Pressure control system and method
A technology of pressure control and pressure, which is applied in the field of pressure control system, can solve problems such as furnace fire overflow and poor temperature uniformity of blank materials, so as to prevent excessive adjustment of furnace pressure and improve the effect of poor temperature uniformity
Inactive Publication Date: 2015-08-26
慈溪市瑞天机械设备有限公司
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Problems solved by technology
[0007] The technical problem to be solved in the present invention is to provide a pressure control system and method in view of the current state of the art, which can effectively improve the problem of poor temperature uniformity of the billets, and prevent the furnace fire from overflowing due to excessive adjustment of the furnace pressure exception
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[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0028] Such as Figures 1 to 3 As shown, in this embodiment, the pressure control system 1 includes: a blank position sensor 11, a furnace door control unit 12, a furnace door detection unit 13, a furnace pressure dynamic setting module 14, a furnace pressure sensor 15, a furnace Fire overflow detection unit 16 and furnace pressure control module 17.
[0029] The billet position sensor 11 (in the heating furnace) is close to the discharge furnace door 21 of the heating furnace 2 to obtain the blank position of the blank 3 (such as steel billet or steel plate) from the discharge furnace door 21 . The furnace door control unit 12 controls the opening and closing time and state of the discharging furnace door 21 according to the billet position, and of course, can also control the opening and closing time and state of the feeding furnace door (n...
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The invention discloses a pressure control system and method. The pressure control system and method are characterized in that the pressure control system comprises a furnace door detection unit used for obtaining furnace door state information of a discharge furnace door, a dynamic pressure setting module which sets the first pressure compensation value according to the furnace door state information, a pressure sensor which is arranged close to the discharge furnace door so as to obtain actual pressure, a furnace fire outflow detection unit which faces the discharge furnace door, is used for obtaining outflow furnace fire information and calculates the second pressure compensation value according to the outflow furnace fire information and the actual pressure, and a pressure control module which calculates the pressure compensation value according to the first pressure compensation value, the second pressure compensation value, the actual pressure and the pressure set value and regulates the opening degree of a waste gas regulating valve of a heating furnace according to the pressure compensation value so as to regulate the pressure in the heating furnace.
Description
technical field [0001] The invention relates to a pressure control system and method. Background technique [0002] In the existing hot-rolling process, such as the hot-rolled steel strip process, due to the special configuration of the heating furnace combustion equipment, the billets are not evenly heated in the soaking zone when they are waiting to be discharged, and the cold air outside the heating furnace is not uniform. Drilling into the heating furnace during the discharge process is more likely to cause poor temperature uniformity in the width direction of the billet, and then make the billet in the hot rolling process, due to the different hardness of the material caused by the temperature difference on both sides of the width, make the billet The entire length of the material after rolling is curved or / and arc-shaped, and affects the control accuracy of the billet width. In addition, if the furnace pressure adjustment of the heating furnace is too large, it will c...
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IPC IPC(8): C21D11/00B21B37/00
Inventor 孙成纲
Owner 慈溪市瑞天机械设备有限公司