81 results about "Sonic soot blowers" patented technology

The invention provides an intelligent sound wave soot blower control system based on a DCS, and the system comprises a sensor module which is used for collecting equipment operation parameters; the field control station is used for carrying out primary processing and caching on the equipment operation parameters acquired by the sensor; the data acquisition module is used for integrating and formatting the data; the distributed control module is used for establishing an optimal soot blowing simulation model and a dynamic adjustment model based on the physical characteristics of the equipment operation parameters, and is used for calculating ideal soot blowing information and a dynamic adjustment result determined based on the ideal soot blowing information; controlling the soot blowing action of the sound wave soot blower according to the dynamic adjustment result; the central monitoring station is used for feeding back the difference between the effects before and after soot blowing and optimizing and adjusting the dynamic adjustment model based on the difference; the invention aims at solving the problems of heat exchange efficiency reduction and resistance increase caused by ash deposition of the low-low-temperature economizer, improving the overall operation performance of the low-low-temperature economizer, prolonging the service life of equipment and achieving the purposes of energy conservation and environmental protection.

The invention discloses an anti-blocking method for an air preheater. The anti-blocking method comprises the steps that S100, the front-back pressure difference of the smoke side of the air preheater is obtained; s200, when the pressure difference is larger than a first preset value and lasts for at least a first preset duration, the unit is controlled to conduct soot blowing through a low-frequency high-sound-intensity sound wave soot blower; after the unit blows soot through the low-frequency high-sound-intensity sound wave soot blower for a first preset number of times, the pressure difference is detected, if the pressure difference is larger than a second preset value and lasts for at least a second preset duration, it is determined that blockages mainly containing ammonium bisulfate appear in the air preheater, pyrolysis operation is executed, and the second preset value is larger than the first preset value. The frequency of pyrolyzing ammonium bisulfate can be reduced, the service life of each part of the unit is prolonged, the operation stability of the unit is improved, and maintenance suggestions are provided for frequently accumulated ammonium bisulfate.

The invention provides an intelligent dust remover control system and method.The system comprises a pressure difference sensor, a pulse soot blowing module, a sound wave soot blowing module, a flow sensor and a PLC, and the pressure difference sensor is used for monitoring the pressure difference value between the clean face and the dirty face of a filter cartridge or a filter bag; the pulse soot blowing module comprises a pneumatic proportional valve used for adjusting the injection pressure and a pulse electromagnetic valve used for adjusting the injection pulse width and the pulse injection period. The sound wave soot blowing module comprises a sound wave soot blower; and the controller is in signal connection with the differential pressure sensor, the pulse soot blowing module and the sound wave soot blowing module. The system has the advantages that the pulse soot blowing module and the sound wave soot blowing module can be automatically and effectively controlled and reasonably utilized, the start and stop of the corresponding modules are timely controlled, the working parameters are regulated and controlled, the dust remover is ensured to work in a more reasonable, effective and economical manner, the dust remover can be ensured to keep a good working state in a longer time period, and the working efficiency is improved. The energy consumption is reduced, the labor cost of maintenance regulation and control is reduced, and possible errors caused by manual regulation and control are avoided.

The invention relates to the technical field of flue gas treatment, in particular to an SCR denitration system and method for flue gas of an oil-gas co-combustion boiler. The system comprises a boiler flue, and further comprises a denitration reactor and an ammonia-air mixing device, and a flue gas inlet of the denitration reactor is communicated with a flue gas outlet of the boiler flue; at least one catalyst bed layer is mounted in the denitration reactor, and a steam soot blower assembly and a sound wave soot blower assembly are arranged in the air inlet direction of each catalyst bed layer; the ammonia-air mixing device comprises an ammonia-air mixer, and an air outlet of the ammonia-air mixer is communicated with the boiler flue. The system can perform effective soot blowing on a catalyst bed layer, and prevents viscous substances carried in flue gas of an oil-gas co-combustion boiler from being attached to the surface of a catalyst to affect the activity of the catalyst; the ammonia-air mixing device is communicated with the boiler flue, so that flue gas can be mixed with ammonia gas and air before entering the reactor, and the denitration efficiency is improved.

The invention discloses a thermal power plant flue gas cooler sound wave soot blower, and belongs to the technical field of sound wave soot blowers, the thermal power plant flue gas cooler sound wave soot blower comprises a circulating water pool, a water inlet pipe is arranged on one side of the circulating water pool, a cooler box body is arranged at the upper end of the circulating water pool, and a fin heat exchanger is arranged in the cooler box body; an air inlet pipe is arranged at one end of the cooler box body, an air outlet pipe is arranged at the other end of the cooler box body, a fan mounting plate is arranged at the upper end of the cooler box body, and positioning mounting assemblies are arranged on the surfaces of the two sides of the cooler box body; the sound wave soot blower is arranged on one side of the flue gas cooler box body, accumulated soot existing in a soot blowing channel and an inlet of the flue gas cooler can be cleaned, the situation that the differential pressure of the flue gas cooler is too large during equipment operation is prevented, the heat exchange efficiency is improved, the flue gas flowing resistance is reduced, and the power consumption of a fan is reduced; and the positioning and mounting assembly is arranged, so that the sound wave soot blower can be conveniently and stably positioned and mounted, and the mounting cost is reduced.

The invention relates to the technical field of dust removal devices, and discloses a desulfurization, denitrification and dust removal device which comprises a desulfurization, denitrification and dust removal integrated tower, a mounting plate is fixedly mounted at a smoke inlet of the desulfurization, denitrification and dust removal integrated tower, and smoke high-temperature steam inlet pipes are integrally arranged on the mounting plate at equal intervals in a communicating mode. Sound wave mounting chambers are integrally communicated with one side of the desulfurization, denitrification and dust removal integrated tower at equal intervals, a dust removal assembly is arranged in the desulfurization, denitrification and dust removal integrated tower, and the dust removal assembly comprises a steam pipe, a steam spraying cover, a sound wave soot blower and a ceramic fiber filter pipe assembly. By arranging the sound wave soot blower, compressed air energy is converted into sound wave energy through the sound wave generator, the sound wave energy is transmitted to a soot deposition area attached to the ceramic fiber filter pipe assembly through the sound wave guide pipe, and soot deposition particles generate reciprocating vibration through the sound energy so as to be separated from the upper surface of the ceramic fiber filter pipe assembly. And the purpose of removing accumulated dust is achieved.

The invention belongs to the technical field of smoke filtering, and provides a smoke filtering device with a sound wave soot blower, which comprises an outer sleeve, a sliding sleeve is slidably arranged in the outer sleeve, the outer sleeve is fixedly connected with a fixed seat, a driving assembly is connected between the fixed seat and the sliding sleeve, and the driving assembly can drive the sliding sleeve to move in the outer sleeve. And the driving assembly is elastically connected with the sliding sleeve, the sliding sleeve is fixedly connected with a plurality of filter screens, and a plurality of sound wave soot blowers are arranged on the inner wall of the sliding sleeve. According to the flue gas cooling device, water flow in the central pipe is sprayed outwards through the rotating rod on the sliding seat, so that flue gas is sprayed and cooled; in the process, the guide sleeves on one sides of all the sliding seats are used for guiding the flue gas and carrying out contact type cooling.

The present invention discloses a method for preventing blockage of an air preheater. Step S100: Obtain the differential pressure before and after the flue gas side of the air preheater; Step S200: When the differential pressure is greater than a first preset value and lasts for at least a first preset time, control the unit to perform soot blowing with a low-frequency and high-intensity acoustic soot blower. After the unit performs soot blowing with the low-frequency and high-intensity acoustic soot blower for a first preset number of times, detect the differential pressure. If the differential pressure is greater than a second preset value and lasts for at least a second preset time, it is determined that the air preheater has blockage substances mainly composed of ammonium bisulfate, and a pyrolysis operation is performed, wherein the second preset value is greater than the first preset value. The present invention can reduce the frequency of pyrolyzing ammonium bisulfate, improve the service life of each component of the unit and the stability of the unit operation, and provide maintenance suggestions for the frequent accumulation of ammonium bisulfate.

This utility model relates to the field of flue gas purification technology for industrial silicon DC and AC furnaces. To address the problems of unstable denitrification efficiency, inability to remove high-concentration NOx, catalyst poisoning, and a maximum denitrification efficiency of no more than 90% in existing technologies, this utility model provides an industrial silicon smelting flue gas purification system and production line. The system includes a first-stage waste heat boiler, a medium-high temperature SCR denitrification device, three rake soot blowers, three ultrasonic soot blowers, a second-stage waste heat boiler, a filter dust collector, and a wet desulfurization tower. The rake soot blowers remove ash from the surface of the plate catalyst bed. The industrial silicon smelting flue gas purification system and production line provided by this utility model, through the medium-high temperature SCR denitrification device and the introduction of a pre-stage waste heat boiler to regulate the flue gas temperature to the SCR temperature window, combined with the dual ash removal mechanism of rake soot blowers and ultrasonic soot blowers, prevents catalyst poisoning, blockage, and ash adhesion, thereby improving the denitrification efficiency to as high as 95%.

The utility model discloses a sound wave soot blower convenient to overhaul, and relates to the technical field of sound wave soot blowers. Comprising a positioning device, the positioning device comprises a fixing shell, the inner wall of the fixing shell is fixedly connected with an air inlet pipe through a connecting hole, the inner wall of the fixing shell is fixedly connected with a sound amplifying pipe, the outer wall of the fixing shell is slidably connected with a connecting block, and the outer wall of the connecting block is fixedly connected with a film. Through cooperation of the connecting device and the positioning device, the sound wave soot blower is easy and convenient to mount and dismount, a pressing plate, a damping rod and a compression spring cooperate, operation is stable, dust prevention is achieved, the overhaul difficulty is reduced, time is saved, the durable design is adopted, the overall service life is prolonged, and the maintenance cost is reduced; and reliable guarantee is provided for long-term use.

The present application belongs to the technical field of material drying equipment, and particularly relates to a novel spray drying device for lithium iron phosphate slurry and a drying process. In view of the problems of high energy consumption, large equipment and high operation cost caused by the use of a large amount of hot air convection drying mode in the existing spray drying process, the present application proposes the following scheme, which comprises a spray drying tank, a slurry tank, a circulating pipeline assembly, a bag dust collector, an atomizing nozzle assembly, a sonic soot blower and a coil evaporating assembly. Vacuum negative pressure operation is adopted, no external fresh air is introduced, the hot exhaust gas after drying is respectively preheated for slurry and compressed air through shunting, condensed water is recycled, and non-condensable gas is recycled after purification and pressurization. The present application completely breaks the traditional hot air spray drying technical paradigm through vacuum low-temperature contact drying, reduces the equipment volume by more than 60%, reduces the energy consumption by more than 50%, and the heat recovery rate is more than 40%, and at the same time, the water resource is recycled, which has significant economic and environmental benefits.

The utility model discloses a whistle type sound wave soot blower with a dustproof and anti-blocking structure, and relates to the technical field of mechanical engineering. Comprising a box body, the outer wall of the box body is fixedly connected with a motor, and the interior of the box body is fixedly connected with a filtering assembly and a dismounting assembly; the first spring arranged between the brush and the connecting rod plays a buffering role in the brush cleaning process, when the brush encounters large resistance or foreign matter, the first spring is compressed, the situation that the brush is stuck due to too large stress is avoided, normal operation of the cleaning mechanism is guaranteed, in addition, the scraping plate is matched with the limiting rod, and the connecting rod is matched with the clamping groove of the box body, so that the cleaning effect is improved. By rotating a second handle to drive a rotating shaft and a top plate to rotate, the top plate can jack up a sliding plate, so that the connection between the sliding plate and the box body is tighter, and the cleaning effect is better. And the operation stability of the equipment is ensured.

The utility model relates to the technical field of flue gas treatment, in particular to an SCR (Selective Catalytic Reduction) denitration system for flue gas of an oil-gas co-combustion boiler. The system comprises a boiler flue, and further comprises a denitration reactor and an ammonia-air mixing device, and a flue gas inlet of the denitration reactor is communicated with a flue gas outlet of the boiler flue; at least one catalyst bed layer is mounted in the denitration reactor, and a steam soot blower assembly and a sound wave soot blower assembly are arranged in the air inlet direction of each catalyst bed layer; the ammonia-air mixing device comprises an ammonia-air mixer, and an air outlet of the ammonia-air mixer is communicated with the boiler flue. The system can perform effective soot blowing on a catalyst bed layer, and prevents viscous substances carried in flue gas of an oil-gas co-combustion boiler from being attached to the surface of a catalyst to affect the activity of the catalyst; the ammonia-air mixing device is communicated with the boiler flue, so that flue gas can be mixed with ammonia gas and air before entering the reactor, and the denitration efficiency is improved.

The present application relates to a kind of rotary air preheater corrugated plate ash removal effect evaluation method, it is related to the field of cleaning, including the following steps, the corrugated plate on the inner blade of unused air preheater is scanned by ultrasonic probe to obtain ultrasonic image as original image and record;Air preheater is cleaned after use by high-pressure water gun, and is cleaned by adopting acoustic wave soot blower cooperation;Corrugated plate is scanned by ultrasonic probe to obtain ultrasonic image as cleaning image and record;Cleaning image is compared with original image, according to the size of the bright spot in cleaning image, number intuitive judgment ash removal effect, and calculate dust removal rate by the light and shade of bright spot, the present application has the advantages that more accurate, non-destructive evaluation method of degree of fouling cleaning can be provided, to realize the accurate judgment of the inside cleaning condition of corrugated plate.

The utility model provides a sound wave soot blower with an adjustable structure, which comprises a sound wave soot blower main body, an auxiliary fixing frame and a fixed adjusting seat, and the upper end of the internal composition of the sound wave soot blower main body is provided with the auxiliary fixing frame used for carrying out auxiliary fixing on the sound wave soot blower main body. Compared with the prior art, the sound wave soot blower has the advantages that the sound wave soot blower body and the fixed adjusting base are additionally arranged, the fixed adjusting base is installed below the sound wave soot blower, the adjusting stud is rotated to rotate on the inner side of the adjusting threaded hole, the extending length of the adjusting stud can be changed, and then the height of the upper rotating block is changed; the angle of the soot blower box body can be adjusted, the orientation of the soot blowing cylinder is changed, and therefore the soot blowing cleaning range can be widened, and the sound wave soot blower body can be fixed in an auxiliary mode by additionally arranging the sound wave soot blower body and fixing the auxiliary fixing plate to the wall and other areas.

The utility model provides an array type sound wave soot blower which comprises an array frame, a movable base, a clamping mechanism and a sound wave soot blower body, and an array frame rod used for assisting the movable base to move linearly is arranged at the left end of an internal composition of the array frame. Compared with the prior art, the sound wave soot blower has the advantages that the array frame, the movable bases, the clamping mechanism and the sound wave soot blower body are additionally arranged, the multiple sets of movable bases are installed on the left side of the array frame rod, the movable bases can be adjusted in a front-back moving mode and fixed through bolts and nuts in a matched mode, and the lower end of the clamping mechanism can be rotationally adjusted through rotation; and the adjusting stud can rotate in the adjusting stud hole, the sound wave soot blower main body is jacked to change the angle of the sound wave soot blower main body, so that the dust cleaning range can be widened, and the sound wave soot blower main body can be conveniently disassembled and assembled by additionally arranging the clamping mechanism, the sound wave soot blower main body and the clamping stud.

The utility model discloses a selective catalytic reduction (SCR) denitration process system which comprises a cement kiln body, an SP boiler and a high-temperature electric dust remover are arranged on one side of the cement kiln body, an ammonia water metering and injection system is arranged on the upper side of the high-temperature electric dust remover, and the high-temperature electric dust remover is connected with an SCR denitration reactor through a flue. Catalyst layers are detachably installed in the SCR denitration reactor from top to bottom, each catalyst layer is correspondingly provided with a rake type soot blower and a sound wave soot blower, the rake type soot blowers and the sound wave soot blowers are located on the opposite sides of the catalyst layers respectively, and a heat exchanger is arranged on the bottom side in the SCR denitration reactor. The sound wave soot blower is connected with an exhaust pipe of a compressed air system, the exhaust pipe of the compressed air system is further connected with a cold side inlet of the heat exchanger, a hot side outlet of the heat exchanger is connected with an air inlet of the rake type soot blower, and the ammonia water metering and spraying system is connected with an ammonia water conveying system. The catalyst service life is prolonged.

The invention relates to the field of boilers, and discloses a soot blowing method and system for a boiler smoke well. The soot blowing method comprises the following steps that sound wave soot blowers are arranged in a low-temperature reheater and economizer area of a boiler flue; the smoke temperature is monitored through a sound wave temperature measuring device, and the average temperature is calculated based on the sound wave propagation speed; the control system receives the temperature data, and the start-stop and operation frequency of the sound wave soot blower is dynamically adjusted by analyzing the temperature change trend; the arrangement of sound wave soot blowers is simulated and optimized through CFD, so that sound wave energy accurately acts on the ash deposition hidden danger area; smoke temperature change is monitored in real time by using a sound wave temperature measurement technology, and a basis is provided for intelligent control; a grouping circulating operation mode is adopted, so that the system load is reduced while the ash removal effect is ensured; and in cooperation with filtered and purified compressed air and frequency-adjustable low-frequency sound waves, the efficient and lossless ash removal process is achieved.

The utility model discloses an enhanced low-frequency diaphragm type sound wave soot blower which comprises a sound wave soot blower body, a connecting pipe is arranged at the output end of the sound wave soot blower body and provided with a sound amplification barrel through a sealing mechanism, the sound amplification barrel is arranged on a boiler body, and an installation plate is fixedly arranged on the side wall of the boiler body. A lifting mechanism matched with the sound wave soot blower body is arranged on the mounting plate, and the bottom end of the sound wave soot blower body is connected with the side wall of the boiler body through an auxiliary mechanism. The sound wave soot blower has the advantages that the sound wave soot blower body can be conveniently driven to move up and down, then the sound wave soot blower body can ascend to be matched with an auxiliary mechanism for guiding and positioning during use, normal work and use are not affected, when maintenance or replacement is needed, the sound wave soot blower body can descend, workers do not need to climb to work, safety is improved, operation is convenient, and work efficiency is improved. And the maintenance efficiency is improved.

The invention relates to the technical field of industrial cleaning equipment, in particular to a novel high-frequency high-pressure sound wave soot blower which comprises a base, and a sound wave horn is fixedly connected to the bottom face of the base. The cover plate is fixedly installed on the top face of the base, a vibration cavity is formed in the connecting position of the base and the cover plate, the two ends of the vibration cavity extend downwards to form communicating cavities, and the sound wave loudspeaker communicates with the vibration cavity; the titanium vibrating diaphragm is arranged in the vibrating cavity; the air inlet adapter is fixedly installed on the side face of the base, and the interior of the air inlet adapter communicates with the communicating cavity; accumulated dust in the boiler can be effectively removed, the possibility that dust removal four corners are formed in local dust removal is reduced, meanwhile, sound wave dust removal cannot directly act on the metal surface, and then the possibility that the surface of equipment is abraded is reduced.

The application discloses a rotating blowing mechanism for a pulse cloth bag dust collector, which comprises a fixing frame, a rotating bearing assembly, a gas pocket tank and a pulse assembly fixed to the bottom end of the gas pocket tank. The rotating bearing assembly is composed of a ring seat, a first gear ring, a second gear ring and a bevel gear shaft. A first driving motor and a second driving motor are respectively engaged with the two gear rings, synchronous driving is realized to rotate and blow the gas pocket tank, and asynchronous driving is realized to adjust the lifting of the gas pocket tank. The gas pocket tank is internally provided with a sliding guide groove and a straight rack, the output gear at the end of the bevel gear shaft is engaged with the straight rack to realize automatic adjustment of the blowing height. The pulse assembly comprises a rotating plate, a pulse blowing valve and a sonic soot blower. The pulse blowing valve is used for releasing high-pressure airflow to blow and clean the filter bag, and the sonic soot blower generates sonic oscillation through membrane resonance to loosen fine dust. The structure realizes the functions of rotating blowing, lifting adjustment and airflow-sonic coordinated soot cleaning, and has the advantages of wide soot cleaning coverage, low energy consumption and stable operation.

The invention discloses a sound wave soot blower for a boiler and a soot removing method, and belongs to the field of boiler equipment. According to the technical scheme, the device comprises a steam inlet valve, a telescopic ash removal component and a driving limiting component, the driving limiting component is arranged on the inner wall of a boiler hearth in a clamped mode, the position of the device can be adjusted through a walking component arranged in the device according to the actual use condition, and therefore ash removal is conducted on the dead angle position of the inner wall of the boiler; the overall ash removal efficiency is effectively improved; in addition, the device adopts a non-contact ash removal method, so that the heating surface of the boiler cannot be abraded, and the service life of the whole equipment is prolonged.

The utility model discloses a non-rigid transmission connection whistle type sound wave soot blower which comprises a sound wave modulator assembly, a driving motor and a base plate, the sound wave modulator assembly comprises an air cavity shell, a connecting rotating shaft, a moving ring, a bottom plate and an arc-shaped guide piece, and one side face of the air cavity shell is further provided with a hollow cylindrical connecting part; the arc-shaped guide piece is arranged on the bottom plate, the movable ring is movably arranged in the air cavity shell, and the connecting rotating shaft is connected with a rotating shaft of the driving motor in the mode that the gear is connected with the synchronous belt. According to the scheme, the driving motor and the sound wave modulator assembly are arranged in a split mode, and the driving motor operates independently in a space, so that when the driving motor or the sound wave modulator assembly is abnormal, maintenance is very convenient, the damaged assembly can be independently maintained, and the maintenance efficiency is improved. And in addition, the split type arrangement is also convenient for daily maintenance of the equipment.

The invention relates to the technical field of sound wave soot blowers, and discloses a spiral structure sound wave soot blower which comprises a shell, a turbine is installed at the top of the shell, one end of an air inlet of the turbine communicates with a hollow shell, the hollow shell is located in the shell, and the circumferential outer wall of the hollow shell is fixedly connected with an upper spiral plate and a lower spiral plate; a plurality of air passing holes are formed in the lower spiral plate, an air bag is arranged at the top of each air passing hole, an air passing channel is formed between the adjacent upper spiral plate and lower spiral plate, and a sound transmission hole is formed in one side of the shell. According to the invention, sound waves emitted by gas flowing through the gas passing channel in the shell can be increased, high-load operation of the turbine is reduced, meanwhile, the sound waves generated in the shell can be further increased through arrangement of a knocking assembly and a stop block, and a worker can conveniently disassemble and replace the outer joint through a threaded connection mode.

The utility model discloses an adjustable sound wave soot blower which comprises first adjusting assemblies, a furnace body is arranged between the first adjusting assemblies, second adjusting assemblies are arranged on the first adjusting assemblies, parts of the second adjusting assemblies make contact with the furnace body, and the first adjusting assemblies and the second adjusting assemblies are matched with each other to adjust the soot blower. The boiler ash removal effect and efficiency are improved, specifically, in the maintenance and overhaul process of the sound wave ash removal device according to needs through the first adjusting assembly, the problem that in the prior art, the overhaul efficiency of multiple ash removal devices is low can be solved, multi-position accurate adjustment can be achieved through the second adjusting assembly, and the practicability of the boiler ash removal device is improved. The soot blower has the advantages that the soot blower is simple in structure and capable of cleaning soot at multiple angles, sound waves can cover all corners in the boiler, the problem that a traditional fixed sound wave soot blower cannot comprehensively clean the soot is solved, the space occupied by the soot blower is reduced, the heat efficiency of the boiler is improved, the service life of the soot blower is prolonged, and the soot blower has a remarkable energy-saving effect.

The utility model relates to the technical field of flue gas treatment, in particular to sound wave soot blowing equipment for soot blowing of an SCR (Selective Catalytic Reduction) reactor, which comprises a reactor body, a catalyst layer, a first sound wave soot blower, a dust separation plate and a cleaning assembly, the cleaning assembly comprises a second sound wave soot blower, an air compressor, a connecting pipe, a blowing pipe and a swing component, the second sound wave soot blower is fixedly connected with the reactor body, the air compressor is fixedly connected with the reactor body, the blowing pipe is rotationally connected with the reactor body, and the two ends of the connecting pipe communicate with the air compressor and the blowing pipe correspondingly; the connecting pipe is arranged on the air compressor, and when the dust separation plate needs to be cleaned, the second sound wave soot blower is started firstly, so that accumulated dust on the dust separation plate can fall off; and then the air compressor and the swing component are started, so that the air flow sprayed out of the spraying and blowing pipe can blow the fallen accumulated dust into the dust collecting pipe to be collected, and the purpose of improving the cleaning effect on the dust isolation plate is achieved.

The utility model discloses an anti-fouling device for a boiler air pre-heater, which belongs to the technical field of boiler air pre-heaters and comprises a boiler air pre-heater main body, air pre-heater pipe orifices are arranged at two ends of the boiler air pre-heater main body, a plurality of flue gas pipes are arranged in the boiler air pre-heater main body, and the flue gas pipes are horizontally arranged in the boiler air pre-heater main body at equal intervals. A plurality of fixing pieces are arranged in the boiler air pre-heater body at equal intervals, the edges of the fixing pieces are fixedly connected with the inner wall of the boiler air pre-heater body, the flue gas pipe penetrates through the fixing pieces, a pair of mounting holes are symmetrically formed in the upper end of the boiler air pre-heater body, and sound wave soot blowers are arranged in the four mounting holes. The sound wave soot blower is arranged in the tube box air pre-heater, compressed air is used for cleaning floating ash on the surface of a tube box through sound production of a horn, a dirt-blocked air pre-heater pipeline is dredged, the effect of cleaning accumulated ash of the tube box air pre-heater and a flue is achieved, the situation that the current of an induced draft fan is increased due to blockage of the air pre-heater is restrained, and the blowing-out cleaning work is reduced.

The utility model belongs to the technical field of flue gas denitration, and particularly relates to an ammonia injection grid sewage blockage treatment system which comprises a shell, a sewage treatment device and a sewage treatment device, the ammonia spraying pipes are arranged in the shell in a penetrating manner to form a grid structure, and a plurality of ammonia spraying holes are formed in the ammonia spraying pipes; the sound wave soot blowers are arranged on the two sides of the shell; the pressure transmitter is arranged at the inlet end of the ammonia spraying pipe and is used for detecting the pressure value in the ammonia spraying pipe; wherein the sound wave soot blower and the pressure transmitter are both electrically connected with the control module, and the control module is configured to receive a pressure value detected by the pressure transmitter and turn on or turn off the sound wave soot blower according to the pressure value. And blockage substances such as accumulated dust and crystals in the ammonia spraying pipe and at the ammonia spraying holes are loosened and fall off under the vibration action of sound waves, so that the aim of cleaning dirt blockage on the premise that the ammonia spraying pipe is not damaged is fulfilled.

The utility model discloses a kind of acoustic wave soot blower based on ceramic resonant cavity structure, including center axis, the one end of center axis is provided with airflow ejector, the other end of center axis is provided with resonant cavity, the one end of airflow ejector is opened with air inlet, and the gasket is arranged on center axis, the one end of resonant cavity is provided with clamping plate, the one end of airflow ejector is opened with annular slit, the bottom of resonant cavity is opened with connecting hole, the one end of center axis is provided with threaded rod, and nut is arranged on threaded rod.The utility model is replaced by ceramic material more resistant to high temperature, wear-resistant by setting resonant cavity, gasket, clamping plate, connecting hole, threaded rod, nut, this structure the most easily worn, damaged resonant cavity part, the rest part uses high-temperature resistant metal material, significantly improve the service life of resonant cavity acoustic wave soot blower in high-temperature region continuous work, simultaneously adopt the structure of convenient and quick replacement ceramic resonant cavity.