Centralized waste gas treatment device for polyethylene pipe production

Abstract

According to the technical scheme, the centralized waste gas treatment device for polyethylene pipe production comprises a box body, a filtering assembly and a pipeline assembly, a gas inlet is formed in one side of the box body, and a gas outlet is formed in the other side of the box body; the filtering assembly is detachably arranged in the box body and is used for filtering waste gas; the pipeline assembly comprises a collecting cylinder, an end cover and a branch pipeline, the collecting cylinder is detachably arranged on the air inlet, and the end cover is detachably arranged on the collecting cylinder. According to the utility model, through assembling and matching of the collecting cylinder, the end cover and the branch pipelines, waste gas of a plurality of polyethylene pipe extruders in a plant can be guided to the collecting cylinder through the branch pipelines to be collected, enters the box body from the gas inlet, is filtered by the filter assembly and then is discharged from the gas outlet; and the number of the branch pipelines can be correspondingly increased or decreased according to the number of the polyethylene pipe extruders for adaptation, so that centralized waste gas treatment can be conveniently carried out on a plurality of extrusion molding machines in a workshop.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to a centralized waste gas treatment device for polyethylene pipe production. Background Art

[0002] During the production process of polyethylene pipes, waste gas is generated at the extrusion molding end of the pipe. The waste gas is harmful and needs to be specially treated by a waste gas treatment device to avoid direct discharge into the workshop or outdoors. For example, Chinese patent 202322616417.8 discloses a tail gas treatment device for polyethylene production, including a waste gas treatment box, an easy-to-change mechanism and a powder filtering mechanism, which filters the waste gas through activated carbon.

[0003] For the above-mentioned prior art, in the actual production of polyethylene pipes, there are usually multiple pipe extrusion molding machines in the factory. If one pipe extrusion molding machine is equipped with one exhaust gas treatment device, it is not only costly and occupies a large space, but also requires maintenance of each exhaust gas treatment device one by one, which is cumbersome to operate. In addition, the use of the filter elements in each exhaust gas treatment device is different, and the replacement time is not synchronized, which is not conducive to maintenance and increases the burden of maintenance work. Therefore, how to facilitate centralized exhaust gas treatment of multiple extrusion molding machines in the workshop is a technical problem that needs to be solved. Utility Model Content

[0004] In view of this, it is necessary to provide a centralized exhaust gas treatment device for polyethylene pipe production to solve the technical problem in the prior art of how to conveniently perform centralized exhaust gas treatment on multiple extrusion molding machines in a workshop.

[0005] In order to achieve the above technical purpose, the technical solution of the utility model provides a centralized waste gas treatment device for polyethylene pipe production, comprising:

[0006] A box body, one side of which is provided with an air inlet, and the other side of which is provided with an air outlet;

[0007] A filter assembly, which is detachably disposed in the housing and is used for exhaust gas filtering; and

[0008] The pipeline assembly includes a collecting tube, an end cover and a branch pipeline. The collecting tube is detachably arranged on the air inlet, and the end cover is detachably arranged on the collecting tube. A plurality of insertion holes are circumferentially distributed on the outer side of the collecting tube. One end of a plurality of branch pipelines is detachably arranged in the corresponding insertion hole, and the other end is used to be connected to the exhaust gas discharge end of the extruded pipe.

[0009] Furthermore, a plurality of baffles are arranged on the inner side of the box body from left to right, forming a plurality of filter chambers in the box body, and the baffles are staggered and distributed up and down in sequence to form a serpentine flow channel that passes through each filter chamber in sequence.

[0010] Furthermore, a plurality of sockets are provided on the front side of the box body, and a plurality of the filter components are inserted into the sockets one by one and are disposed inside each of the filter chambers.

[0011] Furthermore, the filter assembly includes a housing box and a filter element, the top of the housing box has an opening, the bottom of the housing box has a grid, the filter element is inserted into the inner side of the housing box, and the housing box is inserted into the inner side of the corresponding socket.

[0012] Furthermore, the filter element is honeycomb activated carbon, activated carbon rod or high-efficiency filter net.

[0013] Furthermore, a fan is provided on the air outlet.

[0014] Furthermore, there are multiple collecting tubes, and the multiple collecting tubes are threadedly connected in sequence head to tail. The collecting tube at one end is threadedly connected to the end cover, and the collecting tube at the other end is threadedly connected to the air inlet.

[0015] Furthermore, the pipeline assembly also includes a sealing cover, and a plurality of the sealing covers are detachably arranged in the corresponding insertion holes.

[0016] Furthermore, the sealing cover and the end of the branch pipeline are both provided with sealing sleeves, and are plugged into the corresponding insertion holes.

[0017] Furthermore, a handle is provided on the front of the accommodating box.

[0018] Compared with the prior art, the utility model has the following beneficial effects: through the assembly and coordination of the collecting tube, the end cover and the branch pipe, the exhaust gas of multiple polyethylene pipe extruders in the factory can be guided to the collecting tube through the branch pipe, and enter the box from the air inlet, and is filtered by the filter component and then discharged from the air outlet. The number of branch pipes can be increased or decreased according to the number of polyethylene pipe extruders, which is convenient for centralized exhaust gas treatment of multiple extrusion molding machines in the workshop and easy for maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural diagram of a centralized waste gas treatment device for polyethylene pipe production according to an embodiment of the utility model;

[0020] Figure 2 It is a three-dimensional exploded view of a centralized waste gas treatment device for polyethylene pipe production according to an embodiment of the utility model;

[0021] Figure 3 It is a partial front cross-sectional view of a centralized waste gas treatment device for polyethylene pipe production according to an embodiment of the utility model;

[0022] Figure 4 It is a three-dimensional diagram of a plurality of stacked collecting tubes of a centralized waste gas treatment device for polyethylene pipe production according to an embodiment of the utility model;

[0023] Figure 5 It is a schematic diagram of the extraction of the containing box of the centralized waste gas treatment device for polyethylene pipe production according to the embodiment of the utility model;

[0024] In the figure: 1, box body; 11, air inlet; 12, air outlet; 101, baffle; 102, filter chamber; 103, socket; 104, fan;

[0025] 2. filter assembly; 21. receiving box; 22. filter element; 2101. opening; 2102. grid;

[0026] 3. Pipeline assembly; 31. Collecting tube; 32. End cover; 33. Branch pipeline; 34. Sealing cover; 301. Insertion hole. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0028] like Figure 1-5As shown in the figure, the utility model provides a centralized waste gas treatment device for polyethylene pipe production, which includes a box body 1, a filtering component 2 and a pipeline component 3. An air inlet 11 is arranged on one side of the box body 1, and an air outlet 12 is arranged on the other side of the box body 1. Waste gas enters from the air inlet 11, flows through the box body 1, and is discharged from the air outlet 12. The filtering component 2 is detachably arranged in the box body 1 for filtering waste gas. When the waste gas flows through the box body 1, it is filtered by the filtering component 2. The pipeline component 3 includes a collecting cylinder 31, an end cover 32 and a branch pipeline 33. The collecting cylinder 31 is detachably arranged on the air inlet 11, the end cover 32 is detachably arranged on the collecting cylinder 31, and a plurality of insertion holes 301 are arranged on the outer side of the collecting cylinder 31 in a circumferential distribution. One ends of the plurality of branch pipelines 33 are detachably arranged in the corresponding insertion holes 301, and the other ends are used for connecting to the waste gas discharge end of the pipe extrusion molding. The waste gas is guided to the collecting cylinder 31 through the branch pipelines 33 and finally enters the box body 1 from the air inlet 11 and is filtered by the filtering component 2. The waste gas generated by multiple pipe extrusion molding machines can be centrally treated, which is convenient for centralized waste gas treatment of multiple pipe extrusion molding machines in the workshop.

[0029] It can be understood that the connection end part of the branch pipeline 33 and the collecting cylinder 31 can be a corrugated hose, which can be bent to adjust the orientation of the pipeline and is convenient for being installed on the factory building wall or ceiling. Other rigid pipes can also be used for the branch pipeline 33, and only a bending part needs to be arranged at the connection end with the collecting cylinder 31 to achieve the above purpose.

[0030] In this embodiment, in order to perform air suction, the waste gas generated by each pipe extrusion molding machine is sucked into the box body 1. A fan 104 is arranged on the air outlet 12. Through the fan 104 for suction, the waste gas is promoted to flow towards the box body 1.

[0031] In this embodiment, in order to expand the number of connectable branch pipelines 33 when the number of pipe extrusion molding machines increases, the number of the collecting cylinders 31 is multiple. The multiple collecting cylinders 31 are connected in series in a threaded manner end to end. One end of the collecting cylinder 31 is threadedly connected to the end cover 32, and the other end of the collecting cylinder 31 is threadedly connected to the air inlet 11. By removing the end cover 32, one or more cylinders identical to the first collecting cylinder 31 can be added and connected in series in a threaded manner, and finally the end is blocked with the end cover 32. A plurality of insertion holes 301 can be expanded on the multiple collecting cylinders 31, so as to achieve the purpose of expanding the number of connectable branch pipelines 33.

[0032] Furthermore, in order to make it necessary to seal the insertion holes 301 when the insertion holes 301 do not match the branch pipes 33, the insertion holes 301 are more than the number of branch pipes 33 that need to be inserted. Specifically, the pipeline assembly 3 also includes a sealing cover 34, and several sealing covers 34 are detachably arranged in the corresponding insertion holes 301. The branch pipes 33 are inserted into the corresponding number of insertion holes 301 according to their number, and the remaining insertion holes 301 that are not connected to the branch pipes 33 are sealed by the sealing covers 34.

[0033] Furthermore, in order to facilitate the installation and disassembly of the sealing cover 34 and the branch pipe 33, the ends of the sealing cover 34 and the branch pipe 33 are provided with sealing sleeves, and are plugged into the corresponding insertion hole 301, wherein the sealing sleeve is an elastic silicone sleeve or a rubber sleeve, which provides elastic extrusion during insertion, so that the sealing cover 34 or the branch pipe 33 is tightly inserted into the insertion hole and is easy to disassemble.

[0034] It is understandable that the sealing cover and the branch pipe and the insertion hole can also be installed by connecting with flanges and bolts to achieve the purpose of detachability, and this is not the only limitation here.

[0035] In one embodiment, see Figure 3 In order to extend the holding time and process layers of the exhaust gas, a number of baffles 101 are arranged on the inner side of the box body 1 from left to right, forming a plurality of filter chambers 102 in the box body 1, and the baffles 101 are arranged alternately up and down in sequence to form a serpentine flow channel that passes through each filter chamber 102 in sequence. Through the arrangement of the baffles 101, the flow path of the exhaust gas is extended, and it will pass through the filter components 2 in each filter chamber 102 in sequence, forming multi-stage filtration, thereby improving the quality of exhaust gas filtration treatment, so that it can fully meet the emission treatment requirements.

[0036] Furthermore, in order to facilitate the inspection, maintenance and replacement of the filter assembly 2, a plurality of sockets 103 are opened on the front of the box body 1, and the sockets 103 are arranged in a horizontal and vertical array. Each vertical column corresponds to a chamber, and a plurality of the filter assemblies 2 are inserted into the sockets 103 one by one and are placed inside each of the filter chambers 102. The filter assembly 2 can be removed by pulling and can be installed by pushing and inserting.

[0037] Furthermore, in order to allow the flow channel to pass through, the filter assembly 2 includes a receiving box 21 and a filter element 22. The top of the receiving box 21 has an opening 2101, and the bottom of the receiving box 21 has a grid 2102, so that the exhaust gas can flow up and down. The filter element 22 is inserted on the inner side of the receiving box 21, and the receiving box 21 is inserted on the inner side of the corresponding socket 103. When the exhaust gas flows up and down through the receiving box 21, it needs to pass through the filter element 22 therein, so as to achieve the purpose of filtering treatment.

[0038] In order to facilitate pulling out the accommodating box 21 , a handle is provided on the front of the accommodating box 21 .

[0039] Preferably, the filter element 22 is honeycomb activated carbon, activated carbon rod or high-efficiency filter mesh. The filter element 22 can be one or more of honeycomb activated carbon, activated carbon rod or high-efficiency filter mesh. The filter material can be adjusted according to actual conditions. Multiple or one can be stacked up and down in a containing box 21.

[0040] It can be understood that different filter elements 22 can be placed in the containing boxes 21 in different filter chambers 102, and used in combination according to the order of flow passage. For example, a high-efficiency filter mesh is placed in the containing box 21 at the front part of the flow passage, and honeycomb activated carbon is placed in the containing box 21 at the rear part of the flow passage. The dust particles are first filtered through the high-efficiency filter mesh, and then the exhaust gas is filtered and adsorbed by the honeycomb activated carbon, so as to achieve the effect of combined filtration.

[0041] The specific working process of the utility model is as follows: each branch pipe 33 is respectively connected to the exhaust gas discharge end of the pipe extrusion molding, and under the suction of the fan 104, the exhaust gas is guided to flow through the branch pipe 33 to the collecting tube 31, and the exhaust gas generated by multiple pipe extruders is collected in the collecting tube 31, and all pass through the collecting tube 31, enter the box body 1 from the air inlet 11, and flow along the flow channel separated by the baffle 101. The filter components 2 in each filter chamber 102 are filtered by the filter element 22 in the accommodating box 21, and finally discharged from the air outlet 12; when the filter element 22 needs to be inspected, maintained or replaced, the accommodating box 21 is directly pulled out at the box body 1, and the operation can be performed by pulling out the socket 103, which is convenient for inspection, maintenance or replacement.

[0042] The entire workflow is completed, and the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0043] The above is only a preferred specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A centralized waste gas treatment device for polyethylene pipe production, characterized in that: include: A box body, one side of which is provided with an air inlet, and the other side of which is provided with an air outlet; A filter assembly, which is detachably disposed in the housing and is used for exhaust gas filtering; and The pipeline assembly includes a collecting tube, an end cover and a branch pipeline. The collecting tube is detachably arranged on the air inlet, and the end cover is detachably arranged on the collecting tube. A plurality of insertion holes are circumferentially distributed on the outer side of the collecting tube. One end of a plurality of branch pipelines is detachably arranged in the corresponding insertion hole, and the other end is used to be connected to the exhaust gas discharge end of the extruded pipe.

2. The centralized waste gas treatment device for polyethylene pipe production according to claim 1, characterized in that: A plurality of baffles are arranged on the inner side of the box body from left to right, forming a plurality of filter chambers in the box body, and the baffles are staggered and distributed up and down in sequence to form a serpentine flow channel that passes through each filter chamber in sequence.

3. The centralized waste gas treatment device for polyethylene pipe production according to claim 2, characterized in that: The front side of the box body is provided with a plurality of sockets, and a plurality of filter components are inserted into the sockets one by one and are arranged inside each of the filter chambers.

4. The centralized waste gas treatment device for polyethylene pipe production according to claim 3, characterized in that: The filter assembly includes a receiving box and a filter element. The top of the receiving box is open, the bottom of the receiving box is provided with a grid, the filter element is inserted into the inner side of the receiving box, and the receiving box is inserted into the inner side of the corresponding socket.

5. The centralized waste gas treatment device for polyethylene pipe production according to claim 4, characterized in that: The filter element is honeycomb activated carbon, activated carbon rod or high-efficiency filter net.

6. The centralized waste gas treatment device for polyethylene pipe production according to claim 5, characterized in that: A fan is arranged on the air outlet.

7. The centralized waste gas treatment device for polyethylene pipe production according to claim 6, characterized in that: There are multiple collecting tubes, and the multiple collecting tubes are threadedly connected in sequence head to tail. The collecting tube at one end is threadedly connected to the end cover, and the collecting tube at the other end is threadedly connected to the air inlet.

8. The centralized waste gas treatment device for polyethylene pipe production according to claim 7, characterized in that: The pipeline assembly also includes a sealing cover, and a plurality of the sealing covers are detachably arranged in the corresponding insertion holes.

9. The centralized waste gas treatment device for polyethylene pipe production according to claim 8, characterized in that: The sealing cover and the end of the branch pipeline are both provided with sealing sleeves, and are plugged into the corresponding insertion holes.

10. The centralized waste gas treatment device for polyethylene pipe production according to claim 9, characterized in that: A handle is arranged on the front of the accommodating box.

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