CN220142872U - Denitration system in stove - Google Patents
Denitration system in stove Download PDFInfo
- Publication number
- CN220142872U CN220142872U CN202321660919.4U CN202321660919U CN220142872U CN 220142872 U CN220142872 U CN 220142872U CN 202321660919 U CN202321660919 U CN 202321660919U CN 220142872 U CN220142872 U CN 220142872U
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- CN
- China
- Prior art keywords
- connecting pipe
- denitration
- furnace
- pipe
- fixedly connected
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- 239000000428 dust Substances 0.000 claims abstract description 36
- 238000002485 combustion reaction Methods 0.000 claims abstract description 30
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000007664 blowing Methods 0.000 claims abstract description 17
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 11
- 239000003054 catalyst Substances 0.000 claims abstract description 10
- 239000007921 spray Substances 0.000 claims abstract description 8
- 238000005507 spraying Methods 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 21
- 239000003546 flue gas Substances 0.000 abstract description 21
- 239000007789 gas Substances 0.000 description 9
- 238000007599 discharging Methods 0.000 description 8
- 238000006555 catalytic reaction Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Landscapes
- Chimneys And Flues (AREA)
Abstract
The utility model belongs to the technical field of flue gas denitration equipment, and particularly relates to an in-furnace denitration system which comprises a combustion furnace, a denitration tower, a connecting pipe, a combustion spray head, an ammonia spraying frame, a guide plate and a catalyst layer, wherein the combustion furnace and the denitration tower are connected through connecting pipe bolts, an inner groove bolt of one end of the connecting pipe, which is close to the denitration tower, is connected with a dust screen, an inner wall bolt of one side of the connecting pipe, which is close to the dust screen, is connected with an air blowing pipe, a side wall of the connecting pipe, which is opposite to the air blowing pipe, is fixedly connected with an ash outlet guide plate, one side, which is close to the outside, of the ash outlet guide plate is fixedly connected with an installing plate, a collecting box is arranged at the top of the installing plate, a connecting flange is rotated at the top of the collecting box (13), and the connecting flange is fixed with the bottom end of the ash outlet guide plate through threads. The dust treatment and dust screen replacement can be performed without disassembly, so that the dust treatment device is convenient to use and improves the working efficiency.
Description
Technical Field
The utility model belongs to the technical field of flue gas denitration equipment, and particularly relates to an in-furnace denitration system.
Background
The combustion furnace can generate more flue gas in the middle-low temperature combustion process, and the flue gas contains harmful gas, so that the flue gas needs to be subjected to denitration treatment before the gas is discharged, and the denitration is carried out through catalytic reaction, so that nitrogen oxides in the gas are reduced, and the safety of discharged gas is ensured.
The retrieved authorized bulletin number is: the patent of CN210057843U discloses an SCR denitration system, which comprises a chimney and a controller, wherein a circular plate is fixedly arranged at the upper part of the inner cavity of the chimney, a plurality of cylinders are arranged at the top of the circular plate, the bottom ends of the cylinders penetrate through the circular plate, an SCR catalytic reactor is arranged in the middle of the inner cavity of the cylinders, a heater is fixedly arranged below the SCR catalytic reactor, a temperature sensor is arranged below the heater and above the heater, and a NOx concentration sensor and an ammonia concentration sensor are arranged in the inner cavity of the cylinders and above the heater;
the denitration system is in the flue gas in-process of handling, because contain more dust particle in the flue gas, generally before getting into catalytic reaction, block the filtration through dustproof construction, but dustproof filter screen after the filtration generally needs to dismantle equipment, then clear up or change, uses inconveniently, work efficiency is low moreover.
Disclosure of Invention
The utility model aims to provide an in-furnace denitration system so as to solve the technical problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a denitration system in stove, includes burning furnace, denitration tower, connecting pipe, combustion nozzle, ammonia spray frame, guide plate and catalyst layer, burning furnace and denitration tower pass through connecting pipe bolted connection, the connecting pipe is close to the inside groove bolted connection of denitration tower one end has the dust screen, one side inner wall bolted connection that the connecting pipe is close to the dust screen has the gas blow pipe, one side lateral wall fixedly connected with ash discharge guide plate of the relative gas blow pipe of connecting pipe, one side fixedly connected with ash discharge pipe that ash discharge guide plate leans on outward, the denitration tower is close to ash discharge guide plate below outer wall fixedly connected with mounting panel, the mounting panel top is equipped with the collecting box, collecting box top rotates flange, flange passes through screw thread with ash discharge pipe bottom.
Further, the combustion nozzle is arranged at the bottom of the inner groove of the combustion furnace, the ammonia spraying frame penetrates through the side wall of the combustion furnace and is arranged at a position close to the upper part of the combustion nozzle, and the guide plate and the catalyst layer are sequentially arranged inside the denitration tower from top to bottom.
Furthermore, the ash discharge guide plate is provided with a flow guide port in a penetrating way, and the inner groove wall of the flow guide port is fixedly connected with a conical through plate.
Further, the inner groove wall of the connecting pipe is fixedly connected with a diversion cone, the outer wall of the connecting pipe opposite to the air blowing pipe is connected with a fan through bolts, and the fan is communicated with the air blowing pipe.
Further, the bottom of the collecting box is fixedly connected with a mounting bar, a chute is formed in one side, close to the outer side, of the top of the mounting plate, and the mounting bar and the chute are adapted to slide.
Further, the inner groove wall of the inner end close to the sliding groove is connected with an electromagnetic lock rod in an embedded mode, the position of the installation bar, corresponding to the electromagnetic lock rod, is provided with a magnetic attraction groove, the electromagnetic lock rod is connected with the magnetic attraction groove in an inserting mode and in a magnetic attraction mode, the bottom of the installation plate is connected with an electromagnetic control box through a bolt, and the electromagnetic control box is electrically connected with the electromagnetic lock rod.
Compared with the prior art, the utility model has the beneficial effects that:
when the dust-proof dust-collecting device is used, the flue gas is filtered through the dust-proof net before entering the denitration tower, dust in the flue gas is filtered out, and then the filtered dust enters and exits into the collecting structure through the inclined dust-proof net and the air blowing structure near the upper end of the dust-proof net, so that the dust is recovered, and the dust-collecting device can be used for treating the dust and replacing the dust-proof net without being disassembled after long-time use, so that the dust-proof dust-collecting device is convenient to use and improves the working efficiency; the dust after filtering is guided and collected into the collecting box through the dust outlet guide plate, and then the collecting box is conveniently disassembled and assembled through external connection, and the collecting box is disassembled, cleaned and replaced after being filled.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic cross-sectional view of the present utility model;
FIG. 2 is a schematic perspective view of the present utility model;
FIG. 3 is a schematic perspective view of an ash guide plate according to the present utility model;
fig. 4 is an enlarged schematic view of the structure of fig. 1 a according to the present utility model.
In the figure: 1. a combustion furnace; 2. a denitration tower; 3. a connecting pipe; 4. a combustion nozzle; 5. an ammonia spraying frame; 6. a deflector; 7. a catalyst layer; 8. a dust screen; 9. an air blowing pipe; 10. an ash discharge guide plate; 11. an ash discharging pipe; 12. a mounting plate; 13. a collection box; 14. a connecting flange; 15. a diversion port; 16. a conical through plate; 17. a diversion cone; 18. a blower; 19. a mounting bar; 20. a chute; 21. an electromagnetic lock rod; 22. a magnetic attraction groove; 23. electromagnetic control box.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. 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.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the utility model.
Example 1
Please refer to fig. 1-4: an in-furnace denitration system comprises a combustion furnace 1, a denitration tower 2, a connecting pipe 3, a combustion spray nozzle 4, an ammonia spraying frame 5, a guide plate 6 and a catalyst layer 7, wherein the combustion furnace 1 and the denitration tower 2 are connected through the connecting pipe 3 through bolts, the combustion spray nozzle 4 is arranged at the bottom of an inner groove of the combustion furnace 1, the ammonia spraying frame 5 penetrates through the side wall of the combustion furnace 1 and is arranged at the position close to the upper part of the combustion spray nozzle 4, the guide plate 6 and the catalyst layer 7 are sequentially arranged inside the denitration tower 2 from top to bottom, an air inlet pipe is arranged on the side wall of the combustion furnace 1, an air outlet pipe is arranged at the bottom of the denitration tower 2, flue gas generated by medium-low temperature combustion is sprayed out of flame by the combustion spray nozzle 4 in the combustion furnace 1, then the flue gas is sprayed out of the neutralizing gas through the ammonia spraying frame 5, the flue gas enters the denitration tower 2 through the connecting pipe 3, the filtered flue gas enters the denitration tower 2 and is downwards conveyed through the guide plate 6, then the waste gas is catalyzed by a plurality of catalyst layers 7 to be subjected to denitration treatment, finally, the waste gas is discharged by an air outlet pipe at the bottom of the denitration tower 2, an inner groove bolt of a connecting pipe 3 close to one end of the denitration tower 2 is connected with a dust screen 8, an inner wall bolt of one side of the connecting pipe 3 close to the dust screen 8 is connected with an air blowing pipe 9, an ash discharging guide plate 10 is fixedly connected with one side wall of the connecting pipe 3 opposite to the air blowing pipe 9, the ash discharging guide plate 10 is convenient for guiding and collecting dust blown by the air blowing pipe 9, the efficiency of dust treatment is improved, an ash discharging pipe 11 is fixedly connected with one side of the ash discharging guide plate 10, a mounting plate 12 is fixedly connected with the outer wall of the denitration tower 2 close to the lower part of the ash discharging guide plate 10, the mounting plate 12 is provided with a collecting box 13 in a sliding mounting mode, the top of the collecting box 13 is provided with a top cover, the inside dust is convenient to be opened, the flange 14 is rotated at collecting box 13 top, and flange 14 top is equipped with the internal thread fluting, and goes out ash pipe 11 outer arc wall and be equipped with the external screw thread, and flange 14 and go out ash pipe 11 both pass through the screw thread to be fixed, through screw thread pivoted mode for collecting box 13's dismouting connection is convenient and fast more.
The ash discharge guide plate 10 is communicated with and is provided with a flow guide opening 15, an inner groove wall of the flow guide opening 15 is fixedly connected with a conical through plate 16, a through groove of the conical through plate 16 is inclined in a conical manner, dust is discharged and collected through the flow guide opening 15 and the conical through plate 16, the conical through plate 16 can effectively prevent the dust from flowing reversely, the collection is stable and efficient, the inner groove wall of the connecting pipe 3 is fixedly connected with a flow guide cone 17, the connecting pipe 3 is connected with a fan 18 relative to an outer wall bolt of the air blowing pipe 9, the fan 18 is communicated with the air blowing pipe 9, the dust is recovered in a blowing treatment mode, and the dust recovery efficiency is improved.
Example two
As shown in fig. 1 and 4, further improvement is made on the basis of example 1:
for convenience dust recovery processing, the spout 20 has been seted up through mounting panel 12 top outside one side, spout 20 inside groove adaptation slip has mounting bar 19, mounting bar 19 fixed connection is in collection box 13 bottom, mounting bar 19 has been seted up inside one side and has been inhaled groove 22, the groove 22 grafting is inhaled to the magnetism and is connected with electromagnetism locking lever 21, the built-in fixed interior cell wall of connecting in spout 20 inside one end of electromagnetism locking lever 21, mounting panel 12 bottom bolted connection has electromagnetic control case 23, and electromagnetic control case 23 and electromagnetism locking lever 21 electric connection, collection box 13 passes through slidable mounting, and electromagnetic locking's mounting means, make the dismouting of collection box 13 change more convenient high efficiency, thereby make dust recovery processing convenient high efficiency.
Working principle: when the flue gas purifying device is used, flue gas generated by low-temperature combustion in the combustion spray head 4 in the combustion furnace 1 flows to the connecting pipe 3, neutral gas is sprayed out through the ammonia spraying frame 5, then the flue gas enters the denitration tower 2 through the connecting pipe 3, in the process, the flue gas is guided through the guide cone 17 to prevent the flue gas from flowing back, then the flue gas filters dust through the dust screen 8, the filtered flue gas enters the denitration tower 2, is conveyed downwards through the guide plate 6, then is subjected to catalytic reaction through the multi-layer catalyst layer 7 to perform denitration treatment, finally is discharged through the air outlet pipe at the bottom of the denitration tower 2, the dust filtered by the dust screen 8 is positioned on the surface of the flue gas purifying device, at the moment, the fan 18 is started, gas is sprayed out through the air blowing pipe 9, the dust is blown into the dust guide plate 10, and is conveyed forwards through the guide opening 15 and the conical through the ash discharging pipe 11 to the collecting box 13 for recycling; when dust needs to be treated, the electromagnetic control box 23 is powered off firstly, so that magnetism of the electromagnetic lock rod 21 disappears, then the connecting flange 14 is rotated to be separated from the ash discharging pipe 11, then the collecting box 13 is drawn out by sliding the mounting strip 19 in the sliding chute 20, the electromagnetic lock rod 21 is separated from the magnetic suction groove 22, and disassembly can be completed, otherwise, installation replacement can be completed, and the dust collecting device is efficient and convenient to use.
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 (6)
1. The utility model provides a denitration system in stove, includes burning furnace (1), denitration tower (2), connecting pipe (3), burning shower nozzle (4), ammonia spray rack (5), guide plate (6) and catalyst layer (7), burning furnace (1) and denitration tower (2) pass through connecting pipe (3) bolted connection, its characterized in that: the utility model discloses a denitration tower, including connecting pipe (3), collecting box (13), connecting flange (14) are rotated at collecting box (13) top, connecting flange (14) are passed through the screw thread with ash pipe (11) bottom and are fixed, connecting pipe (3) are close to inside groove bolted connection dust screen (8) of denitration tower (2) one end, connecting pipe (3) are close to one side inner wall bolted connection of dust screen (8) has air-blowing pipe (9), one side lateral wall fixedly connected with ash guide (10) of connecting pipe (3) relative air-blowing pipe (9), one side fixedly connected with ash pipe (11) outside ash guide (10), denitration tower (2) are close to ash guide (10) below outer wall fixedly connected with mounting panel (12), mounting panel (12) top is equipped with collecting box (13), connecting flange (14) are rotated at collecting box (13) top.
2. The in-furnace denitration system according to claim 1, wherein the combustion nozzle (4) is arranged at the bottom of an inner groove of the combustion furnace (1), the ammonia spraying frame (5) penetrates through the side wall of the combustion furnace (1) and is arranged at a position close to the upper position of the combustion nozzle (4), and the guide plate (6) and the catalyst layer (7) are sequentially arranged inside the denitration tower (2) from top to bottom.
3. The in-furnace denitration system according to claim 1, wherein the ash discharge guide plate (10) is provided with a diversion port (15) in a penetrating way, and the inner groove wall of the diversion port (15) is fixedly connected with a conical through plate (16).
4. The in-furnace denitration system according to claim 1, wherein the inner groove wall of the connecting pipe (3) is fixedly connected with a diversion cone (17), the outer wall of the connecting pipe (3) opposite to the air blowing pipe (9) is connected with a fan (18) through bolts, and the fan (18) is communicated with the air blowing pipe (9).
5. The in-furnace denitration system according to claim 1, wherein a mounting bar (19) is fixedly connected to the bottom of the collection box (13), a sliding groove (20) is formed in one side, which is close to the outer side, of the top of the mounting plate (12), and the mounting bar (19) and the sliding groove (20) are adapted to slide.
6. The denitration system in a furnace according to claim 5, wherein an electromagnetic lock rod (21) is connected to an inner groove wall of the inner end of the chute (20) in an embedded manner, a magnetic suction groove (22) is formed in the position of the installation bar (19) opposite to the electromagnetic lock rod (21), the electromagnetic lock rod (21) is inserted into and magnetically connected with the magnetic suction groove (22), an electromagnetic control box (23) is connected to the bottom of the installation plate (12) through bolts, and the electromagnetic control box (23) is electrically connected with the electromagnetic lock rod (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321660919.4U CN220142872U (en) | 2023-06-28 | 2023-06-28 | Denitration system in stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321660919.4U CN220142872U (en) | 2023-06-28 | 2023-06-28 | Denitration system in stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220142872U true CN220142872U (en) | 2023-12-08 |
Family
ID=89016647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321660919.4U Active CN220142872U (en) | 2023-06-28 | 2023-06-28 | Denitration system in stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220142872U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118001922A (en) * | 2024-04-09 | 2024-05-10 | 云南省节能技术开发经营有限责任公司 | Flue gas denitration system for treating steam by using industrial waste liquid in cooperation with biomass fuel |
-
2023
- 2023-06-28 CN CN202321660919.4U patent/CN220142872U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118001922A (en) * | 2024-04-09 | 2024-05-10 | 云南省节能技术开发经营有限责任公司 | Flue gas denitration system for treating steam by using industrial waste liquid in cooperation with biomass fuel |
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