Dehydration device for production of polyurethane stock solution

Abstract

The utility model discloses a dehydration device for polyurethane stock solution production, which comprises a base, two groups of support columns are symmetrically fixed on two sides of the upper end of the base, a dehydration cylinder is mounted between the support columns, a first motor is mounted on one side wall of each support column, an electric push rod is mounted in the middle of the upper end of the base, and a second motor is mounted on the other side wall of each support column. A lifting disc is fixed to the output end of the electric push rod, and four sets of limiting rods are circumferentially distributed at the upper end of the lifting disc. The dewatering device has the advantages that the electric push rod, the lifting disc, the limiting rod, the limiting hole and the first motor are arranged, in the dewatering process, the electric push rod enables the limiting rod to be arranged in the limiting hole through the lifting disc, then the dewatering cylinder is supported, the stability of the dewatering cylinder is guaranteed, in the discharging process, the electric push rod drives the limiting rod to be separated from the limiting hole, limiting is relieved, and the dewatering effect is improved. And the motor I can drive the filter cylinder in the dewatering cylinder to overturn together through the dewatering cylinder, so that discharging is facilitated, and it is guaranteed that the device continuously and efficiently dewaters the raw materials.

Description

Technical Field

[0001] The utility model relates to the technical field of polyurethane production devices, and particularly relates to a dehydration device for producing polyurethane stock solution. Background Art

[0002] As a core polymer composite material, polyurethane has a relatively low cost and a relatively stable physical structure, so it has a large usage amount in the light industry. In the process of polyurethane production, there is a dehydration treatment process. In order to make the dehydration faster and more thorough, a special vacuum dehydration device is often used to improve the production efficiency.

[0003] Patent No. CN202121766463.0 discloses a vacuum dehydration device for polyurethane production, which includes a main body frame, a water collection tank and a top cover. Above the interior of the main body frame, there is a dehydration tank, below the interior of the main body frame, there is a water collection tank, the top of the main body frame is provided with a top cover, a drive cabin is arranged inside the water collection tank, an isolation discharge structure is arranged on one side of the water collection tank, and an auxiliary structure is fixedly connected to the bottom end of the top cover.

[0004] Although the above patent uses a protective structure during use, when the dehydration tank rotates rapidly, the rollers will limit the outer wall of the dehydration tank. At the same time, the rubber soft pads on the outer walls of the rollers will contact the outer wall of the dehydration tank, so that when the dehydration tank rotates, the rollers will move and rotate to reduce the friction force on the dehydration tank during rotation, so that the dehydration tank will not shake during rotation, realizing the protection of the dehydration tank during rotation dehydration. However, during the actual dehydration process, when the dehydration is completed, discharging is required. Since the raw materials are piled up in the dehydration tank and the dehydration tank is fixed, manual discharging is required, which not only leads to a large workload for the staff, but also results in a low discharging efficiency and affects the use performance of the device. Summary of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] The technical problem to be solved by the utility model is to provide a dehydration device for producing polyurethane stock solution that is convenient for discharging, has a good discharging effect, can make the device work continuously, and has a high dehydration efficiency in view of the current situation of the prior art.

[0007] (2) Technical Solutions

[0008] The present utility model is realized through the following technical solutions: The present utility model provides a dehydration device for producing polyurethane stock solution, including a base. On both sides of the upper end of the base, two groups of support columns are symmetrically fixed. A dehydration cylinder is installed between the support columns. On one side wall of the support column, a first motor is installed. In the middle of the upper end of the base, an electric push rod is installed. On the output end of the electric push rod, a lifting plate is fixed. Four groups of limiting rods are circumferentially distributed on the upper end of the lifting plate. Four groups of limiting holes are circumferentially distributed at the bottom end of the dehydration cylinder.

[0009] Furthermore, the support columns are welded to the base. The dehydration cylinder is rotatably connected to the support columns. The output shaft of the first motor is fixedly connected to one side wall of the dehydration cylinder.

[0010] By adopting the above technical solution, during discharging, the first motor can drive the filter cylinder inside it to flip together through the dehydration cylinder, thereby facilitating discharging.

[0011] Furthermore, the fixed part of the electric push rod is connected to the base by bolts. The output end of the electric push rod is connected to the lifting plate by screws. The limiting rods are welded to the lifting plate. The limiting holes are formed on the bottom wall of the dehydration cylinder. The positions of the limiting rods and the limiting holes correspond to each other and have the same specifications.

[0012] By adopting the above technical solution, during the dehydration process, the electric push rod places the limiting rods into the limiting holes through the lifting plate, thereby supporting the dehydration cylinder and ensuring its stability. During the discharging process, the electric push rod drives the limiting rods to separate from the limiting holes, releasing the limit.

[0013] Furthermore, two groups of hydraulic rods are symmetrically fixed on the outer side wall of the dehydration cylinder near the upper end. On the output end of the hydraulic rods, a sealing cover is fixed.

[0014] By adopting the above technical solution, the hydraulic rods can drive the sealing cover to lift, thereby realizing the opening and closing of the dehydration cylinder.

[0015] Furthermore, a second motor is fixedly installed in the middle of the inner bottom end of the dehydration cylinder by bolts. The second motor is a waterproof motor. A protective cover is arranged outside the second motor. On the output shaft of the second motor, a filter cylinder is fixed.

[0016] By adopting the above technical solution, the raw materials for preparing polyurethane stock solution are injected into the filter cylinder. At this time, the second motor drives it to rotate at a high speed to dehydrate the raw materials.

[0017] Furthermore, four groups of brackets are circumferentially distributed on the inner wall of the dehydration cylinder near the upper end. A limiting wheel is rotatably installed in the brackets. The limiting wheel contacts the outer side wall of the filter cylinder.

[0018] By adopting the above technical solution, during the dehydration process, the limiting wheel in the bracket can limit the filter cartridge, thereby improving the stability of the filter cartridge during dehydration.

[0019] Furthermore, a sealing ring is installed between the top end of the filter cartridge and the dehydration cylinder. The sealing ring is fixed inside the dehydration cylinder, and the filter cartridge is rotatably connected to the sealing ring. A drainage hole is formed at the bottom end of one side wall of the dehydration cylinder.

[0020] By adopting the above technical solution, the sealing ring can seal the gap between the filter cartridge and the top end of the dehydration cylinder, and the discharged water is discharged through the drainage port.

[0021] (III) Beneficial effects

[0022] Compared with the prior art, the present utility model has the following beneficial effects:

[0023] To solve the problem that in the prior art, when discharging materials after dehydration in a dehydration device for producing polyurethane stock solution, due to the raw materials accumulating in the dehydration tank and the dehydration tank being fixed, manual discharging is required, which not only increases the working intensity of the staff but also results in low discharging efficiency and affects the use performance of the device. The present utility model is provided with an electric push rod, a lifting plate, a limiting rod, a limiting hole and a first motor. During the dehydration process, the electric push rod places the limiting rod into the limiting hole through the lifting plate, thereby supporting the dehydration cylinder and ensuring its stability. During the discharging process, the electric push rod drives the limiting rod to separate from the limiting hole to release the limit, and the first motor can drive the filter cartridge inside it to rotate together through the dehydration cylinder, thereby facilitating discharging and ensuring that the device continuously and efficiently dehydrates the raw materials. Description of the drawings

[0024] Figure 1 is a schematic structural diagram of a dehydration device for producing polyurethane stock solution according to the present utility model;

[0025] Figure 2 is a main sectional view of a dehydration device for producing polyurethane stock solution according to the present utility model;

[0026] Figure 3 is a top sectional view of the limiting wheel and the filter cartridge in a dehydration device for producing polyurethane stock solution according to the present utility model.

[0027] The description of the reference numerals is as follows:

[0028] 1. Electric push rod; 2. Base; 3. Drainage port; 4. Support column; 5. First motor; 6. Sealing cover; 7. Dehydration cylinder; 8. Limiting rod; 9. Lifting plate; 10. Limiting hole; 11. Protective cover; 12. Bracket; 13. Sealing ring; 14. Limiting wheel; 15. Filter cartridge; 16. Second motor; 17. Hydraulic rod. Detailed implementation manners

[0029] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0030] As Figures 1 - 3 shown, a dehydration device for producing polyurethane stock solution in this embodiment includes a base 2. Two groups of support columns 4 are symmetrically and fixedly arranged on both sides of the upper end of the base 2. A dehydration cylinder 7 is installed between the support columns 4. A first motor 5 is installed on one side wall of the support column 4. During discharging, the first motor 5 can drive the filter cylinder 15 inside it to rotate together through the dehydration cylinder 7, thereby facilitating discharging. An electric push rod 1 is installed in the middle of the upper end of the base 2. A lifting plate 9 is fixedly arranged on the output end of the electric push rod 1. Four groups of limiting rods 8 are circumferentially distributed on the upper end of the lifting plate 9. Four groups of limiting holes 10 are circumferentially distributed at the bottom end of the dehydration cylinder 7. During the dehydration process, the electric push rod 1 places the limiting rods 8 into the limiting holes 10 through the lifting plate 9, thereby supporting the dehydration cylinder 7 and ensuring its stability. During the discharging process, the electric push rod 1 drives the limiting rods 8 to separate from the limiting holes 10 to release the limitation.

[0031] As Figures 1 - 3 shown, in this embodiment, the support column 4 is welded to the base 2, the dehydration cylinder 7 is rotatably connected to the support column 4, the output shaft of the first motor 5 is fixedly connected to one side wall of the dehydration cylinder 7, the fixed part of the electric push rod 1 is connected to the base 2 by bolts, the output end of the electric push rod 1 is connected to the lifting plate 9 by screws, the limiting rods 8 are welded to the lifting plate 9, the limiting holes 10 are formed on the bottom wall of the dehydration cylinder 7, the positions of the limiting rods 8 and the limiting holes 10 correspond to each other and have the same specifications. Two groups of hydraulic rods 17 are symmetrically and fixedly arranged on the outer side wall of the dehydration cylinder 7 near the upper end. A sealing cover 6 is fixedly arranged on the output end of the hydraulic rod 17. The hydraulic rod 17 can drive the sealing cover 6 to lift, thereby realizing the opening and closing of the dehydration cylinder 7.

[0032] As Figures 1 - 3As shown, in this embodiment, a second motor 16 is fixedly installed in the middle of the inner bottom end of the dehydration cylinder 7 through bolts. The second motor 16 is a waterproof motor, and a protective cover 11 is arranged outside the second motor 16. A filter cylinder 15 is fixedly installed on the output shaft of the second motor 16. The raw materials for preparing the polyurethane stock solution are injected into the filter cylinder 15. At this time, the second motor 16 drives it to rotate at a high speed to dehydrate the raw materials. Four groups of brackets 12 are circumferentially distributed at the position near the upper end of the inner wall of the dehydration cylinder 7. A limiting wheel 14 is rotatably installed in the bracket 12, and the limiting wheel 14 contacts the outer side wall of the filter cylinder 15. During the dehydration process, the limiting wheel 14 in the bracket 12 can limit the filter cylinder 15, thereby improving the stability of the filter cylinder 15 during dehydration. A sealing ring 13 is installed between the filter cylinder 15 and the top end of the dehydration cylinder 7. The sealing ring 13 is fixed inside the dehydration cylinder 7, and the filter cylinder 15 is rotatably connected to the sealing ring 13. A drain hole is formed at the bottom end of one side wall of the dehydration cylinder 7. The sealing ring 13 can seal the gap between the filter cylinder 15 and the top end of the dehydration cylinder 7, and the discharged water is discharged through the drain port 3.

[0033] The specific implementation process of this embodiment is as follows: When in use, connect to the external power supply, lift the sealing cover 6 through the hydraulic rod 17, then inject the raw materials for preparing the polyurethane stock solution into the filter cylinder 15, and then seal the dehydration cylinder 7 through the sealing cover 6. Then, the second motor 16 drives it to rotate at a high speed to dehydrate the raw materials. During the dehydration process, the limiting wheel 14 in the bracket 12 can limit the filter cylinder 15, thereby improving the stability of the filter cylinder 15 during dehydration. At the same time, the electric push rod 1 places the limiting rod 8 into the limiting hole 10 through the lifting disc 9, thereby supporting the dehydration cylinder 7 and ensuring its stability. During the discharging process, the electric push rod 1 drives the limiting rod 8 to separate from the limiting hole 10 to release the limit. The first motor 5 can drive the filter cylinder 15 inside it to flip together through the dehydration cylinder 7, thereby facilitating discharging and ensuring that the device continuously and efficiently dehydrates the raw materials.

[0034] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A dehydration device for producing polyurethane stock solution, characterized in that: The invention comprises a base (2), two groups of support columns (4) are symmetrically fixed on both sides of the upper end of the base (2), a dehydration cylinder (7) is installed between the support columns (4), a motor (5) is installed on one side wall of the support column (4), an electric push rod (1) is installed in the middle of the upper end of the base (2), a lifting plate (9) is fixed on the output end of the electric push rod (1), four groups of limit rods (8) are distributed in a circle on the upper end of the lifting plate (9), and four groups of limit holes (10) are distributed in a circle on the bottom end of the dehydration cylinder (7).

2. A dehydration device for producing polyurethane stock solution according to claim 1, characterized in that: The support column (4) is welded to the base (2), the dehydration cylinder (7) is rotatably connected to the support column (4), and the output shaft of the motor 1 (5) is fixedly connected to a side wall of the dehydration cylinder (7).

3. A dehydration device for producing polyurethane stock solution according to claim 1, characterized in that: The fixing part of the electric push rod (1) is connected to the base (2) by bolts, the output end of the electric push rod (1) is connected to the lifting plate (9) by screws, the limiting rod (8) is welded to the lifting plate (9), the limiting hole (10) is formed on the bottom wall of the dehydration cylinder (7), and the limiting rod (8) and the limiting hole (10) have corresponding positions and consistent specifications.

4. A dehydration device for producing polyurethane stock solution according to claim 1, characterized in that: Two groups of hydraulic rods (17) are symmetrically fixed to the portion of the outer side wall of the dehydration cylinder (7) close to the upper end, and a sealing cover (6) is fixed to the output end of the hydraulic rod (17).

5. A dehydration device for producing polyurethane stock solution according to claim 4, characterized in that: A second motor (16) is fixed to the middle of the bottom end of the dehydration cylinder (7) by bolts. The second motor (16) is a waterproof motor. A protective cover (11) is arranged outside the second motor (16). A filter cartridge (15) is fixed to the output shaft of the second motor (16).

6. A dehydration device for producing polyurethane stock solution according to claim 5, characterized in that: Four groups of brackets (12) are distributed in a circular pattern at a portion of the inner wall of the dehydration cylinder (7) near the upper end. A limiting wheel (14) is rotatably installed in the bracket (12), and the limiting wheel (14) is in contact with the outer wall of the filter cylinder (15).

7. A dehydration device for producing polyurethane stock solution according to claim 6, characterized in that: A sealing ring (13) is installed between the filter cartridge (15) and the top end of the dehydration cartridge (7); the sealing ring (13) is fixed in the dehydration cartridge (7); the filter cartridge (15) is rotatably connected to the sealing ring (13); and a drainage hole is formed at the bottom end of one side wall of the dehydration cartridge (7).

Images