45results about How to "Save replacement time" patented technology

The invention discloses a preparation method of a renewable low concentration CO2 high efficient absorption material, and aims to provide a preparation method of a renewable low concentration CO2 high efficient absorption material which has the advantages of low energy consumption, good absorption selectivity, and large absorption quantity of low partial pressure CO2. The technical scheme comprises the following steps: preparing silica sol and an amino siloxane solution, evenly mixing the silica sol and the amino siloxane solution, then mixing the mixed sol with dimethyl silicone oil, stirring to form suspension liquid, stirring at the same temperature of the sol until gel is formed; then heating the mixture to a temperature of 40 to 60 DEG C, allowing the mixture to stand still for aging for 1 to 9 days at a temperature of 40 to 60 DEG C, filtering to obtain the spherical gel; and finally putting the spherical gel and ethanol into supercritical drying equipment to dry the gel. The prepared renewable low concentration CO2 high efficient absorption material has the advantages of good uniformity, high nitrogen content, high specific surface area, large pore volume, and large CO2 absorption capacity.

A holding and support assembly for a winding mandrel in a machine for winding plastic film onto rolls, said machine comprising a winding mandrel positioned between two uprights (12, 13), wherein A first upright (12) carries a rotating plate (14) that cantileverly supports three mandrels (16, 17, 18) and a central shaft (15) that integrally constitute A winding reel, wherein the other end of the central shaft (15) is supported at the second column (13), wherein, corresponding to the free end of the central shaft (15), a star plate (19) is provided, said The star plate has three support arms through each free end of the three mandrels (16, 17, 18) of the corresponding toggle lever mechanism (21, 22, 25) consisting of The actuator (30) is driven and carried on a rod (20) articulated relative to the star plate (19), said rod being in turn driven by another actuator (32) on the corresponding spindle (16, 17 or 18) swings between an operational blocking position for releasing the corresponding mandrel (16, 17, 18) and a rest position.

The invention discloses a cable pull-out prevention structure, which is arranged on an electronic device, and includes: a base, a cover, and a cable positioning member; the base has a first buckle part and two tensile parts arranged at intervals; The cover body is bendably connected to the base body and has a second buckle portion; the cable positioning member is connected to the base body and locates cables; when the cover body is closed relative to the base body, one part of the electronic device will be restricted Between the two tensile parts, the first buckle part and the second buckle part are detachably buckled to each other. Utilizing the pull-out prevention structure of the present invention, in addition to preventing the connector from being accidentally pulled out, it also has the effect of easy cable removal and replacement, and can shorten the time for replacement.

The invention relates to a method for carrying out comprehensive mechanical coal mining and continuous propulsion mining on split and merged coal beds, which is characterized by dividing the whole mining process of the split and merged coal beds into two stages: an actual mining stage of layered coal beds above a split area and an actual mining stage for carrying out continuous propulsion mining on thick coal beds at a merged area and layered coal beds below the split area. A medium thick coal bed hydraulic supportis used for carrying out actual mining on the layered coal beds above the splitarea, and a grand mining high hydraulic support is used for carrying out actual mining on the thick coal beds at the merged area and the layered coal beds below the split area; open-off cut is conducted only once around a split line and a merged line; the mining height of the hydraulic support is required to be both lowered and raised to carry out 'height-differing mining' to realize the comprehensive mechanical coal mining and continuous propulsion mining on coal beds of different thicknesses. By utilizing he method provided by the invention, the number of open-off cuts, finishing cuts and working surfaces for mining the coal beds under such geological conditions can be effectively reduced, the number of standby collar pillars is greatly reduced, the recovery ratio is improved, and benefits of mining the split and merged coal beds are remarkably improved, thus the method provided by the invention has significance in widespread promotion.