CN-121971936-A - Gas dust removing device

Abstract

The invention discloses a gas dust removal device, which comprises a tower body, wherein a washing liquid cavity is arranged at the bottom of the tower body, a gas inlet is arranged above the washing liquid cavity, a washing liquid inlet is arranged above the gas inlet, a gas outlet is arranged at the top of the tower body, a liquid inlet end of the washing liquid inlet is connected with the washing liquid cavity, a liquid outlet end of the washing liquid inlet is positioned in the tower body, a spiral spray nozzle is arranged at the liquid outlet end of the washing liquid inlet, washing liquid is sprayed through the spiral spray nozzle to form liquid drops which are filled in the whole section of the tower body, a rain cap is arranged in the tower body at a position close to the gas outlet, the rain cap is positioned above the spiral spray nozzle, a gas channel is reserved between the rain cap and the tower body, and the gas channel is connected with the inner part of the tower body and the gas outlet. The invention can be well applied to washing gas with larger dust amount, the equipment structure is simpler, the components are fewer, the equipment is not easy to be blocked by only discharging concentrated liquid and replenishing clear liquid regularly, the operation failure rate is low, and the washing tower can continuously work.

Inventors

• YANG HUACHUN
• LI LINGYUN
• JIA MIAN
• WANG JUN
• YU YIFEI
• ZHAO YANAN
• YAN ZEHUI
• SHI YINGFEI
• XU CHENYANG

Assignees

• 河南省氟基新材料科技有限公司

Dates

Publication Date

20260505

Application Date

20260407

Claims (10)

1. 1. The gas dust removing device comprises a tower body, wherein a washing liquid cavity is arranged at the bottom of the tower body, a gas inlet is arranged above the washing liquid cavity, a washing liquid inlet is arranged above the gas inlet, and a gas outlet is arranged at the top of the tower body; the position in the tower body near the gas outlet is provided with a rain cap, the rain cap is positioned above the spiral spray head, a gas channel is reserved between the rain cap and the tower body, and the gas channel is connected with the inner part of the tower body and the gas outlet.
2. 2. The gas dust collector according to claim 1, wherein the rain cap has a conical structure, the upper end of the rain cap is a tip, the lower end of the rain cap is open, and the outer diameter of the lower end of the rain cap is smaller than the inner diameter of the tower body.
3. 3. The gas dust collector according to claim 2, wherein the rain cap is fixedly connected with the top of the tower body through a plurality of hanging rods.
4. 4. The gas dust collector according to claim 3, wherein the hanging rods are circumferentially spaced apart on the rain cap, and each hanging rod extends in an up-down direction.
5. 5. The gas dust collector according to claim 3, wherein a reinforcing rib is further arranged between the suspender and the top of the tower body.
6. 6. The gas dust collector according to any one of claims 1 to 5, wherein a washing circulating liquid outlet is arranged at the bottom of the washing liquid cavity and is connected with a liquid inlet end of the washing liquid inlet through a circulating pump.
7. 7. The gas dust collector according to claim 6, wherein the bottom of the washing liquid chamber is further provided with a concentrate discharge port, and the concentrate discharge port is positioned lower than the washing circulating liquid outlet.
8. 8. The gas dust collector according to claim 7, wherein the cleaning liquid chamber has an overflow port at an upper position.
9. 9. The gas dust collector according to claim 8, wherein a manhole is provided on a side surface of the washing liquid chamber.
10. 10. The gas dust collector according to claim 6, wherein the bottom of the tower body is provided with a liquid supplementing port at a position above the washing liquid cavity.

Description

Gas dust removing device Technical Field The invention relates to the technical field of washing gas, in particular to a gas dust removing device. Background In the production of fluorine industry, the dust removal of dust-containing gas is an important link, the gas dust removal is mainly carried out by virtue of a washing tower, the structure of the traditional washing tower is shown in figure 1, and the main components comprise an orifice A, an orifice B, a washing liquid inlet, an orifice C, an orifice D, an overflow orifice E, a concentrated liquid discharge orifice F, a washing circulating liquid outlet, an orifice G, an orifice M, a manhole and an orifice H, wherein the orifice A is a dust-containing gas inlet, the orifice B is a washing liquid inlet, the orifice C is a gas outlet containing trace dust, the orifice D is an overflow orifice, the orifice E is a concentrated liquid discharge orifice, the orifice F is a washing circulating liquid outlet, the orifice G is a liquid supplementing orifice, and the orifice M is a manhole. When the traditional washing tower is used for removing dust from gas with larger dust content, two problems exist: Firstly, the dust-containing gas enters the tower and fully contacts with liquid through the filler 13, the liquid is uniformly distributed and overflows downwards through the distributor 12, dust in the gas is washed away by the overflow liquid, part of the dust is dissolved in the liquid, part of the dust can be left in the filler, the filler is blocked by the dust when the equipment runs for no long, the gas cannot pass through, the production cannot be carried out, and the filler is cleaned by stopping the equipment. Secondly, the gas from the filler 13 of the demister 11 at the top of the tower is entrained with a small amount of dust and passes through the dust part of the wire mesh demister to be remained in the demister, and the demister is blocked after running for a period of time, so that the gas cannot be treated by stopping the demister, and the gas is stopped frequently, thereby seriously influencing the production, failing to achieve the production and having higher product cost. Therefore, structural optimization modification of the scrubber is highly necessary. Disclosure of Invention The invention aims to provide a gas dust removal device which at least solves one of the technical problems in the related art to a certain extent. In order to solve the technical problems, the invention adopts the following technical scheme: The gas dust removing device comprises a tower body, wherein a washing liquid cavity is arranged at the bottom of the tower body, a gas inlet is arranged above the washing liquid cavity, a washing liquid inlet is arranged above the gas inlet, and a gas outlet is arranged at the top of the tower body; the position in the tower body near the gas outlet is provided with a rain cap, the rain cap is positioned above the spiral spray head, a gas channel is reserved between the rain cap and the tower body, and the gas channel is connected with the inner part of the tower body and the gas outlet. Furthermore, the rain cap is of a conical structure, the upper end of the rain cap is a tip, the lower end of the rain cap is open, and the outer diameter of the lower end of the rain cap is smaller than the inner diameter of the tower body. Further, the rain cap is fixedly connected with the top of the tower body through a plurality of hanging rods. Further, the hanging rods are circumferentially arranged at intervals on the rain cap, and each hanging rod extends along the up-down direction. Further, a reinforcing rib is arranged between the suspender and the top of the tower body. Further, a washing circulating liquid outlet is arranged at the bottom of the washing liquid cavity and is connected with the liquid inlet end of the washing liquid inlet through a circulating pump. Further, a concentrated solution discharge port is further arranged at the bottom of the washing liquid cavity, and the position of the concentrated solution discharge port is lower than the washing circulating liquid outlet. Further, an overflow port is arranged at the upper position of the washing liquid cavity. Further, a manhole is arranged on the side face of the washing liquid cavity. Further, a liquid supplementing port is arranged at the bottom of the tower body above the washing liquid cavity. The invention has the beneficial effects that: the invention can be well applied to washing gas with larger dust amount, the structure of the equipment is simple, the parts are few, the equipment is not easy to be blocked by only discharging concentrated liquid and replenishing clear liquid at regular intervals, the condition that the gas cannot pass through can not occur, the operation failure rate is low, and the washing tower can continuously work without stopping for maintenance. The invention is provided with the spiral spray head at the liquid outlet end of the wa