Selection of open-air shallow hole blasting equipment
With the continuous advancement of social science and technology, some traditional small machines will also be replaced by new large and medium-sized equipment. At the same time, in response to the country's environmental protection requirements, coupled with the current generation of young people who are not willing to do rough and dirty work, there is also a continuous and comprehensive reduction in engineering construction. Handheld drilling rigs are rarely seen in open-air engineering blasting.
Instead of drilling holes, large-diameter medium and high wind pressure equipment is used. Entrusted by a friend, I would like to take this opportunity to briefly talk about their respective advantages and disadvantages in open-air operations for reference by engineering enthusiasts:
1. Handheld rock drill 1 The advantages of handheld rock drills in engineering applications are
1) Lightweight, simple and flexible, convenient for drilling holes in various terrains,
2) Economical and low cost, simple operation, one person can complete a certain task independently, and easy to repair and maintain;
3) It can meet the drilling requirements of different directions;
4) It has been widely used in the construction of various industries in the last century to speed up construction;
5) According to user needs, you can choose various models of drill bits with different apertures (32~50mm) to make holes.
2. Its disadvantages are:
1) The noise is loud, which will affect the hearing of both the operator and others in the long run;
2) There is a lot of dust, which does not meet the environmental protection requirements, and long-term use has a great impact on the human lungs;
3) The vibration is large, which has a certain impact on human organs;
4) When encountering cracks and irregular rocks, it is easy to get stuck;
5) When the hole depth reaches 2m or more, various fiber rods of different lengths and models are required, and the drill bits also have to be of various models. The drill bits are selected from large to small according to the short to long rods;
6) The drilling time is relatively long.
2. Large-diameter rock drilling equipment
1. The advantages are:
1) High wind pressure, fast drilling speed, and high work efficiency;
2) Equipped with a vacuum cleaner, the environmental impact is small, and the impact on human health is relatively small;
3) The aperture is large, rarely stuck, and can adapt to various rock drilling;
4) It can meet the needs of the construction schedule;
5) The number of holes can be reduced, and the hole spacing is relatively larger than that of a handheld drill.
2. Disadvantages are:
1) High price and large investment;
2) High fuel consumption, large loss and high maintenance cost;
3) Not suitable for various terrains and requires road repair;
4) Slow walking speed and not suitable for frequent mobile operations;
5) Operation generally requires 2 people to work together.
