Several methods of static blasting rocks replacing traditional explosives

Due to policy environmental impact, routine explosives is getting more and more shrinking, and market accounting will be less and smaller. The static blasting rock industry quickly developed in major mins in China in recent years! Static blasting rock technology is a new type of technology instead of traditional explosive blasting.

The current market is in use: expansion, split rod, splitter, hydraulic impact hammer, milling machine and other products.

The principle of blasting of the expansion agent is different from the explosive, which is mainly banding in the crushed body (rock). The slow chemical reaction and physical changes have caused the grain deformation, and the temperature is increased, and the volume expansion is gradually increased to gradually rock demolition company increase the static expansion pressure of the hole wall, which causes the medium (rock) to disband.

The characteristics of the rock expansion agent 1, the expansion force is large: more than 122 MPa (1220kg / cm2).

2, the control is easy, the cutting is convenient: it can be easily controlled that the shape after the crushing is broken, and it needs to break, and it is required to stay.

3, the construction is simple, easy to operate: do not need detonator explosives, no need to put it, do not need professional work. The operator’s training time is very short.

4, environmentally friendly: silent, no vibration, no flying stone, non-toxic gas, no shock wave.

The expansion agent has a long construction period, the construction is low, the ventricular surface requirements are high, affected by the rain and temperature, with a slurry and alkaline harm, etc. There are more factors.

Working principle: Usually broken object (rock) compressive strength, but tensile strength Low, hydraulic rock cleft rod is the characteristic of its tensile strength, with high pressure oil as an energy source, ultra-high electrical oil output by the hydraulic power station and drives the split rod after the mechanical amplification of the pressurizer The inner cylinder produces a huge driving force, pushing the hydraulic top outward of the split rod to extend the fluttering rock, the liquid pressure instant high pressure, reaches a splitter of thousands of tons, which is easy to rock inside the rock in two minutes. Split and cause the object to split in a predetermined direction to achieve the purpose of flushing and crushing excavation.

The characteristics of hydraulic splicing rod

There is no vibration, no impact, no noise, no dust, so uninterrupted operation, work efficiency High, high work effect, etc. Compared with blasting, there is no need to adopt any safety measures, no dangerous flying stone, no vibration; and fracture time, cost and time are greatly saved. Houses, buildings, etc. above the rocksIt is dangerous and it can easily break the rock.

Hydraulic splicing stick disadvantages

1 2, low output: Unable to achieve multi-row blasting, resulting in a single blasting number should not exceed two rows, more than one row is broken. 3, the drilling requirements are high: high for drilling quality requirements.

Swelling rock, concrete technology is a static blasting rock body, rock block and concrete New technologies of the body (pieces). It is an engineering equipment that is separated from rock mass or fragmentation of the rock block or fragmentation of the rock block or a slightly swelled force generated by the pressure can be generated by pressing the drilling.

Swaped cracking rock equipment characteristics

Safety: Waterfoliation cracking rock is a controllable work in a static water pressure (hydraulic) environment, not as blasting and other impact removal Some dangerous hazards are produced, and there is no need to take relatively complex safety protection measures; Environmental protection: When the florescence is working, there will be no vibration, impact, noise, dust dishes, etc. The surrounding environment will not be affected. Even in a dense region or room, it can work without interference next to the close equipment;

Economical: Splitting of the rock can complete the splitting process of the rock, can be completed Homework, high work efficiency. And the flushing device can easily wear drilling and not damaged, with flexible adaptability and longer service life, low equipment operation and maintenance cost;

practicality: swell The cleavage is light, and the supercharger host with casters, and the handling is convenient. The use of the structural design and durability of the weltzer cleavage ensures that it is easy to learn, single-person operation. The water deflation has a flexible trait, and the length can be increased unlimited (currently up to 2 meters), which can effectively reduce the number of punching, and achieve more equivalent of single bloating, improve work efficiency;

Flexibility: The splitter has a small size, light weight, and a splitting force (50-500 tons of splitting force), in addition to the conventional mines, tunnels, slopes, etc., and even space narrow venues Construction can be performed very conveniently.

Waterfoliation cracking rock equipment disadvantages

need to use the junction surface to have an effect, the uncomfortable work surface of the emptiness is not suitable. Unable to achieve multi-row blasting.

is composed of two parts of the pumping station and the cleavager, and the high pressure oil output by the pumping station during operation. Drive the cylinder, generate huge thrust, drive the intermediate wedge in the wedge groupExtended forward, open the reverse wedge to both sides, ie, splitting the fractional object (rock).


1 Static controllable work. Therefore, there is no need to take complex safety measures, which will not be damaged as blasting and other impact resistance.

2, environmentally friendly green environmental dismantling expert – When the hydraulic splitter works, there will be no vibration, impact, noise, dust disappointment, etc., the surrounding environment will not be affected. Even in the dense regional or indoor, urban construction, and close equipment, there is no interference.

3 Surruption or other time consuming and expensive safety measures are taken as homework. 4, easy to learn using flexible hydraulic splitter, only single operation; in indoor or narrow venues can be easily removed; at the same time, it can work underwater. Convenient maintenance and long service life.

The shortcomings of the rock spraser


2, low output: Unable to achieve multi-row blasting, resulting in a single blasting number should not exceed two rows, more than one row is broken.

3, the drilling requirements are high: high for drilling quality requirements.

4, a bigger problem is due to large cylinder top power, and encountering a particularly hard rock wedge group wear serious or fractive.