CN218653841U

CN218653841U - Harmful tail gas absorption treatment device of waste acid reaction kettle

Info

Publication number: CN218653841U
Application number: CN202223419361.9U
Authority: CN
Inventors: 冯国庆; 彭智武
Original assignee: Hubei Fuxing Environmental Protection Engineering Co ltd
Current assignee: Hubei Fuxing Environmental Protection Engineering Co ltd
Priority date: 2022-12-20
Filing date: 2022-12-20
Publication date: 2023-03-21
Anticipated expiration: 2032-12-20

Abstract

The utility model relates to a useless nitric acid recovery processing technology field specifically is a waste acid reation kettle's harmful tail gas absorbs processing apparatus, including handling the case, air inlet unit is installed at the top of handling the case. This waste acid reation kettle's harmful tail gas absorbs processing apparatus, in leading-in the processing case of harmful tail gas through the tail gas pipe, start air inlet unit simultaneously, water pump and heat exchanger, therefore the water pump can be taken out the alkaline water in the processing case, then spray through the shower nozzle, thereby realize the effect that sprays, and air inlet unit can blow tail gas downwards, make tail gas pass the alkaline water and the heat exchanger that spray, consequently, can realize cooling down and the effect of neutralization tail gas, alkaline water also can filter back cyclic utilization through the clarifier simultaneously, simultaneously the packing layer can be discharging the tail gas of surplus through the blast pipe after filtering, consequently, can realize the effect of accuse temperature, thereby avoid high temperature discharge to cause thermal pollution, and can play energy-conserving effect, improve the purifying effect to tail gas simultaneously.

Description

Harmful tail gas absorption treatment device of waste acid reaction kettle

Technical Field

The utility model relates to a useless nitric acid recovery processing technical field specifically is a waste acid reation kettle's harmful tail gas absorbs processing apparatus.

Background

In the waste nitric acid recovery treatment process, waste sulfuric acid and solid ferrous sulfate are sequentially added into a dissolving barrel, a stirring pump is used for stirring the waste sulfuric acid and the solid ferrous sulfate, low-pressure steam is introduced to enable the temperature to reach 70 ℃, the solid ferrous sulfate is completely dissolved, a mixed solution in the dissolving barrel is pumped into a reaction kettle, the waste nitric acid is added, oxygen is introduced, a valve of the reaction kettle is closed, and raw and auxiliary materials are oxidized, hydrolyzed and polymerized under a closed environment to obtain a dilute solution of polymeric ferric sulfate, so that a large amount of harmful gas can be discharged from the reaction kettle after preparation, and an absorption treatment device is required to be utilized for treating the harmful gas.

At present, among the current useless nitric acid recovery processing technology, reation kettle can discharge harmful acid tail gas to the absorption tower, but current tail gas absorption tower is relatively poor at the in-process of handling tail gas to the purifying effect of tail gas, still contain partial acid material in the combustion gas, cause the pollution easily, all be the mode of spraying that utilizes in handling tail gas, consequently, the water source temperature that sprays is the normal atmospheric temperature, thereby can not cool down temperature and tail gas fast, consequently, can cause thermal pollution after high-temperature liquid and the tail gas discharge.

SUMMERY OF THE UTILITY MODEL

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a waste acid reation kettle's harmful tail gas absorbs processing apparatus, includes and handles the case, air inlet unit is installed at the top of handling the case, and the inboard of handling the case is fixed with the packing layer, and the inboard of handling the case is fixed with the backup pad, installs the heat exchanger between backup pad and the processing case, and spray assembly is installed in the outside of handling the case, and the water inlet has been seted up to one side of handling the case, one side of handling the case is connected with the tail gas pipe, one side of handling the case is connected with the blast pipe.

Further, the spraying assembly comprises a purifying assembly and a water pump which are installed on one side of the processing box respectively, the water pump is communicated with one end of the water purifying assembly, one side of the water pump is connected with a water guide pipe extending to the inside of the processing box, and a plurality of spray heads are installed on the outer side of the water guide pipe.

Further, the purification assembly comprises a cushion block fixed on the right side of the treatment box and a purifier arranged on the cushion block, and the water inlet end and the water outlet end of the purifier are respectively connected with a water pumping pipe and a connecting pipe.

Further, the drinking-water pipe is linked together with the processing case, the connecting pipe is linked together with the water pump, the drinking-water pipe all is connected with the clarifier through the flange with the connecting pipe.

Further, a water level sensor is installed on the right side of the treatment box and located below the packing layer, the water inlet pipe is communicated with an external water pipe, and the tail gas pipe is located above the spraying assembly.

Furthermore, the shower nozzle is located the top of heat exchanger, the aqueduct is located the inside one end of handling the case and is snakelike.

Compared with the prior art, the technical scheme of the application has the following beneficial effects:

this waste acid reation kettle's harmful tail gas absorbs processing apparatus, lead to into the treatment box harmful tail gas through the tail gas pipe, start air inlet unit simultaneously, water pump and heat exchanger, consequently, the water pump can be taken out the alkaline water in the treatment box and separate, then spray through the shower nozzle, thereby realize the effect that sprays, and air inlet unit can blow tail gas downwards, make tail gas pass the alkaline water and the heat exchanger that spray, consequently, can realize cooling and neutralization's effect to tail gas, alkaline water also can pass through clarifier cyclic utilization after filtering simultaneously, simultaneously the packing layer can be discharged the tail gas of surplus through the blast pipe after filtering, consequently, the effect of accuse temperature can be realized, thereby avoid high temperature discharge to cause thermal pollution, and can play energy-conserving effect, improve the purifying effect to tail gas simultaneously.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a right side view of the structure of the present invention;

fig. 3 is a rear sectional view of the structure of the present invention.

In the figure: 1. a treatment tank; 2. an air intake device; 3. a filler layer; 4. a heat exchanger; 5. cushion blocks; 6. a purifier; 7. a water pumping pipe; 8. a connecting pipe; 9. a water pump; 10. a water conduit; 11. a spray head; 12. a water inlet; 13. a tail gas pipe; 14. a water level sensor; 15. a support plate; 16. and (4) exhausting the gas.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the harmful tail gas absorption and treatment device for the waste acid reaction kettle in the embodiment includes a treatment tank 1, an observation window is fixedly connected to the front of the treatment tank 1, the observation window can see a packing layer 3, an air inlet device 2 is fixedly mounted at the top of the treatment tank 1, the air inlet device 2 is formed by combining an air inlet pipe and a fan, the packing layer 3 is fixedly connected to the inner side of the treatment tank 1, two support plates 15 corresponding to each other on the left and right are fixedly connected to the inner side of the treatment tank 1, a heat exchanger 4 is fixedly mounted between the support plates 15 and the treatment tank 1, a water inlet end and a water outlet end of the heat exchanger 4 extend out of the right side of the treatment tank 1, a spray assembly is fixedly mounted on the right side of the treatment tank 1, a water inlet 12 is formed in the bottom of the right side of the treatment tank 1, the water inlet 12 is communicated with an external water pipe, the external water pipe is in a closed state when not used, a tail gas pipe 13 is fixedly connected to the left side of the treatment tank 1, the tail gas pipe 13 is communicated with an exhaust pipe of the reaction kettle, the tail gas pipe 13 is located above the spray assembly, and an exhaust pipe 16 is fixedly connected to the left side of the treatment tank 1.

In this structure, can be with the leading-in case 1 that handles of tail gas that reation kettle discharged through tail gas pipe 13, under air inlet unit 2's effect, can blow tail gas downwards, consequently, tail gas can pass spray set and heat exchanger 4, consequently, spray set can carry out the neutralization with tail gas, cool down at cooperation heat exchanger 4 simultaneously, then filter the back through packing layer 3, exhaust pipe 16 discharges the tail gas of handling well, consequently, can improve tail gas purification's effect and avoid causing thermal pollution, can carry out cyclic utilization to alkaline water simultaneously, thereby play energy-conserving effect.

Wherein, in order to realize the functions of energy conservation, neutralization and temperature reduction. Spray assembly has purification subassembly and water pump 9 including the right side of handling case 1 fixed mounting respectively, water pump 9 is linked together with water purification subassembly's one end, water pump 9 top fixedly connected with extends to the aqueduct 10 of handling 1 inside of case, aqueduct 10 is located the one end of handling 1 inside of case and is snakelike, aqueduct 10 is located the outside fixed mounting who handles 1 inside one end of case and has a plurality of shower nozzle 11, shower nozzle 11 is located heat exchanger 4's top, purify the subassembly including fixing the cushion 5 of handling 1 right side bottom of case, place clarifier 6 at cushion 5 top, the end of intaking and the play water end of clarifier 6 are respectively through flange fixedly connected with drinking-water pipe 7 and connecting pipe 8, the end of intaking of drinking-water pipe 7 is linked together with handling case 1, the play water end of connecting pipe 8 is linked together with water pump 9. Through water pump 9 power generation, consequently cooperation between drinking-water pipe 7 and connecting pipe 8, can filter the alkaline water of handling in the case 1 through clarifier 6, consequently can filter the impurity that alkaline water neutralizes, then spraying alkaline water through aqueduct 10 and shower nozzle 11 through water pump 9, consequently can play and spray tail gas, thereby can play and cool down and the effect of neutralization to tail gas, can play simultaneously and carry out cyclic utilization to alkaline water, thereby reach energy-conserving effect, clarifier 6 also is convenient for demolish the change simultaneously.

In addition, a water level sensor 14 is fixedly installed at the right side of the treatment tank 1, and the water level sensor 14 is positioned below the packing layer 3. The water level sensor 14 is located below the packing layer 3, so that the excessive accumulation of alkaline water in the treatment tank 1 can be effectively prevented from overflowing through the exhaust pipe 16.

The working principle of the above embodiment is as follows:

leading-in into handling case 1 through tail gas pipe 13 with reation kettle exhaust acid tail gas, then start air inlet unit 2 respectively, water pump 9 and heat exchanger 4, heat exchanger 4 can play refrigerated effect, water pump 9 output power, then through drinking-water pipe 7, the alkaline water that connecting pipe 8 will handle in the case 1 filters the back through clarifier 6, spray through aqueduct 10 and shower nozzle 11, the alkaline water of spraying can contact with heat exchanger 4, consequently, the alkaline water can reduce the temperature, air inlet unit 2 can blow the tail gas that gets into downwards simultaneously, tail gas then can be through spraying the district and passing heat exchanger 4, consequently, can play and carry out the neutralization to tail gas, can carry out the cooling treatment to tail gas simultaneously, the tail gas of handling is under air inlet unit 2's the blowing, can filter the back through packing layer 3, discharge through blast pipe 16.

Therefore, the effect of purifying the acidic tail gas can be effectively improved, the thermal pollution caused by overhigh temperature discharge is avoided, and meanwhile, the alkaline water can be recycled after being filtered, so that the energy-saving effect is achieved.

The entire workflow is completed and the details not described in detail in this specification are well within the skill of those in the art.

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, an element defined by the phrases "comprising a component of' 8230; \8230;" does not exclude the presence of additional identical 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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a spent acid reation kettle's harmful tail gas absorbs processing apparatus, includes and handles case (1), its characterized in that: air inlet unit (2) are installed at the top of handling case (1), and the inboard of handling case (1) is fixed with packing layer (3), and the inboard of handling case (1) is fixed with backup pad (15), installs heat exchanger (4) between backup pad (15) and handling case (1), and the spray assembly is installed in the outside of handling case (1), and water inlet (12) have been seted up to one side of handling case (1), one side of handling case (1) is connected with tail gas pipe (13), one side of handling case (1) is connected with blast pipe (16).

2. A harmful exhaust absorption treatment device of a spent acid reation kettle of claim 1, characterized in that: the spray assembly comprises a purification assembly and a water pump (9) which are respectively installed on one side of a treatment box (1), the water pump (9) is communicated with one end of a water purification assembly, one side of the water pump (9) is connected with a water guide pipe (10) which extends to the inside of the treatment box (1), and a plurality of spray heads (11) are installed on the outer side of the water guide pipe (10).

3. A harmful exhaust absorption treatment device of a spent acid reation kettle of claim 2, characterized in that: the purification assembly comprises a cushion block (5) fixed on the right side of the treatment box (1) and a purifier (6) placed on the cushion block (5), wherein the water inlet end and the water outlet end of the purifier (6) are respectively connected with a water pumping pipe (7) and a connecting pipe (8).

4. A harmful exhaust absorption treatment device of a spent acid reation kettle of claim 3, characterized in that: the suction pipe (7) is communicated with the treatment box (1), the connecting pipe (8) is communicated with the water pump (9), and the suction pipe (7) and the connecting pipe (8) are connected with the purifier (6) through flanges.

5. A harmful exhaust absorption treatment device of a spent acid reation kettle of claim 1, characterized in that: a water level sensor (14) is installed on the right side of the treatment box (1), the water level sensor (14) is located below the packing layer (3), the water inlet (12) is communicated with an external water pipe, and the tail gas pipe (13) is located above the spraying assembly.

6. A harmful exhaust absorption treatment device of a spent acid reation kettle of claim 2, characterized in that: the spray head (11) is positioned above the heat exchanger (4), and one end of the water guide pipe (10) positioned in the treatment box (1) is in a snake shape.