8results about How to "Reduce return rate" patented technology

The utility model relates to the technical field of computer bases, in particular to a lifting type computer base which comprises a supporting mechanism, the supporting mechanism comprises a supporting column, a bottom block is arranged in the supporting column, a spring is arranged at the top of the bottom block, a limiting plate is arranged in the supporting column, and a lifting mechanism is arranged on the limiting plate. A limiting pipe attached to the limiting plate is arranged in the supporting column. The sliding mechanism comprises a sleeve, a support is arranged on the outer edge face of the sleeve, the support extends into the sleeve and is connected with a connecting column, the connecting column is arranged in the sleeve, the bottom end of the connecting column is connected with a limiting column, the limiting column is arranged in the supporting column in a sliding mode, and a limiting claw facing the connecting column is arranged in the limiting plate. And a U-shaped limiting piece is arranged at the top of the limiting plate. The base has the advantages of being simple in structure, reasonable in design, provided with a protection structure, capable of avoiding the phenomenon that the base pops up, capable of eliminating potential safety hazards and capable of reducing the return rate, and worthy of being widely applied and popularized.

This invention discloses an ironmaking method using a high proportion of small-particle-size sinter, belonging to the field of blast furnace ironmaking technology. Addressing the problem of resource waste and increased costs caused by traditional processes using <5mm sinter as return ore, the method adjusts the sinter screening specifications to 7mm at the top and 5mm at the bottom, transforming 5-7mm particle-size sinter from return ore into furnace feed. Simultaneously, a center-addition coke feeding mode is adopted, with 5-7mm sinter distributed as small-particle sinter in the central ring area of ​​the furnace throat. Combined with optimized return ore screening, controlled furnace top pressure, optimized coke structure and particle size, adjusted blast system, controlled blast temperature and coal ratio, and controlled molten iron temperature, a high proportion of small-particle-size sinter can be applied, reducing the return ore rate by approximately 2%, increasing gas utilization by approximately 2%, reducing the fuel ratio by approximately 2.5 kg / t iron, and reducing the coal ratio by approximately 5 kg / t iron. This results in annual savings of several million yuan in return ore processing costs and significantly improves furnace stability, making it suitable for smelting ordinary ores and vanadium-titanium ores.

The utility model relates to an igniter for a sintering machine, which is applied to the technical field of sintering production, solves the problems that the edge effect is easy to generate on the edge of the existing sintering pallet, and the productivity of the sintering machine and the quality of sintered ore are restricted. An ignition assembly I and an ignition assembly II are sequentially arranged on the upper end face of the furnace body in the running direction of the sintering pallet, the ignition assembly I comprises at least two edge ignition nozzles, and the two edge ignition nozzles are oppositely arranged on the two sides of the furnace body in the transverse direction. The two edge ignition nozzles are used for igniting sintering materials laid on the edges of the two transverse sides of the sintering pallet, the ignition assembly II comprises a plurality of first ignition nozzles, the first ignition nozzles are distributed on the furnace body in at least one row, and the ignition assembly further comprises a gas source assembly for supplying gas to the edge ignition nozzles and the first ignition nozzles; the method has the effects of increasing the thickness of a combustion layer, inhibiting the edge effect, improving the ignition strength of a mixture at the edge of the sintering pallet and effectively reducing the return rate of sintered ore.

The utility model provides an anti-fracture connection structure between a plugging element and a circuit board. The anti-fracture connection structure comprises the circuit board, the plugging element connected to the circuit board and a jumper wire used for reinforcing the plugging element. The circuit board is provided with an element bonding pad, a main jumper wire bonding pad and an auxiliary jumper wire bonding pad. The plug-in element comprises a pin inserted into an element bonding pad; two ends of the jumper wire are respectively inserted into the main jumper wire bonding pad and the auxiliary jumper wire bonding pad; the jumper wire is inserted into one end of the main jumper wire bonding pad and is fixedly connected with the circuit board together with the pin, so that the pin is electrically connected with the jumper wire; the circuit board is provided with a circuit track used for conducting among different bonding pads, one end, inserted into the auxiliary jumper bonding pad, of the jumper and the circuit track are fixedly connected to the circuit board together, and the jumper is electrically connected with the circuit track. The utility model has the advantages of high stability and fracture prevention between the plugging element and the circuit board.

This invention discloses a system and method for predicting and evaluating the dynamic performance of fabrics and garments based on multi-dimensional sensing. The system includes: a control module for generating composite motion commands to drive an actuator to apply a composite dynamic load, including axial tension, radial torsion, and normal impact, to a fabric sample; a multi-modal sensing module for simultaneously acquiring image signals, acoustic signals, and mechanical signals from the fabric sample; a feature extraction module for preprocessing the multi-modal signals and extracting quantized feature vectors; an AI prediction module with a built-in deep learning model for inputting the quantized feature vectors and outputting the predicted dynamic performance of the garment; and an output module for visualizing the prediction results. This invention can simulate the complex mechanical states exerted on fabrics by real human activity, achieve objective quantification of subjective indicators such as feel and style, and accurately predict garment performance through a deep learning model. It can be widely applied in fabric research and development, garment design, and quality control.

This invention discloses a high-strength biomass carbon-containing pellet, its preparation method, and its application, relating to the field of blast furnace ironmaking technology. The pellet comprises the following raw materials by mass fraction: 70%–85% iron ore, 4%–15% binder, 5%–11% biochar, and 1%–3% basic flux. The high-strength biomass carbon-containing pellet of this invention exhibits high strength and good wear resistance. Its high thermal detonation temperature and low thermal detonation index effectively reduce powder generation after entering the blast furnace. The high-strength biomass carbon-containing pellet exhibits superior reducibility, reductive expansion, and low-temperature reductive pulverization performance compared to traditional sintered ore, pelletized ore, and lump ore. It can be directly used as blast furnace feedstock, reducing the amount of coke used in blast furnace smelting, thereby reducing ironmaking costs and CO2 emissions, resulting in significant economic, social, and ecological benefits.

This invention discloses a method for controlling the weight of the intermediate silo in the unloading section of a sintering system's annular cooler. It includes: 1) establishing a silo weight model based on historical data of the annular cooler's speed, historical data of the plate feeder's speed, and historical weight data of the intermediate silo; 2) using the constructed silo weight model to determine the speed of the plate feeder. V 1. Average weight of silo W ;3) Set the weight range of this control response output to [ W 1, W 2]; where W1 is the lower limit threshold of the intermediate silo weight, and W2 is the upper limit threshold of the intermediate silo weight; 4) when the average weight of the silo W Less than the lower threshold W 1 and duration t When the value exceeds the predetermined value, the speed of the plate feeder is adjusted; or when the average weight of the hopper is... W Greater than the upper limit threshold W 2 and duration t 5) The speed of the plate feeder is adjusted when the predetermined value is exceeded. The method of this invention allows for the prediction and setting of the plate feeder speed.

The utility model provides a kind of adjustable sintering machine pressure roller device, including pressure device and trolley, the pressure device connects trolley, the pressure device includes adjusting hand wheel, adjusting screw rod, fixed plate, pressure roller and stabilizer, the adjusting hand wheel connects adjusting screw rod, the adjusting screw rod connects fixed plate, pressure roller support, the pressure roller support connects pressure roller, stabilizer, the trolley connects air bellow;The utility model is provided with five groups of adjustable pressure roller between seven rollers and ignition platform, combined with adjusting screw rod and stabilizer structure, realizes material surface dynamic flattening.The device significantly improves cloth flatness, reduces return ore rate, improves sintered ore output and quality, with the advantages of simple structure, strong adaptability.