40results about How to "Improve quality reliability" patented technology

The present application relates to wastewater purification reuse system technical field, more specifically, it relates to a kind of wastewater purification reuse system for heat-sensitive paint production, comprising: data acquisition module;Wastewater pH adjustment controller;Based on the comparison result of the pH value of heat-sensitive paint wastewater and set target pH value, generate pH value adjustment coefficient;Based on pH value adjustment coefficient, generate alkaline solution adding instruction;Liquid alkaline adjusting device, with wastewater pH adjustment controller communication connection, receive alkaline solution adding instruction;Add alkaline solution to the blending pool;Receive the pH value and temperature of the liquid of blending completion sent by data acquisition module;Based on the comparison result of the pH value of blending completion liquid and set target pH value, generate pH value adjustment coefficient;Based on pH value adjustment coefficient, generate liquid temperature regulation instruction;Blending liquid pH adjustment mechanism, with blending liquid pH adjustment controller communication connection, for the liquid temperature regulation of blending completion liquid in blending pool.

The invention provides an intelligent generator control method and device based on a dynamic load and electronic equipment, and belongs to the field of power grid fluctuation suppression, the method is applied to an energy management unit in a gas power generation system, and the gas power generation system further comprises a gas generator set, an energy storage converter, a super capacitor and a CT mutual inductor. The method comprises the following steps: counting power change times and a power change value of a load within a preset time length based on electrical parameters of a power grid side load; selecting a working mode as a constant power factor mode, a constant reactive power mode or an automatic adjustment mode based on the power change frequency and the power change value; and based on the operation state parameters of the super capacitor, controlling the total output power of the gas generator set in the three adjusting modes. According to the invention, stable power supply of the load can be maintained through adjustment of the super capacitor and the energy storage converter, the adjustment frequency of the gas generator set is reduced, and the power generation efficiency of the gas generator set is improved.

The utility model provides a reinforcing rib profiling die which comprises an upper die assembly, a lower die assembly and a lower die assembly, the upper die assembly comprises an upper die mounting plate, and the lower surface of the upper die mounting plate is connected with at least two upper pressing dies; the lower die assembly comprises a lower die base, the top of the lower die base is connected with a lower die mounting plate, the upper surface of the lower die mounting plate is connected with lower pressing dies in one-to-one correspondence with the upper pressing dies, and the lower pressing dies are provided with first positioning pins for positioning a workpiece to be machined; the guide assembly comprises a guide sleeve connected to one of the upper die assembly and the lower die assembly, and a guide column connected to the other one of the upper die assembly and the lower die assembly. Through precise matching of the male die and the female die, a pressed part has the advantages of being high in size precision and high in quality reliability, and the production efficiency is improved.

The utility model discloses drying equipment for purifying a rubber accelerator, and particularly relates to the field of rubber accelerators, the drying equipment comprises a conveying box, the upper surface of the conveying box is fixedly connected with a supporting cover, the upper surface of the supporting cover is fixedly communicated with a communicating pipe, the top end of the communicating pipe is fixedly communicated with a conveying cylinder, and the conveying cylinder is fixedly communicated with the conveying box. A spiral feeding piece is arranged on one side of the conveying barrel, an arc-shaped electric heating plate is fixedly installed on the inner top wall of the conveying barrel, an electric heating flow guide plate is fixedly installed on the inner wall of the supporting cover, a plurality of infrared radiators are fixedly installed on the inner wall of the supporting cover, and an electric driving roller is installed on the inner wall of the conveying box; the outer surface of the electric driving roller is in transmission connection with a conveying belt, each infrared radiator is located above the conveying belt, and an air heater is fixedly embedded in one side face of the supporting cover. According to the continuous drying device, continuous drying can be carried out, drying interruption caused by frequent feeding and discharging is not needed, and the drying efficiency and the unit time handling capacity are improved.

The invention discloses a harmonic suppression method and system under a high background harmonic condition, and the method comprises the steps: carrying out the wavelet transformation of an input power grid voltage signal, and extracting the amplitude information of each harmonic in real time; dynamically determining a target harmonic set which needs to be suppressed at present through a preset threshold judgment mechanism according to the extracted amplitude information of each harmonic; for each harmonic in the target harmonic set, synchronously executing harmonic suppression and phase compensation operation; sending the signal subjected to harmonic suppression and phase compensation into a phase-locked loop to obtain a power grid synchronous phase; the system provided by the invention comprises an extraction module, a determination module, a compensation module and a suppression module, and provides a highly purified input signal for the phase-locked loop, so that the phase-locked loop can still maintain rapid and overshoot-free high-precision phase locking under serious harmonic pollution; and the operation stability and the electric energy quality of the grid-connected inverter in a complex power grid environment are remarkably improved.

The utility model discloses a kind of efficient brushless hollow cup DC motor stator, including the stator core made of high saturation soft magnetic material, the middle part of the stator core is equipped with core inner hole, the inside of the core inner hole is equipped with cup type winding, and the inside of the core inner hole is attached with insulating film, the cup type winding is by several sheet hexagonal winding column and is rolled by coiling machine, the cup type winding is fixed on the inner wall of core inner hole by high temperature epoxy adhesive layer;The utility model not only guarantees the electrical insulation between stator core and winding cup, but also reduces the inconvenience caused by artificial paste insulating film, improves the quality reliability of stator, shortens manufacturing cycle, improves work efficiency;Relative to filling process, manufacturing cycle is shortened by 2 / 3.

The present application relates to the technical field of building construction, in particular to a medical spliced antibacterial medical board construction method, comprising the following steps: A, wall surface quality acceptance; B, line marking; C, drilling and inserting screw sleeve; D, installing keel; E, installing fastener; F, installing antibacterial medical board; G, sealing glue; The construction method has the advantages of simple construction process, less construction procedure, high quality reliability and the like; The construction speed can be greatly improved by using the construction method, and the construction period is shortened; Further, the antibacterial medical board adopts a "dry hanging" fixing mode, which ensures the safety of the system; Compared with the phenolic resin board construction, the fireproof grade, wear resistance, formaldehyde content, moisture resistance, stain resistance, scratch resistance and other performances are significantly improved, so that the construction process is more environmentally friendly and safe.

The invention relates to the technical field of reclosing switch production equipment, in particular to a reclosing switch and automatic production equipment thereof.The reclosing switch comprises a machine tool base, a double-row synchronous conveying belt used for driving a reclosing switch body to transfer among multiple stations is arranged on the machine tool base, and multiple machining stations are arranged on the machine tool base; the machining station comprises an energy storage spring assembling station and a detection station. Through cooperation of the correcting inclined block, the first conveying belt and the second conveying belt, the posture of the energy storage spring can be automatically regulated, the orientation of a spring hanging hole is corrected, manual intervention and adjustment are not needed, and the problems that in the prior art, manual adjustment is low in efficiency and large in error are effectively solved; and meanwhile, synchronous scheduling of the energy storage spring and the reclosing switch body is realized in cooperation with the double-row synchronous conveying belt, and the procedure connection efficiency is greatly improved.

This application provides a generator intelligent control method, device, and electronic equipment based on dynamic load, belonging to the field of grid fluctuation suppression. The method is applied to the energy management unit in a gas-fired power generation system, which also includes a gas-fired generator set, an energy storage converter, a supercapacitor, and a current transformer (CT). The method includes: statistically analyzing the number and value of power changes within a preset time period based on the electrical parameters of the grid-side load; selecting a constant power factor mode, a constant reactive power mode, or an automatic adjustment mode based on the number and value of power changes; and controlling the total output power of the gas-fired generator set under these three adjustment modes based on the operating status parameters of the supercapacitor. This application can maintain stable power supply to the load through the adjustment of the supercapacitor and the energy storage converter, reducing the adjustment frequency of the gas-fired generator set and improving its power generation efficiency.

This invention relates to a method, apparatus, equipment, and medium for predicting deformation during the assembly of diesel engine connecting rods, belonging to the field of mechanical assembly technology. The method acquires multi-dimensional assembly data during the assembly process of marine diesel engine connecting rods. Based on assembly process knowledge, the multi-dimensional assembly data is weighted to obtain a weighted input vector set. A pre-trained Bayesian network model is used to infer the deformation prediction probability distribution from the weighted input vector set. Statistical analysis is performed on the deformation prediction probability distribution to obtain deformation trend characteristics and distribution dispersion characteristics. Key deformation risk factors are identified based on these characteristics. A diesel engine connecting rod assembly deformation prediction report is generated based on the deformation prediction probability distribution, deformation trend characteristics, distribution dispersion characteristics, and key deformation risk factors. This invention improves the assembly quality and product reliability of marine diesel engine connecting rods.

The invention belongs to the technical field of ink-jet printing and discloses an industrial digital ink-jet printing robot which comprises a base plate, a mechanical arm is fixedly connected to the top face of the base plate, a secondary ink box is arranged on the end face of the mechanical arm, an ink-jet mechanism is arranged below the secondary ink box, and a protection mechanism is arranged on the outer side of the ink-jet mechanism. The ink jet mechanism comprises a fixing ring, the fixing ring is fixedly connected to the surface of the mechanical arm, an ink jet pipe is fixedly connected to the interior of the fixing ring, a first baffle is fixedly connected to the inner wall of the ink jet pipe, and a bottom plate is fixedly connected to the inner wall of the first baffle. Intermittent ink output of the device is achieved, intermittent ink jetting can enable an ink path to keep slight circulation, the ink concentration is uniform, the problems of different depths, chromatic aberration and the like in printing are avoided, the stability of long-time printing is guaranteed, and the printing quality and the equipment reliability are improved.

A kind of automobile engine factory inspection test method, belong to engine power test technical field.The method will engine be installed to test bench, carry out appearance inspection, fluorescent agent addition, combustion chamber endoscopy and cylinder pressure detection in turn, then complete running-in test according to four-stage gradient working condition, monitor ECU operation data and listen to abnormal sound during running-in period, detect leakage using fluorescent flashlight after running-in, can be factory shipped after all detection is qualified.The present application effectively solves the problem that production line cannot detect by standard, complete bench test process, realizes comprehensive, efficient, stable engine factory inspection, and effectively improves engine factory shipment quality and detection reliability.

The invention provides a variable-pipe-diameter equal-wall-thickness pipe blank preparation and forming process which is characterized in that liquid expansion pre-forming, solution treatment and liquid expansion final forming are adopted for a contracted pipe blank, so that the phenomenon of nonuniform product wall thickness caused by nonuniform material flow can be eliminated on the basis of fully ensuring the forming precision; and the product quality and the long-term reliability are improved. Compared with the prior art, the process has the advantages that the heating times are reduced, the processing difficulty and the production cost are greatly reduced, and the processing requirements of high-performance complex parts can be met.

The utility model discloses a battery. The battery comprises a battery core assembly and an aluminum plastic film, the aluminum plastic film is provided with two accommodating grooves, the accommodating grooves are used for assembling battery cell components, the two accommodating grooves are symmetric about a symmetric axis and are arranged at intervals, each accommodating groove comprises a first end and a second end which are oppositely arranged, the first end is closer to the symmetric axis relative to the second end, and the depths of the accommodating grooves are gradually increased from the first end to the second end; the depth of the first end is smaller than that of the second end, and the battery cell assembly is assembled in the containing groove of the aluminum plastic film. The aluminum-plastic film can improve the fitting degree of the aluminum-plastic film and the battery cell so as to improve the packaging quality.

This invention relates to a method for preparing the nonhydrated crystalline form of reboxil monosuccinate. The method includes adding reboxil and succinic acid simultaneously or separately to two mixed solvents in an alcohol / alcohol or alcohol / alkane mixture, stirring to induce crystallization, filtering, and drying. The method of this invention features mild reaction conditions, convenient operation, low energy consumption, and is suitable for large-scale production. The nonhydrated reboxil monosuccinate obtained by the method of this invention has a uniform particle size and concentrated particle distribution, which helps to ensure the uniformity of formulation content and the stability of dissolution behavior, thereby ensuring drug quality.

The invention discloses an unmanned aerial vehicle aerial survey image real-time interpretation and ground object labeling method and system, and relates to the field of real-time interpretation and ground object labeling, and the system comprises an acquisition positioning module, a visual interference module, a spatio-temporal evolution module and a determination processing module. The method comprises the following steps: determining a pose calculation bumping event and an occurrence time window thereof by combining clustering and correlation analysis of a characteristic curve, identifying a causal interference domain causing bumping by analyzing a dense motion vector field and a characteristic loss region between images, reversely projecting the causal interference domain to a physical space, determining a risk analysis region, and determining a risk analysis result. Comprehensively calculating multiple risk factors in the region, and generating a drift risk spatio-temporal evolution prediction map; according to the method, the space-time alignment and the unified mapping are carried out, the comprehensive annotation risk index of each grid is decoded, and a hierarchical response mechanism is started, so that the final effectiveness judgment and processing of the surface feature annotation are obtained, and the space credibility and the time sequence availability of the annotation result are fundamentally guaranteed.

The utility model discloses a prick reading instrument, and provides corresponding instrument equipment for realizing automatic operation of a skin prick test. According to the technical scheme, the prick reader comprises a case, an arm lifting cushion, an image acquisition mechanism and an industrial control computer, an opening is formed in the front end of the case and used for placing an arm into the case, the arm lifting cushion is arranged in a cavity in the front of the case, the image acquisition mechanism is arranged above the arm lifting cushion, and the image acquisition mechanism is connected with the industrial control computer. The image acquisition mechanism comprises a camera for acquiring a skin pricking area and a light source.

The application relates to a welding mark detection device and belongs to the technical field of battery manufacturing. The welding mark detection device comprises a pressing device, a welding mark detection device and an upper lifting device. The pressing device comprises a pressing conveying mechanism and a pressing assembly. The pressing conveying mechanism is used for conveying a battery monomer with a cup holder. The pressing assembly is used for pressing the battery monomer. The welding mark detection device comprises a detection conveying mechanism and a visual detection mechanism. The detection conveying mechanism is used for conveying the battery monomer with the cup holder. The visual detection mechanism is configured to detect whether the welding mark of the bottom wall of the battery monomer is qualified. The upper lifting device comprises an upper lifting conveying mechanism and an upper lifting assembly. The upper lifting conveying mechanism is used for conveying the battery monomer with the cup holder. The upper lifting assembly is used for lifting the battery monomer. The welding mark detection device has high detection precision, thereby improving the quality management level of the battery monomer and improving the quality reliability of the battery monomer.

The invention discloses railway station building steel structure welding equipment and a welding method, and relates to the technical field of steel structure welding. The railway station building steel structure welding equipment comprises a bottom plate, supporting pieces used for placing a cross beam are symmetrically arranged on the bottom plate, and a positioning piece capable of ascending and descending is arranged between the two supporting pieces; the positioning part is used for positioning and placing a vertical web member and an inclined web member which are welded between the two cross beams, a clamping assembly is arranged on the side wall of the supporting part in a penetrating mode, a linkage assembly is installed between the clamping assembly and the positioning part, a driving assembly capable of driving the cross beams to move is arranged on the supporting part, and the driving assembly is connected with the positioning part through an L-shaped frame. And in the descending process of the positioning piece, the L-shaped frame drives the driving assembly to descend and press the top of the cross beam. Automatic positioning, synchronous clamping and continuous welding of components are achieved, and the operation efficiency is greatly improved; tight attachment of welding surfaces is ensured through mechanical linkage, and the welding seam quality is remarkably improved; welding fume source purification is integrated, and the working environment is thoroughly improved.

The present application relates to removable partial denture technical field, especially in a kind of removable partial denture paper design single to the method and system of electronic design single, method includes: obtaining the image of paper design single of removable partial denture designed for target user, according to image each tooth is mapped to electronic design single, from image obtaining local image containing support, clasp, base and all teeth;Local image is identified, at least one tooth position to be installed artificial tooth is determined and is marked in the first intermediate electronic design single, and the contour of support, the contour of clasp and the contour of base are mapped to the first intermediate electronic design single, design connector and draw in the second intermediate electronic design single, optimization is carried out by artificial modification mode, and the electronic design single of removable partial denture is obtained.Can quickly and accurately determine the electronic design single of removable partial denture.

The invention discloses a component quality detection system for an assembly type steel structure, and relates to the technical field of engineering quality detection, and the system comprises a digital twinborn body construction module which is used for generating a first detection report through simulation analysis based on a digital twinborn body; the data acquisition module is used for guiding the detection equipment to perform entity detection based on the first detection report and acquiring actually measured data of the component; the analysis and diagnosis module is used for comparing the measured data with a theoretical prediction value to generate deviation data and diagnosing the root of a quality problem; the prognosis prediction module is used for predicting the performance degradation path and the remaining service life of the component under multiple damage coupling by using an artificial intelligence model; and the feedback optimization module is used for outputting an instruction for optimizing a subsequent component design, a manufacturing process or a detection strategy based on the diagnosis result, the performance degradation path and the remaining service life. On the basis, the technical problem that an existing quality detection method is insufficient in accuracy and perspective is solved.

The application relates to a low-voltage flexible DC power quality optimization method and system based on big data, and relates to the technical field of power control, and comprises the following steps: acquiring a DC bus voltage fluctuation sequence and an output current distortion rate sequence; calculating a light-load oscillation risk coefficient according to the distortion rate and the load rate, and calculating a heavy-load voltage drop depth according to the integral of the deviation of the voltage from the rated voltage; when the light-load risk exceeds a first threshold value, extracting a damping ratio decay trajectory of the same frequency from historical big data, and calculating a dynamic compensation coefficient; when the heavy-load drop exceeds a second threshold value, matching a recovery time constant according to the ratio of the current change rate to the voltage recovery speed, and generating a correction amount; nonlinearly fusing the compensation coefficient and the correction amount to obtain an adaptive virtual impedance, replacing a fixed impedance value and issuing the adaptive virtual impedance to a pulse width modulator. The application solves the technical problems that the traditional method cannot simultaneously consider light-load oscillation and heavy-load drop, cannot adapt to working condition changes in real time, and is prone to causing system instability.

The utility model relates to the related technical field of pipe fitting processing, in particular to bending equipment for pipe fitting processing, which comprises a workbench, a connecting seat is connected above the workbench, a lower die is connected above the connecting seat, a buffer device is arranged between the workbench and the lower die, and the buffer device is connected with the lower die. And pressure conveying mechanisms are arranged on the surfaces of the connecting seat and the bracket. According to the bending equipment for pipe fitting machining, due to the arrangement of the buffer device, many defects caused by rigid contact of traditional equipment are overcome, the machining quality and the equipment reliability are remarkably improved, after bending is completed, the elastic reset force of the spring can further push the lower die to slowly rise, return stroke inertial impact is reduced, and the machining efficiency is improved. The surface quality and the size precision of the pipe fitting are protected, the service life of the die and the service life of equipment are prolonged, the safety risk of operators is reduced, and reliable guarantee is provided for efficient and stable pipe fitting bending operation.

This application relates to the field of optical fiber communication network technology and discloses a communication network optimization method based on optical fiber sensing and the importance of carried services. The method includes: periodically injecting optical time-domain reflectometry (OTDR) sensing signals into all spare fiber cores; calculating the current loss and crosstalk values ​​of each spare fiber core based on the backscattered signals; monitoring and analyzing the service flows carried on the operating fiber cores; determining the current service importance level of each service flow according to a power communication service type-level mapping table; when an operating fiber core fails, selecting and removing target fiber cores from the set of available spare fiber cores in descending order of service importance level according to fiber core selection rules, forming a mapping relationship; generating and sending port switching control commands based on the mapping relationship to migrate services and updating the network routing table. This application achieves refined perception of spare resources and intelligent protection of differentiated service needs during communication network fault recovery.

The invention relates to the technical field of aviation equipment, in particular to a method for bonding, curing and pressurizing upper and lower skins, ribs and walls of a wing by using paste glue, an upper clamping plate, a lower clamping plate, an upper wing surface, a lower wing surface, a wall and a front edge are included, a positioning component is connected between the front edge and the wall, and the positioning component is used for guiding the front edge and the wall to generate elastic deformation in a specified direction. A groove is formed in the side, close to the wall, of the upper clamping plate, and an air bag is installed in the groove. The problems of glue layer extrusion, non-uniform thickness, residual stress, weak glue joint and the like caused by non-uniform pressure transmission can be effectively solved, and the connection quality and the structural reliability are remarkably improved.

This invention discloses a spot welding device for processing household appliance parts, belonging to the technical field of electric welding devices. It includes a fixed frame, a worktable fixed on the frame, a pressure unit fixed above the worktable, two welding heads connected to the worktable and pressure unit respectively, a sleeve slidably connected to the welding head, a pressure chamber between the sleeve and the welding head, a piston disposed within the pressure chamber, and a telescopic component connected to the sleeve. This invention utilizes the hydraulic linkage of the piston within the sleeve when the welding head is pressed down to drive a gauge block to automatically measure the thickness difference of the overlapping plates. This, in turn, controls an adjustment unit to synchronously change the heat conduction efficiency of the heat sinks on both sides, accelerating heat dissipation on the thicker plate side and slowing down heat dissipation on the thinner plate side. This balances the cooling rate and shrinkage on both sides during the solidification stage of the weld nugget, effectively reducing thermal stress concentration and warping deformation around the weld point, lowering the risk of micro-cracks caused by rapid cooling in the thin plate, and improving the appearance quality and structural reliability of the weld points on the sheet metal casing of household appliances.

The invention relates to the technical field of glove box quality detection, in particular to automobile glove box detection equipment and an automobile glove box detection method.The detection equipment comprises a workbench, a moulding bed, a first testing device, a second testing device and a visual scanning device.The visual scanning device is suitable for recognizing identification information and quality information of a glove box; the quality information comprises surface defect information, position information of the lock rod and neglected loading information of the part. The device has the beneficial effects that the device can complete comprehensive detection of glove box identification, appearance assembly quality, operating force and mechanism functions in one-time clamping, so that the detection efficiency and consistency are remarkably improved, subjective errors of manual inspection are reduced, unqualified products can be quickly screened at the tail end of a production line, and the production efficiency is improved. Therefore, the overall quality reliability and the production automation level of the automotive trim part are improved.

The invention discloses a water conservancy pipeline groove machining device. Belongs to the technical field of pipeline machining. According to the technical key points, the device comprises a carrying table, the top of the carrying table is connected with a lantern ring through a lifting mechanism, an opening of the lantern ring is distributed in the left-right direction, the rear side edge of the top of the carrying table is fixedly connected with a pushing handle, and the front side edge of the top of the carrying table is provided with a control part. A movable operation structure is formed by the universal wheels at the bottom of the carrying table and the pushing handle at the top, the water conservancy pipeline to be machined can be flexibly transferred to the storage position of the water conservancy pipeline to be machined, the pipeline does not need to be carried to fixed beveling equipment, especially for large-diameter and large-weight pipelines, dependence on large hoisting equipment can be avoided, and the working efficiency is improved. And meanwhile, by means of the lifting mechanism, the height position of the lantern ring can be accurately adjusted, the device is suitable for pipelines with different placement heights, the flexibility and construction efficiency of groove machining are remarkably improved, and the device is suitable for complex construction scenes such as narrow sites.

The invention provides electrified railway dropper pre-assembling equipment, and relates to the technical field of railway overhead line system construction equipment, and the electrified railway dropper pre-assembling equipment comprises a rack, and a visual identification system which is arranged on the rack and is used for identifying the spatial positions and postures of a bearing lock and a cable and outputting a guide signal; the industrial robot is in communication connection with the visual identification system and is used for grabbing and adjusting the poses of the force bearing lock and the cable according to the guide signal; at least two conductive paste dispensing stations, each of which comprises a dispensing device used for injecting conductive paste into the suspension ring of the bearing lock; a cable conveying and cutting device is arranged beside the conductive paste dispensing station and is used for conveying a wire rod and cutting the wire rod according to a set length; and a crimping device is arranged beside the cutting device, and the industrial robot feeds the cable into the crimping device. According to the invention, the dropper pre-assembling efficiency and consistency are improved, the labor cost and the labor intensity are reduced, and the operation safety is guaranteed through the electronic fence and the monitoring system.

The utility model relates to the technical field of ferrous metallurgy RH vacuum refining, particularly discloses a silicon steel production oriented RH refining device based on double vacuum pump cooperation and a direct connection feeding system, and mainly solves the problems that the RH treatment period of silicon steel production is mismatched with the continuous casting production rhythm and the alloy feeding efficiency is bottleneck. According to the scheme, a second set of vacuum pump system is additionally arranged on the basis of traditional three-vehicle five-position arrangement, two sets of independent vacuum pumping systems are formed, vacuum treatment can be conducted on two treatment stations at the same time, and the comprehensive treatment period of the RH link is shortened. Meanwhile, each station is provided with an independent ferrosilicon feeding system which comprises a high-capacity overhead bunker, a weighing hopper and a vacuum charging bucket directly connected with an articulated chute, so that the ferrosilicon feeding time is shortened. According to the three-vehicle five-position RH vacuum refining device, the vacuum treatment efficiency and the feeding process of the three-vehicle five-position RH vacuum refining device are synergistically optimized, and efficient matching of the RH refining period and the continuous casting rhythm during silicon steel production is achieved.