查询词典 sieve disk

Deethanizer right choice is the sieve column, so we Tower Drive, plate spacing, sieve number of openings rate Hydrodynamics sieve has done a serious basis, and make a distillation of the stripper and the load performance of the plan, determine the operating point and the operating line.

对脱乙烷塔选择的是筛板塔，因此我们对塔径、塔板间距、筛孔数、开孔率、筛板的流体力学都做了认真的计算，并且做出了精馏段和提馏段的负荷性能图，确定了操作点和操作线。

I plant mine production of screen products have sieve, sieve blue, sieve tube and so on.

我厂生产的矿筛网制品有筛片、筛蓝、筛筒等。

The conclusion was drawn by the synthesis of molecular sieve: after mixed soluble glass and aluminium sulfate with proper proportion under room temperature, it was stirred stormily to react. And then we mixed with potassium hydroxide solution after filtrating. At last, the molecular sieves of potassium type was synthesized after the mixture reacted in the oven or autoclave for 24 hours. The molecular sieve was remodeled more than twice with ammonium chloride solution that the concentration was 3mol/L and then remodeled twice with the saturated sodium chloride solution. Finally the molecular sieve was changed into the sodium type. It was named W zeolite.

通过对分子筛的合成得到：以泡花碱、硫酸铝为原料，以硅铝比按一定比例于室温下将二者混合，激烈搅拌，抽滤后与氢氧化钾溶液混合放于烘箱或高压釜中高温晶化24小时，晶化后的分子筛为钾型，先后用3mol/L氯化铵溶液和饱和食盐水各对其改型两次以上，最后改为钠型，可制得W型沸石分子筛。

Partition sieve; Integer classification sieve; Ethereal sieve; Goldbach problem; Problem of twin primes

分割筛法；整数分类筛法；轻筛法；Goldbach问题；孪生素数问题

Whereas common filters adopt common sieve or antipriming pipe outer packing sieve, which is easy to cause sieve rupture and thus affect normal use.

而一般过滤器采用普通滤网或多孔管外包滤网，极易发生滤网的破裂，而影响正常使用。

The invention relates to a molecular sieve, in particular to an aluminum phosphosilicate SAPO-34 type molecular sieve and the preparation thereof, wherein the SAPO-34 type molecular sieve contains zirconium ion as a modified metallic element.

本发明涉及一种分子筛，具体涉及磷硅铝酸盐SAPO-34型分子筛及其制备方法，在SAPO-34型分子筛中含有作为改性金属元素的锆离子。

Sieve plate postzone caliber was the thickest,the surface was the next,sieve plate prezone and sieve plate district were the smallest.

筛板后区口径最粗（7.3±1.4）μm，表层次之（6.2±1.3）μm，筛板前区及筛板区最细（4.9±0.7）μm，（5.0±0.8）μm。

The method adopts the following steps: after mixed, phosphorus source, silicon source, aluminum source, an organic template agent, water and a precursor of the SAPO molecular sieve are hydrothermally crystallized for at least 0.1 hour at the temperature ranging from 110 to 260 DEG C to obtain the SAPO molecular sieve; wherein, the preparation method for the precursor of the SAPO molecular sieve has the following steps:, the molar ratio is 0.03 to 0.6 R:(Si0.01 to 0.98: Al 0.01 to 0.6: P0.01 to 0.6): 2 to 500 H2O; wherein, R stands for mixture solution of raw materials which is blended by the phosphorus source, the silicon source, the aluminum source, the an organic template agent and water of the template agent;, the mixture solution of raw materials prepared in step reacts at the temperature which is at least 50 DEG C lower than the crystallization temperature for at least 0.1 hour.

本发明通过采用包括以下步骤：将磷源、硅源、铝源、有机模板剂、水和SAPO分子筛前驱体混合后在110～260℃的温度下水热晶化至少0.1小时获得SAPO分子筛；其中SAPO分子筛的前驱体的制备包括以下步骤：将摩尔配比为0.03～0.6R∶(Si0.01～0.98∶Al0.01～0.6∶P0.01～0.6)∶2～500H 2 O，式中R代表模板剂的磷源、硅源、铝源、有机模板剂和水混合成原料混合液；将步骤制备的原料混合液在低于晶化温度至少50℃的温度下反应至少0.1小时的技术方案较好地解决了该问题，可应用于含氧化合物制烯烃催化剂的制备过程。

The invention provides a preparation method of small crystal SAPO-43 molecular sieve, which is characterized in that: the stepwise procedures are adopted to synthetize SAPO-43 molecular sieve, temperature-rising rate in different temperature phase during crystallization is controlled, so that the synthetized SAPO-43 molecular sieve has small particles, even crystal particles, short crystallization time, and reduce the amount of templates greatly, thereby reducing environmental pollution.

本发明的目的是提供一种小晶粒SAPO-43分子筛的制备方法。本发明的特点在于它是采用分阶段程序升温来快速合成小晶粒SAPO-43分子筛。通过对晶化过程中不同温度段内升温速率的控制，从而实现了合成的SAPO-43分子筛晶粒小，晶粒尺寸分布均匀，晶化时间短，且大大的降低了模板剂的用量，从而减少了对环境的污染。

ZSM two-drum pulse low net work of the screen, pulp pressure from the top of the screen to cut into the screen, the two fall in the middle drum sieve, sieve in the drum inside and outside of the pressure difference and the dual-rotor rotary-wing together, qualified fiber Through the inside and outside the drum screen after screen to the body at the bottom of the pool, and then by the good plasma discharge tube machine, the screen remained in the dark between the flow of rough slurry residue by the rotor and driven together to drum sieve under the tailings from the slot after the Slag discharge pipe.

ZSM双鼓式低脉冲网前筛工作时，纸浆从压力筛的上部切向进入筛体，流到两个筛鼓中间，在筛鼓内外的压力差及双旋翼转子的共同作用下，合格纤维通过内、外筛鼓后汇集到筛体底部，然后经良浆管排出机外，留在筛鼓之间的粗渣受到浆流和旋翼的推动，汇聚到筛鼓下的尾渣槽后从排渣管排出。

Anna: No, I've got a hangover.

不是，我昨晚宿醉了。

We head into the mountains in Su's new Land Cruiser, stop for lunch at a scenic restaurant and then hang around drinking beer and eating fruit as two of his employees attempt to lure the birds with a tape recording of the fowl's mating call.

我们坐上苏的巡逻车向山顶出发，在一家风景优美的餐馆吃了中饭。然后我们喝着啤酒吃着水果四处逛。