CN108654815B - Chemical raw material fine treatment method - Google Patents

Abstract

The invention belongs to the technical field of chemical raw material preparation, in particular to a method for refining chemical raw materials. The method adopts the following grinding equipment. The grinding equipment includes a grinding drum, a grinding motor, a sliding unit, a grinding unit and a return unit. The grinding drum It is cylindrical, the central axis of the grinding cylinder is placed vertically, the top of the grinding cylinder is provided with a feeding port, and the side wall of the bottom of the grinding cylinder is provided with a feeding port; the grinding motor is installed on the top of the grinding cylinder; the sliding unit is arranged in the inner wall of the grinding cylinder, and the sliding unit It is used to grind chemical raw materials in cooperation with the grinding unit; the grinding unit and the return unit are located inside the grinding cylinder, the grinding unit is located above the return unit, the grinding unit is used to grind the chemical raw materials, and the return unit is used to recover the chemical powder; After the feeding port enters the inside of the grinding cylinder, the device cuts, rolls, and recycles the chemical raw materials under the interaction of the sliding unit, the grinding unit and the return unit, so as to improve the grinding efficiency.

Description

A kind of fine processing method of chemical raw materials

technical field

The invention belongs to the technical field of chemical raw material preparation, in particular to a method for refining chemical raw materials.

Background technique

The relationship between human and chemical industry is very close, and it has spread to all aspects of life. In modern life, chemical products are almost inseparable from time to time. From material life such as clothing, food, housing, and transportation to spiritual life such as culture, art, and entertainment, chemical products are needed to serve them. Some chemical products play an epoch-making important role in the history of human development. Their production and application even represent a certain historical stage of human civilization.

At present, most of the fine treatment methods of chemical raw materials in the market are to use raw material mills. Grinding efficiency. The working pressure in the raw material mill is negative pressure, which can effectively prevent the occurrence of powder leakage. This series of products are mainly used for grinding raw materials in cement plants, and also suitable for grinding various ores and other grindable materials in industrial and mining enterprises such as metallurgy, chemical industry, and electric power. The raw material mill usually adopts the edge transmission method. The material to be ground enters the raw material mill continuously and evenly through the feeder. The motor drives the mill cylinder to rotate through the reducer. The material first spirals along the hollow shaft into the first grinding chamber. , The steel ball medium and material in the mill are affected by the friction and centrifugal force generated by the rotary motion of the cylinder. After the material is brought to a certain height under the action of centrifugal force, the material is thrown out in the form of a material curtain, and then hit and ground by the steel ball. , the pulverized products are discharged from the mill and the qualified materials are selected by the sorting equipment, and the unqualified materials in the circulating grinding system continue to return to the mill to be hit and ground by the grinding body until the fineness is qualified, but the general raw materials The structure of vertical mill includes grinding disc, grinding roller, center frame and hydraulic tension system.

In view of this, the method for refining chemical raw materials according to the present invention adds chemical raw materials to the inside of the grinding barrel by setting the feeding hole on the grinding barrel wall in the chemical raw material grinding equipment, and the cutting knife on the mounting seat is used for chemical raw materials. The raw materials are preliminarily cut, and then the cut chemical raw materials are squeezed and ground by setting a grinding head. The entire grinding process is driven by a grinding motor, with a simple structure, easy operation and low grinding cost.

SUMMARY OF THE INVENTION

In order to make up for the deficiencies of the prior art, the present invention proposes a method for refining chemical raw materials, and the present invention is mainly used to provide a method for refining chemical raw materials. In the present invention, chemical raw materials are added into the grinding cylinder by arranging the feeding hole at the top of the grinding cylinder in the grinding equipment, and the chemical raw materials fall on the rotary table, and fully cutting and rolling are realized under the mutual cooperation of the blade and the grinding head.

The technical solution adopted by the present invention to solve the technical problem is as follows: a method for refining chemical raw materials according to the present invention, the method adopts grinding equipment, and the grinding equipment includes a grinding cylinder, a grinding motor, a sliding unit, a grinding unit and a return unit, the grinding cylinder is cylindrical, the center axis of the grinding cylinder is placed vertically, the top of the grinding cylinder is provided with a feeding port, and the side wall of the bottom of the grinding cylinder is provided with a feeding port; the grinding motor is installed on the top of the grinding cylinder; the sliding The unit is arranged in the inner wall of the grinding cylinder, and the sliding unit is used to grind the chemical raw materials in cooperation with the grinding unit; the grinding unit and the return unit are located inside the grinding cylinder, the grinding unit is located above the return unit, and the grinding unit is used for grinding the chemical raw materials. , the return unit is used to recover the chemical powder formed from the ground chemical raw materials;

The grinding unit includes a rotary table, a No. 1 support rod, a screw slider mechanism and a grinding head. The rotary table is horizontally installed at the bottom of the shaft of the grinding motor. The bottom of the side surface of the rotary table is provided with a protrusion, and the protrusion is connected to the cutter vertically upward; the No. 1 support rod is symmetrically installed at the bottom of the rotary table, and the No. 1 support rod is a symmetrical L shape; the screw slider mechanism is installed on a The grinding head is connected to the bottom of the screw rod of the screw slider mechanism, and the grinding head is hemispherical. When working, the grinding motor drives the rotary table to rotate back and forth in the forward and reverse directions, thereby driving the No. 1 support rod and the screw slider mechanism to rotate, and the screw in the screw slider mechanism drives the grinding head to move up and down to fully squeeze the chemical raw materials. , effectively improve the grinding efficiency of chemical raw materials.

The method includes the following steps:

Step 1: Pretreatment: slag removal is performed on the large solids in the chemical raw materials to prevent the solids doped in the chemical raw materials from affecting the quality of the processed chemical raw materials;

Step 2: Feeding: The chemical raw materials after the slag removal in step 1 are put into the grinding cylinder from the feeding port at the top of the grinding cylinder, and inside the grinding cylinder, the grinding equipment cuts and grinds the chemical raw materials;

Step 3: Cutting: After the chemical raw material falls on the rotary table inside the grinding cylinder in Step 2, the grinding motor is turned on, and the grinding motor drives the rotary table to rotate, and the cutter on the mounting seat and on the rotary table cuts the chemical raw material and cuts it. The last chemical raw material falls into the No. 1 top plate at the bottom of the grinding cylinder;

Step 4: Grinding: After the chemical raw material falls on the No. 1 top plate in Step 3, the rotation of the turntable is controlled to drive the No. 1 support rod to rotate, and the slider in the screw slider mechanism slides on the No. 1 support rod, thereby driving the No. 1 support rod. The screw in the screw-slider mechanism moves down, and the screw in the screw-slider mechanism drives the grinding head to move down to grind the chemical raw materials on the No. 1 top plate, and the chemical raw materials become chemical powder;

Step 5: Collection: Turn on the fan, and in Step 4, the chemical powder on the top plate of No. 1 moves upward, and the chemical powder first falls on the baffle under the action of its own gravity, and then falls to the grinding cylinder through the feeding hole on the baffle The bottom is convenient for the collection of chemical powder;

Step 6: Reclaiming: Manually take out the chemical powder ground in Step 5 from the reclaiming port.

The sliding unit includes an installation box, a guide rod, a No. 2 slider, a pulley, a No. 1 sliding telescopic rod, a No. 3 spring and a No. 1 support rod. The installation box is a rectangular box body, and the installation box is symmetrically installed on the side of the grinding cylinder. On the wall, sliding rails are horizontally provided on the front and rear walls of the installation box; the guide rod is installed vertically inside the installation box, and the two ends of the guide rod are connected with the top and bottom of the installation box; the No. 2 slider is slidably installed on the guide rod The pulley is slidably installed on the slide rails on the front and rear walls of the installation box; the No. 1 sliding telescopic rod is horizontally arranged inside the installation box, one end of the No. 1 sliding telescopic rod is connected with the No. 2 slider, and the No. 1 sliding telescopic rod is The other end of the No. 3 spring is connected to the pulley; the No. 3 spring is sleeved on the No. 1 sliding telescopic rod, one end of the No. 3 spring is connected to the pulley, and the other end of the No. 3 spring is connected to the No. 2 slider; the No. 1 support rod is horizontal Symmetrically arranged inside the grinding cylinder, one end of the No. 1 support rod is connected with the screw rod in the screw slider mechanism, and the other end of the No. 1 support rod is connected with the No. 2 slider. When working, the rotation of the rotary table will generate torsion force on the No. 2 slider through the screw slider mechanism and the No. 1 support rod. The setting of the No. 3 spring and the No. 1 sliding telescopic rod can decompose part of the screw rotation in the screw slider mechanism. The torque generated on the No. 2 slider extends the service life of the device.

The return unit includes a No. 1 cylinder, a No. 1 top plate, a baffle plate and a fan, the No. 1 cylinder is vertically connected to the center of the bottom layer inside the grinding cylinder, and the No. 1 cylinder is a bottomless cylinder; the No. 1 cylinder is a bottomless cylinder; The No. 1 top plate is vertically installed inside the No. 1 cylinder, the No. 1 top plate is in the shape of a cylinder, the top of the No. 1 top plate is an arc-shaped groove, and the bottom of the No. 1 top plate is vertically upward with a channel; , one end of the baffle is connected with the side of the arc-shaped groove on the top of the No. 1 top plate, the other end of the baffle is connected with the inner wall of the grinding cylinder, and the baffle is evenly provided with material passing holes; the fan is arranged on the grinding cylinder. bottom. When working, the fan is turned on, and the fan blows upward to prevent chemical powder from flowing away from the channel and improve the collection efficiency of chemical powder.

A mounting seat is installed horizontally on the inner wall of the grinding cylinder, the mounting seat is annular, one mounting seat is provided, and the mounting seat is located above the bottom of the rotary table; the bottom of the mounting seat is vertically downwardly connected to the cutter, and the cutter at the bottom of the mounting seat It is staggered with the cutting knives on the protrusions of the rotary table. The staggered cutters can improve the cutting efficiency of chemical raw materials and make the subsequent grinding work more smoothly.

The inside of the grinding cylinder is horizontally and symmetrically installed with fixed plates, four fixed plates are arranged, and the fixed plates are located above and below the installation box; a sealing cloth is vertically arranged between the fixed plates, and the sealing cloth is installed on the fixed plate through the No. 4 spring , The sealing cloth is made of rubber material. The sealing cloth is used to prevent the dust from falling on the guide rod when grinding chemical raw materials and affecting the sliding of No. 2 slider on the guide rod, so that the grinding process of chemical raw materials is smoother.

Blocks are arranged in the channel, air holes are set vertically on the block, grooves are set on both sides of the channel, the grooves are vertically connected with the No. 2 sliding telescopic rod, and the top of the No. 2 sliding telescopic rod is horizontally connected to the support block, the support block and the block Block connection, the No. 2 sliding telescopic rod is covered with No. 2 spring, the bottom of the No. 2 spring is connected with the groove, and the top of the No. 2 spring is connected with the bottom of the support block. During operation, when the chemical powder passes through the channel, the No. 2 sliding telescopic rod and the support block can prevent the block in the channel from moving downward, thereby preventing more chemical powder from flowing away from the channel of the No. 1 top plate and reducing the loss of chemical powder. It can improve the collection efficiency of chemical powder.

The beneficial effects of the present invention are:

1. a kind of chemical raw material refinement processing method of the present invention, step 1 and step 2 in the present invention are used to carry out preliminary treatment to chemical raw material, and step 3 and step 4 are used to carry out chemical raw material entering into the grinding cylinder interior. Cutting and grinding, the fifth and sixth steps are used to collect the ground chemical raw materials. The present invention successfully realizes the cutting, grinding and collection of the chemical raw materials through six steps. workload and improve grinding efficiency.

2. In a method for refining chemical raw materials according to the present invention, the grinding equipment used in the present invention is provided with a sliding unit and a No. 2 support rod, and the sliding unit can limit the screw slider when sliding in the No. 1 chute. The movement direction of the screw rod in the mechanism can make the screw rod drive the grinding head to move vertically downward to fully grind the chemical raw materials.

3. In a method for refining chemical raw materials according to the present invention, the grinding equipment adopted in the present invention avoids chemical powder from escaping from the The channel of the No. 1 top plate flows away, so that more chemical powder falls into the bottom of the grinding cylinder through the feeding hole on the baffle plate under the action of the fan to collect, so as to avoid waste of resources.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings.

Fig. 1 is the method flow chart of the present invention;

Fig. 2 is the structural representation of grinding equipment;

Fig. 3 is the partial enlarged view of A place in Fig. 2;

Fig. 4 is the B-B sectional view of Fig. 2;

In the figure: grinding cylinder 1, grinding motor 2, sliding unit 3, grinding unit 4, return unit 5, feeding port 11, reclaiming port 12, rotary table 41, No. 1 support rod 42, screw slider mechanism 43, Grinding head 44, cutter 6, installation box 31, guide rod 32, No. 2 slider 33, pulley 34, No. 1 sliding telescopic rod 35, No. 3 spring 36, No. 1 support rod 37, No. 1 cylinder 50, No. 1 No. top plate 51, baffle 52, feeding hole 521, fan 53, mounting seat 7, fixing plate 8, sealing cloth 9, No. 4 spring 10, channel 511, stop block 5111, No. 2 sliding telescopic rod 5112, support block 5113, No. 2 spring 91.

Detailed ways

In order to make it easy to understand the technical means, creation features, achieved goals and effects of the present invention, the present invention will be further described below with reference to the specific embodiments.

As shown in Figures 1 to 4, a method for refining chemical raw materials according to the present invention, the method adopts grinding equipment, the grinding equipment includes a grinding drum 1, a grinding motor 2, a sliding unit 3, a grinding unit 4 and a return Unit 5, the grinding cylinder 1 is cylindrical, the central axis of the grinding cylinder 1 is placed vertically, the top of the grinding cylinder 1 is provided with a feeding port 11, and the bottom side wall of the grinding cylinder 1 is provided with a feeding port 12; the grinding motor 2 is installed On the top of the grinding cylinder 1; the sliding unit 3 is arranged in the inner wall of the grinding cylinder 1, and the sliding unit 3 is used to grind the chemical raw materials in cooperation with the grinding unit 4; the grinding unit 4 and the return unit 5 are located inside the grinding cylinder 1, grinding The unit 4 is located above the return unit 5, the grinding unit 4 is used for grinding the chemical raw material, and the returning unit 5 is used for recycling the chemical powder formed by the ground chemical raw material;

The grinding unit 4 includes a rotary table 41, a No. 1 support rod 42, a screw slider mechanism 43 and a grinding head 44. The rotary table 41 is horizontally installed at the bottom of the shaft of the grinding motor 2, and the rotary table 41 is in the shape of a truncated cone. The side of the rotary table 41 is an arc structure, and the bottom of the side of the rotary table 41 is provided with a protrusion, and the protrusion is connected to the cutter 4 vertically upward; the No. 1 support rod 42 is symmetrically installed on the bottom of the rotary table 41, and the No. The screw slider mechanism 43 is installed on the No. 1 support rod 42; the grinding head 44 is connected to the bottom of the screw rod of the screw slider mechanism 43, and the grinding head 44 is hemispherical. During operation, the grinding motor 2 drives the rotating table 41 to rotate back and forth in the forward and reverse directions, thereby driving the No. 1 support rod 42 and the screw slider mechanism 43 to rotate, and the screw in the screw slider mechanism 43 drives the grinding head 44 to move up and down. The chemical raw materials are fully extruded, which effectively improves the grinding efficiency of the chemical raw materials.

The method includes the following steps:

Step 1: Pretreatment: slag removal is performed on the large solids in the chemical raw materials to prevent the solids doped in the chemical raw materials from affecting the quality of the processed chemical raw materials;

Step 2: feeding: the chemical raw materials after the slag removal in step 1 are put into the grinding cylinder 1 from the feed port 11 at the top of the grinding cylinder 1, and inside the grinding cylinder 1, the grinding equipment cuts and grinds the chemical raw materials;

Step 3: Cutting: After the chemical raw material falls on the rotary table 41 inside the grinding cylinder 1 in the second step, the grinding motor 2 is turned on, and the grinding motor 2 drives the rotary table 41 to rotate, and the cutters on the mounting seat 7 and the rotary table 41 are turned on. 6. The chemical raw material is cut, and the cut chemical raw material falls on the No. 1 top plate 51 at the bottom of the grinding cylinder 1;

Step 4: Grinding: After the chemical raw material falls on the No. 1 top plate 51 in Step 3, the rotation of the rotary table 41 is controlled to drive the No. 1 support rod 42 to rotate, and the slider in the screw slider mechanism 43 is the No. 1 support rod 42. Slide up, thereby driving the screw in the screw slider mechanism 44 to move downward, and the screw in the screw slider mechanism 44 drives the grinding head 44 to move down to roll the chemical raw materials on the No. 1 top plate 41, and the chemical The raw material becomes chemical powder;

Step 5: Collection: Turn on the fan 53, the chemical powder on the No. 1 top plate 51 in Step 4 moves upward, the chemical powder first falls on the baffle 52 under the action of its own gravity, and then passes through the material passing hole on the baffle 52 521 falls to the bottom of the grinding cylinder 1, which is convenient for the collection of chemical powder;

Step 6: Reclaiming: Manually take out the chemical powder ground in Step 5 from the reclaiming port 12.

The sliding unit 3 includes an installation box 31, a guide rod 32, a No. 2 slider 33, a pulley 34, a No. 1 sliding telescopic rod 35, a No. 3 spring 36 and a No. 1 support rod 37. The installation box 31 is a rectangular box. , the installation box 31 is symmetrically installed on the side wall of the grinding cylinder, and the front and rear walls of the installation box 31 are horizontally provided with slide rails; Connected with the bottom; the No. 2 sliding block 33 is slidably installed on the guide rod 32; the pulley 34 is slidably installed on the slide rails of the front and rear walls of the installation box 31; the No. 1 sliding telescopic rod 35 is horizontally arranged on the installation box 31 Inside, one end of the No. 1 sliding telescopic rod 35 is connected with the No. 2 slider 33, and the other end of the No. 1 sliding telescopic rod 35 is connected with the pulley 34; the No. 3 spring 36 is set on the No. 1 sliding telescopic rod 35, and the No. One end of the spring 36 is connected with the pulley 34, and the other end of the No. 3 spring 36 is connected with the No. 2 slider 33; the No. 1 support rod 37 is horizontally symmetrically arranged inside the grinding cylinder 1, and one end of the No. The screw rod in the slider mechanism 43 is connected, and the other end of the No. 1 support rod 37 is connected with the No. 2 slider 33 . When working, the rotation of the rotary table 41 will generate torsion force on the second slider 33 through the screw slider mechanism 43 and the first support rod 37. The setting of the third spring 36 and the first sliding telescopic rod 35 can decompose a part of the screw slider. The torsion force generated by the rotation of the screw rod in the mechanism 43 to the second slider 33 prolongs the service life of the device.

The return unit 5 includes a No. 1 cylinder 50, a No. 1 top plate 51, a baffle 52 and a fan 53. The No. 1 cylinder 50 is vertically connected to the center of the bottom layer inside the grinding cylinder 1, and the No. 1 cylinder 50 is free. Bottom cylindrical type; the No. 1 top plate 51 is vertically installed inside the No. 1 cylinder 50, the No. 1 top plate 51 is in the shape of a cylinder, the top of the No. 1 top plate 51 is an arc-shaped groove, and the bottom of the No. 1 top plate 51 is vertical A channel 511 is opened upward; the baffle plate 52 is a bottomless truncated cone, one end of the baffle plate 52 is connected with the side of the arc-shaped groove on the top of the No. 1 top plate 51, and the other end of the baffle plate 52 is connected with the inner wall of the grinding cylinder 1 , the baffle 52 is evenly provided with material passing holes 521 ; the ventilator 53 is arranged at the bottom of the grinding cylinder 1 . When working, the fan 53 is turned on, and the fan 53 blows air upwards to prevent the chemical powder from flowing away from the channel 511 and improve the collection efficiency of the chemical powder.

A mounting seat 7 is horizontally installed on the inner wall of the grinding cylinder 1. The mounting seat 7 is annular, and one mounting seat 7 is provided. The mounting seat 7 is located above the bottom of the rotary table 41; the bottom of the mounting seat 7 is connected vertically downward with the cutter 4. The cutting knives 4 at the bottom of the mounting base 7 and the cutting knives 4 on the protrusions of the rotary table 41 are arranged in a staggered manner. The staggered cutting knives 4 can improve the cutting efficiency of chemical raw materials, so that the subsequent grinding work can be carried out more smoothly.

The inside of the grinding cylinder 1 is horizontally and symmetrically installed with fixed plates 8, four fixed plates 8 are arranged, and the fixed plates 8 are located above and below the installation box 31; a sealing cloth 9 is vertically arranged between the fixed plates 8, and the sealing cloth 9 passes through The No. 4 spring 10 is installed on the fixing plate 8, and the sealing cloth 9 is made of rubber material. The sealing cloth 9 is used to prevent dust from falling on the guide rod 32 when grinding chemical raw materials and affecting the No. 2 slider 33 on the guide rod 32. The sliding of the chemical raw material makes the grinding process of the chemical raw material smoother.

A stopper 5111 is arranged in the passage 511, the stopper 5111 is vertically provided with air holes, and grooves are formed on both sides of the passage 511. Block 5113, the support block 5113 is connected with the block 5111, the No. 2 sliding telescopic rod 5112 is covered with a No. 2 spring 91, the bottom of the No. 2 spring 91 is connected with the groove, and the top of the No. 2 spring 91 is connected with the bottom of the support block 5113. During operation, when the chemical powder passes through the channel 511, the No. 2 sliding telescopic rod 5112 and the support block 5113 can prevent the block 5111 in the channel 511 from moving downward, thereby preventing more chemical powder from flowing away from the channel 511 of the No. 1 top plate 51 , reduce the loss of chemical powder and improve the collection efficiency of chemical powder.

When in use, the chemical raw materials are put into the grinding cylinder 1 from the feeding port 11, and the curved upward arc structure at the bottom of the side surface of the rotary table 41 guides the chemical raw materials, and can delay the decline of the chemical raw materials; turn on the grinding motor 2, The grinding motor 2 drives the rotary table 41 to rotate back and forth in the forward and reverse directions, and the cutter 6 on the mounting seat 7 and on the protrusion of the rotary table 41 performs preliminary cutting of the chemical raw materials; The No. 2 support rod 37 produces a torsion force on the No. 2 slider 33, and the arrangement of the No. 3 spring 36 and the No. 1 sliding telescopic rod 35 can decompose a part of the torsion force generated by the rotation of the screw in the screw-slider mechanism 43 to the No. 2 slider 33, Extend the life of the device.

After being cut, the chemical raw material moves downward under the action of the rotation of the rotary table 41 and falls into the arc-shaped groove on the top of the No. 1 top plate 51. The chemical raw materials in the arc-shaped groove are fully extruded and ground, which effectively improves the grinding efficiency of chemical raw materials.

Turn on the fan 53, the fan 53 blows the wind into the channel 511 of the No. 1 top plate 51, so that the chemical powder falling on the No. 1 roof 51 is blown into the baffle 52, and finally, the chemical powder passes through the baffle 52. The feeding hole 521 falls into the bottom of the grinding cylinder 1 , and the ground chemical powder is taken out through the feeding port 12 .

The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have Various changes and modifications fall within the scope of the claimed invention. The claimed scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. A chemical raw material fine processing method is characterized in that: the fine processing method adopts grinding equipment, the equipment comprises a grinding cylinder (1), a grinding motor (2), a sliding unit (3), a grinding unit (4) and a return unit (5), the grinding cylinder (1) is cylindrical, the central axis of the grinding cylinder (1) is vertically placed, a feeding hole (11) is formed in the top of the grinding cylinder (1), and a material taking hole (12) is formed in the side wall of the bottom of the grinding cylinder (1); the grinding motor (2) is arranged at the top of the grinding cylinder (1); the sliding unit (3) is arranged in the inner wall of the grinding cylinder (1); the grinding unit (4) and the return unit (5) are positioned in the grinding cylinder (1), and the grinding unit (4) is positioned above the return unit (5);

the grinding unit (4) comprises a rotating table (41), a first support rod (42), a screw rod sliding block mechanism (43) and a grinding head (44), the rotating table (41) is horizontally arranged at the bottom of a shaft of the grinding motor (2), the rotating table (41) is in a circular table shape, the side surface of the rotating table (41) is in an arc-shaped structure, and the bottom of the side surface of the rotating table (41) is provided with a bulge which is vertically and upwards connected with the cutter (6); the first support rods (42) are symmetrically arranged at the bottom of the rotating platform (41), and the first support rods (42) are symmetrical L-shaped; the screw rod sliding block mechanism (43) is arranged on the first supporting rod (42); the grinding head (44) is connected to the bottom of a screw rod of the screw rod sliding block mechanism (43), and the grinding head (44) is hemispherical;

the method comprises the following steps:

the method comprises the following steps: pretreatment: removing slag from large solid matters in chemical raw materials;

step two: feeding: pouring the chemical raw materials subjected to slag removal in the step one into the grinding cylinder (1) from a feeding port (11) at the top of the grinding cylinder (1);

step three: cutting: after the chemical raw materials fall onto the rotating table (41) in the grinding cylinder (1) in the step two, starting the grinding motor (2), and carrying out primary cutting on the chemical raw materials on the rotating table (41) by using grinding equipment;

step four: grinding: in the third step, the chemical raw materials on the rotating platform (41) fall into the return unit (5), and the sliding unit (3) controls the grinding unit (4) to grind the chemical raw materials on the return unit (5);

step five: collecting: starting a ventilator, and blowing the chemical raw material powder falling onto the return unit (5) in the fourth step to the bottom of the grinding cylinder (1);

step six: taking materials: and (4) manually taking out the chemical powder ground in the step five from the material taking port (12).

2. The method for refining chemical raw materials according to claim 1, wherein: the sliding unit (3) comprises a mounting box (31), a guide rod (32), a second sliding block (33), a pulley (34), a first sliding telescopic rod (35), a third spring (36) and a first supporting rod (37), the mounting box (31) is a rectangular box body, the mounting box (31) is symmetrically mounted on the side wall of the grinding cylinder, and sliding rails are horizontally arranged on the front wall and the rear wall of the mounting box (31); the guide rod (32) is vertically arranged in the mounting box (31), and two ends of the guide rod (32) are connected with the top and the bottom of the mounting box (31); the second sliding block (33) is slidably arranged on the guide rod (32); the pulley (34) is slidably mounted on a slide rail on the front wall and the rear wall of the mounting box (31); the first sliding telescopic rod (35) is horizontally arranged in the mounting box (31), one end of the first sliding telescopic rod (35) is connected with the second sliding block (33), and the other end of the first sliding telescopic rod (35) is connected with the pulley (34); the third spring (36) is sleeved on the first sliding telescopic rod (35), one end of the third spring (36) is connected with the pulley (34), and the other end of the third spring (36) is connected with the second sliding block (33); the first supporting rod (37) is horizontally and symmetrically arranged inside the grinding cylinder (1), one end of the first supporting rod (37) is connected with a screw rod in a screw rod sliding block mechanism (43), and the other end of the first supporting rod (37) is connected with a second sliding block (33).

3. The method for refining chemical raw materials according to claim 1, wherein: the return unit (5) comprises a first cylinder (50), a first top plate (51), a baffle plate (52) and a ventilator (53), the first cylinder (50) is vertically connected to the center of the bottom layer in the grinding cylinder (1), and the first cylinder (50) is of a bottomless cylinder type; the first top plate (51) is vertically arranged in the first cylinder (50), the first top plate (51) is cylindrical, the top of the first top plate (51) is an arc-shaped groove, and a channel (511) is vertically formed in the bottom of the first top plate (51) upwards; the grinding cylinder is characterized in that the baffle (52) is of a bottomless circular truncated cone shape, one end of the baffle (52) is connected with the side edge of the circular arc groove in the top of the first top plate (51), the other end of the baffle (52) is connected with the inner wall of the grinding cylinder (1), and material passing holes (521) are uniformly formed in the baffle (52); the ventilator (53) is arranged at the bottom of the grinding cylinder (1).

4. The method for refining chemical raw materials according to claim 2, wherein: the inner wall of the grinding cylinder (1) is horizontally provided with an installation base (7), the installation bases (7) are annular, one installation base (7) is arranged, and the installation base (7) is positioned above the bottom of the rotating table (41); the bottom of the mounting seat (7) is vertically connected with the cutter (6) downwards, and the cutter (6) at the bottom of the mounting seat (7) and the cutter (6) on the projection of the rotating platform (41) are arranged in a staggered mode.

5. The method for refining chemical raw materials according to claim 2, wherein: fixing plates (8) are horizontally and symmetrically arranged in the grinding cylinder (1), four fixing plates (8) are arranged, and the fixing plates (8) are positioned above and below the mounting box (31); vertical setting sealing cloth (9) between fixed plate (8), sealing cloth (9) are installed on fixed plate (8) through No. four spring (10), and sealing cloth (9) are made by the rubber material, and sealing cloth (9) produce the dust when being used for avoiding grinding industrial chemicals and fall into on guide arm (32).

6. The method for refining chemical raw materials according to claim 3, wherein: set up dog (5111) in passageway (511), the vertical gas pocket of seting up on dog (5111), the recess is seted up to passageway (511) both sides, vertical connection second number slip telescopic link (5112) in the recess, second number slip telescopic link (5112) top horizontal connection supporting shoe (5113), supporting shoe (5113) are connected with dog (5111), the cover has No. two spring (91) on No. two slip telescopic link (5112), No. two spring (91) bottom and groove connection, No. two spring (91) top and supporting shoe (5113) bottom are connected.

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