3 results about "Blast furnace gas" patented technology

The invention provides a gas heat value soft measurement method based on air and gas double-preheating. The soft measurement method comprises the steps of obtaining real-time data of a combustion system operation parameter; performing preprocessing on the acquired data, and obtaining effective data for solving the gas heat value; and according to the acquired effective data, calculating a gas drybase heat value. According to the method of the invention, the gas dry base heat value is indirectly calculated through a relation between a dry air amount and the gas heat value. The method is suitable for combustion equipment in which pure burning of blast furnace gas or converter gas and air and gas double-preheating technology are utilized. A calculating result can be used for guiding combustion optimization adjustment of the combustion equipment, thereby supplying a basis for safe and economic operation of the combustion equipment. The gas heat value soft measurement method can settle inconvenience and a difficulty in combustion equipment operation caused by no gas heat value online analyzer in a majority of steel plant gas combustion systems, and furthermore has high engineering value.

The invention relates to a blast furnace gas power generation purifying device and a treatment method thereof, and belongs to the technical field of gas treatment. The blast furnace gas power generation purifying device comprises a power generation unit and a purifying unit, wherein the power generation unit is used for cooling gas in the power generation process; the purifying unit is used for spraying scrubbing liquid to purify the gas, so as to improve the gas purifying effect; furthermore, the acid gas and water in the gas can be effectively removed. The treatment method adopting the powergeneration purifying device is characterized in that the temperature at an inlet of the purifying unit is reduced by the power generation unit; the scrubbing liquid is sprayed into a reaction tower of the purifying unit to scrub the gas; the acid matter and impurity in the gas are removed; the water in the gas is removed by a dewatering device in the purifying unit, so as to improve the gas purifying effect.