CN210645853U - Tail gas treatment device for preparing sodium hypophosphite - Google Patents
Tail gas treatment device for preparing sodium hypophosphite Download PDFInfo
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- CN210645853U CN210645853U CN201921640812.7U CN201921640812U CN210645853U CN 210645853 U CN210645853 U CN 210645853U CN 201921640812 U CN201921640812 U CN 201921640812U CN 210645853 U CN210645853 U CN 210645853U
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Abstract
The utility model relates to a waste gas treatment equipment technical field discloses a tail gas processing apparatus of system sodium hypophosphite, including a jar body, a cloth water section of thick bamboo, annular aqua storage tank, be connected with the inlet tube on the aqua storage tank, jar body bottom is provided with outlet pipe, intake pipe, air duct, top and is provided with the outlet duct, the fan that meets with the outlet duct. The utility model has the advantages of it is following and effect: PH value3Can be combusted in the water distribution cylinder to generate P2O5Particle quilt water distribution cylinderThe water film on the device is absorbed, so that the structure is simple, and the treatment effect is good; treating the solution containing PH by using a water distribution cylinder3Tail gas, on the one hand, can absorb PH3P produced by combustion2O5Particles, on the other hand, the temperature of the tank body can be reduced, and the production safety is ensured; the impeller is arranged in the water distribution cylinder, so that tail gas can spirally rise in the water distribution cylinder, the contact area between the tail gas and a water film in the water distribution cylinder is increased, and the tail gas treatment efficiency is improved.
Description
Technical Field
The utility model relates to a waste gas treatment equipment technical field, in particular to tail gas processing apparatus of system sodium hypophosphite.
Background
Sodium hypophosphite is widely applied to the industries of electronics, medicine, food, petrifaction and the like, and high-purity sodium hypophosphite is used as a chemical plating material and has wide application in the aspects of aviation, machinery, electronics, textile, pump valve manufacturing, surface modification of various metals and nonmetals, improvement of glossiness, wear resistance, corrosion resistance and the like.
The production process of sodium hypophosphite mainly adopts a yellow phosphorus one-step method production process, namely, yellow phosphorus and alkaline earth metal hydroxide, such as NaOH, KOH and the like are adopted for heating reaction, filter residue is removed after reaction, filtrate is concentrated, crystallized, centrifuged and dried to obtain a finished sodium hypophosphite product, and a large amount of pH-containing sodium hypophosphite can be generated in the production process of the sodium hypophosphite3Tail gas, PH3Is a colorless and extremely toxic gas, can spontaneously combust in the air, and if the gas is not treated, the phosphine is inhaled to influence the heart, the respiratory system, the intestines and the stomach of a human body and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a system sodium hypophosphite's tail gas processing apparatus has simple structure, high, the long service life's of equipment effect of tail gas treatment efficiency.
The above technical purpose of the present invention can be achieved by the following technical solutions: including a jar body, setting be in a water distribution section of thick bamboo in the jar body, fix the internal and inner wall of jar with the annular aqua storage tank that a water distribution section of thick bamboo meets, be connected with the inlet tube on the aqua storage tank, jar body bottom is provided with outlet pipe, intake pipe, air duct, the top be provided with the outlet duct, with the fan that the outlet duct meets.
By adopting the technical scheme, the pH value is contained3The tail gas for preparing sodium hypochlorite enters the tank body from the air inlet pipe at the bottom of the tank body, the air enters the tank body from the air pipe, and the PH value3Spontaneous combustion of gas contacting air to form fine P2O5Particles, a water distribution barrel and a water distribution barrel are arranged in the tank bodyAn annular water storage tank is arranged above the water inlet pipe, water flows down along the inner wall of the water distribution cylinder after entering the water storage tank from the water inlet pipe, and P is2O5The particles are absorbed by water on the water distribution cylinder to generate phosphoric acid, and the water distribution cylinder can absorb PH on one hand3P produced by combustion2O5On the other hand, the pH can be lowered3The high temperature that produces during the burning reduces jar body temperature, avoids taking place accidents such as scald.
The utility model discloses a further set up to: the water distribution cylinder is uniformly provided with a plurality of V-shaped water guide plates along the inner wall, and the side edges of the adjacent V-shaped water guide plates are connected with each other.
The utility model discloses a further set up to: the annular water storage tank inner wall is connected with the V-shaped water guide plate, and a plurality of triangular overflow ports are uniformly formed in the top of the annular water storage tank inner wall.
By adopting the technical scheme, the inner wall of the annular water storage tank is provided with the triangular overflow ports, water in the annular water storage tank can uniformly flow to the inner wall of the whole water distribution cylinder from the overflow ports, a layer of water film is formed on the inner wall of the water distribution cylinder, the inner wall of the water distribution cylinder is uniformly provided with the V-shaped water guide plates, the inner area of the water distribution cylinder can be increased, and therefore the P is increased2O5The particle absorption surface is also more uniform in the water distribution cylinder.
The utility model discloses a further set up to: the center of the water distribution cylinder is provided with a rotating shaft, and the rotating shaft is rotatably connected with a plurality of impellers.
The utility model discloses a further set up to: the bottom of the water distribution barrel is uniformly provided with a plurality of gas distribution heads connected with the gas inlet pipe, and the gas spraying direction of the gas distribution heads forms an included angle of 60-75 degrees with the horizontal plane.
The utility model discloses a further set up to: the impeller is made of light aluminum alloy.
By adopting the technical scheme, the impeller is arranged in the water distribution cylinder, the plurality of inclined gas distribution heads are uniformly arranged below the impeller, and after the tail gas is sprayed out of the gas distribution heads, the impeller can be driven to rotate, so that the tail gas spirally rises in the water distribution cylinder, and the PH value is ensured3The combustion is more complete, and the P is improved2O5The absorption rate and the tail gas treatment efficiency are improved.
The utility model discloses a further set up to: the bottom of the tank body is provided with a return pipe and a return pump connected with the return pipe.
By adopting the technical scheme, the water on the inner wall of the water distribution cylinder absorbs P2O5The diluted phosphoric acid formed after the particles falls into the bottom of the water distribution barrel, and the bottom of the water distribution barrel is provided with a return pipe, so that the diluted phosphoric acid can be recycled, and the water consumption is reduced.
The utility model has the advantages that: treating tail gas generated in the process of preparing sodium hypophosphite by adopting a water distribution cylinder to obtain PH3Can be combusted in the water distribution cylinder to generate P2O5The particles are absorbed by the water film on the water distribution cylinder, the structure is simple, and the treatment effect is good; treating the solution containing PH by using a water distribution cylinder3Tail gas, on the one hand, can absorb PH3P produced by combustion2O5Particles, on the other hand, the temperature of the tank body can be reduced, and the production safety is ensured; the impeller is arranged in the water distribution cylinder, so that tail gas can spirally rise in the water distribution cylinder, the contact area between the tail gas and a water film in the water distribution cylinder is increased, and the tail gas treatment efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is an internal structural view of the present embodiment.
Fig. 2 is a sectional view of the present embodiment.
Fig. 3 is an enlarged view of fig. 1 at a.
In the figure, 1, a tank body; 2. a water distributing cylinder; 3. an annular water storage tank; 4. a water inlet pipe; 5. a water outlet pipe; 6. an air inlet pipe; 7. an air outlet pipe; 8. a fan; 9. a return pipe; 10. a reflux pump; 11. an air tube; 21. a V-shaped water guide plate; 31. an overflow port; 32. a rotating shaft; 33. an impeller; 34. an air distribution head.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the specific embodiments. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Example (b): a tail gas treatment device for sodium hypophosphite preparation is shown in figures 1 and 2 and comprises a tank body 1, a water distribution cylinder 2 is arranged in the tank body 1, an annular water storage tank 3 is arranged above the water distribution cylinder 2, the inner wall of the annular water storage tank 3 is connected with the inner wall of the water distribution cylinder 2, a water inlet pipe 4 is connected onto the water storage tank, a water outlet pipe 5, an air inlet pipe 6 and an air pipe 11 are arranged at the bottom of the tank body 1, an air outlet pipe 7 is arranged at the top of the tank body, the air outlet pipe 7 is connected with a fan 8, a return pipe 9 is arranged at the bottom of the tank body 1, a return pump 10 is connected onto the return pipe 9, water enters the water storage tank from the3The tail gas for preparing sodium hypophosphite enters the water distribution cylinder 2 through the air inlet pipe 6, negative pressure is formed in the water distribution cylinder 2 under the action of the fan 8, air enters the water distribution cylinder 2 from the air pipe 11, and PH is measured3Gas contacting air is combusted to form P2O5The particles are absorbed by the water film to generate phosphoric acid, the generated diluted phosphoric acid flows into the bottom of the water distribution cylinder 2 and flows back to the water storage tank through the return pipe 9, and meanwhile, the water film can also absorb PH3The heat generated by the gas combustion reduces the temperature of the tank body 1.
As shown in fig. 1 and 3, the water distribution cylinder 2 is uniformly provided with a plurality of V-shaped water deflectors 21 along the inner wall, the side edges of the adjacent V-shaped water deflectors 21 are connected, the inner wall of the annular water storage tank 3 is connected with the V-shaped water deflectors 21, the top of the inner wall of the annular water storage tank 3 is provided with a plurality of triangular overflow ports 31, and water in the annular water storage tank 3 can be uniformly distributed on the V-shaped water deflectors 21 through the overflow ports 31.
As shown in fig. 1 and 2, a rotating shaft 32 is arranged at the center of the water distribution cylinder 2, two layers of light aluminum alloy impellers 33 are rotatably connected to the rotating shaft 32, three gas distribution heads 34 are uniformly arranged below the impellers 33, an air injection direction of the gas distribution heads 34 forms an included angle of 75 degrees with a horizontal plane, tail gas is injected through the gas distribution heads 34, and the impellers 33 rotate under the action of air flow generated by the gas distribution heads 34 and the fan 8, so that the gas spirally rises in the water distribution cylinder 2, the retention time of the air flow is prolonged, and the tail gas treatment efficiency is improved.
The working principle of the tail gas treatment device for preparing sodium hypophosphite is as follows: first, containing pH3The tail gas for preparing sodium hypophosphite is sprayed into the water distribution cylinder 2 through the gas distribution head 34 to drive the impeller 33 to rotate, the impeller 33 leads the tail gas to spirally rise in the water distribution cylinder 2 to increase the retention time of the tail gas, and meanwhile, PH3Spontaneous combustion of gas into P upon contact with air2O5Microparticles; then the water flows out from the triangular overflow port 31 on the inner wall of the annular water storage tank 3 and is evenly distributed on the V-shaped water guide plate 21 of the water distribution cylinder 2 to form a layer of water film P2O5The particles are absorbed after contacting the water film to generate diluted phosphoric acid which flows into the bottom of the water distribution cylinder 2, and the generated diluted phosphoric acid is pumped to the annular water storage tank 3 along the return pipe 9 by the return pump 10 to be further absorbed P2O5Fine particles of removed PH3The tail gas is pumped out from the top by a fan 8, and the tail gas treatment for preparing the sodium hypophosphite is completed.
Claims (7)
1. The utility model provides a tail gas processing apparatus of system sodium hypophosphite which characterized in that: including a jar body (1), set up cloth water section of thick bamboo (2) in the jar body (1), fix in the jar body (1) and the inner wall with annular aqua storage tank (3) that cloth water section of thick bamboo (2) met, be connected with inlet tube (4) on the aqua storage tank, jar body (1) bottom is provided with outlet pipe (5), intake pipe (6), air hose (11), jar body (1) top be provided with outlet duct (7), with fan (8) that outlet duct (7) met.
2. The tail gas treatment device for sodium hypophosphite preparation according to claim 1, characterized in that: the water distribution cylinder (2) is uniformly provided with a plurality of V-shaped water guide plates (21) along the inner wall, and the side edges of the adjacent V-shaped water guide plates (21) are connected.
3. The tail gas treatment device for sodium hypophosphite preparation according to claim 2, characterized in that: the inner wall of the annular water storage tank (3) is connected with the V-shaped water guide plate (21), and a plurality of triangular overflow ports (31) are uniformly formed in the top of the inner wall of the annular water storage tank (3).
4. The tail gas treatment device for sodium hypophosphite preparation according to claim 1, characterized in that: the center of the water distribution cylinder (2) is provided with a rotating shaft (32), and the rotating shaft (32) is rotatably connected with a plurality of impellers (33).
5. The tail gas treatment device for sodium hypophosphite preparation according to claim 4, characterized in that: the bottom of the water distribution cylinder (2) is uniformly provided with a plurality of air distribution heads (34) connected with the air inlet pipe (6), and the air injection direction of the air distribution heads (34) forms an included angle of 60-75 degrees with the horizontal plane.
6. The tail gas treatment device for sodium hypophosphite preparation according to claim 4, characterized in that: the impeller (33) is made of light aluminum alloy.
7. The tail gas treatment device for sodium hypophosphite preparation according to claim 1, characterized in that: the bottom of the tank body (1) is provided with a return pipe (9) and a return pump (10) connected with the return pipe (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921640812.7U CN210645853U (en) | 2019-09-29 | 2019-09-29 | Tail gas treatment device for preparing sodium hypophosphite |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921640812.7U CN210645853U (en) | 2019-09-29 | 2019-09-29 | Tail gas treatment device for preparing sodium hypophosphite |
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| CN210645853U true CN210645853U (en) | 2020-06-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117018786A (en) * | 2023-06-29 | 2023-11-10 | 苏州绿仕环保科技有限公司 | Industrial waste gas purifying device using novel waste gas adsorbent |
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2019
- 2019-09-29 CN CN201921640812.7U patent/CN210645853U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117018786A (en) * | 2023-06-29 | 2023-11-10 | 苏州绿仕环保科技有限公司 | Industrial waste gas purifying device using novel waste gas adsorbent |
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