A multi-stage compressed filter plate assembly for sludge dewatering pretreatment

Abstract

This utility model discloses a multi-stage compression filter plate assembly for sludge dewatering pretreatment, relating to the technical field of sludge dewatering equipment. It includes multiple filter frames, each with a filter plate body connected within it. Each filter frame has connecting blocks on both sides, and each connecting block has a horizontal insertion rod on one side. Each filter frame contains a locking element. When two adjacent filter frames are joined, the locking element in one filter frame allows the two insertion rods on the other filter frame to be inserted one-to-one with the connecting blocks on both sides of that filter frame. Each connecting block contains an unlocking element. This multi-stage compression filter plate assembly for sludge dewatering pretreatment connects the filter frames one by one, locking the insertion rods to the corresponding connecting blocks. Adjacent filter frames can be unlocked using the unlocking element. If a specific filter plate (either in the middle or rear) is to be disassembled, the connection between that specific filter plate's frame and the two preceding and following filter frames can be released using the unlocking element, eliminating the need to remove a large number of filter frames.

Description

Technical Field

[0001] This utility model relates to the technical field of sludge dewatering equipment, specifically a multi-stage compression filter plate assembly for sludge dewatering pretreatment. Background Technology

[0002] Sludge treatment is an indispensable and crucial step in urban wastewater treatment and numerous industrial production processes. The residual sludge from wastewater treatment plants and various types of sludge from industrial wastewater treatment are typically characterized by high water content (usually above 95%-99%), large volume, complex composition, poor flowability, and difficulty in treatment. To reduce the costs and environmental impact of subsequent transportation and disposal (such as landfill, incineration, composting, and resource utilization), efficient sludge dewatering, i.e., significantly reducing its water content, is the core objective of the sludge treatment process.

[0003] In existing technologies, multiple overlapping filter plates are typically used to filter and dewater wastewater and sludge. Four or more horizontal bars are usually used to string the filter plates together and fix each corner of each filter plate. It is extremely troublesome and impractical to disassemble a specific filter plate in the middle or at the back. Usually, a large number or even all of the filter plates need to be disassembled. Utility Model Content

[0004] The purpose of this invention is to provide a multi-stage compression filter plate assembly for sludge dewatering pretreatment to address the shortcomings of the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage compression filter plate assembly for sludge dewatering pretreatment includes multiple filter frames, and each filter frame is equipped with a filter plate body. Each filter frame has connecting blocks on both sides, and each connecting block has a horizontal insertion rod on one side. Each filter frame has a locking component. When two adjacent filter frames are connected, the locking component in one filter frame can be used to allow the two insertion rods on the other filter frame to be inserted into the connecting blocks on both sides of one filter frame in a one-to-one correspondence. Each connecting block has an unlocking component for unlocking the insertion rod.

[0006] Furthermore, each of the connecting blocks has a horizontally formed slot, and each of the insert rods is inserted into each slot in a corresponding manner.

[0007] Furthermore, the locking component includes two locking units, each of which includes two locking blocks. Two slots are symmetrically provided on the insertion rod. The two locking blocks are horizontally slidably connected in the connecting block in opposite directions, and the two locking blocks are engaged with the two slots in a one-to-one correspondence.

[0008] Furthermore, two grooves are symmetrically provided in the connecting block, and the two locking blocks are slidably connected in the two grooves respectively. An elastic unit is provided between the ends of the two grooves and the two locking blocks that are far away from each other to reset the locking blocks after sliding.

[0009] Furthermore, both elastic units include a telescopic column and a spring sleeved on the telescopic column, and both ends of the two telescopic columns are respectively fixedly connected to the corresponding locking block and the corresponding groove wall.

[0010] Furthermore, the pore diameter of each filter plate body decreases sequentially.

[0011] Furthermore, the ends of the two blocks that are close to each other are inclined, and the ends of the two blocks that are close to each other abut against the corresponding insert rods.

[0012] Furthermore, the unlocking component includes a first bolt, which is screwed to a corresponding connecting block, and a collar is vertically slidably connected to the first bolt. Two hinge rods are symmetrically hinged on the circumferential side of the collar, and the ends of the two hinge rods that are far apart are respectively hinged to the bottom of the two locking blocks. A pushing block is fixedly sleeved on the first bolt, and the pushing block abuts against the bottom of the collar.

[0013] Compared with the prior art, the beneficial effects provided by this utility model are as follows: the multi-stage compression filter plate assembly for sludge dewatering pretreatment connects each filter frame one by one, and the plug rod is locked and fixed to the corresponding connecting block by locking member. Moreover, the filter frames of adjacent filter frames can be unlocked by unlocking member. If a specific filter plate in the middle or rear is disassembled, the connection between the filter frame of this specific filter plate and the filter frames in front and behind can be released by unlocking member, without the need to remove a large number of filter frames. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0016] Figure 2 A front view of the structure of a single filter plate provided in an embodiment of this utility model;

[0017] Figure 3 for Figure 2 Sectional view at point AA;

[0018] Figure 4 for Figure 3 Sectional view at point BB;

[0019] Figure 5 This is a partial structural diagram provided for an embodiment of the present utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Filter frame; 2. Filter plate body; 3. Second bolt; 4. Connecting block; 5. Insert rod; 6. Slot; 7. Slot; 8. Locking block; 9. Telescopic column; 10. Spring; 11. Slide groove; 12. Hinge rod; 13. Collar; 14. First bolt; 15. Pushing block. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0022] Please see Figure 1-5 The present invention provides a technical solution: a multi-stage compression filter plate assembly for sludge dewatering pretreatment includes multiple filter frames 1, and each filter frame 1 is equipped with a filter plate body 2. Each filter frame 1 has connecting blocks 4 on both sides, and each connecting block 4 has a horizontal insertion rod 5 on one side. Each filter frame 1 is equipped with a locking component. When two adjacent filter frames 1 are connected, the locking component in one filter frame 1 can be used to make the two insertion rods 5 on the other filter frame 1 be inserted into the connecting blocks 4 on both sides of one filter frame 1 in a one-to-one correspondence. Each connecting block 4 is equipped with an unlocking component for unlocking the insertion rods 5. Specifically, the filter plate is installed in the corresponding filter frame 1 by multiple second bolts 3, which can separate the filter plate from the filter frame 1 for inspection and cleaning.

[0023] In this embodiment, each connecting block 4 has a horizontally formed slot 7. Each insert rod 5 is inserted into each slot 7 in a one-to-one correspondence. Specifically, the slot 7 serves as a guide and positioning function. When the insert rod 5 is inserted into the corresponding slot 7, the alignment between the two filter frames 1 becomes more accurate, avoiding any misalignment.

[0024] In this embodiment, the locking component includes two locking units, each of which includes two locking blocks 8. Two slots 6 are symmetrically provided on the insertion rod 5. The two locking blocks 8 are horizontally slidably connected in the connecting block 4. The two locking blocks 8 and the two slots 6 are engaged in a one-to-one correspondence. Specifically, when the insertion rod 5 is inserted into the slot 7, the two locking blocks 8 engage with the two slots 6 respectively, fixing the insertion rod 5 in the slot 7, so that the two filter frames 1 are installed together in parallel.

[0025] In this embodiment, two grooves are symmetrically provided in the connecting block 4, and two locking blocks 8 are slidably connected in the two grooves respectively. The two grooves are provided with elastic units between the ends of the two locking blocks 8 that are far away from each other, so as to reset the locking blocks 8 after sliding. Specifically, the two grooves play a guiding and limiting role, so that the movement path of the two locking blocks 8 is straight, so that the locking blocks 8 and the locking groove 6 are precisely engaged and matched, and the engagement process is timely.

[0026] In this embodiment, both elastic units include telescopic columns 9 and springs 10 sleeved on the telescopic columns 9. Both ends of the two telescopic columns 9 are fixedly connected to the corresponding locking blocks 8 and the corresponding groove walls, respectively. Specifically, the ends of the two locking blocks 8 that are close to each other are inclined, and the ends of the two locking blocks 8 that are close to each other abut against the corresponding insert rods 5. When the filter frames 1 are not connected, the ends of the two locking blocks 8 that are close to each other are in close contact. When the insert rod 5 moves along the slot 7, since the locking blocks 8 can only move horizontally along the groove direction, the insert rod 5 abuts against the inclined surface of the locking blocks 8. The horizontal component of the contact force directly causes the locking blocks 8 to move horizontally, driving the two locking blocks 8 to move horizontally in a direction away from each other. When the two locking blocks 8 are facing the corresponding slots 6, the force of the spring 10 drives the two locking blocks 8 to move closer, so that the two locking blocks 8 are engaged with the corresponding slots 6, realizing the connection between the two filter frames 1.

[0027] In this embodiment, the pore size of each filter plate body 2 decreases sequentially. Specifically, the setting of different pore sizes can achieve graded filtration. The sludge is first dewatered by the large-pore filter plate and then deeply dewatered by the small-pore filter plate, resulting in higher graded treatment efficiency.

[0028] In this embodiment, the unlocking component includes a first bolt 14, which is screwed to a corresponding connecting block 4. A collar 13 is vertically slidably connected to the first bolt 14. Two hinge rods 12 are symmetrically hinged to the circumferential side of the collar 13. The ends of the two hinge rods 12 that are far apart are respectively hinged to the bottom of the two locking blocks 8. A pushing block 15 is fixedly sleeved on the first bolt 14. The pushing block 15 abuts against the bottom of the collar 13. Specifically, the collar 13 is vertically slidably sleeved on the first bolt 14. A groove 11 is vertically formed in each connecting block 4. The collar 13 is vertically slidably connected in the groove 11. During the process of frame 1, the movement of the locking block 8 will drive the collar 13 to move vertically up and down through the hinge rod 12, and the collar 13 will not contact the pushing block 15. When it is necessary to disassemble a single filter frame 1, the first bolt 14 at the bottom of the connecting block 4 can be rotated. The first bolt 14 drives the pushing block 15 to move continuously toward the collar 13. The pushing block 15 contacts the bottom of the collar 13, pushing the collar 13 to move upward. Through the transmission of the two hinge rods 12, the two locking blocks 8 are driven to move away from each other, thereby unlocking the insertion rod 5. The connection between the filter frame 1 of this specific filter plate and the two filter frames 1 in front and behind can be released without removing a large number of filter frames 1.

[0029] Working principle: When multiple filter frames 1 of the multi-stage compression filter plate assembly for sludge dewatering pretreatment are stacked together, the insert rod 5 is inserted along the slot 7. The insert rod 5 abuts against the inclined surface of the two locking blocks 8. The horizontal component of the contact force directly causes the locking blocks 8 to move horizontally, driving the two locking blocks 8 to move horizontally in a direction away from each other. When the two locking blocks 8 are facing the corresponding slots 6, the force of the spring 10 drives the two locking blocks 8 to move closer, so that the two locking blocks 8 are engaged with the corresponding slots 6, realizing the connection between the two filter frames 1. When it is necessary to disassemble a single filter frame 1, the first bolt 14 at the bottom of the connecting block 4 can be rotated. The first bolt 14 drives the pushing block 15 to move continuously toward the collar 13. The pushing block 15 contacts the bottom of the collar 13, pushing the collar 13 to move upward. Through the transmission of the two hinge rods 12, the two locking blocks 8 are driven away from each other, realizing the unlocking of the insert rod 5. The connection between the filter frame 1 of this specific filter plate and the two filter frames 1 in front and behind can be released without removing a large number of filter frames 1.

[0030] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A multi-stage compression filter plate set for sludge dewatering pretreatment, characterized by, It includes multiple filter frames (1), and each filter frame (1) is equipped with a filter plate body (2). Each filter frame (1) has a connecting block (4) on both sides, and each connecting block (4) has a horizontal insertion rod (5) on one side. Each filter frame (1) is equipped with a locking component. When two adjacent filter frames (1) are connected, the locking component in one filter frame (1) can be used to make the two insertion rods (5) on the other filter frame (1) be inserted into the connecting blocks (4) on both sides of one filter frame (1) in a one-to-one correspondence. Each connecting block (4) is equipped with an unlocking component for unlocking the insertion rod (5).

2. The multi-stage compressed filter plate assembly for sludge dewatering pretreatment according to claim 1, characterized in that, Each of the connecting blocks (4) has a slot (7) horizontally opened inside, and each of the insert rods (5) is inserted into each slot (7) in a one-to-one correspondence.

3. The multi-stage compressed filter plate assembly for sludge dewatering pretreatment according to claim 1, characterized in that, The locking component includes two locking units, each of which includes two locking blocks (8). The insert rod (5) is symmetrically provided with two slots (6). The two locking blocks (8) are horizontally slidably connected in the connecting block (4) in opposite directions. The two locking blocks (8) and the two slots (6) are engaged in a one-to-one correspondence.

4. The multi-stage compressed filter plate assembly for sludge dewatering pretreatment according to claim 3, characterized in that, The connecting block (4) has two symmetrical grooves, and the two locking blocks (8) are slidably connected in the two grooves respectively. The two grooves are provided with elastic units for resetting the locking blocks (8) after sliding between the ends of the two locking blocks (8) and the ends of the two locking blocks (8).

5. A multi-stage compressed filter plate assembly for sludge dewatering pretreatment according to claim 4, characterized in that, Both elastic units include a telescopic column (9) and a spring (10) sleeved on the telescopic column (9). Both ends of the two telescopic columns (9) are respectively fixedly connected to the corresponding locking block (8) and the corresponding groove wall.

6. A multi-stage compressed filter plate assembly for sludge dewatering pretreatment according to claim 1, characterized in that, The pore diameter of each filter plate body (2) decreases sequentially.

7. A multi-stage compressed filter plate assembly for sludge dewatering pretreatment according to claim 3, characterized in that, The two card blocks (8) are inclined at their adjacent ends, and the two card blocks (8) abut against the corresponding insertion rod (5).

8. A multi-stage compressed filter plate assembly for sludge dewatering pretreatment according to claim 3, characterized in that, The unlocking component includes a first bolt (14), which is screwed to a corresponding connecting block (4). A collar (13) is vertically slidably connected to the first bolt (14). Two hinge rods (12) are symmetrically hinged on the circumferential side of the collar (13). The ends of the two hinge rods (12) that are far apart are respectively hinged to the bottom of the two locking blocks (8). A push block (15) is fixedly sleeved on the first bolt (14). The push block (15) abuts against the bottom of the collar (13).

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