Single-chamber backwash filter press

Abstract

The utility model discloses a single chamber backflushing type filter press belongs to filter press technical field, including frame and the sliding placement of several filter plates in the frame, one end of frame is fixedly installed with hydraulic cylinder, and the output of hydraulic cylinder is fixedly installed with the filter plate in the frame, one end of frame away from hydraulic cylinder is fixedly installed with injection pipe and water injection pipe respectively, and injection pipe is connected with frame, be provided with the washing piece for filter plate washing on the frame, and the water injection pipe and injection pipe are all U shape. The utility model discloses, through the washing of several groups of washing holes on the washing pipe, make several filter plates after being pulled open, the water flow that conveys into the washing pipe can be sprayed out through the washing of arc distribution, can wash the gap between two filter plates, at the same time, cooperate with the several shower nozzles below the water guide bin, make the water flow in the washing process, can fully contact with the left and right sides of filter plate, to improve the washing effect of filter plate.

Description

Technical Field

[0001] This utility model relates to the field of filter press technology, and in particular to a single-chamber backwash filter press. Background Technology

[0002] A filter press is a mechanical device that uses a special filter medium to apply pressure to a material, causing the liquid to seep out and achieve solid-liquid separation. It is a commonly used solid separation device with a wide range of applications, such as wastewater treatment in chemical, pharmaceutical, metallurgical, dye, food, brewing, ceramic, and various other industries.

[0003] Existing filter presses, when used frequently for wastewater treatment, accumulate silt and sand that clumps together on the filter plates, causing blockages. Therefore, it is necessary to clean the filter plates. For example, utility model patent CN216023358 discloses a high-efficiency, quick-opening filter press. The press features a base fixedly installed at each of the four corners of the lower end of the frame, a main beam fixedly installed in the middle of the frame, a hydraulic telescopic device fixedly installed on one side of the main beam, a pressure plate fixedly installed at one end of the hydraulic telescopic device, several filter plates arranged sequentially on one side of the pressure plate, a thrust plate installed on one side of each filter plate, a feed inlet on the other side of the main beam, a feed pipe installed on one side of the feed inlet, a water tank installed on one side of the frame, a fixed frame fixedly installed at the upper end of the frame, and a conveying structure located at the lower end of the frame's interior.

[0004] However, the multiple nozzles in the above application are located above the filter press plates, and the distance between two adjacent filter press plates is not large. Therefore, with the nozzles located directly above the two adjacent filter press plates, it is difficult for the water sprayed from the nozzles to completely rinse both sides of the filter press plates, thus affecting the rinsing effect. Therefore, a single-chamber backwash filter press is proposed to solve the above problems. Utility Model Content

[0005] (a) Purpose of the utility model

[0006] To address the technical problems existing in the background art, this utility model proposes a single-chamber backwashing filter press, which can more comprehensively wash both sides of the separated filter plate through the washing component, thus improving the washing effect and other advantages.

[0007] (II) Technical Solution

[0008] This utility model provides a single-chamber backwash filter press, including a frame and several filter plates that are slidably placed in the frame. A hydraulic cylinder is fixedly installed at one end of the frame, and a pressure plate located in the frame is fixedly installed at the output end of the hydraulic cylinder.

[0009] The end of the frame away from the hydraulic cylinder is fixedly equipped with a material injection pipe and a water injection pipe, and the material injection pipe is connected to the frame. The frame is equipped with a rinsing device for rinsing the filter plate. Both the water injection pipe and the material injection pipe are U-shaped.

[0010] The rinsing component includes a rinsing pipe connected to the outlet end of the water injection pipe and passing through several filter plates. A bracket is fixedly connected to the upper end of the frame, and a movable frame is slidably connected to the bracket. A set of mounting plates is fixedly connected to the upper part of the bracket, and a servo motor is fixedly mounted on the right mounting plate. The output shaft of the servo motor is fixedly connected to a threaded rod that passes through the movable frame and is rotatably connected to the left mounting plate. A water guide chamber is installed at the lower end of the movable frame, and several nozzles are connected to the lower end of the water guide chamber. A diversion pipe with one end connected to the water guide chamber is connected to the water injection pipe, and the diversion pipe is a flexible hose.

[0011] The flushing pipe has several sets of equidistantly distributed flushing holes;

[0012] The front and rear sides of the frame are equipped with drive components for driving several filter plates to separate after filtration; the front side of the frame is equipped with a collection component for collecting filter residue and wastewater.

[0013] Preferably, the upper end of the movable frame is U-shaped, and the U-shaped end of the movable frame has a first threaded hole for the threaded rod to pass through, and the first threaded hole is adapted to the thread on the outside of the threaded rod.

[0014] Preferably, each of the filter press plates has a circular hole through which the rinsing pipe passes, and a set of sealing rings is installed in each circular hole. The number of rinsing holes in each set is ~, and each set of rinsing holes is distributed in a fan shape.

[0015] Preferably, each of the filter press plates is provided with a set of material guide holes, and the left and right sides of the filter press plate are provided with material guide grooves communicating with the material guide holes. The material guide holes and round holes on each of the filter press plates are equidistantly distributed at their four corners.

[0016] Preferably, the collection component includes a support frame placed on the front side of the frame, a collection rack placed inside the support frame, a drain pipe connected to the back of the support frame, and a drain hole connected to the drain pipe on the back of the collection rack.

[0017] Preferably, the driving component includes two sets of crossbeams symmetrically installed on the front and rear sides of the frame. A sliding frame is slidably connected to the top crossbeam, and the upper end of the sliding frame is U-shaped. A linear module for driving the sliding frame to slide laterally back and forth is provided on the top crossbeam. A driving block is rotatably connected to the U-shaped end of the sliding frame, and a stop block located on the right side of the driving block is fixedly connected to the U-shaped end. A screw located on the left side of the driving block is threadedly connected to the U-shaped end.

[0018] Preferably, the U-shaped end of the sliding frame is provided with a second threaded hole for the screw to rotate, and the second threaded hole is adapted to the thread on the outside of the screw. The lower end of the driving block is rotatably connected to the U-shaped end of the sliding frame through a rotating shaft, and a torsion spring sleeved on the outside of the rotating shaft is installed between the lower end of the driving block and the U-shaped end of the sliding frame.

[0019] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0020] 1. This single-chamber backwash filter press uses several sets of flushing holes on the flushing pipe to allow water to flow into the flushing pipe after the filter plates are pulled apart. The water is sprayed out through the arc-shaped flushing holes, which can flush the gaps between the filter plates. At the same time, with the help of several nozzles below the water guide chamber, the water can fully contact the left and right sides of the filter plates during the flushing process, thereby improving the flushing effect on the filter plates.

[0021] 2. This single-chamber backwash filter press, through the flushing pipes that pass through several filter plates, can support and guide several slidingly placed filter plates, making the filter plates more neat and stable during filtration, thereby improving the filtration effect. Attached Figure Description

[0022] Figure 1 This is a three-dimensional view of the overall structure of this utility model.

[0023] Figure 2 This is a side view of the overall structure of this utility model.

[0024] Figure 3 This is a rear view showing the connection between the filter plate and the rinsing pipe structure of this utility model.

[0025] Figure 4 This is a bottom view showing the connection between the bracket and the movable frame structure of this utility model.

[0026] Figure 5 This utility model Figure 1 Enlarged view of point A in the middle.

[0027] Reference numerals: 1. Frame; 2. Feeding pipe; 3. Water injection pipe; 4. Flushing component; 41. Flushing pipe; 42. Flushing hole; 43. Support; 44. Diverter pipe; 45. Movable frame; 46. Water guide chamber; 47. Nozzle; 48. Mounting plate; 49. Servo motor; 410. Threaded rod; 5. Filter press plate; 51. Feed guide hole; 52. Feed guide trough; 6. Collection component; 61. Support frame; 62. Collection frame; 63. Drain pipe; 7. Drive component; 71. Crossbeam; 72. Linear module; 73. Sliding frame; 74. Drive block; 75. Abutment block; 76. Screw; 8. Hydraulic cylinder; 9. Pressure plate; 10. Feed guide frame. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0029] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, such as welding, riveting, or bonding; it can also be a detachable connection, such as threaded connection, keyed connection, or pin connection; or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] like Figure 1-5 As shown, the present invention proposes a single-chamber backwash filter press, which includes a frame 1 and several filter plates 5 that are slidably placed in the frame 1. A hydraulic cylinder 8 is fixedly installed at one end of the frame 1, and a pressure plate 9 located in the frame 1 is fixedly installed at the output end of the hydraulic cylinder 8.

[0032] The frame 1 is equipped with a filter press plate 5 and a rinsing component 4 for rinsing.

[0033] In this invention, the rinsing component 4 can more thoroughly rinse both sides of the separated filter plate 5.

[0034] It should be noted that an inclined guide frame 10 is installed at the lower end of the frame 1 to guide the wastewater, filter residue and rinsing wastewater of the filter plate 5 during the filter pressing process.

[0035] In an optional embodiment, a material injection pipe 2 and a water injection pipe 3 are fixedly installed at the end of the frame 1 away from the hydraulic cylinder 8, and the material injection pipe 2 is connected to the frame 1. Both the water injection pipe 3 and the material injection pipe 2 are U-shaped, and the material injection pipe 3 and the material injection pipe 2 are respectively connected to a material supply pipe and a water supply pipe. The input ends of the material supply pipe and the water supply pipe are respectively connected to the output end of the material to be processed and the output end of the water source.

[0036] The rinsing component 4 includes a rinsing pipe 41 connected to the outlet end of the water injection pipe 3 and passing through several filter press plates 5. A bracket 43 is fixedly connected to the upper end of the frame 1. A movable frame 45 is slidably connected to the bracket 43. A set of mounting plates 48 is fixedly connected to the upper part of the bracket 43. A servo motor 49 is fixedly installed on the right mounting plate 48. A threaded rod 410 is fixedly connected to the output shaft of the servo motor 49, passing through the movable frame 45 and rotatably connected to the left mounting plate 48. A water guide chamber 46 is installed at the lower end of the movable frame 45. Several nozzles 47 are connected to the lower end of the water guide chamber 46. A diversion pipe 44 is connected to the water injection pipe 3, with one end connected to the water guide chamber 46. The diversion pipe 44 is a flexible hose.

[0037] The flushing pipe 41 has several sets of equidistantly distributed flushing holes 42.

[0038] In this embodiment, through a number of flushing holes 42 on the flushing pipe 41, the water flow delivered into the flushing pipe 41 after the filter plates 5 are pulled apart can be sprayed out through the arc-shaped flushing holes 42, which can flush the gap between the filter plates 5. At the same time, in conjunction with a number of nozzles 47 below the water guide chamber 46, the water flow can fully contact the left and right sides of the filter plates 5 during the flushing process, so as to improve the flushing effect on the filter plates 5.

[0039] It should be noted that each filter plate 5 has a circular hole through which the flushing pipe 41 passes, and a set of sealing rings is installed in each circular hole. The sealing rings located in the circular hole can seal the flushing hole 42 located in the circular hole. After the flushing hole 42 is exposed in the circular hole, it can spray water normally. There are 4 to 5 flushing holes in each set, and each set of flushing holes 42 is distributed in a fan shape, so that the several sets of flushing holes 42 on the two flushing pipes 41 can spray water in an arc shape to the gap between the two filter plates 5.

[0040] The height of the support 43 provides sufficient upward space for the filter plate 5 to be lifted. The pressure plate 9 has through holes corresponding to the flushing pipe 41, so that the pressure plate 9 can pass through the flushing pipe 41 during the process of squeezing the filter plate 5.

[0041] The upper end of the movable frame 45 is convex in shape. The convex end of the movable frame 45 has a first threaded hole through which the threaded rod 410 passes. The first threaded hole is adapted to the thread on the outside of the threaded rod 410, so that the rotating threaded rod 410 can drive the movable frame 45 to move laterally back and forth on the support 43.

[0042] In addition, each filter press plate 5 is provided with a set of material guide holes 51, and the left and right sides of the filter press plate 5 are provided with material guide grooves 52 that communicate with the material guide holes 51, so that the material to be processed can be injected into the material guide holes 51 and material guide grooves 52 on each filter press plate 5 and flow between the two filter press plates 5. The material guide holes 51 and round holes on each filter press plate 5 are equidistantly distributed at its four corners.

[0043] In an optional embodiment, the front and rear sides of the frame 1 are provided with driving components 7 for driving several filter plates 5 to separate after filtration. The driving components 7 include two sets of crossbeams 71 symmetrically installed on the front and rear sides of the frame 1. A sliding frame 73 is slidably connected to the top crossbeam 71, and the upper end of the sliding frame 73 is U-shaped. A linear module 72 for driving the sliding frame 73 to slide laterally back and forth is provided on the top crossbeam 71. A driving block 74 is rotatably connected to the U-shaped end of the sliding frame 73. A stop block 75 located on the right side of the driving block 74 is fixedly connected to the U-shaped end of the sliding frame 73, and a screw 76 located on the left side of the driving block 74 is threadedly connected to the U-shaped end of the sliding frame 73.

[0044] In this embodiment, after the drive block 74 and the stop block 75, which are located in the sliding frame 73, are driven to the front and rear ears of each filter press plate 5, the reset drive block 74 can pull the filter press plate 5 to separate from the filter press plate 5, so that the filter residue after pressing falls off and the filter press plate 5 is rinsed.

[0045] It should be noted that the U-shaped end of the sliding frame 73 is provided with a second threaded hole for the screw 76 to rotate, and the second threaded hole is adapted to the thread on the outside of the screw 76, so that the screw 76, which is rotated and tightened in the second threaded hole, can block the rotating drive block 74. The lower end of the drive block 74 is rotatably connected to the U-shaped end of the sliding frame 73 through a rotating shaft, and a torsion spring sleeved on the rotating shaft is installed between the lower end of the drive block 74 and the U-shaped end of the sliding frame 73, so that the drive block 74 can rotate at the U-shaped end of the sliding frame 73 and be reset by the torsion spring.

[0046] The linear module 72 consists of an electric slide rail and an electric slider. The electric slide rail is installed on the top crossbeam 71, and the electric slider is installed inside the sliding frame 73. The electric slider is slidably installed on the electric slide rail, so that the cooperation between the electric slide rail and the electric slider drives the sliding frame 73 to move laterally along the horizontal plane for adjustment.

[0047] In an optional embodiment, a collection device 6 for collecting filter residue wastewater is placed on the front side of the frame 1; the collection device 6 includes a support frame 61 placed on the front side of the frame 1, a collection rack 62 placed inside the support frame 61, and a drain pipe 63 connected to the back of the support frame 61.

[0048] In this embodiment, the collection rack 62 located inside the support frame 61 can collect the filter residue guided by the guide rack 10, while the support frame 61 and the drain pipe 63 can guide and discharge the sewage guided by the guide rack 10.

[0049] It should be noted that the back of the collection rack 62 is provided with a drain hole that connects to the drain pipe 63, which is connected to the sewage network of the workshop for the discharge of sewage during the filter pressing and cleaning processes. The left and right sides of the collection rack 62 are equipped with handles that pass through the support frame 61, and the left and right sides of the support frame 61 are provided with grooves for placing the handles, so that the operator can lift the collection rack 62 by the handles to pour out the collected filter residue.

[0050] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art, which is common knowledge in the field. Since this utility model is mainly used to protect mechanical structures, the control method and circuit connection and other technical means will not be described in detail here.

[0051] The working principle in the above embodiments is as follows:

[0052] After the filter press plate 5 is pushed and pressed into place by the pressure plate 9 driven by the hydraulic cylinder 8, the material to be filtered can be injected through the injection pipe 2. After the material can fill the gap between the filter press plate 5 through the guide hole 51 and the guide groove 52, the hydraulic cylinder 8 continues to drive the pressure plate 9 to squeeze the filter press plate 5 to filter the material. The wastewater in the material filtration process can flow into the collection rack 62 through the guide frame 10 and then be discharged through the sewage pipe 63.

[0053] After the material is filtered, the linear module 72 drives the sliding frame 73 to slide on the top crossbeam 71 towards the side closest to the filter press plate 5 until the driving block 74 and the abutment block 75 on the sliding frame 73 are driven between the front and rear ears of each filter press plate 5. Then, the sliding frame 73 is reset, and the driving block 74 pulls the filter press plate 5 to separate it from the filter press plate 5, causing the filtered residue to fall off. At the same time, during the separation of the filter press plate 5, the flushing holes 4 on the flushing pipe 41 are exposed. The gap between the filter plates 2 and 5 is then filled with flushing water. The flushing water is then injected into the water injection pipe 3, and the water flows sequentially into the flushing pipe 41, the diversion pipe 44 and the water guide chamber 46. The water is then sprayed out through the flushing hole 42 and the nozzle 47. The water guide chamber 46 is then driven by the servo motor 49 and the threaded rod 410 to move to the gap of each filter plate 5 that needs to be flushed, so as to fully flush the left and right sides of the filter plates 5, so that the impurities on the filter plates 5 are flushed more thoroughly, thereby improving the subsequent filtration effect.

[0054] After rinsing, the pull-out screw 76 can be rotated to no longer obstruct the drive block 74, and then the sliding frame 73 is driven to the initial position through the linear module 72, while the filter plate 5 can also be slid out through the gap between the rinsing pipe 41 and the pressure plate 9.

[0055] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A single-chamber backwash filter press, comprising a frame (1) and a plurality of filter plates (5) slidably placed within the frame (1), wherein a hydraulic cylinder (8) is fixedly installed at one end of the frame (1), and a pressure plate (9) located within the frame (1) is fixedly installed at the output end of the hydraulic cylinder (8). characterized in that The end of the frame (1) away from the hydraulic cylinder (8) is fixedly installed with a material injection pipe (2) and a water injection pipe (3), and the material injection pipe (2) is connected to the frame (1). The frame (1) is provided with a rinsing component (4) for rinsing the filter plate (5). Both the water injection pipe (3) and the material injection pipe (2) are U-shaped. The flushing component (4) includes a flushing pipe (41) connected to the water outlet end of the water injection pipe (3) and passing through several filter press plates (5). A bracket (43) is fixedly connected to the upper end of the frame (1). A movable frame (45) is slidably connected to the bracket (43). A set of mounting plates (48) is fixedly connected to the upper part of the bracket (43). A servo motor (49) is fixedly installed on the right mounting plate (48). A threaded rod (410) is fixedly connected to the output shaft of the servo motor (49) and passes through the movable frame (45) and is rotatably connected to the left mounting plate (48). A water guide chamber (46) is installed at the lower end of the movable frame (45). Several nozzles (47) are connected to the lower end of the water guide chamber (46). A diversion pipe (44) is connected to the water injection pipe (3) and has one end connected to the water guide chamber (46). The diversion pipe (44) is a flexible hose. The flushing pipe (41) has several sets of equidistantly distributed flushing holes (42). The frame (1) is provided with drive components (7) on the front and rear sides for driving several filter plates (5) to separate after filtration; a collection component (6) for collecting filter residue wastewater is placed on the front side of the frame (1).

2. A single chamber backflush filter press according to claim 1, characterised in that, The upper end of the movable frame (45) is convex, and the convex end of the movable frame (45) is provided with a first threaded hole for the threaded rod (410) to pass through, and the first threaded hole is adapted to the thread on the outside of the threaded rod (410).

3. A single chamber backflush filter press according to claim 1, characterised in that, Each of the filter press plates (5) has a circular hole through which the flushing pipe (41) passes, and a set of sealing rings is installed in each circular hole. The number of flushing holes (42) in each set is 4 to 5, and each set of flushing holes (42) is distributed in a fan shape.

4. A single-chamber backwash filter press according to claim 1, characterized in that, Each of the filter press plates (5) is provided with a set of guide holes (51), and guide grooves (52) communicating with the guide holes (51) are provided on both the left and right sides of the filter press plates (5). The guide holes (51) and round holes on each of the filter press plates (5) are equidistantly distributed at their four corners.

5. A single-chamber backwash filter press according to claim 1, characterized in that, The collection component (6) includes a support frame (61) placed on the front side of the frame (1), a collection rack (62) is placed on the inner side of the support frame (61), a drain pipe (63) is connected to the back of the support frame (61), and a drain hole connected to the drain pipe (63) is opened on the back of the collection rack (62).

6. A single-chamber backwash filter press according to claim 1, characterized in that, The driving component (7) includes two sets of crossbeams (71) symmetrically installed on the front and rear sides of the frame (1). A sliding frame (73) is slidably connected to the top crossbeam (71), and the upper end of the sliding frame (73) is U-shaped. A linear module (72) for driving the sliding frame (73) to slide laterally back and forth is provided on the top crossbeam (71). A driving block (74) is rotatably connected to the U-shaped end of the sliding frame (73), and a stop block (75) located on the right side of the driving block (74) is fixedly connected to its U-shaped end. A screw (76) located on the left side of the driving block (74) is threadedly connected to its U-shaped end.

7. A single-chamber backwash filter press according to claim 6, characterized in that, The sliding frame (73) has a second threaded hole at its U-shaped end for the screw (76) to rotate, and the second threaded hole is adapted to the thread on the outside of the screw (76). The lower end of the drive block (74) is rotatably connected to the U-shaped end of the sliding frame (73) via a rotating shaft, and a torsion spring sleeved on the outside of the rotating shaft is installed between the lower end of the drive block (74) and the U-shaped end of the sliding frame (73).

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