Furnace burden stuffy crucible knocking device

Abstract

The utility model provides a furnace material stuffy crucible knocking device, and relates to the technical field of single crystal pulling rods. The crucible knocking device comprises a working support, a supporting table is arranged at the bottom of the working support, a crucible knocking mechanism is arranged on the portion, above the supporting table, of the working support and comprises a hydraulic cylinder arranged on the working support, the hydraulic cylinder is vertically arranged, a piston rod of the hydraulic cylinder is vertically downward, and the bottom end of the piston rod of the hydraulic cylinder is connected with an elastic assembly. The bottom end of the elastic assembly is connected with a hammer head which is cylindrical, and the outer diameter of the hammer head is not larger than the inner diameter of a crucible edge bottom hole. According to the utility model, the falling efficiency of materials on the crucible edge is improved, and the crucible edge is protected to a certain extent.

Description

Technical Field

[0001] The utility model relates to the technical field of single crystal pulling, and particularly relates to a device for knocking a crucible with smothered furnace charge. Background Art

[0002] Photovoltaic power generation is a green energy source for sustainable development. With the competition in the photovoltaic industry, the price of single crystal silicon wafers has been continuously decreasing. For the single crystal pulling industry, how to effectively reduce costs, how to reduce the loss and waste caused by silicon material scrapping, and how to improve the recycling and charging quality of the smothered furnace charge by improving the crucible knocking and collection method have become inevitable research topics in the industry.

[0003] At present, after normal furnace shutdown and other abnormalities in single crystal pulling that require smothered furnace shutdown, the remaining material in the crucible is called smothered furnace charge. This part of the material goes through processes such as initial charging, multiple recharging and melting, and then crystal pulling - shoulder releasing - shoulder turning - equal diameter, etc. After multiple crystal rods are pulled, the remaining material in the crucible is left. This part of the material can be divided into different weight ranges and recycled and charged again in the form of recycled material.

[0004] In the prior art, the method of knocking and collecting the crucible is obsolete. When the crucible rim opening faces upward, it directly knocks on the crucible rim. This method not only makes it difficult to knock out the smothered furnace charge, but also cannot effectively protect the crucible rim, increasing the probability of damage to the crucible rim and failing to achieve cost reduction and efficiency improvement. Content of the Utility Model

[0005] The purpose of the utility model is to develop a device for knocking a crucible with smothered furnace charge that can improve the falling - off efficiency of the material on the crucible rim and has a certain protective effect on the crucible rim.

[0006] The utility model is realized through the following technical solutions:

[0007] A device for knocking a crucible with smothered furnace charge includes:

[0008] A working support;

[0009] A support platform, which is arranged at the bottom of the working support;

[0010] A crucible - knocking mechanism, which is arranged on the working support above the support platform;

[0011] Among them, the crucible - knocking mechanism includes a hydraulic cylinder arranged on the working support. The hydraulic cylinder is vertically arranged and its piston rod is vertically downward. The bottom end of the piston rod of the hydraulic cylinder is connected with an elastic component, and the bottom end of the elastic component is connected with a hammer head. The hammer head is cylindrical and its outer diameter is not greater than the inner diameter of the bottom hole of the crucible rim.

[0012] Optionally, the working support includes two bases. A support column is arranged on the base, and a cross column is arranged on the two support columns. The hydraulic cylinder is arranged on the cross column.

[0013] Optionally, the base is strip-shaped and the two bases are arranged in parallel. The support column is vertically provided at the middle of the top end of the base. A horizontally arranged cushion plate is provided between the bottoms of the two bases, and the support table is arranged on the cushion plate.

[0014] Optionally, a hydraulic system for driving the hydraulic cylinder is provided on the support column and the cross column, and a control handle for controlling the hydraulic cylinder is provided on one of the support columns.

[0015] Optionally, the elastic component includes an upper support plate connected to the bottom end of the piston rod of the hydraulic cylinder and a lower support plate connected to the top end of the hammer head. A plurality of spring telescopic rods are provided between the upper support plate and the lower support plate.

[0016] Optionally, the upper support plate and the lower support plate are in the shape of coaxial discs. A guide cylinder is coaxially provided at the center of the top of the lower support plate. A guide rod is coaxially and slidably arranged in the guide cylinder, and the top end of the guide rod is connected to the center of the bottom of the upper support plate.

[0017] Optionally, the spring telescopic rods are arranged parallel to the axial direction of the guide cylinder and the guide rod, and the plurality of spring telescopic rods are arranged at equal intervals in a circular track around the axis of the guide cylinder.

[0018] Optionally, the bottom end of the piston rod of the hydraulic cylinder is provided with a frustum-shaped first enlarged end. The smaller end of the first enlarged end is coaxially connected to the piston rod, and a disc-shaped first connecting disc is coaxially provided at the larger end of the first enlarged end. The size of the first connecting disc is adapted to the upper support plate. A plurality of flange holes are provided at opposite positions on the first connecting disc and the upper support plate, and the first connecting disc and the upper support plate are flange-connected.

[0019] Optionally, the top end of the hammer head is coaxially provided with a frustum-shaped second enlarged end. The smaller end of the second enlarged end is coaxially connected to the hammer head, and a second connecting disc is coaxially connected to the larger end of the second enlarged end. The size of the second connecting disc is adapted to the lower support plate. A plurality of flange holes are provided at opposite positions on the second connecting disc and the lower support plate, and the second connecting disc and the lower support plate are flange-connected.

[0020] Optionally, the support table is in the shape of a cuboid. A plurality of cuboid-shaped support blocks are evenly arranged in a matrix at the bottom of the support table. A circle of vertically arranged silicon material baffles is provided at the edge of the top of the support table, and a polyurethane inner pad is provided on the top of the support table.

[0021] The beneficial effects of the present utility model are:

[0022] The utility model develops a device specifically for knocking on the stuffy furnace charge to make the stuffy furnace charge fall off from the crucible wall. The crucible wall is placed with the flipping opening facing upwards, and the hammer head for knocking enters through the bottom hole of the crucible wall to extrude the material. The crucible wall is more evenly stressed during this process, avoiding easy damage caused by excessive local knocking force. Compared with traditional manual knocking, the falling-off efficiency of the material on the crucible wall is greatly improved. Moreover, during the process of the hammer head knocking down the material, under the elastic force of the elastic component, the extrusion force exerted by the hammer head on the material gradually increases as the elastic component is compressed, further achieving a protective effect on the crucible wall and avoiding damage to the crucible wall caused by the material being instantly impacted with a large force. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 It is a structural diagram of the utility model;

[0025] Figure 2 It is a structural diagram of the elastic component and the hammer head;

[0026] Figure 3 It is a structural diagram of the support table.

[0027] Reference numerals: 1, base; 2, support column; 3, cross column; 4, hydraulic cylinder; 5, hammer head; 6, support table; 7, backing plate; 8, piston rod; 9, first enlarged end; 10, first connecting disk; 11, upper support plate; 12, spring telescopic rod; 13, guide cylinder; 14, guide rod; 15, lower support plate; 16, second connecting disk; 17, second enlarged end; 18, silicon material baffle; 19, support block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] In the following text, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present invention. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.

[0029] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0030] The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0031] As Figures 1 to 3 shown, the present utility model discloses a tapping device for a smothering furnace charge, which includes a gantry-shaped working bracket. A tapping mechanism is provided on the working bracket, and a support platform 6 is provided at the bottom of the working bracket. The crucible flange is placed with its opening facing downwards on the support platform 6, and the tapping mechanism strikes the smothering furnace charge through the bottom hole at the bottom of the crucible flange.

[0032] The working bracket includes two horizontally arranged bases 1. Both bases 1 are in strip shape and are arranged parallel to each other. A horizontally arranged backing plate 7 is provided between the bottoms of the two bases 1. The backing plate 7 is a steel plate, and the support platform 6 is placed on the backing plate 7. Vertically arranged support columns 2 are respectively provided in the middle of the tops of the two bases 1. The height of the support columns 2 is greater than the height of the crucible flange. A horizontally arranged cross column 3 is provided at the tops of the two support columns 2, and the tapping mechanism is provided on the cross column 3.

[0033] The tapping mechanism includes a hydraulic cylinder 4 vertically provided in the middle of the cross column 3. The piston rod 8 of the hydraulic cylinder 4 moves up and down vertically, and an elastic component is connected to the bottom end of the piston rod 8, and a hammer head 5 is connected to the bottom end of the elastic component.

[0034] A hydraulic system for driving the hydraulic cylinder 4 is provided on the support column 2 and the cross column 3. A control handle for controlling the hydraulic cylinder 4 is provided on one of the support columns 2.

[0035] The elastic component includes an upper support plate 11 and a lower support plate 15 below it. The upper support plate 11 and the lower support plate 15 are arranged in parallel and are in the shape of coaxial discs. A guide cylinder 13 is coaxially provided at the center of the top of the lower support plate 15. A guide rod 14 is coaxially and slidably arranged in the guide cylinder 13. The top end of the guide rod 14 is connected to the center of the bottom of the upper support plate 11. A plurality of spring telescopic rods 12 are provided around the guide cylinder 13 and the guide rod 14. The spring telescopic rods 12 are vertically arranged and are respectively connected to the upper support plate 11 and the lower support plate 15 at the top and bottom. The plurality of spring telescopic rods 12 are arranged at equal intervals in a circular track around the axis of the guide cylinder 13.

[0036] At the bottom end of the piston rod 8 of the hydraulic cylinder 4, there is a frustum-shaped first enlarged end 9. The smaller end of the first enlarged end 9 is coaxially connected to the piston rod 8, and a disc-shaped first connecting plate 10 is coaxially provided at the larger end of the first enlarged end 9. The size of the first connecting plate 10 is adapted to the upper support plate 11. A plurality of flange holes are provided on the first connecting plate 10 and the upper support plate 11 at opposite positions, and the first connecting plate 10 is flange-connected to the upper support plate 11.

[0037] The hammer head 5 is cylindrical with an outer diameter adapted to the inner diameter of the bottom hole of the crucible ring. A frustum-shaped second enlarged end 17 is coaxially provided at the top end of the hammer head 5. The smaller end of the second enlarged end 17 is coaxially connected to the hammer head 5, and a second connecting plate 16 is coaxially connected to the larger end of the second enlarged end 17. The size of the second connecting plate 16 is adapted to the lower support plate 15. A plurality of flange holes are provided on the second connecting plate 16 and the lower support plate 15 at opposite positions, and the second connecting plate 16 is flange-connected to the lower support plate 15.

[0038] The support table 6 is cuboid-shaped. At the bottom of the support table 6, there are a plurality of cuboid-shaped support blocks 19 arranged in a matrix and evenly distributed. A circle of vertically arranged silicon material baffles 18 is provided at the top edge of the support table 6. The height of the silicon material baffles 18 is at least 10 cm. A polyurethane inner pad is provided on the top of the support table 6.

[0039] When knocking the crucible ring, turn the crucible ring over so that its opening faces downward and place it on the support table 6, ensuring that the bottom hole of the crucible ring is on the lifting trajectory of the hammer head 5. Control the operation of the hydraulic cylinder 4 through the control handle. The piston rod 8 of the hydraulic cylinder 4 descends, driving the elastic component and the hammer head 5 to descend. The hammer head 5 enters the bottom hole of the crucible ring and contacts the material at the bottom of the crucible ring. As the piston rod 8 continues to descend, the elastic component is gradually compressed, and the extrusion force on the material gradually increases. Until the spring telescopic rod 12 is compressed to the maximum stroke, the material receives the maximum extrusion force. The hammer head 5 repeatedly knocks the material at the bottom hole of the crucible ring to make it fall off. After the material is separated from the crucible ring, it falls on the support table 6.

[0040] The utility model develops a device specifically for knocking the stuffy furnace material to make the stuffy furnace material fall off from the crucible ring. The crucible ring is placed with its opening facing downward. The hammer head 5 for knocking enters the crucible ring from the bottom hole to extrude the material. The crucible ring is more evenly stressed during this process, avoiding being easily damaged due to excessive local knocking force. Compared with traditional manual knocking, the falling-off efficiency of the material on the crucible ring is greatly improved. And when the hammer head 5 knocks the material downward, under the elastic force of the elastic component, the extrusion force exerted by the hammer head 5 on the material gradually increases as the elastic component is compressed, further achieving a protective effect on the crucible ring and avoiding damage to the crucible ring caused by the material being instantaneously impacted with a large force.

[0041] The above embodiments are only the preferred embodiments of the present utility model and do not limit the technical solutions of the present utility model. Any technical solution that can be achieved on the basis of the above embodiments without creative work shall be regarded as falling within the scope of the patent rights of the present utility model.

Claims

1. A device for knocking the crucible of the closed furnace charge, characterized in that, Comprising: Working bracket; Supporting platform, provided at the bottom of the working bracket; Crucible knocking mechanism, provided on the working bracket above the supporting platform; Wherein, the crucible knocking mechanism includes a hydraulic cylinder provided on the working bracket, the hydraulic cylinder is vertically arranged and its piston rod is vertically downward, the bottom end of the piston rod of the hydraulic cylinder is connected with an elastic component, the bottom end of the elastic component is connected with a hammer head, the hammer head is cylindrical and its outer diameter is not greater than the inner diameter of the crucible bottom hole.

2. The crucible knocking device for the closed furnace charge according to claim 1, characterized in that, The working bracket includes two bases, the bases are provided with supporting columns, and the two supporting columns are provided with a cross column, and the hydraulic cylinder is provided on the cross column.

3. The tapping device for the stuffy furnace charge according to claim 2, characterized in that The bases are strip-shaped and the two bases are arranged parallel to each other, the supporting columns are vertically provided at the middle of the top ends of the bases, a horizontally arranged cushion plate is provided between the bottoms of the two bases, and the supporting platform is provided on the cushion plate.

4. The crucible knocking device for the closed furnace charge according to claim 3, characterized in that, A hydraulic system for driving the hydraulic cylinder is provided on the supporting column and the cross column, and a control handle for controlling the hydraulic cylinder is provided on one of the supporting columns.

5. The crucible knocking device for the closed furnace charge according to claim 1, characterized in that, The elastic component includes an upper support plate connected to the bottom end of the piston rod of the hydraulic cylinder and a lower support plate connected to the top end of the hammer head, and a plurality of spring telescopic rods are provided between the upper support plate and the lower support plate.

6. The crucible knocking device for the closed furnace charge according to claim 5, characterized in that, The upper support plate and the lower support plate are coaxial disc-shaped, a guiding cylinder is coaxially provided at the center of the top of the lower support plate, a guiding rod is coaxially and slidably arranged in the guiding cylinder, and the top end of the guiding rod is connected to the center of the bottom of the upper support plate.

7. The crucible knocking device for the closed furnace charge according to claim 6, wherein, The spring telescopic rods are arranged parallel to the axial direction of the guiding cylinder and the guiding rod, and the plurality of spring telescopic rods are arranged at equal intervals in a circular track around the axis of the guiding cylinder.

8. The tapping device for the stuffy furnace charge according to claim 7, characterized in that, A frustum-shaped first enlarged end is provided at the bottom end of the piston rod of the hydraulic cylinder, the smaller end of the first enlarged end is coaxially connected to the piston rod, a disc-shaped first connecting plate is coaxially provided at the larger end of the first enlarged end, the size of the first connecting plate is adapted to the upper support plate, a plurality of flange holes opposite in position are provided on the first connecting plate and the upper support plate, and the first connecting plate and the upper support plate are flange-connected.

9. The crucible knocking device for the closed furnace charge according to claim 7, wherein, A frustum-shaped second enlarged end is coaxially provided at the top end of the hammer head, the smaller end of the second enlarged end is coaxially connected to the hammer head, a second connecting plate is coaxially connected to the larger end of the second enlarged end, the size of the second connecting plate is adapted to the lower support plate, a plurality of flange holes opposite in position are provided on the second connecting plate and the lower support plate, and the second connecting plate and the lower support plate are flange-connected.

10. The crucible knocking device for the closed furnace charge according to any one of claims 1 to 9, characterized in that, The supporting platform is cuboid-shaped, a plurality of cuboid-shaped supporting blocks are uniformly arranged in a matrix at the bottom of the supporting platform, a circle of vertically arranged silicon material baffles are provided at the edge of the top of the supporting platform, and a polyurethane material inner pad is provided on the top of the supporting platform.

Images