CN210891675U - Incinerator air inlet device suitable for northern severe cold area and waste incineration device - Google Patents
Incinerator air inlet device suitable for northern severe cold area and waste incineration device Download PDFInfo
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- CN210891675U CN210891675U CN201921178674.5U CN201921178674U CN210891675U CN 210891675 U CN210891675 U CN 210891675U CN 201921178674 U CN201921178674 U CN 201921178674U CN 210891675 U CN210891675 U CN 210891675U
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Abstract
The utility model provides an burn burning furnace hot blast blowpipe apparatus and msw incineration device suitable for northern severe cold area, this hot blast blowpipe apparatus includes: one end of the primary air taking pipe is provided with a garbage pit air taking port and a furnace top air taking port, and the other end of the primary air taking pipe is provided with an air outlet; a primary air fan; taking an air pipe from a secondary air garbage pit; taking an air duct from the top of the secondary air duct; and the air inlet of the secondary fan is connected with the air outlet of the secondary air garbage pit air taking pipe and the air outlet of the secondary air furnace top air taking pipe, the air outlet is connected with a secondary air inlet pipe, and the secondary air inlet pipe is used for guiding secondary air into a vertical flue of the incinerator. According to the utility model discloses an burn burning furnace hot blast blowpipe apparatus and msw incineration device can reduce the amount of wind of getting of waste incinerator one, overgrate air in the rubbish hole in severe cold season to reduce the winter heating load in the rubbish hole, guarantee the temperature in the rubbish hole, promote the fermentation of rubbish, improve the thermal efficiency of power plant, guarantee the stable of the cold area waste incineration power plant winter in the north, safe operation.
Description
Technical Field
The utility model relates to a msw incineration power generation technology particularly relates to an burn burning furnace hot blast blowpipe apparatus and msw incineration device suitable for northern severe cold area.
Background
With the development of national economy and the improvement of the living standard of people in China, the generation amount of urban domestic garbage is increased day by day, and the phenomenon of enclosing the city with garbage becomes a troublesome problem influencing the development of various large and medium cities. Compared with other garbage disposal technologies, the garbage incineration power generation technology can better realize the aims of reduction, harmlessness and reclamation, and becomes an effective means for relieving and solving the disposal dilemma of the garbage at home and abroad at present.
The primary air and the secondary air of the traditional garbage incinerator are taken from a garbage pit, and the traditional garbage incinerator mainly has the following functions: firstly, the negative pressure of the garbage pit is ensured, and the odor in the garbage pit is prevented from escaping to the atmosphere to pollute the environment; secondly, the odor is sent into a garbage incinerator for burning, so that the purpose of removing the odor is achieved; and thirdly, preventing the biogas generated by the fermentation of the garbage in the garbage pit from gathering in the garbage pit and generating fire, explosion and other hidden dangers. However, in northern severe cold areas, the stable operation of the incinerator is affected due to low temperature in the garbage pit and poor garbage fermentation in winter, so that the garbage pit needs to be heated, and at the moment, if primary air and secondary air are taken from the garbage pit, a large amount of heat energy is consumed, so that an improved process is needed, the air taking quantity of the primary air and the secondary air in the garbage pit is reduced, and part of air is taken from the top of a boiler room.
SUMMERY OF THE UTILITY MODEL
In the summary section a series of concepts in a simplified form is introduced, which will be described in further detail in the detailed description section. The inventive content does not imply any attempt to define the essential features and essential features of the claimed solution, nor is it implied to be intended to define the scope of the claimed solution.
In order to solve above-mentioned problem partially at least, the utility model discloses an burn burning furnace hot blast blowpipe apparatus suitable for northern severe cold area, it includes:
the device comprises a primary air taking pipe, a garbage pit air taking port and a furnace top air taking port are arranged at one end of the primary air taking pipe, and an air outlet is arranged at the other end of the primary air taking pipe;
the air inlet of the primary air fan is connected with the air outlet of the primary air intake pipe, and the air outlet of the primary air fan is connected with the primary air chamber of the incinerator;
the secondary air garbage pit air taking pipe is provided with a secondary air garbage pit air taking opening at one end and an air outlet at the other end;
the secondary air furnace top air taking pipe is provided with a secondary air furnace top air taking port at one end and an air outlet at the other end;
and the air inlet of the secondary fan is connected with the air outlet of the secondary air garbage pit air taking pipe and the air outlet of the secondary air furnace top air taking pipe, the air outlet of the secondary fan is connected with a secondary air inlet pipe, and the secondary air inlet pipe is used for guiding secondary air into a vertical flue of the incinerator.
In an embodiment of the present invention, the air intake hole of the garbage pit of the primary air intake pipe is disposed at the top of the garbage pit.
In an embodiment of the present invention, the furnace top air intake port of the primary air intake pipe is disposed near the furnace top of the incinerator and adjacent to the garbage pit air intake port of the primary air intake pipe.
The utility model discloses an embodiment, overgrate air rubbish hole that overgrate air rubbish hole got the tuber pipe is connected on the tuber pipe is got to the overgrate air rubbish hole or arrange at rubbish hole top.
In one embodiment of the present invention, the overfire air intake port of the overfire air intake pipe is disposed near the top of the incinerator.
In an embodiment of the present invention, the air inlet of the secondary air fan is connected to the air outlet of the secondary air garbage pit air intake pipe and the air outlet of the secondary air furnace top air intake pipe through a triple pipe.
In an embodiment of the present invention, a valve is disposed at the furnace top air intake opening of the primary air intake pipe for adjusting the opening degree of the furnace top air intake opening of the primary air intake pipe.
The utility model discloses an embodiment, the air outlet department that the tuber pipe was got in overgrate air rubbish hole is provided with the valve, is used for adjusting the aperture of the air outlet of tuber pipe is got in overgrate air rubbish hole.
In an embodiment of the present invention, the air outlet of the secondary air furnace top air intake pipe is provided with a valve for adjusting the opening degree of the air outlet of the secondary air furnace top air intake pipe.
In order to solve above-mentioned problem partially at least, the utility model also discloses a msw incineration device, it includes:
the garbage pit is used for storing garbage;
a garbage incinerator for incinerating garbage;
the feeding unit is used for conveying the garbage in the garbage pit to the garbage incinerator; and
the incinerator air intake device as claimed in claim, for providing primary air and secondary air to said waste incinerator.
According to the utility model discloses an burn burning furnace hot blast blowpipe apparatus and msw incineration device suitable for severe cold area in the north, through increasing one, the overgrate air furnace roof bypass of getting wind, reduce one, the amount of wind of getting of overgrate air in the rubbish hole, the part is from the boiler room furnace roof and is got wind, thereby can reduce the winter heating load in the rubbish hole, guarantee the temperature in the rubbish hole, promote the fermentation of rubbish in the rubbish hole in winter, improve the thermal efficiency of power plant, guarantee the stability of the northern severe cold area waste incineration power plant in winter, the safe operation.
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 shows according to the utility model discloses a structural schematic diagram of waste incineration device suitable for northern severe cold district.
Description of reference numerals:
10 refuse pit
20 incinerator
21 incineration grate
22 primary air chamber
23 feed inlet
24 slag hole
30 feed unit
40 primary air intake pipe
41 primary air garbage pit air intake
42 primary air furnace top air intake hole
43 air outlet
50 primary air blower
60 secondary air garbage pit air taking pipe
61 secondary air garbage pit air intake
62 air outlet
70 secondary air furnace top air taking pipe
71 secondary air intake on top of furnace
72 air outlet
80 secondary fan
90 secondary air inlet pipe
100 refuse incinerator
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 embodiments of the 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 embodiments of the present invention.
In the following description, a detailed structure will be presented for a thorough understanding of embodiments of the invention. It is apparent that the implementation of the embodiments of the present invention is not limited to the specific details familiar to those skilled in the art. The preferred embodiments of the present invention are described in detail below, however, other embodiments of the invention are possible in addition to these detailed descriptions.
Before the introduction, the meaning of the terms in this text is explained.
Waste incineration power plants: a power plant which takes the domestic garbage as a main fuel and converts the chemical energy of the domestic garbage into electric energy for fixed facilities or transportation to use electricity;
a garbage incinerator: a device for burning household garbage for harmless treatment enables the household garbage to be mixed and combusted with air in a hearth to become high-temperature flue gas and slag to enter subsequent treatment equipment;
primary air: the air system enters a hearth from the lower part of a grate of the garbage incinerator and performs drying and combustion on garbage;
secondary air flow: the air system is an air system which enters from a first vertical flue (a second combustion chamber) of the garbage incinerator to fully mix combustion air and flue gas and achieve the purpose of completely combusting CO.
The utility model discloses a current waste incineration power plant waste incinerator wind system of improvement makes it can adapt to the severe cold weather in the north, promptly in severe cold season, reduces the waste incinerator one, the amount of wind of getting of overgrate air in the rubbish hole to reduce the winter heating load in the rubbish hole, guarantee the temperature in the rubbish hole, promote the fermentation of rubbish, improve the thermal efficiency of power plant, guarantee the stability of the severe cold area waste incineration power plant in the north winter, safe operation.
A waste incineration device 100 suitable for northern severe cold areas according to an embodiment of the present invention will be described in detail with reference to fig. 1.
The waste incineration device 100 suitable for northern severe cold areas provided by the embodiment improves a wind system, so that the device can be stably and safely operated in winter and other cold periods.
As shown in fig. 1, the waste incineration apparatus 100 provided by the present embodiment includes a waste pit 10, an incinerator 20, a feeding unit 30, and an incinerator air intake device.
The garbage pit 10 is used for storing garbage to be incinerated, and the garbage can be fermented in the garbage pit 10.
The incinerator 20 is used for incineration of garbage. The incinerator 20 includes an incineration grate 21 and a flue located in the incinerator, and a primary air chamber 22 located below the incineration grate for providing air required for incineration of the waste on the incineration grate. The incinerator 20 is also provided with a feed inlet 23 and a slag outlet 24, garbage enters the incinerator grate from the feed inlet 23 to be incinerated, incinerator slag is discharged through the slag outlet 24, and flue gas generated by incineration flows along a flue above the incinerator grate and is combusted secondarily.
The feeding unit 30 comprises a feeding guide rail and a feeding cart, and the garbage in the garbage pit 10 can be conveyed to the feeding hole of the incinerator 20 through the feeding unit 30 and then enters the incineration grate for incineration.
The air intake device of the incinerator is used for providing primary air and secondary air for the incinerator 20 so as to fully burn the garbage.
In this embodiment, the air intake device of the incinerator comprises a primary air intake pipe 40, a primary fan 50, a secondary air garbage pit intake pipe 60, a secondary air furnace top intake pipe 70, a secondary fan 80 and a secondary air intake pipe 90.
One end of the primary air taking pipe 40 is provided with a garbage pit air taking port 41 and a furnace top air taking port 42, and the other end is provided with an air outlet 43. A garbage pit air intake port 41 of the primary air intake pipe 40 is arranged at the top of the garbage pit 10, and air in the garbage pit 10 enters the primary air intake pipe 40 through the garbage pit air intake port 41. The furnace top air intake port 42 of the primary air intake duct 40 is arranged near the furnace top of the incinerator 20 and adjacent to the refuse pit air intake port 41 of the primary air intake duct 40. Air near the furnace top enters the primary air intake duct 40 through the furnace top air intake opening 42. And a valve is arranged at the furnace top air intake port 42 of the primary air intake pipe 40 and used for adjusting the opening degree of the furnace top air intake port 42 of the primary air intake pipe 40, the flow velocity/flow of the gas entering through the furnace top air intake port 42 can be adjusted by adjusting the opening degree of the valve, and the air intake rate in the garbage pit and the furnace top air intake rate can reach an optimal value, so that the odor in the garbage pit is prevented from escaping, and the air intake rate of the garbage pit can be reduced to the maximum extent. The valve is illustratively an electrically-operated regulator valve, the opening of which can be controlled by a controller connected thereto. The valve at the furnace top extraction port 42 may be closed when extraction of air from the furnace top is not required.
In this embodiment, a plurality of air outlets, for example, 5 air outlets, are provided at the other end of the primary air exhaust duct 40, and each air outlet is connected to one primary air chamber of the incinerator 20 for providing primary air to the corresponding incinerator grate.
The primary air blower 50 is used to introduce the gas in the primary air duct 40 into the primary air chamber, i.e. the gas near the refuse pit 10 and/or the furnace top is introduced into the primary air chamber as primary air. In this embodiment, the air inlet of the primary air fan 50 is connected to the air outlet 43 of the primary air exhaust duct 40, and the air outlet of the primary air fan 50 is connected to the primary air chamber of the incinerator 20. Illustratively, in this embodiment, 5 primary air blowers are provided, each corresponding to the air outlet 43 of one primary air intake duct 40 and one primary air chamber of the incinerator 20.
The overfire air pit take-off duct 60 is used to take off air from the pit as overfire air to the incinerator 20. And one end of the secondary air garbage pit air taking pipe 60 is provided with a secondary air garbage pit air taking port 61, the other end of the secondary air garbage pit air taking pipe 60 is provided with an air outlet 62, and air in the garbage pit enters the secondary air garbage pit air taking pipe 60 through the secondary air garbage pit air taking port 61 and then enters the incinerator 20 through the air outlet 62. In the present embodiment, the secondary air waste pit air intake port 61 is connected to the primary air intake duct 40, and air is taken from the waste pit through the primary air intake duct 40. Of course, in other embodiments, the overfire air intake 61 of the refuse pit may be arranged directly at the top of the refuse pit for taking air from the refuse pit 10, as may the refuse pit intake 41 of the primary air intake duct 40. In addition, a valve is arranged at the air outlet 62 of the secondary air garbage pit air intake pipe 60 and used for adjusting the opening and closing of the air outlet 62 of the secondary air garbage pit air intake pipe 60. The valve is illustratively an electrically-operated shutoff valve that can be controlled to open and close by a controller connected thereto. The valve at the outlet 62 can be closed when there is no need to take air from the refuse pit as secondary air.
The overfire air furnace top take-off duct 70 is used for taking off air from the furnace top of the incinerator 20 and supplying the air as overfire air to the incinerator 20. One end of the secondary air furnace top air intake pipe 70 is provided with a secondary air furnace top air intake opening 71, and the other end is provided with an air outlet 72. The secondary air furnace top air intake port 71 of the secondary air furnace top air intake pipe 70 is arranged near the furnace top of the incinerator 20, and the gas near the furnace top enters the secondary air furnace top air intake pipe 70 through the secondary air furnace top air intake port 71 and enters the incinerator 20 through the air outlet 72. In addition, a valve is arranged at the air outlet 72 of the secondary air furnace top air taking pipe 70 and used for adjusting the opening and closing of the air outlet 72 of the secondary air furnace top air taking pipe 70. The valve is illustratively an electrically-operated shutoff valve that can be controlled to open and close by a controller connected thereto. When it is not necessary to take air from the top of the furnace as secondary air, the valve at the air outlet 72 can be closed.
The secondary fan 80 is used for guiding the gas in the secondary air garbage pit air intake pipe 60 or the secondary air furnace top air intake pipe 70 into the secondary air intake pipe 90 and further into the flue of the incinerator 20, namely guiding the gas near the garbage pit 10 or the furnace top into the flue of the incinerator 20 as secondary air. In this embodiment, the air inlet of the secondary air fan 80 is connected to the air outlet 62 of the secondary air garbage pit air intake duct 60 and the air outlet 72 of the secondary air furnace top air intake duct 70, and the air outlet of the secondary air fan 80 is connected to the secondary air inlet duct 90. Illustratively, in this embodiment, the air inlet of the secondary air fan 80 is connected to the air outlet 62 of the secondary air waste pit air intake pipe 60 and the air outlet 72 of the secondary air furnace top air intake pipe 70 through a three-phase pipe.
The secondary air inlet pipe 90 is used for guiding the gas in the secondary air garbage pit air intake pipe 60 or the secondary air furnace top air intake pipe 70 into the vertical flue of the incinerator 20 as secondary air so as to further combust the combustible gas in the flue.
The working principle of the waste incineration device 100 suitable for northern severe cold areas according to the embodiment is as follows:
in non-heating seasons, the temperature in the garbage pit 10 is higher, the garbage fermentation is normal, the odor in the garbage pit 10 is more, the bypass air doors of the furnace top air taking port 42 of the primary air taking pipe 40 and the secondary air furnace top air taking pipe 70 are closed, primary air and secondary air are taken from the garbage pit 10 through the garbage pit air taking port 41 of the primary air taking pipe 40, the air with the odor in the garbage pit is sent into the incinerator 20 for incineration treatment, and the odor escaping to pollute the environment of a factory is prevented.
In severe cold seasons, the temperature of the garbage entering the garbage pit 10 is low, and even ice and snow can be carried, so that the garbage in the garbage pit 10 is difficult to ferment, the garbage pit needs to be heated, if primary air and secondary air are drawn from the garbage pit 10 at the moment, a large amount of heat can be taken away, and the heating load can be increased; meanwhile, as the fermentation of the garbage in the garbage pit 10 is not ideal, and the generated odor is less than that under the normal condition, the air intake volume of the primary air and the secondary air in the garbage pit 10 can be properly reduced, and the specific operation is as follows: opening bypass air doors of a furnace top air intake port 42 of the primary air intake pipe 40 and an air outlet 72 of a secondary air furnace top air intake pipe 70, closing an air outlet 62 of a secondary air garbage pit air intake pipe 60, taking air from the furnace top of the boiler room by completely changing secondary air, taking air from the garbage pit 10 by a primary air part, taking air from the furnace top of the boiler room by a part, and enabling the air intake rate and the furnace top air intake rate in the garbage pit 10 to reach an optimal value by adjusting the opening degree of the furnace top air intake port 42: not only can prevent the odor in the garbage pit from escaping, but also can reduce the air intake of the garbage pit to the maximum extent. Meanwhile, because the boiler room of the waste incineration power plant is of a closed structure, the temperature of the top of the boiler room is higher and is about 40 ℃, so that partial air is taken from the top of the boiler room, the boiler efficiency can be improved, the heating load in winter in a waste pit can be reduced, and the heat efficiency of the power plant is improved.
According to the utility model discloses an burn burning furnace hot blast blowpipe apparatus and msw incineration device suitable for severe cold area in the north is through increasing one, the overgrate air furnace roof bypass of getting wind, reduce one, the amount of wind of getting of overgrate air in the rubbish hole, the part is from the boiler room furnace roof and is got wind, thereby can reduce the winter heating load in the rubbish hole, guarantee the temperature in the rubbish hole, promote the fermentation of rubbish in the rubbish hole in winter, improve the thermal efficiency of power plant, guarantee the stability of the northern severe cold area waste incineration power plant in winter, the safe operation.
Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Terms such as "disposed" and the like, as used herein, may refer to one element being directly attached to another element or one element being attached to another element through intervening elements. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is otherwise inapplicable or otherwise stated in the other embodiment.
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 (10)
1. The utility model provides an burn burning furnace hot blast blowpipe apparatus suitable for northern severe cold district, its characterized in that includes:
the device comprises a primary air taking pipe, a garbage pit air taking port and a furnace top air taking port are arranged at one end of the primary air taking pipe, and an air outlet is arranged at the other end of the primary air taking pipe;
the air inlet of the primary air fan is connected with the air outlet of the primary air intake pipe, and the air outlet of the primary air fan is connected with the primary air chamber of the incinerator;
the secondary air garbage pit air taking pipe is provided with a secondary air garbage pit air taking opening at one end and an air outlet at the other end;
the secondary air furnace top air taking pipe is provided with a secondary air furnace top air taking port at one end and an air outlet at the other end;
and the air inlet of the secondary fan is connected with the air outlet of the secondary air garbage pit air taking pipe and the air outlet of the secondary air furnace top air taking pipe, the air outlet of the secondary fan is connected with a secondary air inlet pipe, and the secondary air inlet pipe is used for guiding secondary air into a vertical flue of the incinerator.
2. The incinerator air intake device of claim 1, wherein the primary air intake duct has its refuse pit air intake opening arranged at the top of the refuse pit.
3. The incinerator air intake device of claim 1, wherein the top air intake port of the primary air intake duct is disposed near the incinerator top and adjacent to the refuse pit air intake port of the primary air intake duct.
4. The incinerator air intake device of claim 1, wherein the secondary air garbage pit air intake port of the secondary air garbage pit air intake pipe is connected to the primary air intake pipe or arranged at the top of the garbage pit.
5. The incinerator air intake device of claim 1, wherein a overfire air top intake port of the overfire air top intake duct is disposed near the incinerator top.
6. The incinerator air intake device of claim 1, wherein the air inlet of the secondary air fan is connected with the air outlet of the secondary air garbage pit air intake pipe and the air outlet of the secondary air furnace top air intake pipe through a three-phase pipe.
7. The incinerator air intake device of claim 1, wherein a valve is arranged at the furnace top air intake port of the primary air intake pipe for adjusting the opening degree of the furnace top air intake port of the primary air intake pipe.
8. The incinerator air intake device of claim 1, wherein a valve is arranged at the air outlet of the secondary air garbage pit air intake pipe for adjusting the opening degree of the air outlet of the secondary air garbage pit air intake pipe.
9. The incinerator air intake device of claim 1, wherein a valve is arranged at the air outlet of the secondary air furnace top air intake pipe for adjusting the opening degree of the air outlet of the secondary air furnace top air intake pipe.
10. A waste incineration device, characterized by comprising:
the garbage pit is used for storing garbage;
a garbage incinerator for incinerating garbage;
the feeding unit is used for conveying the garbage in the garbage pit to the garbage incinerator; and
an incinerator air inlet apparatus as claimed in any one of claims 1 to 9 for providing primary and secondary air to the waste incinerator.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921178674.5U CN210891675U (en) | 2019-07-24 | 2019-07-24 | Incinerator air inlet device suitable for northern severe cold area and waste incineration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921178674.5U CN210891675U (en) | 2019-07-24 | 2019-07-24 | Incinerator air inlet device suitable for northern severe cold area and waste incineration device |
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| CN210891675U true CN210891675U (en) | 2020-06-30 |
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| CN201921178674.5U Active CN210891675U (en) | 2019-07-24 | 2019-07-24 | Incinerator air inlet device suitable for northern severe cold area and waste incineration device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023124588A1 (en) * | 2021-12-27 | 2023-07-06 | 深圳能源环保股份有限公司 | Air draft system for preventing odor from escaping during furnace starting and stopping in waste incineration power plant |
-
2019
- 2019-07-24 CN CN201921178674.5U patent/CN210891675U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023124588A1 (en) * | 2021-12-27 | 2023-07-06 | 深圳能源环保股份有限公司 | Air draft system for preventing odor from escaping during furnace starting and stopping in waste incineration power plant |
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