Production Line Center >> Now Location: Antimony ore dressing method
Antimony ore dressing method
Antimony ore, except the dressing method should be based on the ore type, mineral composition and mineral structures and embedded bout of physical and chemical properties as basic conditions to choose outside, still should consider valuable components in metallurgical technology and adapt to the requirements of antimony and eventually economic benefit, and other factors. Antimony ore dressing method has hands choose, re-election, heavy medium chosen, the flotation, etc. Using hand picking is contained content and antimony ore Antimony ore in color, luster, gangue on the shape of the differences. This method although primitive, and the intensity of labor is larger, but still has special mineral for Antimony ore meaning: things often with a bulky because antimony ore monomer crystallization or block aggregation crystal output, hand picking can often get a higher grade block antimony ore concentrate, suitable for antimony metallurgical plant perpendicular type of baking technical requirements; Hand picking can reduce production cost and energy consumption, mineral is widely used in our country so it. According to statistics: our country is the production of 18 major antimony concentrator, the hand picking homework, accounting for 15 seats, including single vulcanization antimony ore 9 mill, vulcanization - four seat mixed antimony ore dressing plant oxidation of four seats, including antimony complex polymetallic deposit the seven mill. Hand picking elected massive antimony ore concentrate, only 7% above containing antimony can be directly into vertical baking with producing, volatile roasting antimony trioxide. Hand containing antimony higher than 45% of the selected by massive sulfide antimony ore melt chromatography making pure three can be born two antimony sulfide (also called for arms production, antimony). Hand picking except picked out high grade massive antimony ore directly outside, also can cast lots of waste stone, in order to improve the selected run-of-mine ore grade. Suitable for hand picking ore, mostly in size between 28 ~ 150 millimeter. Most antimony mill employ a wide level, only individual hand picking mill as Antimony ore north mill narrow level by grading hand picking. Because often contain mud, therefore ore ore washing homework often is a hand before elections indispensable prepare homework. Selected undressed ore after ore washes and then hand picking, without directly than ore washing hand picking effect better. Homework is generally in hand picking on hand picking belt in ore-dressing plant of completion, but there are also many antimony Ore Mountain is in in the mines or finished pithead.
Re-election for most antimony ore applies the mill, because the material things belong to big density and particle size of mineral, easy to use coarse re-election method and the gangue separation. Among them: stibnite density for 4.62 grams/centimeters 3, and the gangue density between 2.6 ~ 2.65 grams/centimeters 3 between, its etc sink (drop) than for 2.19 ~ 2.26, belong to easy to choose ore; Yellow antimony ore density of 5.2 grams/centimeters 3, red antimony ore 7.5 grams/cm density of 3, antimony changes 5.57 grams/centimeters 3, they and the gangue of such heavy (drop) than 2.55 ~ respectively, 3.93 ~ 4.06 and 263 2.76 ~ was 2.86, these three antimony ore easily by density sorting belongs to choose ore. Only water antimony calcium, stone density 3.14 grams/centimeters 3, and the gangue etc sink (drop) ratio, belong to only 1.29 more difficult to choose according to density sorting ore, but it does not calculate in main composition Antimony ore, do not affect the use of re-election. Anyhow, whether single or sulfide (antimony ore sulphide oxidation Antimony ore, all mixed has better re-election conditions for re-election. And cheap, and can in a relatively coarse granularity range, sorting out far more qualified coarse grained concentrates, and cast lots of the gangue, therefore, re-election is still current antimony ore dressing workers willing to adopt beneficiation method. Sometimes, it even if not directly elected, however as qualified antimony ore concentrate of the caucus homework assignments antimony flotation, also often be accepted, especially flotation at present processing oxidation Antimony ore difficulties many situations, thus re-election became the main processing method Antimony ore oxide. During the antimony ore dressing method, the antimony crusher is the most widekly used crushing equipment in ore processing industry.
Heavy medium dressing always do the homework Antimony ore primary. Enterprise, besides contain strength proof the structure of geode Antimony ore, can use the heavy medium dressing. Heavy medium beneficiating difficulty is aggravating agent choice and medium preparation and recycling. Used as aggravating, the practice showed that the material agent of steel jade waste, grinding wheel factory (is ideal fess). The material for magnetic content 70 ~ 98%, chemical composition mainly silicon and iron, after concentrator preparation system of fine grinding medium to less than 74 microns accounts for 98% for aggravating agent after that the media density in 2.65 grams/centimeters to keep the three or so is entirely possible, and easily recycled. Flotation is chosen the main content antimony ore dressing method. Vulcanization antimony ore of easy float mineral, that is used mostly flotation methods to enhance ShiJing bits ore. Among them: stibnite often use first lead salt as activator, useful also copper salt or lead salt copper salt, then use the usage of collector flotation. Common of collector for butyl xanthate or shale oil and b sulfur nitrogen mixture, foaming agent for loose alcohol oil or 2 oil; Oxidation antimony ore is difficult to float ore.