212results about How to "Guaranteed travel" patented technology

The invention discloses a vehicle security risk warning and accident reconstruction system and method of big data processing. The system comprises a vehicle-mounted video terminal and a cloud big data processing platform, all kinds of parameters, video images, voice information and the like of vehicle operation are analyzed by the big data processing platform in the background to provide effective information for accident authentication, driving behaviors of drivers, vehicle conditions and the like, and provide a novel method for confirmation of responsibility, vehicle improvement, traffic management and the like. The system is a research and development system of a key common technology based on cloud computing, collected videos are encoded in an H.264 manner, stored locally and are circularly covered, and after an abnormal driving behavior is detected, video data within 10-30 seconds before and after the time point are transmitted to a service system for accident analysis and reconstruction. The system solves the vehicle driving security risk problem and provides a vehicle security public service platform.

The invention relates to a continuous casting process and a continuous casting machine for an extra-thick plate blank. A continuous casting method and a vertical casting machine are used for producing the extra-thick plate blank, the problem that a casting blank is too thick to be bent and straightened is solved, production flow is shortened, production efficiency is improved and production cost is reduced; and simultaneously, with the vertical casting machine, the casting blank has no bent and straightened deformations, upward flotation of nonmetallic impurities in molten steel is facilitated, and the cleanness of the casting blank is improved; a continuous temperature measuring device and a tundish heating device are both arranged in a tundish, so that a superheat degree of the molten steel in the tundish can be steadily controlled at 10-30 DEG C, and super-cooled or super-heated casting under a condition of low casting speed is avoided; a soft reduction process is executed on a solidified tail end of the casting blank and a dummy bar, so that the problems of center segregation and center porosity in the casting blank are solved; a vertical cutting mode and an oblique pulling ejection mode are used, so that reliable output and feeding of the casting blank and the dummy bar are guaranteed.

The invention provides a blast furnace molten iron silicon content change trend prediction method, a blast furnace molten iron silicon content change trend prediction device and a storage medium. Themethod includes the step that characteristic parameters during an iron making process which are related to silicon content change in blast furnace molten iron are acquired, and a silicon content change trend is predicted on the basis of trained blast furnace molten iron silicon content prediction models, wherein the blast furnace molten iron silicon content prediction models include a first layerprediction model and a second layer prediction model, wherein the first layer prediction model is used for preliminarily predicting the silicon content change trend according to an original sample, and the second layer prediction model predicts the silicon content change trend for the second time according to the prediction result of the first layer prediction model so as to obtain the silicon content change trend. According to the blast furnace molten iron silicon content change trend prediction method, the blast furnace molten iron silicon content change trend prediction device and the storage medium of the invention, a limit gradient enhancement and long-term and short-term memory network fusion model is established to predict the trend of the silicon content in the molten iron, a reference basis is provided for a blast furnace operator to judge the change trend of the condition of the blast furnace and control the amplitude of the blast furnace in advance, and therefore, the smoothness of the iron making process can be ensured, and the quality of the molten iron can be maintained within a normal range.

The invention provides an intelligent multifunctional bus station which comprises a station frame, a canopy, columns, and a seat. A bus real-time information query board is installed on the front of the bus station between two adjacent close columns. A convenience board is installed on the back of the bus real-time information query board. A rolling billboard is installed between two adjacent distant columns on the front and back of the station. A shared all-weather umbrella device is installed at one side of the station, and a dustbin is installed at the other side of the station. A camera and shared WIFI equipment are installed on the station frame. A solar panel is installed on the canopy. The columns are provided with a plurality of bus station two-dimensional code scanning areas. The bus station is highly intelligent, informationized, safe and convenient. Convenience and safety are brought to bus passengers, and the multi-page rolling billboard of the bus station can display a lot of useful information. Through use of the solar panel, the running cost of the bus station is reduced. A mobile phone version intelligent bus system greatly enhances the convenience in taking bus.

The invention discloses a high-precision map road information rapid generation system and method based on space-time trajectory reconstruction. The system comprises a track reconstruction module, a lane determination module, a lane separation module, a lane boundary line drawing module and a multi-data synthesis fusion module, wherein the track reconstruction module performs reverse space-time reconstruction of a vehicle driving track by utilizing the vehicle track information acquired by a roadside sensing unit and a vehicle-mounted unit, the lane determination module determines a lane according to a distance between vehicle driving tracks, the lane separation module draws a lane separation line at a midpoint of connecting lines of middle points of the adjacent single lane tracks, the lane boundary line drawing module draws a lane boundary line according to the vehicle driving track direction and the driving speed by taking the lane separation line as the reference and combining the road standard width and various line widths, and the multi-data synthesis fusion module fuses the collected roadside sign information with a map. The system is advantaged in that problems that an existing diversion high-precision map drawing process is complex, and special conditions of a road surface cannot be reflected in time are solved.

A technology for casting the steel-based cooling wall features that the cooling medium which is the mixture of corundum powder, iron powder and electrode powder is filled in its cooling pipeline. Said cooling medium features strong cooling action, low thermal expansibility, not adhering to pipe wall, and easy removing it.

The invention discloses an aluminum-containing and sulfur-containing series gear steel smelting process. Liquid iron is required to contain 0.20-0.50% of Si, less than or equal to 0.035% of S, and less than or equal to 0.110% of P, and at a temperature T greater than or equal to 1250 DEG C; lime for an electric furnace and refining is required to contain greater than or equal to 90% of CaO and less than or equal to 1.2% of SiO2, and has the activity degree of greater than or equal to 300 and the granularity of 10-40mm; a low-silicon refining agent is required to contain greater than or equal to 45% and less than or equal to 55% of CaO, less than or equal to 2.0% of SiO2, and greater than or equal to 35% and less than or equal to 40% of Al2O3. The liquid iron hot charge ratio of the electric furnace reaches up to 90%; for LF refining, a first strong and later weak deoxidization manner is adopted; at the middle-late stages, a weak deoxidizer is adopted for furnace slag maintenance to realize further deoxidization. Meanwhile, deoxidization and S removal are performed, and then an S wire is fed to obtain a certain S content; in addition, the S wire is allowed to be fed only in more than 5 minutes after the denaturalization treatment of feeding a calcium-iron wire into VD liquid steel, and therefore, the formation of CaS inclusion in a clogging material at other water gap is prevented; and at last, the castability of the liquid steel is guaranteed while excellent structural properties of the steel product are obtained, and the purity of the liquid steel is improved.

The invention belongs to the technical field of mineral machining and particularly relates to a novel method for producing iron concentrates through complex refractory iron ore. The novel method includes the steps that firstly, the complex refractory iron ore is subjected to ore grinding classifying treatment; classified overflow products are subjected to magnetic separation preconcentration, and powdery preconcentrated concentrates are obtained; the powdery preconcentrated concentrates are fed into a suspension roaster to obtain suspension roasted ore; water is added to the suspension roasted ore, and ore pulp is manufactured, preconcentration is conducted, and obtained magnetic concentrates serve as rough concentrates; and an electromagnetic separator is used for conducting concentration on the rough concentrates, the obtained concentrated concentrates are filtered, moisture is removed, concentrate products with the iron grade ranging from 60% to 68% are obtained, the recovery rate of iron ranges from 80%-90%, the concentrate products with the iron grade ranging from 60%-68% are subjected to reverse floatation desilicication, and concentrate products with the iron grade ranging from 61% to 69% are further obtained. The iron concentrate products with the iron grade larger than 60% are obtained, the recovery rate of iron is larger than 80%, product indexes are stable, the economical efficiency is good, and complex refractory iron ore resources can be efficiently utilized.

The invention discloses a method for blocking a dummy bar head; the method mainly adopts a rail head and a cold burden to block the dummy bar head according to the shape of a dovetail groove on the dummy bar head. The method has the advantages that the requirements for an operator are lower, the method is easy to be mastered and can solve the problems of casting failure caused by nonproficiency of operators or minor failure of equipment. By adopting the method, except for the casting failure caused by objective reasons resulting from liquid steel components and temperature, the method can not cause casting failure in other cases, can especially overcome the abnormal phenomenon such as untight closing of a stopper and the like and ensure successful casting. The method can effectively ensure the smooth overall continuous casting production, increase the operating rate of a casting machine and reduce production cost.

The invention relates to a square matrix type road traffic inducing method and system. The square matrix type road traffic inducing method includes the steps that according to geographical location information and driving route information of a vehicle, the length of vehicles already waiting for passing of a next lamp control intersection which the vehicle is to pass through is obtained; the length of the vehicles already waiting for passing of the next lamp control intersection is taken into account when preset speed is calculated, so that it is ensured that the first vehicle about to reach the next lamp control intersection travels according to the preset speed and directly passes through the next lamp control intersection without stopping. It is fundamentally avoided that because the length of the vehicles already waiting is not taken into account, a motorcade has to stop to wait for a road lamp when reaching the next lamp control intersection according to the preset speed, and therefore energy sources are saved.

The invention discloses a method for smelting stainless steel containing Ni, which is characterized in that the method mainly comprises the following steps: low-grade nickel-containing chromium-containing ore is dried and then is sintered; the sintered ore is smelted into molten iron containing the Ni in a blast furnace; the molten iron is subject to pretreatment desulfurization and dephosphorization to form a stainless steel mother solution; iron alloy is melted in an electric furnace; the refining is performed in a stainless steel smelting furnace and a VOD furnace; and a stainless steel billet is obtained by continuous casting. The low-grade nickel-containing chromium-containing ore is used to substitute for chromium and nickel alloy to smelt the stainless steel, so the cost for the stainless steel is reduced greatly. At the same time, the method can fully utilize the low-grade ore, ensure that the idle scarce resource is fully utilized, and can reduce cost.

The invention discloses a rare earth adding control method for high-strength rare earth girder steel. The cleanliness of molten steel of rare earth high-strength girder steel and the yield of rare earth in the steel is improved by optimizing the steel-making process. In early-stage rare earth steel research, due to the fact that the key control processes such as a rare earth adding mode, adding time and the like are not completely mastered, the yield of rare earth is low and is about 35%; and meanwhile, the number of rare earth composite inclusions in steel is large, and the continuous castingpourability of a casting machine is poor. In order to increase the yield of the rare earth, the cleanliness of molten steel is guaranteed before the rare earth is added, and the component uniformityof the rare earth in the molten steel is guaranteed after the rare earth is added. Meanwhile, protective pouring is conducted in the casting process of a casting machine, secondary oxidation of the molten steel is prevented, and the yield of the rare earth in the steel can be remarkably increased.

The invention relates to the technical field of casting of ingots, and provides a round ingot die. The round ingot die comprises a die body, a lug and an insulation board; an inner cavity is formed in the die body; the cross section of the outer side surface of the die body is polygonal wave shaped. According to the round ingot die, the radiating area of the side surface of the ingot is increased; hot melt at the outermost layer can be quickly cooled to form a chilling layer; the thickness increase of the chilling layer is sped up; therefore, static pressure in pouring of hot melt can be borne; crack can be prevented; the difficulty at pouring of the round ingot can be greatly reduced; meanwhile, the size precision of the outer side surface of the round ingot die cannot influence the size precision of the round ingot, so that the requirement on the processing precision of the outer side surface of the round ingot die is reduced, the process and working houses are decreased, and the cost can be saved. The invention further provides a round ingot manufacturing method. The method is that the degree of superheat of hot melt is 40 to 55 DEG C; the linear speed of pouring of an ingot body is 80 to 220mm/min; the linear speed of filling and pouring of a dead head of the insulation board is 35 to 90mm/min. The method can properly reduce the casting temperature and speed; the round ingot can be quickly radiated; therefore, the surface cracks can be decreased.

The invention discloses high-alkalinity high-lubricity continuous casting crystallizer casting powder. The casting powder comprises CaO, SiO2, Al2O3, MgO, Na2O, K2O, Li2O, F- and C. The alkalinity of the casting powder is 1.40-1.90. The viscosity of the casting powder is 0.02 Pa.S-0.15 Pa.S at 1300 DEG C. The fusion point of the casting powder is 1020 DEG C-1150 DEG C. The invention further provides a method for performing continuous casting on a peritectic steel slab under the condition that the high-alkalinity high-lubricity continuous casting crystallizer casting powder exists. In this way, not only is the crystallinity of the casting powder improved, but also the lubricity of the casting powder is improved. In addition, the defect of longitudinal cracks on the surface of the peritectic steel slab is remarkably overcome in the continuous casting process of the peritectic steel slab, and the problem of steel sticking and break-out of the crystallizer due to casting powder does not happen.

The invention provides an ore blending method for improving a heat-state intensity index of a sintering ore. The ore is prepared from the following raw materials in percentage by weight: 66-88 percent of hematite powder, 5-15 percent of magnet ore powder, 3-12 percent of ludwigite concentrate fines, and 4-7 percent of mixed material; the ludwigite concentrate fines comprise the main components in percentage by weight: 52-54 percent of TFe, 20-24 percent of FeO, 4-6 percent of SiO, 0.5-1.0 percent of CaO, 10-13 percent of MgO, 0.2-0.4 percent of Al2O3, 3-5 percent of B2O3, 0.3-0.5 percent of S, 3-5 percent of burning loss Ig and 1.0-1.5 percent of crystal water. According to the ore blending method, the heat-state intensity index of the sintering ore can be obviously improved, and low-temperature reduction degradation ratio of the sintering ore is reduced on the premise that the requirements of a blast furnace on the grade of the sintering ore and the alkalinity can be completely met. The low-temperature reduction degradation index RDI+3.15mm of the sintering ore reaches an average of 62.92 percent, and the low-temperature reduction degradation index RDI-0.5mm reaches 7.11 percent, so that the smooth operation of the production of the blast furnace can be guaranteed, the yield of the blast furnace is improved, and the coke ratio is reduced.

The invention relates to a method for displaying multi-item alarm information at a single position of an operation screen. The method for displaying multi-alarm information in a single position of the operation screen comprises the following steps: using HMI system software in GE Company to organize the order of the multi-item alarm information of each device in real time according to the importance; expressing all the chains of the alarm information in a program; and manufacturing the abnormal chain information at a screen position, and selecting the display mode and content according to need. The method for displaying the multi-item alarm information at the single position of the operation screen has the advantages of wide information contents and complete scheme, ensures that an operator directly observes and knows the information contents through the frequently used screen and knows a dispelling method, saves complicated calculation process of searching the program, shortens the accident handling time, improves the equipment operation rate, and guarantees the device safety and smooth operation of the production; and the method is simple, the program is concise, the display screen is clear, and the operating method is easy to grasp.

The invention relates to an auxiliary tool and a method for replacing a wire rope of a bridge crane. A gantry frame is manufactured on a cover plate on the upper part of a fixed pulley block of a drum of a bridge crane trolley; lifting rings are arranged on the two sides of the gantry frame; a chain hoist and a fixed pulley are arranged on the lifting rings on the two sides respectively; thus the old wire rope is replaced by a new one. Compared with the prior art, the auxiliary tool and the method have the advantages that: after the device is used, the time for replacing the wire rope is greatly shortened each time, the personal safety of construction personnel is guaranteed, the labor intensity of workers is relieved, the labor productivity is improved, and smooth running of workshop production is guaranteed.

The invention relates to a tap hole integral pouring mud sleeve, which belongs to fittings for an ironmaking blast furnace tap hole and particularly relates to a mud sleeve for opening or blocking a tap hole. The mud sleeve is made of a refractory material arranged in a mud sleeve frame, and is characterized in that the refractory material is a pouring material and is compactly filled in the mud sleeve frame. The mud sleeve frame is a box-shaped body, and a consolidated hanger is arranged at the inner side of a frame plate; the rear end of the mud sleeve frame is connected with a blast furnace shell, a door frame is arranged at the front end of the mud sleeve frame, and a template is embedded in the door frame; a pouring hole is arranged at the upper side of the template, a module is fixed on the template and is opposite to the center of the tap hole, and an iron pipe provided with a tapping channel is arranged between the module and the tap hole; and compared with the prior art, the invention has the advantages that the tap hole mud sleeve is durable, the service life is markedly prolonged, the manufacturing workload of the mud sleeve is reduced, the usage quantity and the expense of the refractory material are saved, the gas leakage is reduced, and the casthouse operation is safe; the operation under pressure can be carried out, thereby avoiding damping down due to the manufacture of the tap hole mud sleeve, ensuring the timely slag iron tapping of the blast furnace and ensuring blast furnace successful operation, energy saving, consumption reduction and yield increase.

The invention provides a method for the synthetic slag washing of a tundish. The method comprises the following steps of: manufacturing a slag washing tube with a small upper opening, a large lower opening and an upturned edge, wherein an argon blowing hole is reserved in the slag washing tube; before the pouring of a large tank, seating the slag washing tube on a tundish cover of the tundish, and inserting a long nozzle in the lower part of the large tank into the slag washing tube for pouring; and in the initial pouring stage, medium pouring stage and final pouring stage of the large tank, adding a certain amount of pre-molten slag into the slag washing tube respectively, and performing argon blowing, wherein the alkalinity of the pre-molten slag in the slag washing tube is controlled to be 2.5 to 3.2 in the pouring process. Tiny impurities with sizes of 5 to 100 mu m can be effectively removed from molten steel, the removal of tiny aluminum oxide impurities from the molten steel is facilitated, and the impurity removal efficiency and effects of the tundish are remarkably enhanced. The cleanliness of the molten steel is greatly improved, and the quality of steel is improved. In addition, the metallurgical functions of the tundish are completed, and the phenomenon that a submerged nozzle of the tundish is jammed is effectively reduced to ensure smooth production.

The present invention relates to detection of protecting slag for steel casting, and is especially process of detecting heat conductivity coefficient of protecting slag. The present invention detects the heat conductivity coefficient of protecting slag with several thermocouples arranged in certain intervals to measure the temperature in the sample period. The present invention can measure the heat conductivity coefficient of protecting slag and its changing trend and heat transmission controlling capacity.