Cold spraying device based on rotary kiln for enriching zinc-containing solid waste

Abstract

The utility model relates to the technical field of metallurgy, and discloses a cold spraying device based on a rotary kiln for enriching zinc-containing solid waste, which comprises a kiln tank, a recovery component is arranged below the kiln tank, the lower surface of a discharge box is fixedly connected with a rack, and a cooling component is arranged on the outer wall of the rack; the cooling assembly comprises an annular water pipe and a connecting rod, the outer wall of the connecting rod is sleeved with a sliding block, a first bevel gear and a second bevel gear are arranged in the sliding block, one end of the second bevel gear is fixedly connected with a second straight gear, one side of the outer wall of the connecting rod is fixedly connected with a rack, and the second straight gear is connected with the rack in an engaged mode. And the outer wall of the sliding block is fixedly connected with a spray head. According to the cooling assembly, the annular water pipe is matched with the movable spray head, the bevel gear transmission mechanism and the sliding rail system are combined, dynamic and uniform cooling of the outer wall of the rotary kiln is achieved, and the problem that local cooling is not uniform or overheating is caused by traditional fixed spraying is effectively solved through the structure.

Description

Technical Field

[0001] This utility model relates to the field of metallurgical technology, and in particular to a cold skimming device based on a rotary kiln for enriching zinc-containing solid waste. Background Technology

[0002] In the fields of metallurgy and solid waste treatment, the resource utilization of zinc-containing solid waste is a key link in reducing environmental pollution and improving metal recovery rate. Rotary kilns are widely used for the enrichment treatment of zinc-containing solid waste due to their high-temperature calcination capacity. However, during the calcination process, the kiln body is prone to thermal stress accumulation due to high temperature. Efficient cooling technology is needed to ensure stable operation of the equipment. As an important supporting system of rotary kiln, the cooling efficiency and uniformity of the cooling device directly affect the kiln body life and process continuity.

[0003] Currently, traditional rotary kiln cooling systems mostly use fixed spray systems, which use static nozzles arranged around the kiln body for water cooling. These systems typically rely on water pumps to deliver cooling water to the fixed nozzles, and the water is sprayed directly onto the outer wall of the kiln to achieve heat exchange. Some technologies also combine air cooling assistance, using fans to accelerate the evaporation of moisture on the kiln surface to enhance the cooling effect. The core principle of existing technologies is to reduce the surface temperature of the kiln body through continuous spraying, but their mechanical structure is simple and the nozzle position and water flow distribution are not adjustable.

[0004] However, fixed spray systems, due to the fixed position of the spray nozzles, are prone to uneven cooling in local areas of the kiln. In high-temperature areas, insufficient water coverage can easily lead to overheating of the kiln wall, while low-temperature areas may waste water resources and concentrate thermal stress due to excessive spraying. This uneven cooling problem not only reduces energy utilization efficiency, but also easily accelerates the fatigue of kiln materials and shortens the service life of equipment, becoming a major bottleneck restricting the stable operation of zinc-containing solid waste treatment processes. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a cold spraying device based on a rotary kiln for enriching zinc-containing solid waste, which aims to improve the problem of uneven local cooling or overheating caused by traditional fixed spraying.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a cold skimming device based on a rotary kiln for enriching zinc-containing solid waste, comprising a kiln tank, a recycling component disposed below the kiln tank, a discharge box fixedly connected to one end of the kiln tank, an exhaust pipe fixedly connected to the upper surface of the discharge box, a frame fixedly connected to the lower surface of the discharge box, a burner fixedly connected to the upper surface of the frame, and a cooling component disposed on the outer wall of the frame;

[0007] The cooling assembly includes an annular water pipe disposed on the outer wall of the frame. A connecting rod is fixedly connected to the outer wall of the frame. One end of the connecting rod is fixedly connected to one side of the outer wall of the annular water pipe. A slider is sleeved on the outer wall of the connecting rod. A bevel gear one is disposed inside the slider. A bevel gear two is rotatably connected inside the slider. The bevel gear two meshes with the bevel gear one. A spur gear two is fixedly connected to one end of the bevel gear two. A rack is fixedly connected to one side of the outer wall of the connecting rod. The spur gear two meshes with the rack. A nozzle is fixedly connected to the outer wall of the slider.

[0008] Furthermore, the recycling component includes a guide plate disposed below the kiln tank. A straight water pipe is fixedly connected inside the guide plate. One end of the straight water pipe is connected to an adapter via a flange. A filter cartridge is disposed inside the adapter. A flange cover is disposed on the lower surface of the adapter. A cooling box is disposed on one side of the adapter. The adapter and the cooling box are connected via a straight water pipe. A diversion pipe is fixedly connected inside the cooling box. A fan is fixedly connected to the lower surface of the cooling box.

[0009] Furthermore, a water storage tank is provided on one side of the cooling box, and the cooling box and the water storage tank are connected by a straight water pipe.

[0010] Furthermore, a second motor is installed on one side of the water storage tank. The water storage tank and the water inlet of the second motor are connected by a hose. The annular water pipe is connected to the water outlet of the second motor by a hose. The annular water pipe is connected to the nozzle by a hose.

[0011] Furthermore, gear teeth are fixedly connected to the outer wall of the kiln tank, and multiple spur gears are rotatably connected inside the frame, with the gear teeth meshing with the spur gears.

[0012] Furthermore, a motor is provided on the upper surface of the frame, and the output end of the motor is fixedly connected inside a spur gear.

[0013] Furthermore, a third motor is installed inside the slider, and the output end of the third motor is fixedly connected inside the bevel gear.

[0014] Furthermore, a pulley is rotatably connected inside the slider, and a groove is formed on the outer wall of the connecting rod, with the pulley disposed inside the groove.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, the cooling component uses a combination of annular water pipe and movable nozzle, along with a bevel gear transmission mechanism and slide rail system, to dynamically adjust the position of the nozzle on the connecting rod, thereby achieving uniform spray cooling of the outer wall of the kiln. This achieves dynamic and uniform cooling of the outer wall of the rotary kiln. This structure effectively avoids the problems of uneven cooling or overheating caused by traditional fixed spraying, significantly improving cooling efficiency. At the same time, the automatic adjustment function reduces manual intervention and ensures stable operation of the equipment for a long time.

[0017] 2. In this utility model, the recycling component collects cooling wastewater centrally through the guide plate, filters solid impurities through the filter cartridge, and rapidly cools the water through the cooling box, the diversion pipe, and the fan. The wastewater is then returned to the storage tank for recycling via the straight water pipe. This design can effectively separate solid impurities from the wastewater and reduce water consumption through the recycling of cooling water. At the same time, it lowers the wastewater temperature to improve the efficiency of subsequent treatment, thereby improving the stability and sustainability of the overall system. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the cold skimming device based on a rotary kiln for enriching zinc-containing solid waste proposed in this utility model.

[0019] Figure 2 This is a schematic diagram of the annular water pipe structure of the cold rinsing device based on a rotary kiln for enriching zinc-containing solid waste proposed in this utility model.

[0020] Figure 3 This is a schematic diagram of the diversion pipe structure of the cold skimming device based on a rotary kiln for enriching zinc-containing solid waste proposed in this utility model;

[0021] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0022] Figure 5 for Figure 3 Enlarged diagram of point B in the middle.

[0023] Legend:

[0024] 1. Kiln; 2. Gear teeth; 3. Spur gear I; 4. Motor I; 5. Frame; 6. Discharge box; 7. Exhaust pipe; 8. Burner; 9. Annular water pipe; 10. Connecting rod; 11. Water storage tank; 12. Motor II; 13. Hose; 14. Slider; 15. Bevel gear I; 16. Bevel gear II; 17. Spur gear II; 18. Rack; 19. Pulley; 20. Slide groove; 21. Guide plate; 22. Straight water pipe; 23. Adapter; 24. Filter cartridge; 25. Flange cover; 26. Cooling box; 27. Diverter pipe; 28. Fan; 29. ​​Nozzle; 30. Motor III. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figures 1-3 This utility model provides an embodiment of a cold skimming device based on a rotary kiln for enriching zinc-containing solid waste. The device includes a kiln tank 1, a recovery assembly below the kiln tank 1, a discharge box 6 fixedly connected to one end of the kiln tank 1, and an exhaust pipe 7 fixedly connected to the upper surface of the discharge box 6 to achieve separate discharge of solid products and waste gas, avoiding cross-contamination. A frame 5 is fixedly connected to the lower surface of the discharge box 6, and a burner 8 is fixedly connected to the upper surface of the frame 5 to provide a stable calcination heat source for the kiln tank 1. A cooling assembly is provided on the outer wall of the frame 5; the cooling assembly includes… An annular water pipe 9 is connected to a water storage tank 11 via a flexible hose 13 to form a closed-loop water circuit, ensuring a continuous supply of cooling water. The annular water pipe 9 is installed on the outer wall of the frame 5, and a connecting rod 10 is fixedly connected to the outer wall of the frame 5. One end of the connecting rod 10 is fixedly connected to one side of the outer wall of the annular water pipe 9. A slider 14 is sleeved on the outer wall of the connecting rod 10. A bevel gear 15 is installed inside the slider 14. A bevel gear 16 is rotatably connected inside the slider 14. The bevel gear 16 meshes with the bevel gear 15. One end of the bevel gear 16 is fixedly connected to... A spur gear 17 is connected to the outer wall of the connecting rod 10. A rack 18 is fixedly connected to the outer wall of the connecting rod 10. The spur gear 17 meshes with the rack 18. A nozzle 29 is fixedly connected to the outer wall of the slider 14. The slider 14 on the connecting rod 10 is driven by a bevel gear transmission system via a motor 30, causing the nozzle 29 to reciprocate along the rack 18, thereby achieving dynamic and uniform cooling of the outer wall of the kiln 1. Gear teeth 2 are fixedly connected to the outer wall of the kiln 1. Multiple spur gears 3 are rotatably connected inside the frame 5. Gear teeth 2 mesh with the spur gears 3. The upper surface of the frame 5... Motor 4 is installed, and its output end is fixedly connected inside a spur gear 3. Motor 4 drives the kiln 1 to rotate through the spur gear 3, making the material heat more evenly. Motor 30 is installed inside the slider 14, and its output end is fixedly connected inside a bevel gear 15. Pulley 19 is rotatably connected inside the slider 14. A groove 20 is opened on the outer wall of the connecting rod 10, and pulley 19 is set inside the groove 20. The matching design of pulley 19 and groove 20 ensures that the slider 14 moves smoothly and reduces mechanical wear.

[0027] Reference Figures 1-5The recycling component includes a guide plate 21, which is located below the kiln tank 1. A straight water pipe 22 is fixedly connected inside the guide plate 21. The guide plate 21 is designed with an inclination to allow cooling wastewater to quickly collect into the straight water pipe 22. One end of the straight water pipe 22 is connected to an adapter 23 via a flange. A filter cartridge 24 is installed inside the adapter 23 to filter solid impurities. A flange cover 25 is installed on the lower surface of the adapter 23 to facilitate periodic cleaning of the solid impurities trapped by the filter cartridge 24. A cooling box 26 is installed on one side of the adapter 23, and the adapter 23 is connected to the cooling box 26 via the straight water pipe 22. A diversion system is fixedly connected inside the cooling box 26. A fan 28 is fixedly connected to the lower surface of the cooling box 26 via pipe 27. The split pipe 27 adopts a honeycomb structure, which, together with the fan 28, forces convection to rapidly reduce the temperature of the wastewater. A water storage tank 11 is installed on one side of the cooling box 26. The cooling box 26 and the water storage tank 11 are connected by a straight water pipe 22. A second motor 12 is installed on one side of the water storage tank 11. The inlets of the water storage tank 11 and the second motor 12 are connected by a hose 13. The annular water pipe 9 is connected to the outlet of the second motor 12 by a hose 13. The annular water pipe 9 is connected to the nozzle 29 by a hose 13. The annular water pipe 9 is connected to the water storage tank 11 by a hose 13 to form a closed-loop water circuit, ensuring a continuous supply of cooling water.

[0028] Working principle: When the cold skimming device based on the rotary kiln for enriching zinc-containing solid waste is needed, firstly, motor 4 is started to drive spur gear 3 to mesh with the gear teeth 2 on the outer wall of the kiln tank 1, causing the kiln tank 1 to rotate at a uniform speed. At the same time, the burner 8 is fixed on the upper surface of the frame 5 to provide calcination heat energy to the kiln tank 1. The discharge box 6 is connected to one end of the kiln tank 1 through the frame 5 to discharge solid products, and the exhaust pipe 7 on its surface is responsible for exhaust gas discharge. Subsequently, motor 12 is started to pump the cooling water in the water storage tank 11 into the annular water pipe 9 through the hose 13 and deliver it to the nozzle 29. At the same time, motor 30 in the slider 14 drives bevel gear 15 to rotate, which drives spur gear 17 to rotate through bevel gear 16 meshing with it. The spur gear 17 meshes with the rack 18 on the connecting rod 10, pushing the pulley 19 to reciprocate along the groove 20 on the outer wall of the connecting rod 10. This allows the nozzle 29 to dynamically adjust its position on the connecting rod 10, achieving uniform spray cooling of the outer wall of the kiln tank 1. The cooling wastewater generated during the cooling process is collected by the guide plate 21 and flows into the adapter 23 through the straight water pipe 22. After being filtered by the filter cartridge 24 to remove solid impurities, it enters the cooling box 26. The diversion pipe 27 in the cooling box 26 distributes the wastewater evenly. With the help of the fan 28, the airflow is accelerated, and the wastewater temperature is quickly reduced. The cooled wastewater flows back to the water storage tank 11 through the straight water pipe 22 for recycling. The filtered solid residue can be cleaned periodically through the flange cover 25.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cold skimming device based on a rotary kiln for enriching zinc-containing solid waste, comprising a kiln tank (1), characterized in that: A recycling component is provided below the kiln tank (1). A discharge box (6) is fixedly connected to one end of the kiln tank (1). An exhaust pipe (7) is fixedly connected to the upper surface of the discharge box (6). A frame (5) is fixedly connected to the lower surface of the discharge box (6). A burner (8) is fixedly connected to the upper surface of the frame (5). A cooling component is provided on the outer wall of the frame (5). The cooling assembly includes an annular water pipe (9), which is disposed on the outer wall of the frame (5). A connecting rod (10) is fixedly connected to the outer wall of the frame (5). One end of the connecting rod (10) is fixedly connected to one side of the outer wall of the annular water pipe (9). A slider (14) is sleeved on the outer wall of the connecting rod (10). A bevel gear (15) is disposed inside the slider (14). A bevel gear (16) is rotatably connected inside the slider (14). The bevel gear (16) meshes with the bevel gear (15). A spur gear (17) is fixedly connected to one end of the bevel gear (16). A rack (18) is fixedly connected to one side of the outer wall of the connecting rod (10). The spur gear (17) meshes with the rack (18). A nozzle (29) is fixedly connected to the outer wall of the slider (14).

2. The cold skimming device based on a rotary kiln for enriching zinc-containing solid waste according to claim 1, characterized in that: The recycling assembly includes a guide plate (21) which is located below the kiln tank (1). A straight water pipe (22) is fixedly connected inside the guide plate (21). One end of the straight water pipe (22) is connected to an adapter (23) via a flange. A filter cartridge (24) is installed inside the adapter (23). A flange cover (25) is installed on the lower surface of the adapter (23). A cooling box (26) is installed on one side of the adapter (23). The adapter (23) is connected to the cooling box (26) via the straight water pipe (22). A diversion pipe (27) is fixedly connected inside the cooling box (26). A fan (28) is fixedly connected to the lower surface of the cooling box (26).

3. The cold skimming device based on a rotary kiln for enriching zinc-containing solid waste according to claim 2, characterized in that: A water storage tank (11) is provided on one side of the cooling box (26), and the cooling box (26) and the water storage tank (11) are connected by a straight water pipe (22).

4. The cold skimming device based on a rotary kiln for enriching zinc-containing solid waste according to claim 3, characterized in that: A second motor (12) is provided on one side of the water storage tank (11). The water inlet of the water storage tank (11) and the second motor (12) are connected by a hose (13). The annular water pipe (9) is connected to the outlet of the second motor (12) by a hose (13). The annular water pipe (9) is connected to the nozzle (29) by a hose (13).

5. The cold skimming device based on a rotary kiln for enriching zinc-containing solid waste according to claim 1, characterized in that: The outer wall of the kiln tank (1) is fixedly connected with gear teeth (2), and the frame (5) is rotatably connected with multiple spur gears (3), and the gear teeth (2) mesh with the spur gears (3).

6. The cold skimming device based on a rotary kiln for enriching zinc-containing solid waste according to claim 5, characterized in that: The upper surface of the frame (5) is provided with a motor (4), and the output end of the motor (4) is fixedly connected inside a spur gear (3).

7. The cold skimming device based on a rotary kiln for enriching zinc-containing solid waste according to claim 1, characterized in that: The slider (14) is equipped with a motor three (30), and the output end of the motor three (30) is fixedly connected to the inside of the bevel gear one (15).

8. The cold skimming device based on a rotary kiln for enriching zinc-containing solid waste according to claim 1, characterized in that: The slider (14) is rotatably connected to a pulley (19), and the outer wall of the connecting rod (10) is provided with a groove (20), and the pulley (19) is disposed inside the groove (20).

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