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Sand washers are essential equipment in wet sand making lines, designed to remove silt, clay, and other impurities from raw sand. Understanding their working principle helps users operate the equipment correctly and optimize the washing effect.
1. Core Purpose of Sand Washing
The main goal of sand washing is to improve sand quality by:
Removing fine silt and clay particles that reduce concrete strength.
Reducing the content of organic matter and light impurities.
Improving the cleanliness and grading of finished sand, meeting construction standards
2. Working Principle of Wheel Sand Washers
Wheel sand washers use a rotating wheel bucket to lift and wash sand:
Raw sand enters the washing tank with water.
The rotating wheel bucket lifts sand from the tank, allowing dirty water and fine silt to flow back.
Sand is dewatered as it moves up the wheel and discharged at the top.
Impurities and sludge settle at the bottom and are discharged periodically
3. Working Principle of Screw Sand Washers
Screw sand washers use spiral blades to agitate and convey sand:
Raw sand enters the washing tank and is stirred by spiral blades to loosen clay and silt.
Sand is gradually lifted to the discharge end by the rotating screw, while dirty water flows out from the overflow weir.
Sand is dewatered during the upward movement and discharged at the top.
The screw continuously agitates sand to ensure thorough cleaning
Both wheel and screw sand washers achieve cleaning through washing, conveying, and dewatering, but their mechanical structures differ. Understanding their working principles helps you choose the right type and adjust operating parameters for optimal washing efficiency.
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50R&D engineers
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The user purchased two sets of sand production line, each set of equipment includes ZSW490*110 vibrating feeder, PE750*1060 jaw crusher, HST250 single-cylinder cone crusher, JYS1238 sand making machine, YK2460 vibrating screen, 3016 sand washer and so on.
The designed capacity of this sand making project is 200t/h, and the equipment used includes 490*110 vibrating feeder, PE750*1060 jaw crusher, PF1315 impact crusher, 9928 sand making machine, two sets of 2460 vibrating screen, two sets of 920 single screw sand washer, two sets of XSD2816 sand washer, two sets of dewatering screen, and several belt conveyors.
Project configuration: Jaw Crusher PE900*1200, Cone Crusher HST315T, Vertical Shaft Impact Crusher VSI6X1263, Heavy Duty Vibrating Screen 2YKZ3080/3YKZ3080, Vibrating Feeder ZG1220Z/ZSW1360, Twin Screw Sand Washer 2XL1120, Bar Vibrating Feeder ZSW1360B, Bucket Wheel Sand Washing Machine DS4024, dewatering screen TS2450 many types of equipment. They will work together with the whole production line to crush and process the sand trap cobbles and mountain ores into natural sand, mechanism sand, and uniform material.
The finished products of the project are used for high-speed railway construction and neighbouring construction materials, which will strongly promote the local economic development. In the future, Jianye Heavy Industry Company will continue to give full play to its years of practical experience in the sand and gravel aggregate, construction waste resource reuse, industrial powder making, silica sand and other industries, as well as EPC one-stop turnkey services, to cooperate with customers and jointly promote the high-quality, healthy and sustainable development of the sand and gravel industry.
Jiangsu Rugao Calcium Powder Factory purchased two sets of Jianye 4121 high-pressure mills for the production of heavy calcium powder, which is mainly used in the filler industry and coating industry, and now it also maintains a close cooperation relationship with Jianye, and every year Jianye sends technicians or sales managers to visit the user.
The user uses calcined petroleum coke to grind and make powder, and the finished coke powder is mainly used for processing graphite electrodes. In recent years, the price of coke powder rises, the user spends tens of millions of dollars to build a production line with an annual output of 60,000-100,000 tonnes of high-quality coke powder, which is the first phase of the project, using two sets of 6R4528 high-pressure grinding mills of Jianye Company.
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