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199results about How to "Realize the craft" patented technology

Machine vision detecting system for detecting defects of rolling roll grinding surface

The invention discloses a machine vision detecting system for detecting defects of a rolling roll grinding surface, belonging to the field of grinding processing surface defect detection. The system comprises a cleaning device, an image acquisition device, an image acquisition control unit and an image processing and analysis unit, wherein the cleaning device can be used for forming a uniform laminar flow liquid layer on the surface of a rolling roll to be detected; the image acquisition device is arranged around the rolling roll to be detected; the image acquisition control unit is respectively connected with the rolling roll to be detected and the image acquisition device; the image processing and analysis unit is electrically connected with the image acquisition device and is used for realizing defect classification identification, defect evaluation and over-limit alarm as well as fault diagnosis. The machine vision detecting system can be used for carrying out qualitative and quantitative detection on the defects such as short scratches, micro-vibration, spots, spiral patterns and reticulate patterns on the rolling roll grinding surface, overcomes the defects that the existingartificial naked eye detection method is high in subjectivity and lower in accuracy, easily causes inspection missing, can not realize quantitative detection, and the like, and improves detection efficiency, accuracy and reliability.
Owner:TSINGHUA UNIV +1

Subsection-studding all-open-stoping backfilling collaborative mining method

The invention discloses a subsection-studding all-open-stoping backfilling collaborative mining method. A panel ore block is divided into primary studdings and secondary studdings; a retrusive mining working mode that the mining is carried out out at intervals, the secondary studdings are mined and then the primary studdings are stoped is adopted; when each secondary studding is stoped, a certain thickness of an ore body is reserved on the top of the ore body and is used as a temporary protection layer; a drilling drift is arranged in each primary studding and is used for drilling the top ore body and the ore body of the primary studding; meanwhile, the drilling drift has a function of filling the drift, the function of filling the drift is achieved by a goaf of a low-level secondary studding; a filling hole is formed in the wall of the drift and is used for immediately filling the goaf of each secondary studding; a large-size stope structure parameter is designed in the ore body; a production mode of mechanical mining work is adopted; a drill jumbo is used for drilling, and a scraper discharges ores, so that the safety and high-efficiency mining is realized. The subsection-studding all-open-stoping backfilling collaborative mining method disclosed by the invention is high in ore recycling rate and high in safety under the condition that a roof surrounding rock is unsteady.
Owner:CENT SOUTH UNIV +1

Smelting process for efficient slagging and desulfurization of LF aluminum killed steel

The invention discloses a smelting process for efficient slagging and desulfurization of LF aluminum killed steel. The smelting process for efficient slagging and desulfurization of the LF aluminum killed steel comprises the following steps that S1, converter steelmaking is carried out, and the end point temperature of a converter is controlled within 1610-1660 DEG C; the adding amount of scrap steel is less than or equal to 70 tons; and a strong bottom blowing mode is adopted in the later converter blowing stage to enhance molten pool stirring. According to the smelting process for efficientslagging and desulfurization of LF aluminum killed steel, converter tapping, argon blowing station and LF refining tasks are adjusted through process design to form a three-in-one refining process ofconverter tapping, argon blowing station and LF refining, LF slagging work is advanced, a rapid slagging process system is formulated, 80% or above of slagging slag materials are added in the tappingprocess through design optimization, and slag melting is promoted by fully utilizing tapping steel flow impact kinetic energy, molten steel sensible heat and ladle bottom argon blowing stirring kinetic conditions; an argon station adopts a top-bottom strong stirring proper deoxidation process, slag is rapidly formed to promote steel slag reaction, top slag reduction pre-desulfurization is realized, and LF slagging desulfurization burden is reduced; and an LF target is heated once to basically complete slagging and desulfurization tasks.
Owner:MAANSHAN IRON & STEEL CO LTD

Method and device for continuously producing dyes

The invention discloses a method and a device for continuously producing dyes. The method comprises the following steps: adding diazotization reaction raw materials into an ingredient kettle, controlling temperature in the kettle, allowing the materials to flow in a tubular reactor through an overflow orifice, detecting the reaction state through an online detection device, continuously discharging the diazotization compound solution obtained through the reaction, continuously feeding the diazotization compound solution and a coupling component solution according to a specified ratio, allowing the materials to flow into the tubular reactor through the overflow orifice, detecting the reaction state through the online detection device, transferring the coupling reaction materials into a crystal transformation kettle, performing crystal transformation, and performing filter pressing to obtain a dye filter cake, wherein the filter cake mother solution and the wash water are circulated for preparing the coupling component solution. The reaction temperature, material flow and reaction state detection device are automatically subjected to interconnected control. According to the method, automatic and continuous dye production is realized, the production capacity, the product quality and yield are improved, the labor intensity and working conditions of workers are improved, the waste water, water gas and waste residue amounts in the dye production process are greatly reduced, and circular economy and cleaner production process are realized.
Owner:ZHEJIANG DIBANG CHEM

Online monitoring method for covert faults and joint process defects of power cable

The invention discloses an online monitoring method for covert faults and joint process defects of a power cable. The online monitoring method comprises seven steps, namely current acquisition, fault recording, data caching, data transmission, map drawing, comprehensive analysis and fault positioning. The online monitoring method comprises the specific steps of: acquiring transition and mutation of transfinite current of all earthing points in a cable sheath layer by using a current transformer arranged on the cable; uploading the acquired data to a monitoring host by a fault recording device connected with the current transformer; transmitting the received data to a monitoring platform in a TCP / IP (Transmission Control Protocol / Internet Protocol) Ethernet interface manner by the monitoring host; and carrying out comparative judgment, fault reason analysis and fault segment positioning on the acquired transition and mutation data of the transfinite current according to a specific analytic method by a server arranged in the monitoring platform. According to the system, the early finding of the covert faults and the joint process defects of the power cable can be realized and the basis for ensuring long-term normal operation of the power cable is provided; and comprehensive monitoring, accurate fault positioning and early warning can be realized.
Owner:康威通信技术股份有限公司

Ultraviolet light resistant ring protective cover material and white concentric cable produced thereof

An ultra violet radiation resistant environmental protection sheathing material is mainly prepared by the following materials according to the parts by weight: 40-50 pars of polyvinyl chloride resin, 6-8 parts of trioctyl trimellitate, 4-6 parts of dioctyl sebacate, 7-9 parts of dioctylphthalate, 4-6 parts of ca-zn composite stabilizer, 1-1.5 parts of epoxidized soybean oil, 1-1.5 parts of diantimony trioxide, 1-1.5 parts of diantimony trioxide, 10-13 parts of magnesium hydrate, 8-10 parts of refined calcium carbonate, 8-10 parts of titanium dioxide, and 0.3-0.5 parts of ultraviolet absorbent. The invention technically solves the difficult point of compound formulation of the ultra violet radiation resistant white sheathing material, greatly increases the resistance to ultra violet radiation performance of the product, has strong practicability and lays the material foundation for the design and development of resistance to ultra violet radiation coaxial-cables. Based on the resistance to ultra violet radiation white polyvinyl chloride sheathing material, the resistance to ultra violet radiation environmental protection sheathing material technically solves the technical difficulties of resistance to ultra violet radiation performance, softness, UL mechanical physical property, ROHS environment requirements and the like which are difficult to be achieved completely, meets the strict requirements of the application of products on tropical and subtropical regions and has remarkable social effect.
Owner:ZHEJIANG WANMA GRP SPECIAL ELECTRONCABLE

Three-way shock isolation device for satellite

The invention discloses a three-way shock isolation device for a satellite. The three-way shock isolation device mainly comprises a frame body, a cover plate, a bottom plate and four energy absorption material blocks, wherein the cover plate is mounted on the frame body, and is in surface contact with the frame body; the cover plate and the frame body relatively displace on the surface of the cover plate, so that a shock energy absorption action space is formed in the direction; the bottom plate is mounted on the frame body, and is not in contact with the cover plate; the four energy absorption material blocks are respectively mounted in four independent spaces formed by the frame body, the cover plate and the bottom plate, and are in tight fit with the frame body, the bottom plate and the cover plate. The three-way shock isolation device can bear objects subjected to shock isolation reliably and safely, ensures the mounting rigidity, the strength, the position precision and the like of the objects subjected to shock isolation, meanwhile, effectively isolates the shock transmission in three directions, ensures that the objects subjected to shock isolation are in a small enough shock environment reliably, and achieves the purpose that the objects subjected to shock isolation or shock sensitive parts are in on-track operation safely.
Owner:SHANGHAI SATELLITE ENG INST

Preparation method of sludge-straw composite biomass activated carbon

The invention relates to a preparation method of sludge-straw composite biomass activated carbon, which comprises the following steps (1) sufficiently mixing and kneading municipal sludge as a main raw material, agricultural waste as an auxiliary material and wood tar as a binder, granulating, and drying to obtain sludge-straw composite particles, (2) feeding the sludge-straw composite particles into a carbonization furnace, carbonizing and activating at the same time under an oxygen-free or oxygen-limited condition to obtain a product sludge-based biomass activated carbon and pyrolysis gas, cooling the sludge-based biomass activated carbon, and packaging the cooled sludge-based biomass activated carbon, and (3) performing dust removal and purification on the pyrolysis gas to obtain wood tar, wood vinegar and non-condensable gas, returning the non-condensable gas as fuel to the carbonization furnace, returning a part of the wood vinegar as an activating agent to be sprayed into the carbonization furnace, and recycling the wood tar as a granulation raw material. The activated carbon is prepared from the sludge and the agricultural straw, the preparation method is simple, the price is relatively low, good economic benefits and ecological benefits are achieved, and high market competitiveness and popularization value are achieved.
Owner:SHANGHAI RES INST OF CHEM IND

Wet phosphoric acid production process through ceramic membrane method

ActiveCN104828795AExcellent resistance to phosphoric acid corrosionLow resistance to phosphoric acid corrosionPhosphorus compoundsPhosphoric acidSmall footprint
The invention relates to a wet phosphoric acid production process through a ceramic membrane method. The wet phosphoric acid production process is characterized in that crude phosphoric acid filtered by a filter is pumped into a ceramic membrane separation system to be filtered, so that suspended matter in the crude phosphoric acid is removed, and clarified and transparent diluted phosphoric acid is obtained; and a ceramic membrane concentrated solution returns into the filter to circulate and is discharged along with gypsum filter residues. Compared with a conventional wet phosphoric acid production process, the wet phosphoric acid production process provided by the invention has the characteristics that the crude phosphoric acid filtered by the filter is not aged and clarified and directly enters the ceramic membrane separation system to be filtered, and therefore, the technological process and the crude phosphoric acid processing time are shortened; furthermore, a flocculating agent is not needed in the treating process; and, after the crude phosphoric acid is filtered, the solid content in the crude phosphoric acid is reduced to 0.01 wt% and below. The wet phosphoric acid production process disclosed by the invention can effectively solve the technical problems of long technological process and crude phosphoric acid processing time and low suspended matter removing efficiency in the traditional wet phosphoric acid production process; simultaneously, the ceramic membrane separation system in the invention is simple in equipment and small in occupation area; and continuous operation can be realized.
Owner:NANJING UNIV OF TECH

One-way impact isolating device for satellite

The invention discloses a one-way impact isolating device for a satellite. The one-way impact isolating device is mainly composed of a frame body, a cover plate, a bottom plate and two energy absorption material blocks. The cover plate is mounted on the frame body and is in surface contact with the frame body, a relative displacement section is formed inside the plate surface of the cover plate between the cover plate and the frame body, and thus an impact energy absorption action space exists in the direction. The bottom plate is mounted on the frame body, and the bottom plate and the cover plate are in surface contact. The energy absorption material blocks are contained into two enclosed spaces which are defined by the frame body, the cover plate and the bottom plate and are in close fit with the frame body and the cover plate. According to the one-way impact isolating device for the satellite, an impact-isolated object can be borne reliably and safely, the mounting rigidity, strength, position accuracy and the like of the impact-isolated object are guaranteed, meanwhile, impact transmission can be effectively isolated in one certain direction, it can be reliably guaranteed that the impact-isolated object has a sufficiently small impact environment, and the purpose that the impact-isolated object or an impact sensitive component can operate safely in an on-orbit mode for working is achieved.
Owner:SHANGHAI SATELLITE ENG INST

Gelatinization sintering treatment method of waste incineration fly ash and waste treatment method

The invention discloses a gelatinization sintering treatment method of waste incineration fly ash. The gelatinization sintering treatment method of waste incineration fly ash comprises the following steps: S1, performing sintering pretreatment on the waste incineration fly ash so as to form solidified fly ash; S2, conveying the solidified fly ash into an incinerator used for incinerating household wastes, and performing sintering treatment on the solidified fly ash so as to generate accumulated waste incineration fly ash. According to the gelatinization sintering treatment method of waste incineration fly ash, the incinerator used in waste incineration is utilized for sintering, the waste incineration fly ash and the household wastes are conveyed into the incinerator together for combustion, sintering conditions and equipment are not needed to be additionally set, technical problems are not needed to be additionally overcome, the cost is low, the flow path is short, the operation is convenient, and the method is convenient in construction and large-range engineering application; in addition, when the waste incineration fly ash is subjected to a gelatinization sintering process, after heavy metals and dioxin in the waste incineration fly ash are subjected to high-temperature sintering, slags in the incinerator have stable physical properties, cannot pollute environment and can be recycled.
Owner:李先旺
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