Pneumatic slag discharge valve with continuous automatic opening and closing

Abstract

The invention relates to a pneumatic slag discharge valve capable of continuously opened and closed automatically, which comprises a slag discharge valve, a driving mechanism, a position sensor unit, a support and a central control chamber. The slag discharge valve comprises a valve body and a movable gate plate, the valve body is provided with a channel, a flow guiding hole is arranged on the gate plate, and a sealing device is disposed between the gate plate and the valve body; a furnace bottom flange is disposed on one end surface of the channel, and a pipe flange is disposed on the other end surface of the channel; the driving mechanism comprises a compressed air source, an electromagnetic reversing valve, a cylinder, a piston arranged in the cylinder and a piston rod; the cylinder is divided into a first air chamber and a second air chamber by the piston, a first air passage is communicated with the first air chamber, and a second air passage is communicated with the second air chamber; and the position sensor unit comprises a first position sensor, a second position sensor and a positioning ring. The pneumatic slag discharge valve resolves the technical problem that fused slag cannot be discharged and a valve cannot be automatically opened or closed. Besides, opening and closing of the valve can be automatically controlled continuously, and opening and closing time of the valve can be detected in real time.

Description

technical field [0001] The invention relates to a slag discharge valve which can regularly and automatically discharge molten ash. Background technique [0002] The gasifier of pulverized coal dry direct gasification system needs to automatically discharge molten ash from the bottom regularly, but there is no suitable valve to realize continuous and automatic valve opening and closing state control. Contents of the invention [0003] The object of the present invention is to provide a pneumatic slag discharge valve that can be continuously and automatically opened and closed, which can realize continuous and automatic control of the opening and closing of the valve, and can detect the opening and closing time of the valve in real time, solving the problem that the existing valve cannot be used The technical problems of discharging molten ash, failure to realize automatic opening and closing of valves, and inconvenient detection. [0004] Technical solution of the present ...

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Problems solved by technology

[0003] The object of the present invention is to provide a pneumatic slag discharge valve that can be continuously and automatically opened and closed, which can realize continuous and automatic control of the opening and closing of the valve, and can detect the opening and closing time of the valve in real time, solving the problem that the existing valve cannot be used Discharging molten ash, unable to realize automatic opening and closing of valves, and inconvenient detection technical problems

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