The HGM High Pressure Grinder Mill is improved on the basis of Raymond Mill. The machine is pressurized by a high-pressure spring, which increases the centrifugal force of the grinding roller, that is, the grinding pressure on the material. It is especially suitable for higher hardness below Mohs hardness level 9.3. Materials and finished products require finer ultra-fine powder processing. The finished product particle size is adjusted in the range of 80-425 mesh, and the smallest can reach 1000 mesh.

Aliases of High Pressure Mill: High Pressure Roller Mill, High Pressure Grinding Mill, Strong pressure pulverizer, Trapezoid Mill .

Suitable materials for High Pressure Mill

YGM series high pressure pulverizer is suitable for grinding limestone, marble, barite, ceramics, slag, dolomite, bentonite, activated carbon, gypsum, feldspar, kaolin, coke, silicon carbide, etc. Mohs hardness is not greater than 9.3, and the humidity is Less than 6% of non-flammable and explosive materials.

The research and development of High Pressure Mill mainly combines advanced grinding equipment at home and abroad, and has been successfully developed on the basis of many experiments and user practice tests. High Pressure Grinding Mill is a mill with more advanced technology, more reliable performance and more efficient output than Raymond mill. The machine adopts a number of patented technologies of pulverizers such as flexible connection and roller linkage pressurization, which completely overcomes the defects of traditional industrial pulverizers in terms of application scope, output, fineness, energy consumption, and service life. Since the design of the ultra-pressure pulverizer fully considers the needs of desulfurization and milling, it can be perfectly matched with the desulfurization equipment, thereby improving the desulfurization efficiency, so it has become the first choice for desulfurization and milling at home and abroad.

Performance characteristics of High Pressure Grinding Mill

High Pressure Mill designs the grinding roller and the grinding ring into a stepped shape with different diameters, which reduces the sliding speed of the material between the grinding roller and the grinding ring, prolongs the rolling time of the material, and improves the Shatter effect.

• 1. The impeller of the high-density powder separator reduces the airflow resistance and improves the powder selection accuracy and output.
• 2. The elastic connection can play the role of stable shock absorption and avoid resonance.
• 3. The impeller adjustment device is convenient and quick.
• 4. Equipped with high-efficiency and energy-saving centrifugal induced draft fan, its efficiency is 83%.
• 5, the pressure spring can play a role in balancing the pressurization.

Equipment composition of High Pressure Mill

The high-pressure and medium-speed pulverizer is mainly composed of a main engine, a fineness analyzer, a blower, a finished cyclone powder accumulator, a bag filter and a connecting air duct. According to user needs, it can also be equipped with auxiliary equipment such as crushers, elevators, storage bins, electromagnetic vibrating feeders and electrical control cabinets.

How High Pressure Mill Works

In the main engine of High Pressure Grinding Mill, the grinding roller assembly is suspended on the grinding roller hanger through the cross arm shaft. The grinding roller hanger is fixedly connected with the main shaft and the blade holder, and the pressure spring is on the outer end face of the cantilever of the grinding roller bearing chamber to The cross arm shaft is the fulcrum to force the grinding roller to press tightly on the inner surface of the grinding ring. When the motor drives the main shaft to rotate through the transmission device, the blade mounted on the blade holder rotates synchronously with the grinding roller, and the grinding roller is in the grinding ring. The circle rotates while rolling. The motor drives the impeller of the analyzer to rotate through the transmission device. The higher the impeller speed is, the finer the powder is.

When the material to be ground enters the grinding chamber, it is shoveled by the shovel and sent to the grinding roller and the grinding ring for rolling. The powder after rolling is brought into the analyzer with the circulating air of the blower, and the qualified fine powder flows into the cyclone collector with the airflow. The powder device is the finished product, and the large particles fall back to regrind. The circulating air returns to the blower to repeat the above process, and the remaining air enters the bag filter for purification. When the grinding roller and the grinding ring reach a certain level of wear, adjust the length of the high-pressure spring to maintain a constant grinding pressure between the grinding roller and the grinding ring. So as to ensure stable output and fineness.
 

Repair and maintenance of the High Pressure Mill

Roller bearing housing wear repair for High Pressure Roller Mill

The assembly requirements of the roller bearings of the High Pressure Roller Mill are relatively strict, and enterprises generally assemble the bearings by cooling them in dry ice. Once there is a gap between the bearing and the bearing chamber, it will affect the normal operation of the bearing, cause the bearing to heat up, and cause the bearing to burn in severe cases. This technique is fast, simple and easy to operate, and in many cases can be repaired in the field.

High Pressure Mill grinding roller, grinding disc liner wear repair

During the use of the High Pressure Mill roller body and the wear-resistant liner, once there is a matching gap, the wear between the body and the liner will increase, and the hot air and cement particles will continue to scour the matching surface, resulting in the generation of grooves. , resulting in an impact collision between the body and the liner, and in severe cases, the liner will crack or even break, and the machine will be damaged, especially the damage of the reducer, resulting in malignant events. Once such a problem occurs, the general repair method is difficult to solve, and the replacement cost is high. The excellent mechanical properties and good plasticity of polymer composites make this problem solved.