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249results about How to "Good economic and social benefits" patented technology

Automatic sleep stage method based on electroencephalogram, heart rate variability and coherence between electroencephalogram and heart rate variability

The invention discloses an automatic sleep stage method based on electroencephalogram, heart rate variability and the coherence between the electroencephalogram and the heart rate variability. The method comprises the following steps of extracting electroencephalogram signals and heart rate variability signals of a testee, extracting 9 feature vectors from the electroencephalogram signals and the heart rate variability signals, carrying out principal component analysis on the 9 feature vectors, and using a support vector machine classifier to identify features after feature extraction to carry out automatic sleep stage. The method can effectively improve the accuracy and the convenience of an automatic sleep stage system, and the method can obtain considerable social benefits and economical benefits. The optimal implementation scheme is patent transfer, technical cooperation or product development. The automatic sleep stage method is simple in operation and high in sensibility. The products based on the automatic sleep stage method can be applied to various scenes of sleep monitoring, sleep scientific researches and the like.
Owner:TIANJIN UNIV

Wireless sensor network-based river basin pollution monitor system and method

The invention relates to a river water quality detect system and a relative method, based on wireless sensor network, belonging to environment protective technical field. The system is composed of a water quality information collecting node, a relay node, a detect base station, and a remote server, wherein the delay node and the detect base station form a chain wireless network, the information collecting node is in the network with nearby delay nodes, to form a wireless sensor network to pickup the pollution information of river and send information to the base station, the base station collects the picked data, via wire network to be transmitted to a remote server. The invention can pick water quality information, detect pollutant real-time, and alarm over pollution, while the network information is collected to the remote server to be intelligently managed, to analyze the water quality information. The invention realizes water quality detection, to obtain the pollution information and execute relative operation to manage the pollution.
Owner:INST OF ELECTRONICS CHINESE ACAD OF SCI

Low grade tailing steel slag re-use method and slurry magnetic separation equipment

The invention discloses a method for reutilization of low-grade after-product steel slag and a magnetic plant thereof, relating to a method for comprehensively utilizing the steel slag. The method comprises the sequential steps as follows: the low-grade after-product steel slag is screened, magnetically selected and ball-grinded by wet-method; the magnetically selected steel slag slurry is mixed with blast-furnace slag powder, plaster powder, cement and precocious digester as steel slag slurry mixture; the steel slag slurry mixture is mixed by compounding with one or more matters out of steel slag aggregate, crushed stone, sand, water and gas former aluminium powder so as to prepare porous bricks or standard bricks or pre-mixing mortar or aerated concrete block. The method can use a plurality of low-grade after-product steel slag, realizes the diversification of product, has large usage quantity and zero exhaust of the steel slag and is a good method for comprehensive utilization.
Owner:中冶武汉冶金建筑研究院有限公司

BIM technology-based project amount calculation method

The invention discloses a BIM technology-based project amount calculation method. The method comprises the following steps of receiving, checking and rechecking a drawing; establishing a BIM three-dimensional model according to the design drawing; carrying out dynamic management on the BIM three-dimensional model; carrying out collision inspection on the BIM three-dimensional model by combining the actual situation of the project; adjusting and modifying the BIM three-dimensional model according to the collision inspection result of the BIM three-dimensional model; customizing a calculation rule in the BIM three-dimensional model; and calculating and summarizing in the BIM software, and exporting a project amount list. By adopting the method, modeling can be completely carried out according to the actual condition of the building engineering, the actual condition of the building structure can be truly reflected, and the engineering quantity calculation accuracy is improved; a calculation rule is customized in BIM software, parameters of each dimension of the component are accurately calculated, and the quality of engineering quantity calculation is improved; the improvement of theengineering quantity calculation quality is of great significance to the result of the engineering cost, and the method has good social and economic benefits.
Owner:CHINA CONSTR EIGHT ENG DIV CORP LTD

Parking guidance system based on LBS (location based service)

The invention discloses a parking guidance system based on LBS (location based service). The parking guidance system consists of a parking lot server side, a server and a client side, wherein, the parking lot server side comprises an exit sensor and an entrance sensor which are respectively arranged on lifting levers at an exit and an entrance of a parking lot, and the sensors collect parking space information of the parking lot in real time and send the information to the server; the client side acquires car position information through a positioning module and then sends the information to the server; and according to the received parking space information of the parking lot, the server selects three parking lots based on a near-to-far distance and low-to-high charges principle, and sends the position information of the parking lots to the client side. The parking guidance system based on the LBS has the characteristics of realizing convenient and fast parking, fully and reasonably utilizing resources and facilitating energy conservation and emission reduction.
Owner:无锡爱维特信息技术有限公司

Method for preparing trichlorosilane and polycrystalline silicon by transforming silicon tetrachloride

The invention aims at the problems of low one-time conversion rate, high energy consumption and large equipment investment in the conversion from the environment-polluted SiCl4 obtained in the process of the polysilicon industrial production to SiHCl3 used for the polysilicon production material by adopting the heat hydride process and much lower economic benefit of the white carbon black production using SiCl4 than that of the polysilicon. The invention provides enterprises with a SiCl4 conversion method for preparing SiHCl3 and polysilicon, which includes loading hydrogen or mixed gas of hydrogen and argon as the plasma working gas into a plasma generator, forming hot plasma jet flow at a temperature of higher than 4,000 K by arc discharge under the strong electric field, and inducing SiCl4 in a reactor to perform the reduction reaction for converting SiCl4 into SiHCl3 and polysilicon. The conversion method has the outstanding advantages of improved process, low energy consumption, and equipment investment, with SiHCl3 as main product, polysilicon as co-product and HCl as byproduct, the method further effectively prevents environmental pollution of silicon tetrachloride and increases the economic benefit.
Owner:SICHUAN JINGU POLYCRYSTALLINE SILICON

Making process of fermented plant fiber and protein food

The present invention relates to food producing technology, and is especially making process of fermented plant fiber and protein food. The fermented plant fiber and protein food is made with soybean, peanut, coffee bean, rape, nut and / or nut residue containing plant fiber and protein as material, and through regulating water content to 60-85 %, cooking, fermenting through inoculating some bacterial seed, crushing the fermented product, seasoning and further treating to obtain different types of fermented plant fiber and protein food. The process is simple and feasible, and the food product has complementary and easy-to-absorb nutrients.
Owner:北京王致和食品集团有限公司

A slip control digital intelligent speed regulation and system of motor without speed transducer

The invention discloses a non-speed sensor slip speed-adjusting digital and intelligent speed-adjusting method and a system which comprises a motor, soft start equipment, a slip speed-adjusting, a slip power feedback and a programmable controller and is characterized in that: the slip speed-adjusting comprises a rotor rectifier, a chopper and a digital signal processor DSP1, exerts the dual-ring control of non-speed sensor speed measurement and the motor speed current, and transfers the slip energy to the electric energy; the slip power feedback comprises an inverter, a filter and a digital signal processor DSP2, exerts the dual-ring control of feedback circuit voltage current, and feedbacks the energy to a power net; the programmable controller exerts the whole system program control, and comprehensive fault and process. The invention is suitable for the common wire winding asynchronous motor and the inner-feeding wire winding asynchronous motor, and is characterized in using the low voltage device to control the medium voltage motor. Meanwhile, the invention has the advantages of simple circuit, good performance, perfect function, kind interface and simple and convenient operation.
Owner:张振武 +1

Deep horizontal well drilling track regulating method

The invention discloses a deep horizontal well drilling track regulating method, which comprises the following steps of: before the drilling of a drilling well, using an adjacent well speed field for predicting the main formation limit depth of the drilling well; before the drilling to a target layer, virtualizing the drilling well into a pilot well; obtaining the actual formation limit depth of the drilling well and a quarto well logging curve while drilling; correcting the deep formation limit at the main formation depth obtained before the drilling according to the obtained actual formation limit depth, and obtaining a corrected marking layer depth; performing the putting into a seismic profile according to the obtained quarto well logging curve in accordance with the marking layer so as to reverse the speed field of the drilling well; predicting the depth of the target layer of the drilling well according to the speed field of the drilling well; and regulating the drilling track set in the last time if the difference of the current predicted depth of the target layer and the depth of the target layer predicted in the last time is greater than the preset deviation threshold. The method has the advantages that the Yuanba horizontal well track optimization and regulation are effectively guided, and the effective reservoir drilling ratio is improved.
Owner:CHINA PETROCHEMICAL CORP +4

Method for drying and reducing low-grade latertic nickel ores by using bituminous coal

The invention discloses a method for drying and reducing low-grade latertic nickel ores by using bituminous coal. The method is characterized by comprising the following processes of: 1, after prescreening iron nickel laterite extracted from mines, crushing mineral grains with the size of between 3 and 600mm into the mineral grains with the size of between 3 to 15mm by a three-section one-closed-circuit method; after transporting the mineral grains to a disc feeder by a belt, quantitatively transporting the mineral grains to a rotary kiln by the disk feeder; and finishing natural material mixing and roasting reduction in the process of the rotation of a kiln body; or 2, after prescreening the iron nickel laterite extracted from the mines, mixing the mineral grains with the size of less than 3mm and dust collected by a dust collecting system; granulating; after transporting the mineral grains to the disk feeder by the belt, quantitatively transporting the mineral grains to the rotary kiln by the disk feeder; finishing the natural material mixing and the roasting reduction in the process of the rotation of the kiln body; and discharging hot materials subjected to roasting reduction, wherein the iron reduction rate reaches 75+ / -5 percent and the nickel reduction rate reaches 82+ / -3 percent.
Owner:PINGAN XINHAI RESOURCE DEV +1

Roll surface wear-resisting repair technology for cement roller press

The invention relates to roll surface wear-resisting repair technology for a cement roller press, which belongs to the technical field of industrial wear resistance. The technology comprises the following steps of: 1) performing pretreatment on a roll surface on the surface of the roller press by using carbon arc air explosion or electrical melting and explosion to remove a fatigue layer; 2) performing ultrasonic flaw detection on a roll shaft and the roll surface by using an ultrasonic flaw detector, preheating a roll to about 150 DEG C after the roll is confirmed to be qualified, and performing overlaying by using open arc flux-core wires; 3) overlaying an austenite alloy on the first layer of the surface of a roll body as an underlayer; 4) overlaying a transition layer on a second layer; 5) overlaying a wear-resisting layer on a third layer; and 6) overlaying a decorative-pattern layer on a fourth layer. Compared with the prior art, the roll surface wear-resisting repair technology has the technical advantages of doubling the service life of the roller press repaired by the technology and reducing the cost by 2 / 3, along with capability of performing repeated welding of many times and good economic benefits and social benefits.
Owner:JIANGXI HENGDA HI TECH CO LTD

Translation construction method for building

The invention discloses a translation construction method for a building. The translation construction method is characterized in that a carrier system comprises jacks, supporting columns, supporting rods, a horizontal connection rod, a scissors support, embedded steel bars and a raft plate, wherein the jacks are connected to buried steel plates on the tops of the supporting columns through bolts; the supporting columns adopt steel tubes with the diameters of 200-250mm; the steel tubes are 10-12mm thick; the supporting rods are arranged between adjacent supporting columns and adopt steel tubes with the diameters of 25-30mm; lower supporting systems of the adjacent framework columns constitute a grid column through the horizontal connection rod and the scissors support; the horizontal connection rod and the scissors support adopt angle steel; the supporting columns are connected with the raft plate through the embedded steel bars; the embedded steel bars adopt M18 anchor bolts; and the raft plate is used as a counterforce foundation. The translation construction method is safe and reliable and is remarkable in social and economical benefits.
Owner:海宁市钱江兴业投资开发有限公司

Method and device for using plasma to proceed coal gasification

A process for gasifying coal by plasma includes such steps as reaction of plasma jet on powdered coal and part of oxidant to make coal burn partially and remove volatile component, and reaction of hot carbon particles on the mixture of powdered coal, gasifier and oxidant to generate CO and H2. Its gasifying apparatus has an arc plasma generator and gasifying reactor with two powdered coal inlet pipes and at least two other materials inlet pipes.
Owner:TAIYUAN UNIV OF TECH

Kit for screening CYP450 enzyme inhibition medicament with high flux and research method thereof

The invention relates to a kit for screening a CYP450 enzyme inhibition medicament with high flux and a research method thereof, and belongs to the field of medicament safety evaluation. A kit body of the kit comprises an NADPH regeneration system, a 0.1M phosphate buffer solution, six mixed probe substrates, metabolites of the six mixed probe substrates, and 20mg / ml of liver microsomes of a mouse, rat, dog or monkey. The NADPH regeneration system, six enzyme substrate and medicaments with different concentrations are mixed, then the mixture and the liver microsomes of the mouse, rat, dog or monkey are incubated in a water bath at a temperature of 37 DEG C together, the inhibition effects of the medicaments on the activity of a CYP450 enzyme are judged by LC-MS / MS detection of the quantities of the six metabolites, and the IC50 value is calculated. The kit has the advantages of simplicity, accuracy, stability and convenience, so that the kit has broad application prospect.
Owner:CHINESE ACAD OF INSPECTION & QUARANTINE

Mud curing agent

The invention discloses a mud curing agent. The mud curing agent comprises the following raw materials in part by weight: 30 to 50 parts of rapid-hardening sulfoaluminate cement, 40 to 50 parts of river sand, 5 to 15 parts of ground plaster, 5 to 15 parts of calcium chloride and 0.025 to 0.075 part of cellulose carboxyl material. A using method for the mud curing agent comprises that: the colloid system of the mud must be subjected to colloid breaking treatment by adopting a colloid breaker before the mud is cured, and the mud curing agent is added into the mud after colloid breakage according to a certain proportion, so the mud can be well cured. By effective curing treatment for the mud, the original lacking land resource of China is saved, and the curing of the mud is realized, so that other constructions can be performed after soil is covered for returning tillage or certain curing strength is met, and the mud curing agent has good economic and social benefits.
Owner:CHINA TIESIJU CIVIL ENG GROUP

Method for detecting polydimethylsiloxane

The invention provides a method for detecting polydimethylsiloxane in a food. The content of a high molecular compound is determined by a pyrolysis gas chromatography / mass spectrometry. The method comprises the following steps of: performing high temperature pyrolysis on the polydimethylsiloxane in the food to obtain low-molecular compounds; discovering that the hexamethyl cyclotrisiloxane in the compounds can be used as an indicating component for determining the polydimethylsiloxane by authenticating the components of pyrolysis products by gas chromatography / mass spectrometry; determining whether complex pyrolysis products of a sample have the hexamethyl cyclotrisiloxane by taking m / z 207, 191, 177 and 133 as mass spectrum characteristic ions of the hexamethyl cyclotrisiloxane so as to qualitatively determine whether the sample has the polydimethylsiloxane; and calculating the content of the polydimethylsiloxane in the sample by an external reference method by taking the m / z 207 as quantitative ions. The method provided by the invention has the characteristics of simplicity, rapidness, accuracy, reliability, and high sensitivity, and can be used for detecting the content of the polydimethylsiloxane in various types of food.
Owner:INST OF ANALYSIS GUANGDONG ACAD OF SCI (CHINA NAT ANALYTICAL

Wetting agent used for pretreated enhancement type filter cloth

The invention relates to a wetting agent used for pretreated enhancement type filter cloth, which is characterized by comprising the following components by weight ratio: 2-2.5% of color fixing agents, 2-2.5% of epoxy resins, 2.5-3% of water-soluble unsaturated polyester resins, 0.5% of A151, 0.5% of alcohol, 0.2% of tween-80 and the balance water. The pH value of the wetting agent is regulated to5 by glacial acetic acid. The filter cloth weaved by the yarns adopting the wetting agent formula can directly undergo surface chemical treatment without dewaxing, thus saving the electric energy andmaintaining the strength of the filter cloths. The wetting agent overcomes the defect that the existing filter cloth weaved by the yarns adopting the paraffin wetting agent formula need dewaxing before surface chemical treatment, which not only consumes the electric energy but also damages the cloth cover strength.
Owner:山东兴国大成特种纤维科技有限公司

Bacillus licheniformis with biomass hydrolase activity and application thereof

The invention provides a Bacillus licheniformis strain UTM108 with biomass hydrolase activity. The strain is preserved in the CCCCM CGMCC on September 18, 2014 with the preservation number of CGMCC No.9679. The strain UTM108 can utilize sewage sludge of municipal sewage plants, household garbage, kitchen waste, animal carcasses, livestock manure, crop straw as well as organic solid waste such as traditional Chinese medicine dregs, non-hazardous waste fungus residues, food industry waste and the like produced by certain industries for high-temperature fermentative degradation, pollution caused by organic solid waste materials is treated, environment-friendly bio-fertilizers can also be prepared through composting and fermentation by the strain UTM108, and the strain is excellent in performance and has better economic and social benefits.
Owner:大地绿源环保科技(北京)有限公司

Glue feeding system with automatic glue proportioning function

The invention discloses a glue feeding system with an automatic glue proportioning function. The glue feeding system comprises an AB glue mixing machine, a control device and an AB glue mixing and discharging device, wherein the control system comprises a control cabinet and a control system; the control cabinet is connected with a control switch, an input power source and an input air source respectively; the control device is connected with the signal receiving end of the AB glue mixing machine which comprises an A glue bucket, an B glue bucket and an AB glue output unit; the AB glue mixing and discharging device comprises an AB glue amount control box and a glue discharge head rubber pipe; the AB glue amount control box comprises an upper glue box and a lower glue box which are fastened together; and the upper glue box is provided with a stirring motor, a stirring head, a floating block connecting rod, floating blocks, a guide shaft, an upper limiting sensor and a lower limiting sensor. By the glue feeding system, the problems that manual glue proportioning is frequent and the work efficiency is low due to manual glue stirring are solved; the requirement for automatically feeding glue as required is met; cleaning liquid for a pipeline cleaning device is designed for cleaning pipelines, so as to prevent residual A glue and B glue in the pipeline from blocking the pipeline; and thus the glue feeding system has good economical and social effects.
Owner:WUHAN MINHUI AUTOMOTIVE PARTS

Method for planting Phellodendron Chinense Schneid

The invention discloses a method for planting Phellodendron Chinese Schneid. The method mainly comprises the following steps of seedling culture, transplanting, filed management, pest control and the like. Topdressing is conducted in the first ten days in November every year from the second year after transplanting, wherein farmyard manure of 8-10 kilograms and phosphatic fertilizer of 1.5-2 kilograms are applied to each plant groove from the second year to the fifth year, and the farmyard manure of 12-15 kilograms and the phosphatic fertilizer of 3-4 kilograms are applied to each plant groove from the sixth year to the eighth year. The method is used, the Phellodendron Chinese Schneid grows fast, harvest time can be entered in 9-10 years, compared with wild Phellodendron Chinese Schneid, the harvest time is brought forward by 1-2 years, and good economical and social benefits are achieved.
Owner:普定县绿源苗业开发有限公司

Modifying reclaiming formulation for engineering plastic

The invention provides a modified recovery formula of engineering plastic, which essentially comprises the following components calculated by weight proportion: 65-81 proportions of PC / ABS defective material, 5-12 proportions of PC defective material, 1-4 proportions of compatilizer, 4-8 proportions of flexibilizer, 5-10 proportions of brominated micromolecule flame retardant, 1-3 proportions of antimonic flame retardant, 0.1-0.3 proportions of antioxidant and 0.1-0.3 proportions of ultraviolet absorbent. The invention adopts the new toughener and flame retardant and is added with PC defective material to recycle PC / ABS defective material, thus leading the mechanical property and combustion performance of the PC / ABS defective material to meet the requirement of raw material while both the PC defective material and the PC / ABS defective material can be economically recycled. The invention has no additional burden on environment and better economic and social benefits.
Owner:MITAC PRECISION TECH CO LTD SHUNDE DISTRICT FOSHAN CITY

Solanesol extracting and preparing process

The process of extracting and preparing high purity solanesol from tobacco extractum includes: dissolving crude tobacco extractum in alkane solvent, saponifying under alkali alcoholate condition for 3 hr, filtering the reaction product, adsorbing the filtrate with macroporous resin, eluting with low toxicity mixed lower ketone and lower alcohol solvent, rotary evaporating the eluted solution to recover solvent, and decompression vacuum drying to obtain solanesol in the purity of 90-95 %. The said process has simple operation, reusable solvent, low cost and no pollution, and may be used in industrial production of solanesol in the purity over 90 %.
Owner:EAST CHINA UNIV OF SCI & TECH +1

Medical appliance intelligent monitoring system

The present invention provides a medical appliance intelligent monitoring system. The medical appliance intelligent monitoring system comprises monitoring devices and a management system, wherein the monitoring devices are connected with the management system, and the management system is connected with a central server of a hospital; each monitoring device is corresponding to one medical device, and is used for collecting medical images of the medical device, transmitting the collected medical images to the management system, receiving instructions from the management system to intelligently monitor the use of the medical device, and feeding the use condition back to the management system in real time; and the management system comprises a server and software that comprises device monitoring software and diagnosis result management software. The medical appliance intelligent monitoring system effectively combines an electronic technology, a computer technology and an application technology of precision sensing and medical appliances, so that the problem of difficult charge management of medical instruments is fundamentally solved; and the medical appliance intelligent monitoring system can reasonably integrates image resources, and by virtue of analysis of an advanced medical image processing technology, diagnostic pathology is effectively and professionally processed, the workload of doctors is lightened, and the diagnostic efficiency is improved.
Owner:TIANJIN SEWEILANSI TECH

Self-assembly short peptide and use thereof in antineoplastic medicine preparation

A self-assembly short peptide R418 consists of an anti-tumor bioactive peptide section S18, a self-assembly peptide section RADA16-I and a connection peptide section, and the amino acid sequence is described in sequence table SEQ ID NO.1. The characterizations of an atomic force microscope and a transmission electron microscope prove that R418 molecule has the characteristic of forming nano fiber through self assembly in a solution. In vitro cell experiment shows that the self-assembly short peptide R418 can remarkably cause the death of tumor cells K562, Jurkat and MDA-MB-435S and has lower cytotoxicity on NIH3T3 cell. Beastie living body imaging experiments show that: after self assembly, the holding time of the local concentration of the R418 in an in vivo tumor region is much longer than the holding time of the local concentration of the S18. In accordance with beastie living body imaging experiments, animal tumor inhibition experiments show that: the self-assembly short peptide R418 has better tumor inhibition effect as compared with short peptide S18.
Owner:SICHUAN UNIV

Simple industrial production method for dendrobium candidum

The invention relates to a simple industrial production method for dendrobium candidum, which comprises the following steps: carrying out the hybrid pollination of dendrobium candidum according to the conventional method; performing the non-symbiosis germination culture of the seeds of dendrobium candidum; subjecting the protocorm-like bodies (PLBs) of the seeds to induction differentiation on a 1 / 2 Murashige and Skoog (MS) culture medium; inoculating the differentiated protocorms into polypropylene (PP) plastic bags and performing seedling raising differentiated culture; and transplanting seedlings 3 to 4 months later. In the invention, a new variety is provided for agriculture production in green houses in rural areas, the industrial batch production of dendrobium candidum seedlings is realized, natural heating and lighting reduce carbon emission and prevent secondary pollution, the plastic bags are suspended in the green houses for fully utilizing effective space, millions of dendrobium candidum seedlings can be grown in each mu in the green houses, and thus, the method has very considerable economic and social benefit.
Owner:NANKAI UNIV

Method for purifying powdered iron from steel-smelting sewage sludge coarse grain

The invention discloses a method for purifying iron powder from coarse-particles of steel-smelting sludge, and relates to the method for effectively reclaiming and re-using the coarse-particles of the steel-smelting sludge in iron and steel industry. Aiming at a problem at present that metallic iron in the coarse-particles of the steel-smelting sludge isn't utilized effectively, the invention provides the method for purifying the iron powder from the coarse-particles of the steel-smelting sludge, which comprises steps of selecting magnetically, ball-grinding, sorting through gravity, drying, screen-classifying, reducing finely, bruising, combining and the like. The iron powder with MFe>=90% and TFe>=96% is separated successfully from the steel-smelting sludge through the invention, the iron power with TFe>=98% which can be used for welding rods and the like can be obtained, the utilizing value of the coarse-particles of steel-smelting sludge of rotary stoves can be increased greatly, the utilizing fields of the coarse-particles of steel-smelting sludge of rotary stoves can be developed, and according to industrial experiments and productions, the method is certified to be the method for producing the iron powder with little investment, short technological process, low cost and good benefits, and thereby the invention is beneficial to be extended and applied.
Owner:武汉钢铁有限公司

Coal dressing collecting agent and preparing method thereof

The invention relates to a coal dressing collecting agent and a preparing method of the coal dressing collecting agent, in particular to a coal collecting agent with butyl-octyl alcohol residual liquid in petrochemical enterprises as raw materials and a preparing method of the coal collecting agent and belongs to the technical field of preparing of coal slime flotation collecting agents. According to the coal dressing collecting agent, the butyl-octyl alcohol residual liquid in the petrochemical enterprises and phthalic anhydride serve as raw materials, under the action of catalysts, firstly, the temperature is raised to 70-150 DEG C, and a backflow reaction is performed for 1-5 hours; then, the temperature is raised to 120-300 DEG C, water phases and organic phases are separated after the backflow reaction is performed for 1-5 hours, drying and dewatering are performed on the organic phases, and the coal dressing collecting agent can be obtained. According to the coal dressing collecting agent and the preparing method of the coal dressing collecting agent, the preparing process is simple, the obtained product is good in flotation capacity, and industrialized production and industrialized application are facilitated. Meanwhile, the problem that the butyl-octyl alcohol residual liquid cannot be easily processed with high efficiency and high yield is well solved.
Owner:SHENZHEN RUICHENG SHIDAI IND CO LTD

Method for controlling stability of air-fuel ratio of gas cooker

The invention provides a method and an apparatus for controlling the stability of the air-fuel ratio of a gas cooker. The apparatus is characterized in that: a fuel pressure signal sensor, an air-fuel ratio control performer, and a miniature fan providing combustion air to fuel combustion are arranged between a fuel valve and a nozzle. The action principle of the apparatus is characterized in that: the fuel pressure between the valve and the fuel nozzle of the gas cooler is a control source signal to adjust the air supply volume of the miniature fan which provides the combustion air to a combustor of the gas cooker; the control mode of the air supply volume change of the miniature fan is a model which adjusts the air supply volume of the fan or the revolution number of the fan with the change of the fuel pressure and treats the maintenance of the relative stability of the air-fuel ratio as the adjustment object; and a novel air-fuel ratio controller for the gas cooker and the gas cooker are formed according to the method of the invention.
Owner:NORTH CHINA MUNICIPAL ENG DESIGN & RES INST

Remote fault diagnosis system and method for concrete batching plants

The invention provides a remote fault diagnosis system and method for concrete batching plants. The system comprises at least one concrete batching plant, a near-end monitoring module, a wireless network module, a far-end monitoring module and a fault diagnosis module, wherein the wireless network module is connected with the fault diagnosis module through the GPRS and is connected with the far-end monitoring module through the GPS, the far-end monitoring module comprises a far-end monitoring computer and a portable far-end monitoring device, and the fault diagnosis module comprises a database module, a database maintenance module and a diagnosis module. The method comprises the steps of (1) acquiring data, (2) storing and uploading data, (3) analyzing data, (4) judging whether a fault occurs, (5) conducting forward reasoning, (6) conducting backward reasoning, and (7) outputting a conclusion. By means the system and method, geographical location positioning, remote information management, equipment state detection and remote fault diagnosis of the concrete batching plants can be achieved, and quick response to maintenance requirements of users is realized.
Owner:SHANTUI JANEOO MACHINERY
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