3results about How to "Satisfy tightness" patented technology

The utility model relates to a kind of exhaust device for acetylene production, including tank, liquid seal device, solid-liquid separation device, vibrating device, transmission shaft, liquid discharge device, motor, mounting bracket, the side of tank is symmetrically provided with two gas ports and one end of one of gas ports is equipped with liquid seal device, solid-liquid separation device is installed at the lower end of tank, vibrating device is arranged in tank, the liquid seal device of the utility model can seal gas in tank and detect gas pressure in tank and can send signal to external controller and issue alarm when reaching set value, meet the high requirement of acetylene production for sealing property and safety, the solid-liquid separation device of the utility model can carry out solid-liquid separation to waste material after production, the utility model carries out exhaust treatment under enough sealing, safety condition, and the separation of waste residue and production raw material is designed.

This invention relates to the field of rubber hose technology, and discloses a highly flexible and pressure-resistant rubber hose and its preparation method. The preparation method is as follows: An inner layer compound rubber is fed into an extruder and extruded at 70-90°C to form a tubular inner rubber layer. Then, on the surface of the tubular inner rubber layer, polyester tempered brown filaments are braided into a tubular skeleton using a braiding machine, controlling the braiding density to be 80%-95% and the braiding angle to be 45°-60°. Finally, an outer layer compound rubber is fed into an extruder and extruded at 70-90°C to coat the outside of the skeleton layer, forming an integrated composite hose blank. The blank is then fed into a vulcanizing device, controlling the vulcanizing pressure at 0.8-1.2 MPa, the temperature at 150-170°C, and the holding vulcanization for 25-50 minutes. After vulcanization, it is cooled to obtain a highly flexible and pressure-resistant rubber hose. The highly flexible and pressure-resistant rubber hose prepared by this invention has excellent pressure resistance, flexibility, and aging resistance.

The utility model provides a cement sample reserving barrel. The cement sample reserving barrel comprises a barrel body, a barrel cover and a sample separating frame, the barrel body is filled with a buffer layer, the buffer layer forms a plurality of uniformly distributed vertical placement grooves in the barrel body and is used for accommodating the sampling liner, and a sealing cover is detachably mounted at an opening of the sampling liner; the sample separation frame is formed by arranging a plurality of separation guide plates in an annular array with the axis of the barrel body as the center, the two side walls of each separation guide plate are guide slopes, the separation guide plates are arranged above the interval areas between the adjacent containing grooves, and a cone with the tip facing upwards is arranged in the center of the sample separation frame; a feeding hopper is erected above the cone through a bracket; the sample separation frame is erected at an opening of the barrel body and can be detachably fixed on the lower side of the barrel cover, and the barrel cover can be detachably and fixedly connected with the barrel body; when the barrel cover and the barrel body are buckled, a closed containing cavity is formed, and the sample separating frame can be contained in the containing cavity.