CN1125149C - Method and apparatus for preparing superfine modified heavy calcium carbonate for rubber tyre - Google Patents
Method and apparatus for preparing superfine modified heavy calcium carbonate for rubber tyre Download PDFInfo
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- CN1125149C CN1125149C CN99116067A CN99116067A CN1125149C CN 1125149 C CN1125149 C CN 1125149C CN 99116067 A CN99116067 A CN 99116067A CN 99116067 A CN99116067 A CN 99116067A CN 1125149 C CN1125149 C CN 1125149C
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Abstract
The present invention relates to a preparation method and a device for superfine modification coarse whiting for rubber tyres. The preparation technology comprises the following steps: slurrying the ordinary coarse whiting by a slurrying stirrer; carrying out superfine grinding; drying and dispersing the superfine coarse whiting by a hollow blade drier and a high-speed eddy pulverizer; finally, adding modifying agents or coupling agents of a certain proportion in a high-speed pugging (mixing) machine, and modifying an obtained mixture at constant temperature to obtain the superfine modification coarse whiting for the rubber tyres. The preparation device is composed of the slurrying stirrer, a slurrying cylinder, a grinding machine, a material receiving cylinder (bucket), the hollow blade drier, a host machine of the high-speed eddy pulverizer and the high-speed pugging (mixing) machine which are connected with each other by a discharge hole and a pipeline. The present invention thoroughly solves the problem that the ordinary coarse whiting can not be used for the rubber tyres, and has the advantages of reduction of cost and power consumption and enhancement of product quality.
Description
The present invention is the preparation method and the device thereof of superfine modified heavy calcium carbonate for rubber tyre (2 μ＞90%), belongs to the modification and the technology of preparing thereof of ceramic.
Used filler---lime carbonate (CaCO in the rubber tyre
3) often be fine particle calcium carbonate, so-called fine particle calcium carbonate is meant lime carbonate (CaCO
3) raw material is through the calcining carbonization and the CaCO that forms
3Powder.Common coarse whiting can not be as the filler of rubber tyre.So-called coarse whiting is meant lime carbonate (CaCO
3) calcite in the raw material grinds and reach the CaCO of certain fineness through directly pulverizing
3Powder.Here common coarse whiting is meant the calcium carbonate powders of the non-modified of its granularity more than 325 orders (being particle diameter 44 μ).It all has infringement to the physicals and the processing characteristics of rubber, so can not be used for rubber tyre because particle is too thick.And fine particle calcium carbonate has as the main drawback that loading material of rubber exists: 1. dust from flying easily takes place in the course of processing, and energy consumption is also higher; 2. wearing no resistance of tire, the total raw material cost is higher.If superfine modified heavy calcium carbonate (2 μ＞90%) can be used for rubber tyre makes filler, then can reduce total raw materials cost, improve the wear resistance of tire, and can reduce energy consumption and dust from flying problem in the course of processing.Yet, the inorganic non-metallic ultrafine powder is the emerging functional materials of rising in recent years, adopt the wet method preparation mostly, and on drying process, at present both at home and abroad mainly based on spraying drying, rotary flashing drying and air stream drying, their common feature is instantaneous drying, and wherein spraying drying has the granulation function concurrently.Main drawback and deficiency are: 1. prior art all is to adopt the hot blast (temperature T≤300 ℃) and the method for material to be dried heat-shift to reach evaporation moisture content, the purpose of dry powder in drying process; Used hot blast is through hotblast stove exchange freezing air, and the hot blast single voiding, can not recycle, and therefore, power consumption is big, and noise is big, and the heat energy utilization rate is low; 2. owing to air intake (hot blast) temperature height, therefore influential to the whiteness of some products (as the coarse whiting ultrafine powder), and reduce inlet temperature, drying efficiency will be descended greatly; 3. because material is carried high-speed motion by hot blast, therefore must be through cyclone dust collection and bag collection, and this mode of gathering dust exactly distributes the original particle size of material and destroyed, the difference powder that mouth comes out that gathers dust, the granularity difference is very big, and promptly dry powder granule is separated by thickness.So, for the size-grade distribution that makes dry powder returns to original state, then need below the main discharge port and a discharge port that respectively gathers dust, a feed bin to be set, and supporting mixing machine, material of different grain size is mixed, this not only consumes electric power, and objectively the uniformity coefficient of powder also reduces greatly than virgin state, thereby has reduced quality product on the whole; 4. since particle contact hot blast must be the evaporation earlier of surperficial moisture content, thereby cause particle agglomeration, greatly influence product performance, this also be at present both at home and abroad still can not fine solution problem.
Purpose of the present invention is exactly for overcoming and solving in the prior art fine particle calcium carbonate to be caused that as the filler in the rubber tyre course of processing easily causes dust from flying, the energy consumption height, the cost height, the shortcoming and the problem of the tire wear difference of making etc., the preparation method and the device thereof of a kind of superfine modified heavy calcium carbonate for rubber tyre of research invention, particularly the deficiency at domestic and international superfine powder drying process is broken through, adopt the original creation technology of the supporting high-speed eddy pulverizer of hollow paddle drying machine main frame combined drying, so that the reserves resource is very abundant, superior in quality common coarse whiting can be prepared into and can be used for rubber tyre, to reduce dust from flying, cut down the consumption of energy, reduce cost, and improve product performance such as wear resistance, can not be thereby also solved common coarse whiting as the problem of rubber tyre filler.
Content of the present invention is the particle diameter that common coarse whiting raw material powder is crushed to ultra-fine (2 μ＞90%), at the Chemical Composition characteristics of ultrafine heavy calcium itself ultrafine heavy calcium is carried out modification then, is fit to the superfine modified heavy calcium carbonate that rubber tyre is used thereby prepare.It comprises the preparation method and the device thereof of the superfine modified heavy calcium carbonate for rubber tyre of step of preparation process and recipe ratio.
Preparation method's processing step: (1) is the common coarse whiting water-ground limestone of 325 orders CaCO
3Raw material is by the slurrying of slurrying stirrer; (2) with ultra-fine disintegrating machine common coarse whiting slurry is ground stripping; (3) adopt the supporting high-speed eddy pulverizer of hollow paddle drying machine main frame combined drying technology that the coarse whiting through the mill stripping is carried out drying and dispersed material; (4) adopt the mixing machine of kneading at a high speed to carry out the high speed modification of kneading; its method of modifying of kneading is: under 105～130 ℃ of temperature condition; in the mixing machine of kneading at a high speed, add coarse whiting ultrafine powder 98.5～99.5%; add properties-correcting agent stearic acid 0.5～1.5% again; or add the basic tricarboxylic acyl titanate of different third (oxygen) of properties-correcting agent, monoalkoxy three (dioctylphosphato) titanic acid ester metatitanic acid class coupling agent 0.5～1.2%, just prepare rubber tyre at last with superfine modified (2 μ＞90%) coarse whiting product.
The equipment configuration of preparation superfine modified heavy calcium carbonate for rubber tyre is formed structural representation as shown in Figure 1, it is mainly by slurrying stirrer 1, slurrying cylinder 2, ultra-fine disintegrating machine 4, cylinder 6 connects material, hopper 7, hollow paddle drying machine 8, hopper 10, high-speed eddy pulverizer main frame 11, the mixing machine 13 of kneading at a high speed connects and composes jointly, its interconnected relationship is that slurrying stirrer 1 is installed in the slurrying cylinder 2, slurrying cylinder 2 is connected with disintegrating machine 4 by connecting tube 3, disintegrating machine 4 is connected with the cylinder 6 that connects material by connecting tube 5, the cylinder 6 that connects material contains mutually with hopper 7 by discharge port and connecting tube and connects, hopper 7 is affixed with the opening for feed of hollow paddle drying machine 8, hollow paddle drying machine 8 contains mutually with hopper 10 by discharge port and connecting tube 9 and connects, hopper 10 is affixed with the opening for feed of high-speed eddy pulverizer main frame 11, and high-speed eddy pulverizer main frame 11 is connected with the mixing machine 13 of kneading at a high speed by discharge port and connecting tube 12.
The present invention compared with prior art has following advantage and beneficial effect: (1) the present invention has thoroughly solved common coarse whiting can not be used for the problem that rubber tyre is made filler, and very abundant, the superior in quality common coarse whiting of energy resource can be fully utilized; (2) the present invention thoroughly overcomes and has solved prior art fine particle calcium carbonate is caused shortcoming and the problem that the dust from flying, energy consumption height, cost height of generation, the rubber tyre of making wear no resistance etc. as the filler in the rubber tyre, make material cost reduce (the material cost per kilogram on average descends 0.08 yuan), (the present invention makes the abrasion [cm that makes the rubber tyre that comes to make the rubber tyre wear resistance raising that comes
3/ 1.61Km] descending on average can be up to 0.095), significantly improve rubber item performances such as rubber tyre; (3) owing to adopt the original creation novel process of the supporting high-speed eddy pulverizer of hollow paddle drying machine main frame, the blade of drying machine and cylindrical shell are hollow, interior negotiable thermal oil, material contacts with cylindrical shell and blade and is dried, and the thermal oil reusable edible, and material advances by duplex in cylindrical shell, thereby advance than carrying the material high-speed row with hot blast, and the prior art of hot blast single voiding compared, power consumption is with 1/10～1/15 of other drying mode of equal yield line, and thermo-efficiency is up to more than 90%, and noise is extremely low.And can control by thermal oil because of drying temperature, regulation range is wide, thereby can better guarantee product whiteness; (4) because the mode of motion of material is a screw propulsion, thereby need not establish any dust arrester installation, not only keep the original particle size of material to distribute and uniformity coefficient, and operating environment quite cleans, further reduced energy consumption simultaneously; (5) because material is stirred upset by duplex while advancing in drying process, thereby particle constantly disperseed, and inside and outsidely can both obtain drying simultaneously, so agglomerating particles significantly reduces and agglomerating particles loose than prior art than prior art; For thoroughly eliminating the particle agglomeration phenomenon, at the discharge port of drying machine, add a cover high-speed eddy pulverizer main frame, in order to abundant dispersed material, just thoroughly solved this phenomenon.And the high-speed eddy pulverizer only plays dissemination at this, therefore the dust arrester installation that has now in the Technology all can be removed, and only keeps high-speed eddy pulverizer main frame and gets final product.
Below Figure of description is further specified as follows: Fig. 1 forms structural representation for the equipment configuration that the present invention prepares superfine modified heavy calcium carbonate for rubber tyre, among the figure: 1 is the slurrying stirrer, and 2 are the slurrying cylinder, and 3,5 are respectively connecting tube, 4 is ultra-fine disintegrating machine, 6 are the cylinder that connects material, and 7,10 are respectively hopper, and 8 is hollow paddle drying machine, 9,12 be respectively discharge port and connecting tube, 11 is high-speed eddy pulverizer main frame, and 13 are the mixing machine of kneading at a high speed, and 14 is discharge port.
Embodiments of the present invention are comparatively simple, it implements available following mode: the enforcement of the equipment configuration of (1) preparation superfine modified heavy calcium carbonate for rubber tyre, as long as by the described device composition of top specification sheets and the relation that is connected thereof connection is installed, just can implements apparatus of the present invention preferably.Wherein: slurrying stirrer 1 can be chosen the stirrer that its power is the spination agitating vane of 11kw; Slurrying cylinder 2 can select that its diameter phi is 1.6m, it highly is the round shape slurrying cylinder of 1.6m for use; Ultra-fine disintegrating machine 4 optional BP-80 types or MB-80 type, MB-280 type disintegrating machine; The optional diameter phi of the cylinder that connects material is 0.8m, it highly is the cylinder of the 0.8m cylinder that connects material; Optional HG-3 type of hollow paddle drying machine or HG-8 type, the hollow paddle drying machine of HG-13 type; Optional WFJ-15 type of high-speed eddy pulverizer or WLFJ-400 type; The optional SHR-200A type of mixing machine of kneading at a high speed or SHR-300A type, SHR-500A type; (2) as long as enforcement of method for preparing superfine modified heavy calcium carbonate for rubber tyre just can be implemented the present invention preferably also by the described processing step step-by-step operation of top specification sheets.The contriver is through long term studies, experiment, a lot of successful implementation examples is arranged, in implementation process, the processing step of front (1)～(3) all are identical, in processing step (4), when adopting the mixing machine of kneading at a high speed to carry out modification, its prescription, processing condition can be chosen in described scope, all can realize the present invention, obtain to be applicable to superfine modified (2 μ＞90%) coarse whiting product that rubber tyre is used.Now enumerate several embodiment shown in following table table 1.
Table 1: ultrafine heavy calcium (mixing) modification embodiment (weight percent meter) that kneads
Claims (2)
1, a kind of preparation method of superfine modified heavy calcium carbonate for rubber tyre is characterized in that: its processing step: (1) is the common coarse whiting of 325 orders-water-ground limestone CaCO
3Raw material is by the slurrying of slurrying stirrer; (2) with ultra-fine disintegrating machine common coarse whiting slurry is ground stripping; (3) adopt the supporting high-speed eddy pulverizer of hollow paddle drying machine main frame combined drying technology to carrying out drying and dispersed material through mill stripping superfine coarse whiting; (4) adopt the mixing machine of kneading at a high speed to carry out the high speed modification of kneading; its method of modifying of kneading is: under 105～130 ℃ of temperature condition; in the mixing machine of kneading at a high speed, add coarse whiting ultrafine powder 98.5～99.5%; add properties-correcting agent stearic acid 0.5～1.5% again; or add the basic tricarboxylic acyl titanate of different third (oxygen) of properties-correcting agent, monoalkoxy three (dioctylphosphato) titanic acid ester metatitanic acid class coupling agent 0.5～1.2%, just prepare the superfine modified heavy calcium carbonate for rubber tyre product at last.
2, the device that the described preparation method of claim 1 uses, it is characterized in that: it is mainly by slurrying stirrer (1), slurrying cylinder (2), ultra-fine disintegrating machine (4), cylinder (6) connects material, hopper (7), hollow paddle drying machine (8), hopper (10), high-speed eddy pulverizer main frame (11), the mixing machine (13) of kneading at a high speed connects and composes jointly, its interconnected relationship is: slurrying stirrer (1) is installed in the slurrying cylinder (2), slurrying cylinder (2) is connected with disintegrating machine (4) by connecting tube (3), disintegrating machine (4) is connected with the cylinder that connects material (6) by connecting tube (5), the cylinder (6) that connects material contains mutually with hopper (7) by discharge port and connecting tube and connects, hopper (7) is affixed with the opening for feed of hollow paddle drying machine (8), hollow paddle drying machine (8) contains mutually with hopper (10) by discharge port and connecting tube (9) and connects, hopper (10) is affixed with the opening for feed of high-speed eddy pulverizer main frame (11), and high-speed eddy pulverizer main frame (11) is connected with the mixing machine (13) of kneading at a high speed by discharge port and connecting tube (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99116067A CN1125149C (en) | 1999-02-23 | 1999-02-23 | Method and apparatus for preparing superfine modified heavy calcium carbonate for rubber tyre |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99116067A CN1125149C (en) | 1999-02-23 | 1999-02-23 | Method and apparatus for preparing superfine modified heavy calcium carbonate for rubber tyre |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1232059A CN1232059A (en) | 1999-10-20 |
| CN1125149C true CN1125149C (en) | 2003-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99116067A Expired - Fee Related CN1125149C (en) | 1999-02-23 | 1999-02-23 | Method and apparatus for preparing superfine modified heavy calcium carbonate for rubber tyre |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103627212B (en) * | 2013-08-16 | 2015-02-25 | 湖南磊鑫新材料科技有限公司 | Preparation method and preparation apparatus for ultrafine heavy calcium coating filler |
| CN103756365A (en) * | 2013-12-04 | 2014-04-30 | 芜湖卓越纳米新材料有限公司 | Surface treatment method for nanometer calcium carbonate |
| CN104402035A (en) * | 2014-11-18 | 2015-03-11 | 江苏群鑫粉体材料有限公司 | Method for preparing superfine active heavy calcium carbonate used in air blowing plastic cloth |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5770131A (en) * | 1980-10-21 | 1982-04-30 | Kanehira Kogyo Kk | Production of filler |
-
1999
- 1999-02-23 CN CN99116067A patent/CN1125149C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5770131A (en) * | 1980-10-21 | 1982-04-30 | Kanehira Kogyo Kk | Production of filler |
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| CN1232059A (en) | 1999-10-20 |
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Free format text: CORRECT: APPLICANT; FROM: SOUTH CHINA UNIVERSITY OF TECHNOLOGY TO: WEIXIONG MACHINERY CO., LTD, SHENZHEN CITY |
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Address after: 518104, No. 32, South Ring Road, Second Star Industrial Zone, manhole town, Shenzhen, Baoan District Applicant after: Weixiong Mechanical Apparatus Co., Ltd. Address before: 510641 Guangdong city of Guangzhou province Tianhe District Wushan Applicant before: South China University of Technology |
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Granted publication date: 20031022 Termination date: 20180223 |