Porcelain insulator slurry filter pressing device and method based on dual pressure

Abstract

The invention discloses a porcelain insulator slurry filter pressing device and method based on dual pressure, and the device comprises a basic assembly which comprises a supporting frame, a pressing plate and a thrust plate which are respectively arranged at two sides in the supporting frame, and hydraulic telescopic equipment arranged on the supporting frame; a plurality of groups of filter plate mechanisms and a plurality of groups of filter frame mechanisms; wherein the filter plate mechanism comprises a bearing filter plate, movable pressing plates are movably embedded in the two sides of the bearing filter plate, and a driving part allowing a pressure medium to enter to drive the movable pressing plates to move is arranged in the bearing filter plate; the filter frame mechanism comprises a filter frame main body and filter cloth arranged in the filter frame main body, and two ends of the filter cloth are connected with a cleaning part arranged on the filter frame main body. The filter pressing process is divided into double pressurization modes, slurry is injected into the filter chamber through hydraulic pressure in the early stage, and when the slurry in the filter chamber has certain hardness, the water pressure secondary pressurization mode is adopted to accelerate discharge of water in the slurry, improve the filter pressing efficiency and effectively improve the dehydration rate of the slurry.

Description

Technical Field

[0001] The invention relates to the technical field of porcelain insulator slurry processing, in particular to a porcelain insulator slurry filter pressing device and method based on double pressure. Background Art

[0002] As an important component in the power system, the quality and performance of porcelain insulators are directly related to the safe and stable operation of the power system. In the manufacturing process of porcelain insulators, slurry filtration is one of the key links. It is necessary to remove excess moisture in the slurry through a filter press device to make a mud cake for the next process. At present, the widely used filter press device is usually a plate and frame filter press device. Although this device can remove excess moisture in the porcelain insulator slurry, it still has the following defects when used: Traditional plate and frame filter press equipment uses hydraulic filter pressing and dehydration, that is, the slurry water is discharged by pushing the hydraulic telescopic device forward. However, in this method, each filter plate is subjected to uneven force, resulting in large differences in slurry water content, affecting the slurry quality. In addition, when using a single hydraulic filter press, the slurry in the filter cloth has a certain hardness in the later stage of the filter press, and it is difficult to apply hydraulic pressure, which can easily cause damage to the hydraulic equipment, thereby affecting the production cycle and slurry quality. After the slurry removes water and forms a mud cake, it is easy to stick to the filter cloth. Therefore, after the filter plate is opened, it takes a lot of time to separate the two manually, which is labor-intensive and inconvenient to use. After the mud cake is separated from the filter cloth, some filter residue particles will adhere to the filter cloth. Each time the work is completed, it needs to be cleaned to remove the surface residue. However, it is usually washed manually with a water gun, which has low cleaning efficiency and poor cleaning effect.

[0003] To this end, we propose a porcelain insulator slurry filter press device and method based on double pressure. Summary of the invention

[0004] The object of the present invention is to provide a porcelain insulator slurry filter press device and method based on dual pressure to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A porcelain insulator slurry filter press device based on double pressure, comprising: The basic assembly includes a support frame, a pressure plate and a thrust plate respectively arranged on both sides of the support frame, and a hydraulic telescopic device arranged on the support frame for driving the pressure plate to move toward the thrust plate; and a plurality of groups of filter plate mechanisms and a plurality of groups of filter frame mechanisms, which are alternately arranged and slidably arranged on the support frame and located between the pressure plate and the thrust plate, and when the filter plate mechanism and the filter frame mechanism are in contact, a filter chamber for slurry to enter is formed between the two; The filter plate mechanism comprises a supporting filter plate, both sides of which are movably embedded with movable pressure plates, and a driving part for allowing pressure medium to enter and drive the movable pressure plate to move is provided in the supporting filter plate; The filter frame mechanism comprises a filter frame body and a filter cloth which is U-shaped and arranged in the filter frame body for contacting with a movable pressure plate. Both sides of the filter frame body are provided with filter press ports for the movable pressure plate to enter. Both ends of the filter cloth respectively penetrate the two sides of the top of the filter frame body and are connected to a cleaning part arranged on the filter frame body. The supporting filter plate and the filter frame body are provided with a drainage channel connected with the drainage pipeline and a feed channel connected with the feed pipeline to allow the slurry to enter the filter chamber. The drainage pipeline and the feed pipeline are both arranged on the thrust plate.

[0006] A further improvement is that the drainage channel includes a second communication port opened around the supporting filter plate, a first communication port opened around the filter frame body for connecting the second communication port, and a plurality of groups of drainage ports connected to the first communication port are opened on the inner wall of the filter frame body and located on the inner side of the filter cloth; The feed channel includes a feed port opened in the middle of the supporting filter plate, a feed pipe inserted in the middle of the movable pressure plate and with one end extending into the feed port, and a feed port 1 opened on both sides of the filter cloth and located in the middle of the filter frame body for connecting with the feed pipe. Support porous plates are fixedly provided on both sides of the inner cavity of the filter frame body, and two groups of the support porous plates are respectively in contact with the inner walls on both sides of the filter cloth located in the filter frame body, and a connecting pipe for connecting with the feed port 1 is provided through the middle of the two groups of the support porous plates.

[0007] A further improvement is that the driving part includes a cavity opened in the supporting filter plate, the cavity is connected to a pressure medium circulation pipeline for supplying pressure medium through a pipeline, and the outer walls on both sides of the cavity are symmetrically provided with a plurality of groups of movable grooves, and a piston group is movably provided in the movable groove, and one end of the piston rod of the piston group passes through the side wall of the cavity and is connected to the corresponding movable pressure plate, and the piston group is driven by the pressure medium entering the cavity to move the movable pressure plate, and the outer wall of the piston rod of the piston group is sleeved with an elastic member for driving the movable pressure plate to reset after the pressure medium is discharged.

[0008] A further improvement is that the cleaning unit comprises: A winding roller 1 is rotatably arranged on the top of the filter frame body and winds one end of the filter cloth; The outer shell is connected to the top of the filter frame body through a bracket and is located above the winding roller one. A through hole is opened at the bottom of the outer shell for the other end of the filter cloth to enter. Two sets of guide rollers two for guiding the filter cloth are horizontally arranged on the top of the inner cavity of the outer shell. A winding roller two for winding the other end of the filter cloth is rotatably arranged in the inner cavity of the outer shell at the bottom of the guide roller two. One end of the shaft of the winding roller two and the shaft of the winding roller one are connected by a gear set, and the other end of the shaft of the winding roller two is connected to a driving mechanism by a bevel gear set one; and a liquid spray nozzle is arranged on the inner wall of the outer shell for spraying cleaning liquid onto the filter cloth. The liquid spray nozzle is connected to a device for supplying cleaning liquid from the outside through a pipeline, and one side of the outer shell is connected to a drainage pipeline through a pipeline.

[0009] A further improvement is that brush plates are movably provided in the outer shell and contact the outer walls on both sides of the filter cloth respectively. One end of the two groups of brush plates are connected to the inner wall of one side of the outer shell through an elastic reset piece, and the other ends of the two groups of brush plates are connected to a contact rod after passing through the outer shell through a support rod. The contact rod slides and abuts against the edge of the outer wall of one side of a driving disk. The driving disk is fixedly sleeved on one end of the shaft of the second winding roller, and the outer wall of the driving disk is provided with several groups of arc-shaped protrusions for driving the contact rod to move toward the outer shell.

[0010] A further improvement is that both ends of the filter frame body are provided with a slider 1 for sliding connection with the support frame, the outer wall of the slider 1 is rotatably provided with a turntable, the inner edge of the turntable is embedded with a permanent magnet block 1, the slider 1 is slidably provided with an impact block, one side of the impact block is provided with a permanent magnet block 2 for adsorbing the permanent magnet block 1, the slider 1 is provided with an elastic member for driving the impact block to reset and impact the filter frame body when the permanent magnet block 1 and the permanent magnet block 2 do not correspond, the shaft of the turntable is connected to a guide roller 1 through a sprocket transmission group 1, and the guide roller 1 is rotatably provided at the bottom of the filter frame body for guiding the filter cloth.

[0011] A further improvement is that both ends of the supporting filter plate are provided with a sliding block two for sliding connection with the support frame, two sides of one end of the supporting filter plate are provided with a bidirectional screw for vertical rotation, the outer walls of the two groups of bidirectional screws and above the supporting filter plates are provided with a threaded sleeve with a scraper, the two groups of scrapers extend along the length direction of the supporting filter plate and are used to clean the movable pressure plates on both sides of the supporting filter plate respectively, the end of the scraper away from the bidirectional screw is movably sleeved on the outer wall of the guide rod, and the guide rod is vertically arranged at the other end of the supporting filter plate, the bidirectional screw is connected to a transmission rod through a sprocket transmission group two, one end of the transmission rod is rotatably connected to a sliding block two, and the other end is transmission connected to a driving mechanism.

[0012] A further improvement is that the driving mechanism comprises: A driving rotating rod with a flat key is provided on the outer wall, and the driving rotating rod is rotatably arranged in the mounting frame and is located above the filter frame mechanism and the filter plate mechanism, the mounting frame is connected to the supporting frame, and the driving rotating rod is connected to the output end of the rotating equipment arranged on one side of the mounting frame; and a plurality of groups of sleeves are movably sleeved on the outer wall of the driving rotating rod, and the inner wall of the sleeve is provided with a flat key groove adapted to the flat key, the outer wall of the sleeve is rotatably sleeved with a connecting frame, and a connecting rotating rod for connecting with a bevel gear set 1 or a transmission rod is rotatably inserted on the connecting frame, and the connecting rotating rod and the sleeve are connected through a bevel gear set 2.

[0013] A further improvement is that the feed port 1 and the end of the connecting pipe are adsorbed and connected via a magnetic adsorption member.

[0014] A double-pressure-based filtration method for porcelain insulator slurry comprises the following steps using the above-mentioned filtration device: S1: The pressure plate is driven to move toward the thrust plate through the hydraulic telescopic device, so that several groups of pressure plate mechanisms and several groups of filter frame mechanisms are tightly pressed together to form several sealed filter chambers; S2: Porcelain insulator slurry is fed into each filter chamber through the feed pipeline and feed channel, the water in the porcelain insulator slurry is filtered through the filter cloth and then discharged through the drainage channel and drainage pipeline, and the slurry forms a mud cake in the filter chamber; S3: injecting pressure medium into the supporting filter plate so that the driving unit drives the movable pressing plate to move to pressurize the mud cake in the filter chamber. After the preset pressurization time, the pressure medium is withdrawn from the supporting filter plate, and the driving unit drives the movable pressing plate to reset. Then, the pressing plate is reset through the hydraulic telescopic device, and the filter plate mechanism and the filter frame mechanism are separated in turn to discharge the mud cake. After the filter plate mechanism and the filter frame mechanism are separated, the filter cloth is processed by the cleaning unit.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention divides the filter pressing process into two pressurization methods. In the early stage, the slurry is injected into the filter chamber by hydraulic pressure. When the slurry in the filter chamber has a certain hardness, a secondary pressurization method of water pressure is used to accelerate the discharge of water in the slurry, improve the filter pressing efficiency, and effectively improve the slurry dehydration rate. In addition, the present invention adopts a double dehydration method to ensure the production cycle and slurry quality. The present invention injects water pressure into the filter plate mechanism by modifying the filter plate. During the secondary pressurization process, the pressure of each filter plate mechanism is the same, thereby ensuring that the moisture content of each mud cake is consistent, and no rough processing is required, and it can be used directly, thereby improving production efficiency and slurry quality. After the hydraulic pressure is applied, the water is withdrawn from the filter plate mechanism, and the movable pressing plate in the filter plate mechanism is contracted, so that the mud cake is effectively separated from the filter cloth, the separation work intensity is reduced, and the probability of slurry remaining on the filter cloth surface is reduced, so as to improve the operator's work efficiency and extend the service life of the hydraulic telescopic equipment; The present invention is provided with a cleaning part, and the driving mechanism drives the winding roller 2 to reel in the filter cloth and the winding roller 1 to unwind the filter cloth, so that the mud cake formed after the slurry is dehydrated can be better separated from the filter cloth, and there is no need to manually separate the two, thereby reducing the labor intensity and being easy to use; When the second winding roller in the cleaning part of the present invention rotates to wind the filter cloth, the cleaning liquid can be sprayed out through the liquid spray nozzle to clean the filter cloth, thereby reducing the slurry residue on the filter cloth and further extending the service life of the hydraulic telescopic device. The rotation of the second winding roller also drives the two groups of brush plates to reciprocate and rub the filter cloth, without manual flushing through a water gun. The cleaning efficiency is high and the cleaning effect is high, thereby further reducing the labor intensity and improving the filter press efficiency. When the filter cloth is wound, the present invention cooperates with the guide roller 1, the sprocket transmission group 1, the rotating disk and the impact block to make the filter frame body vibrate, so that the slurry is better separated from the filter cloth and is not easy to remain on the filter cloth, thereby improving the subsequent cleaning effect of the filter cloth; The invention drives the bidirectional screw rod simultaneously when the driving mechanism is working, and the bidirectional screw rod drives the scraper plate to reciprocate up and down, thereby scraping the slurry remaining on the movable pressing plate off the movable pressing plate, avoiding slurry waste and preventing the subsequent filtration effect on other slurries from being affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the device of the present invention; Figure 2 For the present invention Figure 1 Another perspective structural diagram; Figure 3 It is a cross-sectional view of the filter frame structure of the present invention; Figure 4 It is a cross-sectional view of the filter plate mechanism structure of the present invention; Figure 5 For the present invention Figure 4 Schematic diagram of the local structure in; Figure 6 For the present invention Figure 3 Schematic diagram of the local structure in; Figure 7 For the present invention Figure 6 A magnified schematic diagram of structure A.

[0017] In the figure: 100, basic component; 101, support frame; 102, pressure plate; 103, hydraulic telescopic device; 104, thrust plate; 200, filter frame mechanism; 201, filter frame body; 202, filter cloth; 203, feed port 1; 204, filter press port; 205, liquid discharge port; 206, connecting port 1; 207, supporting porous plate; 208, connecting pipe; 209, magnetic adsorption member; 210, guide roller 1; 211, winding roller 1; 212, housing; 213, winding roller 2; 214, guide roller 2; 215, liquid spray nozzle; 216, brush plate; 217, elastic reset member; 218, contact rod; 219, gear set; 220, drive disc; 221, arc-shaped protrusion; 222, slider one; 223, sprocket transmission group one; 224, impact block; 225, turntable; 226, permanent magnet block one; 300, filter plate mechanism; 301, load-bearing filter plate; 302, movable pressure plate; 303, connecting port two; 304, feed pipe; 305, slider two; 306, bidirectional screw; 307, transmission rod; 308, sprocket transmission group two; 309, scraper; 310, guide rod; 311, cavity; 312, piston group; 400, driving mechanism; 401, driving rotating rod; 402, rotating device; 403, connecting frame; 404, sleeve; 405, connecting rotating rod; 500, discharge pipeline; 600, feed pipeline; 700, pressure medium circulation pipeline. DETAILED DESCRIPTION

[0018] 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 described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-Figure 3 , a porcelain insulator slurry filter press device based on double pressure, comprising: The basic assembly 100 includes a support frame 101, a pressure plate 102 and a thrust plate 104 respectively arranged on both sides of the support frame 101, and a hydraulic telescopic device 103 arranged on the support frame 101 for driving the pressure plate 102 to move toward the thrust plate 104; The above-mentioned support frame 101, for example, includes two groups of frame bodies arranged at intervals and guide rods arranged at the front and rear sides between the two groups of frame bodies, the thrust plate 104 is fixed to the inner side wall of one frame body, and the pressure plate 102 is movably sleeved on the outer wall of the guide rod; and a plurality of groups of filter plate mechanisms 300 and a plurality of groups of filter frame mechanisms 200 are alternately arranged and slidably arranged on the support frame 101 and located between the pressure plate 102 and the thrust plate 104, and when the filter plate mechanism 300 and the filter frame mechanism 200 are in contact, a filter chamber for slurry to enter is formed between the two. The filter plate mechanism 300 includes a supporting filter plate 301, and movable pressure plates 302 are movably embedded on both sides of the supporting filter plate 301. A driving part for allowing a pressure medium to enter and drive the movable pressure plate 302 to move is provided in the supporting filter plate 301. The pressure medium is, for example, water pressure. Initially, the outer surface of the movable pressing plate 302 is flush with the outer surface of the supporting filter plate 301. When water pressure is injected into the supporting filter plate 301, the driving part drives the movable pressing plate 302 to move in the filter chamber to further pressurize the slurry in the filter chamber. The pressure of each movable pressing plate 302 is the same, and secondary pressurization is achieved to ensure that the moisture content of each mud cake is consistent. It does not need to be roughly processed and can be used directly, which improves production efficiency and improves the quality of mud cakes. The filter frame mechanism 200 includes a filter frame body 201 and a filter cloth 202 which is U-shaped and arranged in the filter frame body 201 for contacting with a movable pressing plate 302. The filter cloth 202 is used to filter water in the slurry. Figure 3 As shown, the other end of the filter cloth 202 sequentially passes through the top left side of the filter frame body 201, the bottom left side of the filter frame body 201, the bottom right side of the filter frame body 201 and the top right side of the filter frame body 201; Both sides of the filter frame body 201 are provided with filter press ports 204 for the movable pressing plate 302 to enter. When the filter frame body 201 and the supporting filter plate 301 are in contact, the filter chamber is composed of the inner wall of the filter press port 204, the outer wall of the filter cloth 202 and the outer wall of the movable pressing plate 302. The two ends of the filter cloth 202 respectively penetrate the two sides of the top of the filter frame body 201 and are connected to the cleaning part provided on the filter frame body 201, which is used to clean the filter cloth 202 to ensure the filtering quality of the filter cloth 202. The supporting filter plate 301 and the filter frame body 201 are provided with a drainage channel connected to the drainage pipeline 500 and a feed channel connected to the feed pipeline 600 for allowing the slurry to enter the filter chamber. The drainage pipeline 500 and the feed pipeline 600 are both provided on the thrust plate 104 .

[0020] See also Figure 4-Figure 6 As a preferred embodiment, the drainage channel of this embodiment includes a second communication port 303 provided around the supporting filter plate 301, a first communication port 206 provided around the filter frame body 201 and used for connecting the second communication port 303, and a plurality of groups of drainage ports 205 connected to the first communication port 206 are provided on the inner wall of the filter frame body 201 and located on the inner side of the filter cloth 202; When the supporting filter plate 301 and the filter frame body 201 are in contact, the second communication port 303 and the first communication port 206 are in communication. After the water in the slurry enters the filter frame body 201 through the filter cloth 202, the water enters the first communication port 206 through the drainage port 205. In this embodiment, the drainage pipeline 500 includes, for example, a pipeline inserted at one end of the thrust plate 104 and used to communicate with the corresponding first communication port 206 or the second communication port 303, and a water pump provided on the pipeline, which belongs to conventional equipment in the field and is not described in detail here. The feed channel includes a feed port opened in the middle of the supporting filter plate 301, a feed pipe 304 inserted in the middle of the movable pressing plate 302 and one end extending into the feed port, and a feed port 203 opened on both sides of the filter cloth 202 and located in the middle of the filter frame body 201 for connecting the feed pipe 304. The feed pipe 304 is ensured to be connected with the feed port when the movable pressing plate 302 moves. Support porous plates 207 are fixedly provided on both sides of the inner cavity of the filter frame body 201. The support porous plates 207 are plates with a plurality of through holes for allowing water to enter. Two groups of support porous plates 207 are respectively in contact with the inner walls on both sides of the filter cloth 202 located in the filter frame body 201. The support porous plates 207 ensure that the filter cloth 202 will not be damaged by pressure when the movable pressing plate 302 presses the slurry. A connecting pipe 208 for connecting with the feed port 203 is provided through the middle of the two groups of support porous plates 207. When the supporting filter plate 301 and the filter frame body 201 are in contact, the feed port 203, the connecting pipe 208, the feed pipe 304 and the through port are connected so that the slurry supplied by the feed pipeline 600 enters each filter chamber in sequence. In the present embodiment, the feed pipeline 600, for example, includes a pipeline inserted at one end of the thrust plate 104 and used to communicate with a corresponding feed port 203 or a feed pipe 304, and a feed pump arranged on the pipeline, etc., which are conventional equipment in the field and are not described in detail herein.

[0021] Preferably, the driving part of the present embodiment comprises a cavity 311 provided in the bearing filter plate 301, the cavity 311 has a rectangular frame-shaped vertical section, the cavity 311 is connected to a pressure medium circulation pipeline 700 for supplying pressure medium through a pipeline, the pressure medium circulation pipeline 700 comprises, for example, a main pipe and a plurality of hoses connected to the main pipe, the main pipe is connected to a pump body for supplying or extracting pressure medium from the outside, and the hoses are connected to the cavity 311; a plurality of groups of movable grooves are symmetrically provided on the outer walls of both sides of the cavity 311, a piston group 312 is movably provided in the movable groove, the piston group 312 has a T-shaped vertical section, comprises a piston rod and a piston connected to one end of the piston rod, one end of the piston rod of the piston group 312 penetrates the side wall of the cavity 311 and is connected to the corresponding movable pressure plate 302, the piston group 312 is driven by the pressure medium entering the cavity 311 to move the movable pressure plate 302, the outer wall of the piston rod of the piston group 312 is provided with an elastic member for driving the movable pressure plate 302 to reset after the water pressure is discharged, and the elastic member is, for example, a spring; The pressure medium circulation pipeline 700 inputs water pressure into the cavity 311 so that the piston group 312 drives the movable pressure plate 302 to move outward, and then the water pressure is discharged through the pressure medium circulation pipeline 700, and the elastic member drives the piston group 312 to drive the movable pressure plate 302 to reset.

[0022] Preferably, the feed port 203 and the end of the connecting pipe 208 of this embodiment are connected by adsorption via a magnetic adsorption component 209, which, for example, includes a magnetic ring 1 sewn at the feed port 203 of the filter cloth 202 and a magnetic ring 2 embedded in the end of the connecting pipe 208, to ensure stable connection between the feed port 203 on the filter cloth 202 and the connecting pipe 208. A plurality of feed ports 203 can be provided on the filter cloth 202. When in use, it is sufficient to ensure that two adjacent groups of feed ports 203 on the filter cloth 202 correspond to the two ends of the connecting pipe 208, respectively.

[0023] Preferably, the cleaning unit of this embodiment includes: A winding roller 211 is rotatably disposed on the top of the filter frame body 201 and winds one end of the filter cloth 202; The housing 212 is connected to the top of the filter frame body 201 through a bracket and is located above the winding roller 1 211. A through hole is provided at the bottom thereof for the other end of the filter cloth 202 to enter. Two sets of guide rollers 214 for guiding the filter cloth 202 are provided horizontally at the top of the inner cavity of the housing 212. Figure 3As shown, the filter cloth 202 has a horizontal conveying section a in the housing 212 through the guide roller 214, and the inner cavity of the housing 212 at the bottom of the guide roller 214 is rotatably provided with a winding roller 213 for winding the other end of the filter cloth 202, and one end of the shaft of the winding roller 213 and the shaft of the winding roller 1 211 are connected by a gear set 219. The gear set 219 is two sets of meshing gears, so that the winding roller 213 and the winding roller 1 211 rotate in opposite directions, so that when the winding roller 213 is rolling up the filter cloth 202, the winding roller 1 211 can unwind the filter cloth 202; The other end of the shaft of the winding roller 213 is connected to the driving mechanism 400 through a bevel gear set 1, which includes a bevel gear 1 sleeved on the other end of the shaft of the winding roller 213 and a bevel gear 2 meshing with the bevel gear 1. The shaft of the bevel gear 2 is rotatably arranged on the outer wall of the filter frame body 201 through a bearing mounting seat, and the shaft of the bevel gear 2 is connected to the driving mechanism 400; and a liquid spray nozzle 215, which is arranged on the inner wall of the shell 212 and is used to spray cleaning liquid to the filter cloth 202. The liquid spray nozzle 215 is connected to a device for supplying cleaning liquid from the outside through a pipeline. The device can be a pump body. The cleaning liquid is sprayed from the liquid spray nozzle 215 through the pump body and the pipeline to clean the filter cloth 202. One side of the shell 212 is connected to the drain pipeline 500 through a pipeline to discharge the cleaning liquid for cleaning the filter cloth 202.

[0024] As a preferred embodiment, the housing 212 of this embodiment is provided with brush plates 216 that are movable up and down and contact the outer walls of the filter cloth 202 on both sides, and two groups of brush plates 216 are in contact with the outer walls of the filter cloth 202 on both sides, such as Figure 3 As shown, the upper and lower brush plates 216 are specifically in contact with the upper and lower outer walls of the conveying section a respectively, and one end of the two groups of brush plates 216 is connected to the inner wall of one side of the shell 212 through an elastic reset member 217, and the elastic reset member 217 is, for example, an elastic telescopic rod. The other ends of the two groups of brush plates 216 pass through the shell 212 through a support rod and are connected to a contact rod 218. The contact rod 218 slides against the edge of the outer wall of one side of a driving disk 220, and a ball in contact with the driving disk 220 is embedded at the end of the contact rod 218. The driving disk 220 is fixedly sleeved on one end of the shaft of the winding roller 213, and the outer wall of the driving disk 220 is provided with a plurality of groups of arc-shaped protrusions 221 for driving the contact rod 218 to move toward the shell 212; The second winding roller 213 drives the driving disk 220 to rotate, and the driving disk 220 makes the arc-shaped protrusion 221 intermittently contact the contact rod 218, thereby pushing the contact rod 218 so that the two groups of brush plates 216 synchronously squeeze the elastic reset member 217. When the arc-shaped protrusion 221 separates from the contact rod 218, the brush plate 216 is reset under the action of the elastic reset member 217, so that the brush plate 216 can reciprocate to rub the rolled or unrolled filter cloth 202, thereby cleaning the filter cloth 202.

[0025] See also Figure 6 As a preferred embodiment, both ends of the filter frame body 201 of this embodiment are provided with a slider 222 for sliding connection with the support frame 101, and the slider 222 can be specifically movably sleeved on the outer wall of the guide rod in the support frame 101, and the outer wall of the slider 222 is rotatably provided with a turntable 225, and the inner edge of the turntable 225 is embedded with a permanent magnet block 226, and the slider 222 is slidably provided with a collision block 224, and one side of the collision block 224 is provided with a permanent magnet block 226 for adsorbing the permanent magnet block 226. That is, the permanent magnet block 1 226 and the permanent magnet block 2 are of opposite poles, and the slider 1 222 is provided with an elastic member for driving the impact block 224 to reset and impact the filter frame body 201 when the permanent magnet block 1 226 and the permanent magnet block 2 do not correspond. The elastic member is, for example, a spring. The shaft of the turntable 225 is connected to the guide roller 1 210 through a sprocket transmission group 1 223. The sprocket transmission group 1 223 includes a sprocket and a chain. The guide roller 1 210 is rotatably arranged at the bottom of the filter frame body 201 to guide the filter cloth 202.

[0026] After the filter plate mechanism 300 and the filter frame mechanism 200 are separated, the winding roller 213 rotates to rewind the filter cloth 202. The rewinding of the filter cloth 202 drives the guide roller 210 to rotate. The guide roller 210 drives the turntable 225 through the sprocket transmission group 223. When the turntable 225 rotates, the permanent magnet block 226 intermittently corresponds to the permanent magnet block 2. Under the action of the elastic member, the impact block 224 intermittently impacts the filter frame body 201, so that the filter frame body 201 vibrates, so that the slurry on the filter cloth 202 is better separated from the filter cloth 202.

[0027] Preferably, both ends of the supporting filter plate 301 of this embodiment are provided with a second slider 305 for sliding connection with the support frame 101, and the second slider 305 can be specifically movably sleeved on the outer wall of the guide rod in the support frame 101, and one end of the supporting filter plate 301 and both sides of the second slider 305 are vertically rotatably provided with a bidirectional screw 306, and the bottom end of the bidirectional screw 306 can be rotatably connected to the support block through a bearing, and the support block is fixed to the outer wall of one end of the supporting filter plate 301, and the height of the bidirectional screw 306 is higher than the height of the supporting filter plate 301, and the outer walls of the two sets of bidirectional screws 306 and located above the supporting filter plate 301 are threadedly sleeved The scraper 309 has a U-shaped cross-section. Both groups of scrapers 309 extend along the length direction of the supporting filter plate 301 and are used to clean the movable pressure plates 302 on both sides of the supporting filter plate 301 respectively. One end of the scraper 309 away from the bidirectional screw 306 is movably sleeved on the outer wall of the guide rod 310, and the guide rod 310 is vertically arranged on the other end of the supporting filter plate 301. The bidirectional screw 306 is connected to a transmission rod 307 through a sprocket transmission group 2 308. The sprocket transmission group 2 308 includes a sprocket and a chain. One end of the transmission rod 307 is rotatably connected to a slider 2 305, and the other end is transmission connected to the driving mechanism 400.

[0028] When the driving mechanism 400 is working, it not only reels or unwinds the filter cloth 202, but also drives the transmission rod 307. The transmission rod 307 drives the bidirectional screw 306 through the sprocket transmission group 2 308. The bidirectional screw 306 drives the scraper 309 to reciprocate up and down, thereby scraping the slurry remaining on the movable pressing plate 302 off the movable pressing plate 302. When not in use, the scraper 309 can be moved above the supporting filter plate 301 without affecting the contact between the supporting filter plate 301 and the filter frame body 201.

[0029] Preferably, the driving mechanism 400 of this embodiment includes: The outer wall of the driving rotating rod 401 is provided with a flat key, the driving rotating rod 401 is rotatably arranged in the mounting frame and is located above the filter frame mechanism 200 and the filter plate mechanism 300, the mounting frame is connected to the support frame 101, the mounting frame is U-shaped, the driving rotating rod 401 is connected to the output end of the rotating device 402 arranged on one side of the mounting frame, and the rotating device 402 is, for example, a servo motor and a reducer; and a plurality of groups of sleeves 404, the number of sleeves 404 is the sum of the number of the filter frame mechanism 200 and the filter plate mechanism 300, the sleeves 404 are movably sleeved on the outer wall of the driving rotating rod 401, and the inner wall of the sleeve 404 is provided with a flat key groove adapted to the flat key, through Through this arrangement, the sleeve 404 can drive the outer wall of the driving rotating rod 401 to move and drive the sleeve 404 to rotate when the driving rotating rod 401 rotates. The outer wall of the sleeve 404 is rotatably sleeved with a connecting frame 403, and the connecting frame 403 is L-shaped. A bearing is provided at the connection between the connecting frame 403 and the sleeve 404. A connecting rotating rod 405 for connecting to a bevel gear set 1 or a transmission rod 307 is rotatably inserted on the connecting frame 403. A bearing is provided at the connection between the connecting rotating rod 405 and the connecting frame 403. The connecting rotating rod 405 and the sleeve 404 are connected through a bevel gear set 2 for transmission. The bevel gear set 2 is two sets of meshing bevel gears.

[0030] A double-pressure-based filtration method for porcelain insulator slurry comprises the following steps using the above-mentioned filtration device: S1: The pressure plate 102 is driven to move toward the thrust plate 104 by the hydraulic telescopic device 103, so that several groups of pressure plate 102 mechanisms and several groups of filter frame mechanisms 200 are tightly pressed together to form several sealed filter chambers; S2: The porcelain insulator slurry is fed into each filter chamber through the feed pipeline 600 and the feed channel, and the water in the porcelain insulator slurry is filtered through the filter cloth 202 and then discharged through the drainage channel and the drainage pipeline 500, and the slurry forms a mud cake in the filter chamber; S3: injecting the pressure medium into the supporting filter plate 301 so that the driving unit drives the movable pressing plate 302 to move and pressurize the mud cake in the filter chamber. After the pressurization time is preset, the pressure medium is withdrawn from the supporting filter plate 301, and the driving unit drives the movable pressing plate 302 to reset. Then, the hydraulic expansion device 103 drives the pressing plate 102 to reset, and the filter plate mechanism 300 and the filter frame mechanism 200 are separated in turn to discharge the mud cake. Wherein, after the filter plate mechanism 300 and the filter frame mechanism 200 are separated, the filter cloth 202 is processed by the cleaning unit; After the filter plate mechanism 300 and the filter frame mechanism 200 are separated, the filter cloth 202 is processed by the cleaning unit. The specific working principle is as follows: The rotating device 402 drives the driving rod 401 to rotate, the driving rod 401 drives the sleeve 404, the sleeve 404 drives the connecting rod 405 through the bevel gear set 2, and the connecting rod 405 drives the bevel gear set 1 and the transmission rod 307; The rotation of the bevel gear set 1 drives the winding roller 213, and the winding roller 213 reels the filter cloth 202, so that the mud cake is separated from the filter cloth 202. When the winding roller 213 rotates and reels the filter cloth 202, the guide roller 1 210 is driven to rotate. The guide roller 1 210 drives the rotating disk 225 through the sprocket transmission set 1 223, and then the impact block 224 intermittently impacts the filter frame body 201, so that the filter frame body 201 vibrates, so that the slurry on the filter cloth 202 is better separated from the filter cloth 202. At the same time, the rotation of the winding roller 213 also causes the driving disk 220 to drive the two groups of brush plates 216 to reciprocate and rub the clean filter cloth 202, and cooperate with the liquid spray nozzle 215 to spray the cleaning liquid to clean the filter cloth 202; The transmission rod 307 rotates through the sprocket transmission group 2 308 to drive the bidirectional screw 306, and the bidirectional screw 306 drives the scraper 309 to reciprocate up and down, thereby scraping the slurry remaining on the movable pressing plate 302 off the movable pressing plate 302. After cleaning the movable pressing plate 302 and the filter cloth 202 for a preset time, the driving rotating rod 401 is driven to reverse by controlling the rotating device 402 to unwind the filter cloth 202.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A porcelain insulator slurry filter press device based on double pressure, characterized in that: include: The basic component (100) comprises a support frame (101), a pressure plate (102) and a thrust plate (104) respectively arranged on both sides of the support frame (101), and a hydraulic telescopic device (103) arranged on the support frame (101) for driving the pressure plate (102) to move toward the thrust plate (104); and a plurality of groups of filter plate mechanisms (300) and a plurality of groups of filter frame mechanisms (200), which are alternately arranged and slidably arranged on the support frame (101) and are located between the pressure plate (102) and the thrust plate (104), and when the filter plate mechanism (300) and the filter frame mechanism (200) are in contact, a filter chamber for slurry to enter is formed between the two. The filter plate mechanism (300) comprises a supporting filter plate (301), movable pressure plates (302) are movably embedded on both sides of the supporting filter plate (301), and a driving part for allowing pressure medium to enter and drive the movable pressure plate (302) to move is provided in the supporting filter plate (301); The filter frame mechanism (200) comprises a filter frame body (201) and a filter cloth (202) which is arranged in a U-shaped transmission inside the filter frame body (201) and is used to contact a movable pressure plate (302); both sides of the filter frame body (201) are provided with filter press ports (204) for the movable pressure plate (302) to enter; and both ends of the filter cloth (202) respectively penetrate both sides of the top of the filter frame body (201) and are connected to a cleaning portion arranged on the filter frame body (201); The supporting filter plate (301) and the filter frame body (201) are provided with a drainage channel connected to a drainage pipeline (500) and a feed channel connected to a feed pipeline (600) to allow slurry to enter the filter chamber. The drainage pipeline (500) and the feed pipeline (600) are both provided on the thrust plate (104).

2. The filter press device according to claim 1, characterized in that: The drainage channel comprises a second communication port (303) provided around the supporting filter plate (301), and a first communication port (206) provided around the filter frame body (201) and used for connecting the second communication port (303). The inner wall of the filter frame body (201) and located on the inner side of the filter cloth (202) are provided with a plurality of groups of drainage ports (205) connected with the first communication port (206); The feed channel comprises a feed port opened in the middle of the supporting filter plate (301), a feed pipe (304) inserted in the middle of the movable pressure plate (302) and with one end extending into the feed port, and a feed port 1 (203) opened on both sides of the filter cloth (202) and located in the middle of the filter frame body (201) for connecting with the feed pipe (304), and supporting porous plates (207) are fixedly provided on both sides of the inner cavity of the filter frame body (201), and two groups of the supporting porous plates (207) are respectively in contact with the inner walls on both sides of the filter cloth (202) located in the filter frame body (201), and a connecting pipe (208) for connecting with the feed port 1 (203) is provided through the middle of the two groups of the supporting porous plates (207).

3. The filter press device according to claim 1, characterized in that: The driving part comprises a cavity (311) opened in the supporting filter plate (301); the cavity (311) is connected to a pressure medium circulation pipeline (700) for supplying pressure medium through a pipeline; a plurality of groups of movable grooves are symmetrically opened on the outer walls of both sides of the cavity (311); a piston group (312) is movably arranged in the movable groove; one end of the piston rod of the piston group (312) passes through the side wall of the cavity (311) and is connected to the corresponding movable pressure plate (302); the piston group (312) is driven by the pressure medium entering the cavity (311) to move the movable pressure plate (302); and the outer wall of the piston rod of the piston group (312) is sleeved with an elastic member for driving the movable pressure plate (302) to reset after the pressure medium is discharged.

4. The filter press device according to claim 1, characterized in that: The cleaning unit comprises: A winding roller (211) is rotatably disposed on the top of the filter frame body (201) and winds one end of the filter cloth (202); The outer shell (212) is connected to the top of the filter frame body (201) through a bracket and is located above the winding roller (211). The bottom of the outer shell (212) is provided with a through hole for the other end of the filter cloth (202) to enter. The top of the inner cavity of the outer shell (212) is horizontally provided with two sets of guide rollers (214) for guiding the filter cloth (202). The inner cavity of the outer shell (212) at the bottom of the guide rollers (214) is rotatably provided with a winding roller (213) for winding the other end of the filter cloth (202). The winding roller (213) ) is connected to the shaft of the first winding roller (211) through a gear set (219), and the other end of the shaft of the second winding roller (213) is connected to the driving mechanism (400) through a bevel gear set (1); and a liquid spray nozzle (215) is provided on the inner wall of the housing (212) and is used to spray cleaning liquid onto the filter cloth (202), the liquid spray nozzle (215) is connected to an external device for supplying cleaning liquid through a pipeline, and one side of the housing (212) is connected to a liquid discharge pipeline (500) through a pipeline.

5. The filter press device according to claim 4, characterized in that: Brush plates (216) are movably arranged in the shell (212) and are in contact with the outer walls of the filter cloth (202) on both sides. One end of the two groups of brush plates (216) are connected to the inner wall of one side of the shell (212) through elastic reset members (217). The other ends of the two groups of brush plates (216) are connected to a contact rod (218) after penetrating the shell (212) through a support rod. The contact rod (218) is slidably abutted against the outer wall edge of one side of a driving disk (220). The driving disk (220) is fixedly sleeved on one end of the shaft of the second winding roller (213), and the outer wall of the driving disk (220) is provided with a plurality of groups of arc-shaped protrusions (221) for driving the contact rod (218) to move toward the shell (212).

6. The filter press device according to claim 4, characterized in that: Both ends of the filter frame body (201) are provided with a slider (222) for slidably connecting with the support frame (101); a turntable (225) is rotatably provided on the outer wall of the slider (222); a permanent magnet block (226) is embedded in the inner edge of the turntable (225); an impact block (224) is slidably provided on the slider (222); a permanent magnet block (226) for adsorbing the permanent magnet block (226) is provided on one side of the impact block (224); an elastic member is provided on the slider (222) for driving the impact block (224) to reset and impact the filter frame body (201) when the permanent magnet block (226) and the permanent magnet block (2) do not correspond; the shaft of the turntable (225) is connected to a guide roller (210) through a sprocket transmission group (223); the guide roller (210) is rotatably provided at the bottom of the filter frame body (201) for guiding the filter cloth (202).

7. The filter press device according to claim 4, characterized in that: Both ends of the supporting filter plate (301) are provided with two sliding blocks (305) for sliding connection with the support frame (101); both sides of one end of the supporting filter plate (301) are provided with bidirectional screws (306) for vertical rotation; the outer walls of the two groups of bidirectional screws (306) and the upper part of the supporting filter plate (301) are provided with scrapers (309) threadedly sleeved; the two groups of scrapers (309) extend along the length direction of the supporting filter plate (301) and are used to clean the supporting filter plate (301) respectively. ) on both sides of the movable pressure plates (302), one end of the scraper (309) away from the bidirectional screw (306) is movably sleeved on the outer wall of the guide rod (310), and the guide rod (310) is vertically arranged on the other end of the supporting filter plate (301), the bidirectional screw (306) is connected to a transmission rod (307) through a sprocket transmission group (308), one end of the transmission rod (307) is rotatably connected to a slider (305), and the other end is connected to the driving mechanism (400).

8. The filter press device according to claim 7, characterized in that: The driving mechanism (400) comprises: A driving rotating rod (401) with a flat key is provided on the outer wall, the driving rotating rod (401) is rotatably arranged in a mounting frame and is located above the filter frame mechanism (200) and the filter plate mechanism (300), the mounting frame is connected to the support frame (101), and the driving rotating rod (401) is connected to the output end of a rotating device (402) provided on one side of the mounting frame; and a plurality of sets of sleeves (404) are movably sleeved on the outer wall of the driving rotating rod (401), and the inner wall of the sleeve (404) is provided with a flat key groove adapted to the flat key, the outer wall of the sleeve (404) is rotatably sleeved with a connecting frame (403), and a connecting rotating rod (405) for connecting to a bevel gear set 1 or a transmission rod (307) is rotatably inserted on the connecting frame (403), and the connecting rotating rod (405) and the sleeve (404) are connected through a bevel gear set 2.

9. The filter press device according to claim 2, characterized in that: The feed port 1 (203) and the end of the connecting pipe (208) are connected by adsorption via a magnetic adsorption member (209).

10. A method for filtering porcelain insulator slurry based on dual pressure, using the filter pressing device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: driving the pressing plate (102) to move toward the thrust plate (104) through the hydraulic expansion and contraction device (103), so that a plurality of groups of pressing plate (102) mechanisms and a plurality of groups of filter frame mechanisms (200) are tightly pressed together to form a plurality of sealed filter chambers; S2: Porcelain insulator slurry is fed into each filter chamber through a feed pipe (600) and a feed channel, water in the porcelain insulator slurry is filtered through a filter cloth (202) and then discharged through a drainage channel and a drainage pipe (500), and the slurry forms a mud cake in the filter chamber; S3: injecting a pressure medium into the supporting filter plate (301) so that the driving unit drives the movable pressing plate (302) to move and pressurize the mud cake in the filter chamber. After the pressurization lasts for a preset time, the pressure medium is withdrawn from the supporting filter plate (301), and the driving unit drives the movable pressing plate (302) to reset. Then, the hydraulic expansion device (103) drives the pressing plate (102) to reset, and the filter plate mechanism (300) and the filter frame mechanism (200) are separated in sequence to discharge the mud cake. After the filter plate mechanism (300) and the filter frame mechanism (200) are separated, the filter cloth (202) is processed by the cleaning unit.

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