1291 results about "Demister" patented technology

The invention belongs to the technical field of waste gas desulfurization, and particularly relates to an efficient mass transfer desulfurization tower which comprises a desulfurization tower body, a gas inlet pipe and a gas exhaust pipe, the gas inlet pipe is communicated with the bottom of one side of the desulfurization tower body, the gas exhaust pipe is communicated with the top of the other side of the desulfurization tower body, and a slurry pond is arranged at the bottom of the desulfurization tower body. A gas flow transmission power mechanism, a dynamic mass transfer synergistic mechanism, an atomization spraying mechanism and a demister are respectively arranged in the desulfurization tower from bottom to top, and a compression gas injection forced oxidation mechanism is arranged on the desulfurization tower; the waste gas kinetic energy is converted into mechanical energy, compressed injection of air is achieved through linkage gear transmission, calcium sulfite is forcibly oxidized into calcium sulfate, resource utilization of desulfurization products is achieved, and in the limited space of the desulfurization tower, sulfur-containing waste gas rises in a rotational flow mode and collides with atomized slurry at a high speed, the slurry is cut up, and gas waves continuously collide with one another to conduct rotary cutting. Liquid particles are crushed to be finer and thinner, and gas and liquid are fully mixed, so that the desulfurization efficiency is improved.

The invention discloses a waste gas washing spray tower with an anti-corrosion structure, and relates to the technical field of waste gas treatment.The waste gas washing spray tower comprises a tower body, a liquid storage tank formed in the tower body, a gas inlet pipe installed on the side wall of one side of the tower body and a gas outlet pipe installed at the top of the tower body; spraying assemblies are mounted in the tower body above the two filler purification assemblies, a demister is mounted on the inner wall of the tower body below the gas outlet pipe, and an anti-corrosion lining is laid on the inner wall of the tower body. By arranging the filler purification assembly, the effect that blocked filler can be automatically discharged from the rectangular grid during cleaning is achieved, manual scraping is not needed, the labor burden of workers is reduced, and the speed of taking the filler out of the spray tower is increased; and by arranging the traction mechanism, the effect that the traction rope pulls and drives the two filler purification assemblies to synchronously turn over is achieved, and simultaneous discharging of filler in the two filler purification assemblies is facilitated.

The present invention provides a dust removal and demisting device based on wet desulfurization, which belongs to the field of desulfurization equipment. It includes a desulfurization tower, and the upper part of the desulfurization tower is sequentially provided with a lifting gas cap liquid collection type dust removal and demisting device, a flat tube bundle dust removal and demisting device, and a tube bundle type dust removal and demisting device from bottom to top. The lifting gas cap liquid collection type dust removal and demisting device is provided with a first-stage swirl impeller, and the tube bundle type dust removal and demisting device is provided with a fourth-stage swirl impeller. A first flushing nozzle is provided between the tube bundle type dust removal and demisting device and the flat tube bundle dust removal and demisting device, a second flushing nozzle and a third flushing nozzle are provided between the flat tube bundle dust removal and demisting device and the lifting gas cap liquid collection type dust removal and demisting device, and a fourth flushing nozzle is provided below the lifting gas cap liquid collection type dust removal and demisting device. The lifting gas cap liquid collection type dust removal and demisting device is also connected to a liquid collection discharge pipeline, and the liquid collection discharge pipeline is connected to the outside of the desulfurization tower. Compared with the prior art, the present invention has the characteristics of anti-blocking and strong dust removal and demisting stability, and can perform efficient and continuous dust removal and demisting.

The invention discloses a flue gas desulfurization structure for a thermal power plant, and relates to the technical field of flue gas desulfurization, the flue gas desulfurization structure comprises a desulfurization tower, a flue gas inlet pipe is fixed at the front end of the desulfurization tower, a flue gas discharge pipe is fixed at the upper end of the desulfurization tower, a support is fixed on the outer wall of the desulfurization tower, and support legs are fixed at corners of the bottom end of the support; and a demister is arranged in the desulfurization tower. Through cooperation of the driving part and the spraying part, the first booster pump of the spraying part extracts desulfurization reaction liquid from the liquid storage tank, the desulfurization reaction liquid is distributed to the rotary spraying pipe through the adapter pipe, and full-coverage spraying is achieved through the atomization nozzles; a motor of the driving part drives a bevel gear I to drive a bevel gear ring I and an inner ring spraying pipe to slowly rotate and to be matched with a barrier plate to synchronously rotate, so that the spraying coverage area is enlarged, reaction products attached to the inner wall of the tower are scraped in real time, and blockage is prevented.

The invention discloses an ammonia desulfurization method capable of remarkably reducing ammonia escape and application of the ammonia desulfurization method, and belongs to the technical field of flue gas ammonia desulfurization. The desulfurization method comprises the following steps: (1) flue gas enters a concentration cooling section from a flue gas inlet and is cooled to 60 DEG C or below; (2) the flue gas rises to an absorption section, is demisted by a first filler layer, a second spraying mechanism and a first-stage demister and then enters a purification section; (3) enabling the flue gas to pass through a second filler layer in the purification section, washing with water to capture ammonium sulfate and redundant ammonia, demisting by a combined demister, and feeding into a chimney for up-to-standard emission; and (4) compressed air enters the oxidation section to oxidize the absorption liquid refluxed by the absorption section, and the liquid formed after sufficient oxidation is sent to the absorption section to be sprayed. According to the method, the ammonia escape amount can be remarkably reduced, meanwhile, the absorption efficiency of sulfur dioxide in the flue gas can be improved, the ammonia escape amount is remarkably reduced fundamentally, and the aerosol phenomenon is avoided.

The invention relates to the technical field of desulfurization towers, in particular to an ultrasonic agglomeration dedusting and demisting device of a desulfurization system and an operation method thereof, and aims to solve the problems that in the prior art, fine particles in flue gas are not subjected to agglomeration pretreatment, a targeted cleaning mechanism is lacked, and a demister is easily blocked due to filter residue attachment after long-term operation; and finally, the dedusting and demisting efficiency of the desulfurizing tower is reduced. According to the invention, the ultrasonic generation module is started, parameters are dynamically optimized based on a PLC and a fuzzy PID algorithm to induce agglomeration of PM2.5 and fog drops, the particle size is increased through a depressurization ring, and then efficient gas-liquid separation is carried out through a dual separation mechanism; when filter residues are attached, the motor drives the spray pipe to rotate and spray, the cleaning assembly is matched for wiping, the guide assembly guides waste liquid, the intelligent system adjusts in real time and triggers a cleaning program, a pretreatment and cleaning mechanism is established, blockage is eradicated, stable operation of parts is ensured, and the dust and mist removal efficiency is improved.

The invention provides a cement kiln bypass ventilation and high-chlorine material treatment device, and relates to the technical field of bypass ventilation devices.The spraying mechanism comprises a fixed rotating shaft, the fixed rotating shaft is fixedly installed through a fixed output shaft and a servo motor, and a first bevel gear is arranged on the fixed rotating shaft; a first bevel gear is rotatably mounted on the annular steel tank body, a second bevel gear is engaged with the circumferential surface of the first bevel gear, a third bevel gear is engaged with the circumferential surface of the second bevel gear, a first fixing shaft is rotatably mounted on the second bevel gear, and the first fixing shaft is fixedly mounted on the annular steel tank body. A spiral blade centrifugal separation unit and a rotational flow plate demister fine treatment unit are innovatively integrated in the device, a spiral blade adopts a variable pitch design and is driven by a servo motor, the rotating speed can be adjusted according to the working condition of flue gas, airflow is driven to form a strong rotational flow field, and high-chlorine dust with large particle size in the flue gas rapidly moves towards a tank wall under the action of centrifugal force.

The invention discloses a steam boiler flue gas desulfurization circulating purification device and belongs to the technical field of flue gas purification. The device comprises a desulfurization treatment box, the inner wall of the desulfurization treatment box is fixedly connected with a mounting frame, the top of the mounting frame is provided with a spraying mechanism, the spraying mechanism is internally provided with a flushing mechanism, the inner wall of the desulfurization treatment box is rotatably connected with a demister, and the surface of the demister is provided with a vibration falling mechanism. A circulating water tank is fixedly mounted on the side wall of the desulfurization treatment box, the spraying mechanism comprises a plurality of atomizing nozzles arranged in the desulfurization treatment box and controls the atomizing nozzles to continuously move in the spraying process to improve the spraying comprehensiveness, and the flushing mechanism comprises connecting rings arranged on the outer walls of the atomizing nozzles and drives the atomizing nozzles to turn over by an angle to flush the atomizing nozzles. And the vibration-off mechanism comprises an abutting rod arranged above the demister, and the abutting rod is controlled to continuously knock the demister, so that slurry adsorbed in the demister is vibrated off.

The utility model belongs to the technical field of biomass biogas treatment, and discloses a biogas filtering device which comprises a tank body, a wire mesh demister and a cleaner, and the tank body is provided with a gas inlet, a gas outlet and a water outlet; the interior of the tank body is divided into an upper cavity and a lower cavity by the wire mesh demister, the upper cavity is communicated with the air outlet, and the lower cavity is respectively communicated with the air inlet and the water outlet; the cleaners are connected with the tank body through flanges, each cleaner comprises a water inlet end and a water outlet end, the number of the cleaners is two, and the two water outlet ends extend into the upper cavity and the lower cavity respectively and face the wire mesh demister. Through the arrangement of the cleaner, the wire mesh demister can be quickly cleaned, the time cost and the labor cost required for disassembling the tank body and the wire mesh demister are saved, and the biogas treatment efficiency is effectively improved.

The invention relates to the technical field of wire mesh demisters, in particular to a wire mesh demister for gas-liquid separation, an annular rotating groove is reserved between an outer pipe and an upper pipe, a fluted disc rotationally mounted through a bearing is arranged at the upper end of the outer pipe and the upper end of the upper pipe, and an extension rod extending along the annular rotating groove and fixedly connected to the fluted disc is arranged on the rotating pipe; the air suction device has the advantages that the rotatable rotating pipe is arranged in the middle of an existing silk screen layer, the piston rod is matched with the one-way valve, the air suction purpose is achieved, then the piston rod is driven to descend to extrude air flow, the air suction effect is improved, and the service life of the air suction device is prolonged. The air flow is discharged along the opening groove right facing the silk screen layer, the adhered water drops are blown to be rapidly gathered to form water drops to drop, blocking is avoided, through cooperation of the driving assembly and the linkage assembly, the rotating pipe is driven to rotate along the circumference of the silk screen layer while the piston rod descends, and full-angle cleaning of the silk screen layer is achieved.

The invention relates to the technical field of control, in particular to a method and device for calculating the water saving amount of a demister of a wet desulfurization system, electronic equipment and a storage medium, the method is applied to a control unit in the wet desulfurization system, and a spraying area, a water collecting area and a demisting area are sequentially arranged in a desulfurization tower of the wet desulfurization system in the flue gas flowing direction. And at least one demister is arranged in the demisting area. According to the method for calculating the water-saving amount of the demister of the wet desulphurization system, the average water-saving amount is calculated by dynamically calculating the number of iterations and the single-time water-saving amount of cyclic utilization of flushing water in combination with the structural characteristics of a spraying area, a water collecting area and a demisting area in a desulphurization tower and the operation logic of a cyclic flushing water system, and the water-saving amount of the demister of the wet desulphurization system is calculated. Accurate quantification of the water saving amount and system optimization control are achieved, the water saving effect is quantified, data support is provided for system design, and meanwhile the water balance reliability of the desulfurization system is improved.

The invention belongs to the field of coal mine dust removal, and relates to a coal mining machine onboard integrated efficient dust remover and a filtering method thereof, an air inlet, a nozzle, a multi-stage filter screen, a corrugated plate demister, a centrifugal fan and other components are integrated to form an efficient dust removal system. During operation, dust-containing air enters through the air inlet, water mist is sprayed out of the nozzles to preliminarily wet dust, and then the dust with different particle sizes is effectively captured through multi-stage filtration of the coarse-efficiency filter screen, the medium-efficiency filter screen and the high-efficiency filter screen. And then the air is dehydrated by a demister, and clean air is discharged by a centrifugal fan. The equipment is provided with a dust cleaning brush and a differential pressure sensor, the filter screen can be automatically cleaned, and the filtering effect is guaranteed. The system has the advantages of efficient dust fall, water saving, environmental protection, intelligent monitoring, compact structure and convenient maintenance, can obviously reduce the dust concentration of the working face, improves the working environment, ensures the health of miners, and is a preferable scheme for dust control of the fully mechanized coal mining working face.

The invention discloses a desulfurization and denitrification tower demister convenient to clean, and relates to the technical field of desulfurization and denitrification tower demisters, the desulfurization and denitrification tower demister convenient to clean comprises a cylindrical shell, and the upper end of the cylindrical shell is fixedly provided with a mounting ring used for assisting in mounting in a desulfurization and denitrification tower; a mounting cylinder is arranged in the middle of the interior of the cylindrical shell. According to the centrifugal demister, after operation and use are completed, through mutual cooperation of the rotating assembly, the driving assembly, the cleaning assembly, the scraping and separating assembly and other parts, conveyed cleaning liquid moves into the strip-shaped water tank and is sprayed out towards the surfaces of centrifugal blades through the fan-shaped spray heads; through spraying of cleaning liquid and reciprocating motion of the strip-shaped water tank along the track below the centrifugal blade, the cleaning liquid can make full contact with different positions below the centrifugal blade, and thorough cleaning operation on a scale layer formed on the lower surface of the centrifugal blade is facilitated.

The invention belongs to the technical field of formaldehyde waste gas treatment for plywood gluing, and relates to a circulating formaldehyde adsorption regeneration system for plywood gluing. The electrostatic-ultrasonic coupling demister and a humidity self-adaptive purification adsorption path are introduced, so that the problem that the efficiency of a traditional adsorption process is reduced under the conditions of paint mist particle interference and humidity fluctuation is solved, and the adaptability to complex working conditions is improved; an adsorbent performance attenuation kinetic model and a multi-source data intelligent control strategy are established, accurate monitoring of adsorption saturation and dynamic adjustment of an adsorption penetration threshold value and regeneration process parameters are achieved, and the problem that the treatment effect is reduced due to adsorbent performance attenuation is solved; through the design of the grading regeneration technology and the tail gas catalytic oxidation device, the energy utilization efficiency in the adsorbent regeneration process is optimized, high-concentration formaldehyde mixed gas is thoroughly decomposed into harmless substances, and the risk of secondary pollution is avoided.

The invention discloses a desulfurizing tower demisting device which comprises a desulfurizing tower, the demisting device is installed at the lower end of a smoke outlet of the desulfurizing tower, the demisting device comprises a circular mist catcher and a plurality of spraying devices, the circular mist catcher is coaxially and fixedly sleeved with an annular guide rail, and the spraying devices are evenly distributed in a circumferential array. The spraying devices are installed on the annular guide rail in a sliding mode through sliding blocks at the lower ends of the spraying devices, the ends, close to each other, of the spraying devices are provided with nozzles, and when the circular mist catcher needs to be cleaned, the spraying devices can synchronously conduct circular motion around the axis of the circular mist catcher along the annular guide rail. According to the demisting device of the desulfurizing tower, the plurality of spraying devices do circular motion around the axis of the circular mist catcher, so that the spraying devices can uniformly spray all positions on the circular mist catcher; therefore, the round demister can be cleaned in all directions, and sulfate crystals are prevented from remaining on the round demister.

A CO2 recovery device includes: a cooling tower into which an exhaust gas containing carbon dioxide is introduced to cool the exhaust gas; and an absorption tower into which the exhaust gas cooled in the cooling tower is introduced and which brings the exhaust gas into contact with an absorption liquid to remove the carbon dioxide from the exhaust gas, in which the absorption tower has an absorption tower body through which the exhaust gas is flowable and which has a tubular shape, and a demister that is disposed inside the absorption tower body and is configured to remove mist contained in the exhaust gas as the exhaust gas flows therethrough, and the CO2 recovery device further comprises a flow velocity regulating section that regulates the flow velocity of the exhaust gas flowing through the demister to be within a predetermined range.

The utility model discloses an efficient turbulent flow desulfurizing tower, and relates to the technical field of industrial flue gas desulfurizing towers. An efficient turbulent flow desulfurizing tower comprises a tower body, and the internal structure of the tower body is composed of secondary turbulent flow layers; the first layer is a first turbulent flow layer which uses a pore plate type gas distribution device for turbulent flow, the second layer is a liquid distribution layer which is composed of a novel multi-stage disc type liquid distributor and a novel packing layer, a novel multi-time gas turbulent flow structure is adopted in the internal structure of the tower body, gas enters the tower from bottom to top, and a layer of pore plate is firstly arranged as the first turbulent flow layer; a disc type liquid distribution device and a liquid distribution layer are arranged upwards to serve as a gas-liquid contact area, a tube bundle type demister layer is arranged on the upper portion of the contact area to serve as a secondary turbulent flow layer, a rod type tertiary turbulent flow layer is arranged finally, and through multiple times of turbulent flow, the tower body is compact in structure and full in gas-liquid contact, so that the desulfurization efficiency is improved, and the desulfurization cost is reduced.

The present invention relates to the technical field of sludge drying, and in particular to a steam-regenerated sludge drying device. A steam-regenerated sludge drying device comprises a steam thin-layer dryer, an external steam input port and a flash evaporation device. The external steam input port is connected to the steam thin-layer dryer. The flash evaporation device is provided with a demister, a liquid retainer and a sprayer in sequence. The external steam input port is connected to the flash evaporation device. The first condensate output port of the steam thin-layer dryer and the second condensate output port of the flash evaporation device are connected to the sprayer through a condensate delivery pipe. A condensate circulation water pump is provided on the condensate delivery pipe. A steam-regenerated sludge drying device has the advantages of fully recycling and utilizing steam condensate, greatly reducing the loss of condensate waste heat; increasing the temperature of the regenerated steam, reducing the heat load of purchased steam or steam boilers, reducing the production and operation costs of the enterprise, saving energy and protecting the environment, and achieving comprehensive energy utilization.

The utility model relates to the technical field of demisting, in particular to a water-saving demister. A baffling grid-type plate is obliquely arranged in the shell, a conical wire mesh cap is arranged at the top of the square shell, and a baffling plate of the baffling grid-type plate is obliquely arranged. According to the technical scheme, in the process that mist enters and rises from the bottom of the square shell, the mist passes through the multiple baffling grid-shaped plates and finally reaches the conical silk screen cap, the mist makes contact with the baffling grid-shaped plates and the conical silk screen cap, water in the mist is accumulated on the baffling grid-shaped plates and the conical silk screen cap, and after the water is accumulated to a certain degree, the water in the mist flows out of the conical silk screen cap. Accumulated water drops can slide to the bottom of the square shell along the inclined baffling grid-shaped plate and the surface of the conical wire mesh cap, so that water in mist is recycled, the water collecting rate is high, the structure is simple, and the manufacturing cost is low.

The invention relates to the technical field of waste gas treatment equipment, and particularly discloses a waste gas recovery treatment device for LNG (Liquefied Natural Gas), which comprises a demister, the demister comprises a plurality of demisting blades, a desulfurization tower is provided with a dismounting opening, a dismounting device is arranged in the desulfurization tower, and the dismounting device comprises a mounting frame, a mounting rod, an adjusting rod, a rotating mechanism and an adjusting assembly. A sliding groove is formed in the mounting rod, the adjusting rod is movably matched with the sliding groove, the adjusting assembly drives the rotating mechanism to move, the rotating mechanism drives the adjusting rod to rotate, the adjusting rod drives the multiple demisting blades to get close to each other or get away from each other, and after the multiple demisting blades get close to each other to be adjusted, the adjusting assembly and the multiple demisting blades slide out of the disassembling opening to be disassembled. The adjusting assembly and the multiple demisting blades slide in from the dismounting opening, and the multiple demisting blades are installed after being separated from each other and adjusted; the waste gas recovery treatment device for the LNG has the effect that the use efficiency of the demister can be improved.

The invention relates to the technical field of waste gas treatment, and particularly discloses a purification treatment device suitable for chemical waste gas stink and a treatment method thereof.The purification treatment device comprises an acid pickling tower, an alkaline washing tower, a heat exchange washing tower, a demister, pulse plasma equipment and a water washing tower which are sequentially communicated; acid or alkaline malodorous components in waste gas are removed through an acid-base neutralization reaction of the acid washing tower and the alkaline washing tower, soluble malodorous gas is further removed by spraying a washing solution in the heat exchange washing tower, liquid drops in the waste gas are removed by the demister, and the liquid drops are prevented from carrying pollutants and entering pulse plasma equipment to influence the plasma treatment effect. The pulsed plasma technology intensified decomposition has efficient treatment capacity on refractory malodorous substances, the overall treatment efficiency is remarkably improved, residual pollutants in the waste gas are further removed by spraying clear water in the water scrubber, tail end purification is guaranteed, standard emission of the waste gas is guaranteed, and the malodorous treatment efficiency of the chemical waste gas is improved.

The present invention relates to a dust removal and desulfurization tower, comprising a tower body provided with an air inlet and outlet, and a spray unit and a demister provided within the tower body; the spray unit comprising a spray pipe and a nozzle provided on the spray pipe, the spray pipe being connected to an external water source via a water pipe; wherein: a spray zone consisting of a plurality of vertically arranged pipes is provided in the middle and lower portion of the tower body, and spray units are provided above and below the spray zone; a water retaining chimney is provided above the spray zone, and the demister is provided between the water retaining chimney and the air outlet. The present invention has a reasonable layout within the tower, sufficient mixing of exhaust gas and water mist, an increased adsorption area, and improved dust removal and desulfurization efficiency; the chimney design within the tower further increases the chances of water mist collision, thereby improving the exhaust and demisting effect at the air outlet.

The invention provides a coke oven gas desulfurization tower. The coke oven gas desulfurization tower comprises five cylinders, the five cylinders sequentially comprise a liquid storage cylinder, a spraying cylinder, a filtering cylinder, a demisting cylinder and a heat exchange cylinder from bottom to top, a gas inlet pipe is fixedly installed on the outer wall of the spraying cylinder, an exhaust pipe is fixedly installed at the top end of the heat exchange cylinder, first fixing ring frames are fixedly installed on the outer walls of the four cylinders located on the lower portion, and second fixing ring frames are fixedly installed on the outer walls of the four cylinders located on the lower portion. First fixing ring frames are fixedly installed on the outer walls of the four cylinders located on the upper portion, second fixing ring frames are fixedly installed on the outer walls of the four cylinders located on the upper portion, sealing splicing mechanisms are arranged on the four first fixing ring frames, spraying mechanisms are arranged on the liquid storage cylinder and the spraying cylinder, a filtering structure is arranged in the filtering cylinder, and a demister is arranged in the demisting cylinder. The coke oven gas desulfurization tower provided by the invention has the advantages of convenience in maintenance and good desulfurization effect.

The invention discloses an artificial stone production line waste gas styrene pollution component resource recovery method which comprises the following steps: artificial stone production line waste gas enters a rotating wheel unit under the suction action of a fan for adsorption and concentration, purified tail gas after adsorption is discharged, and desorbed concentrated gas enters an absorption tower to be in countercurrent contact with an absorbent barren solution in the tower; a styrene component is absorbed, and concentrated gas at the top of the tower is demisted by a demisting tower and then is led out, or is fed into an incinerator, or is mixed with waste gas of an artificial stone production line and then is fed into a rotating wheel unit; a rich solution absorbing the styrene component at the bottom of the absorption tower is heated and then fed into a flash evaporation analysis unit, the styrene component is analyzed and recycled, and a barren solution obtained after analysis returns to the absorption tower to serve as an absorbent to circularly spray and absorb styrene. The method has the advantages of simple process, effective coupling of absorption and runner adsorption, low investment and operation cost, good tail gas purification effect, energy saving, consumption reduction and high styrene recovery rate.

The invention discloses a spraying dedusting desulfurizing tower, which comprises a desulfurizing tower body, the bottom of the desulfurizing tower body is connected with a detachable tower bottom, the outer wall of the detachable tower bottom is provided with a flue gas inlet, the bottom of the detachable tower bottom is provided with a liquid outlet, the top of the desulfurizing tower body is provided with a flue gas outlet, and the liquid outlet is provided with a liquid outlet. An adsorption mechanism is arranged in an inner cavity of the top of the detachable tower bottom, a filtering assembly is installed at the bottom of the detachable tower bottom, a demister is arranged at the position, close to the lower portion of the flue gas outlet, in the desulfurizing tower body, and the desulfurizing tower is excellent in dust falling effect and capable of discharging impurities.

The utility model relates to the technical field of air separation devices, in particular to a demister for an air separation device, which comprises a demister body, the demister body is applied to an evaporator, the inner wall of the evaporator is fixedly connected with a support block, the inner side of the evaporator is provided with a demister body, and the demister body is lapped on the upper surface of the support block. Through rotation of the worm, the gear can rotate under the action of the worm, the rotating rod drives the scraping plate to rotate, the scraping plate rotates and rubs the lower surface of the first silk screen plate, foam on the first silk screen plate can be broken, attachment of the foam on the first silk screen plate can be reduced, and the service life of the first silk screen plate is prolonged. The foam can be better separated from dropping liquid, the defoaming efficiency and effect can be improved, meanwhile, a second silk screen plate can rotate along with the second silk screen plate under the action of a rotating rod, overlapping and dislocation of holes of the second silk screen plate and holes of a first silk screen plate are achieved through rotation of the second silk screen plate, and the foam can be better broken.

The utility model discloses a demister and a demisting system. The demister comprises a barrel body, a flow guide assembly and an oil collecting assembly, the barrel body comprises an inner cavity, a first end and a second end, the first end and the second end are oppositely arranged, and the first end is an air exhaust end; the flow guide assembly comprises a horn outer shell, a horn inner shell and a plurality of flow guide blades distributed between the horn outer shell and the horn inner shell, the horn outer shell comprises a first small opening and a first large opening, the horn inner shell comprises a second small opening and a second large opening, the first small opening is a mist inlet, the second small opening is closed, and the second large opening is closed. The first large opening is connected with the first end, and a flow guide channel communicated with the inner cavity is formed between every two adjacent flow guide blades; the oil collecting assembly comprises an oil collecting shell with an oil collecting cavity and an oil pipe, the oil collecting cavity is communicated with the inner cavity, and the oil collecting device has the advantages of being good in demisting effect, simple in structure, free of filtering, good in demisting effect, capable of saving cost and capable of improving collecting efficiency.

The invention provides transformer oil chromatography on-line monitoring equipment, and belongs to the technical field of transformer oil chromatography on-line monitoring, the transformer oil chromatography on-line monitoring equipment comprises a monitoring equipment main body, a transformer body and a background system.The monitoring equipment main body is internally provided with a chromatography data acquisition and processing module, an oil-gas separation module, a gas detection module and a gas source module; the device further comprises a separation gas production assembly and a knocking assembly. The spiral piece and the stirring paddle are matched to promote oil-gas separation, and the spiral piece can slide up and down to break the laminar flow state, so that the gas-liquid separation efficiency is greatly improved; self-produced carrier gas is pushed by the piston plate, the gas inlet efficiency is improved, the piston plate conveys gas in one direction to ensure that the gas enters a detection link in time, and backflow loss is avoided; during purification detection, the wire mesh demister purifies gas, the knocking assembly prevents the gas from being blocked, and it is guaranteed that the purification function is stable; the electromagnet not only drives the spiral piece to move to enhance the oil disturbance and centrifugal separation effect, but also assists in pushing oil through the interaction with the flow pushing magnetic plate to further promote oil-gas separation.

The invention relates to the field of dust removal equipment, in particular to a system for filtering dust in smoke, which comprises a spray tower and a purification tower, a smoke inlet is arranged at the top of the spray tower, a smoke outlet is arranged at the bottom of the lower part of the spray tower, the smoke outlet of the spray tower is communicated with an inlet of the purification tower, and a liquid collecting tank is further arranged on the spray tower below the smoke outlet. The smoke outlet of the spray tower is also connected with a filter device, the filter device comprises a filter screen and a cleaning assembly, and the cleaning assembly can clean the filter screen. According to the invention, the flow direction of the flue gas in the spray tower is consistent with the spray liquid of the spray device, so that the probability that the spray head of the spray device is blocked by dust particles in the flue gas can be effectively reduced, and the filter device can perform secondary dust removal and reduce the content of the dust particles when the flue gas enters the demister, so that the probability of blocking the demister is reduced.

The invention discloses an anhydrous formic acid preparation process and a preparation device, and relates to the technical field of anhydrous formic acid preparation, and the preparation device comprises a reboiler, a condenser, a liquid collection part, a cleaning part and a wire mesh demister. The invention further discloses an anhydrous formic acid preparation process which comprises the following steps: feeding raw materials, purifying, hydrolyzing, separating, dehydrating and collecting. The liquid is heated by arranging the reboiler, the heated liquid forms steam which rises upwards and passes through the cooler, one part of the steam continuously rises upwards and passes through the wire mesh demister, liquid drops in the steam are separated, the other part of the liquid is liquefied and flows back to the reboiler, and after the liquid drops in the steam are separated by the wire mesh demister, the liquid drops in the steam are separated by the wire mesh demister. The liquid drops flow into the liquid collecting tank; when the pipeline in the condenser is blocked, the cleaning part is utilized to dredge the pipeline of the condenser, the dredged impurities are cleaned into the liquid collecting part, and the pipeline in the condenser is cleaned in a non-stop state, so that the working efficiency is improved.