Low-energy detonating cord detonating system
Through the combination of low-energy detonation cable member and relay tube, the existing detonation equipment is easily affected by moisture and high cost, and a safe and economical blasting effect is achieved, and it is adapted to multiple environmental conditions.
Patent Information
- Application Number
- CN202422335100.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-24
AI Technical Summary
Existing detonating equipment is prone to moisture, has unstable blasting effect, and is costly, so market demand increases attention to low-energy blasting cables.
Low-energy detonation cable components are used, including shells, low-energy detonation cables, detonation cables and ignition parts. Combined with the relay tube, the detonation time is controlled through electronic ignition parts, the amount of the drug core is reduced, and the colloidal Taian explosive is used with good water resistance to prolong the explosion time.
It achieves a safe and reliable blasting effect, reduces costs, and maintains blasting effect, adapts to high-temperature and low-temperature environments, and has significant social and economic benefits.
Smart Images
Figure CN223122073U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the fields of tunnel blasting technology and blasting equipment, and specifically to a low-energy detonating cord initiation system. Background Technique
[0002] With the development of engineering blasting technology, low-energy blasting cords have attracted more and more attention, and the market demand has gradually increased. The existing initiators have a single initiation form, and at the same time, the initiating explosive is prone to moisture absorption, so the expected blasting effect cannot be achieved. Compared with these initiating devices, the low-energy detonating cord has the advantages of good water resistance, high and stable detonation velocity, blasting safety, and resistance to high and low temperatures. Content of the Utility Model
[0003] The purpose of the utility model is to provide a safe and cost-saving low-energy detonating cord initiation system.
[0004] To achieve the above purpose, the utility model provides the following technical solutions:
[0005] The low-energy detonating cord initiation system includes a low-energy detonating cord component, a detonating relay and an explosive package. The low-energy detonating cord component includes a tube shell, a low-energy detonating cord, a detonating cord and an ignition element. The detonating cord is connected between the ignition element and the low-energy detonating cord. The ignition element is arranged at one end of the tube shell, and the other end is connected to the detonating relay.
[0006] Further, the length of the low-energy detonating cord is 70% - 80% of the length of the tube shell, and the tube shell is coated with polyethylene resin.
[0007] Further, the low-energy detonating cord includes an outer shell of the low-energy detonating cord and a low-energy detonating cord core. The low-energy detonating cord core uses gelatinous penthrite explosive, and the outer shell of the low-energy detonating cord is wrapped with cotton thread and polypropylene flat filaments in layers.
[0008] Further, the detonating cord includes an outer shell of the detonating cord and a detonating cord core. The material of the outer shell of the detonating cord is lead-antimony alloy material, and the core of the detonating cord uses amine perchlorate eutectic salt.
[0009] Further, the ignition element is an electronic ignition element, including an outer shell of the ignition element and an ignition head of the ignition element.
[0010] Further, the detonating relay includes a shock-absorbing tube, a strengthening cap, delay charge, initiating explosive and an outer shell of the detonating relay. One end of the detonating relay is connected to the low-energy detonating cord component, playing the role of extending the detonation transmission time and relay detonation transmission.
[0011] The beneficial effects of the utility model are as follows:
[0012] The initiating ability of the low-energy detonating cord is relatively low, which can overcome some drawbacks of ordinary detonating cords in open-pit blasting projects. The composition of the core of the low-energy detonating cord is gelatinous penthrite explosive. The core has good water resistance. When the two ends of the low-energy detonating cord are exposed and immersed in deep water, the detonation velocity remains unchanged. It has good high-temperature resistance. When it is at a temperature of 40° - 80° for a long time, the detonation velocity is stable and the blasting is complete. Its detonation velocity is 7000 - 7400 m / s. It has good safety performance. The charge amount of the core is reduced, and its cost is lower than that of ordinary detonating cords. The blasting effect obtained in the blasting project is almost the same as that of ordinary detonating cords. It has good practicability and great promotion value, bringing significant social and economic benefits to the society. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the implementation technical cases of the present utility model, the following briefly introduces the drawings required for the description of the utility model.
[0014] Figure 1 It is a schematic diagram of a low-energy detonating cord initiating system;
[0015] Figure 2 It is a schematic diagram of a relay detonator;
[0016] Figure 3 It is a three-dimensional schematic diagram of a low-energy detonating cord component;
[0017] Figure 4 It is a structural schematic diagram of a low-energy detonating cord component;
[0018] In the figure, 01 - low-energy detonating cord component, 02 - relay detonator, 03 - explosive package, 1 - tube shell, 2 - low-energy detonating cord, 3 - initiating cord, 4 - ignition element, 5 - low-energy detonating cord component, 6 - shock-absorbing tube, 7 - delay charge, 8 - reinforcing cap, 9 - primary explosive, 10 - relay detonator outer shell, 201 - low-energy detonating cord outer shell, 202 - low-energy detonating cord core, 301 - initiating cord outer shell, 302 - initiating cord core, 401 - ignition element outer shell, 402 - ignition element primer DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0019] The following further illustrates the present utility model with reference to the drawings:
[0020] Refer to Figures 1-4 , the ignition element 4 is an electronic ignition element. A timing module is arranged inside the electronic ignition element. The detonation time is set according to the target distance and detonated through the timing module, or the low-energy detonating cord 02 is detonated by means of remote control. The shock wave and high-temperature gas generated by the explosion and detonation of the low-energy detonating cord pass through the shock-absorbing tube 6 to reduce the pressure and temperature so that it cannot be penetrated to ignite the delay charge 7. The delay charge 7 ignites the primary explosive 9 after a time interval of several milliseconds. The latter then detonates the low-energy detonating cord component at the other end, and finally ignites the explosive package 03.
[0021] The low-energy detonating cord component 02 includes a casing 1, a low-energy detonating cord 2, a detonating cord 3, and an ignition component 4. The detonating cord 3 is connected between the ignition component 4 and the low-energy detonating cord 2. The ignition component 4 is arranged at one end of the casing 1. The length of the low-energy detonating cord 2 is 70% - 80% of the length of the casing. The casing 1 is coated with polyethylene resin.
[0022] The low-energy detonating cord 2 includes an outer casing 201 of the low-energy detonating cord and a core 202 of the low-energy detonating cord. The outer casing 201 of the low-energy detonating cord is wrapped in layers with cotton threads and polypropylene flat filaments. The core 202 of the low-energy detonating cord uses gelatinous penthrite explosive.
[0023] The detonating cord 3 includes an outer casing 301 of the detonating cord and a core 302 of the detonating cord. The core 302 of the detonating cord is an amine perchlorate eutectic salt. The material of the outer casing 301 of the detonating cord is lead-antimony alloy material.
[0024] The utility model uses the combination of the detonating cord 3 and the ignition component 4 to replace the detonating cap, reducing the risk and improving the safety. At the same time, a delay detonator is connected into the low-energy detonating cord detonation network, playing the role of extending the detonation time and relaying the detonation.
[0025] The above are all the preferred examples of the utility model and are not used to limit the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the utility model shall be included within the scope of the utility model.
Claims
1. A low-energy detonating cord initiation system, characterized in that: It includes a low-energy detonating cord component (01), a detonator relay (02), and an explosive package (03). The low-energy detonating cord component (01) includes a casing (1), a low-energy detonating cord (2), a priming cord (3), and an ignition component (4). The ignition component (4) is arranged at one end of the casing (1), and the priming cord (3) is connected between the ignition component (4) and the low-energy detonating cord (2). The detonator relay (02) includes a shock-absorbing tube (6), delay charge (7), an intensifying cap (8), primary explosive (9), and a detonator relay outer casing (10). One end of the detonator relay (02) is connected to the low-energy detonating cord component (01).
2. The low-energy detonating cord initiation system according to claim 1, characterized in that: The length of the low-energy detonating cord (2) is 70% - 80% of the length of the casing (1), and the casing (1) is coated with polyethylene resin.
3. A low-energy detonating cord initiation system according to claim 1, characterized in that: The low-energy detonating cord (2) includes an outer casing (201) of the low-energy detonating cord and a core (202) of the low-energy detonating cord. The outer casing (201) of the low-energy detonating cord is wrapped in layers with cotton thread and polypropylene flat filaments, and the core (202) of the low-energy detonating cord uses gelatinous penthrite explosive.
4. A low-energy detonating cord initiation system according to claim 1, characterized in that: The priming cord (3) includes an outer casing (301) of the priming cord and a core (302) of the priming cord. The core (302) of the priming cord is an amine perchlorate eutectic salt, and the material of the outer casing (301) of the priming cord is lead-antimony alloy material.
5. A low-energy detonating cord initiation system according to claim 1, characterized in that: The ignition component (4) is an electronic ignition component, which is composed of an ignition component outer casing (401) and an ignition component primer (402).