INTRODUCTION OF PRODUCT                                                                                                                                                                                                                         

HEAVY CALCIUM CARBONATE POWDER QUALITY ULTRA-FINE GRINDING MILL EQUIPMENT is a new type of high-fine grinding equipment newly developed by Guilin Hongcheng accumulated years of production and R&D experience. The product fineness can be adjusted between 325 mesh and 2500 mesh according to needs, and the product fineness is once The performance can reach D97≤5um. This machine has comprehensive mechanical crushing properties such as roller compaction, milling, impact, etc., and is widely used for high-fine crushing of various non-metallic minerals with Mohs hardness below 7 and humidity within 6%, such as activated carbon. HCH2395 is currently the larger high-fine ring roller mill in China.

Particle size of finished product: 5-45μm (325-2500 mesh)

Production capacity 1-22t/h

Application of heavy calcium carbonate powder

Because calcium carbonate is rich in resources, widely distributed, and simple in processing technology, it has low price, high purity (content up to 98-99%), high whiteness (up to 94%), low oil absorption, low hardness, and good dispersion. Good thermal stability (will not decompose below 400℃) and other excellent characteristics, so it is widely used in industrial fillers.

1. Plastic

Adding heavy calcium powder to plastics can play the following roles: increase the cost to reduce the cost; improve the heat resistance of plastic products; improve the astigmatism of plastics for shading and matting; improve the electroplating performance or printing performance of plastic fabrics; To reduce the dimensional shrinkage of plastic products, it should be dimensional stability.

2. Papermaking

Heavy calcium powder for papermaking can be roughly divided into three categories: fillers, primer pigments and top coating pigments.

2.1. Applicable paper type and filling amount for heavy calcium powder as filler:

2.2. The paper grades suitable for heavy calcium powder as paint pigments and the proportion in the total amount of paint pigments:

3. Paint

Heavy calcium powder has the functions of weather resistance, color retention and mildew resistance, and is suitable for exterior wall coatings. Mainly used for original paint, putty, wrinkle paint, building exterior wall latex paint.

4. Other

Heavy calcium powder is also used in rubber, adhesives, sealants, inks, toothpaste, food and medicine.

ADVANTAGES AND FEATURES                                                                                                                                                                                                                        

MILL STRUCTURE                                                                                                                                                                                                                                              

The complete system of HCH lxjm ultra-fine grinding mill is mainly composed of main machine, feeder, classifier, blower, piping device, storage hopper, electric control system, collection system, etc.

WORKING PRINCIPLE                                                                                                                                                                                                                                      

The grinding roller mounted on the rotary table in the main machine chamber rotates around the central axis, and there is a large gap between the grinding roller and the grinding roller pin. Under the action of centrifugal force, the grinding roller swings horizontally outward, so that the grinding roller compacts the grinding ring, and the grinding roller rotates around the grinding roller pin at the same time. Through the gap between the grinding roller and the grinding ring, the material can be crushed and ground by the grinding roller. The grated powder falls to the chassis under the action of gravity and is blown to the classifier above the main engine for screening under the action of a blower. The air path is circulating, except for the positive pressure from the blower to the grinding chamber, the gas in other pipelines flows under negative pressure. The material contains water, which evaporates into gas when it is heated during grinding. The air entering into the gas at various joints in the pipeline leads to the increase of the air volume in the circulating air path. The increased air volume is discharged into the atmosphere through the bellows interface between the blower and the main engine.

HEAVY CALCIUM CARBONATE POWDER PRODUCTION PROCESS                                                                                                                                                          

1. Crushing of raw materials

The large pieces of heavy calcium carbonate are crushed by the crusher to the fineness (15mm-50mm) that can enter the mill.

2. Grinding

The crushed small pieces of heavy calcium carbonate are sent to the storage hopper by the elevator, and then sent to the grinding chamber of the mill evenly and quantitatively by the feeder for grinding.

3. Classification

The ground material is classified by the classification system, and the unqualified powder is classified by the classifier and returned to the main engine for re-grinding.

4. The collection of finished products

The powder that meets the fineness is separated and collected in the dust collector through the pipeline through the airflow. The collected finished powder is sent to the finished product silo through the discharge port by the conveying device, and then is packaged by a powder tanker or an automatic baler.

SUCCESSFUL CASES                                                                                                                                                                                                                                       

   Project Name: Hunan Annual Production of 60,000 Tons of Heavy Calcium Micro powder Project

   Production status:

   Equipment model and number: 1 HCH1395, 1 HCH980

   Processing material: heavy calcium carbonate

   Finished product fineness: 1250 mesh D97

    Equipment output: HCH1395 output: 5.5-6 tons/hour, HCH980 output: 2.5-3 tons/hour.

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