Sediment filtering and washing device for high-purity molybdenum trioxide production

Abstract

The utility model discloses a precipitate filtering and washing device for high purity molybdenum trioxide production, which comprises a treatment tank, a fixed shaft is arranged in the center of the lower part of the treatment tank, a rotary drum is arranged at the top of the fixed shaft, a rotary support member is arranged between the upper end edge of the rotary drum and the inner wall of the treatment tank, and a water permeable hole is formed in the side wall of the rotary drum. The utility model relates to the technical field of molybdenum trioxide production, low-temperature pure water for cleaning is injected into the filter screen cylinder through the water injection pipe, under the stirring action, the contact frequency and the contact area between precipitates and the pure water are increased, the water washing working speed is improved, and after cleaning is carried out for a certain period of time, the precipitates are separated from the filter screen cylinder. And a driving control mechanism at the lower part of the treatment tank is started to perform rotation control on the fixed shaft, so that rotation control on the rotary drum and the filter screen drum is realized, liquid in the filter screen drum is thrown out under the action of centrifugal force, and a drain valve is opened to drain water.

Description

Technical Field

[0001] This utility model relates to the field of molybdenum trioxide production technology, specifically to a precipitate filtration and washing device for the production of high-purity molybdenum trioxide. Background Technology

[0002] Among the methods for preparing high-purity molybdenum trioxide, the solution method is relatively efficient. This involves dissolving an appropriate amount of molybdic acid in water, adding a suitable amount of ammonia to precipitate the molybdenum trioxide. To obtain high-purity molybdenum trioxide, it is usually necessary to separate the precipitate (molybdenum trioxide) from byproducts (such as unreacted raw materials, impurities, or residual reagents) by washing with water. After washing, filtration, and drying, a high-purity molybdenum trioxide product is obtained. In existing technologies, filtration devices (such as vacuum filters or filter presses) are typically used in conjunction with water washing equipment to treat the molybdenum trioxide precipitate, achieving both washing and solid-liquid separation. However, the connection between the filtration device and the water washing equipment is complex, the operation is cumbersome, and the degree of automation is low. Therefore, this paper addresses these issues through in-depth research. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a precipitate filtration and washing device for the production of high-purity molybdenum trioxide, which solves the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a precipitate filtration and washing device for high-purity molybdenum trioxide production, comprising a treatment tank, a fixed shaft at the lower center of the treatment tank, a rotating cylinder mounted on the top of the fixed shaft, a rotating support member between the upper end of the rotating cylinder and the inner wall of the treatment tank, water-permeable holes on the side wall of the rotating cylinder, an annular seat at the top of the rotating cylinder, a limit post on the annular seat, a filter screen cylinder placed inside the rotating cylinder, a connecting seat along the upper edge of the filter screen cylinder, a lifting lug mounted on one side of the connecting seat, and the connecting seat and the limit post being inserted into each other. The filter cylinder is equipped with filter cloth. The lower end of the fixed shaft is connected to the drive control mechanism. A water collection hopper is provided at the bottom of the treatment tank. A drain valve and a drain pipe are connected to the lower end of the water collection hopper. An electric turntable is provided on one side of the treatment tank. An L-shaped bracket is provided on the electric turntable. A vertical control mechanism is provided on the L-shaped bracket. A cover plate is provided on the moving end of the vertical control mechanism. A stirring control component is provided on the upper part of the cover plate. An impact stirring component is installed at the output end of the stirring control component. A water injection pipe is installed on the cover plate. One end of the water injection pipe is connected to the water supply pipeline.

[0005] The aforementioned rotating drum and filter screen cylinder have a uniform conical bucket-shaped structure.

[0006] The aforementioned rotating support component includes a fixed ring, an annular guide rail, and an arc-shaped slider. The fixed ring is fixed to the inner wall of the processing tank, the annular guide rail is disposed on the fixed ring, and the arc-shaped slider is slidably fitted on the annular guide rail and fixedly connected to the annular seat.

[0007] The aforementioned vertical control mechanism includes a hydraulic cylinder, a guide seat, a guide rod, and a movable frame. The hydraulic cylinder is positioned above the crossbeam of the L-shaped frame. The guide seats are symmetrically arranged on both sides of the hydraulic cylinder. The guide rod is slidably inserted into the guide seat. The movable frame is positioned on the lower end of the guide rod and connected to the telescopic end of the hydraulic cylinder. The lower end of the movable frame is connected to the cover plate.

[0008] The aforementioned stirring control assembly includes a servo motor, a reducer, and an output shaft. The reducer is mounted on the cover plate and its input end is connected to the drive end of the servo motor. The output shaft is rotatably mounted at the center of the cover plate and its lower end is connected to the impact stirring component, while its upper end is connected to the output end of the reducer.

[0009] The aforementioned impact mixing component includes a mixing shaft and a turbine-type mixing blade. The upper end of the mixing shaft is assembled and connected to the output shaft, and the turbine-type mixing blade is mounted on the lower end of the mixing shaft.

[0010] This invention provides a precipitate filtration and washing device for the production of high-purity molybdenum trioxide. This high-purity molybdenum trioxide (MoTrioxide) production precipitate filtration and washing device adds the prepared MoTrioxide precipitate into a filter cylinder and controls the vertical control mechanism to descend, allowing the stirring and impact components to insert into the precipitate. Low-temperature pure water for cleaning is added to the filter cylinder through a water injection pipe. Under stirring, the contact frequency and contact area between the precipitate and pure water are increased, improving the washing speed. After a certain washing time, the drive control mechanism at the bottom of the treatment tank is activated to rotate the fixed shaft, thereby controlling the rotation of the rotating cylinder and filter cylinder. Under centrifugal force, the liquid in the filter cylinder is thrown out, and the drain valve is opened to drain the water. The above steps of water injection, stirring, centrifugal separation, and drainage are repeated until the washing target is achieved. Afterward, no more water is injected. After centrifugal dehydration, the cover plate is moved out of its current position, and the filter cylinder along with the MoTrioxide precipitate is removed. The device has a reasonable structure and high equipment integration, enabling automated and continuous washing and filtration operations, significantly improving the processing speed of high-purity MoTrioxide. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the main structure of a precipitate filtration and washing device for the production of high-purity molybdenum trioxide according to the present invention.

[0012] Figure 2 This utility model Figure 1 A magnified schematic diagram of the structure at position a.

[0013] Figure 3 This is an isometric structural diagram of the filter cylinder described in this utility model.

[0014] In the diagram: 1. Processing tank; 2. Fixed shaft; 3. Rotary drum; 4. Annular seat; 5. Limiting post; 6. Filter screen cylinder; 7. Connecting seat; 8. Lifting lug; 9. Filter cloth; 10. Water collection hopper; 11. Drain valve; 12. Drain pipe; 13. Electric turntable; 14. L-shaped bracket; 15. Cover plate; 16. Water injection pipe; 17. Water supply pipeline; 18. Fixed ring; 19. Annular guide rail; 20. Arc-shaped slider; 21. Hydraulic cylinder; 22. Guide seat; 23. Guide rod; 24. Moving frame; 25. Servo motor; 26. Reducer; 27. Output shaft; 28. Stirring shaft; 29. ​​Turbine-type stirring paddle. Detailed Implementation

[0015] 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.

[0016] Example: Refer to the appendix of the instruction manual Figure 1-3As can be seen, this application specifically designs a precipitate filtration and washing device for the production of high-purity molybdenum trioxide. A fixed shaft 2 is located at the center of the lower part of the treatment tank 1. A rotating cylinder 3 is installed on the top of the fixed shaft 2. A rotating support component is provided between the upper edge of the rotating cylinder 3 and the inner wall of the treatment tank 1. Water permeable holes are provided on the side wall of the rotating cylinder 3. An annular seat 4 is provided on the top of the rotating cylinder 3, and a limiting post 5 is provided on the annular seat 4. A filter screen cylinder 6 is placed inside the rotating cylinder 3. A connecting seat 7 is provided along the upper edge of the filter screen cylinder 6. A lifting lug 8 is installed on one side of the connecting seat 7. The connecting seat 7 and the limiting post 5 are inserted into each other. The filter screen cylinder 6... The system is equipped with a uniformly conical bucket-shaped structure consisting of a filter cloth 9, a rotating drum 3, and a filter screen cylinder 6, which effectively increases the water permeability area. The lower end of the fixed shaft 2 is connected to the drive control mechanism. A water collection hopper 10 is installed at the bottom of the treatment tank 1, and a drain valve 11 and a drain pipe 12 are connected to the lower end of the water collection hopper 10. An electric turntable 13 is installed on one side of the treatment tank 1, and an L-shaped bracket 14 is installed on the electric turntable 13. A vertical control mechanism is installed on the L-shaped bracket 14, and a cover plate 15 is installed on the moving end of the vertical control mechanism. A stirring control component is installed on the upper part of the cover plate 15, and the output end of the stirring control component is equipped with... The impact stirring component has a water injection pipe 16 installed on the cover plate 15. One end of the water injection pipe 16 is connected to the water supply pipe 17. During use, the prepared molybdenum trioxide precipitate is added into the filter screen cylinder 6, and the vertical control mechanism is controlled to move downward, so that the stirring and impact component is inserted into the precipitate. Low-temperature pure water for cleaning is added into the filter screen cylinder 6 through the water injection pipe 16. Under the stirring action, the contact frequency and contact area between the precipitate and the pure water are increased, thereby improving the water washing rate. After cleaning for a certain period of time, the drive control mechanism at the bottom of the treatment tank 1 is activated to rotate the fixed shaft 2. The system employs dynamic control to achieve rotational control of the rotating drum 3 and the filter cylinder 6. Under the action of centrifugal force, the liquid inside the filter cylinder 6 is thrown out, and the drain valve 11 is opened to drain the water. The above steps of water injection, stirring and washing, centrifugal separation, and drainage are repeated until the water washing operation target is achieved. After that, water injection is no longer performed. After centrifugal dehydration, the cover plate 15 is moved out of its current position, and the filter cylinder 6 along with the molybdenum trioxide precipitate can be removed. The system has a reasonable structure and high equipment integration, which can realize automated and continuous operation of water washing filtration, and will greatly improve the processing speed of high-purity molybdenum trioxide.

[0017] In the specific implementation process, the above-mentioned rotating support component includes a fixed ring 18, an annular guide rail 19, and an arc-shaped slider 20. The fixed ring 18 is fixed on the inner wall of the treatment tank 1, the annular guide rail 19 is set on the fixed ring 18, and the arc-shaped slider 20 is slidably fitted on the annular guide rail 19 and fixedly connected to the annular seat 4. When in use, the lower drive control mechanism is started, and the fixed shaft 2 is driven to rotate by the drive control mechanism, thereby driving the rotating drum 3 to rotate. During the rotation of the rotating drum 3, the annular seat 4 on the side wall of the rotating drum 3 slides along the annular guide rail 19 under the limiting action of the arc-shaped slider 20, which can effectively ensure the smooth rotation of the rotating drum 3, realize high-speed centrifugal rotation, and thus effectively improve the centrifugal filtration speed.

[0018] In specific implementation, as a preferred configuration, the aforementioned vertical control mechanism includes a hydraulic cylinder 21, a guide seat 22, a guide rod 23, and a movable frame 24. The hydraulic cylinder 21 is positioned above the crossbeam of the L-shaped frame, the guide seats 22 are symmetrically arranged on both sides of the hydraulic cylinder 21, the guide rod 23 is slidably inserted into the guide seat 22, and the movable frame 24 is positioned on the lower end of the guide rod 23 and connected to the telescopic end of the hydraulic cylinder 21. The lower end of the movable frame 24 is connected to the cover plate 15. The stirring control component includes a servo motor 25 and a speed reducer. The device includes a reducer 26 and an output shaft 27. The reducer 26 is mounted on the cover plate 15 and its input end is connected to the drive end of the servo motor 25. The output shaft 27 is rotatably mounted at the center of the cover plate 15, with its lower end connected to the impact stirring component and its upper end connected to the output end of the reducer 26. The impact stirring component includes a stirring shaft 28 and a turbine-type stirring paddle 29. The upper end of the stirring shaft 28 is assembled and connected to the output shaft 27, and the turbine-type stirring paddle 29 is mounted on the lower end of the stirring shaft 28. In use, the prepared trioxide is... Molybdenum precipitate is added into the filter cylinder 6, and the electric turntable 13 is rotated to align the cover plate 15 below the L-shaped frame with the treatment tank 1. Water is injected into the filter cylinder 6 through the water supply pipe 17 and the water injection pipe 16. The hydraulic cylinder 21 on the L-shaped frame is activated, which pushes the moving frame 24 downward vertically under the limiting action of the guide rod 23. During this process, the servo motor 25 on the moving frame 24 is activated, and the output shaft 27 is moved by the cooperation of the servo motor 25 and the reducer 26. The rotation control of the output shaft 27 drives the stirring shaft 28 and the turbine stirring paddle 29 to rotate synchronously, agitating the molybdenum trioxide precipitate. Under the stirring action, the contact frequency and contact area between the precipitate and pure water are increased, thereby improving the washing speed. After the washing and filtration operations are completed, the hydraulic cylinder 21 is reset, and the electric turntable 13 is also reset. The filter screen 6 is removed from the treatment tank 1 by the hoisting equipment, and the cleaned molybdenum trioxide precipitate is transferred to the drying equipment for further processing.

[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precipitate filtration and water washing device for high-purity molybdenum trioxide production, comprising a treatment tank, characterized in that, The lower center of the treatment tank is provided with a fixed shaft, the top of the fixed shaft is provided with a rotating drum, the upper end of the rotating drum is provided with a rotating support member along the inner wall of the treatment tank, the side wall of the rotating drum is provided with a water permeable hole, the top of the rotating drum is provided with an annular seat, the annular seat is provided with a limiting column, a filter screen cylinder is placed in the rotating drum, the upper end of the filter screen cylinder is provided with a connecting seat, the connecting seat is provided with a lifting lug on one side, the connecting seat is inserted and matched with the limiting column, the filter screen cylinder is provided with filter cloth, the lower end of the fixed shaft is connected with a driving control mechanism, the lower part of the treatment tank is provided with a water collecting hopper, the lower end of the water collecting hopper is connected with a drain valve and a drain pipeline, one side of the treatment tank is provided with an electric rotating table, the electric rotating table is provided with an L-shaped support, the L-shaped support is provided with a vertical control mechanism, the moving end of the vertical control mechanism is provided with a cover plate, the upper part of the cover plate is provided with a stirring control assembly, the output end of the stirring control assembly is provided with an impact stirring member, the cover plate is provided with a water injection pipe, one end of the water injection pipe is connected with a water supply pipeline.

2. The precipitate filtering and washing device for producing high-purity molybdenum trioxide according to claim 1, characterized in that, The rotating drum and the filter screen cylinder are uniformly provided with a conical hopper structure.

3. The precipitate filtering and washing device for producing high-purity molybdenum trioxide according to claim 1, characterized in that, The rotating support member comprises a fixed ring, an annular guide rail and an arc-shaped sliding block, the fixed ring is fixedly arranged on the inner side wall of the treatment tank, the annular guide rail is arranged on the fixed ring, and the arc-shaped sliding block is slidingly sleeved on the annular guide rail and fixedly connected with the annular seat.

4. The precipitate filtering and washing device for producing high-purity molybdenum trioxide according to claim 1, characterized in that, The vertical control mechanism comprises a hydraulic cylinder, a guide seat, a guide rod and a moving frame, the hydraulic cylinder is arranged above the cross beam of the L-shaped frame, the guide seats are symmetrically arranged on both sides of the hydraulic cylinder, the guide rod is slidingly inserted into the guide seats, and the moving frame is arranged on the lower end of the guide rod and connected with the telescopic end of the hydraulic cylinder.

5. The precipitate filtering and washing device for producing high-purity molybdenum trioxide according to claim 1, characterized in that, The stirring control assembly comprises a servo motor, a speed reducer and an output shaft, the speed reducer is arranged on the cover plate and connected with the driving end of the servo motor, the output shaft is rotatably arranged at the center position of the cover plate and connected with the impact stirring member at the lower end and the speed reducer at the upper end.

6. The precipitate filtering and washing device for producing high-purity molybdenum trioxide according to claim 5, characterized in that, The impact stirring member comprises a stirring shaft and a turbine type stirring paddle, the upper end of the stirring shaft is assembled and connected with the output shaft, and the turbine type stirring paddle is sleeved on the lower end of the stirring shaft.

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