14results about How to "Improve flammability" patented technology

The utility model belongs to the technical field of biomass particle furnaces, and particularly relates to a feeding device of a biomass particle furnace, which comprises a storage bin, a feeding device is arranged below the storage bin, a feeding hole is formed in a position, corresponding to an opening in the lower end of the storage bin, of the feeding device, and a discharging hole is formed in one end, far away from the feeding hole, of the feeding device. The feeding device comprises a shell, a conveying assembly is installed in the shell, a plurality of transverse baffles are evenly installed on the conveying assembly at intervals, and two side baffles are symmetrically arranged at the two ends of each transverse baffle in a sliding mode. According to the utility model, the quantity of the fuel entering the combustion chamber can be controlled according to the requirements of different combustion furnaces, the application range is wider, and meanwhile, the buffering bin is arranged, so that the energy is saved, and the cost is reduced.

The application discloses a kind of resource recycling methods for preparing tea pigment by tea dregs, and relates to the technical field of waste resource utilization;The method uses tea dregs after extracting tea pigment as raw material, obtains pure tea dregs after pretreatment, and then separates cellulose components and lignin-hemicellulose mixed components by alkali leaching-screening combined method, and then uses the two components as raw material respectively, shares core drying process, and synchronously prepares tea dregs dietary fiber and biomass briquetting fuel.The present application realizes the precise high-value utilization of different components of tea dregs, cellulose is used to produce high-purity dietary fiber, lignin-hemicellulose is used to produce high-performance briquetting fuel, and there is no component waste;Process procedure sharing, smooth connection.

This invention provides a biomass fuel and its preparation method, belonging to the field of waste utilization technology. This invention mixes different waste materials to prepare biomass raw materials, and simultaneously utilizes microbial strains to transform the organic flame retardants contained in the waste raw materials into new flammable agents through biochemical reactions. The prepared biomass fuel has high calorific value, low smoke and dust, and excellent combustion performance, making rational use of various waste materials, and is environmentally friendly, efficient, and energy-saving. The results of the embodiments show that the biomass fuel prepared by this invention has a calorific value of 35.6 MJ / kg, a calorific value of 4100 cal / g, a combustion efficiency of 99.1%, and low smoke and dust.

The invention relates to the technical field of high-activity metal powder, in particular to high-environmental-stability aluminum-lithium alloy powder and a manufacturing method and application thereof.The high-environmental-stability aluminum-lithium alloy powder comprises, by weight, 1.0-10.0 wt.% of Li, 1.0-10.0 wt.% of Al, 1.0-10.0 wt.% of Ti, 1.0-10.0 wt.% of Ti, 1.0-10.0 wt.% of Ti, 1.0- 0.1 to 5.0 wt.% of Zr; 0.01 to 2.0 wt.% of Ti; 0.05 to 3.0 wt.% of RE; wherein RE is a rare earth element and at least comprises Y, Ce, La or a combination thereof, the sum of Zr, Ti and RE does not exceed 8.0 wt.%, and the balance is Al and inevitable impurities. The method has the effect of improving the use stability and the machining consistency of the aluminum-lithium alloy powder.

The utility model relates to a temperature controllable open fire oven which comprises an oven body, a first heating assembly and a baking net, the baking net and the heating assembly are installed in the oven body, a flame adjusting assembly is arranged above the first heating assembly, the baking net is installed above the flame adjusting assembly, and the flame adjusting assembly comprises a supporting piece and a movable assembly. An opening is formed in the top of the supporting part, a first baffle is fixedly installed at the top of the supporting part and divides the opening into two fire outlets, the movable assembly comprises a driving assembly and a movable part, the movable part is fixedly connected with the driving assembly and located above the fire outlets, and the driving assembly can control the movable part to swing so as to cover the fire outlets. According to the open fire oven with the controllable temperature, it can be guaranteed that fuel is combusted sufficiently, the good combustion effect is achieved, the barbecue temperature can be adjusted, and therefore the open fire oven can adapt to different barbecue scenes.

The utility model discloses a multifunctional natural gas long-flame burner, which belongs to the technical field of natural gas long-flame burners and comprises a shell, a natural gas structure is arranged at the center of the inside of the shell, a fixing disc is arranged at the center of the front end face of the shell, and a burner structure is arranged at the center of the inside of the shell. The burner structure comprises a flame guide pipe, the flame guide pipe is arranged at the center of the rear end face of the fixing disc, the inner side wall of the flame guide pipe is sleeved with a self-cleaning layer, the inner side wall of the self-cleaning layer is sleeved with a wear-resisting layer, and a supporting structure is arranged at the position, close to the front portion, of the center of the outer side wall of the shell. Connecting structures are arranged on the rear portions of the centers of the lower end faces of the shell and the burner nozzle structure, an air adjusting opening is formed between the two connecting structures on the rear portion of the center of the outer side wall of the flame guide pipe, in addition, impurities and the like generated by combustion in the flame guide pipe can be prevented from being attached, the pipeline is kept smooth, the blocking risk is reduced, and the service life of the flame guide pipe is prolonged. And the maintenance cost and the downtime are reduced.

The utility model discloses a special steam heat exchange component for corn straws, which comprises a combustion chamber and a heat exchange tower fixed at the upper end of the combustion chamber, the middle part of the combustion chamber is fixedly connected with a combustion frame, through grooves are formed in the middle part of the combustion frame at equal intervals, a movable drawer for collecting dust is arranged below the through grooves, and the movable drawer is fixedly connected with the combustion frame. The heat exchange pipe assembly is arranged in the heat exchange tower, the upper end of the heat exchange pipe frame is fixedly connected with a treatment box, a suction fan is installed on the top of the treatment box, and an activated carbon filtering and purifying net is installed in the middle of the treatment box in an inserted mode. According to the steam heat exchange assembly special for the corn straw, dust generated in the combustion process falls into the movable drawer through the through groove to be collected and cleaned, through arrangement of the heat exchange pipe assembly, the contact area of high-temperature steam and cooling is increased, a better heat exchange effect is achieved, and through combination with arrangement of an activated carbon filtering and purifying net, the heat exchange efficiency is improved. Flue gas after heat exchange can be conveniently filtered and purified, and pollution to the environment is reduced.

The present application belongs to the field of burners, and discloses a deflectable wall-type tangential circle boiler burner and a working method. The deflection assembly adopts a transmission mode of servo motors, screw rods and solid rods, which can realize accurate angle adjustment. This makes the burner nozzle able to adjust the direction in real time according to the needs, and optimizes the distribution of combustion gas flow in the furnace. Especially under the conditions of boiler load change or different fuels, this flexible adjustment capability helps to improve the combustion efficiency. By accurately adjusting the deflection angle of the nozzle, the present application can make the combustion gas flow evenly distributed in the furnace, reducing the phenomenon of incomplete combustion. The direction of the burner nozzle can be dynamically adjusted according to different working conditions, so as to better adapt to the needs of different loads and different fuels, and finally improve the overall combustion efficiency of the boiler. The adjustable deflection angle of the present application makes the burner nozzle able to adjust according to the distribution of the temperature in the furnace, effectively avoiding the areas with excessively high or low temperature.

The invention belongs to the technical field of preparation of biomass fuels, and particularly relates to a mixed fuel prepared from corn straws and salix mongolica and a preparation method of the mixed fuel. The invention relates to a mixed fuel composed of corn straw and salix mongolica. The mixed fuel is obtained by mixing crushed corn straw and crushed salix mongolica according to a mass ratio of (1-3): 1 and then performing compression molding, the water content of the mixed fuel is 12%-18%; the unit density of the mixed fuel is 0.917 to 1.003 g / m < 3 >; the thickness of the interface transition layer of the mixed fuel reaches 8-15 microns; the pore size of the mixed fuel is smaller than 50 micrometers, and the mixed fuel meets the requirement of third-level fuel and is good in combustion performance.

The utility model relates to a kind of secondary combustion chamber for solid waste treatment, including shell, the bottom of shell is equipped with air inlet, top is equipped with air outlet, shell bottom is equipped with burner, shell bottom end outside is also equipped with closed loop wind device, closed loop wind device is used to the direction of the shell radial direction in the shell for air intake, to make flue gas spiral flow from the air inlet to the air outlet;Closed loop wind device includes two groups of air intake components respectively distributed in the shell two sides, air intake component includes main pipe and the multiple branch pipes connected on main pipe, branch pipe one end is communicated to the shell, the other end is closed.The utility model increases closed loop wind device, the combustion time of original combustion track is increased from 2.8 seconds to 3.8 seconds, can effectively increase combustion time, reduce the detonation phenomenon caused by too short combustion time, avoid producing CO flue gas overproof, can reduce the risk of flue gas overproof.

The application discloses a hydrogen injection strategy optimization method for a dual-fuel X-type rotor engine, obtains geometric parameters of the X-type rotor engine, establishes a CDF fluid simulation model of a dual-fuel X-type rotor engine with gasoline intake port premixing and hydrogen in-cylinder direct injection, determines engine ignition parameters and operating conditions of a single hydrogen injection strategy, and obtains, through simulation calculation, a hydrogen injection time point at which a hydrogen distribution area is maximum and a hydrogen injection time point at which a flame front area is maximum. Under the condition that the hydrogen injection total amount at the two hydrogen injection time points is the same as that of the single hydrogen injection strategy and the hydrogen injection mass fraction at the two hydrogen injection time points is taken as a variable, the hydrogen injection mass fraction corresponding to the hydrogen injection time point at which the hydrogen distribution area is maximum and the hydrogen injection mass fraction corresponding to the hydrogen injection time point at which the flame front area is maximum are obtained through simulation calculation, an optimal two-stage hydrogen direct injection strategy of the dual-fuel X-type rotor engine is obtained, and the thermal efficiency and emission performance of the rotor engine are improved.

This invention relates to the field of impregnated paper, specifically to a method for preparing high-performance moisture-proof and flame-retardant impregnated paper. The invention involves coating both sides of the impregnated paper with adhesive to obtain a moisture-proof and flame-retardant layer. This layer possesses both moisture-proof and flame-retardant functions. It uses melamine-formaldehyde resin as the adhesive matrix, which exhibits superior thermal stability and flammability compared to other adhesive matrices. Specifically, by reacting melamine with formaldehyde and then adding aluminum hydroxide emulsion, the melamine-formaldehyde resin first coats the aluminum hydroxide before the main reaction. This reduces the polarity difference between the inorganic filler flame retardant and the polymer adhesive matrix surface, further improving the compatibility between the polymer adhesive matrix and aluminum hydroxide, preventing agglomeration, and allowing the flame-retardant properties of the inorganic flame retardant to be effectively utilized. The biochar powder used in this invention, due to its porous structure, not only absorbs moisture but also serves as a carrier for the volatile organic flame retardant toluene diphenyl phosphate, enhancing its flame-retardant performance. In summary, this invention requires only one coating to obtain impregnated paper with good mechanical properties and moisture resistance and flame retardancy.

A method for synergistically preparing green Portland cement clinker by utilizing multi-element solid waste comprises the following steps: (1) obtaining raw materials of limestone, silica, phosphorite beneficiation powder, copper tailings, ferroalloy slag and coal-fired slag, burdening according to silicate, and mixing and grinding to obtain a raw material; (2) preheating the obtained raw material by a preheater, and then feeding the raw material into a decomposing furnace for decomposing; (3) calcining in a rotary kiln after decomposition to obtain green Portland cement clinker; the method has the beneficial effects that 1, the copper tailings are doped, so that the burnability of the raw material is improved, and the cost of the raw material is reduced; 2, the content of f-CaO in the clinker can be reduced, the compressive strength, compactness, water resistance and stability of the clinker can be improved, the quality of the clinker is improved, and the coal consumption of clinker sintering is reduced; thirdly, after the copper tailings are used for replacing a part of ferroalloy slag, the content of water-soluble hexavalent chromium in the cement is reduced; and 4, by doping the coal-fired slag, the grindability of the raw material can be improved, the quality of the clinker is improved, the coal consumption of clinker sintering is reduced, and the cost is reduced.

The present application relates to propellant technical field, specifically disclose a kind of quick response hydrocarbon propellant and its preparation method, by mass percentage includes composite hydrocarbon fuel: 26~40%;Oxidant: 30~35%;Metal fuel: 8~15%;Binder: 18~23%;Process aid: 0.1~1.6%;Binder is the combination of butadiene rubber and polybutadiene.This hydrocarbon propellant uses butadiene rubber with melting temperature of 80 DEG C as binder matrix and uses liquid PB with molecular weight of 2000~2500 as auxiliary binder, ensure propellant mixing process performance, improve the bonding performance between hydrocarbon fuel system and binder, improve the mechanical properties of propellant;And the present application uses non-polyurethane binder system, solves the problem that polyurethane curing system is cured by environmental humidity, and propellant strength is less affected by environment.