280results about How to "Mature and reliable technology" patented technology

The invention discloses automatic build-up welding equipment for an abrasion-resistant layer on an inner wall of a pipeline and an automatic build-up welding method for realizing efficient automatic production of high abrasion-resistant composite conveying pipelines. The equipment comprises a host, a direct-current gas protective welding power supply, a protective gas storage tank and a control box with a built-in automatic control device; one end of a base is provided with a head, a main shaft, a chuck and an adjustable roller bracket; the other end of the base is provided with a welding gun running execution device, and the device comprises a driving and reversing platform, a swing platform, a welding gun lifting mechanism, a wire feeder and a welding gun; the front end of the welding gun is provided with a welding torch, and a welding wire and a protective gas conveying pipe are communicated to the front end of the welding gun; the anode of the welding power supply is connected with the welding torch, and the cathode of the welding power supply is connected with a workpiece; and the moving parts are driven by a step motor through the automatic control device. The operation process comprises early preparation, parameter setting, welding and reset stopping; and by setting control parameters, the execution parts run according to the set parameters to form build-up welding layers tightly arranged and uniformly distributed in a spiral motion locus.

The invention discloses a satellite positioning and static leveling-based layered settlement monitoring system and method. The system comprises a base station, a monitoring station which is arranged in a settlement monitoring area and a monitoring center which communicates with the monitoring station, wherein the base station communicates with the monitoring station; the monitoring station comprises an observation pillar, a second Beidou satellite signal receiver mounted on the observation pillar, a data transmission unit, a plurality of layered settlement marks and a static level system; the static level system comprises a plurality of static level gauges; each layered settlement mark is provided with one static level gauge; one of the static level gauges is arranged on the observation pillar. The method comprises the following steps: I, setting of the monitoring system; II, data acquisition and transmission; III, data processing and analysis. According to the satellite positioning and static leveling-based layered settlement monitoring system and method, the calibration and correction problems of the instable working base points during the static leveling can be effectively solved, and the long-term, remote and real-time monitoring for the layered settlement deformation of the geologic bodies can be realized.

The invention discloses a self-driving two-dimensional molybdenum(IV) telluride homotype heterojunction near infrared electric detector and preparation method thereof. The detector is characterized in that a bottom electrode in ohmic contact with the N type semiconductor substrate is arranged on the lower surface of an N type semiconductor substrate, the upper surface is covered by a mask layer which is made of insulating materials, a through hole is reserved in the center of the mask layer, a two-dimensional molybdenum(IV) telluride film is deposited in the through hole and is contacted with the N type semiconductor substrate to form an N-N homotype heterojunction, and the upper surface of the molybdenum(IV) telluride film is provided with a top electrode in ohmic contact with the molybdenum(IV) telluride. The near infrared electric detector is simple in preparation process, mature and reliable in technology, easy to control, and the obtained device has excellent performances of high sensitivity, high speed, high detectability, and self-driving.

The invention provides an edible oil quality inspection method based on 1H-nuclear magnetic resonance (NMR) fingerprint spectra and multivariate analysis. The edible oil quality inspection method is mainly characterized by comprising steps of developing 12 1H-NMR fingerprint spectra for identifying swill-cooked dirty oil; establishing an oil 1H-NMR fingerprint spectrum database according to the 12 1H-NMR fingerprint spectra; classifying samples in the database by clustering analysis; establishing a discriminant function, substituting 1H-NMR data of an unknown sample into the discriminant function; and judging the quality of the unknown sample according to a calculated result. The edible oil quality inspection method has the advantages of small sample quantity, simple pretreatment method, high sensitivity, low cost and high accuracy.

The invention relates to an alarm escape indication system and method, particularly to an intelligent automatic fire alarm escape indication system and method thereof. The system is composed of intelligent terminal equipment, an intelligent smoke detector, an intelligent heat detector, manual alarm equipment, an intelligent fire automatic alarm escape controller, and a remote firefighting monitoring center. According to the method, the intelligent smoke detector and the intelligent heat detector detect that the smoke concentration or temperature reaches an alarm value, an alarm signal is sent out and transmit fire information to the intelligent fire automatic alarm escape controller; the controller calculates escape and self-rescue guide information; the information is displayed and broadcasted to the intelligent terminal equipment by an Wi-Fi unit and is also transmitted to the remote firefighting monitoring center simultaneously; and the remote firefighting monitoring center organizes multiple units instantly to rush to the spot so as to carry out rescue or evacuation. According to the invention, the intelligent degree is high; functions of infinite long-distance fire-proof alarm, linked rescue, intelligent escape and evacuation, network service, and wireless internet access service are realized; the system is simple; the cost is low; the operation is convenient; and the system and method can be popularized and used conveniently.

A method using an alkaline process to extract alumina in coal ash relates to a method using coal ash to produce alumina and is characterized by comprising the steps of (1) manufacturing coal ash, limestone or lime into raw slurry with alkali liquid; (2) firing the raw slurry into clinker; (3) performing alkaline leaching on the clinker; (4) desiliconizing leaching liquid to perform liquid-solid separation; (5) carbonating and resolving desiliconized liquid after liquid-solid separation to obtain aluminium hydroxide; (6) roasting the aluminium hydroxide to achieve alumina; (7) performing alkaline leaching on solid phase residues obtained from the step (3); (8) using leaching liquid obtained from the step (7) to adjust molecular ratio of a system in desiliconization treatment; or adding lime in the leaching liquid obtained from the step (7), filtering after reaction, and obtaining filter residues which are used for desiliconization of the step (4). The method can be used for treating coal ash raw materials from different sources to produce alumina.

The invention relates to a complex manganese ore powder pelletization process. High-crystal-water manganese powder ore is treated by a cylindrical drier for drying, a four-roll crusher for coarse crushing and a high-pressure roller mill for fine milling pretreatment, bentonite and flux are added in finely milled manganese ore concentrate obtained after pretreatment for pelletization, green pelletsare dried and preheated on a chain-grate machine, preheated pellets enter a rotary kiln for high-temperature roasting and then is cooled to obtain a pellet product. Compared with ball milling process, the invention can reduce the energy consumption in pretreatment flow, improve the ballability index of finely milled material, eliminate thermal explosion of pellets and solve the technical problemsthat narrow manganese ore softening temperature area affects pellet roasting. The adoption of two-segment preheating effectively prevents cracks on the preheated pellets and improves the performancesof the preheated pellets; the addition of limestone or dolomite as flux changes the alkalinity and the slagging property of raw material and enhances the pellet roasting and next melting; and the produced manganese ore pellet has high strength, large output and high manganese grade.

The invention discloses a preparation method for a clinker of alumina produced by a sintering process, and relates to an improvement on the process of producing alumina by the sintering process. The preparation method is characterized in that according to the preparation process of the preparation method, Bayer alkali red mud powder, lime, bauxite, soda ash and pulverized coal are mixed uniformly to be raw material pellets, and the raw material pellets are sintered to obtain the clinker of the alumina produced by the sintering process. A dry-process sintering method of the sintering process disclosed by the invention can be used in the process of producing alumina by a mixed combination process and a series process, the process disclosed by the invention has stable clinker quality, reduced clinker sintering energy consumption by more than 40%, and increased clinker kiln production capacity by more than 60% in comparison with the existing alumina production process, thereby having the effect of saving energy and reducing consumption in a large extent.

The invention relates to a preparation method and application of multivariate cooperation flame-retardant polyol and belongs to the technical field of chemical, energy saving and protection and environmental-friendly new processes. The preparation method comprises the steps of heating pentaerythritol, other alcohols and phosphorus pentoxide to obtain phosphorus cycle flame-retardant intermediate; continuously adding epoxy compound and tetrabromophthalic anhydride, and heating to perform catalytic reaction to obtain multivariate cooperation flame-retardant polyol. The preparation process is simple, the cost of raw materials is low, the operation is easy to perform and the prepared product is can be used for preparing polyurethane heat insulating materials.

The invention discloses a method for discriminating acacia honey and rape honey on the basis of H-nuclear magnetic resonance, belongs to the field of food detection, and relates to an application of H-nuclear magnetic resonance fingerprint in food detection. The method comprises the following steps: respectively establishing the H-nuclear magnetic resonance database of the rape honey and the H-nuclear magnetic resonance database of the acacia honey, constructing a discriminating model by using combination of a factor analysis technology and a discriminant analysis technology, discriminating a honey sample to be detected, and determining the honey to be discriminated as the rape honey or the acacia honey. The method has the advantages of reliable technology, simple operation, treatment of a large amount of samples in a short time, rapid discrimination of the kind of honey, avoiding of subjective factors and personal errors, and scientific and reliable conclusion.

The invention belongs to the field of emergency rescue and rescue, and relates to intelligent distress signal transmission, in particular to an intelligent rescue method and system based on NFC near-field communication, LoRa low-consumption long-range communication technology and unmanned aerial vehicle technology. According to the method and the system, the LoRa communication equipment carried onthe unmanned aerial vehicle platform is used for collecting the help seeking information sent by the LoRa node under the extreme environment condition that a conventional communication environment islacked or damaged, so that the state of a rescue target is determined, and a communication channel between the rescue target and the target is constructed. The mobile terminal in the system serves asa user interface terminal, activates the lifesaving system through NFC communication and sends out help seeking information in time. The LoRa node communication module has the advantages of being lowin power consumption, high in penetrating power, long in remote communication distance and the like, is suitable for information communication under the conditions of natural disasters and severe living environments, and can dynamically form a communication network with an LoRa gateway carried on an unmanned aerial vehicle platform to transmit rescue target characters, positions and other information.

The invention relates to a device used for parking a vehicle, in particular to a rotary type upper-layer parking platform which is suitable for being constructed by the road. A vehicle carrying plate of the rotary type upper-layer parking platform can rotate. The rotary type upper-layer parking platform comprises a hollow upright post, a vehicle carrying plate and a lifting device which drives the vehicle carrying plate to rise and fall along the upright post, wherein the outer side of the upper part of the upright post is provided with a rotating device, the outer side of the middle part of the upright post is provided with a rotating platform, the rotating device is arranged on the rotating platform movably, an upper slide rail and a vehicle carrying slide block which can slide along the upper slide rail are arranged on the rotating device, the vehicle carrying plate and the vehicle carrying slide block are connected, and the lower part of the upright post is provided with a lower slide rail and a push slide block which can slide along the lower slide rail.The invention makes full use of the existing ground parking position, especially a roadside parking position or smaller space, features simple structure, low cost and quick parking time, can park two vehicles simultaneously and solves the problems of complicated structure, larger occupied area, long parking time and the like in the prior art.

The invention is a magnetic damping life apparatus which includes shell, spool, insurance ropes and driving device. The spool support on the shell through rotation shaft, one end of insurance ropes is fixed and wound on the spools. Said magnetic damping life apparatus also includes electrical and mechanical conversion device and energy receiving device, the spool drives the electrical and mechanical conversion device through the driving device, electrical and mechanical conversion device transforms the mechanical energy into electrical energy which is received by the receiving device to increasing the safety and practicality of magnetic damping life apparatus.

The invention discloses a visible marine product catcher. The visible marine product catcher comprises a catcher body for catching marine products; a magnetic door is arranged below the catcher body; the catcher body is connected with a catching guide rod to be operated and controlled by a water surface worker; the catching guide rod is provided with a camera used for observing underwater conditions. When the visible marine product catcher works, the water surface worker knows the underwater conditions through the camera, moves the catcher body to be above a submarine object through the catching guide rod, then descends the catching guide rod, controls the magnetic door to open and continuously descends the catching guide rod; after the submarine object enters the magnetic door, the magnetic door comes into contact with the seabed and then is closed, and the submarine product is contained in the catcher, and thus the catching of the marine product is completed. The visible marine product catcher disclosed by the invention adopts a mature and reliable technology, is relatively low in cost, can be installed on a same trawler in a large number, can create very considerable economic benefit and can be conveniently popularized and used in marine product farmers widely.

The invention discloses an anti-loosing clamping bolt set, which can effectively prevent a nut from loosing and is relatively easy to process. The anti-loosing clamping bolt set consists of a bolt (1) and a nut (11), and is characterized in that: the bolt (1) is divided into two parts, namely a fixed section bolt and an anti-loosing section bolt; the diameter of the fixed section bolt is more than that of the anti-loosing section bolt; the rotation directions of fixed section bolt external screw threads (2) and anti-loosing section bolt external screw threads (4) are opposite; an anti-loosing nut sleeve (5) passes through the anti-loosing section bolt and then is sleeved on the nut (11); the inner bottom face of the anti-loosing nut sleeve tightly presses against a fixed section bolt end face (3); and an anti-loosing nut (12) is tightly screwed on the anti-loosing section bolt to fix the anti-loosing nut sleeve (5). Figure 3 is the attached drawing of the instruction and the abstract.

The invention discloses an AR augmented reality-based musical instrument-assisted play and concerto experience system. The system comprises an image acquisition unit, an image analysis unit, a second storage unit, an operation unit, a processing unit and a display unit, wherein the image acquisition unit is used for acquiring a video image of a current user held musical instrument in real time, and the video image comprises holding finger nails; the image analysis unit is used for analyzing an image of the current musical instrument, recognizing a profile and an operation area of the current musical instrument, and recognizing and positioning strings or keys of the musical instrument; the second storage unit is used for storing music scores, finger actions corresponding to syllables and notes, and virtual animation elements of the operation of an auxiliary instrument; and the processing unit is used for displaying the positioned strings, keys or striking areas of the musical instrument on the display unit according to the profile and the operation area of the current musical instrument, setting a display area of the animation elements, and calling the corresponding music scores, corresponding pressing actions and the virtual animation elements of the operation of the auxiliary instrument in the second storage unit to be displayed in the display area of the animation elements.

The invention discloses a method for producing an aluminum oxide by using an alkaline method. The method is characterized in that the production process comprises the following steps of: (1) adding lime and sodium carbonate into aluminum-containing mineral so as to prepare into a raw material; (2) sintering so as to prepare into clinker; (3) carrying out alkaline leaching on the clinker; (4) carrying out desilicication refining on the lixivium; (5) carrying out carbonation decomposition on the refined liquid; (6) roasting aluminum oxide; (7) carrying out alkaline leaching on the solid phase residue obtained in the step (3) and subsequently carrying out liquid-solid separation; (8) dealuminizing the lixivium; (9) using the dealuminized residue as the desilicication seed crystal in the step (4); (10) using the dealuminized liquid in the step (8) for circulation leaching and blending the dealuminized liquid with the lixivium obtained in the step (3), or using the dealuminized liquid as an evaporation stoste; and (11) using the obtained solid phase residue as raw materials of cement or other building materials. The method disclosed by the invention has the characteristics of low consumption and high aluminum oxide recycling rate; and the residue can be directly used as raw materials for producing cement or other building materials.

The invention relates to a combined process for preparing a Fischer-Tropsch synthetic oil raw material gas by utilizing a coke-oven gas. The combined process comprises the following steps of: with coarse coke-oven gas as a raw material, removing naphthalene, tar, hydrogen sulfide, hydrocyanic acid, ammonia, organic sulfur and other heavy-hydrocarbon impurities out of coarse coke-oven gas in a pretreatment unit;; then pressurizing the coarse coke-oven gas in a gas compression unit; then converting into CH4 through oxidation of non-catalysis part of the coke-oven gas; and finally carrying out precision desulfurization and deep desulfurization, thereby obtaining the high-quality Fischer-Tropsch synthetic oil raw material gas. According to the invention, through a step-by-step purification combined process, impurities and the sulfurous gas in the coke-oven gas are removed efficiently, so that coke-oven gas becomes the synthetic gas with high additional value and high economic benefit; the coking industrial chain is prolonged; the coke-oven gas is converted into fuel oil, greenhouse gas and toxic gas which are brought about by gas combustion are reduced; the combined process meets national requirements of energy conservation, emission reduction and industry policy and has the advantages of low sulfur, high degree of purification, obvious environment effect, high resource utilization ratio, relative low construction investment in devices, low operating cost and the like.

The invention discloses a rehmannia health-care tea and a preparation method thereof. The invention belongs to the technical field of health-care tea leaves. The rehmannia flower is the flower of the rehmannia which is one of famous ''four major drugs'' in our country and has wide pharmacological activity and use, but the rehmannia flower is given up for the long time. The inventor finds out that the main active substance in the leaves of the rehmannia has good water-solubility and can be completely dissolved outside through repeatedly brewed with boiled water or hot water, so the tea is suitable for developing as health-care tea, and the tea is scientific and rational. Under the guidance of the theory of the traditional Chinese medicine, the preparation method is determined according to the tea preparing theory and the chemic property of the components. The technology is mature and can be easily popularized. The rehmannia health-care tea and the rehmannia have similar components and functions, have health-care actions of removing the heat from the blood, nourishing Yin, generating body fluid, tonifying kidney and filling essence, and can be applied to various people. The tea has auxiliary adjusting actions of preventing the diseases and promoting to recover while person brew and drink the tea.

The present invention relates to synthesis of a magnetic nano-adsorbent material and an application method thereof to the treatment of a heavy metal waste liquid. First, a magnetic nanoparticle material capable of specific complexation with heavy metals ion in water to form a complex is synthesized; in an external magnetic field, the complex quickly gathers from the waste liquid into the direction of the magnetic field to form a solid phase; and water phase separation is carried out to achieve the removal of heavy metal ions in water. At the same time, aiming at the characteristics of high concentrations of heavy metals and acid environment of the effluent produced by a COD detector, the invention develops a reduction-adsorption-regeneration treatment flow: reducibility iron powder reduces dichromate into trivalent chromium ions under acidic condition; then the magnetic adsorbent material is used to adsorb and remove metal ions under slightly alkaline condition; and finally the adsorbent material is regenerated under acidic condition. The nano-adsorbent material and application thereof can realize fast, efficient and low-cost removal of heavy metal ions in water, and provide a novel method for treatment of heavy metal contaminated waste liquid.