Filter pressing device for tungsten ammonia-free smelting
By designing a pressure filter device for tungsten ammonia-free smelting, the problem of low efficiency in ammonia nitrogen wastewater treatment and recovery was solved, achieving efficient and low-cost ammonia nitrogen wastewater treatment and recovery, and improving the space utilization and automation level of the equipment.
Patent Information
- Application Number
- CN202423284210.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Traditional tungsten smelting equipment suffers from low efficiency, high energy consumption, and high cost in the treatment and recovery of ammonia water, and existing equipment occupies a large space, affecting the efficiency and environment of tungsten smelting.
A pressure filter device for tungsten ammonia-free smelting was designed, including a frame, a reaction tank, a feeding mechanism, and a pressure filter mechanism. Solid-liquid separation is achieved through automated control, reducing manual operation and improving space utilization.
It achieves efficient treatment and recycling of ammonia nitrogen wastewater, reduces energy consumption and costs, while also reducing equipment space occupation and improving automation level.
Smart Images
Figure CN223716496U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to tungsten smelting equipment technical field, concretely relates to a kind of pressure filtration devices for tungsten ammonia-free smelting. BACKGROUND
[0002] Tungsten is an important metal element, known for its extremely high melting point (3422℃) and density (19.35 g / cm³), which makes it one of the most important functional materials in industry and high-tech applications. Tungsten and its alloys are widely used in aerospace, atomic energy, shipbuilding, automotive industry, electrical industry, electronic industry and chemical industry, etc.
[0003] In traditional tungsten smelting technology, ammonia water or ammonium chloride is often used as leaching agent, which inevitably produces a large amount of ammonia-nitrogen wastewater in the process of tungsten production. If these ammonia-nitrogen wastewater is directly discharged, it will cause serious damage to the environment, so the treatment and recycling of ammonia-nitrogen wastewater have become an important problem faced by the tungsten smelting industry. In the traditional method, there are problems such as low ammonia-nitrogen recovery rate, high energy consumption and high cost in the treatment and recycling of ammonia-nitrogen wastewater. These problems not only increase the cost of tungsten smelting, but also pose a potential threat to the environment. Therefore, the advantages of tungsten ammonia-free smelting technology are increasingly prominent, which can reduce the generation of ammonia-nitrogen pollutants from the source, reduce the difficulty and cost of governance, and provide support for the green transformation of tungsten smelting industry.
[0004] In the tungsten ammonia-free smelting technology developed by our company, scheelite is obtained after acidolysis and pressure filtration washing, and tungstic acid and calcium sulfate mixed slag is obtained. The mixed slag is leached by using a complexing agent, and a crude tungstic acid solution and leaching residue are obtained by pressure filtration. The crude tungstic acid is purified to obtain a pure tungstic acid solution. The pure tungstic acid solution is precipitated, filtered, centrifuged, dried and calcined to obtain tungsten trioxide. According to the needs, tungsten is prepared. In actual production, the reaction vessel and pressure filter required for the leaching and pressure filtration of the mixed slag of tungstic acid and calcium sulfate using the complexing agent are relatively large in size and occupy a large space. Therefore, it is necessary to design a compact device for the leaching and subsequent pressure filtration of the mixed slag of tungstic acid and calcium sulfate. SUMMARY
[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a pressure filtration device for tungsten ammonia-free smelting, comprising:
[0006] A rack is fixedly connected with a reaction tank, a discharge port is arranged at the lower left side of the reaction tank, a pushing mechanism is arranged on the upper part of the rack above the reaction tank for pushing the material in the reaction tank to the discharge port, a pressure filtration mechanism for solid-liquid separation is arranged on the rack below the reaction tank, the pressure filtration mechanism comprises a pressure filtration cylinder, a pressure roller is arranged inside the pressure filtration cylinder, a feeding port is arranged on the upper left side of the pressure filtration cylinder, the feeding port is communicated with the discharge port, a through hole is formed on the lower side of the pressure filtration cylinder for liquid discharge, and a discharge port is arranged at the right end of the pressure filtration cylinder for solid discharge.
[0007] Further, the pushing mechanism comprises a pushing plate, an electric push rod, a pull rod, two screw rods and two electric motors, the two electric motors are fixedly connected to the top right side of the frame, the two screw rods are rotatably connected to the top of the frame, the right ends of the screw rods are fixedly connected to the output shafts of the electric motors, the front and rear ends of the pull rod are engaged with the two screw rods respectively, the fixed end of the electric push rod is fixedly connected to the middle of the pull rod, and the telescopic end of the electric push rod is fixedly connected to the pushing plate.
[0008] Further, the left end of the compression roller has a smaller diameter than the right end.
[0009] Further, the compression roller is fixedly connected with a spiral plate.
[0010] Further, a filter screen is arranged below the filter cylinder, and an electric motor is fixedly connected to the frame on the left side of the filter cylinder and used for driving the compression roller to rotate.
[0011] Further, the lower end of the reaction tank is fixedly connected with an electric motor, the output shaft of the electric motor is fixedly connected with a gear, and the lower end of the reaction tank is further fixedly connected with two groups of guide blocks on the front and rear sides, a gate is slidably connected between the two groups of guide blocks, and the gate is provided with a rack, which is engaged with the gear of the output shaft of the electric motor.
[0012] Further, a material cylinder one for containing liquid is arranged below the filter screen, and a material cylinder two for containing solid is arranged below the discharge port.
[0013] Compared with the prior art, the device has the advantages that:
[0014] 1. High space utilization rate. The reaction tank is arranged above the frame for the coordination leaching reaction of tungstic acid and calcium sulfate mixed slag, the filter mechanism is arranged below the reaction tank for separating the coarse tungstic acid solution and calcium sulfate, the material cylinder one is arranged below the filter cylinder for containing the coarse tungstic acid solution, and the material cylinder two is arranged below the right end of the filter cylinder for containing the calcium sulfate. The device has a three-dimensional structure, reduces the space occupation of the equipment, and reduces the material conveying, transferring and other operations between adjacent two processes.
[0015] 2. Automatic control of discharging. The gate is arranged to automatically open the discharge port to convey the liquid in the reaction tank to the filter mechanism after the coordination dissolution reaction is completed, and the pushing mechanism is arranged to automatically push the solid remaining in the reaction tank to the discharge port and convey the solid to the filter mechanism for filter pressing, so that manual operation is reduced and the automation level of the device is improved. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical means, creative features, purposes and effects achieved by the embodiments of the present application or the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly introduced as follows. Obviously, the drawings described below are only one embodiment of the present application, and are not all styles.
[0017] Figure 1 It is a kind of tungsten pressure filter device structure schematic diagram for use in ammonia smelting Figure 1 .
[0018] Figure 2 It is a kind of tungsten pressure filter device structure schematic diagram for use in ammonia smelting Figure 2 .
[0019] Figure 3 It is the internal structure schematic diagram of filter cylinder.
[0020] Figure 4 It is the schematic diagram when push plate pushes material.
[0021] Figure 5 It is a kind of tungsten pressure filter device bottom view for use in ammonia smelting Figure 1 .
[0022] Figure 6 It is a kind of tungsten pressure filter device bottom view for use in ammonia smelting Figure 2 .
[0023] The marks in the drawings are: 10, rack; 20, reaction tank; 201, discharge port; 202, gate; 203, guide block; 204, motor one; 30, material pushing mechanism; 301, push plate; 302, electric push rod; 303, pull rod; 304, screw rod; 305, motor two; 40, filter pressing mechanism; 401, filter pressing cylinder; 402, filter pressing roller; 403, feeding port; 404, discharging port; 405, filter screen; 406, motor three; 50, cylinder one; 60, cylinder two. DETAILED DESCRIPTION
[0024] In order to make the technical means, creative features, purposes and effects achieved by the embodiments of the present application easy to understand, the technical solutions in the embodiments of the present application will be described clearly and completely below to further illustrate the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all styles.
[0025] As Figures 1 to 6As shown, the tungsten pressure filtration device for ammonia-free smelting comprises a rack 10, a reaction tank 20 fixedly connected to the rack 10, a mixed slag of tungstic acid and calcium sulfate and a complexing agent being reacted in the reaction tank 20, a discharge port 201 arranged at the lower left end of the reaction tank 20, a pushing mechanism 30 arranged on the rack 10 above the reaction tank 20, the pushing mechanism 30 being used to push the reacted material in the reaction tank 20 to the discharge port 201, and a pressure filtration mechanism 40 arranged on the rack 10 below the reaction tank 20 and used for solid-liquid separation.
[0026] The pushing mechanism 30 comprises a push plate 301, an electric push rod 302, a pull rod 303, a lead screw 304, and two electric motors 305, the two electric motors 305 being fixedly connected to the right side of the top of the rack 10, the two lead screws 304 being rotatably connected to the top of the rack 10, the right ends of the lead screws 304 being fixedly connected to the output shafts of the electric motors 305, the front and rear ends of the pull rod 303 being engaged with the two lead screws 304 respectively, the fixed end of the electric push rod 302 being fixedly connected to the middle of the pull rod 303, and the telescopic end of the electric push rod 302 being fixedly connected to the push plate 301.
[0027] The lead screws 304 are driven to rotate by the electric motors 305, which can drive the pull rod 303, the electric push rod 302, and the push plate 301 to move left and right, and the electric push rod 302 can drive the push plate 301 to move up and down, so that the reacted material in the reaction tank 20 can be pushed to the discharge port 201.
[0028] The pressure filtration mechanism 40 comprises a pressure filtration cylinder 401, a compression roller 402, a feeding port 403, a discharging port 404, a filter screen 405, and an electric motor 406, the compression roller 402 being arranged inside the pressure filtration cylinder 401, the left end of the compression roller 402 having a smaller shaft diameter than the right end, the compression roller 402 being fixedly connected with a spiral plate, the feeding port 403 being arranged above the left side of the pressure filtration cylinder 401, the feeding port 403 being communicated with the discharge port 201, the discharging port 404 being arranged at the right end of the pressure filtration cylinder 401, the discharging port 404 being the gap between the pressure filtration cylinder 401 and the compression roller 402 and being used for solid discharging, the pressure filtration cylinder 401 being provided with a through hole at the lower side for liquid discharging, the filter screen 405 being arranged at the lower side of the through hole, and the electric motor 406 being fixedly connected to the rack 10 on the left side of the pressure filtration cylinder 401 and being used to drive the compression roller 402 to rotate.
[0029] A first material cylinder 50 for receiving liquid is arranged below the filter screen 405, and a second material cylinder 60 for receiving solid is arranged below the discharging port 404.
[0030] The material falling from the discharging port 201 into the feeding port 403 and then into the filter cylinder 401 is continuously conveyed to the right by the spiral plates on the compression roller 402. Since the left end shaft of the compression roller 402 has a smaller diameter than the right end shaft, the space for the material moving to the right becomes smaller and the extrusion force on the material becomes larger, and finally the liquid is extruded to fall into the cylinder one 50 through the through hole at the lower side of the filter cylinder 401, and the solid part is extruded to fall into the cylinder two 60 through the discharging port 404.
[0031] The reaction tank 20 is fixedly connected with a motor one 204 at the lower end, the output shaft of the motor one 204 is fixedly connected with a gear, and the reaction tank 20 is also fixedly connected with two groups of guide blocks 203 at the lower end of the front and rear sides. The two groups of guide blocks 203 are slidably connected with a gate plate 202, the gate plate 202 is provided with a rack, and the rack is engaged with the gear of the output shaft of the motor one 204. The rotation of the gear driven by the motor one 204 drives the gate plate 202 to move left and right, so as to realize the opening and closing of the discharging port 201.
[0032] The use process of the device is as follows: the rotation of the gear driven by the motor one 204 drives the gate plate 202 to move to the left, and the discharging port 201 is closed (as shown in Figure 6 The mixed slag of tungstic acid and calcium sulfate and the complexing agent are put into the reaction tank 20, and after the reaction is completed, the rotation of the gear driven by the motor one 204 drives the gate plate 202 to move to the right, and the discharging port 201 is opened (as shown in Figure 5 The liquid (mainly the crude tungstic acid solution) directly falls down, and the solid (mainly calcium sulfate) is pushed to the discharging port 201 by the pushing mechanism 30. Specifically, the electric push rod 302 is stretched to drive the push plate 301 to move downward, and then the rotation of the screw rod 304 driven by the motor two 305 drives the pull rod 303, the electric push rod 302 and the push plate 301 to move to the left, so as to push the solid to the discharging port 201. The rotation of the compression roller 402 driven by the motor three 406 continuously conveys the material falling from the discharging port 201 into the feeding port 403 and then into the filter cylinder 401 to the right, the liquid falls into the cylinder one 50 through the through hole at the lower side of the filter cylinder 401, and the solid part is extruded to fall into the cylinder two 60 through the discharging port 404.
[0033] The main technical features, basic principles and related advantages of the present application are described above. It is obvious for those skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the concept or basic characteristics of the present application. Therefore, from any point of view, the above-described embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.
[0034] In addition, it should be understood that, although the present specification is described according to each embodiment, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.
Claims
1. A filter press device for tungsten ammonia-free smelting, comprising a frame (10), characterized in that, The rack (10) is fixedly connected with a reaction tank (20), the lower left end of the reaction tank (20) is provided with a discharge port (201), the rack (10) above the reaction tank (20) is provided with a pushing mechanism (30) for pushing the material in the reaction tank (20) to the discharge port (201), the rack (10) below the reaction tank (20) is provided with a filter pressing mechanism (40) for solid-liquid separation, the filter pressing mechanism (40) comprises a filter pressing cylinder (401), the filter pressing cylinder (401) is internally provided with a compression roller (402), the left side of the filter pressing cylinder (401) is provided with an inlet (403), the inlet (403) is communicated with the discharge port (201), the filter pressing cylinder (401) is provided with a through hole at the lower side for liquid discharge, and the right end of the filter pressing cylinder (401) is provided with a discharge port (404) for solid discharge.
2. The filter press device for tungsten ammonia-free smelting according to claim 1, characterized in that, The pushing mechanism (30) comprises a push plate (301), an electric push rod (302), a pull rod (303), a lead screw (304) and a second motor (305), the front and rear second motors (305) are fixedly connected to the right side of the top of the rack (10), the front and rear lead screws (304) are rotatably connected to the top of the rack (10), the right end of the lead screw (304) is fixedly connected with the output shaft of the second motor (305), the front and rear ends of the pull rod (303) are engaged with the front and rear lead screws (304) respectively, and the fixed end of the electric push rod (302) is fixedly connected to the middle of the pull rod (303).
3. The filter press device for tungsten ammonia-free smelting according to claim 1, characterized in that, The left end of the compression roller (402) has a smaller shaft diameter than the right end.
4. The filter press device for tungsten ammonia-free smelting according to claim 3, characterized in that, The compression roller (402) is fixedly connected with a spiral plate.
5. The filter press device for tungsten ammonia-free smelting according to claim 1, characterized in that, The filter pressing cylinder (401) is provided below with a filter screen (405), and the rack (10) on the left side of the filter pressing cylinder (401) is fixedly connected with a third motor (406) for driving the compression roller (402) to rotate.
6. The filter press device for tungsten ammonia-free smelting according to claim 1, characterized in that, The lower end of the reaction tank (20) is fixedly connected with a first motor (204), the output shaft of the first motor (204) is fixedly connected with a gear, and the lower end of the reaction tank (20) is further fixedly connected with two groups of guide blocks (203) on the front and rear sides, a shutter (202) is slidably connected between the two groups of guide blocks (203), and the shutter (202) is provided with a rack, which is engaged with the gear of the output shaft of the first motor (204).
7. The filter press device for tungsten ammonia-free smelting according to claim 5, characterized in that, The filter screen (405) is provided below with a first barrel (50) for receiving liquid, and the discharge port (404) is provided below with a second barrel (60) for receiving solid.