Flame welding repair machine for industrial kiln and furnace

Abstract

The present invention belongs to the field of industrial furnace and kiln repairing machine, and is especially one kind of flame welding repair machine for industrial furnace and kiln. The flame welding repair machine includes a welding repair material feeding system, an oxygen supplying system, a fuel gas supplying system, an air hammer, a pallet, a repairing spray gun and a controlling box. In the controlling box, there are inlets, outlets, pressure meters, flow meter, power source unit and disc material feeding machine. The present invention features the disc material feeding machine with disc comprising stirring wheel, upper feeding disc, lower feeding disc and middle plate; the repairing spray gun with gun body comprising cooling water pipeline, fuel gas pipeline, oxygen pipeline, welding material pipeline, and gun head comprising burner and welding material nozzle; the welding repair material feeding system comprising material bin, disc material feeding machine, etc. and the oxygen supplying system comprising oxygen pipe and oxygen source.

Description

technical field [0001] The invention belongs to the field of repairing machinery for metallurgical furnaces, in particular to a flame welding repairing machine for metallurgical industrial furnaces, which is suitable for hot repair of industrial furnaces such as converters, ladles, glass furnaces, and coke ovens. Background technique [0002] During the smelting and production process of metallurgical furnaces, the furnace lining will be eroded or damaged due to various reasons. In the case of partial damage, the service life of metallurgical furnaces can be extended by hot repair, especially flame gunning. There are mainly two flame gunning methods so far: one is to use the oxygen-gas welding repair system, as described, the furnace lining at the repaired part is melted by the high temperature above 2500 °C generated by the gas-oxygen flame combustion, and at the same time Spray the molten welding material in the gas flame to the softened furnace lining surface to be repair...

AI Technical Summary

Problems solved by technology

The utility model patent ZL98236908.5 "coke oven flame gunning machine" can complete the welding repair work, but the repairing amount per hour is only 30-60Kg, the operation efficiency is low, and it cannot meet the needs of high-efficiency hot repair of industrial kilns. The invention patent application 03131087.7 ​​"A Ceramic Welding Material and Coke Oven Repairing Equipment and Coke Oven Repairing Method" Although the efficiency of welding repairs has been improved, the premise of repairing operations is that the temperature of the furnace lining that needs to be repaired must reach 800 ° C or higher , so that the combustible particles in the welding filler can be burned, and the dependence on the lining temperature limits the application and development of this technology

The disadvantage of this device is: the disc feeder feeds unevenly, resulting in uneven delivery of welding repair material, which increases the difficulty of controlling the amount of welding repair, and the negative pressure formed is limited, making it difficult to increase the delivery of welding repair material quantity

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