Design method of converter cast iron water-cooling mouth

Abstract

The invention relates to a design method of a converter cast iron water-cooling mouth, comprising the steps of: 1. designing shape size; 2. designing install size; 3. designing a converter cooling system; and 4. designing the main body material of the converter mouth. The converter cast iron water-cooling mouth has the following advantages and benefits: 1. water tight: a cast mode which is pre-cast with a cooling water pipe is adopted, the water pipe is shaped by means of cold bend, and the surface of the water pipe has a good protection layer, therefore, the cast iron water-cooling mouth is watertight; 2. no mending: the mouth is watertight, therefore, the mouth can be out of maintenance; 3. long service life: under the normal using condition, the cast iron converter mouth can use one converter campaign without needing to change the converter mouth to prevent from affecting the manufacture; 4. hard deformation; and 5. hard sludge adhering and easy sludge removing. Because the materialis different, the cast iron converter mouth is hard to be adheree with the sludge and easy to remove less quantity of the sludge.

Description

technical field [0001] The invention relates to the structural design of a furnace mouth of a converter in the metallurgical industry, in particular to a design method for a cast iron water-cooled furnace mouth of a converter. Background technique [0002] The converter is one of the most important equipment in the steelmaking plant, and the mouth of the converter is an important accessory of the converter. The furnace mouth of the converter should be designed on the basis of the converter, and the basic content of its design can be summarized into three elements, the design of the external dimension, the design of the installation size, and the design of the cooling system of the furnace mouth. In addition, attention should be paid to the weight of the water-cooled furnace mouth, the water pressure, the connection method between the furnace mouth cooling pipe and the converter cooling system, and so on. [0003] The defects of the existing steel structure water-cooled furn...

AI Technical Summary

Problems solved by technology

The water-cooled furnace mouth of the steel structure is welded by steel plates. Because it is a welded part, it is easy to leak water under long-term high heat intensity, which brings great trouble to the converter steelmaking.

[0005] 2. Inconvenient to repair

[0006] 3. Short service life

The service life of the steel structure water-cooled furnace port is short, and generally the furnace port needs to be replaced in less than one furnace operation, which has a great impact on production

[0007] 4. Easy to deform

Because it is a welded piece of steel structure, almost all parts are welded by steel plates. Under high heat intensity and long-term working conditions, the steel structure furnace mouth is prone to deformation

[0008] 5. Easy to stick to slag and difficult to remove slag

It solves many problems in the traditional production process, such as high cost, easy cracks in the inner ring, inability to repair welding in some positions, short service life, high equipment maintenance costs, and long production time due to problems.

[0011] But in actual use, there are still some deficiencies in the above two disclosed technologies and the existing steel structure water-cooled furnace mouth

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