18results about How to "Meet purification needs" patented technology

The invention belongs to the technical field of preparation of novel electrocatalysts, and particularly relates to preparation and application of an angstrom confinement electrocatalyst for selectively activating molecular oxygen to produce hydroxyl radicals. The preparation method comprises the following steps: taking 2H-phase MoS2 as a precursor, loading metal single atoms on the surface of the precursor, and intercalating alkali metal cations; the angstrom confinement catalyst is 1T-phase MoS2 loaded with metal single atoms. The angstrom confinement catalyst provided by the invention is high in three-electron selectivity, can remarkably expose catalytic active sites, accelerates mass transfer of reactants, generates active oxygen species in a penetrating reactor, realizes high hydroxyl radical generation rate and utilization efficiency in an angstrom channel, is simple in preparation method, and has good electrochemical stability. The method lays a foundation for Angstrom confinement catalysis, and reflects the importance of the Angstrom confinement strategy in the design of a high-efficiency catalyst for water pollution control.

The invention relates to the technical field of oil fume purification, and provides a catering oil fume purification treatment system and a control method thereof. The catering oil smoke purification treatment system at least comprises a smoke discharge amount detection device, an air uniformizing net, an air uniformizing net control device, an electric field purification module, a purification module use monitoring device and an air outlet, the smoke exhaust amount detection device is arranged in the front side area of the air uniformizing net, and the air uniformizing net is installed at an air inlet of the electric field purification module; the smoke exhaust amount detection devices are respectively connected with the air uniformizing net control device, and the air uniformizing net control device is connected with the purification module use monitoring device; the electric field purification module comprises at least two purification sub-modules, and each purification sub-module is independently communicated with the upstream module and the downstream module; the air uniformizing net comprises at least two air uniformizing subnets, and the air uniformizing net control device is used for switching the opening or closing state of at least one air uniformizing subnet. According to the scheme provided by the invention, the applicability adjustment of the flue gas displacement of the adjusting system can be improved.

The utility model discloses a multilayer combined filter structure of desulfurization dust remover, including tower body, at least one layer composite filler layer is arranged in the tower body, the composite filler layer is multilayer structure, and the regular shaped filler area, transition flow guide area, bulk packing area and support grating from top to bottom include successively, the regular shaped filler area and bulk packing area outside all are provided with fixed frame, the regular shaped filler area and bulk packing area are filled in the corresponding fixed frame respectively, through the high specific surface area of bulk packing, can effectively strengthen gas liquid contact in bulk packing area, improve mass transfer rate, and the low resistance characteristic of regular shaped filler can avoid partial pressure drop surge in regular shaped filler area, realizes the balance of desulfurization efficiency and energy consumption, reduces operating energy consumption while guaranteeing desulfurization effect.

The invention belongs to the field of catalyst material preparation, and particularly relates to a preparation method and application of a metal oxide monolithic catalyst, and the metal oxide monolithic catalyst provided by the invention is prepared by hydrothermally loading a copper-manganese composite oxide on a foam metal substrate, an oxide heterogeneous interface can be formed on the surface of the catalyst prepared by using the method, ozone is activated by using the electron delocalization effect of the oxide heterogeneous interface, high-active oxygen species are generated, activation energy required by reaction can be reduced without high temperature and high pressure, and meanwhile, the catalyst has good catalytic activity. The monolithic composite metal oxide catalyst is pretreated with hydrogen peroxide, a multi-stage structure can be formed on the surface of a substrate, and adsorption of organic pollutants can be greatly promoted through treatment of a surfactant.

The utility model aims to solve the problems that the existing reactor is large in use volume, high in cost and incapable of being combined for use. The small combinable reactor structure comprises a main frame and a reaction module, the main frame is hollow, and the reaction module is arranged in the main frame; the bottom of the main frame is provided with a first air inlet and outlet for air circulation, and the top of the main frame is provided with a second air inlet and outlet. Closed plates are arranged on the side surfaces of the middle part of the main frame, and the middle part of the main frame is used for arranging a reaction module; the first air inlet and outlet in the bottom of the main frame comprises three first air openings, and the three first air openings are located in the three side faces of the bottom of the main frame correspondingly. A connecting structure for connecting first air ports of other reactors is also arranged on the first air port; through the combined connection of the reactors, the purification requirements of flue gas with different displacements can be met, and the size of a single reactor is small.

The utility model provides a kind of hanging air purifier, relate to air purifier technical field.A kind of hanging air purifier, comprising: shell, air inlet and air outlet are provided on shell;Support frame, support frame is set in shell, and first accommodating space is provided in support frame;Filter element, filter element is set in first accommodating space;Plasma generating device, plasma generating device is set in first accommodating space, and filter element is set between plasma generating device and air inlet;Wherein, plasma generating device includes first frame and multiple plasma generating modules set in first frame.By being provided with plasma generating device in hanging air purifier, air is further treated by sterilization, deodorization etc. after passing through physical filtration, improve purification efficiency, and plasma generating device uses modular design to use multiple plasma generating modules, facilitate flexible configuration.

The invention relates to the technical field of kitchen oil fume purification, and discloses a commercial kitchen environment-friendly oil fume purification energy-saving device which comprises an air inlet pipeline, a mounting cover is mounted at the air outlet end of the air inlet pipeline, and a filter element cylinder is rotatably mounted in the mounting cover; the whole filter element cylinder is composed of an installation framework and filter element plates installed on the front installation portion, the rear installation portion, the left installation portion and the right installation portion in the installation framework, the leftmost filter element plate is communicated with the air outlet end of the air inlet pipeline, and an air outlet pipe communicated with the center in the filter element cylinder is installed at the top end of the installation cover. And a conversion driving mechanism for driving the filter element cylinder to rotate 90 degrees once is mounted at the outer top of the air inlet pipeline. According to the environment-friendly oil fume purification energy-saving device for the commercial kitchen, through the unique structural design, especially the alternate working mode of the filter element cylinders and the filter element plates in the filter element cylinders, self-cleaning is achieved, and then oil fume filtering operation is conducted continuously. The creative design has many advantages in a commercial kitchen environment.

The utility model relates to a disposable primary filter cover and an air purifier, the whole filter cover is of a barrel-shaped structure, and the filter cover comprises a filter material layer, an elastic band structure and a visual developing area, the filtering material layer is of a main body structure and is used for filtering large-particle pollutants in air; the elastic band structures are arranged at the two ends of the barrel-shaped structure and used for being connected and fixed to the outer portion of a barrel-shaped filter element of the air purifier in a sleeving mode. The visual color developing area is arranged on the filtering material layer and is used for generating color change along with pollution load change, so that the use state of the filtering cover can be observed and judged from the outside. Through a convenient installation structure and a visual prompt function, the use convenience of the air purifier and the perception experience of a user are improved, meanwhile, the main filter element of the air purifier can be effectively protected, and the overall use cost is reduced.

The invention discloses a vertical spray washing tower capable of improving waste gas treatment efficiency in a rotational flow diffusion mode, and belongs to the technical field of chemical waste gas treatment equipment, the vertical spray washing tower comprises a vertically arranged tower body structure and a circulating liquid system; a spraying mechanism and a filler layer are mounted in the tower body structure, and the tower body structure is communicated with a gas inlet section and a gas outlet section; the air inlet section extending into the tower body structure extends downwards in an inclined manner, and a rotational flow diffusion assembly is mounted at a pipe orifice of the air inlet section; when the waste gas of the gas inlet section passes through the rotational flow diffusion assembly, the waste gas is uniformly diffused to the lower part in the tower body structure in a rotational flow manner. The gas inlet section is obliquely arranged downwards and is matched with the rotational flow diffusion assembly, so that waste gas enters the tower body and then moves downwards along a spiral path, on one hand, the initial retention time of the waste gas in the tower is prolonged, and on the other hand, the concentrated entering waste gas is uniformly dispersed to the lower space of the tower body through the rotational flow effect, and local gas mass gathering is avoided; therefore, the overall treatment efficiency is obviously improved.

The utility model belongs to the technical field of purifier filter core, and disclose a modularization can be spliced combination's air purifier filter core, including base, the outside installation of base has the dust receiving mechanism, the top of base is fixed with filter mechanism, the top of filter mechanism is fixed with top seat, the top of top seat is fixed with splicing mechanism, the dust receiving mechanism includes first magnetic block, dust receiving disc and second magnetic block, first magnetic block is fixed in the outside of base, the outside of base is connected with dust receiving disc and touches, the inside fixed of dust receiving disc has second magnetic block, the utility model discloses through setting cooperation of outer filter plate, inner filter plate, filter cloth etc. structure, make device can high -efficiently filter the pollutant in air, and outer filter plate and inner filter plate form double -deck support, and the wave -shaped filter cloth in the middle increases the filter area, and cooperates the activated carbon plate and activated carbon column in the inside, can multilayer adsorb dust, harmful gas, significantly improve the filtration effect, satisfy the purification demand of different scenes.

The utility model discloses hydroxyl food purification equipment which comprises a purification device and a food purification tank, the purification device is connected with the food purification tank in an assembly mode, the purification device comprises a hydroxyl generator, a mounting seat and an assembly frame, the hydroxyl generator is arranged on the mounting seat and located in the food purification tank, the mounting seat is arranged in the assembly frame, and the assembly frame is arranged on the mounting seat. And the assembly frame is positioned above the food purification tank. By adopting a modular structure, the device can be flexibly arranged at any position of a production line according to production requirements, the purification requirements in different modes are met, and a plurality of purification procedures can be set for multi-stage and multi-time purification, so that the purification effect is ensured; the hydroxyl generator is installed in a hoisting immersion mode, normal use and operation of existing equipment are not affected, the application range is wide, installation is achieved through a cage type structure, the contact area of the purifier and cleaning water is increased, the hydroxyl generating efficiency and the purifying effect are improved, and meanwhile equipment maintenance is facilitated.

The application discloses a reverse cyclone type particle bed flue gas purification system and a purification method thereof, and relates to the technical field of high-temperature flue gas purification. The reverse cyclone type particle bed flue gas purification system comprises a reverse cyclone type moving bed unit, which comprises a storage bin, a feeding mechanism connected with an outlet of the storage bin, a moving bed body, an outlet of the feeding mechanism being communicated with the moving bed body, a gas outlet being arranged at a side wall of the moving bed body, a cyclone unit, an outlet at a lower end of the moving bed body being communicated with the cyclone unit through a gas-solid contact unit, a gas inlet being arranged at a side wall of the cyclone unit, an elutriation cyclone separator, a solid outlet of the cyclone separator being communicated with the storage bin, and an outlet at a lower end of the cyclone unit being communicated with a tangential inlet of the cyclone separator through a lifting mechanism. The application can realize efficient dust removal under a higher treatment capacity and meet the requirement of long-period stable operation.

The utility model relates to the technical field of waste gas purification, in particular to unpowered waste gas purification equipment which comprises an equipment main body and a plurality of gas treatment components, the equipment main body is provided with a cavity as well as an air inlet and an air outlet which are communicated with the cavity, the air inlet is communicated with the top of the cavity, the air outlet is communicated with the bottom of the cavity, and the equipment main body is further provided with a plurality of drawing openings which are formed at intervals in the vertical direction; each gas treatment assembly comprises a separation unit and a gas treatment unit, the separation unit of each gas treatment assembly divides the cavity into a plurality of gas cavities, the gas treatment units are in sliding connection with the separation units, the gas treatment units are arranged corresponding to the drawing ports, and the gas treatment units can slide into or out of the cavity through the corresponding drawing ports; the gas treatment unit is communicated with the two adjacent gas cavities and is used for purifying the gas step by step. The device does not need external power, and is simple in structure, easy to produce, capable of carrying out multi-stage purification treatment on multiple waste gases, high in flexibility and wide in application range.

The invention discloses a multifunctional catalyst for medium and low temperature flue gas purification and a preparation method thereof, belonging to the technical field of environmental functional materials and atmospheric pollutant control. A multifunctional catalyst for medium and low temperature flue gas purification is composed of the following components: CuO, Co3O4 and MgO, wherein the mass of CuO accounts for 0.5%-10% of the mass of the CoMgO composite oxide carrier, and the molar ratio x of the Mg element to the total amount of Co-Mg metal elements in the CoMgO composite oxide carrier is 0.05-0.25. The invention also specifically discloses a preparation method of the multifunctional catalyst for medium and low temperature flue gas purification, and the multifunctional catalyst is simultaneously applied to CO catalytic oxidation and CO reduction NO reaction, and exhibits good medium and low temperature catalytic activity, long-term operation stability and water resistance, and can be applied to industrial flue gas treatment under different working conditions or flue gas composition changes.

The utility model discloses a residential building oil smoke purification device which comprises an exhaust connecting pipeline and a tee joint, one end of the exhaust connecting pipeline is connected with a building chimney, the other end of the exhaust connecting pipeline is connected with an unpowered exhaust fan, one end of the tee joint is connected with the exhaust connecting pipeline, and the other two ports of the tee joint are connected with one end of a first ventilation pipeline and one end of a second ventilation pipeline respectively. The other end of the first ventilation pipeline is connected with one end of a first purification and exhaust all-in-one machine, the other end of the second ventilation pipeline is connected with one end of a second purification and exhaust all-in-one machine, and a first electric valve, a second electric valve and a third electric valve are arranged in the smoke exhaust connecting pipeline, the first ventilation pipeline and the second ventilation pipeline respectively. By arranging the first ventilating pipeline, the second ventilating pipeline, the first purifying and exhausting all-in-one machine, the second purifying and exhausting all-in-one machine, the first electrically operated valve, the second electrically operated valve and the third electrically operated valve, dynamic adjustment of the lampblack treatment capacity is achieved, the requirement for time-phased purification of lampblack emission of a residential building is met, and the whole device is compact in structure, small in occupied area and high in practicability.

The present invention relates to the field of air purification, and in particular to an energy-saving air purifier, including a main body, a spring-loaded mounting seat, a limiting frame, filter material, a fan and an electric rotating plate, etc.; the main body is provided with a plurality of ventilation plates; the main body is provided with a through slot; the main body is provided with a spring-loaded mounting seat and a limiting frame; the spring-loaded mounting seat and the limiting frame are provided with filter material together; the main body through slot is provided with a fan and an electric rotating plate, and the electric rotating plate is located above the fan. The present invention scrapes off the dust and impurities trapped on the filter material through the top of the collection frame, and makes the dust and impurities in the collection frame slide into the storage frame I, and the dust and impurities slide into the storage frame I for collection, without manual maintenance, thus improving the user experience, and after the collection frame scrapes off the dust and impurities trapped on the filter material, there is no need for the present invention to operate at a higher power, and the purification requirements of the working environment can be met, thereby reducing the energy consumption of the present invention.

The utility model discloses a purification device of 2, 3, 5, 6-tetrachloropyridine. Comprising a crude product storage tank, a first-stage storage tank, a liquid alkali storage tank, a first-stage rectifying tower, a neutralizing tank, an extraction layering tank, a second-stage rectifying tower, a third-stage rectifying tower, a waste storage tank, a triple-effect evaporation device, a crude salt storage tank, a low-boiling-point mixture receiver, a finished product storage tank, a reboiler, a first condenser, a second condenser and a third condenser. The crude product storage tank is connected with an inlet of the first-stage storage tank through a pipeline, the side surface of the first-stage storage tank is connected with an inlet of the first-stage rectifying tower through a pipeline, and a bottom outlet of the first-stage storage tank is connected with an inlet of the reboiler through a pipeline; according to the utility model, multiple functions of mixing, extracting and rectifying are combined, high-purity 2, 3, 5, 6-tetrachloropyridine can be produced so as to meet the purity requirement of downstream products on 2, 3, 5, 6-tetrachloropyridine, and meanwhile, high-concentration salt-containing wastewater generated in the extraction process is subjected to triple-effect evaporation to obtain industrial salt for use.

The utility model relates to the technical field of water treatment, in particular to water treatment equipment. The water treatment equipment comprises three schemes. The first water treatment device comprises a first filter, a second filter, a security filter, a reverse osmosis purifier and a water production tank which are sequentially arranged in the water flow purification direction. The second water treatment device comprises a first filter, a second filter, a security filter, an ultrafiltration purifier and a water production tank which are sequentially arranged in the water flow purification direction. The third water treatment device comprises a first filter, a second filter, a security filter, an ultrafiltration purifier, a security filter, a reverse osmosis purifier and a water production tank which are sequentially arranged in the water flow purification direction. According to the utility model, water can reach the standard of direct drinking water after being treated, and the problem that the ultrafiltration membrane and the reverse osmosis membrane are easy to block can be solved by virtue of the security filter.