CN103399137A

CN103399137A - Determination method for sympathetic explosion distance of explosive

Info

Publication number: CN103399137A
Application number: CN2013103426726A
Authority: CN
Inventors: 康强; 赵明生; 池恩安; 胡浩川; 沈晓松; 魏兴; 谢春明; 明悦
Original assignee: Guizhou Xinlian Blasting Engineering Group Co Ltd
Current assignee: Guizhou Xinlian Blasting Engineering Group Co Ltd
Priority date: 2013-08-08
Filing date: 2013-08-08
Publication date: 2013-11-20

Abstract

The invention discloses a determination method for sympathetic explosion distance of an explosive. The method comprises the following steps: an explosive is prepared into main triggering explosive cartridges and explosive cartridges to be triggered with a diameter of 35 mm, with a specified density, and with a weight of 150 g or 200 g; the main triggering explosive cartridge and the explosive cartridge to be triggered are fixed on a rope or a rod; the two explosive cartridges are arranged at a certain distance; a No.8 detonator is inserted in the main triggering explosive cartridge and the insertion depth is two-thirds of the detonator length; the energy focusing cave of the detonator is arranged toward the explosive cartridge to be triggered during testing; after initiation of explosion, the sympathetic explosion condition of the explosive cartridge to be triggered is checked, after three successive sympathetic explosions, the longest distance is taken as the sympathetic explosion distance of the explosive. When the method is combined with the explosive application condition tests, the obtained results can directly reflect sympathetic explosion safety distance of an explosive under application conditions. The method can provide reliable reference data for storage, transportation and usage of explosives.

Description

A kind of sympathetic detonation distance of explosive assay method

Technical field

The present invention relates to a kind of sympathetic detonation distance of explosive assay method.

Background technology

Induced detonation is exactly the phenomenon that can excite outer another explosive cartridge bag blast of certain distance after explosive charge, the explosive cartridge bag that first explodes is called the main powder charge of sending out powder charge, being excited and is called by a powder charge, when being sent out a powder charge induced detonation probability and being 100%, main send out powder charge with sent out between powder charge apart from being called gap distance.When the probability of being sent out the powder charge induced detonation is 0%, main send out powder charge with sent out between powder charge apart from being called safety gap distance.The principal element that affects induced detonation has the impact energy of positive pressure of shock wave, action time and the temperature of main powder charge generation, fireball radius, detonation product high-velocity particles, sent out sensitivity, the physical dimension of powder charge, sent out powder charge different-energy is excited the response etc. of form.Guarantee that in explosive production and in storing not induced detonation of explosive is the most basic requirement, many technical elements also need to determine the gap distance of explosive in the use procedure of explosive.The method of testing of existing sympathetic detonation distance of explosive is the sand ground method that adopts, and is will be according to prepared by the certain size requirement being placed in semi-circular groove without the shell powder stick, with No. 8 blasting cap initiation donor charge bag test gap distances on sand ground.The sand ground method has limited the cartridge bag specification, and test condition is adobe blasting, and is subject to the impact of the factor such as the grains of sand.Due to explosive application in varying environment, different purpose, be subject to the impact of the factors such as different cartridge bag specifications, environmental baseline, therefore the sympathetic detonation distance of explosive of determining by the simple experiment under specified conditions does not have complete universality, although, such as the gap distance that the sand ground method is measured can be deposited distance be used to instructing explosive, for this, deposit distance error larger.

Summary of the invention

The present invention aims to provide a kind of assay method of sympathetic detonation distance of explosive, guarantees to measure reliable sympathetic detonation distance of explosive.

The technical solution used in the present invention, a kind of assay method of sympathetic detonation distance of explosive comprises following operation steps:

(1) explosive to be made to diameter be 35mm and have regulation density, quality is the donor charge bag of 150g or 200g and is sent out cartridge bag, then by the donor charge bag with by a cartridge bag, by preset space length, be fixed on a rope or on bar, and insert No. 8 detonators at donor charge Bao Yiduan, insertion depth is 2/3 of cap length, the detonator sockets for collecting energy is towards being sent out the cartridge bag direction, after detonating, donor charge bag and quilt are sent out a cartridge bag and have all been exploded, illustrate and sent out cartridge bag induced detonation, strengthen again the donor charge bag and tested by the spacing of a cartridge bag, continuous three times all the ultimate range of induced detonation as the gap distance of this explosive,

After detonating, by being sent out also residual unexploded residual medicine of cartridge bag, illustrate that the powder stick spacing is excessive, must reduce the distance, remake and test until while finding the ultimate range that recurs three induced detonation.

The method can directly reflect the safety gap distance of explosive under application conditions in conjunction with the result of explosive application condition test gained, can store for explosive, transports, use more reliable reference data is provided.

The accompanying drawing explanation

Fig. 1 is that rope suspension method sympathetic detonation distance of explosive is measured schematic diagram;

Fig. 2 is that cross bar suspension method sympathetic detonation distance of explosive is measured schematic diagram;

Fig. 3 is that montant suspension method sympathetic detonation distance of explosive is measured schematic diagram;

In accompanying drawing: 1 donor charge bag 2 is sent out cartridge bag 3 detonator 4 rope 5 weight 6 cross bar 7 montants.

Embodiment

The invention will be further described below in conjunction with accompanying drawing.

Embodiment 1, as shown in Figure 1, at first a firm bridge is set be used to suspending rope 4 in midair, for ease of the height of operation bridge, bridge is unsuitable too high when meeting the test needs; It is that 35mm the quality with regulation density are the donor charge bag 1 of 150g and are sent out cartridge bag 2 that explosive is made to diameter, by donor charge bag 1 with by a cartridge bag 2 use ropes or adhesive tape, according to predetermined spacing middle position, be banded on rope 4, the rope 4 of use should have sufficient intensity; At donor charge bag 1 one ends, insert No. 8 detonators 3, insertion depth is 2/3 of detonator 3 length, detonator 3 sockets for collecting energy should be towards being sent out cartridge bag 2 directions when test, then rope 4 is firmly hung and is fixed on bar, then in rope 4 lower ends, tie up weight 5, rope 4 integral body can be strained vertically naturally; After above work completes, namely can test at the outer detonating powder of safe distance, after detonating, two

cartridge bags

1,2 have all exploded, illustrate and sent out cartridge bag 2 induced detonation, the spacing that strengthens donor charge bag 1 again and sent out cartridge bag 2 is tested, continuous three times all the ultimate range of induced detonation as the gap distance of this explosive; If after detonating, by being sent out also residual unexploded residual medicine of cartridge bag 2, illustrate that donor charge bag 1 and quilt cartridge bag 2 spacing are excessive, must reduce the distance, remake and test until while finding the ultimate range that recurs three induced detonation.

embodiment 2, as shown in Figure 2, cross bar 6 is fixed on two supports, two stands should have the 3m spacing at least, it is that 35mm the quality with regulation density are the donor charge bag 1 of 150g and are sent out cartridge bag 2 that explosive is made to diameter, at donor charge bag 1 one ends, insert No. 8 detonators 3, insertion depth is 2/3 of detonator 3 length, detonator 3 sockets for collecting energy should be towards being sent out cartridge bag 2 directions when test, by donor charge bag 1 with by cartridge bag 2 a use rope or adhesive tape, be fixed on the cross bar 6 of a straight difficult deformation, then by cross bar 6 fixation on support, after detonating, donor charge bag 1 and quilt are sent out a cartridge bag 2 and have all been exploded, illustrate and sent out cartridge bag 2 induced detonation, strengthen again two

cartridge bags

1, 2 spacing is tested, continuous three times all the ultimate range of induced detonation as the gap distance of this explosive,

After detonating, by being sent out also residual unexploded residual medicine of cartridge bag 2, illustrate that

cartridge bag

1,2 spacings are excessive, must reduce the distance, remake and test until while finding the ultimate range that recurs three induced detonation.

embodiment 3, a montant 7 is fixed on to ground, it is that 35mm the quality with regulation density are the donor charge bag 1 of 150g and are sent out cartridge bag 2 that explosive is made to diameter, by donor charge bag 1 with by a cartridge bag 2 use ropes or adhesive tape, according to predetermined spacing middle position, be banded on montant 7, after having fixed, can insert No. 8 detonators 3 at donor charge bag 1 one ends, insertion depth is 2/3 of detonator 3 length, detonator 3 sockets for collecting energy should be towards being sent out cartridge bag 2 directions when test, insert detonator 3, personnel fall back on the safe distance test of detonating after outer, if after detonating, donor charge bag 1 and quilt are sent out a cartridge bag 2 and have all been exploded, illustrate and sent out cartridge bag 2 induced detonation, strengthen again 1 of two cartridge bags, 2 spacings are tested, continuous three times all the ultimate range of induced detonation as the gap distance of this explosive,

If after detonating, by being sent out also residual unexploded residual medicine of cartridge bag 2, illustrate that donor charge bag 1 and quilt cartridge bag 2 spacing are excessive, must reduce the distance, remake and test until while finding the ultimate range that recurs three induced detonation.

Claims

1. the assay method of a sympathetic detonation distance of explosive is characterized in that comprising following operation steps:

(1) explosive to be made to diameter be 35mm and have regulation density, and quality is the donor charge bag (1) of 150g or 200g and is sent out a cartridge bag (2);

(2) then by donor charge bag (1) with by a cartridge bag (2), according to preset space length, be fixed on a rope or on bar, and insert No. 8 detonators (3) at donor charge bag (1) one end, insertion depth is 2/3 of detonator (3) length, and detonator (3) sockets for collecting energy is towards being sent out cartridge bag (2) direction;

(3) after detonating, according to the place of placing from quick-fried powder stick, the residual medicine that has or not demonstration not explode fully, after detonating, donor charge bag (1) and quilt are sent out a cartridge bag (2) and have all been exploded, explanation is from sending out cartridge bag (a 2) induced detonation, then the spacing that adds donor charge bag (1) and sent out cartridge bag (2) tests, continuous three times all the ultimate range of induced detonation as the gap distance of this explosive;

(4) after detonating, from sending out also residual unexploded residual medicine of cartridge bag (2), donor charge bag (1) and excessive by cartridge bag (a 2) spacing be described, must reduce the distance, remake and test until while finding the ultimate range that recurs three induced detonation.