116results about How to "Quickly move out" patented technology

The invention relates to a method for quickly detecting trace polychlorinated biphenyls (PCBs) based on a carbon nano tube modification technology, and belongs to the field of analysis and test. Based on the peculiar interaction mechanism among aromatic rings, a carbon nano tube has high capability of trapping the PCBs and low dispersibility in water, and how to quickly separate the carbon nano tube which has micro size and is used as an adsorbent from an analysis object mixture is a problem. The scheme aims to solve the problem. The carbon nano tube involved in the method is subjected to hydrophilic modification and combined with a hydrophilic magnetic nano material to form a composite nano adsorbent in which the modified carbon nano tube is taken as a main body and which has a magnetic response characteristic and high hydrophilicity, the adsorbent in which the PCBs are adsorbed can respond to the action of a magnetic field of a permanent magnet and is quickly separated from a solution, and the residual amount of the trace PCBs in an environment water body is quickly analyzed and detected by combining gas chromatography-mass spectrometry equipment.

The invention discloses a monolithic catalyst for synthesizing dimethyl carbonate. The catalyst is composed of active components Cu and Ni nanoparticles, a carrier that is a triphenylphosphine porouspolymer and a honeycomb ceramic matrix. The Cu and Ni nanoparticles are loaded on the triphenylphosphine porous polymer POP-PPh3, and the honeycomb ceramic matrix is coated with the triphenylphosphineporous polymer POP-PPh3 loaded with the CuNi nanoparticles to form the CuNi / POP-PPh3 monolithic catalyst. The application method comprises the following steps: putting the CuNi / POP-PPh3 monolithic catalyst into a steel pipe of a fixed bed reactor, and introducing CO2 for 5 minutes to remove other gases in a reaction system; heating to 120-180 DEG C, transporting the liquid methanol to a preheaterthrough a high-pressure constant-flow pump for gasification treatment, and reacting the mixture for 2-6 hours with the molar ratio of CH3OH to CO2 in the reaction gas being 1-3 to obtain the dimethylcarbonate. The monolithic catalyst provided by the invention is used for one-step synthesis of DMC from CO2 and methanol, and the yield of DMC exceeds 8%.

The invention provides a rapid and cheap method for producing compound magnetic flocculating agent and a method for fathering alga. The compound magnetic flocculating agent is composed of the reaction products of fly ash, hyperpure magnetite powder and concentrated hydrochloric acid and polymer chloridized aluminum and iron, which is capable of effectively absorb flocculating alga. The produced flocculating body is big and compact and precipitates rapidly. The alga flocculating body can be removed out of the water quickly via the foreign field, which can also apparently remove N and P from the water and solves the hazards from alga completely. The invention has extension and application foreground in the field of sea red current and lake eutrophication etc.

The invention belongs to the technical field of hydroxylamine hydrochloride, and discloses a process for preparing hydroxylamine hydrochloride by adopting an oxime acidolysis method. The method comprises the following steps: a) a raw material cache configuration process; b) an acidolysis reaction process; c) a ketoxime rectification process; d) a dehydration and drying process; e) an alcohol recycling process; and f) an acetaldehyde oximation process. By adopting the process, the process route and technical parameters of hydroxylamine hydrochloride production by methyl ethyl ketone acidolysis are optimized, a pervaporation coupling technology is applied, the product yield and quality can be improved, further improvement of the industrial technology is promoted, related industries can be driven to develop, and resource reasonable utilization can be realized.

The invention provides a continuous production process of perfluor-2-methyl-3-pentanone. The method specifically comprises the step of carrying out contact with reactants successively by taking hexafluoropropylene as a raw material to obtain a product, wherein the contact means that different materials in a reactor coexist with a time shorter than or equal to 600s. The continuous production process provided by the invention has the advantages of being cheap and easily available in raw material, simple to operate, high in degree of automation, high in synthetic yield, few in byproduct, short inreaction time and the like.

The invention provides a method and a device for preparing cumene hydroperoxide through cumene oxygenation. The method is characterized in that in a microreactor group formed by one microreactor or more microreactors connected in series, cumene and an initiating agent are supplied to a first microreactor in the first microreactor group, then a reaction product obtained after oxidizing reaction flows into a second microreactor in the first microreactor group for the oxidizing reaction, continuous flow type oxidizing reaction is carried out sequentially through recurrence till the reaction product finally flows into the last one microreactor for the oxidizing reaction, and purification is carried out finally; in every oxidizing reaction process, oxygen is supplied to all microreactors, and a mole ratio of cumene supplied to the first microreactor to the total oxygen supplied to all microreactors is 0.1:5. The problems that the reaction temperature fluctuation of the traditional technology is large, and the production efficiency and the productivity are low are solved.

The invention discloses a method for rapid analysis of trace polybrominated diphenyl ethers (PBDEs) in a water sample. The method is characterized by comprising the following steps: (1) dispersing a magnetic nano-material in the water sample for extraction; (2) attracting the magnetic nano-material to the bottom of a container by using a magnet and discarding supernatant; (3) eluting the magnetic nano-material by using dichloromethane; and (4) subjecting eluate to nitrogen blowing at normal temperature until the eluate is dried, redissolving the dried eluate with dichloromethane, taking a sample and introducing the sample into a GC-MC system for analysis. According to the invention, the magnetic nano-material is used as an adsorbent for enrichment of BDEs in a water body for the first time; GC-MC analysis is carried out after elution; and the detection method for rapid analysis of seven PBDEs in water is established. The method has low detection limit and is completely adaptable to trace detection of PBDEs in aquatic products.

The invention discloses a bean curd dicing machine. The bean curd dicing machine comprises a machine frame. An inlet end plane and an outlet end plane are arranged on the machine frame. A rotatable working tabletop moving up and down is arranged between the inlet end plane and the outlet end plane, a bean curd dicing machine tool assembly is arranged above the working tabletop, and a pushing plate for pushing a bean curd plate to move forwards is arranged on the inlet end plane. The bean curd dicing machine is further provided with a controller and a drive executing mechanism controlled by the controller, and the drive executing mechanism is used for operating the tool assembly, the working tabletop and the pushing plate. The bean curd dicing efficiency is high, operation is stable, bean curd cut faces are smooth and flat, no scraps are generated, and the bean curd dicing machine can be widely applied to the field of bean curd dicing machines.

The invention discloses a selective hydrogenation method for C5 fraction of an ethylene cracking by-product. The selective hydrogenation method comprises the following steps of (1) performing selective hydrogenation by using the C5 fraction of the ethylene cracking by-product as a raw material to remove alkadiene and alkyne, wherein catalyst is arranged in 3-5 reaction sections along flow direction of reaction materials; catalyst volume content in each reaction section is increased by 5-30% than that in the former adjacent reaction section successively; the amount of the catalyst in a first section is 8%-20% of a total volume of the catalyst; and the amount of the catalyst in last section is 40%-65% of the total volume of the catalyst; (2) adding a diluent in the raw material, wherein the diluent is a saturated alkane; and (3) adding a polymerization inhibitor selectively in the raw material. The method can remove alkadiene and alkyne from the C5 fraction with high content of alkadiene and alkyne via selective hydrogenation, simultaneously solves the easy coking problem of the catalyst, and can guarantee that a reaction apparatus runs stably for a long time.

The invention discloses a die changing trolley of a press machine in the field of press machines. The die changing trolley comprises a trolley body; the bottom of the trolley body is provided with wheels, the trolley body is provided with a driving mechanism, a pair of die carrier guide rails and a die carrier pushing-pulling mechanism, the die carrier pushing-pulling mechanism comprises a pushing-pulling motor, the output end of the pushing-pulling motor is provided with a belt pulley I, and the belt pulley I is connected with a belt pulley II in a driving way through a belt to which a sliding pothook is connected; the lower part of a die carrier is provided with double rows of die carrier rollers, the trolley body is provided with a die carrier limiting mechanism comprising a base plate, the base plate is provided with a slide wheel axle which is rotatably connected with a side wheel, and the upper end of the side wheel axle is provided with a pressing plate; and the trolley body is provided with a die carrier lifting mechanism in parallel, the die carrier lifting mechanism comprises a roller carrier controlled by a hydraulic cylinder to lift, horizontal rollers are horizontally arranged on the roller carrier, and roller shafts of the horizontal rollers are parallel to the die carrier guide rails. By using the die changing trolley, the die carrier of the press machine can be rapidly changed, the die changing time can be shortened, and the die changing efficiency can be increased.

The invention provides an OpenStack-based computational resource capacity elasticity telescoping method and system. The method involves capacity expanding and capacity reducing and includes the following steps: 1) capacity expanding: namely a step of 1-1) making a computational node mirror template and a switch network configuration template; 1-2) determining a number of hosts and network segmentsto be expanded, determining management IPs and host names of the hosts, restoring the hosts in batches to a computational node operating system with different management IPs and host names accordingto computational node mirror template, and automatically modifying a configuration file; and 1-3) uploading the switch network configuration template to a switch of a restored computational node, andloading to make computational nodes communicate with network and join OpenStack computational resources; and 2) capacity reducing: namely a step of 2-1) determining computational nodes to be removed,transferring or releasing virtual machines on the computational nodes, and clearing configuration information corresponding to switch ports; and 2-2) removing basic information and computing related services of the processed computational nodes from an OpenStack cloud platform.

The invention discloses a method for effectively controlling algae bloom in eutrophic lakes and a floating floor of a magnetic precipitating machine; polymeric aluminum ferric chloride, ferric sulfate and ultrapure magnetite powder are uniformly blended according to a certain weight proportion and are prepared into magnetic algaecide by compounding and then the magnetic algaecide, together with water, is prepared into suspension; the suspension is blended with flowing algae-containing lake water and then algae is collected, precipitated and removed. The structure of the floating floor of the magnetic precipitating machine is as follows: the side surface of a boat hull is connected with a fluidizing tank, the front end of the fluidizing tank is opened, flow baffles are arranged at the middle of the fluidizing tank in a staggered way, the area in front of the flow baffles is provided with a mixing tank, while the area behind the flow baffles is provided with a sewage collecting tank. The invention not only can effectively flocculate algae cells and granular nitrogen-phosphorus suspended matters in water, but also can transform water-soluble phosphate radicals into slightly soluble phosphate to be flocculated. The adoption of the floating floor of the magnetic precipitating machine can greatly shorten the precipitating time of floccus, can reduce the length of a subsider and improve treatment efficiency, thus being suitable for the treatment of the eutrophic water body with large area.

The invention relates to a catalyst for preparing low-carbon olefin through Fischer-Tropsch synthesis and a preparation method of the catalyst, and mainly aims to solve the problems of low CO conversion rate and low-carbon olefin selectivity in reaction for preparing the low-carbon olefin through Fischer-Tropsch synthesis in the prior art. The invention adopts the following technical schemes: a composite oxide consisting of titanium oxide and alpha-aluminum oxide is adopted as a carrier, and an active component is loaded on the composite oxide carrier and contains a composition with the following chemical formula in an atomic ratio: Fe100AaBbCcOx, wherein A is selected from a transition metal of Mn, B is selected from at least one of alkali metals of Mg and Ca, and C is selected from at least one of K and Cs; the dosage of the composite oxide carrier is 20-80% of the weight of the catalyst; alpha-aluminum oxide contained in the composite oxide carrier accounts for 50-99% of the weight of the composite oxide carrier by weight. The catalyst disclosed by the invention well solves the problems, and can be applied to industrial production of low-carbon olefin prepared through Fischer-Tropsch synthesis.

The invention discloses a chemical reaction device, which comprises a reaction unit, a separation unit and a recovery unit, wherein the reaction unit, the separation unit and the recovery unit are sequentially connected; the reaction unit comprises a three-phase bubble bed synthesis reactor. The invention also discloses a reaction device and method for preparing methyl methacrylate. The device provided by the invention is used for preparing the methyl methacrylate, and has the advantages that the raw material conversion rate is high; the target product yield is high; the selectivity of the methyl methacrylate is high.

The invention provides an intelligent elevator capable of driving a plurality of lift cars to move circularly by utilizing gears. The intelligent elevator comprises lift cars, guide rails, a shaft, a synchronous motor set, a gear set, a lift car driving mechanism, a lift car reversing driving mechanism and a lift car storage region, wherein a supporting framework is arranged in the middle of the shaft and is used for bearing the synchronous motor set, the gear set, the lift car driving mechanism and the like; the inner part of the shaft is divided into a lift car ascending region, a lift car descending region, a top reversing region and a bottom reversing region; the intelligent elevator is characterized in that the lift cars further comprises a reversing lift car; a hook and an unhooking mechanism are arranged between the lift cars and the lift car driving mechanism; and the intelligent elevator is further provided with a central controller, and a first position sensor, a second position sensor, a lift car door control device, a delaying relay and the like. According to the intelligent elevator provided by the invention, a product combines software and hardware and the operation time and retention time of the elevator can be strictly controlled so that the utilization rate of the elevator is greatly improved.

The invention discloses a nano-array structured catalyst used for Fischer-Tropsch synthesis which comprises matrix and iron-oxide active components wherein iron-oxide active component: matrix = (2-20) mg: 1 cm <2>. The iron-oxide active component has a nano-array structure. The nano-array structured catalyst has an advantage of good temperature conductivity.

The invention discloses a continuous reaction device for preparing aldehyde through a hydroformylation reaction. The reaction device comprises a reaction unit, a separation unit and a circulation unit; the circulation unit is located between the reaction unit and the separation unit; the reaction unit is connected with the separation unit; and a catalyst is circulated between the reaction unit andthe separation unit through the circulation unit. The invention further discloses a method for preparing the aldehyde by adopting the reaction device. According to the method and device provided by the invention, the catalyst can be uninterruptedly and continuously recycled without being separated by external equipment, continuous production of the aldehyde can be realized, reaction heat can be rapidly removed, the progress of the hydroformylation reaction is facilitated, the conversion rate of raw materials is high, the yield of the target products is high, and the ratio of a n-configurationproduct to an iso-configuration product is high.

The invention discloses a method for producing n-butyl acetate in a microwave pipeline. The n-butanol and acetic acid with a molar ratio of 1:1-2 are used as raw materials to prepare a mixed solution; the mixed solution is pumped into a pipeline reactor with a metering pump The esterification reaction is carried out under microwave irradiation to obtain a crude product solution containing n-butyl acetate. The reaction pressure is normal pressure, the reaction temperature is 40-80°C, the reaction time is 2-15mins, and the power of the microwave generator is 300-600W. The crude product liquid containing n-butyl acetate is rectified, and the fractions at 124-126° C. are collected to obtain n-butyl acetate. Using the method of the present invention to produce n-butyl acetate has the characteristics of high conversion rate, simple and fast post-processing, no need to use catalysts and the like.

The invention discloses a micro-reaction device and a method for synthesizing ferroferric oxide nano-powder. The micro-reaction device comprises an upper cover plate and a lower bottom plate, as wellas a first micro heat exchanging plate, a microchannel reactor, and a second micro heat exchanging plate which are sequentially sealed between the above two plates, wherein the upper cover plate, thefirst micro heat exchanging plate, the microchannel reactor, the second micro heat exchanging plate and the lower bottom plate are sealed and connected in a melt welding manner; two reaction dispersion phase solutions are injected into the micro-reaction device by a microinjection pump and are subjected to interfacial precipitation reaction in a continuous phase of a carrier to obtain ideal ferroferric oxide nano-powder with high purity, controllable particle size and narrow size distribution. The method adopts a three-strand parallel feeding manner of dispersion phases and continuous phase, and independently controls each strand of feeding, so that the operation flexibility is increased, and the overall operation process is more controllable; meanwhile, various reaction stages are separately matched with one heat exchanging mode, so that the temperature required in each reaction stage is more precise and uniform.

The present invention provides a baby diaper production apparatus. The baby diaper production apparatus comprises a support seat; two first support plates symmetrically and fixedly mounted on the topof the support seat; a second support plate fixedly mounted between the two first support plates and positioned above the support seat; a rotating column rotatably mounted on the top of the second support plate and penetrating the second support plate; A threaded hole, the threaded hole being arranged at the top end of the rotating column; A screw threaded on the threaded hole, and the top end andthe bottom end of the screw extend outside the threaded hole; A sliding hole which is arranged at the top end of the screw rod. The urine non-wetting production equipment provided by the invention has the advantages of convenient use, one-time cutting and molding, and has the function of cleaning and collecting the dregs.

The invention belongs to the technical field of teaching supplies, and discloses a financial voucher display device for economic management teaching. The device comprises a pedestal, a telescoping rod, a supporting plate, a display box, an electric push rod, a teaching touch display screen, and a voucher collection box. Electric push rods are installed at the two ends of the base; a supporting plate is fixedly connected to the top ends of the electric push rods; a bearing seat is installed in the center of the supporting plate; and a supporting rotating shaft is installed in the center of thebottom of the display box through an installation seat. The display box is rotationally arranged on the supporting plate through the supporting rotating shaft, the display box can rotate in the teaching direction, and display operation at different angles is facilitated; the financial voucher on the surface can be quickly moved outwards, so that the financial voucher under the financial voucher can be displayed, and the financial voucher on the paper cannot be damaged in the moving process; meanwhile, the writing panel and the teaching touch display screen are matched for teaching writing andthe display screen is used for displaying and teaching electronic teaching contents, so that the teaching efficiency and quality are improved.

The invention relates to a reaction kettle for enhanced exothermic reaction, and belongs to the field of chemical engineering equipment, which solves the problem of poor mass transfer and heat transfer in the existing reaction kettle. The reaction kettle comprises an upper kettle body, a lower kettle body, a flange disc of the upper kettle body, a flange disc of the lower kettle body, a top liquidphase raw material inlet of the reaction kettle, a bottom liquid phase product outlet of the reaction kettle, a top vapor phase raw material inlet of the reaction kettle, a jacket, cooling water inlets of the jacket, cooling water outlets of the jacket, a flow guide cylinder, a baffle plate, a spiral pipe in the kettle, and an air distributor. The reaction kettle has the advantages that by arranging the air distributor and the flow guide cylinder, the size of air foam is small, the annular flow is formed in the reaction kettle, the air and liquid mass transfer can be favorably performed, andthe reaction rate is greatly improved; by arranging the multiple cooling water inlets and cooling water outlets in the jacket, the baffle plate and the spiral pipe in the kettle, the temperature of the cooling water is more uniformly distributed, the reaction heat can be quickly moved out of the kettle, and the enhanced exothermic reaction can be stably and quickly performed; the reaction kettle is suitable for the enhanced exothermic reaction with gas and liquid mass transfer, and the mass transfer and heat transfer efficiency is high.

The invention discloses biomass heating boiler complete equipment capable of carrying out uniform heating. The complete equipment comprises a first box body, a first box body opening is formed in theright side of the inner wall of the first box body, a second box body opening is formed in the left side of the inner wall of the first box body, a furnace body is in clearance fit with the inner wallof the first box body, furnace openings are formed above the right side and below the left side of the inner wall of the furnace body, and the bottom of a second rod body is fixedly connected with the top of the furnace body. The outer sides of two water inlet rings communicate with the left side and the right side of the inner wall of the first box body correspondingly, and the outer sides of the two water inlet rings communicate with valve bodies correspondingly. According to the biomass heating boiler capable of carrying out uniform heating, when the furnace body is heated and the bottom heated part is not at the middle point of the bottom of the furnace body, the furnace body can rotate, the heating area is increased, the furnace body can be uniformly heated, a third box body can be stably placed inside the first box body, and the third box body can be stably placed inside the first box body.

The invention discloses a method for adsorbing and removing phycobiliprotein and phycotoxin by utilizing high polymer complex modified fly ash, which comprises the following steps of: stirring and uniformly mixing fly ash, magnetite powder and concentrated hydrochloric acid according to a certain proportion, drying, pulverizing into powder, and mixing the powder with poly dimethyl diallyl ammonium chloride according to the mass part ratio of 1:1-2 to obtain a water processing agent; preparing a suspension from the water processing agent and water; and adding the suspension into waste water containing the phycotoxin and the phycobiliprotein according to the addition ratio of 100-250mg / L, stirring, settling, and then removing and collecting magnetic floccules in the waste water from a water body by utilizing an external magnetic field. The invention not only can effectively adsorb the flocculated phycotoxin and the phycobiliprotein, but also can rapidly remove algae from the water body through the action of the external magnetic field simultaneously and can be used as an emergency measure for reducing the harm brought by the phycotoxin and the phycobiliprotein.

The invention relates to a garbage can, in particular to a special vomiting garbage can for a gastroenterology department. The technical problem to be solved by the invention is to provide a special vomiting garbage can for a gastroenterology department, wherein the special vomiting garbage can can be rapidly moved out when needed by a patient and can fix a garbage bag, and a garbage can cover ofthe special vomiting garbage can is convenient to open. The special vomiting garbage can for the gastroenterology department comprises a bottom plate, a first bracket, a hand-pulling mechanism and a rotating mechanism, wherein one side of the bottom plate is relatively narrow; the first bracket is symmetrically welded at the relatively narrow side of the bottom plate; the hand-pulling mechanism isarranged at the top of the first bracket; and the rotating mechanism is arranged at one side of the bottom plate. According to the special vomiting garbage can for the gastroenterology department, the effects of rapidly moving out the garbage can when the patient needs the garbage can, conveniently opening the garbage can cover and fixing the garbage bag are achieved; and when the patient wants to throw up, the vomiting garbage can can be moved out under a bed only by pulling a handle, and the garbage can cover can be opened through a second pulling rope.

The invention relates to the technical field of acetylene processing emergency treatment devices, in particular to an emergency treatment device and method for acetylene processing. The emergency treatment device for acetylene processing comprises a box body, and a containing plate is arranged in an inner cavity of the box body; movable wheels are fixedly connected to the two sides of the front side of the bottom of the containing plate; sliding grooves used in cooperation with the movable wheels are formed in the bottom of the inner cavity of the box body; and a pushing mechanism used in cooperation with the containing plate is arranged at the bottom of the rear side of the box body. According to the emergency treatment device for acetylene processing, a stored dry powder extinguisher canbe rapidly moved out, the emergency treatment speed can be increased for a user, precious time for emergency treatment when the user faces a fire disaster is prevented from being delayed, the deviceis convenient for the user to use, and the problems that an existing emergency treatment device for acetylene processing is quite tedious in the using process, lots of time and energy of the user areconsumed, consequently, the emergency processing speed is influenced, the precious emergency processing time of the user is delayed, inconvenience is brought to the user, and the use for the user is influenced are solved.

The invention discloses a production method and production equipment of an organic electrolyte of a lithium ion battery. The production method comprises the steps of 1, preparing an electrolyte organic solvent in a solvent mixing tank; 2, conveying the electrolyte organic solvent in the solvent mixing tank to a pipeline according to a set flowing speed and enabling the pipeline to be immersed intoa freezing medium of a cooling system, wherein the pipeline is at least provided with a curve, and lithium salt adding openings are formed in the pipeline; and 3, when it is detected that the temperature of the electrolyte organic solvent is lowered to be minus 5 to 0 DEG C, adding lithium salt through the lithium salt adding openings, and after the lithium salt is dissolved, obtaining the organic electrolyte of the lithium ion battery. By virtue of the production method, the dissolving speed of the lithium salt is greatly improved, production efficiency is improved, agglomeration and deposition of the lithium salt also can be prevented, adaptivity on the lithium salt in the production process is improved, production cost is lowered and the cooling effect is improved.

The invention discloses a climbing type building construction operation platform outside a building. The climbing type building construction operation platform comprises a supporting frame, wherein driving mechanisms are connected to the upper portion and the lower portion of the front end of the supporting frame in a penetrating mode; a forward and reverse motor is fixedly installed on the lowerportion of the rear end of the supporting frame; the rear ends of the driving mechanisms are fixedly connected with the output end of the forward and reverse motor; a conveying belt is in transmissionconnection between the two driving mechanisms; supporting mechanisms are movably connected to the upper portions of the driving mechanisms; a fixing plate is movably connected between the two supporting mechanisms; a bottom plate and a stabilizing frame are fixedly welded to the lower portion of the front end of the fixing plate; an illuminating lamp placing frame is fixedly installed on the upper portion of the front end of the fixing plate; the stabilizing frame is located below the bottom plate and is fixedly installed together with the bottom plate; a transverse protection assembly is fixedly installed at the upper end of the bottom plate; and longitudinal protection assemblies are detachably installed on the left portion and the right portion of the transverse protection assembly correspondingly. The climbing type building construction operation platform outside the building is compact in structure, high in stability, accurate and convenient to adjust, safe and reliable.