Air conveying mechanism of PE particle production line

Abstract

The utility model relates to the relevant technical field of PE (polyethylene) production, in particular to an air conveying mechanism of a PE particle production line, which comprises a material conveying pipe, a second transmission shaft, a main shaft, a plurality of scrapers, a plurality of structural grooves, a first air inlet, a second air inlet, a third air inlet and a fourth air inlet. And a feeding hopper is fixedly connected above the conveying pipe. The main shaft is driven by the first motor to rotate, the scraping plate on the main shaft scrapes PE particles adsorbed on the inner wall of the conveying pipe, the contact area of the scraping plate and the particles is increased through the structural groove formed in the scraping plate, the scraping effect is improved, and the conveying problem caused by particle accumulation in the conveying pipe is reduced; the second motor drives the rotating shaft to rotate, the blades on the rotating shaft convey particles entering the feeding hopper downwards along with the rotating shaft, meanwhile, the particles attached to the inner wall of the feeding hopper are removed, accumulation of the particles in the feeding hopper is reduced, and the influence on follow-up conveying is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field related to PE production, in particular to a pneumatic conveying mechanism of a PE granule production line. Background Art

[0002] Polyethylene, also known as PE, is a common plastic. In the production process of polyethylene, a pneumatic conveying mechanism is usually used to transport raw materials, granules or finished products, as well as to clean dust and waste on the production line. Now, a pneumatic conveying mechanism of a PE granule production line is designed.

[0003] According to the Chinese patent: CN217165319U, a pneumatic conveying device of a PE granulation production line, includes: a pneumatic conveying cylinder, one end of the pneumatic conveying cylinder is internally fixedly installed with a fan, a feeding box is arranged above one end of the pneumatic conveying cylinder, a discharging box is arranged below the other end of the pneumatic conveying cylinder, a cleaning frame is slidably connected inside the discharging box, an electrostatic adsorption net is closely adhered to the bottom inner wall of the cleaning frame, a connecting block with a "U" - shaped structure is closely welded to the outer wall of one side of the discharging box, the connecting block is movably connected with a draw plate, one end of the draw plate is closely welded with a sealing plate, and the sealing plate is inserted and matched with the discharging box, one end of the sealing plate is welded and fixed to the end of the piston rod of a cylinder, and the cylinder is fixedly installed on the outer wall of one side of the discharging box. Based on the above - mentioned disclosed patent and combined with the existing technology, it is found that:

[0004] 1. In the currently used pneumatic conveying mechanism for PE granule production, granules are prone to accumulate and adhere during movement in the pipeline, making the pipeline in the pneumatic conveying mechanism prone to blockage, affecting the smooth transportation of granules;

[0005] 2. When pouring PE granules into the hopper, due to the mutual movement between granules, friction is generated, and the friction causes the generation of static electricity, resulting in some granules being adsorbed to the inner wall of the hopper, affecting subsequent transportation. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a pneumatic conveying mechanism of a PE granule production line to solve the problems existing in the use of the existing pneumatic conveying mechanism in the above - mentioned background art.

[0007] To solve the above - mentioned technical problems, the utility model provides the following technical solutions:

[0008] A pneumatic conveying mechanism of a PE granule production line, includes:

[0009] A material conveying pipe, which is the conveying channel of the device, and a second transmission shaft is movably installed inside it;

[0010] The second transmission shaft is fixedly connected to the main shaft, several scraping plates are fixedly connected to the surface of the main shaft, and several structural grooves are opened on the scraping plates;

[0011] Above the material conveying pipe, a feed hopper is fixedly connected. At the top of the feed hopper, a second motor is fixedly connected. The second motor is drivingly connected to a rotating shaft, and blades are fixedly connected to the surface of the rotating shaft.

[0012] A first motor is fixedly installed on the material conveying pipe.

[0013] Preferably, a transmission box is fixedly installed on the front side of the first motor.

[0014] A driving wheel, which is drivingly connected to the output end of the first motor.

[0015] Preferably, a driven wheel meshing with the driving wheel is arranged above the driving wheel, and the driven wheel is also movably installed in the transmission box.

[0016] Preferably, a first transmission shaft is fixedly connected to the driven wheel.

[0017] A transmission belt, which is drivingly installed between the first transmission shaft and the second transmission shaft.

[0018] Preferably, a blower is fixedly installed at the front end of the material conveying pipe.

[0019] Preferably, a feed inlet is fixedly connected to the top of the feed hopper.

[0020] Preferably, the blades are fixedly connected to the rotating shaft, and the blades are spiral.

[0021] The embodiment of the present utility model provides an air conveying mechanism for a PE particle production line, having the following beneficial effects:

[0022] 1. By driving the main shaft to rotate through the first motor, the scraper on the main shaft scrapes the PE particles adsorbed on the inner wall of the material conveying pipe. The structure grooves opened on the scraper increase the contact area between the scraper and the particles, improve the scraping effect, and reduce the conveying problems caused by particle accumulation in the material conveying pipe.

[0023] 2. By driving the rotating shaft to rotate through the second motor, the blades on the rotating shaft convey the particles entering the feed hopper downward, and at the same time remove the particles adhering to the inner wall of the feed hopper, reducing the accumulation of particles in the feed hopper and reducing the influence on subsequent conveying. Description of the Drawings

[0024] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0025] Figure 1 is the overall structural schematic diagram of an air conveying mechanism for a PE particle production line of the present utility model;

[0026] Figure 2 It is a schematic diagram of the scraper drive structure of the pneumatic conveying mechanism of a PE particle production line of the present utility model;

[0027] Figure 3 It is a schematic diagram of the overall structure of the scraper of the pneumatic conveying mechanism of a PE particle production line of the present utility model;

[0028] Figure 4 It is a schematic diagram of the auxiliary blanking structure of the feeding hopper of the pneumatic conveying mechanism of a PE particle production line of the present utility model.

[0029] In the figure: 1, material conveying pipe; 2, fan; 3, transmission box; 4, first motor; 5, feeding hopper; 6, feeding port; 7, driving wheel; 8, driven wheel; 9, first transmission shaft; 10, second transmission shaft; 11, transmission belt; 12, main shaft; 13, scraper; 14, structural groove; 15, second motor; 16, rotating shaft; 17, blade. Specific embodiments

[0030] The following is a description of the preferred embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the present utility model, and are not used to limit the present utility model.

[0031] Embodiment: As Figure 1 shown, a pneumatic conveying mechanism of a PE particle production line includes: a material conveying pipe 1, which is the main conveying structure of the device, and a fan 2 is fixedly installed at the front end to provide power for the conveying of the device. A feeding hopper 5 is fixedly connected above the material conveying pipe 1, which is the feeding structure of the device. PE particles enter the device from here and are conveyed. Above the material conveying pipe 1, between the fan 2 and the feeding hopper 5, a transmission box 3 and a first motor 4 are fixedly installed, and the two are the transmission structures of the device, providing power for the scraper 13 in the material conveying pipe 1.

[0032] As Figures 2-3As shown in the figure, it includes a driving wheel 7 and a driven wheel 8, both of which are movably installed in the transmission case 3 and are meshed with each other. Among them, the driving wheel 7 is in transmission connection with the first motor 4, and the driven wheel 8 is fixedly connected to the first transmission shaft 9. By the first motor 4, the driving wheel 7 can be rotated, and then through transmission, the driven wheel 8 drives the first transmission shaft 9 to rotate. A second transmission shaft 10 is movably installed in the material conveying pipe 1, and a transmission belt 11 is installed between the first transmission shaft 9 and the second transmission shaft 10 for transmission. The end of the second transmission shaft 10 is fixedly connected to the main shaft 12, and the end of the main shaft 12 is movably installed in the material conveying pipe 1 through a limit ring. Four scraper plates 13 are fixedly connected to the surface of the main shaft 12, which are L-shaped and closely attached to the inner wall of the material conveying pipe 1. Both the main shaft 12 and the scraper plates 13 are made of stainless steel. The second transmission shaft 10 driven by the first motor 4 can drive the main shaft 12 and the scraper plates 13 to rotate in the material conveying pipe 1, and scrape the PE particles adhering to the inner wall of the material conveying pipe 1. A number of structural grooves 14 are opened on the scraper plates 13 to increase the contact area and probability between the scraper plates 13 and the PE particles, and improve the working efficiency of the scraper plates 13.

[0033] As Figure 4 shown in the figure, it includes a feeding port 6, which is fixedly connected to the feeding hopper 5 and is the inlet of PE particles. A second motor 15 is fixedly installed on the top of the feeding hopper 5. The second motor 15 is in transmission connection with a rotating shaft 16 below it, and the end of the rotating shaft 16 is movably arranged in the feeding hopper 5 through a limit ring. Blades 17 are spirally wound and connected to the surface of the rotating shaft 16, and the blades 17 are divided into upper and lower parts. The diameter of the upper part of the blades 17 is larger than that of the lower part. Starting the second motor 15 to drive the rotating shaft 16 makes the blades 17 rotate and work, and conveys the incoming PE particles downward to prevent the particles from adhering to the inner wall of the feeding hopper.

[0034] Working principle: The PE particles are sent into the feeding hopper 5 through the feeding port 6. Start the second motor 15 to drive the rotating shaft 16 to rotate, and the blades 17 on the rotating shaft 16 will convey the particles entering the feeding hopper 5 downward, and at the same time, remove the particles adhering to the inner wall of the feeding hopper 5, reducing the accumulation of particles in the feeding hopper 5 and the impact on subsequent conveying. Start the blower 2 to use the wind force to convey the particles entering the material conveying pipe 1 through the feeding hopper 5. Start the first motor 4 to drive the main shaft 12 to rotate, and the scraper plates 13 on the main shaft 12 will scrape the PE particles adsorbed on the inner wall of the material conveying pipe 1. The structural grooves 14 opened on the scraper plates 13 increase the contact area between the scraper plates 13 and the particles, improve the scraping effect, and reduce the conveying problems caused by particle accumulation in the material conveying pipe.

[0035] Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An air conveying mechanism for a PE particle production line, characterized in that, Including: A material conveying pipe (1), which is a conveying channel of the device, and a second drive shaft (10) is movably installed inside it; The second drive shaft (10) is fixedly connected to the main shaft (12), and a plurality of scraping plates (13) are fixedly connected to the surface of the main shaft (12), and a plurality of structural grooves (14) are formed on the scraping plates (13); An inlet hopper (5) is fixedly connected above the material conveying pipe (1), a second motor (15) is fixedly connected to the top of the inlet hopper (5), the second motor (15) is drivingly connected to a rotating shaft (16), and blades (17) are fixedly connected to the surface of the rotating shaft (16); A first motor (4) is fixedly installed on the material conveying pipe (1).

2. The air conveying mechanism of the PE particle production line according to claim 1, wherein, A transmission box (3) is fixedly installed on the front side of the first motor (4); A driving wheel (7), which is drivingly connected to the output end of the first motor (4).

3. The pneumatic conveying mechanism of the PE pellet production line according to claim 2, characterized in that, A driven wheel (8) meshing with the driving wheel (7) is arranged above the driving wheel (7), and the driven wheel (8) is also movably installed in the transmission box (3).

4. The air conveying mechanism of the PE pellet production line according to claim 3, characterized in that, A first drive shaft (9) is fixedly connected to the driven wheel (8); A transmission belt (11) is drivingly installed between the first drive shaft (9) and the second drive shaft (10).

5. The air conveying mechanism of the PE particle production line according to claim 1, characterized in that A blower (2) is fixedly installed at the front end of the material conveying pipe (1).

6. The air conveying mechanism of the PE pellet production line according to claim 1, characterized in that, An inlet port 1 (6) is fixedly connected to the top of the inlet hopper (5).

7. The air conveying mechanism of the PE particle production line according to claim 1, characterized in that, The blades (17) are fixedly connected to the rotating shaft (16), and the blades (17) are spiral-shaped.

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