CN211725314U

CN211725314U - Chloroacetic acid tail gas centralized treatment equipment

Info

Publication number: CN211725314U
Application number: CN201922164342.8U
Authority: CN
Inventors: 徐少舢; 陈明瑞; 徐咸尧; 孙百利
Original assignee: Xinxian Huaxiang Salinization Co ltd
Current assignee: Xinxian Huaxiang Salinization Co ltd
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-10-23
Anticipated expiration: 2029-12-06

Abstract

The utility model discloses a chloroacetic acid tail gas centralized processing equipment, including double-deck washing box, one-level backwash pump, venturi sprayer, equal trachea, fan, second return pump, spray box and interlayer board, double-deck washing box one side-mounting is fixed with spray the box, the inside intermediate separation of double-deck washing box is equipped with the interlayer board, the interlayer board will upper washing tank and lower floor's washing tank are cut apart into to double-deck washing box, lower floor's washing tank switch-on is connected with the one-level backwash pump, the delivery port department of one-level backwash pump installs first three-way valve, first three-way valve is connected with the second three-way valve through first return liquid pipe, a valve port of second three-way valve is connected to through the nozzle stub the feed inlet of venturi sprayer. Has the advantages that: the utility model discloses do simply, through cubic washing and spray unified absorption to the waste chlorine after the washing, reduced chloroacetic acid device exhaust-gas treatment's manual work.

Description

Chloroacetic acid tail gas centralized treatment equipment

Technical Field

The utility model relates to a chemical production device field especially relates to chloroacetic acid tail gas centralized processing equipment.

Background

Chloroacetic acid is also called monochloroacetic acid, the packaging adopts a double-layer plastic bag with a polypropylene woven bag lining for packaging, and the packaging is required to prevent direct sunlight, (rain, and the like) from being affected with damp and damaged in the transportation process, is used for preparing pesticides and used as an organic synthetic intermediate, is used as an acidifier of a starch adhesive, is also used as an intermediate of a dye, a medicine, a pesticide, a synthetic resin and other organic synthetic materials, and is used for producing an indigo dye in the dye industry; chloroacetic acid is also an important carboxymethylating agent, is used for preparing sodium carboxymethylcellulose, ethylene diamine tetraacetic acid and the like, is also used as a nonferrous metal flotation agent, a chromatography reagent and the like, and although the chloroacetic acid has wide application, chloroacetic acid tail gas is generated in the production process, so that the pollution is great.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a chloroacetic acid tail gas centralized processing equipment for solving the above problems.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

chloroacetic acid tail gas centralized processing equipment comprises a double-layer washing box body, a primary reflux pump, a Venturi ejector, a gas equalizing pipe, a fan, a second reflux pump, a spraying box body and a interlayer plate, wherein the spraying box body is fixedly arranged on one side of the double-layer washing box body, the interlayer plate is arranged in the double-layer washing box body at an interval, the double-layer washing box body is divided into an upper washing box and a lower washing box by the interlayer plate, the lower washing box is connected with the primary reflux pump in a communicated manner, a first three-way valve is arranged at a water outlet of the primary reflux pump and is connected with a second three-way valve through a first liquid return pipe, a valve port of the second three-way valve is connected to a feed inlet of the Venturi ejector through a short pipe, a discharge port of the Venturi ejector is connected to the lower washing box through the primary washing pipe, and the upper washing box and the lower washing box are connected through a gas return pipe to realize gas, the air guide return pipe stretches into the bottom of upper washing box and installation intercommunication have equal trachea, install at the top of upper washing box the fan, the fan switches on through the blast pipe spray inside the box, the end of blast pipe stretches into spray the bottom of box, it is fixed with to spray box one side second return pump, the inlet of second return pump is connected the switch on to spray the inside of box, install second return pipe on the liquid outlet of second return pump.

Furthermore, the second returns the liquid pipe and pegs graft and get into spray the box, the second returns the liquid pipe and inserts spray the body part of box and install the shower head and be used for realizing spraying.

Furthermore, a liquid leakage hole is formed in the interlayer plate, and a liquid leakage valve is installed at the bottom of the liquid leakage hole and used for controlling the washing liquid in the upper washing box to flow into the lower washing box.

Furthermore, the other valve port of the second three-way valve is connected with a liquid inlet pipe for adding new washing liquid, the other valve port of the first three-way valve is connected with a liquid discharge pipe for discharging the washing liquid in the lower washing tank, and the air inlet end of the venturi ejector is connected with an external air pump for increasing the air inlet pressure through an air inlet pipe.

Further, a plurality of ventholes have been seted up on the pipe wall of equal trachea, the inlet has been seted up at the top of upper washing case, the inlet is connected through the feed liquor valve and is installed the feed liquor funnel and be used for upper washing case adds the washing liquid.

In the structure, through the feed liquor pipe with the feed liquor funnel adds the washing liquid for upper washing case and lower floor's washing case respectively, emits into chloroacetic acid tail gas through the intake pipe, and tail gas gets into through the air guide return pipe after getting into lower floor's washing case upper washing case passes through the fan after carrying out the secondary washing and introduces the box that sprays, and it has weak alkaline liquid to spray the box inside, discharges after carrying out further processing. The lower floor scrubbing case is because carrying out the washing once, and it has a large amount of acid gas to be dissolved to compare in the secondary washing, therefore lower floor's acidity is higher, discharges lower floor's scrubbing case washing liquid after a certain time, and the upper strata washing liquid is relatively more to the lower floor, and the reutilization, new washing liquid continues to be added to the upper strata.

Has the advantages that: the utility model discloses do simply, through cubic washing and spray unified absorption to the waste chlorine after the washing, reduced chloroacetic acid device exhaust-gas treatment's manual work.

Drawings

FIG. 1 is a schematic view of the overall structure of the chloroacetic acid tail gas centralized treatment device of the present invention.

The reference numerals are explained below:

1. a double-layer washing box body; 2. a first-stage washing pipe; 3. a first-stage reflux pump; 4. a first three-way valve; 5. a liquid discharge pipe; 6. an air inlet pipe; 7. a venturi ejector; 8. a second three-way valve; 9. a liquid inlet pipe; 10. a first liquid return pipe; 11. an air guide return pipe; 12. a liquid inlet valve; 13. a gas homogenizing pipe; 14. a fan; 15. an exhaust pipe; 16. an air outlet chimney; 17. a shower head; 18. a second liquid return pipe; 19. a second liquid return pump; 20. spraying the box body; 21. a interlayer plate; 22. a liquid leakage valve.

Detailed Description

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be further explained with reference to the accompanying drawings:

the utility model provides a concentrated treatment device for chloroacetic acid tail gas, which consists of a double-layer washing box body 1, a primary reflux pump 3, a Venturi ejector 7, a gas equalizing pipe 13, a fan 14, a secondary reflux pump 19, a spraying box body 20 and a interlayer plate 21;

referring to fig. 1, a spraying tank 20 is fixedly installed at one side of a double-layer washing tank 1, a division plate 21 is arranged at an interval in the double-layer washing tank 1, the division plate 21 divides the double-layer washing tank 1 into an upper washing tank and a lower washing tank, the lower washing tank is communicated and connected with a primary reflux pump 3, a first three-way valve 4 is installed at a water outlet of the primary reflux pump 3, the first three-way valve 4 is connected with a second three-way valve 8 through a first liquid return pipe 10, one valve port of the second three-way valve 8 is connected to a feed inlet of a Venturi ejector 7 through a short pipe, a discharge port of the Venturi ejector 7 is communicated to the lower washing tank through a primary washing pipe 2, the upper washing tank and the lower washing tank are communicated and connected through a gas guide return pipe 11 to realize gas transmission, and the gas guide return pipe 11 extends into the bottom of the upper washing tank and is provided and communicated with a gas homogenizing pipe 13;

fan 14 is installed at the top of upper washing case, and inside fan 14 switched on spraying box 20 through blast pipe 15, the end of blast pipe 15 stretched into the bottom that sprays box 20, and spraying box 20 one side is fixed with second liquid return pump 19, and the inside of spraying box 20 is switched on in the connection of second liquid return pump 19's inlet, installs second liquid return pipe 18 on second liquid return pump 19's the liquid outlet.

Preferably, the second liquid return pipe 18 is inserted into the spraying box body 20, and the spraying head 17 is installed on the pipe body part of the second liquid return pipe 18 inserted into the spraying box body 20 for spraying.

Preferably, the interlayer plate 21 is provided with a liquid leakage hole, and a liquid leakage valve 22 is installed at the bottom of the liquid leakage hole and used for controlling the washing liquid in the upper washing tank to flow into the lower washing tank.

Preferably, the other valve port of the second three-way valve 8 is connected to a liquid inlet pipe 9 for adding new washing liquid, the other valve port of the first three-way valve 4 is connected to a liquid outlet pipe 5 for discharging the washing liquid in the lower washing tank, and the air inlet end of the venturi ejector 7 is connected to an external air pump for increasing the air inlet pressure through an air inlet pipe 6.

Preferably, a plurality of air outlets are formed in the pipe wall of the air equalizing pipe 3, a liquid inlet is formed in the top of the upper washing tank, and a liquid inlet funnel is connected and installed to the liquid inlet through a liquid inlet valve 12 and used for adding washing liquid to the upper washing tank.

In the structure, through feed liquor pipe 9 with the feed liquor funnel adds the washing liquid for upper washing case and lower floor's washing case respectively, arranges into chloroacetic acid tail gas through intake pipe 6, and tail gas gets into through air guide return pipe 11 after getting into lower floor's washing case upper washing case carries out after the secondary washing through fan 14 introduction spray box 20, spray box inside have weak alkaline liquid, carry out further processing back and discharge. The lower floor scrubbing case is because carrying out the washing once, and it has a large amount of acid gas to be dissolved to compare in the secondary washing, therefore lower floor's acidity is higher, discharges lower floor's scrubbing case washing liquid after a certain time, and the upper strata washing liquid is relatively more to the lower floor, and the reutilization, new washing liquid continues to be added to the upper strata.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a chloroacetic acid tail gas centralized processing equipment which characterized in that: the device comprises a double-layer washing box body, a primary reflux pump, a Venturi ejector, a gas homogenizing pipe, a fan, a second reflux pump, a spraying box body and a division plate, wherein the spraying box body is fixedly arranged on one side of the double-layer washing box body, the division plate is arranged in the middle of the inside of the double-layer washing box body at intervals and divides the double-layer washing box body into an upper washing box and a lower washing box, the lower washing box is connected with the primary reflux pump in a communicating way, a first three-way valve is arranged at a water outlet of the primary reflux pump and is connected with a second three-way valve through a first liquid return pipe, a valve port of the second three-way valve is connected to a feed inlet of the Venturi ejector through a short pipe, a discharge port of the Venturi ejector is connected to the lower washing box through the primary washing pipe, and the upper washing box and the lower washing box are connected through a gas guide return pipe to, the air guide return pipe stretches into the bottom of upper washing box and installation intercommunication have equal trachea, install at the top of upper washing box the fan, the fan switches on through the blast pipe spray inside the box, the end of blast pipe stretches into spray the bottom of box, it is fixed with to spray box one side second return pump, the inlet of second return pump is connected the switch on to spray the inside of box, install second return pipe on the liquid outlet of second return pump.

2. The chloroacetic acid tail gas centralized treatment equipment of claim 1, characterized in that: the second liquid return pipe is inserted into the spraying box body in a splicing mode, and the second liquid return pipe is inserted into the pipe body part of the spraying box body and provided with a spraying head for spraying.

3. The chloroacetic acid tail gas centralized treatment equipment of claim 1, characterized in that: and the interlayer plate is provided with a liquid leakage hole, and the bottom of the liquid leakage hole is provided with a liquid leakage valve for controlling the washing liquid in the upper washing tank to flow into the lower washing tank.

4. The chloroacetic acid tail gas centralized treatment equipment of claim 1, characterized in that: the other valve port of the second three-way valve is connected with a liquid inlet pipe for adding new washing liquid, the other valve port of the first three-way valve is connected with a liquid discharge pipe for discharging the washing liquid in the lower washing tank, and the air inlet end of the Venturi ejector is connected with an external air pump for increasing the air inlet pressure through an air inlet pipe.

5. The chloroacetic acid tail gas centralized treatment equipment of claim 1, characterized in that: a plurality of air outlets are formed in the pipe wall of the air equalizing pipe, a liquid inlet is formed in the top of the upper washing box, and a liquid inlet funnel is connected and installed through a liquid inlet valve and used for adding washing liquid into the upper washing box.