Control method for meeting tapping interval during inserting blank materials in stepping heating furnace
A control method and heating furnace technology, applied in heat treatment furnaces, rolling mill control devices, furnaces, etc., can solve problems affecting the production rhythm of hot rolling production lines, and achieve the effect of meeting the tapping rhythm and ensuring normal operation
Active Publication Date: 2014-11-05
BAOSTEEL ENG & TECH GRP
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Problems solved by technology
[0008] When the billet "insert" operation occurs, when the billet 3A in the 3# furnace is discharged, there is only one billet 4A in the middle to discharge the billet 5A. At this time, because the 3# furnace is stepping If the limit of the beam is limited, the situation of "waiting for steel" in the rolling mill will occur, which seriously affects the production rhythm of the hot rolling production line
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[0047] The control method of the present invention that satisfies the rhythm of billet tapping in a walking heating furnace includes a walking beam for tapping the billet, a pair of first laser detectors arranged on the side wall of the heating furnace discharging end, and a process control system for a hot rolling production line. and an electrical control system, the method comprises the steps of:
[0048] Step 1, such as figure 1 As shown, a pair of second laser detectors DLA2 are arranged in parallel behind the first laser detector DLA1, and the first laser detector DLA1 and the second laser detector DLA2 detect the position of the blank at the discharge port 1 of the heating furnace and The detection signal is input to the electrical control system, the distance between the first laser detector DLA1 and the second laser detector DLA2 is D, and Step≤D≤W min , where Step is the step length of the walking beam, W min is the narrowest blank width;
[0049] Step 2:...
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The invention discloses a control method for meeting tapping interval during inserting blank materials in a stepping heating furnace. The technical scheme of the method comprises that: a pair of second laser detectors is added onto the rear of a first laser detectors arranged on a discharge end of the stepping heating furnace; when inserting the blank materials, a process control system and a electric control system of a hot rolling production line are adopted for determining and controlling the two laser detectors to be switched, such that a discharge position of the blank material inserting offsets a step length, ie., one stepping period of a walking beam is decreased, so as to meet a rolling rhythm requirement of a rolling mill. In the prior art, the rolling mill maybe wait for steel during a discharge operation of the blank material inserting in the heating furnace. According to the method provided by the present invention, generation of the case in the prior art is effectively avoided, and the tapping interval of the blank material inserting in the heating furnace is met, normal operation of the hot rolling production line is guaranteed.
Description
technical field [0001] The invention relates to a control method that satisfies the tapping rhythm of a billet inserted in a walking heating furnace. Background technique [0002] At present, the hot-rolling production lines of metallurgical enterprises all adopt the sequential method of steel loading for the heating furnace group, that is, in the normal production process, the process control system (secondary control system) of the hot-rolling production line follows the arrangement sequence of each heating furnace (1#-2#-3#-4#-1#) sequentially allocate the furnace number for each billet in the production plan, the following table is for sequential charging, 1A to 16A are billets, [0003] 4# Furnace 3# Furnace 2# Furnace 1# Furnace 4A 3A 2A 1A 8A 7A 6A 5A 12A 11A 10A 9A 16A 15A 14A 13A [0004] After the charging operation is completed, the heating furnace transfers the billet step by step from the charging side to the disch...
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IPC IPC(8): C21D9/70B21B37/00
Inventor 张久林谷硕金炜
Owner BAOSTEEL ENG & TECH GRP