Clay gun plugging machine of smelting furnace for oxygen-enriched smelting

Abstract

The invention relates to a clay gun plugging machine of a smelting furnace for oxygen-enriched smelting. The clay gun plugging machine is composed of a clay gun plugging pipe (1), a stand column (2), a cantilever (3) and a thrusting bracket (4), wherein one end of the cantilever (3) is fixed with the side face of the middle part of the clay gun plugging pipe and the other end of the cantilever is hinged with the stand column (2) through a rotating shaft (5); a clay gun discharging nozzle (6) is arranged at the front end of the clay gun plugging pipe (1); a mud feeding opening (7) is arranged above the middle part; the mud feeding opening (7) is communicated with an inner mud pushing cylinder (8) and the back end is provided with a tailstock with a guide semi-groove; a baffling block (12) provided with the guide semi-groove is arranged at the upper part of the thrusting bracket (4); and the thrusting bracket (4) is fixedly mounted on an operation platform steel framework which is rightly in front of a melt body tap hole (13) of a metal smelting furnace. According to the invention, a gun nozzle can be accurately matched with the melt body tap hole of the metal smelting furnace; in an operation process, the positioning is simple and the clay gun plugging pipe does not have a phenomenon of drawing back; and the clay gun plugging machine has the advantages of simple structure, convenience for installation and long service life.

Description

technical field [0001] The invention relates to a plugging device for a slag outlet of a smelting melt, in particular to a mud cannon plugging machine for an oxygen-enriched smelting bath. Background technique [0002] At present, the plugging device used for the slag outlet of the metal smelting furnace melt in the prior art is mobile. When the mud needs to be dredged, the plugging device moves to the front of the slag outlet of the metal smelting furnace through the traveling mechanism to adjust the plugging. The nozzle of the gun barrel is aimed at the slag outlet of the melt, so as to realize the plugging and mud knocking. Although this kind of plugging device can realize plugging function, there are following deficiencies: 1, when plugging device is at the mouth of the nozzle, the unevenness of the work site often causes the mud blocking gun barrel mechanism to shake when it moves forward, and the positioning The accuracy is difficult to guarantee, and the nozzle of th...

AI Technical Summary

Problems solved by technology

Although this kind of plugging device can realize the plugging function, there are following deficiencies: 1. When the plugging device is aligned with the gun nozzle, the unevenness of the work site often causes the mud plugging gun barrel mechanism to shake when it moves forward, and the positioning The accuracy is difficult to guarantee, and the nozzle of the mud plugging barrel is not easy to align with the slag outlet of the melt; 2. Due to the installation space and the weight of the entire plugging device, it is difficult to install; 3. The plugging device and the melt outlet of the metal smelting furnace The final kissing of the slag mouth needs to be completed in three steps: positioning, mud loading, and mud pressing by the pressure gun cylinder. The nozzle of the mud plugging gun tube stays in the high temperature environment of the melt slag outlet for a long time, which reduces the cost of the plugging device. service life

This technical scheme adopts hydraulic control to control the rotation of the connecting rod and the arm to realize the positioning of the nozzle. Although the plugging can be realized, there are many adjustment parts on the device, the mechanism is complicated, and the operation is troublesome; The nozzle recedes and deviates, often damaging the nozzle, resulting in a short service life of the plugging device

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