CN203095999U - Pulverized coal gas producer - Google Patents
Pulverized coal gas producer Download PDFInfo
- Publication number
- CN203095999U CN203095999U CN 201220632277 CN201220632277U CN203095999U CN 203095999 U CN203095999 U CN 203095999U CN 201220632277 CN201220632277 CN 201220632277 CN 201220632277 U CN201220632277 U CN 201220632277U CN 203095999 U CN203095999 U CN 203095999U
- Authority
- CN
- China
- Prior art keywords
- gas generator
- producer gas
- coal gas
- coal dust
- coal
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a pulverized coal gas producer. The pulverized coal gas producer is composed of a pulverized coal burner and a coal gas producer, wherein the pulverized coal burner is mounted at the top of the coal gas producer, a cooling water inlet is mounted at the upper part of the coal gas producer and connected with a water wall on the inner side of the producer hearth, a steam inlet is formed at the middle part of the coal gas producer and connected with a steam spray ring in the hearth, a coal gas outlet is formed at the lower part of the coal gas producer, a cooling water outlet and a slag discharging port are mounted at the bottom of the coal gas producer, and the slag discharging port is connected with an ash unloading valve. The pulverized coal gas producer has the advantages that in the hearth, the diameter of flame is large, reaction temperature is high, and pulverized coal and gas come into contact in a large area and are mixed fully; gasification speed is high; energy is saved; the efficiency of the gas producer is improved; and harmful gas emission is effectively reduced.
Description
Technical field
The utility model relates to gazogene, particularly relates to a kind of coal dust producer gas generator that directly coal dust and water vapor is converted to producer gas by burner and furnace binding.
Background technology
At present, traditional gazogene still uses block raw material as gasified raw material, and gasification intensity is low, and is seriously polluted, the coal gas that is generated belongs to coal gas low, middle calorific value.The gazogene that some are modern because the requirement of production technique, the required burning furnace temperature that reaches is very high, reaction zone pressure is very high, therefore to body of heater making aspect require highly, and investment is bigger.Under the common requirement of scientific technological advance and market economy, the economic environment-friendly coal gas producer device that can produce a large amount of clean gas is just ready to appear.
Summary of the invention
The utility model is the deficiency that exists at existing gazogene, and a kind of gasification intensity height, waste heat recovery rate height, economic environmental protection, coal dust producer gas generator simple in structure are provided.
Realize that the technical scheme that above-mentioned purpose adopts is: a kind of coal dust producer gas generator, comprise coal burner, producer gas generator, coal burner is equipped with at described producer gas generator top, entrance of cooling water is equipped with on top, entrance of cooling water links to each other with the water wall of burner hearth inboard, steam entry is equipped with at the producer gas generator middle part, steam entry links to each other with the water vapor spray ring of burner hearth inside, gas exit is equipped with in the producer gas generator bottom, cooling water outlet and slag-drip opening are equipped with in the producer gas generator bottom, and slag-drip opening links to each other with unloading valve.
As preferred version, coal burner is equipped with at described coal dust producer gas generator top.
As preferred version, the furnace diameter of described coal dust producer gas generator is big, is φ 5000, and the furnace wall is the water wall of being made up of the seamless tube of 80 φ 51 wall thickness 4.
As preferred version, water vapor spray ring is equipped with at the burner hearth of described coal dust producer gas generator middle part, on the spray ring 80 uniform nozzles is housed, and 80 steam spray nozzles are made by φ 6 stainless steel tubes, and material is a 06Cr25Ni20 high temperature steel.
Compared with prior art, the utility model is designed to vertical structure with coal burner and producer gas generator disjunctor, and simple in structure, floor space is little.The coal burner combustion air is a pure oxygen, takes the contain CO of coal wind for reclaiming from other industrial furnaces
2High flue gas, combustion air can only make 60% coal dust fully burn, and other coal dusts are reductive agent.60% coal dust firing provides sufficient amount of heat for the reduction reaction that takes place at the burner hearth middle part.Be provided with water vapor spray ring at the burner hearth middle part, water vapor spray ring is gone up uniform 80 nozzles, and each nozzle becomes 26 ° of angles with axis, make the water vapor of ejection be tangential on flame diameter, and flame diameter is φ 1200, at water vapor spray ring position place, H
2O, CO
2With C reduction reaction takes place, temperature of reaction is 1100 ℃ to 1500 ℃, and pressure is 0.05MPa.Because the reaction conditions that the utility model provides is reasonable, the reduction coal dust mixes fully with the gas that participates in gasification, and contact area is big, so gasification rate is fast, and the gasification intensity height.The utility model, save energy improves the efficient of producer gas generator, and reduces discharge of harmful gases.
Description of drawings
Fig. 1 is the utility model one-piece construction synoptic diagram.
Fig. 2 is the utility model A-A cross-sectional view.
Fig. 3 is the utility model B-B cross-sectional view.
Fig. 4 is the utility model C-C cross-sectional view.
Among the figure: coal burner 1, producer gas generator 2, entrance of cooling water 3, water wall 4, water vapor import 5, water vapor spray ring 6, cooling water outlet 7, electronic unloading valve 8, basis 9, gas exit 10, fire brick layer 11, insulating brick-layer 12, insulating cotton layer 13, outer alclad sheet 14, water coolant upper collecting chamber 15, water coolant next part case 16, steam spray nozzle 17.
Embodiment
Below in conjunction with drawings and Examples the utility model is described further.
Present embodiment is a kind of coal dust producer gas generator, is made up of coal burner and producer gas generator, is to be that fuel provides heat with the coal dust, the CO that impels coal dust firing to generate
2, take the CO in the coal wind
2With unburned coal dust (C), water vapor (H
2O) reduction reaction takes place, (main component is CO and H to generate coal gas
2) a kind of producer gas generator, its structure is seen accompanying drawing 1-4.
See accompanying drawing 1-3, coal burner 1 is positioned at the top of producer gas generator 2, producer gas generator 2 is made up of water wall 4, fire brick layer 11, insulating brick-layer 12, insulating cotton layer 13 and outer alclad sheet 14 from inside to outside successively, wherein water wall 4 tops connect water coolant upper collecting chamber 15, the bottom connects water coolant next part case 16, the entrance of cooling water 3 that connects water coolant upper collecting chamber 15 is positioned at the top of producer gas generator 2, and the cooling water outlet 7 that connects water coolant next part case 16 is positioned at the below of producer gas generator 2.Wherein water coolant upper collecting chamber 15 is φ 273 wall thickness 5 stainless steel tubes, and material is 304 stainless steels.
See accompanying drawing 4, producer gas generator 2 burner hearths middle part is provided with water vapor spray ring 6, and water vapor spray ring 6 is clipped between fire brick layer 11 and the water wall 4, and the steam spray nozzle 17 that distributes on the water vapor spray ring 6 becomes 26 ° of angles tiltedly to stretch between per two water wall tubes with axis.Wherein water vapor spray ring 6 is made by the stainless steel tube of φ 89 wall thickness 4.5, and material is 304 stainless steels; 80 steam spray nozzles 17 are made by φ 6 stainless steel tubes, and material is a 06Cr25Ni20 high temperature steel.
Principle of work of the present utility model is:
Coal dust is along with taking coal wind (high CO
2Flue gas) via coal burner 1 coal dust that sprays into producer gas generator 2,60% and the pure oxygen (O that sprays into by coal burner 1
2) fully burning, producing a large amount of high-temperature flue gas, flue-gas temperature is up to 1700 ℃, and high-temperature flue gas provides enough heats for the reduction reaction that takes place in the producer gas generator 2, and the main chemical reactions that is taken place in the producer gas generator 2 is as follows:
C+O
2＝CO
2.............................................(1)
C+CO
2＝2CO.............................................(2)
C+H
2O＝CO+H
2..........................................(3)
Wherein 60% coal dust and pure oxygen (O
2) fully burning, the reaction in the above-mentioned reaction formula (1) takes place, the high temperature CO that is generated
2With 40% coal dust of surplus reaction in the above-mentioned reaction formula (2) takes place, water vapor spray ring that producer gas generator 2 middle parts are provided with 6 sprays water vapor uniformly from 80 steam spray nozzles 17, with 40% coal dust of surplus reaction in the above-mentioned reaction formula (3) takes place.
The high CO of coal wind that take of the present utility model for reclaiming from other industrial furnaces
2Flue gas, subparticipation can be saved 5% coal dust in the above-mentioned reaction formula (2).Combustion air of the present utility model is a pure oxygen, and temperature of combustion is up to 1700 ℃, and forming flame diameter is φ 1200.Producer gas generator 2 furnace cavities are big, and arriving water wall 4 from the body of heater center has 2500mm, and water wall 4 is made up of the seamless tube of 80 φ 51 wall thickness 4, and the inside recirculated cooling water guarantees that water wall 4 outer temperature, can slagging scorification outside the water wall 4 between 800-900 ℃.
Steam spray nozzle 17 of the present utility model is made by φ 6 stainless steel tubes, material is a 06Cr25Ni20 high temperature steel, annular is uniform on water vapor spray ring 6, each steam spray nozzle 17 becomes 26 ° of angles with axis, make the water vapor of ejection be tangential on flame diameter, above-mentioned reaction (3) takes place in sufficient and coal dust.H
2O, CO
2The condition that reduction reaction takes place with C is: temperature of reaction is 1100 ℃ to 1500 ℃, and pressure is 0.05MPa.。
More than disclosed be specific embodiment of the utility model only, but the utility model is not limited thereto, any those skilled in the art can think variation, all should drop within the protection domain of the present utility model.
Claims (4)
1. coal dust producer gas generator, comprise coal burner, producer gas generator, described producer gas generator is characterized in that: coal burner is equipped with at the top, entrance of cooling water is equipped with on top, and entrance of cooling water links to each other with the water wall of burner hearth inboard, and steam entry is equipped with at the producer gas generator middle part, steam entry links to each other with the water vapor spray ring of burner hearth inside, gas exit is equipped with in the producer gas generator bottom, and cooling water outlet and slag-drip opening are equipped with in the producer gas generator bottom, and slag-drip opening links to each other with unloading valve.
2. coal dust producer gas generator according to claim 1, its characteristic is: coal burner is equipped with at described coal dust producer gas generator top.
3. coal dust producer gas generator according to claim 1, its characteristic is: the furnace diameter of described coal dust producer gas generator is big, is φ 5000, and the furnace wall is the water wall of being made up of the seamless tube of 80 φ 51 wall thickness 4.
4. coal dust producer gas generator according to claim 1, its characteristic is: water vapor spray ring is equipped with at the burner hearth middle part of described coal dust producer gas generator, on the spray ring 80 uniform nozzles are housed, 80 steam spray nozzles are made by φ 6 stainless steel tubes, and material is a 06Cr25Ni20 high temperature steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220632277 CN203095999U (en) | 2012-11-27 | 2012-11-27 | Pulverized coal gas producer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220632277 CN203095999U (en) | 2012-11-27 | 2012-11-27 | Pulverized coal gas producer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203095999U true CN203095999U (en) | 2013-07-31 |
Family
ID=48847417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220632277 Expired - Fee Related CN203095999U (en) | 2012-11-27 | 2012-11-27 | Pulverized coal gas producer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203095999U (en) |
-
2012
- 2012-11-27 CN CN 201220632277 patent/CN203095999U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20131127 |