Preparation process of waterproof coating
Technical Field
The invention relates to the technical field of coatings, in particular to a preparation process of a waterproof coating.
Background
The waterproof film formed by curing the waterproof coating has certain extensibility, elastoplasticity, crack resistance, impermeability and weather resistance, has better waterproof performance compared with common coatings, can play roles in waterproofing, seepage prevention and protection, has good temperature adaptability, is simple and convenient to operate, and is easy to maintain and repair, so that the waterproof coating is widely applied.
The waterproof coating comprises a powder part and a liquid material part, wherein the raw materials need to be fully stirred in the powder production and preparation process, the performance of the waterproof coating is directly influenced by the quality of the stirring effect, and some problems still exist in the stirring process of the powder material at present:
(1) the powder has generally lighter weight, and can be scattered and adhered to the stirring equipment in the stirring process, if the powder adhered to the stirring equipment is not cleaned in time, not only can raw materials be wasted, but also parts in the stirring equipment can be seriously abraded, the service life of the stirring equipment is shortened, in addition, the mounting positions of parts of the stirring shaft, the stirring blade and the like of the stirring equipment which are in direct contact with the powder are fixed, the action range is limited, and the powder at each position cannot be fully stirred;
(2) need filter the powder after the stirring, the powder that meets the requirements just can get into next process flow, and accomplishes through the sieve now to the screening of powder mostly, and the sieve often is in fixed state in the screening process, and the powder that does not fall down easily produces on the sieve and piles up, has influenced the screening effect.
In order to solve the problems, the invention provides a preparation process of a waterproof coating.
Disclosure of Invention
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
the utility model provides a waterproof coating preparation technology, its has used a powder agitated vessel, and this powder agitated vessel includes casing, one-level agitating unit, second grade agitating unit and sieving mechanism, and the concrete process flow when adopting above-mentioned powder agitated vessel to stir waterproof coating's powder is as follows:
s1, primary stirring: primarily stirring the proportioned powder by a primary stirring device;
s2, screening, namely screening the powder processed by the S1 through a screening device, wherein the powder with the granularity meeting the requirement falls into a secondary stirring device from the screening device;
s3, stirring again: the powder falling from the screening device is stirred again by a secondary stirring device to prepare a finished product of the waterproof coating powder;
s4, discharging: taking out the finished product of the waterproof coating powder from the equipment, and performing split charging treatment;
a primary stirring device, a screening device and a secondary stirring device are sequentially arranged in the shell from top to bottom, a feed inlet is formed in the top end of the shell, a discharge outlet is formed in the bottom end of the shell, and four lifting ports are uniformly formed in the middle of the shell along the circumferential direction of the shell;
the first-stage stirring device comprises a stirring motor, a stirring shaft, a transverse stirring rod, a vertical stirring rod, a first connecting rod, a second connecting rod and an extrusion ring, wherein the stirring motor is arranged at the top end of the shell through a motor base, an output shaft of the stirring motor is connected with the upper end of the stirring shaft through a coupler, the lower end of the stirring shaft is arranged at the bottom end of the shell through a bearing, the transverse stirring rods are uniformly arranged on the side wall of the stirring shaft along the circumferential direction of the stirring shaft, the transverse stirring rods are divided into two groups up and down, the number of the transverse stirring rods in each group is four, the outer sides of the transverse stirring rods are tightly attached to the inner wall of the shell, the vertical stirring rods are uniformly arranged between the transverse stirring rods which are oppositely arranged up and down in a sliding fit mode from left to right, the vertical stirring rods which are adjacent to the left and, the other end of the second connecting rod is arranged on the side wall of the stirring shaft, the second connecting rod is of a telescopic structure, a spring is arranged in the second connecting rod, the outer side of the first connecting rod positioned at the outermost side of the shell is connected with the inner wall of the extrusion ring in a sliding fit mode, the extrusion ring is arranged on the inner wall of the shell, and the inner wall of the extrusion ring is of a wave-shaped structure; the powder is stirred through the combined action of the transverse stirring rods and the vertical stirring rods which are vertically and alternately arranged, the stirring uniformity of the powder can be effectively improved, the vertical stirring rods can reciprocate along with the stirring shaft, the reciprocating linear motion can be performed on the transverse stirring rods under the extrusion action of the extrusion ring, the stirring range is further expanded, the powder adhered to the transverse stirring rods can be wiped down, and a certain cleaning effect is achieved.
The screening device comprises four sieve plates, supporting springs, a material blocking plate, a lifting frame, a lifting cylinder, a mounting plate and a connecting spring, wherein the four sieve plates are uniformly distributed along the circumferential direction of the stirring shaft, the outer side of each sieve plate is connected with the inner wall of the shell in a sliding fit manner, the inner side of each sieve plate is connected with the side wall of the stirring shaft in a sliding fit manner, the upper end and the lower end of the outer side of the sieve plate are connected with the inner wall of the shell through supporting springs, a material blocking plate is arranged at the lower end of the sieve plate, the inner side of the material blocking plate is connected with the side wall of the stirring shaft in a sliding fit mode, the outer side of the material blocking plate is connected with one end of a lifting frame, the lifting frame is installed in a lifting port in a sliding fit mode, the other end of the lifting frame is connected with the telescopic end of a lifting cylinder, the fixed end of the lifting cylinder is installed at the lower end of a mounting plate, the; in the initial period of stirring work just beginning, the terminal surface is hugged closely under putty frame up end and the sieve, the powder can't fall through the sieve this moment, after thirty minutes is filled to the churning time, drive crane downstream through the lift cylinder, make the gap increase between putty board and the sieve, leave enough space for the whereabouts of powder, in the screening process, because the sieve is connected with the casing through supporting spring, consequently, the sieve can produce and rock from top to bottom, make the powder distribution more even.
The vertical stirring rod comprises a straight rod and bristles, sliding holes are symmetrically formed in the middle of the straight rod up and down, the bristles are uniformly mounted on the inner wall of each sliding hole, the top ends of the bristles are attached to the outer wall of the transverse stirring rod, the straight rod is divided into a front part and a rear part which are connected through bolts, clamping grooves are formed in the middle of the front part and the rear part of the straight rod, clamping blocks are arranged in the clamping grooves, the clamping blocks are connected with a first connecting rod in a clamping mode, and the bristles are uniformly arranged on the side wall of the straight rod, closest to the; the brush hair can carry out the in-process of side-to-side motion to horizontal puddler at vertical puddler relative horizontal puddler and clean horizontal puddler, cleans the (mixing) shaft lateral wall at rotatory in-process, and the staff later stage only needs to clear up the brush hair of vertical puddler, and need not to clear up whole device.
Preferably, the putty board includes base plate and putty pole, and the base plate shape size all is the same with the sieve size, installs the putty pole on the base plate, and the side-opening of putty pole is equipped with the feed opening, and the feed opening aperture is the trend that down reduces gradually from the last, and putty pole position and sieve mesh position one-to-one, and putty pole height equals with the sieve mesh height, when terminal surface was hugged closely under base plate up end and the sieve mutually, putty pole lateral wall hugs closely mutually with the sieve mesh inner wall, when driving the putty board downstream through the lift cylinder, make the putty pole take out the sieve mesh completely after, through preliminary stirring's powder alright fall into in the second grade agitating unit through the feed opening.
Preferably, the lower end of the lifting port is provided with an auxiliary groove communicated with the lifting port, a baffle is arranged in the auxiliary groove in a sliding fit mode, the upper end of the baffle is connected with the lower end of the lifting frame, and the baffle can prevent powder from overflowing from the lifting port in the up-and-down moving process of the lifting frame.
Preferably, the upper end face of the sieve plate is of a cambered surface structure with the height gradually reduced from inside to outside, and the lower end face of a vertical stirring rod in the primary stirring device is attached to the upper end face of the sieve plate; when vertical puddler carries out horizontal linear motion under the extrusion of extrusion ring, the contact position of vertical puddler and sieve up end changes, when vertical puddler contacts with the higher department of sieve up end, will produce decurrent pressure to the sieve, when vertical puddler contacts with the lower department of sieve up end, under supporting spring's elastic force effect, one section distance of sieve upward movement, reach from this and drive the purpose that the sieve shakes from top to bottom in stirring and screening process, make the powder can distribute more evenly on the sieve.
Preferably, the second-stage stirring device is the same as the first-stage stirring device except that the stirring motor and the stirring shaft are not arranged and the vertical stirring rod is not attached to the sieve plate.
Preferably, the shell is divided into a top plate, a bottom plate and a main body, the top plate and the bottom plate are both mounted on the main body through bolts, and the top plate or the bottom plate is detached to facilitate overhauling of the device in the shell.
The invention has the beneficial effects that:
1. according to the invention, the stirring rods which are transversely and vertically staggered are arranged to stir the powder, the vertical stirring rods can do left-right linear motion relative to the transverse stirring rods in the stirring process, the stirring range is expanded, the transverse stirring rods can be cleaned, and in addition, the screening device is driven to vertically shake in the stirring and screening processes, so that the distribution uniformity of the powder is improved, and the purpose of improving the stirring and screening effects is achieved.
2. According to the primary stirring device and the secondary stirring device, the powder is stirred through the combined action of the transverse stirring rods and the vertical stirring rods which are vertically staggered, so that the stirring uniformity of the powder can be effectively improved, the vertical stirring rods can reciprocate along with the stirring shaft and can reciprocate in a straight line motion left and right relative to the transverse stirring rods under the extrusion action of the extrusion rings, the stirring range is further expanded, the powder adhered to the transverse stirring rods can be wiped, and a certain cleaning effect is achieved.
3. According to the screening device provided by the invention, the size of the gap between the screen plate and the material blocking plate is adjusted through the lifting cylinder so as to control whether powder can fall off from the screen plate, and in the screening process after primary stirring, the screen plate can vertically shake under the combined action of the elastic force of the supporting spring and the extrusion force of the vertical stirring rod, so that the powder is more uniformly distributed.
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;
FIG. 2 is a front sectional view of the powder stirring apparatus of the present invention;
FIG. 3 is a plan view of a partial structure of a primary stirring apparatus of the present invention;
FIG. 4 is a top view of the present invention between the housing, the agitator shaft, the screen plate and the blanking bar;
FIG. 5 is an enlarged view of the portion of FIG. 2 from the A direction;
FIG. 6 is an enlarged view of the portion of FIG. 2 from the B direction;
fig. 7 is a right side sectional view of the vertical stirring rod, the horizontal stirring rod and the first connecting rod of 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 7, a waterproof paint preparation process uses a powder stirring device, the powder stirring device includes a housing 1, a primary stirring device 2, a secondary stirring device 3 and a screening device 4, and the specific process flow when the powder stirring device is used for stirring and processing the powder of the waterproof paint is as follows:
s1, primary stirring: preliminarily stirring the proportioned powder by using a primary stirring device 2;
s2, screening, namely screening the powder processed by the S1 through a screening device 4, wherein the powder with the granularity meeting the requirement falls into a secondary stirring device 3 from the screening device 4;
s3, stirring again: the powder falling from the screening device 4 is stirred again through the second-stage stirring device 3 to prepare a finished product of the waterproof coating powder;
s4, discharging: taking out the finished product of the waterproof coating powder from the equipment, and performing split charging treatment;
a primary stirring device 2, a screening device 4 and a secondary stirring device 3 are sequentially arranged in the shell 1 from top to bottom, a feed inlet is formed in the top end of the shell 1, a discharge outlet is formed in the bottom end of the shell 1, and four lifting ports are uniformly formed in the middle of the shell 1 along the circumferential direction of the shell;
casing 1 divide into roof, bottom plate and main part triplex, and the roof all passes through the bolt mounting with the bottom plate in the main part, is convenient for overhaul the device in casing 1 after dismantling roof or bottom plate.
The primary stirring device 2 comprises a stirring motor 21, a stirring shaft 22, a transverse stirring rod 23, vertical stirring rods 24, a first connecting rod 25, a second connecting rod 26 and an extrusion ring 27, wherein the stirring motor 21 is installed at the top end of the shell 1 through a motor base, an output shaft of the stirring motor 21 is connected with the upper end of the stirring shaft 22 through a coupler, the lower end of the stirring shaft 22 is installed at the bottom end of the shell 1 through a bearing, the transverse stirring rods 23 are evenly installed on the side wall of the stirring shaft 22 along the circumferential direction of the stirring shaft, the transverse stirring rods 23 are divided into two groups, the number of the transverse stirring rods 23 in each group is four, the outer sides of the transverse stirring rods 23 are tightly attached to the inner wall of the shell 1, the vertical stirring rods 24 are evenly installed between the transverse stirring rods 23 which are oppositely arranged up and down from left to right through a sliding fit mode, the vertical stirring rods 24 which are adjacent to the left, the inner side of the first connecting rod 25 is tightly attached to one end of the second connecting rod 26, the other end of the second connecting rod 26 is installed on the side wall of the stirring shaft 22, the second connecting rod 26 is of a telescopic structure, a spring is arranged in the second connecting rod 26, the outer side of the first connecting rod 25 located on the outermost side of the shell 1 is connected with the inner wall of the extrusion ring 27 in a sliding fit mode, the extrusion ring 27 is installed on the inner wall of the shell 1, and the inner wall of the extrusion ring 27 is of a wave-shaped structure; the combined action of the transverse stirring rods 23 and the vertical stirring rods 24 which are vertically and alternately arranged stirs the powder, the stirring uniformity of the powder can be effectively improved, the vertical stirring rods 24 can reciprocate along with the stirring shaft 22, the reciprocating linear motion can be performed on the transverse stirring rods 23 under the extrusion action of the extrusion ring 27, the stirring range is further expanded, the powder adhered to the transverse stirring rods 23 can be wiped down, and a certain cleaning effect is achieved.
The vertical stirring rod 24 comprises a straight rod 241 and bristles 242, sliding holes are symmetrically formed in the middle of the straight rod 241 in an up-down mode, the bristles 242 are uniformly installed on the inner wall of each sliding hole, the top ends of the bristles 242 are attached to the outer wall of the transverse stirring rod 23, the straight rod 241 is divided into a front part and a rear part, the front part and the rear part are connected through bolts, clamping grooves are formed in the middle of the front part and the rear part of the straight rod 241, clamping blocks are arranged in the clamping grooves, the clamping blocks are connected with the first connecting rod 25 in a clamping mode, and the bristles 242 are uniformly arranged on the side; the brush hair 242 can be cleaned horizontal puddler 23 at the in-process that vertical puddler 24 carries out the side-to-side motion relative horizontal puddler 23, cleans (mixing) shaft 22 lateral wall at rotatory in-process, and the staff later stage only needs to clear up the brush hair 242 of vertical puddler 24, and need not to clear up whole device.
The second-stage stirring device 3 is the same as the first-stage stirring device 2 except that the stirring motor 21 and the stirring shaft 22 are not arranged and the vertical stirring rod 24 is not attached to the sieve plate.
The screening device 4 comprises sieve plates 41, supporting springs 42, a blocking plate 43, a lifting frame 44, a lifting cylinder 45, a mounting plate 46 and a connecting spring 47, wherein the number of the sieve plates 41 is four, four sieve plates 41 are uniformly distributed along the circumferential direction of the stirring shaft 22, the outer side of each sieve plate 41 is connected with the inner wall of the shell 1 in a sliding fit mode, the inner side of each sieve plate 41 is connected with the side wall of the stirring shaft 22 in a sliding fit mode, the upper end and the lower end of the outer side of each sieve plate 41 are connected with the inner wall of the shell 1 through the supporting springs 42, the blocking plate 43 is arranged at the lower end of the sieve plate 41, the inner side of the blocking plate 43 is connected with the side wall of the stirring shaft 22 in a sliding fit mode, the outer side of the blocking plate 43 is connected with one end of the lifting frame, the mounting plate 46 is mounted on the outer wall of the shell 1 in a sliding fit manner, and a connecting spring 47 is connected between the mounting plate 46 and the outer wall of the shell 1; in the initial period of stirring work just beginning, the terminal surface is hugged closely under putty frame up end and the sieve 41, the powder can't fall through sieve 41 this moment, after thirty minutes when the churning time, drive crane 44 downstream through lift cylinder 45, make the gap increase between putty board 43 and the sieve 41, leave enough space for the whereabouts of powder, in the screening process, because sieve 41 is connected with casing 1 through supporting spring 42, consequently sieve 41 can produce the oscillation from top to bottom, make the powder distribute more evenly.
The blanking plate 43 comprises a base plate 431 and a blanking rod 432, the shape and the size of the base plate 431 are the same as those of the sieve plate 41, the blanking rod 432 is installed on the base plate 431, the blanking hole 432 is arranged beside the base plate, the aperture of the blanking hole is gradually reduced from top to bottom, the position of the blanking rod 432 corresponds to the position of the sieve hole one by one, the height of the blanking rod 432 is equal to that of the sieve hole, when the upper end surface of the base plate 431 is tightly attached to the lower end surface of the sieve plate 41, the side wall of the blanking rod 432 is tightly attached to the inner wall of the sieve hole, when the lifting cylinder 45 drives the blanking plate 43 to move downwards, the blanking rod 432 is completely pulled out of the sieve hole, and powder subjected to preliminary stirring can fall into the second-stage.
The lower end of the lifting port is provided with an auxiliary groove communicated with the lifting port, a baffle 44a is arranged in the auxiliary groove in a sliding fit mode, the upper end of the baffle 44a is connected with the lower end of the lifting frame 44, and the baffle 44a can prevent powder from overflowing from the lifting port in the up-and-down moving process of the lifting frame 44.
The upper end face of the sieve plate 41 is of a cambered surface structure with the height gradually reduced from inside to outside, and the lower end face of the vertical stirring rod 24 is attached to the upper end face of the sieve plate 41; when vertical puddler 24 carries out horizontal linear motion under the extrusion of extrusion ring 27, the contact position of vertical puddler 24 and sieve 41 up end changes, when vertical puddler 24 and the higher contact of sieve 41 up end, will produce decurrent pressure to sieve 41, when vertical puddler 24 and the lower contact of sieve 41 up end, under supporting spring 42's elastic force effect, sieve 41 upward movement one section distance, reach from this and drive the purpose that sieve 41 shakes from top to bottom at stirring and screening in-process, make the powder can distribute more evenly on sieve 41.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.