132results about How to "Reduce escape" patented technology

The invention belongs to the technical field of dust separation, and particularly relates to a pulse dust removal device for a feed production line, the pulse dust removal device comprises a dust removal box body and a control cabinet arranged on one side of the dust removal box body, the bottom of the dust removal box body is fixedly communicated with a dust collection hopper assembly, and a dust inlet pipe is inserted into the upper end of the side wall of the dust collection hopper assembly; a plurality of dust filter bag assemblies are arranged in the dust removal box body, and a clean air exhaust pipe is inserted into the upper end of the side wall of the dust removal box body. The device can perform accurate pulse dust removal on the blocked dust filter bag, reduces unnecessary loss, is good in blockage removal timeliness, can delay the blockage process of the filter bag, facilitates feed dust filtration and separation, can guide air flow to be vertically downward during pulse dust removal, prevents secondary blockage of dust as much as possible, and improves the dust removal efficiency. And dust escape can be reduced when the filter bag fails to filter.

The present invention belongs to the technical field of nickel-based alloy connection, and specifically relates to a brazing method for improving the high-temperature welding performance of nickel-based alloy joints and a prepared multi-layer welded joint. First, the brazing material is processed into an amorphous brazing foil, and then the amorphous brazing foil is pre-placed between the joint surfaces of the workpieces to be welded of the Inconel625 nickel-based alloy, and then the workpieces to be welded are fixed and placed in a vacuum brazing furnace for brazing. After the brazing is completed, the workpiece group is cooled to below 100°C and then solution treated in a vacuum brazing furnace. The amorphous foil-shaped brazing material used in the present invention has a small difference in melting point from the parent material, which is conducive to capillary action and can optimize the formation and performance of the brazed joint; the solution treatment can improve the distribution and morphology of brittle phases such as borides in the brazing seam. The present invention can be used as a special brazing method for multi-layer brazing joints or Inconel 625 nickel-based alloys, and has great application prospects.

The invention discloses a method for preparing coke nuts by recovering coke powder and production equipment thereof, and relates to the technical field of energy preparation, the production equipment comprises a stirring mechanism, the stirring mechanism is provided with an extrusion port, the extrusion port is provided with a conveying track group, one end, far away from the stirring mechanism, of the conveying track group is provided with an ash falling box, and a dispersion screen is arranged in the ash falling box; the dry distillation tower is arranged at the output end of the ash falling box, the steam washing assembly is arranged on the dry distillation tower, the discharge port is formed in the dry distillation tower, the mixing box is arranged on the discharge port, the dosing pipe is arranged on the mixing box, the forming machine is arranged on the output port of the mixing box, the recovery plate is arranged at the bottom end of the forming machine, and the pressurizer is arranged on the recovery plate. The pressurizer is provided with a return pipe, the return pipe is communicated with the mixing box, the mixing box is provided with a combination feedback box, the combination feedback box is electrically connected with the dosing pipe and the mixing box through wires, and the device has the functions of layered dry distillation and forming feedback and automatic mixing proportion adjustment.

The utility model relates to a calcium carbonate ore crusher which comprises a bottom plate, a shell is mounted on the upper surface of the bottom plate, a pair of crushing rollers are rotationally mounted in the shell through a driving mechanism, mounting grooves are uniformly formed in the outer surfaces of the crushing rollers, mounting plates are arranged in the mounting grooves, and crushing teeth are uniformly mounted on the outer surfaces of the mounting plates; and a limiting groove is formed in the lower surface of the mounting plate in the length direction of the mounting plate, a limiting rod is arranged in the mounting groove and matched with the limiting groove, and a fixing mechanism capable of fixing the mounting plate is arranged on the side surface of the crushing roller. Through the arrangement of the fixing mechanism, when the crushing teeth are abraded or damaged, only the mounting plate provided with the crushing teeth needs to be replaced, the whole crushing roller does not need to be replaced, and therefore the maintenance cost and the working downtime are reduced, and the crushing roller can be conveniently replaced according to different types of crushed objects. And the crushing teeth with corresponding models are replaced for the crushing rollers, so that the application range of the device is expanded.

The invention discloses an ammonia gas nozzle and a denitration device.The ammonia gas nozzle comprises a body and a guide part, the body is provided with a spraying cavity extending in the axial direction of the body, one end of the spraying cavity communicates with a spraying pipe, the other end of the spraying cavity is a spraying opening, the guide part is located on the outer side of the spraying opening, and the front end of the guide part is connected with the body; the orthographic projection of the front end of the guide piece on the first plane is located on the inner side of the jet orifice, at least part of the peripheral edge of the orthographic projection of the tail end of the guide piece on the first plane is located on the outer side of the jet orifice, and the first plane is the plane where the jet orifice is located. The ammonia gas nozzle can spray ammonia gas in a larger range, the mixing ratio of the ammonia gas and flue gas is increased, ammonia escape is reduced, the chemical reaction speed is increased, and then the denitration effect is improved.

The application discloses a hot blast stove SCR ammonia injection optimization control method, device, equipment and medium, relates to the intelligent control technical field of steel smelting flue gas denitration, and comprises the following steps: when the corresponding SCR denitration system of the hot blast stove runs, system key process data is collected to determine the current system state vector; the current system state vector is input into the current world model, the obtained current potential state representation is input into the policy model, the obtained current candidate ammonia injection action and the current world model are used for state deduction to obtain the current ammonia injection action and the system state prediction result of the next moment; after the current ammonia injection action is used for control, the current world model is corrected based on the new current system state vector and the system state prediction result, the action is regenerated based on the new, previous moment current potential state representation, until the termination time, the obtained ammonia injection action sequence, state sequence and multi-objective reward function are used for optimizing the policy model. The application realizes intelligent optimization control of the ammonia injection amount.

The utility model provides an air purifier which comprises a shell provided with an airflow channel, and the airflow channel penetrates through the two opposite sides of the shell; the condensation filter screen is arranged at the air inlet end of the airflow channel and is used for uniformly distributing and condensing the inlet airflow; the composite filter element is arranged in the airflow channel, located between the air inlet end and the air outlet end of the airflow channel and used for filtering liquid pollutants, aerosol particles and gas pollutants in the condensed airflow; the fan is arranged at the air outlet end of the airflow channel, and the fan is used for guiding airflow to flow in from the air inlet end of the airflow channel and to be discharged from the air outlet end of the airflow channel; wherein the airflow channel is linear. According to the air purifier, the airflow backflow probability can be effectively reduced, the turbulent flow energy generation rate is greatly reduced, and airflow flows more smoothly in the airflow channel, so that airflow around the air purifier smoothly flows into the airflow channel, the smoke escape amount can be effectively reduced, and the oil smoke purification efficiency is improved.

The present invention provides a range hood, which relates to the technical field of kitchen appliances. The range hood includes a smoke collecting hood and a smoke guide plate. The smoke collecting panel of the smoke collecting hood is provided with a smoke inlet. The smoke guide plate is located outside the smoke inlet and corresponds to the smoke inlet. The left area of ​​the inner wall of the smoke guide plate is rotatably connected to a left supporting arm, and the right area is rotatably connected to a right supporting arm. The smoke collecting hood is equipped with a driving device. The driving end of the driving device is connected to the left supporting arm and the right supporting arm, and is used to drive the left supporting arm and the right supporting arm to perform telescopic movement. The smoke guide plate rotates relative to the smoke collecting panel under the telescopic action of the left supporting arm and the right supporting arm, and forms a left smoke collecting chamber and / or a right smoke collecting chamber with the smoke collecting panel. The range hood can adjust the form of the smoke collecting chamber formed by the smoke guide plate according to the user's use of the burner, so that the suction intensity when cooking with a single burner is greatly enhanced, and the suction effect of the range hood on cooking with a single burner is correspondingly improved.

The utility model relates to denitration equipment for solving the problem of high ammonia escape in flue gas of a waste incineration plant, and aims to solve the technical problems that the mixing uniformity of ammonia gas and flue gas is poorer, the ammonia gas and the flue gas are non-uniformly mixed, local escape is increased and secondary pollution is caused because the ammonia gas is directly introduced to be mixed with the flue gas at present. The mixing mechanism comprises a denitration pipe fixedly connected between the upper end and the lower end of an inner cavity of the denitration tower and denitration particles used for flue gas denitration, the denitration pipe is provided with an ammonia gas pipe, the ammonia gas pipe is distributed in an S shape, a plurality of gas outlet holes are formed in the inner side of the ammonia gas pipe at equal intervals, the middle of the top end of the ammonia gas pipe is communicated with a gas inlet pipe, and the gas inlet pipe is communicated with a gas outlet pipe. According to the utility model, ammonia gas in the denitration pipe is uniformly distributed in the denitration pipe at equal intervals, and NOx in flue gas is fully contacted and mixed with the ammonia gas, so that the mixing uniformity of the ammonia gas and the flue gas is improved, and secondary pollution caused by local ammonia gas escape and rise due to non-uniform mixing of the ammonia gas and the flue gas is avoided.

The application provides a kind of high molecular denitration system ammonia escape control equipment and control method, it is related to the technical field of removing nitrogen oxides in flue gas.The method applies the equipment, the equipment includes: denitration reactor, with the flue gas inlet pipe and the flue gas outlet pipe, the flue gas inlet pipe and the flue gas outlet pipe are sequentially provided with spray grid and reaction zone;Agent pipeline is connected with the spray grid;Adjusting mechanism;Ammonia escape detection mechanism is used to detect the ammonia escape in the flue gas outlet pipe;Control mechanism is used to control the adjusting mechanism according to the detection result of the ammonia escape detection mechanism, to adjust the flow size in the agent pipeline.When ammonia escape detection mechanism detects that the ammonia content in the flue gas outlet pipe is higher than the preset threshold, the flow in the agent pipeline is reduced by controlling the adjusting mechanism through the control mechanism, the ammonia escape is reduced, and the blockage and corrosion of the denitration reactor and downstream equipment caused by the generation of ammonium bisulfate due to water vapor, SO3 and ammonia escape in flue gas are avoided.

The application provides an ion source upper cover assembly and an ion source device. The fixed shielding cage in the ion source upper cover assembly can prevent the annular filament from being directly in contact with external structures to cause deformation or damage. The structure of the annular filament can effectively push the hot electrons emitted by the annular filament towards the ionization chamber, improve the ionization effect, and the ion source device is provided with the annular filament. The annular filament, the ionization cylinder and the shielding cage are coaxial, so that the electrons emitted by the annular filament can move in a more uniform electric field, thereby improving the probability of electron bombardment on the sample gas and improving the ionization efficiency and stability of the ion source device. Meanwhile, the ion source device has a wide range of emission current dynamic interval, strong anti-interference ability and wide range of sensitivity linear plateau area. The total pressure focusing electrode structure in the ion source device can also monitor the vacuum value in the detected space in real time, thereby playing a role in protecting the filament and the vacuum system.

The utility model relates to laser cutting equipment technical field discloses a dust collector of large -scale laser flat plate cutting machine, including the dust removal box that is equipped with the air inlet end and the air outlet end, the fan is butt -jointed and is arranged at the air outlet end, is provided with the filter screen in the dust removal box, is provided with the washing mechanism that can utilize the water flow to wash the filter assembly in the dust removal box, the washing mechanism includes the spray head assembly that sets up in the dust removal box and the water supply component that connects the spray head assembly, when using the dust collector in this scheme, the user only needs to open the spray head assembly when preparing to clean the dust removal box, utilizes the water flow to wash away the dust on the filter screen, and the dust mixes with water after entering the collection area, and it is not easy to produce secondary dust raising when cleaning, also can collect dust and centralized treatment through the filtration mode, compared with the prior art, the dust collector in this scheme can protect the user from the harm of secondary dust raising when cleaning the collection area of dust removal box, makes the dust collector more safe and environmental protection.

The utility model discloses a pouring device for a counterweight casting, which relates to the technical field of casting pouring, and adopts the technical scheme that the pouring device comprises a device base, a pouring outer column and a vibration fixing block, a fixing ring is fixedly mounted outside the device base, a sliding bulge is fixedly mounted outside the pouring outer column, and a mold component is slidably connected outside the sliding bulge; a vibration fixing block is fixedly installed outside the pouring outer column, the vibration fixing block is connected with a fluid vibration assembly, and the fluid vibration assembly comprises a sliding rod, a motor, a rotating disc and a vibration spring. Due to the liquidity of molten metal and shrinkage in the solidification process, accurate balance is difficult to achieve due to the defects of air holes, shrinkage cavities and the like which are easily generated, and the pouring efficiency is low in the casting process.

The utility model relates to dust removal board technical field, and disclose a kind of fixed structure of dust removal board for flue gas purification, including filter box, vibration plate is movably installed in the inside of filter box, installation component is fixedly installed in vibration plate bottom, the installation component contains the limiting frame fixedly installed in vibration plate bottom.The utility model compares with traditional fixed structure, the fixed structure is through positioning block one, positioning column and spring, it is convenient to limit and fix dust removal board, at the same time, through vibration motor drives dust removal board whole to vibrate, through dust removal board vibration design driven by vibration motor, effectively improve the dust removal efficiency, through the waste gas particle of adhering and shaking off, prevent accumulation and enhance particle collision, improve the capture probability, at the same time, vibration promotes particle more easily to fall off to filter box bottom, optimization collection process, reduce escape, improve collection rate.

The application provides a lithium-rich lithium-iron material, a preparation method and application thereof, and belongs to the technical field of lithium ion batteries. The lithium-rich lithium-iron material comprises a core and a coating layer coated on the surface of the core. The material of the core is lithium-rich lithium-iron doped with a first doping element, and the material of the coating layer is carbon material doped with a second doping element. The first doping element comprises at least one of Ti, W, Ni, Ce and Co, and the second doping element comprises at least one of B, N, S, O and P. The lithium-rich lithium-iron material is used as a lithium supplement in a battery, so that the capacity of the battery can be further improved and the gas production amount can be reduced.

The invention discloses a multi-stage plasma treatment device and method for enhancing removal of chlorinated organic compounds in factory water of a waterworks. The multi-stage plasma treatment device comprises a diameter change reaction container, a bearing shaft fixing and transmission device, a bearing shaft, a working electrode and turbulent flow fan blades. The diameter-variable reaction container is a cylinder of which the radius is gradually reduced, and sequentially comprises a water inlet, a turbulent flow section, three treatment sections and a water outlet; the inner side of the bearing shaft fixing and transmission device is fixed with the bearing shaft and drives the bearing shaft to rotate, and the outer side of the bearing shaft fixing and transmission device is fixed with the reaction container; a circuit is arranged in the bearing shaft; a working electrode is a needle-shaped tungsten electrode, each treatment section is provided with three annular belts, each annular belt comprises 12 electrodes, and the interval between every two adjacent electrodes is 30 degrees; the number of the turbulent flow fan blades is 12, and the turbulent flow fan blades are distributed at 30 degrees. According to the invention, to-be-treated water containing chlorinated organic matters and gas (Ar / O2 mixed gas) are pretreated into a gas-liquid mixture, a high-pressure reaction place is formed by virtue of a variable-diameter container, and high-temperature and high-energy plasmas are generated in a rotating electrode pulse type discharge manner, so that the chlorinated organic matters are efficiently pyrolyzed.

The utility model provides a kind of winding equipment for protective film production, comprising: pedestal, pedestal upper end is sequentially provided with film pressing roller group, spraying assembly, blowing assembly and tension keeping assembly from left to right, and the right end of pedestal is provided with winding roller assembly.The kind of winding equipment for protective film production, by being provided with spraying assembly, can be made to make protective film even spray on spray and avoid the liquid after a large amount of mist cooling on pedestal, by being provided with tension keeping assembly, can be made to keep the effect of protective film tension.

The invention provides a gallium nitride-based semiconductor laser with a gradient radiation recombination coefficient waveguide layer, which is characterized in that a lower waveguide layer and an upper waveguide layer are respectively a gradient radiation recombination coefficient lower waveguide layer and a gradient radiation recombination coefficient upper waveguide layer; and a fitting curve of In ion strength distribution or In atom concentration distribution and a fitting curve of radiation recombination coefficient distribution of the waveguide layer on the gradient radiation recombination coefficient both meet any function distribution of GaussAmp, InvsPoly and Hill in an SIMS test. A fitting curve of In ion strength distribution or In atom concentration distribution and a fitting curve of radiation recombination coefficient distribution of the waveguide layer under the gradient radiation recombination coefficient both meet BiDoseResp function distribution in an SIMS test. According to the invention, carriers, quantum recombination and a light field are efficiently localized, the laser gain is improved, the carriers and the light field are efficiently localized in an active layer (quantum well), meanwhile, non-radiative recombination and absorption loss of a waveguide region are inhibited, and the threshold current, slope efficiency and reliability are further improved.

The application discloses a high-temperature plasma cooperates with a converter to recover high-temperature flue gas heat-chemical waste heat, and belongs to the technical field of metallurgical process waste heat recovery and coal gas resource utilization. The method sprays carbonaceous powder into the primary flue gas of the converter at 1400-1600 DEG C, and converts the physical sensible heat of the flue gas into chemical energy of the coal gas by using the Boudou gasification reaction; the power-adjustable plasma heating device is arranged along the reaction zone, the high-grade electric heat is actively compensated for the reaction endothermic temperature drop, the temperature of the reaction zone is maintained above 1200 DEG C, the conversion rate is improved to 85-95% through the closed-loop regulation and control of the temperature and the CO2 conversion rate. The system comprises a carbon powder spraying device, a plasma heat-supplying reaction section, a detection unit and an intelligent regulation and control unit. The application uses the electric consumption of about 10-16 kWh / t of steel to pry the chemical energy recovery of 84-129 MJ / t of steel, the energy amplification ratio reaches 2-3.5 times, and the application has the advantages of accurate temperature control, second-level response, cleanness, high efficiency, low valley electric energy storage upgrading and the like.

The utility model relates to a kind of cooking bench and integrated cooker. The cooking bench includes: including: cooking bench body, the cooking bench body has operating platform and at least one cooking position;Smoke inlet channel, the smoke inlet channel is set on the operating platform, and it is set around the periphery of the cooking position;First smoke collection component, the first smoke collection component is set on the operating platform, and it is located at the side of the cooking position;Second smoke collection component, the second smoke collection component is set on the operating platform, the second smoke collection component is set relative to the first smoke collection component, and the second smoke collection component is located at the side of the cooking position. The cooking bench can improve the smoke exhaust efficiency of cooking bench.

The invention discloses a radix pseudostellariae cultivation container rack which comprises a box body, a plurality of adjusting rods are evenly distributed and rotationally connected in the box body, a plurality of cup stands inclining forwards are transversely and evenly distributed and fixed to the bottoms of the adjusting rods, and light supplementing lamps are fixed to one sides of the cup stands and the top of the inner side of the box body and located at the positions right opposite to cup rims of the cup stands. An angle adjusting mechanism is arranged between the multiple adjusting rods and the box body, a pulling plate is slidably connected to the front face of the box body, a handle is fixed to the front face of the pulling plate, a shell is fixed to the top of the box body, a winding mechanism is arranged in the shell, and shielding cloth is arranged between the pulling plate and the winding mechanism. According to the radix pseudostellariae cultivation container frame, the angle adjusting mechanism is operated to drive the adjusting rod to rotate, the inclination angle of the cup stand is changed through rotation of the adjusting rod, the illumination and ventilation conditions of radix pseudostellariae in the growth process are improved, and healthy growth of the radix pseudostellariae is promoted.

The utility model provides a dust cleaning device. The dust cleaning device comprises a shell, a negative pressure exhaust fan, a dust collection mechanism, an air suction pipe, an air suction cover, an air injection mechanism and a driving mechanism, the negative-pressure exhaust fan is arranged in the shell, one end of the negative-pressure exhaust fan is communicated with the dust collection mechanism, and the other end of the negative-pressure exhaust fan is communicated with the air suction cover through an air suction pipe; the air injection mechanism comprises an air blower, an air injection pipe and an air injection head; the air blower is arranged on the shell and communicated with the air spraying head through the air spraying pipe, and the air spraying head is arranged on the air suction cover in a penetrating mode and can spray air into the air suction cover. The air blower is controlled by the light touch switch, and the driving mechanism is arranged on the shell and can intermittently extrude the light touch switch of the air blower. According to the dust cleaning device, through intermittent air injection and air suction hoods, dust escape is reduced while cleaning is facilitated.

The utility model relates to the technical field of casting water cooling, in particular to a lifting type multifunctional water cooling device which comprises a cleaning station and a water soaking station, the cleaning station and the water soaking station are opposite in position, the top of the cleaning station and the top of the water soaking station are both fixedly connected with a top cover device, and a water temperature detection device and a water level detection device are fixedly connected into the water soaking station. According to the die-casting product soaking cooling device, the influence of water vapor escape and water drop splashing on the environment and equipment during soaking cooling and blowing cleaning of die-casting products can be reduced, the influence of residual water spots on the products during soaking cooling of the die-casting products is reduced, the influence on the use environment and equipment is reduced, the production efficiency of different types of die-casting products of customers is greatly improved, and the production cost is reduced. Therefore, safe, efficient, environment-friendly, energy-saving and convenient production is achieved, universal design is adopted, the die-casting product cooling device can correspond to various die-casting products of different sizes and types, and variety switching can be achieved without replacing any part in the cooling process of the different die-casting products.

This invention relates to the field of semiconductor technology, and more particularly to an atomizer, a vaporizer, semiconductor process equipment, and a method. The atomizer includes a nozzle and a carrier gas chamber. The carrier gas chamber provides a carrier gas, and the nozzle provides a sprayed liquid. The liquid outlet of the nozzle is located near and connected to the atomization outlet of the atomizer. The gas outlet of the carrier gas chamber is located near and connected to the atomization outlet, and the airflow cross-sectional area of ​​the gas outlet within the carrier gas chamber is minimized. The airflow cross-sectional area of ​​the atomization outlet is in the range of 0.000000045m². 2 ~0.0000001m 2 The vaporizer includes an atomizer, and the semiconductor process equipment includes a vaporizer; the atomizer, vaporizer, semiconductor process equipment, and method provided in the embodiments of the present invention can basically achieve curing while minimizing surface pore defects in the film layer.

The invention discloses a control method and device for internal combustion power low NOx emission, and belongs to the technical field of tail gas aftertreatment. A flow sensor, an oxidation catalysis unit OC, an ammonia ejector, a nitrogen oxide storage unit NSRU, a nitrogen oxide concentration sensor and a selective catalytic reduction unit SCR are sequentially arranged in the exhaust direction. NOx in the tail gas firstly flows through the OC unit, NO in the tail gas is oxidized into NO2 by utilizing the oxidation characteristic of the OC unit, so that the concentration of NO2 in the tail gas is increased, and the NOx with the changed concentration ratio enters the NSRU unit; if the molar ratio of NH3 to NOx in the current NSRU region is lt; if 1, NO2 is partially converted into nitrate to be stored; if the molar ratio of NH3 to NOx in the current NSRU area is gt; if 1, the nitrate stored in the NSRU can be converted into NO2 to be released. Therefore, under the condition that the ammonia injection amount of the NSRU is constant, if the NOx of the incoming flow fluctuates in different heights, the NSRU adsorbs the NOx fluctuating in the forward direction and releases the NOx fluctuating in the negative direction, the stability of the flow of the NOx entering the SCR unit is improved, and efficient conversion of the NOx is achieved.

The invention discloses intelligent sofa hardware surface intelligent polishing equipment, and relates to the technical field of physical polishing, the intelligent sofa hardware surface intelligent polishing equipment comprises a trepanning main ring seat, the trepanning main ring seat is internally provided with a set of shelving grooves, extending grooves and first inner open grooves, and the top of the trepanning main ring seat is fixedly provided with an external supporting plate; the top of the external supporting plate is provided with a self-turning processing mechanism, the bottom of the trepanning main ring seat is provided with a butt joint adsorption mechanism, the outer wall of the trepanning main ring seat is provided with a linkage mechanism, the self-turning processing mechanism comprises a slotting special-shaped frame, a main arm is movably arranged in the slotting special-shaped frame, and the outer wall of the slotting special-shaped frame is provided with a clamping mechanism. A rectangular supporting plate is fixedly installed at one end of the main arm, a first driving assembly is fixedly installed at the top of the rectangular supporting plate, the mechanical transmission principle and the structural layout reasonability are adopted for the mechanism, the treatment number of structural parts can be expanded to the maximum extent, the equipment machining efficiency is effectively improved, and the structural parts are turned over circularly; and it can be guaranteed that all the positions of the outer wall of the structural part can be polished to the same degree.

The utility model relates to the technical field of fluorine chemical industry, provides a storing and conveying device for fluorine-containing chemicals, and solves the problem of environmental pollution caused by design defects of existing equipment. The device comprises a storage tank; the storage tank is arranged on the fixed seat, a plurality of annular flow guide grooves are formed in the fixed seat, flow guide channels are formed in the bottoms of the annular flow guide grooves, annular flow guide cover plates are arranged in the annular flow guide grooves in a sliding mode, and flexible scraping strips are arranged on the tops of the flow guide cover plates; the fixed seat is arranged on the fixed plate, the fixed plate is provided with liquid collecting ports communicated with the flow guide channels, and the bottom of the fixed plate is provided with a liquid collecting box communicated with the liquid collecting ports; and the escape amount of the fluorine-containing wastewater is reduced through dynamic matching of the annular flow guide groove and the sliding flow guide cover plate.

The invention provides an SNCR device and method, and belongs to the technical field of waste gas treatment.The SNCR device comprises an ammonia gas detector, a nitrogen oxide concentration analyzer and an ammonia water vaporizer, the ammonia water vaporizer comprises a straight pipe section, a top inlet is formed in the top of the straight pipe section, the top inlet is connected with an ammonia water liquid inlet device, and a middle inlet is formed in the middle of the straight pipe section; the middle inlet is connected with a steam inlet device, the bottom of the straight pipe section is provided with a necking section, the bottom of the necking section is provided with a throat part, the bottom of the throat part is provided with a flaring section, the bottom of the flaring section is provided with a bottom outlet, and the bottom outlet is connected with a steam outlet device; according to the invention, the concentration of nitrogen oxide and the concentration of ammonia escape can be adjusted in real time, steam and ammonia water are fully atomized and gasified, and then are rotationally sprayed into flue gas, so that the denitration efficiency is greatly improved, the denitration ammonia consumption and the ammonia escape are reduced, and the denitration reaction temperature interval can be reduced to 750-1100 DEG C.

The utility model discloses a kind of combustion device and combustion system, comprising: hearth, hearth provides space for material combustion;Primary air chamber, primary air chamber is used to form primary air;Air distribution plate, hearth is communicated with primary air chamber by air distribution plate;Ammonia gas pipeline, ammonia gas pipeline is located in hearth and close to air distribution plate;Ammonia gas air cap, ammonia gas air cap is used to communicate ammonia gas pipeline and hearth, and the gas in the hearth is guided, the surface of ammonia gas air cap has ammonia cracking catalyst layer, ammonia cracking catalyst layer can at least part of ammonia gas that passes through ammonia gas air cap is cracked into nitrogen and hydrogen. Since the minimum ignition energy of hydrogen is lower than that of ammonia and the combustion temperature is high, hydrogen is more easily combusted than ammonia, which can improve the combustion characteristics in the hearth and enhance the effect of ammonia combustion, thereby reducing ammonia escape, while allowing more ammonia to react with nitrogen oxides, achieving the purpose of inhibiting the formation of nitrogen oxides.

The coke breeze cyclone separator comprises a first cylinder, a volute body, a first conical cylinder and an exhaust pipeline, gas containing coke breeze enters the volute body from a gas inlet, flows along the inner wall of the volute body and is guided to form a rotating vortex, and spirally flows downwards towards the conical cylinder along the first cylinder; the coke breeze is thrown to the inner wall of the first cylinder under the action of centrifugal force, the coke breeze loses inertia force and falls into the dust collecting hopper along the wall face, treated gas continuously flows into the center in the descending process in the conical cylinder to form centripetal radial airflow, the central airflow spirally ascends and enters the exhaust pipeline, and spiral blades are arranged on the inner wall of the exhaust pipeline in the exhaust direction. The spiral direction of the spiral blades is opposite to the spiral direction of gas, the spiral blades and spiral airflow generate shearing force, the stability of the airflow is destroyed, the airflow forms rising micro-turbulent flow between the blades, coke breeze collides with the inner wall of the exhaust pipeline and the blades, secondary separation in the exhaust pipeline is achieved, and the powder discharging efficiency of the coke breeze cyclone separator is improved.