Drying equipment

Abstract

The utility model relates to drying equipment. The device comprises a drying bin, a motor, a collecting tank, a vacuum pump and a cooling device, a heating coil is wound outside the drying bin body; a feeding pipe is arranged at the top of the drying bin body; a rotating shaft is rotationally installed in the drying cavity, an arc-shaped stirring frame is arranged at the lower end of the rotating shaft, stirring blades are hinged to the stirring frame, and the outer edges of the stirring blades are attached to the side wall of the drying cavity; the collecting tank is connected with the drying cavity through a collecting pipe, and a cooling device is arranged on the collecting pipe. The top of the collecting tank is connected with a vacuum pump through a pipeline. The edges of the stirring blades are attached to the inner wall of the drying cavity as much as possible, the stirring blades can scrape off attached materials to the maximum extent, meanwhile, the drying cavity is made to be spherical so that dead angle areas in the cavity can be reduced, and in the stirring process, if the materials enter the space between the stirring blades and the inner wall of the drying cavity, the materials can be stirred more evenly, and the drying effect is better. The stirring blades can be lifted towards the front of the rotating direction, so that the problem that the stirring blades crush the materials is effectively avoided.

Description

Technical Field

[0001] This application relates to the technical field of drying equipment, and particularly to a drying equipment. Background Art

[0002] Most of the existing drying equipment has a heating device and a stirring device. The heating device is set to improve the drying speed of the equipment, and the stirring device is set to make the material heating more uniform.

[0003] When using the existing drying equipment to dry spherical powder with smaller particle size, due to the smaller particle size of the material, some materials will adhere to the inner side wall of the drying equipment, and the heating is not uniform enough, which may even cause overheating on the surface of some materials and oxidation problems. Summary of the Invention

[0004] To solve or partially solve the problems existing in the related art, this application provides a drying equipment, aiming to solve the technical problem of insufficient stirring during the heating and stirring process of the heating equipment.

[0005] For this purpose, this application provides a drying equipment, including a drying chamber body, a motor, a collection tank, a vacuum pump, and a cooling device;

[0006] A heating coil is wound around the lower part of the outer side surface of the drying chamber body; a spherical drying cavity is constructed inside the drying chamber body, and a feed pipe communicating with the drying cavity is provided at the top of the drying chamber body; a rotating shaft is rotatably installed in the drying cavity, and the rotating shaft is driven to rotate by a motor arranged on the drying chamber body. A circular arc-shaped stirring frame is provided at the lower end of the rotating shaft, and stirring blades are hinged on the stirring frame. The stirring blades are arranged at intervals along the stirring frame, and the outer edge of the stirring blade is in contact with the side wall of the drying cavity, and a chamfer is provided at the outer edge of the stirring blade;

[0007] A limiting rod against one side of the stirring blade is provided on the stirring frame, so that the stirring blade can only rotate in the rotation direction of the stirring frame and is inclined in the rotation direction of the stirring frame; the top of the collection tank is connected to the top of the drying cavity through a collection pipe, and a cooling device is provided on the collection pipe; the top of the collection tank is connected to the vacuum pump through a pipeline.

[0008] Optionally, in some solutions, the projections of the outer edges of all the stirring blades along the radial direction of the stirring frame form a complete line.

[0009] Optionally, in some solutions, a filter cylinder connected to the collection pipe is provided in the drying cavity, and a filter bag is sleeved at the lower end of the filter cylinder.

[0010] Optionally, in some solutions, a valve is provided on the feed pipe.

[0011] The technical solution provided by this application may include the following beneficial effects:

[0012] In this application, by making the edge of the stirring paddle as close as possible to the inner wall of the drying chamber, the stirring paddle can scrape off the adhered materials to the greatest extent. At the same time, the drying chamber is made spherical to reduce the dead corner area in the chamber. Furthermore, by hinging the stirring paddle and using the limiting rod to make the stirring paddle fit the inner wall of the drying chamber in an inclined state, when materials enter between the stirring paddle and the inner wall of the drying chamber during stirring, the stirring paddle will lift forward in the direction of its rotation, thus effectively avoiding the problem of the stirring paddle crushing the materials.

[0013] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] By describing the exemplary embodiments of this application in more detail in conjunction with the drawings, the above and other objects, features, and advantages of this application will become more obvious. Among them, in the exemplary embodiments of this application, the same reference numerals generally represent the same components.

[0015] Figure 1 is a schematic structural diagram of the drying equipment shown in the embodiments of this application;

[0016] Figure 2 is a schematic installation diagram of the stirring paddle of the drying equipment shown in the embodiments of this application;

[0017] Figure 3 is a schematic distribution diagram of the stirring paddles of the drying equipment shown in the embodiments of this application;

[0018] Reference Numerals:

[0019] 1. Drying bin body; 101. Drying chamber; 102. Feed pipe; 2. Motor; 3. Collection tank; 4. Vacuum pump; 5. Cooling device; 6. Heating coil; 7. Rotating shaft; 8. Stirring frame; 9. Stirring paddle; 10. Filter cylinder; 11. Filter bag; 12. Valve; 13. Limiting rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The embodiments of this application will be described in more detail below with reference to the drawings. Although the embodiments of this application are shown in the drawings, it should be understood that this application can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make this application more thorough and complete, and to fully convey the scope of this application to those skilled in the art.

[0021] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, "a plurality of" means two or more unless otherwise specifically defined.

[0022] In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to this application.

[0023] Unless otherwise clearly specified and defined, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0024] During the heating and stirring process of the existing heating equipment, due to a certain gap between the stirring blade and the inner wall of the heating equipment, some of the materials adhering to the inner wall of the heating equipment cannot be stirred by the stirring blade, resulting in uneven heating, and even problems such as overheating and oxidation during the heating process, which greatly affects the performance of the materials.

[0025] For this reason, please refer to Figure 1 and Figure 2 , this application provides a drying device, including a drying chamber body 1, a motor 2, a collection tank 3, a vacuum pump 4, and a cooling device 5.

[0026] A heating coil 6 surrounds the lower part of the outer side surface of the drying bin body 1, which matches the concentrated area of ​​the material to avoid heat waste; a spherical drying chamber 101 is constructed in the drying bin body 1. Compared with square and cylindrical chambers, there is no corner, and the material is not easy to accumulate. A feeding pipe 102 connected to the drying chamber 101 is provided on the top of the drying bin body 1, and the feeding pipe 102 is used to add the material to be dried into the drying bin; a rotating shaft 7 is rotatably installed in the drying chamber 101, and the rotating shaft 7 is driven to rotate by the motor 2 arranged on the drying bin body 1, that is, the upper end of the rotating shaft 7 extends upward and is connected to the output shaft of the motor 2, so that the motor 2 can drive the rotating shaft 7 to rotate when it rotates, and an arc-shaped stirring frame 8 is provided at the lower end of the rotating shaft 7, and the center of the stirring frame 8 coincides with the center of the sphere of the drying chamber 101.

[0027] The stirring frame 8 is provided with stirring blades 9, which are arranged at intervals along the stirring frame 8 to expand the stirring area of ​​the stirring blades 9. The outer edge of the stirring blades 9 is in contact with the side wall of the drying chamber 101 to reduce the gap between the stirring blades 9 and the inner wall of the drying chamber 101, so as to scrape off the attached materials to the greatest extent, thereby achieving the purpose of sufficient stirring and improving the uniformity of heating of the materials.

[0028] Furthermore, the stirring frame 8 is provided with a limit rod 13 against one side of the stirring blade 9, so that the stirring blade 9 can only rotate in the rotation direction of the stirring frame 8 and tilt in the rotation direction of the stirring frame 8. When the material enters between the stirring blade 9 and the inner wall of the drying chamber 101 during stirring, the stirring blade 9 will be lifted forward in the rotation direction, thereby effectively avoiding the problem of the stirring blade 9 crushing the material. At the same time, a chamfer is provided on the outer edge of the stirring blade 9 to increase the ability of the material to push the stirring blade 9 away.

[0029] The top of the collecting tank 3 is connected to the top of the drying chamber 101 through a collecting pipe, and a cooling device 5 is provided on the collecting pipe. The cooling device 5 adopts a water-cooled cooler, a plate heat exchanger, etc. The top of the collecting tank 3 is connected to the vacuum pump 4 through a pipeline.

[0030] The application process:

[0031] The material to be dried is introduced through the feed pipe 102, and then the cooling device 5, the vacuum pump 4, the motor 2, and the heating coil 6 are turned on in sequence. The heating coil 6 operates to increase the temperature inside the drying chamber 101. The motor 2 is energized to rotate, drives the stirring frame 8 to rotate through the rotating shaft 7, and then drives the stirring blades 9 to rotate, stirring the material inside the drying chamber 101, making the material heat more evenly. During the stirring process, when encountering the material embedded between the stirring blade 9 and the inner wall of the drying chamber 101, the stirring blade 9 rotates a certain angle forward in the rotating direction, thus preventing the material particles from being crushed. The solvent on the material is heated and evaporated, and is sucked away under the action of the vacuum pump 4. When passing through the cooling device 5, the evaporated solvent gas is condensed and then flows into the collection tank 3 for reuse.

[0032] Optionally, in some specific embodiments, as Figure 3 shown, the projections of the outer edges of all the stirring blades 9 along the radial direction of the stirring frame 8 form a complete line. As shown in the figure, there are 5 stirring blades 9, and the stirring blades 9 on the left and right sides are arranged in a staggered manner, so that the areas swept by the stirring blades 9 on the left and right sides are complementary, that is, the projections of the outer edges of the stirring blades 9 along the radial direction of the stirring frame 8 form a complete line, so that all the materials in the drying chamber 101 can be swept up, effectively ensuring the uniform heating of the materials. It can be imagined that when there are 5 stirring blades 9, the rotation axis of the lower stirring blade 9 is the same as the rotation axis of the rotating shaft 7. Therefore, this stirring blade 9 is fixedly connected to the stirring frame 8.

[0033] Optionally, in some specific embodiments, as Figure 1 shown, a filter cylinder 10 connected to the collection pipe is provided inside the drying chamber 101, and a filter bag 11 is sleeved at the lower end of the filter cylinder 10, effectively filtering the dust generated during the stirring of the material and ensuring the cleanliness of the recovered solvent.

[0034] Optionally, in some specific embodiments, a valve 12 is provided on the feed pipe 102. After the material is introduced, the feed pipe 102 is closed through the valve 12, so that only the solvent vapor is sucked away by the vacuum pump 4, and the solvent is easier to condense.

[0035] The embodiments of the present application have been described above. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles of the embodiments, the practical application or the improvement of the technology in the market, or to enable other ordinary technicians in the technical field to understand the disclosed embodiments.

Claims

1. A drying device, characterized in that: It includes a drying bin, a motor, a collecting tank, a vacuum pump, and a cooling device; A heating coil is surrounded by the lower part of the outer side surface of the drying bin body; a spherical drying chamber is constructed in the drying bin body, and a feeding pipe connected to the drying chamber is provided on the top of the drying bin body; a rotating shaft is rotatably installed in the drying chamber, and the rotating shaft is driven to rotate by a motor arranged on the drying bin body, and an arc-shaped stirring frame is provided at the lower end of the rotating shaft, and stirring blades are hinged on the stirring frame, and the stirring blades are arranged at intervals along the stirring frame, and the outer edges of the stirring blades are in contact with the side walls of the drying chamber, and chamfers are provided on the outer edges of the stirring blades; The stirring frame is provided with a limit rod which abuts against one side of the stirring blade, so that the stirring blade can only rotate in the rotation direction of the stirring frame and tilt in the rotation direction of the stirring frame; The top of the collecting tank is connected to the top of the drying chamber through a collecting pipe, and a cooling device is provided on the collecting pipe; the top of the collecting tank is connected to a vacuum pump through a pipeline.

2. A drying device according to claim 1, characterized in that: The radial projections of the outer edges of all the stirring blades along the stirring frame form a complete line.

3. A drying device according to claim 1, characterized in that: A filter cartridge connected to the collecting pipe is arranged in the drying chamber, and a filter bag is sleeved on the lower end of the filter cartridge.

4. A drying device according to claim 1, characterized in that: The feed pipe is provided with a valve.

Images