A device for separating rubber offcut particles

Abstract

This utility model discloses a separation device for rubber scrap particles, including a rubber scrap particle separating vibrating screen. The vibrating screen includes a support frame, a screen box, a discharge port, a vibrating disc, and vibrating motors located on both sides of the screen box. The vibrating disc includes an upper vibrating disc and a lower vibrating disc, both of which have screen holes on their surfaces. The lower vibrating disc includes a vibrating disc cooling component and a compensation chamber. A rubber scrap particle blocking component is provided at the upper end of the screen box. The rubber scrap particle blocking component includes a blocking cover with a feed inlet and a wind-powered cooling component. This utility model uses the liquid cooling pipe, the compensation chamber, and the blocking cover to work together to circulate cooling at the bottom of the vibrating disc. The compensation chamber inside the vibrating disc eliminates local hot spots, and the blocking cover has a built-in fan to suppress the bounce of rubber particles. The entire structure can achieve simultaneous cooling during the separation process without an external cooling bed, realizing the separation of low-temperature and low-viscosity rubber scrap particles.

Description

Technical Field

[0001] This utility model relates to, but is not limited to, the field of rubber scrap separation technology, and more specifically, to a device for separating rubber scrap particles. Background Technology

[0002] Existing methods for separating rubber scrap particles mostly use ordinary linear vibrating screens, which rely solely on the sieve holes for grading. Rubber particles are highly elastic and generate heat quickly through friction, causing the sieve surface temperature to rise easily. This leads to the particles softening and sticking together, clogging the sieve holes and requiring frequent shutdowns for cleaning. At high temperatures, the rubber surface becomes sticky, increasing bounce and making it easy for the particles to fly out from the open sieve surface. If an external cooling bed is used, additional equipment is required, the area is large, the process is long, and the energy consumption is high.

[0003] To address the issue that rubber scrap particles generate heat during continuous vibration separation, causing them to stick to the vibratory plate, and that the high elasticity of the rubber causes it to bounce when moved by the vibratory plate, a separation device for rubber scrap particles with a built-in cooling structure was designed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a device for separating rubber scrap particles.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: This utility model discloses a device for separating rubber scrap particles, including a rubber scrap particle separating vibrating screen. The rubber scrap particle separating vibrating screen includes a support frame, a screen box, a discharge port, a vibrating plate, and vibrating motors located on both sides of the screen box. The vibrating plate includes an upper vibrating plate and a lower vibrating plate. Screen holes are opened on the surface of both the upper and lower vibrating plates. The lower vibrating plate includes a vibrating plate cooling component and a compensation cavity. A rubber scrap particle blocking assembly is provided at the upper end of the screen box. The rubber scrap particle blocking assembly includes a blocking cover with a feed inlet and a wind-powered cooling component.

[0006] Preferably, the vibratory feeder cooling component includes a liquid cooling pipe disposed at the bottom of the lower vibratory feeder. The liquid cooling pipe is a serpentine copper pipe, and the inlet and outlet of the liquid cooling pipe are respectively provided with connecting pipes. The connecting pipes are corrugated flexible hoses, and the connecting pipes are connected to an external cold source.

[0007] Preferably, the liquid cooling pipe is installed on the bottom side of the lower vibrating plate by clamps, the compensation cavity is opened on the surface of the lower vibrating plate, the compensation cavity is offset from the liquid cooling pipe, and several baffles are fixed inside the compensation cavity.

[0008] Preferably, several baffles are equidistantly arranged in the compensation cavity, the compensation cavity is pre-filled with coolant / water, and the compensation cavity is a closed design.

[0009] Preferably, the upper vibrating plate and the lower vibrating plate are connected by screws, and the positions of the sieve holes on the upper vibrating plate and the lower vibrating plate are consistent.

[0010] Preferably, the blocking cover has a conical design, the blocking cover is connected to the screen box by screws, and a sealing strip is provided between the bottom of the blocking cover and the screen box.

[0011] Preferably, the vibratory feeder is made of either aluminum alloy or copper alloy, and the inner wall of the shield and the surface of the vibratory feeder are coated with polytetrafluoroethylene.

[0012] Preferably, the wind-powered cooling component includes a housing and a fan. The housing has a U-shaped cross-section and is inverted on top of the baffle and fixedly connected to the baffle. The fan is located on the inner top of the housing and is an axial flow fan.

[0013] Preferably, the outer top of the housing is provided with a ventilation slot, the front side of the fan is provided with a steel mesh, the steel mesh is screwed to the bottom of the housing, and the feed inlet is opened on the left or right side of the baffle.

[0014] Preferably, the vibrating motors are symmetrically arranged on the left and right sides of the screen box, and the two vibrating motors are of the same model and work synchronously. A spring damper or damping spring is provided between the support frame and the screen box.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention utilizes the synergy of liquid cooling pipes, compensation chambers, and baffles to achieve circulating cooling at the bottom of the vibratory feeder. The compensation chamber inside the vibratory feeder eliminates local hot spots, and the baffles have a built-in fan that provides secondary cooling and suppresses the bouncing of rubber particles. The entire structure can achieve simultaneous cooling during the separation process without the need for an external cooling bed, enabling continuous, low-temperature, and low-viscosity separation of rubber scrap particles. The process is shorter and maintenance is less labor-intensive.

[0016] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0017] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a disassembly diagram of the present invention; Figure 3 This is a schematic diagram of the disassembly structure of the vibratory feeder of this utility model; Figure 4 This is an enlarged structural diagram of part A of the disassembled structure of the vibratory feeder of this utility model; Figure 5 This is an enlarged structural diagram of part B of the disassembled structure of the vibratory feeder of this utility model; Figure 6 This is a cross-sectional structural diagram of the barrier cover of this utility model; In the diagram: 1. Vibrating screen for separating rubber scrap particles; 11. Support frame; 12. Screen box; 13. Discharge port; 14. Vibrating plate; 141. Upper vibrating plate; 142. Lower vibrating plate; 143. Liquid cooling pipe; 144. Connecting pipe; 145. Compensation chamber; 146. Baffle; 147. Screen holes; 15. Vibrating motor; 2. Rubber scrap particle blocking assembly; 21. Blocking cover; 22. Outer shell; 23. Feed inlet; 24. Fan; 25. Ventilation slot; 26. Sealing strip. Detailed Implementation

[0019] like Figures 1-6As shown, this utility model provides a device for separating rubber scrap particles, including a rubber scrap particle separating vibrating screen 1. The rubber scrap particle separating vibrating screen 1 includes a support frame 11, a screen box 12, a discharge port 13, a vibrating plate 14, and vibrating motors 15 located on both sides of the screen box 12. The vibrating plate 14 includes an upper vibrating plate 141 and a lower vibrating plate 142. The surfaces of the upper vibrating plate 141 and the lower vibrating plate 142 are provided with screen holes 147. The lower vibrating plate 142 includes a vibrating plate 14 cooling component and a compensation cavity 145. A rubber scrap particle blocking component 2 is provided at the upper end of the screen box 12. The rubber scrap particle blocking component 2 includes a blocking cover 21 with a feed inlet 23 and a wind-powered cooling component.

[0020] Furthermore, in this embodiment, the cooling component of the vibratory plate 14 includes a liquid cooling pipe 143 disposed at the bottom of the lower vibratory plate 142. The liquid cooling pipe 143 is a serpentine copper pipe, and the inlet and outlet of the liquid cooling pipe 143 are respectively provided with connecting pipes 144. The connecting pipes 144 are corrugated hoses, and the connecting pipes 144 are connected to a cold source, which is a chiller or a water tank containing coolant / water (driven by a water pump). By supplying coolant / water to the liquid cooling pipe 143, the coolant / water flows in at the inlet of the cooling pipe and flows out at the outlet, cooling the vibratory plate 14 and continuously removing the heat from the vibratory plate 14. The corrugated hose design connects the serpentine copper pipe that vibrates at high frequency with the vibratory plate 14, allowing the coolant to circulate continuously between the two without being broken or leaking due to vibration, thus providing flexible compensation. The corrugated pipe acts as an elastic bridge between vibration and stillness, does not participate in heat dissipation, and does not solve the problem of uneven internal temperature of the vibratory plate 14.

[0021] In this embodiment, the liquid cooling pipe 143 is installed on the bottom side of the lower vibrating plate 142 by clamps, and the compensation cavity 145 is opened on the surface of the lower vibrating plate 142. The compensation cavity 145 and the liquid cooling pipe 143 are staggered. Several baffles 146 are fixed inside the compensation cavity 145. The baffles 146 divide the compensation cavity 145 into small chambers, limit the range of movement of the coolant / water in the compensation cavity 145, transform the inertial flow of the liquid into multiple folds, reduce the overall shaking amplitude, and maintain the mixing effect. This prevents local overheating when the vibrating plate 14 is vibrating and screening to separate rubber scrap particles. By staggering the two cooling paths, they do not interfere with each other, thus improving the cooling effect of the vibrating plate 14.

[0022] It should be noted that the corrugated hose is only responsible for the coolant pipe. The compensation chamber 145 can be closed independently or equipped with an openable and closable bypass valve, and can switch between two modes: independent closure or parallel connection with the liquid cooling pipe 143.

[0023] In this embodiment, several baffles 146 are equidistantly arranged in the compensation cavity 145 to separate the cavity of the compensation cavity 145. The compensation cavity 145 is pre-filled with coolant / water. The compensation cavity 145 is a closed design, with an inlet and outlet for replacing coolant / water only opened on the outside of the lower vibrating plate 142, and sealed by a sealing plug.

[0024] It should be noted that the baffle 146 has through holes or notches, allowing the liquid to flow back and forth in the compensation chamber 145 while maintaining overall closure.

[0025] In this embodiment, screws are used between the upper vibrating plate 141 and the lower vibrating plate 142, and the positions of the sieve holes 147 on the upper vibrating plate 141 and the lower vibrating plate 142 are consistent. The upper and lower vibrating plates 142 are assembled by screws, and the positions of the sieve holes 147 on the upper and lower vibrating plates 142 are misaligned with the cooling pipe and the compensation cavity 145.

[0026] In this embodiment, the blocking cover 21 is a conical design. The blocking cover 21 is connected to the screen box 12 by screws. A sealing strip 26 is provided between the bottom of the blocking cover 21 and the screen box 12. The blocking cover 21 is installed on the upper end of the screen box 12 by screws to prevent rubber scrap particles from being ejected from the screen box 12 due to elasticity when they are separated by the vibrating screen. The sealing strip 26 is fixed to the bottom of the blocking cover 21.

[0027] In this embodiment, the vibratory plate 14 is made of aluminum alloy or copper alloy, which allows it to be better cooled by the cooling pipe and the compensation cavity 145. The inner wall of the baffle 21 and the surface of the vibratory plate 14 are coated with polytetrafluoroethylene. The coating is applied in advance by a spraying device to improve the non-stickiness of the inner wall of the baffle 21 and the surface of the vibratory plate 14, and to prevent rubber scrap particles from sticking to the baffle 21 and the vibratory plate 14.

[0028] In this embodiment, the wind-powered cooling component includes a housing 22 and a fan 24. The housing 22 has a U-shaped cross-section and is inverted on top of the baffle 21 and fixedly connected to the baffle 21 to prevent air leakage. The fan 24 is located at the inner top of the housing 22. The fan 24 is an axial flow fan and includes a motor that drives its rotation. The fan 24 cools the screen box 12, and the airflow can blow downwards towards the rubber scrap particles that are being separated by vibration, reducing the excessive jumping of the rubber scrap particles.

[0029] It should be noted that the airflow of fan 24 should not be too high or too low. It needs to be set according to the size of the rubber scrap particles to avoid the airflow being too high and affecting the separation of rubber scrap particles, and to avoid the airflow being too low and causing the rubber scrap particles to jump to fan 24. For example, 1200 rpm can be selected for 1-3mm particles, and 900 rpm can be selected for 3-5mm particles. Those skilled in the art can make fine adjustments according to the actual situation.

[0030] In this embodiment, a ventilation slot 25 is provided on the top of the outer shell 22 to provide air to the fan 24. A steel mesh is provided on the front side of the fan 24, and the steel mesh is screwed to the bottom of the outer shell 22 to provide a certain degree of protection for the fan 24 and reduce the situation where rubber scrap particles bounce into the fan 24. The feed port 23 is opened on the left or right side of the baffle 21 to facilitate the feeding of rubber scrap particles.

[0031] In this embodiment, the vibration motors 15 are symmetrically arranged on the left and right sides of the screen box 12, and the two vibration motors 15 are of the same model and work synchronously. The vibration of the screen box 12 is driven by the two identical vibration motors 15 to perform vibration separation of rubber scrap particles. A spring damper or damping spring is provided between the support frame 11 and the screen box 12 to stabilize the vibration of the screen box 12 and avoid excessive vibration.

[0032] Specifically, the process of separating rubber scrap particles is as follows: S1. Check whether the serpentine copper pipe, compensation chamber 145, fan 24, etc. are operating normally. There should be no leakage in the copper pipe and no bends in the hose. The compensation chamber 145 should be filled with coolant and all air bubbles should be removed. The fan blades and steel mesh should be intact. S2, start the chiller / pump, fan 24 and vibration motor 15 in sequence to allow the coolant to circulate in the copper pipe, and the liquid in the compensation chamber 145 to shuttle back and forth with the vibration. The fan 24 blows air downwards to confirm that the overall temperature of the vibration plate 14 is normal and there is no abnormal shaking.

[0033] S3, keep the vibratory plate 14 cooling component running, set the fan speed 24 in advance, and then start feeding the material evenly. The liquid cooling pipe 143 continuously removes heat, and the compensation chamber 145 uses vibration to stir the liquid back and forth to eliminate local hot spots. The fan 24 forms a downward airflow, which both cools the material a second time and presses the elastic particles back onto the screen surface to prevent them from jumping out. S4. If you feel that the vibratory plate 14 is locally hot (i.e. the rubber scrap particles being discharged are damaged and some of them are stuck in the screen box 12 due to high temperature), first check the liquid flow in the liquid cooling pipe 143, then check the liquid level in the compensation chamber 145. If necessary, increase the speed of the fan 24. If any particles are sucked into the fan 24, stop the machine immediately and clean the steel mesh. S5. After the separation of rubber scrap particles is completed, stop feeding first, run the machine empty to discharge the remaining material, and then shut down the chiller / pump, fan 24, and vibrating motor 15 in sequence. Regularly blow away the dust on the surface of the non-stick coating, drain the old liquid from the compensation chamber 145 and add new liquid every week, and check the hoses and welds. The above 5 steps can achieve continuous, efficient, low-temperature, and low-viscosity separation of rubber scrap particles; Among them, the rubber scrap particle separation vibrating screen 1 is a linear screen that uses a vibrating motor 15 as the vibration source and is driven by two vibrating motors 15. When the two vibrating motors 15 rotate synchronously and in opposite directions, the excitation force generated by the eccentric block of the vibrating motor 15 cancels each other in the direction parallel to the axis of the vibrating motor 15 and overlaps into a resultant force in the direction perpendicular to the axis of the vibrating motor 15. Therefore, the running trajectory of the vibrating screen is a straight line. The two motor shafts have an inclination angle relative to the screen surface. Under the resultant force of the excitation force and the weight of the material, the material is thrown up and jumps forward in a straight line on the screen surface. Various sizes of rubber scrap particles are separated through different layers of screens and discharged from the discharge port 13, thereby achieving the purpose of separating rubber scrap particles from impurities or large / small size particles.

[0034] The components of this utility model, such as the rubber scrap particle separation vibrating screen 1, vibrating plate 14, liquid cooling pipe 143, chiller, vibrating motor 15, and fan 24, are all general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0035] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for separating rubber scrap particles, comprising a rubber scrap particle separating vibrating screen (1), the rubber scrap particle separating vibrating screen (1) comprising a support frame (11), a screen box (12), a discharge port (13), a vibrating plate (14), and vibrating motors (15) located on both sides of the screen box (12), characterized in that, The vibratory plate (14) includes an upper vibratory plate (141) and a lower vibratory plate (142). The surfaces of the upper vibratory plate (141) and the lower vibratory plate (142) are provided with sieve holes (147). The lower vibratory plate (142) includes a vibratory plate (14) cooling component and a compensation cavity (145). The upper end of the sieve box (12) is provided with a rubber scrap particle blocking assembly (2). The rubber scrap particle blocking assembly (2) includes a blocking cover (21) with a feed inlet (23) and a wind-powered cooling assembly.

2. A device for separating rubber offcut particles according to claim 1, characterised in that, The cooling component of the vibratory plate (14) includes a liquid cooling pipe (143) disposed at the bottom of the lower vibratory plate (142). The liquid cooling pipe (143) is a serpentine copper pipe. The inlet and outlet of the liquid cooling pipe (143) are respectively provided with connecting pipes (144). The connecting pipes (144) are corrugated hoses. The connecting pipes (144) are connected to an external cold source.

3. A device for separating rubber offcut particles according to claim 2, characterised in that, The liquid cooling pipe (143) is installed on the bottom side of the lower vibrating plate (142) by clamps. The compensation cavity (145) is opened on the surface of the lower vibrating plate (142). The compensation cavity (145) is offset from the liquid cooling pipe (143). Several baffles (146) are fixed inside the compensation cavity (145).

4. A device for separating rubber offcut particles according to claim 3, wherein, Several baffles (146) are equidistantly arranged in the compensation cavity (145), which is pre-filled with coolant / water and is a closed design.

5. A device for separating rubber offcut particles according to claim 4, characterised in that, The upper vibrating plate (141) and the lower vibrating plate (142) are connected by screws, and the positions of the sieve holes (147) opened on the upper vibrating plate (141) and the lower vibrating plate (142) are consistent.

6. A device for separating rubber offcut particles according to claim 5, wherein, The blocking cover (21) is a conical design. The blocking cover (21) is connected to the sieve box (12) by screws. A sealing strip (26) is provided between the bottom of the blocking cover (21) and the sieve box (12).

7. The device for separating rubber scrap particles according to claim 6, characterized in that, The vibratory plate (14) is made of either aluminum alloy or copper alloy, and the inner wall of the shield (21) and the surface of the vibratory plate (14) are coated with polytetrafluoroethylene.

8. The device for separating rubber scrap particles according to claim 7, characterized in that, The wind-powered cooling component includes a housing (22) and a fan (24). The housing (22) has a U-shaped cross-section. The housing (22) is inverted on top of the baffle (21) and fixedly connected to the baffle (21). The fan (24) is located on the inner top of the housing (22) and is an axial flow fan (24).

9. A device for separating rubber offcut particles according to claim 8, characterised in that, The outer top of the outer shell (22) is provided with a ventilation slot (25), the front side of the fan (24) is provided with a steel mesh, the steel mesh is screwed to the bottom of the outer shell (22), and the feed port (23) is opened on the left or right side of the baffle (21).

10. A device for separating rubber offcut particles according to claim 9, characterised in that, The vibration motors (15) are symmetrically arranged on the left and right sides of the screen box (12), and the two vibration motors (15) are of the same model and work synchronously. A spring damper or damping spring is provided between the support frame (11) and the screen box (12).

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