CN217288379U

CN217288379U - Reaction kettle for preparing high-toughness acrylic polymer emulsion

Info

Publication number: CN217288379U
Application number: CN202123322218.3U
Authority: CN
Inventors: 苏向东; 白天艳; 张垚俊
Original assignee: Nanjing Ruigu Polymer Co ltd
Current assignee: Nanjing Ruigu Polymer Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-08-26
Anticipated expiration: 2031-12-28

Abstract

The utility model discloses a reation kettle for preparing high tenacity acrylic polymer emulsion relates to the technical field of acrylic polymer emulsion, aims at solving prior art, and likepowder raw materials floats in the solvent surface, leads to stirring inefficiency problem. Its technical scheme main points are including the cauldron body, the internal (mixing) shaft that is provided with along vertical direction of cauldron, agitator shaft connection has drive (mixing) shaft pivoted rotating electrical machines, be provided with the stirring rake on the (mixing) shaft, the internal annular scraping wings that is provided with of cauldron, the outer loop lateral wall of scraping wings and the inside wall laminating of the cauldron body, be connected with the electric jar that is used for driving the scraping wings to remove along vertical direction on the scraping wings, the cylinder of electric jar is fixed and is fixed at cauldron body roof and telescopic link and scraping wings, the (mixing) shaft passes the scraping wings and is less than the internal diameter length of scraping wings at the footpath length of stroke within range of scraping wings stirring rake. The utility model discloses the effect of submitting reation kettle stirring efficiency has been reached.

Description

Reaction kettle for preparing high-toughness acrylic polymer emulsion

Technical Field

The utility model belongs to the technical field of the technique of acrylic acid polymer emulsion and specifically relates to a reation kettle for preparing high tenacity acrylic acid polymer emulsion is related to.

Background

The acrylic emulsion is a milky white or nearly transparent viscous liquid, is an emulsion formed by copolymerizing pure acrylate monomers, is an emulsion with small particle size, multiple purposes and outstanding performance, is suitable for various coating formulas, has outstanding water resistance and weather resistance, and particularly has excellent performance in high-gloss and semi-gloss coatings. The acrylic emulsion has good water resistance, alkali resistance and dirt resistance, has good adhesion to the surfaces of masonry, wood and steel, can be used for preparing flat, semi-gloss and high-gloss emulsion paints, and can also be used for preparing high-quality finishing paints for floors, cement encaustic tiles and tennis courts.

The preparation of the acrylic polymer needs to utilize a reaction kettle, and all preparation raw materials are poured into the reaction kettle to react under certain conditions to generate the acrylic polymer. The high-toughness acrylic polymer emulsion is improved in toughness on the basis of acrylic emulsion, and meets special requirements of the industry. In the preparation process, the raw materials include liquid solvent and powder, but generally float on the surface when the powder is put into the solvent, and part can also be attached to the inner wall of the reaction kettle above the liquid level of the solvent, so that the stirring efficiency of the reaction kettle is greatly reduced, the reaction sufficiency is further influenced, and the problem is to be solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a reation kettle for preparing high tenacity acrylic acid polymer emulsion, it has the effect that improves reation kettle stirring efficiency.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a reation kettle for preparing high tenacity acrylic polymer emulsion, includes the cauldron body, the internal vertical direction that is followed of cauldron is provided with the (mixing) shaft, agitator shaft connection has drive (mixing) shaft pivoted rotating electrical machines, be provided with the stirring rake on the (mixing) shaft, the internal annular scraping wings that is provided with of cauldron, the outer loop lateral wall of scraping wings and the inside wall laminating of the cauldron body, be connected with the electric jar that is used for driving scraping wings along vertical direction reciprocating motion on the scraping wings, the cylinder of electric jar is fixed at cauldron body roof and telescopic link and is fixed with the scraping wings, the footpath length that the (mixing) shaft passed scraping wings and stirring rake is less than the internal diameter length of scraping wings in the stroke range of scraping wings.

By adopting the technical scheme, the surface of the material pushing plate is provided with the hydrophobic coating.

By adopting the technical scheme, an acute included angle is formed between the material pushing plate and the horizontal plane, and the material pushing plate is in a circular truncated cone shape.

By adopting the technical scheme, the longitudinal section of the material pushing plate is conical, and the tip of the material pushing plate faces upwards.

Through adopting above-mentioned technical scheme, the bottom of the cauldron body is under the wide hourglass hopper-shaped of width, the bottom of (mixing) shaft is provided with the puddler that is adapted to cauldron body bottom funnel shape and length gradual change.

By adopting the technical scheme, the electric cylinder is provided with a plurality of material pushing plates which are uniformly distributed along the circumferential direction of the material pushing plates.

Through adopting above-mentioned technical scheme, be provided with the feed inlet on the cauldron body roof, be provided with the discharge gate on the diapire, feed inlet and discharge gate department all are provided with the solenoid valve.

Through adopting above-mentioned technical scheme, cauldron body bottom is connected with the suction pump, cauldron body top is provided with the circulation import, pass through the pipe connection between suction pump and the circulation import.

To sum up, the beneficial technical effects of the utility model are that:

1. through the arrangement of the stirring shaft, the rotating motor, the stirring paddle, the material pushing plate and the electric cylinder, the material pushing plate reciprocates up and down under the driving action of the electric cylinder, so that powder materials suspended on the surface of the solvent and powder adhered on the inner wall of the kettle body are continuously pressed into the solvent and dissolved through the stirring paddle, the sufficient dissolving speed of the powder materials is accelerated, and the stirring efficiency is improved;

2. through the arrangement of the hydrophobic coating, the powder materials adhered to the material pushing plate are effectively reduced, so that the full dissolution of the materials is guaranteed;

3. through the setting of suction pump and circulation import, to the powdery material that does not dissolve and gather into a cluster, subside in cauldron body bottom, the suction makes it get into in the cauldron body from circulation import, gets back to the high-speed swirl that the stirring rake produced again and is broken up, dissolved to the abundant reaction of further guarantee material.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;

fig. 2 is a partial cross-sectional view of a stripper plate in another embodiment of the invention.

In the figure, 1, a kettle body; 11. a feed inlet; 12. a discharge port; 13. a valve body; 2. a stirring shaft; 21. a rotating electric machine; 22. a stirring paddle; 23. a stirring rod; 3. a material pushing plate; 31. an electric cylinder; 4. a suction pump; 41. and (4) circulating the inlet.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a reation kettle for preparing high tenacity acrylic polymer emulsion, including the cauldron body 1, be provided with (mixing) shaft 2 along vertical direction in the cauldron body 1, (mixing) shaft 2 is connected with drive (mixing) shaft 2 pivoted rotating electrical machines 21, be provided with stirring rake 22 on the (mixing) shaft 2, be provided with annular scraping wings 3 in the cauldron body 1, the outer loop lateral wall of scraping wings 3 and the laminating of the inside wall of the cauldron body 1, be connected with on the scraping wings 3 and be used for driving scraping wings 3 along vertical direction reciprocating motion's electric jar 31, the cylinder of electric jar 31 is fixed and is fixed at cauldron body 1 roof and telescopic link and scraping wings 3. In order to ensure that the material pushing plate 3 is evenly stressed, the electric cylinder 31 is provided with a plurality of material pushing plates which are evenly distributed along the circumferential direction of the material pushing plates 3, so that the material pushing plates 3 can stably move up and down, and the material pushing plates 3 can be fully attached to the inner wall of the kettle body 1. The stirring shaft 2 penetrates through the material pushing plate 3, and the diameter length of the stirring paddle 22 in the stroke range of the material pushing plate 3 is smaller than the inner diameter length of the material pushing plate 3, so that the stirring paddle 22 does not interfere with the material pushing plate 3 in the rotation process.

In the stirring process of the stirring paddle 22 in the reaction kettle, sometimes the stirring paddle 22 can be completely immersed in the solvent, so that the powder added on the surface of the solvent can not be stirred, and the surface of the solvent can fluctuate due to the stirring of the stirring paddle 22, bring the undissolved powder to be attached to the inner wall of the kettle body 1, and reduce the stirring efficiency. The material pushing plate 3 moves up and down in a reciprocating manner under the driving action of the electric cylinder 31, so that powder materials suspended on the surface of the solvent and powder adhered on the inner wall of the kettle body 1 are pressed into the solvent continuously and dissolved by the stirring paddle 22, the sufficient dissolving speed of the powder materials is accelerated, and the stirring efficiency is improved

In this embodiment, in order to further improve the fitting degree between the material pushing plate 3 and the kettle 1, a circle of rubber pad may be disposed on the outer ring side wall of the material pushing plate 3.

The coating plate is made of stainless steel, the surface of the pushing plate 3 is provided with a hydrophobic coating, and powder materials adhered to the pushing plate 3 are effectively reduced, so that the materials are fully dissolved.

In order to reduce the solvent accumulation on the material pushing plate 3, an acute included angle is formed between the material pushing plate 3 and the horizontal plane, that is, the material pushing plate 3 is in a circular truncated cone shape, and can be wide at the top and narrow at the bottom, and also can be narrow at the top and wide at the bottom, as long as the solvent can rapidly fall along the inclined plane of the material pushing plate 3. In the embodiment, the acute included angle is small and is between 5 ° and 10 °, so that the contact surface between the material pushing plate 3 and the solvent liquid level is ensured to be large enough.

In another embodiment, the ejector plate 3 may be provided in a shape in which the longitudinal section is tapered and the tip end is directed upward, as shown in fig. 2. Meanwhile, the material pushing plate 3 is not necessarily conical, and can be in a shape that the middle part of the inner ring and the outer ring is rounded and protruded upwards, and only a protrusion which is not easy to accumulate water is formed.

A feed inlet 11 is arranged on the top wall of the kettle body 1, a discharge outlet 12 is arranged on the bottom wall, and electromagnetic valves are arranged at the feed inlet 11 and the discharge outlet 12. In order to facilitate the discharge port 12 to discharge the high-toughness acrylic polymer emulsion, the bottom of the kettle 1 is funnel-shaped with a wide top and a narrow bottom. In order to ensure that the bottom of the kettle body 1 can be stirred, the bottom of the stirring shaft 2 is provided with a plurality of stirring rods 23 with gradually changed lengths, which are adaptive to the shape of a funnel at the bottom of the kettle body 1. Specifically, the lengths of the stirring rods 23 are sequentially reduced along the direction from top to bottom of the kettle body 1, so that the stirring rods 23 can be accommodated in the bottom of the kettle body 1.

The bottom of the kettle body 1 is connected with a suction pump 4, the top of the kettle body 1 is provided with a circulation inlet 41, and the suction pump 4 is connected with the circulation inlet 41 through a pipeline. And (3) pumping the powdery materials which are not dissolved, aggregated into a cluster and settled at the bottom of the kettle body 1 to enter the kettle body 1 from the circulating inlet 41, and returning the powdery materials to the high-speed vortex generated by the stirring paddle 22 to be scattered and dissolved, so that the sufficient reaction of the materials is further ensured.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a reation kettle for preparing high tenacity acrylic polymer emulsion, includes the cauldron body (1), be provided with (mixing) shaft (2) along vertical direction in the cauldron body (1), (mixing) shaft (2) are connected with drive (mixing) shaft (2) pivoted rotating electrical machines (21), be provided with stirring rake (22) on (mixing) shaft (2), its characterized in that: be provided with annular scraping wings (3) in the cauldron body (1), the outer loop lateral wall of scraping wings (3) and the inside wall laminating of the cauldron body (1), be connected with on scraping wings (3) and be used for driving scraping wings (3) along vertical direction reciprocating motion's electric jar (31), the cylinder of electric jar (31) is fixed at cauldron body (1) roof and telescopic link and is fixed with scraping wings (3), stirring shaft (2) pass scraping wings (3) and the path length of stirring rake (22) is less than the path length of scraping wings (3) in the stroke scope of scraping wings (3).

2. The reactor of claim 1 for preparing high tenacity acrylic polymer emulsion wherein: the surface of the material pushing plate (3) is provided with a hydrophobic coating.

3. The reactor of claim 2 for preparing high tenacity acrylic polymer emulsion wherein: an acute angle is formed between the material pushing plate (3) and the horizontal plane, and the material pushing plate (3) is in a circular table shape.

4. The reactor of claim 2 for preparing high tenacity acrylic polymer emulsion wherein: the longitudinal section of the material pushing plate (3) is conical, and the tip of the material pushing plate faces upwards.

5. The reaction kettle for preparing a high toughness acrylic polymer emulsion according to claim 3 or 4, wherein: the bottom of the kettle body (1) is funnel-shaped with wide top and narrow bottom, and the bottom of the stirring shaft (2) is provided with a stirring rod (23) which is adapted to the shape of the funnel at the bottom of the kettle body (1) and has gradually changed length.

6. The reaction kettle for preparing a high toughness acrylic polymer emulsion according to claim 5, wherein: the electric cylinders (31) are arranged in a plurality and are uniformly distributed along the circumferential direction of the material pushing plate (3).

7. The reactor of claim 6 for preparing high tenacity acrylic polymer emulsion wherein: be provided with feed inlet (11) on the cauldron body (1) roof, be provided with discharge gate (12) on the diapire, feed inlet (11) and discharge gate (12) department all are provided with the solenoid valve.

8. The reactor of claim 7 for preparing high tenacity acrylic polymer emulsion wherein: the cauldron body (1) bottom is connected with suction pump (4), cauldron body (1) top is provided with circulation import (41), pass through the pipe connection between suction pump (4) and circulation import (41).