56results about How to "Long-term use" patented technology

The invention discloses a treatment process of photovoltaic cell production wastewater, and relates to the technical field of industrial wastewater treatment. Comprising the following steps: treating dilute acid and dilute alkali through a reclaimed water recovery membrane system to obtain first produced water and reclaimed water concentrated water; treating the concentrated acid wastewater and the reclaimed concentrated water through a fluorine-calcium crystallization system to obtain defluorinated concentrated water and calcium fluoride crystals; treating the RO concentrated water and the defluorinated concentrated water by a hardness removal recycling system to obtain hardness-removed concentrated water and second produced water; treating the concentrated alkali wastewater through an alkali recovery membrane system to obtain purified alkali and alkali-removed concentrated water; hardness-removed concentrated water and alkali-removed concentrated water are treated by a comprehensive physicochemical system, and then are sequentially treated by a high-power concentration membrane system and a zero-discharge crystallization system to obtain solid wastes. The photovoltaic cell production wastewater treatment process provided by the invention achieves an economical and feasible zero-emission solution.

The present invention relates to a functional nutritional composition, in particular to an immunity-enhancing composition. The composition comprises: i) human milk oligosaccharides, wherein the human milk oligosaccharides at least comprise neutral fucosylated human milk oligosaccharides; ii) beta-glucans from one or more sources, wherein the ratio of the human milk oligosaccharides to the beta-glucans is 33 to 50:1, and the composition optionally comprises other nutritional ingredients.

The application relates to the field of medical instruments, and discloses an adjustable over-number blood collection tube sub-division storage device. The storage device comprises an open basket body and a movable baffle detachably installed in the basket body; the top of the movable baffle is provided with a connecting horizontal plate strip, the end of the connecting horizontal plate strip is provided with a buckle, and the buckle is in plug-in fit with the side wall of the basket body. The storage device can realize the straight and upright and anti-toppling placement of multiple blood collection tubes of the same patient by moving the baffle to fit different numbers of blood collection tubes; multiple blood collection tubes of different patients can be placed at intervals at the same time, the space can be distributed according to needs, waste is reduced, and the blood collection tubes are convenient to take; and the storage device is environment-friendly and reusable.

The utility model discloses a flow guide body assembly structure, and belongs to the field of oxygen generators. The flow guide body assembly structure comprises a base plate, a mounting groove is formed in the base plate, the flow guide body assembly structure further comprises a connecting block arranged in the mounting groove, and a first air port and a second air port are formed in the connecting block; the first connecting pipe and the second connecting pipe are arranged on the connecting block; the first communicating groove and the second communicating groove are both formed in the bottom of the connecting block, the two ends of the first communicating groove communicate with the first air port and the first connecting pipe correspondingly, and the two ends of the second communicating groove communicate with the second air port and the second connecting pipe correspondingly; grooves corresponding to the first communicating groove and the second communicating groove are formed in the mounting groove; according to the utility model, the installation and the disassembly are more convenient, the downtime is reduced, the working efficiency is improved, the fixation through a rubber tube or silica gel is not needed after the installation, and the problem of gas leakage is avoided.

The invention discloses a dead steam waste heat utilization system based on steam compression and an operation method, the dead steam waste heat utilization system is used for recycling waste heat of a waste heat pipeline, the system comprises a control module, and further comprises a softened water supply module, a heat exchange module, a steam compression module and a user output module which communicate in sequence. The number of the waste heat pipelines can be one or more, and the multiple waste heat pipelines are connected in parallel. Each waste heat pipeline can be communicated with one heat exchange module to form a single-stage heat exchange mode; and each waste heat pipeline can also be communicated with a plurality of heat exchange modules in series to form a multi-stage heat exchange mode. The operation mode of the system adopts an automatic control mode to realize automatic start and stop, and automatic adjustment of steam parameters is realized. The scheme has the beneficial effects that waste heat utilization of waste steam heat is realized, the steam recovery efficiency is improved, the utilization cost is reduced, flexible matching design can be realized according to the quality and quantity of waste heat resources, and the scheme has better economical efficiency and popularization value.

This invention belongs to the field of building materials technology, specifically relating to a silica-alumina material, its preparation method, and its application. The silica-alumina material comprises 10-65 parts by weight of red mud, 20-60 parts by weight of slag powder, 0-20 parts by weight of silicate cement clinker, 0.1-8 parts by weight of an activator, and 5-15 parts by weight of an expanding agent; wherein, based on the mass of the expanding agent, the expanding agent comprises 0-60 wt% aluminum sulfate, 0-70 wt% carbide slag, 0-70 wt% tricalcium aluminate, 0-60 wt% calcium sulfoaluminate, and 0-60 wt% gypsum, and the content of at least two components in the expanding agent is not zero. The silica-alumina material of this invention, with its specific components and contents, can achieve both high strength and low shrinkage. When used in cement mortar, it can enhance the density of the cement and prevent cracking, enabling the material to be used for a long time.

The utility model discloses a special hinge for a ceramic tile stone invisible door, which comprises a supporting rod, an upper hinge component, a lower hinge component and a rotary pull rod, wherein the upper hinge component and the lower hinge component are arranged in mirror symmetry and comprise a hinge main arm, a hinge small arm and a base, and the rotary pull rod is only arranged on the upper hinge component or the lower hinge component. One end of the rotary pull rod is rotationally arranged between the middle point of the lower end of the small hinge arm and the hinge pin, and a through hole is formed in the other end of the rotary pull rod and sleeves a pull rod pin, away from the outer side of the pressure bearing, of the base to form a quadrangular structure capable of rotationally opening and closing around the fixed-point pressure bearing and the pin. The door opening and the decorative wall plate are made of the same material, the veneer is integrated, the overall effect is better, the rotary pull rod and the supporting rod act together, when a door is opened, after the movable frame leaves the door opening, under the action of the rotary pull rod, the movable frame translates towards the right outer side by a certain distance, a distance between the movable frame and a wall body is reserved, then the movable frame is rotated to be opened, and the wall body cannot be damaged.

The utility model relates to the technical field of filter elements, and discloses a high-precision filter element for a hydraulic filter, which comprises a bottom cover and a top cover, an inner support component is arranged between the bottom cover and the top cover, a stainless steel filter screen component is arranged on the outer side of the inner support component, and an outer filter component is arranged on the outer side of the stainless steel filter screen component. According to the high-precision filter element for the hydraulic filter, the inner supporting assembly, the outer filtering assembly and the stainless steel filter screen assembly are arranged, through the design of a vertical rod support and an annular support, the strength of the interior of the high-precision filter element can be improved, and the situation that the filter element is concaved inwards due to external force is avoided; meanwhile, the PP cotton layer, the ultrafiltration membrane layer and the glass fiber filtering membrane layer which are designed in a double-layer mode are adopted, multi-layer filtering can be achieved, the filtering effect can be improved to the maximum extent, the stainless steel filter screen assembly can conduct secondary filtering, and the stainless steel filter screen assembly made of stainless steel can be prevented from being rusted, is safer and can be used for a long time.

The utility model discloses a multifunctional insecticidal lamp, which belongs to the technical field of insecticidal lamps, and comprises a bottom plate and a box body, a plurality of groups of lamp posts are fixedly connected in the box body, a plurality of groups of hollowed-out grooves are arranged on the box body, a power grid is fixedly connected in the box body, a partition plate is arranged in the box body, and the partition plate is arranged in the box body. The solar panel is used for storing power for the storage battery and supplying power for the illuminating lamp, the box body and the power grid, it is guaranteed that the solar insect-killing box can be used outdoors for a long time, resources are effectively saved, then insects enter the box body through the hollow-out groove, the insect-killing effect is good, and the insect-killing effect is good. Then insects can be killed by electricity under the action of the power grid and fall into the drawer through the square groove, then the clamping block can be separated from the locking block by pulling the pull block downwards, and the drawer can be pulled out through the handle, so that dead insects in the drawer can be cleaned conveniently.

The device comprises a fixed base which is used for being matched with a roof so that the device can be integrally fixed to the roof; the rotary bearing is arranged above the fixed base; the rotating disc is arranged above the rotary bearing; the hanging part comprises a hanging point arranged on the outer side of the rotating disc, a rope winding assembly arranged on one side of the hanging point and an anti-falling assembly arranged on one side of the rope winding assembly; the anti-falling device can rotate, so that the anti-falling device does not need to be adjusted or installed again when the operation position is changed for operation; after an operator fastens a safety belt, the safety belt is connected with the anti-falling device for use; a plurality of operators can work at the same time, and winding is avoided; the roof anti-falling device is simple in structure, convenient to maintain and capable of being used for a long time; and a group of suspension points are arranged on each layer, so that double protection is realized, and personal safety is guaranteed.

The invention discloses a transmission type radiation intelligent building film. The building film sequentially comprises a release film, a bonding layer, a one-way perspective functional layer and an infrared radiation base layer. The invention further discloses a preparation method of the transmission type radiation intelligent building membrane. According to the building film, by arranging the release film and the bonding layer, when the building film is specifically used, the release film is torn off, and the building film can be directly bonded to a corresponding scene through the bonding layer, so that the building film is convenient and practical; besides, by arranging the one-way perspective function layer composed of the metal layer and the metal compound layer, the building film has low internal reflectivity, the transmission film has excellent privacy, and indoor privacy can be protected; through the arrangement of the infrared radiation base layer, the building film not only has excellent heat insulation performance, but also has the effects of excellent infrared radiation blocking thermal efficiency and the like; in conclusion, the building film not only has excellent heat insulation performance, but also has the excellent effects of high privacy, low light reflection, external adhesion and the like.

The utility model relates to animal medical equipment technical field provides a kind of anti-grabbing animal blood collection frame, comprising: animal corral, blood collection frame door, support plane and multiple movable arm fixing frame;The animal corral is left with opening;The animal corral is respectively welded with door clamping channel steel in opening two sides, the first stainless steel plate is welded in the opening lower of the animal corral;The blood collection frame door is movably arranged in door clamping channel steel;The support plane is fixedly connected on the first stainless steel plate;Multiple movable arm fixing frame is movably arranged on the support plane.The utility model can effectively improve blood sampling safety, reduce the stress response of giant panda, can improve the convenience and efficiency of blood sampling operation, and adapt to different panda individuals, with the characteristics of stable structure, strong durability.

The invention discloses a ternary metal telluride bifunctional catalyst for hydrogen production from water and a preparation method thereof.The preparation method comprises the specific steps that ferric nitrate nonahydrate, cobalt nitrate hexahydrate, nickel nitrate hexahydrate and fumaric acid serve as raw materials, the raw materials are stirred to be uniform in N, N-dimethylformamide, and Fex (CoNi)-MOF is obtained through reaction under specific conditions of a reaction kettle, centrifugation, cleaning and drying; then carrying out high-temperature calcination on the Fex (CoNi) Tex and tellurium powder according to a specific ratio in H2 / Ar mixed gas to prepare Fex (CoNi) Tex; fex (CoNi) Tex is loaded on foamed nickel, the catalyst material Fex (CoNi) Te (at) NF is prepared, and Fe2 (CoNi) Te (at) NF has excellent HER and OER catalytic activity, has rich active sites and has the excellent characteristics of low overpotential, excellent dynamics, small impedance, good cycling stability and the like. The efficient non-noble metal catalyst which is low in cost and excellent in catalytic activity is provided for hydrogen production through water electrolysis, and the commercialization process of the hydrogen production technology can be powerfully promoted.

The invention discloses a hot-line work operating rod with an insulation damage early warning function. The hot-line work operating rod comprises a handheld part, an insulating rod assembly and an operating head. By arranging the insulating rod assembly, the hoop, the detection piece and the alarm flashing lamp, insulation damage early warning, adjustable detection and hot-line work operation are integrated, the insulating rod assembly is fixedly connected between the handheld part and the operation head, the basic operation function of hot-line work is achieved, the hoop is fixed to the surface of the insulating rod assembly through the bolt, and the detection piece is fixed to the surface of the insulating rod assembly through the bolt. The protruding rod on the inner side drives the detection piece to be attached to the surface of the insulating rod assembly, the detection piece is electrically connected with the alarm flashing lamp through a wire, the insulation state of the insulating rod assembly can be detected in real time, alarm is triggered when the insulating rod assembly is damaged, the transmission device on the left side of the hoop can drive the hoop to move up and down, and insulation detection of different positions of the insulating rod assembly is achieved. The operating rod can simultaneously meet multiple requirements of hot-line work operation, insulation damage early warning, omnibearing detection and the like, and is suitable for various hot-line work scenes.

The utility model relates to the technical field of mixing instruments, and particularly discloses a self-heat-preservation building block material mixing device which comprises a mixing tank, a stirring shaft, a valve, a motor, a cross beam, a lifting mechanism, a ring I, a ring II and a plurality of wall scraping strips, the stirring shaft is longitudinally arranged in the mixing tank, and the top of the stirring shaft is connected with the motor; the cross beam is fixed to the top of the mixing tank, the lifting mechanism is installed on the cross beam, the motor is fixed to the lifting end of the lifting mechanism, the wall scraping strip is attached to the inner wall of the mixing tank, the stirring shaft is movably sleeved with the first ring, and a plurality of connecting arms are arranged on the first ring in the circumferential direction; the multiple connecting arms are fixedly connected with the multiple wall scraping strips respectively, the second ring is fixedly arranged on the stirring shaft in a sleeving mode and arranged above the first ring, and the bottom of the second ring is longitudinally and fixedly connected with a column body. The stirring device has the function of cleaning the inner wall of the mixing tank, the resistance of the stirring shaft cannot be increased, and the service life of the wall scraping strips is long.

The utility model relates to a watering device, and provides a watering maintenance device for bridge construction, which comprises a fixing ring, a plurality of limiting devices arranged on the inner side wall of the fixing ring, a water spraying pipe arranged below the fixing ring, a water spraying port arranged on the inner side wall of the water spraying pipe, a connecting rope used for connecting the fixing ring and the water spraying pipe, and a water supply device connected with the water spraying pipe, the inner diameter of the fixing ring is smaller than that of the water spraying pipe. The watering maintenance device for bridge construction can efficiently, automatically and uniformly carry out watering maintenance on the side wall of a bridge pier.

The utility model discloses a guide rail change gear structure for a corner edge box sealing machine, which comprises a rack, and two groups of upper power edges and two groups of lower power edges which are respectively arranged on the rack, and the upper power edges and the lower power edges are distributed oppositely up and down; the device is characterized in that a lifting frame capable of moving up and down and a lifting device capable of driving the lifting frame to move up and down are arranged on the rack, the lifting frame is provided with two opposite cross beams arranged in parallel, and first guide shafts parallel to the cross beams are arranged on the lower sides of the cross beams; the length direction of the cross beam is perpendicular to the conveying direction of the upper power edge, a first moving seat is arranged on one side of the upper power edge, the first moving seat is movably arranged on the first guide shaft in a sleeving mode through a linear bearing, and a change gear is arranged on the first moving seat and connected to the upper side of the cross beam in a sliding and hanging mode.

The utility model relates to shoemaking production auxiliary tool technical field, specifically is a kind of eyelet weaving tape positioning and guiding desktop fixing device, the eyelet weaving tape positioning and guiding desktop fixing device includes pedestal, functional arm, one end of functional arm is fixed on pedestal, and the other end of functional arm is provided with slope guide head, and it is positioning step surface between slope guide head and functional arm;Pedestal sets up locating hole.Slope guide head and the integration of positioning step surface, realize weaving tape path guidance+entering depth positioning dual function, guarantee that weaving tape is efficiently guided and the length is consistent, far superior to manual operation.

A methanol engine belongs to the technical field of automobile engines. The included angle between the center line of the cylinder barrel in the methanol engine cylinder body and the vertical direction is 55 degrees or 63 degrees, the methanol engine body is obliquely arranged, the height of the engine is reduced, the methanol engine can be arranged in a cabin of a light commercial vehicle, the light commercial vehicle can use methanol fuel, and the use cost of the light commercial vehicle is reduced. The positions of the methanol rail assembly and the gasoline rail assembly can be interchanged, the methanol rail assembly is arranged on the intake manifold, the gasoline rail assembly is arranged on the cylinder cover, or the methanol rail assembly is arranged on the cylinder cover, and the gasoline rail assembly is arranged on the intake manifold, so that the engine can use methanol fuel or gasoline fuel for a long time, and the engine is more energy-saving and environment-friendly. And the use area of the vehicle is widened while the use cost of the vehicle is reduced. The methanol engine uses the non-cooling EGR system, so that the cost is reduced, the emission is reduced, and the fuel consumption is reduced.

The present invention belongs to the field of oral denture technician repair equipment, and in particular, relates to a multi-punch die-casting device for a dental porcelain casting furnace. The multi-punch die-casting device for a dental porcelain casting furnace has a furnace chamber with top and bottom openings; the bottom opening of the furnace chamber is closed by a furnace chamber bottom plate; a furnace core is placed in the furnace chamber; the furnace core is a structure with top and bottom openings; the top of the furnace core is in contact with the inner lining top plate in the furnace chamber; a sand mold for a part to be cast is arranged in the furnace core; the sand mold for a part to be cast is arranged on the top of the furnace door; the sand mold for a part to be cast has a mold cavity; the top of the mold cavity has a plurality of die-casting holes connected thereto, and a hot-die-casting ceramic block is placed in each die-casting hole; a punch is placed on the top of each hot-die-casting ceramic block; there is a space for the punch to rise between the top of the punch and the bottom surface of the inner lining top plate in the furnace chamber; the furnace door is a structure that can be raised and lowered relative to the furnace chamber. The present invention has the characteristics of simple and convenient operation and high die-casting precision.

This utility model discloses an anti-oxidation device for copper wire transmission. A fixed box is placed at the initial connection end of the traction mechanism, and the copper wire is then passed through the sealing colloid of the first and second openings. Antioxidant is poured into the solid box through a first liquid inlet pipe, continuously submerging the copper wire. The sealing colloid prevents significant liquid leakage during copper wire transmission. Once the antioxidant reaches a preset standard, the traction mechanism is activated, guiding the copper wire through the antioxidant in the solid box. The fixed box possesses high mechanical properties and rigidity, ensuring long-term use. This device solves the technical problem of existing plastic bottles being too soft, having poor mechanical properties, and easily damaged, leading to antioxidant leakage and affecting the anti-oxidation process of the copper wire.

The invention discloses a ternary green anticorrosion passivation liquid of cerium-manganese-zirconium for aluminum foil surface and a preparation method thereof, including the following raw materials in parts by weight: 20-30 parts of cerium dioxide, 15-20 parts of manganese dioxide, 10-15 parts of zirconium nitrate, 3-4 parts of dispersant, 2-3 parts of surfactant, 20-70 parts of diluent monomer, and 1-6 parts of thiol compounds. The ternary green anticorrosion passivation liquid of cerium-manganese-zirconium of the present invention does not produce toxicity during use, has good corrosion resistance, is environmentally friendly and has less energy consumption. The ternary green anticorrosion passivation liquid of cerium-manganese-zirconium of the present invention can meet the wide range of use of coating amount, and there will be no color difference similar to that occurring due to the excessively high coating content of trivalent chromium passivation liquid, and the ternary green anticorrosion passivation liquid of cerium-manganese-zirconium has good stability and can be used for a long time.

The utility model discloses a fault monitoring device for an electric power circuit, and belongs to the field of electric power equipment. The fault monitoring device comprises a fault monitoring device body, a retention box is installed on the side face of the fault monitoring device body, and an assembly frame is arranged at the position, opposite to an air outlet of the fault monitoring device body, of the upper portion of the retention box; a motor is installed in an inner cavity of the retention box, a rotatable transmission rod is installed at the output end of the motor, a circular positioning frame is fixed to the outer portion of the transmission rod, an inner cavity of the positioning frame is divided into two assembling areas with the same size, and filter screens are installed in inner cavities of the assembling areas. According to the utility model, the structure of the dustproof part is improved, so that the frequency of removing the dustproof part for cleaning is effectively reduced, and the equipment can be used for a long time.

The present application belongs to the technical field of circulating cooling water treatment of air conditioning system, and particularly relates to a condenser online cleaning method and device with filtering and water quality treatment functions. The method comprises the following steps: S1, rubber ball cleaning; S2, backwashing and pollution discharge; and S3, water quality treatment. The present application can realize the switching logic of the three working modes of rubber ball cleaning, backwashing and pollution discharge, and water quality treatment, and through the cooperation control of the ball feeder, the filtering filter separator and the water pump, the device can be switched in the same device with the least equipment, so that long-term stable online cleaning is realized. Through the installation mode of the stainless steel filter cartridge in the filtering filter separator, the water body can flow in three different paths, so that the filtering filter separator can be used for a long time.

The invention relates to the technical field of packaging equipment, and discloses a quantitative packaging device for a pulse laser, which comprises a bottom plate, a conveying belt is fixedly connected to the top of the bottom plate, a discharging plate is fixedly connected to one side of the conveying belt, a controller is fixedly connected to one side of the discharging plate, and an electric rotating shaft is rotatably connected to the interior of the discharging plate. A first connecting plate is fixedly connected to the outer wall of the electric rotating shaft, a protection assembly is arranged on the outer wall of the first connecting plate, a fixing frame is arranged on one side of the discharging plate, a positioning assembly is arranged on the outer wall of the fixing frame, and a dust removal assembly is arranged at the top of the fixing frame. Through the elastic characteristics of the first spring and the second spring and the flexibility of the rubber baffle, the impact speed of the laser is effectively reduced, direct damage is avoided, meanwhile, impact force generated when the pulse laser slides on the surface of the discharging plate is relieved, therefore, damage borne by the laser is reduced, and durability and safety of the pulse laser are enhanced.

The utility model relates to a detachable V-cone flow meter for a test, which comprises a measuring tube provided with a positive pressure tapping tube and a negative pressure tapping tube; the supporting pipe is arranged corresponding to the negative pressure taking pipe; the negative pressure pipe is connected with the supporting pipe; the cone is arranged on the negative pressure pipe in a sleeving manner; the supporting and positioning assembly is used for supporting the cone; the locking component is used for being in locking fit with the negative pressure pipe, and the locking component is in abutting fit with the supporting and positioning assembly so as to limit the cone in the axial direction of the measuring pipe. By adopting the technical means shown in the application, in the test process, different cones can be conveniently disassembled and replaced through the locking part for performance test, after the test is completed, the finally used cone is selected, and the cone can be used for a long time by welding the supporting column with the inner wall of the measuring tube. According to the detachable V-cone flowmeter for the test, the manufacturing cost in the test process is effectively reduced.

The invention discloses a micro-spacing LED display screen which comprises a box body, a bottom shell and a plurality of display lamp panels connected to the bottom shell, a rectangular sealing ring is arranged between the display lamp panels and the bottom shell, and the sealing ring comprises a main ring and a plurality of auxiliary rings arranged on the inner side of the main ring. The auxiliary ring is arranged on the periphery of an edge connecting point between the display lamp panel and the bottom shell in a surrounding mode, a connecting strip is connected between the two sides of the long edge of the main ring, and an avoiding ring is arranged in the middle of the connecting strip and arranged on the periphery of a middle connecting point between the display lamp panel and the bottom shell in a surrounding mode. By arranging the sealing ring between the display lamp panel and the bottom shell for fixing the display lamp panel to the box body, the waterproof and dampproof effects are achieved, external dust is prevented from entering the display screen, and the display screen is suitable for outdoor waterproof and dustproof environments.

The present invention discloses an atomizer and an electronic cigarette. The atomizer includes a shell, an atomizing assembly, and an elastic oil injection piece. An air outlet channel and an oil storage tank are formed in the shell. The air outlet channel is connected to the oil storage tank. At least part of the structure of the atomizing assembly is located in the air outlet channel. The elastic oil injection piece is connected to the shell. The elastic oil injection piece is provided with an oil injection channel. The elastic oil injection piece can be deformed under the drive of an external force. The oil injection channel can be connected to the oil storage tank when the elastic oil injection piece is deformed. The technical solution adopted by the present application can achieve the effect of protecting children and can prevent children from contacting with tobacco oil and causing danger.

The invention discloses a time sequence prediction precision improvement method based on a LightGBM algorithm, and the method is characterized in that the method comprises the following steps: 1, processing a missing value before time sequence analysis is started; 2, after data processing is completed, whether a time sequence has a trend and seasonality or not is judged; step 3, if the time sequence is unstable, removing the trend and the seasonality of the sequence by using a difference method, performing ADF test on the result of each step number, and judging the optimal difference step number according to the ADF test statistic and the p value obtained after test; and step 4, after the sequence is stable and then is checked, the invention relates to the technical field of machine learning and time sequence analysis. Compared with a traditional method, the time sequence prediction precision improving method based on the LightGBM algorithm has higher prediction precision and stronger robustness, can cope with various complex and changeable data conditions, and provides a more accurate and reliable prediction result for people.