CN117463278B

CN117463278B - Preparation process and preparation device of anti-whitening styrene-acrylic emulsion for JS waterproof coating

Info

Publication number: CN117463278B
Application number: CN202311836635.0A
Authority: CN
Inventors: 王志宽; 孙志勇; 崔振虎
Original assignee: Anhui Hengguang New Material Technology Co ltd
Current assignee: Anhui Hengguang New Material Technology Co ltd
Priority date: 2023-12-28
Filing date: 2023-12-28
Publication date: 2024-03-19
Anticipated expiration: 2043-12-28
Also published as: CN117463278A

Abstract

The invention discloses a preparation process and a preparation device of anti-whitening styrene-acrylic emulsion for JS waterproof paint, and relates to the technical field of waterproof paint production. According to the invention, the filtering basin is arranged to filter the solid additive, so that the solid additive is prevented from sinking to the bottom of the emulsifying kettle before being not completely melted, and meanwhile, the filtering basin is forced to lift in the process that the driving piece drives the stirring sleeve to stir the emulsion, so that the stirring sleeve can shift the auxiliary agent into the preheating tank, the auxiliary agent is independently heated, and the emulsifying efficiency is improved.

Description

Preparation process and preparation device of anti-whitening styrene-acrylic emulsion for JS waterproof coating

Technical Field

The invention relates to the technical field of waterproof paint production, in particular to a preparation process and a preparation device of whitening-resistant styrene-acrylic emulsion for JS waterproof paint.

Background

The JS waterproof paint is a common paint, and has the characteristics of water resistance, moisture resistance, mildew resistance, good weather resistance and the like, wherein the anti-whitening styrene-acrylic emulsion is one of key components in the JS waterproof paint and is used for providing the emulsifying property of the paint, and the emulsifying kettle is used for preparing, emulsifying and homogenizing materials during emulsion processing, and after the materials are added into the emulsifying kettle in proportion, the materials can be fully mixed through rapid stirring, and can be emulsified under the conditions of heating and high-speed stirring.

The prior patent application has the following patent publication numbers: CN218573652U, publication day 2023, 03 and 07, the name of the patent is "an enamel reactor with preheating device for producing styrene-acrylic emulsion", the patent includes a base, a side plate, a preheating bin, an enamel reactor, a discharging pipe, a valve, an auxiliary preheating device and a stirring device, the side plate is installed on the base, the preheating bin is installed on the side plate, the enamel reactor is installed on the preheating bin, a water outlet is arranged on the preheating bin, the discharging pipe is installed on the enamel reactor, the discharging pipe passes through the water outlet, the valve is installed on the discharging pipe, the auxiliary preheating device is also installed on the preheating bin, and the stirring device is also installed on the side plate; the auxiliary preheating device is used for preheating the styrene-acrylic emulsion in the enamel reaction kettle and the stirring device is used for stirring and emulsifying the styrene-acrylic emulsion in the enamel reaction kettle.

The above application has the disadvantage that in the emulsification process, besides adding emulsion raw materials, some auxiliary agents are needed to be added, wherein the solid auxiliary agents are not used, if the solid auxiliary agents are not filtered during emulsification, solid particles which are not fully heated and melted are easy to block or adhere to the discharge port at the bottom of the kettle body, if a layer of filter screen is directly added, the effect of mixing after adding other auxiliary agents is not ideal as the auxiliary agents which are not melted are more and more, and the solid auxiliary agents are always attached to the filter screen and are always immersed in the liquid raw materials, so that the speed of fully heating is slower, and the efficiency of mixing emulsification is affected.

Disclosure of Invention

The invention aims to provide a preparation process and a preparation device of whitening-resistant styrene-acrylic emulsion for JS waterproof paint, which are used for solving the defects in the prior art.

In order to achieve the above object, the present invention provides the following technical solutions:

the utility model provides a JS waterproof coating is with anti whitewashing styrene-acrylic emulsion preparation facilities, includes reation kettle, still includes the driving piece, and this driving piece installs in reation kettle, and the preheating tank has been seted up to the reation kettle inner wall, and the movable sleeve is equipped with stirring external member on the driving piece, the cover is equipped with the filtration basin with reation kettle inner wall sliding connection on the stirring external member, evenly seted up the filtration pore on the filtration basin, and the basin mouth of filtration basin is down, the filter-pressing basin is under the driving piece intermittent type nature, lifts the charging tray, and its elastic mounting is in reation kettle's bottom, and the jacking subassembly is installed to the reation kettle inside wall, and the jacking subassembly offsets with the filtration basin respectively, works as the filtration basin lifts to preheating tank department when, the big granule material of filtering is pushed up to preheating tank by stirring external member and heats alone, and when the filtration basin descends, then lifts the charging tray through the jacking subassembly and lets the raw materials wash away the material in the preheating tank.

Preferably, the driving piece includes driving motor and the rotation axostylus axostyle that links to each other with driving motor, the outer transmission of rotation axostylus axostyle has cup jointed the adapter sleeve, and the vertical slidable mounting of adapter sleeve lateral wall has the support of supporting that offsets with the filter bowl, the lift guide way that supplies the support to press the frame grafting has been seted up to the reation kettle inner wall, and the lift guide way is annular.

Preferably, a plurality of transmission gears are rotatably arranged at the top of the inner wall of the reaction kettle between the connecting sleeve and the rotating shaft rod, a driving toothed ring meshed with the transmission gears is embedded on the rotating shaft rod, and a driven toothed ring meshed with the transmission gears is fixedly connected to the inner wall of the connecting sleeve.

Preferably, the stirring sleeve comprises a sleeve coaxially sleeved on the rotating shaft rod, a stirring frame and a stirring frame are sleeved on the sleeve, and the stirring frame is contacted with the top surface of the filter basin.

Preferably, the bottom of the material lifting disc is fixedly connected with a tension spring, and the bottom of the tension spring is embedded into a discharge hole at the bottom of the reaction kettle.

Preferably, the sleeve pipe both sides all fixedly connected with support the piece, filter basin inner wall fixedly connected with support piece butt complex arch.

Preferably, the jacking component comprises a hollow scraping rod in contact with the inner wall of the reaction kettle, a first piston rod and a second piston rod are respectively inserted at two ends of the hollow scraping rod, the top of the first piston rod is propped against the filter basin, and the top of the second piston rod is propped against the bottom surface of the lifting tray.

Preferably, the side wall of the first piston rod is contacted with the inner side wall of the filter bowl, and the inner side of the hollow scraping rod is slidably provided with a plug-in block matched with the stirring frame.

Preferably, the material shifting frame is movably sleeved on the sleeve, and a top spring for propping the material shifting frame is sleeved on the top of the sleeve.

A preparation process of anti-whitening styrene-acrylic emulsion for JS waterproof paint, which uses the preparation device, comprises the following steps:

s1, preparing raw materials: preparing raw materials such as styrene-acrylic emulsion, an emulsifying agent, a stabilizing agent, a surfactant and the like;

s2, preparing a water phase: adding a proper amount of water into a reaction kettle for heating;

s3, preparing an oil phase: adding the styrene-acrylic emulsion into another container, adding a proper amount of stabilizer and surfactant, and uniformly stirring;

s4, emulsification: slowly injecting the oil phase into the water phase, and simultaneously opening a driving piece in the reaction kettle to drive a stirring sleeve to stir the mixed materials, wherein the stirring speed is 400-900 rpm, and the stirring time is 45-60 minutes;

s5, filtering: in the emulsification stirring process, a part of insufficiently dissolved solid materials are filtered by the filtering holes on the filtering basin, when the filtering basin rises to the preheating tank, the stirring sleeve member dials the materials filtered out of the filtering basin into the preheating tank to be independently heated, and then the independently heated materials are mixed with the raw materials again after the filtering basin descends;

s6, standing: after stirring is stopped, heating is continued and kept for a period of time, and finally heating is stopped again, and the emulsion is fully cooled;

s7, packaging: packaging the emulsified anti-whitening styrene-acrylic emulsion, and storing in a cool and dry place.

In the technical scheme, the solid additive is filtered through setting up the filter bowl, avoid solid additive to sink to the cauldron bottom of emulsion cauldron before not melting completely, simultaneously drive the stirring external member at the driving piece and stir the in-process of emulsion, still can force the filter bowl to descend, and lift the charging tray through the jacking subassembly simultaneously, when the height of filter bowl is less than preheating the groove, let the solid auxiliary agent and the liquid raw materials of filtering out mix together and stir, and when the driving piece loosen the filter bowl, lift the charging tray and descend under the elasticity effect, and utilize the jacking subassembly to lift the filter bowl again, let the height of filter bowl be higher than the tank bottom of preheating the groove, leave the liquid raw materials with the solid auxiliary agent of filtering, and let the stirring external member stir the auxiliary agent to preheat the inslot, let the auxiliary agent heat alone, get rid of part liquid raw materials in the preheating groove also can flow back to the cauldron bottom of reaction kettle through the border of filter bowl, guarantee that the solid auxiliary agent is heated fast, then after the filter bowl descends once more, drive the jacking subassembly and lift the charging tray, let the liquid material in the cauldron upwards stir the groove, the liquid auxiliary agent in the emulsifying tank is heated again, the emulsification tank is fully, the efficiency is stirred again, and the emulsification tank is stirred again, and the emulsification is carried out.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

This document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all of the features of the disclosed technology.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

Fig. 1 is a schematic diagram of the overall structure of a device for preparing a whitening-resistant styrene-acrylic emulsion for a JS waterproof paint;

fig. 2 is an overall sectional view of a device for preparing the whitening-resistant styrene-acrylic emulsion for the JS waterproof paint;

fig. 3 is a schematic structural diagram of a reaction kettle in a device for preparing the anti-whitening styrene-acrylic emulsion for the JS waterproof paint;

fig. 4 is a schematic diagram of the internal structure of a device for preparing the anti-whitening styrene-acrylic emulsion for the JS waterproof paint;

fig. 5 is a schematic connection diagram of a driving member and a stirring sleeve member in the device for preparing the anti-whitening styrene-acrylic emulsion for the JS waterproof paint;

FIG. 6 is an enlarged view of the A position of the device for preparing the anti-whitening styrene-acrylic emulsion for the JS waterproof paint;

FIG. 7 is a schematic diagram showing the connection between the driving member and the filter basin in the device for preparing the anti-whitening styrene-acrylic emulsion for JS waterproof paint;

fig. 8 is a schematic structural diagram of a filter bowl in the device for preparing the whitening-resistant styrene-acrylic emulsion for the JS waterproof paint;

fig. 9 is a schematic structural diagram of a jacking component in a device for preparing anti-whitening styrene-acrylic emulsion for a JS waterproof paint.

Reference numerals illustrate:

1. a reaction kettle; 101. a preheating tank; 2. a driving member; 201. a driving motor; 202. rotating the shaft lever; 203. a connecting sleeve; 204. a pressing frame; 205. lifting guide grooves; 206. a transmission gear; 207. a driving toothed ring; 208. a driven toothed ring; 209. a top spring; 3. stirring external member; 301. a sleeve; 302. a kick-out frame; 303. a stirring rack; 304. abutting blocks; 4. a filtering basin; 401. filtering holes; 402. a protrusion; 5. lifting a material tray; 501. a tension spring; 6. a jacking assembly; 601. a hollow scraping rod; 602. a first piston rod; 603. a second piston rod; 604. and (5) plugging the blocks.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. It will be apparent that the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments, which can be made by one of ordinary skill in the art without the need for inventive faculty, are within the scope of the present disclosure, based on the described embodiments of the present disclosure.

Referring to fig. 1-9, the device for preparing the anti-whitening styrene-acrylic emulsion for the JS waterproof coating provided by the embodiment of the invention comprises a reaction kettle 1 and a driving piece 2, wherein the driving piece 2 is arranged in the reaction kettle 1, a preheating tank 101 is formed in the inner wall of the reaction kettle 1, a stirring sleeve 3 is movably sleeved on the driving piece 2, a filter bowl 4 which is in sliding connection with the inner wall of the reaction kettle 1 is sleeved on the stirring sleeve 3, filter holes 401 are uniformly formed in the filter bowl 4, the bowl mouth of the filter bowl 4 faces downwards, the driving piece 2 intermittently presses the filter bowl 4, a lifting disc 5 is elastically arranged at the bottom of the reaction kettle 1, a lifting assembly 6 is arranged on the inner side wall of the reaction kettle 1, the lifting assembly 6 is respectively propped against the filter bowl 4 and the lifting disc 5, when the filter bowl 4 is lifted to the preheating tank 101, filtered large particle materials are pushed to the preheating tank 101 by the stirring sleeve 3 to be independently heated, and when the filter bowl 4 descends, the lifting assembly 6 lifts the material in the preheating tank 101.

Specifically, a heating cavity is arranged in the reaction kettle 1, when the reaction kettle is used, firstly, raw materials are poured into the reaction kettle 1, then various additives are poured into the reaction kettle, a driving piece 2 drives a stirring sleeve piece 3 to rotate so as to heat and stir the raw materials, filter holes 401 are distributed on the whole filter basin 4, the additives are filtered through the filter holes 401 on the filter basin 4, larger fixed particles in the additives are filtered and isolated, large particles are prevented from falling into the bottom of the kettle in the stirring reaction process, the large particles are prevented from blocking an outlet at the bottom of the reaction kettle 1, part of the additives are mixed with emulsion above the filter basin 4, the particle additives with proper sizes penetrate through the filter holes 401 on the filter basin 4 to fall below the filter basin 4 along with the dissolution of the additives, and then are fully mixed with the emulsion in the kettle, so that the effect of the emulsification reaction can be improved, meanwhile, when the driving piece 2 drives the stirring sleeve piece 3 to rotate, the intermittent filter pressing basin 4 is also arranged, when the filter basin 4 descends below the preheating tank 101, the filter basin 4 can sink into emulsion, the stirring sleeve 3 continuously stirs and mixes additives on the filter basin 4, the filter basin 4 descends to squeeze the jacking component 6, the jacking component 6 lifts the lifting tray 5, when the driving piece 2 loosens the filter basin 4, the lifting tray 5 is reset and descends under the elastic force, the filter basin 4 is reset and ascends to the position above the liquid level through the jacking component 6 under the acting force of the lifting tray 5, the edge of the filter basin is positioned at the notch of the preheating tank 101, when the stirring sleeve 3 continuously stirs, solid additives on the filter basin 4 are pulled out, the filtered additives are pushed into the preheating tank 101, the additives are independently heated in the preheating tank 101, and the notch of the preheating tank 101 can be shielded as long as the filter basin 4 does not descend, the additive is continuously heated in the preheating tank 101, the additive is fully heated, the liquid materials attached to the additive can flow into the kettle along the filter basin 4 in advance, after the filter basin 4 descends again, the notch of the preheating tank 101 is in a completely open state again, the additive after complete heating automatically falls onto the filter basin 4 immersed in the emulsion, the additive is mixed with the emulsion again, the additive after complete heating can be mixed with the emulsion more quickly, the mixing and emulsifying efficiency is improved, and as the filter basin 4 drives the jacking component 6 repeatedly in the lifting process, the lifting tray 5 always immersed in the emulsion oscillates up and down, so that the emulsion can be lifted to wash the preheating tank 101, and the mixing and emulsifying effect of the emulsion can be further improved.

Compared with the prior art, the embodiment of the invention filters the solid additive by arranging the filter basin 4, avoids the solid additive sinking to the bottom of the kettle of the emulsifying kettle before incomplete melting, simultaneously forces the filter basin 4 to descend in the process of stirring the emulsion by driving the stirring suite 3 by the driving piece 2, and simultaneously lifts the lifting tray 5 by the jacking component 6, when the height of the filter basin 4 is lower than that of the preheating tank 101, the filtered solid additive and the liquid raw material are mixed together to stir, when the driving piece 2 releases the filter basin 4, the lifting tray 5 descends under the action of elasticity, and lifts the filter basin 4 again by the jacking component 6, the height of the filter basin 4 is higher than the bottom of the preheating tank 101, the filtered solid additive leaves the liquid raw material, and the stirring suite 3 dials the additive into the preheating tank 101, the additive is independently heated, and part of the liquid raw material in the preheating tank 101 also flows back to the bottom of the kettle of the reaction tank 1 through the edge of the filter basin 4, so that the additive is guaranteed to be quickly heated, and then the jacking component 6 is driven to lift the liquid raw material in the kettle 4 again when the filter basin 4 is lifted again, and the liquid is heated up again, and the emulsifying tank 4 is fully heated, and the efficiency is raised again, and the emulsifying tank is lifted up and the liquid is heated by the lifting component 5.

In a further embodiment of the invention, the driving piece 2 comprises a driving motor 201 and a rotating shaft lever 202 connected with the driving motor 201, a connecting sleeve 203 is sleeved outside the rotating shaft lever 202 in a transmission way, the top of the connecting sleeve 203 is rotationally connected with the top of the inner wall of the reaction kettle 1, a pressing frame 204 which is propped against the filter basin 4 is vertically and slidably arranged on the outer side wall of the connecting sleeve 203, a lifting guide groove 205 for inserting the pressing frame 204 is arranged on the inner wall of the reaction kettle 1, the lifting guide groove 205 is annular, two grooves with different heights in the lifting guide groove 205 are connected, the length of the groove positioned below is larger than the length of the groove positioned above, the stroke length for forcing the pressing frame 204 to ascend is smaller than the stroke length for forcing the pressing frame 204 to descend, a limit bar is vertically arranged on the inner wall of the reaction kettle 1, a chute matched with the limit bar is vertically arranged on the side wall of the filter basin 4, the rotating shaft lever 202 rotates to drive the connecting sleeve 203 to rotate, so as to adjust the position of the pressing frame 204, the bottom of the pressing frame 204 is always pressed against the filter basin 4, and the side wall is inserted into the lifting guide groove 205, so that the pressing frame 204 moves up and down along the track of the lifting guide groove 205 in the rotating process, after a period of mixing, the filter basin 4 can be lifted, filtered additives are lifted to the same height as the preheating groove 101, so that the stirring sleeve 3 dials the additives on the filter basin 4 into the preheating groove 101 for heating independently, and when the pressing frame 204 rotates one circle, the duration of the pressing basin 4 under the pressing frame 204 exceeds the time of releasing the filter basin 4 by the pressing frame 204 due to the influence of the lifting guide groove 205, the time of immersing the filter basin 4 in emulsion is prolonged, and the emulsion and the additives are fully mixed.

In a further embodiment of the present invention, a plurality of transmission gears 206 are rotatably installed between the connection sleeve 203 and the rotation shaft 202 on the top of the inner wall of the reaction kettle 1, and the plurality of rotation gears are distributed in a ring shape, a driving toothed ring 207 meshed with the transmission gears 206 is embedded on the rotation shaft 202, a driven toothed ring 208 meshed with the transmission gears 206 is fixedly connected to the inner wall of the connection sleeve 203, specifically, when the rotation shaft 202 rotates normally, the plurality of transmission gears 206 are driven to drive the connection sleeve 203 sleeved outside to rotate continuously, the transmission gears 206 are utilized to adjust the differential speed ratio of the rotation shaft 202 and the connection sleeve 203, so that the rotation speed of the connection sleeve 203 is slower than the rotation speed of the rotation shaft 202, and when the driving member 2 drives the stirring sleeve 3 to stir and mix the emulsion and the additive, the filter bowl 4 will not rise and fall fast, the time of the filter bowl 4 into the emulsion is ensured to be fully mixed, and then the filter bowl 4 is lifted, and the filtered additive is further processed.

In a further embodiment of the present invention, the stirring sleeve 3 includes a sleeve 301 coaxially sleeved on the rotating shaft 202, a sliding block is fixed on the inner wall of the sleeve 301, a chute matched with the sliding block is vertically provided on the rotating shaft 202, the top of the sleeve 301 penetrates through the center of the filter basin 4, a stirring frame 302 and a stirring frame 303 are sleeved on the sleeve 301, the stirring frame 302 contacts with the top surface of the filter basin 4, the stirring frame 303 is located below the filter basin 4, specifically, the rotating shaft 202 drives the stirring sleeve 3 to synchronously rotate, the stirring frame 302 and the stirring frame 303 on the sleeve 301 stir and mix the emulsion and the additive in the emulsion respectively, the stirring frame 302 above the filter basin 4 always is lapped on the top surface of the filter basin 4 under the action of gravity, so that the solid additive accumulated on the filter basin 4 can be stirred and scattered sufficiently and continuously, the additive on the filter basin 4 is prevented from being attached to the filter basin 4 all the time after the filter basin 4 is immersed into the emulsion, simultaneously, when the filter basin 4 is lifted to the notch of the preheating tank 101, the stirring frame 302 plays a role of pushing the additive, the stirring frame 302 can stir and mix the additive in the emulsion, the additive in the mixing tank, the solid additive can not be heated up and the solid additive 101 alone after the solid additive is heated by the stirring tank, and the solid additive cannot be stirred and heated by the stirring tank 101.

In a further embodiment of the present invention, a tension spring 501 is fixedly connected to the bottom of the lifting tray 5, the bottom of the tension spring 501 is embedded in a discharge hole at the bottom of the reaction kettle 1, a rotating shaft lever 202 penetrates through the center of the lifting tray 5, specifically, after the pressing frame 204 releases the filter bowl 4, the lifting tray 5 is pulled downwards under the action force of the tension spring 501, the other end of the lifting assembly 6 is pushed up to the filter bowl 4 by using the extrusion of the lifting tray 5 to one end of the lifting assembly 6, so that the filter bowl 4 is lifted to the same height as the preheating tank 101 until the pressing frame 204 presses up the filter bowl 4 again, during the pressing process, the filter bowl 4 is lowered, and the lifting assembly 6 is used to lift the lifting tray 5, so that the lifting tray 5 can dial emulsion upwards, and the emulsion in the kettle can sufficiently flush the preheating tank 101 due to the limit of the rotating shaft lever 202.

In a further embodiment of the present invention, two sides of the sleeve 301 are fixedly connected with the abutting blocks 304, the abutting blocks 304 are located below the filter basin 4, the top of the inner wall of the filter basin 4 is fixedly connected with the protrusions 402 which are in abutting fit with the abutting blocks 304, specifically, when the rotating shaft lever 202 rotates together with the sleeve 301, the abutting blocks 304 on the sleeve 301 intermittently abut against the protrusions 402 on the filter basin 4, so that vibration of the filter basin 4 is forced, and the additive of the agglomerate is dispersed while the additive is prevented from blocking the filter holes 401, so that the emulsion mixing and emulsifying effect is better.

In a further embodiment of the present invention, the material stirring frame 302 is movably sleeved on the sleeve 301, the top of the sleeve 301 is sleeved with the top spring 209 for pressing the material stirring frame 302, specifically, when the filter bowl 4 vibrates, the material stirring frame 302 is always pressed against the filter bowl 4 under the acting force of the top spring 209, so that the interval between the filter bowl 4 and the material stirring frame 302 is prevented, the mixing effect of the additive and the emulsion on the filter bowl 4 is ensured, and meanwhile, the situation that the material stirring frame 302 cannot completely stir the additive on the filter bowl 4 into the preheating tank 101 after the filter bowl 4 is lifted is avoided.

In a further embodiment of the present invention, the jacking component 6 includes a pair of hollow scraping rods 601 in contact with the inner wall of the reaction kettle 1, two ends of the hollow scraping rods 601 are respectively movably inserted with a first piston rod 602 and a second piston rod 603, the top of the first piston rod 602 abuts against the bottom surface of the material lifting disc 5, specifically, when the material lifting disc 4 descends, the first piston rod 602 abutting against the first piston rod 602 at the opening at one end of the hollow scraping rods 601, the first piston rod 602 is utilized to squeeze air in the hollow scraping rods 601 to push the second piston rod 603 at the opening at the other end of the hollow scraping rods 601, so that the second piston rod 603 is enabled to jack up the material lifting disc 5, after the material lifting disc 4 descends, emulsion is enabled to be lifted up by the material lifting disc 5, additives fully heated in the preheating tank 101 are flushed onto the material lifting disc 4 to be mixed and emulsified again, when the material lifting disc 5 resets under the action force of the tension spring 501 to descend when the material lifting disc 204 moves upwards to loosen the material lifting disc 4, the second piston rod 603 is pressed, and solid particles are automatically filtered out and the solid particles are not pushed back against the hollow scraping disc 601 by the second piston rod 603 when the hollow scraping rod 601 is pushed to push the air in the hollow scraping disc 602 to bear against the first piston rod 602.

In a further embodiment of the present invention, the side walls of the first piston rods 602 contact with the inner side walls of the filter bowl 4, and specifically, after the two first piston rods 602 lift the filter bowl 4, they respectively abut against two sides of the inner wall of the filter bowl 4, so that the stability of the filter bowl 4 can be ensured, and the structural strength of the filter bowl 4 can be improved.

In a further embodiment of the present invention, an inserting block 604 matched with the stirring frame 303 is slidingly installed in the hollow scraping rod 601, specifically, the stirring frame 303 is inserted into the inserting block 604, and the hollow scraping rod 601 is driven to rotate together when the stirring frame 303 rotates, so that the hollow scraping rod 601 scrapes the material attached to the inner wall of the reaction kettle 1, and meanwhile, a first piston rod 602 on the hollow scraping rod 601 also cleans the inner side wall of the filtering basin 4, preventing the material from adhering, and facilitating subsequent cleaning.

s2, preparing a water phase: adding a proper amount of water into the reaction kettle 1 for heating;

s4, emulsification: slowly injecting the oil phase into the water phase, and simultaneously opening a driving piece 2 in the reaction kettle 1 to drive a stirring sleeve 3 to stir the mixed materials, wherein the stirring speed is 400-900 rpm, and the stirring time is 45-60 minutes;

s5, filtering: in the emulsification stirring process, a part of insufficiently dissolved solid materials are filtered by the filter holes 401 on the filter basin 4, when the filter basin 4 is lifted to the preheating tank 101, the stirring sleeve 3 dials the materials filtered out of the filter basin 4 into the preheating tank 101 for independent heating, and then the independently heated materials are mixed with the raw materials again after the filter basin 4 descends;

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the invention, which is defined by the appended claims.

Claims

1. The utility model provides a JS waterproof coating is with anti whitening styrene-acrylic emulsion preparation facilities, includes reation kettle (1), its characterized in that still includes:

the device comprises a driving piece (2), wherein the driving piece (2) is arranged in a reaction kettle (1), a preheating groove (101) is formed in the inner wall of the reaction kettle (1), a stirring sleeve (3) is sleeved on the driving piece (2), a filter basin (4) which is in sliding connection with the inner wall of the reaction kettle (1) is sleeved on the stirring sleeve (3), filter holes (401) are uniformly formed in the filter basin (4), the basin mouth of the filter basin (4) faces downwards, and the filter basin (4) is intermittently pressed down by the driving piece (2);

the driving piece (2) comprises a driving motor (201) and a rotating shaft rod (202) connected with the driving motor (201), a connecting sleeve (203) is sleeved outside the rotating shaft rod (202) in a transmission mode, a pressing frame (204) which is propped against the filter basin (4) is vertically and slidably arranged on the outer side wall of the connecting sleeve (203), a lifting guide groove (205) for the pressing frame (204) to be inserted is formed in the inner wall of the reaction kettle (1), the lifting guide groove (205) is annular, two grooves with different heights in the lifting guide groove (205) are connected, the length of the groove positioned below is larger than that of the groove positioned above, and the stroke length for forcing the pressing frame (204) to ascend is smaller than that for forcing the pressing frame (204) to descend;

a plurality of transmission gears (206) are rotatably arranged between the connecting sleeve (203) and the rotating shaft rod (202) at the top of the inner wall of the reaction kettle (1), a driving toothed ring (207) meshed with the transmission gears (206) is embedded on the rotating shaft rod (202), and a driven toothed ring (208) meshed with the transmission gears (206) is fixedly connected with the inner wall of the connecting sleeve (203);

the stirring sleeve (3) comprises a sleeve (301) coaxially sleeved on the rotating shaft rod (202), a stirring frame (302) and a stirring frame (303) are sleeved on the sleeve (301), and the stirring frame (302) is contacted with the top surface of the filter basin (4);

the lifting tray (5) is elastically arranged at the bottom of the reaction kettle (1), the lifting assembly (6) is arranged on the inner side wall of the reaction kettle (1), and the lifting assembly (6) is respectively propped against the filter basin (4) and the lifting tray (5);

the jacking assembly (6) comprises a hollow scraping rod (601) in contact with the inner wall of the reaction kettle (1), a first piston rod (602) and a second piston rod (603) are respectively inserted into two ends of the hollow scraping rod (601), the top of the first piston rod (602) is propped against the filter bowl (4), the top of the second piston rod (603) is propped against the bottom surface of the lifting tray (5), the side wall of the first piston rod (602) is in contact with the inner side wall of the filter bowl (4), and a plug-in block (604) matched with the stirring frame (303) is slidably arranged on the inner side of the hollow scraping rod (601);

when the filter basin (4) is lifted to the preheating tank (101), the filtered large-particle materials are pushed to the preheating tank (101) by the stirring sleeve (3) to be heated independently, and when the filter basin (4) descends, the lifting disc (5) is lifted by the lifting assembly (6) to enable the materials in the preheating tank (101) to be flushed away.

2. The device for preparing the whitening-resistant styrene-acrylic emulsion for the JS waterproof paint, disclosed by claim 1, is characterized in that a tension spring (501) is fixedly connected to the bottom of the lifting tray (5), and the bottom of the tension spring (501) is embedded into a discharge hole at the bottom of the reaction kettle (1).

3. The device for preparing the whitening-resistant styrene-acrylic emulsion for the JS waterproof paint according to claim 1, wherein two sides of the sleeve (301) are fixedly connected with abutting blocks (304), and the inner wall of the filter basin (4) is fixedly connected with protrusions (402) which are in abutting fit with the abutting blocks (304).

4. The device for preparing the whitening-resistant styrene-acrylic emulsion for the JS waterproof paint as set forth in claim 1, wherein the shifting frame (302) is movably sleeved on the sleeve (301), and a top spring (209) for pressing the shifting frame (302) is sleeved on the top of the sleeve (301).

5. A process for preparing a whitening-resistant styrene-acrylic emulsion for a JS waterproof paint, which is characterized by using the preparation device as set forth in any one of claims 1-4, and comprising the following steps:

s1, preparing raw materials: preparing styrene-acrylic emulsion, an emulsifying agent, a stabilizing agent and a surfactant;

s2, preparing a water phase: adding a proper amount of water into a reaction kettle (1) for heating;

s4, emulsification: slowly injecting the oil phase into the water phase, and simultaneously opening a driving piece (2) in the reaction kettle (1) to drive a stirring sleeve (3) to stir the mixed material, wherein the stirring speed is 400-900 revolutions per minute, and the stirring time is 45-60 minutes;

s5, filtering: in the emulsification stirring process, part of insufficiently dissolved solid materials are filtered by a filtering hole (401) on the filtering basin (4), when the filtering basin (4) is lifted to the preheating tank (101), the stirring sleeve (3) dials the materials filtered out of the filtering basin (4) into the preheating tank (101) to be independently heated, and then the independently heated materials are mixed with the raw materials again after the filtering basin (4) descends;