On asphalt fume treatment had a "clay adsorption" technology, which uses clay to absorb asphalt fumes, smoke pollution clay after incineration. This process is complicated, high operating costs, and there is no secondary pollution problems, the actual operating results are unsatisfactory. Some enterprises according to their own conditions, asphalt smoke by burning method, the process is simple. Now some products using organic binders, emission of harmful substances during the heat treatment, but also by burning gas method, the gas burned in the stove, the burning temperature> 750 ℃, combustion volume heat intensity around 1300GJ / m3h. Over the years, in the part of the oil facility with a "wash oil absorption" technology. The use of wash oil absorbing asphalt fumes, the process shown in Figure 1. Bitumen Gas wash oil absorption saturation can be used as fuel other furnaces, reduce costs, put into better use. Blast furnace maintenance and shutdown: continue for a long generation furnace served, its equipment, structure, lining be worn in production, some way in need of repair, and some want to break the wind, and some advanced equipment to shutdown the kiln to be replaced Hebei lime kiln advanced equipment, such work is called maintenance. Access by time and nature can be divided into four categories: temporary maintenance, preventive maintenance, repair and overhaul. A temporary repair and regular maintenance overhaul mainly refers to temporary change vents and small slag tap, also including small repair work must address. Temporary access to off the wind, the wind off the program on short-term operations. To replace the air when regular maintenance or in large sets of sets, air elbow Anhui kiln advanced equipment, some of the furnace body cooler, skip, hot air valve, distributor, etc. Periodic maintenance time is short, there are more than ten hours, up to several days long, so long off the air by the blast furnace process. Second, in the repair and overhaul of heavy maintenance work, can not be processed in time during routine maintenance, it should be carried out in a blast furnace repair. In the repair projects are: repair, relining, replace the upper cooler, replace distributor Hunan kiln advanced equipment, hoist rope wheel. In the generation furnace process, repair once or twice normal. The repair time required for five days to a month, with the workload varies. The repair of the blast furnace to be shutdown, but hold residual iron. Are hearth furnace charge to hold in addition, depending on whether the replacement hearth brick lining and cooler. Overhaul including the replacement of all lining (especially the bottom), the replacement of one or all of the metal structure, expanding blast volume and the like. Overhaul time to be 30 to 45 days, medium-sized blast furnace is 25 to 40 days. _ Sky kiln lime kiln advanced equipment (certified) _ Limekiln advanced equipment from LUOZHUANG Kiln Ltd. Linyi City blue sky. _ Sky kiln lime kiln advanced equipment (certified) _ Limekiln advanced equipment is LUOZHUANG Linyi City blue sky Kiln Ltd. (www.lyshihuiyao.com) (www.lyshihuiyao.com) this year introduced a new upgrade, more pictures for reference only, please call Tel picture on this page or to obtain the latest information, contact: Liu light.