Filter material trapping device

Abstract

The utility model relates to a filter material trapping device, which comprises a water outlet unit provided with two side walls and a water outlet weir positioned between the two side walls; each screen mesh assembly comprises a frame and a screen mesh, the screen mesh is provided with a plurality of screen holes, and each frame is provided with two side parts, a bottom part and a top part; the two side guide rails are fixed to the corresponding side walls and extend in the vertical direction; the at least one middle guide rail is located between the two side guide rails in the horizontal direction, and the middle guide rail is fixed to the effluent weir and extends in the vertical direction; the side portions of the frame can be matched with the side guide rails and / or the middle guide rails so that the frame can move in the vertical direction along the side guide rails and / or the middle guide rails.

Description

Technical Field

[0001] This utility model relates to a filter media collection device, and more specifically, to a liftable filter media collection device. Background Technology

[0002] During operation, over time, fine suspended solids and colloidal substances in the wastewater are trapped on the surface and in the pores of the filter media, leading to a decrease in the porosity of the filter media, an increase in head loss, and a decline in treatment efficiency. To ensure the normal operation of the filter, it is necessary to backwash it to remove the contaminants from the filter layer and restore the filter's treatment capacity.

[0003] However, backwashing can easily lead to significant loss of filter media. This is especially true for lightweight filter media, as existing filter media collection devices are ineffective at intercepting lightweight media, are bulky, have high processing costs, and are inconvenient to operate.

[0004] Therefore, it is desirable to propose a filter media collection device to improve upon the shortcomings of the aforementioned prior art. Utility Model Content

[0005] According to one aspect of the present invention, a filter media collection device is provided, comprising: a water outlet unit having two side walls extending in a vertical direction and a water outlet weir located between the two side walls, wherein liquid flows out over the water outlet weir; a plurality of screen assemblies, each screen assembly comprising a frame and a screen surrounded by and fixed to the frame, the screen having a plurality of screen holes, each frame having two sides, a bottom and a top, the two sides extending in a vertical direction and spaced apart, the bottom and top extending in a horizontal direction and respectively connecting the two sides; two side guide rails fixed to the respective side walls and extending in a vertical direction; at least one intermediate guide rail located in a horizontal direction between the two side guide rails, the intermediate guide rail being fixed to the water outlet weir and extending in a vertical direction; wherein the sides of the frame are capable of cooperating with the side guide rails and / or the intermediate guide rail to move the frame in a vertical direction along the side guide rails and / or the intermediate guide rails.

[0006] According to this design, the screen assembly can be easily moved out of the filter tank via the guide rail, making it easy to perform maintenance, replacement, and other operations.

[0007] In some embodiments, the filter media collection device may also include a bottom support member fixed to the outlet weir, the bottom support member being configured to support the bottom of the frame from below the bottom of the frame.

[0008] According to the design, the bottom support component can support the screen used to intercept filter media, while also providing a seal to prevent filter media loss.

[0009] In some designs, the filter media collection device may also include a handle attached to the top of the frame. The handle is made of stainless steel and is used to lift the frame.

[0010] According to the solution, operators can stand on the platform and easily lift or lower the screen along the guide rail using the handle, which greatly reduces the workload required for screen maintenance or replacement.

[0011] In some designs, the handle may have a vertically extending pull section and two lifting rods fixed to the lower end of the pull section, forming an angle between the two lifting rods, which are respectively connected to the top of the frame.

[0012] According to the design, the two lifting rods form a triangular structure with the top of the frame, which helps to stabilize the lifting operation.

[0013] In some designs, the included angle between the two lifting rods can be between 70° and 80°.

[0014] In some solutions, multiple screen assemblies may include: two side screen assemblies, one side of the frame of the side screen assembly being fixed to a corresponding side guide rail and the other side being fixed to a corresponding intermediate guide rail; and at least one intermediate screen assembly, the two sides of the frame of the intermediate screen assembly being respectively fixed to a corresponding intermediate guide rail.

[0015] In some designs, one side of the side guide rail is fixed to the corresponding side wall, and the other side may have a first groove, into which one side of the frame of the side screen assembly is inserted; the two sides of the middle guide rail may each have a second groove, into which the side of the frame of the middle screen assembly is inserted.

[0016] According to this design, the grooves provide a stable track for the movement of the screen assembly, ensuring the directionality and stability of the screen assembly's movement.

[0017] In some embodiments, the screen assembly may also include a support having a horizontal portion and a vertical portion, the horizontal portion extending horizontally between two sides and the vertical portion extending vertically between the bottom and the top, the support being made of stainless steel and configured to support the screen.

[0018] According to the design, the support is used to support the screen, making the screen less prone to deformation.

[0019] In some designs, the water outlet unit may also have a top wall that extends horizontally, is located above the side walls and between the two side walls, and a central guide rail is fixed to the top wall.

[0020] In some designs, the frame can be made of PVC material.

[0021] According to the design, the frame is made of lightweight material, which reduces the weight of the frame and makes it easier to lift the screen assembly. Attached Figure Description

[0022] Figure 1 A front view schematic diagram of a filter media collection device according to an embodiment of the present invention is shown;

[0023] Figure 2 A side cross-sectional view of a filter media collection device according to an embodiment of the present invention is shown;

[0024] Figure 3 A cross-sectional view of another side of the filter media collection device according to an embodiment of the present invention is shown.

[0025] Figure Labels

[0026] 100 Filter Media Collection Device

[0027] 110 Water Outlet Unit

[0028] 112 Sidewall

[0029] 114 Outflow Weir

[0030] 116 Top Wall

[0031] 120 Side Screen Assembly

[0032] 121 sieve

[0033] 122 Frame

[0034] 123 Side

[0035] 124 Bottom

[0036] 125 Top

[0037] 126 Support component

[0038] 127 Horizontal section

[0039] 128 Vertical section

[0040] 130 Intermediate Screen Assembly

[0041] 131 sieve

[0042] 132 Frame

[0043] 133 Side

[0044] 134 Bottom

[0045] 135 Top

[0046] 136 Support component

[0047] 137 Horizontal section

[0048] 138 Vertical section

[0049] 142 Side Guide Rail

[0050] 144 First Groove

[0051] 146 Intermediate Guide Rail

[0052] 148 Second Groove

[0053] 150 Bottom support component

[0054] 160 handle

[0055] 162 Lifting section

[0056] 164 Lifting lever

[0057] 166 Handle

[0058] 170 Side Rail Top Support

[0059] 172 Side rail top fastener

[0060] 174 Side fasteners for the guide rail

[0061] 180 intermediate guide rail support

[0062] 182 Middle guide rail top fastener Detailed Implementation

[0063] To make the objectives, solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Unless otherwise stated, the terms used herein have their ordinary meanings in the art. The same reference numerals in the drawings represent the same parts.

[0064] Figures 1-3The diagrams show front and side views of a filter media collection device 100 according to an embodiment of the present invention. The filter media collection device 100 mainly includes an outlet unit 110 and multiple screen assemblies 120 and 130. The outlet unit 110 has two side walls 112 extending vertically and an outlet weir 114 located between the two side walls 112, through which liquid flows out. The screen assemblies 120 and 130 include screens 121 and 131, each having multiple pores to intercept filter media in the liquid and prevent filter media loss. The screens 121 and 131 can be made of corrosion-resistant materials, such as stainless steel mesh or plastic mesh. The pore size of the screens 121 and 131 can be adjusted according to the filter media particle size; for example, the open area ratio can be not less than 50% to effectively intercept filter media in wastewater.

[0065] To facilitate the replacement and maintenance of screens 121 and 131, the filter media collection device 100 also includes multiple vertically extending guide rails for guiding the vertical movement of screen assemblies 120 and 130. Specifically, the filter media collection device 100 includes two side guide rails 142 and at least one intermediate guide rail 146. The two side guide rails 142 are fixed to corresponding side walls 112, and the intermediate guide rail 146 is located horizontally between the two side guide rails 142 and fixed to the outlet weir 114. The lengths of the side guide rails 142 and the intermediate guide rail 146 can be adjusted according to specific application requirements, for example, approximately 1m. The screen assemblies 120 and 130 also include frames 122 and 132, to which the screens 121 and 131 are surrounded and fixed. Frames 122 and 132 have two sides 123 and 133, a bottom 124 and 134, and a top 125 and 135. The two sides 123 and 133 extend vertically and are spaced apart, while the bottom 124 and 134 and the top 125 and 135 extend horizontally and connect to the two sides 123 and 133 respectively. The sides 123 and 133 of the frames 122 and 132 can cooperate with side guide rails 142 and / or intermediate guide rails 146 to allow the frames 122 and 132 to move vertically along the side guide rails 142 and / or intermediate guide rails 146, thereby facilitating the replacement and maintenance of the screens 121 and 131. Frames 122 and 132 may be made of PVC material. The frames 122 and 132 are made of lightweight materials, which reduces their weight and makes it easier to lift the screen assemblies 120 and 130.

[0066] Preferably, the filter media collection device 100 may further include a bottom support member 150, which is fixed to the outlet weir 114 (e.g., by chemical bolts). The bottom support member 150 is configured to support the bottoms 124, 134 of the frames 122, 132 from below the bottoms of the frames 122, 132. For example, the bottom support member 150 may be made of stainless steel angle steel. The bottom support member 150 can support the screens 121, 131 used to intercept filter media, while also providing a seal to prevent filter media loss.

[0067] Furthermore, the filter media collection device 100 may also include a handle 160, which is connected to the top of the frames 122 and 132. The handle 160 is made of stainless steel and is used to lift the frames 122 and 132. The operator, standing on the platform, can easily lift or lower the screens 121 and 131 along the guide rail using the handle 160, significantly reducing the workload required for maintenance or replacement of the screens 121 and 131. Preferably, the handle 160 may have a vertically extending lifting portion 162 and two lifting rods 164 fixed to the lower end of the lifting portion 162, forming an angle between the two lifting rods 164. The two lifting rods 164 are respectively connected to the tops 125 and 135 of the frames 122 and 132. The two lifting rods 164 and the tops 125 and 135 of the frames 122 and 132 form a triangular structure, which helps to stabilize the lifting operation. More preferably, the included angle between the two lifting rods 164 can be between 70° and 80°, for example, 75°. The upper end of the lifting portion 162 of the handle 160 may be provided with a handle 166, which the operator can grip to operate the handle 160. The lateral dimension of the handle 166 is, for example, not less than 60 mm, to facilitate operator operation.

[0068] Optionally, the multiple screen assemblies may include two side screen assemblies 120 and at least one intermediate screen assembly 130. One side 123 of the frame 122 of the side screen assembly 120 is fixed to a corresponding side guide rail 142, and the other side 123 is fixed to a corresponding intermediate guide rail 146. The two sides 133 of the frame 132 of the intermediate screen assembly 130 are respectively fixed to corresponding intermediate guide rails 146. It should be understood that, although... Figure 1 Three intermediate screen assemblies 130 are shown, but the present invention is not intended to limit the specific number of intermediate screen assemblies 130. The screen assembly may also include one, two, four, eight or more intermediate screen assemblies 130.

[0069] Preferably, one side of the side guide rail 142 is fixed to the corresponding side wall 112, and the other side may be provided with a first groove 144. One side 123 of the frame 122 of the side screen assembly 120 is inserted into the first groove 144 to allow the side screen assembly 120 to move vertically. The two sides of the intermediate guide rail 146 may each be provided with a second groove 148. The side 133 of the frame 132 of the intermediate screen assembly 130 is inserted into the corresponding second groove 148 to allow the intermediate screen assembly 130 to move vertically. The first groove 144 and the second groove 148 provide a stable track for the movement of the screen assemblies 120 and 130, ensuring the directionality and stability of the movement of the screen assemblies 120 and 130. More preferably, as... Figure 2 As shown, the side guide rail 142 can be supported by the side guide rail support 170 to ensure the vertical stability of the side guide rail 142, thereby ensuring the stability of the screen assembly 120 it supports. In addition, the side guide rail 142 can be fastened to the top wall 116 and the side wall 112 respectively via the side guide rail top fastener 172 and the side guide rail side fastener 174.

[0070] Preferably, the screen assemblies 120 and 130 may further include support members 126 and 136, which have horizontal portions 127 and 137 and vertical portions 128 and 138. The horizontal portions 127 and 137 extend horizontally between the two side portions 123 and 133, and the vertical portions 128 and 138 extend vertically between the bottom portions 124 and 134 and the top portions 125 and 135. The support members 126 and 136 are made of stainless steel and configured to support the screens 121 and 131. The support members 126 and 136 support the screens 121 and 131, making the screens 121 and 131 less prone to deformation and ensuring the filtration effect of the screens 121 and 131.

[0071] Furthermore, the water outlet unit 110 may also have a top wall 116 extending horizontally, located above and between the two side walls 112, with an intermediate guide rail 146 fixed to the top wall 116. The upper end of the intermediate guide rail 146 is fixed to the top wall 116, while the middle and lower ends are fixed to the water outlet weir 114, making the intermediate guide rail 146 more securely fixed. More preferably, as... Figure 3 As shown, the intermediate guide rail 146 can be supported by the intermediate guide rail support 180 to ensure the vertical stability of the intermediate guide rail 146, thereby ensuring the stability of the screen assembly 130 it supports. In addition, the intermediate guide rail 146 can be fastened to the top wall 116 via the intermediate guide rail top fastener 182.

[0072] This document describes in detail several exemplary embodiments of the present invention with reference to preferred embodiments. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the concept of the present invention, and various technical features and structures proposed in the present invention can be combined without exceeding the protection scope of the present invention, which is determined by the appended claims.

Claims

1. A filter media collection device, characterized in that, include: The water outlet unit has two side walls extending in a vertical direction and an outlet weir located between the two side walls, through which liquid flows out. Multiple screen assemblies, each screen assembly including a frame and a screen surrounded by and fixed to the frame, the screen having multiple screen holes, each frame having two sides, a bottom and a top, the two sides extending along the vertical direction and spaced apart, the bottom and the top extending along the horizontal direction and respectively connecting the two sides; Two side rails are fixed to the corresponding side walls and extend along the vertical direction; At least one intermediate guide rail is located between the two side guide rails in the horizontal direction, the intermediate guide rail is fixed to the outlet weir, and extends in the vertical direction; The side portion of the frame can cooperate with the side guide rail and / or the middle guide rail to allow the frame to move along the side guide rail and / or the middle guide rail in the vertical direction.

2. The filter media collection device according to claim 1, characterized in that, It also includes a bottom support component, which is fixed to the outlet weir and configured to support the bottom of the frame from below the bottom of the frame.

3. The filter media collection device according to claim 1, characterized in that, It also includes a handle attached to the top of the frame, the handle being made of stainless steel and used for lifting the frame.

4. The filter media collection device according to claim 3, characterized in that, The handle has a vertically extending lifting portion and two lifting rods fixed to the lower end of the lifting portion, the two lifting rods forming an angle between them, and the two lifting rods are respectively connected to the top of the frame.

5. The filter media collection device according to claim 4, characterized in that, The included angle is between 70° and 80°.

6. The filter media collection device according to claim 1, characterized in that, The plurality of screen components include: Two side screen assemblies, wherein one side of the frame of the side screen assembly is fixed to a corresponding side guide rail, and the other side is fixed to a corresponding middle guide rail; At least one intermediate screen assembly, wherein two sides of the frame of the intermediate screen assembly are respectively fixed to corresponding intermediate guide rails.

7. The filter media collection device according to claim 6, characterized in that, One side of the side guide rail is fixed to the corresponding side wall, and the other side is provided with a first groove. One side of the frame of the side screen assembly is inserted into the first groove. The middle guide rail is provided with a second groove on both sides, and the side of the frame of the middle screen assembly is inserted into the corresponding second groove.

8. The filter media collection device according to claim 1, characterized in that, The screen assembly further includes a support member having a horizontal portion and a vertical portion, the horizontal portion extending in a horizontal direction between the two sides, and the vertical portion extending in a vertical direction between the bottom and the top, the support member being made of stainless steel and configured to support the screen.

9. The filter media collection device according to claim 1, characterized in that, The water outlet unit also has a top wall that extends horizontally and is located above the side walls and between the two side walls. The intermediate guide rail is fixed to the top wall.

10. The filter media collection device according to claim 6, characterized in that, The frame is made of PVC material.

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