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Blast furnace multiple-material preparation system and method in concentrated weighing mode

A kind of material and blast furnace technology, which is applied in the field of multi-material preparation system of blast furnace, can solve the problems of increasing material preparation time, increasing the labor intensity of operators, and unable to guarantee the accuracy of mixing ratio, and improving production efficiency and production quality. Stacking and electrical equipment overload, the effect of a high degree of automation

Inactive Publication Date: 2015-09-16
GANSU JIU STEEL GRP HONGXING IRON & STEEL CO LTD
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Problems solved by technology

In this way, first: it will greatly increase the material preparation time; second: the accuracy of the ratio of various materials cannot be guaranteed; third: it will virtually increase the labor intensity of the operator
Such material preparation efficiency is far from meeting the requirements of blast furnace smelting

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  • Blast furnace multiple-material preparation system and method in concentrated weighing mode

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Embodiment Construction

[0026] Such as figure 1 As shown, a blast furnace multi-material preparation system in a centralized weighing mode includes two sets of symmetrical preparation systems. Take the system on the left side of the figure as an example, including a conveyor belt 6, and the upper part of the conveyor belt 6 is along its length There are four ore bins 3 in sequence. Between the ore bin 3 and the conveyor belt 6, there are a feeder 4 and an ore vibrating screen 5 in sequence. The feeder 4 and the ore vibrating screen 5 have the same number as the ore bin 3 For one correspondence, there is a centralized ore weighing hopper 8 below the end of the conveyor belt 6, and a conveyor belt motor 7 is connected to the conveyor belt 6; a coke bin 9 is provided on one side of the end of the conveyor belt 6, and coke bins 9 are sequentially provided below The vibrating screen 10 and the coke centralized weighing hopper 11; the system also includes a host computer 1 and a PLC controller 2. The PLC co...

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Abstract

The invention provides a blast furnace multiple-material preparation system and method in a concentrated weighing mode. The system comprises a conveyor belt; a plurality of ore bins are orderly arranged above the conveyor belt in the length direction; feeders and ore vibrating screens are orderly arranged up and down between the ore bins and the conveyor belt; the feeders and the ore vibrating screens are as many as the ore bins and correspond to the ore bins one to one; an ore concentrated weighing hopper is arranged under the tail end of the conveyor belt; the conveyor belt is connected with a conveyor belt motor. The material preparation system is capable of realizing concentrated weighing preparation of a plurality of types of ores, and also capable of guaranteeing the weighing accuracy of the ores, and therefore, the distribution requirements of complex blast furnace charge are met and the production efficiency and production quality of the blast furnace are effectively improved; besides, the system is high in automation degree; the labor intensity of the operating personnel is low; meanwhile, the system has relatively high safety, and the problems of material accumulation, electrical apparatus overload and the like can be avoided.

Description

Technical field [0001] The invention belongs to the technical field of ore weighing, and relates to a blast furnace multi-material preparation system and method in a centralized weighing mode. Background technique [0002] In the blast furnace under the centralized weighing method of the ore trough, the trough is generally composed of multiple ore bins and corresponding feeders, vibrating screens, belt conveyors, weighing hoppers and other equipment to complete the screening and weighing of ore . The coke and ore discharged from the coke bin and ore bin under the trough are transported to the centralized weighing hopper by the main conveying belt, and transported to the top of the furnace by the feeder according to the set batching bill program, and then the material is fed into the furnace. In recent years, due to the shortage of ore resources, iron ore companies have used more and more types of iron ore with different qualities. Taking Jiuquan Iron and Steel Plant as an exampl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21B7/18C21B5/00
Inventor 张凤娟王鸿强贾伟杰
Owner GANSU JIU STEEL GRP HONGXING IRON & STEEL CO LTD
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