Polystyrene foamed bead granulating equipment with waste heat recovery function
By introducing a waste heat recovery chamber and a push-pull rod gear mechanism into the polystyrene foam bead granulation equipment, the efficient recovery and reuse of waste heat is achieved, solving the problem of heat waste during the drying process and improving drying efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 浙江丰源实业有限公司
- Filing Date
- 2025-06-25
- Publication Date
- 2026-04-24
AI Technical Summary
Existing polystyrene foam bead granulation equipment suffers from waste heat and low heat utilization efficiency during the drying process.
A polystyrene foamed bead granulation device with waste heat recovery function was designed. By setting a waste heat recovery chamber between the inner shell and the outer shell, the heat in the waste heat recovery chamber is introduced into the drying cylinder by using a heat conduction plate and an air pump. Combined with a push-pull rod and gear mechanism, the reciprocating rotation of the drying cylinder and the directional delivery of hot air are realized, thereby improving the hot air range and drying efficiency.
It achieves effective recovery and reuse of waste heat, improves the drying efficiency of polystyrene particles, and solves the problem of insufficient heat utilization in traditional equipment.
Smart Images
Figure CN224158682U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of polystyrene particle technology, and more specifically, to a polystyrene foaming bead granulation equipment with waste heat recovery function. Background Technology
[0002] Polystyrene granules are a polymer synthesized from styrene monomers through free radical polymerization. It is a colorless, transparent, rigid plastic with high transparency, high rigidity, and a relatively high glass transition temperature (80–105°C). However, due to its rigid molecular structure, it also exhibits a degree of brittleness. It is commonly used in the preparation of foamed materials, such as polystyrene foams. This material is lightweight, heat-insulating, and sound-insulating, thus finding wide applications in packaging, construction, and handicrafts.
[0003] In the process of polystyrene foaming bead granulation, it is necessary to dry the polystyrene granules. However, some existing drying devices generate a lot of waste heat when in use, and the heat cannot be fully utilized, resulting in low efficiency of the drying device in the production and drying process of polystyrene granules.
[0004] Therefore, a polystyrene foam bead granulation equipment with waste heat recovery function is proposed to address the above problems. Utility Model Content
[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a polystyrene foamed bead granulation equipment with waste heat recovery function to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a polystyrene foamed bead granulation device with waste heat recovery function, comprising an inner shell and an outer shell, the outer shell being disposed outside the inner shell, a waste heat recovery chamber being disposed between the inner shell and the outer shell, a plurality of inclined plates being disposed on the inner sidewall of the inner shell, a drying cylinder being rotatably connected to the inner sidewall of the inner shell at the lowest end of each inclined plate, a nozzle being disposed on the surface of the drying cylinder, one end of the drying cylinder being connected to the waste heat recovery chamber through a waste heat recovery component, and the other end of the drying cylinder being fixedly connected to a gear through a rotating shaft, a rack being slidably disposed on the surface of the outer shell and meshing with the gear, two racks being fixedly connected by a connecting plate, a turntable being disposed on the outer sidewall of the outer shell, a connecting post being fixedly disposed at the edge of the turntable surface, and a push-pull rod being rotatably connected between the surface of the connecting plate and the connecting post at the edge of the turntable surface.
[0007] Preferably, the waste heat recovery assembly includes a heat-conducting plate, a first connecting pipe, a second connecting pipe, and an air pump. One end of each of the drying cylinders is rotatably connected to the first connecting pipe. An air pump is installed on the outer wall of the outer shell. The output end of the air pump is connected to the first connecting pipe through the second connecting pipe. The input end of the air pump is connected to the waste heat recovery chamber through a connecting pipe. A plurality of heat-conducting plates are installed inside the waste heat recovery chamber, and one side of each of the heat-conducting plates is fixedly connected to the side wall of the inner shell.
[0008] Preferably, heating wire assemblies are provided inside the inner shell and at symmetrical positions of multiple drying cylinders, and a protective net is provided on the inner sidewall of the inner shell and outside the multiple heating wire assemblies.
[0009] Preferably, the bottom wall of the inner shell is provided with a discharge port, and the top of the inner shell is provided with a feed port that is connected and communicates with the inner shell.
[0010] Preferably, a plurality of air inlets are provided at equal intervals at the top of the outer casing, and a one-way valve is installed inside the outer casing at each air inlet position.
[0011] Preferably, a servo motor is bolted to the outer wall of the outer casing, and the output end of the servo motor is connected to the center of the turntable via a coupling.
[0012] Preferably, the outer wall of the outer casing is fixedly connected to two limiting seats that respectively limit the rack.
[0013] Preferably, the rotation of the turntable drives the connecting plate to reciprocate via a push-pull rod, the rack drives the gear to perform periodic forward and reverse rotation, the drying cylinder rotates synchronously with the gear, and the spray direction of the nozzle matches the inclination angle of the inclined plate. The start-stop frequency of the air pump is synchronized with the rotation cycle of the turntable. When the turntable rotates to the maximum stroke of the push-pull rod, the air pump starts and directionally transports the heat in the waste heat recovery chamber to the nozzle of the drying cylinder through the first connecting pipe and the second connecting pipe.
[0014] The technical effects and advantages of this utility model are as follows:
[0015] 1. Compared with existing technologies, the waste heat recovery component can recover heat from the waste heat recovery chamber and, through the cooperation of the drying cylinder and the nozzle, transport it back into the inner shell to dry the polystyrene particles sliding on the inclined plate. Simultaneously, through the cooperation of the push-pull rod and the turntable, the connecting plate is reciprocated. The reciprocating connecting plate is fixedly connected to two racks, which in turn drive the two racks to reciprocate. Through the meshing connection of the reciprocating racks with the gears, the gears and the drying cylinder fixedly connected to the gears via the rotating shaft reciprocate, thereby increasing the range of hot air blown out by the nozzles on the surface of the drying cylinder and improving the drying effect on the polystyrene particles sliding on the inclined plate. Attached Figure Description
[0016] Figure 1 This is a first-person perspective three-dimensional structural diagram of the present invention.
[0017] Figure 2 This is a cross-sectional structural diagram of the present invention.
[0018] Figure 3 This is a two-dimensional structural diagram of the present invention from a second perspective.
[0019] Figure 4 This is a partial three-dimensional structural diagram of the present invention.
[0020] The attached figures are labeled as follows: 1. Inner shell; 2. Outer shell; 3. Waste heat recovery chamber; 4. Heat conducting plate; 5. Heating wire assembly; 6. Protective net; 7. Drying cylinder; 8. Nozzle; 9. Gear; 10. Rack; 11. Limiting seat; 12. Connecting plate; 13. Push-pull rod; 14. Turntable; 15. Inclined plate; 16. Discharge port; 17. Feed port; 18. First connecting pipe; 19. Second connecting pipe; 20. Air pump; 21. Air inlet. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Example 1
[0023] As attached Figures 1 to 4The polystyrene foamed bead granulation equipment shown includes an inner shell 1 and an outer shell 2. The outer shell 2 is disposed outside the inner shell 1. A waste heat recovery chamber 3 is disposed between the inner shell 1 and the outer shell 2. Several inclined plates 15 are disposed on the inner side wall of the inner shell 1. A drying cylinder 7 is rotatably connected to the inner side wall of the inner shell 1 at the lowest end of each inclined plate 15. The surface of the drying cylinder 7 is provided with nozzles 8. One end of the drying cylinder 7 is connected to the waste heat recovery chamber 3 through a waste heat recovery assembly. The other end of the drying cylinder 7 is fixedly connected to a gear 9 through a rotating shaft. The surface of the outer shell 2 is smooth. The outer casing 2 is equipped with a rack 10 that meshes with the gear 9. Two limit seats 11 are fixedly connected to the outer wall of the outer casing 2 to limit the rack 10. The two racks 10 are fixedly connected by a connecting plate 12. A turntable 14 is provided on the outer wall of the outer casing 2. A connecting post is fixedly provided at the edge of the surface of the turntable 14. A push-pull rod 13 is rotatably connected between the surface of the connecting plate 12 and the connecting post at the edge of the surface of the turntable 14. Finally, a servo motor is bolted to the outer wall of the outer casing 2, and the output end of the servo motor is connected to the center of the turntable 14 through a coupling.
[0024] In use, the device first drives the turntable 14 to rotate via a servo motor. Then, the push-pull rod 13, which is rotatably connected between the rotating turntable 14 and the connecting plate 12, pushes the connecting plate 12 and the two racks 10 connected to the connecting plate 12 to reciprocate under the limiting action of the limiting seat 11. The two racks 10 reciprocate and reciprocate are connected to the gear 9, thereby causing the gear 9 and the drying cylinder 7, which is fixedly connected to the gear 9 via a rotating shaft, to reciprocate. This increases the range of hot air blown out by the nozzles 8 on the surface of the drying cylinder 7 and improves the drying effect on the polystyrene particles sliding on the surface of the inclined plate 15.
[0025] Example 2
[0026] Based on Example 1, the solution in Example 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 4 As shown below, see details:
[0027] In a preferred embodiment, the waste heat recovery assembly includes heat-conducting plates 4, a first connecting pipe 18, a second connecting pipe 19, and an air pump 20. Several drying cylinders 7 are rotatably connected to the first connecting pipe 18 at one end. An air pump 20 is installed on the outer wall of the outer shell 2. The output end of the air pump 20 is connected to the first connecting pipe 18 via the second connecting pipe 19, and the input end of the air pump 20 is connected to the waste heat recovery chamber 3 via a connecting pipe. Several heat-conducting plates 4 are installed inside the waste heat recovery chamber 3, and one side of each heat-conducting plate 4 is fixedly connected to the side wall of the inner shell 1. Several heat-conducting plates are evenly spaced at the top of the outer shell 2. Each air inlet 21 is installed inside the outer shell 2, and a one-way valve is installed at each corresponding position of the air inlet 21. Furthermore, during waste heat recovery, the excess heat on the outer wall of the inner shell 1 is first introduced into the waste heat recovery chamber 3 through the heat conduction plate 4. Then, the air pump 20 extracts the heat from the waste heat recovery chamber 3 through the connecting pipe, and then introduces it into multiple drying cylinders 7 through the second connecting pipe 19 and the first connecting pipe 18. Finally, the heat is discharged back into the inner shell 1 through the nozzles 8 set on the surface of the drying cylinder 7, and the polystyrene particles sliding on the inclined plate 15 are dried by the nozzles 8.
[0028] In a preferred embodiment, heating wire assemblies 5 are provided inside the inner shell 1 and at symmetrical positions of the multiple drying cylinders 7. A protective net 6 is provided on the inner side wall of the inner shell 1 and outside the multiple heating wire assemblies 5. A discharge port 16 is provided on the bottom wall of the inner shell 1, and a feed port 17 connected and communicating with the inner shell 1 is provided at the top of the inner shell 1. Furthermore, when the device is in use, the power supply of the heating wire assembly 5 can be turned on first to heat the inside of the inner shell 1. Then, the polystyrene particles are poured in through the feed port 17, and then guided by multiple inclined plates 15 to be dried inside the inner shell 1. Finally, the dried polystyrene particles are discharged through the discharge port 16.
[0029] The working process of this utility model is as follows: First, the inner shell 1 is heated by the heating wire assembly 5. Then, polystyrene granules are poured in through the feed port 17 and guided by multiple inclined plates 15 to be dried inside the inner shell 1. Finally, the dried polystyrene granules are discharged through the discharge port 16. When the polystyrene granules slide on the surface of the inclined plates 15, the excess heat from the outer wall of the inner shell 1 can be first introduced into the waste heat recovery chamber 3 through the heat conduction plate 4. Then, the air pump 20 extracts the heat from the waste heat recovery chamber 3 through the connecting pipe, and then introduces it into multiple drying cylinders 7 through the second connecting pipe 19 and the first connecting pipe 18. Finally, the heat is discharged back into the inner shell 1 through the nozzles 8 set on the surface of the drying cylinders 7, and the polystyrene granules sliding on the inclined plates 15 are dried by the nozzles 8, thereby improving the production and drying effect of polystyrene granules. The turntable 14 The rotation drives the connecting plate 12 to reciprocate through the push-pull rod 13. The rack 10 drives the gear 9 to perform periodic forward and reverse rotation. The drying cylinder 7 rotates synchronously with the gear 9, and the spray direction of the nozzle 8 matches the tilt angle of the inclined plate 15. The start-stop frequency of the air pump 20 is synchronized with the rotation cycle of the turntable 14. The start-stop logic of the air pump 20 is bound to the motion cycle of the turntable 14 to avoid the timing conflict between waste heat recovery and drying actions, thereby improving energy utilization. When the turntable 14 rotates to the maximum stroke of the push-pull rod 13, the air pump 20 starts and directionally transports the heat in the waste heat recovery chamber 3 to the nozzle 8 of the drying cylinder 7 through the first connecting pipe 18 and the second connecting pipe 19. Based on the mechanical linkage relationship between the turntable 14, the push-pull rod 13, and the rack 10, the synergistic effect of limiting the periodic rotation of the drying cylinder 7 and the spray direction of the nozzle 8 is limited, solving the problem of uneven heating of materials in traditional equipment.
[0030] When it is necessary to adjust the rotation of the drying cylinder 7 and the nozzle 8, the turntable 14 can be driven to rotate by the servo motor first. Then, the push-pull rod 13, which is rotatably connected between the rotating turntable 14 and the connecting plate 12, pushes the connecting plate 12 and the two racks 10 connected to the connecting plate 12 to move back and forth under the limiting action of the limiting seat 11. The two racks 10 that move back and forth are meshed with the gear 9, thereby causing the gear 9 and the drying cylinder 7, which is fixedly connected to the gear 9 through the rotating shaft, to rotate back and forth. This increases the range of hot air blown out by the nozzle 8 on the surface of the drying cylinder 7 and improves the drying effect on the polystyrene particles sliding on the surface of the inclined plate 15. The above is the working principle of this polystyrene foamed bead granulation equipment with waste heat recovery function.
Claims
1. A polystyrene foamed bead granulation apparatus with waste heat recovery function, comprising an inner shell (1) and an outer shell (2), characterized in that: An outer shell (2) is provided on the outside of the inner shell (1). A waste heat recovery chamber (3) is provided between the inner shell (1) and the outer shell (2). Several inclined plates (15) are provided on the inner side wall of the inner shell (1). A drying cylinder (7) is rotatably connected to the inner side wall of the inner shell (1) at the lowest end of each inclined plate (15). A nozzle (8) is provided on the surface of the drying cylinder (7). One end of the drying cylinder (7) is connected to the waste heat recovery chamber (3) through a waste heat recovery assembly. The other end of the dry cylinder (7) is fixedly connected to the gear (9) via a rotating shaft. A rack (10) that meshes with the gear (9) is slidably provided on the surface of the outer shell (2). The two racks (10) are fixedly connected by a connecting plate (12). A turntable (14) is provided on the outer wall of the outer shell (2). A connecting post is fixedly provided at the edge of the surface of the turntable (14). A push-pull rod (13) is rotatably connected between the surface of the connecting plate (12) and the connecting post at the edge of the surface of the turntable (14).
2. The polystyrene foamed bead granulating apparatus having a waste heat recovery function according to claim 1, characterized by: The waste heat recovery assembly includes a heat-conducting plate (4), a first connecting pipe (18), a second connecting pipe (19), and an air pump (20). One end of each of the drying cylinders (7) is rotatably connected to the first connecting pipe (18). An air pump (20) is provided on the outer wall of the outer shell (2). The output end of the air pump (20) is connected to the first connecting pipe (18) through the second connecting pipe (19). The input end of the air pump (20) is connected to the waste heat recovery chamber (3) through a connecting pipe. A number of heat-conducting plates (4) are provided in the waste heat recovery chamber (3), and one side of each of the heat-conducting plates (4) is fixedly connected to the side wall of the inner shell (1).
3. The polystyrene expanded bead prilling apparatus with waste heat recovery function according to claim 1, characterized in that: Heating wire assemblies (5) are provided inside the inner shell (1) and at symmetrical positions of multiple drying cylinders (7). A protective net (6) is provided on the inner side wall of the inner shell (1) and outside the multiple heating wire assemblies (5).
4. The polystyrene expanded bead prilling apparatus with waste heat recovery function according to claim 1, characterized in that: The bottom wall of the inner shell (1) is provided with a discharge port (16), and the top of the inner shell (1) is provided with a feed port (17) that is connected and communicates with the inner shell (1).
5. The polystyrene expanded bead prilling apparatus with waste heat recovery function according to claim 1, characterized in that: The top of the outer shell (2) is provided with several air inlets (21) at equal intervals, and a one-way valve is installed inside the outer shell (2) at each air inlet (21).
6. The polystyrene expanded bead prilling apparatus with waste heat recovery function according to claim 1, characterized in that: A servo motor is bolted to the outer wall of the outer shell (2), and the output end of the servo motor is connected to the center of the turntable (14) via a coupling.
7. The polystyrene expanded bead prilling apparatus with waste heat recovery function according to claim 1, characterized in that: The outer wall of the outer shell (2) is fixedly connected to two limiting seats (11) that limit the rack (10) respectively.
8. The polystyrene expanded bead prilling apparatus with waste heat recovery function according to claim 2, characterized in that: The rotation of the turntable (14) drives the connecting plate (12) to reciprocate through the push-pull rod (13). The rack (10) drives the gear (9) to perform periodic forward and reverse rotation. The drying cylinder (7) rotates synchronously with the gear (9). The spray direction of the nozzle (8) matches the tilt angle of the inclined plate (15). The start and stop frequency of the air pump (20) is synchronized with the rotation cycle of the turntable (14). When the turntable (14) rotates to the maximum stroke of the push-pull rod (13), the air pump (20) starts and directs the heat in the waste heat recovery chamber (3) to the nozzle (8) of the drying cylinder (7) through the first connecting pipe (18) and the second connecting pipe (19).