2378 results about "Incineration" patented technology

Provided are equipment and methods for intelligent mobile medical waste disposal and flue gas purification, and the equipment includes a vehicle-mounted mobile platform and a skid-mounted standard container; where, the vehicle-mounted mobile platform is composed of a standard semi-trailer truck and a truck carriage base; the vehicle-mounted mobile platform is used for realizing functions of mobile transportation, cargo loading, fuel loading and unloading, power charging and discharging and network information transmission; the skid-mounted standard container is loaded above the truck carriage base of the vehicle-mounted mobile platform; and the skid-mounted standard container consists of a standard container and contents in the standard container; and the contents include: an intelligent collection and transportation feeding system, a medical waste pyrolysis incineration system, an incineration flue gas purification system, and an intelligent management and control system for medical waste disposal.

The invention belongs to the technical field of activated carbon preparation, and particularly discloses a preparation device and method for increasing the micropore proportion of activated carbon through segmented activation. A steam activation section and a carbon dioxide activation section are arranged in an activation furnace of the device, and a material channel penetrates through the steam activation section and the carbon dioxide activation section; and a through hole penetrating through the wall thickness is formed in the side wall of the material channel. Materials are subjected to primary activation through the steam activation section, so that more mesopores and macropores are quickly formed in the materials, and then the materials are subjected to secondary activation through the carbon dioxide activation section, so that micropores are further formed in the materials, the number and proportion of the micropores are increased, and the desulfurization performance of activated carbon is improved. According to the technical scheme, the pore structure of the activated carbon is regulated and controlled in a segmented activation mode, the micropore proportion is increased, and therefore the desulfurization performance of the activated carbon is improved, the technological process is simple, meanwhile, waste heat of flue gas obtained after incineration and purification can be recycled, energy is saved, efficiency is high, and industrial application is easy.

The invention relates to the field of hazardous waste treatment, in particular to a treatment method for mineralization and chlorine fixation of waste incineration fly ash and a waste incineration fly ash solidified body. The treatment method comprises the following steps that S1, the incineration fly ash is subjected to homogenization treatment, and homogenized fly ash is obtained; s2, the homogenized fly ash is detoxified through plasma treatment, dioxin on the surface of the homogenized fly ash is removed, and detoxified fly ash is obtained; and S3, stirring the detoxified fly ash, a mineralizing agent and water, carrying out shock excitation, carrying out pouring molding, standing, and demolding to obtain the waste incineration fly ash solidified body. According to the method, the incineration fly ash is dispersed through homogenization treatment, dioxin on the surface of the homogenized fly ash is removed through plasma treatment, finally, fly ash particles are tightly wrapped and cemented through cooperation of a mineralizing agent and water, a compact network structure is formed, the leaching toxicity of heavy metal is reduced, soluble chloride ions are chemically fixed in crystal lattices of minerals, and the leaching efficiency is improved. The incineration fly ash mineralization and synergistic chlorine fixation effects are realized.

The invention relates to the technical field of solid waste treatment and recycling, and discloses a waste incineration fly ash geopolymer composite material and a preparation method thereof, and the composite material is prepared from waste incineration fly ash, apatite minerals, zero-valent iron powder, persulfate and an alkali activator. The preparation method comprises the following steps: mixing the waste incineration fly ash, apatite minerals, zero-valent iron powder and persulfate to obtain composite powder; performing frequency conversion mechanochemical synergistic activation on the composite powder, wherein the activation process comprises a low-temperature activation stage and a high-energy pulse activation stage; and finally, mixing the activated powder with an alkali activator, pouring, molding and curing. According to the method, the reduction reaction and the oxidation reaction are driven step by step in the same system by regulating and controlling the mechanical energy input time sequence, the compatibility problem of a reducing agent and an oxidizing agent is solved, different types of persistent organic pollutants are synergistically degraded, meanwhile, heavy metal is stabilized, and the treatment effect is good. And the fly ash is recycled to prepare a geopolymer material with mechanical properties.

The invention discloses an adsorption treatment system for heavy metal particles in waste incineration flue gas, and relates to the field of flue gas treatment.The first adsorption structure comprises a plurality of adsorption assemblies which are arranged in parallel from top to bottom, each adsorption assembly comprises a first adsorption section and a second adsorption section which are communicated in sequence, and a plurality of honeycomb assemblies are arranged in each first adsorption section; the honeycomb assembly comprises a plurality of honeycomb frameworks, and amino silane layers are arranged on the honeycomb frameworks; the second adsorption section comprises an adsorption plate, and a carbon-doped boron nitride adsorption layer is arranged on the adsorption plate; the air outlet end of the second adsorption section is connected with the spiral air inlet assembly; flue gas enters the adsorption plate of the second adsorption section after passing through the honeycomb framework on the first adsorption section, and the flue gas enters the spiral gas inlet assembly of the second adsorption structure through the gas outlet end of the second adsorption section. According to the system, multi-stage treatment is carried out through an amino silane layer on a honeycomb framework of the first adsorption section, a carbon-doped boron nitride adsorption layer of the second adsorption section and spraying liquid on a second adsorption structure.

The invention provides a petroleum coke drying and calcining system, which belongs to the technical field of tar treatment and comprises a feeding bin, a waste heat rotary drying furnace, a calcining furnace, a slag cooler, a receiving bin and a tail gas incineration chamber connected with the calcining furnace. The green petroleum coke raw material is fed into a waste heat rotary drying furnace to be dried; a drying furnace water vapor outlet, a drying furnace smoke outlet and a drying furnace waste heat tail gas inlet are formed in the waste heat rotary drying furnace; high-temperature tail gas generated by calcining and volatilizing materials in the calcining furnace enters the tail gas incineration chamber through the calcining furnace tail gas volatilization opening, and high-temperature tail gas generated by mixed combustion of the high-temperature tail gas and fuel gas entering the tail gas incineration chamber enters the calcining furnace and reversely flows with the materials in the calcining furnace to calcine the materials in the calcining furnace, so that primary utilization of the tail gas is realized. The high-temperature tail gas is calcined to absorb heat to form low-temperature tail gas, and the low-temperature tail gas enters the waste heat rotary drying furnace to dry materials, so that secondary utilization of the tail gas is realized, and the problems of low integration degree, high production cost and low treatment efficiency are solved.

The invention discloses a fan frequency control method and device, electronic equipment and a computer medium, and belongs to the technical field of automatic incineration. According to the specific scheme, the method comprises the steps of obtaining a parameter sequence value of a control parameter of the automatic combustion control system in a historical period, a current flow value of main steam flow, a flow set value of the main steam flow, a real-time value of steam pocket pressure, a hearth material layer pressure difference value and a control variable sequence value in the historical period; calculating a flow predicted value of the main steam flow; calculating flow deviation; calculating the frequency of an intermediate fan; the steam drum fan frequency is calculated; the flow fan frequency is obtained; calculating a primary frequency given value; and the primary frequency set value is dynamically corrected, and the target primary fan frequency of the primary fan is obtained and adopted to control the primary fan. The response speed of the automatic combustion control system can be effectively improved, so that the control of the frequency of the extension set can be closer to the actual production condition.

The invention relates to the technical field of solid waste treatment, in particular to a cementing material as well as a preparation method and application thereof. The invention provides a preparation method of a cementing material, which comprises the following steps: S1, adding water into waste incineration fly ash, electrolytic manganese residue and carbide slag, and carrying out mechanical activation to obtain mixed slurry; s2, after the mixed slurry is subjected to pouring forming, curing is conducted, and a cementing material is obtained; the doping amount of the carbide slag accounts for 5-10 wt% of the total mass of the waste incineration fly ash, the electrolytic manganese slag and the carbide slag solid. According to the method, the waste incineration fly ash, the electrolytic manganese residues and the carbide slag are subjected to mechanical activation and synergistic treatment, self-cementation solidification is achieved in an alkaline environment provided by the carbide slag by utilizing the complementary effect of potential gelation activity of aluminosilicate in the electrolytic manganese residues and calcium-rich substances in the waste incineration fly ash, traditional excitants such as cement and lime do not need to be additionally added, and the cost is reduced. The dependence on additional raw materials is obviously reduced, and an effective solution is provided for recycling of a large amount of solid wastes.

The invention discloses a flue gas waste heat recovery device and method for a garbage incinerator. Relates to the technical field of waste incineration treatment and comprises a waste heat recovery box, a heat exchange pipe set driven by a main control gear, a transfer gear and a fixed gear ring is arranged in the waste heat recovery box, and heat exchange pipes conduct revolution and autorotation in smoke at the same time to enhance heat exchange. Accumulated dust on the outer surface of the heat exchange tube is removed through the rotating treatment scraper and the removing brush cylinder, and the reciprocating treatment kettle is used for knocking the tube wall of the heat exchange tube to shake off the dust; the flow speed and the flow direction of flue gas can be intelligently adjusted through an angle-adjustable speed adjusting plate on a treatment scraper, so that the device is suitable for different working conditions; the device realizes efficient and stable recovery of flue gas waste heat, can keep a heat exchange surface clean on line, and is high in adaptability.

The invention discloses a treatment system and method for waste incineration fly ash washing liquid cooperating with flue gas purification, and the system comprises a semi-dry desulfurization tower, a dust remover, an ash silo, a washing tank, a buffer tank, a water supply preheater and a wet washing tower which are connected with a main flue of an incineration plant, the method comprises the following steps: transferring waste incineration fly ash collected in the system into the water washing tank, and adding water for washing to obtain water washing liquid and desalted fly ash; the method comprises the following steps: spraying fly ash water washing liquid by using a wet washing tower, recovering tail flue gas waste heat, deeply removing residual acid gas in flue gas, concentrating and reducing the water washing liquid, and controlling the spraying amount to adjust the concentration ratio so as to realize the separation and solid-liquid separation of chlorine salt; introducing the concentrated water washing liquid into a semi-dry desulfurization tower, atomizing the water washing liquid into fine liquid drops by using a rotary atomizer, contacting the fine liquid drops with hot flue gas, evaporating the fine liquid drops to dryness, and absorbing acid gas in the flue gas at the same time, thereby realizing zero emission of the water washing liquid and cooperating with flue gas purification. According to the invention, the problem of high energy consumption of fly ash washing liquid treatment is solved, and the resource utilization rate of the washing liquid is improved.

The invention discloses a fluorine-containing organic matter wastewater treatment method, which comprises: S1, concentrating the fluorine-containing organic matter content in wastewater from 0.01-0.3 wt% to 0.3-3 wt% to obtain primary concentrated wastewater; s2, carrying out centrifugal separation by adopting hydrophilic varnished cloth, and further concentrating the content of fluorine-containing organic matters in the primary concentrated wastewater to 10-30wt% to obtain high-concentration concentrated wastewater; s3, performing high-temperature plasma cracking and incineration on the high-concentration concentrated wastewater in a plasma cracking and incineration furnace; and S4, tail gas discharged after incineration is cooled and absorbed by alkali liquor, inorganic fluoride in the tail gas is recycled, and then the tail gas is discharged. According to the treatment method, the technical bottleneck that the low-concentration fluorine-containing organic matter wastewater is difficult to directly treat by an existing plasma incineration technology is solved, operation is easy and convenient, the treatment efficiency is high, environment friendliness is achieved, and an innovative technical path is provided for harmless treatment of the low-concentration fluorine-containing organic matter wastewater and high-added-value resource recycling.

The invention discloses a waste incineration flue gas treatment device and relates to the technical field of flue gas treatment, the waste incineration flue gas treatment device comprises a dust remover and a filtering mechanism installed in the dust remover, the filtering mechanism comprises a perforated plate, bag cages and filtering bags, each bag cage is sleeved with the corresponding filtering bag, an air inlet pipe is arranged at the top of each bag cage, a flow guide pipe is connected to the lower portion of each air inlet pipe, a plurality of air nozzles are sequentially arranged on the flow guide pipe in the axial direction; a plurality of fan blade sets are arranged in the bag cage, each fan blade set comprises a plurality of fan blades rotationally installed in the radial direction of the bag cage, when the fan blades of the fan blade sets rotate to the horizontal state, the interior of the bag cage is divided into a plurality of cavities, and the air nozzles are correspondingly located in the cavities respectively. During dust removal, the filter bag is divided into three independent cavities, and the three independent cavities are matched with the axial air nozzle to perform segmented high-pressure injection, so that airflow attenuation is avoided, and uniform dust removal is ensured; and the transverse framework ring generates longitudinal jolting along with the expansion-retraction of the filter bag, so that a dust layer is peeled off in a large piece and block form.

The invention discloses a solid waste water content prediction system and method based on an infrared thermal imager. The temperature field of the solid waste on the conveyor belt in the natural convection and forced convection moisture evaporation process is monitored and compared in real time through the thermal infrared imager, and the moisture content of the solid waste can be accurately predicted in combination with data processing, environmental parameter correction and prediction of a regression equation. Compared with a traditional sampling detection method, the method has the advantages of being high in real-time performance, non-contact, simple in equipment, good in economical efficiency and the like, can adapt to a complex industrial field environment, and provides a new technical means for intelligent and refined control over waste incineration. The system is simple in structure, high in reliability, good in detection precision and capable of achieving real-time prediction of the water content of the solid waste entering the furnace.

The invention relates to the technical field of bag-type dust removers, in particular to a bag-type dust remover in a hazardous waste incineration system, the bag-type dust remover comprises a shell and a filter bag assembly, the shell is provided with two air chambers which are communicated with each other, and an air inlet and an air outlet which respectively correspond to the positions of the two air chambers; the filter bag assembly is arranged at the communicating part of the two air chambers and used for filtering air, the filter bag assembly comprises a filter bag and a screen frame used for supporting the filter bag, the screen frame is provided with a first end part and an annular side part composed of a plurality of elastic supporting strips, and the annular side part is provided with a first opening and a second opening which are opposite to each other; the first opening is fixed at the communicating part of the two air chambers, the second opening is fixedly provided with a first end part, the filter bag is sleeved outside the annular side part, and two ends of the filter bag are respectively fixed with the first end part and the communicating part. The inner side of the filter bag can be effectively supported during flue gas purification, and when caked dust is attached to the outer side of the filter bag, the caked dust on the outer side of the filter bag can be rapidly removed.

The invention relates to a waste incineration fly ash artificial aggregate and a preparation method thereof. The method comprises the following steps: uniformly mixing the waste incineration fly ash, cement and fly ash, then adding water, and uniformly stirring to obtain an aggregate mixture; placing the aggregate mixture in a mold for compression molding to obtain a molded product; the compression molding comprises the following steps: pre-pressing for 10-20 seconds at 6-10 MPa, then pressing for 20-40 seconds at a medium pressure of 12-18 MPa, then uniformly increasing the pressure to a high pressure of 22-28 MPa, and maintaining the pressure for 4-6 seconds at the high pressure of 22-28 MPa; and performing standard curing on the molded product, demolding to obtain a demolded sample, and sequentially performing crushing treatment and steam curing to obtain the waste incineration fly ash artificial aggregate. The prepared waste incineration fly ash artificial aggregate is low in crushing value, low in water absorption rate, high in strength and high in heavy metal curing capacity, a feasible path is provided for resource utilization of waste incineration fly ash, and the waste incineration fly ash artificial aggregate has important environmental protection value and economic value.

The invention discloses a multipurpose comprehensive utilization system for flue gas of a garbage incinerator, and relates to the technical field of solid waste treatment and resource recovery. After steam generated by a waste heat boiler drives a generator set, medium-temperature and low-temperature flue gas is sequentially guided into a sludge drying system for heat energy coupling utilization; in the purification section, a synergistic removal process is adopted, and trapped pollutants are converted into ammonium sulfate fertilizer raw materials while acid gas and dioxin are efficiently removed; finally, the fly ash rich in heavy metal is guided into a melting system, and inert building material aggregate is formed through high-temperature vitrification. According to the integrated system, the limitation of traditional quality-divided treatment is broken through, the three targets of deep recovery of flue gas waste heat, collaborative resource conversion of pollutants and safe treatment of fly ash are achieved, the operation cost is greatly reduced, additional economic values are created, and a win-win comprehensive solution of environmental benefits and economic benefits is provided for a waste incineration plant.

The invention discloses industrial solid waste treatment and resource utilization, and particularly relates to a washing-free sintering resource treatment method for household garbage incineration fly ash. Fly ash which is not washed with water, a silicon-aluminum hardening and tempering agent and solid fuel are mixed according to a specific proportion, granulated and sintered, and dioxin control and heavy metal directional migration are achieved through the temperature gradient of a material layer. According to the invention, low-temperature (1t, 150 DEG C) and low-pollution flue gas is shunted for common purification according to the temperature and component difference of flue gas at each sintering section, and dust (product dust) is returned for utilization; high-temperature (more than or equal to 150 DEG C) and high-pollution flue gas is divided for quenching and activated carbon deep purification, and dust (heavy metal concentrated ash) of the flue gas is sold for metallurgy. According to the invention, the fly ash washing link is thoroughly omitted, and the consumption of the adsorbent and the operation cost are greatly reduced while ultra-low emission is ensured through a flue gas quality-dividing and flow-dividing technology, so that low-cost, thorough harmlessness and high-value recycling of the fly ash are realized.

The invention discloses plastic pipeline particles prepared from waste incineration fly ash and a preparation method of the plastic pipeline particles. The particles are prepared from the following raw materials in parts by weight: 5-25 parts of PE, 20-100 parts of superfine calcium carbonate, 1-5 parts of needle-like wollastonite, 1-5 parts of chopped carbon fibers, 1-15 parts of rutile type titanium dioxide, 10-75 parts of waste incineration fly ash, 1-20 parts of paraffin, 0.2-5 parts of a coupling agent and 0.5-10 parts of a dispersing agent. The preparation method comprises the following steps: 1, cleaning and airing the fly ash, and crushing and grinding the fly ash into 600-1250-mesh powder P; 2, mixing the powder P with inorganic fillers such as superfine calcium carbonate at a high speed of 100-130 DEG C to obtain a composite filler M; 3, mixing and modifying the filler M with a dispersing agent and a coupling agent at a high speed to obtain modified powder MP; 4, MP, PE and paraffin are mixed and plasticized at a high speed, and single-screw extrusion granulation is performed. The particles achieve fly ash recycling and are excellent in processability, the prepared PE pipeline is high in strength, resistant to corrosion and long in service life and can be used as an industrial or municipal sewage pipeline, and the preparation method is convenient, fast and efficient.

The invention discloses an efficient pollution-free treatment method for municipal waste incineration fly ash, and relates to the technical field of waste resource utilization and environmental protection. Comprising the following steps: S1, adding the garbage fly ash into a hydrochloric acid solution, carrying out wet grinding, and carrying out centrifugal separation to obtain heavy metal filtrate and heavy metal-removed fly ash; washing the heavy metal-removed fly ash with clear water to obtain a washing solution; mixing the washing liquid with the heavy metal filtrate to obtain a heavy metal solution; s2, adding a complexing agent into the heavy metal solution, stirring and mixing, standing overnight, performing centrifugal separation to obtain a heavy metal removal solution and a heavy metal complex, and adjusting the pH value of the heavy metal removal solution to be neutral to complete heavy metal removal treatment; s3, uniformly mixing the washed heavy metal-removed fly ash and a catalyst, performing low-temperature pyrolysis treatment, sieving and separating to obtain dioxin-removed fly ash, and completing dioxin removal treatment; and S4, the heavy metal removal solution and the heavy metal complex are treated, and garbage fly ash treatment is completed.

The utility model discloses a high-wind-resistance reverse-pushing type garbage incinerator fire grate segment and a garbage incinerator. The high-wind-resistance reverse-pushing type garbage incinerator fire grate segment comprises a movable fire grate segment, the movable fire grate segment comprises a movable fire grate body, a movable fire grate protrusion arranged at one end of the front face of the movable fire grate body, a movable fire grate air groove formed in the back face of the movable fire grate body, a movable fire grate protruding block arranged at the head of the back face of the movable fire grate body, and a movable fire grate tail hook arranged on the back face of the movable fire grate body and oppositely arranged at the tail end. The movable fire grate reinforcing rib plates are arranged on the two sides of the back face of the movable fire grate body, and the movable fire grate ventilation holes are formed in the side portion of the movable fire grate body. According to the high-wind-resistance reverse-pushing type garbage incinerator fire grate segment and the garbage incinerator, the movable fire grate air grooves of the movable fire grate segment are formed in the side portion, and the ventilation holes of the fire grate segment are formed in the side edge, so that wind pressure can be kept, the penetrating power of primary air is enhanced, blocking is not likely to happen, and the performance of the fire grate segment is improved; the movable fire grate protrusions on the movable fire grate segments can well turn over and stir garbage during reciprocating motion, and combustion of the garbage can be better promoted.

This invention relates to a detoxification method for simultaneously removing dioxins and heavy metals from waste incineration fly ash. The method includes fly ash pretreatment and simultaneous removal of dioxins and heavy metals. First, sodium and potassium salts are removed from the fly ash by immersion washing to avoid reducing the ability of the sintered products formed during high-temperature sintering to solidify heavy metals. Then, the pretreated fly ash is separated to obtain a solid phase, which is mixed with magnesium and / or calcium salts and subjected to high-temperature roasting. This allows the chlorine from the decomposition of dioxins in the fly ash to react with the heavy metals to form gaseous heavy metal chlorides, thus removing the heavy metals from the fly ash. During the high-temperature roasting process, the magnesium and / or calcium salts react with the ash in the fly ash to form calcium silicate and / or magnesium silicate, enhancing the solidification ability of the internal lattice of the fly ash sintered products. After detoxification treatment of waste incineration fly ash using this method, no heavy metals Hg, Pb, Cd, Cu, and Ni were detected in the fly ash leachate, significantly reducing the leaching risk of residual heavy metals in the fly ash.

To provide a phosphate-containing solid and a method for producing the same, with the use of sewage sludge incineration ash as a raw material, which has a high proportion of citrate-soluble phosphoric acid relative to a total phosphoric acid, contains a low amount of free phosphate, and can be effectively utilized as a phosphate fertilizer.SOLUTION: A phosphate-containing solid is produced by reacting sewage sludge incineration ash and sulfuric acid under non-aqueous conditions to generate water-soluble or citrate-soluble phosphates,in which the quantities of the aforementioned sewage sludge incineration ash and sulfuric acid are controlled during this generation process to achieve a citrate-soluble phosphate ratio relative to a total phosphoric acid of the phosphate to be produced of 0.7 mass ratio or higher, and a free phosphate content of 8 mass% or less, and a manufacturing method thereof is provided.SELECTED DRAWING: Figure 1

The invention discloses a purification and recovery process for cooperatively treating fly ash and waste incineration flue gas. The purification and recovery process comprises the following steps that S1, the waste incineration flue gas is subjected to cooling and heat energy recovery; s2, spraying activated carbon; s3, fly ash is captured; s4, spraying water to remove HCl, and collecting hydrochloric acid wastewater; s5, spraying alkali liquor to remove SO2, and collecting deacidified waste liquid; s6, the fly ash is subjected to acid pickling treatment with hydrochloric acid wastewater, and acid-pickled mud cakes are obtained; s7, carrying out water washing treatment on the acid-washed mud cake to obtain a water-washed mud cake; s8, treating the wastewater to obtain sodium chloride and potassium chloride; and S9, the washed mud cake is mixed with the gelling and curing base material, the mixture is cured and mixed with fresh garbage to be incinerated, and obtained ash residues are directly used as building materials. The production of fly ash is reduced from the source, the treatment cost of the fly ash is low, resource utilization is realized, and the problems of heavy metals and dioxin are solved; and heat energy is recycled, the heat energy utilization efficiency is improved, and the economical efficiency is enhanced.

The invention relates to the technical field of sludge treatment, in particular to a drying device for co-processing sludge in a household garbage incineration plant. Comprising a machine body, a hopper is mounted at the upper end of the machine cover; a discharging opening is formed in the side wall of the machine body; the interior of the machine body is rotationally connected with a mounting column; according to the invention, the screw rod is arranged; the screw rod can drive the three mounting columns which are in spiral transmission connection with the screw rod to ascend, and as the screw pitch differences of the adjacent columns are equal, the relative displacement increment in unit time is constant, so that the distances among the three mounting columns are uniformly increased along with the ascending process, and the crushing effect of sludge with relatively high water content is improved; and when the water content of the sludge is low, the screw rod is controlled to drive the mounting columns to be close to each other, the distance between the drying discs is reduced, the sludge with the low water content is prevented from being excessively pulverized, and the drying efficiency and the drying effect of the sludge with different humidity are effectively improved.

The catkin collecting and incinerating device comprises a box body, an air suction head is arranged on the box body, the air outlet end of the air suction head penetrates through the box body and is connected with the air inlet end of an air pipe, a blocking net is arranged at the joint of the air suction head and the air inlet end of the air pipe, an electric arc generator is installed on the blocking net, and an exhaust fan is installed between an air outlet of an exhaust pipe on the side portion of the air pipe and an air outlet of the box body. The air outlet end of the air pipe extends downwards into the water tank dust collecting device, and the water tank dust collecting device is installed at the bottom in the box body. The fan is used for generating suction force, so that floating or accumulated catkins can be quickly sucked into the device like a dust collector, and high-efficiency and centralized collection is realized; willow catkins are rapidly removed from public places, and drift of allergens and contact with human bodies are directly reduced from the source; collected catkins are intensively incinerated in a closed combustion space through an arc generator, the risk of open-air random ignition is avoided through controllable incineration, and the combustion process is limited within a safe range.

The application discloses a preparation method of layered double hydroxide based on waste incineration fly ash, and comprises the following steps: S1, waste incineration fly ash and leaching solution are added into a mixing container according to a liquid-solid ratio (3-15):1, and leaching is carried out after sufficient mixing, and then a filtrate is obtained after filtration; S2, an aluminum-containing reagent is added into the filtrate obtained in S1, so that the ratio of divalent cations to trivalent cations in the solution is (1.5-2.5):1, the pH range of the solution is adjusted to 10-12, and a mixed suspension is obtained after sufficient stirring; S3, the mixed suspension obtained in S2 is poured into a hydrothermal reaction kettle, and is aged and crystallized through hydrothermal reaction; and S4, the mixed solution after crystallization and aging in S3 is filtered, washed with water, and dried, so that the obtained solid is the layered double hydroxide. The method has the advantages of simple process, easy realization, low requirement on equipment, and universality, can be used for synergistic treatment of other aluminum-containing waste liquid, and the product can be used for heavy metal adsorption, so that the waste incineration fly ash can be fully utilized.

The invention belongs to the technical field of dangerous solid waste treatment, and relates to a cascade deep detoxification method and system for waste incineration fly ash. Comprising the following steps: carrying out natural carbonation pretreatment on the fly ash to stabilize the pH value of the fly ash to be about neutral so as to obtain pretreated fly ash; carrying out primary washing on the pretreated fly ash by adopting an EDTA (Ethylene Diamine Tetraacetic Acid) solution, and carrying out solid-liquid separation to obtain primary washing slag; wherein the residual heavy metals in the first-stage washing slag obtained by the first-stage washing are mainly distributed in a weak acid extraction state; and carrying out second-stage washing on the first-stage washing slag by adopting an acetic acid solution. The method provided by the invention synergistically realizes deep and efficient removal of heavy metals in fly ash, and the final product meets safe disposal or resource utilization standards.

The invention discloses a membrane separation and concentration system for treating solid waste incineration fly ash, relates to the technical field of membrane separation, and aims to solve the technical problem that a concentrated solution is difficult to form a high-concentration state due to reduction of membrane flux caused by thickening of a filter cake layer. An annular filter membrane is installed on the rotating frame, a concentration chamber is formed in an inner cavity of the annular filter membrane, a supporting pipe body is arranged in the concentration chamber, a liquid inlet channel is arranged in an inner cavity of the supporting pipe body, and a plurality of gathering plates and collecting assemblies are further arranged in the concentration chamber. The device has the advantages that a stable filter cake layer formed on the surface of the membrane during static filtration is broken, membrane hole blockage caused by continuous deposition of impurities is avoided, a concentrated solution can be in full contact with a new filter hole area, which does not participate in preliminary filtration, of the annular filter membrane, the filter area of the filter membrane is utilized to the maximum extent, and the filter efficiency and the concentration multiple are improved.

The invention discloses a detoxification system for washed household garbage incineration fly ash, and belongs to the technical field of hazardous waste treatment. Comprising a fly ash temporary-storage tempering unit, a low-temperature anti-sticking drying unit, a temperature-control anti-scaling pyrolysis unit and a gas-solid separation unit which are connected in sequence. The fly ash caching and tempering unit is provided with a calcium salt content online detector and an anti-caking agent adding device, so that accurate tempering is realized; the low-temperature anti-sticking drying unit realizes low-temperature anti-sticking drying; the temperature-control anti-scaling pyrolysis unit adopts an indirect heating type rotary kiln and is provided with a plasma catalysis assembly, so that medium-temperature degradation of dioxin and scaling prevention are realized; the gas-solid separation unit comprises an efficient cyclone separator, a high-temperature ceramic dust remover and a water-cooled conveyor, and efficient separation and cooling are achieved. Through systematic structural design and integration, the technical problems that the calcium salt-containing fly ash after water washing is prone to caking and scaling in the treatment process, and dioxin degradation is not thorough are effectively solved.

The invention discloses an intelligent integrated municipal sludge whole-process treatment system, which relates to the technical field of municipal environmental protection engineering, comprises a concentration unit, a conditioning unit, a dehydration unit, a drying unit, an incineration unit and a tail gas treatment unit, and is characterized by further comprising a whole-process digital twinborn body module, a whole-process digital twinborn body module and a whole-process digital twinborn body module, and the data fusion unit is connected with the sensor network of each processing unit through a data bus and is used for fusing material characteristics, equipment states and environment parameter data. According to the intelligent integrated municipal sludge whole-process treatment system, the problems of energy efficiency loss and effect fluctuation caused by independent operation of each unit of the sludge treatment system are solved. When the sludge property is suddenly changed, the system can automatically trigger a cross-unit emergency linkage instruction chain to realize dynamic matching of upstream and downstream parameters; and meanwhile, by means of dual verification of digital twinborn rehearsal and a physical equation, it is ensured that an optimization instruction meets the equipment safety boundary and environmental protection requirements, and the stability and reliability of whole-process operation are effectively improved.