Hydraulic conveying mechanism for TPV elastomer particles

Abstract

The utility model relates to a hydraulic conveying mechanism for TPV elastomer particles, and relates to the field of water ring pelletizers, the hydraulic conveying mechanism comprises a driving water pump, a pressure water pipe and a particle conveying pipe, the driving water pump is connected with the pressure water pipe so as to provide a pressure water source for the pressure water pipe, and the particle conveying pipe is connected with the pressure water pipe; the pressure water pipe and the particle conveying pipe are both connected with a pelletizing water chamber of the TVP elastomer pelletizing machine so that a pressure water source can be conveyed into the pelletizing water chamber, TPV elastomer particles in the pelletizing water chamber are pushed into the particle conveying pipe through hydraulic power and conveyed to an external particle-water separation device through the particle conveying pipe, and the TPV elastomer particles are conveyed into the pelletizing water chamber through the particle conveying pipe. A conveying pipe elbow is arranged on the particle conveying pipe, a spraying water pipe facing the water outlet end of the pipe cavity is arranged on the large elbow side of the conveying pipe elbow, the other end of the spraying water pipe is connected with the pressure water pipe, and the hydraulic conveying effect of the TPV elastomer particles can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of water ring pelletizer, in particular to a TPV elastomer particle hydraulic conveying mechanism. BACKGROUND

[0002] Thermoplastic vulcanized rubber, referred to as TPV, is mainly composed of two parts, one is plastic as a continuous phase, and the other is rubber as a dispersed phase, which has excellent dynamic fatigue resistance, high tear resistance, excellent weather resistance, good wear resistance, and outstanding flame retardant and ultraviolet resistance. It has excellent corrosion resistance to water-based acid and alkali liquids and polar oil products, and has been widely used in automobile parts, electronics and electrical appliances, sports equipment, wire and cable industries.

[0003] TPV material is usually processed into elastomer particles first, and then the elastomer particles are used as raw materials for finished product processing. When processing TPV elastomer, the TPV material is heated to a molten state in the extruder, continuously extruded through the extrusion holes on the extrusion die into the water chamber, and then cut off by the pelletizer. The cut-off molten material is rapidly cooled and solidified in water to form TPV elastomer particles, which are transported out by the flowing water.

[0004] The existing TPV elastomer particle hydraulic conveying mechanism usually enters water from the top of the water chamber and flows out from the bottom of the water chamber. Because the volume of the water chamber is large, the water flow in the water chamber is slow, and the water flow is usually concentrated in the middle of the water chamber. The deposition of TPV elastomer particles is prone to occur in the peripheral part of the water chamber. In order to ensure the smooth conveying of a large amount of particles, the diameter of the conveying pipe for conveying the particle-water mixture is usually large, which can easily cause the water flow velocity in the central part of the pipe to be large, and the water flow velocity in the peripheral part of the pipe to be small, affecting the conveying of TPV elastomer particles deposited in the pipe. In particular, in the pipe turning part, the inertia of the water flow can cause the water flow in the small bending side of the pipe to decrease, which can easily cause TPV elastomer particles to accumulate in the small bending part of the pipe, affecting the hydraulic conveying effect of TPV elastomer particles. CONTENT OF THE UTILITY MODEL

[0005] In order to improve the hydraulic conveying effect of TPV elastomer particles, the present application provides a TPV elastomer particle hydraulic conveying mechanism.

[0006] The hydraulic conveying mechanism of the TPV elastomer particles provided in the application comprises a driving water pump, a pressure water pipe and a particle conveying pipe, the driving water pump is connected with the pressure water pipe to provide a pressure water source to the pressure water pipe, the pressure water pipe and the particle conveying pipe are both connected with a cutting water chamber of a TPV elastomer cutting machine to convey the pressure water source to the cutting water chamber, the TPV elastomer particles in the cutting water chamber are pushed to the particle conveying pipe by the hydraulic force, and then conveyed to an external particle-water separation device through the particle conveying pipe, a conveying pipe elbow is arranged on the particle conveying pipe, a jet water pipe is arranged on the large bending side of the conveying pipe elbow and faces the water outlet end of the pipe cavity, and the other end of the jet water pipe is connected with the pressure water pipe.

[0007] Preferably, an electromagnetic switch valve is arranged on the jet water pipe to open the gap.

[0008] Further preferably, the water outlet of the jet water pipe is located on one side of the lower part of the water outlet end pipe cavity adjacent to the water inlet.

[0009] Preferably, the pressure water pipe is connected to one side of the top of the cutting water chamber, and the particle conveying pipe is connected to the bottom of the cutting water chamber.

[0010] Further preferably, the connecting port of the pressure water pipe to the cutting water chamber faces the center of the cutting water chamber, the connecting port of the particle conveying pipe to the cutting water chamber faces one side of the cutting water chamber, and the connecting port of the pressure water pipe to the cutting water chamber faces the same side of the cutting water chamber.

[0011] Preferably, a water flow stirring device is arranged in the pipe cavity of the particle conveying pipe.

[0012] Further preferably, the water flow stirring device is a plurality of spiral flow guide vanes arranged at the top of the pipe cavity of the particle conveying pipe.

[0013] Preferably, the water flow stirring device is a flow guide spiral ring arranged on the inner wall of the pipe cavity of the particle conveying pipe.

[0014] Preferably, the hydraulic conveying mechanism of the TPV elastomer particles of the application further comprises a circulating water tank, a filter screen is arranged at the opening of the circulating water tank, the particle-water separation device is arranged above the opening of the circulating water tank, and the water inlet of the driving water pump is connected with the circulating water tank.

[0015] Further preferably, a partitioning filter plate is arranged in the middle of the circulating water tank to divide the circulating water tank into two parts, the particle-water separation device is arranged above the opening of one part, and the water inlet of the driving water pump is connected with the other part.

[0016] The hydraulic conveying mechanism of the TPV elastomer particles of the present application comprises at least one of the following beneficial technical effects:

[0017] 1. By setting the jet water pipe on the large bend side of the conveying pipe elbow, the jet water flow can be introduced from the pressure water pipe to jet the small bend side of the conveying pipe elbow, prevent the accumulation of TPV elastomer particles on the small bend side of the conveying pipe elbow, and improve the conveying effect of TPV elastomer particles at the bending part of the particle conveying pipe.

[0018] 2. By setting the gap opening electromagnetic switch valve on the jet water pipe, the bending part of the particle conveying pipe can be gap hydraulically jetted, on the one hand to push the accumulated TPV elastomer particles at the small bend to normal transmission, and on the other hand to reduce the loss of water flow in the pressure water pipe, and ensure the hydraulic conveying flow to the cutting water chamber.

[0019] 3. By connecting the pressure water pipe to one side of the top of the cutting water chamber, and connecting the particle conveying pipe 3 to the bottom of the cutting water chamber 4, and connecting the connecting port to the same side of the cutting water chamber, a water flow rotating along the edge of the cutting water chamber can be formed inside the cutting water chamber, which is beneficial to push the TPV elastomer particles settled after being cut by the cutter in the middle of the cutting water chamber to the connecting port of the particle conveying pipe 3, and then conveyed out through the inclined connecting port, reducing the accumulation of TPV elastomer particles at the edge of the cutting water chamber.

[0020] 4. By spacing a plurality of spiral flow guides on the top of the particle conveying pipe lumen, the water flow flowing in the particle conveying pipe can be guided, while not blocking the forward conveying of TPV elastomer particles, a rotating water flow is formed at the lower part of the particle conveying pipe lumen, which forms a lateral pushing force on the TPV elastomer particles, preventing the deposition of TPV elastomer particles at the bottom of the lumen, and improving the hydraulic conveying effect of TPV elastomer particles. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The schematic diagram of an embodiment of the present application.

[0022] Figure 2 The schematic diagram of the structure of the particle conveying pipe elbow part in an embodiment of the present application.

[0023] Figure 3 The schematic diagram of the setting position of the jet water pipe in an embodiment of the present application.

[0024] Figure 4 The schematic diagram of the connection structure of the pressure water pipe and the particle conveying pipe with the cutting water chamber in an embodiment of the present application.

[0025] Figure 5 The schematic diagram of the internal structure of the particle conveying pipe in an embodiment of the present application.

[0026] Explanation of reference signs: 1, driving water pump; 2, pressure water pipe; 3, pellet conveying pipe; 31, conveying pipe elbow; 32, spiral guide vane; 4, pelletizing water chamber; 5, pellet-water separation device; 6, jet water pipe; 61, electromagnetic on-off valve; 7, circulating water tank; 71, filter screen; 72, partition filter plate. DETAILED DESCRIPTION

[0027] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended to illustrate and explain the present application, and are not intended to limit the present application.

[0028] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "arranged", "connected" should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or can be integrally connected; can be directly connected, or can be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] One embodiment of the water power conveying mechanism of the TPV elastomer pellets of the present application, as shown in Figures 1 to 3 includes a driving water pump 1, a pressure water pipe 2 and a pellet conveying pipe 3. The driving water pump 1 can use various suitable water pumps, the water inlet of the driving water pump 1 is connected with a water source, and the water outlet is connected with the pressure water pipe 2, which is used to pump water into the pressure water pipe 2 to provide a carrier for conveying the TPV elastomer pellets.

[0030] The other end of the pressure water pipe 2 is connected with the pelletizing water chamber 4 of the TPV elastomer pelletizer, which is used to convey water in the pelletizing water chamber 4 so that the water fills the pelletizing water chamber 4. After the molten TPV elastomer material enters the pelletizing water chamber 4 through the extrusion die plate, it rapidly solidifies under the cooling action of water and is cut off by the cutter of the pelletizer to form TPV elastomer pellets. The TPV elastomer pellets are further cooled and solidified in water to prevent adhesion between the TPV elastomer pellets. The pellet conveying pipe 3 is connected with the pelletizing water chamber 4, usually connected in the lower region of the pelletizing water chamber 4, the water in the pelletizing water chamber 4 flows out through the pellet conveying pipe 3 under the action of pressure, so that the TPV elastomer pellets in the pelletizing water chamber 4 also flow into the pellet conveying pipe 3 with the water flow, and are conveyed in the pellet conveying pipe 3 by the water power. The connection of the pellet conveying pipe 3 at the bottom region of the pelletizing water chamber 4 is beneficial to the TPV elastomer pellets gradually sinking in water to enter the pellet conveying pipe 3 and be discharged, preventing the accumulation of TPV elastomer pellets in the pelletizing water chamber 4.

[0031] The other end of the particle conveying pipe 3 is connected to the external particle-water separation device 5, and the water stream mixed with the TPV elastomer particles is conveyed into the particle-water separation device 5. The water is discharged from the water outlet below the particle-water separation device 5, and the TPV elastomer particles are discharged from the particle outlet of the particle-water separation device 5 and subjected to subsequent process.

[0032] A conveying pipe elbow 31 is arranged at the pipe bend of the particle conveying pipe 3. A jet water pipe 6 is arranged at the large-bend side of the conveying pipe elbow 31, i.e. the outer side of the bending part. The jet water pipe 6 is arranged in the pipe cavity of the conveying pipe elbow 31, and the jet water pipe 6 is arranged to have its water outlet directed to the water flow direction of the conveying pipe elbow 31. The other end of the jet water pipe 6 is connected to the pressure water pipe 2, and the jet water pipe 6 is arranged to introduce the high-pressure water stream in the pressure water pipe 2 into the conveying pipe elbow 31 to generate a high-speed impact water stream, which can wash away the TPV elastomer particles accumulated in the local area due to the slow water flow caused by the water flow turning, and ensure the hydraulic conveying effect of the TPV elastomer particles.

[0033] In a preferred embodiment of the TPV elastomer particle hydraulic conveying mechanism of the present application, as shown in Figure 1 and Figure 2 , an electromagnetic switch valve 61 is arranged on the jet water pipe 6 between the pressure water pipe 2 and the particle conveying pipe 3. The electromagnetic switch valve 61 is usually a normally closed switch valve, which can be intermittently opened under the control of the control device. When the electromagnetic switch valve 61 is opened, part of the high-pressure water stream in the pressure water pipe 2 is jetted into the conveying pipe elbow 31 through the jet water pipe 6 to impact and clean the TPV elastomer particles accumulated in the pipe cavity. When the electromagnetic switch valve 61 is closed, all the high-pressure water stream in the pressure water pipe 2 flows into the particle cutting water chamber 4 to ensure sufficient water stream supply in the particle cutting water chamber 4.

[0034] In a preferred embodiment of the TPV elastomer particle hydraulic conveying mechanism of the present application, as shown in Figure 2 and Figure 3 , the jet water pipe 6 is arranged on the conveying pipe elbow 31. The jet water pipe 6 is arranged on the lower side of the pipe cavity of the conveying pipe elbow 31 and close to the small-bend side, i.e. the inner side of the bending direction. The water outlet of the jet water pipe 6 is directed to the lower part of the outlet pipe cavity of the conveying pipe elbow 31 close to the water inlet side, so that the water stream jetted from the water outlet of the jet water pipe 6 is directed to the area where the TPV elastomer particles are easily accumulated due to the water flow turning.

[0035] In an embodiment of the TPV elastomer particle hydraulic conveying mechanism of the present application, as shown in Figure 4As shown, the connecting position of the pressure water pipe 2 on the cutting water chamber 4 is located at the top of the cutting water chamber 4, and is deviated to one side of the cutting water chamber 4, so that the water flow flowing into the cutting water chamber 4 through the pressure water pipe 2 is deviated to the side wall of the cutting water chamber 4 on one side, and a rotating flow along the side wall is formed in the cutting water chamber 4, preventing the deposition of TPV elastomer particles on the side wall of the cutting water chamber 4.

[0036] The connecting position of the particle conveying pipe 3 on the cutting water chamber 4 is located at the bottom of the cutting water chamber 4, so that the water flow in the cutting water chamber 4 flows out from the bottom of the cutting water chamber 4. Since the density of the TPV elastomer particles is generally slightly greater than the density of water, the TPV elastomer particles will gradually settle in water and concentrate in the bottom area of the cutting water chamber 4. The connection of the particle conveying pipe 3 at the bottom of the cutting water chamber 4 is more conducive to the discharge of the TPV elastomer particles from the cutting water chamber 4 into the particle conveying pipe 3 for hydraulic conveying.

[0037] In a preferred embodiment of the hydraulic conveying mechanism of the TPV elastomer particles of the present application, as shown in Figure 4 The connecting port of the pressure water pipe 2 on the cutting water chamber 4 is directed to the center of the cutting water chamber 4, and the water flow flowing in through the pressure water pipe 2 flows through the center of the cutting water chamber 4 to the side on the opposite side, and flows downward along the side wall on the opposite side.

[0038] The connecting port of the particle conveying pipe 3 on the cutting water chamber 4 is deviated to the side of the cutting water chamber 4 opposite to the connecting port of the pressure water pipe 2 at the bottom of the cutting water chamber 4. Specifically, the particle conveying pipe 3 extends to the cutting water chamber 4 from the same side as the pressure water pipe 2, and is connected to the bottom of the cutting water chamber 4 with an upward inclination, and the opening is inclined to the other side of the cutting water chamber 4, which is conducive to the water flow flowing downward along the side wall of the cutting water chamber 4 entering the particle conveying pipe 3, and pushing the TPV elastomer particles in the water into the particle conveying pipe 3 for hydraulic conveying in the particle conveying pipe 3.

[0039] In some embodiments of the hydraulic conveying mechanism of the TPV elastomer particles of the present application, as shown in Figure 5 The particle conveying pipe 3 is provided with a water flow stirring device in the lumen thereof, which can use various devices capable of stirring the water flow flowing in the particle conveying pipe 3 to prevent the deposition of TPV elastomer particles in the water flow, such as water rotating blades, impellers or helical guide vanes, etc. The water flow stirring device can destroy the laminar flow in the particle conveying pipe 3, prevent the water flow speed at the pipe wall from being too low to affect the conveying force of the TPV elastomer particles at the pipe wall, and improve the conveying effect of the TPV elastomer particles in water.

[0040] In a preferred embodiment of the hydraulic conveying mechanism of the TPV elastomer particles of the present application, as shown in Figure 5As shown, multiple spiral guide vanes 32 are installed at the top of the cavity of the particle conveying pipe 3 as a water flow agitation device. These spiral guide vanes 32 have the same direction of rotation and are arranged at equal intervals on the inner wall of the top of the cavity of the particle conveying pipe 3, while the lower and middle parts of the cavity remain smooth. When water flows in the particle conveying pipe 3, the water flowing in the upper part of the cavity rotates under the obstruction and guidance of the spiral guide vanes 32, agitating the water flow in the lower part of the particle conveying pipe 3. This rotating water flow scours the TPV elastomer particles in the lower part of the cavity, causing them to leave the bottom wall of the cavity and suspend in the water flow, facilitating the transport of the TPV elastomer particles with the water flow.

[0041] Placing the spiral guide vane 32 only at the top of the pipe cavity can prevent it from obstructing the advance of the TPV elastomer particles, ensuring the smooth transport of the TPV elastomer particles, which are mainly concentrated in the lower part of the pipe cavity. Furthermore, placing the spiral guide vane 32 at the top of the pipe cavity can also obstruct the water flow in the upper part of the pipe cavity, concentrating the main flow capacity in the lower part of the pipe cavity. This can also increase the water flow velocity in the lower part of the particle transport pipe 3 to a certain extent, thereby improving the transport effect of the TPV elastomer particles in the particle transport pipe 3.

[0042] In another preferred embodiment of the hydraulic conveying mechanism for TPV elastomer particles of this application, the water agitation device is a guide spiral ring disposed around the inner wall of the particle conveying pipe 3. Under the guidance of the guide spiral ring, the water flow in the particle conveying pipe 3 forms a complete spiral circulation around the periphery of the pipe cavity, agitating the TPV elastomer particles located at the bottom of the particle conveying pipe 3, causing more TPV elastomer particles to be suspended in the water flow, which is beneficial to the conveying of TPV elastomer particles in water. However, this structure can easily cause a small number of TPV elastomer particles to remain in the gap at the bottom of the guide spiral ring, affecting the conveying efficiency of the TPV elastomer particles.

[0043] In one embodiment of the hydraulic conveying mechanism for TPV elastomer particles of this application, it is as follows: Figure 1 As shown, a circulating water tank 7 is also provided at the particle-water separation device 5 connected to the particle conveying pipe 3. The circulating water tank 7 is located below the particle-water separation device 5, and the water discharged from the drain of the particle-water separation device 5 flows into the circulating water tank 7; the inlet of the driving water pump 1 is also connected to the circulating water tank 7, and the water in the circulating water tank 7 is pumped into the pressure water pipe 2 for recycling.

[0044] A filter screen 71 is installed at the opening of the circulating water tank 7. Water discharged from the drain of the particle-water separation device 5 is discharged onto the filter screen 71. The filter screen 71 filters out particulate impurities in the water, ensuring the fluidity of the water and the conveying effect of the TPV elastomer particles.

[0045] In a preferred embodiment of the hydraulic conveying mechanism of the TPV elastomer particles of the present application, as shown in Figure 1 A partition filter plate 72 is arranged in the middle of the circulating water tank 7. The partition filter plate 72 uses a filter device with a smaller filter hole diameter than the filter screen 71, and partitions the tank body of the circulating water tank 7 into two different parts. The water outlet of the particle-water separation device 5 is located above the opening of one of the parts, and the water discharged from the particle-water separation device 5 enters the tank body of this part after being filtered by the filter screen 71, and then flows into the tank body of the other part after being further filtered by the partition filter plate 72, and is then pumped by the driving water pump 1 connected to the tank body of the other part for recycling. The arrangement of the partition filter plate 72 can further improve the cleanliness of the circulating water, and ensure the conveying effect of the TPV elastomer particles and the cleanliness of the TPV elastomer particles.

[0046] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application. Therefore, any equivalent changes made in accordance with the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A hydrotransport mechanism for TPV elastomeric pellets, characterized in that, The utility model relates to a kind of TVP elastomer pelletizing machine, including driving water pump (1), pressure water pipe (2) and particle delivery pipe (3), the driving water pump (1) is connected with the pressure water pipe (2), to be able to provide pressure water source to the pressure water pipe (2), the pressure water pipe (2) and particle delivery pipe (3) are connected with the pelletizing water chamber (4) of TVP elastomer pelletizing machine, to be able to deliver pressure water source into the pelletizing water chamber (4), using water power, the TPV elastomer particle in the pelletizing water chamber (4) is pushed into the particle delivery pipe (3), and is delivered to external particle-water separation device (5) by the particle delivery pipe (3), the particle delivery pipe (3) is provided with delivery pipe elbow (31), the big bending side of the delivery pipe elbow (31) is provided with the injection water pipe (6) towards lumen outlet end, the other end of the injection water pipe (6) is connected with the pressure water pipe (2).

2. The hydrotransport of TPV elastomeric pellets according to claim 1, wherein, The injection water pipe (6) is provided with a gap-opening electromagnetic switch valve (61).

3. The hydrotransport mechanism of TPV elastomeric pellets according to claim 2, characterized in that, The water outlet of the injection water pipe (6) is located at the lower part of the outlet end lumen adjacent to the water inlet side.

4. The hydrotransport of TPV elastomeric pellets of claim 1, wherein, The pressure water pipe (2) is connected to one side of the top of the pelletizing water chamber (4), and the particle delivery pipe (3) is connected to the bottom of the pelletizing water chamber (4).

5. The hydrotransport of TPV elastomeric pellets according to claim 4, wherein, The connection port of the pressure water pipe (2) to the pelletizing water chamber (4) is towards the center of the pelletizing water chamber (4), the connection port of the particle delivery pipe (3) to the pelletizing water chamber (4) is towards one side of the pelletizing water chamber (4), and is towards the same side as the connection port of the pressure water pipe (2) to the pelletizing water chamber (4).

6. The hydrotransport of TPV elastomeric pellets of claim 1, wherein, The particle delivery pipe (3) is provided with a water flow stirring device in the lumen.

7. The hydrotransport of TPV elastomeric pellets according to claim 6, wherein, The water flow stirring device is a plurality of spiral flow guides (32) spaced apart at the top of the lumen of the particle delivery pipe (3).

8. The hydrotransport of TPV elastomeric pellets of claim 6, wherein, The water flow stirring device is a flow guide spiral ring provided on the inner wall of the lumen of the particle delivery pipe (3).

9. The hydrotransport mechanism of TPV elastomeric pellets according to any one of claims 1-8, characterized in that, It also includes a circulating water tank (7), a filter screen (71) is provided at the opening of the circulating water tank (7), the particle-water separation device (5) is arranged above the opening of the circulating water tank (7), and the water inlet of the driving water pump (1) is connected to the circulating water tank (7).

10. The hydrotransport mechanism of TPV elastomeric pellets according to claim 9, characterized in that, A partitioning filter plate (72) is provided in the middle of the circulating water tank (7), which divides the circulating water tank (7) into two parts, the particle-water separation device (5) is located above the opening of one of the two parts, and the water inlet of the driving water pump (1) is connected to the other part.

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