CN114273058A - Energy-saving preparation equipment and preparation process for silicon-carbon negative electrode material of lithium battery - Google Patents

Abstract

The invention discloses an energy-saving preparation equipment and a preparation process of silicon carbon negative electrode material for lithium batteries, and relates to the technical field of lithium batteries. The material shaking part includes a transmission block that is fixedly connected to the inner wall of the transmission shell, the surface of the transmission block is provided with a wave-shaped guide groove, and the surface of the guide groove is slidably connected with two sliding columns, and the surfaces of the two sliding columns are hinged together. There is a transmission plate, the surface of the transmission plate is fixedly connected with a sleeve, and the surface of the sleeve is fixedly connected with a percussion ball. Through the operation of the driving mechanism, under the action of the variable speed component, the percussion ball is driven to perform variable-speed operation. The inner wall is slidably connected with a sieve plate. The present invention has the ability to focus on the area where the raw materials are easily adhered, and the speed of the percussion is variable speed percussion, which improves the efficiency of blanking, and the percussion range is large, so that the device has the A more practical effect.

Description

A kind of energy-saving preparation equipment and preparation process of silicon carbon anode material for lithium battery

technical field

The invention relates to the technical field of lithium batteries, in particular to an energy-saving preparation equipment of silicon carbon negative electrode materials for lithium batteries and a preparation process thereof.

Background technique

The negative electrode material of the lithium battery is an important part, and the negative electrode material usually needs to be pulverized, ground and mixed when the raw material is prepared.

At present, the existing preparation equipment has poor feeding and cleaning effects, and the ground and pulverized raw materials are easy to adhere to the inner wall of the shell, which will not only affect the mixing of the raw materials, but also may occur after long-term use. A condition of clogging and inefficiency inside the housing.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an energy-saving preparation equipment and a preparation process for silicon-carbon negative electrode materials for lithium batteries, which are equipped with concentrated percussion on the area that is easy to adhere to the raw materials, and the percussion speed is faster than variable-speed percussion, The efficiency of blanking is improved, and the knocking range is large, so that the device has the effect of better practicability, and solves the problems raised in the above-mentioned background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions: an energy-saving preparation equipment for silicon carbon negative electrode materials for lithium batteries, including a processing box, and the interior of the processing box is provided with a preliminary smashing part and a grinding and smashing part, and the processing box The bottom is provided with a drive mechanism that drives the grinding and smashing parts to operate, the surface of the processing box is provided with a transmission shell, and the inner wall of the transmission shell is provided with two hammers for knocking the surface of the processing box. Shaker parts.

The material shaking part includes a transmission block fixedly connected to the inner wall of the transmission shell, the surface of the transmission block is provided with a wavy guide groove, and the surface of the guide groove is slidably connected with two sliding columns, two The surface of the sliding column is jointly hinged with a transmission plate, the surface of the transmission plate is fixedly connected with a sleeve, and the surface of the sleeve is fixedly connected with a percussion ball. down, the knocking ball is driven to perform variable-speed operation, and a sieve plate is slidably connected to the inner wall of the processing box.

Optionally, the grinding and crushing component includes a crushing and grinding roller, and the surface of the crushing and grinding roller grinds protrusions.

Optionally, the driving mechanism includes a motor fixedly connected to the inner wall of the processing box, the rotating part of the motor is fixedly connected with a rotating rod, and the surface of the rotating rod is fixedly connected with the surface of the pulverizing and grinding roller, The surface of the rotating rod is pivotally connected with a support block, the surface of the support block is fixedly connected with the inner wall of the processing box, and the surface of the rotating rod is connected with two connecting rods through a bevel gear transmission mechanism. , the side of the processing box is provided with an opening 1 through which the connecting rod passes through and is rotatably connected with the fixed axis.

Optionally, the speed change component includes a rotating shaft 1 and a rotating shaft 2 that are rotatably connected to the inner wall of the transmission housing. A turntable is fixedly connected to the surface of the turntable, a slider is fixedly connected to the surface of the turntable, and a swinging plate is fixedly connected to the surface of the second rotating shaft. The surface of the swinging plate is provided with a chute for the slider to slide. , the surface of the second rotating shaft is provided with a connecting part that is drive-connected with the sleeve.

Optionally, the connecting member includes a sliding rod slidably connected to the inner side of the sleeve, an end of the sliding rod is fixedly connected with a rack row, the surface of the second rotating shaft is fixedly connected with an incomplete gear, and the The surface of the rack row is fixedly connected with a load-bearing block, and the inner wall of the transmission casing is provided with a second chute for the load-bearing block to slide.

Optionally, the surface of the sieve plate is fixedly connected with an L-shaped rod, and the surface of the processing box is provided with a chute 3 for the L-shaped rod to slide, and the L-shaped rod and the slider are intermittently in contact with each other. catch.

Optionally, a mounting plate is fixedly connected to the surface of the rotating rod, and a stirring plate is fixedly connected to the surface of the mounting plate.

Optionally, the surface of the transmission plate is fixedly connected with a moving block, the surface of the moving block is provided with an opening 2 for the moving rod to pass through and is slidably connected with it, and the surface of the moving rod is slidably connected with a plug board, The side of the processing box is provided with an opening 3 through which the plug board is inserted and slidably connected with it.

A preparation process for energy-saving preparation equipment for silicon carbon negative electrode materials for lithium batteries, comprising the following steps:

Step S1: the feeding of raw materials: the raw materials are put into the interior of the processing box from the hopper;

Step S2: Crushing of raw materials: Preliminary crushing of the raw materials is performed by operating the preliminary crushing components, so that the crushed raw materials are placed on the grinding and crushing components;

Step S3: Grinding of raw materials: operating the driving mechanism to drive the grinding and smashing components to operate, so as to further smash and grind the raw materials;

Step S4: Vibration of the raw materials: At the same time, under the action of the speed change component, the raw materials on the inner wall of the processing box vibrate rapidly, and then the ground raw materials can fall into the sieve plate as soon as possible through the grinding and crushing components:

Step S5: Screening of raw materials: using sieve plates to screen the raw materials, so as to obtain raw materials whose specifications meet the design specifications;

Step S6: raw material recovery: the raw materials screened in step S5 are recovered for subsequent processing.

Compared with the prior art, the beneficial effects of the present invention are as follows:

1. In the present invention, through the operation of the rotating part of the motor, the preliminarily chopped raw materials are squeezed and ground by the pulverizing grinding roller and the inner wall of the processing box, so that the raw materials reaching a certain specification can flow into the bottom of the pulverizing and grinding roller from both sides, It can effectively prevent large-sized raw materials from flowing into the bottom, and improve the fineness of grinding and crushing of raw materials.

2. The present invention drives the connecting rod to rotate through the motor. Under the action of the second bevel gear transmission mechanism, the first rotating shaft, the turntable and the slider are driven to rotate. The rotation of the second can drive the percussion ball to carry out continuous variable-speed percussion on a large area of the surface of the processing box, and the percussion ball can reciprocate vertically, which improves the percussion area, which can cover the crushing area. The working area corresponding to the grinding roller, and the rapid tapping helps to improve the blanking and unloading efficiency of raw materials.

3. The present invention can synchronize the reciprocating vertical movement of the ball by hitting the ball, so that the moving block can reciprocate and traverse, and then the left and right inserting plates can perform relative movement and opposite movement, so as to achieve the effect of reciprocating and blanking the raw materials, which can avoid Due to the influence of a large amount of single blanking on the subsequent grinding effect.

4. In the present invention, the clockwise rotation of the slider and the self-weight of the sieve plate can achieve the effect of vibration filtering and screening. The raw materials falling on the sieve plate can be driven up and down to avoid sticking together, which is beneficial to Improve the filtering effect of the sieve plate and improve the service life of the sieve plate.

Description of drawings

Fig. 1 is the front view of the structure of the present invention;

Fig. 2 is the front sectional view of the structure of the present invention;

Fig. 3 is the front view of the transmission block structure of the present invention;

Fig. 4 is the front view of the L-shaped rod, the slider and the incomplete gear structure of the present invention;

Fig. 5 is the front view of the second structure of the gear transmission mechanism of the present invention;

Fig. 6 is the front view sectional view of the strut structure of the present invention;

Figure 7 is a flow chart of the preparation process of the present invention.

In the figure: 1. Processing box; 2. Transmission shell; 3. Transmission block; 4. Guide groove; 5. Slide column; 6. Transmission plate; 7. Sleeve; 11. Grinding protrusion; 12. Motor; 13. Rod; 14. Support block; 15. Bevel gear transmission mechanism one; 16. Connecting rod; 17. Rotating shaft one; 18. Bevel gear transmission mechanism two; Turntable; 20, slider; 21, shaft two; 22, swing plate; 23, chute one; 24, bearing block; 25, chute two; 26, sieve plate; 27, L-shaped rod; 28, chute three ; 29, mounting plate; 30, stirring plate; 31, moving block; 32, moving rod; 33, inserting plate; 34, sliding rod; 35, rack row; 36, preliminary broken parts; 37, incomplete gear.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Referring to FIGS. 1 to 7 , the present embodiment provides an energy-saving preparation device for silicon carbon negative electrode materials for lithium batteries, including a processing box 1 . The interior of the processing box 1 is provided with a preliminary smashing part 36 and a grinding and smashing part. The bottom of 1 is provided with a drive mechanism that drives the grinding and smashing parts to operate, the surface of the processing box 1 is provided with a transmission shell 2, and the inner wall of the transmission shell 2 is provided with two material shaking parts for knocking the surface of the processing box 1. ;

The material shaking part includes a transmission block 3 that is fixedly connected to the inner wall of the transmission shell 2. The surface of the transmission block 3 is provided with a wavy guide groove 4, and the surface of the guide groove 4 is slidably connected with two sliding columns 5. The two sliding columns The surface of 5 is jointly hinged with a transmission plate 6, the surface of the transmission plate 6 is fixedly connected with a sleeve 7, and the surface of the sleeve 7 is fixedly connected with a percussion ball 8. Through the operation of the driving mechanism, under the action of the speed change component, the percussion ball is driven. The ball 8 is operated at a variable speed, and a screen plate 26 is slidably connected to the inner wall of the processing box 1 .

More specifically, when using in this embodiment, the block-shaped raw materials are put into the interior of the processing box 1 from the hopper, and the raw materials can be chopped by the preliminary crushing part 36 to facilitate subsequent grinding and crushing operations, and improve the efficiency of the grinding process. In order to improve the efficiency of raw material processing, the raw material is placed on the surface of the pulverizing and grinding roller 10. Because the specifications of the raw material do not meet the design requirements, the raw material cannot flow out from both sides of the pulverizing and grinding roller 10. The driving mechanism drives the grinding and smashing. The parts break and grind the raw materials, which can effectively prevent the large-sized raw materials from flowing into the bottom, and improve the fineness of the grinding and breaking of the raw materials. The variable-speed operation makes the reciprocating movement of the striking ball 8 to reciprocate and traverse the surface of the processing box 1, which can accelerate the unloading of the raw materials attached to the inner wall of the processing box 1, and facilitate the removal of the raw materials during the grinding process. Cutting, and the knocking range is large, so as to improve the effect of cutting, and the speed of knocking is changing. The grinding area is subjected to accelerated vibrations to avoid clogging.

Further, in the embodiment: the grinding and crushing component includes a grinding and grinding roller 10 , and the grinding protrusions 11 on the surface of the grinding and grinding roller 10 are ground.

More specifically, in this embodiment, the crushing and grinding rollers 10 are rotated to crush and grind the raw materials, so that the preliminarily chopped raw materials are squeezed by the crushing and grinding rollers 10 against the inner wall of the processing box 1 . Grinding, and the grinding efficiency is improved by the cooperation of the grinding protrusions 11, so that the raw materials of a certain size can flow into the bottom of the grinding roller 10 from both sides, which can effectively prevent the large-sized raw materials from flowing into the bottom, and improve the grinding and grinding efficiency of the raw materials. The fineness of the breaking.

Further, in the embodiment: the driving mechanism includes a motor 12 fixedly connected to the inner wall of the processing box 1, the rotating part of the motor 12 is fixedly connected with a rotating rod 13, and the surface of the rotating rod 13 is fixedly connected with the surface of the pulverizing grinding roller 10, The surface of the rotating rod 13 is rotatably connected with a supporting block 14, the surface of the supporting block 14 is fixedly connected with the inner wall of the processing box 1, and the surface of the rotating rod 13 is connected with two connecting rods 16 through a bevel gear transmission mechanism-15. The side surface of the processing box 1 is provided with an opening 1 through which the connecting rod 16 passes through and is rotatably connected with the connecting rod 16 .

More specifically, in this embodiment, through the operation of the rotating part of the motor 12, the rotating rod 13, the pulverizing and grinding roller 10 can be driven, and the connecting rod 16 and the pulverizing and grinding roller 10 can be driven by the bevel gear transmission mechanism-15. The roller 10 is rotated.

Further, in the embodiment: the speed change component includes a rotating shaft 17 and a rotating shaft 2 21 that are rotatably connected to the inner wall of the transmission shell 2, the rotating shaft 1 17 and the connecting rod 16 are connected through a bevel gear transmission mechanism 2 18 transmission connection, the rotating shaft 1 The surface of 17 is fixedly connected with the turntable 19, the surface of the turntable 19 is fixedly connected with the slider 20 for rotation, and the surface of the second rotating shaft 21 is fixedly connected with the swing plate 22, and the surface of the swing plate 22 is provided with a chute 1 for the slider 20 to slide. 23. The surface of the second rotating shaft 21 is provided with a connecting component that is in driving connection with the sleeve 7.

More specifically, in this embodiment, through the rotation of the connecting rod 16 , as shown in FIG. 5 and FIG. 4 , and under the action of the second bevel gear transmission mechanism 18 , the first rotating shaft 17 and the turntable 19 can be driven to rotate. , through the rotation of the turntable 19, the slider 20 will be driven to revolve with the axis one 17 as the center of the circle, due to the sliding fit relationship between the chute one 23 on the swing plate 22 and the slider 20, and the swing center of the swing plate 22 is the axis of rotation Two 21, so when the slider 20 rotates, the swing plate 22 and the second rotating shaft 21 will swing back and forth, and the slider 20 will slide in the chute one 23 while rotating, so the slider 20 is shown in FIG. 4 Starting from the state shown, the distance between the slider 20 and the second rotating shaft 21 is gradually shortening, so the rotational force acting on the first chute 23 changes in displacement along the first sliding slot 23. When the slider 20 is further away from the second rotating shaft 21, In the near future, the rotation speed of the second shaft 21 is faster, so through the rotation of the first shaft 17, the second shaft 21 can be driven to reciprocate the variable speed swing, and the tap ball 8 can be driven to perform a variable speed movement under the action of the connecting component.

Further, in the embodiment: the connecting member includes a sliding rod 34 slidably connected to the inner side of the sleeve 7, the end of the sliding rod 34 is fixedly connected with a rack row 35, and the surface of the second rotating shaft 21 is fixedly connected with an incomplete gear 37, The surface of the rack row 35 is fixedly connected with the bearing block 24 , and the inner wall of the transmission housing 2 is provided with a second chute 25 for the bearing block 24 to slide.

More specifically, in this embodiment, the rotation of the second rotating shaft 21 will drive the incomplete gear 37 to rotate, and through the meshing relationship and the restriction of the displacement direction of the bearing block 24 by the second chute 25, the rack row 35 is made to rotate. Reciprocating vertical movement can be carried out, and under the transmission connection of the sliding rod 34, a vertical force is given to the sleeve 7 as shown in FIG. 7 can carry out lateral movement, when driving the transmission plate 6 to carry out vertical movement, because the two sliding columns 5 and the guide groove 4 are slidingly matched, and the two sliding columns 5 are located in the guide groove 4 at different wavelengths. The leftmost side is shown in Figure 3, so the two spools 5 can move synchronously, the transmission plate 6 can reciprocate vertically through the reciprocating movement of the rack row 35, and because the guide groove 4 is wavy, the two Each sliding column 5 can move synchronously at the same position in different bands of the guide groove 4, so that the transmission plate 6 can reciprocate and laterally move. tap.

Further, in the embodiment: in order to drive the reciprocating vertical movement of the sieve plate 26, the surface of the sieve plate 26 is fixedly connected with an L-shaped rod 27, and the surface of the processing box 1 is provided with a chute three 28 for the sliding of the L-shaped rod 27. The bar 27 is in intermittent contact with the slider 20 .

More specifically, in this embodiment, the clockwise rotation of the slider 20, as shown in FIG. 4, makes the slider 20 press against the L-shaped rod 27, which can drive the L-shaped rod 27 and the sieve plate 26 upward. Move, when the slider 20 is separated from the L-shaped rod 27, it is reset by the weight of the screen plate 26, so that the screen 26 can be moved up and down reciprocatingly, so as to achieve the effect of vibration filtering and screening, and the falling The raw materials on the sieve plate 26 can be driven up and down to avoid sticking together, which is beneficial to improve the filtering effect of the sieve plate 26 and the service life of the sieve plate 26 .

Further, in the embodiment: in order to mix the raw materials, a mounting plate 29 is fixedly connected to the surface of the rotating rod 13 , and a stirring plate 30 is fixedly connected to the surface of the mounting plate 29 .

More specifically, in this embodiment, the rotation of the rotating rod 13 drives the stirring plate 30 to mix the crushed and ground raw materials, because the crushed raw materials need to be mixed when preparing the silicon carbon negative electrode material, There is no need for the user to take out the raw materials and perform operations again. This method can directly mix the raw materials efficiently and has high automation.

Further, in the embodiment: in order to ensure the grinding effect, the surface of the transmission plate 6 is fixedly connected with a moving block 31, and the surface of the moving block 31 is provided with an opening two for the moving rod 32 to pass through and slidingly connected with it. A plug board 33 is slidably connected to the surface of the processing box 1 , and an opening 3 is provided on the side of the processing box 1 for the plug board 33 to pass through and be slidably connected to it.

More specifically, in this embodiment, the reciprocating and traversing movement of the moving block 31 drives the moving rod 32 and the insert plate 33 to reciprocate and traverse. 33 can perform relative movement and opposite movement to achieve the effect of reciprocating blanking of raw materials, which can avoid the influence of a large amount of single blanking on the subsequent grinding effect.

Working principle: When the energy-saving preparation equipment for the lithium battery silicon carbon negative electrode material is used, the block-shaped raw materials are put into the interior of the processing box 1 from the hopper, and the raw materials are chopped by the preliminary crushing part 36, which is convenient for subsequent grinding and crushing operations. , the work efficiency is improved, so that the raw material is on the surface of the pulverizing and grinding roller 10. Since the specification of the raw material does not meet the design requirements, the raw material cannot flow out from both sides of the pulverizing and grinding roller 10.

Through the operation of the rotating part of the motor 12, the rotating rod 13, the pulverizing and grinding roller 10 are driven, and the connecting rod 16 is rotated by the transmission of the bevel gear transmission mechanism 1 15, and then the raw material is crushed by the rotation of the pulverizing and grinding roller 10. Crushing and grinding, so that the preliminarily chopped raw materials are squeezed and ground by the crushing and grinding rollers 10 and the inner wall of the processing box 1, and the grinding efficiency is improved by the grinding protrusions 11, so that the raw materials reaching a certain specification can be crushed by the grinding rollers 10. The two sides of the machine flow into the bottom, which can effectively prevent the large-scale raw materials from flowing into the bottom, and improve the fineness of the grinding and breaking of the raw materials.

Through the rotation of the connecting rod 16, as shown in Figures 5 and 4, under the action of the second bevel gear transmission mechanism 18, the first rotating shaft 17 and the turntable 19 are driven to rotate, and the rotation of the turntable 19 will drive the slider 20 to rotate. The rotating shaft one 17 revolves around the center of the circle. Due to the sliding fit relationship between the sliding groove one 23 on the swing plate 22 and the slider 20, and the center of the swing plate 22 is the rotating shaft two 21, when the slider 20 is rotating, the swing plate 22 and the second rotating shaft 21 will swing back and forth, and the slider 20 will slide in the first chute 23 while revolving, so the slider 20 starts from the state shown in FIG. 4 , the distance between the slider 20 and the second rotating shaft 21 It is gradually shortening, so the rotational force acting on the first chute 23 is changing in displacement. When the slider 20 is closer to the second rotating shaft 21, the rotating speed of the second rotating shaft 21 is faster. Rotation can drive the second rotating shaft 21 to perform reciprocating variable speed swing.

Through the rotation of the second rotating shaft 21, the incomplete gear 37 will be driven to rotate. Through the meshing relationship and the restriction of the displacement direction of the bearing block 24 by the second chute 25, the rack row 35 can be reciprocated vertically. Under the transmission connection of the sliding rod 34, as shown in FIG. 3, a vertical force is given to the sleeve 7. Due to the sliding cooperation between the sleeve 7 and the sliding rod 34, the sleeve 7 can move horizontally. When driving the transmission plate 6 When performing vertical movement, due to the sliding fit relationship between the two sliding columns 5 and the guide groove 4, and the two sliding columns 5 are located on the leftmost side of the different wave bands in the guide groove 4, as shown in Figure 3, the two sliding columns 5 The column 5 can move synchronously, so that the transmission plate 6 can move back and forth through the rack row 35, so that the vertical movement can be carried out. The same positions of different bands are moved synchronously, so that the transmission plate 6 can reciprocate laterally. The transmission plate 6 drives the percussion ball 8 to reciprocate and traverse the surface of the processing box 1, and the transmission plate 6 drives the percussion. The reciprocating vertical movement of the ball 8 can drive the knocking ball 8 to knock on a large area on the surface of the processing box 1 to make it vibrate. Helps to improve the efficiency of raw material unloading and unloading.

As shown in FIG. 4 , when the slider 20 rotates clockwise, through the transmission relationship, the knocking ball 8 moves downward first and then moves upward. This is the first stage. At the same time, it can be seen from the above that the swing speed of the second rotating shaft 21 becomes faster. The speed of the sleeve 7 becomes faster during the first stage, so the speed of the percussion ball 8 also becomes faster. When the slider 20 rotates 180° clockwise, the rotation speed of the second shaft 21 gradually becomes faster and reaches the fastest speed. , the stage is over, and the knocking ball 8 moves downwards and then resets upwards to be in the position shown in FIG. 2 again. The gradually accelerated knocking speed can knock and vibrate the lower part of the working area of the crushing and grinding roller 10. The lower part of the working area of the pulverizing and grinding rollers 10 is in the concentrated area of grinding, which is the vertical area of the pulverizing and grinding rollers 10 in FIG. Therefore, it is helpful to accelerate the unloading of raw materials by fast tapping; when the slider 20 rotates 180° clockwise and starts to rotate clockwise for a circle, the tapping ball 8 is moved from the position shown in FIG. 2 . Begin to move up and then reset to the second stage, and the tapping speed at this time gradually changes from the fastest to the slowest. The irregular shaking frequency after tapping helps to improve the blanking efficiency of raw materials. When the ball 8 starts to move, the knocking speed at this time is still fast, and the fast knocking is more conducive to passing through the inner wall of the processing box 1 in the working area above the crushing and grinding roller 10. The raw materials are unloaded. During the grinding and smashing work, the raw materials are prone to stick to the inner wall of the processing box 1. If they are not treated, the amount of the ground raw materials obtained will be reduced by a part, which is not conducive to the follow-up. Mixing treatment also affects the service life of the processing box 1. This waterproof can perform vibration unloading of the raw materials on the inner wall of the processing box 1, and the range of unloading is large, and the speed of the knocking changes, so the impact of the knocking The vibration can effectively penetrate the inner wall of the processing box 1 to vibrate the raw materials, thereby improving the work efficiency.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (9)

1. The utility model provides an energy-conserving preparation equipment of lithium cell silicon carbon anode material, includes processing case (1), its characterized in that: the inside of processing case (1) is provided with tentatively smashes part (36) and smashes the part with the grinding, the surface of processing case (1) is provided with driving case (2), it is right to be provided with two on the inner wall of driving case (2) the surface of processing case (1) is strikeed trembles the material part.

2. The energy-saving preparation equipment for the silicon-carbon negative electrode material of the lithium battery as claimed in claim 1, which is characterized in that: the bottom of the processing box (1) is provided with a driving mechanism for driving the grinding and smashing component to operate.

3. The energy-saving preparation equipment for the silicon-carbon negative electrode material of the lithium battery as claimed in claim 2, characterized in that: the material shaking component comprises a transmission block (3) fixedly connected to the inner wall of the transmission shell (2), and a wavy guide groove (4) is formed in the surface of the transmission block (3).

4. The energy-saving preparation equipment for the silicon-carbon negative electrode material of the lithium battery as claimed in claim 3, characterized in that:

the surface of the guide groove (4) is connected with two sliding columns (5) in a sliding manner, the surfaces of the two sliding columns (5) are hinged with a transmission plate (6) together, the surface of the transmission plate (6) is fixedly connected with a sleeve (7), the surface of the sleeve (7) is fixedly connected with a knocking ball (8), the knocking ball (8) is driven to operate in a speed change manner under the action of a speed change component through the operation of the driving mechanism, and the inner wall of the processing box (1) is connected with a sieve plate (26) in a sliding manner;

the grinding and smashing component comprises a grinding and grinding roller (10), and the surface of the grinding and grinding roller (10) is provided with grinding protrusions (11);

the driving mechanism comprises a motor (12) fixedly connected to the inner wall of the processing box (1), a rotating part of the motor (12) is fixedly connected with a rotating rod (13), the surface of the rotating rod (13) is fixedly connected with the surface of the grinding roller (10), the surface of the rotating rod (13) is fixedly connected with a supporting block (14) in a fixed-axis rotating mode, the surface of the supporting block (14) is fixedly connected with the inner wall of the processing box (1), the surface of the rotating rod (13) is connected with two connecting rods (16) in a transmission mode through a first conical gear transmission mechanism (15), and a first opening for the connecting rods (16) to penetrate out and is rotatably connected with the fixed-axis of the processing box (1) is formed in the side face of the processing box (1);

the speed changing component comprises a first rotating shaft (17) and a second rotating shaft (21) which are connected to the inner wall of the transmission shell (2) in a rotating mode through a fixed shaft, the first rotating shaft (17) is in transmission connection with the connecting rod (16) through a second bevel gear transmission mechanism (18), a rotating disc (19) is fixedly connected to the surface of the first rotating shaft (17), a sliding block (20) is rotatably connected to the surface of the rotating disc (19) through the fixed shaft, a swinging plate (22) is fixedly connected to the surface of the second rotating shaft (21), a first sliding groove (23) for the sliding block (20) to slide is formed in the surface of the swinging plate (22), and a connecting component in transmission connection with the sleeve (7) is arranged on the surface of the second rotating shaft (21);

the connecting part comprises a sliding rod (34) which is connected to the inner side of the sleeve (7) in a sliding manner, and a rack row (35) is fixedly connected to the end part of the sliding rod (34);

when the slide block (20) rotates clockwise, the knocking ball (8) moves downwards and then moves upwards through the transmission relation, namely, the first stage drives the knocking speed of the knocking ball (8) to be increased;

when the sliding block (20) rotates 180 degrees clockwise, the rotating speed of the rotating shaft II (21) gradually increases and then reaches the fastest speed, the first stage is finished, the knocking ball (8) moves downwards and then resets upwards, the knocking speed which is gradually increased can knock and vibrate the lower part of the working area of the grinding roller (10), and the lower part of the working area of the grinding roller (10) is in a grinding concentrated area, so that the unloading of raw materials is accelerated;

when the slide block (20) starts to rotate clockwise by 180 degrees and moves to rotate clockwise by one circle, so that the knocking ball (8) begins to move upwards and then reset downwards to be a stage two, the knocking speed is gradually changed from the fastest to the slowest, the irregular shaking frequency after knocking is favorable for improving the blanking efficiency of the raw materials, the knocking speed is still higher when the knocking ball (8) starts to move, the knocking is quicker, the knocking is more favorable for being transmitted into the processing box (1) through the inner wall of the working area above the crushing and grinding roller (10), the raw materials attached to the inner wall of the processing box (1) are unloaded, the raw materials on the inner wall of the processing box (1) are unloaded in a vibrating way, the unloading range is large, the knocking speed is changed, therefore, the knocking vibration can effectively penetrate through the inner wall of the processing box (1) to vibrate the raw materials.

5. The energy-saving preparation equipment for the silicon-carbon negative electrode material of the lithium battery as claimed in claim 4, characterized in that: the surface fixed connection of pivot two (21) has incomplete gear (37), the surface fixed connection of rack row (35) has bearing block (24), the inner wall of transmission case (2) is seted up and is supplied bearing block (24) gliding spout two (25).

6. The energy-saving preparation equipment for the silicon-carbon negative electrode material of the lithium battery as claimed in claim 4, characterized in that: the fixed surface of sieve (26) is connected with L type pole (27), the confession has been seted up on the surface of processing case (1) the gliding spout three (28) of L type pole (27), L type pole (27) with slider (20) intermittent type nature butt.

7. The energy-saving preparation equipment for the silicon-carbon negative electrode material of the lithium battery as claimed in claim 4, characterized in that: the surface fixed connection of bull stick (13) has mounting panel (29), the surface fixed connection of mounting panel (29) has stirring board (30).

8. The energy-saving preparation equipment for the silicon-carbon negative electrode material of the lithium battery as claimed in claim 4, characterized in that: the fixed surface of driving plate (6) is connected with movable block (31), supply movable rod (32) to pass and sliding connection's opening two with it is seted up on the surface of movable block (31), the sliding connection in surface of movable rod (32) has picture peg (33), the confession has been seted up to the side of processing case (1) picture peg (33) penetrate and sliding connection's opening three with it.

9. The preparation process of the energy-saving preparation equipment for the silicon-carbon negative electrode material of the lithium battery as claimed in claim 3, is characterized by comprising the following steps of:

feeding raw materials: feeding raw materials into a processing box (1) from a hopper;

smashing raw materials: operating a primary crushing component (36) to primarily crush the raw materials, so that the crushed raw materials are positioned on the grinding crushing component;

grinding raw materials: operating the driving mechanism to drive the grinding and crushing component to operate so as to further crush and grind the raw materials;

vibration of raw materials: meanwhile, under the action of the speed change component, the raw materials on the inner wall of the processing box (1) are quickly vibrated, and the ground raw materials can fall onto the sieve plate (26) as soon as possible through the grinding and smashing component;

screening raw materials: screening the raw materials by using a screen plate (26) to achieve the raw materials with specifications meeting the design specifications;

raw material recovery: the raw material sieved in step S5 is recovered for subsequent processing.

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