What is the difference between vertical roller mill and ball mill

Vertical roller mill and ball mill are commonly used mine milling equipment, so, what is the difference between vertical roller mill and ball mill? In fact, there are many similarities between the two, but there are also different places such as the following, which specific equipment to choose depends on the actual needs.

 

1. Working principle:

 

When the vertical roller mill is working, the material to be crushed is added into the machine from the feed hopper on the side of the machine shell, and revolves around the vertical axis by the grinding roller device suspended on the plum blossom frame of the host machine. The grinding roller swings outwards and presses tightly against the grinding ring, so that the blade shovels the material and sends it between the grinding roller and the grinding ring. The purpose of crushing the material is achieved due to the rolling and rolling of the grinding roller.

 

The ball mill is a horizontal cylindrical rotating device. The material enters the first chamber of the ball mill evenly from the feeding device through the feeding hollow shaft. The chamber has a stepped lining or corrugated lining. It contains steel balls of different specifications. The centrifugal force brings the steel ball to a certain height and falls, which has a heavy impact and grinding effect on the material. After the material reaches the rough grinding in the first silo of the ball mill, it enters the second silo through a single-layer partition board. The silo is set with a flat lining plate and contains steel balls of the ball mill to further grind the material. The powder is discharged through the discharge grate plate of the ball mill to complete the grinding operation.

 

2. Structural aspects:

The whole structure of vertical roller mill is composed of host machine, analysis machine, pipeline device, blower, finished product cyclone separator, jaw crusher, bucket elevator, electromagnetic vibration feeder, electric control motor and so on. Among them, the vertical roller mill host consists of a frame, an air inlet volute, a blade, a grinding roller, a grinding ring, a cover and a motor.

 

The ball mill is composed of main parts such as feeding part, discharging part, rotating part, transmission part (reducer, small transmission gear, motor, electric control) and so on. The hollow shaft is made of cast steel, the inner lining can be removed and replaced, and the rotating large gear is processed by cast gear hobbing.

 

3. In terms of application scope:

Vertical roller mill is widely used in the grinding and processing of mineral materials in the fields of metallurgy, building materials, chemical industry, mining, etc. It is suitable for processing various non-flammable and explosive materials with a Mohs hardness below 7 and a humidity below 6%, and the fineness of the finished product Between 613μm ~ 44μm, through the combined action of the analysis machine and the fan, it can meet the requirements of different users.

 

The ball mill is suitable for grinding various ores and other materials. It is a key beneficiation equipment for crushing and crushing materials. It is widely used in cement, silicate products, new building materials, refractory materials, fertilizers, ferrous and non-ferrous metal beneficiation As well as production industries such as glass and ceramics, dry or wet grinding of various ores and other grindable materials can achieve a fineness of 425 mesh. According to the different discharge methods, it can be pided into grid type and overflow type.

 

As a professional manufacturer of grinding mills, Shuguang Heavy Machinery sells a variety of different types of mill equipment, including ball mills, Raymond mills, vertical mills, etc.Welcome to contact us for more details.

 

Factory Address: Longjiang West Road, Shangjie District, Zhengzhou City

Contact number: +86-371-67666660 676667

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