6results about How to "Improve flammability" patented technology

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 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 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.