Front cloth pressing mechanism and multilayer stacked solid-liquid separation system

Abstract

The utility model relates to sludge dewatering equipment, in particular to a front cloth pressing mechanism and a multilayer stacked solid-liquid separation system. The front cloth pressing mechanism can be installed on the front side of a water collecting outer barrel body of a multi-layer stacked solid-liquid separation system provided by the patent document CN221094005U, and is used for pressing filter cloth before an upper-layer trolley body of a secondary material spreading trolley moves backwards. According to the front cloth pressing mechanism, at least two pressing blocks are driven by a driving device (such as an air cylinder), and compared with a front cloth pressing mechanism provided by a patent document CN221094005U, the number of needed driving devices is smaller, and the cost is lower. The multi-layer stacked solid-liquid separation system comprises a material barrel used for containing stacked filter cloth and sludge and a material spreading trolley used for spreading the sludge, the material spreading trolley comprises an upper-layer trolley body and a lower-layer trolley body which can move relatively, and a receding notch corresponding to a front pressing block is formed in the front end of the upper-layer trolley body; the front cloth pressing mechanism provided by the utility model is arranged on the front side of the charging barrel.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sludge dewatering equipment, in particular to a front cloth pressing mechanism and a multi-layered cumulative stacking solid-liquid separation system. BACKGROUND

[0002] Patent document CN221094005U describes a sludge high-pressure reciprocating automatic dewatering equipment (in patent document CN114917634A, this type of equipment is called a multi-layered cumulative stacking solid-liquid separation system, which is more appropriate, so this application file will refer to this type of equipment as a multi-layered cumulative stacking solid-liquid separation system in other locations), see patent document CN221094005U specification paragraph 0033, before the upper layer of the secondary paving trolley moves forward, the rear cloth pressing mechanism (including at least two first cylinders) behind the high-pressure hydraulic cylinder tightens the filter cloth on both sides, before the upper layer of the secondary paving trolley moves backward, the front cloth pressing mechanism (including at least two second cylinders) in front of the high-pressure hydraulic cylinder tightens the filter cloth on both sides.

[0003] In the implementation of the technical solution described in patent document CN221094005U, the present inventors have found that the number of first cylinders is at least four, because the pressing blocks on the right / left side for pressing cloth need to be moved downward to press the filter cloth before the upper layer of the secondary paving trolley moves forward, and moved left / right to pull out from the folded filter cloth after the rear cloth pressing mechanism tightens the filter cloth, the upward / downward movement and the leftward / rightward movement need to be realized by different first cylinders.

[0004] The present inventors have also found that if the structure and position of the front cloth pressing mechanism are changed, the pressing of cloth can be completed by one cylinder. INVENTION CONTENTS

[0005] The technical problem to be solved by the present utility model is to provide a front cloth pressing mechanism, which can be installed on the front side of the water collecting outer barrel body of the multi-layered cumulative stacking solid-liquid separation system provided in patent document CN221094005U, and used to tighten the filter cloth before the upper layer of the secondary paving trolley moves backward. The front cloth pressing mechanism is driven by one driving device (such as a cylinder) to drive at least two pressing blocks, compared with the front cloth pressing mechanism provided in patent document CN221094005U, the number of required driving devices is less, and the cost is lower.

[0006] The front cloth pressing mechanism provided by the utility model comprises at least two front pressing blocks, a driving device, two first connecting seats, a second connecting seat and a transmission frame, the first connecting seat and the second connecting seat are used to be fixedly connected to the front side of the barrel, the front pressing block is fixed on the transmission frame, the transmission frame is rotatably connected to the two first connecting seats respectively, the driving device is rotatably connected to the second connecting seat, and the driving end of the driving device is rotatably connected to the transmission frame, so that the transmission frame can be controlled to rotate relative to the two first connecting seats by telescoping the driving end, so that the front pressing block can switch back and forth between a position for pressing the filter cloth and a position for loosening the filter cloth.

[0007] The fore-and-aft orientation is determined by the positional relationship between the high-pressure dehydration mechanism of the multi-layered solid-liquid separation system and the lower body of the secondary paving vehicle. The high-pressure dehydration mechanism is located in front of the lower body of the secondary paving vehicle. The high-pressure dehydration mechanism includes a barrel. The barrel's structure can be found in patent document CN221094005U, comprising a water-collecting outer barrel and a pressure-resistant inner barrel. The barrel structure is also described in the detailed description of the present application.

[0008] The drive device can be a cylinder or other device such as a motor. The drive device moves the load by extending and retracting its drive end. The position of the first connecting seat relative to the second connecting seat is related to the structure of the transmission frame, the first connecting seat, and the second connecting seat. For example, if the transmission frame has a "T"-shaped structure, with the left and right ends respectively rotatably connected to the two first connecting seats, and the third end rotatably connected to the drive device, the two first connecting seats can be respectively positioned above the left and right of the second connecting seat, and the distance between the two first connecting seats and the second connecting seat is equal.

[0009] Preferably, in order to enable the transmission frame to rotate smoothly relative to the two first connecting seats, a bearing is provided between the transmission frame and the first connecting seats.

[0010] Preferably, to reduce wear of the front pressure block on the filter cloth, the front pressure block is made of rubber; to increase the contact area between the front pressure block and the filter cloth, the front pressure block is a square block; to make the front pressure block replaceable, the front pressure block is detachably fixed to the extension frame. Unpreferably, the front pressure block is a metal square block or a metal round rod.

[0011] Preferably, in order to increase the friction of the front pressing block on the filter cloth, the lower surface of the front pressing block is provided with anti-slip lines.

[0012] The multi-layer stacked solid-liquid separation system provided by the present invention includes a barrel for accommodating stacked filter cloths and sludge, and a paving trolley for paving the sludge. The paving trolley includes an upper body and a lower body that can move relative to each other. The front end of the upper body is provided with a clearance gap corresponding to the front pressing block, and the front side of the barrel is provided with a front cloth pressing mechanism provided by the present invention.

[0013] The structure of the paving trolley can refer to the secondary paving trolley of patent document CN221094005U, and can also refer to the description of the paving trolley structure in the specific implementation manner of this application document.

[0014] The multi-layer stacked solid-liquid separation system also includes a filter press frame and a rear cloth pressing mechanism. The barrel and the rear cloth pressing mechanism are fixed on the filter press frame. The rear cloth pressing mechanism includes two mirror-symmetrical rear cloth pressing assemblies. The rear cloth pressing assembly includes a rear pressing block and a rear drive assembly for moving the rear pressing block. Preferably, in order to reduce the wear of the rear pressing block on the filter cloth, the rear pressing block is made of rubber; in order to increase the contact area between the rear pressing block and the filter cloth, the rear pressing block is a square block; in order to make the rear pressing block replaceable, the rear pressing block is fixed to the extension frame in a detachable manner. A sunken table is provided on the upper side of the barrel for making way for the rear pressing block, so that the rear pressing block can be moved to the bottom of the upper vehicle body when pressing the cloth, making way for the forward and backward movement of the upper vehicle body. Not preferably, the front pressing block is a metal square block or a metal round rod.

[0015] Preferably, in order to increase the friction force of the rear pressing block on the filter cloth, the lower surface of the rear pressing block is provided with anti-slip textures. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 and 2 They are three-dimensional views of a multi-layer stacked solid-liquid separation system according to an embodiment of the present invention from different perspectives;

[0017] Figure 3 for Figure 1 A three-dimensional view of the front cloth pressing mechanism shown;

[0018] Figure 4 for Figure 2 A perspective view of the left rear cloth pressing assembly is shown;

[0019] Figure 5 for Figure 1 The diagram shows the mud laying steps of the multi-layer stacked solid-liquid separation system. DETAILED DESCRIPTION

[0020] See also Figures 1 to 4 , a multi-layer stacked solid-liquid separation system, comprising Figure 1 and 2The filter press frame 1, the material cylinder 2, the material laying trolley 3, the front cloth pressing mechanism 4, the rear cloth pressing mechanism 5, and the upper pressing plate 6 are shown in FIG. 1. The material cylinder 2 is fixed on the filter press frame 1 and used for accommodating the stacked filter cloth and sludge. The material laying trolley 3 comprises an upper trolley body 31 and a lower trolley body 32. The lower trolley body 32 can slide forward and backward relative to the trolley frame 7. The upper trolley body 31 can slide forward and backward relative to the lower trolley body 32. The front cloth pressing mechanism 4 is installed on the front side of the material cylinder 2. The rear cloth pressing mechanism 5 is installed on the filter press frame 1. The multi-layer stacked solid-liquid separation system further comprises a filter cloth folding and unfolding mechanism for folding and unfolding the filter cloth, a lower top plate movable up and down in the material cylinder 2 for supporting the filter cloth and sludge, and the like. For reference, please refer to the patent document CN221094005U.

[0021] The material cylinder 2 comprises an inner cylinder and an outer cylinder. A plurality of draining holes are arranged on the inner cylinder. A water outlet is arranged on the outer cylinder and connected with a water drainage pipe. The stacked filter cloth and sludge in the material cylinder 2 are pressed by the upper pressing plate 6, so that the water in the sludge is squeezed out, drained from the draining holes to the space between the inner cylinder and the outer cylinder, and then drained from the water outlet to the water drainage pipe.

[0022] Referring to FIG. 2, Figure 5 When the material laying trolley 3 lays the sludge, the lower trolley body 32 is stationary, and the upper trolley body 31 moves back and forth relative to the lower trolley body 31 to lay one layer of sludge. After the rear pressing block 51 of the rear cloth pressing mechanism 5 presses the filter cloth 100, the upper trolley body 31 moves from the rear of the material cylinder 2 to the top of the material cylinder 2 to push the filter cloth 100 out of a U-shaped space. Then, the pressing block 45 of the front cloth pressing mechanism 4 presses the filter cloth 100, and the upper trolley body 31 moves backward while spraying the sludge until it returns to the rear of the material cylinder 2, thereby completing the laying of one layer of sludge.

[0023] Referring to FIG. 3, Figure 3 The front cloth pressing mechanism 4 comprises two first connecting seats 41, one second connecting seat 42, one driving device 43 (cylinder), and one transmission frame 44. The second connecting seat 42 and the two first connecting seats 41 are fixed on the front side of the material cylinder 2. The two first connecting seats 41 are equidistant from the second connecting seat 42 and are located above the left and right of the second connecting seat 42, respectively. The transmission frame 44 is in a "T" shape and is rotatably connected with the two first connecting seats 41 at the left and right ends, respectively. The third end of the transmission frame 44 is rotatably connected with the driving end of the driving device 43. The driving device 43 is rotatably connected with the second connecting seat 42. The transmission frame 44 is provided with two extension frames 441. The lower side of the extension frame 441 is fixed with the front pressing block 45 by screws. The front pressing block 45 is a rubber block. After the screws are removed, the worn front pressing block 45 can be removed and replaced with a new one.

[0024] The lower side of the front pressing block 45 is provided with anti-skid lines. When the driving device 43 retracts its driving end, the lower side of the front pressing block 45 is separated from the filter cloth on the material cylinder 2. When the driving device 43 pushes out its driving end, the front pressing block 45 is pressed on the filter cloth on the material cylinder 2. The front end of the upper car body 31 is provided with a gap 311 corresponding to the front pressing block 45, so that the front pressing block 45 can press the filter cloth from the gap 311.

[0025] The rear pressing cloth mechanism 5 includes two mirror-symmetrical rear pressing cloth assemblies, as shown in Figure 4 The rear pressing cloth assembly includes a rear pressing block 51 and a rear driving assembly for moving the rear pressing block 51. The rear driving assembly includes a connecting frame 52, a vertical rod 53, a vertical driving unit 54, a sliding frame 55, a horizontal driving unit 56 and a horizontal rod 57. The connecting frame 52 is fixed on the filter press frame 1 and includes an upper frame body 521 and a lower frame body 522. The upper and lower ends of the vertical rod 53 are fixed on the upper frame body 521 and the lower frame body 522, respectively. The sliding frame 55 is slidably arranged on the vertical rod 53. The vertical driving unit 54 is fixed on the upper frame body 521. The driving end of the vertical driving unit 54 is connected with the sliding frame 55 to control the sliding frame 55 to slide up and down along the vertical rod 53 through the telescopic driving end.

[0026] The horizontal driving unit 56 is fixed on the upper side of the sliding frame 55. The lower side of the sliding frame 55 is provided with a sliding seat 551. The horizontal rod 57 is slidably arranged in the sliding seat 551. The driving end of the horizontal driving unit 56 is fixedly connected with the horizontal rod 57 through a connecting piece 58 to control the horizontal rod 57 to slide left and right relative to the sliding frame 55 through the telescopic driving end. The rear pressing block 51 is a rubber square block. The lower side is provided with anti-skid lines. The upper side is provided with a mounting groove. The horizontal rod 57 is embedded in the mounting groove. The rear pressing block 51 is fixed on the horizontal rod 57 through bolts. The connecting piece 58 and the rear pressing block 51 are fixed on the two ends of the horizontal rod 57, respectively. After the bolts are removed, the worn rear pressing block 51 can be removed and replaced with a new one.

[0027] Before the upper car body 31 moves forward from the rear of the material cylinder 2, the horizontal driving unit 56 retracts its driving end to make the rear pressing block 51 above the filter cloth. Then, the vertical driving unit 54 pushes out its driving end to make the rear pressing block 51 move down to press the filter cloth. Figure 4 5 The upper side of the material cylinder 2 is provided with a sunken platform 21 for giving way to the rear pressing block 51, so that the rear pressing block 51 is below the upper car body 31 when pressing the cloth and does not interfere with the forward and backward movement of the upper car body 31. After the front pressing block 45 presses the filter cloth, the horizontal driving unit 56 pushes out its driving end to make the rear pressing block 51 withdraw from the filter cloth. Then, the vertical driving unit 54 retracts its driving end to make the rear pressing block 51 rise and reset.​

Claims

1. A front cloth pressing mechanism (4) for use in a multi-layer stacked solid-liquid separation system, the multi-layer stacked solid-liquid separation system comprising a barrel (2) for accommodating stacked filter cloths and sludge, the front cloth pressing mechanism comprising at least two front pressing blocks (45), characterized in that: The front cloth pressing mechanism further comprises a driving device (43), two first connecting seats (41), a second connecting seat (42) and a transmission frame (44), wherein the first connecting seat and the second connecting seat are used for fixed connection with the front side of the barrel, the front pressing block is fixed on the transmission frame, the transmission frame is rotationally connected to the two first connecting seats respectively, the driving device is rotationally connected to the second connecting seat, and the driving end of the driving device is rotationally connected to the transmission frame, so that the transmission frame is controlled to rotate relative to the two first connecting seats by telescoping the driving end, so that the front pressing block switches back and forth between a position for pressing the filter cloth and a position for loosening the filter cloth.

2. The front cloth pressing mechanism according to claim 1, characterized in that: A bearing is provided between the transmission frame and the first connecting seat.

3. The front cloth pressing mechanism according to claim 1, characterized in that: The transmission frame is a "T" shaped structure.

4. The front cloth pressing mechanism according to claim 1, characterized in that: An extension frame (441) corresponding to the front pressing block is provided on the transmission frame, the extension frame is fixed on the transmission frame, and the front pressing block is a rubber block fixed on the extension frame in a detachable manner.

5. The front cloth pressing mechanism according to claim 4, characterized in that: The lower surface of the front pressing block is provided with anti-slip grooves.

6. A multi-layer stacked solid-liquid separation system, comprising a barrel for accommodating stacked filter cloth and sludge, and a spreading trolley (3) for spreading the sludge, the spreading trolley comprising an upper body (31) and a lower body (32) that can move relative to each other, the front end of the upper body being provided with a clearance notch (311) corresponding to a front pressure block, characterized in that: The front side of the barrel is provided with a front cloth pressing mechanism as claimed in any one of claims 1 to 5.

7. The multi-layer stacked solid-liquid separation system according to claim 6, wherein: The multi-layer stacked solid-liquid separation system further comprises a filter press frame (1) and a rear cloth pressing mechanism (5), wherein the barrel and the rear cloth pressing mechanism are fixed on the filter press frame, and the rear cloth pressing mechanism comprises two mirror-symmetrical rear cloth pressing assemblies, wherein the rear cloth pressing assembly comprises a rear pressing block (51) and a rear driving assembly for moving the rear pressing block, wherein the rear pressing block is a rubber block and is detachably connected to the rear driving assembly; a sinking table (21) for making way for the rear pressing block is provided on the upper side of the barrel, so that the rear pressing block can move to the bottom of the upper vehicle body during cloth pressing, thereby making way for the forward and backward movement of the upper vehicle body.

8. The multi-layer stacked solid-liquid separation system according to claim 7, wherein: The lower surface of the rear pressing block is provided with anti-slip grooves.

9. The multi-layer stacked solid-liquid separation system according to claim 7, wherein: The rear drive assembly comprises a connecting frame (52), a longitudinal rod (53), a longitudinal drive unit (54), a sliding frame (55), a transverse drive unit (56) and a transverse rod (57), wherein the connecting frame is fixed to the filter press frame, the longitudinal rod is fixed to the connecting frame, the sliding frame is slidably arranged on the longitudinal rod, the longitudinal drive unit is fixed to the connecting frame, the driving end of the longitudinal drive unit is connected to the sliding frame, and the sliding frame is controlled to slide up and down along the longitudinal rod by telescopic driving end; the transverse drive unit is fixed to the sliding frame, the transverse rod is slidably arranged on the sliding frame, the rear pressure block is fixed to the transverse rod, and the driving end of the transverse drive unit is connected to the transverse rod, and the transverse drive end is controlled to slide left and right relative to the sliding frame by telescopic driving end.

10. The multi-layer stacked solid-liquid separation system according to claim 9, wherein: The transverse drive unit is fixed on the upper side of the sliding frame, and a sliding seat (551) is provided on the lower side of the sliding frame. The cross bar is slidably inserted into the sliding seat, and the rear pressure block is fixed on one end of the cross bar. The other end of the cross bar is fixedly connected to the driving end of the transverse drive unit through a connecting piece (58).

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