Static pressure tong-type fire door cleaning method and cleaner thereof

Abstract

A static pressure clamp-type furnace mouth cleaning method and its cleaner used in the metallurgical industry field. The cleaning method is to clamp the slagging of the furnace mouth with a 360° rotary clamp to open and close, and use the extrusion force of a hydraulic cylinder to make the furnace mouth clean. When the tongs are closed, the slag at the furnace mouth is crushed. The static pressure pliers-type furnace mouth cleaner designed for this method includes an upper connecting seat, an oil motor, a slewing bearing, an oil cylinder, a bracket and a clamp. The oil motor is fixed on the upper connecting seat, and the output shaft of the oil motor is provided with a small The gear, the outer ring of the slewing ring is tightly connected with the upper connecting seat, the inner ring gear of the slewing ring meshes with the pinion, the bracket is fastened to the end face of the inner ring gear, one end of the oil cylinder is connected with the bracket through a pin shaft, and the other end It is also connected with the pliers through a pin shaft, and the other shaft hole of the pliers is connected with the bracket through a pin shaft. The invention has the characteristics of accurate operation, low noise and dust, high efficiency, no shock and vibration to the blast furnace, reduced shutdown maintenance rate, and effective prolongation of blast furnace life during the slag cleaning process.

Description

Technical field: [0001] The invention belongs to the field of metallurgical industry, and in particular relates to a method and equipment for cleaning blast furnace mouths in the metallurgical industry. Background technique: [0002] At present, in all metallurgical industries, during the blast furnace smelting production process, the normal production is often affected by the slagging at the furnace mouth, and the furnace mouth slagging must be cleaned every 3-4 hours. At present, the impact cleaning method is used. The disadvantages are noise and dust, low cleaning efficiency, high purchase and maintenance costs, and the most serious problem is that there is strong vibration to all blast furnace linings (refractory bricks). The contact area between the chisel rod and the slag is small, the shape of the slag is not flat, and the positioning is often inaccurate and off-center. Sometimes the operation error directly damages the furnace mouth, which seriously affects the norma...

AI Technical Summary

Problems solved by technology

At present, the impact cleaning method is used. The disadvantages are noise and dust, low cleaning efficiency, high purchase and maintenance costs, and the most serious problem is that there is strong vibration to all blast furnace linings (refractory bricks). The contact area between the chisel rod and the slag is small, the shape of the slag is not flat, and the positioning is often inaccurate and off-center. Sometimes the operation error directly damages the furnace mouth, which seriously affects the normal production and shortens the normal service life of the blast furnace. Every year, the metallurgical industry The loss of repair and maintenance costs due to blast furnace vibration damage, shutdown maintenance and impact damage to blast furnace equipment (impact furnace mouth cleaning machine) is as high as hundreds of millions of yuan

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