Can Coal Gangue Vertical Mill Be Used To Produce Kaolin?

How does coal gangue grinding mill produce kaolin? HCMilling(Guilin Hongcheng) provides a complete set of equipment for calcining kaolin from coal gangue. HCM team learned some knowledge about the production of kaolin by coal gangue vertical mill according to the manufacturers who used our equipment.

How does coal gangue powder mill produce kaolin?

Requirements of coal gangue for kaolin production by vertical mill of coal gangue powder mill

First, we need to analyze the raw materials. Coal gangue calcined kaolin is not suitable for calcining all coal gangues to produce kaolin. When we obtain the development resources of coal gangue, we need to ask a professional analysis organization or company to analyze the raw materials, and then get the test report to know the classification of coal gangue, and select the appropriate equipment according to the composition of coal gangue.

In short, it is to first look at the aluminum silicon ratio in the elements of coal gangue. Al Si ratio > 0.5, indicating that Al2O3 has high composition, so it is suitable for calcination to obtain kaolin.

 If the carbon content in the elemental table of coal gangue is more than 20%, it indicates that the calorific value is high, so it is suitable for fuel.

Therefore, due to the analysis of different components such as carbon content, silicon and aluminum content of coal gangue in various regions, coal gangue can be applied in various fields. HCMilling(Guilin Hongcheng) does not directly recommend equipment as soon as it receives customer consultation, which is an irresponsible behavior to customers. Instead, let the customer test and analyze the coal gangue before making a decision.

The production of kaolin by vertical mill of coal gangue powder mill depends on the test of coal gangue

With the test data of coal gangue composition provided by the customer, it is determined that the aluminum silicon ratio is > 0.5. Then it can be determined that coal gangue is suitable for calcining kaolin. So, "How can coal gangue produce ultra white kaolin?" Yeah.

Let's look at the process and requirements. The content of kaolin in coal gangue calcined kaolin is required to be more than 97%, so it is necessary to remove impurities and achieve an iron content of no more than 0.5% to produce ultra white kaolin. The whiteness of the obtained kaolin is enough to be used in the fields of plastics, medicine, ceramics, refractories, papermaking, coatings and so on. Coal gangue calcined kaolin process is to crush coal gangue 200-325 mesh → molding → calcination → crushing → grinding to 325 mesh or finer finished products. The HLM coal gangue vertical mill of HCMilling(Guilin Hongcheng) carries out iron removal process before grinding the coal gangue to effectively remove the iron component, and then the carbon component is removed by the calciner. Centrifugal separation, ultra white calcination and other corresponding processes can be carried out to remove boehmite, iron and titanium mineral impurities in coal gangue to obtain ultra white kaolin.

If you have questions about "how to produce ultra white Kaolin from coal gangue" and the price of HLM coal gangue vertical mill equipment and supporting equipment, or want to visit our production workshop of coal gangue calcined kaolin customers, please contact mkt@hcmilling.com or call at +86-773-3568321, HCM will tailor for you the most suitable grinding mill program based on your needs, more details please check www.hcmilling.com.