Chemical raw material grinding equipment

Abstract

The invention relates to the technical field of chemical raw material processing, and discloses chemical raw material grinding equipment which comprises a fine grinding shell, a rough grinding shell is fixedly mounted at the top of the fine grinding shell, a rough grinding assembly is mounted in the rough grinding shell, and the rough grinding assembly is used for preliminarily grinding and crushing raw materials; an electric telescopic rod is installed outside the fine grinding shell, a driving rack is fixedly connected to the telescopic end of the electric telescopic rod, a transmission rod is movably connected to the inner wall of the fine grinding shell through a bearing, and two driving gears are fixedly connected to the middle side of the outer portion of the transmission rod; supporting plates are fixedly connected to the left side and the right side of the outer portion of the transmission rod, and a grinding roller is rotationally installed between the two supporting plates. By adopting the integrated structural design, rough grinding and fine grinding are organically combined, the traditional tedious processes of grinding and screening separation are simplified, and the occupied area and the investment cost of equipment are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of chemical raw material processing, in particular to chemical raw material grinding equipment. Background Art

[0002] In chemical production, imidazoline surfactants, as an important chemical raw material, are widely used in daily chemical industry, textile printing and dyeing, oil extraction and other fields. In its production process, the grinding link has a vital impact on the performance and quality of the product. However, the existing chemical raw material grinding equipment has many shortcomings in practical applications. On the one hand, most traditional grinding equipment adopts a single grinding method, which is difficult to meet the needs of coarse grinding and fine grinding at the same time, resulting in uneven particle size distribution after grinding and failure to meet the requirements of high-quality grinding. On the other hand, the dust problem generated during the grinding process has always plagued production companies. These dusts will not only leak into the working environment, seriously affecting the health of workers, but also accumulate inside the equipment, causing increased equipment wear and frequent failures, thereby shortening the service life of the equipment and increasing maintenance costs.

[0003] Based on this, technicians in this field have proposed a chemical raw material grinding equipment to solve the above problems. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a chemical raw material grinding device, which solves the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a chemical raw material grinding equipment, comprising a fine grinding shell, a coarse grinding shell is fixedly installed on the top of the fine grinding shell, a coarse grinding assembly is installed inside the coarse grinding shell, and the coarse grinding assembly is used for preliminary grinding and crushing of the raw materials, an electric telescopic rod is installed outside the fine grinding shell, the telescopic end of the electric telescopic rod is fixedly connected to a driving rack, the inner wall of the fine grinding shell is movably connected to a transmission rod through a bearing, two driving gears are fixedly connected to the outer middle side of the transmission rod, support plates are fixedly connected to the left and right sides of the outer side of the transmission rod, a grinding roller is rotatably installed between the two support plates, a limit plate is detachably connected to the outer side of the support plate, a swing frame is connected to the inner side of the limit plate through a rotating shaft, a movable groove is opened inside the swing frame, a movable block is slidably connected to the inner side of the movable groove, a rigid traction rope is fixedly connected to the outer side of the movable block, and a knocking ball is fixedly connected to the bottom of the swing frame.

[0006] Preferably, the coarse grinding assembly includes two crushing rollers rotatably installed inside a coarse grinding shell, the outer surfaces of the two crushing rollers are intermittently matched, the ends of the crushing rollers penetrate the outer wall of the coarse grinding shell and are fixedly connected to cylindrical gears, and a drive motor is installed on the outside of the coarse grinding shell, and the output end of the drive motor is fixedly connected to the outside of one of the cylindrical gears.

[0007] Preferably, a discharge shell is fixedly connected to one side of the bottom of the coarse grinding shell, the bottom of the discharge shell is communicated with the top of the fine grinding shell, the discharge shell is used to allow the coarsely ground raw materials to enter the interior of the fine grinding shell through the discharge shell, and a collection box is fixedly connected to the outside of the discharge shell.

[0008] Preferably, one end of one of the crushing rollers is fixedly connected to a driving disk, a driving block is fixedly connected to an external eccentric portion of the driving disk, an outer surface of the driving disk is slidably connected to a movable frame, a connecting rod is fixedly connected to the top of the movable frame, an outer side of the coarse grinding shell is fixedly connected to a fixed shell, an end of the connecting rod away from the movable frame is slidably connected to an inner wall of the fixed shell through a piston, an outer surface of the fixed shell is connected to a connecting pipe, an outer surface of the connecting pipe is connected to a plurality of dust suction pipes, an end of the connecting pipe passes through the outside of the unloading shell and is finally connected to the inside of the collecting box.

[0009] Preferably, an arc-shaped filter is detachably connected to the interior of the fine grinding shell.

[0010] Preferably, the outside of the fixed shell is connected to an air intake pipe, and both the air intake pipe and the connecting pipe are equipped with a one-way valve, the two one-way valves have opposite conduction directions, and the cross-sectional area of ​​the fixed shell is larger than the cross-sectional area of ​​the connecting pipe.

[0011] Preferably, the outer side of the support plate is fixedly connected to a support frame, the inner side of the support frame is rotatably mounted with a cleaning plate, the inner side of the cleaning plate is elastically connected to a plurality of tension springs, one end of the tension spring is connected to the outside of the support frame, the lower surface of the cleaning plate fits with the outer surface of the grinding roller, and the outer surface of the arc filter fits with the outer surface of the cleaning plate.

[0012] Preferably, a slide groove is provided inside the movable frame, and the driving block is movably connected inside the slide groove.

[0013] Preferably, a knocking plate is fixedly connected to the outer surface of the fine grinding shell, one end of the rigid traction rope away from the movable block is fixedly connected to one side of the driving rack, and the knocking ball is used to hit the knocking plate to make the arc filter vibrate.

[0014] Preferably, outer sides of the two driving gears are meshedly connected with outer sides of driving racks, and the driving racks are slidably connected to the inner top wall of the fine grinding shell.

[0015] The present invention provides a chemical raw material grinding device having the following beneficial effects: 1. The present invention first performs preliminary grinding on the raw materials, performs preliminary crushing on the raw materials quickly, and then transfers the crushed raw materials to the interior of the fine grinding shell for fine grinding, ensuring that the final product has uniform and ultra-fine particle size, meeting the high-quality grinding requirements. At the same time, the fine grinding component can also knock on the filter screen during operation, thereby effectively preventing the filter screen from being blocked, ensuring continuous and stable operation of the equipment, and reducing maintenance costs. In addition, the equipment adopts an integrated structural design, organically combining coarse grinding and fine grinding, simplifying the cumbersome process of traditional grinding and screening separation, and reducing the equipment footprint and investment costs.

[0016] 2. The present invention uses a clever airflow design and the low-pressure area generated by the Bernoulli principle to effectively absorb the dust generated by the raw materials during the rough grinding process, thereby reducing dust leakage and significantly improving the working environment. Secondly, this design reduces equipment wear and failure risks caused by dust accumulation, extends the service life of the equipment, and reduces maintenance costs.

[0017] 3. The present invention can use the tension spring to allow the cleaning plate to clean the raw materials adhering to the grinding roller when the grinding roller rotates, thereby ensuring the cleanliness of the grinding roller and the grinding efficiency. Secondly, this cleaning method can be carried out synchronously during the grinding process, avoiding the problem of uneven grinding caused by material adhesion, thereby improving the quality and consistency of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A perspective view of the present invention; Figure 2 This is a schematic diagram of the coarse grinding shell structure of the present invention; Figure 3 This is a schematic diagram of the fine grinding shell structure of the present invention; Figure 4 It is a schematic diagram of the cleaning plate structure of the present invention; Figure 5 It is a schematic diagram of the structure of the grinding roller of the present invention; Figure 6 for Figure 1 The enlarged view of point A in the middle; Figure 7 It is a schematic diagram of the swing frame structure of the present invention; Figure 8 It is a top sectional view of the blanking shell of the present invention.

[0019] Among them, 1. fine grinding shell; 2. coarse grinding shell; 301. electric telescopic rod; 302. driving rack; 303. driving gear; 304. transmission rod; 305. support plate; 306. grinding roller; 4. arc filter; 501. swing frame; 502. rigid traction rope; 503. limit plate; 504. movable block; 505. movable groove; 506. knocking ball; 507. knocking plate; 601. cleaning plate; 602. support frame; 603. tension spring; 701. fixed shell; 702. connecting pipe; 703. driving disk; 704. connecting rod; 705. movable frame; 706. driving block; 707. dust suction pipe; 8. unloading shell; 9. collecting box; 1001. crushing roller; 1002. driving motor; 1003. cylindrical gear. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Please see attached Figure 1 - Attachment Figure 8The embodiment of the present invention provides a chemical raw material grinding device, including a fine grinding shell 1, a coarse grinding shell 2 is fixedly installed on the top of the fine grinding shell 1, a coarse grinding assembly is installed inside the coarse grinding shell 2, and the coarse grinding assembly is used to perform preliminary grinding and crushing on the raw materials, an electric telescopic rod 301 is installed outside the fine grinding shell 1, and the telescopic end of the electric telescopic rod 301 is fixedly connected to a driving rack 302, and the inner wall of the fine grinding shell 1 is movably connected to a transmission rod 304 through a bearing, and the outer middle side of the transmission rod 304 is fixedly connected to two driving gears 303, the left and right sides of the outside of the transmission rod 304 are fixedly connected with support plates 305, and a grinding roller 306 is rotatably installed between the two support plates 305. The outer side of the support plate 305 is detachably connected with a limit plate 503, and the inner side of the limit plate 503 is connected with a swing frame 501 through a rotating shaft. The inside of the swing frame 501 is provided with a movable groove 505, and the inside of the movable groove 505 is slidably connected with a movable block 504, and the outside of the movable block 504 is fixedly connected with a rigid traction rope 502, and the bottom of the swing frame 501 is fixedly connected with a knocking ball 506. The inside of the fine grinding shell 1 is detachably connected with an arc filter 4, and the outer surface of the arc filter 4 is in contact with the outer surface of the cleaning plate 601. The outer surface of the fine grinding shell 1 is fixedly connected with a knocking plate 507, and the end of the rigid traction rope 502 away from the movable block 504 is fixedly connected to one side of the driving rack 302, and the knocking ball 506 is used to hit the knocking plate 507 to vibrate the arc filter 4. The outer sides of the two driving gears 303 are meshed with the outer sides of the driving racks 302 , and the driving racks 302 are slidably connected to the inner top wall of the fine grinding shell 1 .

[0022] Specifically, the function of the transmission rod 304 is to convert the reciprocating movement of the driving rack 302 into the reciprocating movement of the grinding roller 306. When the driving rack 302 moves, it will drive the driving gear 303 to swing forward and backward. The function of the support plate 305 is to support and fix the grinding roller 306. Under the transmission action of the transmission rod 304 and the support plate 305, the grinding roller 306 reciprocates along the arc surface of the arc filter 4 to perform fine grinding on the material. The function of the limit plate 503 is to limit the swing range of the swing frame 501 to ensure its stable movement. The movable groove 505 provides a track for the movement of the movable block 504.

[0023] After the raw material is initially crushed by the rough grinding assembly, it enters the interior of the fine grinding shell 1 through the unloading shell 8. The electric telescopic rod 301 is started, and the reciprocating movement of its telescopic end drives the driving rack 302 to move synchronously along the inner top wall of the fine grinding shell 1. When the driving rack 302 moves, the two driving gears 303 meshing with it will swing forward and backward. The swing of the driving gear 303 drives the grinding roller 306 to reciprocate along the curved surface of the arc filter 4 through the transmission action of the transmission rod 304 and the support plate 305. The grinding roller 306 finely grinds the material during the reciprocating movement to further reduce the particle size of the material. The material that meets the standards falls into the interior of the fine grinding shell 1 through the filter holes of the arc filter 4 and is discharged.

[0024] While the driving rack 302 is moving, the movable block 504 moves along the inner wall of the movable groove 505 through the traction force of the rigid traction rope 502. The movement of the movable block 504 causes the swing frame 501 to swing up and down with the rotating shaft as the center, thereby driving the knocking ball 506 to continuously hit the knocking plate 507. The knocking action of the knocking ball 506 indirectly causes the arc filter 4 to vibrate, preventing the material from accumulating and clogging on the arc filter 4, thereby ensuring the efficient fine grinding of the material.

[0025] The rough grinding assembly includes two crushing rollers 1001 rotatably mounted inside the rough grinding shell 2. The outer surfaces of the two crushing rollers 1001 are intermittently matched. The ends of the crushing rollers 1001 penetrate the outer wall of the rough grinding shell 2 and are fixedly connected to a cylindrical gear 1003. A driving motor 1002 is installed on the outer side of the rough grinding shell 2. The output end of the driving motor 1002 is fixedly connected to the outside of one of the cylindrical gears 1003. A feeding shell 8 is fixedly connected to one side of the bottom of the rough grinding shell 2. The bottom of the feeding shell 8 is connected to the top of the fine grinding shell 1. The feeding shell 8 is used to pass the rough-ground raw materials through the feeding shell 8 into the interior of the fine grinding shell 1. The outer side of the feeding shell 8 is fixedly connected to a collecting box 9.

[0026] Specifically, the rough grinding shell 2 serves to accommodate and protect the internal grinding components. Its internal space provides a place for the grinding of raw materials, and its outer wall structure provides support for the installation of other components. The top of the rough grinding shell 2 is provided with a feed inlet for introducing chemical raw materials into the shell; the bottom side is connected to the unloading shell 8 for conveying the raw materials after preliminary grinding to the fine grinding shell 1.

[0027] The two cylindrical gears 1003 are meshed with each other. When one of the cylindrical gears 1003 rotates, the other cylindrical gear 1003 rotates in the opposite direction due to the meshing relationship between the gears. In this way, the two crushing rollers 1001 move in opposite directions to generate shear force to grind the raw materials.

[0028] The function of the unloading shell 8 is to guide the raw materials after rough grinding from the inside of the rough grinding shell 2 to the inside of the fine grinding shell 1 to prepare for the subsequent fine grinding process.

[0029] More specifically, the chemical raw materials used to produce the imidazoline surfactant are introduced into the interior of the rough grinding shell 2 through the feed port at the top of the rough grinding shell 2. After the raw materials enter the shell, they fall into the gap between the two crushing rollers 1001. The drive motor 1002 outside the rough grinding shell 2 is started, and the output end of the drive motor 1002 drives the cylindrical gear 1003 fixedly connected thereto to rotate. Since the two cylindrical gears 1003 are meshed with each other, the other cylindrical gear 1003 will rotate in the opposite direction. In this way, the two crushing rollers 1001 will move in opposite directions to each other. When the two crushing rollers 1001 move in opposite directions, their outer surfaces will contact and separate from each other, generating shear force. The raw materials are subjected to the shear force in the gap between the two crushing rollers 1001, and are thus preliminarily ground and crushed. In this way, the particle size of the raw materials is quickly reduced, preparing for the subsequent fine grinding process.

[0030] One end of one of the crushing rollers 1001 is fixedly connected to a driving disk 703, a driving block 706 is fixedly connected to the eccentric portion of the driving disk 703, a movable frame 705 is slidably connected to the outer surface of the driving disk 703, a connecting rod 704 is fixedly connected to the top of the movable frame 705, a fixed shell 701 is fixedly connected to the outer side of the coarse grinding shell 2, one end of the connecting rod 704 away from the movable frame 705 is slidably connected to the inner wall of the fixed shell 701 through a piston, a connecting pipe 702 is connected to the outer surface of the fixed shell 701, a plurality of dust suction pipes 707 are connected to the outer surface of the connecting pipe 702, and the end of the connecting pipe 702 passes through the outside of the unloading shell 8 and finally communicates with the inside of the collection box 9. The outside of the fixed shell 701 is connected to an air intake pipe, and both the air intake pipe and the connecting pipe 702 are installed with a one-way valve, the conduction directions of the two one-way valves are opposite, and the cross-sectional area of ​​the fixed shell 701 is larger than the cross-sectional area of ​​the connecting pipe 702. A chute is provided inside the movable frame 705 , and the driving block 706 is movably connected inside the chute. A micro filter is provided inside the dust suction pipe 707 to prevent raw material particles from entering the inside of the connecting pipe 702 .

[0031] Specifically, the driving block 706 drives the movable frame 705 to move through eccentric motion. A slide slot is provided inside the movable frame 705, and the movable frame 705 converts the eccentric motion of the driving block 706 into the reciprocating motion of the connecting rod 704.

[0032] A piston is provided inside the fixed housing 701, and the piston is connected to the movable frame 705 through a connecting rod 704. The connecting pipe 702 is used to guide the flow of air and dust. The cross-sectional area of ​​the fixed housing 701 is larger than the cross-sectional area of ​​the connecting pipe 702. This design is to produce a larger flow rate change when the airflow enters the connecting pipe 702.

[0033] The function of the one-way valve is to control the one-way flow of air, ensuring that the gas can flow in the predetermined direction during the movement of the piston.

[0034] The collecting box 9 is used to collect the dust discharged through the connecting pipe 702 .

[0035] When the crushing roller 1001 rotates, the driving disc 703 rotates synchronously, and the driving block 706 moves eccentrically along the outer surface of the driving disc 703. Since the driving block 706 is movably arranged in the slide groove inside the movable frame 705, the movement of the slide groove drives the connecting rod 704 and the piston at the top to reciprocate along the inner wall of the fixed housing 701.

[0036] When the piston moves upward along the inner wall of the fixed housing 701, the one-way valve located in the air inlet pipe is closed, and the one-way valve located inside the connecting pipe 702 is opened. At this time, the gas inside the fixed housing 701 will be discharged through the connecting pipe 702. Since the cross-sectional area of ​​the connecting pipe 702 is much smaller than the cross-sectional area inside the fixed housing 701, the speed of the air increases rapidly when entering the connecting pipe 702. According to the Bernoulli principle, the faster the gas flow rate, the lower its pressure. Therefore, the pressure inside the connecting pipe 702 is reduced, thereby generating suction in the dust suction pipe 707. This suction can suck the dust generated by the raw material during the rough grinding process into the inside of the connecting pipe 702 and discharge it into the inside of the collection box 9 along with the air flow. The micro-filter provided inside the dust suction pipe 707 is used to prevent raw material particles from entering the inside of the connecting pipe 702. This design ensures that only dust and air can enter the connecting pipe 702 through the dust suction pipe 707, preventing larger raw material particles from entering the system, thereby protecting the equipment from blockage and wear.

[0037] The outer side of the support plate 305 is fixedly connected to a support frame 602, and a cleaning plate 601 is rotatably installed on the inner side of the support frame 602. The inner side of the cleaning plate 601 is elastically connected to multiple tension springs 603, and one end of the tension spring 603 is connected to the outside of the support frame 602. The lower surface of the cleaning plate 601 fits the outer surface of the grinding roller 306.

[0038] Specifically, the tension spring 603 generates tension through elastic deformation, so that the cleaning plate 601 can fit tightly against the outer surface of the grinding roller 306. Even during the reciprocating movement of the grinding roller 306, the tension spring 603 can maintain sufficient elasticity to ensure that the cleaning plate 601 is always in good contact with the grinding roller 306, thereby achieving an effective cleaning function. Through the continuous cleaning action of the cleaning plate 601, the residual material on the surface of the grinding roller 306 can be removed in time to prevent the material from accumulating on the grinding roller 306. This not only ensures the cleanliness of the grinding roller 306, but also avoids the problem of reduced grinding efficiency due to material accumulation, thereby ensuring the efficient conduct of the grinding process.

[0039] Working principle: The specific use of this device includes the following steps: Step 1: The chemical raw materials for producing imidazoline-type surfactants are introduced into the interior of the coarse grinding shell 2 through the feed port at the top of the coarse grinding shell 2, and the driving motor 1002 is started to drive one of the cylindrical gears 1003 to rotate. Since the two cylindrical gears 1003 are meshed and connected with each other, the two crushing rollers 1001 are driven to move in opposite directions, and the raw materials are preliminarily ground and crushed by the shear force of the two crushing rollers 1001; Step 2: After the raw materials are initially crushed, they pass through the unloading shell 8 and enter the interior of the fine grinding shell 1. At this time, the electric telescopic rod 301 is started, and the reciprocating movement of the telescopic end of the electric telescopic rod 301 drives the driving rack 302 to move synchronously along the inner top wall of the fine grinding shell 1. During the movement of the driving rack 302, the two driving gears 303 are driven to swing forward and backward. While the driving gear 303 is swinging, the grinding roller 306 is driven to move synchronously under the transmission action of the transmission rod 304 and the support plate 305, so that the grinding roller 306 reciprocates along the arc surface of the arc filter 4 to finely grind the material. After meeting the standards, the material passes through the filter holes of the arc filter 4 and falls into the interior of the fine grinding shell 1 and is discharged; Step 3: While the grinding roller 306 is moving, the cleaning plate 601 is always attached to the outer surface of the grinding roller 306 under the elastic tension of the tension spring 603, so that the raw materials adhering to the grinding roller 306 are cleaned by the cleaning plate 601, thereby ensuring the cleanliness and grinding efficiency of the grinding roller 306; Step 4: While driving the rack 302 to move, the movable block 504 moves along the inner wall of the movable groove 505 with the help of the traction force of the rigid traction rope 502. At this time, the swing frame 501 swings up and down with the rotating shaft as the center, and then the knocking ball 506 continuously hits the knocking plate 507, and then indirectly makes the arc filter 4 vibrate to prevent the arc filter 4 from being blocked, thereby ensuring the efficient fine grinding of the material; Step 5: When the crushing roller 1001 rotates, it also drives the driving disk 703 to rotate synchronously, so that the driving block 706 moves eccentrically along the outer surface of the driving disk 703. Since the driving block 706 is movably arranged in the slide groove inside the movable frame 705, the movement of the slide groove drives the connecting rod 704 and the top piston to move along the inner wall of the fixed shell 701. When the piston moves upward along the inner wall of the fixed shell 701, the one-way valve located in the air inlet pipe is closed, and the one-way valve located in the connecting pipe 702 is opened. At this time, the inside of the fixed shell 701 is The gas will be discharged through the connecting pipe 702. Since the cross-sectional area of ​​the air hole connecting pipe 702 is much smaller than the cross-sectional area of ​​the fixed shell 701, the speed of the air increases rapidly when entering the connecting pipe 702. Since the air is accelerated in the connecting pipe 702 and has a large flow rate, it can be known from the Bernoulli principle that the faster the gas flow rate, the smaller its pressure, so that the pressure of the connecting pipe 702 is smaller, and then the suction force is generated in the dust suction pipe 707, and the dust generated during the rough grinding of the raw material is sucked into the inside of the connecting pipe 702 and discharged into the inside of the collection box 9 along with the air flow. In this way, the dust leakage is reduced, thereby significantly improving the working environment.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A chemical raw material grinding device, comprising a fine grinding housing (1), characterized in that: A coarse grinding shell (2) is fixedly mounted on the top of the fine grinding shell (1), a coarse grinding assembly is mounted inside the coarse grinding shell (2), and the coarse grinding assembly is used to perform preliminary grinding and crushing on the raw materials; an electric telescopic rod (301) is mounted outside the fine grinding shell (1), and a drive rack (302) is fixedly connected to the telescopic end of the electric telescopic rod (301); a transmission rod (304) is movably connected to the inner wall of the fine grinding shell (1) via a bearing, and two drive gears (303) are fixedly connected to the middle side of the outside of the transmission rod (304); and left and right sides of the outside of the transmission rod (304) are Both are fixedly connected to support plates (305), a grinding roller (306) is rotatably mounted between the two support plates (305), the outer side of the support plate (305) is detachably connected to a limit plate (503), the inner side of the limit plate (503) is connected to a swing frame (501) via a rotating shaft, a movable groove (505) is provided inside the swing frame (501), a movable block (504) is slidably connected inside the movable groove (505), a rigid traction rope (502) is fixedly connected to the outside of the movable block (504), and a knocking ball (506) is fixedly connected to the bottom of the swing frame (501).

2. A chemical raw material grinding equipment according to claim 1, characterized in that: The coarse grinding assembly comprises two crushing rollers (1001) rotatably mounted inside a coarse grinding shell (2); the outer surfaces of the two crushing rollers (1001) are intermittently matched; the ends of the crushing rollers (1001) penetrate the outer wall of the coarse grinding shell (2) and are fixedly connected to cylindrical gears (1003); a driving motor (1002) is mounted on the outer side of the coarse grinding shell (2); and the output end of the driving motor (1002) is fixedly connected to the outside of one of the cylindrical gears (1003).

3. A chemical raw material grinding equipment according to claim 2, characterized in that: A discharge shell (8) is fixedly connected to one side of the bottom of the coarse grinding shell (2); the bottom of the discharge shell (8) is connected to the top of the fine grinding shell (1); the discharge shell (8) is used to allow the coarsely ground raw materials to enter the interior of the fine grinding shell (1) through the discharge shell (8); and a collection box (9) is fixedly connected to the outside of the discharge shell (8).

4. A chemical raw material grinding equipment according to claim 2, characterized in that: One end of one of the crushing rollers (1001) is fixedly connected to a driving disk (703), a driving block (706) is fixedly connected to an eccentric portion of the driving disk (703), an outer surface of the driving disk (703) is slidably connected to a movable frame (705), a connecting rod (704) is fixedly connected to the top of the movable frame (705), an outer side of the coarse grinding shell (2) is fixedly connected to a fixed shell (701), an end of the connecting rod (704) away from the movable frame (705) is slidably connected to the inner wall of the fixed shell (701) through a piston, an outer surface of the fixed shell (701) is connected to a connecting pipe (702), an outer surface of the connecting pipe (702) is connected to a plurality of dust suction pipes (707), an end of the connecting pipe (702) passes through the outside of the unloading shell (8) and is finally connected to the inside of the collection box (9).

5. The chemical raw material grinding equipment according to claim 1, characterized in that: The interior of the fine grinding shell (1) is detachably connected to an arc-shaped filter screen (4).

6. A chemical raw material grinding equipment according to claim 4, characterized in that: The outside of the fixed housing (701) is connected to an air intake pipe, and one-way valves are installed inside the air intake pipe and the connecting pipe (702). The two one-way valves have opposite conduction directions, and the cross-sectional area of ​​the fixed housing (701) is larger than the cross-sectional area of ​​the connecting pipe (702).

7. The chemical raw material grinding equipment according to claim 5, characterized in that: The outer side of the support plate (305) is fixedly connected to a support frame (602), the inner side of the support frame (602) is rotatably mounted with a cleaning plate (601), the inner side of the cleaning plate (601) is elastically connected to a plurality of tension springs (603), one end of the tension spring (603) is connected to the outside of the support frame (602), the lower surface of the cleaning plate (601) is in contact with the outer surface of the grinding roller (306), and the outer surface of the arc filter (4) is in contact with the outer surface of the cleaning plate (601).

8. The chemical raw material grinding equipment according to claim 4, characterized in that: A slide groove is provided inside the movable frame (705), and the driving block (706) is movably connected inside the slide groove.

9. The chemical raw material grinding equipment according to claim 1, characterized in that: A knocking plate (507) is fixedly connected to the outer surface of the fine grinding shell (1); one end of the rigid traction rope (502) away from the movable block (504) is fixedly connected to one side of the driving rack (302); and the knocking ball (506) is used to strike the knocking plate (507) to cause the arc-shaped filter screen (4) to vibrate.

10. The chemical raw material grinding equipment according to claim 1, characterized in that: The outer sides of the two driving gears (303) are meshedly connected with the outer sides of the driving racks (302), and the driving racks (302) are slidably connected to the inner top wall of the fine grinding shell (1).

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