Detaching tool for upper nozzle brick for steel pouring

Abstract

The invention relates to a detaching tool for an upper nozzle brick for steel pouring. The detaching tool comprises an upper nozzle brick pull head penetrating in an upper nozzle brick hole from bottom to top, and a baffle with the diameter larger than that of the bottom of the upper nozzle brick exists in the part, located at the lower portion of the upper nozzle brick, of the upper nozzle brick pull head. The upper portion of the upper nozzle brick pull head is connected with a drive device through a movable connector. The movable connector can swing front and back, so that the upper nozzle brick pull head and the movable connector are connected, and the upper nozzle brick pull head is fixed by the movable connector in the longitudinal direction. Space for the upper nozzle brick to longitudinally move is formed between the drive device and a mechanism bottom plate, and it is guaranteed that the upper nozzle brick is pulled out of a steel ladle under the action of the upper nozzle brick pull head through the space formed between the drive device and the mechanism bottom plate. The upper nozzle brick pull head is driven by the drive device to integrally pull the upper nozzle brick out. All operation is conducted mechanically, and therefore the labor intensity of operators is lowered. Meanwhile, connection between the movable connector and the upper nozzle brick pull head is achieved through swinging of the movable connector, and operation is easy and fast.

Description

technical field [0001] The present invention is an improvement to the removal of the upper nozzle brick used for iron and steel casting, especially an improvement on the existing disassembly method, which can ensure that the removal time of the upper nozzle brick does not exceed 2 minutes, and at the same time does not cause damage to the upper nozzle block, and reduces the cost of ladles. Heat radiation can harm the operator and reduce labor intensity. Background technique [0002] The upper nozzle brick is an important part in the iron and steel smelting process, it is used together with the upper nozzle block (attached figure 1 ). When the hole diameter of the upper nozzle flow steel expands to a certain extent, it needs to be replaced when it poses a threat to the safety of pouring steel. There are roughly two existing replacement or disassembly methods: one is that the hot repair operator of the ladle uses a pick to break the upper nozzle brick from the bottom of the ...

AI Technical Summary

Problems solved by technology

There are roughly two existing replacement or disassembly methods: one is that the hot repair operator of the ladle uses a pick to break the upper nozzle brick from the bottom of the ladle. This method is a common method for disassembling the upper nozzle brick. This method is not only labor-intensive, especially when the operating environment temperature is high, it usually takes 10-15 minutes to disassemble an upper nozzle brick, and it is very easy to damage the upper nozzle brick, affecting the life of the brick and causing hidden dangers to product quality

Another method is to use a longer hammer head to pass through the aperture of the upper nozzle brick from the ladle mouth, and several operators pull and hit the upper nozzle brick from the bottom of the ladle to remove it. The damage caused by the nozzle brick to the upper nozzle seat brick, but the labor intensity and production environment have not been effectively improved, especially when the area of ​​the hot repair location of the ladle is not open enough, this method of removing the upper nozzle brick cannot be carried out

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