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Raw material pre-handling is the essential first procedure before formal crushing and sand making processing. It focuses on purifying raw ores and optimizing material status instead of simple material transferring.
Most original mining materials contain surface soil, mixed sundries, soft weathered stones and oversized bulk blocks. Without effective pre-handling, these impurities will seriously affect finished product quality, accelerate wear parts consumption and cause frequent equipment blockage.
Standard pre-handling work mainly includes multiple core processing steps.
First is surface mud and soil stripping treatment, which clears attached dirt on rock surfaces to lower mud content of final aggregates.
Second is bulk material sorting, separating ultra-large stones that exceed feeding specification to avoid abnormal load of primary crushers.
Third is preliminary screening separation, grading fine powder and soft miscellaneous materials in advance to realize preliminary purification.
Different material sources need targeted pre-handling modes.
For hard rock raw materials such as granite and basalt, emphasis shall be placed on removing weathered layers and foreign mixed materials.
For river pebble and mixed stone materials, focus on mud removal and light impurity separation.
For construction waste recycled materials, classified sorting and harmful substance elimination are the core points.
Reasonable raw material pre-handling can stabilize later whole production rhythm, reduce failure rate of main processing equipment, effectively control finished stone and sand quality indexes, and greatly improve overall economic benefits of the production line.
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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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