Gypsum Grinding Mill Manufacturers

What is gypsum?

Gypsum is a monoclinic system with a high degree of cleavage and easily cracks into thin slices. Hemihydrate gypsum can be obtained by heating gypsum to 100-200 ° C and losing part of crystal water. It is a kind of gas hard gelling material. It has two forms of α and β, both of which are rhombic crystals, but have different physical properties. Alpha hemihydrate gypsum has good and solid crystals; beta hemihydrate gypsum is a flake-shaped and cracked crystal with very fine crystals and a specific surface area much larger than that of alpha hemihydrate gypsum.

Gypsum mill

Brief introduction of gypsum mill

Gypsum mill can also be called Raymond mill, full name in English: Raymond mill, is a kind of milling equipment from abroad. After decades of continuous improvement and innovation, the domestic gypsum mill has been equipped with a high level abroad. At present, it has become an indispensable milling equipment in mining production. It is widely used in metallurgy, building materials, chemicals, cement, and roads. Construction and many other fields. It has the advantages of high production efficiency, convenient use and maintenance, good granularity of the finished product, long service life and high degree of automation.

Processing of gypsum mill

The mill is mainly used to grind materials. Different types of mills can crush materials into particles of different sizes. These different sizes of particles have different purposes. When processing different materials, the The principle is the same for everyone, here is to introduce the processing of gypsum by this machine.

Although the type of the mill is different, its composition and working principle are roughly the same. The main structure of the mill can be divided into the main unit, the pipeline, the fan, and the motor. The main unit is a grinding system, which is mainly composed of grinding rollers and transmission. The shaft, support beam, support beam, grinding ring, blade, blade holder, support shaft sleeve, etc. In the work of the machine, these different parts play different roles, and they assist each other to complete The crushing process of the material.

When the pulverizer is processing gypsum, the specific process is as follows: Use the rapidly rotating grinding roller to send the material entering the host between the grinding roller and the grinding ring for strong pressure grinding. The ground gypsum is generated by a high-pressure fan. Strong wind blows to the powder separator for air selection. Qualified products will enter the powder collection system through the pipeline, and unqualified materials will fall back to the main machine for secondary milling. This cyclic production method can ensure that the finished gypsum particles are uniform. .

Due to the wide application of gypsum in industrial production and construction material production, gypsum mill has a good development in the current market. In addition, China has a large gypsum storage capacity, which also makes its production equipment-mill Has a better future. Of course, when processing gypsum, the selected mill must meet the needs of production. This refers not only to the demand for the finished gypsum product, but also to the demand for production capacity. Only equipment that meets the production requirements can be used for Good processing results from gypsum.

Building gypsum powder production line project (raw materials: natural gypsum ore, desulfurized gypsum, phosphogypsum) The project process is divided into four steps:

Gypsum Grinding Mill Manufacturers

According to the process requirements, the building gypsum production line is usually divided into five parts, which are the crushing system, grinding system, calcining system, storage material conveying system and electronic control system.

(1) Crushing system: The gypsum raw material enters the crusher via a feeder, and the crusher crushes large-scale gypsum ore into small particles smaller than 30mm, which is reserved. According to the size of gypsum raw materials and different output requirements, you can choose the crusher of the corresponding specifications, usually PE jaw crusher, PC hammer crusher or PF impact crusher. In order to protect the environment and clean, dust removal equipment can be equipped to meet environmental protection emission requirements.

(2) Raw material conveying: The crushed gypsum raw material is conveyed to the storage bin for storage by the elevator. The storage bin is designed according to the requirements of the material storage time to ensure a stable supply of materials.

(3) Grinding system: The materials are fed into the mill uniformly and continuously by the electromagnetic vibration feeder for grinding. The pulverized gypsum raw powder is blown out by the air current blown by the blower of the mill and classified by the analysis machine above the main machine. The fineness of the powder conforms to the specifications and enters into the large cyclone collector with the wind. After the collection, the powder is discharged through the powder outlet pipe to become the finished product. The finished product falls into the screw conveyor and is transported to the next system for calcination. The entire air system is hermetically circulated. A bag filter is introduced from the pipe between the large cyclone collector and the blower to remove dust in the air and then discharged to the environment to ensure the environment is clean. The material passing through the grinding system is changed from a particle size of 0-30mm to 80-120 mesh, which meets the fineness requirements of gypsum powder.

The main equipment of the grinding machine are elevator, storage bin, vibration feeder, mill, screw conveyor, bag filter and so on. The mill uses the new patented European version of the mill (patent product number: ZL 2009 2 0088889.8, ZL 2009 2 0092361.8, ZL 2009 2 0089947.9). Because the European version of the mill has a powder selection device, An external classifier is required to make the process simple.

(4) Calcining system: This system mainly includes equipment such as elevator, boiling furnace, electrostatic precipitator, roots fan and so on. The boiling furnace used is a widely used building gypsum calcining equipment in China. It has small equipment, large production capacity, simple structure, not easy to damage, compact equipment, small footprint, low energy consumption, convenient operation, easy automatic control, good product quality, and mature gypsum The seven major advantages of ideal phase composition, stable physical properties, low capital investment, and low operating costs are widely used in the calcination process of natural gypsum and chemical gypsum.

(5) Electrical control system:

The electrical control system adopts the current centralized control, DCS control or PLC control, and each control element selects internationally renowned brand products.

Gypsum mill performance advantages

SBM has been focusing on gypsum mills for more than two decades. The company has always had close technical exchanges with foreign manufacturers. The gypsum mills produced have a high international level. The feed particle size of the gypsum mill produced by the company is generally ≤15-≤30mmmm.

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