Double-layer furnace burden radial equal thickness burden distribution machine for rotary hearth furnace and design method of burden distribution curve of double-layer furnace burden radial equal thickness burden distribution machine for rotary hearth furnace

Abstract

The invention provides a double-layer furnace burden radial equal thickness burden distribution machine enabling the scattered furnace burden to be distributed on the surface of a rotary working table along the radial direction. The machine comprises a trough, vibration motors, springs, a baffle plate and screen plates. A discharge port at the tail end of the trough is particularly designed into sections of fold lines or a continuous curve, so that the continuation and the evenness of burden distribution, and the equal thickness of a material layer can be guaranteed; the vibration motors drive the trough to vibrate, so that the scattered furnace burden on the trough moves forwards; the springs are used for supporting and reducing vibration; the baffle plate is used for dividing the trough into a furnace trough and a bottom trough; and a crushed furnace burden screening device is arranged at the front end of a burden distribution base plate, so that the crushed furnace burden can be effectively screened before being charged into the furnace. Through the burden distribution machine, the aims of radial equal thickness burden distribution of the rotary hearth furnace, double-layer burden distribution (or multi-layer burden distribution) and preventing the crushed furnace burden from entering into the furnace can be achieved, and the necessary guarantee can be provided for the stable production and the high-efficiency running of the rotary hearth furnace, so that the machine has an important engineering practical value.

Description

technical field [0001] The invention relates to a special equipment for the process of producing granulated iron with a rotary hearth furnace, in particular to a double-layer furnace charge radial equal-thickness distribution machine and a design method of the distribution curve for conveying bulk charge. Background technique [0002] Rotary hearth furnace coal-based direct reduction is an ironmaking process developed in the last 30 years. Its roasting time is short and the degree of mechanization is high. Therefore, special charging and discharging equipment must be equipped with the rotary hearth furnace. The feeding of the rotary hearth furnace has special requirements. The pellets containing carbon and raw iron ore powder must be continuously and evenly placed on the rotating disk of the rotary hearth furnace for high-temperature reduction reaction. The charge arranged on the bottom of the rotary hearth furnace requires equal thickness and uniformity. This technology is ...

AI Technical Summary

Problems solved by technology

However, due to the large drop (generally about 1 meter) between the belt transported to the vibrating distribution machine, it will still be broken

Once the bulk material enters the rotary hearth furnace, it will reduce the production efficiency and bring troubles to the subsequent spiral discharge

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