Refinery furnace hot-pack plug-rod multi-box casting device system

Abstract

The invention relates to refinery heat piston pole multi-box casting system. It is made up of pole holding device, elevation mechanism, piston pole, water sealed on stove bottom. The pole drives the whole system to move up and down, accomplishes the control of pole start and close quantity. It ensures the inner of the water brick a reasonable allocated space, it solves the problem in carrying on stove+refinery craft, and it enhances the liability of the cast components.

Description

1. Technical field: [0001] The invention belongs to the field of steel smelting and pouring, and in particular relates to a multi-box pouring device system for hot charging plug rods in a refining furnace. 2. Background technology: [0002] At present, domestic enterprises adopting the dual process flow of electric arc furnace + refining furnace generally use sliding nozzles for pouring molten steel after smelting in the refining furnace, and the current technical level of the opening times for pouring can only reach about ten cases (such as Shandong's Shiheng Iron and Steel Works, Shanghai No. 3 Steel Plant, etc.), and the pouring time should not be too long, so this method cannot be applied to multi-box casting (40-60 boxes) of castings (or steel ingots), and for large-scale production The one-machine group company of castings must adopt the multi-box pouring process to meet the needs of actual production. Based on the actual situation that multi-box pouring is necessary, ...

AI Technical Summary

Problems solved by technology

However, the repacking operation will inevitably bring many unfavorable factors, such as: secondary oxidation of molten steel, reduction of molten steel temperature, hidden safety hazards in operation, increased smelting costs, etc. All these negative effects are relatively large and do not conform to normal conditions. production process

[0004] In 1975, Beijing No. 2 General Machine Tool Factory was the first in China to introduce the SKF furnace for refining ASEA outside the furnace of SKT Company in Sweden. At the same time, it also introduced the company's hot-loading plug mechanism to pour steel ingots, and the pouring times were 5-10 times ( It is equivalent to 5--10 cases of pouring castings); in the 1980s, the domestic sliding nozzle technology gradually developed and matured, and the technology for pouring steel ingots to be opened less than ten times was widely adopted by various steel mills, and it has been used for five or six years. Beijing No. 2 General Machine Tool Factory, which uses plug rod pouring technology, originally designed the hot-fit plug rod for electrical control installation. The ambient temperature is very high during the actual operation process, which has a great impact on electrical components and a high failure rate; and the electrical transmission control accuracy is poor. , The operation is cumbersome and other reasons, and the pouring method of sliding gate technology is adopted.

Since then, there is no record of using the hot-fill plug rod casting technology in China

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