Solid fuel supply device and method, pulverizer and boiler

• Main Authors: YAMAGUCHI SOTARO, ZAWAMASU GO
• Format: Patent
• Language: Chinese; English
• Published: 02.06.2020
• Subjects: AIR; BLASTING; COMBUSTION APPARATUS; COMBUSTION PROCESSES; FEEDING FUEL TO COMBUSTION APPARATUS; HEATING; LIGHTING; MECHANICAL ENGINEERING; METHODSOR APPARATUS FOR COMBUSTION USING FLUID FUELOR SOLID FUEL SUSPENDED IN; WEAPONS

The present invention relates to a solid fuel supply device and method, a pulverizer, and a boiler. In the solid fuel supply device and method, and the boiler, the operation of a rotary valve is suppressed to ensure stable supply of solid fuel. The device is equipped with a solid fuel supply pipe (63) for supplying solid fuel; a rotary valve (64) which is arranged in the solid fuel supply pipe (63) and has a rotating impeller (82); a detector (115) for detecting engaging-in of the rotary valve (64) ); and a control device (65), when the detector (115) detects the engaging-in, the control device enables the impeller (82) to rotate in the reverse direction at a predetermined time (Tb) and then rotate in the forward direction. 本发明涉及固体燃料供给装置及方法以及粉碎机、锅炉，在固体燃料供给装置及方法以及锅炉中，抑制回转阀的工作停止而确保固体燃料的稳定的供给。具备：固体燃料供给管(63)，供给固体燃料；回转阀(64)，设置于固体燃料供给管(63)且具有能够旋转的叶轮(82)；检测器(115)，检测回转阀(64)处的啮入；及控制装置(65)，当检测器(115)检测到啮入时该控制装置使叶轮(82)在以预先设定的规定时间(Tb)向反方向旋转之后向正方向旋转。