CN112844743B - Preparation method of waterproof paint - Google Patents
Preparation method of waterproof paint Download PDFInfo
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- CN112844743B CN112844743B CN202110003166.9A CN202110003166A CN112844743B CN 112844743 B CN112844743 B CN 112844743B CN 202110003166 A CN202110003166 A CN 202110003166A CN 112844743 B CN112844743 B CN 112844743B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
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- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention relates to a preparation method of a waterproof coating, which uses multi-stage crushing equipment, wherein the multi-stage crushing equipment comprises a crushing cylinder, a primary crushing device and a multi-stage grinding device, the inner wall of the upper end of the crushing cylinder is provided with the primary crushing device, and the inner annular surface of the crushing cylinder is provided with the multi-stage grinding device; according to the invention, through three-stage different crushing processes, large-particle raw materials are crushed by beating, small-particle raw materials are crushed by extrusion and grinding, and then the waterproof coating is formed by fine grinding, so that the problem that raw materials with different particle sizes cannot be effectively crushed by the same crushing mode is solved; the invention improves the grinding effect of the raw materials by adjusting the reciprocating extrusion in the grinding process, and simultaneously solves the problem that the grinding effect and the material guiding speed are not compatible.
Description
Technical Field
The invention relates to the technical field of paint preparation, in particular to a preparation method of a waterproof paint.
Background
The waterproof coating material is a coating material which can prevent rainwater or groundwater from leaking out of a coating film formed by the coating material. The solid content means a solid proportion contained in the waterproof coating material. Since the coating film is formed by the solid content after the coating is applied, the solid content is somewhat closely related to the film thickness and the quality of the coating film, and the particle size of the solid determines the quality of the coating film.
Firstly, because the sizes of the particles of the raw materials of the waterproof coating are different, the raw materials with small particles buffer the raw materials to be crushed in the process of crushing the raw materials of the waterproof coating, and the raw material particles with different sizes are effectively crushed in different modes; secondly, carry out the in-process of fine grinding to raw materials granule, if the material clearance of putting between milling too big can cause the effect of milling not good, can not be broken raw materials granule to the size that needs, if the material clearance undersize of putting between milling can cause the material to be difficult to get into to influence crushing efficiency.
Disclosure of Invention
The invention aims to provide a preparation method of a waterproof coating, which has the advantages of bending processing, separation blanking and the like after cutting, thereby solving the problems.
A waterproof coating preparation method uses multi-stage crushing equipment, wherein the multi-stage crushing equipment comprises a crushing cylinder, a primary crushing device and a multi-stage grinding device, and is characterized in that: the process for manufacturing the waterproof coating by adopting the multistage crushing equipment further comprises the following steps:
s1, equipment checking: before the multi-stage crushing equipment is started, carrying out routine inspection on the equipment;
s2, primary crushing: screening the raw material of the waterproof coating through a primary crushing device, and crushing the raw material of large particles;
s3, multi-stage crushing: carrying out multistage grinding treatment on the primarily crushed raw materials by using a multistage grinding device;
s4, collecting and packaging: the ground raw materials are fed and collected, and the waterproof coating is packaged through a tank container;
a primary crushing device is arranged on the inner wall of the upper end of the crushing cylinder, and a multi-stage grinding device is arranged on the inner annular surface of the crushing cylinder; the primary crushing device is used for coarsely screening the coating raw materials, beating and crushing the residual large-particle coating, and the multistage grinding device is used for grinding fine particles in two stages, so that the coating particles are completely and uniformly ground.
The primary crushing device comprises a feeding hole, a driving motor, a rotating shaft, a screening frame, a rough separation screen, a crushing mechanism, a differential mechanism and a rotating column, wherein the feeding hole is formed in the upper end of the crushing cylinder; the coarse screen cloth sieves coating raw materials, stays the coarse screen cloth up end with the large granule raw materials, and driving motor drives the operation that crushing mechanism flies fast to pat shredding to the large granule raw materials, reduce the rotational speed of rotation post through differential mechanism, thereby drive multistage grinding device and continue to mill the raw materials of tiny granule.
The crushing mechanism comprises a rotating plate, a rotating ring frame, T-shaped sliding rods, auxiliary springs, a material pushing ring plate, a partition plate, an extrusion ring block and a crushed material beating plate, wherein the rotating plate is symmetrically arranged on the left side and the right side of the rotating shaft; the driving motor drives the crushed aggregates beating plate to rapidly beat large-particle raw materials to the inner end face of the material pushing ring plate and the isolation plate, so that the large-particle raw materials are broken, the driving motor drives the rotating ring frame to operate through driving the rotating plate, the material pushing ring plate is driven to feed inwards through the extrusion ring block, the materials are pushed to a beating position, and the auxiliary spring drives the material pushing ring plate to reset.
The multistage grinding device comprises a sliding column, a sliding block, a separating frame, a fine mesh screen, a material passing frame, a grinding mechanism, a fine grinding rotating block and a grinding ring frame, wherein the sliding groove is uniformly opened and closed on the inner annular surface of the grinding cylinder along the circumferential direction, the sliding column is arranged between the inner walls of the upper end and the lower end of the sliding groove, the sliding block is arranged on the outer annular surface of the separating frame along the circumferential direction, the sliding block is connected with the sliding column in a sliding mode, the fine mesh screen is arranged between the two side walls of the separating frame, the material passing frame is arranged on the inner annular surface of the grinding cylinder through a bearing in a rotating mode, the grinding mechanism is arranged on the outer wall of the rotating column, the fine grinding rotating block is arranged at the lower end of the rotating column, and the grinding ring frame is arranged on the inner annular surface of the grinding cylinder. The rotating column drives the grinding mechanism to operate, so that the raw materials are subjected to secondary grinding, the ground raw materials pass through a fine mesh screen and are subjected to tertiary grinding through the fine grinding rotating block and the grinding ring frame, and the coating raw materials are subjected to tertiary grinding, so that the waterproof coating is higher in effect.
As a preferable scheme of the invention, the material pushing ring plate is connected with the isolation plate in a sliding mode.
As a preferred scheme of the invention, the milling mechanism comprises a connecting frame, an annular clamping plate, a second material passing groove, a linkage unit, an arc-shaped rotating plate and a reciprocating ejector block, wherein the annular clamping plate is connected to the outer wall of the rotating column through the connecting frame, the second material passing groove is uniformly arranged at the lower end of the annular clamping plate along the circumferential direction, the linkage unit is arranged between the annular clamping plate and the rotating material passing frame, the arc-shaped rotating plate is arranged on the outer wall of the rotating column, and the reciprocating ejector block is arranged at the lower end of the separating frame. The position of milling is led to the coating raw materials through the second silo of crossing, the rotation post passes through the link and drives annular cardboard rotation, the annular cardboard passes through linkage unit and drives the rotation after the silo is sealed with the second and crosses the silo rotation, thereby mill the coating raw materials of fine mesh screen up end, the rotation post drives the arc and changes the board rotation, make reciprocal kicking block drive the separation frame and upwards feed and extrude waterproof coating and mill, thereby the problem that effect and guide speed of milling are not concurrently solved.
As a preferred scheme of the invention, the linkage unit comprises a feeding arc groove, a feeding rotating block and an auxiliary spring, the feeding arc groove is uniformly arranged at the lower end of the rotary material passing frame along the circumferential direction, the feeding rotating block is arranged at the upper end of the annular clamping plate, the feeding rotating block is connected with the feeding arc groove in a sliding mode, and the auxiliary spring is arranged at the right end of the feeding rotating block. The annular cardboard is through feeding the commentaries on classics piece and feeding the cooperation of arc groove and drive to rotate the material frame and rotate, and auxiliary spring makes and makes annular cardboard drive the rotation after the material groove is sealed with the second again and crosses the material frame and rotate.
As a preferable scheme of the invention, the outer wall of the crushing cylinder is provided with a feed opening.
In a preferred embodiment of the present invention, the mesh number of the fine mesh screen is larger than that of the coarse mesh screen.
(III) advantageous effects
1. According to the invention, through three-stage different crushing processes, large-particle raw materials are crushed by beating, small-particle raw materials are crushed by extrusion and grinding, and then the waterproof coating is formed by fine grinding, so that the problem that raw materials with different particle sizes cannot be effectively crushed by the same crushing mode is solved; the invention improves the grinding effect of the raw materials by adjusting the reciprocating extrusion in the grinding process, and simultaneously solves the problem that the grinding effect and the material guiding speed are not compatible.
2. The coating raw materials are guided to a grinding position through the second material passing groove, the rotating column drives the annular clamping plate to rotate through the connecting frame, the annular clamping plate drives the rotating material passing frame to rotate after the second material passing groove is sealed through the linkage unit, so that the coating raw materials on the upper end surface of the fine-mesh sieve are ground, the rotating column drives the arc-shaped rotating plate to rotate, the reciprocating ejector block drives the separating frame to feed upwards to extrude and grind the waterproof coating, and the problem that the grinding effect and the material guiding speed are not compatible is solved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a process flow diagram of the present invention for producing a waterproof coating material;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2 in accordance with the present invention;
FIG. 4 is a cross-sectional view taken along section B-B of FIG. 3 in accordance with the present invention;
FIG. 5 is a cross-sectional view taken at section C-C of FIG. 3 in accordance with the present invention;
fig. 6 is a cross-sectional view taken along line D-D of fig. 3 in accordance with the present invention.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
As shown in fig. 1 to 6, a method for preparing a waterproof coating material uses a multi-stage crushing apparatus, the multi-stage crushing apparatus includes a crushing cylinder 1, a primary crushing device 2 and a multi-stage milling device 3, and a process for preparing a waterproof coating material by using the multi-stage crushing apparatus further includes the following steps:
s1, equipment checking: before the multi-stage crushing equipment is started, carrying out routine inspection on the equipment;
s2, primary crushing: screening the raw material of the waterproof coating through a primary crushing device 2, and crushing the raw material of large particles;
s3, multi-stage crushing: carrying out multi-stage grinding treatment on the raw materials after primary crushing by using a multi-stage grinding device 3;
s4, collecting and packaging: the ground raw materials are fed and collected, and the waterproof coating is packaged through a tank container;
a primary crushing device 2 is arranged on the inner wall of the upper end of the crushing cylinder 1, and a multi-stage grinding device 3 is arranged on the inner annular surface of the crushing cylinder 1; the primary crushing device 2 coarsely sieves the coating raw material, and performs beating and crushing treatment on the residual large-particle coating, and the multistage grinding device 3 performs two-stage grinding on fine particles, so that the coating particles are completely and uniformly ground.
The primary crushing device 2 comprises a feeding hole 21, a driving motor 22, a rotating shaft 23, a screening frame 24, a rough separation screen mesh 25, a crushing mechanism 26, a differential mechanism 27 and a rotating column 28, wherein the feeding hole 21 is formed in the upper end of the crushing barrel 1, the driving motor 22 is arranged on the inner wall of the upper end of the crushing barrel 1 through a motor base, the rotating shaft 23 is arranged at the lower end of the output end of the driving motor 22, the screening frame 24 is arranged on the inner annular surface of the crushing barrel 1, a first material passing groove is formed in the upper end of the screening frame 24, the rough separation screen mesh 25 is arranged between two side walls of the first material passing groove, the crushing mechanism 26 is arranged on the outer wall of the rotating shaft 23, the differential mechanism 27 is arranged on the inner annular surface of the crushing barrel 1 through a support, the rotating shaft 23 is connected with the differential mechanism 27 through a coupler, and the rotating column 28 is arranged at the lower end of the output end of the differential mechanism 27; coarse screen cloth 25 sieves the coating raw materials, leaves the large granule raw materials at coarse screen cloth 25 up end, and driving motor 22 drives the operation of crushing mechanism 26 flying fast to beat shredding process to the large granule raw materials, reduce the rotational speed of rotation post 28 through differential 27, thereby drive multistage grinding device 3 and continue to mill the raw materials of small granule.
The crushing mechanism 26 comprises a rotating plate 261, a rotating ring frame 262, a T-shaped sliding rod 263, a return spring 264, a material pushing ring plate 265, a partition plate 266, an extrusion ring block 267 and a crushed material beating plate 268, wherein the rotating plate 261 is symmetrically arranged on the left side surface and the right side surface of the rotating shaft 23, the rotating ring frame 262 is arranged at the lower end of the rotating plate 261, an auxiliary ring groove is formed in the inner ring surface of the crushing barrel 1, the T-shaped sliding rod 263 is uniformly arranged on the inner ring surface of the auxiliary ring groove along the circumferential direction in a sliding mode, the return spring 264 is arranged on the inner wall of the outer end of the T-shaped sliding rod 263, the material pushing ring plate 265 is arranged at the inner end of the T-shaped sliding rod 263, the partition plate 266 is uniformly arranged on the inner wall of the lower end of the auxiliary ring groove along the circumferential direction, the extrusion ring block 267 is uniformly arranged on the inner ring surface of the rotating ring frame 262 along the circumferential direction, and the crushed material beating plate 268 is arranged on the outer wall of the rotating shaft 23; the pusher ring plate 265 is slidably connected to the isolation plate 266. The driving motor 22 drives the material beating plate 268 to flap large-particle raw materials to the inner end faces of the material pushing ring plate 265 and the isolation plate 266 quickly, so that the large-particle raw materials are crushed, the driving motor 22 drives the rotating ring frame 262 to operate by driving the rotating plate 261, the material pushing ring plate 265 is driven to feed inwards by extruding the ring block 267, the materials are pushed to a beating position, and the reset spring 264 drives the material pushing ring plate 265 to reset.
The multistage grinding device 3 comprises a sliding column 31, a sliding block 32, a separating frame 33, a fine mesh screen 34, a rotary material passing frame 35, a grinding mechanism 36, a fine grinding rotary block 37 and a grinding ring frame 38, wherein a sliding groove is uniformly opened and closed along the circumferential direction on the inner ring surface of the grinding cylinder 1, the sliding column 31 is arranged between the inner walls of the upper end and the lower end of the sliding groove, the sliding block 32 is arranged on the outer ring surface of the separating frame 33 along the circumferential direction, the sliding block 32 is connected with the sliding column 31 in a sliding mode, the fine mesh screen 34 is arranged between the two side walls of the separating frame 33, the rotary material passing frame 35 is arranged on the inner ring surface of the grinding cylinder 1 through a bearing, the grinding mechanism 36 is arranged on the outer wall of the rotary column 28, the fine grinding rotary block 37 is arranged at the lower end of the rotary column 28, and the grinding ring frame 38 is arranged on the inner ring surface of the grinding cylinder 1. The grinding mechanism 36 is driven to operate by the rotating column 28, so that the raw materials are subjected to secondary grinding, the ground raw materials pass through the fine mesh screen 34 and then are subjected to tertiary grinding by the fine grinding rotating block 37 and the grinding ring frame 38, so that the raw materials of the coating are subjected to tertiary grinding, and the waterproof coating effect is better.
The milling mechanism 36 comprises a connecting frame 361, an annular clamping plate 362, a second passing trough 363, a linkage unit 364, an arc-shaped rotating plate 365 and a reciprocating ejector block 366, the outer wall of the rotating column 28 is connected with the annular clamping plate 362 through the connecting frame 361, the second passing trough 363 is uniformly arranged at the lower end of the annular clamping plate 362 along the circumferential direction, the linkage unit 364 is arranged between the annular clamping plate 362 and the rotating frame 35, the arc-shaped rotating plate 365 is arranged on the outer wall of the rotating column 28, and the reciprocating ejector block 366 is arranged at the lower end of the separating frame 33. The position of milling is led to the coating raw materials through the second silo 363 of crossing, the rotation post 28 drives annular cardboard 362 through link 361 and rotates, annular cardboard 362 passes through linkage unit 364 with the second and passes the sealed back drive of silo 363 and rotate the work or material rest 35 and rotate, thereby mill the coating raw materials of fine mesh screen 34 up end, rotation post 28 drives arc commentaries on classics board 365 and rotates, make reciprocal kicking block 366 drive separator 33 upward feed and extrude waterproof coating and mill, thereby the problem that effect of milling and guide speed do not have concurrently has been solved.
The linkage unit 364 comprises a feeding arc groove 3641, a feeding rotating block 3642 and an auxiliary spring 3643, the feeding arc groove 3641 is uniformly arranged at the lower end of the rotating material passing frame 35 along the circumferential direction, the feeding rotating block 3642 is arranged at the upper end of the annular clamping plate 362, the feeding rotating block 3642 is connected with the feeding arc groove 3641 in a sliding mode, and the auxiliary spring 3643 is arranged at the right end of the feeding rotating block 3642. The circular clamping plate 362 is matched with the feeding rotary block 3642 and the feeding arc groove 3641 to drive the rotary material passing frame 35 to rotate, and the auxiliary spring 3643 drives the circular clamping plate to seal the second material passing groove 363 and then drive the rotary material passing frame 35 to rotate.
The outer wall of the crushing barrel 1 is provided with a feed opening.
The mesh number of the fine mesh sieve 34 is larger than that of the coarse mesh sieve 25.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A waterproof paint preparation method uses a multi-stage crushing device which comprises a crushing barrel (1), a primary crushing device (2) and a multi-stage grinding device (3), and is characterized in that: the process for manufacturing the waterproof coating by adopting the multistage crushing equipment further comprises the following steps:
s1, equipment checking: before the multi-stage crushing equipment is started, carrying out routine inspection on the equipment;
s2, primary crushing: screening the raw material of the waterproof coating through a primary crushing device (2), and crushing the raw material of large particles;
s3, multi-stage crushing: carrying out multi-stage grinding treatment on the raw materials after primary crushing by using a multi-stage grinding device (3);
s4, collecting and packaging: the ground raw materials are fed and collected, and the waterproof coating is packaged through a tank container;
a primary crushing device (2) is arranged on the inner wall of the upper end of the crushing cylinder (1), and a multi-stage grinding device (3) is arranged on the inner annular surface of the crushing cylinder (1);
the primary crushing device (2) comprises a feeding port (21), a driving motor (22), a rotating shaft (23), a screening frame (24), a rough separation screen (25), a crushing mechanism (26), a differential mechanism (27) and a rotating column (28), wherein the feeding port (21) is formed in the upper end of the crushing cylinder (1), the driving motor (22) is arranged on the inner wall of the upper end of the crushing cylinder (1) through a motor base, the rotating shaft (23) is arranged at the lower end of the output end of the driving motor (22), the screening frame (24) is arranged on the inner annular surface of the crushing cylinder (1), a first material passing groove is formed in the upper end of the screening frame (24), the rough separation screen (25) is arranged between the two side walls of the first material passing groove, the crushing mechanism (26) is arranged on the outer wall of the rotating shaft (23), the differential mechanism (27) is arranged on the inner annular surface of the crushing cylinder (1) through a support, and the rotating shaft (23) is connected with the differential mechanism (27) through a coupler, the lower end of the output end of the differential (27) is provided with a rotating column (28);
the crushing mechanism (26) comprises a rotating plate (261), a rotating ring frame (262), T-shaped sliding rods (263), return springs (264), a material pushing ring plate (265), a partition plate (266), an extrusion ring block (267) and a crushed material beating plate (268), wherein the rotating plate (261) is symmetrically arranged on the left side surface and the right side surface of a rotating shaft (23), the rotating ring frame (262) is arranged at the lower end of the rotating plate (261), an auxiliary ring groove is formed in the inner ring surface of the crushing barrel (1), the T-shaped sliding rods (263) are uniformly arranged on the inner ring surface of the auxiliary ring groove along the circumferential direction in a sliding mode, the return springs (264) are arranged on the inner wall of the outer end of the T-shaped sliding rods (263), the material pushing ring plate (265) is arranged at the inner end of the T-shaped sliding rods (263), the partition plate (266) is uniformly arranged on the inner wall of the lower end of the auxiliary ring groove along the circumferential direction, the extrusion ring block (267) is uniformly arranged on the inner ring surface of the rotating ring frame (262) along the circumferential direction, the outer wall of the rotating shaft (23) is provided with a crushed aggregate beating plate (268);
the multi-stage grinding device (3) comprises a sliding column (31), a sliding block (32), a separating frame (33), a fine mesh screen (34), a rotary material passing frame (35), a grinding mechanism (36), a fine grinding rotating block (37) and a grinding ring frame (38), the grinding machine comprises a grinding cylinder (1), sliding grooves are uniformly opened and closed along the circumferential direction on the inner annular surface of the grinding cylinder (1), sliding columns (31) are arranged between the inner walls of the upper end and the lower end of each sliding groove, sliding blocks (32) are arranged on the outer annular surface of a separation frame (33) along the circumferential direction, the sliding blocks (32) are connected with the sliding columns (31) in a sliding mode, fine meshes (34) are arranged between the two side walls of the separation frame (33), a material passing frame (35) is arranged on the inner annular surface of the grinding cylinder (1) through bearings, a grinding mechanism (36) is arranged on the outer wall of each rotating column (28), fine grinding blocks (37) are arranged at the lower ends of the rotating columns (28), and a grinding annular frame (38) is arranged on the inner annular surface of the grinding cylinder (1).
2. The method for preparing a waterproof coating according to claim 1, wherein: the material pushing ring plate (265) is connected with the isolation plate (266) in a sliding mode.
3. The method for preparing a waterproof coating according to claim 1, wherein: grinding mechanism (36) including link (361), annular cardboard (362), silo (363), linkage unit (364), arc commentaries on classics board (365) and reciprocal kicking block (366) are crossed to the second, be connected with annular cardboard (362) through link (361) on rotating post (28) outer wall, silo (363) are crossed to the second evenly set up in annular cardboard (362) lower extreme along circumference, annular cardboard (362) and rotate and be provided with linkage unit (364) between work or material rest (35), be provided with arc commentaries on classics board (365) on rotating post (28) outer wall, separator (33) lower extreme is provided with reciprocal kicking block (366).
4. The method for preparing a waterproof coating according to claim 3, wherein: the linkage unit (364) comprises a feeding arc groove (3641), a feeding rotating block (3642) and an auxiliary spring (3643), the feeding arc groove (3641) is uniformly arranged at the lower end of the rotary material passing frame (35) along the circumferential direction, the feeding rotating block (3642) is arranged at the upper end of the annular clamping plate (362), the feeding rotating block (3642) is connected with the feeding arc groove (3641) in a sliding mode, and the auxiliary spring (3643) is arranged at the right end of the feeding rotating block (3642).
5. The method for preparing a waterproof coating according to claim 1, wherein: the outer wall of the crushing barrel (1) is provided with a feed opening.
6. The method for preparing the waterproof coating according to claim 1, wherein the method comprises the following steps: the mesh number of the fine mesh screen (34) is larger than that of the coarse screen (25).
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| CN202110003166.9A CN112844743B (en) | 2021-01-04 | 2021-01-04 | Preparation method of waterproof paint |
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| CN202110003166.9A CN112844743B (en) | 2021-01-04 | 2021-01-04 | Preparation method of waterproof paint |
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