The Research Of Railway Ballast Produce System Of Lulong Quarry

Tianjin railroad branch office Lu long quarry is a new extended factory to produce railway ballast. Technical process and equipments can't produce efficiently, the cost of production is high and the finished product rate is low, so this paper optimizes the technological production norm. By systemically analyzing the technical process including the blast, crushing, related punching, packing and conveying in order to find out its objective regularity, define its reasonable technological production norms. Finally the results are to low the production cost, increase economic performance and finished product rate.According to the Lu long quarry the actual circumstance of producing with theory, making use of the regression analysis and mathematical theory of statistics, This paper investigates synthetic system Lu long quarry, and establish the model of the consumption of dynamite and the massive rate of explosive; The model of the massive rate and the efficiency of shovel loading; The model of the massive rate and the efficiency of transportation; The model of the average lumpiness and crushing cost; The average lumpiness and the rate of finished products. Finally, establish the model of the produce system synthetic optimization. This is the decision model of many targets, and it request that the production cost is the lowest; the finished product rate is the best. From above this paper get the manufacturing parameter under the superior appearance, including the massive rate, hole girding burden area, the consumption of dynamite, the average lumpiness. Finally, this paper gets the optimal manufacturing parameters.The optimal technological production norms: the optimal hole girding burden area is 21 m2 the consumption of dynamite is 0.662 kg? m3, the massive rate is 6%, the optimal unit production costs is 16.04 yuan? m3, the finished product rate is 77.28%, the average lumpiness is 311. And so the finished product rate is increased 9.57%, the unit production cost is lowered 15.3%, the economic performance is increased 178.97 ten thousand yuan. Based on systematic engineering, some technical processes such as the blast, crushing, punching, packing and conveying are regarded as entirety to optimize system, to reduce the massive rate by increasing the consumption of dynamite, which proofs the viewpoint of energy forward leading. The result shows that the cost production is reduced, finished product rate and the labor productivity is greatly increased. The economic benefit of quarry is improved. The paper is practically significant for reducing the cost of production, increasing finished product rate and improving the economic benefits of mine.