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

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

The invention discloses a multi-pipe swirling flow coupling dedusting and mist removal equipment. The equipment is arranged in a desulfurization tower and includes a cylinder body with a dust removal and mist removal chamber inside. The bottom of the cylinder body is provided with a smoke inlet, and the top is provided with a smoke outlet. The dust removal and mist removal chamber is divided into a swirl coupling area and an electric field area. The electric field area is located above the swirl coupling area. There are many tube bundle devices for dust removal and mist removal distributed along the vertical direction in the dust removal and mist removal chamber. Above the tube bundle device A flushing device is provided, and a plurality of inner cylinders forming a swirl coupling area, a cyclone separator installed in the inner cylinder and a guide ring arranged between two adjacent cyclone separators are arranged inside the tube bundle device. And a cathode system forming an electric field area, the cathode system is electrically connected to a high-voltage power supply system, and the high-voltage power supply system is arranged outside the cylinder. The invention can increase the centrifugal movement speed of the airflow, trap tiny fog droplets and dust particles, and has good smoke and dust removal and fog removal effects.

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.

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.

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.

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.