37results about How to "Achieve structural optimization" patented technology

The invention discloses an air-railway combined transportation hub network planning method for the field of freight transportation, and the method builds an air-railway combined transportation composite transportation network through the effective connection of a high-speed rail and an aviation line, integrates the technical advantages and market advantages of a high-speed rail and aviation transportation, and achieves the advantage complementation of the high-speed rail and aviation transportation. From the microcosmic perspective, the service level of the express industry is improved; in themacroscopic aspect, reasonable allocation of transportation resources, improvement of transportation efficiency and structural optimization of a comprehensive transportation system are achieved.

The invention relates to an efficient dispersed venturi ejection reactor, which comprises a high-speed jet nozzle, venturi equipment and a heat insulation jacket, wherein the connecting end of the high-speed jet nozzle and the venturi equipment is connected and sealed by a non-standard flange and a venturi flange, and a venturi section hot steam inlet and outlet pipe is arranged on a venturi heat insulation jacket; a drainage tube section hot steam inlet and outlet pipe is arranged on a drainage tube heat insulation jacket, and a finned tube is arranged in the drainage tube heat insulation jacket. Hydrogen peroxide is ejected out by the nozzle at high speed, and a negative pressure area is formed in a suction chamber, so that a yellow phosphorus liquid containing an arsenic impurity flows through a suction tube into the suction chamber, the yellow phosphorus is efficiently dispersed under the action of jet turbulence, and then the yellow phosphorus and the hydrogen peroxide are subjected to a sufficient contact and mixing reaction in a throat tube and are drained along a diffusion tube and a drainage tube; an outer-layer heat insulation jacket allows the reactor to be at appropriate work temperature. Through the driving of a circulating pump, the uninterrupted contact and mixing reaction of the hydrogen peroxide and the yellow phosphorus is realized, and the ultimate purpose of arsenic removal of the yellow phosphorus is achieved.

The invention belongs to the technical field of permanent magnet materials, and particularly relates to a high-corrosion-resistance permanent magnet rich in high-abundance rare earth and a preparationmethod of the high-corrosion-resistance permanent magnet rich in the high-abundance rare earth. The high-corrosion-resistance permanent magnet rich in the high-abundance rare earth comprises a strongmagnetic phase and a crystal boundary rare-earth-rich phase, wherein the strong magnetic phase e is an MM-Fe-B phase, and the crystal boundary rare-earth-rich phase is an MM-Fe phase. According to the method for preparing the permanent magnet, through a double-alloy process, an MM-Fe-B main phase alloy and an MM-Fe auxiliary alloy are prepared, smelted and crushed to prepare powder; the preparedMM-Fe auxiliary alloy powder is added into the main alloy to be evenly mixed according to the mass percent of 1% to 5%; and orientation pressing, sintering and heat treatment are conducted, and the finally sintered magnet is obtained. MM-Fe is introduced in a crystal boundary, thus distribution of the crystal boundary rare-earth-rich phase can be optimized, the crystal boundary rare-earth-rich phase partially replaces an original crystal boundary phase prone to corrosion, the intrinsic corrosion resistance of the MM-Fe-B magnet is improved, through the method, the proportion of low-cost rare earth La/Ce in the magnet is further increased, the material cost is lowered, the technological process is simple, and the high-corrosion-resistance permanent magnet rich in high-abundance rare earth is suitable for scale production.

The invention discloses a track shoe thorn structure optimization calculation method based on CFD-DEM coupling simulation. The method comprises the following specific steps: (1) establishing a physical model; (2) calculation area setting and grid division; (3) setting parameters and boundary conditions in CFD-DEM coupling; (4) performing coupling simulation, and acquiring acting forces of solid and liquid relative to crawler belt thorns; And (5) analyzing crawler belt track thorn structure optimization. Through post-processing analysis on a simulation calculation result, crawler belt track thorn structure parameters (crawler belt thorn height, crawler belt thorn thickness, crawler belt thorn mold drawing angle and crawler belt thorn form) are changed, and structure optimization is performed on crawler belt thorns, so that the hook traction force (namely the difference between soil thrust and driving resistance) of the crawler belt vehicle is improved, and the trafficability of the crawler belt vehicle is improved.

The invention relates to a rail belt-type conveyor with rotary wheel structures. The rail belt-type conveyor comprises a support, a headstock, a tailstock, an upper guide rail, a lower guide rail, the rotary wheel structures, spiral steering mechanisms, towing trolleys, a tape, a steel wire rope, a driving roller, steering racks and vertical racks, wherein the tape is arranged on support roll groups on two ends of the support for rotation in a surrounding manner; the towing trolleys are separated from the tape or are in contact with the tape on the middle part of the support through the rotary wheel structures and the spiral steering mechanisms; the upper guide rail and the lower guide rail are both arranged on the support through pressing plates; the headstock is arranged on the head part of the support; the tailstock is arranged on the tail part of the support; and the steering racks and the vertical racks are arranged between the tailstock and the headstock. The rail belt-type conveyor has the advantages that the structure of the conveyor is optimized, and the use cost is lowered, so that complementary advantages are realized; the operation cost is greatly lowered; a part of ordinary support rolls are replaced by the towing trolleys, so that the cost and assembly cost are lowered; and revolutionary innovation is brought to bulk material transportation.

The invention relates to an efficient spiral coil reaction device. The efficient spiral coil reaction device is characterized in that the efficient spiral coil reaction device comprises a tank component, a power component, a heat exchanger assembly and a stirring component, wherein the power component is installed above the tank component; part of the heat exchange assembly is installed on the outer wall of the tank component, and the other part of the heat exchange assembly is installed in a tank; the stirring component is installed in the tank component, and the top of the stirring componentis connected with the power component; the heat exchange assembly comprises a steam inlet, a clamp sleeve, a heating coil pipe and a condensate outlet; the steam outlet is formed in the upper end ofthe clamp sleeve; the clamp sleeve is installed at the two sides of the outer wall of the tank; the condensate outlet is formed in the bottom of the clamp sleeve; the heating coil pipe is installed inthe tank, the upper end of the heating coil pipe is connected with the steam inlet, and the lower end of the heating coil pipe is connected with the clamp sleeve.

The invention provides dust suction system of a woodworking engraving machine. The system involves a main shaft dust suction cover, a top suction head, a dust suction connector, a dust suction and material pushing cover and a dust suction pipeline; one end hole of the top suction head is connected with the main shaft dust suction cover, and the other end hole of the top suction head is connected with the dust suction connector; and the outlet of the dust suction and material pushing cover is connected with the dust suction connector, and the dust suction connector is connected with the dust suction pipeline. The top suction head is firstly arranged at the top of the woodworking engraving machine, the dust suction connector and the dust suction and material pushing cover are arranged on a cross beam of the woodworking engraving machine, dust and saw dust are sucked into the main shaft dust suction cover to be sent to the top suction head, then enters from the top suction head to the dust suction connector, the dust suction and material push cover moves along with the cross beam of the woodworking engraving machine, and wood can be pushed to advance while the dust is sucked. The dustsuction pipeline is connected with a dust collector to discharge the dust and the saw dust. According to the system, the functions of all parts are fully utilized, and the structure optimization of the dust suction system of the woodworking engraving machine is realized. In the working process, the saw dust and the dust enter from the main shaft dust suction cover and the dust suction and material pushing cover, are conveyed out by the dust suction pipeline, a dust suction hole is increased, and the length of the dust suction pipeline is shortened.

The invention discloses an automatic method and system for realizing database SQL optimization execution based on artificial intelligence, belongs to the technical field of operation and maintenance monitoring, and aims to solve the technical problems that an existing technical method in the prior art cannot achieve expected optimization efficiency and the SQL execution efficiency after optimization of the existing technical method does not achieve a better effect, meanwhile, causes a waste of resources is caused. The method comprises the steps of optimizing a database table structure and an executed SQL statement according to different database types and rules through artificial intelligence; the method specifically comprises the following steps: S1, completing SQL statement optimization training through an artificial intelligence machine learning algorithm to obtain SQL statements with perfect performance; S2, recording the optimized SQL statements, feeding back a report regularly, comparing a source SQL statement and a final optimized SQL statement, and giving an optimization analysis result at the same time.

The invention relates to a molecular design method of an ice control material. The method comprises the following steps: constructing a compound molecular structure library, wherein the compound molecules containing a hydrophilic group and an ice-affinity group; evaluating the spreading performance of each compound molecule on an ice-water interface by adopting molecular dynamics simulation (MD simulation); and screening out compound molecules with required ice affinity and water affinity. A mechanisms of the ice affinity and water affinity of an ice control material is proposed for the firsttime; MD simulation is introduced into molecular structure design of an ice control material; ice affinity and water affinity of the designed ice control material are simulated and evaluated by molecular dynamics, the ice control performance of the ice control material can be predicted, and structural optimization can be realized. An ice control mechanism and an MD simulation mode are combined, sothat the limitation that an existing ice control material can only be subjected to performance analysis and material screening through an experimental trial-and-error method in the research and development process of the existing ice control material is well solved, and a new thought of molecular structure design is provided.

The invention discloses a quality-improving and silicon-reducing recleaning process for low-grade iron ore concentrate. The process comprises the following specific steps that the iron ore concentrate is ground into ore powder or ore pulp with-325 meshes accounting for 80-82%; performing low-intensity magnetic separation on the mineral powder or the ore pulp to obtain first-section low-intensity magnetic concentrate and first-section low-intensity magnetic tailings; the first-section weak magnetic tailings are subjected to bed grading to obtain table concentrate and table tailings; the table tailings are subjected to first-stage strong magnetic separation to obtain first-stage strong magnetic concentrate and first-stage strong magnetic tailings, and the first-stage strong magnetic concentrate is subjected to second-stage strong magnetic separation to obtain second-stage strong magnetic concentrate and second-stage strong magnetic tailings. By the adoption of the process, low-grade concentrate of a concentration plant has selectability, the yield of pipeline concentrate can be further greatly increased, product structure optimization is achieved, the resource comprehensive utilization rate of complex refractory ore is further increased, and economic benefits are increased.

The invention discloses a novel locking device. The novel locking device comprises a lower shell, a stop block capable of rotating is arranged in the lower shell, an execution rod is inserted in the middle of the stop block, a lock pin matched with a small refueling door is arranged at the top end of the execution rod, when the execution rod is inserted into the stop block, the stop block is driven to rotate, the stop block is sleeved with a torsional spring, one end of the torsional spring is fixed to the lower shell, the other end of the torsional spring is fixed to the stop block, a guide rod inserted into the execution rod in an attached mode is arranged in the lower shell, a first protrusion is arranged at the top end of the guide rod, a spiral groove allowing the first protrusion toslide in an attached mode is formed in the inner wall of the execution rod, a compression spring abutting against the guide rod is arranged in the execution rod, a second protrusion is arranged at theend, inserted into the stop block, of the execution rod, a first protruding block, a second protruding block and a third protruding block are sequentially arranged on the inner wall of the stop blockside by side, and the first protruding block is in a long strip shape with the length larger than that of the second protruding block. The novel locking device has beautiful appearance.

The invention relates to the field of optical devices, in particular to a lens design method which comprises the following steps: S11, analyzing to obtain a sensitive surface of a lens; s21, setting a first maximum deformation quantity of the sensitive surface according to a preset parameter; and S3, analyzing to obtain a first position interval of the central surface of the abutting table on the lens according to the first maximum deformation quantity of the sensitive surface. Through the setting of the steps, the pressure in the radial direction of the lens is reduced, then the possibility of deformation is reduced, the possibility that the lens is difficult to image is reduced, and the imaging quality of the lens is improved.