39results about How to "Eliminate "white smoke"" patented technology

The invention discloses a method used for eliminating white mist water vapour at flue gas discharge outlets, and belongs to the technical field of low temperature wet flue gas treatment. According tothe method, condensation is carried out firstly, and then heating is carried out; wet method desulphurization flue gas is introduced into a condensing tower, a condensate liquid is adopted for spraying of the flue gas for condensation, so that the temperature of the flue gas is reduced, precipitation of condensed water is realized, and water in the flue gas is removed; the flue gas after removingof condensed water is introduced into a demister to remove mist granules and slurry droplets in flue gas; the flue gas is introduced into a heating device for heating and temperature increasing, so that the moisture saturation degree of the flue gas is reduced, the hypersaturated states of the flue gas are converted into unsaturated states, and flue gas is discharged. The method is capable of preventing generation of white mist effectively; investment cost and operation cost are low; economical benefit and environment benefit are excellent; white mist elimination effect is excellent; and the efficiency is relatively high.

The invention relates to a flue gas and flue gas desulfurization wastewater treatment method and device. The flue gas is used to exchange heat and raise the temperature of desulfurization wastewater in a flue gas / desulfurization wastewater heat exchanger, a spray nozzle is arranged in a flue gas outlet to spray an NaOH solution, the temperature of the flue gas is reduced to the temperature of theacid dew point, then the flue gas enters a bag filter to remove dust and a sulfate / sulfuric acid liquid drop and then falls into a desulfurizing tower; the flue gas is desulfurized, purified and heated and the temperature is raised in the desulfurizing tower, the wastewater part at the bottom part of the desulfurizing tower serves as a circulating absorption liquid, other wastewater enters a plateheat exchanger in the form of desulfurization wastewater; and the plate heat exchanger uses steam condensation water produced in a heating coil in an exhaust funnel to preheat the desulfurization wastewater, and the preheated wastewater enters the flue gas / desulfurization wastewater heat exchanger. The double purposes of purifying the flue gas and meeting the emission requirement and achieving zero emission of the flue gas desulfurization waste liquid are achieved on the basis that the waste heat of the flue gas is fully used, meanwhile, the white smoke and the blue smoke are eliminated, andthe comprehensive treatment costs for the flue gas desulfurization and the desulfurization waste liquid are reduced.

The invention discloses a mechanical cooling tower white smoke removing device comprising a tower body. An exhaust port is arranged at the upper end of the tower body, a fan is arranged in the exhaustport, a defogger, a water distributing system, a heat exchange filler and an air intake grille are sequentially arranged on the portion, below the fan, in the tower body, the lower portion, below theair intake grille, at the bottom of the tower body is used as a circulating water tank, a plurality of water flow passages and a plurality of air flow passages adjacent to the plurality of water flowpassages are distributed inside the heat exchange filler alternately, the water distributing system includes a water distributing main pipe and a plurality of water distributing branch pipes, the water distributing main pipe is located at the position, above a packing layer and below the defogger, inside the tower body, and the water distributing main pipe communicates with and is connected witha minor water distributing machine arranged inside each water flow passage through the corresponding water distributing branch pipe. The mechanical cooling tower white smoke removing device has the advantages that heat of high-temperature circulating water is transferred and the circulating water is cooled by adopting an air-liquid indirect heat exchange mode, and only the air-liquid temperature changes during the heat exchange process, so that the water vapor evaporation amount of the high-temperature circulating water is greatly reduced during the heat exchange process, high temperature andlow humidity unsaturation emission of the air subjected to heat exchange is realized, the white smoke phenomenon of a mechanical cooling tower in winter is eliminated, and water resources are saved.

The invention discloses a system and technology for removing white smoke exhausted from boiler and industrial kiln chimneys. The system comprises a heat pump, a desulfurization process water heat exchanger, an air heater, a supplemental water heater, a plurality of water feeding and discharging pipelines and a plurality of smoke ducts, wherein the heat pump is used for generating low-temperature water and absorbing heat from low-temperature heat source desulfurization process water, accordingly, the temperature of smoke exhausted from an outlet of a desulfurization tower is lowered, and the amount of water contained in the smoke exhausted from the outlet of the desulfurization tower is decreased; meanwhile, the heat pump can generate high-temperature water which is used for serving as a heat source of the air heater to heat cold air, and surplus heat can be recovered, used for outside heating in winter and used for heating supplemental water in non-heating seasons; and the dual functions of smoke waste heat recovery and white smoke removing are achieved, and under the condition that operation of a boiler is not influenced, zero-cost operation of the white smoke removal process is achieved.

The invention relates to a wet smoke self-temperature returning integrated smoke purification device and an application thereof. The device comprises a washing tower outer barrel, a smoke outlet, an absorbing liquid storing cavity and a gas inlet flue extending barrel, the smoke outlet is disposed at the top of the washing tower outer barrel, the absorbing liquid storing cavity is arranged below the washing tower outer barrel, the gas inlet flue extending barrel is connected with the side of the washing tower outer barrel and extends to inside of the washing tower outer barrel, a smoke inlet is arranged at the front end of the gas inlet flue extending barrel, a same-direction fair current spraying head and a reverse spraying head are arranged inside the gas inlet flue extending barrel, directions of liquid drop sprayed by the same-direction fair current spraying heads and smoke flowing direction are the same, vertical opposite spraying is formed with the reverse spraying heads, and foam induction rings are arranged between the same-direction fair current spraying heads and the reverse spraying heads. According to the wet smoke self-temperature returning integrated smoke purification device and the application thereof, multiple functions such as dust removing, desulfuration, defogging and smoke heat exchange are integrated, device structure is compact, the floor space is small, the problems of 'white smoke' or chimney rain of wet purification smoke can be remarkably eliminated, and influence of smoke discharging on surroundings or vision can be reduced.

The invention discloses a desulfurization and dust removal system for white smoke, which comprises an induced draft fan, a pretreatment chamber, a desulfurization and dust removal tower, a cooling and whitening chamber, a temperature-rising whitening chamber and a diffusion and whitening chamber connected in sequence. The top of the pretreatment chamber A first flue gas inlet is provided, and the induced air pipe of the induced draft fan communicates with the first flue gas inlet of the pretreatment chamber, and the pretreatment chamber is provided with a first spray device; the cooling The top of the de-whitening chamber is provided with a first partition, and the first partition divides the cooling and de-whitening chamber into successively connected spraying parts and demisting parts, and the top of the spraying part is provided with a second spraying part. A shower device, the demisting part is provided with a first demister. The white smoke elimination, desulfurization and dust removal system has good effects of white smoke elimination, desulfurization and dust removal, simple structure, convenient maintenance, low maintenance and operation costs, and solves the problems of serious white smoke emission and heavy smoke odor in the production of ceramic factories. question.

The invention relates to a double-membrane microelectrostatic precipitator, and relates to the field of special equipment for ultra-low-emission of particulate matter. A primary dust capturing section comprises a primary three-dimensional mass transfer liquid collecting disc, a primary membrane micro-electrocoagulation layer and a primary membrane distributor, and the primary membrane micro-electrocoagulation layer is arranged above the primary three-dimensional mass transfer liquid collecting disc; the primary membrane distributor is arranged above the primary membrane micro-electrocoagulation layer, and a secondary dust capturing section is arranged above the primary membrane distributor; the secondary dust capturing section comprises a secondary three-dimensional mass transfer liquid collecting disc, a secondary membrane micro-electrocoagulation layer and a secondary membrane distributor, and the secondary membrane micro-electrocoagulation layer is arranged above the secondary three-dimensional mass transfer liquid collecting disc; the secondary membrane distributor is arranged above the secondary membrane micro-electrocoagulation layer. By adopting a combination structure of special fillings and special three-dimensional mass transfer liquid collecting discs, and special spraying, and a simple combination with dehumidification equipment, the comprehensive environmental protection and emission reduction effects of gravity dust removal, inertial dust removal, cyclone dust removal and the like, which cannot be achieved by the traditional dust removal process, can be achieved.

The invention relates to a double-membrane microelectrostatic precipitator, and relates to the field of special equipment for ultra-low-emission of particulate matter. A primary dust capturing section comprises a primary three-dimensional mass transfer liquid collecting disc, a primary membrane micro-electrocoagulation layer and a primary membrane distributor, and the primary membrane micro-electrocoagulation layer is arranged above the primary three-dimensional mass transfer liquid collecting disc; the primary membrane distributor is arranged above the primary membrane micro-electrocoagulation layer, and a secondary dust capturing section is arranged above the primary membrane distributor; the secondary dust capturing section comprises a secondary three-dimensional mass transfer liquid collecting disc, a secondary membrane micro-electrocoagulation layer and a secondary membrane distributor, and the secondary membrane micro-electrocoagulation layer is arranged above the secondary three-dimensional mass transfer liquid collecting disc; the secondary membrane distributor is arranged above the secondary membrane micro-electrocoagulation layer. By adopting a combination structure of special fillings and special three-dimensional mass transfer liquid collecting discs, and special spraying, and a simple combination with dehumidification equipment, the comprehensive environmental protection and emission reduction effects of gravity dust removal, inertial dust removal, cyclone dust removal and the like, which cannot be achieved by the traditional dust removal process, can be achieved.

The invention belongs to the technical field of cooling towers, and particularly relates to a closed cooling tower and a method for eliminating saturated air at an air outlet. The cooling device comprises cooling fins, a blowing type fan, a water collector, a spraying pipeline, a cooling pipe, a water collecting tank and a shell. The radiating fins, the blowing type fan, the water collector, the spraying pipeline, the cooling pipe and the water collecting tank are sequentially and horizontally arranged in the shell from top to bottom, and the cooling fins communicate with the cooling pipe. According to the closed cooling tower, the fan layout of a traditional closed cooling tower is changed, the blowing type fan serves as the cooling tower fan, the water collector is arranged at the bottomof the fan, primary condensation separation is conducted on saturated air, the cooling fins are arranged at the top of the fan, secondary absorption is conducted on heat in the saturated air, the saturated air is not saturated any more, and therefore the purpose of eliminating the saturated air is achieved. The blowing type fan is arranged below the cooling fins, cold energy generated by the blowing type fan is secondarily utilized, and energy consumption is reduced.

The invention relates to a treatment method for flue gas and flue gas desulfurization wastewater. In the flue gas / desulfurization wastewater heat exchanger, the flue gas is used to exchange heat for the desulfurization wastewater, and a nozzle is set at the outlet of the flue gas to spray NaOH solution to make the flue gas At this time, the flue gas enters the bag filter to remove dust and sulfate / sulfuric acid droplets, and then enters the desulfurization tower; desulfurization purification and heating are carried out in the desulfurization tower, and the waste water at the bottom of the tower is used as The absorption liquid is circulated, and the others enter the plate heat exchanger in the form of desulfurization wastewater; the plate heat exchanger uses the steam condensed water generated by the heating coil in the exhaust cylinder to preheat the desulfurization wastewater, and after preheating, the wastewater enters the flue gas / desulfurization wastewater exchange heater. On the basis of making full use of the waste heat of the flue gas, the present invention realizes the dual purpose of purifying the flue gas to meet the emission requirements and zero discharge of flue gas desulfurization waste liquid, and simultaneously eliminates "white smoke" and "blue smoke", and reduces the cost of flue gas desulfurization. and the comprehensive treatment cost of desulfurization waste liquid.