Sand and gravel aggregates, as the most fundamental raw material for construction projects, are of great importance in the operation of their production lines. According to the long-term development plan for national infrastructure, the demand for sand and gravel is expected to increase annually...Growth exceeds 10% annually, with river pebbles accounting for about 60% of the sand production. The extraction of sand and gravel is increasingly moving towards large-scale operations, higher yields, and environmental protection. Moreover, with the government's recent restrictions on the extraction of natural sand and gravel, the mining of manufactured sand is becoming increasingly significant.
Xinxiang Great Wall's New Type Sand and Gravel Line Process
The ore raw materials extracted are initially broken and screened after coarse crushing and fed into a jaw crusher.
Then, the material is sequentially fed into the medium and fine cone crushers for crushing.
Simultaneously, the screening system is separated out.Material sizes ranging from 5 to 30mm are stored in the buffer bin of the sand-making machine and then fed into four vertical shaft crushers for crushing.
Subsequently, the products are conveyed to the finished product screening workshop via belt conveyors for sorting.
Separated outMaterial of 20mm, returned to the sand-making machine for crushing via a belt conveyor.
Separated out10-20mm material, stored as finished products in the finished goods shed.
IsolatedMaterial from 0~5mm passes through a chute into the water washing system for cleaning.
System Introduction
Crushing System
Xinxiang Great Wall can supply to the market300 tons/hourThe above sand and gravel aggregate production line features a crushing system divided into three parts: primary crushing, medium-fine crushing, and sand-making crushing.
Initial Breakthrough:140mm < Initial Break Material Fineness ≤ 800mm
Medium-fine crushed:30mm < Medium-fine Crushing Fineness
Sand Making Crushing:0~5mm
Screening system
Each fraction, after being crushed, will enter the corresponding material fineness screening system for fineness screening. The material that meets the requirements for a particular fraction will be processed in that specific crushing system.
Water Washing System
Separated by the screening systemMaterial ranging from 0 to 5mm first enters its respective sand washing system for further cleaning. The separated sand is then processed through a dewatering screen, and ultimately stored in the finished sand storage shed.
Wastewater Utilization System
After the muddy wastewater is dehydrated through a cyclone and a dewatering screen, the sludge flows into a lift tank and is then pumped to a horizontal sedimentation tank. The underflow is transported to a sludge tank by a plunger pump, while the clear water flows into a water tank for production use. The sludge in the sludge tank is fed into a press filter by a feed pump and the filtered cake is conveyed to the factory's storage area by a belt conveyor. The effluent is then discharged into the water tank for recirculation.
Storage System
Utilize fully enclosed finished material sheds to prevent dust from escaping, catering to the storage needs of natural sandstone, processed sand, and finished aggregates.
IC Card Loading System
The intelligent control vehicle streamlines the entire process from factory weighing to vehicle loading and dispatch, integrating simplified procedures and the integration of information and automation systems, reducing manual operations, and comprehensively enhancing shipping efficiency and customer satisfaction.
Xinxiang Great WallOver 60 years of experience in powder grinding system comprehensive service, with professional design, manufacturing, installation, and debugging teams. We offer material performance analysis and all equipment and spare parts are produced by Xinxiang Great Wall. We provide one-stop integrated package services. Welcome to visit our factory and inquire!
