Hot blast stove control system and control method thereof
A technology of control system and control method, which is applied in the field of control systems, can solve the problems of poor air temperature stability of hot blast stoves and the inability to realize automatic control of hot blast stoves, and achieve the effect of improving stability and realizing automatic control
Active Publication Date: 2014-03-26
ANHUI JINSHANG MACHINERY MFG CO LTD
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Problems solved by technology
Therefore, the control system usually controls the hot blast stove through manual operation, which cannot realize the automatic control of the hot blast stove, resulting in poor stability of the hot blast stove air temperature
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[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to 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.
[0021] figure 1 It is a schematic diagram of the structure of the hot blast furnace, such as figure 1 As shown, the hot blast stove includes a furnace 1 and a bran storage barrel 9, and the furnace 1 is provided with a supplementary blower one 2, a supplementary blower two 3, a supplementary blower three 4, a smoke exhaust blower 8, an oxygen supply blower 7, an ash valve 6 and The ash blower 5, the bran storage barrel 9 is provided with a bran inlet fan 10, a bra...
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The invention provides a hot blast stove control system and a control method thereof. The hot blast stove control system comprises a human-machine interface and a temperature sensor for detecting the temperature of an air outlet of a hot blast stove. A communication interface of the human-machine interface is connected with a communication interface of a programmable logic controller, measuring signals of the temperature sensor are input to an analog quantity mixing module to be subject to analog-to-digital conversion and then input to the programmable logic controller, and the programmable logic controller outputs control signals according to the input signals to control the hot blast stove to run. According to the hot blast stove control system and the control method of the hot blast stove control system, automatic control of the hot blast stove is achieved, closed-loop control of the hot blast stove is achieved through a PID calculating module according to a measured temperature of the temperature sensor, and stability of the air temperature of the hot blast stove is improved.
Description
technical field [0001] The present invention relates to a control system, in particular to a hot stove control system and a control method thereof. Background technique [0002] A hot blast stove is a device that provides stable air temperature. It is often used in drying devices and metal smelting. In order to achieve stable air temperature, it is necessary to control the combustion process of the hot blast stove. The existing hot blast stove control usually adopts logic control such as instrument , PLC, etc., in these monitoring methods, it is often necessary to output command signals to the control instrument through traditional mechanical buttons, and perform corresponding control according to the output on the mechanical buttons. Therefore, the control system usually controls the hot blast stove through manual operation, which cannot realize the automatic control of the hot blast stove, resulting in poor stability of the blast temperature of the hot blast stove. Conte...
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IPC IPC(8): F24H9/20
Inventor 杨锴
Owner ANHUI JINSHANG MACHINERY MFG CO LTD