Permissible detonating cord for coal mine, and cord maker thereof
A detonating cord and coal mine technology, applied in the direction of detonating cord, fuse manufacturing, etc., can solve the problems of gas explosion, low flame-extinguishing dose, hidden dangers of coal mine safety production, etc., and achieve the effect of reducing mechanical sensitivity
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0014] A detonating cord permitted for coal mines, comprising a drug core 2 and a core wire 1, the number of the core wires 1 is four, the drug core 2 is a mixed explosive, and the formula weight ratio of the drug core 2 is: PETN Or RDX is 93%-97%, chlorinated paraffin 70 is 3%-7%, the particle size of the drug core 2 is 22 mesh to 60 mesh, and the charge amount of the drug core 2 is 11g / m~13 g / m; the drug core 2 is covered with a polypropylene film 3, the polypropylene film 3 is 15mm-22mm wide and 0.05-0.10mm thick; the polypropylene film 3 is covered with an inner chemical fiber 4. There is a flame suppressant layer 5 outside the inner chemical fiber 4, and the flame suppressant layer 5 is formed by concentrically wrapping the drug core with the flame suppressant B, and the formula weight ratio of the flame suppressant B is: alkali metal 60% to 80% of halides, 20% to 40% of halogenated hydrocarbons, particle size of 22 mesh to 60 mesh; then wrap and fix the flame suppressa...
PUM
Property | Measurement | Unit |
---|---|---|
thickness | aaaaa | aaaaa |
particle size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com