50results about "Paper testing" patented technology

This application discloses a method, apparatus, equipment, and storage medium for calculating the moisture content of electrical insulation paperboard, relating to the field of transformer technology. The method for calculating the moisture content of electrical insulation paperboard includes: collecting data on the exposure time and environment of the target transformer body; calculating the moisture absorption rate of the electrical insulation paperboard of the target transformer body based on the exposure time and environmental data combined with a moisture absorption rate calculation model; calculating the stage saturated moisture content of the electrical insulation paperboard of the target transformer body based on the exposure time and environmental data combined with a stage saturated moisture content calculation model; and calculating the moisture content of the electrical insulation paperboard based on the exposure time, moisture absorption rate, and stage saturated moisture content. This method achieves accurate calculation of the moisture content of electrical insulation paperboard based on environmental information and a constructed calculation model without damaging the paperboard, improving the efficiency of moisture content calculation while ensuring real-time performance.

The utility model belongs to the technical field of recycled environment-friendly paper, and particularly relates to a detection device for recycled environment-friendly paper production, which comprises a triangular plate, a vertical column is welded at the top of the triangular plate, a rotating plate is rotatably mounted at one end, far away from the triangular plate, of the vertical column, and a clamping component is detachably mounted at the top of the rotating plate; the two clamping assemblies are arranged oppositely, and the movable end of the vertical column is fixedly connected with a movable clamping strip. According to the detection device for regenerated environment-friendly paper production, the multiple clamping assemblies and the movable clamping strips are installed on the rotating disc at equal intervals, the driving motor drives the rotating disc to rotate, clamped regenerated paper is made to pass through the position under the ejector block in turn to be detected, in the detection process, the detected regenerated paper can be synchronously disassembled, and the detection efficiency is improved. And undetected recycled paper is loaded, so that parallel operation of feeding, discharging and detection is realized, the shutdown time of the device is shortened, a continuous detection process is favorably realized, and the detection efficiency is further improved.

A base weight measurement system for measuring a base weight of a sheet, the base weight measurement system comprising: a nucleon sensor; an infrared measurement device configured for independently measuring infrared light at at least two spectral regions, where for at least a first of the spectral regions, the spectrum of the measured light is limited such that when the infrared measurement device performs the measurement at the first spectral region, the spectrum of the measured light is limited to the spectrum of the measured light at the second spectral region. The spectral response of the infrared measurement equipment at the wavelength of 1.954 mu m differs from the spectral response of the infrared measurement equipment at the wavelength of 2.1 mu m by at least two times; and an analysis device, the analysis device comprising: a data input interface configured to receive data from the nuclear sensor and the infrared measurement device; and a basic weight determination module configured to determine a basic weight of the sheet by combining data obtained from the nucleon sensor and from the infrared measurement device.

The invention provides a power equipment oil paper insulation sample moisture state estimation method and system, and belongs to the field of insulation performance monitoring and management.The method comprises the steps that the water content corresponding relation between oil and paper in the heating / cooling process is obtained based on an Oommen curve, and a heating and cooling asymmetric kinetic equation is obtained based on fitting of the water content corresponding relation between the oil and the paper; a core kinetic equation is constructed based on a kinetic equation with asymmetrical temperature rise and temperature drop, a temperature-dependent time constant equation and a rate-dependent equation. And substituting the temperature change at different moments and the water content change of the insulating oil into a core kinetic equation for calculation to obtain the water content in the insulating paper. And a technical support is provided for moisture state evaluation and equipment life management of the oil paper insulation system.

A fiber processing system includes a fiber processing unit having an inlet, accepts outlet, and solid discharge outlet and configured to remove solid contaminants from a fiber-containing stream to produce an accepts stream exiting the accepts outlet and a solid discharge stream exiting the solid discharge outlet. The fiber processing system includes an optical system having an imaging device and image processing system. The imaging device is configured to capture images of the solid discharge stream at or downstream of the solid discharge outlet, and the image processing system is configured to determine relative fiber content, a relative generation rate, types of materials in, or combinations thereof of the solid discharge stream from the captured images. The fiber content, generation rate, and / or types of materials of the solid discharge stream are used to control operation of the fiber processing system or other upstream pulp processing equipment.

The invention provides a technology of a more appropriate resin countermeasure in a paper manufacturing process. Provided is a method for estimating the amount of large stickies in paper manufacturing on the basis of the amount of acrylate-based polymers contained in a management subject in paper manufacturing. Provided is a method for manufacturing paper, in which the level of large stickies countermeasures in paper manufacturing is adjusted on the basis of an increase or decrease in the amount of an acrylate-based polymer contained in a management subject in paper manufacturing.

The invention relates to a measuring device (100, 100 ') for determining individual parameters of a sheet-like material, such as a flat toilet paper and flat textile material or textile material, and to a method for determining individual parameters using such a measuring device (100, 100').

The present disclosure provides a component detection method and device, a storage medium and a program product. The component detection method comprises: collecting detection samples at a predetermined frequency in the production process of a tobacco-containing source functional paper base, wherein the detection samples comprise tobacco pulp samples and paper base samples; detecting the total nitrogen content of the tobacco pulp samples and the total nitrogen content of the paper base samples; determining the component content according to the total nitrogen content of the tobacco pulp samples and the total nitrogen content of the paper base samples, wherein the component content comprises the tobacco pulp content and the commodity pulp content.

There is provided a method for evaluating effect of microbial community on production problems of a process producing a cellulose based article and / or defects of the produced cellulose based article.

The present invention relates to a method of determining the quantitative ratio of melamine-formaldehyde resin and urea-formaldehyde resin in at least one paper ply impregnated with a mixture of these resins, wherein the impregnation is conducted in a system for impregnation of at least one paper ply running through the system, comprising the steps of impregnating multiple paper plies with resin mixtures each with different quantitatively defined ratios of melamine-formaldehyde resin and urea-formaldehyde resin as reference samples; recording at least one NIR spectrum of each of the reference samples using at least one NIR measurement head in a wavelength range between 500 nm and 2500 nm, preferably between 700 nm and 2000 nm, especially preferably between 900 nm and 1700 nm, and particularly advantageously between 1450 nm and 1550 nm; assigning the different quantitative ratios of melamine-formaldehyde resin and urea-formaldehyde resin in the reference samples to the recorded NIR spectra of the reference samples mentioned; and creating a calibration model for the correlation between the spectral data of the NIR spectra and the corresponding quantitative ratios of melamine-formaldehyde resin and urea-formaldehyde resin of the reference samples by means of a multivariate data analysis; impregnating at least one paper ply with a resin mixture of melamine-formaldehyde resin and urea-formaldehyde resin; recording at least one NIR spectrum of the impregnated paper ply using the at least one NIR measurement head in a wavelength range between 500 nm and 2500 nm, preferably between 700 nm and 2000 nm, especially preferably between 900 nm and 1700 nm and particularly advantageously between 1450 nm and 1550 nm; and determining the quantitative ratio of melamine-formaldehyde resin and urea-formaldehyde resin in the impregnated paper ply by comparing the NIR spectrum recorded for the impregnated paper ply with the calibration model created.

The present application relates to the device for testing the cleaning effect of sanitary products wiping the anal region. The bionic model module comprises at least two bionic hip models arranged on the top of the box body, the bionic hip models are made of transparent and elastic material, the bionic hip models comprise simulated anal regions, a catheter is embedded in each bionic hip model, and the outlet of the catheter is located at the simulated anal region of the corresponding bionic hip model. The delivery module comprises a simulated dirt container, a delivery pipe, a peristaltic pump assembly and a distribution module, the inlet of the delivery pipe is in communication with the simulated dirt container, the outlet of the delivery pipe is connected with the distribution module, the outlet of the distribution module is connected with the at least two catheters, the peristaltic pump assembly is arranged on the delivery pipe to drive the quantitative delivery of the simulated dirt, and the transillumination enhancement module is used for enhancing the transillumination or reflection display effect of the corresponding simulated anal region of the bionic hip model, so as to improve the visibility of the simulated dirt residue.

The invention relates to the technical field of processing and conveying, and discloses paper product processing, feeding and conveying equipment which comprises two conveying tables, a conveying belt is arranged between the two conveying tables, the conveying belt is of a three-section structure and comprises two inclined sections and a straight section, and a fixing plate is fixedly mounted on the upper surface of the conveying belt; a placement plate is fixedly connected above the fixed plate, one end of the placement plate is fixedly connected with a hinge seat, supporting plates are symmetrically hinged to the inner wall of the hinge seat, a mounting plate is arranged above the placement plate, and a plurality of detection heads are fixedly connected to the bottom of the mounting plate. The rotating assembly can trigger the supporting plate to rotate in time, the included angle between the supporting plate and the containing plate is changed, conditions are provided for sliding of unqualified paper tubes, it is ensured that unqualified products can be smoothly separated from the conveying belt, qualified products can be smoothly conveyed through the whole conveying belt, and the production efficiency is improved.

The utility model relates to the technical fields of special paper detection, especially to a special paper detection device, which is provided with a roller pressing restraint mechanism with damping rotation arranged outside, can keep the paper tension in the detection box and improve the reliability, comprising a paper detection box, further comprising a connecting frame, a rotary damper, a lower pressing roller, a guide sleeve, a sliding rod, a pull tab, a connecting spring, a top frame and an upper pressing roller, the input side of the paper detection box is connected with the outside of the front side of the connecting frame, the middle inner side of the top of the connecting frame is connected with the outside of the guide sleeve, the inner wall of the guide sleeve is vertically slidingly connected with the outer wall of the sliding rod, the top end of the sliding rod is connected with the middle part of the bottom side of the pull tab, the connecting spring is connected between the outside of the bottom of the pull tab and the outside of the guide sleeve on the top end of the connecting frame, the bottom side of the sliding rod is connected with the middle part of the top side of the top frame, the upper pressing roller is rotatably arranged in the top frame, the lower pressing roller is rotatably arranged in the connecting frame through the rotary damper, the upper pressing roller corresponds to the lower pressing roller horizontally, and the front side of the paper detection box is provided with a winding mechanism.

A method of producing a microfibrillated cellulose, MFC, film from an MFC dispersion, comprises subjecting a wet MFC film on a support to at least one drying step to form a dry MFC film (F'), measuring at least one parameter indicative of the dry solids content in the wet MFC film (F) and / or in the dry MFC film (F') at at least two data points which are laterally spaced across at least a width of the MFC film (F, F'), and varying drying conditions of at least one of said at least one drying step across a width of the wet MFC film (F, F') in response to said parameter. There is also disclosed a device for producing MFC film, use of such device and an MFC film.

A method for preventing rejections or for decreasing downtime of a paper, board, or tissue machine, comprising monitoring at least conductivity and a second parameter in wet end of the machine, determining whether an increased risk for rejections or machine downtime exists based on said monitoring, and taking action in the event an increased risk exists based on the determination.

This invention relates to the field of polymerization degree detection technology, and discloses a method and system for detecting the polymerization degree of insulating paper in transformers. The method includes acquiring viscosity data of insulating paper samples and corresponding solvent type, temperature change rate, and concentration difference; constructing a multi-dimensional feature vector and merging it into an original dataset; grouping and statistically analyzing by solvent, temperature, and concentration to obtain a set of correction factors and performing three corrections sequentially: when the temperature change exceeds a threshold, the viscosity is corrected using a temperature correction factor; when the solvent influence exceeds a threshold, the viscosity is corrected using a solvent correction factor; when the concentration difference from the standard value exceeds a threshold, the viscosity is adjusted using a concentration correction factor. Finally, a final viscosity set after multi-factor correction is obtained, and the polymerization degree value is obtained through the conversion relationship between viscosity and polymerization degree. This method can accurately establish a correction and calculation mechanism reflecting the true aging state of insulating paper under complex and variable experimental conditions, achieving high-precision detection of the polymerization degree.

The utility model relates to the technical field of monitoring equipment, in particular to a greenhouse crop growth environment recording and monitoring device which comprises a soil monitoring assembly, the soil monitoring assembly comprises a controller, a multi-section telescopic rod is fixed to the bottom of a shell of the controller, and a soil sensor is installed at the telescopic end of the multi-section telescopic rod; and the cleaning mechanism comprises a fixing ring, the fixing ring is coaxially fixed to the multi-section telescopic rod, rotating shafts are rotationally installed on the two sides of the fixing ring correspondingly, fixing plates are fixed to one ends of the rotating shafts, the two fixing plates are jointly rotationally provided with a brush roller, and a third servo motor is fixed to one fixing plate. After the soil sensor detects the soil, the soil sensor is pulled back through the multi-section electric telescopic rod, and after the soil sensor is pulled back, the brush roller in the cleaning mechanism cleans the contact end of the soil sensor, so that the accuracy of the soil sensor for detecting the soil in the next area is ensured.

The application discloses a dynamic filterability and retention rate tester and relates to the technical field of paper sheet forming equipment. The dynamic filterability and retention rate tester comprises a machine base, a receiving groove arranged on the machine base, a rotating mechanism arranged in the machine base, a rotating end of the rotating mechanism extending into the receiving groove, a filter cylinder arranged at the top end of the receiving groove and detachably connected with the machine base, a rotating end of the rotating mechanism located in the filter cylinder, a first stirring rotor or a second stirring rotor arranged in the filter cylinder and rotationally connected with the rotating end of the rotating mechanism, and the first stirring rotor or the second stirring rotor seals a discharging port of the filter cylinder. A receiving cylinder is arranged on the receiving groove and located below the filter cylinder, and the discharging port of the filter cylinder faces a feeding port of the receiving cylinder. The dynamic filterability and retention rate tester can be used to measure filterability or retention rate according to measurement requirements, the application range of the tester is widened, and the equipment investment cost is reduced.

The present invention relates to a device and a method for detecting a measuring range comprising a housing, a detector and an air guidance system, wherein the housing has an interior and an observation tunnel, wherein the observation tunnel is open to the outside on one side and is connected to the interior on another side via an observation opening, wherein the detector is arranged in the interior of the housing such that the detector detects the measuring range through the observation tunnel during operation of the device, wherein the air guidance system comprises at least one clearance channel which is arranged in a wall of the housing and is not in contact with the interior of the housing, wherein the at least one clearance channel has an outlet opening which is arranged in the observation tunnel in order to keep the interior of the housing free of foreign particles from the outside by means of a clearance airflow.

The invention relates to a paper making system comprising a plurality of guide rollers including a first guide roller, a carrier forming a continuous surface contacting the plurality of guide rollers, the carrier having a paper side and a back side and being configured to travel in a first direction around the plurality of guide rollers during a paper making process, a paper stock source configured to provide a paper stock to the paper side of the carrier, a cleaning blade arranged to clean the first guide roller, a vibration sensor configured to detect vibration of the cleaning blade, and a controller in communication with the vibration sensor and configured to receive vibration data from the vibration sensor, analyze the received vibration data, and if the vibration data satisfies a predetermined condition, initiate a corrective action. Moreover, the invention relates to a method for addressing the problem of deposits in a paper making system.

The utility model discloses a paper fiber water resistance rapid detection device which comprises a water collecting tank, a partition plate is fixedly installed on the inner wall of the water collecting tank, the water collecting tank is made of transparent tempered glass, a plurality of draining holes are evenly formed in the middle of the top end of the partition plate, and a water spraying pressing mechanism is fixedly installed on the rear side of the water collecting tank. A drainage pipe is fixedly connected to the bottom of the left side of the water collecting tank, a valve is installed on the drainage pipe, and a timer is fixedly installed on the left side of the front face of the water collecting tank. According to the utility model, through the arrangement of the water spraying pressing mechanism, the rectangular frame and the rectangular rubber sealing ring in the water spraying pressing mechanism can effectively press paper, so that the paper is prevented from deviating in the detection process, water is prevented from being directly discharged from the draining holes, and the accuracy of a detection result is remarkably improved.

The present invention relates to a device for determining the liquid absorption of a substrate, said substrate comprising a liquid barrier layer, and said device comprises a receptacle for receiving a volume of matter, said receptacle comprising a closed proximal end and an open peripheral end, wherein said open peripheral end is arranged to receive a sample substrate; and a retaining arrangement arranged to sealingly retain said sample substrate at said open peripheral end such that said liquid barrier layer faces said receptacle and said sample substrate sealingly separates the inside volume of said receptacle from ambient air. The present invention also relates to a method for measuring absorption of a substrate.

The utility model discloses a comprehensive paper diaper production device which comprises a device base, a clamping and stretching detection structure, a clamping and stretching detection mechanism and a clamping and stretching detection mechanism. The utility model relates to the technical field of paper diaper production and detection equipment, and has the beneficial effects that the problems that most of the existing paper diaper production equipment adopts a manual or semi-automatic mode to carry out quality detection, the mode is low in efficiency and is easily influenced by human factors, so that the product quality is unstable, and the detection efficiency is high are solved; the problems that in the prior art, tensile property detection is subjective, the detection quality cannot be guaranteed, meanwhile, metal objects possibly fall into paper diapers in the production and conveying process, and the use safety of subsequent users is affected are solved.

The application relates to the technical field of defect detection, and specifically discloses a defect detection device for inner lining paper processing and production, which comprises a detector base, a fixing seat is fixedly installed in the inside of the detector base, one detection seat is slidably installed at the two ends of the fixing seat, a bidirectional sliding table one is fixedly installed at the top of the detector base, two deviation rectifying assemblies are symmetrically arranged at the bottom of the bidirectional sliding table one, and two clamping assemblies are symmetrically arranged at the top of the fixing seat; the two ends of a sample are limited through scale adjustment of the movable plate, after the sample is placed between the positioning plate and the movable plate, the positioning plate is pushed upward, the support plate supports the bottom of the sample through gear and rack transmission driving, the positioning plate is driven by the spring one to press the sample, the bidirectional sliding table one is started, the positioning mechanism and the supporting mechanism are driven by the movable seat and the mounting seat to complete sample cleaning and righting, dust interference and uneven stress problems are effectively reduced, and the detection precision is obviously improved.

The invention relates to a method for detecting the types of under-points in paper. The method comprises the following steps: identifying and marking the positions of the under-points in the paper; detecting a bright domain area (A bright) and a bright gray value (G bright) of the under-point position so as to determine whether the under-point position is a bright spot or a broken hole; when the under-point position is a broken hole, detecting the under-point area (A), the under-point length (L), the under-point width (W) and the roundness value (R) of the under-point position to determine the type of the under-point; and carrying out traceability analysis on the underpoint position. The step of carrying out traceability analysis on the under-point position comprises a rule analysis sub-step, a displacement checking sub-step and a sampling analysis sub-step. Therefore, fine classification and setting of the characteristic parameters are carried out based on the defects of the actual sample, and the working efficiency and accuracy of the paper defect detection system can be improved. In addition, traceability analysis is performed according to classification, so that the influence of paper holes on paper quality and operation efficiency can be reduced, and quick response processing is realized.