Tianjin Rockcheck Steel’s 580m3 blast furnace using Beijing Allied Rongda’s patented technology to transform the iron groove structure for the storage of iron, while iron clearance by the spraying of local repair to the specific heat is the main channel to use 55 days after repair of partial to the first point off the iron a spraying repair, re-use the 25 days after the second spraying, the use of 31 days after the third injection, the use of hot iron works 10 days, repair, overhaul interval twice as long as 121 days, accumulated out of iron reached 25 million tons, create a new record of domestic medium and small blast furnace iron storage longevity.
Single taphole blast furnace iron-type iron runner reservoir patented technology uses high-performance single explosion castable blast furnace iron export channel for the whole cast, the main channel iron structure designed for storage, and skimmers and structure of materials unique design. Iron ditch maintenance, Allied Rongda jet wet ditch on the local injection of iron repair, using the results from the point of view, and cast iron casting material comparable to ditch life. The technology has been in the country nearly 100 Blast Furnace and achieved good economic results. The user has full use of Rongda standard transformation.
Tianjin Rockcheck Iron Works gave a high evaluation of this technology, Not only solved the explosion of fast drying technology, and technological possibilities was resolved using large iron ditch high-quality blast furnace materials for the small blast furnace iron ditch; and the spraying method used in lining construction, the building of the ditch lining from the surface to the internal compact of the same density, can greatly extend the life of iron ditch. The cast house environment have been greatly improved, reducing the labor intensity of blast furnace operator, refractory consumption for per one ton of iron was greatly reduced, hot downtime was greatly reduced, The utilization coefficient of blast furnace has been improved a lot, and overall economic efficiency has been greatly improved. Thus "environmental revolution" of small and medium-sized blast furnaces in cast house truly comes true.
