Drying furnace device of gasifier capable of automatically adjusting temperature

A drying furnace device of a gasifier capable of automatically adjusting temperatures, comprising the gasifier and a drying furnace assembly, wherein the gasifier comprises a furnace wall, a top of the furnace wall is provided with a coal inlet, a top side of the furnace wall is provided with a coal gas outlet, and an outside of a bottom of the furnace wall is provided with a cooling layer,

• wherein:
• the drying furnace assembly comprises a drying-furnace feeding device, a temperature detection device and an automatic control valve, wherein the drying-furnace feeding device is detachably installed inside the coal inlet, the automatic control valve is detachably installed at one end of the coal gas outlet away from the furnace wall, the temperature detection device is installed an outside of a middle of the furnace wall, the temperature detection device is connected with the automatic control valve through a heat-resistant hose, an inside of the heat-resistant hose is filled with liquid and the liquid has a thermal expansion cooling effect and a high temperature resistance;
• the temperature detection device is adapted for transmitting temperature inside the gasifier to the liquid inside the heat-resistant hose, and the automatic control valve is automatically controlled to open and close according to a temperature of the liquid through an expansion of the liquid when heated;
• the drying-furnace feeding device comprises a fixed ring, the fixed ring is movably connected with the coal inlet, a steam pipe is inserted in a middle of the fixed ring, a bottom of the steam pipe penetrates into an inside of the furnace wall, a top of the steam pipe is connected with a high-temperature steam conveying device, a protective sleeve is sleeved outside an upper half of the steam pipe, a control sleeve is sleeved outside a lower half of the steam pipe, a top of the control sleeve is fixedly provided with a spring A, and a top of the spring A is fixedly connected with a top inner wall of the protective sleeve, and outsides of the control sleeve and the steam pipe are both provided with air-outlet holes;
• when the spring A is relaxed, the air-outlet holes on surfaces of the steam pipe and the control sleeve are not coincident, but when the spring A is extended, the air-outlet holes on the surfaces of the steam pipe and the control sleeve are coincident;
• when high-temperature steam is introduced into an inside of the gasifier through the steam pipe, air outlets of the steam pipe are completely blocked;
• air pressure inside the steam pipe gradually increases, and a bottom of the control sleeve moves downward under an influence of the air pressure until the air-outlet holes on the surfaces of the steam pipe and the control sleeve are coincident, the high-temperature steam is uniformly ejected from the air-outlet holes, so as to make everywhere inside of the gasifier all evenly contact with the high-temperature steam and make the everywhere inside of the gasifier evenly heated;
• and
• when the air pressure inside the steam pipe decreases, the control sleeve rises under an action of the spring A, the air-outlet holes close, and the air pressure inside the steam pipe gradually increases as above.