1383 results about "Soot" patented technology

Systems and methods of the present disclosure includes a mixer configured to mix air and hydrocarbons and a burner configured to receive the mixed air and hydrocarbons and to generate syngas. The system also includes a cooling system configured to receive the syngas and to cool the syngas to form cooled syngas. The system further includes a collector configured to collect carbon from the cooled syngas as soot. Moreover, the system includes a flare stack configured to receive the cooled syngas and to burn off at least part of the cooled syngas.

The invention provides a process for recovering various valuable elements such as lead, zinc, silver and potassium from soot of a steel mill. The process comprises the following steps of water leaching, fluorine removal, high-temperature concentration, primary cooling crystallization, secondary cooling crystallization, secondary leaching, ammonia leaching and ammonia distillation. According to the recovery process, potassium in the soot of the steel mill is recovered in the form of potassium chloride, zinc is recovered in the form of zinc sulfate, silver is recovered in the form of silver chloride, only auxiliary materials such as sulfuric acid, ammonia water and calcium chloride which are low in price are used in the whole recovery process, the cost is low, no waste water or waste residues are generated in the whole process, the direct recovery rate of lead and zinc is 95% or above, and the production cost is low. The direct recovery rate of silver is 98% or above, and the method has practical application value.

The invention relates to the technical field of electric power construction, in particular to an auxiliary welding mechanism for electric power construction, which comprises a worktable, a mounting frame is mounted at the top end of the worktable, an air cylinder A is mounted at the top end of the mounting frame, a welding head is mounted at the output end of the air cylinder A, and a shell is arranged at the top end of the worktable. Negative pressure is generated through the suction pump, the smoke dust is efficiently collected into the collecting box through the air suction head, purified air forms an air curtain, diffusion of the smoke dust and welding slag is blocked, air is purified, a welding area is isolated, the suction force of the suction pump can further be used for driving the vibration mechanism, and therefore the smoke dust can be effectively collected. In addition, heat conduction of the welding head enables gas of the gas storage pipe to expand, suction force of the gas suction pipe and frequency of the vibration rod are automatically adjusted, welding quality and efficiency are improved, and frequent manual parameter adjustment is not needed.

The invention provides a sound wave generator soot blowing test method and system. The method comprises the steps that an experiment platform for simulating the working environment of a low-low-temperature economizer is built, and a test sample and sensing equipment are installed; setting power output parameters including a fixed power level and pulse power modulation parameter, a soot blowing frequency and phase control parameter, a time period and adaptive adjustment parameter, a sound wave frequency and an airflow velocity and vector control parameter; soot blowing operation is carried out, data are collected through sensing equipment, the soot coverage rate and particle information are obtained through an optical imaging sensor, and the pressure intensity generated by sound waves at the position where soot particles are located is obtained through an acoustic sensor array; calculating cleaning efficiency, and performing adjustment and iterative experiment on parameters according to the cleaning efficiency and data feedback; comprehensive optimization of the soot blowing process of the sound wave generator is achieved, the soot blowing effect of the low-low-temperature economizer is improved, then the overall operation efficiency of energy equipment is improved, the service life of the equipment is prolonged, and the requirements for environmental protection and energy saving are met.

The invention belongs to the technical field of smoke dust and flue gas sampling, and particularly relates to a smoke dust and flue gas sampling gun with a convenient-to-assemble and disassemble gun feeding support, the smoke dust and flue gas sampling gun comprises a sampling mechanism, the sampling mechanism comprises a sampling gun main body, a gun barrel and a smoke dust and flue gas sensor, the gun barrel is detachably sleeved with a centering fixing mechanism, a plugging mechanism and a pushing mechanism, the plugging mechanism penetrates through the centering and fixing mechanism and is fixedly connected with the centering and fixing mechanism, the pushing mechanism is fixedly connected with the plugging mechanism, and the centering and fixing mechanism is used for being fixedly connected with a flange plate of a flue and enabling the plugging mechanism and a sampling pipeline to be coaxially arranged. The device can be fixed on flange plates of different flues through the centering and fixing mechanism, the flange plates and the plugging mechanism can be always in a coaxial state, then sampling mechanisms of gun barrels with different pipe diameters can be pushed to move through the pushing mechanism, the position of a smoke dust and flue gas sensor in the flues can be accurately adjusted, and the sampling accuracy of the smoke dust and flue gas sensor is improved. And long-time manual supporting is not needed.

The invention discloses a flow field peeping type PIV measuring system and method in a backflow combustion chamber, and belongs to the technical field of flow field measurement in the backflow combustion chamber of an aero-engine, the flow field peeping type PIV measuring system in the backflow combustion chamber comprises a cooling purging device and a laser endoscope and / or a camera endoscope arranged in the cooling purging device; a cooling liquid channel, a purging gas channel and an endoscope channel which are not communicated with one another are arranged in the cooling purging device; the cooling liquid channel comprises a cooling liquid inlet channel from the connecting end to the detection end and a cooling liquid outlet channel from the detection end to the connecting end; the purging gas channel comprises a gas inlet located at the connecting end and a gas outlet located at the detecting end. The detection end is provided with the airflow guide structure, so that the purging gas flows to the end face of the endoscope channel along the end face of the detection end in a wall-attached mode, a stable wall-attached airflow barrier is formed, high-temperature fuel gas and soot are prevented from making direct contact with the mirror face of the endoscope, and mirror face pollution is effectively prevented.

The present application provides a domestic sludge self-sustaining incineration process, comprising primary drying, secondary drying, crushing, and incineration, comprising: performing primary drying on domestic sludge by using dry hot air to obtain sludge having a moisture content of 40% to 55%; then performing secondary drying by using hot flue gas produced during incineration to obtain sludge having a moisture content not higher than 20%; further crushing the sludge and mixing the crushed sludge with hot flue ash produced during incineration, and feeding the mixture into an incinerator to undergo self-sustaining incineration at 850°C to 950°C; and performing solid-gas separation on high-temperature flue gas produced after combustion, wherein the obtained hot flue gas is returned back for secondary drying and the obtained hot flue ash is mixed with the crushed sludge. The present application further provides a device for the treatment process. According to the treatment process of the present application, self-sustaining combustion can be safely and stably completed after drying pretreatment is performed on domestic sludge having a high moisture content; no auxiliary fuel needs to be added during incineration, and heat energy of the system can be fully utilized; reduction treatment of domestic sludge can be achieved.

The invention provides a display stand metal laminate processing laser cutting device, and relates to the field of laser cutting devices.The display stand metal laminate processing laser cutting device comprises a machine body, the upper portion of the machine body is provided with a front-back moving mechanism, the upper portion of the front-back moving mechanism is provided with a left-right moving mechanism, and the lower portion of the front end of the left-right moving mechanism is provided with a laser cutting head; a supporting plate is fixedly connected to the front side of the outer portion of the left-right moving mechanism, and a smoke dust filtering box is installed on the upper portion of the supporting plate. An unblocking mechanism and a reciprocating sweeping mechanism are respectively arranged on the upper side and the lower side in the smoke dust filtering box body. Through the arrangement of the reciprocating sweeping mechanism and the unblocking mechanism, accumulated objects on the primary filter screen can be automatically cleaned, so that the workload is reduced, and the production efficiency is ensured; the problems that after an existing laser cutting device is used for a long time, a large number of impurities are prone to being accumulated on the surface of a primary filter screen, the dust removal efficiency is affected, cleaning operation is tedious, and burden is brought to workers are solved.

The invention discloses an intelligent soot blowing control method and system in a multi-coal combustion state, and relates to the technical field of boiler control, and the intelligent soot blowing control method comprises the steps that a digital model of a boiler control system is established, and input and output measuring point positions are configured; collecting inlet and outlet flue gas and working medium parameters of each heating surface of the boiler through a sensor; on the basis of the real-time parameters, operation performance indexes of the boiler are calculated; according to the operation performance indexes, monitoring the dirt state, and calculating the cleaning factor, the heat transfer coefficient and the total heat transfer amount of each heating surface; and based on the monitoring result of the soot state, determining the optimal soot blowing time and soot blowing period by using an intelligent algorithm, and automatically controlling the soot blowing operation of each heating surface. According to the intelligent soot blowing control method in the multi-coal combustion state, the operation efficiency of the boiler is improved, the energy consumption is reduced, the service life of equipment is prolonged, meanwhile, the adaptability and stability of the system to the multi-coal combustion state are enhanced, and the overall performance and economic benefits of the boiler are remarkably optimized.

The invention discloses a filter bag dust removal framework, and relates to the technical field of dust removal equipment, the filter bag dust removal framework comprises a bottom plate, a framework body and a fixing mechanism, multiple groups of first vibration mechanisms are mounted on the framework body, a soot blowing mechanism is mounted in the framework body, and the soot blowing mechanism comprises a first motor, a reciprocating lead screw and a first guide rod; a moving plate is in threaded connection with the reciprocating lead screw, and the moving plate is in sliding connection with the first guide rod; a connecting plate is arranged on the moving plate, an annular pipe is fixedly connected to the top of the connecting plate, a plurality of air spraying pipes are sequentially communicated with the annular pipe in the circumferential direction of the annular pipe, a draught fan is installed on the top of the connecting plate, and an air inlet of the draught fan is communicated with a filtering piece; an inlet is formed in the bottom plate, first through holes are formed in the inner walls of the two sides of the inlet correspondingly, an adsorption plate is slidably connected into each first through hole, the two adsorption plates are combined to seal the inlet, driving assemblies are installed in the first through holes, and processing mechanisms are installed on the adsorption plates. Dust falling into the framework body can be conveniently treated.

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 smokeless moxibustion machine comprises a body, the upper end of the body is communicated with a smoke suction pipe, the outer wall of the smoke suction pipe is communicated with a combustion chamber, an anti-scalding cover is fixed to the outer wall of the combustion chamber, a vertical plate is fixed to the interior of the body, a controller is fixed to the left end of the vertical plate, a transverse plate is arranged at the right end of the vertical plate, and a filtering assembly is arranged at the upper end of the transverse plate. The right end of the body is provided with an air outlet, the right end of the body is rotatably connected with a box door, the left end of the combustion chamber is provided with a heat port, the front end of the combustion chamber is provided with a chamber door, the interior of the combustion chamber is slidably connected with an ash receiving net, and the upper end of the ash receiving net is provided with an ash flipping assembly. Through cooperation of the fixing frame, the shaking frame and the servo motor, a moxa cone fixed to a fixing needle shakes after being burnt for a period of time, ash on the moxa cone is shaken off into an ash receiving net to be collected, and heat at the burning end of a moxa stick is prevented from being blocked by the ash adsorbed on the moxa stick.

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.

Systems and methods of the present disclosure includes a mixer configured to mix air and hydrocarbons and a burner configured to receive the mixed air and hydrocarbons and to generate syngas. The system also includes a cooling system configured to receive the syngas and to cool the syngas to form cooled syngas. The system further includes a collector configured to collect carbon from the cooled syngas as soot. Moreover, the system includes a flare stack configured to receive the cooled syngas and to burn off at least part of the cooled syngas.

The invention relates to an automatic calibration device and method for continuously monitoring smoke dust concentration, and belongs to the technical field of environment monitoring. The device comprises a drying device, a dynamic heating system, a receiver and a radioactive source, a drying position, a sampling position and a detection position are sequentially arranged from left to right or from right to left; wherein the position where the drying device is located is a drying position, the lower portion of an exhaust pipe wrapped by the dynamic heating system is a sampling position, and the middle position where the receiver and the radioactive source are located is a beta-ray intensity detection position; and calculating the concentration of the smoke dust to be measured by adopting a smoke dust concentration automatic calibration algorithm according to the measured beta-ray intensity and sampling flow. According to the invention, long-time, high-precision, continuous and reliable operation of the light scattering smoke dust concentration continuous monitoring instrument can be ensured.

The embodiment of the invention provides an intelligent soot blowing method, system and equipment for dry deslagging of a tower type boiler and a storage medium. The method comprises the steps that the furnace bottom slag falling condition and the dry slag discharging transportation amount corresponding to a current soot blowing heating surface area are obtained in real time; according to the furnace bottom slag falling condition and the dry slag discharging transportation volume, the soot blowing effect of each heating surface area of the hearth is judged; controlling the soot blowing frequency of each heating surface area of the hearth according to the soot blowing effect of each heating surface area of the hearth and a pre-established soot blowing strategy; wherein the soot blowing strategy is obtained through fuzzy logic calculation according to a soot condition monitoring model, a soot blowing expert system and a soot blowing economic model. According to the embodiment of the invention, the boiler bottom slag falling condition and the slag discharging amount condition of the heating surface area are monitored in real time, so that fine control of boiler soot blowing is realized, and the problem that soot blowing of the heating surface area of a high-capacity and high-parameter combustion boiler is generally extensive is solved.

Systems and methods for heating a vehicle via a fuel operated heater are presented. In one example, the fuel operated heater heats a catalyst in an exhaust system of an internal combustion engine to reduce engine emissions. In another example, the fuel operated heater heats a particulate filter to purge soot from the particulate filter.

The utility model belongs to the technical field of tobacco production, and particularly relates to a device for cleaning a barrel-type film-covered filter element, which comprises a dust collection barrel, a cleaning air knife assembly, a catch wheel, a carrier roller and a power-assisted air knife assembly, and is connected with the barrel-type film-covered filter element cleaning assembly in a manner that the barrel-type film-covered filter element is sleeved outside the cleaning air knife assembly; the outer surface of the barrel-type membrane filter element is in rotary contact with the outer walls of the two carrier rollers respectively, and the end face of the blind cover of the barrel-type membrane filter element is in rotary contact with the rotary end of the catch wheel 3. The device disclosed by the utility model can shorten the time consumed by soot blowing and cleaning of a single filter element, greatly improve the cleaning efficiency, avoid the damage to the filter element or pollution and damage to the environment caused by a traditional soot blowing mode, save the energy consumption of compressed air used for soot blowing, and have important significance in popularization in the whole tobacco industry.

The invention relates to the technical field of physicochemical property detection, in particular to a full-automatic smoke dust detection method and a tester, and the method comprises the following steps: acquiring the concentration, temperature and relative humidity data of the inner wall of a flue, and preprocessing; dividing the temperature sequence into a plurality of temperature subsequences, and obtaining a concentration subsequence and a relative humidity subsequence of a corresponding bit sequence; obtaining a noise content index of a single temperature subsequence; obtaining the size of a filtering window of the filter in a single temperature sub-sequence; acquiring peak values and valley values of all the concentration subsequences and the relative humidity subsequences, and acquiring in-peak elements of all the peak values; acquiring a violent index of each peak value; acquiring a humidity irrelevant coefficient of a single concentration subsequence; acquiring a concentration correction factor of a single concentration subsequence; and correcting each concentration sub-sequence. According to the method, the concentration correction factor can be adaptively adjusted according to different process parameters, so that the detection precision of the smoke concentration is improved.

The invention relates to a boiler combustion adjusting system and method based on a slag state, and the system comprises an image data sensing system which is used for detecting the contour of a slag block according to image information, matching the three-dimensional dimension of the slag block and analyzing the ash component of the slag block, so as to generate image sensing data of the slag block according to the contour, the three-dimensional dimension and the ash component; the edge-cloud collaborative computing architecture is used for constructing a combustion big data platform and calculating the theoretical slag quantity under the current combustion working condition by utilizing the combustion big data platform; and the combustion optimization decision execution system is used for determining the abnormal condition of combustion of the hearth on the basis of the difference value between the theoretical slag falling amount and the actual slag falling amount, and adjusting at least one combustion parameter of the primary air volume, the rotating speed of the coal mill, the air distribution mode and the soot blowing system. According to the embodiment of the invention, a perception-analysis-execution integrated framework is constructed, and targeted strategy optimization is carried out on the combustion abnormal working condition based on parameters such as the slag falling amount, the slag block falling position and components.

The utility model relates to a smoke exhaust device for a kiln, and belongs to the technical field of kilns, the smoke exhaust device comprises two smoke exhaust pipes, a smoke exhaust pipe, a smoke exhaust pipe and a smoke exhaust pipe, one end of the smoke exhaust pipe is communicated with a smoke exhaust port of the kiln, and the other end of the smoke exhaust pipe is communicated with a smoke exhaust port of the kiln; the other end of the other smoke exhaust pipe is communicated with the outside; one end of the filtering assembly is connected with the other end of one smoke exhaust pipe, and the filtering assembly is used for filtering smoke dust; the filter assembly comprises a plurality of layers of filter screens, and the plurality of layers of filter screens slide back and forth relative to the smoke exhaust pipe; one end of the activated carbon adsorption assembly is connected with the filtering assembly, the other end of the activated carbon adsorption assembly is connected with one end of the other smoke exhaust pipe, and the activated carbon adsorption assembly is used for adsorbing harmful gas; and the collecting box is mounted on the filtering assembly and is used for collecting filtered waste residues. Smoke dust exhausted by the kiln enters the smoke exhaust pipe, is filtered by the filtering assembly and adsorbed by the activated carbon adsorption assembly and then is exhausted from the smoke exhaust pipe, and waste residues obtained after smoke dust filtering are collected through the collecting box.

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 a rake tobacco soot cleaning device for a tobacco elevator, and relates to the technical field of tobacco soot cleaning, and the rake tobacco soot cleaning device comprises a composite mechanism. According to the rake tobacco soot removing device for the tobacco elevator, through the design of the composite mechanism, the composite shell is aligned with the rake of the elevator, the draught fan is started, dust and residues are guided into the composite shell from the guiding mechanism, and therefore the effect of removing impurities is achieved; tobacco leaves are cut and smashed, the tobacco leaves are prevented from being wound in the equipment and affecting the ventilation effect, so that normal operation of the equipment is kept, the situation that the operation efficiency is affected is avoided, after a fan is stopped, chippings enter a collecting groove along the radian of a composite shell, the effect of collecting residues and dust is achieved, disassembly and cleaning are convenient, and the sufficient storage space of the equipment is guaranteed; and when the cutting mechanism rotates, the wiping mechanism is driven, and the inner wall of the equipment is rubbed through the wiping mechanism, so that the chipping cleaning effect is achieved.

Disclosed in the present invention is a methanol engine. The methanol engine comprises a methanol fuel system, a compression-ignition engine and an electronic control unit, wherein on the basis of a collected operating condition, the electronic control unit controls the methanol fuel system to inject fuel into a cylinder of the compression-ignition engine. The methanol engine is characterized by further comprising a temperature-controllable hot-surface combustion-supporting system in communication connection with the electronic control unit, wherein the hot-surface combustion-supporting system heats methanol sprayed into the cylinder and adjusts a heating temperature on the basis of the operating condition. The present invention has the advantages of performing autonomous temperature measurement and accurate temperature control, being unaffected by operating conditions and environmental changes, having a long service life, being less prone to aging, etc.; the present invention fills in the gaps of reliable ignition and running in stable operating conditions where existing methanol engines cannot use 100% of methanol fuel; moreover, 30-50% of fuel costs are reduced, and the heat efficiency reaches up to 47% or more; and the emission of a pure methanol automobile is free of soot, such that the emission of NOx is reduced by 45%. Further provided in the present invention is a control method for a methanol engine.

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 relates to the technical field of purification equipment, and discloses thermal power generation dedusting purification equipment which comprises a base, a shell is fixedly connected to the top of the base, a dust suction pipe fixedly communicates with the top of the shell, a suction fan is fixedly connected to the left side of the dust suction pipe, and a collection box is fixedly connected to the left side of the shell. According to the device, cigarette ash accumulated on the surface of the filter plate can be pushed into the collecting box, the good air permeability and filtering performance of the filter plate can be maintained, it is ensured that the device stably removes dust in smoke, and the device is convenient to use. The discharged gas reaches the environmental protection standard, the situation that the filtering effect of the filtering plate is reduced due to the fact that the cigarette ash is continuously accumulated on the surface of the filtering plate and gradually blocks pores of the filtering plate is avoided, centralized treatment of the cigarette ash is facilitated, and secondary pollution caused by scattering of the cigarette ash around equipment is avoided.

The invention discloses an air preheater anti-blocking method for reducing NH3 escape and SO3 content, and relates to the field of air preheater anti-blocking. Comprising the steps of step-by-step soot blowing optimization, dynamic soot blowing parameter adjustment, ammonia escape precise control, coal type bin-divided blending, combustion parameter optimization control and wall temperature increase treatment. According to the invention, step-by-step soot blowing strengthens removal of ash on the surface of the catalyst and reduces the ammonia escape concentration through fixed-point retention and dynamic adjustment; the ammonia escape detection system monitors and adjusts the ammonia spraying amount in real time to ensure that the ammonia escape concentration is lower than 3 ppm, and generation of NH4HSO4 is reduced; the SO3 generation amount is reduced through coal type bin-dividing blending and combustion parameter optimization control, and the blocking risk is restrained from the source; in the wall temperature increasing treatment, the wall temperature is increased to 210 DEG C or above in a circulating air bin heating and single-side temperature increasing mode, and coagulated materials are promoted to be gasified and fall off. According to the method, the problem of blockage of the air preheater is effectively solved, and the operation efficiency and stability of a boiler system are improved.

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.