Device for monitoring alpha-angle position of airtight box at furnace top

Abstract

The invention discloses a device for monitoring the alpha-angle position of an airtight box at a furnace top. A dial and a pointer disk are assembled on the horizontal axis of an alpha angle in the airtight box at the furnace top and used for providing the accurate position of the alpha angle; specifically, the dial is fixedly arranged as an outer disk; the pointer disk serves as an inner disk, a pointer is arranged inside and rotates along the horizontal axis of the alpha angle. The angle, pointed by the pointer, on the dial is the actual angle of the alpha angle and is consistent with the actual angle of the alpha angle displayed on the outer coded disk and an encoder, thus, once the alpha-angle encoder is damaged or a connector breaks, a connecting shaft in a 1:1 gearbox and a planetary reducer breaks and other phenomena happen, the dial outside the airtight box at the furnace top and the encoder are out of action, an operator can accurately judge the accident character according to the alpha-angle display position in the airtight box at the furnace top, the outer coded disk and the encoder are rapidly recovered, non-planned blowing-down caused by the phenomena is eradicated, and long-time normal and stable operation of a blast furnace can be ensured.

Description

technical field [0001] The present application relates to the technical field of blast furnace production, in particular to a device for monitoring the α angle position of a furnace top airtight box. Background technique [0002] A very important system in the normal production of the blast furnace is the charging system. The central link of the charging system is to adjust the different distribution of the furnace charge in the throat through the different inclination angles of the distribution chute, so that the gas distribution is more reasonable, so as to make full use of the gas Energy, to achieve the purpose of stable and efficient production of the blast furnace. [0003] In the normal production of the blast furnace, the α angle of the distribution chute has been observed and controlled by the external code disc and encoder. Once the α angle encoder is damaged or the receiver is broken, or the connecting shaft between the 1:1 gearbox and the star reduction internal c...

AI Technical Summary

Problems solved by technology

The measurement is difficult and dangerous. In addition, the unplanned air supply stop of the blast furnace will not only lead to the loss of iron production and increase the cost, but also there is a large risk of fluctuations in furnace conditions, and there is also thermal shock erosion on the furnace lining and hearth carbon bricks.

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