CN219502855U - Dust fall device for crushing DMC (DMC) raw materials - Google Patents

Abstract

The utility model discloses a dust suppression device for crushing DMC raw materials, which comprises a processing box. Two rotating shafts are installed in rotation in the processing box, and crushing rollers are fixedly sleeved on the two rotating shafts, and the two crushing rollers are fixed at equal intervals. A plurality of crushing teeth are installed, and a casing is fixedly installed on the left outer wall of the processing box. The left ends of the two rotating shafts all extend into the casing, and the left ends of the two rotating shafts are fixedly installed with the first spur gear. The spur gears are engaged with each other, and a first motor is fixedly installed on the left inner wall of the casing, and the output shaft end of the first motor is fixedly connected with the left end of one of the two rotating shafts. The utility model has a reasonable design, can fully and thoroughly suck the dust generated in the process of crushing DMC raw materials out of the processing box and transport it to the dust collection box for collection and storage, can effectively replace the traditional water spraying and dust reduction method, is simple and convenient to operate, and saves time , Improve work efficiency, good practicability.

Description

A dust suppression device for crushing DMC raw materials

technical field

The utility model relates to the technical field of dust suppression equipment, in particular to a dust suppression device for crushing DMC raw materials.

Background technique

DMC, also known as dimethyl carbonate, is a chemical raw material with low toxicity, excellent environmental performance and wide application. It is an important intermediate in organic synthesis. Its molecular structure contains functional groups such as carbonyl, methyl and methoxy groups. It has A variety of reaction performance, in the production with the characteristics of safety, convenience, less pollution, easy transportation and so on. The production of DMC generally uses waste silica gel as raw material. After crushing the waste silica gel and adding benzenesulfonic acid for cracking reaction, it goes through the process of condensing and standing, adding potassium hydroxide for rearrangement, adding activated carbon for refining, filtering, distilling filter residue and packaging. Production. Existing waste crushing and dust suppression devices for DMC raw materials generally include a crushing assembly and a dust suppression assembly. The dust suppression assembly generally includes a water tank, a water pipe, and a nozzle. The components perform dust reduction work, which makes the waste silica gel mixed with a large amount of water after dust reduction, which affects the subsequent process after the raw material is crushed in DMC production.

A kind of dust-reducing device for pulverizing DMC raw material according to the Chinese Patent Announcement No. CN217450433U for the above-mentioned problem, the dust-reducing device for pulverizing DMC raw material comprises a pulverizing structure, a drying structure and a dust-reducing structure, and the pulverizing structure comprises a first casing, a second A feed pipe, crushing assembly and discharge assembly, the first feed pipe communicates with the first box, the crushing assembly is set inside the first box, and the discharge assembly is set in the The inside of the first box body, the drying structure includes a second feed pipe, a second box body, a first motor, a hot air blower, an air outlet pipe and a branch pipe, and the second feed pipe and the second box body The feeding direction of the second feed pipe corresponds to the discharge assembly, the first motor is installed on the top of the second box, and the output end of the first motor is connected to the air outlet pipe . In this application, the dust reduction device for crushing DMC raw materials is convenient for crushing, dust reduction and drying of DMC raw materials.

The above scheme still has at least the following defects in actual operation: after using water spray to reduce dust, the crushed DMC raw material is dried, and the operation process is cumbersome. When drying the crushed DMC raw material, it will undoubtedly increase the work. time, reducing work efficiency, for this reason, we propose a dust suppression device for crushing DMC raw materials to solve the above problems.

Utility model content

(1) Solved technical problems

Aiming at the deficiencies of the prior art, the utility model provides a dust reduction device for crushing DMC raw materials, which solves the problem of drying the crushed DMC raw materials after dust reduction by spraying water. The operation process is cumbersome, increasing working time and reducing problem of work efficiency.

(2) Technical solutions

In order to achieve the above object, the utility model provides the following technical solutions: a dust suppression device for crushing DMC raw materials, including a processing box, two rotating shafts are installed for rotation in the processing box, and crushing rollers are fixedly sleeved on the two rotating shafts. A plurality of crushing teeth are fixedly installed on the two crushing rollers at equal intervals, a casing is fixedly installed on the left outer wall of the processing box, the left ends of the two rotating shafts extend into the casing, and the left ends of the two rotating shafts are fixedly installed with a Straight gear, two first straight gears are meshed, the first motor is fixedly installed on the left inner wall of the casing, the output shaft end of the first motor is fixedly connected with the left end of one of the two rotating shafts, the processing box The top is equipped with a feeding assembly for conveying DMC raw materials to the inside of the processing box, the processing box is equipped with a soot blowing assembly located under the crushing roller, and the right side of the processing box is equipped with a dust suction assembly.

Preferably, the feeding assembly includes a feeding tube, a hopper, a spiral feeding shaft, a feeding tube and a second motor, the feeding tube is fixedly installed on the top of the processing box, and the hopper is fixedly installed on the top of the feeding tube, The spiral feeding shaft is installed in the feeding barrel, the feeding tube is fixedly installed at the bottom of the feeding barrel, the bottom end of the feeding tube extends into the processing box, and the second motor is fixedly installed on the left outer wall of the feeding barrel Above, the output shaft end of the second motor extends into the material delivery cylinder and is fixedly connected with the left end of the helical material delivery shaft.

Preferably, the processing box is provided with a material guide frame located above the crushing roller, upper reinforcing rods are fixedly installed on the left outer wall and the right outer wall of the material guide frame, and the ends of the two upper reinforcing rods are respectively connected to the The left inner wall and the right inner wall of the processing box are fixedly connected, and the bottom end of the feeding pipe extends into the material guide frame.

Preferably, the soot blowing assembly includes a mounting box, two lower reinforcing rods, an arc-shaped material retaining net, two shaft seats, two vertical shafts, two fan blades, two sprockets, a chain, and a driven bevel gear , the positioning shaft, the second spur gear, the transmission rod, the third spur gear and the driving bevel gear, the installation box is located below the crushing roller, and the two lower reinforcing rods are respectively fixedly installed on the left outer wall and the right outer wall of the installation box, The ends of the two lower reinforcing rods far away from each other are fixedly connected to the left inner wall and the right inner wall of the processing box respectively. The top of the installation box is an open structure, and the arc-shaped material retaining net is fixedly installed on the top of the installation box. It is fixedly installed on the inner wall of the bottom of the installation box, and the two vertical shafts are respectively rotated and installed on the corresponding shaft seats. The two fan blades are respectively fixedly installed on the top of the corresponding vertical shafts. On the corresponding vertical shaft, the chain is wound on the two sprockets, the driven bevel gear is fixedly sleeved on one of the two vertical shafts, and the positioning shaft is fixedly installed on the left outer wall of the processing box and located on the cover. In the housing, the second spur gear is installed on the left end of the positioning shaft for rotation, and the second spur gear meshes with one of the two first spur gears. On the inner wall of the left side of the processing box, there is a hole communicating with the casing. The installation hole, the transmission rod is installed in the installation hole through the bearing rotation, both ends of the transmission rod extend to the outside of the installation hole, the third spur gear is fixedly installed on the left end of the transmission rod, the third spur gear meshes with the second spur gear, and the installation A horizontal hole is provided on the left side inner wall of the box, and the right end of the transmission rod runs through the horizontal hole. The driving bevel gear is fixedly installed on the right end of the transmission rod, and the driving bevel gear meshes with the driven bevel gear.

Preferably, a sealing ring is fixedly installed on the inner wall of the horizontal hole, and the transmission rod is rotationally and sealingly engaged with the horizontal hole through the sealing ring.

Preferably, the dust collection assembly includes a vacuum cleaner, a dust collection box, a dust suction pipe, a dust discharge pipe, and a material retaining screen cover. Above, one end of the dust suction pipe is fixedly connected with the suction end of the vacuum cleaner, one end of the dust discharge pipe is fixedly connected with the discharge end of the vacuum cleaner, and the end of the dust discharge pipe away from the vacuum cleaner extends into the dust collection box, and the material retaining net cover is fixedly installed on the On the right inner wall of the processing box and above the crushing roller, the end of the dust suction pipe away from the vacuum cleaner extends into the material retaining screen cover.

Preferably, the top of the dust collection box is provided with an air outlet, and a dust-proof net is fixedly installed in the air outlet, and a dust cleaning port is provided on the front inner wall of the dust collection box, and the front outer wall of the dust collection box is fixed by screws. A cleaning door is installed, and the cleaning door is matched with the ash-cleaning port.

Preferably, a collection box is placed on the inner wall of the bottom of the processing box, the top of the collection box is an open structure, and the right side of the processing box is provided with a material intake on the inner wall, and the right side of the collection box extends into the material intake. The outer wall on the right side of the machine is fixed with a cover plate by screws, and the cover plate is matched with the feeding port.

(3) Beneficial effects

The utility model provides a dust suppression device for crushing DMC raw materials. Has the following beneficial effects:

(1), this a kind of DMC raw material crushing dust suppression device, by utilizing the feeding assembly that is made up of feeding cylinder, hopper, spiral feeding shaft, feeding pipe and the second electric motor combination, can put DMC raw material in uniform speed and even amount transported to the processing box for subsequent crushing.

(2), this a kind of DMC raw material crushing dust suppression device, by starting the first motor operation, utilizes the engagement transmission effect of two first straight gears, can control two crushing rollers to rotate in opposite directions synchronously, utilizes two crushing rollers to drive its The rotation of multiple crushing teeth on the top can realize effective crushing of DMC raw materials, and the crushed DMC raw materials will fall into the collection box.

(3), the dust suppression device for crushing DMC raw materials, by using the installation box, two lower reinforcement bars, arc-shaped material retaining net, two shaft seats, two vertical shafts, two fan blades, and two chains Wheel, chain, driven bevel gear, positioning shaft, second spur gear, transmission rod, third spur gear and driving bevel gear are combined to form a soot blowing assembly. During the process of crushing DMC raw materials, the generated dust can be blown Blow upwards for efficient and thorough collection of dust later on.

(4), this a kind of DMC raw material pulverizing dust-reducing device, by utilizing the dust-absorbing assembly that is combined by vacuum cleaner, dust collection box, dust-absorbing pipe, dust-discharging pipe and retaining net cover, can pulverize DMC raw material process and produce The dust is more comprehensively and thoroughly sucked out of the processing box and transported to the dust collection box for collection and storage, which achieves a good dust reduction effect and can effectively replace the traditional water spray dust reduction method. The operation is simple and convenient, saving time and improving work efficiency. . It solves the problem of drying the pulverized DMC raw material after spraying water to reduce dust. The operation process is cumbersome, the working time is increased, and the work efficiency is reduced.

Description of drawings

Fig. 1 is a schematic diagram of the three-dimensional structure of the utility model;

Fig. 2 is the sectional structure schematic diagram of the utility model main view;

Fig. 3 is the top view structure schematic diagram of pulverizing roller;

FIG. 4 is an enlarged schematic view of part A in FIG. 2 .

In the figure: 1. Processing box; 2. Rotating shaft; 3. Crushing roller; 4. Crushing teeth; 5. Cover; 6. The first spur gear; 7. The first motor; 10. Spiral feeding shaft; 11. Feeding pipe; 12. Second motor; 13. Material guide frame; 14. Upper reinforcing rod; 15. Installation box; 16. Lower reinforcing rod; ; 18, shaft seat; 19, vertical shaft; 20, fan blade; 21, sprocket wheel; 22, chain; 23, driven bevel gear; 24, positioning shaft; 25, second spur gear; 26, transmission rod; 27 , the third spur gear; 28, the active bevel gear; 29, the vacuum cleaner; 30, the dust box; 31, the dust suction pipe; 32, the dust discharge pipe; Door; 36, collection box; 37, cover plate.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

In describing the present invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical" , "horizontal", "top", "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as limiting the utility model. In addition, in the description of the utility model, "plurality" The meaning is two or more, unless otherwise clearly and specifically defined.

As shown in Figures 1-4, the utility model provides a technical solution: a dust suppression device for crushing DMC raw materials, including a processing box 1, two crushing rollers 3, a feeding assembly, a soot blowing assembly and a dust suction assembly, wherein :

Two rotating shafts 2 are rotated in the processing box 1, and two crushing rollers 3 are respectively fixedly sleeved on the corresponding rotating shafts 2. A plurality of crushing teeth 4 are fixedly installed on the two crushing rollers 3 at equal intervals. It should be noted that, using A plurality of crushing teeth 4 provided on the two crushing rollers 3 are arranged in a staggered manner, and then the DMC raw material can be effectively crushed. On the left outer wall of the processing box 1, a casing 5 is fixedly installed. Both extend into the casing 5, the left ends of the two rotating shafts 2 are fixedly installed with a first spur gear 6, and the two first spur gears 6 are meshed, and a first motor 7 is fixedly installed on the left inner wall of the casing 5, The output shaft end of the first motor 7 is fixedly connected with the left end of a rotating shaft 2 in the two rotating shafts 2, and the rotating shaft 2 fixedly connected with the output shaft can be driven by the first motor 7 to rotate, and the meshing of the two first spur gears 6 is utilized The transmission function can control the two rotating shafts 2 to rotate synchronously in opposite directions, and then realize the synchronous rotation of the two crushing rollers 3 in opposite directions, which is used to crush the DMC raw material. It should be noted that the shape and size of the two first spur gears 6 are the same Setting, the feeding assembly is arranged on the top of the processing box 1, and the feeding assembly is used to transport the DMC raw material to the inside of the processing box 1. The above-mentioned feeding assembly includes a feeding cylinder 8, a hopper 9, a spiral feeding shaft 10, a lower The material pipe 11 and the second motor 12, the feeding tube 8 are fixedly installed on the top of the processing box 1, the hopper 9 is fixedly installed on the top of the feeding tube 8, the spiral feeding shaft 10 is installed in the feeding tube 8 in rotation, and the bottom The material pipe 11 is fixedly installed on the bottom of the feeding tube 8, and the bottom end of the feeding tube 11 extends into the processing box 1. The second motor 12 is fixedly installed on the left side outer wall of the material feeding tube 8. The output of the second motor 12 The shaft end extends into the feeding barrel 8 and is fixedly connected with the left end of the spiral feeding shaft 10. Using the hopper 9, the DMC raw material can be put into the feeding barrel 8, and the second motor 12 can be used to control the spiral feeding shaft 10. Rotating, the DMC raw material can be transported to the right at a uniform speed and even amount, so that the DMC raw material is discharged from the feeding pipe 11 into the inside of the processing box 1. The soot blowing assembly is arranged on the processing box 1 and below the crushing roller 3. The above-mentioned soot blowing assembly Including installation box 15, two lower reinforcing rods 16, arc-shaped material retaining net 17, two shaft seats 18, two vertical shafts 19, two fan blades 20, two sprockets 21, chain 22, driven bevel gear 23. The positioning shaft 24, the second spur gear 25, the transmission rod 26, the third spur gear 27 and the driving bevel gear 28, the installation box 15 is located below the crushing roller 3, and the two lower reinforcement bars 16 are fixedly installed in the installation box 15 respectively On the left side outer wall and the right side outer wall, two lower reinforcement rods 16 are fixedly connected to the left side inner wall and the right side inner wall of the processing box 1 at the ends far away from each other. 17 is fixedly installed on the top of the installation box 15, and the arc-shaped material retaining net 17 can be used to prevent the crushed DMC raw material from falling into the installation box 15. The two shaft seats 18 are fixedly installed on the bottom inner wall of the installation box 15. Two vertical shafts 19 are respectively rotatably mounted on the corresponding shaft seats 18, two fan blades 20 are respectively fixedly mounted on the tops of the corresponding vertical shafts 19, and two sprockets 21 are respectively fixedly sleeved on the corresponding vertical shafts 19. , the chain 22 is wound on the two sprockets 21, the driven bevel gear 23 is fixedly sleeved on one of the two vertical shafts 19, the positioning shaft 24 is fixedly installed on the left outer wall of the processing box 1 and Located in the casing 5, the second spur gear 25 is rotatably mounted on the left end of the positioning shaft 24, the second spur gear 25 meshes with one of the two first spur gears 6, and the second spur gear 25 is engaged with the first spur gear 6 One of the first spur gears 6 meshing transmission, and utilize the third spur gear 27 and the second spur gear 25 meshing transmission, can control the third spur gear 27 to drive the transmission rod 26 and the driving bevel gear 28 to rotate, it needs to be explained What is more, the diameter size of the second spur gear 25 is the same as the diameter size of the first spur gear 6, and the diameter size of the third spur gear 27 is smaller than the diameter size of the second spur gear 25. The characteristics of the speed increase make the rotating speed of the transmission rod 26 greater than that of the crushing roller 3, and the left inner wall of the processing box 1 is provided with a mounting hole communicating with the casing 5, and the transmission rod 26 is installed in the mounting hole by rotating the bearing. The two ends of drive rod 26 all extend to the outside of mounting hole, and the 3rd spur gear 27 is fixedly installed on the left end of drive rod 26, and the 3rd spur gear 27 is meshed with the 2nd spur gear 25, and on the left side inner wall of installation box 15, be provided with Horizontal hole, the right end of the transmission rod 26 runs through the horizontal hole, the driving bevel gear 28 is fixedly installed on the right end of the transmission rod 26, the driving bevel gear 28 meshes with the driven bevel gear 23, and the driving bevel gear 28 and the driven bevel gear 23 are engaged transmission function, and by using the transmission function of the two sprockets 21 and the chain 22, the two vertical shafts 19 can be controlled to drive the corresponding fan blades 20 to rotate synchronously, and the rotation of the two fan blades 20 can generate The upward-flowing airflow can then blow up the dust generated when the DMC raw material is crushed, so that the dust can be collected effectively and thoroughly in the follow-up to achieve a good dust reduction effect. The dust suction component is arranged on the right side of the processing box 1. The above The dust collection assembly comprises vacuum cleaner 29, dust collecting box 30, dust suction pipe 31, dust discharge pipe 32 and material retaining mesh cover 33, and vacuum cleaner 29 and dust collection box 30 are all fixedly installed on the right side outer wall of processing box 1, and dust collector 29 Located above the dust collection box 30, one end of the dust suction pipe 31 is fixedly connected to the suction end of the vacuum cleaner 29, one end of the dust discharge pipe 32 is fixedly connected to the discharge end of the dust collector 29, and the end of the dust discharge pipe 32 away from the dust collector 29 extends to the collector. In the dust box 30, the material retaining net cover 33 is fixedly installed on the right side inner wall of the processing box 1 and is positioned at the top of the crushing roller 3, and the end of the dust suction pipe 31 away from the vacuum cleaner 29 extends into the material retaining net cover 33. The suction force generated during operation can suck out the dust inside the processing box 1 and transport it to the dust collection box 30 for storage. The material retaining net cover 33 can be used to block and intercept the crushed DMC raw materials, avoiding the crushed DMC raw materials It is sucked out of the processing box 1. It should be noted that the size of the mesh on the material retaining net cover 33 can only allow small particles of dust to pass through.

In the present embodiment, the processing box 1 is provided with a material guide frame 13 positioned above the crushing roller 3, and upper reinforcement rods 14 are fixedly installed on the left side outer wall and the right side outer wall of the material guide frame 13, two upper reinforcement rods 14 One end far away from each other is fixedly connected with the left inner wall and the right inner wall of the processing box 1 respectively, and the bottom end of the feeding pipe 11 extends into the material guide frame 13, and utilizes two upper reinforcing rods 14 to play a role in supporting the material guide frame 13. For reliable support and positioning, the material guide frame 13 can be used to smoothly guide the DMC raw material entering the processing box 1 between the two crushing rollers 3, so that the subsequent effective and thorough crushing of the DMC raw material is required. It is illustrated that the material guide frame 13 is located directly above between the two crushing rollers 3 .

In this embodiment, a sealing ring is fixedly installed on the inner wall of the horizontal hole, and the transmission rod 26 is rotated and sealed with the horizontal hole through the sealing ring, and the gap between the transmission rod 26 and the horizontal hole can be sealed by using the sealing ring to avoid dust Enter the installation box 15 from the gap between the transmission rod 26 and the horizontal hole

In this embodiment, the top of the dust box 30 is provided with an air outlet, and a dust-proof net 34 is fixedly installed in the air outlet, and the air outlet is used to discharge the air entering the dust box 30. Prevent the dust from entering the inside of the dust collection box 30 from being discharged from the air outlet. The front side inner wall of the dust collection box 30 is provided with a dust removal port, and the front side outer wall of the dust collection box 30 is fixed with a cleaning door 35 by screws. Compatible with the dust removal port, the dust removal port and the cleaning door 35 are utilized to facilitate the dust collected in the dust box 30 to be cleaned out.

In this embodiment, a collection box 36 is placed on the bottom inner wall of the processing box 1, and the top of the collection box 36 is an open structure. In the material opening, a cover plate 37 is fixedly installed on the right side outer wall of the processing box 1 by screws, and the cover plate 37 is compatible with the material intake. The collection box 36 is used to facilitate access to the crushed DMC raw materials. The setting of the material intake , to facilitate the taking out and putting in of the collecting box 36, and the cover plate 37 is used to block the material taking port.

In this embodiment, a control switch is fixedly installed on the front side wall of the processing box 1, and the first motor 7, the second motor 12, the vacuum cleaner 29 and the control switch are electrically connected to the external power line through wires in turn, and the control switch can be used for respectively Control the opening and closing of the first motor 7, the second motor 12, and the vacuum cleaner 29.

Through the above-mentioned structure, the dust reduction device for crushing DMC raw materials provided by the utility model can fully and thoroughly suck the dust generated in the process of crushing DMC raw materials out of the processing box 1 and transport it to the dust collection box 30 for collection and storage, which can effectively replace the traditional The water spray dust reduction method is simple and convenient to operate, saves time, improves work efficiency, and has good practicability. During specific operations, start the second motor 12 to run, pour the DMC raw material from the hopper 9 into the feeding barrel 8, and use the second motor 12 drives the rotation of the spiral feeding shaft 10, which can transport the DMC raw material to the right at a uniform speed and even amount, so that the DMC raw material falls between the two crushing rollers 3 through the feeding pipe 11, and the first motor 7 is started to run. The meshing transmission effect of the two first spur gears 6 can control the synchronous rotation of the two rotating shafts 2 in opposite directions, so that the two grinding rollers 3 can rotate in opposite directions synchronously. Rotate, the DMC raw material can be effectively crushed, and the crushed DMC raw material falls into the collection box 36. During the crushing process of the DMC raw material, the second spur gear 25 and one of the first spur gears 6 are engaged to drive function, and utilize the third spur gear 27 and the second spur gear 25 meshing transmission effect, can control the third spur gear 27 to drive the transmission rod 26 and the driving bevel gear 28 to rotate, and then use the driving bevel gear 28 and the driven bevel gear 23 The meshing transmission effect of the two sprockets 21 and the chain 22 can be used to control the two vertical shafts 19 to drive the corresponding fan blades 20 to rotate synchronously, and the rotation of the two fan blades 20 can be used in the processing box 1 An upward-flowing airflow is generated inside, and then the dust generated when the DMC raw material is crushed can be blown upward. By starting the operation of the vacuum cleaner 29, the dust inside the processing box 1 can be sucked out more thoroughly by using the suction force generated during the operation of the vacuum cleaner 29 And transport to the dust collection box 30 for collection and storage, so as to achieve a good dust reduction effect.

The above is only a specific embodiment of the present utility model, but the scope of protection of the present utility model is not limited thereto. Any skilled person familiar with the technical field can easily think of changes or changes within the technical scope of the utility model. Replacement should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be based on the protection scope of the claims.

Claims (8)

1. a kind of DMC raw material is pulverized and is characterized in that: comprise processing box (1), and two rotating shafts (2) are installed in rotation in described processing box (1), on two described rotating shafts (2) The fixed sleeve is provided with crushing rollers (3), and a plurality of crushing teeth (4) are fixedly installed on the two crushing rollers (3) at equal intervals, and a casing is fixedly installed on the left outer wall of the processing box (1). (5), the left ends of the two rotating shafts (2) extend into the casing (5), the left ends of the two rotating shafts (2) are fixedly equipped with first spur gears (6), and the two The first spur gear (6) is meshed, and the first motor (7) is fixedly installed on the left inner wall of the casing (5), and the output shaft end of the first motor (7) is connected with the two The left end of a rotating shaft (2) in the rotating shaft (2) is fixedly connected, and the top of the processing box (1) is provided with a feed assembly for conveying DMC raw materials to the inside of the processing box (1), and the processing box ( 1) is provided with a soot blowing assembly located below the crushing roller (3), and a dust suction assembly is provided on the right side of the processing box (1). 2. A kind of DMC raw material crushing dust suppression device according to claim 1, is characterized in that: described feeding assembly comprises feeding tube (8), hopper (9), spiral feeding shaft (10), lower Material pipe (11) and second motor (12), described feeding tube (8) is fixedly installed on the top of described processing box (1), and described hopper (9) is fixedly installed on described feeding tube (8) ), the spiral feeding shaft (10) is rotatably installed in the feeding tube (8), and the feeding tube (11) is fixedly installed at the bottom of the feeding tube (8), so The bottom end of the feeding tube (11) extends into the processing box (1), the second motor (12) is fixedly installed on the left outer wall of the feeding tube (8), and the second The output shaft end of the motor (12) extends into the material delivery cylinder (8) and is fixedly connected with the left end of the spiral material delivery shaft (10). 3. a kind of DMC raw material pulverizing according to claim 2 is characterized in that: the material guide frame (13) that is positioned at pulverizing roller (3) top is provided with in the described processing box (1), described guide Upper reinforcement bars (14) are fixedly installed on the left side outer wall and the right side outer wall of the material frame (13). The side inner wall is fixedly connected with the right inner wall, and the bottom end of the feeding pipe (11) extends into the material guide frame (13). 4. A kind of DMC raw material crushing dust suppression device according to claim 1, is characterized in that: described soot blowing assembly comprises installation box (15), two lower reinforcement rods (16), arc material retaining net (17 ), two shaft seats (18), two vertical shafts (19), two fan blades (20), two sprockets (21), chains (22), driven bevel gears (23), positioning shafts ( 24), the second spur gear (25), the transmission rod (26), the third spur gear (27) and the driving bevel gear (28), the installation box (15) is located below the crushing roller (3), The two lower reinforcing rods (16) are respectively fixedly installed on the left outer wall and the right outer wall of the installation box (15), and the ends of the two lower reinforcing rods (16) are respectively connected with the processing The left inner wall and the right inner wall of the box (1) are fixedly connected, the top of the installation box (15) is an open structure, and the arc-shaped material retaining net (17) is fixedly installed on the top of the installation box (15) , the two shaft seats (18) are fixedly mounted on the bottom inner wall of the installation box (15), and the two vertical shafts (19) are respectively rotatably mounted on the corresponding shaft seats (18) , the two fan blades (20) are respectively fixedly mounted on the top ends of the corresponding vertical shafts (19), and the two sprockets (21) are respectively fixedly sleeved on the corresponding vertical shafts (19) Above, the chain (22) is wound on the two sprockets (21), and the driven bevel gear (23) is fixedly sleeved on one of the two vertical shafts (19) ( 19), the positioning shaft (24) is fixedly installed on the left outer wall of the processing box (1) and is located in the casing (5), and the second spur gear (25) is rotatably installed on the positioning The left end of the shaft (24), the second spur gear (25) meshes with one of the two first spur gears (6), the left side of the processing box (1) The inner wall is provided with a mounting hole communicating with the casing (5), the transmission rod (26) is rotatably mounted in the mounting hole through a bearing, and both ends of the transmission rod (26) extend to the mounting hole. Outside the hole, the third spur gear (27) is fixedly installed on the left end of the transmission rod (26), the third spur gear (27) meshes with the second spur gear (25), and the installation box (15) is provided with a horizontal hole on the left inner wall, and the right end of the transmission rod (26) runs through the horizontal hole, and the active bevel gear (28) is fixedly installed on the right end of the transmission rod (26), so The driving bevel gear (28) meshes with the driven bevel gear (23). 5. a kind of DMC raw material pulverizing according to claim 4 is characterized in that: on the inner wall of described horizontal hole, sealing ring is fixedly installed, and described transmission rod (26) passes through sealing ring and described horizontal hole Rotary seal fit. 6. A kind of DMC raw material crushing dust suppression device according to claim 1, is characterized in that: described dust suction assembly comprises vacuum cleaner (29), dust collection box (30), dust suction pipe (31), dust discharge pipe (32) and material retaining net cover (33), described vacuum cleaner (29) and described dust collecting box (30) are all fixedly installed on the right side outer wall of described processing box (1), described vacuum cleaner (29) Located above the dust collection box (30), one end of the dust suction pipe (31) is fixedly connected to the suction end of the dust collector (29), and one end of the dust discharge pipe (32) is connected to the dust collector ( 29) is fixedly connected to the discharge end, the end of the dust discharge pipe (32) away from the vacuum cleaner (29) extends into the dust collection box (30), and the material retaining net cover (33) is fixedly installed on the processing On the right inner wall of the box (1) and above the crushing roller (3), the end of the dust suction pipe (31) away from the dust collector (29) extends into the material retaining net cover (33). 7. a kind of DMC raw material pulverizing dust suppression device according to claim 6 is characterized in that: the top of described dust collection box (30) offers air outlet, is fixedly installed with dust-proof net (34) in described air outlet ), the front side inner wall of the dust collection box (30) is provided with a cleaning port, and the front side outer wall of the dust collection box (30) is fixed with a cleaning door (35) by screws, and the cleaning door ( 35) It is compatible with the ash-cleaning port. 8. a kind of DMC raw material pulverizing according to claim 1 is characterized in that: collection box (36) is placed on the bottom inner wall of described processing box (1), the top of described collection box (36) It is an open structure, and the right inner wall of the processing box (1) is provided with a material intake, the right side of the collection box (36) extends into the material intake, and the right side of the processing box (1) A cover plate (37) is fixedly installed on the outer wall by screws, and the cover plate (37) is matched with the material taking port.