CN223209268U - Phthalic anhydride tail gas washing device - Google Patents
Phthalic anhydride tail gas washing deviceInfo
- Publication number
- CN223209268U CN223209268U CN202422407005.8U CN202422407005U CN223209268U CN 223209268 U CN223209268 U CN 223209268U CN 202422407005 U CN202422407005 U CN 202422407005U CN 223209268 U CN223209268 U CN 223209268U
- Authority
- CN
- China
- Prior art keywords
- washing tower
- washing
- spray
- tail gas
- phthalic anhydride
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
本实用新型提供一种苯酐尾气洗涤装置，包括洗涤塔，洗涤塔的内部从下到上依次设置有储液层、过滤层、吸附层和喷淋层，洗涤塔的上部设置有除雾板，洗涤塔的外侧壁上设置有用于储存水洗液的储存罐，储存罐的外侧壁上设置有与其相连通的分流管，位于喷淋层外侧的洗涤塔的外侧壁上设置有与洗涤塔的侧壁相贯通的导气管道，导气管道的上部设置有多个与分流管相连通的喷淋管，多个喷淋管的上部设置有与分流管相连通的导流管，本实用新型可以通过洗涤塔中的喷淋管喷出的洗涤液实现对废气中的有害气体进行洗涤吸收清理的同时，通过除雾板实现对气流中的液滴进行去除，大大提高了废气的洗涤效率，避免二次污染。
The utility model provides a phthalic anhydride tail gas washing device, comprising a washing tower, wherein a liquid storage layer, a filter layer, an adsorption layer and a spray layer are sequentially arranged inside the washing tower from bottom to top, a demister plate is arranged on the upper part of the washing tower, a storage tank for storing water washing liquid is arranged on the outer side wall of the washing tower, a diversion pipe connected with the storage tank is arranged on the outer side wall of the storage tank, an air guide pipe connected with the side wall of the washing tower is arranged on the outer side wall of the washing tower outside the spray layer, a plurality of spray pipes connected with the diversion pipe are arranged on the upper part of the air guide pipe, and a guide pipe connected with the diversion pipe is arranged on the upper part of the plurality of spray pipes. The utility model can wash, absorb and clean harmful gases in the exhaust gas through the washing liquid sprayed from the spray pipe in the washing tower, and remove droplets in the air flow through the demister plate, thereby greatly improving the washing efficiency of the exhaust gas and avoiding secondary pollution.
Description
Technical Field
The utility model relates to the technical field of tail gas washing equipment, in particular to a phthalic anhydride tail gas washing device.
Background
At present, a treatment mode of phthalic anhydride tail gas mainly adopts a heat storage oxidation system or a catalytic oxidation system to oxidize organic matters in the phthalic anhydride tail gas, adopts a boiler to recover waste heat in the phthalic anhydride tail gas, adopts a wet desulfurization mode to remove SO2, adopts a wet electrostatic dust removal system to remove dust, and adopts a white feather removal system to remove white feather of the tail gas after electrostatic dust removal. Wherein, after the phthalic anhydride tail gas is subjected to oxidation removal and waste heat recovery, the flue gas contains SO2, SO3, HF, HCl and non-methane total hydrocarbon.
The traditional washing tower has low efficiency in the process of cleaning harmful gases in the waste gas, and secondary pollution of the waste gas is easily caused by insufficient washing.
Disclosure of utility model
In view of the above, the utility model provides a phthalic anhydride tail gas washing device, which can realize efficient, rapid and complete cleaning operation for the harmful gas in the waste gas by the cooperation of a washing tower and a demisting plate, and solves the problems that the traditional washing tower has low efficiency in the process of cleaning the harmful gas in the waste gas, and the waste gas is easy to generate secondary pollution due to insufficient washing.
In order to solve the technical problems, the utility model provides a phthalic anhydride tail gas washing device, which comprises a washing tower, wherein a liquid storage layer, a filter layer, an adsorption layer and a spray layer are sequentially arranged in the washing tower from bottom to top, a demisting plate is arranged at the upper part of the washing tower, a storage tank for storing water washing liquid is arranged on the outer side wall of the washing tower, a shunt pipe communicated with the outer side wall of the storage tank, an air guide pipeline communicated with the side wall of the washing tower is arranged on the outer side wall of the spray layer, a plurality of spray pipes communicated with the shunt pipes are arranged at the upper part of the air guide pipeline, and a guide pipe communicated with the shunt pipes is arranged at the upper part of the spray pipes.
The air inlet end of the air guide pipeline is communicated with the discharge end of the discharge source, the shunt pipe is provided with a plurality of first switch valves, and the spray pipe is provided with a second switch valve.
The upper part of the storage tank is provided with a sealing cover, the sealing cover is provided with a handle, the utility model can realize the effective sealing of the storage tank through the sealing cover, the cleaning solution in the storage tank is prevented from being polluted, and the sealing cover is convenient to be extracted, opened and installed by an operator through the handle, so that the operation is more convenient.
The pressure regulating valve is arranged on the flow guide pipe, the pressure of the washing liquid sprayed out of the spray pipe can be controlled through the pressure regulating valve, the spray pressure of the spray pipe can be conveniently and rapidly regulated according to the speed of the introduced waste gas, and the operation is more convenient.
The side wall of the washing tower is provided with a plurality of transparent observation windows, and the utility model can check the condition of cleaning waste gas in the washing tower in real time through the transparent observation windows, so that the operation is more convenient.
The bottom of the washing tower is uniformly provided with the plurality of supporting legs, the firm support and fixation of the washing tower can be realized through the supporting legs, and the stability of the washing tower is greatly improved.
In summary, compared with the prior art, the application has at least one of the following beneficial technical effects:
1. According to the utility model, the harmful gas in the waste gas can be washed, absorbed and cleaned through the washing liquid sprayed out of the spray pipe in the washing tower, and meanwhile, the liquid drops in the air flow are removed through the demisting plate, so that the secondary pollution is avoided, and the problems that the efficiency is low and the waste gas is easy to generate secondary pollution due to insufficient washing in the process of cleaning the harmful gas in the waste gas in the traditional washing tower are solved.
2. According to the utility model, the circulation and closing of the washing liquid flowing into the shunt pipe can be controlled through the first switch valve, and the opening and closing of the spray pipe can be controlled through the second switch control valve, so that the operation is more convenient.
3. According to the utility model, the storage tank can be effectively sealed through the sealing cover, so that the pollution of the washing liquid in the storage tank is avoided, and the sealing cover is conveniently extracted, opened and installed by an operator through the handle, so that the operation is more convenient.
4. According to the utility model, the storage tank can be effectively sealed through the sealing cover, so that the pollution of the washing liquid in the storage tank is avoided, and the sealing cover is conveniently extracted, opened and installed by an operator through the handle, so that the operation is more convenient.
Drawings
FIG. 1 is a schematic diagram of a phthalic anhydride tail gas washing device according to the present utility model;
FIG. 2 is a top view of the phthalic anhydride tail gas scrubbing apparatus of the present utility model;
FIG. 3 is a cross-sectional view taken at A-A in FIG. 2 in accordance with the present utility model.
The reference numerals indicate 100, a washing tower, 101, a liquid storage layer, 102, a filter layer, 103, an adsorption layer, 104, a spray layer, 105, a demisting plate, 106, a transparent observation window, 107, a supporting leg, 200, a storage tank, 300, a shunt pipe, 400, an air guide pipeline, 500, a spray pipe, 600, a guide pipe, 700, a first switch valve, 800, a second switch valve, 900 and a sealing cover.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to fig. 1 to 3 of the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which are obtained by a person skilled in the art based on the described embodiments of the utility model, fall within the scope of protection of the utility model.
As shown in fig. 1-3: the embodiment provides a phthalic anhydride tail gas washing device, which comprises a washing tower 100, wherein a liquid storage layer 101, a filter layer 102, an adsorption layer 103 and a spray layer 104 are sequentially arranged in the washing tower 100 from bottom to top, the adsorption layer 103 is an activated carbon layer, the filter layer 102 is a honeycomb activated carbon filter cotton plate, the liquid storage layer 101 is alkaline or acidic solution, a demister plate 105 is arranged at the upper part of the washing tower 100, the demister plate 105 is a silk screen demister or a fiber demister, a storage tank 200 for storing water washing liquid is arranged on the outer side wall of the washing tower 100, when the acidic solution is stored in the storage tank 200, the liquid storage layer 101 is alkaline solution, otherwise, when the alkaline solution is stored in the storage tank 200, the liquid storage layer 101 is acidic solution, a shunt tube 300 communicated with the liquid storage tank 200 is arranged on the outer side wall of the storage tank 200, the outer side wall of the washing tower 100 positioned outside the spray layer 104 is provided with the air guide pipeline 400 communicated with the side wall of the washing tower 100, the upper part of the air guide pipeline 400 is provided with a plurality of spray pipes 500 communicated with the shunt pipes 300, the side of the spray pipes 500 positioned in the air guide pipeline 400 is provided with the spray shower head, and the upper parts of the spray pipes 500 are provided with the guide pipes 600 communicated with the shunt pipes 300.
According to an embodiment of the present utility model, as shown in fig. 1 to 3, an air inlet end of an air duct 400 is communicated with an exhaust end of an exhaust source, a plurality of first switch valves 700 are arranged on a shunt tube 300, a second switch valve 800 is arranged on a spray tube 500, and the first switch valve 700 and the second switch valve 800 are both manual switch water valves, so that the present utility model can control the circulation and closing of the washing liquid flowing into the shunt tube 300 through the first switch valve 700, and the opening and closing of the spray tube 500 are controlled through the second switch control valve, so that the operation is more convenient.
The upper part of the storage tank 200 is provided with the sealing cover 900, and the sealing cover 900 is provided with the handle, so that the storage tank 200 can be effectively sealed through the sealing cover 900, the washing liquid in the storage tank 200 is prevented from being polluted, and an operator can conveniently extract, open and install the sealing cover 900 through the handle, so that the operation is more convenient.
According to another embodiment of the present utility model, as shown in fig. 1 and 2, the flow guide pipe 600 is provided with a pressure regulating valve, and the pressure regulating valve is used to control the pressure of the washing liquid sprayed from the spray pipe 500, so that the spray pressure of the spray pipe 500 can be conveniently and rapidly regulated according to the speed of the exhaust gas.
According to another embodiment of the present utility model, as shown in fig. 1 and 3, a plurality of transparent observation windows 106 are formed on the side wall of the washing tower 100, and the transparent observation windows 106 should be made of transparent toughened glass.
The bottom of the washing tower 100 is uniformly provided with the plurality of supporting legs 107, and the utility model can realize firm support and fixation of the washing tower 100 through the supporting legs 107, thereby greatly increasing the stability of the washing tower 100.
The application method of the utility model comprises the following steps:
Firstly, it should be clear that the washing device related to the present utility model is mainly used for gas washing operation, the present utility model uses the washing of phthalic anhydride tail gas as an example to explain its usage in detail, when the phthalic anhydride tail gas needs to be washed operation, firstly, the discharge end of the discharge source is communicated with the air inlet end box of the air duct 400, then the first switch control valve on the shunt tube 300 is opened, the water pump is opened, the second switch control valve on the spray tube 500 is opened, the pressure of the pressure control valve is adjusted to be suitable, in this process, the high-pressure waste gas entering through the air inlet end of the air duct 400 can be reacted by the washing liquid sprayed out of the spray tube 500, the harmful substances are converted into water soluble salts or liquid forms after being absorbed into the washing tower 100, the liquid harmful substances passing through the inside of the washing tower 100 can pass through the adsorption layer 103, the filter layer 102 and the liquid storage layer 101 in turn downwards under the action of self gravity, the water soluble substances can remain in the end of the filtration, other safe waste gas can pass through the second adsorption of the liquid storage layer 101 and then be discharged to the upper discharge plate 105 after passing through the second adsorption of the liquid storage layer 101, the second demisting, the waste gas can be completely removed through the second demisting plate 105, and the secondary pollution can be avoided in the present utility model, the utility model can be completely removed by the liquid droplets in the washing tower 100, and the waste gas can be completely removed by the liquid mist can be removed by the liquid in the washing tower 100, the utility model, and the utility model can be completely removed by the liquid waste gas is completely by the liquid has been removed by the liquid in the washing tower, and the utility model has been removed by the liquid has been completely removed by the liquid has been removed by the waste gas has been removed.
In addition, it should be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, or in communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.
While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422407005.8U CN223209268U (en) | 2024-09-30 | 2024-09-30 | Phthalic anhydride tail gas washing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422407005.8U CN223209268U (en) | 2024-09-30 | 2024-09-30 | Phthalic anhydride tail gas washing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223209268U true CN223209268U (en) | 2025-08-12 |
Family
ID=96655238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422407005.8U Active CN223209268U (en) | 2024-09-30 | 2024-09-30 | Phthalic anhydride tail gas washing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223209268U (en) |
-
2024
- 2024-09-30 CN CN202422407005.8U patent/CN223209268U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A phthalic anhydride exhaust gas washing device Granted publication date: 20250812 Pledgee: Kaifeng branch of Zhongyuan Bank Co.,Ltd. Pledgor: Kaifeng Ruihong Chemical Co.,Ltd. Registration number: Y2025980054170 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |