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300tph Limestone crush plant

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Lime has excellent properties such as thermal conductivity, robustness, water absorption, gas impermeability, sound insulation, polishing, good cementation and processability, and can be directly used for raw ore processing. Limestone is an important indu

Solution I

Jaw crusher + Impact crusher

The main component of limestone is calcium carbonate (CaCO3), which can be directly processed into stone and fired into quicklime. Lime has quicklime and slaked lime. The main component of quicklime is CaO, which is generally in the form of a block, pure white, and pale gray or yellowish when it contains impurities. Quicklime absorbs moisture or adds water to become hydrated lime. Slaked lime is also called slaked lime. Its main component is Ca(OH)2. The slaked lime is formulated into a lime slurry, a lime paste, a lime mortar, etc., and is used as a coating material and a tile adhesive. Limestone and lime are used in large quantities as building materials and are important raw materials for many industries.
This production line is one of classic design for crushing. With the unique vortex type three crushing cavities of the impact crusher, it produces the final product of high quality aggregate with character of uniformity in size and cubical in shape.

The stone production line is relatively simple production line configuration. The main equipment of the production line includes vibrating feeder, heavy hammer crusher, hammer crusher, vibrating screen and vibrating screen. The specific process flow is as follows:
1. Raw material storage, transportation and screening
Firstly, the limestone (20-40mm) that meets the particle size requirement is sent from the mining area to the processing production area, and then the material is fed into the discharge silo by the feeder through the belt conveyor. After screening, the particle size is 10mm or more and 10mm. The following materials are sent to the crushing silo and the silo silo. After the qualified limestone raw material is put into the preheater to complete the preheating and pre-decomposition, the next step can be carried out.
2. Limestone calcination
While the material is in the preheater, the high temperature flue gas introduced from the rotary kiln preheats the material to 600-800 degrees Celsius, which partially decomposes the limestone, which is more conducive to the calcination process. Rotary kiln has become the mainstream equipment for lime calcination process. Limestone is fed into the kiln cylinder from the kiln tail cylinder. The raw material is decomposed, burned and other processes in the kiln, and then discharged from the bottom end.
3, finished product cooling and conveying
After the limestone is calcined by the rotary kiln, the next step is to cool, and the cold air blown by the fan is used to cool the material to 65 degrees Celsius to discharge the cooler. After the finished lime is discharged, it is transported by the bucket elevator to the top of the silo, and then sieved to divide the material into different granularity storage bins.




Solution II

New type single-rotor hammer crushers

This production line is single-stage crushing design, which adopts a new type of hammer crusher to instead of 2 machines (jaw crusher + impact crusher). The whole production line is of compact and reasonable structure. The cost is much lower than the two-stage crushing design while with a large capacity, up to 3000tph. This production line is suitable for the medium hardness materials, such as limestone, and has the advantages of large capacity, low power consumption and high quality of finished products.

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