CN219156812U - Granular coal pyrolysis carbonization device - Google Patents

Abstract

The utility model discloses a pyrolysis carbonization device for granular coal, and relates to the field of pyrolysis equipment; the high-temperature pyrolysis system comprises a plurality of carbonization chambers arranged in a furnace body, and a waste heat exchange system and a coke discharging system are sequentially arranged below the carbonization chambers; the high-temperature pyrolysis system is externally connected with a clean coal conveying and storing system, the clean coal conveying and storing system is used for conveying the granular coal into the high-temperature pyrolysis system for pyrolysis, the high-temperature pyrolysis system is connected with a coal gas recovery processing system, and the coal gas recovery processing system can process and recover coal gas generated by pyrolysis of the granular coal. The granular coal pyrolysis carbonization device provided by the utility model can ensure that the coal pyrolysis efficiency is high, and the productivity is improved.

Description

Granular coal pyrolysis carbonization device

Technical Field

The utility model relates to the technical field of pyrolysis equipment, in particular to a pyrolysis carbonization device for granular coal.

Background

Coal is known as "black gold". The Shenfu coal field in the jurisdiction of the Shaanxi elm is characterized by quality advantages, low ash, low sulfur, low phosphorus and high calorific value, and the harmful elements of fluorine, chlorine and arsenic are extremely low in content and are accepted by the market, so that the Shenfu coal field becomes market-approved coal. The pyrolysis furnace is core equipment of coal chemical industry, and raw coal is heated to decompose under the condition of isolating air and oxygen, so that the process of decomposing the raw coal is called pyrolysis. The pyrolysis products are semicoke, coal gas and coal tar. In recent years, various types of pyrolysis furnaces are designed in China, the industrial operation is mature to be an internal heat type vertical furnace, the full utilization of coal resources becomes a focus of attention, however, the existing coal pyrolysis device has low productivity and low working efficiency, and the development of the industry is restricted.

Disclosure of Invention

The utility model aims to provide a granular coal pyrolysis carbonization device, which solves the problems in the prior art, ensures high coal pyrolysis efficiency and improves productivity.

In order to achieve the above object, the present utility model provides the following solutions:

the utility model provides a granular coal pyrolysis carbonization device, which comprises a high-temperature pyrolysis system, wherein the high-temperature pyrolysis system comprises a plurality of carbonization chambers arranged in a furnace body, and a waste heat exchange system and a coke discharging system are sequentially arranged below the carbonization chambers; the high-temperature pyrolysis system is externally connected with a clean coal conveying and storing system, the clean coal conveying and storing system is used for conveying the granular coal into the high-temperature pyrolysis system for pyrolysis, the high-temperature pyrolysis system is connected with a coal gas recovery processing system, and the coal gas recovery processing system can process and recover coal gas generated by pyrolysis of the granular coal; the utility model also provides a remote intelligent control system which is used for starting and stopping main equipment and VOCs equipment of the semi-coke furnace, adjusting parameters, interlocking, alarming, detecting material level, temperature, pressure and toxic and harmful gas, and completely realizing DCS remote control and display.

Optionally, the high-temperature pyrolysis system comprises eight carbonization chambers arranged in the same furnace body, and each 8 carbonization chambers is a furnace. Every four carbonization chambers are a group, each carbonization chamber comprises a preheating zone, a high-temperature pyrolysis zone and a low-temperature cooling zone which are sequentially arranged from top to bottom, each four preheating zones of the carbonization chambers form a common inner cavity, a dust removing smoke hood is arranged at the common inner cavity to isolate pulverized coal generated by coal, and pyrolyzed coal gas is collected from the outer side of the dust removing smoke hood and the inner wall of the common inner cavity through a discharge pipeline, so that the problem of pulverized coal in the coal gas is better solved. The low-temperature cooling area is provided with a built-in water-cooled internal air combustion-supporting device, the head of the water-cooled internal air combustion-supporting device is positioned at the lower part of the pyrolysis area, and can support combustion and heat of granular coal through air quantity adjustment, so that the blue carbon is produced without using return gas, the quality of the blue carbon is ensured, and the gas production quantity is large.

Optionally, a first cooling water jacket and a second cooling water jacket are sequentially arranged at the bottom of the furnace body, a water-cooling straight beam is arranged in the second cooling water jacket, and the semi-coke formed by pyrolysis in the high-temperature pyrolysis system can enter the waste heat exchange system after passing through an inner cavity of the first cooling water jacket and an inner cavity of the water-cooling straight Liang Hedi; the waste heat exchange system comprises an upper heat exchange module and a lower heat exchange module, wherein the central line of a tube bank of the upper heat exchange module is parallel to the central line of a tube bank of the lower heat exchange module, and the upper heat exchange module and the lower heat exchange module are arranged at intervals of one half of the tube banks in each dislocation; the bottom of the tube row of the upper heat exchange module and the bottom of the tube row of the lower heat exchange module are respectively provided with a medium inlet, the top of the tube row of the upper heat exchange module and the top of the tube row of the lower heat exchange module are respectively provided with a medium outlet, and the tube rows of the upper heat exchange module and the lower heat exchange module are respectively provided with a heat exchange medium; in the pyrolysis process of granular coal, the waste heat exchange module absorbs heat and slowly cools down, so that the problem of uniform cooling in the coke powder production process is solved, and the problem of coke quenching heat energy waste in the semi-coke production process is better solved. The evaporation capacity of each furnace configuration heat exchange module: 5t/h, rated vapor pressure: 4.2MPa, rated steam temperature: 254.7deg.C (saturated steam), feedwater temperature 60deg.C (power plant deaerator supply), blowdown rate: 3, conveying the power to a self-contained power plant, and generating electricity after the power is overheated by a heater. The purposes of fully utilizing heat energy, saving energy and reducing consumption are realized.

Optionally, the coke discharging system comprises a coke pushing box, a coke collecting opening is formed in the coke pushing Jiao Xiangding part, a distributor is arranged in the coke pushing box, a coke pushing bed is arranged below the coke pushing box, a cooling water pipe is connected to the coke pushing bed, one end of the coke pushing bed is connected with an electrohydraulic push rod, the electrohydraulic push rod can drive the coke pushing bed to horizontally reciprocate, a closed coke collecting bin is arranged below one side of the coke pushing bed, a closed scraper is arranged at the bottom of the closed coke collecting bin, a spraying device is arranged at the top of the closed scraper, and the closed coke collecting bin is communicated with a closed coke discharging bin arranged at the top of the underground corridor through a closed explosion-proof electrohydraulic flat valve; a closed explosion-proof electrohydraulic flat gate valve is arranged below the closed coke discharging bin, so that the semi-coke powder in the closed coke discharging bin can be discharged into a coke powder belt conveyor in the underground corridor for outputting according to a determined time, and a VOCs gas collecting cover is arranged at a coke outlet of the closed coke discharging bin; the semi-coke subjected to heat exchange by the waste heat exchanger enters a coke pushing box, the coke pushing box is optimally configured, and an electrohydraulic coke pusher is configured in every two carbonization chambers. Each electro-hydraulic coke pusher push rod is connected with cooling circulating water for cooling. Copper sleeve seals are arranged at the front and the back of each push rod, and each coke pusher is provided with a detachable bearing pinch roller, so that the coke pusher can move back and forth and stably in the horizontal direction. The collecting port and the distributing plate are arranged above the coke pushing box, and the water quantity is regulated and controlled through the cooling circulation water valve, so that the coke pushing rod is not deformed when being heated in the coke pushing box, and the temperature of the semi-coke is reduced again. The coke pusher in the coke pushing box continuously reciprocates, the cooled semi-coke is pushed into the closed coke collecting bin, and the closed scraper falling into the bin bottom enters the coke storing box again and is used for collecting and treating VOCs gas.

Optionally, the gas recovery processing system comprises a gas branch pipe, and gas generated by pyrolysis in the high-temperature pyrolysis system can enter the gas branch pipe through between the inner wall of the shared inner cavity and the outer wall of the dust-removing smoke hood; an electric turbine worm butterfly valve is arranged on the gas branch pipe, one end of the gas branch pipe is communicated with a furnace top gas collecting single-furnace pipeline, the output end of the furnace top gas collecting single-furnace pipeline is provided with a first electric blind plate valve, a first electric turbine worm butterfly valve and a furnace top gas explosion-proof plate, the tail end of the furnace top gas collecting single-furnace pipeline is communicated with a gas main pipeline, the gas main pipeline is connected with an electric catcher through a gas branch pipeline, a second electric blind plate valve and a second electric turbine worm butterfly valve, and the tail end of the electric catcher is connected with a gas main pipeline after electric catcher through a gas output pipeline, a gas electric blind plate valve and a gas electric turbine worm butterfly valve; the main gas pipeline after electric capture is respectively connected with a gas branch pipeline of a fan, is provided with a manual butterfly valve and an electric butterfly valve, is connected with a gas inlet of a volute type centrifugal fan through a pipeline, is pressurized through the fan, is output by a gas branch pipeline of a gas outlet, the electric butterfly valve and the manual butterfly valve, respectively enters a main gas output pipeline of a metal magnesium plant and a main gas output pipeline of a self-contained power plant after electric capture, and is provided with a connecting valve between the two main gas output pipelines; the mixed oil generated after each electric trap is purified and separated naturally flows into the water seal of each electric trap respectively, flows into the main pipeline of the mixed oil, and flows into the oil-water separation device for oil-water separation treatment. Firstly, utilizing natural fall, enabling mixed oil to enter a first-stage oil-water separator (a plurality of tanks) for oil-water separation, directly separating low-moisture coal tar from the bottom, and pumping the coal tar into a tar storage tank through a tar pump and a pipeline for external pin; the light oil separated from the upper surface of the ammonia water of the primary oil-water separator (multi-tank) is pumped into the outer pin of the light oil tank by a light oil pump, the ammonia water discharged from the primary oil-water separator is pumped into an ammonia water tank by an ammonia water pump through a pipeline, and is conveyed to a special ammonia water collecting tank for unified treatment. The whole oil-water separation device is designed in a closed mode, is configured to ventilate and collect VOCs gas, and is uniformly processed by the VOCs processing tower. The condensed water in the coal gas and the ammonia water in the mixed oil enter a special ammonia water collecting tank through a pipeline and are conveyed to a self-contained power plant boiler by an ammonia water pump, and the boiler is sent to a hearth for incineration through an atomizing nozzle by a high-pressure pump, and has a denitration effect on boiler flue gas.

Optionally, an electric gas switching valve is arranged at the tail end of the gas output main pipeline of the metal magnesium removal plant, an electric switching valve is arranged at the tail end of the gas output main pipeline of the self-contained power plant, and a pneumatic adjusting butterfly valve is arranged in both the gas main pipeline of the metal magnesium removal plant and the gas main pipeline of the self-contained power plant; the top of each furnace body is provided with a diffusing branch pipeline, a raw gas diffusing pneumatic quick-cutting butterfly valve and a raw gas diffusing main pipe; the top of the primary end of the main gas pipeline from the self-contained power plant and the top of the primary end of the main gas output pipeline from the metal magnesium plant are respectively provided with a gas diffusing branch pipe and a gas diffusing pneumatic quick-cutting butterfly valve, the two gas diffusing branch pipes are connected into the main gas diffusing pipeline and are conveyed to a safe position of the gas diffusing pipeline, and the gas diffusing pipeline is ignited and burned through an automatic igniter.

Optionally, the combustion-supporting gas of the water-cooled internal air combustion-supporting device is mixed by air and VOCs gas; one side of the furnace body is provided with a volute type centrifugal blower which respectively transmits combustion air to the water-cooled internal air combustion-supporting devices arranged in the carbonization chambers through air pipelines and electric regulating valves; three spiral case type centrifugal blowers are arranged in each two furnaces (16 carbonization chambers) to form a dual-purpose device, and the electric regulating valves are respectively connected with the water-cooled internal air combustion-supporting devices arranged in each carbonization chamber through air pipelines to convey air for supporting combustion in a high-temperature area.

Optionally, a cooling water circulation system is arranged in the carbonization chamber, the cooling water circulation system comprises a cooling circulating water pump, the cooling circulating water pump is sequentially connected with a cooling circulating water pipeline and a secondary pipeline cooling circulating water storage tank, the circulating water storage tank is provided with a sewage cleaning manhole, a liquid level meter, an exhaust pipe, a control valve, a sewage discharging valve, a pipeline and a cooling circulating water storage tank base, the cooling circulating water branch pipes of the cooling circulating water storage tank are respectively provided with the control valve, and the cooling circulating water branch pipes are respectively connected with a water inlet pipeline at the bottom of the water-cooled internal air combustion-supporting device of the carbonization chamber.

Optionally, the clean coal conveying and storing system comprises a clean coal conveying corridor, wherein a patrol robot is arranged on the clean coal conveying corridor, a belt conveyor is used for patrol inspection by the robot, a closed coal bin is used for storing clean coal (washed granular coal) bins, negative pressure dust collection is adopted for the coal bins, the dust raising problems of manual patrol inspection and coal falling of the clean coal conveying are well solved, and the clean coal conveying and storing system is provided with the clean coal conveying belt robot for patrol inspection and alarm, so that the waste of manpower is well solved; each carbonization chamber is provided with a quantitative coal bin, so that a guarantee is provided for uniformly discharging coal from each carbonization chamber. The sealed electrohydraulic flat gate valve arranged in the clean coal storage bin and the quantitative coal bin can effectively control the overflow of toxic and harmful gases by double chambers and double gates; the top of the furnace body is provided with a top platform, the top platform is provided with a positive and a negative belt conveyor and a belt distributor, the tail end of the coal conveying corridor is positioned above the positive and negative belt conveyor, a coal storage bin is arranged below the belt distributor, the bottom of the coal storage bin is respectively provided with a fully-closed electrohydraulic flat valve, a charging quantitative bin is arranged below the fully-closed electrohydraulic flat valve, and the charging quantitative bin can be used for quantitatively discharging closed electrohydraulic flat gate valves arranged up and down according to production requirements. The device solves the problem of uniform quantitative coal feeding, controls the overflow of toxic and harmful gases, meets the environment-friendly requirement, is provided with a fully-closed electrohydraulic flat valve under a quantitative bin, and is communicated with a carbonization chamber in a furnace body through a coal conveying square box at the bottom of the quantitative bin.

Compared with the prior art, the utility model has the following technical effects:

the preheating areas at the upper parts of every four carbonization chambers form a common inner cavity, and the coal entering the device is preheated. The top of each four carbonization chambers is provided with a special dust collection cover, and when in production operation, coal dust generated by coal is isolated, and mixed gas generated by carbonization and pyrolysis is divided for the first time. The mixed gas of pyrolysis is collected from the exhaust pipeline between the outside of the dust removal petticoat pipe and the inner wall of the shared inner chamber, through the interference to flue gas passing and time, the separation of the mixed gas and coal dust in a hearth is better solved, and the dust content in coal tar is better reduced. Each carbonization chamber is respectively provided with a high-temperature area and a low-temperature cooling area. The built-in water-cooled combustion-supporting device of each chamber is used for supporting combustion of pyrolysis granular coal, and the quality of coke powder is effectively adjusted through an air supply system. The method does not need to use the return gas to produce the semi-coke powder, ensures the quality of the semi-coke powder and has large gas production quantity, thereby being very suitable for the matched enterprises with large gas demand. The utility model makes an optimal design on the tube rows of the upper and lower waste heat exchange modules in the same direction, the tube row spacing of the upper and lower heat exchange modules is unchanged, and the center line of the lower tube row is parallel to the center line of the upper tube row and is staggered by 1/2 tube row spacing under the condition that the material feeding is not influenced. In the dry distillation pyrolysis process of the semi-coke, the granular coal forms a natural alternate dry distillation temperature field with uniform inner cavity in the waste heat exchange module, so that the phenomenon of over-burning or under-burning easily occurs during the pyrolysis of the semi-coke is better changed, the granular coal is more sufficient in the high-temperature pyrolysis process, and the quality of the semi-coke is improved. The coke powder pushing speed of the coke pusher at the bottom of the waste heat exchange module is adjusted, so that the granular coal undergoes endothermic reaction in the waste heat exchange module to be slowly cooled, and the problem of coke quenching heat energy waste in the process of cooling in semi-coke production is better solved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a front view of a pyrolysis carbonization device for granular coal according to the present utility model;

FIG. 2 is a side view of the pyrolysis and carbonization device for granular coal according to the present utility model;

FIG. 3 is a top view of the pyrolysis and carbonization device for granular coal according to the present utility model;

FIG. 4-1 is a front view of the hood of the present utility model;

FIG. 4-2 is a top view of the dust hood of the present utility model;

FIG. 5-1 is a front view of a waste heat exchange module of the present utility model;

FIG. 5-2 is a side view of the waste heat exchange module of the present utility model;

fig. 5-3 are top views of the waste heat exchange module of the present utility model;

FIG. 6-1 is a front view of the coke pusher of the present utility model;

FIG. 6-2 is a side view of the coke pusher of the present utility model;

FIG. 6-3 is a top view of the coke pusher of the present utility model;

FIG. 7 is a schematic diagram of the piping and valve arrangement at a scroll-type centrifugal fan of the present utility model;

FIG. 8 is a schematic diagram of the piping arrangement of the cooling circulation water inlet of the present utility model;

FIG. 9-1 is a front view of the structure of the water-cooled internal air burner of the present utility model;

FIG. 9-2 is a side view of the structure of the water-cooled internal air burner of the present utility model;

FIG. 9-3 is a top view of the structure of the water-cooled internal air burner of the present utility model;

FIG. 10 is a schematic diagram of a cooling circulating water reservoir of the present utility model;

FIG. 11 is a schematic diagram of the piping arrangement at the return water of the cooling circulating water of the present utility model;

FIG. 12 is a schematic view of a cooling circulating water return collection tank according to the present utility model;

FIG. 13 is a schematic view of a guiding and positioning device according to the present utility model;

FIG. 14 is another angular schematic view of the guiding and positioning device of the present utility model;

reference numerals illustrate: 1-coal conveying corridor, 2-inspection robot, 3-top platform, 4-positive and negative belt conveyor, 5-belt distributor, 6-coal storage bin, 7-first full-closed electrohydraulic flat valve, 8-quantitative bin, 9-second full-closed electrohydraulic flat valve, 10-coal conveying square box, 11-dust collecting hood, 12-shared inner cavity, 13-preheating zone, 14-high temperature pyrolysis zone, 15-water-cooled internal air combustion supporting device, 16-low temperature cooling zone, 17-furnace steel platform, 18-first cooling water jacket, 19-straight beam, 20-second cooling water jacket, 21-upper heat exchange module, 22-lower heat exchange module, 23-steam drum, 24-first expansion joint, 25-coke pushing box, 26-coke pushing bed, 27-copper sleeve seal, 28-a coke tray, 29-a guiding and positioning device, 30-an electrohydraulic push rod, 31-a coke collecting bin, 32-a closed scraper, 33-a closed coke storing bin, 34-a closed explosion-proof electrohydraulic flat valve, 35-a coke discharging bin, 36-an underground corridor, 37-a closed explosion-proof electrohydraulic flat gate valve, 38-a guiding and positioning device base, 39-a guiding and positioning wheel, 40-a bearing, 41-a gas branch pipe, 42-a gas branch pipe electric turbine worm butterfly valve, 43-a diffusing branch pipe, 44-a raw gas diffusing pneumatic quick-cutting butterfly valve, 45-a raw gas diffusing main pipe, 46-a furnace top gas collecting single-furnace pipe, 47-a first electric blind plate valve, 48-a first electric turbine worm butterfly valve, 49-a furnace top gas explosion-proof plate, 50-a main gas pipeline, 51-a branch gas pipeline, 52-a second electric blind plate valve, 53-a second electric worm and gear butterfly valve, 54-an electric catcher, 55-a gas output pipeline of the electric catcher, 56-a electric blind plate valve, 57-a electric worm and gear butterfly valve, 58-a main gas pipeline after electric catching, 59-a branch gas pipeline of a fan, 60-a manual butterfly valve, 61-an electric butterfly valve, 62-a volute type centrifugal fan of the gas pipeline, 63-a motor, 64-a gland, 65-a positioning ring, 66-a shaft, 67-a main gas output pipeline of a metal magnesium removal plant, 68-an electric gas switching valve, 69-a main gas pipeline of the metal magnesium removal plant, 70-a first pneumatic adjusting butterfly valve and 71-a main gas pipeline of mixed coal tar, 72-a main gas output pipeline from a self-contained power plant, 73-an electric switching valve, 74-a main gas pipeline from the self-contained power plant, 75-a second pneumatic adjusting butterfly valve, 76-a first gas diffusing branch pipe, 77-a first gas diffusing pneumatic quick-cutting butterfly valve, 78-a second gas diffusing branch pipe, 79-a second gas diffusing pneumatic quick-cutting butterfly valve, 80-a positioning rod, 81-a secondary VOCs gas pipeline, 82-a secondary VOCs gas pipeline, 83-an air inlet expansion joint, 84-a volute type centrifugal fan, 85-a permanent magnet servo motor, 86-a second expansion joint, 87-an air supply branch pipeline, 88-an electric adjusting butterfly valve, 89-an air supply main pipeline, 90-an air supply branch pipeline, 91-an electric adjusting valve, 92-a manual gate valve, 93-an air adjusting valve, 94-air supply auxiliary pipelines, 95-VOCs gas main pipelines, 96-cooling circulating water inlet pipelines, 97-through auxiliary pipelines, 98-cooling circulating water storage tanks, 99-water inlets, 100-cooling circulating water branch pipes, 101-cooling circulating water control valves, 102-cleaning manholes, 103-liquid level meters, 104-exhaust pipes and control valves, 105-blowdown valves and pipelines, 106-cooling circulating water storage tank bases, 107-cooling circulating water outlet pipelines, 108-return water pipelines, 109-return water collecting boxes, 110-carbonization chamber return water pipelines, 111-temperature detection transmitters, 112-control valves, 113-return auxiliary pipes and 114-return water main pipelines.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model aims to provide a granular coal pyrolysis carbonization device, which solves the problems in the prior art, ensures high coal pyrolysis efficiency and improves productivity.

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.

The utility model provides a granular coal pyrolysis carbonization device, which comprises a high-temperature pyrolysis system, wherein the high-temperature pyrolysis system comprises a plurality of carbonization chambers arranged in a furnace body, and a waste heat exchange system and a coke discharging system are sequentially arranged below the carbonization chambers; the pyrolysis system is externally connected with a clean coal conveying and storing system, the clean coal conveying and storing system is used for conveying the granular coal into the pyrolysis system for pyrolysis, the pyrolysis system is connected with a coal gas recovery processing system, and the coal gas recovery processing system can process and recover the coal gas generated by pyrolysis of the granular coal.

Specifically, as shown in fig. 1, 2, 3, 4-1, 4-2, 5-1, 5-2, 5-3, 6-1, 6-2, 6-3, 7, 8, 9-1, 9-2, 9-3, 10, 11, 12, 13 and 14, the inspection robot 2 is configured on the upper granular coal conveying corridor 1, so that the condition of conveying the upper granular coal can be observed at any time. The key parts of the positive and return belt conveyors 4 on the top platform 3, the belt distributor 5 on the top of the coal storage bin 6, the material level of each coal storage bin 6, each control valve, the temperature, pressure, water quantity and the like of each monitoring point are provided with monitoring cameras. The number of on-site tour inspection times of staff can be effectively reduced, and the equipment and personal safety accidents are reduced.

The coal storage bin 6 at the top of the furnace is provided with a first fully-closed electrohydraulic flat valve 7 at the bottom according to the fixed-point distribution position of each carbonization chamber, and a quantitative bin 8 for charging into the furnace is arranged below the first fully-closed electrohydraulic flat valve and is placed into the furnace through a coal conveying square box 10 according to a certain quantity and a certain time. A second fully-closed electrohydraulic flat valve 9 is arranged below the quantitative bin 8, and double-chamber double-gate control is realized, so that dust and toxic and harmful gas overflow are avoided. The furnace top is externally provided with: and each furnace is provided with a furnace top explosion-proof plate, so that the operation safety is ensured.

The eight carbonization chambers are a furnace, wherein four carbonization chambers are a group. The production of semi coke is 15 ten thousand tons per furnace year. Each carbonization chamber is divided into a preheating zone, a high-temperature pyrolysis zone and a low-temperature cooling zone. The preheating areas at the upper parts of every four carbonization chambers form a common inner cavity 12, and preheating treatment is carried out on the coal entering the furnace. The top of each four carbonization chambers is provided with a dust collection hood 11 for isolating coal dust generated by coal falling, and pyrolyzed coal gas is collected by a discharge pipeline between the outer side of the dust collection hood and the inner wall of the shared inner cavity, and the coal dust generated by coal falling is isolated from the coal gas generated by pyrolysis. Is favorable for purifying coal gas and provides high coal tar quality. The lower part of the preheating zone 13 is a high-temperature pyrolysis zone 14, the high-temperature pyrolysis zone 14 is provided with a built-in water-cooled internal air combustion-supporting device 15, and the head part of the water-cooled internal air combustion-supporting device 15 is arranged at the lower part of the high-temperature pyrolysis zone 14 and is used for carrying out combustion-supporting heating on the granular coal through air quantity adjustment. Temperature thermocouples are respectively arranged in the middle and the upper part of the high temperature area for temperature monitoring. The furnace type does not need to use the return gas to produce the semi-coke, the quality of the semi-coke is ensured, and the gas production amount is larger. The low-temperature cooling area 16 is arranged below the high-temperature pyrolysis area 14, the water-cooled internal air combustion-supporting device 15 is arranged in the low-temperature cooling area 16, extends to the high-temperature pyrolysis area 14, and is protected by water cooling. The whole device is built by using refractory high-alumina bricks and heat insulation materials, the outer side is welded in a full-sealing way by using a steel plate, and the outer side is protected by using a protection furnace column. The whole furnace body seat is arranged above the furnace body steel platform 17. The bottom of the furnace body is provided with a first cooling water jacket 18, and the inner lining of the first cooling water jacket 18 is protected by a fireproof and wear-resistant material. The pyrolytic semi-coke enters the inner cavity of the water jacket through the furnace bottom, and then flows into the waste heat exchanger module through the water-cooled straight beam 19 and the second cooling water jacket 20 (the inner lining is protected by refractory wear-resistant materials).

The temperature of the waste heat enters the high Wen Lantan of the waste heat exchanger module and is extremely uneven. Testing by the furnace before original transformation. The test adopts a 1.5 meter thermocouple to be inserted by a detection hole on the outer wall of the furnace, and the depths are respectively as follows: 1.5 m, 1.35 m, 1.2 m, for a test time of 5 minutes each. Tests were performed at different time periods and the test results are shown in the following table:

production practices have demonstrated that: the quality of coal, the type of furnace and the production process are different, and the pyrolysis temperature of coal in the furnace is also different. By testing: the pyrolyzed semi-coke has the same height in the furnace, the radial direction is 1.5 m, the temperature is slightly lower than the radial direction 1.35 m because of being close to the water-cooled internal air combustion-supporting device 15, the radial direction 1.2 m is close to the furnace wall, the temperature is sprayed by the inner cavity of the scraper, water vapor is formed, the middle coke is dropped, and the water vapor flows upwards from the periphery, so the temperature close to the furnace wall is lower. For this purpose, the waste heat exchange module is divided into: an upper heat exchange module 21, a lower heat exchange module 22, a steam drum 23, a first expansion joint 24, pipelines, valves, meters and the like. The upper heat exchange module 21 and the lower heat exchange module 22 are installed in the same plane in a transverse relative dislocation mode by 1/2 under the condition that a certain interval of the water-cooled wall is ensured, and after the semi-coke is pyrolyzed at high temperature, the temperature needs to be gradually reduced, and the process needs to be highly satisfied. The technology is characterized in that in the waste heat exchange design, an upper heat exchange module 21 and a lower heat exchange module 22 are adopted for dislocation design, so that high temperature heat Jie Lantan is naturally and alternately used for uniform heat exchange in an inner cavity. The heat exchange module has the advantages of more sufficient heat absorption, quicker cooling of semi-coke and better quality of semi-coke. The main design parameters of the waste heat exchange module are as follows: mass flow of semi coke: 20t/h, inlet semi-coke temperature: 850 ℃, export semi-coke temperature: 120-330 ℃, the evaporation capacity of the heat exchange module: 4.5-5t/h, rated steam pressure: 4.2MPa, rated steam temperature: 254.7deg.C (saturated steam), feedwater temperature 60deg.C (power plant deaerator supply), blowdown rate: 3, waste heat recovery efficiency: 67.72%. And (5) conveying the waste water to a company self-contained power plant, and generating power after the waste water is overheated by a heater. The waste heat is utilized to reduce the temperature of the semi coke, thereby playing a role in dry quenching. Not only ensures the improvement of the quality of the semi-coke, but also realizes the full utilization of heat energy and the purposes of energy conservation and consumption reduction.

The semi-coke coming out of the semi-coke waste heat exchange module enters a coke pushing box 25. The technology optimizes the coke pushing box 25 of the coke discharging system, and an electrohydraulic coke pusher is arranged in every two carbonization chambers and is divided into a front coke pushing box and a rear coke pushing box. Each coke pushing box 25 consists of a coke collecting port, a distributor, a ventilation beam, a copper sleeve seal 27 and a coke tray 28, and shares a coke pushing bed 26, a guiding and positioning device 29 and an electrohydraulic push rod 30. The coke receiving opening and the distributor above the coke pushing box 25 are protected by refractory heat insulation materials, the coke pushing bed is connected with cooling circulating water, the cooling circulating water is regulated and controlled through a valve, the coke pushing rod is prevented from being deformed by heat, and the semi-coke temperature is cooled again. Each pushing ram is fitted with a copper sleeve seal 27 in and out, and each pusher is provided with a guide positioning device 29 designed to: a guide positioning device base 38, a guide positioning wheel 39, a bearing 40, a gland 64, a positioning ring 65, a shaft 66 and a positioning rod 80. A remotely controllable electro-hydraulic push rod 30 is used as power for pushing the coke bed 26. The semi-coke subjected to heat exchange by the waste heat exchange module enters from a coke collecting port of the coke pushing box 25, is separated to two sides by a distributor and enters the coke pushing bed 26, and the coke pushing bed 26 continuously and horizontally reciprocates under the action of the electro-hydraulic push rod 30 to push the semi-coke into a closed coke collecting bin 31 and falls into a closed scraper machine 32 at the bottom of the bin. A spraying device is arranged at the top of the scraper 32, and the water content of the semi-coke product is controlled by adjusting the spraying water quantity so as to meet the requirement of the product. The closed coke storage bin 33 is scraped into by the closed scraper 32, the closed coke storage bin 35 is unloaded into the closed coke discharging bin 35 through the closed explosion-proof electrohydraulic flat valve 34, and the coke discharging bin 35 is arranged at the top of the underground corridor 36. The coke discharging bin 35 is provided with a closed explosion-proof electro-hydraulic flat gate valve 37, the semi-coke powder of the coke discharging bin 35 is discharged into the coke powder belt conveyor in the underground corridor 36 according to the determined time for output, the coke discharging bins are arranged according to double-chamber double-gate configuration, VOCs gas collecting covers are arranged near each coke discharging port, VOCs gas is conveyed to the treatment tower for treatment through a pipeline, and the coke powder at the coke discharging ports is conveyed to the coke powder vibrating screen sieving building for classification by the belt conveyor and is conveyed to the semi-coke bin. The top of the carbonization chamber semi-coke furnace is provided with a gas collecting and diffusing pipeline and a valve. The gas generated during production operation is collected through a gas branch pipe 41 on each furnace roof, and the gas branch pipe is regulated and controlled by an electric turbine worm butterfly valve 42. Each furnace has ten gas collection branch pipes and valves, which are incorporated into the top gas collection single furnace pipe 46. The output end of the top gas collecting single-furnace pipeline 46 is provided with a first electric blind plate valve 47, a first electric turbine worm butterfly valve 48 and a top gas explosion-proof plate 49 for single-furnace gas control. Four furnaces are built in the whole system, the semi-coke yield is 60 ten thousand tons/year, 8 electric traps are arranged, and gas purified by each 4 electric traps is respectively provided for two domestic gas units of a metal magnesium plant and a self-contained power plant. Every two furnaces are corresponding to 4 electric traps. Every 4 electric traps are respectively provided with a main gas inlet pipeline and a main gas outlet pipeline. The coal gas output by each furnace enters a coal gas main pipeline 50 corresponding to an electric catcher 54, then enters the electric catcher 54 through a second electric blind plate valve 52 and a second electric worm and gear butterfly valve 53 by a coal gas branch pipeline 51, and enters the electric catcher from low position to purify the coal gas and capture coal tar. The purified gas is output to a main gas pipeline 58 after electric capture through a gas output pipeline 55, a gas electric blind plate valve 56 and a gas electric turbine worm butterfly valve 57 of the electric capture. Every 4 electric traps are provided with 3 gas pipeline volute type centrifugal fans 62, and a permanent magnet servo type motor 63 (two-purpose one) with 15% energy conservation is adopted as the motor. The main gas pipeline after the electric catcher is respectively connected with a main gas pipeline 59 of a fan, a manual butterfly valve 60 and an electric butterfly valve 61 are arranged, the main gas pipeline is connected with an air inlet of a volute type centrifugal fan 62 of the gas pipeline, the main gas pipeline is pressurized by the fan, and then is output by a main gas pipeline of an air outlet, an electric butterfly valve of the air outlet and a manual butterfly valve of the air outlet, the main gas pipeline 67 of a metal magnesium plant and the main gas pipeline 72 of a self-contained power plant are respectively arranged after the main gas pipeline enters the electric catcher, and a connecting valve is arranged between the main gas pipelines. An electric gas switching valve 68 is arranged at the tail end of a gas output main pipeline 67 of the metal magnesium removal plant, and an electric switching valve 73 is arranged at the tail end of a gas output main pipeline 72 of the self-contained power plant to switch the gas. So as to ensure continuous supply of gas for the magnesium metal factory. The gas main pipeline 69 of the metal magnesium removal plant is provided with a first pneumatic adjusting butterfly valve 70, the gas main pipeline 74 of the self-contained power plant is also provided with a second pneumatic adjusting butterfly valve 75, and the remote adjustment and the control are carried out through an electric valve so as to ensure the stable gas consumption of a gas consumption unit. When the furnace is started and stopped, raw gas is required to be diffused during semi-coke production. 8 raw gas diffusing branch pipelines 43,4 raw gas diffusing pneumatic quick-cutting butterfly valves 44 are arranged on the top of each furnace, and two raw gas diffusing main pipes 45 are arranged at the top of a factory building. The top of the primary end of the main gas pipeline from the self-contained power plant is provided with a first gas diffusion branch pipe 76, the top of the primary end of the main gas pipeline from the self-contained power plant is provided with a second gas diffusion branch pipe 78, the top of the primary end of the main gas output pipeline from the self-contained power plant is also provided with a second gas diffusion branch pipe 78, the second gas diffusion branch pipe 79 is connected with the main gas diffusion pipeline, and the two gas diffusion branch pipes are conveyed to a safe position of the gas diffusion pipeline and are ignited and burned through an automatic igniter. The electric-captured mixed coal tar is discharged from a coal tar discharge port of the electric catcher, enters into a water seal of the special electric-captured mixed coal tar through a pipeline and a valve to be collected, and enters into a main pipeline 71 of the mixed coal tar through the pipeline to naturally flow into a separation tank of the mixed coal tar to be dehydrated and separated.

An electric oil-water separating system of a carbonization chamber semi-coke furnace: the mixed oil generated after each electric trap is purified and separated naturally flows into the water seal of each electric trap respectively, flows into the main pipeline of the mixed oil, and flows into the oil-water separation device for oil-water separation treatment. Firstly, the mixed oil enters a steam heating oil-water separation tank by utilizing natural fall, the mixed oil is separated for a plurality of times, the light oil generated on the upper surface is pumped into the light oil tank through a light oil pump to be used as an outer pin, and the coal tar under the ammonia water is pumped into a steam heating coal tar tank outer pin through a coal tar pump. Ammonia water generated in the whole coal tar dehydration process is pumped into a special ammonia water collecting tank through an ammonia water pump, and then pumped into a self-contained power plant boiler through a special ammonia water pump for incineration treatment. The whole oil-water separation device is designed in a closed mode, is configured to ventilate and collect VOCs gas, and is uniformly processed by the VOCs processing tower. The self-contained power plant is provided with an ammonia water storage tank, and the ammonia water in the ammonia water collection tank of the semi-coke plant is conveyed to the ammonia water storage tank of the self-contained power plant through an ammonia water pipeline to be heated. The heating source is waste steam and condensed water generated by the continuous discharge of the boiler, which are input from the top of the ammonia water storage tank through a pipeline and are conveyed into a heater of the ammonia water storage tank through the pipeline, and firstly ammonia water is heated. And then the water is output from the top of the ammonia tank through a pipeline to form closed-circuit heating. The heated ammonia water is pressurized by an ammonia water pressurizing pump on a pipeline, a control valve and a check valve pressure gauge are arranged on the ammonia water pipeline, the ammonia water is respectively conveyed to two side walls of a No. 1 boiler and a No. 2 boiler with the height of 11 meters and the temperature in the boiler is about 800 ℃, and the ammonia water is sprayed into the boiler by the pipeline and an ammonia water spray gun. And 5 ammonia water spray guns are respectively arranged on two side walls of each boiler and spray into a boiler furnace, so that the ammonia water is burnt in the furnace. During incineration, ammonia water sprayed into the boiler reacts with NOX in flue gas in the boiler, and a certain denitration effect can be achieved.

The water-cooled internal air combustion-supporting device 15 arranged in the semi-coke furnace needs to provide combustion-supporting gas, and the device adopts air and VOCs gas for mixing to support combustion. The volute type centrifugal fan 84 is strong negative pressure at the air inlet, the processed VOCs gas is conveyed into the air inlet of the volute type centrifugal fan 84, and the sucked gas is conveyed into the water-cooled internal air combustion-supporting device 15 for combustion supporting and burning. The air supply system is configured with: the processed VOCs gas main pipeline 95, the VOCs gas auxiliary pipeline 81 and the VOCs gas branch pipeline 82 are additionally provided with a wind regulating valve 93 which is connected with the air inlet expansion joint 83 of the volute type centrifugal fan 84. The air regulating valve 93 is additionally arranged, so that the oxygen content supplement of VOCs gas is better solved when the oxygen content in the VOCs gas is insufficient. The volute centrifugal fan 84 is provided with a permanent magnet servo motor 85, so that 15% of energy can be saved. The air outlet of the scroll-type centrifugal fan 84 is provided with a second expansion joint 86 connected to an air supply branch pipe 87, and is provided with an electric adjustment butterfly valve 88. The branch pipelines of the two spiral case type centrifugal fans 84 are respectively integrated into the main air supply pipeline 89, and the auxiliary air supply pipeline 94 is additionally arranged to provide air sources for all air supply points because all the air supply points are different. Each air supply branch pipeline 90 is respectively provided with a check valve, an electric regulating valve 91 and a manual gate valve 92, and remote regulation and control are carried out according to the production running condition.

The cooling circulating water provided by the cooling circulating water pump of the semi-coke plant enters the cooling circulating water inlet pipeline 96 and is connected with the water inlet 99 of the cooling circulating water storage tank 98 installed on a platform of 16.57 m through the auxiliary pipeline 97, and the cooling circulating water storage tank 98 is provided with a cleaning manhole 102, a liquid level meter 103, an exhaust pipe, a control valve 104, a blow-down valve, a pipeline 105 and a cooling circulating water storage tank base 106, so that a water source is provided for cooling in a furnace. The 8 carbonization chambers are provided with 8 built-in water-cooled internal air comburents 15 which are respectively arranged above a straight beam 19 below a furnace body steel platform 17. The first cooling jacket 18 is also situated above the straight beam 19. Both ends of each straight beam 19 are plugged by steel plates, and a ventilation pipeline and a cooling circulating pipeline of the water-cooled internal air combustion-supporting device 15 pass through. The 1/2 part of each straight beam 19 is plugged, and the second cooling water jacket 20 and the straight beams 19 are welded into a whole to form two independent water inlet and outlet systems of the straight beam 19. The bottom of the cooling circulation water storage tank 98 is provided with 8 cooling circulation water branch pipes 100, and cooling circulation water control valves 101 are respectively installed. The 8 cooling circulating water branch pipes 100 are respectively connected with water inlet pipes at the bottoms of the water-cooled internal air comburers 15 of the 8 carbonization chambers, return water from water outlet pipes at the tops of the water-cooled internal air comburers 15 enters a water inlet at the bottom of the first cooling water jacket 18 at the bottom of the furnace, cooling circulating water from the upper end of the first cooling water jacket 18 enters a water inlet at the lower surface of the straight beam 19 and the second cooling water jacket 20, cooling circulating water discharged from water outlets at the upper surface of the straight beam 19 and the second cooling water jacket 20 is continuously conveyed downwards to water inlets of push rods of all coke pushing beds 26 through cooling circulating water outlet pipes 107 to cool the push rods, is discharged from water outlets of the push rods of the coke pushing beds 26 and is conveyed upwards to a return water collecting box 109 installed on a +11.182 m platform through a return water pipeline 108, and the return water collecting box 109 is provided with: the return water pipeline 110, the temperature detection transmitter 111 and the control valve 112 of each carbonization chamber are converged and concentrated through a return water converging box, enter a main return water pipeline 114 from a return water auxiliary pipeline 113 and are conveyed to a semi-coke plant cooling tower for cooling, so that semi-closed loop recycling is formed.

The utility model can realize intelligent remote monitor and control, reduce manual operation and safety accidents; all the process equipment adopts totally-enclosed design, manufacture and installation, and toxic and harmful overflow points are eliminated. After VOCs gas is treated, the waste carbon is conveyed to a semi-coke furnace, a self-contained power plant boiler is burnt, environmental protection indexes are ensured to reach standards, and clean production is achieved. The waste heat is selected to be fully utilized, the semi-coke temperature is reduced, the dry quenching effect is achieved, the use amount of new water is reduced, and meanwhile, the energy consumption is saved. The variable frequency regulation and control and the permanent magnet servo motor are adopted, so that the energy saving and consumption reduction purposes can be realized; the semi-coke furnace of the carbonization chamber does not need return gas, has large gas yield and can be fully utilized. The electric catching is directly configured to purify the coal gas, recycle the coal gas, the light oil and the coal tar, reduce the water consumption to the maximum extent, and the produced small amount of ammonia water is conveyed to a self-contained power plant boiler for incineration treatment. The whole device adopts DCS centralized control, monitors technological parameters and field scene vision screens. Further comprises: monitoring and alarming toxic and harmful gases; oxygen content monitoring, alarming, VOCs gas regulation and control and monitoring.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The principles and embodiments of the present utility model have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present utility model; also, it is within the scope of the present utility model to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the utility model.

Claims (9)

1. The utility model provides a granule coal pyrolysis carbomorphism device which characterized in that: the high-temperature pyrolysis system comprises a plurality of carbonization chambers arranged in a furnace body, and a waste heat exchange system and a coke discharging system are sequentially arranged below the carbonization chambers; the high-temperature pyrolysis system is externally connected with a clean coal conveying and storing system, the clean coal conveying and storing system is used for conveying the granular coal into the high-temperature pyrolysis system for pyrolysis, the high-temperature pyrolysis system is connected with a coal gas recovery processing system, and the coal gas recovery processing system can process and recover coal gas generated by pyrolysis of the granular coal.

2. The particulate coal pyrolysis carbonization device according to claim 1, wherein: the high-temperature pyrolysis system comprises eight carbonization chambers arranged in the same furnace body, each carbonization chamber comprises a preheating zone, a high-temperature pyrolysis zone and a low-temperature cooling zone which are sequentially arranged from top to bottom, each four preheating zones of the carbonization chambers form a common inner cavity, a dust-removing smoke hood is arranged at the common inner cavity, a built-in water-cooled internal air combustion-supporting device is arranged at the low-temperature cooling zone, the head of the water-cooled internal air combustion-supporting device is positioned at the lower part of the pyrolysis zone, and the granular coal can be heated in a combustion-supporting manner through air quantity adjustment.

3. The particulate coal pyrolysis carbonization device according to claim 2, wherein: a first cooling water jacket and a second cooling water jacket are sequentially arranged at the bottom of the furnace body, a water-cooling straight beam is arranged in the second cooling water jacket, and semi-coke formed by pyrolysis in the high-temperature pyrolysis system can enter the waste heat exchange system after passing through an inner cavity of the first cooling water jacket and an inner cavity of a water-cooling straight Liang Hedi second cooling water jacket; the waste heat exchange system comprises an upper heat exchange module and a lower heat exchange module, wherein the central line of a tube bank of the upper heat exchange module is parallel to the central line of a tube bank of the lower heat exchange module, and the upper heat exchange module and the lower heat exchange module are arranged at intervals of one half of the tube banks in each dislocation; the bottom of the upper heat exchange module tube row and the bottom of the lower heat exchange module tube row are respectively provided with a medium inlet, the top of the upper heat exchange module tube row and the top of the lower heat exchange module tube row are respectively provided with a medium outlet, and the heat exchange medium is respectively arranged in the upper heat exchange module tube row and the lower heat exchange module tube row.

4. The particulate coal pyrolysis carbonization device according to claim 1, wherein: the coke discharging system comprises a coke pushing box, a coke collecting opening is formed in the Jiao Xiangding pushing part, a distributor is arranged in the coke pushing box, a coke pushing bed is arranged below the coke pushing box, a cooling water pipe is connected to the coke pushing bed, one end of the coke pushing bed is connected with an electro-hydraulic push rod, the electro-hydraulic push rod can drive the coke pushing bed to horizontally reciprocate, a closed coke collecting bin is arranged below one side of the coke pushing bed, a closed scraper is arranged at the bottom of the closed coke collecting bin, a spraying device is arranged at the top of the closed scraper, and the closed coke collecting bin is communicated with a closed coke storage bin which is communicated with a closed coke discharging bin arranged at the top of the underground corridor through a closed explosion-proof electro-hydraulic flat valve; the closed type coke discharging bin is provided with a closed type explosion-proof electrohydraulic flat gate valve, so that the semi-coke powder in the closed type coke discharging bin can be discharged into a coke powder belt conveyor in an underground corridor for outputting according to a determined time, and a VOCs gas collecting cover is arranged at a coke outlet of the closed type coke discharging bin.

5. The particulate coal pyrolysis carbonization device according to claim 2, wherein: the gas recovery processing system comprises a gas branch pipe, and gas generated by pyrolysis in the high-temperature pyrolysis system can enter the gas branch pipe through between the inner wall of the shared inner cavity and the outer wall of the dust-removing smoke hood; an electric turbine worm butterfly valve is arranged on the gas branch pipe, one end of the gas branch pipe is communicated with a furnace top gas collecting single-furnace pipeline, the output end of the furnace top gas collecting single-furnace pipeline is provided with a first electric blind plate valve, a first electric turbine worm butterfly valve and a furnace top gas explosion-proof plate, the tail end of the furnace top gas collecting single-furnace pipeline is communicated with a gas main pipeline, the gas main pipeline is connected with an electric catcher through a gas branch pipeline, a second electric blind plate valve and a second electric turbine worm butterfly valve, and the tail end of the electric catcher is connected with a gas main pipeline after electric catcher through a gas output pipeline, a gas electric blind plate valve and a gas electric turbine worm butterfly valve; the main gas pipeline after electric capture is respectively connected with a gas branch pipeline of a fan, a manual butterfly valve and an electric butterfly valve are arranged, the main gas pipeline is connected with an air inlet of a volute type centrifugal fan through a pipeline, the main gas pipeline is pressurized through the fan, and then is output through a gas branch pipeline of an air outlet, the electric butterfly valve and the manual butterfly valve, the main gas pipeline respectively enters a main gas output pipeline of a metal magnesium plant and a main gas output pipeline of a self-contained power plant after electric capture, and a connecting valve is arranged between the main gas output pipelines.

6. The particulate coal pyrolysis carbonization device according to claim 5, wherein: the tail end of the gas output main pipeline of the metal magnesium removal plant is provided with an electric gas switching valve, the tail end of the gas output main pipeline of the self-contained power plant is provided with an electric switching valve, and the gas main pipeline of the metal magnesium removal plant and the gas main pipeline of the self-contained power plant are both provided with pneumatic regulating butterfly valves; the top of each furnace body is provided with a diffusing branch pipeline, a raw gas diffusing pneumatic quick-cutting butterfly valve and a raw gas diffusing main pipe; the top of the primary end of the main gas pipeline from the self-contained power plant and the top of the primary end of the main gas output pipeline from the metal magnesium plant are respectively provided with a gas diffusing branch pipe and a gas diffusing pneumatic quick-cutting butterfly valve, the two gas diffusing branch pipes are connected into the main gas diffusing pipeline and are conveyed to a safe position of the gas diffusing pipeline, and the gas diffusing pipeline is ignited and burned through an automatic igniter.

7. A particulate coal pyrolysis carbonization device according to claim 3, wherein: the combustion-supporting gas of the water-cooled internal air combustion-supporting device is mixed by air and VOCs gas; one side of the furnace body is provided with a volute type centrifugal blower, and the volute type centrifugal blower respectively transmits combustion air to the water-cooled internal air combustion-supporting devices in the carbonization chambers through air pipelines and electric regulating valves.

8. A particulate coal pyrolysis carbonization device according to claim 3, wherein: the cooling water circulating system comprises a cooling circulating water pump, the cooling circulating water pump is sequentially connected with a cooling circulating water pipeline and a secondary pipeline cooling circulating water storage tank, the circulating water storage tank is provided with a sewage cleaning manhole, a liquid level meter, an exhaust pipe, a control valve, a sewage discharging valve, a pipeline and a cooling circulating water storage tank base, the cooling circulating water branch pipes of the cooling circulating water storage tank are respectively provided with the control valve, and the cooling circulating water branch pipes are respectively connected with a water inlet pipeline at the bottom of the water-cooled internal air combustion-supporting device of the carbonization chamber.

9. The particulate coal pyrolysis carbonization device according to claim 1, wherein: the clean coal conveying and storing system comprises a coal conveying corridor, and a patrol robot is arranged on the coal conveying corridor; the top of the furnace body is provided with a top platform, the top platform is provided with a positive and a negative belt conveyor and a belt distributor, the tail end of the coal conveying corridor is positioned above the positive and negative belt conveyor, a coal storage bin is arranged below the belt distributor, the bottom of the coal storage bin is respectively provided with a fully-closed electro-hydraulic flat valve, a quantitative bin for charging is arranged below the fully-closed electro-hydraulic flat valve, a fully-closed electro-hydraulic flat valve is arranged below the quantitative bin, and the bottom of the quantitative bin is communicated with a carbonization chamber in the furnace body through a coal conveying square box.

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