432 results about "Product standard" patented technology

A method for verifying correctness of an Information Technology (IT) structure instance D of an IT structure R, a method for detecting an unauthorized change in an operating instance X of an IT structure R, a method for verifying conformance of an IT structure to an IT delivery environment, associated computer program products, and associated processes for integrating computing infrastructure. The method for verifying correctness of an IT structure instance D determines whether a reverse specification RD for D differs from R. The method for detecting an unauthorized change in an operating instance X of an IT structure R determines whether authorized changes in R have occurred. The method for verifying conformance of an IT structure to an IT delivery environment verifies compliance of the IT structure relating to: product standard compliance, compliance of software elements of the IT structure primitive composition, software application type compliance, and network traffic compliance.

The invention discloses a method for preparing light calcium carbonate and co-producing ammonium sulfate from phosphogypsum, which comprises the steps of: firstly, converting phosphogypsum into a soluble calcium ion solution through phase transfer reaction; secondly, adding a carburizer in the soluble calcium ion solution, settling and separating to obtain calcium carbonate and filtrate; and thirdly, cooling and crystallizing or evaporating the filtrate to obtain the ammonium sulfate. The invention has the advantages of short process procedure and no need of strong acid leaching and twice carbonization, and avoids the secondary pollution of CO2 to the environment; and the prepared light calcium carbonate accords with the requirement on national corresponding product standards and lays the research foundation for the industrialized massive production.

The invention relates to a green Chinese traditional medicine feed for feeding livestock and poultry, belonging to the rural area stock raising field. The feed is characterized in that the feed is prepared by the mixing of bean pulp of cooked soybean, rape seed cake, cotton cake, fish meal, bone meal, shellfish powder, umbilicus pulp of corn, urea, multiplex vitamin, magnesium sulplate, sodium bicarbonate, Chinese traditional medicines of angelica, tuber fleeceflower, notoperygium root, dried tangerine peel, ledebouriella root, radix codonopsis pilosulae, medicated leaven, rmalt, atractylodes rhizome, Chinese date, milkvetch root, liquorice, prepared rhizome of rehmannia, Chinese goldthread, mucuna macrocarpa, chuanxiong rhizome, frankincense, radix salviae miltiorrhizae, yellow-corktree bark, kuhseng, pine branch, hawkthorn, ginger powder, Chinese anise and carrot powder, micro elements of copper, iron, zinc, manganese, selenium and potassium and amino acids of methionine and threonine. The invention is a green Chinese traditional medicine feed for livestock and poultry, can make all stock raising animals such as pigs, cattle, sheep and poultries absorb nourishments in high efficiency and improve the capability of resisting viruses and bacteria, and can prevent illness and plague; moreover, the meat of the animals fed by the feed meets the national green meat product standard.

The invention relates to a method for preparing industrial grade and food grade phosphoric acid by decomposing low grade phosphate rocks with hydrochloric acid. The method comprises the following processing steps: (1) decomposing phosphate rock powder with hydrochloric acid; (2) extracting to remove iron; (3) preparing dilute phosphoric acid; (4) preparing industrial grade phosphoric acid; and (5) preparing food grade phosphoric acid. Food grade phosphoric acid can be prepared only by adding deep defluorination process on the basis of the preparation steps of industrial grade phosphoric acid. The deep defluorination process adopts vacuum steam stripping process and the processing conditions are as follows: the vacuum degree is 0.075-0.090MPa, and the temperature is 95-110 DEG C. Industrial grade phosphoric acid prepared by the method of the invention meets the super grade or first-class product standards of GB / T 2091-2008; and food grade phosphoric acid meets the standards of GB 3149-2004.

Methods for forming calibration standards for an inspection system and calibration standards are provided. One method includes scanning a first and a second specimen with an optical system. Master standard particles having a lateral dimension traceable to a national or international authority or first principles measurements are deposited on the first specimen. Product standard particles are deposited on the second specimen. In addition, the method includes determining a lateral dimension of the product standard particles by comparing data generated by scanning the two specimens. One calibration standard includes particles having a lateral dimension of less than about 100 nm deposited on a specimen. A distribution of the lateral dimension has a full width at half maximum of less than about 3%. The uncertainty of the lateral dimension is less than about 2%. Therefore, the standard meets the requirements for the 130 nm technology generation of semiconductor devices.

The invention relates to the technical field of chemical engineering, and particularly relates to a production method for diammonium hydrogen phosphate. A diammonium hydrogen phosphate product is prepared by subjecting a high pure urea phosphate solution and ammonia to a double decomposition reaction, reacting for 20-60 min under stirring and at a temperature of 50-80 DEG C by controlling a pH value at 7.8-8.2. Physical and chemical indexes of the diammonium hydrogen phosphate product are as follows: the total nutrient content of diammonium hydrogen phosphate is higher than 74%; the content of total nitrogen is 21.02-21.20%; the content of phosphorus pentoxide is 53.0-53.52%; moisture content is 0.25-0.32%; the content of water insoluble substances is 0.087-0.096%; and the content of fluoride is 0.1-0.14%. The diammonium hydrogen phosphate product fully meets an industrial first level product standard.

The invention relates to a acidified corrosion inhibitor for oil well and preparation method thereof. The preparation has the steps of: firstly synthesizing imidazoline intermediate body, carrying out quaternization reaction with benzyl chloride, and then compounding generated quaternary ammonium salt and propiolic alcohol according to mass ratio 3:1 for obtaining the product. 0.4% (mass percentage content) of present corrosion inhibitor in 15% HCl medium has obvious inhibition for corrosion of N80 carbon steel. The corrosion rate is 0.70 g / mh after 4h of corrosion at 60 DEG C, the corrosion inhibition efficiency thereof can reach to 99.39%; the corrosion rate is 1.44 g / mh after 4h of corrosion at 90 DEG C, which is superior to oil and gas industry standard of the People's Republic of China SY / T5405-1996 corrosion evaluating indicator first grade product standard (at 60 DEG C, first grade product standard is 2-3g / mh; at 90 DEG C, first grade product standard is 3-4g / mh).

The invention relates to a double bubble blow-molding film molding method of polyester heat-shrinkable film, belonging to the processing field of polymer materials. Polyester material is fed into a single-screw extrusion machine to carry out plasticizing extrusion after being dried, and a first film bubble is obtained after being blew by a blowing mould ram head, the first bubble is formed into a first bubble double-bending film through a first gable and a first pull roll, and secondary blowing is carried out to obtain a second film bubble for quenching molding after secondary heating is carried out to be in elastomeric state between Tg and Tf (Tg being a vitrification temperature, and Tf being a fusion temperature) through a second pull roll and a heating device, a second bubble double-blending film is formed through a second gable and a third pull roll and lastly taken up to obtain the polyester heat-shrinkable film. Compared with the existing flat film stretching method, the invention has the characteristics of small equipment investment, easy regulation for product standard and strong flexibility, and is applied to heat-shrinkable extension type label or goods package of containers.

A method for verifying correctness of an Information Technology (IT) structure instance D of an IT structure R, a method for detecting an unauthorized change in an operating instance X of an IT structure R, a method for verifying conformance of an IT structure to an IT delivery environment, associated computer program products, and associated processes for integrating computing infrastructure. The method for verifying correctness of an IT structure instance D determines whether a reverse specification RD for D differs from R. The method for detecting an unauthorized change in an operating instance X of an IT structure R determines whether authorized changes in R have occurred. The method for verifying conformance of an IT structure to an IT delivery environment verifies compliance of the IT structure relating to: product standard compliance, compliance of software elements of the IT structure primitive composition, software application type compliance, and network traffic compliance.

The invention relates to a method of combined production of multiple phosphates and a phosphate fertilizer from low grade phosphate ore. The method comprises the following steps: decomposing low grade phosphate ore powder by using hydrochloric acid to obtain an extract liquid containing calcium dihydrogen phosphate and calcium chloride; neutralizing the extract liquid by using ammonia by two segments to respectively obtain fertilizer-grade potassium dihydrogen phosphate and feed-grade calcium hydrogen phosphate, carrying out reaction on the neutralization liquid from the two segments and potassium sulfate and / or potassium bisulfate, and concentrating a filtrate to prepare a great amount of element water soluble fertilizers, or adding low molecular weight ammonium polyphosphate into the filtrate to prepare a suspended water soluble fertilizer. According to the method disclosed by the invention, by utilizing the characteristic of high decomposition rate by extracting phosphate ores by hydrochloric acid, with the combination of the technical characteristics of different phosphates and phosphate fertilizer products and different product standard requirements, the process technical requirements among the products are effectively jointed with one another, and the products including the feed-grade calcium hydrogen phosphate, the fertilizer-grade potassium dihydrogen phosphate, the water soluble fertilizer and gypsum whiskers are in combined production, so that the production process technology of each product is simple and feasible, phosphorus, calcium, magnesium and fluorine in the phosphate ores are fully utilized and the production cost of each product is also lowered.

The invention discloses a rapeseed quality non-destructive testing method and a device based on a near infrared spectrum technology. For the device, a sample chamber is inserted inside an integrating sphere, an incident light source, the sample chamber and a tester are integrated on a casing of the integrating sphere by fully utilizing the structural characteristics of the integrating sphere, andthe device comprises a spectrum signal collection device, a microcomputer and a result display device; and the method comprises the following steps of: transmitting received spectrum signals into themicrocomputer by the tester at the stage of rapid testing through building a correlation model of such quality indexes as moisture content, fat content and the like of rapeseeds and corresponding spectrum signals; and calling model parameters of corresponding quality by the microcomputer and performing calculation to obtain such quality indexes as the moisture content, fat content and the like ofthe rapeseeds so as to realize the non-destructive testing of quality of rapeseeds. The invention has the advantages of high testing accuracy, good result consistency, high automatic degree and the like, not only provides monitoring basis for acquisition process of primary products, but also further creates conditions for standardized grades of primary products based on quality.

The invention relates to an electronic product quality automatic detection method based on a knowledge graph, and belongs to the field of electronic product quality detection and knowledge graphs. Themethod comprises the steps of constructing a domain knowledge graph and realizing a quality detection method; constructing a product domain knowledge graph through related standard literature and technical specification of the electronic product. The electronic product quality detection process is detected from four aspects. The process comprises the steps of adopting an ontology modeling methodto manage a mode layer of the knowledge graph; constructing a data layer on the basis of the mode layer; extracting entities and entity relationships from a plurality of heterogeneous data sources byadopting a Bi-LSTM + Attention + CRF method. The data fusion generally adopts a similarity calculation method. A data layer stores knowledge in a Neo4j graph database by taking facts as units. The product quality detection is carried out by utilizing a product standard domain knowledge graph, and a front-end module is added and is used for directly querying quality detection data.

The invention relates to a method for producing propylene glycol methyl ether acetate. The method is characterized in that a reactive kettle made of an acid-resisting material is applied to a reactive fractionating tower and the front passage of a material kettle on the lower part of the reactive fractionating tower; under the existence of a catalyst, when the number of moles of propylene glycol methyl ether is excessive compared with that of the acetic acid, the esterification is carried out concentratively in the reactive kettle; the obtained product and the unreacted material are evaporated and pass an acid catcher so that the acidic catalyst with a high boiling point is collected in liquid phase; the material of gas phase enters the reactive fractionating tower through a material inlet; an entrainer is added at the upper part of the reactive fractionating towel so as to remove the water in the material by azeotropy; under the action of the layered solid acid catalyst, the residual acetic acid in the material continues to react at the reaction section of the lower part of the material inlet of the reactive fractionating towel so that the material finally dropped in the material kettle of the reactive fractionating towel has no acidic compositions, thus avoiding the corrosion on the equipment in the subsequent separating and refining process; and the obtained product has low acidity and completely meets the requirement of the product standard.

The invention provides a method for preparing a potash magnesium sulphate fertilizer by utilizing potassium-bearing sulfate mineral, which takes the potassium-bearing sulfate mineral obtained by solarization of sulphate type salt lake potassium-containing brine water as a raw material to prepare potash magnesium sulphate fertilizer products in accordance with national potash magnesium sulphate fertilizer product standard, through processes such as crushing, grinding ore, decomposing and converting, floatation and separation, secondary pulp washing and so on. The method utilizes decomposing mother liquor and secondary pulp washing liquid to decompose raw material ores, the circulating utilization ratio of the decomposing mother liquor is more than or equal to 80 percent, and the circulating utilization ratio of the secondary pulp washing liquid reaches 100 percent, thereby improving yield of potassium, reducing water amount for decomposition and reducing the water consumption of ton-product by 30 to 70 percent compared with other methods for producing the potash magnesium sulphate fertilizer. The whole production process is carried out at normal temperature and pressure, which reduces energy consumption; and the quality of the potash magnesium sulphate fertilizer products meets or exceeds national standard (GB / T20937-2007) for potash magnesium sulphate fertilizer qualified products.

The invention discloses a method for preparing light calcium carbonate and magnesium oxide from dolomite. The method comprises the following steps: firstly, calcining and slaking the dolomite to obtain a slaking liquid, converting calcium hydroxide in the slaking liquid to a soluble calcium ion solution through a phase-transfer reaction, meanwhile filtering out magnesium hydrate filter cakes containing impurities, feeding CO2 into the soluble calcium ion solution, precipitating and separating to obtain calcium carbonate and a filter liquor, pulping and carbonizing the magnesium hydrate filter cakes containing impurities to obtain a magnesium bicarbonate solution, then performing a pyrolytic reaction to obtain basic magnesium carbonate, and calcining to obtain light magnesium oxide. The method is simple in technical process and low in energy consumption without strong acid to leach and addition of an impurity removing precipitator, the calcium and magnesium separation effect is good, a common carbonization liquid-solid-gas three-phase reaction is avoided, the reaction condition is easily controlled, and prepared light calcium carbonate accords with demands of national corresponding product standard and lays research basis for industrial scale production.

The invention discloses a power lithium ion battery all metal recycling and cyclic utilizing method. Waste lithium ion batteries serve as raw materials, the disassembling-screening and roasting procedures are adopted for separating battery pole powder from other parts in the batteries, then, acid leaching is conducted, and leaching liquid containing cobalt, nickel, manganese and lithium is obtained; through extraction, separation and purification of cobalt, nickel, manganese and lithium are achieved, battery-level cobaltous sulfate, nickel sulfate and manganese sulfate are obtained, then, lithium-sodium separation is conducted, and lithium carbonate and sodium sulfate products are obtained through lithium deposition and concentration. The power lithium ion battery all metal recycling and cyclic utilizing method is green and efficient, danger waste generation is avoided, and large-scale production can be achieved. Various valuable metals are systematically recycled from the waste powerlithium batteries, according to the recycling rates, Co is larger than 95%, Ni is larger than 95%, Mn is larger than 98%, Li is larger than or equal to 94%, and the water cyclic utilization rate is larger than 95%. Nickel sulfate liquid, cobaltous sulfate liquid, manganese sulfate liquid and lithium carbonate obtained through the power lithium ion battery all metal recycling and cyclic utilizing method meet the battery level product standard.

The invention discloses an arsenic-free low-expansion black and transparent microcrystalline glass. The base components of the microcrystalline glass comprise SiO2, Al2O3, Li2O, CaO, MgO, BaO, ZnO and Na2O+K2O, and the microcrystalline glass also comprises SnO2, CeO2, and MnO or NH4Cl as a clarificant, TiO2 and ZrO2 as a nucleation agent and V2O5 as a colorant. The use of SnO2+CeO2+MnO (or NH4Cl) to substitute As2O3 in the invention ensures good fusing and clarification effects without changing the fusing principle or under a condition that the fusing temperature is not increased, so the microcrystalline glass produced in the invention has the advantages of non-toxicity, environmental protection and high quality, and all the indexes of the physical and chemical performances of the microcrystalline glass accord with international product standard requirements.

The invention discloses a metal canned product quality on-line detection method based on sound frequency-spectrum fitting. The method comprises the following steps: applying excitation to the detected metal canned product to vibrate the product; acquiring the sound generated by the vibrations by using a microphone, sampling the acquired sound signal to obtain a digitized sound signal; processing the sound signal to obtain a sound signal frequency spectrum; carrying out curve fitting on the sound signal frequency spectrum to acquire a curve function and a coefficient set thereof {C}; normalizing {C} to obtain a new coefficient set {C'}; using {C'} as the input parameter of the product quality computation model to acquire the model operation result product quality R; computing the absolute value |D| of the difference between R and qualified product standard value delta; and if |D| is less than the threshold T, determining the detected product is qualified, and contrarily, determining the detected product is unqualified. The method can implement on-line high-speed detection on the metal canned product, effectively avoids the influence of the production technique difference of metal cans and the changes in the distance between the microphone probe and metal can on the detection result, and obviously enhances the detection accuracy.

The invention discloses a method for producing bovine-bone peptone by enzyme technology, which belongs to the technical field of bioengineering. The method comprises the steps of pretreating fresh bovine bones and then adding enzyme for enzymolysis. The method has the advantages of advanced technique, reasonable process route, thorough enzymolysis, sufficient raw-material utilization, high yield of peptone products, good quality, high amino nitrogen content, high total nitrogen content, plentiful species of amino acid, proper proportion and high biological potency, and reaches reagent-grade product standards. The method takes the bovine bones as raw materials, changes waste into valuables, improves the utilization ratio of the bovine bones in China, reduces environmental pollution, drives the development of the livestock breeding industry and other industries, and remarkably improves the comprehensive benefit of farming and animal husbandry industrialization.

The invention discloses a light path pre-programmed anti-counterfeiting method which uses a light processing carrier and includes the step of anti-counterfeiting operation. The light processing carrier comprises a light source input end, a testing end, a starting end, a pre-programmed light propagation processing device, a light path changing device and a display end. The anti-counterfeiting operation includes the steps of firstly, lighting a light source to acquire product standard display information and a starting status; secondly, triggering a testing mode to display testing information; thirdly, stopping the testing mode so that the testing information disappears; fourthly, triggering a starting module so that product starting information is displayed to be started; fifthly, triggering the testing module so that the testing information is displayed to be not complete anymore; and sixthly, extinguishing the light source so that the display end does not display related information any more. The light path pre-programmed anti-counterfeiting method is simple in testing technique, a tool for distinguishing authenticity need not be customized and can be obtained anywhere, distinguishing is intuitively and reliably effective, the tool is convenient to manufacture, wide in application range, disposable, high in confidentiality, hard to break and hard to replicate.

The invention discloses a self-adhesive and a preparation method of the self-adhesive and an anti-pollution self-adhesive asphalt waterproofing membrane. The self-adhesive comprises the following components: petroleum asphalt, aromatic oil, naphthenic oil, synthetic wax, styrene-isoprene-styrene, styrene-butadiene-styrene, a tackifier, a stabilizer, a coupling agent and an inorganic filler. The anti-pollution self-adhesive asphalt waterproofing membrane comprises three layers which are a reinforced layer, a self-adhesive layer and an isolation layer successively; or five layers which are an isolation layer, a self-adhesive layer, a reinforced layer, a self-adhesive layer, and an isolation layer successively. According to the anti-pollution self-adhesive asphalt waterproofing membrane prepared by the invention, physical properties can meet product standard requirements in GB 23441-2009 Self-adhesive Polymer Modified Asphalt Waterproofing Membrane, and the peel strength of the membrane and an aluminum plate reaches 2.8 N / mm, and is higher than the standard by 1.5 N / mm.

The invention relates to a module power supply standard design system, and a design method and application thereof. A power supply product standard design system comprises a template base, a typical circuit base, an element base, a typical circuit calling module, a wiring diagram conversion module, a cable management module, an element directory generating module, a PCB (Printed Circuit Board) routing diagram generating module and a PCB assembling diagram generating module. Meanwhile, the design method of the module power supply standard design system is provided; a typical circuit can be directly called; a wiring diagram, a conducting wire table, an element directory, a PCB routing diagram, a PCB assembling diagram and a general detailed table are automatically generated; the design time of a designer is shortened; the design efficiency is improved; and the conditions of conducting wire table and wiring diagram inconformity, element lack and the like due to human negligence are avoided. Meanwhile, a method for performing power supply product design by using the standard design system is provided. The standard design of a power supply product is realized; the design speed is high; and the product quality is high.

The invention discloses a comprehensive recovery processing method for waste hybrid copper chloride etching liquid, which belongs to the field of non-ferrous metal and metallurgical valuable metal recover. The technological process of the method mainly comprises the following steps: (1) concentrating copper chloride etching liquid; (2) carrying out spray pyrolysis on a concentrated copper chloride solution so as to form copper oxide composite powder; (3) recovering chlorine so as to prepare a refined hydrochloric acid; (4) leaching the copper oxide composite powder by using a sulfuric acid; and (5) carrying out selective electrodeposition on copper sulfate leaching liquid by using a rotational flow electrolysis system so as to obtain a cathode copper product which of chemical compositions reach 1# copper product standards. The method disclosed by the invention is simple in process, short in flow, environment-friendly, and simple and feasible in operation, can effectively implement the comprehensive recovery of acidic and alkaline copper chloride etching liquid and the direct production of high-quality copper products, and effectively converts chlorine ions in waste liquid into refined hydrochloric acid products, thereby achieving the efficient and comprehensive utilization of resources.

The invention relates to ultraviolet (VU) offset printing transfer laser paint and a synthesis method thereof. The paint comprises the following ingredients in percentage by weight: 7 to 16 of modified polyacrylate resin, 4 to 10 of cellulose ester resin, 0 to 5 of nitro-cotton resin, 0 to 2 of additives and 69 to 89 of solvents. The resin ingredients are added into solvents, after the stirring, the additives are added into a reaction kettle and are uniformly dispersed, and the solid content and the viscosity are regulated to obtain products. Compared with the prior art, the VU offset printing transfer laser paint and the synthesis method have the advantages that the damage to the coating layer during the UV offset printing can be effectively reduced, the emission of harmful gas such as benzene and the like is reduced, the UV offset printing transfer laser paint conforms to the national volatile organic compound (VOC) detection standard, and the aluminum attaching performance, the temperature resistance performance, the peeling performance, the molding pressing performance, the flexibility performance, the transfer performance and the like all conform to the product standard of the laser transfer paint.

The invention belongs to the field of analytical chemistry, and discloses a method for measuring multiple types of ATP (adenosine triphosphate) associated products in an aquatic product with a high performance liquid chromatography-diode array method. A high performance liquid chromatograph provided with a diode array detector is used for detection, and a to-be-detected sample is fed into the high performance liquid chromatograph for gradient elution after extracted; which ATP associated product each chromatographic peak belongs to is determined according to the retention time and the ultraviolet absorption spectrum of the ATP associated product, the corresponding ATP associated product chromatographic peak area is detected, and the content of the ATP associated products in a to-be-detected sample extracting solution is calculated according to an ATP associated product standard work curve or regression equation under the same chromatographic condition. According to the method, requirements for equipment and analysis conditions are simple, the content of multiple types of ATP associated products in the aquatic product can be measured simultaneously without adopting an ion-pairing agent, ten types of ATP associated products can be measured simultaneously, and the separating time doesn't exceed 25 minutes.

The invention relates to a method for producing cement clinker through utilization of a stainless steel cold-rolled dehydrated sludge ingredient. The method comprises that: stainless steel cold-rolled dehydrated sludge and other materials of a cement green stock are evenly mixed to prepare the cement green stock; the cement green stock comprises the following compositions in percentage by weight: 70 to 79 percent of limestone, 10 to 14 percent of clay, 1 to 8 percent of the stainless steel cold-rolled dehydrated sludge, 5.3 percent of coal ash, 0 to 3 percent of iron ore powder and 0 to 0.5 percent of gypsum; and the prepared cement green stock is sintered to form silicate cement clinker. The obtained cement clinker and a corresponding cement product have no essential difference with the prior silicate cement clinker and a cement product in composition and performance; the quality of the cement clinker and the corresponding cement product meets the index requirement of national corresponding product standard and can be used as a normal high-quality commodity; and the method effectively utilizes and processes industrial sludge containing harmful metal elements, achieves the effects of resource optimization and utilization and has remarkable environment-friendly benefit.

The invention relates to a multifunctional communication transfer box, which includes a main control unit, an uplink communication unit and a downlink communication interface unit connected to the main control unit. The uplink communication unit is used to realize the communication based on the serial port between the main control unit and the upper computer, and the downlink communication interface unit is used to realize the communication between the main control unit and the product to be operated based on I2C, K-Bus, non-standard SPI, standard SPI, CAN And the communication of LIN interface. The control of the entire communication process and the conversion of the communication protocol are realized by the self-defined communication protocol placed in the main control unit. The communication adapter box of the present invention can realize the operation of testing or burning multiple products at the same time through the connection with the upper computer, which eliminates various inconveniences caused by the incompatibility of special communication boxes and greatly improves the production efficiency. efficiency, saving manufacturing costs.

The invention discloses a process for extracting KCl coarse grains by carrying out flotation on solid sylvinite primary ores, comprising the following steps; (1) crushing the solid sylvinite primary ores; (2) carrying out coarse grinding on the crushed sylvinite; (3) feeding the sylvinite material subject to coarse grinding into a flotation machine for primary rougher flotation and secondary refined flotation; and (4) filtering and drying concentrates obtained by the secondary refined flotation, thus obtaining the high-quality KCl bulky grain product. The product is purely white and transparent; the average grain size is 1mm-2mm; and the KCl grade is not less than 90% (by weight), thus exceeding the common industrial and agricultural high-class KCl product standards of class-II and class-III and reaching the special industrial KCl standard of national standard GB6549-1996I.

The invention relates to a three-warehouse coordinated management cigarette logistics system which is formed by a logistics center A, a production base B, a production base C and a center control module. The center control module is composed of an order module, an inventory module and an ex-warehouse module. The order module is characterized in that conditions of orders are reflected through an order characteristic analysis model with the order product standard concentration ratio, the order product standard cover degree, the order product standard association degree and the order volatility as the characteristics. The inventory module comprises an input program, a process matching program and an output program. The ex-warehouse module comprises an input program, an order processing program and an output program. According to the three-warehouse coordinated management cigarette logistics system, external direct ex-warehouse of multiple warehouses is achieved, allocation among the warehouses is reduced, cost is saved, the operation efficiency is improved, and most-efficient data exchanging and most-efficient logistics operation are achieved.

The invention discloses a method for removing alkali metal via electrolytic aluminum liquid. The method comprises the steps of: filling aluminum fluoride powder-mixed inert gas into the electrolytic aluminum liquid; and mixing the electrolytic aluminum liquid in the gas filling process, wherein the content of the aluminum fluoride powder is converted according to a detected concentration of alkali metal in the electrolytic aluminum liquid before the alkali removal treatment. The method provided by the invention has the following beneficial effect that the inert gas and the aluminum fluoride powder are used for removing the alkali metal, so that the alkali metal in the electrolytic aluminum liquid can be directly removed online, requirement that the content (5ppm) of the alkali metal of aluminum melt is better than the European related product standard is realized, the machining property requirements of high-grade, precision and advanced aluminum alloys can be realized, the purification requirements on high-quality aluminum melt by production of high-grade aluminum machining materials can be satisfied and the potential safety and environmental hazards in alkali metal removal by chlorine used by numerous enterprises at present can be avoided.