A centrifugal extractor filter cloth quick mounting device

Abstract

The utility model relates to centrifugal spin-drying technical field and disclose a kind of centrifugal spin-drying machine filter cloth quick installation device, including base, the upper surface of base is fixedly installed with mounting seat, the upper end of mounting seat is fixedly installed with spin-drying barrel, the inner wall of spin-drying barrel is rotatably installed with drum, auxiliary mechanism is set on base, auxiliary mechanism includes two pressing plates and auxiliary mounting plate, two pressing plates are slidably installed in the upper end of drum, two pressing plates are mirror image installation, the upper surface of spin-drying barrel is circular array fixedly installed with three electric push rods, auxiliary mounting plate is moved downward by electric push rod, provide two pressing plates with down pressure, ensure that filter cloth has been accurately positioned and pre-presses before bolt fixed, improve filter cloth installation efficiency and installation effect, the setting of pressing plate makes it necessary to completely remove all bolts before filter cloth can be removed, avoid tearing damage when filter cloth is forcibly removed due to bolt missing disassembly, guarantee filter cloth reusability.

Description

Technical Field

[0001] This utility model relates to the field of centrifugal drying technology, specifically a quick installation device for filter cloth in a centrifugal dryer. Background Technology

[0002] Waste paper recycling is an environmentally friendly process that converts waste paper into recycled pulp. Its core principle is to remove impurities and restore the fiber's usability through physical and chemical methods. The process mainly includes: sorting and classifying waste paper to remove plastics, metals, and other impurities; pulping the paper into fibers in water; screening and purifying to remove inks, adhesives, and other impurities; deinking and washing followed by centrifugal drying to reduce moisture content; bleaching and beating to adjust fiber characteristics; and finally, papermaking to produce recycled paper. This process reduces wood consumption and papermaking pollution, saving 3 cubic meters of wood per ton of waste paper. It is widely used in packaging paper, sanitary napkins, and other industries. Paper production and other industries are important practices of circular economy and resource conservation. Centrifugal dryers are devices that use centrifugal force to dehydrate materials. They are widely used in industrial, commercial and laboratory fields. Their core working principle is that the motor drives the drum to rotate at high speed, so that the water in the material is separated from the material under the action of centrifugal force and discharged through small holes in the drum wall. The equipment is mainly composed of a stainless steel drum, drive unit, support and shock absorption system, control system and shell. When selecting a model, capacity, speed and material and degree of automation should be considered. Daily cleaning of debris, inspection of belts and bolts, and regular lubrication are required to ensure efficient and stable operation of the equipment.

[0003] Currently, when using centrifugal dryers to recycle waste paper, the pulp formed after the waste paper is shredded and deinked is a suspension system composed of fine fibers, residual impurities, and a large amount of water. The fiber diameter is usually in the micrometer range, and the texture is soft and easily lost with the water flow. The drainage holes on the drum wall are generally larger than the fiber diameter. If the paper is directly spun dry, a large amount of pulp fibers will be discharged through the holes with the water, resulting in waste of raw materials. Usually, a filter cloth needs to be installed inside the drum. After a period of use, the filter cloth needs to be removed and cleaned. The filter cloth is usually directly fixed inside the drum with a ring of bolts. When the filter cloth needs to be removed, the staff needs to remove all the bolts. However, this can lead to situations where the staff misses some bolts and removes the filter cloth directly without noticing, which may damage the filter cloth, affect its reuse, and increase recycling costs. Utility Model Content

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a quick installation device for filter cloth in a centrifugal dryer. This solves the problem that filter cloth is usually fixed directly inside the drum by a ring of bolts. When the filter cloth needs to be disassembled, the operator needs to remove all the bolts. However, this can lead to situations where the operator misses some bolts and removes the filter cloth directly without noticing, which may damage the filter cloth, affect its reuse, and increase recycling costs.

[0005] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a quick installation device for filter cloth of a centrifugal dryer, including a base, an installation seat fixedly installed on the upper surface of the base, a spin-drying drum fixedly installed at the upper end of the installation seat, and a rotating drum rotatably installed on the inner wall of the spin-drying drum; The auxiliary mechanism is mounted on the base and includes two pressure plates and an auxiliary mounting plate. The two pressure plates are slidably mounted on the upper end of the drum, and are installed in a front-to-back mirror image. Three electric push rods are fixedly mounted in a circular array on the upper surface of the spin-drying drum. Protective boxes are fixedly mounted on the upper surface of the spin-drying drum at the positions corresponding to the three electric push rods. The three electric push rods are located inside the three protective boxes, and the telescopic ends of the three electric push rods slide through into the interior of the spin-drying drum. The auxiliary mounting plate is fixedly mounted on the telescopic ends of the three electric push rods and is located above the two pressure plates.

[0006] Preferably, the auxiliary mechanism further includes a rubber pad, which is fixedly installed on the lower surface of the auxiliary mounting plate.

[0007] Preferably, two first mounting grooves are formed on the inner arc surface of each of the two pressure plates, and all four first mounting grooves extend into the interior of the drum, with bolts threaded into the interior of each of the four first mounting grooves.

[0008] Preferably, the three protective boxes are all open on the side surface away from the center point of the spin dryer, and the upper surface of each of the three protective boxes is provided with a sliding groove. The lower end of each of the three sliding grooves extends into the interior of the three protective boxes, and an L-shaped plate is slidably inserted into the interior of each of the three sliding grooves.

[0009] Preferably, the upper surface of each of the three L-shaped plates is provided with a second mounting groove, the lower end of each of the three second mounting grooves extends into the interior of the three protective boxes, and a screw is threaded into the interior of each of the three second mounting grooves.

[0010] Preferably, a throttle handle is fixedly connected to the upper end of each of the three screws.

[0011] (III) Beneficial Effects Compared with the prior art, this utility model provides a quick installation device for filter cloth in a centrifugal dryer, which has the following advantages: 1. The centrifugal dryer filter cloth quick installation device uses an electric push rod to move the auxiliary installation plate downwards, providing downward pressure on the two pressure plates. This ensures that the filter cloth is accurately positioned and pre-pressed before the bolts are fixed, improving the filter cloth installation efficiency and effect. The pressure plate design requires that all bolts be completely removed before the filter cloth can be removed, avoiding tearing damage when the filter cloth is forcibly removed due to missing bolts, thus ensuring the reusability of the filter cloth. Attached Figure Description

[0012] Figure 1 This is a top view schematic diagram of the overall structure of the centrifugal dryer filter cloth quick installation device of this utility model; Figure 2 This is a front view of the internal cross-section structure of the quick installation device for filter cloth in a centrifugal dryer according to this utility model; Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This is a top view of the internal cross-section of the pressure plate of this utility model; Figure 5 This is a side view of the internal sectional structure of the protective box of this utility model.

[0013] In the diagram: 1. Base; 2. Mounting seat; 3. Spin-drying drum; 4. Drum; 5. Pressure plate; 6. Auxiliary mounting plate; 7. Electric push rod; 8. Protective box; 9. Rubber pad; 10. First mounting slot; 11. Bolt; 12. Turn handle; 13. Sliding groove; 14. L-shaped plate; 15. Second mounting slot; 16. Screw. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-5 This utility model provides a new technical solution: a quick installation device for filter cloth of a centrifugal dryer, including a base 1, an installation seat 2 fixedly installed on the upper surface of the base 1, a spin-drying bucket 3 fixedly installed on the upper end of the installation seat 2, and a rotating drum 4 rotatably installed on the inner wall of the spin-drying bucket 3. The auxiliary mechanism is mounted on the base 1 and includes two pressure plates 5 and an auxiliary mounting plate 6. The two pressure plates 5 are slidably mounted on the upper end of the drum 4 and are installed in a front-to-back mirror image. Three electric push rods 7 are fixedly mounted in a circular array on the upper surface of the spin-drying drum 3. Protective boxes 8 are fixedly mounted on the upper surface of the spin-drying drum 3 at the positions corresponding to the three electric push rods 7. The three electric push rods 7 are located inside the three protective boxes 8 respectively. The telescopic ends of the three electric push rods 7 slide through into the interior of the spin-drying drum 3. The auxiliary mounting plate 6 is fixedly mounted on the telescopic ends of the three electric push rods 7 and is located above the two pressure plates 5.

[0016] Furthermore, the auxiliary mechanism also includes a rubber pad 9, which is fixedly installed on the lower surface of the auxiliary mounting plate 6.

[0017] Furthermore, the electric push rod 7 drives the auxiliary mounting plate 6 to move downward, providing downward pressure on the two pressure plates 5. This ensures that the filter cloth is accurately positioned and pre-pressed before the bolts are fixed, improving the efficiency and effect of filter cloth installation. The pressure plate 5 is designed so that all bolts must be completely removed before the filter cloth can be removed, avoiding tearing damage when the filter cloth is forcibly removed due to missing bolts, thus ensuring the reusability of the filter cloth.

[0018] Furthermore, two first mounting grooves 10 are opened on the inner arc surface of the two pressure plates 5, and all four first mounting grooves 10 extend into the interior of the drum 4. Bolts 11 are threaded into the interior of the four first mounting grooves 10.

[0019] Furthermore, the surfaces of the three protective boxes 8 away from the center point of the spin dryer 3 are all open, and the upper surfaces of the three protective boxes 8 are all provided with sliding grooves 13. The lower ends of the three sliding grooves 13 extend into the interior of the three protective boxes 8, and L-shaped plates 14 are slidably inserted into the interior of the three sliding grooves 13.

[0020] Furthermore, each of the three L-shaped plates 14 has a second mounting groove 15 on its upper surface. The lower ends of the three second mounting grooves 15 extend into the interior of the three protective boxes 8, and each of the three second mounting grooves 15 has a screw 16 threaded into its interior.

[0021] Furthermore, a throttle 12 is fixedly connected to the upper end of each of the three screws 16.

[0022] Furthermore, the outer diameter of the auxiliary mounting plate 6 is smaller than the inner diameter of the spin dryer 3, and there is a gap between the lower surface of the auxiliary mounting plate 6 and the upper surface of the two pressure plates 5.

[0023] Furthermore, the two pressure plates 5 are arc-shaped plates, and the two pressure plates 5 can form a complete circle. Two arc-shaped grooves are opened on the lower surface of the two pressure plates 5. The arc-shaped grooves on the two pressure plates 5 cooperate with the rotating drum 4 to fix the filter cloth.

[0024] Furthermore, the extension and retraction directions of the three electric push rods 7 are all perpendicular to the upper surface of the spin dryer 3, and the extension and retraction strokes of the three electric push rods 7 are the same.

[0025] Furthermore, the lower surface of the rubber pad 9 has a flat structure.

[0026] Furthermore, during the installation of the filter cloth, the workers first lay the filter cloth on the inner wall of the drum 4, ensuring that the edge of the filter cloth is flat and covers the upper edge of the drum. Two arc-shaped pressure plates 5 are then placed in a mirror image on the upper end of the drum 4, so that the arc-shaped groove on the lower surface of the pressure plate 5 fits against the outer wall of the drum 4, initially clamping the edge of the filter cloth. The three electric push rods 7 are then activated, and their telescopic ends move the auxiliary mounting plate 6 downwards until the rubber pad 9 on the lower surface of the auxiliary mounting plate 6 contacts the upper surface of the two pressure plates 5 and applies pressure, tightly pressing the edge of the filter cloth between the arc-shaped groove of the pressure plate 5 and the drum 4. Maintaining the downward pressure of the auxiliary mounting plate 6, bolts 11 are screwed into the drum 4 through the first mounting groove 10, securing the two... The pressure plate 5 is fixed on the drum 4, completing the mechanical fixation of the filter cloth. The telescopic end of the electric push rod 7 is retracted, and the auxiliary mounting plate 6 is reset to the initial position, completing the installation process. When installing the two pressure plates 5, they need to be installed separately. Install one pressure plate 5 first and then install the other. When it is necessary to remove the filter cloth, the bolts 11 in the first mounting groove 10 need to be unscrewed one by one. After ensuring that all bolts are completely removed, the electric push rod 7 is started again, and the auxiliary mounting plate 6 slightly presses down on the pressure plate 5, causing a slight loosening between the pressure plate 5 and the drum 4. At this time, the staff needs to remove the two pressure plates 5 from the drum before the filter cloth can be removed to prevent the bolts from being missed and causing damage when the filter cloth is removed.

[0027] Structural Description: Base 1: Serves as the foundation of the device. Mounting seat 2 is fixed on the upper surface to provide stable support for the entire equipment, ensuring the overall stability of the device during the spin-drying and filter cloth installation process, and avoiding shaking that could affect operational accuracy; Mounting base 2: Connects base 1 and spin dryer 3, providing support and raising the height of spin dryer 3 to facilitate the installation of drum 4 and subsequent filter cloth loading and unloading operations, thereby enhancing structural stability. Spin-drying drum 3: The inner wall is equipped with a rotating drum 4, which provides a closed space for filter cloth installation and spin-drying operations. The upper surface is fixed with an electric push rod 7 and a protective box 8, which serve as the mounting carrier for each component. Drum 4: As the core component for filter cloth laying, the inner wall supports the filter cloth and achieves the spin-drying function by rotating. It cooperates with the arc groove of the pressure plate 5 to fix the edge of the filter cloth and ensure the stability of the filter cloth during dehydration. Pressure plate 5: There are two in total. The arc-shaped structure can form a complete circle. The arc-shaped groove on the lower surface cooperates with the drum 4 to clamp the edge of the filter cloth. It is fixed to the drum 4 by bolts 11 to achieve mechanical fixation of the filter cloth and prevent displacement. Auxiliary mounting plate 6: Fixed to the telescopic end of electric push rod 7, located above pressure plate 5. Under the drive of electric push rod, it presses down on pressure plate 5, and the edge of auxiliary filter cloth is precisely embedded in arc groove to ensure firm installation; Electric push rod 7: There are three in total. They are fixed in a ring array on the spin dryer 3. The telescopic end is connected to the auxiliary mounting plate 6, which provides vertical downward driving force to realize the lifting and lowering of the auxiliary mounting plate, replacing manual pressing. Protective box 8: There are three in total, which cover the electric push rod 7. One side is open for easy maintenance. The upper surface sliding groove 13 is for the L-shaped plate 14 to be installed, which protects the electric push rod 7 and prevents debris from interfering with its operation. Rubber pad 9: Fixed to the lower surface of auxiliary mounting plate 6, it is soft and has a flat lower surface. It cushions the impact when pressed down and avoids hard contact between the auxiliary mounting plate and the pressure plate 5, which would cause wear to the parts. First mounting slot 10: There are four in total. They are opened on the inner arc surface of the pressure plate 5 and extend to the drum 4, providing an installation channel for the bolts 11. The bolts 11 are used to firmly fix the pressure plate 5 to the drum 4 through threaded engagement. Bolt 11: There are four bolts in total. They are threaded into the first mounting groove 10 and connect the pressure plate 5 and the drum 4. By tightening, a clamping force is applied to stably clamp the edge of the filter cloth between the pressure plate 5 and the drum 4. Turn handle 12: There are three in total, fixed to the upper end of screw 16, increasing the point of force application for the hand, making it easier for the operator to turn screw 16. By rotating, the screw is raised and lowered, thereby adjusting the position of L-shaped plate 14. Sliding groove 13: There are three in total, which are opened on the upper surface of the protective box 8 and penetrate through the interior, providing a guide track for the L-shaped plate 14 to slide up and down, restricting the movement direction of the L-shaped plate 14 and ensuring its stable sliding; L-shaped plate 14: There are three in total. They are slidably inserted into the sliding groove 13 and can be raised and lowered under the drive of screw 16. When closed, they cover the opening of the protective box 8 and protect the internal electric push rod 7. When opened, they are easy to maintain. The second mounting slot 15: There are three in total. They are opened on the upper surface of the L-shaped plate 14 and extend through the protective box 8. They provide threaded mounting holes for the screw 16. The screw 16 drives the L-shaped plate 14 to move up and down through the threaded engagement. Screw 16: There are three screws in total. They are threaded into the second mounting slot 15 and connected to the handle 12 at the upper end. When rotated, the screw drives the L-shaped plate 14 to rise and fall, thereby controlling the opening and closing of the protective box 8.

[0028] 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 quick installation device for filter cloth in a centrifugal dryer, comprising a base (1), an mounting seat (2) fixedly installed on the upper surface of the base (1), and a spin-drying drum (3) fixedly installed on the upper end of the mounting seat (2), characterized in that: A rotating drum (4) is rotatably installed on the inner wall of the spin dryer (3); The auxiliary mechanism is set on the base (1). The auxiliary mechanism includes two pressure plates (5) and an auxiliary mounting plate (6). The two pressure plates (5) are slidably mounted on the upper end of the drum (4). The two pressure plates (5) are installed in a front-to-back mirror image. Three electric push rods (7) are fixedly mounted in a ring array on the upper surface of the spin dryer (3). Protective boxes (8) are fixedly mounted on the upper surface of the spin dryer (3) corresponding to the positions of the three electric push rods (7). The three electric push rods (7) are located inside the three protective boxes (8). The telescopic ends of the three electric push rods (7) slide through into the interior of the spin dryer (3). The auxiliary mounting plate (6) is fixedly mounted on the telescopic ends of the three electric push rods (7). The auxiliary mounting plate (6) is located above the two pressure plates (5).

2. The quick installation device for filter cloth in a centrifugal dryer according to claim 1, characterized in that: The auxiliary mechanism also includes a rubber pad (9), which is fixedly installed on the lower surface of the auxiliary mounting plate (6).

3. The quick installation device for filter cloth in a centrifugal dryer according to claim 1, characterized in that: Two first mounting grooves (10) are opened on the inner arc surface of the two pressure plates (5). All four first mounting grooves (10) extend into the interior of the drum (4). Bolts (11) are threaded into the interior of the four first mounting grooves (10).

4. The quick installation device for filter cloth in a centrifugal dryer according to claim 1, characterized in that: The three protective boxes (8) are all open on the side surface away from the center point of the spin dryer (3). The upper surface of each of the three protective boxes (8) is provided with a sliding groove (13). The lower end of each of the three sliding grooves (13) extends into the interior of the three protective boxes (8). An L-shaped plate (14) is slidably inserted into the interior of each of the three sliding grooves (13).

5. The quick installation device for filter cloth in a centrifugal dryer according to claim 4, characterized in that: The upper surfaces of the three L-shaped plates (14) are provided with second mounting grooves (15), the lower ends of the three second mounting grooves (15) respectively penetrate into the interior of the three protective boxes (8), and screws (16) are threaded into the interior of the three second mounting grooves (15).

6. The quick installation device for filter cloth in a centrifugal dryer according to claim 5, characterized in that: The upper ends of the three screws (16) are all fixedly connected to a throttle (12).

7. The quick installation device for filter cloth in a centrifugal dryer according to claim 1, characterized in that: The outer diameter of the auxiliary mounting plate (6) is smaller than the inner diameter of the spin dryer (3), and there is a gap between the lower surface of the auxiliary mounting plate (6) and the upper surface of the two pressure plates (5).

8. The quick installation device for filter cloth in a centrifugal dryer according to claim 1, characterized in that: The two pressure plates (5) are arc-shaped plates, and the two pressure plates (5) can form a complete circle. Two arc-shaped grooves are opened on the lower surface of the two pressure plates (5). The arc-shaped grooves on the two pressure plates (5) cooperate with the rotating drum (4) to fix the filter cloth.

9. A quick installation device for filter cloth in a centrifugal dryer according to claim 1, characterized in that: The extension and retraction directions of the three electric push rods (7) are all perpendicular to the upper surface of the spin dryer (3), and the extension and retraction strokes of the three electric push rods (7) are the same.

10. A quick installation device for filter cloth in a centrifugal dryer according to claim 1, characterized in that: The lower surface of the rubber pad (9) has a flat structure.

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