CN1044113C - Non-electric detonating system for coal mine - Google Patents

Abstract

The present invention relates to a detonating system with a non-electric detonating tube and a method and a device which are used for detecting the conduction of the detonating system before detonation. The allowed conductive non-electric detonating system for coal mines is formed by connecting the non-electric detonating tube with a detonator in series. The present invention has only an exciting end and a tailing end, and a fully enclosed detonating network is formed after the two ends are sealed. A signal emitter and a signal receiver are respectively arranged on the exciting end and the tailing end before detonation for conveniently detecting the conduction of the full network. The present invention not only can be widely applied to general engineering detonation, but also can be applied to engineering detonation under coal mines or other engineering detonation in which the non-electric detonating tube can not be used originally.

Description

Non-electric detonating system for coal mine

The present invention relates to a kind of nonel tube priming system and quick-fried before it is carried out the method and apparatus of conduction detection.

Known non-conductivity blasting system is made up of plastic detonating tube, delay detonator and propagation of explosion link block three parts.Primacord is the internal diameter 1.5mm that is made by the plastics of a kind of being called (surlyn), external diameter 3mm plastic straw.The inwall of pipe scribbles skim explosive (HMX) and aluminium powder, or the mixture of RDX and aluminium powder.When an end of pipe was ignited by shockwave (rather than flame), chemical reaction took place rapidly in the mixture of inside pipe wall, produced detonation, and speed is about 2000 meter per seconds.Delay detonator is made up of shell, base charge, priming explosive, delay powder, rubber seal plug and Nonel primacord, and this detonator can bear certain pulling force.Nonel propagation of explosion link block, by the linker that detonator or plastics tagblock are formed, its effect is that the detonation wave ABC on the same direction divides the branch road transmission.When detonating, excite nonel tube with detonating primer, detonation wave in the nonel tube is propagated with the speed of 2000 meter per seconds, nonel tube or detonator in the detonation wave propagation of explosion coupling block, thereby make detonation wave along separate routes, the detonation wave of a certain shunt passes to detonator, ignites through suitable delay detonator, last primer.

Nonel tube has used in the explosion in the fields such as ore deposit, metallurgy, railway, water power, chemical industry, military affairs, city controlled blasting since coming out in the open widely, has produced very large economy benefit and social benefit.Nonel tube has the advantage of many uniquenesses: to static, thunder and lightning, stray current, radio-frequency current and hertzian wave is safe, the delay precision height, and also it is unrestricted once to blow out the fashionable dress dose, also is not subjected to the constraint of blasting machine capacity.Because nonel tube itself does not produce destructiveness, is not explosives, therefore all use widely on the ground or in the subterranean engineering explosion.

But the nonel tube system also exists many fatal shortcomings, and 2～10% the rate of miss-firing appears in the improper use meeting.Water and silt particle easily penetrate in the primacord from the joint, can not act in the big work of underground water.Not anti-inflammable gas and combustible dust blast can not be used under these occasions, especially not anti-methane and coal dust explosion, and absolute prohibition uses under coal mine.Can't carry out conduction detection with instrument before nonel tube priming system networking is quick-fried, the reliability of detonating can't be known in advance, therefore often produces the very high rate of miss-firing, and the demolition duty of can not guaranteeing both quality and quantity to finish is got rid of blown-out shot simultaneously and had very big danger.

The present propagation of explosion link block of nonel tube (or claiming Multi-ported device), what have itself is exactly detonator, have by shock reflection in the primacord or excite other primacord along separate routes.Therefore be bound to occur tangible shockwave and spark at connecting portion, high to the ignition rate of methane, inflammable gas and combustible dust.

Since detonating tube detonation system can not be quick-fried before conduction detection, blasting network connects quality and how much is determined by operator's skill level and experience fully, without any reliable scientific method, therefore in the porous blasting works of particularly important, can only use the electric detonator initiation system, and the environment that has often electrical signal is very strong, the morning that repeatedly meets accident quick-fried accident, cause personal injury, property damage brings very big wound for people's soul.

The object of the invention be exactly to solve can not detect before quick-fried that the nonel tube priming system exists with coal mine under problem safe in utilization, but propose a kind of conducting Permitted Detonator for Coal Mining nonel tube priming system and quick-friedly preceding it carried out the detection method and the device of conduction detection.The nonel tube priming system is widened use range, it be can be used in the downhole coal mine explosion or other can not use in the engineering explosion of nonel tube originally.And the advantage of performance nonel tube, water resisting property, anti-knocking property, the elimination that solves nonel tube problem such as miss-fire guarantees the reliability of detonating in the networking.Use the present invention simultaneously and also can carry out quick-fried preceding networking checking, it is quick-fried that this inspection is not missed by the interference of electrical signal thereby yet unlikely generation, can greatly improve electric security.

The technical scheme that realizes the object of the invention is:

But conducting Permitted Detonator for Coal Mining non-conductivity blasting system, form by nonel tube serial connection detonator, have only one to excite end, an ending end, excite on end and the ending end hermetically sealed sleeve pipe all is housed, can prevent the evagination of shockwave and spark effectively, excite on the end 3 and draw excitation line outside complete close soil suite pipe by being bound up on, connect blasting machine and carry out the nonel tube internal excitation, or use other excitaton sources to excite.

But conducting Permitted Detonator for Coal Mining non-conductivity blasting system proofing unit, a signal projector is housed exciting on the end, on the ending end, a signal receiver is housed, when signal receiver can accurately receive when transmitting, it is intact to prove that whole networking connects, the energy reliable initiation, on the contrary illustrate that then fault is arranged in the networking, can get rid of in advance.

Purpose of the present invention can also realize by following technical measures:

But conducting Permitted Detonator for Coal Mining non-conductivity blasting system, per ten tie in into one, after the conduction detection, every excite end and ending end are shut, so that store and transportation.

Non-electric detonating system for coal mine, joint use two logical plastic casings, are enclosed within two disconnected tube outsides, seal with quick-acting binder, and water bag is put in the joint; Excite end and the available hermetically sealed bobbin seal of ending end, also can adopt the water bag tightness system of making by other materials, to eliminate shockwave and spark.

But conducting Permitted Detonator for Coal Mining non-conductivity blasting system, hermetically sealed sleeve pipe 1 or 7 are that an end is uncovered, the U-shaped sleeve pipe made of plastic of end sealing, and its internal diameter just is slightly larger than nonel tube 5 external diameters, are enclosed within during use to excite on end 3 or the ending end 6.

But conducting coal mining type non-electric initiation system means and will excite end or ending end termination to shut with the material of butter and so on as hermetically sealed telescopic water bag tightness system, in the plastics or rubber bag that are filled with water of packing into.

Non-electric detonating system for coal mine will finish up and hold and excite end and downlink connection on blasting machine or other excitaton sources, carry out the two ends simultaneous excitation, detonate to realize single-shot detonator double loop.

Non-electric detonating system for coal mine, two other nonel tube and other network cross bracings, or be connected in series with this networking, so just can realize that multiloop detonates, guarantee that blasting network is more reliable.

Non-electric detonating system for coal mine proofing unit, signal projector are the light instrument of calming the anger or bleed, and signal receiver is the gas column indicating unit, but also the adapted electricity or the non-electrical signal indicating meter.

Non-electric detonating system for coal mine structure of the present invention and detection means are very simple, but reliable effect, security are good, a series of problems but conduction detection, water resisting property, anti-detonation, the elimination that can solve nonel tube are miss-fired etc., and can widen the range of application of this priming system of nonel tube greatly, can be widely used under the coal mine or other can not use in the engineering explosion of nonel tube.If itself and up-to-date patented product simple and easy fling chip without detonating powdew thunder and simple and easy impact fling chip detonator are used, so whole priming system is explosive and do not have priming explosive and other any responsive medicaments entirely, therefore can thoroughly solve the three wastes pollution problem that occurs in the safety problem of production, transportation, storage, use of this priming system and the production process thereof.

The drawing of accompanying drawing is described as follows:

But the accompanying drawing 1 non-electric detonation system diagram that is the conducting Permitted Detonator for Coal Mining;

But accompanying drawing 2 connects network chart for the conducting non-electric initiation system segmentation that is used in non-particular surroundings;

Accompanying drawing 3 is conducting Permitted Detonator for Coal Mining non-electric initiation system joint water bag sealing synoptic diagram;

But accompanying drawing 4 is for adorning the conducting non-electric initiation system figure of four nonel tubes on single detonator;

Accompanying drawing 5 is use syringe and U-shaped pipe liquid column pressure measurement display unit, but detects the non-priming system schematic diagram of conducting Permitted Detonator for Coal Mining;

Fig. 6 is for using water column lifting and lowering method mensuration priming system figure in syringe and the U type pipe;

Below in conjunction with accompanying drawing embodiment of the present invention is described in further detail;

Non-electric detonating system for coal mine as shown in Figure 1, form by the some detonators 4 of nonel tube 5 serial connections, have only one to excite end 3, an ending end 6, form a totally enclosed blasting circuit, make primacord propagation of explosion networking not have joint, excite end 3 that hermetically sealed sleeve pipe 1 is housed, on the ending end 6 hermetically sealed pipe 7 is housed, make its with the external world without any contacting.Be bound up on to excite and hold the excitation line 2 that goes up and draw outside the hermetically sealed sleeve pipe 1, connect blasting machine and carry out the nonel tube internal excitation, or use other excitaton sources to excite.After exciting end 3 to be excited, detonation wave go side nonel tube 3 in the pipe reaches first detonator, 4 powder charge tops, ignite first detonator 4 on the one hand, reflect into the UNICOM's nonel tube 5 that connects between first, second detonator 4 on the one hand, detonation wave reaches second detonator 4 by UNICOM's nonel tube 5 again, so go down, ignite until all detonators 4.

In this blasting circuit, just on a first tail detonator 4, excite end 3 and ending end 4 opening mouth, and all taked seal approach.Hermetically sealed sleeve pipe 1 and 7 is that an end that is made of plastics is uncovered, the U-shaped sleeve pipe of end sealing, and its internal diameter just is slightly larger than the plastic detonating tube internal diameter, is enclosed within during use to excite on end 3 or the ending end 6 and can effectively it be hedged off from the outer world.Do not have tie point or branching unit in the middle of the networking, so detonation wave all is controlled in the inside of termination nonel tube 5 and UNICOM's nonel tube 5, do not come in contact with the external world.So can not occur the evagination of shockwave and spark in the middle of the networking.This shows, use this technical scheme can solve nonel tube and ignite methane, inflammable gas and combustible dust, effectively problem such as waterproof.Can use safely under coal mine, under water or in other particular surroundings.

As non-electric detonating system for coal mine of the present invention being applied in ground or other the non-particular surroundings, for process, transportation and easy to use, can arbitrarily make the nonel tube string by the detonator section with this system as required.As shown in Figure 2, with every section two ends butt joint, one two logical plastic casing 20 of overcoat makes interface alignment and fixing, makes these two ends be connected into one, constitutes the intercommunicating device that connects two detonators 1, the blasting effect that can obtain to envision during ignition during use.In this case, excite end 3 and ending end 6 all can directly connect excitation line 2, need not to add hermetically sealed sleeve pipe 1 or 7.

As the present invention being exclusively used under the coal mine or during other particular surroundings, being serially connected with fixed number capsular admittance Permitted Detonator for Coal Mining non-electric initiation system but add directly to make as required man-hour.Preferably 10 in the detonator of the totally-enclosed system that nonel tube 5 is connected into is tied into a branch ofly, and ten tie in into one, after the conduction detection, every handle is swashed the termination of end 3 and ending end 6 and shuts, and is convenient to like this store and transportation, and guarantees safety.This can be by the non-electric detonating system for coal mine of detonator manufacturing firm direct production, when using to the inferior scene of coal mine, open and seal and to use, need not to carry out again conduction detection, very convenient, if will detect this a collection of quality product, need only therefrom sampling Detection, because the conducting number of times is many more, the medicinal powder moving displacement in the primacord is big more, and is unfavorable to propagation of explosion.Under coal mine actual use can be many as required serial connection, after also the plurality of sections string can being socketed again with one being connected of cutting off getting certain period, or only link to each other with certain section in addition with cutting off certain section of one, very random.As shown in Figure 3, the joint will use two logical plastics tubings 22 to be enclosed within outside two fractures that connect, and seals with quick-acting binder, and water bag is put in the joint during connection.Excite the end 3 and the open-mouth of ending end 6 to adopt and hermetically sealed sleeve pipe 1 and 7 sealings, also can adopt other material to make the water bag tightness system, thereby eliminate shockwave and spark.This water bag tightness system means the primacord termination is shut with the material of butter and so on, in the plastics or rubber bag that are filled with water of packing into.

In order to detonate reliably at the networking, ending end 6 also can be connect excitation line 2 draws outside complete close sleeve pipe 7, to finish up end 6 with excite end 3 and be connected on blasting machine or other excitaton sources, carry out the two ends simultaneous excitation, can realize that single-shot detonator double loop detonates, this is that electrical detonator or other blasting circuits can't realize.

Can also be as shown in Figure 4, on single detonator 4, adorn wherein two nonel tubes 5 formation paths of four nonel tubes 5, two other non-primacord 5 is connected in series with other networking cross bracings or with this networking, so just can realize that single-shot detonator multiloop detonates, and guarantees that blasting network is more reliable.

Non-electric detonating system for coal mine proofing unit of the present invention can carry out examination of channel on whole network easily.As long as exciting end to adorn a signal projector on 3, on ending end 6, load onto a signal receiver, the emission of its signal and accept to determine by the air pressure size of non-primacord 5 inside.Exciting on the end 3 of sealing calmed the anger or bled in principle right and wrong electricity primacord 5 systems, cause and in the primacord system of sealing, form malleation or negative pressure, bring in the variation of mensuration system internal pressure from another, promptly when signal receiver can be measured the internal system pressure change exactly, that is to say when signal receiver accurately to receive when transmitting that it is intact to prove that whole networking connects, can reliable initiation, otherwise then illustrating has fault in the networking, can get rid of in advance.Signal projector can be light calm the anger or bleed instrument such as injector for medical purpose, rubber bag tank, air bag, minitype piston, small-sized inflator, signal receiver can be gas column indicating unit such as gas-pressure meter, vacuum meter, mercury manometr, U-tube manometer is calculated, but signal display apparatus also electricity consumption or non-electricity.

Accompanying drawing 5 is that a kind of use syringe and glass U-shaped pipe liquid column pressure measurement display unit are surveyed inspection non-electric detonating system for coal mine embodiment.This scheme as signal projector, is a signal receiver with this post of glass U-shaped pipe liquid pressure measurement display unit 11 (hereinafter to be referred as U-shaped pipes) with medical notes device 9.Syringe 9 syringe needles insert the present invention and excite in the end 3, and finish up 6 at end of the present invention links by hollow needle 10 and U-shaped pipe 11 left ends, is marked with conducting liquid 12 in the U-shaped pipe 11, liquid level be lower than right-hand member hollow needle 10 and with they at a distance of certain space.Thunder is equipped with electrode 19, one ends and hollow needle 10 links in the pipe of U-shaped pipe 11 left side, in the end immersion conducting liquid 12.With hollow needle 10 that U-shaped pipe 11 communicates respectively end to end on, also be parallel with the acousto-optic electrical signal show circuit of a serial connection power supply 13, switch 11, power meter 15, pilot lamp 16, sounder 17.When to be syringe 9 with signal generator slowly calm the anger in nonel tube of the present invention system, press slowly in it and raise, make conductive liquid scapus 12 left sides in the U-shaped pipe move down, the right moves upward, until contacting with the right hollow needle 10, make the conducting of acousto-optic electrical signal show circuit, send sound, light, electrical signal.Making easy the judging in the conduit system of people is the high pressure area, proves that priming system is reliable, thereby reaches the purpose that the present invention is realized quick-fried preceding networking conduction detection.

The inwall of nonel tube 5 has one deck to approach medicinal powder, and bonding is also insecure.When therefore calming the anger, should be slow as far as possible, otherwise medicinal powder can be blown in the U-shaped pipe 11.Enter in the U-shaped pipe 11 in order to eliminate medicinal powder, nonel tube ending end 6 can be changed to the right hollow needle 10 from the left side, excite calming the anger to change into and bleeding of end 3, form negative pressure, can reach the conduction detection purpose equally.Action is slow as far as possible when noting bleeding.

The another kind of pressure measurement display unit embodiment that simply is used to detect non-electric detonating system for coal mine is simply on the glass cylinder that injects water or the U-shaped pipe 11 with signal receiver.Can directly this system's ending end 6 be inserted in the water when using glass cylinder,, if the successive bubble floating is arranged in the glass cylinder, the networking conducting is described then, otherwise fault is just arranged, should in time get rid of exciting end 3 usefulness syringes 9 or other device of calming the anger slowly to calm the anger.When using U-shaped pipe 11, see Fig. 6, still with hollow needle 10 and ending end 6 UNICOMs of detected system, and insertion U-shaped pipe 11 left ends, simultaneously also insert a hollow needle 10 at right-hand member, the colored water 21 that is easy to observe will be injected again in the U-shaped pipe 11, and the hollow needle 10 that the water surface and left and right two ends are inserted keeps certain space length.Exciting end 3 to calm the anger this moment, and the water level of U-shaped pipe 11 right-hand members then upwards raises, if exciting end 3 to bleed, then the water level of U-shaped pipe left end upwards raises.Water level moves in a word then proves the networking conducting, otherwise fault is just arranged, and can in time get rid of.

Claims (10)

1, non-electric detonating system for coal mine, it is characterized in that forming by nonel tube (5) serial connection detonator (4), have only one to excite end (3), an ending end (6), excite the evagination that hermetically sealed sleeve pipe (1) and (7) can prevent shockwave and spark effectively is housed respectively on end (3) and the ending end (6), carry out the nonel tube internal excitation by being bound up on excitation line (2) the connection blasting machine that excites end (3) to go up and draw outside hermetically sealed sleeve pipe (1), or use other excitaton sources to excite.

2, according to the said non-electric detonating system for coal mine of claim 1, it is characterized in that per ten tie in into one, after the conduction detection, every excite end (3) and ending end (6) are shut, so that store and transportation.

3,, it is characterized in that use two logical plastic casings (20) in joint are enclosed within two disconnected tube outsides, seal with quick-acting binder, and water bag is put in the joint according to the said non-electric detonating system for coal mine of claim 2; Excite end (3) and ending end (6) available hermetically sealed sleeve pipes (1) and (7) sealing, also can adopt the water bag tightness system of making by other materials, to eliminate shockwave and spark.

4, according to the said non-electric detonating system for coal mine of claim 3, it is characterized in that said hermetically sealed sleeve pipe (1) or (6) are that an end is uncovered, the U-shaped sleeve pipe made of plastic of end sealing, its internal diameter just is slightly larger than nonel tube (5) external diameter, is enclosed within during use to excite on end (3) or the ending end (6).

5, according to the said non-electric detonating system for coal mine of claim 3, it is characterized in that said water bag tightness system mean will excite end (3) or ending end (6) open-mouth shut with the material of butter and so on, in the plastics or rubber bag that are filled with water of packing into.

6, according to the said non-electric detonating system for coal mine of one of claim 1 to 5, it is characterized in that ending is held (6) and excited end (3) and downlink connection on blasting machine or other excitaton sources, carry out the two ends simultaneous excitation, detonate to realize single-shot detonator double loop.

7, according to the said non-electric detonating system for coal mine of one of claim 1 to 5, it is characterized in that, two other nonel tube (5) and other networking cross bracings, or be connected in series with this networking, so just can realize that multiloop detonates, guarantee that blasting network is more reliable.

8, a kind of non-electric detonating system for coal mine proofing unit, it is characterized in that a signal projector being housed exciting on the end (3), on the ending end (6) signal receiver is housed, when signal receiver can accurately receive when transmitting, it is intact to prove that whole networking connects, the energy reliable initiation, on the contrary illustrate that then fault is arranged in the networking, can get rid of in advance.

9, said according to Claim 8 non-electric detonating system for coal mine proofing unit, it is characterized in that said signal projector is lightly to calm the anger or bleed instrument, signal receiver is the air pressure indicating unit, but the also electrical or non-electrical signal display apparatus of adapted.

10, according to the said non-electric detonating system for coal mine proofing unit of claim 9, it is characterized in that, signal receiver is reduced to glass cylinder or the U-shaped pipe (11) that injects water.

Images