CN110126114B - Blending method of polymerization glue solution and dissolving glue solution - Google Patents
Blending method of polymerization glue solution and dissolving glue solution Download PDFInfo
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- CN110126114B CN110126114B CN201910136819.3A CN201910136819A CN110126114B CN 110126114 B CN110126114 B CN 110126114B CN 201910136819 A CN201910136819 A CN 201910136819A CN 110126114 B CN110126114 B CN 110126114B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/06—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices
- B29B7/10—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary
- B29B7/18—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with more than one shaft
- B29B7/20—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
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- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The invention discloses a method for blending a polymerization glue solution and a dissolution glue solution, which comprises the steps of firstly preparing the polymerization glue solution and the dissolution glue solution; secondly, the polymerized glue solution and the dissolved glue solution are respectively added into a glue solution blending stirring shearing device, a stirring motor is started to drive a first stirring shaft and a second stirring shaft to relatively rotate, wherein the rotating directions of the first stirring shaft and the second stirring shaft are opposite, the mixed solution is stirred up and down due to the fact that the stirring shaft is wavy, the first stirring shaft brings the mixed solution above the first stirring shaft to the lower side, the second stirring shaft brings the mixed solution below the second stirring shaft to the upper side, the first stirring shaft and the second stirring shaft are mixed at the middle position, the mixed solution is subjected to integral axial mixing, meanwhile, in the stirring process, the stirring shaft drives blades to rotate, and local shearing stirring of.
Description
Technical Field
The invention relates to the field of rubber, in particular to a blending method of a polymerization glue solution and a dissolving glue solution.
Background
In the processing and production of rubber, mixing is one of the most basic and important processing processes. In the mixing process, various compounding agents are required to be uniformly dispersed in the raw rubber so as to obtain better mechanical property and ensure the uniformity of the composition and the performance of the rubber material. The requirements on the mixing process are high speed, high production efficiency and low energy consumption. The mixing process has a decisive influence on the quality of the mixed compound and the finished product.
The traditional rubber mixing process is mainly dry mixing. Dry mixing refers to placing raw rubber, powdered filler and compounding ingredients in an internal mixer or an open mill, and uniformly dispersing the filler in a rubber matrix under the action of high shear force. The raw rubber has high viscosity, so that the dry mixing is always the process with the largest energy consumption in the processing process, and simultaneously, the dry mixing can cause a large amount of dust pollution, thereby not only harming the health of operators, but also having great influence on the subsequent processing quality. In the production process of rubber, a mixing process which saves more energy than dry mixing, ensures more uniform filling in the rubber and has more excellent comprehensive performance of the rubber is constantly pursued by rubber industry personnel. The wet mixing of the rubber solution which appears in recent years can realize good dispersion of the filler in the rubber matrix, and is gradually noticed by people. The wet mixing technology is firstly proposed by the cabot company in the U.S., and refers to a method for preparing rubber compound by adding fillers such as carbon black, white carbon black, montmorillonite and the like when rubber is still in a natural glue solution or a synthetic glue solution, uniformly mixing and dispersing the fillers through mechanical stirring, and then carrying out coprecipitation. The performance research on rubber products shows that the wet mixing has the advantages of uniform filler dispersion, energy-saving process, good product performance and the like.
The mixed rubber is formed by blending more than two kinds of raw rubber, can modify a rubber solution in a blending mode to obtain good performance, and is widely applied to the industry at present, but the rubber solution used for blending sometimes has larger difference in density, intersolubility and viscosity, so that the blending needs to be finished by stirring for a long time, and the mixed rubber is not suitable for the requirement of modern production.
Disclosure of Invention
In order to solve the technical problem, the invention provides a blending method of a polymerization glue solution and a dissolving glue solution.
The complete technical scheme of the invention comprises the following steps:
a method for blending a polymerization glue solution and a dissolving glue solution comprises the following steps:
(1) preparing a polymerization glue solution and a dissolving glue solution;
(2) respectively adding the polymerized glue solution and the dissolved glue solution into a glue solution blending stirring and shearing device for stirring, shearing and blending, wherein the stirring and shearing device comprises a stirring cylinder, a first inlet, a second inlet, a first stirring shaft, a second stirring shaft, a first stirring motor, a second stirring motor, a shaft sleeve and stirring blades; the stirring cylinder is of a cylindrical structure, a first glue solution inlet and a second glue solution inlet are formed in two side sides above the stirring cylinder, a first stirring shaft and a second stirring pump which are arranged in opposite directions are arranged in the cylinder, the middle sections of the first stirring shaft and the second stirring pump are wavy linear, two ends of the first stirring shaft and the second stirring pump are linear, a straight line section on one side of the first stirring shaft penetrates through the cylinder to be connected with a first stirring motor, a straight line section on one side of the second stirring shaft penetrates through the cylinder to be connected with a second stirring motor, and the position of the wave crest of the first stirring shaft corresponds to the position of the wave trough of the second; the stirring shaft is sleeved with a plurality of shaft sleeves, each shaft sleeve is provided with a group of stirring blades, the stirring blades are in the vertical direction, and the shaft sleeves are fixedly connected with the stirring shaft.
Each group of stirring blades is 6 and is axially arranged around the stirring shaft.
The stirring blade includes a supporting rear portion for providing strength and a blade portion for shearing.
The thickness of supporting part is greater than the cutting part, passes through pitch arc and fillet transitional coupling between the two.
During stirring, the polymerized glue solution and the dissolved glue solution are respectively added into a glue solution blending stirring shearing device through a first inlet and a second inlet, a stirring motor is started to drive a first stirring shaft and a second stirring shaft to relatively rotate, wherein the rotating directions of the first stirring shaft and the second stirring shaft are opposite, the blended liquid is stirred up and down due to the fact that the stirring shaft is wavy, the blended liquid above the first stirring shaft is taken downwards, the blended liquid below the second stirring shaft is taken upwards by the second stirring shaft, the first stirring shaft and the second stirring shaft are mixed in the middle position, the blended liquid is subjected to overall axial mixing, meanwhile, in the stirring process, the stirring shaft drives blades to rotate, and local shearing stirring of the blended liquid is achieved.
Compared with the prior art, the improvement of the invention is as follows: adopt wavy (mixing) shaft, the paddle can be cuted on the (mixing) shaft, can make blend liquid carry out holistic axial mixing through wave (mixing) shaft, utilizes the paddle to carry out local shear stirring to blend liquid when, wherein the rotation direction of first (mixing) shaft and second (mixing) shaft is opposite, makes blend liquid mix at central authorities, has solved the problem at stirring dead angle, adopts auger etc. to stir the mode of mixing among the prior art, is showing and has improved stirring effect.
Drawings
FIG. 1 is a schematic structural diagram of a blending device of the present invention.
Fig. 2 is a partial schematic view of the blade structure of the present invention.
In the figure, 1-stirring cylinder, 2-first inlet, 3-second inlet, 4-first stirring shaft, 5-second stirring shaft, 6-first stirring motor, 7-second stirring motor, 8-shaft sleeve and 9-stirring blade.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
(1) Preparing a polymerization glue solution and a dissolving glue solution; the polymerization glue solution is prepared by replacing high-purity nitrogen in a reactor for deoxidation, adding a mixture of cyclohexane and hexane, adding butyl lithium, heating, adding a mixed monomer of 200 parts of styrene and 50 parts of butadiene for polymerization to obtain the polymerization glue solution, wherein the used dissolving glue solution is prepared by mixing solution polymerized styrene-butadiene rubber and hexane in a mass ratio of 1: 8. Adding into a stirring and shearing device, stirring at the stirring speed of 1200rpm, controlling the stirring temperature at 45 ℃, and stirring for 6h to obtain a solution of the solution polymerized styrene-butadiene rubber.
(2) Respectively adding the polymerized glue solution and the dissolved glue solution into a glue solution blending stirring and shearing device to stir, shear and blend the blended solution, wherein the stirring and shearing device comprises a stirring cylinder body 1, a first inlet 2, a second inlet 3, a first stirring shaft 4, a second stirring shaft 5, a first stirring motor 6, a second stirring motor 7, a shaft sleeve 8 and stirring blades 9. Wherein stirring barrel 1 is the cylindrical structure, top one side is equipped with and mixes liquid entry 2, the below is kept away from one side of entry 2 and is equipped with export 3, first (mixing) shaft and the second stirring that the subtend set up is equipped with in the barrel is taken out, first (mixing) shaft and second stirring are taken out the middle section and are wavy line shape, both ends are sharp, the straightway of first (mixing) shaft one side passes the barrel and is connected with first agitator motor, the straightway of second (mixing) shaft one side passes the barrel and is connected with second agitator motor, from longitudinal section, the position of first (mixing) shaft "crest" corresponds the position of second (mixing) shaft "trough". The stirring shaft is sleeved with a plurality of shaft sleeves, each shaft sleeve is provided with a group of stirring blades, the stirring blades are in the vertical direction, and the shaft sleeves and the stirring shaft are fixedly connected so as to save cost and prolong the service life of the blades. Every stirring paddle of group is 6, and around the setting of (mixing) shaft axial, stirring paddle is including the support rear portion that provides intensity and the cutting part of shearing usefulness, and the thickness of supporting part is greater than the cutting part, through pitch arc and fillet transitional coupling between the two.
The polymerization glue solution and the dissolution glue solution are respectively added into the device through a first inlet 2 and a second inlet 3, a stirring motor is simultaneously started to drive a first stirring shaft and a second stirring shaft to relatively rotate, wherein the rotating directions of the first stirring shaft and the second stirring shaft are opposite, the mixing shaft is wavy to stir the mixing solution up and down, the first stirring shaft brings the mixing solution above the first stirring shaft downwards, the second stirring shaft brings the mixing solution below the second stirring shaft upwards, the first stirring shaft and the second stirring shaft are mixed at the middle position, the mixing shaft drives blades to rotate, and the mixing solution is locally sheared and stirred.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiment according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims (1)
1. A method for blending a polymerization glue solution and a dissolving glue solution is characterized by comprising the following steps:
(1) preparing a polymerization glue solution and a dissolving glue solution; the polymerization glue solution is prepared by replacing a reactor with high-purity nitrogen for deoxidation, adding a mixture of cyclohexane and hexane, adding butyl lithium, heating, adding a mixed monomer of 200 parts of styrene and 50 parts of butadiene for polymerization to obtain the polymerization glue solution, wherein the used dissolving glue solution is prepared by mixing solution polymerized styrene-butadiene rubber and hexane in a mass ratio of 1: 8; adding the solution into a stirring and shearing device, stirring at the stirring speed of 1200rpm, controlling the stirring temperature at 45 ℃, and stirring for 6 hours to obtain solution of the solution polymerized styrene-butadiene rubber;
(2) respectively adding the polymerized glue solution and the dissolved glue solution into a glue solution blending device for stirring, shearing and blending, wherein the stirring, shearing and blending device comprises a stirring cylinder, a first inlet, a second inlet, a first stirring shaft, a second stirring shaft, a first stirring motor, a second stirring motor, a shaft sleeve and stirring blades; the stirring cylinder is of a cylindrical structure, a first glue solution inlet and a second glue solution inlet are formed in two sides above the stirring cylinder, a first stirring shaft and a second stirring pump which are arranged oppositely are arranged in the cylinder, the middle sections of the first stirring shaft and the second stirring pump are wavy linear, two ends of the first stirring shaft and the second stirring pump are linear, a straight line section on one side of the first stirring shaft penetrates through the cylinder to be connected with a first stirring motor, a straight line section on one side of the second stirring shaft penetrates through the cylinder to be connected with a second stirring motor, and the position of a wave crest of the first stirring shaft corresponds to the position of a wave trough of the second stirring shaft; the stirring shaft is sleeved with a plurality of shaft sleeves, each shaft sleeve is provided with a group of stirring blades, the stirring blades are vertical, and the shaft sleeves are fixedly connected with the stirring shaft;
during the stirring, add the polymerization glue solution and dissolve the glue solution respectively through first entry and second entry in the glue solution blending stirring shearing mechanism, start agitator motor, drive first (mixing) shaft and second (mixing) shaft relative rotation, wherein the direction of rotation of first (mixing) shaft and second (mixing) shaft is opposite, because the (mixing) shaft is the wave, stir about mixing liquid, wherein first (mixing) shaft takes the mixed liquid of top downwards, the mixed liquid of second (mixing) shaft below upwards, both realize mixing at the intermediate position, make the mixed liquid carry out holistic axial mixing, simultaneously in stirring process, the (mixing) shaft drives the paddle and rotates, realize carrying out local shearing stirring to the mixed liquid, every group stirring paddle is 6, set up around the (mixing) shaft axial, stirring paddle is including the support rear portion that provides intensity and the cutting part of shearing usefulness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910136819.3A CN110126114B (en) | 2019-02-25 | 2019-02-25 | Blending method of polymerization glue solution and dissolving glue solution |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910136819.3A CN110126114B (en) | 2019-02-25 | 2019-02-25 | Blending method of polymerization glue solution and dissolving glue solution |
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| CN110126114A CN110126114A (en) | 2019-08-16 |
| CN110126114B true CN110126114B (en) | 2020-04-14 |
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| CN201910136819.3A Active CN110126114B (en) | 2019-02-25 | 2019-02-25 | Blending method of polymerization glue solution and dissolving glue solution |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112140381B (en) * | 2019-11-04 | 2022-03-25 | 安徽艺高材料科技有限公司 | Plastic processing wavy compounding mechanism |
| CN112265173A (en) * | 2020-09-14 | 2021-01-26 | 谢海林 | A raw materials mixing stirring device for PVC plastics production |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102489204A (en) * | 2011-12-28 | 2012-06-13 | 中蓝晨光化工研究设计院有限公司 | Double-screw shaft self-cleaning stirring device |
| CN104476713A (en) * | 2014-12-09 | 2015-04-01 | 广西吉顺能源科技有限公司 | Polyurethane foaming machine |
| CN105856447A (en) * | 2016-05-13 | 2016-08-17 | 上海中化科技有限公司 | Inorganic filler and natural latex mixing equipment |
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2019
- 2019-02-25 CN CN201910136819.3A patent/CN110126114B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102489204A (en) * | 2011-12-28 | 2012-06-13 | 中蓝晨光化工研究设计院有限公司 | Double-screw shaft self-cleaning stirring device |
| CN104476713A (en) * | 2014-12-09 | 2015-04-01 | 广西吉顺能源科技有限公司 | Polyurethane foaming machine |
| CN105856447A (en) * | 2016-05-13 | 2016-08-17 | 上海中化科技有限公司 | Inorganic filler and natural latex mixing equipment |
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| CN110126114A (en) | 2019-08-16 |
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