CN2451911Y - Composite biomass gasification furnace - Google Patents
Composite biomass gasification furnace Download PDFInfo
- Publication number
- CN2451911Y CN2451911Y CN 00241135 CN00241135U CN2451911Y CN 2451911 Y CN2451911 Y CN 2451911Y CN 00241135 CN00241135 CN 00241135 CN 00241135 U CN00241135 U CN 00241135U CN 2451911 Y CN2451911 Y CN 2451911Y
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- furnace
- biomass
- gasification furnace
- air inlet
- outlet
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Abstract
The utility model relates to crop waste disposal equipment, and also relates to combustible gas production equipment of solid carbon containing materials. A biomass retort furnace is arranged near a fixed bed down-draft gasification furnace, a connecting pipe is arranged between the outlet of the gasification furnace and the air inlet of the retort furnace, wherein, the retort furnace is composed of a furnace body, a grate, an air inlet, an air outlet, and an ash discharge port, the furnace cavity is divided with an upper and a lower furnace chambers by the grate, and the volume of the upper furnace chamber is 1 to 5 times of the volume of the lower furnace chamber. The utility model fully uses afterheat of high-temperature gas which is generated by the gasification furnace, pyrolysis and dry distillation to the biomass are carried out in the retort furnace, coke tar in the combustible gas is adsorbed and removed during the pyrolysis, the coke tar content is further reduced, and the heat conversion efficiency and the heat value of the combustible gas are improved.
Description
The utility model relates to the processing and utilizing technology of the discarded object of crops, also relates to the equipment by solid carbon-contg material production combustion gas.
The living beings gasification is to utilize gasification installation that living beings are burnt under anaerobic condition, makes most of combustible species be converted into fuel gas, uses for generating or cooking behind cooling and purifying.Difference according to combustion system, gasification installation has various ways, fixed bed downdraft gasification furnace the most commonly in the prior art, it has characteristics such as simple in structure, cheap, easy operation, be well suited for China's national situation, especially be fit to China rural area in order to handle agricultural waste material, for example straw, rice husk, branch, weeds etc.But because the structural restriction of this gasification furnace itself, its gasification efficiency and fuel gases calorific value are all on the low side, and the tar content in the combustion gas is higher.This combustion gas is unfavorable for storing and carrying, thereby has influenced the further utilization of this technology.A kind of follow-on biomass gasifying furnace is disclosed among the CN00101428.5, this stove has been preserved simple in structure, the characteristics such as cost is lower of fixed bed downdraft gasification furnace of the prior art, by the circuitous runner of the fuel gas flow of setting up, force fuel gas flow in runner, to walk or drive slowly, postpone the time of staying of air-flow in stove; And by catalytic bed is set, make cracking reaction comparatively abundant, help improving goudron lysis rate, gasification efficiency and fuel gases calorific value.But the temperature of gas outlet that experiment shows this gasification furnace still up to 500 ℃ about, high-temperature gas still will be taken away more sensible heat and latent heat, so its thermal energy conversion rate is the highest also can only reach about 80%.
The purpose of this utility model is, provides a kind of and can further improve thermal energy conversion efficiency and fuel gases calorific value, and can make tar content combined biomass vaporization furnace still less in the output combustion gas.
The purpose of this utility model realizes in the following manner.
Combined biomass vaporization furnace of the present utility model, include a fixed bed downdraft gasification furnace of the prior art, it is characterized in that, described fixed bed downdraft gasification furnace also be provided with a biomass carbonization stove nearby, be provided with connecting pipe between the air inlet of outlet of fixed bed downdraft fuel gas of gasifying furnace and gas retort; Described biomass carbonization stove is made up of body of heater, fire grate, air inlet/outlet and ash discharging hole, and its fire grate is divided into upper and lower burner hearth with furnace chamber, and the upper furnace volume is 1-5 a times of lower hearth volume, and air inlet is in lower hearth portion, and the gas outlet is in upper furnace portion.
Combined biomass vaporization furnace of the present utility model, simple in structure, the characteristics such as cost is lower of gasification furnace in the prior art have on the one hand been preserved, set up a biomass carbonization stove simple in structure simultaneously, make full use of the waste heat of the high-temperature gas of gasification furnace output, in gas retort, living beings are carried out pyrogenation and carbonization, make the organic partial thermal decomposition of volatile of living beings become fuel gas, living beings after the destructive distillation then become semicoke fully, this living beings that are the semicoke shape can adsorb the tar in the combustion gas and remove again, reduce tar content in the combustion gas.The structure of whole device is comparatively simple, and cost of manufacture is low, and technological process is reasonable.Compared with prior art, tar content has still less also further improved thermal energy conversion efficiency and fuel gases calorific value in the combustion gas of output.
Be further described below in conjunction with embodiment and accompanying drawing thereof.
Fig. 1 is a kind of embodiment overall structure schematic diagram of the utility model combined biomass vaporization furnace.
Referring to Fig. 1, (1) for being provided with the fixed bed downdraft gasification furnace of catalytic bed in the prior art, (2) are described biomass carbonization stove.(3) be the connecting pipe of two stoves.In the present embodiment, the overall dimensions of biomass carbonization stove is suitable with fixed bed downdraft gasification furnace.(4) be the fire grate of living beings gas retort.This fire grate is divided into two parts up and down with furnace chamber, and the bottom is about 1/3 of top.Its top is used to push away frees material, bottom memory lime-ash.(5) slag-drip opening.(6) be gas outlet.(7) be charging aperture.
Experiment shows, use the combined biomass vaporization furnace of this structure to handle agricultural waste material, compare with the thermal cracking catalytic reaction bed gasification furnace that is provided with of the prior art, the tar that is produced in the combustion gas can reduce more than 50%, its fuel gases calorific value improves more than 15%, and thermal energy conversion efficiency improves more than 10%.
Claims (2)
1. combined biomass vaporization furnace, include a fixed bed downdraft gasification furnace of the prior art, it is characterized in that, described fixed bed downdraft gasification furnace also be provided with a biomass carbonization stove nearby, be provided with connecting pipe between the air inlet of outlet of fixed bed downdraft fuel gas of gasifying furnace and gas retort; Described biomass carbonization stove is made up of body of heater, fire grate, air inlet/outlet and ash discharging hole, and its fire grate is divided into upper and lower burner hearth with furnace chamber, and air inlet is in lower hearth portion, and the gas outlet is in upper furnace portion.
2. combined biomass vaporization furnace as claimed in claim 1, the upper furnace volume that it is characterized in that described biomass carbonization stove are 1-5 times of lower hearth volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00241135 CN2451911Y (en) | 2000-11-22 | 2000-11-22 | Composite biomass gasification furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00241135 CN2451911Y (en) | 2000-11-22 | 2000-11-22 | Composite biomass gasification furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2451911Y true CN2451911Y (en) | 2001-10-03 |
Family
ID=33601660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00241135 Expired - Fee Related CN2451911Y (en) | 2000-11-22 | 2000-11-22 | Composite biomass gasification furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2451911Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102191084A (en) * | 2010-03-12 | 2011-09-21 | 张琥 | Straw gasification furnace and method for producing fuel gas by using same |
| CN102191067A (en) * | 2010-03-12 | 2011-09-21 | 韩璋鑫 | H-shaped carbonization furnace and method for producing biomass activated carbon and carbonized combustion gas by using same |
| CN106996564A (en) * | 2017-05-17 | 2017-08-01 | 广东英翔科技有限公司 | A kind of biomass pyrogenation gasification stove of star-like combining structure |
-
2000
- 2000-11-22 CN CN 00241135 patent/CN2451911Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102191084A (en) * | 2010-03-12 | 2011-09-21 | 张琥 | Straw gasification furnace and method for producing fuel gas by using same |
| CN102191067A (en) * | 2010-03-12 | 2011-09-21 | 韩璋鑫 | H-shaped carbonization furnace and method for producing biomass activated carbon and carbonized combustion gas by using same |
| CN102191067B (en) * | 2010-03-12 | 2014-07-09 | 韩璋鑫 | H-shaped carbonization furnace and method for producing biomass activated carbon and carbonized combustion gas by using same |
| CN106996564A (en) * | 2017-05-17 | 2017-08-01 | 广东英翔科技有限公司 | A kind of biomass pyrogenation gasification stove of star-like combining structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |