CN210891669U - Garbage incinerator with 850 ℃/2S combustion process - Google Patents
Garbage incinerator with 850 ℃/2S combustion process Download PDFInfo
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- CN210891669U CN210891669U CN201921158043.7U CN201921158043U CN210891669U CN 210891669 U CN210891669 U CN 210891669U CN 201921158043 U CN201921158043 U CN 201921158043U CN 210891669 U CN210891669 U CN 210891669U
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Abstract
The utility model provides a waste incinerator with 850 ℃/2S 'S combustion technology, a serial communication port, waste incinerator is including preceding arch and grate, wherein, the front end that preceding arch is provided with marsh gas injection apparatus and overgrate air feeding device, overgrate air feeding device arranges marsh gas injection apparatus' S along rubbish is in the back of the direction of movement on the grate, marsh gas injection apparatus moves towards the marsh gas that landfill leachate produced the grate blowout, overgrate air feeding device is used for suppressing the fire in order to prevent preceding arch coking. The utility model provides a burning process which is suitable for guaranteeing 850 ℃/2S of a waste incineration power plant with lower calorific value of waste in the north, and guarantees the burning process of 850 ℃/2S by additionally arranging a methane gun mouth at the front end of a front arch of a burning furnace for supporting combustion; the secondary air gun is arranged behind the methane gun mouth to suppress fire so as to prevent the front arch of the incinerator from coking.
Description
Technical Field
The utility model relates to a refuse treatment field, in particular to a refuse incinerator for guaranteeing 850 ℃/2S combustion technology of the refuse incinerator for refuse landfill.
Background
Due to the low heat value of the garbage in winter in northern areas, the incinerator can not meet the requirement of GB18485 flue gas incineration pollution control standard of 850 ℃/2S when operating in winter, and the flue gas and operation data of all the existing incineration power plants are networked with the environmental protection department so as to be transmitted in real time, so that the incineration power plants which can not meet the requirement of 850 ℃/2S can pay severe cost in economy and operation.
At present, the waste incineration power plant which is operated generally adopts the method of increasing auxiliary combustion steam to raise the temperature, and the mode of additionally arranging methane and a secondary air spray gun before a front arch is not adopted to ensure 850 ℃/2S.
Therefore, there is a need to propose a waste incinerator with a combustion process of 850 ℃/2S to at least partially solve the above problems.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides a garbage incinerator with a combustion process of 850 ℃/2S, which is characterized in that the garbage incinerator comprises a front arch and a fire grate,
the secondary air supply device is arranged behind the methane injection device along the moving direction of the garbage on the fire grate, the methane injection device sprays methane generated by garbage percolate towards the fire grate, and the secondary air supply device is used for suppressing fire to prevent the front arch from coking.
In one example, the biogas injection apparatus comprises a biogas lance.
In one example, the secondary air supply device comprises a secondary air gun.
In one example, the waste incinerator further comprises a first flue located above the grate.
In one example, the extension direction of the biogas injection device forms an acute angle with the plane of the grate.
In one example, the extension direction of the secondary air supply device forms an acute angle with the plane of the fire grate.
The utility model provides a novel garbage incinerator, garbage incinerator include preceding arch and grate, and preceding arch department is provided with marsh gas injection apparatus and overgrate air feeding device, and marsh gas that landfill leachate produced is via marsh gas injection apparatus towards the grate blowout, and overgrate air feeding device arranges the back at marsh gas injection apparatus's the moving direction of edge rubbish on the grate, and overgrate air feeding device presses the fire in order to prevent preceding arch coking.
The utility model provides a waste incineration power plant that is applicable to the lower waste heat value in the north guarantees the incineration technology of 850 ℃/2S: 1. a methane gun port is additionally arranged at the front end of a front arch of the incinerator for supporting combustion; 2. a secondary air gun is arranged behind the methane gun mouth to carry out fire suppression; by the method 1, methane generated by leachate of a waste incineration power plant is reasonably utilized; 2. the flue gas temperature of a flue of the incinerator is increased, and 850 ℃/2S is ensured (the flue gas temperature exceeds 850 ℃, and the flue gas retention time exceeds 2S); 3. a secondary air gun is arranged at the unburned section to prevent a secondary air gun port from coking; 4. secondary air is used for fire suppression to prevent the front arch of the incinerator from coking.
Drawings
The following drawings of the present invention are used herein as part of the present invention for understanding the present invention. There are shown in the drawings, embodiments and descriptions of the invention, which are used to explain the principles of the invention.
In the drawings:
fig. 1 is a schematic structural view of a garbage incinerator according to an embodiment of the present invention.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.
In the following description, specific method steps and/or structures are set forth in order to provide a thorough understanding of the present invention. It is apparent that the practice of the invention is not limited to the specific details known to those skilled in the art. The preferred embodiments of the present invention are described in detail below, however, other embodiments of the present invention are possible in addition to these detailed descriptions.
It is to be understood that the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity. Like reference numerals refer to like elements throughout.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
Due to the problem of low heat value of the wastes in winter in northern areas, the operation of northern waste incineration power plants in winter is difficult, the waste incineration power plants adopt a mode of burning diesel oil by an auxiliary burner to ensure that 850 ℃/2S is used, and 20 tons of diesel oil are burnt in 20 days in 1 month in certain projects in Shandong, which brings heavy operation and economic burden to the projects.
The utility model provides a novel garbage incinerator, garbage incinerator include preceding arch and grate, and preceding arch department is provided with marsh gas injection apparatus and overgrate air feeding device, and the marsh gas that landfill leachate produced is via marsh gas injection apparatus towards the grate blowout, and overgrate air feeding device arranges in the next district along the marsh gas injection apparatus of rubbish moving direction on the grate, and overgrate air feeding device presses the fire in order to prevent preceding arch coking.
The utility model provides a waste incineration power plant that is applicable to the lower waste heat value in the north guarantees the incineration technology of 850 ℃/2S: 1. a methane gun port is additionally arranged at the front end of a front arch of the incinerator for supporting combustion; 2. a secondary air gun is arranged behind the methane gun mouth to carry out fire suppression; by the method 1, methane generated by leachate of a waste incineration power plant is reasonably utilized; 2. the flue gas temperature of a flue of the incinerator is increased, and 850 ℃/2S is ensured (the flue gas temperature exceeds 850 ℃, and the flue gas retention time exceeds 2S); 3. a secondary air gun is arranged at the unburned section to prevent a secondary air gun port from coking; 4. secondary air is used for fire suppression to prevent the front arch of the incinerator from coking.
As shown in fig. 1, the embodiment of the present invention provides a garbage incinerator 100 having a combustion process of 850 ℃/2S, the garbage incinerator 100 including a front arch 1, a grate 2, and a first flue 3 located above the grate.
Wherein, the front arch 1 is provided with a biogas injection device a and a secondary air supply device b, biogas generated by the garbage percolate is sprayed towards the fire grate 2 through the biogas injection device a, the secondary air supply device b is arranged at the lower part of the biogas injection device a along the moving direction of the garbage on the fire grate 2, and the secondary air supply device b is used for suppressing fire to prevent the front arch 1 from coking.
In one example, the biogas injection apparatus comprises a biogas lance.
In one example, the secondary air supply device includes a secondary air gun.
In one example, the extension direction of the biogas injection device forms an acute angle with the plane of the grate.
In one example, the secondary air supply means extends at an acute angle to the plane of the grate.
Biogas generated by the landfill leachate is obliquely sprayed towards a fire grate 2 of the incinerator through a biogas spray gun, a secondary air gun is arranged behind the biogas spray gun to suppress fire to prevent a front arch 1 of the incinerator from coking, flue gas generated by biogas combustion and flue gas generated by garbage combustion on the fire grate 2 are discharged at a low speed through a widened first flue, and the above process can ensure that the incinerator does not coke while maintaining 850 ℃/2S (the flue gas temperature exceeds 850 ℃, and the flue gas residence time exceeds 2S).
The main invention points of the utility model are as follows:
1. the biogas gun is additionally arranged at the front end of the front arch of the incinerator to spray biogas for drying and combustion supporting, so that the burnout rate of garbage and the smoke temperature of a hearth are improved, and 850 ℃/2S of the incinerator is guaranteed.
2. A secondary air gun is additionally arranged behind the methane gun, so that air required by methane is provided, and meanwhile, fire is suppressed, and coking of a front arch of the incinerator is prevented.
3. Reasonably utilizes the marsh gas generated by the percolate of the waste incineration power plant, utilizes the waste heat of the power plant and improves the generating capacity of the incineration power plant.
Compared with the prior art, the utility model has the advantages of it is following:
1. the biogas gun is additionally arranged at the front end of the front arch of the incinerator to spray biogas for drying and combustion supporting, so that the burnout rate of garbage and the smoke temperature of a hearth are improved, and 850 ℃/2S of the incinerator is guaranteed.
2. A secondary air gun is additionally arranged behind the methane gun, so that air required by methane is provided, and meanwhile, fire is suppressed, and coking of a front arch of the incinerator is prevented.
3. Reasonably utilizes the marsh gas generated by the percolate of the waste incineration power plant, utilizes the waste heat of the power plant and improves the generating capacity of the incineration power plant.
The utility model provides a novel garbage incinerator, garbage incinerator include garbage incinerator, and garbage incinerator includes preceding arch and grate, and preceding arch department is provided with marsh gas injection apparatus and overgrate air feeding device, and the marsh gas that landfill leachate produced is via marsh gas injection apparatus towards the grate blowout, and overgrate air feeding device arranges the next district along rubbish moving direction on the grate at marsh gas injection apparatus, and overgrate air feeding device presses the fire in order to prevent preceding arch coking.
The utility model provides a waste incineration power plant that is applicable to the lower waste heat value in the north guarantees the incineration technology of 850 ℃/2S: 1. a methane gun port is additionally arranged at the front end of a front arch of the incinerator for supporting combustion; 2. a secondary air gun is arranged behind the methane gun mouth to carry out fire suppression; by the method 1, methane generated by leachate of a waste incineration power plant is reasonably utilized; 2. the flue gas temperature of a flue of the incinerator is increased, and 850 ℃/2S is ensured; 3. a secondary air gun is arranged at the unburned section to prevent a secondary air gun port from coking; 4. secondary air is used for fire suppression to prevent the front arch of the incinerator from coking.
The utility model discloses a similar replacement or the deformation of individual part or component in the waste incinerator all fall into within the protection scope of the utility model.
The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many more modifications and variations are possible in light of the teaching of the present invention and are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A garbage incinerator with 850 ℃/2S combustion technology is characterized in that the garbage incinerator comprises a front arch and a grate,
the secondary air supply device is arranged behind the methane injection device along the moving direction of the garbage on the fire grate, the methane injection device sprays methane generated by garbage percolate towards the fire grate, and the secondary air supply device is used for suppressing fire to prevent the front arch from coking.
2. The waste incinerator according to claim 1, wherein said biogas injection means comprises a biogas lance.
3. The waste incinerator according to claim 1, wherein said secondary air supply means comprises a secondary air lance.
4. The waste incinerator of claim 1, further comprising a first flue located above the grate.
5. The waste incinerator according to claim 1, wherein the extension direction of said biogas jet means is at an acute angle to the plane of said grate.
6. The waste incinerator according to claim 1, wherein said secondary air supply means extends at an acute angle to the plane of said grate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921158043.7U CN210891669U (en) | 2019-07-22 | 2019-07-22 | Garbage incinerator with 850 ℃/2S combustion process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921158043.7U CN210891669U (en) | 2019-07-22 | 2019-07-22 | Garbage incinerator with 850 ℃/2S combustion process |
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| CN210891669U true CN210891669U (en) | 2020-06-30 |
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| CN201921158043.7U Active CN210891669U (en) | 2019-07-22 | 2019-07-22 | Garbage incinerator with 850 ℃/2S combustion process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112944348A (en) * | 2020-12-27 | 2021-06-11 | 上海康恒环境股份有限公司 | Waste incineration grate furnace reburning denitration methane treatment system |
| CN114060826A (en) * | 2021-11-23 | 2022-02-18 | 浦湘生物能源股份有限公司 | Automatic incineration control method and system for incinerator |
-
2019
- 2019-07-22 CN CN201921158043.7U patent/CN210891669U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112944348A (en) * | 2020-12-27 | 2021-06-11 | 上海康恒环境股份有限公司 | Waste incineration grate furnace reburning denitration methane treatment system |
| CN114060826A (en) * | 2021-11-23 | 2022-02-18 | 浦湘生物能源股份有限公司 | Automatic incineration control method and system for incinerator |
| CN114060826B (en) * | 2021-11-23 | 2024-05-28 | 浦湘生物能源股份有限公司 | Automatic incineration control method and control system for incinerator |
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