Resolution gas filtering device

Abstract

The utility model provides an analytic gas filtering device, and relates to the technical field of analytic gas filtering, the analytic gas filtering device comprises a filtering box, a partition plate is fixedly arranged in the filtering box, the partition plate divides the filtering box into a separation chamber and a filtering chamber from left to right, one side of the filtering box is provided with a gas inlet communicated with the separation chamber, a separation gas guide assembly is arranged in the separation chamber, and a filter element is arranged in the filtering chamber; the top of the filter box is provided with an air distribution cover communicated with the filter chamber, the top of the filter box is provided with a pipeline, one end of the pipeline is connected with the separation gas guide assembly, the other end of the pipeline is connected with the air distribution cover, and the bottom of the filter box is provided with a sewage discharge hopper communicated with the separation chamber; most dust particles and tar liquid drops in analysis gas are separated out under the action of the separation gas guide assembly, and then the analysis gas enters the filter chamber through the pipeline and the air distribution cover to be filtered, so that blockage of a filter element is effectively delayed, frequent replacement of the filter element is avoided, the maintenance cost and the downtime are reduced, and normal operation of a system is maintained.

Description

Technical Field

[0001] This application relates to the technical field of analytical gas filtration, and more specifically, to an analytical gas filtration device. Background Art

[0002] Analytical gas is a gas mixture formed by releasing the adsorbed or absorbed gas components from a certain medium by changing factors such as temperature and pressure under specific process conditions. During the coal coking process, various gas components are generated, such as coal gas. When treating and purifying this coal gas, processes such as adsorption and absorption may be used, thus generating analytical gas.

[0003] Analytical gas contains a certain amount of H2, CO, and CH4, and belongs to an energy-reusable medium. When recycling analytical gas, however, analytical gas contains impurities such as dust and tar. In order to prevent these impurities from affecting the normal operation of the recycling equipment and reducing the quality of the recycled products, a filtration device is required to filter the dust and tar in the analytical gas.

[0004] However, when the existing filtration device is in use, the dust and tar in the analytical gas are likely to accumulate and block on the surface of the filter element, and the filter element needs to be frequently replaced, increasing the maintenance cost and downtime. Moreover, the blockage will cause an increase in the filtration resistance and affect the normal operation of the system. Summary of the Invention

[0005] The purpose of the embodiments of this application is to provide an analytical gas filtration device, which can solve the technical problem that the dust and tar in the analytical gas are easily accumulated and blocked on the surface of the filter element of the filtration device.

[0006] The embodiments of this application provide an analytical gas filtration device, including a filtration box. A partition plate is fixedly installed in the filtration box. The partition plate divides the filtration box into a separation chamber and a filtration chamber from left to right. An air inlet communicating with the separation chamber is provided on one side of the filtration box. A separation air guiding component is arranged in the separation chamber. A filter element is arranged in the filtration chamber. An air distribution hood communicating with the filtration chamber is provided on the top of the filtration box. A pipeline is provided on the top of the filtration box. One end of the pipeline is connected to the separation air guiding component, and the other end of the pipeline is connected to the air distribution hood. A sewage discharge hopper communicating with the separation chamber is provided at the bottom of the filtration box. A first valve is provided at the sewage discharge port of the sewage discharge hopper. An air outlet communicating with the filtration chamber is provided on one side of the filtration box.

[0007] Furthermore, the separation air guiding component includes a guide air pipe and a spiral separation guide plate. The spiral separation guide plate is fixedly arranged on the outer surface of the guide air pipe. The guide air pipe is fixedly arranged in the middle of the separation chamber. The upper end of the guide air pipe extends outside the filtration box and is connected to the pipeline.

[0008] Further, a filter rack is inserted into the filter box in a pluggable manner, and the filter element is laid on the filter rack.

[0009] Further, a sealing ring is provided at the connection between the filter rack and the filter box, and the sealing ring is fixed on the filter rack.

[0010] Further, the filter element is made of expanded polytetrafluoroethylene.

[0011] Further, an inclined guide plate is provided at the bottom of the filter chamber, a sewage discharge pipe communicating with the filter chamber is provided at the bottom of the filter box, a second valve is provided on the sewage discharge pipe, the sewage discharge pipe is located at the lower end of the inclined guide plate, and the air outlet is located at the upper end of the inclined guide plate.

[0012] Further, a air distribution plate with uniformly arranged through holes is fixed in the air distribution hood.

[0013] Advantages of the present utility model:

[0014] In the present utility model, a partition plate is fixedly arranged in the filter box. The partition plate divides the filter box into a separation chamber and a filter chamber from left to right. An air inlet communicating with the separation chamber is provided on one side of the filter box. A separation air guiding component is arranged in the separation chamber. A filter element is arranged in the filter chamber. An air distribution hood communicating with the filter chamber is provided on the top of the filter box. A pipeline is provided on the top of the filter box. One end of the pipeline is connected to the separation air guiding component, and the other end of the pipeline is connected to the air distribution hood. The analysis gas enters the separation chamber from the air inlet. Under the action of the separation air guiding component, most of the dust particles and tar droplets in the analysis gas are separated out, and then enter the filter chamber through the pipeline and the air distribution hood for filtration, effectively delaying the blockage of the filter element, avoiding frequent replacement of the filter element, reducing the maintenance cost and downtime, and maintaining the normal operation of the system. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 Structural schematic diagram of some embodiments of the present application;

[0017] Figure 2 Cross-sectional view of some embodiments of the present application;

[0018] Reference numerals are respectively:

[0019] 1. Filter box; 2. Partition board; 3. Separation chamber; 4. Filtration chamber; 5. Air inlet; 6. Separation air guide assembly; 61. Air duct; 62. Spiral separation guide plate; 7. Filter element; 8. Air distribution hood; 9. Pipeline; 10. Drain hopper; 11. First valve; 12. Air outlet; 13. Filter rack; 14. Sealing ring; 15. Inclined guide plate; 16. Drain pipe; 17. Second valve; 18. Air distribution plate. Detailed implementation manners

[0020] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some but not all of the embodiments of the present application. Usually, the components of the embodiments of the present application described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application claimed, but merely represents the selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0022] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0023] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the present application is usually placed when in use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present application. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and should not be construed as indicating or implying relative importance.

[0024] In addition, terms such as "horizontal", "vertical", "hanging" do not mean that the components are required to be absolutely horizontal or hanging, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but may be slightly inclined.

[0025] In the description of the present application, it should also be noted that unless otherwise clearly specified and defined, the terms "arranged", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances. Specific embodiments:

[0027] As Figure 1 and Figure 2 shown, the present application provides an analytical gas filtration device, which includes a filtration box 1. A partition plate 2 is fixedly arranged inside the filtration box 1. The partition plate 2 divides the filtration box 1 into a separation chamber 3 and a filtration chamber 4 from left to right. An air inlet 5 communicating with the separation chamber 3 is arranged on one side of the filtration box 1. A separation air guiding assembly 6 is arranged inside the separation chamber 3. A filter element 7 is arranged inside the filtration chamber 4. An air distribution hood 8 communicating with the filtration chamber 4 is arranged on the top of the filtration box 1. A pipeline 9 is arranged on the top of the filtration box 1. One end of the pipeline 9 is connected to the separation air guiding assembly 6, and the other end of the pipeline 9 is connected to the air distribution hood 8. A sewage discharge hopper 10 communicating with the separation chamber 3 is arranged at the bottom of the filtration box 1. A first valve 11 is arranged at the sewage discharge port of the sewage discharge hopper 10. The dust particles and tar droplets separated from the analytical gas under the action of the separation air guiding assembly 6 sink to the sewage discharge hopper 10, and the dust particles and tar droplets in the sewage discharge hopper 10 can be discharged by opening the first valve 11. An air outlet 12 communicating with the filtration chamber 4 is arranged on one side of the filtration box 1. During use, the analytical gas enters the separation chamber 3 from the air inlet 5. Most of the dust particles and tar droplets in the analytical gas are separated under the action of the separation air guiding assembly 6, and then enter the filtration chamber 4 through the pipeline 9 and the air distribution hood 8 for filtration, and finally are discharged from the air outlet 12, effectively delaying the blockage of the filter element 7, avoiding frequent replacement of the filter element 7, reducing the maintenance cost and downtime, and maintaining the normal operation of the system.

[0028] As Figure 2 shown, the separation air guiding assembly 6 includes a guide air pipe 61 and a spiral separation guide plate 62. The spiral separation guide plate 62 is fixedly arranged on the outer surface of the guide air pipe 61. The guide air pipe 61 is fixedly arranged in the middle of the separation chamber 3. The upper end of the guide air pipe 61 extends outside the filtration box 1 and is connected to the pipeline 9. After the analytical gas enters the separation chamber 3, it spirally flows downward under the action of the spiral separation guide plate 62, so that the dust particles and tar droplets in the analytical gas are separated and sink to the sewage discharge hopper 10 for temporary storage, while the separated analytical gas moves upward from the bottom of the guide air pipe 61, passes through the conduit and the air distribution hood 8 and enters the filtration chamber 4.

[0029] As Figure 1 and Figure 2As shown in the figure, a filter rack 13 is inserted into the filter box 1 in a pluggable manner. The filter element 7 is laid on the filter rack 13. By pulling out the filter rack 13, the filter element 7 on the filter rack 13 can be replaced, which is convenient for replacement.

[0030] As Figure 2 shown in the figure, a sealing ring 14 is provided at the connection between the filter rack 13 and the filter box 1. The sealing ring 14 is fixed on the filter rack 13 to prevent the analysis gas from leaking out from the connection between the filter rack 13 and the filter box 1, causing waste and environmental pollution.

[0031] As Figure 2 shown in the figure, the filter element 7 is made of expanded polytetrafluoroethylene. The surface energy of expanded polytetrafluoroethylene is low and it has non-stickiness. Impurities such as dust and tar are not easily firmly attached. At the same time, its unique microporous structure helps to reduce blockage. The filter element 7 made of expanded polytetrafluoroethylene can effectively reduce blockage.

[0032] As Figure 2 shown in the figure, an inclined guide plate 15 is provided at the bottom of the filtration chamber 4. A sewage discharge pipe 16 communicating with the filtration chamber 4 is provided at the bottom of the filter box 1. A second valve 17 is provided on the sewage discharge pipe 16. The sewage discharge pipe 16 is located at the lower end of the inclined guide plate 15, and the air outlet 12 is located at the upper end of the inclined guide plate 15. After the analysis gas is separated by the separation component, the remaining small part of dust particles and tar droplets are further filtered by the filter element 7. The tar and dust mixture dripping from the filter element 7 is guided to the sewage discharge pipe 16 through the inclined guide plate 15. By opening the second valve 17, the tar and dust mixture at the bottom of the filtration chamber 4 can be discharged, and the analysis gas filtered by the filter element 7 is discharged from the air outlet 12.

[0033] As Figure 2 shown in the figure, a air distribution plate 18 with uniformly arranged through holes is fixed in the air distribution hood 8. Through the setting of the air distribution plate 18, the analysis gas enters the filtration chamber 4 evenly for filtration, so that the analysis gas contacts the filter element 7 evenly, avoiding excessive local analysis gas concentration and affecting the filtration effect of the filter element 7.

[0034] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A analytical gas filtering device, characterized in that: It includes a filter box, a partition plate is fixedly provided in the filter box, the partition plate divides the filter box from left to right into a separation chamber and a filter chamber, one side of the filter box is provided with an air inlet connected to the separation chamber, the separation chamber is provided with a separation air guide component, the filter chamber is provided with a filter element, the top of the filter box is provided with an air distribution hood connected to the filter chamber, the top of the filter box is provided with a pipe, one end of the pipe is connected to the separation air guide component, the other end of the pipe is connected to the air distribution hood, the bottom of the filter box is provided with a sewage hopper connected to the separation chamber, the sewage outlet of the sewage hopper is provided with a first valve, and one side of the filter box is provided with an air outlet connected to the filter chamber.

2. The analytical gas filtering device according to claim 1, characterized in that: The separation air guide assembly includes an air guide pipe and a spiral separation guide plate, the spiral separation guide plate is fixed on the outer surface of the air guide pipe, the air guide pipe is fixed in the middle of the separation chamber, and the upper end of the air guide pipe extends to the outside of the filter box and is connected to the pipeline.

3. The analytical gas filtering device according to claim 1, characterized in that: A filter frame is provided in the filter box in a plug-in manner, and the filter element is laid on the filter frame.

4. The analytical gas filtering device according to claim 3, characterized in that: A sealing ring is provided at the connection between the filter frame and the filter box, and the sealing ring is fixed on the filter frame.

5. The analytical gas filtering device according to claim 3, characterized in that: The filter element is made of expanded polytetrafluoroethylene.

6. The analytical gas filtering device according to claim 1, characterized in that: An inclined guide plate is provided at the bottom of the filter chamber, a sewage pipe connected to the filter chamber is provided at the bottom of the filter box, a second valve is provided on the sewage pipe, the sewage pipe is located at the lower end of the inclined guide plate, and the air outlet is located at the upper end of the inclined guide plate.

7. The analytical gas filtering device according to claim 1, characterized in that: An air distribution plate with through holes evenly arranged therein is fixedly arranged in the air distribution cover.

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