Membrane curtain lifting and replacing device for MBR (membrane bioreactor) tank

Abstract

The utility model relates to an MBR (Membrane Biological Reactor) pool membrane curtain lifting and replacing device which comprises a support provided with a lifting hook and a supporting cross beam, the supporting cross beam is provided with a moving groove along the length direction, the moving groove is connected with a lifting driving mechanism, the lifting driving mechanism is provided with a lifting rod connected with the support, two sides of the support are provided with elastic rods, and the elastic rods are connected with the lifting rod. The elastic rods are connected with arc-shaped clamping plates, and the concave faces of the arc-shaped clamping plates are correspondingly arranged on the opposite sides. The arc-shaped clamping plates prevent a frame of the membrane curtain from shaking along the lifting hooks, so that the membrane curtain is protected from colliding with the wall of an MBR pool, and the damage rate of the aged membrane curtain is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of MBR tank components, and particularly to an MBR tank membrane curtain lifting and replacement device. Background Art

[0002] After the curtain-type membrane module is used for a long time, it is necessary to clean the sludge in it offline. The outer bracket of the MBR membrane curtain in the module is connected by a cable, and each of them is pulled up one by one; however, when pulling the MBR membrane curtain, due to the aging and becoming fragile of the pipe fittings used for many years, the existing equipment will cause the membrane curtain to move obliquely upward to the edge of the MBR tank when pulling out the MBR membrane curtain, which is likely to cause membrane curtain collision and increase the damage rate of membrane elements, affecting the efficiency of offline cleaning. Therefore, designing an MBR tank membrane curtain lifting and replacement device that can not easily cause membrane curtain tilt and collision has become an urgent technical problem to be solved. Summary of the Invention

[0003] In order to solve the above problems, the present invention provides an MBR tank membrane curtain lifting and replacement device.

[0004] The technical solution of the present utility model, an MBR tank membrane curtain lifting and replacement device, includes a bracket provided with a hook, and further includes a support crossbeam. The support crossbeam is provided with a moving groove along its length direction. The moving groove is connected with a lifting driving mechanism. The lifting driving mechanism is provided with a lifting rod connecting the bracket. Elastic rods are provided on both sides of the bracket. The elastic rods are connected with arc-shaped clamping plates, and the concave surfaces of the arc-shaped clamping plates are correspondingly arranged on the opposite sides.

[0005] After adopting the above structure, by erecting the support crossbeam at the pool opening of the MBR tank, pushing the lifting driving mechanism to move in the moving groove, moving to above the membrane curtain in the MBR tank, the lifting driving mechanism drives the lifting rod to move vertically, driving the bracket to descend. The worker in the pool hangs the hook on the frame of the membrane curtain, and then pulls the elastic rod to bend, so that the arc-shaped clamping plates open to both sides and clamp on the side of the frame, preventing the membrane curtain from swaying to the side when being pulled up, and preventing the membrane curtain from colliding with the pool wall of the MBR tank and causing damage; realizing that the lifting rod drives the membrane curtain to lift vertically, and the arc-shaped clamping plates prevent the frame of the membrane curtain from swaying along the hook, protecting the membrane curtain from colliding with the MBR tank wall and reducing the damage rate of the aging membrane curtain.

[0006] As a further improvement of the present utility model, the moving groove is further connected with a translation driving mechanism. The translation driving mechanism includes a driving chain and a pair of driving sprockets. The two ends of the driving chain are connected to both sides of the sliding seat to form a closed loop. The driving sprockets are respectively axially connected to both ends of the support crossbeam and are in cooperation connection with the driving chain.

[0007] After adopting the above structure, the driving sprockets are arranged at both ends of the supporting crossbeam and are cooperatively connected with the driving chain. By rotating the driving sprockets to drive the driving chain, the driving chain pulls the lifting driving mechanism to move in the moving groove, enabling workers to adjust the position of the lifting driving mechanism at one end of the supporting crossbeam.

[0008] As a further improvement of the present utility model, a rotating handle is provided on the side surface of the driving sprocket.

[0009] After adopting the above structure, by providing a rotating handle on the side surface of the driving sprocket, it is easier to exert force to rotate the driving sprocket.

[0010] As a further improvement of the present utility model, a fixed seat is provided at one end of the supporting crossbeam, and a movable seat is connected to the other end. The movable seat is provided with a movable hole for the end portion of the supporting crossbeam to be inserted into.

[0011] After adopting the above structure, by pushing the movable seat, the retractable rod moves in and out of the retractable cavity, changing the distance between the movable seat and the fixed seat to match the width of the MBR tank.

[0012] As a further improvement of the present utility model, the lifting rod includes a pair of threaded rods. The bottom end of the threaded rod is pivotally connected to the bracket. The lifting driving mechanism is connected with a pair of driving sleeves. The inner side of the driving sleeve is provided with internal threads that are screwed with the threaded rod, and a ball is further provided between the driving sleeve and the threaded rod.

[0013] After adopting the above structure, the driving sleeve is driven to rotate by the lifting driving mechanism, the internal thread is screwed with the threaded rod, and the threaded rod is driven to move along the driving sleeve; by providing a ball between the driving sleeve and the threaded rod, the friction generated by the relative movement between the two is reduced. Description of the Drawings

[0014] Figure 1 The structure diagram of the present utility model is shown.

[0015] Figure 2 The structure diagram of part A, the driving sprocket, is shown.

[0016] 1 - Bracket, 2 - Supporting crossbeam, 3 - Moving groove, 4 - Lifting rod, 5 - Arc-shaped clamping plate, 6 - Driving chain, 7 - Driving sprocket, 8 - Rotating handle, 9 - Fixed seat, 10 - Movable seat, 11 - Movable hole, 12 - Lifting driving mechanism. Detailed Embodiment

[0017] As Figure 1 - Figure 2The illustrated embodiment is a MBR pool membrane curtain lifting and replacement device, comprising a bracket 1 provided with a hook, and a supporting beam 2, wherein the supporting beam 2 is provided with a movable groove 3 along the length direction, the movable groove 3 is connected to a lifting drive mechanism 12, the lifting drive mechanism 12 is provided with a lifting rod 4 connected to the bracket 1, elastic rods are provided on both sides of the bracket 1, the elastic rods are connected to an arc-shaped clamping plate 5, and the concave surface of the arc-shaped clamping plate 5 is correspondingly arranged on the opposite side.

[0018] By setting up the supporting crossbeam 2 at the pool mouth of the MBR pool, the lifting drive mechanism 12 is pushed to move in the moving groove 3 and move to above the membrane curtain in the MBR pool. The lifting drive mechanism 12 drives the lifting vertical movement to drive the bracket 1 to descend, and the workers in the pool hang the hook on the frame of the membrane curtain, and then pull the elastic rod to bend, so that the arc-shaped clamping plate 5 opens to both sides and is clamped on the side of the frame to prevent the membrane curtain from shaking to the side when it is pulled up, and prevent the membrane curtain from colliding with the pool wall of the MBR pool and causing damage; the lifting rod 4 drives the membrane curtain to rise and fall vertically, and the arc-shaped clamping plate 5 prevents the frame of the membrane curtain from shaking along the hook, protects the membrane curtain from colliding with the MBR pool wall, and reduces the damage rate of the aging membrane curtain.

[0019] The movable groove is also connected to a translation driving mechanism, which includes a driving chain 6 and a pair of driving sprockets 7. The two ends of the driving chain 6 are connected to the two sides of the sliding seat to form a closed loop. The driving sprockets 7 are respectively axially connected to the two ends of the supporting beam 2 and are connected to the driving chain 6.

[0020] By setting the driving sprocket 7 at both ends of the supporting beam 2 and cooperating with the driving chain 6, the driving sprocket 7 is rotated to drive the driving chain 6, and the driving chain 6 pulls the lifting driving mechanism 12 to move in the movable groove 3, so that the worker can adjust the position of the lifting driving mechanism 12 at one end of the supporting beam 2.

[0021] A rotating handle 8 is provided on the side of the driving sprocket 7 .

[0022] By arranging a rotating handle 8 on the side of the driving sprocket 7, it is easier to exert force to rotate the driving sprocket 7.

[0023] One end of the support beam 2 is provided with a fixed seat 9, and the other end is connected to a movable seat 10. The movable seat 10 is provided with a movable hole 11 for the end of the support beam 2 to be inserted.

[0024] By pushing the movable seat 10, the contraction rod is moved in and out of the contraction cavity, and the distance between the movable seat 10 and the fixed seat 9 is changed to match the width of the MBR pool.

[0025] The lifting rod 4 includes a pair of threaded rods, the bottom ends of which are axially connected to the bracket 1. The lifting drive mechanism 12 is connected to a pair of driving sleeves. The inner side of the driving sleeve is provided with an internal thread that is screwed with the threaded rod. A ball is also provided between the driving sleeve and the threaded rod.

[0026] The lifting drive mechanism 12 is used to drive the drive sleeve to rotate, the internal thread is screwed with the threaded rod, and the threaded rod is driven to move along the drive sleeve; by arranging balls between the drive sleeve and the threaded rod, the friction generated by the relative movement of the two is reduced.

Claims

1. A MBR pool membrane curtain lifting and replacement device, comprising a bracket (1) provided with a hook, characterized in that: The invention also comprises a supporting crossbeam (2), wherein the supporting crossbeam (2) is provided with a movable groove (3) along the length direction, wherein the movable groove (3) is connected to a lifting drive mechanism (12), wherein the lifting drive mechanism (12) is provided with a lifting rod (4) connected to the bracket (1), wherein elastic rods are provided on both sides of the bracket (1), wherein the elastic rods are connected to an arc-shaped clamping plate (5), and the concave surface of the arc-shaped clamping plate (5) is correspondingly arranged on the opposite side.

2. According to claim 1, a MBR pool membrane curtain lifting and replacing device is characterized in that: The movable groove (3) is also connected to a translation driving mechanism, which comprises a driving chain (6) and a pair of driving sprockets (7). The two ends of the driving chain (6) are connected to the two sides of the sliding seat to form a closed loop. The driving sprockets (7) are respectively axially connected to the two ends of the supporting beam (2) and are connected to the driving chain (6).

3. According to claim 2, a MBR pool membrane curtain lifting and replacing device is characterized in that: A rotating handle (8) is provided on the side of the driving sprocket (7).

4. According to claim 1, a MBR pool membrane curtain lifting and replacing device is characterized in that: One end of the supporting crossbeam (2) is provided with a fixed seat (9), and the other end is connected to a movable seat (10), and the movable seat (10) is provided with a movable hole (11) for inserting the end of the supporting crossbeam (2).

5. According to claim 1, a MBR pool membrane curtain lifting and replacing device is characterized in that: The lifting rod (4) comprises a pair of threaded rods, the bottom ends of the threaded rods are axially connected to the bracket (1), and the lifting drive mechanism (12) is connected to a pair of drive sleeves, the inner sides of the drive sleeves are provided with internal threads that are screwed with the threaded rods, and a ball is also provided between the drive sleeves and the threaded rods.

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