Limestone Crushing

How to crush limestone?
How much invest for the limestone crushing plant?
How to start a stone aggregate making business? machine selection and processing plant layout design.
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This article to answer these questions as much as possible, from limestone property, crushing circuit layout and rock crusher machine selection, complete production line investment estimation. Join us.

Limestone is a sedimentary rock, which is a crystalline structure with a layered structure, mainly containing calcite.

Streak
grey
Mohs Hardness
<3
Main ingredients
CaCO 3

Limestone application

The compact limestone has a compressive strength of 20~120MPa and a density of 2000~2600 kg/m3. When the clay impurities in the limestone exceed 3% to 4%, the frost resistance and water resistance are remarkably lowered.
Siliceous limestone has high strength, high hardness and good durability.
Most limestones are fine, hard and resistant to weathering, and are mainly used as building materials.

The large piece of limestone is uniform to the jaw crusher for primary crushing by the vibrating feeder;
The primary crushed material and the fine material sieved by the vibrating feeder are conveyed to the impact crusher;
The circular vibrating screen sieves the limestone after the impact crusher, and the large-grained limestone is returned to the impact crusher to re-crush, the qualified grade materials are graded and transported by the conveyor to different stockpiles.

JXSC supply complete aggregate making machine for various sand & gravel, pebble, limestone, basalt, granite, dolomite, etc.
Includes jaw crusher, impact crusher, cone crusher, sand making machine, vibrating screen, vibrating feeder, sand washing machine, convey belt, etc.

Limestone coarse crusher: jaw crusher

The limestone jaw crusher is usually used as the first rock crusher, and it is suited for medium-size crushing of ore and bulk materials with a compressive strength of not more than 320Mpa.
Jaw crusher is divided into coarse crushing and fine crushing. The feeding size is 125mm~750mm. It often forms a complete sandstone production line together with cone crusher, impact crusher and sand making machine.

Buy jaw crusher

Limestone medium crushing equipment recommended: impact crusher & cone crusher.
The impact crusher can granite, limestone, concrete, and the like coarse materials with a side length of less than 500 mm and a compressive strength of less than 350 MPa.
【Impact crusher VS cone crusher】
Impact crusher has a lower price, uniform discharge, less needle-like crushed product.
The cone crusher is slightly more expensive, but the wearing parts have a long life. In the long run, the cone crusher is more durable.
【Impact crusher VS hammer crusher】
The impact crusher has a larger crushing ratio and can more fully utilize the high-speed impact energy of the entire rotor.
The impact crusher is easy to wear, which makes it limited in the application of hard material crushing.

Buy cone crusher

Limestone fine crushing machine: VIS sand making machine, HX sand making machine, has a high stone crushing rate, high sanding rate, good finished grain shape.
If you need clean sand finish products, use the sand washing machine for cleaning and dewatering.

1. Screen machine
Function: The screening machine sieves the crushed stone product into several sizes for use in different fields.
Circular vibratory screening machines are the most commonly used.

2. Ore feeder
Function: uniform and evenly feed ore material to crushers.
Automatic feeding machine, easy operation, and save labor costs.

3. Conveyor belt
Responsible for the transportation of materials. The specific configuration of conveyor belts in a limestone crushing line needs to be combined with working conditions and processing requirements.

1. Stationary crushing plant
Three-stage crushing process, high capacity
Equipment: Vibrating Feeder + Jaw Crusher + Impact Crusher + Sand Making Machine + Round Vibrating Screen + Belt Conveyor
2. Mobile crushing plant
Main Equipment: mobile jaw crusher + mobile impact crusher
Flexible, small space, lower invest, easy to construct; intelligent design, secure and convenient one-button operation.
3. Semi-mobile crushing plant
Capacity: 50-600t/h (the maximal capacity of the mobile and semi-mobile plant are less than that of stationary)
Equipment: mobile jaw crusher + mobile impact crusher + sand making machine
Movable, less limitation;
PLC control system, real-time monitoring of equipment voltage, airflow, temperature, etc., touch screen display production data, operational error voice prompts, more secure.
Dust removal.

【Feed size】≤800mm

【Finished product specifications】fine gravel aggregate (5-10,10-20,16-31.5mm), fine machine sand (0-5mm)

【Process】Dry type sand making

【Limestone product application】concrete mixing stations, high-speed rail construction projects.

【Related equipment】raw material bin, ZSW600x180 vibrating feeder, PE1500x1800 jaw machine, PF1820 impact crusher (2 sets), 2YK3072 vibrating screen (4 sets), conveyors.

【Investment estimation】USD $800,000 – $1,000,000

【Feed size】≤210mm

【Finished product specifications】0-5mm

【Related equipment】2 PEX250*1200 jaw crusher, B800*20m conveyor, HXVSI9526 impact sand making machine, B800*26m conveyor, 2YK2460 vibrating screen, XS2900 sand washing machine, B650*15m conveyor.

【Investment estimation】USD $100,000

【Feed size】≤500mm

【Finished product specifications】0-5,5-10，10-20,20-30mm

【Related equipment】mobile jaw crusher, mobile impact crusher, external belt conveyor, car belt conveyor, iron remover, etc.

【Investment estimation】USD $180,000

【Feed size】≤500mm

【Finished product specifications】0-10,10-20,20-30mm

【Related equipment】cone crusher, B1000X23m conveyor, HVI1250 sand making machine, 2YK2460 vibrating screen, and washing machine (2 sets)

【Environmental protection measures】Closed production, effectively reducing dust pollution, in addition, the spray dust collector is equipped to effectively suppress dust.

【Investment estimation】USD $150,000

Above are some common limestone crushing production lines. If you are interested in, welcome to contact us online and will provide you with a satisfactory solution.

JXSC is a well-known crusher manufacturer in China. With more than 20 high-tech patents, JXSC is a veritable high-tech enterprise.
We produce a full set of limestone crushers, including jaw crusher, impact crusher, cone crusher, VSI impact crusher, vibrating screen, etc. In addition, we design the effective production line according to the actual situation to ensure safety and productivity.