JP2009007490A - Oil recovery equipment and method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide oil recovery equipment 1 in which oxygen in a thermal decomposition tank 14 is eliminated by a simple method at a low cost and an oil recovery method. <P>SOLUTION: The oil recovery equipment 1 is provided with an oil recovery object charging part 11 allowing to charge an oil recovery object, the thermal decomposition tank 14 having a steam discharge passage 12 for discharging steam (a) or oil components (b) and for recovering oil from charged waste oil or waste by decomposition and a heating apparatus 15 for heating the thermal decomposition tank 14. The thermal decomposition tank 14 is provided with a water supply apparatus 13 allowing to charge water A having lower boiling point than the oil component (b) of the oil recovery object B and noninflammable to evaporated gas. The oil recovery method includes: a step S3 for heating the tank 14 in a state that the oil recovery object B and the water A are charged into the thermal decomposition tank 14 to evaporate the water A first; a step S4 for evaporating the oil component (b) of the oil recovery object B after steam (a) is filled in the thermal decomposition tank 14; and a step S6 for charging the water A to evaporate again after the oil component (b) is sufficiently evaporated. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an oil making apparatus and an oil making method for obtaining an oil component from, for example, used waste oil or waste.

  Conventionally, a waste oil regeneration processing device has been proposed as a method for obtaining an oil component from used waste oil (see Patent Document 1). This waste oil regeneration treatment apparatus removes impurities from waste oil by using centrifugal separation, heats the waste oil from which these impurities have been removed, further evaporates and removes impurities mixed in the waste oil, and obtains recycled heavy oil by distillation. .

Here, when reclaiming heavy oil from waste oil, if there is oxygen around the waste oil or waste, there is a risk of ignition and explosion for some reason. For this reason, there is a problem that explosion must be prevented by a method such as eliminating oxygen in the tank for evaporating the oil component.
JP 2003-306682 A

  An object of this invention is to provide the oil-ized apparatus and oil-ized method which can exclude the oxygen in a tank by a simple method at low cost in view of the above-mentioned problem.

  The present invention includes an oilification target input unit that allows input of an oilification target and a gas discharge unit that discharges gas, and an oilification tank that oils an oilification target that has been input, and heating the oilification tank And an oiling device provided with a liquid charging unit that allows the injection of a nonflammable liquid that has a boiling point lower than that of the oil component to be oiled and has no flammability to the evaporated gas. It is characterized by.

  As an aspect of the present invention, the oil converting apparatus is configured to first evaporate the ignition preventing liquid by heating the oil converting tank with heating means in a state where the object to be oiled and the ignition preventing liquid are put in the oil converting tank. 1 liquid evaporating step, an oil component evaporating step for evaporating the oil component to be liquefied by heating of the heating means after the vapor of the flamming prevention liquid is filled in the oil making tank, and the oil component is sufficiently evaporated A second liquid evaporation step of evaporating the anti-flammability liquid that is re-introduced later can be executed.

  According to the present invention, it is possible to provide an oil making apparatus and an oil making method capable of removing oxygen in a tank at a low cost by a simple method.

An embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 shows a configuration diagram of the oil making apparatus 1, and FIG. 2 shows a block diagram of the oil making apparatus 1.
As shown in FIG. 1, the oil making apparatus 1 includes an oil making tank 10, a heating device 15 for heating the oil making tank 10, a chlorine removing device 21 at the latter stage of the oil making tank 10, and a cooling at the latter stage of the chlorine removing apparatus 21. The apparatus 23, the oil / water separator 25 at the rear stage of the cooling apparatus 23, the oil tank 33 at the rear stage of the oil / water separator 25, and the crushing apparatus 31 at the rear stage of the oilification tank 10 are provided. Further, as shown in FIG. 2, the oil converting apparatus 1 is also provided with a temperature sensor 17, an operation unit 18, and a control device 20.

  The oilification tank 10 is composed of a pyrolysis tank 14 that thermally decomposes the oilification object B in a sealed state. Here, B to be liquefied is thermoplastic resin, FRP (Fiber Reinforced Plastics), waste plastic, electric wires, waste tires, expired convenience store lunches (lunch boxes containing food in plastic containers sold at convenience stores, etc.) ), Construction waste (wood scrap, metal scrap, wire scrap, glass, pottery, etc.), uniforms, etc., waste oil, etc. it can.

  In the upper part of the pyrolysis tank 14, there are individually an oilification target input unit 11 that allows the input of oily target B such as waste oil and waste, and a steam discharge path 12 that discharges steam containing oil components. Is provided. Further, a water supply device 13 for supplying water into the pyrolysis tank 14 is provided on the side of the pyrolysis tank 14.

  The water supply device 13 supplies water to the pyrolysis tank 14 in accordance with a control signal from the control device 20. This water is supplied so as to float on the upper surface of the waste oil or waste put into the thermal decomposition tank 14.

  The thermal decomposition tank 14 evaporates oil components by heating waste oil and waste charged therein in a sealed state. It is preferable that the pyrolysis tank 14 stirs the input waste oil and waste with an appropriate stirring means. Thereby, it is possible to prevent waste oil from sticking to the surface of the pyrolysis tank 14 in particular.

  The heating device 15 heats the pyrolysis tank 14 to an appropriate temperature in accordance with a control signal from the control device 20. The appropriate temperature can be an oiling temperature for oiling and a water evaporation temperature for evaporating water, and can be arbitrarily set by the user.

The temperature sensor 17 detects the temperature of the pyrolysis tank 14 and transmits it to the control device 20.
The operation unit 18 receives user operation inputs such as operation start, operation stop, and mode change, and transmits the input signal to the control device 20. The modes that can be changed include automatic mode, manual mode, A heavy oil extraction mode (extracting A heavy oil by heating to about 400 ° C to 450 ° C), C heavy oil extraction mode (heating to about 600 ° C to remove C heavy oil Extraction), light oil extraction mode (extracts light oil by heating to about 200 ° C.), sterilization mode (sterilizes by heating to about 800 ° C. or higher), and the like. Moreover, after executing A heavy oil extraction mode, C heavy oil extraction mode, or light oil extraction mode, the composite mode which performs sterilization mode continuously is also included.

  The control device 20 receives temperature information from the temperature sensor 17 and input information from the operation unit 18, and receives a water supply device 13, a heating device 15, a chlorine removal device 21, a cooling device 23, an oil / water separation device 25, and a crushing device 31. And the operation of the oil tank 33 is controlled.

  The chlorine removing device 21 is a device that removes chlorine from the steam flowing from the thermal decomposition tank 14 via the steam discharge path 12. The chlorine removing device 21 can be constituted by, for example, a reaction device and a neutralization device. In this case, the reactor may be desulfurized by reacting the flowing steam with a desulfurization catalyst (pure iron, iron oxide, zinc, nickel, or the like). Moreover, the neutralization apparatus is good to neutralize the substance after reacting with the reaction apparatus with lime or calcium carbonate. This can neutralize chlorine and the like to prevent hydrochloric acid from being generated.

The cooling device 23 cools the flowing vapor and condenses it.
The oil / water separator 25 separates the condensed liquid into oil and water.
The crushing device 31 crushes the residue remaining in the pyrolysis tank 14.
The oil tank 33 stores the oil separated by the oil / water separator 25.

  FIG. 3 is a flowchart showing an operation performed by the control device 20 of the oil-generating apparatus 1. FIGS. 4 and 5 are explanatory diagrams showing the state of the oil-generating tank 10 in each step. Here, the A heavy oil extraction mode will be described as an example.

  First, the control device 20 allows the oil decomposition target such as waste oil or waste to be input into the thermal decomposition tank 14, and omits the oil conversion target being input and the oil conversion target input unit 11 being closed. It waits until it detects with the detection means to perform (step S1). At this time, as shown in FIG. 4 (A), the pyrolysis tank 14 is in a state where the object to be liquefied B is introduced. The water supply device 13 stands by in a state filled with water.

  When the liquefaction target charging unit 11 is closed, the control device 20 inputs a predetermined amount of water from the water supply device 13 into the thermal decomposition tank 14 as shown in FIG. Step S2). The predetermined amount of water to be added at this time is set to an amount necessary for filling the pyrolysis tank 14 with water vapor when the water is heated and evaporated, or more.

  The control device 20 heats the pyrolysis tank 14 with the heating device 15 (step S3). When the temperature in the thermal decomposition tank 14 rises due to this heating, water A having a low boiling point (boiling point: about 100 ° C.) is first evaporated as shown in FIG. Then, the thermal decomposition tank 14 is filled with water vapor a, and oxygen is discharged from the vapor discharge path 12 to the subsequent stage.

  The control device 20 further heats the pyrolysis tank 14 with the heating device 15 (step S4). As a result, when the temperature in the pyrolysis tank 14 further rises and rises to the evaporation temperature of the oil component (for example, 400 ° C. to 450 ° C.), as shown in FIG. Begins to evaporate and is discharged from the steam discharge path 12 toward the subsequent stage.

  The control device 20 continues the heating until the oil component is sufficiently extracted from the object to be oiled and cannot be extracted any more (step S5: No). At this time, it is preferable to replenish water in the water supply device 13 and prepare it next.

  When the oil formation is completed (step S5: Yes), the control device 20 lowers the temperature to some extent (about the boiling point temperature of water) and refills the pyrolysis tank 14 again as shown in FIG. 5 (E). To do.

When the predetermined time has elapsed, the control device 20 supplies water again so that the inside of the pyrolysis tank 14 is filled with water vapor (step S6). At this time, the temperature of the pyrolysis tank 14 may be left as it is, but may be lowered to a temperature at which water evaporates.
The control device 20 waits in this state until a predetermined time elapses (step S7: No), fills the pyrolysis tank 14 with water vapor a as shown in FIG. The component b is discharged from the steam discharge path 12 to the subsequent stage.

  When the predetermined time has elapsed (step S7: Yes), the control device 20 stops the heating by the heating device 15 (step S8) and ends the process.

  Oxygen in the pyrolysis tank 14 can be eliminated by the simple and low-cost method in which water is added before oil component extraction by the oil converting apparatus 1 described above. Therefore, the danger of explosion can be avoided.

  Further, since water is introduced and evaporated after the oil component is extracted, the oil component b remaining in the thermal decomposition tank 14 can be completely discharged from the steam discharge path 12 to the subsequent stage. Thereby, the oil component b can be extracted to the maximum extent.

  Moreover, by managing operation | movement by control of the control apparatus 20, the oil-ized apparatus 1 can be operated stably and a user's convenience can be improved.

  Further, even if the oil-conversion object B that has been introduced has a small content of oil component, the steam A from which the water A has evaporated can expel oxygen in the pyrolysis tank 14 and reliably prevent explosion.

  In addition, in this way, it is possible to obtain a regenerated oil (A heavy oil in this embodiment) obtained by thermally decomposing waste oil by the oil converting apparatus 1 and effectively utilizing the waste oil.

  The water supply from the water supply device 13 to the thermal decomposition tank 14 is automatically performed under the control of the control device 20, but may be appropriately performed manually. In this case as well, the risk of explosion can be avoided.

  Alternatively, the inside of the thermal decomposition tank 14 may be pressurized and heated to a higher temperature such as 1000 ° C. by heating with the heating device 15. In this case, for example, waste generated in a medical facility such as a hospital can be sterilized, and convenience is improved.

In correspondence between the configuration of the present invention and the above-described embodiment,
The gas discharge part of this invention corresponds to the steam discharge path 12 of the embodiment,
Similarly,
The liquid charging unit corresponds to the water supply device 13,
The heating means corresponds to the heating device 15,
The control means corresponds to the control device 20,
The gas corresponds to water vapor a and oil component b,
The first liquid evaporation step corresponds to step S3,
The oil component evaporation process corresponds to step S4,
The second liquid evaporation step corresponds to step S6,
The target for liquefaction corresponds to waste oil and waste,
The anti-flammable liquid is compatible with water,
The present invention is not limited only to the configuration of the above-described embodiment, and many embodiments can be obtained.

The block diagram of an oil-ized apparatus. The block diagram of an oil-ized apparatus. The flowchart which shows the operation | movement which the control apparatus of an oil-ized apparatus performs. Explanatory drawing which shows the mode of the oilification tank in each process. Explanatory drawing which shows the mode of the oilification tank in each process.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Oilification apparatus 10 ... Oilification tank, 11 ... Oilification object input part, 12 ... Steam discharge path, 13 ... Water supply apparatus, 15 ... Heating apparatus, 20 ... Control apparatus, a ... Water vapor, b ... Oil component

Claims (4)

An oilification tank that oilizes the oiled object that has been charged with an oily object charging part that allows the oily object to be charged and a gas discharge part that discharges the gas;
Heating means for heating the oilification tank,
An oil making apparatus in which the oil making tank is provided with a liquid throwing portion that allows a fire prevention liquid that has a boiling point lower than that of the oil component to be oiled and has no flammability to the evaporated gas. A first liquid evaporation step of evaporating the flaming prevention liquid by heating the liquefaction tank by the heating means in a state where the liquefaction target and the flammability prevention liquid are put in the oilification tank;
An oil component evaporation step of evaporating the oil component to be liquefied by heating of the heating means after the vapor from the anti-flammable liquid is filled in the oil conversion tank;
2. The oil making apparatus according to claim 1, further comprising: a control unit that executes a second liquid evaporation step of evaporating the anti-flammable liquid that has been supplied again after the oil component has sufficiently evaporated. The oil making apparatus according to claim 1 or 2, wherein the ignition prevention liquid is made of water. A first liquid evaporation step in which the liquefaction tank is heated by the heating means in a state where the liquefaction target and the flammability prevention liquid are put in the liquefaction tank, and the flammability prevention liquid is first evaporated;
An oil component evaporation step of evaporating the oil component to be liquefied by heating of the heating means after the vapor from the anti-flammable liquid is filled in the oil conversion tank;
And a second liquid evaporation step of evaporating the anti-flammable liquid that has been input again after the oil component has sufficiently evaporated.

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