CN214664371U - Graded gasification combustion equipment - Google Patents
Graded gasification combustion equipment Download PDFInfo
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- CN214664371U CN214664371U CN202120690472.XU CN202120690472U CN214664371U CN 214664371 U CN214664371 U CN 214664371U CN 202120690472 U CN202120690472 U CN 202120690472U CN 214664371 U CN214664371 U CN 214664371U
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Abstract
The utility model discloses a staged gasification combustion device, which comprises a base and a primary gasification chamber arranged on the base, wherein the primary gasification chamber is arranged in an inclined structure, the top of the primary gasification chamber is connected with a furnace top combustion module, the bottom of the primary gasification chamber is communicated with a flue, the other end of the flue is connected with a secondary gasification chamber, and a secondary pulverized coal gas collection bag is arranged at the joint of the secondary gasification chamber and the flue; the furnace top combustion module is communicated with a furnace top combustion fan, the middle of the primary gasification chamber is connected with the primary combustion fan, and the secondary gasification chamber is communicated with a secondary combustion fan. The coal powder adopts the principles of staged gasification and staged combustion, and is gasified and then combusted, so that the burnout rate is high and the content of nitrogen oxides is low; the whole layout saves space, the operability is stronger, the potential safety hazard is reduced, and the production can be met by using an air-cooled design; in addition, various energy sources can participate in combustion, and the utilization rate of the energy sources is increased.
Description
Technical Field
The utility model relates to a pulverized coal combustion device, concretely relates to hierarchical gasification combustion apparatus.
Background
In order to improve the energy utilization rate and strengthen the development of petroleum substitutes, China also uses a large amount of pulverized coal fuel as basic energy. In many industrial kilns, in order to reduce fuel costs, pulverized coal burners that directly burn pulverized coal are used. However, the general pulverized coal burner has the following disadvantages: 1. the pulverized coal is not sufficiently combusted. Generally, the pulverized coal needs longer time for sufficient combustion, which means that a larger combustion space is needed to ensure that the pulverized coal is sufficiently burnt out, the conventionally designed pulverized coal burner generally adopts a direct combustion method, the burning-out rate of the pulverized coal is low, carbon particles cannot be sufficiently combusted, resources are seriously wasted, and the environment is polluted; 2. is not beneficial to air environmental protection. A large amount of nitrogen oxides can be generated in the combustion process of the pulverized coal, so that the environment is polluted; 3. the direct pulverized coal combustion equipment is adopted, the quantity of air required for pulverized coal combustion is large, the combustion equipment is inevitably large in size, and field installation is difficult. Therefore, a combustion apparatus capable of solving the above problems is required.
SUMMERY OF THE UTILITY MODEL
To the above problem, the present invention aims to provide a staged gasification combustion apparatus.
In order to realize the technical purpose, the utility model discloses a scheme is: a staged gasification combustion device comprises a base and a primary gasification chamber arranged on the base, wherein the primary gasification chamber is arranged in an inclined structure, the top of the primary gasification chamber is connected with a furnace top combustion module, the bottom of the primary gasification chamber is communicated with a flue, the other end of the flue is connected with a secondary gasification chamber, and a secondary pulverized coal gas collection bag is arranged at the joint of the secondary gasification chamber and the flue;
the furnace top combustion module is communicated with a furnace top combustion fan, the middle of the primary gasification chamber is connected with the primary combustion fan, and the secondary gasification chamber is communicated with a secondary combustion fan.
Preferably, the secondary pulverized coal gas collecting bag is fixed with a natural gas combustion module.
Preferably, a butt joint port is further arranged in the secondary gasification chamber, and the butt joint port can be connected with a heavy oil combustion module.
Preferably, the top combustion module is a diesel auxiliary combustion system.
Preferably, a natural gas collecting bag is arranged at the joint of the secondary gasification chamber and the flue.
Preferably, the interlayer of the secondary gasification chamber is connected with a combustion-supporting air pipeline, and the combustion-supporting air pipeline is connected with a secondary combustion-supporting fan.
Preferably, the furnace top combustion-supporting fan, the primary combustion-supporting fan and the secondary combustion-supporting fan control the air exhaust amount through frequency conversion.
Preferably, the primary gasification chamber and the secondary gasification chamber are cylindrical structures.
The utility model has the advantages that: the coal powder adopts the principles of staged gasification and staged combustion, and is gasified and then combusted, so that the burnout rate is high and the content of nitrogen oxides is low; the whole layout saves space, the operability is stronger, the potential safety hazard is reduced, and the production can be met by using an air-cooled design; in addition, various energy sources can participate in combustion, and the utilization rate of the energy sources is increased.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
1. A base; 2. a primary gasification chamber; 3. a top combustion module; 4. a flue; 5. a secondary gasification chamber; 6. a furnace top combustion fan; 7. a primary combustion fan; 8. a secondary combustion fan; 9. a secondary pulverized coal gas collecting bag; 10. a natural gas combustion module; 11. a heavy oil combustion module; 12. a natural gas collection bag; 13. a combustion-supporting air duct.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the specific embodiment of the present invention is a staged gasification combustion apparatus, comprising a base 1 and a primary gasification chamber 2 disposed on the base 1, wherein the primary gasification chamber 2 is disposed in an inclined structure, the top of the primary gasification chamber 2 is connected to a furnace top combustion module 3, the bottom of the primary gasification chamber 2 is communicated with a flue 4, the other end of the flue 4 is connected to a secondary gasification chamber 5, and a secondary pulverized coal gas collection bag 9 is disposed at the connection between the secondary gasification chamber 5 and the flue 4;
by adopting the principles of staged gasification and staged combustion, a part of pulverized coal enters a primary gasification chamber 2 through a furnace top combustion module 3, preferably, the furnace top combustion module 3 is a diesel auxiliary combustion system, in order to accelerate the combustion progress, the furnace top combustion module 3 is communicated with a furnace top combustion fan 6, the middle of the primary gasification chamber 2 is connected with a primary combustion fan 7, the whole primary gasification chamber 2 reaches the gasification temperature after primary combustion is carried out through the diesel auxiliary combustion system, the furnace top combustion fan 6 and the primary combustion fan 7, the temperature is detected through a high-temperature thermocouple arranged in the wall of the gasification chamber, the subsequently entered pulverized coal reacts into combustible gas containing carbon monoxide, hydrogen, methane and the like under high-temperature gasification, and the excessive pulverized coal and the pulverized coal in the primary gasification chamber 2 are mixed to carry out anoxic combustion to control the gasification temperature;
the secondary gasification chamber 5 is communicated with a secondary combustion fan 8, an interlayer of the secondary gasification chamber 5 is connected with a combustion air pipeline 13, the combustion air pipeline 13 is connected with the secondary combustion fan 8, excessive coal powder is fully gasified in the flue 4 and then reaches the secondary gasification chamber 5 to be mixed with coal powder sprayed from the secondary coal powder gas collection bag 9, the secondary coal powder is quickly gasified at high temperature, the gasification and combustion processes are completed in the secondary gasification chamber 5, and the generated heat is supplied to the drying roller to dry aggregate.
This application can also utilize the natural gas burning, the junction of second grade vaporizer 5 and flue 4 is equipped with natural gas collection gas package 12, be fixed with natural gas combustion module 10 on the second grade buggy collection gas package 9, burn off in second grade vaporizer 5 after second grade vaporizer 5 mixes with second grade combustion fan 8.
This application still is equipped with the interface in the second grade vaporizer 5, and in actual production, when the buggy supply is not enough, heavy oil combustion module 11 can be connected to this interface, utilizes heavy oil to burn to solve the demand of emergent production, heavy oil burns in second grade vaporizer 5 inside after mixing with second grade combustion fan 8 after atomizing.
In order to adjust the air quantity of the combustion-supporting fan, the furnace top combustion-supporting fan 6, the primary combustion-supporting fan 7 and the secondary combustion-supporting fan 8 are realized through frequency conversion.
Preferably, the primary gasification chamber 2 and the secondary gasification chamber 5 of the present application adopt cylindrical structures, and gas rotation is facilitated in an annular gasification chamber channel, so that the coal dust airflow moves along a spiral track, and separation gasification is accelerated.
The coal powder adopts the principles of staged gasification and staged combustion, and is gasified and then combusted, so that the burnout rate is high and the content of nitrogen oxides is low; the whole layout saves space, the operability is stronger, the potential safety hazard is reduced, and the production can be met by using an air-cooled design; in addition, various energy sources can participate in combustion, and the utilization rate of the energy sources is increased.
The above, only do the preferred embodiment of the present invention, not used to limit the present invention, all the technical matters of the present invention should be included in the protection scope of the present invention for any slight modification, equivalent replacement and improvement of the above embodiments.
Claims (8)
1. A staged gasification combustion apparatus, comprising: the coal dust gasification device comprises a base and a primary gasification chamber arranged on the base, wherein the primary gasification chamber is arranged in an inclined structure, the top of the primary gasification chamber is connected with a furnace top combustion module, the bottom of the primary gasification chamber is communicated with a flue, the other end of the flue is connected with a secondary gasification chamber, and a secondary coal dust gas collection bag is arranged at the joint of the secondary gasification chamber and the flue;
the furnace top combustion module is communicated with a furnace top combustion fan, the middle of the primary gasification chamber is connected with the primary combustion fan, and the secondary gasification chamber is communicated with a secondary combustion fan.
2. The staged gasification combustion apparatus of claim 1, wherein: and a natural gas combustion module is fixed on the secondary pulverized coal gas collecting bag.
3. The staged gasification combustion apparatus of claim 1, wherein: and a butt joint is also arranged in the secondary gasification chamber and can be connected with a heavy oil combustion module.
4. The staged gasification combustion apparatus of claim 1, wherein: the furnace top combustion module is a diesel auxiliary combustion system.
5. The staged gasification combustion apparatus of claim 1, wherein: and a natural gas collecting bag is arranged at the joint of the secondary gasification chamber and the flue.
6. The staged gasification combustion apparatus of claim 1, wherein: and the interlayer of the secondary gasification chamber is connected with a combustion-supporting air pipeline, and the combustion-supporting air pipeline is connected with a secondary combustion-supporting fan.
7. The staged gasification combustion apparatus of claim 1, wherein: the furnace top combustion-supporting fan, the primary combustion-supporting fan and the secondary combustion-supporting fan control the air exhaust amount through frequency conversion.
8. The staged gasification combustion apparatus of claim 1, wherein: the primary gasification chamber and the secondary gasification chamber are of cylindrical structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120690472.XU CN214664371U (en) | 2021-04-06 | 2021-04-06 | Graded gasification combustion equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120690472.XU CN214664371U (en) | 2021-04-06 | 2021-04-06 | Graded gasification combustion equipment |
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| Publication Number | Publication Date |
|---|---|
| CN214664371U true CN214664371U (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120690472.XU Active CN214664371U (en) | 2021-04-06 | 2021-04-06 | Graded gasification combustion equipment |
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| CN (1) | CN214664371U (en) |
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2021
- 2021-04-06 CN CN202120690472.XU patent/CN214664371U/en active Active
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