Grinding method of water-quenched carbide slag

Abstract

The invention discloses a water quenching carbonized dreg grinding method, which belongs to the technical field of powder processing, and aims at solving the problems that the water quenching carbonized dreg treated by a ball grinder grinding process for the carbonized dreg which is slowly cooled in air has large steel ball loss and low grinding efficiency, and the ground granularity does not meet the requirements. The water quenching carbonized dreg grinding method comprises the following steps: adding the water quenching carbonized dreg into a ball grinder stock bin; grinding by a grinding body to prepare carbonized dreg powder, wherein the grinding body is composed of steel balls with large and small grain diameters, the weight of the large-grain-diameter steel balls accounts for 60%-75% of the weight of the grinding body, the diameters of the large and small steel balls are phi30mm-phi80mm, and the difference value of the diameters of the two steel balls is not less than 20mm. According to the method, a process of firstly crushing and then grinding is not needed, and the production process is simple and easy to control; the granularity of the obtained carbonized dreg powder is uniform and stable, and the granularity requirements of grinding of the water quenching carbonized dreg by a low-temperature selection chlorination process are met; and the loss rate of the steel balls is reduced, the unit power consumption of the ball grinder is reduced and the production cost is saved.

Description

Technical field [0001] The invention relates to the technical field of powder processing, in particular to a grinding method of water quenched carbonized slag. Background technique [0002] In order to recover the titanium resources in the titanium-containing blast furnace slag, Panzhihua Iron and Steel has mastered a method to prepare TiCl from the blast furnace slag 4 The new process technology of Panzhihua Iron and Steel Co., Ltd. is the “High Temperature Carbonization of Panzhihua Steel's Blast Furnace Slag-Low Temperature Selective Chlorination” process. This process uses a carbonaceous reducing agent to perform high-temperature reduction and carbonization of blast furnace slag in an electric furnace to reduce titanium to titanium carbide (TiC). The blast furnace slag after carbonization is called carbonized slag, and the carbonized slag is heated and melted with high pressure water. The water quenched carbonized slag is obtained, and the water quenched carbonized slag is gr...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a method for grinding water-quenched carbide slag, which solves the problem of grinding water-quenched carbide slag by using a slow-cooled carbide slag ball mill grinding process in the air, which has large loss of steel balls and high grinding efficiency. The problem that the particle size after grinding does not meet the requirements

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