Drying device for metal powder processing

Abstract

The utility model relates to a drying device for metal powder processing, which comprises an electric heating box, and a first stirring cavity, a second stirring cavity and a drying cavity are sequentially arranged in the electric heating box from top to bottom; the first stirring cavity and the second stirring cavity are separated through a first filter plate which is fixedly installed, and the second stirring cavity and the drying cavity are separated through a second filter plate which is fixedly installed. A bearing plate is arranged on the inner wall of the drying cavity and located below the second filter screen. According to the metal powder drying device, metal powder is stirred and dried in a layered mode, the metal powder is prevented from being accumulated and caked in the drying process, meanwhile, the drying frequency is increased, the drying efficiency is improved, and the drying efficiency is improved. And the interior of the powder is heated more uniformly, and the drying effect of the device is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of metal powder processing, in particular to a drying device for metal powder processing. Background Art

[0002] Metal powder refers to a group of metal particles with a size less than 1mm, including single metal powder, alloy powder and certain refractory compound powders with metallic properties. It is the main raw material for powder metallurgy. When metal powder is reprocessed, it needs to be dried to meet the dryness requirements of the powder.

[0003] For example, the patent publication number: CN210689012U discloses a powder drying device for metal powder blocks, including a working box, a cover plate is provided at the upper end of the working box, electric heating boxes are provided on both sides of the lower end of the inner part of the working box, a number of heating wires are provided between the two groups of electric heating boxes, a heat conducting plate is provided above the heating wires and inside the working box, a movable box is provided above the heat conducting plate, a swing device is provided on one side of the movable box and outside the working box, and a number of through holes are opened at the upper end of the cover plate.

[0004] Regarding the above-mentioned related technologies, the inventors believe that although the existing drying devices can dry metal powders, a large amount of powder will accumulate and agglomerate during the actual drying process, resulting in uneven heating of the metal powder and a slow internal heating rate, which will easily affect the drying effect. Moreover, when the metal powder has a high amount of internal water, it is difficult to completely remove the internal water through only one drying, and the drying effect is limited. Utility Model Content

[0005] In order to solve the problems in the above background technology, the utility model provides a drying device for metal powder processing.

[0006] The utility model adopts the following technical solution: a drying device for metal powder processing, comprising an electric heating box, wherein a first stirring chamber, a second stirring chamber and a drying chamber are sequentially arranged inside the electric heating box from top to bottom;

[0007] The first stirring chamber and the second stirring chamber are separated by a fixedly installed first filter plate, and the second stirring chamber and the drying chamber are separated by a fixedly installed second filter plate; the mesh diameter of the second filter plate is smaller than the mesh diameter of the first filter plate, and a bearing plate is provided on the inner wall of the drying chamber below the second filter screen;

[0008] A stirring shaft is rotatably connected inside the first stirring chamber and the second stirring chamber, a plurality of stirring rods are symmetrically fixed on the outer surface of the stirring shaft, and a driving component for controlling the rotation of the stirring shaft is provided at the upper end of the electric heating box.

[0009] As a preferred embodiment of the present invention, the lower end of the stirring shaft passes through the first filter plate and is rotatably connected to the second filter plate, and the upper end of the stirring shaft passes through the electric heating box and is connected to the driving assembly.

[0010] As a preferred embodiment of the present invention, the drive assembly includes a motor, which is fixedly mounted at the center of the upper end of the electric heating box through a fixing seat, and the motor output shaft passes downward through the electric heating box and is fixedly connected to the upper end of the stirring shaft.

[0011] As a preferred embodiment of the present invention, a scraper which is slidably fitted with the inner wall of the electric heating box is welded to one end of the stirring rod.

[0012] As a preferred embodiment of the utility model, the number of the supporting plates is two, limiting grooves are respectively provided on both sides of the inner wall of the drying chamber, and the inner wall of the limiting groove is symmetrically provided with rotation grooves, and a rotation shaft is symmetrically fixed on one side of the two supporting plates, and the rotation shaft is installed in the rotation groove and rotatably connected thereto, and the end faces on the other sides of the two supporting plates are fitted and connected to each other.

[0013] As a preferred embodiment of the utility model, two electric telescopic rods are symmetrically installed at the bottom of the drying chamber below the two supporting plates, a first connecting block is fixed to the lower end of the supporting plate, a second connecting block is fixed to the telescopic end of the electric telescopic rod, and the first connecting block and the second connecting block are rotatably connected by a connecting pin.

[0014] As a preferred embodiment of the present invention, a discharge pipe is provided at the bottom of the drying chamber between the two electric telescopic rods, and the discharge pipe penetrates downward through the drying chamber and extends to the outside of the electric heating box.

[0015] As a preferred embodiment of the present invention, a feed inlet is provided on an upper end surface of the electric heating box located on one side of the motor.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model realizes graded drying of metal powder by arranging a first stirring chamber, a second stirring chamber and a drying chamber, and accelerates the evaporation of water inside the powder by increasing the number of drying times; the stirring shaft is driven to rotate by a motor to stir and disperse the metal powder in the first stirring chamber and the second stirring chamber respectively, and the inside of the powder is heated evenly, thereby further improving the drying effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the device of the utility model;

[0019] Figure 2 It is a cross-sectional view of the internal structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the load-bearing plate of the utility model when it is opened;

[0021] Figure 4 It is a schematic diagram of the connection structure of the load-bearing plate of the utility model.

[0022] In the figure: 1. electric heating box; 11. first stirring chamber; 12. second stirring chamber; 13. drying chamber; 131. limiting groove; 131a. rotating groove; 14. feeding port; 2. first filter plate; 3. second filter plate; 4. supporting plate; 41. rotating shaft; 42. first connecting block; 5. stirring shaft; 51. stirring rod; 52. scraper; 6. driving assembly; 61. motor; 62. fixing seat; 7. electric telescopic rod; 71. second connecting block; 8. connecting pin; 9. discharge pipe. DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0024] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly connected by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0026] See also Figures 1 to 4The utility model provides a drying device for metal powder processing, comprising an electric heating box 1, wherein a first stirring chamber 11, a second stirring chamber 12 and a drying chamber 13 are sequentially arranged inside the electric heating box 1 from top to bottom; the first stirring chamber 11 and the second stirring chamber 12 are separated by a fixedly installed first filter plate 2, and the second stirring chamber 12 and the drying chamber 13 are separated by a fixedly installed second filter plate 3; the mesh diameter provided on the second filter plate 3 is smaller than the mesh diameter provided on the first filter plate 2, and a bearing plate 4 is provided on the inner wall of the drying chamber 13 below the second filter plate 3; a stirring shaft 5 is rotatably connected inside the first stirring chamber 11 and the second stirring chamber 12, and a plurality of stirring rods 51 are symmetrically fixed on the outer surface of the stirring shaft 5, and a driving component 6 for controlling the rotation of the stirring shaft 5 is provided at the upper end of the electric heating box 1.

[0027] The metal powder is dried by setting a first stirring chamber 11, a second stirring chamber 12 and a drying chamber 13, the interior of which is continuously heated by the electric heating box 1, and the stirring shaft 5 is controlled by the driving component 6 to drive the stirring rod 51 to rotate, thereby fully stirring the metal powder, thereby increasing the contact area of ​​the metal powder that is heated, accelerating the evaporation of water, and improving the drying effect.

[0028] Among them, the electric heating box 1 of the present device is the existing technology, and its structural principle is to start the internal heating wire or heating tube for continuous heating after power is turned on. The present device also includes a switch, a power supply, power supply wires and a controller, etc. Since it is not the main technology, it will not be described in detail. The power supply and the electrical equipment of the present device are connected by wires.

[0029] Please pay attention to Figures 1-2 , the lower end of the stirring shaft 5 passes through the first filter plate 2 and is rotatably connected to the second filter plate 3, and the upper end of the stirring shaft 5 passes through the electric heating box 1 and is connected to the driving assembly 6. The driving assembly 6 includes a motor 61, and the motor 61 is fixedly installed at the center of the upper end of the electric heating box 1 through a fixing seat 62. The output shaft of the motor 61 passes through the electric heating box 1 downward and is fixedly connected to the upper end of the stirring shaft 5. By starting the motor 61 to drive the stirring shaft 5 and the stirring rod 51 to rotate, the metal powder in the first stirring chamber 11 and the second stirring chamber 12 is constantly moving, which prevents the powder from accumulating and agglomerating, and makes the powder evenly heated inside to accelerate the evaporation of water. A scraper 52 is welded at one end of the stirring rod 51, which is slidably fitted with the inner wall of the electric heating box 1. The scraper 52 is driven to scrape the inner wall of the electric heating box 1 while the stirring rod 51 rotates, so as to prevent the metal powder from adhering to the inner wall of the electric heating box 1.

[0030] Please pay attention to Figures 2 to 4, the number of the bearing plates 4 is two, and the inner walls of the drying chamber 13 are provided with limiting grooves 131 on both sides, and the inner walls of the limiting grooves 131 are symmetrically provided with rotation grooves 131a, and the rotation shafts 41 are symmetrically fixed on one side of the two bearing plates 4, and the rotation shafts 41 are installed in the rotation grooves 131a and are rotatably connected thereto, and the end faces of the other sides of the two bearing plates 4 are fitted and connected to each other. The above design facilitates the control of one end of the two bearing plates 4 to rotate downward along the rotation grooves 131a, thereby driving the other ends of the two bearing plates 4 to move downward, and realizing the opening and closing of the bearing plates 4. The bottom of the drying chamber 13 is located below the two bearing plates 4 and is symmetrically provided with two electric telescopic rods 7, and the lower end of the bearing plate 4 is fixed with a first connecting block 42, and the telescopic end of the electric telescopic rod 7 is fixed with a second connecting block 71, and the first connecting block 42 and the second connecting block 71 are rotatably connected by a connecting pin 8. The first connection block 42 is driven to move downward by starting the electric telescopic rod 7. When the first connection block 42 moves downward, it is rotatably connected with the second connection block 71, thereby driving one end of the carrying plate 4 to move downward.

[0031] Please pay attention to Figures 2-3 The upper end surface of the electric heating box 1 is located on one side of the motor 61 and is provided with a feed port 14. The bottom of the drying chamber 13 is located between the two electric telescopic rods 7 and is provided with a discharge pipe 9. The discharge pipe 9 passes through the drying chamber 13 downward and extends to the outside of the electric heating box 1. After the electric telescopic rod 7 is started to drive one end of the two carrying plates 4 to move downward, the carrying plates 4 are opened so that the dried metal powder falls into the discharge pipe 9 for easy collection.

[0032] The implementation principle of a drying device for metal powder processing of the utility model is:

[0033] The metal powder to be dried is poured into the electric heating box 1 through the feed port 14, and then the electric heating box 1 is started to heat the inside thereof, and at the same time, the motor 61 is started to control the stirring shaft 5 to drive the stirring rod 51 to rotate;

[0034] First, the first mixing chamber 11 performs the first drying process. The electric heating box 1 continuously heats the first mixing chamber 11 to accelerate the evaporation of water inside the metal powder. At the same time, the accumulated powder blocks are broken up into smaller powder blocks by the rotating mixing rod 51 and then fall into the second mixing chamber 12 through the mesh on the first filter plate 2.

[0035] Then the second mixing chamber 12 continues the second drying process. While the electric heating box 1 continues to heat the second mixing chamber 12, the mixing rod 51 further mixes and disperses the small powder blocks on the second filter plate 3, thereby accelerating the heating rate inside the powder. The further dispersed metal powder passes through the mesh on the second filter plate 3 and falls into the drying chamber 13.

[0036] The drying chamber 13 then performs the last drying process, and the metal powder on the carrier plate 4 is further heated by the electric heating box 1. The above steps increase the heating area inside the metal powder, so that the water evaporates completely. Finally, the electric telescopic rod 7 is started to drive the first connecting block 42 to move downward. While the first connecting block 42 moves downward, it is connected to the second connecting block 71 by rotation, thereby driving one end of the carrier plate 4 to move downward, and the other end of the carrier plate 4 is rotated downward along the rotating groove 131a through the rotating shaft 41, thereby opening the carrier plate 4, so that the dried metal powder falls into the discharge pipe 9 for easy collection.

[0037] The above description of the utility model in combination with the accompanying drawings is an exemplary description. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as the non-substantial improvements are made by adopting the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A drying device for metal powder processing, comprising an electric heating box (1), characterized in that: The electric heating box (1) is provided with a first stirring chamber (11), a second stirring chamber (12) and a drying chamber (13) in sequence from top to bottom; The first stirring chamber (11) and the second stirring chamber (12) are separated by a fixedly installed first filter plate (2), and the second stirring chamber (12) and the drying chamber (13) are separated by a fixedly installed second filter plate (3); the diameter of the mesh openings on the second filter plate (3) is smaller than the diameter of the mesh openings on the first filter plate (2), and a bearing plate (4) is provided on the inner wall of the drying chamber (13) below the second filter plate (3); A stirring shaft (5) is rotatably connected inside the first stirring chamber (11) and the second stirring chamber (12), a plurality of stirring rods (51) are symmetrically fixed on the outer surface of the stirring shaft (5), and a driving component (6) for controlling the rotation of the stirring shaft (5) is provided at the upper end of the electric heating box (1).

2. A drying device for metal powder processing according to claim 1, characterized in that: The lower end of the stirring shaft (5) passes through the first filter plate (2) and is rotatably connected to the second filter plate (3), and the upper end of the stirring shaft (5) passes through the electric heating box (1) and is connected to the driving component (6).

3. A drying device for metal powder processing according to claim 2, characterized in that: The driving assembly (6) comprises a motor (61), and the motor (61) is fixedly mounted at the center of the upper end of the electric heating box (1) via a fixing seat (62). The output shaft of the motor (61) passes through the electric heating box (1) downward and is fixedly connected to the upper end of the stirring shaft (5).

4. A drying device for metal powder processing according to claim 3, characterized in that: A scraper (52) is welded to one end of the stirring rod (51) and is slidably fitted with the inner wall of the electric heating box (1).

5. A drying device for metal powder processing according to claim 1, characterized in that: The number of the bearing plates (4) is two, and limiting grooves (131) are respectively provided on both sides of the inner wall of the drying chamber (13), and the inner wall of the limiting groove (131) is symmetrically provided with rotation grooves (131a), and a rotation shaft (41) is symmetrically fixed on one side of the two bearing plates (4), and the rotation shaft (41) is installed in the rotation groove (131a) and is rotationally connected thereto, and the end surfaces on the other sides of the two bearing plates (4) are mutually fitted and connected.

6. A drying device for metal powder processing according to claim 5, characterized in that: The bottom of the drying chamber (13) is located below the two supporting plates (4) and is symmetrically provided with two electric telescopic rods (7); a first connecting block (42) is fixed to the lower end of the supporting plate (4); a second connecting block (71) is fixed to the telescopic end of the electric telescopic rod (7); the first connecting block (42) and the second connecting block (71) are rotatably connected via a connecting pin (8).

7. A drying device for metal powder processing according to claim 6, characterized in that: A discharge pipe (9) is provided at the bottom of the drying chamber (13) between the two electric telescopic rods (7), and the discharge pipe (9) passes downward through the drying chamber (13) and extends to the outside of the electric heating box (1).

8. A drying device for metal powder processing according to claim 3, characterized in that: A feed inlet (14) is provided on the upper end surface of the electric heating box (1) at one side of the motor (61).

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