Calcium Carbonate Coating Machine

Calcium carbonate coating machine for sale in Daswell machinery. Calcium carbonate powder surface coating machine is used to modify the surface of ground calcium carbonate powder. As a result, the property of the ground calcium carbonate powder will be changed. And with unique characteristics, coated calcium carbonate powder can be applied in wide range areas. Usually the machine is added to existing carbonate plant to produce both coated and normal types of calcium carbonate powder. Of course, you can build a new ground calcium carbonate production line with calcium carbonate coating machine. Henan Daswell machinery offers high quality calcium carbonate surface modification machine to produced coated ground calcium carbonate powder in consistent sizes with high activation rate.

calcium carbonate coating line
Calcium Carbonate Powder Coating Machine

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Features of Daswell Calcium Carbonate Coating Equipment

  1. High coating rate. To improve the high quality of coated calcium carbonate powder, an air classifier is needed. Daswell calcium carbonate surface modification machine can form a closed circuit with the air classifier. In the air classifier, large granule coated calcium carbonate will be returned to the coating machine for further coating. As a result, the finished coated calcium carbonate powder is of high coating rate.
  2. Great economic value. To add calcium carbonate surface coating machine to your calcium carbonate plant, you can produce both coated and natural ground calcium carbonate powder. In light of the versatile usages of both coated and uncoated ground calcium carbonate powder, you can use or sell these end product for different industries.
  3. High capacity with low energy consumption. Daswell calcium carbonate powder surface coating machine has low installed power rating. And since it work with air classifier in a thermal closed circuit, the calcium carbonate coating system can save costs. As a result, Daswell coating machine for calcium carbonate can make high quality coated ground calcium carbonate powder with great capacity efficiently.
  4. High efficiency. Daswell calcium carbonate modification machine needs few stearic acid additives, but can produce quality coated powder calcium carbonate with high coating rate.
  5. High quality coated calcium carbonate powder. The finished coated ground calcium carbonate powder made is of high quality in consistency, with better dispersion, low moisture content and better impact strength.
  6. Environmental friendly. Daswell calcium carbonate coating machine works in negative pressure so there is little dust in the production line.
  7. High quality machine. The core rotor blade of the calcium carbonate coating machine is made of wear resistance steel.
  8. Automatically control. The coating system for calcium carbonate powder in Daswell are fully controlled by computer, so you can monitor and adjust the production line according to your needs easily.
    coated calcium carbonate production
    Calcium Carbonate Powder Coating Equipment

    coating system for calcium carbonate
    Ground Calcium Carbonate Coating Machine

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Daswell Calcium Carbonate Surface Modification Machine

Henan Daswell machinery is a leading supplier of ground calcium carbonate plant in China. Daswell can be the single source of complete designing and planning of your calcium carbonate plant. Besides,we also provides high grade equipment for your calcium carbonate production line with crushing, transferring, grinding, classifying, coating and packing system. Daswell calcium carbonate powder coating equipment is an advanced solution for producing coated calcium carbonate powder. In fact, to get more consistent sizes of coated ground calcium carbonate powder, the  machine should work together with classifier. Actually, as stated above, the coating machine is often a part of ground calcium carbonate plant so that the calcium carbonate production line can produce both coated and uncoated calcium carbonate. And both the coated and natural ground calcium carbonate powder have many applications in different industries. As a result, the calcium carbonate production line with calcium carbonate surface treatment machine can have great economic value.

ground calcium carbonate coating
Calcium Carbonate Coating Line

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What is Coated Calcium Carbonate

According to Wikipedia, powder coating is a type of coating that is applied as a free-flowing, dry powder. More specifically, powder coating is to apply additives to fine powder in order to improve product handling and performance. In the case of calcium carbonate coating, it means to add stearic acid to fine or ultra fine calcium carbonate powder, so that the surface properties of GCC powder can be changed. Initially, the ground calcium carbonate powder is hydrophilic, which can be unfriendly to organics like polymers. However, the plastic industry is also in urgent needs of cheap white filler. If ground calcium carbonate powder is added to plastics, a lot of frictions can occur due to the high surface energy of GCC powder particle. Yet when the surface of GCC powder is modified with steraic acid, the coated calcium carbonate powder become hydrophobic and can reduce the friction when added to plastics.

Model

Capacity

Size

10µm GCC

Rate

(t/h)

(µm)

t/h

%

UCOAT 750

4.0

5-23

3.0

>98

UCOAT 1000

6.0

5-23

5.0

>98

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Daswell Calcium Carbonate Coating Process

How to produce stearic acid coated calcium carbonate? Say you have a calcium carbonate grinding plant using a ball mill and classifier for particle size control, and you want to coating this ground calcium carbonate powder with stearic acid, what is the most suitable coating process for your plant. Of course, there is no one for all solution for coating ground calcium carbonate powder. And we can only provide you the suitable approach according to your needs, such as the particle size of GCC powder, the coating thickness, intended use, allowed residuals and so on. The fit solution is to add a  coating machine and an air classifier. For this coating system for calcium carbonate powder further allows you to control the particle size of coated calcium carbonate, the coating thickness and so on.

The exact calcium carbonate coating process. Firstly, the GCC powder are mixed with stearic acid through respective feeder. Then the mixture of ground calcium carbonate powder with stearic acid is blown by hot air to the calcium carbonate coating machine. In the machine, the high speed turbo mixer starts to coating the powder in atomization process to reach high coating rate. Then the coated calcium carbonate will go to the air classifier carried by air. In the air classifier, the rejected coated calcium carbonate powder will be returned to coating machine for further coating, while the required coated calcium carbonate will go to the product silo. Of course, there is also dust collector and packing machines in the process.

Coated Calcium Carbonate Uses

As stearic acid coated calcium carbonate is hydrophobic, it is more friendly to organics like polymers than ground calcium carbonate powder. As a result, coated ground calcium carbonate powder can be used as filler in plastics for PVC, rubber, decorative paints, slippers, textile and other similar industries. Ground calcium carbonate coating machine in Daswell can produce quality coated calcium carbonate powder with high coating rate, high consistency, controlled particle sizes, and great brightness. As a result, produced coated calcium carbonate can applied in various industries with high economic value. So if you want to treat the surface of fine ground calcium carbonate powder, please contact Daswell for more information about our calcium carbonate coating machine.

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