Biomass fuel blast heater with cooling function

Abstract

The invention relates to a biomass fuel blast heater with a cooling function. An air heating unit is modified so that air can be gradually heated by multiple heating spaces, biomass fuel combustion heat can be better absorbed, and the effective utilization rate of heat energy generated by combustion of biomass fuel is increased. By modifying the structure of a flame bridge and additionally arranging a cooling unit, two sets of lifting mechanisms, a temperature sensor and a trigger module, working states of the lifting mechanisms and an oxygen inlet valve are controlled by utilizing external trigger signals and detection signals input by the temperature sensor, namely, the lifting mechanisms are used for controlling the fuel combustion total amount and height, so that combustion flames of part of or all of fuel are close to or away from the air heating unit. The oxygen inlet valve is controlled to achieve oxygen supply control over combustion, and thus the air outlet temperature is regulated and controlled. The cooling function is further achieved, the using requirements are better met, and air can be heated to the same temperature with less biomass fuel.

Description

technical field [0001] The invention relates to a hot blast stove, in particular to a cooling biomass fuel hot blast device. Background technique [0002] Hot air stove is a kind of chemical energy or electric energy of conventional energy is converted into thermal energy, so that the energy is supplied to the corresponding equipment in the form of hot air, often used in dryers, dryers, molding machines and heating. [0003] Biomass fuel refers to the burning of biomass materials as fuel, generally mainly agricultural and forestry wastes (such as straw, sawdust, bagasse, rice bran, etc.), and when biomass fuel is used as fuel, agricultural and forestry wastes need to be used as raw materials, and after It is a new type of clean fuel that can be directly burned in various shapes (such as lumps, granules, etc.) through crushing, mixing, extrusion and drying. [0004] Therefore, for the sustainable development of society, biomass fuels have been widely used as fuels for hot bl...

AI Technical Summary

Problems solved by technology

However, the existing biomass fuel hot blast stoves cannot regulate the outlet air temperature, resulting in overheating or too low outlet air temperature, which cannot meet the needs of use well, and the heat energy generated after the combustion of biomass fuel cannot be fully utilized for Heating the air, causing loss of heat energy and even waste of fuel

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