Split compensation type wide material distribution ferroalloy furnace discharging nozzle

Abstract

The invention relates to a split compensation type wide material distribution ferroalloy furnace discharging nozzle. The discharging nozzle is divided into two parts including an upper part and a lower part, the upper part comprises a connecting material pipe, a transition material pipe, an adjusting pull rod and a material nozzle cover, the lower part comprises a material nozzle head, a supporting brick ring and a protective plate, and all gaps are filled with fire-resistant sealing materials. By means of a split manner, the installing heights of the upper and lower parts can be adjusted, thematerial face height during smelting can be changed, burning loss compensation of the material nozzle head can be achieved, the material nozzle cover of the upper part achieves transition of a material stack cross section from a round to a long round, the coverage area of a material stack is enlarged, the distance between material stacks is decreased, and it is guaranteed that an electrode is evenly wrapped with furnace materials; the material nozzle head of the lower part is made of heat-resistance stainless steel ZG20Cr25Ni20, and the service life at the high temperature is prolonged; by means of the split compensation type wide material distribution ferroalloy furnace discharging nozzle, the number of discharging nozzles around the electrode can be kept unchanged, the layer height of aplant is unchanged, and the discharging smoothness and the furnace material distributing uniformity are achieved.

Description

technical field [0001] The invention relates to accessories in the ferroalloy furnace industry, in particular to a split compensation type wide distribution ferroalloy furnace blanking nozzle. Background technique [0002] The feeding nozzle is an important part of the feeding system of the ferroalloy furnace. Its upper part is connected to the feeding pipe of the feeding system, and its lower part passes through the hole of the furnace cover and enters the furnace cover to withstand the ambient temperature of several hundred degrees in the furnace cover. After the furnace material passes through the feeding nozzle, it relies on the natural accumulation characteristics of the material to form a material pile, which evenly wraps the electrode. The tip of the feed nozzle will burn out if it is in the high temperature environment in the furnace cover for a long time. [0003] There are two types of existing ferroalloy furnace feeding nozzles: [0004] 1. Straight plug-in type...

AI Technical Summary

Problems solved by technology

[0009] 3) Made of conventional materials, the service life is short

[0011] 1) Use a straight plug-in type to increase the number of feeding nozzles around the electrode, resulting in an increase in the number of feeding pipes connected to the feeding nozzles. In order to avoid material pipe blockage and interference between the feeding pipe and surrounding equipment, it is necessary to increase the height of the plant simultaneously to ensure The installation angle of the material pipe increases the project investment;

[0012] 2) In order to prolong the service life of the nozzle head, the water cooling method is adopted, but there are potential safety hazards

[0013] Therefore, existing improvements cannot effectively solve the problems existing in the prior art, and there is an urgent need to develop a ferroalloy furnace blanking nozzle that effectively solves the problems of the prior art

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