CN219735365U - Boiler tail gas denitrification facility - Google Patents

Boiler tail gas denitrification facility Download PDF

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Publication number
CN219735365U
CN219735365U CN202321164888.3U CN202321164888U CN219735365U CN 219735365 U CN219735365 U CN 219735365U CN 202321164888 U CN202321164888 U CN 202321164888U CN 219735365 U CN219735365 U CN 219735365U
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China
Prior art keywords
tail gas
boiler tail
dust
outlet pipe
air outlet
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CN202321164888.3U
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Chinese (zh)
Inventor
刘旭辉
崔春
张宝辉
刘辉
王军
于晓
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Longkou Jiayuan Dongsheng Thermal Power Co ltd
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Longkou Jiayuan Dongsheng Thermal Power Co ltd
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Abstract

The utility model is applicable to the technical field of boiler tail gas denitration equipment, and particularly relates to a boiler tail gas denitration device which comprises a support base, wherein the boiler tail gas denitration device further comprises: and the induced draft fan is arranged on the upper side of the support base, and two sides of the outer side of the induced draft fan are respectively connected with a second air outlet pipe and a connecting pipe. According to the utility model, the dust collected in the filter chamber can be automatically cleaned from the filter chamber by arranging the filter chamber, the dust filter screen, the first air inlet pipe, the first electric air valve, the first air outlet pipe, the second electric air valve, the through hole, the sealing plate and the turnover assembly, and the boiler tail gas in the filter system can be kept in a flowing state all the time even when the dust collected in the filter system is cleaned, so that the high efficiency of the boiler tail gas denitration device for treating the dust in the boiler tail gas is improved.

Description

Boiler tail gas denitrification facility
Technical Field
The utility model relates to the technical field of boiler tail gas denitration equipment, in particular to a boiler tail gas denitration device.
Background
The boiler is an energy conversion device, the energy input to the boiler is chemical energy and electric energy in fuel, and the boiler outputs steam, high temperature water or organic heat carrier with certain heat energy. During the operation of the boiler, a large amount of flue gas and waste gas generated in the boiler body fly to the surrounding atmosphere, and the flue gas and waste gas contains a large amount of substances harmful to the air, and if the flue gas and the waste gas are not treated, the environment is polluted. The exhaust gas produced by industrial boilers contains a large amount of nitrogen oxides, and therefore, it is necessary to perform denitration treatment on the boiler exhaust gas before it is discharged to the atmosphere.
At present, the denitration mode of boiler tail gas is that tail gas generated by a boiler is led into a denitration tower so that the denitration tower carries out denitration treatment on the tail gas, but because a large amount of dust is mixed in the boiler tail gas, the dust is easy to gather on the inner wall of the denitration tower after entering the denitration tower, and then normal denitration operation of the denitration tower can be seriously influenced. Therefore, in the prior art, before the boiler tail gas is introduced into the denitration tower, granular dust in the boiler tail gas is filtered.
The existing dedusting measures for denitration of boiler tail gas have the technical defects that a large amount of dust filtered by a dust filter screen cannot be automatically and efficiently cleaned out from a filter chamber and collected when the existing dedusting measures are used.
Disclosure of Invention
The embodiment of the utility model aims to provide a boiler tail gas denitration device, which aims to solve the following problems: the existing dedusting measures for denitration of boiler tail gas have the technical defects that a large amount of dust filtered by a dust filter screen cannot be automatically and efficiently cleaned out from a filter chamber and collected when the existing dedusting measures are used.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a boiler tail gas denitrification facility, includes the support base, boiler tail gas denitrification facility still includes:
the induced draft fan is arranged on the upper side of the support base, and two sides of the outer side of the induced draft fan are respectively connected with a second air outlet pipe and a connecting pipe;
the support frame is connected to the upper side of the support base, two filter chambers are connected to the outer side of the support frame, a first air inlet pipe and a first air outlet pipe are connected to the two sides of the outer sides of the two filter chambers, a first electric air valve and a second electric air valve are respectively installed on the outer sides of the first air inlet pipe and the first air outlet pipe, one ends of the two first air inlet pipes are connected with the second air inlet pipe together, a dust filter screen is installed in the filter chambers, a partition plate is connected to the filter chambers, through holes are formed in the surfaces of the partition plate, a first hinge is installed on the lower side of the partition plate, and a sealing plate is connected to the outer sides of the first hinge; and
the two groups of overturning assemblies are respectively arranged at the lower sides of the two partition boards and used for driving the sealing plate to rotate through the first hinge.
Further, one end of the first air outlet pipe far away from the filtering chamber is communicated with the inside of the second air outlet pipe.
Further, the dust filter screen is arranged between the partition plate and the filter chamber, and the through holes are formed in the side face of the dust filter screen.
Further, the flipping assembly includes:
the installation block is connected to the lower side of the partition plate, and an electric telescopic rod is arranged on the side surface of the installation block; and
the pulling slide rail is arranged at the lower side of the sealing plate, the interior of the pulling slide rail is connected with a pulling slide block in a sliding manner, and a second hinge is arranged at the outer side of the pulling slide block and one end of the electric telescopic rod together.
Further, the boiler tail gas denitrification device further comprises: the dust collection hopper is connected to the upper side of the support base, the spiral conveying barrel is connected to the outer side of the dust collection hopper, a driving motor is installed on the side face of the spiral conveying barrel, spiral conveying blades are installed in the spiral conveying barrel in a rotating mode, and a trash discharging pipeline is arranged on the outer side of the spiral conveying barrel.
According to the boiler tail gas denitration device provided by the utility model, the dust collected in the filter chamber can be automatically cleaned from the filter chamber by arranging the filter chamber, the dust filter screen, the first air inlet pipe, the first electric air valve, the first air outlet pipe, the second electric air valve, the through hole, the sealing plate and the turnover assembly, and the boiler tail gas in the filter system can be kept in a flowing state all the time even when the dust collected in the filter system is cleaned, so that the high efficiency of the boiler tail gas denitration device for treating the dust in the boiler tail gas is improved.
Drawings
Fig. 1 is a schematic structural diagram of a boiler tail gas denitration device.
Fig. 2 is an enlarged view of a portion a of fig. 1 of a boiler tail gas denitration device.
In the figure: 1. a support base; 2. a dust collection hopper; 3. a support frame; 4. a filtering chamber; 5. a first electrically operated air valve; 6. a first air inlet pipe; 7. a second air inlet pipe; 8. a dust filter screen; 9. a trash discharging pipeline; 10. a screw conveying cylinder; 11. spiral conveying blades; 12. a driving motor; 13. a first air outlet pipe; 14. a second electrically operated air valve; 15. a second air outlet pipe; 16. an induced draft fan; 17. a connecting pipe; 18. a through hole; 19. a sealing plate; 20. pulling the slide rail; 21. pulling the sliding block; 22. an electric telescopic rod; 23. a mounting block; 24. a first hinge; 25. a partition board.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Specific implementations of the utility model are described in detail below in connection with specific embodiments.
As shown in fig. 1-2, the boiler tail gas denitration device provided by the embodiment of the utility model includes a support base 1, and the boiler tail gas denitration device further includes:
the induced draft fan 16 is arranged on the upper side of the support base 1, two sides of the outer side of the induced draft fan 16 are respectively connected with the second air outlet pipe 15 and the connecting pipe 17, one end of the connecting pipe 17 is communicated with the denitration tower, and one end of the second air inlet pipe 7 is communicated with the boiler tail gas discharge pipe;
the support frame 3 is connected to the upper side of the support base 1, two filter chambers 4 are connected to the outer side of the support frame 3, a first air inlet pipe 6 and a first air outlet pipe 13 are connected to two sides of the outer sides of the two filter chambers 4, a first electric air valve 5 and a second electric air valve 14 are respectively installed on the outer sides of the first air inlet pipe 6 and the first air outlet pipe 13, one ends of the two first air inlet pipes 6 are jointly connected with a second air inlet pipe 7, a dust filter screen 8 is installed in the filter chamber 4, a partition plate 25 is connected to the inner side of the filter chamber 4, a through hole 18 is formed in the surface of the partition plate 25, a first hinge 24 is installed on the lower side of the partition plate 25, a sealing plate 19 is connected to the outer side of the first hinge 24, one end, away from the filter chamber 4, of the first air outlet pipe 13 is communicated with the inner side of the second air outlet pipe 15, the dust filter screen 8 is arranged between the partition plate 25 and the filter chamber 4, and the through hole 18 is arranged on the side surface of the dust filter screen 8; and
the two groups of turnover assemblies are respectively arranged at the lower sides of the two partition plates 25 and are used for driving the sealing plate 19 to rotate through the first hinge 24;
the flip assembly includes:
a mounting block 23 connected to the lower side of the partition 25, and a side surface of the mounting block 23 is mounted with an electric telescopic rod 22;
and
the pulling slide rail 20 is installed at the lower side of the sealing plate 19, the pulling slide rail 20 is internally and slidably connected with a pulling slide block 21, and a second hinge is installed at the outer side of the pulling slide block 21 and one end of the electric telescopic rod 22 together.
In one embodiment of the utility model, when the boiler exhaust gas is dedusted, the first air outlet pipe 13 connected to one filtering chamber 4 and the first electric air valve 5 and the second electric air valve 14 arranged outside the first air inlet pipe 6 are kept in an open state, the first air outlet pipe 13 connected to the other filtering chamber 4 and the first electric air valve 5 and the second electric air valve 14 arranged outside the first air inlet pipe 6 are kept in a closed state, so that the boiler exhaust gas can always flow in a filtering system even when the dust filtered by the dust filtering net 8 in the filtering chamber 4 is cleaned, and when the dust in the filtering chamber 4 is cleaned, the dust in the filtering chamber 4 corresponding to the first electric air valve 5 and the second electric air valve 14 in the closed state is cleaned, which is specifically operated by opening the electric telescopic rod 22, the electric telescopic rod 22 drives the traction slide block 21 to slide in the traction slide rail 20, so that the sealing plate 19 rotates at the lower side of the filtering chamber 4 through the cooperation of the first hinge 24, the traction slide block 21, the traction slide rail 20 and the second hinge, so that dust originally arranged on the sealing plate 19 is discharged from the sealing plate 19 under the action of gravity, the dust filtered by the dust filtering net 8 is cleaned, then the electric telescopic rod 22 and the sealing plate 19 are restored to the original position, the first electric air valve 5 and the second electric air valve 14 corresponding to the filtering chamber 4 are opened, the first electric air valve 5 and the second electric air valve 14 corresponding to the other filtering chamber 4 are closed, then the dust collected in the filtering chamber 4 is cleaned, through the technical scheme, the dust collected in the filtering chamber 4 can be automatically cleaned from the filtering chamber 4, and even when the dust collected in the filtering system is cleaned, the boiler tail gas in the filtering system can always keep a flowing state, so that the high efficiency of the boiler tail gas denitration device for dust treatment in the boiler tail gas is improved.
As shown in fig. 1, in one embodiment of the present utility model, the boiler tail gas denitration device further includes: the dust collection hopper 2 is connected to the upper side of the support base 1, the outside of the dust collection hopper 2 is connected with the spiral conveying cylinder 10, a driving motor 12 is installed on the side face of the spiral conveying cylinder 10, a spiral conveying blade 11 is installed in the spiral conveying cylinder 10 in a rotating mode, and a trash discharging pipeline 9 is arranged on the outside of the spiral conveying cylinder 10.
In this embodiment, the dust that falls out from the through-hole 18 can directly fall into the inside of dust collection fill 2 to in the direction of dust collection fill 2 get into the inside of screw conveyer section of thick bamboo 10, for the unified collection of this dust together, can also open driving motor 12, driving motor 12 drive screw conveyer blade 11 rotates in the inside of screw conveyer section of thick bamboo 10, so that screw conveyer section of thick bamboo 10 constantly sends the dust to the trash removal pipeline 9 department, and discharge dust collection fill 2 through trash removal pipeline 9 and collect, through above-mentioned technical scheme, can be convenient and quick with a large amount of dust unified collection.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (5)

1. The utility model provides a boiler tail gas denitrification facility, includes the support base, its characterized in that, boiler tail gas denitrification facility still includes:
the induced draft fan is arranged on the upper side of the support base, and two sides of the outer side of the induced draft fan are respectively connected with a second air outlet pipe and a connecting pipe;
the support frame is connected to the upper side of the support base, two filter chambers are connected to the outer side of the support frame, a first air inlet pipe and a first air outlet pipe are connected to the two sides of the outer sides of the two filter chambers, a first electric air valve and a second electric air valve are respectively installed on the outer sides of the first air inlet pipe and the first air outlet pipe, one ends of the two first air inlet pipes are connected with the second air inlet pipe together, a dust filter screen is installed in the filter chambers, a partition plate is connected to the filter chambers, through holes are formed in the surfaces of the partition plate, a first hinge is installed on the lower side of the partition plate, and a sealing plate is connected to the outer sides of the first hinge; and
the two groups of overturning assemblies are respectively arranged at the lower sides of the two partition boards and used for driving the sealing plate to rotate through the first hinge.
2. The boiler tail gas denitration device according to claim 1, wherein one end of the first air outlet pipe away from the filtering chamber is communicated with the interior of the second air outlet pipe.
3. A boiler tail gas denitration device according to claim 1, wherein the dust filter screen is arranged between the partition board and the filter chamber, and the through holes are arranged on the side surfaces of the dust filter screen.
4. The boiler tail gas denitration device of claim 1, wherein the turnover assembly comprises:
the installation block is connected to the lower side of the partition plate, and an electric telescopic rod is arranged on the side surface of the installation block; and
the pulling slide rail is arranged at the lower side of the sealing plate, the interior of the pulling slide rail is connected with a pulling slide block in a sliding manner, and a second hinge is arranged at the outer side of the pulling slide block and one end of the electric telescopic rod together.
5. The boiler tail gas denitration device of claim 1, wherein the boiler tail gas denitration device further comprises: the dust collection hopper is connected to the upper side of the support base, the spiral conveying barrel is connected to the outer side of the dust collection hopper, a driving motor is installed on the side face of the spiral conveying barrel, spiral conveying blades are installed in the spiral conveying barrel in a rotating mode, and a trash discharging pipeline is arranged on the outer side of the spiral conveying barrel.
CN202321164888.3U 2023-05-12 2023-05-12 Boiler tail gas denitrification facility Active CN219735365U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321164888.3U CN219735365U (en) 2023-05-12 2023-05-12 Boiler tail gas denitrification facility

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321164888.3U CN219735365U (en) 2023-05-12 2023-05-12 Boiler tail gas denitrification facility

Publications (1)

Publication Number Publication Date
CN219735365U true CN219735365U (en) 2023-09-22

Family

ID=88031036

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321164888.3U Active CN219735365U (en) 2023-05-12 2023-05-12 Boiler tail gas denitrification facility

Country Status (1)

Country Link
CN (1) CN219735365U (en)

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