7results about How to "Large mass transfer area" patented technology

The application provides an organic synthesis steam recovery device and relates to the technical field of steam recovery.The device comprises a steam recovery tank and an air floatation separation tank arranged in the steam recovery tank, the steam recovery tank is internally provided with a spiral cold water pipe and a spiral partition plate, the air floatation separation tank is internally provided with an organic matter separation pipe and a gas overflow port provided with a gas diffusing plate, steam enters from a steam inlet, and then is countercurrently convected and condensed along the spiral partition plate and the spiral cold water pipe, condensed water and uncondensed gas enter the air floatation separation tank after being refined into bubbles by the gas diffusing plate, and through secondary condensation and air floatation during the rising process of the bubbles, organic matter impurities and pure condensed water are separated, compared with a traditional device, the application solves the problems of insufficient condensation, difficult impurity separation and loose structure, has the advantages of complete heat energy recovery, accurate organic matter separation and stable and compact operation, and is suitable for efficient treatment and resource recycling of high-temperature steam containing impurities in the organic synthesis industry.

The utility model provides a kind of water-saving type methanol carbonylation system of acetic acid, system includes: reactor, first catalyst pipeline, second catalyst pipeline, first methanol pipeline, second methanol pipeline and carbon monoxide pipeline;Reactor includes pre-reaction section and main reaction section, pre-reaction section is located above main reaction section;The upper portion of main reaction section is connected pre-reaction section via air pipe line;Pre-reaction section bottom is connected main reaction section via infusion pipeline;The outlet of first catalyst pipeline and first methanol pipeline is communicated with pre-reaction section, second catalyst pipeline, second methanol pipeline is communicated with main reaction section;First intensification mass transfer device and second intensification mass transfer device are provided in main reaction section, first intensification mass transfer device and second intensification mass transfer device are located at the same height and the outlet of first intensification mass transfer device and second intensification mass transfer device is staggered arrangement.Application this system can improve product yield, reduce the energy consumption and cost required for acetic acid preparation.

This utility model relates to the field of esterification reaction technology, and more particularly to a reactive distillation column for esterification. The technical solution includes a column body with multiple inspection ports on the front for subsequent maintenance. Each inspection port has a closure door on its front. The column body contains multiple trays for providing a gas-liquid interface. Each tray has multiple gas riser holes on its surface. The top of each tray has multiple trapezoidal protrusions to increase the mass transfer area. Above the trays are multiple sets of arc-shaped baffles to reduce mist entrainment. Each set of trapezoidal protrusions has gas-phase injection holes inclined at 45 degrees on both sides. This utility model, through the arrangement of trapezoidal protrusions, gas-phase injection holes, and arc-shaped baffles, can force intense turbulence between the gas and liquid phases within the gaps between the protrusions, increasing the mass transfer area and improving separation efficiency. Simultaneously, it can utilize the principle of inertial collision to capture the liquid phase in the gas phase, reducing mist entrainment and improving product purity.

The utility model relates to the technical field of extraction towers, and discloses a DMF (Dimethyl Formamide) recovery extraction tower based on a metal pore plate filler, which comprises an extraction tower shell, a feeding pipe and a liquid inlet pipe are arranged on the upper part of the surface of the extraction tower shell, a gas discharging pipe is arranged on the upper surface, and a liquid discharging pipe is arranged on the lower part; the metal pore plate filler layer is arranged in the inner cavity of the shell, so that the mass transfer area can be increased, two extracted phases are contacted more fully, and the extraction efficiency is improved. The spraying frame is installed at the liquid outlet end of the liquid inlet pipe, the first nozzles are evenly distributed at the bottom, the inclined second nozzles are installed between the first nozzles, liquid can be sprayed at different angles, the distribution range is enlarged, and the two-phase contact effect is enhanced. A motor is arranged in the middle of the spraying frame, a rotor of the motor is coaxially provided with a rotating plate, cleaning brushes are arranged on the rotating plate corresponding to the nozzles, and when the motor drives the rotating plate to rotate, the cleaning brushes can clean the nozzles, prevent blockage, ensure uniform and stable liquid spraying and maintain normal operation and extraction effect of the extraction tower.

This utility model discloses a manganese-containing tailings recovery system for electrolytic manganese, including a manganese recovery system, an ammonia recovery system, and a composite recovery system. The manganese recovery system includes a water washing sedimentation tank; the ammonia recovery system includes a roasting furnace and a first gas collection pipe connected to the roasting furnace, as well as a condensation pipe and an ammonia storage tank; the composite recovery system includes a steel mold press, the discharge pipe of which is divided into two paths, one connected to a calcining furnace; a second gas collection pipe is connected to the calcining furnace, the end of which is connected to a heating oxidation tank, and a packed tower is also provided below the heating oxidation tank; the other path is connected to a crushing and screening machine, which is also connected to a microwave reactor, and the microwave reactor is connected to an ultrasonic generator. This design utilizes the high-temperature calcination of manganese-containing tailings from electrolytic manganese and red mud, employing solid waste co-resource utilization technology, to recycle the manganese-containing tailings from electrolytic manganese as building materials, improving the solidification rate of heavy metals and the decomposition rate of ammonia nitrogen.

This utility model discloses a plasticizer distillation device, including a distillation column, a feeding mechanism, a heating mechanism, a condensing mechanism, a discharging mechanism, and a temperature control system. The upper surface of the distillation column is provided with a top cover, and a steam exhaust pipe is located on the top of the top cover. A porous baffle is fixedly connected to the inner wall of the distillation column. This utility model effectively increases the gas-liquid mass transfer area and improves the separation effect of the plasticizer components by setting a heating chamber, a distillation chamber, and a separation chamber inside the distillation column, and by setting multiple layers of staggered corrugated plates in the separation chamber. This improves distillation efficiency and product purity. A temperature sensor monitors the temperature inside the distillation chamber in real time, and the controller precisely controls the heating power of the heating tubes based on the temperature signal, achieving precise control of the distillation temperature. This avoids product quality problems caused by temperature fluctuations and reduces the occurrence of side reactions.

The novel synthesis resin solvent separation reaction kettle disclosed by the application comprises a reaction kettle body, the reaction kettle body comprises a cylinder body, upper and lower heads are arranged on the upper and lower sides of the cylinder body respectively, a reaction kettle valve is arranged on the lower head, the reaction kettle valve is connected with a gear pump through a circulating pipe, the gear pump is communicated with a falling film coil horizontally arranged in the cylinder body through the circulating pipe, a plurality of holes are arranged on the bottom of the falling film coil and are uniformly distributed in a ring shape around the center of the falling film coil, and a stirring device is arranged below the falling film coil. By increasing the falling film circulating coil, when the gear pump is started, the acrylic resin in the reaction kettle is pumped into the falling film coil and flows out from the lower holes of the falling film coil in a "filamentous" form to fall on the liquid surface in the kettle. This process greatly increases the mass transfer area of the acrylic resin, so that the contained solvent is accelerated to transfer to the gas phase through the "filamentous" surface vacuum, and then condensed into liquid through the horizontal condenser and flows into the collecting tank, thereby improving the solvent separation effect.