KR102014452B1 - System for upgrading coal quality - Google Patents

Abstract

A system for upgrading coal quality according to an embodiment of the present invention comprises: a drying device for drying moisture of coal; a pyrolysis device for pyrolyzing the coal discharged from the drying device; and a polymer membrane device for making the air supplied to the pyrolysis device into a low oxygen state.

Description

Coal High Quality System {SYSTEM FOR UPGRADING COAL QUALITY}

The present invention relates to a coal high quality system, and more particularly to a coal high quality system for drying and pyrolysis coal.

Anthracite, which has a degree of coalification of about 90% and bituminous coal, which has a degree of coalification of about 75% of coal, currently accounts for most of the use. On the contrary, brown coal and lignite have a lot of resources but are immature (less than 70% of carbonation), so they have a lot of moisture, low calorific value, and ignition temperature is about 250 ℃.

Water contained in a large quantity of lower coal is evaporated during the combustion process, causing an endothermic reaction that absorbs heat. In this process, some of the heat generated per unit weight of coal is consumed, thereby reducing the calorific value of coal. In addition, volatile constituents in coal are causing air pollution.

The problem to be solved by the present invention is to provide a system for high-quality coal by drying coal and removing volatile components.

Coal high-definition system according to an embodiment of the present invention is a drying device for drying the moisture of the coal, a pyrolysis device for pyrolyzing the coal discharged from the drying device and a polymer membrane device for making the air supplied to the pyrolysis device in a low oxygen state It includes.

Coal high-definition system according to an embodiment of the present invention may further include a heater for heating the air in a low oxygen state discharged from the polymer membrane device.

The polymer membrane device according to an embodiment of the present invention is an air inlet through which air is introduced, a polymer separator that separates oxygen from air components supplied from the air inlet, and an air outlet for supplying air in the low oxygen state to the heater. It may include.

In the coal refinement system according to an embodiment of the present invention, the polymer separation membrane may include a cellulose acetate membrane.

The drying apparatus according to an embodiment of the present invention is a drying device inlet for supplying coal, a pulverizer for crushing the coal supplied to the drying device inlet, a dryer for drying the coal discharged from the crusher and to discharge the coal from the dryer Dryer outlet may be included.

The drying apparatus according to an embodiment of the present invention is a screw for moving the coal discharged from the grinder to the dryer, a cyclone to collect the pulverized coal discharged from the dryer, a cooler for separating the gas passing through the cyclone and the It may further include a reservoir for storing the liquid separated from the cooler.

The dryer according to an embodiment of the present invention is a dryer main body, a baffle plate coupled to the dryer body to hinder the dropping of coal, a heat source for supplying heat to the dryer body, and the heat supplied to the dryer body in combination with the dryer body. It may include a thermal insulation to reduce the loss.

The heat source according to the embodiment of the present invention may use an electric furnace.

Coal high-definition system according to an embodiment of the present invention may further include a conveyor belt for delivering the coal discharged from the drying device to the pyrolysis device.

The pyrolysis device according to an embodiment of the present invention is a pyrolysis device input unit receiving the coal dried in the drying device, a pyrolysis body for pyrolyzing coal supplied from the pyrolysis device input unit, a combustion chamber indirectly heating the pyrolysis body, A pyrolysis chamber which transfers heat generated from the combustion chamber to the pyrolysis body, a pyrolysis screw rotating in the pyrolysis body, a pyrolysis device discharge unit receiving high-quality coal from the pyrolysis body, to discharge the gas generated in the pyrolysis body It may include a gas discharge pipe, a cooling condensation device connected to the gas discharge pipe to separate the gas and a liquid reservoir connected to the cooling condensation device to store the separated liquid.

The combustion chamber according to an embodiment of the present invention may include a plurality of combustion chambers whose temperature rises as coal moves.

According to an embodiment of the present invention, the plurality of combustion chambers may include a first combustion chamber supplying heat of 350 to 450 ° C., a second combustion chamber supplying heat of 650 to 750 ° C., and a third combustion chamber supplying heat of 1000 to 1200 ° C. It may include.

The pyrolysis body according to the embodiment of the present invention may be inclined so that its height is gradually lowered.

The pyrolysis device input unit according to an embodiment of the present invention, a first input unit receiving the coal dried in the drying apparatus, a second input unit connected to the first input unit, the first input unit and the second input unit It may include a vacuum pump connected to the first gate and the second input for controlling the fall of the coal between the atmosphere to create a low oxygen atmosphere.

The first gate according to an embodiment of the present invention may be opened and closed in a vertical direction by rotating.

According to an embodiment of the present invention, the first gate may include a first sealing portion coupled to an end of the first upper gate and the first upper gate, a second sealing coupled to an end of the second upper gate and the second upper gate. Including a portion, the first upper gate and the second upper gate may overlap each other in a closed state.

The pyrolysis apparatus discharge unit according to an embodiment of the present invention, the first discharge unit for receiving the pyrolyzed coal from the pyrolysis body, a second discharge unit connected to the first discharge unit, between the pyrolysis body and the first discharge unit It may include a third gate for controlling the fall of the coal and a second vacuum pump connected to the first outlet to create a low oxygen atmosphere.

The third gate according to the embodiment of the present invention may be opened and closed in a vertical direction by rotating.

According to an embodiment of the present invention, the third gate may include a fifth sealing portion coupled to an end of the third upper gate and the third upper gate, a sixth sealing coupled to an end of the fourth upper gate and the fourth upper gate. The third upper gate and the fourth upper gate may overlap each other in a closed state.

Coal high-grade system according to an embodiment of the present invention can high-quality coal through drying and pyrolysis of low-grade coal. In the coal decentralization system, the polymer membrane device may provide low-oxygen air to the pyrolysis body in order to prevent combustion of the coal or explosion of the gas by reaction of gas and oxygen generated by coal pyrolysis. On the other hand, it is possible to prevent the combustion of coal or the explosion of gas by creating a low oxygen state or a vacuum state immediately before or immediately after being introduced into the pyrolysis apparatus.

1 is a conceptual diagram of a coal decentralization system according to an embodiment of the present invention.
2 is a view for explaining a drying apparatus according to an embodiment of the present invention.
3 is a view for explaining a grinder of the drying apparatus according to an embodiment of the present invention.
4 is a view for explaining a polymer membrane device according to an embodiment of the present invention.
5 is a view for explaining a pyrolysis device according to an embodiment of the present invention.
6 and 7 are views for explaining a pyrolysis device input unit according to an embodiment of the present invention.
8 and 9 are views for explaining a pyrolysis device discharge unit according to an embodiment of the present invention.
FIG. 10 is a cross-sectional view taken along the line II ′ of FIG. 5 to describe a pyrolysis screw according to an embodiment of the present invention.
FIG. 11 is an enlarged view of a portion A of FIG. 5 to describe a pyrolysis screw according to an exemplary embodiment of the present invention.
12 is a conceptual diagram illustrating a cooling condensation process according to an embodiment of the present invention.

1 is a conceptual diagram of a coal decentralization system according to embodiments of the present invention. Referring to FIG. 1, the coal decentralization system includes a drying apparatus 100 for drying moisture of coal, a pyrolysis apparatus 300 for pyrolyzing coal discharged from the drying apparatus, and air supplied to the pyrolysis apparatus in a low oxygen state. It comprises a polymer membrane device 200 to make.

2 is a view for explaining a drying apparatus 100 according to embodiments of the present invention. 3 is a view for explaining the grinder 20 of the drying apparatus 100. 1 to 3, the drying apparatus 100 includes a drying apparatus inlet 10 for supplying coal, a pulverizer 20 for pulverizing coal supplied to the drying apparatus inlet 10, and the pulverizer 20. It may include a dryer 30 for drying the discharged coal and a drying device outlet 40 for discharging coal from the dryer 30. The grinder 20 may include a grinding wheel 20a in the form of a cog wheel and a first motor 23 for transmitting rotational force. The grinding wheel 20a may be configured as a pair rotating in opposite directions to each other. The grinding wheel 20a may crush coal to a size of 1 to 3 cm 3. The size of coal in the grinder 20 is reduced, so that drying efficiency of coal in the drying apparatus 100 may be improved.

The drying apparatus 100 includes a screw 25 for moving the coal discharged from the grinder 20 to the dryer 30, a cyclone 50 for collecting the pulverized coal discharged from the dryer 30, and the cyclone. It may further include a cooler (60) for separating the gas passing through the 50 and the reservoirs (70a, 70b) for storing the liquid separated from the cooler (60). The screw 25 may be connected to a second motor 27 that transmits rotational force. The screw 25 may move the coal discharged from the grinder 20 in the horizontal direction by the rotational movement.

The dryer 30 is coupled to a dryer body 32, the dryer body 32, a baffle plate 35 to hinder the fall of coal, a heat source 37 for supplying heat to the dryer body 32 and the The heat insulating part 39 may be coupled to the dryer body 32 to reduce heat loss supplied from the heat source 37. The dryer body 32 may have a columnar structure to secure a long residence time of coal. Preferably, the dryer body 32 may have a square pillar structure. The dryer main body 32 may be adjusted in height and width in consideration of particle size, content, throughput, time, etc. of coal input.

The baffle plate 35 may be arranged in a zigzag form with a downward gradient coupled to the inside of the dryer body 32. The baffle plate 35 disposed on one side of the wall surface of the dryer body 32 may be installed at a position higher or lower than the baffle plate 35 disposed on the other side of the wall surface of the dryer body 32. The baffle plate 35 may be adjusted in number according to the residence time of coal, coal throughput, and the temperature of the heat source 37. The baffle plate 35 may provide a path for coal to fall zigzag to increase drying time or residence time. The obstruction plate 35 may have an inclination angle of 15 to 40 degrees. The inclination angle of the baffle plate 35 may be adjusted to optimize the falling speed and drying time of the coal. The baffle plate 35 may be a metal having high thermal conductivity, and the coal falling may have improved drying efficiency due to a thermal conductivity phenomenon. The baffle plate 35 may be made of a material that is not oxidized by moisture or high temperature or may be coated.

The heat source 37 supplies heat to the dryer body 32. The heat source 37 may be an electric furnace. The heat source 37 may supply heat to generate steam and carbon dioxide. The heat source 37 may maintain a temperature inside the dryer body 32 at about 150 ° C. The heat insulating part 39 may be installed on the inner wall surface of the dryer body 32. The heat insulating part 39 may serve to prevent loss of heat supplied from the heat source 37.

Water vapor, carbon dioxide, and pulverized coal powder generated in the dryer 30 may move to the cyclone 50. The cyclone 50 may be connected to the dryer 30 by a cyclone inlet 52. The cyclone 50 may collect the pulverized coal powder using a filter. The cyclone 50 may be connected to the cooler 60 by the cyclone outlet 54. Carbon dioxide and water vapor discharged through the cyclone 50 may be supplied to the cooler 60. The cooler 60 may separate carbon dioxide and water vapor by using a difference in cooling point, and the carbon dioxide and water vapor may be converted into a liquid state and stored in separate spaces of the reservoirs 70a and 70b.

The drying apparatus 100 may efficiently dry coal by the grinder 20 and the dryer 30. For example, lignite has a high moisture content of 35% or more and is known to have a very low calorific value of 4,200 kcal / kg or less. This low-grade coal absorbs heat as the moisture contained in the coal vaporizes during combustion, thereby reducing the calorific value. The drying apparatus 100 according to an embodiment of the present invention can efficiently dry low-grade coal, thereby sufficiently removing the moisture of the coal. This increases the thermal efficiency of the power plant and at the same time reduces the use of coal and reduces greenhouse gas emissions from combustion.

4 is a view for explaining a polymer membrane device according to an embodiment of the present invention. 1 and 4, the coal discharged from the drying apparatus 100 may move to the pyrolysis apparatus 300 by the conveyor belt 150. The polymer membrane device 200 makes the air supplied to the pyrolysis device 300 in a low oxygen state. The polymer membrane device 200 may provide air in a low oxygen state to the pyrolysis apparatus 300 in order to prevent combustion of coal or explosion of gas by reaction of gas and oxygen generated by coal pyrolysis. A heater 250 for heating the low oxygen air discharged from the polymer membrane device 200 may be provided. The heater 250 may be interpreted as a heat source of the pyrolysis apparatus 300 by supplying high temperature low oxygen air to the pyrolysis apparatus 300.

The polymer membrane device 200 is an air inlet 210 through which air is introduced, a polymer separator 220 for separating oxygen from the air components supplied from the air inlet 210 and the low oxygen air in the heater ( It may include an air outlet 230 for supplying 250.

The polymer separation membrane 220 is generally non-porous, and gas separation through the membrane may separate specific molecules through a difference in membrane permeation rate of gas molecules. The polymer separator 220 may be any one of an aromatic polymer, polysulfone, cellulose acetate, polycarbonate, polyimide, perfluoropolymer, and siloxane polymer. The polymer separation membrane 220 according to an embodiment of the present invention may be a cellulose acetate membrane. The polymer separation membrane 220 may provide a stage in which oxygen is absorbed, diffused, or desorbed, thereby providing air in a low oxygen state.

5 is a view for explaining a pyrolysis apparatus according to embodiments of the present invention. 6 and 7 are views for explaining a pyrolysis device input unit according to an embodiment of the present invention. 8 and 9 are views for explaining a pyrolysis device discharge unit according to an embodiment of the present invention. FIG. 10 is a cross-sectional view taken along the line II ′ of FIG. 5 to explain the pyrolysis screw. FIG. 11 is an enlarged view of a portion A of FIG. 5 to explain the pyrolysis screw. 12 is a conceptual diagram illustrating a cooling condensation process according to an embodiment of the present invention.

Here, 'pyrolysis' refers to a physical and chemical decomposition process of an organic material in which coal is heated under oxygen-excluded conditions and combustion reactions do not occur, and various kinds of gases or liquids are released to leave residues. Pyrolysis rates and products may vary depending on organic components and process conditions.

1 and 5 to 12, the pyrolysis apparatus 300 according to an embodiment of the present invention is a pyrolysis apparatus input unit 310, the pyrolysis apparatus input unit receiving the coal dried in the drying apparatus 100 A pyrolysis body 320 for pyrolyzing coal supplied from 310, a combustion chamber 330 for indirectly heating the pyrolysis body 320, and a pyrolysis chamber for transferring heat generated from the combustion chamber 330 to the pyrolysis body ( 340, a pyrolysis screw 350 rotating in the pyrolysis body 320, a gas discharge pipe 360 for discharging the gas generated in the pyrolysis body 320, and connected to the gas discharge pipe 360 to separate the gas. And a liquid reservoir 380 connected to the cooling condenser 370 and storing the separated liquid.

The pyrolysis apparatus input unit 310 may include a first input unit 312 receiving the coal dried by the drying apparatus 100, a second input unit 314 connected to the first input unit 312, and the first input unit 312. A first vacuum pump connected to the first gate 313 and the second input unit 314 for controlling the drop of coal between the first input unit 312 and the second input unit 314 to create a low oxygen atmosphere. 316 and a second gate 317 installed at a lower end of the second input unit 314.

Coal dried in the drying apparatus 100 may pass through the first input unit 312 and may be accumulated in the second input unit 314. When a predetermined amount of coal is accumulated in the second input unit 314, the first gate 313 is closed and the first vacuum pump 316 is operated so that the second input unit 314 is in a low oxygen state or a vacuum state. Can be Coal in the second input unit 314 in a low oxygen state or a vacuum state may be introduced into the pyrolysis body 320 while the second gate 317 is opened. When the coal in the second input unit 314 is completely injected into the pyrolysis body 320, the same operation may be repeated while the first gate 313 is opened while the second gate 317 is closed. have.

5 and 6, the first gate 313 is partially overlapped with the first upper gate 313b and the first upper gate 313b coupled to the first sealing part 313a at an end thereof. An end portion may include a second upper gate 313d coupled to the second sealing portion 313c. The first upper gate 313b and the second upper gate 313d may be rotated to be opened and closed in a vertical direction to prevent wear and heat generation due to friction. Since the first sealing part 313a and the second sealing part 313c have adhesion, the second input part 314 may help to reach a low oxygen state or a vacuum state.

5 and 7, the second gate 317 is partially overlapped with the first lower gate 317b and the first lower gate 317b coupled to the third sealing part 317a at an end thereof. An end portion may include a second lower gate 317d coupled to the fourth sealing portion 317c. The first lower gate 317b and the second lower gate 317d may be rotated to open and close in a vertical direction to prevent abrasion and heat generation due to friction. Since the third sealing part 317a and the fourth sealing part 317c have adhesion, the second input part 314 may help to reach a low oxygen state or a vacuum state. The second input unit 314 reaches a low oxygen state or a vacuum state immediately before the coal is injected into the pyrolysis body 320 to prevent combustion of the coal or explosion of the gas by reaction of gas and oxygen by coal pyrolysis. Can be.

The coal injected into the pyrolysis body 320 may move by the pyrolysis screw 350. The pyrolysis screw 350 may rotate by the third motor 352. Screw blades 355 coupled to the pyrolysis screw 350 may be provided. The screw blade 355 may be a metal having high thermal conductivity. The screw blade 355 may conduct heat by contacting the coal while moving the coal. The screw blades 355 may improve the uniformity of coal pyrolysis. The pyrolysis body 320 may be installed to be inclined so that the height is gradually lowered according to the moving direction of the coal. The pyrolysis body 320 may be indirectly heated by the combustion chamber 330. The combustion chamber 330 may include a plurality of combustion chambers whose temperature increases along the moving direction of coal by the pyrolysis screw 350. The combustion chamber 330 may determine the number according to the type, size or dry state of the coal and the pyrolysis rate or the product.

According to an embodiment of the present invention, the plurality of combustion chambers 330 may include a first combustion chamber 330a for supplying heat of 350 to 450 ° C., a second combustion chamber 330b for supplying heat of 650 to 750 ° C, and 1000 to 1000 ° C. It may include a third combustion chamber (330c) for supplying heat of 1200 ℃. The low temperature pyrolysis of coal occurs by the first combustion chamber 330a, the temperature of coal may be increased by the second combustion chamber 330b, and the high temperature pyrolysis of coal may be performed by the third combustion chamber 330c.

The pyrolysis apparatus 300 may convert dried coal into coke, tar, and gas. In the pyrolysis apparatus 300, when the coal is heated to 400 ~ 500 ℃ a soft layer (plastic layer) is generated, the soft layer is close to the liquefied state, the permeability is significantly low, the generated gas may not be permeable. When the coal in which the softening layer is formed is further heated, the softening layer may solidify and change into a semi-coke state. Semi-coke can turn into porous coke as the gas escapes when heated above 1000 ° C.

For example, a low temperature pyrolysis process may occur in the first combustion chamber 330a. The low temperature pyrolysis process converts the dried coal into coal produced by the softening layer, converts the coal produced by the softened layer into semi-coke, primary tar and first gas, and converts semi-coke into coke and second gas. It can be interpreted as a step. The high temperature pyrolysis process may occur in the third combustion chamber 330c. The high temperature pyrolysis process may be interpreted as a step of converting the primary tar, the first gas, and the second gas into the secondary tar and the third gas. The first, second and third gases may be represented by various gases depending on the type of coal or the pyrolysis process, and should not be limited to mean one component each.

The low temperature pyrolysis process may refer to a phenomenon in which the density of aliphatic and aromatic compounds changes as bond breaking, vaporization, gas condensation, or cross-linking occurs. Bond breaking easily occurs in a bridge connected to the compound ring, and can form free radicals to form aromatic compounds (mainly CH ₄ ) or water.

The pyrolysis apparatus outlet 390 may include a first outlet 392 that receives the pyrolyzed coal from the pyrolysis body 320, a second outlet 394 connected to the first outlet 392, and the second outlet. A second vacuum pump 396 connected to a third gate 393 for controlling the fall of coal between the first discharge part 392 and the pyrolysis body 320 and the first discharge part 392 to create a low oxygen atmosphere. ), And a fourth gate 397 disposed at a lower end of the first discharge part 392.

Coal dried in the pyrolysis body 320 may be accumulated in the first discharge portion 392 while the third gate 393 is opened. When a predetermined amount of coal is accumulated in the first discharge portion 392, the third gate 393 is closed and the second vacuum pump 396 is operated so that the first discharge portion 392 is in a low oxygen state or a vacuum state. Can be Coal in the first outlet 392 in a low oxygen or vacuum state may move to the second outlet 394 as the fourth gate 397 opens. When the coal in the first outlet 392 completes the movement to the second outlet 394, the third gate 393 is opened with the fourth gate 397 closed again, and the same operation is performed. Can be repeated. The second vacuum pump 396 has the first discharge part 392 in a low oxygen state or a vacuum state after both the third gate 393 and the fourth gate 397 are closed, and then 1 high-quality coal can be supplied to the discharge portion (392).

5 and 8, the third gate 393 partially overlaps with the third upper gate 393b and the third upper gate 393b coupled to the fifth sealing portion 393a at an end thereof. The fourth upper gate 393d coupled to the sixth sealing portion 393c may be included at the end thereof. The third upper gate 393b and the fourth upper gate 393d may be rotated to open and close in a vertical direction to prevent wear and heat generation due to friction. Since the fifth sealing part 393a and the sixth sealing part 393c have an adhesive force, the first discharge part 392 may help to reach a low oxygen state or a vacuum state.

8 and 9, the fourth gate 397 partially overlaps the third lower gate 397b and the third lower gate 397b coupled to the seventh sealing part 397a at an end thereof. The fourth lower gate 397d coupled to the eighth sealing portion 397c may be included at an end thereof. The third lower gate 397b and the fourth lower gate 397d may be rotated to open and close in a vertical direction to prevent wear and heat generation due to friction. Since the seventh sealing part 397a and the eighth sealing part 397c have an adhesive force, the first discharge part 392 may help to reach a low oxygen state or a vacuum state. The first discharge part 392 reaches a low oxygen state or a vacuum state immediately after the high-quality coal is discharged from the pyrolysis body 320, and thus burns coal or explodes gas by reaction of gas and oxygen by coal pyrolysis. It can be prevented.

5 and 12, the gas generated in the pyrolysis body 320 may be discharged to the gas discharge pipe 360. Gas generated in the pyrolysis body 320 may vary, for example, methane (CH ₄ ), ethane (C ₂ H ₆ ), carbon monoxide (CO), carbon dioxide (CO ₂ ), hydrogen (H ₂ ), It may include ammonia (NH ₃ ), hydrogen sulfide (H ₂ S), water vapor (H ₂ O). The gas discharge pipe 360 may be connected to the cooling condensation device 370. The cooling condensation apparatus 370 may liquid phase separate gas generated from the pyrolysis body 320 through the cooling condensation method. The cooling condensation device 370 may be separated by gas while gradually lowering the temperature by using a difference in vaporization point or boiling point. The gas flowing into the cooling condensation device 370 may be separated several times because several kinds of gases are mixed. If 10 gases are mixed, they can be separated over 10 times. As exemplarily shown in FIG. 12, the gas may be separated into a liquid state by primary, secondary, tertiary and quaternary cooling condensation. For example, ammonia with a boiling point of minus 33.4 ° C. can be liquefied and separated by primary cooling condensation, and hydrogen with a boiling point of minus 252.9 ° C. can be liquefied and separated by a fourth cooling condensation. The liquid separated in the liquid phase from the cooling condensation device 370 may be stored in the liquid reservoir 380, respectively. The liquid stored in the liquid reservoir 380 may be stored and utilized respectively.

Although the embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art may implement the present invention in other specific forms without changing the technical spirit or essential features thereof. You will understand that. Therefore, it should be understood that the embodiments described above are exemplary in all respects and are not limited.

100: drying device
150: conveyor belt
200: polymer membrane device
300: pyrolysis device
20: grinder
30: dryer
50: cyclone
60: cooler
220: polymer membrane
250: heater
310: pyrolysis device input unit
320: pyrolysis body
330: combustion chamber
350: pyrolysis screw
360: gas discharge pipe
370; Cooling Condenser
380: liquid reservoir
390: pyrolysis unit outlet

Claims (10)

Drying device to dry the moisture of coal,
A pyrolysis device for pyrolyzing coal discharged from the drying device;
Including a polymer membrane device for making the air supplied to the pyrolysis device to a low oxygen state,
The pyrolysis device
Pyrolysis device input unit for receiving the dried coal in the drying device,
Pyrolysis body for pyrolyzing the coal supplied from the pyrolysis device input unit,
Combustion chamber for indirectly heating the pyrolysis body,
A pyrolysis chamber for transferring heat generated in the combustion chamber to the pyrolysis body,
A pyrolysis screw rotating in the pyrolysis body,
Pyrolysis device discharge unit for receiving high-quality coal from the pyrolysis body,
Gas discharge pipe for discharging the gas generated in the pyrolysis body,
A cooling condensation device connected to the gas discharge pipe to separate gas;
And a liquid reservoir connected to the cooling condenser to store the separated liquid. The method according to claim 1,
Coal high-definition system further comprises a heater for heating the low-oxygen air discharged from the polymer membrane device. The method according to claim 2,
The polymer membrane device
Air inlet,
A polymer separator which separates oxygen from components of air supplied from the air inlet,
And an air outlet for supplying the low oxygen air to the heater. The method according to claim 1,
The drying device is
Dryer inlet for supplying coal,
A pulverizer for pulverizing coal supplied to the drying apparatus inlet,
Dryer for drying the coal discharged from the grinder and
Coal high-definition system comprising a drying device outlet for discharging coal from the dryer. The method according to claim 4
The drying device is
Screw to move the coal discharged from the grinder to the dryer,
Cyclone to collect the pulverized coal discharged from the dryer,
A cooler separating the gas passing through the cyclone, and
And a reservoir for storing the liquid separated from the cooler. The method according to claim 4,
The dryer
Dryer body,
A baffle plate coupled to the dryer body to prevent a drop of coal;
A heat source for supplying heat to the dryer body;
Coal high-definition system coupled to the dryer body, including a heat insulation to reduce the heat loss supplied from the heat source. delete The method according to claim 1,
The combustion chamber is a coal high-grade system comprising a plurality of combustion chambers of which the temperature rises as the coal moves. The method according to claim 1,
The pyrolysis device input unit
A first input unit receiving the dried coal in the drying apparatus;
A second input unit connected to the first input unit,
A first gate for controlling the drop of coal between the first input unit and the second input unit;
And a first vacuum pump connected to the second input to create a low oxygen atmosphere. The method according to claim 9,
The first gate is
A first sealing portion coupled to a first upper gate and an end of the first upper gate;
A second sealing portion coupled to a second upper gate and an end of the second upper gate,
And the first upper gate and the second upper gate overlap each other in a closed state.

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