Molybdenum concentrate hydrometallurgy waste gas treatment equipment
By designing molybdenum concentrate hydrometallurgical waste gas treatment equipment for filtration, communication and grinding mechanisms, the problem of untreated particulate matter in the waste gas is solved, effective filtration and collection are achieved, and environmental and health risks are reduced.
Patent Information
- Application Number
- CN202510573251.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-06
- Publication Date
- 2025-08-01
AI Technical Summary
The metal particulate matter and mineral powder entrained in the exhaust gas generated during the molybdenum concentrate hydrometallurgy process have not been properly treated, resulting in environmental pollution and health risks, and it is difficult for the existing technology to effectively filter and collect these particulate matter.
A molybdenum concentrate hydrometallurgical waste gas treatment equipment is designed, including a filtering mechanism, a communication mechanism and a grinding mechanism. Large particulate matter is initially filtered through the filtering mechanism, the communication mechanism guides flow and grinds light particulate matter, and the grinding mechanism further processes and collects dust and slag materials.
Effective filtration and collection of large particulate matter and dust in molybdenum concentrate wet metallurgy waste gas is achieved, preventing blockage, reducing environmental pollution and health risks, and improving production safety.
Smart Images
Figure CN120393600A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of waste gas treatment, and particularly to a waste gas treatment device for hydrometallurgy of molybdenum concentrate. Background Art
[0002] Hydrometallurgy of molybdenum concentrate is an efficient and environmentally friendly metal extraction process, mainly used for recovering molybdenum and other valuable metals from molybdenum concentrate. This process generally includes key steps such as leaching, purification, precipitation, and roasting. First, molybdenum concentrate is pretreated by oxidative roasting to convert molybdenum sulfide into molybdate (such as sodium molybdate) that is soluble in water. Subsequently, pressure or atmospheric leaching is carried out using an alkaline (such as sodium hydroxide or sodium carbonate solution) or acidic (such as nitric acid or sulfuric acid) medium, so that molybdenum enters the solution in the form of molybdate ions (MoO4²⁻). After the leaching solution is filtered, impurities (such as copper, iron, etc.) are removed by solvent extraction, ion exchange, or chemical precipitation methods to obtain a high-purity molybdenum solution. The purified solution can generate molybdic acid (H2MoO4) by acidification precipitation, or ammonium polymolybdate ((NH4)6Mo7O 24 ·4H2O) is formed by adding ammonium salts, and finally molybdenum trioxide (MoO3) is obtained by calcination or further reduced to metallic molybdenum. Hydrometallurgy has advantages such as high recovery rate (>95%), low energy consumption, and less waste gas emission, and is particularly suitable for the treatment of low-grade complex ores, which is the mainstream technical development direction in the current molybdenum metallurgy field.
[0003] If the waste gas generated during the hydrometallurgy of molybdenum concentrate is not properly treated, the entrained metal particles and mineral powders will have multiple adverse effects on the environment, health, and production operation. These fine particles contain metal oxides such as molybdenum, copper, and iron, as well as unreacted ore powder. Direct emission will cause an increase in the concentration of inhalable particles in the surrounding atmosphere, and may pollute the soil and water bodies through sedimentation. The long-term accumulation of heavy metal components poses a potential threat to the ecosystem. From a health perspective, these inhalable particles are likely to cause diseases. Summary of the Invention
[0004] To achieve the above objectives, the present invention is realized through the following technical solutions: A waste gas treatment device for hydrometallurgy of molybdenum concentrate, including a frame; Filter mechanism, which is used to filter the particles in the hydrometallurgical waste gas, and a connecting frame fixedly connected to the outer side of the filter mechanism. Since molybdenum concentrate MoS2 will generate MoO3 dust, unreacted ore powder or other metal oxide particles during roasting, when treating the hydrometallurgical waste gas of molybdenum concentrate, it is necessary to filter the solid particles and dust in the waste gas. By setting the filter mechanism, when treating the hydrometallurgical waste gas of molybdenum concentrate, the waste gas can be preliminarily filtered, so that the large particle metal oxide particles and ore powder generated by roasting in the waste gas can be collected, and the waste gas after preliminary filtration will flow to the next treatment step; Connecting mechanism, which is used to divert the filtered waste gas. By setting the connecting mechanism, the waste gas after preliminary filtration can be diverted, so that the waste gas can flow to the next step. At the same time, under the drive, the waste gas entering the inner cavity of the connecting mechanism can be ground, so as to grind the large and light-textured particles, thereby achieving the effect of preventing particle blockage; Grinding mechanism, which is used to grind the particles in the waste gas. By setting the grinding mechanism, the hydrometallurgical waste gas of molybdenum concentrate after preliminary filtration can be further treated, so that the particles and impurities generated by roasting in the hydrometallurgical waste gas of molybdenum concentrate can be ground, and the dust and slag formed by grinding can be blocked. Finally, the filtered gas and the dust and slag formed by grinding are collected respectively; The filter mechanism is fixedly connected to the inner cavity of the frame, the connecting mechanism is fixedly connected to one end of the connecting frame away from the filter mechanism, the connecting mechanism is arranged directly above the filter mechanism through the connecting frame, and the grinding mechanism is arranged on the upper surface of the filter mechanism; The filter mechanism includes an inclined box, which is fixedly connected to the inner wall of the frame. The upper surface of the inclined box is penetrated by a connecting pipe, the top end of the connecting pipe is penetrated by a filter box, and the outer side of the filter box is penetrated by an air inlet pipe. By setting the inclined box, the bottom surface of its inner cavity is an inclined bottom surface, which can utilize the gravity of the hydrometallurgical waste gas particles of molybdenum concentrate to make the hydrometallurgical waste gas and metal particles of molybdenum concentrate falling into the inner cavity of the inclined box slide to the bottom of the inner cavity of the inclined box. Then, under the action of the air flow, the metal particles and impurities at the bottom of the inner cavity of the inclined box can be sucked out. By setting the filter box and the air inlet pipe, the waste gas generated by the hydrometallurgy of molybdenum concentrate can enter the inner cavity of the filter box through the air inlet pipe.
[0005] Preferably, a partition board is fixedly connected to the inner wall of the filter box, an inclined pipe is fixedly connected to the inner wall of the filter box, a filter plate is fixedly connected to the inner wall of the inclined pipe, the number of the partition boards and the inclined pipes is several, and several of the partition boards and the inclined pipes are arranged at intervals.
[0006] Preferably, a collection box is fixedly connected to the side of the inclined pipe away from the inner wall of the filtration box. The collection box is communicated with the end of the inclined pipe. A slag discharge pipe penetrates through the lower surface of the collection box, and the slag discharge pipe penetrates through the inclined box and extends to the upper surface of the inclined box. A first rolling bearing penetrates through the upper surface of the filtration box.
[0007] Preferably, a communication pipe penetrates through the outer side surface of the inclined box. The communication mechanism includes a fixed ring, which is fixedly connected to the top end of the connecting frame. An air inlet box is fixedly connected to the inner wall of the fixed ring. The top end of the air inlet box is fixedly connected to the end of the communication pipe away from the inclined box. A connecting box is fixedly connected to the outer surface of the air inlet box. A second rolling bearing is fixedly connected to the outer surface of the connecting box. A rotating box is fixedly connected to the outer ring of the second rolling bearing.
[0008] Preferably, a grinding ring is fixedly connected to the inner wall of the air inlet box. A limiting ring is fixedly connected to the lower surface of the air inlet box. The number of the limiting rings is three, and the three limiting rings are evenly distributed. A scraping rod is slidably connected to the inner cavity of the limiting ring. A first spring is sleeved on the outer surface of the scraping rod, and the end of the first spring is fixedly connected to the outer surface of the limiting ring.
[0009] Preferably, the grinding mechanism includes a fixed frame, which is fixedly connected to the upper surface of the filtration box. A stepping motor is fixedly connected to the inner cavity of the fixed frame. The output end of the stepping motor is installed with a rotating rod through a coupling. A gear is fixedly connected to the top end of the rotating rod. A toothed ring is fixedly connected to the outer surface of the rotating box, and the toothed ring meshes with the gear.
[0010] Preferably, the grinding mechanism further includes a filter cylinder, which is fixedly connected to the lower surface of the rotating box. An exhaust box is sleeved on the outer surface of the filter cylinder. Exhaust holes are opened on the lower surface of the exhaust box.
[0011] Preferably, a funnel is fixedly connected to the lower surface of the exhaust box. The funnel is fixedly connected to the inner ring of the first rolling bearing. The bottom end of the funnel penetrates through the collection box, and the bottom end of the funnel is rotatably connected to the inner cavity of the collection box. Stirring plates are fixedly connected to the outer surface of the funnel located in the inner cavity of the filtration box.
[0012] Preferably, a breathable plate is fixedly connected to the inner wall of the rotating box. A conical barrel is fixedly connected to the inner surface of the breathable plate. A support frame is fixedly connected to the outer surface of the conical barrel. A threaded column is fixedly connected to the top end of the support frame. A spiral groove is opened on the outer surface of the threaded column, and the scraping rod is extrusion-fitted with the spiral groove opened on the outer surface of the threaded column.
[0013] Preferably, a blocking mechanism is slidably connected to the inner cavity of the exhaust box. The blocking mechanism includes a sliding plate which is slidably connected to the inner cavity of the exhaust box. A second spring is fixedly connected to the lower surface of the sliding plate, and the bottom end of the second spring is fixedly connected to the bottom surface of the inner cavity of the exhaust box. A blocking plate is fixedly connected to the upper surface of the sliding plate. The blocking plate is frictionally adapted to the inner surface of the exhaust box. A support rod is fixedly connected to the outer surface of the blocking plate, and a sealing ring is fixedly connected to the top end of the support rod. The sealing ring is extrusion-fitted to the outer surface of the conical barrel.
[0014] The present invention provides a wet metallurgy waste gas treatment device for molybdenum concentrate, which has the following beneficial effects: First, in this wet metallurgy waste gas treatment device for molybdenum concentrate, by setting a filtering mechanism, when treating the wet metallurgy waste gas of molybdenum concentrate, the waste gas can be preliminarily filtered, so that large particle metal oxide particles and ore powder generated by roasting in the waste gas are collected, and the waste gas after preliminary filtration will flow to the next treatment step.
[0015] Second, in this wet metallurgy waste gas treatment device for molybdenum concentrate, through the communication mechanism, the waste gas after preliminary filtration can be diverted, so that the waste gas can flow to the next step. At the same time, under transmission, the waste gas entering the inner cavity of the communication mechanism can be ground, so that large and light-textured particulate matters are ground, thus achieving the effect of preventing particulate matter blockage.
[0016] Third, in this wet metallurgy waste gas treatment device for molybdenum concentrate, through the grinding mechanism, the wet metallurgy waste gas of molybdenum concentrate after preliminary filtration can be further treated, so that the particulate matter and impurities generated by roasting in the wet metallurgy waste gas of molybdenum concentrate are ground, and the dust and slag formed by grinding are blocked. Finally, the filtered gas and the dust and slag formed by grinding are collected respectively.
[0017] Fourth, in this wet metallurgy waste gas treatment device for molybdenum concentrate, by setting an inclined box, the bottom surface of its inner cavity is an inclined bottom surface, and the gravity of the particulate matter of the wet metallurgy waste gas of molybdenum concentrate itself can be utilized to make the wet metallurgy waste gas and metal particulate matter falling into the inner cavity of the inclined box slide to the bottom of the inner cavity of the inclined box. Then, under the action of the air flow, the metal particulate matter and impurities at the bottom of the inner cavity of the inclined box can be sucked out.
[0018] Fifth, in this wet metallurgy waste gas treatment device for molybdenum concentrate, by setting a plurality of partition plates and inclined pipes, the inner wall of the filter box can be divided into multiple spaces, and the inclined effect of the inclined pipes can be utilized to make the metal particulate matter in the wet metallurgy waste gas of molybdenum concentrate entering the inner cavity of the filter box flow in the inner cavity of the inclined pipes. Under the action of the filter plate, the gas will pass through the filter plate and enter the bottom of the filter box, while the metal particulate matter will be blocked by the filter plate. Brief Description of the Drawings
[0019] Figure 1 It is a schematic external structure diagram of an exhaust gas treatment device for wet metallurgy of molybdenum concentrate according to the present invention; Figure 2 It is a side view of the structure of an exhaust gas treatment device for wet metallurgy of molybdenum concentrate according to the present invention; Figure 3 It is a schematic structural diagram of the filtering mechanism according to the present invention; Figure 4 It is a schematic sectional structure diagram of the filtering mechanism according to the present invention; Figure 5 It is a schematic structural diagram of the connecting mechanism according to the present invention; Figure 6 It is a schematic sectional structure diagram of the connecting mechanism according to the present invention; Figure 7 It is a schematic structural diagram of the grinding mechanism according to the present invention; Figure 8 It is a schematic sectional structure diagram of the grinding mechanism according to the present invention; Figure 9 It is a schematic structural diagram of the blocking mechanism according to the present invention; Figure 10 It is a schematic partial structure diagram of the grinding mechanism according to the present invention.
[0020] In the figure: 1, frame; 2, filtering mechanism; 3, intake pipe; 4, connecting frame; 5, connecting mechanism; 6, grinding mechanism; 7, connecting pipe; 21, inclined box; 22, connecting pipe; 23, filtering box; 24, first rolling bearing; 25, partition board; 26, inclined pipe; 27, filter plate; 28, collection box; 29, slag discharge pipe; 51, fixing ring; 52, intake box; 53, connecting box; 54, second rolling bearing; 55, rotating box; 56, grinding ring; 57, limiting ring; 58, scraping rod; 59, first spring; 61, fixing frame; 62, stepping motor; 63, rotating rod; 64, gear; 65, exhaust box; 66, filter cylinder; 67, toothed ring; 68, blocking mechanism; 69, breathable plate; 610, cone barrel; 611, support frame; 612, threaded column; 613, funnel; 614, stirring plate; 681, sliding plate; 682, second spring; 683, blocking plate; 684, support rod; 685, sealing ring. Detailed Description of the Invention
[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and enable those of ordinary skill in the art to understand the present invention and thus design various embodiments with various modifications suitable for specific purposes. As Figures 1 - 10 shown, the present invention provides a technical solution: a wet metallurgy waste gas treatment device for molybdenum concentrate, including a frame 1; A filtering mechanism 2, which is used to filter the particles in the wet metallurgy waste gas, and a connecting frame 4 fixedly connected to the outer side surface of the filtering mechanism 2. Since molybdenum concentrate MoS2 will generate MoO3 dust, unreacted ore powder or other metal oxide particles during roasting, when treating the wet metallurgy waste gas of molybdenum concentrate, it is necessary to filter the solid particulate matter and dust in the waste gas. By setting the filtering mechanism 2, when treating the wet metallurgy waste gas of molybdenum concentrate, the waste gas can be preliminarily filtered, so that the large particle metal oxide particles and ore powder generated by roasting in the waste gas can be collected, and the waste gas after preliminary filtering will flow to the next treatment step; A communicating mechanism 5, which is used to divert the filtered waste gas. By setting the communicating mechanism 5, the waste gas after preliminary filtering can be diverted, so that the waste gas can flow to the next step. At the same time, under transmission, the waste gas entering the inner cavity of the communicating mechanism 5 can be ground, so as to grind the large and light-textured particulate matter, and thus achieve the effect of preventing particulate matter from being blocked; A grinding mechanism 6, which is used to grind the particulate matter in the waste gas. By setting the grinding mechanism 6, the wet metallurgy waste gas of molybdenum concentrate after preliminary filtering can be further treated, so that the particulate matter and impurities generated by roasting in the wet metallurgy waste gas of molybdenum concentrate can be ground, and the dust and slag formed by grinding can be blocked. Finally, the filtered gas and the dust and slag formed by grinding are collected respectively; The filtering mechanism 2 is fixedly connected to the inner cavity of the frame 1, the communicating mechanism 5 is fixedly connected to one end of the connecting frame 4 away from the filtering mechanism 2, the communicating mechanism 5 is arranged directly above the filtering mechanism 2 through the connecting frame 4, and the grinding mechanism 6 is arranged on the upper surface of the filtering mechanism 2; The filtering mechanism 2 includes an inclined box 21 which is fixedly connected to the inner wall of the frame 1. A connecting pipe 22 penetrates through the upper surface of the inclined box 21, and the top end of the connecting pipe 22 penetrates through a filtering box 23. An air inlet pipe 3 penetrates through the outer side surface of the filtering box 23. By providing the inclined box 21, the bottom surface of its inner cavity is an inclined bottom surface, and the gravity of the particulate matter in the waste gas of molybdenum concentrate hydrometallurgy itself can be utilized to make the waste gas of molybdenum concentrate hydrometallurgy and metal particulate matter falling into the inner cavity of the inclined box 21 slide to the bottom of the inner cavity of the inclined box 21. Then, under the action of the air flow, the metal particulate matter and impurities at the bottom of the inner cavity of the inclined box 21 can be sucked out. By providing the filtering box 23 and the air inlet pipe 3, the waste gas generated by molybdenum concentrate hydrometallurgy can enter the inner cavity of the filtering box 23 through the air inlet pipe 3.
[0022] A partition plate 25 is fixedly connected to the inner wall of the filtering box 23, and an inclined pipe 26 is fixedly connected to the inner wall of the filtering box 23. A filter plate 27 is fixedly connected to the inner wall of the inclined pipe 26. The number of the partition plates 25 and the inclined pipes 26 is several, and several of the partition plates 25 and the inclined pipes 26 are arranged at intervals. By providing several partition plates 25 and inclined pipes 26, the inner wall of the filtering box 23 can be divided into multiple spaces, and the effect of the inclination of the inclined pipe 26 can be utilized to make the metal particulate matter in the waste gas of molybdenum concentrate hydrometallurgy entering the inner cavity of the filtering box 23 flow in the inner cavity of the inclined pipe 26. Under the action of the filter plate 27, the gas will pass through the filter plate 27 and enter the bottom of the filtering box 23, while the metal particulate matter will be blocked by the filter plate 27. A collecting box 28 is fixedly connected to the side of the inclined pipe 26 far away from the inner wall of the filtering box 23. The collecting box 28 is communicated with the end of the inclined pipe 26. A slag discharge pipe 29 penetrates through the lower surface of the collecting box 28, and the slag discharge pipe 29 penetrates through the inclined box 21 and extends to the upper surface of the inclined box 21. A first rolling bearing 24 penetrates through the upper surface of the filtering box 23. By providing the collecting box 28, it can be communicated with the bottom end of the inclined pipe 26. Then, under the action of the inclined pipe 26 and the filter plate 27, the metal particulate matter enters the inner cavity of the collecting box 28, and then it is collected through the slag discharge pipe 29, so that the collected metal particulate matter can be recycled and reused in the subsequent process.
[0023] A communicating pipe 7 penetrates through the outer side surface of the inclined box 21. The communicating mechanism 5 includes a fixing ring 51 which is fixedly connected to the top end of the connecting frame 4. An air inlet box 52 is fixedly connected to the inner wall of the fixing ring 51. The top end of the air inlet box 52 is fixedly connected to one end of the communicating pipe 7 away from the inclined box 21. A connecting box 53 is fixedly connected to the outer surface of the air inlet box 52. A second rolling bearing 54 is fixedly connected to the outer surface of the connecting box 53. The outer ring of the second rolling bearing 54 is fixedly connected to a rotating box 55. By providing the communicating pipe 7, the inclined box 21 can be communicated with the air inlet box 52, so that the waste gas and metal particles in the inner cavity of the inclined box 21 can enter the inner cavity of the air inlet box 52. By providing the second rolling bearing 54, the rotating box 55 can stably rotate on the outer surface of the air inlet box 52. A grinding ring 56 is fixedly connected to the inner wall of the air inlet box 52. A limiting ring 57 is fixedly connected to the lower surface of the air inlet box 52. The number of the limiting rings 57 is three, and the three limiting rings 57 are evenly distributed. A scraping rod 58 is slidably connected to the inner cavity of the limiting ring 57. A first spring 59 is sleeved on the outer surface of the scraping rod 58. The end of the first spring 59 is fixedly connected to the outer surface of the limiting ring 57. By providing the grinding ring 56, it can cooperate with the grinding mechanism 6 to grind the metal particles and ore powder slag in the waste gas of the wet metallurgy of molybdenum concentrate entering the inner cavity of the air inlet box 52, so that the waste can be fully utilized when the molybdenum concentrate waste is recycled and processed subsequently. By providing the limiting ring 57, the scraping rod 58 can be limited, so that the scraping rod 58 can produce a lateral movement effect in the inner cavity of the limiting ring 57. By providing the first spring 59, the scraping rod 58 can be extruded, so that the scraping rod 58 is always subjected to a force towards the grinding mechanism 6, and the slag stuck to the grinding mechanism 6 can be scraped off.
[0024] The grinding mechanism 6 includes a fixed frame 61, which is fixedly connected to the upper surface of the filter box 23. A stepping motor 62 is fixedly connected to the inner cavity of the fixed frame 61. The output end of the stepping motor 62 is installed with a rotating rod 63 through a coupling. The top end of the rotating rod 63 is fixedly connected with a gear 64. A toothed ring 67 is fixedly connected to the outer surface of the rotating box 55. The toothed ring 67 meshes with the gear 64. By setting the stepping motor 62, after the power is connected and the switch is turned on, the rotating rod 63 can drive the toothed ring 67 to rotate, and then mesh with the gear 64, achieving the effect of rotating the rotating box 55. The grinding mechanism 6 further includes a filter cylinder 66, which is fixedly connected to the lower surface of the rotating box 55. An exhaust box 65 is sleeved on the outer surface of the filter cylinder 66. Exhaust holes are opened on the lower surface of the exhaust box 65. By setting the filter cylinder 66, the particulate matter in the waste gas of molybdenum concentrate hydrometallurgy can be blocked, and the gas can penetrate through the filter cylinder 66 and flow out. The filter cylinder 66 is made of a metal cylinder with many breathable holes on the outer layer and a breathable filter mesh cloth on the inner layer, which can allow the gas in the air flow to pass through the filter cylinder 66 and flow out, while the particulate matter will be blocked inside. By opening the exhaust holes on the lower surface of the exhaust box 65, the air flow entering the inner cavity of the exhaust box 65 can be discharged from the exhaust box 65 through the exhaust holes. A funnel 613 is fixedly connected to the lower surface of the exhaust box 65. The funnel 613 is fixedly connected to the inner ring of the first rolling bearing 24. The bottom end of the funnel 613 penetrates through the collection box 28, and the bottom end of the funnel 613 is rotatably connected to the inner cavity of the collection box 28. A stirring plate 614 is fixedly connected to the outer surface of the funnel 613 located in the inner cavity of the filter box 23. By setting the funnel 613, the ground powder and metal particles can fall into the inner cavity of the funnel 613 and finally flow into the inner cavity of the collection box 28 through the holes at the bottom. By setting the first rolling bearing 24, the funnel 613 can rotate more stably in the inner cavity of the filter box 23 when rotating. By setting the stirring plate 614, when the funnel 613 rotates, the gas and particulate matter in the inner cavity of the filter box 23 can be stirred, thereby accelerating the filtration work of the waste gas of molybdenum concentrate hydrometallurgy.
[0025] A ventilation plate 69 is fixedly connected to the inner wall of the rotating box 55. A conical barrel 610 is fixedly connected to the inner surface of the ventilation plate 69. A support frame 611 is fixedly connected to the outer surface of the conical barrel 610. A threaded column 612 is fixedly connected to the top end of the support frame 611. A spiral groove is formed on the outer surface of the threaded column 612. The scraping rod 58 is in extrusion fit with the spiral groove formed on the outer surface of the threaded column 612. By providing the ventilation plate 69, while enabling the air flow to circulate, it can support the conical barrel 610. By providing the threaded column 612, when the rotating box 55 drives the ventilation plate 69 to rotate, the threaded column 612 can rotate in the inner cavity of the rotating box 55, thereby generating a downward air flow, enabling the air in the inner cavity of the filter box 23 to be inhaled into the inner cavity of the rotating box 55 and come into contact with the grinding ring 56, thereby grinding and pulverizing the metal particles and minerals in the waste gas of molybdenum concentrate hydrometallurgy. A blocking mechanism 68 is slidably connected to the inner cavity of the exhaust box 65. The blocking mechanism 68 includes a sliding plate 681 which is slidably connected to the inner cavity of the exhaust box 65. A second spring 682 is fixedly connected to the lower surface of the sliding plate 681. The bottom end of the second spring 682 is fixedly connected to the bottom surface of the inner cavity of the exhaust box 65. A blocking plate 683 is fixedly connected to the upper surface of the sliding plate 681. The blocking plate 683 is in frictional fit with the inner surface of the exhaust box 65. A support rod 684 is fixedly connected to the outer surface of the blocking plate 683. A sealing ring 685 is fixedly connected to the top end of the support rod 684. The sealing ring 685 is in extrusion fit with the outer surface of the conical barrel 610. By providing the sliding plate 681, a vertically up-and-down movement effect can be generated in the inner cavity of the exhaust box 65. By providing the second spring 682, the lower surface of the sliding plate 681 can be extruded, and thus, after the sliding plate 681 moves, it can rebound. By providing the blocking plate 683, when the sliding plate 681 moves up and down, it can prevent the holes on the inner surface of the exhaust box 65 from opening and the air flow from flowing out. By providing the sealing ring 685, when the sliding plate 681 moves downward, the sealing ring 685 can contact the outer surface of the conical barrel 610, thereby preventing the gas and powder from flowing out through the gap on the outer surface of the conical barrel 610.
[0026] Working principle: During use, the operator connects the exhaust outlet of the waste gas generated by the hydrometallurgy of molybdenum concentrate to the intake pipe 3. Then, the stepping motor 62 is connected to the power supply and the switch is turned on, so that the rotating rod 63 drives the gear 64 to rotate. When the gear 64 rotates, it drives the toothed ring 67 to rotate, thereby causing the rotating box 55 and the exhaust box 65 to rotate. When the rotating box 55 rotates, the threaded column 612 rotates with the rotating box 55, and at the same time makes the air flow downward, thereby generating suction in the intake pipe 3 and sucking the waste gas of the hydrometallurgy of molybdenum concentrate into the inner cavity of the filter box 23. After the waste gas of the hydrometallurgy of molybdenum concentrate enters the inner cavity of the filter box 23, due to the action of the inclined pipe 26, the gas enters the inner cavity of the inclined box 21 through the connecting pipe 22, while the large metal particles enter the inner cavity of the collection box 28. The waste gas of the hydrometallurgy of molybdenum concentrate after preliminary filtration enters the inner cavity of the intake box 52 through the connecting pipe 7. Then, under the grinding of the threaded column 612 and the grinding ring 56, the particulate matter in the waste gas is ground into powder and falls into the inner cavity of the filter cylinder 66, and the gas passes through the filter cylinder 66 and enters the inner cavity of the exhaust box 65, and finally discharges from the device. Then, the stepping motor 62 is stopped. Without the blowing of the air flow, the sliding plate 681 moves upward under the extrusion of the second spring 682, thereby making the sealing ring 685 move upward, and then the powder flows into the inner cavity of the funnel 613 and finally enters the inner cavity of the collection box 28.
[0027] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art and related fields without creative efforts shall fall within the scope of protection of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention, unless otherwise specified and limited, are implemented according to the conventional means in the art.
Claims
1. A wet metallurgy waste gas treatment device for molybdenum concentrate, characterized in that, Including: Frame (1); Filter mechanism (2), which is used to filter the particles in the hydrometallurgy waste gas, and a connecting frame (4) fixedly connected to the outer side of the filter mechanism (2); Connecting mechanism (5), which is used to divert the filtered waste gas; Grinding mechanism (6), which is used to grind the particulate matter in the waste gas; The filter mechanism (2) is fixedly connected to the inner cavity of the frame (1), the connecting mechanism (5) is fixedly connected to one end of the connecting frame (4) away from the filter mechanism (2), the connecting mechanism (5) is arranged directly above the filter mechanism (2) through the connecting frame (4), and the grinding mechanism (6) is arranged on the upper surface of the filter mechanism (2); The filter mechanism (2) includes an inclined box (21), the inclined box (21) is fixedly connected to the inner wall of the frame (1), a connecting pipe (22) penetrates through the upper surface of the inclined box (21), the top end of the connecting pipe (22) penetrates through a filter box (23), and an air inlet pipe (3) penetrates through the outer side of the filter box (23).
2. The wet metallurgy waste gas treatment equipment for molybdenum concentrate according to claim 1, characterized in that: A partition (25) is fixedly connected to the inner wall of the filter box (23), an inclined pipe (26) is fixedly connected to the inner wall of the filter box (23), a filter plate (27) is fixedly connected to the inner wall of the inclined pipe (26), the number of the partitions (25) and the inclined pipes (26) is several, and several of the partitions (25) and the inclined pipes (26) are arranged at intervals.
3. The wet metallurgy waste gas treatment equipment for molybdenum concentrate according to claim 2, characterized in that: A collection box (28) is fixedly connected to one side of the inclined pipe (26) away from the inner wall of the filter box (23), the collection box (28) is communicated with the end of the inclined pipe (26), a slag discharge pipe (29) penetrates through the lower surface of the collection box (28), the slag discharge pipe (29) penetrates through the inclined box (21) and extends to the upper surface of the inclined box (21), and a first rolling bearing (24) penetrates through the upper surface of the filter box (23).
4. The wet metallurgy waste gas treatment equipment for molybdenum concentrate according to claim 3, characterized in that: A communicating pipe (7) penetrates through the outer side of the inclined box (21), the connecting mechanism (5) includes a fixing ring (51), the fixing ring (51) is fixedly connected to the top end of the connecting frame (4), an air inlet box (52) is fixedly connected to the inner wall of the fixing ring (51), the top end of the air inlet box (52) is fixedly connected to one end of the communicating pipe (7) away from the inclined box (21), a connecting box (53) is fixedly connected to the outer surface of the air inlet box (52), a second rolling bearing (54) is fixedly connected to the outer surface of the connecting box (53), and a rotating box (55) is fixedly connected to the outer ring of the second rolling bearing (54).
5. The wet metallurgy waste gas treatment equipment for molybdenum concentrate according to claim 4, characterized in that: A grinding ring (56) is fixedly connected to the inner wall of the air inlet box (52). A limiting ring (57) is fixedly connected to the lower surface of the air inlet box (52). The number of the limiting rings (57) is three, and the three limiting rings (57) are evenly distributed. A scraping rod (58) is slidably connected to the inner cavity of the limiting ring (57). A first spring (59) is sleeved on the outer surface of the scraping rod (58), and the end of the first spring (59) is fixedly connected to the outer surface of the limiting ring (57).
6. The wet metallurgy waste gas treatment equipment for molybdenum concentrate according to claim 5, characterized in that: The grinding mechanism (6) includes a fixing frame (61). The fixing frame (61) is fixedly connected to the upper surface of the filter box (23). A stepping motor (62) is fixedly connected to the inner cavity of the fixing frame (61). A rotating rod (63) is installed at the output end of the stepping motor (62) through a coupling. A gear (64) is fixedly connected to the top end of the rotating rod (63). A toothed ring (67) is fixedly connected to the outer surface of the rotating box (55), and the toothed ring (67) is engaged with the gear (64).
7. An apparatus for treating waste gas in the hydrometallurgy of molybdenum concentrate according to claim 6, characterized in that: The grinding mechanism (6) further includes a filter cylinder (66). The filter cylinder (66) is fixedly connected to the lower surface of the rotating box (55). An exhaust box (65) is sleeved on the outer surface of the filter cylinder (66). Exhaust holes are formed in the lower surface of the exhaust box (65).
8. The wet metallurgy waste gas treatment equipment for molybdenum concentrate according to claim 7, characterized in that: A funnel (613) is fixedly connected to the lower surface of the exhaust box (65). The funnel (613) is fixedly connected to the inner ring of the first rolling bearing (24). The bottom end of the funnel (613) penetrates through the collection box (28), and the bottom end of the funnel (613) is rotatably connected to the inner cavity of the collection box (28). A stirring plate (614) is fixedly connected to the outer surface of the funnel (613) located in the inner cavity of the filter box (23).
9. The wet metallurgy waste gas treatment equipment for molybdenum concentrate according to claim 8, characterized in that: A breathable plate (69) is fixedly connected to the inner wall of the rotating box (55). A conical barrel (610) is fixedly connected to the inner surface of the breathable plate (69). A support frame (611) is fixedly connected to the outer surface of the conical barrel (610). A threaded column (612) is fixedly connected to the top end of the support frame (611). A spiral groove is formed on the outer surface of the threaded column (612), and the scraping rod (58) is in extrusion fit with the spiral groove formed on the outer surface of the threaded column (612).
10. The wet metallurgy waste gas treatment equipment for molybdenum concentrate according to claim 9, characterized in that: A blocking mechanism (68) is slidably connected to the inner cavity of the exhaust box (65). The blocking mechanism (68) includes a sliding plate (681) which is slidably connected to the inner cavity of the exhaust box (65). A second spring (682) is fixedly connected to the lower surface of the sliding plate (681), and the bottom end of the second spring (682) is fixedly connected to the bottom surface of the inner cavity of the exhaust box (65). A blocking plate (683) is fixedly connected to the upper surface of the sliding plate (681). The blocking plate (683) is frictionally adapted to the inner surface of the exhaust box (65). A support rod (684) is fixedly connected to the outer surface of the blocking plate (683), and a sealing ring (685) is fixedly connected to the top end of the support rod (684). The sealing ring (685) is extrusion-fitted to the outer surface of the conical barrel (610).