Crushing mill for fine treatment of glass waste wires and use method of crushing mill

Abstract

The invention discloses a comminuting machine for fine treatment of glass waste filaments and a using method, and relates to the technical field of glass fiber waste filament treatment.The comminuting machine comprises a support, a shell is fixedly installed at the top of the support, and a cutting box is installed at the top of the shell through bolts. According to the glass fiber waste filament cutting device, the saw-tooth-shaped first cutting blade and the saw-tooth-shaped second cutting blade are combined, so that glass fiber waste filaments can be efficiently and rapidly cut; the material uniformizing device is used according to a certain shape and arranged at the corresponding position, the iron removal effect and the material uniformizing effect can be achieved, glass fiber waste filaments obtained after rough crushing evenly fall into the center of the grinding disc, a stable material layer is formed, and matched grinding work of a grinding roller and the grinding disc is facilitated; according to the glass waste wire grinding device, the grinding linear speed is increased through the tire type grinding roller mechanism, the grinding frequency is improved, the standing time of glass waste wires in a grinding area is prolonged through the bowl-shaped grinding disc structure, and the more sufficient grinding effect is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of glass fiber waste processing, and in particular to a crushing mill for finely processing glass fiber waste and a use method thereof. Background Art

[0002] Waste glass fiber is a kind of waste material inevitably produced in the process of glass fiber production. Due to its good strength, heat resistance and corrosion resistance, it can be used as filling material, fiber reinforcement material and green environmental protection material, but more waste glass fiber is recycled. Waste glass fiber is in the form of thin and long strips, which is easy to clump, which brings inconvenience to the use of recycling equipment. The smaller the particle size of waste glass fiber, the better the effect of re-drawing after re-melting, and the higher the quality of produced glass fiber.

[0003] The traditional recycling method uses a cutting machine to perform rough processing and shaping processing on the waste glass fiber, and uses a high-speed cutting system to cut the waste glass fiber. In the prior art, such as the Chinese patent number: CN204170781U "A glass fiber waste grinding system", includes a hopper, a waste wire conveying mechanism, and a ball mill. The hopper is located above the ball mill inlet, and an iron removal device is provided above the waste wire conveyor mechanism. The ball mill adopts a ceramic ball mill, and a hoist feed port is provided below the ball mill outlet, and a first vibrating screen is provided below the hoist outlet. Its beneficial effect is that the ceramic ball mill is lined with (30-80mm) thick ceramic bricks, and the grinding body is also a ceramic ball of the same material. The grinding process will not cause secondary pollution to the waste glass fiber, and effectively removes the iron impurities mixed in the waste glass, thereby improving the product quality.

[0004] In the prior art, for example, the "glass fiber waste filament crushing device" with Chinese patent number CN215963876U includes a frame, a crushing tank is arranged on the frame, a feed inlet and a discharge port are respectively arranged at both ends of the crushing tank, a crushing assembly is arranged in the crushing tank, and the crushing assembly is connected to a driving device. Its beneficial effects are that it is easy to use, and can crush cotton-like, ball-like, and long and short glass fiber waste filaments through multiple crushing units, with a high crushing rate, the use of detachable end covers of the feed inlet and the discharge port, belt drive, and a buffer pad at the bottom of the frame reduce the impact and vibration of the equipment when it is used, reduce noise, and improve the use environment of the equipment.

[0005] In the prior art, for example, the Chinese patent number CN 112536113 B, "A glass fiber continuous crushing device and waste fiber processing method", includes a first cutting device and a second cutting device, both of which are arranged in a cylinder, the upper end of the cylinder is provided with a feed port, and the lower end is provided with a discharge pipe, and the small-sized glass fibers cut by the cutting device are crushed by the crushing device. The beneficial effect is that the waste fibers wound on the material removal rod are pulled and broken into shorter glass fiber waste fibers through the relative movement of the fixed part and the rotating part, thereby solving the winding problem.

[0006] However, in the prior art, the ball mill treatment method is adopted, which has high energy consumption and maintenance costs. The material and wear degree of the grinding medium affect the size and shape of the waste wire particles, which are difficult to control. In addition, the grinding process generates a lot of dust, causing environmental pollution. Although the high-speed rotating blade cutting method can be used for preliminary coarse crushing, the crushing effect is poor. The waste wires after crushing are of different lengths and it is difficult to crush them to a particle size below 0.15 mm. The overall height of the existing continuous crushing equipment is set too high. Although a screen is provided at the bottom, it is prone to clogging, resulting in a decrease in production efficiency. The general treatment method can only obtain coarser waste glass fiber wires, and it is impossible to accurately produce finer finished product particle sizes. In order to obtain finer and higher-quality waste glass fiber wires, a crushing mill and a method of use for finely processing waste glass wires are used. Summary of the invention

[0007] The purpose of the present invention is to overcome the technical problems in the prior art that the high-speed rotating blade cutting method can only perform preliminary coarse crushing, the crushing effect is poor, the waste silk after crushing is of different lengths, and it is difficult to crush it to a particle size below 0.15mm. A crushing mill for fine processing of waste glass and a method of use are provided.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A crushing and grinding machine for fine processing of waste glass fibers, comprising: a support, a shell body fixedly mounted on the top of the support, a cutting box mounted on the top of the shell body by bolts, a feeding trough fixedly plugged into the side wall of the cutting box, a cutting assembly and a plurality of material leveling assemblies are arranged inside the cutting box, the material leveling assemblies are arranged in a staggered manner and are all located below the cutting assembly, the cutting assembly comprises a cutting wheel rotatably mounted on the inner wall of the cutting box, a plurality of cutting blades one and two are evenly arranged on the periphery of the cutting wheel in a circumferential manner, and two cutting blades two are arranged between every two cutting blades one, the material leveling assembly comprises bearing blocks symmetrically fixedly mounted on the inner walls of both sides of the cutting box, a material leveling shaft is rotatably mounted between the two bearing blocks, a material leveling barrel is fixedly sleeved on the periphery of the material leveling shaft, a plurality of steel plates are evenly fixedly mounted on the periphery of the material leveling barrel, and wear-resistant layers are fixedly connected on both sides of the steel plates, a driving mechanism is arranged on the cutting box for driving the cutting assembly to rotate, and a grinding roller mechanism is arranged below the shell body for fine grinding the coarsely broken waste glass fibers.

[0010] Preferably: the driving mechanism includes a driving motor fixedly mounted on the top of the cutting box, a main wheel is fixedly mounted on the output end of the driving motor, the cutting wheel penetrates the cutting box and extends to one end outside the cutting box and is fixedly connected to a follower wheel, a feeding wheel is rotatably arranged on the feeding trough, and a V-belt is commonly sleeved on the periphery of the main wheel, the follower wheel and the feeding wheel.

[0011] Preferably, a rib plate is fixedly connected between the bottom of the feed trough and the side wall of the cutting box, a plurality of trapezoidal grooves are formed on one side of the feed trough close to the cutting blade 1, and each trapezoidal groove cooperates with a cutting blade 1.

[0012] Preferably, a material baffle plate is provided inside the cutting box, a material receiving hopper is fixedly plugged into the top wall of the shell, and the top side of the material receiving hopper is located directly below the material baffle plate.

[0013] Preferably, a pressure cover is provided on the outer peripheral fixed sleeve of the lower end of the receiving hopper, and a plurality of reinforcing ribs are welded between the outer periphery of the receiving hopper and the pressure cover.

[0014] Preferably, the grinding roller mechanism comprises a main transmission motor and a reducer, a coupling is provided at the output end of the main transmission motor, the main transmission motor is connected to the reducer via the coupling, and a grinding disc is provided above the reducer.

[0015] Preferably, a plurality of grinding rollers are provided between the grinding disc and the pressure cover, and a sieving ring is fixedly installed on the top of the grinding disc.

[0016] Preferably, a plurality of scrapers are evenly and fixedly mounted on the bottom of the grinding disc, and a collecting box is provided below the shell.

[0017] The present invention also discloses a method for using a crushing mill for finely processing waste glass fibers, which comprises the following steps:

[0018] S1: The method for using the sieve ring is as follows: the height H3 of the sieve ring is 50mm≤H3≤100mm, the width is 10mm≤B1≤20mm, the small end aperture is 1mm≤D1≤3mm, the large end aperture is 4mm≤D2≤6mm, and the center distance between the upper and lower holes is 40mm≤L≤80mm;

[0019] S2: The method of using the grinding roller is as follows: the rotation speed of the grinding roller is controlled at 50-100r / min, the material of the grinding roller is ZG270-500 or ZG20SiMn, the grinding roller width is B, the number of grinding rollers is n, the grinding roller radius is r, and the grinding roller height is d.

[0020] 1) Number of grinding rollers n

[0021] According to the characteristics of glass fiber waste raw materials and the difference in product fineness, n=4, 6, 8

[0022] 2) Grinding roller width B

[0023] B=0.3d~0.5d

[0024] 3) Grinding roller radius r

[0025] r = B / 2;

[0026] S3: The method of using the grinding disc is as follows: the rotation speed of the grinding disc is controlled at 10-20r / min, the material of the grinding disc is ZG270-500 or ZG20SiMn, the grinding disc diameter is D, the lowest height of the grinding disc is H1, the center height of the grinding disc is H2, and the grinding radius of the grinding disc is R.

[0027] 1) Grinding disc diameter D

[0028] D=6B~8B

[0029] 2) Minimum height of grinding disc H1

[0030] H1=0.5H2~0.7H2

[0031] 3) Grinding disc center height H2

[0032] H2=0.2D~0.3D

[0033] 4) Grinding radius R of grinding disc

[0034] R=r+(30~50)mm:

[0035] S4: The method for using the cutting assembly is as follows: the rotation speed of the cutting wheel is controlled at 200-300 r / min, and the materials of the cutting blade 1 and the cutting blade 2 are tungsten steel or ceramic.

[0036] Compared with the prior art, the present invention has the following beneficial effects:

[0037] 1. In the present invention, by adopting the combination of the sawtooth-shaped cutting blade 1 and the cutting blade 2, the waste glass fiber can be quickly cut efficiently; the material leveling device is used in a certain shape and arranged in a corresponding position, which can not only play the role of iron removal, but also play the role of material leveling, so that the rough-broken waste glass fiber falls evenly into the center of the grinding disc to form a stable material layer, which is conducive to the coordinated grinding work of the grinding roller and the grinding disc;

[0038] 2. In the present invention, the grinding line speed is increased by the tire-type grinding roller mechanism, thereby improving the grinding frequency. The bowl-type grinding disc structure prolongs the residence time of the glass waste in the grinding area, thereby obtaining a more adequate grinding effect.

[0039] 3. In the present invention, the cutting box and the shell are connected by bolts, and the pressure applied by the pressure cover to the grinding roller can be adjusted by adjusting the tightness of the bolts to obtain different grinding pressures, thereby regulating the product fineness and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of the overall structure of a crushing machine for finely processing waste glass fibers and a method of using the same in one embodiment of the present invention;

[0041] Figure 2 A schematic diagram of the positional relationship between a cutting assembly and a feeding trough of a crushing mill for finely processing waste glass and a method of using the same in one embodiment of the present invention;

[0042] Figure 3 It is a schematic diagram of the overall structure of a cutting assembly in a crushing machine for finely processing waste glass and a method of using the same in one embodiment of the present invention;

[0043] Figure 4 It is a schematic diagram of the overall structure of a material leveling component in a crushing and grinding machine for finely processing waste glass fibers and a method of using the same in one embodiment of the present invention;

[0044] Figure 5 A diagram showing the structural parameters of a screening ring in a crushing mill for finely processing waste glass and a method of using the same in one embodiment of the present invention;

[0045] Figure 6 A diagram showing the structural parameters of a grinding roller and a grinding disc in a crushing mill for finely processing waste glass and a method for using the same in one embodiment of the present invention;

[0046] Figure 7 A simulation model diagram of a grinding process of waste glass fiber in a crushing and grinding machine for finely processing waste glass fiber and a method for using the same in one embodiment of the present invention;

[0047] Figure 8 This is a simulation comparison diagram of different grinding structures under the same conditions in a crushing and grinding machine for finely processing waste glass and a method of use in one embodiment of the present invention;

[0048] Fig. 9 The mass change curve of particles with a particle size of less than 0.15 mm after grinding in a crushing mill for finely processing waste glass and a method of use in one embodiment of the present invention;

[0049] Fig.10 A bar chart showing unit power consumption of different grinding structures in a crushing and grinding machine for finely processing waste glass and a method for using the same in one embodiment of the present invention;

[0050] Fig.11 This is a bar graph of the crushing rates of different grinding structures in a crushing mill for finely processing waste glass and a method of use in one embodiment of the present invention.

[0051] In the figure:

[0052] 1. Main transmission motor; 2. Coupling; 3. Support; 4. Speed ​​reducer; 5. Scraper; 6. Shell; 7. Receiving hopper; 8. Material baffle plate; 9. Material distribution assembly; 901. Wear-resistant layer; 902. Steel plate; 903. Material distribution barrel; 904. Material distribution shaft; 905. Bearing block; 10. Cutting assembly; 101. Cutting blade 1; 102. Cutting blade 2; 103. Cutting wheel; 11. Slave wheel; 12. Cutting box; 13. Driving motor; 14. V-belt; 15. Feed wheel; 16. Feed trough; 17. Rib plate; 18. Reinforcement rib; 19. Pressure cover; 20. Grinding roller; 21. Screen ring; 22. Grinding disc; 23. Collecting box. DETAILED DESCRIPTION

[0053] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described 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.

[0054] Combined with Figure 1-11In this embodiment, a crushing machine for finely processing glass waste silk and a method of using the same include: a support 3, a housing 6 is fixedly installed on the top of the support 3, a cutting box 12 is installed on the top of the housing 6 by bolts, a feeding trough 16 is fixedly plugged into the side wall of the cutting box 12, a cutting assembly 10 and a plurality of material leveling assemblies 9 are arranged inside the cutting box 12, the material leveling assemblies 9 are arranged in an interlaced manner and are all located below the cutting assembly 10, the cutting assembly 10 includes a cutting wheel 103 rotatably installed on the inner wall of the cutting box 12, and a plurality of cutting blades 101 and cutting blades 2 102 are evenly arranged on the periphery of the cutting wheel 103 in a circumferential manner. There are two cutting blades 102 between every two cutting blades 101. The material leveling component 9 includes bearing blocks 905 symmetrically fixedly installed on the inner walls on both sides of the cutting box 12. A material leveling shaft 904 is installed between the two bearing blocks 905 for common rotation. A material leveling cylinder 903 is fixedly sleeved on the periphery of the material leveling shaft 904. A plurality of steel plates 902 are evenly fixedly installed on the periphery of the material leveling cylinder 903. Wear-resistant layers 901 are fixedly connected on both sides of the steel plates 902. A driving mechanism is provided on the cutting box 12 for driving the cutting component 10 to rotate. A grinding roller mechanism is provided under the shell 6 for fine grinding of the waste glass fiber after coarse breaking.

[0055] Specifically, by providing a cutting box 12 and a feeding trough 16, waste glass fiber can be poured into the cutting box 12 through the feeding trough 16, and by evenly providing cutting blades 101 and 102 on the periphery of the cutting wheel 103, waste glass fiber can be efficiently and quickly cut, and by providing a bearing block 905, the material leveling shaft 904 and the material leveling cylinder 903 sleeved on the periphery thereof can rotate inside the cutting box 12, thereby driving a plurality of steel plates 902 and a wear-resistant layer 901 fixedly connected to the periphery thereof to rotate, which can not only remove iron, but also level the material, so that the roughly broken waste glass fiber falls evenly into the center of the grinding disc to form a stable material layer, which is beneficial to the coordinated grinding work of the grinding roller and the grinding disc.

[0056] In this embodiment: the driving mechanism includes a driving motor 13 fixedly mounted on the top of the cutting box 12, a main wheel is fixedly mounted on the output end of the driving motor 13, a cutting wheel 103 penetrates the cutting box 12 and extends to one end outside the cutting box 12 and is fixedly connected to a slave wheel 11, a feeding wheel 15 is rotatably arranged on the feeding trough 16, and a V-belt 14 is commonly sleeved on the periphery of the main wheel, the slave wheel 11 and the feeding wheel 15; a rib plate 17 is commonly fixedly connected between the bottom of the feeding trough 16 and the side wall of the cutting box 12, a plurality of trapezoidal grooves are opened on the side of the feeding trough 16 close to the cutting blade 101, and each trapezoidal groove cooperates with a cutting blade 101; a baffle plate 8 is arranged inside the cutting box 12, A material receiving hopper 7 is fixedly inserted into the top wall of the shell 6, and the top side of the material receiving hopper 7 is located directly below the material baffle plate 8; a pressure cover 19 is fixedly sleeved on the outer periphery of the lower end of the material receiving hopper 7, and a plurality of reinforcing ribs 18 are welded between the outer periphery of the material receiving hopper 7 and the pressure cover 19; the grinding roller mechanism includes a main transmission motor 1 and a reducer 4, a coupling 2 is provided at the output end of the main transmission motor 1, the main transmission motor 1 is connected to the reducer 4 through the coupling 2, and a grinding disc 22 is provided above the reducer 4; a plurality of grinding rollers 20 are provided between the grinding disc 22 and the pressure cover 19, a sieving ring 21 is fixedly installed on the top of the grinding disc 22, a plurality of scrapers 5 are evenly fixedly installed on the bottom of the grinding disc 22, and a collecting box 23 is provided below the shell 6.

[0057] Specifically, the drive motor 13 is started to drive the main wheel fixedly connected to its output end to rotate, thereby driving the feeding wheel 15 and the slave wheel 11 to rotate through the V-belt 14, the feeding wheel 15 rotates to guide the glass fiber waste on the feeding trough 16 into the cutting box 12, the slave wheel 11 rotates to drive the cutting wheel 103 to rotate, and the cutting wheel 103 drives multiple cutting blades 101 and cutting blades 2 102 uniformly and fixedly connected to its periphery to rotate, and the glass fiber waste is roughly broken by the rotation of the cutting blades 101 and the cutting blades 2 102, and the roughly broken glass fiber waste passes through multiple material balancing components 9 and then falls into the receiving hopper 7, and finally falls to the center of the grinding disc 22, and the main transmission motor 1 is started to transmit power to the grinding disc 22 through the coupling 2 and the reducer 4 for grinding. After grinding, particles with a particle size less than 0.15 mm are screened out through the screening ring 21, and particles with unqualified particle sizes continue to be ground. The particles that pass the grinding are scraped into the collecting box 23 by the rotating movement of the scraper 5.

[0058] In this embodiment: the discrete element method is used to numerically simulate the grinding process of glass fiber waste. Figure 7 The three grinding rollers A, B and C were compared and analyzed. The grinding effects of the three grinding structures were simulated. Figure 8In the simulation, the particle size of the cut glass fiber waste is 3 to 7 mm long, so the particle size is defined as 3 to 7 mm long and 1 mm wide. The material is glass fiber mainly composed of SiO2. The simulation cycle is 5s and the number of simulated particles is 50,000. In order to compare and analyze the grinding effects of the three grinding structures, the particle mass, unit power consumption and grinding rate after grinding within 5s are calculated. The simulation results are shown in Figures 9-11 .

[0059] The particle mass is defined as the mass of particles smaller than 0.15 mm produced per unit time; the grinding rate is defined as the ratio of the mass of particles smaller than 0.15 mm after grinding to the mass of particles before grinding; the unit power consumption is defined as the ratio of the energy consumed by grinding to the total mass of particles smaller than 0.15 mm produced in the cycle, where the energy consumed by grinding can be obtained by simulation post-processing calculation.

[0060] Table 1 Comparison of grinding effects of different grinding structures under the same conditions

[0061]

[0062] From the results in Table 1, it can be seen that under the same conditions, grinding roller A performs better in terms of maximum particle mass, unit power consumption and grinding rate. Figure 8 It can be seen that there are more particles under grinding roller A, the probability of experiencing grinding is the highest, and the grinding effect is the best, while there are fewer particles under grinding roller C, which are concentrated in the center of the grinding disk, so its grinding effect is poor. The number n of grinding rollers A is 6, the width B of the grinding roller is 400mm, the radius r of the grinding roller is 200mm, the diameter D of the grinding disk is 2500mm, the lowest height H1 of the grinding disk is 225mm, the center height H2 of the grinding disk is 465mm, and the grinding radius R of the grinding disk is 237mm.

[0063] Working principle: When using the present invention, the driving motor 13 is started to drive the main wheel fixedly connected to its output end to rotate, thereby driving the feeding wheel 15 and the slave wheel 11 to rotate through the V-belt 14, and the feeding wheel 15 rotates to guide the waste glass fiber on the feeding trough 16 into the cutting box 12, and the slave wheel 11 rotates to drive the cutting wheel 103 to rotate, and the cutting wheel 103 drives the multiple cutting blades 101 and 102 uniformly fixedly connected to its periphery to rotate, and the cutting blades 101 and 102 are rotated to cut the waste glass fiber into 3-7 mm long and thin strip particles, and after the cutting is completed The waste glass fiber passes through multiple material distribution components 9 and falls into the receiving hopper 7, and finally falls to the center of the grinding disc 22. The main transmission motor 1 is started to transmit power to the grinding disc 22 through the coupling 2 and the reducer 4 for grinding. Under the action of centrifugal force, the particles on the grinding disc 22 continue to move toward the edge of the grinding disc 22. When the particles pass under the grinding roller 20, they will be polished by the grinding roller 20. After grinding, particles with a particle size less than 0.15 mm are screened out by the screening ring 21, and particles with unqualified particle sizes continue to be polished. The qualified particles are scraped into the collection box 23 by the rotating motion of the scraper 5 for collection and processing.

[0064] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A crushing machine for finely processing waste glass fibers, characterized in that: The invention comprises a support (3), a housing (6) is fixedly mounted on the top of the support (3), a cutting box (12) is mounted on the top of the housing (6) by bolts, a feeding trough (16) is fixedly plugged into the side wall of the cutting box (12), a cutting assembly (10) and a plurality of material leveling assemblies (9) are arranged inside the cutting box (12), the material leveling assemblies (9) are arranged in an interlaced manner and are all located below the cutting assembly (10), the cutting assembly (10) comprises a cutting wheel (103) rotatably mounted on the inner wall of the cutting box (12), a plurality of cutting blades (101) and (102) are evenly arranged on the periphery of the cutting wheel (103) in a circumferential manner, and every two cutting blades (101) are arranged in a circumferential manner. ) are provided with two cutting blades (102) between them, the material leveling component (9) comprises bearing blocks (905) symmetrically fixedly mounted on the inner walls of both sides of the cutting box (12), a material leveling shaft (904) is rotatably mounted between the two bearing blocks (905), a material leveling cylinder (903) is fixedly sleeved on the periphery of the material leveling shaft (904), a plurality of steel plates (902) are evenly fixedly mounted on the periphery of the material leveling cylinder (903), wear-resistant layers (901) are fixedly connected on both sides of the steel plates (902), a driving mechanism is provided on the cutting box (12) for driving the cutting component (10) to rotate, a grinding roller mechanism is provided below the shell (6) for fine grinding the coarsely broken waste glass fibers.

2. A crushing and grinding machine for finely processing waste glass according to claim 1, characterized in that: The driving mechanism comprises a driving motor (13) fixedly mounted on the top of a cutting box (12); a main wheel is fixedly mounted on the output end of the driving motor (13); one end of the cutting wheel (103) passes through the cutting box (12) and extends to the outside of the cutting box (12) and is fixedly connected to a follower wheel (11); a feeding wheel (15) is rotatably arranged on the feeding trough (16); and a V-belt (14) is commonly sleeved on the peripheries of the main wheel, the follower wheel (11) and the feeding wheel (15).

3. A crushing and grinding machine for finely processing waste glass according to claim 1, characterized in that: A rib plate (17) is fixedly connected between the bottom of the feed trough (16) and the side wall of the cutting box (12), and a plurality of trapezoidal grooves are provided on one side of the feed trough (16) close to the cutting blade (101), and each trapezoidal groove cooperates with a cutting blade (101).

4. A crushing and grinding machine for finely processing waste glass according to claim 1, characterized in that: A material baffle plate (8) is arranged inside the cutting box (12), a material receiving hopper (7) is fixedly plugged into the top wall of the shell (6), and the top side of the material receiving hopper (7) is located directly below the material baffle plate (8).

5. A crushing and grinding machine for finely processing waste glass fibers according to claim 4, characterized in that: A pressure cover (19) is fixedly sleeved on the periphery of the lower end of the receiving hopper (7), and a plurality of reinforcing ribs (18) are welded between the periphery of the receiving hopper (7) and the pressure cover (19).

6. A crushing and grinding machine for finely processing waste glass fibers according to claim 5, characterized in that: The grinding roller mechanism comprises a main transmission motor (1) and a reducer (4); a coupling (2) is provided at the output end of the main transmission motor (1); the main transmission motor (1) is connected to the reducer (4) via the coupling (2); and a grinding disc (22) is provided above the reducer (4).

7. A crushing and grinding machine for finely processing waste glass fibers according to claim 6, characterized in that: A plurality of grinding rollers (20) are arranged between the grinding disc (22) and the pressure cover (19), and a screening ring (21) is fixedly mounted on the top of the grinding disc (22).

8. The crushing and grinding machine for finely processing waste glass fibers according to claim 6, characterized in that: A plurality of scrapers (5) are evenly and fixedly mounted on the bottom of the grinding disc (22), and a collecting box (23) is provided below the shell (6).

9. A method for using a crushing mill for finely processing waste glass silk, which is used to use the crushing mill for finely processing waste glass silk according to any one of claims 1 to 8, characterized in that: Including the following usage: S1: The method for using the sieve ring (21) is as follows: the height H3 of the sieve ring (21) is 50 mm ≤ H3 ≤ 100 mm, the width is 10 mm ≤ B1 ≤ 20 mm, the small end hole diameter is 1 mm ≤ D1 ≤ 3 mm, the large end hole diameter is 4 mm ≤ D2 ≤ 6 mm, and the center distance between the upper and lower holes is 40 mm ≤ L ≤ 80 mm; S2: The method for using the grinding roller (20) is as follows: the rotation speed of the grinding roller (20) is controlled at 50 to 100 r / min, the material of the grinding roller (20) is ZG270-500 or ZG20SiMn, the width B of the grinding roller (20), the number n of the grinding rollers (20), the radius r of the grinding rollers (20), and the height d of the grinding rollers (20). 1) Grinding roller (20) quantity n According to the characteristics of glass fiber waste raw materials and the difference in product fineness, n=4, 6, 8 2) Grinding roller (20) width B B=0.3d~0.5d 3) Grinding roller (20) radius r r＝B / 2； S3: The method for using the grinding disc (22) is as follows: the rotation speed of the grinding disc (22) is controlled at 10 to 20 r / min, the material of the grinding disc (22) is ZG270-500 or ZG20SiMn, the diameter of the grinding disc (22) is D, the minimum height of the grinding disc (22) is H1, the center height of the grinding disc (22) is H2, and the grinding radius of the grinding disc (22) is R. 1) Grinding disc (22) diameter D D=6B~8B 2) Grinding disc (22) minimum height H1 H1=0.5H2~0.7H2 3) Grinding disc (22) center height H2 H2=0.2D~0.3D 4) Grinding disc (22) Grinding radius R R=r+(30~50)mm: S4: The method for using the cutting assembly (10) is as follows: the rotation speed of the cutting wheel (103) is controlled at 200-300 r / min, and the materials of the cutting blade 1 (101) and the cutting blade 2 (102) are tungsten steel or ceramic.

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