CN205974443U - Gas combination gas electricity generation system is produced in pyrolysis of coal and pyrolysis tube schizolysis - Google Patents

Gas combination gas electricity generation system is produced in pyrolysis of coal and pyrolysis tube schizolysis Download PDF

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Publication number
CN205974443U
CN205974443U CN201620456532.0U CN201620456532U CN205974443U CN 205974443 U CN205974443 U CN 205974443U CN 201620456532 U CN201620456532 U CN 201620456532U CN 205974443 U CN205974443 U CN 205974443U
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China
Prior art keywords
cracking
gas
pyrolysis
heat
tube
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CN201620456532.0U
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Chinese (zh)
Inventor
耿层层
陈水渺
肖磊
薛逊
吴道洪
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Shenwu Technology Group Corp Co Ltd
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Beijing Shenwu Environmental and Energy Technology Co Ltd
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Abstract

The utility model provides a gas electricity generation system is united to pyrolysis and schizolysis product gas, include: the pyrolysis hopper, a feed arrangement, pyrolysis and cracking reactor include: thermal -insulated brick wall will the inside space separation of reactor becomes the pyrolysis chamber with splitting chamber, communication member, communication member sets up the lower part at thermal -insulated brick wall, lysing channel, lysing channel is located in the splitting chamber, the spray column, the spray column with cracked gas outlet connects, the gas jar, the gas jar with the spray column is connected, generating set, generating set with the gas jar is connected. This power generation system can carry out two kinds of operations of pyrolysis and schizolysis, oil gas that the pyrolysis chamber produced, and the pyrolysis tube that can get into in the splitting chamber carries out deep cracking, and dwell time in pyrolysis tube is long for oil gas, is the burnt oil molecules schizolysis of macromolecule the gaseous hydrocarbons of micro molecule. In addition, the radiant tube burning is partially supplied less to the cracking gas, and the surplus gas gets into gas turbine generator group, burning electricity generation.

Description

A kind of pyrolysis of coal and cracking tube cracking aerogenesis joint gas power generation system
Technical field
This utility model belongs to pyrolysis and cracking tube cracking aerogenesis and the fuel gas buring technical field of power generation of coal, specifically relates to And one kind is based on heat accumulation type radiant tube heated particle pyrolysis of coal and cracking tube cracking system to produce combustible gas combined generating system.
Background technology
Rich coal resources in China, in addition to part is used for coking, conversion processing, the overwhelming majority is for directly firing for raw coal Burn.Coal directly burns, and leads to the petroleum resources being rich in coal also sufficiently not refined utilization, and the direct combustion heat Efficiency is low, serious to environmental disruption.The pyrolysis of coal is to heat coal under an inert atmosphere, produces semicoke, coal gas and tar etc. and produces Product, these products obtaining, the synthesis of coal with cascade utilization, while petroleum resources is fully extracted, can be improve again again Utilization ratio.Pyrolytic process of coal can be divided into external-heat and internal heat type two class.External heating type heat efficiency is low, and volatility product twice decomposition is tight Weight;Internal heat type technique overcomes the shortcoming of external-heat, by heat carrier(Solid thermal carriers and gas heat carrier)Heat transfer To coal., there are carbonization gas and rushed dilute, condensate recovery system is huge in gas heat carrier technique, gas heating value low it is difficult to comprehensive further Close the shortcoming utilizing.Comparatively solid thermal carriers technique have certain advantage, but there is complex process operation link too Many, the shortcomings of manufacturing cost is high.The existing pyrolysis type of furnace is all to produce oil product as main purpose, but is mostly pyrolyzed the type of furnace, Especially to process the type of furnace as raw material for the fine coal, contain a large amount of dirt in pyrolysis oil, cause pyrolysis oil to be difficult to effectively utilizes, pyrolysis oil The problems such as be worth high.Therefore, how to design all simple pyrolysis of coal of a kind of high-effective dust-removing, system structure and technological process and split Solution aerogenesis joint gas power generation system becomes the problem of this area urgent need to resolve.
Utility model content
This utility model is directed to the deficiencies in the prior art, designs and develop a kind of pyrolysis and cracking tube cracking aerogenesis joint Gas power generation system, this response system can be pyrolyzed and be cracked two kinds of operations, the oil gas that pyrolysis chamber produces, and can enter cracking Indoor cracking tube carries out deep pyrolytic, and oil gas time of staying in cracking tube is long, the tar molecules of macromole is cracked into little The gaseous hydrocarbons of molecule, this reactor can produce substantial amounts of cracking gas, thus avoiding the problem producing pyrolysis oil dust-laden, really The clean and effective achieving coal utilizes.System that employs heat accumulation type radiant tube heating technique without gas, solid heat carrier heating, carry System process, the supply radial canal burning of cracking gas small part is simplified, remaining combustion gas is entered while the high thermal efficiency of reactor Enter jet dynamic control, combustion power generation.
For solving above-mentioned technical problem, the technical solution adopted in the utility model is:This utility model provides a kind of heat Solution and cracking aerogenesis joint gas power generation system.According to embodiment of the present utility model, this system includes:Pyrolysis hopper;First Feed arrangement, described first feed arrangement is connected with described pyrolysis hopper;Pyrolysis and cracking reactor, including:Charging aperture, pyrolysis Room, cracking room and cracking gas outlet, described charging aperture is arranged on the roof of described pyrolysis chamber, and described cracking gas outlet is arranged on On the side wall of described cracking room, and, heat accumulation type radiant tube, described heat accumulation type radiant tube is many along the short transverse of described reactor Layer is arranged in inside described pyrolysis chamber and described cracking room, and every layer has the many described heat accumulating type radiation arranged in the horizontal direction Pipe;Heat-insulated brick wall, described heat-insulated brick wall is arranged at the 2/3 of described reactor transverse width, vertically through in described reaction In device, the inner space of described reactor is separated into described pyrolysis chamber and described cracking room;Communication member, described communication member It is arranged on the bottom of described heat-insulated brick wall, for the oil gas producing described pyrolysis chamber, by described communication member, be passed into institute State cracking room;Cracking passage, described cracking passage is located at described cracking interior, and one end of described cracking passage connects structure with described One end that part is located at described cracking room connects, and the other end of described cracking passage is connected with the outlet of described cracking gas;Spray column, institute State spray column to be connected with the outlet of described cracking gas;Fuel cartridge, described fuel cartridge is connected with described spray column;Generating set, described Generating set is connected with described fuel cartridge.
Inventor finds, simple according to the electricity generation system system structure of this utility model embodiment, easy to operate, temperature is divided Uniformly, heats are good for cloth.Reactor is divided into pyrolysis chamber and cracking room, and this response system can be pyrolyzed and be cracked two kinds of works Industry, the oil gas that pyrolysis chamber produces, the indoor cracking tube of cracking can be entered and carry out deep pyrolytic, when oil gas stops in cracking tube Between long, the tar molecules of macromole are cracked into the gaseous hydrocarbons of small molecule, this reactor can produce substantial amounts of cracking gas, thus Avoid the problem producing pyrolysis oil dust-laden, the clean and effective being truly realized coal utilizes.Additionally, two can be carried out in a body of heater Plant operation, unite two into one, save construction cost and floor space, and, system that employs heat accumulation type radiant tube heating technique Without gas, solid heat carrier heating, simplify system process while the thermal efficiency that improve reactor, cracking gas small part is supplied Radial canal burns, and remaining combustion gas enters jet dynamic control, combustion power generation.
According to embodiment of the present utility model, described communication member is the multiple hole of inclusion being arranged on described heat-insulated brick wall Pore area;Or described communication member is on described heat-insulated brick wall longitudinal length, positioned at the opening of lower position.
According to embodiment of the present utility model, the thickness of described heat-insulated brick wall is 5-15cm, and the height of described pore area is 3- 15cm, a diameter of 1-3cm in described hole, the height of described opening is 3-15cm.
According to embodiment of the present utility model it is characterised in that further including combustion gas pressure fan and combustion gas air-introduced machine, its In, one end of described combustion gas pressure fan is connected with the outlet of described fuel cartridge, the combustion gas of the other end and described heat accumulation type radiant tube Entrance connects;Described combustion gas air-introduced machine is arranged between described spray column and described fuel cartridge.
According to embodiment of the present utility model, also include loading hopper;Second feed arrangement, it is connected with described loading hopper; Drying device, it is connected with the exhanst gas outlet on described second feed arrangement and described heat accumulation type radiant tube respectively;Gas solid separation Device, it is connected with described drying device and described pyrolysis hopper respectively;Exhaust gas cleaner, it is filled with described gas solid separation Put and be connected.
According to embodiment of the present utility model, described cracking passage is cracking tube it is preferred that cracking tube is the material that readily conducts heat Material, described cracking tube spirals and is distributed in described cracking interior, it is furthermore preferred that described cracking tube is round described heat accumulation type radiant tube Wriggle and be distributed, multi-tier arrangement;It is furthermore preferred that the other end of described cracking tube is welded in described cracking gas outlet.
According to embodiment of the present utility model, described pyrolysis hopper is by described first feed arrangement and described charging aperture phase Even;Further include that semicoke exports, described semicoke outlet is arranged on the bottom of described pyrolysis chamber, described semicoke outlet and described half Burnt conveyer device connects.
In other side of the present utility model, this utility model provides one kind and carries out heat using foregoing system The method of solution and cracking aerogenesis joint fuel gas generation is it is characterised in that comprise the following steps:A. granule materials are passed through charging Mouth is added in reactor, completes pyrolytic process in the pyrolysis chamber of described reactor;B. it is pyrolyzed the oil gas of generation, by institute State the communication member of setting on the heat-insulated brick wall of reactor, enter in the cracking passage in the cracking room of described reactor;C. heat The oil gas that solution produces, in the described cracking passage of described cracking room, carries out deep pyrolytic, produces cracking gas;D. described cracking gas Entered in spray column by cracking gas outlet, purified treatment is carried out to described cracking gas;E. purified net cracking gas is through combustion Fuel cartridge sent into by gas air-introduced machine, and the gas part in described fuel cartridge sends into the combustion gas of heat accumulation type radiant tube through combustion gas pressure fan Entrance, another part sends into generating set, carries out combustion power generation.
According to embodiment of the present utility model, in described step a, described granule materials are from the charging on described reactor top Mouth is added in described reactor, and is broken up by the described heat accumulation type radiant tube in described reactor, and pyrolysis char is from described anti- The semicoke answering device bottom exports discharge;In described step a, described granule materials are by the described accumulation of heat in described reactor pyrolysis chamber Formula radial canal is heated to 500-600 DEG C, and in described step b, described pyrolysis oil gas is by the described storage in described reactor cracking room Hot type radial canal is heated to 650-900 DEG C.
According to embodiment of the present utility model, the granularity of described granule materials is below 10mm.
The beneficial effects of the utility model are:
1)Take heat accumulation type radiant tube moving bed process heating 10mm particles below and powder coal, uniformity of temperature profile, Heats are good, and response system structure is simple, easy to operate, and feed coal utilization rate is high, are suitable to promote.
2)Reactor is divided into pyrolysis chamber and cracking room, and cracking room inside turn is dispersed with cracking tube, and cracking tube is round radiation Pipe wriggles and is distributed, the oil gas that pyrolysis chamber produces, and can enter the indoor cracking tube of cracking and carry out deep pyrolytic, oil gas is in cracking tube The middle time of staying is long, and the tar molecules of macromole are cracked into the gaseous hydrocarbons of small molecule;This response system can produce substantial amounts of splitting Vent one's spleen product, it is to avoid the problem of pyrolysis oil dust-laden, combustion gas incendivity generates electricity, be truly realized the clean and effective profit of Fossil fuel With.
3)Two kinds of operations can be carried out in one body of heater, unite two into one, save construction cost and floor space.
4)The supply radial canal burning of cracking gas small part, remaining combustion gas enters jet dynamic control, combustion power generation.
Brief description
Fig. 1 is this utility model pyrolysis of coal and cracking tube cracking aerogenesis joint gas power generation system structure chart.
Fig. 2 is the structure of reactor figure that this utility model pyrolysis of coal and cracking tube crack aerogenesis joint gas power generation system.
Fig. 3 is the front view of the heat-insulated brick wall in this utility model reactor.
Wherein, 1. loading hopper;2. riser exsiccator;3. thermal storage type moving bed reactor;310th, cracking gas outlet;311、 Exhanst gas outlet;320th, charging aperture;321st, air intake;322nd, fuel gas inlet;330th, semicoke outlet;340th, cracking room;350th, heat Solution room;360th, communication member;370th, heat-insulated brick wall;380th, heat accumulation type radiant tube;4. cyclone separator is dried;5. it is pyrolyzed hopper; 6. tail gas air-introduced machine;7. exhaust gas cleaner;8. chimney;9. rotary feeder;10. spray column;11. combustion gas air-introduced machines;12. combustions Gas tank;13. combustion gas pressure fan;14. conveying worms;15. jet dynamic control;16. cracking tubes.
Specific embodiment
In order that those skilled in the art more fully understand the technical solution of the utility model, with reference to specific embodiment The utility model is described in further detail.The embodiments described below is exemplary, is only used for explaining that this practicality is new Type, and it is not intended that to restriction of the present utility model.Unreceipted particular technique or condition in embodiment, according in the art The technology described by document or condition or carry out according to product description.
According to one side of the present utility model, this utility model provides a kind of pyrolysis of coal and cracking tube cracking aerogenesis connection Close gas power generation system, Fig. 1 is the structure chart that this pyrolysis of coal and cracking tube crack aerogenesis joint gas power generation system, as Fig. 1 institute Show, pyrolysis of coal and cracking tube cracking aerogenesis joint gas power generation system include:Pyrolysis hopper 5;First feed arrangement 9, described One feed arrangement 9 is connected with described pyrolysis hopper 5;Pyrolysis and cracking reactor 3, including:Charging aperture 320, pyrolysis chamber 350, split Solution room 340, cracking gas outlet 310, heat accumulation type radiant tube 380, heat-insulated brick wall 370, communication member 360 and cracking passage 16, its In, described charging aperture is arranged on the roof of described pyrolysis chamber, and described cracking gas outlet is arranged on the side wall of described cracking room, Described heat-insulated brick wall vertically through in described reactor, by the inner space of described reactor be separated into described pyrolysis chamber and Described cracking room;Described communication member is arranged on described heat-insulated brick wall, pyrolysis chamber is connected it is preferred that described with cracking room Communication member is arranged on the bottom of described heat-insulated brick wall, for the oil gas producing described pyrolysis chamber, by described communication member, It is passed into described cracking room;Described cracking passage is located at described cracking interior, and one end of described cracking passage connects structure with described One end that part is located at described cracking room connects, and the other end of described cracking passage is connected with the outlet of described cracking gas;Spray column 10, Described spray column is connected with the outlet of described cracking gas;Fuel cartridge, described fuel cartridge is connected with described spray column;Generating set, institute State generating set to be connected with described fuel cartridge.
Inventor finds, simple according to the electricity generation system system structure of this utility model embodiment, easy to operate, temperature is divided Uniformly, heats are good for cloth.Reactor is divided into pyrolysis chamber and cracking room, and this response system can be pyrolyzed and be cracked two kinds of works Industry, the oil gas that pyrolysis chamber produces, the indoor cracking tube of cracking can be entered and carry out deep pyrolytic, when oil gas stops in cracking tube Between long, the tar molecules of macromole are cracked into the gaseous hydrocarbons of small molecule, this reactor can produce substantial amounts of cracking gas, thus Avoid the problem producing pyrolysis oil dust-laden, the clean and effective being truly realized coal utilizes.Additionally, two can be carried out in a body of heater Plant operation, unite two into one, save construction cost and floor space, and, system that employs heat accumulation type radiant tube heating technique Without gas, solid heat carrier heating, simplify system process while the thermal efficiency that improve reactor, cracking gas small part is supplied Radial canal burns, and remaining combustion gas enters jet dynamic control, combustion power generation.
According to specific embodiment of the utility model it is adaptable to this electricity generation system process pyrolysis material concrete species and grain Footpath is not particularly limited, according to embodiment of the present utility model, be pyrolyzed material can be the Fossil fuels such as oil shale, coal it is also possible to It is rubbish, mud, junked tire etc., pyrolysis material can also be pyrolyzed material for little particle for block pyrolysis material, new in this practicality In the preferred embodiment of type, this electricity generation system adopts particle diameter 10mm particles below coal, thus, it is possible to make full use of little particle heat Solution material, resource utilization is high, and can solve the problem that bulk deposition pollutes the problem of environment.
According to specific embodiment of the utility model it is adaptable to the type of furnace of the described reactor 3 of this electricity generation system is not subject to spy Do not limit, can be thermal storage type moving bed pyrolysis and cracking reactor 3 can also be other types, such as non-heat accumulating type or non-moving Formula etc., as long as pyrolysis chamber and cracking room can be divided into by the integration of heat-insulated brick wall.
According to specific embodiment of the utility model, Fig. 2 is this pyrolysis of coal and cracking tube cracking aerogenesis joint fuel gas generation The pyrolysis of system and cracking reactor 3 structure chart, as shown in Fig. 2 described heat-insulated brick wall is arranged in reactor it is preferred that position At the 2/3 of reactor transverse width, the thickness of heat-insulated brick wall is 5-15cm, heat-insulated brick wall vertically through in reactor, The inner space of reactor is separated into pyrolysis chamber and cracking room, this structure makes to be provided with pyrolysis chamber in a body of heater and splits Solution room, the oil gas that pyrolysis chamber produces, can enter and in the cracking passage of cracking room, carry out deep pyrolytic, oil gas is in cracking passage The time of staying is long, the tar molecules of macromole is cracked into the gaseous hydrocarbons of small molecule, produces substantial amounts of cracking gas, thus avoiding Produce the problem of pyrolysis oil dust-laden.And, two kinds of operations can be carried out in a body of heater, unite two into one, save construction cost and Floor space.
According to specific embodiment of the utility model, the concrete species of described communication member 360 is not particularly limited, as long as Pyrolysis chamber can be connected with cracking room, thus the oil gas that pyrolysis chamber is produced is passed into cracking room.In this utility model Some embodiments in, when Fig. 3 is in terms of the from left to right of reactor, the front view of heat-insulated brick wall, as shown in figure 3, communication member Can be for being arranged on the pore area in the multiple holes of inclusion on heat-insulated brick wall, under preferable case, the height of described pore area is 3-15cm, institute State a diameter of 1-3cm in hole.Communication member can also be on heat-insulated brick wall longitudinal length, positioned at the opening of lower position, preferably In the case of, the height of described opening is 3-15cm.
According to specific embodiment of the utility model, the concrete species of described cracking passage 16 is not particularly limited.Preferably , cracking passage 16 is cracking tube, and cracking tube 16 is the material that readily conducts heat, and cracking tube spirals and is distributed in cracking interior, more preferably , cracking tube wriggles round radial canal and is distributed, multi-tier arrangement.Thus, when the oil gas that pyrolysis produces can be long in cracking tube Between stop, carry out deep pyrolytic.Additionally, one end that one end of cracking tube is located at cracking room with described pore area or opening is connected, institute The other end stating cracking tube can be fixed in described cracking gas outlet by modes such as welding.
According to specific embodiment of the utility model, as shown in figure 1, described charging aperture is arranged on the roof on pyrolysis chamber top On, pyrolysis hopper is connected with described charging aperture by the first feed arrangement;The concrete species of the first feed arrangement is not especially limited System, as long as the pyrolysis material in hopper can be effectively delivered in reactor.In some embodiments of the present utility model In, the first feed arrangement 9 can be rotary feeder or conveying worm.Defeated to the automatization of pyrolysis material thereby, it is possible to realize Send, conveying capacity is controlled, and device structure is simple, easy to operate.
According to specific embodiment of the utility model, as shown in figure 1, reactor further comprises semicoke outlet 330, institute State the bottom that semicoke outlet is arranged on described pyrolysis chamber, described semicoke outlet is connected with described semicoke conveyer device 14.Thus, may be used The semicoke obtaining in reactor to be conveyed using semicoke conveyer device.The concrete species of semicoke conveyer device 14 is not subject to spy Do not limit, including but not limited to star or conveying worm.Thereby, it is possible to realize the Automatic Conveying to semicoke, and conveying capacity Controlled, device structure is simple, easy to operate.
According to specific embodiment of the utility model, as shown in Fig. 2 described inside reactor has multilamellar along described reactor Short transverse be arranged in heat accumulation type radiant tube within described pyrolysis chamber and described cracking room, every layer of heat accumulation type radiant tube is permissible Heat accumulation type radiant tube including multiple parallel to each other and horizontally spaced distribution.According to embodiment of the present utility model, institute State pyrolysis chamber and cracking interior and distributed at least one described heat accumulation type radiant tube respectively it is preferred that described at least one accumulation of heat Formula radial canal is uniformly distributed.Heat accumulation type radiant tube can heat effective for the oil gas indoor to pyrolysis material and cracking, makes It is pyrolyzed and cracking reaction, specifically, can be passed through combustible gas and air into heat accumulation type radiant tube, so that combustible gas is burnt Realize the heating function to pyrolysis material.This equipment adopts heat accumulation type radiant tube heating technique, without gas, solid heat carrier heating, heat Vent one's spleen and will not be diluted, calorific value is high, and reactor temperature is evenly distributed, surface temperature difference is little, and exhaust gas temperature is low, the thermal efficiency is high, System process is simplified, response system structure is simple, easy to operate while the thermal efficiency that improve reactor.
In described reactor, pyrolysis material moves from top to bottom, and in described reactor, the heat accumulation type radiant tube of setting is permissible Pyrolysis material is broken up makes it be uniformly distributed, and pyrolysis material stops 1-40 minute in the reactor from top to bottom, and is heated to 500-600 ℃.According to embodiment of the present utility model, the shape of heat accumulation type radiant tube is not particularly limited, in some realities of the present utility model Apply in example, can be cylinder, thus be conducive to being pyrolyzed breaing up of material, realize uniform point in the reactor of mixed pyrolysis material Dissipate.Radial canal adopts the round tube of DN200-300, and the level interval of radial canal is 200-500mm, and vertical interval is 200- 700mm, the radial canal number of plies is 10-25 layer, and reactor width is 2-6m, and height for reactor is 3-20m.In addition, heat accumulating type radiation Pipe can be controlled in 450-1000 by gas control valve for the unidirectional heat accumulation type radiant tube being evenly arranged, the temperature of tube wall DEG C scope, heat accumulation type radiant tube can take the combustion system of regular commutation so that the surface temperature difference of single heat accumulation type radiant tube Only 30 DEG C about, there is no area of localized hyperthermia, thus, be conducive to improving the thermal efficiency.
According to specific embodiment of the utility model, described reactor be provided with fuel gas inlet 322, air intake 321 and Exhanst gas outlet 311, wherein, fuel gas inlet and exhanst gas outlet are connected with heat accumulation type radiant tube respectively, are respectively used to be passed through combustible gas With discharge flue gas, air intake is connected with source of the gas and heat accumulation type radiant tube respectively, and the air for producing source of the gas is passed through accumulation of heat In formula radial canal.
According to embodiment of the present utility model, as shown in figure 1, this synthesis gas system may further include:Loading hopper 1; The second feed arrangement being connected with loading hopper;It is connected with the exhanst gas outlet 311 of the second feed arrangement and heat accumulation type radiant tube respectively Drying device 2;The gas-solid separating device 4 being connected with drying device and pyrolysis hopper 5 respectively;It is connected with gas-solid separating device Exhaust gas cleaner 7.Thus, it is possible to the pyrolysis material in loading hopper be added in drying device by the second feed arrangement, dry In dry device, pyrolysis material is being dried in the presence of the flue gas (temperature is about 150-250 DEG C) of heat accumulation type radiant tube, so The mixture of dried pyrolysis material and flue gas enters gas-solid separating device afterwards, and (temperature is about 70-130 to separate the flue gas obtaining DEG C) enter in exhaust gas cleaner and carry out purified treatment, to realize qualified discharge, separate the pyrolysis material obtaining and be delivered to pyrolysis material In bucket, it is used for carrying out pyrolytic reaction.
According to embodiment of the present utility model, the concrete species of the second pay-off is not particularly limited, as long as being applied to Pyrolysis material in loading hopper is delivered in drying device.In some embodiments of the present utility model, the second feeding dress Putting can be star feeder or feed screw.Thereby, it is possible to realize the Automatic Conveying to pyrolysis material, and conveying capacity can Control, device structure is simple, easy to operate.
According to embodiment of the present utility model, the concrete species of drying device 2 is not particularly limited, if be capable of right The drying of pyrolysis material and the function of preheating.In some embodiments of the present utility model, drying device 2 can be riser Exsiccator 2, thus, pyrolysis material is dried in the presence of flue gas and is lifted, the mixture of dried pyrolysis material and flue gas Discharge riser exsiccator, be conducive to subsequent step to carry out.In drying device, while pyrolysis material is dried, also Achieve the function of preheating, be conducive to improving speed and the efficiency of follow-up pyrolytic reaction, and using heat accumulation type radiant tube discharge Flue gas is dried to pyrolysis material and preheats the comprehensive utilization it is achieved that heat energy, effectively reduces energy consumption, has reached energy-conserving and environment-protective Purpose.
According to embodiment of the present utility model, the concrete species of gas-solid separating device 4 is not particularly limited, as long as can be by Pyrolysis material separates with flue gas.In some embodiments of the present utility model, gas-solid separating device 4 can divide for whirlwind is dried From device 4, thus, it is possible to quickly and efficiently pyrolysis material and flue gas be carried out separating, and good separating effect, simple to operation, become This is relatively low.
According to embodiment of the present utility model, can also be further between gas-solid separating device 4 and exhaust gas cleaner 7 It is provided with tail gas air-introduced machine 6, tail gas air-introduced machine quickly and efficiently can will separate the flue gas conveying obtaining in gas-solid separating device To exhaust gas cleaner, be conducive to improving work efficiency.
According to embodiment of the present utility model, this pyrolysis plant is also provided with the chimney being connected with exhaust gas cleaner 8, the flue gas after exhaust gas cleaner purified treatment empties through chimney, thus, is conducive to environmental protection, reduces pollution.
According to embodiment of the present utility model, as shown in figure 1, this synthesis gas system further includes combustion gas pressure fan 13, One end of described combustion gas pressure fan is connected with the outlet of described fuel cartridge, the fuel gas inlet of the other end and described heat accumulation type radiant tube 322 connections.Thus, the fuel gas inlet 322 of the radial canal of pyrolysis reactor sent into by a part of combustible gas through combustion gas pressure fan.
According to embodiment of the present utility model, as shown in figure 1, this synthesis gas system further includes combustion gas air-introduced machine 11, Wherein, described combustion gas air-introduced machine is arranged between described spray column and described fuel cartridge.The outlet of spray column and combustion gas air-introduced machine Entrance connects, and the outlet of combustion gas air-introduced machine is connected with fuel cartridge entrance, and fuel cartridge outlet is connected with generating set.
In other side of the present utility model, this utility model provides one kind and carries out coal using foregoing system Pyrolysis and the method for cracking tube cracking production of synthetic gas.According to embodiment of the present utility model, the method may comprise steps of:
A. particulate coal is added in reactor by charging aperture, completes to be pyrolyzed in the pyrolysis chamber of described reactor Journey.Wherein, described particulate coal is added to reactor from the charging aperture on reactor top, and is radiated by the heat accumulating type in reactor Pipe is broken up, and pyrolysis char is discharged from the semicoke outlet of reactor bottom, and through semicoke conveyer device(Preferably conveying worm)Row Go out.
According to specific embodiment of the utility model it is adaptable to this electricity generation system process pyrolysis material concrete species and grain Footpath is not particularly limited, according to embodiment of the present utility model, be pyrolyzed material can be the Fossil fuels such as oil shale, coal it is also possible to It is rubbish, mud, junked tire etc., pyrolysis material can also be pyrolyzed material for little particle for block pyrolysis material, new in this practicality In the preferred embodiment of type, this electricity generation system adopts particle diameter 10mm particles below coal, thus, it is possible to make full use of little particle heat Solution material, resource utilization is high, and can solve the problem that bulk deposition pollutes the problem of environment.
According to embodiment of the present utility model, in the pyrolysis chamber of reactor, the heat accumulation type radiant tube of setting can be by pyrolysis material Break up and so that it is uniformly distributed, particulate coal stops 1-40 minute in the reactor from top to bottom, and particulate coal is by reactor pyrolysis chamber Heat accumulation type radiant tube be heated to 500-600 DEG C, specifically, can by gas valve control heat accumulation type radiant tube tube wall temperature For 500-700 DEG C, particulate coal is heated to rapidly 500-600 DEG C in the reactor, completes pyrolytic process.
B. it is pyrolyzed the oil gas of generation, by the communication member of setting on the heat-insulated brick wall of described reactor, enter into described anti- Answer in the cracking passage of cracking room of device.
According to embodiment of the present utility model, heat-insulated brick wall is arranged in reactor it is preferred that to be located at reactor laterally wide At the 2/3 of degree, the thickness of heat-insulated brick wall is 5-15cm, heat-insulated brick wall vertically through in reactor, by the inside of reactor Space is separated into pyrolysis chamber and cracking room, and this structure makes to be provided with pyrolysis chamber and cracking room in a body of heater, and is produced from pyrolysis chamber Raw oil gas, can enter the indoor cracking tube of cracking and carry out deep pyrolytic, oil gas time of staying in cracking tube is long, will divide greatly The tar molecules of son are cracked into the gaseous hydrocarbons of small molecule.Thus, two kinds of operations can be carried out in a body of heater, unite two into one, section Save construction cost and floor space.According to embodiment of the present utility model, communication member can be for being arranged on heat-insulated brick wall On pore area including multiple holes or heat-insulated brick wall longitudinal length, positioned at the opening of lower position.Specifically, cracking tube One end and described pore area or opening be located at one end of cracking room and be connected, the oil gas of pyrolysis generation, by the heat-insulated brick wall of reactor The pore area of bottom or opening, enter in the cracking tube of cracking room.
C. the oil gas being pyrolyzed generation, in the described cracking passage of described cracking room, carries out deep pyrolytic, produces cracking Gas.
According to embodiment of the present utility model, described cracking interior distributed at least one described heat accumulation type radiant tube, excellent Choosing, described at least one heat accumulation type radiant tube is uniformly distributed.Heat accumulation type radiant tube can be effective for the oil in cracking tube Gas is heated so as to be carried out cracking reaction.Cracking tube is the material that readily conducts heat, preferential iron pipe, and cracking tube total length is 5-50m, Cracking tube wriggles round radial canal and is distributed, multi-tier arrangement, and oil gas time of staying in thermal decomposition tube is long, carries out deep pyrolytic.Split The available steel rivet of solution pipe is fixed on heat-insulated brick wall, the other end of cracking tube(Outlet)It is connected to the cracking of reactor cracking room In gas outlet, for example, weld.Specifically, pyrolysis oil gas is heated to 650-900 by the heat accumulation type radiant tube in reactor cracking room DEG C, specifically, can be 650-900 DEG C by the temperature that gas valve controls heat accumulation type radiant tube tube wall, particulate coal is in reactor In be heated to rapidly 650-900 DEG C, complete thermal cracking processes, thus, the tar molecules of macromole are cracked into the gas of small molecule State hydro carbons, produces substantial amounts of cracking gas, it is to avoid the problem of pyrolysis oil dust-laden, is truly realized the clean and effective profit of Fossil fuel With.
D. described cracking gas is entered in spray column by cracking gas outlet, carries out purified treatment to described cracking gas.
E. purified net cracking gas sends into fuel cartridge through combustion gas air-introduced machine, and the gas part in described fuel cartridge is through combustion The fuel gas inlet of heat accumulation type radiant tube sent into by pneumatic transmission blower fan, and another part sends into generating set, carries out combustion power generation.
Embodiment one:
(1)The particulate coal being crushed to granularity≤10mm enters riser exsiccator 2 by loading hopper 1, is dried in riser In device, the 150-250 DEG C of flue gas using the radial canal smoke outlet from thermal storage type moving bed reactor 3 is done to coal Dry and lifting, coal enter cyclone separator 4 is dried, the coal dust separating enter into pyrolysis hopper 5 in, 70-130 DEG C about Flue gas is then admitted to exhaust gas cleaner 7 through tail gas air-introduced machine 6, reaches the flue gas after discharge standard and discharges through chimney 8.
(2)Coal enters thermal storage type moving bed reactor 3, moving-burden bed reactor 3 through rotary feeder 9 in pyrolysis hopper 5 Pyrolysis chamber and cracking room are divided into by grid brick wall.
(3)It has been evenly arranged unidirectional heat accumulation type radiant tube, tube wall temperature is controlled 500 using gas control valve in pyrolysis chamber ~700 DEG C of scopes, material stops 1-40 minute in the reactor from top to bottom, and is heated to 500~600 DEG C, completes to be pyrolyzed Journey.
(4)The oil gas that pyrolysis produces, by the opening of reactor lower part checker brick, enters into the indoor cracking tube 16 of cracking In, cracking tube is the material that readily conducts heat, preferential iron pipe, and cracking tube total length is 5-50m, and cracking tube wriggles round radial canal and divides Cloth, multi-tier arrangement, oil gas time of staying in thermal decomposition tube is long, carries out deep pyrolytic.It has been evenly arranged unidirectional accumulation of heat in cracking room Formula radial canal, tube wall temperature is controlled in 650~900 DEG C of scopes using gas control valve, and pyrolysis oil gas is indoor heated in cracking To 650-900 DEG C, complete thermal cracking processes, the tar molecules of macromole are cracked into the gaseous hydrocarbons of small molecule, produce substantial amounts of Cracking gas, it is to avoid the problem of pyrolysis oil dust-laden, the clean and effective being truly realized Fossil fuel utilizes.Cracking tube 16 can steel Rivet is fixed on checker brick.Cracking tube outlet is connected in gas reactor outlet.For example weld.
(5)Cracking gas passes through reactor outlet, enters in spray column 10 and washs, the net cracking gas after washing is through combustion gas blower fan 11 feeding fuel cartridges 12, sub-fraction combustible gas sends into the radial canal fuel gas inlet of pyrolysis reactor 3 through combustion gas pressure fan 13, greatly Jet dynamic control 15 sent into by part combustible gas, in order to combustion power generation.
(6)The semicoke that pyrolysis of coal produces is discharged by conveying worm 14, and semicoke can be used for combustion power generation or makes moulded coal.
Inventor finds, simple according to the electricity generation system system structure of this utility model embodiment, easy to operate, temperature is divided Uniformly, heats are good for cloth.Reactor is divided into pyrolysis chamber and cracking room, and this response system can be pyrolyzed and be cracked two kinds of works Industry, the oil gas that pyrolysis chamber produces, the indoor cracking tube of cracking can be entered and carry out deep pyrolytic, when oil gas stops in cracking tube Between long, the tar molecules of macromole are cracked into the gaseous hydrocarbons of small molecule, this reactor can produce substantial amounts of cracking gas, thus Avoid the problem producing pyrolysis oil dust-laden, the clean and effective being truly realized coal utilizes.Additionally, two can be carried out in a body of heater Plant operation, unite two into one, save construction cost and floor space, and, system that employs heat accumulation type radiant tube heating technique Without gas, solid heat carrier heating, simplify system process while the thermal efficiency that improve reactor, cracking gas small part is supplied Radial canal burns, and remaining combustion gas enters jet dynamic control, combustion power generation.
Using this utility model pyrolysis of coal and cracking tube cracking aerogenesis joint gas power generation system, brown coal are processed, former The basic data of material is shown in Table 1.
Table 1:Brown coal basic data
Process brown coal using this system, the factor of created gase obtaining is up to 25%, far above the product obtained by the pyrolysis of laboratory aluminum rice steamer Gas rate, pyrolytic tar almost all is cracked into gaseous products, and factor of created gase is high.Cracking gas calorific value is up to 5500kcal/m3, quality High.The cracking gas producing sends into jet dynamic control, combustion power generation.
It is to be understood that term " first ", " second " are only used for describing purpose in description of the present utility model, and It is not intended that instruction or hint relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define The feature of " first ", " second " can be expressed or implicitly include one or more this feature.
In this utility model, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " Gu Fixed " etc. term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integral;Can be It is mechanically connected or electrically connect;Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, can be two The connection of element internal or the interaction relationship of two elements.For the ordinary skill in the art, can basis Concrete condition understands concrete meaning in this utility model for the above-mentioned term.
In this utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score Can be the first and second feature directly contacts, or the first and second features pass through intermediary mediate contact.And, first is special Levy second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only Represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " permissible Be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height and be less than second feature.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or the spy describing with reference to this embodiment or example Point is contained at least one embodiment of the present utility model or example.In this manual, the schematic table to above-mentioned term State that be not necessarily referring to is identical embodiment or example.And, the specific features of description, structure, material or feature can be Combine in an appropriate manner in any one or more embodiments or example.Additionally, in the case of not conflicting, this area Technical staff the feature of the different embodiments described in this specification or example and different embodiment or example can be entered Row combines and combines.
Although of the present utility model embodiment has been shown and described above it is to be understood that above-described embodiment is Exemplary it is impossible to be interpreted as that those of ordinary skill in the art is in scope of the present utility model to restriction of the present utility model Interior above-described embodiment can be changed, change, replacing and modification, simultaneously for one of ordinary skill in the art, foundation The thought of the application, all will change in specific embodiments and applications.

Claims (7)

1. a kind of pyrolysis and cracking aerogenesis joint gas power generation system are it is characterised in that include:
Pyrolysis hopper;
First feed arrangement, described first feed arrangement is connected with described pyrolysis hopper;
Pyrolysis and cracking reactor, including:Charging aperture, pyrolysis chamber, cracking room and cracking gas outlet, described charging aperture is arranged on institute State on the roof of pyrolysis chamber, described cracking gas outlet is arranged on the side wall of described cracking room;And:
Heat accumulation type radiant tube, described heat accumulation type radiant tube along described reactor short transverse multi-tier arrangement in described pyrolysis chamber and Inside described cracking room, every layer has the many described heat accumulation type radiant tubes arranged in the horizontal direction;
Heat-insulated brick wall, described heat-insulated brick wall is arranged at the 2/3 of described reactor transverse width, vertically through in described reaction In device, the inner space of described reactor is separated into described pyrolysis chamber and described cracking room;
Communication member, described communication member is arranged on the bottom of described heat-insulated brick wall, for the oil gas producing described pyrolysis chamber, By described communication member, it is passed into described cracking room;
Cracking passage, described cracking passage is located at described cracking interior, one end of described cracking passage and described communication member position Connect in one end of described cracking room, the other end of described cracking passage is connected with the outlet of described cracking gas;Wherein, described split Solution passage is cracking tube, and described cracking tube spirals and is distributed in described cracking interior, and described cracking tube is round described heat accumulating type spoke Penetrate pipe and wriggle and be distributed, multi-tier arrangement;The other end of described cracking tube is welded in described cracking gas outlet;
Spray column, described spray column is connected with the outlet of described cracking gas;
Fuel cartridge, described fuel cartridge is connected with described spray column;
Generating set, described generating set is connected with described fuel cartridge.
2. system according to claim 1 is it is characterised in that described communication member is to be arranged on described heat-insulated brick wall Pore area including multiple holes;Or described communication member is on described heat-insulated brick wall longitudinal length, positioned at the opening of lower position.
3. system according to claim 2 it is characterised in that described heat-insulated brick wall thickness be 5-15cm, described pore area Height be 3-15cm, a diameter of 1-3cm in described hole, the height of described opening is 3-15cm.
4. the system according to any one of claim 1-3 is it is characterised in that further include combustion gas pressure fan and combustion gas Air-introduced machine, wherein, one end of described combustion gas pressure fan is connected with the outlet of described fuel cartridge, and the other end is radiated with described heat accumulating type The fuel gas inlet of pipe connects;Described combustion gas air-introduced machine is arranged between described spray column and described fuel cartridge.
5. the system according to any one of claim 1-3 is it is characterised in that also include loading hopper;Second feed arrangement, It is connected with described loading hopper;Drying device, its respectively with described second feed arrangement and described heat accumulation type radiant tube on cigarette Gas outlet connects;Gas-solid separating device, it is connected with described drying device and described pyrolysis hopper respectively;Tail gas clean-up fills Put, it is connected with described gas-solid separating device.
6. the system according to any one of claim 1-3 is it is characterised in that cracking tube is the material that readily conducts heat.
7. the system according to any one of claim 1-3 is it is characterised in that described pyrolysis hopper enters by described first Material device is connected with described charging aperture;Further include that semicoke exports, described semicoke outlet is arranged on the bottom of described pyrolysis chamber, Described semicoke outlet is connected with described semicoke conveyer device.
CN201620456532.0U 2016-05-19 2016-05-19 Gas combination gas electricity generation system is produced in pyrolysis of coal and pyrolysis tube schizolysis Withdrawn - After Issue CN205974443U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105802685A (en) * 2016-05-19 2016-07-27 北京神雾环境能源科技集团股份有限公司 Coal pyrolysis and cracking pipe cracking gas generation combined gas power generation system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105802685A (en) * 2016-05-19 2016-07-27 北京神雾环境能源科技集团股份有限公司 Coal pyrolysis and cracking pipe cracking gas generation combined gas power generation system

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