Automatic furnace-pressure control system for forging heating furnace

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...

AI Technical Summary

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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