BLAST FURNACE INSTALLATION

摘要

A blast furnace installation (100) equipped with a blast furnace body (110), a hot air blowing means (114, 115, etc.) for blowing hot air into the blast furnace body (110) through a tuyere, and a pulverized coal supply means for supplying pulverized coal (2) into the blast furnace body (110) through the tuyere. The pulverized coal (2) is obtained by means of dry distillation of low-grade coal. The pulverized coal supply means is equipped with: a pneumatic conveying means (115-120) for pneumatically conveying the pulverized coal (2) to the tuyere by means of a carrier gas (107) made of a mixture of air (106) and an inert gas (102); a temperature sensor (121) for detecting the temperature of the carrier gas (107) near the tuyere; and a control unit (122) for adjusting the mixing ratio between the air (106) and the inert gas (102) in the carrier gas (107) of the pneumatic conveying means (115-120) on the basis of information from the temperature sensor (121).