A water washing device for zinc sulfide production

Abstract

The application belongs to the technical field of zinc sulfide processing, and specifically relates to a water washing device for zinc sulfide production, which comprises a water washing kettle, the water washing kettle comprises a kettle cover, an inner kettle body and an outer kettle body, a second hollow shaft is arranged at the center of the kettle cover, a first hollow shaft is sleeved in the second hollow shaft, a rotary joint is arranged at the upper end of the first hollow shaft, the rotary joint is connected with a high-pressure hot air blower through a pipeline, a one-way exhaust valve is arranged at the lower end of the first hollow shaft, a plurality of groups of paddles are fixed to the shaft body of the first hollow shaft, an air pipe is fixed to the side wall of the paddle, a plurality of groups of one-way nozzles are arranged on the pipe body of the air pipe, a joint communicating with the central cavity of the first hollow shaft is arranged on the shaft body of the first hollow shaft, and the joint is fixedly connected with the air pipe. The water washing and drying functions are integrated in one device, the water washing effect is improved, the material transfer time is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the field of zinc sulfide processing technology, specifically a water washing device for zinc sulfide production. Background Technology

[0002] Zinc sulfide, as an important inorganic compound, has shown broad application potential in many fields due to its unique optical properties, especially in the field of infrared imaging.

[0003] During the synthesis of zinc sulfide, various factors such as raw materials, reaction conditions, and synthesis methods often introduce water-soluble chemical impurities. These impurities may include unreacted raw materials, reaction byproducts, catalyst residues, and other soluble substances. Washing with water can effectively remove these impurities from the zinc sulfide product, thereby improving the product's purity and quality.

[0004] However, current water washing devices have poor washing effects, simply agitating and cleaning, resulting in some particles not being in sufficient contact with the cleaning water, thus affecting the removal of impurities. Summary of the Invention

[0005] To address the problems existing in the prior art, this invention proposes a water washing device for zinc sulfide production, integrating washing and drying functions into one device. This aims to improve the washing effect and reduce material transfer time, thereby increasing production efficiency. Specifically, this is achieved through the following technical solution: A water washing device for zinc sulfide production includes a washing kettle and a high-pressure hot air blower. The washing kettle includes an inner kettle body and an outer kettle body. The inner kettle body is installed inside the outer kettle body. A kettle cover is fastened to the top of the outer kettle body. A feeding port is provided on one side of the top of the kettle cover. A second hollow shaft is mounted on the center of the kettle cover through a bearing bracket. A first hollow shaft is sleeved inside the second hollow shaft. A first driving part and a second driving part are sequentially installed on the outer top of the kettle cover from bottom to top. The second driving part is drivenly connected to the first hollow shaft, and the first driving part is drivenly connected to the second hollow shaft. A rotary joint is provided at the upper end of the first hollow shaft. The rotary joint is connected to the high-pressure hot air blower through a pipe. A one-way exhaust valve is provided at the lower end of the first hollow shaft. Multiple sets of blades are fixed to the shaft of the first hollow shaft. Air pipes are fixed to the side walls of the blades. Multiple sets of one-way nozzles are provided on the body of the air pipes. A connector communicating with its central cavity is provided on the shaft of the first hollow shaft. The connector is fixedly connected to the air pipes.

[0006] Preferably, the shaft of the second hollow shaft is fixed with a separation and re-distribution device, which is located in the outer vessel body and above the inner vessel body. A second outlet communicating with the inner vessel body is provided on one side of the bottom of the outer vessel body, and a fourth inlet connected to the separation and re-distribution device is provided on one side of the outer vessel body. The fourth inlet is connected to a second pump group through a pipe, and the other end of the second pump group is connected to the second outlet through a pipe.

[0007] Preferably, the separation and redistribution device includes a separation disc, which includes a cone base and a cover plate. A bushing is provided at the center of the cone base, and the second hollow shaft passes through the bushing and is fixed thereon. Multiple sets of blades are provided on the outer edge of the cone base, which are distributed around the bushing. The cover plate is fastened onto these blades. A collection hood is provided on the top of the cover plate. A diversion cavity is formed between adjacent blades. A filter screen is provided at the outer port of the diversion cavity. A leakage hole communicating with the diversion cavity is provided at the bottom of the cone base.

[0008] Preferably, the separation and redistribution device further includes a water-spraying tray, which is fitted onto the outside of the cone base.

[0009] Preferably, the upper surface of the water-spinning plate is provided with guide strips corresponding to the blades, and the guide strips are distributed around the cone base.

[0010] Preferably, one side of the blade is provided with multiple sets of comb teeth.

[0011] Preferably, the washing device further includes a storage tank system, and a first inlet and a first outlet communicating with the inner vessel are provided on one side of the outer vessel, with the first outlet connected to the first inlet through the storage tank system.

[0012] Preferably, the storage tank system includes a first storage tank, a second storage tank, a third storage tank, and a first pump set. One end of the first pump set is connected to the first storage tank, the second storage tank, and the third storage tank respectively through a pipeline system, and the other end of the first pump set is connected to a first inlet and a first outlet respectively through a pipeline system.

[0013] Preferably, a second spray ring pipe is suspended from the inner top of the vessel lid, and a third inlet connected to the second spray ring pipe is provided on one side of the outer top of the vessel lid, and the third inlet is connected to the piping system.

[0014] Preferably, a first spray ring pipe is suspended inside the outer vessel body, and an annular cavity is formed between the inner vessel body and the outer vessel body. The first spray ring pipe is located above the annular cavity, and a second inlet connected to the first spray ring pipe is provided on one side of the outer vessel body. The second inlet is connected to the piping system.

[0015] After adopting the above technical solution, the beneficial effects of the present invention are: This invention significantly improves the washing efficiency and product quality in zinc sulfide production through innovative designs such as a double-layer reactor structure, independent dual-shaft drive, and coordinated centrifugal separation and hot air drying. Simultaneously, it reduces material transfer time, shortens the process flow, and enhances production efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the invention; Figure 2 This is a schematic diagram of the structure of the water washing kettle; Figure 3 This is a schematic diagram of the blade structure; Figure 4 This is a schematic diagram of the separation disc structure; Figure 5 This is a schematic diagram of the vessel lid.

[0017] Explanation of reference numerals in the attached figures: 1-Washing vessel, 2-First diversion gate valve, 3-First drive unit, 4-Second drive unit, 5-First conveying pipe, 6-High-pressure hot air blower, 7-Second conveying pipe, 8-First storage tank, 9-Second storage tank, 10-Third conveying pipe, 11-Third storage tank, 12-Second diversion gate valve, 13-Third diversion gate valve, 14-Fourth conveying pipe, 15-First pump set, 16-Fourth diversion gate valve, 17-Second pump set, 18-Inner vessel body, 19-First inlet, 20-Outer vessel body, 21-First outlet, 22-Scraper, 23-Second outlet, 24-Single 25-Exhaust valve, 26-Blade, 27-First hollow shaft, 28-First spray ring pipe, 29-Second inlet, 30-Separator and redistributor, 31-Third inlet, 32-Rotary joint, 33-Feeding port, 34-Fourth inlet, 35-Water-throwing plate, 36-Comb teeth, 37-Air pipe, 38-One-way nozzle, 39-Connector, 40-Guide strip, 41-Separation plate, 42-Collection hood, 43-Cover plate, 44-Cone seat, 45-Filter screen, 46-Leakage hole, 47-Shaft sleeve, 48-Blade, 49-Bottle cover, 50-Second spray ring pipe. Detailed Implementation

[0018] The features and exemplary embodiments of various aspects of the present invention will now be described in detail. To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present invention and are not configured to limit the present invention. For those skilled in the art, the present invention can be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the invention.

[0019] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of the invention. It should also be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0020] In one specific embodiment, the present invention provides a water washing device for zinc sulfide production, including a water washing tank 1, a high-pressure hot air blower 6, a second pump group 17, and a storage tank system.

[0021] The washing vessel 1 includes an inner vessel body 18 and an outer vessel body 20. The inner vessel body 18 is installed inside the outer vessel body 20 via a bracket, forming a double-layer structure. A vessel cover 49 is fitted onto the top of the outer vessel body 20, and the vessel cover 49 has a feeding port 33 and a third inlet 31. A bearing bracket is located at the center of the vessel cover 49, and a second hollow shaft 30 is mounted on the bearing bracket via a deep groove ball bearing assembly, ensuring that the second hollow shaft 30 can rotate around its own axis. A first hollow shaft 26 is mounted in the central cavity of the second hollow shaft 30 via an angular contact bearing assembly, ensuring that the first hollow shaft 26 can rotate around its own axis. The first hollow shaft 26 and the second hollow shaft 30 achieve independent rotation without interference through an independent bearing system.

[0022] The outer top of the lid 49 is equipped with a first driving unit 3 and a second driving unit 4 from bottom to top. The first hollow shaft 26 is driven to rotate by the second driving unit 4 (in this example, the output end of the second driving unit 4 is fixed with a first bevel gear, and the shaft body of the first hollow shaft 26 is fixed with a second bevel gear that meshes with the first bevel gear, thereby realizing the driving of the first hollow shaft 26), and the second hollow shaft 30 is driven to rotate by the first driving unit 3 (the principle is the same as above).

[0023] When the first drive unit 3 is activated, its output torque is transmitted to the second hollow shaft 30, causing it to rotate around its own axis. Similarly, when the second drive unit 4 is activated, its output torque is transmitted to the first hollow shaft 26, causing it to also rotate around its own axis. Since the two drive units are driven by independent bevel gear transmission chains, they can independently control the rotational speed and direction of the two hollow shafts.

[0024] The upper end of the first hollow shaft 26 is provided with a rotary joint 32 connecting to its central cavity. The rotary joint 32 is connected to the high-pressure hot air blower 6 via a pipe. The lower end of the first hollow shaft 26 is provided with a one-way exhaust valve 24 in its central cavity. The outer wall of the one-way exhaust valve 24 is provided with two symmetrically distributed scrapers 22, which are adapted to the bottom contour of the inner vessel 18. The design of the one-way exhaust valve 24 ensures that gas can only be ejected from one direction, avoiding backflow of materials.

[0025] The first hollow shaft 26 has multiple sets of blades 25 fixed to its shaft body, which serve to agitate materials. Air pipes 37 are fixed to the side walls of the blades 25, and the air pipes 37 are equipped with multiple sets of one-way nozzles 38. The air pipes 37 are located on the side of the blades 25 facing away from the direction of rotation, ensuring that the air pipes 37 and one-way nozzles 38 will not experience excessive resistance or damage when the blades 25 are agitating materials. The design of the one-way nozzles 38 ensures that gas can only be ejected in one direction, preventing backflow of materials. The shaft body of the first hollow shaft 26 is equipped with a connector 39 connecting to its central cavity, and the connector 39 is fixedly connected to the air pipes 37.

[0026] Multiple sets of comb teeth 36 are provided on one side of the blade 25. When processing high-viscosity or difficult-to-mix materials, the design of the comb teeth 36 helps to break the adhesion between materials, making them easier to mix evenly and ensuring the washing effect.

[0027] The second hollow shaft 30 has a separator / redistributor 29 fixed to its shaft. The separator / redistributor 29 is located on the outer vessel body 20 and above the inner vessel body 18. A second outlet 23 communicating with the inner vessel body 18 is provided on one side of the bottom of the outer vessel body 20, and a fourth inlet 34 connecting to the separator / redistributor 29 is provided on one side of the outer vessel body 20. The input end of the second pump set 17 is connected to the second outlet 23 via a pipe, and the output end of the second pump set 17 is connected to the fourth inlet 34 via a pipe.

[0028] The separator 29 includes a separator disc 41, which comprises a cone base 44 and a cover plate 43. A bushing 47 is centrally located on the cone base 44, through which a second hollow shaft 30 passes, and the bushing 47 is fixedly connected to the second hollow shaft 30. Multiple sets of blades 48 are arranged around the bushing 47 on the outer edge of the cone base 44. The cover plate 43 is fastened onto these blades 48, forming a flow divider cavity with adjacent blades 48. A filter screen 45 covers the outer port of the flow divider cavity, and a leakage hole 46 communicating with the flow divider cavity is provided at the bottom of the cone base 44. A collection hood 42 is provided on the top of the cover plate 43, coinciding with the centerline of the cone base 44. A guide pipe extending into the collection hood 42 is provided at one end of the fourth inlet 34. A water-spinning disc 35 is fitted onto the outer side of the cone base 44, and guide strips 40 corresponding to the blades 48 are provided on the upper surface of the water-spinning disc 35, distributed around the cone base 44.

[0029] A first spray ring pipe 27 is suspended inside the outer vessel body 20. An annular cavity is formed between the inner vessel body 18 and the outer vessel body 20. The first spray ring pipe 27 is located above the annular cavity. A second inlet 28 connected to the first spray ring pipe 27 is provided on one side of the outer vessel body 20. A second spray ring pipe 50 is suspended from the inner top of the vessel cover 49. A third inlet 31 connected to the second spray ring pipe 50 is provided on one side of the outer top of the vessel cover 49.

[0030] The storage tank system includes a first storage tank 8, a second storage tank 9, a third storage tank 11, a first pump set 15, a first diversion gate valve 2, a second diversion gate valve 12, a third diversion gate valve 13, and a fourth diversion gate valve 16. A first inlet 19 and a first outlet 21, connecting the inner vessel body 18, are provided on one side of the outer vessel body 20. The first inlet 19 is positioned higher than the first outlet 21. The A gate of the first diversion gate valve 2 is connected to the B gate of the second diversion gate valve 12 via a first delivery pipe 5. The B gate of the first diversion gate valve 2 is connected to the third inlet 31 via a pipe, and its C gate is connected to the second inlet 28 via a pipe. The A gate of the second diversion gate valve 12 is connected to the first inlet 19 via a pipe, and its C gate is connected to the B gate of the third diversion valve 13 via a pipe. The A port of the third diversion gate valve 13 is connected to the output end of the first pump group 15 via a pipe, its C port is connected to the inlet of the third storage tank 11 via a pipe, and its D port is connected to the inlet of the second storage tank 9 via the third delivery pipe 10. The A port of the fourth diversion gate valve 16 is connected to the first outlet 21 via a pipe, its B port is connected to the outlet of the first storage tank 8 via the second delivery pipe 7, its C port is connected to the input end of the first pump group 15 via a pipe, and its D port is connected to the outlet of the second storage tank 9 via the fourth delivery pipe 14.

[0031] First, a measured amount of zinc sulfide powder to be treated is added to the inner vessel 18 through the feeding port 33. After the zinc sulfide powder is added, the A and C gates of the second diversion gate valve 12 are opened, and the A and B gates of the third diversion gate valve 13 and the B and C gates of the fourth diversion valve 16 are opened simultaneously. The first pump group 15 is started, and deionized water in the first storage tank 8 is pumped into the inner vessel 18 until the water level sensor in the inner vessel 18 detects that the liquid level has reached the preset value. Then, the first pump group 15 is stopped, and all gates are closed.

[0032] The second drive unit 4 starts, driving the paddle 25 to rotate via the first hollow shaft 26, ensuring that the zinc sulfide powder can fully contact and mix with the deionized water. Simultaneously, the high-pressure hot air blower 6 starts cold, supplying cold air to the central cavity of the first hollow shaft 26 through the rotary joint 32, ultimately blowing it out as bubbles from the one-way nozzle 38 and one-way exhaust valve 24. The generated bubbles cause the material to "boil," further enhancing the mixing uniformity and improving the washing effect. As the zinc sulfide powder fully contacts and mixes with the deionized water, soluble impurities are gradually dissolved in the deionized water, completing one washing cycle. Subsequently, the second drive unit 4 and the high-pressure hot air blower 6 stop, allowing for settling.

[0033] After settling, the A and C gates of the third diversion gate valve 13 and the A and C gates of the fourth diversion gate valve 16 open simultaneously, activating the first pump group 15. The upper liquid in the inner vessel 18 is pumped into the third storage tank 11 until the water level sensor in the inner vessel 18 detects that the liquid level has reached the preset value. Then, the first pump group 15 stops, and all gates close. The water injection and washing operation is repeated, pumping the deionized water in the first storage tank 8 back into the inner vessel 18 for a second and third water wash. After the second water wash, the upper liquid is pumped back into the third storage tank 11. After the third water wash, the A and D gates of the third diversion gate valve 13 and the A and C gates of the fourth diversion valve 16 open simultaneously, activating the first pump group 15. The upper liquid in the inner vessel 18 is pumped into the second storage tank 9, awaiting reuse. When the water level sensor in the inner vessel 18 detects that the liquid level has reached the preset value, the first pump group 15 stops, and all gates close.

[0034] After the third water wash, the second drive unit 4 starts, driving the blades 25 to rotate at low speed via the first hollow shaft 26. The first drive unit 3 starts, driving the separator and re-distributor 29 to rotate at high speed via the second hollow shaft 30. The high-pressure hot air blower 6 starts up, delivering hot air to the central cavity of the first hollow shaft 26 through the rotary joint 32, and finally blowing it out from the one-way nozzle 38 and the one-way exhaust valve 24.

[0035] Simultaneously, the second pump unit 17 starts, and the material in the inner vessel 18 is transported by the second pump unit 17 to the separator redistributor 29 for solid-liquid separation. Part of the liquid passes through the filter screen 45 and is thrown into the annular cavity by the water-throwing tray 35. The remaining liquid falls into the inner vessel 18 through the leakage hole 46 along with the solid material until the sensor in the second outlet 23 detects that the moisture content has reached the preset value, at which point the second pump unit 17 and the first drive unit 3 stop. The second drive unit 4 and the high-pressure hot air blower 6 continue to work, and the hot air continues to blow, accelerating the evaporation of moisture until the shutdown conditions are met (such as reaching a specific drying time, temperature, or moisture content). A pressure relief valve is provided on the vessel lid 49 to release pressure when necessary.

[0036] The embodiments described above are not exhaustive and do not limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the above description. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to effectively utilize the invention and its modifications. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A water washing apparatus for zinc sulfide production, characterized in that: The system includes a washing tank and a high-pressure hot air blower. The washing tank comprises an inner tank body and an outer tank body, with the inner tank body installed inside the outer tank body. A lid is fitted onto the top of the outer tank body, and a feeding port is provided on one side of the top of the lid. A second hollow shaft is mounted on the center of the lid via a bearing bracket, and a first hollow shaft is fitted inside the second hollow shaft. A first drive unit and a second drive unit are sequentially installed on the outer top of the lid from bottom to top. The second drive unit is drively connected to the first hollow shaft, and the first drive unit is drively connected to the second hollow shaft. A rotary joint is provided at the upper end of the first hollow shaft, and the rotary joint is connected to a high-pressure hot air blower via a pipe. A hot air blower has a one-way exhaust valve at the lower end of the first hollow shaft. Multiple sets of blades are fixed to the shaft body of the first hollow shaft. Air pipes are fixed to the side walls of the blades. Multiple sets of one-way nozzles are installed on the air pipes. A connector communicating with the central cavity of the first hollow shaft is provided on the shaft body of the first hollow shaft, and the connector is fixedly connected to the air pipes. A separation and re-distribution device is fixed to the shaft body of the second hollow shaft. The separation and re-distribution device is located in the outer vessel body and above the inner vessel body. A second outlet communicating with the inner vessel body is provided on one side of the bottom of the outer vessel body. A fourth inlet communicating with the separation and re-distribution device is provided on one side of the outer vessel body. The fourth inlet is connected to a pipe... The second pump set has its other end connected to a second outlet via a pipe. The separator / redistributor includes a separation disc, which comprises a cone base and a cover plate. A bushing is disposed at the center of the cone base, through which a second hollow shaft passes. The bushing is fixedly connected to the second hollow shaft. Multiple sets of blades are arranged around the bushing on the outer edge of the cone base. The cover plate is fastened onto these blades. A collection hood is disposed at the top of the cover plate. A diversion cavity is formed between adjacent blades. A filter screen is covered at the outer port of the diversion cavity. A leakage hole communicating with the diversion cavity is disposed at the bottom of the cone base. The separator / redistributor also includes a water-spinning disc. The disc is mounted on the outside of the cone seat. The upper surface of the water-throwing disc is provided with guide strips corresponding to the blades. The guide strips are distributed around the cone seat. The first spray ring pipe is suspended inside the outer vessel body. An annular cavity is formed between the inner vessel body and the outer vessel body. The first spray ring pipe is located above the annular cavity. A second inlet connected to the first spray ring pipe is provided on one side of the outer vessel body. The second inlet is connected to the pipeline system. When the second pump group is started, the material in the inner vessel body is transported by the second pump group to the separator redistributor for solid-liquid separation. Part of the liquid passes through the filter screen and is thrown into the annular cavity by the water-throwing disc. The remaining liquid falls into the inner vessel body through the leakage hole along with the solid material.

2. The zinc sulfide production water washing apparatus according to claim 1, characterized in that: The blade has multiple sets of comb teeth on one side.

3. The zinc sulfide production water washing apparatus according to claim 1, characterized in that: The washing device also includes a storage tank system. One side of the outer vessel is provided with a first inlet and a first outlet that communicate with the inner vessel. The first outlet is connected to the first inlet through the storage tank system.

4. The zinc sulfide production water washing apparatus according to claim 3, characterized in that: The storage tank system includes a first storage tank, a second storage tank, a third storage tank, and a first pump set. One end of the first pump set is connected to the first storage tank, the second storage tank, and the third storage tank through a pipeline system, and the other end of the first pump set is connected to a first inlet and a first outlet through a pipeline system.

5. The zinc sulfide production water washing apparatus according to claim 4, characterized in that: A second spray ring pipe is suspended from the inner top of the vessel lid, and a third inlet connected to the second spray ring pipe is provided on one side of the outer top of the vessel lid. The third inlet is connected to the piping system.

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