CN86204836U - Explosion igniting system for non-electric plastic primacord in coal mine - Google Patents
Explosion igniting system for non-electric plastic primacord in coal mine Download PDFInfo
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- CN86204836U CN86204836U CN 86204836 CN86204836U CN86204836U CN 86204836 U CN86204836 U CN 86204836U CN 86204836 CN86204836 CN 86204836 CN 86204836 U CN86204836 U CN 86204836U CN 86204836 U CN86204836 U CN 86204836U
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- electric
- percussion
- tube
- nonel
- coal mine
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Abstract
The utility model belongs to a civil blasting material, which is an explosion igniting system for non-electric plastic primacord in coal mine used for mines with the explosive danger of gas and coal dust. The utility model is mainly composed of a non-electric plastic nonel in the coal mine, a non-electric initiator used in the coal mine and a non-electric detonator used in the coal mine, and is mainly characterized in that composite explosive powder coated on the inner wall of the non-electric nonel used in the coal mine is composed of aotuojin, flame cooling agents and micro technology additives. Except that the system has the advantages of the existing non-electric explosion igniting system, the system can ensure the safety at the time of using in an underground coal mine.
Description
The utility model belongs to industrial explosive material.
The priming system of generally using in the colliery is via blowing out bus connection electric detonator initiation explosive by detonating primer at present.Even this system uses in the mine of no gas, coal dust, also be subjected to the interference of static, electric leakage, induced electricity, stray electrical, radio frequency electricity easily, and cause that morning is quick-fried and lose the big gun accident.
Non-electric initiation system is that Sweden nitrated Nobel company is in the seventies invention, based on a kind of novel non-electric initiation system of NONEL pipe.
Units such as China East China Institute of Engineering have further succeeded in developing plastic detonating tube nonel ignition system with reference to the NONEL system.
This system is to be that main body constitutes with the plastic detonating tube, and plastic detonating tube is 2.95 ± 0.15 millimeters of external diameter φ, the high-pressure polyethylene flexible pipe that internal diameter φ is 1.4 ± 0.1 millimeters, and inwall is coated with the pyrotechnic composition powder.Its pyrotechnic composition powder composition and ratio are:
Otto gold 91% aluminium powder 9%
Add technology annexation 0.25～0.5%
The detonator of this system is to constitute with two electric payment to a porter and firing head that the plastic detonating tube of a desired length replaces short electric detonator or millisecond delay electric detonator, with reference to figure 3.In the system, the percussion of plastic detonating tube (ignition) device adopts any initiating equipment that can produce shockwave, as igniter cap, detonator, primacord fuse, ignite first-class.
The connection of blasting network:, must make initiating equipment connect into suitable networking for once igniting realization big area porous explosion.Method of attachment is multiple, can use propagation of explosion capsular mode, as shown in Figure 1, also can use the mode of connection of plastic detonating tube butt joint or booster branching unit.Butt joint is that two primacord two ends are connected, and adds plastic pipe sleeve and fixes; The branching unit mode is to make the primacord joints of many logical forms such as threeway, four-way, reaching purpose along separate routes, is moulding the conduit threeway or how is also scribbling the pyrotechnic composition powder identical with primacord in the pipe of logical junctor.Its method is well-known.
This system formally was applied to the place of no gas such as metallurgical ore deposit, open coal mine, coal dust explosion hazard in 1978.Main drawback is to be used in the underground blasting operation that contains gas, dust explosion risk.
The utility model is mainly studied the prescription of the inwall medicinal powder of plastic detonating tube at this shortcoming, succeeds in developing the Permitted Detonator for Coal Mining non-electric nonel tube, and as main body, the improvement system has constituted the allowed for use in coal mines non-electric detonator nonel tube system.
This system is made up of used 100 the explosion-proof type blasters in colliery, allowed for use in coal mines non-electric initiators, allowed for use in coal mines non-electric nonel tube, allowed for use in coal mines detonating primer and allowed for use in coal mines on-electric detonator.System forms as shown in Figure 1.
11,100 explosion-proof type blasters, 12, the allowed for use in coal mines detonating primer, 13, the allowed for use in coal mines non-electric nonel tube, 14, the allowed for use in coal mines detonating primer, 15,16 allowed for use in coal mines on-electric detonators.
In the system, detonating primer (14) and primacord (13) belong to same class, and just by the different different names that rise of purposes, according to actual service condition, length is also different, and in a system, (14) are many.Propagation of explosion detonator (16) and primer detonator (15) belong to the allowed for use in coal mines on-electric detonator together.(13), the method for attachment of (14), (15), (16) is a prior art.The main improved part of the utility model is:
1. allowed for use in coal mines non-electric nonel tube
Plastic detonating tube is the plastic hose by high-pressure polyethylene, thermoplastic shaping in extrusion machine, and in the thermoplastic process, the even coated mixed powder that contains high explosive of wall is adsorbed on the tube wall medicinal powder within it, and cooling forms then.The composition that it is characterized in that mixed powder is different with prior art with ratio, cancels aluminium powder here, and adds flame-cooling agent, and its composition and ratio thereof are:
The Otto gold: 70～90%, and 75～85% is preferable.
Flame-cooling agent: 10～30%, and 15～25 is preferable.
Outer doping: 0.25～0.50%
Flame-cooling agent adopts inorganic salts, can be metal chloride.
2. allowed for use in coal mines non-electric initiators
Be the parts that excite of allowed for use in coal mines non-electric initiation system.Principal character is to be contained in the special anti-explosion container leading quick-fried percussion pen.This container is to be made by resol, is preferably in the resin to add the material that glass fibre is known as glass reinforced plastic and make, and its structure is seen synoptic diagram (2).
Percussion pen (23) is installed in anti-explosion container shell (22) chamber, and two supply leads of percussion pen are done being connected of electricity by the terminal stud (26) on the bonnet (24) with mining 100 blasters (11) as system power supply.The one special body of rod (21) is arranged on protecgulum (27), and allowed for use in coal mines non-electric nonel tube one end is entered in the outer shell cavity by the mesopore (25) of (21) and (28), and is enclosed within on the percussion nib (23), and it is inserted in the part of pegging graft and is not less than 10 millimeters.For checking inner case, the bonnet (24) of protecgulum (27) is dismountable, and they and housing (22) can connect as one by screw.The percussion process of whole primacord is to carry out in the detonating primer chamber.
3. allowed for use in coal mines on-electric detonator
Be that its composition synoptic diagram that the research improvement forms on the basis of original colliery millisecond electric detonator or short electric detonator is seen Fig. 3.
31, allowed for use in coal mines non-electric nonel tube, 32, soft rubber ball, 33, air chamber, 34, attached copper shell, 35, the extension explosive, 36, primary explosive, 37, hexogen.
It is characterized in that replacing the two electric payment to a porter and the match board head of former millisecond electric detonator or short electric detonator with an allowed for use in coal mines nonel tube; Or the common plastics primacord skirt of existing non-electric short delay detonator and non-electric millisecond delay cap used instead allowed for use in coal mines plastic detonating tube of the present utility model and will add flame-cooling agent in high explosive hexogen powder column, can adopt metal chloride, also can use metal fluoride, promptly constitute the allowed for use in coal mines on-electric detonator.
Claims (4)
1, a kind of non-electric detonator nonel tube system, its major parts right and wrong electricity plastic detonating tube, its end connects the on-electric detonator of primary explosive, the other end connects the percussion lock of igniting non-electric nonel tube in order to percussion, primacord itself is the high-pressure polyethylene flexible pipe, in thermoplastic extrusion process, its inwall is the coated mixed powder thin layer that contains high explosive evenly, it is characterized in that:
The mixed powder composition and the ratio of primacord inwall are
Otto gold 70%～90%
Flame-cooling agent 10%～30% adopts inorganic salts
Processing additive 0.25%～0.5% in addition
The percussion pen of percussion lock is installed among an anti-explosion container of being made by resol, and non-electric nonel tube is pulled the trigger pen percussion ignition process and carried out in anti-explosion container fully;
The plastic detonating tube skirt of on-electric detonator adopts the said non-electric nonel tube of the utility model, adds a spot of flame-cooling agent in capsular high explosive hexogen powder column.
2, the said non-electric detonator nonel tube system of claim 1 is characterized in that the ratio of the medicinal powder composition that the plastic detonating tube inwall is coated is: Otto gold 75%～85% flame-cooling agent 15%～25% adopts metal chloride.
According to the said non-electric detonator nonel tube system of claim 1, it is characterized in that 3, the flame-cooling agent that adds in the high explosive hexogen powder column of its on-electric detonator is a metal fluoride.
4,, it is characterized in that the Permitted Detonator for Coal Mining non-electric initiators is provided with protecgulum (27), bonnet (24), and be connected and fixed, detachably by screw and shell of tank (22) according to claim 1,2,3 said non-electric detonator nonel tube systems; The plastic detonating tube of being ignited by percussion enters a end in the container and is socketed in that the percussion nib goes up, its socket part is no less than 10 millimeters, and the terminal stud (26) on two general bonnets of contact conductor (24) of percussion pen is connected with mining 100 detonating primers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86204836 CN86204836U (en) | 1986-07-12 | 1986-07-12 | Explosion igniting system for non-electric plastic primacord in coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86204836 CN86204836U (en) | 1986-07-12 | 1986-07-12 | Explosion igniting system for non-electric plastic primacord in coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86204836U true CN86204836U (en) | 1987-12-12 |
Family
ID=4807799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86204836 Withdrawn CN86204836U (en) | 1986-07-12 | 1986-07-12 | Explosion igniting system for non-electric plastic primacord in coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86204836U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100578136C (en) * | 2007-12-11 | 2010-01-06 | 莫福荣 | Detonator type nonpriming material detonator and non-electric detonating system thereof |
| CN104803813A (en) * | 2015-04-21 | 2015-07-29 | 南京理工科技化工有限责任公司 | Allochroic detonating tube with high detonation sensitivity |
| CN110132081A (en) * | 2018-02-09 | 2019-08-16 | 南京理工大学 | A kind of multiple spot NONEL firing network |
-
1986
- 1986-07-12 CN CN 86204836 patent/CN86204836U/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100578136C (en) * | 2007-12-11 | 2010-01-06 | 莫福荣 | Detonator type nonpriming material detonator and non-electric detonating system thereof |
| CN104803813A (en) * | 2015-04-21 | 2015-07-29 | 南京理工科技化工有限责任公司 | Allochroic detonating tube with high detonation sensitivity |
| CN110132081A (en) * | 2018-02-09 | 2019-08-16 | 南京理工大学 | A kind of multiple spot NONEL firing network |
| CN110132081B (en) * | 2018-02-09 | 2021-10-08 | 南京理工大学 | Multipoint non-electric detonation network |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |