773 results about "Soot" patented technology

The invention discloses a high-bismuth slag and precious lead co-processing and efficient recycling method, and belongs to the technical field of non-ferrous metallurgy. High-bismuth slag and precious lead are mixed to obtain impurity-removed precious lead through impurity removal processes such as plug-blow antimony removal, liquation copper removal and tellurium removal by adding agents, and the impurity-removed precious lead is subjected to an oxidation refining process to obtain gold-silver alloy to recover precious metal. Bismuth and lead are similar, silver can be infinitely dissolved in a molten state, and the silver trapping agent has good silver trapping capacity. The high-bismuth slag and the precious lead are mixed to greatly reduce the temperature of a system, volatilization and unknown loss of metal such as Ag are reduced, energy consumption is remarkably reduced, the production cost is reduced, the recovery rate of metal such as bismuth, antimony and silver is increased, and the production efficiency is improved. The obtained molten slag is used for smelting high-bismuth slag, the obtained soot is used for smelting crude antimony, and efficient cyclic utilization of rare and precious metal resources is achieved.

The invention discloses a real-time monitoring information system based on a thermal power plant and a control method, and relates to the technical field of thermal power plants, accurate operation control is realized through modular design, an as-fired coal quality data acquisition module synchronously acquires data of elements, minerals, moisture and volatile components by relying on LIBS, terahertz and microwave resonant cavities and other acquisition equipment, and the real-time monitoring information system and control method are applied to the thermal power plant. Calculating a coal quality evaluation value through an algorithm; a boiler combustion feed-forward control module formulates a graded combustion strategy according to the combustion parameters; the biomass blending combustion characteristic acquisition module acquires combustion, chemical and ash form indexes at a specific time point after a combustion strategy is adjusted, and analyzes a slagging risk assessment value in combination with a weight model; the blending combustion regulation and control strategy analysis module dynamically optimizes the biomass blending combustion proportion according to the slagging risk grade, and coordinated regulation such as air distribution and soot blowing is assisted. The system realizes coal quality-combustion-slagging full-chain data driving decision, improves the combustion efficiency and safety of a thermal power plant, and reduces the slagging risk and pollutant emission.

A process of forming a titania-silica glass body, the process including exposing a titania-doped silica soot body to a constant steam pressure step during which the partial steam pressure is at a first partial pressure of steam P1 that is from about 0 Torr to about 760 Torr and exposing the soot body to a ramp-up steam pressure step during which the partial steam pressure increases from the first partial pressure of steam P1 to a second partial pressure of steam P2, the second partial pressure of steam P2 being from about 50 Torr to about 760 Torr. The second partial pressure of steam P2 being greater than the first partial pressure of steam P1. The process further including heating the soot body during the constant steam pressure step and during the ramp-up steam pressure step and increasing the temperature during at least one of the constant steam pressure step and the ramp-up steam pressure step.

The invention relates to the technical field of boiler operation management, in particular to a boiler soot blowing steam consumption multi-dimensional data analysis system which comprises a dynamic database construction module, a steam consumption calculation model construction module, an evaluation module and an optimization strategy generation module. The dynamic database construction module is used for cooperatively acquiring the ash scale thickness value of the heating surface partition of the boiler through an infrared thermal imager and a sound wave thickness measuring device, and realizing structured time sequence data fusion in combination with steam parameters and working condition parameters; the steam consumption calculation model building module is used for building a multi-dimensional consumption data set based on space, time and energy efficiency dimensions; the evaluation module outputs a unit ash scale removal steam consumption value, an invalid steam injection proportion value and a regional energy efficiency deviation coefficient value; the optimization strategy generation module generates a soot blowing pressure gradient adjustment strategy and a steam saturation temperature compensation strategy through index correlation analysis, fine evaluation and control optimization of soot blowing energy efficiency can be achieved, and the boiler operation efficiency and the steam utilization rate are improved.

The invention discloses an in-cylinder flame multi-characteristic parameter extraction and instantaneous evaluation method based on machine learning, and belongs to the technical field of power energy. Aiming at the problem that a traditional method is difficult to accurately extract flame transient characteristic parameters in a dynamic combustion environment, the method comprises the following steps: acquiring an in-cylinder flame image sequence through an endoscopic high-speed camera, and extracting an event driving key frame and a uniform time key frame by adopting optical flow analysis and fixed interval sampling; utilizing a double-flow feature extraction network to respectively obtain flame spatial form features and radiation features; capturing a flame parameter time evolution law through a time sequence convolutional network, and dynamically fusing key frame features in combination with a self-attention mechanism; and finally outputting flame temperature field and soot distribution prediction results. According to the method, instantaneous evaluation of the combustion process is realized, and a basis is provided for engine performance optimization and combustion fault diagnosis.

The invention discloses a steel plant high-temperature flue gas waste heat recovery system and method, and relates to the technical field of waste heat recovery, the steel plant high-temperature flue gas waste heat recovery system comprises a spiral conveyor, a flue gas pipeline and a waste heat recovery furnace, a main flue on process equipment in a steel plant is connected into a flue gas inlet of the waste heat recovery furnace through the flue gas pipeline, and a plurality of snakelike heating pipes are evenly distributed in the waste heat recovery furnace; one end of the snakelike heating pipe is connected with a water inlet pipe, the other end of the snakelike heating pipe is connected with a water outlet pipe, a plurality of ash discharge hoppers are arranged at the bottom of the waste heat recovery furnace, spiral conveyors are arranged at the bottoms of the ash discharge hoppers, a cleaning mechanism is arranged in the waste heat recovery furnace, and a smoke outlet of the waste heat recovery furnace is connected to next process equipment through a smoke exhaust pipeline. According to the system, the surfaces of the two sides of the S-shaped heating pipe can be cleaned, meanwhile, the knocking head of the knocking assembly can knock the inner wall of the waste heat recovery furnace, soot attached to the inner wall falls into the ash discharging hopper, automatic and comprehensive cleaning of heat exchange equipment is achieved, and the cleanliness of the surfaces of the heat exchange equipment is guaranteed.

The invention provides a flotation pretreatment reagent system and a method for treating gold-bearing waste soot and recycling gold through the flotation pretreatment reagent system, and belongs to the technical field of hydrometallurgy. According to the invention, a multi-agent synergistic agent system is designed, a gold recovery system of'catalytic oxidation-bridging anchoring-hydrophobic flotation 'is constructed, and strategy transformation from passive inhibition of carbon adsorption to active separation of a carbon carrier is successfully realized. Compared with a traditional method which only tries to passivate the adsorption activity of carbon, the method has the advantages that gold-robbing carbon interfering with gold recovery is converted into a flotation carrier easy to separate through accurate reagent matching, and the problem that carbonaceous interferes with cyaniding gold extraction is fundamentally solved. The modified carbon agglomerates are subjected to efficient flotation separation due to the excellent hydrophobic characteristic, and the gold is enriched in the tailings due to the fact that the gold is not hydrophobized. According to the method, the gold recovery rate of follow-up cyanidation leaching is remarkably increased, the agent consumption is greatly reduced, and the important technical value of achieving technological process innovation through molecular-level collaborative design is shown.

The invention discloses a photovoltaic panel ash deposition density inversion method fusing mixed pixel abundance estimation, and belongs to the technical field of hyperspectral remote sensing and environment monitoring. Acquiring all hyperspectral image data of different ash deposition densities from a complete cleaning state image to a complete ash covering state of the photovoltaic panel, and taking images at two ends in the hyperspectral image data as pure end member spectrums; constructing a spectrum enhancement index; the method comprises the following steps: constructing a mixed pixel model of photovoltaic panel dust deposition by using a pure end member spectrum, performing spectral unmixing on the mixed pixel model to obtain an abundance coefficient of a photovoltaic panel and a dust deposition component, and substituting the abundance coefficient into a K nearest neighbor (KNN) model to realize accurate inversion of the photovoltaic panel dust deposition density; and the precision evaluation of the quantitative inversion result of the ash deposition density of the photovoltaic panel is realized. The method has higher precision, stability and generalization ability in a complex ash deposition environment, and provides reliable support for intelligent operation and maintenance of a photovoltaic power station.

The invention discloses an energy-saving boiler, and relates to the technical field of boilers, the energy-saving boiler comprises a boiler body and a smoke exhaust pipeline mounted on the boiler body, the energy-saving boiler further comprises an air preheater mounted at the tail end of the smoke exhaust pipeline, and a pair of heat exchange pipe sets distributed in the smoke exhaust direction is mounted in the air preheater; the heat exchange tube set is composed of a plurality of heat exchange tube bundles, expanding parts and reducing parts which are alternately distributed along the axes of the heat exchange tube bundles are arranged on the heat exchange tube bundles, spiral flow deflectors and movable cleaning frames with upper and lower openings are arranged on the inner walls of the reducing parts, and the movable cleaning frames are movably installed in the heat exchange tube set and provided with through holes allowing the heat exchange tube bundles to penetrate through. Annular cleaning turbulent flow pieces corresponding to the heat exchange tube bundles are rotationally installed in the movable cleaning frame. By arranging the movable cleaning frame and a plurality of annular cleaning turbulent flow pieces in the movable cleaning frame, the outer wall of the heat exchange tube bundle can be continuously scraped in the moving process, and compared with a traditional soot blowing mode, the mechanical scraping mode is more thorough in soot cleaning.

Apparatus and methods are disclosed which are capable of being used to determine filtration efficiency of a filter body even in a clean state. Methods of determining a filtration efficiency of a filter including forcing an inlet flow comprised of a gas (such as air) flow into the inlet end of the filter at a set flow rate, introducing particles such as smoke particles into the inlet flow, and optically counting the number of particles entering and exiting the filter during a sampling event, such as with diffraction based optical particle counters positioned upstream and downstream of the filter. Preferably the gas flow is a soot-free flow stream which does not load the honeycomb filter body with contaminants that need to be removed or burned out. The filter body can thus remain in an essentially clean state even after testing its filtration efficiency.

The invention belongs to the technical field of thermal power generation intelligent control, and discloses a boiler heating surface soot blowing opportunity judgment method and device, equipment and a medium, an input signal is constructed according to the load change rate, a compensation coefficient is output through a trained correction model, a boiler heating surface cleaning factor is compensated, and a soot blowing opportunity judgment result is obtained. Identifying that the boiler is in a statistical controlled stable operation interval, collecting historical measurement values of the compensation cleaning factor under various working conditions, and determining a safe operation lower limit; performing sliding window filtering processing on the current measurement value of the compensation cleaning factor to obtain a target cleaning factor; and if the target cleaning factor is continuously lower than the safe operation lower limit and exceeds the set duration, generating a soot blowing trigger instruction, thereby realizing dynamic compensation of the cleaning factor in a rapid variable load state and accurate screening of the stable operation state of the boiler, reducing misjudgment of the soot blowing opportunity, improving the accuracy of determination of the soot blowing opportunity of the heating surface of the boiler, and improving the reliability of the soot blowing opportunity. And intelligent control over soot blowing operation is improved.

The utility model relates to the technical field of valves, in particular to a valve seat structure of an open type slag locking valve capable of being purged, which comprises a valve seat body, a disc spring used for abutting against the valve seat body and a supporting seat abutting against one side, away from the valve seat body, of the disc spring, a disc spring cavity used for installing the disc spring is formed between the supporting seat and the valve seat body, and the disc spring cavity is communicated with a valve cavity. The supporting seat is provided with a soot blowing groove; the open type disc spring cavity is adopted, the characteristic of medium circulation is utilized, accumulated impurities can be effectively purged, slag-bonding is prevented from influencing action of the valve, compared with a conventional column spring structure, the phenomenon of impurity blockage can be completely eliminated, the problem of crawling jamming caused by elasticity failure due to spring blockage in the using process of the valve is effectively solved, and the service life of the valve is prolonged. And redundant sealing structures are not needed, the overall structure is simple, maintenance and replacement are convenient and fast, in addition, media are guided through the soot blowing grooves in the supporting parts while the supporting parts are used for supporting the disc springs, and the impurity blowing effect is improved.

The invention relates to the technical field of sampling purging, and discloses a sampling pipeline purging auxiliary device. The supporting mechanism comprises a sampling sleeve, a soot blowing end fixedly arranged at the top of the sampling sleeve, a conveying rod at the bottom of the soot blowing end, and a cleaning end elastically connected with the bottom of the soot blowing end; the gas guide mechanism comprises a moving cavity formed in the sampling sleeve, a sealing block fixed at the bottom of the moving cavity, a transmission plate sliding along the inner wall of the sealing block, and an adjusting plate which is in torsion connection with the inner wall of the sampling sleeve and is positioned above the transmission plate; the reset mechanism comprises an air pressure module fixedly arranged on the outer wall of the sampling sleeve and a starting block embedded in the inner wall of the sampling sleeve. And the cleaning end head can effectively treat condensed blocks and can be matched with compressed air flow entering the cleaning end head in the resetting process, residual dust on the surface of the cleaning end head can be cleaned by the way, and the effect of active maintenance can be achieved. Intermittent cleaning can be achieved without continuously inputting compressed air, energy is saved, and meanwhile cleaning is remarkably improved.

The invention relates to an intelligent sound wave soot blowing method, system and terminal for a coal-fired boiler flue, and belongs to the technical field of coal-fired boiler flue cleaning.The intelligent sound wave soot blowing method comprises the steps that environmental parameters in the coal-fired boiler flue are monitored in real time; calculating sound wave parameters according to the environmental parameters; according to the sound wave parameters, a sound wave emitter is controlled to emit needed sound waves to a flue; the ash removal effect of accumulated ash in the flue is monitored; and according to the feedback ash removal effect, sound wave parameters are optimized so that sound wave energy can be evenly distributed in the flue. The flue dust removal device has the beneficial effect that the dust removal efficiency of the flue of the coal-fired boiler is improved.

The invention belongs to the technical field of engines, and discloses a multi-mode combustion system of a low-carbon fuel engine and a control method thereof.The multi-mode combustion system of the low-carbon fuel engine comprises a supercharger, an air inlet supercharging cooler, an engine body, a Miller adjusting mechanism and an exhaust gas recirculation (EGR) system, the Miller adjusting mechanism is arranged between the cooled air inlet channel and the engine body, and the engine body is provided with a dual-fuel injector used for injecting ignition fuel and low-carbon fuel into an air cylinder. An exhaust port of the engine body is connected with an exhaust passage, the other end of the exhaust passage is divided into two paths, one path is connected with an exhaust emission pipeline through an exhaust machine inlet of the supercharger, and the other path is communicated to an intercooling rear air inlet passage sequentially through an EGR valve and an EGR cooler. According to the multi-mode combustion system of the low-carbon fuel engine and the control method of the multi-mode combustion system, efficient compression ignition of low-carbon fuel can be achieved, the combustion process is accurately controlled, and soot emission is remarkably reduced.

Method for controlling a spark-ignition engine having an exhaust aftertreatment system with a particulate filter and a catalyst located downstream of the particulate filter, comprising: Adjusting the ignition timing, at which at least one cylinder of a spark-ignition engine (10, 200, 300) receives a spark, to a retarded setting. when the amount of soot retained by a particulate filter (230, 240, 252) exceeds a threshold value and if the engine load is less than a threshold value, wherein a quantity of fuel supplied to at least one cylinder provides rich or stoichiometric exhaust gases which are fed to the exhaust aftertreatment system, while the ignition angle at which a spark is supplied to the at least one cylinder is retarded, and whereupon the engine's air / fuel mixture is subsequently controlled to be lean in order to oxidize the soot held by the particulate filter, where the amount of oxygen stored in the catalyst is monitored and, if this exceeds a first threshold, the air / fuel mixture of the engine is increased to a richer mixture until the amount of oxygen stored in the catalyst is less than a second threshold, whereupon the air / fuel mixture is controlled to a leaner mixture.

A hydrocarbon stream is combusted within a reactor to produce soot and syngas. Sub-stoichiometric combustion of the hydrocarbon stream within the reactor converts at least 10% of the carbon in the hydrocarbon stream into soot. The syngas is mixed with a steam stream to produce a hydrogenation feed stream. A shift reactor converts at least a portion of the carbon monoxide and steam to carbon dioxide and hydrogen to produce a shifted gas stream. Water is separated from the shifted gas stream to produce a dehydrated gas stream. The dehydrated gas stream is separated to produce a hydrogen product stream and a recycle stream. The recycle stream is recycled to the reactor.

The present application relates to moxibustion physiotherapy technical field, especially a kind of moxa moxibustion head's moxa moxibustion physiotherapy device, including installation component, installation component is the main support component of entire device, the installation component includes moxa moxibustion seat, the inside hollow of moxa moxibustion seat;And, bottom support component being arranged in the inside of moxa moxibustion seat;And, combustion component being arranged in the top of bottom support component, combustion component is moxa moxibustion main component, moxa stick burns in combustion component inside, and the warmth stimulation generated by burning moxa and the medicinal properties of wormwood act on specific acupoint or part of human body, utilize the conduction of meridian, exert the effect such as activating blood circulation and dredging collaterals, bottom support component can slide in moxa moxibustion seat with combustion component, the beneficial effects of the present application are: as moxa stick combustion surface away from the person being moxa moxibustion in the process of burning, installation cylinder will drop, make combustion surface reapproach the person being moxa moxibustion, still will shake off the soot accumulated in the process of falling combustion area, guarantee combustion effect and moxa moxibustion effect.

The invention belongs to the technical field of power station boiler operation monitoring, and particularly relates to an on-line monitoring method and system for ash and slag on the heating surface of a boiler, and the method comprises the following steps: image acquisition and light spot positioning: capturing an original image in real time, carrying out the preprocessing, and extracting a light spot region; fitting a laser path to obtain a two-dimensional pixel coordinate in an image coordinate system; parameter acquisition and three-dimensional reconstruction: calling an internal reference matrix of a pre-calibrated image acquisition device, synchronously acquiring external parameter data measured and output by an attitude sensing device in real time, resolving an observation ray under a camera coordinate system, converting to a world coordinate system, and reconstructing a three-dimensional coordinate of a laser drop point under the world coordinate system; and thickness calculation and evaluation and result output and intelligent control are carried out. According to the invention, the thickness and the distribution range of ash slag on the heating surface of the boiler can be directly, accurately and online monitored in real time, so that a timely and reliable decision basis is provided for refined operation and intelligent ash blowing of the boiler.

This invention discloses a boiler load adaptive regulation system based on solid thermal storage, relating to the field of power plant boiler combustion technology. The invention includes a boiler with an economizer arranged in its tail flue, and a flue gas extraction pipe connecting the boiler and the economizer. The end of the flue gas extraction pipe is connected to an ash separation component, the outlet of which is connected to the flue gas inlet of a solid thermal storage component, and the flue gas outlet of the solid thermal storage component is connected to the air preheater inlet. This invention extracts high- and medium-temperature flue gas from different locations in the boiler during rapid load reduction, stores the heat from the high-temperature flue gas using solid thermal storage technology, and releases the heat from the solid thermal storage component when rapid load increase is needed. This heat is then used to increase the primary air temperature and pulverized coal temperature through a heat exchanger, enhancing the combustion intensity of pulverized coal in the furnace. By reducing the amount of high-temperature flue gas in the boiler, the load change rate of the unit is effectively improved.

The invention relates to the technical field of tail gas treatment, in particular to a tail gas treatment structure of a movable diesel generating set. Comprising a supporting seat and further comprises a cyclone separator, a first barrel, a flow guide part, a second barrel, a third barrel, a vibration part, a driving part and the like. Through cooperative cooperation of the cyclone separator, the impingement plate, the flow guide part, the vibration part and the driving part, in the tail gas treatment process, the cyclone separator separates and collects large particles, the impingement plate enables airflow to uniformly enter DOC for oxidation, the flow guide part sweeps high-temperature gas to the end face of the DPF to form uniform heating, and the tail gas treatment effect is improved. The vibration part transmits vibration to the DPF through the vibration transmission rod so that a soot layer can be loosened, and the driving part drives the flow guide part to rotate and the vibration part to work at the same time. Therefore, the problems that in the prior art, an ash-carbon composite layer formed by ash accumulation hinders regeneration heat transfer, and a soot layer is compacted compactly under the low-load working condition, so that regeneration starting is difficult, and heat spreading is slow are systematically solved.

This disclosure concerns a method of extracting vanadium, comprising mixing carbon soot ash with a leaching agent and an oxidising agent in a polar solvent in order to form a mixture and reacting the mixture in order to form vanadium 5 (V) ions; filtrating the mixture in order to separate a vanadium leachate from a leached ash; and purifying the vanadium leachate in order to obtain a vanadium filtrate. A weight ratio of carbon soot ash to polar solvent is about 1:2 to about 1:10. A mole ratio of leaching agent to oxidising agent is about 2:0.3 to about 2:2. This disclosure concerns a method of producing vanadium pentoxide.

The utility model relates to the field of environmental protection equipment, in particular to an ash removal port plug easy to disassemble. The utility model provides a deashing port plug easy to disassemble. The deashing port plug easy to disassemble comprises a plug body, a conical head, a limiting rod, a guide plate, a first spring, a support, a two-way screw, a rotating block and the like. A conical head is installed at the top of the plug, limiting rods are installed on the two sides of the plug, guide plates are arranged on the limiting rods in a sliding mode, the limiting rods are sleeved with first springs, the two ends of the first springs are connected to the plug and the guide plates respectively, supports are installed on the two sides of the guide plates, and two-way screws are rotationally connected between the supports on the two sides. A rotating block is installed in the middle of the two-way screw. The plug has the advantages that the guide plate is arranged and can play a guiding role when the plug is plugged into the ash removal opening, the plug can be directly pulled out during disassembly, and the effect that the plug is convenient to disassemble is achieved.

A process of forming a titania-silica glass body, the process including exposing a titania-doped silica soot body to a constant steam pressure step during which the partial steam pressure is at a first partial pressure of steam P1 that is from about 0 Torr to about 760 Torr and exposing the soot body to a ramp-up steam pressure step during which the partial steam pressure increases from the first partial pressure of steam P1 to a second partial pressure of steam P2, the second partial pressure of steam P2 being from about 50 Torr to about 760 Torr. The second partial pressure of steam P2 being greater than the first partial pressure of steam P1. The process further including heating the soot body during the constant steam pressure step and during the ramp-up steam pressure step and increasing the temperature during at least one of the constant steam pressure step and the ramp-up steam pressure step.

The invention discloses a method for comprehensive recovery of lead-tin white soot containing arsenic and zinc and harmless vitrification of arsenic and a method for preparing an arsenic glass clarifying agent. The method comprises the steps of first-stage acid leaching, second-stage acid leaching, copper sulfide precipitation, zinc arsenate precipitation, alkaline leaching, calcium arsenate precipitation, calcium arsenate drying and harmless vitrification of arsenic. According to the method, the zinc raffinate acid liquor for zinc extraction is adopted for acid leaching, zinc in the zinc raffinate acid liquor can be recycled, sulfuric acid in the zinc raffinate acid liquor can be utilized, and two-stage acid leaching is conducted in sequence, so that the leaching rate of arsenic, zinc and copper is increased, the separation effect of valuable metal such as arsenic, zinc and copper from lead and tin is improved, and the recycling grade of lead and tin in the soot is improved; the processes of copper sulfide precipitation, zinc arsenate precipitation, alkaline leaching and calcium arsenate precipitation are adopted in sequence, and copper, zinc and arsenic in the leachate are extracted respectively; the arsenic-containing glass clarifying agent which is economic and environment-friendly is prepared from calcium arsenate extracted from the ash, and harmless resourceful treatment of arsenic in the white ash is realized.

This oil evaluation device is provided with a calculation processing unit that calculates, on the basis of a measurement result of the density of oil in an internal combustion engine, the proportion of soot mixed into the oil as an evaluation index.

This invention discloses a method for testing the anti-coking performance of diesel engine oil in turbochargers. The main design concept of this invention lies in designing a full-process test based on engine operation, including high smoke conditions, low temperature and low load conditions, high temperature and high load conditions, and multiple rounds of cyclic testing to simulate the high and low temperature fluctuations of engine oil. This achieves a comprehensive assessment of the impact of engine oil performance changes on turbocharger coking. Furthermore, engine oil sampling is performed at predetermined stages to monitor relevant physicochemical properties. Further, the turbocharger is disassembled and evaluated after the test procedure, enabling an accurate evaluation of the engine oil's anti-coking performance. This facilitates the matching development of engine oils during engine development and avoids problems such as turbocharger damage and reduced power caused by using unsuitable engine oil. This invention comprehensively covers soot dispersion, high-temperature shear resistance, and temperature oscillation, providing significant guidance for the comprehensive evaluation of engine oil's anti-coking performance.

The utility model belongs to the technical field of combustors, and particularly relates to an outdoor combustor. Comprising a combustion tube, the top of the combustion tube is connected with a coaxial connecting tube, and the top of the connecting tube is connected with a glass tube; the bottom of the combustion pipe is connected with a branch pipe, the bottom of the branch pipe is provided with a base, the top of the branch pipe is provided with a baffle, and the side part of the combustion pipe is connected with an inclined blanking pipe for feeding from the upper part; the shell wraps the combustion tube; according to the scheme, the use experience of the outdoor burner is improved by adopting the connecting pipe engraved with the leakage holes, and the shapes of the leakage holes can be mapped to the ground during burning to form attractive light spots; meanwhile, the overall smoke exhaust performance can be improved through the design of the ventilation pipe and the smoke exhaust hole, the overall stability can be improved through the design of the shell and the base, and the situations such as rollover are not likely to happen in the using process; and finally, the shell and the base can collect cigarette ash generated by combustion, and the convenience during cleaning can also be improved through the detachable connection mode.

The invention discloses an efficient passive regeneration SDPF catalyst and a preparation method thereof. The catalyst comprises a high-void wall flow type DPF carrier, a front area coating and a rear area coating, wherein the front area coating and the rear area coating are coated on a front area and a rear area of the DPF carrier respectively and are connected with each other; the median pore diameter of the high-void DPF carrier is 15-25 [mu] m, and the porosity is 55-70%; the front area coating is an SCR active coating and is distributed on the outer wall of the air inlet side of the DPF carrier and in a pore channel; and the rear-area coating is a soot oxidation active coating containing noble metal and is distributed in the pore channel of the DPF carrier. On the premise that the NOx conversion efficiency of SDPF is not affected, the catalyst can improve the passive regeneration oxidation rate of soot at the same time, and the effect of synergistically promoting NOx reduction and soot oxidation is achieved.

A method for measuring the deep peak regulation load of a coal-fired boiler in an electric power auxiliary service market comprises the steps that preparation before testing is conducted, specifically, the quality of coal entering the boiler is selected, and all devices in a boiler system are verified; coal with the selected coal quality is put into the boiler to be combusted, and when the boiler load reaches or exceeds the soot blowing threshold value, soot blowing is conducted on the heating surface of the boiler comprehensively; after soot blowing is finished and a preset stable combustion condition is met, the boiler load is gradually reduced according to a preset rule; in the process of reducing the boiler load, monitoring each parameter of each device, and when each parameter exceeds a corresponding safety limit value, determining whether the abnormity is recoverable or not and determining the abnormity type; and for recoverable anomalies, the boiler load is gradually increased according to the type of the anomalies until the parameters are kept stable under the current boiler load for a preset time length, and the current boiler load reaching the preset time length serves as the deep peak regulation load lower limit. The power dispatching accuracy and the operation efficiency of the peak regulation market can be improved, and a reliable basis is provided for dispatching decision making.