Filter residue collecting device of plate-and-frame filter press

Abstract

The utility model discloses a filter residue collecting device of a plate-and-frame filter press, which belongs to the technical field of auxiliary equipment of the plate-and-frame filter press and comprises a support frame used for supporting the plate-and-frame filter press, a filter residue collecting hopper used for collecting filter residues of the plate-and-frame filter press is welded inside the support frame, a cross rod is welded inside the filter residue collecting hopper, and the cross rod is connected with a support rod. A conical protection cover used for protection is installed at the end of the cross rod, a motor is installed on the inner top wall of the conical protection cover, an output shaft of the motor is connected with a connecting shaft through a coupler, a rotating disc is welded to the end, away from the motor, of the connecting shaft, and two rotating shafts are symmetrically connected to the periphery of the rotating disc; according to the filter residue collecting device of the plate-and-frame filter press, the crushing capacity of the filter residues is improved, more occupied space in the transportation process is reduced, the loading capacity of a transportation vehicle is increased, and the transportation frequency and cost are reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of auxiliary equipment for plate and frame filter presses, and in particular, it is a filter residue collection device for plate and frame filter presses. Background Technology

[0002] Plate and frame filter presses are commonly used solid-liquid separation equipment, widely applied in industrial production across chemical, pharmaceutical, food, and environmental protection fields. Their working principle involves applying pressure between filter plates, forcing the liquid in the suspension through the filter cloth, while solid particles are trapped between the plates to form filter cake. After the plate and frame filter press completes the filtration process, the filter cake needs to be collected. Traditional filter cake collection devices can meet basic usage requirements, but their ability to crush the filter cake is weak. Incompletely crushed filter cake is usually large in volume and hard in texture, taking up more space during transportation, reducing the load capacity of transport vehicles, and increasing the number of transport trips and costs.

[0003] A search revealed Chinese patent documents (authorization announcement number CN222623765U). This utility model relates to the field of plate and frame filter press technology and proposes a filter cake collection device for plate and frame filter presses. The device includes a base plate, on which the plate and frame filter press body is mounted. A filter cake collection mechanism is provided on the upper surface of the base plate. The filter cake collection mechanism includes two support columns fixed to the upper surface of the base plate. An mounting plate is fixedly connected to the upper surface of the support columns. A threaded rod is rotatably connected to the upper surface of the mounting plate via a bearing. A threaded ring is threaded onto the outer surface of the threaded rod. Two movable plates are fixedly connected to the outer surface of the threaded ring. A push rod is fixedly connected to the bottom surface of each movable plate. The bottom end of the push rod penetrates the mounting plate and extends to the lower part of the mounting plate. A telescopic spring is fixedly connected to the bottom end of each push rod. A vibrating plate is fixedly connected to the bottom end of the telescopic spring. The above technical solution solves the problem that in the existing technology, after the sewage filtration is completed, it is still necessary to manually clean the filter cake inside the plate and frame filter press, which is quite troublesome. The device can meet the basic usage requirements, but the filter cake crushing ability is weak. The insufficiently crushed filter cake is usually large in volume and hard in texture, which will take up more space during transportation, resulting in a reduction in the loading capacity of the transport vehicle and an increase in the number of transportations and costs. Utility Model Content

[0004] The purpose of this invention is to provide a filter cake collection device for plate and frame filter presses to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a filter cake collection device for a plate and frame filter press, comprising a support frame for supporting the plate and frame filter press, wherein a filter cake collection hopper for collecting filter cake from the plate and frame filter press is welded inside the support frame;

[0006] The filter cake collection hopper has a crossbar welded inside. A conical protective cover is installed at the end of the crossbar for protection. A motor is installed on the inner top wall of the conical protective cover. The output shaft of the motor is connected to a connecting shaft through a coupling. A rotating disk is welded to the end of the connecting shaft away from the motor. Two rotating shafts are symmetrically connected to the outer periphery of the rotating disk. Crushing wheels for crushing filter cake of the plate and frame filter press are rotatably connected to the outer periphery of the two rotating shafts.

[0007] Preferably, the bottom of the filter residue collection hopper is connected to a screening tube for screening the particle size of the filter residue from the plate and frame filter press, and the vertical inner wall of the screening tube is provided with a guide groove for guiding.

[0008] Preferably, a spring is connected inside the guide groove, one end of the spring is connected to a movable frame, and a screening disc for screening is installed on the top of the movable frame.

[0009] Preferably, the bottom of the screening tube is connected to a discharge hopper for guiding the filter cake of the plate and frame filter press, and a control valve for controlling the discharge speed of the filter cake of the plate and frame filter press can be installed inside the discharge hopper.

[0010] Preferably, a thrust plate is welded to the side of the support frame, a main beam is welded between the support frame and the thrust plate, and multiple filtration mechanisms for filtration are slidably installed on the outer periphery of the main beam, with pull plates installed on both sides of each of the multiple filtration mechanisms.

[0011] Preferably, a hydraulic cylinder is mounted on the side of the support frame, the movable part of the hydraulic cylinder is connected to a telescopic rod, and a clamping plate for pressing is mounted on the end of the telescopic rod.

[0012] Preferably, the side of the thrust plate is connected to a feed washing pipe.

[0013] Compared with the prior art, the technical effects and advantages of this utility model are as follows:

[0014] This plate and frame filter press filter cake collection device benefits from the structure of the crushing wheel. The motor drives the connecting shaft and the rotating disk to rotate, and the rotating disk drives the rotating shaft and the crushing wheel to rotate. The crushing wheel crushes the filter cake plates on the screening plate. Compared with the traditional plate and frame filter press filter cake collection device, which has a weak filter cake crushing capacity, this structure increases the filter cake crushing capacity, reduces the space occupied during transportation, increases the loading capacity of the transport vehicle, and reduces the number of transportation trips and costs.

[0015] This plate and frame filter press filter cake collection device benefits from the structure of the screening tube. When the filter cake on the screening disc is too large or too much, the crushing wheel squeezes the screening disc, and the screening disc drives the moving frame to squeeze the spring. The spring is compressed, which plays a buffering role. Due to the action of the spring, the contact between the filter cake on the screening disc and the crushing wheel can be increased, thus increasing the crushing efficiency. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the present invention;

[0019] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0020] Figure 4 For the present utility model Figure 3 Enlarged view of point A in the middle;

[0021] Figure 5 For the present utility model Figure 3 Enlarged view of point B in the middle.

[0022] Explanation of reference numerals in the attached figures:

[0023] In the diagram: 1. Support frame; 101. Main beam; 102. Thrust plate; 103. Pressure plate; 104. Filtering mechanism; 105. Pulling plate; 106. Feed washing pipe; 107. Hydraulic cylinder; 108. Telescopic rod; 2. Filter residue collection hopper; 201. Crossbar; 202. Conical protective cover; 203. Motor; 204. Connecting shaft; 205. Rotating disc; 206. Rotating shaft; 207. Crushing wheel; 3. Screening pipe; 301. Guide groove; 302. Moving frame; 303. Screening disc; 304. Spring; 305. Discharge hopper. Detailed Implementation

[0024] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0025] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0026] like Figures 1 to 5The plate and frame filter press filter cake collection device shown includes a support frame 1 for supporting the plate and frame filter press, and a filter cake collection hopper 2 for collecting filter cake from the plate and frame filter press is welded inside the support frame 1.

[0027] A crossbar 201 is welded inside the filter cake collection hopper 2. A conical protective cover 202 is installed at the end of the crossbar 201 for protection. A motor 203 is installed on the inner top wall of the conical protective cover 202. The output shaft of the motor 203 is connected to a connecting shaft 204 through a coupling. A rotating disk 205 is welded to the end of the connecting shaft 204 away from the motor 203. Two rotating shafts 206 are symmetrically connected to the outer periphery of the rotating disk 205. Crushing wheels 207 for crushing filter cake of the plate and frame filter press are rotatably connected to the outer periphery of the two rotating shafts 206. When the motor 203 is turned on, the motor 203 drives the connecting shaft 204 and the rotating disk 205 to rotate. The rotating disk 205 drives the rotating shaft 206 and the crushing wheel 207 to rotate. The crushing wheel 207 crushes the filter cake plate on the screening disk 303.

[0028] The bottom of the filter cake collection hopper 2 is connected to a screening tube 3 for screening the particle size of the filter cake from the plate and frame filter press. The vertical inner wall of the screening tube 3 is provided with a guide groove 301 for guiding. A spring 304 is connected inside the guide groove 301. One end of the spring 304 is connected to a moving frame 302. A screening disc 303 for screening is installed on the top of the moving frame 302. When the filter cake on the screening disc 303 is too large or too much, the crushing wheel 207 squeezes the screening disc 303. The screening disc 303 drives the moving frame 302 to squeeze the spring 304. The spring 304 is compressed, which plays a buffering role. Due to the action of the spring 304, the contact between the filter cake on the screening disc 303 and the crushing wheel 207 can be increased, thereby increasing the crushing efficiency.

[0029] The bottom of the screening tube 3 is connected to a discharge hopper 305 for guiding the filter cake of the plate and frame filter press. The discharge hopper 305 can be equipped with a control valve to control the discharge speed of the filter cake of the plate and frame filter press. The crushed filter cake enters the discharge hopper 305 through the screening disc 303 and can be discharged through the discharge hopper 305.

[0030] A thrust plate 102 is welded to the side of the support frame 1. The thrust plate 102 is fixed to one end of the main beam and is an important support point of the filter press. Its function is to bear the compressive force and transfer it to the main beam 101. The thrust plate 102 is usually provided with interfaces such as feed port and washing port for connecting the feed washing pipe 106. The main beam 101 is welded between the support frame 1 and the thrust plate 102. The main beam 101 is usually made of high-quality carbon steel or stainless steel. It has sufficient strength and rigidity to withstand the huge pressure during the filtration process. The length and spacing of the main beam are designed according to the model and filtration area of ​​the filter press to ensure that the filter plates and filter frames can be stably installed on it. Multiple filtration mechanisms 104 for filtration are slidably installed on the outer periphery of the main beam 101. The filtration mechanism 104 consists of filter plates, filter frames and filter cloth. Pull plates 105 are installed on both sides of the multiple filtration mechanisms 104. The pull plates 105 are used to automatically pull open the filter plates after filtration to discharge the filter cake. It typically consists of a motor, chain, sprocket, and plate-pulling trolley. The motor drives the chain and sprocket, which in turn move the plate-pulling trolley along the main beam, sequentially pulling open the filter plates. This plate-pulling device improves work efficiency and reduces manual labor intensity. A hydraulic cylinder 107 is mounted on the side of the support frame 1. The hydraulic cylinder 107 is currently the most commonly used clamping method in plate and frame filter presses. It mainly consists of a hydraulic cylinder, oil pump, oil tank, and control valve. The oil pump delivers hydraulic oil to the hydraulic cylinder, pushing the piston to move, thereby achieving the clamping and releasing operation of the pressing plates. The hydraulic clamping device has advantages such as large clamping force, convenient operation, and high degree of automation. A telescopic rod 108 is connected to the movable part of the hydraulic cylinder 107. A pressing plate 103 for pressing is installed at the end of the telescopic rod 108. The pressing plate 103 is installed at the other end of the main beam 101 and can slide on the main beam 101. Pressure is applied to the clamping plate 103 by a clamping device (such as a hydraulic cylinder, mechanical screw, etc.) to make the filter plate and filter frame fit tightly together, forming a sealed filter chamber. The clamping plate 103 is also provided with a corresponding interface, which corresponds to the interface on the thrust plate 102. The side of the thrust plate 102 is connected to the feed washing pipe 106. The hydraulic cylinder 107 drives the telescopic rod 108 and the clamping plate 103 to squeeze the filter mechanism 104 to form a filter cake plate. The pull plate 105 drives the filter mechanism 104 to move, and the filter cake plate falls onto the screening disc 303 through the filter cake collection hopper 2.

[0031] Working principle

[0032] In operation, the filter cake collection device for this plate and frame filter press uses a hydraulic cylinder 107 to drive a telescopic rod 108 and a pressing plate 103 to compress the filter mechanism 104, forming a filter cake plate. A pull plate 105 moves the filter mechanism 104, and the filter cake plate falls through the filter cake collection hopper 2 onto the screening disc 303. The motor 203 is then turned on, causing the connecting shaft 204 and the rotating disc 205 to rotate. The rotating disc 205 then drives the rotating shaft 206 and the crushing wheel 207 to rotate. The crushing wheel 207 impacts the screening disc 303. The filter residue on plate 03 is crushed, and the crushed filter residue enters the discharge hopper 305 through the screening plate 303 and can be discharged through the discharge hopper 305. When the filter residue on the screening plate 303 is too large or too much, the crushing wheel 207 squeezes the screening plate 303, and the screening plate 303 drives the moving frame 302 to squeeze the spring 304. The spring 304 is compressed and plays a buffering role. Due to the action of the spring 304, the contact between the filter residue on the screening plate 303 and the crushing wheel 207 can be increased, thereby increasing the crushing efficiency.

[0033] It should be noted that in this article, relational terms such as one and two are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A filter cake collection device for a plate-and-frame filter press, comprising a support frame (1) for supporting a plate-and-frame filter press, characterized in that: The support frame (1) is internally welded with a filter cake collection hopper (2) for collecting filter cake from a plate and frame filter press; The filter cake collection hopper (2) has a crossbar (201) welded inside. A conical protective cover (202) for protection is installed at the end of the crossbar (201). A motor (203) is installed on the inner top wall of the conical protective cover (202). The output shaft of the motor (203) is connected to a connecting shaft (204) through a coupling. A rotating disk (205) is welded to the end of the connecting shaft (204) away from the motor (203). Two rotating shafts (206) are symmetrically connected to the outer periphery of the rotating disk (205). Crushing wheels (207) for crushing filter cake of the plate and frame filter press are rotatably connected to the outer periphery of the two rotating shafts (206).

2. A filter cake collection device for a plate and frame filter press according to claim 1, characterized in that: The bottom of the filter cake collection hopper (2) is connected to a screening tube (3) for screening the particle size of the filter cake of the plate and frame filter press. The vertical inner wall of the screening tube (3) is provided with a guide groove (301) for guiding.

3. A filter cake collection device for a plate and frame filter press according to claim 2, characterised in that: A spring (304) is connected inside the guide groove (301), and a movable frame (302) is connected to one end of the spring (304). A screening disc (303) for screening is installed on the top of the movable frame (302).

4. A filter cake collection device for a plate and frame filter press according to claim 2, characterized in that: The bottom of the screening tube (3) is connected to a discharge hopper (305) for guiding the filter residue of the plate and frame filter press. The discharge hopper (305) may be equipped with a control valve to control the discharge speed of the filter residue of the plate and frame filter press.

5. A filter cake collection device for a plate and frame filter press according to claim 1, characterized in that: A thrust plate (102) is welded to the side of the support frame (1), and a main beam (101) is welded between the support frame (1) and the thrust plate (102). Multiple filter mechanisms (104) for filtering are slidably installed on the outer periphery of the main beam (101), and pull plates (105) are installed on both sides of the multiple filter mechanisms (104).

6. A filter cake collection device for a plate and frame filter press according to claim 5, characterised in that: A hydraulic cylinder (107) is installed on the side of the support frame (1), and a telescopic rod (108) is connected to the movable part of the hydraulic cylinder (107). A pressing plate (103) for pressing is installed at the end of the telescopic rod (108).

7. A filter cake collection device for a plate and frame filter press according to claim 5, characterized in that: The side of the thrust plate (102) is connected to the feed washing pipe (106).

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