780 results about "Electrostatic precipitator" patented technology

The invention relates to a coal-fired unit electrostatic dust collection energy-saving optimization method, system and equipment and a storage medium, and the method comprises the steps: obtaining historically collected system operation data of a coal-fired unit electrostatic dust collection system, and constructing an outlet NOx concentration prediction model and an outlet dust concentration dynamic model according to the system operation data; power optimization control strategies of high-voltage power supplies of all levels of electric fields in the dust removal system are obtained, a model is built based on the outlet NOx concentration prediction model, the outlet dust concentration dynamic model and the optimization control strategies, and an electrostatic dust removal energy-saving optimization model is obtained; acquiring a preset environment-friendly standard concentration, and analyzing the environment-friendly standard concentration through the electrostatic dust collection energy-saving optimization model to obtain an optimal dust collection parameter; and adjusting the current or voltage of each level of electric field in the dust removal system according to the optimal dust removal parameters. Through the constructed energy-saving optimization model, the electrostatic dust collection control system can reduce the dust emission concentration and meet the pollutant emission standard, and meanwhile, the energy consumption of the electric dust collector can be greatly reduced.

The invention discloses a back corona rapping electric dust remover fault early warning method based on all-condition monitoring, and relates to the technical field of fault early warning, and the method comprises the steps: obtaining a rapping signal, and extracting back corona features based on wavelet transform and spectral analysis; constructing a dynamic coupling model of rapping strength-dust layer thickness, and combining back corona characteristics to obtain working condition characteristic vectors; obtaining a working condition data set, and obtaining a health degree scoring sequence under each time window in combination with the working condition feature vectors; decomposing the health degree scoring sequence into a plurality of intrinsic mode components, identifying abnormal fluctuation features based on a Markov chain, and performing risk level judgment; through all-condition monitoring and multi-modal data fusion, a back corona feature extraction, dust layer thickness prediction and health degree scoring model is constructed, dynamic identification and risk early warning of the operation state of the electric dust remover are achieved, and the problems that a traditional method is single in monitoring dimension and lags in response are solved.

The embodiment of the invention provides an electrostatic precipitator polar plate system ash removal device and a control method thereof, and belongs to the technical field of electrostatic precipitation. The device comprises: a main frame for mounting each working module; the ash removal module comprises a polar plate rolling brush device and a polar line straight brush device; wherein the polar plate rolling brush device is mounted at the front end of the main frame and used for cleaning the surface of an anode plate in an electric precipitator polar plate system; the polar line straight brushing device is installed at the rear end of the upper surface of the main frame and used for cleaning the cathode line surface in the electric precipitator polar plate system. The adsorption walking modules are mounted at four corners of the main frame and are used for adsorbing the device on the surface of the anode plate through magnetic attraction force and driving the device to move; and the thickness measuring device is mounted at the tail end of the main frame and used for detecting the thickness of residual dust on the surface of the anode plate to judge whether reinforced cleaning is needed. According to the scheme, automatic dust removal of the electric dust remover polar plate system is achieved, the manual intervention frequency is effectively reduced, and the dust removal effect and operation safety are improved.

The invention relates to the technical field of boiler tail gas treatment, in particular to a boiler tail gas multi-pollutant cooperative control system based on linkage of a PLC and a frequency converter. The system comprises a data acquisition module, a PLC control module and a collaborative optimization module. Concentration data of pollutants in boiler tail gas are collected in real time through the data collection module, the boiler tail gas is introduced into the desulfurization and denitrification tower through the inlet induced draft fan, the PLC control module sets driving rules of the inlet induced draft fan through a logic controller of a PLC, the operation frequency of the inlet induced draft fan is dynamically adjusted according to the content of the pollutants in the boiler tail gas, and the desulfurization and denitrification effect of the boiler tail gas is improved. And the collaborative optimization module returns the tail gas which does not reach the standard to a boiler for secondary desulfurization and denitrification, the tail gas which reaches the standard is introduced into a dust removal tower through an outlet induced draft fan, the electric dust removal voltage is adjusted according to the content of ammonia gas in the tail gas, and linkage control over desulfurization, denitrification and dust removal is achieved by taking the minimum operation cost as the target and adopting a genetic algorithm.

Various implementations, systems and methods are disclosed for continuous, near real-time, hands-off sampling of airborne particulate matter, and qualification and / or quantification of biomolecules in the sample representative for biologic or microbial contamination. The systems and methods may utilize an electrostatic precipitator for sampling the matter; and a measurement assembly configured to illuminate, excite, or breakdown the sampled matter by electromagnetic radiation, and to detect a spectrum, or one or more wavelength bands of the scatter emitted by the sample. In an exemplary implementation, a sputter deposition process is employed to configure the sample for an enhanced plasmon resonance. The measurement data may be transferred via wireless communication means for cloud storage and signal processing.

The utility model relates to the technical field of wet type electrostatic dust collectors, in particular to a gas uniformizing device used in a high-voltage wet type electrostatic dust collector, which comprises a uniform distribution plate, a limiting component is inserted in the uniform distribution plate, and one side of the uniform distribution plate is connected with an edge sealing component in a sliding manner; a sliding rod is arranged on one side of the uniform distribution plate, a sliding way is arranged on the other side of the uniform distribution plate, holes are formed in the front face of the uniform distribution plate, and an inserting rod is welded to the back face of the uniform distribution plate. The limiting assembly comprises a rotating rod penetrating through the uniform distribution plate and an improved gas uniformizing device, the edge sealing assembly is additionally arranged on the edge of the uniform distribution plate, the anti-skid plates on the periphery of the uniform distribution plate are attached to the inner wall of the dust remover through fasteners and the anti-skid plates on the surface of the edge sealing assembly, installation is more convenient, the fasteners only need to be unscrewed in the disassembly process, and the dust remover is convenient to disassemble. The sliding rods, the sliding ways, the inserting rods and the holes are additionally arranged on the periphery of the uniform distribution plate, so that a plurality of uniform distribution plates can be spliced or disassembled at any time, and transportation and storage are facilitated.

The invention relates to the technical field of intelligent control, fault diagnosis, regulation and control of electrostatic dust collectors, in particular to a cathode and anode rapping concentricity compensation control method and system.The method comprises the following steps that after a central intelligent control system monitors that the concentricity of a cathode and an anode is abnormal, a preset diagnostic micro-intervention sequence is started; the diagnostic micro-intervention sequence comprises at least one low-risk detection operation aiming at a pre-judged potential fault cause; monitoring a dynamic response feature to the low-risk detective operation characterized by multi-source sensor data during execution of the diagnostic micro-intervention sequence; according to the method, the obtained dynamic response features are matched with the preset fault mode-response feature association information, the confidence coefficient of each potential fault reason is evaluated, and finally, the hierarchical regulation and control decision is executed based on the confidence coefficient and the abnormality severity, so that the problems of fuzzy diagnosis and high misjudgment risk caused by interleaving of multiple fault reasons are solved.

The utility model relates to a tail gas self-circulation white feather eliminating device, which solves the problems of poor white feather eliminating effect and high cost of the existing industrial tail gas. Comprising a quench tower, an absorption tower, a gas-gas heat exchanger, an electric precipitator and a tail gas suction fan, during use, dry high-temperature tail gas enters a heat exchange pipe in the gas-gas heat exchanger for indirect heat exchange, and the tail gas subjected to heat exchange enters the quench tower and is in countercurrent contact with quench water from the quench tower; the washed and condensed tail gas is discharged to the lower part of the absorption tower from the top of the quench tower under the action of the circulating fan, and the dried tail gas enters the electrostatic dust collector to be purified after being absorbed and filtered by the absorption filtering device from the absorption circulating pump, and then enters the shell of the gas-gas heat exchanger to be subjected to indirect heat exchange; the purified tail gas is heated by the unpurified tail gas and then is discharged into the environment, namely the tail gas is heated to an unsaturated state by the heat of the tail gas, so that the aim of eliminating white feather of the tail gas is fulfilled, and the production cost is low.

The present invention discloses an electrostatic precipitation cathode system capable of collecting positively charged dust, which includes RS small barbed wires, dust collection cathode wires, and a cathode rapping device. The RS small barbed wires are distributed in all electric fields of the electrostatic precipitator and have barbs capable of tip discharge when the high-voltage power supply is energized. The dust collection cathode wires are only distributed in 1 to 3 electric fields near the air outlet of the electrostatic precipitator and can adsorb positively charged dust particles by using a negatively charged dust suction structure when the high-voltage power supply is energized. The cathode rapping device can regularly rap the dust collection cathode wires to remove positively charged dust particles, thereby effectively improving the electrostatic precipitation efficiency.

The present invention discloses a mechanical-pneumatic double-vibration electrostatic precipitator, comprising a cathode system, an anode system, a high-voltage power supply, a shell, a mechanical vibrating device and a pneumatic vibrating device. The cathode system and the anode system are respectively distributed in the shell. When the high-voltage power supply is energized, on the one hand, the cathode system and the anode system can cooperate to form an electric field, and on the other hand, the cathode system can be used to ionize the air. The cathode system and the anode system can be mechanically vibrated and cleaned by a mechanical vibrating device arranged on one side. The pneumatic vibrating device can pneumatically vibrate and clean the cathode system and the anode system on the side facing away from the mechanical vibrating device. The dust removal effect is good, the space occupancy is low, and the service life is long.

The invention provides an ultra-clean converter one-time dry dust removal method which comprises the following steps: S1, constructing an ultra-clean converter one-time dry dust removal system which comprises a high-effect heat exchanger, a banana bend separator, a rotational flow heat recovery device, a water-cooling chain conveyor, an electrostatic dust collector, a high-temperature-resistant explosion-proof ultra-clean dust collector, a cooling replacement fan, a coal gas axial flow fan and a coal gas washing dehydrator; s2, purification; S3, recovery: passing the qualified coal gas through a recovery cup valve and then conveying the qualified coal gas to a coal gas cabinet; and S4, unqualified coal gas passes through a diffusion cup valve and then is sent to a diffusion chimney for ignition and diffusion. A converter gas waste heat recovery process is adopted, and meanwhile, an ultra-clean dust remover process is adopted, so that the concentration of an outlet of a dust remover can be stably maintained below 5mg / Nm < 3 >.

The invention relates to the technical field of electrostatic dust collection and discloses an accurate frequency adjustment method for an intelligent frequency modulation high-voltage power supply of an electrostatic dust collector. The method comprises the steps of collecting voltage signals with frequency fluctuation in operation of a high-voltage power supply to form a voltage sequence; dividing period segments by using wave crest distribution in the voltage sequence, and clustering to obtain adjustment subsequences; obtaining a trend fluctuation index based on local signal change trend fluctuation and signal differences of the adjustment subsequences, and obtaining an amplitude drop difference and an amplitude interval difference according to an amplitude change trend difference and an amplitude bit sequence change trend difference; obtaining a period stability coefficient by combining the difference, the average condition of the trend fluctuation index and the average condition of the sub-sequence similarity; constructing a Hankel matrix and performing singular value decomposition, and obtaining a main component proportion and a difference index based on a singular value condition; and according to the Hankel matrix line data correlation, the period stability coefficient, the main component proportion and the difference index, obtaining a signal stability index, and according to the signal stability index, accurately adjusting the high-voltage power supply frequency.

The present invention discloses an air hammer all-round vibration type electrostatic precipitator anode system, comprising an anode plate, a suspension beam and a clamping mechanism. The anode plate is suspended by the suspension beam in an electric field and arranged vertically to form an anode plate row. The anode plate row is clamped by the clamping mechanisms arranged horizontally from top to bottom and indirectly receives pneumatic vibration force from a pneumatic vibration device through the clamping mechanism. The anode plate can generate lateral displacement relative to the suspension beam along the pneumatic vibration direction during the pneumatic vibration, so the space utilization rate is large and the vibration cleaning effect is good.

The application relates to the technical field of dust collectors, and particularly discloses a comprehensive and efficient cleaning electrostatic dust collector which comprises a dust removal box body and a dust collecting hopper which are arranged in communication with each other, a plurality of anode plates are arranged in the dust removal box body, an electrode rod is arranged between two adjacent anode plates, an anode plate cleaning mechanism which moves up and down is arranged in the dust removal box body, the anode plate cleaning mechanism comprises a lifting frame and a lifting driving assembly, a hollow strip plate which is located directly below the gap between the two adjacent anode plates is arranged in the lifting frame, a row of impact strips are arranged in the hollow strip plate, a turntable protection shell which is used for extending into the other end of the anode plate is arranged on the hollow strip plate, a turntable is arranged in the turntable protection shell, and a guide groove which is used for being matched with the end guiding column of the impact strip is arranged on the turntable. The electrostatic dust collector disclosed by the application can cover the whole anode plate through the impact and vibration, the dust attached to the surface of the whole anode plate can be shaken off, and the dust removal effect of the electrostatic dust collector during long-term use is effectively ensured.

The invention discloses a method and system for controlling PM emission concentration of a coal-fired unit, and belongs to the technical field of coal-fired power generation. According to the method for controlling the PM emission concentration of the coal-fired unit, the inlet PM concentration, the slurry circulation flow and the inlet flue gas flow velocity of a wet flue gas desulfurization system, the flue gas temperature and the flow velocity of an outlet of a low-temperature economizer and the real-time load of the coal-fired unit are comprehensively considered, and an accurate feed-forward instruction is generated; according to the method, a feedforward instruction and a main instruction calculated by a PID (Proportion Integration Differentiation) control algorithm are combined to dynamically and accurately adjust the dust removal voltage of the electric dust removal system, so that the PM emission concentration of a coal-fired unit is effectively controlled, and the coal-fired unit can keep stable emission performance even in a frequent load change or low load operation state.

The utility model discloses vacuum bottle electrostatic dust collection equipment which comprises a double-channel conveying device, an upper electrostatic dust collector, a lower electrostatic dust collector, an upper blowing mechanism and a lower blowing mechanism, the double-channel conveying device comprises a rack and two conveying mechanisms, and the two conveying mechanisms are symmetrically arranged on the rack front and back; each conveying mechanism comprises a feeding mesh belt, a material arranging screw rod, a feeding rotary table, a transmission clamping jaw chain group, a discharging rotary table and a discharging bin which are sequentially arranged in the conveying direction; the upper electrostatic dust collector and the upper blowing mechanism are sequentially arranged above the conveying clamping jaw chain sets of the two conveying mechanisms in the conveying direction. The lower electrostatic dust collector and the lower blowing mechanism are sequentially arranged below the conveying clamping jaw chain sets of the two conveying mechanisms in the conveying direction. According to the electrostatic dust collection equipment for the vacuum bottle, an electrostatic dust collection procedure and a clean compressed air cleaning procedure are integrated, and compared with a single dust collection procedure of a traditional filling machine, the dust collection effect is more obvious, so that the product quality is guaranteed.

The invention relates to the technical field of high-frequency power supply control, in particular to a high-frequency power supply driving control circuit and driving control method for an electric precipitator, and the method comprises the steps: collecting dust concentration data, current data, voltage data and flue gas temperature data of the electric precipitator in observation time periods at all moments; analyzing the dispersion degree of each parameter in the time window, performing anomaly detection on the data of each parameter in the time window, and obtaining the disorder index of each parameter according to the anomaly detection result; the confusion degree of the confusion indexes of various parameters at all moments in the observation time period of each moment is combined with multi-attribute decision analysis to obtain the comprehensive proximity of each moment, and the comprehensive working condition fitness of the electric dust remover at each moment is obtained; and controlling a high-frequency power supply of the electric dust remover by combining the disorder index of each parameter on the basis of a numerical relationship between the comprehensive working condition fitness and a preset threshold value. The invention aims to dynamically adjust the power supply output and ensure the efficient operation of the electric dust remover.

The invention discloses an electrostatic dust collector high-voltage power supply dynamic adjustment method based on fuzzy control, and the method comprises the steps: extracting the impedance change and dust concentration based on real-time operation parameters, judging the tripping risk through fuzzy reasoning, and adjusting the output voltage. And in combination with dust distribution characteristics, pulse parameters are optimized through a fuzzy control algorithm, and waveforms matched with particle motion are generated. Environment parameters are collected to construct a working condition model, and a control mode is switched after scene recognition. And predicting a load change trend, and calculating a millisecond-level response strategy. And fusing the dust removal efficiency and the energy consumption target, dynamically distributing weights, calculating a comprehensive control strategy, verifying a balance state, iteratively adjusting a weight coefficient, and realizing dynamic adjustment of the high-voltage power supply. According to the invention, the stability, the dust removal efficiency and the energy consumption balance of the high-voltage power supply are remarkably improved, and intelligent control of multi-objective optimization is realized.

The utility model relates to the technical field of electrostatic dust collectors, and discloses a wet-type electrostatic dust collector capable of efficiently removing dust, which comprises a case, an air inlet is arranged at the upper end of the case, a fan mounting frame is arranged on the lower side of the air inlet in the case, and a fan is arranged on the lower side of the fan mounting frame. A fan is mounted in the fan mounting frame, a plurality of dust collecting plates are fixedly mounted on the lower surface of the fan mounting frame at equal intervals, a horizontally-arranged lifting support is arranged on one side of each dust collecting plate and extends to the two sides of the dust collecting plate through the two ends of a water pipe, and a plurality of nozzles facing the dust collecting plates are mounted on the outer wall of the water pipe. And the lifting bracket is driven by the lifting electric guide rail to move by taking the guide rail as a path, so that the water mist completely covers and flushes the surface of the dust collection plate, the cleaning effect of equipment is improved, and dust residues are avoided.

The invention belongs to the technical field of converter gas treatment, and relates to a converter high-temperature vaporization flue boiler outlet gas treatment device, which comprises a first conveying pipeline, a second conveying pipeline, a cyclone dust collector and a tempering dust collector, an inlet of the first conveying pipeline is used for being connected with a coal gas outlet of a converter vaporization flue boiler, an outlet of the first conveying pipeline is connected with an inlet of the cyclone dust collector, an inlet of the second conveying pipeline is connected with an outlet of the cyclone dust collector, and an outlet of the second conveying pipeline is connected with an inlet of the tempering dust collector. An outlet of the tempering dust remover is connected with an electrostatic dust remover; the first conveying pipeline is provided with fire extinguishing equipment used for extinguishing sparks in the pipe section, and the second conveying pipeline is provided with at least one fire pipe evaporator arranged in the flowing direction of coal gas. The problem that the fire tube is blocked due to zinc liquid drops, high-temperature molten ash and the like condensed by zinc steam in the coal gas heat and mass recovery process through the fire tube evaporator is solved.

The utility model provides a wet-type electrostatic dust collector connected through bolts, and relates to the field of wet-type electrostatic dust collectors. The wet-type electrostatic dust collector connected through the bolts comprises an inner chamber structure, the inner chamber structure comprises an upper air chamber, a dust collection chamber, a lower air chamber and an air inlet chamber which are sequentially communicated, the interior of the dust collection chamber is of a vertical honeycomb tubular structure, the honeycomb structure in the dust collection chamber is an anode, a cathode beam frame is installed in the upper air chamber, and a cathode wire is installed on the cathode beam frame; according to the bolted connection wet-type electrostatic dust collector, the external frame is in bolted connection, the whole wet-type electrostatic dust collector is manufactured in a field, only bolts need to be connected in the field, equipment installation is flexible, the requirement for the field during construction is greatly lowered, the construction progress is accelerated, and through the arrangement of the spraying device, sprayed water flushes the cathode wires and the honeycomb-shaped anodes and is matched with rotating work, the dust collection efficiency is improved. Therefore, the purpose of enlarging the water spraying range is achieved, the purpose of evenly spraying water is achieved, and finally the valve is opened to discharge water.

The invention discloses an automatic control system for an electric precipitation high-frequency power supply, belongs to the field of electric precipitation control, and aims to solve the problem that an existing control system is not timely enough to adjust. Through the data acquisition module, the mathematical modeling module, the control adjustment module, the communication interface module and the man-machine interaction module, unit operation parameters can be accurately obtained in real time, a mathematical relationship with a high-frequency power supply is established, then dynamic adjustment of the high-frequency power supply is achieved, output is controlled under the condition that the electric precipitation operation efficiency is optimal, and the electric precipitation efficiency is improved. The output current of the electric precipitation high-frequency power supply is automatically given, the labor force of manual control is reduced, the electric precipitation efficiency is maintained to be optimal in real time, the electric energy waste of the high-frequency power supply is reduced, and a visual operation interface is provided to facilitate the work of workers.

The invention discloses a third-generation converter one-time dry dust removal system which comprises a high-effect heat exchanger, a banana bend dust remover, a rotational flow heat recovery device and a high-temperature-resistant anti-explosion ultra-clean dust remover, raw gas of a converter enters the high-effect heat exchanger for heat exchange and recovery, the banana bend dust remover is arranged between the high-effect heat exchanger and the rotational flow heat recovery device, and the high-temperature-resistant anti-explosion ultra-clean dust remover is arranged between the banana bend dust remover and the rotational flow heat recovery device. The cyclone heat recovery device is connected with at least one high-temperature-resistant explosion-proof ultra-clean dust remover, clean coal gas is formed at a gas outlet of the high-temperature-resistant explosion-proof ultra-clean dust remover, the clean coal gas is sent to a coal gas switching station after passing through a coal gas axial flow fan and a coal gas washing dehydrator, and the coal gas which is detected to be qualified is sent to a coal gas cabinet. The traditional evaporation cold spray water and electrostatic dust collector process is omitted, the high-efficiency heat exchanger and anti-explosion ultra-clean dust collector process is adopted, the converter gas waste heat recovery efficiency is high, and the dust removal system is safe and environmentally friendly.

The embodiment of the invention provides an electric precipitator polar line surface defect identification method and system, and belongs to the technical field of electric precipitation. The method comprises the following steps: acquiring an original digital color image of the polar line in a corona discharge state; generating a grayscale image based on the original digital color image, and constructing a binary image for representing a brightness area according to a preset threshold; performing median filtering and mean filtering in sequence based on the binary image to construct a de-noised binary image, and performing Canny edge detection on the de-noised binary image to generate a halo edge image of a burr tip point; and based on the halo edge image, corona discharge positions and brightness information of two sharp points of each barb are extracted, and a polar line surface defect identification result is output according to a preset normal distribution mode. According to the scheme, the corona discharge characteristics can be stably extracted in complex imaging environments such as high dust and weak light, so that the polar line surface defects can be reliably identified.

The utility model discloses a medical PVC (polyvinyl chloride) granule collecting device which comprises a collecting box, a feeding pipe connected with the tail of a granulator is arranged at the top of the collecting box, a damping structural plate is mounted in the collecting box below the feeding pipe, a blanking barrel is arranged at the bottom of the damping structural plate, at least two oppositely mounted bent side plates are arranged in the blanking barrel, and the bent side plates are connected with the damping structural plate. Meshes penetrating through the side plate and the blanking barrel are formed in the side plate, a filter screen is mounted on the outer side of the blanking barrel in the position corresponding to the meshes, an exhaust fan is mounted on the blanking barrel on the outer side of the filter screen, a discharge port is formed in the bottom of the blanking barrel, an electrostatic dust collector is mounted at the discharge port, and a water mist generator is arranged between the blanking barrel and the collecting box. Granules are guided through the side plate in the blanking barrel and orderly fall on the guide plate to move to the discharge port to be bagged, dust generated after the granules collide with the bent section of the side plate penetrates through the meshes through the exhaust fan and is attached to the surface of the filter screen, and the dust generated in the granule collecting process is treated in cooperation with the electrostatic dust collector at the discharge port. And the harm to the body health of operators is reduced.

The train type dust falling device comprises a front section train and a rear section train which are arranged on a track of a return airway and connected in series, a horizontal cyclone water film dust remover and an electrostatic dust remover are sequentially arranged on the front section train from front to back, and an air inlet in the front end of the horizontal cyclone water film dust remover is connected with a dust collection pipeline system. A floating dust suction hood, a transfer point dust suction hood and a plurality of working face dust suction hoods are arranged on the dust suction pipeline system, and an electrostatic generator and a counter-rotating axial flow fan are arranged on the rear section of train side by side in the left-right direction. The device can move along with the movement of the coal face, keeps a good dust collection state, and greatly improves the dust collection effect and greatly improves the air environment of the coal face of an underground coal mine in a wet dust collection and electrostatic dust collection combined mode on the premise of ensuring gas safety.

The invention discloses an electrostatic dust collection cleaning workbench for a ceramic substrate, and relates to the technical field of electrostatic dust collection, the electrostatic dust collection cleaning workbench comprises a manipulator and a box body, the manipulator is arranged on the outer side of the box body, a workbench is arranged in the box body, an output mechanism is arranged at the top of the box body, and an air curtain mechanism is arranged at the bottom of the box body; an air pump is arranged on the side of the box body and communicated with the output mechanism and the air curtain mechanism through pipelines. The ceramic substrate is placed on the workbench, the air pump extracts nitrogen from the nitrogen tank, the nitrogen is conveyed into the output mechanism and the air curtain mechanism through the air pump, the output mechanism sprays the nitrogen, the sprayed nitrogen conducts electrostatic dust removal on the ceramic substrate on the workbench, the air curtain mechanism sprays the nitrogen, and the sprayed nitrogen is dense to form an air curtain barrier. The air curtain barrier and the output mechanism are combined to form a relatively closed space, so that interference of external dust is avoided, and the electrostatic dust collection effect of the ceramic substrate is improved.

The present invention discloses an intelligent sorting PLC system for the ash conveying unit, which includes three levels: T1, T2, and T3. The T1 level includes the first and second electric fields of the electrostatic precipitator, on the A and B sides. The internal "ash conveying" priority order is: (1) the A side of the first electric field; (2) the B side of the first electric field; (3) the A side of the second electric field; (4) the B side of the second electric field. The T2 level includes the economizer, and the internal "ash conveying" priority order is: (1) Unit B of silo pumps No. 3 and 4; (2) Unit C of silo pumps No. 5 and 6; (3) Unit A of silo pumps No. 1 and 2; (4) Unit D of silo pumps No. 7 and 8. The T3 level includes the third, fourth, and fifth electric fields of the electrostatic precipitator, on the A and B sides. The internal "ash conveying" priority order is as follows. The present invention relates to the technical field of PLC program control, which greatly reduces the consumption of compressed air and can save one air compressor. Since the power of each air compressor is above several hundred kilowatts, the energy-saving effect is remarkable.

The invention relates to the technical field of coating materials, in particular to a conductive lubricating coating material for an anode plate of an electric precipitator and a preparation method thereof.The surface of the anode plate of the electric precipitator is coated with the conductive lubricating coating material, and the conductive lubricating coating material comprises, by mass, 100 parts of raw materials, the coating comprises the following components in parts by mass: 10-30 parts of sodium water glass, 1-5 parts of styrene-acrylic emulsion, 15-40 parts of a graphite material, 3-5 parts of flaky nickel modified copper powder, 0.5-2 parts of a rust conversion agent, 1-2 parts of a silane coupling agent, 1-2 parts of an auxiliary agent and 14-68.5 parts of water. The mass ratio of the sodium water glass to the styrene-acrylic emulsion is (6-10): 1, and the modulus of the sodium water glass is 2.6-3.0; according to the conductive lubricating coating material for the anode plate of the electric dust remover, crystalline flake graphite and microcrystalline graphite are adopted as graphite materials, so that the conductive uniformity and lubricity of a coating are improved conveniently; the flaky nickel modified copper powder is added into the graphite material, so that coal ash particles are prevented from generating corona due to high-voltage static electricity and are attached and accumulated on the surface of an anode plate, and the dust removal efficiency of the electric dust remover is improved.

The present invention relates to the technical field related to electrostatic precipitation, and discloses an intermittent high-frequency power supply control mechanism for an electrostatic precipitator. In order to solve the problems that continuous connection of the dust collecting plate to the high-frequency power supply leads to difficult detachment of dust and increased useless energy consumption, a distribution fork is movably installed outside the dust collecting plate. After the dust collecting plate enters the flue gas flow area, the dust collecting plate is connected to the power distribution cabinet through the distribution fork, so that the dust collecting plate is connected to the high-frequency power supply for dust removal work; as the motor drives the dust collecting plate to rotate, the dust collecting plate will be far away from the flue gas flow area, and the distribution fork slides down, so that the dust collecting plate is no longer connected to the high-frequency power supply, ensuring that the dust collecting plate will not be connected to the high-frequency power supply during the ash cleaning process. Finally, under the continuous rotation of the dust collecting plate, the distribution fork controls the intermittent on / off of the dust collecting plate, ensuring that the dust collecting plate can be connected / disconnected in a timely manner, thereby reducing the useless power loss and finally achieving the intermittent control power supply effect.