Novel plate-and-frame filter press

Abstract

The utility model discloses a novel plate-and-frame filter press. The novel plate-and-frame filter press comprises a rack and a separation unit, the right end of the middle of the rack is slidably connected with uniformly-distributed frame bodies, symmetrically-distributed filter plates are arranged in the frame bodies, and the left end of the interior of the rack is slidably connected with a pressing plate; the separating unit comprises sliding seats, electric push rods and triangular plates, the sliding seats are slidably connected to the front side face and the rear side face of the rack respectively, the electric push rods are arranged in the middles of the sliding seats, the triangular plates are arranged at the telescopic ends of the electric push rods, and the triangular plates are matched with the longitudinally-corresponding frame bodies; wherein the novel plate-and-frame filter press further comprises a PLC, the PLC is arranged at the left end of the rack, the input end of the electric push rod is electrically connected with the output end of the PLC, the input end of the PLC is electrically connected with an external power source, the left end of the rack is provided with an electric-hydraulic push rod, the novel plate-and-frame filter press can automatically separate the frame body, the labor burden is small, and the use convenience is good.

Description

Technical Field

[0001] The utility model relates to the technical field of plate-frame filter presses, in particular to a novel plate-frame filter press. Background Art

[0002] Plate and frame filter press is the first machine used in chemical dehydration. Although plate and frame filter press is generally intermittent operation, the infrastructure equipment investment is large, and the filtering capacity is also low, it is still widely used in some small sewage treatment plants because of its advantages such as large filtering driving force, high solid content of filter cake, clear filtrate, high solid recovery rate, and low consumption of conditioning drugs. The existing plate and frame filter press is composed of multiple frames arranged in an array, and the multiple frames are compressed by a clamping device, that is, a filter press chamber is formed between the plate and the frame to realize filtration. After filtration, it is generally necessary to manually separate the adjacent frames to facilitate the discharge of the filter residues of the two. The labor burden of manual operation is large, which affects the convenience of use. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a novel plate and frame filter press, which can automatically separate the frame, has low labor burden and good convenience of use, and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel plate-and-frame filter press, comprising a frame and a separation unit;

[0005] Frame: The right end of the middle part is slidably connected with a uniformly distributed frame, the inside of the frame is provided with symmetrically distributed filter plates, and the left end of the inside of the frame is slidably connected with a pressure plate;

[0006] Separation unit: It includes a sliding seat, an electric push rod and a triangular plate. The sliding seat is slidably connected to the front and rear sides of the frame respectively. The middle part of the sliding seat is provided with an electric push rod. The telescopic end of the electric push rod is provided with a triangular plate. The triangular plates are matched with the frame corresponding to the longitudinal direction.

[0007] Among them: it also includes a PLC controller, the PLC controller is arranged at the left end of the frame, the input end of the electric push rod is electrically connected to the output end of the PLC controller, and the input end of the PLC controller is electrically connected to an external power supply. During use, the servo motor and two electric push rods can be used to separate the frames one by one to facilitate the outflow of internal filter residues. The synchronous drive on both sides has a good separation effect, which reduces the labor burden of users and improves the convenience of using the plate and frame filter press.

[0008] Furthermore, an electro-hydraulic push rod is provided at the left end of the frame, the telescopic end of the electro-hydraulic push rod is fixedly connected to the left side of the pressure plate, and the input end of the electro-hydraulic push rod is electrically connected to the output end of the PLC controller to facilitate the movement of the pressure plate.

[0009] Furthermore, the separation unit also includes a screw rod, which is rotatably connected to the front and rear ends of the frame through bearings, and the sliding seats are respectively threadedly connected to the vertically corresponding screw rods to facilitate the control of the movement of the sliding seats.

[0010] Furthermore, the separation unit also includes a synchronous pulley and a servo motor. The servo motor is arranged at the right end of the frame. Synchronous pulleys are provided on the right end of the screw rod and the output shaft of the servo motor. The three synchronous pulleys are connected by the same synchronous belt transmission to facilitate the rotation of the screw rod.

[0011] Furthermore, the sides of the triangle plate away from the frame are provided with guide shafts, and the guide shafts are respectively slidably connected to the longitudinally adjacent sliding seats, and the sliding seats provide sliding support for the triangle plate.

[0012] Furthermore, a spring is movably sleeved on the outer arc surface of the guide shaft, and the spring is located between the triangular plate and the sliding seat, and can store force to increase the thrust.

[0013] Furthermore, protective strips are provided on the front and rear sides of the frame, and the screw rods are respectively located inside the vertically corresponding protective strips. A protective shell is provided on the right end of the frame, and the synchronous pulleys are located inside the protective shell to provide protection for rotating parts.

[0014] Compared with the prior art, the beneficial effects of the utility model are: the new plate-frame filter press has the following advantages:

[0015] The PLC controller is controlled and the electro-hydraulic push rod is operated. The telescopic end of the electro-hydraulic push rod drives the pressure plate to move to the left, and the pressure plate is separated from the leftmost frame. The two electric push rods operate synchronously. The telescopic end of the electric push rod drives the triangular plate to move upward. The triangular plate contacts the convex heads at the front and rear ends of the leftmost frame. The inclined surface of the triangular plate drives the leftmost frame to move to the left, and the leftmost frame is separated from the second left frame, which is convenient for the discharge of the internal filter residue of the two. The servo motor is operated, and the output shaft of the servo motor drives the two screws to rotate through the synchronous pulley and the synchronous belt. The movable sliding seat moves to the right. After the sliding seat moves a distance of the thickness of the frame, the servo motor stops running, and the telescopic end of the electric push rod extends to drive the triangular plate to move closer to the frame and push the frame to the right, so that the frames can be separated in turn to facilitate the discharge of the internal filter residue. During use, the servo motor and two electric push rods can be used to separate the frames one by one to facilitate the outflow of the internal filter residue. The synchronous drive on both sides has a good separation effect, which reduces the labor burden of users and improves the convenience of using the plate and frame filter press. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2It is a cross-sectional structural schematic diagram of the separation unit of the utility model;

[0018] Figure 3 This is an enlarged structural diagram of the utility model at A;

[0019] Figure 4 It is a schematic cross-sectional structure diagram of the frame of the utility model.

[0020] In the figure: 1 frame, 2 frame, 3 pressure plate, 4 electro-hydraulic push rod, 5 PLC controller, 6 separation unit, 61 sliding seat, 62 electric push rod, 63 triangular plate, 64 screw rod, 65 synchronous pulley, 66 servo motor, 7 guide shaft, 8 spring, 9 protection strip, 10 protection shell, 11 filter plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 ,This embodiment provides a technical solution: a novel plate-and-frame filter press, comprising a frame 1 and a separation unit 6;

[0023] Frame 1: The right end of the middle part thereof is slidably connected with a uniformly distributed frame 2, and the inside of the frame 2 is provided with symmetrically distributed filter plates 11. When in use, the material to be filtered is injected into the feed pipe on the right side of the frame 1 under high pressure, and the material will pass through the through hole above the frame 2 and be dispersed between the two filter plates 11 of the adjacent frame 2. Under the pressure of the material itself, the liquid inside it will pass through the filter holes of the filter plate 11 and enter between the two filter plates 11 inside the same frame 2, and then be discharged to the outside through the liquid outlet hole and the liquid outlet pipe at the bottom of the frame 2, and the filter residue part will stay between the two frames 2 to realize the material filtration. The left end inside the frame 1 is slidably connected with a pressing plate 3, and the left end of the frame 1 is provided with an electro-hydraulic push rod 4, and the telescopic end of the electro-hydraulic push rod 4 is fixedly connected to the left side of the pressing plate 3, and the input end of the electro-hydraulic push rod 4 is electrically connected to the output end of the PLC controller 5. When the electro-hydraulic push rod 4 is running, the telescopic end of the electro-hydraulic push rod 4 drives the pressing plate 3 to move to the left, and the pressing plate 3 is separated from the leftmost frame 2;

[0024] Separation unit 6: It includes a sliding seat 61, an electric push rod 62 and a triangular plate 63. The sliding seat 61 is slidably connected to the front and rear sides of the frame 1 respectively. The middle part of the sliding seat 61 is provided with an electric push rod 62. The telescopic end of the electric push rod 62 is provided with a triangular plate 63. The triangular plate 63 is arranged in cooperation with the longitudinally corresponding frame 2. The two electric push rods 62 operate synchronously. The telescopic end of the electric push rod 62 drives the triangular plate 63 to move upward. The triangular plate 63 contacts the convex heads at the front and rear ends of the leftmost frame 2. The inclined surface of the triangular plate 63 drives the leftmost frame 2 to move leftward. The leftmost frame 2 and the left second frame 2 separation, convenient for the discharge of the internal filter residue of the two, then the telescopic end of the electric push rod 62 is contracted to drive the triangular plate 63 to reset, the separation unit 6 also includes a screw rod 64, the screw rod 64 is rotatably connected to the front and rear ends of the frame 1 through a bearing, the sliding seat 61 is respectively threadedly connected with the vertically corresponding screw rod 64, the separation unit 6 also includes a synchronous pulley 65 and a servo motor 66, the servo motor 66 is arranged at the right end of the frame 1, the right end of the screw rod 64 and the output shaft of the servo motor 66 are both provided with a synchronous pulley 65, the three synchronous pulleys 65 are connected by the same synchronous belt transmission, after the triangular plate 63 is reset, the servo motor 66 The output shaft of the servo motor 66 drives the two screws 64 to rotate through the synchronous pulley 65 and the synchronous belt, and the screw 64 drives the sliding seat 61 to move to the right. After the sliding seat 61 moves a distance of the thickness of the frame 2, the servo motor 66 stops running, and the telescopic end of the electric push rod 62 extends to drive the triangular plate 63 to move closer to the frame 2 and push the frame 2 to move to the right, so that the frame 2 can be separated in turn to facilitate the discharge of the internal filter residue. The sides of the triangular plate 63 away from the frame 1 are provided with guide shafts 7, and the guide shafts 7 are respectively slidably connected with the longitudinally adjacent sliding seats 61, and the guide shafts 7 provide the triangular plate 63 with The outer arc surface of the guide shaft 7 is movably sleeved with a spring 8, which is located between the triangular plate 63 and the sliding seat 61. The triangular plate 63 drives the guide shaft 7 to move away from the frame 1 and compresses the spring 8. The spring 8 stores force to increase the force of pushing the frame 2. The front and rear sides of the frame 1 are provided with protective strips 9, and the screw rods 64 are respectively located inside the vertically corresponding protective strips 9. The protective strips 9 provide protection for the screw rods 64. The right end of the frame 1 is provided with a protective shell 10, and the synchronous pulleys 65 are located inside the protective shell 10. The protective shell 10 provides protection for the synchronous pulleys 65 and the synchronous belt;

[0025] Among them: it also includes a PLC controller 5, which is arranged at the left end of the frame 1, the input end of the electric push rod 62 is electrically connected to the output end of the PLC controller 5, and the input end of the PLC controller 5 is electrically connected to an external power supply. The PLC controller 5 facilitates automatic control of the electrical appliance.

[0026] The working principle of a novel plate and frame filter press provided by the utility model is as follows: when in use, the material to be filtered is injected into the feed pipe on the right side of the frame 1 under high pressure, the material will pass through the through hole on the top of the frame 2 and be dispersed between the two filter plates 11 of the adjacent frame 2, and under the pressure of the material itself, the liquid inside it will pass through the filter holes of the filter plate 11 and enter between the two filter plates 11 inside the same frame 2, and then be discharged to the outside through the liquid outlet hole and the liquid outlet pipe at the bottom of the frame 2, and the filter residue part will stay between the two frames 2 to realize the pressure filtration of the material. After the filter residue is filled with the material and cannot be filtered, the PLC controller 5 is regulated and the electro-hydraulic push rod 4 is operated. The telescopic end of the electro-hydraulic push rod 4 drives the pressing plate 3 to move to the left, and the pressing plate 3 is separated from the leftmost frame 2. The two electric push rods 62 operate synchronously, and the telescopic end of the electric push rod 62 drives the triangular plate 63 to move upward, and the triangular plate 63 contacts the convex heads at the front and rear ends of the leftmost frame 2. The inclined surface of the triangular plate 63 will drive the leftmost frame 2 to move to the left, and the leftmost frame 2 The servo motor 66 is operated, and the output shaft of the servo motor 66 drives the two screw rods 64 to rotate through the synchronous pulley 65 and the synchronous belt, and the screw rod 64 drives the sliding seat 61 to move to the right. After the sliding seat 61 moves a distance of the thickness of the frame 2, the servo motor 66 stops running, and the telescopic end of the electric push rod 62 extends out to drive the triangular plate 63 to move close to the frame 2 and push the frame 2 to move to the right, so that the frame 2 can be separated in turn, which is convenient for the discharge of the internal filter residue. When the filter residue is discharged, the telescopic end of the electro-hydraulic push rod 4 extends out to push the pressure plate 3 to move to the right, and the pressure plate 3 will push the frame 2 on the right side to squeeze each other, so that a sealed cavity will be formed between the frame 2 and the frame 2, and filtering can continue.

[0027] It is worth noting that the electro-hydraulic push rod 4, PLC controller 5, electric push rod 62 and servo motor 66 disclosed in the above embodiments can be freely configured according to the actual application scenario. The PLC controller 5 can choose a PLC controller with model FX3G-24MT / ES-A, the electric push rod 62 can choose an electric push rod with model LX-700, the servo motor 66 can choose a servo motor with model 1FK7060-5AF71-1SG0, the electro-hydraulic push rod 4 can choose an electro-hydraulic push rod with model DTYZ series, and the PLC controller 5 controls the operation of the electro-hydraulic push rod 4, the electric push rod 62 and the servo motor 66 using methods commonly used in the prior art.

[0028] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A new type of plate and frame filter press, characterized by: It comprises a frame (1) and a separation unit (6); Frame (1): The right end of the middle part thereof is slidably connected to a frame body (2) that is evenly distributed, the inside of the frame body (2) is provided with filter plates (11) that are symmetrically distributed, and the left end of the inside of the frame (1) is slidably connected to a pressure plate (3); The separation unit (6) comprises a sliding seat (61), an electric push rod (62) and a triangular plate (63), wherein the sliding seat (61) is slidably connected to the front and rear sides of the frame (1), the middle of the sliding seat (61) is provided with an electric push rod (62), and the telescopic end of the electric push rod (62) is provided with a triangular plate (63), and the triangular plate (63) is arranged in cooperation with the frame (2) corresponding to the longitudinal direction; Wherein: it also includes a PLC controller (5), the PLC controller (5) is arranged at the left end of the frame (1), the input end of the electric push rod (62) is electrically connected to the output end of the PLC controller (5), and the input end of the PLC controller (5) is electrically connected to an external power supply.

2. A novel plate-frame filter press according to claim 1, characterized in that: An electro-hydraulic push rod (4) is provided at the left end of the frame (1), the telescopic end of the electro-hydraulic push rod (4) is fixedly connected to the left side surface of the pressing plate (3), and the input end of the electro-hydraulic push rod (4) is electrically connected to the output end of the PLC controller (5).

3. A novel plate-frame filter press according to claim 1, characterized in that: The separation unit (6) further comprises a screw rod (64), wherein the screw rod (64) is rotatably connected to the front and rear ends of the frame (1) via bearings, and the sliding seat (61) is respectively threadedly connected to the vertically corresponding screw rods (64).

4. A novel plate-frame filter press according to claim 3, characterized in that: The separation unit (6) further comprises a synchronous pulley (65) and a servo motor (66); the servo motor (66) is arranged at the right end of the frame (1); the right end of the screw rod (64) and the output shaft of the servo motor (66) are both provided with a synchronous pulley (65); the three synchronous pulleys (65) are connected by a same synchronous belt transmission.

5. A novel plate-frame filter press according to claim 1, characterized in that: The sides of the triangular plates (63) away from the frame (1) are each provided with a guide shaft (7), and the guide shafts (7) are respectively slidably connected to the longitudinally adjacent sliding seats (61).

6. A novel plate-frame filter press according to claim 5, characterized in that: A spring (8) is movably sleeved on the outer arc surface of the guide shaft (7), and the spring (8) is located between the triangular plate (63) and the sliding seat (61).

7. A novel plate-frame filter press according to claim 4, characterized in that: The front and rear sides of the frame (1) are both provided with protection strips (9), the screw rods (64) are respectively located inside the vertically corresponding protection strips (9), the right end of the frame (1) is provided with a protection shell (10), and the synchronous pulleys (65) are all located inside the protection shell (10).

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