428results about How to "Guaranteed long-term use" patented technology

The invention discloses an antibacterial amidoxime-group seawater-extracted uranium absorbent and a preparation method thereof. A quaternary ammonium salt monomer and an acrylonitrile monomer are grafted to a natural fiber monomer with a graft polymerization method, hydroxylamination preparation is then performed, and the absorbent contains, by weight, 0.1-1.0mmol/g of a quaternary ammonium group and 0.2-7.5mmol/g of an amidoxime group. The invention further discloses a preparation method of the antibacterial seawater-extracted uranium absorbent. In preparation, raw materials including, by weight, 10 parts of a natural fiber material, 10-90 parts of acrylonitrile, 10-90 parts of vinyl quaternary ammonium salt, 1-5 parts of a redox-initiation-system oxidizing agent, 1-5 parts of a reducing agent, 10-30 parts of oxammonium hydrochloride and 300-600 parts of deionized water are involved, and the processing step includes grafting reaction under the redox initiation system and amidoximation reaction of graft products. The antibacterial amidoxime-group seawater-extracted uranium absorbent is rich in source of fiber based materials, natural renewable, low in price and low in preparation cost, and the antibacterial rate of the absorbing material on Escherichia coli and staphylococcus aureus reaches over 95%; as compared with a conventional seawater-extracted uranium absorbent, the antibacterial amidoxime-group seawater-extracted uranium absorbent has the advantage that the adsorption of uranium ions by the obtained material is increased by about 25%.

The invention relates to a method for treating waste water containing vanadium and chromium. The method comprises the following steps of: (1) adsorption: adopting an adsorbing medium to adsorb vanadium and chromium ions in the waste water containing vanadium and chromium; (2) desorption: adding a desorption agent into the adsorbing medium containing vanadium and chromium ions obtained in the step (1) to carry out desorption; (3) vanadium precipitation: adding alkaline substances into desorption solution, stirring to be uniform, and then filtering to obtain a calcium-vanadate product and vanadium-precipitated supernant; (4) chromium crystallization: carrying out evaporating concentration and cooling crystallization on the vanadium-precipitated supernant to obtain a sodium-chromate crude product and crystallizing mother liquor; (5) recrystallization: heating and dissolving the sodium-chromate crude product, and carrying out cooling crystallization to obtain a sodium-chromate product and cooling-crystallizing mother liquor; and (6) returning of the crystallizing mother liquor: returning the crystallizing mother liquor to the step (2) as the ingredient of the analysis solution to be repeatedly utilized. The method has the advantages that the recovery rate for the vanadium and chromium elements in the waste water reaches 99.9% or higher, simultaneously high-purity calcium vanadate and sodium chromate are obtained, and no waste water and waste residue are generated in the whole process.

The invention discloses a self-purification type air purifier, and belongs to the field of air purifiers. The self-purification type air purifier comprises a primary filter net, an electrostatic dust collector located above the primary filter net and a control cabinet electrically connected with the electrostatic dust collector; the side face of the primary filter net and the side face of the electrostatic dust collector are each provided with a spraying device and a heating device, and the control cabinet is electrically connected with the spraying devices and the heating devices; the control cabinet controls the spraying devices to flush the primary filter net and the electrostatic dust collector, and the control cabinet controls the heating devices to dry the primary filter net and the electrostatic dust collector; according to the self-purification type air purifier, a cleaning device is arranged to be capable of effectively removing pollutants gathered on the electrostatic dust collector, the primary filter net and other components, the harmful effect caused by covering of the pollutants on the electrostatic dust collector, the primary filter net and other components can be removed, and the service life of the air purifier is prolonged.

The invention provides a polyurethane waterproof roll, production equipment and process, a composite waterproof layer and practice thereof. A method of achieving the composite waterproof layer comprises the steps that firstly, underlayer polyurethane waterproof coating is manufactured, then the upper-layer polyurethane waterproof roll is manufactured, and the coating and the roll are bonded into an organic integrity which has certain interface shearing and peeling strength by the coating. Through the polyurethane waterproof roll, the solidification and film forming process of the polyurethane waterproof coating which is achieved at the construction site previously is moved forward, the polyurethane waterproof roll is produced ready in a factory through special equipment, the thickness is uniform and consistent, and the category and function are diversified. By means of seamless connection characteristic of the coating and uniform thickness characteristic of the roll, quality of a waterproofing project can be improved. The practice has the advantages that the coating and the roll are compatible in material property, the coating is smooth to cure and large in cohesive force, the cohesion between the coating and a substrate is powerful, the roll is tight to overlap or in butt joint, the coating is bonded to the roll sufficiently, the construction site demands no open fire or electrical heating operation, the safety, energy conservation and environmental protection are achieved, and the characteristic of 'liquid rubber' of the polyurethane material is given full play.

The invention discloses a Web of Things micro energy self-collecting micro electro mechanical systems (MEMS) sensing pre-storage system. The Web of Things micro energy self-collecting MEMS sensing pre-storage system comprises a composite micro energy power module, a sensor module, a micro processor module and a wireless transmission module, wherein the micro processor module is used for coordinating working of a wireless sensor network (WSN) node, processing data sent by the sensor module and controlling working of the wireless transmission module; the wireless transmission module is used for data communication between the WSN node and other WSN nodes, the WSN node and a gateway, and the WSN node and cloud. By optimizing a plurality of main modules, power consumption of the whole system is reduced from multi-angle, meanwhile the composite micro energy power module which is capable of effectively supplying power for the whole system is further provided, and therefore long-term use of WSN node power supply is guaranteed, and working performance and stability of the WSN node is improved.

The invention relates to a high-temperature high-pressure temperature-reducing pressure-reducing device capable of being started and stopped rapidly. The device comprises a pneumatic actuating mechanism, a steam mixing pipeline and a pressure-reducing valve, wherein the steam mixing pipeline is connected with a steam inlet and a steam outlet; the pressure-reducing valve is composed of a valve body, a valve plug, a valve seat and an upper valve cover; and a water-supplying temperature-reducing system, a safety protection system and a dewatering system are arranged on the steam mixing pipeline. The device provided by the invention has the beneficial effects that the device is a steam temperature-reducing pressure-reducing system which is connected in parallel with a steam turbine, can introduce steam generated by the boiler to a steam pipeline or a condenser of the next stage pressure and temperature, the device has the functions of rapid starting and stopping, safe overflowing, safe protection and the like, and is mainly applied to industrial fields, such as a thermal power unit, the coal chemical industry and the coal oil.

The invention relates to a catalyst and a preparation method thereof, in particular to a flue gas denitration catalyst applied at a low temperature and a preparation method thereof. TiO2 doped with one or multiple of Al2O3, SiO2 or ZrO2 is taken as a carrier, glass fiber is taken as a skeleton, and vanadium compounded with one or multiple of tungsten, molybdenum, cerium, manganese, niobium or phosphorus is taken as an active component. The flue gas denitration catalyst comprises the carrier, active precursor aqueous solution, glass fiber, stearic acid, lactic acid, wood pulp, monoethanolamine, polyoxyethylene, methylcellulose, ammonia water and water. The catalyst has good low-temperature denitration activity; and within the temperature of 150-300 DEG C, denitration efficiency of the catalyst is up to 85% or above. The catalyst has high sulfur-poisoning resistance and water-poisoning resistance capacity, and long-term use of the catalyst at a low temperature is guaranteed. Further, the catalyst can be applied to fields such as glass production, coking, cement, industrial kilns, waste incineration and chemical engineering widely. The invention further provides a preparation method of the catalyst, which is reasonable in processing.

The invention discloses a structure of a photoelectric composite flame-proof high-voltage cable and a preparation method thereof, belonging to the filed of cables. The structure comprises three high-voltage power line cores, a control cable core, an earthing cable core, an optical cable, three reinforcing cores, a reinforcing layer, an inner sheath and an outer sheath which are stranded into a cable according to cable structure design requirements. The cable provided by the invention has the advantages that the voltage-level of the cable is improved, the optical signal transmission can be carried out, the signal distortion problem of the cable in laying space, signal transmission and conversion is solved, the difficulty that the cable is easy to fracture in cable laying in a complex state is solved, further the service life of the cable is prolonged, and the cable provided by the invention also has the advantages of simple structure and simple process, and is easy to popularize.

The invention discloses a three-phase separator which is provided with a tank (1), a cyclone separator (3), a transformer (9), a distributor (19), a plate electrode (6) and the like. The inner cavity of the tank is divided into a gas-liquid separation chamber (21) and an oil-water separation chamber (22) through a separator plate (18). A gas returning pipe (5) is arranged between the top of the cyclone separator and the top of the gas-liquid separation chamber. A spiral plate (31) is arranged on the inner wall of the cylindrical shell of the cyclone separator. The distributor is arranged at the lower part of the oil-water separation chamber, and a liquid conveying pipe (15) is arranged between the lower part of the gas-liquid separation chamber and the distributor. The plate electrode is a single-layer horizontal plate electrode, is arranged on the upper part of the oil-water separation chamber and is composed of a steel wire rope with an insulating layer and several insulating support plates and constant-pitch rods. The three-phase separator provided by the invention is mainly used for three-phase separation of oil, gas and water phases of crude oil produced from oilfields and oil wells.

The invention relates to an electronic payment terminal product, in particular to a method for automatically identifying pluggable audio devices and a terminal. When an audio device is plugged into the terminal, a signal is provided for a micro-programmed control unit (MCU) of the terminal so as to judge a plug state of the audio device and control the terminal to perform powering-on operation of by utilizing internal electrical characteristics of an audio interface of the audio device. When the audio device is pulled out of the terminal, another signal is provided for the MCU so as to judge a pulling-out state of the audio device and control the terminal to perform powering-off operation. The method can ensure long-term usage of the terminal and further strengthens application compatibility of mobile payment terminals to various audio devices.

The invention relates to a pulse vibrator which is characterized in that a shell of an electromagnetic hammer pulse vibrator is internally provided with a coil assembly and a spring which are fixed bybolts, nuts and washers; a vibrating rod of an electromagnetic hammer aligns with a dowel bar of a dust remover; a rainwater-proof seal gasket is tightly clamped by a shrouding ring; the dowel bar isfixedly connected with a component in an electric field and has a perpendicularity not larger than 1 mm and a positioning sleeve is arranged outside the dowel bar; and the pulse vibrator is installedon the upper part of an electric dust remover and fixed together with the dust remover through bolts, nuts and washers. The vibrating rod of the pulse vibrator has a lifting height up to 400 mm, andthe pulse vibrator needs no special maintenance and detection under the normal working condition and can be used for a long time without lubrication. A discharging electrode and a dust-collecting electrode are respectively vibrated, the vibration impact strength and the vibration period are adjusted section by section, the vibration pitch time can be adjusted, and the vibration periods of all electric fields are mutually independent.

The invention relates to a multifunctional efficient air purifying agent and a using method thereof, and belongs to the technical field of indoor air purification and treatment. The multifunctional efficient air purifying agent is made of food grade raw materials in a compound mode and composed of water, a bactericide, a formaldehyde-removing agent, a catalyst, TVOC dissolving agent and a stabilization dispersing agent. The using method of the multifunctional efficient air purifying agent comprises the steps that the purifying agent is sprayed on a rotating wheel film forming device through a feeding box to form a liquid film, and polluted air is sucked by a fan to pass through the liquid film to be purified. The multifunctional efficient air purifying agent is non-toxic and innocuous and has the effects of rapidly removing bacteria, removing formaldehyde, lowering PM2.5 and TVOC and the like in a long-acting mode. The using method overcomes adverse effects caused by direct contact when an air purifying agent is sprayed in air traditionally. According to the using method, the air purifying agent is detected in a 30 m<3> standard experimental cabin, and the formaldehyde removing rate, the bacteria removing rate, the PM2.5 removing rate and the TVOC removing rate within one hour can be higher than 95%.

The invention discloses an automatic cleaning system for a video capture window of an underwater monitoring device. The automatic cleaning system comprises a disc-shaped base, a video capture module and a transparent window cover. The outer surface of the window cover is a rotation curved surface which is formed in the manner that a busbar with one end on the center axis rotates around the center axis by a circle. The center axis of the window cover is coaxial with the center axis of the base. A cleaning scraper is arranged on the outer wall of the window cover in a striding manner. The inner edge of the cleaning scraper is attached to the outer surface of the window cover in a matched manner. The cleaning scraper is hinged to the window cover and can rotate around a hinge shaft. The part, between the cleaning scraper and the window cover, of the hinge shaft is coaxial with the center axis of the window cover. The cleaning scraper is driven by external force to rotate around the hinge shaft.

An ink jet recording liquid exhibiting superior image color and improved color image fastness is disclosed, comprising a medium and an oil-soluble dye represented by the following formulas

The invention discloses a normal position zero gas back-blowing type CEMS (continuous emission monitoring system) probe on-line calibration method and device, and belongs to fume on-line continuous monitoring and calibrating. According to the device, a probe is not extracted, a probe measuring region is provided with a shield, pressure for providing a system for performing back-blowing is regulated through shielding the probe measuring region, excessive back-blowing is performed on the measuring region, and fume in the measuring region is evacuated; zero air is fully filled in a calibration pond, the zero creep calibration operation is performed on the system, the calibration pond is fully filled with range point standard air, and the range drifting calibration operation is performed; the calibration is finished, the calibration pond is filled with the zero air again; and finally, the shield in the measuring region is withdrawn, the compressed air back-blowing pressure is regulated, and the system is at a normal measuring condition. The normal position zero air back-blowing type CEMS probe on-line calibration method and device provided by the invention can perform completed original light path on-line calibration under the condition that the probe is not extracted in a measuring system, and a measuring light path and a calibration light path are completely consistent.

The invention relates to a field self-charging image recognition infrared imager. A technical scheme used is as follows: the field self-charging image recognition infrared imager comprises an anti-corrosion shell, a ventilated window, a filter screen, a movable cover, a view finder, an infrared lens, a protective cover, a starting switch, a stopping switch, a movable fixture, a wiper, a sliding shaft, an image acquisition module, a sliding rail, a master control module, an image recognition module, a motor control, a video interface, a cable and a self-charging device. According to the field self-charging image recognition infrared imager provided by the invention, an infrared projector is placed in regions unattended at night or regions with difficult terrains, through infrared image acquisition, acquired images are sent to the image recognition module, target detection is executed through a SVM classifier, and after a human target is discovered, a wireless communication module transmits position information of the infrared imager to an information center; in order to guarantee long-term use of instruments in the field, a wind driven generator and a solar energy are used for hybrid power generation for providing sustainable green energy for the instruments. The field self-charging image recognition infrared imager is suitable for preventing illegalities, such as illegal immigration, poaching and unlawful felling, or distress of travel personnel caused by crossing rivers and hills at night, and so on.

The invention discloses an automatic defense door for passing of cars. The automatic defense door includes a wall body, three elastic spaces with upward openings are formed in the upper side of the wall body; a blocking power space is arranged on the lower side of the elastic space on the left side; a blocking space and a left transmission space are arranged on the left side of the blocking powerspace; a door fence starting space is arranged on the lower side of the elastic space on the right side; a brush sliding space is formed in the upper side of the sweeping power slideway; the upper side wall of the brush sliding space communicates with a sweeping space; and movement spaces are arranged on the top wall of the sweeping space in a bilateral symmetry mode. Through the linkage relationof the rubber pressed blocks in the three elastic spaces, opening and closing of the pure mechanical defense door and blocking of a rear car can be achieved, the car is prevented from continuously passing through the defense door, meanwhile, extra energy consumption is not needed, and the pure mechanical defense door is more environmentally friendly.

The invention discloses a coating machine capable of spraying on the two sides of a non-woven fabric and recovering dyes, and belongs to the technical field of coating machines. The coating machine includes a base, a cloth unwinding device and a cloth winding device. A cloth tensioning cleaning mechanism is arranged at the position, located on the front side of an assembly plate, of the left sideof the top of a supporting platform, a dye spraying mechanism is arranged at the position, located on the front side of the assembly plate, of the top center of the supporting platform, and a drying mechanism is arranged at the position, located on the front side of the assembly plate, of the right side of the top of the supporting platform. The coating machine is provided with the cloth tension cleaning mechanism, a U-shaped frame in the middle can be driven to be adjusted in lifting and lowering modes by driving a linear telescopic motor so as to adjust the tension of cloth, with the transmission of the cloth and through the affection of friction, remaining dust on both sides of the cloth is absorbed through a dust sticking film on the outer walls of tension rollers of the cloth tensioncleaning mechanism while the tension rollers rotate, so that the subsequent operations can be met, after cleaning is carried out, bumps on the surface of the cloth due to impurities do not exist, andthe production demands are met.

The invention discloses an EVA (ethylene-vinyl acetate) locating adhesive tape for a crystalline silicon solar cell module. The EVA locating adhesive tape comprises an adhesive tape base material and a solvent adhesive layer arranged on the adhesive tape base material, wherein the adhesive tape base material comprises the following components by parts by weight: 93-97 parts of EVA resin, and 3-7 parts of performance additive. The adhesive tape base material is made of EVA resin, in the lamination and solidification process of the modules, the adhesive tape base material and the EVA adhesive film can be melted and solidified into a whole, the adhesive tape does not have bubbles and layers, so that the EVA locating adhesive tape not only can play a role in locating battery pieces, but also has good adhesive property and ageing resistance, and ensures that the solar cell module can be used for a long time.

The invention discloses a plumbing pipe fitting cutting device. The plumbing pipe fitting cutting device comprises a workbench; a cover body is fixedly connected to the bottom surface of the workbench; a rotating block is embedded in one side wall of the cover body; the rotating block is rotationally connected with the cover body; a rotating rod is fixedly connected to one side wall of the rotating block; the other end of the rotating rod penetrates into the cover body and penetrates out of the cover body to be fixedly connected with a handle; a cutting box body is fixedly embedded in the topsurface of the workbench; a second cross rod is fixedly connected to the top ends of the two third vertical rods; a hydraulic cylinder is fixedly connected to the bottom surface of the second cross rod; a hydraulic station is connected to the hydraulic cylinder through a pipeline; the model of a three-phase asynchronous motor is YN160L-4; the cover body is made of an alloy steel material; and theconnecting modes between the workbench and the third vertical rods are welding. According to the plumbing pipe fitting cutting device, the practicability is high; the structure is reasonable; a cutting blade and a pipe fitting can be effectively cooled; the working efficiency is enhanced; the quality of a finished product is improved; shock can be effectively absorbed; the long-time use of the blade can be guaranteed; the pipe fitting can be effectively clamped; and the cutting accuracy can be guaranteed so that the quality of the finished product is improved.