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297results about How to "Strong maneuverability" patented technology

Method for recycling metal oxide from waste flue gas denitration catalyst

The invention discloses a method for recycling a metal oxide from a waste flue gas denitration catalyst, comprising the following steps of: crushing the waste flue gas denitration catalyst to carry out pre-roasting pretreatment at high temperature; adding Na2CO3 into the waste flue gas denitration catalyst according to the proportion, mixing, pulverizing and roasting at high temperature to obtain a sintering block; crushing the sintering block and putting the crushed sintering block into hot water, and stirring and lixiviating to obtain titanate; adding sulphuric acid into the titanate, filtering, water-washing and roasting to obtain TiO2; adding the sulphuric acid into the lixiviated filtering liquid to regulate a pH value to 8.0-9.0; adding excessive NH4Cl for vanadium precipitation; decomposing NH4VO3 obtained from filtering at high temperature to prepare a V2O5 product; adding hydrochloric acid into the filtering liquid subjected to the vanadium precipitation to regulate a pH value to 4.5-5.0; adding CaCl2 for molybdenum and tungsten precipitation; treating the CaM0O4 and CaWO4, obtained from filtering, with the hydrochloric acid and roasting to obtain MoO3 and WO3. The method of the invention has the advantages of simple process and apparatus, high recycling efficiency, good product technical data, large treatment capacity and the like.
Owner:HUADIAN ELECTRIC POWER SCI INST CO LTD

Method for realizing fast and automatic modeling of transformer substation IEC 61850 by adopting XML information recombination

ActiveCN101706773AEasy system maintenanceStrong maneuverability
The invention provides a method for realizing fast and automatic modeling of a transformer substation IEC 61850 by adopting XML information recombination, which is applied to IED modeling of space layers in a digital transformer substation and a traditional transformer substation by adopting IEC 61850 communication. The method comprises the following steps of: recombining the IED information by adopting XML, and providing an IED information standardization interface; editing and setting the standardized XML files; loading an embedded minimum model which accords to the IEC61850 standard; appointing an sAddr information format in advance, automatically adding sAddr information and leading out an ICD model file; analyzing the led-out ICD model file by the IED, and automatically extracting the sAddr information, and automatically mapping model leafage nodes to a real-time database according to the sAddr information; and enabling the information of the real-time database to normally communicate with station control layer equipment by the IED through adopting an IEC61850 protocol. The model collocation can be set by engineering personnel according to actual engineering. Therefore, the invention greatly shortens the time for generating the IEC61850 model, improves the efficiency of production and regulation and is convenient for 61850 engineered actualization and generalization.
Owner:BEIJING SIFANG JIBAO AUTOMATION +1

Flame tube head assembly brazing method

The invention discloses a flame tube head assembly brazing method and belongs to the technical field of aero-engine part manufacturing. In a brazing method of a traditional flame tube head assembly, an assembly substrate at a positioning welding point is oxidized due to the fact that a tube front section and a splash pan are positioned through argon arc welding, so that during brazing, brazing filter metal cannot moisten the substrate at the positioning welding point, the brazing seam is not continuous, and a design requirement of a continuous brazing seam cannot be achieved, and after brazing, a cold air hole is blocked by the brazing filter metal, the brazed rate between a sleeve and a swirler cannot achieve a design requirement of more than 80%. The flame tube head assembly brazing method has the advantages that the assembly substrate at the positioning welding point is avoided from being oxidized due to positioning through energy storage spot welding, enabling the paste brazing filter metal to moisten the substrate at the positioning welding point and guaranteeing the continuous brazing seam design requirement; enabling a to-be-welded position on the internal side of the sleeve to satisfy the brazed rate requirement and avoiding the brazing filter metal blocking the cold air hole during the brazing process due to the fact that check soldering flux pains inside the cold air hole; the operability is strong and production costs are obviously reduced.
Owner:SHENYANG LIMING AERO-ENGINE GROUP CORPORATION

Metal defect detection method of laser-electromagnetic ultrasonic nondestructive testing system

The invention relates to a metal defect detection method of a laser-electromagnetic ultrasonic nondestructive testing system. The method adopts the laser-electromagnetic ultrasonic testing system composed of a pulsed laser, a linear focusing unit, a transverse wave electromagnetic ultrasonic sensor, a three-dimensional mechanical stepping device, a signal amplification filtering system, a digital oscilloscope and a computer. The system is utilized to excite a Gaussian laser pulse, which is then delivered to the surface of a metal material through an optical focusing system, and at the same time surface waves as well as transverse waves are excited. The transverse wave electromagnetic ultrasonic sensor is used for receiving, and on the basis, positioning detection of the surface and near surface defects can be performed. The method makes use of the transverse wave electromagnetic ultrasonic sensor to receive diffraction transverse waves generated when the transverse waves encounter an internal defect, and when the sensor is position right above a metal material internal defect, the received diffraction transverse wave signal has the strongest amplitude, so that the horizontal position of the defect can be determined, and the vertical position of the defect can be determined by the defect echo time. The method can realize detection of metal material surface, near surface and internal defects at the same time.
Owner:山东山科光电技术与装备研究院有限公司

Karst area soil nutrient reserve sampling and calculating method

The invention discloses a karst area soil nutrient reserve sampling and calculating method. The method comprises the steps that: (1) a dry land is selected at a karst area; (2) the sample land is divided into small samples, and soil augers are firmly drilled into soil in every network; (3) a soil profile stratified sample is dug from every land sample according to soil average thickness, and soil unit weights are determined by using cutting rings; (4) the soil samples are naturally air-dried in a shade, and are filtered; plant roots in soil samples in the cutting rings are removed, washed by using clear water, and bake-dried to constant weight; and the plant roots are weighed, such that root biomasses are obtained; (5) according to a soil organic carbon content and soil unit weight relationship scatter-plot established according to ecosystem soil profile data, organic carbon contents are determined, and soil unit weights are calculated; (6) soil nutrient densities are calculated according to soil volumes; and (7) according to soil nutrient densities of the samples of the ecosystem, unit-area soil nutrient reserve is obtained. The method is simple, easy, convenient, time-saving and labor-saving, and has high operability. With the method, karst area soil nutrient reserve data can be accurately obtained.
Owner:INST OF SUBTROPICAL AGRI CHINESE ACAD OF SCI

Method for identifying and locating deep favorable ore-forming space of granite-type uranium mine

ActiveCN108020865AStrong maneuverability
The invention belongs to the technical field of geological exploration, and specifically relates to a method for identifying and locating a deep favorable ore-forming space of a granite-type uranium mine. The invention aims to provide a method for identifying and locating a deep favorable ore-forming space of a granite-type uranium mine so as to provide a basis for the delimitation of a uranium ore-forming favorable section of the granite-type uranium mine in allusion to the deficiencies of the prior art. The technical scheme of the invention comprises the steps of 1, deducing the deep uraniummineralization scale according to a geological method, and identifying a deep favorable ore-forming space; 2, deducing deep extension of known fault structures and buried fault structures by using anaudio magnetotelluric and high-precision magnetic measurement geophysical method, and detecting a deep favorable ore-forming space; 3, detecting deep uranium mineralization information by using a partial content geochemical exploration method and a soil thermoluminescence method, and providing identification information of the deep favorable ore-forming space; and 4, realizing identification andlocation for the deep favorable ore-forming space according to the identification in the step 1 for a deep ore-forming mark of the typical ore deposit by combining three-dimensional anatomy of the deep favorable ore-forming space and adopting location for the deep ore-forming environment according to audio magnetotelluric sounding and high-precision magnetic measurement in the step 2 and deep ore-forming information detected according to partial content geochemical exploration and soil thermoluminescence in the step 3.
Owner:BEIJING RES INST OF URANIUM GEOLOGY

Preparation method for graphene-molybdenum disulfide-polyaniline ternary composite electrode material

The present invention relates to the field of material science, and aims to provide a preparation method for a grapheme-molybdenum disulfide-polyaniline ternary composite electrode material. The method comprises the steps of dispersing graphene in deionized water, then dispersing molybdenum trioxide and potassium thiocyanate in deionized water, uniformly mixing up the above material, subjecting an obtained mixture to hydrothermal reaction, washing and drying an obtained precipitate to obtain substrate powders, placing substrate powders in dilute acid for ultrasonic dispersion, adding aniline monomer and an oxidizing agent, stirring uniformly, reacting at the room temperature, filtering, washing, and drying to obtain the ternary composite electrode material. The preparation method is simple in process and strong in operability. The temperature of the synthesis condition is wider in range, and the requirement on the substrate material is lower. Therefore, the preparation method is more suitable for industrial production. In the preparation field of super capacitor electrode materials, the preparation method has a wider application prospect. Based on the preparation method, electrode materials of uniform morphology and good electrochemical performance can be prepared. Meanwhile, a high electrical double-layer capacitor and a pseudo capacitor can be obtained simultaneously. As a result, the cycle performance is more excellent.
Owner:ZHEJIANG UNIV

Accurate pre-distribution method of railway multi-type catenary hanging strings

ActiveCN105691243AStrong maneuverabilityHighly integrated method
The invention relates to an accurate pre-distribution method of railway multi-type catenary hanging strings. The contact suspension has a plurality of types, the concentrated load distribution is nonuniform, the hanging string pre-distribution accuracy is directly influenced by complex line conditions, the pre-distribution methods are not uniform for hanging string pre-distribution programs of different suspension types, the operation is complex, and the field test period is long. The accurate pre-distribution method comprises the steps of standardizing the pre-distribution processes of catenary hanging strings of a plurality of types; acquiring design line-related data, design line vertical curve factor data, and hanging string pre-distribution measuring data; and inputting the design line-related data, inputting the design line vertical curve factor data for pre-distribution supplementation calculation, inputting the hanging string pre-distribution measuring data, establishing different calculation models according to different catenary working condition types, establishing a global stiffness matrix and a load matrix, forming a multidimensional linear equation set through combination, and solving to acquire an initial hanging string pre-distribution calculation result. According to the accurate pre-distribution method, the operability is high, the method integration level is high, the calculation speed is high, and the method is applicable to pre-distribution of rigid and flexible whole hanging strings.
Owner:CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP

Construction method of shock-isolation rubber support

The invention discloses a construction method of a shock-isolation rubber support. The construction method comprises the following steps: 1) binding a lower buttress with a steel bar; 2) arranging a positioning steel plate; 3) arranging a sleeve and an anchor bar; 4) pouring concrete below a shock-isolation layer floor; 5) erecting a side formwork for the lower buttress and pouring concrete; 6) arranging the shock-isolation rubber support; 7) retesting the shock-isolation rubber support; 8) erecting a side formwork for an upper buttress; 9) binding the upper buttress with a steel bar; and 10) pouring concrete on the upper buttress, particularly, pouring concrete on the upper buttress, a beam, the plate, the side formworks and the steel bars simultaneously after the upper buttress, the beam, the plate, the side formworks and the steel bars passing examination. The construction method has the beneficial effects of being simple and feasible, and strong in operability; during the construction of arranging the shock-isolation rubber support, the bottom of the shock-isolation rubber support is easy to achieve complete compactness, and the project quality is enhanced; the construction progress is accelerated, and the construction capability of a construction unit is improved, thereby bringing good economic benefit for enterprises.
Owner:CHINA RAILWAY 16TH BUREAU GRP CO LTD +1

Indoor auxiliary sweet potato drought tolerance identification method

InactiveCN104255449AStrong maneuverabilitynot limited by season
The invention relates to a sweet potato drought tolerance identification method, and in particular relates to an indoor auxiliary sweet potato drought tolerance identification method, belonging to the technical field of sweet potato drought tolerance identification. The method comprises the following steps: by selecting a test tube seedling stem section which is subjected to subculture for more than or just 50 days as an explant, cutting a single section, inoculating the explant into a high-permeation identification culture medium, performing inoculation treatment for 30 days, subsequently surveying the relative root growth number coefficients of different varieties, and judging the drought tolerance grade of the varieties according to the relative root growth number coefficients of different varieties, wherein the drought tolerance of the variety of which the relative root growth number coefficient is greater than or equal to 1.0 is high, the drought tolerance of the variety of which the relative root growth number coefficient is greater than 0.5 and less than 1.0 is medium, and the drought tolerance of the variety of which the relative root growth number coefficient is smaller than or equal to 0.5 is relatively poor. The method is simple to operate, is flexible and convenient and applicable to screening on a great number of materials, can relieve the workload of field drought tolerance identification and can improve the working efficiency.
Owner:JIANGSU XUHUAI DISTRICT XUZHOU AGRI SCI INST +1

Adjustable straightening device for fruit tree planting in agriculture and forestry

The invention discloses an adjustable straightening device for fruit tree planting in agriculture and forestry. The adjustable straightening device comprises a first fixing semi-ring plate, a second fixing semi-ring plate, a screw rod, a first tree clamping plate and a second tree clamping plate, wherein the first fixing semi-ring plate is connected with the second fixing semi-ring plate to form an annular structure; the upper side surface of the first fixing semi-ring plate and the upper side surface of the second fixing semi-ring plate are separately provided with a sliding groove; the sliding groove in the first fixing semi-ring plate communicates with the sliding groove in the second fixing semi-ring plate; the first fixing semi-ring plate and the second fixing semi-ring plate are separately connected with inner threaded pipes in a symmetrical manner; and one end of each inner threaded pipe is separately hinged to the first fixing semi-ring plate or the second fixing semi-ring plate. By adopting the adjustable straightening device, straightening heights can be adjusted freely according to inclining positions of fruit trees; besides, straightening directions and straightening angles can be adjusted flexibly; compared with a current binding-type straightening device, the adjustable straightening device has the advantages that the adjustable straightening device is more flexible, higher in operability and easy to dismantle, and can be adjusted freely along with growth of the fruit trees.
Owner:GUIZHOU SHIBING WANFU AGRI TECH DEV CO LTD
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