206results about How to "Extended maintenance time" patented technology

The semiconductor memory device comprises a plurality of memory cells. Each memory cell comprises a respective transistor and a respective capacitor unit. The transistor comprises a transistor body of a first conductivity type, a drain area and a source area each having a second conductivity type, the drain area and source area are embedded in the transistor body on a first surface of the transistor body, and a gate structure having a gate dielectric layer and a gate electrode, the gate structure is arranged between the drain area and the source area. An isolation trench is arranged adjacent to said transistor body, having a dielectric layer and a conductive material, wherein the isolation trench is at least partially filled with the conductive material. The conductive material is isolated by said dielectric layer from the transistor body. The capacitor unit is formed by the transistor body representing a first electrode and the conductive material representing the second electrode.

The invention relates to a strong inhibition double-kalium ion, namely polymer drilling fluid, which is characterized in that the strong inhibition double-kalium ion, namely polymer drilling fluid comprises the following materials in weight percentage: A. 7 to 9 percent of inorganic kali salt used as an inorganic inhibitor; B. 0.5 to 0.6 percent of organic kali salt used as an organic inhibitor; C. 0.3 to 0.5 percent of viscidity improving agent; D. 0.3 to 0.5 percent of filter loss reducing agent; E. 0.3 to 0.5 percent of alkalinity controlling agent; F. 0.03 to 0.1 percent of preservative agent; G. 0.1 to 0.2 percent of antifoaming agent; H. 1 to 8 percent of weight additive; and the balance being water. The drilling fluid has stronger functions of inhibiting hydration, expansion and dispersion of clay mineral, and also has better rheological property, so that the drilling fluid is low filter loss non-solid phase polymer drilling fluid.

The invention discloses silicon-based gallium arsenide epitaxial material and device manufacturing equipment. The manufacturing equipment comprises a UHVCVD reaction cavity; the UHVCVD reaction cavity is communicated with a vacuum transition cavity, the vacuum transition cavity is communicated with a wafer caching cavity, and the wafer caching cavity is communicated with a central conveying cavity; the central conveying cavity is further communicated with a heat treatment cavity, an MOCVD reaction cavity and a laminar flow hood; brake valves are arranged between the cavities which are mutually communicated, and brake valves are further arranged between the laminar flow hood and the central conveying cavity; vacuum mechanical arms are arranged in the central conveying cavity and the vacuum transition cavity. According to the silicon-based gallium arsenide epitaxial material and device manufacturing equipment and a manufacturing method, the defects that in an existing silicon-based gallium arsenide epitaxial material and device manufacturing process, processing equipment is low in production efficiency and large in occupied area, pollution is caused in the process of transferring a substrate, and the pollution degree requirements of a clean workshop are high are overcome.

The invention discloses an industrial wastewater treatment device which comprises a wastewater treatment box, a water inlet pipe and a water outlet pipe. The water inlet pipe and the water outlet pipe are communicated with the internal space of the wastewater treatment box. The industrial wastewater treatment device further comprises at least two partition plates. The water inlet pipe and the water outlet pipe are arranged on the box body side walls on the two opposite sides of the wastewater treatment box respectively. The partition plates are arranged in the space, between the water inlet pipe and the water outlet pipe, inside the box. The partition plates divide the internal space of the wastewater treatment box into at least three water grooves. Overflow ports are formed in the partition plates. The overflow ports in every two adjacent partition plates are staggered. A filter device is arranged in each overflow port. The upper portion of each water groove is provided with an oil contamination scraping device. According to the industrial wastewater treatment device, the vast majority of oil contamination suspended matter and solid particle impurities in industrial wastewater can be removed, and the treated industrial wastewater can be directly drained on the condition of not considering other environmental protection factors.

The invention belongs to the technical field of sulfur recovery, and particularly relates to a sulfur recovery and tail gas liquid phase treatment technique. The technique comprises the following steps: heating circulating nitrogen and purging a sulfur recovery unit to generate sulfur-mist-containing gas; directly contacting the sulfur-mist-containing gas with water for cooling, and condensing the sulfur mist to form sulfur powder and removing the sulfur powder for gaseous phase circulation; heating by using the circulating nitrogen containing trace O2 to forge the sulfur recovery and tail gas treatment device to generate SO2-containing gas; and directly contacting the SO2-containing gas with NaOH dilute solution for cooling, and entering the produced industrial wastewater into a sludge treatment device. According to the technique, the shutdown device is treated by using high-temperature nitrogen in place of smoke gas generated from combustion of fuel gas, so that the controllability of the device is greatly improved, the service lives of the equipment and catalyst can be effectively prolonged, the discharge of sulfur dioxide in the shutdown period of the sulfur recovery device is less than 10ppm, and the environmental pollution is greatly reduced.

The present invention discloses one kind of elastic float, and aims at providing one kind of elastic float with high shock strength, high corrosion resistance, easy manufacture, no maintenance, long service life and other advantages and its making process. The elastic float includes float body comprise elastic foamed core and elastic shield. The elastic float is made through making elastic core with foamed polymer material and spraying with high pressure spraying gun the polyurethane, polyurea or their mixture onto the surface of the elastic core to form shield, without interval between the elastic foamed core and the elastic shield. The present invention may be used as ship fender and floating buoy.

The invention discloses a method for implementing safety isolation measures in maintenance of intelligent power station relay protection equipment, which is applied to a handheld terminal and comprises the steps of substation information configuration, secondary circuit display, secondary safety measure ticket automatic generation, system parameter configuration, communication mode setting and relay protection maintenance, wherein the relay protection maintenance comprises the steps of secondary safety measure ticket selection; safety measure execution, namely, sequentially executing and automatically checking according to a preset secondary safety measure ticket step sequence, wherein the automatic checking refers that the system automatically judges whether the currently executed safetymeasure step is executed successfully or not, and the judgment basis is whether the current states of all soft pressing plates associated with the current safety measure step are consistent with an expected result set when the secondary safety measure ticket is automatically generated or not; automatic safety measure recovery; and anti-error checking. The invention further provides a method for implementing safety isolation measures in maintenance of the intelligent power station relay protection equipment. According to the invention, the safety measures can be automatically implemented according to the secondary safety measure ticket, and the system faults can be automatically and accurately analyzed, thereby having a huge application market.

The invention provides a performance analysis experiment of internal combustion engine oil, and relates to the field of internal combustion engine oil technology. The performance analysis is as follows: (1) viscosity change; (2) changes of acid value and total base number; (3) differential infrared spectroscopic analysis result; (4) spot dispersibility test; (5) metal content, which can prolong vehicle maintenance time for durability, thereby the vehicle has long operation time and strong practicality.

The invention relates to a reactive power compensation device for remote wireless monitoring of electric power and specifically relates to a secondary low-pressure dynamic compensation device for remote wireless monitoring of a high-power submerged arc furnace. The secondary low-pressure dynamic compensation device for remote wireless monitoring of the high-power submerged arc furnace comprises an intelligent central controller and a secondary low-pressure dynamic compensation device for the high-power submerged arc furnace. The intelligent central controller comprises an embedded controller module, an input/output module, a GPRS (general packet radio service) module, a ZigBee module and a terminal monitoring module. The secondary low-pressure dynamic compensation device disclosed by the invention can realize the functions of remote wireless monitoring, control or management of the power supply situation of the secondary low-pressure dynamic compensation device for the high-power submerged arc furnace and the actual operation working conditions of the submerged arc furnace by transplantation of an embedded operation system based on GPRS and ZigBee and the intelligent central controller customized by an application program, the operation is simple, the operation and using efficiency is improved, the maintenance is facilitated, the status of insufficient reactive power of a short net is greatly improved, and the problems of trivial field maintenance, long maintenance time, unnecessary operation and maintenance burden of a user and the like are further solved.

The present invention provides a rapid drying casting material for a blast furnace iron runner, and a preparation method thereof. According to the casting material, bauxite clinker, corundum, silicon carbide powder, corundum powder, and alumina micro-powder are adopted as main materials, a binder and explosion-proof fibers are adopted as auxiliary materials, the bauxite clinker, the corundum and the silicon carbide are subjected to material preparing according to a certain ratio, and added to a mixer to carry out stirring mixing, then the explosion-proof fibers prepared according to a certain ratio are added to the mixer to stir, the corundum powder and the alumina micro-powder are added to mix, the binder is added to mix the powder, uniform mixing is performed, the mixed rapid drying casting material is filled into a moisture-proof package bag, and the bag is sealed and placed in a dry place. Compared with the rapid drying casting material in the prior art, the rapid drying casting material of the present invention has the following advantages that: the preparation method is simple, rapid construction, rapid baking and rapid iron discharging can be achieved, characteristics of good rapid drying explosion-proof performance, good slag iron erosion resistance, and good thermal shock stability are provided, material cost is reduced, the iron runner construction and maintenance time is shortened, the blast furnace utilization coefficient and the yield can be effectively increased, and a service life of the iron runner casting material working layer can be prolonged.

A novel heating furnace with a multi-hearth structure comprises a feeding pipeline, a combustor, a furnace body and outlet pipelines, wherein the one combustor is disposed, and at least two hearths are disposed inside the furnace body; a switchable heat-insulated switch plate is disposed at the entrance of each of the hearths; a remote-transport differential pressure gauge is respectively disposed between the entrance and the exit of each of the hearths; feeding space is disposed between the combustor and the hearths, and the feeding pipeline enters the feeding space; and each of the hearth respectively comprises the outlet pipeline, and heat-insulated filler is disposed between the adjacent hearths. Without changing configuration and material of a furnace tube and quantity of the combustor, the novel heating furnace with the multi-hearth structure provided by the invention can be timely switched to heating of the other hearth when one of the hearths fails, does not need to conduct parking overhauling of the whole heating furnace, prolongs duration for the device parking caused by the overhauling of the heating furnace, increases operational stability of the device, does not need to dispose more standby furnaces and greatly reduces cost.

The invention discloses a chilling ring of a gasification furnace. The chilling ring comprises an outer lip ring, an inner lip ring, a nozzle ring, an inner ring of a water cavity, an outer ring of the water cavity, a bottom plate of the water cavity, a chilling water conveying pipe and a descending pipe, wherein the parts are connected by welding; the outer lip ring and the inner lip ring form a chilling water distribution chamber, the nozzle ring, the inner ring of the water cavity, the outer ring of the water cavity and the bottom plate of the water cavity form the water cavity, and the chilling water conveying pipe is communicated with the water cavity and the chilling water distribution chamber; a chilling water circular gap is formed between the outer lip ring and the descending pipe; preferably, the circular outer lip ring is a three-piece type, and is thickened in a jet direction of the nozzle ring. According to the chilling ring of the gasification furnace provided by the invention, the outer lip ring is in the three-piece type which replaces an integral circular structure, and the inner lip ring, the nozzle ring, the outer ring of the water cavity and the inner ring of the water cavity are changed to independent pieces; parts of assemblies can be directly changed in the furnace in the using process, vulnerable assemblies can be independently changed, and assemblies which are not easy to wear can be repeatedly used, so that the chilling ring is long in service life and convenient and economical to maintain.

The present disclosure provides, among other things, scale-coated surfaces, vessels with controlled deposits of scale, and associated methods for enhanced boiling heat transfer. It is presently found that creating and/or maintaining a scale deposit at a controlled thickness actually enhances a type of boiling called nucleate boiling, which improves heat transfer.

The invention provides a refractory castable for a blast furnace iron runner. The refractory castable is composed of the following components in parts by weight: 40-50 parts of corundum, 8-12 parts of zircon, 8-30 parts of silicon carbide, 5-6 parts of magnesium oxide, 2-6 parts of silica fume, 1-5 parts of calcium aluminate cement, 1-3 parts of boron carbide, 0.2-0.3 part of sodium hexametaphosphate, 0.1-0.2 part of sodium polyacrylate, 3-5 parts of water and 1-10 parts of carbon black. The refractory castable for the blast furnace iron runner has good thermal shock resistance and slag resistance.

The invention discloses a rotary electromagnetic suspension bridge type crane. The rotary electromagnetic suspension bridge type crane comprises a bridge, wherein the bridge comprises a left bridge and a right bridge; the left bridge is connected with the right bridge through a beam; travelling motors are arranged on the lower parts of the two ends of the beam; the travelling motors are connectedwith travelling wheels; a dirt cleaning device is arranged at one side of each travelling wheel; rails are arranged at the upper ends of the bridges; a trolley capable of moving along the rails in a parallel mode is arranged on the rails; trolley motors are arranged at the lower ends of four corners of the trolley; the trolley motors are connected with trolley roller wheels; a lifting device is arranged at the upper end of the trolley; the two sides of the bridge are connected with a platform through fixed supporting legs; a plurality of groups of electrical appliance control boxes are arranged on the platform, and guard bars are arranged at outer sides of the platform; the bridge is connected with a cab through ladders; and the upper end of the cab is welded to one end of the bottom of the bridge. The rotary electromagnetic suspension bridge type crane is reasonable in structural design, can effectively adsorb iron materials such as a steel plate, greatly improves working efficiency,and is safe and stable.

The invention relates to a waterproof building material, in particular to a multifunctional colorful waterproof and anticorrosion coating. A composition of the multifunctional colorful waterproof and anticorrosion coating mainly comprises a water-based fluorocarbon emulsion resin, an ethylene-vinyl acetate copolymer (VAE), a silicate frit, alumina cement, an ester plasticizer, ethylene glycol, inorganic filler and an organic pigment. The multifunctional colorful waterproof and anticorrosion coating disclosed by the invention has the characteristics of good durability, long maintenance time, good corrosion resistance and the like, is mainly applicable to corrosion protections of nontoxic environments, such as waterworks and the like, in particular to protections of concrete structures of industrial and domestic sewage treatment plants and protections of water pipelines, and is also applicable to corrosion protections and water repellencies of concrete structures of landfill sits.

The invention relates to the technical field of air conditioners, and discloses a constant-temperature constant-humidity constant-oxygen constant-cleanliness dual-air-vent wall mounting type indoor air conditioner. The constant-temperature constant-humidity constant-oxygen constant-cleanliness dual-air-vent wall mounting type indoor air conditioner comprises an air conditioner outer machine body, wherein a supporting block is fixedly connected to one side of the air conditioner outer machine body, sliding blocks are fixedly connected to one side of the supporting block, one end of each of the sliding blocks is inserted into a sliding chute and is in sliding connection with the corresponding sliding chute, each of the sliding chutes is formed in one side of a side plate, the side plates are fixedly connected to a wall, the bottom of each of the sliding blocks is in contact with one end of a corresponding first spring, and the other end of each of the first springs is fixedly connected with the inner wall of the corresponding sliding chute. According to the constant-temperature constant-humidity constant-oxygen constant-cleanliness dual-air-vent wall mounting type indoor air conditioner, the sliding blocks, the sliding chutes, the side plates, limiting rods, sliding sleeves, push-pull plates and second springs are arranged, so that the air conditioner can be well disassembled, the problem that a conventional air conditioner outer machine is inconvenient to disassemble is solved, and the problem that many bolts need to be disassembled and the air conditioner can be disassembled when the conventional air conditioner outer machine is disassembled is solved.

The invention relates to a radar antenna cooling anti-adhesion device for high temperature dust measurement, belonging to the field of high temperature radar survey. The device is characterized by comprising an adjustable radar heat insulation sleeve (1), a gas induct hole (2), a flange piece (3), an antenna inner cover (4) and an antenna outer cover (5); the processing length of the radar heat insulation sleeve can be adjusted, and the upper part of the radar heat insulation sleeve is provided with a cooled sink which has the functions of radar heat insulation and heat dissipation; the gas induct hole is externally connected with nitrogen pressure gas, and the pressure of the gas is 0.9-1.1kg higher than that near an antenna; the antenna inner cover takes on a horn shape, the outer coveris fixed on the inner cover and screwed down by screw thread or compressed by the flange piece, the antenna outer cover is parallel to the axis of the antenna by axial cylinder, and the inner cover istaken as an echo reflecting surface of a bellmouth of a radar. The radar antenna cooling anti-adhesion device has the advantages of good sweeping effect, long maintenance free time and the like, canbe used for the places needed to be swept and cooled, and is widely applied to the fields such as metallurgy, petrochemical engineering, etc.

A system and method of tracking location and orientation of power tools utilized in the assembly and maintenance of complex systems is disclosed. The system can facilitate collaboration between maintenance and alert maintenance personnel to complete complex system activities.

The invention relates to an inspection well, in particular to a prefabricated inspection well and a road construction method involving the inspection well. The road construction method involving the inspection well includes the following steps of (1) arranging a base with an opening, (2) installing a bottom cover on the base, wherein the position of the bottom cover can be determined, (3) normally laying a road bed and a road surface on the bottom cover, (4) prefabricating the inspection well, (5) determining the position of the bottom cover, (6) smoothly cutting the road surface until the bottom cover is exposed and taking out the bottom cover, (7) placing the prefabricated inspection well, and (8) wholly or partially replacing, maintaining and recycling the prefabricated inspection well. The road construction method has the advantages that labor and road manufacturing cost are effectively reduced, road on-site construction time is shortened, the situation that the road surface is uneven due to uneven sediment of the surrounding of the inspection well is effectively avoided, flatness of the road surface is improved, road construction quality is improved, maintenance time of the inspection well is substantially shortened, and the inspection well can be recycled.

The invention discloses an intelligent monitoring device and a device identifying interior slave plates of the intelligent monitoring device. The intelligent monitoring device comprises a main plate, a plurality of slave plates which can be inserted and pulled and inserting plates which are respectively connected in an inserting-pin mode with the main plate and each sub-plate which can be inserted and pulled. The main plate comprises a main controller. Each sub-plate is provided with a bar code which is used for recording sub-plate information. A groove position is arranged on each inserting plate. A bar code scanning module which is matched with each groove position is arranged on each groove position. The bar code scanning modules are used for scanning the bar codes and converting the scanned bar code information into digital signals to be output. The digital signals are sent to the main controller through a data bus. Due to the fact that the bar code scanning modules scan the bat codes on the slave plates, whether the slave plates in the device are arranged can be automatically identified, the slave plate information such as the type of the slave plates and the versions can be identified by reading the bar codes, and the functions that the intelligent monitoring device identifies a mounting state of interior plate cards and the sub-plate information and the like are achieved.

A bearing assembly, a pump with a bearing assembly and a method of lubricating a pump bearing using a bearing assembly. The bearing assembly includes a bearing carrier and a bearing housing that are rotatably connected to one another to permit axial adjustment of the pump's impeller or other fluid-conveying apparatus, as well as variable rotational positioning of the bearing carrier relative to a pump housing. Numerous lubricant access apertures placed around the periphery of the bearing carrier facilitate lubricant passage from a connection on the bearing housing to the bearings, regardless of the rotational position of the carrier relative to the bearing housing or other pump structure.

The invention discloses a low-temperature water-based waterproof agent and a production technology thereof. The low-temperature water-based waterproof agent comprises components in percentage by weight as follows: 10%-28% of perfluoroalkylethyl acrylate, 2%-18% of acrylic resin, 1%-15% of organosilicon, 0.1%-5% of a surfactant, 2%-15% of acetic acid, 0.1%-2% of an initiator and the balance of deionized water. A product has good hand feeling, the use amount of fluorine monomer is reduced, the cost is reduced, energy conservation and emission reduction are achieved, the service life and service time of a machine are prolonged, and more importantly, the defect that certain leather and part of textile fabric which are not temperature-resistant cannot be subjected to waterproof treatment when the product is absent previously is overcome.

The invention discloses an anti-wear nanometer copper lubricating oil. The anti-wear nanometer copper lubricating oil is prepared by a method with the following steps of 1, adding a nonionic surfactant into a suspension liquid of nanometer copper anhydrous ethanol, and stirring, so as to obtain a mixed solution A; 2, adding the mixed solution A into basic lubricating oil, treating by ultrasonic waves, centrifuging, and removing precipitate, so as to obtain a mixed solution B; 3, relieving the pressure of the mixed solution B, and distilling, so as to obtain the nanometer copper lubricating oil. The nanometer copper lubricating oil has the advantages that the nanometer copper is uniformly dispersed into the basic lubricating oil under the action of intersolubility between the suspension liquid of nanometer copper anhydrous ethanol and the basic lubricating oil, and the surface tension of the basic lubricating oil is reduced by the nonionic surfactant, so as to block the agglomeration ofnanometer copper particles, and improve the suspension stability of the nanometer copper; while the good lubricating property of the nanometer copper lubricating oil is guaranteed, the anti-wear property of the nanometer copper lubricating oil is greatly improved, the mechanical wear is further repaired, the surface friction coefficient is reduced, and the service cycle of the nanometer copper lubricating oil is extended.