Blast Furnace Feed Control Method and Control Device
A technology of feeding control and blast furnace, applied in program control, measuring device, computer control, etc., can solve the problems of limited number of material level monitoring gauges, high cost, low positioning accuracy of material head and material tail, etc.
Active Publication Date: 2016-08-24
ELECTRON CO LTD
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Problems solved by technology
The disadvantage is that it needs more additional equipment and high cost, and because of the limited number of installed material level monitors, the positioning accuracy of the material head and material tail is low
Method used
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[0054] The following embodiments of the present invention provide a blast furnace feeding control method, which can reduce costs and improve precision.
[0055] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0056] figure 1 Shown is the flow chart of the blast furnace feed control method of the embodiment of the present invention, as figure 1 As shown, the method includes:
[0057] Step 101, preset the opening sequence of multiple hopper scales.
[0058] Step 102 , each time an allow-opening command is received, a ho...
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The embodiment of the invention discloses a blast furnace feeding control method. The blast furnace feeding control method includes the steps that a hopper scale is started according to a preset starting sequence every time a start allowing command is received, and the material head time starts to be kept; the longest material head time is selected from values of the material head time of the multiple started hopper scales to serve as the longest material head time; the empty hopper scales are stopped, and the material time starts to be kept; the shortest material tail time is selected from values of the material tail time of the multiple stopped hopper scales to serve as the shortest material tail time; if a feeding tank is not empty, the value of the longest material head time is compared with a first threshold, if the value of the longest material head time is smaller than the first threshold, a conveyor belt is kept running, and if the value of the longest material head time is equal to or larger than the first threshold, the conveyor belt is stopped from running, and all the material head time keeping and material tail time keeping are stopped. The position of raw materials on the conveyor belt can be known without any additional detection device, and cost is reduced.
Description
technical field [0001] The invention relates to the field of industrial control, in particular to a blast furnace feeding control method and control device. Background technique [0002] Steel is the mainstay of the national economy and the material guarantee for the country's survival and development. The smelting of steel is carried out in the blast furnace, and the blast furnace feed refers to the raw materials input into the blast furnace smelting project. Raw materials mainly refer to coke and iron ore. [0003] During blast furnace smelting, iron ore and coke are loaded from the top of the furnace, and preheated air is blown in from the tuyeres located at the lower part of the furnace. The carbon in the coke is burned with the oxygen in the blown air at high temperature to generate carbon monoxide, and the oxygen in the iron ore is removed during the ascension process in the furnace, thereby reducing to obtain iron. The raw materials needed by the blast furnace in t...
Claims
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IPC IPC(8): G01G19/38G01G19/32G05B19/042
Inventor 郭维河刘建华曹金坤闫新宏崔青蔡悝苏毅周振锋秦昌国李玉平李爱军颜炳正孙亚宁亓波
Owner ELECTRON CO LTD