38results about How to "Avoid the disadvantage of fragile" patented technology

The invention discloses an automatic packaging system for light steel keels and relates to the field of light steel keel production. The automatic packaging system comprises a powerless roller line, a lifting transplanting device, a first conveyor belt, an inward-folding turnover mechanism, a second conveyor belt, a cross-shaped bundle stacking mechanism, a conveying roller line, a PP band binding machine, a stacking machine, a rotary conveying roller, a packaging machine and an automatic control device of the whole system. The automatic packaging system following a light steel keel production line is designed, the inward-folding turnover mechanism is designed according to the specific characteristics for packaging of the light steel keels, the two light steel keels are fastened in a staggered manner and jointed with the conveying roller line through bundle stacking operation and cross-shaped rotation of the cross-shaped bundle stacking mechanism, and therefore the keels are bundled through PP bands, stacked and packaged. The whole packaging system is provided with a corresponding automatic control system, so that the light steel keels are automatically packaged, labor is saved, the labor intensity of workers is relieved, production efficiency is improved, automatic operation actions are more accurate, and the quality of finished products is improved. Equipment of the whole system is simple, packaging operation is quick, safe and efficient, repair is easy and convenient, investment is small, cost is low, packaging is more stable and standard, and the defect that common keel packages are likely to be damaged after being transported in a long distance is overcome.

The invention discloses a wear-resisting blocking-resisting permanent magnet wet type coarse particle preconcentration magnetic separator which comprises an ore feeding device, a tank (7), a barrel (1), a driving device of the barrel, a magnetic system (8), a magnetic regulating device (10), an ore unloading flushing water pipe (9), a concentrate box (4) and a rack (3). The ore feeding device is formed by combining a mixing pool (6), an ore feeding water pipe (13) and an ore feeding hopper (12). A water outlet of the ore feeding water pipe (13) is located in the mixing pool (6), and the ore feeding hopper (12) is of a dustpan-shaped structure. The magnetic wrap angle of the magnetic system (8) ranges from 130 degrees to 145 degrees. A vulcanized rubber composite bonding ceramic sheet is arranged on the surface of the barrel (1). A forced ore unloading device (5) is arranged in the concentrate box (4), and a spiral forced conveying structure is adopted in the forced ore unloading device (5). A magnetic field work area is divided into a preconcentration area, a separation area and an ore unloading area. By means of the wear-resisting blocking-resisting permanent magnet wet type coarse particle preconcentration magnetic separator, ore can be evenly and loosely fed to the surface of the barrel, the situation that the tank is blocked due to mineral sedimentation is not prone to happen, the wear resisting capacity of the tank and the barrel is high, and high-magnetic minerals can be effectively caught.

A preparation method for synthesizing a ZIF-8 membrane in pores specifically comprises the following steps: introducing a precursor solution into pores of a porous carrier, suspending the carrier in a kettle containing a ligand solution, under a heating condition, enabling the solution in the kettle to form steam, enabling the steam and the precursor solution in the pores to form a membrane at a phase interface, and enabling the formed membranes in the pores not to be in contact with each other to form the complete ZIF-8 membrane. However, each film is formed in the carrier holes, all the holes are complete and thin, no gap exists between the holes and the hole walls and form a complete film together with the hole walls due to the limitation of the hole channels, and the diameter of each carrier hole is less than 50 microns, so that the formed film is small in area, high in strength and good in stability, the problem that defects are easy to occur when the film is formed on the surface of the carrier is solved, and the service life of the carrier is prolonged. Therefore, the separation performance and the permeation flux are relatively high. The method is easy to operate and high in repeatability, the solvent is effectively saved, and compared with a membrane synthesized on the surface under the same condition, the separation factor of the synthesized membrane is improved by 1-3 times, and the permeation flux is improved by 3-8 times.

The invention relates to a device for continuously vulcanizing fused salt, wherein it comprises vulcanizing device, cooler and compression air feeder. The vulcanizing tube of vulcanizing device is curved; the slat storage element comprises salt pot, fused salt pump; the vulcanizing tube is connected to the salt pot; the salt pump feeds the fused salt of pot into assist salt pot connected to the liquid groove of vulcanizing tube; the liquid groove has liquid level controller. The vulcanizing process is completed in vulcanizing tube; the cable straightly passes the vulcanizing tube. The invention can be used on variable cables; the middle of vulcanizing tube is filled with fused salt always; the pump will work when needs to add salt. And the controller can detect the salt condition in vulcanizing tube to feed salt on time. When the cable is broken, the fused salt of vulcanizing tube can be completely discharged into salt pot.