CN211659659U - Waste gas recovery circulation type pickling bath - Google Patents
Waste gas recovery circulation type pickling bath Download PDFInfo
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- CN211659659U CN211659659U CN201922481794.9U CN201922481794U CN211659659U CN 211659659 U CN211659659 U CN 211659659U CN 201922481794 U CN201922481794 U CN 201922481794U CN 211659659 U CN211659659 U CN 211659659U
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Abstract
A waste gas recycling type pickling tank comprises a tank body, a protective cover, a gas outlet, a feeding rolling shaft, a discharging rolling shaft, a liquid inlet and a liquid outlet; the tank body is arranged into a strip shape; a protective cover is hermetically arranged above the pool body; the protective cover is of an arc structure with a high middle part and a low periphery; a feed inlet is formed at one end of the edge of the protective cover, and a discharge outlet is formed at the other end of the edge of the protective cover; a feeding roller is arranged below the feeding hole; a discharging roller is arranged below the discharging port; the feeding rolling shaft and the discharging rolling shaft are fixed at the bottom of the tank body through a first support frame; conveying rollers are uniformly arranged between the feeding roller and the discharging roller; the liquid inlet and the liquid outlet are arranged at the bottom of the tank body; the air outlet is arranged at the top of the protective cover.
Description
Technical Field
The utility model relates to a technical field is made to the steel band, concretely relates to waste gas recovery circulation type pickling bath.
Background
The pickling line plays a key role before cold rolling production in the field of ferrous metallurgy, and mainly has the main function of removing iron scales and dirt on the surface of a strip steel coil from a hot continuous rolling mill by means of mechanical and chemical actions to obtain a strip steel with a clean surface, wherein the pickling acid comprises sulfuric acid, hydrochloric acid, phosphoric acid, nitric acid, chromic acid, hydrofluoric acid, mixed acid and the like, and most commonly comprises sulfuric acid and hydrochloric acid; a large amount of acid solution may be emitted into the air to form acid mist. Acid mist not only affects human health, but also causes damage to instruments and meters and environmental pollution.
Disclosure of Invention
The utility model aims to avoid the defects of the prior art and provide a waste gas recovery circulation type pickling tank, thereby effectively solving the problems of the prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a waste gas recycling type pickling tank comprises a tank body, a protective cover, a gas outlet, a feeding rolling shaft, a discharging rolling shaft, a liquid inlet and a liquid outlet; the tank body is arranged into a strip shape; a protective cover is hermetically arranged above the pool body; the protective cover is of an arc structure with a high middle part and a low periphery; a feed inlet is formed at one end of the edge of the protective cover, and a discharge outlet is formed at the other end of the edge of the protective cover; a feeding roller is arranged below the feeding hole; a discharging roller is arranged below the discharging port; the feeding rolling shaft and the discharging rolling shaft are fixed at the bottom of the tank body through a first support frame; conveying rollers are uniformly arranged between the feeding roller and the discharging roller; the liquid inlet and the liquid outlet are arranged at the bottom of the tank body; the air outlet is arranged at the top of the protective cover.
Further, a waste gas recovery treatment device is arranged outside the tank body in a close manner; the waste gas recovery and treatment device comprises a water tank, a water inlet, a water tank discharge pipe and a water tank air inlet pipe; the water tank air inlet pipe is communicated with the air outlet; the tail end of the water tank air inlet pipe is arranged at the bottom of the water tank and is always lower than the liquid level in the water tank; the liquid discharge pipe of the water tank is communicated with the liquid inlet; the first valve is arranged on the discharge pipe of the water tank.
Further, an acidimeter is arranged inside the water tank; an acidimeter display 19 is arranged outside the water tank; the acidimeter is connected with the acidimeter display.
Further, the first support frame is arranged to be in a telescopic structure.
Furthermore, an observation window is arranged on the protective cover.
Further, a waste liquid recovery box is arranged at the bottom of the liquid outlet; a channel is arranged between the liquid outlet and the waste liquid recovery tank in a communicating way; and a second valve is arranged on the channel.
Furthermore, waste gas absorption boxes are arranged on the feed inlet and the discharge outlet; and a water-absorbing sponge is arranged in the waste gas absorption box.
Further, a stirring paddle is arranged at the bottom of the tank body; the stirring rake evenly distributed is provided with a plurality of.
Compared with the prior art, the utility model discloses following beneficial effect has at least:
the utility model designs a circulating type pickling tank capable of recycling waste gas, which separates volatilized toxic gas containing hydrogen chloride gas from outside air by a protective cover, and then leads the toxic gas into a waste gas recycling treatment device to dissolve the hydrogen chloride gas in water, and the hydrogen chloride gas enters the pickling tank again after reaching a certain acidity; in addition, the pickling tank is transferred and cleaned in a matched mode through the feeding roller, the discharging roller and the conveying roller, so that workers do not need to contact acid liquor and toxic gas as far as possible, automatic transfer is completed, and dangerousness in the operation process is reduced.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
in the figure: a tank body 1; a protective cover 2; an air outlet 3; a feed roller 4; a discharging roller 5; a liquid inlet 6; a liquid outlet 7; a feed port 8; a discharge port 9; a first support frame 10; a conveying roller 11; an exhaust gas recovery processing device 12; a water tank 13; a water inlet 14; a water tank discharge pipe 15; a tank inlet duct 16; a first valve 17; an acidimeter 18; an acidimeter display 19; an observation window 20; a waste liquid recovery tank 21; a channel 22; a second valve 23; an exhaust gas absorption tank 24; a water-absorbent sponge 25; and a paddle 26.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
As shown in the figure:
example 1:
a waste gas recycling type pickling tank comprises a tank body 1, a protective cover 2, an air outlet 3, a feeding roller 4, a discharging roller 5, a liquid inlet 6 and a liquid outlet 7; the tank body 1 is arranged into a strip shape; a protective cover 2 is hermetically arranged above the pool body 1; the protective cover 2 is arranged into a circular arc structure with a high middle part and a low periphery; a feed inlet 8 is formed at one end of the edge of the protective cover 2, and a discharge outlet 9 is formed at the other end of the protective cover; a feeding roller 4 is arranged below the feeding hole 8; a discharging roller 5 is arranged below the discharging port 9; the feeding roller 4 and the discharging roller 5 are fixed at the bottom of the pool body 1 through a first support frame 10; conveying rollers 11 are uniformly arranged between the feeding roller 4 and the discharging roller 5; the liquid inlet 6 and the liquid outlet 7 are arranged at the bottom of the tank body 1; the air outlet 3 is arranged at the top of the protective cover 2.
Example 2:
on the basis of the embodiment 1, an exhaust gas recovery and treatment device 12 is arranged outside the tank body 1; the waste gas recovery and treatment device 12 comprises a water tank 13, a water inlet 14, a water tank discharge pipe 15 and a water tank inlet pipe 16; the water tank air inlet pipe 16 is communicated with the air outlet 3; the tail end of the water tank air inlet pipe 16 is arranged at the bottom of the water tank 13 and is always lower than the liquid level in the water tank 13; the water tank liquid discharge pipe 15 is communicated with the liquid inlet 6; a first valve 17 is arranged on the tank discharge 15.
Example 3:
on the basis of the embodiment 1-2, an acidity meter 18 is arranged inside the water tank 13; an acidimeter display 19 is arranged outside the water tank 13; the acidimeter 18 is connected to an acidimeter display 19. The acidity meter 18 monitors the acidity of the liquid in the water tank 13 in real time to meet the acidity requirement.
Example 4:
on the basis of the embodiments 1-3, the first support frame 10 is provided in a telescopic structure. During feeding, the first support frame 10 where the feeding roller 4 is arranged is extended to the outside of the feeding hole, a steel belt roll is installed, then the steel belt roll is shortened to enter a pickling tank, and the steel belt roll moves in the pickling tank in cooperation with the conveying roller 5; and similarly, the discharging roller 5 is extended during discharging, and the cleaned steel strip coil is taken down, so that one round of cleaning is completed.
Example 5:
on the basis of the embodiments 1 to 4, the protective cover 2 is provided with the observation window 20.
Example 6:
on the basis of the embodiments 1 to 5, a waste liquid recovery tank 21 is arranged at the bottom of the liquid outlet 7; a channel 22 is communicated between the liquid outlet 7 and the waste liquid recovery tank 21; a second valve 23 is arranged in the passage 22. When liquid in the pond needs to be changed, put into the waste liquid collection box with the waste liquid, carry out neutralization, handle the back in the waste liquid collection box, reach the emission requirement.
Example 7:
on the basis of the embodiments 1 to 6, the feed inlet 8 and the discharge outlet 9 are provided with an exhaust gas absorption box 24; and a water absorption sponge 25 is arranged in the waste gas absorption box 24. The hydrogen chloride gas is very soluble in water, and sponges full of water are additionally arranged at the feed inlet 8 and the discharge outlet 9. The overflow of the waste gas at the inlet and the outlet can be reduced to a certain extent.
Example 8:
on the basis of the embodiments 1 to 7, the bottom of the tank body 1 is provided with a stirring paddle 26; a plurality of stirring paddles 26 are uniformly distributed.
The utility model designs a circulating type pickling tank capable of recycling waste gas, which separates volatilized toxic gas containing hydrogen chloride gas from outside air by a protective cover, and then leads the toxic gas into a waste gas recycling treatment device to dissolve the hydrogen chloride gas in water, and the hydrogen chloride gas enters the pickling tank again after reaching a certain acidity; in addition, the pickling tank is transferred and cleaned in a matched mode through the feeding roller, the discharging roller and the conveying roller, so that workers do not need to contact acid liquor and toxic gas as far as possible, automatic transfer is completed, and dangerousness in the operation process is reduced.
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 (8)
1. A waste gas recovery circulation type pickling tank is characterized by comprising a tank body (1), a protective cover (2), a gas outlet (3), a feeding rolling shaft (4), a discharging rolling shaft (5), a liquid inlet (6) and a liquid outlet (7); the tank body (1) is arranged into a strip shape; a protective cover (2) is hermetically arranged above the tank body (1); the protective cover (2) is arranged to be of an arc structure with a high middle part and a low periphery; a feed inlet (8) is formed in one end of the edge of the protective cover (2), and a discharge outlet (9) is formed in the other end of the protective cover; a feeding roller (4) is arranged below the feeding hole (8); a discharging roller (5) is arranged below the discharging port (9); the feeding roller (4) and the discharging roller (5) are fixed at the bottom of the tank body (1) through a first support frame (10); conveying rollers (11) are uniformly arranged between the feeding roller (4) and the discharging roller (5); the liquid inlet (6) and the liquid outlet (7) are arranged at the bottom of the tank body (1); the air outlet (3) is arranged at the top of the protective cover (2).
2. The pickling bath according to claim 1, wherein an exhaust gas recovery treatment device (12) is disposed immediately outside the pickling bath (1); the waste gas recovery and treatment device (12) comprises a water tank (13), a water inlet (14), a water tank discharge pipe (15) and a water tank air inlet pipe (16); the water tank air inlet pipe (16) is communicated with the air outlet (3); the tail end of the water tank air inlet pipe (16) is arranged at the bottom of the water tank (13) and is always lower than the liquid level in the water tank (13); the water tank liquid discharge pipe (15) is communicated with the liquid inlet (6); a first valve (17) is arranged on the water tank discharge pipe (15).
3. The pickling bath according to claim 2, wherein an acidimeter (18) is disposed inside the water tank (13); an acidimeter display (19) is arranged outside the water tank (13); the acidimeter (18) is connected with an acidimeter display (19).
4. An exhaust gas recycling pickling bath according to claim 1, characterized in that said first supporting frame (10) is provided in a telescopic configuration.
5. An exhaust gas recycling pickling bath according to claim 1, characterized in that said protective hood (2) is provided with a viewing window (20).
6. The pickling bath with waste gas recycling as claimed in claim 1, wherein a waste liquid recycling tank (21) is arranged at the bottom of the liquid outlet (7); a channel (22) is communicated between the liquid outlet (7) and the waste liquid recovery tank (21); a second valve (23) is arranged on the channel (22).
7. The pickling bath according to claim 1, wherein the feed inlet (8) and the discharge outlet (9) are provided with a waste gas absorption tank (24); and a water absorption sponge (25) is arranged in the waste gas absorption box (24).
8. The pickling bath according to claim 1, wherein the bottom of the pickling bath (1) is provided with a stirring paddle (26); a plurality of stirring paddles (26) are uniformly distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922481794.9U CN211659659U (en) | 2019-12-31 | 2019-12-31 | Waste gas recovery circulation type pickling bath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922481794.9U CN211659659U (en) | 2019-12-31 | 2019-12-31 | Waste gas recovery circulation type pickling bath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211659659U true CN211659659U (en) | 2020-10-13 |
Family
ID=72736350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922481794.9U Active CN211659659U (en) | 2019-12-31 | 2019-12-31 | Waste gas recovery circulation type pickling bath |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211659659U (en) |
-
2019
- 2019-12-31 CN CN201922481794.9U patent/CN211659659U/en active Active
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