6results about How to "Avoid secondary crushing" patented technology

This utility model provides a crushing and conveying device for gold mining, relating to the field of gold mining. The crushing and conveying device for gold mining includes a conveying frame, a screening mechanism, and a crushing mechanism. A tilting mechanism is connected to the rear of the screening mechanism. The tilting mechanism includes a driving plate and a scraper. The driving plate is disposed inside the crushing mechanism, and the top of the scraper is connected to the bottom of the driving plate. The bottom of the screening mechanism is connected to the top left side of the conveying frame. This crushing and conveying device for gold mining, by setting up a tilting mechanism, uses the output shaft of a second motor at the top of the arc-shaped plate to rotate, which in turn rotates the driving plate at the bottom of the connecting plate. The rotation of the driving plate then rotates the scraper, tilting the unscreened ore blocks above the crushing mechanism so that they fall and are re-crushed. This avoids secondary crushing of the ore blocks, improves the crushing efficiency, reduces energy consumption during device operation, and lowers the cost of gold ore processing.

This utility model provides a crushing device for flavor powder production, including a crushing box. A crushing component is rotatably arranged inside the crushing box, and a screening component is located at the lower end of the crushing component. The screening component includes sliding rods symmetrically arranged at the lower end of the crushing component, and a screening frame is slidably arranged between the two sliding rods. Several springs are evenly arranged between the front end of the screening frame and the side wall of the crushing box. A swaying element for shaking the screening frame is provided on the rear side wall of the crushing box. With this crushing device for flavor powder production, not only can the flavor powder be subjected to secondary crushing by the second crushing roller, but the material initially crushed by the first crushing roller can also be screened by the screening frame, promptly selecting qualified crushed material, avoiding repeated crushing, and improving crushing efficiency.

This invention relates to the field of bio-based oil refining technology, and proposes an industrial-grade refining apparatus for mixed oils. The apparatus includes a mixing cylinder equipped with a stirring assembly and a wall-scraping auxiliary mechanism, and a drive mechanism at the top to drive the stirring assembly in a three-dimensional composite lifting motion. A disc centrifuge is located directly below the mixing cylinder, with a guide pipe fixed at its top, communicating with the bottom of the mixing cylinder. The bottom of the guide pipe has symmetrically arranged spiral guide channels and horizontal discharge ports. A disc assembly is coaxially arranged inside the disc centrifuge, with the gap between adjacent discs decreasing sequentially from bottom to top. This technical solution solves the problems in existing degumming processes, such as the large speed difference between long pipe conveying and centrifugal feeding leading to secondary breakage of fragile bio-phospholipid flocs, easy pipe blockage due to cooling, easy blockage at the bottom of traditional evenly spaced discs (for coarse separation), low purity at the top (for fine separation), and low mixing efficiency of traditional stirring structures.

The utility model belongs to sandstone aggregate conveying technical field discloses a kind of wear-resistant sandstone slow descending device, including multistage slow descending chute, top platform and conveyor multistage slow descending chute including multiple buffer units vertically distributed, it is communicated through discharge port between adjacent buffer units, and the first and last staggered step-by-step slow descending passage is formed;The bottom discharge port of multistage slow descending chute is used as sandstone discharge port;Top platform is set in the top of multistage slow descending chute, and top platform is provided with the feed inlet corresponding with multistage slow descending chute;The outlet end of conveyor is set in the feed inlet of top platform, for sandstone is conveyed to feed inlet.The utility model's ladder type buffer design makes sandstone falling speed step-by-step attenuation, avoid the secondary crushing caused by high-speed impact, make finished product diameter rate greatly reduce.Material cushion protection mechanism makes the wear amount of horizontal wear plate reduce, and device life is extended.The application is combined with splash flow guide surface design, significantly reduce the risk of operating personnel being splashed material injury.

This utility model discloses a primary crushing device for PCB copper powder recycling, including a crushing cylinder. A feed shell for feeding is installed through the top of the crushing cylinder, and a discharge port for discharging is opened at the bottom of one side of the crushing cylinder. Crushing mechanisms are provided both inside and outside the crushing cylinder. Utilizing these crushing mechanisms, when crushing waste PCBs, a drive motor drives the crushing rod and crushing roller to rotate, initially crushing the PCBs. The crushed material is then guided into the crushing chamber by the crushing blocks and the crushing cylinder. Simultaneously, the crushing rod rotates, driving the crossbar to rotate via a pulley and a transmission belt. The meshing of the driving and driven bevel gears then drives the crushing blocks to rotate, further crushing the PCBs inside the crushing chamber. This method achieves uniform crushing of waste PCBs, avoiding the advantage of secondary crushing.

The utility model relates to a tobacco fertilizer applicator which comprises a mounting table, a front shovel and a rear shovel, a blanking hopper and a single wheel are arranged on the lower side of the mounting table, the blanking hopper is connected with a storage box, the front shovel and the rear shovel are respectively arranged on the front side and the rear side of the blanking hopper, the front shovel is connected with the mounting table through a fixing rod, and a height adjusting assembly is arranged between the rear shovel and the mounting table; the height adjusting assembly comprises a telescopic rod and two stabilizing rods, the two stabilizing rods are arranged on the left side and the right side of the telescopic rod correspondingly, the two ends of the telescopic rod are connected with the mounting table and the rear shovel correspondingly, and the two ends of the stabilizing rods are rotationally connected with the mounting table and the rear shovel correspondingly; the stabilizing rod comprises a sliding shell, a sliding rod and a spring arranged in the sliding shell, the sliding rod is installed in the sliding shell in a sliding mode, and one end of the sliding rod abuts against the spring. The height of the rear shovel is adjusted and changed through the telescopic rod, so that the rear shovel can be adjusted according to the height change of different grounds.