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144results about How to "Overcoming processing" patented technology

Electric welding rod for hand welding X80 grade steel oil, gas transmission pipe

The invention relates to an electric welding rod used for manual welding. The electric welding rod comprises core welding-wires containing the following chemical compositions (wt%): 0.020-0.100 of C, 0.350-0.550 of Mn, 0.015-0.030 of Si, 0.005-0.015 of P, 0.002-0.005 of S, 0.01-0.20 of Cr, 0.01-0.30 of Ni, 0.01-0.20 of Cu, 98.675-99.47 of Fe, and the residue of impurity; the electrode coating comprises the following compositions: 28-38 of marble powder, 16-28 of fluorite powder, 2-8 of feldspar powder, 2-7 of white titanium pigment, 4-8 of electrolytic manganese, 3-7 of ferrosilicon powder, 6-9 of ferrotitanium powder, 0.5-2 of ferromolybdenum powder, 3-8 of nickel powder, 10-25 of iron power and 5-8 of other elements. The chemical compositions, the performance and the structure of the welding seam of a grade X80 steel pipe welded by using the electric welding rod are closer to the pipe body, and without heat treatment, the welding seam can meet the requirements on technical indicators such as high strength, high toughness, low hardness and the like of the grade X80 steel pipe used for oil and natural gas transferring; the electric welding rod overcomes the defaults in the prior art that the welding seam is required to be heat-treated after welding, the quality is poor, and engineering accidents are easy to happen when in use and the like.
Owner:ATLANTIC CHINA WELDING CONSUMABLES +1

Multifunctional modularized floating island for in-situ restoration of polluted rivers and lakes

The invention relates to a multifunctional modularized floating island for in-situ restoration of polluted rivers and lakes. The floating island consists of five functional modules including a waterscape floating island module, a flexible filler floating island module, an aeration floating island module, a power supply floating island module and a functional floating island module. Each functional module is formed by floating beds in the same shape and size; different functional components are matched on the floating beds respectively so as to form the above functional modules. 2-5 different functional modules are selected in proportions according to the water quality difference and area load of the polluted river, and are optimally combined, thus various micro-environments are formed along the water flow direction, the self-cleaning ability of rivers and lakes are prompted, and the COD (chemical oxygen demand) and ammonia and nitrogen of the polluted water can all reach the V-type standard of surface water. With the adoption of the technology, the problems of single function, poor applicability and low water quality improving efficiency of the plant floating island structure in the prior art are solved, and the in-situ high-efficiency water quality improvement of water in polluted rivers and lakes is achieved.

Color holographic display system based on diffraction distance control and method thereof

InactiveCN103412470ASwitch in real timeFlexible and convenient loading methodOptical elementsSpatial light modulatorWavelength
The invention discloses a color holographic display system based on diffraction distance control and a method of the color holographic display system based on the diffraction distance control. The problem that color crosstalk exists in existing color holographic display is mainly solved. The system comprises a coherent light source array, an expanded beam collimating array, a control unit, a space light modulator array, a diffraction distance control unit and an achromatic lens. The implementation steps of the method comprise the first step of generating monochrome computing holograms, the second step of loading the holograms, the third step of reproducing the holograms and the fourth step of generating a color reproduction image. An optimal Fresnel diffraction distance obtained under different wave lengths in a calculating mode is utilized to generate the three monochrome computing holograms, and Fresnel diffraction with an optimal diffraction distance is respectively carried out on the three monochrome computing holograms. The color holographic display system and the method have the advantages that the hologram loading mode is flexible, light paths are simple and convenient to adjust, and the effect of eliminating the color crosstalk is good.
Owner:XIDIAN UNIV

Anti-interference system-on-chip and method of intelligent antenna based on FPGA (Field Programmable Gate Array)

The invention provides an anti-interference system-on-chip and method for an intelligent antenna based on an FPGA (Field Programmable Gate Array). The anti-interference system-on-chip for the intelligent antenna based on the FPGA comprises a receiving antenna, a multi-channel receiver, an A/D (Analog-to-Digital) converter, a digital orthogonal interpolation module, a covariance matrix module, a complex positive definite Hermite matrix to real symmetric matrix module and a covariance matrix inversion module. In the invention, the anti-interference method for the intelligent antenna based on the FPGA comprises the following specific steps of: 1, data receiving; 2, digital orthogonal interpolation; 3, covariance matrix data calculation; 4, complex positive definite Hermite matrix to real symmetric matrix; and 5, covariance matrix inversion. By using the invention, the real-time and fast anti-interference of the intelligent antenna is realized under the situation that interference exists in a communication channel, and thus, the problems of poor instantaneity, high hardware cost, low integration degree and incapability of parallel processing in an anti-interference system for the intelligent antenna based on (Digital Signal Processing) are solved.
Owner:XIDIAN UNIV

Digital imaging acquisition system for aggregate grading detection and acquisition method thereof

The invention discloses a digital imaging acquisition system for aggregate grading detection. The system consists of an aggregate sampling device, an image acquiring device, an optical processing optimizer and communication and storage equipment, wherein the aggregate sampling device comprises a material dividing plate, a distance adjusting rod and an angle adjusting rod; the image acquiring device comprises an infrared laser, a linear array camera and an image acquiring card; the optical processing optimizer comprises a filter device and a diffuse coating layer; and the communication and storage equipment comprises a data line and a computer. A digital imaging acquisition method for aggregate grading detection comprises the following steps of: setting the aggregate sampling device; setting the image acquiring device; setting the communication and storage equipment; acquiring an image of a sampled aggregate; and transmitting and storing the image. An aggregate stream is sampled and acquired by arranging the material dividing plate, so the problem that the image of a falling stream of the aggregate must be completely acquired is solved and the defects of poor quality of the acquired image, difficult separation of particles and a large amount of processing data are overcome.
Owner:CHANGAN UNIV

Flood and drought crop rotation paddy field soil gas in-situ acquiring system and method

InactiveCN101413851AAvoid creaturesAvoid physical blockageSamplingSoil gasSoil science
The invention relates to a rice field-upland field rotation rice soil gas in-situ acquisition system and an acquisition method thereof, which belongs to the field of the gas acquisition technology and is specially used for the in-situ acquisition of the soil gas in the rice soil section plane under the condition of the rice field-upland field rotation. The invention comprises that: PVC pipes with the 40 mm inside diameter are chosen; total eight pores are uniformly distributed on the exchange interface of the pipe wall at the bottom of every gas cavity; all gas cavities are separated with PVC sheets which are perforated and allow a nylon tube gathering gas to pass through. A nylon slim tube passes through the upper part of the PVC sheets and is connected to a triple valve with a silicone tube. The acquisition method comprises detection of air tightness, installation, pre-equilibration and the system keeps airtight state; when in observation, a syringe directly gathers the needed voluminal gas. The invention can be used for gathering soil gas in the inundation state or in the drainage state, can gather in-situ gas with different section plane depth on the same locus, has easy operation and easily available materials, can be wildly applied to the rice field and wetland soil gas acquisition, and overcomes various kinds of defects in the prior art.
Owner:NANJING AGRICULTURAL UNIVERSITY

Silicon dioxide nanofiber membrane, and preparation method and application thereof

InactiveCN106939471ASimple processOvercoming the need to add directing agentsFilament/thread formingNon-woven fabricsRNA extractionSurface-active agents
The invention relates to the field of nanometer materials, and discloses a silicon dioxide nanofiber membrane, and a preparation method and application thereof. The method comprises the following steps: (1) preparing spinning solution containing nanosilicon dioxide, a surface active agent, a high-molecular polymer and solvent, and (2) processing the spinning solution prepared in step (1) by utilizing electrospinning technique, and drying to obtain the silicon dioxide nanofiber membrane, wherein the average grain diameter of the nanosilicon dioxide in step (1) ranges from 20nm to 120nm. The fiber diameters of the silicon dioxide nanofiber membrane which is prepared by the method provided by the invention range from 80nm to 600nm; the thickness is small; therefore, the bore diameter and specific surface area of the silicon dioxide nanofiber membrane are relatively large; the surface energy and surface activity are high; the silicon dioxide nanofiber membrane provided by the invention can be applied into an RNA (ribose nucleic acid) extraction kit adsorbing column, and has the advantages that the extraction scope and category are wide, the extraction is rapid, simple and convenient, the purification rate is high, and the ratio of performance to price is high.
Owner:MATERIAL & IND TECH RES INST BEIJING

Combined water purifying device and method

The invention relates to a combined water purifying device and method. The combined water purifying device comprises an ozone generating and exhaust treating system, a catalytic filter system, a post-treatment effluent collecting system and a gas-water alternate operation control system, wherein the ozone generating and exhaust treating system is connected to the catalytic filter system; and the gas-water alternate operation control system is sued for controlling the operation of the combined water purifying device. The combined water purifying device provided by the invention is compact in structure and small in floor area, and can be automatically controlled and upgraded. The combined water purifying method provided by the invention integrates ozone catalytic oxidation, bubbleless aeration and membrane filtration. Raw water is subjected to coagulating sedimentation and then flows into a catalytic filter tank; a membrane assembly is immersed below a liquid level; ozone is introduced into the membrane assembly to carry out bubbleless aeration; purified water is filtered and enters into the membrane assembly; and exhaust generated by the catalytic filter system enters into an exhaust breaking device to break ozone. The combined water purifying method provided by the invention can effectively treat relatively trace refractory organics in a water body, and deeply purifies micro-polluted water body.
Owner:广东中科华膜净水科技有限公司

Silicon carbide composite zero-valent iron porous ceramics for sewage treatment and preparing method

The invention relates to silicon carbide composite zero-valent iron porous ceramics for sewage treatment and a preparing method. The porous ceramics is prepared by uniformly mixing, by mass, 60-90 parts of silicon carbide micro powder, 5-25 parts of zero-valent iron power, 1-5 parts of glass powder, 3-20 parts of carbon powder, 1-8 parts of graphite, 0.1-0.5 part of ethanediol, 0.1-0.5 part of ammonium polyacrylate, 2-10 parts of polyvinyl alcohol and water, then spray granulation is carried out, a blank is manufactured, and under the protection of nitrogen, the blank is sintered for 1 h at the temperature of 1350-1400 DEG C and cooled to the room temperature to obtain the silicon carbide composite zero-valent iron porous ceramics for sewage treatment. The zero-valent iron is compounded into the ceramics and has the advantages of being low in toxicity, low in price, easy to operate, environmentally friendly and free of secondary pollution. The porous ceramics is simple in process, low in cost, capable of being produced on a large scale and applied to a practical sewage treatment project, and the problems that in the prior art, secondary pollution is caused as the treatment effect is unobvious and not thorough are solved.
Owner:SHAANXI UDC MATERIALS TECH CO LTD

High-efficiency broadspectrum flocculant and preparation method thereof

InactiveCN101381136AOvercome the disadvantages of low temperature turbidity removal performance reductionOvercoming processingWater/sewage treatment by flocculation/precipitationChemical industryIron sulfate
The invention relates to a high-efficiency broad spectrum flocculant, which is mainly prepared by the following compositions in weight percentage: 40 to 50 percent of cationic polyacrylamide, 0.8 to 1.2 percent of OP-10 emulsifier, 8 to 13 percent of polysilicic aluminum iron sulfate, 0.8 to 1.2 percent of sodium hydroxide and 35 to 48 percent of vaal water. The preparation method for the high-efficiency broad spectrum flocculant is as follows: the cationic polyacrylamide, the polysilicic aluminum iron sulfate, the OP-10 emulsifier and the vaal water are added into a reaction kettle of a vacuum dispersion machine and stirred for 15 to 20 minutes; and the sodium hydroxide is added into an emulsifiable solution and continuously stirred for 20 to 30 minutes. The high-efficiency broad spectrum flocculant simultaneously has the advantages of an inorganic flocculant and an organic flocculant and simultaneously overcomes the inherent defects of the inorganic flocculant and the organic flocculant. The high-efficiency broad spectrum flocculant has wide application scope, has good water purifying effect on water quality with various concentrations, nonferrous wastewater and a plurality of kinds of industrial wastewater, and can be widely used for purification treatment of industrial waste water in the printing and dyeing, paper-making, chemical industry and so on.
Owner:湖北中楚化工有限责任公司

Lonestone detector and control method of boulder detector

InactiveCN104678443AOvercome the shortcoming that you can only choose the specified device and cannot perform any three-dimensional cross-hole measurementOvercome the disadvantage of not being able to carry out any three-dimensional cross-hole measurementElectric/magnetic detectionAcoustic wave reradiationElectricityTablet computer
The invention provides a lonestone detector and a control method of the lonestone detector, wherein the boulder detector comprises a high-density electrical method main unit, a palm computer or a tablet computer communicating with the high-density electrical method main unit by bluetooth, a processing device communicating with the palm computer or the tablet computer by WiFi (wireless fidelity), at least two electrode converters connected with the high-density electrical method host electrically, at least four high-density electrical method cables connected with the electrode converters electrically, and a plurality of electrodes arranged on the high-density electrical method cables respectively. According to the boulder detector and the control method provided by the invention, the shortages of the traditional high-density electrical method detector that only the appointed device can be selected and any three-dimensional cross-hole measurement cannot be carried out are overcome, the purposes of measuring while quasi real-time inversion imaging are realized, the working time of technicians is saved greatly and the working efficiency is improved; meanwhile, a measuring device can be further adjusted timely according to quasi real-time imaging results to carry out the fine measurement and the imaging continuously, so that the purpose of detecting the boulder accurately is achieved.
Owner:SHENZHEN MUNICIPAL DESIGN & RES INST +1

Asphalt fume dust collection and purification system

The invention relates to an asphalt fume dust collection and purification system. The asphalt fume dust collection and purification system comprises a dust treatment tower, an oil filtration odor removal box, a main gas spray pipeline, a turbulent flow type power wave water membrane washing tank and a precipitation, oil separation and circulation water tank, wherein a washing water tank, a dust blocking plate for blocking and separating dust, a PVC (polyvinyl chloride) ball filter material box for adsorbing dirty oil and a dust precipitation tank are arranged in the dust treatment tower, a precision oil filtration barrel, an activated carbon odor removal device and a waste oil collection pool are arranged in the oil filtration odor removal box, a spiral spray head is arranged in the main gas spray pipeline, a stainless steel compound filter layer as well as the spiral spray head and an activated carbon odor removal filter layer which are correspondingly arranged in layers are arranged at the inner layer of the turbulent flow type power wave water membrane washing tank, and multiple non-woven fabric oil filtration screens are arranged in the oil separation and circulation water tank. Dust and waste oil in asphalt fume are repeatedly washed, filtered, adsorbed, separated and respectively collected by a sectional continuous treatment method, the up-to-standard emission of waste water and air can be further ensured, and the asphalt fume dust collection and purification system has the advantages of reasonable structure, reliability in working, stable performance, high efficiency and very strong practicality.
Owner:上海北新月皇新材料集团有限公司

Antinode core-board precast concrete prefabricated composite wall

ActiveCN106193435AOvercome the thicknessOvercome the disadvantage of heavy weightConstruction materialWallsHorizontal forceFloor slab
The invention relates to an antinode core-board precast concrete prefabricated composite wall comprising an antinode core-board unit. The antinode core-board unit comprises an antinode core board, edge reinforcing columns and end boards; the board surface of the antinode core board is wavy; the edge reinforcing columns are fixedly arranged on two sides of the antinode core board, the length direction of the edge reinforcing columns is parallel to the direction of wave crests or wave troughs of the antinode core board, and the upper and lower ends of each edge reinforcing column are parallel to the upper and lower ends of the antinode core board; the end boards are respectively and fixedly arranged on the upper and lower sides of the antinode core board and the edge reinforcing columns; a reinforced concrete board covers the outer sides of the antinode core board and the edge reinforcing columns. The antinode core-board precast concrete prefabricated composite wall is high in field fabrication degree, fast in construction and high in industrialization and commercialization degree, and is more convenient to connect with steel beams and floor slabs. Advantages of various existing lateral force resistance members can be integrated in the composite wall, and the composite wall can bear vertical load as well as resist horizontal force and can play an important role in aseismic design of multi-story and super-high-rise building structure systems.
Owner:HEFEI UNIV OF TECH
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