A continuous casting secondary cooling water nozzle system and its control method
A control method and secondary cooling water technology, which is applied in the direction of manufacturing tools, casting equipment, casting melt containers, etc., can solve the problems of easy blockage of water cooling nozzles, and achieve the effects of preventing blockage and large cooling range
Active Publication Date: 2018-12-18
MCC CAPITAL ENGINEERING & RESEARCH
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Problems solved by technology
[0004] In order to solve the problem that the water cooling nozzles in the existing continuous casting equipment are easily blocked, the present invention provides a continuous casting secondary cooling water nozzle system and its control method. The continuous casting secondary cooling water nozzle system and its control method can effectively control the secondary cooling water, The pressure closed-loop control can effectively control the cooling water circuit to ensure that the unblocked nozzles are in good working condition
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[0028] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0029] A continuous casting secondary cooling water nozzle system, including a cooling water main pipeline 1, a control unit 2 and a plurality of cooling sub-areas, each of which includes a cooling water branch line 3, a pressure transmitter 8, a reversing valve 10 and A plurality of nozzles 14, the reversing valve 10 contains an inlet and two outlets, in each of the cooling zones, the pressure transmitter 8 is arranged on the cooling water branch line 3, and one end of the cooling water branch line 3 is connected to the cooling water The main pipeline 1 is connected, the other end of the cooling water branch line 3 is connected to the inlet of the reversing valve 10, and the plurality of nozzl...
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The invention provides a continuous casting secondary cooling water nozzle system and a control method thereof. The continuous casting secondary cooling water nozzle system comprises a cooling water main pipeline (1), a control unit (2) and multiple cooling zones. Each cooling zone comprises a cooling water branch pipeline (3), a pressure transmitter (8), a reversing valve (10) and multiple nozzles (14), wherein the pressure transmitter (8) and the reversing valve (10) are connected with the control unit (2), and the control unit (2) can control two outlets of the reversing valve (10) to be alternately opened. According to the continuous casting secondary cooling water nozzle system and the control method thereof, large nozzles can be selected, due to the fact that the effective aperture of the nozzles becomes large, blockage particles allowed to be pass also become large, and therefore the blocking probability of the nozzles is lowered, and the casting blank quality problem caused by nozzle blocking is reduced.
Description
technical field [0001] The invention relates to the field of continuous casting equipment in steel production, in particular to a continuous casting secondary cooling water nozzle system and a continuous casting secondary cooling water control method. Background technique [0002] The continuous casting process is actually a solidification and heat transfer process of high-temperature molten steel transforming into a solid state. Therefore, the solidification and heat transfer process of the slab plays a crucial role in the quality of the surface cracks, internal cracks, and bulging of the slab. Water is mostly used as the cooling medium in the solidification heat transfer process of the slab, which means that in a sense, the continuous casting technology is a water cooling technology, that is, the high temperature molten steel is solidified into a solidification heat transfer process of the slab through cooling water. process. The water-cooling system is composed of many n...
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IPC IPC(8): B22D41/60
CPCB22D41/60
Inventor 曹学欠陈卫强邱明罡
Owner MCC CAPITAL ENGINEERING & RESEARCH