CN102580447B - Dry purification system for agriculture and forest biomass gasified gas - Google Patents
Dry purification system for agriculture and forest biomass gasified gas Download PDFInfo
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- CN102580447B CN102580447B CN201210078964.9A CN201210078964A CN102580447B CN 102580447 B CN102580447 B CN 102580447B CN 201210078964 A CN201210078964 A CN 201210078964A CN 102580447 B CN102580447 B CN 102580447B
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
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Abstract
The invention discloses a dry purification system for agriculture and forest biomass gasified combustible gas. The dry purification system is characterized by comprising a dust and coke removing system, a condensation and separation system, a purification and drying system and a tar moisture collecting and separation system, wherein a fine powder separator in the dust and coke removing system is connected with a centrifugal dust and coke removing machine through a middle electric valve; the condensation and separation system is formed by serially connecting two stages of efficient condensers; a draught fan is arranged between the condensation and separation system and the purification and drying system; the purification and drying system is connected together with a dryer through a purification tower; and the tar moisture collecting and separation system is used for separating collected tar and water through two helixes. The invention has the advantages that: the dry purification system is used for substituting the existing wet purification system, so that a large quantity of extract is not produced, and the environment is not polluted. Through the dry purification system, clean combustible gas is finally obtained; and the system meets the requirement of an internal-combustion engine for gas and the requirement of a boiler for gas supply, and is scientific and reasonable in composition.
Description
Technical field
What the present invention relates to is a kind of dry cleaning system for agricultural-forestry biomass gasification gas, belongs to Thermal Power Engineering and field of chemical engineering.
Background technology
Current for agricultural-forestry biomass gasification gas cleaning system, in system applies, there is two large problems: in the gas that one, in existing Separate System of Water-jet, cyclonic separation was processed, containing a large amount of fine dusts affects the quality of tar and extract below.Two, existing gas-liquid separation adopts wet separation system, has produced a large amount of extracts, and the application of extract is not yet generally promoted at present, causes the extract producing to cause secondary pollution.
Summary of the invention
The present invention proposes a kind of dry cleaning system for agricultural-forestry biomass gasification gas, be intended to overcome the above-mentioned defect that prior art exists.With dry cleaning system, substitute existing system for wet purification, meet air feed and purify requirement, realize the separated of pollution-free tar and water.
Technical solution of the present invention: its feature comprises dedusting decoking system, condensate separation system, purge drying system, tar-water collection piece-rate system, pulverized-coal collector in dedusting decoking system is connected with centrifugal dust-removing coke knocker by middle motor-driven valve, condensate separation system is connected by two-stage efficient condenser, air-introduced machine is placed between condensate separation system and purge drying system, purge drying system links together by purifying column and drier, and it is by two spirals, the tar of collecting is separated with water that tar-water is collected piece-rate system.
Advantage of the present invention: system forms science, reasonable.With this dry cleaning system, can replace existing system for wet purification, (existing system for wet purification produces a large amount of extracts not produce a large amount of extracts, the application of extract is not yet generally promoted at present), this dry cleaning system finally obtains clean combustible gas, reach internal combustion engine combustion gas requirement and boiler air supply requirement, environment is not produced to pollution.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation for the dry cleaning system of agricultural-forestry biomass gasification gas.
Accompanying drawing 2 is structural representations of segmentation separator.
Accompanying drawing 3 is structural representations of dedusting coke knocker.
Accompanying drawing 4 is structural representations of drier.
In accompanying drawing 1,1 is segmentation separator, the 2nd, motor-driven valve, the 3rd, centrifugal dust-removing coke knocker, the 4th, A efficient condenser, the 5th, B efficient condenser, the 6th, air-introduced machine, the 7th, purifying column, the 8th, drier, the 9th, Jiao Shui collects separated spiral, the 10th, air accumulator, the 11st, cooling tower, the 12nd, cooling pond, the 13rd, tar pool, the 14th, burnt pond, the 15th, circulating pump, the 16th, guide vane, the 17th, flight, the 18th, gas access, the 19th, housing, the 20th, high strength filter core, the 21st, motor, the 22nd, bearing block, the 23rd, gas vent, the 24th, turning cylinder, the 25th, excessive cover.
The specific embodiment
The structure of described dedusting decoking system is comprised of apparatus for separating fine powder from coarst powder 1, motor-driven valve 2, centrifugal dust-removing coke knocker 3, the combustible gas outlet that gasification furnace produces is connected with apparatus for separating fine powder from coarst powder 1 entrance, apparatus for separating fine powder from coarst powder 1 is connected with centrifugal dust-removing coke knocker 3 by motor-driven valve 2, apparatus for separating fine powder from coarst powder 1 bottom enters out charcoal spiral, and centrifugal dust-removing coke knocker 3 bottoms enter tar-water gathering screw 9.
The structure of described condensate separation system is comprised of A efficient condenser 4, B efficient condenser 5, water pump 15, water tank 12, cooling tower 11, A efficient condenser 4 is connected in series with B efficient condenser 5, the bottom of A efficient condenser 4, B efficient condenser 5 enters tar-water gathering screw 9, cooling water is sent into A efficient condenser 4, B efficient condenser 5 by water pump 15, A efficient condenser 4 delivery port one end enter cooling tower 11, the other end of efficient condenser 4 delivery ports enters the cold charcoal spiral of gasification furnace, and the water by cooling tower 11 goes back to cooling pond 12.
Described purge drying system is composed in series by clarifier 7 and drier 8, the lower port access tar-water gathering screw 9 of drier 8.
Described tar-water is collected piece-rate system by a vertical helical and a tar-water gathering screw 9 that horizontal spiral forms, and the bottom of tar-water gathering screw 9 is accessed respectively and tar collecting pit 13 and moisture content collecting pit 14.
During work, combustible gas enters pulverized-coal collector 1(and isolates most of thickness powder), by motor-driven valve 2, enter in dedusting coke knocker 3 and (isolate fine powder residual in air-flow and heavy tar), by dedusting coke knocker 3 gas out, enter A efficient condenser 4, B efficient condenser 5 by cooling part tar and the moisture content of going out of combustible gas simultaneously, by B efficient condenser 5 combustible gas out, by air exhauster 6, enter purifying column 7 and drier 8, remove tar light oil and moisture content in combustible gas, last air-flow enters gas tank 10, completes purification process.The tar of being discharged by dedusting coke knocker 3, A efficient condenser 4, B efficient condenser 5, purifying column 7, drier 8 bottoms is realized the separated of tar and moisture content with moisture content by a horizontal spiral and longitudinal spiral, the cooling water of A efficient condenser 4, B efficient condenser 5 is by the water from cooling pond is injected into A efficient condenser 4, B efficient condenser 5 by water pump 15, A efficient condenser 4 water outlet one end enter the cold charcoal screw cool of gasification furnace charcoal spiral, the other end of A efficient condenser 4 water outlets passes back into cooling pond 12 after entering cooling tower 11, realizes cool cycles.
Contrast accompanying drawing 2, apparatus for separating fine powder from coarst powder, first gas realize crude separation through a cyclonic separation, then by the guide vane 16 in apparatus for separating fine powder from coarst powder, flight 17 realize subdivision from.
Claims (2)
1. for the dry cleaning system of agricultural-forestry biomass gasification combustible gas, it is characterized in that comprising dedusting decoking system, condensate separation system, purge drying system, tar-water is collected piece-rate system, wherein the pulverized-coal collector in dedusting decoking system is connected with centrifugal dust-removing coke knocker by middle motor-driven valve, condensate separation system is connected by two-stage efficient condenser, air-introduced machine is placed between condensate separation system and purge drying system, purge drying system links together by purifying column and drier, it is by two spirals, the tar of collecting is separated with water that tar-water is collected piece-rate system, the structure of described dedusting decoking system is comprised of pulverized-coal collector, motor-driven valve, centrifugal dust-removing coke knocker, the combustible gas outlet that gasification furnace produces is connected with pulverized-coal collector entrance, pulverized-coal collector is connected with centrifugal dust-removing coke knocker by motor-driven valve, charcoal spiral is accessed out in pulverized-coal collector bottom, centrifugal dust-removing coke knocker bottom access tar-water gathering screw, the structure of described condensate separation system is comprised of A efficient condenser, B efficient condenser, water pump, water tank, cooling tower, A efficient condenser and B efficient condenser are connected in series, the bottom of A efficient condenser, B efficient condenser enters tar-water gathering screw, cooling water is sent into A efficient condenser, B efficient condenser by water pump, A efficient condenser delivery port one end enters cooling tower, the other end of A efficient condenser delivery port enters the cold charcoal spiral of gasification furnace, by the water recovery tank of cooling tower, described purge drying system is composed in series by clarifier and drier, the lower port access tar-water gathering screw of drier, described tar-water is collected piece-rate system and is realized the separated of tar and moisture content by the tar-water gathering screw consisting of with a horizontal spiral a vertical helical, and tar collecting pit, moisture content collecting pit are accessed respectively in the bottom of tar-water gathering screw, described pulverized-coal collector, first gas realize crude separation through a cyclonic separation, then by the guide vane in pulverized-coal collector, flight realize subdivision from, described drier forms by polylith three setback plates are folding.
2. the dry cleaning system for agricultural-forestry biomass gasification combustible gas according to claim 1, it is characterized in that described centrifugal dust-removing coke knocker be combustible gas from outside by the filter core of High Rotation Speed, the combustible gas purifying is sent from filter core inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210078964.9A CN102580447B (en) | 2012-03-23 | 2012-03-23 | Dry purification system for agriculture and forest biomass gasified gas |
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| CN201210078964.9A CN102580447B (en) | 2012-03-23 | 2012-03-23 | Dry purification system for agriculture and forest biomass gasified gas |
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| CN102580447A CN102580447A (en) | 2012-07-18 |
| CN102580447B true CN102580447B (en) | 2014-04-02 |
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| CN104927884B (en) * | 2015-05-26 | 2017-09-08 | 张文虎 | A kind of device and method thereof of waste material preparing combustible gas by catalytic cracking |
| CN105536435B (en) * | 2015-12-25 | 2018-02-06 | 河北诚信九天医药化工有限公司 | A kind of malonate production device for recovering tail gas and recovery method |
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| CN201648346U (en) * | 2010-02-04 | 2010-11-24 | 胡胜利 | Dry biomass gas purifying and supplying unit utilizing waste heat |
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Application publication date: 20120718 Assignee: Xinghua Rong Bao Oil Co., Ltd. Assignor: Nanjing Forestry University Contract record no.: 2018320000145 Denomination of invention: Dry purification system for agriculture and forest biomass gasified gas Granted publication date: 20140402 License type: Common License Record date: 20180817 |
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Application publication date: 20120718 Assignee: Chengde Hua Hua Activated Carbon Co., Ltd. Assignor: Nanjing Forestry University Contract record no.: 2019320000084 Denomination of invention: Dry purification system for agriculture and forest biomass gasified gas Granted publication date: 20140402 License type: Common License Record date: 20190327 |
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