70 results about "Granular matter" patented technology

The utility model relates to a dust collection structure of a cut-to-size saw, and belongs to the field of cut-to-size saws. The cut-to-size saw comprises a workbench, a guiding rule and a pressing beam which are arranged on the cut-to-size saw, the workbench is provided with a saw seam and a plurality of air outlets, the guiding rule is provided with a first dust suction port, the pressing beam is provided with a second dust suction port, part of the air outlets are provided with pneumatic floating beads, and the rest of the air outlets are provided with air outlet assemblies. The air outlet direction of the air outlet assembly faces the first dust suction opening. According to the scheme provided by the utility model, part of the air outlets are arranged as the air outlet components, so that wood dust accumulated on the workbench can be quickly and effectively removed, the dust removal efficiency of the cut-to-size saw is improved, and the damage of particulate matters to the surface of a plate can be prevented.

The application discloses a pre-evacuation chamber with wafer cleaning function and a wafer cleaning method, and belongs to the technical field of semiconductors, and solves the problems of low yield and process conversion alignment error caused by the existence of particulate matter on the back surface of a wafer in the prior art. The pre-evacuation chamber comprises a chamber, a nozzle, a support and a vacuum chuck. The support is arranged at the center of the chamber, the vacuum chuck is fixed at the top end of the support, and the nozzle is arranged in the radial direction of a circle with the vacuum chuck as the center. The vacuum chuck is used for fixing and rotating the wafer, and the nozzle is arranged below the wafer. The application is suitable for cleaning the back surface of the wafer.

The utility model provides a sand blasting device for imitating a sand beach in a water park, which can effectively filter large-particle substances in mortar and periodically scrape and clean a filter piece through a scraper blade to ensure the filtering effect of the filter piece, and comprises a containing cavity and at least one first discharge hole, the filtering piece is arranged at the end, located in the containing cavity, of the first discharging opening and used for filtering large-particle matter in mortar; and the scraping plate is matched with the filtering piece and is used for scraping the surface of the filtering piece.

According to the cleaning and separating device for the magnetic metal particles, through cooperation of the overturning motor, the beaker containing barrel, the rotating motor, the water adding faucet, the flushing faucet, the peristaltic pump, the water tank, the electromagnetic valve and the controller, a beaker is placed in the beaker containing barrel to be clamped and fixed, the device is started, and the magnetic metal particles are separated from the beaker containing barrel. The water adding faucet at the top adds quantitative degaussing water into the beaker, meanwhile, the magnet at the bottom is driven by the rotating motor to work for preset time, adsorption of the magnet and magnetic particles in the beaker, rotation stopping of the magnet at the bottom and water pouring by overturning the beaker by about 95 degrees are achieved, and the actions of water adding, magnet rotating, beaker overturning and beaker aligning are cyclically conducted. After the water pouring action is completed, the transverse flushing faucet is started to move rightwards to extend into the beaker for flushing, and after transverse flushing is completed, the beaker is aligned, the beaker is taken out, and the magnetic particulate matter is taken out. The device is simple in structure, convenient to operate, high in treatment efficiency, good in magnetic particle cleaning and separating effect and beneficial to application and popularization.

The application belongs to the technical field of fertilizers, and provides a fertilizer based on SOD cultivation and a preparation method thereof.The preparation method comprises the following steps: S1, according to the weight fraction, 41-45 parts of urea, 26-28 parts of potassium chloride, 22-24 parts of calcium superphosphate, 5-7 parts of bacillus subtilis spore powder, 30-32 parts of rice husk charcoal, 3-5 parts of ammonium sulfate modified magnesium-aluminum hydrotalcite and 8-10 parts of calcium chloride modified attapulgite are put into a coating machine for stirring to obtain a mixture; S2, 5-7 parts of 4wt% polyvinyl alcohol aqueous solution and 3-4 parts of distilled water are added to the mixture obtained in S1 to accelerate the granulation of the material, and granular material is obtained; and S3, the granular material obtained in S2 is subjected to drying treatment, and the fertilizer based on SOD cultivation is obtained.The application can effectively reduce the nitrogen release speed of the prepared carbon-based microbial fertilizer.

The utility model relates to the technical field of reboilers, and discloses a rectifying tower reboiler which comprises a reboiler body, a feeding pipe is fixedly connected to the top of the reboiler body, a discharging pipe is fixedly connected to the bottom of the reboiler body, a steam inlet pipe is fixedly connected to the side wall of the reboiler body, a heat insulation box is arranged on the side wall of the reboiler body, and a steam outlet pipe is fixedly connected to the bottom of the reboiler body. A water outlet pipe is fixedly connected to the side wall of the reboiler body, a filtering mechanism is arranged in the steam inlet pipe, a switching mechanism is arranged at one end of the water outlet pipe, the filtering mechanism comprises a filtering ring, and a sliding block is fixedly connected to the side wall of the filtering ring. According to the utility model, particulate matters in steam are blocked by the filter ring to prevent the influence on the distillation effect, the filter ring can be detached to clean impurities after the work is finished, the filter ring is locked by the clamping block to complete fixation when the filter ring is reinstalled, and the particulate matters in the steam are effectively blocked and prevented from entering the reboiler body through the matching of the structures, so that the reboiler is convenient to use. The distillation effect and the product quality are ensured.

The utility model provides a kind of canning line foreign matter detection tank turning mechanism, it is related to canning production line technical field, including workbench one and workbench two, workbench two is equipped with mounting pedestal, a pair of installation side frames is installed on mounting pedestal, installation top plate is installed on the pair of installation side frames, link is movably installed in the bottom of installation top plate, the bottom of link is equipped with several knock balls, collection groove is equipped with suction air inlet in the bottom end in the pair of installation side frames between on mounting pedestal, workbench one and workbench two are all equipped with a pair of side plates, conveyor is installed between the pair of side plates, workbench one is installed with turnover machine in the one end of mounting pedestal, the bottom end of turnover machine is connected with the pair of installation side frames.This device is knocked to the top of the tank body by knock ball, is favorable to the granular matter inside tank body drop, is convenient for tank body foreign matter removal, improves tank body production efficiency and quality.

1. Name of the designed product: Double layer dust valve (reducer form). 2. Use of the designed product: For controlling and discharging dust or particulate matter storage and unloading. 3. Design points of the designed product: In shape. 4. Picture or photo that best shows the design points: Fig. 1.

The utility model discloses a kind of stirring devices for crosslinking agent production, including stirring barrel, the upper end of the stirring barrel is provided with cover, the lower end of the cover is provided with the stirring mechanism for stirring material, the stirring mechanism includes rotating link in the lower end of cover, the inside of the rotating link is provided with cavity.The utility model structure is reasonable, when crosslinking agent particle is just mixed with solution, adjust mechanism is adjusted into horizontal state by stirring paddle, stirring paddle at this time, in rotating process, the edge blade of its upper and lower two sides can effectively crush larger granular matter, improve the dispersivity of material, lay good foundation for subsequent mixing process, after granular matter is crushed, adjust mechanism is adjusted into vertical state by stirring paddle at this time, the rotation of stirring paddle, can expand stirring range, make material fully flow in stirring barrel, realize rapid mixing, improve mixing uniformity and production efficiency.

The application discloses a chemical reaction kettle with material anti-adhesion function, and relates to the technical field of chemical reaction, which comprises a kettle body, blast hoods are fixed on both sides of the top of the kettle body, a top frame is fixed on the top of the blast hood, and a piston cylinder is fixed between the blast hood and the top frame; a distribution assembly for gas-liquid distribution in the reaction kettle is arranged on the piston cylinder, and a cyclone assembly for dynamic rotation of the distribution assembly is arranged in the top frame; a cleaning assembly matched with the distribution assembly and the cyclone assembly is arranged on the inner wall of the kettle body, and the cleaning assembly comprises a hollow framework sliding on the inner wall of the kettle body. Through the distribution assembly and the cyclone assembly, the dual means of pressure boosting work and dynamic cyclone are utilized, the self-adaptive and uniform feeding operation of gaseous and liquid materials is suitable, the granular substances easily adhered in the materials are uniformly stressed from the feeding source, the granular materials are forced to concentrate in the kettle and mix, the adhesion amount of the kettle wall is reduced, and the material adhesion problem is solved from the root.

This utility model discloses a concentric ring composite structure heated cigarette, belonging to the field of heated cigarette technology. It includes a smoke-generating carrier, which is configured as a hollow tobacco segment. One end of the hollow tobacco segment has a concentric ring structure, and the other end has a guide member. An insertion cavity is axially provided in the center of the guide member. A concentric ring structure has a concentric rod axially provided in the center of the concentric ring structure. A first covering layer is provided on the outside of the concentric ring rod, and a filter material is annularly covered on the outside of the first covering layer. A second covering layer is then provided on the outside of the filter material. This utility model increases the central suction resistance of the cigarette by adding a concentric ring structure to the cigarette structure, improving the interception of large aerosol particles in the smoke. Simultaneously, it allows for thorough mixing of the smoke, resulting in a finer and smoother smoke. The filter end can be fully utilized, and during inhalation, it accelerates the heat transfer rate between the heat source and the smoke-generating carrier.

The utility model provides a breaker rotating shaft buffer force unloading structure, comprising a rotating shaft, a stop block, an elastic member and a gas blocking cover, the stop block is movably installed on the rotating shaft and is used for abutting against a cooperation block on an installation segment; the elastic piece is arranged between the stop block and the rotating shaft and located on the side, away from the matching block, of the stop block. During breaking, the matching block of the moving contact impacts the stop block and then extrudes the elastic piece, so that the impact force of the moving contact is buffered, and the service life of the rotating shaft is prolonged; besides, on one hand, the gas blocking cover can prevent electric arc from climbing backwards along the moving contact and prevent the contact from being burnt out, and on the other hand, particulate matter and high-temperature gas can be prevented from damaging the blocking block and a conductive system, so that the reliability of the circuit breaker section test is guaranteed.

Provided is animal litter, wherein granular matters can adequately absorb urine, and wherein the granular matters can form small clumps having high strength at an early stage. Animal litter includes granular matters mainly composed of bentonite. The granular matters include 80% by mass or more of the granular matters having a grain size of 0.5 mm or more and 1.5 or less. Clump strength of a clump of the granular matters after 1 minute has elapsed since addition of 20 ml of a 0.9% by mass saline solution to the animal litter is 8.0 N or more.

The invention discloses a weight detection method and device for irregular particulate matters, a storage medium and equipment, relates to the technical field of detection, and mainly aims to solve the problem of poor weight detection accuracy of existing irregular particulate matters. Comprising the following steps: when an irregular particulate matter to be detected is placed on the end surface of a detection end of a sensor, transmitting a laser signal to the detection end of the sensor through an optical fiber, and obtaining a reflected light signal of the laser signal reflected from the back surface of the detection end of the sensor; determining trough displacement information based on the reflected light signal, and determining pressure information corresponding to the trough displacement information based on a trough displacement pressure mapping relation; and calculating the weight of the irregular particulate matter based on the pressure information.

The utility model discloses fine filtration equipment for lubricating oil production, which comprises a filter cartridge, a sealing cover is arranged at the top of the filter cartridge, and an oil outlet pipe communicated with the inside of the filter cartridge is arranged in the middle of the sealing cover; the filter cartridge comprises a lower cyclone separation area and an upper fine filtration area; the cyclone separation area is communicated with an oil inlet pipe, the oil inlet direction of the oil inlet pipe is tangent to the side wall of the fine filter cylinder, and the bottom of the cyclone separation area is provided with a conical hopper communicated with the slag discharge port; the fine filtration area is provided with a fine filtration assembly for performing fine filtration on the separated lubricating oil again, and the fine filtration assembly is mounted on the top end surface of the inner side of the sealing cover; according to the utility model, firstly, particulate matters with larger density in the lubricating oil are removed in the cyclone separation area, the lubricating oil subjected to preliminary separation flows upwards and is further filtered by the fine filtration assembly to obtain the lubricating oil with better quality, impurities in the lubricating oil are quickly and effectively removed, and the oil quality of the lubricating oil is improved.

The utility model discloses a kind of mixing shear devices of powder and granular matter, including square block, the upside of the square block is fixedly connected with stirring block, the front side of the square block is equipped with square groove, the upside of the stirring block is equipped with feed hole, the outside of the stirring block is provided with crushing structure, the outside of the square block is provided with rotating structure, the downside of the stirring block is equipped with circular ring groove, the inside of the circular ring groove is provided with material collecting ring, the rotating structure includes sliding slot, the sliding slot is equipped in the inside of square groove left and right sides. Compared with prior art, the setting of square block, square groove, stirring block, crushing structure, rotating structure, circular ring groove, material collecting ring, cylindrical plate, when carrying out easily adherent powder particle mixing, device can be adherent powder stirring completely crushed, and make it fully fusion, save staff's re-smashing material workload.

The electrolytic cathode particle removing device comprises a guide frame arranged on the side face of a cathode plate, a chiseling cross beam and a driving cross beam which are parallel are arranged in the guide frame along a guide rod, a spring is arranged between the chiseling cross beam and the driving cross beam, and a chisel is fixedly arranged on the side face, corresponding to the cathode plate, of the chiseling cross beam. A chiseling generator is fixedly arranged at the upper part of the chiseling cross beam; the driving cross beam is driven by a driving device to move up and down along the guide rod; the chiseling cross beam and the chisel are driven by the driving cross beam to move up and down along the guide rod; according to the device, the support and the support vertical plate are adopted to position the cathode plate, the guide frame is driven by the frame driver to enable the chisel beam and the chisel to be close to a particle formation area, the chisel generator acts to achieve high-frequency impact particle formation removal, and the cooperative particle formation removal system process of positioning, swinging, impacting and resetting is formed. And the granular matters on the negative plate can be removed more thoroughly, and the removal efficiency of the granular matters on the surface of the negative plate is improved.

This invention discloses an in-situ loading testing device and method for particulate matter based on industrial CT scanning, relating to the field of thermomechanics. The device includes a drive assembly, a sensor unit, a fixture assembly, a carbon fiber support cylinder, a heat insulation cylinder, a heating module, a gas filling and discharging system, and a sensor cooling and protection unit. The fixture assembly is surrounded by a heat insulation cylinder to form a sealed space, ensuring the sample can be tested in a specific gas atmosphere. Heating is achieved by heating the sample with a heating plate and introducing gas to uniformly heat it. A quick-connect water nozzle is connected to the top of the device, allowing connection to a water chiller for water cooling of the fixture assembly. The loading base is connected to the CT turntable using screw locking. This invention can fully simulate the thermomechanical changes of a particle bed under different thermal stresses and gas atmospheres. While heating and loading the sample, industrial CT scanning can be used to scan the loading process and internal microstructural changes of the sample in situ.

The invention discloses a method for extracting calcareous microfossils of consolidated sediments, which comprises the following steps: S1, taking a rock core sample or a rock debris sample of the consolidated sediments, cleaning the surface of the rock core sample or the rock debris sample, and crushing the rock core sample or the rock debris sample to obtain a debris sample; s2, weighing a chipping sample, soaking the chipping sample in water, heating the chipping sample, and then freezing the chipping sample to obtain a frozen sample; s3, hydrogen peroxide is added into the frozen sample and mixed, then sieving and cleaning are conducted, and first particles are obtained; adding a weakly alkaline reagent and heating to obtain a first mixture; s4, adding an anti-flocculating agent into the first mixture, mixing, and carrying out ultrasonic treatment to obtain a second mixture; and then sieving, cleaning, drying and collecting a particle sample. According to the method, more calcareous microfossils are physically separated out, chips adhering to the surfaces of the calcareous microfossils fall off, chemical decomposition of the fossils and adhering particles is promoted, meanwhile, preservation of fossil shells is facilitated, and fine particles are prevented from being flocculated and precipitated.

This invention discloses an atmospheric environment assessment device based on carbon neutrality monitoring. The device includes a cabinet deployed in an industrial park to monitor the atmospheric environment. Inside the cabinet is a pretreatment module that separates large particulate matter from the atmosphere and dries and controls the temperature of the air. A multi-channel air inlet is located at the upper back of the cabinet, connected to the air inlet of the pretreatment module, allowing for the introduction of atmospheric samples from different locations within the industrial park. Inside the cabinet is a detection, calculation, and control module that receives the clean sample gas output from the pretreatment module and performs gas concentration monitoring and environmental data assessment. The pretreatment module contains a centrifuge, a dehydration and drying combination pipe, a filter, and a distributor, all connected in sequence. The pretreatment module achieves integrated dust removal, dehydration, and temperature control of the atmospheric sample gas, improving its purity and ensuring the accuracy of subsequent gas monitoring data.

A method of making a cushioning member is provided. The method includes forming a first barrier member from a first material, the first barrier member including a first compartment and a second compartment. The method further includes forming a second barrier member from a second material different than the first material. The first compartment is provided with a first quantity of particulate matter and the second compartment is provided with a second quantity of particulate matter. The method further includes covering the first compartment with the second barrier member and covering the second compartment with the second barrier member.

A device for measuring at least one variable property of a granular material features a transverse electromagnetic (TEM) cell whose interior uniquely includes non-conductive chamber walls that delimit a measurement chamber at a non-tapered mid-region of the TEM cell housing between the two tapered end regions thereof. A center conductor of the TEM cell bisects the measurement chamber, into and from which a granular substance is flowable via inlet and outlet openings of communicative relationship to the measurement chamber. Excitation of the TEM cell generates an electromagnetic wave that is propagated through said granular material flowing through the measurement chamber. Output signal measurements from the TEM cell are used to calculate measurement of at least one variable property of the granular material.

The invention discloses a negative pressure isolated storage and split charging device and a control method thereof, the device comprises a reaction unit, a storage unit, a material mixing unit, a gas path unit, a liquid path unit and a detection control unit, and the gas path unit comprises an exhaust filter assembly, a vacuum filter assembly and a fresh air assembly; the control method for the device comprises the steps that the detection control unit can detect the granularity change of the cavity of the negative pressure isolation storage subpackaging device; and when the granularity rise is larger than a granularity change rate threshold value, the detection control unit controls the exhaust fan power of an exhaust filter assembly of the gas path unit, meanwhile, a fresh air valve of a fresh air assembly is closed, a vacuum valve of a vacuum filter assembly is opened, and particulate matter in the environment in the cavity of the device is rapidly reduced. The device is applied to working conditions with heating operation requirements or with volatile raw materials, the operation risk can be effectively reduced, and meanwhile, the safety of raw materials stored in an isolation system and the cleanliness of an operation space can be guaranteed.

The utility model relates to the technical field of adsorption devices, and discloses an adsorption device for volatile organic waste gas purification, which comprises a mounting base, a gas inlet and a purification mechanism, the top of the mounting base is fixedly connected with a mounting outer frame for mounting, and the top of the mounting base is provided with the purification mechanism for purification. An air inlet is fixedly connected to the mounting outer frame, a front filter plate body is arranged in the first sliding frame, a dust filter plate body is arranged in the first sliding frame, an activated carbon filter plate is arranged in the front filter plate body, and a sliding plate is fixedly connected to the bottom of the first fixing box. After waste gas is dehumidified through the condenser body, the waste gas is filtered through the front filter plate body, the dust filter plate body and the activated carbon filter plate and then discharged, moisture obtained after dehumidification is fully filtered, particulate matter in the moisture is intercepted and removed step by step, and the cleanliness of the moisture is greatly improved; the influence on the environment caused by discharge of particulate matters along with condensate water is avoided.

A structure for delivering a flow of gas across a window or aperture of an imaging or measurement device within an apparatus for the manufacture of three-dimensional objects by layer-by-layer consolidation of particulate matter, the structure comprising: a hollow body having an upper aperture for mounting in correspondence with the window / aperture of said device, a gas flow intake region below the upper aperture, and a lower aperture; wherein the gas flow intake region is provided on opposing sides of the hollow body when viewed in cross-section along a longitudinal axis that runs from the upper aperture to the lower aperture, and comprises one or more channels configured to allow, in use, a flow of intake gas to enter the hollow body from the opposing sides of the hollow body with a flow component that predominantly lies in a plane parallel to the plane of the upper aperture, and to come into confluence within the hollow body; and wherein the hollow body is symmetrically shaped about the longitudinal axis so as to redirect the confluent flow of intake gas to form a substantially axial flow of gas along the longitudinal axis, and a backflow of gas near the internal wall of the hollow body, wherein the upper aperture is substantially shielded from the backflow by the intake flow, and wherein the velocity of the backflow is relatively low in comparison to the velocity of the intake flow. Also provided is an apparatus for the manufacture of three-dimensional objects by layer-by-layer consolidation of particulate matter, incorporating such a structure, and a method of delivering a flow of gas using such a structure.

The application discloses a coal economizer for a high-temperature and high-pressure dry quenching waste heat boiler and relates to the technical field of boiler coal economizers.The coal economizer comprises a frame shell, a plurality of water pipes are arranged through and fixed to the inner wall of the frame shell, heat distribution fins are arranged on the outer wall of the water pipes respectively, a first round pipe is arranged on the top of the front face of the water pipe, a second round pipe is arranged on the end of the water pipe away from the first round pipe, a shell is arranged below the frame shell, a sliding groove is formed in the left and right sides of the shell, a filter screen is fixed to the bottom of the inner wall of the shell, concave shells are fixed to the left and right sides of the shell respectively, and a servo motor is arranged on the front face of each concave shell.The granular substances accumulated in the filter screen are scraped by the comb teeth plate, so that the problem that the granular substances are attached to the filter screen of the coal economizer and the smoke passing effect of the filter screen of the coal economizer is poor is avoided.

A method for uniformly distributing particulate matter in a fiber reinforcement of a CMC material, comprising: providing at least one preform of at least one fiber reinforcement; infiltrating the preform with at least one slurry containing at least one particulate material and at least one solvent to form at least one slurry infiltrated preform comprising the particulate material; freezing the slurry infiltrated preform containing the particulate material to form at least one frozen slurry infiltrated preform containing the particulate material; sublimating the frozen slurry infiltrated preform including the particulate material to form at least one structural support comprising the particulate material uniformly distributed thereupon within at least one sublimated slurry infiltrated preform; and melt-infiltrating with at least one metal, at least one metalloid, at least one metal alloy, or at least one metalloid alloy, the sublimated slurry infiltrated preform containing the structural support to form a melt-infiltrated CMC material.

The invention relates to the technical field of concentration detection, and provides an iron and steel plant sintering flue gas particulate matter concentration detection device and method, and the device comprises a different particle size section concentration acquisition module, a sintering process optimization module, a dust removal optimization module and a detection data visualization module. According to the method, mass concentration data of particulate matters of different particle size sections such as ultrafine particles, fine particles, medium particles and coarse particles can be obtained, so that abnormal sources of the sintering process are accurately positioned based on the characteristics of the particle size sections, and a targeted sintering process regulation and control strategy and a dust remover adjustment strategy are generated. Meanwhile, the detection data visualization module integrates real-time data, the current sintering process state grade, main abnormal sources, a sintering process regulation and control strategy, an adjustment strategy of the dust remover and the like and displays the data in a graphical interface, experience dependence of operators is greatly reduced, and visual operation guidance is provided.

The utility model relates to powder spraying gun technical field, and disclose a powder spraying gun with prevent blocking structure, including powder spraying gun body, the inside of powder spraying gun body is provided with coating groove, the outside fixed mounting of powder spraying gun body has the mounting bracket, the inside rotatory mounting of mounting bracket has the pivot, the one end fixed mounting of pivot away from mounting bracket has the mounting disc, the inside fixed mounting of mounting disc has four spraying heads, the inside fixed mounting of spraying head has two magnetic blocks, through the rotation mounting disc another spraying head is located and the butt joint position of powder spraying gun body, rotates the threaded bushing until sealing washer is pressed in the baffle ring outside, thereby completes the quick replacement of blocked spraying head, avoids that the granular material possibly mixes in coating, blocks spraying head to influence spraying thereby, needs to disassemble the spray gun and carries out the cleaning maintenance, more complicated time -consuming, the prior art is more complicated time -consuming when disassembling spraying head, thereby delays the problem of spraying efficiency.

The utility model relates to the related technical field of environmental protection equipment, in particular to an absorbent spraying nozzle for desulfurization and denitrification, which comprises a spraying component, a spraying part and a spraying part, the spraying part comprises a pipe orifice and a supporting seat, and the pipe orifice is connected to the middle of the bottom end of the supporting seat; the spray head is connected to the top of the supporting seat; the nozzle is connected to the middle of the top of the sprayer. The filtering part comprises a supporting ring connected to the inner surface of the pipe opening; the rotating rod is mounted in the middle of the supporting ring; the limiting ring is connected to the outer surface of the rotating rod; and the filter screen is detachably connected between the supporting ring and the limiting ring. In the utility model, when the existing spraying nozzle is actually used, impurities in industrial waste gas, particulate matters in an absorbent and sediments possibly generated in the reaction process are easily accumulated in the nozzle, for example, when a spraying hole of the nozzle is blocked, the spraying quantity and the spraying state of the absorbent can be changed, the spraying uniformity is deteriorated, and the spraying effect is influenced. And the desulfurization and denitrification effect decline is aggravated.