Negative pressure type printing and dyeing waste gas treatment device

Abstract

The utility model belongs to the technical field of printing and dyeing waste gas after-treatment equipment, and particularly relates to a negative pressure type printing and dyeing waste gas treatment device. A negative pressure type printing and dyeing waste gas treatment device comprises a barrel, a spraying partition barrel and a filtering partition barrel are sequentially arranged in the barrel from inside to outside, a spraying chamber is arranged on the inner side of the spraying partition barrel, a filtering chamber is arranged between the spraying partition barrel and the filtering partition barrel, and a negative pressure chamber is arranged between the filtering partition barrel and the barrel; a plurality of partition plates are arranged between the barrel body and the spraying partition plate, the partition plates are distributed in an annular array, the filter chamber is divided into a plurality of filter spaces by the partition plates, and the negative pressure chamber is divided into a plurality of negative pressure spaces by the partition plates; a printing and dyeing waste gas inlet is formed in the bottom of the spraying chamber, a pressure release valve and a spraying pipe are arranged at the top of the spraying chamber, a plurality of negative pressure pipes are connected to the outer wall of the barrel, and the plurality of negative pressure pipes are communicated with the plurality of negative pressure chambers in a one-to-one correspondence manner; and filter materials are arranged in the plurality of filter spaces.

Description

Technical Field

[0001] The utility model belongs to the technical field of printing and dyeing waste gas post-processing equipment, and specifically relates to a negative pressure printing and dyeing waste gas processing device. Background Art

[0002] The treatment of printing and dyeing waste gas is an important issue that needs to be considered in the production and development of the dyeing and finishing industry. At present, unlike the direct combustion method of high-concentration waste gas, the industry often uses physical methods such as water washing and adsorption to treat low-concentration printing and dyeing waste gas. These physical methods produce less secondary pollution and are more controllable for subsequent treatment processes.

[0003] When washing and adsorbing low-concentration printing and dyeing waste gas, the equipment used is mostly assembly line type with water washing at the front and adsorption at the back. This type of treatment device has the following disadvantages: First, the waste gas heat energy is not fully utilized. The filter material used for adsorption usually requires a certain temperature to ensure sufficient adsorption activity. The assembly line equipment usually has a higher temperature for the front filter material and a lower temperature for the rear filter material, resulting in a large difference in the adsorption efficiency of the front and rear filter materials. Second, the loss of the front and rear filter materials is not uniform, and it is difficult to estimate the loss of the filter material more accurately, and it is difficult to make full use of the filter material when replacing the filter material.

[0004] In order to solve the above problems, the utility model hopes to provide a negative pressure printing and dyeing waste gas treatment device. Utility Model Content

[0005] The purpose of the utility model is to provide a negative pressure printing and dyeing waste gas treatment device to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A negative pressure printing and dyeing waste gas treatment device comprises a cylinder, wherein a spray partition cylinder and a filter partition cylinder are sequentially arranged inside the cylinder from the inside to the outside, the inner side of the spray partition cylinder is a spray chamber, the space between the spray partition cylinder and the filter partition cylinder is a filter chamber, and the space between the filter partition cylinder and the cylinder is a negative pressure chamber; a plurality of partitions are arranged between the cylinder and the spray partition, and the plurality of partitions are distributed in a circular array, and the plurality of partitions divide the filter chamber into a plurality of filter spaces, and the plurality of partitions divide the negative pressure chamber into a plurality of negative pressure spaces; a printing and dyeing waste gas inlet is arranged at the bottom of the spray chamber, a pressure relief valve and a spray pipe are arranged at the top of the spray chamber, and a plurality of negative pressure pipes are connected to the outer wall of the cylinder, and the plurality of negative pressure pipes are connected to a plurality of negative pressure chambers one-to-one; filter materials are arranged in a plurality of the filter spaces.

[0008] Preferably, a spray inner core is provided in the spray chamber, the spray inner core is in the shape of a hollow cylinder, and the side wall of the spray inner core is a small-pore filter.

[0009] Preferably, filter material openings are provided on both the inner side and the outer side of the filter space.

[0010] Preferably, the spray pipe is located inside the spray core.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] (1) The utility model provides a negative pressure printing and dyeing waste gas treatment device, in which the filter material adopts a ring array distribution filter material, which can make the filter material work evenly. After working for the same time, the use loss rate of each filter material is similar. When replacing, multiple filter materials can be replaced at the same time, which makes it easier to judge the effectiveness of the filter material; and the temperature in the spray chamber can be transmitted to the filter material more evenly, so that the working efficiency of the filter material is more consistent;

[0013] (2) The utility model provides a negative pressure printing and dyeing waste gas treatment device, in which the temperature in the spray chamber is relatively high, a spray inner core is provided in the spray chamber, and waste gas water washing is performed inside the spray inner core, which can effectively reduce the spray water directly spraying on the filter material and extend the use efficiency of the filter material;

[0014] (3) The utility model provides a negative pressure printing and dyeing waste gas treatment device, which is provided with a negative pressure space outside the filter space. The existence of the negative pressure space can prevent the negative pressure pipe from directly contacting the filter material, so that the printing and dyeing waste gas can be filtered more evenly in the filter material. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a top cross-sectional view of the utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the spraying partition and the filtering partition of the utility model;

[0018] In the figure: 1. Cylinder; 2. Spray diaphragm; 3. Filter diaphragm; 4. Spray chamber; 5. Filter chamber; 6. Negative pressure chamber; 7. Filter material; 8. Partition; 9. Filter material opening; 10. Negative pressure pipe; 11. Printing and dyeing waste gas inlet; 12. Pressure relief valve; 13. Spray pipe; 14. Spray inner core. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] A negative pressure type printing and dyeing waste gas treatment device comprises a cylinder 1, and a spray partition 2 and a filter partition 3 are arranged in sequence from the inside to the outside of the cylinder 1. The inner side of the spray partition 2 is a spray chamber 4, and the first step of water washing is performed on the printing and dyeing waste gas in the spray chamber 4; between the spray partition 2 and the filter partition 3 is a filter chamber 5, and the filter chamber 5 is used for filtering and adsorbing the waste gas after water washing; a negative pressure chamber 6 is arranged between the filter partition 3 and the cylinder 1, and a negative pressure environment is arranged in the negative pressure chamber 6. The existence of the negative pressure environment can make the waste gas more evenly distributed when passing through the filter material 7. For the working efficiency of the filter chamber 5 and the negative pressure chamber 6, six partitions 8 are arranged between the cylinders 1 and the spray partition 2, and the six partitions 8 are evenly distributed in a circular array. The six partitions 8 divide the filter chamber 5 into six filter spaces, and divide the negative pressure chamber 6 into six negative pressure spaces. Filter material openings 9 are provided on the inner and outer sides of the filter space, and filter material 7 is provided in the filter space. The design of the filter material openings 9 enables the printing and dyeing waste gas to directly contact the filter material 7. Six negative pressure pipes 10 are connected to the outer wall of the cylinder 1. The six negative pressure pipes 10 are connected to the six negative pressure spaces in a one-to-one correspondence. A printing and dyeing waste gas inlet 11 is provided at the bottom of the spray chamber 4, and the printing and dyeing waste gas is introduced into the spray chamber 4 from the printing and dyeing waste gas inlet 11; a pressure relief valve 12 and a spray pipe 13 are provided at the top of the spray chamber 4. The pressure relief valve 12 is used to relieve pressure in the cylinder 1, and the spray pipe 13 sprays spray water into the spray chamber 4. A spray core 14 is provided in the spray chamber 4, and the spray core 14 is in a hollow cylindrical shape; the spray water is sprayed toward the inner side of the spray core 14, and the side wall of the spray core 14 is a small-pore filter. The existence of the spray core 14 can effectively prevent the spray water from being directly sprayed toward the filter material 7, and the existence of the spray core 14 can effectively enhance the service life of the filter material 7.

[0021] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A negative pressure printing and dyeing waste gas treatment device, characterized in that: It comprises a cylinder, wherein a spray partition and a filter partition are sequentially arranged inside the cylinder from the inside to the outside, the inner side of the spray partition is a spray chamber, the space between the spray partition and the filter partition is a filter chamber, and the space between the filter partition and the cylinder is a negative pressure chamber; a plurality of partitions are arranged between the cylinder and the spray partition, and the plurality of partitions are distributed in a circular array, the plurality of partitions divide the filter chamber into a plurality of filter spaces, and the plurality of partitions divide the negative pressure chamber into a plurality of negative pressure spaces; a printing and dyeing waste gas inlet is arranged at the bottom of the spray chamber, a pressure relief valve and a spray pipe are arranged at the top of the spray chamber, a plurality of negative pressure pipes are connected to the outer wall of the cylinder, and the plurality of negative pressure pipes are connected to a plurality of negative pressure chambers one by one; filter materials are arranged in a plurality of the filter spaces.

2. A negative pressure printing and dyeing waste gas treatment device according to claim 1, characterized in that: The spray chamber is provided with a spray inner core, which is in a hollow cylindrical shape, and the side wall of the spray inner core is a small-pore filter.

3. The negative pressure printing and dyeing waste gas treatment device according to claim 1 is characterized in that: The inner side and the outer side of the filter space are both provided with filter material openings.

4. A negative pressure printing and dyeing waste gas treatment device according to claim 2, characterized in that: The spray pipe is located on the inner side of the spray inner core.

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