Screening mechanism of stone breaking equipment for silicon-carbon alloy production

Abstract

A screening mechanism of stone breaking equipment for silicon-carbon alloy production comprises a box body, the top of the box body is provided with a feeding hopper communicated with the interior of the box body, the top of the box body is further provided with a smashing assembly for smashing silicon-carbon alloy, a screening plate located below the smashing assembly is arranged in the box body, and a vibration assembly is arranged between the screening plate and the box body. A reciprocating assembly for driving the screening plate to reciprocate is arranged on the box body, and a first collecting frame is slidably arranged at the bottom of the box body. After crushed silicon-carbon alloy fragments fall onto a screening plate, a reciprocating assembly drives the screening plate to reciprocate left and right, the silicon-carbon alloy fragments on the surface of the screening plate are flatly laid through reciprocating motion of the screening plate, the screening efficiency of the screening plate on the silicon-carbon alloy fragments is improved, the screening plate drives a vibration assembly to vibrate the silicon-carbon alloy fragments while reciprocating motion, and the screening efficiency of the silicon-carbon alloy fragments is improved. And therefore, the screening efficiency of the screening plate on the silicon-carbon alloy fragments is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of alloy production, and specifically relates to a screening mechanism for a stone-breaking device used in the production of silicon-carbon alloy. Background Art

[0002] An alloy is a substance with metallic properties synthesized by two or more metals and metals or non-metals through a certain method, generally obtained by melting into a uniform liquid and solidifying. During the production of silicon-carbon alloy, it needs to be crushed, and after crushing, it is screened to obtain silicon-carbon alloy fragments that meet certain specifications and dimensions. Therefore, a screening mechanism for a stone-breaking device used in the production of silicon-carbon alloy is required.

[0003] For example, in the patent document with the publication number "CN116747948A" and the name "A limestone crusher for the production of portland cement clinker", the patent document includes a machine shell, and a crushing roller is arranged inside the machine shell. There are two groups of the crushing rollers, and the two groups of the crushing rollers are engaged with each other. One end of each of the two groups of the crushing rollers penetrates through the machine shell and extends to the outside of the machine shell, and transmission gears are fixedly connected to the ends of the two groups of the crushing rollers extending to the outside of the machine shell. The two transmission gears are meshed with each other. One end of the machine shell away from the transmission gear penetrates through the other side of the machine shell and is fixedly connected with a first pulley; a screening and collecting mechanism is arranged inside the machine shell. Through the structural design of the screening and collecting mechanism, the function of screening the crushed limestone fragments and collecting the larger limestone fragments for secondary crushing is realized.

[0004] However, during the use and processing of the above-mentioned document, since the limestone will continuously fall on the middle part of the top of the screening plate after being crushed by the crushing roller, the crushed limestone is prone to accumulate on the top of the screening plate. Although the cam can drive the screening plate to move up and down repeatedly to achieve the effect of vibrating and screening the limestone fragments, the up and down movement of the screening plate cannot quickly spread the limestone fragments flat on the surface of the screening plate, resulting in a relatively low screening efficiency of the screening plate for the crushed limestone fragments and affecting the working efficiency. Summary of the Invention

[0005] The purpose of the present invention is to address the deficiencies of the prior art and propose a screening mechanism for a stone-breaking device used in the production of silicon-carbon alloy, aiming to solve the technical problem that the up and down movement of the screening plate cannot quickly spread the limestone fragments flat on the surface of the screening plate, resulting in a relatively low screening efficiency of the screening plate for the crushed limestone as mentioned in the background art.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions: A screening mechanism for a stone-breaking device used in the production of silicon-carbon alloy, including a box body. A feed hopper communicating with its interior is arranged at the top of the box body. A crushing assembly for crushing the silicon-carbon alloy is also arranged at the top of the box body. A screening plate is arranged inside the box body below the crushing assembly. A vibration assembly is arranged between the screening plate and the box body. A reciprocating assembly for driving the screening plate to reciprocate is arranged on the box body. The screening plate reciprocates to spread the silicon-carbon alloy fragments on its surface flatly. And while the screening plate reciprocates, it drives the vibration assembly to vibrate it. A first collection box is slidably arranged at the bottom of the box body.

[0007] Working principle: During use, start the crushing assembly to crush the silicon-carbon alloy raw material. The crushed silicon-carbon alloy fragments fall onto the screening plate. When the reciprocating assembly works, it drives the screening plate to move left and right. The screening plate reciprocates to quickly spread the silicon-carbon alloy fragments on its surface flatly. And while the screening plate reciprocates, it drives the vibration assembly to vibrate it, thereby increasing the screening efficiency of the screening plate for the silicon-carbon alloy fragments.

[0008] The beneficial effects of the present invention are as follows: Since a vibration assembly is arranged between the screening plate and the box body, and a reciprocating assembly for driving the screening plate to reciprocate is arranged on the box body. Therefore, after the crushed silicon-carbon alloy fragments fall onto the screening plate, start the reciprocating assembly to drive the screening plate to reciprocate left and right. The screening plate reciprocates to quickly spread the silicon-carbon alloy fragments on its surface flatly, improving the screening efficiency of the screening plate for the silicon-carbon alloy fragments. And while the screening plate reciprocates, it is vibrated by the vibration assembly, thereby further improving the screening efficiency of the screening plate for the silicon-carbon alloy fragments.

[0009] Further, the crushing assembly includes two rotating shafts rotatably arranged inside the box body and symmetrically arranged. Crushing rollers are fixedly arranged on both rotating shafts. A first motor is fixedly arranged on the box body. The output end of the first motor is fixedly connected to one of the rotating shafts. A transmission assembly is arranged between the two rotating shafts.

[0010] Further, the transmission assembly includes two gears. The two gears are respectively fixedly arranged on the corresponding rotating shafts, and the two gears mesh with each other.

[0011] Further, the reciprocating assembly includes a fixed frame and a connecting rod. The connecting rod is slidably connected to one side of the box body. The fixed frame is fixedly arranged on one side of the box body. A connecting shaft is rotatably arranged on the fixed frame. A rotating rod is fixedly arranged on the connecting shaft. A sliding column is fixedly arranged at the end of the rotating rod away from the connecting shaft. The sliding column is slidably connected to the connecting rod. A moving rod is slidably arranged at the bottom of the connecting rod. A through groove is opened on one side of the box body. The moving rod passes through the through groove and is connected to the screening plate. A driving assembly for driving the connecting shaft to rotate is arranged on the fixed frame.

[0012] Further, the driving component includes a first pulley and a second pulley. The first pulley is fixedly arranged on the corresponding rotating shaft, the second pulley is fixedly arranged on the connecting shaft, and a belt is sleeved on the second pulley and the first pulley.

[0013] Further, the vibration component includes a telescopic rod and a wavy strip. The wavy strip is fixedly arranged in the through groove and is arranged along the length direction of the through groove. The wavy strip is slidably matched with the moving rod. One end of the telescopic rod is connected to the screening plate, and a slider is fixedly arranged at the other end of the telescopic rod. The slider is slidably connected to the inner wall of the box body. A spring is sleeved outside the telescopic rod. One end of the spring is connected to the screening plate, and the other end of the spring is fixedly connected to the slider.

[0014] Further, a frame body is fixedly arranged on the top of the screening plate. Two symmetrically arranged bearing rods are slidably arranged in the box body. The opposite sides of the two bearing rods are respectively rotatably connected to the frame body. The top of the bearing rod is fixedly connected to one end of the telescopic rod, and the bearing rod is fixedly connected to the moving rod. A baffle is rotatably arranged on one side of the frame body. A second motor is fixedly arranged on the frame body. The output end of the second motor is fixedly connected to the baffle. A flipping component for driving the frame body to flip is arranged on the bearing rod.

[0015] Further, the flipping component includes an electric push rod. A first hinge seat is fixedly arranged on the bearing rod, a second hinge seat is fixedly arranged on the frame body. One end of the electric push rod is hinged to the first hinge seat, and the other end of the electric push rod is hinged to the second hinge seat, and the electric push rod is arranged obliquely.

[0016] Further, a discharge port is formed on one side of the box body. A first guide plate is fixedly arranged obliquely in the discharge port. A second collection box is placed outside the box body and below the first guide plate.

[0017] Further, second guide plates which are arranged obliquely are symmetrically and fixedly arranged in the box body. The second guide plates are located between the crushing component and the screening plate. Description of the Drawings

[0018] Figure 1 is a three-dimensional view of the present invention; Figure 2 is a three-dimensional view of another perspective of the present invention; Figure 3 is the present invention Figure 2 magnified view at A; Figure 4 is a front cross-sectional view of the present invention; Figure 5 is a left cross-sectional view of the present invention; Figure 6 is a three-dimensional view of the present invention with the box body and the crushing component hidden; Figure 7This is a top view cross-sectional view of the reciprocating component of the present invention with the reciprocating component hidden.

[0019] Description of reference numerals: 1, box body; 2, feed hopper; 3, first motor; 4, first collection box; 5, discharge port; 6, first guide plate; 7, second collection box; 8, gear; 9, rotating shaft; 10, first pulley; 11, second pulley; 12, belt; 13, connecting shaft; 14, fixed frame; 15, rotating rod; 16, sliding column; 17, connecting rod; 18, guide groove; 19, guide block; 20, through groove; 21, wavy strip; 22, moving rod; 23, crushing roller; 24, second guide plate; 25, screening plate; 26, frame body; 27, sliding groove; 28, bearing rod; 29, slider; 30, telescopic rod; 31, spring; 32, baffle; 33, second motor; 34, second hinge seat; 35, first hinge seat; 36, electric push rod. Detailed implementation manner

[0020] The technical solutions in the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] As Figures 1 - 4 shown, a screening mechanism of a stone-breaking device for silicon carbide alloy production includes a box body 1. A feed hopper 2 communicating with its interior is installed at the center of the top of the box body 1. The top of the feed hopper 2 is hinged and installed with a cover plate (not shown in the figure) adapted to its opening size. When the cover plate is closed, it can block the flying particles generated during the crushing of the silicon carbide alloy, prevent the crushed particles of the silicon carbide alloy from splashing out through the opening of the feed hopper 2, and cause harm to the operator. A crushing component for crushing the silicon carbide alloy is also installed on the top of the box body 1. The crushing component includes two rotating shafts 9 rotatably installed in the box body 1 and arranged symmetrically. Both ends of the rotating shaft 9 respectively rotate through the box body 1. Both rotating shafts 9 are fixedly sleeved with crushing rollers 23, and the two crushing rollers 23 cooperate with each other to crush the silicon carbide alloy raw material. A first motor 3 is fixedly installed on the outside of the box body 1, and the output end of the first motor 3 is coaxially and fixedly connected to one of the rotating shafts 9.

[0022] As Figure 2 and Figure 3 shown, a transmission component is installed between the two rotating shafts 9. The transmission component includes two gears 8. One end of one of the rotating shafts 9 away from the first motor 3 passes through the box body 1 and extends to the outside of the box body 1, and both ends of the other rotating shaft 9 pass through the box body 1 and extend to the outside of the box body 1. Both ends of the two rotating shafts 9 away from the first motor 3 are fixedly and cooperatively installed with the corresponding gears 8, and the two gears 8 mesh with each other, so that the rotation directions of the two crushing rollers 23 are opposite, which is convenient for crushing the silicon carbide alloy raw material.

[0023] As Figures 4 - 7As shown in the figure, a screening plate 25 is installed inside the box body 1 below the crushing component to screen the crushed silicon carbide alloy fragments. A frame body 26 is fixedly installed along the contour of the top of the screening plate 25. Two bearing rods 28 arranged symmetrically are slidably installed inside the box body 1, and the opposite sides of the two bearing rods 28 are respectively rotationally fitted with the frame body 26. A first collection box 4 is slidably installed at the bottom of the box body 1 for collecting the silicon carbide alloy fragments that meet the specified size screened out by the screening plate 25. An avoidance opening is provided on one side of the bottom of the box body 1 to facilitate the sliding of the first collection box 4 out of the box body 1.

[0024] As Figures 2 - 6 shown in the figure, reciprocating components for driving the screening plate 25 to reciprocate are respectively installed on both sides of the box body 1. The reciprocating components include a fixed frame 14 and a connecting rod 17. Both ends of the connecting rod 17 are slidably fitted with one side of the box body 1. Two guiding grooves 18 are provided in a vertical arrangement on one side of the box body 1. Guide blocks 19 are respectively fixedly installed at both ends of the connecting rod 17, and the guide blocks 19 are slidably fitted with the corresponding guiding grooves 18. The fixed frame 14 is in a "U" shape and is fixedly installed on one side of the box body 1. A connecting shaft 13 is rotatably installed at the center of the fixed frame 14. A rotating rod 15 is fixedly installed at one end of the connecting shaft 13 close to the box body 1, and a sliding column 16 is fixedly installed at the end of the rotating rod 15 far from the connecting shaft 13. A connecting groove is provided along the length direction of the connecting rod 17. The connecting groove is Figure 3 shown in the figure. The sliding column 16 is slidably fitted with the connecting groove on the connecting rod 17, and the sliding column 16 can rotate relative to the connecting groove. A moving rod 22 is slidably installed at the bottom of the connecting groove on the connecting rod 17. A through groove 20 is provided on one side of the box body 1, and one end of the moving rod 22 passes through the through groove 20 and is fixedly connected to the corresponding bearing rod 28.

[0025] As Figure 3 shown in the figure, a driving component for driving the connecting shaft 13 to rotate is installed on the fixed frame 14. The driving component includes a first belt pulley 10 and a second belt pulley 11. The first belt pulley 10 is fixedly sleeved on one end of a corresponding one of the rotating shafts 9, the second belt pulley 11 is fixedly sleeved on one end of the connecting shaft 13, and a belt 12 is sleeved on the second belt pulley 11 and the first belt pulley 10.

[0026] In other embodiments, the driving component includes a first sprocket and a second sprocket. The first sprocket is fixedly sleeved on one end of a corresponding one of the rotating shafts 9, the second sprocket is fixedly sleeved on one end of the connecting shaft 13, and a chain is sleeved on the second sprocket and the first sprocket.

[0027] As Figure 5 shown in the figure, second guiding plates 24 arranged obliquely are symmetrically and fixedly installed inside the box body 1. The second guiding plates 24 are located between the crushing component and the screening plate 25 to prevent the silicon carbide alloy from directly falling into the first collection box 4 through the gap between the bearing rod 28 and the box body 1.

[0028] As shown Figures 3 - 7 in the figure, a vibration assembly is installed between the screening plate 25 and the box body 1. The vibration assembly includes a wavy strip 21 and four telescopic rods 30. The wavy strip 21 is fixedly installed in the through groove 20 and arranged along the length direction of the through groove 20. The wavy strip 21 includes a fixing plate, and a plurality of bumps with arc-shaped ends are integrally formed on the fixing plate along its length direction. The plurality of bumps are arranged at equal intervals, and arc-shaped transitions are provided at the joints of adjacent two bumps, so that the plurality of bumps and the arc-shaped transitions cooperate to form a wavy shape. The bumps and the arc-shaped transitions of the wavy strip 21 are both slidably matched with the moving rod 22. The four telescopic rods 30 are respectively installed at the ends of the two bearing rods 28. One end of the telescopic rod 30 is fixedly connected to the bearing rod 28, and the other end of the telescopic rod 30 is fixedly installed with a slider 29. Chute grooves 27 are symmetrically opened on both sides inside the box body 1, and the slider 29 is slidably matched and installed with the corresponding chute grooves 27 on the inner wall of the box body 1. A spring 31 is sleeved outside the telescopic rod 30. One end of the spring 31 is fixedly connected to the bearing rod 28, and the other end of the spring 31 is fixedly connected to the slider 29. By arranging the spring 31, a buffering effect is exerted on the bearing rod 28. The reciprocating assembly drives the screening plate 25 to reciprocate and quickly spread the silicon carbide alloy fragments on its surface. At the same time, when the screening plate 25 reciprocates, it is vibrated by the vibration assembly, thereby accelerating the screening efficiency of the screening plate 25 for the crushed silicon carbide alloy fragments.

[0029] The telescopic rod 30 includes a first sleeve and a second sleeve. One end of the first sleeve is fixedly connected to the slider 29, and the second sleeve is slidably installed in the first sleeve. One end of the second sleeve is fixedly connected to the bearing rod 28.

[0030] As Figure 6 and Figure 7As shown in the figure, an opening is provided on one side of the frame body 26. A baffle plate 32 is rotatably installed at the opening of the frame body 26 through a shaft rod. A second motor 33 is fixedly installed on one side of the frame body 26, and the output end of the second motor 33 is fixedly connected to the shaft rod on the baffle plate 32. The distance between the frame body 26 and the bearing rod 28 is greater than the length dimension of the second motor 33 to prevent interference between the second motor 33 and the bearing rod 28 when the frame body 26 is flipped. A flipping assembly for driving the frame body 26 to flip is installed on the bearing rod 28. The flipping assembly includes an electric push rod 36. A first hinge seat 35 is fixedly installed on one side of the bearing rod 28 close to the box body 1, and a second hinge seat 34 is fixedly installed on one side of the frame body 26 close to the box body 1. The bottom end of the electric push rod 36 is hinged to the first hinge seat 35 through a hinge shaft, and the output end of the electric push rod 36 is hinged to the second hinge seat 34 through a hinge shaft, and the electric push rod 36 is arranged obliquely. When the electric push rod 36 is started, the electric push rod 36 extends to drive the frame body 26 to flip, so that the frame body 26 drives the screening plate 25 to flip, and the silicon carbide alloy fragments that do not meet the specified size remaining on the screening plate 25 are poured out.

[0031] As Figure 1 , Figure 2 and Figure 4 shown, a discharge port 5 is provided on one side of the box body 1. A first guide plate 6 is fixedly installed obliquely in the discharge port 5 to prevent the silicon carbide alloy fragments that do not meet the specified size from falling into the first collection box 4 when the screening plate 25 is flipped. A second collection box 7 is placed outside the box body 1 and below the first guide plate 6 for collecting the silicon carbide alloy fragments that do not meet the specified size screened out by the screening plate 25.

[0032] Working principle: During use, start the first motor 3. The first motor 3 drives the corresponding rotating shaft 9 to rotate. The first rotating shaft 9 drives the corresponding crushing roller 23 to rotate. At the same time, one of the rotating shafts 9 drives the other rotating shaft 9 to rotate through two gears 8, and the other rotating shaft 9 drives the corresponding crushing roller 23 to rotate. Then, the silicon carbide alloy to be crushed is added into the box body 1 through the feed hopper 2, and the silicon carbide alloy falls between the two crushing rollers 23. Thus, the two crushing rollers 23 cooperate with each other to crush the silicon carbide alloy, and the crushed silicon carbide alloy fragments fall onto the screening plate 25.

[0033] During the rotation of the rotating shaft 9, the first pulley 10 is driven to rotate simultaneously. The first pulley 10 drives the second pulley 11 to rotate through the belt 12. The second pulley 11 drives the connecting shaft 13 to rotate. The connecting shaft 13 drives the rotating rod 15 to rotate. The rotating rod 15 drives the sliding column 16 to slide along the connecting groove on the connecting rod 17. Thus, the rotating rod 15 drives the connecting rod 17 to move left and right reciprocally through the sliding column 16. The connecting rod 17 drives the moving rod 22 to move. The moving rod 22 drives the bearing rod 28 to move. The bearing rod 28 drives the screening plate 25 to move left and right reciprocally through the frame 26. Thus, the silicon carbide alloy fragments on the top of the screening plate 25 are quickly spread out, avoiding the accumulation of silicon carbide alloy fragments on the top of the screening plate 25 and affecting the screening efficiency of the screening plate 25. The silicon carbide alloy fragments that meet the specification size after being screened by the screening plate 25 fall into the first collection box 4. After screening the silicon carbide alloy fragments, the first collection box 4 can be pulled out from the box body 1 to transport the silicon carbide alloy fragments to the next process.

[0034] Since the frame 26 is fixedly installed on the top of the screening plate 25, when the screening plate 25 moves left and right reciprocally, the silicon carbide alloy fragments will not fall from the edge of the screening plate 25. Thus, it is avoided that the silicon carbide alloy fragments fall into the first collection box 4 without being screened by the screening plate 25.

[0035] During the left and right reciprocating movement of the moving rod 22, it is in sliding fit with the convex blocks and arc transitions of the wavy strip 21. Thus, during the left and right reciprocating movement of the moving rod 22, it moves up and down simultaneously. Since the telescopic rods 30 and springs 31 are installed at the four corners of the bearing rod 28, the moving rod 22 can drive the bearing rod 28 to move up and down. The bearing rod 28 drives the screening plate 25 to move up and down through the frame 26. Thus, the screening plate 25 moves up and down simultaneously during the left and right reciprocating movement. The up and down movement of the screening plate 25 has the effect of vibrating and screening the silicon carbide alloy fragments, further improving the screening efficiency of the screening plate 25 for the silicon carbide alloy fragments. At the same time, some crushed silicon carbide alloy materials that meet the requirements are easily stuck in the sieve holes of the screening plate 25. When the screening plate 25 moves up and down, it can cause the silicon carbide alloy materials to collide with each other and knock out the fragments stuck in the sieve holes of the screening plate 25, thus avoiding the blockage of the sieve holes on the screening plate 25.

[0036] When it is necessary to pour out the silicon carbide alloy fragments that do not meet the specified dimensions on the surface of the screening plate 25, move the screening plate 25 to one side close to the discharge port 5, and then start the electric push rod 36. The output end of the electric push rod 36 extends to drive the frame 26 to turn over, and the frame 26 drives the screening plate 25 to turn over. At the same time, start the second motor 33, and the second motor 33 drives the baffle 32 to rotate, so as to pour out the silicon carbide alloy fragments on the surface of the screening plate 25 from the screening plate 25 onto the first guide plate 6 and fall into the second collection box 7 along the first guide plate 6. After pouring out the silicon carbide alloy fragments on the surface of the screening plate 25, the silicon carbide alloy fragments that do not meet the specified dimensions in the second collection box 7 can be poured into the feed hopper 3 for secondary crushing.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A screening mechanism for a stone crushing device for producing silicon-carbon alloy, comprising a housing (1), characterized in that: The top of the box (1) is provided with a feed hopper (2) connected to the inside of the box (1), and a crushing assembly for crushing the silicon-carbon alloy is also provided on the top of the box (1). A sieve plate (25) is provided in the box (1) and is located below the crushing assembly. A vibration assembly is provided between the sieve plate (25) and the box (1). A reciprocating assembly is provided on the box (1) to drive the sieve plate (25) to move back and forth. The sieve plate (25) moves back and forth to spread the silicon-carbon alloy fragments on its surface, and the sieve plate (25) moves back and forth while driving the vibration assembly to vibrate it. A first collecting frame (4) is slidably provided at the bottom of the box (1).

2. The screening mechanism of the stone breaking equipment for silicon-carbon alloy production according to claim 1 is characterized in that: The pulverizing assembly comprises two rotating shafts (9) rotatably arranged in a housing (1) and arranged symmetrically, the two rotating shafts (9) being fixedly provided with pulverizing rollers (23), a first motor (3) being fixedly provided on the housing (1), an output end of the first motor (3) being fixedly connected to one of the rotating shafts (9), and a transmission assembly being provided between the two rotating shafts (9).

3. The screening mechanism of the stone breaking equipment for silicon-carbon alloy production according to claim 2 is characterized in that: The transmission assembly comprises two gears (8), the two gears (8) are respectively fixedly arranged on corresponding rotating shafts (9), and the two gears (8) are meshed with each other.

4. The screening mechanism of the stone breaking equipment for silicon-carbon alloy production according to claim 2 is characterized in that: The reciprocating assembly comprises a fixed frame (14) and a connecting rod (17), the connecting rod (17) being slidably connected to one side of the box body (1), the fixed frame (14) being fixedly arranged on one side of the box body (1), a connecting shaft (13) being rotatably arranged on the fixed frame (14), a rotating rod (15) being fixedly arranged on the connecting shaft (13), a sliding column (16) being fixedly arranged on one end of the rotating rod (15) away from the connecting shaft (13), the sliding column (16) being slidably connected to the connecting rod (17), a moving rod (22) being slidably arranged at the bottom of the connecting rod (17), a through slot (20) being opened on one side of the box body (1), the moving rod (22) passing through the through slot (20) and being connected to the screening plate (25), and a driving assembly for driving the connecting shaft (13) to rotate is arranged on the fixed frame (14).

5. The screening mechanism of the stone breaking equipment for silicon-carbon alloy production according to claim 4 is characterized in that: The driving assembly comprises a first pulley (10) and a second pulley (11); the first pulley (10) is fixedly arranged on a corresponding rotating shaft (9); the second pulley (11) is fixedly arranged on a connecting shaft (13); and a belt (12) is sleeved on the second pulley (11) and the first pulley (10).

6. The screening mechanism of the stone breaking equipment for silicon-carbon alloy production according to claim 4 is characterized in that: The vibration assembly comprises a telescopic rod (30) and a wavy strip (21); the wavy strip (21) is fixedly arranged in the through groove (20) and arranged along the length direction of the through groove (20); the wavy strip (21) is slidably matched with the moving rod (22); one end of the telescopic rod (30) is connected to the screening plate (25); a slider (29) is fixedly arranged at the other end of the telescopic rod (30); the slider (29) is slidably connected to the inner wall of the box body (1); a spring (31) is sleeved on the outside of the telescopic rod (30); one end of the spring (31) is connected to the screening plate (25); and the other end of the spring (31) is fixedly connected to the slider (29).

7. The screening mechanism of the stone breaking equipment for silicon-carbon alloy production according to claim 6 is characterized in that: A frame (26) is fixedly provided on the top of the screening plate (25), two symmetrically arranged bearing rods (28) are slidably provided in the box body (1), the two bearing rods (28) are rotatably connected to the frame body (26) on opposite sides, the top of the bearing rod (28) is fixedly connected to one end of the telescopic rod (30), and the bearing rod (28) is fixedly connected to the moving rod (22), a baffle (32) is rotatably provided on one side of the frame body (26), a second motor (33) is fixedly provided on the frame body (26), an output end of the second motor (33) is fixedly connected to the baffle (32), and a flipping component for driving the frame body (26) to flip is provided on the bearing rod (28).

8. The screening mechanism of the stone breaking equipment for silicon-carbon alloy production according to claim 7 is characterized in that: The flip assembly comprises an electric push rod (36), a first hinge seat (35) is fixedly arranged on the bearing rod (28), a second hinge seat (34) is fixedly arranged on the frame (26), one end of the electric push rod (36) is hingedly connected to the first hinge seat (35), the other end of the electric push rod (36) is hingedly connected to the second hinge seat (34), and the electric push rod (36) is arranged in an inclined manner.

9. The screening mechanism of the stone breaking equipment for silicon-carbon alloy production according to claim 7, characterized in that: A material discharge port (5) is provided on one side of the box body (1), a first material guide plate (6) is fixedly and obliquely arranged inside the material discharge port (5), and a second collection frame (7) is placed outside the box body (1) and below the first material guide plate (6).

10. The screening mechanism of the stone breaking equipment for silicon-carbon alloy production according to claim 1, characterized in that: A second material guide plate (24) arranged in an inclined manner is symmetrically fixedly disposed in the box body (1), and the second material guide plate (24) is located between the crushing assembly and the screening plate (25).

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