47results about How to "Accurate quality control" patented technology

The invention discloses a PCB (Printed Circuit Board) defect identification method used in an automatic PCB sorting process, and relates to the technical field of defect identification, a visibility coefficient Kjxs is calculated based on the definition of a pattern formed by photoresist, an etching influence coefficient Syxs is calculated in combination with degree data after etching, and the etching influence coefficient Syxs is input into a defect evaluation model, so that the defect of the PCB is evaluated. Accurate evaluation of the defects is realized through a deep learning technology, and the method enables identification of the PCB defects to be more intelligent and efficient, and reduces manual intervention. On the basis of comparative analysis of the defect score Qpf and the preset evaluation threshold value Q, the system can automatically judge the defect condition of the PCB to be etched and adopt a corresponding automatic sorting mechanism, the intelligent automatic sorting mechanism can ensure that the qualified PCB enters the subsequent technological process, and the defective PCB is removed in time, so that the production efficiency is improved, and the production cost is reduced. And the risk that unqualified products flow into subsequent production links is reduced.

The invention discloses a grinding workpiece edge shape detection method and system based on machine learning, and the method comprises the steps: obtaining an original image of a grinding workpiece, and carrying out the preliminary image preprocessing; denoising the image and enhancing edge information by combining image filtering and mathematical morphology image processing; based on a second-order differential operator, edge detection is carried out in combination with the morphological gradient, and a workpiece edge contour is obtained; performing feature extraction on the image by using a convolutional neural network, automatically learning workpiece edge features, and constructing and training an edge detection model; acquiring a workpiece image in real time, inputting the workpiece image into the edge detection model for detection, and dynamically correcting the model; and S6, outputting a final edge detection result. According to the invention, by combining image preprocessing, composite image filtering, second-order differential operator and morphological gradient edge detection and feature extraction and model construction of the convolutional neural network, high-precision and robust detection of the edge of the grinding workpiece is realized.

The invention discloses a method for accurately measuring the content of soluble suspended matters in a sodium aluminate solution, which comprises the following steps: (1) taking two parts of sodium aluminate solution in an aluminum oxide production process as two parts of samples, and keeping the temperature, the two parts of sodium aluminate solution being equal in amount; (2) filtering one sample to obtain filtrate and suspended matters; (3) adding ultrapure water into the other part of the sample, diluting to obtain a diluent, heating the diluent to 60 DEG C, stirring while heating until the solution is clarified, and then filtering to obtain filtrate and solid residues; (4) further comprising the following steps: a, drying the suspended matters in the step (2), weighing to obtain the total amount of the suspended matters, drying the solid residues in the step (3), and weighing to obtain the mass of insoluble suspended matters; calculating the content of the soluble suspended matters by adopting the following formula: the mass of the soluble suspended matters = the total amount of the suspended matters-the mass of the insoluble suspended matters; according to the method, the content of the soluble suspended matters in the sodium aluminate solution is accurately measured.

The invention relates to a nano grating pose calibration system based on a laser interferometer, which comprises a light path system and a displacement table driving system, the displacement table driving system comprises a four-axis displacement table, a nano grating support for mounting a nano grating and the laser interferometer are arranged on a mounting table surface of the four-axis displacement table, and the laser interferometer is arranged on the mounting table surface of the four-axis displacement table. The three-axis direction angles of the nano grating are sequentially corrected through the four-axis displacement table, wherein the three-axis direction angles comprise free rotation in three degrees of freedom of pitching, rolling and deflection and linear displacement in the axis direction of the grating. The measurement value of the laser interferometer is used as the correction feedback of the grating attitude, the measurement value of the grating displacement measurement system is compared with the measurement value, the adjustment direction of each axis of the four-axis displacement table is judged, finally, the four-axis displacement table is driven for many times, the nano grating support is adjusted to the ideal position, and the problem of the nano grating attitude error is solved.

The invention relates to the technical field of refractory materials, in particular to a preparation method of a self-curing tundish dry material, which comprises the following steps of: mixing, forming, drying, sintering, cooling and grinding raw materials of the tundish dry material, and mixing the obtained tundish dry material bulk material and a gel material according to a preset proportion; the tundish mold is filled with the fireproof bulk materials obtained through mixing, layered filling is adopted, vibration and degassing treatment are conducted on each layer of fireproof bulk materials to obtain a degassed fireproof solid material, curing treatment is conducted on the degassed fireproof solid material to obtain a cured fireproof layer, and the curing strength of the cured fireproof layer is detected to obtain the actual curing strength; and for the condition that the actual curing strength cannot meet the standard curing strength requirement, the standard curing strength requirement is met by adjusting vibration parameters or adjusting grinding power. By adjusting the grinding power and the vibration parameters, the curing strength of the self-curing tundish dry material meets the curing requirement.

The invention provides a method for promoting growth of dysprosium scandate single crystals, which comprises the following steps: preparing raw materials: uniformly mixing the raw materials, and putting into a crucible; setting growth conditions: putting the crucible filled with the raw materials into a high-temperature furnace, and setting temperature gradient, pressure and growth speed; growing by a lifting method: in the growth process, slowly lifting the seed crystal from the molten raw material at a constant speed through a lifting device, and controlling the cooling rate of the crystal to promote the growth of the single crystal; real-time weighing monitoring: in the upward lifting process, carrying out real-time weighing monitoring on the growing single crystal by using a high-precision weighing device, and adjusting growth parameters to maintain the stability and uniformity of the quality of the single crystal; compared with the prior art, the method has the following beneficial effects that by controlling the growth speed and the temperature gradient, defects and internal stress caused by thermal stress in the crystal growth process can be effectively reduced, and the integrity and the mechanical strength of the crystal are improved.

The invention discloses an all-quartz multi-component Raman signal online detection module based on multi-laser additive and subtractive manufacturing. The all-quartz multi-component Raman signal online detection module comprises a node-free negative curvature hollow-core optical fiber with side micropores, a multimode optical fiber, a single-mode optical fiber plated with a ceramic film, a semicircular micro-channel, a quartz slurry packaging layer and a quartz fixing base, a micro-scale micropore is processed on the side surface of a node-free negative-curvature hollow fiber by utilizing picosecond laser, a multimode fiber, the node-free negative-curvature hollow fiber with the side micropore and a single-mode fiber are welded into a whole, the single-mode fiber is ground into a slice by utilizing an optical fiber grinding technology, and a ceramic membrane is deposited on the end surface of the slice single-mode fiber. Picosecond laser is used for scanning the quartz fixing base layer by layer so as to process a semicircular micro-channel for placing the sensor, and CO2 laser is used for scanning, depositing and curing the quartz slurry packaging layer layer by layer so as to package the sensor. According to the invention, the to-be-detected substance is injected into the all-quartz sensor, so that on-line detection of multi-component Raman signals can be realized in high electromagnetic interference environments such as electric power and the like.

According to the technical scheme, the quantitative manual filling machine is characterized in that the quantitative manual filling machine comprises a base, a supporting frame is arranged at the upper end of the base, a feeding hopper is arranged above the supporting frame, a quantitative barrel is arranged at the lower end of the feeding hopper, the lower end of the feeding hopper is communicated with a material conveying pipe, and the material conveying pipe is communicated with the quantitative barrel. The other end of the conveying pipe is communicated with the side wall of the bottom end of the quantifying cylinder, a quantifying mechanism is arranged in the quantifying cylinder, a discharging pipe is arranged at the lower end of the quantifying cylinder, and the discharging pipe is communicated with the quantifying cylinder through a stretching mechanism.

The invention discloses a hot-rolled plate structure toughness prediction method and system combined with an impact energy change curve, and belongs to the technical field of metal material structure performance evaluation.The method comprises the steps that an impact test is conducted on a hot-rolled plate sample, and an impact force-displacement curve and an energy absorption-time curve are collected in real time; preprocessing the impact force-displacement curve and the energy absorption-time curve, and extracting characteristic parameters; acquiring hardness distribution data of the hot-rolled plate sample, acquiring hardness gradient data by using the hardness distribution data, and taking the hardness gradient data as a correction factor of the curve characteristics; constructing a structure toughness prediction model based on the characteristic parameters and the correction factors, and predicting the toughness grade and the structure state of the hot-rolled plate; and outputting the toughness grade and the structure state of the hot-rolled plate. According to the method, the limitation that traditional metallographic detection consumes too long time and an impact test only provides a single value is solved, double evaluation results can be obtained within 30 seconds after the impact test, and the method is suitable for rapid online quality monitoring and process adjustment of hot rolling production.

The invention relates to an ultra-large component electric arc additive system with surface detection and repair functions and a method. The system comprises a laser three-dimensional contour scanning system, a system control unit and an additive manufacturing and remelting repairing platform. The laser three-dimensional contour scanning system is used for compiling a robot detection path and simulating a track, and issuing an instruction to carry out laser contour three-dimensional scanning on the additive component after no error is reported; the system control unit is internally provided with an additive structural part original model, technological parameters of electric arc additive are controlled according to the additive structural part original model, data preprocessing and defect recognition are conducted on scanning data obtained by the laser three-dimensional contour scanning system, and positions and parameters of additive manufacturing and remelting repairing are controlled according to a defect recognition result. According to the method, the problems of insufficient surface precision, incomplete fusion defects and deformation of formed parts during arc additive manufacturing of large components are solved, so that the precision of additive forming is guaranteed, metallurgical defects are eliminated, and the additive quality is improved.

The invention discloses a method for rolling 170 * 190 mm bars through a cogging mill pass system, and relates to the technical field of cogging mills. According to the method for rolling the bar with the size of 170 * 190 mm through a cogging mill pass system, a cogging mill rolling system comprises a large manipulator opening degree, a small manipulator opening degree and cogging mill rolling reduction, and a 430 * 350 mm raw material section is rolled into a section with the size of 170 * 190 mm through nine passes; turning steel in front of a first pass machine, wherein the K1 rolling reduction is 75-95 mm; turning steel after a second pass machine, wherein the rolling reduction of K1 is 50-70mm; turning steel in front of a third pass machine, wherein the rolling reduction of K2 is 60-80 mm; turning steel after a fourth pass machine, wherein the rolling reduction of K2 is 70-90 mm; turning steel in front of the machine in the fifth pass, wherein the rolling reduction of K3 is 55-75 mm; the steel is not turned over in the sixth pass, and the rolling reduction of K3 is 50-70 mm; turning steel in front of the machine in the seventh pass, wherein the rolling reduction of K4 is 55-75 mm; steel turning is avoided in the eighth pass, and the rolling reduction of K3 is 35-55 mm; and turning steel in front of the ninth pass machine, wherein the rolling reduction of K5 is 50-70 mm.

The clamping and pulling type liquid packaging machine comprises a machine body, a supporting frame is arranged at the top of the machine body, a liquid storage barrel is arranged at the top of the supporting frame, a metering and discharging mechanism is arranged at the top of the machine body, a film supply mechanism is arranged on the outer wall of the right side of the machine body, a cavity is formed in the machine body, a clamping and pulling mechanism is arranged in the cavity, and a pulling belt mechanism is arranged in the machine body. A waste edge collecting mechanism is arranged at the lower end of the rear side of the machine body; through mutual cooperation of the film supply mechanism, the liquid storage barrel, the metering and discharging mechanism, the clamping and pulling mechanism, the belt pulling mechanism and the pressing and sealing mechanism, liquid in the liquid storage barrel is subjected to filling, edge sealing and cutting to form single products, the whole process is operated through equipment, continuous production of the products is achieved, and the production efficiency of the products is improved; meanwhile, the clamping and pulling type structure can prevent the problem of wire drawing, can exhaust most of gas in the packaging bag in the packaging process, is moisture-proof and dust-proof, further reduces the deterioration risk of the liquid product, and improves the quality of the product.

The invention relates to the technical field of shoe accessory preparation, in particular to an automatic preparation method for a carbon-reducing insole, which comprises the following steps of: pretreating a fiber raw material, mixing various raw materials, performing hot press molding to obtain the insole, and respectively acquiring outline information of the insole from the side surface and the upper part of the insole. According to the obtained area of the overlapped part of the side face and the expected side face, whether the prepared insole is qualified or not is preliminarily analyzed, and when the area of the overlapped part is small, whether the prepared insole is qualified or not is secondarily judged by combining the obtained outline of the top view of the insole, so that the control precision for the size of the insole is improved, and the production efficiency is improved. The quality of the insole is accurately controlled, when the area of the overlapped part is very small, the reason for the unqualified prepared insole is analyzed according to the area of the overlapped part on the side surface, and the corresponding parameter is adjusted to the corresponding value, so that the debugging efficiency in the insole preparation process is improved, and the production efficiency is improved.

The invention discloses a copper alloy chip heat dissipation shell and a welding method thereof, and relates to the technical field of welding. Comprising the following steps that the surface of a copper alloy welding part is subjected to finish machining, and a pretreated welding part is obtained; after the pretreated welding part is tightly assembled, welding flux is clamped, technological parameters are set, resistance welding is conducted, and a welding joint is obtained; wherein the technological parameters comprise the welding power of 10 KVA to 20 KVA, the welding pressure of 0.5 T to 1.5 T and the welding time of 3 s to 8 s; and performing post-welding treatment on the welding joint to obtain a copper alloy chip heat dissipation shell product. Resistance welding is adopted, the welding quality is accurately controlled by adjusting current, pressure and welding flux, preparation of a high-quality welding connector is achieved, welding can be rapidly completed at a time, the welding efficiency is high, the yield of finished products is high, the welded finished products are free of defects such as air holes and hot cracks, and the hardness and the conductivity of the products both meet the use requirements.

A perlite ore sand negative pressure feeding device, including, the upper end of the elevator is provided with a discharge pipeline, one side of the elevator is provided with a mound packaging platform, the hopper is located on the side away from the mound packaging platform of the elevator, the lower end of the hopper is connected with a first auger, the upper part of the hopper is provided with a bin top dust collector, the electric plug valve is connected between the hopper and the first auger, and the second auger is connected below the first auger.The point is that this way can not only ensure the stability and uniformity of the raw materials in the conveying process, but also reduce the loss and waste of raw materials, improve production efficiency and product quality, meet the strict requirements of modern production process on material quantitative and qualitative control, and form a dust suction negative pressure in the elevator and the hopper through the bin top dust collector.During the discharging process, dust will appear, and the dust is directly sucked away from the elevator and the hopper through the top dust collector, so that the outside is not dusty, and the hygiene degree of the process is improved.

The invention relates to the technical field of waterproof coiled material processing, in particular to a waterproof coiled material intelligent sanding processing device which comprises a workbench, a mounting plate and a sanding machine and further comprises adjusting plates, the adjusting plates are located on the sanding machine, the number of the adjusting plates is multiple, and the sanding amount of the sanding machine is synchronously adjusted through the adjusting plates according to the thickness of a waterproof coiled material; when the intelligent sanding processing device for the waterproof coiled material is used, the adjusting assembly is arranged, so that the sanding quantity of a sanding machine can be synchronously adjusted according to the thickness change of the same waterproof coiled material, the sanding quantity is adjusted according to the thickness of the coiled material, and it can be ensured that positions with different thicknesses in the same batch of coiled materials have consistent anti-skid performance; the coiled material sanding device is simple in structure and convenient to use, safety during use can be guaranteed, unnecessary waste and rework can be reduced by accurately controlling the sanding amount, meanwhile, the quality of coiled materials can be guaranteed by accurately controlling the sanding amount, the quality problem caused by insufficient materials is avoided, material waste caused by excessive sanding can be avoided, and therefore the production cost is reduced.

The invention relates to a pushing piston assembly for a Stirling cryocooler. A pushing air floatation neck bush is fixed to the inner side of a guide piston, and a first gap is formed between the pushing air floatation neck bush and the guide piston. A valve plate component is arranged on the inner side of the guide piston and corresponds to the air suction hole; a porous medium part is arranged at the position, right opposite to the first gap, of the pushing air floatation neck bush, and the porous medium part communicates with a first micro-ring groove located around the guide piston through a first small hole in the pushing air floatation neck bush. A second micro-ring groove is formed in the position, close to the first micro-ring groove, of the periphery of the guide piston, a second gap is formed between the area between the first micro-ring groove and the second micro-ring groove and the guide piston, and the first micro-ring groove communicates with the second micro-ring groove through the second gap. By parity of reasoning, the Nth micro-ring groove is communicated with the (N + 1) th micro-ring groove through the (N + 1) th gap; a second small hole partially coinciding with the (N + 1) th micro-ring groove is formed in the position, where the (N + 1) th micro-ring groove is located, of the guide piston, and the second small hole communicates with the outside of the side wall of the guide piston.

The invention relates to a slurry coating device and method for a corrugated plate type catalyst. The device comprises a bearing frame, a first weighing unit, a coating suction cavity, a feeding unit, a suction unit, a second weighing unit and a transferring unit, and the bearing frame is used for loading the corrugated plate type catalyst; the first weighing unit is used for weighing the corrugated plate type catalyst; the coating suction cavity is used for accommodating a corrugated plate type catalyst, and a pressure sensor is arranged in the coating suction cavity; the feeding unit is used for conveying slurry into the coating suction cavity; a flow meter is arranged on a pipeline for communicating the feeding unit with the coating suction cavity; the suction unit is communicated with the coating suction cavity; the second weighing unit is used for weighing the corrugated plate type catalyst; and the transfer unit is used for transferring the corrugated plate type catalyst to the coating suction cavity or away from the coating suction cavity. According to the slurry coating device for the corrugated plate type catalyst, the coating uniformity and quality of the slurry of the corrugated plate type catalyst can be accurately controlled.

The invention relates to the technical field of traditional Chinese medicine identification, in particular to a thin-layer identification method for kelp or a preparation thereof. The identification method comprises the following steps: (1) preparing a test solution and a reference medicinal material solution; and (2) taking the test sample solution and the reference medicinal material solution, spotting, developing by taking a mixed solution of water, absolute ethyl alcohol and n-butyl alcohol as a developing solvent, taking out, and spraying a color developing agent for developing. The thin-layer identification method has the advantages of simple preparation of the test solution, no toxicity and the like, the obtained thin-layer chromatography is rich in spot information, good in separation degree, clear in chromatogram color development and accurate in identification result, and the quality control of the kelp and the preparation thereof is facilitated.

The invention discloses a preparation method of a high-performance titanium dioxide film, which comprises the following steps: firstly, preparing titanium dioxide colloid by using a sol-gel method, and adding an anionic surfactant sodium 1-octanesulfonate in the process of preparing TiO2 sol to increase the repulsive force among colloid particles so as to prevent the colloid particles from gathering and settling and improve the stability of the colloid; and then selecting a silicon wafer with a P-type (100) crystal face as a bottom selection, spin-coating, and carrying out heat treatment to obtain the titanium dioxide film. The silicon wafer has high carrier (electron and hole) mobility, so that the conductivity of the material is improved; the structure has high flatness and lattice parameter consistency, and the repeatability in the preparation process is improved. The preparation method is convenient to operate, simple in equipment and low in cost, and the prepared titanium dioxide film is high in stability, tight in combination with the substrate, high in piezoelectric constant and outstanding in catalytic performance and has wide application prospects in the fields of sensors, environmental pollution control and artificial intelligence.

The invention belongs to the technical field of drug detection, and specifically relates to a method for simultaneously separating and detecting multiple impurities in cefepime hydrochloride for injection. The method comprises preparing a test solution with cefepime hydrochloride for injection, and performing high performance liquid chromatography detection by gradient elution. The method can simultaneously and accurately and sensitively detect 10 known impurities in cefepime hydrochloride for injection. The method has strong specificity, low quantitative limit and detection limit, and good repeatability and separation.

The invention relates to the technical field of waterproof coiled material processing, and specifically to an intelligent sand-spreading device for waterproof coiled material, comprising a workbench, a mounting plate and a sand-spreader, and also comprising an adjusting plate, wherein the adjusting plate is located on the sand-spreader, and a plurality of adjusting plates are provided, and the sand-spreading amount of the sand-spreader is synchronously adjusted according to the thickness of the waterproof coiled material through the adjusting plate; when the intelligent sand-spreading device for waterproof coiled material is in use, the benefit of the setting of the adjusting component is that the amount of sand-spreading by the sand-spreader can be synchronously adjusted according to the thickness change in the same roll of waterproof coiled material, and the amount of sand-spreading can be adjusted by the thickness of the coiled material, so that the positions of different thicknesses in the same batch of coiled materials have consistent anti-slip performance, which helps to ensure the safety during use, and the precise control of the amount of sand-spreading can reduce unnecessary waste and rework, and the precise control of the amount of sand-spreading can ensure the quality of the coiled material, avoid quality problems caused by insufficient materials, and avoid material waste caused by excessive sand-spreading, thereby reducing production costs.

The invention provides a construction method and application of a fingerprint spectrum of Hexishi chrysanthemum. The construction method comprises the following steps: a) preparation of reference substance solutions: taking aesculetin, scutellarin, apigenin and luteolin as reference substances, respectively adding solutions for dissolving to obtain the reference substance solutions, and the reference substance solutions comprise an aesculetin solution, a scutellarin solution, an apigenin solution and a luteolin solution; b) preparation of a test solution: mixing the powder of the Hexishi chrysanthemum with a methanol solution, carrying out heating reflux treatment, cooling, and filtering to obtain the test solution; and c) placing the test solution and the plurality of reference substance solutions in a high performance liquid chromatograph, and measuring to obtain a high performance liquid chromatogram of the test solution and high performance liquid chromatograms of the reference substance solutions. The method can solve the problem of lack of a method for controlling the quality of the Hexishi chrysanthemum in the prior art, and is suitable for the field of traditional Chinese medicine analysis.

The invention provides an online coal quality laser detection system, and belongs to the technical field of coal quality detection.The online coal quality laser detection system comprises a laser emitting module, a laser receiving module, a laser signal processing module and a laser data display module, a photoelectric detector and an optical filter of the laser receiving module receive and process signals, the signal processing module rapidly and accurately calculates coal quality indexes, errors are low, the data display module visually displays results, the system is installed on a conveying belt, the module position angle is adjustable, precision is high, coal sample changes can be adapted, and standard coal samples are used for calibration. Long-time stable operation is guaranteed, real-time detection can be achieved, the result can be displayed within five seconds, data can be stored for trend analysis, and powerful support is provided for coal production and management.

The present application relates to a product quality monitoring method, device, equipment and medium based on multi-stage decision-making. The method includes: calculating the minimum number of sampling inspections for sampling inspections according to a statistical hypothesis testing model; performing sampling inspections on spare parts using the minimum number of sampling inspections, determining whether to accept spare parts from suppliers using a sampling plan and producing electronic products based on the accepted spare parts, and establishing a multi-stage decision model; solving the multi-stage decision model, considering the defective rate and sampling inspection error in the sampling inspection process to perform sensitivity analysis on the obtained complex production process decision plan, optimizing the sampling inspection process using a Bayesian inference method based on the analysis results, determining an optimized complex production process decision plan based on the optimized sampling plan; and using the optimized complex production process decision plan to monitor product quality. The use of this method can reduce production costs and improve product quality.

The present invention discloses a method, device, electronic device and storage medium for constructing a seismic wave velocity model, and relates to the technical field of seismic data processing. The method includes collecting seismic monitoring data; identifying microseismic events on the seismic monitoring data; obtaining the initial arrival of each microseismic event after identifying the microseismic event generated by the fracturing operation; obtaining the formation parameters of the fracturing operation area according to the logging curve and three-dimensional seismic profile data of the fracturing operation area, and establishing the initial velocity model of the seismic wave of each formation based on the formation parameters; constructing the phase time difference function of all microseismic events according to the theoretical travel time and the initial arrival of the seismic phase of each microseismic event; optimizing the formation parameters using a nonlinear optimization algorithm to obtain the velocity optimization model of the seismic wave of each formation; and repeating the optimization multiple times to obtain the final velocity model of the seismic wave of each formation. The method, device, electronic device and storage medium disclosed in the present invention can accurately establish the velocity model of the seismic wave of each formation.

The application discloses a raw material output device, which comprises a raw material pipe for containing raw materials, a constant pressure device in communication with the raw material pipe for inputting constant pressure gas to the raw material pipe to push the raw materials, and a jet valve connected with a discharge port of the raw material pipe for jetting and outputting the raw materials. The application applies adjustable and stable pressure to the raw materials through the constant pressure device, and the jet valve can accurately control the quality of the raw materials output from the raw material pipe. Moreover, a gas-liquid conducting seat is adopted to realize integrated pressure supply and raw material output for multiple raw material pipes, which is beneficial to miniaturization of the device. Therefore, the device can be used for accurate control of raw material output in multiple different application scenarios, and has wide application.

The invention discloses a full-automatic adjustable winding machine for a laboratory and a use method of the full-automatic adjustable winding machine, particularly relates to the technical field of winding machine machining and manufacturing, and solves the technical problem that an existing laboratory winding machine method meets the high-precision and personalized requirements of a laboratory or customized production for coil winding efficiency and winding quality. According to the technical scheme, dynamic adjustment in the wire discharging process can be achieved through the wire discharging mechanism; the coil is fixed, rotated and cut off on the chuck through the winding mechanism; the wire taking mechanism comprises a storage disc and a storage hook and is responsible for conveying and producing coils; according to the coil winding device, the winding speed and the wire outlet position can be automatically adjusted, the effects of accurately controlling the number of turns of coils, uniformly routing and simply fixing are achieved, the specifications of the coils can be adjusted in a user-defined mode, full automation of coil production is achieved, and the multi-directional requirements of small places such as laboratories for coil manufacturing are met.

The invention discloses a rapid construction method of a half partial nitrification granular sludge system, which comprises the following steps: starting a reactor by adopting a sequencing batch reactor (SBR) and inoculated and stored heterotrophic granular sludge, measuring the ammoxidation rate of the granular sludge at the early stage of operation of each stage, measuring nitrite nitrogen and ammonia nitrogen in effluent in a first period, and determining the ammonia nitrogen in the effluent in a second period; when the ratio of the two is greater than 1.32, the aeration time is recalculated along with the correction of the ammoxidation rate so as to reduce the aeration time in the next period; if the ratio of nitrite nitrogen to ammonia nitrogen in the effluent in the first period is less than 1.32, correcting the ammoxidation rate, and recalculating the aeration time to increase the aeration time in the next period; and repeatedly correcting the aeration time and the standing time in each period through the ammoxidation rate until the ratio of nitrite nitrogen to ammonia nitrogen in effluent is stabilized between 1.28 and 1.35. The half-amount short-cut nitrification granular sludge system rapidly constructed by the method is low in operation cost and high in reliability, and an effective new method is provided for rapid construction of the half-amount short-cut nitrification granular sludge system in the SBR.

The present application relates to papermaking technical field, specifically to a kind of pulping papermaking DCS slurry proportioning control method, S1: slurry liquid level PID control output obtains each slurry proportioning intermediate calculation value standby;S2: each slurry concentration value selection;S3: the absolute dry weight flow calculation of each slurry;S4: with absolute dry weight flow proportioning flow control value transmission to the flow PID loop set value of each slurry;S5: each slurry is provided with input cascade selection;S6: each slurry real-time absolute dry pulp calculation and summation;S7: because the "absolute dry proportioning flow control value" calculated with "flow proportioning control amount" is greater than the set value of flow PID;The flow real-time value in the absolute dry weight calculation in the S6 is not less than zero, and the divisor is not zero Limit or mathematical processing;S8: host computer slurry picture parameter setting and display.The present application can accurately control paper quality, stable production, avoid the fluctuation of concentration and affect production quality.