High Precision Detonating Tube Detonator Compared With Digital Electronic Detonator Application Research

By hole blasting technique is at the heart of the reasonable hole between the differential between the time,but in theory a reasonable differential time needs to have high accuracy time delay detonator,it is also a important research topic scholars both at home and abroad.At present domestic market of detonator in two,made up of detonating tube detonator and electric detonator,and detonating tube detonator occupied most of market share.This article selects the best performance both high precision and digital electronic detonator detonating tube detonator compares application research,from the security index,engineering quality index,economic indicators summed up in three aspects:the contrast both advantages and disadvantages.First of all,safety indicators,from the internal structure and characteristics analysis their safety performance.Since the advent of detonating tube detonator will win acclaim from the market by its unique safety performance,the stability and security of the non-electric detonating network those of electric blasting network.However,digital electronic detonator with "double signal" detonation characteristics,successfully overcome the ordinary electric detonator is limited by interfering with environmental concerns.In terms of engineering quality indicators,with some tantalum-niobium mine of jiangxi province blasting site,for example,using ANSYS/LS-DYNA analysis software to simulate and verify the differential time and hole network parameters were optimized to reduce blasting vibration.Then using digital electronic detonator and high-precision detonating tube detonator explosion in adjacent areas do the contrast test,analysis of blasting effect.The rate of blasting chunk is using software analysis methods such as contrast,crushing evenness index.A total of five times test,in which the secondary detonating tube detonator with high precision,digital electronic detonator three times,and successive adjustment optimization design,in order to tend to the optimal blasting effect.After field data obtained,with PowerSieve(?)level of granular analysis software for blasting effect analysis of the data,do the same detonator between transverse and longitudinal comparison between different detonator,the fourth to do the contrast between the different sections with time.Second,three digital electronic detonator blasting for the adjacent zone and high precision detonating tube detonator test,on the broken evenness second than the third secondary uniform,large rate is less.Fourth,five blasting with digital electronic detonator test,evenness were similar,but the block rate is obviously better than the fourth fifth.Comprehensive four blasting effect comparison,for the fourth time effect is superior to other three times.For this,take the fourth time blasting internal three section to do the secondary analysis,conclusion,large pieces of lowest rates,the average lumpiness also lowest,ruled out the surface phenomenon of causal factors.The last economic indicators,combined with the blasting quality and efficiency,compare the perforated cost,blasting,shovel loading costs,transportation costs,crushing costs.The calculation of both unit cost and total cost as a result,digital electronic detonator have certain advantages but not obvious.Combined with the actual situation of mine large rate is extremely serious,reach test target,also provide the support for the later mine blasting operation.