11482 results about "Incineration" patented technology

Process for removing mercury from flue gases of high-temperature plants, in particular power stations and waste incineration plants in which a bromine compound is fed to the multistage furnace and/or the flue gas in a plant section downstream of the furnace, the temperature during contact of the bromine compound with the flue gas being at least 500° C., preferably at least 800° C. The combustion is carried out in the presence of a sulphur compound, in particular sulphur dioxide. Subsequently to the furnace, the flue gas is subjected to an optional multistage cleanup for removing mercury from the flue gas, which cleanup comprises a wet scrubber and/or a dry cleanup.

What has been created is a plurality and a variety of processes and a variety of devices correspondingly supportive to each process, wherein, a new partnership between; (1) a heat absorbing radiator compressed air pipes/tubes and (2) a gas turbine engine or a reciprocating piston engine,—is used to recapture and reconvert the, otherwise wasted, heat energies expelled by engines, by factories, by smelting plants, by distillation plants, by chillers/coolers/freezers, by cooking ovens, by lamps/stoves, by trash burners, and the heat energies created by the solar heat on the desert/ocean water,—into electric power and finally into hydrogen-deuterium fuel,—by having the engine's tailpipes submerged in cold compressed air inside the heat absorbing radiator pipes in reverse air flow, to further drive and re-drive the same engine; wherein, in order to capture fusion heat energy the hydrogen bomb is detonated in the deep ocean to catch the flames by the water and the hot water is used to energize the compressed air inside the heat absorbing radiator pipes; wherein, in order to produce fusion energy, an abundant electric arc is passed across liquid deuterium or across gaseous deuterium by the electro-plasma torch and sparkplug in the internal combustion engine, and by detonating a dynamite inside a liquid deuterium; wherein diamond is produced by placing carbon inside the hydrogen bomb; and wherein, deuterium fusion flame is used first in smelting glass to large sizes before running an engine.

The invention provides a method for processing de-nitration on the boiler smoke, belonging to the environmental protective technique. The method comprises: ejecting ozone O3 into the low-temperature section of smoke channel of boiler whose temperature ranges from 110-150Deg. C; oxygenizing the nitric oxide NO into high-state nitrogen oxide as NO2, NO3 or N2O5; washing the smoke with alkali liquor to remove the nitrogen oxide in the smoke. Compared to other de-nitration method, said invention has higher efficiency, lower cost, and non-secondary pollution, while the absorption effect combined with alkali liquor can reach more than 80%. In addition, the invention can apply variable boiler devices, which is not relative to the burning condition of boiler.

The invention discloses a slurrying method of organic dangerous solid waste. The slurrying method of the organic dangerous solid waste can be used for preparing up-to-standard slurry for gasificationequipment feeding in a high-temperature gasification technology so as to realize the purpose of treating the organic dangerous solid waste by utilizing the high-temperature gasification technology, existing organic dangerous solid waste treatment methods including incineration, landfill, fermentation and the like are replaced, and after the prepared slurry is treated by the gasification equipment,treatment recycling and harmlessness of the organic dangerous solid waste can be realized.

The invention discloses a method for continuously treating domestic garbage, more specifically belongs to a method for continuously treating domestic garbage according to the process flows of pretreatment, crushing, dehydration, drying, cracking, incineration, etc. Dioxin C2H4O2 is not produced in the garbage treatment process; and the method can realize various requirements of massive and continuous treatment, reclamation (the energy in the garbage is stored in a manner of collecting hydrocarbon oil), energy saving, environmental protection, high efficiency, and the like, in domestic garbage treatment. The devices adopted in the method belong to standardized commodities for industrial use, and have the advantages of reliable operation, mature technology, simple structure and low investment. The method of the invention belongs to the continuous garbage treatment process, can completely and thoroughly implement reduction, harmless treatment and reclamation of mountains of domestic garbage, and is characterized by good novelty, creativity and industrial applicability.

The invention relates to a soil pollution thermal desorption restoration processing system, which belongs to a soil restoration processing system. The system comprises a feed system, a heat source system and a control system, and is characterized by further comprising a thermal desorption system and a tail gas processing device, wherein the thermal desorption system consists of a draught fan and a thermal extraction converter, and the tail gas processing device consists of a dust remover and an absorption tower. When the system is applied to processing polluted soil with main pollutants of volatile/semi-volatile organic compounds, compared with the like products in other countries, the equipment cost is only 1/3 to 1/5 of the same; the problem of secondary pollution probably brought about in the process of processing the polluted soil is thoroughly avoided; a temperature control system has better practicability; the running cost for each ton of the polluted soil is between 300 and 500 RMB, which is far low than the processing cost for hazardous landfilling and incineration of the polluted soil; and half of the purification effect of processing the polluted soil with the main pollutants of the volatile/semi-volatile organic compounds can reach between 70 and 80 percent.

The invention provides an oily sludge recycling and innocent comprehensive treatment process, which comprises the following four steps of: 1, pretreating oily sludge: adding water into the oil sludge, heating and stirring to form fluidized sludge, and separating in a stainless steel screen; 2, conditioning the oily sludge, adding a demulsifier and a flocculant into the separated fluidized sludge for conditioning the oily sludge; 3, performing centrifugal separation on three phases of the oily sludge: introducing separated oil into an oil-water separation system for recovering crude oil, conveying separated water to the oily sludge pretreatment step for recycling, drying the separated residual oily sludge, and solid impurities and floating slag which are separated in the oily sludge pretreatment, and introducing the dried substances into a rotary kiln incinerator; and 4, performing mixed combustion on the residual oily sludge and biomass, performing high temperature incineration treatment after the residual oily sludge, the separated solid impurities and floating slag, and the biomass are mixed in a rotary kiln to remove the secondary pollution of the oily sludge, and recovering afterheat from high temperature flue gas.

The invention provides a process, a system and equipment for converting household garbage without support combustion of the prior fuels, which relates to a process and equipment for processing garbage. The process is characterized in that the household garbage is sent into a gasification furnace or an incinerator after separating, dehydrating by rolling compaction and air-drying treatment; garbage fuel is converted in the furnace by a mode of gasification or incineration, and is subjected to baking, pyrogenation, gasification and carbon residue burn-out in the furnace; the converted synthesis gas is used for cleaning energy; waste heat of incineration is absorbed by heat-exchange equipment for reclamation; garbage rolling liquid is sent into a digesting machine for anaerobic fermentation so as to produce biogas, the biogas is used as auxiliary fuel of the incinerator, and the digested residue and residual liquid are used for fertilizing crops; and inorganic substances separated from the garbage are used as raw materials to manufacture bricks, and clinker discharged from the incinerator or the gasification furnace is used for producing cement or fertilizer. The process, the system and the equipment comprehensively utilize the garbage so as to achieve complete dissolving treatment, and the equipment has a simple structure and low investment cost, and is easy to popularize..

PCT No. PCT/JP97/00573 Sec. 371 Date Jan. 12, 1998 Sec. 102(e) Date Jan. 12, 1998 PCT Filed Feb. 27, 1997 PCT Pub. No. WO97/32161 PCT Pub. Date Sep. 4, 1997According to the present invention, boiler water is pressurized so that its boiling point is set at approximately 200 DEG C. to 320 DEG C. The boiler water is heated in at least two stages. Thermal energy of gases containing chlorine compounds is used to heat the water to its boiling point. Thermal energy of gases which do not contain chlorine compounds is used to heat the water from its boiling point until superheated steam of a given temperature is generated. The heating which uses the thermal energy of gases containing chlorine compounds is accomplished using the thermal energy from the combustion of pyrolysis gases obtained from a pyrolysis means in which waste material is supplied into a chamber containing a fluidized bed medium which has been heated to at least 300 DEG C., and a pyrolytic reaction is induced. The heating which uses the thermal energy of gases which do not contain chlorine compounds is accomplished using the thermal energy obtained from a char combustion means to combust char in which a char mixture consisting of unpyrolyzed residue and fluidized bed medium removed from the pyrolysis means is fluidized by a stream of air, and the unpyrolyzed residue is combusted.

The invention discloses a method for preparing charcoal activated carbon flammable gas biological oil by utilizing crop straws. In the method, a co-production process technique integrated with comprehensive processing of multiple varieties is adopted. The method comprises the following steps: smashing the collected crop straws by a smash machine so as to form straw powder with the particle size of 8-30 meshes; pressing and forming the straw powder material for pyrolysis; and in the process of pyrolysis, preparing straw charcoal and activated carbon on one production line through carbonization and activation processes, and simultaneously, recovering flammable gas and extracting biological oil. By using the method, fixed investment is greatly reduced, economic and social benefits are effectively increased, the problems of stack and incineration of the straws are solved, waste straw resources are further developed and utilized, and the blank in the same industry in China is filled.

Methods and systems for treating a waste stream in a waste treatment system involve performing a unit process of the waste treatment system by contacting the waste stream with oxyhydrogen-rich gas generated on-site by an oxyhydrogen gas generator that implements water dissociation technology. In a preferred embodiment, the oxyhydrogen gas generator involves applying a pulsed electrical signal to a series of closely-spaced electrodes that are submerged in the waste stream to produce oxyhydrogen-rich gas from a water component of the waste stream. Operation of the oxyhydrogen gas generator in the waste stream may accomplish one or more unit processes for waste treatment, such as conditioning, stabilization, thickening, and dewatering, among others. At least a portion of the oxyhydrogen-rich gas can be conveyed for a second use in the waste treatment system, such as a source of combustible fuel for incineration or power generation, for example.

PCT No. PCT/AT97/00201 Sec. 371 Date May 15, 1998 Sec. 102(e) Date May 15, 1998 PCT Filed Sep. 12, 1997 PCT Pub. No. WO98/12359 PCT Pub. Date Mar. 26, 1998In a process for working up combustion residues and slags from waste incineration plants or steel works slags, the slag is charged at a slag layer height of above 1.2 m into a converter (1), in which the molten slag is reacted with a metal bath (4) through which oxygen is blown. The oxygen is introduced into the bath (4) for cooling the submerged tuyeres (7, 8) in the form of air or along with CO2 or water vapor.

The present invention relates to environment protecting technology, and is especially one kind of sludge drying treatment process. The present invention is one low-cost combined sludge drying and utilizing process integrating microwave technology, aerobic fermentation technology and heat pump drying technology. The present invention is suitable for treatment of different kinds of sludge, and the sludge product has wide applications, including use as organic fertilizer, use as the material for composite organic fertilizer and building material, use as fuel for incinerating garbage and heating boiler, etc.

The invention discloses a low temperature Claus sulfur recovery process. The process mainly comprises a thermal reaction section, a catalytic reaction section and a tail gas incineration section, wherein in a combustion furnace of the thermal reaction section, partial hydrogen sulfide reacts with oxygen to be converted into sulfur dioxide, the hydrogen sulfide and the sulfur dioxide undergo a Claus reaction to generate sulfur, and process gas after sulfur separation enters the catalytic reaction section; in the reactor of each stage of the catalytic reaction section, the hydrogen sulfide and the sulfur dioxide under conventional Claus reaction, catalyst reactivation, sub-dewpoint and sub-solid point low temperature Claus reaction in sequence; after the catalyst reaction section, the tail gas which is subjected to sulfur separation enters the tail gas incineration section, and the tail gas is incinerated and exhausted in the tail gas incineration furnace. The process adopts a lower reaction temperature, contributes to performance of chemical equilibrium towards the direction of sulfur generation, so that conversion rate and recovery rate of sulfur are improved. Moreover, the process has the advantages of simple process flow, relative small equipment and investment, low operation cost and more contribution to environmental protection. The invention also discloses a device for the low temperature Claus sulfur recovery process.

The invention discloses a refuse incineration fly ash solidification/stabilization treatment method comprising the following steps of: firstly, sufficiently mixing a heavy metal stabilizer and water into a solution; mixing the solution, refuse incineration fly ashes and a little amount of cement, stirring and curing so that fly ashes has double-effect stabilization and certain intensity at the same time; finally, landfilling the fly ashes in a domestic refuse landfill site. The refuse incineration fly ash solidification/stabilization treatment method realizes fly ash decontamination and achieves the purpose of slightly increasing volume at the same time, thereby increasing the overall efficiency and the economical efficiency of a fly ash treating and disposing system and solving the problem of large increasing volume after the traditional cement solidification treatment.

The invention discloses a method for resource recovery and classification utilization of urban domestic wastes, which at least comprises the following steps of: a magnetic separation step, a waste cutting step, a elutriation flotation step, a waste extrusion dehydration step, an anaerobic treatment step and a sludge deposition concentration step; scrap iron is separated by the magnetic separationstep for the recovery and utilization of the scrap iron; anaerobic organic matter is crushed by the waste cutting step; pasty organic matter and block non-anaerobic wastes are thoroughly separated bythe elutriation flotation step so as to allow the pasty anaerobic organic matter to enter a biogas generation pool or tank for an anaerobic reaction and to allow the clean non-anaerobic wastes to be extruded, dehydrated and dried for individual treatment, and the waste decrement is above 90%; after elutriation, the left 10% non-anaerobic wastes are prepared into fuel oil by a cracking reaction; or are recycled through screening with no screening difficulty being caused by dust and organic matter containing in the wastes; or are delivered into a gasifier for fuel gas production, which preventsthe energy consumption of water-containing organic matter during waste incineration treatment, and greatly increases the thermal efficiency of waste treatment.

The invention discloses an anaerobic fermentation-incineration combined treatment method for organic wastes. The anaerobic fermentation-incineration combined treatment method is characterized by comprising the following steps of: firstly, crushing the organic wastes, feeding the crushed organic wastes into a slurry mixing pool to be mixed with water or a methane solution to form a fermentation raw material, and feeding the fermentation raw material into an anaerobic fermentation tank for anaerobic fermentation treatment; secondly, performing solid-liquid separation treatment on residual slurry to form the methane solution and dehydrated methane slag; thirdly, making partial methane solution flow back to the slurry mixing pool, discharging surplus methane solution outwards to a sewage treatment facility; fourthly, feeding the dehydrated methane slag into a methane slag drying machine by taking methane generated by the anaerobic fermentation tank as fuel for heating, wherein the moisture content of the dried methane slag is made lower than 40%; fifthly, incinerating the dried methane slag subjected to drying treatment by using the methane collected from the anaerobic fermentation tank as auxiliary fuel for methane slag combustion; and sixthly, producing steam or hot water by a waste heat boiler by using high-temperature flue gas discharged from a methane slag incineration furnace, and supplying the steam or the hot water to the fermentation tank to serve as a hot source for heating or heat insulating. According to the invention, the anaerobic fermentation and the incineration treatment are organically combined, the advantages of the anaerobic fermentation and the incineration treatment are fully exerted, and the reduction, harmlessness and the recycling of rubbish are facilitated.

The present invention discloses one kind of microporous teflon film for treating high temperature fume and dust and its preparation process. The preparation process includes mixing powdered teflon resin and powdered catalyst, adding liquid lubricant to the mixture, extruding, rolling, longitudinally stretching, transversely stretching, heat setting and other steps. The microporous teflon film for treating high temperature fume and dust has simple preparation process and low cost. It has pore size of 0.5-5 micron and dioxins eliminating rate at 200 deg.c as high as 95-98 %. It may be applied widely for high temperature tail gas treatment in refuse burning treatment plant, refuse burning power plant, coal burning power plant, cement mill, etc.

Provided is a heavy metal treating agent and a heavy metal pollutants treating method. The invention provides a medicament and a treating method thereof. The medicament is used for treating heavy metal pollutants, like burning ash and fly ash discharged from a garbage burning field, soil polluted by heavy metal, sludge generated from waste water treatment, and heavy metal contained in the waste water discharged by factories. Heavy metal treating agent comprising piperazine dithiocarboxylic acids salt and reductible composition is used. In terms of reductible composition, water soluble bivalent iron compound and aliphatics Alpha - hydroxycarboxylic acid and/or salt, or sulfurated bi-alkali metal salt are preferably used. With the heavy metal treating agent, harmful cation species heavy metal like lead, zincum, cadmium, mercury, arsenic, selenium, and hexavalent chromium can be treated by encapsulation in a high concentration, and harmful anion species heavy metal like hexavalent chromium, arsenic and selenium can be treated by encapsulation in a high concentration.

The invention discloses a method for comprehensively treating and utilizing household garbage incineration slag.. The method comprises the following steps: A. screening and primary crushing of slag; B. primary magnetic separation; C. secondary crushing: the slag subjected to the primary magnetic separation is conveyed into a flushing water continuous injection type sanding machine through a conveying belt, the slag is crushed in the sanding machine, and the crushed slag granules flow out of the sanding machine together with the flushing water; D. secondary magnetic separation: the mixture of the slag and the flushing water flowing out of the outlet of the sanding machine flows by a drum magnetic iron remover, and magnetic metals contained in the slag are picked out by secondary magnetic separation; E. buoyancy gravity concentration on other metals; and F. precipitation of non-metallic tailings. Since other metals are picked up by secondary magnetic separation and buoyancy gravity concentration, the metal content in the slag is effectively decreased, the quality of bricks or cement is guaranteed when the treated slag is used to make bricks or cement; and since the flushing water is continuously injected into the sanding machine, most of disgusting odor can be removed and dust is eliminated, and the water circulation manner is adopted, the advantages of saving energy and protecting the environment are achieved.

The invention discloses a method for treating waste incineration fly ash by using plasmas. The method comprises the following steps of: regulating the weight ratio of CaO to SiO2 in waste incineration fly ash; then granulating and compressing into blocks for pretreatment; sending the treated fly ash into a metal melting pool in a plasma reaction furnace through a dividing wheel and quenching fly ash melts into granules through water; and harmlessly treating tail gas in the furnace through a treatment system. The invention solves the problem of molten glass during treating the waste incineration fly ash by adopting plasma equipment, the problem of bridging in a feeding process, the problem of jamming of a feeder, the problem of pipeline blockage caused by the diffusion of the fly ash alongwith the tail gas, the problem of obtaining glass harmless to the environment by retreating the melts and the problem of tail gas innocent treatment.

An electromagnetic resonator may be used for efficient heating and/or reaction of materials. More particularly, resonator-based systems may be used for efficient pyrolysis, gasification, incineration (or other similar processes) of feedstock including but not limited to biomass, petroleum, industrial chemicals and waste materials using RF resonators and adaptively tunable RF resonators. A processing architecture based on the use of resonators is presented.

A reheat-and-regenerating type thermal power plant (A) using Rankine cycle has a water feed bypass (BW) which suppies high temperature fluid (28) produced in a large incineration plant (27) to a heat exchanger (29) and by which confluent feed water (Wg) resulting from the confluence of separated condensed-water (32), separated low temperature feed water (33), separated medium temperature feed water (34) and separated high temperature feed water (35) is supplied to a superheat conduction pipe (3a) through a heat exchanger conduction pipe (29a). The water feed bypass (BW) is installed separately from a feed water path (W), thus insuring an efficient use of the high temperature fluid (28) produced upon incinerating a huge amount of combustible wastes in the large incineration plant (27).