Blogs
Types of Bearings
Table of ContentsBEARINGS, Ball and RollerBearings, Ball Bearing Pillow BlockBearings, Elevator Take-UpBEARINGS, Rigid Pillow Block BEARINGS, Ball and Roller Chief advantage of the ball bearing is its low coefficient of friction which does not increase at the instant of starting in motion. Other advantages are: economy of space; simplicity of lubrication; practical elimination of wear due to the rolling point
Talc Beneficiation Process – Flotation
Talc Market Specifications Talc has a wide variety of uses and markets, specifications for which call for certain standards of grain size, shape, color, chemical and mineral composition, weight per unit volume, oil absorption and hardness. The paint industry is by far the largest user of talc, but the roofing, ceramics, paper, rubber, cosmetics, textile and insecticide industries are important
Kyanite and Sillimanite Beneficiation Process
Table of ContentsKyanite and Sillimanite Production ProblemsKyanite and Sillimanite Reagent CombinationsMarket Specifications Kyanite and Sillimanite Production Problems The number of commercial deposits is limited and occurrence in schists with iron oxide necessitates concentration to remove iron oxide and excessive silica. Some of the ores have sulphides present, such as pyrite, which must be removed ahead of the kyanite flotation section. Generally,
Cement Rock Beneficiation Process
The below Cement Rock Beneficiation Process flowsheet represents a simplified flow diagram of a cement plant in which beneficiation of raw materials is employed. Using a crude feed of limestone and/or clay, the flowsheet produces raw clay by multi-stage cycloning, and “Sub-A” Flotation upgrades the impure limestone. Turbine-type Agitators are used for storage and homogenous mixing of the raw mill feed
Underground Mine Fire Prevention
During the winter and spring of 1917, an unprecedented number of underground fires occurred in the Butte district. With one exception, these fires were caused by the failure of electrical equipment, and called attention to the increased fire hazard in underground mining operations occasioned by the extensive use of electricity. Five local conditions that contributed toward a heavy fire risk
Small Portable Gold Process Plant
Table of ContentsPortable Gold Processing Plant for SalePortable Gold Processing Plant Equipment ListProcessing Circuit Options of Portable Gold Plant This arrangement and flowsheet of a Mini Portable Gold Processing Plant permits several mineral separations by flotation and provides for the possible recovery of other minerals by gravity concentration. The flowsheet is ideal for a pilot-plant in field testing of ores to
Assay Laboratory Equipment
Laboratory Assay Equipment Proper assay equipment is an integral part of every complete ore dressing laboratory and also will find practical use in many industrial and chemical laboratories. No less important are the benefits derived by mining companies through maintaining their own assay laboratories. A private assay laboratory allows the company to set up a more complete and regular schedule for
Vanadium Extraction Process
Table of ContentsThe Flowsheet of Vanadium Extraction ProcessRepulping and LeachingEMF AdjustmentSolvent ExtractionStripping and Regeneration of OrganicPrecipitation, Filtration and Fusion The extraction and recovery process of vanadium as a by-product from the tailings of a uranium processing plant poses many problems. In this study vanadium is recovered from impounded resin-in-pulp tailings and from the current tailings of a uranium plant which did not include a circuit for
Solvent Extraction Training SX Course
Solvent extraction, the process of extracting a specific metal valve from a solution to concentrate and purify that metal is a multistage process involving liquid ion exchange. In the first stage the metal value, in this example copper, exists in the aqueous leachate as an copper ion. The aqueous leachate is mixed with a organic solution containing a ion specific
Tin Ore Extraction
Table of ContentsThe Tin Ore Processing FlowsheetCRUSHING Circuit of Tin OreSIZING AND GRINDING Tin OreTIN JIGHYDRAULIC CLASSIFICATION AND TIN TABLINGTIN UPGRADING SECTIONTin Beneficiation Summary The flowsheet below Explains the Extraction of Tin Ore as shown by a study adapted to the concentration of a lode tin deposit. Cassiterite (SnO2) is very friable and special considerations to crushing and grinding of the ore are necessary
Chemical Smelting
Table of ContentsGeneral Chemical Smelter FlowsheetAutoclave LeachingRecovery of Copper and ZincRecovery of LeadRecovery of Gold and SilverTotal Operating Cost Some of us who have been acquainted with the present methods of production of metals, and who have had an opportunity to witness the impact of some of the newer chemical techniques on metallurgy, have become convinced that it is possible
Silver & Cobalt Processing by Gravity and Flotation
Table of ContentsThe Silver Cobalt Extraction FlowsheetCRUSHING Silver Cobalt OreSilver Cobalt Ore GRINDINGGRAVITY TABLE CONCENTRATION of Silver Cobalt MineralsSilver Cobalt FLOTATION CircuitTHICKENING AND FILTRATIONSAMPLINGPROJECTED PLANT OPERATING COSTS The treatment of complex silver cobalt ores occurring with antimony and arsenic require special metallurgical processing to produce concentrates most advantageous for smelting. Gravity concentration is used to initially recover a high percentage of the
How to Make Gravel and Sand
Table of ContentsThe Gravel and Sand Making FlowsheetCRUSHINGSCRUBBING AND SIZINGSAMPLING AND BLENDING TO MEET SPECIFICATIONS The processing of extensive pit run gravel in many instances employs a permanent or semi-permanent plant installation with a flexible system for movement of feed. The plant must be designed to produce a variety of product sizes and be capable of changing and blending products
Concentrator Metallurgical Continuous Sampling Analysis
Table of ContentsSAMPLING FOR WET ANALYSISSAMPLING FOR DRY ANALYSISFLOWSHEET NO. 1-Sampling for Wet AnalysisFLOWSHEET NO. 2-Sampling for Dry AnalysisCompare BOXA-II-III & Outotec Courier C5/6i SL Development and use of on stream analysis for both wet and dry processes promises great advantages in processing and quality control. In many cases the volume handled by an on stream analyzer must be far
Electrolytic Refining
Table of ContentsBasis of Electrolytic Refining MethodsElectro-refining and Electro-winningElectro-refiningCopper:Lead:Nickel:Silver and Gold:Precious MetalsElectro-winningZinc:Copper, Nickel, Cadmium:Precious Metals The list of pure non-ferrous metals so widely used in modern industry includes many that are produced by electrolytic means, such as copper, zinc, nickel, aluminum, magnesium, lead, sodium, cadmium, calcium and many others. In the case of some metals, ordinary fire or chemical methods of
Phosphate Flotation
Table of ContentsThe Phosphate Flotation FlowsheetPhosphate GRINDINGPhosphate DESLIMINGPhosphate FLOTATIONFILTERING AND DRYING PhosphatePhosphate TAILING DISPOSALSAMPLINGTesting Phosphate in LABORATORYSummary The phosphate-bearing formations in the West constitute relatively thick beds of phosphatic sandstones and shales that can be mined on a large scale employing open pit methods. The mineralogical characteristics vary considerably and require various treatment conditions for specific areas. For Phosphate, flotation is, in general,
Talc Grinding
Table of ContentsPROCESSES AND MACHINES NOW IN USEBall MillsTube MillsVertical Roller MillsHorizontal Burr MillsSelection of MillGrinding 300-mesh MaterialElectric Motors and BinsDISCUSSION The milling of talc, as is the case with many non-metallic minerals, until recently, has not received adequate technical consideration, for the talc industry has become of importance only within the last decade. At first, talc was used only