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6 Unmatched Core Advantages of Electro-hydraulic Slide Gate Valve for Raw Coal Bunker Discharging

The electro-hydraulic slide gate valve is a critical discharging control device widely used in raw coal bunkers, chutes and bulk material conveying systems of thermal power plants and metallurgical enterprises. It undertakes the tasks of material cut-off, flow control and intermittent blanking. Cooperated with arch breaker machine and silo wall flow aid equipment, it builds a complete silo feeding and anti-blocking system to ensure stable operation of coal conveying pipelines.


1.Stable Electro-hydraulic Driving, Powerful Thrust
Different from manual and pneumatic gate valves, the electro-hydraulic slide gate valve adopts integrated electro-hydraulic push rod drive. It provides large and stable driving force, which can effectively push the gate plate even if sticky coal accumulates at the discharge outlet. The valve avoids jamming caused by viscous bulk materials and adapts to heavy-load working conditions of coal bunker discharging.

2.Simple Welded Structure, Convenient Daily Maintenance
The valve body adopts integral carbon steel welded structure with compact layout and fewer vulnerable parts. There is no material storage groove inside the flow passage, greatly reducing material deposition. Operators can quickly complete disassembly, inspection and replacement of sealing components on site. Compared with complex valve equipment, it lowers long-term maintenance costs for power plant production lines.

3.Reliable Sealing Performance to Prevent Material Leakage
The electro-hydraulic slide gate valve is equipped with optimized sealing structure. When the gate is fully closed, it effectively blocks raw coal, coal powder and dust leakage. It can maintain stable sealing effect under long-term alternating load. The sealing assembly supports customized hard seal or soft seal schemes according to material humidity and abrasion characteristics.

4.Support Automatic Control and Remote Operation
The electro-hydraulic driving system can be connected with PLC and DCS automatic control system. Operators can realize remote opening, closing and position adjustment of the slide gate valve. It supports linkage operation with silo blockage clearing equipment, coal feeders and conveying belts, helping enterprises realize unattended automatic coal conveying.

5.Flexible Working Mode for Intermittent Discharging
This slide gate valve is designed for intermittent blanking scenarios under raw coal bunkers. It can keep stable at any opening position to adjust material flow rate. It matches well with chute blockage cleaning machine and arch breaker machine. When silo blockage occurs, the valve can quickly cut off material flow for equipment maintenance and blockage removal.

6.Strong Adaptability for Multiple Bulk Materials
The electro-hydraulic slide gate valve can handle raw coal, coke, mineral powder and other granular and powdery materials. It works steadily under high dust, high humidity and wide temperature range. It is suitable for rectangular and circular discharge outlets of conical bunkers, hyperbolic bunkers and rectangular bunkers.
If you need stable automatic discharging control equipment for raw coal silos, the electro-hydraulic slide gate valve is an ideal supporting device. Combined with our silo anti-blocking equipment series, it can thoroughly solve the problems of unstable blanking, silo blockage and material leakage. Contact our technical team for customized size and control scheme.

Electro-hydraulic slide gate valve used for raw coal bunker discharging and material flow control