Automatic furnace-pressure control system for forging heating furnace

An automatic control system and forging heating technology, which is applied in the field of forging heating furnaces, can solve problems such as furnace pressure fluctuations, high-temperature flue gas discharge from the heating furnace, and energy waste, so as to save energy consumption, reduce exhaust gas temperature, and reduce noise Effect

Inactive Publication Date: 2015-09-16
HUBEI WEISHIKANG MACHINERY MFG
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Problems solved by technology

The furnace pressure of the forging heating furnace will change at any time with the switching of large and small fires. If the smoke exhaust motor keeps rotating at a certain speed, a large amount of high-temperature flue gas from the heating furnace will be discharged out of the furnace, a large amount of heat will be lost, energy will be seriously wasted, and the furnace pressure will be caused. Fluctuation, affecting heating speed and heating quality

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  • Automatic furnace-pressure control system for forging heating furnace

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Embodiment Construction

[0008] Such as figure 1 As shown, the present invention includes a smoke exhaust fan 1 of a forging heating furnace, which also has an automatic control system for furnace pressure. The automatic control system for furnace pressure includes a pressure detector 2, a gas flow meter 3 and a PLC controller 4. The pressure detector 2 is installed In the furnace body of the forging heating furnace, the gas flow meter 3 is installed in the exhaust pipe of the forging heating furnace, the signal output end of the pressure detector 2 and the signal output end of the gas flow meter 3 are connected to the signal input end signal of the PLC controller 4 connection, the signal output end of the PLC controller 4 is connected to the frequency converter 1-1 of the smoke exhaust fan 1.

[0009] Working principle: First, the pressure detector 2 and the gas flow meter 3 respectively detect the pressure in the furnace and the flow of the exhaust pipe, and the pressure signal and the gas flow sig...

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Abstract

The invention provides an automatic furnace-pressure control system for a forging heating furnace. A pressure detector (2) is mounted in the furnace body of the forging heating furnace, a gas flowmeter (3) is mounted in a smoke exhaust duct of the forging heating furnace, the signal output end of the pressure detector (2) and the signal output end of the gas flowmeter (3) are in signal connection with a signal input end of a PLC controller (4), and the signal output end of the PLC controller (4) is in signal connection with a frequency converter (1-1) of a smoke exhaust fan. The automatic furnace-pressure control system for the forging heating furnace has the advantages that due to the adopted technical scheme, a control signal is transmitted to the frequency converter (1-1) of the smoke exhaust fan so that the frequency converter (1-1) regulates the rotating speed of the smoke exhaust to control the smoke exhaust amount, and therefore, the purposes of stabilizing the furnace pressure, saving the energy consumption, reducing the smoke exhaust temperature and reducing noise are achieved.

Description

technical field [0001] The invention relates to the field of forging heating furnaces, in particular to an automatic furnace pressure control system for forging heating furnaces. Background technique [0002] At present, the heating furnace is an important production equipment in the hot rolling production process of steel materials, which is used to heat the billet to the forging temperature. The furnace pressure of the forging heating furnace will change at any time with the switching of large and small fires. If the smoke exhaust motor keeps rotating at a certain speed, a large amount of high-temperature flue gas from the heating furnace will be discharged out of the furnace, a large amount of heat will be lost, energy will be seriously wasted, and the furnace pressure will be caused. Fluctuations affect the heating speed and heating quality. Contents of the invention [0003] The object of the present invention is to aim at that the current heating furnace is an impo...

Claims

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Application Information

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IPC IPC(8): C21D9/70C21D11/00
Inventor 郑平
Owner HUBEI WEISHIKANG MACHINERY MFG
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