32results about How to "Large amount of dust" patented technology

The invention relates to a sintering flue gas mass-divided directional circulation and on-line denitration system. According to the technical scheme, the sintering flue gas mass-divided directional circulation and on-line denitration system comprises a sintering machine. Air boxes are arranged below trolleys of the sintering machine, and bottom outlets of the air boxes communicate with a gas flue pipeline. The sintering machine is divided into an ignition section, a machine head section, a flue gas fast heating section and a machine tail section in sequence in the advancing direction of the trolleys. The gas flue pipeline comprises a high temperature flue gas main flue, a circulatory flue gas main flue and a machine head ignition section flue. The outlets of the air boxes below the machine tail section and the flue gas fast heating section communicate with the high temperature flue gas main flue through fluidized bed reactors separately, the outlets of the air boxes below the machine head section communicate with a circulatory flue gas cover on the trolleys of the sintering machine through the circulatory flue gas main flue, and the outlets of the air boxes below the ignition section are connected with the machine head ignition section flue. The sintering flue gas mass-divided directional circulation and on-line denitration system is simple, compact in structure, high in waste heat recovery rate and low in denitration operation cost, denitration equipment investment is saved, and zero input of denitration catalysts and flue gas heating energy consumption is achieved.

The invention discloses a NOx emission reduction system based on ignition and sintering of a dry mixture. According to the technical scheme, the system comprises a sintering machine; bellows are arranged below trolleys of the sintering machine; the sintering is sequentially divided into four areas including a preheating and drying section, an ignition section, a flue gas quick-heating section and a tail section in the advancing direction of the trolleys; the bellows below the tail section are connected through fluidized bed reactors, a high-temperature flue gas main flue, a high-temperature flue gas dust remover, a high-temperature flue gas circulating fan and a high-temperature flue gas circulating pipe sequentially with a high-temperature circulating flue gas cover located above the preheating and drying section. With the system, the pollution emission amount is small, the recovery rate of waste heat of sintering flue gas is high, no outsourced denitration catalyst is used, and generation of NOx in the flue gas is effectively reduced.

The invention relates to a sintering flue gas zoned-circulating coupled soot autocatalysis and denitration system. According to the technical scheme, the sintering flue gas zoned-circulating coupled soot autocatalysis and denitration system comprises a sintering machine, wherein an air box is arranged below a trolley of the sintering machine, an outlet of the bottom of the air box is communicated with a flue gas pipeline, the sintering machine is sequentially divided into an ignition section, a machine head section, a rapid flue gas heating section and a machine tail section in the advancing direction of the trolley, the flue gas pipeline consists of a main flue and a main circulating flue gas flue, the machine tail section, the rapid flue gas heating section and the air box below the ignition section area of the sintering machine are communicated with the main flue, and the air box below the machine head section area is connected with a circulating flue gas cover above the sintering machine through the main circulating flue gas flue and a circulating flue gas dust remover. The sintering flue gas zoned-circulating coupled soot autocatalysis and denitration system is simple, good in denitration effect, high in residual heat recovery rate, small in occupied area, friendly to environment and low in device investment and operating cost and does not need denitration catalysts.

The invention provides an indoor air purification device for office use, comprising an air outlet upper cover, an octagonal main body and an air intake base, an air outlet is arranged near the center of the top of the air outlet upper cover, and a circle is arranged at the center of the bottom of the air inlet base. Shaped air inlet, the octagonal main body includes several aluminum alloy casing panels, reinforced transition pieces, a cavity, and an air purification module located in the cavity, the air purification module located in the cavity is made of honeycomb titanium dioxide on the surface Made of titanium tube with nanostructure, the titanium tube forms a curved loop structure inside the cavity, and a pressurizing device connected to the cavity of the octagonal body is arranged inside the air intake base, and the lower end of the intake base There are also base feet, which have good pressure resistance, strong PM2.5 adsorption capacity, large dust accumulation, and long service life.

The invention provides large-size efficient air purification equipment for a public place. The large-size efficient air purification equipment comprises an air inlet with a flange, an air outlet, provided with a flange, of a connection short pipe, a shell and a draught fan located in the shell, a particle adsorption device and a pressurizing device, and a base, and further comprises a washing device of the particle adsorption device and an anaerobic acidulation degradation device located at the bottom of the shell, wherein the washing device is located at the top of the shell; one end of the air outlet of the connection short pipe is further connected with an air-liquid separator; the particle adsorption device comprises a cavity; a titanium pipe is arranged inside the cavity; the surface of the titanium pipe is of a honeycomb-shaped titanium dioxide nano structure; the titanium pipe forms a bent loop structure in the cavity; the diameter of the titanium pipe is 3mm-10mm; and the large-size efficient air purification equipment has a good pressure-bearing capability, a strong PM2.5 (Particulate Matter 2.5) adsorption capability, large dust accumulation and long service life, and can also realize degradation washing of the titanium pipe.

The invention discloses a preparation method of a surfactant for detergents and a detergent composition comprising the surfactant. The detergent composition is strong in dirt-removing power, low-foam and easy to rinse. The invention further discloses a special detergent composition for clean clothes; the detergent composition comprises the surfactant, alcohol alkoxylate, fatty alcohol-polyoxyethylene ether, a water-soluble growth substance, an anti-redeposition agent, a chelating agent and water; oil stains, sweat stains and other pollutants can be well removed when the detergent composition is used for washing the clean clothes, fibers cannot be damaged, overhigh dust content of the washed clean clothes cannot be caused, and the cleanness performance requirement is met.