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760results about "Electrostatic separation details" patented technology

Device and method for removing PM 2.5 from smoke

The invention discloses a device for removing PM 2.5 from a smoke. The device is characterized in that: the device comprises a removing tower, a wet electrical dust precipitator and one or more wetting spray apparatuses; the lower part of the removing tower is provided with a smoke inlet end; the smoke inlet end of the removing tower is provided with a particle charging zone and a mixing coagulation zone; the particle charging zone is divided into a positive corona discharging zone and a negative corona discharging zone; an anode is arranged in the positive corona discharging zone; a cathode is arranged in the negative corona discharging zone; at least one stage of wetting spray apparatus is arranged in the removing tower which is above the smoke inlet end; the wet electrical dust precipitator is arranged in the removing tower which is above the wetting spray apparatus; and the top of the removing tower is provided with a smoke outlet. The invention also discloses a method for removing PM2.5 from the smoke. The method sequentially comprises steps of particle charging, mixing coagulation, dust wetting tempering, and wet electrical precipitation. The device and the method have the following advantages: fine dust PM2.5 can be removed from fire coal; fine particles of acid mist, heavy metal particles and the like can be removed from the smoke; and the PM2.5 removal rate is equal to or greater than 95%.
Owner:浙江菲达脱硫工程有限公司 +1

Equipment for removing dust by using magnetic fluid and application thereof as well as method for removing dust in air by using equipment

The invention discloses equipment for removing dust by using a magnetic fluid. The equipment comprises a wetting device, an agglomeration device, an ionization device and a device for removing dust by using a magnetic fluid, wherein the wetting device is used for wetting the dust particles coming from the air and entering into magnetic fluid equipment; the agglomeration device is used for agglomerating the dust particles wetted by the wetting device into large dust particles; the ionization device is used for charging the large dust particles obtained by the agglomeration device; and the device for removing dust by using a magnetic fluid is used for contacting the charged dust particles obtained by the ionization device with a magnetic fluid solution in the device for removing dust by using a magnetic fluid, thus precipitating the charged dust particles so as to remove the charged dust particles. The equipment can overcome the defects that the traditional dust removing equipment has low degree of dust removing automation, has selectivity toward the dust, has rigorous requirements for the environment and needs artificial participation, can well realize higher removal rate toward various industrial or domestic dust and can automatically complete later removing of the dust.
Owner:盐城市劲风节能环保设备有限公司

Dust collection device, system and method of frictional electricity

The invention discloses a dust collection device and method of frictional electricity. According to the dust collection device, an outer layer shell body and an inner layer shell body of a suit layer structure are adopted, wherein the outer layer shell body is of leakproof structure, multiple gas ports are formed in the inner layer shell body, and the inner wall of the inner layer shell body is provided with electrodes; the rotation of the inner layer shell body makes multiple dust collection units and the electrodes, which are arranged in the inner layer shell body, collide with one another, gases entering through an air inlet pass through the dust collection units, a gap between the inner layer shell body and the outer layer shell body, the dust collection units and an air outlet sequentially, and under the roles of electrostatic adsorption and physical filtration of the dust collection units, effective filtration of particulate matter in the air is achieved. Through the arrangement of the inner layer shell body and the outer layer shell body, the gases are capable of passing through the dust collection device more smoothly, and airflow resistance is reduced. The dust collection device can conduct effective and fast filtration on the particulate matter with grades of micron, sub-micron, nanometer and the like.
Owner:BEIJING NAIR TENG TECH CO LTD

Device and method for treating evaporation and desulfurization waste water of high-temperature flue gas

The invention discloses a device and a method for treating evaporation and desulfurization waste water of high-temperature flue gas and belongs to the field of treatment of industrial waste water. Thedevice comprises an SCR (selective catalytic reduction) catalytic denitration system, an air preheater, an electrostatic precipitator, an induced draft fan, a wet desulfurization absorption tower anda chimney which are connected in sequence, wherein a desulfurization waste water storage box is connected with the bottom of the wet desulfurization absorption tower and connected to a water inlet inthe top of an evaporation tower through a water pump; a high-flow gas inlet and a low-flow gas inlet are formed in the top and the bottom of the evaporation tower respectively; the two gas inlets areconnected with a gas diverter outlet respectively, and a gas diverter inlet is connected with the induced draft fan and a gas flue between the SCR catalytic denitration system and the air preheater;a gas outlet formed in the middle of the evaporation tower is connected with a gas flue between the air preheater and the electrostatic precipitator through a gas outlet pipeline. According to the device and the method, the evaporation effect is improved, energy consumption is reduced, content of gaseous chlorine at the outlet of the evaporation tower is reduced, and safe and stable operation of follow-up equipment is facilitated.
Owner:POWERCHINA HEBEI ELECTRIC POWER SURVEY & DESIGN INST CO LTD

Electric dust removal control system and control method thereof

The invention belongs to the field of an environment protective control, which particularly relates to an electric dedusting control system and a control method thereof; the invention is essentially applicable to the fields such as the power supply system, cement, metallurgy, nonferrous metals and chemical industries, including a central control system, an upper machine set and a lower machine set; the industrial Ethernet based on the TCP/IP protocol is adopted among upper computers in the upper machine set and between the upper computers and lower computers, the lower machine set is connected with the central control system by a switch software Ethernet, the central control system is taken as a monitoring control terminal to design, alter and debug the operation of the system in the upper computer image monitoring control terminal software; the electric dedusting control method includes a fan control, an evaporation low temperature control, an electric field control, a rapping control, a changing-over station control and a gas cold control. The environment protective control of the invention has high degree of automation, low operation cost, small electric energy consumption, convenient maintenance and management and relatively high dedusting efficiency.
Owner:沈阳创思达自动化系统有限公司
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