简介：

天井钻进法是一种钻凿大直径孔眼到地表或贯通夹层的极具安全性和经济性的钻进方式，典型使用于非爆破方式采矿业或夹层间循环孔挖掘，或建造通风井、矿井过道、人行巷道和水渠等。天井钻进用途相当多，作为一种回转钻进方式，已被全世界范围内矿场、水电站和市政基建工程所接纳。

最常用的天井钻进法是领眼上扩法，将天井钻机安置于需要惯通的层面之间的上层，用密封轴承领眼牙轮钻头钻凿领眼孔。当领眼钻具惯通到达目标层的空旷处后，将领眼牙轮钻头卸去换上所需孔径的滚刀刀盘，将其连上钻柱后沿着钻机方向向上钻进。刀盘钻进中产生的渣屑掉进准备在下层地面卡车里。

傲石捷的滚刀是为多种尺寸的（涵盖从0.6米到12米直径）刀盘设计制造，既可用于水平钻进，也可以用于垂直钻进，既可用于领眼扩孔钻进，也能用于盲打钻进。最优化的切削结构设计使滚刀可以适用任何地层，仅需根据不同地层对滚刀的布齿间距进行修改。G和N组合的滚刀混合使用时，可以根据刀盘进行任意的间距组合，达到更好的进尺效率和刀盘韧性。这些滚刀均采用最新技术设计，具有最佳性能。

此外，傲石捷能够通过对客户提供的岩层信息和天井钻机技术参数进行分析，然后重新设计出最适合他们的滚刀、以获取最佳切削结构和齿排间距以确保达到最佳的进尺和使用寿命组合，将单位钻进成本降至最低。

规格和操作参数概览：

注：如需特殊规格可联系我们定做。

如需样本和更多的产品信息，请点击此处， 核实您的公司信息，并告知我们您的具体需求。 

如何订购：

滚刀尺寸 + 刀座连接方式

如可能也请收集如下信息：

1, 钻机和空压机信息； 

2, 岩层条件；

3, 之前使用的滚刀的性能统计。

General Introduction:

Raise Bore Drilling is extremely safe and economical drilling method to open large diameter holes to the surface or one underground level to another, typically used in mining operations, to excavate a circular hole between two levels of a mine without the use of explosives, or constructing ventilation shafts, ore passes, manways and penstocks. Raise bore drilling is quite versatile and has gained worldwide acceptance as the preferred rotary drilling method at mines, power generation plants and civil infrastructure projects.

The mostly used raise bore method is pre-drilled pilot-hole reaming, in which a raise bore machine is set up on the upper level of the two levels to be connected. A pilot hole is drilled by a sealed bearing pilot tricone bits to the lower level. Once the drill string has broken into the opening on the target level, the pilot bit would be removed and a reamer head with roller cutters, of required diameter of the excavation, is connected to the drill string and raised back up towards the raise bore drilling machine. The debris and cuttings from the reamer head during drilling fall on to a truck prepared on the floor of the lower level. 

Acdrills’ Raisebore Roller Cutters are designed and manufactured for a wide range of reaming heads, varying in sizes from 0.6 to 12 meters in diameter, to be used in, from horizontal TBM boring to vertical drilling, either pre-drilled pilot hole raise bore reaming or blind shaft sinking boring types. Designed for optimum performance in all types of rock formations with varying spacing between the rows of tungsten-carbide inserts, the roller cutters are engineered for many type of Raisebore Head configuration. The G and N Roller Cutters, can be used in variable space combination on any one reaming head, which delivers better rates of penetration as well as increased toughness. These cutters are designed and manufactured using the latest technology and will deliver optimum performance.

Besides, by analyzing the given geological rock formation information of the ground and the type of raise bore machines parameters to be used, Acedrills can re-design the most appropriate raise bore rollers with optimum cutter configuration and most suitable cutting spacing to ensure that the highest penetration rate combined with longest service life, so as to minimize the cost per cubic meter for driller.

Specifications and Operating Parameters Overview:

Note: Special sizes may be available upon request.

For brochure and more product information, please click here to verify your company information and tell us the detail.

How to order?

Cutter Dimension + Mount Design

As well as collect the following information if possible:

1, Raise Boring Machine Information;

2, rock formation condition;

3, roller cutters performance statistics.