CN210171224U - Sintering flue gas desulfurization denitration catalytic unit - Google Patents
Sintering flue gas desulfurization denitration catalytic unit Download PDFInfo
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- CN210171224U CN210171224U CN201920975647.4U CN201920975647U CN210171224U CN 210171224 U CN210171224 U CN 210171224U CN 201920975647 U CN201920975647 U CN 201920975647U CN 210171224 U CN210171224 U CN 210171224U
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- flue gas
- denitration
- reducing agent
- denitration tower
- tower
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
The utility model discloses a sintering flue gas desulfurization and denitrification catalytic device, which comprises a denitrification tower and a flue gas inlet pipeline, wherein the flue gas inlet pipeline is arranged at the bottom of the side wall of the denitrification tower; the flue gas outlet pipeline is arranged at the top of the side wall of the denitration tower; the smoke detector is arranged on the smoke inlet pipeline; the reducing agent particle bin is connected to the top wall of the denitration tower, and the reducing agent particle bin is communicated with the denitration tower; the material stirring mechanism is arranged on the reducing agent particle bin; the water tank is connected to the top wall of the denitration tower, and the water tank is communicated with the denitration tower through a connecting pipeline; the electromagnetic valve is connected to the connecting pipeline; the rotary spray nozzle is connected to the inside of the denitration tower; the beneficial effects of the utility model reside in that can dispose the reductant solution of corresponding concentration according to NOx's content in the sintering flue gas to make sintering flue gas denitration more thorough, also can avoid causing the extravagant condition of reductant simultaneously, thereby ensure good denitration effect.
Description
Technical Field
The utility model relates to a sintering flue gas desulfurization denitration catalytic unit belongs to sintering flue gas desulfurization denitration art field.
Background
With the development of the steel industry, the demand of high-performance rich ore is greatly increased, and the sintered ore prepared by the sintering technology has good performance in steel smeltingThe method is widely applied in the smelting process, the yield of the sintered ore in China reaches 50% of the total world yield by 2007, however, the preparation process of the sintered ore needs to burn a large amount of coal and coke powder, and a large amount of NOx and SO are generated2And dust and other atmospheric pollutants, and 40-60% of SO of iron and steel enterprises2Because 48% of NOx generated by steel enterprises is generated in the sintering process, the sintering flue gas needs to be subjected to purification treatment such as desulfurization and denitrification to reduce the environmental pollution of the steel industry.
The denitration technology of prior art when handling sintering flue gas, mainly adopt to use the aqueous ammonia to carry out the denitration to sintering flue gas as the reductant, present desulfurization technique, the aqueous ammonia of certain dosage has been disposed in advance mostly, then carry out the denitration to sintering flue gas, present denitration technique does not dispose the reductant of corresponding concentration according to the content of NOx in the sintering flue gas, consequently can cause the denitration thoroughly or cause the extravagant condition of reductant to can not ensure good denitration effect.
Disclosure of Invention
In order to solve the problem, the utility model provides a sintering flue gas desulfurization denitration catalytic unit configures the reductant solution of corresponding concentration according to NOx's content in the sintering flue gas to make sintering flue gas denitration more thorough, also can avoid causing the extravagant condition of reductant simultaneously, thereby ensure good denitration effect.
The utility model discloses a sintering flue gas desulfurization denitration catalytic unit, including the denitration tower, still include
The flue gas inlet pipeline is arranged at the bottom of the side wall of the denitration tower;
the flue gas outlet pipeline is arranged at the top of the side wall of the denitration tower;
the smoke detector is arranged on the smoke inlet pipeline;
the reducing agent particle bin is connected to the top wall of the denitration tower, and the reducing agent particle bin is communicated with the denitration tower;
the material stirring mechanism is arranged on the reducing agent particle bin and comprises a first motor, the output end of the first motor is connected with a first connecting shaft, and one end, far away from the first motor, of the first connecting shaft penetrates through the reducing agent particle bin and is connected with a material stirring plate;
the water tank is connected to the top wall of the denitration tower, and the water tank is communicated with the denitration tower through a connecting pipeline;
the electromagnetic valve is connected to the connecting pipeline;
the rotary spraying nozzle is connected inside the denitration tower.
Further, a reducing agent dissolving cavity is arranged inside the denitration tower, and the rotary spray nozzle is connected to the bottom wall of the reducing agent dissolving cavity.
Further, be connected with the second motor on the denitration tower roof, the second motor output is connected with the second connecting axle, the one end that the second motor was kept away from to the second connecting axle passes the denitration tower and outwards extends.
Further, the outer wall of the second connecting shaft is connected with a stirring blade and a fan blade respectively, the stirring blade is arranged in the reducing agent dissolving cavity, and the fan blade is arranged between the outer wall of the bottom of the reducing agent dissolving cavity and the bottom wall of the denitration tower.
Further, the bottom of the denitration tower is provided with a denitration byproduct outlet.
Compared with the prior art, the utility model introduces the sintering flue gas into the flue gas inlet pipeline through the draught fan, and the flue gas detector arranged on the flue gas inlet pipeline is used for obtaining the content of NOx in the sintering flue gas, then the first motor is controlled to operate through the controller, so as to drive the first connecting shaft to rotate, further the shifting plate is driven to convey the reducing agent particles in the reducing agent particle bin into the reducing agent dissolving cavity, the rotation and the stop of the first motor are controlled through the controller, thereby controlling the dosage of the reducing agent particles entering the reducing agent dissolving cavity, meanwhile, the electromagnetic valve is controlled to be opened and closed through the controller, thereby controlling the dosage of water entering the reducing agent dissolving cavity, thereby effectively configuring the reducing agent with corresponding concentration according to the content of NOx in the sintering flue gas, further leading the sintering flue gas to be denitrified more thoroughly, and simultaneously avoiding the condition of reducing agent waste, the second motor is started to drive the second connecting shaft connected to the output end of the second motor to rotate, so that the stirring blade connected to the outer wall of the second connecting shaft is driven to rotate, reducing agent particles and water entering the reducing agent dissolving cavity are stirred to be rapidly and well mixed, the denitration effect of the denitration tower is better, when sintering flue gas enters the denitration tower, the water pump is arranged inside the reducing agent dissolving cavity and is started, so that the water pump can drive reducing agent solution to be sprayed out through the rotary spray nozzle and be contacted with the sintering flue gas, the denitration effect is formed, the rotary spray nozzle is adopted, so that the diffusion range of the reducing agent solution is wider, the denitration effect of the sintering flue gas is better, and the sintering flue gas in the denitration tower has good fluidity through the arrangement of the fan blades, so that the sintering flue gas is further combined with the reducing solution, thereby make sintering flue gas denitration effect better, through the denitration accessory substance export that the denitration bottom set up to be convenient for discharge the produced solid-liquid after the sintering flue gas denitration, then through regeneration reduction, be applied to the denitration of sintering flue gas again, and then reduce the denitration cost.
Drawings
Fig. 1 is a first schematic structural diagram of the present invention;
fig. 2 is a first schematic structural diagram of the present invention;
FIG. 3 is a schematic sectional view of the present invention;
FIG. 4 is a schematic front sectional view of the present invention;
fig. 5 is a schematic view of a sectional structure of a reducing agent particle bin of the present invention.
The parts in the drawings are marked as follows: 1-a denitration tower; 101-a flue gas inlet duct; 102-a flue gas outlet duct; 103-a smoke detector; 104-denitration by-product outlet; 2-a reductant particulate bin; 201-a first motor; 202-first connecting shaft; 203-a kick-out plate; 3-a water tank; 301-solenoid valves; 4-a rotary spray head; 5-a reducing agent dissolution cavity; 6-a second motor; 601-a second connecting shaft; 602-stirring blade; 603-fan blades.
Detailed Description
As shown in fig. 1 to 5, the utility model discloses a sintering flue gas desulfurization and denitration catalytic device, which comprises a denitration tower 1 and a denitration tower
The flue gas inlet pipeline 101 is arranged at the bottom of the side wall of the denitration tower 1;
the flue gas outlet pipeline 102 is arranged at the top of the side wall of the denitration tower 1;
the smoke detector 103 is arranged on the smoke inlet pipeline 101;
the reducing agent particle bin 2 is connected to the top wall of the denitration tower 1, and the reducing agent particle bin 2 is communicated with the denitration tower 1;
the material stirring mechanism is arranged on the reducing agent particle bin 2 and comprises a first motor 201, the output end of the first motor 201 is connected with a first connecting shaft 202, and one end, far away from the first motor 201, of the first connecting shaft 202 penetrates through the reducing agent particle bin 2 and is connected with a stirring plate 203;
the water tank 3 is connected to the top wall of the denitration tower 1, and the water tank 3 is communicated with the denitration tower 1 through a connecting pipeline;
the electromagnetic valve 301 is connected to the connecting pipeline;
and the rotary spray nozzle 4 is connected inside the denitration tower 1.
Be connected with second motor 6 on the denitration tower 1 roof, the output of second motor 6 is connected with second connecting axle 601, and denitration tower 1 is passed and outwards extends to the one end that second motor 6 was kept away from to second connecting axle 601.
The outer wall of the second connecting shaft 601 is connected with a stirring blade 602 and a fan blade 603 respectively, the stirring blade 602 is arranged in the reducing agent dissolving chamber 5, and the fan blade 603 is arranged between the outer wall of the bottom of the reducing agent dissolving chamber 5 and the bottom wall of the denitration tower 1.
Denitration accessory substance export 104 is provided with in denitration tower 1 bottom.
The working principle is as follows: sintering flue gas is introduced into the flue gas inlet pipeline 101 through the induced draft fan, the content of NOx in the sintering flue gas is obtained through the flue gas detector 103 arranged on the flue gas inlet pipeline 101, then the first motor 201 is controlled to operate through the controller, so that the first connecting shaft 202 is driven to rotate, the material stirring plate 203 is driven to convey reducing agent particles in the reducing agent particle bin 2 to the inside of the reducing agent dissolving cavity 5, the rotation and stop of the first motor 201 are controlled through the controller, so that the dosage of the reducing agent particles entering the reducing agent dissolving cavity 5 is controlled, meanwhile, the electromagnetic valve 301 is controlled to be opened and closed through the controller, so that the dosage of water entering the reducing agent dissolving cavity 5 is controlled, the reducing agent with corresponding concentration is effectively configured according to the content of NOx in the sintering flue gas, further, the sintering flue gas is subjected to more thorough denitration, and meanwhile, the condition that the reducing agent is wasted is avoided, by starting the second motor 6, the second connecting shaft 601 connected to the output end is driven to rotate, so as to drive the stirring blade 602 connected to the outer wall of the second connecting shaft 601 to rotate, thereby stirring the reducing agent particles and water entering the reducing agent dissolving chamber 5 to rapidly and well mix the reducing agent particles and the water, thereby having a better denitration effect, when the sintering flue gas enters the denitration tower 1, a water pump is arranged inside the reducing agent dissolving chamber 5, then the water pump is started, so that the water pump can drive the reducing agent solution to be sprayed out through the rotary spray nozzle 4 and contact with the sintering flue gas, thereby forming the denitration effect, by adopting the rotary spray nozzle 4, the diffusion range of the reducing agent solution is wider, thereby the denitration effect of the sintering flue gas is better, and by setting the fan blades 603, the sintering flue gas inside the denitration tower 1 has good fluidity, thereby further make sintering flue gas and reducing solution combine mutually to make sintering flue gas denitration effect better, through denitration accessory substance export 104 that denitration tower 1 bottom set up, thereby be convenient for discharge the produced solid-liquid of sintering flue gas denitration back, then through regeneration reduction, reapply in the denitration of sintering flue gas, and then reduce the denitration cost.
The above-mentioned embodiment is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles of the present invention are included in the claims of the present invention.
Claims (5)
1. The utility model provides a sintering flue gas desulfurization denitration catalytic unit, includes denitration tower (1), its characterized in that: also comprises
The flue gas inlet pipeline (101) is arranged at the bottom of the side wall of the denitration tower (1);
the flue gas outlet pipeline (102) is arranged at the top of the side wall of the denitration tower (1);
the smoke detector (103) is arranged on the smoke inlet pipeline (101);
the reducing agent particle bin (2) is connected to the top wall of the denitration tower (1), and the reducing agent particle bin (2) is communicated with the denitration tower (1);
the material stirring mechanism is arranged on the reducing agent particle bin (2) and comprises a first motor (201), the output end of the first motor (201) is connected with a first connecting shaft (202), and one end, far away from the first motor (201), of the first connecting shaft (202) penetrates through the reducing agent particle bin (2) and is connected with a stirring plate (203);
the water tank (3) is connected to the top wall of the denitration tower (1), and the water tank (3) is communicated with the denitration tower (1) through a connecting pipeline;
an electromagnetic valve (301) connected to the connection pipe;
and the rotary spray nozzle (4) is connected inside the denitration tower (1).
2. The desulfurization and denitrification catalytic device for sintering flue gas as claimed in claim 1, wherein: the denitration tower (1) is internally provided with a reducing agent dissolving cavity (5), and the rotary spray nozzle (4) is connected to the bottom wall of the reducing agent dissolving cavity (5).
3. The desulfurization and denitrification catalytic device for sintering flue gas as claimed in claim 2, wherein: be connected with second motor (6) on denitration tower (1) roof, second motor (6) output is connected with second connecting axle (601), denitration tower (1) is passed and outwards extends to the one end that second motor (6) were kept away from in second connecting axle (601).
4. The desulfurization and denitrification catalytic device for sintering flue gas as claimed in claim 3, wherein: the outer wall of the second connecting shaft (601) is connected with a stirring blade (602) and a fan blade (603) respectively, the stirring blade (602) is arranged in the reducing agent dissolving cavity (5), and the fan blade (603) is arranged between the outer wall of the bottom of the reducing agent dissolving cavity (5) and the bottom wall of the denitration tower (1).
5. The desulfurization and denitrification catalytic device for sintering flue gas as claimed in claim 1, wherein: and a denitration byproduct outlet (104) is arranged at the bottom of the denitration tower (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920975647.4U CN210171224U (en) | 2019-06-27 | 2019-06-27 | Sintering flue gas desulfurization denitration catalytic unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920975647.4U CN210171224U (en) | 2019-06-27 | 2019-06-27 | Sintering flue gas desulfurization denitration catalytic unit |
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| Publication Number | Publication Date |
|---|---|
| CN210171224U true CN210171224U (en) | 2020-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920975647.4U Expired - Fee Related CN210171224U (en) | 2019-06-27 | 2019-06-27 | Sintering flue gas desulfurization denitration catalytic unit |
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| CN (1) | CN210171224U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113030245A (en) * | 2020-12-12 | 2021-06-25 | 陕西泰诺特检测技术有限公司 | Ground mark module for detecting inside of pipeline |
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2019
- 2019-06-27 CN CN201920975647.4U patent/CN210171224U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113030245A (en) * | 2020-12-12 | 2021-06-25 | 陕西泰诺特检测技术有限公司 | Ground mark module for detecting inside of pipeline |
| CN113030245B (en) * | 2020-12-12 | 2024-02-06 | 陕西泰诺特检测技术有限公司 | Detection ground marking module in pipeline |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200324 Termination date: 20210627 |