45results about How to "Keep burning" patented technology

The invention discloses a smoke recycling pulverized coal boiler combustion system and a working condition switching method thereof, and belongs to the fields of adjusting and control methods of oxygen-enriched combustion of a pulverized coal boiler. The smoke recycling pulverized coal boiler combustion system and the working condition switching method thereof solve the adjusting problem of the pulverized coal boiler in the switching process from an air combustion working condition to an oxygen-enriched combustion working condition. The smoke recycling pulverized coal boiler combustion system comprises a coal feeding machine, a burner, a boiler, a denitrator, an air pre-heater, an ash handling equipment, a desulfurizer and an induced draft fan. The working condition switching method of the smoke recycling pulverized coal boiler combustion system comprises the steps of arranging detection equipment, controlling recycling valves and an inlet valve, controlling the outlet flow of an air feeder and controlling oxygen injection amount. According to the smoke recycling pulverized coal boiler combustion system and the working condition switching method thereof, the changing parameters of the working condition switching process are obtained from related detection points in the combustion system, a circulation factor is determined through recycling smoke amount, oxygen injection flow of primary wind and secondary wind is determined through the oxygen amount of the outlet of a hearth, fluctuations of the circulation smoke amount, the air flow and the oxygen injection amount are maintained in a reasonable range in the switching process, switching from the air combustion working condition to the oxygen-enriched combustion working condition is achieved safely and stably, and the concentration of CO2 in the smoke is maintained.

The present invention is a portable heat sealing apparatus with a safety circuit design. The portable heat sealing apparatus comprises a body, a heating module, an upper case and a power module. The heating module and the upper case ensure a smooth, continuous bond between facing surfaces of a plastic bag.

The invention relates to a bio-oil and a combustion process taking the bio-oil as fuel. The bio-oil contains a component A and water at a weight ratio of 100:(40-100), wherein the component A contains ethyl alcohol, glycerol, potassium hydroxide, ferrocene, ethyl acetate and methyl alcohol. A combustion-supporting branch is connected with a furnace core through a burner cover, and a combustion-maintaining branch is directly connected to the furnace core; in different occasions, the combustion-supporting branch and the combustion-maintaining branch are simultaneously started or only the combustion-maintaining branch is started; and the atomizing mode (short-line atomization and long-line atomization) and ignition mode of the bio-oil are both realized under stored program control. According to the process, the ratio of methyl alcohol to water of the bio-oil is increased, the combustion is sufficient, no waste liquor or exhaust gas is discharged, the furnace temperature is controlled by controlling the fuel charging volume, and the application range is wide.

The invention discloses a flame-retardant, high-strength and three-dimensional solid wood board and a manufacturing method thereof. Particularly, a flame-retardant layer is arranged outside a hard base layer to prevent flames from being spread on the solid wood board, the solid wood board can be prevented from being combusted continuously and independently, and therefore the solid wood board can have high flame-retardant performance; and due to the arrangement of the independent flame-retardant layer, no extra flame retardant needs to be added during manufacturing of the solid wood board, stability of the performance of the board is ensured, volatile toxic substances in the solid wood board are reduced, and environment friendliness of the solid wood board is improved. The flame-retardant, high-strength and three-dimensional solid wood board can be widely applied to the fields of home decoration, artwork processing, commercial place decoration, municipal construction and the like.

The invention discloses multilayer auxiliary heating type garbage disposal equipment, which comprises a furnace body and a heat supply device, wherein the furnace body comprises an upper furnace body and a lower furnace body; the upper furnace body is provided with an upper clamping cavity; the upper clamping cavity is provided with an exhaust opening; the lower furnace body is provided with a lower clamping cavity; the top of the upper furnace body is provided with a feeding opening; a first auxiliary heating pipeline is arranged in the upper furnace body, and is provided with an air inlet end and an air outlet end; the air outlet end of the first auxiliary heating pipeline communicates with the upper clamping cavity; an air inlet pipe rack is arranged at the bottom of the furnace cavity of the lower furnace body; a second auxiliary heating pipeline is arranged above the air inlet pipe rack, and is provided with an air inlet end and an exhaust end; the air inlet end of the second auxiliary heating pipeline communicates with the lower clamping cavity; the air outlet end of the second auxiliary heating pipeline communicates with the first auxiliary heating pipeline; the heat supply device communicates with the lower clamping cavity and the first auxiliary heating pipeline; a first valve is arranged between the heat supply device and the lower cavity body; a second valve is arranged between the heat supply device and the first auxiliary heating pipeline. The multilayer auxiliary heating type garbage disposal equipment can effectively ensure the sustained combustion of garbage in the combustion layer.

The invention relates to the technical field of power plant boiler oxygen amount control, and discloses a boiler oxygen amount wide-load optimization control system. The boiler oxygen amount wide-load optimization control system comprises a boiler, air supply equipment and a system fuzzy control module, and a boiler temperature field data acquisition module, a combustion characteristic acquisition module, a pulverized coal fineness data acquisition module and an in-boiler combustion condition feedback module are installed in the boiler. According to the boiler oxygen wide-load optimization control system, the optimal oxygen amount under different thermal loads of the boiler is determined according to the boiler temperature field, the combustion characteristics and the pulverized coal fineness, an advanced fuzzy control strategy is adopted, boiler oxygen amount control in wide-load automatic cruising is achieved, the optimal combustion condition of the boiler is kept, and the boiler efficiency is improved; the unit air supply amount is corrected in real time according to the unit oxygen amount, the stability of parameters in the unit load increasing and decreasing process is improved, and the precision of control over the air supply oxygen amount in the boiler is improved; and the economy of unit operation can be guaranteed, and the environmental friendliness of unit operation is improved.

The invention discloses a domestic waste disposal system for a waste plant. The domestic waste disposal system comprises a disposal machine. A dustbin is arranged on at the position, on the left sideof the disposal machine, of the ground, and a waste lifter is obliquely inserted into a dustbin body of the dustbin. A spiral lifting rotating shaft is arranged at the center position of an inner cavity of the waste lifter, and a spiral conveying blade is arranged on a shaft body of the spiral lifting shaft. A combustion net is arranged on the inner side wall of the disposal machine. A high-temperature fire grate is arranged below the combustion net. An ash guide oblique plate is obliquely arranged below the high-temperature fire grate. An ash discharge opening is formed at the joint of the ash guide oblique plate and the inner side wall of the disposal machine. Two fans communicating with the inner cavity are further arranged on the bottom side wall of the disposal machine. By means of the domestic waste disposal system, complexity of feeding of a traditional manual manner is changed, the operation strength of master workers is greatly reduced, it is guaranteed that continuous high temperature can be provided inside, and waste can be sufficiently combusted easily.

The invention provides a combustion stove for granular fuel, which comprises a box body, a fuel storage device is arranged in the box body, the fuel storage device comprises a barrel body, a bracket is arranged at the top of the barrel body, a lead screw is arranged in the barrel body, a tray is arranged on a sliding block of the lead screw, the lead screw is connected with a transmission rod through a reverser, and a first handle is arranged at the end part of the transmission rod. The tray can be driven to lift by rotating the first handle, so that the height of fuel is adjusted, sufficient combustion of the fuel is ensured, pollution is reduced, combustion heat can be better utilized, and waste is reduced; the feeding structure is arranged on the side wall of the barrel in a communicating mode, when fuel needs to be supplemented temporarily, the tray can be adjusted to move downwards to be lower than the feeding structure, a preset amount of fuel is fed into the barrel through the feeding structure, and then continuous combustion and heat supply are maintained.

The invention discloses an alcohol or mixed alcohol fuel hotpot stove. The alcohol or mixed alcohol fuel hotpot stove comprises a support frame, a fuel tank and a stove device, wherein the fuel tank and the stove device are fixedly installed on the support frame in parallel, a thermal insulating layer is arranged between the stove device and the fuel tank, and the fuel tank provides fuel into the stove device through a material pump so as to supply heat by burning the fuel in the stove device. The alcohol or mixed alcohol fuel hotpot stove overcomes the defects that liquid fuel is poor in ignition reliability, and needs long time when ignited to normal combustion, is convenient to carry, small in occupied area, capable of atomizing the liquid fuel fed through external force, and good in atomization effect, rapidly extrudes the fuel after being atomized through internal pressure so as to generate high density atomized fuel around, and is characterized by conveniently and rapidly igniting, improving combustion efficiency of the fuel, achieving high heat efficiency for the fuel, gathering flame, greatly saving the fuel, and being simple in overall structure, stable in structure, safe and reliable and the like.

The invention discloses an oxygen supply device of a high-temperature pyrolysis gasification furnace. The oxygen supply device is arranged on the pyrolysis furnace and comprises an air duct arranged on the inner wall of the pyrolysis furnace, wherein an air inlet is formed in one side, facing the inner wall of the pyrolysis furnace, of the air duct; the air inlet communicates with the outside of the pyrolysis furnace through an air inlet pipeline; a fan is arranged on the air inlet pipeline; an air outlet is formed in one side, back to the air inlet, of the air duct; and a shielding device isarranged above the air outlet. According to the oxygen supply device, sufficient oxygen can be supplied to combust materials completely without a combustion improver, flue gas is reduced, and cost isreduced accordingly; and the shielding device is arranged at the air outlet but does not block the air outlet, and therefore oxygen can be continuously supplied to burn the garbage fully.