Incredible Modern Granite Mining Machines Technology

From elegant architectural designs to timeless sculptures, the beauty and versatility of the natural stone has become a cultural symbol of tradition and refined taste.
With the continuous development of economy, the market demand for granite stone has gradually increased in recent years. The mining method of granite stone mine has also changed from traditional blasting mining to mechanized mining. This paper introduces several methods of granite stone mining.
Blasting mining
Blasting mining has always been the mainstream way of stone mining in the past, and it is still used in some mines until now. The blasting method has great damage to the natural environment, and the yield of waste materials is low. At the same time, it also has certain potential safety hazards.
Flame cutting
Flame cutting is to spray high-speed flame from the nozzle of the flame cutting machine to heat and impact the rock. Due to the different thermal response characteristics of different minerals in the rock, it will produce bursting and spalling and gradually form separation grooves. This method is suitable for rock with high quartz content, low heat capacity and poor thermal conductivity, such as granite stone mining.
Diamond wire saw mining
Using diamond wire saw cutting machine to mine granite stone is also a widely used mining method at present. The working principle of the rope saw is to drive the bead rope through the main flywheel for closed-loop high-speed rotation to cut the stone.
Combined mining of rope saw and circular saw
The combined mining method of diamond rope saw + mine circular saw is to use circular saw to cut the vertical surface of the ore body and diamond rope saw to cut the horizontal bottom surface of the stone. This method is suitable for small and medium-sized mechanized granite stone mining with complete ore body.
The above is the method of granite stone mining. For more information about stone mining, please visit the official website of Huada.
At present, the most commonly used separation method is to cut and separate all the three connecting surfaces of bulk stone and ore body with diamond wire saw cutting machine.
In the early stage, when the flame cutter was used for separation, only one connecting surface between the stone and the granite ore body could be separated, and then the long block stone was separated from the large block stone by cutting with a diamond wire saw or row hole drilling combined with single-sided or double-sided splitting vertical surface.
The combination of diamond wire saw cutting machine and arm saw cutting machine is a common method to separate marble block stone and long block stone. These two devices usually cut the three connecting surfaces between the separated block stone and the ore body, and then use the wire saw to cut the block stone and decompose it into long block stone. Or directly use the rope saw to cut and separate according to the volume of long block stone.
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Video resource: Machinery Magazine

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