Spiral stirring and mixing device for high-viscosity slurry of quartz ceramic crucible

Abstract

The utility model provides a spiral stirring and mixing device for high-viscosity slurry of a quartz ceramic crucible. The spiral stirring and mixing device comprises a bracket, a tank body arranged in the bracket, a stirring mechanism arranged in the tank body, and a driving mechanism arranged at the top of the bracket and used for driving the stirring mechanism to move; the stirring mechanism comprises a rotating shaft which is arranged in the tank body and is connected with a driving shaft of the driving mechanism, a plurality of connecting plates are arranged on the side wall of the rotating shaft, and anticlockwise spiral blades which are wound on the outer side of the rotating shaft and are arranged in the tank body are arranged on the connecting plates; the material mixing tank has the advantages that the structure is reasonable, the axial movement in the material mixing process is increased, the material mixing uniformity is improved, the structure is simple, the maintenance is convenient and fast, and the temperature is convenient and fast to control.

Description

Technical Field

[0001] The utility model relates to a mixing device, in particular to a spiral stirring mixing device for high-viscosity slurry of a quartz ceramic crucible. Background Art

[0002] Thin-walled large-size square quartz ceramic crucibles for crystalline silicon smelting. In recent years, as environmentally friendly energy has been continuously valued and developed, solar energy as a green energy has been widely valued by countries around the world and has been widely developed and utilized. This has led to a sharp increase in the use of polysilicon for solar energy conversion, thereby promoting the rapid development of polysilicon production. The corresponding large-size thin-walled square fused quartz ceramic crucibles are also increasing sharply. The mainstream production process of quartz ceramic crucibles is now the gel injection molding process. The use of high-purity quartz particles of different particle sizes to prepare low-moisture, high-density ceramic slurry through mixing is the basis of the process. The slurry is increased from the viscosity before mixing (<800cp) through adding materials to the viscosity after mixing (>6000cp). In this process, the temperature of the mixing section also needs to be reasonably controlled to ≤30℃, and good mixing can improve the quality and pass rate of the product, so a mixing device is needed.

[0003] In the prior art, the existing mixing devices, such as the utility model quartz crucible high viscosity ceramic slurry vertical stirring and mixing device with publication number CN213824327U, have high radial stirring intensity, but there are problems such as uneven stirring of the slurry in the axial structure of the slurry during the mixing process of the device, and poor product consistency. The utility model high viscosity ceramic slurry double-helix mixer with publication number CN207373436U has a relatively complex structure, a high failure rate during the use of the double helix, and is difficult to maintain. At the same time, the temperature of the slurry cannot meet the process requirements. Now there is an urgent need for a spiral stirring and mixing device for high viscosity slurry in a quartz ceramic crucible to solve the above-mentioned problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a spiral stirring and mixing device for high-viscosity slurry in a quartz ceramic crucible, so as to solve the problems raised in the above-mentioned background technology. The utility model has a reasonable structure, increases the axial movement of the mixing process to improve the mixing uniformity, has a simple structure, is easy to maintain, and has convenient temperature control.

[0005] In order to achieve the above object, the utility model is realized through the following technical scheme: a spiral stirring and mixing device for high viscosity slurry of quartz ceramic crucible, comprising:

[0006] A support, wherein a tank body is arranged inside the support, a stirring mechanism is arranged inside the tank body, and a driving mechanism for driving the stirring mechanism to move is arranged on the top of the support;

[0007] The stirring mechanism includes a rotating shaft arranged inside the tank body and connected to the driving shaft of the driving mechanism, a plurality of connecting plates are arranged on the side wall of the rotating shaft, and a plurality of connecting plates are provided with counterclockwise spiral blades wound around the outside of the rotating shaft and arranged inside the tank body;

[0008] The inner wall of the tank is provided with a clockwise spiral blade which is arranged outside the counterclockwise spiral blade.

[0009] Furthermore, the driving mechanism includes a reducer and a transmission motor arranged on the top of the bracket, one of the driving shafts of the reducer and the output shaft of the transmission motor are both provided with gears, a belt is provided between the gears, and the other driving shaft of the reducer is connected to the rotating shaft.

[0010] Furthermore, a first coupling is arranged on the driving shaft of the reducer on the side close to the rotating shaft, a second coupling is arranged on the top of the rotating shaft, and bolts are arranged between the first coupling and the second coupling.

[0011] Furthermore, a pair of turning mechanisms connected to the side walls of the tank body are symmetrically arranged on the side walls of the bracket, and the turning mechanisms are rotating motors.

[0012] Furthermore, a hollow interlayer is opened on the side wall of the tank body, and a water inlet pipe and a water outlet pipe connected to the hollow interlayer are arranged on the side wall of the tank body. A chiller is arranged on one side of the tank body, and a guide pipe is arranged between the chiller and the water inlet pipe and the water outlet pipe respectively.

[0013] Furthermore, a cover plate is provided on the top of the tank body, a feeding port is provided on the top of the cover plate, the rotating shaft passes through the cover plate, a discharge pipe is provided at the bottom of the tank body, and an electric valve is provided on the discharge pipe.

[0014] Furthermore, the counterclockwise spiral blades and the side walls of the connecting plate are both wrapped with polyurethane plastic.

[0015] According to the utility model, a spiral stirring and mixing device for high-viscosity slurry in a quartz ceramic crucible is used. By making the driving shaft of the driving mechanism drive the rotating shaft to rotate, the rotating shaft drives the connecting plate to rotate, and the connecting plate drives the counterclockwise spiral blade to rotate clockwise. Under the action of the clockwise spiral blade, the slurry in the tank can be rolled up and down during stirring, and the axial movement of the mixing process is increased, so that the stirring is more uniform and sufficient, thereby improving the uniformity of stirring. The counterclockwise spiral blade and the clockwise spiral blade can be used to improve the uniformity of stirring, and the structure is simple.

[0016] By using the first coupling and the second coupling, the rotating shaft is conveniently connected to the driving shaft of the reducer, thereby facilitating the connection and fixing operation, and conveniently disassembling and maintenance operations;

[0017] The hollow interlayer is supplied with liquid and discharged through the chiller to circulate cooling water, thereby cooling the slurry inside the tank body, making it easier to control the temperature of the slurry to ensure that the temperature of the slurry meets the process requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0019] Figure 1 It is a three-dimensional diagram of a spiral stirring and mixing device for high-viscosity slurry in a quartz ceramic crucible according to an embodiment of the utility model;

[0020] Figure 2 It is a three-dimensional diagram of the connection between the stirring mechanism and the clockwise spiral blade in a spiral stirring and mixing device for high-viscosity slurry in a quartz ceramic crucible according to one embodiment of the utility model;

[0021] Figure 3 It is a front view of a spiral stirring and mixing device for high-viscosity slurry in a quartz ceramic crucible according to an embodiment of the utility model;

[0022] Figure 4 It is a right side cross-sectional view of a spiral stirring and mixing device for high-viscosity slurry in a quartz ceramic crucible according to one embodiment of the utility model;

[0023] Figure 5 According to an embodiment of the present utility model Figure 4 A magnified view of middle;

[0024] Figure 6 It is a front view of a stirring mechanism in a spiral stirring and mixing device for high-viscosity slurry in a quartz ceramic crucible according to an embodiment of the utility model;

[0025] Figure 7 It is a three-dimensional diagram of a stirring mechanism in a spiral stirring and mixing device for high-viscosity slurry in a quartz ceramic crucible according to an embodiment of the utility model;

[0026] Figure 8 A top view of a stirring mechanism in a spiral stirring and mixing device for high-viscosity slurry in a quartz ceramic crucible according to an embodiment of the utility model;

[0027] Fig. 9 It is a front view of the connection between the tank body and the chiller in a spiral stirring and mixing device for high-viscosity slurry in a quartz ceramic crucible according to one embodiment of the utility model;

[0028] In the figure: 1. bracket; 2. driving mechanism; 21. reducer; 211. first coupling; 22. belt; 23. gear; 24. transmission motor; 3. tank body; 31. water inlet pipe; 32. water outlet pipe; 33. hollow interlayer; 4. flipping mechanism; 5. electric valve; 6. discharge pipe; 7. stirring mechanism; 71. rotating shaft; 711. second coupling; 7111. bolt; 72. counterclockwise spiral blade; 73. connecting plate; 8. clockwise spiral blade; 9. guide pipe; 10. chiller. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0030] like Figure 1 As shown, the utility model provides a technical solution: a spiral stirring and mixing device for high-viscosity slurry in a quartz ceramic crucible, comprising:

[0031] A support 1, a tank body 3 is arranged inside the support 1, a stirring mechanism 7 is arranged inside the tank body 3, and a driving mechanism 2 for driving the stirring mechanism 7 to move is arranged on the top of the support 1;

[0032] Reference Figure 6 , Figure 7 and Figure 8 The stirring mechanism 7 includes a rotating shaft 71 disposed inside the tank body 3 and connected to the driving shaft of the driving mechanism 2, a plurality of connecting plates 73 are disposed on the side wall of the rotating shaft 71, and a plurality of connecting plates 73 are disposed on the plurality of connecting plates 73, and counterclockwise spiral blades 72 are wound around the outside of the rotating shaft 71 and disposed inside the tank body 3;

[0033] The inner wall of the tank body 3 is provided with a clockwise spiral blade 8 placed on the outside of the counterclockwise spiral blade 72. This design enables the driving shaft of the driving mechanism 2 to drive the rotating shaft 71 to rotate, and the rotation of the rotating shaft 71 drives the connecting plate 73 to rotate. The rotation of the connecting plate 73 drives the counterclockwise spiral blade 72 to rotate clockwise. Under the action of the clockwise spiral blade 8, the up and down tumbling of the slurry in the tank body 3 during stirring can be completed, and the axial movement of the mixing process can be increased, making the stirring more uniform and sufficient, thereby improving the uniformity of stirring. The use of the counterclockwise spiral blade 72 and the clockwise spiral blade 8 can improve the uniformity of stirring, and the structure is simple.

[0034] Reference Figure 2 and Figure 3The driving mechanism 2 includes a reducer 21 and a transmission motor 24 arranged on the top of the bracket 1. Gears 23 are arranged on one of the driving shafts of the reducer 21 and the output shaft of the transmission motor 24. A belt 22 is arranged between the gears 23. The other driving shaft of the reducer 21 is connected to the rotating shaft 71. This design drives the gear 23 to rotate by making the transmission motor 24 work. The rotation of the gear 23 drives the driving shaft of the reducer 21 on the gear 23 to rotate under the action of the belt 22, thereby driving the other driving shaft of the reducer 21 to rotate, thereby driving the rotating shaft 71 to rotate. The rotation of the rotating shaft 71 drives the counterclockwise spiral blade 72 to rotate to complete the stirring of the slurry, thereby protecting the counterclockwise spiral blade 72 from slow to fast clockwise operation when the stirring starts, and ensuring the normal use of the counterclockwise spiral blade 72.

[0035] Reference Figure 4 A first coupling 211 is provided on the driving shaft of the reducer 21 on the side close to the rotating shaft 71, a second coupling 711 is provided on the top of the rotating shaft 71, and a bolt 7111 is provided between the first coupling 211 and the second coupling 711. This design facilitates the connection of the rotating shaft 71 to the driving shaft of the reducer 21 by using the first coupling 211 and the second coupling 711, thereby facilitating the connection and fixing operation, and is also convenient for disassembly and maintenance operations.

[0036] Reference Figure 1 and Figure 3 A pair of flipping mechanisms 4 connected to the side walls of the tank body 3 are symmetrically arranged on the side walls of the bracket 1. The flipping mechanism 4 is a rotary motor. This design facilitates the rotation of the tank body 3, so that when the clockwise spiral blade 8 is damaged, it is convenient for cleaning the interior and manual repair operations.

[0037] Reference Figure 5 and Fig. 9 A hollow interlayer 33 is provided on the side wall of the tank body 3, and an inlet pipe 31 and an outlet pipe 32 connected to the hollow interlayer 33 are provided on the side wall of the tank body 3. A chiller 10 is provided on one side of the tank body 3, and a guide pipe 9 is provided between the chiller 10 and the inlet pipe 31 and the outlet pipe 32 respectively. This design facilitates the use of the hollow interlayer 33 provided inside the tank body 3, and completes the cooling water circulation connection with the chiller 10 through the inlet pipe 31, the outlet pipe 32 and the guide pipe 9, so that the chiller 10 is convenient for supplying and discharging liquid to the hollow interlayer 33, thereby cooling the slurry inside the tank body 3, and facilitating the control of the temperature of the slurry to ensure that the temperature of the slurry meets the process requirements.

[0038] Reference Figure 1 and Figure 4A cover plate is provided on the top of the tank body 3, a feeding port is provided on the top of the cover plate, a rotating shaft 71 passes through the cover plate, a discharge pipe 6 is provided at the bottom of the tank body 3, and an electric valve 5 is provided on the discharge pipe 6, which improves the rationality of the design, and the side walls of the counterclockwise spiral blade 72 and the connecting plate 73 are wrapped with polyurethane plastic. This design facilitates the protection of the counterclockwise spiral blade 72 and the connecting plate 73 and improves the service life.

[0039] Reference Figure 1-Figure 9 As an embodiment of the utility model: when it is necessary to stir the high-viscosity slurry in the quartz ceramic crucible, the slurry is delivered to the inside of the tank body 3 through the feeding port, and then the transmission motor 24 is operated to drive the gear 23 to rotate. The rotation of the gear 23 drives the drive shaft of the reducer 21 on the gear 23 to rotate under the action of the belt 22, thereby driving another drive shaft of the reducer 21 to rotate, thereby driving the rotating shaft 71 to rotate, and the rotation of the rotating shaft 71 drives the connecting plate 73 to rotate. The rotation of the connecting plate 73 drives the counterclockwise spiral blade 72 to rotate clockwise. Under the action of the clockwise spiral blade 8, the up and down tumbling of the slurry in the tank body 3 during stirring can be completed, and the axial movement of the mixing process can be increased, so that the stirring is more uniform and sufficient, thereby improving the uniformity of stirring. The use of the counterclockwise spiral blade 72 and the clockwise spiral blade 8 can improve the uniformity of stirring, and the structure is simple.

[0040] When the slurry needs to be cooled, a chiller 10 is used to supply and discharge liquid to the hollow interlayer 33 of the tank body 3 through the guide pipe 9, thereby performing a cooling water circulation operation, thereby cooling the slurry inside the tank body 3, making it easier to control the temperature of the slurry to ensure that the temperature of the slurry meets the process requirements.

[0041] When the clockwise spiral blade 8 is damaged, the bolt 7111 is removed to separate the first coupling 211 from the second coupling 711, and then the flipping mechanism 4 is operated to drive the tank body 3 to flip to a suitable position, thereby facilitating the cleaning and manual repair operations inside the tank body 3, facilitating maintenance operations, and improving the practicality of the utility model.

[0042] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0043] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A spiral stirring and mixing device for high viscosity slurry in a quartz ceramic crucible, comprising: A support (1), wherein a tank body (3) is arranged inside the support (1), a stirring mechanism (7) is arranged inside the tank body (3), and a driving mechanism (2) for driving the stirring mechanism (7) to move is arranged on the top of the support (1); It is characterized in that The stirring mechanism (7) comprises a rotating shaft (71) arranged inside the tank body (3) and connected to the driving shaft of the driving mechanism (2); a plurality of connecting plates (73) are arranged on the side wall of the rotating shaft (71); and counterclockwise spiral blades (72) are arranged on the connecting plates (73) and are wound around the outside of the rotating shaft (71) and arranged inside the tank body (3); The inner wall of the tank body (3) is provided with a clockwise spiral blade (8) disposed outside the counterclockwise spiral blade (72).

2. The spiral stirring and mixing device for high viscosity slurry of a quartz ceramic crucible according to claim 1, characterized in that: The driving mechanism (2) comprises a reducer (21) and a transmission motor (24) arranged on the top of the bracket (1); a gear (23) is arranged on one of the driving shafts of the reducer (21) and the output shaft of the transmission motor (24); a belt (22) is arranged between the gears (23); and the other driving shaft of the reducer (21) is connected to the rotating shaft (71).

3. The spiral stirring and mixing device for high viscosity slurry of a quartz ceramic crucible according to claim 2, characterized in that: A first coupling (211) is arranged on the driving shaft of the reducer (21) on the side close to the rotating shaft (71), a second coupling (711) is arranged on the top of the rotating shaft (71), and a bolt (7111) is arranged between the first coupling (211) and the second coupling (711).

4. The spiral stirring and mixing device for high viscosity slurry of a quartz ceramic crucible according to claim 1, characterized in that: A pair of turning mechanisms (4) connected to the side walls of the tank body (3) are symmetrically arranged on the side walls of the bracket (1), and the turning mechanisms (4) are rotating motors.

5. The spiral stirring and mixing device for high viscosity slurry of quartz ceramic crucible according to claim 1, characterized in that: The side wall of the tank body (3) is provided with a hollow interlayer (33), and the side wall of the tank body (3) is provided with a water inlet pipe (31) and a water outlet pipe (32) connected to the hollow interlayer (33). A chiller (10) is provided on one side of the tank body (3), and a flow guide pipe (9) is provided between the chiller (10) and the water inlet pipe (31) and the water outlet pipe (32), respectively.

6. The spiral stirring and mixing device for high viscosity slurry of quartz ceramic crucible according to claim 1, characterized in that: A cover plate is arranged on the top of the tank body (3), a feeding port is arranged on the top of the cover plate, the rotating shaft (71) passes through the cover plate, a discharge pipe (6) is arranged on the bottom of the tank body (3), and an electric valve (5) is arranged on the discharge pipe (6).

7. The spiral stirring and mixing device for high viscosity slurry of quartz ceramic crucible according to claim 1, characterized in that: The counterclockwise spiral blade (72) and the side wall of the connecting plate (73) are both wrapped with polyurethane plastic.

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