Raw material pretreatment equipment for polypropylene reaction kettle

Abstract

The utility model discloses raw material pretreatment equipment for a polypropylene reaction kettle, which comprises a receiving tank, the lower half part of the receiving tank is provided with an inclined surface, the outer wall of the bottom of the receiving tank is fixedly connected with a vertically arranged mounting sleeve, and a mixing assembly is arranged in the receiving tank. The mixing assembly comprises a screw rod which is in centered rotating connection with the inner wall of the bottom of the mounting sleeve, a motor is fixedly mounted on the outer wall of the bottom of the mounting sleeve, a rotating shaft of the motor and one end of the bottom of the screw rod are coaxially fixed, and an inclined connecting pipe is fixedly connected to the outer wall of the bottom of the receiving tank; one end of the bottom of the connecting pipe is fixedly connected to the bottom of the circumferential outer wall of the mounting sleeve, and the connecting pipe is communicated with the receiving tank and the mounting sleeve. Through the arrangement of the mixing assembly, various raw materials can be fully mixed after the raw materials are sieved and separated, so that the mixing degree of the various raw materials of subsequent finished products is higher; and the quality of finished products is improved.

Description

Technical Field

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

[0002] Polypropylene, abbreviated as PP, is a colorless, odorless, non-toxic, and translucent solid. It is a high-performance thermoplastic synthetic resin, a colorless, translucent, lightweight, and general-purpose thermoplastic plastic with chemical resistance, heat resistance, electrical insulation, high mechanical strength, and good wear resistance. In order to ensure product quality, various raw materials often need to be pretreated before processing.

[0003] A search revealed a utility model patent with Chinese patent publication number CN213824782U, which discloses a polypropylene reactor, comprising a polypropylene reactor body and a polypropylene reactor cover that are sealed and installed as one unit. A stirring device for stirring the internal cavity of the reactor body is installed on the polypropylene reactor cover. The bottom of the polypropylene reactor body is a sloping bottom, and a reactor outlet communicating with the internal cavity of the reactor body is provided on the side of the lowest point of the sloping bottom.

[0004] As mentioned in the above patent, various raw materials need to be stirred during processing to ensure that they are mixed evenly. However, since the raw materials are separated beforehand, it takes longer to mix them completely, which leaves room for improvement. Therefore, a raw material pretreatment device for a polypropylene reactor is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a raw material pretreatment device for a polypropylene reactor to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a raw material pretreatment device for a polypropylene reactor, comprising a receiving tank, characterized in that: the lower half of the receiving tank is set as an inclined surface, and a vertically arranged mounting sleeve is fixedly connected to the outer wall of the bottom of the receiving tank; a mixing component is installed inside the receiving tank; the mixing component includes a spiral rod rotatably connected to the inner wall of the bottom of the mounting sleeve; a motor is fixedly installed on the outer wall of the bottom of the mounting sleeve; the motor shaft and one bottom end of the spiral rod are coaxially fixed; an inclined connecting pipe is fixedly connected to the outer wall of the bottom of the receiving tank; one bottom end of the connecting pipe is fixedly connected to the bottom of the outer circumferential wall of the mounting sleeve, and the connecting pipe communicates with the receiving tank and the mounting sleeve.

[0007] As a further preferred embodiment of this technical solution, two extension plates are fixedly connected to the bottom of the outer circumference of the mounting sleeve, and two stirring racks are rotatably connected inside the receiving tank. The two stirring racks are respectively located on both sides of the spiral rod. The two stirring racks are rotatably connected to the top outer wall of the two extension plates. A second pulley is rotatably connected to the bottom outer wall of each of the two extension plates. A first pulley is fixedly sleeved on the outside of the motor shaft, and a belt is sleeved between each of the two second pulleys and the first pulley.

[0008] After the raw materials are screened, they can be thoroughly mixed, ensuring a higher degree of mixing in the final product and improving its quality. Starting the motor at the bottom of the receiving tank causes the motor shaft to rotate the auger, which then begins to stir and mix the raw materials. The materials slide down the slope of the receiving tank and enter the bottom area through the connecting pipe, ensuring that even materials in the corners are stirred. The motor shaft also drives pulley one to rotate, which in turn drives two pulleys two to rotate synchronously via a belt. This, in turn, causes the mixing frame to rotate synchronously, further improving mixing efficiency.

[0009] As a further preferred embodiment of this technical solution, a screening assembly is installed on the top of the receiving tank. The screening assembly includes a limiting ring coaxially fixed to the outer wall of the top of the receiving tank, a screening frame is placed inside the limiting ring, and a screen plate is provided at the bottom of the screening frame.

[0010] As a further preferred embodiment of this technical solution, a rotating plate is fixedly connected to the top outer wall of the spiral rod, a connecting plate is rotatably connected to one end of the top outer wall of the rotating plate, and one end of the connecting plate is rotatably connected to the top outer wall of the screening frame.

[0011] As a further preferred embodiment of this technical solution, a baffle is slidably inserted into the outer wall of one end of the connecting pipe, and a cylinder is fixedly installed on the outer wall of one end of the connecting pipe, with the output end of the cylinder fixedly connected to the outer wall of one end of the baffle.

[0012] As a further preferred embodiment of this technical solution, a stabilizing plate is rotatably sleeved on the outer circumference of the spiral rod, and one end of the stabilizing plate is fixedly connected to the inner circumference of the receiving tank.

[0013] As a further preferred embodiment of this technical solution, a support frame is fixedly fitted at the bottom of the outer circumference of the receiving tank.

[0014] This utility model provides a raw material pretreatment device for a polypropylene reactor, which has the following advantages:

[0015] This invention, by setting up a mixing component, can fully mix various raw materials after they have been screened, thereby ensuring a higher degree of mixing of various raw materials in the subsequent finished product, which is beneficial to improving the quality of the finished product. Starting the motor at the bottom of the receiving tank causes the motor shaft to drive the screw rod to rotate, which in turn stirs and mixes the various raw materials. Then, the various raw materials slide down the slope of the bottom of the receiving tank and enter the bottom position of the receiving tank through the connecting pipe, ensuring that raw materials located in the corners are also stirred. The motor shaft also drives pulley one to rotate, and pulley one, through a belt, drives two pulleys two to rotate synchronously. At this time, the stirring frame is also driven by pulleys two to rotate synchronously, thereby further improving the mixing efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the hybrid component structure of this utility model;

[0018] Figure 3 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0019] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point B;

[0020] In the diagram: 1. Receiving tank; 2. Support frame; 3. Cylinder; 4. Baffle; 5. Mixing assembly; 6. Sieving assembly; 501. Screw rod; 502. Connecting pipe; 503. Motor; 504. Stirring frame; 505. Extension plate; 506. Pulley 1; 507. Pulley 2; 508. Belt; 601. Rotating plate; 602. Connecting plate; 603. Limiting ring; 604. Screening frame. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] This utility model provides a technical solution: such as Figure 2 and Figure 4As shown in this embodiment, a raw material pretreatment device for a polypropylene reactor includes a receiving tank 1. The receiving tank 1 has a lower half that is sloped, and a vertically installed mounting sleeve is fixedly connected to the outer wall of its bottom. A mixing component 5 is installed inside the receiving tank 1. The mixing component 5 includes a spiral rod 501 rotatably connected to the inner wall of the bottom of the mounting sleeve. A motor 503 is fixedly installed on the outer wall of the bottom of the mounting sleeve. The shaft of the motor 503 and one bottom end of the spiral rod 501 are coaxially fixed. An inclined connecting pipe 502 is fixedly connected to the outer wall of the bottom of the receiving tank 1. One bottom end of the connecting pipe 502 is fixedly connected to the bottom of the outer circumference of the mounting sleeve, and the connecting pipe 502 communicates with the receiving tank 1 and the mounting sleeve.

[0023] Two extension plates 505 are fixedly connected to the bottom of the outer wall of the mounting sleeve. Two stirring racks 504 are rotatably connected inside the receiving tank 1. The two stirring racks 504 are located on both sides of the spiral rod 501. The two stirring racks 504 are rotatably connected to the top outer wall of the two extension plates 505. A pulley 507 is rotatably connected to the bottom outer wall of each of the two extension plates 505. A pulley 506 is fixedly sleeved on the outside of the rotating shaft of the motor 503. A belt 508 is sleeved between each of the two pulleys 507 and the pulley 506.

[0024] By starting the motor 503 at the bottom of the receiving tank 1, the motor 503 shaft drives the screw rod 501 to rotate, and the screw rod 501 can start to stir and mix various raw materials. Then, the various raw materials slide down the slope of the bottom of the receiving tank 1 and enter the bottom position of the receiving tank 1 through the connecting pipe 502, which can ensure that the raw materials located in the corners can also be stirred. The motor 503 shaft will also drive the pulley 506 to rotate, and the pulley 506 can drive the two pulleys 507 to rotate synchronously through the belt 508. At this time, the stirring frame 504 will also be driven to rotate synchronously by the pulleys 507, thereby further improving the mixing efficiency.

[0025] like Figure 1 and Figure 3 As shown, a screening assembly 6 is installed on the top of the receiving tank 1. The screening assembly 6 includes a limiting ring 603 coaxially fixed to the outer wall of the top of the receiving tank 1. A screening frame 604 is placed inside the limiting ring 603, and a screen plate is provided at the bottom of the screening frame 604.

[0026] A rotating plate 601 is fixedly connected to the top outer wall of the screw rod 501. A connecting plate 602 is rotatably connected to one end of the top outer wall of the rotating plate 601. One end of the connecting plate 602 is rotatably connected to the top outer wall of the screening frame 604.

[0027] The produced raw materials are fed into the screening frame 604. While the screw rod 501 is rotating, it will also drive the rotating plate 601 to rotate synchronously. The rotating plate 601 can drive the screening frame 604, which is restricted by the limiting ring 603, to move back and forth, making the screening efficiency of the screening frame 604 higher and larger raw material blocks will be intercepted.

[0028] like Figure 2 As shown, a baffle 4 is slidably inserted into the outer wall of one end of the connecting pipe 502, and a cylinder 3 is fixedly installed on the outer wall of one end of the connecting pipe 502. The output end of the cylinder 3 is fixedly connected to the outer wall of one end of the baffle 4.

[0029] Activate the cylinder 3 outside the connecting pipe 502. The cylinder 3 will drive the baffle 4 away from the connecting pipe 502. At this time, the processed raw material will flow to the outside through the open gap. With the lower inclined receiving tank 1, the discharge can be clean enough.

[0030] like Figure 2 As shown, a stabilizing plate is rotatably sleeved on the outer circumference of the screw rod 501. One end of the stabilizing plate is fixedly connected to the inner circumference of the receiving tank 1, which can increase the stability of the screw rod 501.

[0031] like Figure 1 As shown, a support frame 2 is fixedly fitted at the bottom of the outer circumference of the receiving tank 1, which can lift the device, making material discharge convenient and increasing the support area of ​​the device.

[0032] This utility model provides a raw material pretreatment device for a polypropylene reactor, the specific working principle of which is as follows:

[0033] When the device is working, the produced raw materials are fed into the screening frame 604. As the screw rod 501 rotates, it also drives the rotating plate 601 to rotate synchronously. The rotating plate 601, through the connecting plate 602, drives the screening frame 604, which is restricted by the limiting ring 603, to move back and forth, thus increasing the screening efficiency of the screening frame 604 and intercepting larger pieces of raw materials. During this process, the motor 503 at the bottom of the receiving tank 1 is started. The motor 503's shaft drives the screw rod 501 to rotate, and the screw rod 501 begins to stir and mix the various raw materials. Then, the various raw materials slide down the slope of the bottom of the receiving tank 1 and are then... The raw materials enter the bottom of the receiving tank 1 through the connecting pipe 502, ensuring that even the raw materials in the corners are stirred. The shaft of the motor 503 also drives the pulley 506 to rotate. The pulley 506 drives the two pulleys 507 to rotate synchronously through the belt 508. At this time, the stirring rack 504 is also driven to rotate synchronously by the pulleys 507, thereby further improving the mixing efficiency. After the work is completed, simply start the cylinder 3 outside the connecting pipe 502. The cylinder 3 will drive the baffle 4 to leave the connecting pipe 502. At this time, the processed raw materials will flow to the outside through the open gap. With the lower part of the inclined receiving tank 1, the discharge can be clean enough.

[0034] 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 raw material pre-treatment apparatus for a polypropylene reactor, comprising a receiving tank (1), characterized in that: The lower half of the receiving tank (1) is provided as an inclined surface, and a vertically arranged mounting sleeve is fixedly connected to the outer wall of the bottom of the receiving tank (1), a mixing assembly (5) is installed in the receiving tank (1), the mixing assembly (5) comprises a spiral rod (501) which is centrally and rotatably connected to the inner wall of the bottom of the mounting sleeve, a motor (503) is fixedly installed on the outer wall of the bottom of the mounting sleeve, the rotating shaft of the motor (503) and one end of the bottom of the spiral rod (501) are coaxially fixed, an inclined connecting pipe (502) is fixedly connected to the bottom of the mounting sleeve, and the connecting pipe (502) is in communication with the receiving tank (1) and the mounting sleeve.

2. The raw material pre-treatment apparatus for polypropylene reactor according to claim 1, characterized in that: Two extension plates (505) are fixedly connected to the bottom of the mounting sleeve, two stirring frames (504) are rotatably connected in the receiving tank (1), and the two stirring frames (504) are respectively located on the two sides of the spiral rod (501), the two stirring frames (504) are rotatably connected to the outer wall of the top of the two extension plates (505), one pulley two (507) is rotatably connected to the outer wall of the bottom of each of the two extension plates (505), and a pulley one (506) is fixedly sleeved on the outer part of the rotating shaft of the motor (503).

3. The raw material pre-treatment apparatus for polypropylene reactor according to claim 1, characterized in that: A screening assembly (6) is installed on the top of the receiving tank (1), the screening assembly (6) comprises a limiting ring (603) which is coaxially fixed to the outer wall of the top of the receiving tank (1), a screening frame (604) is placed in the limiting ring (603), and a sieve plate is arranged on the bottom of the screening frame (604).

4. The raw material pre-treatment apparatus for polypropylene reactors according to claim 3, characterized in that: A rotating plate (601) is fixedly connected to the outer wall of the top of the spiral rod (501), a connecting plate (602) is rotatably connected to one end of the outer wall of the top of the rotating plate (601), and one end of the connecting plate (602) is rotatably connected to the outer wall of the top of the screening frame (604).

5. The raw material pre-treatment apparatus for polypropylene reactor according to claim 1, characterized in that: A baffle (4) is slidably inserted into the outer wall of one end of the connecting pipe (502), a pneumatic cylinder (3) is fixedly installed on the outer wall of one end of the connecting pipe (502), and the output end of the pneumatic cylinder (3) is fixedly connected to the outer wall of one end of the baffle (4).

6. The raw material pre-treatment apparatus for polypropylene reactor according to claim 1, characterized in that: A stabilizing plate is rotatably sleeved on the outer wall of the spiral rod (501), and one end of the stabilizing plate is fixedly connected to the inner wall of the receiving tank (1).

7. The raw material pre-treatment apparatus for polypropylene reactor according to claim 1, characterized in that: A supporting frame (2) is fixedly sleeved on the outer wall of the bottom of the receiving tank (1).

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