Water-based asphalt waterproof coating grinding device

Abstract

The application discloses a water-based asphalt waterproof coating grinding device, and particularly relates to the technical field of waterproof coating production, a water-based asphalt waterproof coating grinding device, which comprises a bottom frame, a rotor is arranged in the bottom frame, a stator is arranged at the top of the rotor, a grinding interval is formed between the bottom of the stator and the top of the rotor, the stator is divided into multiple parts and is capable of ascending and descending, a self-internal-to-external arranged relatively rotatable screening mesh cylinder which is connected with the top of the rotor is arranged in the middle of the stator, screening mesh holes are formed in the side wall of the screening mesh cylinder, the screening mesh holes are intersected, a feeding pipe which is used for separating the screening mesh holes and the top of the rotor is arranged on the inner side of the innermost layer screening mesh cylinder, the top of the stator is connected with the grinding interval, and a sorting chamber which is used for blowing air to the screening mesh cylinder is arranged in the bottom frame. Through the relative movement between the multiple parts of the stator and the relative rotation between the screening mesh cylinders, the interval of the grinding interval and the screening particle size can be adjusted, and the grinding is more fine under the screening of the screening mesh cylinders.

Description

Technical Field

[0001] This invention relates to the field of waterproof coating production technology, specifically to a grinding device for water-based asphalt waterproof coating. Background Technology

[0002] Water-based asphalt waterproof coating is an environmentally friendly waterproof material made with emulsified asphalt as the main film-forming substance, and added with water-based polymers (such as SBS, chloroprene latex, acrylates, etc.) and additives. It forms a continuous waterproof film after water evaporation, and features convenient construction, no solvent evaporation, and environmental friendliness. It is widely used in waterproofing projects for building roofs, basements, tunnels, etc. However, existing colloid mills, when grinding materials, have a completely unobstructed grinding zone between the stator and rotor. The material flows rapidly along this zone during grinding, resulting in a short residence time and insufficient grinding in a single pass.

[0003] The invention patent with publication number "CN115845960B" specifically discloses a preparation device for elastomer-modified bitumen waterproof coating. Although it increases the grinding time by setting a baffle plate in the grinding zone to obstruct the flow of material and thus slow down the flow speed of the material in the grinding zone, thereby increasing the grinding time of the material in one grinding cycle and making the grinding of the material more thorough, the grinding zone between the stator and rotor is relatively fixed. This makes it impossible to adjust the spacing of the grinding zone according to the required particle size when grinding different types of waterproof coatings, resulting in inconvenience in use. Furthermore, although it extends the grinding time, the waterproof coating is directly discharged after the sequential grinding, which cannot guarantee the relative grinding accuracy. Therefore, a water-based bitumen waterproof coating grinding device and method are proposed to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a grinding device for water-based asphalt waterproof coatings to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a grinding device for water-based asphalt waterproof coating, comprising a bottom frame, a rotor disposed inside the bottom frame, and a stator disposed on the top of the rotor.

[0006] A grinding zone is formed between the bottom of the stator and the top of the rotor. The stator is divided into multiple parts and can be raised and lowered.

[0007] The stator has a series of screen cylinders arranged from the inside out, which are connected to the top center of the rotor and can rotate relative to each other. The side walls of the screen cylinders have screen holes that intersect each other.

[0008] The innermost sieve cylinder has a feed pipe on its inner side that separates the sieve mesh openings from the top of the rotor.

[0009] The top of the stator can be connected to the grinding section.

[0010] The bottom frame has a sorting chamber inside which air can be blown from the outer ring at the bottom of the rotor to the screen cylinder.

[0011] Preferably, the first stator, the second stator, and the third stator are arranged sequentially from the outside to the inside, and the inner ring of the top of the first stator, the second stator, and the third stator is equipped with a linkage column, and the linkage column passes through the screen cylinder and is slidably connected to it. The screen cylinder is rotatably connected to the top of the bottom frame, and the top of the linkage column extends from the top of the screen cylinder and is equipped with a third outer toothed ring that can drive the linkage column to rise, fall, and rotate.

[0012] The stator includes the first stator, the second stator, and the third stator;

[0013] A top frame is mounted on the top of the bottom frame, and an installation chamber is formed between the top of the bottom frame and the interior of the top frame. A drive assembly capable of simultaneously driving the third external gear ring to rotate and rise is installed in the installation chamber. A first servo motor is mounted on the top of the top frame, and the output shaft of the first servo motor extends into the installation chamber and is fitted with a gear. The gear and the drive assembly are driven by meshing.

[0014] Preferably, the third external toothed rings connected to the top of the linkage columns arranged layer by layer from the inside out are arranged at intervals from top to bottom, and are located within the mounting cavity.

[0015] The drive assembly includes a lifting ring plate corresponding to the third external gear ring and a first external gear ring.

[0016] An annular groove is provided in the middle of the outer side of the drive assembly, and the first external toothed ring is installed on the inner side of the annular groove. The outer side of the third external toothed ring extends into the annular groove and meshes with the first external toothed ring. The top and bottom of the third external toothed ring are in contact with the inner wall of the annular groove.

[0017] Preferably, the drive assembly further includes a lifting guide column, a lifting slide bar, a connecting ring plate, and a second external gear ring.

[0018] The lifting guide column is installed on the top of the bottom frame, and has threads on the outer side of the middle section of the lifting guide column.

[0019] The lifting ring plate is threadedly connected to the threaded section on the lifting guide column.

[0020] The connecting ring plate is rotatably connected to the outer side of the bottom end of the lifting guide column, and the second external toothed ring is rotatably connected to the outer side of the top end of the lifting guide column.

[0021] The top end of the lifting slide rod is mounted on the bottom of the second external toothed ring, and the bottom end of the lifting slide rod is mounted on the top of the connecting ring plate. The lifting slide rod passes vertically through all the lifting ring plates, and the lifting ring plates can slide vertically on the lifting slide rod.

[0022] The outer side of the second external gear ring meshes with the outer side of the gear.

[0023] Preferably, the top end of the feed pipe passes through the installation chamber and exits from the top of the top frame. A material collection and discharge hood is installed on the outside of the feed pipe inside the installation chamber. The air inlet at the bottom of the material collection and discharge hood covers the inner side of the innermost screen cylinder and can communicate with the screen mesh. The air outlet of the material collection and discharge hood extends from the side wall of the top frame.

[0024] Preferably, the bottom inner bottom of the bottom frame has an air outlet communicating with the sorting chamber. An annular partition is installed around the outer edge of the air outlet on the bottom inner bottom of the bottom frame. The top of the annular partition is rotatably connected to the bottom of the rotor, and the annular partition has an opening connecting the sorting chamber to the outside. A bracket is installed on the inner wall of the annular partition, and a fan impeller is connected to the middle of the bracket via a bearing. The top of the fan impeller shaft is connected to the bottom of the rotor. A second servo motor is installed at the bottom of the bracket, and the output shaft of the second servo motor is connected to the bottom end of the fan impeller shaft.

[0025] The sorting chamber includes a first air supply chamber and a second air supply chamber.

[0026] The first air supply chamber is located at the bottom of the rotor, and the second air supply chamber is located at the top of the rotor and the first stator.

[0027] A gap is formed between the outer side of the rotor and the inner wall of the bottom frame, connecting the first air supply chamber and the second air supply chamber.

[0028] Preferably, the top of the first stator is provided with a first inwardly inclined portion that gradually slopes downward from the outside to the inside, and the bottom of the outer side of the screen cylinder is provided with intersecting return ports. The return ports are located at the bottom of the feed pipe, and the space between the top of the rotor and the bottom of the feed pipe is connected to the second air supply chamber through the return ports.

[0029] Preferably, the top of the first stator is provided with a second inner inclined portion that gradually slopes downward from the outside to the inside, and the top of the second stator is provided with a first outer inclined portion that gradually slopes downward from the inside to the outside. The bottom ends of the second inner inclined portion and the first outer inclined portion point to the gap between the first stator and the second stator.

[0030] Preferably, a grinding ring is provided in the gap between the first stator and the second stator, and a plurality of pillars are installed at the bottom of the grinding ring, with the bottom end of the pillars installed at the top of the rotor.

[0031] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0032] 1. This water-based asphalt waterproof coating grinding device, through the vertical movement between the first stator, the second stator and the third stator, can adjust the grinding interval according to specific usage requirements and form multiple grinding layers of different sizes. Furthermore, under the relative rotation between the screen cylinders, the screen aperture can be adjusted according to its use, thus making it more versatile.

[0033] 2. This water-based asphalt waterproof coating grinding device, through the cooperation between the drive component, the linkage column and the third external toothed ring, allows the first stator, the second stator and the third stator to be vertically adjusted while the screen cylinder can be rotated relative to each other, thus making its operation more convenient. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the structure of the present invention;

[0036] Figure 2 This is a schematic diagram of the structure of the present invention with the top frame and partial bottom frame removed;

[0037] Figure 3 This is a schematic diagram of the linkage column connection structure in this invention;

[0038] Figure 4 This is a schematic diagram of the connection between the screen cylinders in this invention;

[0039] Figure 5 This is a schematic diagram of the connection structure of the driving components in this invention;

[0040] Figure 6 This is a partial cross-sectional view of the structure in this invention;

[0041] Figure 7 This is a schematic diagram of the structure in cross-section of one embodiment of the present invention;

[0042] Figure 8 In this invention Figure 7 Schematic diagram of the structure at point A;

[0043] Figure 9 This is a schematic diagram of the structure in cross-section of another embodiment of the present invention;

[0044] Figure 10 In this invention Figure 9 A schematic diagram of the structure at point B.

[0045] In the diagram: 1. Bottom frame; 101. First air supply chamber; 102. Second air supply chamber; 2. Top frame; 201. Feed pipe; 202. Mounting chamber; 3. Material collection and discharge hood; 4. First servo motor; 5. Drive assembly; 501. Lifting guide column; 502. Lifting ring plate; 503. First external gear ring; 504. Lifting slide bar; 505. Gear; 506. Connecting ring plate; 507. Second external gear ring; 6. Through 601. Screen cylinder; 602. Screen mesh opening; 603. Linkage column; 604. Third external toothed ring; 605. Return port; 706. First stator; 701a. First internal inclined part; 701b. Second internal inclined part; 702. Second stator; 702a. First external inclined part; 703. Third stator; 8. Rotor; 901. Support; 902. Fan impeller; 10. Second servo motor; 11. Grinding ring; 12. Support column. Detailed Implementation

[0046] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0047] like Figure 1-6 As shown, the present invention provides a grinding device for water-based asphalt waterproof coating, including a bottom frame 1, a rotor 8 disposed inside the bottom frame 1, and a stator disposed on the top of the rotor 8.

[0048] A grinding zone is formed between the bottom of the stator and the top of the rotor 8. The stator is divided into multiple parts and can be raised and lowered.

[0049] The stator has a series of screen cylinders 6 arranged from the inside out and rotatable relative to each other, which are connected to the top center of the rotor 8. The side walls of the screen cylinders 6 are provided with screen holes 601, and the screen holes 601 on each layer of screen cylinders 6 intersect each other.

[0050] The innermost sieve cylinder 6 has a feed pipe 201 on its inner side that can separate the sieve mesh 601 from the top of the rotor 8.

[0051] The top of the stator can be connected to the grinding section.

[0052] The bottom frame 1 has a sorting chamber inside which air can be blown from the outer ring of the bottom of the rotor 8 to the screen cylinder 6.

[0053] It should be noted that the sieve cylinder 6 can be configured according to specific usage requirements. Here, the sieve mesh openings 601 overlap, meaning there are overlapping portions between them. These overlapping portions allow for ventilation and form the sieve holes. By rotating the sieve cylinders 6 relative to each other, the area of ​​the overlapping portions between the sieve mesh openings 601 can be changed. The larger the overlapping area, the larger the sieve hole diameter, and vice versa. Thus, by rotating the sieve cylinders 6 relative to each other, the hole diameter can be directly changed, adapting to various fineness levels of screening. Furthermore, by screening through the sieve cylinders 6, unqualified particles can be screened out. The selected material is then ground again to ensure its fineness. By raising and lowering the stator sections, the spacing of the grinding zones can be changed to accommodate different finenesses of grinding. The relative raising and lowering of the stator sections creates stepped grinding zones with gradually decreasing diameters, resulting in a progressive grinding effect and improved grinding efficiency. The adjustment of the outermost part of the stator is adapted to the adjustment of the part intersecting with the sieve mesh 601, ensuring that the fineness of the grinding corresponds to the fineness of the sieve. Furthermore, the wind can drive the ground waterproof coating material towards the sieve cylinder 6 for screening.

[0054] Furthermore, such as Figure 1-6 As shown, the stator includes a first stator 701, a second stator 702, and a third stator 703, which are arranged sequentially from the outside to the inside. A linkage column 602 is installed on the inner ring of the top of the first stator 701, the second stator 702, and the third stator 703. The linkage column 602 passes through the screen cylinder 6 and is slidably connected to it. The screen cylinder 6 is rotatably connected to the top of the bottom frame 1. The top of the linkage column 602 extends from the top of the screen cylinder 6 and is equipped with a third external toothed ring 603 that can drive the linkage column 602 to rise, fall, and rotate.

[0055] It should be noted that, driven by the linkage column 602, the first stator 701, the second stator 702, and the third stator 703 can move up and down relative to each other. Furthermore, the linkage column 602 can move up and down relative to the screen cylinder 6, while the screen cylinder 6 remains relatively vertically stationary. Under the rotation of the third external gear ring 603, the screen cylinders 6 can move up and down relative to each other. This movement of the third external gear ring 603, in turn, allows the linkage column 602 to drive the first stator 701, the second stator 702, and the third stator 703 to move up and down relative to each other.

[0056] Furthermore, it improves the synchronization and coordination of system actions as well as the efficiency of kinetic energy utilization.

[0057] Preferred, such as Figure 1-6 As shown, a top frame 2 is installed on the top of the bottom frame 1. An installation chamber 202 is formed between the top of the bottom frame 1 and the interior of the top frame 2. A drive assembly 5 that can drive the third external gear ring 603 to rotate and rise simultaneously is installed in the installation chamber 202. A first servo motor 4 is installed on the top of the top frame 2. The output shaft of the first servo motor 4 extends into the installation chamber 202 and is fitted with a gear 505. The gear 505 and the drive assembly 5 are driven by meshing.

[0058] It should be noted that, driven by the output shaft of the first servo motor 4, the gear 505 can rotate, and driven by the gear 505, the drive assembly 5 can drive the third external gear ring 603 to rotate and rise accordingly, so that the rising and falling of each component of the stator and the rotation between the screen cylinder 6 can be adjusted synchronously, making the operation more convenient.

[0059] Furthermore, such as Figure 1-6 As shown, the third external toothed rings 603 connected to the top of the linkage columns 602 arranged layer by layer from the inside out are arranged at intervals from top to bottom, and are located within the mounting chamber 202.

[0060] The drive assembly 5 includes a lifting ring plate 502 corresponding to the third external gear ring 603 and a first external gear ring 503.

[0061] An annular groove is provided in the middle of the outer side of the drive assembly 5, and the first external toothed ring 503 is installed on the inner side of the annular groove. The outer side of the third external toothed ring 603 extends into the annular groove and meshes with the first external toothed ring 503. The top and bottom of the third external toothed ring 603 are in contact with the inner wall of the annular groove.

[0062] It should be noted that the diameter of the first external gear ring 503 that meshes with the third external gear ring 603 of each layer can be different depending on the application. This allows the third external gear rings 603 to rotate relative to each other. Under the relative clamping action of the lifting ring plate 502, the movement of the lifting ring plate 502 can drive the third external gear ring 603 to rise and fall, so that the rising and falling and rotation of the third external gear ring 603 can be carried out simultaneously.

[0063] Furthermore, such as Figure 1-6 As shown, the drive assembly 5 also includes a lifting guide column 501, a lifting slide bar 504, a connecting ring plate 506, and a second external toothed ring 507.

[0064] The lifting guide column 501 is installed on the top of the bottom frame 1, and a thread is provided on the outer side of the middle section of the lifting guide column 501.

[0065] The lifting ring plate 502 is threadedly connected to the threaded section on the lifting guide column 501.

[0066] The connecting ring plate 506 is rotatably connected to the outer side of the bottom end of the lifting guide column 501, and the second external toothed ring 507 is rotatably connected to the outer side of the top end of the lifting guide column 501.

[0067] The top end of the lifting slide rod 504 is mounted on the bottom of the second external toothed ring 507, and the bottom end of the lifting slide rod 504 is mounted on the top of the connecting ring plate 506. The lifting slide rod 504 vertically passes through all the lifting ring plates 502, and the lifting ring plates 502 can slide vertically on the lifting slide rod 504.

[0068] The outer side of the second external toothed ring 507 meshes with the outer side of the gear 505.

[0069] It should be noted that the lifting guide column 501 is fixed relative to the bottom frame 1. When the lifting ring plate 502 rotates, it can be lifted and lowered accordingly under the action of its threads. It should be noted that the thread pitch of the threaded connection between each lifting ring plate 502 may not be the same. As a result, when the lifting ring plates 502 rotate relative to each other, their lifting strokes are different, which allows the lifting ring plates 502 to move vertically relative to each other. This allows the stator parts to move vertically relative to each other. Under the drive of the gear 505, the second external gear ring 507 can rotate, and through the transmission of the lifting slide rod 504, all the lifting ring plates 502 can rotate synchronously.

[0070] Specifically, such as Figure 1-6As shown, the top end of the feed pipe 201 passes through the mounting chamber 202 and exits from the top of the top frame 2. The feed pipe 201 is installed on the outer side of the mounting chamber 202 with a material collection and discharge hood 3. The air inlet at the bottom of the material collection and discharge hood 3 covers the inner side of the innermost screen cylinder 6 and can communicate with the screen hole 601. The air outlet of the material collection and discharge hood 3 extends from the side wall of the top frame 2.

[0071] It should be noted that the bottom frame 1 and the top frame 2 are modularly designed, which makes disassembly and maintenance easier. Under the guidance of the material collection and discharge hood 3, qualified waterproof coating particles can be collected through the material collection and discharge hood 3.

[0072] Specifically, such as Figure 1-6 As shown, the bottom of the bottom frame 1 has an air outlet communicating with the sorting chamber. An annular partition is installed around the outer edge of the air outlet on the bottom of the bottom of the bottom frame 1. The top of the annular partition is rotatably connected to the bottom of the rotor 8, and the annular partition has an opening connecting the sorting chamber to the outside. A bracket 901 is installed on the inner wall of the annular partition. A fan impeller 902 is connected to the middle of the bracket 901 via a bearing. The top of the fan impeller 902's shaft is connected to the bottom of the rotor 8. A second servo motor 10 is installed at the bottom of the bracket 901, and the output shaft of the second servo motor 10 is connected to the bottom end of the fan impeller 902's shaft.

[0073] The sorting chamber includes a first air supply chamber 101 and a second air supply chamber 102.

[0074] The first air supply chamber 101 is located at the bottom of the rotor 8, and the second air supply chamber 102 is located at the top of the rotor 8 and the first stator 701.

[0075] A gap is formed between the outer side of the rotor 8 and the inner wall of the bottom frame 1, connecting the first air supply chamber 101 and the second air supply chamber 102.

[0076] It should be noted that the outer ring of the bearing is fixed on the bracket 901, and the fan impeller 902 is installed on the inner ring of the bearing. Therefore, through the rotation of the bearing itself, the fan impeller 902 can rotate in a fixed position relative to the bracket 901. Under the drive of the output shaft of the second servo motor 10, the fan impeller 902 and the rotor 8 can rotate together. Through the gap between the first air chamber 101 and the second air chamber 102, the waterproof coating ground on the rotor 8 is blown, thereby enabling it to be air-separated and discharged.

[0077] On the one hand, such as Figure 1-8As shown, the top of the first stator 701 is provided with a first inwardly inclined part 701a that gradually slopes downward from the outside to the inside. The bottom of the outer side of the screen cylinder 6 is provided with a return port 604 that intersects with each other. The return port 604 is located at the bottom of the feed pipe 201. The space between the top of the rotor 8 and the bottom of the feed pipe 201 is connected to the second air supply chamber 102 through the return port 604.

[0078] It should be noted that, guided by the first inclined part 701a, the falling waterproof coating particles can fall from the return port 604 to the top of the rotor 8, and then be ground again in the grinding zone, so that the grinding is more thorough.

[0079] On the other hand, such as Figure 1-6 and Figure 9-10 As shown, the top of the first stator 701 is provided with a second inwardly inclined portion 701b that gradually slopes downward from the outside to the inside, and the top of the second stator 702 is provided with a first outwardly inclined portion 702a that gradually slopes downward from the inside to the outside. The bottom ends of the second inwardly inclined portion 701b and the first outwardly inclined portion 702a point towards the gap between the first stator 701 and the second stator 702.

[0080] A grinding ring 11 is provided in the gap between the first stator 701 and the second stator 702. A plurality of support columns 12 are installed at the bottom of the grinding ring 11, and the bottom end of the support column 12 is installed at the top of the rotor 8.

[0081] It should be noted that, under the combined guidance of the second inner inclined portion 701b and the first outer inclined portion 702a, the waterproof coating particles can move into the gap between the first stator 701 and the second stator 702. Driven by the rotor 8, the support column 12 can rotate, thereby driving the grinding ring 11 to rotate. This allows the waterproof coating particles passing through the gap between the first stator 701 and the second stator 702 to be ground, and then fall back into the grinding zone for further grinding.

[0082] In summary, when using this water-based asphalt waterproof coating grinding device, the waterproof coating to be ground is added to the top of the rotor 8 through the feed pipe 201. Then, according to the specific fineness required for grinding, the first servo motor 4 is started. Driven by the output shaft of the first servo motor 4, the gear 505 rotates, which in turn drives the second external gear ring 507 to rotate. Driven by the second external gear ring 507, the lifting slide bar 504 can rotate, which drives the first external gear ring 503 to rotate. Driven by the first external gear ring 503, the first external gear ring 503 can rotate, which in turn drives the third external gear ring 603 to rotate, which drives the screen cylinder 6 to rotate through the linkage column 602. Through the linkage columns 602 of each layer, the screen cylinders 6 rotate relative to each other. At this time, the relative position between the screen holes 601 changes, changing the degree of intersection between the screen holes 601, thereby changing the area of ​​the interconnected screen holes 601, and realizing the effect of adjusting the screen hole diameter.

[0083] By rotating the lifting ring plate 502 and engaging with the thread on the lifting guide post 501, the lifting ring plate 502 can be raised and lowered. The raising and lowering of the lifting ring plate 502 causes the third external toothed ring 603 to be raised and lowered relative to it, and the stator is driven to be raised and lowered by the linkage post 602 to adjust the spacing of the grinding zone.

[0084] Driven by the output shaft of the second servo motor 10, the fan impeller 902 is able to rotate, and driven by the rotating shaft of the fan impeller 902, the rotor 8 is able to rotate to grind the waterproof coating in the grinding zone, and under the action of the centrifugal force of its rotation, the waterproof coating is delivered to the outer ring of the rotor 8.

[0085] Under the action of the fan impeller 902 rotation, air is sent into the first air supply chamber 101 through the port, and air is sent upward from the gap between the inner wall of the bottom frame 1 and the rotor 8. The waterproof coating ground on the outside of the rotor 8 is transported into the second air supply chamber 102. After being screened by the screen cylinder 6, qualified particles enter the collection discharge hood 3 and are discharged, while unqualified particles fall back into the grinding area for further grinding.

[0086] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An aqueous asphalt waterproof coating grinding device, comprising a bottom frame (1), the inside of the bottom frame (1) is provided with a rotor (8), the top of the rotor (8) is provided with a stator, characterized in that: the bottom of the stator and the top of the rotor (8) form a grinding interval, the stator is divided into multiple parts and can be lifted, the middle of the stator is provided with a self-internal-to-external layer-by-layer arranged and relatively rotatable screen cylinder (6) which is connected with the middle top of the rotor (8), the side wall of the screen cylinder (6) is provided with screen holes (601) which are opened through, the screen holes (601) on each layer of screen cylinder (6) are intersected, the inner side of the innermost layer of screen cylinder (6) is provided with a feeding pipe (201) which can separate the screen holes (601) from the top of the rotor (8), the top of the stator can be connected with the grinding interval, the inside of the bottom frame (1) is provided with a sorting chamber which can blow air from the outer circle of the bottom of the rotor (8) to the screen cylinder (6); the stator comprises a first stator (701), a second stator (702) and a third stator (703); the first stator (701), the second stator (702) and the third stator (703) are arranged from outside to inside in sequence, the inner circle of the top of the first stator (701), the second stator (702) and the third stator (703) is installed with a linkage column (602), the linkage column (602) respectively passes through the screen cylinder (6) and is slidably connected with the screen cylinder (6), the screen cylinder (6) is rotatably connected to the top of the bottom frame (1), the top end of the linkage column (602) extends from the top of the screen cylinder (6) and is installed with a third outer gear ring (603) which can drive the linkage column (602) to lift and rotate. the top of the bottom frame (1) is installed with a top frame (2), the top of the bottom frame (1) and the inside of the top frame (2) form an installation chamber (202), the installation chamber (202) is installed with a driving assembly (5) which can drive the third outer gear ring (603) to rotate and lift at the same time, the top of the top frame (2) is installed with a first servo motor (4), the output shaft of the first servo motor (4) extends into the installation chamber (202) and is installed with a gear (505), the gear (505) and the driving assembly (5) are in gear transmission.

2. The water-based asphalt waterproof coating grinding device according to claim 1, characterized in that: the top ends of the linkage columns (602) which are arranged from inside to outside in layers are connected with the third outer gear rings (603) which are arranged from top to bottom in intervals and are in the installation chamber (202), 3. The water-based asphaltic waterproof coating grinding device according to claim 2, characterized in that: the driving assembly (5) comprises a lifting ring plate (502) and a first outer gear ring (503) which correspond to the third outer gear rings (603) one by one, the middle of the outside of the driving assembly (5) is provided with an annular groove, the first outer gear ring (503) is installed on the inside of the annular groove, the outside of the third outer gear ring (603) extends into the annular groove and is in gear with the first outer gear ring (503), and the top and the bottom of the third outer gear ring (603) are in contact with the inner wall of the annular groove. ​ 4. The water-based asphaltic waterproof coating grinding device according to claim 3, characterized in that: The driving assembly (5) further comprises a lifting guide column (501), a lifting slide rod (504), a connecting ring plate (506) and a second outer gear ring (507), The lifting guide column (501) is installed on the top of the bottom frame (1), and a thread is arranged on the outer side of the middle section of the lifting guide column (501), The lifting ring plate (502) is threadedly connected to the threaded section of the lifting guide column (501), The connecting ring plate (506) is rotatably connected to the outer side of the bottom end of the lifting guide column (501), and the second outer gear ring (507) is rotatably connected to the outer side of the top end of the lifting guide column (501), The top end of the lifting slide rod (504) is installed on the bottom of the second outer gear ring (507), the bottom end of the lifting slide rod (504) is installed on the top of the connecting ring plate (506), the lifting slide rod (504) vertically penetrates all the lifting ring plates (502), and the lifting ring plates (502) can vertically slide on the lifting slide rod (504), The outer side of the second outer gear ring (507) is in gear engagement with the outer side of the gear (505).

5. The water-based asphaltic waterproof coating grinding device according to claim 4, characterized in that: The top end of the feeding pipe (201) penetrates the installation chamber (202) and extends out of the top of the top frame (2), the feeding pipe (201) is externally installed in the installation chamber (202), a material collecting and discharging cover (3) is arranged on the feeding pipe (201), an air inlet of the material collecting and discharging cover (3) covers the inner side of the innermost screening mesh cylinder (6) and can be in communication with the screening mesh holes (601), and an air outlet of the material collecting and discharging cover (3) extends out of the side wall of the top frame (2).

6. The water-based asphaltic waterproof coating grinding device according to claim 5, characterized in that: An air inlet in communication with the sorting chamber is arranged on the inner bottom of the bottom frame (1), an annular partition plate is arranged on the outer circle of the air inlet on the inner bottom of the bottom frame (1), the top of the annular partition plate is rotatably connected to the bottom of the rotor (8), a through hole in communication with the sorting chamber and the outside is arranged on the annular partition plate, a support (901) is arranged on the inner wall of the annular partition plate, a fan impeller (902) is connected to the middle of the support (901) through a bearing, the top end of the rotating shaft of the fan impeller (902) is connected to the bottom of the rotor (8), a second servo motor (10) is arranged on the bottom of the support (901), and the output shaft of the second servo motor (10) is connected to the bottom end of the rotating shaft of the fan impeller (902), The sorting chamber comprises a first air supply chamber (101) and a second air supply chamber (102), The first air supply chamber (101) is arranged on the bottom of the rotor (8), and the second air supply chamber (102) is arranged on the top of the rotor (8) and the first stator (701), The outer side of the rotor (8) and the inner wall of the bottom frame (1) form a gap in communication between the first air supply chamber (101) and the second air supply chamber (102).

7. The water-based asphaltic waterproof coating mill according to claim 6, characterized in that: The top of the first stator (701) is provided with a first inner inclined part (701a) which gradually inclines downward from outside to inside, the bottom end of the outside of the screen mesh cylinder (6) is provided with a material return port (604) which intersects with each other, the material return port (604) is at the bottom of the feeding pipe (201), and the space between the top of the middle of the rotor (8) and the bottom of the feeding pipe (201) is connected with the second air supply chamber (102) through the material return port (604).

8. The water-based asphaltic waterproof coating grinding device according to claim 6, characterized in that: The top of the first stator (701) is provided with a second inner inclined part (701b) which gradually inclines downward from outside to inside, the top of the second stator (702) is provided with a first outer inclined part (702a) which gradually inclines downward from inside to outside, and the bottom end of the second inner inclined part (701b) and the first outer inclined part (702a) point to the gap between the first stator (701) and the second stator (702).

9. The water-based asphaltic waterproof coating grinding device according to claim 8, characterized in that: The gap between the first stator (701) and the second stator (702) is provided with a grinding ring (11), the bottom of the grinding ring (11) is provided with a plurality of support columns (12), and the bottom end of the support column (12) is installed on the top of the rotor (8).

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