Introduction to potassium feldspar
Feldspar group minerals containing some of the alkali metal aluminum silicate mineral, feldspar belong to one of the most common feldspar group minerals, belongs to monoclinic system, usually rendered meat red, yellow, white and other colors; According to its density, hardness and composition and characteristics of the contained potassium, feldspar powder has a wide range of application in glass, porcelain and other industrial manufacturing and preparation of potash.
Application of Potassium feldspar
Feldspar powder is the main raw material for the glass industry, accounting for about 50%-60% of the total amount; in addition, accounted for 30% of the amount in ceramic industry, and other applications in chemical, glass flux, ceramic body materials, ceramic glaze, enamel raw materials, abrasives, fiberglass, welding industries.
1. One of the purposes: glass flux
The iron contained in feldspar is relatively low, easy melting than alumina, relatively speaking, K-feldspar melting temperature is low and broad category, it is often used to increase the glass batch alumina content, thereby reduce the amount of alkali in the manufacturing process of glass.
2. The second purpose: the ceramic body ingredients
Feldspar used as ceramic body ingredients, can reduce shrinkage or deformation occurs due to drying, thereby improving the drying performance and shorten the drying time of the ceramic.
3. The third purpose: other raw materials
Feldspar can also mixed with other mineral material for making enamel, also a most common painting in enameled material. Rich in potassium feldspar contained, it can also be used as raw material to extract potash.
Potassium feldspar Grinding process
Component analysis of Potassium feldspar raw materials
|
SiO2 |
Al2O3 |
K2O |
|
64.7% |
18.4% |
16.9% |
Potassium feldspar powder making machine model selection program
|
Specification（mesh） |
Ultrafine powder processing（80 mesh-400 mesh） |
Deep processing of ultrafine powder（600 mesh-2000 mesh） |
|
Equipment selection program |
Vertical mill or pendulum grinding mill |
Ultrafine grinding mill or ultrafine vertical mill |
*Note: select the main machine according to the output and fineness requirements
Analysis on grinding mill models
1.Raymond Mill, HC series pendulum grinding mill: low investment costs, high capacity, low energy consumption, equipment stability, low noise; is the ideal equipment for Potassium feldspar powder processing. But the degree of large-scale is relatively lower compared to vertical grinding mill.
2. HLM vertical mill: large-scale equipment, high capacity, to meet the large-scale production demand. Product has high degree of spherical, better quality, but the investment cost is higher.
3. HCH ultrafine grinding roller mill: ultrafine grinding roller mill is efficient, energy-saving, economical and practical milling equipment for ultrafine powder over 600 meshes.
4.HLMX ultra-fine vertical mill: especially for large-scale production capacity ultrafine powder over 600 meshes, or customer who has higher requirements on powder particle form, HLMX ultrafine vertical mill is the best choice.
Stage I: Crushing of raw materials
The large potassium feldspar material is crushed by the crusher to the feed fineness (15mm-50mm) that can enter the pulverizer.
Stage II: Grinding
The crushed potassium feldspar small materials 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.
Stage III: Classifying
The milled materials are graded by the grading system, and the unqualified powder is graded by the classifier and returned to the main machine for re grinding.
Stage V: Collection of finished products
The powder conforming to the fineness flows through the pipeline with the gas and enters the dust collector for separation and collection. The collected finished powder is sent to the finished product silo by the conveying device through the discharge port, and then packaged by the powder tanker or automatic packer.
Application examples of potassium feldspar powder processing
Processing material: Feldspar
Fineness: 200 mesh D97
Capacity: 6-8t / h
Equipment configuration: 1 set of HC1700
Hongcheng's potassium feldspar grinding mill has very high operation efficiency, reliable quality and greatly improved benefits. Since purchasing the potassium feldspar grinding mill produced by Guilin Hongcheng, it has greatly improved the user's equipment efficiency in terms of production capacity and unit energy consumption, creating better social and economic benefits for us, It can really be called a new type of high-efficiency and energy-saving grinding equipment.
Post time: Oct-22-2021
