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Reasonably determine the full exploitation of mineral resources, industrial indicators

(2) by mixing with stone ore grade and the grade of sub-deletion rate checkmark warehousing; 3) strict raw material selection off (1) l chosen to develop the raw material monitoring system to increase the raw material Na election officers and election schedule by two classes increased to three shifts. (2) raw material selection process in full-time quality inspector and measurement based member of their duties.. 4) burning off by strict quality and level of sub-ore calcining kiln, fine, operation. Full use of square kilns, small flounder, or not open kiln improves product quality... ': 5) The selection of the good relations of clinker in the clinker quality inspector selection process and measurement of full-time members set to establish the amount of economic responsibility of the clinker product, ensure that the final quality of all qualified. 6) the good product storage, shipping off the production class of the belt sample preparation products for laboratory analysis grade, according to level storage. Foreign shipped, installed inside the train again after the sample testing, proofreading, to ensure that the output products meet national standards, i987 ~ 199O-year rate of output of products with both hands full of letters lOO. 7) l and the selection of the amount of total wages linked to the students, the clinker in the selection process, the implementation of the payroll with the amount of floating selection methods,[link widoczny dla zalogowanych], selection efficiency is doubled to take the above measures,[link widoczny dla zalogowanych], a series of bad Ij, i987 ~ 1990 years, the mining rate from 546% to pre-72.5%, 17.9% improved, multi-Ore lO. 70,000 tons is equivalent to extend the mine life of 7 months, can produce refractory clinker 7.! Million tons, a value of 8.68 million yuan for the country. In addition, changing the product mix,[link widoczny dla zalogowanych],,;, interest relief port 92, No. 3】 gradually t ■ u-_ one black goldfish t ... ... t new ultra-fast hard-mine communication volume of portland cement anchor Deng Pei Di Shan Institute of Mining Research - a super-Volume rapid hardening Portland cement anchor bolts in the cement volumes developed on the basis of the new anchor. Because it not only has high early strength, manufacturing is easy, the installation process is simple , low cost, especially point, also has the setting time can be adjusted, a wide range of sources, adaptability and other characteristics. Underground engineering in recent years been supporting a rapid promotion. {Multi-volume project that the bolt in the roadway splash . Cavern, stope support has made good in both. Good technical and economic effect, after all, a simple and effective means of retaining top. Ultra-fast hard-Volume Portland Cement Anchor Research Institute of Ma On Shan mining of proprietary products, a total of anchoring agent for the base material of ordinary cement, mixed with a certain amount of hardening agent. According to different use and the ingredients, there are three models to meet different construction requirements.. First, the anchor structure and main properties of ultra -fast hard-ordinary cement volumes mainly by the anchor agent and the anchor rod composed of two parts. Bolt anchoring agent material should have sufficient hours of strength, setting time can be adjusted _ sclerosis and other features. According to the test, mixed with ordinary cement and Jing approach, the preparation of fast-hardening cement, add water a minute to harden the most discontented, the setting time can be adjusted with a retarder, the compressive strength of up to 7.0 hours \-30.0MPa,[link widoczny dla zalogowanych], 28 days after the strength and stability and continue to grow. Also has a micro-expansion, no corrosion of steel and other special properties. Steel rod can be smooth or threaded steel system. 6 do, given the length required, which together with gasket and nuts. (A) of the anchoring agent properties and influence of major '1, Bo Shu Po to the performance of three types of anchoring agent, use an ordinary 52-base test preparation mixed with Portland cement retarder 0.15%. The main properties in Table l .. 2, the strength of anchor agent playing the main factors (1) setting time retarder on anchoring agent and the impact strength of materials for the 525 ll Achilles Portland cement, cement hardening agent incorporation 25% of the amount of results see Table 2 . As can be seen from Table 2,[link widoczny dla zalogowanych], the setting time as the anchoring agent retarder to slow the increase of incorporation, incorporation amounted to 0.4% when the retarder when the initial setting of cement over, lh, but the cement initial and final setting features a very short interval remains unchanged. Therefore, the 'shop-resistant solid condensation agents can be used between the surplus to the incorporation retarder. Adjustable for a while, when the retarder of the incorporation of from 0.15% to O29%, the. The initial setting of cement extending from the 9.75rain to 29rain; and 1h and 3 of the strength of nine almost the same, 1. -. 28d also increased in intensity. So retarder increase (initial setting of about 0.5b) f has no effect on the strength of anchoring agent (2) water-cement ratio on strength of anchoring agents water-cement ratio strength to both the anchoring agent or the late hours of strength, have improved the product grades, and gaze intently quality products have increased every year , from 11 in 1986 to improve> I] 1990 years of 81.9%. Due to product mix changes, and the export rate from 27.6% to 199 (43%} years, refractory clay and clinker products are exported to more than ten countries and regions, home to the West to create a foreign exchange, for the mine increase economic benefits.
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