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181results about How to "Avoid exclusion" patented technology

Control method for oil return of DC inverter compressor

The invention discloses a control method for oil return of a DC inverter compressor, which comprises the following steps of: (1) initially supplying power to start the machine, and setting the opening of an electronic expansion valve according to the number of the started indoor units; (2) adopting different upconvert methods according to the target frequency of the compressor; (3) if an air conditioning unit starts for 10 minutes, starting oil return circulation; and (4) after oil return, if the machine is in a heating mode, judging whether the temperature of an outdoor coil is less than or equal to -12DEG C, if so, beginning defrosting circulation, and starting a conventional automatic adjustment mode after defrosting, otherwise, starting the conventional automatic adjustment mode, and if the machine is not in the heating mode, directly starting the conventional automatic adjustment mode; and (5) when a stop command is received, adopting different stop modes according to different operating frequencies of the compressor. Compared with the conventional methods, the method has the characteristic of effectively solving the problem of oil starvation in the starting process, normally running process and stopping process of the compressor.
Owner:NINGBO AUX ELECTRIC

Apparatus and method for controlling upstream traffic for use in ethernet passive optical network

Apparatus and method for controlling upstream traffic for use in EPON (Ethernet Passive Optical Network) system. The method for controlling upstream data traffic transferred from an ONU (Optical Network Unit) to an OLT (Optical Line Termination) in an EPON (Ethernet Passive Optical Network) system including an ODN (Optical Distribution Network) connected to one OLT, and a plurality of ONUs connected to the ODN and also respectively connected to a plurality of subscribers, includes the steps of a) controlling the OLT to determine an ONU serving as an upstream transmission authority allocation target; b) controlling the OLT to insert information of a predetermined ONU serving as an upstream transmission authority allocation target ONU in a downstream data frame transferred to the ONU, and transmitting the downstream data frame having the inserted ONU information; and, c) controlling the upstream transmission authority allocation target ONU having received the downstream data frame to transmit upstream data. Therefore, limited traffic resources can be used equally by a plurality of ONUs, resulting in the prevention of data collision among upstream signals.
Owner:SAMSUNG ELECTRONICS CO LTD

Continuous wastewater treatment device utilizing membrane capacitive deionization

The invention relates to a continuous wastewater treatment device utilizing membrane capacitive deionization. An upper cover plate and a lower cover plate are coaxially installed at the upper end and the lower end of a cylindrical shell, a water inlet nozzle and a water outlet nozzle which are communicated with the interior of the shell are respectively formed in the axis part of the upper cover plate and the axis part of the lower cover plate, a water collecting plate is coaxially installed on the upper cover plate in the shell, conducting rods are uniformly and axially distributed on the periphery of the shell at intervals, a lower distribution board and an upper distribution board are coaxially installed in the shell between the water collecting plate and a water distributing plate and are of a pair of metal boards, and a plurality of groups of processing module components are coaxially installed between the two distribution boards, wherein each group of processing module component comprises an upper current collecting plate, a membrane carbon positive electrode, a diaphragm, a membrane carbon negative electrode and a lower current collecting plate. According to the continuous wastewater treatment device, the membrane electrode is integral and is prepared by a carbon electrode and an ion membrane through spraying a cation exchange coating on a cathode and spraying an anion exchange coating on an anode, the thickness of the ion exchange layer is less than 10mu, and the membrane electrode has small resistance and large capacitance compared with those of a membrane electrode on which an ion membrane is directly added.
Owner:BEIJING HUA YAN BANG SCI & TECH +1

Intelligent spectacle based worker navigation system and method

The invention provides an intelligent spectacle based worker navigation system and method. The method comprises the following steps: S1, a sensor unit is adopted to acquire user position information, and the acquired user position information is subjected to positioning calibration by a positioning unit; S2, position information of other correlated users is acquired by a communication unit; S3, position information of different users is input in a navigation calculating unit, and navigation paths between the user positions are calculated according to indoor map information of a memory unit; and S4, each correlated user adopts an indicating unit to perform real-time path navigation. Through introduction of intelligent spectacles, the whole navigation system structure is simplified, the cost is reduced, and moreover, real-time navigation can be conveniently and rapidly performed on more than two workers in an active state.
Owner:SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI

Method for preparing porous silicon nitride wave transmitting ceramic with low dielectric constant and high strength

The invention discloses a method for preparing a porous silicon nitride wave transmitting ceramic with low dielectric constant and high strength. The method comprises the following steps of: (1) proportioning: uniformly mixing 80-90 weight percent of silicon nitride powder and 10-20 weight percent of metallic oxide to obtain a powder mixture; (2) mixing: adding absolute ethanol in an amount which is 30 to 60 percent based on the total mass of the material-powder mixture, and mixing the material-powder mixture and agate balls in the mass ratio of 1:2 for 12 to 24 hours to obtain the wet mixed material, wherein the agate balls are taken as mill balls; (3) forming: drying the wet mixed material, then sieving the mixed material with a screen, and performing compression forming to obtain a blank; and (4) sintering: sintering the blank in a protective atmosphere to obtain the porous silicon nitride wave transmitting ceramic. The method does not need a special pore former; a pore is formed by overlapping the columnar silicon nitride; and the method has the advantages of uniform and diffused pore, simplicity and low cost.
Owner:AEROSPACE RES INST OF MATERIAL & PROCESSING TECH +1

Composition containing exogenous mitochondrion as active ingredient, application thereof and cell repairing method

The invention discloses a composition containing exogenous mitochondrion as active ingredient, application thereof and a cell repairing method. The composition comprises exogenous mitochondria and at least one pharmaceutically acceptable carrier or carrier acceptable in beauty, and further comprises an adjuvant which is prepared from a group composed of serum, blood plasma, complement and combination of at least two of serum, blood plasma and complement. The exogenous mitochondria are obtained from cells by a centrifugal purification way. The composition is of high safety. The exogenous mitochondria are sent into cells completely as an effective dose of the composition is fed into an individuality, thereby achieving cell repairing and cell senescence controlling or preventing.
Owner:TAIWAN MITOCHONDRION APPLIED TECH

Preparative separation/purification system

After a target compound is captured by an adsorbent within a trap column (7) held by a column rack (8) in a substantially vertical position and the column is filled with water to wash its inside, dichloromethane is slowly introduced from an inlet end (7a) on the lower side by a pump (5). The water within the trap column (7) is pushed upward by dichloromethane and exits from an outlet end (7b), to be disposed of via a two-way selector valve (12) and a disposal passage (14). Dichloromethane elutes the captured target compound. Therefore, when the eluate, which initially consists of water, changes via an emulsion to dichloromethane, the eluate contains an adequately high concentration of target compound. At this point, the two-way valve (12) is switched to a preparative separation passage (13). As a result, a solution that is adequately free from water and yet contains the target compound can be collected into a collection container (17), and the target compound in solid forms can be quickly obtained.
Owner:SHIMADZU CORP

Installation mechanism of tile-shaped magnetic block of wind driven generator

The invention discloses an installation mechanism of a tile-shaped magnetic block of a wind driven generator. The installation mechanism comprises a working table, wherein the middle portion of the working table is provided with a columniform positioning inner core, the periphery of the columniform positioning inner core installed on the working table is provided with a plurality of rails which are in an radial shape and the pluralities of the rails are provided with installation components of the tile-shaped magnetic block. The outer side of each rail installed on the working table is provided with an ejection component used for pushing the installation components of the tile-shaped magnetic block to slide on the rails. The installation mechanism has the advantages of preventing effectively the magnetic block from being absorbed or repelled because of magnetic force, protecting effectively the magnetic block, being high in operability, good in positioning, high in efficiency, good in assembly quality, low in cost and the like.
Owner:GUANGDONG MINGYANG WIND POWER IND GRP CO LTD

Release film for green sheet production

Provided is a release film for green sheet production that comprises a substrate and a release agent layer. The release agent layer is formed by applying a material for release agent layer formation that contains an active energy ray-curable compound (A) comprising at least one reactive functional group that is selected from the group consisting of a (meth)acryloyl group, an alkenyl group, and a maleimide group, a polyorganosiloxane (B), and a carbon nanomaterial (C) to a first surface and irradiating the coating layer that is thereby formed with active energy rays. The release film for green sheet production is characterized in that the arithmetic average roughness (Ra1) of the outer surface of the release agent layer is 8 nm or less and the maximum protrusion height (Rp1) of the outer surface of the release agent layer is 50 nm or less. The present invention makes it possible to provide a release film for green sheet production that prevents the occurrence of pinholes, localized variation in thickness, or the like in the surface of a green sheet and that makes it possible to produce a highly reliable green sheet.
Owner:LINTEC CORP

Method for removing water vapor condensation in automobile lamp and automobile lamp casing structure with replaceable desiccant bag

The invention discloses an automobile lamp casing structure with a replaceable desiccant bag. Desiccant is arranged in a casing of the automobile lamp and especially arranged in a connecting cover of the casing of the automobile lamp. The thought of the method is to govern water vapor to solve the problem of the water vapor condensation in the automobile lamp, the water vapor in the automobile lamp is directly adsorbed by the desiccant, and the problem of the water vapor in the automobile lamp is completely solved. The traditional thought is to prevent steam from entering the casing of the automobile lamp or discharge the steam out of the casing of the automobile lamp so that the problem of the water vapor in the automobile lamp can not be completely solved. The automobile lamp casing structure with the replaceable desiccant bag is easy to install and dismount, capable of facilitating replacement of the desiccant bag during after-sales maintenance, low in manufacture cost and after-sales warranty cost, and applicable to most of semi-closed automobile lamps of the automobile.
Owner:DONGFENG PEUGEOT CITROEN AUTOMOBILE

Serum-free medium for rapid generation of induced pluripotent stem cells

Belonging to the technical field of cell mediums, the invention in particular relates to a serum-free medium for rapid generation of induced pluripotent stem cells. The serum-free medium for rapid generation of induced pluripotent stem cells includes a basic medium and an additive, and the additive comprises the following components in terms of final concentration: 20-40ng / mL cell growth factor, 21-30microg / mL transferrin, 6-9microg / mL fibronectin, 10-15microg / mL polyvinylpyrrolidone, 1-3microg / mL genistein, 4-7microg / mL mannitol, 5-8microg / mL insulin, 11-15microg / mL L-glutamine, 12-16microg / mL palmitic acid, and 8-15microg / mL hesperidin. The serum-free medium for rapid generation of induced pluripotent stem cells provided by the invention has the advantages of clear components, no serum, high safety, and rapid generation of induced pluripotent stem cells.
Owner:GUANGZHOU RAINHOME PHARM&TECH CO LTD

Single-stage target detection method using anchor-frame-free module and enhanced classifier

The invention discloses a single-stage target detection method using an anchor-frame-free module and an enhanced classifier. The single-stage target detection method comprises the following steps: embedding the anchor-frame-free module; designing a decoupling control method; training an enhanced classifier is trained. The model is named as enhanced YOLOv3, and the enhanced YOLOv3 is established onthe basis of the YOLOv3. In order to solve the problem of low recall rate of YOLOv3, the invention provides a hybrid method, which combines an anchor-frame-free module with a YOLO prediction branch to generate more stable prediction. According to the invention, an enhanced classifier is provided, redundant bounding boxes are extracted step by step through multiple cascaded classifiers, the enhanced classifier can prevent some key bounding boxes from being eliminated before post-processing, and meanwhile error detection is restrained. On the basis, the invention provides a decoupling method tosolve the problem of inaccurate positioning, and provides a feature enhancement module to construct more stable feature representation.
Owner:DUT ARTIFICIAL INTELLIGENCE INST DALIAN +1

Method for making surface antibiotic product using physical gaseous phase deposition technology

This invention relates to a method for manufacturing surface anti-bacterium product by a physical gas phase deposition technology including utilizing the physical gas phase deposition technology to plate an anti-bacterium target material on a matrix surface to form a film, characterizing in drilling small air holes on said anti-bacterium target and penetrating reaction gas by windpipes, in which, said target is made of As, Se, Hg, Ag, Cu, Zn, CE, Ca, Co, Ni, Al, Fe, S and their oxides, which drills holes on the target surface to prevent the target from poisoning to realize multi-arc plating and magnetic controlled sputtering plating.
Owner:姜培齐

Device and method for realizing three-dimensional printing micro-nano structure by utilizing alternating-current electrospining

InactiveCN106182785AIncreasing the thicknessAvoid changes in the electric field distributionAdditive manufacturing apparatusThree dimensional modelNanofiber
The invention provides a device and a method for realizing a three-dimensional printing micro-nano structure by utilizing alternating-current electrospining. The method comprises the following steps of: putting printing raw materials into an injecting system, and forming spherical liquid drops of the printing raw materials at a needle head; applying alternating-current high-voltage electricity to the needle head and a receiving plate, and forming alternating high-voltage electric fields between the needle head and the receiving plate, enabling the printing raw materials to form single jet flow under the action of the alternating high-voltage electric fields, and depositing the single jet flow on the receiving plate to form micro-nano fibers; enabling the temperature of the receiving plate to be stabilized to be lower than a smelting point of the printing raw materials, and curing micro-nano fibers; controlling the receiving plate to move, thereby obtaining layered sections of a three-dimensional model; and sequentially scanning each layer of the three-dimensional model to complete printing of the three-dimensional model. The method can effectively improve three-dimensional printing precision.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Reciprocating progressive self-adaptive feed control method for electrical spark machine tool

The invention discloses a reciprocating progressive self-adaptive feed control method for an electrical spark machine tool. A tool electrode in the electrical spark machine tool is controlled to perform a reciprocating progressive feed motion with a workpiece in an integral manner of reciprocating motion and progressive motion or in a separated manner of reciprocating motion and progressive motion so as to realize high-efficiency and high-quality electrical spark machining of a difficult-to machine material, particularly a semiconductor material, with a metal material. An appropriate discharge gap is automatically formed between the workpiece and the tool electrode, so that normal electrical spark discharge is promoted, continuous machining is ensured, and the method has the beneficial effects of quick chip removal and cooling, preventing the electrode from burning, improving the quality of machining surface, improving the machining efficiency, being wide in application range and the like.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Anti-African swine fever virus and anti-CD double-target pig-derived antibody, preparing method and application

PendingCN109734810ASolve the problem of mass deathAvoid damageBiocideHybrid immunoglobulinsAntigenInfected cell
The invention relates to the technical field of biological medicine, in particular to an anti-African swine fever virus and anti-CD double-target pig-derived antibody, a preparing method and application. The prepared anti-African swine fever virus and anti-CD pig-derived double-target compound antibody has two antigen combination sites which are combined with African swine fever viruses and immunecells respectively to generate the bridging effect and realize the two major functions; on one hand, the antigen proteins which cause immunosuppression and immune escape are inactivated, the immunosuppression and immune escape are eliminated, and the African swine fever viruses entering a body are killed; on the other hand, the functions of T cells are activated, the immune system is restored, the cell-mediated immunity is started, and virus expansion is prevented; meanwhile, infected cells are split and dissolved, phagocytes are activated to clear away the viruses and the infected cells, andthe aim of preventing and treating the African swine fever viruses is achieved. By means of the compound antibody, a biological medicine and a biological safety feed additive which eliminate the infection of the African swine fever viruses and prevent and treat the African swine fever can be prepared.
Owner:SHENZHEN JASON INTELLIGENT BIOTECH CO LIMLTED PRC

Hemostatic material and preparation method thereof

The invention belongs to the field of medical hemostatic materials and particularly relates to a hemostatic material and a preparation method thereof. The hemostatic material is prepared from raw materials in parts by weight as follows: 0.1-1.5 parts of carboxymethyl chitosan, 0.5-2 parts of PVA (polyvinyl alcohol), 0.2-5 parts of a compound toughening substance (named a plasticizing system hereinafter) and 0.5-1.5 parts of an ionic crosslinking agent. The hemostatic material can further comprise 0.5-3 parts by weight of a wide-spectrum hemostatic antibacterial agent. The product has good mechanical elasticity, can realize rapid hemostasis, can be completely degraded, is non-toxic and high in antibacterial property and is applicable to wound hemostasis, preferably body cavity hemostasis and especially applicable to nasal cavity hemostasis.
Owner:BEIJING TONGREN HOSPITAL AFFILIATED TO CAPITAL MEDICAL UNIV

Lane mark recognition device

An edge image generating unit 12 generates an edge image, into which edge points whose variation in luminance relative to a surrounding portion is equal to or more than a predetermined value have been extracted, from an image captured by a camera 2. A candidate image portion extracting unit 13 extracts a candidate image portion, which is a candidate for an image portion of a lane mark, from the edge image. A lane mark recognizing unit 14 detects a lane mark candidate on the basis of the candidate image portion and, in the case of having detected a plurality of lane mark candidates 51b to 54b and 61b to 63b adjacent to each other, compares the luminance of a corresponding area in the captured image for each of the lane mark candidates and recognizes the lane mark candidate 51b to 54b having the maximum luminance value as a lane mark.
Owner:HONDA MOTOR CO LTD

Experimental operation device for improving immunity of mouse

The invention discloses an experimental operation device for improving the immunity of a mouse. The experimental operation device comprises a base, wherein a first hydraulic cylinder is welded at thetop of the base, an output shaft of the first hydraulic cylinder is rotatably sleeved with a disc, a first locking mechanism is arranged on the disc, a second hydraulic cylinder is welded on one sideof the disc, an injection bucket is fixedly installed on an output shaft of the second hydraulic cylinder and is of a hollow structure, a push rod is arranged above the injection bucket, one end of the push rod extends into the injection bucket, a piston is fixedly installed at the end, located in the injection bucket, of the push rod, the piston is in tight contact with the inner wall of the injection bucket, a needle tube is arranged below the injection bucket, one end of the needle tube extends into the injection bucket, and a buffer device is arranged in the injection bucket. The experimental operation device is simple in structure and convenient to operate, can fix the mouse on the base, mechanically controls the push rod for injection, makes the injection more stable and prevents muscle hypertonicity from causing medicine rejection.
Owner:AFFILIATED HOSPITAL OF WEIFANG MEDICAL UNIV

Production method for calcium hydrogen phosphate

The invention relates to the technical field of chemical engineering, and particularly relates to a production method for calcium hydrogen phosphate. A calcium hydrogen phosphate product is prepared by reacting calcium oxide with a certain amount of water to form a calcium hydroxide solution; then reacting the calcium hydroxide solution with urea phosphate under stirring; controlling a pH value at 5.5-6.5; reacting for 5-20 min under stirring continuously and terminating the reaction. By adopting urea phosphate as a direct resource of phosphorus in the calcium hydrogen phosphate product, processes of removing impurities such as metal ions and fluorine in a process for producing feed level calcium hydrogen phosphate by using wet-process phosphoric acid are omitted; phosphorus utilization rate in the whole process is high; removal of a lot of wastes is prevented; and production cost of calcium hydrogen phosphate is reduced. In the obtained calcium hydrogen phosphate product, phosphorus content is 16.8-17.3%; calcium content is 20.35-22.2%; and fluorine content is 0.012-0.023%. The obtained calcium hydrogen phosphate product can fully meet the standard of feed level calcium hydrogen phosphate.
Owner:GUIZHOU KAILIN GRP MINERAL FERTILIZER CO LTD

Preparation method of three-dimensional soft bracket

The invention discloses a preparation method of an artificial organ soft bracket for replacing intracorporeal organs, and belongs to the technical field of bioengineering. The method comprises the steps of firstly, carrying out CT or MRI scanning on an individual organ of a patient, obtaining a group of N layers of faultage images related to organs and tissue parts from bottom to top; leading the obtained model data into a biological molding machine; then taking the organ tissue cells of the individual patient to cultivate, so as to obtain the tissue cell suspension solution with specific cell density; evenly mixing the cultivated tissue cell suspension with specific cell density and hydrogel according to a certain volume ratio; and finally printing the mixture of the tissue cell suspension solution and gel by a homemade biological molding machine, so as to finish preparation of the organ soft bracket. The soft bracket is prepared by a living tissue cell and the gel; meanwhile, the micro-structure and appearance prepared from the soft bracket are effectively controlled; and the requirements of individual difference of the patients and different parts on the organ soft bracket are met.
Owner:西安博恩生物科技有限公司

Functional fruit and vegetable cereal solid beverage and preparation method thereof

The present invention discloses a functional fruit vegetable cereal solid beverage. The solid beverage is composed of the following components in percentage by mass: 1-99% of functional oligosaccharides, and 1-99% of fruit, vegetable and cereal flour. The invention also discloses a preparation method of the solid beverage, and the method comprises the following steps: step (1) preparation of a fruit, vegetable and cereal powder; step (2) mixing and stirring; and step (3) sub-packaging. The beverage has effects of supplementing cellulose, vitamins and minerals, protecting cells, regulating blood sugar, blood pressure and blood lipid balance, protecting viscera, promoting nutrient absorption, removing toxic substances in intestines, preventing obesity, preventing dental caries, resisting oxidation, resisting tumor and delaying aging. The beverage can improve immunity of the human body through exogenous supplemental prebiotics and the fruit, vegetable and cereal powder.
Owner:江苏片山食品有限公司

Industrial exhaust gas purification treatment system

The invention belongs to the technical field of industrial exhaust gas treatment and provides an industrial exhaust gas purification treatment system. The system comprises a gas inlet, an oil fume gas condensing tower, a wet water film high pressure industrial exhaust gas purifier, a bag dust removing device, a cold combustion electrolysis tower, a plasma photocatalytic device and a gas outlet, the above parts are orderly communicated by pipes, a fan is arranged at the gas outlet, the top of the oil fume gas condensing tower is communicated with the top of the wet water film high pressure industrial exhaust gas purifier, the bottom of the wet water film high pressure industrial exhaust gas purifier is communicated with the bottom of the bag dust removing device, the top of the bag dust removing device is communicated with the top of the cold combustion electrolysis tower, and the bottom of the cold combustion electrolysis tower is communicated with the bottom of the plasma photocatalytic device. The system solves the problem that the existing treatment device has poor industrial waste gas treatment effects and cannot satisfy the existing industrial waste gas treatment demands.
Owner:HEBEI JIETIAN ENVIRONMENT PROTECTION EQUIP CO LTD

Image forming apparatus, image forming method and recording medium

Based on whether image formation is to be performed on an one side or both sides of record paper, and on whether image data concerning image formation is image data of an one-sided document or image data of a double-sided document, it is judged whether a blank page or a blank sheet whose both sides are blank pages is included, and image formation is performed excluding said blank page or both sides of the blank sheet based on said judgment result.
Owner:SHARP KK

Integrated automatic alarm device of hydraulic system

The invention relates to an integrated automatic alarm device of a hydraulic system. The integrated automatic alarm device of the hydraulic system comprises a control box, wherein a control data display instrument, a fault indicating lamp, an alarm apparatus, a reset switch and a relay are arranged inside the control box. The device is efficient and compact; and after fault alarm occurs, field staff do not need a control center or doe not need to inform the staff of the control center of carrying out check operation on a fault control cabinet and then carrying out field maintenance, the device can intensively display an alarm signal of the hydraulic system on the spot, directly obtain fault information and carry out timely maintenance according to the fault indicating lamp. The device also has intelligent alarming and resetting functions; the reset switch is pressed when the alarm apparatus twinkles and buzzes, and the alarm apparatus stops twinkling and buzzing; meanwhile, the fault indicating lamp still displays the alarm position until the fault is eliminated; and the alarm apparatus twinkles and buzzes, and so forth until the fault is eliminated if the alarm fault is not relieved after set resetting time of the device is achieved.
Owner:NINGBO CHUANGLI HYDRAULIC MACHINERY MFG CO LTD

Automatic traditional Chinese medicine material processing device

The invention discloses an automatic traditional Chinese medicine material processing device comprising a shell and water tanks arranged on the two sides of the shell. A drying bin used for drying washed medicine materials is arranged at the bottom end in the shell, and a washing bin used for washing materials is arranged at the upper end in the shell. The part, at the bottom of the drying bin, ofthe shell is provided with a discharge outlet, and a high-temperature drying pipe is arranged at the top. The top of the drying bin communicates with the washing bin through a material guide pipe. The bottom of the washing bin is provided with two water outlets. The top of the shell is provided with a feed inlet. A rotary motor is arranged at the top, on one side of the feed inlet, of the shell.A rotary shaft is arranged at the output end of the rotary motor. A washing brush is arranged on the surface of the rotary shaft. The automatic traditional Chinese medicine material processing deviceis provided with a series of structures, thereby having the advantages that operation is convenient, processing efficiency is high, manpower is saved, and efficiency is improved.
Owner:重庆市开州区茅坡林生态农业开发有限公司

Method for synthesizing chloromethane from gas-state hydrogen chloride

The invention discloses a method for synthesizing chloromethane from gas-state hydrogen chloride. The method particularly comprises the following steps: reacting by virtue of hydrogen chloride gas andmethanol in a row tube circulating fluidized bed reactor, so as to generate methane chloride, wherein a discharging hole is formed in the bottom of the reactor, a discharging pipe is connected with amethanol collection tank, a stirring hole, a gas-phase outlet, a vent hole and a feeding hole are formed in the top of the reactor, stirring rotating speed is uniform, the gas-phase outlet is connected with a vacuum pump, the vent hole is connected with a hydrogen chloride gas buffer tank, the feeding hole is connected with a methanol high-level tank, and an inlet and an outlet are formed in thelower side of a reactor kettle and are respectively connected with a condensate water inlet and a condensate water outlet; and starting a vacuum pump to stir, introducing condensate water, switching on a bottom valve of the methanol high-level tank, and simultaneously opening a venting pneumatic valve so as to introduce hydrogen chloride gas. The method has the beneficial effects that hydrogen chloride gas can be substantially consumed, the procedure for recycling hydrochloric acid from hydrogen chloride is reduced, and the recycling cost is lowered; and the productivity of chloromethane is increased, and the benefit of an enterprise is increased.
Owner:ANHUI DONGZHI GUANGXIN AGROCHEMICAL CO LTD
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