CN210021699U - Waste gas absorption tower of sulfuric acid plant - Google Patents
Waste gas absorption tower of sulfuric acid plant Download PDFInfo
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- CN210021699U CN210021699U CN201920201520.7U CN201920201520U CN210021699U CN 210021699 U CN210021699 U CN 210021699U CN 201920201520 U CN201920201520 U CN 201920201520U CN 210021699 U CN210021699 U CN 210021699U
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Abstract
A waste gas absorption tower for a sulfuric acid plant comprises a tower body, wherein a waste gas inlet is formed in the side wall of the lower part of the tower body, and a waste gas outlet is formed in the side wall of the upper part of the tower body; the top of the tower body is provided with a purified liquid splitter disc which is communicated with a purified liquid inlet arranged at the top of the tower body; the purification liquid distribution plate comprises a main pipe which is vertically arranged, the upper end of the main pipe is open, and the lower end of the main pipe is closed; the upper end of the main pipe is communicated with the purifying liquid inlet; the bottom of the main pipe is provided with a plurality of circles of concentric ring pipes; the main pipe is positioned at the circle center of the concentric ring pipe; the main pipe connects the ring pipes together through a plurality of branch pipes arranged along the radial direction of the ring pipes, so that the main pipe, the branch pipes and the ring pipes are communicated with each other; the bottom of the branch pipe and the bottom of the ring pipe are provided with a plurality of liquid spraying holes; the absorption tower can fully and efficiently absorb the waste gas of the sulfuric acid plant and avoid polluting the environment.
Description
Technical Field
The utility model relates to a sulfuric acid manufacturing device, in particular to a waste gas absorption tower of a sulfuric acid plant.
Background
Sulfuric acid is an important chemical product and is applied to various aspects of life; sulfuric acid plants can produce a large amount of waste gas in the process of producing sulfuric acid, the waste gas contains a large amount of sulfur dioxide and sulfur trioxide, and the waste gas needs to be neutralized by a sodium hydroxide solution to reach the emission standard. The existing absorption tower is used for neutralizing the waste gas by spraying a sodium hydroxide solution from the top, and the waste gas cannot be fully contacted and reacted with the sodium hydroxide solution in such a way, so that the absorption effect is not ideal.
Disclosure of Invention
The utility model aims to provide a: aiming at the problems, the absorption tower for the waste gas of the sulfuric acid plant is provided, the absorption tower can fully and efficiently absorb the waste gas of the sulfuric acid plant, and the pollution to the environment is avoided.
The utility model adopts the technical scheme as follows:
a waste gas absorption tower for a sulfuric acid plant comprises a tower body, wherein a waste gas inlet is formed in the side wall of the lower part of the tower body, and a waste gas outlet is formed in the side wall of the upper part of the tower body; the top of the tower body is provided with a purified liquid splitter disc which is communicated with a purified liquid inlet arranged at the top of the tower body; the purification liquid distribution plate comprises a main pipe which is vertically arranged, the upper end of the main pipe is open, and the lower end of the main pipe is closed; the upper end of the main pipe is communicated with the purifying liquid inlet; the bottom of the main pipe is provided with a plurality of circles of concentric ring pipes; the main pipe is positioned at the circle center of the concentric ring pipe; the main pipe connects the ring pipes together through a plurality of branch pipes arranged along the radial direction of the ring pipes, so that the main pipe, the branch pipes and the ring pipes are communicated with each other; the bottom of the branch pipe and the bottom of the ring pipe are provided with a plurality of liquid spraying holes;
and a plurality of layers of buffer baffles are arranged from the bottom to the top of the tower body.
Furthermore, the buffer baffle plates are staggered left and right and horizontally arranged on the inner wall of the tower body to separate the interior of the tower body into channels communicated in a zigzag manner, and the buffer baffle plates are fully distributed with air holes.
Furthermore, a secondary absorption chamber is connected to the waste gas outlet.
Further, the secondary absorption chamber comprises a secondary absorption inlet and a secondary absorption outlet; the secondary absorption inlet is communicated with the waste gas outlet; and a plurality of purifying liquid spray heads are arranged at the top of the secondary absorption chamber.
Furthermore, a plurality of partition plates are arranged in the secondary absorption chamber, are vertically staggered and are vertically arranged at the top and the bottom of the secondary absorption chamber, so that a passage in zigzag communication exists between the secondary absorption inlet and the secondary absorption outlet, and a purifying liquid spray head is arranged at the bottom of each passage.
Furthermore, a plurality of waste liquid discharge ports are formed in the bottom of the tower body and the top of the secondary absorption chamber; the waste liquid discharge port is connected to a waste liquid collecting tank.
Further, the purifying liquid inlet and the purifying liquid spray head are both connected to the purifying liquid storage pool.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
the utility model discloses, through dividing the liquid dish with the even distribution of purifying liquid to the tower body in, make waste gas and purifying liquid fully contact. Simultaneously, the absorption tower still is connected with the secondary absorption room, can be further absorb waste gas, avoids waste gas to absorb inadequately, discharges and leads to air pollution.
Drawings
FIG. 1 is an overall view of the present invention;
FIG. 2 is a schematic view of a structure of a liquid-separating tray for a cleaning liquid.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
A waste gas absorption tower of a sulfuric acid plant comprises a tower body 2, wherein a waste gas inlet 1 is formed in the side wall of the lower part of the tower body 2, and a waste gas outlet 5 is formed in the side wall of the upper part of the tower body; the top of the tower body is provided with a purified liquid splitter disc 3, and the purified liquid splitter disc 3 is communicated with a purified liquid inlet 4 arranged at the top of the tower body 2; the purification liquid flow distribution disc 3 comprises a main pipe 10 which is vertically arranged, the upper end of the main pipe 10 is open, and the lower end is closed; the upper end of the main pipe 10 is communicated with the purified liquid inlet 4; the bottom of the main pipe 10 is provided with a plurality of circles of concentric ring pipes 12; the main pipe 10 is positioned at the center of the concentric ring pipe 12; the main pipe 10 connects the ring pipes 12 together through a plurality of branch pipes 11 arranged along the radial direction of the ring pipe 12, so that the main pipe 10, the branch pipes 11 and the ring pipe 12 are communicated with each other; the bottom parts of the branch pipe 11 and the ring pipe 12 are provided with a plurality of liquid spraying holes; as shown in fig. 2, the bottom of the main pipe 10 is provided with two circles of concentric circular pipes 12 and 3 branch pipes 11 arranged at equal intervals. The circular pipe 12 and the branch pipe 11 can ensure that the purifying liquid is uniformly distributed in the tower body 2, so that the waste gas is fully absorbed and purified.
A plurality of layers of buffer baffle plates 9 are arranged from the bottom to the top of the tower body 2. Buffer baffle 9 is crisscross about, and the level sets up on 2 inner walls of tower body, separates into the passageway of tortuous intercommunication with 2 interiors of tower body, and is covered with the gas pocket on the buffer baffle 9.
Because the existence of buffer baffle 9 can make the flow time of extension waste gas in tower body 2, make the waste gas tortuous flow, be convenient for and the abundant contact absorption of purifying liquid, improve purifying effect. Meanwhile, the buffer partition plate 9 is provided with air holes, so that the partition plate 8 can be prevented from shielding the contact between the purifying liquid and the waste gas.
And a secondary absorption chamber is also connected to the waste gas outlet 5. The waste gas can be further purified and absorbed by the secondary absorption chamber.
The secondary absorption chamber comprises a secondary absorption inlet and a secondary absorption outlet 7; the secondary absorption inlet is communicated with the waste gas outlet 5; and a plurality of purifying liquid spray heads 6 are arranged at the top of the secondary absorption chamber.
The secondary absorption chamber is internally provided with a plurality of clapboards 8, the clapboards 8 are vertically staggered and vertically arranged at the top and the bottom of the secondary absorption chamber, so that a tortuous and communicated passage is formed between the secondary absorption inlet and the secondary absorption outlet 7, and the bottom of each passage is provided with a purifying liquid spray head 6. The baffle plate 8 is used for storing, so that the waste gas flows in a zigzag manner in the secondary absorption chamber, the sprayed purifying liquid is fully contacted with the waste gas, and the purifying effect is improved.
A plurality of waste liquid discharge ports are formed in the bottom of the tower body 2 and the top of the secondary absorption chamber; the waste liquid discharge port is connected to a waste liquid collecting tank.
The purifying liquid inlet 4 and the purifying liquid spray head 6 are both connected to the purifying liquid storage pool. In the utility model, the purifying liquid is alkaline solution such as sodium hydroxide.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. A sulfuric acid plant waste gas absorption tower is characterized in that: the device comprises a tower body (2), wherein a waste gas inlet (1) is formed in the side wall of the lower part of the tower body (2), a waste gas outlet (5) is formed in the side wall of the upper part of the tower body, a purified liquid distribution disc (3) is arranged at the top of the tower body, and the purified liquid distribution disc (3) is communicated with a purified liquid inlet (4) formed in the top of the tower body (2); the purification liquid flow distribution disc (3) comprises a main pipe (10) which is vertically arranged, the upper end of the main pipe (10) is open, and the lower end of the main pipe is closed; the upper end of the main pipe (10) is communicated with the purified liquid inlet (4); the bottom of the main pipe (10) is provided with a plurality of circles of concentric ring pipes (12); the main pipe (10) is positioned at the circle center of the concentric ring pipe (12); the main pipe (10) connects the ring pipes (12) together through a plurality of branch pipes (11) arranged along the radial direction of the ring pipes (12), so that the main pipe (10), the branch pipes (11) and the ring pipes (12) are communicated with each other; the bottoms of the branch pipe (11) and the ring pipe (12) are provided with a plurality of liquid spraying holes;
a plurality of layers of buffer baffles (9) are arranged from the bottom to the top of the tower body (2).
2. The sulfuric acid plant waste gas absorption tower of claim 1, characterized in that: buffer baffle (9) are left and right staggered, and the level sets up on tower body (2) inner wall, separates into the passageway of tortuous intercommunication with tower body (2) inside, and is covered with the gas pocket on buffer baffle (9).
3. The sulfuric acid plant waste gas absorption tower of claim 2, characterized in that: and the waste gas outlet (5) is also connected with a secondary absorption chamber.
4. The sulfuric acid plant waste gas absorption tower of claim 3, characterized in that: the secondary absorption chamber comprises a secondary absorption inlet and a secondary absorption outlet (7); the secondary absorption inlet is communicated with the waste gas outlet (5); and a plurality of purifying liquid spray heads (6) are arranged at the top of the secondary absorption chamber.
5. The sulfuric acid plant waste gas absorption tower of claim 4, characterized in that: the secondary absorption chamber is internally provided with a plurality of clapboards (8), the clapboards (8) are vertically staggered and vertically arranged at the top and the bottom of the secondary absorption chamber, so that a passage communicated in a zigzag manner is formed between the secondary absorption inlet and the secondary absorption outlet (7), and the bottom of each passage is provided with a purifying liquid spray head (6).
6. The sulfuric acid plant waste gas absorption tower of claim 5, characterized in that: the bottom of the tower body (2) and the top of the secondary absorption chamber are both provided with a plurality of waste liquid discharge ports; the waste liquid discharge port is connected to a waste liquid collecting tank.
7. The sulfuric acid plant waste gas absorption tower of claim 6, characterized in that: and the purifying liquid inlet (4) and the purifying liquid spray head (6) are connected to the purifying liquid storage pool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920201520.7U CN210021699U (en) | 2019-02-15 | 2019-02-15 | Waste gas absorption tower of sulfuric acid plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920201520.7U CN210021699U (en) | 2019-02-15 | 2019-02-15 | Waste gas absorption tower of sulfuric acid plant |
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| Publication Number | Publication Date |
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| CN210021699U true CN210021699U (en) | 2020-02-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920201520.7U Active CN210021699U (en) | 2019-02-15 | 2019-02-15 | Waste gas absorption tower of sulfuric acid plant |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112058055A (en) * | 2020-08-18 | 2020-12-11 | 上海交通大学 | Buffer type intermittent acidolysis flue gas purification device and process |
| CN113069874A (en) * | 2021-03-31 | 2021-07-06 | 中钢集团鞍山热能研究院有限公司 | Treatment system and process suitable for VOCs in chemical production area of coking plant |
| CN113069875A (en) * | 2021-03-31 | 2021-07-06 | 中钢集团鞍山热能研究院有限公司 | Treatment system and process suitable for waste gas of circulating ammonia water pool of coking plant |
-
2019
- 2019-02-15 CN CN201920201520.7U patent/CN210021699U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112058055A (en) * | 2020-08-18 | 2020-12-11 | 上海交通大学 | Buffer type intermittent acidolysis flue gas purification device and process |
| CN113069874A (en) * | 2021-03-31 | 2021-07-06 | 中钢集团鞍山热能研究院有限公司 | Treatment system and process suitable for VOCs in chemical production area of coking plant |
| CN113069875A (en) * | 2021-03-31 | 2021-07-06 | 中钢集团鞍山热能研究院有限公司 | Treatment system and process suitable for waste gas of circulating ammonia water pool of coking plant |
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