5results about How to "Avoid shortage" patented technology

This invention discloses an intelligent method and apparatus for calculating refined oil demand. The method includes: acquiring collected seasonal and historical demand information for refined oil; performing cluster analysis on the collected information based on a clustering algorithm to obtain data information at different regional category levels; performing feature engineering processing on the data information at each regional category level, and determining the feature importance value of each feature among the seasonal characteristics, trend characteristics, and cross-features of refined oil at the corresponding regional category level based on a decision tree model ensemble learning algorithm; determining the target features for different regional category levels and establishing a second training dataset; training a neural network model to obtain a refined oil demand analysis model; and calculating the refined oil demand data of different merchants at different regional category levels. This invention aims to improve the accuracy and efficiency of refined oil demand calculation.

This invention relates to a collaborative control method, apparatus, and equipment for a dual-track loading and feeding system, belonging to the field of railway loading technology. In this method, apparatus, and equipment, when the target car reaches a switching threshold during loading, it switches to the replenishment stage. By setting replenishment priority determination rules, the replenishment sequence of the two tracks is clearly defined, avoiding the problem of insufficient or accumulated material in the buffer bin caused by simultaneous replenishment, resolving the conflict problem of dual-track operations, and improving loading efficiency and accuracy. Furthermore, during the replenishment stage, a fuzzy PID fusion collaborative adjustment algorithm is used to adjust the parameters of multiple devices in a coordinated manner, stabilizing the material level in the buffer bin within the ideal range of 30%-50%. This ensures that coal flows directly into the chute with stable flow fluctuations, eliminating the need for secondary leveling, stabilizing the replenishment conditions, and significantly improving loading accuracy. Simultaneously, it avoids equipment overload caused by material accumulation and blockage, reduces the frequency of air cannon activation, and lowers equipment wear and energy consumption.

This invention discloses an injection molding die for PVC pipe fittings, belonging to the field of injection molding technology. It includes: a fixed mold base with a first water-cooling plate fixed to one end face; a sliding mold base, parallel to one side of the fixed mold base; a fixed template, installed on the end face of the first water-cooling plate near the sliding mold base; a movable template, fixed to the side of the sliding mold base near the fixed template; two mold cavities, symmetrically arranged in the fixed template; and two core guide units, each installed in one of the mold cavities on the fixed template. In this invention, the fixed template and the movable template can fit tightly together to form two injection molding cavities for the PVC pipe fittings. The core shaft in the main shaft core device can be eccentrically or coaxially distributed with the mold cavity as the shaft rotates, which facilitates rapid filling of the mold with PVC material, shortens the injection cycle, prevents material shortages or incomplete filling due to flow obstruction, and improves product quality.

This utility model discloses a slag powder conveying device for cement production, relating to the technical field of conveying devices. The utility model includes a conveying pipe, and further includes: a conveying section mounted on the conveying pipe; an adjusting section mounted on the conveying pipe; and a locking section mounted on the adjusting section. The conveying section is located inside the conveying pipe, the adjusting section is located above the conveying pipe, and the locking section is located on the adjusting section for locking the adjusting section. The outer diameter of the rotating shaft matches the inner diameter of the conveying pipe. By incorporating an adjusting section, this utility model solves the problem that existing conveying devices are inconvenient to adjust the material discharge speed of the hopper during use, leading to difficulties in flexibly controlling the material conveying volume according to production needs. This results in situations where excessively fast discharge causes overload of the conveying system, blockage of pipes or equipment, or excessively slow discharge leads to low production efficiency and insufficient material supply.

The present application relates to a vehicle, a flush door corner window assembly and a processing method thereof. The flush door corner window assembly includes a corner window glass, a wrap-around edge and a guide rail. The guide rail is disposed at a relative interval with respect to the inner surface of the corner window glass, and a first injection port is provided on the guide rail. The wrap-around edge includes a main body section integrally injection-molded in the spaced area between the inner surface of the corner window glass and the guide rail, and two transverse sections integrally injection-molded on the corner window glass and respectively connected to opposite ends of the main body section. A first gate corresponding to the position of the first injection port is provided on the main body section, and a second gate is provided on each of the two transverse sections. During the production and manufacturing process, the wrap-around edge material can be injection-molded into respective positions in the spaced area between the guide rail and the inner surface of the corner window glass through the first injection port and the two second injection ports respectively, so that each position in the spaced area is filled with the wrap-around edge material, thereby improving the connection stability between the guide rail and the inner surface of the corner window glass.