Automatic circulation type hot air dryer

Abstract

The utility model provides an automatic circulation type hot air dryer, which belongs to the technical field of medicinal material processing equipment, aims to solve the problem that steam is not easy to discharge due to the fact that drying equipment in the prior art is semi-closed, and comprises a first conveyor belt conveyor and a second conveyor belt conveyor arranged at the bottom of the first conveyor belt conveyor, the material conveying direction of the first conveying belt conveyor is rightward, the material conveying direction of the second conveying belt conveyor is leftward, the right end of the second conveying belt conveyor can receive materials output by the first conveying belt conveyor, a rolling barrel is arranged on the upper portion of the first conveying belt conveyor, and a first motor is arranged on the side portion of the first conveying belt conveyor. The first motor is in transmission connection with the rolling cylinder, the rolling cylinder is provided with an inner cavity, and a plurality of through air holes are formed in the periphery of the rolling cylinder. The feeding mechanism can convey materials output by the second conveying belt conveyor to the upper portion of the left end of the first conveying belt conveyor. An air outlet of the air pump is communicated with the inner cavity; the electric heating device can heat air exhausted by the air pump.

Description

Technical Field

[0001] This utility model belongs to the technical field of medicinal material processing equipment, and more specifically, it relates to an automatic circulating hot air dryer. Background Technology

[0002] Hot air dryers utilize the principles of heat pumps and sensible heat exchange technology to provide high-temperature hot air, and are widely used in various industries. Hot air dryers heat air and circulate it into the drying chamber to achieve rapid drying of materials. This equipment has many advantages, such as energy saving, high efficiency, and wide applicability. It can be used not only for drying various industrial raw materials, chemical materials, pharmaceutical products, and food, but also widely used in printing, packaging, and other industries. Currently, a commonly used structure involves stirring the material through a rotating mixing drum to ensure uniform heating.

[0003] For example, a hot air circulating dryer with application number CN201510583694.0 relates to the field of mechanical equipment. It includes a dryer body, a suction fan, an oven, a thermometer, and a drawer. The inner wall of the dryer body has a sliding groove. The drawer is slidably connected inside the dryer body. The oven is located on the outer wall of the dryer body. An opening is provided between the dryer body and the oven. The suction fan is fixedly connected to the inner wall of the opening. The thermometer is fixedly connected to the oven. In this invention, the hot air circulating dryer has a drawer inside. After the material in the dryer is dried, it can be introduced into the drawer through the discharge port. The oven is fixedly connected to the dryer, where shoes, socks, and other items can be dried. The suction fan can draw hot air from the dryer body into the oven. The thermometer facilitates the monitoring of the temperature inside the oven.

[0004] Based on the search of the aforementioned patents and the findings of existing equipment, it was discovered that the existing drying equipment is semi-enclosed, which makes it difficult for moisture to escape.

[0005] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided an automatic circulating hot air dryer in order to achieve a more practical purpose. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides an automatic circulating hot air dryer to address the issue that existing drying equipment is semi-enclosed, making it difficult for moisture to escape.

[0007] The purpose and effect of this utility model of an automatic circulating hot air dryer are achieved by the following specific technical means:

[0008] An automatic circulating hot air dryer includes:

[0009] A first conveyor belt and a second conveyor belt located at the bottom of the first conveyor belt. The first conveyor belt has a material conveying direction to the right, and the second conveyor belt has a material conveying direction to the left. The right end of the second conveyor belt can receive the material output by the first conveyor belt. A roller press cylinder is provided on the upper part of the first conveyor belt. A motor is provided on the side of the first conveyor belt. The motor is connected to the roller press cylinder. The roller press cylinder has an inner cavity and multiple through air holes are provided on the outer periphery of the roller press cylinder.

[0010] The feeding mechanism can transport the material output from the second conveyor belt to the upper left end of the first conveyor belt;

[0011] An air pump, wherein the air outlet of the air pump is connected to the inner cavity;

[0012] An electric heating device that heats the gas discharged from an air pump.

[0013] Furthermore, it also includes an arc-shaped air guide plate, the inner circumferential surface of which is in close contact with the outer circumferential surface of the roller cylinder, the arc-shaped air guide plate is disposed on the upper part of the first conveyor belt, and an air outlet is provided at the lower part of the arc-shaped air guide plate.

[0014] Furthermore, the electric heating device includes a heating pipe, a plurality of electric heating tubes disposed within the heating pipe, an air inlet connected to one end of the heating pipe, and an air outlet connected to the side wall of the other end of the heating pipe.

[0015] Furthermore, the feeding mechanism includes an outer shell, a motor fixedly connected to the outer shell, a spiral pusher rod rotatably connected to the outer shell, a discharge port located on the upper side of the outer shell, a feed port located on the lower side of the outer shell, a discharge hopper located at the discharge port, and a feed hopper located at the feed port.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The technical solution of this utility model adopts a fully open drying structure, which makes it easy for moisture to evaporate and prevents steam from flowing back. At the same time, the long conveying distance of the first and second conveyor belts provides sufficient time for the material to evaporate moisture, and the material is fully turned over when it falls from the first conveyor belt to the second conveyor belt. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of an automatic circulating hot air dryer according to the present invention.

[0019] Figure 2 This is a partial cross-sectional three-dimensional structural diagram of the feeding mechanism of an automatic circulating hot air dryer according to this utility model.

[0020] Figure 3 This is a partial cross-sectional three-dimensional structural diagram of an automatic circulating hot air dryer of the present invention, comprising a roller press body, air holes, an arc-shaped air guide plate, an air outlet, an electric heating device, an air pump, and a motor assembly.

[0021] Figure 4 This is a utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0022] Figure 5 This is a three-dimensional structural diagram of the feeding mechanism of an automatic circulating hot air dryer according to this utility model.

[0023] Figure 6 This is a three-dimensional structural diagram of the arc-shaped air guide plate of an automatic circulating hot air dryer according to this utility model.

[0024] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0025] First conveyor belt 11, second conveyor belt 12, roller press body 13, air hole 130, arc-shaped air guide plate 14, air outlet 141, electric heating device 15, heating pipe 151, electric heating tube 152, air inlet 153, air outlet 154, air pump 16, motor one 17, feeding mechanism 18, outer shell 181, motor two 182, spiral push rod 183, discharge port 184, feed port 185, discharge hopper 186, feed hopper 187. Detailed Implementation

[0026] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0027] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship 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. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Example:

[0030] As attached Figure 1 To be continued Figure 5 As shown:

[0031] This utility model provides an automatic circulating hot air dryer, comprising:

[0032] A first conveyor belt 11 and a second conveyor belt 12 located at the bottom of the first conveyor belt 11. The first conveyor belt 11 conveys material to the right, and the second conveyor belt 12 conveys material to the left. The right end of the second conveyor belt 12 can receive the material output by the first conveyor belt 11. A roller press cylinder 13 is provided on the upper part of the first conveyor belt 11. A motor 17 is provided on the side of the first conveyor belt 11. The motor 17 is connected to the roller press cylinder 13 in a drive. The roller press cylinder 13 is provided with an inner cavity, and multiple through air holes 130 are provided on the outer periphery of the roller press cylinder 13.

[0033] The feeding mechanism 18 can transport the material output from the second conveyor belt 12 to the upper left end of the first conveyor belt 11;

[0034] Air pump 16, the air outlet of air pump 16 is connected to the inner cavity;

[0035] The electric heating device 15 is capable of heating the gas discharged from the air pump 16.

[0036] In this embodiment, when the first conveyor belt 11 conveys the material to the right, the motor 17 drives the roller pressing cylinder 13 to rotate and press the material, preventing material accumulation. Simultaneously, the air pump 16 blows air into the inner cavity of the roller pressing cylinder 13, and the electric heating device 15 heats the gas, which is then blown out from the air hole 130 onto the surface of the material to increase its temperature. The material is then output from the right end of the first conveyor belt 11 and falls onto the right end of the second conveyor belt 12. It is then conveyed from the right end of the second conveyor belt 12 to the left and fed into the feeding mechanism 18 from the left end of the second conveyor belt 12. The feeding mechanism 18 then outputs the material back to the first conveyor belt 11, thus forming a circulating drying process. The lengths of the first conveyor belt 11 and the second conveyor belt 12 can be designed according to specific circumstances.

[0037] It also includes an arc-shaped air guide plate 14, the inner circumferential surface of the arc-shaped air guide plate 14 is in close contact with the outer circumferential surface of the roller pressing cylinder 13, the arc-shaped air guide plate 14 is set on the upper part of the first conveyor belt 11, and the lower part of the arc-shaped air guide plate 14 is provided with an air outlet 141.

[0038] The arc-shaped air guide plate 14 guides the hot air discharged from the roller press cylinder 13. By setting an air outlet 141 at the lower part of the arc-shaped air guide plate 14, hot air is sprayed out from the lower part of the arc-shaped air guide plate 14 and directly injected into the material to exchange heat with the material. The high-pressure gas is injected into the material through the air hole 130.

[0039] The electric heating device 15 includes a heating pipe 151, a plurality of electric heating tubes 152 disposed in the heating pipe 151, an air inlet 153 connected to one end of the heating pipe 151, and an air outlet 154 connected to the side wall of the other end of the heating pipe 151.

[0040] The connection between the heating pipes 151 and the heating pipes 151 is a sealed connection. When the gas passes through the heating pipes 151, it comes into contact with the heating pipes 151, thereby generating heat exchange, the gas heats up and is discharged from the gas outlet 154.

[0041] The feeding mechanism 18 includes an outer shell 181, a motor 182 fixedly connected to the outer shell 181, a spiral pusher 183 rotatably connected inside the outer shell 181, a discharge port 184 located on the upper side of the outer shell 181, a feed port 185 located on the lower side of the outer shell 181, a discharge hopper 186 located on the discharge port 184, and a feed hopper 187 located on the feed port 185.

[0042] The material enters through the feed inlet 185, and the rotation of the screw pusher 183 drives the material to rise and be discharged from the discharge hopper 186.

[0043] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An automatic circulating type hot-air drier, characterized by comprising: The utility model relates to a kind of automatic circulation hot air dryer, including: First conveyor (11) and the second conveyor (12) of being arranged at the bottom of first conveyor (11), the material conveying direction of the first conveyor (11) is right, the material conveying direction of the second conveyor (12) is left, the right end of the second conveyor (12) can catch the material output by first conveyor (11), roller cylinder (13) is arranged on the upper portion of the first conveyor (11), motor one (17) is arranged on the side of the first conveyor (11), motor one (17) is drivingly connected with roller cylinder (13), the roller cylinder (13) is provided with inner cavity, a plurality of gas holes (130) are arranged on the outer periphery of the roller cylinder (13) and penetrate through; Feeding mechanism (18) can convey the material output by the second conveyor (12) to the left end upper portion of the first conveyor (11); Air pump (16), the air outlet of air pump (16) is communicated with inner cavity; Electric heating device (15), electric heating device (15) can heat the gas discharged by air pump (16).

2. The automatic circulation hot air dryer according to claim 1, further comprising: Arc-shaped air deflector (14), the inner circumferential surface of arc-shaped air deflector (14) is tightly attached to the outer circumferential surface of roller cylinder (13), arc-shaped air deflector (14) is arranged on the upper portion of the first conveyor (11), and air outlet slot (141) is arranged on the lower portion of arc-shaped air deflector (14).

3. The automatic circulating hot-air dryer according to claim 1, wherein: The electric heating device (15) includes a heating pipe (151), a plurality of electric heating tubes (152) arranged in the heating pipe (151), an air inlet (153) communicated with one end of the heating pipe (151), and an air outlet (154) communicated with the side wall of the other end of the heating pipe (151).

4. The automatic circulating hot-air dryer according to claim 1, wherein: The feeding mechanism (18) is provided with an outer shell (181), a motor two (182) fixedly connected to the outer shell (181), a spiral pushing rod (183) rotatably connected in the outer shell (181), an outlet (184) arranged on the upper side of the outer shell (181), an inlet (185) arranged on the lower side of the outer shell (181), an outlet hopper (186) arranged on the outlet (184), and an inlet hopper (187) arranged on the inlet (185).

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