74results about How to "Solve the purification" patented technology

The invention discloses an oxidation type air purifying material which has low cost and good air purifying effect and does not have secondary pollution. The oxidation type air purifying material is formed by loading an inorganic oxidant on an inorganic adsorbing material. The invention provides a method for preparing the material simultaneously, which comprises the following steps of: drying the inorganic adsorbing material till the moisture of the inorganic adsorbing material is less than 4 percent; preparing aqueous solution, which is at the concentration of between 5 and 20 percent (g/ml), of the inorganic oxidant; and immersing the aqueous solution of the inorganic oxidant in the inorganic adsorbing material for 18 to 36 hours, draining redundant liquid, and drying in a drying oven at the temperature of between 50 and 130 DEG C.

The invention discloses a sectored multi-step ecological buffer type revetment system. The revetment system is provided with at least four levels of steps, blocking walls are sequentially arranged on the outer sides of the steps, one plant planting zone is arranged in the blocking wall of each level, soil matrix is arranged in the upper layer of each plant planting zone, yellow sand, ceramsite, soft rock and zeolite are sequentially in the lower layer of the plant planting zone of each level, and emersed landscape plants and submergence-tolerant plants are arranged in the plant planting zone of each level; hydraulic drop platforms are sequentially arranged in the corresponding positions of spaced plant planting zones of the blocking walls; and one guide plate is arranged between each blocking wall and the corresponding hydraulic drop platform; the plant planting zone of the first level is connected with a farmland drainage canal and is sectored towards the downstream to form a hydraulic-drop type hierarchical structure in an open sectored shape, the sector radius is 5-8 m, and the central angle is 45 degrees-75 degrees; and the blocking wall of the last level is connected with a river channel. The sectored multi-step ecological buffer type revetment system not only has the efficacies of protecting river channel side slope, and realizing flood water drainage and water and soil conservation, but also has good purification and landscape effects.

The invention relates to the technical field of air conditioners, in particular to a hanging type air conditioner indoor unit. The problem that in the prior art, an air purifier or large fresh air system is adopted to improve indoor air quality, and the effect is not ideal is solved. The hanging type air conditioner indoor unit comprises a shell, an air returning opening, an air outlet and a purifying module; the purifying module comprises a shell, an air inlet system and an exhaust system, the air inlet system comprises a dual-way air pipe, a first air inlet and outlet, a heat exchanger, an induced draft fan and an outdoor fresh air outlet pipe, the exhaust system comprises an indoor air inlet, an exhaust fan, a heat exchanger, a first air inlet and outlet and a dual-way air pipe; the purifying module can be mounted on one side of a shell of the hanging type air conditioner indoor unit. Through the arrangement manner that the purifying module can be mounted on one side of the shell ofthe hanging type air conditioner indoor unit, the hanging type air conditioner indoor unit can reasonably and effectively purify indoor air, and meanwhile, the oxygen content of indoor air can be improved.

The invention relates to a high tensile strength multicomponent mixed inclusion PVB diaphragm. The diaphragm comprises the following raw materials, by weight, 69-93 parts of the PVB, 1-10 parts of an ultraviolet light absorbent, 5-20 parts of nanometer cellulose, and 0.8-1.2 parts of a silane coupling agent. A production diaphragm of the diaphragm is characterized in that: the nanometer cellulose, the ultraviolet light absorbent and the silane coupling agent are added to the PVB according to above proportions, the raw materials are fully stirred in a tapered mixer, sent to a double screw extruder by a feeder, heated to 140-150DEG C, mixed, extruded, and subjected to extrusion tape casting by a die head to prepare the PVB diaphragm with the thickness of 0.38-0.76mm. The molecular level nanometer cellulose for the production of the diaphragm contains abundant hydroxyl groups which are reacted with nanometer TiO2 to generate titanium-based alcohol, and the titanium-based alcohol is reacted with Si-OH on the glass surface to generate firmly combined Ti-O-Si bonds, so a netted structure is finally formed, thereby the tensile strength, the plasticity and the bonding intensity with glass of the diaphragm are substantially improved.

The invention discloses an ion chromatograph based on multi-valve switching and for offline and online analysis and a detection method of the ion chromatograph. The ion chromatograph comprises an automatic sample feeder, two chromatographic pumps, multiple six-way valves, an online purifying column, an enriching column, a chromatographic separation column, an ultraviolet detector, an inhibitor and an electrical conductance detector. Online switching of offline ion chromatographic analysis and online purifying ion chromatographic analysis can be realized on one ion chromatograph, the problem that conventional ion chromatographs can only conduct offline ion chromatographic analysis or online purifying ion chromatographic analysis is solved, and online switching of analysis systems can be realized according to properties of to-be-analyzed samples, so that convenience and using efficiency of the ion chromatograph are improved greatly, and using cost of the ion chromatograph is lowered. In addition, an online purifying analysis system saves sample pretreatment time and complex operation process; compared with disposable using characteristics of conventional purifying columns, the online purifying column is more environment-friendly through activation and regeneration treatment and recycling, and analysis cost is greatly lowered.

The invention discloses an ecological floating island for remediation and treatment of black and odorous water. The ecological floating island comprises a floating base, a net-shaped cylinder base, a floating ball, a balance frame, a steel wire rope and a fixing rivet, the net-shaped cylinder base is welded with the bottom of a purification base, and the floating base is fixed to the junction of the purification base and the net-shaped cylinder base and located on the outer side wall of the purification base; a driving motor is installed in a top protrusion of the purification base, and one end of a rotary shaft extends to the bottom of the net-shaped cylinder base and is provided with a rotary rack; the balance frame is installed at the bottom of the rotary rack, the steel wire rope is connected with the center of the bottom of the balance frame, and the fixing rivet is fixed to one end of the steel wire rope. According to the ecological floating island for remediation and treatment of the black and odorous water, by installing the floating base, the purification base and the floating ball and forming ecological planting grooves, the black and odorous water can be effectively adjusted through the rhizomes of aquatic plants, floating objects on the surface of the water can be effectively collected through the floating island, and the area of the purified water is increased. The problems are solved that a traditional sewage purification device is single in function, small in purification area, long in treatment time, low in purification speed, high in maintenance cost and the like.

The invention relates to a composite constructed wetland system. The composite artificial wetland system comprises a horizontal subsurface organic filler constructed wetland unit and a vertical downward subsurface constructed wetland unit which are sequentially arranged in the direction of water current, wherein the horizontal subsurface organic filler constructed wetland unit comprises a drop shaft, a first gravel layer, a second gravel layer, an organic filler layer, a pervious concrete slab, a non-woven fabric layer, a quartz sand layer, aquatic plants, a water inlet, an effluent collectingwell, a water outlet and a ventilating mechanism; the organic filler layer consists of a honeycomb mechanism filled with a magnetic organic filler; a fixed plate is arranged at the bottom of the honeycomb mechanism; the vertical downward subsurface constructed wetland unit comprises a fourth gravel layer, a ceramsite layer, a third gravel layer and a planting layer which are sequentially arrangedfrom bottom to top. According to the composite constructed wetland system provided by the invention, the blockage problem of constructed wetland is effectively solved; in addition, high-load sewage can be effectively purified.

The invention discloses recycled type sewage purification equipment. The equipment comprises a filtering chamber, one side surface of the filtering chamber is fixedly connected to a first water aqueduct, the other side surface of the filtering chamber is fixedly connected to a second water aqueduct, the inside of the filtering chamber is provided with a filtering plate, a first filtering layer and a second filtering layer respectively, leak holes distributed with an equal distance are formed in the filtering plate, one end of the second water aqueduct far from the filtering chamber is fixedly connected to one side surface of a distillery, and the bottom of the distillery is provided with a heater. The recycled type sewage purification equipment can conduct effective filtering treatment and recycling on the sewage, and effectively avoid direct discharge of sewage and water resource waste. Sewage utilization rate is high, water resource recovery efficiency is high, effect of circulation and purification is better, purification is more diversified, and operation is simple. The equipment is practical and convenient, thus the problems of inferior sewage purification effect and water resource waste is effectively solved.

The invention discloses an ion chromatograph for dual-channel offline and online analysis based on multi-valve switching and a detection method thereof. The ion chromatograph comprises an automatic sampler, two chromatography pumps, a plurality of six-way valves, an online purifying column, an enriching column, two chromatograph columns, an ultraviolet detector, a suppressor and a conductive detector. The dual-channel online switching of offline ion chromatography analysis and online ion chromatography analysis can be realized on one ion chromatograph, the online switching for analyzing channel can be realized according to the property of a to-be-analyzed sample and offline or online separating analysis for the materials in different properties on different chromatographic columns can be realized, so that the defect that the traditional ion chromatograph can only perform offline analysis or online purification can be overcome, the applicability and the use efficiency of the instrument can be greatly increased and the use cost of the instrument can be lowered. An online purifying analyzing system can simplify a complex operation process, so that the preprocessing time of the sample is saved, the online purifying column can be subjected to activating regeneration treatment and can be reused, the ion chromatograph is more environment-friendly and the use cost can be reduced.

The invention discloses a microporous impeller aerator, which comprises a gear case (8), a motor (7), an impeller (10), a fan (5), a gas delivery pipeline (3), an aeration disk (11), floats (11) and a support (2). The floats (1) are connected to the support (2), the gear case (8) is installed on the support (2), the motor (7) is connected to an input shaft of the gear case (8), the impeller (10) is connected to a main transmission shaft (6) of the gear case (8), the fan (5) is connected to an auxiliary transmission shaft (9) of the gear case (8), and an air outlet of the fan (5) is connected with the aeration disk (11) through the gas delivery pipeline (3). The microporous impeller aerator in an integral structure for surface and underwater stereoscopic aeration is high in aerating efficiency, effective in aeration and low in energy consumption.

The invention discloses a solid-phase extraction column used cooperatively with a GC-FID instrument and application thereof. The solid-phase extraction column used cooperatively with the GC-FID instrument is applied to pretreatment of a to-be-detected sample for mineral oil contaminant detection of food. The solid-phase extraction column comprises a hollow glass column and a plurality of glass fiber sieve plates which are arranged in the hollow glass column and isolate the interior of the hollow glass column into a silver nitrate impregnated silica gel filling space used for filling of silver nitrate impregnated silica gel, an anhydrous sodium sulfate filling space used for filling of anhydrous sodium sulfate and an alumina filling space used for filling of alumina, wherein the silver nitrate impregnated silica gel filling space, the anhydrous sodium sulfate filling space and the alumina filling space are successively arranged from top to bottom. Through pretreatment of the sample for analysis of mineral oil contamination of food by using the solid-phase extraction column, analysis pollution can be effectively reduced, and repeatability and accuracy of sample detection are improved; and the solid-phase extraction column is applicable to most food.

The invention discloses a device and a method for removing methanol from a methyl tert-butyl ether cracking product. The MTBE cracking product and absorption liquid undergo cross flow-counterflow contact in a multistage airflow shear cross-flow bed; under the shear action of high-speed rotating filler, cracked gas and the absorption liquid are dispersed, coalesced and redispersed for multiple times, so that multistage absorption is realized; cracking gas is introduced to a gas inlet in the side bottom of a multistage airflow shear cross flow bed; a gas outlet in the top of the multistage airflow shear cross flow bed is connected with a purified gas section; the absorption liquid is introduced to a liquid inlet in the side top of the multistage airflow shear cross flow bed; a liquid outletin the bottom of the multistage airflow shear cross flow bed is used for draining the absorption liquid; the liquid inlet is connected with a pump; the liquid outlet of the multistage airflow shear cross flow bed is connected with a liquid-rich tank; the multistage airflow shear cross flow bed comprises a liquid distributor, a liquid collecting and redistributing device, a rotor, a stator, a driving device and a casing. According to the equipment, the gas and the absorption liquid generally make counterflow contact, so that a gas-liquid mass transfer propulsion force is greater, the purification degree of the cracking gas is improved, and the concentration of methanol in the rich solution and the utilization rate of the absorption liquid are improved.

The invention discloses a method for preparing methanol and dimethyl ether by taking calcium carbide furnace tail gas and sodium chlorate tail gas as well as other hydrogen-containing gas sources as raw materials. The method mainly comprises the following steps: carrying out rough purification, temperature swing adsorption (TSA), pressure swing adsorption (PSA) and precise purification on the calcium carbide furnace tail gas and then mixing with hydrogen purified from the sodium chlorate tail gas and other hydrogen-containing gas sources, so as to obtain methanol synthesis gas; carrying out synthesis reaction on the methanol synthesis gas to obtain coarse methanol; and further dehydrating the coarse methanol to produce dimethyl ether, or rectifying to obtain a methanol product. According to the characteristics that the content of CO in the calcium carbide furnace tail gas is high and the content of hydrogen in the sodium chlorate tail gas and other hydrogen-containing gas sources is high, the calcium carbide furnace tail gas and sodium chlorate tail gas which are subjected to effective special treatment can serve as raw materials having higher value to be used; the purpose that the calcium carbide furnace tail gas and sodium chlorate tail gas are comprehensively utilized as the raw materials to prepare methanol and dimethyl ether is reached, the effective energies of the calcium carbide furnace tail gas and sodium chlorate tail gas as well as other hydrogen-containing gas sources are optimally utilized, thereby reaching the purposes of saving energy and reducing emission, turning wastes into wealth and improving economic benefits.

The invention relates to an air cleaner for a fresh air system. The air cleaner for the fresh air system comprises a high efficiency particulate air filter, an activated carbon filter net, an aluminum-based plasma electrostatic net, a high voltage electrostatic generator, an ultraviolet lamp, a fan, a rear outer shell, a front outer shell, a movable handle, an exterior matching air inlet, a lower outer shell and an upper outer shell. The air cleaner can be installed at an air inlet of the fresh air system, and can effectively intercept, thoroughly purify, disintegrate, deodorize and sterilize pollutants, bacteria and viruses in outdoor air, and at last send fresh air which is purified completely into a room through a fresh air system pipeline.

The invention relates to an environment-friendly artificial wetland system for purifying dredging remained water/tail water. The environment-friendly artificial wetland system comprises a water level regulation pool, a wetland purification pool and an effluent collecting pipe, wherein the system forms a cuboid shape; the water level regulation pool is arranged at the front-end water intake part of the wetland purification pool; the effluent collecting pipe is arranged at the rear-end discharge part of the wetland purification pool; the reclaimed water/tail water enters the wetland purification pool after the water level regulation pool carries out suspended solid treatment on the dredging remained water/tail water; the reclaimed water/tail water is subjected to physical settlement and a series of biochemical reaction in the wetland purification pool for a period of time; the purified reclaimed water/tail water enters the effluent collecting pipe from the bottom of the wetland purification pool to discharge. The artificial wetland system is adopted to process the dredging remained water/tail water by combining with the actual condition of the dredging engineering, the environment-friendly artificial wetland system has the characteristics of being stable in effluent quality, strong in removal capacity on nutrient substances such as N, P and the like, low in construction and operation cost, convenient to maintain and manage, strong in impact load resistance, high in aesthetic value and the like, and the problem of beneficial use of dredging bottom mud containing high-content pollutants and organic matters can also be effectively solved.

The invention discloses a fresh air purification system in a full replacement mode. The fresh air purification system in the full replacement mode has the multiple functions of primary-efficiency filtration, organic substance decomposition with photocatalyst, medium-efficiency filtration, high-efficiency electrostatic dust collection, ozone decomposition, total heat exchange and the like, is capable of effectively removing 2.5 [mu]m or below fine particles in air and has the functions of sterilization, decomposition of formaldehyde, methylamine, benzene, xylene, TVOC, harmful organic substances and excessive ozone in the air and total heat exchange at the same time, so that fresh air fed into a room is comprehensively purified, and the cold (hot) quantity of the indoor air is recycled.

The invention discloses a landscape tree lamp post which comprises a lamp post main body, simulation branches, simulation leaves, simulation bark and an embedded part. The embedded part is fixed below the earth surface, and the lamp post main body is fixed on the earth surface through the embedded part. The simulation branches and the simulation leaves are connected with the lamp post main body. A lighting device is further arranged on the lamp post main body. The lamp post main body comprises a first supporting pipe fixedly connected with the embedded part. An electric transmission line paved with the lighting device is arranged in the first supporting pipe, a molding layer is arranged on the outer side of the first supporting pipe, and the aperture of the molding layer is reduced gradually from the bottom to the top. The simulation bark is arranged on the outer side of the molding layer. The landscape tree lamp post can meet requirements of lighting and environment beautifying and purifying, simultaneously is free of irrigating and leave falling, greatly reduces management cost, and is a novel low-carbon environment-friendly and energy-saving product.

The invention discloses a biotechnology air purification device, and relates to the technical field of air purification. The biotechnology air purification device comprises a fixing box, a filter plate is fixedly connected between the two sides of the inner wall of the fixing box, an air inlet pipe penetrates the part between the two sides of the inner wall of the fixing box and the top of the fixing plate, and a microorganism treatment box is fixedly connected between the two sides of the inner wall of the fixing box. A partition plate is fixedly connected between the middle of the top of themicroorganism treatment box and the middle of the bottom of the fixing plate. A first motor is fixedly connected to the top of the inner wall of the fixing box. A first bevel gear is fixedly connected to an output shaft of the first motor, and the two sides of the surface of the first bevel gear are engaged with second bevel gears. The biotechnology air purification device solves the problems that an existing air purification device is small in purification speed and poor in purification effect; the biotechnology is used for purifying air, the air purification effect is improved, the air pollution treatment standard is achieved, the environment is well protected, and the air environment quality is improved.

The invention provides an environment-friendly energy-saving material and a preparation method thereof, and relates to the field of environment-friendly material. The environment-friendly material is prepared from, by weight, 30-41 parts of expanded perlite, 8-13 parts of magnesium oxide, 22-33 parts of cement, 15-23 parts of urea resin, 0.5-1.2 parts of sodium dodecyl benzene sulfonate, 4-7 parts of anion additive, 3-8 parts of blast furnace slag, 5-13 parts of fly ash, 6-9 parts of shale ashes, 12-23 parts of waste polyethylene foam, 15-19 parts of waste foaming cement, 20-23 parts of waste phenolic foam heat insulation panel, 15-21 parts of bamboo charcoal, 5-11 parts of diatomite, 0.2-0.4 part of retarder, 0.1-0.3 part of air entraining agent, 0.3-0.7 part of water reducing agent, and 3-5 parts of water. The preparation method includes steps of (1), weighing raw materials; (2), smashing; (3), stirring; (4), pouring and shaping, demolding, stacking and maintaining. The an environment-friendly energy-saving material solves the problems that the existed environment-friendly heat insulation material is insufficient in applying to the buildings with high requirements on compressive strength, heat insulation, air purification, environmental protection and energy saving.

A lake landscape purifying device comprises a plant landscape purification system arranged in a lake and a biochemical purification system arranged on the plant landscape purification system, wherein a floating ball and a hauling cable are arranged on the plant landscape purification system, one end of the hauling cable is connected with the plant landscape purification system, and a heavy anchor is arranged at the other end of the hauling cable. The device overcomes poor water transparency, large depth and water ecology losing of polluted water, improves the ecological environment of a lake water system, improves the quality of lake water, recovers the ecological environment of lake water, and solves the problems of great operation space limitation, low space utilization rate, high cost and poor purification effect of a single water ecology construction mode.

The invention discloses a method for determining pesticide residues in edible plant enzymes, which comprises the following steps: (1) preparing a pesticide standard stock solution from a pesticide standard substance, carrying out QuEChERS pretreatment on plant enzymes without pesticide residues, and preparing a standard working curve by using liquid chromatography triple quadrupole tandem mass spectrometry; (2) carrying out QuEChERS pretreatment on the edible plant enzyme to be analyzed to obtain a filtrate; and (3) carrying out liquid chromatography triple quadrupole tandem mass spectrometryanalysis and determination on the filtrate, and analyzing to obtain the content of pesticide residues in the edible plant enzyme. According to the method disclosed by the invention, the QuEChERS and the liquid chromatography-tandem triple quadrupole mass spectrometry are used for determining the pesticide residues of the edible plant enzyme for the first time; at least 65 kinds of pesticide residues can be detected at the same time, an important theoretical basis is provided for detection of pesticide residues in edible plant enzymes in the future, and reference value is achieved for formulation of related pesticide residue detection standards.

The invention discloses a filtering and humidifying integrated ecological fresh air system and an applied door and window thereof, and relates to the technical field of fresh air filtering and humidifying equipment. The problems that in the prior art, the purification effect is poor, the intelligence degree is low, and use comfort is low are solved. According to the technical scheme, the system comprises a shell, an air inlet unit is arranged on one side inside the shell, an air supply unit is arranged on the side, opposite to the air inlet unit, in the shell, a dry method two-stage filteringbin and an ultrasonic humidifying bin communicate between the air inlet unit and the air supply unit in sequence, the air inlet unit comprises a drive motor located in an air inlet machine chamber, anoutput shaft of the drive motor is connected with a centrifugal rotor facing the dry method two-stage filtering bin, the right center of the centrifugal rotor is provided with a filter element in a penetrating manner, and an absorbing part is arranged in the dry method two-stage filtering bin. The purification effect obtained after fresh air filtering and humidifying can be improved, the requirement of a user for the use comfort is met, and meanwhile, through structural changes, a traditional aluminum alloy door and window achieves the aims of anti-theft safety, energy saving and environmentfriendliness

The invention relates to a biomass dry gasification centralized air supply system. The system consists of a gasification furnace, a dust removing system, a cooling purification system and a transmission and distribution system, wherein the dust removing system comprises a negative pressure vortex dust remover, a primary self-cooling dust remover and a secondary self-cooling dust remover; the cooling purification system comprises a primary coarse purification tower, a secondary coarse purification tower, an indirect cooling tower, an air-water separation tower, a purification tower, a vinegar tar tank, a circulating water tank, a circulating water pump, a fine purifier and a Roots blower; and the transmission and distribution system comprises a compatibilization transmission and distribution main pipe network, a branched air cylinder and a check valve. The biomass dry gasification centralized air supply system has the characteristics that: 1, the gasification furnace can continuously run; 2, sewage is not generated in the production process; 3, the system is not provided with a huge air holder; 4, the fuel gas quality is high; and 5, the equipment utilization rate is high, the construction investment is small and the centralized air supply system is energy-saving and environmentally-friendly.

The invention discloses an air purification method, device, equipment and system and a readable storage medium. The air purification method comprises the following steps that a parameter for representing the air quality is obtained; whether the parameter used for representing the air quality is within a preset parameter range or not is judged; when the parameter used for representing the air quality is not in the parameter range, a control signal is sent to preset air purification equipment according to the relation between the parameter used for representing the air quality and the parameterrange; and when the air purification equipment receives the control signal sent by movable equipment, the working parameters of the air purification equipment are adjusted according to the control signal. Through implementing the air purification method, the problem that the air purification equipment cannot comprehensively detect and purify the air quality in a large space in real time due to thefact that the air purification equipment is inconvenient to move is solved, the size of the movable equipment is small, the air quality is detected in real time through the movable equipment, use ofthe spatial position is not affected, and the power consumption is reduced.

The invention discloses an air purifier based on the NB-IOT. The air purifier comprises an air detection module, an air purification module and a center processor module which are connected through anNB-IOT communication module. The air purifier further comprises a particulate matter sensor used for monitoring dust particles in the air and a harmful gas sensor used for monitoring formaldehyde, nitric oxide and ammonia gas in the air. The monitored concentration value of PM2.5 in the air and the concentration value of the formaldehyde or the nitric oxide or the ammonia gas are transmitted to the center processor module, and the center processor module compares the concentration values with a preset value and sends out a purification instruction according to the comparison result. The air purification module conducts air purification according to the purification instruction. The communication module using the NB-IOT technology is adopted in the transmitting process, network signals aregood, and the problem that the monitoring information, the purification instruction and the like cannot be effectively transmitted without the broadband network and mobile data or under the conditionof poor signals and thus the air cannot be effectively purified is solved; the power consumption is small and cost is low; and the comparison result can be transmitted to a mobile terminal, so that the functions of remote monitoring, control and the like are achieved.

The invention relates to the technical field of underground garage smoke prevention and exhaust, and discloses a multilayer underground garage vertical ventilation smoke prevention and exhaust system.The multilayer underground garage vertical ventilation smoke prevention and exhaust system comprises a smoke prevention system and a smoke exhaust system which are arranged in an escape staircase, wherein the smoke prevention system comprises a pressurizing fan, an air outlet pipeline and an air outlet which are sequentially connected, the smoke exhaust system comprises a plurality of air inletsformed in each layer of the garage and a plurality of air exhaust ducts and air exhaust outlets vertically arranged on the side walls of the garage, a closed calcium hydroxide solution pool is furtherarranged below the bottom layer of the garage, the upper ends of the air exhaust ducts are connected with the air exhaust outlets, the lower ends of the air exhaust ducts stretch into the position below the liquid level in the closed calcium hydroxide solution pool, and the air inlets are connected with the side surfaces of the exhaust ducts. The problems that an existing garage smoke preventionand exhaust system is single in a smoke exhaust mode, low in the utilization rate of the exhaust ducts, and cannot purify smoke are solved.

The invention discloses an underground movable split escape capsule system, which relates to the technical field of underground disaster prevention life-saving equipment for a coal mine and consists of a transition capsule, a main capsule and an auxiliary capsule, wherein all capsule body split bodies are connected through flanges and are provided with a transition capsule door, a main capsule door and an auxiliary capsule door. The underground movable split escape capsule system is characterized in that the system in the capsule body mainly consists of an alternating current motive-power power supply and high-capacity colloid storage battery uninterrupted conversion device, a compressed air system oxygen supply device, a compressed oxygen supply device, a filteration, temperature reduction and dehumidifying integration device, a gas dilution purifying device and an excrement collector, wherein the alternating current motive-power power supply and high-capacity colloid storage batteryuninterrupted conversion device provides electric power supply for a communication and environment gas monitoring system and an instrument, and the excrement collector is arranged in the transition cabin. The underground movable split escape capsule system solves the problems to reach the goals that the oxygen supply, the temperature reduction and dehumidification and the gas dilution purification are realized, the electric power can be provided for more than 96 hours, or the infinite power supply can be realized, the split connection is convenient, the work efficiency is high, the required space is small, the construction engineering quantity is reduced, after the mine disasters occur, workers can enter all cabins to repair facilities in the cabins without gonging out of the escape capsule, simultaneously, miners can conveniently go out from the cabins, and the like.

The invention discloses a mask of an air purification device. The mask comprises a mask casing, rotatable connecting pieces and two gas channels mounted on the two sides of the mask casing, wherein the mask casing is used for isolating an environment near the nasal cavity of a user from the external environment. The rotatable connecting pieces are mounted on the two sides of the mask casing and provided with air inlets for leading clean air into the gas channels. One end of each gas channel is in airtight connection with the rotatable connecting piece, and the other end of the gas channel is connected with an air outlet. Air outlet holes in the air outlet are formed according to respectively set angles and lead the clean air out to be near the nasal cavity of the user. The clean air can be provided for the user, permeability and a filtering effect are both considered, and even if the mask is worn for a long time, the user does not feel oppressed and unsmooth in breath.

The invention relates to a combustion pool smoke discharging heat recovery and purification system, belonging to the technical field of recycle of resources and building energy conservation. The system is characterized by mainly consisting of a horizontal flue, flue ports, a vertical chimney, a smoke control valve, a smoke residual heat recovery device, a smoke dust collection device and a smoke purification device; the horizontal flue is provided with a plurality of the flue ports to collect smoke; and the smoke is sequentially subjected to smoke residual heat recycle, smoke particle desorption, and removal of harmful gases such as sulfur oxide, nitrogen oxide in the smoke through the smoke residual heat recovery device, the smoke dust collection device and the smoke purification device, and finally the smoke is discharged through the vertical chimney. The system provided by the invention has the beneficial effects of smoke purification, low carbon discharging, efficient heating, outdoor environmental improvement and the like, can be used in dwelling houses in villages and small towns and industrial factory buildings without central heating, and has very important promotional value and obvious environmental and economic benefits.

The invention discloses a method of concentrating and recycling hydrogen sulfide in industrial acid gas by absorption of an organic solvent, and belongs to the field of air pollution control. The method is characterized in that an organic absorbing solvent is prepared by mixing alcohol amines, alcohols and/or water in a certain ratio, industrial waste gas with hydrogen sulfide gas is subjected toselective absorption before thermal desorption, hydrogen sulfide gas with a concentration of greater than 95% is acquired by concentrating, the high-concentration hydrogen sulfide gas is subjected toreaction with sodium hydroxide, ammonia water and other alkaline materials to prepare sodium sulfide, sodium hydrosulfide, ammonium sulfide solution and other products; the hydrogen sulfide gas can bedissolved stably in the organic solvent above, so that after the organic solvent absorbs the hydrogen sulfide gas, local storage and transportation can be performed directly; the high-concentration hydrogen sulfide gas is made by thermal desorption and is applied to the synthesis of chemical products and other uses; the desorbed organic solvent can be returned to the absorbing phase for cyclic use. The method herein is simple, low in cost, low in energy consumption, and free of wastewater or waste residue.