raw mill ball mill

china raw material ball mill manufacturers, suppliers, factory - customized raw material ball mill price - cic

Production Capacity0.65-615t/h Discharged Size25mm Ball Loading Weight1.5-338t Application: It can grind cement raw material and other materials in building material, metallurgical, electric and chemical industries....

Introduction: Raw material mill is used widely for grinding (both drying and grinding) cement raw material and other materials in building material, metallurgical, electric and chemical industries. Sorts and Features: a. Common Raw Mill It is used for small & medium-sized raw materials separating system outside the mill. b. Air-swept Mill The feature of Air-swept mill is short and thick in shell, wide in diameter of inlet &outlet trunion, large in grate gap area of diaphragms between drying chamber & grinding chamber, no grate plate in mill outlet. therefore, air speed inside of mill could reach 5m/s due to small resistance and drying capacity is strong since large amout of hot air could get in. c. Outlet Discharging & Lifting Cycle Mill Comparing with Air-swept mill, material, passing through the drying chamber, are discharged at the outlet of grinding chamber by mechanical way, and then fed into separator by elevator which would return the coarse material to mill again for cycle grinding. d. Middle Discharging & Lifting Cycle Mill From the view of drying, it is the combination of Air-swept Mill & Outlet Discharging & Lifting Cycle Mill; from the view of grinding, I workssimilar to secondary stage cycle grinding system. At the front end, it has drying chamber with high drying efficiency. Materials are fed from mill inlet, returned material from separator are fed through mill inlet & mill outlet into rough grinding chamber & fine grinding chamber respectively. Technicial parameters of raw mill: Spec./m (Dia.Length) Speed(r/min) Feeding Size(mm) Capacity(t/h) Griding Media loading(t) Main Motor(KW) Main Reducer Weight(t) 2.27.0 21.7 <25 20~25 35 380 ZD70 62.5 2.27.5 21.7 <25 22~26 35 380 ZD70 64 2.28.0 21.5 <25 23~27 36 475 ZD70 66 2.29.0 21.5 <25 24~28 40 475 ZD70 69 2.47.0 21.5 <25 24~28 36.5 475 ZD70 81 2.48.0 21.5 <25 26~30 42 570 ZD80 86 2.49.0 21.5 <25 28~32 47 570 ZD80 92 2.410 20.3 <25 30~35 52 630 ZD80 108 2.68.0 19.7 <25 30~35 51 630 MBY630 112 JDX630 2.69.0 19.7 <20 40~45 58 710 MBY630 120 JDX630 2.610 19.7 <20 45~50 64 800 MBY710 130 JDX710 3.09.0 18.2 <20 50~55 78 1000 MBY800 158 JDX800 3.011 18.2 <20 55~60 95 1250 MBY800 178 JDX800 3.210 17.8 <25 60~65 100 1400 MBY900 200 JDX900 3.211 17.8 <25 70~80 110 1400 MBY900 215 JDX900 3.47.5 16.9 <20 50~55 80 1000 MBY800 178 3.47.5+1.8 16.9 <20 55~60 70 1250 MBY800 190 3.510 16.8 <20 70~75 80 1250 JS110-A 200 MFY125 3.87.5 16.5 <15 85~90 95 1400 MFY140 185 3.88.5 16.5 <15 90~95 108 1400 MFY140 195 4.68.5+3.5 15 <15 140~150 150 2800 MFY280 325 JS140-A 4.69.5+3.5 15.1 <15 180~190 180 3550 JS150-B 345 4.610+3.5 15.1 <15 200~210 190 3550 JS150-B 370

b. Air-swept Mill The feature of Air-swept mill is short and thick in shell, wide in diameter of inlet &outlet trunion, large in grate gap area of diaphragms between drying chamber & grinding chamber, no grate plate in mill outlet. therefore, air speed inside of mill could reach 5m/s due to small resistance and drying capacity is strong since large amout of hot air could get in.

c. Outlet Discharging & Lifting Cycle Mill Comparing with Air-swept mill, material, passing through the drying chamber, are discharged at the outlet of grinding chamber by mechanical way, and then fed into separator by elevator which would return the coarse material to mill again for cycle grinding.

d. Middle Discharging & Lifting Cycle Mill From the view of drying, it is the combination of Air-swept Mill & Outlet Discharging & Lifting Cycle Mill; from the view of grinding, I workssimilar to secondary stage cycle grinding system. At the front end, it has drying chamber with high drying efficiency. Materials are fed from mill inlet, returned material from separator are fed through mill inlet & mill outlet into rough grinding chamber & fine grinding chamber respectively.

cement raw mill in cement plant for cement raw meal grinding

Applications: It widely used in cement production, silicate products, new building materials, ferrous and nonferrous metal processing, electric power, ceramics and other industries of material grinding.

Raw mill is also called cement raw mill, similar tocement ball mill, it is an importantcement milling equipment used in the cement production process.Raw mill is mainly used for grinding cement raw meal in the cement factory production process. It is also suitable for metallurgical, chemical, electric power and other industrial mining enterprises to grind various ores and other grindable materials.

Cement raw meal is a mixture of various raw materials before cement calcination. It is a mixture of lime raw material (mainly composed of calcium carbonate), clay raw material (aluminosilicate containing alkali and alkali soil) and a small amount of calibration raw material in a certain proportion and ground to a certain fineness. In order to meet the success of the subsequent calcination process, the grinding of the raw meal must be uniform in fineness and ensure the chemical composition of the mixture is stable.

Raw mill in cement plant is very suitable for cement raw meal grinding because of its strong adaptability to raw materials and adjustable grinding fineness. It is the most commonly used grinding machine in the grinding stage of raw materials in the cement plant.

The cement raw mill is generally cylindrical in the horizontal direction, and gears are driven at both ends. After the motor is turned on, the cylinder is rotated. Raw materials are evenly fed into the first inner silo from the feed port at one end. The inner wall of the silo is provided with a step liner or a corrugated liner, and steel balls of different specifications are installed inside as the grinding media.

When the raw material grinding process starts, with the rotation of the cylinder body, the steel balls and materials are brought to a certain height and then fall down, so that the reciprocating cycle can produce impact and grind on the materials. Material is ground at the primary stage in the first inner silo to achieve rough grinding size. After that, the material passes through the single-layer partition board to enter the second inner silo for further grinding.

The inner wall of the second inner silo is a flat liner plate. The number of steel balls is more and the size is smaller than that of the first inner silo. The grinding of materials is more sufficient. In the raw mill grinding process, the grinding material is discharged from the grinder through the discharge hole, and the fineness of the qualified material is sorted by the sorting equipment, while the fineness of the unqualified material is sent back to the cement raw mill by the sorting machine. And unqualified material will be ground until the fineness meets the requirements.

As a ball mills supplier with 22 years of experience in the grinding industry, we can provide customers with types of ball mill, vertical mill, rod mill and AG/SAG mill for grinding in a variety of industries and materials.

optimization of a fully air-swept dry grinding cement raw meal ball mill closed circuit capacity with the aid of simulation - sciencedirect

A raw meal ball mill classification circuit was modelled and simulated.23% capacity increase could be achieved in cement throughput when pre-drying compartment was used in grinding.Static separator operational parameters should be regulated to attain the required cement fineness.

Production capacity of a fully air-swept industrial scale two-compartment KHD Humboldt Wedag cement ball mill was optimized with the aid of simulation. It was proposed to operate the mill as a single compartment by eliminating the pre-drying compartment. In this respect, grinding performance of the air-swept ball mill was evaluated and modelled as a perfectly mixed single tank using the perfect mixing ball mill modelling approach (Whiten, 1974). Static separator was modelled by efficiency curve model (Whiten, 1966). The empirical breakage function required in the estimation of average specific breakage rates was measured by drop-weight technique. The full scale model parameters were used to simulate the raw meal mill grinding circuit with the aid of JKSimMet Steady State Mineral Processing Simulator. Simulation results indicated 23% production capacity increase in cement throughput in case the pre-drying compartment was used in grinding.

raw mill_shanghai clirik ball mill supplier in china---professional ball mill supplier

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vertical raw mill for cement raw meal grinding in cement factory

Applications: It can be used for grinding limestone, gypsum, siliceous, coal and other materials. It is mainly used in cement raw materials grinding section of cement factory, and also be used in concrete and mineral fields.

Vertical raw mill is important equipment widely used in the cement raw meal (cementraw materials) grinding section of the cement production process in cement plant. Because the vertical raw mill is the use of roller grinding principle to crush materials, its vertical raw mill operation is more efficient and energy-saving, product output is more stable, so in cement industry, electric power, metallurgy, chemical industry, metal, and non-metal ore industry is also well used.

Vertical raw mill is widely used in cement industry. In the process of cement production in cement plant, cement raw meal needs to be ground by grinding equipment before calcination. Cement raw meal includes limestone, gypsum, silica, clay, fly ash and other components. Because these materials are mixed together and have special properties, so there is a high requirement for the material suitability of the grinding equipment. The vertical raw mill operation process is simple, the floor space is small, the noise is low, the dust is less, and the adaptability to different materials is strong. So the vertical raw mill particularly suitable for the grinding of cement raw meal in cement factory. The vertical raw mill in cement industry has been applied in the field of medicine and food because of its high grinding efficiency, can dry up to 10% moisture materials and energy saving of 20% 30% compared withball millof the same scale.

As a ball mills supplier with 22 years of experience in the grinding industry, we can provide customers with types of ball mill, vertical mill, rod mill and AG/SAG mill for grinding in a variety of industries and materials.

grinding equipment, calcination equipments products from china manufacturers - citichl heavy industries co., ltd. - page 1

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raw mill_zk ball mill_rotary kiln_grinding equipment

1. Product fineness is adjustable and uniform. Relatively low energy consumption, low wear, low operating costs. High grinding efficiency, less wear and tear. Low investment costs, simple process. 2. The inlet device is consisting of inlet chute and spiral cylinder. There are lining plates in the inlet chute, which extend the working life of the inlet device. 3. Cap is made of high-quality carbon steel and the hollow shaft is cast moulding, combining together to ensure its safe and reliable operation. 4. Inside the raw mill, different stages have different lining plate structure, which will greatly improve the grinding efficiency. 5. Main bearings are sliding bearings, which has good strength, ductility, polymerism, anti-frication, abrasion resistance, lubricity and thermal conductivity. It is able to meet the lubricated requirements of the hollow shaft well and easy to change, applying to low speed, heavy load working condition of raw mill.

5. Main bearings are sliding bearings, which has good strength, ductility, polymerism, anti-frication, abrasion resistance, lubricity and thermal conductivity. It is able to meet the lubricated requirements of the hollow shaft well and easy to change, applying to low speed, heavy load working condition of raw mill.

Raw mill is mainly used for grinding cement raw materials. It can also be used for grinding various ores and other materials in electric power, metallurgy, chemical industry and other industry. Raw mill has features such as high capacity, high efficiency, energy saving and environmental protection.

4. Main bearings are sliding bearings, which has good strength, ductility, polymerism, anti-frication, abrasion resistance, lubricity and thermal conductivity. It is able to meet the lubricated requirements of the hollow shaft well and easy to change, applying to low speed, heavy load working condition of raw mill.