140results about How to "Reduce upfront investment" patented technology

An electric car with the changeable electric accumulator sets is composed of main body, fixed more than one set of exchangeable electric accumulators, motors, wheels and running unit. Said accumulators are electrically connected to motors. A running system for the electric cars in whole country is also disclosed, which is composed of the service stations for discharging the accumulators or providing the newly charged accumulators.

The invention relates to a ceramic composite for 3D printing and a preparation method thereof. The ceramic composite for 3D printing is characterized by comprising the following components according to parts by weight: 20-45 parts of acrylate monomer, 121-165 parts of ceramic powder, 10-20 parts of spiro-orthocarbonate expansive monomer, 2-14 parts of a dispersant, 1-3 parts of a photo-initiator, 0-3 parts of a photo-inhibitor, and 1-3 parts of an ultraviolet absorber. The ceramic composite for 3D printing is low in curing and contraction degree and short in curing time and therefore is applicable to investment casting.

The invention relates to a proton treatment system based on a cyclotron, which includes a proton cyclotron (1) and a main proton beam transport system (2) for conveying protons in the proton cyclotron. The main proton beam transport system (2) respectively conveys the protons with required energy to three treatment rooms with different paths through a switch magnet (6). The three treatment rooms with different paths include a rotary frame treatment room (3), a horizontal beam-vertical beam double-fixing-beam treatment room (4) and a horizontal beam-incline beam double-fixing-beam treatment room (5), wherein the horizontal beam-vertical beam double-fixing-beam treatment room (4) and the horizontal beam-incline beam double-fixing-beam treatment room (5) are arranged at both sides of the rotary frame treatment room (3). The occupation space of a proton treatment device is reduced and the construction cost of a proton treatment apparatus is lowered by employing the proton treatment system. The proton treatment system based on the cyclotron has the compact structure and guarantees the treatment effect.

The invention relates to a plasma garbage gasification device and process. The device comprises a gasification reaction chamber, a steam heat exchanger, a steam buffer tank, an air buffer tank, an inner and outer double-cyclone heat exchanging dust collector, a cooling tower, a hydrogen sulfide removal sprayer, a water ring compressor, a gas-water separator, a gas storage tank and a control system of the device, which are connected through a gas pipeline; the gasification reaction chamber comprises an automatic feeding device, an automatic ignition device, a primary gasification zone and a plasma reaction zone; and the plasma reaction zone consists of a secondary refining zone and a gas refining zone. The process comprises the following steps of: gas generation; gasification medium preheating; gas purifying and filtering; and gas compression and storage. The invention has the characteristics of simple structural design, reasonable energy efficiency utilization, low primary input cost and low power consumption, and particularly, harmful substances such as dioxin and the like generated in the gasification process can be effectively removed, the volume reduction ratio is increased, and the waste is turned into the wealth.

The invention relates to an enhanced car roof sound-insulation heat-insulation mat and a manufacturing method thereof. The sound-insulation heat-insulation mat is of a five-layer structure; an upper surface layer and a lower surface layer are film non-woven fabrics; a middle layer is a polyurethane foaming sound-insulation heat-insulation layer with the density of 50 Kg / m3; glass fiber layers are arranged between the middle layer and the upper surface layer and the lower surface layer; polyurethane heat-curable adhesive tapes are laid on a surface of the upper surface layer or the lower surface layer; and the polyurethane heat-curable adhesive tapes are long-bar-shaped and are laid on the upper surface layer or the lower surface layer at intervals. Compared with the prior art, the sound-insulation mat is made of the polyurethane foaming sound-insulation heat-insulation material layer, and thereby achieving noise absorption and attenuation; the laid polyurethane heat-curable adhesive tapes can enhance the rigidity of the car roof and lightening the weight of the whole car; and for main engine plants, the installation technique is simplified, and the investment in an early stage can be decreased.

The invention discloses an intelligentized mobile vehicle-mounted remote crop digital image acquisition system and a method thereof, belonging to the field of intelligentized agricultural machinery. The system consists of a client, a server and digital image acquisition and processing equipment. Under the action of a controller of the digital image acquisition and processing equipment, the digital image acquisition and processing equipment can freely move in horizontal and vertical directions and perform 360-degree omnibearing rotation, and accurately acquires a position image of a crop object, the image is decoded and compressed, then is transmitted to the server by a 3G wireless module, and is stored in a data processing module on a mainboard of the controller; or the acquired image is directly analyzed and processed by the controller. The intelligentized mobile vehicle-mounted remote crop digital image acquisition system is high in intelligentization degree, low in cost, good in equipment mobility and capable of accurately acquiring and wirelessly transmitting images of different parts of the crop in an omnibearing and multi-angle way, and provides a basis for analyzing crop growth information, plant disease and insect pest information and other information.

The invention belongs to the technical field of biomass fuel and preparation thereof, and particularly discloses cotton stalk core biomass compression fuel. In the fuel, the cotton stalk core content is 85 to 90 percent, the compressed density of the fuel is 1,100 to 1,400kg / m<3>, the relaxed density is 700 to 900kg / m<3>, and the water content is 8 to 12 percent. The preparation method comprises the following steps of: using the cotton stalks, of which the water content is below 12 percent, as a raw material; performing separating treatment by a cotton stalk skin-core separating machine; crushing the separated cotton stalk cores; molding the cotton stalk cores by compression under a pressure of 70 to 100MPa; and performing cooling and packaging to obtain the finished products, wherein thebyproducts of cotton stalk skin obtained by separation can also be used for spinning and paper-making, so that the comprehensive utilization of the cotton stalks is realized. The cotton stalk core biomass compression fuel has the advantages of high heat efficiency, low ash content, little pollution, no damage to a boiler, convenient transportation and storage and the like; and the process method has the advantages of high process efficiency, low equipment cost, low production cost, good product quality and the like.

The invention discloses an electric power telemechanical apparatus RTU and a method for realizing the automatic voltage control of the power plant. The inventive electric power telemechanical apparatus includes a central control module, a remote signalling module, a telemetering module, a remote regulating module and a remote control module, wherein the central control module includes a communication submodule, a data bank submodule and an automatic voltage control submodule, which generates the control signal for adjusting the wattless production output of the generating set, based on the data stored in the data bank submodule, and transmits the control signals to the remote regulating module or the remote control module through the communication submodule, then transmits to the generating set which participates in the voltage control through the remote regulating module or the remote control module, realizes the automatic voltage control. The invention gives full play to the function of the electric power telemechanical apparatus, reduces the amount of the situ hardware units, increases the operational precision of the data in the AVC adjusting process.

An OFDM-based broadband access system of a cable television network is provided, which comprises a CATV photoreceiver, a television, an OFDM-based coaxial cable exchanger, a data mixer, a data jumper, a CATV distribution network, and an OFDM-based data terminal. The OFDM-based coaxial cable exchanger comprises an Ethernet optoelectronic converter, an OFDM modulation / modulation module, a power supply module, an Ethernet interface unit, an Ethernet reception / transmission unit, a CPU, a radio-frequency reception / transmission unit, a test signal source, and a radio-frequency interface unit. The invention has the advantages that the common cable transmission of television signal and data signal is realized; the OFDM modulation technique helps to enhance the system resistance to noise and ensure the system operation more stable and reliable; and the value of the existing cable television network is increased with low investment.

The invention discloses a lifting drive mechanism of a travelling crane. The lifting drive mechanism of the travelling crane comprises a hydraulic oil cylinder and a lifting beam, wherein the top surface of a main beam of the travelling crane is provided with a drive shaft, a driven shaft located at left and right of the drive shaft and a gear rack pair; big chain wheels located at the front side and the back side of a gear are arranged on the drive shaft; the driven shaft is provided with small chain wheels corresponding to the big chain wheels and a lifting wheel; the big chain wheels and the small chain wheels are connected by chain rings; the top surface of the main beam of the travelling crane is provided with two first guide wheels respectively corresponding to two lifting wheels; two second guide wheels are arranged at the left and the right of the lifting beam; the main beam is connected with two lifting ropes to correspond to the two second guide wheels; each lifting rope passes through the second guide wheel, the lifting wheel and the first guide wheel all of which are at the same side; and the terminal of each lifting rope is connected with a balancing weight. Therefore, the maximum stroke of the hydraulic oil cylinder can be smaller than the maximum lifting distance, and the investment at the early stage and the use cost at the later stage of the hydraulic oil cylinder can be decreased. According to the force-saving principle of pulleys, the lifting drive mechanism of the travelling crane, disclosed by the invention, is good for protecting the hydraulic oil cylinder.

The invention discloses a high-heat-density inter-column cooling air-conditioning unit, belongs to air-conditioning refrigerating units, and aims to solve the problems that a central air-conditioning system in the prior art has over-high input initially, and the energy-saving effect is not obvious, and the restriction to a machine room with dense equipment by a fresh air system is over high. The high-heat-density inter-column cooling air-conditioning unit comprises a control system, an outdoor machine as well as an indoor machine, wherein the control system controls an air-conditioning machine set to run; the outdoor machine is composed of a condenser and an axial flow fan for radiating heat for the condenser; the indoor machine is mainly composed of a compressor, a liquid storage device, a drying filter, an expansion valve, an evaporator and a centrifugal fan for exchanging heat with the evaporator; and the compressor, the condenser, the liquid storage device, the drying filter, the expansion valve and the evaporator are sequentially connected through a transmission pipeline and form a loop. The invention also discloses an applying method of the air-conditioning unit. Through the conversion of cooling modes, energy is saved greatly, energy conservation and emission reduction are realized, the machine room is not required to be modified in a large scale, and thus the cost is saved.

The invention relates to a vacuum encapsulation technology for a transformer, which comprises the following steps: 1. an epoxy adhesive of A component and a device to be encapsulated are preheated in an oven for 2h to 4h, with the temperature of the oven set as 80 DEG C to 100 DEG C; 2. the epoxy adhesive of A component, which can be stirred after being preheated, is stirred; 3. after being stirred, the epoxy adhesive of A component is matched with an epoxy adhesive of B component according to a certain proportion, then mixed together and stirred fully; 4. the preheated device is taken out and the matched epoxy adhesives are poured into the shell of the device so as to lead the surface of the adhesives to reach the height of a wire wrap; 5. the device is put into a vacuum pump and vacuumized for 10 minutes; 6. the device is taken out and dried in the oven; 7. 2 hours later, the oven is opened to check whether the elasticity of the adhesive surface of the device is in a wiredrawing state; if so, a secondary encapsulation is conducted so as to cause the height of the adhesive surface of the device to meet the final requirements of drawings; and 8. after the secondary encapsulation, the device is sent into the oven again and dried. With the method of two times of encapsulations manually, the transformer after being encapsulated has no blister internally and is good in appearance, with electrical property up to the same level of the vacuum encapsulating machine.

The invention discloses an efficient energy-saving multi-stage heat and humidity treatment air conditioning device and a treatment method thereof. The device comprises a refrigeration circulation component, an air circulation component, and an air heat and humidity treatment component. The refrigeration circulation component comprises a high-temperature stage refrigerator unit, a low-temperature stage refrigerator unit, a high-temperature stage refrigerant delivery pump, a high-temperature stage refrigerant circulation pipeline, a low-temperature stage refrigerant delivery pump, a low-temperature stage refrigerant circulation pipeline, a high-temperature stage primary cooling and dehumidifying refrigerant supply automatic regulating valve, a low-temperature stage secondary cooling and dehumidifying refrigerant supply automatic regulating valve, and a high-temperature stage cooling refrigerant supply automatic regulating valve. Aiming at the defects that the conventional air heat and humidity treatment is substantially high in energy consumption, severe in resource waste, and pollutive to environment, or the like, a reasonable air heat and humidity treatment device is provided, accordingly increasing the utilization ratio of energy resources, reducing the resource waste, reducing the emission, and protecting the environment.

Method for preparing glycidyl methacrylate which comprises two steps, (1) reacting methacrylic acid and caustic alkali in water dissolvent, obtaining the alkali metal salt of methacrylic acid, (2) preparing crude product of glycidyl methacrylate from the alkali metal salt of methacrylic acid and epichlorohydrin at the presence of inhibitor and catalyst, filtering, charging diethyl phthalate, vacuum distilling to obtain the refined product.

The invention discloses an indoor positioning method based on a geomagnetic spectrum and a positioning system. The method comprises the following steps: utilizing the difference of the geomagnetic field at different points to store the indoor geomagnetic information and the corresponding position information thereof so as to form a geomagnetic fingerprint database; collecting the indoor geomagnetic information of a to-be-positioned target in real time; utilizing an adaptive genetic particle filter algorithm to perform geomagnetic fingerprint matching on the geomagnetic information of the to-be-positioned target; detecting a moving behavior of the to-be-positioned target; and updating the particle importance weight according to the moving behavior and tracking the target position in real time. According to the invention, the adaptive genetic particle filter algorithm is selected for matching the geomagnetic signal, the problems of particle degeneracy and particle shortage can be effectively solved, the positioning precision and the particle adaptability are promoted, the indoor position sharing service between the users can be realized and the method has a wider application prospect and higher social practical value.

The invention relates to a horizontal plasma garbage gasification reaction chamber and a gasification technology thereof. The reaction chamber comprises an automatic loading apparatus, a primary gasification zone, a plasma reaction zone, an automatic ignition device, a furnace temperature monitoring system, a furnace level monitoring system, an inlet and outlet gas temperature monitoring system, an inlet and outlet gas pressure monitoring system and a flame monitoring system. The primary gasification zone is provided with a rasping moving grate, a chain type adjusting and self-levelling apparatus; and the plasma reaction zone is a fission structure comprising a second thining zone and a gas fining cell. The gasification technology comprises the following steps of: automatic loading; primary gasification; plasma second thining; and plasma gas refining. According to the invention, gas is generated from calorific value of the garbage; the generated gas and slag are further processed by aplasma torch to remove harmful substances therein and increase gas output, reduce waste residue discharge, lower one-time investment cost and operating cost of garbage gasification and purify the gas.

The present invention discloses a fully-automatic uncoiling leveling laser cutting blank automatic stacking intelligent manufacturing production line, comprising an unreeling machine, a leveler, a buffering device, a finishing mechanism and a stacking system sequentially arranged on the moving track of a slab to be processed, further comprising a laser cutting system; and the laser cutting systemis arranged behind the finishing mechanism. The fully-automatic uncoiling leveling laser cutting blank automatic stacking intelligent manufacturing production line is applicable to the intelligent manufacturing of steel and steel panels required in the industries of automobiles, electric appliances and the like, the traditional large plate metal processing equipment performs machining by taking punching as power, a new die needs to be designed when a new product is developed, the development cost is high and the development period is long, the manufacturing of a new product can be completed ina short period of time by introducing the intelligent laser cutting system into the production line, thus only product data are required to be provided when the new product is developed, and the fully-automatic uncoiling leveling laser cutting blank automatic stacking intelligent manufacturing production line has the advantages of low early-state investment, low maintenance and operation costs, high laying-off accuracy, good product quality, green energy conservation and the like.

The invention provides a platform crane collision prevention system and method. The platform crane collision prevention system includes a collection device and a control device; the collection deviceis used for collecting position information of a cantilever of a crane and position information of an obstacle on a platform; the control device is in communication connection with the collection device and is used for obtaining relative position relations between the obstacle and the cantilever according to the position information and structure information of the obstacle and the position information and structure information of the cantilever, and according to the position relations, alarm signals, signals for controlling the cantilever to stop moving downwards or signals for controlling the crane to stop rotating are given. By the adoption of the platform crane collision prevention system and method, detection limitation of traditional external sensors is broken, and by calculating andjudging the collected position information and structure information of the cantilever of the crane and the collected position information and structure information of the obstacle on the platform, acollision prevention function of the crane on the platform is achieved and optimized; the platform crane collision prevention system and method have the advantages of being low in investment, easy tomaintain and debug and stable and reliable in performance.

The invention discloses a method for processing the gear form of a connecting rod of a diesel engine, and a special processing cutter. The method is to use a milling processing method to mill the gear forms of a connecting rod body and a connecting rod cover of the diesel engine, the milling processing method has good processing quality and high processing efficiency, the shapes of the processed gear forms of the connecting body and the connecting cover have good consistency, the contact area after pairing and matching is large, and e contact points are even. The special cutter is a milling cutter for milling the gear forms of the connecting body and the connecting cover of the diesel engine, and in particular is a formed ball head taper shank cutter, wherein the molded lines formed by the rotary cuttings of cutting edges are consistent with the molded lines of the gear form of the connecting rod, the tool bit groove type of the formed ball head taper shank cutter is spirality of 35 degrees, the number of the cutting edges is two, the proper alignment of the cutting edges and the tool shank is within 0.01 millimeter, the cutter material is stable and high wear resistant ultrafine particle hard alloy, and the cutting edges adopt TiAlN coating. The special cutter has the characteristics of high wear resistance, stable performance, short manufacturing cycle, and low cost.

The invention discloses a mining overburden rock motion law in-situ observation drill hole layout method, which is suitable to be used in the field of mining engineering. The mining overburden rock motion law in-situ observation drill hole layout method comprises the steps of: determining a longitudinal overlapping region of fracture ranges of critical layers of an overburden rock by utilizing a critical layer theory; further determining in-situ observation drill hole layout positions and distance between drill holes at a working surface initial mining stage and a working surface overburden rock periodic fracture period, that is, fracture motion of multiple layers and even all the critical layers of the overburden rock can be observed with the minimal ground drill hole number; and providing a mining overburden rock motion law in-situ observation drill hole layout scheme based on the effect achieve in the step 2. The mining overburden rock motion law in-situ observation drill hole layout method avoids the blindness and randomness of drill hole position determination in a traditional method, greatly improves reliability and utilization rate of ground drill holes for observing a mining overburden rock motion law since the real-time monitoring of the overburden rock multiple critical layer fracture motion can be achieved by a single drill hole, achieves a research target with the minimal ground drill hole number, and ensures the realization of maximum economic benefit.

The invention discloses health camembert cheese and a preparation method thereof. The method comprises the following steps: (1) sterilizing raw milk and then cooling to obtain processed milk, inoculating the processed milk with a lactic acid bacteria starter and monascus spore liquid, fermenting until the pH of the material liquid is 6.2 to 6.4, and then adding chymosin and mixing to obtain milk curd, wherein monascus refers to monascus purpureus strain with storage number of CGMCC (China General Microbiological Culture Collection Center) No.8120; and (2) cutting the milk curd obtained in step (1) into blocks, agitating and removing whey, adding salt to the milk curd after whey is removed, uniformly agitating, feeding into a die to form, standing to further remove the whey, soaking with a spore solution of cryytococcus neoformans and / or pcnicillium candidium, drying and then curing to obtain the health camembert cheese. According to the health camembert cheese, the taste is easily accepted by Chinese consumers; the health camembert cheese contains high-content gamma-aminobutyric acid, monacolin and other functional active ingredients; in addition, citrinin is small in output, so that the nutritional value is raised, and the biosecurity is improved.

The invention aims at providing a high-capacity viscose staple fiber post-treatment production line in order to reach the annual yield of 100 thousand tons. The production line comprises a refining system and a drying system. A refiner in the refining system comprises a refining section and an oiling section. The high-capacity viscose staple fiber post-treatment production line is characterized in that the breadth of the refiner of the refining system is 4000mm, the refining section is divided into 13-18 process areas, the oiling section is divided into 2 process areas and the length of a single process area is 2500mm. The viscose staple fiber post-treatment production line comprises the refining system and the drying system, and has the advantages that the production capacity is strong, the operation stability is high, the automation level is high and the product quality is guaranteed.

The invention discloses an air blowing type vacuum sucking disc and a vacuum adsorption device with the air blowing type vacuum sucking disc. The air blowing type vacuum sucking disc comprises an inner barrel, an adsorption disc which is arranged at the bottom of the inner barrel and covers an opening in the bottom of the inner barrel, and an outer barrel which is arranged outside the inner barrel in a sleeving manner, wherein negative pressure holes are formed in the side wall of the inner barrel; the inner barrel is provided with unidirectional sealing elements used for unidirectionally sealing the negative pressure holes; the unidirectional sealing elements prevent airflow from flowing from the outer side of the inner barrel into the inner barrel through the negative pressure holes; the adsorption disc is provided with suction holes; exhaust holes are formed in the side wall of the outer barrel; the exhaust holes are positioned below the negative pressure holes; and the bottom of the outer barrel and the bottom of the inner barrel are hermetically connected. According to the novel-structure vacuum sucking disc provided by the invention, ordinary vacuum sucking discs are made vacuum through extracting air with a vacuum machine; and in the air blowing type vacuum sucking disc, an air compressor is adopted to generate compressed air, the compressed air flows directionally at a high speed, and a vacuum state is achieved, namely, the vacuum state is achieved through adopting an air blowing method.

This invention discloses a Taxi calling display system including telephone with open address, computer system, radio transmission system, radio receiving system mounted on the car and a phone with open address, when using assigned phone number to call, an electronic map will display the street position the calling phone situates and the driver with know the calling street position, with the character of low cost, accurate location and convenient maintenance, which can be widely used in Taxi and 119, 110, 120 public service.

The invention discloses a micro-reactor and a method for producing low-carbon olefin from petroleum hydrocarbon. The micro-reactor comprises a micro-reactor inlet (11), a gas collecting chamber (13),a collecting chamber (18), a micro-reactor outlet (12), reaction layers (101) and heat exchange layers (14), wherein the reaction layers (101) and the heat exchange layers (14) are arranged at intervals, a plurality of micro-reaction channels (19) are arranged in the reaction layers in parallel, the micro-reactor inlet (11) is sequentially communicated with the micro-reactor outlet (12) through the gas collecting chamber (13), the multiple micro-reaction channels (19) and the collecting chamber (18), the heat exchange layer (14) is a hollow cuboid, one side of the heat exchange layer (14) is communicated with a heat exchange medium inlet (15), and the other side of the heat exchange layer (14) is communicated with a heat exchange medium outlet (16). The micro-reactor provided by the invention is suitable for being used as a reactor for producing low-carbon olefin from petroleum hydrocarbon, has high heat exchange efficiency, can stably control the reaction temperature, and effectivelyimproves the conversion rate of raw materials and the selectivity of ethylene and propylene.

The invention discloses a method utilizing petroleum coke powder to prepare petroleum type coke, a product and equipment thereof. Powdered coke is taken as the raw material, and a binding agent, a desulfurizer, and other additives are added during the manufacturing process to ensure the cold strength, heat stability, heat intensity, and activity of the petroleum type coke. Through experimental tests, it is found that the prepared petroleum type coke product has the advantages of high mechanical strength, good heat intensity and heat stability, low ash fusion point, and low sulfur content. Moreover, the pollution is little during the production and using processes. The processing cost and frontend investment are relatively low. The method can satisfy the massive production requirements in the gas production industry and limekilns, and has an important economic and social meaning. The invention further discloses equipment for producing the petroleum type coke.

The invention provides a measure and control device for collecting and storing data, which is characterized by comprising a central control module, wherein the central control module comprises a communication module and a databank module, the communication module carries out data communication between a main station or a monitoring collector and the databank module, the databank module is used for storing the collected data and carries out data interaction with the communication module, the databank module comprises a real-time databank submodule, a history databank submodule and a calculation amount databank submodule, wherein the real-time databank submodule is used for storing real-time data, the history databank submodule is used for storing history data, and the measure and control device also comprises a data calculation module and a supply and collect module. The invention also provides a method for collecting and storing data. The device and the method complete real-time data collection, data storage and data transmission on one measure and control device, reduces the data loss, and improves the data reliability.

The invention belongs to the technical field of automobile coating and specially relates to water-based high temperature plain colored paint capable of being used for a wet-on-wet middle-coating-freesystem and a preparation method thereof. The water-based high temperature plain colored paint capable of being used for the wet-on-wet middle-coating-free system includes an A component and a B component, wherein the A component includes aqueous acrylic acid polyol dispersion, aqueous polyurethane dispersion, ultrafine talc powder, ultrafine barium sulfate, aluminum triphosphate, titanium dioxide,carbon black, an aqueous dispersant, methylated amino resin and pure water; and the B component includes the aqueous acrylic acid polyol dispersion, the aqueous polyurethane dispersion, an amine neutralizer, ethylene glycol butyl ether, titanium dioxide, a dispersant, methylated amino resin, a thickening agent and pure water. The water-based high temperature plain colored paint capable of being used for the wet-on-wet middle-coating-free system has excellent properties, strong paint film adhesion, high paint film hardness, and good water resistance, acid resistance, alkali resistance, weatherresistance and stone-chipping resistance, and environmental protection.

The invention provides a large-scale production process for preparing a beta-crystal form polyvinylidene fluoride hollow fiber membrane by an improved TIPS method and the polyvinylidene fluoride hollow fiber membrane prepared by the preparation method. According to the method, an existing high-speed mixer is used for mixing and stirring materials, a twin-screw extruder is used for heating, melting, meshing and modifying the materials, and the materials are extruded by a granulation die head, cooled, formed, granulated, bagged and stored into a semi-finished product; similarly, the twin-screw extruder is additionally provided with a melt metering pump for metering and pressurizing, a spinning die head is replaced, the process is adjusted, and hollow fiber nascent filaments can be produced by using the granules; by carrying out stretching and annealing shaping combined post-treatment on the obtained hollow fiber membrane filaments, on the premise of ensuring high strength, hydrophilicityand high flux of the beta-crystal structured polyvinylidene fluoride product, the process is simpler, the production efficiency is higher, the membrane filament quality is more stable, and the product is particularly suitable for membrane bioreactors with higher requirements on the membrane filament strength and the membrane flux.

The invention discloses a front-end processor system and a method for comprehensive management of a remote power distribution room. The system comprises an access module, a management module, a service module, a data interface module and a kernel database. The method comprises the following steps of: firstly, accessing a front-end processor system portal through a network by a client; carrying out unified identity authentication on the client by the front-end processor system, if the client is an invalid user, denying the access, and if the client is a valid user, analyzing the loads and the communication of a client area and each service application platform to select an optimal service application platform for the client; then, sending the uniform resource locator (URL) of the sub-service application platform to the client, and directly accessing the sub-service application platform through the received URL by the client; carrying out identity authentication again on the client by the sub-service application platform; and if the client is an invalid user, denying the access, and if the client is a valid user, providing service for the client and simultaneously synchronizing the database in real time together with the front-end processor system by the sub-service application platform. The invention improves the stability of client connection, saves the front-end investment, and has better expansibility.