Apparatus and corresponding method to produce biomass charcoal

Abstract

Apparatus to produce biomass charcoal (120) which can be inserted in a container whose section orthogonal to an axis (S) is subject to the specific application; the apparatus comprises an external casing (12, 12′), associated internally with at least a tubular body (14, 14′) located coaxial to create at least one interspace (16, 16′) for the passage of primary air (A1) in which at least a support plane (34) is housed able to support the biomass (100) and able to allow a flow of primary air (A1) to feed the biomass (100), the tubular body (14, 14′) has a pipe (55) for the passage of secondary air (A2) provided with a hole (15) in correspondence with its lower end and has exit means (22, 22′) of the secondary air (A2) disposed in correspondence with an upper end coordinated with a plate (24, 24′).

Description

FIELD OF THE INVENTION[0001]The present invention concerns an apparatus and method to produce and gasify or preserve biomass charcoal, that is, an apparatus and method suitable to produce the desired carbonization of a biomass according to the principle of micro-gasification and to thermally enhance the charcoal produced, by gasifying it, or to stabilize it by cooling it.[0002]The invention can also be used as an apparatus for heat generation, for example, for heating domestic or public spaces, for cooking food or other.[0003]Furthermore, the apparatus can be used as a part of heaters, boilers, fireplaces or other.BACKGROUND OF THE INVENTION[0004]The reaction of pyrolysis is known, which generates combustible gas and biomass charcoal, which is a carbon-rich solid residue, as a consequence of the heat transformation of a solid biomass.[0005]Micro-gasification apparatuses are known, in which the steps of drying and generating gas from the biomass take place in a controlled manner insi...

AI Technical Summary

Benefits of technology

The invention is a device that improves the combustion of liquid fuel by heating the secondary air before mixing it with the fuel. A plate helps create a stable flame that is controlled and of the desired size, maximizing the heat output. The device also regulates the position of a sliding body to improve the flow of the fuel. When the fuel is completely converted to charcoal, the sliding body prevents the charcoal from transforming into ash by saturating a toric ring with combustible gas. Overall, the device enhances the efficiency of the combustion process and creates more heat for use.

Problems solved by technology

Therefore, these apparatuses cannot be made with shapes other than cylindrical.

Furthermore, for the same reason, in the solution described in the above patent application, the flame has a very vertically elongated shape and hence does not allow a good heat transfer onto the surfaces to be heated.

Another disadvantage of apparatuses, known from the prior art document, is that they do not allow to preserve the biomass charcoal from the secondary gasification processes, and do not prevent the biomass charcoal from transforming into ash and dispersing great quantities of CO; nor do they guarantee optimum gasification of the biomass charcoal.

All these operations require the intervention of an operator at the right moment and can be inconvenient or even dangerous, given the presence of embers and high temperatures.

However, these apparatuses do not allow an efficient production of biomass charcoal and it is difficult to use them even for possible different applications.

Images