Backfire preventing fireplace

Abstract

The invention discloses a backfire preventing fireplace which can solve the backfire problem of a real fire fireplace and prevent backfire of open fire in a furnace of the real fire fireplace during feeding. The backfire preventing fireplace includes a fireplace body and a feeding device; the furnace is arranged in the fireplace body and a material box with an airtight inner bin is arranged on theupper part of the fireplace body; the material box is arranged on the outer side of the furnace; the top of the material box is provided with a feeding inlet and an airtight cover plate used to sealthe feeding inlet; the bottom of the material box is provided with a discharging hole which has a decreasing cross-section area; the feeding device for feeding materials to the furnace is arranged below the material box and includes a frame inside the fireplace body, a feeding drum arranged on the frame and a feeding packing auger rotationally arranged in the feeding drum; a feeding hopper is arranged on the outside surface of the feeding packing auger; the material box is arranged above the feeding hopper; and the discharging hole is tightly connected with an inlet of the feeding hopper.

Description

technical field [0001] The invention relates to a real fire fireplace, in particular to a backfire prevention fireplace. Background technique [0002] At present, real fire fireplaces are generally heated and ignited, that is, the biomass particles are heated by the heating rod, so that the fuel is smoldering to open burning (open flame); the biomass particles are usually fed by a feeding system. The feeding system of the current real fire fireplace is usually set above the furnace, which uses a funnel bin, and the lower part of the funnel bin communicates with the furnace through a feeding channel; when actually feeding, the biomass particles are poured into the funnel bin, Under the action of its own weight, the biomass particles gradually fall into the furnace along the feeding channel for combustion. At present, there are the following deficiencies in the real fire fireplace: First, during the combustion process of the furnace, the open flame in the furnace is easy to p...

AI Technical Summary

Problems solved by technology

At present, there are the following deficiencies in the real fire fireplace: First, during the combustion process of the furnace, the open flame in the furnace is easy to produce a tempering problem through the feeding channel during the continuous feeding process (the tempering problem refers to the open flame in the furnace passing through the feeding channel. Extend into the silo, causing the biomass pellets in the silo to catch fire)

Second, the particle powder (ash slag) produced by the combustion of biomass particles in the furnace cannot be separated in time, which affects the combustion quality of biomass particles

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