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Method of ore mining Explosive Situation Analysis and Improvement using


In gently inclined thin ore body of ore in the deep hole test blasting power, breaking the previous use of explosive force of the conditions of ore, which marks the explosive power of our method of ore mining and upgraded to a new level, but also for our country The explosive force of the use of ore method provides a new world. Explosive Although the use of ore in a number of flaws, but the tilt in the thick of the ore body for mining to be effective. To give full play to the role of the law should make the following improvements. 1,[link widoczny dla zalogowanych], ore mining conditions in appropriate circumstances, and the steep angle, try to phase out the use of the explosive force of ore mining method. Practice shows that the explosive force of subparagraph a pillar of ore with a lateral pillar sublevel caving mining method compared to the explosive force of ore for a short distance while blasting power, but because of the complexity of drilling technology, travel work extremely inconvenient, and mining large cut, the overall effect as the mining sub-lateral caving method. In the stage of the mine, the use of the same explosive force of ore process, although the explosive force far distance, but in the tilt in the thick of the ore block conditions, the strength of the ore,[link widoczny dla zalogowanych], the loss of depleted indicators are other mining methods can not match, with great advantages 2. Is to determine the Hole Drilling Method for Explosive application of ore the main issues, developed a set of efficient and suitable for deep hole drilling deviated drilling units, such as tanks and hydraulic rock climbing combination unit with a controlled device can be automatically simulated drill hole inclination, azimuth, depth, and hole location, orientation, opening, according to Rod, stop drilling, unloading rod and the control of the whole process of conversion units. Foreign mining has begun to use similar devices to achieve better results. 3. Development of high-explosive, low fierce, low cost of the special explosives Explosive increase of ore Explosive important measures of ore trip. To maximize the effect of blasting power of ore, should be high-explosive, low brisance explosives. Transport ore from the domestic use of explosive force of explosives of view, as the 1995 photo; Xinjiang is a l-colored base of / spodumene ore beneficiation process recovery and poor quality of the regression analysis, C 【(Xinjiang Nonferrous Metals Company Ulu not Qi .830000) hF Abstract According to Al-millet mineral processing plant Kelu patients who choose poor pyroxene r boring stone production data, using regression analysis, the establishment of the small laugh pyroxene poor grade of ore dressing process clock recovery and multiple linear regression Wow, hang-type mathematical discussion of the demand model, the small spines were reported mineral production and control keywords. Things to send. Yang - a - ~ ... f1 /,[link widoczny dla zalogowanych],, uJ,, fI '/ The established grade of mineral processing recovery and multiple linear regression model,[link widoczny dla zalogowanych], found a description of the recovery and grade of mineral processing mathematical expression between the type, in order to forecast and control of mineral production of the main factors in order to achieve greater technical indicators, increase economic efficiency. First, the beneficiation process outlined Kelu wood processing plant is selected lithium oxide content of <l spodumene ore processing plant poor. In addition to recovery of spodumene, but also recall the principles of tantalum and niobium mineral election process and its technology Lithium conditions shown in Figure l. Select lithium technical indicators, the original mineral, changes in the number and grade of ore was selected in Table l, 2 and prince Yu 2. Data on the chart, select plant l983 ~ 1991 was elected to the average ore grade 0.92LI20. The highest grade average for the 0.98Li0; lowest 0.79Li. 0. It is noteworthy that, from l991 onwards, selected ore grades decline can be expected, with the increase of mining depth, the ore grade will become the poor selection, resulting in sorting difficult. Therefore, to continuously improve the beneficiation process, strengthen the resource into effect, pupil enterprises gain, is imperative. With quantity, cost and other reasons. General mining explosives are used, because of this fierce degree of explosives, on the roof and have an impact on the stope, and the result is not throwing very good especially for long distance stage of the stope, the use of special high-explosive, low- brisance explosives, can greatly improve the throwing effect. 4. Improve the charging structure, improve the blasting effect. Heavy or moderate dip of ore body mining conditions, can be set blasting hole and throwing hole in two parts. Cast encryption hole, interval charge and other ways to strengthen the explosive force of throw, improve the effect of blasting power of ore. 5. Pre-cut roof top, not only for protection, but also can improve the effect of blasting power of ore. Explosive mine ore shipped for the ballistic trajectory over the throwing trajectory. Pre-cut top for the ore to provide a ballistic trajectory throwing throwing space, steep longer distance explosive force to improve the effect of blasting power of ore. 6. Encourage the use of trackless mining equipment out. For high efficiency, high degree of automatic than the stope, should be strongly supporting the use of trackless equipment, and improve the mineral intensity. In summary, the tilt in the thick ore body, when the angle is greater than 4O. Roof stable or unstable roof top with pre-control conditions, the explosive power of the optimal technology of ore mining model that can climb and efficient joint use of drilling units, stage equipment, a trackless mine explosion power of this process model is the mining of ore method of the direction of development

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