CN111559847B - Plate-and-frame filter press for waste treatment - Google Patents
Plate-and-frame filter press for waste treatment Download PDFInfo
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- CN111559847B CN111559847B CN202010371611.2A CN202010371611A CN111559847B CN 111559847 B CN111559847 B CN 111559847B CN 202010371611 A CN202010371611 A CN 202010371611A CN 111559847 B CN111559847 B CN 111559847B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
- B01D25/172—Plate spreading means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
- B01D25/21—Plate and frame presses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
- B01D25/21—Plate and frame presses
- B01D25/215—Construction of the filter plates, frames
Abstract
The invention relates to the technical field of solid-liquid separation, and discloses a plate-and-frame filter press for waste treatment, which comprises a frame, wherein a filtering unit block is arranged above the frame, the filtering unit block comprises a filtering frame and a filtering plate, the filtering unit block is formed by combining a plurality of groups of filtering frames and filtering plates, a push plate is arranged on the side surface of the filtering unit block, a pressing component is arranged between every two adjacent filtering unit blocks, a transmission mechanism is arranged on the pressing component, and the transmission mechanism is in transmission connection with a pressure self-adjusting device. This plate and frame filter press is used in waste treatment through the folding performance that utilizes the activity to strain the cavity for filter frame and filter plate can remove abundant extrusion filter cake in opposite directions, reduce the volume of filter cake when reducing the moisture content of filter cake, improve the vacant space of filter chamber, and the finite filter chamber of make full use of volume increases the volume of this plate and frame filter press single work filtration suspension, improves the filtration efficiency of this plate and frame filter press.
Description
Technical Field
The invention relates to the technical field of solid-liquid separation, in particular to a plate and frame filter press for waste treatment.
Background
The filter press is a device for separating solid and liquid of materials through pressure filtration, is widely applied to sludge treatment in chemical industry, dye, petroleum, ceramics, medicine, food, smelting and various industries, and the like, particularly to the treatment of municipal sludge, and has good separation effect, wide adaptability and unique superiority particularly to the separation of fine and viscous substances. The plate-and-frame filter press is composed of a group of filter chambers formed by alternately arranged filter plates and filter frames. The surface of the filter plate is provided with grooves, and the convex parts of the grooves are used for supporting the filter cloth. The filter frame and the filter plate are provided with through holes, and an integrated channel is formed after assembly, and suspension, washing water and filtrate can be introduced. The two sides of the plate and the frame are respectively provided with a handle which is supported on the beam, and the plate and the frame are pressed by the pressing device. The filter cloth between the plate and the frame plays the role of a sealing gasket. The plate and frame filter press is operated intermittently, each operation cycle consists of five stages of combination, filtering, washing, cake unloading and cleaning, and suspension is pressed into the filtering chamber by a feeding pump to form filter residue on the filtering cloth until the filtering chamber is full. The filtrate passes through the filter cloth and flows to the corner channel of the plate frame along the groove of the filter plate, and is discharged in a centralized way. After the filtration is finished, washing the filter residue by introducing washing water. After the washing, compressed air may be introduced to remove the remaining washing liquid. And then opening the filter press to discharge filter residues, cleaning the filter cloth, re-compacting the plate and the frame, and starting the next working cycle.
In the prior art, after the filter cake is formed, in order to further reduce the water content of the filter cake, gas is often introduced into a diaphragm of a diaphragm plate in the middle of a filter frame, the diaphragm is promoted to expand towards two sides by utilizing the air pressure to extrude the filter cake, then the filter frame is stopped and taken out, a certain space is formed in the filter chamber after the filter cake is extruded, but the space is not utilized, the limited filter chamber is not utilized to the maximum, the filtering efficiency of a plate-and-frame type filter press is further reduced, in addition, the practical application discovers that for the filter press which inputs suspension from one side only, the water content of the filter cake far away from a liquid inlet end is higher than that of the filter cake close to the liquid inlet end, the filter cake is more easily adhered to the filter cloth and is not easy to fall off due to the high water content, and the hydraulic pressure of a feed pump is lost in the transfer process, the hydraulic pressure far away from the feed pump is insufficient, so that the liquid is retained in the filter cake, resulting in a high water content of the filter cake.
Disclosure of Invention
Aiming at the defects of low working efficiency, large hydraulic loss and high water content of filter cakes of the plate-and-frame filter press in the prior art, the invention provides the plate-and-frame filter press for waste treatment, which has the advantages of high working efficiency, small hydraulic loss and low water content of the filter cakes and solves the problems in the prior art.
The invention provides the following technical scheme: a plate-and-frame filter press for waste treatment comprises a frame, wherein a filtering unit block is arranged above the frame and comprises a filtering frame and a filtering plate, the filtering unit block is formed by combining a plurality of groups of filtering frames and filtering plates, a push plate is arranged on the side surface of the filtering unit block, a pressing component is arranged between every two adjacent filtering unit blocks, a transmission mechanism is arranged on the pressing component and is in transmission connection with a pressure self-adjusting device, the pressure self-adjusting device is used for automatically adjusting the driving force of the pressing component on the filtering unit block, one end, far away from the transmission mechanism, of the pressure self-adjusting device is fixedly connected with a torque driving device, two sides of the filtering frame are respectively provided with a movable filtering cavity, a filtering chamber is formed among the filtering frame, the movable filtering cavity and the filtering plate, the movable filtering cavity can stretch left and right, one end, far away from the filtering frame, of the movable filtering cavity is contacted with the filtering plate, an air inlet and a pressure valve are respectively arranged above the movable filter cavity.
Preferably, the movable filter cavity is divided into a fixed section and a folding section, the fixed section is located at one end far away from the filter frame, and the top of the movable filter cavity is provided with a self-adjusting cavity.
Preferably, the below of self-interacting cavity is provided with the briquetting, the one end fixedly connected with montant of briquetting, the montant activity is cup jointed in the inside of self-interacting cavity, the top fixedly connected with spring of montant, the top fixed connection of spring is in the pressure end of pressure valve.
Preferably, the briquetting is established to the back taper platform form, the bottom from the regulation cavity is equipped with the recess, the briquetting slides from top to bottom along the inner wall of recess.
Preferably, the inner part of the self-adjusting cavity is fixedly connected with an inner connector located at the joint of the fixed section and the folding section, the inner wall of the self-adjusting cavity and one end of the inner connector are both provided with electric pieces, the air inlet is connected with an air pump, and the two electric pieces are connected with a circuit of the air pump.
Preferably, the outer walls of the fixed section and the filter plate are provided with magnets, the magnets attract each other, and the size of the magnets is consistent with the frames of the filter frame and the filter plate.
Preferably, the compressing assembly comprises a screw rod and a screw rod, one end of the screw rod is rotatably connected to the outer wall of the pushing plate, the other end of the screw rod is rotatably sleeved inside the screw rod, and the outside of the screw rod is fixedly sleeved with the transmission mechanism.
Preferably, the transmission mechanism comprises an action gear, a transmission gear and a driving gear, the action gear is fixedly sleeved on the outer wall of the screw rod and is meshed with the transmission gear, a cross rod is fixedly sleeved in the middle of the transmission gear, two ends of the cross rod are rotatably connected to the outer wall of the rack, the action gear and the transmission gear are set into a group of slave transmission combinations, the transmission gear of the slave transmission combination in the middle is meshed with the driving gear, and a middle shaft of the driving gear is connected with a rotating shaft of the torque driving device through a pressure self-regulating device.
Preferably, the pressure self-modulation device includes the initiative rim plate and follows the rim plate, the surface of initiative rim plate is provided with the guide arm, the torsional spring has been cup jointed in the outside activity of guide arm, the one end fixedly connected with baffle of guide arm, follow the rim plate and include the leaf, the draw-in groove has been seted up on the surface of leaf, the guide arm runs through the inside of leaf, the torsional spring is located the inside of draw-in groove, the direction of rotation of initiative rim plate is established to the direction along guide arm and towards the baffle.
The invention provides a plate-and-frame filter press for waste treatment, which has the following beneficial effects:
1. this plate and frame filter press is used in waste treatment through the folding performance that utilizes the activity to strain the cavity for filter frame and filter plate can remove abundant extrusion filter cake in opposite directions, reduce the volume of filter cake when reducing the moisture content of filter cake, improve the vacant space of filter chamber, and the finite filter chamber of make full use of volume increases the volume of this plate and frame filter press single work filtration suspension, improves the filtration efficiency of this plate and frame filter press.
2. This plate and frame filter press for waste treatment, through the integrated filtration mode adjustment among the prior art for the integrated form of a plurality of filter unit blocks, the arm of force of power unit effect revolving force on the lead screw has been shortened, and realize extruding it from filter unit block's both sides, the condition of filter unit block middle part suspension leakage has been reduced, the loss of the extrusion force of lead screw on using filter unit block has been reduced, the lead screw has been improved the extruded dynamics of filter cake, and the route of cold charge pump hydraulic pressure transmission has been shortened, hydraulic pressure loss is reduced, the moisture content of filter cake has effectively been reduced.
3. This plate and frame filter press for waste treatment through utilizing driven rim plate, baffle in the pressure self-modulation device to the extrusion of torsional spring, the effect of the elastic deformation power of cooperation torsional spring has realized that automatic adjustment filters the extrusion force of cavity folding and flat in-process with the exhibition to the activity for filter frame and filter plate can be automatic and remove the extrusion filter cake repeatedly, have reduced artificial use, have improved this plate and frame filter press's work efficiency and automated performance.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic diagram of a side view of the movable filter chamber of the present invention
FIG. 4 is a front view of the movable filter chamber of the present invention in a flattened state;
FIG. 5 is a schematic cross-sectional view of the self-alignment chamber in a flattened state;
FIG. 6 is a front view of the movable filter chamber of the present invention in a collapsed state;
FIG. 7 is a schematic cross-sectional view of a folded state of the self-adjusting chamber of the present invention;
FIG. 8 is a schematic structural diagram of the pressure self-regulating device of the present invention;
FIG. 9 is a schematic structural view of the active wheel disc of the present invention;
FIG. 10 is a schematic structural diagram of a driven wheel disc according to the present invention;
FIG. 11 is a schematic view of a filter frame according to the present invention;
fig. 12 is a schematic structural view of a filter plate of the present invention.
In the figure: 1. a frame; 2. a filter unit block; 3. pushing the plate; 4. a compression assembly; 401. a screw rod; 402. a screw; 5. a transmission mechanism; 501. an action gear; 502. a transmission gear; 503. a driving gear; 6. a pressure self-regulating device; 601. a driving wheel disc; 602. a driven wheel disc; 603. a guide bar; 604. a torsion spring; 605. a baffle plate; 606. a leaf plate; 607. a card slot; 7. a filter frame; 8. a movable filter cavity; 801. a fixed section; 802. a folding section; 803. a self-adjusting cavity; 9. filtering the plate; 10. a magnet; 11. an electric sheet; 12. an inner connection joint; 13. briquetting; 14. a spring; 15. an air inlet; 16. a pressure valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-12, a plate and frame filter press for waste treatment includes a frame 1, a plurality of filter unit blocks 2 are disposed above the frame 1, two thrust plates are respectively disposed at two sides of the frame 1, the filter unit blocks 2 at the two sides are respectively contacted with the two thrust plates, the filter unit blocks 2 include a filter frame 7 and a filter plate 9, the filter unit blocks 2 are formed by combining a plurality of filter frames 7 and filter plates 9, in the present embodiment, an integrated filter mechanism formed by the filter frame 7 and the filter plate 9 in the prior art is divided into a plurality of filter unit blocks 2, push plates 3 are disposed at two sides of the filter unit block 2 in the middle, the push plates 3 are connected with the filter plates 9 by hooks, a compressing assembly 4 is disposed between two adjacent filter unit blocks 2, the compressing assembly 4 includes a screw rod 401 and a screw rod 402, one end of the screw rod 401 is rotatably connected to the outer wall of the push plates 3, the other end of the screw rod 401 is rotatably sleeved inside the screw rod 402, the insides of two ends of the screw rod 402 are respectively rotatably sleeved with one screw rod 401, the inner wall of the screw rod 402 is provided with threads in opposite directions, when the screw rod 402 rotates, the screw rods 401 at two ends simultaneously screw out or simultaneously screw into the inside of the screw rod 402, the pressing assembly 4 is provided with a transmission mechanism 5, the transmission mechanism 5 is in transmission connection with a pressure self-adjusting device 6, one end of the pressure self-adjusting device 6, which is far away from the transmission mechanism 5, is fixedly connected with a torque driving device, the driving mode of the torque driving device adopts a ratchet fixing mode to provide initial torque, the transmission mechanism 5 comprises an action gear 501, a transmission gear 502 and a driving gear 503, the action gear 501 is meshed with the transmission gear 502, the middle part of the transmission gear 502 is fixedly sleeved with a cross rod, two ends of the cross rod are rotatably connected on the outer wall of the rack 1, and the cross rod plays a role of supporting the transmission gear 502, the stability of the transmission gear 502 is ensured, meanwhile, the rotating force of the driving gear 503 is transmitted, the action gear 501 and the transmission gear 502 are set as a group of driven transmission combinations, the side surface of each push plate 3 is provided with a group of driven transmission combinations, the filter unit block 2 at the middle position is pushed by the pressing component 4 connected with the push plate 3 at the two sides to extrude the filter unit block 2 to the middle, the filter unit block 2 at the two sides is extruded by the matching of the thrust plate and the pressing component 4, the transmission gear 502 at the middle position of the driven transmission combination is meshed with the driving gear 503, the middle shaft of the driving gear 503 is connected with the rotating shaft of the torque driving device through the pressure self-adjusting device 6, the outer part of the screw 402 is fixedly sleeved with the transmission mechanism 5, namely, the action gear 501 is fixedly sleeved on the outer wall of the screw 402, the number of the driving gear 503 is one, when the number of the transmission gears 502 is even number, any one transmission gear 502 close to the middle position can be selected to be meshed with the driving gear 503, when the number of the transmission gears 502 is odd, the most middle transmission gear 502 is selected to be meshed with the driving gear 503, the scheme is mainly used for balancing the length of the force arm acted on each push plate 3 by the rotating force of the torque driving device as much as possible, in the prior art, most push plates 3 are extruded from one side, because loss exists in the force transmission process, when the force arm is too long, the extrusion force is reduced, the condition that the extrusion between the filter frame 7 and the filter plate 9 is not tight to cause suspension leakage can occur, meanwhile, the scheme also realizes bidirectional extrusion of filter cakes in the filter chambers of the filter unit blocks 2 from two sides of the filter unit blocks 2, the extrusion effect is improved, the water content of the filter cakes is effectively reduced, and the pressure self-regulating device 6 comprises a driving wheel disc 601 and a driven wheel disc 602, the surface of the driving wheel disc 601 is provided with a guide rod 603, the outer part of the guide rod 603 is movably sleeved with a torsion spring 604, one end of the guide rod 603 is fixedly connected with a baffle 605, the driven wheel disc 602 comprises blades 606, the blades 606 have a certain thickness, two ends of the guide rod 603 are fixedly connected with the surface of the driving wheel disc 601, the middle part of the guide rod 603 is at a certain distance from the surface of the driving wheel disc 601, the surface of the blades 606 is provided with a clamping groove 607, the guide rod 603 penetrates through the inner part of the blades 606, the driving wheel disc 601 is fixed with the driven wheel disc 602 through the connection of the guide rod 603 and the blades 606, the number of the blades 606 is the same as that of the guide rod 603, each blade 606 can move within the length of the guide rod 603, the torsion spring 604 is located inside the clamping groove 607, when in compression, the driving wheel disc 601 is connected with the rotating shaft of the torque driving device, the driven wheel disc 602 is connected with the central shaft of the driving wheel 503, the rotating direction of the driving wheel disc 601 is set to be along the guide rod 603 and towards the baffle 605, namely, the torque driving device rotates towards the baffle 605 along the guide rod 603, the driving wheel disc 601 correspondingly rotates along with the torque driving device, the driving wheel disc 601 is connected with the driven wheel disc 602 through the guide rod 603, the driven wheel disc 602 also rotates towards the same direction, at the moment, the driving gear 503 respectively drives the transmission gear 502 and the action gear 501 to rotate, the action gear 501 rotates to enable the screw 402 to rotate, due to the opposite threads on the inner wall of the screw 402, the screw rods 401 on the two sides of the screw 402 correspondingly and simultaneously unscrew out of the inside of the screw 402, for the filtering unit block 2 in the middle position, the filtering unit block 2 is respectively extruded towards the middle from the two sides of the filtering unit block 2, the force arm of the extrusion force between the filtering frame 7 and the filtering plate 9 in the middle position of the filtering unit block 2 is shortened, and the contact tightness of the filtering unit is improved.
The pressure self-regulating device 6 is used for automatically regulating the driving force of the pressing component 4 to the filter unit block 2, and the principle is as follows: when the driving wheel disc 601 is acted by the rotation driving force of the torque driving device, the driven wheel disc 602 is respectively acted by the rotation force which is applied by the driving wheel disc 601 and is towards the direction of the baffle 605 and the reaction stress which is formed by the squeezing of the filter frame 7 and the filter plate 9 in the filter unit block 2, the stress is transmitted to the driven wheel disc 602 through the transmission mechanism 5, and the stress is opposite to the direction of the rotation force which is applied to the driven wheel disc 602 by the driving wheel disc 601, therefore, one end of the torsion spring 604 is contacted with the baffle 605, the other end is contacted with the inner wall of the clamping groove 607, the torsion spring 604 is squeezed and compressed by the leaf plate 606 and the baffle 605, during the compressing process, the squeezing stress generated by the filter frame 7 and the filter plate 9, the deformation force of the torsion spring 604 and the rotation force of the driving wheel disc 601 are balanced, at the moment, the torque driving device stops rotating, the balance is kept by the fixed torque, if the screw 401 continues to be screwed out of the inside of the screw 402, at this time, the torque drive device and the driving pulley 601 are not moved, the driven pulley 602 rotates in the direction of the stopper 605 to press the torsion spring 604, and when the screw 401 is screwed inward into the screw 402, the driven pulley 602 rotates in the reverse direction of the stopper 605, and the torsion spring 604 returns to the balanced state.
The two sides of the filtering frame 7 are provided with movable filtering cavity 8, the filtering frame 7, a filtering chamber is formed between the movable filtering cavity 8 and the filtering plate 9, the movable filtering cavity 8 can stretch left and right, one end of the movable filtering cavity 8 far away from the filtering frame 7 is contacted with the filtering plate 9, the upper part of the movable filtering cavity 8 is respectively provided with an air inlet 15 and a pressure valve 16, the air inlet 15 is provided with an air inlet speed higher than the air outlet speed of the pressure valve 16, the air inlet 15 is connected with an air pump, the movable filtering cavity 8 is divided into a fixed section 801 and a folding section 802, the fixed section 801 can not be folded, the folding section 802 can be folded, the fixed section 801 is positioned at one end far away from the filtering frame 7, the top of the movable filtering cavity 8 is provided with a self-adjusting cavity 803, referring to fig. 3, the movable filtering cavity 8 is formed in a way that two side surfaces and a bottom surface are solid parts, the self-adjusting cavity 803 is a hollow part, the inner connector 12 positioned at the joint of the fixed section 801 and the folding section 802 is fixedly connected inside the self-adjusting cavity 803, the inner connector 12 is foldable, the inner connector 12 and the self-adjusting cavity 803 form an air cavity, the inner wall of the self-adjusting cavity 803 outside the air cavity and one end of the inner connector 12 are both provided with the electric sheets 11, the two electric sheets 11 are connected with the circuit of the air pump, the opening and closing of the air pump can be controlled by the PLC, when the inside of the air cavity is completely filled with air, the inner connector 12 is fully extended, the electric sheet 11 at the top end of the inner connector 12 is contacted with the electric sheet 11 on the inner wall of the self-adjusting cavity 803 outside the air cavity, at the moment, the circuit of the air pump is disconnected, the air pump stops inflating, when the air in the air cavity flows out, as the folding section 802 is partially folded, the fixing section 801 is partially unfolded, therefore, when the air in the air cavity flows out, the inner connector 12 is folded, the electric sheet 11 on the inner connector 12 is disconnected from the electric sheet 11 on the self-adjusting cavity 803, after a certain time, the air pump circuit is switched on, and the time is the contraction time reserved for the movable filter cavity body 8.
The outer wall of canned paragraph 801 and filter plate 9 all is provided with magnet 10, two magnet 10 inter attraction, the size of magnet 10 is unanimous with the frame of filter frame 7 and filter plate 9, guarantee that activity filter chamber body 8 and filter plate 9 can align, and the contact is connected, after filtering, because magnet 10's appeal is less than torque drive device's torsion, consequently, can make two magnet 10 disconnection, the side of activity filter chamber body 8 and the frame of filter frame 7 coincide completely, and the another side of activity filter chamber body 8 is unanimous with the outline size of filter plate 9 completely, guarantee the compactness of activity filter chamber body 8 and filter plate 9 contact, avoid suspension to leak.
A pressing block 13 is arranged below the self-adjusting cavity 803, the pressing block 13 is in a reverse frustum shape, a groove is arranged at the bottom of the self-adjusting cavity 803, the pressing block 13 slides up and down along the inner wall of the groove, so that the situation that silt enters the upper part of the pressing block 13 to block the up-and-down movement of the pressing block 13 can be effectively prevented, a vertical rod is fixedly connected to one end of the pressing block 13 and is movably sleeved inside the self-adjusting cavity 803, a spring 14 is fixedly connected to the upper part of the vertical rod, the top end of the spring 14 is fixedly connected to the pressure end of a pressure valve 16, the pressing block 13 is arranged at one end of the movable filter cavity 8, which is close to the filter frame 7, at least on the side surface of the central line of the movable filter cavity 8, the filter frame 7 and the movable filter cavity 8 are guaranteed to extrude and push filter cakes to the middle part of the movable filter cavity 8 after the movable filter cavity 8 is folded and contracted, so that the filter cakes are removed from the bottom of the pressing block 13, and the pressing block 13 can move downwards under the elastic force of the spring 14, thereby closing the air outlet of the pressure valve 16, and in the filter pressing process, the filter cake is extruded on the filter cloth close to the filter plate 9, therefore, when the pressing force of the filter cake is applied to the pressing block 13, the volume of the filter cake reaches the volume limit value of the filter chamber; the principle of the pressure piece 13, the spring 14 and the pressure valve 16 is as follows: when entering suspension liquid enters a filter chamber formed by the filter frame 7, the movable filter chamber body 8 and the filter plate 9, when the volume and the hardness of a filter cake are gradually increased, when the filter chamber is filled with the filter cake, the top of the filter cake extrudes the pressing block 13 to push the pressing block 13 to move upwards, the pressing block 13 transmits the extrusion force to the inside of the pressure valve 16 through the spring 14, when the extrusion force is larger than the pressure in the pressure valve 16, the air outlet of the pressure valve 16 is opened, the gas in the air chamber is lost, the internal connection joint 12 is contracted, the electric sheet 11 on the internal connection joint 12 is disconnected with the electric sheet 11 on the inner wall of the self-adjusting chamber body 803, after the reserved time for the contraction of the movable filter chamber body 8, the air pump fills air into the air chamber through the air inlet hole 15, the pressing block 13 moves towards two sides under the driving of the movable filter chamber body 8 and is moved away from the upper part of the filter cake, the pressing block 13 is restored to the original state under the deformation of the spring 14, the pressure borne by the pressure valve 16 is reduced, the air outlet is closed.
The using method of the invention is as follows:
when the filter is pressed, firstly, the air pump is started to fill the air cavity in the self-adjusting cavity 803 with air, the movable filter cavity 8 is flattened under the air pressure of the self-adjusting cavity 803, the electric sheet 11 on the inner connector 12 is connected with the electric sheet 11 on the inner wall of the self-adjusting cavity 803, secondly, the torque driving device rotates to drive the driving wheel disc 601 and the driven wheel disc 602 to rotate, the driven wheel disc 602 transmits the rotating force to the action gear 501 through the driving gear 503 via the transmission gear 502, the action gear 501 drives the screw 402 to rotate, when the screw 402 rotates, the screw rods 401 at two sides are screwed out of the screw 402 to extrude the filter unit block 2, the suspension is introduced, when the volume of the filter cake in the filter chamber formed by the filter frame 7, the movable filter cavity 8 and the filter plate 9 is gradually increased, the extrusion press block 13 moves upwards, the extrusion force is transmitted to the pressure valve 16 through the spring 14, when the pressure applied to the pressure valve 16 reaches the limit value, the air outlet of the pressure valve 16 is opened, the air in the air cavity flows out, the folding section 802 of the movable filter cavity 8 is contracted and folded, due to the connection between the push plate 3 and the filter frame 7, the push plate 3 drives the screw rod 401 to rotate and remove towards the outer side of the screw rod 402, at the moment, the action gear 501 transmits the rotating force to the driven wheel disc 602 through the transmission gear 502, the driven wheel disc 602 compresses the torsion spring 604, at the moment, the electric sheet 11 on the inner connecting joint 12 is disconnected with the electric sheet 11 on the inner wall of the self-adjusting cavity 803, the movable filter cavity 8 continuously contracts for a period of time until the filter frame 7 and the filter plate 9 squeeze the filter cake to the maximum extent, then the air pump is switched on, because the air inlet speed is higher than the air outlet speed, the interior of the air cavity is gradually filled with air, the movable filter cavity 8 is gradually flattened towards two sides, the air pressure pushes the filter frame 7 and the filter plate 9 to move towards the interior of the screw rod 402, the action gear 501 drives the driven wheel disc 602 to reversely rotate through the transmission gear 502, the torsion spring 604 returns to the original state of being pressed, as the filter frame 7 and the filter plate 9 move to the middle position of the movable filter cavity 8, the filter cake is pushed to the middle of the movable filter cavity 8, the pressing block 13 positioned at the side close to the filter frame 7 loses the compression of the filter cake, the pressing block 13 moves downwards under the action of the elastic deformation recovery of the spring 14, when the air cavity in the self-adjusting cavity 803 is filled with gas, the electric sheet 11 on the internal connection joint 12 and the electric sheet 11 on the self-adjusting cavity 803 are contacted again, and finally, the actions are repeated until the liquid after filter pressing is less, and the filtering is finished.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A plate and frame filter press for waste treatment, comprising a frame (1), characterized in that: the filter unit block (2) is arranged above the rack (1), the filter unit block (2) comprises a filter frame (7) and a filter plate (9), the filter unit block (2) is formed by combining a plurality of groups of filter frames (7) and filter plates (9), a push plate (3) is arranged on the side surface of the filter unit block (2), a pressing component (4) is arranged between every two adjacent filter unit blocks (2), a transmission mechanism (5) is arranged on the pressing component (4), the transmission mechanism (5) is connected with a pressure self-regulating device (6) in a transmission way, the pressure self-regulating device (6) is used for automatically regulating the driving force of the pressing component (4) to the filter unit block (2), one end of the pressure self-regulating device (6) far away from the transmission mechanism (5) is fixedly connected with a torque driving device, and movable filter cavities (8) are arranged on the two sides of the filter frame (7), a filter chamber is formed among the filter frame (7), the movable filter cavity (8) and the filter plate (9), the movable filter cavity (8) can stretch out and draw back left and right, one end of the movable filter cavity (8) far away from the filter frame (7) is contacted with the filter plate (9), and an air inlet (15) and a pressure valve (16) are respectively arranged above the movable filter cavity (8);
the movable filter cavity (8) is divided into a fixed section (801) and a folding section (802), the fixed section (801) is located at one end far away from the filter frame (7), and the top of the movable filter cavity (8) is provided with a self-adjusting cavity (803);
a pressing block (13) is arranged below the self-adjusting cavity (803), one end of the pressing block (13) is fixedly connected with a vertical rod, the vertical rod is movably sleeved inside the self-adjusting cavity (803), a spring (14) is fixedly connected above the vertical rod, and the top end of the spring (14) is fixedly connected with the pressure end of the pressure valve (16);
the pressing block (13) is in an inverted frustum shape, a groove is formed in the bottom of the self-adjusting cavity (803), and the pressing block (13) slides up and down along the inner wall of the groove;
the interior of the self-adjusting cavity (803) is fixedly connected with an internal connector (12) positioned at the joint of the fixed section (801) and the folding section (802), the inner wall of the self-adjusting cavity (803) and one end of the internal connector (12) are both provided with electric pieces (11), the air inlet hole (15) is connected with an air pump, and the two electric pieces (11) are connected with a circuit of the air pump;
pressure self-modulation device (6) are including initiative rim plate (601) and follow rim plate (602), the surface of initiative rim plate (601) is provided with guide arm (603), torsional spring (604) have been cup jointed in the outside activity of guide arm (603), the one end fixedly connected with baffle (605) of guide arm (603), driven rim plate (602) are including acanthus leaf (606), draw-in groove (607) have been seted up on the surface of acanthus leaf (606), guide arm (603) run through the inside of acanthus leaf (606), torsional spring (604) are located the inside of draw-in groove (607), the direction of rotation of initiative rim plate (601) is established to the direction along guide arm (603) and towards baffle (605).
2. A plate and frame filter press for waste treatment according to claim 1, wherein: the outer walls of the fixed section (801) and the filter plate (9) are provided with magnets (10), the magnets (10) attract each other, and the size of the magnets (10) is consistent with the frames of the filter frame (7) and the filter plate (9).
3. A plate and frame filter press for waste treatment according to claim 1, wherein: the pressing assembly (4) comprises a screw rod (401) and a screw rod (402), one end of the screw rod (401) is rotatably connected to the outer wall of the push plate (3), the other end of the screw rod (401) is rotatably sleeved inside the screw rod (402), and the outside of the screw rod (402) is fixedly sleeved with the transmission mechanism (5).
4. A plate and frame filter press for waste treatment according to claim 3, wherein: the transmission mechanism (5) comprises an action gear (501), a transmission gear (502) and a driving gear (503), the action gear (501) is fixedly sleeved on the outer wall of the screw rod (402), the action gear (501) is meshed with the transmission gear (502), the middle of the transmission gear (502) is fixedly sleeved with a cross rod, two ends of the cross rod are rotatably connected to the outer wall of the rack (1), the action gear (501) and the transmission gear (502) are set into a group of slave transmission combination, the transmission gear (502) of the slave transmission combination in the middle position is meshed with the driving gear (503), and the middle shaft of the driving gear (503) is connected with the rotating shaft of the torque driving device through a pressure self-regulating device (6).
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| CN202010371611.2A CN111559847B (en) | 2020-05-06 | 2020-05-06 | Plate-and-frame filter press for waste treatment |
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| CN114011125A (en) * | 2021-10-12 | 2022-02-08 | 浙江新俊环境科技有限公司 | Composite tensioning type filter press |
| CN114053770B (en) * | 2021-11-12 | 2023-02-21 | 恩彻尔(天津)环保科技有限公司 | Plate-and-frame filter press for waste liquid treatment |
| CN114344965B (en) * | 2021-12-02 | 2023-07-25 | 兴源环境科技股份有限公司 | Filter plate and membrane filter press convenient to change diaphragm and filter cloth |
| CN114504873B (en) * | 2022-02-23 | 2023-04-11 | 江西省上丰农业开发有限公司 | A equipment for tea-seed oil is concise with dregs of fat separation |
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