A mother alloy crushing and collection device

Abstract

This utility model belongs to the technical field of auxiliary equipment for monocrystalline silicon production, and provides a master alloy crushing and collection device, including: a crusher for crushing master alloys; and a collection box for storing the crushed master alloys. The crusher has a platform with a crushing hopper in the middle and a tungsten-cobalt hammer located directly above the crushing hopper. The tungsten-cobalt hammer can be raised and lowered by a first foot switch to fall into the crushing hopper and crush the master alloy placed there. This utility model uses a foot pedal to control the tungsten-cobalt hammer to rise and fall into the crushing hopper, which can crush the master alloy placed in the crushing hopper to a suitable size. The entire crushing process involves the master alloy being unpackaged and not in direct contact with the hands, effectively avoiding non-silicon contamination. At the same time, the foot-operated crushing method reduces the fatigue and inconvenience of handling the material.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for monocrystalline silicon production, specifically to a master alloy crushing and collection device. Background Technology

[0002] In the process of pulling single-crystal silicon rods, to adjust the electrical properties of the rods to achieve target values, appropriate dopants, such as gallium and phosphorus master alloys, are added to the silicon material. These master alloys are usually large blocks, heavy, and cannot be directly incorporated. They need to be broken down to a suitable size, collected, and then weighed in appropriate amounts for doping. In other words, the master alloy needs to undergo two stages before doping: breaking and collecting. Currently, these two stages each have the following problems:

[0003] 1. Crushing process

[0004] The master alloy is packaged in a single transparent bag. When crushing, gloves must be used to remove the master alloy or the transparent bag containing the master alloy must be placed directly on a simple platform and struck. The former poses a secondary contamination risk from gloves coming into contact with the master alloy, while the latter poses a contamination risk from the transparent bag being broken and adhering to the master alloy. In addition, both crushing methods pose a safety hazard of master alloy fragments flying and injuring workers during crushing.

[0005] 2. Collection Stage

[0006] The crushed master alloy is placed in a collection box in its original bag. However, the original bag is transparent and was damaged during crushing. The master alloy cannot be effectively sealed inside the bag, and long-term exposure to air poses a risk of contamination and introduction of non-silicon materials. Furthermore, the master alloy may leak out from the damaged area, resulting in waste and loss. Alternatively, the crushed master alloy is placed naked in a collection box according to its resistance range. The process of workers repeatedly opening and weighing the box poses a risk of glove contact contamination and introduction of non-silicon materials. Utility Model Content

[0007] To address the shortcomings of existing technologies, this utility model provides a master alloy crushing and collection device to solve the problems of excessive contamination contact, non-silicon introduction hazards, and safety risks during the crushing and collection process of existing master alloys.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A mother alloy crushing and collection device, comprising:

[0010] Crusher, used for crushing master alloys; and

[0011] Collection box, used to store the broken master alloy;

[0012] The crusher is equipped with a platform with a crushing bucket in the middle and a tungsten-cobalt hammer located directly above the crushing bucket. The tungsten-cobalt hammer can be raised and lowered by the control of a first foot switch to fall into the crushing bucket and crush the master alloy placed in the crushing bucket.

[0013] In one embodiment disclosed in this application, the crusher is provided with a hollow support column, and a suspension beam is provided after the upper end of the hollow support column passes through the platform. The tungsten-cobalt hammer is suspended below the suspension beam.

[0014] The hollow support column has a built-in driver, which is connected to the tungsten-cobalt hammer and electrically connected to the first foot switch.

[0015] The first foot switch is located on the lower left side of the front side of the platform for easy access by workers.

[0016] In one embodiment disclosed in this application, the bottom of the crushing bucket is provided with a detachable perforated plate, the shape of which is adapted to the head of the tungsten-cobalt hammer;

[0017] The crusher is equipped with a support frame and a collection box that is detachably connected to the support frame;

[0018] The collection box is located below the crushing hopper and is used to collect the master alloy that has been crushed to a suitable size and automatically leaks out from the perforated plate.

[0019] In one embodiment disclosed in this application, the platform is surrounded by side panels on all four sides, wherein the bottom ends of the side panels on the left, right and rear sides are flush to support the platform, and the bottom end of the front side panel is higher than the bottom ends of the other side panels to reserve sufficient foot space for the first foot switch.

[0020] The collection box has a drawer-type structure, which slides in conjunction with the bracket and slides through the front side panel for easy removal.

[0021] In one embodiment disclosed in this application, the rear side of the platform is connected to an organic cover via a pair of hinges to cover the crushing bucket and the tungsten-cobalt hammer to form a closed environment during the crushing of the master alloy;

[0022] The cover can be flipped backward to open and close by a pair of opening and closing mechanisms.

[0023] In one embodiment disclosed in this application, a pair of opening and closing mechanisms are symmetrically distributed on both sides of the collection box. Each opening and closing mechanism includes a connecting rod and a telescopic rod. One end of the connecting rod freely passes through an elongated hole opened on the platform and is hinged to the inner side of the cover away from the hinge. The other end is hinged to the movable end of the telescopic rod.

[0024] The fixed end of the telescopic rod is connected to an energy storage device, and the energy storage device is electrically connected to a second foot switch;

[0025] The second foot switch is located on the lower right side of the front side of the platform for easy access by workers.

[0026] In one embodiment disclosed in this application, a transparent observation window is provided on the front side of the hood.

[0027] In one embodiment disclosed in this application, the collection box is provided with a foot-operated lid to reduce contact contamination when opening the lid and accessing the master alloy.

[0028] In one embodiment disclosed in this application, the bottom of the collection box is provided with rollers.

[0029] In one embodiment disclosed in this application, the collection box is provided with multiple compartments for storing broken master alloys with different resistance levels.

[0030] Compared with the prior art, the beneficial effects of this utility model are:

[0031] 1. The tungsten-cobalt hammer is raised and lowered by stepping on the first foot pedal switch to fall into the crushing hopper. The master alloy placed in the crushing hopper can be crushed to a suitable size. The master alloy is unpackaged and does not come into direct contact with the hands during the entire crushing process, which effectively avoids non-silicon contamination. At the same time, the foot pedal crushing method reduces the fatigue and inconvenience of handling the parts.

[0032] 2. Collecting and transferring the master alloy through a collection box can reduce contact contamination between the master alloy and hands, prevent the introduction of non-silicon materials, and eliminate the safety hazard of workers being cut by the sharp edges of the broken master alloy when handling it.

[0033] 3. By covering the platform with a cover, the crushing of the master alloy takes place in a closed environment, completely eliminating the safety hazard of master alloy fragments flying and injuring workers during crushing; at the same time, the opening and closing mechanism allows the cover to be opened and closed by foot pedal, further reducing contact contamination between the master alloy and hands.

[0034] 4. The box lid can be quickly opened by stepping on it, allowing for easy and quick access to the broken master alloy placed in the self-sealing bag. This further reduces contact contamination between the master alloy and hands, ensuring the high purity of the master alloy and the quality of crystal pulling after incorporation. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a three-dimensional structural diagram of the crusher in this utility model;

[0037] Figure 2 This is a three-dimensional structural diagram of the internal structure of the crusher in this utility model, shown in a wireframe.

[0038] Figure 3 This is a three-dimensional structural diagram of the crusher behind the hidden cover in this utility model;

[0039] Figure 4 This is a three-dimensional structural diagram of the crusher's hidden cover and side plates in this utility model;

[0040] Figure 5 This is a three-dimensional structural diagram of the collection box in this utility model. Detailed Implementation

[0041] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0042] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0044] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0045] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0046] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this invention.

[0047] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0048] See Figures 1-5 As shown, this utility model provides a master alloy crushing and collection device, comprising:

[0049] Crusher 100, used for crushing master alloys; and

[0050] Collection box 200 is used to store the broken master alloy;

[0051] The crusher 100 is equipped with a platform 110 with a crushing bucket 111 in the middle and a tungsten-cobalt hammer 120 located directly above the crushing bucket 111. The tungsten-cobalt hammer 120 can be raised and lowered by the control of the first foot switch 130 to fall into the crushing bucket 111 to crush the master alloy placed in the crushing bucket 111.

[0052] Specifically, the crusher 100 is equipped with a hollow support column 140. The upper end of the hollow support column 140 passes through the platform 110 and is connected to a suspension beam 141. The tungsten-cobalt hammer 120 is suspended below the suspension beam 141. A driver (not shown in the figure) is internally installed in the hollow support column 140. The driver is connected to the tungsten-cobalt hammer 120 and electrically connected to a first foot switch 130. The first foot switch 130 is located on the lower left side of the front of the platform 110 for easy access by the operator. It should be noted that the driver can be a rope winch mechanism or a linkage telescopic mechanism; no specific limitation is made here.

[0053] During operation, the operator wears disposable PVC gloves and first wipes the surface of the crushing bucket 111 and the tungsten cobalt hammer 120 with lint-free paper soaked in alcohol. Then, the operator opens the transparent bag of the master alloy and moves it above the crushing bucket 111, allowing the master alloy to slide into the crushing bucket 111 from the bag. Next, the operator steps on the first foot switch 130 to activate the driver, which drives the tungsten cobalt hammer 120 to descend into the crushing bucket 111 to crush the master alloy. Afterward, the operator releases the first foot switch 130, and the driver resets, causing the tungsten cobalt hammer 120 to rise. Stepping on the first foot switch 130 multiple times will crush the master alloy to the appropriate size. Finally, the crushed master alloy is transferred to the collection box 200 for storage. When doping is required, an appropriate amount of master alloy is weighed from the collection box 200 and then added to the silicon material. In other words, by stepping on the first foot switch 130, the tungsten cobalt hammer 120 is controlled to move up and down to fall into the crushing bucket 111. The master alloy placed in the crushing bucket 111 can be crushed to a suitable size. The master alloy is unpackaged and does not come into direct contact with the hands during the entire crushing process, which effectively avoids non-silicon contamination. At the same time, the foot-operated crushing method reduces the fatigue and inconvenience of handling the parts.

[0054] To facilitate the transfer of the crushed master alloy from the crushing hopper 111 to the collection box 200, the bottom of the crushing hopper 111 is equipped with a detachable perforated plate, the shape of which is adapted to the head of the tungsten cobalt hammer 120. The crusher 100 is equipped with a support 150 and a collection box 160 detachably connected to the support 150. The collection box 160 is located below the crushing hopper 111 and is used to collect the master alloy crushed to a suitable size and automatically leaking down from the perforated plate. During the crushing process, with the impact of the tungsten cobalt hammer 120, the master alloy crushed to a suitable size (the particle size can pass through the mesh of the perforated plate) can automatically leak down from the perforated plate and fall into the collection box 160 for temporary collection. After all the master alloy has been crushed to a suitable size and leaked down from the perforated plate into the collection box 160, the collection box 160 is removed from the support 150, the crushed master alloy is poured into a self-sealing bag, sealed, and labeled with the resistance level and supplier information before being stored in the collection box 200. The perforated plate is detachable and replaceable, and the size (particle size) of the crushed master alloy can be adjusted by changing the perforated plate with different mesh diameters. That is to say, by collecting and transferring the master alloy through the collection box 160, the contact contamination between the master alloy and the hands can be reduced, the introduction of non-silicon can be prevented, and the safety hazard of workers being cut by the sharp edges of the crushed master alloy when handling it can be eliminated.

[0055] See Figure 3 As shown, the platform 110 is surrounded by side plates 112. The bottom ends of the left, right, and rear side plates 112 are flush to support the platform 110. The bottom end of the front side plate 112 is higher than the bottom ends of the other side plates 112 to provide sufficient foot space for the first foot switch 130. The collection box 160 has a drawer-type structure, which slides with the bracket 150 and slides through the front side plate 112 for easy removal. When it is necessary to transfer the broken master alloy, the operator can pull out the collection box 160 from the front of the platform 110.

[0056] The platform 110 is connected to a cover 170 via a pair of hinges 113 at its rear. This cover encloses the crushing bucket 111 and the tungsten-cobalt hammer 120 to create a closed environment during the crushing of the master alloy. The cover 170 can be flipped backward by a pair of opening and closing mechanisms 180. Specifically, the pair of opening and closing mechanisms 180 (see details...) Figure 4As shown, the opening and closing mechanisms 180 are symmetrically distributed on both sides of the collection box 160. Each mechanism includes a connecting rod 181 and a telescopic rod 182. One end of the connecting rod 181 freely passes through the elongated hole 114 on the platform 110 and is hinged to the inner side of the cover 170 away from the hinge 113. The other end is hinged to the movable end of the telescopic rod 182. The fixed end of the telescopic rod 182 is connected to an energy storage device 183, which is electrically connected to a second foot switch 184. The second foot switch 184 is located on the lower right side of the front of the platform 110 (within the foot space) for easy operation by the operator. It should be noted that the medium stored in the energy storage device 183 can be compressed air or electrical energy, which is not specifically limited here. The operator steps on the second foot switch 184, causing the medium stored in the energy storage device 183 to flow to the telescopic rod 182, which drives the movable end of the telescopic rod 182 to extend upward, lifting the cover 170 along the connecting rod 181. At the same time, the connecting rod 181 tilts along the elongated hole 114, using the lever principle to make the cover 170 rotate around the hinge 113, thereby opening the cover. At this time, the operator can use lint-free paper dipped in alcohol to wipe and clean the surface of the platform 110 and the tungsten cobalt hammer 120, and open the transparent bag of the master alloy and move it above the crushing bucket 111, so that the master alloy slides from the bag into the crushing bucket 111. Releasing the second foot switch 184, the cover 170 automatically closes on the platform 110 under its own gravity, thus closing the cover. Afterwards, repeatedly stepping on the first foot switch 130 allows the master alloy to be crushed in a closed environment. In other words, by covering the platform 110 with the cover 170, the crushing of the master alloy is carried out in a closed environment, which completely eliminates the safety hazard of master alloy fragments flying and injuring the operators during crushing; at the same time, the opening and closing mechanism 180 is used to open and close the cover 170 by foot pedal, which further reduces the contact contamination between the master alloy and the hands.

[0057] To facilitate observation of the crushing progress of the master alloy, a transparent observation window 171 is provided on the front side of the cover 170 (the side away from the hinge 113).

[0058] See Figure 5 As shown, the collection bin 200 is equipped with a foot-operated lid 210 to reduce hand contact contamination when opening the lid and retrieving the master alloy. Specifically, the structure of the collection bin 200 is similar to that of a foot-operated trash can, which is existing technology and will not be described in detail here. The lid 210 can be quickly opened by foot, allowing for easy and quick access to the broken master alloy placed in a self-sealing bag. This further reduces hand contact contamination with the master alloy, ensuring the high purity of the master alloy and the quality of the crystal pulling process after incorporation.

[0059] The collection box 200 is equipped with wheels at the bottom (not shown in the figure). The wheels make the collection box 200 easy to move and can be used in various locations.

[0060] Unlike pedal trash cans, the collection bin 200 has multiple compartments (not shown in the figure) for storing broken master alloys with different resistance levels.

[0061] In summary, this utility model allows for foot-operated crushing of the master alloy in a closed environment using a crusher 100, followed by collection of the crushed master alloy using a foot-operated, openable collection box 200. Throughout the crushing and collection process, the master alloy does not come into direct contact with the hands, significantly reducing non-silicon and contact contamination. This ensures the high purity of the master alloy and the quality of crystal pulling after incorporation. Furthermore, the operation is quick, convenient, time-saving, and labor-saving, effectively protecting workers from injuries caused by flying master alloy fragments during crushing and from cuts from the sharp edges of the crushed master alloy, thus completely eliminating safety hazards during operation.

[0062] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the technical solutions of this utility model. Any technical solution that can be implemented based on the above embodiments without creative effort should be considered to fall within the scope of protection of this utility model patent.

Claims

1. A master alloy breaking and collecting apparatus, characterized by, include: Crusher, used for crushing master alloys; and Collection box, used to store the broken master alloy; The crusher is equipped with a platform with a crushing bucket in the middle and a tungsten-cobalt hammer located directly above the crushing bucket. The tungsten-cobalt hammer can be raised and lowered by the control of a first foot switch to fall into the crushing bucket and crush the master alloy placed in the crushing bucket.

2. The master alloy crushing and collection equipment according to claim 1, characterized in that: The crusher is equipped with a hollow support column, and the upper end of the hollow support column passes through the platform and is equipped with a suspension beam. The tungsten-cobalt hammer is suspended below the suspension beam. The hollow support column has a built-in driver, which is connected to the tungsten-cobalt hammer and electrically connected to the first foot switch. The first foot switch is located on the lower left side of the front side of the platform for easy access by workers.

3. The master alloy crushing and collection equipment according to claim 1 or 2, characterized in that: The bottom of the crushing bucket is provided with a detachable perforated plate, the shape of which is adapted to the head of the tungsten-cobalt hammer. The crusher is equipped with a support frame and a collection box that is detachably connected to the support frame; The collection box is located below the crushing hopper and is used to collect the master alloy that has been crushed to a suitable size and automatically leaks out from the perforated plate.

4. The master alloy crushing and collection equipment according to claim 3, characterized in that: The platform is surrounded by side panels on all four sides. The bottom ends of the side panels on the left, right and rear sides are flush with each other to support the platform. The bottom end of the front side panel is higher than the bottom ends of the other side panels to provide enough foot space for the first foot switch. The collection box has a drawer-type structure, which slides in conjunction with the bracket and slides through the front side panel for easy removal.

5. The master alloy crushing and collection equipment according to claim 4, characterized in that: The platform is connected to an organic cover at the rear by a pair of hinges, which is used to cover the crushing bucket and the tungsten-cobalt hammer to create a closed environment during the crushing of the master alloy. The cover can be flipped backward to open and close by a pair of opening and closing mechanisms.

6. The master alloy crushing and collection equipment according to claim 5, characterized in that: A pair of opening and closing mechanisms are symmetrically distributed on both sides of the collection box. Each opening and closing mechanism includes a connecting rod and a telescopic rod. One end of the connecting rod freely passes through the elongated hole opened on the platform and is hinged to the inner side of the cover away from the hinge. The other end is hinged to the movable end of the telescopic rod. The fixed end of the telescopic rod is connected to an energy storage device, and the energy storage device is electrically connected to a second foot switch; The second foot switch is located on the lower right side of the front side of the platform for easy access by workers.

7. The mother alloy breaking and collecting apparatus according to claim 5 or 6, characterized in that, A transparent observation window is provided on the front side of the hood.

8. The mother alloy breaking and collecting apparatus of claim 1, wherein, The collection box is equipped with a foot-operated lid to reduce contact contamination when opening the lid and handling the master alloy.

9. The master alloy crushing and collection equipment according to claim 1 or 8, characterized in that, The bottom of the collection box is equipped with wheels.

10. The master alloy crushing and collection equipment according to claim 9, characterized in that, The collection box has multiple compartments for storing broken master alloys with different resistance levels.

Images