JP3165490U - Device for feeding solid fuel into the combustion furnace - Google Patents

Abstract

An object of the present invention is to provide an apparatus for uniformly supplying a solid fuel from a hopper into a fuel supply cylinder into a combustion furnace to make the furnace temperature uniform. A fuel supply screw (7) movable by a gear motor (4), a small screw (24), and a universal joint (8) connecting a rotating part and a fixed stay (9) are attached, and the universal joint (8) comes out of the door into the combustion furnace (11). The solid fuel is fed into the fuel furnace 11 uniformly with respect to the grate surface by rotating the rotating part with the stirring plate 12 fixed to the upper part of the rotating part. When the damper 2 is closed, the door is closed and the solid fuel is closed. Stop supplying. [Selection diagram] Fig. 1

Description

  The present invention is an apparatus for continuously supplying solid fuel into a combustion furnace.

  The conventional apparatus for continuously supplying solid fuel into the combustion furnace is an apparatus for feeding the solid fuel into the combustion furnace from an external hopper via a supply screw.

  Further, when the fuel is supplied from the fuel supply mechanism into the combustion furnace as disclosed in Japanese Patent Publication No. 5-353417, the fuel is concentrated under the outlet of the fuel supply mechanism, so that the furnace temperature is not uniform.

  The problem to be solved by the present invention is a continuous fuel supply method, and an apparatus for uniformly supplying the fuel into the combustion furnace to make the furnace temperature uniform.

  In the present invention, the solid fuel is fed to the door by the fuel supply screw, and the solid fuel is fixed to the upper part of the rotating part by pushing the door fixed with a hinge and feeding it into the combustion furnace to reach the rotating part. The stirring plate rotates together with the rotating part to uniformly distribute the solid fuel to the grate area.

  Also, as an emergency extinguishing measure in the combustion furnace, an emergency fire extinguishing effect in the combustion furnace is enhanced by providing a nitrogen gas filling port from the fuel supply cylinder side.

  The rotating part is rotated by connecting the fuel supply screw movable by the motor and the stay connected to the rotating part with a universal joint, and the solid fuel is evenly distributed to the grate by the stirring plate fixed to the upper part of the rotating part. To distribute.

  By providing a small fuel supply screw at the top of the universal joint, solid fuel can be fed into the door.

  When abnormal combustion occurs in the combustion furnace due to an accident, disaster, etc., in order to collect the solid fuel before arrival at the rotating part, pull the spring at the end of the fuel supply cylinder to remove excess solid fuel in the fuel supply cylinder. The nitrogen gas passes through the fuel supply tube from the nitrogen filling port and sprays into the combustion furnace to extinguish the suffocation.

Overall view Close view of rotating part and upper part The vicinity of the rotating part and its upper part Open The vicinity of the rotating part and its upper part Open state and flow

  There is a hopper 1 for charging solid fuel 15, and a damper 2 is provided between the hopper 1 and the fuel supply cylinder 6. The amount of solid fuel 15 is limited by the damper 2 and the motor 3, and the fuel is supplied to the fuel supply cylinder 6. .

  The solid fuel 15 restricted and fed by the damper 2 includes a fuel supply screw 7 and a small screw 24 that are moved by a gear motor 4 in the fuel supply cylinder 6, and a universal joint that connects the fuel supply screw 7 and the small screw 24. By transmitting power by 8, the solid fuel 15 is continuously supplied to the door 13, so that the door 13 is pushed up and sent into the combustion furnace 11.

  The universal joint 8 that fixes the fuel supply screw 7 and the small screw 24 is fixed to the rotating portion 16 by the stay 9, whereby the power of the gear motor 4 is transmitted and the rotating portion 16 and the rotating portion 16 that rotate according to the screw 10. The solid fuel 15 is uniformly distributed in the combustion furnace 11 by the stirring plate 12 on the top.

  In preparation for an emergency, the damper 2, the motor 3, and the gear motor 4 interlock to stop the supply of the solid fuel 15, and the solid fuel 15 before opening the door 13 and arriving at the rotating unit 16 is the fuel supply screw 7 and the motor 3. By pulling down the spring 5 provided between them, the excess solid fuel 15 is returned into the fuel supply cylinder 6 and the supply into the combustion furnace 11 is stopped.

  In the unlikely event that fire enters the fuel supply cylinder 6, a nitrogen gas filling port 17 is provided, and an electromagnetic valve 18 is set between the nitrogen cylinder 19 and the nitrogen gas filling port 17. 18 is a device that opens the fuel supply cylinder 6 and extinguishes the fire in the combustion furnace 11 with suffocation.

  This apparatus is suitable for a water heater that produces hot water using solid fuel 15 obtained by processing waste as fuel. Not only fuel supply and safety, but also a water heater with high heat efficiency is helped by passing water, coolant, etc. inside the heat-resistant mortar 21 as shown in the flow of FIG.

DESCRIPTION OF SYMBOLS 1 Hopper 2 Damper 3 Motor 4 Gear motor 5 Spring 6 Fuel supply cylinder 7 Fuel supply screw 8 Universal joint 9 Stay 10 Screw 11 Combustion furnace 12 Stirring plate 13 Door 14 Hinge 15 Solid fuel 16 Rotating part 17 Nitrogen gas filling port 18 Solenoid valve 19 Nitrogen cylinder 20 Refractory mortar 21 Refractory mortar 22 Liquid 23 such as water Pipe 24 Small screw a Flow of solid fuel b Direction of operation of stirring plate c Flow of water

Claims (2)

  There is a universal joint that connects the fuel supply screw movable by the gear motor and the stay fixed to the rotating part, and the gear motor rotates the fuel supply screw to the stay via the universal joint to the stay. By rotating the fixed rotating part, the solid fuel coming out of the door can be uniformly fed into the furnace, and when the damper stops, the door closes and stops supplying the solid fuel   A solenoid valve located between the nitrogen gas inlet and the nitrogen gas cylinder in the event of abnormal combustion in the combustion furnace or fire entering the fuel supply cylinder by providing a nitrogen gas inlet in the fuel supply cylinder Is a device that feeds solid fuel into the combustion furnace, equipped with a device for opening and closing the fuel supply cylinder and combustion furnace and extinguishing the suffocation

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