When using a diamond beaded wire saw to mine granite, because the hardness of granite is much higher than that of marble, it is not possible to directly use the diamond beaded wire to completely envelop the contact area of the cutting surface as in sawing and mining marble, no matter at the beginning of sawing. , or feel that the cutting is about to end, the beaded rope is inseparable from the support of the guide wheel to ensure that the diamond beaded rope can rotate on its own axis during the sawing process to prevent the eccentric grinding of the beads. Therefore, whether the use of diamond beaded wire saw to mine granite, especially hard granite, can be successful, and whether the sawing efficiency can be improved, the most critical factor is the flexible and correct use of the guide wheel.

Horizontal cutting method

Similar to mining marble, the purpose of diamond bead saw for horizontal plane cutting on granite ore body is to separate and cut the horizontal connection surface between the separation body and the ore body. Horizontal sawing is mainly used for fully sawing and mining granite mines. At this time, the horizontal cutting is the first sawing process for the separation of the separation body, and then the vertical separation and cutting can be carried out. This sequence is irreversible, because, when cutting the horizontal plane, the link between the separation body and the vertical plane of the ore body is the guarantee to prevent the separation body from falling. If the vertical plane is now cut, and these supports are guaranteed to be released, then in the later stage of horizontal plane cutting, sometimes even in the early stage of horizontal plane cutting, the separation body may fall at any time and press the diamond beaded rope, resulting in the scrapping of diamond beads. In severe cases, it may cause the diamond beaded wire saw to break and fly out, resulting in a more serious accident. Even if the wire is cut on a horizontal plane, during the cutting process, a steel wedge should be inserted as much as possible in the already cut kerf at any time to keep the separator sufficiently supported on the horizontal plane. This auxiliary support method is more important for the separated body with cracks.

In the mixed mining of granite, in order to avoid the use of a large amount of pyrotechnic materials for the separation of the separation body, sometimes beads are also used.

A method of sawing and separating the separation body from the horizontal plane of the ore body.

Before horizontal cutting, the vertical and horizontal drill holes in an orthogonal relationship and perpendicular to each other should be drilled and intersected so that the diamond can be drilled.

The threading of the stone beaded rope. Drilling requirements and drilling horizontal and vertical intersection holes when mining marble mines with diamond bead saws

The requirements are the same.