Automatic air supply equipment on equipment for preparing metal alloy powder by gas atomization

Abstract

The invention belongs to the technical field of gas atomization powder manufacturing equipment, and particularly relates to automatic gas supplementing equipment on gas atomization metal alloy powder manufacturing equipment, the automatic gas supplementing equipment comprises an atomization tank and a gas supplementing tank, the gas supplementing tank is fixed on the outer wall of the atomization tank, and the outer wall of the atomization tank and the outer wall of the gas supplementing tank are provided with openings with corresponding positions; a pressure sensor is fixed to the inner bottom wall of the air supplementing tank, a probe of the pressure sensor penetrates and extends into the atomization tank, a connecting frame is fixed in the air supplementing tank, one end of the connecting frame penetrates through the opening and extends into the atomization tank, and a sealing mechanism is arranged at the other end of the connecting frame. The sealing mechanism comprises a sealing plate rotationally connected with the inner wall of the end of the connecting frame. When air is supplemented into the atomization tank through the air supplementing tank, the rotating rod rotates to drive the air supplementing pipe to swing back and forth in a reciprocating mode, air flow is evenly distributed in the atomization tank, air pressure balance of all positions is achieved, it is guaranteed that the air pressure is accurately measured by a pressure sensor probe, and secondary air supplementing is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of gas atomization powder making equipment, and in particular to automatic gas replenishing equipment on gas atomization preparation equipment for metal alloy powder. Background Art

[0002] High-performance alloy powders are increasingly used in aerospace, electronic information, energy and electricity, metallurgical machinery and other fields. The atomization method for producing high-performance alloy powders is one of the main methods for preparing metal powders, among which gas atomization powder making technology is one of the most widely used technologies.

[0003] The prior art discloses an automatic air replenishing device used in an aerosol powder making device, the automatic air replenishing device consists of an air replenishing device and a pressure sensing device, the air replenishing device can replenish air into a feed bin of the aerosol powder making device through its air inlet pipe, and the air outlet of the air inlet pipe is upward to prevent the airflow from impacting the material rods in the aerosol powder making device, the pressure sensing device is arranged in the aerosol powder making device, and is used to detect the air pressure data in the aerosol powder making device, and the air pressure data can reflect the flow condition of the airflow of the aerosol powder making device; however, the air replenishing device adopts direct introduction of the replenished airflow, the airflow distribution is uneven, or there is a place where the air pressure is too high, resulting in inaccurate detection of the pressure sensor, resulting in a reduction in replenished gas, requiring secondary work, and increasing component wear.

[0004] In order to solve the above problems, we proposed an automated gas replenishing device for the gas atomization preparation of metal alloy powder equipment. Summary of the invention

[0005] The purpose of the present invention is to solve the problems in the background technology and to propose an automatic gas replenishing device for gas atomization preparation of metal alloy powder.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an automated gas replenishing device on a gas atomization preparation metal alloy powder device, comprising an atomizing tank and a gas replenishing tank, wherein the gas replenishing tank is fixed on the outer wall of the atomizing tank, and the outer walls of the atomizing tank and the gas replenishing tank are provided with openings corresponding to the positions, a pressure sensor is fixed on the inner bottom wall of the gas replenishing tank, and the probe of the pressure sensor extends through and into the atomizing tank, a connecting frame is fixed in the gas replenishing tank, one end of the connecting frame extends through the opening into the atomizing tank, and a closing mechanism is provided on the other end of the connecting frame, and the closing mechanism is provided on the inner bottom wall of the gas replenishing tank. The mechanism includes a sealing plate rotatably connected to the inner wall of the end of the connecting frame, a telescopic rod is fixedly connected to the inner wall of the air supply tank, a driving end of the telescopic rod is fixedly connected to a push plate in contact with the inner walls of the ends of the two sealing plates, a telescopic spring is fixedly connected between the other ends of the two sealing plates and the inner wall of the connecting frame, the pressure sensor is connected to the telescopic rod through a controller, an air supply pipe is rotatably arranged in the connecting frame, and the air flow is evenly supplied to the atomizer tank through the rotation of the air supply pipe, and a rubber connecting piece is fixedly connected between the end of the air supply pipe and the inner wall of the end of the connecting frame.

[0007] In the automated air supply equipment on the above-mentioned aerosolized metal alloy powder preparation equipment, an air supply pipe is slidably arranged inside the air supply pipe, an air inlet is arranged on the outer wall of the air supply pipe, and a plurality of air inlet pipes are evenly laid in the air supply pipe and arranged at intervals. The inner diameters of the plurality of air inlet pipes are different, and the sliding of the air supply pipe can realize the alignment of different air inlet pipe ends with the air inlet to realize the connection between the air inlet pipe and the inside of the connecting frame.

[0008] In the above-mentioned automated air supply equipment on the aerosol-assisted metal alloy powder preparation equipment, a motor is fixedly connected to the outer wall of the air supply pipe, a screw is fixedly connected to the driving end of the motor, a slider is threadedly connected to the outer wall of the screw, a guide rod is also fixed to the outer wall of the air supply pipe, the end of the slider is slidably sleeved on the outer wall of the guide rod, and a connecting rod is fixedly connected between the slider and the air supply pipe.

[0009] In the automatic air supply equipment on the above-mentioned aerosol atomization equipment for preparing metal alloy powder, a notch is opened on the outer wall of the atomizing tank, and an equipment box is fixed in the notch. A motor is fixedly connected to the equipment box, and an incomplete gear is fixedly connected to the driving end of the motor. A driven gear meshing with the incomplete gear is installed in the equipment box, and a guide plate is fixedly connected to the inner wall of the equipment box. A movable plate is slidingly sleeved on the end of the guide plate. The outer wall of the movable plate contacts the incomplete gear and the driven gear and is provided with serrations meshing with the two. A rotating rod is fixedly connected to the upper side wall of the driven gear, and the upper end of the rotating rod passes through the equipment box and the air supply tank in sequence and is fixedly connected to the middle part of the air supply pipe, and a sealed bearing is installed at the connection between the air supply tank and the rotating rod.

[0010] In the above-mentioned automatic air replenishing equipment on the aerosol preparation metal alloy powder equipment, a passive gear is also installed in the equipment box, the outer wall of the movable plate is in contact with the passive gear and is provided with serrations meshing therewith, the driven gear and the passive gear are located on both sides of the movable plate, the upper side wall of the passive gear is fixedly connected with a rotating shaft, a drying plate is fixed in the atomization tank, the upper end of the rotating shaft passes through the equipment box, the inner top wall of the notch and the drying plate in sequence, and a rocker arm is provided and fixedly connected thereto, the end of the rocker arm is fixedly connected with a scraper in contact with the upper side wall of the drying plate, and a sealed bearing 2 is installed at the connection between the drying plate and the rotating shaft.

[0011] In the above-mentioned automatic air supply device on the gas atomization equipment for preparing metal alloy powder, the diameter of the rubber connecting piece is larger than the inner diameter of the end of the connecting frame.

[0012] Compared with the existing technology, the advantages of the automatic gas supply equipment on the gas atomization equipment for preparing metal alloy powder are:

[0013] When the air in the atomizer tank is replenished with air through the air replenishment tank, the rotation of the rotating rod drives the air replenishment pipe to swing back and forth, so that the air flow is evenly distributed in the atomizer tank, the air pressure at each position is balanced, the pressure sensor probe is guaranteed to measure the air pressure accurately, and secondary air replenishment is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional diagram of the automatic gas supply device on the gas atomization equipment for preparing metal alloy powders proposed by the present invention;

[0015] Figure 2 It is a top view of the automatic gas supply device on the gas atomization equipment for preparing metal alloy powder proposed by the present invention;

[0016] Figure 3 for Figure 2 A magnified view of the structure of part A;

[0017] Figure 4 It is a front view of the internal structure of the atomizing tank in the automatic gas replenishing device on the gas atomization equipment for preparing metal alloy powders proposed by the present invention;

[0018] Figure 5 This is a top view of the interior of an equipment box in the automated gas replenishment equipment on the gas atomization equipment for preparing metal alloy powders proposed by the present invention.

[0019] In the figure: 1 atomizing tank, 2 air supply tank, 3 pressure sensor, 4 connecting frame, 5 telescopic rod, 6 push plate, 7 sealing plate, 8 telescopic spring, 9 air supply pipe, 10 air supply pipe, 11 motor, 12 screw rod, 13 guide rod, 14 slider, 15 air inlet, 16 air inlet pipe, 17 equipment box, 18 rotating rod, 19 moving plate, 20 motor, 21 incomplete gear, 22 driven gear, 23 passive gear, 24 drying plate, 25 rotating shaft, 26 sealed bearing II, 27 rocker rod, 28 scraper, 29 guide plate. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention 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 therefore cannot be understood as a limitation on the present invention.

[0022] Reference Figure 1-5, an automated gas replenishing device on a gas atomization equipment for preparing metal alloy powder, comprises an atomizing tank 1 and a gas replenishing tank 2, the gas replenishing tank 2 is fixed on the outer wall of the atomizing tank 1, and openings corresponding to the positions are provided on the outer walls of the atomizing tank 1 and the gas replenishing tank 2, a pressure sensor 3 is fixed on the inner bottom wall of the gas replenishing tank 2, and the probe of the pressure sensor 3 extends through and extends into the atomizing tank 1, a connecting frame 4 is fixed in the gas replenishing tank 2, one end of the connecting frame 4 extends into the atomizing tank 1 through the opening, and a closing mechanism is provided at the other end of the connecting frame 4, and the closing mechanism comprises a sealing plate 7 rotatably connected to the inner wall of the end of the connecting frame 4, a telescopic rod 5 is fixedly connected to the inner wall of the gas replenishing tank 2, a driving end of the telescopic rod 5 is fixedly connected to a push plate 6 in contact with the inner walls of the ends of the two sealing plates 7, a telescopic spring 8 is fixedly connected between the other ends of the two sealing plates 7 and the inner wall of the connecting frame 4, and the pressure sensor 3 is connected to the telescopic rod 5 through a controller Then, an air supply pipe 9 is rotatably arranged in the connecting frame 4, and the air flow is evenly supplied to the atomizing tank 1 through the rotation of the air supply pipe 9. The air pressure in the atomizing tank 1 is measured by the pressure sensor 3. When the air pressure is less than the preset value, the controller controls the telescopic rod 5 to work, and the driving end of the telescopic rod 5 is retracted, driving the push plate 6 to move to the side away from the atomizing tank 1, and the push plate 6 no longer presses against the end of the sealing plate 7. Under the reverse elastic force of the telescopic spring 8, the end of the sealing plate 7 rotates toward the inner wall of the connecting frame 4. At this time, the end of the connecting frame 4 is open, and the gas in the air supply tank 2 can enter the connecting frame 4, and then be introduced into the atomizing tank 1 through the air supply pipe 9 to complete the air supply work. When the air pressure reaches the set value, the driving end of the telescopic rod 5 extends out, and the push plate 6 squeezes the end of the sealing plate 7 and rotates outward, and the other end of the sealing plate 7 rotates inward to contact and close, thereby completing the end sealing work of the connecting frame 4.

[0023] Furthermore, a rubber connecting piece is fixedly connected between the end of the air supply pipe 9 and the inner wall of the end of the connecting frame 4. The diameter of the rubber connecting piece is larger than the inner diameter of the end of the connecting frame 4. The rubber connecting piece is in a state of extrusion and contraction in the connecting frame 4. During the rotation of the air supply pipe 9, the rubber connecting piece can be pulled or squeezed, so that the air supply pipe 9 can be rotated while the sealing work of the end of the connecting frame 4 can be achieved.

[0024] A notch is provided on the outer wall of the atomizer tank 1, in which an equipment box 17 is fixed, in which a motor 20 is fixedly connected, in which a driving end of the motor 20 is fixedly connected, in which a driven gear 22 meshing with the incomplete gear 21 is installed, a guide plate 29 is fixedly connected to the inner wall of the equipment box 17, a movable plate 19 is slidably sleeved on the end of the guide plate 29, an outer wall of the movable plate 19 contacts the incomplete gear 21 and the driven gear 22 and is provided with saw teeth meshing with the two, a rotating rod 18 is fixedly connected to the upper side wall of the driven gear 22, the upper end of the rotating rod 18 passes through the equipment box 17 and the air supply tank 2 in sequence and is fixedly connected to the middle part of the air supply pipe 9, a sealed bearing 1 is installed at the connection between the air supply tank 2 and the rotating rod 18, the motor 20 drives the incomplete gear 21 to rotate, and when the incomplete gear 21 meshes with the driven gear 22, it drives the driven gear 22, the rotating rod 18 and the air supply pipe 9 The reverse rotation drives the engagement of the driven gear 22 with the serrations on the movable plate 19, driving the movable plate 19 to move to the left. At this time, the movable plate 19 drives the passive gear 23 and the scraper 28 (the scraper 28 is connected to the rotating shaft 25 through the rocker rod 27, and the rotating shaft 25 is connected to the passive gear 23) to rotate forward. When the incomplete gear 21 rotates to engage with the serrations on the movable plate 19, the movable plate 19 is driven to move to the right. At this time, the engagement of the serrations on the movable plate 19 with the driven gear 22 and the passive gear 23 drives the driven gear 22 and the air supply pipe 9 to rotate forward, driving the passive gear 23 and the scraper 28 to rotate reversely, thereby realizing the back and forth swing of the air supply pipe 9 and the scraper 28. The back and forth swing of the air supply pipe 9 can change the position where the airflow enters the atomizer tank 1, ensuring uniform airflow distribution, that is, ensuring that the air pressure at each position in the atomizer tank 1 is consistent, and the set air pressure can be reached by one air supply, avoiding secondary air supply.

[0025] An air supply pipe 10 is slidably arranged in the air supply pipe 9, and an air inlet 15 is arranged on the outer wall of the air supply pipe 9. A plurality of air inlet pipes 16 arranged at intervals are evenly laid in the air supply pipe 10, and the inner diameters of the plurality of air inlet pipes 16 are different. The sliding of the air supply pipe 10 realizes that different ends of the air inlet pipes 16 are aligned with the air inlet 15 to realize the connection between the air inlet pipe 16 and the inside of the connecting frame 4. A motor 11 is fixedly connected to the outer wall of the air supply pipe 9, and a screw 12 is fixedly connected to the driving end of the motor 11, and a slider 14 is threadedly connected to the outer wall of the screw 12. A guide rod 13 is also fixed to the outer wall of the air supply pipe 9, and the end of the slider 14 is slidably sleeved on the outer wall of the guide rod 13, and a connecting rod is fixedly connected between the slider 14 and the air supply pipe 10. Different alignments of the air inlet pipes 16 with the air inlet 15 will result in different gas flow rates. When the air inlet pipe 16 with a larger diameter is aligned with the air inlet 15, the air flow rate is small and can be selected as needed. For example, in the early stage of air replenishment, the air inlet pipe 16 with a small diameter can be used. At this time, the flow rate is fast and can quickly reach the atomizer tank 1. In the later stage of air replenishment, the air inlet pipe 16 with a large diameter can be used. At this time, the flow rate is slow and slow air replenishment can be performed, thereby avoiding the excessive flow rate causing squeezing of the previous gas and inaccurate air pressure measurement (in the early stage of air replenishment, there is less gas in the atomizer tank 1 and the squeezing effect is not obvious, so there will be no problem of inaccurate air pressure measurement). When switching different air inlet pipes 16, start the motor 11 to drive the screw 12 to rotate. Under the premise that the guide rod 13 limits the slider 14, the slider 14 moves in a straight line and drives the air supply pipe 10 to move through the connecting rod, so that different air inlet pipes 16 correspond to the air inlet 15.

[0026] Furthermore, the diameter of the air inlet 15 is larger than the diameter of all the air inlet pipes 16 , and the intervals between the air inlet pipes 16 are relatively large, so that the phenomenon of two air inlet pipes 16 being connected to the air inlet 15 will not occur.

[0027] A passive gear 23 is also installed in the equipment box 17, the outer wall of the movable plate 19 is in contact with the passive gear 23 and is provided with saw teeth meshing therewith, the driven gear 22 and the passive gear 23 are located on both sides of the movable plate 19, the upper side wall of the passive gear 23 is fixedly connected with a rotating shaft 25, a drying plate 24 is fixed in the atomizing tank 1, the upper end of the rotating shaft 25 passes through the equipment box 17, the inner top wall of the notch and the drying plate 24, and is provided with a swing rod 27 and fixedly connected thereto, and the end of the swing rod 27 is fixedly connected with a swing rod 27 that contacts the upper side wall of the drying plate 24. A sealed bearing 26 is installed at the connection between the drying plate 24 and the rotating shaft 25. The left and right movement of the moving plate 19 drives the passive gear 23 to rotate back and forth, and then the rotating shaft 25 and the rocker 27 drive the scraper 28 to reciprocate, pushing the atomized metal powder in the drying plate 24 to move, avoiding powder accumulation, pushing the powder to collapse, making the powder fully contact with the surface of the drying plate 24, achieving effective transfer of the temperature of the drying plate 24 to the metal powder, and accelerating the drying speed of the metal powder.

[0028] Furthermore, the scraper 28 may be higher than the drying plate 24 by a certain height, and the metal powder can be scraped flat during the reciprocating rotation of the scraper 28, thereby ensuring that the metal powder is dried at the same thickness and the drying efficiency can be guaranteed.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic gas supply device for a gas atomization device for preparing metal alloy powders, comprising an atomization tank (1) and a gas supply tank (2), characterized in that: The air replenishing tank (2) is fixed on the outer wall of the atomizing tank (1), and the outer walls of the atomizing tank (1) and the air replenishing tank (2) are provided with openings corresponding to the positions. A pressure sensor (3) is fixed on the inner bottom wall of the air replenishing tank (2), and the probe of the pressure sensor (3) extends through and into the atomizing tank (1). A connecting frame (4) is fixed in the air replenishing tank (2), and one end of the connecting frame (4) extends through the opening into the atomizing tank (1). A sealing mechanism is provided at the other end of the connecting frame (4), and the sealing mechanism includes a sealing plate (7) rotatably connected to the inner wall of the end of the connecting frame (4). The air replenishing tank (2 ) is fixedly connected to the inner wall of the atomizing tank (1); the driving end of the atomizing tank (5) is fixedly connected to a push plate (6) in contact with the inner walls of the ends of the two sealing plates (7); a telescopic spring (8) is fixedly connected between the other ends of the two sealing plates (7) and the inner wall of the connecting frame (4); the pressure sensor (3) is connected to the atomizing tank (1) through a controller; an air supply pipe (9) is rotatably arranged in the connecting frame (4); the air flow is uniformly supplied to the atomizing tank (1) through the rotation of the air supply pipe (9); a rubber connecting piece is fixedly connected between the end of the air supply pipe (9) and the inner wall of the end of the connecting frame (4).

2. The automatic gas supply equipment for the gas atomization equipment for preparing metal alloy powder according to claim 1, characterized in that: An air supply pipe (10) is slidably arranged inside the air supply pipe (9), an air inlet (15) is arranged on the outer wall of the air supply pipe (9), and a plurality of air inlet pipes (16) are evenly laid inside the air supply pipe (10) and arranged at intervals. The inner diameters of the plurality of air inlet pipes (16) are different. By sliding the air supply pipe (10), different ends of the air inlet pipes (16) are aligned with the air inlet (15), thereby realizing connection between the air inlet pipes (16) and the inside of the connection frame (4).

3. The automatic gas supply equipment for the gas atomization equipment for preparing metal alloy powder according to claim 2, characterized in that: A motor (11) is fixedly connected to the outer wall of the air supply pipe (9), a screw rod (12) is fixedly connected to the driving end of the motor (11), a slider (14) is threadedly connected to the outer wall of the screw rod (12), a guide rod (13) is also fixed to the outer wall of the air supply pipe (9), an end of the slider (14) is slidably sleeved on the outer wall of the guide rod (13), and a connecting rod is fixedly connected between the slider (14) and the air supply pipe (10).

4. The automatic gas supply equipment for the gas atomization equipment for preparing metal alloy powder according to claim 1, characterized in that: The outer wall of the atomizer tank (1) is provided with a notch, a device box (17) is fixed in the notch, a motor (20) is fixedly connected in the device box (17), a driving end of the motor (20) is fixedly connected to an incomplete gear (21), a driven gear (22) meshing with the incomplete gear (21) is installed in the device box (17), a guide plate (29) is fixedly connected to the inner wall of the device box (17), and an end sliding sleeve of the guide plate (29) is provided. A movable plate (19) is provided, the outer wall of the movable plate (19) is in contact with the incomplete gear (21) and the driven gear (22) and is provided with saw teeth meshing with the two. The upper side wall of the driven gear (22) is fixedly connected with a rotating rod (18). The upper end of the rotating rod (18) passes through the equipment box (17) and the air supply tank (2) in sequence and is fixedly connected to the middle part of the air supply pipe (9). A sealed bearing is installed at the connection between the air supply tank (2) and the rotating rod (18).

5. The automatic gas supply equipment for the gas atomization equipment for preparing metal alloy powder according to claim 4, characterized in that: A passive gear (23) is also installed in the equipment box (17); the outer wall of the movable plate (19) is in contact with the passive gear (23) and is provided with saw teeth meshing therewith; the driven gear (22) and the passive gear (23) are located on both sides of the movable plate (19); the upper side wall of the passive gear (23) is fixedly connected with a rotating shaft (25); a drying plate (24) is fixed in the atomizing tank (1); the upper end of the rotating shaft (25) passes through the equipment box (17), the inner top wall of the notch and the drying plate (24) in sequence, and is provided with a swing rod (27) and fixedly connected thereto; the end of the swing rod (27) is fixedly connected with a scraper (28) in contact with the upper side wall of the drying plate (24); and a sealed bearing 2 (26) is installed at the connection between the drying plate (24) and the rotating shaft (25).

6. The automatic gas supply equipment for the gas atomization equipment for preparing metal alloy powder according to claim 1, characterized in that: The diameter of the rubber connecting piece is larger than the inner diameter of the end of the connecting frame (4).

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