Method for preparing cement from municipal solid waste incineration furnace slag

• Main Authors: LI YINMING, CHEN XIAODONG, HAO LIWEI, WU XUEQIAN
• Format: Patent
• Language: Chinese; English
• Published: 27.07.2016
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; LIME, MAGNESIA; METALLURGY; REFRACTORIES; SLAG; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TREATMENT OF NATURAL STONE

The invention discloses a method for preparing cement from municipal solid waste incineration furnace slag.According to the method, the municipal solid waste incineration furnace slag substitutes raw materials of the cement to make cement raw meal, portland cement clinker is fired, and safety use of the cement is guaranteed.In the actual cement production process, a bypass air discharging system is arranged, normal operation of a cement kiln is guaranteed, the crusting and blocking phenomena of volatile components which are wrapped and carried by the raw materials to a cement kiln system caused by the circular enrichment rule are eliminated, and quality of a cement product can be guaranteed.By means of the method, waste materials can be changed into things of value, the municipal solid waste incineration furnace slag is adopted as the substitute raw material in the cement production process, on one hand, the effect that the incineration furnace slag is reutilized can be achieved, and on the other hand, the de