Classification
High pressure grinding
High pressure mill (full name: High pressure suspended roller mill/High pressure Raymond mill) is an upgraded version of Raymond mill. Its core is to apply pressure to the grinding rollers through high-pressure springs/hydraulic pressure, resulting in stronger grinding pressure, higher output, and finer fineness. It is suitable for grinding high hardness and high fineness ores.
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Product details
High pressure mill (full name: High pressure suspended roller mill/High pressure Raymond mill) is an upgraded version of Raymond mill. Its core is to apply pressure to the grinding rollers through high-pressure springs/hydraulic pressure, resulting in stronger grinding pressure, higher output, and finer fineness. It is suitable for grinding high hardness and high fineness ores.
1、 Core features (compared to ordinary Raymond mills)
● Pressure method: Install high-pressure springs (1000-1500kg) on the plum blossom rack, and the pressure of the grinding roller is about 1.2 times higher than that of the Raymond mill
● Production: Increase by 10-30% under the same power
● Fineness: Conventional 80-400 mesh (the finest can reach 600-800 mesh)
● Applicable: Non flammable and explosive materials with Mohs hardness ≤ 9.3 and humidity<6%
2、 Structure and Principle
● Host structure: grinding roller, grinding ring, shovel, high-pressure spring, spindle, analysis machine
● Workflow
Materials → Feeding → Grinding chamber
Scraper feeding → High pressure grinding roller compaction
Wind selection and grading → fine powder collection, coarse powder falling back and regrinding
Negative pressure closed circuit, environmentally friendly dust removal
3、 Applicable materials
● Non metallic minerals: limestone, calcite, dolomite, barite, talc, quartz, feldspar, kaolin, bentonite
● Chemical/building materials: gypsum, coal powder, calcium carbonate, bauxite, slag, ceramics
4、 Common models (YGM series)
● YGM65/75/85 (small: 3 rollers, power 15-22kW)
● YGM95 (4 rolls, 37kW, output 2-5.6t/h)
● YGM130 (5-roll, 75kW, output 2.5-9.5t/h)
● YGM160/190 (Large: 6-roll, 132-250kW, Production 8-36t/h)
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Smelting equipment (blast furnace, converter, electric furnace supporting equipment)
Core positioning: The core equipment for coarse crushing of large materials is mainly used at the front end of the crushing production line to crush large raw materials (with a maximum feed particle size of 1200mm) to ≤ 80mm, laying the foundation for subsequent crushing processes. It is an essential front-end equipment for cement and mining production lines. Working principle: Adopting the principle of squeezing and crushing, the large pieces of material falling between the fixed jaw plate and the moving jaw plate are squeezed and crushed through the reciprocating biting motion of the two jaw plates, achieving coarse crushing processing. It is divided into two types: single elbow plate and double elbow plate. The single elbow plate model has higher production capacity and is suitable for high-yield demand scenarios. Core advantages: simple structure, convenient operation, long service life of wear-resistant parts, large crushing ratio, stable output, suitable for high hardness materials (such as limestone and iron ore), low maintenance cost, suitable for various types of production lines from small to large. Adaptation scenarios: coarse crushing of raw materials in cement production lines, coarse crushing in mining, raw material crushing in sand and gravel yards, coarse crushing in construction waste recycling, etc. Corresponding images (high-definition without watermark, available for direct image search): actual photos of the entire jaw crusher, close-up shots of the jaw crusher feed inlet, jaw crusher mining site, and details of the jaw crusher transmission device.
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