36results about How to "Meet the requirements of purification" patented technology

The invention relates to a dry method combined desulfurization and denitration technology and device for activated coke. The desulfurization and denitration device is a multi-section diameter-expanding fluidized bed concurrent with a gravity field. Exhaust gas containing NOx and SO2 firstly enters an ascending flue at the front end of a desulfurizing tower, cooling and humidifying are performed bya water atomizing nozzle, and ozone sprayed in the ascending flue oxidizes NOx and SO2 into high-valent-state NOx and SOx respectively; the exhaust gas enters the top of the fluidized bed and is mixed with the activated coke discharged from a stock bin, and the activated coke is fluidized; the activated coke moves downwards and enters diameter-expanding sections to finish the desulfurization anddenitration adsorption reaction; the exhaust gas enters a gas-solid separation device, the separated activated coke is fed into an desorption tower for regeneration, and enriched NO2 and SO2 gas are obtained respectively; finally, the regenerated activated coke is sent to the stock bin to participate in desulfurization and denitration again. The integrated desulfurization and denitration technology has the advantages of high efficiency, simple process, considerable comprehensive benefits and the like.

The invention belongs to the technical field of medical instruments and discloses a medical breathing machine which comprises an inspiration tube and an expiration tube. A humidifying tank and a firstwater accumulation cup are sequentially arranged on the inspiration tube in a direction from an inlet to an outlet of the inspiration tube, and a second water accumulation cup is arranged on the expiration tube. A water tank is communicated with the humidifying tank through a water control part, the first water accumulation cup and the second water accumulation cup are provided with water outletscontrolled by respective water outlet electromagnets, and water level sensors are arranged in the first water accumulation cup and the second water accumulation cup respectively. A humidity sensor isarranged in the humidifying tank, each water level sensor is electrically connected with the corresponding water outlet electromagnet through a control box, and the humidity sensor is electrically connected with the water control part through the control box. By the medical breathing machine, the problem of burning of the respiratory tract of a patient or back-blowing of accumulated water to thelung of the patient due to less water in the humidifying tank or excessive water in the water accumulation cups of an existing medical breathing machine can be solved.

The invention discloses a differential centrifugal lampblack separator which comprises a central plate and a plurality of blades, wherein a mounting hole is formed in a circle center position of the central plate; one ends of the blades are uniformly fixed on a side wall of the central plate; the other ends of the blades freely extend in a radial form; the blades are at least distributed in two layers on the side wall of the central plate; and the blades on each layer are successively arranged with the blades on the adjacent layer in a staggered form. According to the invention, the blades are arranged in two layers and are successively arranged in a staggered form, so that a time difference is formed between the first layer of blades and the second layer of blades, equivalently, the lampblack is separated twice when the blades are rotated for one circle; outer rings are not arranged at the other ends of the blades, so that the separated oil can be prevented from flowing back along the blades; the purifying rate reaches 98%; and the blades are fixed in the central plate in a pressing form according to the pressure principle, so that the blades are difficult to fall off and the service life of the separator is longer.

The invention relates to the field of automobile exhaust purification treatment, in particular to a method and device for automobile exhaust treatment. The invention discloses a method for purifying automobile tail gas. The method adopts large-scale negative ions to purify the automobile tail gas. The negative ions neutralize the positively charged gas molecules in the automobile tail gas to form solid particles and deposit them. The large-scale negative ion vehicle exhaust purification device developed according to the method includes: an electronic high-voltage large-scale negative ion generator, a negative ion release end, an installation pipe, and the like. According to the method, an exhaust pipe for purifying automobile tail gas is developed, which comprises: an electronic high-voltage large-scale negative ion generator, a negative ion releasing end, an exhaust pipe and the like. The use of the invention has positive significance for preventing the pollution of the automobile tail gas to the environment and reducing the harm of harmful substances in the automobile tail gas to human health.

The invention relates to a gravity-type bridge pier demolition system construction method. The gravity-type bridge pier demolition system construction method includes the following steps of 1) preparation for construction; 2) driving construction of steel sheet piles; 3) laying of a lifting work platform; 4) laying of a sewage treatment system; 5) bridge pier cutting construction; 6) lifting of bridge pier cut-off section; and 7) removal of bridge pier waste slag. The gravity-type bridge pier demolition system construction method has the beneficial effects that pile-side hoops are arranged onthe outer side walls of steel pipe piles, the driving direction of the steel sheet piles is defined by longitudinal support beams, transverse support beams, outer guide baffles and inner guide baffles, the accuracy of position control for driving of the steel sheet piles can be improved, and coordinated stress of the steel pipe piles and the steel sheet piles can be realized; the annular stiffnessof the steel sheet piles is improved through internal support ring beams and ring beam angle braces, and the stress performance of the steel sheet piles is further improved; and ash settling ponds are arranged on the inner side walls of the steel sheet piles, a first filter plate and a second filter plate are arranged on the inner side walls of the ash settling ponds, and the requirements for multi-layer slag settling treatment in a cofferdam can be met.

The invention discloses a water-soluble sizing agent composition for carbon fibers. The water-soluble sizing agent composition is prepared from the following raw materials in percentage by weight: 2.5 to 6 percent of oxidized starch, 0.25 to 2 percent of isomaltooligosaccharide, 0.25 to 2 percent of glycerinum, 1 to 6 percent of lauryl betaine or cocoamidopropyl betaine and 84 to 96 percent of water. According to the composition disclosed by the invention, the raw materials are low in price and are easily-obtained, and a preparation process is simple and environment-friendly; an existing carbon fiber sizing process can be adopted, and secondary pollution to the environment is avoided; the carbon fibers using the sizing agent have good bundling property and smoothness; after being placed into water, the composition can be dissolved within dozen seconds to several minutes. The composition is a green and environment-friendly sizing agent for water treatment of the carbon fibers.

The invention relates to a ceramic filter element. The ceramic filter element is sintered by adopting kieselguhr, added with attapulgite and bauxite, as a raw material. The invention also relates to a production process of the ceramic filter element. The attapulgite and the bauxite are added on the basis of the kieselguhr serving as a main raw material in the ceramic filter element; the sintered ceramic filter element filters water through mineralization micropores, and can effectively remove particles, suspension and pathogenic bacteria such as escherichia coli, staphylococcus aureus and the like in the water; and the ceramic filter element simultaneously has an adsorption effect, can strongly adsorb pesticide residues of organic phosphorus and carbamate in the water, and totally meets the requirement on purification of collected rain serving as drinking water in the northwest rural areas. The ceramic filter element is designed aiming at the improved ceramic slurry in the production process, and the ceramic filter element can reach very high filter precision.

The invention mainly discloses an urban rainwater purification method and a hydraulic jump type filter used therein. According to the technical scheme of the invention, the urban rainwater purification method comprises the following steps: collecting rainwater, detecting the rainwater, carrying out sedimentation treatment, carrying out pH value treatment, carrying out aeration treatment, carrying out biological purification, carrying out fine filtration, and storing. The used hydraulic pump type filter comprises a first filter cartridge and a second filter cartridge, a detection cavity is arranged at a water outlet, only after water body is detected to be in line with urban water consumption requirements by virtue of a detection head, the water body is conveyed into a water storage tank, otherwise the water body is conveyed into the first filter cartridge and the second filter cartridge to be filtered again. The urban rainwater purification method disclosed by the invention has the advantages that the rainwater is collected and purified, collection, permeation, purification and utilization of the rainwater in an urban range are realized to the utmost extent under the premise of guaranteeing waterlogging prevention and safety of a city, urban waterlogging stress can be effectively alleviated and reduced, purification efficiency is high, water quality of the treated rainwater is effectively improved, utilization of a rainwater resource is promoted, and sponge urban construction requirements are met.

The invention relates to a magnetic separator and coal mine underground water purification system thereof. The magnetic separator comprises a magnetic separation tank, a magnetic separation cavity isformed in the magnetic separation tank, openings are formed in the two ends of the magnetic separation tank, and the two opening ends of the magnetic separation tank are assembled with a group of magnetic separation plates and a magnetic separation frame respectively; two opening ends of the magnetic separation cavity are respectively in circumferential rotation and sealing assembly with one magnetic sealing disc, at least one magnetic plate mounting seat is mounted on the magnetic sealing disc along the circumferential direction of the magnetic sealing disc, and the two coaxial magnetic platemounting seats are respectively assembled and fixed with two ends of a magnetic adsorption plate; the two magnetic separation plates are fixedly assembled with a gathering pipe, a hollow gathering cavity is formed in the gathering pipe, a gathering shell is arranged at the position, corresponding to the magnetic adsorption plate, of the gathering pipe, a hollow gathering groove is formed in the gathering shell, the gathering groove communicates with the gathering cavity, and the end, away from a magnetic return pipe, of the gathering cavity is a closed end; an upper scraping plate and a lowerscraping plate are arranged above the gathering groove, and are respectively clung to the two end surfaces of the magnetic adsorption plate passing through the gap of the upper scraping plate and thelower scraping plate, so that magnetic seeds on the magnetic adsorption plate are scraped off.

The invention relates to the technical field of environmental protection equipment, in particular to a multipurpose purifier. The multipurpose purifier comprises a first clamping ring and further comprises a first purification pipe clamped to one side of the first clamping ring, a second purification pipe clamped to the other side of the first clamping ring, a second clamping ring, and a third purification pipe clamped to the side, away from the second purification pipe, of the second clamping ring. The third purification pipe comprises a first installing pipe, a first rotary ball, an inner rotary rod, locating plates, a first connecting rod clamped between the two locating plates, a first lampholder arranged on the first connecting rod in a sleeving mode, a first lamp, a second connectingrod clamped between the two locating plates, and a second lamp arranged on the second connecting rod in a sleeving mode. Purification parts of the multipurpose purifier can be adjusted and combined according to practical needs, and the diameters of the purification pipes change to meet various different air purification requirements.

The invention provides an air purifying type indoor unit of an air conditioner and a control method thereof. The indoor unit of the air conditioner comprises a driving mechanism and a purifying assembly, wherein the purifying assembly comprising a plurality of purifying units which are arranged in parallel is formed in the purifying assembly; the plurality of purifying units are correspondingly driven to overturn through the driving mechanism so as to switch between a purifying state that an air inlet is covered through the purifying units and a backup state that the purifying units are vertical to the air inlet. The control method comprises the following steps: acquiring a triggering signal that the air conditioner enters a purifying mode; detecting the air pollution parameters of the working environment of the indoor unit of the air conditioner; determining the purifying grade corresponding to the air pollution parameters, wherein the purifying units for performing the purification operation are provided and corresponding to the purifying grade; and controlling the driving mechanism to drive the purifying units corresponding to the purifying grade to overturn to enter the purifying state. According to the scheme, the air purifying type indoor unit and the control method have the advantages that the purifying can be automatically carried out when the air pollution parameters are beyond a start threshold, and the purifying grade can be adjusted in real time during the purifying process, so that the use experience of users can be increased.

The invention discloses a water film cooling method and device for recovering trace yellow phosphorus in yellow phosphorus tail gas. The device comprises a process water pipe, a steam pipeline, a yellow phosphorus tail gas inlet pipe, a water film cooler, a yellow phosphorus storage tank, a cooling water pump and a water cooling tower. According to the device and the method, the yellow phosphorustail gas with higher temperature of 55-58 DEG C is cooled to 40-42 DEG C by the water film cooling device, most yellow phosphorus steam generates liquid yellow phosphorus due to the reduction of the steam pressure of the yellow phosphorus in the cooling process, and the liquid yellow phosphorus is isolated from the cooling pipe by the water film to prevent pipe wall deposition, thereby recoveringthe yellow phosphorus; and more yellow phosphorus is collected, so that the energy consumption is relatively reduced, the content of elemental phosphorus in yellow phosphorus tail gas is reduced, andthe harm of the elemental phosphorus escaping everywhere is reduced.

The invention discloses an internal combustion engine exhaust device. The internal combustion engine exhaust device comprises an exhaust device body; the exhaust device body includes an intake pipe; an expansion chamber is arranged on one side of the intake pipe; a filter device is arranged on one side, far from the intake pipe, of the expansion chamber; a first filter layer and a second filter layer are arranged in the filter device far from the intake pipe in sequence; one side, far from the expansion chamber, of the filter device is fixedly connected with a ternary catalyst through a ventilation pipe; a netty separation plate is arranged in the ternary catalyst, and is provided with a purifying agent; and the purifying agent includes a carrier and a catalyst. Particles included in exhausted gas can be effectively filtered to reduce the atmospheric pollution from the exhausted gas of an internal combustion engine, so that the exhausted gas can achieve the emission standard, the requirement of a traditional exhaust device on purification is satisfied, the noise generated by a main body of the exhaust device is the lowest, the noise pollution on roads is reduced, and the overall silencing effect of the main body of the exhaust device is improved.

The invention discloses a non-chain-type DF / HF laser discharge product small-scale dry-treatment device and belongs to the technical field of laser discharge product treatment. The device solves the problem that the existing laser tail gas treatment device has a large structure, complex adsorbent loading and unloading processes influencing with each other, is inconvenient for storage and transport, and produces environmental pollution. The device comprises a metal casing and one or more sealed purification units. Each one of the one or more sealed purification units comprises a gas inlet pipe, a gas outlet pipe, and an adsorbent storehouse chamber composed of a first transition storehouse chamber, a first storehouse chamber, a second storehouse chamber, a third storehouse chamber and a second transition storehouse chamber orderly arranged from bottom to top. The metal casing is respectively provided with filler openings communicated with the first storehouse chamber, the second storehouse chamber and the third storehouse chamber. The filler openings are respectively used for filling and discharging the adsorbent in the first storehouse chamber, the second storehouse chamber and the third storehouse chamber. Sealing covers for sealing the filler openings are arranged on the filler openings. The device has the advantages of thorough product treatment, small equipment volume, light weight, operation easiness, maintenance convenience and no secondary pollution waste water.