CN212855278U

CN212855278U - Tail gas processing apparatus of sodium perchlorate production usefulness

Info

Publication number: CN212855278U
Application number: CN202021614698.3U
Authority: CN
Inventors: 喻学敏; 李昊赟; 杨强; 黄军
Original assignee: Jiangxi Yongning Technology Co ltd
Current assignee: Jiangxi Yongning Technology Co ltd
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2021-04-02
Anticipated expiration: 2030-08-06

Abstract

The utility model discloses a tail gas processing device for sodium perchlorate production, which comprises a top plate, the upper end of the right side of the top plate is provided with an adsorption box body, the inner cavity of the adsorption box body is provided with alkali liquor, the upper part of the left side of the top plate is provided with a spray box body, the top end of the adsorption box body is provided with an air inlet main pipe, the bottom end of the air inlet main pipe extends into the alkali liquor, the pipe diameter is firstly increased and then is arranged into a plurality of groups of air inlet branch pipes, the air inlet branch pipes are provided with a plurality of air outlet holes, the upper end of the left side wall of the adsorption box body is communicated with the middle part of the right side wall of the spray box body through an air inlet pipe, the middle part of the left side of the spray box body is provided with an exhaust pipe, the left side wall and the right side wall of, the alkali liquor sprayed downwards by the spray header efficiently treats the chlorine in the tail gas.

Description

Tail gas processing apparatus of sodium perchlorate production usefulness

Technical Field

The utility model relates to a chlorine processing technology field specifically is a tail gas processing apparatus of sodium perchlorate production usefulness.

Background

The industrial sodium perchlorate generally adopts a production process of electrolyzing sodium chlorate by direct current, a small amount of chlorine gas, the chemical formula of which is Cl2, and toxic gas with strong pungent smell is generated in the electrolysis process, the chlorine gas has wide application in the production and living processes of human beings, particularly, the chlorine gas is an important raw material in the chemical field, but the chlorine gas is toxic and has strong irritation, if the chlorine gas is not properly treated, leakage or explosion is caused, personal casualties and ecological environment damage are caused, and the human body health is seriously affected, however, the chlorine gas cannot be effectively treated in the traditional sodium perchlorate production process, the effect of removing the chlorine gas can not be well displayed, and if the chlorine gas cannot be discharged to the extent of harmlessness to the human body, the chlorine gas also can have serious effect on the human body health.

SUMMERY OF THE UTILITY MODEL

The utility model aims to improve and innovate the defects and problems existing in the background technology and provide a tail gas treatment device for sodium perchlorate production.

A tail gas treatment device for sodium perchlorate production comprises a top plate, wherein an adsorption box body is installed at the upper end of the right side of the top plate, alkali liquor is arranged in the inner cavity of the adsorption box body, a connecting rod is connected at the upper end of the left side of the top plate through a bolt, a spray box body is connected at the top end of the connecting rod through a bolt, a gas inlet main pipe is arranged at the top end of the adsorption box body, the pipe diameter of the gas inlet main pipe is firstly increased after the bottom end of the gas inlet main pipe extends into the alkali liquor and then is arranged into a plurality of groups of gas inlet branch pipes, a plurality of gas outlet holes are uniformly formed in the gas inlet branch pipes, a gas inlet pipe is fixedly communicated with the upper end of the left side wall of the adsorption box body, one end of the gas inlet pipe, which is far away from the adsorption, the second outlet end fixedly connected with muffler of three-way valve, the muffler one end of keeping away from the three-way valve and the fixed intercommunication of house steward that admits air are provided with air pump and reduction gear on, the lateral wall all is provided with the baffle about the spray box, and the baffle inclines in the spray box and sets up, and right side baffle and spray box junction are located the upper end of intake pipe, and the left side baffle is located the lower extreme of blast pipe with the spray box junction, and the inside upper end of spray box is provided with the shower, the shower bottom evenly is provided with a plurality of shower heads.

In this embodiment: the inner cavity of the speed reducer is communicated with the air return pipe, and the side wall of the speed reducer is provided with a convex part.

In this embodiment: the type of the chlorine content detector is DR70C-CL2, and the chlorine content detector is electrically connected with the three-way valve and the air pump.

In this embodiment: the lower surface four corners department of roof is provided with the supporting leg, the supporting leg mid-mounting is placed the board, place the board upper end and install the waste liquid case, the last fixed intercommunication of waste liquid case has the fluid-discharge tube, the one end that the waste liquid case was kept away from to the fluid-discharge tube is linked together with the absorption bottom half.

In this embodiment: and a PH detector for detecting the PH value of the alkali liquor is mounted on the right side wall of the adsorption box body, and the type of the PH detector is MIK-PH 160.

In this embodiment: and a liquid inlet pipe is arranged on the right side of the upper end of the adsorption box body.

In this embodiment: the spraying box body is characterized in that a liquid return pipe is fixedly communicated with the bottom of the spraying box body, and one end, far away from the spraying box body, of the liquid return pipe is communicated with the bottom of the adsorption box body.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the pipe diameter of the bottom end of the main gas inlet pipe is firstly increased and then the main gas inlet pipe is arranged into a plurality of groups of gas inlet branch pipes, a plurality of gas outlet holes are uniformly formed in the gas inlet branch pipes, so that the flow speed of tail gas can be reduced, the contact area of the tail gas and alkali liquor is increased, the alkali liquor and chlorine in the tail gas can be fully reacted, the chlorine is absorbed, part of unabsorbed chlorine enters the spraying box body through the gas inlet pipe, the tail gas is guided to flow in a circuitous way by the partition plates arranged on the left side wall and the right side wall in the spraying box body, the retention time of the tail gas in the spraying box body is prolonged, meanwhile, the tail gas flows;

(2) through the installation chlorine content detector on the blast pipe, chlorine content detector is arranged in detecting the chlorine content in the tail gas, chlorine content in the tail gas is still high, the three-way valve switches to the second exit end, the air pump is taken back to the inlet manifold through the muffler with tail gas again, tail gas gets into and adsorbs the box and carries out the secondary treatment, chlorine content in the tail gas reaches emission standard, the three-way valve switches to first exit end, tail gas passes through the outlet duct and directly discharges into the external environment in, effectively avoid chlorine to discharge the environment and cause the pollution and cause the injury to the health.

(3) The reducer is arranged at the rear end of the air pump on the air return pipe, and a bulge in the reducer can increase the resistance of a pipeline, reduce the reflux speed of tail gas and avoid the phenomenon that the tail gas flows backwards in the air inlet main pipe due to too high speed;

drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic diagram of the internal structure of the speed reducer of the present invention.

Reference numerals: adsorption tank body 1, alkali liquor 2, air inlet branch pipe 3, PH detector 4, roof 5, supporting leg 6, fluid-discharge tube 7, place board 8, venthole 9, waste liquid case 10, liquid return pipe 11, connecting rod 12, blast pipe 13, three-way valve 14, outlet duct 15, chlorine content detector 16, baffle 17, air pump 18, shower 19, shower 20, reduction gear 21, air return pipe 22, bellying 23, intake pipe 24, air inlet manifold 25, feed liquor pipe 26, shower 27.

Detailed Description

The present invention will be described in further detail with reference to fig. 1 to 2.

A tail gas treatment device for sodium perchlorate production comprises a top plate 5, wherein an adsorption box body 1 is installed at the upper end of the right side of the top plate 5, an alkali liquor 2 is arranged in the inner cavity of the adsorption box body 1, a connecting rod 12 is connected to the upper end of the left side of the top plate 5 through a bolt, a spray box body 27 is connected to the top end of the connecting rod 12 through a bolt, an air inlet main pipe 25 is arranged at the top end of the adsorption box body 1, the bottom end of the air inlet main pipe 25 extends into the alkali liquor 2 and then is increased in pipe diameter to form a plurality of groups of air inlet branch pipes 3, a plurality of air outlet holes 9 are uniformly formed in the air inlet branch pipes 3, on one hand, the flow rate of tail gas can be reduced, on the other hand, the contact area between the tail gas and the alkali liquor 2 is increased, the full reaction between the alkali liquor 2 and the chlorine, an exhaust pipe 13 is fixedly communicated with the middle part of the left side of the spraying box body 27, a chlorine content detector 16 is arranged on the exhaust pipe 13, a three-way valve 14 is fixedly communicated with the left end of the exhaust pipe 13, an outlet pipe 15 is fixedly connected with the first outlet end of the three-way valve 14, an air return pipe 22 is fixedly connected with the second outlet end of the three-way valve 14, one end of the air return pipe 22, which is far away from the three-way valve 14, is fixedly communicated with an air inlet main 25, an air pump 18 and a speed reducer 21 are arranged on the air return pipe 22, partition plates 17 are arranged on the left side wall and the right side wall of the spraying box body 27, the partition plates 17 are obliquely arranged in the spraying box body 27, the joint of the right side partition plate 17 and the spraying box body 27 is arranged at the upper end of the air inlet pipe 24, unabsorbed chlorine enters the spraying box body 27 through the air inlet pipe 24, the partition plates 17 arranged on the left side wall and the right side wall in the spraying box body 27 guide tail gas to flow in a roundabout mode, residence time of the tail gas in the spraying box body 27 is prolonged, meanwhile, the tail gas flows upwards between the partition plates 17, and alkali liquor sprayed downwards with the spraying heads 20 is used for efficiently treating the chlorine in the tail gas.

In this embodiment: the inner cavity of the speed reducer 21 is communicated with the air return pipe 22, the side wall of the speed reducer 21 is provided with the protruding part 23, the protruding part 23 can reduce the backflow speed of the tail gas, and the backflow of the tail gas in the air inlet main pipe 25 due to too fast flow speed is avoided.

In this embodiment: the model of the chlorine content detector 16 is DR70C-CL2, chlorine content detector 16 and three-way valve 14 and air pump 18 electric connection, chlorine content detector 16 is arranged in detecting the chlorine content in the tail gas, when the chlorine content in the tail gas is still high, three-way valve 14 switches to the second outlet end, air pump 18 takes the tail gas back to air intake manifold 25 through muffler 22, the tail gas gets into adsorption tank 1 and carries out secondary treatment, when the chlorine content in the tail gas reaches the emission standard, three-way valve 14 switches to the first outlet end, the tail gas directly discharges into the external environment through outlet duct 15, effectively avoid chlorine to discharge the environment and cause the pollution and cause the injury to the health of human body.

In this embodiment: the lower surface four corners department of roof 5 is provided with supporting

leg

6, 6 mid-mounting of supporting leg places board 8, place board 8 upper end and install waste liquid case 10, the last fixed intercommunication of waste liquid case 10 has fluid-discharge tube 7, the one end that waste liquid case 10 was kept away from to fluid-discharge tube 7 is linked together with absorption box 1 bottom, feed liquor pipe 26 is installed on the upper end right side of absorption box 1, and PH detector 4 that is used for detecting alkali lye PH value is installed to absorption box 1 right side wall, the model of PH detector 4 is MIK-PH160, detects the alkali lye PH of absorption box 1 after low partially when PH detector 4, can discharge the alkali lye in the absorption box 1 to waste liquid case 10, rethread feed liquor pipe 26 is to the interior supplementary alkali lye 2 of absorption box 1.

In this embodiment: the bottom of the spraying box body 27 is fixedly communicated with a liquid return pipe 11, one end of the liquid return pipe 11, which is far away from the spraying box body 27, is communicated with the bottom of the adsorption box body 1, and after neutralization reaction between alkali liquor sprayed by the spraying head 20 and chlorine occurs, the alkali liquor can flow back to the adsorption box body 1 through the liquid return pipe 11 and enters the waste liquid box 10 through the liquid discharge pipe 7.

The utility model discloses a theory of operation is: when the tail gas absorption device is used specifically, tail gas firstly enters the absorption box body 1 through the main gas inlet pipe 25 and then is uniformly dispersed in alkali liquor through the gas outlet holes 9 on the branch gas inlet pipes 3, the alkali liquor fully reacts with chlorine in the tail gas to absorb chlorine, part of unabsorbed chlorine enters the spraying box body 27 through the gas inlet pipe 26, the partition plates 17 arranged on the left side wall and the right side wall in the spraying box body 27 guide the tail gas to flow in a roundabout manner to prolong the retention time of the tail gas in the spraying box body 27, meanwhile, the tail gas flows upwards between the partition plates 17 and fully reacts with the alkali liquor sprayed downwards by the spraying heads 20, the fully-separated tail gas is discharged out of the spraying box body 27 through the exhaust pipe 13, the chlorine content detector 16 on the exhaust pipe 13 detects the chlorine content in the tail gas, when the chlorine content in the tail gas is still high, the three-way valve 14, tail gas gets into and adsorbs box 1 and carries out secondary treatment, and chlorine content in the tail gas reaches emission standard, and three-way valve 14 switches to first exit end, and during tail gas passed through outlet duct 15 directly discharged external environment, wherein the rear end that lies in air pump 18 on muffler 22 is provided with reduction gear 21, and bellying 23 in reduction gear 21 can increase the pipeline resistance, reduces tail gas reflux speed, avoids the too fast refluence in inlet manifold 25 of tail gas flow velocity.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A tail gas processing apparatus of sodium perchlorate production usefulness, includes roof (5), its characterized in that: the adsorption box body (1) is installed at the upper end of the right side of the top plate (5), an alkali liquor (2) is arranged in the inner cavity of the adsorption box body (1), a connecting rod (12) is connected to the upper end of the left side of the top plate (5) through a bolt, a spray box body (27) is connected to the top end of the connecting rod (12) through a bolt, an air inlet main pipe (25) is arranged at the top end of the adsorption box body (1), the bottom end of the air inlet main pipe (25) stretches into the alkali liquor (2) and then the pipe diameter of the air inlet main pipe is increased to form a plurality of groups of air inlet branch pipes (3), a plurality of air outlet holes (9) are uniformly formed in the air inlet branch pipes (3), an air inlet pipe (24) is fixedly communicated with the upper end of the left side wall of the adsorption box body (1), one end of, the chlorine content detector (16) is arranged on the exhaust pipe (13), the left end of the exhaust pipe (13) is fixedly communicated with a three-way valve (14), a first outlet end of the three-way valve (14) is fixedly connected with an air outlet pipe (15), a second outlet end of the three-way valve (14) is fixedly connected with an air return pipe (22), one end, away from the three-way valve (14), of the air return pipe (22) is fixedly communicated with an air inlet main pipe (25), an air pump (18) and a speed reducer (21) are arranged on the air return pipe (22), partition plates (17) are arranged on the left side wall and the right side wall of the spraying box body (27), the partition plates (17) are obliquely arranged in the spraying box body (27), the joint of the right partition plate (17) and the spraying box body (27) is positioned at the upper end of the air inlet pipe (24), the joint of the left partition plate (17) and the, the bottom end of the spray pipe (19) is uniformly provided with a plurality of spray headers (20).

2. The apparatus for treating tail gas from sodium perchlorate production according to claim 1, characterized in that: the inner cavity of the speed reducer (21) is communicated with the air return pipe (22), and the side wall of the speed reducer (21) is provided with a convex part (23).

3. The apparatus for treating tail gas from sodium perchlorate production according to claim 1, characterized in that: the type of the chlorine content detector (16) is DR70C-CL2, and the chlorine content detector (16) is electrically connected with the three-way valve (14) and the air pump (18).

4. The apparatus for treating tail gas from sodium perchlorate production according to claim 1, characterized in that: the lower surface four corners department of roof (5) is provided with supporting leg (6), supporting leg (6) mid-mounting has places board (8), place board (8) upper end and install waste liquid case (10), fixed intercommunication has fluid-discharge tube (7) on waste liquid case (10), the one end that waste liquid case (10) were kept away from in fluid-discharge tube (7) is linked together with absorption box (1) bottom.

5. The apparatus for treating tail gas from sodium perchlorate production according to claim 1, characterized in that: the PH detector (4) for detecting the PH value of the alkali liquor is installed on the right side wall of the adsorption box body (1), and the type of the PH detector (4) is MIK-PH 160.

6. The apparatus for treating tail gas from sodium perchlorate production according to claim 1, characterized in that: and a liquid inlet pipe (26) is installed on the right side of the upper end of the adsorption box body (1).

7. The apparatus for treating tail gas from sodium perchlorate production according to claim 1, characterized in that: the bottom of the spraying box body (27) is fixedly communicated with a liquid return pipe (11), and one end, far away from the spraying box body (27), of the liquid return pipe (11) is communicated with the bottom of the adsorption box body (1).