Raw material treatment device for polypropylene production

Abstract

The utility model relates to the technical field of polypropylene production, in particular to a raw material processing device for polypropylene production, which comprises a drying cylinder, a hammer rod mounting seat is fixed at one end of the drying cylinder far away from a motor, a hammer rod is rotatably connected onto the surface of the hammer rod mounting seat, a hammer head is fixed at one end of the hammer rod, and a rubber block is fixed at the other end of the hammer head. The other end of the rubber block abuts against the surface of the feeding hopper. The device has the beneficial effects that the hammer rod reciprocates and swings along the hammer rod mounting seat, so that the rubber block fixed on the surface of the hammer head repeatedly hammers the surface of the feeding hopper, the feeding hopper vibrates due to hammering of the rubber block to the feeding hopper, the vibration is transmitted to raw materials which are coagulated into blocks in the feeding hopper, the raw materials which are coagulated into blocks can be vibrated to be scattered, and the quality of the raw materials is improved. Therefore, the raw materials fall into the drying cylinder after being vibrated to be scattered, even if the raw materials are attached to the inner wall of the feeding hopper, the raw materials can fall off from the inner wall of the feeding hopper under the vibration effect, and the anti-blocking function of the feeding hopper is achieved.

Description

Technical Field

[0001] This utility model relates to the field of polypropylene production technology, specifically to a raw material processing device for polypropylene production. Background Technology

[0002] In the polypropylene production sector, process optimization in the raw material handling stage has a crucial impact on the final product quality and reaction efficiency. Polypropylene production typically uses propylene as the main raw material, and the raw material handling mainly aims at desulfurization, decarbonization, and dehydration.

[0003] In the prior art, a patent application with application number CN202222288720.5, published by the China National Intellectual Property Administration, discloses a raw material drying device for polypropylene production. The device includes a drying cylinder and multiple support frames symmetrically distributed and fixed to the outer sidewall of the drying cylinder. A feed hopper connected to the interior is fixed to the outer sidewall of the drying cylinder, and a discharge pipe connected to the inner sidewall at the bottom of the drying cylinder is fixed to the inner sidewall. An installation plate is fixed to the outer sidewall of the drying cylinder. This invention uses a stirring assembly to drive a heating rod to rotate around the axis of rotation, enabling more comprehensive heating and drying of the polypropylene raw material inside the drying cylinder. This significantly improves the efficiency of polypropylene raw material drying and processing, effectively avoiding the need for reprocessing and re-drying of the polypropylene raw material, thus providing greater assurance for polypropylene raw material processing.

[0004] The existing method to prevent raw materials from condensing into lumps and clogging the feed hopper is to use the reciprocating motion of a pusher plate to squeeze the lumped raw materials, thereby reducing the volume of the lumped raw materials under compression. Then, when the pusher plate moves back to its original position, the lumped raw materials can fall into the drying barrel.

[0005] However, when the pusher plate pushes and squeezes the raw material, the raw material with a high moisture content is easily stuck to the inner wall of the feed hopper during the extrusion, which makes it impossible for the raw material to fall smoothly into the drying cylinder. Utility Model Content

[0006] The purpose of this invention is to provide a raw material processing device for polypropylene production, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a raw material processing device for polypropylene production, comprising: a drying cylinder, a feed hopper at the top of the drying cylinder, a rotating shaft rotatably connected to the surface of the drying cylinder, a motor at one end of the drying cylinder, one end of the rotating shaft fixed to the drive shaft of the motor, a hammer rod mounting base fixed at the end of the drying cylinder away from the motor, a hammer rod rotatably connected to the surface of the hammer rod mounting base, a hammer head fixed at one end of the hammer rod, a rubber block fixed at the other end of the hammer head, and the other end of the rubber block abutting against the surface of the feed hopper.

[0008] Preferably, a turntable is provided at the end of the rotating shaft away from the motor, an active pushing block is fixed on the surface of the turntable, a passive pushing block is fixed on the surface of the hammer rod, and the passive pushing block is located below the hammer head.

[0009] Preferably, a spring is fixed to the surface of the hammer rod, and the other end of the spring is fixed to the surface of the drying cylinder. The spring is positioned between the hammer head and the passive push block.

[0010] Preferably, keyways are provided on the surfaces of both the rotating shaft and the turntable, and a set of flat keys are movably inserted into the two sets of keyways.

[0011] Preferably, a bushing is fitted on the surface of the rotating shaft. The bushing has an annular plate structure, with one end of the bushing abutting against the surface of the drying cylinder and the other end abutting against the surface of the turntable.

[0012] Preferably, an end cap is provided at the end of the rotating shaft away from the motor. Threaded holes are provided on the surfaces of both the rotating shaft and the end cap, and screws are threaded into the threaded holes. The end cap rests against the end of the turntable away from the bushing.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The raw material processing device for polypropylene production proposed in this utility model features a hammer rod that reciprocates along its mounting base. This causes a rubber block fixed to the surface of the hammer head to repeatedly strike the surface of the feed hopper. The impact of the rubber block on the feed hopper causes vibration, which is transmitted to the raw material that has clumped together in the feed hopper. This vibration disperses the clumps of raw material, allowing them to fall into the drying cylinder. Even if the raw material is stuck to the inner wall of the feed hopper, it will detach from the inner wall under the vibration, thus achieving the anti-clogging function of the feed hopper. At the same time, the rubber block made of rubber material on the surface of the hammer head can prevent the hammering from damaging the feed hopper. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2This is a schematic cross-sectional view of the present invention.

[0017] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0018] In the diagram: 1. Drying cylinder; 2. Feed hopper; 3. Rotary shaft; 4. Motor; 5. Hammer rod mounting base; 6. Hammer rod; 7. Hammer head; 8. Rubber block; 9. Turntable; 10. Active push block; 11. Passive push block; 12. Spring; 13. Keyway; 14. Flat key; 15. End cover; 16. Screw hole; 17. Screw; 18. Bushing. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Example 1: Please refer to Figures 1 to 3 This utility model provides a technical solution: a raw material processing device for polypropylene production, comprising: a drying cylinder 1, a feed hopper 2 at the top of the drying cylinder 1, a rotating shaft 3 rotatably connected to the surface of the drying cylinder 1, a motor 4 at one end of the drying cylinder 1, one end of the rotating shaft 3 fixed to the drive shaft of the motor 4, a hammer rod mounting seat 5 fixed at the end of the drying cylinder 1 away from the motor 4, a hammer rod 6 rotatably connected to the surface of the hammer rod mounting seat 5, a hammer head 7 fixed at one end of the hammer rod 6, a rubber block 8 fixed at the other end of the hammer head 7, and the other end of the rubber block 8 abutting against the surface of the feed hopper 2.

[0021] In actual use, the hammer rod 6 reciprocates along the hammer rod mounting seat 5, causing the rubber block 8 fixed on the surface of the hammer head 7 to repeatedly hammer the surface of the feed hopper 2. The hammering of the rubber block 8 on the feed hopper 2 causes the feed hopper 2 to vibrate. This vibration is transmitted to the raw material that has clumped in the feed hopper 2, which can break up the clumps of raw material, allowing the raw material to fall into the drying cylinder 1 after being broken up. Even if the raw material is stuck to the inner wall of the feed hopper 2, it will fall off the inner wall of the feed hopper 2 under the action of vibration, thus realizing the anti-clogging function of the feed hopper 2. At the same time, the rubber block 8 made of rubber material on the surface of the hammer head 7 can prevent the hammering from damaging the feed hopper 2.

[0022] Example 2: Based on Example 1, in order to make the hammer rod 6 reciprocate along the hammer rod mounting base 5, a rotating shaft 3 is rotatably connected to the surface of the drying cylinder 1. A motor 4 is provided at one end of the drying cylinder 1, and one end of the rotating shaft 3 is fixed on the drive shaft of the motor 4. A turntable 9 is provided at the end of the rotating shaft 3 away from the motor 4. An active pushing block 10 is fixed on the surface of the turntable 9, and a passive pushing block 11 is fixed on the surface of the hammer rod 6. The passive pushing block 11 is located below the hammer head 7. A spring 12 is fixed on the surface of the hammer rod 6, and the other end of the spring 12 is fixed on the surface of the drying cylinder 1. The spring 12 is located between the hammer head 7 and the passive pushing block 11.

[0023] After the motor 4 is powered on, the drive shaft of the motor 4 rotates, which also drives the rotating shaft 3 to rotate. The rotating shaft 3 then drives the turntable 9 to rotate. When the turntable 9 rotates, it drives the active push block 10 to rotate. During rotation, the active push block 10 collides with the passive push block 11. When the active push block 10 collides with the passive push block 11, the hammer rod 6 is pushed away from the drying cylinder 1, thereby causing the end of the hammer rod 6 with the hammer head 7 fixed thereto to rotate away from the drying cylinder 1. When the hammer rod 6 rotates, the spring 12 is stretched. The stretched spring 12 exerts a pulling force on the hammer rod 6 under its own elasticity. When the tension of the hammer rod 6 cancels out the impact force of the active push block 10 on the passive push block 11, that is when the end of the hammer rod 6 with the hammer head 7 fixed on it moves to the farthest point. After that, the spring 12 still exerts a tension on the hammer rod 6. This tension causes the end of the hammer rod 6 with the hammer head 7 fixed on it to rotate rapidly toward the drying cylinder 1, thereby realizing the hammering of the rubber block 8 on the feed hopper 2. As the turntable 9 rotates, the active push block 10 fixed on the surface of the turntable 9 intermittently impacts the passive push block 11, thereby causing the above steps to be repeated, thus realizing the reciprocating swinging motion of the hammer rod 6 along the hammer rod mounting seat 5.

[0024] Example 3: Based on Example 2, in order to enable the rotating shaft 3 to drive the turntable 9 to rotate, keyways 13 are provided on the surfaces of both the rotating shaft 3 and the turntable 9, and a set of flat keys 14 are movably inserted into the two sets of keyways 13.

[0025] Both the rotating shaft 3 and the turntable 9 have keyways 13 on their surfaces. One end of the flat key 14 is inserted into the keyway 13 on the surface of the rotating shaft 3, and the other end of the flat key 14 is inserted into the keyway 13 on the surface of the turntable 9. When the rotating shaft 3 rotates, the inner wall of the keyway 13 on the surface of the rotating shaft 3 pushes the flat key 14, and the flat key 14 pushes the inner wall of the keyway 13 on the surface of the turntable 9, thereby enabling the rotating shaft 3 to drive the turntable 9 to rotate.

[0026] Example 4: Based on Example 3, in order to achieve axial positioning of the turntable 9, a bushing 18 is fitted on the surface of the rotating shaft 3. The bushing 18 has an annular plate structure. One end of the bushing 18 abuts against the surface of the drying cylinder 1, and the other end of the bushing 18 abuts against the surface of the turntable 9. An end cap 15 is provided at the end of the rotating shaft 3 away from the motor 4. Screw holes 16 are provided on the surfaces of the rotating shaft 3 and the end cap 15. Screws 17 are provided in the screw holes 16 through threaded connections. The end cap 15 abuts against the end of the turntable 9 away from the bushing 18.

[0027] An end cap 15 is installed at the end of the rotating shaft 3 through a screw hole 16 and a screw 17. The end cap 15 abuts against one end of the turntable 9. A bushing 18 is fitted on the surface of the rotating shaft 3. The bushing 18 abuts against the other end of the turntable 9. The end cap 15 and the bushing 18 clamp the turntable 9 in the middle, thereby achieving axial positioning of the turntable 9.

[0028] In actual use, the hammer rod 6 reciprocates along the hammer rod mounting base 5, causing the rubber block 8 fixed to the surface of the hammer head 7 to repeatedly strike the surface of the feed hopper 2. The impact of the rubber block 8 on the feed hopper 2 causes the feed hopper 2 to vibrate. This vibration is transmitted to the raw material that has clumped together in the feed hopper 2, breaking up the clumps and causing the raw material to fall into the drying cylinder 1. Even if the raw material is stuck to the inner wall of the feed hopper 2, it will fall off the inner wall of the feed hopper 2 under the action of vibration, thus achieving the protection of the feed hopper 2. The hammer has a blocking function; simultaneously, a rubber block 8 made of rubber material is set on the surface of the hammer 7 to prevent damage to the feed hopper 2 from the hammer blows; after the motor 4 is powered on, the drive shaft of the motor 4 rotates, which also drives the rotating shaft 3 to rotate, and the rotating shaft 3 drives the turntable 9 to rotate. When the turntable 9 rotates, it drives the active pushing block 10 to rotate. During the rotation, the active pushing block 10 collides with the passive pushing block 11. When the active pushing block 10 collides with the passive pushing block 11, the hammer rod 6 is pushed away from the drying cylinder 1, thereby fixing the hammer rod 6. The end of the hammer rod 6 with the hammer head 7 rotates away from the drying cylinder 1. When the hammer rod 6 rotates, the spring 12 is stretched. The stretched spring 12 exerts a pulling force on the hammer rod 6 under its own elasticity. When the pulling force of the spring 12 on the hammer rod 6 cancels out the impact force of the active push block 10 on the passive push block 11, it is the moment when the end of the hammer rod 6 with the hammer head 7 moves to its farthest point. After that, the spring 12 continues to exert a pulling force on the hammer rod 6. This pulling force causes the end of the hammer rod 6 with the hammer head 7 to rotate rapidly towards the drying cylinder 1, thereby realizing the action of the rubber block 8 on the feed material. As the turntable 9 rotates, the active pushing block 10 fixed on the surface of the turntable 9 intermittently impacts the passive pushing block 11, causing the above steps to repeat cyclically. This enables the hammer rod 6 to reciprocate along the hammer rod mounting base 5. Keyways 13 are provided on the surfaces of both the rotating shaft 3 and the turntable 9. One end of a flat key 14 is inserted into the keyway 13 on the surface of the rotating shaft 3, and the other end of the flat key 14 is inserted into the keyway 13 on the surface of the turntable 9. When the rotating shaft 3 rotates, the keyways 13 on the surface of the rotating shaft 3... The inner wall of shaft 3 pushes the flat key 14, which in turn pushes the inner wall of the keyway 13 on the surface of the turntable 9, thereby enabling the shaft 3 to drive the turntable 9 to rotate. An end cap 15 is installed at the end of the shaft 3 through a screw hole 16 and a screw 17. The end cap 15 abuts against one end of the turntable 9. A bushing 18 is fitted on the surface of the shaft 3. The bushing 18 abuts against the other end of the turntable 9. The end cap 15 and the bushing 18 clamp the turntable 9 in the middle, thereby achieving axial positioning of the turntable 9.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A feedstock handling apparatus for polypropylene production, comprising: The utility model relates to a drying cylinder (1), the top of drying cylinder (1) is provided with feeding hopper (2), the surface of drying cylinder (1) is rotatably connected with the rotating shaft (3), one end of drying cylinder (1) is provided with motor (4), one end of rotating shaft (3) is fixed on the transmission shaft of motor (4), its characterized in that: one end of drying cylinder (1) away from motor (4) is fixed with hammer rod mounting seat (5), the surface of hammer rod mounting seat (5) is rotatably connected with hammer rod (6), one end of hammer rod (6) is fixed with hammer head (7), the other end of hammer head (7) is fixed with rubber block (8), the other end of rubber block (8) is against the surface of feeding hopper (2); The end of rotating shaft (3) away from motor (4) is provided with turntable (9), the surface of turntable (9) is fixed with driving push block (10), the surface of hammer rod (6) is fixed with passive push block (11), passive push block (11) is arranged below hammer head (7).

2. A feedstock treatment apparatus for polypropylene production according to claim 1, characterized in that: The surface of hammer rod (6) is fixed with spring (12), the other end of spring (12) is fixed on the surface of drying cylinder (1), and spring (12) is arranged between hammer head (7) and passive push block (11).

3. A feedstock treatment apparatus for polypropylene production according to claim 1, characterized in that: The surface of rotating shaft (3) and turntable (9) is all provided with keyway (13), and a group of keys (14) are movably inserted in the two groups of keyways (13).

4. A feedstock treatment apparatus for polypropylene production according to claim 1, characterized in that: The surface of rotating shaft (3) is provided with shaft sleeve (18), the shaft sleeve (18) is annular plate structure, one end of shaft sleeve (18) is against the surface of drying cylinder (1), and the other end of shaft sleeve (18) is against the surface of turntable (9).

5. A feedstock treatment apparatus for polypropylene production according to claim 4, characterized in that: The end of rotating shaft (3) away from motor (4) is provided with end cover (15), and the surface of rotating shaft (3) and end cover (15) is all provided with screw hole (16), the screw hole (16) is provided with screw (17) through screw connection, and end cover (15) is against one end of turntable (9) away from shaft sleeve (18).

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