What is the main application of ball mill?

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Ball mills are mainly used in the field of powders to make the material reach a certain fineness. It is mainly used in cement plants, mineral processing plants, thermal power plants, chemical plants, magnetic materials and other industries.

Ball mill is mainly used in the ceramic industry, such as: floor tiles, exterior wall tiles, internal strong bricks, daily porcelain factories, quartz sand factories, steel mills, and so on! Mainly for grinding raw materials!

Ball mill is one of the high-fine grinding machinery widely used in industry, which is the key equipment for crushing after the material is crushed, which can be divided into horizontal ball mill, energy-saving ball mill, overflow ball mill, ceramic ball mill, lattice ball mill.

There are many common classifications of ball mills, if they are divided into according to the length of the mill:

1) Short mill When the length-diameter ratio is less than 2, it is a short mill, or ball mill. The general single chamber is used for coarse grinding or primary grinding, and 2-3 ball mills can also be used in series.

2) Medium and long grinding mill When the length-diameter ratio is about 3, it is a medium and long grinding machine.

3) Long mill When the length-diameter ratio is more than 4, it is a long mill or tube mill. Medium and long mills, which are generally divided into 2-4 silos, are used more in cement plants.

Classification according to the shape of the grinding medium loaded in the mill:

1) Ball Mill The grinding medium loaded into the mill is mainly steel balls or steel sections. This type of mill is the most commonly used.

2) The rod mill is loaded with steel rods with a diameter of 50-100mm as the grinding medium. The ratio of length to diameter of a rod mill is generally as follows:

3) Baseball Mill This type of mill usually has 2---4 bins, the first bin is loaded with cylindrical steel rods as the grinding medium, and the subsequent bins are loaded with steel balls or steel sections.

The ratio of the length to diameter of the baseball mill should be about 5, the ratio of the length of the rod bin to the effective diameter of the mill should be between, and the length of the rod should be about 100mm shorter than the rod bin, so as to facilitate the parallel arrangement of steel rods and prevent crossover and messy rods.

4) Gravel grinding The grinding medium loaded into the mill is gravel, pebbles, porcelain balls, etc. Use granite and porcelain as liners. It is used in the production of white or colored cement and ceramics.

5) According to the most widely used grinding materials, it can be divided into cement ball mill and briquette mill.

There are many specific types of ball mills, and their common point is that they are all horizontally placed rotary cylinders. The difference lies in the grinding body installed in the ball mill cylinder, the shape of the cylinder, the method of ball mill operation, the method of discharging, the method of cylinder support, and the method of production in the form of transmission device.

The classifications are as follows:1It is distinguished by the shape of the cylinder.

Due to the different grinding processes and the degree to which the material is ground, a variety of mills with different length-diameter ratios (the ratio of the barrel length l and the diameter d l d) have emerged. It can be divided into short drum mills, long drum mills, medium and long drum mills and cone mills. 2.

It is distinguished by the abrasive body installed. The steel ball or steel section installed in the cylinder is called the ball mill, and the steel rod installed in the cylinder is called the rod mill, which can be used for coarse grinding, and the product particle size of this mill is relatively uniform, and the length of the steel rod is several times the diameter of the cylinder. The cylinder is filled with gravel, pebbles, and porcelain balls, which is called gravel grinding.

3.Distinguish by mode of operation. Intermittent operated ball mills, continuously operated ball mills.

Among them, the continuous operation of the ball mill can be divided into open flow type and circle flow type. 4.It is distinguished by the discharging method.

Perimeter discharge mills, edge discharge mills, intermediate discharge mills and lattice ball mills. 5.It is distinguished by the method of ball mill barrel support.

Main bearing support and carrier support at both ends. 6.Distinguish by mode of production.

Dry and wet ball mills. 7.It is distinguished by the transmission mode.

Edge drive mills, center drive mills, carrier drive mills and toothless direct drive mills. This article: "》Originally provided by Jihong ball mill manufacturer!

There are many types of ball mills, the common ones are lattice ball mills, ceramic ball mills, batch ball mills, cone ball mills, etc.

There are many manufacturers of ball mills on the market, so what are the types of ball mills, what are they, and the following stellar mining machinery is a detailed introduction;

There are many common classifications of ball mills, if they are divided by the length of the mill;

1): Short mill: short mill with an aspect ratio below 2 is a short mill, or ball mill. The general single chamber is used for coarse grinding or primary grinding, and 2-3 ball mills can also be used in series.

2) Medium and long grinding: when the length to diameter ratio is about 3, it is a medium and long grinder.

3) Long grinder: when the length-diameter ratio is more than 4.

Long mills or tube mills. Medium and long grinding, which are generally divided into 2-4 silos, are more used in cement plants.

Ball mill equipment.

Classified according to the shape of the grinding medium loaded in the mill:

1) Ball Mill The grinding medium loaded into the mill is mainly steel balls or steel sections. This type of mill is the most commonly used.

2) The rod mill is loaded with steel rods with a diameter of 50-100mm as the grinding medium.

The ratio of length to diameter of a rod mill is generally 2.

3) Baseball Mill: This mill usually has 2---4 bins, which are loaded in the first bin.

The cylindrical steel rod is used as the grinding medium, and the steel balls or steel sections are loaded into the silos later.

The length-diameter ratio of the baseball mill should be about 5, and the length of the rod bin should be the effective diameter of the mill.

The length of the rod is about 100mm shorter than the bar bin, so as to facilitate the flat steel bar.

Rows are arranged to prevent crossover and messy sticks.

4) Gravel grinding The grinding medium loaded into the mill is gravel, pebbles, porcelain balls, etc. Use granite and porcelain as liners. Produced in white or colored cement and ceramics.

5) According to the most widely used grinding materials, it can be divided into cement ball mill and briquette mill.

Cement ball mill.

The cement ball mill is a horizontal cylindrical rotating device with an outer gear drive. The rotation of the cylinder generates a centrifugal force that brings the steel ball to a certain height and falls.

Cement ball mill is used to grind cement raw materials, and it is divided into two types: dry and wet.

Tubular ball mills.

After the material is crushed, it is a key equipment for crushing.

Ultra-fine lamination mill.

The ultra-fine laminated ball mill is the most famous high-efficiency and energy-saving mill at present, and it is also the first mill in China.

1 ultra-fine laminated ball mill = crushing and screening system + 1 2 grinding and grading system.

The ultra-fine laminated self-grinding mill truly realizes "more crushing and less grinding", after the use of ultra-fine laminated self-grinding mill, the comprehensive benefits are significant: omitting the medium and fine crushing and screening plant and equipment, omitting the dust removal unit, taking a concentrator greater than 1500 tons per day as an example, it can save investment of more than 200-10 million yuan, and save 20-30% of energy, which is a veritable dust-free crushing and grinding energy-saving and environmentally friendly beneficiation process.

Cone ball mill.

Cone ball mill is a common ball mill in mineral processing production, the machine has changed the original mill structure, so that the body, the base frame is integrated, and can be placed on the foundation plane at one time when installed, the main bearing adopts double row self-aligning roller bearings, which can reduce the energy by 30%, improve the fine particle size, and increase the processing energy by 15 20%. Cone ball mill is the key equipment for crushing the material after it is crushed. Ball mills are widely used in cement, silicate products, new building materials, refractory materials, fertilizers, ferrous and non-ferrous metal beneficiation and glass ceramics and other production industries, for dry or wet grinding of various ores and other grinding materials.

The ball mill is the key equipment for crushing the material after it is crushed. Ball mill is one of the widely used high fine grinding machinery in industrial production, and there are many types of it, such as tubular ball mill, rod ball mill, cement ball mill, ultra-fine laminated mill, hand ball mill, horizontal ball mill, ball mill bearing, energy-saving ball mill, overflow ball mill, ceramic ball mill, lattice ball mill Ball mill is suitable for grinding all kinds of ores and other materials, and is widely used in mineral processing, building materials and chemical industries, which can be divided into dry and wet grinding methods. According to the different discharge methods, it can be divided into two types: lattice type and overflow type.

According to the shape of the cylinder, it can be divided into four types: short drum ball mill, long drum ball mill, tube mill and cone mill.

1. According to the discharge method, it can be divided into: overflow type and lattice type.

2. According to the grinding materials, it is divided into: cement mill, mineral grinding, mineral processing mill, raw material grinding, coal grinding, etc.

3. According to the grinding method, it can be divided into: open circuit grinding, closed circuit grinding or circle flow grinding.

4. According to the grinding medium, it is divided into: ball mill, rod mill and gravel mill.

5. According to the size of the crushed material, it is divided into: crushing mill, high fine grinding, and ultra-high fine grinding.

6. According to the support mode: sliding shoe grinding, bearing grinding and rolling bearing grinding.

7. According to the ratio of length to diameter: short mill, medium and long mill, long mill.

8. According to the transmission position, it is divided into: edge drive mill and center drive mill.

Classification by the shape of the cylinder (by the ratio of length to diameter).

1. Short barrel ball mill: the length of the cylinder L is less than 2 times of the diameter of the cylinder D, that is, the ball mill of L 2D is a short cylinder ball mill, which is usually a single bin structure, mainly used for rough grinding operations or first-stage grinding operations, and its operation efficiency is high, and it can be used in series at the same time by 2-3 ball mills, and its use range is wider.

2. Medium and long barrel ball mill: when the cylinder length is l=3d, it is a medium and long ball mill.

3. Long drum ball mill: long ball mill when the cylinder length l 4d. It is generally divided into 2-4 bins.

Ball mills are divided into, overflow ball mills, and ball mills

Energy-saving ball mills

Cement ball mill.

Rod mills, cement mills,

Dry ball mills

Wet ball mills, etc.

In the industrial industry, the cement ball mill is mainly used for the grinding equipment of cement clinker in the cement production process, and a certain number of steel balls are loaded into the cylinder as the grinding medium, which is the commonly used cement processing equipment in cement plants.

The ball mill is mainly composed of four parts, namely the feeding department, the discharging department, the transmission part and the rotary part. Understanding the internal structure of the ball mill and what parts are included in each part can have a deeper understanding of the ball mill, and it is more conducive to the operation of the ball mill in actual production.

1. Feeding department.

The function of the infeed section is to import materials. It is composed of feeder, end cap, bolt, fan liner, etc. The feeder and end cap require attention to its strength, accuracy, coaxiality, verticality, roughness, etc. Bolts can be made of high-strength bolts.

2. Discharging department.

The discharging department is responsible for the discharge of the grinding material, and supports the mill barrel, fixes the big gear and fixes the rotary part axially. It is composed of end caps, lattice liners, journal inner sleeves, bolts, etc.

3. a transmission department.

The transmission part is composed of a reducer, a small transmission gear, a motor, an electric control, a transmission shaft, a coupling, etc. The cylinder is driven to rotate by the motor through the coupling section by the gear transmission device, and the transmission gear is installed on the transmission shaft, and the transmission shaft is supported on two double-row self-aligning rolling bearings in the bearing seat. The gears are covered with dust covers.

4. a rotary department.

The rotary part is mainly composed of mill cylinder, partition plate, cylinder lining, hollow shaft and other parts. The hollow shaft is made of steel castings, the cylinder lining plate can protect the cylinder, so that the cylinder is protected from the direct impact and friction of the grinding body and the material, and can be replaced.

Ball mill is the key equipment for crushing after the material is crushed, the equipment is the introduction of mature technology in the industry, combined with the company's other mill production technology and experience, the development of new ball mill equipment, widely used in cement, silicate products, new building materials, refractory materials, fertilizers, ferrous and non-ferrous metal beneficiation and glass ceramics and other production industries, a variety of ores and other grindable materials for dry or wet grinding two ways of grinding. Let's introduce the working principle and characteristics of the ball mill to you:

Performance characteristics:Save energyThere is a matching of the drive and grinding energy consumption, which can greatly save energy consumption.

Turnaround Department

The cylinder, liner, medium, bulkhead plate and discharge grate plate of the rotary part are all composed of high-quality original parts.

High grinding efficiency, liner ***The lining and grinding body are made of alumina ceramic, quartz, silex or special materials, and the hard minerals are designed to be free of iron contamination.

The design of the discharge section is flexibleThe design of the discharge port is reasonable, and customers can choose the iron remover according to their own needs.

The feeding section has a large feed volumeThe reasonable design of the feed port increases the feeding capacity.

Closed system to reduce dustThe ultra-fine ball mill and classifier form a closed system, negative pressure conveying, no dust, and reduce the harm to the human body.

How it works:This machine is a horizontal cylindrical rotating device, outer edge gear transmission, two-bin, lattice type ball mill. The material is uniformly entered into the mill a bin by the feeding device through the feeding hollow shaft spiral, which has a stepped lining plate or corrugated lining plate, which is equipped with steel balls of different specifications, and the cylinder rotates to produce centrifugal force to bring the steel balls to a certain height and fall, which has a heavy impact and grinding effect on the materials.

After the material reaches coarse grinding in the first bin, it enters the second bin through a single-layer partition plate, which is inlaid with a flat lining plate and a steel ball in it to further grind the material. The powder is discharged through the discharge grate to complete the grinding operation.