A filter device for sludge water of a waterworks

Abstract

The present application relates to a kind of sewage treatment plant sludge water filtering device, including filter assembly, scraper assembly and conveying assembly, filter assembly includes the filter screen being arranged at the water outlet of sedimentation tank and the drive assembly that can drive filter screen back and forth movement between the water outlet of sedimentation tank and the position of removing dirt;Scraper assembly includes scraper, when filter screen is in the position of removing dirt, scraper is inlaid with the feed side of filter screen and can move relative to filter screen;Conveying assembly includes the first conveyor belt below scraper, and the first conveyor belt is configured to make sundries move away from conveying surface to sundries collection tank.The filtering device can intercept sundries in water, and the sundries being intercepted can enter conveying assembly under the cooperation of filter assembly and scraper assembly, and be sent to sundries collection tank by conveying assembly, reduce the risk of filtering device blockage and sundries residence time in water.In addition, sundries is sent to special collection tank, and it is more convenient to handle.

Description

Technical Field

[0001] This invention relates to a sludge filtration device for waterworks. Background Technology

[0002] In tap water production, raw water often needs to enter a sedimentation tank to remove suspended solids, and then enter an equalization tank to adjust the water quality before finally obtaining clean tap water. Current technologies often require filtration of the water in the sedimentation tank. However, with prolonged use, existing filtration devices accumulate more and more impurities on the filter's retention side, easily clogging the filter. Furthermore, the longer impurities remain in the water, the more microorganisms will grow, increasing the difficulty of water treatment. Summary of the Invention

[0003] The purpose of this invention is to provide a sludge filtration device for waterworks.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] A sludge filtration device for a waterworks includes a filtration assembly, which includes a filter screen disposed at the outlet of a sedimentation tank and a drive assembly capable of driving the filter screen to move back and forth between the outlet of the sedimentation tank and a sludge removal position, wherein the sludge removal position is located outside the sedimentation tank.

[0006] A scraper assembly, comprising a scraper, wherein when the filter screen is in the decontamination position, the scraper is in contact with the feed side of the filter screen and can move relative to the filter screen to remove the debris trapped on the filter screen;

[0007] A conveying assembly includes a first conveyor belt located below the scraper, the first conveyor belt having a conveying surface for receiving the debris, the first conveyor belt being configured to move the debris away from the conveying surface to a debris collection pool.

[0008] Preferably, the drive assembly includes a first drive member and a first transmission member, wherein the first transmission member is connected between the first drive member and the filter screen, and is controlled by the first drive member and moves the filter screen along a first direction;

[0009] The drive assembly further includes a second drive member and a second transmission member. The second transmission member is connected between the first drive member and / or the first transmission member and the second transmission member, and is controlled by the second drive member and moves the first drive member and / or the first transmission member along a second direction.

[0010] More preferably, the first direction is the up-down direction, and the second direction is the front-back direction.

[0011] In some preferred embodiments, the first driving member is a motor, and the first transmission member includes a second conveyor belt, a plurality of rollers connected to the second transmission belt, and a connecting rod. One roller is connected to the first driving member and controlled by the first driving member to drive the second conveyor belt to move; another roller is connected to the second conveyor belt and rotates under the drive of the second conveyor belt, and the other roller is threadedly connected to the connecting rod; the connecting rod is connected to the filter screen and moves along the first direction under the drive of the other roller.

[0012] In some preferred embodiments, the second driving member includes a telescopic member controlled by a power source and capable of extending and retracting along a second direction, the second transmission member is a carrier connected to the second driving member, the second transmission member is capable of moving along the second direction under the drive of the second driving member, and the first driving member and the first transmission member are partially or entirely disposed on the second transmission member.

[0013] More preferably, the second driving component is a telescopic cylinder.

[0014] Preferably, the filtration device further includes a frame mounted on the sedimentation tank, the scraper is rotatably connected to the frame, and the scraper assembly further includes a third driving member disposed on the frame and connected to the scraper for driving the scraper to move relative to the filter screen.

[0015] More preferably, the third driving component is a telescopic cylinder.

[0016] Preferably, the rotation axis of the scraper is perpendicular to the plane where the filter screen is located.

[0017] Preferably, the drive assembly is mounted on the frame.

[0018] Preferably, the conveying assembly further includes a fourth driving component for driving the first conveyor belt to move, and multiple support pillars disposed between the sedimentation tank and the debris collection tank, the support pillars being connected to the conveying assembly for supporting the conveying assembly.

[0019] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0020] The filtration device of this invention, with its filter assembly, scraper assembly, and conveying assembly, can intercept impurities in the water. The intercepted impurities, working in conjunction with the filter and scraper assemblies, enter the conveying assembly and are then transported to the impurity collection tank. This reduces the risk of clogging the filtration device and the residence time of impurities in the water. Furthermore, the dedicated collection tank makes disposal more convenient.

[0021] The filtration device of the present invention has a high degree of automation and good application prospects. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a sludge filtration device for a waterworks according to the present invention, wherein the filter screen is in the dirt removal position;

[0023] Figure 2 for Figure 1 Enlarged view at point C;

[0024] Figure 3 This is a schematic diagram of a sludge filtration device for a waterworks according to the present invention, wherein the filter screen is located at the outlet of the sedimentation tank; in the above figure: 1, filter assembly; 11, filter screen; 12, drive assembly; 121, first drive component; 122, second conveyor belt; 123, first roller; 124, second roller; 125, connecting rod; 126, carrier;

[0025] 21. Scraper; 22. Third drive component;

[0026] 3. Conveying assembly; 31. First conveyor belt; 32. Support column;

[0027] 4. Rack;

[0028] 5. Sedimentation tank outlet;

[0029] A. Sedimentation tank; B. Debris collection tank. Detailed Implementation

[0030] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the embodiments of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0031] In the description of the embodiments of the present invention, it should be understood that the terms "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown are as follows: the drive component 12 is positioned above, the sedimentation tank outlet 5 is positioned below, the sedimentation tank A is positioned to the left, and the debris collection tank B is positioned to the right. These orientations or positional relationships are merely for the purpose of describing the embodiments of the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention.

[0032] In the description of the embodiments of the present invention, "multiple" means two or more, unless otherwise explicitly specified.

[0033] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] To simplify the disclosure of embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed. The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0035] Example 1

[0036] A sludge filtration device for a waterworks, see [link / reference] Figure 1 and Figure 3 It includes a filter assembly 1, a scraper assembly, a conveying assembly 3, and a frame 4 mounted on the sedimentation tank A.

[0037] The filter assembly 1 includes a filter screen 11 and a drive assembly 12.

[0038] A filter screen 11 is installed at the outlet 5 of the sedimentation tank to filter the water in the sedimentation tank A. The filter screen 11 is covered with filter holes so that when water flows through the filter screen 11, only water passes through the filter holes while impurities are trapped on the trap side. In order to facilitate the removal of impurities on the trap side, the trap side is roughly flat.

[0039] The drive assembly 12 can drive the filter screen 11 to move back and forth between the sedimentation tank outlet 5 and the cleaning position. The cleaning position is located outside the sedimentation tank A, which facilitates the removal of debris from the filter screen 11. In this embodiment, the cleaning position is located above the sedimentation tank A. To prevent water in the sedimentation tank A from flowing out unfiltered during the process of the filter screen 11 moving from the sedimentation tank outlet 5 to the cleaning position or while it is in the cleaning position, an opening and closing device is provided on the sedimentation tank outlet 5. When the filter screen 11 moves from the sedimentation tank outlet 5 to the cleaning position or while it is in the cleaning position, the opening and closing device is closed, so that the sedimentation tank outlet 5 is closed; when the filter screen 11 is in the cleaning position, the closing device is opened, so that the sedimentation tank outlet 5 is open. The opening and closing device includes, but is not limited to, valves or baffles.

[0040] Further, the drive assembly 12 includes a first drive member 121, a first transmission member, a second drive member, and a second transmission member. The first transmission member is connected between the first drive member 121 and the filter screen 11, and is controlled by the first drive member 121, moving the filter screen 11 along a first direction. The second transmission member is connected between the first drive member 121 and / or the first transmission member and the second transmission member, and is controlled by the second drive member, moving the first drive member 121 and / or the first transmission member along a second direction. In this embodiment, the first direction is the up-down direction, and the second direction is the front-back direction. By moving the filter screen 11 a certain distance in the first direction and then a certain distance in the second direction, the filter screen 11 can be moved from the sedimentation tank outlet 5 to the decontamination position.

[0041] Specifically, see Figure 2 The first driving component 121 is a motor. The first transmission component includes a second conveyor belt 122, multiple rollers connected to the second transmission belt, and a connecting rod 125. In this embodiment, there are two rollers, hereinafter referred to as the first roller 123 and the second roller 124. The first roller 123 and the second roller 124 are arranged sequentially in the left-right direction, and the second conveyor belt 122 is disposed on the first roller 123 and the second roller 124. The first roller 123 is fixedly connected to the first driving component 121 and controlled by the first driving component 121. Under the drive of the first driving component 121, the first roller 123 rotates around a first direction and drives the second conveyor belt 122 to slide left and right. The second roller 124 is connected to the second conveyor belt 122 and rotates around the first direction under the drive of the second conveyor belt 122. The second roller 124 is threadedly connected to the connecting rod 125. The connecting rod 125 is connected to the filter screen 11 and moves along the first direction under the drive of the second roller 124. In this way, the filter screen 11 can be moved along the first direction.

[0042] The second driving component includes a telescopic component (not shown in the figure) controlled by a power source and capable of extending and retracting along a second direction. The second driving component is preferably a telescopic cylinder, which is fixedly connected to the frame 4. The second transmission component is a carrier 126 connected to the second driving component. Driven by the second driving component, the second transmission component can move along the second direction. The first driving component 121 and the first transmission component are partially or entirely disposed on the second transmission component. In this embodiment, the first driving component 121, the first roller 123, and the second roller 124 are fixedly connected to the carrier 126, which is slidably disposed on the frame 4. The sliding method includes, but is not limited to, a slide rail connection.

[0043] The scraper assembly includes a scraper 21 rotatably connected to the frame 4 in a third direction, and a third drive member 22 fixedly connected to the frame 4. When the filter screen 11 is in the decontamination position, the scraper 21 is in contact with the feed side of the filter screen 11, and the third direction is perpendicular to the plane containing the filter screen 11. The third drive member 22 is connected to the scraper 21 and drives the scraper 21 to move relative to the filter screen 11, thereby scraping the feed side of the filter screen 11 to remove impurities trapped on the filter screen 11. In this embodiment, the third direction is the front-to-back direction, and the third drive member 22 is a telescopic cylinder.

[0044] The conveying assembly 3 includes a first conveyor belt 31 located below the scraper 21 to facilitate the removal of debris into the first conveyor belt 31. The first conveyor belt 31 has a conveying surface for receiving debris and is configured to move debris away from the conveying surface to the debris collection pool B.

[0045] Furthermore, the conveying assembly 3 also includes a fourth driving member (not shown in the figure) for driving the first conveyor belt 31, and multiple support pillars 32 disposed between the sedimentation tank A and the debris collection tank B. The support pillars 32 are connected to the conveying assembly 3 and are used to support the conveying assembly 3. The arrangement of the first conveyor belt and the fourth driving member can refer to the conveying assembly 3 in the prior art.

[0046] Working principle:

[0047] The water treatment plant sludge filtration device of the present invention has two states: filtration state and impurity removal state.

[0048] When in filtration mode, filter screen 11 is located at the outlet 5 of the sedimentation tank, used to filter the water in sedimentation tank A. After a period of time, as the amount of debris trapped by filter screen 11 increases, the motor is started. The first roller 123 rotates vertically under the drive of the motor, driving the second conveyor belt 122 to move, causing the second roller 124 to rotate vertically. This causes the connecting rod 125 to move upward, driving the filter screen 11 upward. When the filter screen 11 moves above the first conveyor belt 31, the motor is turned off. The second driving component (telescopic cylinder) drives the carrier 126 to slide in the front-back direction, moving the filter screen 11 to the impurity removal position, and the filtration device switches to impurity removal mode.

[0049] When it is in the impurity removal state, the third drive unit 22 drives the scraper 21 to rotate to remove the impurities on the filter screen 11. The impurities fall into the first conveyor belt 31 and enter the impurity collection pool B under the drive of the first conveyor belt 31.

[0050] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A sludge filtration device for a waterworks, characterized in that: The filtration device includes: A filtration assembly includes a filter screen disposed at the outlet of a sedimentation tank and a drive assembly capable of driving the filter screen to move back and forth between the outlet of the sedimentation tank and a cleaning position. The drive assembly includes a first drive member and a first transmission member. The first transmission member is connected between the first drive member and the filter screen and is controlled by the first drive member to move the filter screen along a first direction, which is a vertical direction. The drive assembly further includes a second drive member and a second transmission member. The second transmission member is connected between the first drive member and / or the first transmission member and the second transmission member, and is controlled by the second drive member to move the first drive member and / or the first transmission member along a second direction, which is a front-back direction. The cleaning position is located outside the sedimentation tank. A scraper assembly, comprising a scraper, wherein when the filter screen is in the decontamination position, the scraper is in contact with the feed side of the filter screen and can move relative to the filter screen to remove the debris trapped on the filter screen; A conveying assembly includes a first conveyor belt located below the scraper, the first conveyor belt having a conveying surface for receiving the debris, the first conveyor belt being configured to move the debris away from the conveying surface to a debris collection pool.

2. The sludge filtration device for waterworks according to claim 1, characterized in that: The first driving component is a motor, and the first transmission component includes a second conveyor belt, a plurality of rollers connected to the second transmission belt, and a connecting rod. One roller is connected to the first driving component and is controlled by the first driving component to drive the second conveyor belt to move; another roller is connected to the second conveyor belt and rotates under the drive of the second conveyor belt, and the other roller is threadedly connected to the connecting rod; the connecting rod is connected to the filter screen and moves along the first direction under the drive of the other roller.

3. The sludge filtration device for waterworks according to claim 1, characterized in that: The second driving member includes a telescopic member controlled by a power source and capable of extending and retracting along a second direction. The second transmission member is a carrier connected to the second driving member. The second transmission member can move along the second direction under the drive of the second driving member. The first driving member and the first transmission member are partially or entirely disposed on the second transmission member.

4. The sludge filtration device for waterworks according to claim 3, characterized in that: The second driving component is a telescopic cylinder.

5. The sludge filtration device for waterworks according to claim 1, characterized in that: The filtration device further includes a frame mounted on the sedimentation tank, the scraper is rotatably connected to the frame, and the scraper assembly further includes a third drive member disposed on the frame and connected to the scraper for driving the scraper to move relative to the filter screen.

6. The sludge filtration device for waterworks according to claim 5, characterized in that: The third driving component is a telescopic cylinder.

7. The sludge filtration device for waterworks according to claim 5, characterized in that: The drive assembly is mounted on the rack.

8. The sludge filtration device for waterworks according to claim 1, characterized in that: The conveying assembly further includes a fourth driving component for driving the first conveyor belt to move, and multiple support pillars disposed between the sedimentation tank and the debris collection tank, the support pillars being connected to the conveying assembly for supporting the conveying assembly.

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