783 results about "Soot blower" patented technology

The invention provides a soot blowing control method, device and equipment for a boiler and a storage medium, and the method comprises the steps: collecting a soot deposition state image of a heating surface of the boiler in real time through visual equipment, carrying out the segmentation and feature extraction of the image, and generating an initial detail feature vector; reconstructing a dust deposition feature image based on the feature vectors, further segmenting and extracting basic local feature vectors, and generating a final dust deposition state image; and classifying the ash deposition state images corresponding to all the visual devices, calculating the ash deposition thermal resistance value corresponding to the target image, and comparing the ash deposition thermal resistance value with a preset threshold value so as to intelligently decide whether to start the ash blower to remove the deposited ash. By the adoption of the technical scheme, redundant soot blowing operation is reduced, the steam consumption of the soot blower and the blowing damage risk of the heating surface are effectively reduced, meanwhile, safety accidents caused by soot deposition are avoided, and the safety and economical efficiency of boiler operation are improved.

The invention belongs to the field of artificial intelligence, particularly relates to a boiler soot blower fault diagnosis method and device based on deep learning driving, and aims to solve the problems that traditional manual inspection and threshold alarm response is lagged, the false alarm rate is high, and expert experience is relied on. The method comprises the following steps: constructing a multi-modal data fusion architecture, synchronously collecting sensor time sequence data, voiceprint signals and execution mechanism logs, inputting the data into a multi-branch feature extraction network after time-space alignment and normalization, respectively extracting spatial anomaly, time sequence evolution and spectrum features, and dynamically fusing through a cross-modal gating mechanism to generate a joint representation vector; a self-adaptive small sample diagnosis model is input, and cross-domain generalization and fault type discrimination are realized in combination with a meta-learning framework; and finally deducing a fault trend by an evolution prediction sub-module. According to the method, the diagnosis real-time performance, accuracy and perspectiveness are remarkably improved, the unplanned shutdown risk is reduced, safe and stable operation of the thermodynamic system is guaranteed, and good engineering compatibility and interpretability are achieved.

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 provides a high-pressure air energy soot blower which comprises an air storage tank, a compressor and an injection assembly, the air storage tank is provided with an air inlet and an air outlet, an outlet of the compressor is connected with the air inlet so as to be used for introducing compressed gas into the air storage tank, the injection assembly comprises an injection pipe, and the injection pipe is connected with the compressor. The injection pipe comprises a first section and a second section, the first section is connected between the air outlet and the second section, the second section is provided with a plurality of injection holes which are arranged at intervals in the length direction of the injection pipe, and the pipe diameter of the second section is gradually reduced in the direction from the first section to the second section. The high-pressure air energy soot blower has the advantages of being simple in structure and good in cleaning effect.

The utility model discloses an automatic soot blower for a calcining furnace. The automatic soot blower comprises an automatic driving module, a special-shaped telescopic module, a blowing pipe gun module, a high-temperature flue gas collecting module and a control module, the automatic driving module drives the special-shaped telescopic module to move transversely, the special-shaped telescopic module drives the blowing pipe gun module to stretch out and draw back longitudinally so as to stretch into the calcining furnace to blow ash, and the high-temperature flue gas collecting module can collect accumulated ash falling off from the calcining furnace and provide steam for the blowing pipe gun module. The device can replace manual work to clean ash deposition in the flame path of the calcining furnace, so that the labor intensity of workers is reduced.

The utility model relates to the technical field of soot blower gun barrel correction, and discloses a soot blower gun barrel correction device which comprises a base, a correction mechanism is arranged outside the base, a fixing mechanism is arranged outside the correction mechanism, the correction mechanism comprises a supporting frame, sliding grooves are formed in the top and the bottom of the inner side of the supporting frame, and the fixing mechanism is arranged in the sliding grooves. Moving assemblies are arranged in the two sliding grooves, moving rings are arranged at one ends of the moving assemblies, rotating grooves are formed in the inner sides of the moving rings, rotating rings are installed on the inner sides of the rotating grooves, gears are engaged with one ends of the rotating rings, rotating shafts are installed in the middles of the gears, and first motors are installed on the right sides of the rotating shafts; a third air cylinder is installed on the inner side of the rotating ring, one end of the third air cylinder is fixedly connected with a knocking hammer, according to the correction device for the gun barrel of the soot blower, the third air cylinder is started to push the knocking hammer to knock and correct a correction point, and the effect that the specific point can be corrected is achieved.

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 a speed regulation purging control method and system for a steam soot blower, and relates to the technical field of steam soot blower control. Stroke position data of a soot blowing gun barrel and a current signal of a driving motor are obtained and synchronously associated, and the speed regulation purging control method and system for the steam soot blower can be realized on the basis of data collected in a plurality of purging cycles. And identifying current anomalies which appear for multiple times at the same stroke position and have consistent current amplitudes and change forms, and identifying the stroke position as a fixed mechanical resistance position. For each fixed mechanical resistance position, a dynamically adjustable mechanical resistance reference value is determined. In the real-time purging process, according to the mechanical resistance reference value, the actual coking resistance signal value is obtained through separation from the total current value of the driving motor, and therefore the purging parameters of the soot blower are adjusted, the service life of the soot blower nozzle and the boiler heating surface can be remarkably prolonged, the operation cost is reduced, and the energy consumption is reduced. And intelligence and refinement of soot blower control are realized.

The invention provides a fault detection method and device for a soot blower in a coal-fired power plant, and the method comprises the steps: detecting the temperature of a valve of the soot blower through a temperature detection module, and transmitting the temperature to an intelligent data collection front-end module; the intelligent data acquisition front-end module packs the temperature into a digital signal temperature value and transmits the digital signal temperature value to the DCS control module; unpacking the digital signal temperature value into an analog signal temperature value through a DCS control module; the opening and closing state of a valve of the soot blower and a preset temperature value corresponding to the opening and closing state are obtained through a DCS control module; through a DCS control module, temperature values of all analog signals within a preset time period after the opening and closing state is obtained are selected; the soot blower is detected through the DCS control module according to the opening and closing state, the preset temperature value corresponding to the opening and closing state and the selected analog signal temperature values, the problem that the actual state of the valve of the soot blower cannot be truly reflected when mechanical transmission breaks down is solved, and the accuracy of the detection result is improved.

The invention discloses a soot blowing device of an SCR (selective catalytic reduction) denitration reactor, which comprises a fixing frame, a denitration shell and a soot blowing shell are fixedly arranged on the fixing frame, the denitration shell is communicated with the soot blowing shell, a catalytic unit for reducing nitrogen oxides in industrial flue gas is slidably inserted into the denitration shell, and the soot blowing shell is communicated with the denitration shell. A supporting piece for supporting the catalytic unit in the soot blowing state is fixedly arranged at the side end of the soot blowing shell, the supporting piece is arranged in the soot blowing shell, and a push-out device for pushing the catalytic unit to move to the supporting piece is arranged on the denitration shell; air can be automatically guided into the next group of air bags through the guide-in device and the switching device, so that the multiple groups of catalytic units can be used in sequence, and the device can still perform denitration operation in the soot blowing process, so that the system can keep high-efficiency operation at any time, and due to the design, the overall efficiency of the system is improved, and the energy consumption of the system is reduced. And the possibility of human errors is reduced through automatic operation, and the reliability and the stability of the system are enhanced.

The utility model discloses an anti-blocking device for a high-temperature SCR (Selective Catalytic Reduction) denitration catalyst of boiler flue gas, which belongs to the technical field of boiler flue gas treatment and comprises an anti-ash-blocking component correspondingly arranged at the top of a boiler flue, and the anti-ash-blocking component is positioned above the SCR catalyst and is provided with a plurality of layers of SCR catalysts arranged along the boiler flue from bottom to top. And the anti-ash-blocking assembly is of a herringbone structure. Flue gas is purified and removed before passing through an SCR catalyst, efficient and stable operation of the SCR catalyst and up-to-standard emission of boiler flue gas are guaranteed, power consumption of a boiler system is reduced, and the operation period of a boiler is prolonged; the anti-clogging assembly does not need to be provided with a catalyst dust removal pretreatment device, and investment cost increase caused by high-temperature dust removal is avoided; a herringbone ash blocking prevention assembly and a mechanical ash blowing device are arranged above an SCR catalyst, large-particle fly ash in boiler flue gas can be removed, blocking of the catalyst and a tail air pre-heater is reduced, and power consumption of an induced draft fan is reduced.

The invention provides a continuous supersonic speed airflow jet type soot blower which comprises a mixer, an ignition assembly, a shock wave tank and a jet assembly, the mixer is provided with an air inlet and a fuel gas inlet, the air inlet is used for introducing air into the mixer, the fuel gas inlet is used for introducing combustible gas into the mixer, and the jet assembly is used for jetting the fuel gas into the mixer. The ignition assembly comprises an ignition chamber and an igniter, the ignition chamber is connected with the mixer, the igniter is arranged in the ignition chamber and used for igniting mixed gas in the ignition chamber, the shock wave tank is connected with the ignition chamber and used for storing gas exhausted by the ignition chamber, the injection assembly comprises an injection pipe, one end of the injection pipe is connected with the shock wave tank, and the other end of the injection pipe is connected with the shock wave tank. And the other end of the injection pipe is arranged in the air pre-heater. The continuous supersonic speed airflow jet type soot blower has the advantages of being low in energy consumption and good in cleaning effect.

The shock wave soot blower adopting the flammable gas comprises a base and a soot blowing assembly, the soot blowing assembly is connected with the base and can move in the length direction of the base, the soot blowing assembly comprises an air section, a fuel section, a combustion section and a soot blowing section, the air section is used for introducing air and is connected with the fuel section, and the combustion section is connected with the soot blowing section. The fuel section is used for introducing acetylene and air, the combustion section is connected with the fuel section so as to be used for receiving mixed gas in the fuel section, the combustion section is provided with an ignition part, the ignition part is used for igniting the mixed gas in the combustion section, the soot blowing section is connected with the combustion section, at least part of the soot blowing section is arranged in the air pre-heater, and the soot blowing section is provided with a plurality of nozzles. Therefore, the combusted mixed gas is sprayed into the air pre-heater through the soot blowing section. The shock wave soot blower adopting the combustible gas has the advantages of being good in cleaning effect and high in safety.

The invention provides a soot blower adapting to the sector area of a rotary air pre-heater, the soot blower adapting to the sector area of the rotary air pre-heater comprises a gas storage tank, a pressurizing piece and a spraying assembly, the gas storage tank is provided with a gas inlet and a gas outlet, the pressurizing outlet is connected with the gas inlet, the spraying assembly comprises a spraying main pipe and a spraying branch pipe, and the spraying branch pipe is connected with the pressurizing piece. The spraying main pipe is connected with the gas outlet, the spraying branch pipe is communicated with the spraying main pipe and located at the end, away from the gas storage tank, of the spraying main pipe, the spraying branch pipe comprises a first section and a second section, the first section is connected between the spraying main pipe and the second section, and the second section is provided with a plurality of spraying holes which are arranged at intervals in the length direction of the spraying pipe; in the direction from the first section to the second section, the pipe diameter of the second section is gradually reduced, the multiple spraying branch pipes can rotate in the first direction, and the first direction is orthogonal to the extending direction of the spraying main pipe. The soot blower adapting to the sector area of the rotary air pre-heater has the advantage of being good in cleaning effect.

The invention relates to a coal and biomass blending combustion ash deposition and slag bonding prevention control system and method, and the system comprises a fuel feeding system which comprises a fuel analysis system and a first control system, and the fuel analysis system is connected with a stock bin; the fuel analysis system is used for obtaining fuel analysis data; the first control system is used for adjusting the blending proportion of coal and biomass according to the fuel analysis data; the flue gas monitoring system is connected with a flue gas outlet of the boiler and is used for sending detected flue gas data to the second control system; the ash deposition and slag bonding prevention system comprises a sound wave ash blowing device; the second control system can adjust starting parameters of the sound wave soot blower according to the received fuel analysis data and flue gas data so as to achieve soot formation and slagging prevention control over coal and biomass mixed combustion. The system solves the problem that a traditional coal and biomass blending combustion technology does not fully solve the balance among fuel adaptability, combustion efficiency, ash deposition and slag bonding and emission control.

The invention belongs to the technical field of boiler waste heat, gas and pressure utilization, and particularly relates to a lifting type intelligent soot blowing system and method for low-temperature area deposited soot, and the soot blowing system comprises a primary air pressurization soot blowing system, a vertical guide rail advancing soot blower and an intelligent control module. And the intelligent control module uses a blockage prediction intelligent algorithm and a dynamic soot blowing strategy. The primary air pressurization soot blowing system leads out part of dust-free primary air from an outlet of a boiler air pre-heater to serve as soot blowing primary air, and the dust-free primary air is conveyed to a lifting soot blower driven by a vertical guide rail after being pressurized to 0.5-0.8 MPa. The primary air pressurization soot blowing system is deeply coupled with the low-temperature economizer warm flue gas system, primary air is used as a soot blowing medium, the temperature of the soot blowing medium is about 320-350 DEG C, ammonium bisulfate condensate can be effectively dried and removed, and fly ash adhesion is reduced; and the soot blowing coverage rate reaches 100%, soot blowing according to needs is achieved, and the operation stability and economical efficiency of the unit are remarkably improved.

The invention discloses a coal-fired burner nozzle soot blowing device, and relates to the technical field of burner soot cleaning, the coal-fired burner nozzle soot blowing device comprises a combustion furnace, the top of the combustion furnace is fixedly provided with a feed inlet, the surface of the combustion furnace is provided with a control device, the surface of the combustion furnace is fixedly provided with an incinerator, and the incinerator is fixedly provided with a nozzle. A nozzle is fixedly installed on the surface of the incinerator, the vent holes are formed in the circumferential face of the sleeve, the gasket is rotationally installed at the end, close to the incinerator, of the sleeve, the air draft pump is fixedly installed on the circumferential face of the sleeve, the vent pipe fixedly penetrates through the inner wall and the outer wall of the sleeve, and the fixing rod is fixedly installed on the inner wall of the sleeve. And the suction opening is fixedly installed at the end, away from the sleeve, of the fixing rod, dust in the nozzle flows through negative pressure generated by the suction pump, the situation that the combustion efficiency of the combustion furnace is reduced due to excessive dust accumulation in the nozzle is prevented, and the stability during operation is guaranteed.

The utility model discloses a biomass grate-fired boiler soot blower, and particularly relates to the technical field of boiler soot blowing, which comprises a moving seat, a soot collecting box arranged on the surface of the moving seat, a kinetic energy box arranged on one side of the soot collecting box, a mounting box rotatably connected to one side of the kinetic energy box, an adjusting component arranged inside the mounting box, and a lifting platform connected to the bottom of the kinetic energy box. The lifting table is arranged on the surface of the moving seat, a fan is arranged at the bottom of the lifting table, the output end of the fan is connected with the dust collecting box, the input end of the fan is connected with a connecting pipe, and one end of the connecting pipe is connected with a dust blowing assembly. By arranging the first U-shaped soot blowing pipe and the second U-shaped soot blowing pipe, the boiler soot blowing device can adapt to boiler inner diameters of different sizes, the adaptability of the boiler soot blowing device is improved, the boiler soot blowing device is driven by the hydraulic rod to move in cooperation to achieve the function of moving back and forth, ash on the surface of the boiler is scraped away through the scraper, dead-corner-free collection of the ash in the boiler is achieved, and the cleaning efficiency is improved.

The present application relates to a threaded air soot blower, which includes a first base plate and a second base plate. A plurality of connecting frames are commonly connected between the first base plate and the second base plate. A soot blowing threaded rod is arranged between the first base plate and the second base plate. A driving device is arranged on the first base plate. A soot blowing outer tube is arranged at a position below the soot blowing threaded rod. A soot blowing inner tube is connected inside the soot blowing outer tube. A telescopic opening is formed in the second base plate corresponding to the position of the soot blowing outer tube. One end of the soot blowing outer tube extending out of the telescopic opening is closed. A plurality of soot blowing holes are formed in the side wall of the soot blowing outer tube near the closed end. The soot blowing threaded rod is connected with a moving device for driving the soot blowing outer tube to rotate and move. A plurality of rubbing devices for rubbing the outer wall of the soot blowing outer tube are arranged on two connecting frames at the lower positions. The present application has the effects of improving the situation of excessive slag on the surface of the soot blowing pipe, ensuring the long-term stable movement of the soot blowing pipe, and ensuring the soot blowing efficiency of the soot blowing pipe.

The utility model relates to the field of flue gas treatment, in particular to a partitioned blowing device, which comprises a gas distribution device, a blowing pipe and branch pipes communicated with the blowing pipe, one end of the blowing pipe is closed, the other end of the blowing pipe is used for feeding gas, the branch pipes are divided into a plurality of groups, and the opening and closing of the blowing pipe and the branch pipes are controlled by the gas distribution device. And when the air inlet of any group of branch pipes is communicated with the blowing pipe, the other groups of branch pipes and the blowing pipe are closed. By using the blowing pipe, when the dust of the filter bag needs to be removed, the flow of gas in the branch pipes of the blowing pipe can be multiplied as the flow of a high-pressure fan or an air compressor, so that the dust blowing capability is multiplied. And sufficient soot blowing can be carried out on large-area filter elements such as pleated filter cartridges and pleated filter bags. Meanwhile, the soot blower is small in size, the whole dust remover device is compact in structure, and flow field distribution is reasonable.

The invention relates to a measuring tool for multi-dimensional measurement of a large boiler steam soot blower combination, and belongs to the technical field of thermal power plant maintenance, the measuring tool comprises a ruler plate, the ruler plate is provided with length scale marks along the length direction, the end part of the ruler plate is hinged with a hinged plate, the free end of the hinged plate is integrally and fixedly connected with an arc-shaped plate, and the arc-shaped plate is fixedly connected with the ruler plate. Angle scale marks are arranged on the arc-shaped plate in the length direction, and when one side of the hinged plate is flush with the side face of the ruler plate, the zero scale line of the arc-shaped plate is just flush with the side face of the ruler plate. The operation is simple, the working efficiency can be effectively improved, and the operation safety risk is reduced.

The invention belongs to the field of artificial intelligence, particularly relates to a boiler soot blower strategy adaptive optimization system based on reinforcement learning, and aims to solve the problems of low energy efficiency and equipment wear caused by difficulty in collaborative optimization of soot blowing opportunity, position and strength in an existing soot blowing strategy. The system comprises a boiler operation state sensing module, a soot formation state evaluation module, a reinforcement learning decision engine module, a soot blowing execution control module and a feedback learning closed loop module, the soot formation state is quantified through multi-source data fusion, a multi-target optimization soot blowing strategy is generated through layered reinforcement learning, and strategy online evolution is achieved based on a feedback closed loop. According to the system, the heat efficiency is remarkably improved, the energy consumption and the maintenance cost are reduced, and the adaptivity and robustness of soot blowing control are enhanced.

The invention relates to a high-frequency millimeter-wave radar flue dust deposition online monitoring method and system, and belongs to the technical field of industrial process detection.The monitoring method comprises the steps that a flue three-dimensional structure model is loaded, working parameters of a millimeter-wave radar are configured, and a radar scanning space coordinate system is generated; controlling the millimeter-wave radar to transmit a frequency-modulated continuous wave signal; performing temperature drift compensation on the ash deposition layer reflection signal, and outputting a compensated radar signal intensity matrix; solving a flow field distribution equation in combination with the flue three-dimensional structure model, calculating a flow field turbulence intensity coefficient, and generating a radar signal correction mapping table; calculating the ash deposition thickness of each space coordinate point based on the signal propagation time delay, and outputting an ash deposition thickness distribution map; and extracting a thickness gradient feature vector and a Doppler frequency shift feature in the soot deposition thickness distribution diagram, inputting the thickness gradient feature vector and the Doppler frequency shift feature into a soot deposition state classification model, outputting a soot deposition abnormal region coordinate set, and generating a soot blower control instruction or a maintenance alarm instruction. According to the invention, the ash deposition monitoring precision and stability can be improved.

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 discloses a boiler soot blowing test and optimization system and method, and the method comprises the steps: judging a heating surface pipe wall temperature and a contamination factor in an effective space range of a current soot blower in a soot blowing process, and outputting a current soot blowing safety signal if the heating surface pipe wall temperature and the contamination factor are in a safe definite range; after the safety module takes effect, soot blowing modes preset based on the arrangement condition of soot blowers on the heating surface of the boiler are tested one by one, test data of each test are recorded, and a soot blowing relation database is formed; according to the soot blowing relation database obtained in the test process, the difference value between the total income brought by soot blowing of the unit and the soot blowing energy consumption loss is calculated, and the soot blowing net income is obtained; the total benefit brought by soot blowing of the unit comprises the benefit brought by heat consumption reduction of a steam turbine and heat load increase of a boiler; and outputting an optimized soot blowing mode according to the soot blowing net income. According to the method, online test and optimization of the soot blowing strategy can be adaptively carried out according to the soot blowing test, and the operation economy and safety of the generator set boiler are improved.

The invention provides a soot blowing control method for a boiler heating surface, and belongs to the technical field of boilers. The method comprises the following steps: inputting operating parameters required by coal quality low-grade heating value and pollution rate identification of a boiler under the current working condition into a pre-constructed exhaust gas temperature prediction model to obtain boiler exhaust gas temperature of each heating surface under the current working condition; calculating required operation parameters based on the coal quality lower heating value and heating surface heat absorption of the boiler under the current working condition to obtain a heat exchange coefficient factor of each heating surface under the current working condition; the heating surfaces with the boiler smoke exhaust temperature larger than a preset temperature threshold value are determined as heating surfaces to be subjected to soot blowing, the heating surfaces to be subjected to soot blowing are sequenced on the basis of heat exchange coefficient factors of the heating surfaces to be subjected to soot blowing, and the soot blowing sequence of the heating surfaces to be subjected to soot blowing is determined; and according to the soot blowing sequence of the heating surface to be subjected to soot blowing, soot blowers corresponding to the heating surface to be subjected to soot blowing are controlled to blow soot. According to the invention, soot blowing can be carried out on the heating surface of the boiler as required, and the safety and economical efficiency of unit operation are improved.

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 relates to the technical field of soot blowing devices, and discloses a boiler superheater soot blowing device which comprises a pipeline system provided with a main pipe and branch pipes, the main pipe is distributed along the X axis and arranged on one side of the bottom of an in-boiler superheater, and the branch pipes are distributed along the Y axis, welded to one side of the main pipe and communicated with the main pipe; the ends, away from the main pipe, of the branch pipes extend to the bottom of the boiler superheater, a plurality of air holes with upward openings are formed in the surfaces of the branch pipes in the Y-axis direction at equal intervals, every two adjacent air holes form a group, and the two air holes in each group incline relatively to form an included angle. When the smoke passes through the smoke channel, the smoke collides and diffuses at the vertex of the included angle to form an air bed, so that the passing smoke is always in a boiling state and cannot be deposited; through the unique air hole collision design and the knocking system, by means of a turbulence area formed by collision airflow and vibration sonic boom, smoke dust is effectively removed and prevented from being deposited, and the risk of dust deposition is reduced.

The utility model belongs to the technical field of wallboard processing equipment, and particularly relates to a soot blower for a wallboard perforating machine, which comprises a workbench, a processing frame and a placing station for placing a wallboard are arranged on the top surface of the workbench, the wallboard is placed on the placing station, a second air cylinder drives a drilling cutter to perforate the wallboard, a first air cylinder pushes the second air cylinder, and the first air cylinder drives the second air cylinder to perforate the wallboard. A drilling cutter can drill a plurality of holes in a wallboard on the same straight line, after drilling is completed, a draught fan is driven, airflow generated by the draught fan sequentially passes through an air inlet pipe, a shrinkage pipe and a conveying pipe and is finally diffused through a diffusion pipe, dust on the wallboard is blown away by the airflow and blown into a material collecting box, and a fourth air cylinder can push a frame plate to drive a material blowing piece to move. A fourth air cylinder pushes a frame plate to do reciprocating motion once on a material cleaning frame, so that dust on the surface of the wallboard is better cleaned; compared with the prior art, the surface of a punched plate can be cleaned, and the punching quality can be improved.

The utility model relates to the technical field of pipeline coatings, in particular to a quick coating device for an anticorrosive coating on the surface of a high-pressure pipeline, which comprises a track, a movable flat car is arranged on a track body, and a soot blower, a spraying device and a drying device are sequentially arranged behind the flat car and positioned above the track; two horizontal sliding table modules are symmetrically arranged on the top face of the flat car body, clamping assemblies are symmetrically arranged on bodies of the two horizontal sliding table modules, and pneumatic claws of the two clamping assemblies stretch into inner cavities in the two ends of a pipeline in the horizontal axial direction to clamp and fix the pipeline. A belt pulley A of the clamping assembly is in vertical transmission connection with a belt pulley B arranged in the vertical direction through a belt, the belt pulley B is connected with a motor A through a rotating shaft, and the motor A is used for driving a pneumatic claw to rotate. According to the coating device, the pipeline can automatically rotate after being clamped, the spraying efficiency is improved, meanwhile, the arched soot blowing device is additionally arranged, and the spraying quality is improved.