CN219050842U

CN219050842U - Tail gas treatment device for extraction tower

Info

Publication number: CN219050842U
Application number: CN202223343822.9U
Authority: CN
Inventors: 葛新力
Original assignee: Yuanda Hunan Renewable Fuel Co ltd
Current assignee: Yuanda Hunan Renewable Fuel Co ltd
Priority date: 2022-12-13
Filing date: 2022-12-13
Publication date: 2023-05-23
Anticipated expiration: 2032-12-13

Abstract

The utility model discloses a tail gas treatment device for an extraction tower, which belongs to the technical field of tail gas treatment and comprises an extraction tower and a tail gas pipe arranged on the extraction tower, wherein an air pressure valve is arranged on the tail gas pipe, the end part of the tail gas pipe is connected with a connecting pipe and a circulating pipe through a three-way pipe, the connecting pipe and the circulating pipe are both provided with opening and closing valves for a controller, the end part of the connecting pipe is connected with a treatment box, and the end part of the circulating pipe is connected with a circulation box which is communicated with the treatment box, so that go discharged by the extraction tower is conveniently conveyed from the connecting pipe into the treatment box for first treatment, and after the first absorption treatment, the treated gas can enter the circulation box, and the absorbed gas can enter the upper part of the circulation box.

Description

Tail gas treatment device for extraction tower

Technical Field

The utility model relates to the technical field of tail gas treatment, in particular to a tail gas treatment device for an extraction tower.

Background

The extraction tower is also called extraction tower, which is a liquid-liquid mass transfer device commonly used in the industry departments of chemical industry, petroleum refining, environmental protection, etc. Liquid-liquid extraction is a mass transfer method, in which one or more components of a mixture solution are extracted with another liquid (called a solvent, which is not compatible with the solvent of the mixture solution), so that the components are separated, enriched and purified. This process is called extraction, liquid-liquid extraction, solvent extraction process. The apparatus used is called extractor, which is a tower apparatus called extraction tower, with one or more extractions, with gaps and a division of the continuous extraction process.

The extraction tower can produce tail gas in the course of working, so need use processing apparatus to handle, but current processing apparatus most has certain not enough, and ordinary tail gas processing apparatus just discharges the air after only once treating tail gas, and once handle and hardly guarantee that tail gas treatment reaches the standard of discharging to the air, so we propose a tail gas processing apparatus that extraction tower was used.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a tail gas treatment device for an extraction tower, which solves the problems.

(II) technical scheme

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the tail gas treatment device for the extraction tower comprises the extraction tower and a tail gas pipe arranged on the extraction tower, wherein an air pressure valve is arranged on the tail gas pipe, the end part of the tail gas pipe is connected with a connecting pipe and a circulating pipe through a three-way pipe, and the connecting pipe and the circulating pipe are both provided with an opening and closing valve for opening and closing a controller;

the end part of the connecting pipe is connected with a treatment box, the end part of the circulating pipe is connected with a circulating box, and the circulating box is communicated with the treatment box;

a circulating assembly is further arranged between the circulating box and the processing box and used for circulating and conveying the processing liquid in the circulating box and the processing box;

an exhaust pipe is arranged at the upper part of the side face of the circulation box, and a control valve is arranged on the exhaust pipe.

Preferably, the bottom surfaces of the circulation box and the treatment box are provided with supporting seats, and the circulation assembly is arranged on the supporting seats.

Preferably, the circulating assembly comprises a liquid pump arranged on the supporting seat, two ports of the liquid pump are respectively connected with a communicating pipe and a transfusion pipe, the end part of the communicating pipe is connected with the upper outer wall of the circulating box, and the port of the transfusion pipe is connected with the upper outer wall of the treatment box.

Preferably, the upper outer wall of the treatment box is fixed with a fixed pipe, the inner side surface of the fixed pipe is provided with a plurality of spray heads, the spray heads extend into the treatment box, and the infusion pipe is connected to the bottom of the fixed pipe.

Preferably, a communication port is formed between the circulation box and the lower part of the treatment box, a liquid inlet pipe is arranged on the upper part of the treatment box, a liquid discharge pipe is arranged on the outer wall of the lower part of the circulation box, and a sealing cap is arranged on the liquid inlet pipe and the liquid discharge pipe.

(III) beneficial effects

The utility model provides a tail gas treatment device for an extraction tower. The beneficial effects are as follows: thereby make things convenient for extraction tower exhaust weiqi to carry out the first time from the connecting pipe and handle in the case to after the first absorption treatment, the gas after the processing can enter into the circulation case, and then the gas after the absorption can enter into the upper portion department of circulation case, after the tail gas of the area absorption treatment, conveniently in its circulation of making the tail gas pass through the circulation pipe to handle again in the case, make it reach the effect of multiple treatment.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the connection of a treatment tank and a circulation tank in the present utility model;

fig. 3 is a schematic structural view of a fixing tube in the present utility model.

In the figure: 1. an extraction column; 2. a tail gas pipe; 3. a three-way pipe; 4. a connecting pipe; 5. a circulation pipe; 6. a treatment box; 7. a circulation box; 8. a support base; 9. a first opening/closing valve; 10. a second opening/closing valve; 11. an exhaust pipe; 12. a control valve; 13. a liquid pump; 14. a communicating pipe; 15. an infusion tube; 16. a fixed tube; 17. a spray head; 18. a liquid inlet pipe; 19. a communication port; 20. and an air pressure valve.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the present utility model provides a technical solution: the tail gas treatment device for the extraction tower comprises the extraction tower 1 and a tail gas pipe 2 arranged on the extraction tower, wherein an air pressure valve 20 is arranged on the tail gas pipe 2, the end part of the tail gas pipe 2 is connected with a connecting pipe 4 and a circulating pipe 5 through a three-way pipe 3, the connecting pipe 4 and the circulating pipe 5 are respectively provided with an opening and closing valve for controlling opening and closing of a controller, and the opening and the closing valve are a first opening and closing valve 9 arranged on the connecting pipe 4 and a second opening and closing valve 10 arranged on the circulating pipe 5, so that the effects of controlling the opening and the closing valves respectively are achieved;

the end part of the connecting pipe 4 is connected to the top surface of the processing box 6, the end part of the circulating pipe 5 is connected to the top surface of the circulating box 7, the circulating box 7 is communicated with the processing box 6 and arranged on the supporting seat 8, a communication port 19 is formed between the circulating box 7 and the lower part of the processing box 6, and processing liquid circulates from the communication port 19;

the circulating assembly is further arranged between the circulating box 7 and the processing box 6 and used for circulating and conveying processing liquid in the circulating box 7 and the processing box 6, the circulating assembly comprises a liquid pump 13 arranged on the supporting seat 8, two ports of the liquid pump 13 are respectively connected with a communicating pipe 14 and a liquid conveying pipe 15, the end part of the communicating pipe 14 is connected with the upper outer wall of the circulating box 7, the liquid pump 13 is used for pumping the processing liquid at the upper part of the circulating box 7 through the communicating pipe 14, the relative concentration of the upper processing liquid is higher, the full effect of the processing liquid is facilitated, the port of the liquid conveying pipe 15 is connected with the upper outer wall of the processing box 6, the upper outer wall of the processing box 6 is fixedly provided with a fixed pipe 16, the inner side surface of the fixed pipe 16 is provided with a plurality of spray heads 17, the spray heads 17 extend into the processing box 6, and the liquid conveying pipe 15 is connected with the bottom of the fixed pipe 16, so that under the effect of the spray heads 17, after tail gas enters the processing box 6, the full effect of the processing liquid and the tail gas can be mixed under the effect of the excessive spray heads 17;

an exhaust pipe 11 is provided at the upper side of the circulation box 7, a control valve 12 is provided on the exhaust pipe 11, and the exhaust pipe 11 is used for discharging the treated exhaust gas.

The upper part of the treatment box 6 is provided with a liquid inlet pipe 18 for adding liquid and changing liquid, the outer wall of the lower part of the circulation box 7 is provided with a liquid discharge pipe, and the liquid inlet pipe 18 and the liquid discharge pipe are provided with a sealing cap, and the sealing cap is provided with threads thereon, so that the liquid can be conveniently unscrewed and sealed.

The tail gas generated by the extraction tower firstly enters the treatment box 6 through the connecting pipe, then the treatment liquid is sprayed out of the spray head 17 under the action of the liquid pump 13, the treatment liquid and the tail gas are enabled to fully act, the tail gas and the treatment liquid are recycled to the circulation box 7 after being doped, the treated tail gas overflows to the upper part of the circulation box 7 from the treatment liquid, after the tail gas is treated, the air pressure valve 20 is closed and the second opening and closing valve 10 is opened, the tail gas treated in the circulation box 7 is enabled to enter the treatment box 6 through the connecting pipe 4 again after passing through the circulation pipe 7 for treatment again, so that go discharged by the extraction tower is conveniently conveyed to the treatment box from the connecting pipe for first treatment, after the first absorption treatment, the treated gas can enter the circulation box, and the absorbed gas can enter the upper part of the circulation box, and after the treatment of the tail gas is absorbed, the tail gas is conveniently recycled to the treatment box through the circulation pipe after the absorption treatment, and the effect of repeated treatment is achieved.

It is noted that relational terms such as first and second, and the like are 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. Moreover, 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. The term "comprising" an element defined by the term "comprising" does not exclude the presence of other identical elements in a process, method, article or apparatus that comprises the element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a tail gas processing apparatus that extraction tower was used, includes extraction tower (1) and sets up tail gas pipe (2) above that, is provided with pneumatic valve (20), its characterized in that on tail gas pipe (2): the end part of the tail gas pipe (2) is connected with a connecting pipe (4) and a circulating pipe (5) through a three-way pipe (3), and the connecting pipe (4) and the circulating pipe (5) are provided with an opening and closing valve for opening and closing a controller;

the end part of the connecting pipe (4) is connected with a treatment box (6), the end part of the circulating pipe (5) is connected with a circulating box (7), and the circulating box (7) is communicated with the treatment box (6);

a circulating assembly is further arranged between the circulating box (7) and the processing box (6) and used for circulating and conveying the processing liquid in the circulating box and the processing box;

an exhaust pipe (11) is arranged at the upper part of the side surface of the circulation box (7), and a control valve (12) is arranged on the exhaust pipe (11).

2. The tail gas treatment device for an extraction column according to claim 1, wherein: the bottom surfaces of the circulation box (7) and the treatment box (6) are provided with supporting seats (8), and the circulation assembly is arranged on the supporting seats (8).

3. The tail gas treatment device for an extraction column according to claim 2, wherein: the circulating assembly comprises a liquid pump (13) arranged on a supporting seat (8), two ports of the liquid pump (13) are respectively connected with a communicating pipe (14) and a transfusion pipe (15), the end part of the communicating pipe (14) is connected with the upper outer wall of a circulating box (7), and the port of the transfusion pipe (15) is connected with the upper outer wall of a processing box (6).

4. A tail gas treatment apparatus for an extraction column as claimed in claim 3, wherein: the upper outer wall of the treatment box (6) is fixed with a fixed pipe (16), the inner side surface of the fixed pipe (16) is provided with a plurality of spray heads (17), the spray heads (17) extend into the treatment box (6), and the infusion pipe (15) is connected to the bottom of the fixed pipe (16).

5. The tail gas treatment device for an extraction column according to claim 1, wherein: a communication port (19) is formed between the circulation box (7) and the lower part of the treatment box (6), a liquid inlet pipe (18) is arranged on the upper part of the treatment box (6), a liquid discharge pipe is arranged on the outer wall of the lower part of the circulation box (7), and a sealing cap is arranged on the liquid inlet pipe (18) and the liquid discharge pipe.