A modified plastic particle rapid cooling device

Abstract

The application relates to the technical field of plastic particle processing equipment, in particular to a modified plastic particle rapid cooling device, a feeding cylinder is arranged in the middle of the cover plate at the top of a vertical cylinder body, and exhaust micro-holes are arranged at the outer edge of the cover plate; an air inlet pipe is sleeved on the top of the side wall of a discharging shell; a rotating groove body comprises an outer groove ring rotatably sleeved on the top of the inner cavity of the discharging shell; the two ends of an air passing pipe are respectively sleeved on the side wall of a connecting shell and the outer groove ring; a hollow shaft member is inserted into the top of the connecting shell, a spherical disc-shaped shell is arranged on the top of the hollow shaft member, and micro-holes are arranged on the spherical disc-shaped shell; hollow blades are radially inserted into the side wall of the hollow shaft member, and micro-holes are arranged on the top surface of the hollow blades; a side nozzle is inserted into the side wall of the hollow shaft member, and a slitted air outlet is arranged on the outer arc surface of the side nozzle; a driving member is used for driving the outer groove ring to rotate; a liquid cooling assembly air outlet is connected to the air inlet pipe; and an air compressor is used for supplying high-pressure air into the air inlet end of the liquid cooling assembly. The modified plastic particle cooling efficiency and uniformity are improved, and the particle agglomeration phenomenon is avoided.

Description

Technical Field

[0001] This invention relates to the field of plastic particle processing equipment technology, specifically to a rapid cooling device for modified plastic particles. Background Technology

[0002] The production of modified plastics is a complex process involving physical changes and chemical reactions. Its core purpose is to improve the mechanical properties, heat resistance, and aging resistance of base resins (such as PP, ABS, and PA) by adding modifiers (such as glass fiber, flame retardants, and impact modifiers). A typical modified plastic pellet processing flow usually includes the following key steps: raw material preparation and mixing → melt extrusion and modification → pelletizing → cooling → conveying → screening and homogenization → buffering → packaging and palletizing. During the production of modified plastic pellets, the pellets after pelletizing are at extremely high temperatures (usually above 100°C) and must be cooled and shaped immediately to prevent pellet adhesion and degradation and facilitate subsequent packaging. Therefore, the cooling station is the crucial link between "hot processing" and "cold treatment." Its operating status directly determines whether the upstream extrusion pelletizing speed can be fully utilized and whether the downstream screening and packaging can proceed smoothly.

[0003] However, existing cooling devices often have some drawbacks when integrated into automated production lines. For example, traditional air-cooling devices usually use conveyor belts to transport particles and fans to blow air for heat dissipation, but they suffer from low cooling efficiency, large space occupation, and difficulty in dissipating residual heat inside the particles.

[0004] While traditional water-cooling devices offer rapid cooling, they often suffer from high water consumption, require secondary drying of residual moisture on particle surfaces, and experience particle clumping due to uneven cooling. For example, in some existing cooling equipment, particles remain stationary or in laminar flow during the cooling process, resulting in insufficient contact with the cooling medium, which prolongs cooling time and impacts production efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a rapid cooling device for modified plastic particles, which solves the problems of low cooling efficiency, uneven cooling, and easy agglomeration of modified plastic particles in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a rapid cooling device for modified plastic particles, comprising a cover plate at the top of a vertical cylinder, a feed cylinder in the middle of the cover plate, an annular cavity near the outer edge of the top surface of the cover plate, and exhaust micro-holes arranged on the top surface of the annular cavity; an air inlet pipe sleeved on the side wall of the discharge housing near the top; a rotating trough including an outer groove ring rotatably fitted onto the top of the inner cavity of the discharge housing and the groove corresponding to the air inlet pipe; a connecting housing located at the center of the outer groove ring; an air duct extending radially and having its two ends respectively sleeved onto the connecting housing and the side wall of the outer groove ring; and a hollow shaft inserted at its bottom end into the center of the top of the connecting housing. The top is provided with a spherical disc-shaped shell with an outer diameter larger than the inner diameter of the feed cylinder, and the top surface of the spherical disc-shaped shell is provided with micropores; hollow blades are radially inserted into the side wall of the hollow shaft and are inclined, and the top surface is provided with micropores; side nozzles are inserted into the side wall of the hollow shaft and have slotted air outlets on the outer arc surface; a driving component is located on the outer side of the top of the discharge shell and is used to drive the outer groove ring to rotate; the inner cavity of the liquid cooling assembly is provided with a tube bundle with two ends connected to the air inlet and air outlet respectively, and the middle of the inner cavity is filled with coolant, and the air outlet of the liquid cooling assembly is connected to the air inlet pipe; an air compressor is used to supply high-pressure air to the air inlet of the liquid cooling assembly.

[0007] Preferably, the discharge housing includes a cylinder, a hopper, and a discharge cylinder connected sequentially from top to bottom. The air inlet pipe is fitted onto the side wall of the cylinder. The inner circumferential wall of the cylinder is fixed with an annular plate one and an annular plate two at positions corresponding to the upper and lower sides of the air inlet pipe, respectively. The top and bottom of the outer groove ring are rotatably connected to the annular plate one and the annular plate two, respectively. The groove cavity of the outer groove ring, the side wall of the cylinder, the annular plate one, and the annular plate two together form a closed annular cavity structure.

[0008] Preferably, the rotating groove further includes a first rotating bearing and a second rotating bearing. The inner ring of the first rotating bearing is fixed to the top surface of the first annular plate, and the outer ring of the second rotating bearing is fixed to the top surface of the second annular plate. The outer groove ring includes an annular shell and an annular plate three and an annular plate four fixedly sleeved on the outside of the top and bottom ends of the annular shell. A plurality of pipe joints matching the outer end of the air duct are fitted in the middle of the inner sidewall of the annular shell. The bottom surface of the third annular plate is fixedly connected to the top surface of the outer rotating ring of the first rotating bearing, and the fourth annular plate is fixedly connected to the top surface of the inner rotating ring of the second rotating bearing.

[0009] Preferably, a circular groove is connected to one side of the cylinder corresponding to the position of the first slewing bearing. The first slewing bearing is an external gear slewing bearing. The driving component includes a gear that is rotatably fitted in the circular groove and meshes with the outer ring teeth of the first slewing bearing, and an electric drive component that drives the gear to rotate.

[0010] Preferably, a connecting plate is provided between the vertical cylinder and the discharge housing. The bottom outer edge of the vertical cylinder is provided with an annular bottom plate. The connecting plate includes an annular support plate whose outer edge is sewn to the annular bottom plate and the outer edge of the top of the cylinder, a circular plate fixedly connected to one side of the annular support plate and whose outer edge is sewn to the outer edge of the top of the circular groove, and an inverted frustum housing whose top end is fixed to the inner edge of the annular support plate and whose bottom end is sleeved on the top of the inner cavity of the annular housing. The electric drive component is fixed to the top surface of the circular plate.

[0011] Preferably, the connecting housing includes a cylindrical housing and a conical cylinder that abuts the top of the cylindrical housing. The top of the conical cylinder is centrally provided with a polygonal sleeve hole that inserts into the bottom of the hollow shaft. The cylindrical housing has a plurality of connecting side holes evenly provided circumferentially on its peripheral wall. The air duct includes an outer sleeve whose outer end is sleeved with the side wall of the outer groove ring, an inner sleeve that is slidably sleeved on the inner end face of the outer sleeve and whose inner end is sleeved and matched with the connecting side hole, and a limiting sealing ring that is fixedly sleeved on the outer end of the inner sleeve and slidably sleeved and matched with the inner cavity of the outer sleeve.

[0012] Preferably, the hollow shaft component includes a vertical tube, a prism shell fixedly connected to the bottom end of the vertical tube and matched with the polygonal sleeve hole, a plurality of annular cavities uniformly arranged vertically outside the vertical tube, and a plurality of air outlet heads fixedly fitted onto the side wall of the vertical tube and located between two adjacent annular cavities. The spherical disc shell is fixedly fitted to the top end of the vertical tube at the center of its bottom surface. The annular cavity has a plurality of slots uniformly arranged circumferentially along its outer peripheral wall that match the inner end of the hollow blade. The side nozzle is inserted into the air outlet head.

[0013] Preferably, the hollow blade has an air inlet plug that matches the slot, the side nozzle includes an outer arc surface shell and an air inlet pipe that is fixedly sleeved on the center of the inner side wall of the outer arc surface shell and fixedly sleeved with the air outlet pipe, and the slotted air outlet is located on the outer side wall of the outer arc surface shell.

[0014] Preferably, it also includes a shaft end support and a retaining ring; The shaft end support includes a support ring fixedly supported at the top of the feed cylinder, a sleeve with its top fixed inside the support ring and fitted with the feed cylinder, multiple vertical plates with their tops fixed to the bottom of the sleeve, a shaft seat located at the top of the shaft center of the vertical cylinder, a support rod radially fixed between the outer peripheral wall of the shaft seat and the bottom of the vertical plate, and a spherical cover fixed at the top of the shaft seat. A short shaft that is rotatably fitted with the shaft seat is fixed at the center of the top of the spherical disc-shaped housing. The retaining ring includes an inclined ring plate sleeved in the inner cavity of the vertical cylinder and a slewing bearing three fixed to the bottom surface of the inclined ring plate with a fixed outer ring. The outer peripheral wall of the vertical cylinder is fixed with annular ribs at positions corresponding to the inclined ring plate. The inner ends of bolts radially fitted on the outer peripheral wall of the annular ribs are threaded into the outer peripheral wall of the inclined ring plate. The outer end of the hollow blade is provided with a support plate fixedly connected to the bottom surface of the inner rotating ring of the slewing bearing three.

[0015] Preferably, the liquid cooling assembly includes a cylindrical outer shell, a liquid outlet short pipe and a liquid inlet short pipe fixedly connected to the air inlet and air outlet ends of the cylindrical outer shell respectively, a pair of conical shells fixedly connected to the outer ends of the liquid outlet short pipe and the liquid inlet short pipe respectively, and a plurality of cooling air ducts forming a tube bundle. The inner sidewall of the conical shell is provided with a plurality of countersunk holes. Both ends of the cooling air ducts are provided with airtight pipe heads that are matched to the countersunk holes. The middle of the front wall of the liquid inlet short pipe is fitted with a liquid inlet pipe head connected to the cooling liquid supply pipe. The inner end of the liquid inlet short pipe is connected with an inner ring groove corresponding to the position of the liquid inlet pipe head. The middle of the front wall of the liquid outlet short pipe is fitted with a liquid outlet pipe head connected to the cooling liquid return pipe.

[0016] Compared with the prior art, the beneficial effects of the present invention are: The present invention relates to a rapid cooling device for modified plastic particles, which discharges cooling airflow in multiple dimensions through hollow blades, side nozzles, and a spherical disc shell. The rotating hollow blades and spherical disc shell facilitate the dispersion and jumping of modified plastic particles entering from the feed cylinder, increasing the path for the particles to receive air cooling. This enables the modified plastic particles to receive multi-directional cooling airflow in a loose and jumping state, significantly improving the cooling efficiency and uniformity of the plastic particles and preventing the modified plastic from clumping.

[0017] The present invention relates to a rapid cooling device for modified plastic particles, in which a liquid cooling component is used to further cool the cooling airflow to further improve the cooling effect of the modified plastic particles.

[0018] The present invention relates to a rapid cooling device for modified plastic particles with a simple and integrated overall structure and a modular structure, which not only makes the disassembly and assembly of the device more convenient, but also significantly reduces the amount of maintenance work and maintenance costs. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the entire invention; Figure 2 This is a three-dimensional structural diagram of the vertical cylinder of the present invention; Figure 3 This is a three-dimensional structural diagram of the discharge shell of the present invention; Figure 4This is an exploded structural diagram of the rotating groove of the present invention; Figure 5 This is a three-dimensional structural diagram of the outer groove ring of the present invention; Figure 6 This is a three-dimensional structural diagram of the connecting shell of the present invention; Figure 7 This is a three-dimensional structural diagram of the air duct of the present invention; Figure 8 This is a three-dimensional structural diagram of the hollow shaft component in this invention; Figure 9 This is a three-dimensional structural diagram of the hollow blade in this invention; Figure 10 This is a three-dimensional structural diagram of the side nozzle of the present invention; Figure 11 This is a three-dimensional structural diagram of the connecting plate of the present invention; Figure 12 This is a three-dimensional structural schematic diagram of the driving component of the present invention; Figure 13 This is an exploded structural diagram of the liquid cooling component of the present invention; Figure 14 This is a three-dimensional structural diagram of the liquid outlet pipe of the present invention; Figure 15 This is a three-dimensional structural diagram of the liquid inlet short tube of the present invention; Figure 16 This is a three-dimensional structural diagram of the conical shell of the present invention; Figure 17 This is a three-dimensional structural diagram of the cooling duct of the present invention; Figure 18 This is a three-dimensional structural diagram of the shaft end support member of the present invention; Figure 19 This is a three-dimensional structural diagram of the support ring of the present invention.

[0020] In the diagram: 1-Vertical cylinder; 1.1-Cover plate; 1.2-Feed cylinder; 1.3-Annular cavity; 1.3.1-Exhaust micropores; 1.4-Annular stiffening rib; 1.5-Annular bottom plate; 2-Discharge housing; 2.1-Cylinder; 2.2-Hopper; 2.3-Discharge cylinder; 2.4-Annular plate one; 2.5-Annular plate two; 2.6-Air inlet pipe; 2.7-Circular groove; 3-Rotating groove; 3.1-Outer groove ring; 3.1.1-Annular shell; 3.1.2-Annular plate three; 3.1.3-Annular plate four; 3.1.4-Pipe fitting; 3.2-Slewing bearing one; 3.3-Slewing bearing two; 4-Connecting shell; 4.1-Cylindrical shell; 4.1.1-Connecting side hole; 4.2-Conical cylinder; 4.2.1-Polygonal sleeve hole; 5-Air duct; 5.1-Outer sleeve; 5.2-Inner sleeve; 5.3-Limiting sealing ring; 6-Hollow shaft component; 6.1-Vertical tube; 6.2-Spherical disc shell; 6.3-Prismatic shell; 6.4-Annular cavity; 6.4.1-Slot; 6.5-Air outlet head; 6.6-Short shaft; 7-Hollow blades; 7.1-Air inlet plug; 7.2-Support plate; 8-Side nozzle; 8.1-Outer arc-shaped housing; 8.1.1-Slotted air outlet; 8.2-Air inlet pipe head; 9-Connecting plate; 9.1-Annular support plate; 9.2-Inverted frustum shell; 9.3-Circular plate; 10-Drive components; 10.1-Electric drive components; 10.2-Gears; 11-Liquid cooling assembly; 11.1-Cylindrical outer shell; 11.2-Outlet short pipe; 11.2.1-Outlet pipe head; 11.3-Inlet short pipe; 11.3.1-Inlet pipe head; 11.3.2-Inner annular groove; 11.4-Conical shell; 11.4.1-Counterhead; 11.5-Cooling air duct; 11.5.1-Airtight pipe head; 12-Air compressor equipment; 13-Shaft end support; 13.1-Support ring; 13.2-Sleeve; 13.3-Vertical plate; 13.4-Shaft seat; 13.5-Support rod; 13.6-Spherical cover; 14-Retaining ring; 14.1-Inclined ring plate; 14.2-Slewing bearing three. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figure 1-19This invention provides a technical solution: a rapid cooling device for modified plastic particles. The outer edge of the top of the vertical cylinder 1 is bolted to the outer edge of the cover plate 1.1. A feed cylinder 1.2 is located in the middle of the cover plate 1.1. An annular cavity 1.3 is located near the outer edge of the top surface of the cover plate 1.1. Exhaust micro-holes 1.3.1 are arranged on the top surface of the annular cavity 1.3, which are concentric arc-shaped slits on the top surface of the annular cavity 1.3. The width of the slits is smaller than the outer diameter of the modified plastic particles after pelletizing. The feed cylinder 1.2 is directly connected to the particle discharge structure of the modified plastic particle pelletizing station to ensure timely cooling of the chopped particles. An annular bottom plate 1.5 is located at the outer edge of the bottom of the vertical cylinder 1, and annular reinforcing plates 1.4 are uniformly fixed vertically along the outer periphery of the vertical cylinder 1. The annular reinforcing plates 1.4 not only improve the overall rigidity of the vertical cylinder 1 but also provide a mounting point for the subsequent installation of the retaining ring 14.

[0023] The discharge housing 2 includes a cylinder 2.1, a hopper 2.2, and a discharge cylinder 2.3 connected sequentially from top to bottom. An air inlet pipe 2.6 is fitted onto the side wall of the cylinder 2.1. Annular plates 2.4 and 2.5 are fixed to the inner circumference of the cylinder 2.1 at positions corresponding to the upper and lower sides of the air inlet pipe 2.6, respectively. The aperture of annular plate 2.5 is smaller than that of annular plate 2.4. A circular groove 2.7 is connected to one side of the cylinder 2.1 at a position corresponding to the top surface of annular plate 2.4. The bottom end of the discharge cylinder 2.3 is connected to the inlet of a lifting conveyor, which transports the cooled modified plastic particles to the screening and homogenization stage.

[0024] The rotating groove 3 includes an outer groove ring 3.1, a first slewing bearing 3.2, and a second slewing bearing 3.3. The outer groove ring 3.1 includes an annular shell 3.1.1 and annular plates 3.1.2 and 3.1.3 fixedly fitted around the top and bottom ends of the annular shell 3.1.1. Four pipe fittings 3.1.4 are fitted into the middle of the inner wall of the annular shell 3.1.1, and the four pipe fittings 3.1.4 are evenly distributed circumferentially. The first slewing bearing 3.2 is an external toothed slewing bearing, and the second slewing bearing 3.3 is a toothless slewing bearing. The inner ring of the first slewing bearing 3.2 is fixed to the top surface of the first annular plate 2.4, the outer ring of the second slewing bearing 3.3 is fixed to the top surface of the second annular plate 2.5, the bottom surface of the third annular plate 3.1.2 is fixedly connected to the top surface of the rotating outer ring of the first slewing bearing 3.2, and the fourth annular plate 3.1.3 is fixedly connected to the top surface of the rotating inner ring of the second slewing bearing 3.3. The outer wall of the annular shell 3.1.1, together with the annular plate 3.1.2 and the annular plate 4.1.3, forms a cavity. The cavity of the outer ring 3.1, the side wall of the cylinder 2.1, the annular plate 1 and the annular plate 2.5 together form a closed annular cavity structure.

[0025] The connecting housing 4 is located at the center of the outer groove ring 3.1. The connecting housing 4 includes a cylindrical housing 4.1 and a conical cylinder 4.2 that abuts against the top of the cylindrical housing 4.1. The top of the conical cylinder 4.2 is provided with a polygonal sleeve hole 4.2.1 in the center. The cylindrical housing 4.1 has four connecting side holes 4.1.1 evenly provided along the circumferential direction on its peripheral wall.

[0026] The air duct 5 includes an outer sleeve 5.1 whose outer end is fitted and matched with the pipe connector 3.1.4; an inner sleeve 5.2 which is slidably fitted onto the inner end face of the outer sleeve 5.1 and whose inner end is fitted and matched with the connecting side hole 4.1.1; and a limiting sealing ring 5.3 which is fixedly fitted onto the outer end of the inner sleeve 5.2 and slidably fitted and matched with the inner cavity of the outer sleeve 5.1. The expandable and contractile properties of the air duct 5 facilitate quick connection of both ends of the air duct 5 to the pipe connector 3.1.4 and the connecting side hole 4.1.1, respectively, thus enabling the connecting housing 4, the rotating groove 3, and the air duct 5 to form a rotatable integral structure.

[0027] The hollow shaft component 6 includes a vertical tube 6.1, a prism shell 6.3 fixedly connected to the bottom end of the vertical tube 6.1 and inserted into a polygonal sleeve hole 4.2.1, multiple annular cavities 6.4 evenly distributed vertically outside the vertical tube 6.1, and multiple air outlet heads 6.5 fixedly fitted onto the side wall of the vertical tube 6.1 and located between two adjacent annular cavities 6.4. A spherical disc shell 6.2 is fixedly fitted to the top end of the vertical tube 6.1 at the center of its bottom surface. Multiple slots 6.4.1 are evenly distributed circumferentially on the outer peripheral wall of the annular cavities 6.4. The outer diameter of the spherical disc shell 6.2 is larger than the inner diameter of the feed cylinder 1.2, and the top surface of the spherical disc shell 6.2 is provided with micropores. A short shaft 6.6 is fixedly fixed at the center of the top end of the spherical disc shell 6.2.

[0028] The hollow blade 7 has an air inlet plug 7.1 at its inner end that matches the slot 6.4.1. Specifically, the hollow blade 7 is radially inserted into the side wall of the hollow shaft 6, and its inclined top surface is provided with micropores. The outer end of the hollow blade 7 has an arc-shaped support plate 7.2. The edges of the hollow blade 7 are rounded to avoid damage to the modified plastic particles and to prevent affecting their appearance.

[0029] The side nozzle 8 includes an outer arc surface housing 8.1 and an air inlet pipe head 8.2 fixedly sleeved on the center of the inner side wall of the outer arc surface housing 8.1 and fixedly sleeved and matched with the air outlet pipe head 6.5. The slotted air outlet 8.1.1 is provided on the outer side wall of the outer arc surface housing 8.1.

[0030] The connecting plate 9 includes an annular support plate 9.1 whose outer edge is stitched to the annular base plate 1.5 and the outer edge of the top of the cylinder 2.1; a circular plate 9.3 fixedly connected to one side of the annular support plate 9.1 and whose outer edge is stitched to the outer edge of the top of the circular groove 2.7; and an inverted frustum shell 9.2 whose top end is fixed to the inner edge of the annular support plate 9.1 and whose bottom end is sleeved on the top of the inner cavity of the annular shell 3.1.1. The inverted frustum shell 9.2 is used to guide the modified plastic particles that have completed cooling and falling through the annular shell 3.1.1 into the hopper 2.2, so as to avoid plastic particle residue and prevent plastic particles from entering the outer cavity of the slewing bearing 3.2 and affecting the meshing transmission.

[0031] The driving component 10 is located on the outer side of the top of the discharge housing 2 and is used to drive the outer groove ring 3.1 to rotate. The driving component 10 includes a gear 10.2 rotatably fitted within the circular groove 2.7 and meshing with the outer ring teeth of the slewing bearing 3.2, and an electric drive component 10.1 that drives the gear 10.2 to rotate. The electric drive component 10.1 is fixed to the top surface of the circular plate 9.3. The electric drive component 10.1 consists of a motor and a reducer. The electric drive component 10.1 drives the rotatable integral structure consisting of the connecting housing 4, the rotating groove 3, and the air duct 5 to rotate through the meshing transmission action of the gear 10.2 and the outer ring teeth of the slewing bearing 3.2. The connecting housing 4 then drives the hollow shaft 6 to rotate. The rotating hollow shaft 6 drives the hollow blades 7 and the side nozzles 8 to rotate.

[0032] The liquid cooling assembly 11 has a tube bundle with its two ends connected to the air inlet and air outlet respectively, and coolant flows through the middle of the inner cavity. The air outlet of the liquid cooling assembly 11 is connected to the air inlet pipe 2.6. The liquid cooling assembly 11 includes a cylindrical outer shell 11.1, a liquid outlet short pipe 11.2 and a liquid inlet short pipe 11.3 respectively fixedly connected to the air inlet and air outlet of the cylindrical outer shell 11.1, a pair of conical shells 11.4 respectively fixedly connected to the outer ends of the liquid outlet short pipes 11.2 and the liquid inlet short pipes 11.3, and several cooling air ducts 11.5 forming the tube bundle. Several countersunk holes 11.4.1 are arranged on the inner sidewall of the conical shell 11.4. 11.5 has airtight pipe heads 11.5.1 at both ends that are matched with the countersunk hole 11.4.1. The front wall of the short inlet pipe 11.3 is fitted with an inlet pipe head 11.3.1 connected to the cooling liquid supply pipe. The inner end of the short inlet pipe 11.3 is connected to an inner ring groove 11.3.2 corresponding to the position of the inlet pipe head 11.3.1. The front wall of the short outlet pipe 11.2 is fitted with an outlet pipe head 11.2.1 connected to the cooling liquid return pipe. That is, the inlet pipe 11.3 and the outlet pipe 11.2 are connected to the cooling liquid circulation system. The outer port of the conical shell 11.4 at the air inlet end of the liquid cooling assembly 11 is connected to the air outlet of the air compressor 12 via a pipe, and the outer port of the conical shell 11.4 at the air outlet end of the liquid cooling assembly 11 is connected to the air inlet pipe 2.6. The air compressor 12 is used to supply high-pressure air to the air inlet end of the liquid cooling assembly 11. High-pressure air first enters the cooling duct 11.5 through the inner cavity of the conical shell 11.4 at the air inlet end of the liquid cooling component 11, and then exits from the cooling duct 11.5 through the inner cavity of the conical shell 11.4 at the air outlet end of the liquid cooling component 11 into the air inlet duct 2.6. During the flow of high-pressure air through the cooling duct 11.5, heat exchange occurs between the high-pressure air and the cooling liquid flowing in the opposite direction inside the cylindrical outer shell 11.1, which transforms the high-pressure air into low-temperature, high-pressure air, thereby improving the cooling effect on the modified plastic particles.

[0033] To ensure the stability of the hollow shaft 6 in driving the hollow blade 7 and the side nozzle 8 to rotate as a whole, a shaft end support 13 and a retaining ring 14 are also provided.

[0034] The shaft end support 13 includes a support ring 13.1 fixedly supported at the top of the feed cylinder 1.2, a sleeve 13.2 whose top end is fixed inside the support ring 13.1 and fitted into the feed cylinder 1.2, multiple vertical plates 13.3 whose top ends are fixed to the bottom of the sleeve 13.2, a bearing 13.4 located at the top of the axis of the vertical cylinder 1, a support rod 13.5 radially fixed between the outer peripheral wall of the bearing 13.4 and the bottom of the vertical plate 13.3, and a spherical cover 13.6 fixed to the top of the bearing 13.4. The short shaft 6.6 is rotatably supported within the bearing 13.4 via bearings.

[0035] The retaining ring 14 includes an inclined ring plate 14.1 fitted into the inner cavity of the vertical cylinder 1 and a slewing bearing 14.2 fixed to the bottom surface of the inclined ring plate 14.1 with a fixed outer ring. The inner ends of the bolts radially fitted on the outer peripheral wall of the annular stiffener 1.4 are threaded onto the outer peripheral wall of the inclined ring plate 14.1. The slewing bearing 14.2 is a toothless slewing bearing, and the support plate 7.2 is fixed to the bottom surface of the rotating inner ring of the slewing bearing 14.2 with bolts. That is, the slewing bearing 14.2 can effectively support the outer end of the rotating hollow blade 7.

[0036] In summary, the low-temperature, high-pressure airflow cooled by the liquid cooling component 11 enters the groove of the outer ring 3.1 through the air inlet pipe 2.6. The ring 2.1 sidewall, annular plate 2.4, and annular plate 2.5 together form a closed annular cavity structure. The cooling airflow within the annular cavity structure then enters the connecting housing 4 through the air duct 5. The cooling airflow within the connecting housing 4 enters the vertical pipe 6.1 through the prismatic housing 6.3, and is then supplied to the spherical disc housing 6.2, the hollow blade 7, and the side nozzles 8, respectively, forming a multi-directional air cooling effect.

[0037] When the slit modified plastic particles enter through the feed cylinder 1.2, a small portion of the plastic particles are reflected by the spherical shield 13.6 and enter the vertical cylinder 1 through the space between the vertical plates 13.3; most of the plastic particles fall downwards onto the top surface of the rotating spherical disc shell 6.2. Due to the centrifugal force and the reflection of the spherical disc shell 6.2, they are dispersed in all directions. As the micropores on the top surface of the spherical disc shell 6.2 will spray out cooling airflow, it will provide the first air cooling effect on the plastic particles entering the inner cavity of the vertical cylinder 1.

[0038] Subsequently, as the plastic particles fall, they are dispersed by the rotating hollow blades 7, and the micropores on the hollow blades 7 also spray out cooling airflow, providing a second air-cooling effect on the plastic particles.

[0039] Immediately afterwards, the air outlet 8.1.1 on the side nozzle 8 will also spray cooling air to all directions as it rotates with the hollow shaft 6, providing a third air cooling effect.

[0040] The inclined ring plate 14.1 in the retaining ring 14 can prevent plastic particles from falling into the rotational joint of the slewing bearing 14.2, and can also provide a "reflective effect" on plastic particles.

[0041] By using various structural elements to disperse and "reflect" the plastic particles, the particles entering the inner cavity of the vertical cylinder 1 are dispersed and jump around, completely avoiding clumping. This jumping motion further increases the path length for the plastic particles to receive the air-cooling effect.

[0042] The plastic particles dispersed and jumping on the turntable are rapidly cooled by multi-directional air cooling. After cooling, the modified plastic particles flow downwards through the inverted frustum shell 9.2 and then sequentially pass through the cylinder 2.1, hopper 2.2, and discharge cylinder 2.3 to complete the discharge process.

[0043] It should be noted that in this article, relational terms such as first and second are only used to refer to... Distinguishing one entity or operation from another does not necessarily require or imply any such actual relationship or order between those entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A modified plastic particle rapid cooling device, characterized by, include: The vertical cylinder (1) has a cover plate (1.1) at the top, a feed cylinder (1.2) in the middle of the cover plate (1.1), and an exhaust micro-hole (1.3.1) near the outer edge of the cover plate (1.1). The discharge housing (2) has an air inlet pipe (2.6) fitted onto its side wall near the top. The rotating trough (3) includes an outer groove ring (3.1) that is rotatably fitted onto the top of the inner cavity of the discharge housing (2) and whose cavity corresponds to the air inlet pipe (2.6); The connecting housing (4) is located at the center of the outer groove ring (3.1); The air duct (5) extends radially and its two ends are respectively sleeved on the side wall of the connecting housing (4) and the outer groove ring (3.1); The hollow shaft (6) is inserted at the bottom of the top center of the connecting housing (4) and the top is provided with a spherical disc housing (6.2) with an outer diameter larger than the inner diameter of the feed cylinder (1.2). The top surface of the spherical disc housing (6.2) is provided with micropores. The hollow blade (7) is radially inserted into the side wall of the hollow shaft (6) and has micropores arranged on its top surface; Side nozzles (8) are inserted into the side wall of the hollow shaft (6) and have slotted air outlets (8.1.1) arranged on the outer arc surface. A driving component (10) is located on the outer side of the top of the discharge housing (2) and is used to drive the outer groove ring (3.1) to rotate; The liquid cooling assembly (11) has a tube bundle in its inner cavity that is connected to the air inlet and the air outlet respectively, and coolant flows through the middle of the inner cavity. The air outlet of the liquid cooling assembly (11) is connected to the air inlet pipe (2.6). An air compressor (12) is used to supply high-pressure air to the air inlet of the liquid cooling assembly (11).

2. The rapid cooling device for modified plastic particles according to claim 1, characterized in that: The discharge housing (2) includes a cylinder (2.1), a hopper (2.2), and a discharge cylinder (2.3) connected sequentially from top to bottom. The air inlet pipe (2.6) is fitted onto the side wall of the cylinder (2.1). The inner circumferential wall of the cylinder (2.1) is fixed with an annular plate one (2.4) and an annular plate two (2.5) at positions corresponding to the upper and lower sides of the air inlet pipe (2.6). The top and bottom of the outer groove ring (3.1) are rotatably connected to the annular plate one (2.4) and the annular plate two (2.5) respectively. The groove cavity of the outer groove ring (3.1), the side wall of the cylinder (2.1), the annular plate one (2.4), and the annular plate two (2.5) together form a closed annular cavity structure.

3. The rapid cooling device for modified plastic particles according to claim 2, characterized in that: The rotating groove (3) further includes a first slewing bearing (3.2) and a second slewing bearing (3.3). The inner ring of the first slewing bearing (3.2) is fixed to the top surface of the first annular plate (2.4), and the outer ring of the second slewing bearing (3.3) is fixed to the top surface of the second annular plate (2.5). The outer groove ring (3.1) includes an annular shell (3.1.1) and a ring fixedly sleeved on the outside of the top and bottom ends of the annular shell (3.1.1). The annular plate (3.1.2) and the ring plate (3.1.3) are fitted with a plurality of pipe joints (3.1.4) that are matched to the outer end of the air duct (5) in the middle of the inner side wall of the annular shell (3.1.1). The bottom surface of the annular plate (3.1.2) is fixedly connected to the top surface of the outer rotating ring of the first slewing bearing (3.2), and the annular plate (3.1.3) is fixedly connected to the top surface of the inner rotating ring of the second slewing bearing (3.3).

4. The rapid cooling device for modified plastic particles according to claim 3, characterized in that: A circular groove (2.7) is connected to one side of the cylinder (2.1) at the position corresponding to the slewing bearing (3.2). The slewing bearing (3.2) is an external gear slewing bearing. The driving component (10) includes a gear (10.2) that is rotatably fitted in the circular groove (2.7) and meshes with the outer ring teeth of the slewing bearing (3.2), and an electric drive component (10.1) that drives the gear (10.2) to rotate.

5. The rapid cooling device for modified plastic particles according to claim 4, characterized in that: A connecting plate (9) is provided between the vertical cylinder (1) and the discharge housing (2). The bottom outer edge of the vertical cylinder (1) is provided with an annular bottom plate (1.5). The connecting plate (9) includes an annular support plate (9.1) whose outer edge is stitched to the annular bottom plate (1.5) and the outer edge of the top of the cylinder (2.1), a circular plate (9.3) fixedly connected to one side of the annular support plate (9.1) and whose outer edge is stitched to the outer edge of the top of the circular groove (2.7), and an inverted frustum housing (9.2) whose top end is fixed to the inner edge of the annular support plate (9.1) and whose bottom end is sleeved on the top of the inner cavity of the annular housing (3.1.1). The electric drive unit (10.1) is fixed to the top surface of the circular plate (9.3).

6. The rapid cooling device for modified plastic particles according to claim 1, characterized in that: The connecting housing (4) includes a cylindrical housing (4.1) and a conical cylinder (4.2) mating to the top of the cylindrical housing (4.1). The top of the conical cylinder (4.2) is centrally located and has a polygonal sleeve hole (4.2.1) for insertion into the bottom of the hollow shaft (6). The cylindrical housing (4.1) has multiple connecting side holes evenly distributed circumferentially on its peripheral wall. 4.1.1), the air duct (5) includes an outer sleeve (5.1) whose outer end is sleeved with the side wall of the outer groove ring (3.1), an inner sleeve (5.2) which is slidably sleeved on the inner end face of the outer sleeve (5.1) and whose inner end is sleeved and matched with the connecting side hole (4.1.1), and a limiting sealing ring (5.3) which is fixedly sleeved on the outside of the outer end of the inner sleeve (5.2) and slidably sleeved and matched with the inner cavity of the outer sleeve (5.1).

7. The rapid cooling device for modified plastic particles according to claim 6, characterized in that: The hollow shaft component (6) includes a vertical tube (6.1), a prism shell (6.3) fixedly connected to the bottom end of the vertical tube (6.1) and inserted into the polygonal sleeve hole (4.2.1), a plurality of annular cavities (6.4) uniformly arranged vertically outside the vertical tube (6.1), and a plurality of air outlet heads (6.5) fixedly fitted on the side wall of the vertical tube (6.1) and located between two adjacent annular cavities (6.4). The spherical disc shell (6.2) is fixedly fitted to the top end of the vertical tube (6.1) at the center of the bottom surface. The annular cavity (6.4) has a plurality of slots (6.4.1) uniformly arranged circumferentially on the outer peripheral wall of the annular cavity (6.4) that are inserted into the inner end of the hollow blade (7). The side nozzle (8) is inserted into the air outlet head (6.5).

8. The rapid cooling device for modified plastic particles according to claim 7, characterized in that: The hollow blade (7) has an air inlet plug (7.1) at its inner end that is matched with the slot (6.4.1). The side nozzle (8) includes an outer arc surface shell (8.1) and an air inlet pipe (8.2) that is fixedly sleeved on the center of the inner side wall of the outer arc surface shell (8.1) and fixedly sleeved with the air outlet pipe (6.5). The slotted air outlet (8.1.1) is located on the outer side wall of the outer arc surface shell (8.1).

9. The rapid cooling device for modified plastic particles according to claim 1, characterized in that: It also includes a shaft end support (13) and a retaining ring (14); The shaft end support (13) includes a support ring (13.1) fixedly supported at the top of the feed cylinder (1.2), a sleeve (13.2) with its top fixed inside the support ring (13.1) and fitted with the feed cylinder (1.2), a plurality of vertical plates (13.3) with their tops fixed at the bottom of the sleeve (13.2), a shaft seat (13.4) located at the top of the shaft center of the vertical cylinder body (1), a support rod (13.5) radially fixed between the outer peripheral wall of the shaft seat (13.4) and the bottom of the vertical plate (13.3), and a spherical cover (13.6) fixed at the top of the shaft seat (13.4). The top of the spherical disc shell (6.2) is centrally fixed with a short shaft (6.6) that is rotatably fitted with the shaft seat (13.4). The retaining ring (14) includes an inclined ring plate (14.1) sleeved in the inner cavity of the vertical cylinder (1) and a slewing bearing three (14.2) with a fixed outer ring fixed to the bottom surface of the inclined ring plate (14.1). The outer peripheral wall of the vertical cylinder (1) is fixed with annular ribs (1.4) at positions corresponding to the inclined ring plate (14.1). The inner ends of the bolts radially fitted on the outer peripheral wall of the annular ribs (1.4) are threadedly connected to the outer peripheral wall of the inclined ring plate (14.1). The outer end of the hollow blade (7) is provided with a support plate (7.2) fixedly connected to the bottom surface of the rotating inner ring of the slewing bearing three (14.2).

10. A rapid cooling device for modified plastic particles according to claim 1, characterized in that: The liquid cooling assembly (11) includes a cylindrical shell (11.1), a liquid outlet short pipe (11.2) and a liquid inlet short pipe (11.3) respectively fixedly connected to the air inlet and air outlet ends of the cylindrical shell (11.1), a conical shell (11.4) arranged in pairs and respectively fixedly connected to the outer ends of the liquid outlet short pipe (11.2) and the liquid inlet short pipe (11.3), and a plurality of cooling air ducts (11.5) forming a tube bundle. The inner sidewall of the conical shell (11.4) is provided with a plurality of countersunk holes (11.4.1). The cooling air ducts (11.5) Both ends are provided with airtight pipe heads (11.5.1) that are matched to the countersunk hole (11.4.1). The middle of the front wall of the liquid inlet short pipe (11.3) is fitted with a liquid inlet pipe head (11.3.1) that is connected to the cooling liquid supply pipe. The inner end of the liquid inlet short pipe (11.3) is connected with an inner ring groove (11.3.2) corresponding to the position of the liquid inlet pipe head (11.3.1). The middle of the front wall of the liquid outlet short pipe (11.2) is fitted with a liquid outlet pipe head (11.2.1) that is connected to the cooling liquid return pipe.

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