A diaphragm filter for producing praseodymium neodymium fluoride

Abstract

The utility model discloses a diaphragm filter press for praseodymium neodymium fluoride production belongs to diaphragm filter press manufacturing technical field, it includes collection frame and the front side plate and rear side plate of fixed on collection frame, the front side plate and rear side plate between fixed connection have the sliding frame, a plurality of compression tight boards are connected with on the sliding frame, a plurality of sliding tubes are connected with on the front side plate, a plurality of fixed tubes are connected with on the rear side plate, the inflation pipe is connected with fixedly on the sliding frame, the inflation pipe one side fixed connection has the air -blower, the compression tight board fixed connection has the connecting pipe on, the connecting pipe and inflation pipe fixed connection, fixed hole is opened on the compression tight board. The utility model discloses through the setting of telescopic ware, cooperation fixed hole on compression tight board, after completing pressure filtration, telescopic ware is under the action of reciprocating screw along the sliding frame reciprocating movement, constantly drive each compression tight board separate each other, need not manual operation, the whole process is fully automatic, save time and labour.

Description

Technical Field

[0001] This utility model relates to the field of diaphragm filter press manufacturing technology, and in particular to a diaphragm filter press for the production of praseodymium-neodymium fluoride. Background Technology

[0002] Diaphragm filter presses for praseodymium-neodymium fluoride production are mainly used in the solid-liquid separation process of rare earth hydrometallurgy, especially after the precipitation reaction of praseodymium-neodymium fluoride, for efficient separation of rare earth fluoride solids and mother liquor. The core reason for choosing this equipment is that it can significantly reduce the moisture content of the filter cake and improve the recovery efficiency. First, a filter cake is formed by positive pressure filtration. Then, the filter cake is subjected to secondary high-pressure pressing by diaphragm gas or water filling. This process can forcefully squeeze out the water in the capillary structure of the filter cake, thereby obtaining a drier and denser praseodymium-neodymium fluoride filter cake. In existing products, when performing solid-liquid separation of praseodymium fluoride and neodymium fluoride, the movement of the clamping plates requires manual separation. Due to the large number of clamping plates, the separation operation process is complex, time-consuming, and labor-intensive. Furthermore, traditional devices only perform one pressure filtration process, and the filter cake after processing still contains some moisture, which cannot be further processed, making it difficult to obtain a drier praseodymium fluoride filter cake. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a diaphragm filter press for the production of praseodymium-neodymium fluoride.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A diaphragm filter press for praseodymium-neodymium fluoride production includes a collection frame and a front side plate and a rear side plate fixed to the collection frame. A slide is fixedly connected between the front side plate and the rear side plate. Multiple pressing plates are slidably connected to the slide. Multiple sliding tubes are slidably connected to the front side plate. Multiple fixing tubes are fixedly connected to the rear side plate. An air inlet pipe is fixedly connected to the slide. A blower is fixedly connected to one side of the air inlet pipe. A connecting pipe is fixedly connected to the pressing plate. The connecting pipe and the air inlet pipe are fixedly connected. A fixing hole is opened on the pressing plate. A sliding block is slidably connected to the slide. An expansion joint is fixedly connected to the sliding block.

[0005] Preferably, a motor is fixedly connected to one side of the collection frame, a reciprocating screw is rotatably connected to one side of the collection frame, the reciprocating screw is fixedly connected to the output end of the motor, a reciprocating ring is mechanically matched on the reciprocating screw, the reciprocating ring and the sliding block are fixedly connected by a connecting plate, a rotating shaft is rotatably connected to one side of the reciprocating ring, a gear is fixedly connected to one side of the rotating shaft, a rack is fixedly connected to one side of the collection frame, the rack and the gear mesh, a slide rail is provided on the collection frame, the rotating shaft and the slide rail are slidably connected, multiple stirring plates are fixedly connected to the rotating shaft, a filter plate is fixedly connected inside the collection frame, and a pusher plate is fixedly connected to the lower side of the reciprocating ring.

[0006] Preferably, the collection frame has a first discharge port on one side and a second discharge port on the other side.

[0007] Preferably, the clamping plate has multiple connection holes.

[0008] Preferably, an anti-slip pad is fixedly connected to the lower side of the collection frame.

[0009] Preferably, a partition is fixedly connected to one side of the blower.

[0010] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, through the setting of the telescopic device, in conjunction with the fixing holes on the pressing plate, after the filter pressing is completed, the telescopic device moves back and forth along the slide under the action of the reciprocating screw, continuously driving the pressing plates to separate from each other. No manual operation is required, and the whole process is fully automatic, saving time and effort. 2. Furthermore, this utility model uses a reciprocating screw and rack and pinion to drive a stirring plate to agitate the filter cake, thereby performing a secondary treatment on the praseodymium-neodymium fluoride filter cake. This allows the small amount of moisture remaining on the filter cake to evaporate, resulting in drier praseodymium-neodymium fluoride and improving product quality. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of a diaphragm filter press for the production of praseodymium-neodymium fluoride proposed in this utility model; Figure 2 This is a schematic diagram of the reciprocating screw, reciprocating ring, connecting plate, and sliding block in a diaphragm filter press for praseodymium-neodymium fluoride production according to the present invention. Figure 3 This is a schematic diagram of the blower, gear, rack, and telescopic device in a diaphragm filter press for praseodymium-neodymium fluoride production according to the present invention.

[0012] In the diagram: 1. Collection frame, 2. Front side plate, 3. Rear side plate, 4. Slide, 5. Pressing plate, 6. Sliding tube, 7. Fixing tube, 8. Inflation tube, 9. Blower, 10. Connecting tube, 11. Connecting hole, 12. Fixing hole, 13. Motor, 14. Reciprocating screw, 15. Reciprocating ring, 16. Connecting plate, 17. Sliding block, 18. Expansion joint, 19. Gear, 20. Rotating shaft, 21. Rack, 22. Push plate, 23. Slide rail, 24. Filter plate, 25. Stirring plate, 26. First discharge port, 27. Second discharge port. Detailed Implementation

[0013] Reference Figures 1-3 A diaphragm filter press for praseodymium-neodymium fluoride production includes a collection frame 1 and a front side plate 2 and a rear side plate 3 fixed to the collection frame 1. Anti-slip pads are fixedly connected to the lower side of the collection frame 1 to ensure stability during operation. A first discharge port 26 is opened on one side of the collection frame 1, and a second discharge port 27 is opened on the other side. A slide frame 4 is fixedly connected between the front side plate 2 and the rear side plate 3. Multiple pressure plates 5 are slidably connected to the slide frame 4. The core of the pressure plate 5 is an inflatable structure composed of an internally sealed airbag. Inflation generates thrust, and the outer elastic sealing ring deforms and tightly seals the structure under pressure, achieving mechanical sealing and fluid isolation. This is existing technology and will not be elaborated further. Multiple connection holes 11 are opened on the pressure plate 5. Multiple sliding tubes 6 are slidably connected to the front side plate 2, and multiple fixed tubes 6 are fixedly connected to the rear side plate 3. An air inlet pipe 8 is fixedly connected to the fixed pipe 7 and the slide 4. A blower 9 is fixedly connected to one side of the air inlet pipe 8. The blower 9 is mainly composed of an impeller, a casing and a drive device. The air is accelerated by the high-speed rotation of the impeller and then collected and guided by the casing to finally generate a high-pressure airflow output. This is existing technology and will not be described in detail. A partition is fixedly connected to one side of the blower 9 to prevent solid substances in the air from clogging the blower 9. A connecting pipe 10 is fixedly connected to the pressure plate 5. The connecting pipe 10 and the air inlet pipe 8 are fixedly connected. A fixing hole 12 is opened on the pressure plate 5. A sliding block 17 is slidably connected to the slide 4. A telescopic device 18 is fixedly connected to the sliding block 17. The telescopic device 18 locks the pressure plate 5 by inserting a movable positioning rod into the fixing hole 12 at different positions in a mechanical locking manner. This is existing technology and will not be described in detail. A motor 13 is fixedly connected to one side of the collection frame 1, and a reciprocating screw 14 is rotatably connected to the other side. The reciprocating screw 14 is fixedly connected to the output end of the motor 13. A reciprocating ring 15 is mechanically matched on the reciprocating screw 14. The reciprocating screw 14 is a special screw with an annular circulating groove on its surface. The reciprocating ring 15 is an annular component with a drive pin embedded inside. The reciprocating screw 14 and the reciprocating ring 15 are connected by the drive pin precisely embedded in the groove of the screw. When the reciprocating ring 15 is fixed and does not rotate, the rotation of the screw will force the drive pin to move along the groove trajectory, thereby directly converting the rotation of the screw into the precise and continuous axial linear reciprocating motion of the reciprocating ring 15. This is existing technology and will not be described in detail. The reciprocating ring 15 and the sliding block 17 are fixedly connected by a connecting plate 16. A rotating shaft is rotatably connected to one side of the reciprocating ring 15. 20. A gear 19 is fixedly connected to one side of the rotating shaft 20, and a rack 21 is fixedly connected to one side of the collection frame 1. The rack 21 and the gear 19 mesh. A slide rail 23 is provided on the collection frame 1, and the rotating shaft 20 is slidably connected to the slide rail 23. Multiple agitator plates 25 are fixedly connected to the rotating shaft 20. The agitator plates 25 agitate the praseodymium fluoride filter cake on the upper side of the collection frame 1, so that the praseodymium fluoride filter cake is in full contact with the air, allowing the fluoride to be fully absorbed. The water that was not completely filtered in the praseodymium-neodymium filter cake is fully evaporated, resulting in drier praseodymium-neodymium fluoride. A filter plate 24 is fixedly connected inside the collection frame 1. The drier praseodymium-neodymium fluoride will fall to the bottom of the collection frame 1 through the filter plate 24. A push plate 22 is fixedly connected to the lower side of the reciprocating ring 15. The push plate 22 can push the praseodymium-neodymium fluoride that has undergone secondary treatment to be discharged from the first discharge port 26 or the second discharge port 27.

[0014] In this invention, when praseodymium-neodymium fluoride needs to be pressure filtered, each pressing plate 5 is first fixed. The praseodymium-neodymium fluoride solid-liquid mixture enters the space between the pressing plates 5 through the sliding tube 6, and then enters the fixed tube 7 through the connecting hole 11 between the pressing plates 5. During this process, the blower 9 is started, and air is injected into the pressing plates 5 through the air inlet pipe 8 and the connecting pipe 10. During the air inlet process, the pressing plates 5 expand and pressure filter the praseodymium-neodymium fluoride solid-liquid mixture between the pressing plates 5, forcing the liquid into the connecting hole 11 between the pressing plates 5. The praseodymium-neodymium fluoride solid remains in the gap between the pressing plates 5 to form a praseodymium-neodymium fluoride filter cake. After the pressure filtration is completed, the motor 13 is started. The motor 13 drives the reciprocating screw 14 to rotate, and the reciprocating screw 14 drives the reciprocating ring 15 to move back and forth. The reciprocating ring 15 drives the sliding block 17 to move back and forth along the slide frame 4 through the connecting plate 16. The sliding block 17 drives the telescopic movement. The device 18 reciprocates, and during the reciprocating motion of the telescopic device 18, it continuously locks the pressing plate 5, causing the pressing plate 5 to separate from each other, so that the praseodymium-neodymium fluoride filter cake between the pressing plates 5 falls into the collection frame 1 on the lower side. The reciprocating ring 15 drives the gear 19 to move along the rack 21, thereby causing the gear 19 to rotate. The gear 19 drives the rotating shaft 20 to rotate, and the rotating shaft 20 drives the stirring plate 25 to rotate. The rotating stirring plate 25 stirs the praseodymium-neodymium fluoride filter cake, so that the praseodymium-neodymium fluoride filter cake comes into full contact with the air, promoting the evaporation of unfiltered water, and obtaining drier praseodymium-neodymium fluoride. The drier praseodymium-neodymium fluoride will fall to the bottom of the collection frame 1 through the filter plate 24. A push plate 22 is fixedly connected to the lower side of the reciprocating ring 15. The push plate 22 can push the praseodymium-neodymium fluoride that has undergone secondary treatment to be discharged from the first discharge port 26 or the second discharge port 27.

Claims

1. A diaphragm filter press for the production of praseodymium-neodymium fluoride, comprising a collection frame (1) and a front side plate (2) and a rear side plate (3) fixed on the collection frame (1), characterized in that, A slide (4) is fixedly connected between the front side plate (2) and the rear side plate (3). Multiple pressure plates (5) are slidably connected to the slide (4). Multiple sliding tubes (6) are slidably connected to the front side plate (2). Multiple fixing tubes (7) are fixedly connected to the rear side plate (3). An inflation tube (8) is fixedly connected to the slide (4). A blower (9) is fixedly connected to one side of the inflation tube (8). A connecting tube (10) is fixedly connected to the pressure plate (5). The connecting tube (10) and the inflation tube (8) are fixedly connected. A fixing hole (12) is opened on the pressure plate (5). A sliding block (17) is slidably connected to the slide (4). A telescopic device (18) is fixedly connected to the sliding block (17).

2. The diaphragm filter press for praseodymium-neodymium fluoride production according to claim 1, characterized in that, A motor (13) is fixedly connected to one side of the collection frame (1), and a reciprocating screw (14) is rotatably connected to one side of the collection frame (1). The reciprocating screw (14) is fixedly connected to the output end of the motor (13). A reciprocating ring (15) is mechanically matched on the reciprocating screw (14). The reciprocating ring (15) and the sliding block (17) are fixedly connected through a connecting plate (16). A rotating shaft (20) is rotatably connected to one side of the reciprocating ring (15). A gear (19) is fixedly connected to one side of the collection frame (1), and a rack (21) is fixedly connected to one side of the collection frame (1). The rack (21) and the gear (19) mesh with each other. A slide rail (23) is opened on the collection frame (1). The rotating shaft (20) and the slide rail (23) are slidably connected. Multiple stirring plates (25) are fixedly connected to the rotating shaft (20). A filter plate (24) is fixedly connected inside the collection frame (1). A pusher plate (22) is fixedly connected to the lower side of the reciprocating ring (15).

3. A diaphragm filter press for praseodymium-neodymium fluoride production according to claim 1, characterized in that, The collection box (1) has a first discharge port (26) on one side and a second discharge port (27) on the other side.

4. A diaphragm filter press for praseodymium-neodymium fluoride production according to claim 1, characterized in that, The clamping plate (5) has multiple connection holes (11).

5. A diaphragm filter press for praseodymium-neodymium fluoride production according to claim 1, characterized in that, The collection box (1) is fixedly connected to an anti-slip pad on its lower side.

6. A diaphragm filter press for praseodymium-neodymium fluoride production according to claim 1, characterized in that, A partition is fixedly connected to one side of the blower (9).

Images