14results about How to "Meet development requirements" patented technology

The invention relates to the cross technical field of solid waste resource utilization and low-carbon building material preparation, in particular to a seawater and fly ash coal-based solid waste material preparation method which comprises the following steps: step 1, carrying out ball milling modification on fly ash, and filtering impurities from seawater to obtain pretreated seawater; 2, adding a composite alkali activator into the pretreated seawater to prepare an excitation solution, and reacting with the modified fly ash at 60-70 DEG C for 90-120 minutes to obtain an active calcium ion dissolution solution; 3, a trioctylamine-sulfonated kerosene system with the volume ratio being 1: (3-5) is used for extraction for 40-50 min at the temperature of 35-40 DEG C, and chloride ions are removed; and 4, transferring the dechlorinated solution into a high-pressure reaction kettle, introducing carbon dioxide under the conditions of 0.8-1.2 MPa and 55-65 DEG C for mineralization for 180-240 minutes, and curing, drying and demolding the slurry to obtain the finished product material. And the material performance index meets the ocean engineering building material standard.

The invention discloses a household appliance control method and a related device, and relates to the technical field of smart home / smart home, and the method comprises the steps: carrying out the fusion of data which is collected by a non-visual sensor and represents a first human body behavior, and data which represents a second human body behavior and represents an environment feature according to a data fusion strategy, and obtaining human body characteristic data representing a human body state. On the basis, an intention recognition model is called to conduct behavior intention recognition processing on the human body feature data, and recognition result data representing expected operation of the user on the associated equipment in the current environment is obtained. And finally, according to an equipment control instruction corresponding to the identification result data, controlling the household appliances associated with the identification result data. Through multi-sensor information fusion, the defects of a single sensor are effectively overcome, the probability of misjudgment and missed judgment is greatly reduced, dependence on a visual sensor is avoided, personal information safety of a user is protected, and the intention of the user can be more accurately understood.

The utility model belongs to the technical field of agriculture, and provides an agricultural economic water-saving device which comprises an installation plate, supporting grooves oppositely installed at the upper end of the installation plate, a water tank arranged between the two supporting grooves, a water outlet pipe communicated with one side of the water tank, a water pump arranged at the upper end of the installation plate, an input end of the water pump communicated with the water outlet pipe, and an output end of the water pump communicated with a pipeline. Nozzles are arranged on the outer surface of the pipeline. Rainwater is effectively collected through the water tank in rainy days, reasonable utilization of water resources is achieved, irrigation water source supply is increased, and dependence of agricultural production on underground water or surface water is reduced, so that water cost is saved, water resource environment protection is facilitated, sustainable development of agricultural production is achieved, and the ecological agriculture development requirement is met. The filter screen can effectively intercept sundries such as fallen leaves, branches and soil, it is ensured that rainwater entering the water tank is relatively clean, and the rainwater collecting quality is improved.

The application discloses a pesticide synergist and a preparation method thereof. The pesticide synergist comprises a silanol-initiated polyether shown in formula I, an inositol phosphate-initiated polyether shown in formula II, an alcohol auxiliary agent and water. The silanol-initiated polyether shown in formula I and the inositol phosphate-initiated polyether shown in formula II are synergized, so that the adhesion, spreading, penetration and retention capacity of pesticide droplets on a target surface are significantly enhanced, and the utilization rate of the pesticide is effectively improved. The product has the advantages of low toxicity, environmental friendliness, multi-functional synergism, wide compatibility and the like, the preparation process is simple and stable, and the product is suitable for industrial production.

This application provides a method, apparatus, system, and medium for path switching of an autonomous vehicle. The method includes: obtaining the current fault level of the autonomous vehicle; when the current fault level is less than or equal to a preset threshold, determining whether the current speed of the autonomous vehicle is equal to 0; when the current speed is equal to 0, determining whether the target path and the current path of the autonomous vehicle completely overlap; when the target path and the current path do not completely overlap, determining whether the current position of the autonomous vehicle is within a path switching interval shared by the target path and the current path, based on a preset path switching interval; if so, controlling the autonomous vehicle to switch to the target path. Therefore, this application can achieve efficient and reasonable path switching under simple road conditions while ensuring safety, and has low requirements for hardware and software performance, with development costs within a controllable range, thus well meeting development requirements.

This invention discloses a method for producing large-size H13 round steel, comprising the following steps: (1) Electric furnace smelting: the steel charge to the furnace includes 5-10t of DRI direct reduced iron, and the steel output C≥0.05%; (2) Refining: using the LF+RH process; the LF furnace performs a slag return operation, with a slag return amount of 500-1000kg; in the LF furnace, after slag formation and deoxidation, 20-30t of H13 continuous casting head billet and / or tail billet are added for partial alloying, with a white slag time of 110-160min; the vacuum time in the RH furnace is 30-35min; (3) Vertical continuous casting: casting is performed using a vertical continuous casting machine with a casting speed of 0.36-0.40m / min. This invention improves the steelmaking and rolling processes, thereby increasing the internal flaw detection pass rate of large-size H13 round steel, significantly improving the core quality of the round steel, and obtaining green, high-quality large-size H13 round steel that meets market demands.

This invention relates to the field of slow-release fertilizer technology, specifically to straw-based slow-release organic fertilizer and its preparation method. The slow-release organic fertilizer includes an organic fertilizer core loaded with organic matter and nitrogen, phosphorus, and potassium nutrients using straw biochar as a carrier, and a slow-release coating covering the core. The slow-release coating is a cross-linked network formed by phytic acid cross-linking a hydroxyl polysaccharide substrate through phosphodiester bonds. Each phytic acid molecule forms an average of 1.5-3 phosphodiester bonds, with the remaining phosphate groups remaining as free phosphate groups and coordinating with iron and / or zinc. The phosphodiester bonds constitute the hydrolytic substrate of rhizosphere phosphatase. When crops are phosphorus deficient, the phosphatase secreted hydrolyzes the cross-linked bonds, causing the coating to uncross-link, thereby increasing the nutrient release rate with increasing phosphatase activity and simultaneously releasing trace elements such as iron and zinc. This allows nutrient release to adaptively match the crop's phosphorus deficiency requirements. The nitrogen release rate in still water over 28 days meets the national standard for slow-release fertilizers, and significantly improves the phosphorus accumulation and nitrogen fertilizer utilization rate in phosphorus-deficient soils.

The invention relates to the technical field of textile manufacturing, and discloses a wear-resistant canvas bag manufacturing method and equipment thereof.The wear-resistant canvas bag manufacturing method comprises the following steps that S1, wear-resistant cloth is cut, specifically, the wear-resistant cloth is cut into the needed size; s2, gold stamping of the wear-resistant cloth, wherein gold stamping is conducted on the surface of the cloth, and needed pictures are printed on the cloth; s3, sewing and forming, wherein the wear-resistant cloth is made into a canvas bag style through manual and mechanical assistance; the handle and the canvas bag are preliminarily sewn in a manual or mechanical auxiliary mode, images on the canvas bag can be displayed more vividly and clearly through gold stamping, surface treatment and forming of the canvas bag can be achieved through gold stamping, hydraulic extrusion and other technologies, the whole canvas bag can be more attractive and durable, and the service life of the canvas bag is prolonged. And due to the characteristics of automation and mechanization of the equipment, the dependence on manpower can be reduced, the labor cost is reduced, and the production efficiency and the stability are improved.

The application discloses a multi-specification Ti551 titanium alloy ingot preparation method and belongs to the non-ferrous metal processing technical field. The composition of the Ti551 titanium alloy is as follows in terms of percentage by mass: Al 4.5%-5.5%, Mo 0.5%-2.5%, V 0.5%-1.5%, Zr 1.0%-3.0%, Cr 0.5%-1.5%, Sn 0.5%-1.5%, Fe≤0.25%, O≤0.12%, and the balance is Ti and inevitable impurities. The method comprises the following steps: proportionally weighing raw materials such as titanium sponge, zirconium sponge, Al-Mo-containing intermediate alloy, Ti-Sn-containing intermediate alloy, aluminum beans and TiO2; pressing the raw materials into electrode blocks with a density≥3.2g / cm 3 ; obtaining consumable electrodes through vacuum welding; preparing ingots through three-time vacuum consumable arc furnace smelting, the vacuum degree of the three-time smelting is all≤6Pa, and the diameter of the crucible ranges from Φ570mm to Φ1240mm. The application solves problems such as the increase of melt viscosity, poor fluidity, uneven ingot composition and the like caused by multiple alloy elements, and establishes a complete smelting process system covering 5-20-ton multi-specification ingots.

The reinforced ceramic filter plate comprises a supporting layer, a transition layer and a surface functional layer which are sequentially arranged from bottom to top, and further comprises a metal net framework, the supporting layer, the transition layer and the surface functional layer take aluminum silicate fibers as reinforcing phases, and take silica sol, modified epoxy resin and nano kaolin as matrix phases; the content of Al2O3 in the aluminum silicate fiber is 45-55%, the content of SiO2 is 45-55%, and the diameter of the aluminum silicate fiber is 6-10 [mu] m; according to the invention, the metal net skeleton is additionally arranged to cooperate with fiber reinforcement, gradient layered structure design and low-temperature curing process, so that the preparation energy consumption is reduced, the filtering performance is improved, and the mechanical strength and impact resistance of the filter plate are further enhanced.

This invention discloses an integrated structure and construction method for waterproofing, heat insulation, and fireproofing of wooden roofs. The structure includes a composite roof layer, an eaves waterproofing structure, a light-transmitting enclosure structure, and a fireproof reinforcement structure. In the composite roof layer, an open ventilation gap is formed between the SPF wooden joists and the fireproof gypsum board, simultaneously providing support, fireproofing, heat insulation, and ventilation / moisture protection. In the eaves waterproofing structure, the eaves aluminum plate forms a three-sided seal beneath the waterproof membrane layer, making the eaves an integral part of the roof waterproofing system. The light-transmitting enclosure structure creates a light-transmitting area within the roof and uses rubber gaskets to absorb deformation of the wooden structure to prevent damage from the light-transmitting panels, thus balancing lighting requirements with structural deformation adaptability. This invention integrates waterproofing, heat insulation, fireproofing, eaves sealing, light transmission, and fireproof reinforcement functions. The components are detachable and reusable, significantly shortening the construction period and comprehensively improving the safety and durability of the wooden roof structure.

The invention discloses a steel structure high-precision prefabrication construction method, and relates to the technical field of steel structure construction. The method comprises the six steps of construction early-stage preparation, three-dimensional collaborative deepening modeling, prefabricated part precision machining, module pre-assembly precision control, dynamic precision monitoring and feedback and finished product acceptance and delivery. Data standardization management is achieved by building a construction database, three-dimensional modeling and typesetting optimization are completed through Tekla Structures and kernel master software, automatic machining is achieved in combination with a numerical control cutting machine and a welding robot, precision control is conducted through simulation pre-assembly software and a total station, and whole-process dynamic feedback is achieved through an Internet of Things monitoring system. According to the method, the problems of design and machining disjoint, low precision and poor efficiency in the prior art are solved, the component cutting error is smaller than or equal to + / -0.3 mm, the welding deformation is smaller than or equal to 0.5 mm / m, the pre-assembly first-pass yield is larger than or equal to 98%, the comprehensive cost is reduced by 32%, and the method is suitable for factory prefabrication of various steel structure projects and has remarkable economic and social benefits.

The invention discloses an auxiliary voltage transformation device and a current transformation system, the auxiliary voltage transformation device comprises a transformer winding, an iron core, a support, a heat dissipation plate and a heat pipe, the iron core is installed on the support, and the transformer winding is placed on the iron core; the heat dissipation plates are arranged in an air channel of the transformer winding, and the heat dissipation plates are arranged at the upper end part and the lower end part of the transformer winding; a heat pipe is arranged on the heat dissipation plate, and a cooling working medium is contained in the heat pipe. The auxiliary voltage transformation device can meet the application requirements of the train during parking and running of the train, and compared with an air cooling scheme, the noise of a current transformation system is greatly reduced, and the development requirements of the current transformation technology of motor train units and urban rail vehicles are met.

The invention belongs to the technical field of membrane separation, and discloses a recycling and reusing method of waste synthetic liquid after MFI zeolite membrane reaction. The method comprises the following steps: collecting waste synthetic liquid after MFI zeolite membrane synthesis reaction, and removing possible large-particle impurities through simple physical separation means such as standing, centrifuging or filtering to obtain stable suspension rich in MFI crystals, and directly using the suspension as seed crystal liquid for next MFI membrane synthesis. According to the method, a complicated purification or retreatment process is not needed, and in-situ and all-component recovery of the waste synthetic liquid is realized. The method has the beneficial effects that the consumption of fresh seed crystals and chemical raw materials in the preparation process of the MFI film is greatly reduced, and the production cost is saved; meanwhile, the discharge of organic waste liquid is reduced, and the method is environment-friendly; the recycled seed crystal liquid is high in activity, when the seed crystal liquid is used for secondary synthesis, the prepared MFI membrane still has good continuity and separation performance, and an effective way is provided for achieving green, low-cost and sustainable manufacturing of the MFI membrane material.