44results about How to "Not prone to drift" patented technology

The invention relates to a high-efficiency slurry bed reactor, which belongs to the field of chemical machinery. It mainly consists of a solid-liquid separator, a variable-diameter inner sleeve, a reactor jacket, a heat exchanger with internal components, a gas riser with nozzles, an inner sleeve with heating and gas distribution functions, anti-blocking nozzles, nozzle mounting plates, Heat exchanger, heating coil outlet, secondary distribution plate, heating coil, etc. The beneficial effects of the present invention are that the distributor of the reactor is not easily blocked, the gas-liquid mixing is uniform, the gas-solid contact is sufficient, the reaction efficiency is high, the carrying amount of the catalyst and the solvent is small, the bias flow, channel flow and dead bed are not easy to occur, and the slurry flow rate Fast, the viscosity of the slurry in the reactor is basically the same, and the heat of reaction can be removed in time, especially in the stage of catalyst reduction and temperature rise, it is easy to realize the stable operation of the reactor. In addition, the distribution of the feed gas in the reactor along the axial direction is basically the same as the concentration of the catalyst. The catalyst can maximize its reactivity, and the space of the reactor can be fully utilized.

The invention discloses a construction method of a cast-in-situ hollow floorslab and an airbag-type core framework thereof. The airbag-type core framework comprises an airbag cover and a protecting layer sleeving outside; the airbag cover comprises a bottom surface, a top surface, side surfaces and transition slopes; mutually pulling pieces used for mutually pulling of the bottom surface and the top surface are arranged in the airbag cover, side mutually pulling parts are arranged on the side surfaces, and slope pulling pieces are arranged in places, located in the airbag cover, in the transition slopes. The construction method includes building of framework, mounting of anti-floating pieces, laying of lower steel bars, mounting of lower supporting and fixing pieces, laying of the inflatable airbag mandrel, mounting of upper supporting and fixing pieces, laying of upper layer steel bars and casting of concrete. The top surface and the bottom surface of the airbag-type core framework can become curved surfaces under the action of air pressure, use amount of concrete can be decreased, cost can be reduced, weight of the hollow floorslab can be reduced, quality of the upper surface and the lower surface of the hollow floorslab can be improved, the core framework can be chamfered, and a guiding function upon the concrete can be achieved; the airbag-type core framework can be prevented from being wrapped after being fixed.