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WO2018135583A1 - Mécanisme de déplacement en forme de spirale, et four rotatif horizontal équipé d'un mécanisme de déplacement en forme de spirale - Google Patents

Mécanisme de déplacement en forme de spirale, et four rotatif horizontal équipé d'un mécanisme de déplacement en forme de spirale Download PDF

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Publication number
WO2018135583A1
WO2018135583A1 PCT/JP2018/001384 JP2018001384W WO2018135583A1 WO 2018135583 A1 WO2018135583 A1 WO 2018135583A1 JP 2018001384 W JP2018001384 W JP 2018001384W WO 2018135583 A1 WO2018135583 A1 WO 2018135583A1
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Prior art keywords
spiral
face plate
inlet
moving mechanism
path
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PCT/JP2018/001384
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English (en)
Japanese (ja)
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WO2018135583A4 (fr
Inventor
小島　紀徳
拓哉 伊藤
昭道 八太
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Ostrand Corp
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Ostrand Corp
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Priority to JP2018562430A priority Critical patent/JP6973803B2/ja
Publication of WO2018135583A1 publication Critical patent/WO2018135583A1/fr
Publication of WO2018135583A4 publication Critical patent/WO2018135583A4/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/08—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles
    • B01J8/10—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles moved by stirrers or by rotary drums or rotary receptacles or endless belts
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/72—Other features
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K5/00—Feeding or distributing other fuel to combustion apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories or equipment specially adapted for rotary-drum furnaces

Definitions

  • the present invention relates to a spiral moving mechanism and a horizontal rotary furnace provided with the spiral moving mechanism.
  • woody biomass is attracting attention as an alternative fuel, and steam turbine power generation using combustion as an energy conversion technology.
  • woody biomass can be continuously regenerated, it is a non-uniform solid and has poor handling properties, and combustion requires treatment of harmful oxides such as dioxin contained in the exhaust gas.
  • the problem is that power generation efficiency is low. Therefore, the inventors paid attention to the pyrolysis gasification of biomass and invented a new type device having a spiral moving mechanism as its device structure. Thereby, the gas fuel which is excellent in handling property and has a high calorific value can be obtained.
  • Heat is required for the pyrolysis gasification reaction (endothermic reaction) of organic matter, but it can be broadly divided into direct gasification and indirect gasification depending on the heat supply method.
  • direct gasification air or oxygen is blown into the reactor, a part of the pyrolysis product is combusted, and a gasification reaction (endothermic reaction) is caused by the heat.
  • gasification reaction endothermic reaction
  • indirect gasification requires a separate device that supplies the amount of heat necessary for gasification, but the generated gas does not dilute because no air or oxygen is used in the device, and the resulting gas has a high calorific value.
  • a two-column circulating fluidized bed gasifier This is a method in which two fluidized beds are used as a reactor, divided into a gasification tower and a combustion tower, and the high-temperature fluidized medium particles of the combustion tower are sent to the gasification tower to perform gasification with the heat generated in the combustion tower. is there. Since only the fluid medium particles circulate between the two towers and supply heat into the reaction apparatus, partial combustion becomes unnecessary and a high calorific value gas can be obtained.
  • a fluidized bed having a single tower and double tower circulation function in which a partition plate is provided in a single tower and fluidized medium particles circulate through the gasification section and the combustion section has been proposed.
  • woody biomass is distributed in the region, so a small-scale distributed process is preferable from the viewpoint of aggregation cost.
  • the process using a fluidized bed is not suitable for woody biomass because it is large even if it is a single tower type and it is difficult to reduce the scale.
  • This horizontal rotary cylinder furnace has two functions: it can circulate particles in the horizontal rotary cylinder furnace by installing a spiral small cylinder with the opposite direction of winding in the inside. One of them is to separate the pyrolysis zone and the combustion zone by forming a gas seal with a particle layer filled in a small spiral cylinder, and supply the combustion heat to the pyrolysis zone by circulating movement of solid particles. Yes (see Patent Document 1).
  • the other is used as a gas-solid contact reaction device for promoting gas and solid contact reaction by allowing gas to pass through a particle layer filled in a spiral cylinder (see Patent Document 2, etc.). .
  • the chemical reaction includes combustion of solid particles, thermal decomposition, and the like, and there is a so-called contact reaction in which the solid particles have a catalytic action.
  • Physical phenomena include solid particle drying, pulverization, classification, granulation, gas adsorption and desorption, etc. The occurrence, promotion or control of these factors uses factors such as temperature and pressure. Substances and heat transfer between them, but the contact efficiency between the solid particle surface and the gas is the main factor that determines the performance.
  • FIGS. Development and practical use As an apparatus for contacting the solid particles and the gas, (a) a fixed layer, (b) a vertical moving layer, and (c), (d), (e) shown in FIGS. (C) Conveyor horizontal moving layer, (d) Inclined moving layer, (e) Screw moving layer, (f) Fluidized bed, (g) Spouted bed, etc. shown in FIGS. Development and practical use.
  • the present invention relates to a spiral moving mechanism and a horizontal rotary furnace equipped with a spiral moving mechanism, and the effects can be roughly divided into (1) heat transfer by solid circulation and (2) gas-solid contact reaction. .
  • Part 1 Heat transfer by solid circulation
  • Patent Document 1 When manufacturing a small cylinder having a helical structure therein, it was difficult to weld the helical structure into the small cylinder, and the joints were peeled off and peeled off. There is a possibility of gas mixing through the part.
  • the present invention provides a spiral moving mechanism as a structure that is easy to create, in which only particles circulate between the two reaction chambers and does not easily mix with gas, and a horizontal rotary cylindrical furnace having the spiral moving mechanism therein. This is the first purpose.
  • the present invention is a new device having a principle and structure that is different from any of conventional gas-solid contact devices, and thus it is necessary to uniformly align the problems of the conventional device, for example, the type, shape and dimensions of the raw material solids. It is intended to solve the problems such as that there is a temperature distribution in the solid particle layer and that a large operating power is required.
  • the inventors pay attention to a horizontal rotating body, in which a large number of solid particles are filled in a high density, and the relative positional relationship of the solid particles is constantly fluctuating due to the rotation of the apparatus body (hereinafter referred to as “the body”).
  • a gas having a structure hereinafter referred to as a rotating gas-solid contact structure
  • the entire amount of gas passes through the filled solid rolling space in contact with the entire surface of the solid particles.
  • the position of the filled solid rolling space may be in any of parallel, vertical, or oblique space to the rotation axis of the horizontal rotating body, and the number thereof is one or more, and the shape thereof is a cylinder, Depends on the type of rotating gas-solid contact structure such as a semi-cylindrical shape.
  • the spiral cylinder is one form, and has already been filed by the inventors as a patent (see Patent Document 2).
  • Part 2 gas-solid contact reaction
  • a second object of the present invention is to provide a spiral moving mechanism that is easy to make and has high gas-solid contact efficiency, and a horizontal rotary cylindrical furnace having the spiral moving mechanism inside.
  • the spiral moving mechanism of the present invention includes a first face plate formed in a disk shape and a second face plate formed in a disk shape.
  • the horizontal rotary cylindrical furnace of the present invention includes the above-described spiral movement mechanism, a first chamber connected to the first face plate of the spiral movement mechanism, and the second chamber of the spiral movement mechanism. A second room connected to the face plate.
  • the spiral moving mechanism of the present invention includes the first face plate formed in a disk shape, the second face plate formed in a disk shape, and the first inlet provided in the first face plate. And a first outlet, a second inlet and a second outlet provided in the second face plate, a clockwise spiral first path leading from the first inlet to the second outlet, and a second And a counterclockwise spiral second path connected from the inlet to the first outlet.
  • the gas in the first room and the gas in the second room are sucked out of the room by separate gas pumps. Since it is such a configuration, it is easy to create, and only the particles circulate between the two reaction chambers, so that the gas is difficult to mix.
  • the spiral moving mechanism of the present invention includes a first face plate formed in a disk shape, a second face plate formed in a disk shape, a first inlet provided in the first face plate, and a first face plate. 1 outlet, a second inlet and a second outlet provided in the second face plate, a clockwise spiral first path leading from the first inlet to the second outlet, and a second inlet And a counterclockwise spiral second path connected to the first outlet.
  • the gas in the second chamber is sucked by the gas pump, and as a result, the gas in the first chamber also flows into the second chamber via the spiral.
  • FIG. 5 is a conceptual diagram illustrating spiral movement mechanisms A to D. It is a photograph of a resin pellet and a wood powder pellet. It is a graph which shows the relationship between the moving speed when there is a bay window, and when there is no bay window, and the average residual particle amount. It is a graph which shows the relationship between the moving speed of each spiral moving mechanism, and an average residual particle amount. It is a graph which shows the relationship between the particle filling amount in each spiral movement mechanism, and the amount of residual particles. It is a side view of each spiral moving mechanism. It is a graph which shows the relationship between the moving speed for every input amount, and an average residual particle amount.
  • 3 is a horizontal rotary furnace according to a second embodiment. It is a disassembled perspective view of the spiral moving mechanism of Example 2. It is explanatory drawing explaining the contact of gas and solid. It is explanatory drawing of a spiral-shaped rotary gas-solid contact structure. It is explanatory drawing of the rotation gas-solid contact structure equipped with the vertical surface to the rotating shaft in the horizontal rotating cylinder combining the spiral tube of the opposite direction. It is explanatory drawing of the drying apparatus as a horizontal rotary furnace provided with a pair of forward and reverse spiral spirals. It is a top view of a spiral moving mechanism provided with a return member. It is an exploded view explaining the structure of an intake flow path. It is explanatory drawing of the apparatus which performs steam reforming which mounts two spiral moving mechanisms.
  • Example 1 An experiment conducted on the spiral moving mechanism in Example 1 will be described. Next, an embodiment in which the spiral moving mechanism is applied to a horizontal rotary furnace in the second embodiment will be described.
  • FIG. 1 a conceptual diagram of the horizontal rotary furnace of the present invention is shown in FIG.
  • particles in the reaction chamber flow into the moving mechanism from the hole formed in the outer periphery of the spiral flow path of the moving mechanism existing in the central part of FIG.
  • the spiral moving mechanism is filled with particles, a gas seal is formed.
  • This gasifier is not limited to pure woody biomass, and it is considered that it can be used for gasification of organic resources such as coal and organic waste mixed with biomass and plastic.
  • a cold model is used to develop a new horizontal rotating cylindrical furnace with a spiral moving mechanism.
  • This apparatus There are two important points in this apparatus, which are the particle filling rate in the spiral moving mechanism necessary for gas sealing and the moving speed of the particles for supplying heat from the combustion chamber.
  • Experimental apparatus and method A cold model is a transparent vinyl chloride cylinder having an inner diameter of 200 (mm) and an overall length of 645 (mm), and a spiral moving mechanism A having an outer diameter of 200 (mm) and a width of 45 (mm) installed in the center. , B, C or D are separated into left and right chambers. In this embodiment, this room is referred to as a particle reservoir.
  • a semi-cylindrical bay window mechanism was installed at the inlet of the outer periphery of the moving mechanism in order to improve the efficiency of particle uptake into the spiral moving mechanism.
  • the inlet and outlet of the flow path on one side of the spiral moving mechanism are blocked, and the particles move only from the right particle reservoir to the left particle reservoir, and move to each other. I tried not to.
  • the spiral moving mechanism used is shown in FIG.
  • Plastic pellets (bulk density of 541 (kg / m3), true density of 920 (kg / m3), diameter of about 5 (mm), height of about 2 (mm)) or wood as sample particles on the right side of the cold model or wood 2,000 (g) of powder pellets (bulk density 665 (kg / m3), true density 1297 (kg / m3), diameter of about 5 (mm), height of about 15 to 25 (mm)) are put into a ball mill Using two rotating stands (Asahi Rika Seisakusho, AV-1), the table was rotated horizontally at 10 (rpm). The apparatus was stopped every 5 rotations, and the particles moved to the left side were collected and weighed. At the same time, the spiral moving mechanism was removed, the weight of the particles filled therein was measured, and the spiral moving mechanism was observed from the side to confirm the presence or absence of gas seal formation. A photograph of the sample particles used is shown in FIG.
  • FIG. 4 shows the relationship between the moving speed and the average residual particle amount in the particle reservoir.
  • FIG. 4 shows that the moving speed of the particles is higher when the spiral moving mechanism with the bay window is used than when the bay window is not installed at the particle inlet. This is considered to be because the particles efficiently flow into the moving mechanism by the bay window.
  • all studies were conducted using a spiral moving mechanism with a bay window.
  • FIG. 5 shows the relationship between the particle movement speed per five revolutions when changing the spiral moving mechanism and the average residual particle amount in the particle storage portion, and the relationship between the particle filling amount and the residual particle amount in the spiral moving mechanism at that time. The relationship is shown in FIG. Further, FIG. 7 shows a side view of the spiral moving mechanism after 30 rotations.
  • FIG. 5 shows that the moving speed becomes a constant value at about 10 rotations (second plot from the right) regardless of which spiral moving mechanism is used. From this, it was found that the moving speed becomes almost steady at 10 rotations in this experimental apparatus.
  • the particle moving speed is highest when the moving mechanism A having a ratio of the particle inlet to the outlet of 1: 1 and the number of turns of 1 is used, the ratio of the particle inlet to the outlet is 2 to 1, and the number of turns is 1 It can be seen that the particle moving speed becomes the smallest when the moving mechanism D having a volume of 5 is used.
  • the moving mechanism C in which the ratio of the particle inlet to the outlet is 2 to 1 and the number of turns is 1 and the moving mechanism B in which the ratio of the particle inlet to the outlet is 1 to 1 and the number of turns is 1.5 are almost equal. It turns out that it becomes.
  • the size of the exit is the largest at 31.0 (mm) for the moving mechanism A, followed by 22.8 (mm) for both the moving mechanisms B and C, and 17.8 (mm for the moving mechanism D. mm) and the smallest. Comparing the size of this exit with the result of FIG. 4, it can be seen that the larger the exit, the higher the moving speed. Since the diameter of the moving mechanism is constant, and the inlet diameter is increased, the outlet diameter is reduced accordingly, so that the inflow amount increases but the outlet cannot be clogged and cannot flow out, resulting in a decrease in the moving amount. In addition, when the number of turns is increased, both the inlet diameter and the outlet diameter are reduced, so that the moving amount is considered to decrease. Therefore, it is considered that the moving mechanism A having the largest exit diameter was able to move the particles fastest. From this, it was found that the amount of particle movement depends on the size of the outlet.
  • the filling amount in the moving mechanism is Is small.
  • the filling amounts into the moving mechanisms C and D are substantially equal, but the filling amount into the A is larger than that of the moving mechanism B.
  • the moving mechanism C has the largest inlet diameter of 47.5 (mm), followed by 37.6 (mm) of the moving mechanism D, and 31 (mm) of the moving mechanism A.
  • Mechanism B 22.8 (mm) follows.
  • the inlet diameter is equal to the outlet diameter
  • the larger the inlet diameter the larger the filling amount into the moving mechanism.
  • the moving mechanism filling amount is almost constant. . This is presumably because more particles flow into the moving mechanism as the inlet diameter of the spiral moving mechanism is larger.
  • the outlet becomes a bottleneck and particle congestion occurs in the moving mechanism, resulting in a large filling amount.
  • the outlet is small, so that all the particles that flowed in cannot flow out, and some particles flow backward with rotation. It is thought that there is no significant change.
  • the formation of the gas seal can be confirmed with the moving mechanisms C and D having a large filling amount, but not with the moving mechanisms A and B.
  • FIG. 8 shows the particle filling amount in the moving mechanism and the residual particle amount in the particle storage unit at that time. Note that the operation was performed up to 120 revolutions only when the amount of charged particles was 2000 (g). Moreover, the result at the time of performing 120 rotation operation using wood powder pellet 2000 (g) as input particle
  • the particle movement speed is about 100 (g / 5 rotations), and the particle amount rapidly increases from about 500 (g). It can be seen that the moving speed decreases. From this, it has been found that under the present experimental conditions, the particle amount in the particle reservoir can be stably operated up to about 500 (g).
  • the horizontal rotary furnace 1 having the spiral moving mechanism 2 will be described with reference to FIGS.
  • the horizontal rotary furnace 1 includes a spiral moving mechanism 2 near the center, a first chamber 51 on the right side in the drawing, and a second chamber on the left side in the drawing. And a room 52. That is, the horizontal rotary furnace 1 includes a second chamber 52, a spiral moving mechanism 2, and a first chamber 51 in this order.
  • the horizontal rotary furnace 1 passes through the centers of a first face plate 31 (described later) and a second face plate 32 (described later) and rotates around a rotation axis that is disposed substantially horizontally.
  • the axis of rotation is horizontal or inclined 3-5 degrees. That is, the “horizontal” of the “horizontal rotary furnace” in the present invention includes, of course, strictly horizontal, but is not limited to this, and is defined as a concept including a minute amount of inclined state.
  • the spiral moving mechanism 2 includes a first face plate 31 formed in a disk shape, and a second face plate 32 that is parallel to the first face plate 31 and formed in a disk shape.
  • the first inlet 31a and the first outlet 31b provided in the first face plate 31, the second inlet 32a and the second outlet 32b provided in the second face plate 32, and the first inlet 31a to the second A clockwise spiral first path 41 connected to the second outlet 32b, and a counterclockwise spiral second path 42 connected from the second inlet 32a to the first outlet 31b.
  • the spiral moving mechanism 2 has a gas seal function that transports a solid (mainly a heat medium) through the first path 41 and the second path 42 but does not allow gas to pass therethrough.
  • the first path 41 enters from the first inlet 31a, and after swirling clockwise, This is a route exiting from the second exit 32b.
  • the second path 42 enters from the second inlet 32a, and after swirling counterclockwise, the first outlet 31b. It is a route to leave.
  • the first inlet 31a and the second inlet 32a are disposed outside the first face plate 31 and the second face plate 32, respectively, and the first outlet 31b and the second outlet 32b are respectively the first face plate 31 and the second face plate 32.
  • the face plate 31 and the second face plate 32 are disposed inward.
  • the partition wall outside the first path 41 is a partition wall inside the second path 42
  • the partition wall outside the second path 42 is a partition wall inside the first path 41.
  • Both the paths 41 and 42 have a function of conveying the solid from the inlet to the outlet and blocking (sealing) the gas by rotating the horizontal rotary furnace 1. That is, the passage of gas is blocked by filling the particles so as to block the cross sections of the paths 41 and 42.
  • the particle filling amount into the spiral moving mechanism 2 depends on the size of the inlet diameter and the inlet / outlet diameter ratio, the cross section is closed at any position in the path 41 or 42. It is necessary to adjust the size of the entrance diameter and the entrance / exit diameter ratio.
  • the moving speed can be significantly increased by attaching bay windows to the inlets 31a and 32a.
  • the moving speed of the particles depends on the diameters of the outlets 31b and 32b of the spiral moving mechanism 2
  • the particle filling amount in the moving mechanism depends on the diameters of the inlets 31a and 32a and the inlet / outlet diameter ratio.
  • the diameters of the inlets 31a and 32a of the spiral moving mechanism 2 need to be larger than the diameters of the outlets 31b and 32b.
  • the first chamber 51 is, for example, a combustion chamber, and unreacted fuel (char) generated in the gasification furnace is transported to the second chamber 52 together with a circulation medium (for example, sand), and the fuel (char) is generated by air. Burns to supply heat to the circulating medium (solid, eg sand). The exhaust gas is taken out from the first room 51. The circulating medium having heat moves from the first room 51 to the second room 52 through the first path 41. At this time, the gas is sealed.
  • a circulation medium for example, sand
  • the second chamber 52 is, for example, a gasification chamber, into which an organic substance is charged, and is mainly converted into carbon monoxide and hydrogen by thermal decomposition and reaction with water vapor. These gases are taken out from the second chamber 52.
  • the heat necessary for the pyrolysis is transferred from the first chamber 51 to the second chamber 52 via a circulating medium (for example, sand).
  • the circulating medium and unreacted fuel (char) move from the second chamber 52 to the first chamber 51 through the second path 42. At this time, the gas is sealed.
  • the spiral moving mechanism 2 includes the first face plate 31 formed in a disk shape, the second face plate 32 formed in a disk shape, and the first face plate 31.
  • the first inlet 31a and the first outlet 31b provided, the second inlet 32a and the second outlet 32b provided in the second face plate 32, and the right connected from the first inlet 31a to the second outlet 32b
  • a spiral first path 41 and a counterclockwise spiral second path 42 connected from the second inlet 32a to the first outlet 31b are provided.
  • the spiral moving mechanism 2 rotates around the rotation axis that is disposed substantially horizontally through the centers of the first face plate 31 and the second face plate 32, the particles ( Solid particles) can be transported (circulated) in the phase direction.
  • first inlet 31a and the second inlet 32a are respectively disposed outside the first face plate 31 and the second face plate 32, and the first outlet 31b and the second outlet 32b. Are arranged inward of the first face plate 31 and the second face plate 32, respectively, so that the particles can be efficiently transported (circulated) in both directions.
  • the outer partition of the first path 41 is the inner partition of the second path 42, and the outer partition of the second path 42 is the inner partition of the first path 41.
  • the horizontal rotary furnace 1 of the present invention includes any one of the spiral moving mechanism 2 described above, the first chamber 51 connected to the first face plate 31 of the spiral moving mechanism 2, and a spiral shape.
  • a second chamber 52 connected to the second face plate 32 of the moving mechanism 2.
  • FIG. 13 shows a rotating gas-solid contact structure in which a hollow channel is spirally wound around a horizontal rotating shaft and installed on the vertical surface of the rotating shaft of the horizontal rotating cylinder.
  • this rotating gas-solid contact structure solid particles move from the inlet side to the outlet side by the rotation of the apparatus, and at this time, all the gas entering from the inlet side passes through the filled solid rolling space, and the solid particles in the space Contact with the entire surface of the device and discharge to the outside.
  • FIG. 14 shows a rotating gas-solid contact structure in which spiral tubes having opposite directions of winding are combined and installed in a horizontal rotating cylinder on a vertical surface with respect to a rotating shaft, and solid particles are introduced into the spiral tube (A) by the rotation of the device on the inlet side ( From the left side to the outlet side (right side) (black arrow), while in the spiral tube (B), solid particles move from the outlet side (right side) to the inlet side (left side) (hatched arrow).
  • the gas (white arrow) entered from the left side) flows into the two spiral tubes, passes through each packed solid rolling space, contacts the entire surface of the solid particles in the space, and is discharged out of the apparatus. .
  • FIG. 15 shows a drying apparatus 1 that uses superheated steam of water-containing solid particles by a rotating gas-solid contact structure composed of a pair of spiral spirals.
  • partition plates with a tilt guide plate (known solid circulation mechanism) 12 and 14 are provided before and after the drying apparatus 1.
  • the water-containing solid particles fed into the device by the screw feeder 11 pass through the solid spiral rolling space 13A of a normal spiral by the rotation of the device. At this time, the entire surface of the solid particles in the space is aligned with the high-temperature superheated steam. Heat is supplied by flow contact, moisture evaporates and drying proceeds.
  • the solid particle surfaces are similarly counter-contacted with the high-temperature superheated steam and supplied with heat to evaporate moisture and dry.
  • the solid particles are brought into contact with the solid particles having an upper limit of 100 degrees Celsius and supplied with heat, so that drying proceeds.
  • the dried solid particles are discharged from the outlet circular weir 15 to the outside of the device.
  • the high-temperature superheated steam fed from the center of the screw feeder 11 is solid in the filled solid rolling spaces 13A and 13B whose total amount is normal and reverse. Heat is supplied to the particles to form low-temperature superheated water vapor that is released outside the apparatus.
  • the low-temperature superheated steam is separated from the surplus and then heated by a heat exchange device (not shown) to be circulated and used as high-temperature superheated steam.
  • FIG. 16 shows another embodiment of the spiral moving mechanism 2A.
  • the spiral moving mechanism 2A includes a first face plate (31) formed in a disk shape and a first face plate (31) formed in a disk shape parallel to the first face plate (31).
  • the spiral moving mechanism 2A includes a counterclockwise spiral second path 42 connected from the first inlet 31a to the second outlet 32b, and a clockwise rotation connected from the second inlet 32a to the first outlet 31b.
  • the spiral first path 41 is provided.
  • at least one return member 60 is attached in the middle of the first path 41 and the second path 42.
  • the second path 42 enters from the first inlet 31a and turns counterclockwise. This is a route exiting from the second exit 32b.
  • the first path 41 enters from the second inlet 32a, winds in a clockwise direction, and then the first outlet 31b. It is a route to leave.
  • the first inlet 31a and the second inlet 32a are disposed outside the first face plate 31 and the second face plate 32, respectively, and the first outlet 31b and the second outlet 32b are respectively the first face plate 31 and the second face plate 32.
  • the face plate 31 and the second face plate 32 are disposed inward.
  • the partition wall outside the first path 41 is a partition wall inside the second path 42
  • the partition wall outside the second path 42 is a partition wall inside the first path 41.
  • Both the paths 41 and 42 have a function of rotating the horizontal rotary furnace 1 to transport the solid from the inlet toward the outlet and to bring the gas and the solid into contact with each other. That is, the gas and the solid are brought into contact with each other by filling the particles so as to block the cross sections of the paths 41 and 42.
  • the particle filling amount into the spiral moving mechanism 2A depends on the size of the inlet diameter and the inlet / outlet diameter ratio, the cross section is blocked at any position in the middle of the paths 41 and 42. It is necessary to adjust the size of the entrance diameter and the entrance / exit diameter ratio.
  • the return member 60 is disposed in the first path 41 and the second path 42, and is installed so as to extend from the inner partition toward the outer partition. More specifically, the return member 60 is formed to have substantially the same width as the partition wall, and is installed so as to protrude in the rotation direction from the inner partition wall toward the outer partition wall. Accordingly, the solid particles moving inside the first path 41 and the second path 42 are transported from the inlet toward the outlet while preventing the solid particles from slipping off due to the action of the return member 60. For this reason, compared with the case where there is no return member 60, the conveyance efficiency (movement speed) of a solid particle improves remarkably.
  • the spiral moving mechanism 2B of another form includes a first face plate 31, a second face plate 32, a first inlet 31a and a first outlet 31b, and a second inlet. 32a and a second outlet 32b.
  • intake channels 50 are respectively installed at the first inlet 31a and the second inlet 32a.
  • this mechanism can be combined with a plurality of mechanisms in a horizontal rotating cylinder or with a mechanism shown in a prior patent.
  • the rotating cylinder incorporating this mechanism is not limited to the horizontal type, and can be combined with movement using gravity due to inclination.
  • FIG. 18 shows a horizontal rotating cylinder 1A containing two spiral moving mechanisms (2-2, 2-1), which is generated by pyrolysis and pyrolysis of an organic substance by a solid heat medium heated by a high-temperature heating gas.
  • 1 shows an apparatus for performing steam reforming of tar steam.
  • Solid carbon and the low-temperature heat medium HL move to the low-temperature heat medium heating zone 3-2 by the gas-solid contact reforming vortex 2-2, and pass through the gas-blocking vortex 2-1 from the medium-temperature heat medium heating zone 3-3. It is heated by the high-temperature heat medium HH sent in.
  • the heated high-temperature heat medium HH becomes an intermediate-temperature heat medium HM, passes through the gas-blocking vortex 2-1, returns to the intermediate-temperature heat-medium heating zone 3-3, and is heated by the high-temperature heating gas HGH to become the high-temperature heat medium HH.
  • the high-temperature heating gas HGH to become the high-temperature heat medium HH.
  • Through 2-1 it reaches the low-temperature heat medium heating zone 3-2, and the excess solid residue W is discharged out of the apparatus through the rotary cylinder outlet.
  • the high-temperature heating gas HGH fed into the medium-temperature heating medium heating zone 3-3 supplies heat from the low-temperature heating medium heating zone 3-2 to the medium-temperature solid that has passed through the gas-blocking spiral 2-1 and becomes a medium-temperature heating gas. To be discharged.
  • the present invention is not limited to this. Can be made. That is, the spiral moving mechanism 2 of the present invention can be applied as long as the solid is configured to circulate and move between the two chambers and block the mixing of the gas between the two chambers.
  • the use of the apparatus of the present invention is not limited to the gasification reaction, and can be applied to various operations involving heat in and out such as drying and adsorption / desorption.
  • the target solid particles are not limited to biomass, and can be applied to all solid particulate materials including synthetic resins, metals, and inorganic substances.
  • the shape of the device of the present invention is not limited to that shown in the figure, and the shape of the inlet / outlet and the channel shape can be modified according to the target particles, operation, and conditions. Needs to be examined experimentally for each subject. Further, when a part or all of the heat medium particles are lost due to a reaction or the like in one chamber, the heat medium particles can be asymmetrical. Furthermore, in the illustrated example, the reciprocal flow path between the left and right chambers is 1: 1, but it is also possible to use a plurality of both flow paths or single flow paths, or to eliminate the single flow path and make it one-way. .

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Organic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)

Abstract

L'invention concerne un mécanisme de déplacement en forme de spirale qui est facile à créer et qui a une structure dans laquelle seules des particules circulent entre deux chambres de réaction et des gaz sont moins susceptibles de se mélanger ensemble ou une structure à travers laquelle un gaz passe tout en entrant en contact avec des particules solides à une densité élevée. Le mécanisme est pourvu d'une première plaque de surface présentant une forme de type disque, d'une seconde plaque de surface présentant une forme de type disque, d'une première entrée et d'une première sortie disposées sur la première plaque de surface, d'une seconde entrée et d'une seconde sortie disposées sur la seconde plaque de surface, d'une première voie ayant une forme de spirale dans le sens des aiguilles d'une montre qui se raccorde de la première entrée à la seconde sortie et d'une seconde voie ayant une forme en spirale dans le sens inverse des aiguilles d'une montre qui se raccorde de la seconde entrée à la première sortie.
PCT/JP2018/001384 2017-01-23 2018-01-18 Mécanisme de déplacement en forme de spirale, et four rotatif horizontal équipé d'un mécanisme de déplacement en forme de spirale Ceased WO2018135583A1 (fr)

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JP2018562430A JP6973803B2 (ja) 2017-01-23 2018-01-18 渦巻き状移動機構、及び、渦巻き状移動機構を備える水平回転炉

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112096080A (zh) * 2020-09-12 2020-12-18 徐州易尚饰家装饰工程有限责任公司 一种建筑施工混凝土灌注用串筒结构

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5760174A (en) * 1980-09-29 1982-04-10 Hashimoto Kasei Kogyo Kk Heating rotary furnace
JPS5918172U (ja) * 1982-07-22 1984-02-03 高砂熱学工業株式会社 スパイラル型熱交換器
JPH05509388A (ja) * 1990-06-05 1993-12-22 ノース　ロジャー　ドリアン 乾燥装置及び方法
JP2000304474A (ja) * 1999-04-16 2000-11-02 Kankyo Co Ltd 熱交換器、その製造方法及びそれを含む除湿機
JP2003510547A (ja) * 1999-09-20 2003-03-18 アルファ ラヴァル アクチボラゲット スパイラル式熱交換器
JP2006316143A (ja) * 2005-05-11 2006-11-24 Chisaki:Kk 粉粒体のガス化装置
JP2007240031A (ja) * 2006-03-06 2007-09-20 Mettsu Corporation:Kk 加熱処理装置
JP3159451U (ja) * 2010-03-02 2010-05-20 奇▲こう▼科技股▲ふん▼有限公司 螺旋型熱交換器
JP2012021067A (ja) * 2010-07-13 2012-02-02 Hatta Kankyo Gijutsu Jimusho:Kk 熱分解装置
JP2014163609A (ja) * 2013-02-26 2014-09-08 Chisaki:Kk 可燃含水原料加熱処理装置
WO2015132920A1 (fr) * 2014-03-05 2015-09-11 中国電力株式会社 Échangeur de chaleur et procédé de fabrication d'échangeur de chaleur

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5760174A (en) * 1980-09-29 1982-04-10 Hashimoto Kasei Kogyo Kk Heating rotary furnace
JPS5918172U (ja) * 1982-07-22 1984-02-03 高砂熱学工業株式会社 スパイラル型熱交換器
JPH05509388A (ja) * 1990-06-05 1993-12-22 ノース　ロジャー　ドリアン 乾燥装置及び方法
JP2000304474A (ja) * 1999-04-16 2000-11-02 Kankyo Co Ltd 熱交換器、その製造方法及びそれを含む除湿機
JP2003510547A (ja) * 1999-09-20 2003-03-18 アルファ ラヴァル アクチボラゲット スパイラル式熱交換器
JP2006316143A (ja) * 2005-05-11 2006-11-24 Chisaki:Kk 粉粒体のガス化装置
JP2007240031A (ja) * 2006-03-06 2007-09-20 Mettsu Corporation:Kk 加熱処理装置
JP3159451U (ja) * 2010-03-02 2010-05-20 奇▲こう▼科技股▲ふん▼有限公司 螺旋型熱交換器
JP2012021067A (ja) * 2010-07-13 2012-02-02 Hatta Kankyo Gijutsu Jimusho:Kk 熱分解装置
JP2014163609A (ja) * 2013-02-26 2014-09-08 Chisaki:Kk 可燃含水原料加熱処理装置
WO2015132920A1 (fr) * 2014-03-05 2015-09-11 中国電力株式会社 Échangeur de chaleur et procédé de fabrication d'échangeur de chaleur

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112096080A (zh) * 2020-09-12 2020-12-18 徐州易尚饰家装饰工程有限责任公司 一种建筑施工混凝土灌注用串筒结构

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