A kind of sludge storage tank impurity filtering device

Abstract

The utility model relates to the field of sewage treatment discloses a kind of sludge storage pool impurity filtering devices, including support, filter screen and drive structure, the support is installed in the sludge water inlet both sides of sludge storage pool;The filter screen can be slidably connected on the support, and located the sludge water inlet lower end of sludge storage pool, in working condition, sludge enters into sludge storage pool again after passing the filter screen;The drive structure drives the filter screen to slide up and down.The utility model has the beneficial effect that, set up filter screen and filter out the flexible fiber etc. that are mixed in sludge, and drive the filter screen to slide up and down by drive structure, it is convenient for worker to clean flexible fiber on filter screen, drive structure does not need to work continuously, replace breaker and break flexible fiber, reduce operating cost low.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment, specifically to a sludge storage tank impurity filtration device. Background Technology

[0002] Sludge storage tanks are important structures in the wastewater treatment process. They are mainly used to temporarily store sludge generated during wastewater pretreatment or biochemical treatment for subsequent sludge thickening, dewatering, stabilization, or disposal.

[0003] Filtration of impurities in sludge storage tanks is a crucial step in ensuring the normal operation of subsequent sludge treatment equipment (such as dewatering machines and digesters). Currently, large-volume and small-particle impurities in sludge storage tanks are filtered through bar screens, and residual flexible impurities such as fibers are crushed by crushers. However, the crushers have a large workload, consume a lot of electricity, and have high operating costs. Utility Model Content

[0004] The technical problem this invention aims to solve is to remove flexible impurities such as fibers remaining in mud and water using a crusher. However, crushers have a large workload, consume a lot of electricity, and have high operating costs. The purpose is to provide a mud storage tank impurity filtration device that uses a filter screen to remove flexible fibers trapped in the mud and water. A drive structure moves the filter screen up and down, making it easy for workers to clean the flexible fibers. The drive structure does not need to operate continuously, thus replacing the need for a crusher to grind the flexible fibers and reducing operating costs.

[0005] This utility model is achieved through the following technical solution:

[0006] A sludge storage tank impurity filtration device includes a support frame, a filter screen, and a drive structure. The support frame is installed on both sides of the sludge-water inlet of the sludge storage tank. The filter screen is slidably connected to the support frame and located at the lower end of the sludge-water inlet of the sludge storage tank. In operation, the sludge-water passes through the filter screen before entering the sludge storage tank. The drive structure drives the filter screen to slide up and down.

[0007] The beneficial effects of this utility model are that by installing the bracket on both sides of the mud-water inlet of the mud storage tank, and connecting the filter screen slidably up and down to the bracket and located at the lower end of the mud-water inlet of the mud storage tank, it is convenient for the mud and water to enter the mud storage tank to pass through the filter screen first during operation. The filter screen filters out flexible fibers and other materials mixed in the mud and water. After a certain amount of flexible fibers remain on the filter screen, the drive structure drives the filter screen to slide upward, making it convenient for workers to clean the flexible fibers on the filter screen. After cleaning the fibers, the drive structure moves the filter screen downward again. The drive structure does not need to work continuously, replacing the need to crush the flexible fibers with a crusher, thus reducing operating costs.

[0008] In some embodiments, the filter screen comprises several layers, with each layer having the same mesh size, and the mesh size of the multiple layers gradually decreasing from top to bottom. By setting the filter screen to multiple layers and gradually decreasing the mesh size from the top to the bottom layer, the upper layers filter larger fibers, while the lower layers filter smaller fibers, thus improving the filtration efficiency of muddy water.

[0009] In some embodiments, the system further includes two pulleys. The bracket is n-shaped, and each of the two vertical rods of the bracket is provided with a groove. The two ends of the filter screen are respectively hinged to the corresponding pulleys, and the pulleys can slide along the corresponding grooves. By hinged to the pulleys at both ends of the filter screen, the sliding cooperation between the pulleys and the grooves is facilitated, reducing friction and limiting the trajectory of the filter screen when it moves up and down, thus ensuring balance when the filter screen is raised or lowered.

[0010] In some embodiments, a connecting rope is further included, with both ends of the connecting rope hinged to the centers of the corresponding pulleys. The ends of the filter screen are connected to the corresponding ends of the connecting rope via a pull rope. By using the connecting rope to connect the two pulleys and to connect the ends of the filter screen to the connecting rope, the filter screen can be easily lifted.

[0011] In some embodiments, each connecting rope is connected to at least three pull ropes at both ends, and the end of each pull rope away from the connecting rope is connected to the middle and two corners of both ends of the filter screen, respectively. By setting the pull ropes, a pulling force is applied to three points (both ends and the middle) at both ends of the filter screen when it is pulled up, so that the filter screen is subjected to balanced forces, thereby ensuring the stability of the filter screen when it is raised and lowered.

[0012] In some embodiments, the drive structure includes two lead screw motors, which are respectively connected to both sides of the bracket. The lead screw nuts of the two lead screw motors are respectively connected to both ends of the connecting rope via a first connector. By setting the drive structure as lead screw motors, it is convenient for the lead screw motors to drive the lead screw nuts to move up and down along the motor lead screw when they are working, thereby realizing the up and down movement of the filter screen.

[0013] In some embodiments, the first connector includes a first pull plate and a lifting rope. The first pull plate is L-shaped, with one end connected to the lead screw nut and the other end connected to the lifting rope. The end of the lifting rope away from the first pull plate is connected to the connecting rope. By setting the first pull plate to an L-shape, it is easier to provide vertical tension to the connecting rope through the first pull plate and the lifting rope, thereby ensuring the stability of the filter screen during lifting.

[0014] In some embodiments, the drive structure includes two cylinders, which are respectively connected to both sides of the bracket. The free ends of the piston rods of the two cylinders are respectively connected to both ends of the connecting rope via second connectors. By setting the drive structure as cylinders, it is convenient to drive the filter screen to rise and fall via the cylinders.

[0015] In some embodiments, the second connector includes a second pull plate, a sleeve, and a lifting rope. The sleeve is fixedly sleeved on the corresponding free end of the piston rod. The second pull plate is elongated and plate-shaped, with one end fixedly connected to the sleeve and the other end connected to the lifting rope. The end of the lifting rope away from the second pull plate is connected to the connecting rope. By fixing the sleeve to the corresponding free end of the piston rod, the balance of force on the free end of the piston rod is improved. Furthermore, by setting the second pull plate and the lifting rope, the connecting rope is subjected to vertical force, which facilitates the lifting and lowering of the filter screen when the piston rod extends or retracts.

[0016] In some embodiments, a control cabinet is further included, which is connected to the top of the bracket and electrically connected to the drive structure. The top of the bracket has a through hole for the lifting rope to pass through. By electrically connecting the control cabinet to the drive structure, it is convenient to control the lead screw motor or cylinder via the control cabinet, ensuring that two motors or two cylinders work simultaneously to apply force synchronously to both ends of the filter screen, thus ensuring the stability of the filter screen during lifting. The through hole at the top of the bracket for the lifting rope to pass through ensures that the lifting rope is located at the upper centerline of the filter screen, guaranteeing the balance of forces on the filter screen during lifting.

[0017] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0018] 1. A filter screen is installed to filter out flexible fibers and other contaminants mixed in with mud and water. The filter screen is driven to slide up and down by a drive structure, which makes it easy for workers to clean the flexible fibers on the filter screen. The drive structure does not need to work continuously, which replaces the crushing of flexible fibers by a crusher, thus reducing operating costs.

[0019] 2. By hinged to pulleys at both ends of the filter screen, the sliding contact between the pulleys and the groove facilitates the reduction of friction and limits the trajectory of the filter screen when it moves up and down, thus ensuring the balance of the filter screen when it is raised and lowered. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a structural diagram of the present invention;

[0022] Figure 2 This is a structural diagram of the present invention;

[0023] Figure 3 This utility model Figure 1 A magnified view of section K in the middle.

[0024] The attached diagram shows the markings and corresponding component names:

[0025] Filter screen 10, pull rope 11, lifting rope 12, bracket 20, slide 21, pulley 22, first pull plate 23, through hole 24, connecting rope 25, lead screw motor 30, lead screw nut 31, cylinder 40, second pull plate 41, sleeve 42, control cabinet 50. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0027] Throughout this specification, references to "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "an embodiment," "an example," "an example," or "an example" appearing in various places throughout the specification do not necessarily refer to the same embodiment or example. Furthermore, specific features, structures, or characteristics can be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. Moreover, those skilled in the art will understand that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] In the description of this utility model, the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not 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 limiting the scope of protection of this utility model.

[0029] The terms "first," "second," etc., used in this utility model are merely for clarity of description and are not intended to limit any order or emphasize importance. Furthermore, the term "connection" as used herein, unless otherwise specified, can refer to a direct connection or an indirect connection via other components.

[0030] Example 1

[0031] like Figure 1 and Figure 3 As shown in the figure, this embodiment 1 provides a sludge storage tank impurity filtration device, including a support 20, a filter screen 10 and a drive structure. The support 20 is installed on both sides of the sludge inlet of the sludge storage tank. The filter screen 10 is slidably connected to the support 20 and located at the lower end of the sludge inlet of the sludge storage tank. In the working state, the sludge and water enter the sludge storage tank after passing through the filter screen 10. The drive structure drives the filter screen 10 to slide up and down.

[0032] See Figure 1 The filter screen 10 comprises several layers, with each layer having the same mesh size. The mesh size of the multiple layers of filter screen 10 gradually decreases from top to bottom. By setting the filter screen 10 to multiple layers and gradually decreasing the mesh size from the top layer to the bottom layer, the upper layer filters out larger fibers, while the lower layer filters out smaller fibers, thus improving the filtration effect of muddy water.

[0033] See Figure 1 and Figure 3 It also includes two pulleys 22. The bracket 20 is n-shaped, and each of the two vertical rods of the bracket 20 is provided with a sliding groove 21. The two ends of the filter screen 10 are respectively hinged to the corresponding pulleys 22, and the pulleys 22 can slide along the corresponding sliding grooves 21. By hinged to the two ends of the filter screen 10 with the pulleys 22, it is convenient for the pulleys 22 and the sliding grooves 21 to slide and cooperate, reducing friction and limiting the trajectory of the filter screen 10 when it moves up and down, so as to ensure the balance of the filter screen 10 when it rises and falls.

[0034] See Figure 1 It also includes a connecting rope 25, the two ends of which are respectively hinged to the center of the corresponding pulley 22. The two ends of the filter screen 10 are connected to the corresponding ends of the connecting rope 25 via a pull rope 11. By setting the connecting rope 25 to connect the two pulleys 22 and to connect the two ends of the filter screen 10 to the connecting rope 25, it is possible to lift the filter screen 10.

[0035] See Figure 1Each of the connecting ropes 25 has at least three pull ropes 11 connected to both ends. The end of each pull rope 11 away from the connecting rope 25 is connected to the middle and two corners of both ends of the filter screen 10, respectively. By setting the pull ropes 11, a pulling force is applied to three points (both ends and the middle) at both ends of the filter screen 10 when it is pulled up, so that the filter screen 10 is subjected to balanced forces, thereby ensuring the stability of the filter screen 10 when it is raised and lowered.

[0036] See Figure 1 The drive structure includes two lead screw motors 30, which are respectively connected to both sides of the bracket 20. The lead screw nuts 31 of the two lead screw motors 30 are respectively connected to both ends of the connecting rope 25 through a first connector. By setting the drive structure as lead screw motors 30, it is convenient for the lead screw motors 30 to drive the lead screw nuts 31 to move up and down along the motor lead screw when they are working, thereby realizing the up and down movement of the filter screen 10.

[0037] See Figure 1 The first connecting member includes a first pull plate 23 and a lifting rope 12. The first pull plate 23 is L-shaped, with one end connected to the lead screw nut 31 and the other end connected to the lifting rope 12. The end of the lifting rope 12 away from the first pull plate 23 is connected to the connecting rope 25. By setting the first pull plate 23 to an L-shape, it is easier to provide a vertical tension on the connecting rope 25 through the first pull plate 23 and the lifting rope 12, thereby ensuring the stability of the filter screen 10 during lifting.

[0038] See Figure 1 The system also includes a control cabinet 50, which is connected to the top of the bracket 20 and electrically connected to the lead screw motor 30. The top of the bracket 20 has a through hole 24 for the lifting rope 12 to pass through. By electrically connecting the control cabinet 50 to the lead screw motor 30, it is convenient to control the operation of the lead screw motor 30 through the control cabinet 50, ensuring that both motors work simultaneously and apply force synchronously to both ends of the filter screen 10, thus ensuring the stability of the filter screen 10 during lifting. The through hole 24 on the top of the bracket 20 allows the lifting rope 12 to be positioned at the upper end of the center line of the filter screen 10, ensuring the balance of force on the filter screen 10 during lifting.

[0039] Example 2

[0040] See Figure 2The difference between Embodiment 2 and Embodiment 1 is that the driving structure includes two cylinders 40, which are respectively connected to both sides of the bracket 20. The free ends of the piston rods of the two cylinders 40 are respectively connected to both ends of the connecting rope 25 through a second connector. By setting the driving structure as cylinders 40, it is convenient to drive the filter screen 10 to rise and fall through the cylinders 40.

[0041] See Figure 2 The second connecting component includes a second pull plate 41, a sleeve 42, and a lifting rope 12. The sleeve 42 is fixedly sleeved on the corresponding free end of the piston rod. The second pull plate 41 is elongated and plate-shaped. One end of the second pull plate 41 is fixedly connected to the sleeve 42, and the other end is connected to the lifting rope 12. The end of the lifting rope 12 away from the second pull plate 41 is connected to the connecting rope 25. By fixing the sleeve 42 on the corresponding free end of the piston rod, the balance of force on the free end of the piston rod is improved. Furthermore, by setting the second pull plate 41 and the lifting rope 12, the connecting rope 25 is subjected to vertical force, so as to drive the filter screen 10 to rise and fall when the piston rod extends and retracts.

[0042] Specifically, an internal thread can be provided on the inner side of the sleeve 42, and an external thread can be provided on the free end of the piston rod of the cylinder 40, thereby connecting the sleeve 42 and the free end of the piston rod through the thread. Alternatively, a countersunk hole can be provided on the free end of the cylinder 40, and a through hole 24 can be provided on the sleeve 42. The locating pin passes through the through hole 24 in sequence and is riveted to the countersunk hole.

[0043] See Figure 2 The system also includes a control cabinet 50, which is connected to the top of the bracket 20 and electrically connected to the cylinder 40. The top of the bracket 20 has a through hole 24 for the lifting rope 12 to pass through. By electrically connecting the control cabinet 50 to the cylinder 40, the operation of the cylinder 40 can be easily controlled via the control cabinet 50, ensuring that both cylinders 40 operate simultaneously and apply force synchronously to both ends of the filter screen 10. This ensures the stability of the filter screen 10 during lifting and lowering. The through hole 24 on the top of the bracket 20 allows the lifting rope 12 to be positioned at the upper end of the center line of the filter screen 10, ensuring the balance of force on the filter screen 10 during lifting and lowering.

[0044] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A sludge lagoon impurity filtering device, characterized by, include: A support frame is installed on both sides of the mud-water inlet of the mud storage tank; The filter screen is slidably connected to the support and located at the lower end of the mud-water inlet of the mud storage tank. In the working state, the mud and water pass through the filter screen before entering the mud storage tank. The driving structure, in the working state, drives the filter screen to slide up and down.

2. The lagoon effluent filtration apparatus of claim 1, wherein, The filter screen comprises several layers, with the mesh size of the filter screen in the same layer being the same, and the mesh size of the filter screen in multiple layers gradually decreasing from top to bottom.

3. The lagoon effluent filtration apparatus of claim 2, wherein, It also includes two pulleys. The bracket is n-shaped. Each of the two vertical rods of the bracket is provided with a sliding groove. The two ends of the filter screen are respectively hinged to the corresponding pulleys. The pulleys can slide along the corresponding sliding grooves.

4. The lagoon effluent filtration apparatus of claim 3, wherein, It also includes a connecting rope, the two ends of which are respectively hinged to the center of the corresponding pulley, and the two ends of the filter screen are connected to the corresponding ends of the connecting rope by a pull rope.

5. The lagoon effluent filtration apparatus of claim 4, wherein, Each of the connecting ropes has at least three pull ropes connected to both ends, and the end of each pull rope away from the connecting rope is connected to the middle and two corners of both ends of the filter screen, respectively.

6. The lagoon effluent filtration apparatus of claim 4, wherein, The drive structure includes two lead screw motors, which are respectively connected to both sides of the bracket. The lead screw nuts of the two lead screw motors are respectively connected to both ends of the connecting rope through a first connector.

7. The lagoon effluent filtration apparatus of claim 6, wherein, The first connecting member includes a first pull plate and a lifting rope. The first pull plate is L-shaped. One end of the first pull plate is connected to the lead screw nut, and the other end is connected to the lifting rope. The end of the lifting rope away from the first pull plate is connected to the connecting rope.

8. The lagoon effluent filtration apparatus of claim 6, wherein, The drive structure includes two cylinders, which are respectively connected to both sides of the bracket. The free ends of the piston rods of the two cylinders are respectively connected to the two ends of the connecting rope through a second connector.

9. The lagoon effluent filtration apparatus of claim 8, wherein, The second connecting member includes a second pull plate, a sleeve, and a lifting rope. The sleeve is fixedly sleeved on the corresponding free end of the piston rod. The second pull plate is in the shape of a long strip. One end of the second pull plate is fixedly connected to the sleeve, and the other end is connected to the lifting rope. The end of the lifting rope away from the second pull plate is connected to the connecting rope.

10. The lagoon effluent filtration apparatus of claim 8, wherein, It also includes a control cabinet, which is connected to the top of the bracket and electrically connected to the drive structure. The top of the bracket is provided with a through hole for the lifting rope to pass through.

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