3 results about "Anthracite" patented technology

The invention relates to a high density total oxygen short process high-efficiency cleaning iron-making process. The high density total oxygen short process high-efficiency cleaning iron-making process mainly comprises the following steps: S1, uniformly mixing wide-grained iron ore powder, anthracite powder and slaked lime powder and then granulating; S2, putting the wide-grained carbon-containingpellet obtained in S1 into a rotary kiln for carrying out deep self-reduction; S3, dedusting, cooling and carrying out CO2 removal treatment on exhaust gas of the rotary kiln to obtain upgrading coalgas, and introducing the upgraded coal gas into the rotary kiln again for secondary combustion; S4, carrying out hot charging on the wide-grained metallized pellet obtained in S2 into a melting gasifier and carrying out final reduction melting; S5, respectively discharging slag and molten iron from the corresponding cinder notch and iron notch. The comprehensive energy consumption of the processis reduced by 30 percent compared with a traditional blast furnace process, the coal powder burnout ratio is greater than or equal to 90 percent, the concentration of reduction components is greater than or equal to 90 percent and the CO2 removal rate of the coal gas is greater than or equal to 90 percent; the coking, sintering and pelletizing procedures which have the maximum pollution emission of iron steel enterprises are eliminated, so that energy consumption and pollutant emission are reduced from the source.

The invention discloses a raw material pretreatment device for hydrogen purification, and relates to the technical field of hydrogen purification. The raw material pretreatment device comprises an operation frame, a grinding lug is fixed on a telescopic grinding block, an adjusting mechanism for driving the telescopic grinding block to slide relative to a rotary plate is rotatably mounted in the rotary plate, and the operation frame is provided with a vibration excitation mechanism used for driving an annular block to vibrate vertically. According to the raw material pretreatment device for hydrogen purification, primary rotary crushing treatment can be conducted on anthracite in a crushing tank through a crushing mechanism, and therefore the anthracite can be rotationally cut up by crushing blades, meanwhile, the crushing blades achieve linear reciprocating motion in the rotating process, the crushing range is flexibly and automatically adjusted, and the anthracite crushing effect is greatly improved; and the rotating radius of the telescopic grinding block can be adjusted through the adjusting mechanism, the distance between the grinding lug and the wedge face of the annular block is adjusted according to the anthracite crushing requirement, and the sufficient anthracite grinding and crushing effect is guaranteed.

The invention discloses a molten iron jar melting agent and a preparation method and application of the molten iron jar melting agent. The molten iron jar melting agent is composed of, by weight, 0 to 100% of jet coal, 0 to 100% of anthracite, 0 to 100% of industrial salt and 0 to 100% of aluminum powder, wherein the sum of the weight percents of the components is 100%. The preparation method specifically includes the steps of A pretreatment and B preparation, wherein in the pretreatment process, materials are prepared according to a formula of the molten iron jar melting agent, the anthracite and the jet coal are smashed for use, and the industrial salt and the aluminum powder are purchased for use; in the preparation process, the smashed anthracite, the smashed jet coal, the industrial salt and the aluminum powder are weighed according to the proportion of the formula and then mixed and stirred evenly, so that a target object is obtained. The molten iron jar melting agent is placed in a molten iron jar before iron is placed in a blast furnace and 200 kg to 500 kg of the molten iron jar melting agent is added each time. The anthracite, the jet coal, the industrial salt and the aluminum powder are reasonably combined, so that the polymer effect is generated, the effect that one plus one is larger than two is achieved, an intense combustion reaction is generated after the agent is added to the surface of molten iron, and the reaction is complete.