37 results about "Wood gas" patented technology

A portable pellet fired heating element for mounting to a grill or stove and comprising a gravity fed pellet holder, a unitary tubular structure having a burner, an air intake and an exhaust chute. Fuel may be supplied to the pellet holder by various supply means such as a conveyer, ramp, scooped, held in bulk in a hopper, and like pellet supply structures and methods. Fuel is fed to the air-cooled insulated burner area onto a decomposer grate, which defines the primary combustion area and which is partially open to the atmosphere for air intake. An adjustable high-pressure flow of gas or vapor is introduced to the primary exhaust chute below the decomposer grate to create a low pressure flow above the grate and which upon ignition, cause flames to be pulled into the pellet mass on the grate. In operation, air from the primary air intake maintains hot charcoal in the primary combustion area, and the secondary combustion area provides a steady flow of wood gas that mixes with a predetermined or adjustable amount of air supplied by the secondary air intake to maintain the flame. The super heated gasses and any ash are provided to the grill or stove by means of the exhaust chute. For cleaning purposes, an electrical / mechanical device may be provided to move the decomposer grate or to provide a sudden burst of high gas pressure.

The invention discloses a biomass high-level cold wood burner and a use method thereof; the structure includes a furnace body and a feed inlet on the furnace body; the side wall of the furnace body is equipped with a wood gas upper outlet and a wood gas lower outlet, and the bottom of the furnace body is equipped with an ash-settling chamber; the ash-settling chamber is equipped with a plate-overturning ash discharge furnace disc, and the bottom of the ash-settling chamber is equipped with a carbon discharge port; the lower part of the furnace body is equipped with an ash discharge power mechanism; the ash discharge power mechanism is connected with a hollow rotation pipe; the lower end of the rotation pipe is arranged in a wind inlet box, and the upper end of the rotation pipe is equipped with a plurality of scraping blades and is arranged in the ash-settling chamber; the plate-overturning ash discharge furnace disc is arranged at the side face of the scraping blades by connecting rods; the upper end of the rotation pipe is connected with a center oxygen inlet pipe arranged in the furnace body; the center oxygen inlet pipe is equipped with a plurality of through holes; the outside of the furnace body is vertically equipped with a plurality of outer wall oxygen inlet pipes. The use method comprises that a material is fed through the feed inlet and then is burnt in the furnace body, at the same time, oxygen is supplemented through the outer wall oxygen inlet pipes and / or the center oxygen inlet pipe, and thus wood gas is obtained from the wood gas upper outlet and the wood gas lower outlet, and ash is discharged through the plate-overturning ash discharge furnace disc.

The invention relates to a method and a device for pyrolysis of wood tar through microwave. According the method, oxygen-free wood gas is fed into honeycomb activated carbon for being heated, wherein the honeycomb activated carbon is heated to 800-1200 DEG C through the microwave, so that macromolecules in the wood tar is heated and pyrolyzed into micromolecules and further wood gas containing non-caked wood tar. The device includes a microwave heating body in which the honeycomb activated carbon is disposed. A regenerator A is arranged on a gas inlet of the microwave heating body and a regenerator B is arranged on a gas outlet of the microwave heating body. By means of the device and the method, pyrolysis of the wood tar is more complete with catalysis of the honeycomb activated carbon and energy consumption of the pyrolysis is reduced due to recycle of thermal energy in a loop, wherein the pyrolysis itself is free of energy consumption. The wood gas is pyrolyzed in a microwave oven at high temperature under an oxygen-free condition and is high in quality. The pyrolysis techonology is simple and reliable in structure.

The invention discloses a preparation method of a tobacco sauce additive capable of improving the smoking quality of cut tobacco stems. The preparation method is characterized in that one or more of the cut tobacco stems, low-grade cut tobaccos or other natural products are taken as raw materials, the raw materials are sequentially extracted by low-polarity, medium-polarity and high-polarity solvents, and extract is dissolved in ethyl alcohol, propylene glycol or a mixture of ethyl alcohol and propylene glycol to prepare the tobacco sauce additive. The tobacco sauce additive is sprayed in the cut tobacco stems, the special wood gas of the cut tobacco stems can be reduced remarkably, the irritation is reduced, and smoking aftertaste quality of the cut tobacco stems and comfort are improved.

The invention relates to the field of carbonization furnaces, in particular to a heat exchange method of a carbonization furnace. The method comprises the following steps: (1) arranging a horizontal carbonization furnace body, a vertical carbonization furnace body and a regenerative furnace, wherein a combustion chamber is formed in the regenerative furnace, the regenerative furnace is separatelyprovided with burners, and the gas outlet of the regenerative furnace is connected with a waste heat exchange device; (2) operating the horizontal carbonization furnace body firstly, adopting wood gasgenerated by the horizontal carbonization furnace body to supply heat for heating of the horizontal carbonization furnace body, then introducing the remaining wood gas into the combustion chamber, and performing ignition burning; (3) heating the combustion chamber to 750-900 DEG C, operating the vertical carbonization furnace body, and inputting wood gas generated by the vertical carbonization furnace body into the combustion chamber; (4) performing burning on the wood gas which is generated by the vertical carbonization furnace body and input into the combustion chamber; and (5) introducinggas obtained after combustion is conducted in the regenerative furnace into the waste heat exchange device, and performing heat exchange. The technical problems of low efficiency of waste heat exchange and low productivity are solved when the wood gas in an existing carbonization furnace is used as boiler fuel.