On-line vacuum arrangement apparatus

A vacuum and vacuum treatment technology, which is applied in the field of vacuum refining treatment of molten steel in steelmaking plants of iron and steel enterprises, can solve the problems that the offline layout structure does not meet the production needs of higher RH vacuum treatment ratio, and save the time of driving, saving time, Effect of Tapping Temperature Reduction

Active Publication Date: 2008-12-31
武汉钢铁有限公司
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Problems solved by technology

[0005] Aiming at the problem that the existing off-line layout structure of RH vacuum treatment equipment and smelting furnace does not meet the production needs of higher RH vacuum treatment ratio, the present invention provides a vacuum online layout device, which can better solve the above problems

Method used

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Embodiment Construction

[0025] The present invention is described in detail below in conjunction with accompanying drawing.

[0026] The vacuum online arrangement device includes a smelting furnace 2 and RH vacuum processing equipment 1 , and the RH vacuum processing equipment 1 is built above the tapping line 8 of the smelting furnace 2 . Two ladle cars are set on the tapping line 8 of the smelting furnace, one ladle car is responsible for transporting the molten steel after tapping the smelting furnace to the RH vacuum treatment equipment, this ladle car is called the ladle car 3 of the smelting furnace, and the other ladle car is responsible for Transport the molten steel treated by the RH vacuum treatment equipment to the molten steel receiving bay, and then be hoisted by the crane for continuous casting. This ladle cart is called RH ladle cart 5.

[0027] Simultaneously, a ladle hoisting device is provided above the RH vacuum treatment equipment 1, referring to Figure 2 to Figure 4 , it compri...

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Abstract

Disclosed is a vacuum on-line layout device, belonging to the field of vacuum refining processing molten steel in steelmaking plants of steel enterprises. Aiming at the problem that the off-line layout structures of the present RH vacuum processing equipment and the smelting furnace do not meet with the production needs of higher RH vacuum processing ratio of the molten steel, the invention provides a vacuum on-line layout device, which is characterized in that a buggy ladle from the smelting furnace is directly driven to an RH processing site; ladles are hoisted by a frame structure driven by a hoisting; the action that the ladles are hoisted makes an insert pipe be immersed into the molten steel to start refining processing the molten steel; and at the same time, the buggy ladle from the smelting furnace can return to the smelting furnace to proceed with tapping from the seat tank of the next furnace. The molten steel processed by RH is dropped down by the hoisting to the RH buggy ladle which carries the ladles to the receiving straddle, and the ladles are hung by a driving to a caster to be continuously cast. The vacuum on-line layout device has the advantages of saving process time, safe and stable running and simple production structure. Thus, the vacuum on-line layout device is a successful example of process design in newly-built steelmaking plants, and is favorable for popularization and application.

Description

technical field [0001] The invention belongs to the field of vacuum refining treatment of molten steel in a steelmaking plant of an iron and steel enterprise, and in particular relates to an arrangement structure of equipment in a smelting furnace before the molten steel is smelted and the vacuum refining treatment is completed. Background technique [0002] The process of steelmaking production is that molten iron + scrap steel is smelted in a smelting furnace (open hearth furnace, smelting furnace, electric furnace) (mainly decarburization, dephosphorization and sulfur removal, and temperature rise), and then the molten steel is poured into the molten steel container (ladle) and processed by refining equipment. Adjust the composition and temperature of the molten steel to the predetermined range, and then transport it to the casting equipment (casting machine) to cast it into billets. Modern steel production is continuous. [0003] RH vacuum treatment equipment is a speci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C7/10
Inventor 李凤喜彭玮珂沈静娟宋泽启杨杰夏春祥王争孙凯杜斌卢志文
Owner 武汉钢铁有限公司
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