CN202200410U - A new type of silicon wafer cutting slurry stirring device - Google Patents

Abstract

The utility model discloses a novel silicon wafer cutting slurry stirring device, which is used for stirring solar silicon wafer multi-line cutting slurry, the stirring device comprises a stirring cylinder and an anchor type stirrer which is arranged in the stirring cylinder and mainly comprises a first stirring rod, a stirring shaft and a second stirring rod, wherein the first stirring rod and the second stirring rod are arranged at the two opposite ends of the stirring shaft in an angle staggered manner; the stirring device also comprises a screw stirrer arranged in the stirring cylinder, and the screw stirrer is arranged on the anchor stirrer in a relevant way. By adopting the novel silicon wafer cutting slurry stirring device provided by the embodiment of the utility model, the dispersion efficiency of powder in slurry in organic matters can be improved, the occurrence of agglomeration phenomenon is reduced, the stirring efficiency is further improved, and the manufacturing process is shortened; the stirring device has simple structure and low cost.

Description

A new type of silicon wafer cutting slurry stirring device

technical field

The utility model relates to the field of solar energy, in particular to a novel silicon chip cutting slurry stirring device used for stirring the multi-wire cutting slurry of solar silicon chips. the

Background technique

The existing multi-wire cutting fluid for solar silicon wafers is a production process in which polyethylene glycol is used to suspend silicon carbide powder, and a stirrer is used to stir for a long time to fully disperse the solid phase of the cutting fluid in the liquid phase. As shown in Figure 1, it is a structural schematic diagram of a solar silicon chip cutting slurry stirring device in the prior art. The rotation of 83 drives the rotation of the stirring rods 81 and 82 to stir the materials so as to achieve the purpose of fully dispersing the solid phase of the cutting liquid in the liquid phase. the

Due to the unreasonable structural design of the above-mentioned solar silicon wafer cutting slurry stirring device, it has the following defects: when the above-mentioned agitator is stirring materials, especially high-viscosity liquids, there will be a large stagnation area in the liquid layer and material agglomeration A variety of problems, and then it takes a long time to stir to achieve the expected mixing effect, the process takes a long time, and the stirring efficiency is not high. the

Utility model content

The technical problem to be solved by the embodiment of the utility model is to provide a new type of silicon chip cutting slurry stirring device, which can improve the dispersion efficiency of the powder in the slurry in the organic matter, reduce the occurrence of agglomeration, and further improve the stirring efficiency , shorten the manufacturing process; the stirring device has simple structure and low cost. the

In order to solve the above technical problems, the embodiment of the utility model provides a new type of silicon wafer cutting slurry stirring device, which is used for stirring the multi-wire cutting slurry of solar silicon wafers. The anchor stirrer in the tank is mainly composed of a first stirring rod, a stirring shaft and a second stirring rod, and the first stirring rod and the second stirring rod are arranged at an angle opposite to the stirring shaft both ends;

The stirring device also includes a screw agitator placed in the mixing tank, and the screw agitator is associated with the anchor agitator. the

Preferably, the screw agitator includes a mandrel and an impeller surrounding the mandrel, and the impeller is helical. the

Preferably, the mandrel and the impeller are integrally formed. the

Preferably, the screw agitator and the anchor agitator are driven to rotate by the same driving member. the

Preferably, the mandrel is coated on the stirring shaft of the anchor stirrer, and the operation of the stirring shaft driven by the driving member can synchronously drive the mandrel to rotate. the

Preferably, the bottom surface of the mixing tank is set as a smooth and excessive curved surface;

The second stirring rod is a curved rod-shaped structure, and the curvature of the second stirring rod is set to be the same as the curved surface of the bottom surface. the

Preferably, the first stirring rod, the stirring shaft and the second stirring rod are respectively arranged vertically. the

Preferably, the impeller is a threaded element with multiple leads or multiple staggered angles. the

Implementing the novel silicon chip cutting slurry stirring device according to the embodiment of the present invention has the following beneficial effects. Since the stirring device includes a screw stirrer placed in the stirring tank, the interlayer flow of the particle when the viscous fluid moves at a low speed is increased, thereby improving The dispersion efficiency of the powder in the slurry in the organic matter reduces the occurrence of agglomeration, further improves the stirring efficiency and shortens the manufacturing process; the stirring device has a simple structure and low cost. the

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the present utility model. For those skilled in the art, obtaining other drawings based on these drawings still belongs to the scope of the present utility model without any creative effort. the

Fig. 1 is the structural representation of solar wafer cutting slurry stirring device in the prior art;

Fig. 2 is the side view structural representation of an embodiment of the novel silicon chip cutting slurry stirring device of the present utility model;

Fig. 3 is a top view structural diagram of an embodiment of the new silicon wafer cutting slurry stirring device of the present invention. the

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings. the

The utility model discloses a novel silicon chip cutting slurry stirring device, which is used for stirring solar silicon chip multi-wire cutting slurry. An anchor stirrer 1 composed of a stirring rod 11, a stirring shaft 12 and a second stirring rod 13, the first stirring rod 11 and the second stirring rod 13 are arranged in an angled staggered manner opposite to the stirring shaft 12 The stirring device also includes a screw stirrer 2 placed in the mixing tank 9, and the screw stirrer 2 is set on the anchor stirrer 1 in association. the

Preferably, the screw agitator 2 and the anchor agitator 1 are driven to rotate by the same driving member. the

Referring to Fig. 2 and Fig. 3, the mixing tank 9 is a bowl-shaped hollow cylinder structure with an open end, in which a stirrer is installed in the hollow cavity and the materials placed therein are stirred by driving the stirrer. In this embodiment, the multi-wire cutting fluid for solar silicon wafers is accommodated in the mixing tank 9, and the silicon carbide powder suspended by polyethylene glycol substances used in the material preparation process needs to be stirred by an agitator, and the cutting can be achieved through the agitation of the agitator. The purpose of fully dispersing the liquid-solid phase in the liquid phase. The agitator used to stir the material can be suspended in the chamber of the mixing tank 9 by a conventional fixing method, and it can be placed on the top, middle or bottom of the mixing tank 9 according to the stirring effect of actual needs. It can be understood that the installation and fixing method and the installation and fixing position of the agitator cannot be interpreted as limiting the protection scope of the present utility model. the

The anchor stirrer 1 is mainly composed of a first stirring rod 11, a stirring shaft 12 and a second stirring rod 13. In this embodiment, the anchor stirrer 1 is placed in the hollow cavity of the mixing tank 9 as a whole, and the first stirring rod 11 and the second stirring rods 13 are arranged at opposite ends of the stirring shaft 12 in a staggered manner at an angle to each other. Wherein, the first stirring rod 11 is rod-shaped, and is located near the open end of the stirring cylinder 9; The central position of the mixing tank 9; the second stirring rod 13 is located at the bottom of the mixing tank 9, which is a bent rod-shaped structure with a certain radian, and the direction of the rod body is roughly the same as that of the bottom surface of the mixing tank 9. The bottom surface 92 of the mixing tank 9 in this embodiment is a smooth and excessive curved surface, and the curvature of the second stirring rod 13 is set to be the same as that of the curved surface radian of the bottom surface 92. When the second stirring rod 13 is rotated under force, its rod body rotates The formed curved surface is just parallel to the bottom surface 92 of the mixing tank 9 . During specific implementation, the agitating shaft 12 of the agitator is driven by the driving member to rotate, and the rotation of the agitating shaft 12 respectively drives the first agitating rod 11 and the second agitating rod 13 to rotate to agitate the materials in the agitating tank 9 . It can be understood that the shape and the fixed position of the first stirring rod 11 and the second stirring rod 13 can not be interpreted as the limitation of the scope of protection required by the utility model, and it can be connected and arranged on the stirring rod according to the needs of actual stirring Any position of the shaft 12, the second stirring rod 13 can also be provided with any degree of curvature, as long as the rotation of the stirring shaft 12 drives the first stirring rod 11 and the second stirring rod 13 to rotate respectively and then to the stirring cylinder 9 The material can be stirred. the

Preferably, the first stirring rod 11 , the stirring shaft 12 and the second stirring rod 13 are respectively arranged vertically. the

The screw agitator 2 is also placed in the mixing tank 9 , which specifically includes a mandrel 21 and an impeller 22 surrounding the mandrel 21 , and the impeller 22 is helical. Preferably, the core shaft 21 and the impeller 22 are integrally formed. The associated setting of the screw agitator 2 on the anchor agitator 1 means that the mandrel 21 of the screw agitator 2 is covered and arranged on the agitation shaft 12 of the anchor agitator 1, when the driving member drives the agitator When the stirring shaft 12 is in operation, the stirring shaft 12 can synchronously drive the mandrel 21 to rotate, and further rotate the impeller 22 to synchronously stir the materials in the mixing tank 9 . the

It can be seen that the screw agitator 2 and the anchor agitator 1 can be driven to rotate by the same driving member, and when the agitating shaft 12 is driven by the driving member to run, the agitating shaft 12 can synchronously drive the anchor agitator 1 and the screw agitator 2 to perform The material is stirred. the

It can be understood that the impeller 22 is a screw element with various leads and various staggered angles. Therefore, the above-mentioned shape of the impeller and its arrangement on the mandrel 21 cannot be interpreted as limiting the protection scope of the present invention. the

When a new type of silicon chip cutting slurry stirring device of the utility model is implemented in practice, the multi-wire cutting slurry of solar silicon chips is accommodated in the mixing tank 9, and the anchor mixer 1 and the screw rod in the mixing tank 9 are synchronously driven by the driving member. blender2. Specifically, the driving member drives the stirring shaft 12 of the anchor stirrer 1 to run, and since the first stirring rod 11 and the second stirring rod 13 are arranged at opposite ends of the stirring shaft 12 at opposite angles, the stirring The rotation of the shaft 12 can respectively drive the first stirring rod 11 and the second stirring rod 13 to rotate to stir the materials in the mixing tank 9; On the agitating shaft 12 of the type agitator 1, when the driving member drives the agitating shaft 12 of the agitator to run, the agitating shaft 12 can synchronously drive the mandrel 21 to rotate, and further make the impeller 22 rotate synchronously to agitate the material in the agitating tank 9. The screw agitator 2 is provided to increase the interlayer flow of the particles when the viscous fluid moves at a low speed, thereby improving the dispersion efficiency of the powder in the slurry in the organic matter and reducing the occurrence of agglomeration. the

In other embodiments of a novel silicon chip cutting slurry stirring device of the present utility model, the anchor stirrer 1 and the screw stirrer 2 can also be driven to rotate by different driving components, which does not affect the implementation of the scheme; at the same time, the stirring The device is not limited to be used for stirring in silicon wafer cutting slurry, but can also be used in other industrial applications that require stirring. the

Implementation of the silicon wafer cutting slurry stirring device of the present invention, since the stirring device includes a screw agitator placed in the mixing tank, the interlayer flow of the particles when the viscous fluid moves at a low speed is increased, thereby improving the powder in the slurry in the organic matter. Excellent dispersion efficiency, reduce the occurrence of agglomeration, further improve the stirring efficiency, shorten the production process; the stirring device has a simple structure and low cost. the

What is disclosed above is only a preferred embodiment of the utility model, and of course it cannot limit the scope of rights of the utility model. Therefore, the equivalent changes made according to the claims of the utility model are still covered by the utility model. scope. the

Claims (8)

1. A novel silicon wafer cutting slurry stirring device, used for the stirring of solar silicon wafer multi-wire cutting slurry, is characterized in that, said stirring device comprises a stirring tank and is placed in said mixing tank by a first stirring An anchor stirrer composed of a rod, a stirring shaft, and a second stirring rod, the first stirring rod and the second stirring rod are arranged at opposite ends of the stirring shaft in a staggered manner at an angle to each other; The stirring device also includes a screw agitator placed in the mixing tank, and the screw agitator is associated with the anchor agitator. 2 . The novel silicon wafer cutting slurry stirring device according to claim 1 , wherein the screw agitator comprises a mandrel and an impeller surrounding the mandrel, and the impeller is helical. 3. The novel silicon wafer cutting slurry stirring device according to claim 2, wherein the mandrel and the impeller are integrally formed. 4. The new silicon wafer cutting slurry stirring device according to claim 2, characterized in that, the screw stirrer and the anchor stirrer are driven to rotate by the same driving member. 5. The novel silicon wafer cutting slurry stirring device as claimed in claim 4, characterized in that, the mandrel is covered and arranged on the stirring shaft of the anchor stirrer, driven by the driving member The operation of the stirring shaft can synchronously drive the rotation of the mandrel. 6. The new silicon wafer cutting slurry stirring device according to claim 1, wherein the bottom surface of the mixing tank is set as a smooth and excessive curved surface; The second stirring rod is a curved rod-shaped structure, and the curvature of the second stirring rod is set to be the same as the curved surface of the bottom surface. 7 . The novel silicon wafer cutting slurry stirring device according to claim 6 , wherein the first stirring rod, the stirring shaft and the second stirring rod are respectively arranged vertically. the 8. The novel silicon wafer cutting slurry stirring device according to any one of claims 2-5, characterized in that the impeller is a threaded element with various leads or multiple staggered angles. the

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