A papermaking sludge treatment device of a plate-and-frame filter press

Abstract

The utility model relates to papermaking sludge treatment technical field especially relates to a papermaking sludge treatment device of plate and frame filter press, the papermaking sludge treatment device of plate and frame filter press includes: bottom plate, rotating column, tilt filter plate, drive assembly, the top of bottom plate installs the conveying pipe, the left -hand end fixedly connected with the discharge pipe of conveying pipe, the top of conveying pipe fixedly connected with the feeding pipe, the top of feeding pipe fixedly connected with the hopper, the right -hand end fixedly connected with the accommodating bucket of bottom plate, the inside installation of accommodating bucket has the speed reducer, the output fixedly connected with rotating column of speed reducer, the outside fixedly connected with the auger blade of rotating column, the one end of rotating column away from speed reducer deviates the fixed connection of the shaft core department screw rod, the utility model can effectively intercept the metal scrap, big fibre piece etc. Impurity in papermaking sludge, avoid its into subsequent plate and frame filter press, prevent the sludge and accumulate and jam on filter plate, ensure that the filtration and the feeding process are smooth, improve the stability and continuity of feeding.

Description

Technical Field

[0001] This utility model relates to the field of papermaking sludge treatment technology, and in particular to a papermaking sludge treatment device for a plate and frame filter press. Background Technology

[0002] Plate and frame filter presses are commonly used solid-liquid separation equipment in papermaking sludge treatment. They utilize the squeezing action between plates and frames to allow water in the sludge to seep through the filter cloth, achieving sludge dewatering and drying. The feeding device is a crucial component, as it is responsible for the stable and controllable delivery of papermaking sludge to the filter chambers between the plates and frames. Only with stable feeding pressure and a continuous feeding process can the plate and frame filter press efficiently complete the squeezing and dewatering process, ensuring the treatment effect such as filter cake size. Unstable feeding will affect the dewatering efficiency and sludge treatment quality.

[0003] In most papermaking sludge treatments, screw-type high and low pressure feed pumps are used to transport the sludge containing moisture to a plate and frame filter press. The plate and frame filter press then separates the moisture from the sludge to reduce its water content. However, when the sludge containing moisture is fed into the screw-type high and low pressure feed pump, impurities such as metal shavings and large fiber pieces may enter the plate and frame, tearing the filter cloth and preventing the effective retention of moisture. This moisture may even become stuck on the sealing surface between the plates and frames, causing leakage during filtration. As a result, the overall dewatering effect of the machine is greatly reduced, and the moisture content of the filter cake exceeds the standard.

[0004] Therefore, it is necessary to provide a new feeding device for papermaking sludge treatment equipment to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a papermaking sludge treatment device for a plate and frame filter press.

[0006] This utility model provides a papermaking sludge treatment device for a plate and frame filter press, comprising: a base plate, a rotating column, an inclined filter plate, and a drive assembly. A conveying pipe is installed at the top of the base plate, a discharge pipe is fixedly connected to the left end of the conveying pipe, a feeding pipe is fixedly connected to the top end of the conveying pipe, a hopper is fixedly connected to the top end of the feeding pipe, a receiving tank is fixedly connected to the right end of the base plate, a reducer is installed inside the receiving tank, a rotating column is fixedly connected to the output end of the reducer, an auger blade is fixedly connected to the outside of the rotating column, and a screw is fixedly connected to the end of the rotating column away from the reducer and off-axis. A conveying chamber is opened inside the base plate, an inclined filter plate is detachably connected to the bottom of the inner wall of the hopper, a transmission rod is rotatably connected to the inner wall of the feeding pipe, and two cams are fixedly connected to the outside of the transmission rod at the inner ring of the feeding pipe. A drive assembly is installed on the right side of the top of the base plate.

[0007] Preferably, the drive assembly includes a motor, the bottom end of which is fixedly connected to the top right side of the base plate, a drive wheel is fixedly connected to the drive end of the motor, a driven wheel is rotatably connected to the top right side of the container, and pulleys are sleeved on the outside of the drive wheel and the driven wheel.

[0008] Preferably, the bottom of the container is fixedly connected to the top of the base plate.

[0009] Preferably, no filter holes are opened at the bottom of the inclined filter plate, and the highest point of the two cams is in contact with the bottom of the inclined filter plate when they rotate.

[0010] Preferably, the side of the drive wheel furthest from the motor is rotatably connected to the bottom right side of the container.

[0011] Preferably, the driven wheel is fixedly connected to the right end of the transmission rod at the axis near the receiving barrel, and the outer side of the right end of the transmission rod is rotatably connected to the inner wall of the top of the receiving barrel.

[0012] Compared with related technologies, the papermaking sludge treatment device for a plate and frame filter press provided by this utility model has the following beneficial effects: This invention effectively intercepts impurities such as metal scraps and large fiber blocks in papermaking sludge by setting an inclined filter plate inside the hopper, preventing them from entering the subsequent plate and frame filter press. This solves the problems of impurities tearing the filter cloth, causing leakage, and excessive moisture content in the filter cake in related technologies, ensuring the normal operation and dewatering effect of the plate and frame filter press. At the same time, the transmission rod drives the cam to rotate continuously, constantly squeezing the inclined filter plate to make it vibrate, which can prevent sludge from accumulating and clogging on the filter plate, ensuring smooth filtration and feeding processes, and improving the stability and continuity of feeding.

[0013] This invention utilizes a drive assembly consisting of a motor, a drive wheel, a driven wheel, and a pulley to achieve efficient power transmission. This drives the transmission rod and cam to rotate, and the power is adjusted by a reducer to drive the rotating column, auger blades, and screw. The spiral propulsion motion of the auger blades within the conveying pipe, combined with the rotation of the screw within the conveying chamber, stably and continuously pushes the filtered sludge and water to the discharge pipe, and then conveys it to the plate and frame filter press. This ensures stable feed pressure and continuous feeding, which helps the plate and frame filter press to efficiently complete the extrusion dewatering, improving the sludge treatment quality and dewatering efficiency. Attached Figure Description

[0014] Figure 1 A schematic diagram of the structure of a papermaking sludge treatment device for a plate and frame filter press provided by this utility model; Figure 2 for Figure 1 The diagram shows the structure of the discharge pipe; Figure 3 for Figure 1 The diagram shows the structure of the delivery pipe; Figure 4 for Figure 3 Enlarged view of point A in the image.

[0015] The following are the labels in the diagram: 1. Base plate; 2. Conveying pipe; 3. Discharge pipe; 4. Feeding pipe; 5. Hopper; 6. Container tank; 7. Reducer; 8. Rotating column; 9. Screw blade; 10. Screw; 11. Conveying chamber; 12. Inclined filter plate; 13. Transmission rod; 14. Cam; 15. Motor; 16. Drive wheel; 17. Driven wheel; 18. Pulley. Detailed Implementation

[0016] 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 the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0017] The specific implementation of this utility model will be described in detail below with reference to specific embodiments. Please see Figures 1 to 4 A papermaking sludge treatment device for a plate and frame filter press includes: a base plate 1, which serves as the basic supporting structure of the entire device; a conveying pipe 2 installed at the top of the base plate 1, which is tubular and used to convey papermaking sludge; a discharge pipe 3 fixedly connected to the left end, which serves as the sludge discharge channel; a feeding pipe 4 fixedly connected to the top of the conveying pipe 2, which serves as a transition between the hopper 5 and the conveying pipe 2, and is a pipe with a smaller top and larger bottom, facilitating the smooth flow of sludge into the conveying pipe 2; a hopper 5 fixedly connected to the top of the feeding pipe 4, which is an open bucket-shaped structure, facilitating the feeding of papermaking sludge by operators or feeding equipment; a receiving tank 6 fixedly connected to the right end of the base plate 1, whose bottom end is tightly fitted and fixedly connected to the top end of the base plate 1, providing a closed and stable space for the internally installed components; and a reducer 7 installed inside the receiving tank 6, which can reduce the input power and increase torque to meet the device's power requirements for conveying.

[0018] A rotating column 8 is fixedly connected to the output end of the reducer 7 via a coupling. An auger blade 9 is fixedly connected to the outside of the rotating column 8. The auger blade 9 is spirally distributed on the surface of the rotating column 8. When the rotating column 8 rotates, the auger blade 9 can push the sludge in the conveying pipe 2 forward by means of the spiral propulsion principle. At the end of the rotating column 8 away from the reducer 7, a screw 10 is fixedly connected at a position off the axis. The screw 10 is a column with threaded teeth. A conveying chamber 11 is opened inside the base plate 1. The conveying chamber 11 is a cavity structure adapted to the rotation and pushing function of the screw 10. The outside of the screw 10 is movably fitted into the inner wall of the conveying chamber 11. When the screw 10 rotates, it can further assist the conveying of sludge and water to the discharge pipe 3 within the conveying chamber 11.

[0019] An inclined filter plate 12 is detachably connected to the bottom of the inner wall of the hopper 5 via bolts. The inclined filter plate 12 is arranged at a certain inclination angle, and no filter holes are opened at the bottom of the inclined plate to facilitate subsequent cleaning. At the same time, sludge and water that meet the filtration requirements fall through the filter holes. A transmission rod 13 is rotatably connected to the inner wall of the feed pipe 4. The transmission rod 13 passes horizontally through the inner ring of the feed pipe 4, and two cams 14 are fixedly connected to the outside of the inner ring of the feed pipe 4. The two cams 14 are symmetrically distributed. When the transmission rod 13 rotates, the highest point of the two cams 14 will periodically contact the bottom of the inclined filter plate 12 during the rotation process, forming a squeezing and knocking action on the inclined filter plate 12.

[0020] The drive assembly is mounted on the top right side of the base plate 1. The drive assembly includes a motor 15, which serves as the power output source. The bottom end of the motor 15 is fixedly connected to the top right side of the base plate 1 by bolts to ensure the stability of the motor 15 during operation. The drive end of the motor 15 is fixedly connected to a drive wheel 16. The side of the drive wheel 16 away from the motor 15 is rotatably connected to the bottom right side of the container 6, allowing it to rotate relative to the container 6. The top right side of the container 6 is rotatably connected to a driven wheel 17. The shaft of the driven wheel 17 near the container 6 is fixedly connected to the right end of the transmission rod 13, so that the rotation of the driven wheel 17 can directly drive the transmission rod 13 to rotate. The outer right end of the transmission rod 13 is rotatably connected to the inner wall of the top of the container 6 to ensure the smooth rotation of the transmission rod 13. A pulley 18 is sleeved on the outside of the drive wheel 16 and the driven wheel 17. The pulley 18 is a ring transmission belt that can transmit the rotational power of the drive wheel 16 to the driven wheel 17, realizing long-distance power transmission and conversion.

[0021] The working principle of the papermaking sludge treatment device for a plate and frame filter press provided by this utility model is as follows: When the drive assembly is started, the motor 15 starts to run. The motor 15 serves as the power source, and its drive end drives the drive wheel 16 to rotate. Since the drive wheel 16 and the driven wheel 17 are fitted with a pulley 18, the rotation of the drive wheel 16 causes the driven wheel 17 to rotate through the transmission action of the pulley 18. The driven wheel 17 is fixedly connected to the right end of the transmission rod 13 at the axis near the receiving tank 6, thereby driving the transmission rod 13 to rotate on the inner wall of the top of the receiving tank 6 and the inner wall of the feeding pipe 4. The two cams 14 fixedly connected to the inner ring of the feeding pipe 4 rotate with the transmission rod 13. When the cams 14 rotate, their highest point will contact and press the bottom end of the inclined filter plate 12, which is detachably connected to the bottom end of the inner wall of the hopper 5, and continuously apply force to the inclined filter plate 12. Simultaneously, the power generated by the motor 15 is transmitted and regulated through the reducer 7. The output end of the reducer 7 is fixedly connected to the rotating column 8. Under the power transmission, the rotating column 8 begins to rotate. The auger blade 9, fixedly connected to the outside of the rotating column 8, performs a spiral propulsion motion inside the conveying pipe 2 as the rotating column 8 rotates, feeding papermaking sludge into the hopper 5. After the sludge enters the hopper 5, it falls onto the inclined filter plate 12. The inclined filter plate 12 performs preliminary filtration of the sludge. Because the bottom of the inclined filter plate 12 does not have filter holes, it can intercept impurities such as metal scraps and large fiber blocks, allowing sludge and water that meet the particle size requirements to pass through the filter holes and enter the feed pipe 4 and the conveying pipe 2 downwards. During the process, the transmission rod 13 drives the cam 14 to rotate continuously, and the cam 14 continuously squeezes the inclined filter plate 12. 2. The inclined filter plate 12 vibrates to prevent sludge from accumulating and clogging on the filter plate, ensuring smooth filtration and feeding. The sludge and water entering the conveying pipe 2 are gradually conveyed forward by the spiral propulsion of the auger blade 9. The screw 10, which is fixedly connected at the end of the rotating column 8 away from the reducer 7 and off the axis, also rotates with the rotating column 8. The screw 10 moves externally on the inner wall of the conveying chamber 11 opened inside the bottom plate 1, further assisting the pushing of sludge and water in the conveying pipe 2 during rotation, allowing the sludge and water to move towards the discharge pipe 3 fixedly connected to the left end of the conveying pipe 2. Finally, through the coordinated conveying of the auger blade 9 and the screw 10, the sludge and water reach the discharge pipe 3 and are transported to subsequent plate and frame filter presses and other equipment through the discharge pipe 3, completing the feeding process.

[0022] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A papermaking sludge treatment device for a plate-and-frame filter press, characterized by include: The bottom plate (1) is equipped with a conveying pipe (2) at the top of the bottom plate (1), a discharge pipe (3) is fixedly connected to the left end of the conveying pipe (2), a feeding pipe (4) is fixedly connected to the top end of the conveying pipe (2), a hopper (5) is fixedly connected to the top end of the feeding pipe (4), and a receiving bucket (6) is fixedly connected to the right end of the bottom plate (1). A reducer (7) is installed inside the receiving bucket (6). Rotating column (8), the output end of reducer (7) is fixedly connected to rotating column (8), auger blade (9) is fixedly connected to the outside of rotating column (8), screw (10) is fixedly connected to the end of rotating column (8) away from reducer (7) off the axis, and conveying chamber (11) is opened inside the base plate (1). Inclined filter plate (12), the bottom of the inner wall of the hopper (5) is detachably connected to the inclined filter plate (12), the inner wall of the feed pipe (4) is rotatably connected to the transmission rod (13), and the transmission rod (13) is fixedly connected to two cams (14) at the outer side of the inner ring of the feed pipe (4). The drive assembly is installed on the top right side of the base plate (1).

2. A paper mill sludge treatment apparatus for a plate and frame filter press according to claim 1, characterized in that The drive assembly includes a motor (15), the bottom end of the motor (15) is fixedly connected to the top right side of the base plate (1), the drive end of the motor (15) is fixedly connected to a drive wheel (16), the top right side of the container (6) is rotatably connected to a driven wheel (17), and a pulley (18) is sleeved on the outside of the drive wheel (16) and the driven wheel (17).

3. The papermaking sludge treatment device for a plate and frame filter press according to claim 1, characterized in that, The bottom of the container (6) is fixedly connected to the top of the base plate (1).

4. The papermaking sludge treatment device for a plate and frame filter press according to claim 1, characterized in that, The inclined filter plate (12) has no filter holes at its bottom. When the two cams (14) rotate, their highest points are in contact with the bottom of the inclined filter plate (12).

5. A papermaking sludge treatment device for a plate and frame filter press according to claim 2, characterized in that, The side of the drive wheel (16) away from the motor (15) is rotatably connected to the bottom right side of the container (6).

6. A papermaking sludge treatment device for a plate and frame filter press according to claim 2, characterized in that, The driven wheel (17) is fixedly connected to the right end of the transmission rod (13) at the axis near the container (6), and the outer side of the right end of the transmission rod (13) is rotatably connected to the inner wall of the top of the container (6).

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