Improved screw feeder of raw biomass material incinerator

Abstract

The invention relates to a feeding device of an incinerator, in particular to an improved screw feeder of a raw biomass material incinerator, which is capable of feeding continuously while preventing tempering effectively so as to guarantee safety in production. The improved screw feeder comprises a feeder casing and a screw shaft, wherein the feeder casing is provided with a feed inlet, a discharge outlet of the feeder casing is connected with a discharge hopper, and the screw shaft is driven by a drive device and penetrates through the feeder casing. The improved screw feeder is characterized in that a plugging section is arranged at the end of the discharge outlet of the feeder casing, a portion of the screw shaft located at the plugging section is provided with no screw blades, the discharge hopper is arranged above the discharge outlet and provided with a damper rotating shaft, and a damper is mounted at the discharge outlet through the damper rotating shaft which is further connected with a damping device.

Description

technical field [0001] The invention relates to a feeding device for an incinerator, in particular to a feeding device for a biomass raw material incinerator, in particular to an improved screw feeder for a biomass raw material incinerator. Background technique [0002] Biomass fuel has a large calorific value, high purity, and does not contain sulfur and phosphorus, so it will not produce harmful substances such as sulfur dioxide and phosphorus pentoxide, so it will not cause acid rain like traditional petrochemical energy, and it will not corrode the boiler, so it can Extend the life of the boiler. The screw feeder of existing biomass raw material incinerator, see figure 1 , the driving device 15 drives the screw shaft 17 to rotate through the transmission shaft 16, thereby transporting the biomass raw material put in from the feed port to the discharge port 19 and then entering the incinerator for incineration. The disadvantage is that the biomass raw material has a low ...

AI Technical Summary

Problems solved by technology

The screw feeder of existing biomass raw material incinerator, see figure 1 , the driving device 15 drives the screw shaft 17 to rotate through the transmission shaft 16, thereby transporting the biomass raw material put in from the feed port to the discharge port 19 and then entering the incinerator for incineration. The disadvantage is that the biomass raw material has a low ignition point and is easy to catch fire. The biomass raw material is loose, and the raw material can easily enter the discharge hopper directly from the discharge port, while the high-temperature flue gas or combustible gas generated in the incinerator may enter the feeder through the gap between the discharge port and the biomass raw material. It is sprayed inside and out to form a backfire, which may cause a fire in the slightest, or an explosion in the severe case, seriously affecting the safety of production.

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