737 results about "Demister" patented technology

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 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 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 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 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 discloses an efficient PVC particle-containing tail gas purification system and method, and relates to the technical field of PVC treatment. A tangential tail gas inlet is formed in the middle of the side wall of the washing tower, a tail gas outlet is formed in the top, and a drain outlet is formed in the bottom; the input end of the first-stage venturi dust remover is connected to the output end of the cyclone separator; the second-stage venturi dust remover is coaxially arranged in the inner cavity of the washing tower, the top wall is hermetically connected with the top wall of the washing tower, the outer wall and the inner wall of the washing tower form an annular space, and the tangential tail gas inlet is communicated with the annular space; the water film generating device comprises a first group of water outlet holes formed in the inner wall of the washing tower in the annular space and a second group of water outlet holes formed in the outer wall of the secondary venturi dust remover; the particle intercepting layer is arranged above an air outlet of the second-stage Venturi dust remover; the airflow uniform distributor is arranged above the particle interception layer; and the spraying device comprises water injection nozzles which are symmetrically arranged at the upper end and the lower end of the demister. According to the system, PVC particles and impurities in tail gas are effectively removed through multi-stage purification, and the purification efficiency is high.

The invention discloses an industrial waste gas automatic detection device and method, and particularly relates to the technical field of waste gas detection.The industrial waste gas automatic detection device comprises a mounting frame, an air inlet barrel is fixedly connected to one side of the top of the mounting frame, a fan cover is arranged at one end of the air inlet barrel, and a heat tracing pipeline is connected to the inner wall of the air inlet barrel; a plurality of heat tracing pipelines are arranged at equal intervals, one end of the air inlet barrel communicates with a condensation chamber, the end, away from the air inlet barrel, of the condensation chamber communicates with a demister, one side of the demister communicates with a detection cavity, an analysis and detection unit is arranged in the detection cavity, and a sweeping assembly is arranged on one side of a particle filter plate. A fan frame is fixedly connected to the inner wall of one side of the air inlet barrel; the cleaning assembly is reversely driven by the fan shaft, so that the cleaning brush can clean the surface of the particle filter plate, the detection precision can be guaranteed in the subsequent detection process, and the situation that the subsequent waste gas detection precision is affected due to the fact that residual particles escape fine dust or gas is avoided.

The utility model discloses a demisting and spraying device for a desulfurizing tower of a thermal power plant, and relates to the technical field of desulfurizing towers of thermal power plants. The device comprises a barrel, a uniform spraying assembly and a cleaning assembly, the bottom of the barrel is communicated with a base, the bottom of the base is fixedly connected with an equipment box, a demister is fixedly connected to the top between the two sides of an inner cavity of the barrel, the uniform spraying assembly comprises a motor, and the top of the output end of the motor is fixedly connected with a conveying pipe. According to the utility model, the motor drives the conveying pipe to drive the hollow frame and the cleaning ring to rotate through the uniform spraying assembly, so that the atomizing nozzle sprays desulfurization slurry circumferentially around the axis of the cylinder body, and the top plate is extruded by the corrugated ring to push the turntable to move up and down, so that the conveying pipe synchronously generates axial displacement during rotation; the spraying track of the atomizing nozzle forms a spiral coverage area, so that a spraying blind area caused by low-speed vortex at the edge of the barrel is eliminated, the slurry is ensured to uniformly cover a flue gas flow channel, and the desulfurization efficiency is improved.

A petrochemical oil, gas and water three-phase separator, in the field of petrochemical equipment, comprises a tank body, an inlet is provided at one end of the tank body, a pre-separation device is provided on the side of the tank body near the inlet, a coalescing device is provided on the side of the pre-separation device away from the inlet, a separation chamber is provided on the side of the coalescing device away from the pre-separation device, an oil-water separation device is provided in the separation chamber, a first demister and a second demister are provided at intervals on the upper end of the tank body, the first demister is located above the pre-separation device, the second demister is provided above the separation chamber, and the tank body is provided with an oil drain port and a water drain port. The present invention can improve the problems of low oil, gas and water separation efficiency, narrow adaptability and poor anti-fluctuation ability of the three-phase separator in the prior art.

The utility model relates to the technical field of industrial waste gas treatment, and discloses a tail gas desulfurization device for a chemical industrial boiler, which comprises a bottom plate, a desulfurization tower is mounted in the middle of the top of the bottom plate, an inclined cover plate is mounted at the top of the desulfurization tower, and a glass steel plate is fixedly connected to the bottom of the inclined cover plate and positioned on one side of an inner cavity of the desulfurization tower. The inclined cover plate with the inclined glass steel plate is arranged in the desulfurization tower, so that fine steam which is not captured by the baffle plate demister is secondarily blocked, wrapped unseparated desulfurization slurry, residual acidic substances and harmful gases are intercepted to prevent discharged particulate matters from exceeding the standard, and the steam is guided to be condensed into water drops to flow along the inclined surface by virtue of the inclined structure, so that the desulfurization effect is improved. Compared with the prior art, the problems of blade scaling, system resistance increase and secondary water carrying caused by direct impact of water drops at the top are solved, the demisting efficiency is effectively maintained, and stable operation of the desulfurization system and standard emission of tail gas are guaranteed.

The utility model relates to the technical field of vinyl chloride production equipment, in particular to a vinyl chloride waste incineration flue gas washing tower which comprises a base and a neutralizing tower, the neutralizing tower comprises a gas inlet cylinder and a neutralizing part which are communicated, a gas inlet pipe is arranged in the gas inlet cylinder, and a gas outlet pipe is arranged in the neutralizing part. The neutralization part comprises a first filler part, a first liquid distributor, a bubble cap tray, a partition part, a second filler part, a second liquid distributor, a demister group, a demister cleaning device and an end socket which are sequentially arranged from bottom to top, and an air outlet is formed in the top of the end socket. According to the utility model, the residence time of flue gas in the tower is prolonged by adjusting the size proportion of the height and the pipe diameter of the neutralization tower, so that the neutralization reaction of the flue gas and alkali liquor is more thorough; the nozzle group for uniformly atomizing and spraying the alkali liquor is arranged, so that the contact area of the alkali liquor and the flue gas is increased; by arranging the bubble cap tray, flue gas is dispersed into fine bubbles in alkali liquor, and the contact area of the flue gas and the alkali liquor is increased, so that the neutralization efficiency is improved.

The utility model discloses a demister convenient for internal cleaning, which comprises a plurality of demisting blades and a blade fixing frame which are arranged at equal intervals, the top and bottom edges of the demisting blades are fixed through the blade fixing frame, the top of the blade fixing frame is provided with a screw rod mounting seat, the screw rod mounting seat is provided with a threaded rod, and the threaded rod is connected with the demisting blades. Limiting rods are symmetrically installed on the two sides of the top of the blade fixing frame, and cleaning scraping plates are installed on the multiple demisting blades. When the demister is used for capturing particle impurities and the like in airflow, after the demister is used for a period of time, a large amount of dust is attached to the surfaces of the demisting blades, the inner side surfaces of the demisting blades can be directly scraped and cleaned through the scraping assemblies arranged on the demister, and compared with a flushing mode, the inner side surfaces of the demisting blades can be scraped and cleaned through the scraping assemblies; according to the demister, cleaning dead corners can be avoided while quick cleaning is achieved, the convenience and practicability of the demister in the cleaning process are improved, and therefore cleaning and using are facilitated.

An integrated system for power generation and method thereof is disclosed, for generating and utilizing hydrogen gas or oxyhydrogen gas for enhancing fuel efficiency, thereby providing energy efficient power generation. An electricity generation system (402) generates and store an electric current in a battery for processing a gas generator (100) i.e., hydrogen (H2) or oxyhydrogen (HHO) gas generator. In the gas generator (100) an Automatic Transmit Power Control power supply (102) stabilizes power transmission, providing constant current by a current source (104) to an electrolysis setup (106) for generating hydrogen (H2) gas or oxyhydrogen (HHO) gas. A thermostat regulates temperature, and a demister separates steam from the generated gas. A burner (200) combusts the generated gas. A steam boiler (302) converts water into high pressure steam using the generated gas. A steam turbine (304) converts the high-pressure steam into mechanical energy. An electricity generator (306) converts mechanical energy into electrical energy.

The invention provides an absorption tower, system and method for removing carbon dioxide and controlling escape of organic amine through an amine method. The absorption tower comprises an absorption section, a cooling amine condenser, a washing section and a first multi-layer demister. The system comprises the absorption tower, a regeneration tower, a heat exchanger, a primary condenser, a first gas-liquid separation tank, a secondary condenser and a second gas-liquid separation tank. The method comprises the following steps: enabling flue gas to enter an absorption tower, absorbing CO2 in the flue gas, and washing with water; the rich liquor enters a regeneration tower for regeneration and CO2 release after heat exchange, and the barren liquor enters an absorption tower after heat exchange; and the regenerated gas enters a condenser to be cooled and then is separated by a gas-liquid separation tank to obtain CO2 gas and condensed water, and the condensed water flows back to the regeneration tower. According to the invention, the escape of organic amine in the process of removing CO2 by using an amine method is reduced, the environmental pollution is effectively reduced, and the problem that the system operation cost is increased due to amine loss is reduced.

The application discloses a self-adaptive acid-base washing tower, which comprises a tower body, a liquid pump and an air inlet pipeline arranged on one side of the outer wall of the tower body, an air outlet pipeline connected to the upper end of the tower body, a demister arranged at the upper end in the tower body, a plurality of spray pipes connected with the liquid pump and horizontally arranged below the demister in the tower body, a support plate for supporting the filler arranged on the inner wall of the tower body and above the air inlet pipeline, a pressing assembly arranged on the inner wall of the tower body and between the support plate and the spray pipes, an adjusting mechanism arranged on one side of the tower body, a driving mechanism arranged on the outer wall of the tower body, and a controller arranged on the outer side of the driving mechanism. The self-adaptive acid-base washing tower can adjust the amount of filler participating in the washing when the exhaust gas displacement increases or decreases, so that the washing efficiency is adjusted synchronously, and the problems that the washing liquid is wasted due to too small exhaust gas displacement or the washing is insufficient due to too large exhaust gas displacement are avoided.

The utility model discloses a waste gas treatment system for removing oil and organic matters, which relates to the technical field of waste gas treatment and comprises a bottom plate, an electrostatic oil removal device fixedly arranged on the bottom plate, a wire mesh demister fixedly arranged on the bottom plate, an activated carbon adsorption box fixedly arranged on the bottom plate and a fan fixedly arranged on the bottom plate. And connecting pipelines are fixedly arranged among the electrostatic oil removal equipment, the wire mesh demister, the activated carbon adsorption box and the fan respectively. According to the utility model, most oil mist is firstly removed by the electrostatic oil removal equipment, then dehumidified by the wire mesh demister and then enters the activated carbon adsorption box to remove most organic pollutants, and the purified waste gas is finally discharged up to the standard through the chimney. The activated carbon is not easy to block, the waste gas treatment effect is good, and the requirements of industrial production are met.

The utility model relates to a thermal desorption treatment device for high-concentration mercury polluted soil, which comprises a feeding device, the feeding device comprises a feeding hopper, the bottom of the feeding hopper is connected with the input end of a conveying belt, the output end of the conveying belt is provided with a spiral conveyer, and the output end of the spiral conveyer is provided with an indirect thermal desorption device; the indirect thermal desorption device comprises a material cavity, a combustion cavity is arranged below the material cavity, and a combustor is arranged below the combustion cavity; the tail part of the material cavity is provided with a gas phase treatment device, the gas phase treatment device comprises a high-temperature ceramic dust remover, the upper end of the high-temperature ceramic dust remover is communicated with the upper end of a first-stage condenser through a pipeline, the first-stage condenser is communicated with the upper end of a second-stage condenser through a pipeline, and the second-stage condenser is communicated with the tail part of the material cavity through a pipeline. The second-stage condenser is connected with the upper end of the freezer through a pipeline, the freezer is connected with the demister through a pipeline, and the demister is communicated with the upper ends of the first-stage adsorption tank and the second-stage adsorption tank through pipelines.

The present invention discloses a waste gas treatment device for a natural gas shaping machine, comprising a waste gas washing tower, wherein the waste gas washing tower comprises a washing tower body, an intelligent control cabinet is fixedly installed on the front of the washing tower body, a top of the washing tower body is fixedly connected to a gas collecting hood, a demister located at the top thereof is fixedly installed on the inner wall of the washing tower body, a spray piece located below the demister is fixedly installed on the inner wall of the washing tower body, and a water pipe is connected to the spray piece; a lifting force can be applied to a mounting bracket by a supporting platform mechanism, and an oil absorption felt column in a measuring component can be lifted out of condensed water by the mounting bracket, and the oil holding capacity of the oil absorption felt column is utilized to absorb organic matter and achieve a drainage effect, thereby reducing the water content in the oil layer and providing convenience for subsequent treatment; the organic matter inside the oil absorption felt column can be squeezed out by a desorption mechanism, thereby achieving regeneration of the oil absorption felt column and improving the practicality of the waste gas treatment device for the natural gas shaping machine.

The invention relates to a glass fiber reinforced plastic C-shaped hook demister, which comprises a support frame, a plurality of baffle plates and a driving part, the support frame is fixed on the outlet end of an absorption tower, the plurality of baffle plates are arranged at intervals along the length direction of the support frame, the upper edges of the baffle plates are rotatably connected with the support frame by taking the length direction of the baffle plates as the rotation center, and the driving part is fixed on the support frame. And the driving part is used for driving the baffle plate to rotate. Due to the adoption of the technical scheme, when the glass fiber reinforced plastic C-shaped demister with the hook is used for demisting, the rotating angle of the baffle plate is dynamically adjusted through the driving part, so that the baffle plate achieves dynamic balance during smoke demisting, the smoke demisting efficiency of the demister is ensured when smoke passes through, and the smoke demisting efficiency of the demister is improved. The possibility that the baffle plates are damaged due to the fact that the flue gas pressure intensity borne by the baffle plates is too large is also reduced, the service life of the demister is guaranteed to a certain extent, and the possibility that the absorption tower is damaged is also reduced.

The utility model relates to the technical field of separating devices, and discloses an oiling multiphase flow separator which comprises a separating tank, a connecting ring is movably connected to the left side of the upper surface of the separating tank, a demister is fixedly connected to the top end of the connecting ring, and a driving plate is fixedly connected to the right side of the outer surface of the connecting ring. By arranging the connecting ring, the demister, the driving plate, the cylinder and the moving block, when the first motor starts to operate, the threaded rod starts to rotate, the moving block is driven by the rotation of the threaded rod, so that the moving block and the cylinder start to move back and forth under the driving of the threaded rod, and meanwhile, the driving plate is driven by the movement of the cylinder; therefore, the driving plate, the demister and the connecting ring start to rotate along the inner surface of the notch ring, and the demister is in active contact with the oil fog drops due to rotation of the demister, so that the removal efficiency of the demister on the oil fog drops in the natural gas is improved.

The invention discloses a flue gas acid making system and a negative pressure balanced flue gas acid making method, and belongs to the technical field of flue gas acid making, the system comprises an electric demister, a drying tower, a sulfuric acid circulating tank, a sulfur dioxide fan, a preheater and a converter. According to the invention, a multi-stage collaborative demisting process mode of connecting the electric demisters in parallel and then connecting the electric demisters in series with the wire mesh demister is constructed, so that deep removal of acid mist particles with different particle sizes, especially submicron-order acid mist particles is realized. According to the invention, through a leaked gas recycling and equipment on-line repairing integrated technology, SO2 unorganized dissipation treatment and acid making process parameter optimization are deeply coupled. The pressure relief joint control device is additionally arranged between the pneumatic butterfly valves at the inlet and the outlet of the faulted electric demister, and the negative pressure in the electric demister can be controlled through adjustment of the main pressure relief valve and interlocking with a fan frequency conversion system, so that non-stop maintenance is realized.

This invention relates to the field of desulfurization equipment, and more particularly to a desulfurization device and method for flue gas from a prebaked anode calcining kiln. The device includes a spray chamber, a demister chamber installed at the top of the spray chamber, an exhaust stack installed at the top of the demister chamber, a liquid storage chamber installed at the bottom of the spray chamber, and a pump chamber installed on one side of the outer circumference of the liquid storage chamber. The output end of the pump chamber is connected to an inlet pipe, a first water outlet pipe, and a second water outlet pipe. The input end of the pump chamber is connected to an external water replenishment device. A ring frame is fixedly connected to the top of the first water outlet pipe, which is installed at the bottom of the demister chamber. Evenly distributed nozzles are installed on both the upper and lower parts of the ring frame. A conduit is fixedly connected to one side of the middle of the first water outlet pipe. This invention allows for flexible control of the fineness of the intercepting water curtain by adjusting the correspondence between the spray nozzles and the reserved openings through a rotatable inner pipe, significantly improving the interception efficiency of particulate impurities under different operating conditions and ensuring stable initial desulfurization and dust removal effects.

The utility model discloses a wire mesh demister, and relates to the field of demisters, the wire mesh demister comprises a mounting mechanism and a filter screen pad mounted in the mounting mechanism, the mounting mechanism comprises an upper mounting rack and a lower mounting rack, and four symmetrically arranged pull rods are mounted on the outer wall of the bottom of the upper mounting rack; two symmetrically-arranged mounting openings are formed in the outer wall of the top of the lower mounting frame, mounting assemblies are mounted on the inner walls of the two mounting openings, the filter screen pad is located between the upper mounting frame and the lower mounting frame, and the pull rod penetrates through the filter screen pad. Through the arrangement of the mounting mechanism, the filter screen pad is conveniently fixed, meanwhile, the two mounting assemblies in the mounting mechanism are conveniently matched with the pull rod to adjust the distance between the two mounting frames, the filter screen pad is conveniently pressed by adjusting the distance between the two mounting frames, and therefore it is avoided that a large gap exists between the mounting frames and the filter screen pad.

The invention discloses a combined desulfurization and denitrification system of a coal-fired boiler, relates to the technical field of flue gas treatment of coal-fired boilers, and aims to overcome the defects that in the prior art, a desulfurization and denitrification system is dispersed in structure, extensive in control means, low in integration level, inaccurate in response and difficult to efficiently and synergistically remove SOx and NOx. A reducing agent supply system, a desulfurization tower and an alkali liquor supply system; the denitration process of the system is carried out in a flue of the coal-fired boiler; the desulfurization process of the system is carried out in the desulfurization tower. The reducing agent supply system comprises a urea box, an electromagnetic control valve and two reducing agent ejectors arranged in the flue, and the two reducing agent ejectors are oppositely arranged. The desulfurization tower is sequentially provided with a waste liquid box, a plurality of spraying pipes and a demister from bottom to top. The method is suitable for cooperative removal of SOx and NOx in flue gas of a coal-fired boiler and integrated optimization and reconstruction of an ultralow emission control system.

The utility model relates to a door-free closable demister which comprises a frame body, a plurality of louvre blades, a closing component and a demister, the louver blades are sequentially arranged on one side of the inner wall of the frame body from top to bottom, and the two ends of each louver blade are rotationally connected with the frame body through a first bolt respectively; the demister is connected to the other side of the inner wall of the frame body; the closing assembly is arranged at the lower end of the frame body and connected with the louver blades. The closing assembly comprises two linkage pull rods, sliding grooves are formed in the two linkage pull rods respectively, limiting sliding blocks are arranged on the two inner walls of the frame body respectively, and the linkage pull rods are connected with the limiting sliding blocks in a sliding mode through the sliding grooves. The door-free closable demister aims to overcome the defects in the prior art, a large space is not needed when the door is opened and closed, and the door-free closable demister is convenient to open and close.

The utility model discloses a furfural residue utilization system which comprises a hydrolysis kettle, a residue storage warehouse, a stokehole stock bin, a drying flue, a crusher, a vibrating screen, a furnace top gas-residue cyclone separator, a boiler, a bag-type dust collector, an air preheater, an induced draft fan, a desulfurizing tower, a demister, a denitration device and a chimney, a slag discharging opening of the hydrolysis kettle is communicated with an inlet of the slag storage warehouse, a discharging opening of the slag storage warehouse is communicated with a feeding opening of the stokehole stock bin, a discharging opening of the stokehole stock bin is communicated with a feeding opening of the spiral conveyor, a discharging opening of the spiral conveyor is communicated with a feeding opening of the drying flue, and a discharging opening of the drying flue is communicated with a feeding opening of the crusher. A discharging port of the crusher is communicated with a feeding port of the vibrating screen, an undersize product outlet of the vibrating screen is communicated with a feeding port of the furnace top gas-slag cyclone separator, and a discharging port of the feeding port of the furnace top gas-slag cyclone separator is communicated with a fuel inlet of the boiler. According to the furfural residue recycling device, furfural residues can be efficiently treated, resource utilization of the furfural residues is achieved, and the combustion efficiency of the boiler is guaranteed.

The utility model provides a sintering flue gas dust removal device, which belongs to the technical field of sintering flue gas treatment and comprises a coarse dust removal device, a fine dust removal device and a flue gas emission device, the coarse dust removal device comprises a dust collection cover arranged above the pelletizing disc, a dust removal conveying pipeline connected with the dust collection cover and a spraying structure arranged in the dust removal conveying pipeline; the fine dust removal device comprises a shell, a folded plate dehydration device and a dehydrated flue gas retreatment device, and the folded plate dehydration device is arranged in the shell and is close to the flue gas slurry inlet end; the top end of the baffle is arranged at the top end of the interior of the shell, and the airflow uniform distribution plate, the water bath assembly and the tube bundle demister are sequentially arranged in a space formed by the baffle and the inner side wall, close to the dust removal flue gas discharging end, of the shell from bottom to top. By utilizing the device, the problems of bag pasting and corrosion when a bag-type dust remover is used for removing dust from sintering flue gas containing water vapor generated in a sintering and pelletizing process in the prior art can be solved.

The invention relates to the technical field of petroleum separation product treatment, and discloses a petroleum refining separation product treatment device which comprises a desulfurization tower body, a gas inlet pipe and a gas outlet pipe are mounted on the surface of the desulfurization tower body, a demister is mounted on the inner wall of the desulfurization tower body, and a spraying mechanism is arranged on the inner wall of the desulfurization tower body. Water is supplied to the hollow spray pipe and the cavity of the mounting disc through the water supply device, the spray holes in the surface of the mounting disc can pre-spray petroleum gas entering the desulfurization tower body, then the petroleum gas is intercepted by the mounting disc, the petroleum gas uniformly enters the hollow spray pipe, and the petroleum gas is secondarily sprayed through the hollow spray pipe, so that the desulfurization efficiency is improved. A pushing part of the control assembly is matched with a rotating part, so that the angle of the baffle plate can be controlled, the speed of discharging petroleum gas from the hollow spray pipe is controlled, insufficient contact time caused by too fast airflow is reduced, uniform and sufficient contact between the petroleum gas and the desulfurization liquid is realized, and the residual quantity of sulfide is effectively reduced.