34results about How to "Fully burnt" patented technology

The invention provides a preparation method for a BiFeO3 target material. The preparation method for the BiFeO3 target material comprises the following steps: carrying out grinding, ball milling, preburning, re-ball milling, granulation and screening for the mixture of bismuth oxide Bi2O3 and ferric oxide Fe2O3 to obtain the target material; and then carrying out batch dropping, baking, heating with pressure, heat insulation and cooling for the target material. The invention also provides a method for preparing a film through the BiFeO3 target material. The method comprises the following steps: selecting a Pt/TiO2/SiO2/p-Si substrate; preparing the BiFeO3 film through a radio frequency magnetron sputtering method; and finally carrying out the annealing treatment of the prepared BiFeO3 film. The target material has the advantages of no impurity phase, levelness and compactness. The film prepared through the target material has a compact and even surface, better crystallinity, no impurity phase, low drain current, saturated electric hysteresis loop, good fatigue characteristic, and good repeatability.

The invention discloses a low-corrosion and high-efficiency city garbage combusting system and method. The low-corrosion and high-efficiency city garbage combusting system comprises a boiler system and a marsh gas auxiliary combusting system. The boiler system comprises a combusting room with a cavity. The combusting room is provided with a feeding port, a slag discharging port, an air inlet and an exhaust opening. The marsh gas auxiliary combusting system comprises a combusting device, a dehumidifying device and a fermenting device used for fermenting kitchen garbage. The combusting device is connected to the combusting room, and the combusting device, the dehumidifying device and the fermenting device are communicated in sequence and in series. By means of the low-corrosion and high-efficiency city garbage combusting system, the difference of the water content of garbage is small, the combustion heat value and the water content are uniform, and corrosivity is low.

The invention discloses a novel cyclone bias pulverized coal burner. The novel cyclone bias pulverized coal burner is characterized by comprising a central pipe, a pulverized coal concentration device, a primary air channel, a pulverized coal bias separating cylinder, a central pipe flaring, a primary air pipe flaring, a secondary air channel, a cyclone, a tertiary air channel and a tertiary air pipe flaring from inside to outside. According to the novel cyclone bias pulverized coal burner, the ignition and the burning of anthracite are supported in a mode of supplementing high-quality bituminous coal, the effect of increasing volatile matters of pulverized coal in a disguised form is achieved in the preliminary burning stage of the pulverized coal, and the timely ignition, the stable burning and the efficient burnout of low-volatile-matter pulverized coal are guaranteed. The novel cyclone bias pulverized coal burner is simple in structure, convenient to transform, and capable of efficiently burning the low-volatile-matter coal and particularly suitable for the structural transformation of burners of medium and small-sized industrial boilers, and can be widely applied to burning of low-volatile-matter anthracite duff for the industrial boilers.

The invention discloses calcium aluminate powder for a water treatment agent and a preparation method thereof. The calcium aluminate powder is prepared from raw materials of bauxite, limestone and boracic mineral according to a weigh ratio of 60-80:30-45:0.5-2. The preparation method is characterized in that the high activity calcium aluminate powder is produced through treating the boracic mineral as a mineralizer, and adopting a calcining tail gas waste heat preheating pre-decomposition-calcining technology. The method which treats the boracic mineral as the mineralizer in the invention allows a case that the high activity calcium aluminate powder is produced from low grade bauxite to be possible, so the utilization rate of bauxite resources is improved, thereby the method has substantial economic, social and environmental benefits; and the clinker calcining temperature is reduced, the clinker sintering reaction speed is accelerated, and the alumina leaching rate is improved, so purposes of energy consumption reduction, and product quality and output improvement are reached.

The invention relates to an incinerator for processing pulping foul gas in paper mills, belonging to machinery. The incinerator is composed of a cylinder burning system, a support structure, a fan, an air duct, a pipeline and a valve, wherein the cylinder is composed of an inner cylinder and an outer cylinder; an interlayer is formed between the inner cylinder and the outer cylinder; a flow guide plate is arranged in the interlayer and connected with the inner cylinder and the outer cylinder; the burning system is composed of a main burner and a foul gas burner; the main burner and the foul gas burner are connected to the bottom of the cylinder through flanges; the main burner is positioned at the center of the bottom of the cylinder; the spouts of the main burner are perpendicular to the foul gas burner and annularly arranged around the main burner; and the cylinder is perpendicularly fixed above an alkali recovery boiler by the support structure. The incinerator for processing foul gas has the advantages of reasonable structure, convenient use and operation, can be matched with the alkali recovery boiler, and can also be independently used for long-time service when the alkali recovery boiler stops working. The incinerator is suitable for processing pulping foul gas in paper mills by incineration, and can also be widely used for processing other similar harmful waste gases.

The invention provides a uniform continuous feeding device for garbage incineration fly ash particles. The uniform continuous feeding device comprises a fluidized bed feeder. The fluidized bed feederis provided with a wind inlet and a material storing bin. A tail outlet of the fluidized bed feeder is connected with an inlet of a cyclone material separator. The upper portion of the cyclone material separator is connected to the upper portion of a high-temperature melting furnace through a wind pipe. A solid particle collector is arranged on the bottom of the cyclone material separator. The solid particle collector is connected with a preheating furnace. The connecting position is arranged on the upper portion of the preheating furnace. The preheating furnace is located above the high-temperature melting furnace and communicates with the high-temperature melting furnace. An oxygen inlet and a molten slag outlet are formed in the bottom of the high-temperature melting furnace. Accordingto the uniform continuous feeding device, by means of the coordinative effect of the fluidized bed feeder and the cyclone material separator, continuous uniform feeding of materials is achieved.

The invention provides a horizontal boiler with SNCR and OFA arranged in a staggered manner and relates to an industrial boiler. The horizontal boiler with the SNCR and the OFA arranged in the staggered manner aims at solving the problems that a horizontal industrial coal powder boiler in the prior art is high in denitration cost, consequently, the NOx emission amount of an industrial coal powderboiler is high, the coal powder over-fire effect is poor, the adaptive capacity on load changes is poor, and the heat efficiency is low. The horizontal boiler with the SNCR and the OFA arranged in thestaggered manner comprises a combustor, a hearth, an upstream flue, a set of primary amino reducing agent spraying ports, a set of primary over-fire air spraying ports, a set of secondary over-fire air spraying ports, a set of secondary amino reducing agent spraying ports and two sets of temperature sensors; the combustor is installed at the front end of the hearth; the upstream flue is communicated with the top of the rear end of the hearth; the primary amino reducing agent spraying port and the primary over-fire air spraying port are fixedly installed on the side wall, from the front end tothe back end, of the hearth; and the secondary over-fire air spraying port and the secondary amino reducing agent spraying port are sequentially installed on the side wall of the upstream flue from bottom to top. The invention is used in the industrial boiler coal powder combustion field.

A combustion intensifying device in a furnace comprises two combustion chamber walls, two combustion chambers on the inner sides of the two combustion chamber walls, and oxygen supply fans located on the outer sides of the two combustion chamber walls. Each combustion chamber is composed of at least two cylindrical combustion intensifying chambers, the bottoms of the combustion intensifying chambers are communicated with one combustion chamber through fire outlets, and the tops of the combustion intensifying chambers are communicated with a waste heat boiler; turbulence oxygen supply channels are formed in the two combustion chamber walls, each turbulence oxygen supply channel comprises an annular oxygen conveying channel and a tangential oxygen spray channel, air outlets of the tangential oxygen spray channels are communicated with the combustion intensifying chambers, and air inlets of the tangential oxygen spray channels are communicated with oxygen supply fans on the outer sides of the two combustion chamber walls through the annular oxygen conveying channels. According to the device, a traditional combustion intensifying chamber with a rectangular section is replaced by multiple cylindrical combustion intensifying chambers, meanwhile, oxygen is supplied to the combustion intensifying chambers tangentially through the tangential oxygen spray channels so that the defects that two combustion chambers of a mechanical fire grate type domestic garbage incinerator is insufficient in combustion and black smoke is prone to being generated can be overcome, the aim of treatment from sources is achieved, and environment is protected.

The invention discloses a ferrite material for a heat-sensitive sensor. The ferrite material mainly contains the ingredients in percentage by weight: 16-25% of ZnO, 5-8% of MgO, 3-7% of CuO, 1-3% of NiO, 0.008-0.01% of Al2O3, 0.008-0.02% of Nb2O5, 0.003-0.01% of Bi2O3 and the balance of Fe2O3. The ferrite material for the heat-sensitive sensor is prepared mainly through the steps of weighing and mixing, carrying out vibrated-grinding, pelletizing, prefiring, sanding, carrying out spraying granulation and the like. By adopting the ingredients and the preparation method, the crystal grain of the ferrite material for the heat-sensitive sensor can be fine and uniform, the initial magnetic permeability can be improved, the sintering temperature can be lowered, the magnetic core sintered density can be improved, and the range of Curie temperature can be narrowed; the volatilization of zinc oxide can be inhibited, the specific temperature coefficient is increased, the maximum slope of magnetic permeability temperature change is high, and the temperature control accuracy is high; due to vibrated-grinding, large granules and agglomerated powdery materials in mixed powder can be crushed, so that the gluing and mixing are uniform.

The invention discloses a smokeless energy-saving air return furnace. The smokeless energy-saving air return furnace comprises a base and a combustor installed on the base, a fuel storage box, a driving device and a pulse igniter are installed inside the combustor, the pulse igniter is connected with a first electrode and a second electrode through a first wire and a second wire, an air bag cover is installed on one side of the combustor, a combustion chamber outer shell is installed at the top of the air bag cover, a heat insulation device is installed at the top of the combustion chamber outer shell, a combustion chamber inner shell is installed inside the combustion chamber outer shell, and a combustion chamber device is installed between the air bag cover and the combustion chamber inner shell. Before ignition, the driving device is firstly controlled to spray a certain amount of combustible liquid to solid fuel in a combustion chamber, then the pulse igniter works, the pulse igniter can control the first electrode and the second electrode to generate electric arcs, so that the combustible liquid in the combustion chamber is ignited, and the solid fuel in a combustion chamber body is quickly ignited under the combustion-supporting action of the combustible liquid, so that smoke is not generated.

The invention discloses a hazardous waste multiphase cooperative treatment device and a hazardous waste treatment method thereof, and relates to a hazardous waste treatment device and a hazardous waste treatment method thereof. The problem that a large amount of acid gas and incompletely combusted organic components and furnace slag are generated by incineration of hazardous wastes in an existingincineration method is solved. The hazardous waste multiphase cooperative treatment device comprises an air blower, a feeding machine, a waste liquid tank, a high-pressure oxygen meter, an ammonia water tank, a multiphase reactor, an ammonia water spray gun, a rapid cooler, a dust remover, an induced draft fan, a waste gas spray head, a waste gas tank and a second flue. The process method comprises the steps that solid waste is placed on an air distribution plate of a combustion chamber, the air blower introduces air into the combustion chamber, and the waste liquid tank introduces waste liquid into the combustion chamber for combustion decomposition and waste gas burnout; primary removal is carried out on nitrogen oxide in the flue gas; and the rapid cooler is used for performing secondary denitration and absorbing the heat of the flue gas, then the dust remover is used for filtering particles in the flue gas, and the induced draft fan is used for leading out the flue gas to enter anacid making procedure.