Automatic feeding device for PP regenerated plastic particles

Abstract

The utility model relates to an automatic PP regenerated plastic particle feeding device which comprises a feeding box provided with a feeding hopper. The discharging hopper is used for discharging the PP regenerated plastic particles; a screen for screening PP regenerated plastic particles is embedded in the middle of the inclined discharging plate, and the interior of the feeding box is divided into an upper feeding area and a lower dust removal area through the inclined discharging plate; a negative-pressure air suction and suction mechanism I and a negative-pressure air suction and suction mechanism II are arranged in the upper feeding area; a dust collection water tank is arranged in the lower dust removal area; the device further comprises an exhaust fan. According to the PP regenerated plastic particle screening device, the inclined discharging plate and the screen are arranged in the feeding box, screening of PP regenerated plastic particles is achieved, crushed material residues are removed, the purity and uniformity of the particles are improved, the negative-pressure air suction and suction mechanism I and the negative-pressure air suction and suction mechanism II are matched, dust particles can be effectively sucked and removed in the feeding link and the discharging link, and the working efficiency is improved. The pollution to the production environment is greatly reduced, and the product quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastic particle processing, specifically to a PP (polypropylene) recycled plastic particle automatic feeding device. BACKGROUND

[0002] In the production and processing of PP (polypropylene) recycled plastic particles, automatic feeding is a crucial link. However, the existing PP recycled plastic particle automatic feeding device has some problems in the feeding and discharging process, such as dust particles flying and a large amount of broken material. These problems not only affect the cleanliness of the production environment, but also may have adverse effects on the subsequent production process and product quality.

[0003] Specifically, when PP recycled plastic particles are fed into the feeding device, a large amount of dust particles will be generated due to friction and collision between the particles. These dust particles not only pollute the production environment, but also may adhere to the surface of the particles, affecting the purity and quality of the particles. In addition, the existing feeding device often lacks a particle size screening function, which may affect the processing performance and final quality of the product when some broken residue enters the subsequent production process.

[0004] To solve these problems, some manufacturers have tried to add dust removal equipment such as dust collectors or vacuum cleaners to the feeding device. However, these devices can only reduce the flying of dust particles to a certain extent, and cannot completely solve the problem of dust pollution and uneven particle size. At the same time, the addition of these devices increases the production cost and the complexity of the equipment.

[0005] Therefore, in view of the deficiencies of the prior art, there is an urgent need for a PP recycled plastic particle automatic feeding device that can remove dust during the automatic feeding of PP recycled plastic particles and screen broken residue. INVENTION CONTENTS

[0006] The technical problem to be solved by the utility model is to provide a PP recycled plastic particle automatic feeding device that can remove dust during the automatic feeding of PP recycled plastic particles and screen broken residue in view of the deficiencies of the prior art.

[0007] The technical problem to be solved by the utility model is solved by the following technical solution. A PP recycled plastic particle automatic feeding device includes a feeding box, which has;

[0008] A feeding hopper is fixed to the top of the feeding box and is configured to add PP recycled plastic particles to the feeding box.

[0009] A discharge hopper is fixed to the bottom of the feeding box and is configured to discharge the PP recycled plastic particles.

[0010] The inclined discharge plate is arranged on the inner wall of the upper feeding tank between the upper feeding hopper and the discharge hopper, a screen mesh for screening the PP recycled plastic particles is arranged in the middle part of the inclined discharge plate, and the inner part of the upper feeding tank is divided into an upper feeding area and a lower dust removal area by the inclined discharge plate.

[0011] The negative pressure suction fan mechanism I and the negative pressure suction fan mechanism II are arranged in the upper feeding area.

[0012] The dust collecting water tank is arranged in the lower dust removal area, and the top of the dust collecting water tank is hollowed out, so that the dust particles falling from the screen mesh can fall into the dust collecting water tank under the action of gravity.

[0013] The exhaust fan is further fixedly installed on the bottom outer wall of the upper feeding tank, one end of the exhaust fan is connected to the negative pressure suction fan mechanism I and the negative pressure suction fan mechanism II through pipelines, and the other end is connected to the bottom inner part of the dust collecting water tank through a pipeline, so that the dust-containing gas can be sucked into the dust collecting water tank.

[0014] The technical problem to be solved by the utility model can also be solved by the following technical scheme, the PP recycled plastic particle automatic feeding device, a fixed guide plate is arranged in the upper feeding area, and the fixed guide plate is arranged obliquely, and the included angle between the fixed guide plate and the horizontal plane is an acute angle.

[0015] The technical problem to be solved by the utility model can also be solved by the following technical scheme, the PP recycled plastic particle automatic feeding device, a movable guide plate is further arranged in the upper feeding area, the bottom surface of the movable guide plate is fixed to the inner wall of the upper feeding tank below the fixed guide plate through a bolt fastener, and the included angle between the movable guide plate and the horizontal plane is an acute angle.

[0016] The technical problem to be solved by the utility model can also be solved by the following technical scheme, the PP recycled plastic particle automatic feeding device, the top end of the fixed guide plate is fixed to the top of the upper feeding tank, the middle part of the fixed guide plate is located directly below the upper feeding hopper, the bottom end of the fixed guide plate is opposite to the middle part of the movable guide plate, and the bottom end of the movable guide plate is opposite to the top end of the inclined discharge plate.

[0017] The technical problem to be solved by the utility model can also be solved by the following technical scheme, the PP recycled plastic particle automatic feeding device, the negative pressure suction fan mechanism I is located between the top end of the movable guide plate and the top inner wall of the upper feeding tank, so that dust removal can be performed when the PP recycled plastic particles are fed.

[0018] The negative pressure suction fan mechanism II is located on the inner wall of the upper feeding tank above the bottom end of the inclined discharge plate and the discharge hopper, so that dust removal can be performed when the PP recycled plastic particles are discharged.

[0019] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the above-mentioned automated feeding device for PP recycled plastic granules includes both the negative pressure suction and exhaust mechanism I and the negative pressure suction and exhaust mechanism II.

[0020] The suction box has a suction pipe that extends out of the feeding box and is connected to the exhaust fan on its side wall;

[0021] The suction plate is fixed to the side wall of the suction box, and several air holes are opened on the suction plate to facilitate air intake into the suction box.

[0022] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the above-mentioned automated feeding device for recycled PP plastic granules has a material valve installed at the bottom of the discharge hopper.

[0023] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0024] (1) By setting an inclined discharge plate and screen in the feeding box, not only can the PP recycled plastic particles be screened, the broken residues are removed, and the purity and uniformity of the particles are improved, but also, in conjunction with the negative pressure suction and exhaust mechanism I and the negative pressure suction and exhaust mechanism II, dust particles can be effectively removed in the feeding and discharging stages, which greatly reduces the pollution of the production environment and improves the product quality.

[0025] (2) The setting of fixed guide plate and movable guide plate allows the particles to slide down along a specific path during the feeding process, avoiding the phenomenon of material accumulation during feeding and discharging, and ensuring the effect of subsequent screening of crushed residue.

[0026] (3) A dust-laden gas is drawn into a dust collection water tank by an exhaust fan, and the dust is removed by the gravity settling effect of water. This achieves the dust removal effect and avoids the secondary pollution that may be generated by traditional dust removal equipment.

[0027] (4) The setting of the material valve makes the discharge process more flexible and controllable. Through the integrated design of automated feeding and dust removal screening, manual intervention is reduced, production efficiency is improved, and production costs are reduced. At the same time, the device can continuously and stably provide high-quality PP recycled plastic granules, providing a reliable raw material guarantee for subsequent processing technology. Attached Figure Description

[0028] Fig. 1 This is a schematic diagram of the main structure of this utility model;

[0029] Fig. 2 This is a side view of the movable guide plate of this utility model.

[0030] Reference signs: 1, feeding box; 2, feeding hopper; 3, discharge hopper; 4, material valve; 5, inclined discharge plate; 6, screen; 7, dust collecting water tank; 8, fixed guide plate; 9, movable guide plate; 10, suction box; 11, suction plate; 12, air extractor. DETAILED DESCRIPTION

[0031] The specific technical solutions of the utility model are further described below with reference to the drawings, so that those skilled in the art can further understand the utility model without limiting the rights thereof.

[0032] Embodiment 1, refer to Figs. 1-2 A PP recycled plastic particle automatic feeding device, comprising a feeding box 1, which has;

[0033] The feeding hopper 2 is fixed on the top of the feeding box 1, which is configured to add PP recycled plastic particles into the feeding box 1;

[0034] The discharge hopper 3 is fixed at the bottom of the feeding box 1, which is configured to discharge the PP recycled plastic particles, and the material valve 4 is installed at the bottom of the discharge hopper 3, which can control the discharge of the PP recycled plastic particles when discharging and packaging;

[0035] The inclined discharge plate 5 is formed in a generally plate-shaped structure, and its size can be selected according to the use requirements, which is located on the inner wall of the feeding box 1 between the feeding hopper 2 and the discharge hopper 3, and the included angle between the inclined discharge plate 5 and the horizontal plane can be selected, for example, 35°, and the screen 6 for screening the PP recycled plastic particles is embedded in the middle of the inclined discharge plate 5, and the mesh size of the screen 6 can be selected according to the use requirements, and the design purpose is to facilitate the residual and defective dust to fall into the dust collecting water tank 7 below by the screen 6 under its own weight, and the feeding box 1 is divided into an upper feeding area and a lower dust removal area by the inclined discharge plate 5;

[0036] In order to make the material in and out of the order, prevent the material from stacking, and also ensure that the residual material can smoothly pass through the screen 6 and fall into the dust collecting water tank 7 below, a fixed guide plate 8 is arranged in the upper feeding area, the fixed guide plate 8 is formed in a substantially plate-shaped structure, the shape and size thereof can be selected according to the use requirement, the fixed guide plate 8 is arranged obliquely, the included angle between the fixed guide plate 8 and the horizontal plane is an acute angle, and the specific angle can be selected according to the use requirement, for example, 25°. An active guide plate 9 is also arranged in the upper feeding area, the active guide plate 9 is formed in a substantially plate-shaped structure, the shape and size thereof can be selected according to the use requirement, the bottom surface of the active guide plate 9 is fixed on the inner wall of the feeding tank 1 below the fixed guide plate 8 through a bolt fastener, the included angle between the active guide plate 9 and the horizontal plane is an acute angle, and the specific angle can be selected according to the use requirement, for example, 55°. The top end of the fixed guide plate 8 is fixed on the top of the feeding tank 1, the middle part of the fixed guide plate 8 is located directly below the feeding hopper 2, and the bottom end of the fixed guide plate 8 is opposite to the middle part of the active guide plate 9. The bottom end of the active guide plate 9 is opposite to the top end of the inclined discharge plate 5.

[0037] The arrangement of the fixed guide plate 8 and the active guide plate 9 enables the particles to slide along a specific path during the feeding process, avoids the phenomenon of material stacking during the feeding and discharging, and ensures the screening effect of the broken residual material.

[0038] A negative pressure suction fan mechanism I and a negative pressure suction fan mechanism II are arranged in the upper feeding area. The negative pressure suction fan mechanism I is located between the top end of the active guide plate 9 and the top inner wall of the feeding tank 1, so as to perform dust removal when the PP regenerated plastic particles are fed. The negative pressure suction fan mechanism II is located on the inner wall of the feeding tank 1 above the bottom end of the inclined discharge plate 5 and the discharge hopper 3, so as to perform dust removal when the PP regenerated plastic particles are discharged.

[0039] The negative pressure suction fan mechanism I and the negative pressure suction fan mechanism II both include:

[0040] A suction box 10, which is formed in a substantially square box body structure, the shape and size thereof can be selected according to the use requirement, and the side wall of the suction box 10 is connected with a suction pipe which extends to the outside of the feeding tank 1 and is connected with a suction fan;

[0041] A suction plate 11, which is formed in a substantially hollow plate structure, has a cavity inside which is communicated with the air hole and the inside of the suction pipe, and is fixed on the side wall of the suction box 10. A plurality of air holes are formed on the suction plate 11, which are circular holes and are used for air intake of the inside of the suction box 10. The number and size of the air holes can be selected according to the use requirement.

[0042] A dust collecting water tank 7 is arranged in the lower dust removal area. The dust collecting water tank 7 is formed in a box shape, and its size can be selected according to the use requirement. The dust collecting water tank 7 is filled with water, and the top of the dust collecting water tank 7 is hollowed out, so that the dust particles falling from the screen 6 can fall into the dust collecting water tank 7 by gravity.

[0043] A suction fan 12 is further fixedly installed on the bottom outer wall of the feeding box 1. One end of the suction fan 12 is connected to the negative pressure suction fan 12a and the negative pressure suction fan 12b through pipelines, and the other end is connected to the bottom of the dust collecting water tank 7 through a pipeline, so that the dust-containing gas is sucked into the dust collecting water tank 7. It should be noted that, in order to avoid the water in the dust collecting water tank 7 flowing back into the suction fan 12, the height of the suction fan 12 is arranged on the outer wall of the feeding box 1 above the dust collecting water tank 7.

[0044] The use principle of the PP recycled plastic particle automatic feeding device in the embodiment 1 is as follows:

[0045] (1) Feeding stage: the PP recycled plastic particles are poured into the feeding hopper 2, and the particles will slide along the fixed guide plate 8 and the movable guide plate 9 to the inclined discharge plate 5. In the process of sliding, the negative pressure suction fan 12a will suck the dust particles on the surface of the particles, on the one hand to keep the particles clean, and on the other hand to form a negative pressure suction environment in the feeding box 1 at the feeding hopper 2, which can avoid dust generation at the feeding hopper 2. When the particles pass through the screen 6, the broken residue will be screened out and fall into the dust collecting water tank 7 by gravity.

[0046] (2) Discharge stage: when discharging is needed, the operator can open the valve 4 at the bottom of the discharge hopper 3, and the PP recycled plastic particles will slide along the inclined discharge plate 5 to the discharge hopper 3. In the discharging process, the negative pressure suction fan 12b will continue to suck the dust particles on the surface of the particles to ensure the cleanliness of the discharge. After discharging, a switch door can be installed on the side wall of the feeding box 1, so that the sewage and the deposited broken residue in the dust collecting water tank 7 can be easily removed.

Claims

1. An automated feeding device for recycled PP plastic granules, characterized in that: Includes a feeding box, which has; A feeding hopper, which is fixed to the top of the feeding box, is configured to add PP recycled plastic granules into the feeding box; The discharge hopper is fixed at the bottom of the feeding box and is configured to discharge PP recycled plastic granules. The inclined discharge plate is located on the inner wall of the feeding box between the feeding hopper and the discharge hopper. A screen for screening PP recycled plastic granules is embedded in the middle of the inclined discharge plate. The inclined discharge plate divides the inside of the feeding box into an upper feeding area and a lower dust removal area. Negative pressure suction and exhaust mechanism I and negative pressure suction and exhaust mechanism II are installed in the upper feeding area; A dust collection water tank is installed in the lower dust removal area. The top of the dust collection water tank is hollowed out so that the dust particles falling from the screen can fall into the dust collection water tank by their own weight. An exhaust fan is also fixedly installed on the bottom outer wall of the feeding box. One end of the exhaust fan is connected to the negative pressure suction mechanism I and the negative pressure suction mechanism II through pipes, and the other end is connected to the bottom of the dust collection water tank through pipes, so as to draw the dust-containing gas into the dust collection water tank.

2. The automated feeding device for PP recycled plastic granules according to claim 1, characterized in that: A fixed guide plate is installed in the upper feeding area. The fixed guide plate is set at an angle, and the angle between it and the horizontal plane is an acute angle.

3. The automated feeding device for PP recycled plastic granules according to claim 2, characterized in that: A movable guide plate is also installed in the upper feeding area. The bottom surface of the movable guide plate is fixed to the inner wall of the feeding box below the fixed guide plate by bolt fasteners. The angle between the movable guide plate and the horizontal plane is an acute angle.

4. The automated feeding device for PP recycled plastic granules according to claim 3, characterized in that: The top of the fixed guide plate is fixed to the top of the feeding box, the middle of the fixed guide plate is located directly below the feeding hopper, the bottom of the fixed guide plate is directly opposite the middle of the movable guide plate, and the bottom of the movable guide plate is directly opposite the top of the inclined discharge plate.

5. The automated feeding device for PP recycled plastic granules according to claim 4, characterized in that: The negative pressure suction and exhaust mechanism I is located between the top of the movable guide plate and the top inner wall of the feeding box, so as to remove dust when PP recycled plastic granules are fed. The negative pressure suction and exhaust mechanism II is located on the inner wall of the feeding box at the bottom of the inclined discharge plate and directly above the discharge hopper, so as to remove dust when PP recycled plastic granules are discharged.

6. The automated feeding device for PP recycled plastic granules according to claim 1, characterized in that: Both the negative pressure suction and exhaust mechanism I and the negative pressure suction and exhaust mechanism II include: The suction box has a suction pipe that extends out of the feeding box and is connected to the exhaust fan on its side wall; The suction plate is fixed to the side wall of the suction box, and several air holes are opened on the suction plate to facilitate air intake into the suction box.

7. The automated feeding device for PP recycled plastic pellets according to claim 1, characterized in that: A material valve is installed at the bottom of the discharge hopper.

Images