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七、配煤的技术操作与配成煤的质量标准我们知道,尽管配煤用的煤种一样,组成配煤的各种成分比例也一样,但由於配煤的技术操作不同,就可能使配成煤的质量指标和制得的焦炭质量随之各异,这在生产中已是屡见不鲜的事实了。因此配煤技术与配煤选择就具有同等的重要意义。配成煤的质量情况,不但对产品的质量和产量起着决定性的作用,同时对生产操作也起着重大影响,因此要求配煤技术操作,必须能够保证配成煤的质量标准。配成煤质量标准是以水分、灰分、挥发分、细度等指标表示的。现将炼焦配煤的指标要求,分别说明於下: 1.配煤水分: 解放以前配煤水分多半沿用日本或欧美标准,一般为12—15％,而实际上一般对水分多寡并不十分重视,亦无严格限制。解放以後,苏联专家建议,把水分降低到10%以下,虽然这与苏联标准比起来还是高的(苏联规定为5—6%),但由於目前设备条件的限
Seven, with the technical operation of coal blending and coal quality standards We know that, although the coal with coal, the composition of the composition of the various components of the same, but due to the technical operation of coal blending, it is possible to make with The quality indicators of coals and the quality of coke produced vary accordingly, which is not uncommon in production. Therefore, coal blending technology and coal blending options have the same significance. The quality of coal blending not only plays a decisive role in product quality and output, but also has a significant impact on production operations. Therefore, the technical requirements for coal blending must ensure the quality standards of coal blending. With coal quality standards are based on moisture, ash, volatile, fineness and other indicators that. Coking and coal are now indicators of the requirements, respectively, described below: 1. With coal moisture: Before the liberation of most of the coal blending water Japan or Europe and the United States standards, usually 12-15%, while in fact generally not on the amount of water is very important There are no strict restrictions. After the liberation, the Soviet experts suggested that the water should be reduced to below 10%. Although it is still high compared with the Soviet standards (5-6% in the Soviet Union), due to the limitations of current equipment