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32results about How to "Improve safe operation rate" patented technology

Efficient and energy-saving type high temperature mortar for cement rotary kilns, and preparation method thereof

The present invention discloses an efficient and energy-saving type high temperature mortar for cement rotary kilns, wherein the components in the formula comprise, by weight, 40-55 parts of fused mullite, 6-15 parts of corundum fine powder, 2-10 parts of active alumina micro-powder, 2-10 parts of andalusite fine powder, 3-6 parts of kyanite fine powder, 0.5-3 parts of Y2O3, 0.5-2 parts of carboxymethyl cellulose, 0.1-1 part of sodium tripolyphosphate, 0.1-1 part of sodium hexametaphosphate, and 20-35 parts of a silicon-aluminum sol. The present invention further relates to a preparation method of the high temperature mortar. According to the present invention, the efficient compounding of the silicon-aluminum sol is used, and the mullite is easily generated during the high temperature sintering process, such that the structure is compact, the performance is stable, the adhesion strength is continuously improved along with the temperature increase, and the high temperature resistance and the thermal shock resistance are good; and the high adhesion strength is provided at the low temperature, and the adhesion strength is greater than the brick strength, such that the sufficient adhesion strength is provide so as to ensure no generation of bricking lining distortion, brick falling and other phenomena during the drying on the cement rotary kiln.
Owner:PINGXIANG KEXING FURNACE MATERIAL

Installation device and method for OPGW terminal reservation cable of transformer substation

The invention discloses an installation device for an OPGW terminal reservation cable of a transformer substation. According to the installation device, the problems of inter-turn contact discharge and electric corrosion strand breakage caused by inter-turn induced electricity of an OPGW wound in an OPGW terminal reservation disc of an extra-high voltage, super-high voltage or high voltage transformer substation are completely solved; the safe operating rate of the OPGW terminal reservation cable of the extra-high voltage, super-high voltage or high voltage transformer substation is improved; a hidden danger of electric grid optical cable backbone line equipment is eliminated; the safe operating rate of an electric grid is increased; maintenance work at an optical cable is reduced; the operation and maintenance cost of an electrical network enterprise is greatly reduced; moreover, site construction is convenient and simple and is easy to realize. The installation device comprises a waterproof coating material, an insulating protective sleeve and thermal shrinkage treatment equipment; the tail end of the OPGW terminal reservation cable is coated with the waterproof coating material or wound with an insulating adhesive tape; the insulating protective sleeve is arranged in the part which is coated with the waterproof coating material in a sleeving manner, and is subjected to thermal shrinkage treatment through the thermal shrinkage treatment equipment, so that the air in the insulating protective sleeve is eliminated. The invention further provides a method.
Owner:STATE GRID CORP OF CHINA +1

Quick support composite insulator hardware for insulated overhead line and operation method of quick support composite insulator hardware

The invention relates to the field of power line insulators, in particular to quick support composite insulator hardware for an insulated overhead line and an operation method of the quick support composite insulator hardware. The quick support composite insulator hardware is characterized in that the top of the hardware body is provided with an arc press plate, one end of the arc press plate is articulated with one side of the hardware body, the other end of the arc press plate is articulated with one end of a spring lockset, the other side of the hardware body, corresponding to the spring lockset, is provided with a hinge slot, when the arc press plate is at a locking state, the arc press plate and the top of the hardware body form a lead fixing hole, and the inner wall of the hole is provided with a rubber layer. Compared to the prior art, the quick support composite insulator hardware disclosed by the invention has the beneficial effects: (1) reliable connection and fastening between the insulated overhead line and the support insulator are conveniently achieved without being influenced by wind power and air humidity, and the safe operation rate of the electric power insulated overhead line is improved; (2) the integrated built-in spring lockset is adopted, so that the insulated overhead line is mounted without bind and operating bolts, the construction speed is increased without being influenced by the technical levels of constructors, and the fixing quality is better.
Owner:ANSHAN POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER COMPANY +1

Tower crane operation virtual simulation monitoring system provided with head tracking functions

The invention discloses a tower crane operation virtual simulation monitoring system provided with head tracking functions. The tower crane operation virtual simulation monitoring system provided with head tracking functions is capable of increasing the probability of tower crane safety operation, changing a traditional monitoring method based on onsite monitoring by commanders and informing of operators by the commanders, and improving the efficiency and safety of tower crane operation process. The tower crane operation virtual simulation monitoring system comprises a tower crane operation virtual simulation software system, a head tracking interactive system, and an environment information acquisition system; the tower crane operation virtual simulation software system comprises an environment rendering module and a tower crane scene simulation module; the environment rendering module is connected with a display; the head tracking interactive system comprises an operator, a head posture change acquisition module, and a head posture detection module; detection results of the head posture detection module are sent to the environment rendering module; and the environment information acquisition system comprises a multisensor system, and an environment information acquisition server; the environment information acquisition server is connected with the tower crane scene simulation module; and the environment information acquisition system is used for transforming real dynamic change scene into virtual dynamic change scene.
Owner:由国峰

A method and device for monitoring the availability of relay protection services in a power communication network

ActiveCN110854824BAvoid big negative side effectsEfficient analysis and evaluationEmergency protective circuit arrangementsTelecommunicationsTopology information
The present disclosure provides a method and device for monitoring the availability of relay protection services in a power communication network. Wherein, the monitoring method includes obtaining the relay protection topology information of the power communication network from the power communication network database and storing it in the relay protection data. The relay protection topology information of the power communication network includes all relay Protect the service channel and each site on each relay protection service channel, as well as the communication equipment and communication power contained in each site; receive the relay protection service availability monitoring command and respond, and retrieve the current monitoring from the relay protection data The attribute information of the equipment at both ends associated with the two channels associated with the electrical protection business, the number of power supply equipment sets in the sites at both ends, and the paths passed, determine whether the dual equipment, dual power supply, and dual routing conditions are met at the same time, and if so, judge The current relay protection service is available; otherwise, it is determined that the current relay protection service is not available.
Owner:INFORMATION COMM COMPANY STATE GRID SHANDONG ELECTRIC POWER +1

Electric power optical cable fiber fusion sleeve and manufacturing method thereof

The invention provides an electric power optical cable fiber fusion sleeve, which solves the problem of interruption of optical fiber transmission due to optical fiber coating failure caused by heating combustion and deformation of the fiber fusion sleeve occurring in the operation process after optical fiber splicing in the strong electromagnetic field environment of power system substations, power transmission lines and power plants, and improves safety operation rate of an electric fiber backbone network. The electric power optical cable fiber fusion sleeve comprises a nonmetal non-magneticreinforced rib and an integrated protective tube coat. The protective tube coat comprises an optical fiber protection tube cavity and a rib placing cavity. The optical fiber protection tube cavity isa cavity, the two ends of which are opened. A welding fiber core is inserted into the optical fiber protection tube cavity and is then, welded in the optical fiber protection tube cavity. The rib placing cavity is arranged above the optical fiber protection tube cavity, and is a cavity, one end of which is closed and the other end of which has a rib placing port. The nonmetal non-magnetic reinforced rib is inserted into the rib placing cavity from the rib placing port, and then, is pressed and packaged in the rib placing port. The electric power optical cable fiber fusion sleeve is used for optical cable fiber splicing in the strong electromagnetic field environment of ultra-high-voltage, super-high-voltage and high-voltage substations, power transmission lines, power plants and industrial chemical, ship and medical industry equipment. The invention also provides a manufacturing method thereof.
Owner:STATE GRID HUBEI ELECTRIC POWER CO XIAOGAN POWER SUPPLY CO

Integrated waste water innocent treatment device

The invention discloses an integrated waste water innocent treatment device which comprises a treatment bin (1). The treatment bin (1) is separated into an upper layer and a lower layer, the lower layer is separated into a water storage bin (2) and a sterilization bin (3), the water storage bin (2) and the sterilization bin (3) are abreast, and the upper layer is separated into an adjusting bin (4), a biochemistry bin (5) and a sedimentation bin (6), wherein the adjusting bin (4), the biochemistry bin (5) and the sedimentation bin (6) are abreast. A gas pump (7) and a water pump (8) are fixed to the upper portion of the treatment bin (1), the upper portion of the adjusting bin (4) is communicated with the biochemistry bin (5), the biochemistry bin (5) is communicated with the sedimentation bin (6) through a siphon (9), and an opening, located on the biochemistry bin (5) side, of the siphon (9) is formed in the bottom of the biochemistry bin (5). The sedimentation bin (6) is connected with the lower water storage bin (2) through a communicating pipe (10), and the water storage bin (2) is connected with the sterilization bin (3) through a second communicating pipe (11). The adjusting bin (4) and the sterilization bin (3) are connected with a water inlet pipe (12) and a water outlet pipe (13) respectively. The integrated waste water innocent treatment device is compact and simple in structure, few in external supporting facilities, high in safe operation rate, low in operation cost and automatic and continuous in operation.
Owner:京津冀钢铁联盟(迁安)协同创新研究院有限公司

An emergency avoidance device and control method for an orchard monorail

The invention discloses an urgent danger prevention device and a control method for an orchard monorail vehicle. The urgent danger prevention device comprises a vehicle-mounted subsystem, a rail subsystem and a monitoring server side, wherein the rail subsystem comprises a plurality of rail nodes used for feeding back rail information to the monorail vehicle; the vehicle-mounted subsystem comprises an information processing unit and vehicle-mounted nodes; the monitoring server side is used for receiving data uploaded by the rail nodes, and sending the data through the Internet to a remote computer for analyzing and processing. The method comprises the step of acquiring rail data acquired by the rail nodes, wheel data acquired by the vehicle-mounted nodes, and vehicle body data acquired by the information processing unit at present. Through calculation of the acquired data, whether the monorail vehicle is in danger or not can be judged; when the result shows that the monorail vehicle is in danger, emergency braking is carried out to prevent danger, and the current state of the monorail vehicle is sent to the rail nodes. The urgent danger prevention device and the control method have the advantage that the operating safety of the orchard monorail vehicle on a rail can be improved to the utmost extent according to the operating state of the orchard monorail vehicle on the rail.
Owner:SOUTH CHINA AGRI UNIV

Roller grinding and grinding method of main drive grinding roller friction drive grinding disc

ActiveCN105435912BReduce manufacturing costEliminate manufacturing bottlenecksGrain treatmentsManufacturing cost reductionCoupling
The invention provides a roller mill with a main drive grinding roller driving a grinding disc in a friction manner and a grinding method of the roller mill. The roller mill comprises a grinding roller device, a grinding roller drive device, a universal coupling, a pressurizing device, a hinge supporting device, the grinding disc and a grinding disc supporting device, wherein a part, which extends out of a hinge support bearing block, of the rear end of a roller shaft of the grinding roller device is flexibly connected with the grinding roller drive device through the universal coupling; roller shells of the grinding roller device are uniformly distributed above the grinding disc in the peripheral direction and are in contact with materials to be ground on a grinding disc lining plate; hydraulic pressure of the pressurizing device is transmitted to the grinding disc and the materials on the grinding disc through a pressurizing bearing block, a pressurizing bearing pack, the roller shaft and the roller shells; and torque of the main drive roller shaft is transmitted to the grinding disc through a friction force of the materials and drives the grinding disc to rotate around the axis of the grinding disc. Compared with an existing roller mill technology, the roller mill remarkably reduces manufacturing cost and operation cost; energy-saving grinding is implemented; and meanwhile, the manufacturing bottleneck of a special speed reducer for a large roller mill is eliminated.
Owner:NANJING JULI INTELLIGENT MFG TECH INST CO LTD

Device and method for controlling operation mode of segmented insulated line

The invention discloses a device and a method for controlling the operation mode of a segmented insulated line. The device comprises a remote control device, an in-station portal frame tower, N continuous towers and 2N+1 switches, and N is a non-negative integer. According to the invention, the optical fibers of each section of line are connected through the middle of the OPGW line, so that optical fiber communication of the OPGW in the whole process is ensured; 4-10 kilometers of the OPGW sectional insulation line is a section, 5-10 towers are arranged in each section of line span, the head end of each section of line is grounded, and the tail end of each section of line is insulated; each section of OPGW line is connected with an optical fiber of a connection tower, and the optical fiberconnection adopts wavelength division multiplexing to establish an information communication channel of a control switch; and whole-course continuous tower information acquired by the OPGW segmentedinsulated line is transmitted to the remote control device. Therefore, the safe operation rate of a power grid transmission line can be promoted, equipment defect accidents such as OPGW and overhead ground wire strand breakage, transmission tower collapse and hardware damage caused by icing are reduced, the operation efficiency is improved, the power grid operation and inspection cost is reduced,and the safe production of a power grid is promoted.
Owner:STATE GRID HUBEI ELECTRIC POWER CO XIAOGAN POWER SUPPLY CO +1

High-efficiency and energy-saving high-temperature cement for cement rotary kiln and preparation method thereof

The present invention discloses an efficient and energy-saving type high temperature mortar for cement rotary kilns, wherein the components in the formula comprise, by weight, 40-55 parts of fused mullite, 6-15 parts of corundum fine powder, 2-10 parts of active alumina micro-powder, 2-10 parts of andalusite fine powder, 3-6 parts of kyanite fine powder, 0.5-3 parts of Y2O3, 0.5-2 parts of carboxymethyl cellulose, 0.1-1 part of sodium tripolyphosphate, 0.1-1 part of sodium hexametaphosphate, and 20-35 parts of a silicon-aluminum sol. The present invention further relates to a preparation method of the high temperature mortar. According to the present invention, the efficient compounding of the silicon-aluminum sol is used, and the mullite is easily generated during the high temperature sintering process, such that the structure is compact, the performance is stable, the adhesion strength is continuously improved along with the temperature increase, and the high temperature resistance and the thermal shock resistance are good; and the high adhesion strength is provided at the low temperature, and the adhesion strength is greater than the brick strength, such that the sufficient adhesion strength is provide so as to ensure no generation of bricking lining distortion, brick falling and other phenomena during the drying on the cement rotary kiln.
Owner:PINGXIANG KEXING FURNACE MATERIAL

A device and method for installing reserved cables for OPGW terminals in substations

This application discloses an installation device for reserved cables for OPGW terminals in substations, which completely solves the inter-turn contact discharge and electric erosion caused by the OPGW inter-turn induction electricity wound in the OPGW terminal reserved disks of ultra-high voltage, ultra-high voltage, and high-voltage substations. It improves the safe operation rate of cables reserved for OPGW optical cable terminals in UHV, EHV, and HV substations, eliminates the hidden dangers of optical cable backbone line equipment in the power grid, promotes the safe operation rate of the power grid, and reduces the lack of maintenance work for optical cables. The operation and maintenance cost of power grid enterprises is reduced, and the on-site construction is convenient, simple and easy to implement. It includes waterproof glue, insulating protective sleeve, and heat shrink treatment equipment. Apply waterproof glue or wind insulating tape at the end of the OPGW terminal reserved cable, put the insulating protective sleeve into the part coated with waterproof glue, and pass The heat-shrinking treatment equipment performs heat-shrinking treatment on the insulating protective cover, thereby eliminating the air in the insulating protective cover. Methods are also provided.
Owner:STATE GRID CORP OF CHINA +1
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