58results about How to "Reduce harmful gas content" patented technology

The invention provides a type of marine organism shell powder paint, mainly comprising biosynthesis adhesive, sodium hexametaphosphate, shell powder, emulsifier, and citric acid mono. The marine organism shell powder paint is purely natural, environment-friendly, of simple preparation and of low manufacturing cost, and has no toxic effects on human body.

A radiant-tube heater of oxygen-enriched combustion belonging to the field of environmental protection relates to a new method of oxygen-enriched combustion technology applicable to radiant-tube heater, to develop a combustion system of novel industrial radiant tube that combusts the low-calorific value gas (or other fuel gas) to increase the heat utilization, which is characterized in that the heater comprises oxygen or oxygen-enriched air (1), fuel (2), mixed gas (3) of oxygen or oxygen-enriched air and smoke gas, fuel gas (4), smoke gas (5) in the radiant tube, smoke gas (6) discharged from the radiant tube, a smoke gas injector (7), a combustor (8), a boiler wall (9) and a radiant tube (10). The heater has low combusting temperature, low content of harmful gas like NOx in the smoke gas and high heat efficiency, and is good for collecting the smoke, in particular to CO2 and increases the stability and reliability of the system.

The invention provides a processing method of a thermoplastic filament composite material excrement leaking plate. The method is characterized by comprising the steps of mixing a thermoplastic polymer and an additive; plasticizing through a screw extruder to obtain molten compound; feeding the molten compound and continuous fiber yarns into the screw extruder; shearing through a screw; dispersing; melting; forming through a die; or heating, melting and extruding the fiber reinforced thermoplastic plastic particles, and then performing injection molding; or braking to soften a fiber reinforced thermoplastic plastic sheet, positioning on the die, and then pressing to form. According to the method, the step related to semi-finished products is removed; the raw materials are directly processed to obtain finished products, so that the processing cost is reduced, and the influence of secondary processing on material performance can be reduced.

The invention provides a minitype flue gas waste heat recovery and storage integrated hot water supply device, in particular relates to a minitype flue gas waste heat recovery and storage integrated hot water supply device of a coal heating furnace and a biomass heating furnace, belonging to the technical field of new energies and energy saving. The minitype waste heat recovery and storage integrated hot water supply device comprises a heat storage type water tank (1), a flue pipe (3), a temperature controller (11), a minitype circulating pump (17) and a water tank heat insulator (14). When the device is combined with the conventional heating furnace for use, the heat utilization efficiency can be improved to above 90 percent, comfortable and constant indoor temperature is provided, and a large quantity of energies can be saved while the heating comfort of discrete residents in small towns and countries is greatly improved.

The invention relates to an additive for gasoline, in particular to an additive for gasoline, which can purify the tail gas discharged by a vehicle using the gasoline after being added into the gasoline and can also be used for directly replacing fuel. The additive of the invention contains methanol or ethanol, isopropanol, isobutanol, xylene, toluene, hydrogenated naphtha, isobutane, methyl tertiary butyl ether, benzyl alcohol, isopropylamine, isooctane, methyl isobutyl ketone and isohexane, wherein the weight ratio of the alcohols of the methanol or the ethanol, the isopropanol and the isobutanol accounts for 47%-55%, the weight ratio of the xylene and the toluene accounts for 19%-31%, and the weight ratio of the hydrogenated naphtha, the isobutane, the methyl tertiary butyl ether, the benzyl alcohol, the isopropylamine, the isooctane, the methyl isobutyl ketone and the isohexane accounts for 16%-23%. The invention has the advantages that after the additive is used, the content of the harmful gas in the tail gas of vehicles can be lowered, and the air pollution can be reduced, thereby reducing the damage of the tail gas of vehicles to the ozonosphere in the atmosphere and reducing the conditions of causing global warming.

The present invention discloses one kind of additive for gasoline and diesel oil and its preparation process. The additive consists of naphtha 1-59 wt%, methanol 10-79 wt%, triethanolamine 1-40 wt%, isopropanol 1-39 wt%, tetrahydrofuran 1-39 wt%, and butanol 1-45 wt%, where, naphtha may be replaced with benzene and methyl acetate, triethanolamine with diethanolamine, and tetrahydrofuran with ethyl tertiary butyl ether. The preparation process of the additive includes the steps of mixing isopropanol and methanol, adding naphtha after stilling, and adding the other components to obtain the product. The additive for gasoline and diesel oil may be replace gasoline and diesel oil partially to reach environment protecting and energy saving effects.

The invention discloses steel 27Cr2Ni3SiMn2Mo for a spinner roller and a preparation technology thereof, and belongs to the technical field of process metallurgy. The steel 27Cr2Ni3SiMn2Mo comprises: by weight, 0.26 to 0.32% of C, 1.75 to 1.95% of Si, 1.75 to 1.95% of Mn, 1.75 to 2.05% of Cr, 0.52 to 0.62% of Mo. 0.15 to 0.25% of V, 3.10 to 3.50% of Ni, less than or equal to 0.02% of S, less than or equal to 0.02% of P and the balance Fe. The preparation technology comprises intermediate-frequency smelting, refining, forging, machining, air quenching and tempering. The preparation technology adopts an electroslag remelting technology, realizes material secondary refining, reduces content of nonmetal impurities and harmful gas, and improves a macroscopic structure and a microstructure of a material. The steel 27Cr2Ni3SiMn2Mo obtained by the preparation technology comprises uniform chemical components, has a compact microstructure, uniform hardness, good impact toughness and no decarburized layer on the surface. The preparation technology improves material integrated performances.

The invention relates to mixed flammable incense and a manufacturing method thereof. The mixed flammable incense comprises an igniting raw material and an incense burning main body raw material, wherein the proportion of the igniting raw material and the incense burning main body raw material is (1:99)-(1:20), the igniting raw material is formed by 15-30 parts of potassium perchlorate, 8-15 parts of antimony sulfide, 3-8 parts of aluminum powder, 0.5-2 parts of barium nitrate, 0.8-1.5 parts of manganese dioxide and 2-3 parts of adhesive, the incense burning main body raw material is formed by aggregate, a binding material, spice, pigment and rosin, and the mixed flammable incense is prepared through squeezing after the igniting raw material and the incense burning main body raw material are completely mixed. The mixed flammable incense disclosed by the invention has the characteristics that the igniting is easy, the burning is full, the adaptive surface is wide, and the like.

The invention discloses a clean incinerator. The clean incinerator comprises an incinerator body, wherein a hearth is arranged in the incinerator body, a rotation shaft which is vertically distributedis arranged in the center of the bottom of the hearth, a stirring arm is arranged on the rotation shaft, primary oxygen supply ports are formed in the stirring arm, a slag discharge channel is arranged at the portion, close to the rotation shaft, of the bottom of the hearth, a high-temperature combustion area is formed in the upper portion of the hearth, a vortex-shaped secondary combustion chamber is arranged in the high-temperature combustion area and is internally provided with a horizontal vortex combustion channel, and a smoke outlet is formed in the upper portion of the horizontal vortex combustion channel. According to the clean incinerator, the standing time of exhaust gas in a high-temperature area in the hearth can be prolonged, then harmful gas in the exhaust gas can be sufficiently combusted and decomposed, the content of harmful gas in the exhaust gas is lowered, and thus the pollution to the environment is lowered.

The invention relates to an ecological cultivation method with health care fermented feed matched with a probiotic fermentation bed. The method includes the steps that first, probiotic fermentation is carried out, wherein the probiotic fermentation comprises anaerobic fermentation of anaerobes and aerobic fermentation of aerobic microorganisms; second, the probiotic fermentation bed is prepared, wherein various raw materials for preparing the material of the fermentation bed are evenly mixed so as to obtain organic bedding, bacterium solution is inoculated for fermentation, and the organic bedding contains saw dust, rice husks, bran and first compound Chinese herbal medicine; third, the fermented feed contains corn, bean pulp, vitamins, microelements, mineral substances, amino acids, other additives, second compound Chinese herbal medicine and the like, and microorganisms are added into the feed components for fermentation. The ecological cultivation method has the advantages that water can be purified, and hidden danger to health of hogs caused by a water source is blocked; the using amount of the microelements is reduced, resources are saved, emissions are reduced, and the environment is protected; no antibiotics or residue exists, and food safety and human health are guaranteed; the Chinese herbal medicines have the functions of being resistant to disease and promoting growth and can replace antibiotics.

The invention discloses an aftertreatment device for motor vehicle exhaust. The aftertreatment device comprises a first square pipe; a second square pipe is fixedly mounted on the outer side of the first square pipe; a first round pipe is mounted at one end of the first square pipe; round plates are symmetrically arranged inside the first square pipe; and first supporting plates fixedly connectedwith the inner wall of the first square pipe are rotationally connected on the outer sides of the round plates. The aftertreatment device has the beneficial effects as follows: the aftertreatment device is simple in structure and convenient to operate, the condition that chippings produced by breakage of the aftertreatment device for the motor vehicle exhaust after collisions enter an exhaust pipeto block the exhaust pipe can be avoided, the contact time of the exhaust and a catalyst can be prolonged, the contact area of the exhaust and the catalyst can be increased, the temperature of the exhaust can be reduced, the exhaust can reach the optimal catalytic temperature, mist of the liquid catalyst can be mixed in the exhaust when the exhaust is about to be discharged out of the exhaust pipe, thus the exhaust is further degraded, and the practicability is high.

The invention discloses wear-resistant steel which is prepared from, by mass, 0.20%-0.30% of C, 0.10%-0.35% of Si, 0.40%-1.50% of Mn, 0.010% or less of P, 0.0020% or less of S, 0.010%-0.030% of Nb, 0.050% or less of Cu, 0.10%-0.50% of Mo, 0.010%-0.030% of Ti, 0.10%-0.90% of Ni, 0.3%-0.9% of Cr, 0.001%-0.0050% of Ca, 0.01%-0.03% of V, 0.0010%-0.0030% of B, 0.020%-0.060% of Al and the balance Fe andimpurities. Influences of large-particle inclusions in a steel plate on the stress of the steel plate are reduced, and the phenomenon that a casting blank and the steel plate are likely to crack whenmachined is relieved.

The invention discloses antibiotic-free fodder. Black charcoal formed by combustion of crop straws, wood vinegar and extracts of traditional Chinese medicine are added in the fodder. By the antibiotic-free fodder, rapid growth of livestock can be effectively guaranteed, and food safety of meat, eggs and milk is benefited.

The invention provides an ultra-light low-frequency wire or cable for aerospace use. The ultra-light low-frequency wire or cable for aerospace use is characterized by comprising a single core or multiple cores, wherein each core comprises a compressed light conductor which is formed by twisting multiple silver-plated copper monofilaments or silver-plated copper alloy monofilaments; an ultrathin insulating layer which is extruded by a crosslinking-tetrafluoroethylene ethylene copolymer material through high-temperature extrusion equipment and is crosslinked by irradiation through an electron accelerator is arranged on the periphery of each conductor; a shielding layer which is unidirectionally wound by multiple silver-plated copper wires is arranged on the periphery of each insulating layer; and a light sheath layer which is extruded by a crosslinking-tetrafluoroethylene ethylene copolymer through high-temperature extrusion equipment and is crosslinked by irradiation through the electron accelerator is arranged on the periphery of the shielding layer. The ultra-light low-frequency wire or cable has the advantages that by the light conductors, the ultrathin insulating layers and sheath layer and the unidirectionally wound shielding layer, the ultra-light low-frequency wire or cable has the characteristics of light weight and small outer diameter, simultaneously has the advantages of extreme low temperature resistance, high temperature resistance, irradiation resistance, vacuum atom oxygen resistance, high insulating cutting strength, vacuum air escape resistance and the like, is low in content of harmful gases generated by insulated and non-metal materials combustion and escape, and is suitable for signal transmission, control transmission and energy transmission between electrons and electric appliances, in a low-frequency environment, on a spacecraft, a space station and other aerospace equipment in an aerospace environment.

Provided is a thermal plastic reinforced composite feces leaking plate. Feces leaking plate bodies are provided with feces leaking holes, connecting devices are arranged on the two sides or the peripheries of the feces leaking plate bodies, and the connecting devices are used for connection between the feces leaking plate bodies. Each connecting device comprises a hook mechanism and a plugging structure or a splicing structure. The feces leaking plate is made of a thermal plastic reinforced composite, and the connecting devices comprise hooks, hinges, bolts and clamping grooves. By means of the feces leaking plate, the feces leaking plate bodies can be quickly and stably connected.

The invention discloses a continuous compound energy supply system. The continuous compound energy supply system comprises a distributed energy system, a photovoltaic greenhouse system, a grid-connected system and an electric energy storage device with the output end connected to the grid-connected system. By the adoption of the continuous compound energy supply system, the utilization efficiency of energy reaches over 85% and meets the legal and policy requirements of development thermal energy gradient utilization and energy gradient utilization in China; and restriction on a photovoltaic greenhouse by the environment temperature and the weather conditions is eliminated, the bottleneck of original photovoltaic agricultural development is broken, and a new route and a new direction are provided for green agricultural production.

The invention discloses an excrement scraping device. The excrement scraping device comprises an excrement scraping plate framework and a drawing device, wherein movable excrement scraping plates are fixed on the excrement scraping plate framework; lower edges of the movable excrement scraping plates are matched with the bottom surface profiles of excrement leaking tanks; a horizontal shaft is arranged in the middle of the drawing device, and vertical guide holes are formed in upper parts of the movable excrement scraping plates and matched with the horizontal shaft for sleeving. The excrement scraping device is simple and reasonable in structure, the excrement scraping plate framework performs parallel movement along guide rails, the height position of the excrement scraping plate framework is not changed, meanwhile, the excrement scraping plate framework is used for carrying a urine leaking tank scraping plate to reciprocate along a straight line, the movable excrement scraping plates can swing up and down as required and have arc structures; when the movable excrement scraping plates move to excrement collection tanks, concave arc surfaces are stressed and can be attached with the bottoms of the excrement leaking tanks, and the cleaning is thorough.

The invention discloses a cattle raising method and belongs to the technical field of cattle breeding. The cattle raising method includes the steps that a cattle farm is constructed in a region far away from a polluted area, wherein the cattle farm comprisesbarns and an open-air sports ground arranged around the barns; the barns are provided with deodorant mats, and the barnshave adjustable heightso as to controlair circulation, and the open-air sports ground is divided into rotation grazing areas by fences, and cattle are cultured in the barns and the open-air sports ground and fed every morning;except bad weather, the cattle are driven into the rotation grazing areas in the open-airsports ground for free activitiesin theafternoon; the barnsare sterilized every week, and the cattle are regularly vaccinated. The cattleraising farm mainly improves the barns, and solves the problems of poor thermal insulation and heat preservationeffects of the barns, bad smell in the barnsand poor airquality. The cattleraising method using the cattle farmcan provide healthy and suitable growth environment for the cattle and increases the time of outdoor activities, so that the cattle have low morbidity rate and grow fast.

The invention relates to the field of iron and steel smelting, in particular to a low-cost well-formed battery shell steel and a production method thereof. The low-cost well-formed battery shell steel is prepared from components in percentage by mass, 0.008%-0.02% of C, 0.1%-0.3% of Mn, smaller than or equal to 0.01% of Si, 0.050%-0.10% of Als, smaller than or equal to 0.015% of P, smaller than or equal to 0.0020% of S, smaller than or equal to 0.004% of N, smaller than or equal to 0.01% of Cu, smaller than or equal to 0.01% of Ti, smaller than or equal to 0.002% of T [O] and the balance of Fe and inevitable impurities, wherein T [O] is an oxidation inclusion; T [O] in steelmaking is the content of oxidation series inclusions, the deoxidation time can be shortened, the inclusions in steel are reduced, and a steel plate formed through follow-up punch forming has more excellent machining forming performance; the steel toughness is improved, the steel anisotropy is reduced, and the process is matched, so that the steel has good yield strength elongation and good forming performance.

The invention belongs to the field of forging, in particular to a design method for 9Ni large forge piece construction forming. The design method is suitable for large-section forge piece forming andimproving quality reliability of a large force piece and is used for solving the problems of center hole shrinkage, loosening and other problems hard to control in a traditional large forge piece manufacturing technology. The design method comprises the technologies of smelting, continuous casting blank surface washing and milling, vacuum packaging, high-temperature heating, high-pressure forgingand welding, forging and forming and the like. The metal traceless construction thought is adopted, a plurality of pieces of homogenized base metal are subjected to large deformation at the high temperature after being subjected to surface cleaning and vacuum packaging, metal solid connection is achieved, and an interface is sufficiently closed up. The core thought is breaking the whole into partsand making large from small, the large component homogenizing preparing technology is changed, the component breaking limit is broken through, and the quality reliability of a large forge piece is enhanced.

The present invention discloses an engine oxygen-increasing, pressure-regulating and energy-saving device which comprises a box body, a gas filtering apparatus and a gas flow regulating valve. The gas filtering apparatus divides the inner cavity of the box body into a cavity chamber before filtering and a cavity chamber after filtering. A pressure regulating cavity chamber is arranged in the cavity chamber after filtering. The cavity chamber before filtering is provided with a general air inlet. The pressure regulating cavity chamber is provided with a general air outlet. The general air outlet is communicated with the vacuum pipe of the air throttle of the engine. The gas flow regulating valve is arranged on the cavity wall of the pressure regulating cavity chamber and runs through the pressure regulating cavity chamber. The gas flow regulating valve is matched and connected with the cavity wall of the pressure regulating cavity chamber by screw threads. A sealing device is arranged at the position that the gas flow regulating valve and the pressure regulating cavity chamber are matched with each other. An indirect gas passage is arranged in the valve body of the gas flux regulating valve. The inlet of the gas passage is exposed outside the cavity chamber after filtering. The outlet of the gas passage is exposed outside the pressure regulating cavity chamber. The device is widely applied on the engine of a fuel-engined vehicle.

The invention relates to a straw fuel warm air air-conditioning heating device which comprises an air supply device, a combustion chamber, a heat exchanger and a connecting bracket, wherein the combustion chamber is arranged at the upper end of the air supply device, the heat exchanger is arranged at the upper end of the combustion chamber, and the connecting bracket is arranged on an air air-conditioning heating device host computer which comprises the heat exchanger and the combustion chamber; the heat exchanger comprises at least three levels and comprises a first-level heat exchange segment, a second-level heat exchange segment and a third-level heat exchange segment, wherein the first-level heat exchange segment is connected with the combustion chamber, the second-level heat exchange segment is arranged at the upper end of the first-level heat exchange segment, and the third-level heat exchange segment is arranged at the upper end of the second-level heat exchange segment; a smoke exhaust hood is arranged at the upper end of the third-level heat exchange segment; a smoke gas and smoke dust purifier is arranged at the upper end of the smoke exhaust hood; and the smoke exhaust hood and the smoke gas and smoke dust purifier are connected through a bent pipe. The invention solves the technical problems of difficult heating in winter and serious pollution of traditional villages, towns and villages; the straw fuel warm air air-conditioning heating device has the advantages of full combustion of the combustion chamber, energy saving and emission reduction, low energy consumption, lowest price consumption, safe and convenient use, simple maintenance and repair, energy saving and environment protection and the like.

The invention provides coal mine accident prevention and control operation environment detection equipment which comprises a detection device, a communicating pipe is fixed to the right end of the detection device, a mixing device is fixed to the upper end of the communicating pipe, an exhaust fan is fixed to the right end of the mixing device, and an air inlet pipe is fixed to the right end of the exhaust fan. A quantitative gas inlet device is fixed to the right end of the air inlet pipe, a cleaning device is fixed to the lower end of the air inlet pipe, quantitative gas at different heightscan be well collected through the quantitative gas inlet device, and therefore the different gas contents can be detected, and when the gas content at a certain height needs to be measured, the rotating nut is rotated to be not in contact with the plate body, so that the screw can be prevented from driving the plate body to move up and down, the height of air entering the plate body can be well adjusted, and the content of gas in a coal mine operation environment is kept within a safe range.

The invention belongs to the technical field of hazardous waste treatment, and particularly relates to a viscous hazardous waste disposal method. Viscous hazardous waste needing to be disposed is putin a waste storage pond of a storage bin through a transport vehicle, and transport preparation work of the viscous hazardous waste is completed; the viscous hazardous waste in the storage bin is conveyed to a viscous hazardous waste disposal unit through a pushing device to be pre-treated; and the pre-treated viscous hazardous waste is connected to a classification treatment device to be specifically separated. As the viscous hazardous waste can be classified, equipment can carry out disposal work as for different forms generated after the viscous hazardous waste is separated, the waste disposal capacity of the equipment is effectively improved, better environment-friendly and economic benefits are achieved, and the harmless and resourceful energy saving and emission reduction effects areimproved.

The invention discloses a bottom pouring type purification smelting device and method, and belongs to the technical field of casting. The smelting device comprises an annular bottom argon blowing device and a bottom pouring device; the bottom argon blowing device is arranged at the bottom of a pouring ladle or a crucible, the upper end of the bottom argon blowing device is detachably connected with the bottom of the pouring ladle or the crucible, the bottom end of the bottom argon blowing device is connected with an argon feeding pipe, argon enters alloy liquid in the pouring ladle or the crucible from the argon feeding pipe through the bottom argon blowing device, and the alloy liquid is purified; and the bottom pouring device is a rod-like pulling device which is inlaid in a middle through hole of the bottom argon blowing device or a plate-like pulling device which is arranged below the bottom argon blowing device. When the smelting device is used, the argon is fed into melt to purify the melt through the bottom argon blowing device, then, the bottom pouring device is moved downwards or removed for bottom pouring type pouring. Through the bottom pouring type purification smeltingdevice and method, the bottom argon blowing and bottom pouring functions can be achieved at the same time, the alloy liquid can be purified better, and accordingly, the quality of the alloy liquid isimproved.

The invention discloses a steel ingot mould and a process for producing a fan-shaped electrode, and belongs to the technical field of electroslag re-melting. The steel ingot mould solves the technical problems such as a complex process, high production cost, high production efficiency, high impurity content, severe surface sand adhesion, difficult surface clearing and severe integral deformation during casting of a relatively long electrode in the prior art. The steel ingot mould comprises an upper mould, a lower mould, a fixed plate and a lifting lug, wherein the lower mould is equipped with a mould cavity; a casting rounded corner is arranged on the mould cavity; the lifting lug is fixedly connected onto the upper mould; both the upper mould and the lower mould are equipped with fixed plates; and a gap is formed between the fixed plate of the upper mould and the fixed plate of the lower mould. The process comprises the following steps of: smelting molten steel; pouring the molten steel into the mould in an inclined mode; and performing de-molding.

The invention discloses an environment-friendly emission-reducing biological fermented feed for pigs, which is made by mixing well a solid fermentation substrate and a fermentation bacterial liquid, and carrying out aerobic fermentation and facultative anaerobic fermentation alternately, wherein the solid fermentation substrate comprises corn, soybean meal, expanded soybean, wheat and branch; thefermentation bacterial liquid is made by activating and propagating a composite fermentation strain of Bacillus megaterium, Bacillus licheniformis, Bacillus pumilus, Lactobacillus plantarum, Enterococcus faecalis, and Candida utilis. The environment-friendly emission-reducing biological fermented feed for pigs helps reduce the emission of harmful gases from pig houses, improve the animal growth environment, promote animal body health, and benefit the eco-environment protection.

The invention relates to the technical field of boilers, in particular to an industrial coal-fired boiler. The industrial coal-fired boiler comprises a bottom frame, a boiler body, a crawling ladder and a sealing mechanism, a plurality of supporting rods are arranged at the top of the bottom frame, the boiler body is arranged at the top ends of the supporting rods, the boiler body is of a hollow structure, a pot cavity is formed in the boiler body, a furnace body is arranged in the pot cavity, and the crawling ladder is installed on one side of the boiler body. Convenience is brought to use ofthe industrial coal-fired boiler, a platform is installed at the top end of the boiler body, and people can stand on the upper edge to carry out operation on the top end of the industrial coal-firedboiler through the platform; and hot gas and smoke dust generated by combustion in a furnace cavity are discharged out of the industrial coal-fired boiler through a steel pipe, and when the hot gas and the smoke dust pass through the steel pipe, heat in the hot gas and the smoke dust can be transferred to the pot cavity through the steel pipe to heat water in the pot cavity, so that the heat of waste gas is reused, energy consumption is reduced, and the economic benefits are increased.

The invention discloses a disease preventive raising method for chicken with aroma of cinnamon leaves, and relates to the field of chicken raising. The disease preventive raising method includes chicken house preparation, raising management and feeding management. The chicken house preparation includes laying a layer of fermented litter with treated pomelo peel in each chicken house; the feeding management includes feeding the chicken with chicken feed with the aroma of the cinnamon leaves, adding disease preventive agents into the chicken feed on a daily basis and feeding the chicken with thechicken feed and the disease preventive agents on a daily basis. The disease preventive raising method has the advantages that the feeding management is carried out, environmental conditions of the chicken houses are optimized, accordingly, the contents of harmful gas in the chicken houses can be effectively reduced, the immunity and the disease resistance of the chicken can be improved, and theincidence can be reduced; use of medicines can be reduced in raising procedures, and the chicken is high in weight gain speed and good in meat quality.