1731results about How to "Reduce wear and tear" patented technology

The invention relates to a propagation method for using a single-bud short tamarix to cut containerized seedlings. The propagation method comprises the main operating steps of: firstly establishing pergolas, preparing cutting containers, cutting matrixes and cutting beds of the containers, then carrying out cutting propagation operation, selecting the branches of the middle-upper part of the periphery of the middle-old age excellent clonal crown as cuttings, carrying out cutting in summer or autumn, doing well in work of weeding, fertilizing, moisturizing and prevention of pests. The propagation method has short culturing period, generally needs only 10 to 12 months, has simple operation, high propagation coefficients, fast propagation expansion and good transplanting effect, also can effectively reduce the loss of cutting propagation materials, and improve comprehensive benefit of industrial development of good seeds of the oil tea.

The invention discloses a method for producing urea-base grain compound fertilizer by high-tower prilling, comprising pulping and prilling, where the pulping adopts three-step series continuous gradual cooling pulping method, comprising the steps of: adding fluxing agent and urea in a melting tank, melting the urea at low temperature and making the urea melt flow into the first stage mixing tank; in the first stage mixing tank, adding unreactable raw materials into the urea melt, and making the mixed melt flow into the second stage mixing tank; in the second stage mixing tank, adding in ammium phosphate and mixing for less than 4 min, and obtaining mixed melted pulp; spraying the mixed melted pulp through the double-speed rotating prilling nozzle of the high tower into a prilling tower to complete prilling. And it has advantages of low temperature operation, low energy consumption, low loss, good pulp fluidity, good operating environment. And the produced compound fertilizer grains are round, less broken and uniform.

The disclosed floor slab includes prefabricated unit, dense ribs. The floor slab is composed of multiple prefabricated units assembled on the dense ribs. The prefabricated component includes frame of hollow unit, and cover for prefabricated unit made from reinforced concrete. The frame and the cover constitute assembled unit. Assembling multiple blocks of assembled unit arranged in length and breadth forms the floor slab of dense rib. Multiple frames of hollow unit arranged in length and breadth are placed on template. The template can be in bar shape. Being built on stilts, multiple frames of hollow unit are supported on templates, which also can be as a full template. Thus, it is does not need template to support girder side of dense rib or under plate between dense ribs. Advantages are: small quantity of templates, simple working procedure, saving time and labor, less consumption, and quickening construction progress.

The invention discloses a hot air circulating heating insulation device and a method for using the same, which aim to solve the problems of energy waste and inconvenient operation of the prior device.The insulation device comprises a box body with an insulating layer, a box door and an electric heater, and is characterized in that: the inside of the box body is also provided with an inner box, acirculating fan, two temperature and humidity sensors and an exhaust pipe, wherein the inner box has a proper gap with a top plate, a bottom plate and a back wall of the box body respectively, a plurality of layers of withdrawable cage lattices mutually parallel to each other are arranged in the inner box, the top plate and the bottom plate are an air balancing baffle plate respectively, and unitdoors mutually corresponding to the cage lattices are arranged in the box door; the circulating fan is arranged in the gap between the inner box and the top plate of the box body; the electric heateris an air heater, and is arranged in the gap between the inner box and the back wall of the box body; one temperature and humidity sensor is arranged at the upper part of the back wall in the box body, and the other one is arranged at the lower part of the back wall in the box body; and the exhaust pipe is U-shaped, and one end of the exhaust pipe is communicated with the bottom of the inner box,while the other end penetrates out of the bottom plate of the box body to be communicated with the atmosphere.

A motor is disclosed, comprising at least one fixed member comprising at least one magnetic winding, having an internal cavity; at least one driven member inside said fixed member, comprising magnetically conductive materials; constraining means for constraining said driven member to a path of movement with respect to said fixed member, said driven member being able to move within said fixed member, wherein magnetic normal force is induced in said fixed member periodically, whereby said driven member is periodically moved around said path by magnetic force, whereby rotary motion is produced.

The invention relates to a storage-type super-low nitric oxide system in a coal fired boiler coal mill. On the basis of the existing low-nitrogen burning technology, the superfine coal powder preparation technology and the smoke circulating technology are adopted. The smoke circulating technology adopts cold furnace smoke to be mixed with primary air to be supercharged by a primary fan, the heating and powder feeding technology of an air preheater and the hot air and high-temperature furnace smoke drying technology of the powder production system are adopted, i.e. superfine coal powder can be prepared, the hot furnace smoke enters a primary air large air bellow, the hot furnace smoke is mixed with superfine coal powder prepared by a superfine coal powder preparation device in a coal powder blender and supplied by a powder supply machine from a coal powder cabin to be heated, and the air-powder mixture is fed into a low-nitrogen burner through a primary air pipe. In the main burning area of the boiler, since the air content of the furnace smoke is little, a lower residual air coefficient can be realized, the emission of the nitric oxide can be reduced.

The invention discloses a lifting type belt plate fetching machine. The lifting type belt plate fetching machine is correspondingly arranged at the tail end of a roller way used for conveying glass plates in a glass production line. The lifting type belt plate fetching machine comprises a base, a belt conveying rack, a lifting mechanism and a belt conveying mechanism horizontally mounted on the belt conveying rack. A belt conveying motor used for driving the belt conveying mechanism to operate is arranged at one end of the belt conveying rack. The belt conveying rack is horizontally mounted on the lifting mechanism. The lifting mechanism is fixed to a base. A lifting mechanism transmission station in transmission connection with the lifting mechanism is arranged on one side of the base. The lifting mechanism transmission station drives the belt conveying rack to act through the lifting mechanism so that the belt conveying mechanism can have certain displacement in the horizontal direction while the vertical height of the belt conveying mechanism is changed, and accordingly the glass plate at the tail end of the roller way is transferred onto the belt conveying mechanism. According to the lifting type belt plate fetching machine, the conveying speed of the belt conveying mechanism is the same as that of the roller way, in this way, it is guaranteed that the glass plate enters a belt of the belt conveying mechanism smoothly, relative movement is avoided, the quality of glass is improved, and the rate of finished products is increased.

The present invention provides a chip for an ink-jet printer and an ink-jet printer. The chip for an ink-jet printer comprises a hollow portion, a memory, two installation and detection terminals and a power terminal connected with the memory. Each installation and detection terminal is provided with an installation and detection contact portion being in electrical contact with a printer contact probe, the power terminal is provided with a power contact portion being electrical contact with the printer contact probe, the power terminal is arranged at the end surface of the hollow portion, the two installation and detection contact portions are arranged at two sides of the hollow portion and installed at the installation direction of a printer along the chip, and the distances between the two installation and detection contact portions and the front end of the chip are smaller than the distance between the power contact portion and the front end of the chip. The chip for ink-jet printer and the ink-jet printer overcome the defects in the prior art and effectively ensure the stable reliability of the usage of the chip.

The invention relates to a system and a method for improving the uniformity of a selective catalytic reduction (SCR) flow field. The system comprises a flue, a plurality of circular arc-shaped primary guide plates, a plurality of circular arc-shaped secondary guide plates, an ammonia injection grid, N tertiary guide plates, a plurality of catalyst layers, and M sets of differential pressure measurement components which are horizontally arranged along the width direction of the flue and are positioned between the catalyst layers and the tertiary guide plates, wherein each set of differential pressure measurement component is evenly provided with N differential pressure detection devices arranged at intervals along the depth direction of the flue. The system and the method can improve the flue gas flow field in front of the catalyst layers, guarantees the speed uniformity of an SCR system, and effectively reduces the phenomenon that the catalyst layers are blocked or worn.

The invention provides a high-precision flat plate-type brake test bench, which is composed of a supporting frame, a brake soleplate, a bearing frame, brake force detection mechanisms, a wheel weight detection mechanism and a guide limiting mechanism, wherein two sides of the supporting frame are symmetrically provided with two grooves, the notch of each groove faces inwardly, and thus, the supporting frame presents a symmetrical structure in a shape like a Chinese character zhong; the bearing frame is arranged at the inner side of the supporting frame; the brake soleplate is fixedly arranged above the bearing frame; two groups of brake force detection mechanisms are symmetrically arranged in the grooves at two sides of the supporting frame; the wheel weight detection mechanism is located between the bearing frame and the bottom plate of the supporting frame; and the guide limiting mechanism is connected with the bearing frame and the supporting frame. The technical scheme of the invention can effectively improve defects existing in aspects such as the overall frame structure of the traditional flat plate-type brake test bench and the wheel brake equivalent transfer and brake force acquisition, and the brake force detection precision of the flat plate-type brake test bench is improved.

The invention discloses a wind alignment method of a wind generator yaw system. The method comprises the steps that a current yaw starting angle parameter is obtained through current wind speed according to the functional relationship between the wind speed and a yaw starting angle by a yaw system; and when a deviation angle between a wind generator bin and the wind direction is judged to be larger than the current yaw starting angle by the yaw system, the yaw system controls the wind generator bin to yaw. According to the wind alignment method, the yaw starting angle is set according to the current wind speed, so that yaw starting control is more precise; the action frequency of the yaw system is effectively lowered; abrasion of yaw gears is reduced; yaw fatigue is alleviated; and the generation capacity of the wind generator is improved.

The invention provides a real-time traffic light identification method. The method comprises following steps: acquiring traffic light information, and performing fusion processing on the traffic lightinformation and an original map to generate a marked map; associating the traffic light information with Road id of a corresponding road section and Lane id of a lane in front of a stop line respectively, and generating a first associated information table and/or a second associated information table; determining Road id of the road section and/or Lane id of the lane according to the current position of a vehicle and the marked map; judging whether the traffic light information exists in the road section in front of the stop line when distance between the vehicle and the stop line is in a preset range according to Road id of the road section and the first associated information table and/or Lane id of the lane and the second associated information table, and acquiring absolute position information of a light plate frame in the marked map and converting the absolute position information into pixel position information in a first image when the traffic light information exists; detecting and classifying a first ROI (region of interest) with a deep learning algorithm to obtain a traffic light state corresponding to id of a traffic light. Therefore, precision and speed of visual identification are increased.

The invention relates to a method for cutting ultra-thin silicon wafer by a superfine steel wire. The method comprises the following steps of: (1) forming slots in a man shaft; (2) sticking bars; (3) preparing a cooling liquid; (4) cutting; (5) unloading; (6) degumming and cleaning; and (7) detecting; the cooling liquid prepared in the step (3) is pure water and a water-based cutting fluid with concentration being 0.6%-2.0%; and during cutting in the step (4), cutting steel wires are 60 [mu]m diamond wires, diamond particles are particles with diameter being 6-8 [mu]m, tension is set to be 7-9 N, and slot pitch of the main shaft is 0.19-0.210 mm. According to the method, single crystal slicing yield is further reduced, slicing thickness is reduced, silicon loss is reduced and processing cost is reduced; and meanwhile, a wire braking rate can be reduced, yield is increased, and wire doubling is avoided.

A Strap Assembly for a tonneau cover and a tonneau cover apparatus including a strap assembly. The apparatus preferably includes, a flexible cover, the flexible cover having first and second ends; a support frame for attachment to a cargo box of a pick-up truck; the support frame having a front bar to which the first end of the flexible cover is secured. The strap assembly includes a strap bracket; and a buckle insertion member; a strap to secure the flexible cover in a rolled up configuration proximate the front bar when the flexible cover is not in use to cover an opening defined by the perimeter of the cargo box. The strap has first and second ends; the buckle insertion member being secured to the first end of the strap; and a strap bracket attached to the front bar. The strap bracket includes a buckle insertion receiving member and a strap receiving opening. The buckle insertion receiving member resists movement forward of the front bar of a rolled up segment of the flexible cover, when the rolled up segment is secured to the front bar by the strap when the buckle insertion member is secured to the buckle insertion receiving member and support frame is secured to the cargo box.

The invention relates to a molecular sieve ceramic membrane material for olefin purification as well as a preparation method and application of the molecular sieve ceramic membrane material. In the molecular sieve ceramic membrane material, the particle sizes of molecular sieve particles supported on the surface of the ceramic material are 0.1-3 [mu]m, and the thickness of a molecular sieve layeris 3-5 [mu]m; during preparation, ceramic material pretreatment, molecular sieve seed crystal pre-coating and sealed crystallization are sequentially carried out; and the molecular sieve ceramic membrane material is used for removing a polar oxygenated compound in a gaseous olefin flow to be 1ppm or below. Compared with the prior art, the molecular sieve ceramic membrane material prepared by the preparation method of the invention has the molecular sieve layer with higher mechanical strength, larger specific surface area and uniform thickness, in addition, the molecular sieve layer has no longitudinal or horizontal cracks, has no air pores in the surface and is high in bonding strength and not easy to fall off; and when the polar oxygenated compound in the olefin flow is adsorbed, the purification depth is 1ppm or smaller, so that not only is the mass transfer resistance lower, but also the energy consumption is lower, and the regeneration capacity is high.

The invention discloses methods for manufacturing a superjunction structure and a superjunction semiconductor device. A novel semiconductor superjunction and a superjunction device are formed by the key process steps of etching a trench, performing ion implantation at a small inclination angle, filling an insulating dielectric and planarizing, forming an active layer and an electrode and the like. Compared with the prior art, the methods have the advantages that: firstly, a method of forming the superjunction by using a plurality of epitaxy processes and a plurality of implantation processes is prevented from being used; secondly, the bottom of a trench gate can be guaranteed to be flush with or slightly lower than the lower boundary of a body region, so that withstand voltage of the device is improved, and gate-source capacitance and gate-drain capacitance are reduced; thirdly, since the depth of the trench is reduced, the process difficulty of the small-angle implantation is reduced, the process tolerance is increased, and the dielectric in the extended trench is easier to fill and planarize; fourthly, a complex mask is not required, so that the influence of small-angle implantation on a trench region is avoided; and fifthly, the adverse effects of the filling and the planarizing of the extended trench and the manufacturing and the planarizing of the trench gate on the formed body region, body contact region and source region are avoided.

The invention discloses a pesticide spraying system and a method based on a child-mother system. Crop protection is implemented by a child-mother system composed of a pesticide spraying robot and a route planning unmanned aerial vehicle (UAV). A UAV image acquisition module acquires a farmland image, and sends the farmland image to a UAV control module. The UAV control module generates an optimal pesticide spraying route according to the farmland image, and sends the optimal pesticide spraying route to a robot control module. After the robot control module makes the robot move to near a farmland area needing pesticide spraying according to the optimal pesticide spraying route, a robot image acquisition module acquires an image of crops around, identifies a part of crops needing pesticide spraying, and sends the part to the robot control module. The robot control module makes a mechanical arm move to the part of crops needing pesticide spraying, makes the nozzle aligned with the part of crops needing pesticide spraying and starts spraying pesticide. Through intelligent route planning by the UAV, the consumption of pesticide, power and the like in the working process of the robot is minimized.

The invention relates to a method of inhibiting olefin polymerization in an alkaline washing column of a methanol-to-olefin device and mainly solves the technical problems of poor control effect on olefin polymerization, poor targeted applications, instability, complex operations, high toxicity and high cost in an alkaline wash column of an MTO apparatus in the prior art. In the technical scheme, a) an olefin polymerization inhibitor (I) is employed and includes, by weight, 0-20 parts of an amine compound and 0-10 parts of an alcohol compound; and b) the olefin polymerization inhibitor (I) is injected to the alkaline wash column (1) along with an alkaline solution (II) in an online continuous injection manner through an alkaline solution injection line on the alkaline wash column. The method solves the technical difficult problems and can be used for controlling and preventing the olefin polymerization in the MTO apparatus.

The invention discloses a multi-resource low-temperature waste heat comprehensive utilization system. The multi-resource low-temperature waste heat comprehensive utilization system comprises a sewage treatment device, a water storage tank, a low-temperature water source heat pump, a heat storage water tank, a cold storage water tank, a first branched water collector, a second branched water collector, an air-compressor cooling water source heat pump, a solar heat collecting device, an air heat source pump, an air mixing device and a multi-stage spraying chamber. The multi-resource low-temperature waste heat comprehensive utilization system disclosed by the invention has the advantages that recovery of waste heat resources such as industrial waste gas, industrial waste water and domestic waste water and utilization of solar energy and air energy are integrated, so that the heating in winter and cooling in summer are realized; multiple waste heat resources and other energies in a mining area are fully utilized, the energy-saving effect is obvious, the dust removing effect is good and the economic and social benefits are obvious.