Classification
Ultra fine mill (full name: Ultra fine powder mill/Ultra fine grinding/Three ring and Four ring Ultra fine mill) is the core equipment for processing micron level ultrafine powders, focusing on high fineness and high uniformity. The finished product fineness is much higher than Raymond mill and high-pressure mill, specifically used for producing high-end fine powders with 325-3000 mesh (5-45 microns).
Vertical mill (also known as vertical mill or vertical roller mill) is a large, high-yield, and energy-saving grinding equipment that integrates crushing, drying, grinding, grading, and conveying. It focuses on large-scale industrial production (cement, slag, electricity, metallurgy, large non-metallic minerals), with a much higher output than Raymond mill/high-pressure mill/ultrafine mill.
Magnetic separator is a core equipment that utilizes the magnetic difference of materials to separate magnetic and non-magnetic substances in a magnetic field. It is widely used in mining, metallurgy, environmental protection, building materials, food and other fields.
Based on the difference of mineral surface wettability, the flotation machine is a core beneficiation equipment that allows target minerals to attach bubbles and float up into foam and gangue slurry by means of agent modification and aeration stirring, so as to realize the separation of valuable minerals from waste rocks. It is widely used for the separation of copper, lead, zinc, gold, molybdenum, coal, non-metallic ores, etc.
Spiral chute (fiberglass spiral, coarse selection/scanning selection)
● Principle: Spiral inclined flow, slurry rotates and flows along the groove, heavy minerals sink in the inner groove, light minerals float in the outer groove, and are automatically discharged in zones.
● Applicable: fine to medium sized (0.02~2mm) tungsten, tin, gold, titanium, coal slurry, and tailings recovery.
Centrifugal beneficiation machine (Nielsen/gold centrifuge, specialized for fine gold particles)
● Principle: A strong centrifugal force field (60-100G) strengthens the density difference, causing fine heavy minerals to be thrown onto the inner wall and light minerals to be discharged with water.
● Applicable: Fine grained gold (<0.074mm), sand gold, rock gold tailings, platinum group metals, with extremely high recovery rates.
Belt chute (blanket machine/cloth ditch machine, fine mud recycling)
● Principle: Tilt the rubber belt slowly upwards, feed the slurry into the lower end, and the heavy minerals are sucked by the belt/blanket and transported to the upper end for unloading, while the light minerals flow away.
● Applicable: Fine mud (<0.045mm) containing gold, tin, tungsten, rare earths, and oxidized iron ore.
Heavy medium cyclone (coarse particle pre selection)
● Principle: In a heavy medium (magnetite powder+water), minerals with a density greater than the medium sink and minerals with a density less than the medium float, approximately sorted by density.
● Applicable: Coarse grained (5-50mm) hematite, manganese ore, lead-zinc ore, coal, pre selected waste rock.
Heavy medium cyclone separator
Key points for selecting reselection machines
● Coarse particles (>2mm): Jig, heavy medium cyclone
● Fine particles (0.074-2mm): shaker, spiral chute
● Fine particles (<0.074mm): centrifugal beneficiation machine, belt chute
● Core advantages: non-toxic, no chemicals, low cost, simple equipment, environmentally friendly
Grading machine (ore processing core grading equipment)
A classifier is a device that separates slurry/powder into coarse particles (return sand/settling sand) and fine particles (overflow) based on particle size and density differences under the action of water flow/air flow/centrifugal force. Its core uses include closed-loop circulation with ball mills, control of grinding particle size, desliming, concentration, and pre selection.
Also known as belt conveyor or conveyor belt, it is the most commonly used continuous conveying equipment in mining, sand and gravel, metallurgy, coal, and building materials, responsible for connecting crushing, screening, and selecting other materials to form a production line.
Scraper conveyor (commonly known as "chute") is a heavy-duty conveying equipment that uses scraper chains to pull and push bulk materials in a chute (machine slot). It is wear-resistant, bendable, and can adapt to harsh environments. It is a core equipment in industries such as coal mining, metallurgy, and building materials.
Circular vibrating screen (referred to as circular vibrating screen) is the most commonly used multi-layer and efficient vibrating screening equipment in industry. Its core is to vibrate the screen body in a circular (or elliptical) trajectory, allowing materials to jump, roll, and quickly classify on the screen surface.
The linear vibrating screen is synchronously driven by dual vibration motors, and the material jumps forward along the linear direction on the screen surface to complete screening, dehydration, and grading operations.
Vibration feeder (most commonly used in mines/sand and gravel)
The vibrating feeder (GZD/ZSW) is the preferred feeding equipment for sand and gravel and mining production lines. Driven by a vibration motor, the ore and stones in the silo are uniformly, quantitatively, and continuously fed into the crusher, effectively preventing material blockage and allowing for preliminary screening of soil and fine materials.
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