CN215585845U - High-safety hydrogen fluoride waste gas treatment device - Google Patents
High-safety hydrogen fluoride waste gas treatment device Download PDFInfo
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- CN215585845U CN215585845U CN202121863702.4U CN202121863702U CN215585845U CN 215585845 U CN215585845 U CN 215585845U CN 202121863702 U CN202121863702 U CN 202121863702U CN 215585845 U CN215585845 U CN 215585845U
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Abstract
The utility model relates to a high-safety hydrogen fluoride waste gas treatment device which comprises a dust removal tower, a neutralization tank and a raw material barrel, wherein the neutralization tank is arranged at the right side position of the dust removal tower, a raw material barrel fixing frame is arranged at the top center position of the neutralization tank, the bottom end position of the front surface of the dust removal tower is in through connection with an air inlet pipe, and a water suction pipe is arranged on the top surface of the dust removal tower in an inserting mode. The negative pressure pump is operated to pump liquid into the water pumping pipe, atomize and spray the liquid into the dust removal tower through the atomizing nozzle, and spray the waste gas in the dust removal tower, so that harmful impurities and dust in the waste gas are removed, the dust removal effect is good, the functionality is strong, the waste gas treatment effect is effectively improved, the servo motor is operated to drive the stirring paddle to rotate through the output shaft, the neutralization solution is stirred, the dissolution speed of calcium hydroxide powder and the solution can be accelerated, the hydrogen fluoride waste gas and the neutralization solution can be fully mixed and neutralized, the neutralization effect is thorough, the efficiency is high, and the waste gas treatment efficiency is further improved.
Description
Technical Field
The utility model relates to the technical field of hydrogen fluoride waste gas treatment, in particular to a high-safety hydrogen fluoride waste gas treatment device.
Background
At present, a plurality of harmful substances are generated in industrial production, and the harmful substances are generally discharged along with tail gas, which not only seriously endangers the health of people, but also damages the surrounding environment, so that the treatment and purification of the tail gas generated in the industrial production are not only for the self health of people, but also for the purpose of protecting the ecological environment, the treatment and purification of the tail gas are not easy, hydrogen fluoride is one of the harmful substances generated in the industrial production, but also is difficult to treat, because the hydrogen fluoride is a highly toxic substance, serious consequences can be caused by carelessness, the hydrogen fluoride is stable in chemical thermodynamics, and hardly decomposes even at the temperature of 1273K, and the neutralization method is generally adopted in the prior art for removing the hydrogen fluoride.
Present hydrogen fluoride exhaust treatment device only gets rid of through the hydrogen fluoride of neutralization method in to waste gas, and other harmful impurity in the waste gas then can discharge along with the gas after the neutralization together, the functionality is comparatively single, the treatment effect remains further promotion, in addition, present hydrogen fluoride exhaust treatment device neutralizes through the hydrogen fluoride of calcium hydroxide solution in to waste gas, and the calcium hydroxide solution is under for a long time neutralization, calcium hydroxide content in it can reduce gradually, the neutralization effect worsens thereupon, influence the exhaust-gas treatment quality, need artifical continuous to fill in to solution with the calcium hydroxide powder, complex operation, working strength is big, it is automatic low.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a high-safety hydrogen fluoride waste gas treatment device, which solves the problems that the existing hydrogen fluoride waste gas treatment device only removes hydrogen fluoride in waste gas by a neutralization method, other harmful impurities in the waste gas can be discharged along with the neutralized gas, the functionality is single, the treatment effect needs to be further improved, in addition, the existing hydrogen fluoride waste gas treatment device neutralizes the hydrogen fluoride in the waste gas by a calcium hydroxide solution, the calcium hydroxide content of the calcium hydroxide solution can be gradually reduced under the long-term neutralization, the neutralization effect is reduced, the waste gas treatment quality is influenced, calcium hydroxide powder needs to be manually and continuously filled into the solution, the operation is complicated, the working strength is high, and the automation is low.
The above object of the present invention is achieved by the following technical solutions:
a high-safety hydrogen fluoride waste gas treatment device comprises a dust removal tower, a neutralization tank and a raw material cylinder, wherein the neutralization tank is arranged at the right side position of the dust removal tower, a raw material cylinder fixing frame is arranged at the top center position of the neutralization tank, the bottom end position of the front surface of the dust removal tower is in through connection with an air inlet pipe, a water pumping pipe is arranged on the top surface of the dust removal tower in an inserting mode, a negative pressure pump is sleeved on the surface fixing of the water pumping pipe, an atomizing nozzle is in through connection with the bottom end of the water pumping pipe, a drain pipe is arranged at the bottom end fixing of the dust removal tower in an inserting mode, a guide pipe is arranged at the right side position of the top surface of the dust removal tower in an inserting mode, a blanking pipe is in through connection with the center position of the top surface of the neutralization tank, a metering valve is embedded in the surface of the blanking pipe, a PH detector is fixedly arranged on the inner wall of the right side of the neutralization tank, a discharge pipe is arranged at the right side position of the top surface of the neutralization tank in an inserting mode, and a servo motor is fixedly embedded in the center position of the bottom surface of the neutralization tank, an output shaft is movably inserted into the top end of the servo motor, and a stirring paddle is fixedly connected to the surface of the output shaft.
The present invention in a preferred example may be further configured to: the suction pipe is located the top surface central point of gas wash tower and puts, and the one end that the suction pipe kept away from the gas wash tower passes through the pipeline and is connected with outside water source.
The present invention in a preferred example may be further configured to: the bottom end of the dust removing tower is fixedly connected with a drainage hopper in a through way, the drainage hopper is of a bowl-shaped structure, and the drain pipe is connected with the drainage hopper in a through way.
The present invention in a preferred example may be further configured to: the gas wash tower passes through honeycomb duct and neutralization jar through connection, the one end fixed mounting that the honeycomb duct is located the gas wash tower has the air exhauster, and the honeycomb duct is located the one end submergence in neutralization solution in the neutralization jar.
The present invention in a preferred example may be further configured to: the raw material barrel is in through connection with the neutralizing tank through the discharging pipe, calcium hydroxide powder is arranged in the raw material barrel, and the signal output end of the PH detector is in signal connection with the metering valve.
The present invention in a preferred example may be further configured to: the servo motor rotates through output shaft and stirring rake to be connected, and servo motor and neutralization tank are in same axle center, the stirring rake is provided with three or more than three and the equidistance of group and distributes on the output shaft surface.
In summary, the utility model includes at least one of the following beneficial technical effects:
1. in the using process, the negative pressure pump and the atomizing nozzle are arranged, the negative pressure pump operates to pump liquid into the water pumping pipe and atomizes and sprays the liquid into the dust removal tower through the atomizing nozzle to spray the waste gas in the dust removal tower, so that harmful impurities and dust in the waste gas are removed, the dust removal effect is good, the functionality is strong, and the waste gas treatment effect is effectively improved.
2. In the using process of the utility model, the drainage hopper and the blow-off pipe are arranged, harmful impurities and dust separated from waste gas after being sprayed can be guided under the drainage of the drainage hopper and can be discharged out of the dust removal tower together with liquid through the blow-off pipe, so that manual cleaning is avoided, the structure is simple, and the use is convenient and rapid.
3. In the using process of the utility model, the exhaust fan and the flow guide pipe are arranged, the exhaust fan can extract the dedusted hydrogen fluoride waste gas into the flow guide pipe and inject the hydrogen fluoride waste gas into the solution in the neutralization tank through the flow guide pipe for neutralization treatment, and the exhaust fan can accelerate the speed of the waste gas entering the neutralization tank, thereby effectively improving the treatment efficiency of the hydrogen fluoride waste gas.
4. In the using process, the PH detector and the metering valve are arranged, the PH detector can detect the PH value of the neutralization solution in the neutralization tank in real time, when the PH value change of the solution is detected to be not enough to neutralize the hydrogen fluoride in the waste gas, the metering valve is controlled to be opened, the calcium hydroxide powder in the raw material cylinder is automatically added into the solution through the blanking pipe, the calcium hydroxide powder continuously keeps sufficient neutralization capacity, manual operation is not needed, the automation is strong, the waste gas treatment effect is stable and safe, and the method has high practicability.
5. In the using process, the servo motor and the stirring paddle are arranged, the servo motor can drive the stirring paddle to rotate through the output shaft to stir the neutralization solution, so that the dissolving speed of the calcium hydroxide powder and the solution can be accelerated, the hydrogen fluoride waste gas and the neutralization solution can be fully mixed and neutralized, the neutralization effect is thorough, the efficiency is high, and the waste gas treatment efficiency is further improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural diagram of a dust removal tower section according to the present invention;
FIG. 3 is a schematic cross-sectional view of a neutralization tank of the present invention;
FIG. 4 is a schematic sectional view of the cartridge of the present invention.
Reference numerals: 1. a dedusting tower; 101. a drainage hopper; 2. a neutralization tank; 3. a raw material barrel; 4. an air inlet pipe; 5. a water pumping pipe; 6. a negative pressure pump; 7. an atomizing nozzle; 8. a blow-off pipe; 9. a flow guide pipe; 901. an exhaust fan; 10. a discharging pipe; 11. a metering valve; 12. a pH detector; 13. a discharge pipe; 14. a servo motor; 15. an output shaft; 16. and (4) a stirring paddle.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1-4, the present invention provides the following technical solutions: a high-safety hydrogen fluoride waste gas treatment device comprises a dust removal tower 1, a neutralization tank 2 and a raw material barrel 3, wherein the neutralization tank 2 is arranged at the right side position of the dust removal tower 1, the raw material barrel 3 is fixedly erected at the top center position of the neutralization tank 2, the bottom end position of the front surface of the dust removal tower 1 is in through connection with an air inlet pipe 4, a water pumping pipe 5 is arranged on the top surface of the dust removal tower 1 in an inserting mode, a negative pressure pump 6 is sleeved on the surface of the water pumping pipe 5 in a fixed mode, an atomizing nozzle 7 is in through connection with the bottom end of the water pumping pipe 5, a drain pipe 8 is arranged at the bottom end of the dust removal tower 1 in a fixed mode, a flow guide pipe 9 is arranged at the right side position of the top surface of the dust removal tower 1 in an inserting mode, a blanking pipe 10 is in the center position of the top surface of the neutralization tank 2 in an inserting mode, a metering valve 11 is embedded in the surface of the blanking pipe 10, a PH detector 12 is fixedly arranged on the right side inner wall of the neutralization tank 2, and a discharge pipe 13 is arranged at the right side position of the top surface of the neutralization tank 2 in an inserting mode, a servo motor 14 is fixedly embedded in the center of the bottom surface of the neutralization tank 2, an output shaft 15 is movably inserted into the top end of the servo motor 14, and a stirring paddle 16 is fixedly connected to the surface of the output shaft 15.
Specifically, the water pumping pipe 5 is located at the center of the top surface of the dust removal tower 1, and one end, far away from the dust removal tower 1, of the water pumping pipe 5 is connected with an external water source through a pipeline; bottom fixed through connection of gas wash tower 1 has drainage fill 101, drainage fill 101 is "bowl form" structure, blow off pipe 8 is through connection with drainage fill 101, in this embodiment, 6 functions of negative pressure pump can be with in liquid suction pipe 5, and spray to gas wash tower 1 in through 7 atomizing nozzles atomize, spray the waste gas in the gas wash tower 1, and then get rid of harmful impurity and dust in the waste gas, the dust removal effect is good, and is functional strong, effectively promote the exhaust-gas treatment effect, can lead to under the drainage of drainage fill 101 with harmful impurity and dust that waste gas breaks away from after spraying, together discharge gas wash tower 1 through blow off pipe 8 with liquid, avoid manual cleaning, moreover, the steam generator is simple in structure, high durability and convenient use.
Specifically, gas wash tower 1 is through honeycomb duct 9 and neutralization tank 2 through connection, honeycomb duct 9 is located the one end fixed mounting of gas wash tower 1 has air exhauster 901, and honeycomb duct 9 is located the one end submergence in neutralization solution in neutralization tank 2, in this embodiment, air exhauster 901 function can extract the hydrogen fluoride waste gas after removing dust to honeycomb duct 9 in, and carry out neutralization treatment in the solution of honeycomb duct 9 injection neutralization tank 2, air exhauster 901 can accelerate the speed that waste gas got into neutralization tank 2, effectively promote the treatment effeciency of hydrogen fluoride waste gas.
Specifically, the raw material cylinder 3 is communicated with the neutralization tank 2 through a discharging pipe 10, calcium hydroxide powder is arranged in the raw material cylinder 3, and the signal output end of the PH detector 12 is in signal connection with the metering valve 11; the servo motor 14 is rotatably connected with the stirring paddle 16 through the output shaft 15, the servo motor 14 and the neutralizing tank 2 are positioned at the same axis, and the stirring paddle 16 is provided with three or more groups and equidistantly distributed on the surface of the output shaft 15, in the embodiment, the pH detector 12 can detect the pH value of the neutralizing solution in the neutralizing tank 2 in real time, when the pH value change of the solution is detected to be insufficient for neutralizing the hydrogen fluoride in the waste gas, the metering valve 11 is controlled to be opened, so that the calcium hydroxide powder in the raw material cylinder 3 is automatically added into the solution through the discharging pipe 10, the sufficient neutralizing capacity is continuously maintained, manual operation is not needed, the automation is strong, the waste gas treatment effect is stable and safe, and the practicability is high, meanwhile, the servo motor 14 can drive the stirring paddle 16 to rotate through the output shaft 15 to stir the neutralizing solution, so that the dissolving speed of the calcium hydroxide powder and the solution can be accelerated, secondly, can make hydrogen fluoride waste gas and neutralization solution intensive mixing neutralization, the neutralization effect is thorough and efficient, further promotes exhaust-gas treatment efficiency.
The utility model has the following use flow and working principle: when the utility model is used, firstly, the hydrogen fluoride waste gas is discharged into the dust removing tower 1 through the air inlet pipe 4, then, the negative pressure pump 6 is started, the negative pressure pump 6 operates to pump the liquid into the water pumping pipe 5, and the liquid is atomized and sprayed into the dust removing tower 1 through the atomizing nozzle 7, the waste gas in the dust removing tower 1 is sprayed, and then the harmful impurities and the dust in the waste gas are removed, the dust removing effect is good, the functionality is strong, the waste gas treatment effect is effectively improved, the harmful impurities and the dust separated from the waste gas after being sprayed can be discharged out of the dust removing tower 1 through the drain pipe 8 together with the liquid under the drainage of the drainage hopper 101, the manual cleaning is avoided, the structure is simple, the use is convenient and fast, next, the exhaust fan 901 is started, the exhaust fan 901 can operate to pump the hydrogen fluoride waste gas after dust removal into the guide pipe 9, and the hydrogen fluoride waste gas is injected into the solution in the neutralization tank 2 through the guide pipe 9 for neutralization treatment, the exhaust fan 901 can accelerate the speed of the waste gas entering the neutralizing tank 2, the treatment efficiency of the waste gas containing hydrogen fluoride is effectively improved, the pH detector 12 can detect the pH value of the neutralizing solution in the neutralizing tank 2 in real time, when the pH value change of the solution is detected to be not enough to neutralize the hydrogen fluoride in the waste gas, the metering valve 11 is controlled to be opened, the calcium hydroxide powder in the raw material barrel 3 is automatically added into the solution through the discharging pipe 10, the solution is enabled to continuously keep sufficient neutralizing capacity, manual operation is not needed, the automation is strong, the waste gas treatment effect is stable and safe, high practicability is achieved, meanwhile, the servo motor 14 is started, the servo motor 14 can drive the stirring paddle 16 to rotate through the output shaft 15, the neutralizing solution is stirred, the dissolving speed of the calcium hydroxide powder and the solution can be accelerated, the hydrogen fluoride waste gas and the neutralizing solution can be fully mixed and neutralized, the neutralization effect is thorough and efficient, further promotes exhaust-gas treatment efficiency, and finally, the waste gas after the neutralization is finished then breaks away from solution and discharges out neutralization tank 2 from discharge pipe 13.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered by the protection scope of the utility model.
Claims (6)
1. The utility model provides a high security hydrogen fluoride exhaust treatment device, includes gas wash tower (1), neutralization tank (2) and former feed cylinder (3), its characterized in that: the neutralization tank (2) is arranged at the right side position of the dust removal tower (1), the raw material barrel (3) is fixedly arranged at the top center position of the neutralization tank (2), the front surface bottom end position of the dust removal tower (1) is connected with an air inlet pipe (4) in a through mode, the top surface of the dust removal tower (1) is provided with a water pumping pipe (5) in a penetrating mode, the surface of the water pumping pipe (5) is fixedly sleeved with a negative pressure pump (6), the bottom end of the water pumping pipe (5) is connected with an atomizing nozzle (7) in a penetrating mode, the bottom end of the dust removal tower (1) is fixedly provided with a drain pipe (8), the top surface right side position of the dust removal tower (1) is provided with a guide pipe (9) in a penetrating mode, the top surface center position of the neutralization tank (2) is connected with a discharging pipe (10) in a penetrating mode, a metering valve (11) is embedded in the surface of the discharging pipe (10), and a PH detector (12) is fixedly arranged on the right side inner wall of the neutralization tank (2), and the top surface right side position of neutralization jar (2) alternates and is provided with delivery pipe (13), the bottom surface central point of neutralization jar (2) puts fixed the inlaying and has servo motor (14), the top activity interlude of servo motor (14) has output shaft (15), the fixed surface of output shaft (15) is connected with stirring rake (16).
2. The highly safe hydrogen fluoride off-gas treatment device according to claim 1, characterized in that: the water pumping pipe (5) is located at the center of the top surface of the dust removal tower (1), and one end, far away from the dust removal tower (1), of the water pumping pipe (5) is connected with an external water source through a pipeline.
3. The highly safe hydrogen fluoride off-gas treatment device according to claim 2, characterized in that: the bottom fixed through connection of gas wash tower (1) has drainage fill (101), drainage fill (101) are "bowl form" structure, blow off pipe (8) are through connection with drainage fill (101).
4. The highly safe hydrogen fluoride off-gas treatment device according to claim 1, characterized in that: dust excluding tower (1) is through honeycomb duct (9) and neutralization tank (2) through connection, honeycomb duct (9) are located the one end fixed mounting of dust excluding tower (1) and have air exhauster (901), and honeycomb duct (9) are located the one end submergence in neutralization solution in neutralization tank (2).
5. The highly safe hydrogen fluoride off-gas treatment device according to claim 1, characterized in that: the raw material barrel (3) is in through connection with the neutralizing tank (2) through the discharging pipe (10), calcium hydroxide powder is arranged in the raw material barrel (3), and the signal output end of the PH detector (12) is in signal connection with the metering valve (11).
6. The highly safe hydrogen fluoride off-gas treatment device according to claim 5, wherein: servo motor (14) are connected through output shaft (15) and stirring rake (16) rotation, and servo motor (14) and neutralization tank (2) are in same axle center, stirring rake (16) are provided with three or more and the equidistance of group and distribute in output shaft (15) surface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121863702.4U CN215585845U (en) | 2021-08-10 | 2021-08-10 | High-safety hydrogen fluoride waste gas treatment device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121863702.4U CN215585845U (en) | 2021-08-10 | 2021-08-10 | High-safety hydrogen fluoride waste gas treatment device |
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| CN215585845U true CN215585845U (en) | 2022-01-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115155282A (en) * | 2022-07-06 | 2022-10-11 | 孔祥龙 | Flue gas treatment device |
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2021
- 2021-08-10 CN CN202121863702.4U patent/CN215585845U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115155282A (en) * | 2022-07-06 | 2022-10-11 | 孔祥龙 | Flue gas treatment device |
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