35results about How to "Guarantee normal production" patented technology

The utility model provides a coal bucket anti-blocking structure of a coal conveying system, which relates to the field of coal conveying systems and comprises a coal bucket body, the coal bucket body is divided into a plurality of inclined sections and vertical sections which are alternately arranged, and a vibration component is mounted on the outer side of the coal bucket body. The vibration assembly comprises a plurality of vibration balls, a gear ring driving the vibration balls to rotate and a plurality of vibration plates used for transmitting vibration, the vibration balls make contact with the vibration plates in the rotating process, and the vibration plates extend to the inner side of the coal bucket body. The friction force superposition effect caused by the continuous conical section can be reduced, so that the blocking phenomenon of coal particles is effectively reduced, the vibration plate is knocked by the vibration ball, the vibration plate and the coal bucket body are continuously vibrated, retention of the coal particles on the inner wall of the coal bucket due to extrusion friction can be effectively reduced, blocking is prevented, and the service life of the coal bucket is prolonged. And continuous and coherent coal conveying operation is ensured.

This invention discloses a method for controlling sulfides in sulfur-containing gear steel, belonging to the field of metallurgical technology, including converter, LF refining, RH refining, and continuous casting processes. Converter process: molten steel tapping temperature 1630±20℃, carbon-oxygen product controlled below 0.0020; LF refining process: aluminum content in molten steel controlled at 0.035-0.045%, LF slag composition adjusted to R: 1.5-2.5, FeO+MnO: 1.0-2.0%; RH refining process: ferrotitanium added in one step to adjust the composition appropriately; Continuous casting process: argon-blown stopper rods and submerged entry nozzles are used for continuous casting, and 150-200 kg of low-basicity tundish covering agent is added to the tundish. The sulfur-containing gear steel produced by this invention can be continuously drawn for more than 10 heats, and the level of Class A inclusions can be stably controlled at A coarse ≤ 1.0 grade and A fine ≤ 1.5 grade, with a pass rate of over 99.9%.

The utility model relates to the technical field of plastic films, in particular to an embossing transmission structure of plastic film processing equipment, and aims to solve the problem that a conveying belt is difficult to clean in the plastic film processing process. The embossing transmission structure comprises a machine shell and a cleaning mechanism, and a hydraulic rod is fixedly mounted on the upper surface of the machine shell; the left side face and the right side face of the machine shell are each provided with a through opening. According to the conveying belt cleaning device, water can be supplemented to the water box through the water inlet pipe, so that the water can be sprayed on the conveying belt through the spray heads to flush the conveying belt, the conveying belt can be secondarily cleaned through the brush plate after flushing, and residual water on the conveying belt can be absorbed through the sponge plate; and through cooperation of a heating rod, an air blower, an air outlet pipe and a flow dividing box, hot air can be blown to the conveying belt, residual water on the surface of the conveying belt is dried, dust can be prevented from being attached to the conveying belt, it is guaranteed that the film is kept clean, and normal production of the plastic film can be guaranteed.

The invention discloses a novel vacuum pneumatic solid material conveying and desilting robot which comprises a robot vehicle body and a walking crawler belt, the robot vehicle body advances and retreats through rotation of the walking crawler belt, and a driving wheel and a driven wheel which are rotationally connected with the robot vehicle body are installed in the walking crawler belt. According to the novel vacuum pneumatic solid material conveying and dredging robot, novel structural design is adopted, the automation and intelligence degree is high, unmanned entering is achieved, remote control is achieved, operation means are diverse, efficiency is high, the effect is good, shutdown, production stopping and operation stopping are not needed, production, life and operation are guaranteed to the maximum extent, unmanned entering is achieved in the dangerous environment, and personal safety is avoided. Complete equipment in the whole process does not need complex operation preparation and safety protection, and can be used after being started. The equipment can be reused, the comprehensive cost is greatly reduced, the operation process is completed in a closed loop, dust raising and pollutant throwing are avoided, a small amount of manpower is needed for ecological environmental protection, and the single-person single-shift capacity remote control is greatly improved.

The utility model discloses a positioning device for steel-plastic grating production, which comprises an I-shaped grating strip winding roller and is characterized in that a positioning structure is arranged on the I-shaped grating strip winding roller; the utility model relates to the technical field of steel-plastic grating production devices, an I-shaped grating strip winding roller wound with steel-plastic grating strips is movably sleeved on a half-threaded column, and then an anti-falling component is sleeved on the half-threaded column, so that the I-shaped grating strip winding roller is prevented from being separated from the half-threaded column, the position limitation of the steel-plastic grating strips is realized, and the production efficiency of the steel-plastic grating is improved. Then the sleeve frame is pulled to enable the movable column to move in the groove hole until the sleeve frame is separated from the top of the stand column, and under the effect of the contraction force of the spring, the pressing roller is pressed on the outer ring of the steel-plastic grating strip on the I-shaped grating strip winding roller, so that the steel-plastic grating strip is prevented from loosening on the I-shaped grating strip winding roller, orderly paying-off of the steel-plastic grating strip is guaranteed, and the service life of the steel-plastic grating strip is prolonged. The phenomenon that the steel-plastic grille is tangled with other equipment or parts due to looseness is avoided, and subsequent normal production of the steel-plastic grille is guaranteed.

This utility model relates to the technical field of paper cup production, and in particular to a paper sheet separation device for paper cup production. It can continuously and stably separate paper sheets one by one, preventing double or multiple sheets from occurring during the paper feeding process and ensuring normal paper cup production. The device includes a base installed on a paper cup preparation machine, a storage tank, and a separation mechanism. The storage tank is fixedly connected to the top of the base. Two sets of silicone paddles are fixedly connected to the upper part of the inner walls at both ends of the storage tank. Rotary shafts are rotatably installed on both sides inside the storage tank, with the shafts positioned between the two sets of silicone paddles. The rear end of a transmission screw is fixedly connected to the output end of a servo motor. A slider is screwed onto the transmission screw, and the slider is slidably mounted on an L-shaped bracket. An electric telescopic rod is fixedly connected to the bottom end of the slider, and a vacuum suction cup is fixedly connected to the output end of the electric telescopic rod. An air connector is connected to the vacuum suction cup.

The utility model provides a novel furnace door inner lining composite block, including refractory precast, four corner positions all are provided with support column, embedded screw rod, each support column all is embeddedly arranged, shielding piece, heat insulation filling body, fill and set between shielding piece and refractory precast, refractory precast as basic structure, can bear high temperature environment in coking process, support column plays the supporting role to shielding piece and forms the accommodation space, make shielding piece and refractory precast form certain space for setting filling body, filling body can select the material of excellent heat insulation performance, effectively reduce the heat dissipation of furnace door, reduce the reduction amplitude of furnace end temperature, guarantee the uniformity of coke oven temperature, reduce the coke amount of furnace end, simultaneously, the setting of embedded screw rod has facilitated the installation and fixed of shielding piece, improved the stability of overall structure, reduced the deformation of furnace door caused by furnace door inner lining damage, reduced the maintenance frequency of furnace door, safeguarded normal production of coke oven, reduced the economic loss of coking enterprise.

The utility model relates to the sealing field discloses a self-locking double-seal end cover, it includes adjusting pressure plate, gland, oil seal baffle, small oil seal, big oil seal, locking nut, locking back cap, gland bolt and oil seal baffle bolt, the end face of adjusting pressure plate is pasted with bearing outer ring end face, the oil seal seat for installing small oil seal is equipped in the front side of the center hole of adjusting pressure plate near bearing, the locking nut and locking back cap are installed in the front side of the center hole of gland, the oil seal seat for installing big oil seal is equipped in the back side, the locking nut and locking back cap press against adjusting pressure plate to make it press the bearing outer ring tightly, the outer peripheral circle of oil seal baffle is fixed on the gland through oil seal baffle bolt, the utility model makes adjusting pressure plate press the bearing outer ring through double nuts, prevents the phenomenon of shafting, avoids the shaft journal fracture, guarantees normal production of crude oil, prevents lubricating oil leakage through setting two skeleton seals, reduces lubricating oil filling cost, and protects the environment.

This utility model relates to the technical field of braking structures, and discloses a braking mechanism for a feeding mechanism, including a drive mechanism and a braking structure. The drive mechanism is slidably mounted on a base plate, and a limit block is connected to the top of the drive mechanism. The braking structure includes an elastic element and a brake block. The bottom of the elastic element is connected to the brake mounting plate, and the top of the elastic element is connected to the brake block. The top of the brake block can slide along the top of the limit block. When the feeding disc needs to stop, the drive mechanism slides towards the end away from the braking structure, and the elastic element pulls down the brake block to restrict the rotation of the driven gear. The beneficial effect of this utility model is that, during braking, the drive mechanism slides towards the end away from the braking structure, the limit block disengages from the brake block, and the elastic element resets, pulling the brake block down and inserting it into the tooth groove of the driven gear, eliminating the influence of inertial force on the movement of the feeding disc, thereby improving the accuracy of the feeding disc's stopping position.

This invention discloses a self-propelled feeding machine with autonomous material suction, relating to the field of new energy material preparation. It includes a self-propelled chassis, a robotic arm, a control cabinet, a material suction and feeding device, and a weighing device. The self-propelled chassis includes casters, a battery unit, etc.; the robotic arm includes a base, a rotating seat, and a first arm section, etc.; the material suction and feeding device includes a suction nozzle, a suction hose, a fan, etc.; the weighing device includes a weighing bin, valves, and a weighing sensor, etc. This invention integrates material suction and feeding, improving feeding efficiency; it combines the extension and retraction of the robotic arm with swing rotation, allowing the suction nozzle to uniformly suction material from all directions of the bag; it achieves automatic positioning, clamping the bag during suction to prevent slippage, and supporting the bag as the suction nozzle extends and retracts downwards, preventing the bag from clogging the suction port; it completes the self-propelled chassis's self-propelled movement and automatic material suction, weighing, and feeding, achieving precise metering and feeding.

This invention discloses a method and system for unloading trucks using a tippler during rainy season operations. The method includes: activating the rainy season operation mode switch on the main control panel, causing the tippler to enter rainy season operation mode; acquiring a trigger signal from a proximity sensor located on the platform in front of the tippler's curved track; sending a trigger signal to the PLC control system when the truck bed is detected to have rotated to a set angle for drainage, and controlling the truck bed to drain water for a set duration based on the received trigger signal; after drainage is completed, controlling the tippler to continue rotating and acquiring trigger signals from the proximity sensor; and controlling the tippler to sequentially perform preset unloading operations when the truck beds are detected to have rotated to preset angles. This invention effectively reduces water accumulation in the truck bed, lowers the moisture content of the material to be unloaded, and enables normal unloading operations in rainy season environments.

The embodiment of the application provides a kind of battery tab detection method and computer readable storage medium, comprising the following steps: obtaining battery image;The region of the battery image is positioned, and the tab region image is determined;Using connected region method, the tab region image is detected, and the folding state of tab is obtained.According to the technical solution of the embodiment of the application, after tab smoothing, the folding condition of tab during core production can be known in time by image acquisition, region positioning and connected region method, if tab folding is found, the technician can stop the core production process in time and solve tab folding problem in time, so that subsequent normal production and battery yield can be guaranteed.

The utility model discloses an oilfield well washing fluid filtering device, including filter box, be provided with filter plate in the filter box, the lower extreme of filter plate is connected with the bottom wall in filter box, the filter plate is in front -back direction and is in proper order for the front end, the angle, the back end, the front end is connected with the inner front wall of filter box, the back end is connected with the inner side wall of filter box, the filter plate is set up filter hole between the front end, the angle, the part of filter box in the angle is the liquid inlet chamber, the part of filter box outside the angle is the liquid outlet chamber. The utility model can prevent sundries from entering the well, improve well washing quality, ensure that oil -water well can long -term normal production, can improve well repairing quality when being used for well repairing operation, avoid sundries and block the formation, prevent oil layer pollution.

The utility model relates to the technical field of foaming cushion production, and discloses a mould opening mechanism of a foaming cushion forming mould, which comprises a base, a support, a concave mould and a convex mould, the support is fixedly arranged at the top end of the base, a moving groove is arranged at the top end of the base, a support plate is fixedly arranged at the bottom end of the concave mould, a bottom plate is arranged below the support plate, and the convex mould is arranged below the bottom plate. An electric cylinder is fixedly installed at the top end of the bottom plate, the supporting plate is fixedly installed at the output end of the electric cylinder, an electric sliding rail is fixedly installed in a groove formed in the bottom end of the inner wall of the moving groove, a connecting sliding plate is fixedly installed at the bottom end of the bottom plate, and the connecting sliding plate is slidably connected with the electric sliding rail. The mold can be opened in two modes, normal mold opening of the mold is guaranteed, normal production of the foaming cushion is guaranteed, and reliability and stability of production are greatly improved.

The invention belongs to the technical field of blast furnace hot blast stove safety control, and particularly relates to a blast furnace hot blast stove safety optimization method based on multi-valve cooperation, which comprises the following steps: (1) safety optimization of a gas combustion valve: 1, double valves are closed in place for interlocking protection; 2, the temperature between the valves is monitored in real time; and 3, key valve signal interlocking upgrading. (2) safety optimization and opening in-place signal dual detection of the hot blast valve; (3) safety optimization of the cold air valve and a cold air valve opening in-place signal dual verification structure; (4) multi-valve cooperative interlocking logic upgrading; and (5) test and verification: 1, signal distortion simulation test; 2, temperature alarm test; and 3, carrying out a delay verification test. According to the method, by means of double-signal series verification, temperature threshold alarm setting, delay verification and multi-link interlocking protection, misoperation caused by signal distortion is completely eradicated, immediate response is achieved, blast furnace wind interruption and slag pouring caused by false in-place opening signals are prevented, normal production is ensured, and economic losses are avoided.

This utility model discloses a roller-hearth type protective atmosphere bright solution furnace with balanced internal gas pressure. The gas pressure at both ends of the rapid cooling section is basically balanced, and the gas pressure in the gas exchange section and the slow cooling section is also basically balanced, effectively isolating the furnace from the external oxidizing atmosphere. The roller-hearth type protective atmosphere bright solution furnace of this utility model includes, along the material flow direction, interconnected gas exchange section, heating section, rapid cooling section, and slow cooling section. The rapid cooling section has a cooling chamber and an air inlet pipe connected to the cooling chamber. The rapid cooling section also has a gas cooling circulation device for extracting process gas from the cooling chamber for cooling and pumping the cooled low-temperature process gas back into the air inlet pipe. A process gas inlet is provided between the heating section and the rapid cooling section for pumping low-temperature process gas into the chambers of the heating section and the rapid cooling section. The air inlet pipe and the process gas inlet are located at the inlet and outlet ends of the rapid cooling section, respectively.

The application relates to the technical field of cigarette equipment, and discloses a multifunctional telescopic plate for a filter rod launcher, which comprises a material warehouse and a partition plate, a plurality of partition plates are installed at equal intervals at the bottom of the material warehouse, and a launching unit is formed between adjacent partition plates; the telescopic plate is symmetrically installed in the material warehouse and comprises a No. 1 plate, a No. 2 plate, a No. 3 plate and a magnet plate; the No. 1 plate is hingedly connected in the material warehouse, the No. 2 plate is slidably connected in the No. 1 plate, a first limiting assembly for avoiding sliding off is installed on the No. 2 plate, the No. 3 plate is slidably connected in the No. 2 plate, a second limiting assembly for avoiding sliding off is installed on the No. 3 plate, and the magnet plate is hingedly connected at the end of the No. 3 plate. According to the scheme, workers do not need to manually add filter rods into empty material warehouses, the filter rod filling efficiency can be improved, and normal production of a production line can be ensured.

This invention proposes an online configuration method, system, device, and medium for a clock debouncing device in a switch. The method includes: when the switch is initially powered on, the BMC sends a power-on signal to the CPU; the BMC reads the model number of the clock debouncing device; based on the model number, it is determined whether the debouncing device needs to be reconfigured; if so, the clock debouncing device is reconfigured via the BMC, and the PHY chip is de-reset via the CPU; if not, the PHY chip is directly de-reset via the CPU; during switch operation, the BMC detects the preset signal status of the CPU and determines whether a hot restart or cold restart operation has occurred; when a cold restart operation occurs, the clock debouncing device is reconfigured. This invention enables the BMC chip to reconfigure the firmware of the clock debouncing device chip as needed during the initial power-on and restart processes of the switch.

The utility model belongs to the field of fastener machining, and particularly relates to a screw extrusion hole buffering mechanism which comprises a three-axis driving mechanism and a workpiece storage rack. The three-axis driving mechanism is arranged in front of the boring machine, and a mechanical clamp is arranged at the execution end of the three-axis driving mechanism. The workpiece storage rack is arranged between the hole boring machine and the hole extruding machine, and the three-axis driving mechanism controls the mechanical clamp to transfer workpieces from the hole boring machine to the workpiece storage rack. According to the screw hole extrusion buffering mechanism provided by the invention, when boring or hole extrusion process equipment is paused or fault maintenance occurs, a blocking mechanism on a boring machine or a hole extrusion machine is started to stop materials, a three-axis driving mechanism controls a mechanical clamp to work to grab workpieces and stack the workpieces to a buffering workpiece storage rack, and when material accumulation exists in the boring or hole extrusion process due to faults, the mechanical clamp is started to stop the materials; manual feeding and discharging are replaced, the manual burden is relieved, and safety is improved. When a production line lacks materials, workpieces can be supplemented, and normal production of subsequent procedures is guaranteed without waiting.

The application relates to the technical field of power grid data processing, and discloses a regional power consumption prediction method; the regional power consumption prediction method comprises the following steps: S1, first period data collection; S2, period characteristic classification determination; S3, characteristic classification prediction determination; S4, second period data collection; S5, period characteristic classification updating; S6, characteristic classification prediction updating; the application collects the data of the power consumption in a short period in the region, carries out characteristic classification according to the preliminary collection, completes prediction after the classification is finished, and thus can carry out preliminary power consumption prediction and subsequent power consumption operation and maintenance management; in the subsequent power consumption process, the power consumption data is collected again according to a certain period, characteristic updating and prediction updating are carried out, the operation and maintenance strategy can be continuously adjusted according to the real-time change of the power consumption in the region, the real-time performance of the operation and maintenance strategy is ensured, and the power supply of the region brings lower operation cost.

The utility model belongs to the technical field of diesel oil anti-wear agent production, and particularly relates to an anti-blocking system for a diesel oil anti-wear agent production process, which comprises a first stirring kettle, a centrifugal machine, a second stirring kettle, a first centrifugal pump and a third stirring kettle which are connected in sequence, an outlet of the third stirring kettle is respectively connected with a second centrifugal pump and a third centrifugal pump through pipelines, and the second centrifugal pump and the third centrifugal pump are connected in parallel; a water outlet is formed in the top of the centrifugal pump, and the water outlet is conveyed to the first conveying pipe with the jacket heat tracing function, the second conveying pipe with the jacket heat tracing function and the third conveying pipe with the jacket heat tracing function through pipelines. A hot water phase (80-90 DEG C) generated after washing of the coarse anti-wear agent in the stirring kettle is used for heat tracing of a discharge pipeline of palmitic acid and sewage containing the palmitic acid, the pipeline is prevented from being blocked by solidification and precipitation of the palmitic acid, and the method can be suitable for continuous production of unsaturated fatty acid and unsaturated fatty acid ester type anti-wear agents.

The invention relates to the technical field of ferrous metallurgy, discloses a real-time monitoring method and system for the quality of molten steel in a metallurgical container and a storage medium, and aims to solve the problem that the quality of the molten steel is difficult to accurately monitor in real time in the metallurgical container in the prior art. According to the method, the weight of molten iron, scrap steel and alloy is weighed, the content of elements (such as Ni, Co and Cu) with the oxygen binding capacity lower than that of iron is detected, physical blowing loss calculation in the converter blowing process is combined, the element mass conservation principle is utilized, and the mass of the molten steel in a metallurgical container is calculated in real time. According to the invention, the problem of measurement errors caused by insufficient stability and slag interference of traditional weighing equipment under extreme working conditions is solved, and the precision and real-time performance of molten steel quality monitoring are improved.

The application discloses a steel belt with a multistage energy absorption mechanism and a yielding beam stress deformation monitoring system and monitoring method thereof. The steel belt with a two-stage energy absorption mechanism comprises an upper layer steel belt and a lower layer steel belt connected with a pressure sensor through a steel column. The longitudinal section of the upper layer steel belt and the lower layer steel belt is in a trapezoidal shape, which comprises an inclined side part and a middle part. A tray is installed on the upper layer steel belt, and the geometric center position of the tray is provided with an anchor rod hole. The application can form a three-stage energy absorption steel belt through the cooperation of the steel belt bolt and the steel belt body, and the pressure sensor and the distance sensor can record the stress deformation condition of the steel belt in real time. The display alarm can give an early warning to the steel belt with excessive compression in the roadway, so as to prevent safety accidents. The system is used in cooperation with the anchor rod and cable, can monitor the stress deformation of the steel belt, make the form of the steel belt digital, and meet the development direction of the intelligent mine.

The utility model discloses a paper die cutting technical field's a kind of defective product paper automatic rejection die cutting device, to solve the problem of inconvenient rejection of defective product generated in the paper die cutting process in prior art. It includes paper feeding mechanism, cutting mechanism and material receiving mechanism, at least one group of sensors is provided between paper feeding mechanism and cutting mechanism, both sides of material receiving mechanism are equipped with mounting bracket, feed shaft is rotatably arranged between two mounting brackets, adhesive tape roll is installed on feed shaft, the outside of adhesive tape roll is adhesive surface, feed shaft can move in the vertical direction of mounting bracket, material receiving shaft is also installed between two mounting brackets, and material receiving roll is installed on material receiving shaft;The utility model is used to detect the position of defective product in paper die cutting work, and automatically rejects corresponding paper according to the position of defective product paper, since adaptive automation equipment, convenient operation, can avoid secondary damage, with excellent application prospect.

The present application belongs to the field of coal coking, and particularly relates to a method for realizing quick use of coke oven chimney, characterized in that the method comprises an injection gas source, a pressure relief valve, a jet unit and a connecting gas path, the injection gas source is a container with a certain volume for storing high-pressure gas or a facility capable of providing a stable gas source, the injection gas source is connected with the jet unit through the connecting gas path, and the jet unit is uniformly arranged in the circumferential direction at the root of the coke oven chimney. The pressure relief valve is a normally closed valve, which is opened in linkage with the coke oven flue total gate or is opened alone after receiving an emergency opening instruction. The method has the advantages that: the coke oven chimney device does not need to be considered, no additional energy consumption is needed, coke oven flue gas waste heat can be fully recovered, the utmost energy efficiency utilization of the coke oven production process is realized, the normal production of the coke oven does not need to be ensured by maintaining the normal operation of the coke oven desulfurization and denitrification system through fuel consumption, the operation cost can be significantly reduced, and the method is operated at nearly zero cost without continuous supply of high-pressure gas.

The invention provides a flow blocking method based on a composite phase change flow blocking device. The method is characterized by comprising the following steps: (1) manufacturing a composite phase-change flow blocking device, (2) quickly inserting the manufactured composite phase-change flow blocking device into tundish molten steel until the tundish molten steel reaches an upper nozzle of the tundish, (3) melting an outer-layer iron sheet and iron nail particles within 0-2 seconds, and suddenly reducing the temperature of a molten steel interface to below 1500 DEG C to form a primary solidification shell with the thickness being greater than or equal to 5 mm; and (4) the aluminum particles, the iron nail particles and dissolved oxygen in the molten steel react within 2-5 seconds to generate a composite phase with the melting point being 2054 DEG C and a composite phase with the melting point being 2100 DEG C, the composite phases are conveyed to a water gap through forced eddy currents generated by the molten steel, second-level solidification layer generation and plugging are achieved, the plugging stopping time is shortened to 5.8 + / -0.5 seconds, and the accident rate is controlled to be 0.01 times per ten thousand tons or below on the premise that high-pulling-speed production is guaranteed.

The application discloses a high-voltage lithium cobaltate composite material and a preparation method thereof, and the preparation method comprises the following steps: uniformly mixing tricobalt tetroxide, sodium carbonate and nano zirconium dioxide to obtain mixed raw materials; after sintering and crushing, the mixed raw materials are used to obtain tricobalt tetroxide powder coated with sodium zirconate; the tricobalt tetroxide powder coated with sodium zirconate is uniformly mixed with lithium carbonate, and then calcination is carried out; air is introduced during the calcination; and after the calcination is completed, the obtained material is crushed to obtain the target product. According to the application, the zirconium dioxide is reacted with the sodium carbonate to form a sodium zirconate coating layer on the surface of the tricobalt tetroxide, the sodium zirconate can absorb carbon dioxide, the contact between the material and oxygen in the reaction is indirectly improved, so that the oxygen is not needed to be additionally introduced, and the production cost of the material is reduced; meanwhile, the doping of the sodium zirconate can improve the cycle performance and the rate performance of the material, and the lithium cobaltate composite material with stable performance in a high-voltage environment is prepared.

The invention belongs to the technical field of insect resistance research, and discloses a method for enhancing insect resistance of poplar by using a leaf aging related gene NAC109, which is characterized by comprising the following steps: (1) obtaining a CDS sequence of a PtNAC109 gene: (2) designing a guide gRNA sequence; (3) constructing a targeted PtNAC109 gene editing carrier plasmid; (4) preparing a genetic transformation agrobacterium infection solution; (5) infecting the populus tomentosa plants with agrobacterium; (6) screening calluses with resistance; (7) inducing, prolonging and rooting resistant buds; (8) verifying a gene editing effect by utilizing a molecular biology means; and (9) obtaining a poplar gene editing new germplasm with enhanced insect resistance.

The utility model belongs to the technical field of equipment engineering, and particularly relates to a special tool for pulling and installing a generator rotor. The special tool comprises an upper-layer steel frame platform and a lower-layer steel frame base, wherein four symmetrically distributed hydraulic jacks are arranged between the upper-layer steel frame platform and the lower-layer steel frame base. A drawing hanging lug support is vertically arranged at the midpoint of one end of the upper-layer steel frame platform, a drawing hanging lug is vertically fixed to the upper portion of the drawing hanging lug support, and the center of the drawing hanging lug and the center of the rotor are located on the same horizontal line. The two side faces of the upper-layer steel frame platform are each fixedly provided with a pull hanging lug support, and the clockwise included angle between each pull hanging lug support and the horizontal plane ranges from 30 degrees to 45 degrees. And the other end of the pulling hanging lug bracket is vertically and fixedly provided with a pulling hanging lug, and the center of the pulling hanging lug and the center of the rotor are positioned on the same horizontal line. By utilizing the special tool, the generator rotor can be safely, reliably and quickly pulled and assembled, the maintenance quality is ensured, and the working efficiency is improved.