CN2929636Y

CN2929636Y - Multiway energy focus blasting device

Info

Publication number: CN2929636Y
Application number: CN 200620074521
Authority: CN
Inventors: 邵鹏; 贺永年; 张勇; 吴晓锁; 朱佑国; 张清峰; 陈坤福; 朱玉晓
Original assignee: China University of Mining and Technology CUMT
Current assignee: China University of Mining and Technology CUMT
Priority date: 2006-06-27
Filing date: 2006-06-27
Publication date: 2007-08-01
Anticipated expiration: 2016-06-27

Abstract

The utility model is a multi-direction poly energy disrupting device which comprises an annular tube uniformly distributed with a plurality of convexes, wherein a special-shaped cartridge matching with the convex inner wall which is pressed is equipped inside the annular tube. The convex part forms an energy cavity of the multi-direction poly energy disrupting device, the explosive energy accumulates along the energy cavity when exploding, which forms a high speed fluid jet and makes a plurality of radial fissures around a borehole preferentially, and then expands fast on the effect of the explosion gas, cuts the stones into chops, with a simple structure and a convenient usage, thereby increasing the bruising rate by 15 to 20 %, meanwhile decreasing the blasting shock, decreasing the quantity of a drill hole and the consumption of blasting agents, increasing the blasting efficiency and saving cost with a wide practicality.

Description

A kind of multidirectional CUMULATIVE BLASTING device

Technical field

The utility model relates to a kind of multidirectional CUMULATIVE BLASTING device, is particularly useful for the rock orientation is cut into the explosion of even sillar.Be suitable for the explosion of solid rock, also be fit to the soft rock explosion.

Background technology

Explosion is by the general fields such as exploitation that are applied to mine construction, hydraulic engineering, railway and highway construction, urban architecture engineering and various natural mineral resources, and the form of the explosion of employing has varied, and wherein the shot hole blasting form is most widely used in engineering.At present, be used for the charge constitution that fractured rock and concrete drillhole blasting generally adopt coupling or approaching coupling, the detonation stresses ripple that causes explosive charge to produce very easily forms crush zone on every side in the big gun hole, though the crush zone scope not quite but consumed a large amount of explosive energies, the existence of crush zone has simultaneously further hindered the infiltration in detonation gas crack around the big gun hole again, broken scope is reduced, therefore the explosive charge capacity usage ratio is very low, directly cause blast hole utilizing factor not high, explosive consumption and explosion harm are big, problems such as blasting efficiency is low, increase blasting cost, influenced construction speed.In addition, the explosive energy utilization rate is low will directly to cause drilling hole amount many, and the bore operation time is increased, and the boring cost increases, and influences blasting efficiency.

Summary of the invention

Technical problem: the purpose of this utility model provides the multidirectional CUMULATIVE BLASTING device that a kind of broken scope is big, demolition effect is good.

Technical scheme: a kind of multidirectional CUMULATIVE BLASTING device of the utility model, it comprises that an inwall is evenly distributed with the sleeve pipe of a plurality of projectioies, is provided with in the sleeve pipe with convex inner walls to closely cooperate and extruded cartridge bag, the length of sleeve pipe is greater than the length of cartridge bag.

A kind of multidirectional CUMULATIVE BLASTING device of the utility model, a plurality of projectioies of described internal surface of sleeve pipe are 5～8; A plurality of projectioies of described internal surface of sleeve pipe can be V-arrangements, also can be toroidal and arc; Described sleeve pipe can be nontoxic stereoplasm tube plastic tube, also metal tube, glass tube or earthenware.

Beneficial effect: a kind of multidirectional CUMULATIVE BLASTING device of the utility model, employing is provided with a plurality of projectioies by inwall sleeve pipe with its tight cartridge bag of cooperating of extruding mutually, the cartridge bag formation sockets for collecting energy that is squeezed, this device can send energy-gathering jetting from sockets for collecting energy at explosion time, blasthole hole wall is formed along the equally distributed advantage crackle of sockets for collecting energy direction, avoid or reduce crush zone forming, thereby it is low thoroughly to have solved the explosive energy utilization rate, the problem that explosive consumption is big and drilling hole amount is many.The explosion and crushing scope is 1.2～1.5 times of traditional blasting method, therefore under identical demolition effect, can significantly reduce big gun hole number and explosive payload, reduce the once detonation dose, avoid taking place explosion harm, alleviate keeping the disturbance of rock mass, raising blast working efficient also reduces labor intensity, and both has been suitable for the explosion of solid rock, also is fit to the soft rock explosion.Its blasting energy utilization rate height, breaking capacity is strong, and broken scope is big, the explosion lumpiness is even, installation rate is fast, and the blasting work amount is little, and is time saving and energy saving, the blasting efficiency height, the saving blasted material consumes, and reduces labor intensity, and the once detonation dose is few, can reduce concussion of blasting, noise, air-shock wave, slungshot and, have practicality widely the damage of surrounding rock body.

Description of drawings

Fig. 1 is the multidirectional CUMULATIVE BLASTING device of a utility model cross-section structure.

Among the figure: 1-projection, 2-sleeve pipe, 3-cartridge bag, 4-sockets for collecting energy, 5-big gun hole.

The specific embodiment

Below in conjunction with accompanying drawing an embodiment of the present utility model is further described:

A kind of multidirectional CUMULATIVE BLASTING device of the utility model, it mainly is made of plastic bushing 2, cartridge bag 3, the inwall of plastic bushing 2 is evenly distributed with 5 V-arrangement projectioies 1, the cartridge bag 3 that closely cooperates with V-arrangement projection 1 inwall and be squeezed abnormity is housed in the plastic bushing 2, form the sockets for collecting energy 4 of multidirectional CUMULATIVE BLASTING at V-type projection 1 position, the length of plastic bushing 2 is set according to on-site actual situations, and the length of plastic bushing 2 is than the long 3～5cm of length of cartridge bag 3.

Application process: the demolition set that detonating capsule is housed is sent into big gun hole 5, ignite behind on line, the sealing of hole, explosion energy produces along the sockets for collecting energy direction and converges, form rock around the high speed energy-gathering jetting penetration big gun hole, make and be pre-formed many radial crackings on the hole wall with expansion advantage, detonation gas pours in crackle rapidly subsequently, further promotes the crackle expansion.And on other direction beyond sockets for collecting energy 4 directions, plastic tube is suppressed the expansion of initial fissure to the inhibition of explosion product and the characteristic according to qualifications of crackle expansion.Simultaneously, because demolition set transforms explosion energy, portion of energy is used for the jet penetration effect, greatly reduces the impact of explosion wave to hole wall, thereby can avoid or reduce the formation of crush zone.When detonate simultaneously in a plurality of big guns hole 5, the directed crackle of cumulative that is set out by a plurality of big guns hole 5 cuts into even sillar with rock, can improve rock-breaking efficiency and explosive energy utilization rate greatly.

Claims

1. multidirectional cumulative device that exposes to the sun brokenly, it is characterized in that: it comprises that an inwall is evenly distributed with the sleeve pipe of a plurality of projectioies (1) (2), be provided with in the sleeve pipe (2) with projection (1) inwall and closely cooperate and extruded cartridge bag (3), the length of sleeve pipe (2) is greater than the length of cartridge bag (3).

2. the multidirectional cumulative according to claim 1 device that exposes to the sun brokenly, it is characterized in that: a plurality of projectioies (1) of described sleeve pipe (2) inwall are 5～8.

3. the multidirectional cumulative according to claim 1 and 2 device that exposes to the sun brokenly, it is characterized in that: a plurality of projectioies of described sleeve pipe (2) inwall can be V-arrangements, also can be toroidal and arc.

4. the multidirectional cumulative according to claim 1 device that exposes to the sun brokenly, it is characterized in that: described sleeve pipe (2) can be nontoxic stereoplasm tube plastic tube, also metal tube, glass tube or earthenware.