CN202912917U - Graded pyrolyzing gasifier of domestic garbage coupled fluidized bed - Google Patents
Graded pyrolyzing gasifier of domestic garbage coupled fluidized bed Download PDFInfo
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- CN202912917U CN202912917U CN 201220525246 CN201220525246U CN202912917U CN 202912917 U CN202912917 U CN 202912917U CN 201220525246 CN201220525246 CN 201220525246 CN 201220525246 U CN201220525246 U CN 201220525246U CN 202912917 U CN202912917 U CN 202912917U
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Abstract
The utility model provides a graded pyrolyzing gasifier of a domestic garbage coupled fluidized bed, which comprises a deferrization grinder, a sleeve type rotary drum dryer, a coupled fluidized bed, a gas distributor, an ash discharging pipe, an air intake pipe, a feed opening, a primary gas-solid separator, a coarse ash circulating refeed pipe, a refeed device, a secondary gas-solid separator, a fine ash circulating refeed pipe, an entrained bed and a fuel gas outlet, wherein the deferrization grinder and the sleeve type rotary drum dryer are sequentially arranged at the front end of the coupled fluidized bed, the gas distributor and the ash discharging pipe are arranged at the bottom of the coupled fluidized bed, the entrained bed is arranged in a position which is 1,000 to 2,000 mm far away from the bottom of the coupled fluidized bed, the feed opening is formed in the position which is 500 to 3000 mm far away from the entrained bed, the primary gas-solid separator and the secondary gas-solid separator are arranged at the top; the coarse ash circulating refeed pipe of the primary gas-solid separator is connected with the bottom of the coupled fluidized bed through the refeed device, and the fine ash circulating refeed pipe of the secondary gas-solid separator is connected with the entrained bed.
Description
1. technical field
The utility model provides domestic refuse coupling fluidized bed classification pyrolytic gasification stove, belongs to the environmental protection equipment field.
2. background technology
The processing mode of countries in the world municipal wastes mainly contains classification recovery, landfill, compost and burning, cracking and gasification at present.Landfill disposal need take a large amount of soils.Simultaneously, oxious component also can cause severe contamination to atmosphere, soil and water source in the rubbish, not only destroys ecotope, also the serious harm HUMAN HEALTH; Compost treatment will sort, classify rubbish, requires the organic content of rubbish higher.And compost treatment can not minimizing, still need take a large amount of soils.
The essence of burning is that organic waste is oxidized to inertia gaseous state thing and inorganic noncombustibles under the condition of high temperature and oxygen supply abundance, to form stable solid residue.At first rubbish is placed in the incinerator and burns, discharge heat energy, but then waste heat recovery heat supply or generating.Discharge a small amount of residual residue discharge, landfill or make other purposes after the gas cleaning.Its advantage is to subtract rapidly the appearance ability and high temperature is innoxious thoroughly, floor space is little, and energy recovery is arranged but because the existence of oxygen, chlorinated organics unavoidably will produce the violent in toxicity dioxin that is difficult to decompose in the rubbish, becomes the bottleneck that the restriction waste incineration is used.
The domestic refuse cracking is technology newly developed in recent years, and high to the waste resources utilization ratio, Wu the generation of dioxin, but the oil product complicated component utilizes difficulty large, and produces reluctant phenol water, is difficult to realize scale operation take bed technology as the master in addition; Domestic garbage gasification generates few to the high ， dioxin of waste resources utilization ratio, but gas heating value is low, need to remove tar, utilize difficulty large, is difficult to realize scale operation take bed technology as the master at present.
In the face of the garbage-surrounded city phenomenon, be badly in need of exploitation and can eliminate the secondary pollution of dioxin, flying dust and peculiar smell, can rationally utilize clean energy technology of garbage disposal and the equipment of waste resources energy again.
3. summary of the invention
The purpose of this utility model is exactly to provide one way of life rubbish coupling fluidized bed classification pyrolytic gasification stove for the deficiency that overcomes the existence of conventional garbage treatment facility technology, both solved the flying dust difficult problem of fluidized-bed gasification, eliminate dioxin and peculiar smell from the source, rationally utilized again heat energy, obtain the combustion gas that height contains methane, do not contain tar in the simultaneously combustion gas, do not produce phenol water.
The technical solution of the utility model:
The coupling fluidized bed classification pyrolytic gasification stove of domestic refuse, by the deferrization pulverizer, the telescoping roller drying machine, coupling fluidized bed, gas distributor, ash releasing tube, inlet pipe, opening for feed, the one-level gas-solid separator, cinder circulation revert pipe, material returning device, the secondary gas-solid separator, thin grey circulation revert pipe, air flow bed, gas outlet forms, it is characterized in that coupling fluidized bed front end is provided with deferrization pulverizer and telescoping roller drying machine successively, coupling fluidized bed bottom is provided with gas distributor and ash releasing tube, position apart from bottom 1000-2000mm is provided with air flow bed, position apart from air flow bed 500-3000mm is provided with opening for feed, and the top is provided with one-level gas-solid separator and secondary gas-solid separator; The coarse particles ash circulation revert pipe of one-level gas-solid separator links to each other with coupling fluidized bed bottom by material returning device; the fine particle ash circulation revert pipe of secondary gas-solid separator links to each other with air flow bed by material returning device; second stage gas-solid separator is connected with gas outlet; eliminate the secondary pollution of dioxin, flying dust and peculiar smell from the source, the height of getting back contains the combustion gas of methane.
Coupling fluidized bed is that the turbulent fluidized bed equivalent diameter is larger by the carrying reactor and carry the air flow bed that reactor lower part Y type is communicated with and combine of the turbulent fluidized bed of bottom and top, and it is less to carry the reactor equivalent diameter, and diameter ratio is 2～3: 1; Carrying the straight tube reactor that reactor both can be the equivalent diameter homogeneous, also can be to be that the big or small straight tube of different equivalent diameter multiples is formed by connecting by the concentric reducer pipe fitting by diameter, and the diameter ratio of big or small straight tube is 1.2～2: 1
The air flow bed equivalent diameter only is the 10%-30% of turbulent fluidized bed equivalent diameter.
The utility model is described in detail characteristics of the present utility model with embodiment.
4. description of drawings
Accompanying drawing Fig. 1 is the structural representation of the coupling fluidized bed classification pyrolytic gasification stove of the utility model domestic refuse.
The drawing of accompanying drawing is established bright as follows:
1, coupling fluidized bed 2, gas distributor 3, inlet pipe 4. ash releasing tubes 5, domestic refuse opening for feed 6, one-level gas-solid separator 7, cinder circulation revert pipe 8, material returning device 9, secondary gas-solid separator 10, thin grey circulation revert pipe 11, air flow bed 12, gas outlet 13, turbulent fluidized bed 14, carry reactor 15, deferrization pulverizer 16, telescoping roller drying machine
Below in conjunction with drawings and Examples in detail process characteristic of the present utility model is described in detail.
5. embodiment
The coupling fluidized bed classification pyrolytic gasification stove of domestic refuse is by deferrization pulverizer (15), telescoping roller drying machine (16), coupling fluidized bed (1), gas distributor (2), inlet pipe (3), ash releasing tube (4), fine coal opening for feed (5), one-level gas-solid separator (6), cinder circulation revert pipe (7), material returning device (8), secondary gas-solid separator (9), thin grey circulation revert pipe (10), air flow bed (11), gas outlet (12) forms, the front end that it is characterized in that coupling fluidized bed (1) is provided with deferrization pulverizer (15) and telescoping roller drying machine (16) successively, coupling fluidized bed (1) bottom is provided with gas distributor (2), inlet pipe (3) and ash releasing tube (4), be provided with inlet pipe (3) below the gas distributor (2), ash releasing tube (4) is arranged in center or the Triangle-Profile of gas distributor (2); Be provided with the air flow bed (11) that the Y type is communicated with apart from the position of carrying reactor lower part 100-2000mm, position at air flow bed (11) top 500-3000mm is provided with domestic refuse opening for feed (5), and the top is provided with one-level gas-solid separator (6) and secondary gas-solid separator (9); The cinder circulation revert pipe (7) of one-level gas-solid separator (6) links to each other with combined cyclic fluidized-bed (1) bottom by material returning device (8), and the thin grey circulation revert pipe (10) of secondary gas-solid separator (9) links to each other with air flow bed (11) by material returning device (8); Secondary gas-solid separator (9) connects gas outlet (12).
Coupling fluidized bed (1) is carrying reactor (14) and carrying the air flow bed (11) that reactor (14) bottom Y type is communicated with and combine by the turbulent fluidized bed (13) of bottom and top, turbulent fluidized bed (13) equivalent diameter is larger, it is less to carry reactor (14) equivalent diameter, and its equivalent diameter ratio is 2～3: 1; Carrying the straight tube reactor that reactor (14) both can be the equivalent diameter homogeneous, also can be to be that the big or small straight tube of different equivalent diameter multiples is formed by connecting by the concentric reducer pipe fitting by diameter, and the diameter ratio of big or small straight tube is 1.2～2: 1.
Air flow bed (11) equivalent diameter only is the 10%-30% of turbulent fluidized bed (13) equivalent diameter.
During concrete operation, domestic refuse is pulverized by deferrization pulverizer (15) deferrization first, then the granulated garbage of 0～6mm is dried by telescoping roller drying machine (16), the water vapour hotwork that contains peculiar smell that produces is the part of vaporized chemical, hot granulated garbage and a small amount of thermal barrier are sent into bed bioreactor (14) middle and lower part of carrying of coupling fluidized bed (1) and are mixed the lifting that makes progress with gasification gas and circulating ash and face the hydrogen pyrolysis, through the two-stage gas solid separation, the thick semicoke of high temperature that first step gas-solid separator (6) separates returns the turbulent fluidized bed (13) of coupling fluidized bed (1) bottom by material returning device (8), the reaction under 800～1100 ℃ with oxygenant and water vapour, generate gasification gas, upwards flowing with circulating ash forms Matter Transfer; The high-temperature fine semicoke that second stage gas-solid separator (9) separates is delivered to the air flow bed (11) that is communicated with coupling fluidized bed (1) middle and lower part Y type by material returning device (8), tangent line enters air flow bed (11) 1200～1600 ℃ of lower reactions under the carrying of water vapour and oxygenant, the High Temperature Gas that generates and liquid lime-ash be the oblique lower effluent gases fluidized bed of eddy flow (11) in the same way, High Temperature Gas enters coupling fluidized bed (1) to rising, for fluidized-bed gasification provides heat; Liquid lime-ash flows to the circulating ash bed of material of turbulent fluidized bed (13) downwards, and heat exchange is solidified as the solid lime-ash, discharges with solid materials participation circulation or the ash discharge of coupling fluidized bed (1); The combustion gas that second stage gas-solid separator (9) is told had both solved the flying dust difficult problem of fluidized-bed gasification as the outer confession of gas product, eliminated dioxin and peculiar smell from the source, and the height of getting back contains the combustion gas of methane.
The coupling fluidized bed classification pyrolytic gasification stove of domestic refuse provided by the utility model, both rationally utilized the tar of heat energy, elimination gasification, solved the flying dust difficult problem of fluidized-bed gasification, eliminate dioxin and peculiar smell from the source, obtain the combustion gas that height contains methane, do not contain tar in the simultaneously combustion gas, do not produce phenol water; The oxygen consumption is low, gasification efficiency is high, and gasification intensity is large, and equipment volume is little, and steel consumption is low, and fixed investment reduces greatly, and the ash discharge process is simple.
Claims (3)
1. the coupling fluidized bed classification pyrolytic gasification stove of domestic refuse, by the deferrization pulverizer, the telescoping roller drying machine, coupling fluidized bed, gas distributor, ash releasing tube, inlet pipe, opening for feed, the one-level gas-solid separator, cinder circulation revert pipe, material returning device, the secondary gas-solid separator, thin grey circulation revert pipe, air flow bed, gas outlet forms, it is characterized in that coupling fluidized bed front end is provided with deferrization pulverizer and telescoping roller drying machine successively, coupling fluidized bed bottom is provided with gas distributor and ash releasing tube, position apart from bottom 1000-2000mm is provided with air flow bed, position apart from air flow bed 500-3000mm is provided with opening for feed, and the top is provided with one-level gas-solid separator and secondary gas-solid separator; The coarse particles ash circulation revert pipe of one-level gas-solid separator links to each other with coupling fluidized bed bottom by material returning device, and the fine particle ash circulation revert pipe of secondary gas-solid separator links to each other with air flow bed by material returning device, and second stage gas-solid separator is connected with gas outlet.
2. carry according to claim 1 the coupling fluidized bed classification pyrolytic gasification stove of the domestic refuse of stating, it is characterized in that coupling fluidized bed is carrying reactor and carrying the air flow bed that reactor lower part Y type is communicated with and combine by the turbulent fluidized bed of bottom and top, the turbulent fluidized bed equivalent diameter is larger, it is less to carry the reactor equivalent diameter, and diameter ratio is 2～3: 1; Carrying the straight tube reactor that reactor both can be the equivalent diameter homogeneous, also can be to be that the big or small straight tube of different equivalent diameter multiples is formed by connecting by the concentric reducer pipe fitting by diameter, and the diameter ratio of big or small straight tube is 1.2～2: 1.
3. carry according to claim 1 the coupling fluidized bed classification pyrolytic gasification stove of the domestic refuse of stating, it is characterized in that the air flow bed equivalent diameter only is the 10%-30% of turbulent fluidized bed equivalent diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220525246 CN202912917U (en) | 2012-10-11 | 2012-10-11 | Graded pyrolyzing gasifier of domestic garbage coupled fluidized bed |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220525246 CN202912917U (en) | 2012-10-11 | 2012-10-11 | Graded pyrolyzing gasifier of domestic garbage coupled fluidized bed |
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| CN202912917U true CN202912917U (en) | 2013-05-01 |
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| CN 201220525246 Expired - Lifetime CN202912917U (en) | 2012-10-11 | 2012-10-11 | Graded pyrolyzing gasifier of domestic garbage coupled fluidized bed |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102977929A (en) * | 2012-10-11 | 2013-03-20 | 田原宇 | Household garbage coupling fluidized bed hierarchical pyrolytic gasifier |
| CN104567280A (en) * | 2014-12-29 | 2015-04-29 | 中国华电集团科学技术研究总院有限公司 | Entrained-flow bed and fluidized bed coupled lignite drying device and entrained-flow bed and fluidized bed coupled lignite drying method |
| CN107227175A (en) * | 2016-03-24 | 2017-10-03 | 通用电气公司 | System And Method For Gasification |
| CN112664948A (en) * | 2020-12-23 | 2021-04-16 | 华中科技大学 | Nitrogen non-transferred arc plasma ship solid waste heat treatment method and system |
-
2012
- 2012-10-11 CN CN 201220525246 patent/CN202912917U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102977929A (en) * | 2012-10-11 | 2013-03-20 | 田原宇 | Household garbage coupling fluidized bed hierarchical pyrolytic gasifier |
| CN102977929B (en) * | 2012-10-11 | 2014-05-07 | 田原宇 | Household garbage coupling fluidized bed hierarchical pyrolytic gasifier |
| CN104567280A (en) * | 2014-12-29 | 2015-04-29 | 中国华电集团科学技术研究总院有限公司 | Entrained-flow bed and fluidized bed coupled lignite drying device and entrained-flow bed and fluidized bed coupled lignite drying method |
| CN107227175A (en) * | 2016-03-24 | 2017-10-03 | 通用电气公司 | System And Method For Gasification |
| CN112664948A (en) * | 2020-12-23 | 2021-04-16 | 华中科技大学 | Nitrogen non-transferred arc plasma ship solid waste heat treatment method and system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Beijing news dtel Technology Co.,Ltd. Assignor: Tian Yuanyu Contract record no.: 2013110000050 Denomination of utility model: Household garbage coupling fluidized bed hierarchical pyrolytic gasifier Granted publication date: 20130501 License type: Exclusive License Record date: 20131009 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130501 |
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| CX01 | Expiry of patent term |