CN2771805Y - Anti-radio-frequency electric detonator - Google Patents
Anti-radio-frequency electric detonator Download PDFInfo
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- CN2771805Y CN2771805Y CN 200520078251 CN200520078251U CN2771805Y CN 2771805 Y CN2771805 Y CN 2771805Y CN 200520078251 CN200520078251 CN 200520078251 CN 200520078251 U CN200520078251 U CN 200520078251U CN 2771805 Y CN2771805 Y CN 2771805Y
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Abstract
The utility model relates to a product of the blasting supply class, particularly an electric detonator with radio-frequency resistance. The product comprises a casing, an inserting plug, an ignition end, a detonating explosive and a high explosive. The utility model is characterized in that the inserting plug is composed of a conductive rubber plug, an ignition end and a low-pass filter while the conductive rubber plug, the ignition end and the low-pass filter are connected together; a positioning sleeve is arranged inside the casing; the low-pass filter is composed of two inductors and one capacitor which are electrically connected together. The filter of the product has the insertion loss greater than 20 dB under frequencies which are larger than 50 MHz and smaller than 200 MHz. The electric detonator with radio-frequency resistance has high safety and has the functions of static electricity resistance, radio-frequency resistance and stray-current resistance, so that the electric detonator has the technical proposals which can better satisfy the safety requirements of seismic exploration and engineering blasting.
Description
Technical field
The utility model is the explosive series products, is used for geophysical exploration and engineering explosion, is to the improvement of the safeguard construction of existing electric cap, is specifically related to a kind of preventing RF electric cap.
Background technology
The product of existing seismic prospecting electric detonator practicability has three kinds: a kind of is by the gland that is coated with conductive paint, and electric match, priming, high explosive and copper shell are formed.A kind of is that structure is the same, and just housing adopts the steel flanges shell.The third is that structure is the same, and just gland adopts conductive rubber.The easy breakage of the paint film of the first kind of electric cap static of not releasing, the housing of second kind of electric cap belongs to semiconductor property, and its accumulation of static electricity also is difficult to release, so the explosion accident of these two kinds of electric caps often takes place.Disclosed Chinese patent CN2150209Y patent disclosed a kind of bridge silk and added capacitor in parallel on March 23rd, 1993, and change bridge silk, payment to a porter resistance, make the anti-radio frequency electric cap of the radio-frequency electrical energy shunting consumption of acceptance, though this detonator has solved part preventing RF problem, but preventing RF described in the patent, antistatic performance and anti-stray electrical current performance do not have the index of quantification.Therefore, the safe current index of detonator is indeterminate, still exist to use detonator in potential safety hazard.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, a kind of preventing RF electric cap is provided, and it is safe and reliable, has antistatic, preventing RF, anti-stray electrical current function, make the technical conditions of electric cap can satisfy makers' production, the security needs in seismic prospecting and the engineering explosion better.
The technical solution of the utility model is: design preventing RF electric cap, and it comprises shell, gland, match board head, priming and high explosive composition, it is characterized in that: gland is connected and composed by conductive rubber plug, match board head and low pass filter, and positioning sleeve is arranged in the shell.
Described low pass filter is electrically connected to form by two inductance and an electric capacity, and wave filter is under the 50MHz-200MHz frequency, and it inserts loss greater than 20dB.
Described match board head is compound medicine head, and its outer medicine is potassium chlorate, plumbous rhodanate, adhesive, and the internal layer medicine is neutral lead trinitroresorcinate or alkali formula lead trinitroresorcinate.
Described igniting head is an insensitiveness medicine head.
The beneficial effects of the utility model are; Because the utility model selects for use low pass filter as the preventing RF element, as anti-static component, match board head adopts insensitiveness medicine head or compound medicine head with conductive rubber plug and positioning sleeve.Therefore, the utility model electric cap has antistatic, preventing RF, anti-stray electrical current function, makes electric cap production and uses more safe and reliable.From preventing RF, antistatic, anti-stray electrical current index, general seismic prospecting electric detonator promptly explodes by GJB736.2 " electric spark workpiece radiofrequency sensitivity " test 0.8W.Detonator of the present invention does not explode by above-mentioned code test 10W yet.The seismic prospecting electric detonator that is coated with conductive paint carries out the electrostatic sensitivity test by GJB344-1987 " insensitiveness electric initiator universal design standard ", charge to 25KV with 500Pf electric capacity, circuit series connection 5K Ω resistance, to between electric cap pin shell, discharge, the blasting cap detonation probability is bigger, but it is not quick-fried to use the seismic prospecting electric detonator of conductive rubber to carry out electrostatic sensitivity test 100%.Press GJB152-1997 " military equipment subsystem Electromagnetic Launching and susceptibility are measured " under 100V/m, 200V/m field intensity with the preventing RF electric cap of this wave filter assembling, it is not quick-fried to carry out radio-frequency radiation test, and it is not quick-fried to carry out radio frequency conduction test 50MHz～380MHz with reference to GJB152-1997.The preventing RF seismic prospecting electric detonator is through nearly ten thousand of users' use, and synchronism is good, uses reliable.Preventing RF insensitiveness electric cap uses through surplus 3000 detonator tests and nearly 200 particular surroundings of user, proves detonator antistatic, preventing RF, prevents stray electrical current.
Below in conjunction with the embodiment accompanying drawing the utility model is described further.
Description of drawings
Fig. 1 is the structural representation of embodiment preventing RF electric cap.
1, shell; 2, RDX; 3, priming; 4, strengthening cap; 5, match board head; 6, conductive rubber plug; 7, wave filter; 8, payment to a porter.
The specific embodiment
Embodiment is as shown in Figure 1: it is made up of shell 1, gland, match board head 5, priming 3 and high explosive, and gland is connected and composed by conductive rubber plug 6, match board head 5 and low pass filter 7, in the shell 1 positioning sleeve is arranged.
Pack into melanocyte the present 2 in shell 1 during installation, exerting pressure compresses, and reinstalls priming 3, the strengthening cap 4 of the band silk fabric pad of packing into, and exerting pressure compresses.Get the conductive rubber micelle, the injection machine of packing into, the payment to a porter 8 that wave filter 7 is housed is sequenced in mould, on vertical injection molding machine, annotate plug then, annotate payment to a porter behind the plug bridge silk of burn-oning, get the fire tube that installs explosive, insulation sleeve is tightened and put to the tight mouth of gland of packing into then and being with match board head 5 with payment to a porter afterbody heart yearn.The utility model preventing RF electric cap, shell can be made by metal materials such as copper, steel.Its explosive can be with hexogen or HMX.Its priming can be used the DS co-precipitation, primings such as DDNP, GTG, nickel hydrazine nitrate.
By the utility model detonator of above-mentioned technology making, carried out three qualification tests of criticizing by GB2828 " by batch inspection counting sample program and sampling table ", its test result sees Table 3.
Table 3
| Project | Sample size | Project | Sample size | Testing result |
| Outward appearance | 125 | Stereotype | 128 | All qualified |
| Size | 125 | Quiet pulling force | 80 | |
| Resistance | 125 | Electrostatic sensitive | 80 | |
| Insulaion resistance | 125 | Immersion | 80 | |
| Vibratory test | 80 | Action time | 80 | |
| Safe current | 80 | Radiofrequency sensitivity | 20 | |
| The series connection safe firing current | 128 | Stray electrical current | 20 | |
| Remarks | Sample size 3201-10000 sends out/criticizes sampling | |||
Table 1 insulaion resistance, electrostatic sensitivity test are pressed GJB344-87 " insensitiveness electric initiator universal design standard " and are carried out, the radiofrequency sensitivity test is pressed GJB736.2 " electric spark workpiece radiofrequency sensitivity " and is carried out, the stray electrical current test is pressed GJB736.12-90 " test of electric spark workpiece anti-stray current " and is carried out, and all the other pilot projects are pressed GB8031-1987 " commercial electric detonator " and carried out.
Claims (4)
1, preventing RF electric cap, it comprises shell, gland, match board head, priming and high explosive composition, it is characterized in that: gland is connected and composed by conductive rubber plug, match board head and low pass filter, and positioning sleeve is arranged in the shell.
2, preventing RF electric cap according to claim 1 is characterized in that: described low pass filter, be electrically connected to form by two inductance and an electric capacity, and its wave filter is under the 50MHz-200MHz frequency, and it inserts loss greater than 20dB.
3, preventing RF electric cap according to claim 1 is characterized in that: described match board head is compound medicine head, and its outer medicine is potassium chlorate, plumbous rhodanate, adhesive, and the internal layer medicine is neutral lead trinitroresorcinate or alkali formula lead trinitroresorcinate.
4, preventing RF electric cap according to claim 1 is characterized in that: described match board head is an insensitiveness medicine head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520078251 CN2771805Y (en) | 2005-01-12 | 2005-01-12 | Anti-radio-frequency electric detonator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520078251 CN2771805Y (en) | 2005-01-12 | 2005-01-12 | Anti-radio-frequency electric detonator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2771805Y true CN2771805Y (en) | 2006-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520078251 Expired - Lifetime CN2771805Y (en) | 2005-01-12 | 2005-01-12 | Anti-radio-frequency electric detonator |
Country Status (1)
| Country | Link |
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| CN (1) | CN2771805Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104447149A (en) * | 2014-12-10 | 2015-03-25 | 山东圣世达化工有限责任公司 | Coal mine permitted industrial electric detonator |
| CN105423830A (en) * | 2015-12-25 | 2016-03-23 | 安徽理工大学 | Delay electric detonator free of delay powder |
| CN111233590A (en) * | 2020-03-03 | 2020-06-05 | 四川省宜宾威力化工有限责任公司 | Ignition powder head of electronic detonator and preparation method thereof |
| WO2023057670A1 (en) * | 2021-10-04 | 2023-04-13 | Eduardo Perez Calle | Electronic ignition device for pyrotechnical elements |
-
2005
- 2005-01-12 CN CN 200520078251 patent/CN2771805Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104447149A (en) * | 2014-12-10 | 2015-03-25 | 山东圣世达化工有限责任公司 | Coal mine permitted industrial electric detonator |
| CN105423830A (en) * | 2015-12-25 | 2016-03-23 | 安徽理工大学 | Delay electric detonator free of delay powder |
| CN105423830B (en) * | 2015-12-25 | 2018-03-13 | 安徽理工大学 | A kind of delay electric detonator of no delay medicine |
| CN111233590A (en) * | 2020-03-03 | 2020-06-05 | 四川省宜宾威力化工有限责任公司 | Ignition powder head of electronic detonator and preparation method thereof |
| CN111233590B (en) * | 2020-03-03 | 2021-10-29 | 四川省宜宾威力化工有限责任公司 | Ignition powder head of electronic detonator and preparation method thereof |
| WO2023057670A1 (en) * | 2021-10-04 | 2023-04-13 | Eduardo Perez Calle | Electronic ignition device for pyrotechnical elements |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 710025 No. 1 Tian King Street, Baqiao District, Shaanxi, Xi'an Patentee after: Xian Qinghua Civil Explosives Co., Ltd. Address before: 710025 No. 1 Tian King Street, Baqiao District, Shaanxi, Xi'an Patentee before: Xi'an Qinghua Civil Explosive Equipment Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150112 Granted publication date: 20060412 |