Silicon dioxide filter cake crushing processing equipment

Abstract

The utility model discloses silicon dioxide filter cake crushing processing equipment which comprises two supporting plates and fixing plates fixedly installed at the top ends of the two supporting plates, and a crushing cylinder is fixedly installed between the two fixing plates. A filter cake which is not completely crushed is located between the filter screen and the crushing cylinder, crushing rollers in the crushing cylinder enable a gear ring to drive a rotating ring to rotate at the same time under the action of a transmission assembly, and in the rotating process, a plurality of material pushing plates annularly rotate with the crushing cylinder as the axis; a pushing plate pushes a silicon dioxide filter cake which is not crushed completely to the top end of the crushing cylinder, and under the action of gravity, the silicon dioxide filter cake falls into the crushing cylinder again through a returning groove, so that the silicon dioxide filter cake which is not crushed completely continues to be crushed, full crushing can be achieved only through one crushing part and a transmission assembly, and the crushing efficiency is improved. The filter cake which is not completely crushed is subjected to secondary crushing, and the condition that the filter cake is blocked and cannot be subjected to secondary crushing is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of silica filter cake processing, in particular to a silica filter cake crushing and processing device. Background Technique

[0002] Silica filter cake is an indispensable link in the production process of silica. Its basic concept originates from the precipitation method for preparing silica. In this process, sodium silicate solution reacts with acidic substances such as sulfuric acid. By adjusting the pH value of the reaction system, silica precipitates out. Subsequently, these precipitates are filtered and washed by a filter press to form a solid silica filter cake. This filter cake not only contains a high concentration of silica but also retains some physical and chemical properties of the raw materials and is an important raw material for subsequent processing. In production, silica filter cake has multiple functions. First, it is a key intermediate product connecting raw materials and finished products, providing a material basis for the subsequent preparation of high-purity silica products. Second, the morphology and properties of the filter cake directly affect the efficiency of subsequent processing steps and the product quality, such as the uniformity in the spray drying process and the particle distribution of the final product.

[0003] The silica filter cake needs to be crushed before further processing to improve its fluidity and dispersibility. However, the crushing process faces challenges. For example, the high viscosity and water content of the filter cake result in poor effects of traditional crushing methods, easy clogging and difficult cleaning. At the same time, uneven crushing will also affect the product performance and quality. To overcome these challenges, currently, two main solutions are adopted: one is to conduct preliminary crushing through a belt conveyor and a crusher, and then use a stirring device to refine it; the other is to use a screw feeder combined with specially designed fan-shaped blades and crushing rods to achieve continuous crushing and conveying of the filter cake, effectively avoiding the adhesion and wrapping of the filter cake, and improving the crushing efficiency and effect. In addition, the high viscosity and easy caking problems after the filter cake is crushed also need to be considered. Through appropriate dispersant treatment and reasonable drying process, the crushing efficiency and product quality can be improved to meet the needs of various industries for high-quality silica products.

[0004] Patent document CN213792129U discloses a crushing device for silica processing, belonging to the field of silica processing technical equipment. It includes a machine shell (1) and a crushing component (2). A feed inlet (11) is arranged on the top side of the machine shell (1), and a discharge hopper (12) is arranged at the bottom of the machine shell (1). The crushing component (2) includes a first crushing part (21) and a second crushing part (22). The first crushing part (21) is arranged inside the machine shell (1) near the feed inlet (11), and the second crushing part (22) is arranged below the first crushing part (21). This kind of crushing device for silica processing can perform double-stage crushing on quartz stone, ensure its crushing particle size, and can improve the purification content of silica.

[0005] In the prior art of the above-mentioned patent, in order to achieve the effect of fully pulverizing silica, two stirring components are provided in the above-mentioned device. This method undoubtedly increases the manufacturing cost, use cost and maintenance cost of the device. Moreover, the grate bar is arranged below the first crushing part, but there is a certain distance. Some of the incompletely pulverized filter cakes are small and just stuck between the grate bar and the first crushing part, and cannot be stirred again by the first crushing part, and accumulate above the grate bar. This will not only block the powder crushed by the first crushing part, but also reduce the discharge rate. Summary of the Invention

[0006] The purpose of the present invention is to provide a silica filter cake crushing and processing device to solve the above deficiencies in the prior art.

[0007] To achieve the above purpose, the present invention adopts the following technical scheme: A silica filter cake crushing and processing device includes two support plates and a fixing plate fixedly installed at the top ends of the two support plates. A crushing cylinder is fixedly installed between the two fixing plates. A crushing assembly is arranged inside the crushing cylinder. The crushing assembly includes a plurality of crushing rollers. Rotating rings and toothed rings are respectively rotatably installed on the side walls of the two fixing plates. A filter screen is fixedly connected between the rotating ring and the toothed ring. A plurality of connecting plates are fixedly installed on the inner walls of the rotating ring and the toothed ring. A pushing plate is arranged between the plurality of connecting plates arranged on the rotating ring and the plurality of connecting plates arranged on the inner wall of the toothed ring. An elastic rotating assembly is arranged between the pushing plate and the connecting plate. One ends of the plurality of pushing plates are in contact with the outer side wall of the crushing cylinder. Return material grooves and discharge grooves are respectively opened at the top end and the bottom end of the crushing cylinder. A transmission assembly is arranged between one of the crushing rollers and the toothed ring.

[0008] As a further description of the above technical scheme: The crushing assembly further includes a plurality of first gears. The plurality of first gears are fixedly installed at one ends of the plurality of crushing rollers and mesh with each other. A fixing frame is fixedly installed on the side wall of one of the fixing plates. A motor is fixedly installed inside the fixing frame. The output end of the motor is in transmission connection with one of the crushing rollers.

[0009] As a further description of the above technical scheme: A rotating rod is rotatably installed on the side wall of one of the support plates. Pulley wheels are fixedly installed at one ends of one of the crushing rollers far away from the first gears and on the rotating rod. A transmission belt is in transmission connection between the two pulley wheels. A second gear is fixedly installed at one end of the rotating rod. The second gear is arranged at the bottom end of the toothed ring and meshes with the toothed ring.

[0010] As a further description of the above technical scheme: A blocking strip is fixedly installed on the side wall of the fixing plate.

[0011] As a further description of the above technical solution: The elastic rotation assembly includes a rotating shaft, the rotating shaft is rotatably installed between two connecting plates, torsion springs are sleeved at both ends of the rotating shaft, one end of each torsion spring is fixedly connected to the connecting plate, and the other end of the torsion spring is fixedly connected to the rotating shaft.

[0012] As a further description of the above technical solution: A feeding slot is formed in the side wall of the crushing cylinder, a feeding hopper is communicated and installed on the side wall of the fixed plate, the feeding hopper is communicated with the feeding slot, a receiving trough is fixedly installed between the two support plates, and the receiving trough is arranged below the discharging trough.

[0013] The utility model provides a silica cake crushing and processing device. It has the following beneficial effects: The silica cake to be crushed in the utility model is put into the interior of the crushing cylinder through the feeding hopper for crushing. Part of the crushed powder flows out through the discharging trough, and part of the raw materials meeting the powder size pass through the filter screen and flow into the interior of the receiving trough. Then, the incompletely crushed cake is between the filter screen and the crushing cylinder. The crushing roller inside the crushing cylinder drives the toothed ring to drive the rotating ring to rotate simultaneously under the action of the transmission assembly. During the rotation process, a plurality of pushing plates rotate annularly around the crushing cylinder as the axis. The pushing plates push the incompletely crushed silica cake to the top of the crushing cylinder. Under the action of gravity, the silica cake falls into the interior of the crushing cylinder again through the return material trough, so that the incompletely crushed cake continues to be crushed, realizing sufficient crushing only through one crushing part and the transmission assembly, enabling the incompletely crushed cake to be crushed twice, and the cake will not get stuck and cannot be crushed twice.

[0014] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not intended to limit the present disclosure.

[0015] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and does not represent the full scope of the disclosed technology or a comprehensive disclosure of all features. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is an overall three-dimensional structure schematic diagram of a silica cake crushing and processing device proposed by the utility model;

[0017] Figure 2 is a three-dimensional exploded structure schematic diagram of the utility model;

[0018] Figure 3 is a three-dimensional exploded structure schematic diagram of another perspective of the utility model;

[0019] Figure 4 is a three-dimensional exploded structure schematic diagram between the fixed plates of the utility model;

[0020] Figure 5 is a schematic diagram of the partial sectional structure of the present utility model;

[0021] Figure 6 is a three-dimensional exploded structure diagram of the pushing plate and the elastic rotating assembly of the present utility model.

[0022] Legend description:

[0023] 1. Support plate; 2. Fixed plate; 3. Filter screen; 4. Crushing cylinder; 5. Feeding trough; 6. Discharge hopper; 7. Crushing roller; 8. First gear; 9. Return material trough; 10. Discharge trough; 11. Connecting plate; 12. Rotating shaft; 13. Pushing plate; 14. Tooth ring; 15. Rotating ring; 16. Second gear; 17. Fixed frame; 18. Motor; 19. Transmission belt; 20. Pulley; 21. Rotating rod; 22. Receiving trough; 23. Blocking bar; 24. Torsion spring. Specific implementation manners

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0025] Refer to Figures 1-6, a silica filter cake crushing processing equipment, comprising two support plates 1 and a fixed plate 2 fixedly installed on the top of the two support plates 1, a crushing cylinder 4 is fixedly installed between the two fixed plates 2, a crushing assembly is arranged inside the crushing cylinder 4, the crushing assembly comprises a plurality of crushing rollers 7, a rotating ring 15 and a gear ring 14 are rotatably installed on the side walls of the two fixed plates 2, a filter screen 3 is fixedly connected between the rotating ring 15 and the gear ring 14, a plurality of connecting plates 11 are fixedly installed on the inner wall of the rotating ring 15 and the gear ring 14, a push plate 13 is arranged between the plurality of connecting plates 11 arranged on the rotating ring 15 and the plurality of connecting plates 11 arranged on the inner wall of the gear ring 14, an elastic rotating assembly is arranged between the push plate 13 and the connecting plate 11, one end of the plurality of push plates 13 is in contact with the outer side wall of the crushing cylinder 4, a return trough 9 and a discharge trough 10 are respectively opened at the top and bottom ends of the crushing cylinder 4, a filter screen 3 is fixedly connected between the rotating ring 15 and the gear ring 14, a plurality of connecting plates 11 are fixedly installed on the inner wall of the rotating ring 15 and the gear ring 14, a push plate 13 ... There is a transmission component; the silica filter cake to be crushed is placed into the interior of the crushing cylinder 4 through the lower hopper 6 for crushing, and a part of the crushed powder flows out through the discharge trough 10, and a part of the raw materials that meet the powder size flows out through the filter screen 3 and enters the interior of the receiving trough 22, and then the filter cake that is not completely crushed is between the filter screen 3 and the crushing cylinder 4. The crushing roller 7 inside the crushing cylinder 4 drives the gear ring 14 to drive the rotating ring 15 to rotate simultaneously under the action of the transmission component. During the rotation, multiple push plates 13 rotate in a ring around the crushing cylinder 4 as the axis, and the push plate 13 pushes the silica filter cake that is not completely crushed to the top of the crushing cylinder 4. Under the action of gravity, the silica filter cake falls into the interior of the crushing cylinder 4 again through the return trough 9, so that the filter cake that is not completely crushed continues to be crushed, and it is achieved that sufficient crushing can be achieved only through a crushing part and a transmission component, so that the filter cake that is not completely crushed is crushed for the second time, and the filter cake will not get stuck and cannot be crushed for the second time.

[0026] As a preferred technical solution of this embodiment, the crushing assembly also includes a plurality of first gears 8, which are fixedly mounted on one end of a plurality of crushing rollers 7 and mesh with each other. A fixing frame 17 is fixedly mounted on the side wall of one of the fixed plates 2, and a motor 18 is fixedly mounted inside the fixing frame 17. The output end of the motor 18 is transmission-connected to one of the crushing rollers 7. The motor 18 drives one crushing roller 7 to rotate, and the plurality of crushing rollers 7 rotate simultaneously under the action of the first gear 8, thereby achieving the crushing of the filter cake.

[0027] As a preferred technical solution of this embodiment, a rotating rod 21 is rotatably installed on the side wall of one of the support plates 1. Fixedly installed on both the end of one of the crushing rollers 7 away from the first gear 8 and the rotating rod 21 are belt pulleys 20. A transmission belt 19 is drivingly connected between the two belt pulleys 20. Fixedly installed at one end of the rotating rod 21 is a second gear 16. The second gear 16 is arranged at the bottom end of the toothed ring 14 and meshes with the toothed ring 14. The rotation of the second gear 16 can be realized through the transmission belt 19, and further the rotation of the toothed ring 14 can be realized. And because the rotation speed of the crushing roller 7 is relatively fast, the rotation speed of the second gear 16 is also relatively fast. However, the second gear 16 is smaller than the toothed ring 14, which can realize the decelerated rotation of the toothed ring 14.

[0028] As a preferred technical solution of this embodiment, a blocking strip 23 is fixedly installed on the side wall of the fixing plate 2. Since the pushing plate 13 and the rotating shaft 12 are elastically rotatably connected to the two connecting plates 11, the function of the blocking strip 23 is that when the pushing plate 13 transports the incompletely crushed filter cake above the return slot 9 of the crushing cylinder 4, the pushing plate 13 can rotate to achieve sufficient feeding. And when the pushing plate 13 continues to rotate, it can cross over the blocking strip 23 to achieve resetting.

[0029] As a preferred technical solution of this embodiment, the elastic rotating assembly includes a rotating shaft 12. The rotating shaft 12 is rotatably installed between the two connecting plates 11. Both ends of the rotating shaft 12 are sleeved with torsion springs 24. One end of the torsion spring 24 is fixedly connected to the connecting plate 11, and the other end of the torsion spring 24 is fixedly connected to the rotating shaft 12. The function of the torsion spring 24 is to provide the rotational force for the pushing plate 13 when it is reset.

[0030] As a preferred technical solution of this embodiment, a feeding slot 5 is opened on the side wall of the crushing cylinder 4. A feeding hopper 6 is communicated and installed on the side wall of the fixing plate 2. The feeding hopper 6 is communicated with the feeding slot 5. A receiving slot 22 is fixedly installed between the two support plates 1. The receiving slot 22 is arranged below the discharge slot 10. The inside of the crushing cylinder 4 can be fed through the feeding hopper 6 and the feeding slot 5, and the receiving slot 22 can receive the completely crushed silicon dioxide powder.

[0031] The above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent replacements or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A silica cake crushing and processing device, comprising two support plates (1) and a fixing plate (2) fixedly installed at the top ends of the two support plates (1), characterized in that, A crushing cylinder (4) is fixedly installed between the two fixing plates (2). A crushing assembly is arranged inside the crushing cylinder (4). The crushing assembly includes a plurality of crushing rollers (7). Rotating rings (15) and toothed rings (14) are respectively rotatably installed on the side walls of the two fixing plates (2). A filter screen (3) is fixedly connected between the rotating ring (15) and the toothed ring (14). A plurality of connecting plates (11) are fixedly installed on the inner walls of the rotating ring (15) and the toothed ring (14). A pushing plate (13) is arranged between the plurality of connecting plates (11) arranged on the rotating ring (15) and the plurality of connecting plates (11) arranged on the inner wall of the toothed ring (14). An elastic rotating assembly is arranged between the pushing plate (13) and the connecting plate (11). One ends of the plurality of pushing plates (13) are in contact with the outer side wall of the crushing cylinder (4). Return material grooves (9) and discharge grooves (10) are respectively formed at the top end and the bottom end of the crushing cylinder (4). A transmission assembly is arranged between one of the crushing rollers (7) and the toothed ring (14).

2. The silica cake crushing and processing equipment according to claim 1, characterized in that, The crushing assembly further includes a plurality of first gears (8). The plurality of first gears (8) are fixedly installed at one ends of the plurality of crushing rollers (7) and are meshed with each other. A fixing frame (17) is fixedly installed on the side wall of one of the fixing plates (2). A motor (18) is fixedly installed inside the fixing frame (17). The output end of the motor (18) is in transmission connection with one of the crushing rollers (7).

3. The silica cake crushing and processing equipment according to claim 1, characterized in that, A rotating rod (21) is rotatably installed on the side wall of one of the support plates (1). Pulley wheels (20) are fixedly installed at one ends of one of the crushing rollers (7) far away from the first gears (8) and on the rotating rod (21). A transmission belt (19) is in transmission connection between the two pulley wheels (20). A second gear (16) is fixedly installed at one end of the rotating rod (21). The second gear (16) is arranged at the bottom end of the toothed ring (14) and is meshed with the toothed ring (14).

4. A silica cake crushing and processing device according to claim 1, characterized in that, A blocking strip (23) is fixedly installed on the side wall of the fixing plate (2).

5. A silica cake crushing and processing device according to claim 1, characterized in that, The elastic rotating assembly includes a rotating shaft (12). The rotating shaft (12) is rotatably installed between the two connecting plates (11). Torsion springs (24) are sleeved at both ends of the rotating shaft (12). One end of the torsion spring (24) is fixedly connected with the connecting plate (11), and the other end of the torsion spring (24) is fixedly connected with the rotating shaft (12).

6. A silica cake crushing and processing device according to claim 1, characterized in that, A feeding slot (5) is formed in the side wall of the crushing cylinder (4). A feeding hopper (6) is communicated and installed on the side wall of the fixing plate (2). The feeding hopper (6) is communicated with the feeding slot (5). A receiving slot (22) is fixedly installed between the two support plates (1). The receiving slot (22) is arranged below the discharge slot (10).

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