6results about How to "Improve gas utilization" patented technology

The present application relates to a kind of biomass energy for zirconium oxychloride preparation zirconium oxide method and device, preparation method includes the following steps: first air purge the reaction furnace 4~8h, then into the reaction furnace and passes into biomass gas, after ignition control reaction furnace gradually heated to 800~1000 ℃, then zirconium oxychloride is placed in the reaction furnace, calcination 14~18h, obtain zirconium oxide.The device includes biomass gasifier, reaction furnace, hydrochloric acid absorption tower and flue gas absorption tower.The present application uses biomass as clean energy, burning efficiency is high, compared with traditional coal process, energy consumption is greatly reduced, significantly reduce carbon emissions, while nitrogen, sulfur content in flue gas is greatly reduced, easy to reach environmental protection emission standard, effectively solve the pollution problem of traditional process.

The utility model discloses a layered and opposite type sinking burner for ladle roasting, including gas pipeline, primary air casing, secondary air casing and tertiary air casing, the upper end of gas pipeline is used for with gas supply pipeline intercommunication and the lower end opening forms gas spout, the gap between primary air casing and gas pipeline forms primary air channel, the gap between secondary air casing and primary air casing forms secondary air channel, the gap between tertiary air casing and secondary air casing forms tertiary air channel, and primary air channel, secondary air channel and tertiary air channel are all used for with preheating combustion air pipeline intercommunication, and the lower end opening of primary air casing forms primary air spout, and the lower end opening of secondary air casing forms secondary air spout, and the lateral wall of tertiary air casing is equipped with a plurality of tertiary air spout. Can guarantee the full mixing of gas and combustion air, and can make full use of the heat of high temperature flue gas, and can carry out effective afterburning treatment to the unburnt component remaining in high temperature flue gas.

The present application relates to a lotus leaf-like biomimetic bipolar plate, a self-draining method thereof and a fuel cell, the lotus leaf-like biomimetic bipolar plate comprising a bipolar plate body, a flow channel ridge, a flow channel, a branch flow channel, a confluence flow channel, a gas inlet and a gas outlet; the flow channel is provided with uniformly distributed micro flow fields; the micro flow field comprises uniformly distributed lotus leaf-like papilla structures. The lotus leaf-like biomimetic bipolar plate is provided with micro flow fields in the flow field and lotus leaf-like papilla structures in the micro flow field, so that the water generated by the reaction cannot be infiltrated in the flow field, but is separated by the lotus leaf-like papilla structures into the form of water droplets and slid out of the bipolar plate, the draining efficiency is improved, and the phenomenon of water flooding of the fuel cell is reduced.

The utility model discloses a constant carbon dioxide culture leishnannia culture's controlling means relates to leishnannia field, including culture jar, the vertical rotation is connected with the breather pipe in culture jar, and the breather pipe surface fixedly connected with stirring piece and is provided with a plurality of through -holes, culture jar is fixedly connected with carbon dioxide delivery subassembly, is used for the delivery carbon dioxide to the breather pipe. Advantageous effect lies in: through motor and gear drive, synchronous drive breather pipe rotation and thread cover operation, and carbon dioxide is released with micro -bubble through the breather pipe through -hole, and the breather pipe drives stirring piece rotation, both prolongs the contact time of bubble and algal liquid, and also avoids algal cell settlement, realizes the integration effect of the gas supply just stirring, and promotes the mixing efficiency and gas utilization rate.

The utility model discloses a kind of high-pressure gas-based shaft furnace process systems, comprising: pellet lockhopper 1, high-pressure shaft furnace 2, DRI buffer tank 3 and DRI lockhopper 4;Wherein pellet lockhopper 1 is located at the top of shaft furnace, receives iron ore material under high-pressure state and inputs high-pressure shaft furnace 2 under high-pressure state, high-pressure shaft furnace 2 connects pellet lockhopper 1 and the DRI buffer tank 3, and the DRI pellet obtained by reaction in the high-pressure shaft furnace 2 is discharged to the DRI buffer tank 3;DRI buffer tank 3 discharges DRI pellet to DRI lockhopper 4 under high-pressure state.By using the high-pressure gas-based shaft furnace process system provided by the utility model, the whole process of gas-based shaft furnace from feeding, in-furnace reaction to discharging is completed under high pressure, the reduction reaction rate is accelerated, the gas utilization rate is improved, the single-furnace production capacity is increased, thereby reducing production cost, saving energy consumption, improving the overall economy of shaft furnace technology.

This invention provides a method for determining the optimal key furnace parameters of a gas-based vertical shaft furnace based on CFD (Computational Fluid Dynamics), relating to the field of metallurgical equipment design and numerical simulation technology. The method includes: S1, constructing a geometric model of the gas-based vertical shaft furnace and dividing it into meshes; S2, constructing a mechanistic model of gas-solid phase energy and mass flow and gas-solid interphase mass and heat transfer in the gas-based vertical shaft furnace based on Eulerian two-phase flow; S3, determining the input operating parameters of the vertical shaft furnace; S4, performing numerical simulation using the mechanistic model to solve for the chemical reaction field, temperature field, and concentration field until iterative convergence; S5, extracting key production indicators from the simulation results; and S6, determining the optimal combination of key furnace parameters for the gas-based vertical shaft furnace based on the key production indicators. This invention achieves rapid prediction of the optimal key furnace parameters for a gas-based vertical shaft furnace by establishing CFD models of gas-solid phase energy and mass flow and gas-solid interphase mass and heat transfer in a gas-based vertical shaft furnace with different key furnace parameters, performing numerical simulations, and extracting key data for comparison.