70results about How to "Improve continuous stability" patented technology

The invention provides a grouper environmentally-friendly soft granulated feed and a preparation method thereof. The grouper environmentally-friendly soft granulated feed comprises the following nutritional components in percentage by weight: 40 to 50 percent of crude protein, 6 to 12 percent of crude fat, 8 to 15 percent of crude ash, 22 to 28 percent of carbohydrate, and 6 to 10 percent of moisture. According to the invention, the high-quality grouper environmentally-friendly soft granulated feed is studied, popularized and applied, so that the nutrition of the launched feed goes to be complete and balanced, and the palatability of the feed is good, not only can the feed digestive absorption rate of grouper be improved, but also the survival rate and growing speed of the grouper are improved, and the fish quality is improved. Therefore, non-polluted fish products are produced, and the cultivation economical benefit is improved; and the feed has active and profound significance in reducing the usage of small trash fish, lightening the sea area pollution, protecting the marine eco-environment, and promoting the sustained stable and health development of the marine fish culture industry.

The invention discloses headlamp adaptive control method and device. The method comprises the steps of: (1) acquiring the current speed v of an automobile in real time, and acquiring the safe stopping distance S of the automobile at the current speed; (2) acquiring a horizontal deflection angle omega corresponding to the optimum lighting position of the headlamp; (3) acquiring a vertical deflection angle beta corresponding to the optimum lighting position of the headlamp; and (4) outputting control signals to control the turning of the headlamp in real time. The device comprises a control unit (1), and a detection unit (2) and a driving mechanism (3) which are respectively connected with the control unit (1), wherein the detection unit (2) comprises a speed sensor (21), a steering wheel angel sensor (22), a front ride height sensor (23), a rear ride height sensor (24), a sunshine and rain sensor (25) and an acceleration sensor (26). The invention has the advantages of large lighting range, good lighting effect, no reflected glare, simple structure, accurate control, good environmental suitability, safety, reliability and comfortable drive.

Disclosed are a composite floatation collector and a preparation method thereof. The composite floatation collector is composed of phthalate, hydrocarbon type oil and high-carbon oxygen-containing organic compound according to the mass ratio of 2-10:10:2-10. The composite floatation collector has the advantages of fine low-temperature liquidity, fast bubbling, long duration of bubbling, fine dispersibility in pulp, high collecting capacity to coarse-grade mineral or ultrafine-grade mineral and the like, and is used for recovering molybdenum from molybdenum ore and copper-molybdenum ore and recovering coal from coal ore by means of floatation efficiently.

The invention relates to a multilayer compound eccentric-wear-preventing continuous sucker rod and a manufacturing device and a manufacturing method thereof. The sucker rod is characterized in that one section or several sections of the external surface of a fiber reinforced resin matrix composite rod body are respectively covered with a thermosetting wear layer; each thermosetting wear layer is made from one of polyurethane, a fluorocarbon coating, modified epoxide resin, vinylester resin, unsaturated polyester and phenolic resin; by adopting a manufacturing technology of multilayer composite winding and pultrusion or weaving and pultrusion, an internal layer of longitudinal fibers, an intertwining layer or a weaving layer and an external layer of longitudinal fibers are formed from interior to exterior in sequence; the manufactured rod body has a continuous length of 0-5000m. The sucker rod has the beneficial effects that the radial strength and the axial compressive strength are enhanced; the corrosion resistance and the eccentric wear resistance of the thermosetting wear layers are improved by 30%; the maximum temperature tolerance of the thermosetting wear layers is up to 190 DEG C; meanwhile, the bonding between an sucker rod body and each thermosetting wear layer is greater in length and quite high in strength, so that the slippage and the layering of an eccentric-wear-preventing layer from the surface of the sucker rod in the normal operation of an oil well are avoided.

The invention relates to a fibre reinforced composite anti-eccentric coiled rod and a preparation device thereof. The technical scheme adopted by the invention is as follows: one or more sections of the external surface of a fibre-reinforced resin matrix composite rod body is coated with a thermoplastic wear layer; the rod body is made of one of fibreglass, carbon fibre and basalt fibre; and a resin matrix is one of epoxy resin, urethane resin and vinyl ester resin. A plastic extruder and a cooling device are arranged between a draw gear and a winding device, the plastic extruder is used for coating one thermoplastic wear layer on one or more sections of the surface of a molded sucker rod, and then the cooling device is used for performing cooling treatment, so that the fibre reinforced composite anti-eccentric coiled rod is formed. The invention has the following beneficial effects: the coiled rod has excellent anticorrosion and anti-eccentric performances; the quantity of joints is greatly reduced; the breakage probability and the piston effect are reduced; and in addition, the production efficiency is high, and the operation is simple and convenient.

The invention discloses a method for preparing olefin polymer by utilizing multiple temperature reaction areas. The method provided by the invention comprises the following step of forming a plurality of olefin polymer reaction areas with different temperatures in a fluidized bed reactor by utilizing a circulating medium, wherein the circulating medium comprises an olefin monomer and a condensing agent. By utilizing the method, preparation of high-performance olefin polymer product by utilizing a single reactor is realized. The method is high in heat transfer efficiency. The olefin polymer prepared by utilizing the method is low in density, wide in distribution, uniform in degree of crystallinity and the like and can be widely applied to various fields of thin-film materials and the like.

The invention provides a method for preparing polyacrylonitrile bamboo charcoal composite fiber by in-situ polymerization, comprising the following steps of: (1) respectively adding polymeric monomer, initiator, solvent and bamboo charcoal modified nanometer micro powder in a polymerization kettle for continuous polymerization or batch polymerization so as to obtain polyacrylonitrile polymer and bamboo charcoal modified nanometer micro powder mixed spinning solution for spinning; (2) thermally insulating and filtering the spinning solution obtained in step (1), carrying out wet spinning or dry spinning to the solution by a spinneret assembly, and solidifying the solution coagulating bath formed by polymerizing solvent and water to obtain spun filament fiber; and (3) washing, drafting, drying, finishing, finalizing and winding the spun filament fiber obtained in step (2) to obtain bamboo charcoal polyacrylonitrile composite fiber filament which is cut according to requirement to obtain cotton-type or wool-type short fiber. The in-situ polymerization can ensure that the bamboo charcoal modified nanometer micro powder evenly disperses in a high polymer matrix, therefore, the continuous stability of the fiber preparation is improved; and the prepared novel bamboo charcoal polyacrylonitrile composite fiber has good bulkiness and daylight resistance, thus the application range of the bamboo charcoal fiber is enlarged.

The invention relates to a method for preparing bamboo charcoal and polyamide composite fibers by in situ polymerization. The method comprises the following steps of: adding two polymerization monomers, a solvent, and bamboo charcoal modified nano micropowder to a stainless steel polymerization reaction kettle, carrying out an intermediate reaction, after the reaction is finished, cooling, crystallizing, centrifugally separating, washing and filtering to obtain a composite 66 salt for preparing a bamboo charcoal and polyamide composite melt; preparing the composite 66 salt into an aqueous solution, then adding to an autoclave, carrying out an intermittent or continuous melt polycondensation reaction to obtain the bamboo charcoal and polyamide composite melt, and carrying out melt spinningwith a melt spinning machine to obtain nascent filament fibers; and drying the nascent filament fibers, oiling, stretching, shaping, and winding to obtain bamboo charcoal and polyamide composite fiber filaments or cutting the fibers to obtain chopped fibers. By in situ polymerization, the bamboo charcoal nano modified micropowder is highly dispersed in a polymer matrix, thus the continuous stability of fiber preparation is improved, the fiber processing performance is excellent, and the physical and mechanical properties of the bamboo charcoal fibers are improved.

The invention discloses a preparation method of a polyethylene film.The preparation method comprises the following steps of 1, conveying a main catalyst in a catalyst system into a reactor with mixed liquor I as carrier material flow, wherein the mixed liquor I comprises alkene, olefin and promoter; feeding olefin to material flow II flowing out of the reactor for replenishment, so that material flow III is obtained, and dividing the material flow III into material flow IIIa and material flow IIIb, wherein the material flow IIIa and the material flow IIIb flow back to the side and the bottom of the reactor respectively; in the reactor, obtaining polyvinyl through polymerization, and discharging the material out of the reactor, wherein olefin comprises alpha-olefin and ethene, and the mole concentration ratio of alpha-olefin to ethene in the mixed liquor I is 1 or higher; 2, making polyvinyl obtained in step 1 be subjected to a blow molding process, so that the polyethylene film is obtained.By means of the method, longitudinal and transverse tensile strength of the film is improved, and uniform longitudinal and transverse tensile strength is achieved.

The invention discloses a moth-resistant treating method for wicker straw. The method comprises the following steps: (1) pretreating straw raw materials; (2) preparing a moth-resistant treating solution; (3) modifying; (4) treating at low temperature; (5) repeatedly treating for the second time; (6) weaving at constant temperature. The straw treated according to the method provided by the invention has better moth-resistant and mold-proof characteristics, excellent flexibility, folding resistance, tensile strength and weaving property; the prepared products have the characteristics of environmental protection, safety and no harm to a human body; the service life of the products is 2-3 years longer than that of the products prepared according to the conventional method; the popularization value is higher.

The invention relates to a folding mechanism and a folding overturning device for a pull-ups and adult pull-ups production line. The folding mechanism comprises an O-shaped belt guided by a group of O-shaped wheels, a plurality of groups of transition wheel rods are arranged above the O-shaped belt at intervals, each group comprises two transition rods arranged symmetrically, and the included angles between the transition wheel rods become smaller gradually. A product is folded in the middle on the O-shaped belt, under the guide of the transition wheel rods, two sides of the product are gradually overlapped, and the product is vertically delivered to a clamping mechanism. A product channel is formed between two conveying mechanism belts of the clamping mechanism, and a plurality of pairs of clamping transition wheels are arranged on the inner sides of the opposite belts. An overturning mechanism is in abutting connection with the output end of the clamping mechanism, a plurality of groups of overturning wheels gradually changing from the vertical direction to the horizontal direction are arranged between an upper support and a lower support. The product is output horizontally after overturned. The folding mechanism and the folding overturning device achieve automatic folding and overturning of the product, effectively reduce friction resistance generated in product folding and overturning and improve product machining quality.

The invention belongs to the related technical field of production scheduling, and discloses a production line scheduling system and method based on multiple intelligent bodies. The production scheduling system comprises a global management module, a controller intelligent body and a sub-controller intelligent body, and the global management module is a manager of the highest level in the production scheduling system and has the highest management authority; the controller intelligent body is the core of the production scheduling system and comprises a resource module, a planning calculation module and a task management module, and the resource module is used for storing resource information of the sub-controller intelligent bodies; the planning calculation module decomposes the task and sends the task to the task management module; the task management module sorts the decomposition tasks according to a priority sequence and then distributes the decomposition tasks to the sub-controller intelligent bodies; and the sub-controller intelligent body is used for executing the task sent by the task management module. According to the invention, the independent operation capability of theintelligent body is ensured, and the working efficiency and management capability of the scheduling system are improved.

The invention provides a monitoring method for the consumable consumption of an ink-jet printing machine. The monitoring method comprises the steps that a metering device is connected to a consumable addition loop in series; consumables needing to be added from an ink box or a solvent box in the consumable addition loop flow through the metering device for being metered each time and then are added into an ink loop of the ink-jet printing machine. The amount of left consumables in the ink box or the solvent box is estimated in real time according to a metering result of the metering device. According to the monitoring method, the consumption progress condition of the consumables of the ink-jet printing machine can be accurately mastered without opening a machine case frequently and manually inspecting the machine case, hidden failures such as leakage and blockage of the whole ink addition metering loop can be judged, consumable supplementing plans and maintenance plans can be made in advance, machine halting and production halting caused by using up the consumables can be avoided, the use convenience of the ink-jet printing machine is greatly improved, and the continuous stability of production is greatly improved.

The invention discloses a novel anti-coking intelligent efficient biomass heating furnace. The novel anti-coking intelligent efficient biomass heating furnace comprises a feed ignition device, a multi-chamber partition combustion chamber, a hot water output circulating device, a flame smoke aftertreatment device, a dynamic combustion deslagging transmission device, an intelligent control device and a maintenance device. The core of the novel anti-coking intelligent efficient biomass heating furnace is a three-chamber four-area segmentation gradual combustion chamber, and an auger and rake tooth whole-process dynamic structure is used for replacing a movable fire grate, so that the combustion efficiency is improved, and coking and slagging are prevented. A front-blowing back-leading micro-negative-pressure two-way ternary air distribution system is adopted. In addition, a high-temperature area of the heating furnace adopts an all water jacket structure; external heating output of circulating water is realized through smoke-water reverse heat exchange; operations are simplified through intelligent control and introduction of an automatic ignition system; and the heating furnace is excellent in fuel applicability and operation convenience, is dispersed heating equipment with cleanness, high efficiency, energy conservation and environmental protection, provides excellent heating solution schemes for national new urbanization, and is prominent in anticipant economy and social benefit.

The invention discloses a system for controlling the transmission and storage of cigarettes and a method, wherein an electric control display terminal is provided above an electric control cabinet comprising an electric control unit, a field detection unit is connected with the electric control unit for collecting and sending data to the electric control unit, the electric control unit via a control network is respectively connected with the electric control display terminal and a storage transmission servo drive device for sending the processing result of the electric control unit to the electric control display terminal and the storage transmission servo drive device, the storage transmission servo drive device is connected with an electric execution mechanism for controlling the electric execution mechanism. The technical scheme of the invention can accurately calculate the storage amount of cigarettes, has stable operation and low accident rate, can confirm the continuity and stability of cigarettes in transmission to confirm the quality of cigarettes.

The invention discloses a method for removing formic acid online in the process of trioxymethylene synthesis. The method is characterized in that the formic acid is removed by enabling reaction mixed gas to pass through basic salt solution to convert the formic acid into formate. The method can effectively remove the formic acid, is favorable for improving quality of trioxymethylene products, and promotes continuous stable production of the trioxymethylene products.

The invention discloses a carbon fiber continuouspimping rod and a preparation device and method thereof. The carbon fiber continuouspimping rod comprises a carbon fiber reinforcement layer, a high modulus glass fiber layer and a fiber-weave abrasion-proof layer. The high modulus glass fiber layer is arranged on the outside portion of the carbon fiber reinforcement layer in a covering mode; and the fiber-weave abrasion-proof layer is arranged on the outside of the high modulus glass fiber layer in a woven and coiling mode. Continuous acrylonitrile-based carbon fibers with longitudinal stretching modulus of more than 230 GPa are adopted for the carbon fiber reinforcement layer; high modulus glass fibers with longitudinal stretching modulus of more than 90 GPa are adopted for the high modulus glass fiber layer; and the coiled fiber-weave abrasion-proof layer is made of abrasion-proof high modulus aramid1414 fibers. The problems of corrosion and partial abrasion during oil field oil extraction production are solved; the problem of influence on rod bodies by high temperature well washing is solved; the problem of oil extraction in a deep well and an extra-deep well is solved; and the pumping rod with corrosion-proof and partial-abrasion-resisting performance, and a small piston effectand convenient operation and use is manufactured.

The invention relates to a preparation method of an ethylene polymer, and the method comprises the following steps: taking a mixed liquid I as a carrier flow to convey a main catalyst in a catalyst system into a reactor, wherein the mixed liquid I comprises alkane, alkene and a co-catalyst; adding supplementing alkene feedstock into a material flow II which outflows from the reactor to obtain a material flow III and dividing the material flow III into a material flow IIIa and a material flow IIIb, wherein the material flow IIIa and the material flow IIIb separately flow back to the lateral part and the bottom of the reactor; and performing polymerization in the reactor to obtain an ethylene polymer and performing discharging from the reactor. In the method, the alkene comprises alpha-alkene and ethylene, wherein the molar concentration ratio of the alpha-alkene and the ethylene is more than or equal to 1. The polymer prepared by the method has low haze and high self-adhesive property. The invention also relates to an application of the ethylene polymer prepared by the method which is provided by the invention to film products.