Filtering structure and sewage treatment equipment

Abstract

This utility model discloses a filtration structure and wastewater treatment equipment. The filtration structure includes a filter box, an inlet, an outlet, and a self-cleaning filtration mechanism. The self-cleaning filtration mechanism is installed inside the filter chamber and the cleaning chamber. The self-cleaning filtration mechanism includes a pair of drive shafts, a filter belt, a filter hole cleaning roller, a cleaning brush roller, a transmission assembly, and a collection box. The pair of drive shafts rotate at both ends of the filter chamber, and each shaft is equipped with a pair of drive wheels. The filter belt is mounted on the two pairs of drive wheels and has multiple filter holes drilled into it. The filter hole cleaning roller is mounted on the drive shaft near one end of the cleaning chamber, and its outer wall is in contact with the inner wall of the filter holes. A rotating shaft is rotatably arranged inside the filter chamber, and the cleaning brush roller is mounted on the rotating shaft and in contact with the outer wall of the filter holes. This utility model, by setting up the filter hole cleaning roller and the cleaning brush roller that cooperate internally and externally, allows the filter hole cleaning roller to push out debris from the filter holes when the cleaning brush roller cleans the outer wall of the filter belt.

Description

Technical Field

[0001] This utility model belongs to the technical field of sewage treatment equipment, specifically relating to a filtration structure and sewage treatment equipment. Background Technology

[0002] In the process of wastewater treatment, it is necessary to filter the garbage in the wastewater. Generally, filter plates are used for garbage filtration. However, the garbage in the wastewater is of different sizes, and the garbage filtered out by the filter plates will adhere to the surface of the filter plates. It is necessary to clean the garbage filtered out by the filter plates frequently to ensure the filtration quality. However, the wastewater supply must be stopped before cleaning can be carried out. It is not possible to carry out cleaning work simultaneously with filtration, which reduces the wastewater treatment efficiency.

[0003] In the prior art, patent number 202222651166.2 discloses a sewage and garbage filtration structure, including a sewage pipe with a lower notch on the bottom surface and an upper notch on the top surface, the cross-sectional area of ​​the lower notch being larger than that of the upper notch; a filter plate confined within a rectangular frame, the rectangular frame being connected to the end of the sewage pipe by four corner fasteners; a pressing unit for pushing the garbage attached to the filter plate downwards; and a collection unit located below the sewage pipe for collecting the garbage pushed down from the filter plate.

[0004] Although the above technology uses a pressing unit that moves up and down to push the debris stuck on the filter plate into the collection unit, the pressing unit can easily cut off the edges of the debris during the pushing process. This causes debris to get stuck in the filter holes of the filter plate. Small debris can easily block the filter holes or pass directly through them, thus causing secondary pollution to the filtered water.

[0005] Therefore, in order to address the above-mentioned technical problems, it is necessary to provide a filtration structure and wastewater treatment equipment.

[0006] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0007] The purpose of this invention is to provide a filtration structure and wastewater treatment equipment that can solve the problem of poor cleaning effect of the cleaning components on the filter plates in existing wastewater filtration structures.

[0008] To achieve the above objectives, the technical solution provided by a specific embodiment of this utility model is as follows:

[0009] A filtration structure includes: a filter box, an inlet, an outlet, and a self-cleaning filtration mechanism.

[0010] The filter box has a filter chamber in the middle, and the cleaning chamber is located at one end of the filter chamber. The water inlet and water outlet are located at the top and bottom of the filter box, respectively.

[0011] The self-cleaning filtration mechanism is installed inside the filter chamber and the cleaning chamber. The self-cleaning filtration mechanism includes: a pair of drive shafts, a filter belt, a filter hole cleaning roller, a cleaning brush roller, a transmission assembly, and a collection box. The pair of drive shafts rotate at opposite ends of the filter chamber, and each is equipped with a pair of drive wheels. The filter belt is mounted on the two pairs of drive wheels and has multiple filter holes drilled into it. The filter hole cleaning roller is mounted on the drive shaft near the cleaning chamber end, and its outer wall is in contact with the inner wall of the filter holes. A rotating shaft is rotatably arranged inside the filter chamber, and the cleaning brush roller is mounted on the rotating shaft and in contact with the outer wall of the filter holes. The transmission assembly is installed between the rotating shaft and the drive shaft, causing the rotating shaft to rotate while the drive shaft rotates. The collection box is installed on the outer wall of the filter box near the filter chamber end. An arc-shaped scraper and an L-shaped baffle are fixed on the collection box. The arc-shaped scraper is in contact with the outer wall of the filter holes, and the L-shaped baffle is located outside the arc-shaped scraper.

[0012] In one embodiment of this utility model, the filter chamber is obliquely disposed on the filter box, and the cleaning chamber is disposed at one of the top ends of the filter chamber. The self-cleaning filter mechanism is obliquely installed inside the filter chamber. By obliquely disposing the filter chamber, sewage is prevented from seeping out of the filter box from one end of the cleaning chamber.

[0013] In one embodiment of this utility model, the inlet is located at one end inside the filter box and is connected to a diversion hood, through which the wastewater is evenly sprayed onto the filter belt.

[0014] In one embodiment of this utility model, a plurality of diversion plates are fixed inside the diversion hood. The diversion hood diverts the water sprayed downward from the inlet through the plurality of diversion plates, so that the sewage is evenly sprayed onto the filter belt.

[0015] In one embodiment of this utility model, reinforcing strips are fixed at both edges of the inner wall of the filter belt, and annular grooves adapted to the reinforcing strips are carved into both pairs of transmission wheels. The reinforcing strips enhance the toughness of the filter belt, and the annular grooves on the transmission wheels, allowing the reinforcing strips to rotate within them, prevent positional shift of the filter belt during rotation.

[0016] In one embodiment of this invention, a pair of reinforcing strips are each equally spaced with multiple teeth, and the bottom walls of the two pairs of annular grooves are each equally spaced with multiple grooves that match the teeth. When the drive shaft drives the filter belt to rotate via the drive wheel, the teeth on the reinforcing strips engage with the grooves on the inner wall of the annular grooves, thereby preventing slippage when the drive wheel drives the filter belt to rotate, thus improving the transmission efficiency of the drive shaft.

[0017] In one embodiment of this utility model, the transmission assembly includes a driven gear and a driving gear. The driven gear and the driving gear are respectively fixed to one end of the rotating shaft and the transmission shaft located outside the filter box, and are meshed with each other. When the transmission shaft rotates, the driving gear drives the driven gear to rotate in the opposite direction, thereby causing the driven gear to drive the rotating shaft to rotate in the opposite direction of the transmission shaft's rotation. The rotating shaft then drives the cleaning brush roller to rotate in the opposite direction of the filter belt's rotation.

[0018] In one embodiment of this utility model, the radius of the driving gear is greater than the radius of the driven gear. Because the radius of the driving gear is greater than the radius of the driven gear, when the drive shaft drives the driven gear to rotate one revolution, the driven gear can drive the rotating shaft to rotate multiple revolutions. Therefore, the rotating shaft drives the cleaning brush roller to rotate at a speed greater than the speed of the filter belt. Thus, the cleaning brush roller can more effectively brush the garbage on the filter belt into the collection box.

[0019] In one embodiment of this utility model, the top of the L-shaped baffle is fixed with a plurality of cleaning claws, the head ends of the plurality of cleaning claws are inserted into the cleaning brush roller to prevent foreign objects from getting entangled in the cleaning brush roller. Therefore, when the cleaning brush roller rotates, the plurality of cleaning claws remove and scrape out the foreign objects that are entangled on the cleaning brush roller.

[0020] This utility model also discloses a sewage treatment device, including a filtration structure.

[0021] Compared with the prior art, the filter structure and sewage treatment equipment of this utility model, by setting up filter hole cleaning rollers and cleaning brush rollers that cooperate internally and externally, so that when the cleaning brush roller cleans the outer wall of the filter belt, the filter hole cleaning roller pushes the debris in the filter hole outward. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of a filter structure in one embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of a filtering structure from another perspective in one embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the structure of the flow divider in one embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of the filter belt, filter hole cleaning roller and cleaning brush roller in one embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the structure of the collection box in one embodiment of the present invention.

[0028] Explanation of key figure labels:

[0029] 1-Filter box, 101-Filter chamber, 102-Cleaning chamber, 103-Inlet, 104-Outlet, 105-Diverter hood, 106-Diverter plate, 2-Self-cleaning filter mechanism, 201-Drive shaft, 202-Drive wheel, 203-Filter belt, 204-Filter holes, 205-Reinforcing strip, 206-Circular groove, 207-Filter hole cleaning roller, 208-Rotating shaft, 209-Cleaning brush roller, 210-Driven gear, 211-Drive gear, 212-Collection box, 213-Arc scraper, 214-L-shaped baffle, 215-Cleaning claw. Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solutions in this disclosure, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this disclosure.

[0031] like Figures 1 to 5 As shown, a filtration structure in one embodiment of the present invention includes: a filter box 1, an inlet 103, an outlet 104, and a self-cleaning filtration mechanism 2.

[0032] like Figures 1 to 5 As shown, a filter chamber 101 is provided in the middle of the filter box 1, and a cleaning chamber 102 is provided at one end of the filter chamber 101. An inlet 103 and an outlet 104 are respectively located at the top and bottom of the filter box 1. The filter chamber 101 is used for the self-cleaning filter mechanism 2 to rotate within it. One end of the cleaning chamber 102 is used to install a cleaning brush roller 209. The inlet 103 is used to add wastewater into the filter box 1, and the outlet 104 is used to discharge the filtered wastewater from the filter box 1.

[0033] like Figures 1 to 5As shown, the self-cleaning filter mechanism 2 is installed in the filter chamber 101 and the cleaning chamber 102. The self-cleaning filter mechanism 2 includes: a pair of drive shafts 201, a filter belt 203, a filter hole cleaning roller 207, a cleaning brush roller 209, a transmission assembly, and a collection box 212. The pair of drive shafts 201 rotate at both ends of the filter chamber 101, and each is equipped with a pair of drive wheels 202. The filter belt 203 is installed on the two pairs of drive wheels 202, and has multiple filter holes 204 drilled on it. The filter hole cleaning roller 207 is installed on the drive shaft 201 near one end of the cleaning chamber 102, and its outer wall is in contact with the inner wall of the filter hole 204. A rotating shaft 208 is rotatably arranged in the filter chamber 101, and the cleaning brush roller 209 is installed on the rotating shaft 208 and in contact with the outer wall of the filter hole 204. The transmission assembly is installed between the rotating shaft 208 and the drive shaft 201, so that the rotation of the drive shaft 201 drives the rotating shaft 208 to rotate. The collection box 212 is installed on the outer wall of the filter box 1 near the filter chamber 101. An arc-shaped scraper 213 and an L-shaped baffle 214 are fixed on the collection box 212. The arc-shaped scraper 213 is attached to the outer wall of the filter hole 204, and the L-shaped baffle 214 is located on the outside of the arc-shaped scraper 213.

[0034] One end of the drive shaft 201 near the cleaning chamber 1, located outside the filter box 1, requires an external drive motor to rotate. The motor model is KF107DRN132M4. The drive shaft 201 drives the filter belt 203 to rotate via a pair of drive wheels 202. The other end of the drive shaft 201 assists in rotating the filter belt 203. The filter holes 204 on the filter belt 203 are used to filter out foreign objects in the wastewater. Furthermore, the outer wall of the filter hole cleaning roller 207 is provided with stiff bristles, the length of which can extend into the filter holes 204 on the filter belt 203. When the filter belt 203 rotates to the filter hole cleaning roller 207, the stiff bristles on the filter hole cleaning roller 207 extend into the filter holes 204, thereby pushing the impurities in the filter holes 204 upward.

[0035] Secondly, when the drive shaft 201 rotates, it drives the rotating shaft 208 to rotate in the opposite direction via the transmission assembly. The rotating shaft 208 drives the cleaning brush roller 209 to rotate in the opposite direction to the filter belt 203. When the cleaning brush roller 209 rotates, it cleans the debris on the filter belt 203 and the debris pushed out of the filter holes 204 by the filter hole cleaning roller 207 onto the arc-shaped scraper 213, and then slides down the arc-shaped scraper 213 into the collection box 212. In addition, the L-shaped baffle 214 is used to block foreign objects and prevent the cleaning brush roller 209 from rotating foreign objects out of the collection box 212 when selecting.

[0036] like Figures 1 to 3As shown, the filter chamber 101 is obliquely arranged on the filter box 1, and the cleaning chamber 102 is located at one end of the top of the filter chamber 101. The self-cleaning filter mechanism 2 is obliquely installed inside the filter chamber 101. By obliquely arranging the filter chamber 101, sewage is prevented from seeping out of the filter box 1 from one end of the cleaning chamber 102. The inlet 103 is located inside the filter box 1 and is connected to a diversion hood 105. The inlet 103 distributes the sewage evenly onto the filter belt 203 through the diversion hood 105.

[0037] like Figures 3 to 4 As shown, multiple diversion plates 106 are fixed inside the diversion hood 105. The diversion hood 105 uses the multiple diversion plates 106 to divert the water sprayed downwards from the inlet 103, so that the sewage is evenly sprayed onto the filter belt 203. Reinforcing strips 205 are fixed to both sides of the inner wall of the filter belt 203, and circular grooves 206 adapted to the reinforcing strips 205 are carved into both pairs of drive wheels 202. The reinforcing strips 205 enhance the toughness of the filter belt 203. Furthermore, by carving the circular grooves 206 on the drive wheels 202 and allowing the reinforcing strips 205 to rotate within the circular grooves 206, the position of the filter belt 203 is prevented from shifting during rotation.

[0038] like Figure 4 As shown, a pair of reinforcing strips 205 are each chiseled with multiple teeth at equal intervals, and the bottom walls of two pairs of annular grooves 206 are each fixed with multiple grooves that match the teeth at equal intervals. When the drive shaft 201 drives the filter belt 203 to rotate via the drive wheel 202, the teeth on the reinforcing strips 205 engage with the grooves on the inner wall of the annular grooves 206, thereby preventing slippage when the drive wheel 202 drives the filter belt 203 to rotate, thus improving the transmission efficiency of the drive shaft 201.

[0039] like Figure 2 and Figure 4 As shown, the transmission assembly includes a driven gear 210 and a driving gear 211. The driven gear 210 and the driving gear 211 are respectively fixed to one end of the rotating shaft 208 and the transmission shaft 201 located outside the filter box 1, and are meshed with each other. When the transmission shaft 201 rotates, the driving gear 211 drives the driven gear 210 to rotate in the opposite direction, thereby causing the driven gear 210 to drive the rotating shaft 208 to rotate in the opposite direction to the rotation direction of the transmission shaft 201. The rotating shaft 208 then drives the cleaning brush roller 209 to rotate in the opposite direction to the rotation direction of the filter belt 203.

[0040] like Figure 2 and Figure 4As shown, the radius of the driving gear 211 is larger than the radius of the driven gear 210. Since the radius of the driving gear 211 is larger than the radius of the driven gear 210, when the drive shaft 201 drives the driven gear 210 to rotate one revolution, the driven gear 210 can drive the rotating shaft 208 to rotate multiple revolutions. Therefore, the rotating shaft 208 drives the cleaning brush roller 209 to rotate at a speed greater than the rotation speed of the filter belt 203. Thus, the cleaning brush roller 209 can more effectively brush the garbage on the filter belt 203 into the collection box 212.

[0041] like Figure 1 and Figure 5 As shown, the top of the L-shaped baffle 214 is fixed with multiple cleaning claws 215. The head ends of the multiple cleaning claws 215 are inserted into the cleaning brush roller 209 to prevent foreign objects from getting entangled inside the cleaning brush roller 209. Therefore, when the cleaning brush roller 209 rotates, the multiple cleaning claws 215 remove and scrape out the foreign objects that are entangled on the cleaning brush roller 209.

[0042] This utility model also discloses a sewage treatment device, which includes the above-mentioned filtration structure.

[0043] Working principle: When in use, sewage is added into the filter box 1 through the inlet 103. After entering the inlet 103, the sewage is divided by the diversion hood 105 and discharged horizontally and evenly onto the filter belt 203. After passing through the filter belt 203, the sewage is filtered by the filter holes 204 on the filter belt 203, and the impurities in the sewage are filtered onto the filter belt 203. The filtered sewage is finally discharged from the filter box 1 through the outlet 104.

[0044] Secondly, the transmission shaft 201 drives a pair of transmission wheels 202 to rotate, which in turn drives the filter belt 203 to rotate. When the filter belt 203 rotates, it moves the foreign objects on it toward the cleaning chamber 102. When the filter belt 203 moves to the filter hole cleaning roller 207 and the cleaning brush roller 209, the filter hole cleaning roller 207 first pushes the foreign objects in the filter hole 204 outward. Then, through the rotation of the cleaning brush roller 209, the debris on the filter belt 203 and the debris pushed out by the filter hole cleaning roller 207 are cleaned onto the arc-shaped scraper 213 and slide down along the arc-shaped scraper 213 into the collection box 212.

[0045] It will be apparent to those skilled in the art that this disclosure is not limited to the details of the exemplary embodiments described above, and that this disclosure can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of this disclosure is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this disclosure. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0046] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A filter structure, characterized in that, include: A filter box, wherein a filter chamber is provided in the middle of the filter box and a cleaning chamber is located at one end of the filter chamber; The inlet and outlet are located at the top and bottom of the filter box, respectively. and A self-cleaning filter mechanism is installed inside the filter chamber and the cleaning chamber. The self-cleaning filter mechanism includes: a pair of drive shafts, a filter belt, a filter hole cleaning roller, a cleaning brush roller, a transmission assembly, and a collection box. The pair of drive shafts rotate at both ends of the filter chamber, and each is equipped with a pair of drive wheels. The filter belt is installed on the two pairs of drive wheels and has multiple filter holes drilled on it. The filter hole cleaning roller is installed on the drive shaft near one end of the cleaning chamber, and its outer wall is attached to the inner wall of the filter hole. A rotating shaft is rotatably arranged inside the filter chamber. The cleaning brush roller is installed on the rotating shaft and is attached to the outer wall of the filter hole. The transmission assembly is installed between the rotating shaft and the drive shaft, so that the drive shaft rotates while driving the rotating shaft to rotate. The collection box is installed on the outer wall of the filter box near one end of the filter chamber. An arc-shaped scraper and an L-shaped baffle are fixed on the collection box. The arc-shaped scraper is attached to the outer wall of the filter hole, and the L-shaped baffle is located on the outside of the arc-shaped scraper.

2. The filter structure according to claim 1, characterized in that, The filter chamber is obliquely arranged on the filter box, and the cleaning chamber is located at the top end of the filter chamber. The self-cleaning filter mechanism is obliquely installed inside the filter chamber.

3. The filter structure according to claim 1, characterized in that, The water inlet is located at one end inside the filter box and is connected to a flow divider.

4. A filter structure according to claim 3, characterized in that, Multiple flow dividers are fixed inside the flow divider shroud.

5. A filter structure according to claim 1, characterized in that, Reinforcing strips are fixed at both sides of the inner wall of the filter belt, and annular grooves adapted to the reinforcing strips are carved into both pairs of transmission wheels.

6. A filter structure according to claim 5, characterized in that, Each pair of reinforcing strips has multiple teeth chiseled at equal intervals, and the bottom walls of the two pairs of annular grooves have multiple grooves that match the teeth at equal intervals.

7. A filter structure according to claim 1, characterized in that, The transmission assembly includes a driven gear and a driving gear, which are respectively fixed to one end of the rotating shaft and the transmission shaft located outside the filter box, and mesh with each other.

8. A filter structure according to claim 7, characterized in that, The radius of the driving gear is greater than the radius of the driven gear.

9. A filter structure according to claim 1, characterized in that, The top of the L-shaped baffle is fixed with multiple cleaning claws, and the head ends of the multiple cleaning claws are inserted into the cleaning brush roller.

10. A wastewater treatment device, characterized in that, Includes a filter structure as described in any one of claims 1-9.

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