Combustible smoke-free briquette

Abstract

A briquette includes an upper briquette part, and a lower briquette part under the upper briquette part; both of the upper and the lower briquette parts are made of completely carbonized cinders of burnt shells of grains and small pieces of grass and wood, and are formed by compressing and drying a mixture of the cinders and incombustible adhesives such that the briquette won't fall apart easily after it is burnt; when the upper briquette part is positioned on top of the lower briquette part, a room will be formed between the upper and the lower parts, in which kindling materials will be held and burn, and the upper briquette part propped up off a ground by the lower briquette part; several air passages extend through the briquette from lateral sides of the briquette to the room for the kindling materials.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a combustible smoke-free briquette, more particularly one, which won't dirty people's hands or the places on which the briquette is positioned, and which will burn from the inside outwards, and produce more powerful flames, and which won't produce strange odors or black smoke, and which has excellent cohesion, and won't change shape or fall apart after burnt, and which won't produce such flames as to be easily noticed by people a distance away, thus suiting militaries. [0003] 2. Brief Description of the Prior Art [0004] Although electricity and gas are convenient to use and easily accessible in modern societies, coals and charcoals, which were the major fuels in earlier time when electricity and gas weren't available, still can't be completely replaced. [0005] Conventionally, charcoals are made by means of burning wood in a closed kiln. However, because wood materials for charcoals a...

AI Technical Summary

Benefits of technology

[0009] The combustible smoke-free briquette of the invention includes an upper briquette part, and a lower briquette part joined to the upper part. Both of the upper and the lower parts are made of completely carbonized cinders of burnt shells of grains and small pieces of grass and wood, and they are formed by means of compressing and drying a mixture of the carbonized cinders and incombustible adhesives such that the briquette won't fall apart easily after it is burnt; a room is provided between the upper and the lower parts, in which kindling materials will be held and burn, and the upper briquette part is propped up off the ground by the lower briquette part. Several air passages extend through the briquette from lateral sides of the briquette to the room for the kindling materials. The briquette won't dirty people's hands or the places on which the briquette is positioned. The briquette will burn from the inside outwards, and the flames will be more powerful. The briquette won't produce strange odors or black smoke because it is made of completely carbonized cinders. The briquette has excellent cohesion, and won't fall apart after burnt. People a distance away won't notice the briquette when the briquette is burning, and the briquette can be used by militaries.

Problems solved by technology

Although electricity and gas are convenient to use and easily accessible in modern societies, coals and charcoals, which were the major fuels in earlier time when electricity and gas weren't available, still can't be completely replaced.

However, because wood materials for charcoals are different in sizes, and are positioned in different places in a kiln, it is highly probable that some of the charcoal products are incompletely carbonized, and contain undesirable substances such as lignin and oil.

Consequently, black smoke will be produced because of incomplete burning of unsaturated hydrocarbons when charcoals are burnt.

And, because coals contain sulphur and phosphorus, strange odors and poisonous gas will be produced when coals are burnt.

Common briquettes are made by means of compressing a mixture of clay and waste such as coal cinders and coal powder, and they aren't formed with any particular shape to be convenient to use.

To sum up, conventional coals and charcoals have the following disadvantages: coals and charcoals will dirty people's hands and the places on which they are positioned; coals and charcoals only can be burnt from the outside inwards, and they can't start to burn easily, and the flames can't be easily controlled; a lot of ashes will be produced after coals and charcoals are burnt, therefore it will take a lot of labor and time to clean up.

Images