Honeycomb water channel drum type online slag cooler and its application production system

Abstract

The invention discloses a honeycomb water way roller type online slag cooler and a production system applying the same. The honeycomb water way roller type online slag cooler comprises a machine frame, a flashboard set expansion joint, a feeding chamber, a slag cooler rotor, a gear, a slag outlet chamber, a water outlet pipe, a water inlet pipe, a speed reducer, a slag outlet, a honeycomb water cooling layer and a high-temperature particle cooling pipeline. By implementing the honeycomb water way roller type online slag cooler, continuity and stability of the process for cooling high-temperature chlorination residues and returning the high-temperature chlorination residues to a furnace to temperature control are achieved, and therefore the whole production process can be continuous and stable, the reaction section temperature in the furnace can be effectively controlled, it is not needed that the furnace is stopped for discharging slag, the phenomenon that supply of the high-temperature chlorination residues is not in time is eradicated, and therefore the continuity and stability of the whole low-temperature chlorination process are achieved, the production efficiency is improved by 35%, and the space expenses for chlorination residue stacking are saved for pilot plant test production.

Description

technical field [0001] The invention relates to a temperature control method of a low-temperature fluidized chlorination furnace and an on-line cooling method of hot slag, in particular to a honeycomb channel drum type online slag cooler suitable for producing titanium tetrachloride in a low-temperature fluidized chlorination furnace of carbide slag and its application production system. Background technique [0002] The process of producing titanium tetrachloride by chlorination has been widely used in my country. The raw material used in the low-temperature boiling chlorination process is carbonized blast furnace slag (containing TiC, 6% to 14%). According to the amount of TiC contained in the raw material, the material The average residence time is controlled between 40±5min, and the reaction temperature is controlled within the range of 600°C to 680°C. The temperature control is realized by cooling the chlorinated residue, and the feeding amount of the cooled chlorinated ...

AI Technical Summary

Problems solved by technology

[0003] Practice has proved that the low-temperature boiling chlorination furnace without the honeycomb channel drum type online slag cooler cannot guarantee the feeding amount and continuity of the slag returning temperature control process, which greatly reduces the efficiency of the entire production process, and a large amount of chlorination residues are harmful to the production process. Strict storage site requirements have brought serious burdens to production operations and environmental protection

When the temperature of the chlorination furnace rises to 580°C, in order to control the temperature not to exceed 680°C, the cooled chlorination residue must be added at a feeding rate of 2t / h. When the total amount of materials and returned slag in the furnace reaches 3.5 tons, stop Furnace slag, discharged hot slag is collected and stored for natural cooling, and the chlorinated residue discharged by this process has good thermal insulation performance. When the cooled slag in the slag return tank is used up, it is often impossible to replenish enough cooled chlorinated residue in time. resulting in unnecessary shutdowns

Images