A rotary melting device for the production of zinc dust

Abstract

The utility model discloses a kind of rotary melting devices of zinc powder preparation, belong to zinc powder smelting device technical field, including fixed frame;Smelting cylinder, the smelting cylinder is rotatably connected at the top of fixed frame, its barrel wall interior is equipped with electric heater, the smelting cylinder top is equipped with smelting cover, the bottom of the smelting cylinder is conical;Stirring assembly, the stirring assembly is connected on smelting cover, and its stirring end is inserted into the inside of smelting cylinder;Limiting component.In the utility model, the electric heating of smelting cylinder and stirring assembly synergistic effect, cooperate the material film effect generated by rotation, increase the heating area of zinc raw material, shorten melting time, substantially improve production efficiency;Two electric telescopic rods are synchronous elongation, smelting cylinder bottom is clamped by two limiting blocks, prevent it from happening sway when stirring assembly works, two electric telescopic rods differentiation work, form unilateral support and push auxiliary when smelting cylinder is poured, make pouring motor load reduction.

Description

Technical Field

[0001] This utility model belongs to the technical field of zinc powder smelting equipment, and particularly relates to a rotary melting device for zinc powder preparation. Background Technology

[0002] In the zinc powder preparation process, the quality of the molten zinc liquid is the core factor determining the final purity, particle size, and activity of the zinc powder. The melting device, as the key equipment for converting zinc raw materials into molten zinc liquid, directly affects production efficiency and product quality. Currently, when using traditional static crucible furnaces to melt zinc raw materials, zinc powder is prone to accumulating, leading to a problem of external melting and internal solidification, which affects smelting efficiency.

[0003] In the existing technology, a dual motion structure of inner cylinder rotation and stirring shaft is used. The zinc powder is heated evenly by electric heating plate to improve smelting efficiency. However, this method cannot guarantee the stability of the smelting cylinder tilting process, which can easily cause fluctuations when the zinc liquid is tilted, affecting the quality of subsequent processes. Utility Model Content

[0004] The purpose of this invention is to provide a rotary melting device for zinc powder preparation, in order to solve the problem in traditional technology that the stability of the pouring process of the melting cylinder cannot be guaranteed, and the zinc liquid is prone to fluctuations when being poured.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A rotary melting apparatus for preparing zinc powder, comprising: Fixture; A melting cylinder, which is rotatably connected to the top of a fixed frame, has an electric heater installed inside its cylinder wall, a melting cover installed on the top of the melting cylinder, and a conical bottom. A stirring assembly, which is connected to the melting cover and whose stirring end extends into the interior of the melting cylinder; The limiting assembly includes two electric telescopic rods installed at the bottom of the fixed frame. Each of the output ends of the two electric telescopic rods is fixedly connected to a limiting block. Both limiting blocks are semi-circular. When the output ends of the two electric telescopic rods extend synchronously, the two limiting blocks form a circular limiting groove. The bottom of the melting cylinder is engaged with the limiting groove.

[0006] Preferably, a rotating ring is coaxially fixedly connected to the top of the melting cylinder, and rotating columns are fixedly connected to both sides of the rotating ring. The two rotating columns are coaxially arranged and pass through the axis of the rotating ring. Both rotating columns are rotatably connected to the top of the fixed frame.

[0007] Preferably, a motor base is fixedly connected to the side of the fixing frame, a tilting motor is installed on the motor base, and the output end of the tilting motor is fixedly connected to a rotating column on the same axis.

[0008] Preferably, the stirring assembly includes a rotary motor installed on the top of the melting cover, the output end of the rotary motor is coaxially fixedly connected to a drive shaft, the end of the drive shaft away from the rotary motor passes through the melting cover and is coaxially fixedly connected to a stirring blade, and the stirring blade is coaxially spaced with the inside of the melting cylinder.

[0009] Preferably, the tilting motor and the two electric telescopic rods are all electrically connected to a controller, which is mounted on a fixed frame and is used to control the working status of the tilting motor and the two electric telescopic rods.

[0010] Preferably, the top of the limiting block is rotatably connected to multiple rotating shafts, and guide wheels are coaxially fixedly connected to the rotating shafts. The multiple rotating shafts are evenly distributed along the top of the limiting block.

[0011] Compared with the prior art, the present invention has the following beneficial effects: In this invention, the electric heating and stirring components of the melting cylinder work together, and the film effect generated by the rotation increases the heating area of ​​the zinc raw material, shortens the melting time, and greatly improves production efficiency. The two electric telescopic rods extend synchronously and clamp the bottom of the melting cylinder through two limit blocks to prevent it from shaking when the stirring components are working. The two electric telescopic rods work differently, forming unilateral support and pushing assistance when the melting cylinder is tilted, which reduces the load on the tilting motor, extends the equipment life, and improves the stability of zinc liquid tilting. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of a rotary melting device for preparing zinc powder according to this utility model; Figure 2 This is a vertical sectional view of the melting cylinder and part of the fixing frame of a rotary melting device for preparing zinc powder according to the present invention; Figure 3 This is a schematic diagram of the limiting component of a rotary melting device for preparing zinc powder according to this utility model.

[0013] In the diagram: 1. Fixed frame; 2. Rotating column; 3. Rotating ring; 4. Melting cylinder; 5. Electric heater; 6. Melting cover; 7. Rotary motor; 8. Drive shaft; 9. Stirring blades; 10. Motor base; 11. Tilting motor; 12. Electric telescopic rod; 13. Limiting block; 14. Limiting groove; 15. Rotating shaft; 16. Guide wheel. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] Reference Figures 1-3 A rotary melting apparatus for preparing zinc powder, comprising: Fixed frame 1, which serves as the load-bearing foundation of the entire device, is welded from high-strength steel to ensure the stability of the device.

[0016] The melting cylinder 4 is rotatably connected to the top of the fixed frame 1. An electric heater 5 is installed inside the cylinder wall. A melting cover 6 is installed on the top of the melting cylinder 4. The bottom of the melting cylinder 4 is conical.

[0017] The melting cylinder 4 is the core melting container, made of a nickel-based alloy material that is resistant to high temperature and zinc liquid corrosion, ensuring efficient heat conduction. The internal electric heater 5 is a ring-shaped distribution of resistance heating wires, which heats and melts the zinc powder inside the cylinder.

[0018] A rotating ring 3 is coaxially fixedly connected to the top of the melting cylinder 4. A rotating column 2 is fixedly connected to both sides of the rotating ring 3. The two rotating columns 2 are coaxially arranged and pass through the axis of the rotating ring 3. Both rotating columns 2 are rotatably connected to the top of the fixed frame 1.

[0019] The rotating ring 3 is fixed to the melting cylinder 4 to form a rigid connection. The rotating column 2 serves as the rotating support shaft of the melting cylinder 4, and its two ends are connected to the fixed frame 1 through deep groove ball bearings to ensure smooth rotation.

[0020] A motor base 10 is fixedly connected to the side of the fixed frame 1. A tilting motor 11 is installed on the motor base 10. The output end of the tilting motor 11 is coaxially fixedly connected to a rotating column 2.

[0021] The motor base 10 provides rigid fixation for the tilting motor 11, and its position is aligned with the axis of the rotating column 2 to avoid generating additional torque during transmission. The tilting motor 11 is a servo motor, and its output end can be controlled to rotate forward and backward and adjust the speed, thereby tilting the rotating column 2 and the melting cylinder 4 as a whole, so as to pour the molten zinc liquid into the feed port of the subsequent atomization equipment in a directional manner, replacing the traditional manual tilting and improving the safety and accuracy of operation.

[0022] A stirring assembly is connected to the melting cover 6, and its stirring end extends into the interior of the melting cylinder 4.

[0023] The stirring assembly includes a rotary motor 7 installed on the top of the melting cover 6. The output end of the rotary motor 7 is coaxially fixedly connected to a drive shaft 8. The end of the drive shaft 8 away from the rotary motor 7 passes through the melting cover 6 and is coaxially fixedly connected to a stirring blade 9. The stirring blade 9 is coaxially spaced with the inside of the melting cylinder 4.

[0024] The rotary motor 7 is a variable frequency speed control motor, which drives the stirring blade 9 to rotate through the drive shaft 8. The diameter of the stirring blade 9 is slightly smaller than the inner diameter of the melting cylinder 4. When rotating, it forms an axial circulation, which makes the zinc liquid tumble up and down and avoids the accumulation of raw materials at the bottom.

[0025] The limiting assembly includes two electric telescopic rods 12 installed at the bottom of the fixed frame 1. The output ends of the two electric telescopic rods 12 are fixedly connected to limiting blocks 13. The two limiting blocks 13 are semi-circular. When the output ends of the two electric telescopic rods 12 extend synchronously, the two limiting blocks 13 form a circular limiting groove 14. The bottom of the melting cylinder 4 is engaged with the limiting groove 14.

[0026] When the device is in the melting stage, the output ends of the two electric telescopic rods 12 extend to lock the bottom of the melting cylinder 4, preventing it from shaking when the stirring assembly is working.

[0027] Two limit blocks 13 are symmetrically distributed on both sides of the output axis of the tilting motor 11.

[0028] The tilting motor 11 and the two electric telescopic rods 12 are all electrically connected to a controller. The controller is mounted on the fixed frame 1 and is used to control the working status of the tilting motor 11 and the two electric telescopic rods 12.

[0029] During the melting stage, the controller automatically locks the limit components to prevent the melting cylinder 4 from rotating. During the tilting stage, the controller controls the output end of the electric telescopic rod 12 away from the tilting side to retract, causing the limit block 13 on it to move down. The output end of the electric telescopic rod 12 on the tilting side continues to extend, causing the limit block 13 on it to move up, pushing the melting cylinder 4 upward, causing the melting cylinder 4 to tilt, reducing the workload of the tilting motor 11, making the melting cylinder 4 tilt more stably, and improving the stability of the molten zinc liquid tilting.

[0030] The top of the limiting block 13 is rotatably connected to multiple rotating shafts 15, and guide wheels 16 are coaxially fixedly connected to the rotating shafts 15. The multiple rotating shafts 15 are evenly distributed along the top of the limiting block 13.

[0031] The guide wheel 16 is made of wear-resistant ceramic material. Its top surface is slightly higher than the upper surface of the limit block 13. The limit block 13 moves upward to push the melting cylinder 4. The guide wheel 16 reduces the frictional resistance between the bottom of the melting cylinder 4 and the limit block 13, which protects the contact surface from wear and makes the tilting action of the melting cylinder 4 smoother.

[0032] During operation, the staff manually open the smelting cover 6, add the pretreated zinc raw material into the smelting cylinder 4, close the smelting cover 6 and lock it.

[0033] The controller controls the two electric telescopic rods 12 to extend synchronously, which drives the two limit blocks 13 to close and form a limit groove 14, which engages with the bottom of the melting cylinder 4 to fix the position of the melting cylinder 4.

[0034] The electric heater 5 starts working and heats up to the set temperature. At this time, the melting cylinder 4 is stationary, and the zinc raw material gradually softens under heat in the cylinder. At the same time, the rotary motor 7 works, and its output drives the drive shaft 8 and the stirring blades 9 to rotate, breaking up the semi-molten zinc material and promoting uniform melting. During the stirring process, the stirring blades 9 continuously tumble the zinc liquid to avoid local overheating and slag formation at the bottom.

[0035] After the zinc powder is melted, the staff confirms that the subsequent equipment is ready and begins the pouring operation. The controller first shuts off the stirring component and cuts off the power to the electric heater 5. According to the preset pouring direction, the controller drives the electric telescopic rods 12 on both sides to perform differentiated actions. The electric telescopic rod 12 away from the pouring side retracts, causing the corresponding limit block 13 to move down and release the support on that side. The electric telescopic rod 12 on the pouring side remains extended, and the limit block 13 continues to support the bottom of the melting cylinder 4 and pushes slightly upward with the tilting trend to form an auxiliary fulcrum.

[0036] At the same time, the tilting motor 11 starts, and the rotating column 2 drives the smelting cylinder 4 to tilt slowly around the axis. The conical structure at the bottom of the smelting cylinder 4 guides the zinc liquid to flow to the outlet. The guide wheel 16 at the top of the limiting block 13 reduces friction and ensures smooth tilting.

[0037] After the zinc liquid is discharged, the controller drives the tilting motor 11 to reverse, which in turn drives the smelting cylinder 4 to return to a horizontal state.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A rotary melting device for preparing zinc powder, characterized in that, include: Fixture (1); A melting cylinder (4) is rotatably connected to the top of a fixed frame (1), and an electric heater (5) is installed inside its cylinder wall. A melting cover (6) is installed on the top of the melting cylinder (4), and the bottom of the melting cylinder (4) is conical. A stirring assembly is connected to the melting cover (6), and its stirring end extends into the interior of the melting cylinder (4); The limiting component includes two electric telescopic rods (12) installed at the bottom of the fixed frame (1). The output ends of the two electric telescopic rods (12) are fixedly connected to limiting blocks (13). The two limiting blocks (13) are semi-circular. When the output ends of the two electric telescopic rods (12) extend synchronously, the two limiting blocks (13) form a circular limiting groove (14). The bottom of the melting cylinder (4) is engaged with the limiting groove (14).

2. The rotary melting apparatus for preparing zinc powder according to claim 1, characterized in that, The top of the melting cylinder (4) is coaxially fixedly connected to a rotating ring (3), and rotating columns (2) are fixedly connected to both sides of the rotating ring (3). The two rotating columns (2) are coaxially arranged and pass through the axis of the rotating ring (3). The two rotating columns (2) are rotatably connected to the top of the fixed frame (1).

3. The rotary melting apparatus for preparing zinc powder according to claim 2, characterized in that, The fixed frame (1) is fixedly connected to a motor base (10) on its side. A tilting motor (11) is installed on the motor base (10). The output end of the tilting motor (11) is fixedly connected to a rotating column (2) on the same axis.

4. The rotary melting apparatus for preparing zinc powder according to claim 1, characterized in that, The stirring assembly includes a rotary motor (7) installed on the top of the melting cover (6). The output end of the rotary motor (7) is coaxially fixedly connected to a drive shaft (8). The end of the drive shaft (8) away from the rotary motor (7) passes through the melting cover (6) and is coaxially fixedly connected to a stirring blade (9). The stirring blade (9) is coaxially spaced with the inside of the melting cylinder (4).

5. The rotary melting apparatus for preparing zinc powder according to claim 3, characterized in that, The tilting motor (11) and the two electric telescopic rods (12) are all electrically connected to a controller. The controller is installed on the fixed frame (1) and is used to control the working status of the tilting motor (11) and the two electric telescopic rods (12).

6. The rotary melting apparatus for preparing zinc powder according to claim 1, characterized in that, The top of the limiting block (13) is rotatably connected to multiple rotating shafts (15), and a guide wheel (16) is coaxially fixedly connected to the rotating shaft (15). The multiple rotating shafts (15) are evenly distributed along the top of the limiting block (13).

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