Electric heating dryer

Abstract

The utility model belongs to the technical field of plastic drying, and particularly relates to an electric heating dryer which comprises a drying cylinder, a first heating mechanism arranged at the bottom of the drying cylinder, a second heating mechanism arranged on the inner top wall of the drying cylinder, an inclined plate arranged on the inner side of the drying cylinder, and a first discharging hole formed in the downwards-inclined side of the inclined plate. A first rotating shaft is rotationally installed on the inner wall of the drying cylinder and located below the inclined plate, spiral pushing blades are arranged on the outer wall of the first rotating shaft, a motor is arranged on one side of the drying cylinder, an output shaft of the motor is connected with one end of the first rotating shaft, and a discharging pipe is fixed to one side of the bottom of the drying cylinder in a penetrating mode; a feeding pipe is fixed to the top of the drying cylinder and close to the raising part of the inclined plate in a penetrating mode. The first heating mechanism comprises a heating box fixed to the bottom of the drying cylinder, and a heating plate is fixed to the inner side of the heating box; the plastic particle drying device can continuously dry a large number of plastic particles, the drying effect is good, the plastic particle drying device can be suitable for drying a large number of plastic particles, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of plastic drying, and specifically relates to an electric heating dryer. Background Art

[0002] In the production and processing of plastic products, the melting of plastic pellets is a crucial step. In this process, the raw materials need to be heated to a molten state in a precisely controlled manner in order to carry out subsequent injection molding or blow molding operations. However, the cleanliness of the raw material pellets has a decisive influence on the quality of the final product. Therefore, before melting, it is an essential step to thoroughly clean the plastic pellets. The purpose of cleaning is to remove impurities, oil stains and dust on the surface of the pellets to ensure the purity of the raw materials. The importance of this link lies in the fact that any tiny contaminants may cause problems during the melting process, such as uneven color, bubble generation or decreased mechanical properties, which in turn affects the quality and service life of the final plastic product. After cleaning, the drying step is also critical. Through effective drying treatment, it can be ensured that the moisture inside the pellets is completely removed to avoid quality problems caused by moisture evaporation during the melting process. In addition, drying also helps prevent the pellets from mildewing or deterioration during storage and transportation.

[0003] Existing drying equipment usually adopts a batch processing method, that is, a certain amount of plastic particles are placed in the heating barrel for drying. After the batch is dried, the particles in the barrel can be discharged and new plastic particles can be placed again to repeat the entire heating process. This heating method has obvious limitations and cannot achieve continuous drying of a large number of plastic particles, so the use effect of the equipment is significantly affected. Utility Model Content

[0004] The utility model aims to provide an electric heating dryer, which can continuously dry a large number of plastic particles, has a good drying effect, can adapt to the drying of large quantities of plastic particles, and improves work efficiency.

[0005] The technical solutions adopted in this utility are as follows:

[0006] An electric drying machine comprises a drying cylinder, wherein a first heating mechanism is arranged at the bottom of the drying cylinder, a second heating mechanism is arranged on the inner top wall of the drying cylinder, an inclined plate is arranged on the inner side of the drying cylinder, a first discharge hole is opened on the downward inclined side of the inclined plate, a first rotating shaft is rotatably mounted on the inner wall of the drying cylinder and located below the inclined plate, a spiral pushing blade is arranged on the outer wall of the first rotating shaft, a motor is arranged on one side of the drying cylinder, an output shaft of the motor is connected to one end of the first rotating shaft, a discharge pipe is fixed through one side of the bottom of the drying cylinder, and a feed pipe is fixed through the top of the drying cylinder and close to the raised part of the inclined plate.

[0007] Furthermore, the first heating mechanism comprises a heating box fixed at the bottom of the drying cylinder, a heating plate fixed on the inner side of the heating box, and an adding pipe fixed through one side of the heating box.

[0008] Furthermore, the second heating mechanism includes a heating box with a serpentine tube fixed inside, the outer wall of the heating box is provided with a blowing pump connected to the other end of the serpentine tube, the air outlet of the blowing pump is connected to a connecting pipe, the inner top wall of the drying cylinder is fixed with an air collecting box connected to the connecting pipe, and the bottom of the air collecting box is provided with a blowing hole.

[0009] Furthermore, a second rotating shaft is rotatably installed on one side of the drying cylinder and located below the inclined plate, one end of the second rotating shaft is located inside the drying cylinder and a mounting block is fixed thereto, an outer wall of the mounting block is provided with a plug-in groove, a plug-in rod is plugged into the inside of the plug-in groove, a spring is provided at the bottom of the plug-in rod, and the bottom end of the spring is fixed to the inner wall of the plug-in groove, one end of the plug-in rod is extended to the outside of the plug-in groove and a knocking block is fixed thereto, pulleys are fixed to one end of the second rotating shaft and one end of the first rotating shaft and located on one side of the drying cylinder, and a belt is provided between the outer walls of the two pulleys.

[0010] The technical effects achieved by this utility model are:

[0011] The practical electric drying machine dries the plastic particles falling onto the inclined plate by hot air blowing, and the particles fall to the bottom wall of the drying cylinder along the vibration of the inclined plate, and then the hot water in the heating box further dries the plastic particles, and the particles are pushed into the drying cylinder by the rotation of the spiral pushing blades. The machine has a simple structure, can continuously dry a large number of plastic particles, has a good drying effect, can adapt to the drying of large quantities of plastic particles, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0013] Figure 2 It is a side-view stereoscopic structural schematic diagram of the utility model;

[0014] Figure 3 It is a side view cutaway structural schematic diagram of the present utility model;

[0015] Figure 4 It is a schematic diagram of the enlarged structure of area A in this practical diagram.

[0016] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0017] 1. Drying cylinder; 2. Heating box; 3. Heating plate; 4. Serpentine tube; 5. Blowing pump; 6. Connecting pipe; 7. Air collecting box; 8. Blowing hole; 9. Inclined plate; 10. First discharge hole; 11. First rotating shaft; 12. Motor; 13. Spiral push blade; 14. Discharge pipe; 15. Feed pipe; 16. Second rotating shaft; 17. Mounting block; 18. Plug-in slot; 19. Plug-in rod; 20. Spring; 21. Knocking block; 22. Pulley; 23. Belt. DETAILED DESCRIPTION

[0018] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with the embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the present invention, and does not strictly limit the scope of protection specifically requested by the present invention.

[0019] like Figure 1-4 As shown, the electric drying machine comprises a drying cylinder 1, a first heating mechanism is arranged at the bottom of the drying cylinder 1, a second heating mechanism is arranged at the inner top wall of the drying cylinder 1, an inclined plate 9 is arranged at the inner side of the drying cylinder 1, a first discharge hole 10 is opened on the downward inclined side of the inclined plate 9, a first rotating shaft 11 is rotatably installed on the inner wall of the drying cylinder 1 and located below the inclined plate 9, a spiral pushing blade 13 is arranged on the outer wall of the first rotating shaft 11, a motor 12 is arranged at one side of the drying cylinder 1, an output shaft of the motor 12 is connected to one end of the first rotating shaft 11, a discharge pipe 14 is fixed through one side of the bottom of the drying cylinder 1, and a feeding pipe 15 is fixed through the top of the drying cylinder 1 and close to the upturned part of the inclined plate 9. The structure is simple and easy to operate, and the first heating mechanism and the second heating mechanism are combined to facilitate the continuous discharge of plastic particles. The particles are dried, and the drying effect is better, thereby improving the drying efficiency; the first heating mechanism includes a heating box 2 fixed at the bottom of the drying cylinder 1, a heating plate 3 fixed on the inner side of the heating box 2, and an adding pipe fixed through one side of the heating box 2, which is convenient for heating and drying the plastic particles falling to the bottom of the drying cylinder 1, which is more practical and complete; the second heating mechanism includes a serpentine tube 4 fixed inside the heating box 2, a blow pump 5 connected to the other end of the serpentine tube 4 is arranged on the outer wall of the heating box 2, and a connecting pipe 6 is connected to the air outlet of the blow pump 5, and an air collecting box 7 connected to the connecting pipe 6 is fixed on the inner top wall of the drying cylinder 1, and a blowing hole 8 is opened through the bottom of the air collecting box 7, which is convenient for blowing and drying the plastic particles on the inclined plate 9, further improving the drying effect and efficiency of the plastic particles;

[0020] like Figure 2 As shown, one end of the serpentine tube 4 extends to the outside of the heating box 2 and is provided with a filter screen to prevent external air dust from entering the drying cylinder 1, which is more practical;

[0021] like Figure 3-4As shown, a second rotating shaft 16 is rotatably mounted on one side of the drying cylinder 1 and located below the inclined plate 9. One end of the second rotating shaft 16 is located inside the drying cylinder 1 and fixed with a mounting block 17. The outer wall of the mounting block 17 is provided with a plug-in slot 18. A plug-in rod 19 is plugged into the inside of the plug-in slot 18. A spring 20 is provided at the bottom of the plug-in rod 19, and the bottom end of the spring 20 is fixed to the inner wall of the plug-in slot 18. A knocking block 21 is fixed at one end of the plug-in rod 19 and extends to the outside of the plug-in slot 18. The second rotating shaft 16 A pulley 22 is fixed to one end of the first rotating shaft 11 and located on one side of the drying cylinder 1. A belt 23 is arranged between the outer walls of the two pulleys 22. The structure is simple. The rotation of the first rotating shaft 11 drives the second rotating shaft 16 to rotate through the cooperation of the pulley 22 and the belt 23. The second rotating shaft 16 drives the mounting block 17 to rotate. The mounting block 17 drives the knocking block 21 to rotate through the plug-in rod 19. The knocking block 21 knocks the inclined plate 9, which facilitates the dispersion and falling of the plastic particles on the inclined plate 9, thereby improving the working efficiency.

[0022] like Figure 1-2 As shown, support legs are fixed on the four corners of the bottom of the heating box 2, which is convenient for stably supporting the equipment and improving the stability of the equipment operation.

[0023] The working principle of the utility model is as follows: when in use, plastic particles are added into the drying cylinder 1 from the feeding pipe 15, the plastic particles fall onto the inclined plate 9, the motor 12 is started, the motor 12 drives the spiral push blade 13 on the first rotating shaft 11 to rotate, cooperates with the upper pulley 22 and the belt 23, drives the second rotating shaft 16 to rotate, the second rotating shaft 16 drives the knocking block 21 on the mounting block 17 to rotate, the rotating knocking block 21 knocks the inclined plate 9, so that the plastic particles on the inclined plate 9 are dispersed and fall, and fall to the bottom of the drying cylinder 1, and the bottom of the drying cylinder 1 The plastic particles are discharged through the rotating spiral pushing blade 13 in cooperation with the discharge pipe 14, and at the same time, the heating plate 3 is started to heat the water in the heating box 2 and the bottom of the drying cylinder 1, so as to heat and dry the plastic particles at the bottom of the drying cylinder 1, and the blowing pump 5 is started to heat the air sucked into the serpentine tube 4 through the serpentine tube 4 in cooperation with the hot water in the heating box 2, and then blown onto the plastic on the inclined plate 9 through the blowing holes 8 on the air collecting box 7 for drying. The plastic particles can be double dried, the drying effect is good, and the drying efficiency is improved.

[0024] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. Electric drying machine, characterized by: The invention comprises a drying cylinder (1), wherein a first heating mechanism is arranged at the bottom of the drying cylinder (1), a second heating mechanism is arranged on the inner top wall of the drying cylinder (1), an inclined plate (9) is arranged on the inner side of the drying cylinder (1), a first material discharge hole (10) is opened on the downwardly inclined side of the inclined plate (9), a first rotating shaft (11) is rotatably mounted on the inner wall of the drying cylinder (1) and located below the inclined plate (9), a spiral pushing blade (13) is arranged on the outer wall of the first rotating shaft (11), a motor (12) is arranged on one side of the drying cylinder (1), an output shaft of the motor (12) is connected to one end of the first rotating shaft (11), a material discharge pipe (14) is fixedly passed through one side of the bottom of the drying cylinder (1), and a material feed pipe (15) is fixedly passed through the top of the drying cylinder (1) and close to the upturned part of the inclined plate (9).

2. The electric drying machine according to claim 1, characterized in that: The first heating mechanism comprises a heating box (2) fixed at the bottom of the drying cylinder (1), a heating plate (3) fixed inside the heating box (2), and an addition pipe fixed through one side of the heating box (2).

3. The electric drying machine according to claim 2, characterized in that: The second heating mechanism comprises a heating box (2) having a serpentine tube (4) fixed inside, the outer wall of the heating box (2) being provided with a blow pump (5) connected to the other end of the serpentine tube (4), the air outlet of the blow pump (5) being connected to a connecting tube (6), the inner top wall of the drying cylinder (1) being fixed with an air collecting box (7) connected to the connecting tube (6), and the bottom of the air collecting box (7) being provided with a blowing hole (8).

4. The electric drying machine according to claim 3, characterized in that: One end of the serpentine tube (4) extends to the outside of the heating box (2) and is provided with a filter screen.

5. The electric drying machine according to claim 1, characterized in that: A second rotating shaft (16) is rotatably mounted on one side of the drying cylinder (1) and located below the inclined plate (9); one end of the second rotating shaft (16) is located inside the drying cylinder (1) and is fixed with a mounting block (17); an outer wall of the mounting block (17) is provided with a plug-in slot (18); a plug-in rod (19) is plugged into the inside of the plug-in slot (18); a spring (20) is provided at the bottom of the plug-in rod (19); the bottom end of the spring (20) is fixed to the inner wall of the plug-in slot (18); a knocking block (21) is fixed at one end of the plug-in rod (19) and extends to the outside of the plug-in slot (18); a pulley (22) is fixed to one end of the second rotating shaft (16) and the first rotating shaft (11) and is located on one side of the drying cylinder (1); a belt (23) is provided between the outer walls of the two pulleys (22).

6. The electric drying machine according to claim 2, characterized in that: Support legs are fixed on the four corners of the bottom of the heating box (2).

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