Sewage treatment sludge separation device

Abstract

The present invention discloses a sewage treatment sludge separation device, comprising a frame, a plurality of filter plates placed on the frame, a pressing mechanism for pushing the filter plates to squeeze and drain water, and two pulling plate mechanisms for pulling the filter plates to move and unload cakes. The outer wall of the frame is symmetrically provided with a plate separation mechanism for batch separation of the filter plates. The present invention separates the filter plates pressed together by the plate separation mechanism, so that gaps are generated between the filter plates. Then, a vibration mechanism is used to drive all the filter plates to vibrate together, loosening the sludge plates. Subsequently, the filter plates only need to be completely separated by the pulling plate mechanism, so that the sludge plates can fall under the action of gravity, thereby reducing the vibration time. At the same time, the separated filter plates have a reduced distance from the pulling plate mechanism, shortening the movement time of the pulling plate mechanism to pull the filter plates, thereby improving the cake unloading efficiency. The cam mechanism and the limit mechanism cooperate to separate the filter plates at equal intervals, ensuring that when the filter plates vibrate, there is space inside for the sludge plates to loosen, thereby improving the separation effect of the sludge plates.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and in particular to a sewage treatment sludge separation device. Background Art

[0002] A filter press is a commonly used solid-liquid separation device. It applies pressure to force sludge through a filter medium (such as filter cloth) for dehydration, thereby separating solid matter (sludge) from liquid (wastewater). This method can effectively separate sludge from wastewater, enabling sludge treatment and recovery. Traditional filter presses use manual plate pulling after solid-liquid separation, and when cake unloading is unsatisfactory, manual assistance is used to unload the cake. This not only results in low efficiency but also high labor intensity.

[0003] In order to solve the above problems, a filter press with an automatic plate pulling and vibration mechanism has appeared in the prior art. Although the plate pulling and auxiliary unloading operations can be automatically realized mechanically, the plate pulling and vibration mechanism of this filter press can only process one filter plate at a time. Each time after pulling out the filter plate, it is necessary to stop moving briefly during the movement process, and loosen the cake material through the vibration mechanism before continuing to move, resulting in the entire cake unloading process taking a long time. The filter press must be used again after the cake unloading is completed, which makes the sewage treatment efficiency of the existing filter press low. Summary of the Invention

[0004] The purpose of the present invention is to provide a sewage treatment sludge separation device to address the above-mentioned shortcomings, achieve overall vibration cake loosening, and improve cake unloading efficiency.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: a sewage treatment sludge separation device, comprising a frame, a plurality of filter plates placed on the frame, a pressing mechanism for pushing the filter plates to squeeze and drain water, and two pulling plate mechanisms for pulling the filter plates to move and unload cakes, wherein the outer wall of the frame is symmetrically provided with a plate separation mechanism for batch separation of the filter plates, and the plate separation mechanism is not located within the travel range of the pulling plate mechanism; the plate separation mechanism comprises a box body and a linear module for pushing the box body up and down, the linear module is fixedly mounted on the frame, the top of the box body is provided with a guide groove, and a plurality of dividing plates for being inserted between two adjacent filter plates are slidably provided in the guide groove, and the contact surface of the dividing plate with the filter plate is an inclined surface;

[0006] A vibration mechanism is provided in the guide groove for driving the filter plate to vibrate and loosen the material; the vibration mechanism includes a support plate provided in the guide groove, the support plate is located at the bottom of the sub-plate, a spring and a vibration motor are provided at the bottom of the support plate, the other end of the spring is fixedly connected to the box body, the height of the spring when fully compressed is greater than the height of the vibration motor, and the top of the sub-plate is located outside the box body when the spring is fully compressed.

[0007] Furthermore, the sub-plate includes a top block consisting of a straight quadrangular prism at the bottom and a triangular prism at the top, a socket is provided in the top block, the direction of the socket is consistent with the sliding direction of the top block, the socket is a rectangular hole, an L-shaped hook plate is provided on the outside of the top block to be plugged into the socket, the bent end of the L-shaped hook plate faces downward and is located in the socket, a baffle is movably provided in the socket for preventing the L-shaped hook plate from moving out of the socket, and a spring hinge is provided between the baffle and the top block for limiting the baffle from flipping out of the socket.

[0008] Furthermore, a replacement plate is detachably provided on the inclined surface of the triangular prism end of the top block.

[0009] Furthermore, the side wall of the box body is provided with a cam mechanism and a limit mechanism for controlling the separation of multiple filter plates at equal intervals.

[0010] Furthermore, the cam mechanism includes no less than two stepper motors fixedly mounted on the side wall of the box body, the output end of the stepper motor is fixedly connected to a cam located in a guide groove, the cam is located at the bottom of the support plate, and when the cam is at the minimum height, it does not affect the up and down vibration of the support plate.

[0011] Furthermore, the limiting mechanism includes a C-shaped bracket fixedly mounted on the side wall of the box body, and a limiting plate is slidingly provided on the top of the C-shaped bracket for limiting the lifting of the filter plate, and the limiting plate slides horizontally and the sliding direction is perpendicular to the sliding direction of the filter plate, and the side of the limiting plate away from the filter plate is fixedly connected to a guide rod passing through the C-shaped bracket, and the end of the guide rod away from the limiting plate is threadedly connected to an end plate, and a tension spring is fixedly connected between the end plate and the C-shaped bracket, and the bottom of the limiting plate is in contact with the filter plate when the tension spring is not stretched.

[0012] Furthermore, an electromagnet is provided on the top of the C-shaped bracket, and a magnetic block is fixedly connected to the limit plate. When the electromagnet is energized, the magnetic block is attracted by the magnetic force and drives the limit plate to move to the side away from the filter plate.

[0013] The beneficial effects of the present invention are embodied in:

[0014] The present invention separates the filter plates that are pressed together by a plate separation mechanism to create gaps between the filter plates, and then utilizes a vibration mechanism to drive all the filter plates to vibrate together to loosen the mud plates. Subsequently, the filter plates only need to be completely separated by a plate pulling mechanism to make the mud plates fall under the action of gravity, thereby reducing the vibration time. At the same time, the separated filter plates have a reduced distance from the plate pulling mechanism, which shortens the movement time of the plate pulling mechanism to pull the filter plates and improves the cake unloading efficiency. The cooperation of the cam mechanism and the limit mechanism can separate the filter plates at equal intervals, ensuring that when the filter plates vibrate, there is space inside for the mud plates to loosen, thereby improving the separation effect of the mud plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional view of the present invention;

[0016] Figure 2 It is a partial view of the plate separation mechanism and the vibration mechanism;

[0017] Figure 3 for Figure 1 A local enlarged schematic diagram of point A shown;

[0018] Figure 4 for Figure 2 A partial enlarged schematic diagram of point B is shown;

[0019] Figure 5 It is a structural view of the sub-plate;

[0020] Figure 6 It is a partial view of the limiting mechanism.

[0021] In the picture:

[0022] 1. Frame; 2. Filter plate; 3. Clamping mechanism; 4. Plate pulling mechanism; 5. Plate dividing mechanism; 51. Box; 511. Guide groove; 52. Linear module; 53. Plate dividing plate; 531. Top block; 532. Socket; 533. L-shaped hook plate; 534. Baffle; 535. Spring hinge; 6. Vibration mechanism; 61. Support plate; 62. Spring; 63. Vibration motor; 7. Replacement plate; 8. Cam mechanism; 81. Stepper motor; 82. Cam; 9. Limiting mechanism; 91. C-shaped bracket; 92. Limiting plate; 93. Guide rod; 94. End plate; 95. Tension spring; 96. Electromagnet; 97. Magnetic block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] See also Figure 1-6The present invention discloses a sewage treatment sludge separation device, comprising a frame 1, a plurality of filter plates 2 placed on the frame 1, a pressing mechanism 3 for pushing the filter plates 2 to squeeze out drainage, and two pulling plate mechanisms 4 for pulling the filter plates 2 to move and unload cakes. A plate separation mechanism 5 for batch separation of the filter plates 2 is symmetrically provided on the outer wall of the frame 1, and the plate separation mechanism 5 is not located within the travel range of the pulling plate mechanism 4; the plate separation mechanism 5 comprises a box body 51 and a linear module 52 for pushing the box body 51 up and down, the linear module 52 is fixedly mounted on the frame 1, a guide groove 511 is provided on the top of the box body 51, and a plurality of dividing plates 53 for being inserted between two adjacent filter plates 2 are slidably provided in the guide groove 511, and the contact surface of the dividing plate 53 with the filter plate 2 is an inclined surface;

[0025] A vibration mechanism 6 is provided in the guide groove 511 for driving the filter plate 2 to vibrate and loosen the material; the vibration mechanism 6 includes a support plate 61 provided in the guide groove 511, the support plate 61 is located at the bottom of the sub-plate 53, and a spring 62 and a vibration motor 63 are provided at the bottom of the support plate 61, and the other end of the spring 62 is fixedly connected to the box body 51. When the spring 62 is fully compressed, the height is greater than the height of the vibration motor 63, and when the spring 62 is fully compressed, the top of the sub-plate 53 is located outside the box body 51.

[0026] The present invention pushes the multiple filter plates 2 to fit tightly together through the pressing mechanism 3, and then supplies pressurized air to pressurize and filter the sewage and sludge inside the filter plates 2, wherein the sewage is discharged along the pipeline, and the sludge forms a mud plate between the multiple filter plates 2. After the sewage is emptied, the pressing mechanism 3 retracts the pressure on the filter plates 2 to provide space for the separation of the filter plates 2. Then, the linear module 52 drives the box 51 to move upward, so that the filter plates 2 are lifted and slide along the inclined surface under the action of the dividing plate 53, so that the multiple filter plates 2 are separated. A gap is created between the filter plates 2, and then the vibration motor 63 is used to drive the support plate 61 to vibrate, so that multiple filter plates 2 vibrate at the same time, loosening the mud plates adhered to the filter plates 2. After a period of time, the linear module 52 is reset, and the plate pulling mechanism 4 is used to pull the filter plates 2 apart in sequence, so that the mud plates fall off, completing the sludge separation work. The cooperation between the plate separation mechanism and the vibration mechanism shortens the vibration time, and at the same time, the separated filter plates 2 reduce the distance between them and the plate pulling mechanism 4, so that the plate pulling mechanism 4 shortens the moving time of the filter plates 2, thereby improving the cake unloading efficiency.

[0027] Preferably, the outer wall of the sub-plate 53 is provided with a support block for supporting the filter plate 2 , which limits the falling of the filter plate 2 so that the contact surface between the filter plate 2 and the sub-plate 53 can be maintained on the inclined surface of the sub-plate 53 .

[0028] In one embodiment, the sub-plate 53 includes a top block 531 consisting of a right quadrangular prism at the bottom and a triangular prism at the top, a socket 532 is provided in the top block 531, the direction of the socket 532 is consistent with the sliding direction of the top block 531, the socket 532 is a rectangular hole, an L-shaped hook plate 533 is provided on the outside of the top block 531 to be inserted into the socket 532, the bent end of the L-shaped hook plate 533 faces downward and is located in the socket 532, a baffle 534 is movably provided in the socket 532 for preventing the L-shaped hook plate 533 from moving out of the socket 532, and a spring hinge 535 is provided between the baffle 534 and the top block 531 for limiting the baffle 534 from flipping out of the socket 532.

[0029] With this design, the L-shaped hook plate 533 fills the gap formed after the adjacent top blocks 531 are separated, avoiding the situation where the filter plate 2 falls into the gap due to the gap between the adjacent top blocks 531 being too large, thereby affecting the subsequent separation effect. The spring hinge 535 cooperates with the baffle 534 to limit the movable distance of the L-shaped hook plate 533, avoiding the L-shaped hook plate 533 from falling out of the insertion hole 532 after being subjected to force.

[0030] In one embodiment, a replacement plate 7 is detachably provided on the inclined surface of the triangular prism end of the top block 531 .

[0031] With this design, the replacement plate 7 contacts the filter plate 2 and can be replaced after the replacement plate 7 is worn for a long time, thereby preventing the increase in surface friction of the replacement plate 7 from affecting the normal sliding of the filter plate 2.

[0032] Preferably, the surface of the replacement plate 7 needs to be regularly smeared with lubricating oil and the wear particles need to be cleaned to increase the service life of the replacement plate 7.

[0033] In one embodiment, a cam mechanism 8 and a limiting mechanism 9 for controlling the separation of the multiple filter plates 2 at equal intervals are provided on the side wall of the box body 51 .

[0034] This design can avoid the situation where some separation plates 53 are directly lifted up without being separated from each other during the lifting process of the linear module 52, resulting in some filter plates 2 being separated too far apart after separation and some filter plates 2 not being separated.

[0035] In one embodiment, the cam mechanism 8 includes no less than two stepper motors 81 fixedly mounted on the side wall of the box body 51. The output end of the stepper motor 81 is fixedly connected to a cam 82 located in the guide groove 511. The cam 82 is located at the bottom of the support plate 61, and when the cam 82 is at the minimum height, it does not affect the up and down vibration of the support plate 61.

[0036] With this design, the cam 82 is driven to rotate by the stepping motor 81, and the height change of the cam 82 is utilized to realize the lifting and lowering of the support plate 61. By cooperating with the limiting mechanism 9, the multiple filter plates 2 are separated at equal intervals. At the same time, during the vibration process of the vibration motor 63, the cam 82 is driven to rotate by the stepping motor 81, which can increase the vibration intensity of the support plate 61, thereby improving the separation effect of the mud plate.

[0037] In one embodiment, the limiting mechanism 9 includes a C-shaped bracket 91 fixedly mounted on the side wall of the box body 51, and a limiting plate 92 is slidingly provided on the top of the C-shaped bracket 91 for limiting the lifting of the filter plate 2. The limiting plate 92 slides horizontally and the sliding direction is perpendicular to the sliding direction of the filter plate 2. The side of the limiting plate 92 away from the filter plate 2 is fixedly connected to a guide rod 93 passing through the C-shaped bracket 91, and the end of the guide rod 93 away from the limiting plate 92 is threadedly connected to an end plate 94, and a tension spring 95 is fixedly connected between the end plate 94 and the C-shaped bracket 91. When the tension spring 95 is not stretched, the bottom of the limiting plate 92 is in contact with the filter plate 2.

[0038] With this design, the limit plate 92 limits the upward movement of the filter plate 2 during the lifting process of the cam 82 on the support plate 61, so that the filter plate 2 can only move horizontally after being thrust, thereby ensuring that there is a certain gap between each filter plate 2 after separation, so that the mud plate adhered to the filter plate 2 can be loosened after vibration, and the setting of the guide rod 93, the end plate 94 and the tension spring 95, the limit plate 92 can maintain the restriction on the filter plate 2 during normal use, and can be moved during the installation and replacement of the filter plate 2 to prevent the limit plate 92 from affecting the removal and insertion of the filter plate 2.

[0039] In one embodiment, an electromagnet 96 is provided on the top of the C-shaped bracket 91 , and a magnetic block 97 is fixedly connected to the limiting plate 92 . When the electromagnet 96 is energized, the magnetic block 97 is attracted by the magnetic force and drives the limiting plate 92 to move away from the filter plate 2 .

[0040] With this design, the position of the limit plate 92 is adjusted by controlling the opening and closing of the electromagnet 96 , so that when the filter plate 2 needs to be taken in and out, there is no need to manually adjust the limit plate 92 , which can reduce the labor intensity of workers.

[0041] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0042] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0043] In addition, "plurality" means two or more.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A sewage treatment sludge separation device, comprising a frame (1), a plurality of filter plates (2) placed on the frame (1), a pressing mechanism (3) for pushing the filter plates (2) to squeeze out drainage, and two pulling plate mechanisms (4) for pulling the filter plates (2) to move and unload cakes, characterized in that: The outer wall of the frame (1) is symmetrically provided with a plate separation mechanism (5) for batch separation of filter plates (2), and the plate separation mechanism (5) is not located within the travel range of the plate pulling mechanism (4); the plate separation mechanism (5) comprises a box body (51) and a linear module (52) for pushing the box body (51) to move up and down, the linear module (52) is fixedly mounted on the frame (1), a guide groove (511) is provided on the top of the box body (51), and a plurality of plate separation blocks (53) for being inserted between two adjacent filter plates (2) are slidably provided in the guide groove (511), and the contact surface of the plate separation block (53) with the filter plate (2) is an inclined surface; A vibration mechanism (6) for driving the filter plate (2) to vibrate and loosen the material is provided in the guide groove (511); the vibration mechanism (6) includes a support plate (61) provided in the guide groove (511); the support plate (61) is located at the bottom of the sub-plate (53); a spring (62) and a vibration motor (63) are provided at the bottom of the support plate (61); the other end of the spring (62) is fixedly connected to the box (51); the height of the spring (62) when fully compressed is greater than the height of the vibration motor (63); and when the spring (62) is fully compressed, the top of the sub-plate (53) is located outside the box (51); The sub-plate (53) includes a top block (531) consisting of a straight quadrangular prism at the bottom and a triangular prism at the top. A socket (532) is provided in the top block (531). The direction of the socket (532) is consistent with the sliding direction of the top block (531). The socket (532) is a rectangular hole. An L-shaped hook plate (533) is provided on the outside of the top block (531) and is plugged into the socket (532). The bent end of the L-shaped hook plate (533) faces downward and is located in the socket (532). A baffle (534) is movably provided in the socket (532) for blocking the L-shaped hook plate (533) from moving out of the socket (532). A spring hinge (535) is provided between the baffle (534) and the top block (531) for limiting the baffle (534) from turning out of the socket (532).

2. The sewage treatment sludge separation device according to claim 1, characterized in that: A replacement plate (7) is detachably provided on the inclined surface of the triangular prism end of the top block (531).

3. The sewage treatment sludge separation device according to claim 1, characterized in that: The side wall of the box body (51) is provided with a cam mechanism (8) and a limit mechanism (9) for controlling the separation of the multiple filter plates (2) at equal intervals; The cam mechanism (8) includes no less than two stepper motors (81) fixedly mounted on the side wall of the box body (51), the output end of the stepper motor (81) being fixedly connected to a cam (82) located in the guide groove (511), the cam (82) being located at the bottom of the support plate (61), and the cam (82) not affecting the up and down vibration of the support plate (61) when at a minimum height.

4. The sewage treatment sludge separation device according to claim 3, characterized in that: The limiting mechanism (9) comprises a C-shaped bracket (91) fixedly mounted on the side wall of the box body (51); a limiting plate (92) for limiting the lifting of the filter plate (2) is slidably provided on the top of the C-shaped bracket (91); the limiting plate (92) slides horizontally and the sliding direction is perpendicular to the sliding direction of the filter plate (2); a guide rod (93) penetrating the C-shaped bracket (91) is fixedly connected to the side of the limiting plate (92) away from the filter plate (2); an end of the guide rod (93) away from the limiting plate (92) is threadedly connected to an end plate (94); a tension spring (95) is fixedly connected between the end plate (94) and the C-shaped bracket (91); when the tension spring (95) is not stretched, the bottom of the limiting plate (92) contacts the filter plate (2).

5. The sewage treatment sludge separation device according to claim 4, characterized in that: An electromagnet (96) is provided on the top of the C-shaped bracket (91), and a magnetic block (97) is fixedly connected to the inner portion of the limiting plate (92). When the electromagnet (96) is energized, the magnetic block (97) is attracted by magnetic force and drives the limiting plate (92) to move toward a side away from the filter plate (2).

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