Flat integrated filter bag

Abstract

The present application relates to the technical field of filter bag, in particular to a kind of flat integrated filter bag, including cloth bag filter mechanism, cloth bag filter mechanism is fixedly connected with support pipe in, support pipe both ends are inserted into external environment, several filter holes are opened in the outside of support pipe, liquid is filtered first by cloth bag filter mechanism, then liquid is filtered again by several filter holes in the outside of support pipe, filtered liquid is discharged by the lower end of support pipe.The present application filters water source first by cloth bag filter mechanism, then water source passes through several filter holes and enters into support pipe to be filtered again and discharged, when water flow backflush cleaning is carried out, by backflush liquid into guide cavity drives transmission mechanism to rotate, by transmission mechanism drives beating mechanism to beat cloth bag filter mechanism, by beating mechanism to beat cloth bag filter mechanism, filter cake formed by filter material is cleaned under the impact of water flow.

Description

Technical Field

[0001] This invention relates to the field of filter bag technology, specifically a flat, one-piece filter bag. Background Technology

[0002] For example, Chinese patent CN109464831B discloses a flat integrated filter bag, which includes a filter cylinder, two layers of corrugated filter mesh made of stainless steel wire and a non-woven filter bag. The filter cylinder has filter holes distributed on its cylinder wall, and both ends of the filter cylinder extend out of the opening of the non-woven filter bag. The inner side of the two layers of corrugated filter mesh is provided with several flow guiding cavities perpendicular to the axis of the filter cylinder. The corrugated filter mesh on both sides of the flow guiding cavity has an outward convex structure in its natural state.

[0003] However, the above solutions have the following shortcomings: When the filter bag in the prior art is in use, when the filtration liquid passes through the filter bag from the outside for filtration, solid impurities are trapped on the outer surface of the filter bag or in the internal fiber pores, forming a filter cake layer. In order to restore the filtration performance, the prior art often uses water backwashing to wash away the impurities on the surface of the filter bag. However, for the filter cake layer that has formed a certain thickness and is tightly adhered to the filter cloth fibers, it is difficult to completely wash the filter cake off the surface of the filter bag by simply relying on the impact of water flow. Therefore, we have introduced a flat integrated filter bag. Summary of the Invention

[0004] The purpose of this invention is to provide a flat, integrated filter bag to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A flat, integrated filter bag includes a filter bag mechanism. A support tube is fixedly connected inside the filter bag mechanism. Both ends of the support tube extend into the external environment. Several filter holes are opened on the outside of the support tube. The liquid is first filtered by the filter bag mechanism, and then filtered again through the several filter holes on the outside of the support tube. The filtered liquid is discharged through the lower end of the support tube. Two support rods are fixedly connected to the outside of the support tube. The support rods are located inside the bag filter mechanism. A guide cavity is opened in the upper end of the support tube. A transmission mechanism is provided in the guide cavity. The two ends of the transmission mechanism extend into the inside of the bag filter mechanism and are connected to the corresponding beating mechanism. Backwash liquid enters into the guide cavity and drives the transmission mechanism to rotate. The transmission mechanism drives the beating mechanism to beat the bag filter mechanism.

[0006] Preferably, the bag filter mechanism includes an inner non-woven fabric filter layer, a filter mesh layer fixedly connected to the outer side of the inner non-woven fabric filter layer, an activated carbon sponge layer fixedly connected to the outer side of the filter mesh layer, and an outer non-woven fabric filter layer fixedly connected to the outer side of the activated carbon sponge layer.

[0007] Preferably, the inner nonwoven filter layer, filter mesh layer, activated carbon sponge layer and outer nonwoven filter layer are fixedly connected to corresponding connecting rods at both ends, the support tube is fixedly connected to the inner side of the inner nonwoven filter layer, and the support rod is disposed on the inner side of the inner nonwoven filter layer.

[0008] Preferably, the transmission mechanism includes an impeller, which is movably connected to the guide cavity. Both ends of the impeller extend into corresponding clearance grooves and are fixedly connected to the first connecting wheel. The clearance grooves are opened on the outside of the support tube. One end of the first connecting wheel is fixedly connected to a connecting shaft. The end of the connecting shaft away from the support tube is fixedly connected to a second connecting wheel. The end of the second connecting wheel away from the connecting shaft is movably connected to the support rod. T-shaped corrugated guide grooves are opened at opposite ends of the first connecting wheel and the second connecting wheel.

[0009] Preferably, the slapping mechanism includes two swing rods, each with a slider movably connected to both ends. The two sliders slide in corresponding T-shaped corrugated guide grooves. A plurality of slapping rods are fixedly connected to the lower end of the swing rods, and a plurality of L-shaped connecting rods are fixedly connected to the upper end of the swing rods. The L-shaped connecting rods slide in the inner side of a U-shaped rod, and the U-shaped rod is fixedly connected to the lower end of the support rod.

[0010] Preferably, a one-way valve is fixedly connected inside the support tube, and a solenoid valve is provided on the lower side of the one-way valve. The solenoid valve is fixedly connected inside the support tube, and two external threads are opened on the outer side of the support tube.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention filters the water source first through a bag filter mechanism, and then the water source passes through several filter holes into the support pipe for further filtration before being discharged. When backwashing is performed, the backwash liquid enters the guide cavity and drives the transmission mechanism to rotate. The transmission mechanism drives the beater mechanism to beat the bag filter mechanism. The beating of the bag filter mechanism accelerates the cleaning of the filter cake formed by the filter material under the impact of the water flow. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the support tube in the separated state of the present invention; Figure 3 This is a three-dimensional cross-sectional view of the support tube structure of the present invention; Figure 4 This is a three-dimensional structural diagram illustrating the positional relationship between the swing rod and the first connecting wheel of the present invention. Figure 5This is a three-dimensional structural diagram illustrating the positional relationship between the first connecting wheel and the second connecting wheel of the present invention; Figure 6 This is a three-dimensional sectional view of the impeller in its installed state according to the present invention; Figure 7 This is a three-dimensional structural diagram of the clearance groove position of the present invention; Figure 8 This is a three-dimensional structural diagram illustrating the positional relationship between the support rod and the U-shaped rod of the present invention; Figure 9 This is a three-dimensional cross-sectional view of the positional relationship between the outer nonwoven filter layer, activated carbon sponge layer, filter mesh layer, and inner nonwoven filter layer of the present invention.

[0013] In the diagram: 1. Outer non-woven fabric filter layer; 2. Connecting rod; 3. Support tube; 4. L-shaped connecting rod; 5. Support rod; 6. Swing rod; 7. Beating rod; 8. Filter hole; 9. First connecting wheel; 10. Impeller; 11. Connecting shaft; 12. T-shaped corrugated guide groove; 13. Slider; 14. Relief groove; 15. External thread; 16. One-way valve; 17. Guide cavity; 18. U-shaped rod; 19. Inner non-woven fabric filter layer; 20. Filter mesh layer; 21. Activated carbon sponge layer; 22. Second connecting wheel; 23. Solenoid valve. Detailed Implementation

[0014] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] Please see Figures 1-9 The present invention provides a technical solution: Example 1: A flat, integrated filter bag includes a filter bag mechanism. A support tube 3 is fixedly connected inside the filter bag mechanism. Both ends of the support tube 3 extend into the external environment. Several filter holes 8 are opened on the outside of the support tube 3. The liquid is first filtered by the filter bag mechanism, and then filtered again through the several filter holes 8 on the outside of the support tube 3. The filtered liquid is discharged through the lower end of the support tube 3. Two support rods 5 are fixedly connected to the outside of the support tube 3. The support rods 5 are set inside the bag filter mechanism. A guide cavity 17 is opened in the upper end of the support tube 3. A transmission mechanism is set in the guide cavity 17. The two ends of the transmission mechanism extend into the inside of the bag filter mechanism and are connected to the corresponding beating mechanism. The backwash liquid enters into the guide cavity 17 to drive the transmission mechanism to rotate. The transmission mechanism drives the beating mechanism to beat the bag filter mechanism.

[0016] The transmission mechanism includes an impeller 10, which is movably connected to the guide cavity 17. Both ends of the impeller 10 extend into corresponding relief grooves 14 and are fixedly connected to the first connecting wheel 9. The relief grooves 14 are opened on the outside of the support tube 3. The first connecting wheel 9 is set in the relief grooves 14. One end of the first connecting wheel 9 is fixedly connected to a connecting shaft 11. The end of the connecting shaft 11 away from the support tube 3 is fixedly connected to the second connecting wheel 22. The end of the second connecting wheel 22 away from the connecting shaft 11 is movably connected to the support rod 5. T-shaped corrugated guide grooves 12 are opened at opposite ends of the first connecting wheel 9 and the second connecting wheel 22. The T-shaped corrugated guide grooves 12 located on the outside of the first connecting wheel 9 and the second connecting wheel 22 are equal in position and shape.

[0017] Example 2: Based on Example 1, in order to allow the filter material adhering to the surface of the outer non-woven filter layer 1 to detach, the bag filter mechanism includes an inner non-woven filter layer 19, a filter mesh layer 20 fixedly connected to the outer side of the inner non-woven filter layer 19, an activated carbon sponge layer 21 fixedly connected to the outer side of the filter mesh layer 20, and an outer non-woven filter layer 1 fixedly connected to the outer side of the activated carbon sponge layer 21. The outer non-woven filter layer 1 and the inner non-woven filter layer 19 are made of materials such as polypropylene, polyester, and tetrafluoroethylene. The filter mesh layer 20 can be selected from stainless steel filter mesh, nylon, polyester, polypropylene monofilament woven mesh, and high-performance PTFE or PVDF filter mesh, depending on the usage. The water source to be filtered in the equipment passes through the outer non-woven filter layer 1, the activated carbon sponge layer 21, the filter mesh layer 20, and the inner non-woven filter layer 19 in sequence from the outside to the inside for filtration. Since the surrounding area is a water source, the filtered water source enters the support pipe 3 through several filter holes 8 for further filtration.

[0018] The inner nonwoven filter layer 19, filter mesh layer 20, activated carbon sponge layer 21 and the outer nonwoven filter layer 1 are fixedly connected to the corresponding connecting rods 2 at both ends. The support tube 3 is fixedly connected to the inner side of the inner nonwoven filter layer 19. The support rod 5 is set inside the inner nonwoven filter layer 19. The inner nonwoven filter layer 19, filter mesh layer 20, activated carbon sponge layer 21 and the outer nonwoven filter layer 1 are arranged in a ring shape, and their open ends are fixedly connected to the corresponding connecting rods 2.

[0019] The tapping mechanism includes two swing rods 6, with sliders 13 movably connected to both ends of the swing rods 6. The two sliders 13 slide in corresponding T-shaped corrugated guide grooves 12. Several tapping rods 7 are fixedly connected to the lower end of the swing rods 6, and several L-shaped connecting rods 4 are fixedly connected to the upper end of the swing rods 6. The L-shaped connecting rods 4 slide in the inner side of the U-shaped rods 18, and the U-shaped rods 18 are fixedly connected to the lower end of the support rods 5. Since the L-shaped connecting rods 4 connected to the upper end of the swing rods 6 slide in the U-shaped rods 18, and the sliders 13 movably connected to both ends of the swing rods 6 slide in the T-shaped corrugated guide grooves 12, the sliders 13 will move along the T-shaped corrugated guide grooves 12 during the rotation of the first connecting wheel 9 and the second connecting wheel 22. At this time, the tapping rods 7 will move back and forth, tapping the surface of the inner non-woven filter layer 19 by the back-and-forth movement of the tapping rods 7, accelerating the shedding of the filter material adhering to the surface of the outer non-woven filter layer 1.

[0020] A one-way valve 16 is fixedly connected inside the support tube 3. A solenoid valve 23 is provided on the lower side of the one-way valve 16. The solenoid valve 23 is fixedly connected to the inner side of the support tube 3. Two external threads 15 are opened on the outer side of the support tube 3. Through the setting of the one-way valve 16, the water source can only enter the support tube 3 from the upper end. When the water source is filtered, the solenoid valve 23 is in the open state. Under the limit of the one-way valve 16, the filtered water source can be discharged from the support tube 3 through the solenoid valve 23. When backwashing is required, the solenoid valve 23 is closed, and the water source enters the support tube 3 through the one-way valve 16 and then enters the inner non-woven filter layer 19.

[0021] Working principle: During use, the water outlet pipe is installed at the lower end of the support pipe 3 through the two external threads 15 on the outside of the support pipe 3, and the backwash water inlet pipe is installed at the upper end of the support pipe 3. The water source to be filtered in the equipment passes through the outer non-woven fabric filter layer 1, the activated carbon sponge layer 21, the filter mesh layer 20 and the inner non-woven fabric filter layer 19 in sequence from the outside to the inside. Since there is water source all around, the filtered water source enters the support pipe 3 through several filter holes 8 for further filtration. The filtered water source is discharged through the water outlet pipe connected to the lower end of the support pipe 3. When the water source squeezes the outer non-woven fabric filter layer 1, several beaters 7 can squeeze the inner non-woven fabric filter layer 19 to prevent the inner non-woven fabric filter layer 19 from sticking together, which would prevent the water source from entering the support pipe 3 through the filter holes 8. When it is necessary to clean the blockages adhering to the surface of the outer non-woven filter layer 1, clean water is introduced into the guide chamber 17 through the backwash inlet pipe. The water passes through the guide chamber 17 and passes through one side of the impeller 10. At this time, the impeller 10 will start to rotate. The solenoid valve 23 located below the one-way valve 16 is in the closed state. The water enters the inner non-woven filter layer 19 through several filter holes 8 and then is discharged from the inside to the outside, rinsing the filter material adhering to the surface of the outer non-woven filter layer 1. Simultaneously, as the impeller 10 rotates, the first connecting wheel 9 at both ends of it will begin to rotate. Driven by the connecting shaft 11, the two second connecting wheels 22 will begin to rotate. Since the L-shaped connecting rod 4 connected to the upper end of the swing rod 6 slides in the U-shaped rod 18, and the slider 13 connected to both ends of the swing rod 6 slides in the T-shaped corrugated guide groove 12, the slider 13 will move along the T-shaped corrugated guide groove 12 during the rotation of the first connecting wheel 9 and the second connecting wheel 22. At this time, the beating rod 7 will move back and forth, and the beating rod 7 will beat the surface of the inner non-woven filter layer 19 to accelerate the shedding of the filter material adhering to the surface of the outer non-woven filter layer 1.

[0022] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flat, one-piece filter bag, characterized in that: The system includes a bag filter mechanism, in which a support tube is fixedly connected. Both ends of the support tube extend into the external environment. Several filter holes are opened on the outside of the support tube. The liquid is first filtered by the bag filter mechanism, and then filtered again through the several filter holes on the outside of the support tube. The filtered liquid is discharged through the lower end of the support tube. Two support rods are fixedly connected to the outside of the support tube. The support rods are located inside the bag filter mechanism. A guide cavity is opened in the upper end of the support tube. A transmission mechanism is provided in the guide cavity. The two ends of the transmission mechanism extend into the inside of the bag filter mechanism and are connected to the corresponding beating mechanism. Backwash liquid enters into the guide cavity and drives the transmission mechanism to rotate. The transmission mechanism drives the beating mechanism to beat the bag filter mechanism.

2. The flat, integrated filter bag according to claim 1, characterized in that: The bag filter mechanism includes an inner non-woven fabric filter layer, a filter mesh layer fixedly connected to the outer side of the inner non-woven fabric filter layer, an activated carbon sponge layer fixedly connected to the outer side of the filter mesh layer, and an outer non-woven fabric filter layer fixedly connected to the outer side of the activated carbon sponge layer.

3. A flat, integrated filter bag according to claim 2, characterized in that: The inner nonwoven filter layer, filter mesh layer, activated carbon sponge layer and outer nonwoven filter layer are fixedly connected to corresponding connecting rods at both ends. The support tube is fixedly connected to the inner side of the inner nonwoven filter layer, and the support rod is set inside the inner side of the inner nonwoven filter layer.

4. A flat, integrated filter bag according to claim 1, characterized in that: The transmission mechanism includes an impeller, which is movably connected to the guide cavity. Both ends of the impeller extend into corresponding clearance grooves and are fixedly connected to the first connecting wheel. The clearance grooves are opened on the outside of the support tube. One end of the first connecting wheel is fixedly connected to a connecting shaft. The end of the connecting shaft away from the support tube is fixedly connected to a second connecting wheel. The end of the second connecting wheel away from the connecting shaft is movably connected to a support rod. T-shaped corrugated guide grooves are opened at opposite ends of the first and second connecting wheels.

5. A flat, integrated filter bag according to claim 4, characterized in that: The slapping mechanism includes two swing rods, each with a slider movably connected to both ends. The two sliders slide in corresponding T-shaped corrugated guide grooves. Several slapping rods are fixedly connected to the lower end of the swing rods, and several L-shaped connecting rods are fixedly connected to the upper end of the swing rods. The L-shaped connecting rods slide inside a U-shaped rod, and the U-shaped rod is fixedly connected to the lower end of a support rod.

6. A flat, integrated filter bag according to claim 1, characterized in that: A one-way valve is fixedly connected inside the support tube. A solenoid valve is provided on the lower side of the one-way valve. The solenoid valve is fixedly connected to the inner side of the support tube. Two external threads are opened on the outer side of the support tube.

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