278 results about "Fine particulate" patented technology

The invention provides a sand and dust scene atmosphere pollution source identification method and system, computer equipment and a medium, and belongs to the field of environmental pollution analys.The method comprises the steps that the types of volatile organic compounds and the types of fine particulate matter PM2.5 in the atmosphere of a sand and dust scene to be identified in a target area are identified, and the concentration of the volatile organic compounds and the concentration of the fine particulate matter PM2.5 are measured; carrying out mineral dust proportion calculation on the types of the fine particulate matters PM2.5 and the concentration of the fine particulate matters PM2.5 to obtain a mineral dust quantification result, and determining a dust source contribution weight according to the active metal increment in the mineral dust quantification result; and performing positive matrix decomposition prediction on the types of the volatile organic compounds, the concentration of the volatile organic compounds, the types of the fine particulate matters PM2.5 and the concentration of the fine particulate matters PM2.5 based on the dust source contribution weight, and determining the pollution source contribution proportion of the atmosphere of the sand and dust scene to be identified. According to the method, the accuracy of pollution source identification is guaranteed, and a basic guarantee is provided for subsequent pollution source treatment.

The invention provides an atmospheric fine particulate matter and ozone optimization control method, and relates to the technical field of environmental control, and the method comprises the steps: collecting the mass concentration of PM2.5 and O3 of a target city, an emission reduction policy and precursor emission data of each pollution source; dividing the target city into a VOCs control area and a VOCs and NOx cooperative control area according to the ozone sensitivity; based on an EKMA curve, obtaining an optimal emission reduction proportion of a precursor of each control region; calculating the control potential of different pollution sources VOCs and NOx of the target city, and establishing an O3 concentration optimization control constraint equation set; calculating PM2.5 sensitivities of different areas of the target city to the receptor points, dividing the target city into a plurality of grade sensitive areas, and establishing a PM2.5 optimization control constraint equation set; and solving the equation set to obtain an O3 and PM2.5 optimization emission reduction scheme. According to the invention, a refined PM2.5 and O3 pollution emission reduction scheme is provided from the city scale.

A method of sealing a lost circulation zone may include: circulating a lost circulation treatment composition to a subterranean formation comprising a lost circulation zone, wherein the lost circulation treatment composition comprises: a carrier fluid; a polymeric additive; a fine particulate component; and a composite particulate component containing size and shape selected materials; wherein the cost circulation treatment composition has the property of allowing full volume passage through a 15,000 micron fracture width; flowing the lost circulation treatment composition into the lost circulation zone; and plugging the lost circulation zone using the lost circulation treatment composition.

The invention provides a method for estimating atmospheric heavy metal environmental capacity. The method comprises the following steps: acquiring basic topographic and meteorological data of a to-be-estimated target area; determining an atmospheric heavy metal emission scheme; obtaining the day-by-day grid-by-grid heavy metal concentration of the target area in the simulation year by adopting an air quality model; and calculating to obtain a non-carcinogenic risk quotient value and a carcinogenic risk quotient value, comparing with 1 to judge whether an atmospheric heavy metal emission scheme needs to be adjusted, and obtaining the atmospheric heavy metal environmental capacity of the emission source arrangement position until the non-carcinogenic risk quotient value or the carcinogenic risk quotient value is less than 1. According to the method, pollutant types are expanded from fine particulate matters and precursors thereof to atmospheric heavy metals, constraint based on pollutant concentration is promoted to constraint of crowd health, and a reasonable environmental capacity result is obtained by utilizing iterative calculation. According to the invention, the goal of atmospheric environmental pollution prevention and control work is improved from improvement of air quality to reduction of crowd health risks, and technical support is provided for cooperative emission reduction work of various pollutants.

The invention discloses an atmospheric microparticulate monitoring device and method based on multi-mode sensing, and relates to the technical field of ecological environment monitoring. The device comprises a data acquisition system used for carrying out real-time sample acquisition and signal conversion on conventional pollution factors and meteorological parameters in air; the data analysis system is used for carrying out concentration analysis and early warning on the signals converted by the data acquisition system; the error evaluation system is used for performing error evaluation on the key indexes of the data acquisition system according to the acquired samples; and the data transmission system is used for carrying out cross-regional transmission on the sample acquired by the data acquisition system and the analysis result according to a sensitivity quantity algorithm based on an anonymous model. Real-time monitoring of atmospheric micro-particles with high accuracy and strong applicability is realized based on atmospheric monitoring standards independent of a meteorological monitoring framework, and reasonable adjustment of device parameters is realized by cooperation of the atomic fluorescence spectrometer and the enrichment sampling and pretreatment unit.

The utility model discloses PCB micro-etching liquid cyclic regeneration equipment which comprises a main box body, the upper part of the main box body is fixedly connected with a shower box body, the right side of the main box body is fixedly connected with a lengthened box body, the front side of the shower box body is connected with a first filtering drawer through a bolt, and the front side of the lengthened box body is connected with a second filtering drawer through a bolt. An evaporative crystallization metal plate is rotatably connected to the interior of the main box body through a hollow rotating shaft, the hollow rotating shaft penetrates through the interior of the evaporative crystallization metal plate and is welded to the evaporative crystallization metal plate, and a heating rod is fixedly connected to the interior of the hollow rotating shaft. According to the device, valuable metal components in the micro-etching liquid are effectively separated and recycled by adopting the evaporative crystallization metal plate and the heating rod, so that the consumption of raw materials is reduced, the resource utilization rate is improved, and meanwhile, the environmental pollution is also reduced. By arranging the second filtering drawer, fine particle impurities are further removed in the micro-etching liquid cyclic regeneration process, it is ensured that the regenerated micro-etching liquid reaches the use standard, and the PCB machining quality and efficiency are improved.

The application discloses a flue gas purification device and method for thermal power plants, which comprises a combined installation cylinder, one end of the combined installation cylinder is provided with a positioning installation sleeve, and the other end of the combined installation cylinder is provided with a positioning installation cylinder, further comprising: a threshold capture leading-out mechanism and a sequential processing mechanism matched with the threshold capture leading-out mechanism, which can be quickly combined and installed according to different purification requirements, realize multi-level purification operation, and have transportation convenience and maintainability; can synchronously realize liquefaction promotion of fine particulate matter capture effect, and automatically periodically clean and process captured substances through a threshold mechanism, while cooperating with passive centrifugal oscillation demolding, so that the substance capture capacity of the device is stably maintained for a long time, so as to improve the efficiency and service life of the device; can improve the particle adsorption effect through the heat absorbed by condensation, and optimize the acid-base washing structure, further improve the purification level of the device.

The invention provides a regional purification quality evaluation method and device of an air purification unit. According to the method, target area division information and concentration data of pollutants such as fine particulate matters, carbon dioxide and volatile organic compounds are acquired, multi-pollutant concentration fusion analysis is performed based on a preset air quality standard, and a fusion concentration index reflecting spatial distribution characteristics is generated. And extracting the pollution accumulation rate of each partition according to the time change trend of the index, identifying the pollution propagation direction between adjacent partitions, and generating a regional purification quality evaluation result by cooperatively associating the two. And further combining the partition purification urgency degree and the pollution diffusion intensity in the evaluation result to formulate a regional collaborative operation strategy, and dynamically adjusting the air speed gear and the operation parameter configuration of the air purification unit corresponding to each partition. According to the technical scheme provided by the invention, the efficiency and precision of regional purification quality evaluation can be improved.

The present invention relates to the technical field of river and lake sediment treatment, and discloses a spiral propulsion type underwater elution robot for river and lake sediment, including a spiral propulsion power system for precise steering and movement in underwater soft foundation silt. The spiral propeller has the advantages of strong terrain adaptability, large traveling driving force, precise direction control, etc.; the sediment elution robot can achieve the suction separation of fine particulate matter and the in-situ covering of large inorganic sediment particles on the bottom of rivers and lakes through gravity separation in the sediment elution chamber and regulation of the water outlet flow rate, improving the sufficiency of sediment particle coverage at the mud-water interface. Using the underwater elution robot to carry out river and lake sediment treatment has the advantages of less sludge generation, high pollutant separation rate, low treatment cost, etc. After dehydration, the eluted silt can be used for the ecological resource utilization of sediment. The present invention is applicable to the in-situ treatment of sediment in urban rivers, lakes and reservoirs and the restoration of submerged plant habitats.

The clamping type mechanical arm capable of preventing particulate matter pollution comprises a finger piece, a telescopic device, a palm box and a double-push-rod assembly, the finger piece is connected to the front end of the palm box, a first limiting part is arranged at the fingertip of the finger piece, stroke openings are formed in the side walls of the two sides of the palm box, and a second limiting part is arranged at the tail end of the palm box. The telescopic device is arranged in the palm box, and the linkage end of the double-push-rod assembly is arranged in the palm box and connected with the telescopic end of the telescopic device, so that the double-push-rod assembly is limited by the stroke distance of the stroke opening to conduct telescopic displacement, and the clamping distance between the clamping end of the double-push-rod assembly and the first limiting part of the finger piece is adjusted. Therefore, fine particles in the manipulator are prevented from overflowing to pollute wafers.

The utility model provides a fresh water aquaculture particulate matter rapid removal system which comprises a multi-stage separator, a microfilter, an ozone air floatation system, a foam separator and a remote control terminal which are connected in sequence, and the multi-stage separator, the microfilter, the ozone air floatation system and the foam separator are all connected with the remote control terminal. Breeding tail water in the breeding pond is sequentially purified stage by stage through a multi-stage separator, a microfilter, a steam-water mixing tank and a foam separator, and then is conveyed to the ecological pond for up-to-standard discharge; wherein the multi-stage separator is provided with a vertical flow precipitator and a rotational flow precipitator which are connected in sequence, and the microstrainer is connected with the steam-water mixing tank through an ultraviolet sterilization pipe; the ozone air flotation system comprises an air compressor, an air dryer, an ozone generator and a steam-water mixing tank which are connected in sequence; the steam-water mixing tank is connected between the micro-filter and the foam separator. The problem that fine particles in freshwater aquaculture are difficult to remove through air flotation is solved, and meanwhile, the occupied area is small.

The invention discloses a multi-stage filtering structure of an ionic wind air purifier, and relates to the technical field of air filtering equipment. The air purifier comprises a purifier body, a supporting frame is arranged in the purifier body, and an ionic wind dust collection polar plate is installed in the supporting frame; a plurality of layers of filtering assemblies are arranged in the supporting frame. By adopting a multi-layer composite structure composed of the primary filter layer, the high-pressure ionization area, the ozone catalytic layer and the dust collection area, efficient cooperative treatment of different pollutants in air is achieved, air flow firstly passes through the primary filter layer to intercept large-particle dust, then fine particles are electrified and partially sterilized in the high-pressure ionization area, and therefore the air purification effect is achieved. Generated ozone by-products can continue to be deeply sterilized and disinfected, electrified airflow immediately passes through a special ozone catalytic layer subsequently, ozone can be efficiently decomposed into harmless oxygen, and the technical problem that ozone exceeds the standard in a traditional electrostatic dust collection technology is solved.

A debris flow discharge channel, comprising: a main channel through which the debris flow passes; a separation screen detachably connected to the main channel, the separation screen separating the main channel into an upper discharge channel and a lower discharge channel; a first accumulation area in communication with the upper discharge channel; a buffer channel in communication with the lower discharge channel, the buffer channel being provided with transverse energy dissipation ridges and longitudinal flow guide ridges; and a second accumulation area provided behind the buffer channel. The separation screen separates coarse and fine particles, which, in terms of service life, prevents the downstream discharge channel from being damaged by the huge impact force of coarse particles or being blocked by the accumulation, effectively prolongs the service life of the discharge channel, and, in terms of later maintenance, the separation of coarse and fine particles facilitates the maintenance and repair of the downstream main channel, thereby effectively reducing the maintenance cost in the later period.

The utility model relates to the technical field of wire drawing machines, in particular to a steel wire drawing mechanism which comprises a drawing cabinet, a processing cavity arranged in the drawing cabinet and a filtering channel with the top end communicated with the processing cavity from bottom to top, and a plurality of air inlet holes communicated with the processing cavity are formed in the top of the drawing cabinet. A processing cavity is formed in the drawing cabinet, a wire inlet and a wire outlet are formed in the two sides of the processing cavity, a plurality of wire drawing rollers and a wire drawing motor are horizontally arranged in the processing cavity, the wire drawing motor is used for driving the wire drawing rollers to rotate for wire drawing, the wire drawing motor is fixed in the drawing cabinet, and a filter screen and a fan are sequentially mounted in the filter channel from top to bottom; the device can automatically clean fine particulate matters formed by soap powder carbonization and white floccules formed by soap scorching on the surface of a steel wire, and can cool the steel wire in the drawing process, so that the device does not need to be frequently shut down for cleaning, the production efficiency of the wire drawing machine is ensured, and the maintenance cost of the wire drawing machine is reduced.

The present invention relates to a reverse osmosis water treatment system comprising: a second- stage LSRRO (Low Salt Rejection RO membrane process) unit using a regenerated membrane as a reverse osmosis (RO) membrane, said regenerated membrane being obtained by subjecting a damaged membrane or a membrane which has reached the end of its service life to a physical and / or chemical treatment for reuse. The present invention comprises: an intake unit including an inlet line for seawater or organic wastewater equipped with an inlet valve, a raw water storage tank for storing the seawater or organic wastewater as raw water, and a feed pump for pressurizing the raw water at a predetermined flow rate and pressure at predetermined intervals; a pre-treatment unit including an ultrafiltration (UF) membrane or microfiltration (MF) membrane for removing fine particulate organic matter contained in the raw water to reduce the load on a downstream reverse osmosis (RO) membrane; and a first-stage RO (Reverse Osmosis) process unit to separate ionic substances included in the filtered water pre-treated by the UF or MF membrane using a reverse osmosis membrane to produce treated water and to separate the raw water into treated water and concentrated water. According to the present invention, there is an advantage in that an LSRRO system can be provided which concentrates raw water to a high concentration with lower energy consumption than conventional RO systems employing commercial membranes.

The application discloses a kind of MXene modified polyimide nanofiber composite membranes and its preparation method and application, the method is prepared by acid etching method MXene nanosheet and polyamide acid molecular chain form strong hydrogen bond and coordination effect, significantly enhance interface binding force.MXene effectively transmits load, inhibits crack propagation, substantially improves the tensile strength and toughness of composite membrane, while extending the diffusion path of particulate matter, combined with the electrostatic adsorption effect produced by MXene itself conductivity, significantly improve the interception efficiency of PM0.3~PM2.5 fine particulate matter.The thermal imidization process ensures that PI matrix is completely converted into high-temperature-resistant structure, giving the material the ability to operate stably at high temperature for a long time.The composite membrane realizes four breakthroughs of high strength, high efficiency, low resistance and high dust capacity, providing a new solution for high-performance air filtration under harsh working conditions.

The invention discloses an atmospheric fine particulate matter on-line extraction and quantitative concentration device, and relates to the technical field of environmental protection, the atmospheric fine particulate matter on-line extraction and quantitative concentration device comprises an ultrasonic pool, a particulate matter collection bottle fixedly installed at the center in the ultrasonic pool and a collision type PM2.5 filter arranged at the top of the particulate matter collection bottle, a dimethylacetamide solvent is stored in the particulate matter collection bottle, and the collision type PM2.5 filter is arranged at the top of the particulate matter collection bottle. The annular groove is formed in the top of the ultrasonic pool, and an annular piece is inserted into the annular groove in a sliding mode and used for increasing the overall volume of the ultrasonic pool; the two-way lead screw is arranged in the horizontal direction and rotationally arranged in the ultrasonic pool, and two nuts are connected to the two-way lead screw in a threaded and sleeving mode; by starting the motor, the two-way screw rod can rotate, so that the two nuts are close to each other in the arrangement direction of the guide rod, and the two rotating pieces are driven to rotate and push the annular piece to move upwards in the annular groove, so that the overall height of the ultrasonic pool is increased, the volume of the ultrasonic pool is conveniently increased, and the ultrasonic pool is suitable for machining of different specifications.

This application belongs to the field of vacuum cleaner technology and discloses a handheld vacuum cleaner with multi-stage filtration, including a handheld handle, a battery, a suction tube, a filter cup, and a main unit. The suction tube has an arc-shaped mounting groove at its top, and air holes communicating with the tube cavity are provided on the bottom surface of the arc-shaped mounting groove. The filter cup is placed in the arc-shaped mounting groove, and its bottom has a first air inlet communicating with the air holes. A filter screen assembly is installed inside the filter cup. The main unit includes a cover, a sealing seat, an inner shell, and a fan assembly. Several internal air outlets are arranged on the inner shell, and several external air outlets are arranged on the cover. An air outlet sponge is placed between the inner shell and the cover. By setting up the filter screen assembly and the air outlet sponge, debris and larger dust particles are filtered by the filter screen assembly, while smaller dust particles are adsorbed onto the air outlet sponge, thereby ensuring that the air blown out from the external air outlets does not contain fine particulate dust or other pollutants, ensuring effective dust removal and cleaning.

The utility model relates to the technical field of flue gas treatment, and discloses a metal heating furnace environment-friendly flue gas treatment device which comprises a flue gas treatment box, an air inlet is formed in the right end of the flue gas treatment box, an air outlet is formed in the left end of the flue gas treatment box, supporting frames are fixedly connected to the left side wall and the right side wall of the flue gas treatment box, and a water tank is fixedly connected to the lower ends of the supporting frames. Drainage pipes are fixedly connected to the lower ends of the left and right sides of the flue gas treatment box; and the dust falling mechanism is arranged in the flue gas treatment box. According to the utility model, dust-containing flue gas enters the flue gas treatment box from the gas inlet, firstly passes through the dust falling mechanism to be settled and collected, then the flue gas continuously flows to the filtering mechanism to further remove residual fine particles, and finally, the purified flue gas is discharged from the gas outlet. The efficient cleaning of particulate matters in the flue gas of the metal heating furnace and the multi-stage filtration of the flue gas are realized, the purification efficiency of flue gas treatment is effectively improved, and the environmental pollution is reduced.

The utility model provides coal mine ventilation and dust fall equipment which comprises a box body, an upper plate and a lower plate are fixedly installed in the box body, a first threaded rod and two second threaded rods are rotationally connected between the upper plate and the lower plate through bearings, and the first threaded rod and the two first threaded rods all extend to the top end of the upper plate. And a motor is fixedly mounted on the box body. By starting a motor, a plurality of connecting plates drive cleaning brushes to move to perform double-sided cleaning on a first filter screen and a second filter screen, fine particles attached to the surfaces of the filter screens and hidden in the deep positions of meshes can be more comprehensively removed, the situation that the filtering efficiency is reduced due to blockage is avoided, and the filtering effect of the filter screens is improved; particulate matters on the surface of the filter screen can be uniformly removed, non-uniform abrasion caused by single-side cleaning is avoided, the service life of the filter screen is prolonged, the replacement frequency is reduced, the maintenance cost is reduced, and it is guaranteed that the device can continuously and efficiently remove dust and pollutants in air.

The invention discloses a mountainous area channel type waste slag yard upstream water flow comprehensive treatment structural form, an upstream slag blocking dam and a downstream blocking dam are sequentially arranged on the upstream of a waste slag yard in the water flow direction, and a drainage tunnel is arranged between the upstream slag blocking dam and the downstream blocking dam and is close to the downstream blocking dam. The upstream slag blocking dam is of a concrete structure, an overflow groove is reserved in the top of the dam body, and a plurality of holes communicating upstream and downstream are formed in the middle of the dam body. The method is high in engineering applicability, can be directly deployed in the upstream area of the channel type waste slag field in the mountainous area, does not need complex terrain reconstruction, and is particularly suitable for typical mountainous area environments with steep terrains and limited construction conditions. By means of the optimized structural design, efficient interception of floating objects and coarse particle matter can be achieved at the same time; and fine-particle silt is directionally deposited to form a complete protection system. Deposits are convenient to clean, and the maintenance cost is remarkably reduced.

The invention relates to the technical field of raised dust treatment, and discloses a raised dust treatment device for constructional engineering, which comprises a base, a support frame mounted on the base, a driving motor mounted on the base, universal wheels arranged on the base, a water storage tank mounted on the base, a first belt wheel fixedly connected to the output end of the driving motor, and a second belt wheel fixedly connected to the output end of the driving motor. According to the dust removal device, in the reciprocating transverse movement process of the spraying head, water can be synchronously sprayed to a construction area where raised dust needs to be treated, the spraying range of liquid can be enlarged, the contact area and the contact probability of dust in air and the liquid can be increased, the dust removal efficiency is improved, and the dust removal efficiency is improved. Dust and particulate matter in air can be separated, the separation efficiency of the device is improved, the spraying head can spray to a higher building area, the height limitation of fixed spraying can be broken through, full-space dead-angle-free covering spraying dust removal is achieved, and the capturing efficiency of fine particulate matter is improved.

The embodiment of the utility model provides a tail gas treatment structure of an asphalt mixing station, and relates to the technical field of tail gas treatment equipment. The tail gas treatment structure of the asphalt mixing station comprises a suction type gas collecting hood, the top of the suction type gas collecting hood is fixedly connected with a dust suction pipe, and one end, far away from the suction type gas collecting hood, of the dust suction pipe is fixedly connected with a cyclone dust collector. The first draught fan is started, so that tail gas enters the cyclone dust collector from the dust suction pipe, the tail gas rotates and descends under the inertia effect, dust and gas are separated through centrifugal force generated by rotating motion, the dust is collected through the dust collection box, hot air subjected to primary purification is sucked into the smoke pipeline and then fed into the cloth bag dust collection box, and the dust collection box is used for collecting dust. The tail gas subjected to primary filtration is discharged into a bag dust removal box through a flue gas pipeline, and dust in the tail gas is subjected to secondary filtration by a dustproof bag, so that fine particulate matters are removed.

This invention discloses a mine ventilation control method, electronic equipment, and program product. The mine ventilation control method uses a built-in miniature sensor in the breathing mask to collect air quality parameters in the breathing zone of the breathing mask in real time, and simultaneously obtains the current location coordinates of the miner. The air quality parameters are used to calculate the real-time hazard level of the breathing zone by combining the corresponding safe thresholds for carbon monoxide concentration, fine particulate matter concentration, oxygen concentration, and the minimum safe wind speed when the particulate matter concentration exceeds the standard. When the preset hazard threshold is exceeded, the method generates and issues control commands for the rotation speed, damper angle, and / or airflow direction of the ventilation fans installed in the mine roadway, based on the miner's location coordinates, so as to minimize the hazard level in subsequent moments.

According to the urban forest space fine particulate matter concentration assessment method and system disclosed by the invention, the mobile monitoring equipment is arranged in different areas of an urban forest, so that fine particulate matter concentration data of each area can be obtained in real time; meanwhile, a more comprehensive and detailed data set can be formed by combining data of a fixed-point monitoring station, so that the distribution condition of the fine particulate matter concentration in the urban forest space can be reflected more accurately; by setting the fine particulate matter concentration warning threshold value, the management end is reminded to take corresponding measures in time, and the ecological safety of urban forests and the health of citizens are effectively guaranteed.

The discharge type desulfurization and denitrification and fine particulate matter trapping equipment comprises a reaction tower and a discharge reactor, waste gas enters the discharge reactor and then enters the reaction tower, flows from bottom to top in the reaction tower, passes through the desulfurization and denitrification reaction area and the electrostatic trapping area and then flows out from the upper part of the reaction tower; integrated collaborative purification is achieved, and the three functions are integrated; an advanced pulse power supply and an optimized reactor structure are adopted, so that the generation efficiency and the stability of discharge plasma are improved; the output parameters of the high-voltage pulse power supply, the addition amount of the absorbent and the operation cycle of the ash removal system are automatically adjusted through an intelligent algorithm; it is ensured that the system can keep the optimal operation state under different working conditions, and the adaptability and reliability of the system are improved.

The invention discloses an atmospheric fine particulate matter traceability result cross validation and reliability evaluation method based on integration of various receptor models. Aiming at the problems that a single receptor model is high in analysis result uncertainty and lacks objective verification standards, through four receptor models of PMF, CMB, ME-2 and ESAT, a model analysis result is evaluated on the basis of constructing a localized feature source spectrum library as a reference standard. Testing the overall performance of the model through reconstruction mass concentration verification and RMSD * indexes; then calculating a standardized feature identification distance and a Pearson distance between each model candidate source and a reference source spectrum, and a Pearson distance of a source contribution time sequence, and carrying out preliminary screening on the candidate sources according to a preset threshold value; and finally, quantitatively comparing the screened source contribution result with an integrated reference value by using a Z-score index, and evaluating the accuracy. According to the invention, automatic and multi-dimensional comprehensive verification of the particulate matter traceability analysis result is realized, and the reliability and objectivity of the source analysis result are improved.

The invention discloses a hazardous waste molten flue gas quenching-dust removal integrated heavy metal trapping device which comprises a first recovery treatment mechanism, a second recovery treatment mechanism and a cyclone dust collector. According to the invention, the residence time of the hazardous waste molten flue gas is greatly reduced, and the high-temperature flue gas can be rapidly cooled from 800 DEG C to 450 DEG C and 200 DEG C by using a heavy metal cascade condensation technology, a first recovery treatment mechanism and a second recovery treatment mechanism, so that the residence time of the flue gas in a temperature window where harmful substances are easily generated is greatly shortened, and the energy consumption is reduced. The generation probability of harmful substances such as dioxin is reduced, various heavy metals can be effectively recycled conveniently, residual particles in flue gas can be further removed through the cyclone dust collector, and residual tiny particles, toxic gases such as dioxin and the like can be efficiently captured by spraying activated carbon into the cyclone dust collector. And it is ensured that the exhaust gas finally discharged into the atmosphere meets the environmental protection standard.

The present application relates to fine particle sensing technology, and particularly relates to a microcavity vibration spectrum system and method for measuring inherent vibration spectrum of fine particles. The microcavity vibration spectrum system comprises an inherent vibration excitation light path unit and a microcavity detection light path unit; the inherent vibration excitation light path unit is sequentially provided with a pulsed light source, a vibrating mirror, an objective lens and a particle to be measured; and the microcavity detection light path unit is sequentially provided with a tunable laser light source, an adjustable attenuator, a polarization controller, a coupling optical waveguide, an optical microcavity, a photodetector and an oscilloscope. The present application can realize precise measurement of sound waves caused by particle vibration of mesoscale particles and biological particles with inherent vibration frequency in the sub-megahertz-gigahertz frequency range.

The utility model discloses a tailing pond initial dam inner slope high-efficiency seepage drainage device which comprises a dam body, a rock-fill water collecting prism body and an inverted filter covering a slope face are arranged at the bottom of an inverted seepage face of the dam body, a plurality of seepage pipes are arranged below the inverted filter and on the inner layer of the inverted filter, the seepage pipes are arranged from top to bottom, and the seepage pipes are arranged on the inner layer of the dam body. The lower ends of the percolation pipes extend into the rockfill water collecting prisms, a gas conveying pipe communicated with the upper ends of the percolation pipes is arranged on the upper portion of the dam body, a branch connecting piece is communicated between each percolation pipe and the gas conveying pipe, and a gas pumping-out assembly is further communicated with the gas conveying pipe. High-pressure gas is pumped into the gas conveying pipe by the gas pumping-out assembly at set intervals, high-pressure air is injected into the percolation pipe under the cooperation of the branch connecting piece, and linear high-pressure gas pushing is formed in an inner cavity of the percolation pipe, so that sludge, fine particles and the like adhering to the pipe are blown into the rock-fill water collecting prism together.