EPDM rubber particle processing device and processing method thereof

Abstract

The invention discloses an EPDM (Ethylene-Propylene-Diene Monomer) rubber particle processing device and a processing method thereof, and the EPDM rubber particle processing device comprises a cold water tank, the fixed cylinder is fixedly connected to the surface of the cold water tank in a sleeving mode, an air cylinder is coaxially and fixedly connected to the bottom of the fixed cylinder in an inserted mode, spiral blades are fixedly arranged on the circumferential surface of the air cylinder, and first air outlet holes are formed in the circumferential side wall of the air cylinder. The heat exchange efficiency with rubber particles is improved, the cooling time is greatly shortened, the production efficiency is remarkably improved, and the large-scale production requirement is met; by means of the spiral blades and air drying, on one hand, rubber particles can be arranged in a layered mode, automatic and efficient separation and drying of water and the rubber particles are conveniently achieved, on the other hand, contact between the rubber particles and air is increased, and the drying speed of the rubber particles is increased.

Description

Technical Field

[0001] The invention relates to the technical field of rubber processing, in particular to an EPDM rubber particle processing device and a processing method thereof. Background Art

[0002] The EPDM rubber particles produced by the granulator need to be cooled quickly to facilitate the molding of EPDM elastomer rubber particles; however, the current EPDM rubber particles mainly have the following problems during the cooling and molding process: the EPDM rubber particles produced by the granulator are stacked together, resulting in uneven cooling of the EPDM rubber particles, affecting the molding effect of the EPDM rubber particles. Therefore, an EPDM rubber particle processing device and a processing method thereof are proposed to solve this problem. Summary of the invention

[0003] The present invention aims at the deficiencies in the prior art and provides the following technical solutions:

[0004] EPDM rubber granule processing device, including:

[0005] A cold water tank, wherein the bottom of the cold water tank is open;

[0006] A fixed cylinder is fixedly sleeved on the surface of the cold water tank, an air cylinder is coaxially fixedly inserted at the bottom of the fixed cylinder, a spiral blade is fixedly arranged on the circumferential surface of the air cylinder, an air outlet hole 1 is opened on the circumferential side wall of the air cylinder, the inner wall of the fixed cylinder and the outer wall of the air cylinder cooperate to form a drainage cavity, and the spiral blade forms a spiral channel in the drainage cavity;

[0007] A water tank, containing cooling water, is fixedly sleeved on the lower half of the fixed cylinder, and a water inlet pipe is provided between the water tank and the cold water tank;

[0008] A driving assembly, the driving assembly includes a cylinder fixedly arranged on the top of the cold water tank and a moving part slidably arranged in the cylinder, the bottom of the moving part sequentially passes through the bottom of the cylinder and the top of the cold water tank and extends into the cold water tank, one end of the moving part extending into the cold water tank is fixedly connected to a bottom plate adapted to the bottom of the cold water tank, and a connecting pipe is arranged on the side wall of the cylinder and is located above the moving part and connected to the top of the side wall of the cold water tank.

[0009] As an improvement of the above technical solution, the spiral blade has a receiving cavity, and a plurality of water filtering holes communicating with the receiving cavity are provided on the top of the spiral blade.

[0010] As an improvement of the above technical solution, a filter screen is arranged in the cold water tank and below the connecting pipe.

[0011] As an improvement of the above technical solution, the movable part includes a piston slidably arranged inside the cylinder and a movable rod fixedly arranged at the bottom of the piston, the bottom of the movable rod is fixedly connected to the bottom plate, and the surface of the movable rod is located between the piston and the bottom of the inner wall of the cylinder and is wrapped with a spring.

[0012] As an improvement on the above technical solution, a partition is fixedly arranged inside the air cylinder and below the spiral blade, and the partition divides the air cylinder cavity into chamber one and chamber two from top to bottom in sequence; a fixed tube is movably inserted in the air cylinder, the top of the fixed tube passes through the top of the air cylinder and extends to the outside of the air cylinder, one end of the fixed tube extending to the outside of the air cylinder is fixedly connected to the bottom plate, the bottom of the fixed tube passes through the partition and the bottom of the air cylinder in sequence and extends to the outside of the air cylinder, and one end of the fixed tube extending to the outside of the air cylinder is fixedly inserted with a delivery pipe, a plurality of groups of air outlet holes 2 are provided on the surface of the fixed tube and located inside chamber one, a sliding plate is fixedly sleeved on the surface of the fixed tube and located in chamber two, an air outlet pipe is arranged on one side of the bottom of the air cylinder and connected to the water tank, and an air inlet pipe is arranged on the other side of the bottom of the air cylinder, and a one-way valve is arranged between the air outlet pipe and the air inlet pipe.

[0013] The processing method of the EPDM rubber particle processing device: using the EPDM rubber particle processing device described above, comprising the following steps:

[0014] S1: Put the rubber particles to be cooled into a cold water tank, and use a water pump to pump the cooling water in the water tank into the cold water tank, so that the rubber particles are fully in contact with the cooling water;

[0015] S2: As the water in the cold water tank increases, the water level rises, and part of the water flows into the cylinder through the connecting pipe. When the water pressure in the cylinder exceeds the set pressure of the moving part, the moving part slides downward under the action of the water pressure, and the moving part drives the bottom plate to move downward in the cold water tank. During this process, the water and rubber particles in the cold water tank will fall onto the spiral blades in the fixed cylinder, and the rubber particles and water move on the spiral blades. The water and rubber particles are separated under the guidance of gravity and the spiral blades.

[0016] S3: The gas is discharged from the gas outlet holes on the circumferential side wall of the gas cylinder, and the gas flow accelerates the evaporation of water on the surface of the rubber particles, thereby completing the efficient separation of the rubber particles and water.

[0017] Beneficial effects of the present invention:

[0018] By conveying the rubber particles into the cold water tank and soaking them in cold water, the heat exchange efficiency with the rubber particles is accelerated, the cooling time is greatly shortened, and the production efficiency is significantly improved to meet the needs of large-scale production;

[0019] With the help of spiral blades and gas drying, on the one hand, the rubber particles can be arranged in layers, which facilitates the automatic and efficient separation and drying of water and rubber particles. On the other hand, it increases the contact between rubber particles and air and improves the drying speed of rubber particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is the front view of the overall structure of the present invention;

[0021] Figure 2 For the present invention Figure 1 The enlarged structural diagram at A in the middle;

[0022] Figure 3 It is a schematic diagram of the internal structure of the cold water tank of the present invention.

[0023] Figure numerals: 10, cold water tank; 11, filter; 12, bottom plate; 20, fixed cylinder; 21, air cylinder; 211, air outlet hole 1; 212, partition; 213, air inlet pipe; 214, air outlet pipe; 22, spiral blade; 30, fixed pipe; 301, sliding plate; 31, air outlet hole 2; 40, driving assembly; 41, cylinder; 42, connecting pipe; 43, piston; 44, movable rod; 45, spring; 50, water tank; 51, water inlet pipe; 60, delivery pipe. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] Embodiment 1

[0026] The EPDM rubber particle processing device comprises: a cold water tank 10, wherein the bottom of the cold water tank 10 is open;

[0027] A fixed cylinder 20 is fixedly sleeved on the surface of the cold water tank 10, and an air cylinder 21 is coaxially fixedly inserted at the bottom of the fixed cylinder 20. A spiral blade 22 is fixedly arranged on the circumferential surface of the air cylinder 21. An air outlet hole 211 is provided on the circumferential side wall of the air cylinder 21. The inner wall of the fixed cylinder 20 and the outer wall of the air cylinder 21 cooperate to form a drainage cavity. The spiral blade 22 forms a spiral channel in the drainage cavity. The spiral blade 22 has a receiving cavity, and a plurality of water filtering holes connected to the receiving cavity are provided on the top of the spiral blade 22;

[0028] A water tank 50, containing cooling water, is fixedly sleeved on the lower half of the fixed cylinder 20, and a water inlet pipe 51 is provided between the water tank 50 and the cold water tank 10;

[0029] A driving component 40 includes a cylinder 41 fixedly arranged on the top of the cold water tank 10 and a moving part slidably arranged in the cylinder 41, the bottom of the moving part sequentially passes through the bottom of the cylinder 41 and the top of the cold water tank 10 and extends into the cold water tank 10, one end of the moving part extending into the cold water tank 10 is fixedly connected to a bottom plate 12 adapted to the bottom of the cold water tank 10, and a connecting pipe 42 is arranged on the side wall of the cylinder 41 and is located above the moving part and is connected to the top of the side wall of the cold water tank 10.

[0030] Specifically, the EPDM rubber particles to be cooled are placed in the cold water tank 10, and the cooling water in the water tank 50 is pumped into the cold water tank 10 by a water pump, so that the rubber particles are fully in contact with the cooling water. The cooling water absorbs the heat of the rubber particles through heat exchange, thereby realizing the cooling and shaping of the rubber particles. As the water in the cold water tank 10 increases, the water level rises, and part of the water flows into the cylinder 41 through the connecting pipe 42. When the water pressure in the cylinder 41 exceeds the set pressure of the moving part, the moving part slides downward under the action of the water pressure, converting the water level change into a mechanical action to control the release rhythm of the particles. Since the bottom of the moving part is fixedly connected to the bottom plate 12, the moving part drives the bottom plate 12 to move downward in the cold water tank 10. In this process, the water and rubber particles in the cold water tank 10 The particles will fall onto the spiral blade 22 in the fixed cylinder 20, and the rubber particles and water move on the spiral blade 22. The water and rubber particles are initially separated under the guidance of gravity and the spiral blade. The water enters the containing cavity through the water filter hole at the top of the spiral blade 22, and then flows further downward along the containing cavity to achieve the separation of water and rubber particles. At the same time, the air outlet hole 211 on the circumferential side wall of the air cylinder 21 discharges gas, and the air flow accelerates the evaporation of water on the surface of the rubber particles, further achieving drainage, preventing secondary adhesion, and completing the efficient separation of rubber particles and water. Through the continuous operation of the driving component 40, the bottom plate 12 is continuously pushed up and down to achieve the circulation of water and the continuous cooling, transportation and drainage of rubber particles, thereby completing the continuous processing of EPDM rubber particles. Among them, the interior of the spiral blade 22 is connected to the interior of the water tank 50, so that the drained water is supplemented into the water tank 50 to ensure the recycling of cooling water. Through gravity sedimentation (first level) plus water filter hole interception (second level) plus air blowing (third level), the dehydration efficiency is increased by 3 times.

[0031] In one embodiment, a filter screen 11 is provided in the cold water tank 10 and below the connecting pipe 42, and a feed hopper is provided on the top of the cold water tank 10. The bottom of the feed hopper passes through the filter screen 11, so that the rubber particles are located below the filter screen 11, which can ensure that the rubber particles fully penetrate into the water.

[0032] In one embodiment, the movable member includes a piston 43 slidably arranged inside the cylinder 41 and a movable rod 44 fixedly arranged at the bottom of the piston 43, the bottom of the movable rod 44 is fixedly connected to the bottom plate 12, and the surface of the movable rod 44 is located between the piston 43 and the bottom of the inner wall of the cylinder 41 and is wound with a spring 45. When the amount of water flowing into the cylinder 41 increases, the water pressure increases and exceeds the elastic force of the spring 45, the piston 43 is pushed downward by the water pressure to drive the movable rod 44 and the bottom plate 12 connected thereto to move downward in the cold water tank 10, so that the bottom of the cold water tank 10 is opened, and the cold water tank 10 is opened. The water and rubber particles fall onto the spiral blades 22 in the fixed cylinder 20. When the bottom plate 12 moves downward, the water in the cold water tank 10 enters the fixed cylinder 20. When the water pressure in the cylinder 41 is reduced to the elastic force of the spring 45, the spring 45 pushes the piston 43 to move upward under the action of the restorative elastic force of the spring 45, and pushes the residual water in the cylinder 41 back into the cold water tank 10. The upward movement of the piston 43 will cause the movable rod 44 to move upward, and the movable rod 44 drives the bottom plate 12 to re-seal the bottom of the cold water tank 10 for the next round of cooling of the rubber particles, wherein the movable rod 44 is movably connected to the filter screen 11.

[0033] In one embodiment, a partition 212 is fixedly arranged in the air cylinder 21 and below the spiral blade 22. The partition 212 divides the cavity of the air cylinder 21 into chamber 1 and chamber 2 from top to bottom. A fixed pipe 30 is movably inserted in the air cylinder 21. The top of the fixed pipe 30 passes through the top of the air cylinder 21 and extends to the outside of the air cylinder 21. One end of the fixed pipe 30 extending to the outside of the air cylinder 21 is fixedly connected to the bottom plate 12. The bottom of the fixed pipe 30 passes through the partition 212 and the bottom of the air cylinder 21 in sequence and extends To the outside of the air cylinder 21, one end of the fixed pipe 30 extending to the outside of the air cylinder 21 is fixedly plugged with a delivery pipe 60, a plurality of groups of air outlet holes 31 are opened on the surface of the fixed pipe 30 and located inside the chamber 1, a sliding plate 301 is fixedly sleeved on the surface of the fixed pipe 30 and located inside the chamber 2, an air outlet pipe 214 is arranged between one side of the bottom of the air cylinder 21 and the water tank 50, an air inlet pipe 213 is arranged on the other side of the bottom of the air cylinder 21, and a one-way valve is arranged between the air outlet pipe 214 and the air inlet pipe 213;

[0034] Specifically, the delivery pipe 60 delivers the gas to the fixed pipe 30, and the gas enters the chamber 1 through the air outlet 211, and then flows out through the air outlet 211 to dry the rubber particles on the spiral blade 22. When the bottom plate 12 moves downward, in this process, since the fixed pipe 30 is fixedly connected to the bottom plate 12, the downward movement of the bottom plate 12 will drive the fixed pipe 30 to move downward in the air cylinder 21. When the fixed pipe 30 moves downward, the space under the sliding plate 301 is compressed, and the compressed gas enters the water tank 50 through the air outlet pipe 214 to pressurize the water tank. When the bottom plate 12 moves upward, the fixed pipe 30 moves downward in the air cylinder 21. When the sliding plate 301 is moved upward, the space below the sliding plate 301 increases, forming a relatively negative pressure state. At this time, the one-way valve on the air inlet pipe 213 is opened, and the external air enters through the air inlet pipe 213, and the pressurized water is pumped into the cold water tank 10. The kinetic energy increases during the flow process, and it can absorb heat more quickly when in contact with the rubber particles, thereby accelerating the heat exchange efficiency. Among them, when the fixed tube 30 is in the downward state, the second set of air outlet holes 31 at the bottom of the fixed tube 30 is still at a certain distance from the partition 212 to ensure that the second air outlet holes 31 will not enter the chamber two.

[0035] Embodiment 2

[0036] The processing method of the EPDM rubber particle processing device adopts the EPDM rubber particle processing device recorded in Example 1, comprising the following steps:

[0037] S1: putting the rubber particles to be cooled into the cold water tank 10, and using a water pump to pump the cooling water in the water tank 50 into the cold water tank 10, so that the rubber particles are fully in contact with the cooling water;

[0038] S2: As the water in the cold water tank 10 increases, the water level rises, and part of the water flows into the cylinder 41 through the connecting pipe 42. When the water pressure in the cylinder 41 exceeds the set pressure of the moving part, the moving part slides downward under the action of the water pressure, and the moving part drives the bottom plate 12 to move downward in the cold water tank 10. During this process, the water and rubber particles in the cold water tank 10 will fall onto the spiral blade 22 in the fixed cylinder 20, and the rubber particles and water move on the spiral blade 22. The water and rubber particles are separated under the guidance of gravity and the spiral blade;

[0039] S3: The gas is discharged from the gas outlet hole 211 on the circumferential side wall of the gas cylinder 21, and the gas flow accelerates the evaporation of water on the surface of the rubber particles, thereby completing the efficient separation of the rubber particles and water.

[0040] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. EPDM rubber particle processing device, characterized in that: include: A cold water tank (10), wherein the bottom of the cold water tank (10) is open; A fixed cylinder (20) is fixedly sleeved on the surface of the cold water tank (10), an air cylinder (21) is coaxially fixedly inserted into the bottom of the fixed cylinder (20), a spiral blade (22) is fixedly arranged on the circumferential surface of the air cylinder (21), an air outlet hole (211) is opened on the circumferential side wall of the air cylinder (21), the inner wall of the fixed cylinder (20) and the outer wall of the air cylinder (21) cooperate to form a drainage cavity, and the spiral blade (22) forms a spiral channel in the drainage cavity; A water tank (50) containing cooling water is fixedly sleeved on the lower half of the fixed cylinder (20); a water inlet pipe (51) is provided between the water tank (50) and the cold water tank (10); A driving assembly (40), the driving assembly (40) comprising a cylinder (41) fixedly arranged on the top of the cold water tank (10) and a moving part slidably arranged in the cylinder (41), the bottom of the moving part sequentially passing through the bottom of the cylinder (41) and the top of the cold water tank (10) and extending into the cold water tank (10), one end of the moving part extending into the cold water tank (10) is fixedly connected to a bottom plate (12) adapted to the bottom of the cold water tank (10), and a connecting pipe (42) is arranged on the side wall of the cylinder (41) and is located above the moving part and is connected to the top of the side wall of the cold water tank (10).

2. The EPDM rubber particle processing device according to claim 1, characterized in that: The spiral blade (22) has a receiving cavity, and a plurality of groups of water filtering holes communicating with the receiving cavity are arranged on the top of the spiral blade (22).

3. The EPDM rubber particle processing device according to claim 1, characterized in that: A filter screen (11) is arranged inside the cold water tank (10) and below the connecting pipe (42).

4. The EPDM rubber particle processing device according to claim 1, characterized in that: The movable member comprises a piston (43) slidably arranged inside the cylinder (41) and a movable rod (44) fixedly arranged at the bottom of the piston (43); the bottom of the movable rod (44) is fixedly connected to the bottom plate (12); and a spring (45) is wound around the surface of the movable rod (44) and is located between the piston (43) and the bottom of the inner wall of the cylinder (41).

5. The EPDM rubber particle processing device according to claim 1, characterized in that: A partition (212) is fixedly arranged inside the air cylinder (21) and below the spiral blade (22), and the partition (212) divides the cavity of the air cylinder (21) into chamber one and chamber two from top to bottom in sequence. A fixed pipe (30) is movably inserted into the air cylinder (21), and the top of the fixed pipe (30) passes through the top of the air cylinder (21) and extends to the outside of the air cylinder (21). One end of the fixed pipe (30) extending to the outside of the air cylinder (21) is fixedly connected to the bottom plate (12), and the bottom of the fixed pipe (30) passes through the partition (212) and the bottom of the air cylinder (21) in sequence and extends to the air cylinder. The fixed tube (30) is located outside the air cylinder (21), and one end of the fixed tube (30) extending to the outside of the air cylinder (21) is fixedly connected with a delivery tube (60), and a plurality of groups of air outlet holes (31) are provided on the surface of the fixed tube (30) and located inside the chamber one, and a sliding plate (301) is fixedly sleeved on the surface of the fixed tube (30) and located inside the chamber two, and an air outlet pipe (214) is provided on one side of the bottom of the air cylinder (21) and connected to the water tank (50), and an air inlet pipe (213) is provided on the other side of the bottom of the air cylinder (21), and a one-way valve is provided between the air outlet pipe (214) and the air inlet pipe (213).

6. The processing method of the EPDM rubber particle processing device is characterized by: Using the EPDM rubber particle processing device as described in any one of claims 1 to 5, The following steps are included: S1: placing the rubber particles to be cooled into a cold water tank (10), and using a water pump to pump the cooling water in the water tank (50) into the cold water tank (10), so that the rubber particles are in full contact with the cooling water; S2: As the amount of water in the cold water tank (10) increases, the water level rises, and part of the water flows into the cylinder (41) through the connecting pipe (42). When the water pressure in the cylinder (41) exceeds the set pressure of the moving part, the moving part slides downward under the action of the water pressure, and the moving part drives the bottom plate (12) to move downward in the cold water tank (10). During this process, the water and rubber particles in the cold water tank (10) fall onto the spiral blades (22) in the fixed cylinder (20), and the rubber particles and water move on the spiral blades (22). The water and rubber particles are separated under the guidance of gravity and the spiral blades (22); S3: The gas is discharged from the gas outlet hole (211) on the circumferential side wall of the gas cylinder (21), and the gas flow accelerates the evaporation of water on the surface of the rubber particles, thereby achieving efficient separation of the rubber particles and water.

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