2 results about "Residence time" patented technology

The present application belongs to the technical field of metal forging, and in particular relates to a large-stroke real-time pressure feedback horizontal hydraulic upsetting mechanism, which comprises a rack, a horizontal hydraulic cylinder, an upsetting head, a pressure sensor array and a control unit. The pressure sensor array is integrated on the working surface of the upsetting head and is used for real-time monitoring of pressure distribution; the control unit establishes a geometric reference based on sensor data, calculates pressure distribution deviation and resultant force estimation through calibration and periodic acquisition, and generates an adjustment coefficient by weighting. When the adjustment coefficient continuously exceeds the threshold value and reaches the shortest residence time, a control instruction of adjustment direction and movement step length is generated to drive the hydraulic cylinder to move. Through real-time feedback and quantitative control, the present application solves the problems of uneven pressure distribution and control lag in traditional upsetting, and improves the forging precision and efficiency. The device structure is solid and suitable for large-stroke forging scenes, and the control method has traceability and reproducibility.

Method for controlling and / or regulating the conveyance of material to be processed, in particular rock material, to a crushing (50) and / or screening plant (30) of a material processing facility (10), wherein the material to be processed is conveyed to the crushing (50) and / or screening plant (30) by means of a conveying device (23), characterized by that the properties of the material to be processed are determined, that a volume flow rate of the material to be processed is determined, that, taking into account the nature and volume flow of the material to be processed, the conveying speed of the conveying device (23) is controlled and / or regulated, that, based on the nature and volume flow of the material to be processed, a residence time of the material to be processed in the crushing (50) and / or screening plant (30) or in an area of ​​the crushing (50) and / or screening plant (30) is predicted, and that the predicted residence time of the material to be processed is used to control and / or regulate the conveying speed of the conveying device (23).