A high-quality zinc powder production device and a process method thereof

Abstract

A high-quality zinc powder production device and process method thereof. It relates to the field of zinc powder production. It comprises a heating furnace, the heating furnace comprises a furnace body and a melting pot and a vaporization pot arranged in the furnace body, the melting pot is used for melting raw materials in solid state, the vaporization pot is used for vaporizing raw materials in molten state, the top of the melting pot is provided with a movable sleeve outside, the movable sleeve can reciprocate along the axial direction of the melting pot, the bottom of the movable sleeve is provided with an elastic support assembly, the elastic support assembly is used for supporting and resetting the movable sleeve; the top of the melting pot is provided with a slag removal plate, the outer side of the furnace body is provided with a driving mechanism, the bottom of the slag removal plate is attached to the top of the movable sleeve, and the driving mechanism is used for driving the axial or radial movement of the slag removal plate and the movable sleeve. Under the reciprocating movement and the pressing action of the slag removal plate, the removal efficiency of the dross is effectively improved, and safety accidents are avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of zinc powder production, in particular to a high-quality zinc powder production device and process method thereof. BACKGROUND

[0002] Metallic zinc powder is dark gray, has good reducing property, rust prevention effect and atmospheric corrosion resistance, can be used as pigment, has very strong hiding power, and is often used to manufacture rust-proof paint, anti-corrosion coating, strong reducing agent, etc. The conventional production method of metallic zinc powder is distillation method, specifically, solid zinc is heated to 1250-1350 DEG C to become zinc vapor, and then condensed by a condenser to become metallic zinc powder.

[0003] A continuous zinc powder vapor distillation equipment is disclosed in a Chinese patent document with publication number CN218202981U, and specifically discloses a feeding machine for adding zinc powder raw materials to a melting furnace; a melting furnace for melting zinc powder raw materials from the feeding machine; a gasification furnace for gasifying materials from the melting furnace; a condensing chamber for condensing gaseous materials from the gasification furnace; and a slag removal system for removing slag in the melting furnace. The patent can realize continuous processing, has high processing efficiency and low cost.

[0004] In the above patent, the slag removal system mainly relies on a slag grabber to remove the slag, and the slag grabber is easy to bring out zinc liquid in a molten state during the process of grabbing the slag, thereby causing pollution to the operating environment, and even causing safety accidents due to the splashing of zinc liquid. Moreover, the efficiency of reciprocating grabbing in the vertical direction is poor, and it is difficult to realize rapid removal of the slag. SUMMARY

[0005] In order to overcome the deficiencies of the prior art, the present application provides a high-quality zinc powder production device and process method thereof.

[0006] In a first aspect, the present application provides a high-quality zinc powder production device, which adopts the following technical scheme:

[0007] A high-quality zinc powder production device, comprising a heating furnace, wherein the heating furnace comprises a furnace body, a melting pot and a vaporization pot arranged in the furnace body, the melting pot is used for melting raw materials in a solid state, and the vaporization pot is used for vaporizing raw materials in a molten state, a movable sleeve is arranged on the outside of the top of the melting pot, the movable sleeve can move reciprocatingly along the axial direction of the melting pot, an elastic support assembly is arranged at the bottom of the movable sleeve, and the elastic support assembly is used for supporting and resetting the movable sleeve.

[0008] A slag removal plate is arranged above the melting pot, a driving mechanism is arranged on the outside of the furnace body, the bottom of the slag removal plate is attached to the top of the movable sleeve, and the driving mechanism is used for driving the axial or radial movement of the slag removal plate and the movable sleeve.

[0009] By adopting the above technical solution, the raw material is first melted in the melting pot, and the melting process will produce scum. Under the horizontal driving action of the drive mechanism, the scum scraper can sweep across the top of the movable sleeve and scrape off the scum located at the top. Under the vertical driving action of the drive mechanism, the movable sleeve is pressed down, the liquid level of the molten raw material rises, and the scum scraper can scrape off the scum again, effectively improving the scum scraping efficiency.

[0010] Optionally, the top of the furnace body is provided with a cover, which covers the top of the gasifier. The gasifier and the melting pot are interconnected. A burner is provided on the outer wall of the furnace body, which is used to heat the melting pot and the gasifier.

[0011] By adopting the above technical solutions, the burner head can provide heat for melting the raw materials and vaporizing the melted materials. The vaporized raw materials flow to the subsequent equipment under the collection of the cover, thereby completing the production of zinc powder.

[0012] Optionally, the drive mechanism includes a bracket and a linear slide mounted on the bracket, the bracket being mounted on the outside of the furnace body;

[0013] The linear slide includes a mounting rod, a motor, a lead screw, and a connecting rod. The mounting rod extends radially along the melting pot. A mounting groove is provided on the side wall of the mounting rod. The lead screw passes through the mounting groove. The motor is used to drive the lead screw to rotate. One end of the connecting rod is inserted into the mounting groove and is threadedly connected to the lead screw. The other end of the connecting rod extends to the top of the melting pot.

[0014] The other end of the connecting rod is provided with a hydraulic rod, and the push rod of the hydraulic rod is connected to the slag scraper. The hydraulic rod is used to push the slag scraper to move along the axial direction of the melting pot.

[0015] By adopting the above technical solution, when the motor rotates in the forward direction, the slag scraper can move in the forward direction, and when the motor rotates in the reverse direction, the slag scraper can rotate in the reverse direction, thereby realizing the reciprocating slag scraping operation.

[0016] Optionally, the width of the scraper is greater than the inner diameter of the movable sleeve, and the thickness of the scraper is less than the wall thickness of the movable sleeve.

[0017] By adopting the above technical solutions, it is ensured that the scraper blade can always maintain a state of mutual pressure with the movable sleeve, avoiding the need for the scraper blade to repeatedly dock with the movable sleeve, thus improving the scraping efficiency.

[0018] Optionally, the radial cross-section of the connecting rod is rectangular, and the inner wall of the mounting groove fits against the outer wall of the connecting rod;

[0019] The connecting rod has a threaded hole at one end located in the mounting groove, and the lead screw is adapted to pass through the threaded hole.

[0020] By adopting the above technical solution, the connecting rod is fitted into the mounting groove, and the screw and the threaded hole are connected by threads. In this way, the mounting rod with the mounting groove can limit the connecting rod, ensuring that after the screw rotates, the connecting rod can move along the length of the screw, thereby driving the scraper to move radially back and forth along the movable sleeve.

[0021] Optionally, a base is provided below the furnace body, the support is provided on the base, and the base is also provided with several support legs for supporting the furnace body, so that the furnace body is in a suspended state;

[0022] At least one pair of the elastic support components are disposed below the movable sleeve. The elastic support component includes a support rod and a spring seat. The spring seat is disposed on the base. One end of the support rod is connected to the bottom of the movable sleeve, and the other end of the support rod is connected to the top of the spring seat.

[0023] By adopting the above technical solution, the spring seat is placed at the bottom of the furnace body, which reduces the impact of the high temperature inside the furnace body on the spring force inside the spring seat, thereby ensuring dynamic support for the movable sleeve through the cooperation of the spring seat and the support rod.

[0024] Optionally, the top of the furnace body is provided with a first accommodating cavity and a second accommodating cavity, which are connected by a heating channel. The burner head passes through the heating channel. The first accommodating cavity is used to place the melting pot, and the second accommodating cavity is used to place the vaporizing pot.

[0025] The top of the first accommodating cavity is provided with a movable cavity, the movable sleeve is disposed in the movable cavity and can slide in the movable cavity, the connection between the movable cavity and the first accommodating cavity is provided with a stepped surface, a limiting tube is provided on the stepped surface, and the support rod is adapted to pass through the limiting tube.

[0026] By adopting the above technical solutions, the movable sleeve can slide up and down in the movable cavity, and the support rod can also slide up and down smoothly in the limiting tube, thereby playing a supporting and limiting role for the movable sleeve.

[0027] Optionally, the inner wall of the movable sleeve is provided with an annular first groove, and the top of the melting pot is provided with an annular second groove. A first retaining ring is adapted to be fitted in the first groove, and a second retaining ring is adapted to be fitted in the second groove. An impermeable membrane is provided between the movable sleeve and the melting pot. One end of the impermeable membrane is wrapped around the first retaining ring, and the other end of the impermeable membrane is wrapped around the second retaining ring.

[0028] By adopting the above technical solutions, the geomembrane is reliably fixed, ensuring that the molten raw material will not seep out from the gap between the movable sleeve and the melting pot during the up-and-down sliding process of the movable sleeve.

[0029] Optionally, the top of the furnace body is provided with two material guide grooves, which are symmetrically arranged on both sides of the melting pot. The height of the end of the material guide groove closer to the melting pot is greater than the height of the end of the material guide groove farther from the melting pot, and the width of the material guide groove is greater than the outer diameter of the movable sleeve.

[0030] By adopting the above technical solutions, the scum scraped off by the scraper can fall completely into the feed chute, making it easy to collect the scum.

[0031] Secondly, this application provides a high-quality zinc powder production process, which is implemented using the following technical solution:

[0032] A high-quality zinc powder production process, applied to a high-quality zinc powder production apparatus, includes the following steps:

[0033] S1. Place the raw materials into the melting pot, turn on the burner, and heat the melting pot and gasifier.

[0034] S2. The electric motor drives the lead screw to rotate and moves the scraper horizontally along the radial direction of the movable sleeve to the top side of the movable sleeve. The hydraulic rod drives the scraper vertically along the axial direction of the movable sleeve to contact the top of the movable sleeve.

[0035] S3. The motor drives the lead screw to rotate again, causing the scraper to move from one side of the top of the movable sleeve to the other side of the top of the movable sleeve, completing one scraping operation.

[0036] S4. The hydraulic rod pushes the scraper blade, causing the scraper blade to push the movable sleeve downward. At this time, the elastic support component is in a compressed state. Then, the motor drives the scraper blade to move from the other side of the top of the movable sleeve to the top side of the movable sleeve, completing one scraping operation.

[0037] S5. Repeat step S4 until the scum in the melting pot is completely removed. Finally, transfer the raw materials in the melting pot to the vaporization pot.

[0038] By adopting the above technical solutions, the slag generated during the melting process can be efficiently removed, thereby improving the quality of the finished zinc powder product.

[0039] Compared with the prior art, this application has the following beneficial effects:

[0040] 1. The horizontal driving action of the scraper plate by the drive mechanism realizes the scraping operation, and the vertical driving action of the scraper plate by the drive mechanism realizes the downward operation of the movable sleeve, thereby realizing the adjustment of the liquid level of the raw material. In this way, the scraping efficiency of the scum is effectively improved by the reciprocating movement and downward action of the scraper plate, and the occurrence of safety accidents is avoided.

[0041] 2. By placing the spring seat at the bottom of the furnace body, the high temperature of the furnace body can prevent the spring inside the spring seat from failing, thereby ensuring that the scraper can progressively press down on the movable sleeve. Attached Figure Description

[0042] Figure 1 This is a schematic perspective view of this application;

[0043] Figure 2 This is a reference diagram showing the separation of the furnace body, melting pot, and vaporizing pot;

[0044] Figure 3 This is a cross-sectional view of the internal structure of the furnace body;

[0045] Figure 4 yes Figure 3 Enlarged structural reference diagram at point A;

[0046] Figure 5 It is a schematic three-dimensional view of the first retaining ring, the geomembrane, and the second retaining ring;

[0047] Figure 6 Reference diagram showing the assembly state of the melting pot and support components;

[0048] Figure 7 This is a reference diagram showing the positional status of the furnace body and the drive mechanism;

[0049] In the diagram: 1. Furnace body; 11. Cover; 12. Burner head; 13. First receiving cavity; 14. Second receiving cavity; 15. Heating channel; 16. Movable cavity; 160. Stepped surface; 17. Material guide chute;

[0050] 2. Melting pot; 21. Second groove; 22. Second retaining ring;

[0051] 3. Gasification kettle;

[0052] 4. Movable sleeve; 41. First groove; 42. First retaining ring;

[0053] 5. Elastic support assembly; 51. Support rod; 52. Spring seat; 53. Limiting tube;

[0054] 6. Slag scraper;

[0055] 7. Drive mechanism; 71. Bracket; 72. Mounting rod; 720. Mounting slot; 73. Motor; 74. Lead screw; 75. Connecting rod; 750. Threaded hole; 76. Hydraulic rod;

[0056] 8. Base; 80. Support legs;

[0057] 9. Geomembrane. Detailed Implementation

[0058] Below, in conjunction with the appendix Figures 1-7 The present application will be further described in detail below with reference to specific implementation methods. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0059] This embodiment discloses a high-quality zinc powder production apparatus.

[0060] Figure 1 This is a schematic perspective view of this application. Figure 2 This is a reference diagram showing the separation of the furnace body, melting pot, and vaporizing pot. (See also...) Figure 1 and Figure 2 A high-quality zinc powder production apparatus includes a heating furnace, which comprises a base 8 and a furnace body 1. The bottom of the furnace body 1 is provided with several support legs 80, which suspend the furnace body 1 in a suspended state. A first accommodating cavity 13 and a second accommodating cavity 14 are provided at the top of the furnace body 1. A melting pot 2 is placed in the first accommodating cavity 13, and a vaporizing pot 3 is placed in the second accommodating cavity 14. The first accommodating cavity 13 and the second accommodating cavity 14 are connected by a heating channel 15. A burner head 12 is inserted through the heating channel 15, so that the heat released by the burner head 12 can be transferred to the first accommodating cavity 13 to heat the melting pot 2, and also to the second accommodating cavity 14 to heat the vaporizing pot 3. By adjusting the installation position of the burner head 12, reliable control is achieved over the materials conveyed to the melting pot 2 and the vaporization pot 3. In this way, the melting pot 2 heats the solid raw materials to a molten state, and when the molten raw materials are transferred to the vaporization pot 3, the higher temperature of the vaporization pot 3 heats the molten raw materials to a gaseous state. Furthermore, a cover 11 is installed on top of the vaporization pot 3. Through the guiding action of the cover 11, the gaseous raw materials can be transferred to subsequent devices, thereby efficiently completing the production of zinc powder. The transfer of raw materials between the melting pot 2 and the vaporization pot 3 can be achieved by installing an openable and closable pipe between the two pots, or by tilting or suction.

[0061] Figure 3 This is a cross-sectional view of the internal structure of the furnace body. Figure 4 yes Figure 3 A magnified structural reference diagram at point A. (See also...) Figure 3 and Figure 4A movable cavity 16 is provided at the top of the furnace body 1. The movable cavity 16 is connected to the first accommodating cavity 13 and is located above the first accommodating cavity 13. The inner diameter of the movable cavity 16 is larger than the inner diameter of the first accommodating cavity 13. Thus, a stepped surface 160 is formed at the connection between the first accommodating cavity 13 and the movable cavity 16. A movable sleeve 4 is appropriately placed inside the movable cavity 16. The height of the movable sleeve 4 is less than the depth of the movable cavity 16. The movable sleeve 4 is fitted on the outer wall of the melting pot 2. The outer wall of the melting pot 2 is in contact with the inner wall of the first accommodating cavity 13. The outer wall of the movable sleeve 4 is in contact with the inner wall of the movable cavity 16. The lower part of the inner wall of the movable sleeve 4 is in contact with the upper part of the inner wall of the melting pot 2. That is to say, the movable sleeve 4 is fitted on the upper part of the melting pot 2, and the opening of the melting pot 2 is located inside the movable sleeve 4. Furthermore, the inner wall of the movable sleeve 4 is provided with an annular first groove 41, and the top of the melting pot 2 is provided with an annular second groove 21. A first retaining ring 42 is adapted to be fitted in the first groove 41, and a second retaining ring 22 is adapted to be fitted in the second groove 21. An impermeable membrane 9 is provided between the movable sleeve 4 and the melting pot 2. One end of the impermeable membrane 9 is wrapped around the first retaining ring 42, and the other end of the impermeable membrane 9 is wrapped around the second retaining ring 22.

[0062] Figure 5 This is a schematic three-dimensional diagram of the first retaining ring, the geomembrane, and the second retaining ring. (See also...) Figure 5 and combined Figure 4 When installing the geomembrane 9, first wrap both ends of the geomembrane 9 around the first retaining ring 42 and the second retaining ring 22 respectively. Then, insert the first retaining ring 42 into the first groove 41 and the second retaining ring 22 into the second groove 21. In this way, the geomembrane 9 will cover the gap between the movable sleeve 4 and the melting pot 2, thereby preventing the molten raw material from seeping out from the gap. Moreover, after installation, the geomembrane 9 can be in a pleated state to ensure that the geomembrane 9 will not be damaged during the up and down movement of the movable sleeve 4.

[0063] Figure 6 Reference diagram showing the assembly state of the melting pot and support components. (See also...) Figure 6 and combined Figure 3The furnace body 1 is also provided with at least one pair of elastic support components 5. The pair of elastic support components 5 are symmetrically arranged on both sides of the movable sleeve 4. In this way, the elastic support components 5 can support the movable sleeve 4 more evenly. Specifically, the elastic support component 5 includes a support rod 51, a limiting tube 53 and a spring seat 52. A through hole extending downward and penetrating the furnace body 1 is provided at the stepped surface 160. The limiting tube 53 is adapted to be installed in the through hole, and the support rod 51 is inserted into the limiting tube 53. The spring seat 52 is set at the top of the base 8 and located below the limiting tube 53. One end of the support rod 51 is connected to the bottom of the movable sleeve 4, and the other end of the support rod 51 is connected to the top of the spring seat 52. In this way, under the support of the spring seat 52, the movable sleeve 4 is in a fixed state. After the movable sleeve 4 is pressed down, it can slide downward through the compression of the spring seat 52.

[0064] Figure 7 This is a reference diagram showing the positional status of the furnace body and the drive mechanism. (See also...) Figure 7 and combined Figure 1 A drive mechanism 7 is provided on the outside of the furnace body 1, and a scraper plate 6 is provided above the furnace body 1. The drive mechanism 7 includes a bracket 71 and a linear slide table mounted on the bracket 71. The bracket 71 is mounted on the base 8 and on the outside of the furnace body 1. The linear slide table includes a mounting rod 72, a motor 73, a lead screw 74, and a connecting rod 75. The mounting rod 72 extends radially along the melting pot 2, and a mounting groove 720 is provided on the side wall of the mounting rod 72. The lead screw 74 passes through the mounting groove 720, and the motor 73 is used to drive the lead screw 74 to rotate. The connecting rod 75 has a rectangular radial cross-section. One end of the connecting rod 75 is inserted into the mounting groove 720 and fits against the inner wall of the mounting groove 720. In this way, the connecting rod 75 can only slide within the mounting groove 720 and cannot rotate within the mounting groove 720. At the same time, one end of the connecting rod 75 is provided with a threaded hole 750, and the lead screw 74 is adapted to be screwed into the threaded hole 750. In this way, a threaded connection is formed between the lead screw 74 and the connecting rod 75. A hydraulic rod 76 is provided at the end of the connecting rod 75 away from the mounting rod 72. The push rod of the hydraulic rod 76 is connected to the slag scraper 6. The hydraulic rod 76 is used to push the slag scraper 6 to move along the axial direction of the melting pot 2.

[0065] During the process of raw materials being added to the melting pot 2 and melting into a molten state, scum will be continuously generated and will float on top of the raw materials. By adding sufficient raw materials, the liquid level of the raw materials can be controlled so that the height of the scum is slightly higher than the height of the movable sleeve 4. That is to say, after the raw materials are melted, the liquid level of the raw materials is not higher than the top height of the movable sleeve 4, while the uppermost part of the piled scum can be higher than the top height of the movable sleeve 4. When all the raw materials are melted and there is a lot of scum, the motor 73 drives the lead screw 74 to rotate, thereby realizing the radial movement of the connecting rod 75 along the melting pot 2, which also drives the slag scraper 6 to move synchronously. When the slag scraper 6 moves to one side above the movable sleeve 4, the motor 73 stops rotating, and then the push rod of the hydraulic rod 76 pushes the slag scraper 6 downward, so that the slag scraper 6 can fit against the top of the movable sleeve 4. After the drive mechanism 7 has completed the initial position adjustment of the scraper plate 6, the scraper plate 6 is only in contact with the outer edge of the top side of the movable sleeve 4. At this time, the motor 73 drives the scraper plate 6 to move again, so that the scraper plate 6 can move from the top side of the movable sleeve 4 to the other side of the top of the scraper plate 6. During this process, the scum at the top can be scraped off by the scraper plate 6, achieving efficient removal of scum.

[0066] After the scraper plate 6 moves from one side of the top of the movable sleeve 4 to the other side, it completes one scraping operation. Then, the hydraulic rod 76 drives the movable sleeve 4 downwards a certain distance. At this time, the liquid level of the molten material is closer to the top of the movable sleeve 4, allowing some of the scum to rise above the height of the scraper plate 6. The motor 73 drives the scraper plate 6 again, moving it from the other side of the top of the movable sleeve 4 to the top side, completing another scraping operation. Thus, after each scraping operation, a downward pressure is applied to the scraper plate 6, creating pressure on the movable sleeve 4. This allows the liquid level of the molten material to gradually approach the top of the movable sleeve 4, improving slag removal efficiency while preventing excessive scum overflow or material carryover, thus avoiding safety hazards. During the downward pressure on the movable sleeve 4, the spring seat 52 is gradually compressed. After slag removal is complete, the release of energy by the spring seat 52 allows the movable sleeve 4 to return to its original position. Furthermore, under the protection and isolation provided by the geomembrane 9, the raw materials will not leak.

[0067] The width of the scraper 6 is greater than the inner diameter of the movable sleeve 4, and the thickness of the scraper 6 is less than the wall thickness of the movable sleeve 4. In this way, the scraper 6 is flat and long, which ensures that the entire movable sleeve 4 can be covered in one scraping. The smaller thickness of the scraper 6 and the larger wall thickness of the movable sleeve 4 ensure that after the scraper 6 has finished scraping the slag, it can still maintain a close fit with the top of the movable sleeve 4, preventing the movable sleeve 4 from automatically resetting under the action of the spring seat 52 before the slag removal operation is completed. Furthermore, the top of the furnace body 1 is provided with two guide troughs 17, which are symmetrically arranged on both sides of the melting pot 2. The height of the end of the guide trough 17 closer to the melting pot 2 is greater than the height of the end of the guide trough 17 farther from the melting pot 2, and the width of the guide trough 17 is greater than the outer diameter of the movable sleeve 4. In this way, the slag scraped by the scraper 6 can fall completely into the guide trough 17 and slide down along the guide trough 17 to the outside of the furnace body 1, which facilitates the collection of slag and prevents pollution of the operating environment.

[0068] This embodiment also discloses a high-quality zinc powder production process.

[0069] A high-quality zinc powder production process, applied to a high-quality zinc powder production apparatus, includes the following steps:

[0070] S1. Place the raw material into the melting pot 2, turn on the burner head 12, and heat the melting pot 2 and the gasifier.

[0071] S2. The motor 73 drives the lead screw 74 to rotate and drive the scraper 6 to move horizontally along the radial direction of the movable sleeve 4 to the top side of the movable sleeve 4. The hydraulic rod 76 drives the scraper 6 to move vertically along the axial direction of the movable sleeve 4 until it contacts the top of the movable sleeve 4.

[0072] S3, the motor 73 drives the lead screw 74 to rotate again, so that the scraper 6 moves from one side of the top of the movable sleeve 4 to the other side of the top of the movable sleeve 4, completing one scraping operation;

[0073] S4, the hydraulic rod 76 pushes the scraper 6, causing the scraper 6 to push the movable sleeve 4 downward. At this time, the elastic support component 5 is in a compressed state. Then the motor 73 drives the scraper 6 to move from the other side of the top of the movable sleeve 4 to the top side of the movable sleeve 4, completing one scraping operation.

[0074] S5. Repeat step S4 until the scum in the melting pot 2 is completely removed. Finally, transfer the raw materials in the melting pot 2 to the vaporizing pot 3.

[0075] The above embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of protection of this application. Any non-substantial changes and substitutions made by those skilled in the art based on this application shall fall within the scope of protection claimed by this application.

Claims

1. A high-quality zinc powder production apparatus, comprising a heating furnace, the heating furnace comprising a furnace body (1) and a melting pot (2) and a vaporization pot (3) disposed within the furnace body (1), the melting pot (2) being used to melt solid raw materials, and the vaporization pot (3) being used to vaporize molten raw materials, characterized in that, A movable sleeve (4) is fitted on the outer side of the top of the melting pot (2). The movable sleeve (4) can reciprocate along the axial direction of the melting pot (2). An elastic support component (5) is provided at the bottom of the movable sleeve (4). The elastic support component (5) is used to support and reset the movable sleeve (4). A slag scraper (6) is provided above the melting pot (2). A drive mechanism (7) is provided on the outer side of the furnace body (1). The bottom of the slag scraper (6) is in contact with the top of the movable sleeve (4). The drive mechanism (7) is used to drive the slag scraper (6) and the movable sleeve (4) to move axially or radially. The drive mechanism (7) includes a bracket (71) and a linear slide table mounted on the bracket (71). The bracket (71) is mounted on the outside of the furnace body (1). The linear slide table includes a mounting rod (72), a motor (73), a lead screw (74), and a connecting rod (75). The mounting rod (72) extends radially along the melting pot (2). The side wall of the mounting rod (72) is provided with a mounting groove (720). The lead screw (74) passes through the mounting groove (720). The motor (75) is connected to the furnace body (1). 3) For driving the lead screw (74) to rotate, one end of the connecting rod (75) is inserted into the mounting groove (720) and connected to the lead screw (74) by a thread, and the other end of the connecting rod (75) extends to the top of the melting pot (2); the other end of the connecting rod (75) is provided with a hydraulic rod (76), the push rod of the hydraulic rod (76) is connected to the slag scraper (6), and the hydraulic rod (76) is used to push the slag scraper (6) to move along the axial direction of the melting pot (2).

2. The high-quality zinc powder production apparatus according to claim 1, characterized in that, The top of the furnace body (1) is provided with a cover (11), which covers the top of the gasifier. The gasifier and the melting pot (2) are interconnected. The outer wall of the furnace body (1) is provided with a burner (12), which is used to heat the melting pot (2) and the gasifier.

3. The high-quality zinc powder production apparatus according to claim 1, characterized in that, The width of the scraper (6) is greater than the inner diameter of the movable sleeve (4), and the thickness of the scraper (6) is less than the wall thickness of the movable sleeve (4).

4. The high-quality zinc powder production apparatus according to claim 1, characterized in that, The radial cross-section of the connecting rod (75) is rectangular, and the inner wall of the mounting groove (720) fits against the outer wall of the connecting rod (75); The connecting rod (75) has a threaded hole (750) at one end located in the mounting groove (720), and the lead screw (74) is adapted to pass through the threaded hole (750).

5. A high-quality zinc powder production apparatus according to claim 3, characterized in that, The furnace body (1) is provided with a base (8) below it, the bracket (71) is provided on the base (8), and the base (8) is also provided with several support legs (80) for supporting the furnace body (1). The furnace body (1) is in a suspended state. At least one pair of the elastic support components (5) are disposed below the movable sleeve (4). The elastic support component (5) includes a support rod (51) and a spring seat (52). The spring seat (52) is disposed on the base (8). One end of the support rod (51) is connected to the bottom of the movable sleeve (4), and the other end of the support rod (51) is connected to the top of the spring seat (52).

6. The high-quality zinc powder production apparatus according to claim 5, characterized in that, The top of the furnace body (1) is provided with a first accommodating cavity (13) and a second accommodating cavity (14). The first accommodating cavity (13) and the second accommodating cavity (14) are connected by a heating channel (15). The burner head (12) passes through the heating channel (15). The first accommodating cavity (13) is used to place the melting pot (2), and the second accommodating cavity (14) is used to place the vaporizing pot (3). The top of the first accommodating cavity (13) is provided with a movable cavity (16), the movable sleeve (4) is provided in the movable cavity (16) and can slide in the movable cavity (16), the movable cavity (16) and the first accommodating cavity (13) are provided with a stepped surface (160), the stepped surface (160) is provided with a limiting tube (53), and the support rod (51) is adapted to pass through the limiting tube (53).

7. A high-quality zinc powder production apparatus according to claim 5, characterized in that, The inner wall of the movable sleeve (4) is provided with an annular first groove (41), and the top of the melting pot (2) is provided with an annular second groove (21). A first retaining ring (42) is adapted to be fitted in the first groove (41), and a second retaining ring (22) is adapted to be fitted in the second groove (21). A geomembrane (9) is provided between the movable sleeve (4) and the melting pot (2). One end of the geomembrane (9) is wrapped around the first retaining ring (42), and the other end of the geomembrane (9) is wrapped around the second retaining ring (22).

8. A high-quality zinc powder production apparatus according to claim 6, characterized in that, The top of the furnace body (1) is provided with two material guide grooves (17), which are symmetrically arranged on both sides of the melting pot (2). The height of the end of the material guide groove (17) closer to the melting pot (2) is greater than the height of the end of the material guide groove (17) further away from the melting pot (2), and the width of the material guide groove (17) is greater than the outer diameter of the movable sleeve (4).

9. A high-quality zinc powder production process, applied to the high-quality zinc powder production apparatus described in claim 5, characterized in that, Includes the following steps: S1. Place the raw material into the melting pot (2), turn on the burner (12), and heat the melting pot (2) and the gasifier. S2. The motor (73) drives the lead screw (74) to rotate and drives the scraper (6) to move horizontally along the radial direction of the movable sleeve (4) to the top side of the movable sleeve (4). The hydraulic rod (76) drives the scraper (6) to move vertically along the axial direction of the movable sleeve (4) to contact the top of the movable sleeve (4). S3. The motor (73) drives the lead screw (74) to rotate again, so that the scraper (6) moves from one side of the top of the movable sleeve (4) to the other side of the top of the movable sleeve (4), completing one scraping operation. S4. The hydraulic rod (76) pushes the scraper (6), causing the scraper (6) to push the movable sleeve (4) downward. At this time, the elastic support assembly (5) is in a compressed state. Then the motor (73) drives the scraper (6) to move from the top of the movable sleeve (4) to the top of the movable sleeve (4) to complete one scraping operation. S5. Repeat step S4 until the scum in the melting pot (2) is completely removed. Finally, transfer the raw materials in the melting pot (2) to the vaporizing pot (3) to complete the process.

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