Gas-blowing and slag-removing device and slag-removing method

Abstract

The invention relates to a gas-blowing and slag-removing device and a process, mainly solving the technical problems that the slag removing is difficult to realize and the slag-removing effect is poor in the existing slag-removing device. The technical scheme of the invention is as follows: the gas-blowing and slag-removing device comprises a gas-blowing mechanism, a hot-iron ladle and a slag-skimming machine, and is characterized in that the gas-blowing mechanism is fixed at one side of a supporting platform by a hinge base and comprises an oblique rail frame which is provided with a rail chain; the gas-blowing and slag-removing device also comprises a bracket which is level to the upper surface of the rail frame and is provided with a speed-changing machine; an output shaft of the speed-changing machine is provided with a first chain wheel matched with the rail chain; the rail frame is also provided with a clamping trolley which forms a moving pair with the rail frame; the clamping trolley is provided with a second chain wheel which is fixed together with the rail chain; a connecting rod positioned in the middle of the rail frame is clamped and fixed in the middle of the clamping trolley, and is equidirectional with the rail frame; and the lower end of the connecting rod is provided with a connector and is connected with a gas-blowing and slag-removing gun by a connecting flange. The invention is mainly used for removing the slag on the surface of hot iron in the hot-iron ladle.

Description

technical field [0001] The invention relates to an air blowing slag removal device and a process. Background technique [0002] The desulfurization and slag removal process in the steelmaking process is one of the very important processes. The slag removal effect is directly related to the loss of molten iron and the quality of molten steel in the subsequent process. The vast majority of domestic steelmaking plants adopt the traditional slag removal process. First, the slag is removed by a mechanical slag remover, then a considerable amount of slag remover is added to thicken the remaining molten iron slag, and finally the remaining molten iron slag is removed by the slag remover. The main disadvantages of this slag removal process are: longer operation time, a large amount of molten iron taken away during the slag removal process (large iron loss), and a large amount of auxiliary material costs due to the consumption of a considerable amount of slag removal agent. clean. ...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide an air blowing slag removal device and a slag removal method, which mainly solve the technical problems that existing slag removal devices are difficult to realize on site and have poor slag removal effect. The gun is continuously inserted into the predetermined depth of molten iron for operation, and the slag on the surface of the ladle is quickly gathered at one end, which is convenient for the slag remover to operate

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