A petroleum coke pulverizing device for preparing negative electrode materials for power lithium batteries

Abstract

This invention relates to a petroleum coke pulverizing apparatus, and more particularly to a petroleum coke pulverizing apparatus for preparing anode materials for power lithium batteries. The invention provides a petroleum coke pulverizing apparatus for preparing anode materials for power lithium batteries capable of sieving crushed petroleum coke powder. This apparatus includes a support frame, a crushing frame, a first cover plate, and crushing rollers. The crushing frame is fixedly mounted on the upper part of the support frame, and the first cover plate is rotatably mounted on the upper part of the crushing frame. Crushing rollers capable of pulverizing petroleum coke powder are symmetrically rotatably mounted on the crushing frame. Through the continuous up-and-down sliding action of the sieve plate, the pulverized petroleum coke powder can be sieved, improving its quality. The powder is then dried by a dryer, where baffles prevent the powder from being pulverized, thus achieving a better drying effect.

Description

Technical Field

[0001] This invention relates to a petroleum coke pulverizing apparatus, and more particularly to a petroleum coke pulverizing apparatus for preparing negative electrode materials for power lithium batteries. Background Technology

[0002] As the application of petroleum coke powder as fuel becomes increasingly widespread in the market, it is required for the negative electrode material of lithium batteries. Petroleum coke pulverization is a process that involves crushing, drying, and high-intensity grinding to produce petroleum coke powder of a certain specification, meeting the requirements of glass kilns and coal-water slurry kilns for fuel with high calorific value, low impurities, and low sulfur combustion characteristics.

[0003] Patent publication number CN112916105A discloses a petroleum coke crushing device. This device includes a cutting assembly located below the outlet of a coking tower for crushing crude petroleum coke, a first crushing assembly located below the cutting assembly, and a feeding unit for conveying the petroleum coke. A crushing unit is located above the feeding unit. In the conveying direction of the feeding unit, the feeding unit and the crushing unit interact to crush the petroleum coke. In operation, crude petroleum coke is first poured from the coking tower into the cutting assembly, which performs the first crushing, breaking the crude petroleum coke into fine petroleum coke. The fine petroleum coke then falls into the first crushing assembly for a second crushing. The fine petroleum coke first enters the feeding unit. During the forward conveying of the fine petroleum coke by the feeding unit, the crushing unit above the feeding unit interacts with the feeding unit, causing the fine petroleum coke to be crushed simultaneously during transport until it becomes small petroleum coke particles. However, this device lacks the function of screening the crushed petroleum coke powder. Larger petroleum coke particles can negatively impact the preparation process of lithium-ion battery anode materials.

[0004] Therefore, there is a need to design a petroleum coke pulverizing device for preparing power lithium battery anode materials that can screen crushed petroleum coke powder. Summary of the Invention

[0005] In order to overcome the shortcomings of existing crushing devices that do not have the function of screening crushed petroleum coke powder, and the fact that large-particle petroleum coke powder can affect the preparation process of lithium battery anode materials, the technical problem of the present invention is to provide a petroleum coke pulverizing device for preparing power lithium battery anode materials that can screen crushed petroleum coke powder.

[0006] A petroleum coke pulverizing apparatus for preparing negative electrode materials for power lithium batteries includes a support frame, a crushing frame, a first cover plate, crushing rollers, a first motor, a flat belt, a dryer, a shell, a second cover plate, a push rod, a second motor, grinding blocks, a screening mechanism, and a material blocking mechanism. A crushing frame is fixedly mounted on the upper part of the support frame, and the first cover plate is rotatably mounted on the upper part of the crushing frame. Crushing rollers capable of crushing petroleum coke powder are symmetrically rotatably mounted on the crushing frame. The first motor is fixedly mounted at the rear of the crushing frame, and the output shaft of the first motor is connected to the rear end of the left crushing roller via a coupling. A flat belt is wound around the front ends of the two crushing rollers via pulleys. The middle part of the support frame... A dryer is fixedly installed to dry petroleum coke powder. A shell is fixedly installed at the bottom of the dryer and is connected to the dryer. A second cover plate is rotatably installed at the bottom of the shell. A rod is slidably installed on the left side of the second cover plate. The rod is inserted into the left side of the shell to limit the second cover plate. A second motor is fixedly installed at the bottom of the second cover plate. The output shaft of the second motor passes through the second cover plate. A grinding block for grinding petroleum coke powder is fixedly installed on the output shaft of the second motor. A screening mechanism for screening the crushed petroleum coke powder is installed at the top of the dryer. A baffle mechanism for blocking the petroleum coke powder is installed at the bottom of the dryer.

[0007] Furthermore, the screening mechanism includes a fixed plate, guide rods, a sieve plate, and a first elastic element. Fixed plates are fixedly installed on both the front and rear sides of the dryer. Guide rods are symmetrically fixedly installed on the fixed plates. A sieve plate capable of screening the crushed petroleum coke powder is slidably installed between the four guide rods. A first elastic element is symmetrically connected between the bottom of the sieve plate and the top of the two fixed plates. The first elastic element is sleeved on the guide rod.

[0008] Furthermore, the material blocking mechanism includes a first guide sleeve, a fixed rod, a baffle, and a second elastic element. The first guide sleeve is symmetrically fixedly installed on the right side of the dryer, and a fixed rod is fixedly installed on the first guide sleeve. A baffle capable of blocking petroleum coke powder is slidably installed between the left ends of the fixed rod. The baffle is slidably connected to the dryer. A second elastic element is connected between the right side of the baffle and the left side of the two first guide sleeves. The second elastic element is sleeved on the fixed rod.

[0009] Furthermore, it also includes a pressing mechanism that enables the screen plate to slide automatically up and down. The pressing mechanism includes a contact rod and a contact plate. The front end of the crushing roller on the right and the output shaft of the first motor are both fixedly equipped with contact rods. Contact plates are fixedly equipped on both the front and rear sides of the screen plate. The contact rod rotates to press the contact plate to move downward.

[0010] Furthermore, it also includes a pushing mechanism that can squeeze the baffle to slide outward. The pushing mechanism includes a first contact block, a second guide sleeve, a pushing rod, and a rotating plate. The first contact block is symmetrically fixedly arranged on the upper right side of the baffle. The second guide sleeve is fixedly arranged on the right side of the crushing frame. The pushing rod is symmetrically slidably arranged on the second guide sleeve. The pushing rod slides downward to squeeze the first contact block to move to the right. The rotating plate is symmetrically fixedly arranged on the right side of the first cover plate. The first cover plate rotates upward to drive the rotating plate to rotate to the lower right to squeeze the pushing rod to slide downward.

[0011] Furthermore, it also includes a striking mechanism that can strike the shell to prevent petroleum coke powder from adhering. The striking mechanism includes a guide rod, a striking block, and a third elastic element. Guide rods are symmetrically fixed on both sides of the shell. A striking block that can strike the shell to prevent petroleum coke powder from adhering is slidably arranged between two adjacent guide rods. A third elastic element is connected between the outer side of the striking block and the adjacent guide rod. The third elastic element is sleeved on the guide rod.

[0012] Furthermore, it also includes an automatic pressing mechanism for the striking block. The pressing mechanism includes a second contact block and a lever. The second contact block is fixedly installed inside the striking block and is slidably connected to the housing. Levers are symmetrically fixedly installed on the upper part of the output shaft of the second motor. The levers rotate to press the second contact block to slide outward.

[0013] Furthermore, it also includes a collection mechanism for collecting large particles of petroleum coke powder. The collection mechanism includes connecting rods, a fixed frame, a collection frame, and a handle. Connecting rods are fixedly installed on both the front and rear sides of the left side of the crushing frame. A fixed frame is fixedly installed between the two connecting rods. A collection frame for collecting large particles of petroleum coke powder is slidably installed inside the fixed frame. A handle is fixedly installed on the left side of the collection frame.

[0014] As can be seen from the above description of the structure of the present invention, the design starting point, concept and advantages of the present invention are: 1. Under the action of the continuous up and down sliding of the sieve plate, the crushed petroleum coke powder can be screened to improve the quality of the petroleum coke powder. Then, the petroleum coke powder is dried by the operation of the dryer. Under the action of the baffle, the petroleum coke powder can be blocked, thereby achieving a better drying effect.

[0015] 2. Under the action of the continuous rotation of the contact rod and the squeezing of the contact plate, the screen plate automatically slides up and down to screen the petroleum coke powder.

[0016] 3. The push rod slides down to press the first contact block and moves the baffle to the right, opening the lower part of the dryer. This allows the dried petroleum coke powder to fall into the shell for grinding while the material is being crushed, making it easier for operators to carry out the operation.

[0017] 4. By continuously sliding the striking block inward and outward to strike the outer wall of the shell, excessive petroleum coke powder can be avoided adhering to the inner wall of the shell during the grinding process.

[0018] 5. By rotating the lever and continuously pressing the striking block, the striking block can slide automatically in and out, eliminating the need for manual pulling.

[0019] 6. The collection frame can collect larger petroleum coke powder particles, making it easier for workers to pour the larger petroleum coke powder particles back into the crushing frame for secondary crushing. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0021] Figure 2 This is a schematic diagram of the first partial three-dimensional structure of the present invention.

[0022] Figure 3 This is a schematic diagram of the second partial three-dimensional structure of the present invention.

[0023] Figure 4 This is a schematic diagram of the third part of the three-dimensional structure of the present invention.

[0024] Figure 5 This is a schematic diagram of a partial cross-sectional structure of the first embodiment of the present invention.

[0025] Figure 6 This is a schematic diagram of a second partial cross-sectional structure of the present invention.

[0026] Figure 7 This is a three-dimensional structural diagram of the screening mechanism of the present invention.

[0027] Figure 8 This is a three-dimensional structural diagram of the material blocking mechanism of the present invention.

[0028] Figure 9 This is a cross-sectional view of the material-blocking mechanism of the present invention.

[0029] Figure 10 This is a schematic diagram of the first partial three-dimensional structure of the extrusion mechanism of the present invention.

[0030] Figure 11 This is a schematic diagram of the second part of the extrusion mechanism of the present invention.

[0031] Figure 12 This is a three-dimensional structural diagram of the actuating mechanism of the present invention.

[0032] Figure 13 This is a three-dimensional structural diagram of the striking mechanism of the present invention.

[0033] Figure 14This is a three-dimensional structural diagram of part A of the present invention.

[0034] Figure 15 This is a cross-sectional structural schematic diagram of the actuating mechanism of the present invention.

[0035] Figure 16 This is a three-dimensional structural diagram of the collecting mechanism of the present invention.

[0036] The meanings of the reference numerals in the figure are as follows: 1: Support frame, 2: Crushing frame, 3: First cover plate, 4: Crushing roller, 5: First motor, 6: Flat belt, 7: Dryer, 8: Shell, 9: Second cover plate, 10: Insert rod, 11: Second motor, 12: Grinding block, 13: Screening mechanism, 1301: Fixed plate, 1302: Guide rod, 1303: Screen plate, 1304: First elastic element, 14: Material blocking mechanism, 1401: First guide sleeve, 1402: Fixed rod, 1403: Baffle, 1404: Second elastic element, 1 5: Extrusion mechanism; 1501: Contact rod; 1502: Contact plate; 16: Pushing mechanism; 1601: First contact block; 1602: Second guide sleeve; 1603: Push rod; 1604: Rotating plate; 17: Striking mechanism; 1701: Guide rod; 1702: Striking block; 1703: Third elastic element; 18: Actuating mechanism; 1801: Second contact block; 1802: Actuating lever; 19: Collecting mechanism; 1901: Connecting rod; 1902: Fixing frame; 1903: Collecting frame; 1904: Handle. Detailed Implementation

[0037] References to embodiments herein mean that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments. Example

[0038] Please see Figures 1-9A petroleum coke pulverizing device for preparing negative electrode materials for power lithium batteries includes a support frame 1, a crushing frame 2, a first cover plate 3, a crushing roller 4, a first motor 5, a flat belt 6, a dryer 7, a shell 8, a second cover plate 9, an insert rod 10, a second motor 11, a grinding block 12, a screening mechanism 13, and a material blocking mechanism 14. The crushing frame 2 is fixedly mounted on the upper part of the support frame 1. The first cover plate 3 is rotatably mounted on the upper part of the crushing frame 2. The crushing rollers 4 are symmetrically rotatably mounted on the left and right sides of the crushing frame 2. The crushing rollers 4 can crush petroleum coke powder. The first motor 5 is fixedly mounted at the rear of the crushing frame 2. The output shaft of the first motor 5 is connected to the rear end of the left crushing roller 4 via a coupling. The front ends of the two crushing rollers 4 are connected by a flat belt 6 via pulleys. A dryer 7 is fixedly mounted in the middle of the support frame 1. Dryer 7 is used to dry petroleum coke powder. A shell 8 is welded to the bottom of dryer 7 and communicates with dryer 7. A second cover plate 9 is rotatably installed at the bottom of shell 8. A rod 10 is slidably installed on the left side of second cover plate 9. The rod 10 is inserted into the left side of shell 8 to limit the second cover plate 9. A second motor 11 is fixedly installed at the bottom of second cover plate 9. The output shaft of second motor 11 passes through second cover plate 9. A grinding block 12 is fixedly installed on the output shaft of second motor 11. The grinding block 12 can grind petroleum coke powder. A screening mechanism 13 is installed at the top of dryer 7. The screening mechanism 13 can screen the crushed petroleum coke powder. A material blocking mechanism 14 is installed at the bottom of dryer 7. The material blocking mechanism 14 can block petroleum coke powder.

[0039] Please see Figure 7 The screening mechanism 13 includes a fixed plate 1301, guide rods 1302, a sieve plate 1303, and a first elastic element 1304. Fixed plates 1301 are welded to both the front and rear sides of the dryer 7. Guide rods 1302 are symmetrically fixed on the fixed plates 1301. The sieve plate 1303 is slidably arranged between the four guide rods 1302. The sieve plate 1303 can screen the crushed petroleum coke powder. The bottom of the sieve plate 1303 and the top of the two fixed plates 1301 are symmetrically connected to the first elastic element 1304. The first elastic element 1304 is sleeved on the guide rods 1302.

[0040] Please see Figures 8-9 The material blocking mechanism 14 includes a first guide sleeve 1401, a fixed rod 1402, a baffle 1403, and a second elastic element 1404. The first guide sleeve 1401 is symmetrically welded to the front and back of the right side of the dryer 7. The fixed rod 1402 is fixedly installed on the first guide sleeve 1401. The baffle 1403 is slidably installed between the left ends of the fixed rod 1402. The baffle 1403 can block the petroleum coke powder. The baffle 1403 is slidably connected to the dryer 7. The second elastic element 1404 is connected between the right side of the baffle 1403 and the left side of the two first guide sleeves 1401. The second elastic element 1404 is sleeved on the fixed rod 1402.

[0041] When it is necessary to process petroleum coke powder into powder, the worker pulls the first cover plate 3 upward to open the crushing frame 2. Then, the worker pours a certain amount of petroleum coke powder into the crushing frame 2. After pouring, the worker pushes the first cover plate 3 downward to close the crushing frame 2. After closing, the worker starts the first motor 5. The output shaft of the first motor 5 rotates, driving the left crushing roller 4 to rotate. The rotation of the left crushing roller 4 drives the flat belt 6 to rotate via the left pulley. The rotation of the flat belt 6 drives the right crushing roller 4 to rotate via the right pulley. The rotation of the two crushing rollers 4 crushes the petroleum coke powder, and the crushed petroleum coke powder then falls through the crushing frame 2 into the crushing chamber. On the sieve plate 1303, the worker presses the sieve plate 1303 down and slides it, compressing the first elastic element 1304. The worker then releases the sieve plate 1303, causing the first elastic element 1304 to reset and slide the sieve plate 1303 upwards. This process is repeated, and the sieve plate 1303 continuously slides up and down, screening the pulverized petroleum coke powder. The finer particles fall into the dryer 7, while the larger particles are shaken out from the left side of the sieve plate 1303. The worker collects these particles in a container and then pours them back into the crushing frame 2 for further crushing. After the petroleum coke powder screening is complete, the worker turns on the dryer 7. The dryer 7 dries petroleum coke powder. The baffle 1403 blocks the powder, achieving a better drying effect. After drying, the operator pulls the baffle 1403 to the right, compressing the second elastic element 1404. This opening of the baffle 1403 allows the dried petroleum coke powder to fall into the housing 8. Once completely fallen, the operator releases the baffle 1403, causing the second elastic element 1404 to reset and slide the baffle 1403 to the left, blocking the lower part of the dryer 7. At this point, the operator starts the second motor 11, whose output shaft rotates, driving the grinding blocks 12. The grinding block 12 rotates to grind the dried petroleum coke powder. After the petroleum coke powder is ground, the operator turns off the second motor 11 and then places the collection container directly under the shell 8. After it is placed, the operator pulls out the insert rod 10, and the second cover plate 9 rotates downward under the action of gravity to open the shell 8. The ground petroleum coke powder inside the shell 8 falls into the collection container for collection. After all the petroleum coke powder has fallen, the operator pushes the second cover plate 9 upward to close the shell 8. After closing, the operator inserts the insert rod 10 back into its original position to limit the second cover plate 9. After use, the operator turns off the first motor 5 and the dryer 7. Example

[0042] Please see Figure 1 , Figure 10 and Figure 11Based on embodiment 1, it also includes a pressing mechanism 15. The pressing mechanism 15 can realize the automatic up and down sliding of the sieve plate 1303. The pressing mechanism 15 includes a contact rod 1501 and a contact plate 1502. The front end of the crushing roller 4 on the right side and the output shaft of the first motor 5 are both welded with contact rods 1501. Contact plates 1502 are fixedly arranged on both the front and rear sides of the sieve plate 1303. The contact rod 1501 rotates to press the contact plate 1502 to move downward.

[0043] The rotation of the output shaft of the first motor 5 and the rotation of the crushing roller 4 on the right drive the contact rod 1501 to rotate. The rotation of the contact rod 1501 squeezes the contact plate 1502 downward, causing the screen plate 1303 to slide downward. When the rotation of the contact rod 1501 stops squeezing the contact plate 1502, the screen plate 1303 slides upward and resets. Under the action of the continuous rotation of the contact rod 1501 squeezing the contact plate 1502, the screen plate 1303 automatically slides up and down to screen the petroleum coke powder.

[0044] Please see Figure 2 and Figure 12 It also includes a pushing mechanism 16, which can squeeze the baffle 1403 to slide outward. The pushing mechanism 16 includes a first contact block 1601, a second guide sleeve 1602, a pushing rod 1603 and a rotating plate 1604. The first contact block 1601 is symmetrically welded to the upper right part of the baffle 1403. The second guide sleeve 1602 is fixedly installed on the right side of the crushing frame 2. The pushing rod 1603 is symmetrically slidably installed on the second guide sleeve 1602. The pushing rod 1603 slides downward to squeeze the first contact block 1601 to move to the right. The rotating plate 1604 is symmetrically fixedly installed on the right side of the first cover plate 3. The first cover plate 3 rotates upward to drive the rotating plate 1604 to rotate to the lower right to squeeze the pushing rod 1603 to slide downward.

[0045] The first cover plate 3 rotates upward, causing the rotating plate 1604 to rotate downward to the right. The rotating plate 1604 rotates downward to the right, squeezing the pushing rod 1603 to slide downward. The pushing rod 1603 slides downward, squeezing the first contact block 1601 to move to the right. The first contact block 1601 moves to the right, causing the baffle 1403 to slide to the right, opening the lower part of the dryer 7. This allows the dried petroleum coke powder to fall into the shell 8 for grinding while the material is being crushed, making it easier for the operator to carry out the operation. When the first cover plate 3 rotates downward, causing the rotating plate 1604 to rotate upward and no longer squeezing the pushing rod 1603, the baffle 1403 slides to the left to reset, causing the first contact block 1601 to move to the right to reset, squeezing the pushing rod 1603 to slide upward to reset.

[0046] Please see Figure 1 , Figure 13 and Figure 14It also includes a striking mechanism 17, which can strike the housing 8 to prevent petroleum coke powder from adhering. The striking mechanism 17 includes a guide rod 1701, a striking block 1702 and a third elastic element 1703. The guide rods 1701 are symmetrically fixed on both sides of the housing 8. The striking block 1702 is slidably arranged between two adjacent guide rods 1701. The striking block 1702 can strike the housing 8 to prevent petroleum coke powder from adhering. The third elastic element 1703 is connected between the outer side of the striking block 1702 and the adjacent guide rod 1701. The third elastic element 1703 is sleeved on the guide rod 1701.

[0047] After the petroleum coke powder is ground, the worker pulls the striking block 1702 outward, compressing the third elastic element 1703. Then the worker releases the striking block 1702, and the third elastic element 1703 resets, causing the striking block 1702 to slide inward and reset to strike the housing 8. This process is repeated. By continuously sliding the striking block 1702 inward and outward to strike the outer wall of the housing 8, a large amount of petroleum coke powder can be avoided from adhering to the inner wall of the housing 8 during the grinding process.

[0048] Please see Figure 15 It also includes a toggle mechanism 18, which automatically squeezes the striking block 1702. The toggle mechanism 18 includes a second contact block 1801 and a lever 1802. The second contact block 1801 is welded to the inner side of the striking block 1702. The second contact block 1801 is slidably connected to the housing 8. The lever 1802 is symmetrically fixed on the upper part of the output shaft of the second motor 11. The lever 1802 rotates and squeezes the second contact block 1801 to slide outward.

[0049] The rotation of the second motor 11 drives the lever 1802 to rotate. The rotation of the lever 1802 presses the second contact block 1801, causing the striking block 1702 to slide outward. The third elastic element 1703 is compressed accordingly. When the rotation of the second motor 11 drives the lever 1802 to rotate and no longer presses the second contact block 1801, the third elastic element 1703 resets and causes the striking block 1702 to slide inward and reset to strike the housing 8. By continuously pressing the striking block 1702 with the rotation of the lever 1802, the striking block 1702 can slide automatically inward and outward, eliminating the need for manual pulling.

[0050] Please see Figure 1 and Figure 16It also includes a collection mechanism 19, which facilitates the collection of large particles of petroleum coke powder. The collection mechanism 19 includes a connecting rod 1901, a fixed frame 1902, a collection frame 1903, and a handle 1904. The front and rear sides of the left side of the crushing frame 2 are welded with connecting rods 1901. A fixed frame 1902 is fixedly installed between the two connecting rods 1901. A collection frame 1903 is slidably installed inside the fixed frame 1902. The collection frame 1903 facilitates the collection of large particles of petroleum coke powder. A handle 1904 is fixedly installed on the left side of the collection frame 1903.

[0051] Under the continuous up-and-down sliding action of the sieve plate 1303, the crushed petroleum coke powder can be screened. The finer petroleum coke powder particles fall into the dryer 7, while the larger petroleum coke powder particles are shaken out from the left side of the sieve plate 1303 and fall into the collection frame 1903 for collection. When the collection frame 1903 has collected a certain amount of petroleum coke powder, the operator pulls the handle 1904 to slide the collection frame 1903 outward and remove it. Then, the operator pours the petroleum coke powder inside the collection frame 1903 into the crushing frame 2 for secondary crushing. After pouring, the operator holds the handle 1904 and places the collection frame 1903 on the left side of the fixed frame 1902. Then, the operator pushes the handle 1904 to slide the collection frame 1903 to the right to reset it.

[0052] It should be understood that this embodiment is for illustrative purposes only and is not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. A petroleum coke pulverizing device for preparing negative electrode materials for power lithium batteries, comprising a support frame (1), a crushing frame (2), a first cover plate (3), a crushing roller (4), a first motor (5), a flat belt (6), a dryer (7), a shell (8), a second cover plate (9), an insert rod (10), a second motor (11), and a grinding block (12). The support frame (1) is fixedly mounted on the upper part of the crushing frame (2), and the first cover plate (3) is rotatably mounted on the upper part of the crushing frame (2). The crushing roller (4) capable of crushing petroleum coke powder is symmetrically rotatably mounted on the left and right sides of the crushing frame (2). The first motor (5) is fixedly mounted on the rear part of the crushing frame (2). The output shaft of the first motor (5) is connected to the rear end of the left crushing roller (4) through a coupling. A flat belt (6) is wound around the front end of the crushing roller (4) via a pulley. A dryer (7) capable of drying petroleum coke powder is fixedly installed in the middle of the support frame (1). A shell (8) is fixedly installed at the bottom of the dryer (7). The shell (8) is connected to the dryer (7). A second cover plate (9) is rotatably installed at the bottom of the shell (8). A rod (10) is slidably installed on the left side of the second cover plate (9). The rod (10) is inserted into the left side of the shell (8) to limit the second cover plate (9). A second motor (11) is fixedly installed at the bottom of the second cover plate (9). The output shaft of the second motor (11) passes through the second cover plate (9). A grinding block (12) capable of grinding petroleum coke powder is fixedly installed on the output shaft of the second motor (11). Its characteristic is that... It also includes a screening mechanism (13) and a material blocking mechanism (14). The upper part of the dryer (7) is equipped with a screening mechanism (13) that can screen the crushed petroleum coke powder, and the lower part of the dryer (7) is equipped with a material blocking mechanism (14) that can block the petroleum coke powder. The screening mechanism (13) includes a fixed plate (1301), a guide rod (1302), a sieve plate (1303), and a first elastic element (1304). The dryer (7) is fixedly installed on both the front and rear sides with fixed plates (1301). Guide rods (1302) are symmetrically fixed on the fixed plates (1301). A sieve plate (1303) capable of screening the crushed petroleum coke powder is slidably installed between the four guide rods (1302). The bottom of the sieve plate (1303) and the top of the two fixed plates (1301) are symmetrically connected with the first elastic element (1304). The first elastic element (1304) is sleeved on the guide rod (1302). The material blocking mechanism (14) includes a first guide sleeve (1401), a fixed rod (1402), a baffle (1403), and a second elastic element (1404). The first guide sleeve (1401) is symmetrically fixed on the right side of the dryer (7). The fixed rod (1402) is fixed on the first guide sleeve (1401). The baffle (1403) that can block petroleum coke powder is slidably arranged between the left ends of the fixed rod (1402). The baffle (1403) is slidably connected to the dryer (7). The second elastic element (1404) is connected between the right side of the baffle (1403) and the left side of the two first guide sleeves (1401). The second elastic element (1404) is sleeved on the fixed rod (1402). It also includes a pressing mechanism (15) that enables the screen plate (1303) to slide up and down automatically. The pressing mechanism (15) includes a contact rod (1501) and a contact plate (1502). The front end of the crushing roller (4) on the right side and the output shaft of the first motor (5) are both fixedly provided with contact rods (1501). The screen plate (1303) is fixedly provided with contact plates (1502) on both the front and rear sides. The contact rod (1501) rotates and presses the contact plate (1502) to move downward. It also includes a pushing mechanism (16) that can squeeze the baffle (1403) to slide outward. The pushing mechanism (16) includes a first contact block (1601), a second guide sleeve (1602), a pushing rod (1603) and a rotating plate (1604). The baffle (1403) is symmetrically fixedly provided with the first contact block (1601) on the upper right side. The crushing frame (2) is fixedly provided with the second guide sleeve (1602). The second guide sleeve (1602) is symmetrically slidably provided with the pushing rod (1603) on the second guide sleeve (1602). The pushing rod (1603) slides down and squeezes the first contact block (1601) to move to the right. The first cover plate (3) is symmetrically fixedly provided with the rotating plate (1604) on the right side. The first cover plate (3) rotates upward and drives the rotating plate (1604) to rotate to the lower right and squeeze the pushing rod (1603) to slide downward.

2. The petroleum coke pulverizing apparatus for preparing negative electrode materials for power lithium batteries as described in claim 1, characterized in that, It also includes a striking mechanism (17) that can strike the shell (8) to prevent petroleum coke powder from adhering. The striking mechanism (17) includes a guide rod (1701), a striking block (1702) and a third elastic element (1703). The guide rod (1701) is symmetrically fixed on both the left and right sides of the shell (8). A striking block (1702) that can strike the shell (8) to prevent petroleum coke powder from adhering is slidably arranged between two adjacent guide rods (1701). A third elastic element (1703) is connected between the outer side of the striking block (1702) and the adjacent guide rod (1701). The third elastic element (1703) is sleeved on the guide rod (1701).

3. The petroleum coke pulverizing apparatus for preparing negative electrode materials for power lithium batteries as described in claim 2, characterized in that, It also includes a toggle mechanism (18) with an automatic pressing and striking block (1702). The toggle mechanism (18) includes a second contact block (1801) and a lever (1802). The second contact block (1801) is fixedly installed on the inner side of the striking block (1702). The second contact block (1801) is slidably connected to the housing (8). The lever (1802) is symmetrically fixedly installed on the upper part of the output shaft of the second motor (11). The lever (1802) rotates and presses the second contact block (1801) to slide outward.

4. The petroleum coke pulverizing apparatus for preparing negative electrode materials for power lithium batteries as described in claim 3, characterized in that, It also includes a collection mechanism (19) for collecting large particles of petroleum coke powder. The collection mechanism (19) includes a connecting rod (1901), a fixed frame (1902), a collection frame (1903), and a handle (1904). The front and rear sides of the left side of the crushing frame (2) are fixedly provided with connecting rods (1901). A fixed frame (1902) is fixedly provided between the two connecting rods (1901). A collection frame (1903) for collecting large particles of petroleum coke powder is slidably provided in the fixed frame (1902). A handle (1904) is fixedly provided on the left side of the collection frame (1903).

Images