查询词典 fluidized

It uses two normal-pressure fluidized beds and makes the material circulate between the two beds, the fluidized bed boiler produces steam and the fluidized bed coal cracking furnace is used for pyrolyzing coal powder to produce meidum caloricity coal gas; the heat quantity needed for coal pyrolysis is provided by hot ash acted as heat carrier.

流化床煤气－蒸汽联产工艺及装置，它采用两个常压流化床，使物料在两床之间循环，流化床锅炉产生蒸汽，流化床煤裂解炉用来热解粉煤，产生中热值煤气；热灰作为热载体提供煤热解所需的热量。

The results indicate that the heat transfer coefficient increase about fourteen percent between the bed and the wall and the one between the gas and horizontal tube increase about twenty two percent, it means pulsating promote heat transfer, Desulfurizing Characters Experimental Research on Pulsating Fluidized Bed With different initial SO_2 density, mean diametric of the calcium oxide and combustion temperature, the experimental results of desulfurization with pulsating or not indicate that the desulfurizing characters of the Rijke type self-exciting pulsating fluidized bed are the same with the conventional fluidized bed combustor, it is that the utilization ratio of the calcium oxide increasing with the initial SO_2 density, the desulfurizing combustion temperature has the best value and the utilization ratio of the calcium oxide reducing with the mean diametric of the calcium oxide.

脉动流化床脱硫特性实验研究对不同初始SO_2浓度、不同初始脱硫剂颗粒平均直径、不同燃烧区温度条件下脉动与非脉动状态下流化床内的脱硫实验研究表明，Rijke型自激式脉动流化床具有类似于常规流化床燃烧器的脱硫特性：固硫剂的CaO利用率随初始SO_2浓度的增加而增加，脱硫燃烧温度存在最佳值，以及CaO利用率随脱硫剂颗粒平均直径的增加而减小。

Numerical Simulation of Flow Field in Pulsating Fluidized Bed Under special entry conditions, the CFD is used to simulate the three-dimension fluidized bed with different oscillation intensity and frequency in order to research the effect of sound oscillation on flow field in the fluidized bed. The results indicate that the sound oscillation can make the distribution of the flow field more uniform and can promote the heat and mass transfer.

脉动流化床流场模拟在特定的入口条件下，应用计算流体力学技术对三维流化床在不同振动强度、不同频率扰动作用下的流场进行模拟，得到声波扰动对流化床流场分布的影响，结果表明声波振动可以使流化床内的流场分布更加均匀，促进热质传递。

Air is heated in electric heater through the fan, then goes through the gas distributor into the fluidized bed dryer; and material enters the fluidized through the top. Materials keep fluidized in virtue of the flotage effect of the hot air. Energy and mass exchange in the fluid bed dryer.

流化床干燥过程：空气由鼓风机引入电加热器，加热后经布风板进入流化床，物料由流化床顶部预先加入，通过调整进风量，使物料在热空气的作用下保持流化状态，实现物料的流化干燥。

The device for separating and recovering the carbon dioxide from the flue gas by dry process consists of a powder grinding device, a powder feeding device, a fluidized bed, a cyclone separator and a regeneration device, wherein, a flue gas inlet is arranged at the bottom of the fluidized bed, the powder grinding device is communicated with the lower part of the fluidized bed by the powder feeding device, the upper part of the fluidized bed is communicated with the upper part of the cyclone separator by a pipe I, the top of the cyclone separator is provided with an outlet pipe for the flue gas containing low-concentration carbon dioxide, the bottom of the cyclone separator is communicated with the upper part of the regeneration device by a pipe II, the bottom of the regeneration device is communicated with the bottom of the fluidized bed by a pipe III, and the top of the regeneration device is provided with an outlet pipe for the flue gas containing high-concentration carbon dioxide.

本发明提供一种干法分离和回收烟气中二氧化碳的装置和方法，无需分离前对烟气进行降温，而直接在高温下进行二氧化碳的吸收分离，从而避免降温过程中的能量损失；器中干法分离和回收烟气中二氧化碳的装置，由磨粉装置、给粉装置、流化床、旋风分离器和再生装置组成，所述流化床底部有烟气入口，所述磨粉装置通过给粉装置与流化床下部连通，流化床的上部通过管道I与旋风分离器的上部相连通，旋风分离器的顶部有低二氧化碳浓度烟气出口管道，旋风分离器底部经过管道II与再生装置的上部连通，再生装置的底部通过管道III与流化床的底部相连通，再生装置顶部设有高浓度二氧化碳烟气出口管道。

This make it difficult to know the essence of fluidized beds. In order to viewthe motion behavior of a single particle in a fluidized bed in a reasonable cost, thegas-solid flow in a fluidized bed is modeled by a combined approach of discrete particlemethod and computational fluid dynamics, in which the motion ofindividual Particles is obtained by solving Newton\'s second law of motion and gas flowby the Navier-Stokes equation based on the concept of local average.

为了用数值模拟方法来弥补传统实验方法的不足，达到从单个颗粒的尺度上来研究流化床中颗粒的运动和气体流场的剧烈变化情况的目的，本论文建立了基于用Newton第二定律计算单个颗粒运动轨迹的离散颗粒法和基于区域平均值的计算流体动力学方法的数学模型的建立和求解过程；并依据Newton第三定律建立了DPM模型和CFD模型的耦合模型，编写和调试了DPM和CFD的耦合程序。

Base of the distribution of chaotic parament in gas-liquid-solid fluidized bed,the bottom and the central of gas-liquid-solid fluidized bed is very comlexed.So we should monitor the bottom and he central of the fluidized bed. It provided the basis of degumming and it has important value and instruct meaning.

根据气液固流化床中的混沌特征参数的分布，说明在流化床的底部和中央区的运动更为复杂，应加强底部和中央区的控制和监测，同时也为流化床在脱胶行业的应用提供了依据，具有重要的工业应用价值和指导意义。

In different conditions on fluidized state and stability of conical fluidized bed. The conlusions are: the conical angel of the conical fluidized bed is 20°, the fluidized state havesmall difference in conical distributor and distributor plate. The angle of conical bed increase,the fluidized state will have big difference. The angle is 60°and the conical as distributor, themass of fluidized is less, the most of material is the bottom of conical bed. The effect ofdistributor plate is much better than the conical distributor. Sawdust and rice hull can fluidize.The annular gap of conical distributor different, the angle of conical bed is same, the fluidizedquality of 10mm annular gap is better than the other conical distributors. The annular gap ismore wide, the conical bed have more slugging phenomenon and the pressure fluctuate is turnbig.In the experiment the flow of 2％and 4％distributor plates don\'t easy to control, becausethe pressure is very big and the pressure fluctuate of conical bed is too big.

在不同的条件下对锥形床的流化状态和稳定性进行了研究，结果得出：锥形床的锥角为20度时，分布锥和分布板的流化状态相差不明显，随着锥形床锥角的增大，分布锥和分布板的流化现象会出现明显的变化，锥形床锥角越大，分布锥的流化状态变化越明显，流化的的物料越少，大量物料都聚集在锥形床底部，而分布板在加料量少的情况下，能流化起来。10mm、15mm和20mm环隙分布锥在锥形床锥角相同条件下，10mm环隙分布锥的流化质量要好于其它两个分布锥，环隙越大越容易出现腾涌现象的产生，压降波动范围增大。2％、4％和6％开孔率分布板在本实验测定时，2％和4％开孔率分布板的流量不容易调节，同时产生的压降波动范围也很大，比较来说，6％开孔率分布板流化质量好些。

Packing with SRB for treating simulative wastewater with sulphate concentration and packing with CSB for treating simulative wastewater withsulfides by activated-charcoal, agar, synthesized sorbent--MagneticHollow porous Polystyrenemicrophere on Upper-flowing Fluidized Bed Reactor, the experiment results show: Magnetic Hollow porous Polystyrenemicrophere characterized with magnetism , large surface area , easier recovering and flowing, of which the reducing efficiency of SRB in Upper-flowing Anaerobic Fluidized Bed Reactor can reach 96 %, the reducing efficiency rate of CSB in Aerobic Fluidized Bed Reactor can come up to 88.4 %, which was the highest among the three sorbents.

本文分别以活性炭、琼脂、及自制的磁性多孔聚苯乙烯微球固定SRB和CSB，在上流式流化床反应器中处理模拟硫酸盐废水和硫化物废水，结果表明：磁性多孔聚苯乙烯微球具磁性、比表面积大、易回收等优点，固定化SRB的SO_4~(2-)去除率高达96％，固定化CSB的硫化物去除率为88.4％。

Fluidization and Sounding Pressure Characters Experimental Research on Pulsating Fluidized Bed After verifying experimentally the Rijke type self-exciting pulsating fluidized bed combustion, under different operating conditions (different empty cross-section wind speed and inaction bed height), experimental research the oscillation characters of sounding pressure in the pulsating fluidized bed. The results indicate that the sound characters in the Rijke type self-exciting pulsating fluidized bed combustor are the same with it in the Rijke type combustor, the pressure in the combustor oscillate up and down in the sinusoidal manner and the pressure is the superposition of the multiple harmonic waves.

脉动流化床流化与声学压力特性实验研究在实验验证了Rijke型自激脉动流化燃烧概念后，在不同运行条件(空截面风速、静止床层高度)下，实验研究了Rijke型自激式脉动流化床的声压振动特性，研究结果表明：脉动流化床内建立起的声波特性和Rijke型脉动燃烧器内的一样，各点压力呈正弦规律上下振动，且压力是基波幅值最大的多次谐波的叠加。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。