A feeding device for antimony smelting

Abstract

The application belongs to the field of antimony smelting, in particular to a feeding device for antimony smelting, which comprises a base, the top of the base is fixedly connected with a conveying table, a plurality of groups of rollers are connected with a conveying belt in the conveying table, the top of the conveying table is fixedly connected with a discharging bin, a discharging assembly is arranged in the discharging bin, the pressure applied by the discharging bin to the limiting block is gradually increased by continuously adding crude antimony into the discharging bin, when the weight of the crude antimony in the discharging bin and the discharging bin is greater than the supporting force of the limiting block, the limiting block will be gradually extruded into the limiting groove by the discharging bin, then the discharging bin will move to the side close to the melt and discharge, since the crude antimony in the discharging bin gradually moves downward and the distance between the crude antimony and the high-temperature melt decreases, when the crude antimony falls into the high-temperature melt, the melt is not easy to be sputtered, preventing the high-temperature melt from being sputtered onto the furnace wall to generate a large amount of smoke containing certain toxicity, reducing the threat to the personal health of the workers.

Description

Technical Field

[0001] This invention belongs to the field of antimony smelting, specifically a feeding device for antimony smelting. Background Technology

[0002] Antimony is a gray metal with a silvery luster. It is obtained by removing impurities from crude antimony through smelting. There are two types of refining methods for crude antimony: pyrometallurgical and electrolytic. Pyrometallurgical refining is the most widely used refining method in industry, and it is mainly carried out in reverberatory furnaces and short-drum rotary furnaces.

[0003] Antimony needs to be filtered out during smelting, so raw materials need to be added multiple times. Because the temperature is too high during the smelting process, a feeding device is usually used for feeding. A common feeding device consists of a feeding rack and a conveyor belt. After the worker puts the crude antimony on the conveyor belt, the conveyor belt will carry the crude antimony to the top of the reverberatory furnace for feeding.

[0004] Existing feeding devices typically transport crude antimony to the top of the furnace and then directly feed it into the furnace. Because the furnace top is far from the high-temperature molten material inside the furnace, when the crude antimony falling from the furnace top comes into contact with the high-temperature molten material, some of the molten material is subjected to a high impact and splashes onto the furnace wall, resulting in a large amount of smoke. Since antimony itself contains a certain degree of toxicity, the smoke it produces is also toxic. A large amount of smoke will affect the workshop environment and threaten the health of the workers.

[0005] Therefore, the present invention provides a feeding device for antimony smelting. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this invention to solve its technical problem is as follows: An antimony smelting feeding device of this invention includes a base, a conveyor platform fixedly connected to the top of the base, a conveyor belt connected to the conveyor platform via multiple sets of rollers, a feeding bin fixedly connected to the top of the conveyor platform, a feeding assembly installed inside the feeding bin for transporting and feeding crude antimony conveyed to the furnace top into the furnace, a feeding box installed inside the feeding bin, a crushing bin fixedly connected to the top of the side of the conveyor platform away from the feeding bin, a crushing assembly installed inside the crushing bin for crushing the crude antimony, and multiple sets of casters fixedly connected to the lower surface of the base. During operation, workers first add crude antimony into the crushing chamber. The crushing components inside the chamber crush the crude antimony, breaking down larger pieces into smaller ones. The smaller pieces are then conveyed to the top of the furnace by a conveyor belt and enter the feeding hopper. The feeding components in the feeding hopper move the crushed antimony towards the bottom of the furnace, bringing it closer to the molten metal surface. This reduces the distance between the crude antimony and the high-temperature molten metal, making it less likely for the molten metal to splash when it falls into the furnace. This prevents the high-temperature molten metal from splashing onto the furnace wall and generating large amounts of toxic fumes, thus reducing the threat to the health of the workers.

[0008] Preferably, the feeding assembly includes a roller fixedly connected to the top of the feeding hopper. The roller is fixedly connected to the output shaft of an external drive motor. A main rope is wound around the outer circumference of the roller and extends into the feeding hopper. Four sets of auxiliary ropes are fixedly connected to the bottom of the main rope, and a feeding box is fixedly connected to the bottom of each auxiliary rope. The four sets of auxiliary ropes are respectively fixedly connected to the four corners of the top of the feeding box. Multiple sets of limiting grooves are formed on the bottom of the inner wall of the feeding hopper near the conveyor table. A spring is fixedly connected to the inner wall of each limiting groove. A limiting block is fixedly connected to the end of each spring away from the conveyor table. The top of each limiting block is inclined. The feeding box is located on top of the limiting blocks. The main rope, auxiliary ropes, and feeding box are all made of high-temperature resistant materials. During operation, the conveyor belt transports crude antimony into the feeding hopper and drops it into the feeding box. As the amount of crude antimony increases, the weight of the feeding box becomes heavier and heavier. As the pressure exerted by the feeding box on the limiting block gradually increases, and because the top of the limiting block is sloped, when the weight of the crude antimony in the feeding box and the feeding box itself exceeds the supporting force of the limiting block, the limiting block will be gradually squeezed into the limiting groove by the feeding box, and the spring will be compressed. Afterward, the feeding box will move closer to the melt and feed the material. As the crude antimony in the feeding box gradually moves downward and the distance between it and the high-temperature melt decreases, the melt is less likely to be splashed when the crude antimony falls into the high-temperature melt. This prevents the high-temperature melt from splashing onto the furnace wall and generating a large amount of toxic fumes, reducing the threat to the health of the workers. Furthermore, since the feeding box only moves downward when the weight of the feeding box and the crude antimony exceeds the supporting force of the limiting block, it can ensure that the weight of each feeding is close, avoiding large temperature fluctuations in the furnace due to different weights each time, thereby improving the quality of the finished product.

[0009] Preferably, a baffle is slidably installed on the side of the feeding box away from the limiting block. Two sets of sliding grooves are formed on the outer wall of the feeding box, located on either side of the baffle. Sliding blocks are fixedly connected to the bottom of the outer walls of the baffle near the two sets of sliding grooves. The sliding blocks are slidably installed within the sliding grooves, and the size of the sliding blocks matches the size of the sliding grooves. Multiple sets of connecting ropes are fixedly connected to the top of the baffle. The upper ends of the connecting ropes are fixedly connected to the inner wall of the top of the feeding bin. The inner wall of the bottom of the feeding box is sloped. Both the connecting ropes and the baffle are made of high-temperature resistant material. During operation, when the feeding box moves towards one side of the furnace, the feeding box will simultaneously pull the upper baffle. The auxiliary rope and main rope, the baffle pulls the connecting rope above it. Since the length of the connecting rope is less than the length of the main rope, the connecting rope above the baffle will be straightened first. At this time, the main rope and auxiliary rope are still not straightened, so the feeding box will continue to pull the main rope and auxiliary rope downward. Since the baffle is slidably connected in the groove on the inner wall of the feeding box, the baffle will gradually detach from the groove and the feeding box, and the bottom side of the feeding box will gradually open. Since the bottom inner wall of the feeding box is set with a slope, the crude antimony in the feeding box will roll down the slope and fall into the furnace body from the opening of the baffle (i.e. the bottom side of the feeding box), thus completing the feeding.

[0010] Preferably, a rotating shaft is rotatably connected inside the feeding hopper, and a partition is fixedly connected to the outer circumference of the rotating shaft. A second torsion spring is installed inside the partition. Multiple sets of extrusion rods are installed on the top of the outer wall of the feeding box near the limiting block. All sets of extrusion rods are located at the bottom of the partition. A gap is left between the partition and the inner wall of the feeding hopper. This gap is used for conveying crude antimony. During operation, when the feeding hopper completes feeding and moves downward, the extrusion rods at the top gradually disengage from the partition, so that the partition is no longer limited. At this time, the partition gradually changes from an inclined state to a horizontal state under the force of the second torsion spring. When the extrusion rods are completely disengaged from the partition, the partition will be in a horizontal state to block the feeding port of the feeding hopper. The horizontal partition can block the crude antimony that falls from the feeding port of the feeding hopper, preventing the crude antimony that is subsequently conveyed from falling directly into the furnace from the feeding port of the feeding hopper, which would cause high-temperature melt to splash onto the furnace wall and generate a large amount of toxic fumes, thus preventing threats to the health of the workers.

[0011] Preferably, the multiple sets of limiting blocks correspond one-to-one with the multiple sets of extrusion rods. The width of the extrusion rods is the same as that of the limiting grooves. During operation, when the feeding box moves downward, it will simultaneously drive the extrusion rods to move. Since the width of the extrusion rods is the same as that of the limiting grooves, the extrusion rods will always block the limiting blocks when they move downward, preventing the limiting blocks from popping out of the limiting grooves. This means that when the feeding box moves upward after the feeding is completed, it does not need to extrude the limiting blocks again, thereby improving the service life of the limiting blocks and springs.

[0012] Preferably, the bottom of the feeding bin is fixedly connected with two sets of inclined plates, which are located on both sides of the bottom opening of the feeding bin. During operation, the inclined plates can guide the rising feeding box and limit the two sides of the feeding box, so that the feeding box can enter the feeding bin under the pull of the rollers, thereby improving work efficiency.

[0013] Preferably, the crushing assembly includes two sets of connecting shafts rotatably connected within the crushing chamber. Each set of connecting shafts has a pressing roller fixedly connected to its outer wall. A first screen and a second screen are fixedly connected inside the crushing chamber. The first and second screens are inclined relative to the crushing chamber. The first screen is located above the two sets of pressing rollers, and the second screen is located below them. The mesh size of the first screen is larger than that of the second screen. Two sets of waste outlets are provided on the inner wall of the crushing chamber on the side away from the feed hopper. These two sets of waste outlets correspond one-to-one with the second and first screens. Both connecting shafts are connected to the output end of a motor. During operation, the operator adds coarse antimony into the crushing chamber. When the coarse antimony passes through the first... During the first screening, the first screen will screen out medium-sized coarse antimony and remove larger coarse antimony. After being screened out, the medium-sized coarse antimony will fall into two sets of crushing rollers and be crushed into smaller coarse antimony. When the crushed coarse antimony passes through the second screen, the smaller coarse antimony will be screened out, and coarse antimony that is stuck together or is not up to standard size will be removed. The screened coarse antimony will move along the inclined surface of the first and second screens and be discharged from the waste outlet, thus ensuring that the coarse antimony fed in is small in volume. Because smaller coarse antimony can further reduce the distance of high-temperature melt splashing, it can prevent high-temperature melt from splashing onto the furnace wall and generating a large amount of toxic fumes, thus ensuring a good working environment in the workshop.

[0014] Preferably, the inner wall of the crushing chamber has two sets of connecting rods rotatably located on the side near the first and second screens. One set of connecting rods is located at the bottom of the first screen, and the other set is located at the top of the second screen. Each connecting rod has an L-shaped rod fixedly connected to its outer wall, and each L-shaped rod contains a first torsion spring. A protrusion is fixedly connected to the bottom of each L-shaped rod. Limiting rods are fixedly connected to both ends of each connecting shaft. When the limiting rods rotate, their end faces contact the end faces of the protrusions. During operation, when the connecting shaft drives the crushing roller to rotate, it simultaneously drives the limiting rods to rotate. When the limiting rods rotate, their end faces abut against the end faces of the protrusions and compress them, causing the protrusions to... The block drives the L-shaped rod to rotate, and the first torsion spring is gradually stretched. When the limiting rod disengages from the protrusion, the L-shaped rod will quickly rotate and reset under the force of the first torsion spring, striking the first and second screens and causing them to vibrate. This allows the coarse antimony screened at the top of the first and second screens to be quickly discharged, preventing screen blockage and ensuring crushing operations can be carried out, thus improving work efficiency. During operation, the crushed coarse antimony will fall from the feed pipe to the center of the conveyor belt, preventing it from falling from the sides of the conveyor belt during transportation and thus avoiding waste of raw materials. The inclined crushing chamber further facilitates the fall of coarse antimony, improving work efficiency.

[0015] Preferably, a feed pipe is fixedly connected to the bottom of the crushing chamber, the feed pipe is located above the center of the transmission belt, and the inner wall of the bottom of the crushing chamber is sloped.

[0016] Preferably, a waste collection bin is fixedly connected to the outer wall of the crushing bin near the waste outlet. The waste collection bin is fixedly connected to the external recycling box. During operation, the unqualified crude antimony discharged from the waste outlet will enter the waste collection bin and then enter the external recycling box, which facilitates the recycling of crude antimony by the staff.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. The feeding device for antimony smelting described in this invention gradually moves the crude antimony in the feeding box downwards, and the distance between it and the high-temperature molten material decreases. As the crude antimony falls into the high-temperature molten material, the molten material is less likely to be splashed, preventing the high-temperature molten material from splashing onto the furnace wall and generating a large amount of toxic fumes. This reduces the generation of fumes and lowers the threat to the health of workers.

[0019] 2. The feeding device for antimony smelting described in this invention gradually separates from the chute and the feeding box by means of a baffle, and gradually opens the bottom side of the feeding box. Since the bottom inner wall of the feeding box is set with a slope, the crude antimony in the feeding box will roll down the slope and fall into the furnace body from the opening of the baffle (i.e. the bottom side of the feeding box), thereby completing the feeding.

[0020] 3. The feeding device for antimony smelting described in this invention, after the extrusion rod is completely separated from the partition, the partition will be in a horizontal state to block the feed inlet of the feeding hopper. The horizontal partition can block the crude antimony that falls from the feed inlet of the feeding hopper, preventing the crude antimony that is subsequently transported from falling directly into the furnace from the feed inlet of the feeding hopper, which would cause high-temperature melt to splash onto the furnace wall and generate a large amount of toxic fumes, thus preventing a threat to the health of the workers.

[0021] 4. The feeding device for antimony smelting described in this invention allows the screened crude antimony to move along the inclined surfaces of the first and second screens and be discharged from the waste outlet, thereby ensuring that the fed crude antimony is small in size. Because the smaller crude antimony can further reduce the distance of high-temperature melt splashing, it prevents the high-temperature melt from splashing onto the furnace wall and generating a large amount of toxic fumes, thus ensuring a good working environment in the workshop.

[0022] 5. In the antimony smelting feeding device of the present invention, when the limiting rod disengages from the protrusion, the L-shaped rod will quickly rotate and reset under the force of the first torsion spring, and strike the first screen and the second screen, causing the first screen and the second screen to vibrate, thereby quickly discharging the coarse antimony screened out at the top of the first screen and the second screen, preventing the screen from being blocked and thus preventing the crushing operation from being carried out, thereby improving work efficiency. Attached Figure Description

[0023] The invention will now be further described with reference to the accompanying drawings.

[0024] Figure 1 This is a perspective view of the present invention;

[0025] Figure 2 This is a planar sectional view of the feeding hopper in this invention;

[0026] Figure 3 This is a cross-sectional schematic diagram of the limiting block in this invention;

[0027] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0028] Figure 5 This is a planar sectional view of the baffle in this invention;

[0029] Figure 6 yes Figure 5 Enlarged view of a section at point B in the middle;

[0030] Figure 7 This is a schematic diagram of the baffle detaching from the feed box in this invention;

[0031] Figure 8 This is a three-dimensional cross-sectional view of the partition in this invention;

[0032] Figure 9 This is a schematic diagram of the inclined plate in this invention;

[0033] Figure 10 This is a planar sectional view of the pulverizing chamber in this invention;

[0034] Figure 11 This is a three-dimensional cross-sectional view of the crushing chamber in this invention;

[0035] Figure 12 yes Figure 11 Enlarged view at point C;

[0036] Figure 13 A schematic diagram of the waste collection bin structure in the second embodiment of the present invention.

[0037] In the diagram: 1. Base; 2. Conveyor table; 3. Conveyor belt; 5. Crushing chamber; 6. First screen; 7. Waste outlet; 8. Second screen; 9. L-shaped rod; 10. Crushing roller; 11. Connecting shaft; 12. Protrusion; 13. Limiting rod; 14. Connecting rod; 15. First torsion spring; 16. Feeding pipe; 17. Waste collection chamber; 18. Feeding chamber; 19. Limiting groove; 20. Spring; 21. Limiting block; 22. Feeding box; 23. Rotating shaft; 24. Partition plate; 25. Second torsion spring; 26. Extrusion rod; 27. Main rope; 28. Secondary rope; 29. ​​Roller; 30. Slide groove; 31. Slider; 32. Baffle plate; 33. Connecting rope; 34. Inclined plate; 35. Caster wheel. Detailed Implementation

[0038] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0039] Example 1

[0040] like Figures 1 to 2 As shown in the embodiment of the present invention, a feeding device for antimony smelting includes a base 1, a conveyor platform 2 fixedly connected to the top of the base 1, a conveyor belt 3 connected to the conveyor platform 2 by multiple sets of rollers, a feeding bin 18 fixedly connected to the top of the conveyor platform 2, a feeding assembly provided in the feeding bin 18, the feeding assembly being used to transport and feed crude antimony conveyed to the furnace top into the furnace, a feeding box 22 provided in the feeding bin 18, a crushing bin 5 fixedly connected to the top of the side of the conveyor platform 2 away from the feeding bin 18, a crushing assembly provided in the crushing bin 5, the crushing assembly being used to crush the crude antimony, and multiple sets of universal wheels 35 fixedly connected to the lower surface of the base 1.

[0041] Antimony requires multiple additions of raw materials during smelting due to the need for slag filtering. Because the smelting process involves extremely high temperatures, a feeding device is typically used. A common feeding device consists of a feeding rack and a conveyor belt 3. Workers place crude antimony onto the conveyor belt 3, which then carries it to the top of the reverberatory furnace for feeding. Existing feeding devices usually transport the crude antimony to the furnace top and then directly feed it into the furnace. Because the furnace top is far from the high-temperature molten metal inside, when the crude antimony falling from the furnace top comes into contact with the high-temperature molten metal, some of the molten metal experiences a high impact and splashes onto the furnace wall, resulting in a large amount of smoke. Since antimony itself is toxic, the smoke it produces is also toxic. A large amount of smoke can affect the workshop environment and threaten the health of workers.

[0042] When using this embodiment of the invention, the operator first adds crude antimony into the crushing chamber 5. The crushing component in the crushing chamber 5 crushes the crude antimony, breaking down the larger pieces into smaller ones. The smaller pieces of crude antimony are then conveyed to the top of the furnace by the conveyor belt 3 and enter the feeding hopper 18. The feeding component in the feeding hopper 18 moves the crude antimony in the feeding box 22 towards the bottom of the furnace, bringing the crushed crude antimony closer to the surface of the molten metal. This reduces the distance between the crude antimony and the high-temperature molten metal, making it less likely for the high-temperature molten metal to splash when it falls into the furnace. This prevents the high-temperature molten metal from splashing onto the furnace wall and generating a large amount of toxic fumes, thus reducing the generation of fumes and minimizing the threat to the health of the operators.

[0043] like Figures 2 to 4 As shown, the feeding assembly includes a roller 29 fixedly connected to the top of the feeding bin 18. The roller 29 is fixedly connected to the output shaft of an external drive motor. A main rope 27 is wound around the outer circumference of the roller 29. The main rope 27 passes through the feeding bin 18. Four sets of auxiliary ropes 28 are fixedly connected to the bottom of the main rope 27. A feeding box 22 is fixedly connected to the bottom of the auxiliary ropes 28. The four sets of auxiliary ropes 28 are respectively fixedly connected to the four corners of the top of the feeding box 22. Multiple sets of limiting grooves 19 are opened at the bottom of the inner wall of the feeding bin 18 near the conveyor table 2. A spring 20 is fixedly connected to the inner wall of each limiting groove 19. A limiting block 21 is fixedly connected to the end of each spring 20 away from the conveyor table 2. The top of each limiting block 21 is set with an incline. The feeding box 22 is set on the top of the limiting block 21. The main rope 27, auxiliary ropes 28 and feeding box 22 are all made of high temperature resistant material.

[0044] Both the main rope 27 and the auxiliary rope 28 are initially in a detached state. During operation, the conveyor belt 3 transports crude antimony to the feeding bin 18 and drops it into the feeding box 22. As the amount of crude antimony increases, the weight of the feeding box 22 becomes heavier, causing the pressure exerted by the feeding box 22 on the limiting block 21 to gradually increase. Since the top of the limiting block 21 is sloped, when the weight of the crude antimony in the feeding box 22 and the feeding box 22 exceeds the supporting force of the limiting block 21, the limiting block 21 will be gradually squeezed into the limiting groove 19 by the feeding box 22, and the spring 20 will be compressed. Afterward, the feeding box 22 will move towards the side closer to the melt and discharge the material. As the crude antimony in the feeding box 22 gradually moves downward and... The reduced distance between the high-temperature molten materials makes it less likely for the molten material to splash when the crude antimony falls into the interior of the high-temperature molten material. This prevents the high-temperature molten material from splashing onto the furnace wall and generating a large amount of toxic fumes, thus reducing the threat to the health of the workers. After the material is fed, the drive motor is turned on to rotate the roller 29, pulling the main rope 27, the auxiliary rope 28, and the feeding box 22 upward until the bottom of the feeding box 22 is placed above the limit block 21. Under the restoration of the spring 20, the limit block 21 will support the feeding box 22 again. At this time, the motor is reversed again, causing the roller 29 to drive the main rope 27 and the auxiliary rope 28 from a taut state to a slack state, which facilitates the next feeding.

[0045] Furthermore, since the feeding box 22 will only move downward when the weight of the feeding box 22 and the crude antimony is greater than the supporting force of the limiting block 21, it can ensure that the weight of each feeding is close, avoiding large fluctuations in furnace temperature due to different weights of each feeding, thereby improving the quality of the finished product.

[0046] like Figures 5 to 7 As shown, a baffle 32 is slidably installed on the side of the feeding box 22 away from the limiting block 21. Two sets of sliding grooves 30 are opened on the outer wall of the feeding box 22. The two sets of sliding grooves 30 are respectively located on both sides of the baffle 32. A slider 31 is fixedly connected to the bottom of the outer wall of the baffle 32 near the two sets of sliding grooves 30. The slider 31 is slidably installed in the sliding groove 30. The slider 31 is adapted to the size of the sliding groove 30. Multiple sets of connecting ropes 33 are fixedly connected to the top of the baffle 32. The upper end of the connecting rope 33 is fixedly connected to the top inner wall of the feeding bin 18. The bottom inner wall of the feeding box 22 is set with an incline. Both the connecting ropes 33 and the baffle 32 are made of high temperature resistant materials.

[0047] Initially, the connecting rope 33 is detached. During operation, when the feeding box 22 moves to one side of the furnace, it simultaneously pulls the auxiliary rope 28 and the main rope 27 above it. The baffle 32 pulls the connecting rope 33 above it. Since the length of the connecting rope 33 is less than the length of the main rope 27, the connecting rope 33 above the baffle 32 will be straightened first. At this time, the main rope 27 and the auxiliary rope 28 are still not straightened, so the feeding box 22 will continue to pull the main rope 27 and the auxiliary rope 28 downwards. Also, since the baffle 32 is slidably connected to the groove 30 on the inner wall of the feeding box 22, the baffle 32 will gradually detach from the groove 30 and the feeding box 22, and the bottom side of the feeding box 22 will gradually open, as shown in the attached figure. Figure 7 As shown (at this time, the baffle 32 is in the open state), and since the bottom inner wall of the feeding box 22 is set with a slope, the crude antimony in the feeding box 22 will roll down along the slope and fall into the furnace body from the opening of the baffle 32 (i.e. the bottom side of the feeding box 22), thus completing the feeding.

[0048] At this time, the bottom of the baffle 32 has not detached from the upper end of the feeding box 22. When the feeding box 22 finishes feeding, the roller 29 rotates and pulls the main rope 27, the auxiliary rope 28, and the feeding box 22 upward. Under the limit of the slide 30, the feeding box 22 moves along the outer surface of the baffle 32, and the baffle 32 will gradually block the side of the feeding box 22 to facilitate subsequent feeding, thereby ensuring the normal progress of the feeding operation. When the baffle 32 moves, it drives the sliders 31 at both ends of its bottom to move in the slide 30. The sliders 31 limit the baffle 32 to prevent the baffle 32 from detaching from the side of the feeding box 22, which would prevent the side of the feeding box 22 from being blocked later.

[0049] like Figures 8 to 9 As shown, a rotating shaft 23 is rotatably connected inside the feeding bin 18, and a partition 24 is fixedly connected to the outer circumference of the rotating shaft 23. A second torsion spring 25 is provided inside the partition 24. Multiple sets of extrusion rods 26 are provided on the top of the outer wall of the feeding box 22 near the limiting block 21. All sets of extrusion rods 26 are located at the bottom of the partition 24. A gap is left between the partition 24 and the inner wall of the feeding bin 18. This gap is used to transfer crude antimony.

[0050] In the initial state, the partition 24 is inclined relative to the vertical surface of the feeding bin 18 and does not contact the inner wall of the feeding bin 18. At this time, the second torsion spring 25 is in a tightened state. During operation, when the feeding bin 22 completes feeding and moves downward, the pressing rod 26 at the top of it gradually disengages from the partition 24, so that the partition 24 is no longer limited. At this time, the partition 24 gradually changes from an inclined state to a horizontal state under the force of the second torsion spring 25. When the pressing rod 26 completely disengages from the partition 24, the partition 24 will be in a horizontal state to block the feed inlet of the feeding bin 18. The horizontal partition 24 can block the crude antimony that falls from the feed inlet of the feeding bin 18, and prevent the crude antimony that is subsequently conveyed from falling directly into the furnace from the feed inlet of the feeding bin 18, which would cause the high-temperature melt to splash onto the furnace wall and generate a large amount of toxic fumes, thus preventing a threat to the health of the workers.

[0051] When the feeding box 22 drives the extrusion rod 26 back to its initial position, the extrusion rod 26 will extrude the partition 24 again, causing the partition 24 to change from a horizontal state to an inclined state. This allows the coarse antimony blocked above the partition 24 to fall into the feeding box 22 along its inclined surface and the side wall of the feeding bin 18, facilitating the feeding of the feeding box 22 again.

[0052] like Figure 3 As shown, the multiple sets of limiting blocks 21 correspond one-to-one with the multiple sets of extrusion rods 26, and the width of the extrusion rods 26 is the same as that of the limiting grooves 19;

[0053] During operation, the feeding box 22 moves downwards, simultaneously driving the extrusion rod 26 to move. Since the extrusion rod 26 has the same width as the limiting groove 19, the extrusion rod 26 will always block the limiting block 21 when it moves downwards, preventing the limiting block 21 from popping out of the limiting groove 19. This means that when the feeding box 22 moves upwards after feeding is completed, it does not need to extrude the limiting block 21 again, thereby improving the service life of the limiting block 21 and the spring 20. It should be noted that the weight of the feeding box 22 is sufficient to keep the limiting block 21 blocked in the limiting groove 19 and prevent it from popping out.

[0054] like Figure 3 As shown, two sets of inclined plates 34 are fixedly connected to the bottom of the feeding bin 18. The two sets of inclined plates 34 are located on both sides of the bottom opening of the feeding bin 18. During operation, the inclined plates 34 can guide the rising feeding box 22 and limit the two sides of the feeding box 22, so that the feeding box 22 can enter the feeding bin 18 under the pull of the roller 29, thereby improving work efficiency.

[0055] like Figure 10As shown, the crushing assembly includes two sets of connecting shafts 11 rotatably connected inside the crushing chamber 5. Rollers 10 are fixedly connected to the outer walls of both sets of connecting shafts 11. A first screen 6 and a second screen 8 are fixedly connected inside the crushing chamber 5. The first screen 6 and the second screen 8 are inclined relative to the crushing chamber 5. The first screen 6 is located above the two sets of rollers 10, and the second screen 8 is located below the two sets of rollers 10. The screen openings of the first screen 6 are larger than those of the second screen 8. Two sets of waste outlets 7 are opened on the inner wall of the crushing chamber 5 on the side away from the feeding chamber 18. The two sets of waste outlets 7 correspond one-to-one with the second screen 8 and the first screen 6. Both connecting shafts 11 are connected to the output end of a motor.

[0056] During operation, two sets of motors are first turned on, causing the connecting shaft 11 and the crushing roller 10 to rotate simultaneously. Then, the operator adds coarse antimony into the crushing chamber 5. When the coarse antimony passes through the first screen 6, the first screen 6 will screen out medium-sized coarse antimony and remove larger coarse antimony. After being screened out, the medium-sized coarse antimony falls into the two sets of crushing rollers 10 and is crushed into smaller coarse antimony. When the crushed coarse antimony passes through the second screen 8, the second screen 8 will screen out the smaller coarse antimony and remove coarse antimony that is stuck together or is not up to standard size. The screened coarse antimony will move along the inclined surface of the first screen 6 and the second screen 8 and be discharged from the waste outlet 7, thus ensuring that the coarse antimony fed in is small in volume. Because smaller coarse antimony can further reduce the distance of high-temperature melt splashing, it can prevent high-temperature melt from splashing onto the furnace wall and generating a large amount of toxic fumes, thus ensuring a good working environment in the workshop.

[0057] like Figures 10 to 12 As shown, the inner wall of the crushing chamber 5 has two sets of connecting rods 14 rotatably located on the side near the first screen 6 and the second screen 8. One set of connecting rods 14 is located at the bottom of the first screen 6, and the other set is located at the top of the second screen 8. Each connecting rod 14 has an L-shaped rod 9 fixedly connected to its outer wall. Each L-shaped rod 9 has a first torsion spring 15 installed inside it. Each L-shaped rod 9 has a protrusion 12 fixedly connected to its bottom. Each connecting shaft 11 has a limit rod 13 fixedly connected to both ends. When the limit rod 13 rotates, the end face of the limit rod 13 will contact the end face of the protrusion 12.

[0058] During operation, in the initial state, the ends of the upper and lower L-shaped rods 9 abut against the first screen 6 and the second screen 8 respectively, and the first torsion spring 15 is in a stress-free state. When the connecting shaft 11 drives the crushing roller 10 to rotate, it will simultaneously drive the limiting rod 13 to rotate. When the limiting rod 13 rotates, its end face will abut against the end face of the protrusion 12 and squeeze it, causing the protrusion 12 to drive the L-shaped rod 9 to rotate, and the first torsion spring 15 will be gradually stretched. When the limiting rod 13 disengages from the protrusion 12, the L-shaped rod 9 will quickly rotate and reset under the force of the first torsion spring 15, and strike the first screen 6 and the second screen 8, causing the first screen 6 and the second screen 8 to vibrate, thereby quickly discharging the coarse antimony screened at the top of the first screen 6 and the second screen 8, preventing the screen from clogging and making it impossible to carry out the crushing operation, thus improving work efficiency.

[0059] like Figure 10 As shown, a feeding pipe 16 is fixedly connected to the bottom of the crushing chamber 5. The feeding pipe 16 is located above the center of the transmission belt. The inner wall of the bottom of the crushing chamber 5 is set with an incline. During operation, the coarse antimony after crushing will fall from the feeding pipe 16 to the center of the transmission belt 3, preventing it from falling from both sides of the transmission belt during transportation and causing waste of raw materials. The incline setting of the crushing chamber 5 can facilitate the falling of coarse antimony and improve work efficiency.

[0060] Example 2

[0061] like Figure 13 As shown in the comparative embodiment one, another embodiment of the present invention is as follows: a waste collection bin 17 is fixedly connected to the outer wall of the crushing bin 5 near the waste outlet 7, and the waste collection bin is fixedly connected to the external recycling bin; during operation, the unqualified crude antimony discharged from the waste outlet 7 will enter the waste collection bin 17 and then enter the external recycling bin from the waste collection bin 17, which facilitates the recycling of crude antimony by the staff.

[0062] During operation, both sets of motors are first turned on, causing the connecting shaft 11 and the crushing roller 10 to rotate simultaneously. Then, the operator adds coarse antimony into the crushing chamber 5. When the coarse antimony passes through the first screen 6, it filters out medium-sized pieces and removes larger pieces. The medium-sized pieces fall into the two crushing rollers 10 and are crushed into smaller pieces. After being crushed, the coarse antimony passes through the second screen 8, which filters out the smaller pieces and removes any clumps of coarse antimony or pieces that are not the correct size. The removed coarse antimony moves along the inclined surfaces of the first and second screens 6 and exits through the waste outlet 7, ensuring that the fed coarse antimony is small in size. Smaller pieces of coarse antimony further reduce the splashing of high-temperature molten metal. The distance prevents the high-temperature molten metal from splashing onto the furnace wall and generating a large amount of toxic fumes, ensuring a good working environment in the workshop. When the connecting shaft 11 drives the crushing roller 10 to rotate, it will simultaneously drive the limiting rod 13 to rotate. When the limiting rod 13 rotates, its end face will abut against the end face of the protrusion 12 and squeeze it, causing the protrusion 12 to drive the L-shaped rod 9 to rotate, and the first torsion spring 15 will be gradually stretched. When the limiting rod 13 is separated from the protrusion 12, the L-shaped rod 9 will quickly rotate and reset under the force of the first torsion spring 15, and strike the first screen 6 and the second screen 8, causing the first screen 6 and the second screen 8 to vibrate, thereby quickly discharging the coarse antimony screened at the top of the first screen 6 and the second screen 8, preventing the screen from clogging and making it impossible to carry out the crushing operation, thus improving work efficiency.

[0063] Subsequently, conveyor belt 3 transports the crude antimony into the feeding hopper 18 and drops it into the feeding box 22. As the amount of crude antimony increases, the weight of the feeding box 22 becomes heavier, causing the pressure exerted by the feeding box 22 on the limiting block 21 to gradually increase. Since the top of the limiting block 21 is sloped, when the weight of the crude antimony in the feeding box 22 and the feeding box 22 exceeds the supporting force of the limiting block 21, the limiting block 21 will be gradually squeezed into the limiting groove 19 by the feeding box 22, and the spring 20 will be compressed. Afterward, the feeding box 22 will move towards the side closer to the melt and discharge the material. As the crude antimony gradually moves downwards, the distance between it and the high-temperature melt decreases. This makes it less likely for the melt to splash when the crude antimony falls into the high-temperature melt, preventing the high-temperature melt from splashing onto the furnace wall and generating a large amount of toxic fumes, thus reducing the threat to the health of the workers. Furthermore, since the feeding box 22 only moves downwards when the weight of the feeding box 22 and the crude antimony exceeds the supporting force of the limiting block 21, it can ensure that the weight of each feeding is close, avoiding large fluctuations in the furnace temperature due to different feeding weights each time, thereby improving the quality of the finished product.

[0064] When the feeding box 22 moves to one side of the furnace, it simultaneously pulls the auxiliary rope 28 and the main rope 27 above it, and the baffle 32 pulls the connecting rope 33 above it. Since the length of the connecting rope 33 is less than the length of the main rope 27, the connecting rope 33 above the baffle 32 will be straightened first. At this time, the main rope 27 and the auxiliary rope 28 are still not straightened, so the feeding box 22 will continue to pull the main rope 27 and the auxiliary rope 28 downward. Since the baffle 32 is slidably connected to the groove 30 on the inner wall of the feeding box 22, the baffle 32 will gradually detach from the groove 30 and the feeding box 22, and the bottom side of the feeding box 22 will gradually open. Since the bottom inner wall of the feeding box 22 is set with a slope, the coarse antimony in the feeding box 22 will roll down along the slope and fall into the furnace from the opening of the baffle 32 (i.e., the bottom side of the feeding box 22), thus completing the feeding.

[0065] After the material is unloaded, the drive motor is turned on to rotate the roller 29, pulling the main rope 27, the auxiliary rope 28, and the unloading box 22 upward. The unloading box 22 moves along the outer surface of the baffle 32 under the limit of the slide 30, and the baffle 32 gradually seals the side of the unloading box 22 to facilitate subsequent feeding, thus ensuring the normal progress of the unloading operation. When the baffle 32 moves, it drives the sliders 31 at both ends of its bottom to move within the slide 30. The sliders 31 limit the baffle 32 to prevent it from detaching from the side of the unloading box 22, which would prevent the side of the unloading box 22 from being sealed later. When the bottom of the unloading box 22 is placed above the limit block 21, the limit block 21 will support the unloading box 22 again under the restoration of the spring 20. At this time, the motor is reversed again, causing the roller 29 to drive the main rope 27 and the auxiliary rope 28 from a taut state to a slack state, thus facilitating the next unloading.

[0066] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A feeding device for antimony smelting, characterized in that: Including base (1), the base (1) top fixedly connected with conveying table (2), the conveying table (2) is connected with conveyor belt (3) through multiple groups of roller axle, the conveying table (2) top fixedly connected with the blanking bin (18), the blanking bin (18) is provided with blanking assembly, the blanking assembly is used to transport and blank the coarse antimony transported to the furnace top to the furnace, the blanking bin (18) is provided with blanking box (22), the conveying table (2) is fixedly connected with the crushing bin (5) on the side away from the blanking bin (18) top, the crushing bin (5) is provided with crushing assembly, the crushing assembly is used to crush the coarse antimony, the base (1) lower surface fixedly connected with multiple groups of universal wheel (35); The blanking assembly includes a roller (29) fixedly connected to the top of the blanking bin (18), the roller (29) is fixedly connected with the output shaft of the external driving motor, the outer peripheral surface of the roller (29) is wound with a main rope (27), the main rope (27) penetrates into the blanking bin (18) and is provided, the bottom of the main rope (27) is fixedly connected with four groups of auxiliary ropes (28), the bottom of the auxiliary rope (28) is fixedly connected with the blanking box (22), the four groups of auxiliary ropes (28) are respectively fixedly connected with the four corners of the top of the blanking box (22), a plurality of limiting grooves (19) are formed in the inner wall of the side of the blanking bin (18) close to the conveying table (2), a spring (20) is fixedly connected to the inner wall of each limiting groove (19), a limiting block (21) is fixedly connected to the end of each spring (20) away from the conveying table (2), the top of each limiting block (21) is provided as an inclined surface, the blanking box (22) is provided on the top of the limiting block (21), the main rope (27), the auxiliary rope (28) and the blanking box (22) are all made of high-temperature-resistant material; A baffle (32) is slidably installed on the side of the blanking box (22) away from the limiting block (21), two groups of sliding grooves (30) are formed in the outer wall of the blanking box (22), the two groups of sliding grooves (30) are respectively located on the two sides of the baffle (32), a sliding block (31) is fixedly connected to the outer wall bottom of each of the two sides of the baffle (32) close to the two groups of sliding grooves (30), the sliding block (31) is slidably installed in the sliding groove (30), the sliding block (31) is matched with the sliding groove (30) in size, a plurality of connecting ropes (33) are fixedly connected to the top of the baffle (32), the upper end of the connecting rope (33) is fixedly connected with the inner wall of the top of the blanking bin (18), the inner wall of the bottom of the blanking box (22) is provided as an inclined surface, the baffle (32) and the connecting rope (33) are all made of high-temperature-resistant material; A rotating shaft (23) is rotatably connected in the blanking bin (18), a partition plate (24) is fixedly connected to the outer peripheral surface of the rotating shaft (23), a second torsional spring (25) is arranged in the partition plate (24), a plurality of extrusion rods (26) are arranged on the outer wall of the side of the blanking box (22) close to the limiting block (21) top, the plurality of extrusion rods (26) are all located on the bottom of the partition plate (24), a gap is left between the partition plate (24) and the inner wall of the blanking bin (18), and the gap is used for transporting coarse antimony.

2. The feeding device for antimony smelting according to claim 1, characterized in that: A plurality of groups of the limiting blocks (21) correspond to a plurality of groups of the extrusion rods (26) one by one, the extrusion rods (26) have the same width as the limiting grooves (19).

3. The feeding device for antimony smelting according to claim 2, characterized in that: The bottom of the discharging bin (18) is fixedly connected with two groups of inclined plates (34), and the two groups of inclined plates (34) are located on the two sides of the bottom opening of the discharging bin (18).

4. The feeding device for antimony smelting according to claim 1, characterized in that: The crushing assembly comprises two groups of connecting shafts (11) rotatably connected in the crushing bin (5), the outer walls of the two groups of connecting shafts (11) are fixedly connected with the crushing rollers (10), the crushing bin (5) is fixedly connected with the first screen (6) and the second screen (8), the first screen (6) and the second screen (8) are arranged in an inclined manner relative to the crushing bin (5), the first screen (6) is located above the two groups of crushing rollers (10), the second screen (8) is located below the two groups of crushing rollers (10), the screen hole of the first screen (6) is larger than that of the second screen (8), two groups of waste outlets (7) are formed in the inner wall of the side of the crushing bin (5) away from the discharging bin (18), the two groups of waste outlets (7) correspond to the second screen (8) and the first screen (6) one by one, and the two connecting shafts (11) are connected with the output end of the motor.

5. The feeding device for antimony smelting according to claim 4, characterized in that: The inner wall of the crushing bin (5) is rotatably provided with two groups of connecting rods (14) close to the side of the first screen (6) and the second screen (8), one group of the connecting rods (14) is located at the bottom of the first screen (6), and the other group is located at the top of the second screen (8), the outer wall of each connecting rod (14) is fixedly connected with an L-shaped rod (9), the first torsional spring (15) is arranged in each L-shaped rod (9), the bottom of each L-shaped rod (9) is fixedly connected with a protruding block (12), and the two ends of each connecting shaft (11) are fixedly connected with a limiting rod (13).

6. The feeding device for antimony smelting according to claim 4, characterized in that: The bottom of the crushing bin (5) is fixedly connected with a discharging pipe (16), the discharging pipe (16) is located above the center of the transmission belt, and the inner wall of the bottom of the crushing bin (5) is arranged in a slope.

7. The feeding device for antimony smelting according to claim 4, characterized in that: The outer wall of the side of the crushing bin (5) close to the waste outlet (7) is fixedly connected with a waste collecting bin (17), and the waste collecting bin (17) is fixedly connected with an external recycling box.

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