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95 results about "Ashing" patented technology

Ashing is a test to deduce the amount of ash forming material present in a petroleum product so as to decide its use in certain applications. Ash-forming materials are considered to be undesirable impurities or contaminants.

Microwave heating type coal quality online analysis device and application thereof

The invention belongs to the field of coal quality analysis, and discloses a microwave heating type coal quality on-line analysis device and application thereof.The device comprises an on-line sample collecting and preparing module, a microwave heating module, a weight collecting module and an analysis control module, and the microwave heating module comprises a microwave drying cavity, a microwave devolatilization cavity and a microwave ashing cavity; each chamber is connected with a microwave temperature control unit for independent temperature control; the online sampling and sample preparation module is used for collecting coal from a coal conveying line in real time, crushing the coal into standard coal samples, and feeding the standard coal samples into the corresponding treatment chambers for microwave heating treatment; the microwave ashing cavity is further connected with an oxygen supply unit, and the oxygen supply unit is used for providing an oxygen-enriched environment for the microwave ashing cavity; the weight acquisition module is connected with the analysis control module and is used for acquiring the weight of the standardized coal sample before and after heating; and the analysis control module is used for controlling the microwave temperature control unit to adjust the temperature of the corresponding chamber and obtain various indexes of the standardized coal sample. According to the invention, the efficient and full-automatic microwave heating coal quality online sampling analysis effect can be realized.
Owner:SHANXI UNIV

Application of hydroxylamine compound cleaning fluid

The invention discloses application of a hydroxylamine compound cleaning solution. In particular to application of a hydroxylamine compound cleaning solution in cleaning plasma etched and ashed wafers. The hydroxylamine compound cleaning solution is prepared from the following components in percentage by mass: 1 to 30 percent of a hydroxylamine compound, 1 to 5 percent of a corrosion inhibitor, 0.1 to 5 percent of a chelating agent, 0.01 to 5 percent of a nonionic surfactant and 1 to 50 percent of a water-soluble organic solvent and water. The sum of the mass fractions of the components is 100%. The hydroxylamine compound cleaning fluid is safe and environment-friendly, solves the problem of high cost caused by fixed raw material sources, reduces the cost, and is safe and reliable.
Owner:SHANGHAI SINYANG SEMICONDUCTOR MATERIALS CO LTD

Method for detecting content of carbon black in master batch

The invention discloses a method for detecting the content of carbon black in master batch, which comprises the following steps: S1) weighing the master batch with the mass G into a reaction tube, adding methanol, a cosolvent and a catalyst, sealing, and heating for alcoholysis; s2) taking out the reaction tube, cooling to room temperature, opening a cover, pouring a solution in the reaction tube into filter paper with the mass of W0, flushing the reaction tube with ethanol, pouring the solution into the filter paper to completely transfer the solution, flushing filter residues with hot absolute ethanol, and drying the filter paper with the filter residues, wherein the mass of the dried filter paper and the filter residues is W1; s3) putting the dried filter paper with the filter residues into a crucible with the mass of W2, ashing, transferring the crucible into a muffle furnace, calcining, and weighing the mass of the crucible and the ash content as W3 after the weight is constant; and S4) calculating the carbon black content in the master batch according to the following formula: omega = (W1-W0) / G * 100%-(W3-W2) / G * 100%. According to the method, ash content in the detection result is removed, the accuracy is high, the test repeatability is good, the operation is simple, and the energy consumption in the detection process is low.
Owner:JIANGSU XUANDA POLYMER MATERIAL CO LTD

Method for recovering valuable components from high-copper-iron complex gold extraction broken carbon roasting slag

The invention relates to a method for recovering valuable components from high-copper and high-iron complex gold extraction broken carbon roasting slag. The method comprises the following steps: grinding and grading: grinding and grading a material to be treated into a fine material with the particle size of-0.074 mm accounting for 70%-80%; flotation decarburization is conducted, specifically, primary roughing is conducted on the fine material slurry, carbon-containing concentrate and tailings are obtained, and the carbon-containing concentrate is returned to an original roasting ashing system to be roasted again to obtain concentrate roasting slag; selective leaching of copper: feeding the tailings and the concentrate roasting slag into an ammonia-chlorine solution for pre-leaching to obtain copper-containing leaching liquid and leaching slag; first-stage preferential leaching is conducted, specifically, the leaching residues are fed into a cyaniding system to be subjected to first-stage preferential leaching, and a gold and silver pregnant solution and first-stage leaching residues are obtained; second-stage intensified leaching is conducted, specifically, the first-stage leaching residues are subjected to second-stage intensified leaching, and gold and silver pregnant solution and second-stage leaching residues are obtained; and recovery of element copper: conveying the copper-containing immersion liquid to a copper recovery system for distillation to obtain ammonia water and a copper hydroxide precipitate. According to the method, efficient comprehensive recovery of gold, silver and copper in the high-copper-iron complex gold extraction broken carbon roasting slag is achieved.
Owner:YUNNAN GOLD MINING GRP

High-temperature atmosphere firing device for detecting ash content of high-purity graphite

The invention provides a high-temperature atmosphere firing device for detecting the ash content of high-purity graphite. The high-temperature atmosphere firing device comprises a supporting frame, a heating furnace connected with the supporting frame, a dustproof hearth arranged in the heating furnace, a controllable exhaust chimney, a multi-point temperature detection module, a distributed gas supply module and a control system. Oxygen can be uniformly conveyed into the dustproof hearth from the bottom of the heating furnace through the distributed gas supply module, so that a high-purity graphite sample in the dustproof hearth is in a high-concentration oxygen atmosphere, and intermediate products in reaction are discharged in time through the controllable exhaust chimney, so that the inhibition effect of the intermediate products is reduced; the optimal ashing condition can be established by adjusting the temperature, the oxygen flow, the exhaust speed and the like, so that all the samples are in a rapid burning reaction state, the overall reaction efficiency is improved, the efficient and rapid burning effect is achieved, no-wind-feeling and high-flow oxygen supply of the distributed gas supply module can effectively avoid pollution among the samples, and the service life of the samples is prolonged. And the detection accuracy of the ash content of the high-purity graphite is ensured.
Owner:CHENZHOU COMMODITY QUALITY SUPERVISION & INSPECTION INST

An ashing method for an organochromium catalyst and its application

This invention provides an ashing method for organochromium catalysts, comprising the following steps: a mixture of an ashing aid and the organochromium catalyst is reacted in a sealed oxygen-containing atmosphere under the synergistic effect of microwaves and high frequency, with the temperature programmed to <350°C, to completely ashing the organic matter in the organochromium catalyst; wherein the ashing aid is selected from nitrates; and the reaction pressure is less than 20.0 MPa. This invention, by ashing under the combined action of an ashing aid and high frequency with microwaves, effectively and completely removes organic matter from organochromium catalysts at low temperatures. This method overcomes the shortcomings of existing organochromium catalysts, which suffer from volatilization losses during conventional ashing or wet digestion treatments. It offers advantages such as a wide range of sample amounts, high accuracy, and suitability for the analysis and detection of chromium and other elements in different organochromium catalysts.
Owner:PETROCHINA CO LTD

Dynamic Fouling and Slagging Trend Prediction Method for Biomass Ash Based on Changes in Ashing Temperature

The present invention discloses a method for predicting the dynamic fouling and slagging tendency of biomass ash based on the change of ashing temperature, which relates to the technical field of predicting biomass ash fouling and slagging, and includes: determining the sintering rate and sintering characteristic index of biomass ash at different temperatures; determining the melting characteristic temperature and melting characteristic index of biomass ash at different temperatures; determining the fixed-phase fouling and slagging index and volatile-phase fouling and slagging index during the ashing process of biomass ash at different temperatures; and determining the comprehensive fouling and slagging tendency of biomass ash. The beneficial effect of the present invention is that, based on the change rules of the melting characteristic index and ash sintering rate of biomass ash at different ashing temperatures, and simultaneously considering the distribution and allocation rules of alkali metal components in the fixed phase and volatile phase during the fouling and slagging process of biomass ash, it makes up for the deficiency of ignoring the melting characteristics and sintering characteristics of biomass ash in the prior art, and improves the accuracy and reliability of the prediction results of the dynamic fouling and slagging tendency of biomass ash at different ashing temperatures.
Owner:NORTHEASTERN UNIV CHINA

Resin composition, cured product, and display device or semiconductor device

The present invention addresses the problem of obtaining a cured product which has excellent diluent solubility and in which the contact resistance of an electrode after ashing is suppressed to be low. A resin composition containing the following components (a) to (c), the component (a) having a diamine residue represented by formula (1) in an amount of from 1 mol% to 80 mol% (inclusive) with respect to 100 mol% of all diamine residues contained in the skeleton of the resin of the component (a), and the component (c) having a diamine residue represented by formula (2) in an amount of from 1 mol% to 80 mol% (inclusive) with respect to 100 mol% of all diamine residues contained in the skeleton of the resin of the component (a). Component (a): at least one resin selected from the group consisting of polyimide precursors, polyimides, polybenzoxazole precursors, polybenzoxazoles, and copolymers thereof Component (b): a photosensitizer. Component (c): a solvent (in formula (1), R1-R8 each independently represent an alkyl group having 1-4 carbon atoms or a hydrogen atom, X each independently represents-CH2-,-C (CH3) 2-,-O-,-S-,-SO2-or a single bond, and p, q, r and s each independently represent an integer of 0 or 1 and represent a bonded part).
Owner:TORAY INDUSTRIES INC

Incineration closestool

The utility model relates to an incineration closestool which comprises a sewage receiving cavity, an incineration cavity and an ash receiving cavity which are arranged on a closestool body. A sewage inlet and an ash outlet are formed in the incineration cavity, the sewage receiving cavity in the open state communicates with the incineration cavity through the sewage inlet, and the incineration cavity in the open state communicates with the ash receiving cavity through the ash outlet; a magnetic heating part and an electromagnetic coil are arranged on the incineration cavity and correspond to each other, and a magnetic field generated by electrifying the electromagnetic coil enables the magnetic heating part to generate high temperature for incinerating excrement. According to the incineration closestool, excrement is heated and incinerated in an electromagnetic heating mode, the incineration area and the ashing matter collecting area are separated from each other, and therefore the incineration closestool has the advantages of being high in heating efficiency, low in energy consumption, easy and convenient to use and the like.
Owner:FOSHAN TUOFANG INTELLIGENT TECHNOLOGY CO LTD

Method for testing spacer paper for substrate glass

This invention relates to the field of substrate glass manufacturing and testing technology, and provides a method for testing the performance of spacer paper for substrate glass. The method includes: in a constant temperature and humidity clean environment, processing the testing equipment to constant weight; mixing and sampling multiple units of the spacer paper sample, and then transferring the samples to a constant-weight testing equipment for weighing; drying the samples at 105±2℃ to constant weight, and calculating the moisture content based on the mass difference before and after drying; and igniting the samples at 900±25℃ until completely ashed, and calculating the ash content based on the mass difference before and after ignition. This invention, through constant temperature and humidity operation and multi-unit mixed sampling, eliminates environmental interference and sampling bias, achieving continuous and accurate testing of moisture and ash content, and significantly improving the accuracy and repeatability of the test results.
Owner:虹阳显示(咸阳)科技有限公司

Filtering protection structure of fire-fighting smoke exhaust fan

The utility model discloses a filtering protection structure of a fire-fighting smoke exhaust fan, which relates to the technical field of smoke exhaust fans, and comprises a protection cylinder, a fixing frame is arranged in the protection cylinder, a fan assembly is arranged in the fixing frame, a metal wire mesh is detachably connected to the inner wall of one side of the protection cylinder, and the inner wall of the other side of the protection cylinder is provided with an air inlet. A first fixing ring is fixedly installed at one end of the protection cylinder, a second fixing ring is detachably connected to the outer surface of the first fixing ring, and through cooperation between a metal wire mesh and a rotating plate, when the smoke exhaust fan is started, the metal wire mesh can reduce combustible ashing substances sucked into the pipeline; when the smoke exhaust fan is started, the rotating plate can be opened under the action of wind power and opened to the maximum angle under the action of wind power, at the moment, smoke can be normally exhausted, the service life of the smoke exhaust fan is not prone to being affected by the outside, the function of filtering and protecting the smoke exhaust fan is achieved, and the service life of the smoke exhaust fan is prolonged.
Owner:ANQING DAGUAN DISTRICT FIRE RESCUE BRIGADE (ANQING DAGUAN DISTRICT FIRE RESCUE BUREAU)

A method for determining the chemical composition of carbide slag

This invention discloses a method for determining the chemical composition of calcium carbide slag. The method first removes the moisture by ashing the calcium carbide slag, then digests it with concentrated nitric acid and hydrofluoric acid, followed by digestion with saturated boric acid. Finally, based on a standard solution, the concentration of each component is obtained by comparing the test solution and the blank solution, and then converted into the content of oxides. The experimental results show that the recovery rate of calcium oxide is over 96%, and the accuracy and precision meet the standard requirements.
Owner:XIAN THERMAL POWER RES INST CO LTD

Recovery device and recovery method for ashing waste precious metal powder

The invention provides an ashing waste precious metal powder recovery device and a recovery method thereof, and relates to the technical field of precious metal powder industrial recovery. The recovery device comprises a waste conveying and feeding system, an air blower, a two-section type combustion ashing furnace, a tail gas absorption system, acid leaching gold dissolving equipment, a solid-liquid separator, powder reduction equipment and the like. According to the recovery method, a two-section ashing oxygen-controlled combustion strategy is adopted, efficient recovery of gold, silver, platinum and other precious metal products in wiping cloth, fiber filter materials, gloves and other ashing waste generated in the production process of precious metal powder and slurry is achieved, and meanwhile the industrial solid waste treatment problem is solved.
Owner:CHANGCHUN GOLD RES INST

Radioactive combustible solid waste treatment device and method

The invention relates to a radioactive combustible solid waste treatment device and method. The device comprises a gasification furnace, an air mixing system, a flue gas recirculation system, a steam mixing system, a combustion furnace and a stored ash ashing device. Materials are subjected to various reactions in the gasification furnace to form gas products, liquid tar and solid residues (bottom ash), the gas products enter the combustion furnace to be fully combusted, in the process, flue gas mixed with water vapor is introduced into the gasification furnace from the position below a fire grate of the gasification furnace, a material layer and a pyrolysis gas layer through a flue gas recirculation system, and the gas products are fully combusted. The water vapor source comprises two parts, namely water vapor generated by combustion of pyrolysis gas in the combustion furnace and water vapor supplied from the outside. After the water vapor enters the cracking gasifier, the water vapor and coke are subjected to water gas reaction on a coke burning layer, so that the waste treatment effect is further improved; the cracking layer participates in the material cracking process, so that the cracking rate is increased, further cracking of macromolecular products is promoted, and generation of heavy tar is reduced.
Owner:CHINA INST FOR RADIATION PROTECTION

Tube and method for manufacturing same

The invention relates to a pipe and a method for manufacturing the same. A tube formed from a molding material which contains a fluororesin having melt processability and which has a metal content of 40 ng / 1 g or less as measured by ashing, a Na content of less than 1 ng / 1 g as measured by ashing, and a K content of less than 1 ng / 1 g as measured by ashing, the fluororesin is at least one type selected from the group consisting of tetrafluoroethylene / perfluoro (alkyl vinyl ether) copolymers and tetrafluoroethylene / hexafluoropropylene copolymers, and the melt flow rate of the fluororesin is 1 g / 10 minutes to 6 g / 10 minutes.
Owner:DAIKIN INDUSTRIES LTD

AI improvement method for coal ash content detection based on laser firing method

The invention discloses an AI improvement method for coal ash content detection based on a laser firing method, which comprises the following steps of: identifying whether a coal sample fired by laser is coked or not and the non-ashing ratio of the coal sample when the coal sample is not coked by utilizing a special multi-mode large model obtained by training and a picture of the coal sample fired by the laser; and outputting a corresponding text description, inputting the coal sample non-ashing proportion which does not reach or exceed a threshold value and is output by the special multi-mode large model into a programmed ash content calculation model Aad = (m2-m1 * a%) / (m1-m1 * a%), and calculating to obtain the ash content. The method solves the problem of low ash content determination precision of the existing laser firing method for detecting the ash content, and has the advantages of high detection speed, high precision and the like.
Owner:山西品东智能控制有限公司

Silicon dioxide determination method capable of resisting organic silicon matrix interference

The invention relates to the field of analytical chemistry and material testing, and mainly relates to a silicon dioxide determination method resistant to organic silicon matrix interference. The invention relates to an organosilicon matrix interference-resistant silicon dioxide determination method, which comprises: introducing an inert atmosphere, and removing oxygen; in the inert atmosphere environment, the temperature of the sample is gradually increased to 500-850 DEG C for treatment; the atmosphere is switched from the inert atmosphere to the oxidizing atmosphere, and treatment continues to be conducted at the temperature of 500-850 DEG C; and cooling and weighing to obtain the final residual mass percentage, namely the percentage of the added silicon dioxide in the sample. According to the application, through an innovative'inert pyrolysis-oxidation sweeping 'procedure, the principle defect that an organic matrix is misjudged as functional silicon dioxide by a traditional muffle furnace ashing method is fundamentally overcome.
Owner:超滑科技(佛山)有限责任公司

Reworking method of CIS wafer

ActiveCN120769581AWaferPhysical chemistry
The invention discloses a reworking method of a CIS wafer, and the method comprises the steps: firstly carrying out the pretreatment of an exposed photoresist layer on the surface of the to-be-reworked CIS wafer through employing a fluoroalcohol compound solution, can effectively prevent the surface of the photoresist layer from forming a compact carbonization layer in a subsequent ashing process, and facilitates the improvement of the etching efficiency and the etching effect; and then the pre-treated exposed photoresist layer is sequentially ashed, soaked, stripped and cleaned, so that the exposed photoresist layer on the surface of the CIS wafer can be quickly and completely removed, and pollutants generated in the treatment process can be effectively removed while the CIS wafer is effectively protected. The method has the advantages of being simple in process, convenient to operate, low in cost, high in removal efficiency, good in removal effect, small in damage to the CIS wafer and the like, improvement of the remanufacturing efficiency and the remanufacturing effect of the CIS wafer is facilitated, market competitiveness of products can be improved while product defects are reduced, the yield is increased and the cost is reduced, and the method is high in use value and good in application prospect.
Owner:NEXCHIP SEMICON CO LTD

Preparation method of anti-fracturing electrolytic rolled copper foil

The invention relates to a preparation method of an anti-fracturing electrolytic rolled copper foil, which comprises the following steps: (1) adding an additive into a copper sulfate electrolyte, and electrolyzing to obtain a copper foil; wherein the additive is polyethylene glycol 1000; (2) putting the copper foil obtained in the step (1) into a bell furnace for high-low temperature circulating heat treatment, and taking out the copper foil after the copper foil is cooled to room temperature; (3) carrying out multi-pass finish rolling on the copper foil obtained in the step (2); and (4) the finish-rolled copper foil is sequentially subjected to degreasing treatment to remove oil stains on the surface, pure water washing, acid pickling to remove surface oxides, roughening growth of copper nodules, solidification and fixation of the copper nodules, blackening nickel plating, ashing zinc plating, passivation chromium plating and surface silane coupling agent coating treatment, and the anti-fracturing electrolytic rolled copper foil is obtained. The technical problem that in the prior art, rolling treatment is conducted after a grain refining mode is adopted in the electrolysis process, and pressing cracking is likely to happen when rolling is conducted is solved.
Owner:JIUJIANG TELFORD ELECTRONICS MATERIAL CO LTD +1

Testing method for determining content of metal elements in chlorinated butyl rubber plug

The invention relates to a testing method for measuring the content of metal elements in a chlorinated butyl rubber plug, and belongs to the technical field of chlorinated butyl rubber plug testing. Comprising the following steps: S1, cutting a rubber plug into pieces, S2, adding concentrated sulfuric acid, S3, putting the rubber plug into a muffle furnace, S4, setting the temperature of the muffle furnace, S5, heating and cooling the muffle furnace, S6, observing an ashing state, S7, carrying out secondary ashing, S8, transferring a sample to a constant volume, S9, transferring the sample to a constant volume, and S10, carrying out measurement on a machine. Volatile metal chlorides and oxides are converted into sulfates with stable chemical properties by concentrated sulfuric acid, and the sulfates are not volatile or decomposed even at the high temperature of 600 DEG C, so that the total amount of metal elements is completely locked; according to the present invention, the accurate ashing at 600 DEG C can completely remove the organic matrix, the interference of the organic matter is avoided, the loss of the metal element is ensured, the determination value of the same standard rubber sample is 0.048-0.052 mg / kg, and the accuracy is significantly improved.
Owner:CONTINENTAL PHARMACEUTICAL TECHNOLOGY (SHANGHAI) CO LTD

Molded body and tube for transferring high purity chemical agent

[Problem] The present invention addresses the problem of providing a molded body which can be used as a tube for transferring a high purity chemical agent. [Solution] The present invention provides a molded body which comprises a liquid contact layer (A) having a liquid contact surface, and a liquid non-contact layer (B) having a liquid non-contact surface, wherein: the liquid contact layer (A) contains a tetrafluoroethylene / fluoroalkyl vinyl ether copolymer (a), and the total amount of Na, Mg, K, Ca, and Fe dissolved into hydrofluoric acid from the liquid contact layer (A) is 10 ng / cm2 or less; and the liquid non-contact layer (B) contains a tetrafluoroethylene / fluoroalkyl vinyl ether copolymer (b), and the total metal content of Na, Mg, K, Ca, and Fe in the liquid non-contact layer (B) measured by an ashing method is higher than the total metal content of Na, Mg, K, Ca, and Fe in the liquid contact layer (A) measured by the ashing method.
Owner:DAIKIN INDUSTRIES LTD

Coal sample ashing degree control method and system based on laser Raman spectrum

The invention relates to the technical field of detection and enrichment of minerals in coal, and particularly provides a coal sample ashing degree control method and system based on a laser Raman spectrum. The method comprises the following steps: acquiring a laser Raman spectrogram of a coal sample in real time in an ashing process of the coal sample; determining ashing process characterization parameters of the coal sample based on the laser Raman spectrogram; turning over the coal sample based on a comparison result of the ashing process characterization parameter and the dynamically adjusted trigger threshold value; when it is judged that the ashing process characterization parameter reaches the preset completion standard, an ashing completion signal is output. The system comprises a coal sample ashing unit, a laser Raman instrument and a controller. The ashing unit comprises a sample bin, a coal sample bearing piece and a vibration device coupled with the coal sample bearing piece. An optical probe of the laser Raman instrument penetrates through the bin wall, and a light path of the optical probe is aligned with the sample area. And the controller is electrically connected with the laser Raman instrument, the vibration device and the sample bin. Therefore, closed loop of real-time monitoring, automatic judgment and automatic execution is realized, the necessity of manual intervention is thoroughly eliminated, the automation of the whole process is realized, the ashing efficiency can be improved, and the analysis of minerals and key metals can be realized.
Owner:SHENHUA SHENDONG POWER +1

Method for improving deposition-induced CD imbalance using spatially selective ashing of carbon-based films

A method for forming features on a wafer using a carbon-based deposit is provided. The carbon-based deposit is preconditioned, wherein the preconditioning results in non-uniform removal of some of the carbon-based deposit. An oxide deposit of a silicon oxide-based material is deposited by an atomic layer deposition process, wherein the depositing of the oxide deposit results in non-uniform removal of some of the carbon-based deposit that is complementary to the non-uniform removal of some of the carbon-based deposit caused by the preconditioning.
Owner:LAM RES CORP

Method for detecting content of alumina in aluminum-manganese-calcium alloy

ActiveCN117706021Bsolve effective separationSolve the detection needs of alumina contentChemical analysis using titrationMaterial electrochemical variablesManganeseAlloy
This invention discloses a method for detecting the alumina content in aluminum-manganese-calcium alloys, mainly solving the technical problem that existing methods cannot accurately and rapidly detect the alumina content in aluminum-manganese-calcium alloys. The technical solution is as follows: a method for detecting the alumina content in aluminum-manganese-calcium alloys, comprising: 1) sample preparation: after removing the oxide layer on the sample surface, the sample is placed in a reagent bottle containing organic solvent for storage; 2) alumina extraction from the sample: first, alumina is extracted from the sample by electrolysis, the sample is placed in an electrolytic cell for electrolysis, the sample is the anode, a platinum electrode is the cathode, and a saturated calomel electrode is the reference electrode; 3) detection of alumina in the sample: the filter membrane and filter material from step 2) are placed in a platinum crucible, and the filter membrane is removed by high-temperature ashing; 4) calculation of the mass percentage of alumina in the aluminum-manganese-calcium alloy. The method of this invention for determining the alumina content in aluminum-manganese-calcium alloys has a relative standard deviation (RSD) of less than 3%, indicating good precision, accuracy, and reliability of the detection data.
Owner:SHANGHAI MEISHAN IRON & STEEL CO LTD

Preparation method of ash sample of ultra-low ash coal

The invention discloses an ash sample preparation method of ultra-low ash coal, which comprises the following steps: (1) drying pretreatment: putting a coal sample into drying pretreatment equipment, drying according to a preset drying condition, removing external moisture in the coal sample, and enabling the coal sample to be burnt to reach a dry state; (2) firing treatment: placing the cupel filled with the coal sample in firing equipment, and performing firing treatment to ash the coal sample to obtain an ash sample; and (3) cooling, grinding and screening: after firing is finished, taking out the cupel from the firing equipment, cooling, transferring an ash sample into grinding equipment, grinding, and screening the ash sample with a preset particle size to obtain a coal ash sample. According to the method, the remarkable breakthrough that the single-time coal ash preparation efficiency of single equipment is improved by 300% is achieved. The strict specification and optimal design of the ash sample preparation method of the ultra-low ash coal provide a solid guarantee for the quality of the coal ash sample. The efficiency is greatly improved, the quality is stably guaranteed, and the comprehensive cost of coal ash preparation is reduced.
Owner:XINJIANG TIANCHI ENERGY SOURCES CO LTD +1

Heavy oil pretreatment equipment for heavy oil detection and treatment method thereof

The invention relates to the technical field of heavy oil detection, and particularly discloses heavy oil pretreatment equipment for heavy oil detection and a treatment method of the heavy oil pretreatment equipment. A muffle furnace is mounted on one side of the top end of the detection table, a combustion mechanism is mounted at the top end of the muffle furnace, a stirring mechanism is mounted at the top end of the combustion mechanism, a smoke exhaust mechanism is mounted at one end of the muffle furnace, and an atomic absorption spectrometer is mounted on the other side of the top end of the detection table; the combustion mechanism comprises an isolation plate, a positioning groove, a nickel crucible, an electric furnace, an adjusting groove and a storage groove; according to the method, the heavy oil sample in the nickel crucible is ignited to be primarily combusted, then the combusted sample can be further combusted and ashed through the muffle furnace, the ashed sample is extracted through the electric furnace, and finally, the content of sodium ions can be determined by utilizing the atomic absorption spectrometer, so that interference of organic matters in the sample on determination is avoided, and the determination accuracy is improved. And the accuracy and authenticity of sodium ion determination are ensured.
Owner:内蒙古伊诺新材料有限公司

Method for the artificial ashing of a particle filter

Method for artificially ashing a particulate filter (3) downstream of an internal combustion engine in the exhaust system of a motor vehicle, wherein, to avoid depth filtration, an ash layer (A) is applied as a filter cake to the surface of the channel wall (2) of the particulate filter (3) in its new condition, characterized in that a direct coating of the wall surface or an internal coating of the particulate filter (3) is carried out with an ash former which is burned off during the operation of the motor vehicle.
Owner:DR ING H C F PORSCHE AG

Inner cavity structure of rapid ashing furnace

The utility model provides an inner cavity structure of a rapid ashing furnace, which relates to the technical field of ashing furnaces and comprises an ashing furnace body, two moving grooves are formed in the inner surface wall of the ashing furnace body, strip-shaped blocks are movably inserted into the inner surface walls of the two moving grooves, a placing plate is fixedly mounted between one sides of the outer walls of the two strip-shaped blocks, and the other sides of the outer walls of the two strip-shaped blocks are fixedly connected with the placing plate. And two positive and negative motors are fixedly mounted on one side of the inner wall of the ashing furnace body. According to the device, two forward and reverse motors are started to drive two moving columns to move back and forth on two guide rods and two threaded rods respectively under the action of two guide rods and two limiting blocks, and then the two moving columns drive two connecting blocks and a placing plate to move back and forth under the action of two moving grooves and two strip-shaped blocks; and therefore, a worker can conveniently take and place objects after opening the visual door, the worker is prevented from making contact with a high-temperature environment, the risk that arms of the worker are scalded is reduced, and the using effect of the ashing furnace is improved.
Owner:TAIZHOU TIANDA ELECTRICAL EQUIP CO LTD

Treatment system and treatment method for radioactive biological waste

The invention provides a treatment system for radioactive biological waste, which comprises a pretreatment unit, an ashing heating unit and a tail gas treatment unit, and is characterized in that the pretreatment unit is configured to perform crushing treatment on the radioactive biological waste and comprises a crushing unit and a conveying unit; the ashing heating unit is configured to perform microwave sterilization and microwave ashing heating on the crushed radioactive biological waste by using a microwave technology; the tail gas treatment unit is configured to treat flue gas generated by the ashing heating unit in the ashing heating process, and the treatment comprises catalytic oxidation, cooling, adsorption and harmless tail gas emission of the flue gas. The invention further provides a method for treating the radioactive biological waste by using the treatment system. The radioactive biological waste can be rapidly and safely treated through the system and the method.
Owner:CHINA INST FOR RADIATION PROTECTION

An apparatus and process for gasification and ashing of carbonaceous organic material

The application provides a device and a process for gasification and ashing of carbon-containing organic matter, and relates to the technical field of carbon-containing organic matter treatment. The device comprises a cylindrical furnace body, a cylindrical shaft vertically arranged in the furnace body, and multiple layers of furnace beds perpendicular to the cylindrical shaft. Each of the furnace beds is circumferentially provided with a hollow rotating rake and a magnetic force generator. The rotating rake is in communication with the cylindrical shaft, and the gap between the rotating rake and the magnetic force generator in the furnace bed is provided with a bed of piezoelectric material. A multistage and multipole magnetic field with a temperature of less than 500 DEG C is formed in the device. At this time, oxygen molecules are ionized to form plasma, and the reaction capacity is greatly increased. Meanwhile, a large amount of electrons are released from the pyroelectric material. In a magnetic field with a strength of 0.1-0.5 T, the electrons continuously and orderly pour down the carbon-containing organic matter like a waterfall at a speed of 1.43-3.19 x 10 3 m / s, so that the cohesion of the organic matter is seriously weakened and gradually decomposed, and the gasification and ashing processes are completed.
Owner:LINGHANG GUOCHUANG RESEARCH INSTITUTE CO LTD