Abs high glue powder airflow impact crushing drying all-in-one machine

Abstract

The ABS high glue powder airflow impact crushing and drying all-in-one machine relates to the technical field of rubber and plastic powder crushing processing equipment, and comprises an integrated base, a feed pre-depolymerization unit, an airflow impact crushing unit, a hot air generating unit and a material conveying unit arranged on the base; a bendable corrugated feed pipe and an adjustable depolymerization pressure roller are arranged at the feed end to realize pre-dispersion of the caked material; a reverse double screw is matched with auxiliary airflow conveying to reduce wall sticking and bridging; the hot air generating unit utilizes water circulation heat exchange to generate spiral cyclone hot air to improve drying uniformity; mechanical impact crushing and airflow impact crushing are combined in the crushing cavity, and a drainage fan wheel is used to make the material suspended and fully processed; a negative pressure discharge assembly is configured to realize closed discharge. The application solves the problems of easy caking, wall sticking, uneven drying, uneven crushing particle size and the like of ABS high glue powder, realizes integrated layout of the whole machine, realizes continuous and automatic operation of the process, reduces the blocking failure, improves the finished product particle size and purity, reduces energy consumption, and is suitable for continuous crushing and drying production of ABS high glue powder.

Description

Technical Field

[0001] This invention relates to the technical field of rubber and plastic powder crushing and processing equipment, specifically to an integrated machine for airflow impact crushing and drying of ABS high-rubber powder. Background Technology

[0002] ABS (acrylonitrile-butadiene-styrene copolymer) high-resin powder is a core modifying raw material for preparing ABS resin. It possesses characteristics such as high viscosity, high elasticity, easy moisture absorption, and a tendency to clump, and is widely used in high-end rubber and plastic products in the home appliance, automotive, and electronics industries. In the industrial production of ABS high-resin powder, crushing and drying are the core processes that determine the particle size, purity, and performance of the finished product, directly affecting the core qualities of subsequent ABS products, such as toughness and impact resistance.

[0003] Currently, most traditional ABS high-resin powder processing equipment in the industry adopts a split structure, separating processes such as feeding, crushing, drying, conveying, and discharging into independent devices. This results in dispersed equipment layouts, large footprints, cumbersome on-site installation and commissioning, poor coordination between processes, difficulty in achieving automated continuous operation, high manual intervention costs, and overall low production efficiency. Furthermore, existing processing equipment has extremely poor adaptability to the special material characteristics of ABS high-resin powder, presenting numerous common technical challenges in the industry.

[0004] Traditional equipment lacks a pre-depolymerization structure, making it highly susceptible to clumping and agglomeration of ABS high-viscosity powder during storage and transportation due to its inherent viscosity and moisture absorption. Large pieces of material directly enter the crushing process, easily causing equipment jams, blockages, and idling, leading to frequent production line shutdowns for cleaning and severely impacting production continuity. In the material conveying stage, traditional single-screw conveyors suffer from uneven material delivery, localized accumulation, and material bridging against the conveyor walls. High-viscosity powder easily adheres to the inner walls of the conveyor channel, causing blockages and poor material supply stability, failing to provide uniform material for subsequent drying and crushing processes.

[0005] In terms of drying technology, traditional equipment mostly adopts a direct-blowing hot air drying mode. The hot air flow is unidirectional, the contact area with the material is small, and the contact time is short. It can only dry the surface moisture of the material, and it is difficult to completely remove the internal moisture of the rubber powder particles. This results in uneven drying and inconsistent dryness and wetness. In addition, the direct-blowing hot air has a large heat loss, low energy utilization rate, and high production cost. At the same time, the hot air channel is prone to backflow and blockage, resulting in poor long-term operational stability of the equipment.

[0006] In the crushing process, traditional equipment mostly adopts a single mechanical crushing or a single airflow crushing mode. The single crushing method has prominent limitations, and the material crushing fineness is insufficient. Problems such as uneven particle size, insufficient crushing, and material sedimentation and accumulation are easy to occur. The finished product particle size does not meet the standards and the quality is inconsistent, which cannot meet the raw material requirements of high-end ABS products.

[0007] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Summary of the Invention

[0008] To address the shortcomings of existing technologies, this invention provides an integrated airflow impact pulverization and drying machine for high-rubber ABS powder. This machine solves several problems: existing high-rubber ABS powder processing equipment is mostly modular, lacking a pre-depolymerization structure, leading to powder agglomeration and blockage; single-screw conveyors are prone to wall adhesion and bridging, resulting in unstable feeding; direct-blowing drying suffers from uneven drying, high energy consumption, and easy duct blockage; single-pulverization mode results in uneven finished product particle size; open discharge easily introduces impurities, disrupting the internal temperature flow field; low equipment automation, cumbersome installation and commissioning, high maintenance costs, and difficulty in meeting the continuous and stable production needs of high-end ABS powder.

[0009] To achieve the above objectives, the present invention provides the following technical solution: An integrated airflow impact pulverizer and dryer for high-rubber ABS powder includes an integrated base, on which a feeding pre-depolymerization unit, an airflow impact pulverizer, a hot air generation unit, and a material conveying unit are respectively provided.

[0010] As an optimized solution, the hot air generating unit includes a temperature regulating outer cylinder, which is a cylindrical cylinder with openings at the top and bottom, and the lower end of the temperature regulating outer cylinder is fixed to the upper surface of the integrated base.

[0011] As an optimized solution, the outer cylinder for temperature regulation is provided with a hot water inner cavity in the middle.

[0012] As an optimized solution, two spiral air guide plates with the same direction of rotation and spaced apart are fixed on the inner peripheral wall of the temperature regulating outer cylinder, and the two spiral air guide plates form a spiral air inlet channel.

[0013] As an optimized solution, the upper end of the temperature regulating outer cylinder is fixed with a closed end cap, which is a horizontally set circular cap.

[0014] As an optimized solution, an air inlet box is fixed on one longitudinal side of the upper surface of the closed end cover, and the lower end of the air inlet box is connected to the closed end cover and faces the spiral air inlet channel.

[0015] As an optimized solution, the airflow impact pulverizing unit includes a cylindrical transfer box, which is located inside the temperature regulating outer cylinder and fixed on the upper surface of the integrated base.

[0016] As an optimized solution, a transmission connecting seat is rotatably installed in the middle of the inner bottom surface of the cylindrical transfer box, and several centrally symmetrical feeding ports are opened on the upper surface of the cylindrical transfer box.

[0017] As an optimized solution, a drive shaft is fixed at the center of the upper surface of the transmission connection seat, and the upper end of the drive shaft passes through the upper wall of the cylindrical transfer box and is fixed with a flow guide fan.

[0018] As an optimized solution, a crushing and processing inner cylinder is fixed to the upper surface of the cylindrical transfer box, the upper end of the crushing and processing inner cylinder is fixed to the lower surface of the closed end cap, and the inner circumferential walls of the two spiral air guide plates are fixed to the outer circumferential walls of the crushing and processing inner cylinder.

[0019] As an optimized solution, a spiral air inlet is provided on the outer peripheral wall of the crushing and processing inner cylinder. The spiral air inlet is located between two spiral air guide plates, and an isolation net is fixed inside the spiral air inlet.

[0020] As an optimized solution, the integrated base is a square base that is horizontally fixed to the ground, and an electrical control box is fixed to one side of the upper surface of the integrated base.

[0021] As an optimized solution, the feeding pre-depolymerization unit includes a feeding hopper, which is a square hopper with an open top and a gradually narrowing bottom. A pre-depolymerization waste box is fixed to the lower end of the feeding hopper and communicates with it. The pre-depolymerization waste box is a square box with an open top, and the lower end of the pre-depolymerization waste box is fixed to the upper surface of the integrated base.

[0022] As an optimized solution, a closed cover is fixedly fastened to the upper end of the feed hopper, and a corrugated feed pipe is fixed to the upper end of the closed cover.

[0023] As an optimized solution, two transversely symmetrical and retractable depolymerization pressure rollers are rotatably arranged inside the pre-depolymerization box at the top, and the depolymerization pressure rollers are arranged to extend longitudinally.

[0024] As an optimized solution, each of the two transverse sides of the pre-depolymerized material box is provided with a rotating mounting frame. The rotating mounting frame is a horizontally set, transversely open C-shaped frame. The two ends of the rotating mounting frame pass through the transverse outer wall of the pre-depolymerized material box and extend to the outer side of the end face of the depolymerization pressure roller. The depolymerization pressure roller is rotatably mounted on the rotating mounting frame.

[0025] As an optimized solution, an adjustable telescopic cylinder is fixed on the transverse outer wall of the pre-disintegrated aggregate bin, and the telescopic end of the adjustable telescopic cylinder is fixed to the transverse inner wall of the rotating mounting frame.

[0026] As an optimized solution, two transversely symmetrical movable communication ports are respectively opened on the longitudinal outer wall of each side of the pre-disintegrated aggregate bin.

[0027] As an optimized solution, each of the movable communication ports is provided with a positioning bracket on its outer side, and the positioning bracket is fixedly connected to the rotating mounting bracket.

[0028] As an optimized solution, a rolling drive motor is fixed on the outer end face of the two positioning brackets on the same side. The output shaft end of the rolling drive motor passes through the positioning bracket and the rotating mounting bracket and is fixed to the center of the side end face of the depolymerization roller.

[0029] As an optimized solution, the material conveying unit includes a twin-screw feeding assembly, which includes a horizontal feeding box. The horizontal feeding box is a horizontally extending square box, and the lower end of the horizontal feeding box is fixed to the upper surface of the integrated base.

[0030] As an optimized solution, one end of the horizontal feeding box is fixed to and connected to the transverse outer wall of the pre-disintegrated aggregate box.

[0031] As an optimized solution, two longitudinally symmetrical conveyor drive motors are fixed on the transverse outer wall of the pre-disintegrated aggregate bin, and the conveyor drive motors are positioned directly opposite the horizontal feed bin.

[0032] As an optimized solution, the output shaft end of each of the conveying drive motors passes through the side wall of the pre-disintegrated aggregate bin and is fixed with a feeding screw. The end of the feeding screw extends laterally and passes through the entire horizontal feeding bin, and the spiral blades on the two feeding screws rotate in opposite directions.

[0033] As an optimized solution, an inclined air supply box is fixed in the middle of the upper surface of the horizontal feeding box. The air supply box is connected to the horizontal feeding box. A conveying fan is fixed and connected to the upper end face of the air supply box. The conveying fan can blow out a conveying airflow that flows along the spiral feeding direction of the material.

[0034] As an optimized solution, a lateral support frame is fixed on the transverse outer peripheral wall of the temperature regulating outer cylinder near the feed hopper. The lateral support frame is a U-shaped frame with the opening facing downwards, and the lower end of the lateral support frame is fixed on the upper surface of the integrated base.

[0035] As an optimized solution, an electric water heater is fixed to the middle of the upper surface of the lateral support frame, and an inlet bend is fixedly connected to the upper end of the electric water heater. The end of the inlet bend is fixedly connected to the temperature regulating outer cylinder and communicates with the hot water inner cavity.

[0036] As an optimized solution, a circulating water pump is also fixed on the transverse outer peripheral wall of the temperature regulating outer cylinder. The circulating water pump is located below the lateral support frame. The upper end of the circulating water pump is connected to the electric water heater through a pipe. The lower end of the circulating water pump is fixedly connected to a return water bend. The end of the return water bend is fixedly connected to the temperature regulating outer cylinder and communicates with the hot water inner cavity.

[0037] As an optimized solution, a side mounting bracket is fixed to the longitudinal outer peripheral wall of the temperature regulating outer cylinder. The lower end of the side mounting bracket is fixed to the longitudinal outer wall of the integrated base. A compressed air pump is fixed on the side mounting bracket. An air inlet pipe is fixedly connected to the compressed air pump. The end of the air inlet pipe is fixedly connected to the air inlet box. A flow regulating valve is provided on the air inlet pipe.

[0038] As an optimized solution, the end of the horizontal feeding box passes through the side wall of the temperature regulating outer cylinder and is fixedly connected to the cylindrical transfer box.

[0039] As an optimized solution, a motor mounting base is fixed on the lateral side end face of the integrated base. The motor mounting base is a U-shaped base with the opening facing downwards. The lower end of the motor mounting base is fixedly supported on the ground. A transmission clearance groove communicating with the motor mounting base is opened on the lower surface of the integrated base.

[0040] As an optimized solution, a rotary drive motor is fixed on the upper surface of the motor mounting base, and the output shaft end of the rotary drive motor passes downward through the motor mounting base and is fixed with a main drive wheel.

[0041] As an optimized solution, a secondary drive wheel is rotatably mounted on the inner top surface of the transmission clearance groove. The transmission connecting seat is rotatably passed through and supported on the wall of the cylindrical transfer box and the integrated base via a bearing. Its lower end is fixedly connected to the secondary drive wheel. A transmission belt is sleeved between the secondary drive wheel and the main drive wheel.

[0042] As an optimized solution, the material conveying unit further includes a pneumatic discharge assembly, which includes a discharge box. The discharge box is a square bent box. The upper half of the discharge box is fixed to the middle of the upper surface of the closed end cover, and the lower half of the discharge box is bent downward to the longitudinal side of the temperature regulating outer cylinder.

[0043] As an optimized solution, a negative pressure discharge air pump connected to the discharge box is fixed on the side end face near the lower opening. A baffle plate is rotatably provided inside the lower opening of the discharge box. A flip drive motor is fixed on the outer side wall of the discharge box. The end of the output shaft of the flip drive motor passes through the discharge box and is fixed to the side end face of the baffle plate.

[0044] As an optimized solution, a crushing drive motor is fixed in the middle of the upper surface of the discharge box. The output shaft of the crushing drive motor passes downward through the upper wall of the discharge box and is fixed with a crushing shaft. Several centrally symmetrical wear-resistant crushing plates are fixed on the lower outer peripheral wall of the crushing shaft.

[0045] Compared with the prior art, the beneficial effects of the present invention are: I. Flexible feeding and adjustable pre-depolymerization effectively solve the problem of material agglomeration and blockage. The equipment adopts a feeding structure with a flexible corrugated feed pipe and an open feed hopper, which can adapt to the feed pipelines at different angles and positions on the production line. It can adapt to various on-site working conditions without modifying the equipment installation position, and has extremely strong feeding adaptability. At the same time, an adjustable mechanical pre-deagglomeration structure is added before the crushing process. The roller gap can be dynamically adjusted through a telescopic deagglomeration pressure roller, which can adjust the extrusion distance in real time according to the size and degree of agglomeration of the ABS high-rubber powder.

[0046] The counter-rotating deagglomeration rollers mechanically crush and break up large, agglomerated ABS powder particles, eliminating the potential hazards of large material lumps at the source and completely preventing problems such as jamming, material blockage, and idling in subsequent feeding and crushing processes. Compared to traditional crushing equipment without pretreatment, this structure effectively solves the problem of ABS high-viscosity powder easily agglomerating due to its high viscosity, significantly improving equipment operational stability, reducing the frequency of equipment downtime for cleaning, and ensuring continuous operation of the production line.

[0047] 2. The twin-screw pneumatic conveyor structure prevents materials from sticking to the wall and bridging, improving the uniformity of feeding. The material conveying unit adopts a counter-rotating twin-screw feeding structure. The two screws rotate synchronously in opposite directions, which can uniformly and steadily push the dispersed powdered material, avoiding the problems of material deviation, uneven pushing, and local accumulation that exist in single-screw feeding, and ensuring a stable material conveying volume. At the same time, it is equipped with an air supply box and a conveying fan to form a co-directional auxiliary airflow, and the airflow continuously blows through the inside of the conveying channel in the direction of material feeding.

[0048] In response to the characteristics of ABS high-adhesion powder, such as strong adhesion, easy adhesion to the inner wall of equipment, and easy formation of bridging voids, the auxiliary airflow continuously disturbs the material, washes the inner wall of the box and the surface of the screw, effectively reduces material adhesion and accumulation, eliminates bridging and blockage in the conveying channel, and ensures continuous and smooth material conveying throughout the process. This provides a stable and uniform material supply for subsequent drying and crushing processes, ensuring the consistency of subsequent processing.

[0049] 3. The spiral circulating hot air heat exchange structure achieves all-round and uniform drying of materials, resulting in outstanding energy efficiency. This equipment abandons the traditional direct-blowing hot air drying structure and adopts a hot air generation structure with water circulation constant temperature heat exchange and spiral air guide. Through heating by an electric water heater and forced water circulation by a circulating water pump, a constant temperature heat exchange zone is formed in the inner cavity of the temperature regulating outer cylinder. The hot air temperature is highly controllable and stable, which can accurately adapt to the drying process requirements of ABS high-rubber powder, avoiding the problems of excessive temperature causing rubber powder deterioration and excessively low temperature causing incomplete drying.

[0050] The process gas, heated through heat exchange, forms a downward spiral of hot air under the constraint of the spiral guide plate. This hot air can completely envelop the material entering the crushing cylinder. Compared to ordinary direct-blowing hot air, the hot air has a larger contact area and longer contact time with the material, allowing it to penetrate the gaps between material particles and thoroughly remove deep moisture from the powder. This solves the problem of uneven drying, where the surface of the material remains damp while the interior remains moist, common in traditional equipment. Simultaneously, the water circulation heat exchange mode results in low heat loss, and the spiral hot air can recycle heat energy, significantly reducing the drying energy consumption of the equipment and improving energy efficiency. Furthermore, the isolation mesh at the spiral air inlet effectively prevents material from flowing back into the hot air channel, avoiding blockage of the hot air structure and ensuring the long-term stable operation of the hot air system.

[0051] IV. Combining airflow impact with mechanical pulverization improves pulverization precision and finished product quality. The equipment employs a combined pulverization mode that integrates high-speed mechanical pulverization with airflow impact pulverization, avoiding the limitations of a single pulverization method. On one hand, the high-speed rotating wear-resistant pulverizing plates subject the material to high-speed impact and shearing, achieving fine pulverization; on the other hand, the spiral swirling hot air forms a high-speed airflow field, causing continuous high-speed collisions and friction between material particles and between the material and the cylinder wall, further refining the material particles and achieving an ultra-fine pulverization effect.

[0052] Meanwhile, the upward airflow generated by the high-speed rotation of the impeller continuously lifts the material, suspending and dispersing it within the crushing chamber. This prevents material settling and accumulation, ensuring that every particle of ABS powder undergoes thorough crushing and drying. The composite crushing mode effectively guarantees uniform particle size and meets fineness standards for the finished ABS powder, significantly improving product quality and meeting the demands of high-end ABS powder applications. Compared to traditional single-powder crushing equipment, the finished product qualification rate is significantly improved.

[0053] V. Negative pressure closed discharge structure, preventing backflow, maintaining cleanliness, and ensuring efficient and stable discharge. The equipment adopts a negative pressure suction discharge structure. A negative pressure discharge air pump creates a stable negative pressure environment in the discharge box, which can quickly suck out qualified materials after drying and pulverizing. The discharge speed is uniform and efficient, with no material retention or accumulation. At the same time, it is equipped with an adaptive opening and closing structure of a rotatable baffle. When the equipment discharges, the baffle opens to ensure smooth material discharge. When the equipment is operating or undergoing negative pressure forming, the baffle closes to effectively prevent outside air and impurities from flowing back into the equipment.

[0054] This structure ensures the stability of the airflow and temperature fields inside the equipment, preventing external cold air and impurities from affecting the drying and pulverizing effect. It also ensures that the finished product is clean and free of impurities, improving product purity. At the same time, it prevents the loss of internal air pressure and temperature, indirectly reducing production energy consumption.

[0055] VI. Integrated design, strong equipment adaptability, and low operation and maintenance costs. All functional units of the machine are integrated and fixed on an integrated base, with a compact and reasonable modular layout. This eliminates the need for complex on-site assembly and splicing, resulting in a small footprint and convenient on-site installation, relocation, and commissioning. It is suitable for various small and medium-sized production workshops. Simultaneously, the centralized electrical control system enables coordinated operation of all units and seamless process integration. From feeding, depolymerization, conveying, drying, crushing to discharging, the entire process is fully automated, requiring no manual intervention, significantly reducing labor costs and improving the level of production automation.

[0056] Each functional structure is specifically adapted to the characteristics of ABS high-rubber powder materials, resulting in low equipment failure rate, minimal wear, long service life of wear-resistant crushing plates and other vulnerable parts, convenient maintenance and repair, effectively reducing equipment operation and maintenance costs and downtime losses, and significantly improving overall production efficiency and economic benefits. Attached Figure Description

[0057] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0058] Figure 1 This is a schematic diagram of the overall external structure of the present invention in the main viewing direction; Figure 2 This is a schematic diagram of the overall external structure of the present invention from a top-down perspective; Figure 3 This is a schematic diagram of the overall external structure of the present invention from the right-side view direction; Figure 4 This is an isometric schematic diagram of the three-dimensional structure of the present invention; Figure 5 For the present invention along Figure 2 A schematic diagram of the internal structure cut along line AA. Figure 6 For the present invention along Figure 1 A schematic diagram of the internal structure cut along the middle BB line; Figure 7 For the present invention along Figure 1 A schematic diagram of the internal structure cut along the CC line; Figure 8 For the present invention along Figure 1 A schematic diagram of the internal structure cut along the DD line in the middle; Figure 9 For the present invention along Figure 3 A half-section diagram of the three-dimensional structure cut along the EE line.

[0059] In the diagram: 1-Integrated base, 2-Electrical control box, 3-Feeding hopper, 4-Pre-depolymerization hopper, 5-Sealed cover, 6-Corrugated feed pipe, 7-Depolymerization roller, 8-Rotating mounting frame, 9-Adjustable telescopic cylinder, 10-Moving connection port, 11-Positioning bracket, 12-Rolling drive motor, 13-Horizontal feeding box, 14-Conveyor drive motor, 15-Feeding screw, 16-Air supply box, 17-Conveyor fan, 18-Temperature regulating outer cylinder, 19-Hot water inner cavity, 20-Side support frame, 21-Electric water heater, 22-Temperature sensor, 23-Inlet bend, 24-Circulating water pump, 25-Return bend, 26-Spiral air guide plate 27-Closed end cap, 28-Air inlet box, 29-Side mounting bracket, 30-Compressed air pump, 31-Air inlet pipe, 32-Flow regulating valve, 33-Cylindrical transfer box, 34-Motor mounting base, 35-Transmission clearance groove, 36-Rotation drive motor, 37-Main drive wheel, 38-Secondary drive wheel, 39-Transmission belt, 40-Transmission connection seat, 41-Feeding port, 42-Drive shaft, 43-Driving impeller, 44-Pulverizing inner cylinder, 45-Spiral air inlet, 46-Isolation net, 47-Discharge box, 48-Negative pressure discharge air pump, 49-Baffle plate, 50-Pulverizing drive motor, 51-Pulverizing shaft, 52-Wear-resistant pulverizing plate. Detailed Implementation

[0060] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0061] like Figures 1 to 9 As shown, the ABS high-rubber powder airflow impact pulverizing and drying integrated machine includes an integrated base 1, which is a square base that is horizontally fixed to the ground. The integrated base 1 is equipped with a feeding pre-depolymerization unit, an airflow impact pulverizing unit, a hot air generating unit, and a material conveying unit.

[0062] An electrical control box 2 is fixed to one side of the upper surface of the integrated base 1.

[0063] The feeding pre-depolymerization unit includes a feeding hopper 3, which is a square hopper with an open top and a gradually narrowing bottom. The lower end of the feeding hopper 3 is fixed with a pre-depolymerization waste box 4 that is connected to it. The pre-depolymerization waste box 4 is a square box with an open top, and the lower end of the pre-depolymerization waste box 4 is fixed on the upper surface of the integrated base 1.

[0064] The upper end of the feed hopper 3 is fixedly fitted with a closed cover 5, and the upper end of the closed cover 5 is fixed with a corrugated feed pipe 6. Multi-directional feeding can be achieved by bending the corrugated feed pipe 6.

[0065] Two transversely symmetrical and retractable depolymerization rollers 7 are rotatably mounted on the upper part of the pre-depolymerization box 4, and the depolymerization rollers 7 are longitudinally extended.

[0066] Each side of the pre-depolymerization box 4 is provided with a retractable rotating mounting frame 8. The rotating mounting frame 8 is a horizontally set, horizontally open C-shaped frame. The two ends of the rotating mounting frame 8 pass through the horizontal outer wall of the pre-depolymerization box 4 and extend to the outer side of the end face of the depolymerization pressure roller 7. The depolymerization pressure roller 7 is rotatably mounted on the rotating mounting frame 8.

[0067] An adjusting telescopic cylinder 9 is fixed on the transverse outer wall of the pre-disintegration aggregate box 4, and the telescopic end of the adjusting telescopic cylinder 9 is fixed to the transverse inner wall of the rotating mounting frame 8.

[0068] Two transversely symmetrical movable communication ports 10 are respectively opened on the longitudinal outer wall of each side of the pre-disintegration aggregate box 4.

[0069] Each movable connection port 10 is provided with a positioning bracket 11 on its outer side, and the positioning bracket 11 is fixedly connected to the rotating mounting bracket 8.

[0070] Two positioning brackets 11 located on the same side are fixed with rolling drive motors 12 on their outer end faces. The output shaft of the rolling drive motor 12 passes through the positioning brackets 11 and the rotating mounting bracket 8 and is fixed to the center of the side end face of the depolymerization roller 7.

[0071] The material conveying unit includes a twin-screw feeding assembly, which includes a horizontal feeding box 13. The horizontal feeding box 13 is a horizontally extending square box, and the lower end of the horizontal feeding box 13 is fixed on the upper surface of the integrated base 1.

[0072] One end of the horizontal feeding box 13 is fixed to the transverse outer wall of the pre-disintegrated aggregate box 4 and connected to it.

[0073] Two longitudinally symmetrical conveyor drive motors 14 are fixed on the transverse outer wall of the pre-disintegration aggregate bin 4, and the conveyor drive motors 14 are positioned directly opposite the horizontal feeding bin 13.

[0074] The output shaft of each conveyor drive motor 14 passes through the side wall of the pre-disintegrated aggregate box 4 and is fixed with a feeding screw 15. The end of the feeding screw 15 extends laterally and passes through the entire horizontal feeding box 13. The spiral blades on the two feeding screws 15 rotate in opposite directions.

[0075] An inclined air supply box 16 is fixed in the middle of the upper surface of the horizontal feeding box 13. The air supply box 16 is connected to the horizontal feeding box 13. A conveying fan 17 connected to the upper end face of the air supply box 16 is fixed. The conveying fan 17 can blow out a conveying airflow along the spiral feeding direction of the material to assist in material conveying.

[0076] The hot air generating unit includes a temperature regulating outer cylinder 18, which is a cylindrical cylinder with openings at the top and bottom. The lower end of the temperature regulating outer cylinder 18 is fixed to the upper surface of the integrated base 1.

[0077] The outer cylinder 18 for temperature regulation has a hot water inner cavity 19 in the middle.

[0078] A lateral support frame 20 is fixed on the transverse outer peripheral wall of the temperature regulating outer cylinder 18 near the feed hopper 3. The lateral support frame 20 is a U-shaped frame with the opening facing downwards, and the lower end of the lateral support frame 20 is fixed on the upper surface of the integrated base 1.

[0079] An electric water heater 21 is fixed in the middle of the upper surface of the lateral support frame 20. The electric water heater 21 is equipped with a temperature sensor 22, which is used to detect the outlet water temperature of the electric water heater 21 to control the heating power.

[0080] The upper end of the electric water heater 21 is fixedly connected to the water inlet bend 23, and the end of the water inlet bend 23 is fixedly connected to the temperature regulating outer cylinder 18 and communicates with the hot water inner cavity 19.

[0081] A circulating water pump 24 is also fixed on the transverse outer peripheral wall of the temperature regulating outer cylinder 18. The circulating water pump 24 is located below the lateral support frame 20. The upper end of the circulating water pump 24 is connected to the electric water heater 21 through a pipe. The lower end of the circulating water pump 24 is fixedly connected to a return water bend 25. The end of the return water bend 25 is fixedly connected to the temperature regulating outer cylinder 18 and connected to the hot water inner cavity 19.

[0082] Two spiral air guide plates 26 with the same direction of rotation and spaced apart are fixed on the inner circumferential wall of the temperature regulating outer cylinder 18, and the two spiral air guide plates 26 form a spiral air inlet channel.

[0083] A closed end cap 27 is fixed to the upper end of the temperature regulating outer cylinder 18. The closed end cap 27 is a horizontally set circular cap.

[0084] An air inlet box 28 is fixed on one longitudinal side of the upper surface of the closed end cover 27. The lower end of the air inlet box 28 is connected to the closed end cover 27 and is directly opposite the spiral air inlet channel.

[0085] A side mounting bracket 29 is fixed to the longitudinal outer peripheral wall of the temperature regulating outer cylinder 18. The lower end of the side mounting bracket 29 is fixed to the longitudinal outer wall of the integrated base 1. A compressed air pump 30 is fixed on the side mounting bracket 29. An air inlet pipe 31 is fixedly connected to the compressed air pump 30. The end of the air inlet pipe 31 is fixedly connected to the air inlet box 28. A flow regulating valve 32 is provided on the air inlet pipe 31.

[0086] The airflow impact pulverizing unit includes a cylindrical transfer box 33, which is located inside the temperature regulating outer cylinder 18 and fixed on the upper surface of the integrated base 1.

[0087] The end of the horizontal feed box 13 passes through the side wall of the temperature regulating outer cylinder 18 and is fixedly connected to the cylindrical transfer box 33.

[0088] A motor mounting base 34 is fixed on the lateral side end face of the integrated base 1. The motor mounting base 34 is a U-shaped seat with the opening facing downward. The lower end of the motor mounting base 34 is fixedly supported on the ground. A transmission clearance groove 35 communicating with the motor mounting base 34 is opened on the lower surface of the integrated base 1.

[0089] A rotary drive motor 36 is fixed on the upper surface of the motor mounting base 34. The output shaft of the rotary drive motor 36 passes downward through the motor mounting base 34 and is fixed with a main drive wheel 37.

[0090] A secondary drive wheel 38 is rotatably mounted on the inner top surface of the transmission clearance groove 35, and a transmission belt 39 is sleeved between the secondary drive wheel 38 and the main drive wheel 37.

[0091] A transmission connecting seat 40 is rotatably mounted in the middle of the inner bottom surface of the cylindrical transfer box 33. The transmission connecting seat 40 is rotatably passed through and supported on the wall of the cylindrical transfer box 33 and the integrated base 1 by bearings, and its lower end is fixedly connected to the auxiliary transmission wheel 38.

[0092] The upper surface of the cylindrical transfer box 33 has several centrally symmetrical feeding ports 41.

[0093] A drive shaft 42 is fixed at the center of the upper surface of the transmission connection seat 40. The upper end of the drive shaft 42 passes through the upper wall of the cylindrical transfer box 33 and is fixed with a flow guide fan 43.

[0094] The upper surface of the cylindrical transfer box 33 is fixed with a crushing inner cylinder 44, the upper end of the crushing inner cylinder 44 is fixed to the lower surface of the closed end cover 27, and the inner circumferential walls of the two spiral air guide plates 26 are fixed to the outer circumferential walls of the crushing inner cylinder 44.

[0095] A spiral air inlet 45 is provided on the outer peripheral wall of the crushing and processing inner cylinder 44. The spiral air inlet 45 is located between two spiral air guide plates 26, and an isolation net 46 is fixed inside the spiral air inlet 45.

[0096] The material conveying unit also includes a pneumatic discharge assembly, which includes a discharge box 47. The discharge box 47 is a square bent box. The upper part of the discharge box 47 is fixed to the middle of the upper surface of the closed end cover 27, and the lower part of the discharge box 47 is bent downward to the longitudinal side of the temperature regulating outer cylinder 18.

[0097] A negative pressure discharge air pump 48 is fixed on the side end face of the discharge box 47 near the lower opening and is connected to it. A baffle plate 49 is rotatably installed inside the lower opening of the discharge box 47. A flip drive motor for controlling the rotation of the baffle plate 49 is fixed on the outer wall of the discharge box 47. The end of the output shaft of the flip drive motor is fixed to the side end face of the baffle plate 49.

[0098] A crushing drive motor 50 is fixed in the middle of the upper surface of the discharge box 47. The output shaft of the crushing drive motor 50 passes downward through the upper wall of the discharge box 47 and is fixed with a crushing shaft 51. Several centrally symmetrical wear-resistant crushing plates 52 are fixed on the lower outer peripheral wall of the crushing shaft 51.

[0099] When using this invention: First, the ABS high-rubber powder material to be processed is fed into the feed box hopper 3 through the corrugated feed pipe 6. The corrugated feed pipe 6 can be flexibly bent to adapt to different incoming material pipelines on site, realizing multi-angle feeding. The material falls into the pre-disintegrated aggregate box 4 below.

[0100] Inside the pre-depolymerization box 4, a pair of retractable and adjustable depolymerization rollers 7 are arranged. By adjusting the telescopic cylinder 9, the rotating mounting frame 8 can be moved laterally, which can change the roller gap between the two depolymerization rollers 7. The roller drive motor 12 drives the depolymerization rollers 7 to rotate in opposite directions. Agglomerated and clumped ABS high-adhesion powder falls between the two rollers and is pre-depolymerized by the roller surface extrusion, which breaks up the large agglomerated materials, eliminates material agglomeration, and prevents large materials from blocking the subsequent feeding mechanism. The roller gap can be adjusted in real time according to the degree of agglomeration of the incoming material.

[0101] After pre-deagglomeration and dispersion, the material is fed into the horizontal feeding box 13 by the twin-screw feeding assembly. Two conveying drive motors 14 drive two feeding screws 15 with opposite rotation directions to push the material smoothly towards the cylindrical transfer box 33. The horizontal feeding box 13 is equipped with an air supply box 16 and a conveying fan 17. The airflow output by the conveying fan 17 is blown into the horizontal feeding box 13 along the material feeding direction of the screw, forming an auxiliary conveying airflow, reducing the adhesion and accumulation of material on the screw and the inner wall of the box, improving the continuity of feeding, and avoiding ABS powder bridging and clogging.

[0102] The hot air generation unit then prepares the process hot air. The electric water heater 21 heats the medium water, and the circulating water pump 24 drives the hot water to circulate in the hot water cavity 19 of the temperature regulating outer cylinder 18. The space inside the cylinder is heated by the heat exchange of hot water. The compressed air pump 30 outputs process gas. The gas is sent into the air inlet box 28 after the air inlet flow is regulated by the flow regulating valve 32. The gas enters the temperature regulating outer cylinder 18 and flows downward in a spiral along the spiral air inlet channel formed by the two spiral air guide plates 26. During the flow, it completes heat exchange with the hot water cavity 19 and heats up to form a spiral hot air. The hot air passes through the spiral air inlet 45 on the outer wall of the crushing inner cylinder 44 and enters the interior of the crushing inner cylinder 44 through the isolation net 46. The isolation net 46 can prevent the material from flowing back into the hot air channel.

[0103] Material pushed by the feeding screw 15 enters the cylindrical transfer box 33, and then enters the crushing inner cylinder 44 through multiple centrally symmetrically arranged feeding ports 41 on the upper surface of the cylindrical transfer box 33. The rotation drive motor 36 drives the transmission connecting seat 40, transmission shaft 42 and guide fan 43 to rotate at high speed through the main transmission wheel 37, transmission belt 39 and auxiliary transmission wheel 38. The high-speed rotation of the guide fan 43 generates an upward guiding wind force, which lifts the material fed from the cylindrical transfer box 33 upward. The material is in full contact with the spiraling downward high-temperature hot air inside the crushing inner cylinder 44, and is dried by the hot air while moving at high speed with the airflow.

[0104] The crushing drive motor 50 drives the crushing shaft 51 and multiple wear-resistant crushing plates 52 to rotate at high speed. The high-speed moving ABS high-rubber powder material continuously impacts the wear-resistant crushing plates 52. At the same time, airflow impacts and collisions occur between the material particles and between the material and the cylinder wall, completing the ultra-fine crushing operation. The spiral hot air provides a drying heat source on the one hand, taking away the moisture inside the rubber powder, and on the other hand, it forms a swirling field to enhance the particle collision and impact effect, while also playing a fluidizing and conveying role for the crushed material.

[0105] During the material crushing process, the flow rates of the conveying fan 17, the compressed air pump 30, and the negative pressure discharge air pump 48 can be precisely controlled. Under the combined action of the upward airflow from the induced draft fan 43 and the downward spiral hot air, the material is in a fluidized state in the crushing chamber for crushing and drying. Under the suction action of the negative pressure discharge air pump 48, the qualified material that has been crushed is carried upward with the airflow into the discharge box 47.

[0106] The qualified material that has been crushed and dried is carried upward into the discharge box 47 by the airflow. The negative pressure discharge air pump 48 creates negative pressure at the lower end of the discharge box 47 to suck the finished material out of the equipment. A rotatable baffle 49 is set at the lower end of the discharge box 47. When not discharging, the baffle 49 rotates and closes to prevent backflow of outside air. When discharging, the baffle 49 rotates and opens under the control of the flip drive motor to ensure smooth discharge.

[0107] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. An integrated airflow impact pulverizing and drying machine for high-resin ABS powder, characterized in that: The system includes an integrated base, on which are respectively provided a feeding pre-depolymerization unit, an airflow impact pulverizing unit, a hot air generating unit, and a material conveying unit; The hot air generating unit includes a temperature regulating outer cylinder, which is a cylindrical cylinder with openings at the top and bottom. The lower end of the temperature regulating outer cylinder is fixed to the upper surface of the integrated base. The outer cylinder for temperature regulation is provided with a hot water inner cavity in the middle; Two spiral air guide plates with the same direction of rotation and spaced apart are fixed on the inner circumferential wall of the temperature regulating outer cylinder, and the two spiral air guide plates form a spiral air inlet channel. The upper end of the temperature regulating outer cylinder is fixed with a closed end cap, which is a horizontally set circular cap. An air inlet box is fixed on one longitudinal side of the upper surface of the closed end cover, and the lower end of the air inlet box is connected to the closed end cover and is directly opposite the spiral air inlet channel. The airflow impact pulverizing unit includes a cylindrical transfer box, which is located inside the temperature regulating outer cylinder and fixed on the upper surface of the integrated base. A transmission connection seat is rotatably installed in the middle of the inner bottom surface of the cylindrical transfer box, and several centrally symmetrical feeding ports are opened on the upper surface of the cylindrical transfer box. A drive shaft is fixed at the center of the upper surface of the transmission connection seat, and the upper end of the drive shaft passes through the upper wall of the cylindrical transfer box and is fixed with a flow guide fan. The upper surface of the cylindrical transfer box is fixed with a crushing and processing inner cylinder, the upper end of which is fixed to the lower surface of the closed end cover, and the inner circumferential walls of the two spiral air guide plates are fixed to the outer circumferential walls of the crushing and processing inner cylinder. A spiral air inlet is provided on the outer peripheral wall of the crushing and processing inner cylinder. The spiral air inlet is located between two spiral air guide plates, and an isolation net is fixed inside the spiral air inlet.

2. The integrated airflow impact pulverizing and drying machine for ABS high-rubber powder according to claim 1, characterized in that: The integrated base is a square base that is horizontally fixed to the ground, and an electrical control box is fixed to one side of the upper surface of the integrated base.

3. The integrated airflow impact pulverizing and drying machine for ABS high-rubber powder according to claim 2, characterized in that: The feeding pre-depolymerization unit includes a feeding hopper, which is a square hopper with an open top and a gradually narrowing bottom. A pre-depolymerization waste box is fixed to the lower end of the feeding hopper and communicates with it. The pre-depolymerization waste box is a square box with an open top, and the lower end of the pre-depolymerization waste box is fixed to the upper surface of the integrated base. The upper end of the feed hopper is fixedly fitted with a closed cover, and the upper end of the closed cover is fixed with a corrugated feed pipe.

4. The integrated airflow impact pulverizing and drying machine for ABS high-rubber powder according to claim 3, characterized in that: The pre-depolymerization box has two transversely symmetrical and retractable depolymerization rollers rotatably mounted inside the upper part of the box, and the depolymerization rollers are arranged to extend longitudinally. Each of the two transverse sides of the pre-depolymerization box is provided with a rotating mounting frame. The rotating mounting frame is a horizontally set C-shaped frame with a transverse opening. The two ends of the rotating mounting frame pass through the transverse outer wall of the pre-depolymerization box and extend to the outer side of the end face of the depolymerization pressure roller. The depolymerization pressure roller is rotatably mounted on the rotating mounting frame. An adjustable telescopic cylinder is fixed on the transverse outer wall of the pre-disintegrated aggregate bin, and the telescopic end of the adjustable telescopic cylinder is fixed to the transverse inner wall of the rotating mounting frame.

5. The integrated airflow impact pulverizer and dryer for ABS high-rubber powder according to claim 4, characterized in that: Two transversely symmetrical movable communication ports are respectively opened on the longitudinal outer wall of each side of the pre-disintegrated aggregate box; Each of the movable communication ports is provided with a positioning bracket on its outer side, and the positioning bracket is fixedly connected to the rotating mounting bracket; Rolling drive motors are fixed on the outer end faces of the two positioning brackets located on the same side. The output shaft ends of the rolling drive motors pass through the positioning brackets and the rotating mounting bracket and are fixed to the center of the side end face of the depolymerization roller.

6. The integrated airflow impact pulverizing and drying machine for ABS high-rubber powder according to claim 5, characterized in that: The material conveying unit includes a twin-screw feeding assembly, which includes a horizontal feeding box. The horizontal feeding box is a horizontally extending square box, and the lower end of the horizontal feeding box is fixed to the upper surface of the integrated base. One end of the horizontal feeding box is fixed to and connected to the transverse outer wall of the pre-disintegrated aggregate box; Two longitudinally symmetrical conveyor drive motors are fixed on the transverse outer wall of the pre-disintegrated aggregate box, and the conveyor drive motors are positioned directly opposite the horizontal feeding box. The output shaft of each of the conveying drive motors passes through the side wall of the pre-disintegrated aggregate bin and is fixed with a feeding screw. The end of the feeding screw extends laterally and passes through the entire horizontal feeding bin. The spiral blades on the two feeding screws rotate in opposite directions. An inclined air supply box is fixed in the middle of the upper surface of the horizontal feeding box. The air supply box is connected to the horizontal feeding box. A conveying fan is fixed and connected to the upper end of the air supply box. The conveying fan can blow out a conveying airflow that flows along the spiral feeding direction of the material.

7. The integrated airflow impact pulverizer and dryer for ABS high-rubber powder according to claim 6, characterized in that: A lateral support frame is fixed on the transverse outer peripheral wall of the temperature regulating outer cylinder near the feed hopper. The lateral support frame is a U-shaped frame with the opening facing downwards, and the lower end of the lateral support frame is fixed on the upper surface of the integrated base. An electric water heater is fixed to the middle of the upper surface of the lateral support frame. An inlet bend is fixedly connected to the upper end of the electric water heater. The end of the inlet bend is fixedly connected to the temperature regulating outer cylinder and communicates with the hot water inner cavity. A circulating water pump is also fixed on the transverse outer peripheral wall of the temperature regulating outer cylinder. The circulating water pump is located below the lateral support frame. The upper end of the circulating water pump is connected to the electric water heater through a pipe. The lower end of the circulating water pump is fixedly connected to a return water bend. The end of the return water bend is fixedly connected to the temperature regulating outer cylinder and communicates with the hot water inner cavity.

8. The integrated airflow impact pulverizer and dryer for ABS high-rubber powder according to claim 7, characterized in that: A side mounting bracket is fixed to the longitudinal outer peripheral wall of the temperature regulating outer cylinder. The lower end of the side mounting bracket is fixed to the longitudinal outer wall of the integrated base. A compressed air pump is fixed on the side mounting bracket. An air inlet pipe is fixedly connected to the compressed air pump. The end of the air inlet pipe is fixedly connected to the air inlet box. A flow regulating valve is provided on the air inlet pipe.

9. The integrated airflow impact pulverizing and drying machine for ABS high-rubber powder according to claim 8, characterized in that: The end of the horizontal feeding box passes through the side wall of the temperature regulating outer cylinder and is fixedly connected to the cylindrical transfer box; A motor mounting base is fixed on the lateral side end face of the integrated base. The motor mounting base is a U-shaped base with the opening facing downwards. The lower end of the motor mounting base is fixedly supported on the ground. A transmission clearance groove communicating with the motor mounting base is opened on the lower surface of the integrated base. A rotary drive motor is fixed on the upper surface of the motor mounting base, and the output shaft of the rotary drive motor passes downward through the motor mounting base and is fixed with a main drive wheel. A secondary drive wheel is rotatably mounted on the inner top surface of the transmission clearance groove. The transmission connecting seat is rotatably passed through and supported on the wall of the cylindrical transfer box and the integrated base via a bearing. Its lower end is fixedly connected to the secondary drive wheel. A transmission belt is sleeved between the secondary drive wheel and the main drive wheel.

10. The integrated airflow impact pulverizer and dryer for ABS high-rubber powder according to claim 9, characterized in that: The material conveying unit also includes a pneumatic discharge assembly, which includes a discharge box. The discharge box is a square bent box. The upper part of the discharge box is fixed to the middle of the upper surface of the closed end cover, and the lower part of the discharge box is bent downward to the longitudinal side of the temperature regulating outer cylinder. A negative pressure discharge air pump connected to the discharge box is fixed on the side end face near the lower opening. A baffle plate is rotatably provided inside the lower opening of the discharge box. A tilting drive motor is fixed on the outer side wall of the discharge box. The end of the output shaft of the tilting drive motor passes through the discharge box and is fixed to the side end face of the baffle plate. A crushing drive motor is fixed in the middle of the upper surface of the discharge box. The output shaft of the crushing drive motor passes downward through the upper wall of the discharge box and is fixed with a crushing shaft. Several centrally symmetrical wear-resistant crushing plates are fixed on the lower outer peripheral wall of the crushing shaft.

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