A plasma powder making device with a hierarchical structure

Abstract

The utility model relates to a plasma powder making device with a grading structure, which belongs to the technical field of plasma powder making devices, and comprises a base and a support box fixedly connected to the top of the base, a powder grading box fixedly connected to the top of the support box, and a screening mechanism for grading the powder is arranged inside the powder grading box. The plasma powder making device with a grading structure can sieve the powder transported to the inside of the grading box by arranging a grading box and a screening plate, and can drive the grading box and the support plate to move at the same time by arranging two telescopic cylinders, and then by arranging a connecting rod, the moving distance of the grading box is reduced, so that the effect of vibration screening can be achieved, and the efficiency of powder screening can be improved. By arranging a lower hopper and a fine powder collection box, the sieved powder can be collected, and the staff does not need to sieve the powder additionally, thereby improving the work efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of plasma powder making devices, in particular to a plasma powder making device with a hierarchical structure. Background Art

[0002] Radio frequency plasma is a process of ionizing gas under the action of high frequency and high voltage power supply to produce plasma at 6000-10000°C. Due to the extremely high temperature of plasma, radio frequency plasma has been widely used in the spheroidization of metal, alloy or refractory material powders in recent years. With radio frequency plasma technology as the core technology, various gases are ohmically heated to generate plasma through the induction of radio frequency electromagnetic field. The principle of spheroidizing powder is to quickly melt the irregular powder passing through the plasma torch at high temperature (10000K), so that it forms spherical particles due to surface tension during the descent process.

[0003] The Chinese utility model patent with announcement number CN217290414U discloses a radio frequency plasma powder making device with powder passivation function, including a passivation gas conveying device, a radio frequency plasma powder making reactor, a powder feeding device, a vacuum pump, a powder collecting tank, and a collecting and filtering device; the passivation gas conveying device is connected to the radio frequency plasma powder making reactor, and can convey passivation gas such as compressed air to the reaction chamber of the radio frequency plasma reactor; the radio frequency plasma powder making reactor is also connected to the powder feeder, the collecting and filtering device, and the powder collecting tank respectively; the collecting and filtering device is connected to the vacuum pump; the vacuum pump can evacuate the reaction chamber of the radio frequency plasma reactor. The utility model can safely passivate the micro powder generated on the inner wall of the reaction chamber after the radio frequency plasma powder making system has been working for a long time and then clean it up normally, avoiding the danger of micro powder dust explosion.

[0004] However, during use, the utility model does not have a grading and collecting device for separating the powders. After the powder is produced, powder particles of different sizes will be concentrated in the same powder collection tank, resulting in different sizes of powder particles inside. The staff will need to perform additional screening processing on them, which affects work efficiency and cannot meet production needs. Therefore, a plasma powder making device with a grading structure is proposed to solve the above-mentioned problems. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a plasma powder making device with a graded structure, which has the advantage of being easy to grade and collect powder particles, and solves the problem that there is no graded collection device for separating the powder. After the powder is made, powder particles of different sizes will be concentrated in the same powder collection tank, resulting in different sizes of powder particles inside. The staff are required to perform additional screening processing on them, which affects work efficiency and cannot meet production needs.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plasma powder making device with a grading structure, comprising a base and a support box fixedly connected to the top of the base, a powder grading box fixedly connected to the top of the support box, and a screening mechanism for grading powder is arranged inside the powder grading box;

[0007] The screening mechanism includes a grading box arranged inside the powder grading box, telescopic cylinders extending into the powder grading box are fixedly installed on the left and right sides of the powder grading box, the output end of the telescopic cylinder is fixedly connected to the grading box, a support plate is arranged inside the powder grading box, a connecting rod is rotatably connected between the support plate and the front face of the grading box, and a screening plate connected to the outside is fixedly connected to the inner bottom wall of the grading box.

[0008] Furthermore, one side of the support plate is fixedly connected to the output end of another telescopic cylinder, a through hole for powder to fall is opened inside the support plate, and the number of the connecting rods is four, and the four connecting rods are evenly distributed on the front and back of the grading box.

[0009] Furthermore, a mounting cylinder is fixedly connected to the inner wall of the powder classification box, an elastic connecting rod extending into the interior of the mounting cylinder is fixedly connected to one side of the classification box, and a return spring is fixedly connected between the mounting cylinder and the elastic connecting rod.

[0010] Furthermore, a lower hopper extending into the interior of the support box is fixedly installed inside the powder classification box, and a fine powder collection box is slidably connected to the inner bottom wall of the support box.

[0011] Furthermore, a support frame is fixedly installed on the top of the base, a reaction tank is fixedly connected to the interior of the support frame, and a feed pipe communicating with the interior of the reaction tank is fixedly connected to the bottom of the reaction tank.

[0012] Furthermore, a first powder delivery pump is fixedly installed on the top of the base, one end of the first powder delivery pump is fixedly connected to the discharge pipe, and one end of the first powder delivery pump away from the discharge pipe is fixedly connected to a delivery pipe extending into the powder grading box.

[0013] Furthermore, a plasma torch is fixedly installed on the top of the reaction tank, and a powder feeder is fixedly connected to a side of the plasma torch away from the reaction tank.

[0014] Furthermore, a fixed box is fixedly installed on the top of the base, and a second powder delivery pump is fixedly installed on the top of the base and between the fixed box and the support box. One end of the second powder delivery pump is fixedly connected to a hose extending to the inside of the powder grading box, and one end of the second powder delivery pump is fixedly connected to a discharge pipe extending to the inside of the fixed box, and a coarse powder collection box is slidably connected to the inside of the fixed box.

[0015] Compared with the prior art, the utility model provides a plasma powder making device with a hierarchical structure, which has the following beneficial effects:

[0016] 1. The plasma powder making device with a grading structure can screen the powder transported to the grading box by arranging a grading box and a screening plate. The grading box and the support plate are driven to move simultaneously by arranging two telescopic cylinders, and the moving distance of the grading box is shortened by arranging a connecting rod, so as to achieve a vibration screening effect and improve the efficiency of powder screening. The sieved powder can be collected by arranging a lower hopper and a fine powder collection box, and the staff does not need to screen the powder additionally, thereby improving the work efficiency.

[0017] 2. The plasma powder making device with a graded structure is convenient for absorbing powder by arranging a second powder conveying pump and a hose, and can collect the powder through the coarse powder collection box by arranging a discharge pipe and a coarse powder collection box, thereby achieving the effect of grading and collecting the powder, and solves the problem that there is no graded collection device for separating the powder. When the powder is made, powder particles of different sizes will be uniformly concentrated in the same powder collection tank, resulting in different sizes of powder particles inside. The staff are required to perform additional screening processing on the powder, which affects the work efficiency and cannot meet the production needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a cross-sectional view of the structure of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the screening mechanism of the utility model;

[0020] Figure 3 For this utility model Figure 2 A is a schematic diagram of the enlarged structure shown;

[0021] Figure 4 This is a structural stereogram of the grading box of the utility model;

[0022] Figure 5 It is a structural stereogram of the support box of the utility model.

[0023] In the figure: 1 base, 2 support box, 3 powder classification box, 4 classification box, 5 telescopic cylinder, 6 support plate, 7 connecting rod, 8 screening plate, 9 mounting tube, 10 elastic connecting rod, 11 return spring, 12 discharge hopper, 13 fine powder collection box, 14 support frame, 15 reaction tank, 16 discharge pipe, 17 first powder delivery pump, 18 delivery pipe, 19 plasma torch, 20 powder feeder, 21 fixed box, 22 second powder delivery pump, 23 hose, 24 discharge pipe, 25 coarse powder collection box. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Embodiment 1:

[0026] See also Figure 1-5 In the present embodiment, a plasma powder making device with a grading structure comprises a base 1 and a support box 2 fixedly connected to the top of the base 1, a powder grading box 3 is fixedly connected to the top of the support box 2, a screening mechanism for grading powder is arranged inside the powder grading box 3, and the screening mechanism comprises a grading box 4 arranged inside the powder grading box 3, telescopic cylinders 5 extending into the inside of the powder grading box 3 are fixedly installed on the left and right sides of the powder grading box 3, and the output end of the telescopic cylinder 5 is fixedly connected to the grading box 4, a support plate 6 is arranged inside the powder grading box 3, a connecting rod 7 is rotatably connected between the support plate 6 and the front face of the grading box 4, and a sieve plate 8 connected to the outside is fixedly connected to the inner bottom wall of the grading box 4.

[0027] Among them, one side of the support plate 6 is fixedly connected to the output end of another telescopic cylinder 5, a through hole for powder to fall is opened inside the support plate 6, the number of connecting rods 7 is four, and the four connecting rods 7 are evenly distributed on the front and back of the grading box 4. A mounting cylinder 9 is fixedly connected to the inner wall of the powder grading box 3, and one side of the grading box 4 is fixedly connected to an elastic connecting rod 10 extending to the inside of the mounting cylinder 9, and a reset spring 11 is fixedly connected between the mounting cylinder 9 and the elastic connecting rod 10.

[0028] It should be noted that a lower hopper 12 extending into the interior of the support box 2 is fixedly installed inside the powder grading box 3, a fine powder collection box 13 is slidably connected to the inner bottom wall of the support box 2, an installation cylinder 9 is distributed on one side of the inner wall of the powder grading box 3 close to the support plate 6, a box door is hinged on the front of the support box 2, and a controller is fixedly installed on the front of the box door.

[0029] In this embodiment, a support frame 14 is fixedly installed on the top of the base 1, a reaction tank 15 is fixedly connected to the inside of the support frame 14, a discharge pipe 16 connected to the inside of the reaction tank 15 is fixedly connected to the bottom of the reaction tank 15, a first powder delivery pump 17 is fixedly installed on the top of the base 1, one end of the first powder delivery pump 17 is fixedly connected to the discharge pipe 16, and one end of the first powder delivery pump 17 away from the discharge pipe 16 is fixedly connected to a delivery pipe 18 extending to the inside of the powder grading box 3.

[0030] A plasma torch 19 is fixedly installed on the top of the reaction tank 15 , a powder feeder 20 is fixedly connected to a side of the plasma torch 19 away from the reaction tank 15 , and a valve is fixedly installed on the outside of the feed pipe 16 .

[0031] Embodiment 2:

[0032] See also Figure 1 On the basis of the first embodiment, it includes a fixed box 21 fixedly installed on the top of the base 1, a second powder delivery pump 22 is fixedly installed on the top of the base 1 and between the fixed box 21 and the support box 2, one end of the second powder delivery pump 22 is fixedly connected to a hose 23 extending to the inside of the powder grading box 3, one end of the second powder delivery pump 22 is fixedly connected to a discharge pipe 24 extending to the inside of the fixed box 21, and a coarse powder collecting box 25 is slidably connected to the inside of the fixed box 21.

[0033] In this embodiment, the coarse powder collecting box 25 is the same size as the fine powder collecting box 13 , and a box door is hinged on the front of the fixed box 21 .

[0034] By adopting the above technical solution, by setting up a second powder delivery pump 22 and a hose 23, the powder can be easily absorbed. By setting up a discharge pipe 24 and a coarse powder collecting box 25, the powder can be collected through the coarse powder collecting box 25, thereby achieving the effect of graded collection of the powder.

[0035] The working principle of the above embodiment is:

[0036] First, the powder raw material to be processed is transported to the inside of the reaction tank 15 through the powder feeder 20 and the plasma torch 19 for reaction, and then the first powder conveying pump 17 is started to convey the reacted powder to the inside of the powder grading box 3, and at the same time, the two telescopic cylinders 5 are started to screen the powder, and the sieved fine powder is collected by the fine powder collecting box 13, and then the second powder conveying pump 22 is started to convey the coarse powder in the grading box 4 to the inside of the coarse powder collecting box 25. At this time, the staff can take out the fine powder collecting box 13 and the coarse powder collecting box 25 respectively.

[0037] The electrical components appearing in the article are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device for control such as a computer, and the existing public power connection technology is not described in detail in the article.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plasma powder making device with a hierarchical structure, comprising a base (1) and a support box (2) fixedly connected to the top of the base (1), characterized in that: A powder classification box (3) is fixedly connected to the top of the support box (2), and a screening mechanism for classifying powder is arranged inside the powder classification box (3); The screening mechanism comprises a grading box (4) arranged inside a powder grading box (3); telescopic cylinders (5) extending into the powder grading box (3) are fixedly mounted on both left and right sides of the powder grading box (3); the output end of the telescopic cylinder (5) is fixedly connected to the grading box (4); a support plate (6) is arranged inside the powder grading box (3); a connecting rod (7) is rotatably connected between the support plate (6) and the front surface of the grading box (4); and a screening plate (8) connected to the outside is fixedly connected to the inner bottom wall of the grading box (4).

2. The plasma powder making device with a hierarchical structure according to claim 1, characterized in that: One side of the support plate (6) is fixedly connected to the output end of another telescopic cylinder (5), and a through hole for powder to fall is provided inside the support plate (6). The number of the connecting rods (7) is four, and the four connecting rods (7) are evenly distributed on the front and back of the grading box (4).

3. The plasma powder making device with a hierarchical structure according to claim 1, characterized in that: A mounting cylinder (9) is fixedly connected to the inner wall of the powder classification box (3), an elastic connecting rod (10) extending into the interior of the mounting cylinder (9) is fixedly connected to one side of the classification box (4), and a return spring (11) is fixedly connected between the mounting cylinder (9) and the elastic connecting rod (10).

4. The plasma powder making device with a hierarchical structure according to claim 1, characterized in that: A lower hopper (12) extending into the interior of the support box (2) is fixedly installed inside the powder classification box (3), and a fine powder collection box (13) is slidably connected to the inner bottom wall of the support box (2).

5. The plasma powder making device with a hierarchical structure according to claim 1, characterized in that: A support frame (14) is fixedly mounted on the top of the base (1), a reaction tank (15) is fixedly connected to the interior of the support frame (14), and a feed pipe (16) communicating with the interior of the reaction tank (15) is fixedly connected to the bottom of the reaction tank (15).

6. The plasma powder making device with a hierarchical structure according to claim 5, characterized in that: A first powder delivery pump (17) is fixedly mounted on the top of the base (1), one end of the first powder delivery pump (17) is fixedly connected to a feed pipe (16), and one end of the first powder delivery pump (17) away from the feed pipe (16) is fixedly connected to a delivery pipe (18) extending into the interior of the powder classification box (3).

7. The plasma powder making device with a hierarchical structure according to claim 5, characterized in that: A plasma torch (19) is fixedly mounted on the top of the reaction tank (15), and a powder feeder (20) is fixedly connected to a side of the plasma torch (19) away from the reaction tank (15).

8. The plasma powder making device with a hierarchical structure according to claim 1, characterized in that: A fixed box (21) is fixedly installed on the top of the base (1); a second powder delivery pump (22) is fixedly installed on the top of the base (1) and between the fixed box (21) and the support box (2); one end of the second powder delivery pump (22) is fixedly connected to a hose (23) extending to the inside of the powder classification box (3); one end of the second powder delivery pump (22) is fixedly connected to a discharge pipe (24) extending to the inside of the fixed box (21); and a coarse powder collection box (25) is slidably connected to the inside of the fixed box (21).

Images