Pre-blocking valve before MBR membrane tank

Abstract

The utility model relates to sewage treatment technical field especially relates to a kind of MBR membrane pool front anti-blocking valve, including valve valve plate, hoist, screw rod and grid, the screw rod is connected with the hoist thread, the valve valve plate is connected with the bottom end of the screw rod, the grid is connected with the bottom end of the valve valve plate;The valve valve plate and the grid are located in the water inlet hole side of MBR membrane pool, the hoist can drive the screw rod drive the valve valve plate and the grid movement along vertical direction, to make the valve valve plate and the grid one of them can block the water inlet hole;When MBR system normal operation, grid is located at water inlet hole to block water inlet hole, and then through grid, smaller suspended solids in sewage, colloidal particles, fiber, hair and other filamentous pollutants are intercepted, avoid its into membrane pool, to effectively avoid the occurrence of MBR membrane block membrane condition, ensure the normal operation of MBR system.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to an anti-clogging valve in front of an MBR membrane tank. Background Technology

[0002] In recent years, a large number of wastewater treatment projects have adopted the MBR (Membrane Bio-Reactor) process. In actual operation, membrane clogging often occurs. The reason is usually that pollutants such as suspended solids (SS), colloidal particles, fibers, and hair enter the membrane tank and become entangled in the membrane fibers, resulting in local filtration obstruction.

[0003] Existing valves are unable to effectively intercept filamentous pollutants such as suspended solids (SS), colloidal particles, fibers, and hair, leading to membrane pool blockage. Utility Model Content

[0004] The purpose of this invention is to provide an anti-clogging valve before the MBR membrane tank, which can effectively intercept filamentous pollutants.

[0005] To solve the above-mentioned technical problems, this utility model provides an anti-blocking valve for an MBR membrane tank, comprising: a valve plate, a gate opener, a screw, and a screen. The screw is threadedly connected to the gate opener, the valve plate is connected to the bottom end of the screw, and the screen is connected to the bottom end of the valve plate. Both the valve plate and the screen are located on the side of the inlet of the MBR membrane tank. The gate opener can drive the screw to move the valve plate and the screen vertically, so that one of the valve plate and the screen can block the inlet.

[0006] Optionally, the grille includes a connected grille enclosure and a grille baffle. The grille enclosure is connected to the bottom end of the valve plate, and the grille baffle is arranged parallel to the water inlet, and the grille baffle can cover the water inlet.

[0007] Optionally, the gate opener includes a mounting base and a rotating handle rotatably connected to the mounting base, the rotating handle having a nut, and the lead screw being threadedly connected to the nut.

[0008] Optionally, the mounting base is provided with a base connecting tube for the lead screw to pass through, and the end of the mounting base near the rotating handle is provided with a bearing mounting tube that communicates with the base connecting tube. A bearing is sleeved on the bearing mounting tube, and the bearing is connected to the rotating handle.

[0009] Optionally, the rotating handle includes a handle base and a nut mounting tube located within the handle base. The handle base is connected to the bearing, the nut mounting tube communicates with the bearing mounting tube, and the nut is fixedly connected in the nut mounting tube.

[0010] Optionally, the top of the MBR membrane tank is provided with a first embedded steel plate, the gate hoist is connected to the first embedded steel plate, the first embedded steel plate is provided with a reserved hole, and the top end of the screw passes through the reserved hole to be threadedly connected to the gate hoist.

[0011] Optionally, the side wall of the MBR membrane tank is provided with a guide rail arranged in a vertical direction, and the valve plate is slidably connected to the guide rail.

[0012] Optionally, the guide rail includes a first guide rail and a second guide rail, both of which are provided with guide grooves. Guide slide plates are provided on both sides of the valve plate, and the guide slide plates are slidably connected in the guide grooves.

[0013] Optionally, a second embedded steel plate is provided on the side wall of the MBR membrane tank, and the guide rail is fixedly connected to the second embedded steel plate.

[0014] Optionally, both the valve plate and the grille are made of stainless steel, and the grille gap is less than or equal to 1 mm.

[0015] Compared with the prior art, the anti-clogging valve before the MBR membrane tank provided by this utility model has the following beneficial effects:

[0016] The anti-clogging valve for an MBR membrane tank provided by this utility model includes a valve plate, a gate opener, a screw, and a screen. The screw is threadedly connected to the gate opener, the valve plate is connected to the bottom end of the screw, and the screen is connected to the bottom end of the valve plate. Both the valve plate and the screen are located on the side of the inlet of the MBR membrane tank. The gate opener can drive the screw to move the valve plate and the screen vertically, so that one of the valve plate and the screen can block the inlet. When the MBR system is operating normally, the screen is positioned at the inlet to block it, thus intercepting smaller suspended solids (SS), colloidal particles, fibers, hair, and other filamentous pollutants in the wastewater, preventing them from entering the MBR membrane tank. This effectively prevents MBR membrane clogging and ensures the normal operation of the MBR system. When the MBR system stops operating, the actuator can be controlled to drive the valve plate and screen downwards, allowing the valve plate to block the inlet and prevent wastewater from entering the MBR membrane tank. Furthermore, by fixing the screen to the bottom of the valve plate, this invention is suitable for projects converting other processes to MBR technology where there is no space to install a membrane screen. Attached Figure Description

[0017] Figure 1 A cross-sectional view of the anti-blockage valve before the MBR membrane tank provided in one embodiment of this utility model.

[0018] Figure 2 This is a front view of the anti-blockage valve before the MBR membrane tank provided in one embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the guide rail structure in the anti-blockage valve before the MBR membrane tank provided in one embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of the opening and closing mechanism of the anti-blocking valve before the MBR membrane tank provided in one embodiment of the present invention.

[0021] The reference numerals in the attached figures are explained as follows:

[0022] 1-Valve plate, 101-Guide slide plate, 2-Handle hoist, 201-Mounting base, 202-Rotating handle, 203-Nut, 204-Base connecting pipe, 205-Bearing, 206-Handle base, 207-Nut mounting pipe, 208-Bearing mounting pipe, 3-Side wall, 4-Grate, 401-Grate enclosure, 402-Grate baffle, 5-Inlet hole, 6-First embedded steel plate, 601-Reserved hole, 7-Screw rod, 8-Guide rail, 801-First guide rail, 802-Second guide rail, 803-Guide groove, 9-Second embedded steel plate, 10-Mounting platform. Detailed Implementation

[0023] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a further detailed explanation of the anti-clogging valve before the MBR membrane tank proposed in this utility model. The advantages and features of this utility model will become clearer from the following description. Please refer to the accompanying drawings for a more apparent and understandable understanding of the purpose, features, and advantages of this utility model.

[0024] The core idea of ​​this utility model is to provide an anti-clogging valve before the MBR membrane tank, so as to solve the problem that existing valves cannot effectively intercept filamentous pollutants such as suspended solids (SS), colloidal particles, fibers, and hair, which leads to membrane tank blockage.

[0025] To achieve the above-mentioned goals, this utility model provides an anti-clogging valve before the MBR membrane tank. Please refer to [the relevant documentation]. Figure 1 and Figure 2 ,like Figure 1 and Figure 2 As shown, the anti-blocking valve for the MBR membrane tank provided by this utility model includes: a valve plate 1, a gate opener 2, a screw 7, and a grid 4. The screw 7 is threadedly connected to the gate opener 2, the valve plate 1 is connected to the bottom end of the screw 7, and the grid 4 is connected to the bottom end of the valve plate 1. The valve plate 1 and the grid 4 are both located on the side of the inlet 5 of the MBR membrane tank. The gate opener 2 can drive the screw 7 to move the valve plate 1 and the grid 4 in the vertical direction, so that one of the valve plate 1 and the grid 4 can block the inlet 5.

[0026] Therefore, when the MBR system is operating normally, the screen 4 is located at the inlet 5 to block it. When wastewater enters the MBR membrane tank through the screen 4, the screen 4 can intercept smaller suspended solids (SS), colloidal particles, fibers, hair, and other filamentous pollutants in the wastewater, preventing them from entering the MBR membrane tank. This effectively avoids MBR membrane clogging and ensures the normal operation of the MBR system. When the MBR system stops operating, the hoist 2 can control the drive screw 7 to move the valve plate 1 and screen 4 downwards, so that the valve plate 1 can block the inlet 5, thereby preventing wastewater from entering the MBR membrane tank. In addition, by fixing the screen 4 to the bottom of the valve plate 1, this utility model can be applied to projects that convert other processes to MBR processes but do not have space to install the membrane screen 4.

[0027] Specifically, such as Figure 1 and Figure 2As shown, wastewater enters the MBR membrane tank through the inlet 5 for treatment. When the MBR membrane tank needs to be stopped, the valve plate 1 blocks and closes the inlet 5 to prevent wastewater from entering. When the MBR membrane tank is operating normally, the valve plate 1 is removed from the inlet 5, and the screen 4 blocks the inlet 5, so that the wastewater enters the MBR membrane tank after preliminary filtration by the screen 4.

[0028] Please continue to refer to this. Figure 1 ,like Figure 1 As shown, the grid 4 includes a connected grid enclosure 401 and a grid baffle 402. The grid enclosure 401 is connected to the bottom end of the valve plate 1, and the grid baffle 402 is arranged parallel to the inlet 5, effectively blocking the inlet 5. This arrangement not only facilitates the connection between the valve plate 1 and the grid 4, but also ensures that when the grid 4 moves to the position corresponding to the inlet 5, it can effectively intercept smaller suspended solids (SS), colloidal particles, fibers, hair, and other filamentous pollutants in the water, preventing them from entering the MBR membrane tank.

[0029] Furthermore, the grille 4 is a square cover structure with an opening on one side. The grille 4 includes four grille surrounds 401 and one grille baffle 402. The grille baffle 402 is a square plate. The four grille surrounds 401 are connected to the four sides of the grille baffle 402 respectively. The grille surrounds 401 and the grille baffle 402 are an integral structure, and the top grille surround 401 is connected to the bottom end of the valve plate 1. Thus, by setting the grille 4 as a square cover structure, the inlet opening 5 can be smoothly covered, thereby ensuring that the grille 4 can intercept smaller suspended solids (SS), colloidal particles, fibers, hair and other filamentous pollutants in the water when sewage enters, preventing them from entering the MBR membrane tank and effectively avoiding MBR membrane clogging.

[0030] Please continue to refer to this. Figure 4 ,like Figure 4 As shown, the gate opener 2 includes a mounting base 201 and a rotating handle 202 rotatably connected to the mounting base 201. A nut 203 is provided in the rotating handle 202, and the lead screw 7 is threadedly connected to the nut 203. Therefore, when the rotating handle 202 is rotated, the nut 203 drives the lead screw 7 to move vertically via the thread, thereby causing the valve plate 1 and the grille 4 to move vertically, so that one of the valve plate 1 and the grille 4 can block the water inlet 5.

[0031] Please continue to refer to this. Figure 4 ,like Figure 4As shown, the mounting base 201 is provided with a base connecting pipe 204 for the lead screw 7 to pass through. The end of the mounting base 201 near the rotating handle 202 is provided with a bearing mounting pipe 208 that communicates with the base connecting pipe 204. A bearing 205 is sleeved on the bearing mounting pipe 208, and the bearing 205 is connected to the rotating handle 202. Therefore, this arrangement allows for a rotational connection between the rotating handle 202 and the mounting base 201, ensuring that the lead screw 7 can be smoothly driven to move the valve plate 1 and the grille 4 vertically by rotating the rotating handle 202.

[0032] like Figure 4 As shown, the rotating handle 202 includes a handle base 206 and a nut mounting tube 207 located within the handle base 206. The handle base 206 is connected to the bearing 205, and the nut mounting tube 207 communicates with the bearing mounting tube 208. The nut 203 is fixedly connected in the nut mounting tube 207. Therefore, this arrangement facilitates the installation and fixation of the nut 203 and the bearing 205.

[0033] Furthermore, the inner ring of the bearing 205 is fitted onto the bearing mounting tube 208, and the bearing 205 is fixedly connected to the bearing mounting tube 208; the outer ring of the bearing 205 is fixedly connected to the handle base 206; the lead screw 7 passes sequentially through the top of the MBR membrane tank, the base connecting tube 204, the bearing mounting tube 208 and the nut mounting tube 207, and extends out from the rotating handle 202.

[0034] Please continue to refer to this. Figure 1 ,like Figure 1 As shown, a first embedded steel plate 6 is provided on the top of the MBR membrane tank, and the gate hoist 2 is connected to the first embedded steel plate 6. The first embedded steel plate 6 has a reserved hole 601, and the top end of the lead screw 7 passes through the reserved hole 601 to be threadedly connected to the gate hoist 2. Thus, this arrangement can provide an installation position for the gate hoist 2 and provide stable support.

[0035] Furthermore, such as Figure 1As shown, a concrete mounting platform 10 extends from the top of one side of the sidewall 3 of the MBR membrane tank; the first embedded steel plate 6 is fixedly connected to the top surface of the mounting platform 10; the reserved hole 601 is a through hole, penetrating the first embedded steel plate 6 and the mounting platform 10, and the reserved hole 601 provides a vertical movement path for the lead screw 7; the bottom of the mounting base 201 is fixedly connected to the top surface of the first embedded steel plate 6. Specifically, the mounting base 201 and the first embedded steel plate 6 can be fixedly connected by welding, or a flange with bolt holes can be welded to the mounting base 201, and threaded holes can be provided on the first embedded steel plate 6, thereby fixing the flange to the first embedded steel plate 6 with bolts.

[0036] Please continue to refer to this. Figure 2 ,like Figure 2 As shown, the side wall 3 of the MBR membrane tank is provided with a guide rail 8 arranged in the vertical direction, and the valve plate 1 is slidably connected to the guide rail 8. Thus, the guide rail 8 can limit and guide the valve plate 1, thereby ensuring that the valve plate 1 can always move in the vertical direction.

[0037] Furthermore, such as Figure 2 As shown, the guide rail 8 includes a first guide rail 801 and a second guide rail 802. Both the first guide rail 801 and the second guide rail 802 are provided with guide grooves 803. Guide slide plates 101 are provided on both sides of the valve plate 1, and the guide slide plates 101 are slidably connected in the guide grooves 803. Therefore, this arrangement can effectively improve the limiting and guiding effect of the guide rail 8 on the valve plate 1, further ensuring that the valve plate 1 can always move in the vertical direction.

[0038] Specifically, the first guide rail 801 and the second guide rail 802 are both arranged in a vertical direction; the first guide rail 801 is provided with a guide groove 803 on the side near the valve plate 1; the second guide rail 802 is provided with a guide groove 803 on the side near the valve plate 1; the valve plate 1 is provided with a guide slide plate 101 on the side near the first guide rail 801 and the side near the second guide rail 802; the guide slide plate 101 is an integral structure with the valve plate 1; the guide slide plate 101 extends into the guide groove 803, thereby ensuring that the valve plate 1 moves vertically along the guide groove 803 of the first guide rail 801 and the second guide rail 802.

[0039] Please continue to refer to this. Figure 2 ,like Figure 2As shown, a second embedded steel plate 9 is provided on the side wall 3 of the MBR membrane tank, and the guide rail 8 is fixedly connected to the second embedded steel plate 9. Therefore, the second embedded steel plate 9 provides a stable installation position for the guide rail 8, making it easier to install and fix the guide rail 8.

[0040] Specifically, two second embedded steel plates 9 arranged vertically are fixedly connected to the side wall 3 of the MBR membrane tank; the guide rail 8 and the second embedded steel plate 9 can be fixedly connected by welding, or a flange with bolt holes can be welded on the guide rail 8 and threaded holes can be provided on the second embedded steel plate 9, so that the guide rail 8 and the second embedded steel plate 9 can be fixedly connected by bolts.

[0041] Preferably, both the valve plate 1 and the grille 4 are made of stainless steel. Because stainless steel possesses excellent corrosion resistance and wear resistance, it can adapt to the complex water quality environment upstream of the MBR membrane tank. Therefore, by using stainless steel valve plate 1 and grille 4, the service life of the anti-clogging valve upstream of the MBR membrane tank provided by this invention can be effectively extended, reducing maintenance frequency and costs.

[0042] Furthermore, the mesh size of the grid 4 is less than or equal to 1 mm. Therefore, by setting the mesh size of the grid 4 to less than or equal to 1 mm, filamentous pollutants in the water can be effectively intercepted, preventing these pollutants from entering the membrane tank and causing MBR membrane blockage. This ensures the filtration efficiency and stable operation of the membrane module, while reducing the cleaning frequency and replacement cost of the membrane module, thereby improving the operational stability and treatment efficiency of the entire water treatment system.

[0043] In summary, compared with the prior art, the anti-clogging valve before the MBR membrane tank provided by this utility model has the following beneficial effects:

[0044] By employing the anti-clogging valve before the MBR membrane tank provided by this invention, the screen 4 is positioned at the inlet 5 to block the inlet 5 during normal operation of the MBR system. This screen 4 intercepts smaller suspended solids (SS), colloidal particles, fibers, hair, and other filamentous pollutants in the wastewater, preventing them from entering the MBR membrane tank and effectively avoiding membrane clogging, thus ensuring the normal operation of the MBR system. When the MBR system stops operating, the actuator 2 drives the screw 7 to move the valve plate 1 and screen 4 downwards, allowing the valve plate 1 to block the inlet 5 and prevent wastewater from entering the MBR membrane tank. Furthermore, by fixing the screen 4 to the bottom of the valve plate 1, this invention is suitable for projects converting other processes to MBR processes where there is no space to install the membrane screen 4.

[0045] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the present utility model.

Claims

1. An anti-clogging valve before the MBR membrane tank, characterized in that, include: The valve plate, the hoist, the lead screw, and the grille are provided. The lead screw is threadedly connected to the hoist, the valve plate is connected to the bottom end of the lead screw, and the grille is connected to the bottom end of the valve plate. Both the valve plate and the grid are located on the side of the inlet of the MBR membrane tank. The hoist can drive the screw to move the valve plate and the grid in the vertical direction, so that one of the valve plate and the grid can block the inlet.

2. The anti-clogging valve before the MBR membrane tank as described in claim 1, characterized in that, The grille includes a connected grille enclosure and a grille baffle. The grille enclosure is connected to the bottom end of the valve plate, and the grille baffle is arranged parallel to the water inlet. The grille baffle can cover the water inlet.

3. The anti-clogging valve before the MBR membrane tank as described in claim 1, characterized in that, The gate opener includes a mounting base and a rotating handle rotatably connected to the mounting base. The rotating handle has a nut, and the lead screw is threadedly connected to the nut.

4. The anti-clogging valve before the MBR membrane tank as described in claim 3, characterized in that, The mounting base is provided with a base connecting tube for the lead screw to pass through. The end of the mounting base near the rotating handle is provided with a bearing mounting tube that communicates with the base connecting tube. A bearing is sleeved on the bearing mounting tube and the bearing is connected to the rotating handle.

5. The anti-clogging valve before the MBR membrane tank as described in claim 4, characterized in that, The rotating handle includes a handle base and a nut mounting tube located inside the handle base. The handle base is connected to the bearing, the nut mounting tube communicates with the bearing mounting tube, and the nut is fixedly connected in the nut mounting tube.

6. The anti-clogging valve before the MBR membrane tank as described in claim 1, characterized in that, The top of the MBR membrane tank is provided with a first embedded steel plate, and the gate hoist is connected to the first embedded steel plate. The first embedded steel plate is provided with a reserved hole, and the top end of the screw rod passes through the reserved hole to be threadedly connected to the gate hoist.

7. The anti-clogging valve before the MBR membrane tank as described in claim 1, characterized in that, The side wall of the MBR membrane tank is provided with guide rails arranged in a vertical direction, and the valve plate is slidably connected to the guide rails.

8. The anti-clogging valve before the MBR membrane tank as described in claim 7, characterized in that, The guide rail includes a first guide rail and a second guide rail. Both the first guide rail and the second guide rail are provided with guide grooves. Both sides of the valve plate are provided with guide slide plates, which are slidably connected in the guide grooves.

9. The anti-clogging valve before the MBR membrane tank as described in claim 7, characterized in that, The side wall of the MBR membrane tank is provided with a second embedded steel plate, and the guide rail is fixedly connected to the second embedded steel plate.

10. The anti-clogging valve before the MBR membrane tank as described in claim 1, characterized in that, Both the valve plate and the grille are made of stainless steel, and the grille gap is less than or equal to 1 mm.

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