CN107033963A - A kind of pyrolytic process of coal device - Google Patents

A kind of pyrolytic process of coal device Download PDF

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Publication number
CN107033963A
CN107033963A CN201710396454.9A CN201710396454A CN107033963A CN 107033963 A CN107033963 A CN 107033963A CN 201710396454 A CN201710396454 A CN 201710396454A CN 107033963 A CN107033963 A CN 107033963A
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CN
China
Prior art keywords
coal
grades
pyrolysis
level
pyrolytic process
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710396454.9A
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Chinese (zh)
Inventor
朱书成
王希彬
曹国超
李明德
李金峰
李仿
吕艳吾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hebei Longcheng Coal Comprehensive Utilization Co ltd
Henan Longcheng Coal Efficient Technology Application Co Ltd
Original Assignee
Comprehensive Utilization Co Ltd Hebei Dragon Chengmei
Ltd Shaanxi Dragon Chengmei Clean And Efficient Use Of
Henan Longcheng Coal Efficient Technology Application Co Ltd
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Application filed by Comprehensive Utilization Co Ltd Hebei Dragon Chengmei, Ltd Shaanxi Dragon Chengmei Clean And Efficient Use Of, Henan Longcheng Coal Efficient Technology Application Co Ltd filed Critical Comprehensive Utilization Co Ltd Hebei Dragon Chengmei
Priority to CN201710396454.9A priority Critical patent/CN107033963A/en
Publication of CN107033963A publication Critical patent/CN107033963A/en
Priority to EP17911578.7A priority patent/EP3549998A4/en
Priority to KR1020197021310A priority patent/KR20190099041A/en
Priority to US16/478,222 priority patent/US20200032151A1/en
Priority to JP2019540602A priority patent/JP6968183B2/en
Priority to PCT/CN2017/114976 priority patent/WO2018218915A1/en
Priority to CA3047860A priority patent/CA3047860C/en
Priority to RU2019124330A priority patent/RU2734349C1/en
Priority to AU2017416200A priority patent/AU2017416200B2/en
Priority to ZA2019/04691A priority patent/ZA201904691B/en
Pending legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/72—Other features
    • C10J3/82—Gas withdrawal means
    • C10J3/84—Gas withdrawal means with means for removing dust or tar from the gas
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B27/00—Arrangements for withdrawal of the distillation gases
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B33/00—Discharging devices; Coke guides
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B47/00—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion
    • C10B47/18—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion with moving charge
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B47/00—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion
    • C10B47/28—Other processes
    • C10B47/30—Other processes in rotary ovens or retorts
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
    • C10B53/04—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of powdered coal
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
    • C10B57/02—Multi-step carbonising or coking processes
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
    • C10B57/08—Non-mechanical pretreatment of the charge, e.g. desulfurization
    • C10B57/10—Drying
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
    • C10B57/18—Modifying the properties of the distillation gases in the oven
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
    • C10K1/00—Purifying combustible gases containing carbon monoxide
    • C10K1/02—Dust removal
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
    • C10K1/00—Purifying combustible gases containing carbon monoxide
    • C10K1/02—Dust removal
    • C10K1/024—Dust removal by filtration
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
    • C10K1/00—Purifying combustible gases containing carbon monoxide
    • C10K1/02—Dust removal
    • C10K1/026—Dust removal by centrifugal forces
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0913—Carbonaceous raw material
    • C10J2300/093—Coal
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/12—Heating the gasifier
    • C10J2300/1269—Heating the gasifier by radiating device, e.g. radiant tubes
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/16—Integration of gasification processes with another plant or parts within the plant
    • C10J2300/1625—Integration of gasification processes with another plant or parts within the plant with solids treatment

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Industrial Gases (AREA)
  • Drying Of Solid Materials (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The invention belongs to technical field of heat exchange, a kind of pyrolytic process of coal device is provided, including one-level pyrolysis of coal device and two grades of pyrolysis of coal devices, the discharging opening of the one-level pyrolysis of coal device is connected with the charging aperture of two grades of pyrolysis of coal devices, coal tar is maximized and extracted by coal in one-level pyrolysis of coal device, subsequently into two grades of pyrolysis of coal devices, coal continues the pyrolysis that heats up on two grades of pyrolysis of coal device tops, make the upgraded coal fugitive constituent after being pyrolyzed upgrading through one-level, further reduced in two grades of pyrolysis of coal devices, produce more coal gas.

Description

A kind of pyrolytic process of coal device
Technical field
The present invention relates to technical field of heat exchange, and in particular to a kind of pyrolytic process of coal device.
Background technology
The pyrolysis plant of coal is according to the difference required final product, and pyrolysis plant also has great difference, coal tar oily yield Also there is a great difference, such as have significant difference in the type of furnace for the coke-fired furnace of making Jiao and for the blue carbon stove for producing blue carbon, it is burnt Stove produces coke fugitive constituent than relatively low, coal tar low yield, but coal is large-minded, and it is higher that blue carbon stove produces blue carbon fugitive constituent, coal tar Oily yield is of a relatively high, and coal gas amount is slightly lower, with the demand of Oil Strategy, high for oil productivity in recent years coalite tar Rotary kiln turns into new lover.Application number 201010262786.6, publication number CN101985558, the patent of the resolving device of coal material, Disclose and set in a kind of resolving device of coal material, including a closed kiln body for carrying charging aperture and discharging opening, the kiln body Flame feed channel heating arrangements are put, the coal material formed between the flame feed channel heating arrangements and kiln body inwall, which is promoted, decomposes logical The coal decomposed gas collecting pipe for promoting decomposition channels to connect with coal material is set in road, the kiln body.Because the invention is by flame tracheae Substantial amounts of heat transfer that road heating arrangements are produced, it is radiated coal material and promotes on the coal dust of decomposition channels, coal dust fully absorbs, Coal dust heating is decomposed, and is just promoted in coal material in split tunnel and is resolved into combustion gas, tar gas and the higher coal of calorific value, combustion gas and Jiao Oil gas is connected by the coal decomposed gas collecting pipe with the dedusting liquid body outside rotary kiln, by the combustion gas decomposed, Jiao Oil gas, it is dedusting, separation, pressurized liquefied.
Above-mentioned patent is really higher in terms of oily yield, is one and demonstrates, but this patent only accounts for producing to greatest extent Tar rate, the coal fugitive constituent not accounted for after the upgrading that this low temperature pyrogenation is brought is still larger, and hydrogenation of tar is to coal gas The demand of amount.Above-mentioned patent has its limitation, or coal tar oily yield is high, and coal gas amount is low, otherwise gas production is high, and coal tar Low yield, the two can not take into account.
The content of the invention
In view of this, the purpose that provides of the present invention be in view of the shortcomings of the prior art there is provided a kind of pyrolytic process of coal device, It can accomplish to take into account efficient aerogenesis and producing coal tar.
In order to solve the above technical problems, the technical solution used in the present invention is：A kind of pyrolytic process of coal device, including one Level pyrolysis of coal device and two grades of pyrolysis of coal devices, the one-level pyrolysis of coal device are that the decomposition of rotary kiln radiant tube coal is set Standby, the one-level pyrolysis of coal device includes one-level charging aperture, one-level discharging opening, one-level gas exit, mary radiation pipe heater Structure；
Two grades of pyrolysis of coal devices include two grades of charging apertures, secondary discharge port, two grades of gas exits, two grades of heating arrangements；
The one-level discharging opening is connected with two grades of charging apertures, and coal tar is maximized and extracted by coal in one-level pyrolysis of coal device Come, subsequently into two grades of pyrolysis of coal devices, coal continues the pyrolysis that heats up on two grades of pyrolysis of coal device tops, make to be pyrolyzed upgrading through one-level Upgraded coal fugitive constituent afterwards, is further reduced in two grades of pyrolysis of coal devices, produces more coal gas.
Two grades of pyrolysis of coal devices are that rotary kiln radiant tube coal resolving device or shaft furnace exchange type coal are decomposed Equipment.
The pyrolytic process of coal device is additionally included in the drying device that coal is set before one-level pyrolysis of coal device, after drying Coal enters one-level pyrolysis of coal device.
The pyrolytic process of coal device also includes one-level gas exit and sets deduster, and two grades of gas exits set dedusting Device, the deduster is the high temperature membrane filter of cyclone dust collectors or gravitational precipitator or cartridge surface overlay film.
The one-level gas exit and two grades of gas exits are pooled together into high temperature membrane filter.
The one-level gas exit and two grades of gas exits pool together and first pass through cyclone dust collectors or gravitational dust collection Device, enters back into the high temperature membrane filter.
The one-level gas exit enters membrane filter one, and two grades of gas exits enter membrane filter two.
The one-level gas exit first passes through cyclone dust collectors or gravitational precipitator one, described into membrane filter one Two grades of gas exits first pass through cyclone dust collectors or gravitational precipitator two, enter back into membrane filter two.
Advantages of the present invention：Coal is in one-level pyrolysis of coal device, and tar yield reaches the value of maximum, and one-level is contained into fugitive constituent Still higher upgraded coal enters two grades of pyrolysis of coal device relayings warm solution of continuing rising in the state of heat, produces fugitive constituent lower Upgraded coal, while increasing production more coal gas, coal gas amount containing CO, H2 that secondary pyrolysis is produced is more, and CO can be become by gas reforming Into H2, enough H2 sources can be provided for coal tar hydrogenating, effectively the cost of reduction coal tar hydrogenating.
Increase drying device advantageously reduces the energy consumption of pyrolysis of coal；It is in order to by containing dust, containing tar to set up filter Coal gas, removes dust-filtering from preceding in oil, qi leel, it is ensured that the gentle cleanliness factor of oil, is oily, the subsequent treatment of gas is established well Basis.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention one；
Fig. 2 is the structural representation of the embodiment of the present invention two；
Fig. 3 is the structural representation of the embodiment of the present invention three；
Fig. 4 is the structural representation of the embodiment of the present invention four.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention Accompanying drawing 1-4, the technical scheme to the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is this A part of embodiment of invention, rather than whole embodiments.Based on described embodiments of the invention, the common skill in this area The every other embodiment that art personnel are obtained, belongs to the scope of protection of the invention.
Embodiment one:As shown in figure 1, a kind of pyrolytic process of coal device, including one-level pyrolysis of coal device 1 and two grades of pyrolysiss of coal Device 2, the one-level pyrolysis of coal device 1 is rotary kiln radiant tube coal resolving device, and the one-level pyrolysis of coal device 1 is wrapped Include one-level charging aperture 11, one-level discharging opening 12, one-level gas exit 13, mary radiation pipe heating arrangements 14；
Two grades of pyrolysis of coal devices 2 include two grades of charging apertures 21, secondary discharge port 22, two grades of gas exits 23, two grades of heating Mechanism 24；
The one-level discharging opening 12 is connected with two grades of charging apertures 21, and coal maximizes coal tar in one-level pyrolysis of coal device 1 Extract, subsequently into two grades of pyrolysis of coal devices 2, coal continues the pyrolysis that heats up on two grades of tops of pyrolysis of coal device 2, made through one-level The upgraded coal fugitive constituent after upgrading is pyrolyzed, is further reduced in two grades of pyrolysis of coal devices 2, more coal gas are produced.
Two grades of pyrolysis of coal devices 2 are rotary kiln radiant tube coal resolving device.
The pyrolytic process of coal device is additionally included in the drying device 3 that coal is set before one-level pyrolysis of coal device 1, after drying Coal enter one-level pyrolysis of coal device 1.
The one-level gas exit and two grades of gas exits enter a high temperature membrane filter 5.
Embodiment two：As shown in Fig. 2 a kind of pyrolytic process of coal device, including one-level pyrolysis of coal device 1 and two grades of pyrolysiss of coal Device 2, the one-level pyrolysis of coal device 1 is rotary kiln radiant tube coal resolving device, and the one-level pyrolysis of coal device 1 is wrapped Include one-level charging aperture 11, one-level discharging opening 12, one-level gas exit 13, mary radiation pipe heating arrangements 14；
Two grades of pyrolysis of coal devices 2 include two grades of charging apertures 21, secondary discharge port 22, two grades of gas exits 23, two grades of heating Mechanism 24；
The one-level discharging opening 12 is connected with two grades of charging apertures 21, and coal maximizes coal tar in one-level pyrolysis of coal device 1 Extract, subsequently into two grades of pyrolysis of coal devices 2, coal continues the pyrolysis that heats up on two grades of tops of pyrolysis of coal device 2, made through one-level The upgraded coal fugitive constituent after upgrading is pyrolyzed, is further reduced in two grades of pyrolysis of coal devices 2, more coal gas are produced.
Two grades of pyrolysis of coal devices 2 are rotary kiln radiant tube coal resolving device.
The pyrolytic process of coal device is additionally included in the drying device 3 that coal is set before one-level pyrolysis of coal device 1, after drying Coal enter one-level pyrolysis of coal device 1.
The one-level gas exit 13 and two grades of gas exits 23, which collect, first passes through a cyclone dust collectors or gravity Deduster 4, enters back into the high temperature membrane filter 5.
Embodiment three：As shown in figure 3, a kind of pyrolytic process of coal device, including one-level pyrolysis of coal device 1 and two grades of pyrolysiss of coal Device 2, the one-level pyrolysis of coal device 1 is rotary kiln radiant tube coal resolving device, and the one-level pyrolysis of coal device 1 is wrapped Include one-level charging aperture 11, one-level discharging opening 12, one-level gas exit 13, mary radiation pipe heating arrangements 14；
Two grades of pyrolysis of coal devices 2 include two grades of charging apertures 21, secondary discharge port 22, two grades of gas exits 23, two grades of heating Mechanism 24；
The one-level discharging opening 12 is connected with two grades of charging apertures 21, and coal maximizes coal tar in one-level pyrolysis of coal device 1 Extract, subsequently into two grades of pyrolysis of coal devices 2, coal continues the pyrolysis that heats up on two grades of tops of pyrolysis of coal device 2, made through one-level The upgraded coal fugitive constituent after upgrading is pyrolyzed, is further reduced in two grades of pyrolysis of coal devices 2, more coal gas are produced.
Two grades of pyrolysis of coal devices 2 are shaft furnace exchange type coal resolving device.
The pyrolytic process of coal device is additionally included in the drying device 3 that coal is set before one-level pyrolysis of coal device 1, after drying Coal enter one-level pyrolysis of coal device 1.
The one-level gas exit 13 enters membrane filter 1, and two grades of gas exits 23 enter membrane filter 2 52.
Example IV：As shown in figure 4, a kind of pyrolytic process of coal device, including one-level pyrolysis of coal device 1 and two grades of pyrolysiss of coal Device 2, the one-level pyrolysis of coal device 1 is rotary kiln radiant tube coal resolving device, and the one-level pyrolysis of coal device 1 is wrapped Include one-level charging aperture 11, one-level discharging opening 12, one-level gas exit 13, mary radiation pipe heating arrangements 14；
Two grades of pyrolysis of coal devices 2 include two grades of charging apertures 21, secondary discharge port 22, two grades of gas exits 23, two grades of heating Mechanism 24；
The one-level discharging opening 12 is connected with two grades of charging apertures 21, and coal maximizes coal tar in one-level pyrolysis of coal device 1 Extract, subsequently into two grades of pyrolysis of coal devices 2, coal continues the pyrolysis that heats up on two grades of tops of pyrolysis of coal device 2, made through one-level The upgraded coal fugitive constituent after upgrading is pyrolyzed, is further reduced in two grades of pyrolysis of coal devices 2, more coal gas are produced.
Two grades of pyrolysis of coal devices 2 are shaft furnace exchange type coal resolving device.
The pyrolytic process of coal device is additionally included in the drying device 3 that coal is set before one-level pyrolysis of coal device 1, after drying Coal enter one-level pyrolysis of coal device 1.
The one-level gas exit 13 enters membrane filter 1, and two grades of gas exits 23 enter membrane filter 2 52.
The one-level gas exit 13 first passes through cyclone dust collectors or gravitational precipitator 1, into membrane filter one 51, two grades of gas exits 23 first pass through cyclone dust collectors or gravitational precipitator 2 42, enter back into membrane filter 2 52.
Described above is the preferred embodiment of the present invention, it is noted that for those skilled in the art For, on the premise of principle of the present invention is not departed from, some improvements and modifications can also be made, these improvements and modifications It should be regarded as protection scope of the present invention.

Claims (8)

1. a kind of pyrolytic process of coal device, including one-level pyrolysis of coal device and two grades of pyrolysis of coal devices, it is characterised in that：Described one Level pyrolysis of coal device is rotary kiln radiant tube coal resolving device；
The one-level pyrolysis of coal device includes one-level charging aperture, one-level discharging opening, one-level gas exit, mary radiation pipe heater Structure；
Two grades of pyrolysis of coal devices include two grades of charging apertures, secondary discharge port, two grades of gas exits, two grades of heating arrangements；
The one-level discharging opening is connected with two grades of charging apertures, and coal tar is maximized and extracted by coal in one-level pyrolysis of coal device Come, subsequently into two grades of pyrolysis of coal devices, coal continues the pyrolysis that heats up on two grades of pyrolysis of coal device tops, make to be pyrolyzed upgrading through one-level Upgraded coal fugitive constituent afterwards, is further reduced in two grades of pyrolysis of coal devices, produces more coal gas.
2. pyrolytic process of coal device as claimed in claim 1, it is characterised in that：Two grades of pyrolysis of coal devices are rotary kiln spoke Penetrate pipe heated type coal resolving device or shaft furnace exchange type coal resolving device.
3. pyrolytic process of coal device as claimed in claim 1, it is characterised in that：The pyrolytic process of coal device is additionally included in one The drying device of coal is set before level pyrolysis of coal device, and coal after drying enters one-level pyrolysis of coal device.
4. pyrolytic process of coal device as claimed in claim 1, it is characterised in that：The pyrolytic process of coal device also includes one-level Gas exit sets deduster, and two grades of gas exits set deduster, and the deduster is cyclone dust collectors or gravitational precipitator Or the high temperature membrane filter of cartridge surface overlay film.
5. pyrolytic process of coal device as claimed in claim 4, it is characterised in that：The one-level gas exit and two grades of coals Gas outlet is pooled together into high temperature membrane filter.
6. pyrolytic process of coal device as claimed in claim 4, it is characterised in that：The one-level gas exit and two grades of coals Gas outlet, which is pooled together, first passes through cyclone dust collectors or gravitational precipitator, enters back into the high temperature membrane filter.
7. pyrolytic process of coal device as claimed in claim 4, it is characterised in that：The one-level gas exit enters membrane filtration Device one, two grades of gas exits enter membrane filter two.
8. pyrolytic process of coal device as claimed in claim 4, it is characterised in that：The one-level gas exit first passes through whirlwind and removed Dirt device or gravitational precipitator one, into membrane filter one,
Two grades of gas exits first pass through cyclone dust collectors or gravitational precipitator two, enter back into membrane filter two.
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