Annular water-cooling protection plate and manufacturing method thereof

Abstract

The invention belongs to the technical field of hydraulic clay guns, and relates to an annular water-cooling protection plate and a manufacturing method thereof. The annular water-cooling protection plate comprises a steel plate and an arc-shaped protection plate, the steel plate and the arc-shaped protection plate are welded and fixed, and a water-cooling pipe structure is installed on the inner arc face of the arc-shaped protection plate; the water cooling pipe structure adopts a spiral pipe distribution mode to distribute pipes and comprises a central pipe assembly, the central pipe assembly is composed of two elbows and a central pipe, the end A of the first elbow is welded to one end of the central pipe, and the other end of the central pipe is welded to the end C of the second elbow; and the B end of the first elbow communicates with a water inlet pipeline, the D end of the second elbow communicates with a water return pipeline, and the water inlet pipeline and the water return pipeline are arranged in a staggered mode. The water-cooling pipe structure is mainly processed in a pipe bending forming mode, so that the manufacturing method has the advantages of small welding amount and small operation difficulty, and the reliability of a finished product is high under the same water pressure use condition.

Description

technical field [0001] The invention belongs to the technical field of hydraulic mud guns, and relates to an annular water-cooling protection plate and a manufacturing method thereof. Background technique [0002] The hydraulic mud gun is the necessary equipment in front of the furnace in the smelting industry. Its function is to quickly and accurately block the taphole after tapping, so that the blast furnace can quickly enter the next cycle of operation. The main function of the dredging mechanism of the hydraulic mud gun is to press the mud into the tapping channel to realize the plugging operation; according to the working conditions, the arc surface at the bottom of the gun body of the mud gun is close to the iron hole when working, and the operating environment temperature In order to protect it from heat as much as possible, a water-cooled protective plate is generally installed at the bottom of the gun barrel of the mud-beating mechanism. At present, the manufacture...

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Problems solved by technology

[0004] However, the reliability of the above two structures in use mainly depends on the quality of the weld and the tightness. The water-cooled protection plate of the box needs to be corrected for welding deformation during welding. The welding volume of the “serpentine” water-cooled protection plate is large and the operation High requirements, difficult production, and many welding nodes, high risk of leakage

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