Device for drying powder and particle materials at low temperature

Abstract

The utility model discloses a low-temperature drying device for powder and particle materials, and relates to the technical field of drying. The drying device comprises a drying cylinder, a top cover is arranged on the top face of the drying cylinder, a discharging pipe is fixedly connected to the bottom face of the drying cylinder in an inserted mode, an opening and closing control assembly used for controlling the top cover to rotate is arranged on the surface of the drying cylinder, and a low-temperature drying assembly used for drying materials is arranged on the surface of the drying cylinder. The surface of the top cover is provided with a spraying assembly used for spraying a cleaning medium into the drying cylinder, the surface of the drying cylinder is further provided with a material cleaning assembly used for cleaning the inner wall of the drying cylinder, and the opening and closing control assembly comprises a first supporting frame; during use, the effect that powder and particle materials can be rapidly dried at low temperature is achieved, the device can be automatically cleaned after drying is completed, the situation that the next batch of materials are polluted by material residues is avoided, and therefore the material quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of drying, in particular to a device for low-temperature drying of powder and granular materials. Background Art

[0002] A drying device, also known as a dryer or drier, is a piece of equipment used for drying. Some materials are sensitive to high temperatures, and high-temperature drying may cause structural changes, color changes, or chemical changes in the materials, affecting their quality and functionality. Low-temperature drying can remove moisture while minimizing the impact on material quality. Some materials are susceptible to thermal damage at high temperatures, including denaturation, oxidation, and decomposition. Low-temperature drying can reduce the likelihood of these adverse reactions, thereby preserving the original properties and activity of the material.

[0003] A Chinese patent document with authorization publication number CN212152051U discloses a drying device comprising: a cylinder with a feed inlet and a discharge outlet, through which material enters the cylinder and is discharged; and a screw, at least partially rotatably disposed within the cylinder, for conveying material from the feed inlet to the discharge outlet. The screw has air holes disposed along its axial direction. However, the aforementioned technical solution still suffers from the following drawbacks: when drying powders and granular materials, the prior art easily leaves residual powders and granular materials inside the device, making it difficult to quickly clean the interior. Subsequent drying of different materials can result in mixing of the two batches, leading to material contamination.

[0004] Therefore, a device for low-temperature drying of powder and granular materials is proposed. Utility Model Content

[0005] The purpose of the present invention is to solve the problems mentioned in the above background technology, and to provide a device for low-temperature drying of powder and granular materials.

[0006] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0007] A device for low-temperature drying of powder and granular materials, comprising a drying cylinder, a top cover being provided on the top surface of the drying cylinder, a feed pipe being fixedly connected to the bottom surface of the drying cylinder, an opening and closing control component for controlling the rotation of the top cover being provided on the surface of the drying cylinder, a low-temperature drying component for drying the material being provided on the surface of the drying cylinder, a spray component for spraying a cleaning medium into the interior of the drying cylinder being provided on the surface of the drying cylinder, and a material cleaning component for cleaning the inner wall of the drying cylinder being further provided on the surface of the drying cylinder.

[0008] Furthermore, the opening and closing control assembly includes a first support frame, and the first support frame is fixedly connected to the surface of the drying cylinder. The surface of the first support frame is rotatably connected to a first electric push rod, the telescopic end of the first electric push rod is hinged to a rotating rod, and the end of the rotating rod is hinged to the top cover.

[0009] Furthermore, the low-temperature drying component includes a heating wire, and the heating wire is fixedly connected to the bottom surface of the top cover. A vacuum system is provided on the top of the top cover. A motor is fixedly installed on the bottom surface of the drying cylinder. The output end of the motor is fixedly connected to a rotating shaft, and the surface of the rotating shaft is fixedly connected to a spiral blade.

[0010] Furthermore, the spray assembly includes a water inlet pipe, the end of the water inlet pipe is fixedly connected to an annular pipe, and the annular pipe is fixedly installed on the top surface of the top cover, and the bottom of the annular pipe is fixedly installed with a nozzle.

[0011] Furthermore, the material cleaning assembly includes a second support frame, and the second support frame is fixedly connected to the drying cylinder, a second electric push rod is fixedly installed on the surface of the second support frame, the telescopic end of the second electric push rod is fixedly connected to a connecting rod, a slide groove is opened through the surface of the second support frame, and the inner wall of the slide groove is slidably connected to the surface of the connecting rod, the end of the connecting rod is fixedly connected to a ring plate, the surface of the ring plate is fixedly connected to a rubber strip, and the surface of the rubber strip is slidably connected to the inner wall of the drying cylinder.

[0012] Furthermore, there are multiple nozzles, and the multiple nozzles are distributed in an annular array at the bottom of the annular tube.

[0013] The beneficial effects of the utility model are as follows:

[0014] Powder or granular materials are put into the interior of the drying cylinder, and the top cover is controlled to close on the top of the drying cylinder by the opening and closing control component. The low-temperature drying component is used to heat and dry the material at low temperature. After drying, the material can be discharged by opening the discharge pipe. Thereafter, the cleaning medium is sprayed into the interior of the drying cylinder by the spray component to automatically clean the interior of the drying cylinder. The top cover is then controlled to open by the opening and closing control component, and the material cleaning component is used to clean the material attached to the inner wall of the drying cylinder, thereby keeping the interior of the drying cylinder clean. During use, the effect of rapid and low-temperature drying of powder and granular materials is achieved. After drying, the device can be automatically cleaned to avoid contamination of the next batch of materials by residual materials, thereby ensuring the quality of the materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a front cross-sectional view of the drying cylinder structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the spray assembly of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the material cleaning component of the utility model;

[0019] Figure numerals: 1. Drying cylinder; 2. Top cover; 3. Opening and closing control assembly; 301. First support frame; 302. First electric push rod; 303. Rotating rod; 4. Low-temperature drying assembly; 401. Heating wire; 402. Vacuum system; 403. Motor; 404. Rotating shaft; 405. Spiral blade; 5. Spray assembly; 501. Water inlet pipe; 502. Annular pipe; 503. Nozzle; 6. Material cleaning assembly; 601. Second support frame; 602. Second electric push rod; 603. Connecting rod; 604. Slide; 605. Annular plate; 606. Rubber strip; 7. Feeding pipe. DETAILED DESCRIPTION

[0020] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0022] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. In addition, the terms "first," "second," etc. are used only to distinguish the descriptions and are not to be understood as indicating or implying relative importance.

[0023] The electrical components mentioned in this article are all connected to an external main controller and 220V AC power, and the main controller can be a conventional known device that performs control such as a computer.

[0024] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of the present invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the present invention.

[0025] like Figures 1 to 4 As shown, a device for low-temperature drying of powder and granular materials includes a drying cylinder 1, a top cover 2 is provided on the top surface of the drying cylinder 1, a discharge pipe 7 is fixedly connected to the bottom surface of the drying cylinder 1, an opening and closing control component 3 for controlling the rotation of the top cover 2 is provided on the surface of the drying cylinder 1, a low-temperature drying component 4 for drying the material is provided on the surface of the drying cylinder 1, a spray component 5 for spraying a cleaning medium into the interior of the drying cylinder 1 is provided on the surface of the drying cylinder 1, and a material cleaning component 6 for cleaning the inner wall of the drying cylinder 1 is also provided on the surface of the drying cylinder 1. More specifically, powder or granular material is put into the interior of the drying cylinder 1, and the top cover 2 is controlled to close on the top of the drying cylinder 1 by the opening and closing control component 3. The material is heated and dried at low temperature by the low-temperature drying component 4. After drying, the material can be discharged by opening the discharge pipe 7. Thereafter, the cleaning medium is sprayed into the interior of the drying cylinder 1 by the spray component 5 to automatically clean the interior of the drying cylinder 1. Then, the top cover 2 is controlled to open by the opening and closing control component 3, and the material cleaning component 6 is used to clean the material attached to the inner wall of the drying cylinder 1, thereby keeping the interior of the drying cylinder 1 clean.

[0026] The opening and closing control assembly 3 includes a first support frame 301, which is fixedly connected to the surface of the drying drum 1. A first electric push rod 302 is rotatably connected to the surface of the first support frame 301. The telescopic end of the first electric push rod 302 is hingedly connected to a rotating rod 303, and the end of the rotating rod 303 is hingedly connected to the top cover 2. It should be noted that the operation of the first electric push rod 302 drives its telescopic end to move, thereby pulling the rotating rod 303 to move, and the rotating rod 303 can be used to open or close the top cover 2.

[0027] The low-temperature drying component 4 includes a heating wire 401, and the heating wire 401 is fixedly connected to the bottom surface of the top cover 2. A vacuum system 402 is provided on the top of the top cover 2. A motor 403 is fixedly installed on the bottom surface of the drying cylinder 1. The output end of the motor 403 is fixedly connected to a rotating shaft 404, and a spiral blade 405 is fixedly connected to the surface of the rotating shaft 404. More specifically, the interior of the drying cylinder 1 can be evacuated into a negative pressure state through the vacuum system 402, wherein the vacuum system 402 can be composed of common equipment such as a vacuum pump. The principle will not be introduced in detail here. The internal environment of the drying cylinder 1 can be heated by the heating wire 401. Since the pressure under the vacuum environment is low, the boiling point of water will also be reduced. Therefore, the water in the material can be evaporated under low temperature conditions. The water vapor is then extracted by the vacuum system 402 and converted into liquid water through appropriate treatment, such as condensation, thereby achieving the effect of drying the material. During the drying process, the motor 403 drives the rotating shaft 404 and the spiral blade 405 to rotate, and the spiral blade 405 is used to stir the material, thereby evenly heating the material and improving the drying efficiency.

[0028] The spray assembly 5 includes a water inlet pipe 501, the end of which is fixedly connected to an annular pipe 502, which is fixedly mounted on the top surface of the top cover 2. A nozzle 503 is fixedly mounted on the bottom of the annular pipe 502. It should be noted that the water inlet pipe 501 is connected to an external water source. External cleaning medium is delivered into the water inlet pipe 501 via conventional equipment such as a water pump, flows into the annular pipe 502, and is ultimately sprayed into the interior of the drying cylinder 1 through the nozzle 503, thereby cleaning the interior of the drying cylinder 1 with the cleaning medium.

[0029] The material cleaning assembly 6 includes a second support frame 601, and the second support frame 601 is fixedly connected to the drying cylinder 1. A second electric push rod 602 is fixedly installed on the surface of the second support frame 601, and the telescopic end of the second electric push rod 602 is fixedly connected to a connecting rod 603. A slide groove 604 is opened through the surface of the second support frame 601, and the inner wall of the slide groove 604 is slidingly connected to the surface of the connecting rod 603. The end of the connecting rod 603 is fixedly connected to a ring plate 605, and the surface of the ring plate 605 is fixedly connected to a rubber strip 606, and the surface of the rubber strip 606 is slidingly connected to the inner wall of the drying cylinder 1. More specifically, the second electric push rod 602 is operated to drive its telescopic end to shorten, thereby pulling the connecting rod 603 to slide along the inner wall of the slide groove 604. The connecting rod 603 will push the annular plate 605 down, so that the annular plate 605 enters the interior of the drying cylinder 1. The rubber strip 606 will contact the inner wall of the drying cylinder 1 to remove the material attached to the inner wall of the drying cylinder 1, thereby effectively cleaning the inside of the drying cylinder 1.

[0030] There are multiple nozzles 503, and the multiple nozzles 503 are distributed in a circular array at the bottom of the annular tube 502. It should be noted that by arranging multiple nozzles 503 in a circular array, the interior of the drying cylinder 1 is fully sprayed, thereby improving the spray cleaning effect of the interior of the drying cylinder 1 and avoiding the existence of cleaning dead corners.

[0031] In summary: powder or granular material is put into the interior of the drying cylinder 1, and the top cover 2 is controlled to cover the top of the drying cylinder 1 by the opening and closing control component 3. The material is heated and dried at low temperature by the low-temperature drying component 4. After drying, the material can be discharged by opening the discharge pipe 7. Thereafter, the cleaning medium is sprayed into the interior of the drying cylinder 1 by the spray component 5 to automatically clean the interior of the drying cylinder 1. The top cover 2 is then controlled to open by the opening and closing control component 3, and the material cleaning component 6 is used to clean the material attached to the inner wall of the drying cylinder 1, thereby keeping the interior of the drying cylinder 1 clean. During use, the effect of rapid and low-temperature drying of powder and granular materials is achieved. After drying, the device can be automatically cleaned to avoid contamination of the next batch of materials by residual materials, thereby ensuring the quality of the materials.

[0032] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed for the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for low-temperature drying of powder and granular materials, characterized in that: The invention comprises a drying cylinder (1), wherein the top surface of the drying cylinder (1) is provided with a top cover (2), the bottom surface of the drying cylinder (1) is fixedly connected with a feeding pipe (7), the surface of the drying cylinder (1) is provided with an opening and closing control component (3) for controlling the rotation of the top cover (2), the surface of the drying cylinder (1) is provided with a low-temperature drying component (4) for drying the material, the surface of the top cover (2) is provided with a spray component (5) for spraying a cleaning medium into the interior of the drying cylinder (1), and the surface of the drying cylinder (1) is also provided with a material cleaning component (6) for cleaning the inner wall of the drying cylinder (1).

2. The device for low-temperature drying of powder and granular materials according to claim 1, characterized in that: The opening and closing control assembly (3) comprises a first support frame (301), and the first support frame (301) is fixedly connected to the surface of the drying cylinder (1); a first electric push rod (302) is rotatably connected to the surface of the first support frame (301); a rotating rod (303) is hinged at the telescopic end of the first electric push rod (302), and an end of the rotating rod (303) is hinged to the top cover (2).

3. The device for low-temperature drying of powder and granular materials according to claim 1, characterized in that: The low-temperature drying component (4) includes a heating wire (401), and the heating wire (401) is fixedly connected to the bottom surface of the top cover (2). A vacuum system (402) is provided on the top of the top cover (2). A motor (403) is fixedly installed on the bottom surface of the drying cylinder (1). The output end of the motor (403) is fixedly connected to a rotating shaft (404), and a spiral blade (405) is fixedly connected to the surface of the rotating shaft (404).

4. The device for low-temperature drying of powder and granular materials according to claim 1, characterized in that: The spray assembly (5) comprises a water inlet pipe (501), the end of the water inlet pipe (501) is fixedly connected to an annular pipe (502), and the annular pipe (502) is fixedly mounted on the top surface of the top cover (2), and a nozzle (503) is fixedly mounted on the bottom of the annular pipe (502).

5. The device for low-temperature drying of powder and granular materials according to claim 4, characterized in that: The material cleaning assembly (6) includes a second support frame (601), and the second support frame (601) is fixedly connected to the drying cylinder (1); a second electric push rod (602) is fixedly installed on the surface of the second support frame (601); the telescopic end of the second electric push rod (602) is fixedly connected to the connecting rod (603); a sliding groove (604) is opened through the surface of the second support frame (601), and the inner wall of the sliding groove (604) is slidably connected to the surface of the connecting rod (603); the end of the connecting rod (603) is fixedly connected to the annular plate (605), the surface of the annular plate (605) is fixedly connected to the rubber strip (606), and the surface of the rubber strip (606) is slidably connected to the inner wall of the drying cylinder (1).

6. The device for low-temperature drying of powder and granular materials according to claim 4, characterized in that: There are multiple nozzles (503), and the multiple nozzles (503) are distributed in an annular array at the bottom of the annular tube (502).

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