Energy-saving rubber processing crushing and screening device

Abstract

The application relates to the technical field of rubber processing, and discloses an energy-saving crushing and screening device for rubber processing, which aims to solve the problem that rubber materials are adhered to impurities, thereby affecting the screening quality of the rubber materials. The device is provided with a machine body, a net-shaped pipeline and a nozzle. After waste rubber products are crushed into rubber materials, the rubber materials directly fall into water below. The water can quickly penetrate into the micropores, gaps and attached impurities on the surface of the rubber materials, so that the impurities such as soil, sand and dust are softened and loosened. Meanwhile, the impact of the falling rubber materials, water surface fluctuation and water flow disturbance can produce a scouring effect on the surface of the rubber materials, so that the softened impurities are separated from the surface of the rubber materials, thereby effectively improving the cleanliness of the rubber materials and the screening quality of the rubber materials.

Description

Technical Field

[0001] This application relates to the field of rubber processing technology, and in particular to an energy-saving crushing and screening device for rubber processing. Background Technology

[0002] Waste rubber products, such as waste tires, hoses, belts, and seals, usually need to undergo crushing and screening processes during recycling to obtain rubber materials with qualified particle size and high cleanliness, which can then be used to prepare reclaimed rubber, rubber powder, or other recycled materials.

[0003] Existing rubber processing crushing and screening devices typically include a crushing mechanism and a screening mechanism. The crushing mechanism usually adopts a double-roll crushing structure, and the screening mechanism usually adopts a vibrating screen. During operation, the crushing rollers first crush the waste rubber products into block or granular rubber materials, and then the screening mechanism separates the rubber materials from impurities. Through the above actions, the crushing and screening operation of waste rubber is realized.

[0004] However, during the crushing process, impurities (soil, sand, dust, metal shavings, etc.) often adhere to the surface and internal gaps of waste rubber products. The heat and mechanical squeezing action generated by the crushing rollers can easily force the impurities into the micropores and cracks on the rubber surface, or even stick to the rubber surface. When the rubber material leaves the crushing mechanism, the surface impurities dry and harden, making the separation effect of the screening equipment on the rubber material and impurities poor, thus affecting the screening quality of the rubber material. Summary of the Invention

[0005] This application proposes an energy-saving crushing and screening device for rubber processing, which has the advantage of promoting the separation of impurities from rubber materials, thereby solving the problem of rubber materials and impurities sticking together, which affects the screening quality of rubber materials.

[0006] To achieve the above objectives, this application adopts the following technical solution: an energy-saving crushing and screening device for rubber processing, comprising: a machine body, wherein two crushing rollers are symmetrically arranged at the upper part of the inner cavity of the machine body, a crushing motor is fixedly installed on the outer wall of the machine body at a position corresponding to one end of the crushing rollers, the output shaft of the crushing motor is fixedly connected to the rotating shaft of the corresponding crushing roller, a mesh pipe is horizontally arranged at the lower part of the inner cavity of the machine body, and a water pump is fixedly installed on the outer wall of the machine body below the crushing motor, the water delivery end of the water pump being connected to the mesh pipe. The inlet end of the pipeline is connected, the inlet end of the water pump is connected to the external water conveying mechanism, and nozzles are fixedly connected at the upper intersection points of the mesh pipeline. The spraying end of the nozzles faces upward. A water pump is fixedly installed on the outer wall of the machine body between the water pump and the crushing motor. The inlet end of the water pump is connected to the inner cavity of the machine body, and the outlet end of the water pump is connected to the external water storage mechanism. The bottom wall of the inner cavity of the machine body is set at an inclined angle, and a drain valve is fixedly installed in the inner wall of the machine body at the lowest point of the inclined bottom wall.

[0007] Furthermore, the nozzles located at the edge of the mesh pipe are set at an inclined angle, so that the water jetted from the nozzles at this position flows circumferentially along the inner wall of the machine body, and the four corners of the inner wall of the machine body are rounded.

[0008] Furthermore, the lower part of the internal cavity of the machine body extends horizontally outward to form an extension cavity. An inclined platform is fixedly installed within this extension cavity. The upper surface of the inclined platform is sloped, with the lowest point of the slope facing the mesh pipe. The mesh pipe is located below the slope of the inclined platform. An electric cylinder is fixedly installed on the wall of the machine body. A fixed platform is fixedly installed at the end of the telescopic rod of the electric cylinder. A shovel plate is provided on the side of the fixed platform facing the inclined platform. The end of the shovel plate facing the fixed platform is hinged to the fixed platform, while the end of the shovel plate facing away from the fixed platform... One end is an arc end. The front and rear end faces of the shovel plate are spaced at millimeter level from the inner wall of the machine body. A stop block is fixedly installed on the lower surface of the fixed platform to limit the deflection angle of the shovel plate. When the shovel plate deflects downward to its limit position, the lowest end of the shovel plate is higher than the lowest point of the inclined plane on the inclined platform. The arc end of the shovel plate is provided with comb teeth at equal intervals. The width of the comb teeth is smaller than the particle size of the minimum rubber material. The wall of the machine body at the highest point of the inclined plane on the inclined platform is provided with an opening. An opening and closing door is sealed at the opening. The upper end of the opening and closing door is hinged to the outer wall of the machine body.

[0009] Furthermore, a lifting rod is fixedly installed on the inner wall of the machine body near the electric cylinder. The lifting rod is located below the stop block. When the shovel plate approaches the electric cylinder, the lower surface of the shovel plate contacts the lifting rod, causing the shovel plate to deflect at a horizontal angle.

[0010] Furthermore, levers are fixedly installed at equal intervals on the upper surface of the shovel plate near the comb teeth. The distance between adjacent levers is greater than the particle size of the maximum rubber material. When the arc end of the shovel plate is deflected downward to the limit position, the levers are in a horizontal state.

[0011] Furthermore, the upper inclined surface of the inclined platform is fixedly equipped with blocking ribs at equal intervals. The blocking ribs are arc-shaped structures and are made of elastic material.

[0012] Furthermore, the blocking rib is a hollow cavity, and the opening of the blocking rib is arranged downward along the inclined surface of the inclined platform. The width of the opening of the blocking rib is smaller than the particle size of the minimum rubber material.

[0013] Furthermore, the inclined platform is made of carbon steel, and the surface of the inclined platform is entirely lined with a UHMWPE wear-resistant layer. The blocking ribs are made of EPDM rubber with a Shore A hardness of 60-70, and are reinforced with embedded nylon cords.

[0014] This application has the following beneficial effects: This application provides an energy-saving crushing and screening device for rubber processing. Through the arrangement of the machine body, mesh pipes and nozzles, waste rubber products are crushed into rubber material and fall directly into the water below. The water can quickly penetrate into the micropores, gaps and attached impurities on the surface of the rubber material, softening and loosening impurities such as mud, sand, and dust. At the same time, the impact of the falling rubber material, the water surface ripples and the water flow disturbance can have a scouring effect on the surface of the rubber material, causing the softened impurities to fall off the rubber surface, thereby effectively improving the cleanliness of the rubber material and improving the screening quality of the rubber material.

[0015] By using a mesh pipe and nozzles, the nozzles continuously spray water upwards. The upward jet drives the rubber material to rotate in the water, while the angled nozzles at the edges drive the rubber material to revolve around the inner wall of the square machine. The rotation and revolution combine to form a complex motion, causing impurities such as mud and sand on the surface and in the crevices of the rubber material to be washed and rubbed against each other by the water flow from multiple directions. This causes the impurities to soften, fall off, and pass downwards through the mesh pipe, effectively reducing the cleaning dead corners formed by the edges and corners of the machine cavity, accumulation areas, and mutual obstruction of the rubber material. This improves the uniformity of cleaning and the efficiency of impurity separation, thereby significantly improving the cleanliness of the rubber material and enhancing the screening quality.

[0016] By using the inclined platform and shovel plate, the shovel plate pushes the rubber material on the liquid surface to the upper inclined surface of the platform. As the rubber material moves up the upper inclined surface and the shovel plate gradually flattens, the residual water carried by the rubber material can pass through the comb teeth on the shovel plate and fall back into the water below. This achieves timely separation of the rubber material and residual water, reduces the amount of water adhering to the surface of the rubber material, reduces water loss caused by water carried over during discharge, maintains a stable water level in the machine body, facilitates subsequent material removal, improves the dryness of the discharged rubber material, and reduces the frequency of washing water overflow and water replenishment, which is beneficial for water conservation and continuous processing. Attached Figure Description

[0017] The accompanying drawings, which form part of this specification, illustrate embodiments disclosed in this application and, together with the specification, serve to explain the principles disclosed in this application.

[0018] This application can be more clearly understood with reference to the accompanying drawings and the following detailed description, wherein: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram showing the installation positions of the crushing motor, water pump, and water pump of the present invention. Figure 3 This is a schematic diagram of the internal cavity structure of the machine body of the present invention; Figure 4 This is a schematic diagram showing the connection state between the mesh pipe and the nozzle of the present invention; Figure 5 This is a schematic diagram showing the connection state between the shovel plate and the lever of the present invention; Figure 6 This is a schematic diagram showing the cooperation state of the stop block and the shovel plate of the present invention; Figure 7 This is a schematic diagram showing the connection state between the blocking ridge and the inclined platform of the present invention; Figure 8 This is a schematic diagram showing the orientation of the blocking ridge opening of the present invention.

[0019] In the diagram: 1. Machine body; 2. Crushing roller; 3. Crushing motor; 4. Mesh pipe; 5. Water pump; 6. Nozzle; 7. Water pump; 8. Sewage valve; 9. Inclined platform; 10. Electric cylinder; 11. Fixed platform; 12. Shovel plate; 13. Stop block; 14. Opening and closing door; 15. Lifting rod; 16. Actuating rod; 17. Blocking edge. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0021] Example 1: Please refer to Figures 1-8 An energy-saving crushing and screening device for rubber processing includes a body 1. Two crushing rollers 2 are symmetrically arranged in the upper part of the inner cavity of the body 1, with their crushing teeth interlaced. A crushing motor 3 is fixedly installed on the outer wall of the body 1 at one end of the crushing roller 2. The output shaft of the crushing motor 3 is fixedly connected to the rotating shaft of the corresponding crushing roller 2 to achieve differential rotation of the two crushing rollers 2 in opposite directions. A mesh pipe 4 is horizontally arranged in the lower part of the inner cavity of the body 1. A water pump 5 is fixedly installed on the outer wall of the body 1 below the crushing motor 3. The water delivery end of the water pump 5 is connected to the water inlet end of the mesh pipe 4. The water pump 5 is connected to the external water supply mechanism. The upper intersection of the mesh pipe 4 is fixedly connected to the nozzle 6. The spray end of the nozzle 6 faces upward. The outer wall of the machine body 1 is fixedly installed between the water pump 5 and the crushing motor 3. The water inlet of the water pump 7 is connected to the inner cavity of the machine body 1 (the water inlet of the water pump 7 is equipped with a screen to block rubber material and impurities from entering). The water outlet of the water pump 7 is connected to the external water storage mechanism. The bottom wall of the inner cavity of the machine body 1 is set at an inclined angle. The drain valve 8 is fixedly installed in the inner wall of the machine body 1 at the lowest point of the inclined bottom wall.

[0022] In operation, first, the water pump 5 is started. Water from the external water supply mechanism enters the mesh pipe 4 through the water pump 5 and is sprayed upwards from the nozzle 6 at the intersection of the upper side of the mesh pipe 4. As the water pump 5 continues to supply water, water gradually accumulates in the lower part of the inner cavity of the machine body 1, the liquid level rises and overflows the mesh pipe 4 and the nozzle 6, allowing the nozzle 6 to continuously spray water upwards in the water. Then, the water pump 7 is started to pump the excess water in the inner cavity of the machine body 1 into the external water storage mechanism, so that the liquid level in the inner cavity of the machine body 1 is always maintained at the specified height (the liquid level is higher than the mesh pipe 4 and the nozzle 6, but lower than the crushing roller 2). Then, the crushing motor 3 is started and waste rubber is put in. The crushing motor 3 drives the two crushing rollers 2 to rotate in opposite directions at a differential speed. With the crushing teeth of the two crushing rollers 2 arranged in an alternating manner, waste rubber products are fed from the top of the machine body 1 and are subjected to tearing, shearing and squeezing between the two crushing rollers 2, and are crushed into block or granular rubber materials. The crushed rubber materials fall downward into the water in the lower part of the inner cavity of the machine body 1 under the action of gravity, so that the crushed materials fall into the water immediately. The water can quickly penetrate into the micropores, gaps and attached impurities on the surface of the rubber materials, softening and loosening impurities such as mud, sand, and dust. At the same time, the impact of the rubber materials falling, the water surface ripples and the water flow disturbance can have a scouring effect on the surface of the rubber materials, causing the softened impurities to fall off the rubber surface and deposit downward, thereby effectively improving the cleanliness of the rubber materials and improving the screening quality of the rubber materials. At the same time, as the nozzle 6 continuously sprays water upwards, the water flow impacts and disturbs the rubber material falling into the water, causing the rubber material to roll and rotate in the water and come into full contact with the water. Friction and scouring occur between the rubber materials and between the rubber materials and the water flow, which further promotes the softened impurities to fall off the rubber surface and deposit downwards, thus improving the screening quality of the rubber material. As the device operates, heavier impurities such as mud, sand, and stone chips continuously settle to the bottom of the inner cavity of the machine body 1. Since the bottom wall of the inner cavity of the machine body 1 is inclined, the impurities slide along the inclined bottom wall to the lowest point under the action of gravity. When the impurities accumulate to a certain amount, the drain valve 8 is opened to discharge the mud, sand, sewage and other impurities deposited at the bottom. After the discharge is completed, the drain valve 8 is closed and the device can continue to operate.

[0023] Please see Figures 1-8 The nozzle 6 located at the edge of the mesh pipe 4 is set at an inclined angle, so that the water sprayed from the nozzle 6 at this position flows circumferentially along the inner wall of the machine body 1, and the four corners of the inner wall of the machine body 1 are rounded.

[0024] During the continuous upward spraying of water from the nozzle 6, the upward water flow impacts the rubber material falling into the water, causing the rubber material to continuously tumble and rotate around its own axis. At the same time, the inclined nozzle 6 located at the edge of the mesh pipe 4 sprays water with a tangential component, forming a circumferential rotating water flow along the inner wall of the machine body 1 and its four corner arc transitions. This propels the floating or suspended rubber material to revolve circumferentially along the inner wall of the machine body 1. The superposition of rotation and revolution forms a compound motion, causing the rubber material to continuously change its posture and position. The surface and gaps of the rubber material are washed by water flow from multiple directions, and the rubber material rubs and collides with each other, causing impurities to soften and fall off more quickly and pass downward through the mesh pipe 4. This reduces the cleaning dead corners formed by the corners and accumulation areas of the inner cavity of the machine body 1 and the mutual obstruction of the rubber material, improves the cleaning uniformity and impurity separation efficiency, and thus significantly improves the cleanliness of the rubber material and the screening quality of the rubber material.

[0025] Please see Figures 1-8The lower part of the inner cavity of the machine body 1 extends horizontally outward to form an extension cavity. An inclined platform 9 is fixedly installed in the extension cavity of the machine body 1. The upper surface of the inclined platform 9 is inclined, and the lowest point of the inclined surface of the inclined platform 9 faces the mesh pipe 4. The mesh pipe 4 is located below the inclined surface of the inclined platform 9. An electric cylinder 10 is fixedly installed on the wall of the machine body 1. The telescopic rod of the electric cylinder 10 extends horizontally into the inner cavity of the machine body 1. A fixed platform 11 is fixedly installed at the end of the telescopic rod of the electric cylinder 10. A shovel plate 12 is provided on the side of the fixed platform 11 facing the inclined platform 9. The end of the shovel plate 12 facing the fixed platform 11 is hinged to the fixed platform 11, and the end of the shovel plate 12 facing away from the fixed platform 11 is arc-shaped. At the end, there is a millimeter-level gap between the front and rear ends of the shovel plate 12 and the inner wall of the machine body 1. A stop block 13 is fixedly installed on the lower surface of the fixed platform 11. When the shovel plate 12 deflects downward under its own weight, the stop block 13 blocks the shovel plate 12, thereby limiting the deflection angle of the shovel plate 12. When the shovel plate 12 deflects downward to the extreme position, the lowest end of the shovel plate 12 is higher than the lowest point of the inclined surface on the inclined platform 9. The arc end of the shovel plate 12 is provided with comb teeth at equal intervals. The width of the comb teeth is less than the minimum particle size of the rubber material. The wall of the machine body 1 at the highest point of the inclined surface on the inclined platform 9 is provided with an opening. An opening and closing door 14 is sealed and installed at the opening. The upper end of the opening and closing door 14 is hinged to the outer wall of the machine body 1.

[0026] During the process of water accumulating in the lower inner cavity of the machine body 1 through the nozzle 6, the upper liquid layer of the accumulated water is located at the lower part of the upper side of the inclined platform 9. Afterwards, when the crushed rubber material enters the accumulated water for a period of time, the electric cylinder 10 is activated at a timed interval, the telescopic rod extends horizontally, and drives the fixed platform 11 and the shovel plate 12 to move towards the inclined platform 9. The lower section of the shovel plate 12 (the section where the arc end is located) contacts the liquid surface and the rubber material in the upper liquid layer, pushing the floating or suspended rubber material to the lowest point of the inclined surface of the inclined platform 9. The millimeter-level distance between the front and rear end faces of the shovel plate 12 and the inner wall of the machine body 1 prevents the rubber material from leaking through the sides of the shovel plate 12. During the process of the shovel plate 12 pushing the rubber material towards the inclined platform 9, the nozzles 6 arranged along the moving path of the shovel plate 12 on the mesh pipe 4 cause the water jets sprayed upward by the nozzles 6 to contact the lower surface of the shovel plate 12. Under the continuous impact of the jet, its own weight, and the limiting effect of the stop block 13, the shovel plate 12 can generate continuous up-and-down high-frequency micro-deflection around its hinge axis with the fixed platform 11. This micro-deflection causes the rubber material pushed by the shovel plate 12 to be continuously shaken up and down slightly, causing the residual mud and sand and fine impurities in the gaps of the rubber material to move relative to the rubber material due to the difference in inertia, thereby shaking them out from the gaps of the rubber material and sinking downward through the comb teeth of the shovel plate 12. Through this action, the cleanliness of the rubber material is further improved, and the screening quality of the rubber material is improved. When the arc end of the shovel plate 12 reaches the lowest point of the inclined plane 9, as the telescopic rod of the electric cylinder 10 continues to extend, the arc end of the shovel plate 12 moves upward along the inclined plane 9. Since the shovel plate 12 is hinged to the fixed platform 11, the inclined plane 9 generates a reaction force on the shovel plate 12 through the arc end of the shovel plate 12, causing the arc end of the shovel plate 12 to gradually deflect upward around the hinge point. The stop block 13 limits the extreme angle of downward deflection of the shovel plate 12. The height of the inclined plane 9 and the hinge position prevent the shovel plate 12 from rotating to a horizontal state during the pushing process, thereby maintaining the pushing and guiding of the rubber material, so that the rubber material moves steadily upward along the inclined plane 9, and avoids the rubber material falling back or accumulating in the middle of the inclined plane. As the shovel plate 12 pushes the rubber material up the inclined plane 9, the residual water carried by the rubber material passes through the comb tooth gap at the arc end of the shovel plate 12 under the action of gravity and the pushing action of the shovel plate 12, falls back to the bottom of the inclined plane 9, and enters the water accumulation area where the mesh pipe 4 is located. Since the width of the comb tooth gap is smaller than the minimum particle size of the rubber material, the rubber material cannot leak back from the comb tooth gap, thereby realizing the timely separation of the rubber material and the residual water, reducing the amount of water attached to the surface of the rubber material, reducing the water loss caused by water carried in the discharge, improving the dryness of the discharge and helping to save water. When the rubber material is pushed to the highest point of the inclined plane 9 by the shovel plate 12, the opening and closing door 14 on the wall of the machine body 1 is opened and the material is taken out. After the material is taken out, the opening and closing door 14 is closed to restore the seal at the opening. At the same time, the electric cylinder 10 is started to reverse the action, the telescopic rod retracts, and the fixed platform 11 and the shovel plate 12 are driven back. After the shovel plate 12 leaves the inclined plane 9, it deflects downward around the hinge point under its own gravity until it is blocked by the stop block 13 again, and returns to the initial tilt angle, ready for the next material push.

[0027] Example 2: Please refer to Figures 1-8 A lifting rod 15 is fixedly installed on the inner wall of the machine body 1 near the electric cylinder 10. The lifting rod 15 is located below the stop block 13. When the shovel plate 12 approaches the electric cylinder 10, the lower surface of the shovel plate 12 contacts the lifting rod 15, causing the shovel plate 12 to deflect at a horizontal angle.

[0028] When the electric cylinder 10 retracts, the fixed platform 11 drives the shovel 12 to move closer to the electric cylinder 10. At the end of the return stroke, the shovel 12 gradually approaches the lifting rod 15. When the shovel 12 moves to a position close to the electric cylinder 10, the lower surface of the shovel 12 contacts the lifting rod 15. Since the end of the shovel 12 facing the fixed platform 11 is hinged to the fixed platform 11, the lifting rod 15 generates an upward supporting force on the lower surface of the shovel 12, causing the shovel 12 to overcome its own weight and deflect upward around the hinge point. That is, the arc end of the shovel 12 facing away from the fixed platform 11 gradually tilts upward, and the tilt of the shovel 12... The angle decreases, deflecting towards the horizontal angle, and the arc end of the shovel plate 12 leaves the liquid surface. When the electric cylinder 10 extends again, the fixed platform 11 drives the shovel plate 12 away from the lifting rod 15. The shovel plate 12 loses the upward support of the lifting rod 15 and deflects downward under its own gravity until it is blocked again by the stop block 13, restoring the initial tilt angle. The arc end of the shovel plate 12 re-enters the water for the next push. Through the above settings, the shovel plate 12, which has stopped working, is prevented from blocking the water flow and causing the rubber material to revolve. This ensures that the rubber material can fully contact the water and avoids affecting the screening quality of the rubber material. In addition, when the lifting rod 15 contacts the lower surface of the shovel plate 12, it can also scrape off the mud and sludge adhering to the lower surface of the shovel plate 12, thus playing a certain self-cleaning role.

[0029] Please see Figures 1-8 A lever 16 is fixedly installed at equal intervals on the upper surface of the shovel plate 12 near the comb teeth. The distance between adjacent levers 16 is greater than the particle size of the maximum rubber material. When the arc end of the shovel plate 12 is deflected downward to the limit position, the lever 16 is in a horizontal state.

[0030] When the arc end of the shovel plate 12 deflects downward to the limit position limited by the stop block 13, the lever 16 is in a horizontal state. Thus, when the shovel plate 12 extends towards the inclined platform 9, the lever 16 enters the liquid surface in a horizontal posture and inserts into the floating rubber material layer. Afterward, when the electric cylinder 10 drives the shovel plate 12 to move horizontally, the lever 16 moves forward synchronously with the shovel plate 12. At the same time, the nozzle 6 corresponding to the position of the shovel plate 12 continuously impacts the lower surface of the shovel plate 12, causing the shovel plate 12 to generate high-frequency micro-deflection around the hinge point with the fixed platform 11. The lever 16 moves up and down synchronously with the shovel plate 12. The up and down micro-movement of the lever 16 produces longitudinal pushing, separating and shaking effects on the floating or suspended rubber material, so that the overlapping, clumped or bridged rubber material is dispersed, which increases the gap between the rubber material, making it easier for water to enter between the rubber material and the gaps between the rubber material. This allows the mud, sand and other impurities on the surface and in the gaps of the rubber material to fully contact the water and accelerate softening and falling off. Meanwhile, as the lever 16 moves up and down in the water, it periodically displaces and draws in the surrounding water, forming local eddies and pressure fluctuations. These local eddies further scour the surface and gaps of the rubber material, helping softened impurities to detach from the rubber material and flow downwards with the water through the mesh pipe 4 or fall back into the water accumulation area through the comb teeth. Through the above settings, the lever 16 transforms the pushing action of the shovel plate 12 and the micro-deflection caused by the jet into longitudinal dispersion and local eddy disturbance of the floating rubber material layer, improving the full contact between the rubber material and the water, reducing the agglomeration of the rubber material and the dead corners of the cleaning, enhancing the effect of impurity removal and drainage, and further improving the cleanliness and screening quality of the rubber material.

[0031] Example 3: Please refer to Figures 1-8 The upper inclined surface of the inclined platform 9 is fixedly equipped with blocking ribs 17 at equal intervals. The blocking ribs 17 are arc-shaped structures and are made of elastic material.

[0032] As the shovel plate 12 pushes the rubber material up the inclined plane 9, the rubber material continuously passes through multiple elastic arc-shaped blocking edges 17. Since the blocking edges 17 are arc-shaped, the rubber material can pass over them smoothly without being caught. Since the blocking edges 17 are made of elastic material, they can rebound after being pressed by the rubber material. Through the above actions, the rubber material is slightly lifted and slightly bumped. This slight bumping causes the rubber material to continuously change its posture, causing the water trapped in the gaps of the rubber material to be squeezed out under the action of inertia, gravity and compression, and flow back down the inclined plane 9. The backflowing water falls back into the water accumulation area where the mesh pipe 4 is located through the comb teeth on the shovel plate 12. Through the above actions, the dryness of the discharged material is further improved.

[0033] Please see Figures 1-8 The blocking rib 17 is a hollow cavity. The opening of the blocking rib 17 is set downward along the inclined surface of the inclined platform 9, and the opening width is smaller than the particle size of the minimum rubber material.

[0034] Because the blocking rib 17 adopts a hollow elastic cavity structure, its opening is arranged downward along the upper inclined surface of the inclined platform 9, so that the inner cavity of the second lowest and lowest blocking rib 17 can be connected with the water below or around the inclined platform 9 and filled with water during the initial water accumulation. Then, when the shovel plate 12 drives the lever 16 to move towards the inclined platform 9, the lever 16 first contacts the second lowest blocking rib 17 and squeezes the hollow cavity of the blocking rib 17, causing the water in the cavity to rush out from the downward opening. The water forms a pulse water flow at the lower end of the upper inclined surface of the inclined platform 9 and meets the rubber material pushed by the shovel plate 12, which pulses and washes the bottom and gaps of the rubber material, causing the mud and sand and other impurities in the gaps of the rubber material to fall off, thus enhancing the drainage and impurity removal effect. Subsequently, lever 16 passes over the second-lowest position blocking ridge 17 and continues to move upward with shovel plate 12. After the second-lowest position blocking ridge 17 loses the pressure of lever 16, its hollow elastic cavity rebounds and expands. Since the blocking ridge 17 is always immersed in water, the cavity absorbs water from the surrounding water through the opening, restores the cavity volume, and at the same time sucks in or disturbs the mud between the ridges, playing the role of self-cleaning and preparing for the next squeezing and spraying of water. Next, the arc end of the shovel plate 12 contacts the lowest position blocking rib 17 and squeezes the hollow cavity of the blocking rib 17, causing the water inside to spray out obliquely downward. Since the lowest position blocking rib 17 is located near the lowest point of the inclined surface on the inclined platform 9, its water spray direction is set to obliquely downward and avoid the rubber material pushed by the shovel plate 12. Therefore, the water does not directly contact the rubber material, but is mainly used to flush the mud and sludge at the lower part of the inclined surface on the inclined platform 9 and push the settled impurities to move down the mesh pipe 4 or to the sewage discharge side. Subsequently, as the electric cylinder 10 continues to extend, the shovel plate 12 gradually flattens along the upper slope of the inclined platform 9. The lever 16 tilts upward with the shovel plate 12 and no longer contacts the blocking ridge 17. The gradually flattening shovel plate 12 squeezes the blocking ridge 17 at the upper part of the upper slope of the inclined platform 9, and the air in its cavity is discharged from the opening, forming a jet. The airflow blows the water film and light impurities on the upper slope of the inclined platform 9, causing the water film to break and the light impurities to detach.

[0035] Example 4: The inclined platform 9 is made of carbon steel and the surface is lined with a UHMWPE wear-resistant layer. The blocking rib 17 is made of EPDM rubber with a Shore A hardness of 60~70 and is reinforced with nylon cords embedded inside.

[0036] The inclined platform 9 is made of carbon steel to ensure that it has sufficient strength, rigidity and dimensional stability when it is subjected to the pushing reaction force of the shovel plate 12, the gravity of the rubber material, the horizontal thrust of the electric cylinder 10 and the repeated squeezing and rebound of the blocking ridge 17, so as to avoid deformation, sinking or displacement of the opening position of the inclined platform 9. The entire surface of the inclined platform 9 is lined with a UHMWPE wear-resistant layer. Utilizing the low friction, self-lubrication, water resistance, mud and sand erosion resistance and impact resistance of UHMWPE, the frictional resistance is small when the arc end and lower surface of the shovel plate 12 gradually turn along the upper inclined surface of the inclined platform 9. This reduces the load and energy consumption of the electric cylinder 10, reduces rust on the carbon steel surface, mud adhesion and rubber material scratches, and at the same time avoids direct contact between carbon steel and water and mud and sand to contaminate the rubber material, thus extending the maintenance cycle of the inclined platform 9 under long-term water immersion and mud and sand erosion conditions. The blocking rib 17 is made of EPDM rubber, which is water-resistant, aging-resistant, ozone-resistant, and chemically resistant. It is not easy to crack, swell, or harden under long-term immersion in water and alternating wet and dry conditions. The Shore A hardness of 60~70 allows the blocking rib 17 to produce sufficient compression deformation under the pressure of the lever 16 and the shovel plate 12, without being too hard to prevent the shovel plate 12 from gradually flattening, scratching the rubber material, or causing the lever 16 to jam. In addition, the moderate rebound within this hardness range can produce small bumps, lifts, and rolls on the rubber material, which helps to squeeze out the water trapped in the rubber gaps. The nylon cord reinforcement embedded inside the blocking rib 17 can improve the tear resistance, fatigue resistance and dimensional stability of the blocking rib 17, limit the excessive expansion, twisting or opening deformation of the hollow cavity during repeated compression-rebound-filling-exhausting process, keep the opening direction stable and keep it facing downward along the upper inclined surface of the inclined platform 9, ensure the stability of the water spray direction of the lower blocking rib 17 and the stability of the exhaust direction of the upper blocking rib 17, and prevent the blocking rib 17 from falling off or tearing from the inclined platform 9 under the repeated action of the shovel plate 12 and the lever 16.

Claims

1. An energy-saving crushing and screening device for rubber processing, comprising: The machine body (1) has two crushing rollers (2) symmetrically arranged at the upper part of its inner cavity. A crushing motor (3) is fixedly installed on the outer wall of the machine body (1) at one end of the crushing roller (2). The output shaft of the crushing motor (3) is fixedly connected to the rotating shaft of the corresponding crushing roller (2). The machine body (1) has a mesh pipe (4) horizontally arranged at the lower part of its inner cavity. A water pump (5) is fixedly installed on the outer wall of the machine body (1) below the crushing motor (3). The water pump (5) has its water delivery end connected to the water inlet end of the mesh pipe (4). The water inlet of the machine body (1) is connected to the external water supply mechanism. The upper intersection of the mesh pipe (4) is fixedly connected to the nozzle (6). The spray end of the nozzle (6) faces upward. The outer wall of the machine body (1) and the position between the water pump (5) and the crushing motor (3) are fixedly installed with a water pump (7). The water inlet of the water pump (7) is connected to the inner cavity of the machine body (1). The water outlet of the water pump (7) is connected to the external water storage mechanism. The bottom wall of the inner cavity of the machine body (1) is set at an inclined angle. The drain valve (8) is fixedly connected to the inner wall of the machine body (1) and the position corresponding to the lowest point of the inclined bottom wall.

2. The energy-saving crushing and screening device for rubber processing according to claim 1, characterized in that, The nozzle (6) located at the edge of the mesh pipe (4) is set at an inclined angle, so that the water sprayed by the nozzle (6) at this position flows circumferentially along the inner wall of the machine body (1), and the four corners of the inner wall of the machine body (1) are rounded.

3. The energy-saving crushing and screening device for rubber processing according to claim 2, characterized in that, The lower part of the inner cavity of the machine body (1) extends horizontally outward to form an extension cavity. An inclined platform (9) is fixedly installed in the extension cavity of the machine body (1). The upper surface of the inclined platform (9) is set as an incline. The lowest point of the incline of the inclined platform (9) faces the mesh pipe (4). The mesh pipe (4) is located below the incline of the inclined platform (9). An electric cylinder (10) is fixedly installed on the wall of the machine body (1). A fixed platform (11) is fixedly installed at the end of the telescopic rod of the electric cylinder (10). A shovel plate (12) is set on the side of the fixed platform (11) facing the inclined platform (9). The end of the shovel plate (12) facing the fixed platform (11) is hinged to the fixed platform (11). The shovel plate (12) facing away from the fixed platform (11) is hinged to the fixed platform (11). One end of the fixed platform (11) is an arc end. The front and rear end faces of the shovel plate (12) are millimeter-level apart from the inner wall of the machine body (1). A stop block (13) is fixedly installed on the lower surface of the fixed platform (11) to limit the deflection angle of the shovel plate (12). When the shovel plate (12) deflects downward to the limit position, the lowest end of the shovel plate (12) is higher than the lowest point of the inclined plane on the inclined platform (9). The arc end of the shovel plate (12) is provided with comb teeth at equal intervals. The width of the comb teeth is smaller than the particle size of the minimum rubber material. The wall of the machine body (1) at the highest point of the inclined plane on the inclined platform (9) is provided with an opening. An opening door (14) is sealed at the opening. The upper end of the opening door (14) is hinged to the outer wall of the machine body (1).

4. The energy-saving crushing and screening device for rubber processing according to claim 3, characterized in that, A lifting rod (15) is fixedly installed on the inner wall of the body (1) near the electric cylinder (10). The lifting rod (15) is located below the stop block (13). When the shovel plate (12) approaches the electric cylinder (10), the lower surface of the shovel plate (12) contacts the lifting rod (15), causing the shovel plate (12) to deflect at a horizontal angle.

5. The energy-saving crushing and screening device for rubber processing according to claim 3, characterized in that, On the upper surface of the shovel plate (12) and near the comb teeth, there are fixed levers (16) at equal intervals. The distance between adjacent levers (16) is greater than the particle size of the maximum rubber material. When the arc end of the shovel plate (12) is deflected downward to the limit position, the levers (16) are in a horizontal state.

6. The energy-saving crushing and screening device for rubber processing according to claim 5, characterized in that, The upper inclined surface of the inclined platform (9) is fixedly equipped with blocking ribs (17) at equal intervals. The blocking ribs (17) are arc-shaped structures and are made of elastic material.

7. The energy-saving crushing and screening device for rubber processing according to claim 6, characterized in that, The blocking rib (17) is a hollow cavity. The opening of the blocking rib (17) is set downward along the upper inclined surface of the inclined platform (9). The width of the opening of the blocking rib (17) is smaller than the particle size of the minimum rubber material.

8. The energy-saving crushing and screening device for rubber processing according to claim 7, characterized in that, The inclined platform (9) is made of carbon steel and the surface of the inclined platform (9) is lined with a UHMWPE wear-resistant layer. The blocking rib (17) is made of EPDM rubber with a Shore A hardness of 60~70 and is reinforced with nylon cords embedded inside.

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