Material drying mechanism

Abstract

This utility model discloses a material drying mechanism. The drying chamber comprises, from top to bottom, a preheating chamber, a drying chamber, and a material preparation chamber. A first material plate is fixedly installed between the preheating chamber and the drying chamber. A second material plate is fixedly installed between the drying chamber and the material preparation chamber. The first material plate has a first vent hole and a first material passage hole. The second material plate has a second vent hole and a second material passage hole. The material drying mechanism also includes a first driving component, a first connecting shaft, and a first hollow shaft. The first connecting shaft is provided with a first rotating baffle. The first hollow shaft is provided with rotating blades. The first driving component connects the first connecting shaft and the first hollow shaft. The hollow shaft also forms a third vent hole. The material drying mechanism further includes a second driving component, a second connecting shaft, and a second rotating baffle. The material preparation chamber is connected to a hot air duct, and hot air can enter the drying chamber through the second and third vent holes. The technical solution of this utility model aims to improve the material drying efficiency.

Description

Technical Field

[0001] This utility model relates to the field of plastic granule drying technology, and in particular to a material drying mechanism. Background Technology

[0002] A material drying unit is a device that removes moisture or other solvents from materials through thermal action. Its core purpose is to reduce the moisture content of materials as much as possible while ensuring material quality through an efficient heat and mass transfer process, so as to meet the requirements of subsequent processing.

[0003] In existing technologies, common drying equipment such as box dryers or single-layer conveyor belt dryers usually have a relatively simple structure, which results in a relatively simple contact angle between hot air and materials. This can easily lead to uneven heating of materials, affecting the quality of products to be processed and resulting in low drying efficiency. Secondly, the hot air discharged from the drying area usually still carries a large amount of residual heat before being directly discharged, resulting in energy waste. Utility Model Content

[0004] The purpose of this invention is to provide a material drying mechanism that aims to improve material drying efficiency.

[0005] To achieve this objective, the present invention adopts the following technical solution: A material drying mechanism includes a drying chamber; the drying chamber is formed from top to bottom by a preheating chamber, a drying chamber, and a material preparation chamber; a first material plate is fixedly installed between the preheating chamber and the drying chamber; a second material plate is fixedly installed between the drying chamber and the material preparation chamber. The first material plate has a first vent hole and a first material passage hole; the second material plate has a second vent hole and a second material passage hole; The material drying mechanism further includes a first driving component, a first connecting shaft, and a first hollow shaft; The first connecting shaft is provided with a first rotating baffle. Rotating the first rotating baffle can close or open the first material passage hole, allowing the material to pass through the first material plate. The first hollow shaft is provided with rotating blades, which are located in the drying chamber and are used to tumble the material; the first driving member connects the first connecting shaft and the first hollow shaft and drives the first connecting shaft and the first hollow shaft to rotate; the hollow shaft also forms a third vent hole; The material drying mechanism also includes a second driving component, a second connecting shaft, and a second rotating baffle. The second driving component is connected to the second coupling shaft to drive the second rotating baffle to rotate. The rotating baffle cooperates with the second material passage hole to close or open the second material passage hole, allowing the material to pass through the second material plate. The material preparation chamber is connected to a hot air duct, and the hot air can enter the drying chamber through the second vent and the third vent. The hot air in the drying chamber can enter the preheating chamber through the first vent.

[0006] In one embodiment, the first driving element and the second driving element are motors.

[0007] In one embodiment, the preheating chamber has an exhaust port and a feed port; the exhaust port is used to discharge the hot and humid air from the drying chamber; the feed port is used to feed in the material to be dried.

[0008] In one embodiment, the first rotating baffle also has a fourth vent hole, and the inner diameter of the first vent hole, the second vent hole, the third vent hole and the fourth vent hole is smaller than that of the material.

[0009] In one embodiment, the preparation chamber is funnel-shaped and is used for temporary storage of dried materials.

[0010] In one embodiment, the second vent hole on the second material plate is fan-shaped.

[0011] Compared with the prior art, the present invention has the following beneficial effects: This utility model's technical solution involves setting up a preheating chamber, a drying chamber, and a material preparation chamber from top to bottom, and using a first material plate with vent holes and a material passage hole to separate the two material plates. This allows hot air entering from the material preparation chamber to enter the drying chamber from multiple angles through the second vent hole and the third vent hole of the first hollow shaft for active drying of the material. Then, it enters the preheating chamber through the first vent hole to preheat the upper layer of cold material. This structure effectively utilizes waste heat and overcomes the defect of serious heat energy waste. At the same time, the rotating blades in the drying chamber, driven by the first driving component, can continuously turn the material. Combined with the effect of multiple hot air streams, it solves the problems of uneven drying and low efficiency caused by static material or single heating, thereby achieving a significant improvement in the overall material drying efficiency and uniformity. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0014] Figure 1 This is a schematic diagram of the external structure of an embodiment of the material drying mechanism of this utility model; Figure 2 This is a schematic diagram of the internal structure of an embodiment of the material drying mechanism of this utility model; Figure 3 This is a partial structural schematic diagram of an embodiment of the material drying mechanism of this utility model; Illustrations: 100, Material drying mechanism; 110, Drying chamber; 110a, Preheating chamber; 110b, Drying chamber; 110c, Material preparation chamber; 111, First material plate; 111a, First vent; 111b, First material passage hole; 112, Second material plate; 112a, Second vent; 112b, Second material passage hole; 113, Exhaust hole; 114, Feed hole; 121. First driving component; 122. First coupling shaft; 123. First rotating baffle; 123a. Fourth vent hole; 124. First hollow shaft; 124a. Third vent hole; 125. Rotating blade; 131. Second driving component; 132. Second coupling shaft; 133. Second rotating baffle; 140. Hot air duct. Detailed Implementation

[0015] To make the technical objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0016] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component centrally located at the same time.

[0017] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0018] This utility model embodiment provides a material drying mechanism 100.

[0019] Please see Figures 1 to 3 The material drying mechanism 100 includes a drying chamber 110; the drying chamber 110 is formed from top to bottom as a preheating chamber 110a, a drying chamber 110b, and a material preparation chamber 110c; a first material plate 111 is fixedly installed between the preheating chamber 110a and the drying chamber 110b; a second material plate 112 is fixedly installed between the drying chamber 110b and the material preparation chamber 110c. The first material plate 111 has a first vent hole 111a and a first material passage hole 111b; the second material plate 112 has a second vent hole 112a and a second material passage hole 112b. The material drying mechanism 100 also includes a first driving component 121, a first connecting shaft 122, and a first hollow shaft 124; The first connecting shaft 122 is provided with a first rotating baffle 123. Rotating the first rotating baffle 123 can close or open the first material passage hole 111b, allowing the material to pass through the first material plate 111. The first hollow shaft 124 is provided with rotating blades 125, which are located in the drying chamber 110b and are used to agitate the material. The first driving member 121 connects the first connecting shaft 122 and the first hollow shaft 124 and drives the first connecting shaft 122 and the first hollow shaft 124 to rotate. The hollow shaft also has a third vent hole 124a. The material drying mechanism 100 also includes a second driving component 131, a second connecting shaft 132, and a second rotating baffle 133; The second driving member 131 is connected to the second coupling shaft 132 to drive the second rotating baffle 133 to rotate. The rotating baffle cooperates with the second material passage hole 112b to close or open the second material passage hole 112b, so that the material passes through the second material plate 112. The material preparation chamber 110c is connected to the hot air duct 140. The hot air can enter the drying chamber 110b through the second vent 112a and the third vent 124a. The hot air in the drying chamber 110b can enter the preheating chamber 110a through the first vent 111a.

[0020] Specifically, the drying chamber 110 can be a vertically placed cylindrical container, whose interior is divided into three functional chambers by a first material plate 111 and a second material plate 112. Among them, the preheating chamber 110a is mainly used to receive and preheat wet materials at room temperature or low temperature; the drying chamber 110b is used to perform dehydration; and the preparation chamber 110c is used to collect and temporarily store the dried materials in preparation for discharge or use.

[0021] Furthermore, the first material plate 111 has a first vent 111a and a first material passage 111b; the second material plate 112 has a second vent 112a and a second material passage 112b; wherein the first vent 111a and the second vent 112a are tiny channels that penetrate the bodies of the first material plate 111 and the second material plate 112 respectively, and their apertures are designed to allow hot air to pass through but prevent material particles from falling off. These vents can be uniformly distributed in a matrix, or they can be radially arranged or arranged in other regular patterns to ensure that hot air penetrates the material layer on the material plate uniformly. The first material passage 111b and the second material passage 112b are sized to allow single particles or clumps of material to pass through in a controlled manner.

[0022] Furthermore, the first driving member 121 is the power source, and its specific implementation can be a servo motor, stepper motor, hydraulic motor, or pneumatic motor, etc. The first coupling 122 is a transmission component used to transmit the power of the first driving member 121 to the first rotating baffle 123. It can be a solid shaft directly connected to the output shaft of the first driving member 121. The first rotating baffle 123 is a plate-shaped component, fixedly mounted on the first coupling 122, and its shape and size are designed to completely cover or allow the first material passage hole 111b. When the first driving member 121 drives the first rotating baffle 123 to rotate to a position covering the first material passage hole 111b through the first coupling 122, the material is blocked on the first material plate 111; when the rotating baffle opens, the first material passage hole 111b opens, and the material falls into the drying chamber 110b below.

[0023] Specifically, the first driving element 121 simultaneously drives two components: the first connecting shaft 122 and the first hollow shaft 124. This can be achieved through various transmission structures. For example, the output shaft of the first driving element 121 can be connected to both the first connecting shaft 122 and the first hollow shaft 124 via a reducer or transfer case; or, the first driving element 121 can directly drive the first connecting shaft 122, which in turn drives the first hollow shaft 124, thereby achieving synchronous or asynchronous rotation of the two. The first hollow shaft 124 is a hollow, tubular shaft that passes through the drying chamber 110b. Rotating blades 125 are fixedly installed on the outer wall of the first hollow shaft 124 and can be in the form of spiral blades, paddle blades, etc. When they rotate with the shaft, they can stir, lift, and tumble the material in the drying chamber 110b, ensuring that the material particles are in full contact with the hot air. The third vent 124a is formed on the tube wall of the first hollow shaft 124, and its function is to connect the internal cavity of the first hollow shaft 124 with the drying chamber 110b. The lower end of the first hollow shaft 124 can be connected to hot air, so that hot air can not only enter from below the material plate, but also diffuse directly from the rotating shaft located inside the material pile, realizing multi-angle and simultaneous internal and external drying.

[0024] Furthermore, the second drive component 131 is used to control the discharge of material from the second material plate 112; the second drive component 131 can also be a motor or a manual rotary drive, etc. The second coupling 132 transmits the power of the second drive component 131 to the second rotating baffle 133. By controlling the rotation of the second drive component 131, the timing and rate of discharge of dried material from the drying chamber 110b to the preparation chamber 110c can be precisely controlled, achieving batch or continuous discharge.

[0025] Furthermore, the hot air duct 140 is a duct connected to an external heat source, and it is connected to the bottom or side wall of the preparation chamber 110c. Dry, high-temperature hot air is first sent into the preparation chamber 110c, and then splits into two paths: one path penetrates upwards through the second vent 112a on the second material plate 112, entering the drying chamber 110b from bottom to top; the other path enters the interior of the first hollow shaft 124 and is sprayed laterally or radially into the material in the drying chamber 110b through the third vent 124a on its wall. After heat exchange is completed in the drying chamber 110b, the hot air, with its reduced temperature and increased humidity, continues to flow upwards, penetrating the first vent 111a on the first material plate 111, and enters the preheating chamber 110a to preheat the newly added cold material, finally exiting from the exhaust port of the preheating chamber 110a. This path constitutes a system for the cascade utilization of thermal energy.

[0026] It is understood that the technical solution of this embodiment, by setting up a preheating chamber 110a, a drying chamber 110b, and a material preparation chamber 110c from top to bottom, and using a first material plate 111 with vent holes and a material passage hole to separate the materials, allows the hot air entering from the material preparation chamber 110c to enter the drying chamber 110b at multiple angles through the second vent hole 112a and the third vent hole 124a of the first hollow shaft 124 to actively dry the material. Then, it enters the preheating chamber 110a through the first vent hole 111a to preheat the upper cold material. This structure effectively utilizes waste heat and overcomes the defect of serious heat energy waste. At the same time, the rotating blades 125 set in the drying chamber 110b driven by the first driving member 121 can continuously turn the material. Combined with the effect of multiple hot air, it solves the problem of uneven drying and low efficiency caused by the material being left to stand still or being heated only once, thereby achieving a significant improvement in the overall material drying efficiency and uniformity.

[0027] Optionally, the first driving component 121 and the second driving component 131 are motors.

[0028] Optionally, the preheating chamber 110a has an exhaust port 113 and a feed port 114; the exhaust port 113 is used to exhaust the hot and humid air from the drying chamber 110; the feed port 114 is used to feed in the material to be dried.

[0029] Optionally, the first rotating baffle 123 also has a fourth vent 123a, and the inner diameter of the first vent 111a, the second vent 112a, the third vent 124a and the fourth vent 123a is smaller than that of the material.

[0030] Optionally, the material preparation chamber 110c is funnel-shaped and is used for temporary storage of dried materials.

[0031] Optionally, the second vent hole 112a on the second material plate 112 is fan-shaped, and multiple fan-shaped holes are arranged regularly.

[0032] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A material drying mechanism, characterized in that, It includes a drying chamber; the drying chamber is formed from top to bottom as a preheating chamber, a drying chamber, and a material preparation chamber; a first material plate is fixedly installed between the preheating chamber and the drying chamber; a second material plate is fixedly installed between the drying chamber and the material preparation chamber; The first material plate has a first vent hole and a first material passage hole; the second material plate has a second vent hole and a second material passage hole; The material drying mechanism further includes a first driving component, a first connecting shaft, and a first hollow shaft; The first connecting shaft is provided with a first rotating baffle. Rotating the first rotating baffle can close or open the first material passage hole, allowing the material to pass through the first material plate. The first hollow shaft is provided with rotating blades, which are located in the drying chamber and are used to tumble the material; the first driving member connects the first connecting shaft and the first hollow shaft and drives the first connecting shaft and the first hollow shaft to rotate; the hollow shaft also forms a third vent hole; The material drying mechanism also includes a second driving component, a second connecting shaft, and a second rotating baffle. The second driving component is connected to the second coupling shaft to drive the second rotating baffle to rotate. The rotating baffle cooperates with the second material passage hole to close or open the second material passage hole, allowing the material to pass through the second material plate. The material preparation chamber is connected to a hot air duct, and the hot air can enter the drying chamber through the second vent and the third vent. The hot air in the drying chamber can enter the preheating chamber through the first vent.

2. The material drying mechanism as described in claim 1, characterized in that, The first driving component and the second driving component are motors.

3. The material drying mechanism as described in claim 1, characterized in that, The preheating chamber has an exhaust port and a feed port; the exhaust port is used to discharge the hot and humid air from the drying chamber; the feed port is used to feed in the material to be dried.

4. The material drying mechanism as described in claim 1, characterized in that, The first rotating baffle also has a fourth vent hole, and the inner diameter of the first vent hole, the second vent hole, the third vent hole and the fourth vent hole is smaller than that of the material.

5. The material drying mechanism as described in claim 1, characterized in that, The material preparation chamber is funnel-shaped and is used for temporary storage of dried materials.

6. The material drying mechanism as described in claim 1, characterized in that, The second vent hole on the second material plate is fan-shaped.

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