Vertical sludge dewatering high-pressure filter press

Abstract

The invention belongs to the technical field of filter presses, and particularly relates to a vertical sludge dewatering high-pressure filter press which comprises a rack and a base, the rack is fixed to the top of the base, a hydraulic cylinder is fixed to the top of the rack in a penetrating mode, an output shaft of the hydraulic cylinder is connected with a pressing plate, the bottom of the pressing plate is connected with a plurality of filter pressing units, and each filter pressing unit comprises a pair of first square blocks and a pair of second square blocks. Rotating shafts are rotationally connected between the two first square blocks and the two second square blocks respectively, one group of the first square blocks and the second square blocks are fixed together through a connecting rod, filter cloth is wound between the two rotating shafts, the two ends of the filter cloth are fixed to the circumferential outer walls of the two rotating shafts respectively, a motor is fixed to the outer end of one first square block, and a motor is fixed to the outer end of the other first square block. An output shaft of the motor is connected with the end part of the rotating shaft, and positioning frames are arranged below the pressing plate and the filter cloth. According to the discharging device, the motors of the lower set and the upper set are started in sequence, discharging is conducted in two sets, and therefore the discharging efficiency is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of filter presses, in particular to a vertical sludge dewatering high-pressure filter press. Background Art

[0002] Filter press is an important equipment widely used in chemical, petroleum, mineral processing, pharmaceutical, food and other industries to achieve solid-liquid separation. The structure of filter press mainly includes filter plates for solid-liquid separation, frame beams supporting filter plates, pressure mechanism and unloading mechanism. During the working process of filter press, the filter plates in the frame beams are first compressed by the pressure mechanisms set at both ends of the frame beams, and then the solid-liquid mixture is transported to the filter plates for pressurization to separate the solid and liquid. After the solid-liquid separation is completed, the unloading device separates the compressed filter plates one by one, and unloads the separated filter cakes from between the filter plates, thereby achieving solid-liquid separation.

[0003] The existing horizontal sludge dewatering filter press uses a slider structure to pull the discs apart one by one, separating two adjacent discs to achieve mud cake discharge. Discharging one by one in this way will result in low mud cake discharge efficiency. Therefore, to address this problem, a vertical sludge dewatering high-pressure filter press is proposed, which can discharge in two groups, thereby effectively improving the mud cake discharge efficiency. Summary of the invention

[0004] Based on the technical problems existing in the prior art, the present invention proposes a vertical sludge dewatering high-pressure filter press.

[0005] A vertical sludge dewatering high-pressure filter press proposed by the present invention comprises a frame and a base, wherein the frame is fixed on the top of the base, a hydraulic cylinder is fixed through the top of the frame, a pressure plate is connected to the output shaft of the hydraulic cylinder, a plurality of filter press units connected in sequence are connected to the bottom of the pressure plate, and two adjacent filter press units are oriented in opposite directions, the filter press unit comprises a pair of first blocks and second blocks, a rotating shaft is rotatably connected between the two first blocks and the two second blocks, a group of the first blocks and the second blocks are fixed together by a connecting rod, a filter cloth is wound between the two rotating shafts, two ends of the filter cloth are respectively fixed on the circumferential outer walls of the two rotating shafts, a motor is fixed to the outer end of one of the first blocks, the output shaft of the motor is connected to the end of the rotating shaft, a positioning frame is arranged below the pressure plate and the filter cloth, and the positioning frame is connected to a sludge feeding assembly and drainage components, and feeds the sludge into each group of positioning frames and filter cloths through the sludge feeding component, and then drives the pressure plate and multiple filter pressing units to move downward through the output shaft of the hydraulic cylinder, so as to squeeze the sludge between the positioning frame and the filter cloth, and the squeezed water can be discharged through the drainage component, and finally the sludge forms a mud cake between the positioning frame and the filter cloth, and then drives the pressure plate and multiple filter pressing units to move upward through the output shaft of the hydraulic cylinder, and the positioning frame will be moved away from the mud cake, and then the motors of the lower and upper groups are started successively, and the material is discharged in two groups, and the motor will drive one of the rotating shafts to rotate, and the rotating shaft will reel in the filter cloth on the other rotating shaft, so that the filter cloth will move and drive the mud cake to discharge to one side, and after the discharge is completed, the motor will rotate in the opposite direction to drive the filter cloth to reset, thereby effectively improving the discharge efficiency.

[0006] Preferably, the positioning frame below the pressing plate is directly fixed to the pressing plate, so that the positioning frame moves together with the pressing plate.

[0007] Preferably, a pair of fixed legs are fixed to the circumferential outer wall of the positioning frame below the filter cloth, and the other ends of the fixed legs are fixedly connected to the connecting rod, so that when the filter press unit moves up and down, the positioning frame will be driven to move together.

[0008] Preferably, the sludge feeding assembly includes a first pipe and a first pipe joint, the first pipe and the first pipe joint are respectively fixed on different sides of one of the first blocks, and the first pipe and the first pipe joint are connected, the other outlet of the first pipe is connected to the second hose, the other outlet of the second hose is connected to the reserved pipe on the upper positioning frame, a one-way valve is installed in the reserved pipe, two pipe interfaces are provided on the first pipe joint, and the two pipe interfaces are connected between the two upper and lower adjacent first pipe joints through the first hose, a screw pump or a plunger pump is connected to a vacant pipe interface at the bottom, and then the sludge is quantitatively pumped in through the screw pump or the plunger pump, and the sludge will enter the multiple filter press units respectively along the first hose, and then enter the first pipe from the first pipe joint on each filter press unit, and then enter the positioning frame through the second hose.

[0009] Preferably, the drainage component includes a second pipe and a second pipe joint, the second pipe and the second pipe joint are respectively fixed on different sides of one of the second blocks, and the second pipe and the second pipe joint are connected, the other outlet of the second pipe is connected to a third hose, the other outlet of the third hose is connected to another reserved pipe on the upper positioning frame, a one-way valve is installed in the reserved pipe, two pipe interfaces are provided on the second pipe joint, the two pipe interfaces between the two upper and lower adjacent second pipe joints are connected by a fourth hose, and the drainage pipe is connected to a vacant pipe interface at the bottom, so that the water pressed out of the positioning frame of each filter press unit will enter the third hose, and then enter the second pipe, and then flow into the fourth hose through the second pipe joint, and finally flow out from the drainage pipe.

[0010] Preferably, two adjacent filter press units are connected together by four positioning components, each positioning component slidingly connects the first block and the second block of the upper and lower groups, and the two adjacent positioning components are staggered with each other. The positioning component includes a guide sleeve, a base plate and a guide column, the guide column is inserted into the guide sleeve, and the base plate is fixed to the bottom end of the guide column, so that the two adjacent filter press units can be limited in the vertical direction by the sliding cooperation between the guide column and the guide sleeve, and when the upper filter press unit moves upward, the next filter press unit can be driven upward by the positioning component.

[0011] Preferably, positioning sleeves are fixed at the four corners of the pressure plate, positioning columns are inserted on the positioning sleeves, and the bottom ends of the positioning columns are fixed on the corresponding first block or second block below, so that a vertical limit is formed between the pressure plate and the filter press unit below, and when the pressure plate moves upward, the filter press unit can be driven upward by the positioning sleeves and the positioning columns.

[0012] Compared with the prior art, the present invention provides a vertical sludge dewatering high-pressure filter press, which has the following beneficial effects:

[0013] 1. A vertical sludge dewatering high-pressure filter press, by setting filter cloth, starting the motors of the lower group and the upper group in turn, discharging in two groups, the motor will drive one of the rotating shafts to rotate, and the rotating shaft will roll up the filter cloth on the other rotating shaft, so that the filter cloth will move and drive the mud cake to discharge to one side. After the discharge is completed, the motor will rotate in the opposite direction to drive the filter cloth to reset, thereby effectively improving the discharge efficiency.

[0014] 2. A vertical sludge dewatering high-pressure filter press, which sets a sludge feeding assembly, connects a screw pump or a plunger pump to a vacant pipe interface at the bottom, and then pumps the sludge quantitatively through the screw pump or the plunger pump. The sludge will enter multiple filter press units along the first hose, and then enter the first pipeline from the first pipe joint on each filter press unit, and then enter the positioning frame through the second hose.

[0015] 3. A vertical sludge dewatering high-pressure filter press, which connects the drainage pipe to a vacant pipe interface at the bottom by setting a drainage component, so that the water pressed out of the positioning frame of each filter press unit will enter the third hose, then enter the second pipe, and then flow into the fourth hose through the second pipe joint, and finally flow out from the drainage pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a vertical sludge dewatering high-pressure filter press proposed by the present invention;

[0017] Figure 2 This is a schematic diagram of the installation structure between all filter press units of a vertical sludge dewatering high-pressure filter press proposed by the present invention;

[0018] Figure 3 This is a schematic diagram of the installation structure between some filter press units of a vertical sludge dewatering high-pressure filter press proposed by the present invention;

[0019] Figure 4 This is a schematic diagram of the top structure of a filter press unit of a vertical sludge dewatering high-pressure filter press proposed by the present invention;

[0020] Figure 5 This is a schematic diagram of the bottom structure of a filter press unit of a vertical sludge dewatering high-pressure filter press proposed by the present invention;

[0021] Figure 6 For the present invention Figure 3 A schematic diagram of the enlarged structure at point A;

[0022] Figure 7 The present invention provides a schematic diagram of the installation structure between a pressing plate and a filter press unit of a vertical sludge dewatering high-pressure filter press.

[0023] In the figure: 1, frame; 2, base; 3, first block; 4, second block; 5, rotating shaft; 6, filter cloth; 7, pressing plate; 8, positioning frame; 9, connecting rod; 10, fixed leg; 11, motor; 12, first pipe joint; 13, first hose; 14, first pipeline; 15, second hose; 16, reserved pipe; 17, second pipe joint; 18, second pipeline; 19, third hose; 20, fourth hose; 21, guide sleeve; 22, bottom plate; 23, guide column; 24, hydraulic cylinder; 25, positioning sleeve; 26, positioning column. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] Reference Figure 1-7 A vertical sludge dewatering high-pressure filter press comprises a frame 1 and a base 2. The frame 1 is fixed on the top of the base 2. A hydraulic cylinder 24 is fixed through the top of the frame 1. The output shaft of the hydraulic cylinder 24 is connected to a pressure plate 7. The bottom of the pressure plate 7 is connected to a plurality of filter press units connected in sequence. The directions of two adjacent filter press units are opposite. The filter press unit comprises a pair of first blocks 3 and second blocks 4. A rotating shaft 5 is rotatably connected between the two first blocks 3 and the two second blocks 4. One group of the first blocks 3 and the second blocks 4 are fixed together by a connecting rod 9. A filter cloth 6 is wound between the two rotating shafts 5. The two ends of the filter cloth 6 are respectively fixed on the circumferential outer walls of the two rotating shafts 5. A motor 11 is fixed to the outer end of one of the first blocks 3. The output shaft of the motor 11 is connected to the end of the rotating shaft 5. Positioning frames 8 are arranged below the pressure plate 7 and the filter cloth 6. The positioning frame 8 is connected to a sludge feeding group The sludge is fed into each group of positioning frames 8 and filter cloth 6 through the sludge feeding assembly, and then the pressure plate 7 and multiple filter pressing units are driven downward by the output shaft of the hydraulic cylinder 24 to squeeze the sludge between the positioning frame 8 and the filter cloth 6, and the squeezed water can be discharged through the drainage assembly. Finally, the sludge forms a mud cake between the positioning frame 8 and the filter cloth 6, and then the pressure plate 7 and multiple filter pressing units are driven upward by the output shaft of the hydraulic cylinder 24, and the positioning frame 8 will be moved away from the mud cake, and then the motors 11 of the lower and upper groups are started successively, and the material is discharged in two groups. The motor 11 will drive one of the rotating shafts 5 to rotate, and the rotating shaft 5 will reel in the filter cloth 6 on the other rotating shaft 5, so that the filter cloth 6 will move to drive the mud cake to discharge to one side. After the discharge is completed, the motor 11 rotates in the opposite direction to drive the filter cloth 6 to reset, thereby effectively improving the discharge efficiency.

[0027] The positioning frame 8 below the pressing plate 7 is directly fixed to the pressing plate 7 , so that the positioning frame 8 moves together with the pressing plate 7 .

[0028] A pair of fixed legs 10 are fixed to the circumferential outer wall of the positioning frame 8 below the filter cloth 6, and the other end of the fixed legs 10 is fixedly connected to the connecting rod 9, so that when the filter press unit moves up and down, it will drive the positioning frame 8 to move together.

[0029] Among them, the sludge feeding assembly includes a first pipe 14 and a first pipe joint 12, the first pipe 14 and the first pipe joint 12 are respectively fixed on different sides of one of the first blocks 3, and the first pipe 14 and the first pipe joint 12 are connected, the other outlet of the first pipe 14 is connected to the second hose 15, the other outlet of the second hose 15 is connected to the reserved pipe 16 on the upper positioning frame 8, a one-way valve is installed in the reserved pipe 16, the first pipe joint 12 is provided with two pipe interfaces, the two upper and lower adjacent first pipe joints 12 are connected to the two pipe interfaces through the first hose 13, the screw pump or the plunger pump is connected to the empty pipe interface at the bottom, and then the sludge is quantitatively pumped in through the screw pump or the plunger pump, the sludge will enter the multiple filter press units respectively along the first hose 13, and then enter the first pipe 14 from the first pipe joint 12 on each filter press unit, and then enter the positioning frame 8 through the second hose 15.

[0030] Among them, the drainage component includes a second pipe 18 and a second pipe joint 17, the second pipe 18 and the second pipe joint 17 are respectively fixed on different sides of one of the second blocks 4, and the second pipe 18 and the second pipe joint 17 are connected, and the other outlet of the second pipe 18 is connected to the third hose 19, and the other outlet of the third hose 19 is connected to another reserved pipe 16 on the upper positioning frame 8. A one-way valve is installed in the reserved pipe 16, and two pipe interfaces are provided on the second pipe joint 17. The two pipe interfaces are connected between the two adjacent second pipe joints 17 above and below through the fourth hose 20, and the drainage pipe is connected to the empty pipe interface at the bottom, so that the water pressed out of the positioning frame 8 of each filter press unit will enter the third hose 19, and then enter the second pipe 18, and then flow into the fourth hose 20 through the second pipe joint 17, and finally flow out from the drainage pipe.

[0031] Among them, two adjacent filter press units are connected together through four positioning components, each positioning component slidably connects the first block 3 and the second block 4 of the upper and lower groups, and the two adjacent positioning components are staggered with each other. The positioning component includes a guide sleeve 21, a bottom plate 22 and a guide column 23. The guide column 23 is inserted into the guide sleeve 21, and the bottom plate 22 is fixed to the bottom end of the guide column 23. In this way, the two adjacent filter press units can be limited in the vertical direction by the sliding cooperation between the guide column 23 and the guide sleeve 21, and when the upper filter press unit moves upward, the next filter press unit can be driven upward by the positioning component.

[0032] Among them, positioning sleeves 25 are fixed at the four corners of the pressure plate 7, and positioning columns 26 are inserted on the positioning sleeves 25. The bottom end of the positioning column 26 is fixed on the corresponding first block 3 or second block 4 below, so that a vertical limit is formed between the pressure plate 7 and the filter press unit below, and when the pressure plate 7 moves upward, the filter press unit can be driven upward by the positioning sleeves 25 and the positioning columns 26.

[0033] Working principle: connect the screw pump or plunger pump to a pipe interface vacant at the bottom, connect the drainage pipe to another pipe interface vacant at the bottom, and then pump the sludge quantitatively through the screw pump or plunger pump. The sludge will enter multiple filter press units along the first hose 13, and then enter the first pipe 14 from the first pipe joint 12 on each filter press unit, and then enter each group of positioning frames 8 and filter cloth 6 through the second hose 15. Then, the output shaft of the hydraulic cylinder 24 drives the pressure plate 7 and multiple filter press units to move downward, so that the sludge between the positioning frame 8 and the filter cloth 6 can be squeezed, so that the water pressed out of the positioning frame 8 of each filter press unit will enter The sludge flows into the third hose 19, and then enters the second pipe 18, and then flows into the fourth hose 20 through the second pipe joint 17, and finally flows out from the drainage pipe. Finally, the sludge forms a mud cake between the positioning frame 8 and the filter cloth 6, and then the pressure plate 7 and multiple filter pressing units are driven to move upward through the output shaft of the hydraulic cylinder 24, and the positioning frame 8 will be removed from the mud cake. Then, the motors 11 of the lower and upper groups are started successively, and the material is discharged in two groups. The motor 11 will drive one of the rotating shafts 5 to rotate, and the rotating shaft 5 will reel in the filter cloth 6 on the other rotating shaft 5, so that the filter cloth 6 will move to drive the mud cake to discharge to one side. After the discharge is completed, the motor 11 rotates in the opposite direction to drive the filter cloth 6 to reset.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A vertical sludge dewatering high-pressure filter press, comprising a frame (1) and a base (2), characterized in that: The frame (1) is fixed on the top of the base (2), a hydraulic cylinder (24) is fixed through the top of the frame (1), the output shaft of the hydraulic cylinder (24) is connected to a pressure plate (7), the bottom of the pressure plate (7) is connected to a plurality of filter press units connected in sequence, two adjacent filter press units are oriented in opposite directions, the filter press unit comprises a pair of first blocks (3) and second blocks (4), the two first blocks (3) and the two second blocks (4) are respectively rotatably connected to a rotating shaft (5), wherein a group of the first blocks (3) ) and the second block (4) are fixed together by a connecting rod (9), a filter cloth (6) is wound between the two rotating shafts (5), and the two ends of the filter cloth (6) are respectively fixed on the circumferential outer walls of the two rotating shafts (5), a motor (11) is fixed to the outer end of one of the first blocks (3), and the output shaft of the motor (11) is connected to the end of the rotating shaft (5), and a positioning frame (8) is provided below the pressing plate (7) and the filter cloth (6), and the positioning frame (8) is connected to the sludge feeding assembly and the drainage assembly.

2. A vertical sludge dewatering high-pressure filter press according to claim 1, characterized in that: The positioning frame (8) below the pressing plate (7) is directly fixed to the pressing plate (7).

3. The vertical sludge dewatering high-pressure filter press according to claim 1, characterized in that: A pair of fixed legs (10) are fixed to the circumferential outer wall of the positioning frame (8) below the filter cloth (6), and the other ends of the fixed legs (10) are fixedly connected to the connecting rod (9).

4. The vertical sludge dewatering high-pressure filter press according to claim 1, characterized in that: The sludge feeding assembly comprises a first pipe (14) and a first pipe joint (12), the first pipe (14) and the first pipe joint (12) are respectively fixed on different sides of one of the first blocks (3), and the first pipe (14) and the first pipe joint (12) are connected, the other outlet of the first pipe (14) is connected to a second hose (15), the other outlet of the second hose (15) is connected to a reserved pipe (16) on an upper positioning frame (8), the first pipe joint (12) is provided with two pipe interfaces, and the two pipe interfaces of two upper and lower adjacent first pipe joints (12) are connected via a first hose (13).

5. The vertical sludge dewatering high-pressure filter press according to claim 1, characterized in that: The drainage assembly comprises a second pipe (18) and a second pipe joint (17), the second pipe (18) and the second pipe joint (17) are respectively fixed on different sides of one of the second blocks (4), and the second pipe (18) and the second pipe joint (17) are connected, the other outlet of the second pipe (18) is connected to a third hose (19), the other outlet of the third hose (19) is connected to another reserved pipe (16) on the upper positioning frame (8), the second pipe joint (17) is provided with two pipe interfaces, and the two pipe interfaces of two upper and lower adjacent second pipe joints (17) are connected through a fourth hose (20).

6. The vertical sludge dewatering high-pressure filter press according to claim 1, characterized in that: Two adjacent filter press units are connected together via four positioning components, each positioning component slidably connects a first block (3) and a second block (4) in an upper and lower group, and two upper and lower adjacent positioning components are staggered. The positioning component comprises a guide sleeve (21), a bottom plate (22) and a guide column (23), the guide column (23) is inserted into the guide sleeve (21), and the bottom plate (22) is fixed to the bottom end of the guide column (23).

7. The vertical sludge dewatering high-pressure filter press according to claim 1, characterized in that: Positioning sleeves (25) are fixed at the four corners of the pressing plate (7), and positioning columns (26) are inserted into the positioning sleeves (25). The bottom ends of the positioning columns (26) are fixed to the corresponding first blocks (3) or second blocks (4) below.

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