The invention belongs to the technical field of plastic processing, and specifically discloses a plastic dryer.
Background technique:
Plastics are polymer compounds made by polymerization of monomers as raw materials through addition polymerization or condensation polymerization. Plastic has the advantages of strong corrosion resistance, no reaction with acid and alkali, low manufacturing cost, durability, waterproof, light weight, and easy to be molded into different shapes, so it is widely used in agriculture, machinery industry, chemical industry, and defense industry. It has become one of the indispensable products in life. However, because plastics are not easily degraded, the environmental pollution caused by them is also very serious, so now a large number of plastic recycling companies have emerged.
When plastics are recycled, they generally need to go through multiple steps such as sorting, cleaning, crushing, drying, and melting. Most waste plastics are stained with paints, slag, etc., so they must be cleaned and dried. However, the amount of plastic cleaning and drying is relatively large. The effect of centralized cleaning is better, but the effect of centralized drying is not good. It is located in the middle The plastic is not easy to be dried. In summary, there is a need for a plastic dryer with good drying effect.
Technical realization elements:
The purpose of the present invention is to provide a plastic dryer to solve the problem of poor drying effect of the intermediate plastic when the plastic is intensively dried.
In order to achieve the above objective, the basic solution of the present invention is: a plastic dryer, including a feeding box, a frame and a motor, the feeding box is fixed on the frame, and the upper end of the feeding box is provided with a feeding port. The motor is fixed on the frame and the output end of the motor is arranged horizontally. The output end of the motor extends horizontally into the feeding box. The output end of the motor is provided with a first fan blade. Connected with a spiral tube, the spiral tube is arranged horizontally, the end of the spiral tube close to the first fan blade is aligned with the first fan blade, the upper end of the spiral tube is provided with a powder inlet, the powder inlet is connected with a valve, and the upper end of the valve is connected with a drying The spiral tube is also provided with a number of powder outlets. The position of the powder outlet is far away from the end of the spiral tube that communicates with the feeding box. The spiral tube is concentrically provided with a number of annular openings, and the annular opening is rotatably connected with a rotating ring , The rotating ring and the ring-shaped opening are rotated and sealed. The inner wall of the rotating ring is provided with elastic strips or brushes. The elastic strips or brushes are arranged along the radial direction of the rotating ring. The outer ring of the rotating ring is coaxially provided with a worm gear. The output end of the motor is provided with a first gear, a gear shaft is rotatably connected to the frame, a second gear is provided on the gear shaft, the second gear meshes with the first gear, and a worm is coaxially provided on the gear shaft, The worm gear meshes with the worm.
The working principle of this basic solution is: pour the cleaned and crushed plastic into the feeding box, start the motor, and the motor drives the first fan to rotate. When the first fan rotates, a large amount of airflow is generated, and the airflow gradually removes all plastic Blow into the spiral tube. Open the valve, the dry powder falls into the spiral tube, the airflow will blow the dry powder and the plastic at the same time, when the absorbent powder comes in contact with the water on the plastic, it will absorb the moisture. The output end of the motor can also drive the first gear to rotate, the first gear drives the second gear to rotate, the second gear drives the gear shaft and the worm on the gear shaft to rotate, the worm drives the worm wheel to rotate, and the worm wheel drives the rotating ring to rotate. When the plastic passes through the rotating ring with elastic strips, the elastic strips in the rotating ring will brush to the plastic and make the plastic rotate to change the direction, so that every surface of the plastic can contact with the dry powder and be dried. When the plastic passes through the rotating ring with a brush, the brush can brush off the dry powder contaminated on the plastic, and separate the plastic from the dry powder. When the dry powder is blown near the powder outlet, since the diameter of the powder outlet is smaller than the plastic, the dry powder will flow out of the powder outlet.
The beneficial effects of this basic solution are: 1. In this solution, the airflow generated by the first fan blade is used to blow the plastic and blow the plastic into the spiral tube. Because the spiral tube has a long path, the plastic is blown by the airflow. Over time, the airflow can blow away the water on the spiral tube. 2. In the prior art, when the plastic is intensively dried, the drying effect of the intermediate plastic is not good. In this solution, the plastic does not enter the spiral tube at the same time, but is gradually blown into the spiral tube by the airflow, so the airflow can contact all the plastics and blow down the water on the plastics, and all the plastics can be obtained. dry. 3. After pouring the dry powder into the powder inlet, the dry powder can absorb the water on the plastic surface after contacting with the plastic, and not all the plastic enters the spiral tube at the same time, but the plastic is blown into the spiral tube successively. Therefore, as long as the dry powder is continuously added to the powder inlet, the dry powder can adhere to and dry all the plastics. 4. Although the drying effect of the dry powder is good, it is not easy to fall off when it is attached to the plastic. In this solution, when the plastic passes through the rotating ring with the brush, the brush can brush off the dry powder on the plastic and separate the dry powder from the plastic.
Further, a heating device is provided in the feeding box. With this solution, after the airflow formed by the rotation of the first fan blade is heated, the airflow has a better drying effect on the plastic.
Further, a cloth bag is sleeved on the powder outlet. With this scheme, the dry powder will fall into the cloth bag after falling out of the powder outlet.
Further, the dry powder is a water-absorbing resin. The water-absorbing resin has good water absorption properties and can be reused.
Further, the spiral tube is provided with a collection box at one end away from the feed box. The collection box is used to collect the dried plastic.
Further, the bottom of the collection box is provided with a number of springs, the top of the springs is detachably connected with a number of collection plates, the collection plates are slidably connected to the inner wall of the collection box, the collection plates are provided with a number of screen holes, and the collection box rotates. A fan blade rod is connected, and a second fan blade and a cam are coaxially provided on the fan blade rod. When the plastic enters the collection box, it will inevitably be contaminated with some dry powder. With this solution, when the airflow flows out of the spiral tube, the second fan blade will be blown. The second fan blade drives the cam to rotate. The cam drives the collecting plate to vibrate up and down, and the collecting plate drives the plastic to vibrate. The dry powder on the plastic will vibrate and pass through. The sieve enters the bottom of the collection box.
Description of the drawings
Figure 1 is a schematic diagram of the structure of the plastic dryer in the embodiment;
Figure 2 is a schematic diagram of the structure of the rotating ring.
detailed description
The present invention will be further described in detail below through specific implementations:
The reference signs in the drawings of the specification include: frame 1, feed box 2, feed port 3, motor 4, first gear 5, second gear 6, gear shaft 7, spiral tube 8, worm gear 9, and worm 10 , Cloth bag 11, collection box 12, collection plate 13, spring 14, fan blade rod 15, second fan blade 16, cam 17, rotating ring 18, elastic strip 19, first fan blade 20, drying box 21.
As shown in Figure 1 and Figure 2, the plastic dryer of this embodiment includes a feed box 2, a frame 1, and a motor 4. The feed box 2 is welded to the frame 1, the upper end of the feed box 2 is provided with a feed port 3, and the feed box 2 is provided with an electric heating wire. The motor 4 is welded on the frame 1 and its output end extends into the left end of the feed box 2. The output end of the motor 4 is connected to the right end of the feed box 2 on the part of the feed box 2 with a first fan 20 There are spiral tubes 8. The right end of the spiral tube 8 is aligned with the first fan blade 20. The upper end of the spiral tube 8 is provided with a powder inlet, a valve is connected to the powder inlet, and a drying box 21 is connected to the upper end of the valve, and the drying box 21 is filled with water-absorbing resin. The bottom end of the spiral tube 8 is provided with a powder outlet, the opening of the powder outlet faces the left end horizontally, a screen is provided on the powder outlet, and a cloth bag 11 is also provided on the powder outlet. The part of the spiral tube 8 that is just in the vertical state is provided with an opening concentrically in the tube wall, and a rotating ring 18 is connected to the opening for concentric rotation. The inner ring of the left rotating ring 18 is radially provided with a number of elastic strips 19, the elastic strips The length of 19 is smaller than the radius of the inner ring of the rotating ring 18, and the inner ring of the rotating ring 18 on the right is radially provided with a number of brushes. A worm wheel 9 is concentrically arranged on the outer ring of the rotating ring 18. The output end of the motor 4 is provided with a first gear 5, a gear shaft 7 is rotatably connected to the frame 1, a second gear 6 is provided on the gear shaft 7, and the second gear 6 meshes with the first gear 5, and the gear shaft 7 is A worm 10 is also provided, and each worm wheel 9 meshes with the worm 10. The right end of the spiral tube 8 is connected with a collection box 12, the bottom of the collection box 12 is provided with a number of springs 14, and the top of the spring 14 is detachably connected with a number of collection plates 13, which are slidably connected to the inner wall of the collection box 12. 13 is provided with a number of screen holes, the collection box 12 is rotatably connected with a fan blade rod 15, the fan blade rod 15 is coaxially provided with a second fan blade 16 and a cam 17, the second fan blade 16 is aligned with the spiral tube 8 away from the inlet At one end of the material box 2, the cam 17 abuts against the collecting plate 13.
In the specific implementation, the cleaned and crushed plastic is put into the feeding box 2 from the feeding port 3, the motor 4 and the heating wire are started, and the valve is opened. After the first fan blade 20 rotates, an air flow is generated, and the air flow is heated by the heating wire, and the air flow blows the plastic into the spiral tube 8 and heats and drys it. After the valve is opened, the water-absorbent resin falls into the spiral tube 8 and is contaminated on the plastic, which absorbs water to dry it. At the same time, the airflow blows the plastic and the water-absorbent resin to continue moving in the spiral tube 8. The first gear 5 on the motor 4 drives the second gear 6 to rotate, the second gear 6 drives the worm gear 9 and the worm 10 to rotate, and the worm gear 9 drives the rotating ring 18 to rotate. When the plastic passes through the rotating ring 18 on the left, the plastic rotates under the action of the elastic strip 19 so that all surfaces of the plastic can contact with the water-absorbing resin. When the plastic passes through the rotating ring 18 on the right, the water-absorbing resin on the plastic will be brushed off by the brush. Most of the water absorbing resin can pass through the screen and enter the cloth bag 11 when passing through the powder outlet. The plastic continues to move in the spiral tube 8 and finally enters the collection box 12. When the airflow enters the collection box 12 from the spiral tube 8, the airflow will blow the second fan blade 16. The second fan blade 16 drives the fan rod 15 to rotate, the fan rod 15 drives the cam 17 to rotate, and the cam 17 drives the collecting plate 13 Vibration, the collection plate 13 drives the plastic to vibrate, and the water-absorbing particles on the plastic will be shaken down and pass through the sieve holes on the collection plate 13, and finally fall to the bottom of the collection box 12.
What has been described above is only an embodiment of the present invention, and common knowledge such as specific structures and characteristics that are well-known in the solution are not described here. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made. These should also be regarded as the protection scope of the present invention, and these will not affect the implementation of the present invention. Effectiveness and utility of patents.
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