JP2018024783A - Organic matter carbonization treatment device and carbonization treatment method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique in which continuous operation cost is significantly improved by circulating and utilizing superheated steam inevitably generated in a series of processing steps. SOLUTION: A storage container, a transfer conveyor, a tubular carbonization treatment furnace having openings at both ends in the length direction, a superheated steam generator, and a supply pipe portion for supplying superheated steam to the inside of the carbonization treatment furnace are provided. , A transfer conveyor is installed inside the carbonization processing furnace, and the end shutters and the partition shutters that are arranged apart from each other in the length direction of the processing furnace to partition the internal space into a plurality of openings open and close. Superheated steam is supplied from the supply pipe to each of the independent internal spaces formed by closing the end shutter and the partition shutter, and the temperature of the supplied superheated steam is variably controlled for each independent internal space. In the organic material carbonization treatment device, a circulation path connecting a pair of independent internal spaces to each other is provided, and superheated steam in one independent internal space is circulated to another independent internal space through the circulation path. .. [Selection diagram] Fig. 1

Description

The present invention relates to an organic carbonization apparatus and a carbonization method that are preferably used for carbonizing food waste such as garbage and food scraps.

  In the conventional carbonization treatment technology for organic matter, a carbonization treatment technology for continuously carbonizing organic matter such as food waste by the present inventors is known (Patent Document 1).

WO2013 / 011555A1

  The technology described in Patent Document 1 includes a storage container for storing organic matter, a transfer conveyor for transferring the storage container, a carbonization furnace composed of a tubular body having openings at both ends in the length direction, and superheated steam. A generator and a supply pipe section for supplying superheated steam generated by the superheated steam generator to the inside of the carbonization furnace, and a plurality of internal spaces are provided at both ends of the carbonization furnace and in an intermediate region in the length direction. The partition shutter is configured to be openable and closable under predetermined control, and superheated steam is supplied from the supply pipe portion to each of the partitioned independent internal spaces, and the superheated steam is supplied to each independent internal space. The temperature is controlled to be different.

  The difference in temperature for each independent internal space is that the processing object contains various substances such as wood, plastic and metal in addition to food residues, and these are processed according to the temperature range. It is what. In the low temperature region upstream, food residues and wood are carbonized and recovered as charcoal, and resin-based processing objects such as plastics, bases, and tires are distilled at a predetermined temperature to recover oil, Metals are also melted and recovered at a temperature suitable for this, and resources can be reused.

  According to this technique, in order to generate superheated steam controlled to a predetermined temperature for each independent internal space, it is necessary to keep each steam generator and various devices associated therewith during operation of the apparatus. For example, seven independent internal spaces are provided, and each independent internal space is controlled at 150 ° C., 300 ° C., 450 ° C., 600 ° C., 450 ° C., 300 ° C., and 150 ° C. from the upstream side to perform carbonization treatment. In this case, each of the seven independent internal spaces operates each steam generator and various devices associated therewith to supply the superheated steam at the predetermined temperature via the supply pipe section. Reduction of fuel cost has been pointed out as a new problem as the technology aiming at further improvement in processing efficiency by continuously operating carbonization.

  Therefore, the present inventor aims to provide a technology that enables efficient continuous operation by effectively using superheated steam, which is inevitably generated in a series of processing steps, that is, circulating use of superheated steam. .

  In order to solve the above-mentioned problem, the organic carbonization apparatus according to claim 1 has a storage container for storing the organic material, a transfer conveyor for transferring the storage container, and openings at both ends in the length direction. A carbonization furnace for a tubular body, a superheated steam generator, and a supply pipe for supplying superheated steam generated in the superheated steam generator to the inside of the carbonization furnace. A transfer conveyor is installed, and an end shutter at openings at both ends of the carbonization furnace, and a partition shutter that divides the internal space into a plurality by being spaced apart in the length direction of the carbonization furnace; Is provided to be openable and closable, and superheated steam is supplied from the supply pipe part to each of a plurality of independent internal spaces formed by closing the end shutter and the partition shutter, and from the supply pipe part An organic carbonization apparatus in which the temperature of superheated steam supplied to each independent internal space is variably controlled for each independent internal space, and a circulation path that connects a pair of independent internal spaces to each other is provided. The superheated steam in one independent internal space is circulated to another independent internal space.

  Moreover, the carbonization apparatus for organic matter according to claim 2 is the structure according to claim 1, wherein the plurality of independent internal spaces are at a maximum temperature from the space located upstream in the transfer direction of the container. One or a plurality of heating process spaces that are controlled so that the temperature gradually increases until reaching the space, a maximum temperature reaching space that reaches the maximum temperature, and gradually toward the downstream side after reaching the maximum temperature. One or a plurality of cooling process spaces controlled so as to lower the temperature, and a pair of independent internal spaces connected to each other by the circulation path, the heating process is regarded as a pair under corresponding temperature conditions One of the spaces and one of the cooling process spaces.

  Further, in the configuration according to claim 2, wherein the process for the cooling process space is performed by supplying superheated steam having a temperature lower than the temperature in the independent internal space. .

  The method for carbonizing an organic substance according to claim 4 includes: a container for containing the organic substance; a transfer conveyor for transferring the container; and a carbonization treatment for a tubular body having openings at both ends in the length direction. A furnace, a superheated steam generator, and a supply pipe section for supplying superheated steam generated by the superheated steam generator to the inside of the carbonization furnace, wherein the transfer conveyor is installed inside the carbonization furnace The end shutters at the openings at both ends of the carbonization furnace, and the partition shutters that divide the internal space into a plurality of parts by being spaced apart in the length direction of the carbonization furnace can be freely opened and closed. Superheated steam is supplied from the supply pipe part to each of a plurality of independent internal spaces formed by closing the end shutter and the partition shutter, and supplied to each independent internal space from the supply pipe part. An organic matter carbonization method in which the temperature of the superheated steam to be variably controlled for each independent internal space is provided with a circulation path connecting the pair of independent internal spaces to each other, and through the circulation path, one independent It is characterized by circulating superheated steam in the internal space to another independent internal space.

  The method for carbonizing an organic substance according to claim 5 is the method according to claim 4, wherein the plurality of independent internal spaces have a maximum temperature from the space located upstream in the transfer direction of the containing container. One or a plurality of heating process spaces that are controlled so that the temperature gradually increases until reaching the space, a maximum temperature reaching space that reaches the maximum temperature, and gradually toward the downstream side after reaching the maximum temperature. One or a plurality of cooling process spaces controlled so as to lower the temperature, and a pair of independent internal spaces connected to each other by the circulation path, the heating process is regarded as a pair under corresponding temperature conditions One of the spaces and one of the cooling process spaces.

  Moreover, the carbonization processing method of the organic substance of Claim 6 is the method of Claim 5, The process with respect to the said cooling process space supplies superheated steam with the temperature lower than the temperature in this independent internal space. It is performed.

  According to the organic carbonization apparatus of the present invention, it is possible to use superheated steam without waste by providing a circulation path, and a significant saving of fuel consumption during continuous operation is realized.

It is the schematic of the carbonization processing apparatus of the organic substance which concerns on this invention. It is a schematic diagram which shows a circulation path.

  One embodiment of an organic carbonization apparatus according to the present invention will be described with reference to the drawings. This equipment is used for garbage and paper scraps from homes and offices, food scraps, plastic waste such as plastic, livestock waste and fresh flower waste, wire cord waste, vapor deposition film waste, It is suitably used for carbonizing various wastes such as fiber wastes with superheated steam.

  The carbonization apparatus 1 includes a storage container 2 for storing a processing object such as an organic substance, a transfer conveyor 3 for transferring the storage container, and a tubular carbonization furnace 4 having openings at both ends in the length direction. And a superheated steam generator (not shown), a supply pipe section 5 for supplying superheated steam generated by the superheated steam generator into the carbonization furnace, a water storage tank for steam (not shown), A boiler (not shown).

  The carbonization furnace 4 is a tubular body having openings 4a and 4b at both ends in the length direction. The opening 4 a is an entrance for the storage container 2 to the processing furnace 4, and the other opening 4 b is an outlet for discharging the storage container 2 to the outside of the processing furnace 4.

  The carbonization furnace 4 has a substantially rectangular cross section. The processing furnace 4 has a bottom wall formed of a floor surface, and a long body having a substantially U-shaped cross section is placed on the floor surface in a sealed state.

  An openable / closable end shutter 6a is attached to the opening 4a at one end of the carbonization furnace 4, and the end shutter 6a can be moved up and down by an open / close cylinder (not shown) or other equivalent mechanism. The opening 4a at one end of the carbonizing furnace 4 can be closed by moving the end shutter 6a downward, and the opening at one end of the carbonizing furnace 4 can be closed by moving the end shutter 6a upward. 4a can be opened.

  An openable / closable end shutter 6b is attached to the opening 4b at the other end of the carbonization furnace 4, and the end shutter 6b can be moved up and down by an open / close cylinder (not shown) or other equivalent mechanism. . The opening 4b at the other end of the carbonization furnace 4 can be closed by moving the end shutter 6b downward, and the other end of the carbonization furnace 4 can be closed by moving the end shutter 6b upward. The opening 4b can be opened.

  In addition, partition shutters 7a to 7f that partition the internal space of the processing furnace 4 are provided to be openable and closable apart from each other in the longitudinal direction of the carbonization furnace 4, and each partition shutter is provided with an opening / closing cylinder (not shown). It can be moved up and down by other equivalent mechanisms.

  In the carbonization furnace 4, the end shutter 6a, the first partition shutter 7a, the second partition shutter 7b, the third partition shutter 7c, the fourth partition shutter 7d, the fifth partition shutter 7e, the sixth partition shutter 7f, the end portion When the shutters 6b are arranged in this order and these adjacent shutters are arranged at equal intervals in the longitudinal direction of the carbonization furnace 4, all the shutters are closed (moved downward). The inner space of the carbonization furnace 4 is, in order from the one opening 8 inlet) 4a side to the other opening (exit) 4b side, the first independent internal space S1, the second independent internal space S2, 3 independent internal spaces S3, 4th independent internal space S4, 5th independent internal space S5, 6th independent internal space S6, 7th independent internal space S7 each independently form a sealed space The one that.

  An exhaust port (not shown) that can be freely opened and closed is provided on the upper surface wall of the carbonization furnace 4 for each of the first independent internal space to the fourth independent internal space.

An openable / closable vent (not shown) is provided in the upper surface wall of the carbonization furnace 4 for each of the fifth independent internal space to the seventh independent internal space. Further, one end of an exhaust duct (not shown) is connected, and an exhaust fan (not shown) is attached to the other end of the duct. Exhaust from the exhaust fan is performed through an exhaust chimney pipe (not shown) having an upper end opened. That is, by driving the exhaust fan with the vents open, the gas in each independent internal space can be exhausted through the exhaust duct and the exhaust chimney tube, and the independent internal space can be air-cooled. .
However, in the present invention, since superheated steam is used in the cooling step, an air cooling mechanism using an exhaust duct or the like may be used as appropriate.

  The transfer conveyors 3b, 3c, 3d, 3e, 3f, 3g, and 3h are set in the internal space of the carbonization furnace 4. That is, in order from one opening (entrance) 4a side to the other opening (exit) 4b side, the first transfer conveyor 3b, the second transfer conveyor 3c, the third transfer conveyor 3d, the fourth transfer conveyor 3e, A fifth transfer conveyor 3f, a sixth transfer conveyor 3g, and a seventh transfer conveyor 3h are arranged. Each transfer conveyor is structured to be driven independently from other conveyors by a conveyor driving device (not shown).

.
The supply conveyor 3a for supplying the storage container to the carbonization furnace 4 is driven independently of the other conveyors by a conveyor driving device (not shown), and stores the processing object that has been carbonized. The discharge conveyor 3i that discharges the carbon dioxide from the carbonization furnace 4 has a structure that is driven independently of other conveyors by a conveyor driving device (not shown).

  The supply conveyor 3a, the transfer conveyors 3b to 3h, and the discharge conveyor 3i can support the container 2 from below and sequentially transfer from the inlet 4a side to the outlet 4b side.

  The storage container 2 is a container for storing a processing object such as food waste. The storage container 2 only needs to be open at least at a part (preferably an upper position) at the top, and in the present embodiment, is a substantially rectangular parallelepiped container having an open top. Although it does not specifically limit as a raw material of 2 of this storage container, The ceramic etc. which can endure high temperature processing are mentioned. The bottom surface of the container 2 has a shape (not shown) including a central horizontal plane portion and a pair of left and right inclined surfaces that are inclined outward from both ends of the horizontal plane portion. Further, a plurality of small holes (not shown) are formed in a part of the bottom surface of the storage container 2, and the metal component mixed in the storage container is melted by superheated steam, and the central horizontal is caused by the inclination. It is configured to flow toward the surface portion and pass through the small hole to be recovered. In this case, the transfer conveyor that transfers the container is also required to have a structure that can recover the molten metal (eg, a structure in which the conveyor is a pair of conveyors spaced apart in the width direction of the carbonization furnace) and falls. A metal recovery container for recovering the molten metal is also required.

  The size of the small holes is not particularly limited, and the long diameter (diameter in the case of a circular shape, and diagonal length in the case of a square) is preferably set to 0.1 mm to 10 mm. The long diameter of the small hole is particularly preferably set to 2 mm to 5 mm.

  Further, a mounting plate (not shown) provided with a plurality of holes in the internal space of the container 2 may be provided. The size of the hole is not particularly limited, but the long diameter (diameter in the case of a circular shape, and diagonal length in the case of a square) is preferably set to 7 mm to 15 mm. By providing such a mounting plate, it is possible to prevent a slightly large foreign matter or the like mixed in the processing object from moving downward from the mounting plate.

  Superheated steam generates water supplied from a water storage tank (not shown) for steam with a boiler (not shown) (eg, once-through steam boiler), and generates superheated steam via a communication pipe (not shown). Sent to a device (not shown).

  The superheated steam generator (not shown) is a device that generates superheated steam from steam, and generates superheated steam from the steam generated by the boiler. In the present embodiment, a superheated steam generator connected to each independent internal space S1 to S7 is disposed.

  Although it does not specifically limit as a superheated steam generator, For example, an induction superheat type superheated steam generator etc. are mentioned. Examples of the temperature of the superheated steam generated by the superheated steam generator include 600 ° C., but are not particularly limited to such conditions. In order to sufficiently carbonize the organic matter, it is preferable to generate superheated steam at 150 ° C. or higher with the superheated steam generator. Among these, in order to sufficiently carry out the carbonization treatment of the organic substance while suppressing the energy cost, it is preferable to have the ability to generate superheated steam at 150 ° C. to 1,000 ° C.

  One end of the supply pipe unit 5 is connected to the superheated steam generator, and the other end is opened in the internal space of the carbonization furnace 4. The carbonization furnace 4 may be supplied from above, from below, or from above and below. Although not shown, a heating device (e.g., a heating burner) for heating the midway position of the supply pipe unit 5 may be separately provided as necessary.

  The “heating process” of the present embodiment will be described. The temperature of the superheated steam supplied from the supply pipe part 5 in the first independent internal space S1 is controlled to be 150 ° C. The temperature of the superheated steam supplied from the supply pipe part 5 in the second independent internal space S2 is controlled to 300 ° C. The temperature of the superheated steam supplied from the supply pipe part 5 in the third independent internal space S3 is controlled to 450 ° C. The temperature of the superheated steam supplied from the supply pipe part 5 in the fourth independent internal space S4 (= maximum temperature reaching space) is controlled to be 600 ° C. The temperature of the superheated steam supplied in each independent internal space is an example, and is not particularly limited to such conditions.

  The following “cooling step” will be described. The temperature of the superheated steam supplied from the supply pipe part 5 in the fifth independent internal space S5 is controlled to be 450 ° C. The temperature of the superheated steam supplied from the supply pipe part 5 in the sixth independent internal space S6 is controlled to be 300 ° C. The temperature of the superheated steam supplied from the supply pipe part 5 in the seventh independent internal space S7 is controlled to be 150 ° C. The temperature of the superheated steam supplied in each independent internal space is an example, and is not particularly limited to such conditions.

  Next, the circulation path 8 that is a feature of the present invention will be described. As shown in FIG. 2, the carbonization apparatus 1 according to the present invention is provided with circulation paths 8a, 8b, and 8c, and has a structure in which a pair of independent internal spaces are connected to each other. Specifically, the fifth independent internal space S5 and the third independent internal space S3 are connected by the circulation path 8a, the sixth independent internal space S6 and the second independent internal space S2 are connected by the circulation path 8b, and the seventh independent The internal space S7 and the first independent internal space S1 are connected by a circulation path 8C.

  Next, an example of a method for carbonizing an organic substance using the carbonization apparatus 1 of the present invention will be described.

  The organic matter to be carbonized is not particularly limited. For example, food waste (garbage, food scraps, etc.), wood (including railway sleepers), plastic, fish nets, and infrastructure (IC Substrate etc.), tires and the like.

  First, during carbonization, the exhaust port (not shown) of the carbonization furnace 4 is opened, and the vent (not shown) is also opened.

  The container 2 containing the organic matter to be treated is placed on the supply conveyor 3a, transferred, transferred to the next first transfer conveyor 3b, and further transferred to the first region F1 of the carbonization furnace 4. Place them.

  Thereafter, the end shutter 6a and the first partition shutter 7a are closed to form the first independent internal space S1. By supplying superheated steam at 150 ° C. from the supply pipe 5 to the first independent internal space S1 for a predetermined time (eg, 90 minutes), the carbonization of the organic matter in the container 2 is advanced.

Next, the end shutter 6a and the first partition shutter 7a are opened, the container 2 in the first independent internal space S1 is transferred by the first transfer conveyor 3b, transferred to the next second transfer conveyor 3c, and further transferred. By doing so, the container 2 is placed in the second region F2 of the carbonization furnace 4.
At the same time, a new container 2 containing the organic matter to be treated is placed on the supply conveyor 3a and transferred, and then transferred to the next first transfer conveyor 3b to further transfer the container 2 The carbonizing furnace 4 is disposed in the first region F1.

After that, the end shutter 6a, the first partition shutter 7a, and the second partition shutter 7b are closed to form the first independent internal space S1 and the second independent internal space S2. By supplying superheated steam at 150 ° C. from the supply pipe 5 to the first independent internal space S1 for a predetermined time (eg, 90 minutes), the carbonization of the organic matter in the container 2 is advanced.
At the same time, carbonization of the organic matter in the container 2 is further advanced by supplying superheated steam at 300 ° C. from the supply pipe section 5 to the second independent internal space S2 for a predetermined time (eg, 180 minutes). Let

Next, the end shutter 6a, the first partition shutter 7a and the second partition shutter 7b are opened, and the container 2 in the second independent internal space S2 is transferred by the second transfer conveyor 3c, and the next third transfer conveyor By moving to 3d and further transferring, the container 2 is placed in the third region F3 of the carbonization furnace 4.
At the same time, the container 2 in the first independent internal space S1 is transferred by the first transfer conveyor 3b, transferred to the next second transfer conveyor 3c, and further transferred, whereby the container 2 is carbonized. It arrange | positions to the 2nd area | region F2 of the processing furnace 4. FIG.
In parallel with these, a new storage container 2 storing the organic matter to be processed is placed on the supply conveyor 3a and transferred, and then transferred to the next first transfer conveyor 3b and further transferred to the storage container. 2 is disposed in the first region F1 of the carbonization furnace 4.

Thereafter, the end shutter 6a, the first partition shutter 7a, the second partition shutter 7b, and the third partition shutter 7c are closed, and the first independent internal space S1, the second independent internal space S2, and the third independent internal space S3 are closed. Let it form. By supplying superheated steam at 150 ° C. from the supply pipe 5 to the first independent internal space S1 for a predetermined time (eg, 90 minutes), the carbonization of the organic matter in the container 2 is advanced.
At the same time, carbonization of the organic matter in the container 2 is further advanced by supplying superheated steam at 300 ° C. from the supply pipe section 5 to the second independent internal space S2 for a predetermined time (eg, 180 minutes). Let
At the same time, carbonization of the organic matter in the container 2 is performed by supplying superheated steam at 450 ° C. from the supply pipe 5 to the third independent internal space S3 for a predetermined time (eg, 270 minutes). Proceed further.

Next, the end shutter 6a, the first partition shutter 7a, the second partition shutter 7b, and the third partition shutter 7c are opened, and the container 2 in the third independent internal space S3 is transferred by the third transfer conveyor 3d, The container 2 is placed in the fourth region F4 of the carbonization furnace 4 by being transferred to the next fourth transfer conveyor 3e and further transferred.
At the same time, the container 2 in the second independent internal space S2 is transferred by the second transfer conveyor 3c, transferred to the next third transfer conveyor 3d, and further transferred, whereby the container 2 is carbonized. It arrange | positions to the 3rd area | region F3 of the processing furnace 4. FIG.
At the same time, the container 2 in the first independent internal space S1 is transferred by the first transfer conveyor 3b, transferred to the next second transfer conveyor 3c, and further transferred, whereby the container 2 Is disposed in the second region F2 of the carbonization furnace 4.
Further, in parallel with these, a new container 2 containing the organic matter to be processed is transferred on the supply conveyor 3a, transferred to the next first transfer conveyor 3b, and further transferred to the container. 2 is disposed in the first region F1 of the carbonization furnace 4.

Thereafter, the end shutter 6a, the first partition shutter 7a, the second partition shutter 7b, the third partition shutter 7c, and the fourth partition shutter 7d are closed, and the first independent internal space S1, the second independent internal space S2, and the second partition shutter 7d are closed. Three independent internal spaces S3 and a fourth independent internal space S4 are formed. By supplying superheated steam at 150 ° C. from the supply pipe 5 to the first independent internal space S1 for a predetermined time (eg, 90 minutes), the carbonization of the organic matter in the container 2 is advanced.
At the same time, carbonization of the organic matter in the container 2 is further advanced by supplying superheated steam at 300 ° C. from the supply pipe section 5 to the second independent internal space S2 for a predetermined time (eg, 180 minutes). Let
At the same time, carbonization of the organic matter in the container 2 is performed by supplying superheated steam at 450 ° C. from the supply pipe 5 to the third independent internal space S3 for a predetermined time (eg, 270 minutes). Proceed further.
Further, in parallel with these, by supplying superheated steam at 600 ° C. from the supply pipe 5 to the fourth independent internal space S4 for a predetermined time (eg, 360 minutes), carbonization of the organic matter in the container 2 is performed. Proceed further.

Next, the end shutter 6a, the first partition shutter 7a, the second partition shutter 7b, the third partition shutter 7c, and the fourth partition shutter 7d are opened, and the container 2 in the fourth independent internal space S4 is transferred to the fourth position. The container 2 is placed in the fifth region F5 of the carbonization furnace 4 by being transferred by the conveyor 3e, transferred to the next fifth transfer conveyor 3f, and further transferred.
At the same time, the storage container 2 in the third independent internal space S3 is transferred by the third transfer conveyor 3d, transferred to the next fourth transfer conveyor 3e, and further transferred, whereby the storage container 2 is carbonized. It arrange | positions to the 4th area | region F4 of the processing furnace 4. FIG.
At the same time, the container 2 in the second independent internal space S2 is transferred by the second transfer conveyor 3c, transferred to the next third transfer conveyor 3d, and further transferred, whereby the container 2 Is disposed in the third region F3 of the carbonization furnace 4.
At the same time, the container 2 in the first independent internal space S1 is transferred by the first transfer conveyor 3b, transferred to the next second transfer conveyor 3c, and further transferred, whereby the container 2 Is disposed in the second region F2 of the carbonization furnace 4.
Further, in parallel with these, a new container 2 containing the organic matter to be processed is transferred on the supply conveyor 3a, transferred to the next first transfer conveyor 3b, and further transferred to the container. 2 is disposed in the first region F1 of the carbonization furnace 4.

Thereafter, the end shutter 6a, the first partition shutter 7a, the second partition shutter 7b, the third partition shutter 7c, the fourth partition shutter 7d, and the fifth partition shutter 7e are closed, and the first independent internal space S1 and the second partition shutter 7e are closed. An independent internal space S2, a third independent internal space S3, a fourth independent internal space S4, and a fifth independent internal space S5 are formed. By supplying superheated steam at 150 ° C. from the supply pipe 5 to the first independent internal space S1 for a predetermined time (eg, 90 minutes), the carbonization of the organic matter in the container 2 is advanced.
At the same time, carbonization of the organic matter in the container 2 is further advanced by supplying superheated steam at 300 ° C. from the supply pipe section 5 to the second independent internal space S2 for a predetermined time (eg, 180 minutes). Let
At the same time, carbonization of the organic matter in the container 2 is performed by supplying superheated steam at 450 ° C. from the supply pipe 5 to the third independent internal space S3 for a predetermined time (eg, 270 minutes). Proceed further.
In parallel with these, the carbonization of the organic matter in the container 2 is performed by supplying superheated steam at 600 ° C. from the supply pipe 5 to the fourth independent internal space S4 for a predetermined time (eg, 360 minutes). Proceed further.
In parallel with these, the carbonization of the organic matter in the container 2 is performed by supplying superheated steam of 450 ° C. from the supply pipe 5 to the fifth independent internal space S5 for a predetermined time (eg, 450 minutes). Proceed further.

Next, the end shutter 6a, the first partition shutter 7a, the second partition shutter 7b, the third partition shutter 7c, the fourth partition shutter 7d, and the fifth partition shutter 7e are opened and accommodated in the fifth independent internal space S5. The container 2 is transferred by the fifth transfer conveyor 3f, transferred to the next sixth transfer conveyor 3g, and further transferred, so that the container 2 is arranged in the sixth zone F6 of the carbonization furnace 4.
At the same time, the container 2 in the fourth independent internal space S4 is transferred by the fourth transfer conveyor 3e, transferred to the next fifth transfer conveyor 3f, and further transferred, whereby the container 2 is carbonized. It arrange | positions to the 5th area | region F5 of the processing furnace 4. FIG.
At the same time, the container 2 in the third independent internal space S3 is transferred by the third transfer conveyor 3d, transferred to the next fourth transfer conveyor 3e, and further transferred, whereby the container 2 Is disposed in the fourth region F4 of the carbonization furnace 4.
At the same time, the container 2 in the second independent internal space S2 is transferred by the second transfer conveyor 3c, transferred to the next third transfer conveyor 3d, and further transferred, whereby the container 2 Is disposed in the third region F3 of the carbonization furnace 4.
At the same time, the container 2 in the first independent internal space S1 is transferred by the first transfer conveyor 3b, transferred to the next second transfer conveyor 3c, and further transferred, whereby the container 2 Is disposed in the second region F2 of the carbonization furnace 4.
Further, in parallel with these, a new container 2 containing the organic matter to be processed is transferred on the supply conveyor 3a, transferred to the next first transfer conveyor 3b, and further transferred to the container. 2 is disposed in the first region F1 of the carbonization furnace 4.

Thereafter, the end shutter 6a, the first partition shutter 7a, the second partition shutter 7b, the third partition shutter 7c, the fourth partition shutter 7d, the fifth partition shutter 7e, and the sixth partition shutter 7f are closed, and the first independent shutter is closed. An internal space S1, a second independent internal space S2, a third independent internal space S3, a fourth independent internal space S4, a fifth independent internal space S5, and a sixth independent internal space S6 are formed. By supplying superheated steam at 150 ° C. from the supply pipe 5 to the first independent internal space S1 for a predetermined time (eg, 90 minutes), the carbonization of the organic matter in the container 2 is advanced.
At the same time, carbonization of the organic matter in the container 2 is further advanced by supplying superheated steam at 300 ° C. from the supply pipe section 5 to the second independent internal space S2 for a predetermined time (eg, 180 minutes). Let
At the same time, carbonization of the organic matter in the container 2 is performed by supplying superheated steam at 450 ° C. from the supply pipe 5 to the third independent internal space S3 for a predetermined time (eg, 270 minutes). Proceed further.
In parallel with these, the carbonization of the organic matter in the container 2 is performed by supplying superheated steam at 600 ° C. from the supply pipe 5 to the fourth independent internal space S4 for a predetermined time (eg, 360 minutes). Proceed further.
In parallel with these, the carbonization of the organic matter in the container 2 is performed by supplying superheated steam at 450 ° C. from the supply pipe 5 to the fifth independent internal space S5 for a predetermined time (eg, 450 minutes). Proceed further.
Further, in parallel with these, by supplying superheated steam at 300 ° C. from the supply pipe 5 to the sixth independent internal space S6 for a predetermined time (eg, 540 minutes), carbonization of the organic matter in the container 2 is performed. Proceed further.

Next, the end shutter 6a, the first partition shutter 7a, the second partition shutter 7b, the third partition shutter 7c, the fourth partition shutter 7d, the fifth partition shutter 7e, and the sixth partition shutter 7f are opened, and the sixth independent shutter is opened. The container 2 in the internal space S6 is transferred by the sixth transfer conveyor 3g, transferred to the next seventh transfer conveyor 3h, and further transferred to arrange the container 2 in the seventh region F7 of the carbonization furnace 4. Let me.
At the same time, the container 2 in the fifth independent internal space S5 is transferred by the fifth transfer conveyor 3f, transferred to the next sixth transfer conveyor 3g, and further transferred, whereby the container 2 is carbonized. It arrange | positions to the 6th area | region F6 of the processing furnace 4. FIG.
In parallel with this, the container 2 in the fourth independent internal space S4 is transferred by the fourth transfer conveyor 3e, transferred to the next fifth transfer conveyor 3f, and further transferred, whereby the container 2 Is disposed in the fifth region F5 of the carbonization furnace 4.
At the same time, the container 2 in the third independent internal space S3 is transferred by the third transfer conveyor 3d, transferred to the next fourth transfer conveyor 3e, and further transferred, whereby the container 2 Is disposed in the fourth region F4 of the carbonization furnace 4.
At the same time, the container 2 in the second independent internal space S2 is transferred by the second transfer conveyor 3c, transferred to the next third transfer conveyor 3d, and further transferred, whereby the container 2 Is disposed in the third region F3 of the carbonization furnace 4.
At the same time, the container 2 in the first independent internal space S1 is transferred by the first transfer conveyor 3b, transferred to the next second transfer conveyor 3c, and further transferred, whereby the container 2 Is disposed in the second region F2 of the carbonization furnace 4.
Further, in parallel with these, a new container 2 containing the organic matter to be processed is transferred on the supply conveyor 3a, transferred to the next first transfer conveyor 3b, and further transferred to the container. 2 is disposed in the first region F1 of the carbonization furnace 4.

After that, the end shutter 6a, the first partition shutter 7a, the second partition shutter 7b, the third partition shutter 7c, the fourth partition shutter 7d, the fifth partition shutter 7e, the sixth partition shutter 7f and the end shutter 6b are closed. The first independent internal space S1, the second independent internal space S2, the third independent internal space S3, the fourth independent internal space S4, the fifth independent internal space S5, the sixth independent internal space S6, and the seventh independent internal space S7. Form. By supplying superheated steam at 150 ° C. from the supply pipe 5 to the first independent internal space S1 for a predetermined time (eg, 90 minutes), the carbonization of the organic matter in the container 2 is advanced.
At the same time, carbonization of the organic matter in the container 2 is further advanced by supplying superheated steam at 300 ° C. from the supply pipe section 5 to the second independent internal space S2 for a predetermined time (eg, 180 minutes). Let
At the same time, carbonization of the organic matter in the container 2 is performed by supplying superheated steam at 450 ° C. from the supply pipe 5 to the third independent internal space S3 for a predetermined time (eg, 270 minutes). Proceed further.
In parallel with these, the carbonization of the organic matter in the container 2 is performed by supplying superheated steam at 600 ° C. from the supply pipe 5 to the fourth independent internal space S4 for a predetermined time (eg, 360 minutes). Proceed further.
In parallel with these, the carbonization of the organic matter in the container 2 is performed by supplying superheated steam at 450 ° C. from the supply pipe 5 to the fifth independent internal space S5 for a predetermined time (eg, 450 minutes). Proceed further.
In parallel with these, the carbonization of the organic matter in the container 2 is performed by supplying superheated steam at 300 ° C. from the supply pipe 5 to the sixth independent internal space S6 for a predetermined time (eg, 300 minutes). Proceed further.
Further, in parallel with these, by supplying superheated steam at 150 ° C. from the supply pipe 5 to the seventh independent internal space S7 for a predetermined time (eg, 630 minutes), carbonization of the organic matter in the container 2 is performed. Proceed further.

  Next, the end shutter 6a, the first partition shutter 7a, the second partition shutter 7b, the third partition shutter 7c, the fourth partition shutter 7d, the fifth partition shutter 7e, the sixth partition shutter 7f, and the end partition shutter 6b are connected. Opened, the container 2 in the seventh independent internal space S7 is transferred by the seventh transfer conveyor 3h, transferred to the next discharge conveyor 3i, and the carbonization of the organic matter in the container 2 is completed. In the storage container 2 discharged to the discharge conveyor 3i, carbide (charcoal) obtained by carbonization is present.

  As described above, the object to be treated in the container 2 is recovered as charcoal by being carbonized at a temperature corresponding to the properties and characteristics of the object to be treated by superheated steam treatment in each region of the carbonization furnace 4. The metal is melted and recovered. Although not shown, it is also possible to condense vaporized components (thermal decomposition components, via components, heavy oil components, kerosene components, etc.) from organic substances by using a condenser and recover them as liquids (condensates).

  As described above, in the above-described processing step, it is necessary to operate the superheated steam generator and various devices associated therewith for each independent internal space and continue to supply superheated steam as appropriate. However, when processing a large amount of organic matter, continuous operation for 24 hours is desired. During such continuous operation, consumption of fuel resources such as oil is preferably minimized. In order to spread organic matter treatment with superheated steam that can recover fuel, such as oil and charcoal, because it has achieved odorless and low-frequency treatment regardless of the treatment target, this fuel cost problem It needs to be solved.

  Therefore, in the carbonization treatment premised on continuous operation, the present inventor provided circulation paths 8a, 8b, and 8c that mutually connect a pair of independent internal spaces, as shown in FIG. This problem was solved by circulating superheated steam in one independent internal space to another independent internal space.

[Circulation path 8a]
The circulation path 8a connects the fifth independent internal space S5 and the third independent internal space S3.
The container 2 heated to 300 ° C. in the second independent internal space S2 is transferred into the third independent internal space S3 and supplied with superheated steam at 450 ° C. That is, in the third independent internal space S3, there is a heating process in which a temperature change from 300 ° C. to 450 ° C. occurs.

  On the other hand, in the fifth independent internal space S5, the container 2 heated to 600 ° C. in the fourth independent internal space S4 is transferred into the fifth independent internal space S5 and supplied with superheated steam at 450 ° C. Yes. That is, in the fifth independent internal space S5, there is a cooling process in which a temperature change from 600 ° C. to 450 ° C. occurs.

  Cooling from 600 ° C. to 450 ° C. filling the fifth independent internal space S5 by connecting the fifth independent internal space S5 and the third independent internal space S3 through the circulation path 8a so that superheated steam can flow in and out. Since the superheated steam in the process flows into the third independent internal space S3, the superheated steam generator is not operated to supply 450 ° C superheated steam into the third independent internal space S3. It becomes possible to raise the inside of the third independent internal space S3 from 300 ° C. to 450 ° C.

[Circulation path 8b]
The circulation path 8b connects the sixth independent internal space S6 and the second independent internal space S2.
The container 2 heated to 150 ° C. in the first independent internal space S1 is transferred into the second independent internal space S2 and supplied with 300 ° C. superheated steam. That is, in the second independent internal space S2, there is a heating process in which a temperature change from 150 ° C. to 300 ° C. occurs.

  On the other hand, in the sixth independent internal space S6, the container 2 cooled to 4500 ° C. in the fifth independent internal space S5 is transferred into the sixth independent internal space S6 and supplied with superheated steam at 300 ° C. Yes. That is, the sixth independent internal space S6 is in a cooling process in which a temperature change from 450 ° C. to 300 ° C. occurs.

  The sixth independent internal space S6 and the second independent internal space S2 are connected to each other so that superheated steam can flow in and out through the circulation path 8b, thereby cooling the sixth independent internal space S6 from 450 ° C. to 300 ° C. Since the superheated steam in the process flows into the second independent internal space S2, the superheated steam generator is not operated to supply 300 ° C superheated steam into the second independent internal space S2. It becomes possible to raise the inside of 2nd independent internal space S2 from 150 degreeC to 300 degreeC.

[Circuit path 8c]
The circulation path 8c connects the seventh independent internal space S7 and the first independent internal space S1.
150 degreeC superheated steam is going to be supplied to the container 2 which is going to be heated to 150 degreeC in 1st independent internal space S1. That is, in the first independent internal space S1, there is a heating process in which a temperature change from room temperature to 150 ° C. occurs.

  On the other hand, in the seventh independent internal space S7, the container 2 cooled to 300 ° C. in the sixth independent internal space S6 is transferred into the seventh independent internal space S7 and supplied with 150 ° C. superheated steam. Yes. That is, in the seventh independent internal space S6, there is a cooling process in which a temperature change from 300 ° C. to 150 ° C. occurs.

  Cooling from 300 ° C. to 150 ° C. filling the seventh independent internal space S7 by connecting the seventh independent internal space S7 and the first independent internal space S1 through the circulation path 8c so that superheated steam can flow in and out. Since the superheated steam in the process flows into the first independent internal space S1, the superheated steam generator or the like is not operated to supply the 150 ° C superheated steam into the first independent internal space S1. It becomes possible to raise the inside of 1st independent internal space S1 from normal temperature to 150 degreeC.

  As described above, according to the present invention, the fourth independent internal space S4 that is the maximum temperature reaching space and the fifth independent internal space S5, the sixth independent internal space S6, and the seventh independent internal space S7 that are in the cooling process are predetermined. It is possible to operate continuously only by operating a superheated steam generator and various devices associated therewith in order to supply superheated steam, and it is possible to significantly reduce fuel consumption compared to a device without the above-mentioned circulation path 8. Become.

  The present invention has applicability in various industrial fields as a technology that promotes the efficient use of all processing apparatuses and processing methods using superheated steam.

DESCRIPTION OF SYMBOLS 1 Carbonization processing apparatus 2 Container 3 Transfer conveyor 4 Carbonization furnace 5 Supply pipe part 6 End shutter 7 Partition shutter 8 Circulation path

Claims (6)

A storage container for storing organic matter;
A transfer conveyor for transferring the container;
A tubular body carbonization furnace having openings at both ends in the length direction;
A superheated steam generator;
A supply pipe section for supplying superheated steam generated in the superheated steam generator to the inside of the carbonization furnace,
A configuration in which the transfer conveyor is installed inside the carbonization furnace,
End shutters at openings at both ends of the carbonization furnace,
A partition shutter that partitions the internal space into a plurality of parts by disposing them in the longitudinal direction of the carbonization furnace is provided so as to be openable and closable.
Superheated steam is supplied from the supply pipe part to each of the plurality of independent internal spaces formed by closing the end shutter and the partition shutter, and is supplied from the supply pipe part to each independent internal space. An organic carbonization apparatus in which the temperature of the organic material is variably controlled for each independent internal space,
A circulation path connecting a pair of independent internal spaces to each other is provided.
An organic carbonization apparatus characterized by circulating superheated steam in one independent internal space to another independent internal space through the circulation path. The plurality of independent internal spaces are controlled so that the temperature is gradually increased from the space located upstream in the transfer direction of the storage container to the space reaching the maximum temperature. Space,
The highest temperature space to reach the highest temperature,
After reaching the maximum temperature, it consists of one or more cooling process spaces controlled so that the temperature gradually decreases toward the downstream side,
A pair of independent internal spaces connected to each other by the circulation path,
The organic carbonization apparatus according to claim 1, wherein the apparatus is one of the heating process space and one of the cooling process spaces that are regarded as a pair under a corresponding temperature condition. The apparatus for carbonizing an organic substance according to claim 2, wherein the process for the cooling process space is performed by supplying superheated steam having a temperature lower than the temperature in the independent internal space. A storage container for storing organic matter;
A transfer conveyor for transferring the container;
A tubular body carbonization furnace having openings at both ends in the length direction;
A superheated steam generator;
A supply pipe section for supplying superheated steam generated in the superheated steam generator to the inside of the carbonization furnace,
A configuration in which the transfer conveyor is installed inside the carbonization furnace,
End shutters at openings at both ends of the carbonization furnace,
A partition shutter that partitions the internal space into a plurality of parts by disposing them in the longitudinal direction of the carbonization furnace is provided so as to be openable and closable.
Superheated steam is supplied from the supply pipe part to each of the plurality of independent internal spaces formed by closing the end shutter and the partition shutter, and is supplied from the supply pipe part to each independent internal space. Is a method for carbonizing an organic substance in which the temperature of the organic material is variably controlled for each independent internal space,
A circulation path connecting a pair of independent internal spaces to each other is provided.
A method for carbonizing an organic substance, characterized in that superheated steam in one independent internal space is circulated to another independent internal space through the circulation path. The plurality of independent internal spaces are controlled so that the temperature is gradually increased from the space located upstream in the transfer direction of the storage container to the space reaching the maximum temperature. Space,
The highest temperature space to reach the highest temperature,
After reaching the maximum temperature, it consists of one or more cooling process spaces controlled so that the temperature gradually decreases toward the downstream side,
A pair of independent internal spaces connected to each other by the circulation path,
5. The method for carbonizing an organic substance according to claim 4, wherein the heating process space and the cooling process space are regarded as a pair under a corresponding temperature condition. The method for carbonizing an organic substance according to claim 5, wherein the process for the cooling process space is performed by supplying superheated steam having a temperature lower than the temperature in the independent internal space.

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