Propylene-ethylene polymer purifying and drying device

Abstract

The utility model relates to the related technical field of ethylene-propylene polymers, in particular to an ethylene-propylene polymer purifying and drying device which comprises a processing frame, a briquetting mechanism is arranged on one side of the processing frame, purifying and drying mechanisms are arranged on the inner wall and the top of the processing frame, and a pushing mechanism is arranged on one side of the briquetting mechanism. Through the arrangement of the briquetting mechanism and the strong pressure provided by the hydraulic cylinder, the polymer is quickly compressed into blocks in the space formed by the die cavity and the stop dog, the polymer is subjected to uniform pressure in the briquetting process to form a compact block structure, the block product is convenient to transport and store, and the production efficiency is improved. Damage and waste in the transportation process are reduced, circular motion is converted into linear reciprocating motion through cooperation of a limiting column and a movable plate in the pushing mechanism, the automatic pushing action of a pushing block is achieved, and the pressing block collecting efficiency can be improved through cooperation of the pushing mechanism and the pressing block mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of propylene polymers, in particular to a purification and drying device for propylene polymers. Background Art

[0002] In many high-end fields, such as electronic appliances, aerospace, medical treatment, etc., the purity requirements for propylene polymers are extremely high. The production raw materials of propylene polymers may contain various impurities, such as unreacted monomers, catalyst residues, by-products, etc. With the continuous development of production processes, the purity requirements for raw materials are also getting higher and higher. Therefore, a purification and drying device for propylene polymers is particularly needed.

[0003] However, in the existing purification and drying device for propylene polymers, during the transportation of the purified granular propylene polymers, due to their irregular shapes, there will be a large number of voids, resulting in the transportation space not being fully utilized. The unblocked polymers are prone to move and shake during transportation, especially when the vehicle accelerates, decelerates or turns, which affects the transportation safety.

[0004] In view of the above problems, a purification and drying device for propylene polymers is proposed. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a purification and drying device for propylene polymers to solve the existing purification and drying device for propylene polymers mentioned in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A purification and drying device for propylene polymers, including a processing frame. A briquetting mechanism is provided on one side of the processing frame. A purification and drying mechanism is provided on the inner wall and top of the processing frame. A feeding mechanism is provided on one side of the briquetting mechanism;

[0007] The briquetting mechanism includes a hydraulic cylinder provided on one side of the processing frame. A lifting table is provided at the bottom of the hydraulic cylinder. A die groove is provided inside the lifting table. Cylinders are penetrated through the four corners of the lifting table, and the cylinders are slidably connected to the lifting table. A base is provided at the bottom of the lifting table. A stop block is provided at the top of the base directly below the die groove;

[0008] The feeding mechanism is used to push the briquetted material from the top of the die groove to one side of the lifting table.

[0009] Preferably, a first mounting block is provided on one side of the processing frame. Cylinders are provided at both ends of the base between the cylinders.

[0010] Preferably, the top of the cylinder is provided at the bottom of the lifting table, and the bottom of the cylinder is provided at the top of the base.

[0011] Preferably, the pushing mechanism includes a second mounting block installed on one side of the processing frame. A driving motor is provided at the bottom of the second mounting block. A disc is rotatably connected to the bottom shaft of the driving motor. A limiting post is provided at the bottom of the disc. A movable plate is provided on the surface of the limiting post. One end of the movable plate is provided with a connecting plate. One end of the connecting plate passes through a limiting block located on one side of the processing frame. A pushing block is provided at one end of the connecting plate.

[0012] Preferably, the pushing block is semi-circular. The limiting post is slidably connected to the movable plate. The connecting plate is slidably connected to the limiting block.

[0013] Preferably, the purification and drying mechanism includes a fluidized bed penetrating through the top of the processing frame. Three solvent tanks are provided on the inner wall of the processing frame. Heaters are provided on both sides of the inner wall of the processing frame. A turbine circulation pump is provided above the solvent tanks at the bottom of the fluidized bed. A rectifying column is provided at the top of the fluidized bed.

[0014] Preferably, the interior of the rectifying column is of a multi-layer structure. The heater is provided on one side of the fluidized bed.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] The propylene polymer purification and drying device is provided with a pressing block mechanism. The hydraulic cylinder provides a strong pressure, enabling the polymer to be rapidly compressed into a block shape within the space formed by the die groove and the stopper. During the pressing block process, the polymer is subjected to a uniform pressure, forming a dense block structure. Such block-shaped products are convenient for transportation and storage, reducing damage and waste during transportation.

[0017] In the pushing mechanism, the driving motor drives the disc to rotate. Through the cooperation of the limiting post and the movable plate, the circular motion is converted into a linear reciprocating motion, realizing the automatic pushing action of the pushing block. The semi-circular design of the pushing block and the limiting function of the limiting block make the pushing process more accurate, and in cooperation with the pressing block mechanism, the efficiency of pressing block collection can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 is a schematic diagram of the structure of the pressing block mechanism of the present utility model Figure 1 ;

[0020] Figure 3 is a schematic diagram of the structure of the pushing mechanism of the present utility model;

[0021] Figure 4 is a schematic diagram of the structure of the pressing block mechanism of the present utility model Figure 2 ;

[0022] Figure 5This is a schematic structural diagram of the purification and drying mechanism of the present utility model.

[0023] In the figure: 1. Processing frame; 2. Pressing block mechanism; 201. First mounting block; 202. Hydraulic cylinder; 203. Lifting platform; 204. Die groove; 205. Cylinder; 206. Base; 207. Stopper; 208. Cylinder; 3. Purification and drying mechanism; 301. Fluidized bed; 302. Solvent tank; 303. Heater; 304. Turbine circulation pump; 305. Rectifying column; 4. Pushing mechanism; 401. Second mounting block; 402. Driving motor; 403. Disc; 404. Limit post; 405. Movable plate; 406. Connecting plate; 407. Limit block; 408. Pushing block. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0025] Embodiment

[0026] As Figure 1 、 2 As shown in FIGS. 1, 2, and 4, there is a processing frame 1. A pressing block mechanism 2 is provided on one side of the processing frame 1. The pressing block mechanism 2 includes a hydraulic cylinder 202 provided on one side of the processing frame 1. The bottom of the hydraulic cylinder 202 is provided with a lifting platform 203. A die groove 204 is provided inside the lifting platform 203. Cylinders 205 are inserted through the four corners of the lifting platform 203, and the cylinders 205 are slidably connected to the lifting platform 203. The bottom of the lifting platform 203 is provided with a base 206. A stopper 207 is provided on the top of the base 206 directly below the die groove 204.

[0027] It should be noted that in this embodiment, the hydraulic cylinder 202 is installed on the first mounting block 201 on one side of the processing frame 1. First, the hydraulic cylinder 202 is in an initial state. The lifting platform 203 is located at a higher position under the guidance of the cylinders 205. The top of the stopper 207 is flush with the bottom of the die groove 204. When the propylene polymer to be purified and dried is ready for pressing block operation, first pour the granular propylene polymer into the die groove 204, and then start the hydraulic cylinder 202. The pressure applied by the hydraulic cylinder 202 compresses the polymer into a block in the space formed by the die groove 204 and the stopper 207. Then start the cylinder 208, and the cylinder 208 pushes the lifting platform 203 to slide along the cylinders 205 towards the base 206. Finally, the stopper 207 ejects the pressed polymer block;

[0028] As Figure 1 、 3As shown in the figure, the material pushing mechanism 4 includes a second mounting block 401 installed on one side of the processing frame 1. A driving motor 402 is provided at the bottom of the second mounting block 401. A disc 403 is pivotally connected to the bottom shaft of the driving motor 402. A limiting post 404 is provided at the bottom of the disc 403. A movable plate 405 is provided on the surface of the limiting post 404. One end of the movable plate 405 is provided with a connecting plate 406. One end of the connecting plate 406 passes through a limiting block 407 located at the top of the lifting table 203. A pushing block 408 is provided at one end of the connecting plate 406.

[0029] It should be noted that in this embodiment, after the pressing block mechanism 4 completes the pressing block operation, the driving motor 402 is started. The driving motor 402 drives the disc 403 pivotally connected to its bottom to rotate. The limiting post 404 at the bottom of the disc 403 rotates in a circular motion together with the disc 403. During the circular motion of the limiting post 404, relative sliding occurs between the limiting post 404 and the movable plate 405 on its surface. The movable plate 405 is restricted by the limiting block 407 and can only slide in a certain direction. Therefore, the circular motion of the limiting post 404 is converted into a linear reciprocating motion of the movable plate 405. When the movable plate 405 makes a linear reciprocating motion, it drives the connecting plate 406 to slide within the limiting block 407, and the pushing block 408 moves along with the movement of the connecting plate 406, thus completing the material pushing action.

[0030] As Figure 1 、 5 As shown in the figure, the purification and drying mechanism 3 includes a fluidized bed 301 penetrating through the top of the processing frame 1. Three solvent tanks 302 are provided on the inner wall of the processing frame 1. Heaters 303 are provided on both sides of the inner wall of the processing frame 1. A turbine circulation pump 304 is provided above the solvent tanks 302 at the bottom of the fluidized bed 301. A rectifying column 305 is provided at the top of the fluidized bed 301.

[0031] It should be noted that in this embodiment, first, after the solvent in the solvent tank 302 enters the fluidized bed 301, the turbine circulation pump 304 is started. A part of the solvent is heated by the heater 303 and then returns to the fluidized bed 301 to establish a circulation temperature control system for the fluidized bed 301. Another part of the solvent enters the inside of the rectifying column 305. The steam vaporized by the heater 303 reaches the condenser in the rectifying column 305 and is condensed into a liquid. The liquid is evenly distributed on the packing in the rectifying column 305 through the collector and contacts the rising steam countercurrently to achieve gas-liquid mass transfer separation. The recovered solvent returns to the fluidized bed 301 through a bypass to establish a dissolution recovery circulation system. The liquid polymer is sprayed into the fluidized bed 301 through a nozzle at one end of the connecting pipe to precipitate solid particles and present a vulcanized state. At the same time, the impurities in the polymer dissolve in the solvent, and the polymer is purified. The solid particles entrained by the solvent are blocked by the filter element at the top of the fluidized bed 301. When the polymer purification is qualified, the heating of the turbine circulation pump 304 and the heater 303 is stopped. Then, compressed gas is introduced to blow off the particles on the filter element, and the liquid is discharged through the lower filter plate to separate the solid polymer from the solvent. Then, the gas circulation pump is started. The gas is heated and enters the fluidized bed 301 to dry the polymer. The solvent-containing gas enters the tower internal condenser in the rectifying column 305 through a bypass for dehumidification and drying, and then returns to the fluidized bed 301 by the gas circulation pump for continuous drying. When the polymer drying is qualified, the final product is taken out.

[0032] Working principle of the utility model:

[0033] Refer to the attached instruction Figures 1-5 , first, after the solvent in the solvent tank 302 enters the fluidized bed 301, the turbine circulation pump 304 is started. A part of the solvent is heated by the heater 303 and then returns to the fluidized bed 301 to establish a circulation temperature control system for the fluidized bed 301. Another part of the solvent enters the inside of the rectifying column 305. The steam vaporized by the heater 303 reaches the condenser in the rectifying column 305 and is condensed into a liquid. The liquid is evenly distributed on the packing in the rectifying column 305 through the collector and contacts the rising steam countercurrently to achieve gas-liquid mass transfer separation. The recovered solvent returns to the fluidized bed 301 through a bypass to establish a dissolution recovery circulation system. The liquid polymer is sprayed into the fluidized bed 301 through a nozzle at one end of the connecting pipe to precipitate solid particles and present a vulcanized state. At the same time, the impurities in the polymer dissolve in the solvent, and the polymer is purified. The solid particles entrained by the solvent are blocked by the filter element at the top of the fluidized bed 301. When the polymer purification is qualified, the heating of the turbine circulation pump 304 and the heater 303 is stopped. Then, compressed gas is introduced to blow off the particles on the filter element, and the liquid is discharged through the lower filter plate to separate the solid polymer from the solvent. Then, the gas circulation pump is started. The gas is heated and enters the fluidized bed 301 to dry the polymer. The solvent-containing gas enters the tower internal condenser in the rectifying column 305 through a bypass for dehumidification and drying, and then returns to the fluidized bed 301 by the gas circulation pump for continuous drying. When the polymer drying is qualified, the final product is taken out;

[0034] When pressing the purified and dried polymer into a block, first, the hydraulic cylinder 202 is in the initial state. The lifting table 203 is located at a higher position under the guidance of the cylinder 205, and the top of the stop block 207 is flush with the bottom of the die groove 204. When the propylene polymer to be purified and dried is ready for the pressing operation, first pour the granular propylene polymer into the die groove 204, and then start the hydraulic cylinder 202. The pressure applied by the hydraulic cylinder 202 compresses the polymer into a block in the space formed by the die groove 204 and the stop block 207. After that, start the air cylinder 208, and the air cylinder 208 pushes the lifting table 203 to slide along the cylinder 205 towards the base 206. Finally, the stop block 207 ejects the polymer pressed into a block.

[0035] When the pressing mechanism 4 completes the pressing operation, start the driving motor 402. The driving motor 402 drives the rotation of the disc 403 connected to the bottom shaft. The limit post 404 at the bottom of the disc 403 makes a circular motion along with the disc 403. During the circular motion of the limit post 404, relative sliding occurs with the movable plate 405 on the surface. The movable plate 405 is restricted by the limit block 407 and can only slide in a certain direction. Therefore, the circular motion of the limit post 404 is converted into a linear reciprocating motion of the movable plate 405. When the movable plate 405 makes a linear reciprocating motion, it drives the connecting plate 406 to slide within the limit block 407, and the pushing block 408 moves along with the movement of the connecting plate 406, thus completing the material pushing action.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A propylene polymer purification and drying device, comprising a processing rack (1), characterized in that: One side of the processing frame (1) is provided with a pressing block mechanism (2), the inner wall and the top of the processing frame (1) are provided with a purification and drying mechanism (3), and one side of the pressing block mechanism (2) is provided with a feeding mechanism (4); The pressing block mechanism (2) includes a hydraulic cylinder (202) arranged on one side of the processing frame (1), a lifting table (203) is arranged at the bottom of the hydraulic cylinder (202), a die groove (204) is arranged inside the lifting table (203), cylinders (205) are arranged through the four corners of the lifting table (203), and the cylinders (205) are slidably connected with the lifting table (203), a base (206) is arranged at the bottom of the lifting table (203), and a stop block (207) is arranged at the top of the base (206) directly below the die groove (204); The feeding mechanism (4) is used to push the pressed material from the top of the die groove (204) to one side of the lifting table (203).

2. The purification and drying device for propylene polymer according to claim 1, characterized in that: A first mounting block (201) is arranged on one side of the processing frame (1), and cylinders (208) are arranged between the two ends of the base (206) and between the cylinders (205).

3. The purification and drying device for propylene polymer according to claim 2, wherein: The top of the cylinder (208) is arranged at the bottom of the lifting table (203), and the bottom of the cylinder (205) is arranged at the top of the base (206).

4. A purification and drying device for propylene polymer according to claim 1, characterized in that: The feeding mechanism (4) includes a second mounting block (401) mounted on one side of the processing frame (1), a driving motor (402) is arranged at the bottom of the second mounting block (401), a disc (403) is axially connected to the bottom of the driving motor (402), a limiting column (404) is arranged at the bottom of the disc (403), a movable plate (405) is arranged on the surface of the limiting column (404), a connecting plate (406) is arranged at one end of the movable plate (405), one end of the connecting plate (406) passes through a limiting block (407) located on one side of the processing frame (1), and a pushing block (408) is arranged at one end of the connecting plate (406).

5. The purification and drying device for propylene polymer according to claim 4, characterized in that: The pushing block (408) is semicircular, the limiting column (404) is slidably connected with the movable plate (405), and the connecting plate (406) is slidably connected with the limiting block (407).

6. The purification and drying device for propylene polymer according to claim 1, characterized in that: The purification and drying mechanism (3) includes a fluidized bed (301) penetrating through the top of the processing frame (1), three solvent tanks (302) are arranged on the inner wall of the processing frame (1), heaters (303) are arranged on both sides of the inner wall of the processing frame (1), a turbine circulation pump (304) is arranged at the bottom of the fluidized bed (301) above the solvent tank (302), and a rectifying column (305) is arranged at the top of the fluidized bed (301).

7. The purification and drying device for propylene polymer according to claim 6, wherein: The inside of the rectifying column (305) is of a multi-layer structure, and the heater (303) is arranged on one side of the fluidized bed (301).

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