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Help CenterDouble Roller Crusher for Sand Making Closed‑loop Circulation System
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Product Overview
This Double Roller Crusher is specially developed for sand‑making closed‑loop circulation systems. Matching with vibrating screens and conveying equipment, it forms a full closed‑circuit sand production process. Unqualified oversize particles are returned to the crusher for re‑crushing instead of being discharged as waste. It guarantees high‑quality finished sand with stable particle size and reasonable gradation. Featuring low‑powder extrusion crushing performance, it solves common problems of open‑loop sand making such as unstable fineness modulus and low finished‑sand yield. It is core fine‑crushing equipment for standardized artificial sand‑making production lines.
Key Features
Perfect for closed‑loop circulation sand‑making workflow: Optimized feeding and discharging structure suits cyclic returning‑material operation. After screening, coarse particles are sent back to the crushing cavity for repeated extrusion crushing until meeting finished‑sand requirements. Closed‑loop circulation greatly raises sand yield and reduces material waste. Low‑speed extrusion crushing keeps good grain shape and controls excessive fine powder, improving the overall quality of manufactured sand.
Adjustable roller gap flexibly changes sand fineness modulus and particle gradation to satisfy different market sand specifications. The whole system runs stably with low vibration, low energy consumption and low failure rate. It can keep long‑time continuous cyclic production. Smooth connection with screen and conveyor simplifies site layout. Maintenance is convenient, effectively cutting comprehensive operation cost of the sand‑making plant.
Working Principle
Raw materials enter the double roller crusher and get crushed by continuous extrusion and shearing force of two opposite‑rotating rollers. Crushed mixed materials are transported to vibrating screen for classification. Qualified sand is discharged as final product. Oversized coarse particles are conveyed back into the double roller crusher for secondary and multiple crushing. Materials keep circulating inside the closed‑loop system until reaching qualified particle size, realizing high‑efficiency closed‑circuit artificial sand production.
Applicable Materials
Suitable for limestone, quartz stone, river pebble, basalt, granite tailings, coal gangue, construction waste and other medium‑hard brittle materials. Ideal raw materials for closed‑loop manufactured‑sand projects.
Application Scope
Widely used in artificial sand‑making plants, aggregate processing lines, tailings recycling projects, building‑material production bases and solid‑waste recycling stations. Applied as key fine crushing equipment for closed‑loop circulation sand‑making systems.
Product Advantages
This double roller‑crusher‑based closed‑loop sand‑making system maximizes raw‑material utilization and reduces resource loss. It delivers stable fineness modulus, reasonable gradation and low dust content for finished manufactured sand. It brings high sand output and stable running performance. It is a mature and reliable fine‑crushing solution for modern high‑yield closed‑loop artificial sand‑making lines.
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