CN209530546U - A kind of boiler with tailed denitrating system - Google Patents
A kind of boiler with tailed denitrating system Download PDFInfo
- Publication number
- CN209530546U CN209530546U CN201821692226.2U CN201821692226U CN209530546U CN 209530546 U CN209530546 U CN 209530546U CN 201821692226 U CN201821692226 U CN 201821692226U CN 209530546 U CN209530546 U CN 209530546U
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- China
- Prior art keywords
- ammonia
- burner hearth
- ejecting gun
- tailed
- boiler
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Abstract
The utility model discloses a kind of boiler with tailed denitrating systems, belong to chemical field；The technical problem to be solved is that a kind of comprehensive utilization ammonia is provided in hot stage and cold stage and reaction of nitrogen oxides, reach the content for reducing boiler with tailed nitrogen oxides in effluent；Solve the technical solution of technical problem use are as follows: a kind of boiler with tailed denitrating system, including burner hearth, burner hearth includes front flue and back-end ductwork, chimney is provided on the right side of burner hearth, left side is provided with tank used for storing ammonia, catalyst is provided in burner hearth back-end ductwork, ammonia water pipe is provided with above catalyst, ammonia water pipe is connected with tank used for storing ammonia, furnace front flue is provided with ejecting gun, it is provided with compressed air cylinder on the outside of ejecting gun, compressed air cylinder is connected with ejecting gun import, and tank used for storing ammonia is connected with ejecting gun import；The utility model can be widely applied to chemical field.
Description
Technical field
The utility model discloses a kind of boiler with tailed denitrating systems, belong to chemical technology field.
Background technique
Boiler with tailed flue-gas denitration process is the cloth in boiler back end ductwork by the way of in chemical field at present
Catalyst and ammonia water spray are set, ammonium hydroxide is melted into ammonia and reaction of nitrogen oxides production ammonia and water under the action of high-temperature flue gas,
Due to low efficiency, the minimum discharge standard of national requirements cannot be reached, while ammonia escape amount is larger causes back-end ductwork heated
The negative effect of face corrosion.
Utility model content
The utility model overcomes the shortcomings of the prior art, provide a kind of comprehensive utilization ammonia in hot stage and
Cold stage and reaction of nitrogen oxides reach the content for reducing boiler with tailed nitrogen oxides in effluent.
In order to solve the above-mentioned technical problem, a kind of the technical solution adopted in the utility model are as follows: boiler with tailed denitration
System, including burner hearth, burner hearth include front flue and back-end ductwork, chimney are provided on the right side of burner hearth 1, left side is provided with ammonium hydroxide storage
Tank is provided with catalyst in burner hearth back-end ductwork, is provided with ammonia water pipe above catalyst, ammonia water pipe is connected with tank used for storing ammonia, furnace
Thorax front flue is provided with ejecting gun, is provided with compressed air cylinder on the outside of ejecting gun, and compressed air cylinder is connected with ejecting gun import,
Tank used for storing ammonia is connected with ejecting gun import.
The quantity of the ejecting gun is 4, and the ammonia water pipe quantity is 4.
The tank used for storing ammonia exit is provided with aqua ammonia pump.
The utility model has the advantages that be equal in furnace front flue and back-end ductwork compared with prior art
Ammonium hydroxide import is set, and front flue is ejecting gun, and ammonium hydroxide is reacted with burner hearth participation is entered after compressed air mixed aerosol, in burner hearth
The ammonium hydroxide in portion gasifies under the action of high-temperature flue gas as the reaction of nitrogen oxides in the high-temperature flue gas inside ammonia and burner hearth, wherein
The ammonia not reacted completely reinforces ammonia and reaction of nitrogen oxides into back-end ductwork, through catalyst.
Detailed description of the invention
The utility model is described further with reference to the accompanying drawing.
Fig. 1 is the structural schematic diagram of the utility model.
1 it is burner hearth in figure, 2 be chimney, 3 be tank used for storing ammonia, 4 be front flue, 5 be back-end ductwork, 6 be catalyst, 7 is
Ammonia water pipe, 8 be ejecting gun, 9 be compressed air cylinder.
Specific embodiment
As shown in Figure 1, a kind of boiler with tailed denitrating system of the utility model, including burner hearth 1, burner hearth 1 include front
Flue 4 and back-end ductwork 5 are provided with chimney 2 on the right side of burner hearth 1, and left side is provided with tank used for storing ammonia 3, is arranged in 1 back-end ductwork of burner hearth
There is catalyst 6, ammonia water pipe 7 is provided with above catalyst 6, ammonia water pipe 7 is connected with tank used for storing ammonia 3, and 1 front flue of burner hearth is provided with
Ejecting gun 8 is provided with compressed air cylinder 9 on the outside of ejecting gun 8, and compressed air cylinder 9 is connected with 8 import of ejecting gun, tank used for storing ammonia 3 with
8 import of ejecting gun is connected, and the quantity of ejecting gun 8 is 4, and 7 quantity of ammonia water pipe is 4, and 3 exit of tank used for storing ammonia is provided with ammonia
Water pump.
When the utility model is used, ammonia water spray rifle is arranged on the flue of front, by ammonium hydroxide and compressed air mixing fog
It is injected directly into burner hearth after change and participates in reaction, ammonium hydroxide gasifies under the action of high-temperature flue gas as ammonia and high-temperature flue gas inside burner hearth
In reaction of nitrogen oxides, the ammonia not reacted completely arrived burner hearth back-end ductwork, passes through catalyst and reinforces ammonia and nitrogen oxidation
The reaction of object improves the utilization rate of ammonia, guarantees that the surplus capacity of ammonia is not exceeded while reducing nitrogen oxides in effluent,
Ammonia water pipe is provided on back-end ductwork, for supplementing ammonia vol.
The embodiments of the utility model have been described in detail above with reference to the accompanying drawings, but the utility model is not limited to
Embodiment is stated, within the knowledge of a person skilled in the art, the utility model aims can also not departed from
Under the premise of various changes can be made.
Claims (2)
1. a kind of boiler with tailed denitrating system, including burner hearth (1), burner hearth (1) includes front flue (4) and back-end ductwork
(5), it is provided with chimney (2) on the right side of burner hearth (1), left side is provided with tank used for storing ammonia (3), is provided with and is urged in burner hearth (1) back-end ductwork
Agent (6), catalyst (6) top are provided with ammonia water pipe (7), and ammonia water pipe (7) is connected with tank used for storing ammonia (3), it is characterised in that: furnace
Thorax (1) front flue is provided with ejecting gun (8), is provided with compressed air cylinder (9) on the outside of ejecting gun (8), compressed air cylinder (9) with
Ejecting gun (8) import is connected, and tank used for storing ammonia (3) is connected with ejecting gun (8) import；
Described tank used for storing ammonia (3) exit is provided with aqua ammonia pump.
2. a kind of boiler with tailed denitrating system according to claim 1, it is characterised in that: the ejecting gun (8)
Quantity be 4, the ammonia water pipe (7) quantity be 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821692226.2U CN209530546U (en) | 2018-10-18 | 2018-10-18 | A kind of boiler with tailed denitrating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821692226.2U CN209530546U (en) | 2018-10-18 | 2018-10-18 | A kind of boiler with tailed denitrating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209530546U true CN209530546U (en) | 2019-10-25 |
Family
ID=68247197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821692226.2U Active CN209530546U (en) | 2018-10-18 | 2018-10-18 | A kind of boiler with tailed denitrating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209530546U (en) |
-
2018
- 2018-10-18 CN CN201821692226.2U patent/CN209530546U/en active Active
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