sand washer specification

sand washing plants | mclanahan

sand washing plants | mclanahan

McLanahan Sand Washing Plants process sand from its raw state into products that meet various specifications. The process requirements vary depending on the input and desired output, but plants typically scrub, liberate, deslime, wash, classify, decontaminate and dewater the sand, as well as process the effluent stream that results.

For customers who are interested in maximizing yield and producing precisely graded products to the end-user's needs and specifications, it is more likely that a custom sand plant is the correct solution. Whether the sands are natural or manufactured, fine or coarse, well or poorly graded, or required for specialty applications, McLanahan can offer a plant specifically designed to suit your needs.

McLanahan is best known for creating process solutions to address the specific needs of each customer's application. We have one of the largest ranges of robust, field-proven equipment, and we are constantly innovating. Our background and expertise in applications is second to none.

Depending on the application, McLanahan can perform lab scale tests on materials, including sieve analysis, percent solids, attrition scrubbing, sink/float, sand equivalency and durability, Hydrosizer based classification, static and dynamic flocculation/settling and Filter Press testing.

With our proprietary simulations, in-house lab and industry expertise, you get a plant designed specifically for your site with capacities to match your need. Our expertise is the envy of the industry, so when you couple this with one of the largest ranges of equipment offerings, we can offer a solution.

Sand Washing comes in many forms and covers a range of feed and products produced, including construction aggregates such as concrete, asphalt, mason, mortar, and plaster sands; sports sands such as for golf courses, ball parks, and race courses; industrial sands, such as glass, filter, foundry, and frac; specialty sands and materials such as anti-skid, roofing granules; deligniting/organics removal; and soils washing for environmental projects.

First, consider the following questions: What do you have? What do you want to make? If the answer is a very specialized gradation and a difficult natural sand deposit, then consider a Recipe Plant. If the answer is a manufactured sand and you are making concrete sand all day every day, then an Ultra Sand Plant or Modular Wash Plant may be your answer.

Many other factors, such as available investment, local competition and expanding markets, will influence this decision. Through a process of elimination starting with the simplest configuration, McLanahans experienced personnel will guide you through to the best options.

Ultra Sand Plants, which utilize Dewatering Screens, Pumps and Cyclones, offer greater separation efficiency and provide a higher product yield that can be reused almost immediately due to the effectiveness of the Dewatering Screen. Ultra Sand Plants are commonly used to wash and dewater industrial and specialty sands, as well as asphalt, concrete and masonry sands.

For high-quality sand that meets strict specifications, look no further than McLanahan Recipe Sand Plants. These sand plants make use of every grain of sand to offer customized blending for concrete, foundry, glass and plaster sands. The resulting sand product is consistent, uniform and will meet even the tightest of specifications.

McLanahan In-Line Blending Sand Plants provide high product yields, offer flexible blending options, produce drier products and improve product consistency. They are simple to operate, create accurate splits and are field-proven.

McLanahan designs each of its Frac Sand Plants to meet the specific needs of each customer. Using field-proven McLanahan equipment, Frac Sand Plants can be designed for classifying, desliming, dewatering, pumping, scrubbing, sizing, tailings management and waste solids management. McLanahan Frac Sand Plants are engineered to make the critical separations required for frac sand. They produce the highest product yield at the lowest moisture.

Classifying Tank Based Sand Plants can create multiple products from a single feed as well as remove slimes and excess water. Feed material enters the Sand Classifying Tank first, and sand grains settle in sections according to size down the length of the tank. Valves at the bottom of each section release the grains into one of several flumes used to create a primary, secondary or tertiary product, depending on the application. The discharged products are then dewatered by Dewatering Screens and/or Fine Material Screw Washers. The addition of Cyclones and/or rising current water can be used to deslime the feed.

McLanahan Industrial Sand Plants are designed with a combination of McLanahan equipment to provide extremely sharp classification of various industrial sands. This equipment can include Attrition Cells, Dewatering Screens, Hydrocyclones, Hydrosizers, Filter Presses, Fine Material Screw Washers, Pumps, Separators and Thickeners.

Although Portable Plants, which can be wheel-mounted or skid-based to provide an ease of transport, are limited in capacity, they do not limit the process. Portable Sand Plants can be used for classifying, dewatering, sizing and removing oversize and organics from feeds to produce aggregates, construction and demolition materials, and specialty sands.

McLanahan Ultra Fines Recovery Plants can recover +400 mesh material for use in many industries. UFRs are especially well-suited in the aggregates industry for effluent streams containing <100 mesh fractions and for recovering valuable coal from effluent streams in the coal industry.

rapid sand washer - simpson technologies

rapid sand washer - simpson technologies

The Rapid Sand Washer is used to prepare a sand sample for the AFS Clay Tester, Model No. 42131. This washer agitates the sand at a high speed which scrubs the adhering clay from the sand grains. T... View Full Description

The Rapid Sand Washer is used to prepare a sand sample for the AFS Clay Tester, Model No. 42131. This washer agitates the sand at a high speed which scrubs the adhering clay from the sand grains. The unit consists of a high speed agitator, timer, and stand and also includes a 1000ml beaker.

The Rapid Sand Washer is used to prepare a sand sample for the AFS Clay Tester, Model No. 42131. This washer agitates the sand at a high speed which scrubs the adhering clay from the sand grains. The unit consists of a high speed agitator, timer, and stand and also includes a 1000ml beaker.

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aggregate washing equipment | wash equipment | superior industries

aggregate washing equipment | wash equipment | superior industries

All that time it took to design and build postponed your ability to generate income. What if we told you we've got a library of pre-engineered plants ready to build, rapidly install and produce profit?

Superior replacement crusher parts are taken from the same warehouse used for our manufacturing operations. That means you get an equal part, with equal quality, thats designed exactly for your machine.

Aggregate materials that are processed through a washing cycle are stripped of any unwanted silts or clays to meet specification. This deleterious or unwanted material in your virgin aggregate may also include natural earthly debris like shale, coal, roots, twigs and/or soft stones.

fine material washers | eagle iron works

fine material washers | eagle iron works

Washing fine 2.6 SG and higher solids being nominally minus 10mm or 3/8" x 0 is the primary function of Fine Material Washers. This is accomplished by the continuous rotation of the spiral conveyor shaft and the velocity of the overflowing wastewater acting on the feed material. The rotating shaft causes the feed material to roll and tumble, which in turn provides particle-on-particle attrition. This action allows deleterious coatings to be removed from the solids and discharged with the overflowing wastewater.

Fine Material Washers are available in either single or double screw configurations, and selection is primarily a function of capacity requirements. Wear shoes can be provided in a 600 Brinell Eagle Armor iron alloy or in a premium polyurethane. Classic Eagle Fine Material Washers come equipped with a heavy-duty Eagle Gear Reducer. These gear reducers have heat-treated helical gears, triple reduction that allows 100% to 16% operational washer shaft speeds, oil bath lubrication for maintenance-free operation and drive guards as standard. Double Fine Material Screws can be manufactured in a size of 72 x 38 with capacities up to 950 TPH.

Fine Material Washers achieve dewatering by conveying the product up an inclined tub to allow free water to drain from the material. Using a close-clearance curved plate on one side of the conveyor shaft and a drainage trough on the other side, water is allowed to drain from the product as the spiraled shaft delivers the material up the inclined curved plate. This process means less water and results in a drier final product that is more salable.

Classification is achieved by adjusting the volume of water over the adjustable-height weirs of the Fine Material Washer. For maximum material retention, the washers three adjustable weirs are set level to provide a low overflow velocity. For coarser mesh hydraulic splits, the Fine Material Washers adjustable-height weirs are offset to provide a higher overflow velocity.

CONDOR Screw Washers offer many of the same benefits as Eagle Iron Works Classic Screw Washers. They feature the same outboard bearings, shaft dimensions, full-length curved plate, rising current plate and adjustable weirs as Classic Eagle Fine Material Screws. Washer tubs are constructed with the same material, steel thickness and matching capabilities. The main difference is that CONDOR units are built with an industry recognized Dodge TA II reducer, sized for a long life of continuous operation.

EIW, LLC has been providing aggregate beneficiation equipment of exceptional quality for over 145 years. EIW begins by engineering equipment for the defined needs of each customer. We provide support from point of sale throughout the life of the machine, including readily available replacement parts.

fine material screw washers | mclanahan

fine material screw washers | mclanahan

Fine Material Screw Washers wash, classify and dewater -10mm or 3/8 solids material in one machine. They often accept feed slurry from Wash Screens, Sand Classifying Tanks, Hydrocyclones, Hydrosizers and other Fine Material Screw Washers. If an application calls for a greater level of dewatering, they are often placed in series with a Dewatering Screen.

Fine Material Screw Washers are especially simple for operations looking to wash dry screened fines. When compared to other sand washing systems, Screw Washers are a low-capital cost and low electric power user machine. They are widely used by construction sand producers, mining companies, solar salt/brine processors and glass recycling plants.

McLanahan offers an extensive range of sizes of Fine Material Screw Washers. Sizing and selection is based on several factors, including the type of feed solids, feed gradation, desired product specification, capacity required and volume of the feed slurry. It is extremely important that all of these factors are taken into consideration when selecting the proper size of screw washer. Poor design and planning can lead to overflow of desired fine material, resulting in lost product and profit. McLanahan Corporations utilizes its vast experience in washing and classifying equipment to ensure proper machine size by reviewing application data that includes slurry volume and your feed gradation data of water coming in with the feed.

Sometimes when processing a very dilute sand slurry, such as at a stone rinsing vibrating screen station, and needing to retain +200 mesh or 75 micron solids, a sand screw size selection may need to be larger than what appears to be required when the solids feed rate isnt that much. If you look at a manufacturers tons per hour data, a machines water volume capacity may not meet your needs for fine sand solids retention based on the water volume capacity chart.

McLanahan Corporation offers a wider range of Fine Material Sand Screws than other manufacturers. High Water Volume Screw Washers are available sizes that allow the mixing and matching of a screw shaft size to handle a reduced capacity of sand solids with a washer box tub to handle a larger than normal water volume. This provides a lower cost option as compared to a larger standard sand screw. If the sand capacity is 50 tph with 1,000 gallons per minute of water, a 36 diameter screw shaft can be provided in a 54 washer box tub.

High Water Volume Screw Washers have been in operation since 2002, providing operators a proper alternative with increased product sized sand fines retention, as opposed to a standard machine selected incorrectly for just the tons per hour sand solids capacity.

To achieve the desired results with a Fine Material Screw Washer, sand or other fine material is directed to the feed box in the baffle plate. Coarse, heavier materials settle to the bottom of the box, while ultra-fine waste fractions are carried by the up-current of water to the surface and overflow the weirs.

Heavier material that settles to the bottom is conveyed up an 18-degree slope toward the discharge end. The rolling and tumbling of the material releases fines and some lightweight fractions into suspension. It also mildly scrubs superficial clays from the sand/mineral surfaces. As the material is conveyed toward the discharge end, the water begins to separate from the material. A channel in the washer box/tub is provided opposite the conveying side to allow water to drain from the solids and overflow the weirs.

In order to properly retain material in a screw washer, a calm pool area must be maintained. The feed box within the baffle plate is used to direct material away from the calm pool area; however, if the pool area is turbulent, finer material that may be desirable in the final product will overflow the weirs. The baffle plate helps to separate the washer box feed area and keep the pool area calm. In some applications, producers may remove the baffle plate and feed the material close to the back plate of the weir to help agitate the pool area and overflow undesirable material.

The speed of the Fine Material Screw Washer is determined by the percent passing 50 mesh in the desired product. If the screw washer is running too fast, material does not have a chance to stay on the flight long enough to dewater. The material will fall off of the flight and return to the pool area, leading the box to eventually fill with sand and stall the screw shaft.

Fine Material Screw Washers are widely used to wash and dewater: alluvial/natural sands, manufactured/crushed sands, frac sands, industrial/silica sands, iron ore fines, fine phosphate solids, solar evaporated salt solids and crushed glass.

Hydrocyclones, Dewatering Screen systems using a Hydrocyclone, and bucket wheels. Youll find that for the cost and low kW (hp) requirements, a Fine Material Screw Washer will be an extremely viable option and a good choice for you.

Functioning to wash, dewater and classify all solids material all in one machine, McLanahan Fine Material Screw Washers are ideal for construction sand producers, mining companies, salt/brine reclamation and glass recycling. Fine Material Screw Washers create a drier product discharge, while preventing water and even the smallest particles from reaching the bearing thanks to the McLanahan Twin-Seal Pak submerged rear bearings.

gator twin 36 x 25 fine material washer. arizona construction equipment

gator twin 36 x 25 fine material washer. arizona construction equipment

Specifications: - Number of screws:2 - Screw diameter (Inches):36" - Tub length (Feet):25' - Max. feed size (Inches):3/8" - Capacity (TPH):100-200 - Screw speed (RPM):21 - Recommend motors (HP): 2 x15 HP, 1800 RPM, TEFC - Water requirement (GPM):350-1250 - Weight (LBS):25,500 - Drive Sheave (Inches):6" - Driven Sheave (Inches):7-3/8"

Features: - Heavy-duty tub. - All welded trough minimizes leaks and extends life. - Minimal screw/tub clearance. - Ribbon type, continuous one-piece auger. - Overlapping shoes and AR paddles for added auger protection. - Overflow pipe. - Greaseable lower bearing assembly. - Extra heavy-duty gearbox. - 68:1 reduction ratio. - Heat treated, helical cut precision gears. - Oil bath gear box lubrication. - Standard mounting leg. - Drive belt guards.

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