Molten iron reladling system and method based on excess steel return line

A return line and molten iron tank technology, which is applied in the direction of casting melt containers, manufacturing tools, metal processing equipment, etc., can solve the problems affecting the control accuracy of automatic steelmaking and many influencing factors, so as to increase the space for process operations and solve the problems Environmental pollution problems, the effect of a wide range of applications

Active Publication Date: 2017-09-08
HUATIAN NANJING ENG & TECH CORP MCC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In traditional steelmaking operations, manual methods are generally used to collect the above-mentioned molten iron weight data. Due to many influencing factors, there are errors, which directly affect the control accuracy of automated steelmaking.

Method used

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  • Molten iron reladling system and method based on excess steel return line
  • Molten iron reladling system and method based on excess steel return line

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] see Figure 1-2 As shown, the present invention provides a system for pouring molten iron based on the return line of surplus steel, comprising: a feeding span and a furnace span arranged in parallel, connecting the feeding span and the furnace span to the surplus steel return vehicle track 2; the surplus steel return vehicle track 2 A surplus steel return car 4 is set;

[0037] A molten iron pouring system is provided on the track 2 of the return vehicle for remaining steel in the material span; the molten iron pouring system includes a dust treatment device and a weighing device;

[0038] Among them, Yu Gang returns to the car 4 to transport the empty molten iron tank 9 to the molten iron pouring system for weighing. After weighing, the dust treatment device is turned on to pour the molten iron. After the pouring is completed, it is weighed again and calculated according to the two weighings The weight of the molten iron, after weighing, return the remaining steel to...

Embodiment 2

[0054] On the basis of Embodiment 1, an electric butterfly valve 11 is arranged in the dust removal pipe 3 of this embodiment; the electric butterfly valve 11 is opened when the steel is poured, and the electric butterfly valve 11 is closed when the steel is poured.

[0055] Open the electric butterfly valve 11 between the molten iron pouring system and the dust treatment device before pouring the cans; close the electric butterfly valve 11 after the pouring is completed; the smoke and dust generated by the pouring cans are processed by the dust removal system through the dust removal pipe 3 and then discharged up to standard.

Embodiment 3

[0057] On the basis of Embodiment 2, the front and rear walls of the semi-hermetic cover 5 of the present embodiment are provided with openings for entering and exiting the molten iron tank 9 .

[0058] Two openings, one is used for the entry and exit of the surplus steel return car 4, and the other is used for the operation of pouring cans, which can simultaneously operate the two molten iron tanks 9 that need to be poured, saving time. And different operations are carried out in two directions, which also saves the utilization of the space.

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PUM

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Abstract

The invention discloses a molten iron reladling system and method based on an excess steel return line. The molten iron reladling system comprises a charging bay and a furnace bay which are arranged in parallel and an excess steel return vehicle track connected with the charging bay and the furnace bay; the excess steel return vehicle track is provided with an excess steel return vehicle; the excess steel return vehicle track in the charging bay is provided with the molten iron reladling system; the molten iron reladling system comprises a dust treatment device and a weighing device, wherein an empty molten iron ladle is transported to the molten iron reladling system by the excess steel return vehicle so as to be weighed; the dust treatment device is started to reladle molten iron after weighing; after reladling is completed, weighing is performed again and the weight of the reladled molten iron is calculated according to two-time weighing; and the excess steel return vehicle drives out of the molten iron reladling system after weighing. The molten iron reladling system has favorable economic and social benefits for both new steelmaking workshops and reconstruction workshops so as to be well worthy of popularization and application in the future upgrading and reconstruction projects of steelmaking plants.

Description

technical field [0001] The invention relates to the development of a process method and device for pouring molten iron tanks based on the return line of surplus steel. The existing steel return vehicle in the workshop is used as the carrier of the molten iron tanks used in the molten iron line to realize the online pouring of molten iron tanks, which belongs to the field of steelmaking technology . Background technique [0002] The establishment of hot metal pouring facilities is mainly based on the following two factors: [0003] Mismatch between blast furnace molten iron tanks and steelmaking molten iron tanks; [0004] The workshop adopts the "one-pot system" molten iron supply to solve the problem of combining molten iron tanks. [0005] The hot metal pouring facilities are routinely arranged in the feeding bay of the workshop, which not only occupies the usable area of ​​the feeding bay, but also requires an increase in the one-time investment of the molten iron weigh...

Claims

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Application Information

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IPC IPC(8): B22D41/12C21C5/00
CPCC21C5/00B22D41/12
Inventor 崔荣峰钱永辉
Owner HUATIAN NANJING ENG & TECH CORP MCC
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