Ball Mill vs Hammer Mill

The components of the ball mill and its detailed analysis

Any item has its basic elements. The ball mill has no exception. Its structure: The ball mill consists of the main part of the feeder part, the feeding part, the rotating part, the transmission part (reducer, pinion shaft, electric motor, electric control). Made. The double-layer shaft is made of stainless steel castings, the inner lining is detachable, the rotating large gear is made of aluminum casting hobbing, and the barrel body is set with wear-resistant lining, which has good wear resistance.

The machine runs stably and works safely and reliably. The ball mill server consists of a head, a body made of a metal composite material, a load bearing head and a customer to maintain its rotating needle bearing. It requires a driver part, such as a motor, and a gear shaft, sprocket, V-belt, etc. . The parts called the foliar surface are generally not the main components. In the feeding end of the feeding web end member, there is an inner spiral screw called the spiral blade, and the inner screw in the feed end of the feeding web end member is also called into the inlet. Spiral blades.

In addition, if a screw conveyor is used in the feeding web end auxiliary tool device, there will be a component called a spiral blade in the device, but strictly speaking, it is already a component of the ball mill. According to the raw materials and the method of discharging, the dry ball mill and the wet test small lattice ball mill can be selected. The energy-saving ball mill adopts self-aligning double-row centripetal spherical roller bearing, which has small operating pressure and remarkable energy saving effect. In the head part, a cone head is added to the feeding end of the original head, which not only increases the effective area of ​​the mill, but also makes the material distribution in the cylinder more reasonable. Ball mills are widely used in rare metals, ferrous metals, non-metal dressings, chemical plants, and decorative industries for raw material grinding.

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How to choose a ball mill?

Common beneficiation ball mills mainly include lattice ball mills, overflow ball mills, raw material mills, ceramic ball mills, tube mills, rod mills, etc. The beneficiation ball mill is generally used as a grinding device in mineral processing machinery, suitable for soft or medium hard and very hard ore. With milling. It is an ideal production equipment for alumina, magnesia, gold, copper and cement production lines.

The ball mill produced by our company can grind materials within 25mm. For example, the 2100*4500 lattice ball mill used in the market now can achieve a production yield of 7.2-32, a feed size of 25mm, and a finished discharge range of 0.074mm (200 mesh)-0.6mm (30 mesh); MB2740 The rod mill has an output of 40-150 per hour and a feed size of 25 mm or less. The M35110 tube mill has an hourly throughput of about 75-80 and a weight of about 141.

There are mainly ore dressing production line equipment and ultra-fine grinding system equipment, which can be roughly configured: lattice ball mill, overflow ball mill, raw material mill, ceramic ball mill, tube mill, rod mill, etc.

First check the quality of the assembly of the transmission part, mainly to check the concentricity of the pinion shaft and the low speed shaft of the reducer. Based on the ball mill large gear, the transmission part is installed and adjusted so that the tooth width of the pinion gear is evenly wider than the tooth surface of the large gear.

From the contact marks of the large and small gears, the contact marks should occupy more than 60 of the total length, and the height of the contact marks accounts for about 40 of the full height. If the contact trace is biased towards one end of the flank width, it indicates that the flank is not parallel. If the transmission gear is crushed in a week, the gear clearance is too small, so the pinion should leave the big gear a little. After fixing the position of the ball mill, the ball mill is used to determine the position of the auxiliary beneficiation equipment.

European version of efficient hammer mill

The European version of the high-efficiency hammer mill is a new generation of mills developed and manufactured by our company for the production of 0-3MM coarse powder. The machine follows the working principle of the crusher, which makes up for the shortage of the size range of the traditional mill, and becomes the core equipment for producing coarse powder particles.

working principle

The main machine drives the main shaft through the motor and the V-belt, so that the rotor rotates, and after the bulk material enters the crushing chamber from the feeding port, it is crushed by the high-speed moving plate hammer. The material broken up to meet the particle size requirement is directly discharged from the bottom purlin. The material that does not meet the particle size requirement is in the crushing chamber, and is repeatedly crushed by the plate hammer and the liner on the rotor until it meets the particle size requirement and is discharged. In order to avoid clogging, the moisture content of the pulverized material generally does not exceed 20%.

Product advantages

  • High production capacity, large crushing ratio
  • The machine has the performance advantage of the crusher. Compared with the conventional coarse grinder, the output is higher, the crushing ratio is larger, and the yield is very high. It is suitable for producing coarse sand and coarse powder of 0-8mm.

  • Stable performance, uniform particle size
  • Optimized cavity design, unique working principle, to ensure the excellent performance of the European version of the efficient hammer mill. The machine is equipped with a sifting screen. The broken materials can be discharged through the purlins. If they are not qualified, they will remain in the crushing chamber to ensure uniform grain size.

  • Low investment cost, easy management
  • The European version of the high-efficiency hammer mill has a very high cost performance. Compared with the traditional mill, the workflow is simple, the land occupation is small, the infrastructure is easy, the investment cost is lower, and the management is more convenient.

  • Simple structure, easy maintenance
  • The European version of the high-efficiency hammer mill is mainly composed of casing, rotor, bearing iron and purlin. The casing is embedded with high-manganese steel lining, which is resistant to pressure and wear and has a long service life. It is equipped with hydraulic adjustment device. It can be opened before and after, and the maintenance is convenient and fast, saving downtime.