Energy-saving production method of mineral wool insulation boards in iron and steel companies

Abstract

The invention discloses an energy-saving production method of mineral wool insulation boards in iron and steel companies. The energy-saving production method comprises steps as follows: directly conveying high-temperature slag into a mineral wool production system from a metallurgical blast furnace, conveying the produced mineral wool and the heat recycled by the process into a mineral wool board production system to manufacture the mineral wool insulation boards. With the adoption of the method provided by the invention, the mineral wool insulation boards in an iron-making or steelmaking process can be synchronously produced, secondary heating and melting of the slag of the blast furnace is avoided, and the heat released by producing the mineral wool is effectively recycled to serve as the heat for thermally shaping the mineral wool insulation boards. With the adoption of the method, a heat insulating tank is arranged, so that the production of the steel and the insulation boards is effectively regulated, and mutual influence in an inconsistent production process is avoided; and a centrifugal sedimentation structure is arranged in the heat insulating tank, so that molten iron and molten steel from the slag can be effectively collected, the metal content in the slag is reduced, the damage on centrifugal rollers of a mineral wool manufacturing device is relieved and the steel output is increased at the same time; and recycling utilization of the waste in the iron and steel companies is realized, the cost of additional products is reduced while energy saving and consumption reduction are realized, and the competitiveness of the products is improved.

Description

technical field [0001] The invention relates to the technical fields of building material production, environmental protection, energy saving and the like, in particular to an energy-saving production method of a mineral wool insulation board. Background technique [0002] Mineral wool insulation board is an excellent thermal insulation material, used in various departments such as power plants, petrochemical plants, metallurgical plants and transportation, as well as thermal insulation projects for pipelines, tanks, boilers and various heating furnaces; it is also an important new building It can be combined with other materials to make various composite materials for wall panels or roofs, floors, etc. of buildings. Mineral wool insulation board is made of rocks such as blast furnace slag and basalt as raw materials, melted in a cupola, centrifuged into fibers and applied with a binder to produce flocculent resin wool, and then processed by heating, pressing, curing and cut...

AI Technical Summary

Problems solved by technology

[0003] Nowadays, the production of mineral wool boards is made by putting the cooled slag into the cupola and melting it with coke, and then through centrifugation or high-pressure blowing. However, a large amount of heat is consumed in the melting process, which not only causes secondary waste of energy, and produce a large amount of CO 2 cause energy consumption and environmental pollution