Product Features
The coarse powder mill is mainly used in industrial sectors such as metallurgy, mining, cement, chemical industry, refractory materials, and ceramics. It is widely used in highway construction, water conservancy engineering, construction gravel, and machine-made sand processing, and is very suitable for crushing various soft and medium hard ores for coarse, medium, and fine crushing operations. The coarse powder mill is designed to meet the production needs of customers through direct grinding. Based on traditional mills, it solves the user's demand for mixtures with a fineness of less than 3 millimeters in finished products. The coarse powder grinding machine is a new high-tech series of products developed by grinding equipment experts who have accumulated years of research experience in the grinding industry, collected suggestions and requirements from domestic and foreign customers, and replaced traditional grinding equipment such as Raymond mills, crushers, and ball mills that can only process fine powder particles to meet the requirements of fine sand processing customers. It is widely used in the fine sand industry, such as quartz sand, silica sand, casting sand, and abrasive sand for grinding tools. It is an ideal high-efficiency equipment that can be matched to form a closed-loop production line and can produce products of various particle sizes, with wider use and better results.
Performance advantages
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Efficient and energy-saving
The coarse powder mill adopts the material layer grinding principle to grind materials, with low energy consumption. The power consumption of the grinding system is 20-30% lower than that of the ball mill, and the energy-saving effect is more significant with the increase of raw material moisture. -
Long service life of vulnerable parts
The use of special raw materials for vulnerable parts can generally last for more than one year, and when processing calcium carbonate and calcite, the service life can reach 2-5 years. -
High safety and reliability
Equipped with a limit mechanism to prevent direct contact between the roller sleeve and the grinding disc liner, it avoids destructive and violent vibrations caused by friction and collision between metals, increasing safety -
Environmental protection and cleanliness
The coarse powder mill adopts a fully sealed system, which operates under negative pressure, with no dust and a clean environment.
Structural composition
Composition and structure of coarse powder mill
1. Rack section: composed of side panels, front box components, rear box weldments, etc.
2. Eccentric shaft rotating part: mainly composed of moving jaw, eccentric shaft, bearing, bearing seat, pulley, etc. It is the main part for transmitting power and the working part of the crushing chamber: mainly composed of fixed jaw plates, moving jaw plates, side lining plates, protective plates, etc., and is the working part for crushing materials.
3. Safety device: composed of elbow plate, elbow plate seat, spring, spring pull rod, etc., it is a part of the crusher that plays a safety role under abnormal conditions.
4. Discharge port adjustment device: This device is used to adjust the size of the discharge port and control the particle size of the discharge. It mainly consists of adjusting the fixed inclined block, adjusting the sliding inclined block, top screw bolt, sliding block locking rod, etc.
Working principle
The coarse powder mill is mainly composed of components such as the casing, rotor, striking iron, and grate. The casing is divided into upper and lower parts, which are cut from steel plates and welded together. The remaining parts are connected together with bolts. The interior of the casing is lined with high manganese steel plates, which are easy to replace after wear and tear; An array of hammers with regular distribution are installed on its main shaft, forming a rotor with a turntable and a hammer shaft. The host drives the spindle through a motor and a V-belt, causing the rotor to rotate. The hammer head is stretched outwards by the centrifugal force generated during rotation, and large pieces of material enter the crushing chamber from the feeding port and are then crushed by the high-speed moving hammer. The qualified crushed materials are discharged through the slotted grate at the bottom, while the unqualified ones are left in the crushing chamber and repeatedly acted upon by hammers and striking iron blocks until they can be discharged as qualified. To avoid blockage, the moisture content of the crushed material generally does not exceed 5%.
Technical Parameter
Model number | Rotor diameter (mm) | Rotor length (mm) | Rotor speed (r/min) | Large feed particle size (mm) | Discharge particle size (mm) | Processing capacity (t/h) | Motor power (KW) | Dimensions (mm) |
---|---|---|---|---|---|---|---|---|
CM4008 | 750 | 800 | 800-1000 | <70 | 0-3 | 35-50 | 75 | 2130×1665×1610 |
CM4012 | 900 | 1200 | 800-1000 | <90 | 0-3 | 75-90 | 90 | 2840×2100×2020 |
CM4015 | 1150 | 1500 | 550-800 | <100 | 0-3 | 110-132 | 132 | 3720×2650×2540 |