CN201201939Y - Stalk gasification furnace and stalk gas purification apparatus - Google Patents

Stalk gasification furnace and stalk gas purification apparatus Download PDF

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Publication number
CN201201939Y
CN201201939Y CNU2008200694188U CN200820069418U CN201201939Y CN 201201939 Y CN201201939 Y CN 201201939Y CN U2008200694188 U CNU2008200694188 U CN U2008200694188U CN 200820069418 U CN200820069418 U CN 200820069418U CN 201201939 Y CN201201939 Y CN 201201939Y
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CN
China
Prior art keywords
furnace body
flue
fuel gas
upper furnace
stalk gasifier
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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.)
Expired - Fee Related
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CNU2008200694188U
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Chinese (zh)
Inventor
古启隆
冯小龙
杜秋香
杜惠芳
李松龄
古发
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古启隆
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Priority to CNU2008200694188U priority Critical patent/CN201201939Y/en
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Publication of CN201201939Y publication Critical patent/CN201201939Y/en
Anticipated expiration legal-status Critical
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10Process efficiency
    • Y02P20/129Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines

Abstract

The utility model discloses a straw gasification furnace and a straw fuel gas purifier. The straw fuel gas purifier comprises a straw gasification furnace composed of an upper furnace body and a lower furnace body and communicated with a spray dust cleaner, a temperature reduction coke knocker, water loop vacuum pump, a water washing coke knocker, a gas water separator, a tar dust filter, a water seal safety device and a gas tank via pipes in turn. The straw fuel gas purifier has simple structure, simple installment, reliable performance, high gas generation, high gas generation efficiency, high gas purity, complete combustion, simple operation and wide application in countries, and can utilize resources effectively and prevent environment pollution.

Description

A kind of stalk gasifier and straw fuel gas refining plant
Technical field
The utility model relates to a kind of a kind of stalk gasifier and straw fuel gas refining plant that utilizes the carbon containing agricultural product castoff to produce combustible gas.
Background technology
At present, there is considerable rural area in China, in the agricultural-food results and the course of processing, all produce a large amount of carbonaceous refuses, such as stalk, corn cob, cotton stalk, beanstalk, Pericarppium arachidis hypogaeae, these wastes are mostly all by directly burning in vain, produce deleterious gas and smog, this not only causes the lot of energy waste, and brings very big environmental pollution; A lot of rural areas also being arranged, just to not Air environment, will gather in the crops the farm crop fruit afterwards with straw directly returning to field, though environment is not polluted like this, wasted lot of energy, also is worthless.
The utility model content
The utility model is in order to solve weak point of the prior art, a kind of stalk gasifier and straw fuel gas refining plant are provided, it utilizes a large amount of carbon containing agricultural product castoff such as stalk, corn cob, cotton stalk, beanstalk, Pericarppium arachidis hypogaeae in rural area to do raw material, produce inflammable gass such as carbon monoxide, hydrogen, methane, as the life in the countryside combustion gas.
For solving the problems of the technologies described above, a kind of stalk gasifier of the present utility model and straw fuel gas refining plant, comprise a kind of stalk gasifier, stalk gasifier is made up of upper furnace body and lower furnace body, be provided with flame retardant coating and flue in the upper furnace body, flue slopes inwardly from top to bottom also and forms annular preheating cavity between the flame retardant coating, is provided with some inlet mouths at the flue circumference, the overheating steam chamber that the upper furnace body lower inner wall communicates with annular preheating cavity, overheating steam chamber also is provided with the air outlet outside body of heater.
Described upper furnace body is provided with the filling pipe that is communicated with overheating steam chamber.
Described lower furnace body is outside to be provided with the fire grate drift stop with the fire grate correspondence position.
Described upper furnace body top is provided with opening for feed and porthole, and the lower furnace body inner upper end is provided with stove beam and fire grate, and bottom, lower furnace body side is provided with gray-drawing port.
Described stalk gasifier is communicated with by pipeline successively with water spray fly-ash separator, cooling decoking device, water-ring vacuum pump, washing decoking device, air water separator, tar dust filter, water seal cut out and gas-holder.
Described stalk gasifier comprises upper furnace body and lower furnace body, be provided with flue in the upper furnace body, flue slopes inwardly from top to bottom also and forms annular preheating cavity between the flame retardant coating, is provided with some inlet mouths at the flue circumference, is provided with the overheating steam chamber with air outlet between upper furnace body lower inner wall and the flue.
Described stalk gasifier top is provided with hopper, and hopper is feeded to stalk gasifier by crane.
Described cooling decoking device is made up of one-level cooling decoking device and secondary cooling decoking device.
Described upper furnace body is provided with the filling pipe that is communicated with overheating steam chamber.
Described upper furnace body top is provided with opening for feed and porthole, and the lower furnace body inner upper end is provided with stove beam and fire grate, and lower furnace body is outside to be provided with the fire grate drift stop with the fire grate correspondence position, and bottom, lower furnace body side is provided with gray-drawing port.
Stalk gasifier of the present utility model adopts said structure, and igniting is convenient and the time is short, sets up overheating steam chamber and annular preheating cavity, according to H 2O+C---CO+H 2Principle, make that combustible gas component increases greatly in the combustion gas, gas gasification efficient is higher, fuel gases calorific value is higher thereby make.Utilize filling pipe that the gasifying stalk furnace interior is added water, more convenient; The utility model integrated application " thermochemical processes ", " thermal engineering ", multi-disciplinary principles such as " chemical machinery manufacturings ", adopt atmospheric fixed bed biomass gasification technology, with stalk, corn cob, cotton stalk, beanstalk, the carbon containing agricultural product castoff of Pericarppium arachidis hypogaeae and so on is done raw material, superheated vapo(u)r and air are medium, rhombspar is a tar cracking catalyst, in stalk gasifier, burn under the anoxic condition, produce carbon monoxide, hydrogen, inflammable gass such as methane, under the effect of water ring vacuum pump, by cooling, dedusting, series of process equipment such as purification, the output higher-grade, highly purified inflammable gas is sent into gas storage equipment or combustion equipment uses; The use crane is reinforced, and working efficiency is higher; Adopt two-stage cooling decoking device, the better effects if of feasible cooling decoking; Use the water seal cut out to be communicated with, improved the security of air feed with gas-holder; The utility model is simple in structure, easy for installation, dependable performance, gas production rate is big, gas producing efficiency is high, purity is high, sufficient combustion, characteristics such as easy to operate, be easy to promote, can satisfy the use of rural households, accomplish making full use of of resource, more prevent environmental pollution.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of stalk gasifier;
Fig. 3 is the left view of Fig. 2.
Embodiment
As shown in Figure 1, a kind of stalk gasifier of the present utility model and straw fuel gas refining plant, comprise stalk gasifier 2, crane 1 is to the raw materials such as carbon containing agricultural product castoff of stalk gasifier 2 interpolation stalks, corn cob, cotton stalk, beanstalk, Pericarppium arachidis hypogaeae and so on, and stalk gasifier 2 is communicated with by pipeline successively with water spray fly-ash separator 3, one-level cooling decoking device 4, secondary cooling decoking device 5, water-ring vacuum pump 6, washing decoking device 7, air water separator 8, tar dust filter 9, water seal cut out 10 and gas-holder 25.
As shown in Figures 2 and 3, stalk gasifier 2 is made of upper furnace body 11 and lower furnace body 12, and upper furnace body 11 tops are provided with opening for feed 26 and porthole 13, can see the inner case of stalk gasifier 2 at any time by porthole 13; Corresponding position, opening for feed 26 top is provided with hopper 14, is provided with flame retardant coating 15 and flue 16 in the upper furnace body 11, and flue 16 adopts Cr 18Mn 8Ni 2Si 2N high temperature steel, more durable, longer service life, flue 16 tilt in inwardly from top to bottom and and flame retardant coating 15 between form annular preheating cavity 17, be provided with some inlet mouths 18 at flue 16 circumference, be provided with overheating steam chamber 19 between upper furnace body 11 lower inner wall and the flue 16, overheating steam chamber 19 is communicated with water spray fly-ash separator 3 by the air outlet 20 that is located at bottom, upper furnace body 11 side, upper furnace body 11 sides also are provided with the filling pipe 27 that is communicated with overheating steam chamber 19, lower furnace body 12 inner upper end are provided with stove beam 21 and fire grate 22, lower furnace body 12 outsides are provided with fire grate drift stop 23 with fire grate 22 correspondence positions, and bottom, lower furnace body 12 side is provided with gray-drawing port 24.
During work, crane 1 adds stalk by opening for feed 26 to stalk gasifier 2, corn cob, cotton stalk, beanstalk, the mixture of raw materials such as the carbon containing agricultural product castoff of Pericarppium arachidis hypogaeae and so on and dolomite fines, move down gradually, simultaneously filling pipe 26 is added water and enter overheating steam chamber 19, enter in the flue 16 through preheating cavity 17 and inlet mouth 18 then, the warm air that produces and the mixture of steam and raw material and dolomite fines meet, the concurrent biochemical reaction of burning, produce high-grade inflammable gas, be sent in the water spray fly-ash separator 3 by water-ring vacuum pump 6 sucking-offs, through rotation, dispersion also penetrates filtering layer, most dust and tar flow in the liquid sealing pipe with water along the bucket wall and are discharged in the circulating water pool from the ditch, few part dust and tar enter into one of combustion gas from the top that the one-level cooling removes tar device 4 and the secondary cooling removes in the tar device 5, utilize indirect heat transfer, the transfiguration speed change, principles such as rotation baffling, indirect decoking is carried out in combustion gas, cooling, purifying treatment, effect by water-ring vacuum pump 6 enters washing decoking device 7 then, through repeatedly baffling rotation, residual dust and tar are further handled, enter then in the air water separator 8, adopt the transfiguration speed change, eddy flow, principle such as be folded to, oil is carried out in combustion gas, water, three separation of gas, combustion gas enters in the tar dust filter 9 again, adopt and filter, eddy flow, principle such as be folded to, containing very, the combustible gas of pettiness dust and tar enters from top, top, through the transfiguration break-in, and need pass filtrate and further ash content in the combustion gas and tar be carried out purifying treatment, the high purity of coming out, the higher-grade combustion gas enters into water seal cut out 10 from top, top, and last combustion gas is stored in the gas-holder 25 by water seal cut out 10.

Claims (10)

1, a kind of stalk gasifier, comprise upper furnace body and lower furnace body, be provided with flame retardant coating and flue in the upper furnace body, it is characterized in that: flue slopes inwardly from top to bottom also and forms annular preheating cavity between the flame retardant coating, be provided with some inlet mouths at the flue circumference, the overheating steam chamber that the upper furnace body lower inner wall communicates with annular preheating cavity, overheating steam chamber also is provided with the air outlet outside body of heater.
2, a kind of stalk gasifier according to claim 1, it is characterized in that: described upper furnace body is provided with the filling pipe that is communicated with overheating steam chamber.
3, a kind of stalk gasifier according to claim 1 and 2 is characterized in that: described lower furnace body is outside to be provided with the fire grate drift stop with the fire grate correspondence position.
4, a kind of stalk gasifier according to claim 3 is characterized in that: described upper furnace body top is provided with opening for feed and porthole, and the lower furnace body inner upper end is provided with stove beam and fire grate, and bottom, lower furnace body side is provided with gray-drawing port.
5, a kind of straw fuel gas refining plant, comprise stalk gasifier as claimed in claim 1, it is characterized in that: described stalk gasifier is communicated with by pipeline successively with water spray fly-ash separator, cooling decoking device, water-ring vacuum pump, washing decoking device, air water separator, tar dust filter, water seal cut out and gas-holder.
6, a kind of straw fuel gas refining plant according to claim 5, it is characterized in that: described upper furnace body and the lower furnace body of comprising, be provided with flue in the upper furnace body, flue slopes inwardly from top to bottom also and forms annular preheating cavity between the flame retardant coating, be provided with some inlet mouths at the flue circumference, be provided with overheating steam chamber between upper furnace body lower inner wall and the flue with air outlet.
7, a kind of straw fuel gas refining plant according to claim 6, it is characterized in that: described stalk gasifier top is provided with hopper, and hopper is feeded to stalk gasifier by crane.
8, a kind of straw fuel gas refining plant according to claim 7 is characterized in that: described cooling decoking device is made up of one-level cooling decoking device and secondary cooling decoking device.
9, a kind of straw fuel gas refining plant according to claim 8, it is characterized in that: described upper furnace body is provided with the filling pipe that is communicated with overheating steam chamber.
10, a kind of straw fuel gas refining plant according to claim 9, it is characterized in that: described upper furnace body top is provided with opening for feed and porthole, the lower furnace body inner upper end is provided with stove beam and fire grate, lower furnace body is outside to be provided with the fire grate drift stop with the fire grate correspondence position, and bottom, lower furnace body side is provided with gray-drawing port.
CNU2008200694188U 2008-02-26 2008-02-26 Stalk gasification furnace and stalk gas purification apparatus Expired - Fee Related CN201201939Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008200694188U CN201201939Y (en) 2008-02-26 2008-02-26 Stalk gasification furnace and stalk gas purification apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008200694188U CN201201939Y (en) 2008-02-26 2008-02-26 Stalk gasification furnace and stalk gas purification apparatus

Publications (1)

Publication Number Publication Date
CN201201939Y true CN201201939Y (en) 2009-03-04

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CNU2008200694188U Expired - Fee Related CN201201939Y (en) 2008-02-26 2008-02-26 Stalk gasification furnace and stalk gas purification apparatus

Country Status (1)

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CN (1) CN201201939Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102260532A (en) * 2011-06-09 2011-11-30 宁波双翼能源科技有限公司 Production equipment for continuously preparing combustible gas by utilizing biomass fuel
CN102361962A (en) * 2009-03-05 2012-02-22 克朗斯股份公司 Method and device for utilizing straw-like biomass in a fixed bed gasification process
CN102653687A (en) * 2011-03-03 2012-09-05 天津大明恒运再生能源利用科技有限公司 Process for preparing high-purity combustible gas by utilizing biomass fuel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102361962A (en) * 2009-03-05 2012-02-22 克朗斯股份公司 Method and device for utilizing straw-like biomass in a fixed bed gasification process
CN102653687A (en) * 2011-03-03 2012-09-05 天津大明恒运再生能源利用科技有限公司 Process for preparing high-purity combustible gas by utilizing biomass fuel
CN102260532A (en) * 2011-06-09 2011-11-30 宁波双翼能源科技有限公司 Production equipment for continuously preparing combustible gas by utilizing biomass fuel

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C17 Cessation of patent right
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Granted publication date: 20090304

Termination date: 20100226