Centrifugal dewatering device for sludge

Abstract

The invention discloses a sludge centrifugal dewatering device which comprises a barrel body, a supporting plate arranged between the barrel body and a hopper, a driving motor arranged at the bottom of the barrel body, a filter screen arranged between the inner walls of the upper end of the hopper, and a mounting frame body located in a frame body and above the filter screen, wherein a plurality of mounting rods are mounted in the mounting frame body at intervals; one end of a mounting shaft is fixedly sleeved with a first gear connected with the first rack in a meshed mode, the other end of the mounting shaft is fixedly sleeved with a second gear connected with the second rack in a meshed mode, a circular plate is arranged on one side of the barrel body, and a pin shaft provided with a connecting rod is eccentrically arranged at the top of the circular plate. And a transmission mechanism for driving the circular plate to rotate is arranged between the circular plate and the driving motor. According to the sludge centrifugal dewatering device, classified filtering of sludge is achieved, the situation that the filter screen is blocked by blocky soil and impurities is greatly reduced, the fluidity of the sludge is improved, and the overall filtering efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of sludge dehydration, in particular to a sludge centrifugal dehydration device. Background Art

[0002] The sludge centrifugal dewatering device uses the physical and mechanical principles of centrifugal force, sedimentation force and filtrate pressure to recover the filtrate to achieve the effect of separating water and mud. The sludge may be mixed with hard objects such as agglomerated soil and stones, which will damage the screen drum if put into the sludge centrifugal dewatering device.

[0003] In the prior art, a centrifugal dehydration device is generally provided with a filter screen or a filter plate, which can filter larger stones or other block-shaped impurities. However, during the filtering process, the larger stones or block-shaped impurities will be blocked on the filter screen, preventing the sludge from passing through the filter screen, resulting in low filtration efficiency. Summary of the invention

[0004] The object of the present invention is to provide a sludge centrifugal dewatering device, which can realize graded filtration of sludge, greatly reduce the blockage of filter screen by blocky soil and impurities, improve the fluidity of sludge and improve the overall filtration efficiency.

[0005] To achieve the above object, the technical solution adopted by the present invention is: a sludge centrifugal dewatering device, comprising: a barrel, a screen cylinder located inside the barrel, and a hopper arranged above the screen cylinder, the barrel and the screen cylinder are both provided with openings at their upper ends, a support plate is provided between the barrel and the hopper, and both sides of the hopper are slidably connected to the support plate, a driving motor is provided at the bottom of the barrel, and the output shaft of the driving motor passes through the barrel and is connected to the screen cylinder; A filter screen is arranged between the inner walls of the upper end of the hopper, a frame is fixedly installed concentrically on the top of the hopper, and a mounting frame with a plurality of mounting rods installed at intervals inside is arranged inside the frame and above the filter screen, and the mounting frame can slide along the inner surface of the frame; A second rack is fixedly installed at the four corners of the top of the installation frame, a first rack is arranged on both sides of the outside of the frame and above the support plate, a mounting shaft is rotatably installed on the top of the frame, and one end of the mounting shaft is fixedly sleeved with a first gear meshing with the first rack, and the other end is fixedly sleeved with a second gear meshing with the second rack, a circular plate is arranged on one side of the barrel body, and a pin shaft with a connecting rod is eccentrically arranged on the top of the circular plate, the connecting rod is movably connected to the hopper, and a transmission mechanism for driving the circular plate to rotate is arranged between the circular plate and the driving motor.

[0006] The further improved scheme in the above technical scheme is as follows: 1. In the above scheme, a push block is arranged at an interval inside the frame, a plurality of tapered rods are arranged on the top and both sides of the push block, and the tapered rods are arranged at intervals along the length direction of the push block, a sliding rod is vertically arranged at both ends of the top of the push block, and a fixed pipe fitting connected with a nut is arranged on the circumferential outer wall of the sliding rod, a lead screw is fixedly connected between the two mounting shafts on the same side, and the nut is movably sleeved on the outer wall of the lead screw.

[0007] 2. In the above solution, a baffle is fixedly mounted on the upper end of the sliding rod, and a spring is disposed between the baffle and the fixed pipe and on the outer wall of the sliding rod.

[0008] 3. In the above scheme, the transmission mechanism includes: a first transmission shaft located on one side of the barrel body and arranged vertically, and a second transmission shaft located at the bottom of the barrel body, the circular plate is installed on the upper end of the first transmission shaft, the lower end of the first transmission shaft and one end of the second transmission shaft are fixedly sleeved with a first bevel gear, and the two first bevel gears are meshed and connected with each other, and the other end of the second transmission shaft and the outer wall of the output shaft of the driving motor are sleeved with a second bevel gear, and the two second bevel gears are meshed and connected with each other.

[0009] 4. In the above solution, a fixing plate is provided between the first transmission shaft, the second transmission shaft and the outer wall of the barrel body, and the first transmission shaft and the second transmission shaft are rotatably connected to the fixing plate via bearings.

[0010] 5. In the above solution, a fixed block is provided at one end of the hopper, and the connecting rod is movably connected to the fixed block via a pin.

[0011] 6. In the above scheme, a fixed sliding block is provided on both sides of the hopper, and a slide rail for slidingly installing the fixed sliding block is provided between the hopper and the support plate.

[0012] 7. In the above solution, the first rack is fixedly mounted on the top of the slide rail through a connecting block.

[0013] 8. In the above solution, a long strip block with a dovetail groove is fixedly installed inside the frame on one side relative to the second rack, and the second rack is slidably connected to the long strip block through a dovetail block.

[0014] 9. In the above solution, a water outlet pipe is provided on the lower side wall of the barrel body.

[0015] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: 1. The sludge centrifugal dewatering device of the present invention has a support plate between the barrel and the hopper, a filter screen is arranged between the inner walls of the upper end of the hopper, a frame is fixedly installed on the top of the hopper in a concentric manner, a mounting shaft is rotatably installed on the top of the frame, and a first gear meshingly connected to a first rack is fixedly sleeved at one end of the mounting shaft, and a second gear meshingly connected to a second rack is fixedly sleeved at the other end, a circular plate is arranged on one side of the barrel, and a pin shaft with a connecting rod is eccentrically arranged on the top of the circular plate, the connecting rod is movably connected to the hopper, and a transmission mechanism for driving the circular plate to rotate is arranged between the circular plate and the driving motor By arranging a hopper slidably connected to the support plate above the screen drum, and the mounting frame having a screen and a plurality of mounting rods installed at intervals inside, graded filtration of the sludge can be achieved, and the disc can be driven to rotate to drive the hopper to slide repeatedly along the support plate, so that the hopper shakes, which is conducive to the sludge falling from between the mounting rods into the screen, improving the fluidity of the sludge, and during the shaking process of the hopper, it can also drive the second rack to move up and down, thereby adjusting the distance between the mounting frame and the filter, making it easier for the sludge to pass through the gap between the mounting rods, greatly reducing the blockage of blocky soil and impurities, and improving the overall filtration efficiency.

[0016] 2. The sludge centrifugal dewatering device of the present invention has a push block arranged at intervals inside the frame, a plurality of tapered rods are arranged on the top and both sides of the push block, and the tapered rods are arranged at intervals along the length direction of the push block, a sliding rod is arranged in a vertical manner at both ends of the top of the push block, and a fixed pipe fitting connected with a nut is arranged on the circumferential outer wall of the sliding rod, a lead screw is fixedly connected between the two mounting shafts located on the same side, and the nut is movably sleeved on the outer wall of the lead screw, when the sludge is poured into the frame, the tapered rod on the push block can preliminarily divert and crush the sludge and mud, and the nut can be driven to rotate by the rotation of the lead screw to drive the push block to move inside the frame, so that the tapered rod on the push block can further crush the agglomerated mud and sludge, which is conducive to the crushed mud passing through the filter net, greatly reducing the situation that the agglomerated mud is difficult to filter and occupies the internal space of the frame to cause the sludge to overflow, thereby improving the overall filtering efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Attached Figure 1 It is a structural schematic diagram of the sludge centrifugal dewatering device of the present invention; Attached Figure 2 It is a schematic diagram of the internal structure of the sludge centrifugal dewatering device of the present invention; Attached Figure 3 It is a structural schematic diagram of the transmission mechanism in the sludge centrifugal dewatering device of the present invention; Attached Figure 4 The partial structure diagram of the centrifugal dewatering device of the present invention is shown in FIG. Figure 1 ; Attached Figure 5 The partial structure diagram of the centrifugal dewatering device of the present invention is shown in FIG. Figure 2 ; Attached Figure 6 It is a structural schematic diagram of the installation frame in the sludge centrifugal dewatering device of the present invention; Attached Figure 7 It is a structural schematic diagram of a fixed frame in the sludge centrifugal dewatering device of the present invention; Attached Figure 8 It is a schematic diagram of the structure of the long strip block in the sludge centrifugal dewatering device of the present invention; Attached Fig. 9 It is a schematic diagram of the structure of the lead screw in the sludge centrifugal dewatering device of the present invention; Attached Fig.10 It is a schematic diagram of the structure of the push block in the sludge centrifugal dewatering device of the present invention.

[0018] In the above drawings: 1, support leg; 2, barrel; 3, screen drum; 4, support plate; 5, slide rail; 6, first gear; 7, first rack; 8, frame; 9, fixed block; 10, connecting rod; 11, round plate; 12, fixed plate; 13, first transmission shaft; 14, first bevel gear; 15, second transmission shaft; 16, drive motor; 17, second bevel gear; 18, hopper; 20, nut; 21, lead screw; 22, tension spring; 23, second rack; 24, second gear; 25, tapered rod; 26, push block; 27, baffle; 28, long strip block; 29, installation frame; 30, installation rod; 31, installation shaft; 32, dovetail block; 33, dovetail groove; 34, filter; 35, fixed pipe fitting; 36, water outlet pipe; 37, fixed slider; 38, sliding rod; 39, connecting block. Implementation

[0019] The present invention can be further understood through the specific embodiments given below, but they are not intended to limit the present invention.

[0020] Embodiment 1: A sludge centrifugal dewatering device comprises: a barrel body 2, a screen drum 3 located inside the barrel body 2, and a hopper 18 arranged above the screen drum 3, the upper ends of the barrel body 2 and the screen drum 3 are both provided with openings, a support plate 4 is provided between the barrel body 2 and the hopper 18, and both sides of the hopper 18 are slidably connected to the support plate 4, a driving motor 16 is provided at the bottom of the barrel body 2, and the output shaft of the driving motor 2 passes through the barrel body 2 and is connected to the screen drum 3; As the hopper moves back and forth, the hopper drives the mounting shaft to move synchronously through the bearing seat, and the mounting shaft drives the first gear to move synchronously. When the first gear moves, it contacts the tooth block of the first rack and generates a deflection force when it continues to move, so that the first gear is subjected to a torque force, which facilitates the first gear to reciprocate on the bearing seat through the mounting shaft. The mounting shaft drives the second gear to reciprocate synchronously, and the second gear drives the second rack to reciprocate in the vertical direction. A filter screen 34 is provided between the inner walls of the upper end of the hopper 18, a frame 8 is fixedly installed concentrically on the top of the hopper 18, and a mounting frame 29 with a plurality of mounting rods 30 installed at intervals inside is provided inside the frame 8 and above the filter screen 34, and the mounting frame 29 can slide along the inner surface of the frame 8; While the hopper is reciprocating, the two first racks drive the four first gears to move synchronously, and at the same time control the four second racks to move synchronously, so that the four second racks drive the mounting frame and the multiple mounting rods to reciprocate in the vertical direction; A second rack 23 is fixedly installed at the four corners of the top of the installation frame 29, a first rack 7 is provided on both sides of the outside of the frame 8 and above the support plate 4, a mounting shaft 31 is rotatably installed on the top of the frame 8, and one end of the mounting shaft 31 is fixedly sleeved with a first gear 6 meshing with the first rack 7, and the other end is fixedly sleeved with a second gear 24 meshing with the second rack 23, a circular plate 11 is provided on one side of the barrel body 2, and a pin shaft with a connecting rod 10 is eccentrically provided on the top of the circular plate 11, the connecting rod 10 is movably connected to the hopper 18, and a transmission mechanism for driving the circular plate 11 to rotate is provided between the circular plate 11 and the drive motor 2; When the mounting frame and the mounting rods move upward, the mounting frame and the mounting rods are separated from the smaller agglomerated soil on the filter screen, and when the mounting frame and the mounting rods move downward, the bottom of the mounting frame and the mounting rods are pressed on the smaller agglomerated soil. The smaller agglomerated soil is not only subjected to the pressing force in the vertical direction, but also to the force in the horizontal direction of the hopper, so that the smaller agglomerated soil can be quickly crushed, preventing the smaller agglomerated soil from falling into the screen drum and causing the filter holes to be blocked, thereby improving the centrifugal dehydration efficiency of the screen drum for sludge.

[0021] A push block 26 is arranged at intervals inside the frame 8, and a plurality of tapered rods 25 are arranged at the top and both sides of the push block 26, and the tapered rods 25 are arranged at intervals along the length direction of the push block 26, and a sliding rod 38 is vertically arranged at both ends of the top of the push block 26, and a fixed pipe 35 connected with a nut 20 is arranged on the circumferential outer wall of the sliding rod 38, and a lead screw 21 is fixedly connected between the two mounting shafts 31 on the same side, and the nut 20 is movably sleeved on the outer wall of the lead screw 21; As the four mounting shafts rotate synchronously, the two lead screws rotate synchronously with the four mounting shafts. At this time, the two lead screws apply torque to the four nuts, and the nuts are subjected to the torque and transmit the torque to the fixed pipe fittings, the sliding rods and the push block. Since both ends of the push block are subjected to the torque of the two nuts, and the two torques cancel each other out, the two nuts slide on the surfaces of the two lead screws respectively after being subjected to the force, so that the four nuts drive the two push blocks to slide on the top of the mounting frame and the multiple mounting rods through the four fixed pipe fittings and the four sliding rods. The push block drives the sliding rod upward to slide in the fixed pipe, and the sliding rod simultaneously drives the baffle plate to move upward, and the baffle plate pulls the tension spring upward. The tension spring generates a reaction force after the length of the tension spring is extended. As the mounting frame and multiple mounting rods move downward, the tension spring pulls the baffle plate in the opposite direction without being affected by external force. The baffle plate pulls the mounting rod downward synchronously, and the sliding rod pushes the push block to fit tightly against the surface of the mounting frame and multiple mounting rods, thereby facilitating the push block to move in the vertical direction while also facilitating the horizontal longitudinal direction, further improving the efficiency of the push block in crushing larger agglomerated soil.

[0022] A baffle 27 is fixedly mounted on the upper end of the sliding rod 38 . A spring 22 is sleeved on the outer wall of the sliding rod 38 and is located between the baffle 27 and the fixed pipe 35 .

[0023] The transmission mechanism comprises: a first transmission shaft 13 located at one side of the barrel body 2 and arranged in a vertical manner, and a second transmission shaft 15 located at the bottom of the barrel body 2, the circular plate 11 is installed at the upper end of the first transmission shaft 13, the lower end of the first transmission shaft 13 and one end of the second transmission shaft 15 are both fixedly sleeved with a first bevel gear 14, and the two first bevel gears 14 are meshed and connected with each other, and the other end of the second transmission shaft 15 and the outer wall of the output shaft of the driving motor 2 are both sleeved with a second bevel gear 17, and the two second bevel gears 17 are meshed and connected with each other; The movable end of the driving motor is controlled to rotate, and the movable end of the driving motor controls the rotation of the screen drum. At the same time, the movable end of the driving motor controls the rotation of the second transmission shaft through two second bevel gears, and the second transmission shaft controls the rotation of the first transmission shaft through two first bevel gears. The first transmission shaft drives the circular plate to rotate synchronously, and the circular plate drives the connecting rod to perform circular motion through the pin shaft; At the same time, the connecting rod pulls or pushes the fixed block through the pin shaft. After the fixed block is stressed, it drives the hopper to move back and forth in the two slide rails through the two fixed sliders. As the hopper moves back and forth, the sludge is stressed and vibrates and falls from the gap between the two adjacent mounting rods to the top of the filter screen, while the larger stones or agglomerated soil in the sludge slide on the surface of the mounting frame and multiple mounting rods, which is used to filter out the larger stones or agglomerated soil in the sludge. The filter is used to filter out small-volume agglomerated soil in the silt, and has a blocking and filtering effect on stones or agglomerated soil in the silt. There is no need to discharge the stones in the silt. At the same time, the reciprocating hopper can also facilitate the silt to fall into the screen drum, thereby improving the smoothness of the silt flow in the hopper.

[0024] A fixing plate 12 is disposed between the first transmission shaft 13 , the second transmission shaft 15 and the outer wall of the barrel body 2 , and the first transmission shaft 13 , the second transmission shaft 15 are rotatably connected to the fixing plate 12 via bearings.

[0025] A fixed slider 37 is disposed on both sides of the hopper 18 , and a slide rail 5 for the fixed slider 37 to be slidably installed is disposed between the hopper 18 and the support plate 4 .

[0026] The first rack 7 is fixedly mounted on the top of the slide rail 5 via a connecting block 39 .

[0027] The frame 8 is fixedly installed with a long block 28 with a dovetail groove 33 inside on one side relative to the second rack 23. The second rack 23 is slidably connected to the long block 28 via a dovetail block 32. When the second rack is subjected to force, the dovetail block drives the dovetail groove to slide, thereby preventing the second rack from shifting in the horizontal direction and improving the stability of the second rack sliding in the vertical direction.

[0028] The inner cavity size of the fixing frame 8 is the same as the surface size of the mounting frame 29 .

[0029] The installation shaft 31 is connected to the frame 8 via a bearing seat.

[0030] Embodiment 2: A sludge centrifugal dewatering device comprises: a barrel body 2, a screen drum 3 located inside the barrel body 2, and a hopper 18 arranged above the screen drum 3, the upper ends of the barrel body 2 and the screen drum 3 are both provided with openings, a support plate 4 is provided between the barrel body 2 and the hopper 18, and both sides of the hopper 18 are slidably connected to the support plate 4, a driving motor 16 is provided at the bottom of the barrel body 2, and the output shaft of the driving motor 2 passes through the barrel body 2 and is connected to the screen drum 3; A filter screen 34 is provided between the inner walls of the upper end of the hopper 18, a frame 8 is fixedly installed concentrically on the top of the hopper 18, and a mounting frame 29 with a plurality of mounting rods 30 installed at intervals inside is provided inside the frame 8 and above the filter screen 34, and the mounting frame 29 can slide along the inner surface of the frame 8; By arranging a hopper slidably connected to the support plate above the screen drum, and the mounting frame having a screen and a plurality of mounting rods installed at intervals inside, graded filtration of sludge can be achieved; A second rack 23 is fixedly mounted at each of the four corners on the top of the mounting frame 29, a first rack 7 is disposed on both sides of the outside of the frame 8 and above the support plate 4, a mounting shaft 31 is rotatably mounted on the top of the frame 8, and one end of the mounting shaft 31 is fixedly sleeved with a first gear 6 meshingly connected to the first rack 7, and the other end is fixedly sleeved with a second gear 24 meshingly connected to the second rack 23; The disc can also be driven to rotate, thereby driving the hopper to slide repeatedly along the support plate, so that the hopper shakes, which is conducive to the sludge falling from between the mounting rods into the screen, improving the fluidity of the sludge, and during the shaking process of the hopper; A circular plate 11 is disposed on one side of the barrel body 2, and a pin shaft with a connecting rod 10 is eccentrically disposed on the top of the circular plate 11, the connecting rod 10 is movably connected to the hopper 18, and a transmission mechanism for driving the circular plate 11 to rotate is disposed between the circular plate 11 and the driving motor 2; It can also drive the second rack to move up and down, thereby adjusting the distance between the mounting frame and the filter screen. Since the gap between the mounting rods inside the mounting frame is larger than the gap between the filter screen, the speed at which the silt passes through the mounting rods and the filter screen is inconsistent, and the silt is easily accumulated on the filter screen. By increasing the distance between the mounting frame and the filter screen, the situation in which the accumulated silt hinders the movement can be reduced, and the gravity above the filter screen is increased, which makes it easier for the silt to pass through the filter screen and the gap between the mounting rods, greatly reducing the blockage of lumps of soil and impurities and improving the overall filtration efficiency.

[0031] A push block 26 is arranged at intervals inside the frame 8, and a plurality of tapered rods 25 are arranged at the top and both sides of the push block 26, and the tapered rods 25 are arranged at intervals along the length direction of the push block 26, and a sliding rod 38 is vertically arranged at both ends of the top of the push block 26, and a fixed pipe 35 connected with a nut 20 is arranged on the circumferential outer wall of the sliding rod 38, and a lead screw 21 is fixedly connected between the two mounting shafts 31 on the same side, and the nut 20 is movably sleeved on the outer wall of the lead screw 21; When dumping silt into the frame, the tapered rod on the push block can initially divert and crush the silt and soil, and the screw can also be rotated to drive the nut to rotate, thereby driving the push block to move inside the frame, so that the tapered rod on the push block can further crush the agglomerated soil and silt, which is conducive to the crushed soil passing through the filter net, greatly reducing the situation where the agglomerated soil is difficult to filter and occupies the internal space of the frame to cause silt overflow, thereby improving the overall filtration efficiency.

[0032] A baffle 27 is fixedly mounted on the upper end of the sliding rod 38, and a spring 22 is sleeved on the outer wall of the sliding rod 38 between the baffle 27 and the fixed pipe 35; When pushing a large amount of agglomerated soil, the soil is subjected to force and then slides on the top of the installation frame and multiple installation rods, and the hopper is moving back and forth at this time, which makes it convenient for the hopper to drive the large amount of agglomerated soil to slide synchronously, so that the large amount of agglomerated soil is subjected to forces in different directions and collides, thereby improving the efficiency of crushing the large amount of agglomerated soil. The setting of the conical rod, due to the small tip area of ​​the conical rod, improves the crushing effect of the conical rod on the large amount of agglomerated soil when the conical rod collides with the large amount of agglomerated soil, thereby improving the processing efficiency of the large amount of agglomerated soil.

[0033] The transmission mechanism includes: a first transmission shaft 13 located at one side of the barrel body 2 and arranged vertically, and a second transmission shaft 15 located at the bottom of the barrel body 2. The circular plate 11 is installed on the upper end of the first transmission shaft 13. The lower end of the first transmission shaft 13 and one end of the second transmission shaft 15 are fixedly sleeved with a first bevel gear 14, and the two first bevel gears 14 are meshed and connected with each other. The other end of the second transmission shaft 15 and the outer wall of the output shaft of the driving motor 2 are sleeved with a second bevel gear 17, and the two second bevel gears 17 are meshed and connected with each other.

[0034] A fixing plate 12 is disposed between the first transmission shaft 13 , the second transmission shaft 15 and the outer wall of the barrel body 2 , and the first transmission shaft 13 , the second transmission shaft 15 are rotatably connected to the fixing plate 12 via bearings.

[0035] A fixing block 9 is disposed at one end of the hopper 18, and the connecting rod 10 is movably connected to the fixing block 9 via a pin.

[0036] A fixed slider 37 is disposed on both sides of the hopper 18 , and a slide rail 5 for the fixed slider 37 to be slidably installed is disposed between the hopper 18 and the support plate 4 .

[0037] The first rack 7 is fixedly mounted on the top of the slide rail 5 via a connecting block 39 .

[0038] A water outlet pipe 36 is disposed on the lower side wall of the barrel body 2 .

[0039] The tapered rods 25 are arranged at equal intervals.

[0040] The working principle is: When in use, first control the active end of the driving motor to rotate, the active end of the driving motor controls the rotation of the screen drum, and at the same time, the active end of the driving motor controls the rotation of the second transmission shaft through the two second bevel gears, and the second transmission shaft controls the rotation of the first transmission shaft through the two first bevel gears. The first transmission shaft drives the circular plate to rotate synchronously, and the circular plate drives the connecting rod to perform circular motion through the pin shaft. At the same time, the connecting rod pulls or pushes the fixed block through the pin shaft. After the fixed block is subjected to force, it drives the hopper to reciprocate in the two slide rails through the two fixed sliders. As the hopper reciprocates, After the sludge is subjected to force, it vibrates and falls from the gap between two adjacent mounting rods to the top of the filter screen, while the larger stones or agglomerated soil in the sludge slide on the surface of the mounting frame and multiple mounting rods, which is used to filter out the larger stones or agglomerated soil in the sludge. The filter screen is used to filter out the smaller agglomerated soil in the sludge, and has a blocking and filtering effect on the stones or agglomerated soil in the sludge, without the need to discharge the stones in the sludge. At the same time, the reciprocating hopper can also facilitate the sludge to fall into the screen drum, thereby improving the smoothness of the sludge flowing in the hopper; As the hopper moves back and forth, the hopper drives the mounting shaft to move synchronously through the bearing seat, and the mounting shaft drives the first gear to move synchronously. When the first gear moves, it contacts the tooth block of the first rack and generates a deflection force when it continues to move, so that the first gear is subjected to a torque force, which facilitates the first gear to reciprocate on the bearing seat through the mounting shaft. The mounting shaft drives the second gear to reciprocate synchronously, and the second gear drives the second rack to reciprocate in the vertical direction. After the second rack is subjected to force, it drives the dovetail block to slide in the dovetail groove, thereby preventing the second rack from deviating in the horizontal direction and improving the stability of the second rack sliding in the vertical direction. When the hopper reciprocates, the two first racks drive the four first gears to move synchronously, and at the same time control the four second racks to move synchronously, so as to facilitate the four second racks to drive the mounting frame and the plurality of mounting rods to move reciprocally in the vertical direction. When the mounting frame and the plurality of mounting rods move upward, the mounting frame and the plurality of mounting rods are separated from the smaller agglomerated soil on the filter screen. When the mounting frame and the plurality of mounting rods move downward, the bottom of the mounting frame and the plurality of mounting rods is pressed on the smaller agglomerated soil. The smaller agglomerated soil is not only subjected to the pressing force in the vertical direction, but also to the force in the horizontal direction of the hopper, so that the smaller agglomerated soil can be quickly crushed, and the smaller agglomerated soil is prevented from falling into the screen drum and causing the filter holes to be blocked, so as to improve the centrifugal dehydration efficiency of the screen drum for sludge. As the four mounting shafts rotate synchronously, the two lead screws rotate synchronously with the four mounting shafts. At this time, the two lead screws apply torque forces to the four nuts, and the nuts are subjected to force to transmit the torque forces to the fixed pipe fittings, the sliding rods and the push blocks. Since both ends of the push blocks are subjected to the torque forces of the two nuts, and the two torque forces offset each other, the two nuts slide on the surfaces of the two lead screws respectively after being subjected to force, so that the four nuts drive the two push blocks to slide on the top of the mounting frame and the multiple mounting rods through the four fixed pipe fittings and the four sliding rods, and the push blocks drive the sliding rods to slide in the fixed pipe fittings upward, and the sliding rods synchronously drive the baffles to move upward, and the baffles pull the tension springs upward, and the length of the tension springs is extended to generate a reaction force. As the mounting frame and the multiple mounting rods move downward, the tension springs pull the baffles in the opposite direction without being affected by external forces, and the baffles pull the mounting rods downward synchronously, and the sliding rods push the push blocks to be close to the surfaces of the mounting frame and the multiple mounting rods, thereby facilitating the push blocks to move in the vertical direction while also facilitating the horizontal longitudinal movement, further improving the efficiency of the push blocks in crushing larger agglomerated soil; When pushing a large volume of agglomerated soil, the soil is subjected to force and then slides on the top of the mounting frame and multiple mounting rods, and at this time the hopper moves back and forth, which makes it convenient for the hopper to drive the large volume of agglomerated soil to slide synchronously, so that the large volume of agglomerated soil is subjected to forces in different directions and collides, thereby improving the efficiency of crushing the large volume of agglomerated soil; The setting of the conical rod, due to its small tip area, when the conical rod collides with large-volume agglomerated soil, the conical rod improves the crushing effect of the large-volume agglomerated soil, and improves the processing efficiency of the large-volume agglomerated soil.

[0041] When the above-mentioned sludge centrifugal dewatering device is used, a hopper slidably connected to the support plate is arranged above the screen drum, and the mounting frame having a screen and a plurality of mounting rods installed at intervals inside, on the basis of filtering the sludge twice through the mounting frame and the screen, the hopper can be driven to slide repeatedly along the support plate by driving the disc to rotate, which is conducive to the sludge falling from between the mounting rods into the screen, thereby improving the fluidity of the sludge in the hopper, and can also drive the second rack to move up and down, thereby adjusting the distance between the mounting frame and the filter, so that the sludge passes through the gap between the mounting rods, thereby improving the overall passing efficiency, when pouring the sludge into the frame, the sludge and soil can be initially diverted and crushed by the tapered rod on the push block, and the nut can be driven to rotate by the rotation of the lead screw to drive the push block to move inside the frame, so that the tapered rod on the push block can further crush the agglomerated soil and sludge, which is conducive to the crushed soil passing through the filter screen, greatly reducing the situation where the agglomerated soil blocks the filter screen and causes the sludge to overflow, thereby improving the overall filtering efficiency.

[0042] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A sludge centrifugal dewatering device, characterized in that: include: A barrel body (2), a screen drum (3) located inside the barrel body (2), and a hopper (18) arranged above the screen drum (3), wherein the upper ends of the barrel body (2) and the screen drum (3) are both provided with openings, a support plate (4) is provided between the barrel body (2) and the hopper (18), and both sides of the hopper (18) are slidably connected to the support plate (4), and a drive motor (16) is provided at the bottom of the barrel body (2), and the output shaft of the drive motor (2) passes through the barrel body (2) and is connected to the screen drum (3); A filter screen (34) is arranged between the inner walls of the upper end of the hopper (18); a frame (8) is fixedly mounted concentrically on the top of the hopper (18); a mounting frame (29) having a plurality of mounting rods (30) mounted therein at intervals is arranged inside the frame (8) and above the filter screen (34); and the mounting frame (29) is capable of sliding along the inner surface of the frame (8); A second rack (23) is fixedly mounted at each of the four corners on the top of the mounting frame (29); a first rack (7) is disposed on both sides of the outside of the frame (8) and above the support plate (4); a mounting shaft (31) is rotatably mounted on the top of the frame (8); a first gear (6) meshingly connected to the first rack (7) is fixedly sleeved at one end of the mounting shaft (31); a second gear (24) meshingly connected to the second rack (23) is fixedly sleeved at the other end; a circular plate (11) is disposed on one side of the barrel (2); a pin shaft on which a connecting rod (10) is mounted is eccentrically disposed at the top of the circular plate (11); the connecting rod (10) is movably connected to the hopper (18); and a transmission mechanism for driving the circular plate (11) to rotate is disposed between the circular plate (11) and the drive motor (2).

2. The sludge centrifugal dewatering device according to claim 1, characterized in that: A push block (26) is arranged at an interval inside the frame (8), a plurality of tapered rods (25) are arranged at the top and both sides of the push block (26), and the tapered rods (25) are arranged at intervals along the length direction of the push block (26), a sliding rod (38) is vertically arranged at both ends of the top of the push block (26), and a fixed pipe (35) connected to a nut (20) is arranged on the circumferential outer wall of the sliding rod (38), a lead screw (21) is fixedly connected between two mounting shafts (31) located on the same side, and the nut (20) is movably sleeved on the outer wall of the lead screw (21).

3. The sludge centrifugal dewatering device according to claim 2, characterized in that: A baffle (27) is fixedly mounted on the upper end of the sliding rod (38), and is located between the baffle (27) and the fixed pipe (35). A spring (22) is sleeved on the outer wall of the sliding rod (38).

4. The sludge centrifugal dewatering device according to claim 1, characterized in that: The transmission mechanism comprises: a first transmission shaft (13) located at one side of the barrel body (2) and arranged in a vertical manner, and a second transmission shaft (15) located at the bottom of the barrel body (2); the circular plate (11) is mounted on the upper end of the first transmission shaft (13); a first bevel gear (14) is fixedly sleeved on the lower end of the first transmission shaft (13) and one end of the second transmission shaft (15), and the two first bevel gears (14) are meshingly connected to each other; a second bevel gear (17) is sleeved on the other end of the second transmission shaft (15) and on the outer wall of the output shaft of the driving motor (2), and the two second bevel gears (17) are meshingly connected to each other.

5. The sludge centrifugal dewatering device according to claim 4, characterized in that: A fixing plate (12) is provided between the first transmission shaft (13), the second transmission shaft (15) and the outer wall of the barrel body (2), and the first transmission shaft (13) and the second transmission shaft (15) are rotatably connected to the fixing plate (12) via bearings.

6. The sludge centrifugal dewatering device according to claim 1, characterized in that: A fixed block (9) is provided at one end of the hopper (18), and the connecting rod (10) is movably connected to the fixed block (9) via a pin.

7. The sludge centrifugal dewatering device according to claim 1, characterized in that: A fixed sliding block (37) is provided on both sides of the hopper (18), and a slide rail (5) for slidingly mounting the fixed sliding block (37) is provided between the hopper (18) and the support plate (4).

8. The sludge centrifugal dewatering device according to claim 1, characterized in that: The first rack (7) is fixedly mounted on the top of the slide rail (5) via a connecting block (39).

9. The sludge centrifugal dewatering device according to claim 1, characterized in that: A long block (28) with a dovetail groove (33) is fixedly mounted inside the frame (8) on one side relative to the second rack (23); the second rack (23) is slidably connected to the long block (28) via a dovetail block (32).

10. The sludge centrifugal dewatering device according to claim 1, characterized in that: A water outlet pipe (36) is provided on the lower side wall of the barrel body (2).

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