Prefabricated iron tap channel

Abstract

The invention relates to an iron smelting blast furnace, in particular to a prefabricated iron tap channel which comprises a steel shell with a U-shaped cross section, a permanent layer arranged in the steel shell, and a working layer arranged on the permanent layer. The permanent layer comprises a prefabricated base arranged on the inner edge of the steel shell; the prefabricated base comprises multiple prefabricated base blocks assembled together along a straight line; each two adjacent prefabricated base blocks are occluded; a prefabricated plate is inserted into the upper end of the prefabricated base through an installation groove and comprises multiple refabricated single plates assembled together along a straight line; each two adjacent prefabricated single plates are occluded; a temperature measurement plate installation groove is formed in the outer side surface of each prefabricated single plate; a temperature measurement plate is arranged in each temperature measurement plate installation groove; a temperature sensor is arranged on each temperature measurement plate; and cables of the temperature sensors penetrate through the steel shell so as to be connected to a controller. The prefabricated iron tap channel is convenient to install and maintain, long in service life, high in safety coefficient, and simple in structure.

Description

technical field [0001] The invention relates to an iron smelting blast furnace, in particular to a prefabricated iron tapping trough. Background technique [0002] Blast furnace iron trough is an essential infrastructure in the blast furnace ironmaking process engineering. Its main function is to buffer the slag and iron ejected from the taphole, realize the separation of slag and iron, and further transport the slag and iron to the ladle and slag pellets respectively. chemical facilities. [0003] At present, the permanent layer in the steel shell of the blast furnace iron trough is built with refractory bricks and added with castables, which has a great risk of molten iron penetration and iron leakage. Once the iron leakage is penetrated, the losses to customers will be very huge. One of the reasons for iron leakage is that the steel shell has been sealed in the concrete for a long time, and the high temperature in the steel shell cannot be released, resulting in deformat...

AI Technical Summary

Problems solved by technology

It solves the problem that the common iron channel galvanic couple preset scheme cannot fully monitor the temperature change of the iron channel, and avoids the dead zone problem that the iron channel is severely corroded locally and the temperature is too high and the monitoring device cannot find it; combined with the finite element analysis method, a grid pattern monitoring is established The network is conducive to the establishment of the iron channel erosion system, but it cannot effectively improve the service life of the iron channel

[0005] In addition, in order to prevent iron leakage, a concrete protective layer is set outside the steel shell, which is complex in structure and inconvenient for heat dissipation

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