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copper ore thickener solids loading rate

Tailings, also called mine dumps, culm dumps, slimes, tails, refuse, leach residue, slickens, or terra cone terrikon, are the materials left over after the process of separating the valuable fraction from the uneconomic fraction of an ore Tailings are distinct from overburden, which is the waste rock or other material that overlies an ore or mineral body and is displaced during mining

Unlike many other types of equipment, thickeners have no stand bys so if one goes out of commission it cannot be by passed Consequently, if this happens other thickeners have to take the extra load but if the plant incorporates just one thickener then the entire production line must stop

rate copper ore mining thickener in tailing High Rate Copper Ore Mining Thickener for Zambia Ore High Rate Copper Ore Mining Thickener, Mining Thickener, Copper Ore Thickener manufacturer / supplier in China, offering High Rate Copper Ore Mining Thickener for Zambia Ore Mining Plant, Mini Ball Mill, 3t/Hr Ball Mill, PF 1214 China Impact Crusher for Sale for Building Stone and so on

White paper: Debottlenecking of Thickeners in a Changing Environment 2 In assessing the decision to modernize, we consider the elements of an upgrade and the advances in thickening technology that allow operators to meet new challenges Finally, we will discuss the process of modernizing a thickener so as to achieve the clients stated outcomes

This is one variable of many that are inter related and influence thickener performance For example in the steady state, continuous operation of a thickener, if the solids feed rate increases and the bed level remains the same, the underflow discharge rate must increase with the result of solids

Sep 13, 2013 As the solids settle down, the scrappers of rotating rakes scrap the solids towards the underflow cone for withdrawal Liquor component raises to the upper part of the thickener

Hi P Start Rate 206 gpm @ 3 min Hi P Avg Rate 206 gpm @ 7 7 min Hi P Finish Rate 111 gpm @ 3 min with partial recycle High Pressure Pumps Chemical Conditioning FIT From Existing Thickeners AIT pH PLC Paste Thickener 200 t/hr 20 m Diameter 30 wt feed solids 50 wt u/f solids

Effect of settling test procedure on sizing thickeners the required time to reach 90 of the final percent solids for copper ore with 5 and 20 solids were measured to be 24, and 106 7 min, respectively The diameter of the Interkarbon coal preparation plant thickener is 22 m and thickener feed rate is 25 t/h day solids The larger

Visual Encyclopedia of Chemical Engineering Home Menu Videos Thickeners are used to concentrate solids, while clarifiers are used to purify liquids Clarifiers can be circular clarifiers, pictured on the left, or parallel plate clarifiers, pictured on the right the uranium industry, and in alumina, coal, copper, and iron ore production

not change when the pump has to handle higher flow rates Solids, density and Viscosities The pump can handle solids up to 13 with free passages of min 40 mm Density ranges up to 2 0 but ultimately only the motor power is the limiting factor As long as the liquid, at around the pour point, enters the pump it will be pumped

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Beginners Guide to Thickeners Beginners Guide to Thickeners Thickening is a process where a slurry or solid liquid mixture is separated to a dense slurry containing most of the solids and an overflow of essentially clear water or liquor in leaching processes

20m diameter coal high rate thickener 35m diameter Pb/Zn tailings High rate bolted thickener ANDRITZ thickening and clarification solutions are designed to achieve the highest production rates without compromising efficiency

Strategies for Instrumentation and Control of Thickeners and Other Solid Liquid Separation Circuits Instrumentation and Control of Sedimentation Equipment Abstract For example, using underflow density to control the underflow pump rate and solids settling rate to control the flocculant rate Another possible scheme is to use the bed

Table 1 Mines and thickeners information Mine ID Ore type Plant throughput Mtpa SG Thickener type Thickener diameter m Number of thickeners Design U/F solids Duration of record 1 Zinc lead 1 3 11 No thickener N/A 0 30 12 Months 2 Gold 1 2 79 High Rate* 24 1 60 5 Months 3 Copper 14 2 80 High Rate 45 2 45 5 Months

Historically thickeners were introduced to the mining industry in 1905 when the beneficiation of ores by froth flotation was invented in Australia In 1964 there was a project to reprocess the huge piles of tailings that accumulated over the years and recover the remaining copper

A clarifier has upper limits to the amounts of suspended solids that can effectively accumulate while it is in operation accurately conducting the Test for Determination of Clarifier Hydraulic Loading Ratio and the Clarifier Settling Rate studies that are only capable of operating at 30 of the designed flow rate! There are also

copper grade of concentrate is 26 and that of tailings is 0 16 Calculate: Mass flow rate of underflow LF Hρ s solid in UF ings are recycled to rougher and circulating load is 0 25 recycle/ fresh feed The recovery the rates and grade of the

Below is a link to a clarifier sizing spreadsheet developed by HydroFlo Tech By inputting the major design criteria, you can solve for the clarifier projected surface area and overall clarifier volume The spreadsheet operates on Microsoft Excel 2003 or later clarifier sizing calculations Below is a sample shot of the spreadsheet

The BioMag® system uses magnetite fully inert iron ore particles to enhance the clarification process The system uses the worlds fastest overflow rates SOR and solids loading rates SLR Fully oxidized and insoluble Will not rust, degrade or gravity thickener where it thickens to 3 6 solids BIOREACTOR TANK

The results indicated that reducing eductor discharge solid loading increased thickener underflow solid loading Higher thickener feed flow rate also affected eductor performance, reducing its discharge solid loading by 4 wt Application of Knelson Concentrator for Beneficiation of CopperCobalt Ore

ANDRITZ thickening and clarification solutions are designed to achieve the highest production rates without compromising efficiency For all counter current decantation CCD plants: The new and improved ANDRITZ inter stage mixing and dilution system for CCD circuits helps to reduce the footprint and consequently cut CAPEX while maintaining low operating costs

High rate thickener ANDRITZ process engineering will determine the optimum percentage of feed solids for the specific application during laboratory or pilot plant test work The optimum percentage of feed solids will ensure proper flocculation and achievement of maximum fluxes t/m 2 /d

Thickeners and clarifiers use slowly rotating rake arms to separate solid particulate A liquid feed with suspended solids is fed into a tank with a diameter of 5 to 500 feet As the particles settle, angled rake arms move the concentrated slurry toward the center of the tank, where it is removed

Your comments summarize the point but experience will show that the rise rate of the clear water and the area required to handle the solids settle are the critical factors in sizing the high rate thickeners When the solids settled fast, lesser area will be required and how fast it is possible to rake them to center without disturbing the

How a Thickener Works Thickening or dewatering may be defined as the removal of a portion of the liquid from a pulp or slime made up of a mixture of finely divided solids and liquids The early methods of thickening employed plain, flat bottomed tanks into which the pulp was fed until the tank was full

The feed rate to the thickener was expected to be 0 5 m 3 where the solid load is in kg/day and the Floor Loading Rate is in kg iron, copper ores, etc thickeners are used to produce overflows suitable for use as process water in circuits such as flotation The clear overflow water is used for re pulping the flue dusts or fine dust from

The feed rate to the thickener was expected to be 0 5 m 3 where the solid load is in kg/day and the Floor Loading Rate is in kg iron, copper ores, etc thickeners are used to produce overflows suitable for use as process water in circuits such as flotation The clear overflow water is used for re pulping the flue dusts or fine dust from

Thickener sizing and the importance of testwork, especially for paste and the effect of feed variables such as rise rate and solids loading rate, can vary greatly for different thickener feeds International Mining Team Publishing Ltd 2 Claridge Court, Lower Kings Road Berkhamsted, Hertfordshire England HP4 2AF, UK

Thickening Resource Book T H I C K E N I N G 222 2 Table of Contents High rate thickener feed wells are designed to disperse flocculants thoroughly into the feed As a consequence, change in the solids feed rate or the settling characteristics of the solids

a High Rate Thickener As one can see in Figure 3, the continuous simulation achieved an underflow suspended solids concentration of 59 wt when the mud residence time is between 4 and 6 hours This residence time is normally associated with High Density thickeners High Rate thickeners have residence times less than this

CHAPTER 3 SLUDGE THICKENING maximum solids loading The thickener given here will operate successfully as long as the rate of solids applied to the Nominator of the above eqn is the maximum mass loading rate kg/h, the denominator is the max loading rate allowable per unit area

Fundamentally, thickeners and clarifiers are both used to settle solids which results in the separation of liquids and solids Thickeners are used to concentrate solids, while clarifiers are used to purify liquids A thickener will give you a high density underflow while a clarifier will not

Wastewater treatment plants commonly use thickening devices to increase the solids concentration at the end of a particular process step within the activated sludge process Thickening of sludge increases its solids content and reduces the volume of free water thereby minimizing the unit load on downstream processes such as digestion and

High Recovery Rate Gold Carbon In Leach Plant /gold Ore Cyanidation FOB Reference Price:Get Latest Price So this process is gradually replaced by gravity separation, flotation and cyanidation gold leaching process High efficient thickener is performed to increase the pulp density to about 50 solids by mass Get Price Mica Separation Equipments

Chemical Industrial Processes FL High rate thickeners A compact thickener for high capacity thickening which provides performs well in applications like copper concen trates, carbon/pulp feed, mine water, uranium CCD process and many others

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