Sewage filtering device

Abstract

The utility model relates to the field of water purification. The utility model discloses a sewage filtering device which comprises a sleeve, a sleeve cover, a filter cartridge, a water outlet guide pipe and a water guide guide pipe, the filter cartridge comprises a filter cartridge cover and a filter screen used for sewage inflow, one end of the water outlet guide pipe penetrates through the sealed end of the sleeve and extends into the sleeve, and the other end of the water outlet guide pipe penetrates through the sleeve cover and extends out of the sleeve. A plurality of through water inlets are formed in the side, away from the water outlet guide pipe, of the water guide pipe, one end of the water guide pipe is connected to the sleeve, and the other end of the water guide pipe penetrates through the sleeve cover, is laid along the outer side of the filter cartridge, penetrates through the sleeve and extends into the sleeve. The sewage filtering device is provided with the filter screen and a plurality of water inlets in the water guide pipe, so that the water inlet flow and speed are greatly improved, the problem of unsmooth water inlet caused by a single water inlet is avoided, the sleeve and the filter cartridge are not directly communicated, substance exchange between different filtering materials is avoided, and the filtering effect is improved. The stability of the filtering effect is ensured.

Description

Technical Field

[0001] The utility model relates to the field of water purification, and particularly relates to a device for filtering sewage. Background Art

[0002] A sewage filtration device is a device or system used to treat sewage to remove impurities, pollutants, and harmful substances therein. It usually consists of a series of components and structures, including a filtration medium container or tank body, an inlet, an outlet, a backwashing system, etc. The working principle of the sewage filtration device is to use physical, chemical, or biological methods to make the sewage pass through the filtration medium, intercepting solid particles, suspended substances, organic matters, heavy metal ions, and other impurities therein, so as to obtain relatively clean water. According to different filtration precisions and treatment capacities, there are various types of sewage filtration devices, such as coarse filters, fine filters, ultrafiltration devices, reverse osmosis devices, etc. They can be applied to multiple fields such as industrial wastewater treatment, urban sewage treatment, and domestic sewage treatment to reduce the pollution of sewage to the environment and achieve the recycling and reuse of water resources.

[0003] In the prior art, the filtration device for filtering sewage generally only enters water through the inlet. However, when only entering water through one inlet, the flow rate and speed of the inlet water are relatively limited. And the most common problem is that a single inlet is prone to cause the accumulation and blockage of impurities at the inlet, affecting the smoothness of water inlet. The single-inlet water inlet will also cause uneven distribution of water flow in the treatment equipment, affecting the filtration effect. The single inlet will also cause the water flow to concentrate on and impact a certain part of the filter screen or filtration medium, accelerating the wear and damage of this part and shortening its service life. Moreover, when the filtration device in the prior art filters sewage, when the components filled with different filtration materials are connected, different filtration materials have different optimal working conditions and filtration characteristics. Substance exchange will occur between different filtration materials when the components are connected, affecting the stability and reliability of the filtration effect. When there is a problem with the filtration effect, it is difficult to determine which filtration material or which part has failed under the connected condition, increasing the difficulty of troubleshooting. Summary of the Utility Model

[0004] In order to solve the deficiencies of the prior art, the present application discloses a device for filtering sewage that has a relatively large water inlet area and the components filled with different filtration materials are independent of each other.

[0005] The utility model discloses a device for sewage filtration, which comprises a sleeve, a sleeve cover, a filter cylinder, an outlet water conduit and a water guiding conduit. One end of the sleeve is penetrated, and the other end of the sleeve is sealed. The sleeve cover is detachably arranged on the penetrated end of the sleeve. The filter cylinder comprises a filter cylinder cover and a filter screen for sewage inlet. The filter screen is arranged on one side of the filter cylinder cover, and the end of the filter screen far away from the filter cylinder cover is connected to the sealed end of the sleeve. One end of the outlet water conduit penetrates through the sealed end of the sleeve and extends into the sleeve, and the other end of the outlet water conduit penetrates through the sleeve cover and extends out of the sleeve. The filter cylinder is fixed to one side of the sleeve through the outlet water conduit. The water guiding conduit is arranged in the filter cylinder, and a plurality of penetrated water inlets are arranged on the side of the water guiding conduit far away from the outlet water conduit. One end of the water guiding conduit is connected to the sleeve, and the other end of the water guiding conduit penetrates through the sleeve cover and is laid along the outer side of the filter cylinder and penetrates through the sleeve and extends into the sleeve.

[0006] Further, the outlet water conduit penetrates through the sleeve near the middle, the width of the water guiding conduit is larger than that of the outlet water conduit, and the water guiding conduit is arranged on the outer side of the outlet water conduit.

[0007] Further, the distance from the filter screen to the edge of the filter cylinder cover and the distance from the filter screen to the edge of the sleeve are greater than the length of the width of the water guiding conduit.

[0008] Further, a penetrated sleeve outlet water pipe is included on the end of the sleeve cover far away from the filter cylinder.

[0009] Further, the aperture size of the filter screen is greater than or equal to 0.850 mm and less than or equal to 0.150 mm.

[0010] Further, a filtering material is arranged in the sleeve and the filter cylinder, and the filtering material is at least one of activated carbon, quartz sand, zeolite, medical stone and ceramic filter powder.

[0011] Further, the particle size of the filtering material in the filter cylinder is smaller than the particle size of the filtering material in the sleeve.

[0012] The beneficial effects of the utility model:

[0013] 1. The device for sewage filtration of the present application has significant advantages. Firstly, in terms of the water inlet mode, different from only inletting water through a single water inlet, the device for sewage filtration of the present application is provided with a filter screen and a plurality of water inlets on the water guiding conduit, which greatly improves the flow rate and speed of water inlet, avoids the problem of unsmooth water inlet caused by a single water inlet, and the multiple water inlets effectively disperse the water flow, reduce the accumulation and blockage of impurities at the water inlet, ensure the smoothness of water inlet, and at the same time, the uniformly distributed water flow is more uniform in the treatment device, improving the filtration effect. The dispersed water flow also avoids the concentrated impact on a certain part of the filter screen or filtering medium, reduces the wear and damage, and prolongs the service life of the filter screen.

[0014] In the setting of the filtering component of the sewage filtering device of the present application, the sleeve and the filtering cylinder are not directly connected. Different filtering materials in the sleeve and the filtering cylinder can play their roles in relatively independent spaces, avoiding the material exchange between different filtering materials, thus ensuring the stability and reliability of the filtering effect. When there are problems with the filtering effect, since the sleeve and the filtering cylinder are relatively independent, it is possible to more accurately determine which filtering material or which part has failed, greatly reducing the difficulty of troubleshooting. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of a sewage filtering device in an embodiment of the present application.

[0016] Figure 2 It is a schematic structural diagram of a sewage filtering device removing the filtering cylinder in an embodiment of the present application.

[0017] Figure 3 It is Figure 2 an enlarged schematic diagram of part A in

[0018] In the figure: sewage filtering device 100, sleeve 11, sleeve cover 12, sleeve water outlet pipe 121, filtering cylinder 13, filtering cylinder cover 131, filter screen 132, water outlet conduit 14, water guiding conduit 15. Detailed Embodiments

[0019] In order to enable those skilled in the art to better understand the solutions of the present utility model, the technical solutions in the specific embodiments of the present utility model will be clearly and completely described below.

[0020] The present application discloses a sewage filtering device 100, as Figure 1As shown, the sewage filtration device 100 includes a sleeve 11, a sleeve cover 12, a filter cartridge 13, an outlet conduit 14, and a water guiding conduit 15. One end of the sleeve 11 is penetrated, and the other end of the sleeve 11 is sealed. The sleeve cover 12 is detachably arranged on the penetrated end of the sleeve 11. The sleeve 11 is used to place filter materials. The penetrated end of the sleeve 11 and the sleeve cover 12 arranged on the penetrated end are used to open the sleeve cover 12 for easy replacement when the filter materials in the sleeve 11 need to be replaced. The filter cartridge 13 includes a filter cartridge cover 131 and a filter screen 132 for sewage inlet. The filter cartridge 13 is used to place filter materials. The filter screen 132 is arranged on one side of the filter cartridge cover 131. The end of the filter screen 132 away from the filter cartridge cover 131 is connected to the sealed end of the sleeve 11. One end of the outlet conduit 14 penetrates the sealed end of the sleeve 11 and extends into the sleeve 11, and the other end of the outlet conduit 14 penetrates the sleeve cover 12 and extends out of the sleeve 11. The filter cartridge 13 is fixed to one side of the sleeve 11 through the outlet conduit 14. The outlet conduit 14 is used to export the water purified and filtered in the sleeve 11 on the one hand, and to fix the sleeve cover 12 and the filter screen 132 connected to the sleeve cover 12 by penetrating the sleeve cover 12 on the other hand. When the sewage filtration device 100 of the present application is in use, sewage enters through the filter screen 132, and the filter screen 132 is used to block large impurities in the sewage. As Figure 2 shown, the water guiding conduit 15 is arranged in the filter cartridge 13, as Figure 3As shown in the figure, several through water inlets are provided on the side of the water guiding conduit 15 away from the water outlet conduit 14. One end of the water guiding conduit 15 is connected to the sleeve 11, and the other end of the water guiding conduit 15 penetrates through the sleeve cover 12, is laid along the outer side of the filter cartridge 13, and penetrates into the sleeve 11. When the sewage filtering device 100 of the present application is in use, sewage first enters the filter cartridge 13 of the sewage filtering device 100 through the filter screen 132. The filter material in the filter cartridge 13 filters and purifies the sewage for the first time. The water guiding conduit 15 used to guide the sewage out of the filter cartridge 13 is arranged in the filter cartridge 13, and the water outlet conduit 14 is used to fix the water guiding conduit 15. The sewage is led out through several through water inlets provided on the water guiding conduit 15, and the sewage is led into the sleeve 11 through the other end extending into the sleeve 11. At this time, the sewage is purified and filtered for the second time in the sleeve 11. After the filtering is completed, the sewage finally flows out of the sewage filtering device 100 through the water outlet conduit 14. When the sewage filtering device 100 of the present application is in use, sewage first enters the filter cartridge 13 through the filter screen 132. The filter screen 132 first filters out impurities with larger particle sizes. After the sewage is first filtered and purified by the filter material in the cartridge, it is led out from several water inlets of the water guiding conduit 15 and extends into the sleeve 11 for the second purification and filtration. After the filtering is completed, the sewage finally flows out of the sewage filtering device 100 through the water outlet conduit 14. The sewage filtering device 100 of the present application has significant advantages. First, in terms of the water inlet method, different from only entering water through a single water inlet, the sewage filtering device 100 of the present application is provided with the filter screen 132 and several water inlets on the water guiding conduit 15. This greatly improves the flow rate and speed of water inlet, avoids the problem of poor water inlet caused by a single water inlet, and the multiple water inlets effectively disperse the water flow, reducing the accumulation and blockage of impurities at the water inlet, ensuring the smoothness of water inlet. At the same time, the evenly distributed water flow is also more uniform in the processing equipment, improving the filtering effect. The dispersed water flow also avoids the concentrated impact on a certain part of the filter screen 132 or the filtering medium, reducing wear and damage and extending the service life of the filter screen 132. In terms of the setting of the filtering components of the sewage filtering device 100 of the present application, the sleeve 11 and the filter cartridge 13 are not directly connected. Different filter materials in the sleeve 11 and the filter cartridge 13 can play their roles in relatively independent spaces, avoiding the material exchange between different filter materials, thus ensuring the stability and reliability of the filtering effect. When there is a problem with the filtering effect, since the sleeve 11 and the filter cartridge 13 are relatively independent, it is possible to more accurately determine which filter material or which part has a malfunction, greatly reducing the difficulty of troubleshooting.

[0021] As an implementation, the water outlet conduit 14 penetrates through the sleeve 11 near the middle. The width of the water guiding conduit 15 is greater than that of the water outlet conduit 14, and the water guiding conduit 15 is arranged outside the water outlet conduit 14. The water outlet conduit 14 penetrates through the sleeve 11 near the middle, while the water guiding conduit 15 is arranged outside the water outlet conduit 14. After the sewage enters the filter cylinder 13 from the filter screen 132 around the filter cylinder 13, it needs to flow through a position near the middle of the filter cylinder 13 before being discharged through the water guiding conduit 15, which can purify and filter the sewage to the greatest extent. The width of the water guiding conduit is greater than that of the water outlet conduit 14, which can accommodate more sewage, increase the import volume of sewage, and improve the water guiding efficiency.

[0022] As an implementation, the distance from the filter screen 132 to the edge of the filter cylinder cover 131 and the distance from the filter screen 132 to the edge of the sleeve 11 are greater than the length of the width of the water guiding conduit 15. Ensure that the filter screen 132 and the water guiding conduit 15 do not interfere with each other during operation, and prevent the water guiding conduit 15 from hindering the sewage from entering the filter cylinder 13 from the filter screen 132.

[0023] As an implementation, one end of the sleeve cover 12 far away from the filter cylinder 13 includes a penetrating sleeve water outlet pipe 121. By setting the penetrating sleeve water outlet pipe 121 with a different water outlet direction from the water outlet of the water outlet conduit 14, the appropriate water outlet direction can be selected for the sewage filtering device 100.

[0024] As an implementation, the pore size of the filter screen 132 is greater than or equal to 0.850 mm and less than or equal to 0.150 mm. The size of the filter screen 132 set in this way can intercept impurities with larger sizes, such as larger solid particles, fibers, etc. The pore size within this range will neither be too small to cause excessive water inlet resistance and too small flow rate, affecting the filtration efficiency, nor be too large to effectively block larger impurities, achieving a better balance between filtration efficiency and water inlet flux. Further, the pore size of the filter screen 132 is greater than or equal to 0.900 mm and less than or equal to 0.100 mm. Further still, the pore size of the filter screen 132 is greater than or equal to 0.930 mm and less than or equal to 0.970 mm.

[0025] As an implementation, a filtering material is arranged in the sleeve 11 and the filter cylinder 13, and the filtering material is at least one of activated carbon, quartz sand, zeolite, medical stone and ceramic filter powder.

[0026] As an implementation manner, the particle size of the filter material in the filter cartridge 13 is smaller than that of the filter material in the sleeve 11. The filter material with a smaller particle size can more effectively remove smaller impurities and pollutants. Setting it in the filter cartridge 13 for prior treatment can reduce the burden on the filter material in the sleeve 11 and extend the service life of the filter material in the sleeve 11. The filter material with a smaller particle size in the filter cartridge 13 and the filter material with a larger particle size in the sleeve 11 form a graded filtration. First, the finer filter material in the filter cartridge 13 performs preliminary fine filtration, and then the coarser filter material in the sleeve 11 performs further treatment to improve the filtration effect.

[0027] It should be understood that for those of ordinary skill in the art, improvements or transformations can be made according to the above description, and all such improvements and transformations shall fall within the protection scope of the appended claims of the present utility model.

Claims

1. A device for sewage filtration, characterized in that, Comprising: A sleeve, one end of the sleeve is penetrated, and the other end of the sleeve is sealed; A sleeve cover, which is detachably arranged on the penetrated end of the sleeve; A filter cartridge, the filter cartridge includes a filter cartridge cover and a filter screen for sewage inlet, the filter screen is arranged on one side of the filter cartridge cover, and the end of the filter screen far from the filter cartridge cover is connected to the sealed end of the sleeve; An outlet conduit, one end of the outlet conduit penetrates the sealed end of the sleeve and extends into the sleeve, the other end of the outlet conduit penetrates the sleeve cover and extends out of the sleeve, and the filter cartridge is fixed to one side of the sleeve through the outlet conduit; A water guiding conduit, the water guiding conduit is arranged in the filter cartridge, and a number of penetrated water inlets are arranged on the side of the water guiding conduit far from the outlet conduit, one end of the water guiding conduit is connected to the sleeve, and the other end of the water guiding conduit penetrates to the sleeve cover and is laid along the outer side of the filter cartridge and penetrates into the sleeve.

2. The device for filtering sewage according to claim 1, wherein: The outlet conduit penetrates near the middle of the sleeve, the width of the water guiding conduit is larger than that of the outlet conduit, and the water guiding conduit is arranged outside the outlet conduit.

3. The device for filtering sewage according to claim 1, wherein: The distance from the filter screen to the edge of the filter cartridge cover and the distance from the filter screen to the edge of the sleeve are greater than the length of the width of the water guiding conduit.

4. The device for filtering sewage according to claim 1, wherein: The sleeve cover includes a penetrated sleeve outlet pipe at the end far from the filter cartridge.

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