CN216726593U

CN216726593U - Acid tail gas purification treatment device

Info

Publication number: CN216726593U
Application number: CN202123327298.1U
Authority: CN
Inventors: 李华; 董伟; 陈正伟; 付甲东
Original assignee: Shanghai Tianye Chemical Co ltd
Current assignee: Shanghai Tianye Chemical Co ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-06-14
Anticipated expiration: 2031-12-27

Abstract

The utility model discloses an acidic tail gas purification treatment device, which belongs to the technical field of fine chemical engineering and comprises a shell and a support frame, wherein the shell is fixedly arranged on the support frame, the shell is communicated with a first air inlet pipe, a second air inlet pipe, a liquid conveying pipe, a liquid outlet pipe and an exhaust pipe, a partition plate, an exhaust valve, a filter layer and a PH detector are arranged in the shell, the filter layer is positioned at the top end in the shell, a rotating motor is fixedly arranged in the partition plate, the output end of the rotating motor is fixedly connected with a rotating paddle, a waste liquid area is arranged below the partition plate, the waste liquid area is communicated with the liquid outlet pipe, and the output end of the second air inlet pipe extends into the waste liquid area.

Description

Acid tail gas purification treatment device

Technical Field

The utility model belongs to the technical field of fine chemical engineering, and particularly relates to an acidic tail gas purification treatment device.

Background

At present, most fine chemical enterprises generate a certain amount of acid gases in the process production process, for example, in reaction types involving bromine, thionyl chloride, phosphorus oxychloride and the like, tail gas often contains acid gases such as hydrogen bromide, hydrogen chloride, sulfur dioxide and the like and solid particles, and if the gases are directly discharged into the air, the gases can seriously pollute the environment and the air, form acid fog moisture diffusion, and cause serious pollution and harm to human health.

For the treatment of acidic tail gas, a spray deacidification method is generally adopted: alkaline solution is sprayed into the absorption tower, so that alkaline liquid and acidic tail gas are neutralized, but the temperature of the acidic tail gas is high, so that the tail gas rising rate is high, the acidic tail gas cannot be fully reacted with the alkaline liquid, the absorption effect and the utilization efficiency of the acidic tail gas by the neutralizing liquid are poor, the tail gas is not fully deacidified, and meanwhile, the part with the small particle size in the granular product generated after reaction can still be carried by the rising tail gas to rise and is finally discharged to the atmosphere.

SUMMERY OF THE UTILITY MODEL

The utility model provides an acid tail gas purification treatment device, aiming at the problem that the existing acid gas is directly discharged without being treated to cause air pollution.

In order to solve the problems, the utility model adopts the following technical scheme:

the acidic tail gas purification treatment device comprises a shell and a support frame, wherein the shell is fixedly arranged on the support frame, the shell is communicated with a second air inlet pipe, a liquid conveying pipe, a liquid outlet pipe and an exhaust pipe, a separation plate, an exhaust valve, a filter layer and a PH detector are arranged in the shell, the filter layer is positioned at the top end in the shell, the exhaust valve is positioned below the filter layer, the isolation plate is positioned at the bottom end in the shell, a rotating motor is fixedly arranged in the isolation plate, the output end of the rotating motor is fixedly connected with a rotating paddle, the rotating paddle comprises a rotating shaft and a plurality of paddles, the blades of the rotating blades are water-absorbing sponges, a waste liquid area is arranged below the isolation plate and communicated with the liquid outlet pipe, the output end of the second air inlet pipe extends into the waste liquid area, and the infusion pipe extends into the shell.

In order to increase the pressure inside the device and improve the reaction rate of the waste gas and the neutralization solution, preferably, the shell is communicated with a first air inlet pipe, an inflator pump is fixedly installed outside the shell, and the input end of the first air inlet pipe is communicated with the output end of the inflator pump.

In order to prevent the exhaust gas from being purified without filtration, the filter layer is preferably made of activated carbon fibers.

In order to reduce the temperature of the gas, a water cooling pipe is preferably tightly surrounded outside the second gas inlet pipe.

In order to increase the contact area of the neutralizing liquid and the waste gas and adsorb waste gas particles, an atomizing nozzle is installed at the output end of the liquid conveying pipe and is located right above the rotating paddle.

For better neutralization of the exhaust gas, the liquid conveyed in the infusion tube is preferably sodium hydroxide solution.

In order to prevent the waste liquid from leaking, preferably, the support frame is fixedly provided with a fixed support, the fixed support is provided with a waste liquid tank, and a filling opening of the waste liquid tank is positioned at the lower end of the outlet pipe.

Compared with the prior art, the utility model provides an acidic tail gas purification treatment device, which has the following beneficial effects:

the part which is not involved in the device is the same as the prior art or can be realized by the prior art, the utility model sprays the alkaline neutralizing liquid to the paddle, the paddle is the water-absorbing sponge, the motor drives the paddle, the acidic waste gas contacts with the alkaline neutralizing liquid to carry out the neutralization reaction, the sponge is utilized to increase the contact area and the contact time of the waste gas and the neutralizing liquid, the absorption effect on the acidic tail gas is improved, meanwhile, the waste gas enters the device from the waste liquid area, the waste liquid can filter the particle impurities in the waste gas, meanwhile, the residual alkaline substances which are not completely reacted exist in the waste liquid area, the utilization efficiency of the neutralizing liquid is improved, the neutralizing liquid sprayed by the atomizing nozzle can also absorb the particles which are not completely filtered, the filter layer finally filters and purifies the gas, the inflator pump fills the air into the device, the function of providing oxygen is realized, the pressurizing is realized, the purification treatment device can reduce the acidity of the waste gas, the discharged gas reaches the discharge standard, and the air pollution is reduced.

Drawings

Fig. 1 is a schematic external structural diagram of an acidic tail gas purification treatment device according to the present invention;

FIG. 2 is a schematic diagram of the internal structure of the acidic tail gas purification treatment device according to the present invention;

fig. 3 is a schematic view of a rotating blade of the acidic tail gas purification treatment device provided by the utility model.

In the figure: 1. a housing; 2. an inflator pump; 3. a first intake pipe; 4. a second intake pipe; 5. A transfusion tube; 6. a support frame; 7. a liquid outlet pipe; 8. a separator plate; 9. an exhaust valve; 10. an atomizing spray head; 11. rotating the motor; 12. a filter layer; 13. rotating the paddle; 14. a pH detector; 15. a waste liquid zone; 16. a waste liquid tank; 17. a water-cooled tube; 18. and (4) exhausting the gas.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example (b):

referring to fig. 1-3, the acidic tail gas purification treatment device comprises a housing 1 and a support frame 6, the housing 1 is fixedly arranged on the support frame 6, the housing 1 is communicated with a second air inlet pipe 4, a liquid conveying pipe 5, a liquid outlet pipe 7 and an exhaust pipe 18, a partition plate 8 is arranged in the housing 1, exhaust valve 9, filter layer 12 and PH detector 14, filter layer 12 is located the inside top of casing 1, exhaust valve 9 is located filter layer 12 below, division board 8 is located the inside bottom of casing 1, fixed mounting has rotation motor 11 in the

division board

8, 11 output end fixedly connected with of rotation motor rotates paddle 13, it includes axis of rotation and a plurality of paddle to rotate paddle 13, the paddle that rotates paddle 13 is the sponge that absorbs water, division board 8 below is waste liquid district 15, waste liquid district 15 and drain pipe 7 intercommunication, 4 output ends of second intake pipe stretch into in the waste liquid district 15, transfer line 5 stretches into in the casing 1.

The shell 1 is communicated with a first air inlet pipe 3, an inflator pump 2 is fixedly mounted outside the shell 1, the input end of the first air inlet pipe 3 is communicated with the output end of the inflator pump 2, the inflator pump 2 is utilized to inflate and pressurize the device, the reaction rate of waste gas and neutralization liquid is improved, and oxygen required by reaction is conveyed to the device.

The filter layer 12 is made of activated carbon fiber, and the activated carbon fiber can filter and purify acidic waste gas.

The water cooling pipe 17 is tightly surrounded outside the second air inlet pipe 4, the waste gas carries extremely high heat, the water cooling pipe 17 can reduce the heat of the acid gas, and the heated water can be used as other places to realize heat recovery.

Atomizer 10 is installed to 5 output ends of transfer line, and atomizer 10 is located and rotates paddle 13 directly over, and atomizer 10 can let neutralization solution atomizing, adsorbs waste liquid district 15 and does not filter complete particulate matter, and atomizing neutralization solution can increase the area of contact with waste gas simultaneously.

The liquid transported in the liquid transport tube 5 is a sodium hydroxide solution, which can be used as a good acidic neutralizing solution.

6 fixed mounting of support frame has a fixed bolster, installs waste liquid jar 16 on the fixed bolster, and 16 mouths of irritating of waste liquid jar are located the drain pipe 7 mouth of pipe under the lower extreme, and the waste liquid after the neutralization reaction needs through the storage, causes the pollution to soil and water otherwise easily.

The utility model is applied to the technical field of tail gas purification treatment, an exhaust valve 9 is closed, a rotating motor 11 is started, neutralizing liquid is conveyed by a liquid conveying pipe 5 and sprayed by an atomizing nozzle 10, a sponge blade absorbs the neutralizing liquid, the rest falls to a waste liquid area 15, acidic waste gas is input into the waste liquid area 15 through a second air inlet pipe 4, particle impurities in the waste gas are filtered by the waste liquid area 15, the waste gas floats upwards and contacts with the rotating sponge blade to perform a neutralization reaction, an air pump 2 supplies air through a first air inlet pipe 3 to pressurize the device, when a PH detector 14 detects the concentration of the waste gas in the device, when the acidity value of the waste gas is reduced, the exhaust valve 9 is opened, the treated waste gas is discharged from the exhaust valve 9 and passes through a filter layer 12 to perform final filtration and purification, and the waste liquid in the waste liquid area 15 is discharged into a waste liquid tank 16 through a liquid outlet pipe 7.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. Acid tail gas purification treatment device, including casing (1) and support frame (6), casing (1) fixed mounting be in on support frame (6), its characterized in that, casing (1) intercommunication has second intake pipe (4), transfer line (5), drain pipe (7) and blast pipe (18), casing (1) internally mounted has division board (8), air discharge valve (9), filter layer (12) and PH detector (14), filter layer (12) are located casing (1) inside top, air discharge valve (9) are located filter layer (12) below, division board (8) are located casing (1) inside bottom, division board (8) internal fixation installs rotation motor (11), rotation motor (11) output end fixedly connected with rotates paddle (13), it includes axis of rotation and a plurality of paddle to rotate paddle (13), the paddle that rotates paddle (13) is the sponge that absorbs water, division board (8) below is waste liquid district (15), waste liquid district (15) with drain pipe (7) intercommunication, second intake pipe (4) output stretches into in waste liquid district (15), transfer line (5) stretch into in casing (1).

2. The acid tail gas purification treatment device according to claim 1, wherein the housing (1) is communicated with a first air inlet pipe (3), an inflator pump (2) is fixedly mounted outside the housing (1), and an input end of the first air inlet pipe (3) is communicated with an output end of the inflator pump (2).

3. The acid tail gas purification treatment device according to claim 1, wherein the filter layer (12) is activated carbon fiber.

4. The acid tail gas purification treatment device according to claim 1, wherein a water cooling pipe (17) is tightly surrounded outside the second inlet pipe (4).

5. The acidic exhaust gas purification treatment device according to claim 1, wherein an atomizer (10) is installed at an output end of the infusion tube (5), and the atomizer (10) is located right above the rotating paddle (13).

6. The acidic exhaust gas purification treatment device according to claim 5, wherein the liquid transported in the liquid transport tube (5) is a sodium hydroxide solution.

7. The acidic exhaust gas purification treatment device according to claim 1, wherein the support frame (6) is fixedly provided with a fixed support, the fixed support is provided with a waste liquid tank (16), and a filling opening of the waste liquid tank (16) is located at the lower end of the outlet pipe (7).