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34results about How to "Good effect of dust removal and fog removal" patented technology

Dedusting and demisting device of spiral flow plate

The invention discloses a dedusting and demisting device of a spiral flow plate. The dedusting and demisting device comprises a plurality of dedusting and demisting units, wherein each dedusting and demisting unit comprises a hollow overflowing barrel body, a spiral flow cyclone is arranged in the overflowing barrel body, a flue gas guiding device is connected to the lower part of the spiral flow cyclone, the flue gas guiding device is fixedly connected with the overflowing barrel body, a blowing hole is formed in the flue gas guiding device, and a discharge hole is formed in the inner wall of the overflowing barrel body; the flue gas guiding device is a variable cross-section truncated cone-shaped hollow barrel body of which the cross-sectional area changes continuously, and the upper end surface of the truncated cone-shaped hollow barrel body is connected with the spiral flow cyclone. By using the flue gas guiding device, continuous change of the airflow moving state is realized, the stability of a formed liquid film is good, and secondary entrainment of liquid drops is effectively prevented. Compared with a dedusting and demisting device without the guiding device, the gas distribution state is more uniform, and local disturbance of airflow which passes through the spiral flow cyclone is effectively reduced, so that the airflow moving state is more stable, and the stability of the formed liquid film is better.
Owner:SHANDONG SHANDA WIT ENVIRONMENTAL ENGINEERING CO LTD

Deep dedusting and defogging device

The invention relates to a deep dedusting and defogging device which comprises flow guide cylinders arranged in an absorption tower, wherein airflow passages are formed in the flow guide cylinders; spiral passages communicated with the airflow passages are further formed above the air flow passages; outlets of the spiral passages are inclined; the cylinder walls of the flow guide cylinders are higher than the outlets of the spiral passages, and volume-enlarged chambers with openings are formed in the position above the spiral passages. According to the device, the spiral passages are additionally formed in the position above the airflow passages, and in a rising process of flue gas, the effect of absorbing dust and removing liquid drops is achieved by virtue of continuous rotation and collision movement between water drops in the flue gas, the water drops and the dust as well as the water drops and the walls of the passage walls under double actions of centrifugal force and inertial collision, so that defogging and dedusting efficiency is effectively improved; in the volume-enlarged chamber, the speed of the flue gas is reduced, the separated liquid drops fall, and the liquid drops are discharged through the downward passages separated from the flue gas, so that secondary carrying is prevented.
Owner:TIANJIN XIANGYUANXI ENVIRONMENTAL PROTECTION EQUIP CO LTD +1

Phase-change dust-removing and mist-removing paralleling device of high-efficiency pneumatic pipe bundle and application

The invention relates to a phase-change dust-removing and mist-removing paralleling device of a high-efficiency pneumatic pipe bundle and an application. The phase-change dust-removing and mist-removing paralleling device comprises a plurality of phase-change dust-removing and mist-removing devices of the high-efficiency pneumatic pipe bundle, which are connected together in parallel; each of the phase-change dust-removing and mist-removing device comprises a hollow drum body with the openings at the two ends, a drum-body upper sealing plate, a drum-body lower sealing plate, a cyclone section, a pipe-bundle type water-mist distributing section and a water blocking section. The paralleling device has the advantages that the plurality of phase-change dust-removing and mist-removing devices are connected together in parallel, so that a user can assemble and adjust according to the treating capability needed practically, single phase-change dust-removing and mist-removing devices can be connected by adopting bonding, welding or hole grooves and the like; the manufacture is convenient and the waste-gas treating range is greatly expanded.
Owner:AEROSPACE ENVIRONMENTAL ENG

Swirling de-swirling coupled efficient dedusting and demisting assembly

ActiveCN105642024AAvoid bringing outPlay a role in inertia removalDispersed particle separationFriction lossFlue gas
The invention relates to a swirling de-swirling coupled efficient dedusting and demisting assembly. The assembly is arranged above a spraying layer in a desulfurizing absorption tower, and comprises multiple dedusting and demisting units, wherein each dedusting and demisting unit comprises an outer cylinder, and a first stage of centrifugal swirling plate, a second stage of centrifugal swirling plate and a de-swirling hydrophobic plate provided at the top of a hollow complex cylinder aslant which are sequentially and parallelly arranged inside the outer cylinder from bottom to top, and gaps for liquid film falling are reserved among the outer edge of the first stage of centrifugal swirling plate, the outer edge of the second stage of centrifugal swirling plate and the inner wall of the outer cylinder. Compared with the prior art, the swirling de-swirling coupled efficient dedusting and demisting assembly has the advantages of simple and compact overall structure, low investment cost, good operation stability, no scaling blockage risks, capability of realizing deep dedusting and demisting on saturated wet flue gas after desulfurizing, low resistance loss, and good application prospect under lower investment cost and operating cost.
Owner:SHANGHAI JIAO TONG UNIV

High-efficiency pneumatic pipe bundle phase-change dedusting and demisting device and application

InactiveCN104923020AImprove centrifugal effectHelp to separate and captureCombination devicesElectricityEngineering
The invention relates to a high-efficiency pneumatic pipe bundle phase-change dedusting and demisting device and application. The device comprises a hollow barrel with two ends open, an upper barrel sealing plate, a lower barrel sealing plate, rotational flow sections, pipe-bundle-type water mist distribution sections and a water retaining section, the rotational flow sections of more than two stages are arranged coaxially in the inner-layer barrel from bottom to top at intervals, each pipe-bundle-type water mist distribution section is arranged coaxially between each two corresponding rotational flow sections, and the water retaining section is coaxially arranged on the inner-layer barrel below the upper barrel sealing plate in an outer-edge-sealed manner. The device can effectively remove liquid drops, dust and superfine dust of smoke systems or industrial waste gas systems, is good in demisting and dedusting effect and is lower in energy consumption and more energy saving when compared with wet-type electric dedusting. In addition, by the device, arrangement space is saved, and power equipment is omitted; the device has good dedusting and demisting effect while energy consumption is lowered, and can be applied to dedusting and demisting of industrial tail gas.
Owner:AEROSPACE ENVIRONMENTAL ENG

Dedusting and demisting device, treatment tower and use of dedusting and demisting device

The invention discloses a dedusting and demisting device, a treatment tower and a use of the dedusting and demisting device. The dedusting and demisting device comprises a guide cylinder, a middle shaft and a rotating blade group located in the guide cylinder, and a retaining ring arranged at the upper part of the guide cylinder. The rotating blade group comprises a center cylinder, a blade group and an outer cylinder. The rotating blade group is located in the guide cylinder. The middle shaft sleeves the center cylinder. The center cylinder and the outer cylinder are arranged coaxially. The blade group comprises multiple blades. One end of each one of the blades is fixedly connected to the center cylinder and the other end is fixedly connected to the outer cylinder. The blades are inclinedly arranged and have elevation angles of 20-60 degrees. The dedusting and demisting device can completely replace the conventional demister in the existing desulfurization tower and a wet type electric precipitator in the rear of the desulfurization tower, has excellent dedusting and demisting effects and reduces equipment and operation costs.
Owner:ZHONGJING ENVIRONMENTAL TECH CO LTD

Demisting system with dedusting, demisting and water recovery functions

The invention relates to a demisting system with dedusting, demisting and water recovery functions. The demisting system with the dedusting, demisting and water recovery functions comprises a demister, a supporting plate and a flushing device, wherein the demister is arranged in an absorption tower; the supporting plate is used for fixing the demister; the flushing device is used for flushing the demister; the demister comprises a plurality of demister blades which are configured in parallel; the flushing device comprises a flushing water pipeline and a plurality of spray nozzles; a flushing water recovery device is arranged below the flushing device, and comprises a plurality of water collection pipes which are obliquely arranged, and a water discharge pipe which is used for communicating the water collection pipes with one another and discharging flushing water outside the tower; channels through which fumes circulate are arranged between every two adjacent water collection pipes. According to the demisting system with the dedusting, demisting and water recovery functions, through the combination of the water recovery device, a spray dedusting system and the demister, the dedusting and the demisting on the fumes and the repetitive recycling of water are realized; the purposes of energy conservation and emission reduction are realized; the requirement of near zero emissions of a heat-engine plant is met.
Owner:北京香源溪环保科技有限公司

Dedusting and demisting treatment method and system for sensor

The invention relates to a dedusting and demisting treatment method and system for a sensor. The method comprises the following steps of acquiring an image shot by a sensor of an aircraft; if the image quality of the image is smaller than a set threshold value, outputting a dedusting and demisting signal to control gas source equipment to output gas; carrying out heating treatment on the gas; and impacting the sensor light-transmitting layer with the treated gas to remove dust and mist. The method is advantaged in that dust removal and demisting can be carried out on the sensor light-transmitting layer more simply, and the good dust removal and demisting effect is achieved.
Owner:GUANGDONG HUITIAN AEROSPACE TECH CO LTD

Sound-wave-coupling rotational flow-rotation eliminating efficient dust removing and defogging device

ActiveCN106237724ASatisfied that the dust content is less than 5mg/Nm <sup>3</sup> ultra-low emission requirementsGood effect of dust removal and fog removalAuxillary pretreatmentSprayerFlue gas
The invention relates to a sound-wave-coupling rotational flow-rotation eliminating efficient dust removing and defogging device. The sound-wave-coupling rotational flow-rotation eliminating efficient dust removing and defogging device is arranged above a spraying layer in a desulfurization absorption tower and comprises a plurality of dust removing and defogging units which are parallelly mounted. Each dust removing and defogging unit comprises an outer cylinder, a primary centrifugal rotational-flow plate, a secondary centrifugal rotational-flow plate and a rotation-eliminating hydrophobic plate, wherein the primary centrifugal rotational-flow plate and the secondary centrifugal rotational-flow plate are sequentially parallelly arranged in the outer cylinder from bottom to top, the rotation-eliminating hydrophobic plate is obliquely arranged at the top of the outer cylinder, a sound wave generator is arranged at the center of the primary centrifugal rotation-flow plate, and a washing water sprayer is arranged between the sound wave generator and the secondary centrifugal rotation-flow plate. Compared with the prior art, the sound-wave-coupling rotational flow-rotation eliminating efficient dust removing and defogging device has the advantages that the device integrates the features of sound wave and rotational-flow centrifugal dust removing and defogging, and the device is simple and compact in overall structure, low in investment cost, good in operation stability, free of scaling and blocking risks, capable of achieving deep dust removing and defogging of saturated wet flue gas after desulfurization under low investment cost and operation cost, low in resistance loss and promising in application prospect.
Owner:SHANGHAI JIAO TONG UNIV

Spiral-flow type flue gas dedusting and demisting device

The invention discloses a spiral-flow type flue gas dedusting and demisting device which comprises a supporting rod, a spiral-flow piece, a wall face, a water stop ring, a water outlet and a flushing device. According to the working principle, flue gas flows from bottom to top and is in a spiral rising flowing state in the dedusting and demisting device under the effect of the spiral-flow piece; in the state, drag force borne by small liquid drops and fine dust is not enough to provide centrifugal force needed by rotation, so that the small liquid drops and the fine dust move from a channel center to the wall face and touch a water film which perpendicularly flows downwards on the wall face before leaving the spiral-flow piece and are absorbed, and then the small liquid drops and the fine dust are removed. The spiral-flow type flue gas dedusting and demisting device has the advantages of being simple in structure and low in investment and running cost, and can efficiently remove small liquid drops and fine dust in flue gas.
Owner:SHANGHAI BOILER WORKS

Efficient ceramic flue gas treatment device

Disclosed is an efficient ceramic flue gas treatment device. The efficient ceramic flue gas treatment device comprises a spray tower, an absorption tower, an SNCR (selective non-catalytic reduction) denitrification system arranged on a hot-blast stove, a heat exchange system, a slurry circulating pump, an oxidation air blower, a limestone slurry system and a gypsum recovery system; flue gas containing particulates, sulfur dioxide and the like generated by a kiln and the spray tower for centralized treatment and ultra-clean smokeless emission; the flue gas from the hot-blast stove is treated bythe SNCR denitrification system and then enters the spray tower to be subjected to heat absorption with the flue gas from the kiln by the heat exchange system in the flue gas cooling section of the absorption tower, the flue gas enters the absorption tower to contact and react with limestone slurry, the heat form the heat exchange system is absorbed and exhausted to the outside world when the flue gas rises to a flue gas reheating section, and white smoke is eliminated; the slurry circulating pump continuously pumps the limestone slurry provided by the limestone slurry system to a spray unit,and the limestone slurry is recovered; the oxidation air blower provides air for the absorption tower by stirring, and reaction and precipitation of sulfide are fastened; gypsum is conveyed and recovered by the gypsum recovery system without environmental pollution.
Owner:FOSHAN HUAQING ZHIYE ENVIRONMENTAL PROTECTION TECH CO LTD

Dedusting and demisting apparatus, treating tower and application of dedusting and demisting apparatus

The invention discloses a dedusting and demisting apparatus, a treating tower and application of the dedusting and demisting apparatus. The dedusting and demisting apparatus comprises a guide cylinder, a centre shaft, a rotary vane group, a mist spray unit and an interception ring, wherein the rotary vane group comprises a center cylinder, a vane group and an outer cylinder and is located in the guide cylinder, the guide cylinder sleeves the centre shaft, the center cylinder and the outer cylinder are coaxially arranged, the vane group comprises a plurality of vanes, one ends of the vanes are fixedly connected with the center cylinder, the other ends of the vanes are fixedly connected with the outer cylinder, the vanes are obliquely arranged and have an elevation angle of 20 to 60 DEG, and the mist spray unit comprises a dedusting liquid nozzle which is arranged on the centre shaft, located above the rotary vane group and used for providing a dedusting liquid to the interior of the guide cylinder. The dedusting and demisting apparatus provided by the invention has substantially improved dedusting and demisting efficiency and obviously reduced operation cost.
Owner:ZHONGJING ENVIRONMENTAL TECH CO LTD

High efficiency pneumatic pipe bundle dedusting and defogging parallel device for N furnaces with one towerand application

The invention relates to a high efficiency pneumatic pipe bundle dedusting and defogging parallel device for N furnaces with one tower, and the device comprises a plurality of high efficiency pneumatic pipe bundle dedusting and defogging parallel devices connected in parallel. In case of use, the high efficiency pneumatic pipe bundle dedusting and defogging parallel devices can be hermetically connected to the inner wall of an exhaust treatment device. The parallel device disclosed by the invention comprises a plurality of high efficiency pneumatic pipe bundle dedusting and defogging paralleldevices connected in parallel, so that a user can assemble and adjust according to an actual required processing capability, and the different units can be connected by bonding or welding. The production is convenient, the processing capacity is greatly improved, and the treatment range of the single exhaust tube is greatly increased. The high-efficiency pneumatic pipe bundle dedusting and defogging parallel device can be applied to industrial exhaust dedusting and defogging.
Owner:AEROSPACE ENVIRONMENTAL ENG

Multicyclone coupling dedusting and defogging equipment

PendingCN107198907AIncreased speed of centrifugal movementEfficient removalDispersed particle separationElectrodes cleaningCycloneEngineering
The invention discloses multicyclone coupling dedusting and defogging equipment, which is arranged in a desulfurization tower and comprises a barrel with a dedusting and defogging chamber inside, wherein a flue gas inlet is formed in the bottom of the barrel, a flue gas outlet is formed in the top of the barrel, the dedusting and defogging chamber is divided into a cyclone coupling region and an electric field region, the electric field region is positioned above the cyclone coupling region, multiple tube bundle devices for dedusting and defogging are distributed in the dedusting and defogging chamber along the vertical direction, a flushing device is arranged above the tube bundle devices, multiple inner barrels for forming the cyclone coupling region, cyclone separators arranged in the inner barrels, deflector rings arranged between every two adjacent cyclone separators and cathode systems for forming the electric field region are arranged in the tube bundle devices, and a high-voltage power system is electrically connected to the cathode system, and is arranged outside the barrel. According to the equipment, the centrifugal movement speed of an airflow can be increased, tiny fog drops and dust particles can be captured, and a good flue gas dedusting and defogging effect is achieved.
Owner:JIANGSU KEHANG ENVIRONMENT ENG TECH

Dust and mist removal device for haze prevention and control

The invention belongs to the technical field of ecological environmental protection, and especially relates to a dust and mist removal device for haze prevention and control. The device includes a base, a water storage tank is mounted in the base, and a vertically-arranged barrel is installed at the upper end of the base. An inner shell is coaxially arranged in the barrel; the inner shell and thebarrel are fixedly communicated with the base; exhaust holes communicated with the outside are formed in the side walls of the lower ends of the inner shell and the barrel; and a plurality of micropores are formed in the side wall of the barrel at equal intervals, a draught fan is installed at the upper end of the barrel, an air outlet of the draught fan extends into the inner shell, a fan is rotationally connected to the inner side wall of the inner shell, and a permanent magnet ring is rotationally arranged between the inner shell and the barrel. Soap bubbles can be generated in the inner shell through airflow flowing, the surface area of the soap bubbles is large, the soap bubbles make full contact with haze gas, particles such as particles, dust and aerosol in the haze gas are effectively adsorbed, the good dust and mist removal effect is achieved, and haze prevention and control are facilitated.
Owner:张震震

Efficient cyclone dust removal demisting dehydration and desulfurization tower

The invention discloses a high-efficiency cyclone dedusting, demisting, dehydration and desulfurization tower. The chimney of the desulfurization tower is provided with multi-layer centrifugal cyclone separators and a water retaining ring sequentially from the bottom up. The centrifugal cyclone separators It includes a central shaft and a plurality of truncated isosceles triangular guide vanes, one end of the guide vane is fixed to the central shaft by rotating clockwise at an angle of 30-45 degrees along the central axis, and the other end of the guide vane It is fixed to the inner wall of the chimney, and the end of the guide vane fixed to the central axis is the top of the guide vane in the shape of a truncated isosceles triangle, and the end fixed to the inner wall of the chimney is the bottom end of the guide vane in the shape of a truncated isosceles triangle . The invention not only has good effect of dust removal and fog removal, but also avoids the formation of gypsum rain, and the downward moving water droplets will be washed by the centrifugal cyclone separator to avoid clogging of the centrifugal cyclone separator, without frequent replacement and washing, and is convenient to use.
Owner:江苏佳诣环保科技有限公司

Desulfurization, denitrification and white smoke elimination device for ultralow emission of sintering machine flue gas and process thereof

The invention provides a desulfurization, denitrification and white smoke elimination device for ultralow emission of flue gas of a sintering machine and a process thereof. The device and the processare high in desulfurization, denitrification and dust removal efficiency and stable in long-term operation, reduce energy consumption and satisfy ultra-low emission requirements of sintering machinesand sintering agglomerates in the iron and steel industry. A double-tower device in a desulfurization system is subjected to desulfurization efficiency improvement and transformation, so that the ultra-low emission index of SO2 is achieved; a spiral-flow type efficient dust-removing demister and a wet type electric dust remover are arranged at the upper part of the secondary absorption tower, so that pollutants such as smoke dust, slurry fog drops, SO3 and heavy metals in the flue gas are effectively removed, and the ultralow emission index of the smoke dust is achieved; the denitration systemadopts a medium-low temperature SCR (Selective Catalytic Reduction) process, ammonia gas and NOx are subjected to a redox reaction under the action of a catalyst, NOx is reduced into N2 and H2O, andthe ultralow emission index of NOx is achieved.
Owner:YANGCHUN NEW STEEL CO LTD

Embedded electrostatic dust removal demister

The invention discloses an embedded electrostatic dust removal demister which comprises a shell, a high-voltage power supply and a plurality of demisting and dedusting assemblies arranged in the shell; each demisting and dedusting assembly comprises a discharge electrode and a dust collection and demisting device; an air inlet is formed in one side of the shell, and an air outlet is formed in theother side of the shell; in the direction from the air inlet to the air outlet, the demisting and dedusting assemblies are sequentially distributed, and the discharge electrodes in the demisting and dedusting assemblies and the dust collection and demisting devices are sequentially distributed; the high-voltage power supply is connected with the discharge electrodes of the demisting and dedustingassemblies, and the deduster has the advantages of small resistance and small arrangement space.
Owner:XIAN THERMAL POWER RES INST CO LTD +1

Multi-stage spiral-flow type dust and mist removal device for realizing full-particle-size removal, and dust and mist removal method

The invention discloses a multistage spiral-flow type dust and mist removal device for realizing full-particle-size removal and a dust and mist removal method. The multistage spiral-flow type dust andmist removal device for realizing full-particle-size removal comprises: a flow passing cylinder of a thin-wall cylinder structure; at least on flow gathering device, wherein each flow gathering device at least comprises a first-stage flow gathering ring and a second-stage flow gathering ring, the bodies of the two stages of flow gathering rings are both of a cylinder structure, internal channelsof the two stages of flow gathering rings are both in a circular truncated cone shape, and the second-stage flow gathering ring is arranged in the first-stage flow gathering ring in a sleeved mode; and at least one swirler, which is mounted on the cross section of the flow passing barrel, and the flow gathering device is correspondingly mounted at a downstream position relative to the swirler. According to the dust and mist removal device, through capture of at least two stages of liquid drops and smoke dust, the liquid drops and the smoke dust which are distributed in a large particle size range on the cross section of the flow passing barrel can be well captured, and a good dust and mist removal effect can be achieved.
Owner:SHANDONG ACAD OF ENVIRONMENTAL SCI CO LTD

Desulfurization and dust removal device

The invention provides a desulfurization and dust removal device. The desulfurization and dust removal device comprises a body, a spraying structure and a purifying structure, wherein the body is provided with an inlet and an outlet; the spraying structure is arranged in an absorption tower and in a position close to the inlet; the purifying structure is arranged in the absorption tower and comprises a primary washing component, a secondary washing component, a dust removal and demisting component and a foam removal component; and flue gas flows out from the outlet after passing through the spraying structure, the primary washing component, the secondary washing component, the dust removal and demisting component and the foam removal component in sequence from the inlet. After the flue gaspasses through the primary washing component, the secondary washing component, the dust removal and demisting component and the foam removal component, the content of particulate matters in the fluegas can be reduced, the dust removal and purifying ability of the desulfurization and dust removal device can be improved. Therefore, the concentration of the particulate matters in the exhausted fluegas is not higher than 5 mg / m3.
Owner:CHINA HUADIAN ENG +1

A cyclone-race-coupling high-efficiency dust and mist removal component

The invention relates to a swirling de-swirling coupled efficient dedusting and demisting assembly. The assembly is arranged above a spraying layer in a desulfurizing absorption tower, and comprises multiple dedusting and demisting units, wherein each dedusting and demisting unit comprises an outer cylinder, and a first stage of centrifugal swirling plate, a second stage of centrifugal swirling plate and a de-swirling hydrophobic plate provided at the top of a hollow complex cylinder aslant which are sequentially and parallelly arranged inside the outer cylinder from bottom to top, and gaps for liquid film falling are reserved among the outer edge of the first stage of centrifugal swirling plate, the outer edge of the second stage of centrifugal swirling plate and the inner wall of the outer cylinder. Compared with the prior art, the swirling de-swirling coupled efficient dedusting and demisting assembly has the advantages of simple and compact overall structure, low investment cost, good operation stability, no scaling blockage risks, capability of realizing deep dedusting and demisting on saturated wet flue gas after desulfurizing, low resistance loss, and good application prospect under lower investment cost and operating cost.
Owner:SHANGHAI JIAO TONG UNIV

Dust and mist remover with negative ion generating device

The invention relates to a dust and mist remover with a negative ion generating device. The dust and mist remover comprises a unit cylinder, a rotational flow guide vane and the negative ion generating device, closely arranged unit cylinders are arranged in a desulfurization absorption tower, and the unit cylinders are mounted above the uppermost desulfurization slurry spraying layer; each unit cylinder is a cylinder which is installed in the smoke flowing direction and provided with a smooth inner wall and a smooth outer wall, a plurality of stages of rotational flow guide vanes are sequentially arranged in each unit cylinder from bottom to top, and the negative ion generating device is arranged between the rotational flow guide vanes or below the first stage of rotational flow guide vane. The unit cylinders are closely arranged in a rectangular or triangular manner; and the unit cylinders are vertically arranged on a supporting steel grating in the desulfurization absorption tower. The dust and mist remover has the beneficial effects that the rotational flow guide vanes and the negative ion generating device are arranged, various modes such as centrifugal separation and negativeion condensation are effectively combined for flue gas treatment, the dust removal and demisting effects are good, and the concentration of smoke dust and fog drops in flue gas at an outlet of the desulfurizing tower can be effectively reduced.
Owner:ZHEJIANG TIANDI ENVIRONMENTAL PROTECTION TECH CO LTD

Desulfurization boiler flue gas purification apparatus

The invention relates to a desulfurization boiler flue gas purification apparatus including: a desulfurization column; wherein a first liquid chamber is arranged on the lower part of a chamber of thedesulfurization column; a first spray pipe is arranged in the desulfurization column and is located right above the first liquid chamber and communicated with the first liquid chamber via a pipeline.The apparatus also includes: a flue gas cleaning column, which is communicated with the flue gas outlet of the desulfurization column through a pipeline, a condenser and a heater being successively arranged, in the flowing direction of flue gas, in the flue gas cleaning column. The apparatus has high desulfurization effect, is high in flue gas flowing speed and has great dust and fog removal effect. When the flue gas, treated by the apparatus, is discharged to atmosphere, the flue gas is low in moisture, is high in cleanness and is free of white smoke plume.
Owner:BEIJING LANGCLEAN ENVIRONMENT

A high-efficiency dust and mist removal device with acoustic wave coupling swirl-race-swirl

The invention relates to a sound-wave-coupling rotational flow-rotation eliminating efficient dust removing and defogging device. The sound-wave-coupling rotational flow-rotation eliminating efficient dust removing and defogging device is arranged above a spraying layer in a desulfurization absorption tower and comprises a plurality of dust removing and defogging units which are parallelly mounted. Each dust removing and defogging unit comprises an outer cylinder, a primary centrifugal rotational-flow plate, a secondary centrifugal rotational-flow plate and a rotation-eliminating hydrophobic plate, wherein the primary centrifugal rotational-flow plate and the secondary centrifugal rotational-flow plate are sequentially parallelly arranged in the outer cylinder from bottom to top, the rotation-eliminating hydrophobic plate is obliquely arranged at the top of the outer cylinder, a sound wave generator is arranged at the center of the primary centrifugal rotation-flow plate, and a washing water sprayer is arranged between the sound wave generator and the secondary centrifugal rotation-flow plate. Compared with the prior art, the sound-wave-coupling rotational flow-rotation eliminating efficient dust removing and defogging device has the advantages that the device integrates the features of sound wave and rotational-flow centrifugal dust removing and defogging, and the device is simple and compact in overall structure, low in investment cost, good in operation stability, free of scaling and blocking risks, capable of achieving deep dust removing and defogging of saturated wet flue gas after desulfurization under low investment cost and operation cost, low in resistance loss and promising in application prospect.
Owner:SHANGHAI JIAOTONG UNIV

A swirl plate dust and fog removal device

The invention discloses a dedusting and demisting device of a spiral flow plate. The dedusting and demisting device comprises a plurality of dedusting and demisting units, wherein each dedusting and demisting unit comprises a hollow overflowing barrel body, a spiral flow cyclone is arranged in the overflowing barrel body, a flue gas guiding device is connected to the lower part of the spiral flow cyclone, the flue gas guiding device is fixedly connected with the overflowing barrel body, a blowing hole is formed in the flue gas guiding device, and a discharge hole is formed in the inner wall of the overflowing barrel body; the flue gas guiding device is a variable cross-section truncated cone-shaped hollow barrel body of which the cross-sectional area changes continuously, and the upper end surface of the truncated cone-shaped hollow barrel body is connected with the spiral flow cyclone. By using the flue gas guiding device, continuous change of the airflow moving state is realized, the stability of a formed liquid film is good, and secondary entrainment of liquid drops is effectively prevented. Compared with a dedusting and demisting device without the guiding device, the gas distribution state is more uniform, and local disturbance of airflow which passes through the spiral flow cyclone is effectively reduced, so that the airflow moving state is more stable, and the stability of the formed liquid film is better.
Owner:SHANDONG SHANDA WIT ENVIRONMENTAL ENGINEERING CO LTD

A deep dust and mist removal device

The invention relates to a deep dedusting and defogging device which comprises flow guide cylinders arranged in an absorption tower, wherein airflow passages are formed in the flow guide cylinders; spiral passages communicated with the airflow passages are further formed above the air flow passages; outlets of the spiral passages are inclined; the cylinder walls of the flow guide cylinders are higher than the outlets of the spiral passages, and volume-enlarged chambers with openings are formed in the position above the spiral passages. According to the device, the spiral passages are additionally formed in the position above the airflow passages, and in a rising process of flue gas, the effect of absorbing dust and removing liquid drops is achieved by virtue of continuous rotation and collision movement between water drops in the flue gas, the water drops and the dust as well as the water drops and the walls of the passage walls under double actions of centrifugal force and inertial collision, so that defogging and dedusting efficiency is effectively improved; in the volume-enlarged chamber, the speed of the flue gas is reduced, the separated liquid drops fall, and the liquid drops are discharged through the downward passages separated from the flue gas, so that secondary carrying is prevented.
Owner:TIANJIN XIANGYUANXI ENVIRONMENTAL PROTECTION EQUIP CO LTD +1
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