CN205774282U - A kind of reduce the system of nitrogen oxides in coke oven exhaust gas - Google Patents
A kind of reduce the system of nitrogen oxides in coke oven exhaust gas Download PDFInfo
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- CN205774282U CN205774282U CN201620475024.7U CN201620475024U CN205774282U CN 205774282 U CN205774282 U CN 205774282U CN 201620475024 U CN201620475024 U CN 201620475024U CN 205774282 U CN205774282 U CN 205774282U
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- waste gas
- supervisor
- coke oven
- bottom flue
- gas supervisor
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Abstract
This utility model relates to a kind of reducing the system of nitrogen oxides in coke oven exhaust gas, including bottom flue and exchange shutter/bell and spigot, also including waste gas arm and waste gas supervisor one, the waste gas supervisor two drawn respectively from each tines, described waste gas arm is connected with waste gas supervisor one or waste gas supervisor two by the compartment of terrain that puts in order；Waste gas supervisor one connects formation annular exhaust steam passage with the two ends of waste gas supervisor two, setting adjustable speed blower fan and supervisor's control valve on waste gas supervisor one and waste gas supervisor two respectively, adjustable speed blower fan connects coke oven control system respectively and realizes linkage with coke oven heating system commutation actuator.This utility model can increase the waste gas circulation amount of coke oven, reduces combustion intensity, reduces amount of nitrogen oxides in coke oven exhaust gas；System structure is simple, small investment, and instant effect is easy to adjust, and can realize automatically controlling.
Description
Technical field
This utility model relates to coke oven environmental technology field, particularly relates to a kind of reduce the system of nitrogen oxides in coke oven exhaust gas.
Background technology
In process of production, the burning in coke oven combustion chamber of coal gas and air can produce nitrogen oxides (NO to coke ovenX).These contain
If the gas of nitrogen oxides is directly discharged in air by coke oven chimney, it will damage the ozone layer, cause acid rain, dirty
Dye environment.Along with China's pay attention to day by day to environmental problem, the discharge standard of nitrogen oxides in coke oven exhaust gas be have also been made more
Add strict regulation, and the nitrous oxides concentration of current domestic overwhelming majority coke oven discharge all exceeds standard.
Being currently used for reducing the technology of nitrous oxides concentration in coke oven exhaust gas and mainly have two kinds, the first is with waste gas circulation and segmentation
Heating etc. is main coke oven construction Optimization Design, although the method can be greatly reduced the concentration of nitrogen oxides, but can't
Meet country to the discharge standard of nitrogen oxides in coke oven exhaust gas；Its two be to discharge waste gas carry out denitration process, though the method
The concentration of nitrogen oxides so also can be greatly reduced, but its disadvantage is that processing means investment is huge, takes up an area more, running cost
With high, significantly limit the universal of this technology and application.
Summary of the invention
This utility model provides and a kind of reduces the system of nitrogen oxides in coke oven exhaust gas, can increase the waste gas circulation amount of coke oven,
Reduce combustion intensity, reduce amount of nitrogen oxides in coke oven exhaust gas；Described system structure is simple, small investment, instant effect, adjusts
Joint is convenient, and can realize automatically controlling.
In order to achieve the above object, this utility model realizes by the following technical solutions:
A kind of reduce the system of nitrogen oxides in coke oven exhaust gas, including bottom flue and exchange shutter/bell and spigot, exchange opening and closing
Device/bell and spigot is made up of cylinder and tines, and bottom flue is made up of air regenerator bottom flue and gas regenerator bottom flue,
Tines connects air regenerator bottom flue and gas regenerator bottom flue respectively；Also include drawing respectively from each tines
Waste gas arm and waste gas supervisor one, waste gas supervisor two, described waste gas arm by put in order compartment of terrain and waste gas supervisor one or
Waste gas supervisor two is connected；Waste gas supervisor one connects formation annular exhaust steam passage, waste gas supervisor's one He with the two ends of waste gas supervisor two
Waste gas supervisor two on set respectively adjustable speed blower fan and supervisor control valve, adjustable speed blower fan connect respectively coke oven control system and with Jiao
The commutation actuator of stove heating system realizes linkage.
It is respectively equipped with arm control valve on described waste gas arm.
Compared with prior art, the beneficial effects of the utility model are:
1) it is effectively increased the waste gas circulation amount of coke oven, reduces combustion intensity, reduce amount of nitrogen oxides in coke oven exhaust gas, real
Existing coking waste gas qualified discharge, reduces the pollution to environment；
2) system structure described in the utility model is simple, small investment, and instant effect is easy to adjust, and can realize automatically controlling.
Accompanying drawing explanation
Fig. 1 is the structural representation of system described in the utility model.
Fig. 2 is the structural representation that waste gas arm described in the utility model is drawn from tines.
In figure: 1. bottom flue 2. exchange shutter 3. tines 4A. waste gas is responsible for a 4B. waste gas supervisor two
Control valve 7. waste gas arm 8. coke oven control system 9. arm control valve is responsible for by 5A/5B. adjustable speed blower fan 6.
Detailed description of the invention
Below in conjunction with the accompanying drawings detailed description of the invention of the present utility model is described further:
A kind of the system of nitrogen oxides in coke oven exhaust gas is reduced, including bottom flue 1 He as it is shown in figure 1, described in the utility model
Exchange shutter 2/ bell and spigot, exchange shutter 2/ bell and spigot is made up of cylinder and tines 3, and bottom flue 1 is stored by air
Hot cell bottom flue and gas regenerator bottom flue composition, tines 3 connects air regenerator bottom flue and gas regenerator respectively
Bottom flue；Also include that the waste gas arm 7 drawn respectively from each tines 3 and waste gas are responsible for a 4A, waste gas supervisor two
4B, described waste gas arm 7 is responsible for a 4A by the compartment of terrain that puts in order with waste gas or waste gas is responsible for two 4B and is connected；Waste gas is responsible for
One 4A is responsible for the two ends of two 4B and connects formation annular exhaust steam passage with waste gas, and waste gas is responsible for a 4A and waste gas is responsible on two 4B
Setting adjustable speed blower fan 5A/5B and supervisor's control valve 6 respectively, adjustable speed blower fan 5A, 5B connect coke oven control system 8 respectively
And realize linkage with coke oven heating system commutation actuator.
It is respectively equipped with arm control valve 9 on described waste gas arm 7.
It is described in the utility model that a kind of to reduce the operation principle of the system of nitrogen oxides in coke oven exhaust gas be that coke oven heating system is held
During row switch operation, from the bottom flue 1 with down current, draw decline waste gas by waste gas arm 7, decline waste gas and converge
After entering waste gas supervisor 4A/4B, then introduced by waste gas arm 7 in the bottom flue 1 with ascending air；Waste gas outlet and
Intake is arranged at exchange shutter 2/ bell and spigot that is connected with bottom flue 1.
During coke oven heating system commutation, adjacent bottom flue 1 is respectively provided with down current or ascending air；Such as a switch operation
Time, with the odd number hole bottom flue in string bottom flue 1, there is down current, and even hole bottom flue has ascending air, this
Time by the bottom flue of odd number hole decline waste gas introduce even hole bottom flue ascending air in；Again during switch operation, same
Odd number hole bottom flue in row bottom flue 1 has ascending air, and even hole bottom flue has down current, now by even number
Declining in the ascending air that waste gas introduces odd number hole bottom flue of hole bottom flue；Specifically in the friendship being connected with each bottom flue 1
Change and set waste gas arm 7 on shutter 2/ bell and spigot respectively and connected by waste gas supervisor 4A, 4B, waste gas supervisor 4A, 4B
On set for drawing adjustable speed blower fan 5A, the 5B declining waste gas in odd number and even number bottom flue 1, pass through coke oven control system
Control corresponding adjustable speed blower fan 5A/5B start and stop, and link with coke oven heating system commutation actuator, it is achieved coke oven heating
The extraction of system waste gas in corresponding bottom flue 1 while commutating and introducing.
In this utility model, controlled adjustable speed fan 5A, 5B order at annular exhaust steam passage two ends by coke oven control system 8
Opening and closing, realizes linkage with coke oven heating system commutation actuator, it is achieved by the decline in the bottom flue 1 with down current
Waste gas joins in the bottom flue 1 with ascending air after extracting out, and can automatically control the rotating speed of adjustable speed fan 5A, 5B,
Regulation waste gas circulation amount.
As it is shown in figure 1, multiple bottom flues 1 are arranged in order (only 1. 4. represents single even numbers, according to this class in figure to sequence number with sequence number
Push away), when odd number (1,3,5, the ...) bottom flue 1 counted from right side in figure has down current, decline waste gas and enter
Entering tines 3, coke oven control system 8 controls adjustable speed fan 5A operating in right side in figure, simultaneously closes off left side speed-regulating wind in figure
Machine 5B, is declined part to waste gas by adjustable speed fan 5A and sucks odd number (1,3,5 ...) bottom flue 1 from tines 3
Waste gas arm 7 in, decline waste gas and introduce waste gas be responsible in a 4A by arm control valve 9, then through supervisor's control valve 6
Enter waste gas to be responsible in two 4B, after import the rising gas of even number (2,4,6 ...) bottom flue 1 through waste gas arm 7
In stream, thus reach to increase the purpose of waste gas circulation amount.
When coke oven heating system carries out switch operation, even number (2,4,6 ...) bottom flue 1 has down current, burnt
The opening and closing of furnace control system 8 automatic synchronization switching two adjustable speed fans 5A, 5B, makes decline waste gas from even number (2,4,6 ...)
Bottom flue 1 enters in the ascending air of odd number (1,3,5 ...) bottom flue 1 after drawing, same realize increasing waste gas and follow
Circular rector, reduces combustion intensity, thus reduces the purpose of nitrogen oxides in coke oven exhaust gas.
As in figure 2 it is shown, be the structural representation of the waste gas arm described in the utility model tines extraction from exchange shutter.
In this utility model, being preferably but not limited to the tines 3 from exchange shutter 2/ bell and spigot and draw waste gas arm 7, waste gas props up
Pipe 7 also can be drawn from other position.
The above, only this utility model preferably detailed description of the invention, but protection domain of the present utility model does not limit to
In this, any those familiar with the art is in the technical scope that this utility model discloses, according to this utility model
Technical scheme and utility model conceive equivalent or change in addition, all should contain protection domain of the present utility model it
In.
Claims (2)
1. reducing a system for nitrogen oxides in coke oven exhaust gas, including bottom flue and exchange shutter/bell and spigot, exchange is opened
Closing device/bell and spigot to be made up of cylinder and tines, bottom flue is made up of air regenerator bottom flue and gas regenerator bottom flue,
Tines connects air regenerator bottom flue and gas regenerator bottom flue respectively；It is characterized in that, also include from each two forks
Waste gas arm that portion draws respectively and waste gas supervisor one, waste gas supervisor two, described waste gas arm by put in order compartment of terrain with
Waste gas supervisor one or waste gas supervisor two are connected；Waste gas supervisor one connects formation annular exhaust steam passage with the two ends of waste gas supervisor two,
Setting adjustable speed blower fan and supervisor's control valve on waste gas supervisor one and waste gas supervisor two respectively, adjustable speed blower fan connects coke oven control respectively
System processed also realizes linkage with coke oven heating system commutation actuator.
The most according to claim 1 a kind of reduce the system of nitrogen oxides in coke oven exhaust gas, it is characterised in that described
Arm control valve it is respectively equipped with on waste gas arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620475024.7U CN205774282U (en) | 2016-05-23 | 2016-05-23 | A kind of reduce the system of nitrogen oxides in coke oven exhaust gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620475024.7U CN205774282U (en) | 2016-05-23 | 2016-05-23 | A kind of reduce the system of nitrogen oxides in coke oven exhaust gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205774282U true CN205774282U (en) | 2016-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620475024.7U Active CN205774282U (en) | 2016-05-23 | 2016-05-23 | A kind of reduce the system of nitrogen oxides in coke oven exhaust gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205774282U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105885877A (en) * | 2016-05-23 | 2016-08-24 | 中冶焦耐工程技术有限公司 | Method and system for reducing nitric oxide in coke-oven exhaust gas |
-
2016
- 2016-05-23 CN CN201620475024.7U patent/CN205774282U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105885877A (en) * | 2016-05-23 | 2016-08-24 | 中冶焦耐工程技术有限公司 | Method and system for reducing nitric oxide in coke-oven exhaust gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180806 Address after: 116085 128 high energy street, Qixian Ling high tech Industrial Park, Dalian, Liaoning Patentee after: ACRE Coking And Refractory (Dalian) Engineering Consulting Corp., MCC Address before: 116085 128 high energy street, Qixian Ling high tech Industrial Park, Dalian, Liaoning Patentee before: ACRE Coking and Refractory Engineering Consulting Corporation, MCC |
|
| TR01 | Transfer of patent right |