65 results about "Residual mass" patented technology

The invention discloses a method of harmless treatment to residual activated sludge produced by bottom sludge, scum and biochemical treatment units in the petrochemical industry, which comprises: emulsion breaking to the bottom sludge and scum; separation of oil, water and mud of products after emulsion breaking; and recovery of dirty oil at the upper part and sedimentation of mud-water mixture at the lower part, recovery of clear liquor at the upper part, and treatment of coagulation conditioning, flocculation conditioning, sludge concentration, sludge dewatering, sludge drying and sludge incineration to mud-water mixture at the bottom part and the residual activated sludge sequentially. The method can effectively recycle useful oil substances and aluminum-containing compounds in the bottom sludge and scum, purify possibly released malodorous gases in mud produced in the process of storage and disposal, and carry out the treatment such as sludge conditioning, dewatering and drying sequentially to the residual mass hazardous wastes after the recycling treatment, then utilize the current boilers in enterprises to implement the direct incineration treatment. The method has advantages of simple operation and running, safety and reliability, complete resource recovery, controllable water removal, and maximally reducing the environmental pollution.

The invention discloses a novel method and apparatus to determine the degree of residual mass unbalance and a corrective balance solution for a rotating assembly having a non-vertical axis of rotation. When the center of mass of the rotating assembly is not concentric with the axis of rotation, the condition of unbalance exists. When the rotating assembly is driven by a motor or drives a generator, fluctuations in power are produced proportional to the degree of unbalance. The method and apparatus to determine the degree of mass imbalance consists of measuring the average instantaneous real power over an interval of time, calculating the Fourier Transform of the demodulated signal, establishing the peak amplitude and phase associated with the angular velocity of the rotating assembly and calculating the amount of unbalance. The method and apparatus to provide for a corrective solution consists of simultaneously acquiring a position reference signal of the rotating assembly with the average instantaneous real power signal, calculating the phase difference between the two acquired signals at the angular velocity of the rotating assembly, calculating the magnitude of the unbalance, and calculating the quantity and location of corrective weight necessary to minimize the unbalance to an acceptable level.

The invention discloses a method for estimating a disturbance moment in a power decreasing process. In the process of decreasing soft landing power in the moon, the disturbance moment generated by centroid shift is possible to endanger landing. An important measure for early warning and answering is that the magnitude of the disturbance moment is estimated online. The method comprises the following steps of firstly, recursively calculating the residual mass of a lander by utilizing motor power and a pulse width command given out by a guidance and control system, and utilizing a curve (function) bound on the ground to calculate the height of center of mass of the lander and inertia; secondly, calculating a control moment according to the height of center of mass and a pulse width command; thirdly, carrying out difference on a gyro output to obtain an angular acceleration calculation value; fourthly, inversely calculating the disturbance moment by utilizing an attitude kinetic equation; finally, utilizing a filter to reduce the influence of noise on a disturbance moment estimated value. The invention provides a method for monitoring the change of the disturbance moment of the lander, and the method is beneficial to improve the robustness of the control system in the landing process and reduce the risk of landing.

The invention discloses an effectiveness criterion and residual life prediction method of a sacrificial anode and cathode protection system. According to the invention, the effectiveness criterion takes a sacrificial anode critical ground resistance as an evaluation index to perform effectiveness evaluation on a whole group of sacrificial anodes in the sacrificial anode and cathode protection system, if yes, the residual life of the system is calculated. The residual life prediction method can be used for obtaining the allowable minimal mass of the anodes, the residual mass of serving anodes and average output current through measurement and calculation so as to obtain the residual life of the sacrificial anodes. Compared with a traditional cathode protection effectiveness evaluation method, the sacrificial anode critical ground resistance is introduced in the effectiveness criterion for the first time to be taken as the cathode protection effectiveness evaluation index so that the cathode effectiveness evaluation method is more systematic and comprehensive; meanwhile, the invention also provides a simple and effective residual life prediction method for cathode protection engineering.

The invention provides a method for preparing high thermal stability microporous polymer electrolyte from imidazole cation intercalation montmorillonite. In the method, firstly, the imidazole cation intercalation montmorillonite is used to prepare high thermal stability montmorillonite; secondly, by the phase transition method, polyvinylidene fluoride, polyethylene glycol and the imidazole cation intercalation montmorillonite are added to the mixed solution of N,N-dimethylformamide and glycerin and violently stirred at a temperature of between 70 and 85 DEG C for 6 to 10 hours, the obtained evenly mixed solution is poured on a clean and preheated glass plate and vacuum dried at a temperature of between 100 and 130 DEG C for 30 t0 40 hours to obtain a polymer membrane with the thickness of between 100 and 300 micrometers; and finally the polymer membrane is soaked in electrolyte in a simple glass box for 24 to 72 hours to obtain the microporous polymer electrolyte. Tests show that the electrical conductivity of the microporous polymer electrolyte prepared by the method reaches 1.6 to 6.15mS/cm, and the residual mass of the dry membrane at a temperature of 400 DEG C(N2) is between 60 and 70 percent.

The invention discloses a method for detecting areal density of a ceramic coating of a lithium ion battery separator. The method comprises the steps: the first step: for a ceramic separator to be detected, observing upper and lower sides of the ceramic separator to determine the coating situation of the ceramic coating on the ceramic separator; the second step: intercepting and weighing a detecting sample of the preset area on the ceramic separator to be detected to obtain the quality of the detecting sample; the third step: placing the detecting sample in a crucible of a thermal gravimetric analyzer, heating the detecting sample, and obtaining a thermal gravimetric curve of the detecting sample by detection of the thermal gravimetric analyzer; the fourth step: obtaining the percentage ofresidual mass of the detecting sample after combustion in an oxygen atmosphere within the thermal gravimetric analyzer; and the fifth step: calculating the areal density of the ceramic coating in thedetecting sample. The invention can accurately and effectively measure the areal density of the ceramic coating in the ceramic separator, and further provides a basis for evaluating the quality of theceramic separator.

The invention relates to a composite intumescent flame retardant and an application thereof to the preparation of a flame-retardant epoxy resin composite material. The composite intumescent flame retardant comprises an intumescent flame retardant and an iron compound which are in the mass ratio of (24-29.9): (0.1-6). The composite intumescent flame retardant has the beneficial effects that the heat release speed, total heat release, smoke generation speed, total smoke generation quantity and smoke factor of an intumescent flame retardant epoxy resin composite material are remarkably increased by the addition of the flame retardant and the iron compound, and the residual mass of carbon residues is greatly increased; compared with a pure epoxy resin sample, an iron compound and intumescent flame retardant added sample has the advantages that the condition that the specific light density is reduced within shorter time proves that the intumescent flame retardant added sample is decomposed at the early stage so as to be beneficial to intumescence and flame retardance.

Disclosed is a method and apparatus for sensing residual toner mass after transfer of a xerographic image, to facilitate the identification and characterization of different types of transfer defects. The technique employed utilizes a nominal residual mass signature, measured at the start of a job, in conjunction with subsequent residual mass signature, where the calculated difference between the nominal and subsequent signatures is used to indicate transfer defects and changes in transfer efficiency.

The invention discloses a preparation method for an iron-nickel-molybdenum soft magnetic alloy sheet. Iron and molybdenum are molten in a vacuum induction smelting furnace first according to the mass ratio of 1:1-1.2, and molybdenum-iron intermediate alloy blocks are formed through pouring; then according to a mass ratio, 2%-8% of molybdenum-iron intermediate alloy blocks, 75%-85% of nickel, 0.05%-0.4% of phosphorus, 0.1%-0.45% of sulfur and smelting pure iron with the residual mass percent are molten in the induction smelting furnace, when the temperature of a molten alloy melt is increased to 1530-1580 DEG C, the alloy sheet is formed through quick solidification pouring, the sheet is soaked into water to be cooled and is then subjected to drying treatment, and the alloy sheet uniform in thickness, free of agglomeration and little in oxidation is obtained. Through the preparation method, the problem of large burning loss of precious metal molybdenum during smelting of iron-nickel-molybdenum alloy can be solved, the prepared alloy sheet can be directly used for a powder making procedure, alloy powder is obtained through ball milling, the technological process is simplified, production cost is reduced, meanwhile, the condition of alloy oxidation during production is reduced, and product performance is improved.

The embodiment of the invention discloses an experimental method and equipment for detecting wear of vulcanized rubber under high temperature and high humidity conditions, the experimental method is as follows: putting a vulcanized rubber sample in the testing equipment, setting work parameters of the testing equipment; setting the experimental high temperature and high humidity environment conditions, and starting the equipment; reaching set experimental time, turning off the testing equipment, weighing residual mass of the vulcanized rubber sample, and calculating the wear quantity in unit time of the vulcanized rubber under the high temperature and high humidity environment conditions. The experimental method and equipment solve the problem that the wear level of the vulcanized rubber under the high temperature and high humidity conditions cannot be detected, according to product requirements, the high temperature and high humidity environment conditions can be set for vulcanized rubber samples for wear experiments, and the wear value is more closer to control standards of approved products; and according to the experimental results and the laws of the parameters, anti-humid anti-heat wear resistance of heat resistant rubber can be optimized to a larger degree.

The invention discloses an application of aluminate substances to flame-retardant thermoplastic plastic as a flame retardant. An aluminate compound serving as a nano inorganic oxide precursor can be dispersed in a polymer substrate well and can be hydrated to generate nano inorganic oxide in a polymer molecule segment when encountering with moisture in air, so as to form an interpenetrating polymer network with the polymer substrate; compared with a case where nanoparticle oxide is added directly, a method of adding the inorganic oxide precursor effectively reduces agglomeration, migration and separation of nanoparticles in the polymer substrate. The flame-retardant thermoplastic which is prepared from the aluminate compound serving as the flame retardant is remarkably reduced in heat release rate, total heat release, smoke generation speed, total smoke generation amount and smoke factors, and the residual mass of carbon residues is greatly improved.

A quantitative determination method for fiber content of viloft fiber and polyester fiber blended textiles compriess the following steps: S1, putting viloft fiber and polyester fiber blended textiles in a baking box with a constant temperature of 102-108 DEG C to bake to dry, then rapidly taking out and putting in a dryer to cool to room temperature, and weighing the mass of the blended textiles and recording as m0; S2, putting the blended textiles into sulfuric acid with the concentration of 70%-80%according to the sample (g) to reagent (mL) bath ratio of 1:100-200, continuously shaking at 40-100 DEG C for 2-60 min; and S3, washing fiber indissolvable in sulfuric acid reagent in the step S2 with water to neutral, putting in a baking box with a constant temperature of 102-108 DEG C to bake to dry, rapidly taking out and putting in a dryer to cool to room temperature, and weighing the residual mass of the blended textiles and recording as m1. The dissolving temperature is controlled at 40-100 DEG C, because polyester fiber at the temperature shows extremely strong acid resistance and viloft fiber can be completely dissolved, a final detection result is highly consistent with an actual value, and the method has extremely high accuracy.

A method and a system for the production of potassium sulfate. The method comprises reacting a source of water soluble potassium with a magnesium sulfate-containing substance in presence of an aqueous alcoholic solution. The system comprises a first reactor for dissolving a water soluble potassium in water into a first solution; a second reactor for dissolving magnesium sulfate hydrate in water and adding methanol into a second solution; a third reactor, adapted to receive the first and the second solutions, mixed then under stirring and cool them down into a slurry; a filter collecting and filtering the slurry from the third reactor; delivering, after rinsing of the solid part with methanol, chloride-free potassium sulfate, and a combined filtrate and rinsings; a column receiving and distilling the combined filtrate and rinsings, delivering methanol back to the second reactor and to the filter and a concentrated solution of magnesium chloride; a fourth reactor, adapted to receive the concentrated solution of magnesium chloride, which crystallizes upon cooling, and to treat the concentrate with sulfuric acid, delivering hydrochloric acid and a residual mass; a collector, adapted to absorb the hydrochloric acid delivered form the fourth reactor; and a fifth reactor, adapted to collect and crystallise the residual mass from the fourth reactor, for recycling to the second reactor as magnesium sulfate heptahydrate.

The invention discloses an application of titanate substances to flame-retardant thermoplastic plastic as a flame retardant. A titanate substance serving as a nano inorganic oxide precursor can be dispersed in a polymer substrate well and can be hydrated to generate nano inorganic oxide in a polymer molecule segment when encountering with moisture in air, so as to form an interpenetrating polymer network with the polymer substrate; compared with a case where nanoparticle oxide is added directly, a method of adding the inorganic oxide precursor effectively reduces agglomeration, migration and separation of nanoparticles in the polymer substrate. The flame-retardant thermoplastic which is prepared from the titanate compound serving as the flame retardant is remarkably reduced in heat release rate, total heat release, smoke generation speed, total smoke generation amount and smoke factors, and the residual mass of carbon residues is greatly improved.

The invention provides a method for calculating residual hydrogen of a fuel cell hydrogen system. The method comprises the steps of: setting a moment count value as 1; obtaining respective temperatures in all the n hydrogen storage cylinders of the fuel cell hydrogen system and pipeline pressures in pipelines connected with a hydrogen storage component and s hydrogen supply component; determiningwhether the current moment count value is larger than 1 or not, and if yes, obtaining the pressure prediction variance and the pressure prediction value at the last moment, and calculating a gain coefficient; calculating a correction pressure and the mass of the residual hydrogen in each hydrogen storage cylinder; calculating the pressure prediction variance and the pressure prediction value at the current moment; and adding 1 to the moment count value, and recording the pressure prediction variance and the pressure prediction value at this moment. The method has the advantages that: the errorof the data of the pressure sensor of the hydrogen system is corrected by adopting a statistical online iterative calculation method, so that the calculation precision of the hydrogen residual mass of the hydrogen system of the fuel cell is improved.

A provided quantitative determination method for fiber content of viloft fiber and polyamide blended textiles comprises the following steps: S1, putting viloft fiber and polyamide blended textiles in a baking box with a constant temperature of 102-108 DEG C to bake to dry, then rapidly taking out and putting in a dryer to cool to room temperature, and weighing the mass of the blended textiles and recording as m0; S2, putting the blended textiles into formic acid with the mass concentration of 80%-88% or hydrochloric acid with the mass concentration of 20% according to the sample (g) to reagent (mL) bath ratio of 1:100-200, continuously shaking at 10-40 DEG C for 15-30 min; and S3, washing fiber indissolvable in formic acid or hydrochloric acid reagent in the step S2 with water to neutral, putting in a baking box with a constant temperature of 102-108 DEG C to bake to dry, rapidly taking out and putting in a dryer to cool to room temperature, and weighing the residual mass of the blended textiles and recording as m1. The dissolving temperature is controlled at 10-40 DEG C, because viloft fiber at the temperature shows relatively strong acid resistance, a final detection result is highly consistent with an actual value, and the method has extremely high accuracy.

The invention discloses hydrophilic polyurethane composite grouting liquid with high strength of a consolidation body. After being modified organically, nano silicon dioxide is added in raw materials, can be dispersed uniformly and cannot be agglomerated easily, while the performance of the traditional polyurethane grouting liquid is kept basically, the thermal decomposition temperature and the residual mass of the hydrophilic polyurethane composite grouting liquid are obviously higher than those of the traditional polyurethane grouting liquid, active modifiers such as modified calcined kaolin, glass fibers and bisphenol A epoxy resin are further added, various components are mutually dispersed uniformly and do not sink, while the viscosity of the composite grouting liquid is improved, the strength of the consolidation body is further improved, the hydrophilic polyurethane composite grouting liquid can be quickly injected and permeates in tiny gaps of drift sand or sludge to form the consolidation body with certain strength, and accidents such as sand permeation, roof fall and rib spalling in a tunneling process are prevented.

The invention discloses a method for predicting a soil-water characteristic curve VG (Van Genuchten) model on the basis of an NMR (Nuclear Magnetic Resonance) curve. Under known dry density, accordingto experiment data, a relationship curve, i.e., a magnetic resonance imaging curve of the soil mass relaxation time T2-semaphore S of the soil-water characteristic curve is obtained under the same dry density, a part which is smaller than an actual measurement residual mass moisture content is detected, and the obtained processed magnetic resonance imaging curve carries out fitting on the basis of the VG model of a classical soil-water characteristic curve model to obtain a fit parameter to obtain N groups of fitting parameters under N different dry densities to establish a prediction model of the soil-water characteristic curve parameter. Therefore, the boundedness of an indoor experiment is overcome, a great quantity of manpower and material resources can be saved, a new direction is provided for researching the soil-water characteristic curve of unsaturated soil, and the method has important scientific significance for developing the relevant mechanics and penetration theory of theunsaturated soil.

The present disclosure provides a high temperature-resistant silicone rubber. The silicone rubber comprises methyl vinyl silicone rubber, white carbon black, hydroxy silicone oil, hydrogen-containingsilicone oil, a heatproof additive and 2,5-dimethyl-2,5-di-(tert-butylperoxy)hexane. The heatproof additive added to the high temperature-resistant silicone rubber can significantly improve the residual quality of the silicone rubber at a high temperature, overcomes the disadvantage of poor compatibility between a commonly used heatproof additive and the silicone rubber, and maintains the originalmechanical properties of the silicone rubber.