44 results about "Fuel wood" patented technology

This invention relates to a novel apparatus and method for automatically and dynamically regulating the intake of air into the combustion chamber of a heating unit such as a wood burning stove, furnace, or fireplace to ensure even and efficient burning of fuel. More particularly, this invention pertains to a method and apparatus that uses negative gas pressure in the heating unit's flue, and no additional temperature or pressure sensors, to automatically and dynamically control a damper regulating intake of air into the combustion chamber in inverse relation to changes in negative flue gas pressure. This method and apparatus are especially useful in combination with a heating unit having two combustion chambers, one chamber for combustion of solid fuel and a second chamber for further combustion of exhaust gases and other byproducts from combustion in the first chamber. The two-stage combustion in a dual chamber heating unit is an especially dynamic situation where traditional static controls are not very effective.

Disclosed is a new and improved firelog comprising whole timber to which highly combustible fuel is injected. The log further comprises a plurality of slits to enhance the combustion process. Various combustible fluids or combinations thereby may be used as fuel. Applicants further disclose a method of impregnating said combustible fuel into said firelog.

The invention discloses an ecological plate. The ecological plate comprises a base plate layer and a composite plate; the base plate layer comprises a core plate, an upper medium plate and a lower medium plate, wherein the upper medium plate and the lower medium plate are respectively adhered on the upper surface and the lower surface through base plate adhesive layers; the composite plate comprises an outer plate, and a piece of melamine impregnated paper which is externally adhered on one of the surfaces of the outer plate; the upper medium plate and the lower medium plate are both adhered to the other surface of the outer plate through the composite plate adhesive layer. A preparation process of the ecological plate comprises the steps of 1, polishing two surfaces of a blank and cutting the edge to obtain the base plate layer; thermally pressing the outer plate and the piece of melamine impregnated paper to obtain the composite plate; 2, performing cold pressing and edge cutting for the base plate layer and the composite plate to obtain the final ecological plate. With the adoption of the preparation process, three wastes with small thickness and degraded and small fuel woods can be used for preparing the base plate layer, so that the resource utilization rate is increased; the process and time can be decreased, and the probability of reject ratio is reduced; the energy consumption in the production process can be decreased.

The invention discloses efficient slag-accumulation resistance biomass composite fuel. The fuel comprises two or more ingredients out of wooden leftover materials, bamboo leftover materials, straw, bark, fuel wood, rice husks, peanut shells and fragmentary branches. In order to improve the slag accumulation phenomenon, boiler ash is added to the composite fuel, and the boiler ash takes up, by mass, 1%-4%. By means of the biomass composite fuel, heated devices such as a water wall of a biomass boiler can be prevented from accumulating slag, heat generated in the combustion process of the fuel can be evenly distributed inside a hearth, the combustion efficiency of the biomass fuel is improved, the utilization rate of biomass energy is higher, the thermal efficiency of the boiler is higher, and the life of a circulating fluidized bedboiler is prolonged.

The invention provides pug of firewood-fired Nixing pottery and a process for manufacturing the Nixing pottery from the pug. The pug is prepared from, by weight, 5.5-6.8 parts of eastern mud, 1.3-2.0 parts of western mud, 1-1.5 parts of wood ash and 2-2.5 parts of kaolin. The process of for manufacturing the Nixing pottery from the pug comprises the steps of blank preparation, blank body forming, blank body drying and blank body firing; according to blank preparation, the eastern mud, the western mud, the wood ash and the kaolin with the formula amount are prepared into a blank through a conventional process; according to blank body burning, the blank body is fed into a wood-fired kiln, woody plants are adopted as fuel, the firing temperature ranges from 1,160 DEG C tot 1,180 DEG C, and after firing is completed, cooling and drawing are carried out. The kaolin and the wood ash are added into conventional Nixing pottery pug, so that the firing temperature range of the Nixing pottery is greatly widened; the melting temperature of ash of fuel wood can be reduced, the melting time of the ash can be shortened, and the fuel wood cost is greatly reduced.

A method for making wood-fired pizzas at a customer designated location for an event comprises assembling a portable wood stove at the location, setting up a customized pizza assembly station adjacent the assembled stove and then individually making TO ORDER pizza pies for rapidly baking in that wood fired stove. After everyone's had their fill, the stove can be cooled, disassembled and carted off to its next event location for customized wood-fired pizza making for that event's attendees.

The invention discloses a method for outdoor cultivation of Gastrodia elata Blume in northern area, which comprises the following steps: selecting a land, opening a hole, digging a ditch, preparing bacterial rods and fuel wood, inoculating Armillaria mellea, sowing, and daily management and harvesting, wherein the method also comprises a cultivation method of Armillaria mellea mother culture. Theculture mode of the Armillaria mellea mother culture comprises the selection of the formula for preparing the mother culture culture medium, the preparation of the mother culture culture medium and the inoculation culture of the Armillaria mellea mother culture, wherein the Gastrodia elata Blume can be harvested one year after the seeding of the Gastrodia elata Blume, the Gastrodia elata Blume harvest period is better from September to February of the next year in Chinese calendar, meanwhile, the fuel wood added in the previous year can also be used as a bacterial material after the harvest, and then 3 to 5 new bacterial rods are added for sowing the Gastrodia elata Blume. The method for outdoor cultivation of Gastrodia elata Blume in northern area has the advantages of high wood utilization rate, good quality of the Gastrodia elata Blume, high content of various nutrient components and good medicinal effect of the wild Gastrodia elata Blume.

The invention provides black liquid charcoal. The raw materials of the charcoal comprise at least fuel wood, shrubs, branches, barks, wood processing residues or deserted artificial boards and the like, two components of the raw materials and alkali lignin are mixed, and then cooling compression molding is conducted through a pressing machine, and carbonization is conducted so that the black liquid charcoal is made. The fuel wood, the shrubs, the branches, the barks, the wood processing residues or the deserted artificial boards and the like are hard to be utilized by machine-made charcoal manufacturing and are usually burned off or rotted, utilization degree is low, the alkali lignin is also a problem in black liquid recycling management, the alkali lignin is produced by soda pulping or sulfate pulping through acidification, the alkali lignin has the characteristics of high-viscosity and high-calorific value, the two components of the raw materials and the alkali lignin are mixed and then the cooling compression molding is conducted through the pressing machine, and carbonization is conducted so that the black liquid charcoal is made. The produced carbon is high in caloric value, not prone to crushing, high in application range and utilization rate, in addition a large number of alkali lignin resources produced in the process of pulping and papermaking can be utilized sufficiently, and therefore the pressure of environmental management is relieved.

The invention relates to a novel sanitation and epidemic prevention disinfection smoke agent. The product belongs to the field of daily chemical product and sanitation and epidemic prevention disinfectant. The product is suitable to be used in epidemic focus disinfection in relatively confined spaces such as families, schools, dormitories, workshops, tunnels, and the like. In the product, a disinfectant active ingredient is prepared from well compounded and pressed materials such as kresoxim-methyl, chlorine isonitrile uric acid, and the like, and a proper fuel wood powder, a combustion improver potassium chlorate, a smoke agent ammonium chloride, a flame retardant clay, and an adhesive hydroxymethyl cellulose. The product is convenient to use. When in use, the product is ignited for smoking. When tested according to a method defined in Ministry of Health. disinfection technical specifications (2002), the product has a killing rate reaching 99.9% against staphylococcus aureus, escherichia coli, and bacillus subtilis black variant spores. When in use, the product is placed on a tile on ground; a dosage is calculated according to a volume; channels such as doors and windows are closed; the product is ignited; and fumigation is carried out for 120min.

The invention provides a method for producing a new type of biomass fuel using cow dung. The method includes the following steps: (1) pre-processing: enabling the cow dung to react for 20 minutes under the conditions of 150-180 DEG C and 0.8-1.2 Mpa in the presence of a catalyst; (2) solid-liquid separation: separating the solid cow dung from the liquid after preprocessing; (3) biomass fuel production: producing biomass particle fuel using the separated solid dung. The method provided by the invention solves the problem of environmental pollution caused by the cow dung produced in farms; the cow dung is processed into the biomass fuel which is clean and environment-friendly and reduces greenhouse effects caused by fossil energy consumption; the cow dung solid fuel basically realizes zero emission standards of the environmental protection, can efficiently replace three major types of energy with high pollution and high emissions, and reduces the usage amount of direct-fired fuel wood; the resource utilization of agricultural wastes such as the dung of grazing cows is a strategic measure for promoting energy conservation and emission reduction and a powerful action for protecting the ecological environment, drives the establishment of a resource-saving and environment-friendly society, and maintains the harmonious development of human beings, nature and economy.

The invention discloses a preparation method of high-utilization-rate machine-made charcoal. The preparation method comprises the following steps: crushing raw materials by a crusher and uniformly stirring with phenolic resin to obtain a blank; molding the blank into a blank with the density of 1-1.3g/cm < 3 > by a blank hot press under the conditions that the pressure intensity is 10-20MPa and the temperature is 150-200 DEG C and sawing the blank into a required specification after discharging; carrying out semi-finished product molding processing by a rod molding machine and carrying out rodmolding; heating in the machine at 350-420 DEG C to obtain a semi-finished product for later use; stacking and airing the obtained semi-finished product for later use; and filling the aired semi-finished product into a carbonization furnace, carbonizing at 500-600 DEG C under the condition of introducing air and naturally cooling to obtain the machine-made charcoal. According to the preparation method of the high-utilization-rate machine-made charcoal, disclosed by the invention, the utilization rate of fuel wood, shrubs, branches, barks, wood processing residues or waste artificial boards can be improved to be more than 60%.

The invention discloses a fuel wood boiler and belongs to the technical field of boilers. The fuel wood boiler comprises a boiler body, a feeding hopper is arranged on one side of the boiler body, a smoke exhausting port is formed in the upper portion of the boiler body, the boiler body is provided with a combustion chamber, a first air supplying port is formed in the lower portion of the combustion chamber, a feeding port communicated with the feeding hopper is formed in the boiler body, a chain grate stoker penetrating through the lower portion of the feeding port is arranged in the combustion chamber and the feeding hopper, a gate for adjusting the size of the feeding port is arranged on the boiler body, a second air supplying port is formed in the lower portion of the feeding hopper, the smoke exhausting port is communicated with a heat source port of a heat exchanger, a heated end outlet of the heat exchanger is communicated with an air inlet of an air blower, and an air outlet of the air blower is communicated with the first air supplying port and the second air supplying port. According to the fuel wood boiler, barks discarded by people serve as fuels of the boiler, and heat energy discharged by a boiler flue is fully utilized to improve the combustion efficiency and save energy, natural resources are fully utilized, and the production cost is saved.

The invention discloses a wood drying machine, and relates to the technical field of wood processing. The wood drying machine comprises a compressor, a circulation pipe, heat regenerators, an evaporator, a drying controller, an expansion valve, a condenser, evaporation pipes and a conduction pipe. The evaporator is connected with the condenser through the compressor and the expansion valve. The compressor is connected with the expansion valve through the drying controller. The evaporation pipes are of a multi-layer folding structure and are arranged inside the evaporator and the condenser. By means of a closed dehumidifying drying manner, waste gas and waste heat are not discharged, and noise pollution is avoided. The wood drying machine is a high-environment-friendly product and is not affected by the outside, and pollution of emitted smoke of a fire coal and fuel wood boiler is reduced. The wood drying period is shortened, the wood water content can be controlled, and all parts of wood can be evenly dried. The water content of the wood is accurate, stable and even. The shrinkage rate of the dried wood is greatly reduced, the wood surface quality is high, and the phenomenon of surface hardening is not likely to happen.

The invention discloses a biomass air heater which comprises a spiral feeder, a hopper, a cabinet body and a plate type heat exchanger. An induced draft fan is installed at the upper end of the cabinet body, moving wheels are installed at the lower end of the cabinet body, an ash outlet is formed in the lower side of the front end of the cabinet body, and an ignition fan is arranged at the rear end of the cabinet body. According to the biomass air heater, cold air introduced by the combustion fan is heated in an encircling mode in the furnace wall, the heated hot air enters a combustion chamber through a secondary air port, sufficient oxygen can be provided for a hearth to make biomass particles combusted sufficiently, a large quantity of black smoke and volatile components are reduced, and the heat loss can be reduced; cold and heat isolation is adopted in the heat exchange process of the plate type heat exchanger, the obtained hot air is clean and free of contamination, the heat exchange area is sufficient, and the heat exchange amount is larger; biomass particle fuel can be provided for a combustion furnace through the spiral feeder, biomass fuel such as fuel wood and straw can be provided for the combustion furnace through a furnace door, and multiple feeding modes are achieved; and the biomass air heater is small in size, movable and capable of working flexibly.

The invention provides a novel wood-burning particle furnace. The furnace comprises a shell, a feeding port, a burning system, a heat converter and an exhaust device, wherein the feeding port is formed in the upper end of the shell and is connected with the input end of the burning system, and the output end of the burning system is connected with the input end of the heat converter; the burning system comprises a burning chamber, a conveyor, a burning bowl and an ash tray, the burning chamber is arranged on one side of the shell, the input end of the conveyor is connected with an outlet of the feeding port, the output end of the conveyor is arranged on one side of the burning chamber and is connected with the burning bowl, the burning bowl is arranged on the inner side wall of the burning chamber, and the ash tray is arranged under the burning bowl; and the heat converter comprises a heat transfer pipe set and an air duct, the heat transfer pipe set is horizontally arranged at the upper end in the burning chamber, the input end of the air duct is arranged above the heat transfer pipe set and communicates with the upper surface of the burning chamber, and a pipe body of the air duct is tightly attached to the inner side wall of the burning chamber.

The invention discloses an embedded dual-hearth wood-burning furnace. The furnace comprises a dual-hearth wood-burning furnace body formed by communicating a primary combustion chamber with a secondary combustion chamber. One side of the primary combustion chamber is provided with a first primary combustion chamber furnace door, a first upper air inlet, a first smoke outlet and a first air supplement device. The first smoke outlet communicates with a smoke discharging port and is provided with a first valve cover, the other side of the primary combustion chamber is provided with a second primary combustion chamber furnace door, a second upper air inlet, a second smoke outlet and a second air supplement device. The second smoke outlet communicates with the smoke discharging port and is provided with a second valve cover, one side of the secondary combustion chamber is provided with a first secondary combustion chamber furnace door, a first air outlet and a first secondary smoke discharging channel connected with the first air outlet, and the first air outlet communicates with the smoke discharging port through the first secondary smoke discharging channel. The other side of the secondary combustion chamber is provided with a second secondary combustion chamber furnace door, a second air outlet and a second secondary smoke discharging channel connected with the second air outlet,and the second air outlet communicates with the smoke discharging port through the second secondary smoke discharging channel.