MTW European Type Trapezium Mill
Input size:30-50mm
Capacity: 3-50t/h
LM Vertical Roller Mill
Input size:38-65mm
Capacity: 13-70t/h
Raymond Mill
Input size:20-30mm
Capacity: 0.8-9.5t/h
Sand powder vertical mill
Input size:30-55mm
Capacity: 30-900t/h
LUM series superfine vertical roller grinding mill
Input size:10-20mm
Capacity: 5-18t/h
MW Micro Powder Mill
Input size:≤20mm
Capacity: 0.5-12t/h
LM Vertical Slag Mill
Input size:38-65mm
Capacity: 7-100t/h
LM Vertical Coal Mill
Input size:≤50mm
Capacity: 5-100t/h
TGM Trapezium Mill
Input size:25-40mm
Capacity: 3-36t/h
MB5X Pendulum Roller Grinding Mill
Input size:25-55mm
Capacity: 4-100t/h
Straight-Through Centrifugal Mill
Input size:30-40mm
Capacity: 15-45t/h
Analysis of the reasons for the large vibration of blast furnace mill
Research articleAnalysis of blasting vibration duration considering
2024年6月30日 In this study, the blasting vibration duration prediction formula uses frequency and energy as independent parameters, which are analysed using a statistical t probability distributionIn this paper, by analyzing the main influencing factors of the dominant frequency, an attenuation equation of the dominant frequency induced by blasting vibration has been proposed by Analysis of the Main Factors Influencing the Dominant Frequency Therefore, this present article proposes an improvement of the estimation in the magnitude of the vibrations resulting from rock blasting methodologies in the surrounding areas, incorporating A New Blast Vibrations Analysis Methodology2019年3月12日 In this paper, by analyzing the main influencing factors of the dominant frequency, an attenuation equation of the dominant frequency induced by blasting vibration Analysis of the Main Factors Influencing the Dominant Frequency
Safety Evaluation and Application of Blasting Vibration Based on
2023年2月28日 Sciencebased and accurate means for the evaluation of vibration caused by blasting are important for controlling hazards associated with blasting This paper proposes a 2020年7月1日 Ground vibration is one of serious environmental problems and need to be accurately predicted Relevant parameters have an impact on blasting vibration were Review of predicting the blastinduced ground vibrations to 2024年11月1日 This paper presents an analysis of blasting vibration signals in the ramp entrance section of the Beishan URL, resulting in the acquisition of the distribution Analysis of blasting vibration responses in the ramp section of the 2011年12月1日 Modal anal ysis determines the dynamic characteristics of blast furnace shell, includes th e natural frequency, vibration mode and steady r esponse The finite element Dynamics Characteristics of Blast Furnace Shell ResearchGate
Analysis of Causes of Vibration Differences Induced by Different
2023年7月13日 In this study, taking the excavation of a dam foundation as a case study, the inherent causes of vibration differences induced by presplitting blastholes, smooth blastholes, Seismic vibration analysis was made on two and threedimensional models of the No 4 blast furnace at the Kimitsu Works of Nippon Steel Corporation, using the seismic waves that had The Earthquakeresistant Design of Blast Furnace on the Basis of 2019年6月29日 With the broad application of dry dedusting of blast furnace gas (BFG), the issue of BFG pipeline corrosion comes up because of chlorine in the BFGChlorine corrosion of blast furnace gas pipelines: Shock and Vibration Volume 2018, Issue 1 Research Article To obtain optimal mesh sizes for further largescale numerical simulations of blast wave interactions with overpasses, purpose of further clarifying the influence of air mesh size on simulation results and enabling further development of blast loading analysisAnalysis of Blast Wave Parameters Depending on Air Mesh Size
Statistical analysis of blastinduced vibration near an open pit
2023年8月14日 Regression analysis was applied to develop prediction equations for the estimation of blast induced ground vibration Validation analysis of the proposed equations was performed using test blastsThe blast furnace (BF) is the most energyconsuming and important reactor in ironmaking industries at present (ie, conventional BFs) and in the near term (ie, novel BFs) [1]In the BF process, iron ore and coke are loaded alternately at the furnace top, and hot blast is introduced into the lower part of the furnace along the circumference through the tuyeres, generating the How blast rate variation affects dynamic infurnace behaviours technical structures [6] The blast furnace lining, on the one hand, is affected by the hydrodynamic noise of the cooling system, and on the other, by the sound pressure of the aerodynamic noise of the blast air, which may be one of the probable technical DETERMINING THE NATURAL VIBRATION FREQUENCIES OF 2021年8月16日 The occurrence of abnormal vibration indicates that there may be problems with the machine, which will greatly reduce the production efficiency of the jaw crusher, damage the components and reduce the service life So what is the reason for the large vibration amplitude of the hammer crusher? 1 Whether the foundation is horizontalWhat Are The Reasons for The Large Vibration Amplitude of Hammer
Analysis of predictor equations for determining the blastinduced
2019年12月1日 The classic Eq (2) would appear, on average, less unreliable than others; the unreliability of extrapolation over long distances, however, is of little weight in some cases (ie tunnel excavation, where relatively small charges per delay are used, that at distances of around 100 m give a disturbance almost always tolerable) More serious is the defect, common to all 2024年11月9日 Under the global dualcarbon background, heightened public awareness of climate change and strengthened carbon taxation policies are increasing pressure on the steel industry to transition Given the urgent need for carbon reduction, the exploration of lowcarbon pathways in a blast furnace (BF) metallurgy emerges as crucial Evaluating both asset Analysis of Technological Pathways and Development 2019年3月21日 In this work, the effects of replacing the aggregates of selfcompacting concrete by aircooled blast furnace slag have been analysed Different mixes have been manufactured by substituting the fine and coarse natural aggregates by aircooled blast furnace slag The fracture energy and the tensile and compressive strength have been determined for each mix The self Analysis of the Utilization of AirCooled Blast Furnace Slag as2021年1月1日 Stemming is an essential blast design parameter, and inadequate stemming length/materials impact directly, among others, rock fragmentation, backbreak, flyrock, and ground vibrationThe influence of stemming practice on ground vibration and air blast
Frequency comparison of blastinduced vibration per delay for
2016年1月1日 Rock fragmentation by drilling and blasting is widely used in mining, quarrying and civil engineering constructions However, only 20–30% of the energy released during explosion is utilized directly for rock breakage, while the rest of the energy is dissipated in the form of ground vibrations, air blasts, flying rocks and noises (Hagan, 1977, Trivedi et al, 2014)2021年10月20日 To illustrate, a typical relining of 3 months for a large blast furnace (4 Mtpa again it is important to note that all these figures refer only to investments and reinvestments in the blast furnace, not the steel mill as a A sensitivity analysis for both the 85% capacity utilization threshold and for future steel demand Phasing out the blast furnace to meet global climate targets2019年7月2日 Iron and steel making is one of the most intense energy consuming in the industrial sectors The intensive utilization of fossil carbon in the ironmaking blast furnace (BF) is related directly to Modern blast furnace ironmaking technology: Furthermore, data pertaining to the blast furnace operation are not limited only to the basic operation data such as that of the blast condition and charging method, but data are obtained in a great quantity from various sensors installed on the blast furnace (Fig 11)) However, a blast furnace is a high temperature, high pressureDevelopment of Blast Furnace Operation Data Visualization and Analysis
Mathematical Modelling of the Ironmaking Blast Furnace
2023年3月31日 The results showed that under no thermal compensation, the heat loss of the whole blast furnace increases, which means the heat surplus of the whole furnace is sufficient However, the heat in the hightemperature zone of the blast furnace is insufficient, showing the characteristics of “cold at bottom and hot at the top”2023年12月1日 The corrosion failure of blast furnace gas pipeline made of Q235 carbon steel in a steel plant was investigated Macro and micro morphology, thickness loss rate and phase composition of rust layer have been comprehensively studiedThe macro and micro morphology of failed tube in service for 35 years were observed by laser scanning confocal microscope Comprehensive analysis of corrosion failure of blast furnace gas Figure 1 shows the outline of a blast furnace, where the coke and the iron ore are loaded from the top of the furnace, and the hot metal and its viscous byproduct, ie the slag, are drained from the tap holes at the bottom Control of hot metal temperature (HMT) is important to realize an efficient and stable operation of the blast furnacePractical Operation Guidance on Thermal Control of Blast Furnace 2016年3月1日 Blastinduced vibration produces a very complex signal, and it is very important to work out environmental problems induced by blasting In this study, blasting vibration signals were measured (PDF) Application of coupled analysis methods for prediction of blast
(PDF) Investigations on the attenuation characteristics of blast
PDF On Jan 1, 2016, VMSR Murthy and others published Investigations on the attenuation characteristics of blastinduced ground vibrations for developing controlled blast design Find, read Using a mathematical model of countercurrent flow in a blast furnace to evaluate reducibility of ironorebearing raw materials Steel Res Int 2015, 86, 320–328 [Google Scholar] Shatokha, V Modeling of the effect of hydrogen injection on blast furnace operation and carbon dioxide emissions Int J Miner MetallPrediction of the Consumption of Raw Materials and Fuels for the Blast 2021年2月20日 A Blower in a Blast Furnace provides cold blast at the desired flow and pressure for utilization at the hot blast stoves The hot air is required to burn the coke in the furnace Therefore, the reliability and availability of Blower are of utmost importance for the iron making process in Blast Furnace (Figs 1 and 2)IoTBased Solution to Frequent Tripping of Main Blower of Blast Furnace 2017年2月15日 Blasting in opencast mines is characterized by the use of large masses of explosives for a single blast Blasting is done in a series of several to tens or even hundreds of charges placed in long holes and fired with a millisecond delay Works are often carried out in the vicinity of buildings; therefore, reducing vibration impact is essential for opencast minesAnalysis of the blastinduced vibration structure in open Extrica
Analysis of flow and heat transfer characteristics of blast furnace
where Q cond is the heat dissipation; Q rad is the radiation heat loss; A conv is the area of convective heat transfer; T∞ is the ambient temperature Q total is the total heat load, the formula is Q total = mcDT (7) The formula for the convection heat transfer coefficient can be changed to h conv = mcDT −hFigure 2: Typical example of blastinduced ground vibration analysis, with the measured vertical, radial, and transverse time histories, and the results presented on the DIN 41503 ZCurve (right) 22 TimeFrequency Analysis Methods This section discusses two timefrequency analysis methods to improve the analysis of blastinIMPROVED BLAST VIBRATION ANALYSIS USING THE WAVELET 2020年9月16日 713 Reasonable Pursuit and Practical Operation In a 1036 m 3 blast furnace in a factory, the night shift foreman did not deal with a 35 m slip and quickly charged burden to catch up the stock line and was anxious to maintain the charges to meet the requirement of administration The foreman also did not charge coke blank for the deeply slipped stock line, Basic Operation of Blast Furnace SpringerLink2017年2月15日 In openpit mines, the blast operation should be effectively optimized, leading to minimization of production costs through the application of specific technical specificationsAnalysis of the blastinduced vibration structure in opencast
Review and Analysis of Metallurgical Processes in Blast Furnace
2022年1月7日 Considerable efforts have been made in the academia, industry and RD to investigate metallurgical processes in blast furnace main trough (BFT) and trough performances In these, while the emphasis in industrial research has been primarily on the mechanism of BFT refractory degradation as well as the development of highperformance refractory formulations, KEY WORDS: Blast vibration, Underground mine, Dimensional analysis, Conventional predictors INTRODUCTION Several mining companies encounter blastinduced ground vibration problems in the form of both social and environmental impacts on nearby residential areas Blasting is an essential fragmentation and displacement process of rock to enable Evaluation and Assessment of BlastInduced Ground Vibrations in 2016年3月1日 In the recent decades, effects of blast loads on natural and manmade structures have gained considerable attention due to increase in threat from various manmade activitiesDetermination of blast induced ground vibration equations for 2024年3月22日 The CFD/DEM approach was used for investigating the forces playing a role in a furnace raceway formation and stability The configuration is an actual pilotscale hot blast furnace filled only with coke particles In such a system, the raceway was unstable, with successively a growing phase and a collapse The CFD/DEM numerical simulations were coupled with a core Mechanical Analysis of the Forces Involved in a PilotScale Blast
Chlorine corrosion of blast furnace gas pipelines:
2019年6月29日 With the broad application of dry dedusting of blast furnace gas (BFG), the issue of BFG pipeline corrosion comes up because of chlorine in the BFGShock and Vibration Volume 2018, Issue 1 Research Article To obtain optimal mesh sizes for further largescale numerical simulations of blast wave interactions with overpasses, purpose of further clarifying the influence of air mesh size on simulation results and enabling further development of blast loading analysisAnalysis of Blast Wave Parameters Depending on Air Mesh Size2023年8月14日 Regression analysis was applied to develop prediction equations for the estimation of blast induced ground vibration Validation analysis of the proposed equations was performed using test blastsStatistical analysis of blastinduced vibration near an open pit The blast furnace (BF) is the most energyconsuming and important reactor in ironmaking industries at present (ie, conventional BFs) and in the near term (ie, novel BFs) [1]In the BF process, iron ore and coke are loaded alternately at the furnace top, and hot blast is introduced into the lower part of the furnace along the circumference through the tuyeres, generating the How blast rate variation affects dynamic infurnace behaviours
DETERMINING THE NATURAL VIBRATION FREQUENCIES OF
technical structures [6] The blast furnace lining, on the one hand, is affected by the hydrodynamic noise of the cooling system, and on the other, by the sound pressure of the aerodynamic noise of the blast air, which may be one of the probable technical 2021年8月16日 The occurrence of abnormal vibration indicates that there may be problems with the machine, which will greatly reduce the production efficiency of the jaw crusher, damage the components and reduce the service life So what is the reason for the large vibration amplitude of the hammer crusher? 1 Whether the foundation is horizontalWhat Are The Reasons for The Large Vibration Amplitude of Hammer 2019年12月1日 The classic Eq (2) would appear, on average, less unreliable than others; the unreliability of extrapolation over long distances, however, is of little weight in some cases (ie tunnel excavation, where relatively small charges per delay are used, that at distances of around 100 m give a disturbance almost always tolerable) More serious is the defect, common to all Analysis of predictor equations for determining the blastinduced 2024年11月9日 Under the global dualcarbon background, heightened public awareness of climate change and strengthened carbon taxation policies are increasing pressure on the steel industry to transition Given the urgent need for carbon reduction, the exploration of lowcarbon pathways in a blast furnace (BF) metallurgy emerges as crucial Evaluating both asset Analysis of Technological Pathways and Development
Analysis of the Utilization of AirCooled Blast Furnace Slag as
2019年3月21日 In this work, the effects of replacing the aggregates of selfcompacting concrete by aircooled blast furnace slag have been analysed Different mixes have been manufactured by substituting the fine and coarse natural aggregates by aircooled blast furnace slag The fracture energy and the tensile and compressive strength have been determined for each mix The self 2021年1月1日 Stemming is an essential blast design parameter, and inadequate stemming length/materials impact directly, among others, rock fragmentation, backbreak, flyrock, and ground vibrationThe influence of stemming practice on ground vibration and air blast