CN214973039U - A processing apparatus for handling nitric acid waste gas - Google Patents
A processing apparatus for handling nitric acid waste gas Download PDFInfo
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- CN214973039U CN214973039U CN202120667412.6U CN202120667412U CN214973039U CN 214973039 U CN214973039 U CN 214973039U CN 202120667412 U CN202120667412 U CN 202120667412U CN 214973039 U CN214973039 U CN 214973039U
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Abstract
The utility model relates to a processing apparatus for handling nitric acid waste gas, it includes reaction vessel, installs on the reaction vessel lateral wall and one end penetrates reaction vessel to the breather pipe of bottom, installs the breather pipe and stretch into reaction vessel bottom one end and the ventiduct that is linked together with the breather pipe and the outlet duct that is linked together with reaction vessel is inside, a plurality of ventiduct have been seted up with reaction vessel bottom looks adaptation and top to the ventiduct. This application has the characteristics that can reduce waste gas and remove from the breather pipe wall outside when handling the waste gas that contains nitric acid to reach the effect that improves the exhaust-gas treatment quality.
Description
Technical Field
The application relates to the technical field of waste gas treatment equipment, in particular to a treatment device for treating nitric acid waste gas.
Background
Nitric acid is strong acid with a boiling point of 78 ℃ and is easy to dissolve in water, concentrated nitric acid is widely applied to multiple fields of chemical industry, metallurgy, medicine, dye, pesticide and the like, waste gas containing nitric acid is often generated when the nitric acid is used, and the waste gas enters the atmosphere and is harmful to the environment, so that the nitric acid is one of main causes of acid rain.
Therefore, the waste gas containing nitric acid needs to be treated by a plurality of procedures to reach the emission standard before being discharged into the atmosphere, the waste gas containing nitric acid is generally treated by introducing the waste gas into a reaction liquid for neutralization, and the reaction liquid reacts with nitric acid, so that the content of nitric acid can be reduced, and then the next treatment procedure is carried out.
In view of the above-mentioned related technologies, the inventor believes that when waste gas is introduced into the reaction liquid, gas easily moves along the outer wall of the vent pipe, so that the waste gas and the reaction liquid cannot be in full contact, and the waste gas treatment effect is poor, which needs to be further improved.
SUMMERY OF THE UTILITY MODEL
In order to let the waste gas that contains nitric acid let in inside the container and reduce waste gas and remove from the breather pipe outer wall to improve the exhaust-gas treatment effect, this application provides a processing apparatus for handling nitric acid waste gas.
The application provides a processing apparatus for handling nitric acid waste gas adopts following technical scheme:
the utility model provides a processing apparatus for handling nitric acid waste gas, includes reaction vessel, installs on the reaction vessel lateral wall and one end penetrates reaction vessel to the breather pipe of bottom, install the breather pipe stretch into reaction vessel bottom one end and with the ventiduct be linked together the play gas cylinder and with the inside outlet duct that is linked together of reaction vessel, a plurality of ventiduct have been seted up with reaction vessel bottom looks adaptation and top to the play gas cylinder.
Through adopting above-mentioned technical scheme, installation breather pipe, play gas cylinder, outlet duct and offer out the gas pocket, can let in the gas cylinder from the breather pipe with the waste gas that contains nitric acid to from a plurality of ventholes discharge to with the inside reaction liquid full contact of reaction vessel, less gas depends on the condition on the breather pipe outer wall, in order to improve exhaust-gas treatment efficiency and quality.
Optionally, the bottom of the reaction vessel is provided with a circulating pipe in a communicating manner, one end of the circulating pipe, which is far away from the bottom of the reaction vessel, is provided with a water pump for pumping the reaction liquid at the bottom of the reaction vessel to the top of the reaction vessel in a communicating manner, and the top of the reaction vessel is provided with a sprinkler head communicated with the circulating pipe.
By adopting the technical scheme, the circulating pipe, the water pump and the sprinkler head are installed, the water pump can pump the reaction liquid at the bottom to the top of the reaction vessel and spray the reaction liquid in the cavity of the reaction vessel by the sprinkler head, so that the cavity in the reaction vessel is filled with the reaction liquid, the sprayed reaction liquid can better react with the nitric acid in the waste gas, the nitric acid component in the waste gas is reduced, in addition, the volatilization of the nitric acid dissolved in the reaction liquid can be reduced, the content of the waste gas discharged from the gas outlet pipe is improved, and the treatment quality and the treatment efficiency of the nitric acid waste gas are improved.
Optionally, the spraying surface of the spraying head is arranged to be a hemispherical cambered surface.
By adopting the technical scheme, the spraying surface of the spraying head is set to be the hemispherical cambered surface, so that the reaction liquid can be sprayed more uniformly and comprehensively, the reaction of the nitric acid and the reaction liquid is promoted, and the removal efficiency of the nitric acid is improved.
Optionally, the radius of the air outlet close to the air vent pipe is smaller than the radius of the air outlet far away from the air vent pipe.
Through adopting above-mentioned technical scheme, the venthole radius that will be close to the breather pipe sets up to be less than the radius of keeping away from the venthole of breather pipe, can equalize the waste gas discharge amount of every venthole to make waste gas more evenly fully contact the reaction with reaction liquid.
Optionally, a concentration sensor for detecting the concentration of the nitric acid gas is installed at one end of the gas outlet pipe.
Through adopting above-mentioned technical scheme, installation concentration sensor can detect out the nitric acid content of trachea exhaust waste gas to can embody the ability that neutralization liquid absorbed nitric acid, so that the concentration of adjustment neutralization liquid or change neutralization liquid, thereby get rid of the nitric acid in the waste gas better.
Optionally, the circulating pipe is provided with a feed pipe for injecting the reaction liquid near the top of the reaction vessel.
By adopting the technical scheme, the feeding pipe is communicated and arranged at the top of the circulating pipe, and the reaction liquid can be injected into the feeding pipe through the spraying head, so that the integral structure of the treatment device is simplified, and the production cost is reduced.
Optionally, the feed pipe is provided with a one-way valve for blocking gas from flowing out of the feed pipe.
By adopting the technical scheme, the one-way valve is arranged at the top of the reaction vessel, so that the reaction liquid absorbing the nitric acid can be reduced from flowing back to the vessel storing the reaction liquid, and the condition that the reaction liquid in storage is polluted can be reduced.
Optionally, the one-way valve includes a material conveying pipe communicated with one end of the feeding pipe far away from the circulating pipe, a valve core is slidably mounted at one end of the material conveying pipe close to the feeding pipe, and a coil spring is mounted between the valve core and the material conveying pipe.
By adopting the technical scheme, the valve core, the spiral spring and the material conveying pipe are installed, the reaction liquid in the material conveying pipe can be injected into the material conveying pipe under the action of overcoming the spring, and the liquid in the material conveying pipe can not flow back into the material conveying pipe due to the blockage of the valve core, so that the structure is simple, the production is convenient, and the cost is low.
In summary, the present application includes at least one of the following beneficial technical effects:
1. by installing the vent pipe and the vent cylinder and arranging the vent holes, the waste gas can be introduced into the vent cylinder and then discharged from the vent holes distributed on the top of the vent cylinder, so that the waste gas is fully contacted with the reaction liquid, and the efficiency of the reaction of the waste gas and the reaction liquid is improved to improve the treatment efficiency of nitric acid in the waste gas;
2. a feeding circulating system can be established by installing a circulating pipe, a water pump, a spraying head, a feeding pipe, a valve core, a spiral spring and the feeding pipe, reaction liquid enters the feeding pipe from the feeding pipe, the water pump pumps the reaction liquid at the bottom of the reaction container into the feeding pipe and sprays the reaction liquid into the reaction container from the spraying head, the reaction liquid is injected into the reaction container by the spraying head, and meanwhile, a cavity in the reaction container can be filled with atomized reaction liquid to promote the reaction of waste gas and the reaction liquid.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.
Fig. 2 is a schematic structural diagram of an air outlet cylinder in the embodiment of the application.
Fig. 3 is a schematic sectional structure view of a check valve in an embodiment of the present application.
Description of reference numerals: 1. a reaction vessel; 2. a breather pipe; 20. an air outlet cylinder; 21. an air outlet; 3. an air outlet pipe; 4. A circulation pipe; 40. a water pump; 41. a sprinkler head; 410. a hemispherical cambered surface; 5. a concentration sensor; 6. a feed pipe; 7. a valve core; 70. a coil spring; 71. a delivery pipe.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses a processing apparatus for handling nitric acid waste gas.
Referring to fig. 1, a processing apparatus for handling nitric acid waste gas includes reaction vessel 1, and in this embodiment, reaction vessel 1's top intercommunication is vertical installs breather pipe 2 and outlet duct 3, and breather pipe 2 is linked together one end with reaction vessel 1 is inside to be stretched into reaction vessel 1's bottom, and reaction vessel 1 is inside to be equipped with reaction liquid, and reaction liquid can remove nitric acid with the nitric acid composition reaction in the waste gas, and waste gas injects the reaction liquid into from breather pipe 2, and after waste gas and reaction liquid contact reaction, from outlet duct 3 discharge.
In order to facilitate the detection of the content of nitric acid in the waste gas discharged from the gas outlet pipe 3, in the embodiment, the gas outlet pipe 3 is provided with the concentration sensor 5, and the concentration sensor 5 can detect the concentration of nitric acid in the gas contacted with the concentration sensor 5, so that data can be displayed through a display electrically connected with the concentration sensor 5, and a basis for adjusting the proportion of the reaction liquid can be provided for workers.
When waste gas was discharged from 2 bottoms of breather pipe, waste gas was along 2 lateral wall discharge reaction liquid of breather pipe easily, thereby make waste gas can not with the abundant even contact of reaction liquid, thereby make reaction efficiency lower, take place for reducing this condition, refer to fig. 2, in this embodiment, establish on reaction vessel 1's inside wall with 2 subsides of breather pipe, install gas outlet cylinder 20 in the bottom intercommunication of breather pipe 2, gas outlet cylinder 20's bottom and reaction vessel 1's bottom looks adaptation and laminating.
A plurality of ventholes 21 have been seted up at the top of venthole 20, and the radius that is close to the venthole 21 of breather pipe 2 will be less than the radius of keeping away from breather pipe 2, and waste gas lets in inside venthole 20 from breather pipe 2 to discharge from venthole 21 to the reaction liquid, make waste gas more even fully react with the neutralization solution, thereby make exhaust waste gas nitric acid content lower, then can improve the quality of waste gas, in order to reduce the influence to the environment.
Referring to fig. 3, in order to promote the reaction of the reaction solution and the exhaust gas, in the present embodiment, a circulation pipe 4 is installed on the sidewall of the reaction vessel 1 in a communicating manner, one end of the circulation pipe 4 is installed on the sidewall of the reaction vessel 1 near the bottom in a communicating manner, the other end of the circulation pipe 4 is installed on the center of the top of the reaction vessel 1 in a communicating manner, one end of the circulation pipe 4 penetrating into the top of the reaction vessel 1 is installed in a communicating manner with a sprinkler 41, and a water pump 40 is installed on the circulation pipe 4.
In this embodiment, the spraying surface of the spraying head 41 is set to be the hemispherical arc surface 410, and the water pump 40 can pump the reaction liquid at the bottom of the reaction vessel 1 to the spraying head 41 and then spray the reaction liquid from the spraying head 41 to the reaction vessel 1, so that the reaction liquid can react with the exhaust gas more sufficiently.
In order to simplify the overall structure of the processing apparatus, in the present embodiment, a feeding pipe 6 is communicatively installed on the top of the circulation pipe 4 near the reaction vessel 1, a feeding pipe 71 is communicatively installed on one end of the feeding pipe 6 far from the circulation pipe 4 through a one-way valve, one end of the feeding pipe 71 far from the one-way valve is communicated with a vessel storing the reaction solution, and the one-way valve can block the liquid from the feeding pipe 6 to the feeding pipe 71, so as to prevent the reaction solution reacted with the exhaust gas from flowing back to the feeding pipe 71, thereby reducing the pollution of the reaction solution.
The reaction liquid is injected into the feed pipe 71 and can enter the feed pipe 6 through the one-way valve, and then enter the circulating pipe 4, and finally is sprayed into the reaction vessel 1 from the spray head 41.
In this embodiment, the check valve includes a feeding pipe 71, the feeding pipe 71 extends in a direction perpendicular to the direction of extension of the feeding pipe 6, a valve element 7 is slidably mounted at one end of the feeding pipe 71 close to the feeding pipe 6 along the direction of extension of the feeding pipe 71, the valve element 7 is connected to the feeding pipe 71 through a coil spring 70, one end of the coil spring 70 is mounted at one side of the valve element 7 close to the end of the feeding pipe 71, and the other end is mounted at the bottom end of the feeding pipe 71 close to the end of the feeding pipe 6.
The side wall of the valve core 7 blocks one end of the feeding pipe 6 close to the feeding pipe 71, one end of the valve core 7 far away from the spiral spring 70 blocks one end of the feeding pipe 71 close to the feeding pipe 6, the reaction liquid is injected into the feeding pipe 6 from the feeding pipe 71 by overcoming the elasticity of the spiral spring 70, and the liquid in the feeding pipe 6 is difficult to flow back to the feeding pipe 71, so that the pollution of the reaction liquid can be reduced.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (6)
1. A processing apparatus for handling nitric acid waste gas which characterized in that: the reaction device comprises a reaction container (1), a vent pipe (2) which is arranged on the side wall of the reaction container (1) and one end of which penetrates into the reaction container (1) to the bottom, an air outlet cylinder (20) which is arranged at one end of the bottom of the vent pipe (2) and extends into the reaction container (1) and is communicated with the vent pipe (2), and an air outlet pipe (3) which is communicated with the inside of the reaction container (1), wherein the air outlet cylinder (20) is matched with the bottom of the reaction container (1) and the top of which is provided with a plurality of air outlet holes (21);
the bottom of the reaction vessel (1) is provided with a circulating pipe (4) in a communicating manner, one end, far away from the bottom of the reaction vessel (1), of the circulating pipe (4) is provided with a water pump (40) which is used for pumping reaction liquid at the bottom of the reaction vessel (1) to the top of the reaction vessel (1) in a communicating manner, and the top in the reaction vessel (1) is provided with a spraying head (41) communicated with the circulating pipe (4);
the spraying surface of the spraying head (41) is arranged into a hemispherical cambered surface (410).
2. A treatment plant for treating nitric acid off-gas according to claim 1, wherein: the radius of the air outlet hole (21) close to the vent pipe (2) is smaller than that of the air outlet hole (21) far away from the vent pipe (2).
3. A treatment plant for treating nitric acid off-gas according to claim 1, wherein: and one end of the air outlet pipe (3) is provided with a concentration sensor (5) for detecting the concentration of the nitric acid gas.
4. A treatment plant for treating nitric acid off-gas according to claim 1, wherein: and a feeding pipe (6) for injecting reaction liquid is communicated and installed at the top of the circulating pipe (4) close to the reaction vessel (1).
5. A treatment plant for treating nitric acid off-gas according to claim 4, wherein: the feed pipe (6) is provided with a one-way valve for blocking gas from flowing out of the feed pipe (6).
6. A treatment plant for treating nitric acid off-gas according to claim 5, wherein: the check valve comprises a material conveying pipe (71) communicated with one end, far away from the circulating pipe (4), of the material conveying pipe (6), a valve core (7) is installed on one end, close to the material conveying pipe (6), of the material conveying pipe (71) in a sliding mode, and a spiral spring (70) is installed between the valve core (7) and the material conveying pipe (71).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120667412.6U CN214973039U (en) | 2021-04-01 | 2021-04-01 | A processing apparatus for handling nitric acid waste gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120667412.6U CN214973039U (en) | 2021-04-01 | 2021-04-01 | A processing apparatus for handling nitric acid waste gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214973039U true CN214973039U (en) | 2021-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120667412.6U Active CN214973039U (en) | 2021-04-01 | 2021-04-01 | A processing apparatus for handling nitric acid waste gas |
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| Country | Link |
|---|---|
| CN (1) | CN214973039U (en) |
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2021
- 2021-04-01 CN CN202120667412.6U patent/CN214973039U/en active Active
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Denomination of utility model: A treatment device for treating nitric acid waste gas Effective date of registration: 20220701 Granted publication date: 20211203 Pledgee: Bank of China Limited Jiangmen Kaiping sub branch Pledgor: GUANGDONG LIANFA AUXILIARY AGENT FACTORY Co.,Ltd. Registration number: Y2022980009637 |