Ninon Sand Aggregate Line Layout ▏Maximize Efficiency and Profit

The layout of the aggregate shaping and sand making plant takes full advantage of the on-site floor level difference. The floor elevation for primary crushing and soil removal screening of aggregates in the sand making plant is higher than that for secondary crushing. The floor elevations of all other units in the sand production line, including secondary crushing, primary screening, secondary screening and conveying, finished aggregates and conveying, are consistent.

Considering the maintenance passages of each unit in the sand making plant, the belt conveyor between units are arranged at the maximum possible angle. This not only saves investment and operation costs for the sand production line but also reduces the occupied space of the sand making plant.

Crushers and screeners in the aggregate shaping and sand making plant are all arranged on a first-floor concrete frame with separate foundations. This reduces vibration, facilitates equipment maintenance and servicing in the sand making plant, and also lowers investment for the sand production line.

Due to limited site space of the sand making plant, the finished materials from the primary and secondary screening units are transported to the finished product silo by elevators.

No buffer stockpile is set between primary and secondary crushing in the aggregate shaping and sand making plant; instead, a buffer silo is installed. The disadvantage is that if the primary crushing fails or there is a problem with the supply of raw ore from the mine, the equipment after secondary crushing in the sand making plant cannot operate continuously. The advantage is that it saves millions of investment and site space for the sand production line.

There are four main storage methods for finished aggregates in the sand production line: concrete silo storage, steel silo storage, shed storage, and open-air storage.

Open-air storage is rarely used in the aggregate shaping and sand making plant due to severe dust pollution.

Compared with concrete silo storage in the sand making plant, steel silo storage has the advantages of lower investment and shorter construction period, but it also has the disadvantages of shorter silo wall wear time and shorter service life.

Compared with shed storage in the aggregate shaping and sand making plant, steel silo storage has the advantages of good dust collection effect, small occupied area, and the ability to realize automated bulk shipment.

The storage method is selected for the sand making plant considering factors such as project duration, investment cost, environmental protection, and automation level. Finally, bulk loaders are installed under the silo for shipment.