4 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.

The invention discloses a supergravity devolatilization device capable of controlling retention time and separating light components in situ. The supergravity devolatilization device comprises a shell, a liquid phase inlet, a vacuum system interface, a light component outlet, a cooling medium inlet, a cooling medium outlet, a rotating disc, a filler, a rotating scraper, a connecting shaft, a motor, a thermal medium inlet, a thermal medium outlet and a product outlet, according to the invention, a liquid-phase raw material enters the supergravity devolatilization device through the liquid-phase inlet, the rotating disc disperses the material into a liquid film or a liquid line to realize a coarse devolatilization process of the material, and the liquid-phase raw material further enters the rotating filler through the liquid film or the liquid line to further disperse the liquid film or the liquid line into liquid lines or liquid drops to realize a fine devolatilization process of the material. In order to further guarantee the controllable retention time, the devolatilization material is thrown to the outer wall of the supergravity shell from the outer edge of the filler, the material is further dispersed into a liquid film through the rotary scraper blade, and meanwhile, the retention time of the material is controllable by changing the included angle between the rotary scraper blade and the horizontal direction. And efficient devolatilization and energy conservation can be realized.

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).

The invention provides a method and device for detecting the speed and concentration of materials in a pipeline, the device comprises a feeder, the pipeline, a blanking device, a power device, a weighing device, a valve and other assemblies, through a plurality of scientific and reasonable step designs, the retention time of the materials in the pipeline in a stable flowing state is calculated to obtain the flow speed of the materials in the pipeline, and the flow speed of the materials in the pipeline is calculated. And the concentration of the material in the pipeline is obtained. The method and the device have the advantages that the detection accuracy is higher and closer to a truth value, and the calibration of the automatic detection equipment is facilitated.