博文

目前显示的是 七月, 2018的博文

Factors affecting the whiteness of kaolin

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Today, in the industrial sector, kaolin is widely used in dozens of industries such as paper, ceramics, rubber, chemicals, coatings, pharmaceuticals and national defense. The whiteness and brightness of kaolin will directly affect its quality, what are the factors that affect the whiteness of kaolin? Definition of whiteness : Whiteness is the degree to which the surface of a substance is white, expressed as a percentage of the white content. The whiteness is 90%, which is equivalent to 90% of the reflectivity of the standard sample. This index is an important reference quality indicator for papermaking, paint, and industry. Factors affecting kaolin whiteness : Usually, the content of vanadium, chromium, copper, manganese etc in kaolin is small, and has little effect on whiteness. The mineral composition and content of iron and titanium are the main factors affecting the whiteness of kaolin. The forms of iron ore include pyrite, limonite, hematite, rutile, chlorite a...

Titanium dioxide ultrafine grinding mill

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HGM ultrafine grinding mill   can be used to produce ultra-fine titanium dioxide with a fineness of 600     mesh to 3000 mesh, and cast titanium dioxide. The whole set of titanium dioxide powder grinding machine has good environmental performance, saves electricity and labor costs, and the price is reasonable. There are m any manufacturers in the titanium dioxide industry ordered to put into production. 1. What is the function of titanium dioxide? The role of pigment grade titanium dioxide in coatings The coating is a viscous suspension of binders, pigments, fillers, solvents and auxiliaries. It is coated on the surface of the object to form a tough coating film to protect the object. The pigment in the paint has a certain hiding power, which not only can cover the original color of the surface of the coated object, but also can impart a bright color to the coating film to achieve the beauty and decoration. At the same time, the pigment and the fixing agent are...

The preferred equipment for the grinding of kaolin is Hengda Raymond Mill

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Kaolin is currently a popular new product in Chi nese  non-metallic mineral market, because it has a wide range of applications and is well received by users.   Chin ese kaolin reserves are ranked fifth in the world. At present, about 54.6 billion tons are controlled, mainly in the northeast, northwest and Mongolia  etc . Kaolin  powder is mainly used in ceramics, paper, plastics, cable, medicine   etc ,  the demand for kaolin powder is growing more and more at this stage, and its growth rate is as follows: papermaking increases by 2% to 3%, ceramics 5 %, cement 4%   etc ,  other aspects of the growth of kaolin powder is also leaps and bounds. Chin ese demand for kaolin is growing faster than other levels in Asia. Due to the increasing demand for kaolin powder in the above-mentioned industries in recent years, it is very important to find a new type of grinding  equipment. Guilin Hengda Mining Machinery Co., Ltd is a professional ...

Raymond Mill's comprehensive processing of coated calcium carbonate

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Before introducing   the description of Raymond Mill ’ s processing of coated calcium carbonate, we will introduce coated calcium carbonate  at first . First, the level of coated calcium carbonate is introduced. At this stage, the coated calcium carbonate can be divided into pre-coating grade and topcoat grade. Of course, the product developed for gloss or glossiness is generally calcium carbonate. The level is also measured by the 2 nanometer particle diameter.   The precoated coated calcium carbonate refers to a view or function that is not directly apparent, but which gives the most suitable conditions for topcoat application. The usual function is to improve smoothness, fineness and micro-roughness. Therefore, coated calcium carbonate powder is particularly suitable for adaptation. Calcium carbonate for top coating usually has a very small fine particle size, 90% or more is less than 2 UM, and even a small product. For coated calcium carbonate, high solids...

Raymond mill and ultrafine mill from Hengda Mill

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Guilin Hengda Mining Machinery Co., Ltd is a more than 10 years’ grinding equipment enterprise with research, manufacturing and sales together. Company owned its land of area of 4500 square meters, in charge of foundry, machining, cold work, heat treatment, laboratory, inspection, electronic control, assembly workshop, with employees of more than 200, and more than 30 core professional technical personnel, the company has perfect quality management system customer service and service system. For its professional teams, rich experience, premium quality products and awesome services, it has won a wide range of international markets, such as South Korea, Vietnam, Laos, Burma, Malaysia, Indonesia, Peru, Colombia, Venezuela, Nigeria, Egypt etc. The main products of Guilin Hengda are HD series high efficiency Raymond Mill and HGM series Ultrafine Mil l , including other auxiliary grinding equipment and accessories. HD Series Raymond Mill features : 1.High capacity and low cons...

Pay attention to the grinding roller of raymond mill

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First of all, the grinding roller gap adjustment before the start of the Raymond m ill , use the ruler to check the grinding roller clearance, after  working  , the grinding roller clearance is determined by the grinding condition of the grinding material. Use the scale on the adjustment handwheel as a reference. In addition, the Raymond m ill adjusts the pins fixed on the wall panels on both sides to keep the feeding valve parallel to the feeding roller and leave a certain gap. Scraper adjustment When adjusting the blade brush, the grinding roller should be used as the reference. In order to reduce the blade wear, the gravity rod must be moved to the scraper to the maximum extent. The grinding roller is the main component of the raymond mill, it  has a high rotation speed during grinding and is subjected to a large pressure. Grinding teeth should be on the surface of the grinding roller to peel off the endosperm on the bran to meet the technical requirements. Th...

The causes and solutions of Raymond mill's parts damage

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Raymond  mill  is a common grinding equipment, mainly used for Mohs hardness less than 6 , humidity is below 6%, non-flammable and explosive minerals, chemicals, construction and other industries more than 280 kinds of materials p owder processing.  Such as barite, calcite, potassium feldspar, talc, marble, limestone, dolomite, fluorite, lime, activated clay, activated carbon, bentonite, kaolin, cement, phosphate rock , gypsum, glass, bluestone, petroleum coke, chemical raw material insulation materials   etc. Raymond mill will have some problems after a long time of use. Guilin Hengda Mining Machinery  Co., Ltd is a professional grinding equipment manufacturer with more than 10 years experience, which gives relevant solutions to this.     1.Causes of bearing damage : Long-term lack of maintenance and cleaning can not work properly during use, oil cut or seal ring damage, which if the lack of oil may cause the reducer can ’ t work properly...

The three common faults of raymond mill

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1.  The cylinder is deformed When the raymond mill   stops working for a long time, the tight body and part of the material are not discharged, and the cylinder body is deformed under the combined action of the weight of the cylinder itself, the weight of the grinding body and the weight of the material. 2.  Poor lubrication Because the fitting clearance of the newly assembled components is small  and the assembl y, it is difficult to ensure the average of the matching gaps, the lubricating oil does not easily form an average oil film on the friction surface to prevent wear. Thereby reducing the lubrication efficiency, resulting in abnormal early wear of the machine. Severely, the friction surface of the precision fit will be scratched or bitten, resulting in failure. 3.  Looseness occurs The newly processed and assembled parts have deviations in geometric shape and fit size. In the initial stage of use, they are easily affected by alternating ...

Raymond Mill Operators Handover Instructions

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Raymond mill  is one of the main equipments in industrial grinding. The production and installation are technically strong and the maintenance cost is high. Therefore, it should be operated according to the relevant design documents and operating specifications, the daily maintenance and regular maintenance should be carried out. In order to avoid problems such as equipment damage. Guilin Hengda Raymond mill uses high-quality high-manganese steel. The grinding roller s and grinding  rings are installed in normal use specifications and daily maintenance, can be used for more than three years. Among them, daily maintenance mainly refers to the simple operation of adding lubricating oil to key parts. Today, we mainly talk about the matters that need to be paid attention to during the operation of the Raymond mill . First , check the operation of the equipment: If there is any abnormality in the operation of the equipment, it should be shut down immediately for mainten...

The importance of bag filter to Raymond mill

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A  bag filter is used to filter dust and control airflow  in raymond mill . Although the bag filter is not a consumable part, it has a certain life in the process of using the r aymond mill because of its continuous wear during use. After the Raymond mill pulverizes the material, it produces strong dust flow and friction, and directly wears the filter bag. The upper part of the dust bag has a low airflow and a small amount of powder. Generally, the bag is broken from the lower part.  W ear-resistant fabrics  should be the material of dust bag . Flame-retardant filter media and conductive filter media should be used for the dust bag. Because dust combustion is usually caused by friction sparks or explosion sparks, static sparks, hot particles   etc ,  the charge is the most harmful. B ecause chemical fiber filter materials are usually easy to charge, and if the dust is charged at the same time, it is easy to generate sparks. When the weather...

Why does the raymond mill host current rise?

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In the production of the raymond mill , it depends on the electric energy to start, so the magnitude of the current is related to the start-up process of the machine. If the current value meets the start-up requirements, then the machine can start smoothly, and if the current value is too small, it cannot   smooth ly s tart   up ;  if the current value is too large, the motor may be burnt, so the choice of current value is very important, and the current value problem not only exist s  in the start-up phase of the raymond mill , but also in the process of use. One of the effects is the phenomenon of the rise of the host current. Here is the reason for this phenomenon. 1. When the raymond mill is working , the feed is too much, and the excessive feed will cause an increase in the working load of the equipment. At this time, the energy consumption of the machine will increase, so the required power is increased, then the  current  of the host will ri...

Reference basis for grinding mill selection

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Grinding  mill is a kind of equipment for material grinding process, which meets the production requirements of building materials, mineral processing, metallurgy, chemical industry, refractory materials and dry mortar. In the production process of different industries, the required particle size of raw materials is d ifferent, so different equipment is needed for processing. How do you choose these different equipments in production? Grinding  mills on the market now mainly include vertical mills, Raymond mills , trapezoidal mills, ultra-fine mills and coarse powder mills. These different types of milling equipment can achieve ultra-fine grinding. ( 600 -3 000 mesh), fine grinding (80- 600  mesh), coarse grinding (0-5 mm) production of several finished products, so only the right production equipment can be selected to achieve the purpose of production. For the selection of grinding  mill, our main reference is the production demand. The satisfaction ...

The characteristics of Guilin Hengda Grinding Mill

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In the case of the equipment of the mill, it is mainly for the production of smaller finished products, grinding the material to powder, in order to meet the production needs of the construction, chemical, metallurgical and other industries, Guilin Hengda is o ne of the brand manufacturers of non-metallic powder machine, here is to introduce the characteristics of Guilin Hengda mill. Features 1 C omplete range In the process of development, Guilin Hengda  Mining Machinery Co., Ltd  is constantly improving and innovating according to the changing needs of users, and has developed many new models to meet more production needs. Our types of mills with c omplete and diverse models, the current categories include: HD series high efficiency Raymond mill , MR series micro  powder grinding mill ,   HGM series ultra-fine grinding mill   etc. These different series can meet different production needs . Features 2 W ide application Guilin Hengda Mill has ...

Configuration principle of coal fly ash micro powder grinder production line

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M icro powder grinder  is one of applications for the production of coal fly ash. What kind of principle should be used for the configuration of the coal fly ash mill production line? Principle 1 T o meet production needs This mainly refers to the production capacity and the quality of the finished product  and the production of raw materials that can handle  coal  fly ash , so as to ensure production.  A ccording to this principle, the main reference to the nature of the material and the demand for production in the configuration . Principle 2  Affordable Under the premise of meeting the demand for coal fly ash production, the model of the mill that can be selected and the model of its auxiliary equipment may not be single. At this time, if the investment funds are limited, we can choose a relatively economical configuration. In this case, the production demand can be met under the premise of a small cost investment, and the comprehensive ...