滤饼

The synthesis method comprises the following steps: adding 2-( 5-(dimethylamino methyl- 2- furyl methyl sulpho ethylamine and 1- methylthio- 1- methylamino- 2- nitro ethylene with a molar ratio of 1.04: 1 into water, heating to 48- 52 Deg. C, reacting 4.5 hours with a vacuum degree of 0.02- 0.05 MPa, cooling, adding sodium-hydroxide of concentration of 10% to regulate the PH value to 11.0- 11.4, filtrating and cooling the filtrate to 0- 2 Deg. C, crystallizing for 12 hours, centrifugally filtrating, and rinsing filter cake with purity water to prepare wet ranitidine alkali; dissolving ranitidine alkali in alcohol and reacting with chlorhydric acid to prepare ranitidine hydrochloride.

合成方法包括：将摩尔比为1.04∶1的2-(5-(二甲氨基甲基-2-呋喃基甲基硫代乙胺与1-甲硫基-1-甲胺基-2-硝基乙烯加入水中，升温至48-52℃，于真空度0.02～0.05MPa反应4.5小时，反应完毕降温，用10％氢氧化钠溶液调pH＝11.0-11.4，抽滤，滤液降温至0～2℃，结晶12小时，离心甩滤，用纯化水漂洗滤饼，得雷尼替丁碱湿品；将雷尼替丁碱溶于乙醇中与盐酸反应，制备得到盐酸雷尼替丁，产品符合欧洲药典标准。

The 〓～t curve of UF with periodic back flush can be divided into two sections: the initial section represents the accumulation stage of undetachable cake layer, and the final section represents the equilibrium stage of accumulation and detachment of cake layer.

对周期反冲洗膜污染过程分析结果表明，周期反冲洗超滤〓～t曲线可分为两段：起初的直线增长段为不可逆滤饼层的累积阶段，直线的斜率为各次反冲洗不可逆膜阻增量△R；后期的水平段为滤饼层累积与剥离达到平衡的阶段。

The influence of the filter cake structure and the filter rate was discussed by adding diatomaceous earth.

通过加压过滤实验，得到絮凝后滤饼的过滤特性；在此基础上，加入硅藻土助滤剂以探讨对滤饼结构和过滤速率的影响，并考察滤饼的比阻值及可压缩性。

As the inner and outsider baskets rotate at the same speed, the inner one, pushed by the piston, reciprocates axially and repeatedly. As a result, pusher plate pushes the cake layer in the inner basket to move out of it and then into the outside basket for further separation , a ring layer of cake being formed,while the outside section of the inner basket pushes the cake layer in the outside basket to move continuously out of the outside basket and then discharge it through the slot for scraper.

内、外转鼓同速旋转的同时，在活塞推动下，内转鼓连续轴向往复运动，因而推料盘推动内转鼓滤饼层间歇不断地向外移动排出内转鼓，进入外转鼓进一步分离并形成环形滤饼层，内转鼓外端面则推动外转鼓滤饼层间歇不断地向外移动排出外转鼓，经刮料槽排出机外。

CTAC had the best effect, bringing the sludge cake moisture down to 68%. At 0℃, the above test was also done for the following conditions: untreated, CPAM, FeC13/CaO, and acid conditioning. The sludge cake moisture is lower at 0℃ than that at normal temperature. The untreated sludge and pH=2 sludge had the lowest moisture. At -15 ℃, CTAC brought the sludge cake moisture down to 62.8%, 6% lower than at normal temperature.

结果表明，CTAC对污泥的调理效果最好，可使污泥滤饼含水率降至68%。0℃时，未经处理、CPAM、FeCl3/CaO、加酸处理条件下污泥脱水效果较常温时都有不同程度的提高，效果最好的为未经处理和pH=2条件下的泥样；-15℃时，CTAC条件下滤饼含水率较常温下降了约6%，达到62.8%。

Because our country has attached to environmental protection, treatment of industrial effluent and domestic sewage of the presser increase of imported equipment are emerging, so the introduction of our company press network, this product is a single wire forming a smooth surface to achieve the best cake to divest the effect of monofilament to achieve the best wash results, not easy to plug the filter belt, heat-setting treatment, engage in high tensile strength, filter arrangements will not fight, do not arch camber, the useful life of 6000 hours .......

由于我国对环保的重视，处理工业污水和生活污水的压榨机增多，进口设备也不断出现，故本公司引进压榨网，本产品是单丝形成光滑的表面，达到最好的滤饼剥离效果，单丝能达到最佳的洗涤效果，不易堵塞滤带，热定型处理，搞拉强度高，滤布不打揩，不起拱，使用寿命在6000小时

In a general way, auxiliary time is associated with the structure of filter press characteristics of slurry and application of automatic system, given thickness of filter chamber filtration pressure squeeze pressure, moisture of filter cake, we can regard it as a constant which is independent of production capacity.

众所周知，厢式压滤机一个完整的工作周期还包括滤饼卸除、滤布清洗和重装滤机等不产生滤液的辅助工作时间，在给定滤室厚度、过滤压力、压榨压力的情况下，就可以认为辅助时间是与压滤机的生产能力无关的一个常数。

This type of filter is used where a relatively dry cake discharged is desired. It should not be used where there are toxic fumes or biohazards.

这种过滤机适合于相对的干性滤饼，能被清除，不适合有毒气和生物危害物的滤饼。

When the pressure is 0.11mp the greatest permeate flux is achieved as 1275L/(m2·h). it is also shown that gas liquid two phase flow can substantially decrease the block of membrane pores and the reject of membrane cake. The effect of introduction of gas improves as the concentration polarization and pollution of membrane escalate.

通过计算微滤过程各部分阻力，对SEM扫描电镜进行分析，确定气液两相流可以显著地减少微滤过程中膜内堵塞阻力和滤饼层阻力，随着微滤过程浓差极化和膜污染程度地不断加重，气体对微滤过程的强化程度也越来越明显。

The formula demonstrates that the cake layer thickness is directly proportional to filtration permeation velocity and directly proportional to the density subtractor of suspension and permeating liquid, inversely proportional to the density of cake layer.

公式表明，滤饼层厚度与过滤渗透速度和悬浮液与渗透液的密度差成正比，与滤饼层的密度成反比。

Methods: Five patients with parkinsonism or dystonia were assigned to general anesthesia using an modified endotracheal tube.

本实验依照人体实验之相关规定进行，五位患有帕金森氏症或肌张力异常的病人接受神经立体定位手术。

If you can benefit from this book, it is our honour.

如果您能从本书获益，这将是我们的荣幸。