CN214809814U

CN214809814U - Waste gas treatment device for trichloroethylene production

Info

Publication number: CN214809814U
Application number: CN202121630471.2U
Authority: CN
Inventors: 杨富国; 官伟; 聂建; 王强
Original assignee: Chongqing Wintinwe Chlor Alkali Chemical Co ltd
Current assignee: Chongqing Wintinwe Chlor Alkali Chemical Co ltd
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2021-11-23
Anticipated expiration: 2031-07-16

Abstract

The utility model belongs to the technical field of trichloroethylene production, and discloses a waste gas treatment device for trichloroethylene production, which comprises a tower body, wherein a polymerization ring is arranged on the inner wall of the tower body, an inner ring channel is arranged inside the polymerization ring, a circulating water tank is arranged outside the tower body, a water pumping pipe is connected outside the circulating water tank, and one end of the water pumping pipe, which is far away from the circulating water tank, is provided with an acid and alkali resistant pump. The cleaning blind area can not appear.

Description

Waste gas treatment device for trichloroethylene production

Technical Field

The utility model belongs to the technical field of trichloroethylene production, concretely relates to waste gas treatment device of trichloroethylene production.

Background

Trichloroethylene is a combustible liquid, and can cause the danger of fire explosion when exposed to open fire and high heat, the trichloroethylene has been used as an analgesic, a metal degreasing agent, an extracting agent, a bactericide, a refrigerant and a clothes dry cleaning agent, and the waste gas discharged during the production of the trichloroethylene contains organic matters such as dichloroethylene, trichloroethylene, tetrachloroethylene, trichloroethane and the like and hydrogen chloride gas, so that the waste gas cannot be directly discharged to the atmosphere and needs to be treated by an acid washing tower.

The pickling tower that uses at present is when using, because spray system can influence the discharge of waste gas to a certain extent, consequently is unfavorable for doing too big, consequently a tower edge has a partial clearance blind area, consequently can appear clearing up the not good condition of effect, and owing to adopt the purification mode that sprays, waste gas can contain certain moisture when discharging, and the moisture forms the drop of water after the pipeline gathering, has the corrosion of certain degree to the blast pipe.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a waste gas treatment device of trichloroethylene production to solve the inside great problem that can have certain clearance blind area and exhaust gas humidity of current pickling tower.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a waste gas treatment device of trichloroethylene production, includes the tower body, the polymerization ring is installed to the inner wall of tower body, and the inside of polymerization ring has seted up inner ring channel, the externally mounted of tower body has circulation tank, and circulation tank's externally connected has the drinking-water pipe, the one end that circulation tank was kept away from to the drinking-water pipe is installed and is met acid and alkali pump, and the output of meeting acid and alkali pump is connected with the outlet pipe, the one end that meets acid and alkali pump was kept away from to the outlet pipe is installed spraying system.

Preferably, an air inlet is formed in one side, away from the circulating water tank, of the tower body, and an observation port is arranged on the surface wall of the tower body.

Preferably, an exhaust pipeline is installed above the tower body, and an exhaust port is formed in one end, far away from the tower body, of the exhaust pipeline.

Preferably, a rain cover is installed above the exhaust port, and a support is installed outside the exhaust pipeline.

Preferably, the bottom of tower body inner wall is provided with the cistern, and cistern and circulating water tank intercommunication each other, the filler is installed to the top of cistern.

Preferably, a microporous filter screen is installed at the top end of the inner wall of the tower body, and water absorption foam is arranged above the microporous filter screen.

Compared with the prior art, the utility model, following beneficial effect has:

(1) the utility model discloses the polymerization ring has been installed to the inner wall that lies in between filler and the spray system in the tower body, and the inside of polymerization ring has seted up inner ring passageway, inner ring passageway's diameter is less than spray system's diameter, during the use, when waste gas rebound to polymerization ring department, inwards gather under the effect of polymerization ring, continue upwards through inner ring passageway, because inner ring passageway's diameter is less than spray system, consequently can ensure that each department waste gas can both be by the aqueous cleaning that spray system spilt, the clearance blind area can not appear.

(2) The utility model discloses microporous filter screen has been installed to the inner wall of spraying system top, and microporous filter screen's top has installed the bubble cotton that absorbs water, during the use, can be mingled with the steam of aquatic after waste gas is purified, thereby make waste gas become moist, when gaseous through thin filter screen, steam in the gas is intercepted, the surplus gas is upwards removed, steam forms the water droplet after gathering in thin filter screen and is adsorbed by the bubble cotton that absorbs water, absorb the drop of water for a long time after, the bubble face that absorbs water is rich hydration, unnecessary water descends under the effect of its dead weight, improve purifying effect and reduce exhaust gas's water content simultaneously.

Drawings

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

FIG. 2 is a perspective view of the polymerization ring of the present invention;

FIG. 3 is a perspective view of the microporous filter screen and the absorbent foam of the present invention;

in the figure: 1. an exhaust duct; 2. water absorption foam; 3. a spray system; 4. polymerizing the ring; 5. a tower body; 6. an air inlet; 7. a reservoir; 8. an acid and alkali resistant pump; 9. a water pumping pipe; 10. a support; 11. a circulating water tank; 12. a water outlet pipe; 13. a viewing port; 14. a microporous filter screen; 15. an exhaust port; 16. a rain cover; 17. an inner ring channel; 18. and (4) filling.

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 present invention provides the following technical solutions: the utility model provides a waste gas treatment device of trichloroethylene production, including tower body 5, polymerization ring 4 is installed to the inner wall of tower body 5, and polymerization ring 4's inside has seted up inner ring passageway 17, inner ring passageway 17's diameter is less than spray system 3's diameter, the externally mounted of tower body 5 has circulating water tank 11, and circulating water tank 11's external connection has drinking-water pipe 9, drinking-water pipe 9 is kept away from circulating water tank 11's one end and is installed acid and alkali-resistant pump 8, and acid and alkali-resistant pump 8's output is connected with outlet pipe 12, outlet pipe 12 is kept away from the one end of acid and alkali-resistant pump 8 and is installed spray system 3, outlet pipe 12 runs through the table wall of tower body 5, its spray system 3 of keeping away from acid and alkali-resistant pump 8 one end is located tower body 5's inside.

Further, an air inlet 6 is formed in one side, away from the circulating water tank 11, of the tower body 5, an observation port 13 is installed on the surface wall of the tower body 5, the air inlet 6 is lower than the observation port 13, and at least two observation windows 13 are formed in the observation port 13.

Further, exhaust duct 1 is installed to the top of tower body 5, and exhaust duct 1 presents the S-shaped, with tower body 5 fixed connection, and exhaust duct 1 keeps away from the one end of tower body 5 and has seted up gas vent 15, and gas vent 15 can set up four, is located exhaust duct 1' S lateral wall department.

Specifically, a rain cover 16 is installed above the exhaust port 15, the rain cover 16 is in a falling body shape, the diameter of the bottom end of the rain cover is far larger than that of the exhaust pipeline 1, and the support 10 is installed outside the exhaust pipeline 1.

It is worth mentioning that the bottom end of the inner wall of the tower body 5 is provided with a reservoir 7, the reservoir 7 is communicated with the circulating water tank 11, a filler 18 is arranged above the reservoir 7, and the filler 18 can be arranged in two layers which are slightly lower than the observation port 13.

Further, a microporous filter screen 14 is installed at the top end of the inner wall of the tower body 5, water absorption foam 2 is arranged above the microporous filter screen 14, the water absorption foam 2 is reflected to be matched with the inclination angle of the top end of the tower bottom 5, and the foam can be compressed, so that the size of the tower can be slightly larger.

The utility model discloses a theory of operation and use flow: when the utility model is used, waste gas is introduced into the gas inlet 6, the acid and alkali resistant pump 8 is started to pump water from the circulating water tank 11, water flow enters the water outlet pipe 12 after passing through the acid and alkali resistant pump 8 and the water pumping pipe 9, and finally the water is sprayed downwards from the spraying system 3, waste gas in the tower body 5 is accumulated inside and then moves upwards, water sprayed in the spraying system 3 is purified in the process, the filler 18 absorbs harmful substances in the waste gas, the water is circulated into the circulating water tank 11 after falling to the reservoir 7, and is continuously pumped in by the acid and alkali resistant pump 8, so that the circulating spraying is completed, the waste gas meets the polymerization ring 4 in the ascending process, and is polymerized by the polymerization ring 4 and then moves upwards from the inner ring channel 17, because the diameter of the inner ring channel 17 is smaller than that of the spraying system 3, the gas passing through can be purified by the water flow, the condition of dead zone can not be purified, the purified gas continues to move upwards, through the microporous filter screen 14, water vapor in the gas is intercepted by the microporous filter screen 14, sufficient water vapor is absorbed by the water absorption foam 2 after forming water drops, the gas continuously moves to the exhaust pipeline 1 along the gap of the water absorption foam 2 and is discharged from the exhaust port 15 at the tail end of the exhaust pipeline 1, the water absorption foam 2 absorbs sufficient water and then presents a water-rich state, and redundant water falls into the tower body 5 due to gravity, so that the purification effect on waste gas is enhanced.

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 waste gas treatment device of trichloroethylene production, includes tower body (5), its characterized in that: the inner wall of tower body (5) is installed polymerization ring (4), and inner ring passageway (17) have been seted up to polymerization ring (4) inside, the externally mounted of tower body (5) has circulation tank (11), and the external connection of circulation tank (11) has drinking-water pipe (9), drinking-water pipe (9) are kept away from the one end of circulation tank (11) and are installed acid and alkali-resistant pump (8), and the output of acid and alkali-resistant pump (8) is connected with outlet pipe (12), outlet pipe (12) are kept away from the one end of acid and alkali-resistant pump (8) and are installed spray system (3).

2. The apparatus for treating waste gas from trichloroethylene production according to claim 1, wherein: an air inlet (6) is formed in one side, far away from the circulating water tank (11), of the tower body (5), and an observation port (13) is installed on the surface wall of the tower body (5).

3. The apparatus for treating waste gas from trichloroethylene production according to claim 2, wherein: an exhaust pipeline (1) is installed above the tower body (5), and an exhaust port (15) is formed in one end, far away from the tower body (5), of the exhaust pipeline (1).

4. The apparatus for treating waste gas from trichloroethylene production according to claim 3, wherein: rain fly (16) are installed to the top of gas vent (15), exhaust duct (1)'s externally mounted has support (10).

5. The apparatus for treating waste gas from trichloroethylene production according to claim 4, wherein: the bottom of tower body (5) inner wall is provided with cistern (7), and cistern (7) and circulating water tank (11) intercommunication each other, filler (18) are installed to the top of cistern (7).

6. The apparatus for treating waste gas from trichloroethylene production according to claim 5, wherein: the top of tower body (5) inner wall is installed micropore filter screen (14), and the top of micropore filter screen (14) is provided with the cotton (2) of bubble that absorbs water.