Product description

The core process of limestone crushing and sand making production line usually includes coarse crushing, medium crushing, fine crushing/sand making, screening, etc. It is necessary to flexibly adjust the specific equipment selection based on the characteristics of raw materials, production requirements, and environmental protection requirements.

The limestone crushing and sand making production line following is the common configuration:

Limestone Crushing and Sand Making Key Equipment Selection Suggestions

Coarse Crushing Equipment

Jaw Crusher

Jaw Crusher: ?PE series is preferred to deal with large limestone (feed ≤ 1500mm), with crushing ratio of 3-5, stable structure and low maintenance cost.

Hammer Crusher: If the raw material size is small (≤800mm), hammer crusher can be used to replace jaw crusher + impact crusher to simplify the process.

Medium crushing equipment

Impact crusher

Impact crusher: the finished product has better particle shape, but the replacement frequency of wearing parts is higher, suitable for medium and low hardness limestone.

Sand making equipment

Roller sand making machine

Roller sand making machine: low energy consumption, less dust, the gap between two rollers can be precisely adjusted by hydraulic or mechanical device, achieving full size coverage from coarse crushing to fine grinding, meeting the stringent requirements of different industries on the size of finished products.

Process Optimisation Points

Closed Circuit Design: Through the vibrating screen, the particles that do not meet the standard will be returned to the sand making machine for secondary crushing, which reduces the waste and improves the finished product rate.

Dust control: High-pressure spraying is installed at the inlet of the jawbreaker, the conveyor belt is sealed, and the sand making process is equipped with a dust collector. Energy consumption management: impact sand making machine has high power consumption, it can be equipped with frequency converter to adjust the speed, balancing the output and energy consumption.

Environmental Protection and Intelligent Trend

Tower Sand Making System: Fully enclosed dry sand production system, no dust overflow, and the powder content of the finished product can be controlled within 3% -7%, suitable for high-end sand and gravel needs.

PLC automation control: realise equipment linkage and fault warning, reduce manual intervention and improve the stability of the production line.

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