Supercritical foaming elastomer drying device

Abstract

The utility model relates to the technical field of elastomers, in particular to a supercritical foaming elastomer drying device which comprises a shell, the shell comprises a feeding pipe, a transmission frame, a screen frame, a motor, a transmission structure and a discharging pipe, the feeding pipe is fixed to the top end of the shell, the transmission frame is fixedly connected to the inner top end of the shell, and the motor is fixedly connected to the bottom end of the shell. Through sieving, uneven heating or local degradation during drying can be avoided, and the material purity is guaranteed; for the high-hygroscopicity elastomer, the subsequent foaming defect caused by impurity adsorption can be reduced through sieving; the particle uniformity is optimized, elastomer particles with uniform particle sizes can be screened out through screening, it is ensured that the heat transfer efficiency and the moisture escape efficiency are consistent in the drying process, and the drying effect is improved; the uniform particles are easier to form a stable gas saturation state in the supercritical fluid, so that the uniformity of subsequent foaming cells is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of elastomer technology, specifically to a supercritical foamed elastomer drying device. Background Technology

[0002] Supercritical elastomers are hygroscopic, and residual moisture can lead to uneven bubble distribution or pore wall rupture during foaming under high temperature and pressure. Drying the matrix can enhance the dissolution and diffusion capacity of supercritical CO2 / N2 in the polymer and shorten the saturation impregnation time. However, if the raw materials of supercritical elastomers contain foreign matter or agglomerated particles, uneven heating or local degradation can easily occur without sieving, reducing the purity of the material. Uneven particle size can also lead to inconsistent heat transfer and escape efficiency during the drying process, reducing the drying effect. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a supercritical foamed elastomer drying device, which has the following advantages.

[0004] To achieve the above-mentioned functional objectives, this utility model provides the following technical solution: a supercritical foamed elastomer drying device, comprising a shell, the shell including an inlet pipe, a transmission frame, a screen frame, a motor, a transmission structure, and an outlet pipe. The inlet pipe is fixed to the top of the shell, the transmission frame is fixedly connected to the top of the shell, the motor is fixedly connected to the bottom of the shell, the transmission structure is connected to the output end of the motor, the screen frame is connected to one side of the transmission structure, the outlet pipe is fixedly connected to the bottom of the shell, a top cover is fixed to the connection end of the shell and the inlet pipe, a pressure angle is rotatably connected to the side of the shell near the top cover, a pin is connected to one side of the pressure angle, valves are fixedly connected to the connection ends of the inlet pipe, the outlet pipe and the shell, an electric heating wire layer is fixed to the inner side wall of the shell, the electric heating wire layer heats and dries the inside of the shell, a pin groove is fixedly connected to the top of the top cover, and the pressure angle is positioned and connected to one side of the top cover by the pin.

[0005] Furthermore, the transmission frame includes a fixed frame, which is fixedly connected to the inner side wall of the housing. The transmission frame has two springs, both of which are fixedly connected to the fixed frame. The slider of the transmission frame is slidably connected to the fixed frame. The transmission frame has two limiting posts, both of which are fixedly connected to both sides of the slider of the transmission frame. The limiting posts of the transmission frame pass through the springs of the transmission frame. There are two fixed frames, one of which is located at the top of the housing, and the other is connected to the bottom of the screen frame. One end of the spring of the transmission frame is fixedly connected to the side of the slider of the transmission frame.

[0006] Furthermore, the screen frame includes a limiting ring and a screen cylinder. The limiting ring includes, but is not limited to, two rings. One limiting ring is fixedly connected to the bottom end of the fixed frame near the feed pipe, and the other limiting ring is fixed to the top end of the fixed frame near the top end of the bottom drive shaft. The limiting ring includes an inner ring and an outer ring. The screen cylinder is located in the gap between the inner ring and the outer ring. The screen cylinder vibrates in the gap between the inner ring and the outer ring. The inner ring and the outer ring limit the movement of the screen cylinder.

[0007] Furthermore, the transmission structure includes a positioning frame, a bottom drive shaft, stirring rods, a top rotating shaft, a protective sleeve, a main slider, and a main spring. The bottom drive shaft is fixedly connected to the motor output end, and the top rotating shaft is sleeved on the top end of the bottom drive shaft. The stirring rods include, but are not limited to, two, and each stirring rod is fixedly connected to the annular side of the bottom drive shaft. The protective sleeve is fixedly connected to the annular side of the motor, and the main slider is fixedly connected to the annular side of the protective sleeve. The main springs include, but are not limited to, four, and one end of each main spring is fixedly connected to the side of the main slider, while the other end of each main spring is fixedly connected to the inner side of the positioning frame. The diameter of the bottom drive shaft is smaller than the diameter of the top rotating shaft, and the top end of the bottom drive shaft is inserted into the top rotating shaft for connection.

[0008] Compared with the prior art, the advantages of this utility model are as follows: sieving can avoid uneven heating or local degradation during drying, ensuring the purity of the material; for highly hygroscopic elastomers, sieving can reduce subsequent foaming defects caused by adsorbed impurities; it optimizes particle uniformity, as sieving can select elastomer particles with uniform particle size, ensuring consistent heat transfer and moisture escape efficiency during drying, thus improving the drying effect; uniform particles are more likely to form a stable gas saturation state in supercritical fluids, which is beneficial to the uniformity of foam cells in subsequent foaming. Attached Figure Description

[0009] Figure 1 This is a three-dimensional internal structure diagram of a supercritical foamed elastomer drying device according to the present invention;

[0010] Figure 2 This is a three-dimensional structural diagram of a supercritical foamed elastomer drying device according to the present invention;

[0011] Figure 3 This is a partial structural schematic diagram of a supercritical foamed elastomer drying device according to the present invention;

[0012] Figure 4 This is a front structural diagram of a supercritical foamed elastomer drying device according to the present invention.

[0013] The attached diagram is labeled as follows: 1. Shell; 2. Feed pipe; 3. Transmission frame; 4. Screen frame; 5. Motor; 6. Transmission structure; 7. Discharge pipe; 8. Fixing frame; 9. Spring; 10. Slider; 11. Limiting post; 12. Limiting ring; 13. Screen cylinder; 14. Positioning frame; 15. Bottom transmission shaft; 16. Stirring rod; 17. Top rotating shaft; 18. Protective sleeve; 19. Main slider; 10. Main spring. Detailed Implementation

[0014] 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. For embodiments, please refer to... Figure 1-4 A supercritical foamed elastomer drying device includes a housing 1. The housing 1 includes an inlet pipe 2, a transmission frame 3, a screen frame 4, a motor 5, a transmission structure 6, and an outlet pipe 7. The inlet pipe 2 is fixed to the top of the housing 1. The transmission frame 3 is fixedly connected to the top of the inner part of the housing 1. The motor 5 is fixedly connected to the bottom of the housing 1. The transmission structure 6 is connected to the output end of the motor 5. The screen frame 4 is connected to one side of the transmission structure 6. The outlet pipe 7 is fixedly connected to the bottom of the housing 1. A top cover 10 is fixed to the connection end between the housing 1 and the inlet pipe 2. A pressure angle 8 is rotatably connected to the side of the housing 1 near the top cover. A pin 9 is connected to one side of the pressure angle 8. Valves are fixedly connected to the connection ends of the inlet pipe 2, the outlet pipe 7, and the housing 1. An electric heating wire layer is fixed to the inner side wall of the housing 1. The electric heating wire layer heats and dries the interior of the housing. A pin groove is fixedly connected to the top of the top cover 10. The pressure angle 8 is positioned and connected to one side of the top cover 10 by the pin 9.

[0015] The transmission frame 3 includes a fixed frame 34, which is fixedly connected to the inner wall of the housing 1. The transmission frame 3 has two springs 31, both of which are fixedly connected to the fixed frame 34. The slider 32 of the transmission frame 3 is slidably connected to the fixed frame 34. The transmission frame 3 has two limiting posts 33, both of which are fixedly connected to both sides of the slider 32. The limiting posts 33 pass through the springs 31. The fixed frame 34 has two parts, one of which is located at the top of the housing 1, and the other is connected to the bottom of the screen frame 4. One end of the spring of the transmission frame 3 is fixedly connected to the side of the slider of the transmission frame 3.

[0016] The screen frame 4 includes a limiting ring 41 and a screen cylinder 42. The limiting ring 41 includes, but is not limited to, two. One limiting ring 41 is fixedly connected to the bottom end of the fixed frame 34 near the feed pipe, and the other limiting ring is fixed to the top end of the fixed frame 34 near the top end of the bottom drive shaft 61. The limiting ring includes an inner ring and an outer ring. The screen cylinder 42 is located in the gap between the inner ring and the outer ring. The screen cylinder vibrates in the gap between the inner ring and the outer ring. The inner ring and the outer ring limit the movement of the screen cylinder.

[0017] The transmission structure 6 includes a positioning frame 60, a bottom drive shaft 61, stirring rods 62, a top rotating shaft 63, a protective sleeve 64, a main slider 65, and a main spring 66. The bottom drive shaft 61 is fixedly connected to the output end of the motor 5. The top rotating shaft 63 is sleeved on the top end of the bottom drive shaft 61. The stirring rods 62 include, but are not limited to, two, and each stirring rod 62 is fixedly connected to the annular side of the bottom drive shaft 61. The protective sleeve 64 is fixedly connected to the annular side of the motor. The main slider 65 is fixedly connected to the annular side of the protective sleeve 64. The main springs 66 include, but are not limited to, four, and one end of each main spring 66 is fixedly connected to the side of the main slider 65, and the other end of each main spring 66 is fixedly connected to the inner side of the positioning frame 60. The diameter of the bottom drive shaft 61 is smaller than the diameter of the top rotating shaft 63, and the top end of the bottom drive shaft 61 is inserted into the top rotating shaft 63 for connection.

[0018] Working principle: When the valve is opened, the raw material enters the housing 1 through the feed pipe 2 and falls into the screen frame 4. The motor 5 is started, driving the transmission structure 6 to work on one side of the transmission frame 3. The raw material passes through the screen frame 4 and is stirred by the transmission structure and heated and dried by the electric heating wire layer, so that the heating is uniform. When the valve is opened, the discharge pipe 7 can be connected to a pipe. The screened raw material can be collected from the discharge pipe and arranged to enter the equipment for the subsequent foaming process. The motor is started, driving the bottom transmission shaft 61 to rotate, which in turn drives the stirring rod 62 to stir the screened raw material. At the same time, it drives the top rotating shaft 63 to rotate, causing the slider 32 to squeeze the spring 31. Thus, the slider 32 moves laterally within the fixed frame 34. At this time, the top rotating shaft 63 drives the screen cylinder 42 to rotate. The raw material is screened inside the screen cylinder 42 and falls out of the screen cylinder 42. The main slider 65 squeezes the main spring 66 within the positioning frame 60. Within the positioning frame 60, the motor also moves left and right with the protective sleeve 64.

[0019] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0020] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A supercritical foamed elastomer drying device, characterized in that: The system includes a housing (1), which comprises an inlet pipe (2), a transmission frame (3), a screen frame (4), a motor (5), a transmission structure (6), and an outlet pipe (7). The inlet pipe (2) is fixed to the top of the housing (1), the transmission frame (3) is fixedly connected to the top of the housing (1), the motor (5) is fixedly connected to the bottom of the housing (1), the transmission structure (6) is connected to the output end of the motor (5), the screen frame (4) is connected to one side of the transmission structure (6), and the outlet pipe (7) is fixedly connected to the bottom of the housing (1). A top cover (10) is fixed at the connection end of the housing (1) and the feed pipe (2). A pressure angle (8) is rotatably connected to the side of the housing (1) near the top cover. A pin (9) is connected to one side of the pressure angle (8). Valves are fixedly connected to the connection ends of the feed pipe (2), the discharge pipe (7) and the housing (1). A heating wire layer is fixed to the inner wall of the housing (1). The heating wire layer heats and dries the inside of the housing. A pin groove is fixedly connected to the top of the top cover (10). The pressure angle (8) is positioned and connected to one side of the top cover (10) by the pin (9).

2. The supercritical foamed elastomer drying device according to claim 1, characterized in that: The transmission frame (3) includes a fixed frame (34), which is fixedly connected to the inner wall of the housing (1). The transmission frame (3) has two springs (31), both of which are fixedly connected within the fixed frame (34). The slider (32) of the transmission frame (3) is slidably connected within the fixed frame (34). The transmission frame (3) has two limiting posts (33), and both of which are fixedly connected within the fixed frame (34). 3) Both sides of the slider (32) are fixedly connected to the transmission frame (3). The limiting post (33) of the transmission frame (3) passes through the spring (31) of the transmission frame (3). There are two fixing frames (34). One fixing frame (34) is located at the top of the housing (1), and the other fixing frame (34) is connected to the bottom of the screen frame (4). One end of the spring (31) of the transmission frame (3) is fixedly connected to the side of the slider (32) of the transmission frame (3).

3. The supercritical foamed elastomer drying device according to claim 1, characterized in that: The screen frame (4) includes a limiting ring (41) and a screen cylinder (42). The limiting ring (41) includes, but is not limited to, two. One limiting ring (41) is fixedly connected to the bottom end of the fixed frame (34) near the feed pipe, and the other limiting ring is fixed to the top end of the fixed frame (34) near the top end of the bottom drive shaft (61). The limiting ring includes an inner ring and an outer ring. The screen cylinder (42) is located in the middle of the gap between the inner ring and the outer ring.

4. The supercritical foamed elastomer drying device according to claim 1, characterized in that: The transmission structure (6) includes a positioning frame (60), a bottom drive shaft (61), a stirring rod (62), a top rotating shaft (63), a protective sleeve (64), a main slider (65), and a main spring (66). The bottom drive shaft (61) is fixedly connected to the output end of the motor (5). The top rotating shaft (63) is sleeved on the top end of the bottom drive shaft (61). The stirring rod (62) includes, but is not limited to, two, and each stirring rod (62) is fixedly connected to the annular side of the bottom drive shaft (61). The protective sleeve (64) is fixedly connected to the annular side of the motor. The main slider (65) is fixedly connected to the annular side of the protective sleeve (64). The main spring (66) includes, but is not limited to, four, and one end of each main spring (66) is fixedly connected to the side of the main slider (65), and the other end of the main spring (66) is fixedly connected to the inner side of the positioning frame (60).

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