CN216136866U - Automatic control device for low-nitrogen combustion of carbon black waste gas - Google Patents
Automatic control device for low-nitrogen combustion of carbon black waste gas Download PDFInfo
- Publication number
- CN216136866U CN216136866U CN202121818892.8U CN202121818892U CN216136866U CN 216136866 U CN216136866 U CN 216136866U CN 202121818892 U CN202121818892 U CN 202121818892U CN 216136866 U CN216136866 U CN 216136866U
- Authority
- CN
- China
- Prior art keywords
- fan
- waste
- arteries
- veins
- useless
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Chimneys And Flues (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model discloses an automatic control device for low-nitrogen combustion of carbon black waste gas, which comprises: the tail gas furnace is connected with the drying machine, the tail gas furnace is connected with external carbon black tail gas, one side of the drying machine is provided with a carbon black discharge hole, the tail gas furnace is connected with a first processing structure, and the tail gas furnace is connected with a second processing structure; the utility model relates to the technical field of carbon black waste gas combustion treatment, which improves the automation degree and reduces the labor intensity of operators. The automatic control is relatively stable, and the phenomenon that the pulse-taking and pulse-taking chimney accidentally emits gas can be solved. The temperature of the hearth of the tail gas furnace and the cascade of the waste pulse secondary circulating fan can ensure the stability of the nitrogen oxide, and the nitrogen oxide is prevented from exceeding the standard. After the fan is stopped, an interlocking protection system is arranged, and the safety performance is improved.
Description
Technical Field
The utility model relates to the technical field of carbon black waste gas combustion treatment, in particular to an automatic control device for low-nitrogen combustion of carbon black waste gas.
Background
The low-nitrogen combustion system of the carbon black production line comprises a carbon black tail gas furnace, a waste vein flue gas fan, a main vein flue gas fan and a waste vein secondary circulation fan, wherein the tail gas furnace is used for providing heat of a carbon black dryer to dry carbon black particles, the dried carbon black particles enter a conveying system from a carbon black discharge port of the dryer, generated waste gas is conveyed to a waste vein bag filter by the waste gas fan, the waste vein bag filter separates powdery carbon black from waste gas by cloth bag filtration, most of the separated waste gas is conveyed to a desulfurizing tower by the waste vein flue gas fan, and a small part of the separated waste gas is conveyed to the tail gas furnace by the waste vein secondary circulation fan and is used for reducing the content of nitrogen oxides. The flue gas (carbon black tail gas) separated by the main vein bag filter is simultaneously sent to a tail gas furnace for combustion by the main vein flue gas fan.
The problems existing in the prior art are as follows: 1. the main pulse flue gas fan and the waste pulse flue gas fan need to manually adjust the frequency conversion of the fans according to the pipeline pressure of the main pulse flue gas fan and the waste pulse flue gas fan, so that the chimney is ensured not to have leakage phenomenon, inconvenient operation and incapable of timely processing problems. 2. When the secondary circulating fan is used for adjusting the nitrogen oxide, the frequency conversion of the fan needs to be manually adjusted, the operation is inconvenient, and the adjustment and control of the nitrogen oxide are not easy to be accurate. 3. When tail gas is increased or reduced, the temperature change of a hearth of the tail gas furnace is large, the frequency conversion of the secondary circulating fan needs to be adjusted according to the temperature of the tail gas furnace, and the stability of the content of nitrogen oxides is ensured. 4. When the fan is stopped in emergency, the chimney blow-off valve cannot be opened at the first time, and the valve cannot be closed in time to cause positive pressure or gas reverse series of the bag filter, so that manual adjustment is needed, and the safety operability is poor.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides an automatic control device for low-nitrogen combustion of carbon black waste gas, which solves the problems that the existing pulse-taking smoke fan and the pulse-taking smoke fan need to manually adjust the frequency conversion of the fans according to the pressure of a pulse-taking chimney and a pulse-taking chimney, so that the chimney is ensured not to have leakage, the operation is inconvenient, and the problems cannot be timely treated.
In order to achieve the purpose, the utility model is realized by the following technical scheme: an automatic control device for low-nitrogen combustion of carbon black waste gas, comprising: the tail gas furnace is connected with the drying machine, the tail gas furnace is connected with external carbon black tail gas, one side of the drying machine is provided with a carbon black discharge hole, the tail gas furnace is connected with a first processing structure, and the tail gas furnace is connected with a second processing structure;
the first processing structure comprises: the waste gas fan, the waste vein bag filter, the waste vein secondary circulation fan and the waste vein flue gas fan;
the waste gas fan with the desiccator is connected, useless arteries and veins bag filter with the waste gas fan is connected, useless arteries and veins secondary circulation fan with useless arteries and veins gas fan parallel connection useless arteries and veins bag filter, useless arteries and veins secondary circulation fan connects the tail gas stove, useless arteries and veins gas fan connects outside desulfurizing tower.
Preferably, the second processing structure comprises: a main vein flue gas fan and a main vein bag filter;
the main vein flue gas fan is connected with the tail gas furnace, and the main vein bag filter is connected with the main vein flue gas fan.
Preferably, be connected with useless arteries and veins secondary circulation fan intake valve on the useless arteries and veins flue gas fan, be connected with useless arteries and veins flue gas fan outlet valve on the useless arteries and veins flue gas fan, be equipped with useless arteries and veins chimney blow-off valve on the useless arteries and veins bag filter, useless arteries and veins bag filter with useless arteries and veins secondary circulation fan and be equipped with useless arteries and veins chimney pipeline pressure transmitter between the useless arteries and veins flue gas fan.
Preferably, the main vein flue gas fan is connected with a main vein flue gas fan inlet valve, the main vein bag filter is provided with a main vein chimney blow-off valve, and a main vein chimney pipeline pressure transmitter is arranged between the main vein flue gas fan and the main vein bag filter.
Preferably, a temperature detector is arranged on the tail gas furnace.
Preferably, the tail gas furnace is also connected with a tail gas furnace air supply fan.
Advantageous effects
The utility model provides an automatic control device for low-nitrogen combustion of carbon black waste gas. The method has the following beneficial effects:
1. the automation degree is improved, and the labor intensity of operators is reduced.
2. The automatic control is relatively stable, and the phenomenon that the waste pulse chimney emits gas occasionally can be solved.
3. The temperature of the hearth of the tail gas furnace and the cascade of the waste pulse secondary circulating fan can ensure the stability of the content of the nitrogen oxide, and the nitrogen oxide is prevented from exceeding the standard.
4. After the fan is stopped, an interlocking protection system is arranged, and the safety performance is improved.
Drawings
FIG. 1 is a flow chart of an automatic control device for low-nitrogen combustion of carbon black exhaust gas according to the present invention.
In the figure: 1. a tail gas furnace; 2. a dryer; 3. a carbon black discharge port; 4. a waste gas fan; 5. a waste bag filter; 6. a waste pulse secondary circulation fan; 7. a waste pulse flue gas fan; 8. a pulse-taking flue gas fan; 9. a main vein bag filter; 10. an inlet valve of the waste pulse secondary circulation fan; 11. an exhaust pulse flue gas fan outlet valve; 12. a waste chimney blow-off valve; 13. a waste pulse chimney pipeline pressure transmitter; 14. an inlet valve of a main pulse flue gas fan; 15. a main pulse chimney blow-off valve; 16. a main pulse chimney pipeline pressure transmitter; 17. a temperature detector; 18. and a tail gas furnace air supply fan.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b): the following working principles, detailed connecting means thereof, and the following main descriptions of the working principles and processes are well known in the art, and will be referred to by those skilled in the art for the specific connection and operation sequence of the components in this application.
Referring to fig. 1, the present invention provides a technical solution: an automatic control device for low-nitrogen combustion of carbon black waste gas, comprising: the device comprises a tail gas furnace 1 and a dryer 2, wherein the tail gas furnace 1 is connected with the dryer 2, the tail gas furnace 1 is connected with an external carbon black tail gas conveying pipeline, a carbon black discharge hole 3 is formed in one side of the dryer 2, the tail gas furnace 1 is connected with a first processing structure, and the tail gas furnace 1 is connected with a second processing structure;
the first processing structure comprises: a waste gas fan 4, a waste vein bag filter 5, a waste vein secondary circulating fan 6 and a waste vein flue gas fan 7;
the waste gas fan 4 is connected with the dryer 2, the waste vein bag filter 5 is connected with the waste gas fan 4, the waste vein secondary circulation fan 6 and the waste vein flue gas fan 7 are connected with the waste vein bag filter 5 in parallel, the waste vein secondary circulation fan 6 is connected with the tail gas furnace 1, the waste vein flue gas fan 7 is connected with an external desulfurizing tower, the waste vein secondary circulation fan 6 and the temperature detector 17 are cascaded, the temperature of a hearth of the tail gas furnace 1 is set, the waste vein secondary circulation fan 6 is automatically adjusted according to the change of the temperature of the tail gas furnace 1, and automatic control is achieved.
In the implementation process, further, the second processing structure includes: a main vein flue gas fan 8 and a main vein bag filter 9;
the main vein flue gas fan 8 is connected with the tail gas furnace 1, and the main vein bag filter 9 is connected with the main vein flue gas fan 8.
In the specific implementation process, the waste vein secondary circulation fan 6 is further connected with a waste vein secondary circulation fan inlet valve 10, the waste vein flue gas fan 7 is connected with a waste vein flue gas fan outlet valve 11, the waste vein flue gas fan 7, the waste vein chimney blow-off valve 12 and the waste vein flue gas fan outlet valve 11 are protected in an interlocking mode, when the waste vein flue gas fan 7 is stopped, the waste vein chimney blow-off valve 12 is automatically opened, meanwhile, the waste vein flue gas fan outlet valve 11 is closed, and gas back-crossing of a waste gas main pipe is prevented. The waste pulse secondary circulating fan 6 and the waste pulse secondary circulating fan inlet valve 10 are protected in an interlocking mode, and when the waste pulse secondary circulating fan 6 is stopped, the waste pulse secondary circulating fan inlet valve 10 is closed. A waste vein chimney blow-off valve 12 is arranged on the waste vein bag filter 5, a waste vein chimney pipeline pressure transmitter 13 is arranged between the waste vein bag filter 5, the waste vein secondary circulating fan 6 and the waste vein flue gas fan 7, the waste vein flue gas fan 7 and the waste vein chimney pipeline pressure transmitter 13 are in cascade connection, the pressure of the waste vein chimney is set, and the waste vein chimney pressure transmitter is thrown into the automatic waste vein flue gas fan 7 to be automatically adjusted according to the waste vein chimney pressure.
In the specific implementation process, a main vein flue gas fan inlet valve 14 is connected on the main vein flue gas fan 8, a main vein chimney blow-off valve 15 is arranged on the main vein bag filter 9, the main vein chimney blow-off valve 15, the main vein flue gas fan inlet valve 14 and the main vein flue gas fan 8 are protected in an interlocking mode, when the main vein flue gas fan 8 is stopped, the main vein chimney blow-off valve 15 is automatically opened, the main vein flue gas fan inlet valve 14 is closed, a main vein flue gas cylinder pressure gauge 16 is arranged between the main vein flue gas fan 8 and the main vein bag filter 9, the main vein flue gas fan 8 and a main vein flue gas cylinder pipeline pressure transmitter 16 are in cascade connection, the main vein flue gas cylinder pressure is set on a central control room DCS interface and is automatically sent to realize the automatic adjustment of the main vein flue gas fan 8,
in the specific implementation process, a temperature detector 17 is further arranged on the tail gas furnace 1.
In the specific implementation process, the tail gas furnace 1 is further connected with a tail gas furnace air supply fan 18.
The working principle is as follows: the main pulse flue gas fan 8 and the main pulse chimney pipeline pressure transmitter 16 are cascaded, a main pulse chimney pressure gauge 16 to-0.1 KPA is set on a DCS interface of a central control room, and the main pulse flue gas fan 8 is automatically controlled to adjust the frequency conversion of the fan along with the change of the pressure, and the pressure can be set or changed at any time according to the field condition. When the main pulse flue gas fan 8 is in failure and suddenly stops, the interlocking switch is triggered, the interlocking reaction is that the inlet valve 14 of the main pulse flue gas fan is closed, and the main pulse chimney blow-off valve 15 is opened at the same time. In normal operation of the waste pulse flue gas fan 7, the waste pulse chimney blow-off valve 12 is in a closed state, the waste pulse flue gas fan outlet valve 11 is in an open state, the waste pulse flue gas fan 7 and the waste pulse chimney pipeline pressure transmitter 13 are put into automatic control, and the waste pulse flue gas fan 7 automatically adjusts fan frequency conversion according to the change of the waste pulse chimney pipeline pressure transmitter 13. When the waste pulse flue gas fan 7 is in fault and is halted, the waste pulse chimney blow-off valve 12 is automatically opened and the waste pulse flue gas fan outlet valve 11 is simultaneously closed, so that gas back-streaming caused by untimely operation is prevented, the safety performance is improved, the waste pulse secondary circulating fan 6 and the temperature detector 17 are automatically controlled, the temperature of the tail gas furnace 1 is set, the waste pulse secondary circulating fan 6 is subjected to frequency variation increase and decrease according to the variation of the temperature detector 17, the automatic control effect is achieved, when the fan is in fault and is halted, the waste pulse secondary circulating fan inlet valve 10 is automatically closed, back-streaming with the gas in the tail gas furnace 1 is prevented, and the automation degree is improved and the safety performance is improved compared with the prior operation.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. An automatic control device for low-nitrogen combustion of carbon black waste gas, comprising: the carbon black drying device comprises a tail gas furnace (1) and a dryer (2), and is characterized in that the tail gas furnace (1) is connected with the dryer (2), the tail gas furnace (1) is connected with external carbon black tail gas, a carbon black discharge hole (3) is formed in one side of the dryer (2), the tail gas furnace (1) is connected with a first processing structure, and the tail gas furnace (1) is connected with a second processing structure;
the first processing structure comprises: a waste gas fan (4), a waste vein bag filter (5), a waste vein secondary circulating fan (6) and a waste vein flue gas fan (7);
waste gas fan (4) with desiccator (2) are connected, useless arteries and veins bag filter (5) with waste gas fan (4) are connected, useless arteries and veins secondary circulation fan (6) with useless arteries and veins flue gas fan (7) parallel connection useless arteries and veins bag filter (5), useless arteries and veins secondary circulation fan (6) are connected tail gas stove (1), outside desulfurizing tower is connected in useless arteries and veins flue gas fan (7).
2. The automatic control device for low-nitrogen combustion of carbon black exhaust gas according to claim 1, characterized in that: the second processing structure comprises: a main vein flue gas fan (8) and a main vein bag filter (9);
the main vein flue gas fan (8) is connected with the tail gas furnace (1), and the main vein bag filter (9) is connected with the main vein flue gas fan (8).
3. The automatic control device for low-nitrogen combustion of carbon black exhaust gas according to claim 1, characterized in that: be connected with useless arteries and veins secondary circulating fan import valve (10) on useless arteries and veins secondary circulating fan (6), be connected with useless arteries and veins flue gas fan outlet valve (11) on useless arteries and veins flue gas fan (7), be equipped with useless arteries and veins chimney blow-off valve (12) on useless arteries and veins bag filter (5), useless arteries and veins bag filter (5) with useless arteries and veins secondary circulating fan (6) and be equipped with useless arteries and veins chimney pipeline pressure transmitter (13) between useless arteries and veins flue gas fan (7).
4. The automatic control device for low-nitrogen combustion of carbon black exhaust gas according to claim 2, characterized in that: the main vein smoke blower is characterized in that a main vein smoke blower inlet valve (14) is connected to the main vein smoke blower (8), a main vein chimney blow-off valve (15) is arranged on the main vein bag filter (9), and a main vein chimney pipeline pressure transmitter (16) is arranged between the main vein smoke blower (8) and the main vein bag filter (9).
5. The automatic control device for low-nitrogen combustion of carbon black exhaust gas according to claim 1, characterized in that: and a temperature detector (17) is arranged on the tail gas furnace (1).
6. The automatic control device for low-nitrogen combustion of carbon black exhaust gas according to claim 1, characterized in that: the tail gas furnace (1) is also connected with a tail gas furnace air supply fan (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121818892.8U CN216136866U (en) | 2021-08-05 | 2021-08-05 | Automatic control device for low-nitrogen combustion of carbon black waste gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121818892.8U CN216136866U (en) | 2021-08-05 | 2021-08-05 | Automatic control device for low-nitrogen combustion of carbon black waste gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216136866U true CN216136866U (en) | 2022-03-29 |
Family
ID=80804277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121818892.8U Active CN216136866U (en) | 2021-08-05 | 2021-08-05 | Automatic control device for low-nitrogen combustion of carbon black waste gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216136866U (en) |
-
2021
- 2021-08-05 CN CN202121818892.8U patent/CN216136866U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202570507U (en) | Paint baking room with electrical protection function | |
| CN207006122U (en) | Low nitrogen gas burner | |
| CN106839039A (en) | The compound VMC of kitchen range environmental protection | |
| CN206469276U (en) | A kind of heat accumulating type catalytic burning device | |
| CN216136866U (en) | Automatic control device for low-nitrogen combustion of carbon black waste gas | |
| CN109200818A (en) | A kind of explosion-proof catalytic oxidizing equipment | |
| CN209978641U (en) | Tunnel cave waste heat recovery distribution output device | |
| CN111189057A (en) | Temperature interlocking protection system and control method of heat accumulating type oxidation incineration device | |
| CN109624134B (en) | Styrene butadiene rubber drying device and method for reducing waste gas emission | |
| CN208398098U (en) | Smoke catalytic recycling device | |
| CN216716797U (en) | Drying room for directly heating Cantonese sausage by utilizing clean flue gas of hot blast stove | |
| CN106224996A (en) | A kind of instability eliminating cement kiln burning waste is harmful to the system of chlorine | |
| CN109737435A (en) | Thermal accumulating incinerator overtemperature treatment process and device | |
| CN108518698A (en) | Smoke catalytic recycling device | |
| CN207316939U (en) | Organic exhaust gas aoxidizes the urgent cooling system of incinerator | |
| CN204933249U (en) | VOCS emission-control equipment | |
| CN211091845U (en) | Natural gas direct combustion formula heating tobacco flue-curing house | |
| CN208687747U (en) | A kind of three Room RTO devices administered for industrial organic exhaust gas | |
| CN206724665U (en) | A kind of device drying oven of energy-saving household electrical appliances two | |
| CN102865747B (en) | Smoke afterheat utilization system and smoke afterheat utilization method for electrical porcelain kiln group | |
| CN111457733A (en) | Energy-saving environment-friendly combustion heating system of building component fire-resistant experimental furnace | |
| CN215983864U (en) | Energy-saving coke tank wet coke drying system | |
| CN114857945B (en) | High-temperature-resistant industrial boiler treatment process | |
| CN206549438U (en) | Organic waste gas treatment system under exhaust gas concentration fluctuation operating mode | |
| CN109945215A (en) | A kind of catalytic combustion system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |