Heating furnace door lifting hydraulic control system

• Main Author: XIA ZHIBIN
• Format: Patent
• Language: Chinese; English
• Published: 22.07.2022
• Subjects: BLASTING; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR; FLUID-PRESSURE ACTUATORS; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS; HEATING; HYDRAULICS OR PNEUMATICS IN GENERAL; LIGHTING; MECHANICAL ENGINEERING; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; WEAPONS

The utility model provides a lifting hydraulic control system for a furnace door of a heating furnace. The lifting hydraulic control system comprises a hydraulic cylinder, a proportional valve, a balance valve and a reversing valve, a first oil port of the proportional valve is connected with an oil supply pipeline, a second oil port of the proportional valve is connected with an oil return pipeline, and a third oil port of the proportional valve is connected with a rodless cavity of the hydraulic cylinder; the balance valve is connected with a third oil port and a fourth oil port of the proportional valve; one end of the reversing valve is connected with a fourth oil port of the proportional valve, and the other end of the reversing valve is connected with a rod cavity of the hydraulic cylinder. According to the utility model, the flow of the oil supply pipeline can be continuously and proportionally controlled by utilizing the proportional valve, and the position, speed and force of the hydraulic cylinder c