calcium carbonate mill
Ultrafine Grinding mill for Making Calcium Carbonate Powder:
Blog / 08/04/2019

Ultrafine Grinding mill for Making Calcium Carbonate Powder will be listed in this article, and we also invite you provide valuable advice for ultrafine grinding mill. There are two methods to grind calcium carbonate into ultrafine powder: dry grinding and wet grinding: The dry grinding is generally used to produce calcium carbonate powder with d97 ≥ 3-5 μm, and the wet grinding generally produce calcium carbonate with d97 ≤ 3-5 μm.   The dry grinding also use the following ultrafine grinding mill: Raymond mill, suspension roller mill, ball mill, agitating mill, vibrating mill, press roller mill and various mechanical impact mills. Raymond mill is widely used for the production of 38-74μm (200-400 mesh) products, and raymond mill is also used to produce fine powder of d97=30-15μm (500-800 mesh) after modification and configuration of fine classifier;    Ball mill is the main equipment for the large heavy calcium carbonate production line. It is used to produce heavy calcium carbonate products with fineness of d97=5μm, 10μm, 16μm and 45μm equipped with various classifiers.     The vibration grinding mill equipment is mainly used for the production of d97=5μm, 10μm, 16μm products, but its production capacity is not as good as that of ball…

Calcium Carbonate Powder in Polypropylene for Impact Resistance
Blog / 05/31/2019

     Calcium Carbonate Powder in Polypropylene for Impact Resistance The calcite, limestone and marble all contain calcium carbonate mineral. Marble and calcite has high proportions of calcium carbonate, and then limestone and dolomite. These stones all have a Mohs hardness of less than 3. In the world, about 15,000,000.00-20,000,000.00 ton of various forms of calcium carbonate are produced annually, which usually in the shape of powder. The following countries occupies more than half of global calcium carbonate powder production, Italy, China, India, Spain and Portugal. The calcium carbonate powder are often used as the aggregates and additives/fillers, such as ingredient of cement, additives in paper, pvc or paint, which can reduce the production cost and improve the end product performance. In the production, some technics are also needed for the whole mineral processing stage, and some tailor-made mineral solutions can also be provided. Calcium carbonate is widely used in the polymer manufacturing industries. And the processing ways are also double checked by the producer and customer together to ensure the powder can be completely used in the related industries and maximize the effectiveness. By adding calcium carbonate into the polymer system, the mechanical performance can be improved a lot….

How to choose ultrafine calcium carbonate mill
Blog / 05/31/2019

How to choose ultrafine calcium carbonate mill Now more and more ultrafine calcium carbonate mills are needed for producing ultrafine powder used in various industries. But only two or three companies in China manufacture highest quality ultrafine calcium carbonate mill. Other companies cannot manufacture good mills, and they only boast they have. But factually speaking, it is not. Highest quality ultrafine calcium carbonate mills should have the following features: smooth performance for continuous production, almost no breakdown, higher output, low power consumption, environment-friendly. When we choose the ultrafine calcium carbonate mill, we should also focus on the following points: Classifying system precision and efficiency: the turbine classifier wheel is very import, which will influence the efficiency and powder fineness precision and passing rate. Power saving: there is a standard that the ultrafine calcium carbonate mill should meet. The less the power used for producing one ton powder, the better the mill. Lower Investment: this not only means the price of the ultrafine calcium carbonate mill, but also some aspect related to the whole project, for example: how many workers will be needed to operate the ultrafine calcium carbonate mill; the size of the foundation, which also influence the investment; Automation…

Grinding Mill for Coarse Calcium Carbonate Powder
Blog / 11/07/2018

     Grinding Mill for Coarse Calcium Carbonate Powder Calcium carbonate grinding mill can grind limestone/calcium carbonate into different size or particle. The coarse powder grinding mill can make 1000-2000μm or 2360-5600μm and also 100 mesh or 200 mesh powder. This system don’t need classifier, if you want to separate more coarse powder, you should use the vibrating screen. The powder from coarse powder grinding mill can be used in the following industry: The calcium carbonate/limestone can be used in different industry with different ground sizes. This article focuses on the coarse calcium carbonate uses: In Animal&Pet food industry: For poultry, the coarse calcium carbonate powder can help them digest in the gizzard and neutralize the acid in the stomach. 1000-2000μm or 2360-5600μm is suitable for poultry to use to digest and make the egg shell stronger and thicker. In the agricultural industry: calcium carbonate has been a kind of useful additive to soil for agriculture, which can neutralize the acidity in the soil, and also increase the crop yields, and lower the amount of fertilizer use. For the mushroom growing, the calcium carbonate/limestone is put into the outside of spawn-run package. In the asphalt filler industry: asphalt consists of…

Calcium Carbonate Powder Applied in Agricultural Industry.
Blog / 01/08/2018

For agricultural use, the calcium carbonate coarse powder is used to neutralize soil acidity, which can change the PH of the soil layer. The agricultural limestone/calcium carbonate powder should live up to the following criteria: A: Purity: the powder should be good calcium carbonate B: Fineness of granular: 8-80 mesh C: Water content: less moisture more better. For the purity, it influences the calcium carbonate ability to neutralize the hydrochloric acid in the soil. Please refer to the standard of Association of Official Agricultural Chemists. The fineness of the limestone powder can influence the effectiveness of neutralization. A: Coarser than 8 mesh —- 10% effective B: Finer than 8 mesh and coarser than 50 mesh —- 40% effective C: Finer than 50 mesh —- 100% effective The surface area of the calcium carbonate powder and the degree of combining with the soil will influence the rate at which limestone goes into the soil. If the limestone powder is finer than 50 mesh, there is still no research to prove the effectiveness the much finer powder brings. The neutralizing effectiveness remains almost same for 50 mesh or 100 mesh or 200 mesh. As we all know the calcium carbonate is not…

nano calcium carbonate particle has more advantages than micron powder in plastic industry
Blog / 12/06/2017

nano calcium carbonate particle has more advantages than micron powder in plastic industry It has been a common practice to use inorganic fillers in the plastics industry to make the mechanical properties of thermoplastics, such as stiffness, toughness, hardness, heat distortion temperature and mould shrinkage. The filler shape, particle size, aggregate size, degree of dispersion has strong effect on the mechanical and other properties of the composites. Generally speaking, the mechanical properties of the composites filled with micron-sized filler particles are not as good as those filled with nanoparticles of the same filler. The nano-particles can ensure better physical properties, such as surface smoothness and barrier properties. Nano calcium carbonate particle has been the most commonly used inorganic fillers for thermoplastics, such as poly and polypropylene. Before, surface modification of calcium carbonate has been very useful in the polymer-filler interactions. And now, the nano calcium carbonate particles can increase the interfacial area between the filler and polymer. In addition, the nano calcium carbonate particles can provide better surface smoothness and high gloss. The surface-treated calcium carbonate can increase the fracture toughness than untreated CaCO3.

Advantages of Modified Calcium Carbonate Powder
Blog / 12/05/2017

With the help of a direct blending method, calcium carbonate particles are often modified by using different coupling agents. The modified calcium carbonate particles have better dispersion than pristine particles. The coupling agents are adsorbed on the surface of the calcium carbonate particles, which can prevent aggregation. Compared with pristine calcium carbonate particles, the modified particles have more stable colloidal dispersion in ethyl acetate. By combining with silane or titanate coupling agents, the surface properties and dispersion of calcium carbonate particles can be enhanced in the organic media. The agents can form an organic coating layer around the calcium carbonate particles. The prestine CaCO₃ particles have the following disadvantages: hydrophilic character poor dispersion weak combination with polymer matrix With the modified technique, the modified particles have the following advantages: Reduced surface tension Increased compatibility with polymer matrix Better dirt, water and aging resistance Better particles dispersion Better thermal stability Higher polymerization degree Higher hydrophobic property For more information, please email us: grindingmill88@gmail.com

Coated Calcium Carbonate Powder Features and Modifier
Blog / 11/20/2017

Coated Calcium Carbonate Powder Features and Modifier The uncoated CaCO₃ powder is less compatible with organic polymer, and cannot be distributed unevenly in the polymer, which is not good for the contact face between these two material. The coated CaCO₃ is produced by the technology of surface modification with the help of surface modifier or mixed additives. After surface modification, the CaCO₃ powder is coated with a special wrapped structure, which can improve the property of distribution and compatibility with the polymer to increase the shock strength. As the CaCO₃ is inorganic,it is very easy mixed with hydrophilic group in the surface modifier. So the CaCO₃ become more Oleophilic, which is much more compatible with resin organic. The coated CaCO₃ can increase the compatibility between inorganic filler and resin. And also can increase material heat stability and surface smoothness, decrease the usage of resin, lower cost for producing PP, PE, Rubber and etc The common way to do surface modification: Dry the calcium carbonate and remove the moisture with temperature (100-110℃) within 0.5-1 hour (the shorter, the better) Put the dried CaCO₃ into the coating machine; and mix the CaCO₃ with the input of stearic acid (about 0.8-1.0% of the…

China Calcium Carbonate Industry Technological Exchange and Cooperation Conference in 2017
Blog / 11/10/2017

China Calcium Carbonate Industry Technological Exchange and Cooperation Conference in 2017 China 2017 Calcium Carbonate Industry Technological Exchange and Cooperation Conference will be hold in 16 – 17, Nov. 2017. This conference aims to improve calcium carbonate technology and promote related transformation and upgrading. The reports in the conference includes: 1) calcium carbonate kiln development report; 2) calcium carbonate pulverizing development and innovation 3) hydrated lime,coated calcium carbonate powder development and application. Corporation communication: 1) limestone kiln technology development and application 2) Implement environment-protection laws, experience in exhaust gas emission and related solution 3) Development and application of deep processing limestone powder; If you want to know about China Grinding Mill information, please let us know! We can help you tell truth from false. Please email us: grindingmill88@gmail.com

Calcium Carbonate Powder as a Filler in Concrete and Cement.
Blog / 09/25/2017

Calcium Carbonate Powder as a Filler in Concrete and Cement. Filler is often inert in the chemical property. But no disadvantages exist if the filler has some hydraulic properties or if they reacts with products of reaction detrimentally in the hydrated cement past. Filler exists in two forms: one is occurring material, and the other one is processed inorganic mineral materials. When used in the concrete, water demand cannot be increased, unless used with a water-reducing admixture. must not lead to a long-term retrogression of strength of concrete, but such a problem has not been encountered. Because the action of limestone fillers is physical, they have to be physically compatible with the cement in which they are included. For example, at high filler contents, the cement must have a much higher fineness than usual.   How could you get such a filler? The limestone is always in the shape of big-size stone. Please use limestone grinding mill, vertical mill, micro powder mill. More information, please contact us: grindingmill88@gmail.com