Plastic drying machine for heat treatment

Abstract

The utility model discloses a heat treatment plastic drying machine, which relates to the technical field of plastic drying and comprises a drying machine shell, a drying cavity is arranged at the top of an inner cavity of the drying machine shell; the rotating shaft is rotationally connected to the middle of the drying cavity, material stirring plates are fixedly connected to the outer wall of the drying cavity at intervals, screening holes are formed in the outer walls of the material stirring plates in a spreading mode, and the hole diameters of the screening holes in the multiple material stirring plates are gradually reduced in the radial direction; and the heating assembly is arranged at the bottom of the drying cavity. According to the plastic particle drying machine, the rotating shaft and the multiple material stirring plates are arranged in the drying cavity of the drying machine shell, and the screening holes with the hole diameters gradually reduced are sequentially formed in the multiple material stirring plates in a matched mode, so that plastic particles in the drying cavity can be stirred while the rotating shaft drives the material stirring plates to rotate, and the heating uniformity of the plastic particles is improved; and meanwhile, the purpose of screening the plastic particles can be achieved, the dried plastic particles can be sorted and discharged conveniently, and therefore the using functionality of the drying machine is improved.

Description

Technical Field

[0001] This utility model relates to the field of plastic drying technology, and in particular to a heat-treated plastic dryer. Background Technology

[0002] Dryers use heating to vaporize and release moisture from materials, thereby obtaining solid materials with a specified moisture content. Currently, in plastic processing, plastic granules need to be dried using dryers to meet further processing requirements.

[0003] In the existing technology, most dryers mainly use a stirring shaft to stir and heat the plastic in the heating container to make the plastic particles heat evenly. However, this stirring method has a single function and can only help improve the uniformity of heating of plastic particles, which is difficult to meet the needs of multi-functional use. Therefore, a heat treatment plastic dryer is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a heat-treated plastic dryer to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat-treated plastic dryer, comprising:

[0006] The dryer housing has a drying chamber at the top of its inner cavity;

[0007] A rotating shaft is rotatably connected to the middle of the drying chamber. A material feeding plate is fixedly connected to the outer wall of the drying chamber at intervals. Screening holes are opened all over the outer wall of the material feeding plate. The diameter of the screening holes on the multiple material feeding plates gradually decreases in the radial direction.

[0008] A heating component is provided at the bottom of the drying chamber and is used to heat the plastic particles inside the drying chamber.

[0009] Preferably, a heat-conducting plate is fixedly connected inside the dryer shell, and the drying chamber is disc-shaped and located between the heat-conducting plate and the top of the inner cavity of the dryer shell.

[0010] Preferably, a feed hopper is fixedly connected to the top of the side wall of the dryer shell, and a conical through groove communicating with the inside of the drying chamber is opened at the top of the feed hopper.

[0011] Preferably, a discharge pipe connected to the drying chamber is fixedly connected to the middle of the heat-conducting plate, and a switch valve is fixedly installed at the end of the discharge pipe. A receiving cavity connected to the discharge pipe is opened at the bottom front of the dryer shell.

[0012] Preferably, the heating assembly includes an electric heating base, which is fitted onto the side of the heat-conducting sheet away from the drying chamber, and the outer wall of the electric heating base is fixedly connected to the inner wall of the dryer housing.

[0013] Preferably, the top of the dryer shell is provided with a vent hole that communicates with the drying chamber, a protective net is fixedly connected to the bottom of the vent hole, and a cover is detachably connected to the top of the vent hole.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] This invention features a rotating shaft and multiple feeding plates within the drying chamber of the dryer's outer shell. The feeding plates are fitted with progressively smaller sieve holes. This allows the rotating shaft to drive the feeding plates, simultaneously agitating the plastic granules within the drying chamber, improving the uniformity of heating, and also sieving the plastic granules. This facilitates the sorting and feeding of the dried plastic granules, thereby increasing the functionality of the dryer. 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 front cross-sectional view of the outer shell of the dryer of this utility model.

[0018] Figure 3 This utility model Figure 2 A magnified schematic diagram of the structure at point A.

[0019] Figure 4 This is a three-dimensional structural diagram of the material feeding plate of this utility model.

[0020] In the diagram: 100, Dryer outer shell; 101, Heat-conducting plate; 102, Drying chamber; 103, Rotating shaft; 104, Feeding plate; 105, Electric heating base; 106, Discharge pipe; 107, Switch valve; 108, Material receiving cavity; 109, Vent hole; 110, Protective net; 111, Shielding cover; 112, Screening hole; 113, Feed hopper; 114, Conical through groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] This utility model provides, for example Figures 1-4 The heat-treated plastic dryer shown includes a dryer housing 100, a rotating shaft 103, and a heating assembly. A drying chamber 102 is located at the top of the inner cavity of the dryer housing 100. The rotating shaft 103 is rotatably connected to the middle of the drying chamber 102. Material guide plates 104 are fixedly connected to the outer wall of the drying chamber 102 at intervals. Screening holes 112 are distributed throughout the outer wall of the material guide plates 104. The diameter of the screening holes 112 on the multiple material guide plates 104 gradually decreases radially. In a preferred embodiment, there are three material guide plates 104 arranged in an equally spaced circular array. The screening holes 112 on the outer wall of the three material guide plates 104 gradually decrease radially. Thus, an external drive unit (gear motor or stepper motor) can drive the material guide plates 104 within the drying chamber 102 via the rotating shaft 103. When rotating, the plastic particles inside the drying chamber 102 move. As the plastic particles roll on the surface of the feeding plate 104, they are screened through the screening holes 112 to separate plastic particles of the same diameter. This allows plastic particles of different diameters to be sorted between adjacent feeding plates 104. The rotation of the feeding plate 104 also moves the plastic particles, ensuring that the plastic particles are heated evenly within the drying chamber 102. This improves the drying quality of the plastic particles while achieving sorting, making the dryer more suitable for the application requirements. The heating component is located at the bottom of the drying chamber 102 and is used to heat the plastic particles inside the drying chamber 102. The heating component provides the necessary heat for drying the plastic particles inside the drying chamber 102.

[0023] The heating assembly includes an electric heating base 105. A heat-conducting plate 101 is fixedly connected inside the dryer housing 100. The drying chamber 102 is disc-shaped and located between the heat-conducting plate 101 and the top of the inner cavity of the dryer housing 100. The heat-conducting plate 101 not only seals the drying chamber 102 but also works with the electric heating base 105 to improve the efficiency of heat transfer. The electric heating base 105 is fitted to the side of the heat-conducting plate 101 away from the drying chamber 102. The outer wall of the electric heating base 105 is fixedly connected to the inner wall of the dryer housing 100. Electrical energy can be converted into heat energy to heat the drying chamber 102 through the heating resistance wire or electric heating tube installed on the electric heating base 105.

[0024] Furthermore, a feed hopper 113 is fixedly connected to the top of the side wall of the dryer housing 100. The top of the feed hopper 113 is provided with a conical through groove 114 that communicates with the inside of the drying chamber 102. The feed hopper 113, together with the conical through groove 114, facilitates the feeding of plastic granules from the outside of the dryer housing 100.

[0025] The heat-conducting plate 101 is fixedly connected to the middle of the discharge pipe 106, which is connected to the drying chamber 102. The end of the discharge pipe 106 is fixedly installed with a switch valve 107. The bottom front of the dryer shell 100 is provided with a receiving cavity 108, which is connected to the discharge pipe 106. The receiving cavity 108 is provided to facilitate the placement of a collection container below the discharge pipe 106. The opening and closing of the discharge pipe 106 is controlled by the switch valve 107. When two adjacent material feeding plates 104 in the drying chamber 102 rotate to the positions above the discharge pipe 106, the same group of plastic particles between the two adjacent material feeding plates 104 can be discharged, thereby satisfying the independent discharge of plastic particles after screening, so as to facilitate subsequent classification and collection.

[0026] In addition, the top of the dryer housing 100 is provided with a vent 109 that communicates with the drying chamber 102. A protective net 110 is fixedly connected to the bottom of the vent 109, and a cover 111 is detachably connected to the top of the vent 109. The vent 109, together with the protective net 110, not only meets the needs of the gas discharge in the drying chamber 102, but also blocks and protects the plastic particles in the drying chamber 102, preventing the plastic particles from leaking out of the vent 109 and increasing safety. In addition, the detachable cover 111 installed on the top of the vent 109 can cover the vent 109. When the dryer is not in use, the cover 111 can be installed at the position of the vent 109 to cover it, thereby avoiding the disadvantage of external dust entering the drying chamber 102 and causing pollution.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heat-treated plastic dryer, characterized in that, include: A dryer housing (100) has a drying chamber (102) at the top of its inner cavity; A rotating shaft (103) is rotatably connected to the middle of the drying chamber (102). The outer wall of the drying chamber (102) is fixedly connected with material feeding plates (104) at intervals. The outer wall of the material feeding plates (104) is covered with screening holes (112). The diameter of the screening holes (112) on the multiple material feeding plates (104) gradually decreases in the radial direction. A heating component is provided at the bottom of the drying chamber (102) and is used to heat the plastic particles inside the drying chamber (102).

2. The heat-treated plastic dryer according to claim 1, characterized in that, A heat-conducting plate (101) is fixedly connected inside the dryer housing (100), and the drying chamber (102) is disc-shaped and located between the heat-conducting plate (101) and the top of the inner cavity of the dryer housing (100).

3. The heat-treated plastic dryer according to claim 2, characterized in that, A feed hopper (113) is fixedly connected to the top of the side wall of the dryer shell (100), and a conical through groove (114) communicating with the inside of the drying chamber (102) is opened at the top of the feed hopper (113).

4. A heat-treated plastic dryer according to claim 3, characterized in that, The heat-conducting plate (101) is fixedly connected to the middle of the discharge pipe (106) which is connected to the drying chamber (102). The end of the discharge pipe (106) is fixedly installed with a switch valve (107). The bottom front of the dryer shell (100) is provided with a receiving cavity (108) which is connected to the discharge pipe (106).

5. A heat-treated plastic dryer according to claim 4, characterized in that, The heating assembly includes an electric heating base (105), which is attached to the side of the heat-conducting plate (101) away from the drying chamber (102). The outer wall of the electric heating base (105) is fixedly connected to the inner wall of the dryer shell (100).

6. A heat-treated plastic dryer according to claim 5, characterized in that, The top of the dryer housing (100) is provided with a vent (109) that communicates with the drying chamber (102). A protective net (110) is fixedly connected to the bottom of the vent (109), and a cover (111) is detachably connected to the top of the vent (109).

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