底流

A process for treating the sludge generated by alumina sewage treating system incldues such steps as pumping the alumina sewage in sand depositing pool then in depositing pool, mixing the bottom sludge, the sewage from sand-water separator, and the regenerated water from filter to obtain backflush water, heating in desilicating heater, washing the secondary red mud to recover Na2O and Al2O3, anjd returning the washing liquid containing Na2O and Al2O3 back to the flow of production of alumina.

本发明公开了一种氧化铝废水处理系统的污泥处置新工艺，它将氧化铝废水先进入沉砂池中进行沉砂处理后才进入沉淀池中，将虹吸泥机从沉淀池中吸出的底流污泥和砂水分离器分离出的污水以及将部分经过滤器过滤后所得的再生水作为反冲洗水一起通过污泥泵送到脱硅加热器中加热得污泥热水，然后将污泥热水用于二赤泥洗涤沉降，以回收赤泥附着的Na2O和Al2O3，将洗涤赤泥后含有Na2O和Al2O3的洗液送到氧化铝生产流程中重新使用。

Hybrids of carbonate and terrigenous sediments Carbonate with terrigenous sediments are of characteristic from Emsian to Eifelian in stable shallow-sea faciesregion in Longmenshan area, and they can be classified evidently into hybrid Ⅰ and hybrid Ⅱ(Jingbaoshi-type). Type Ⅰ produced in mud shelf setting occupied hundreds of tempestite beds in which bottom cast、 hummocky cross bedding sandstones、 coquina were inter-beddded with shales that beared a great deal of verm traces、 bioturbations、 benthic communities dominative of brachiopods. Type Ⅱ in sand-mud-marl shelf was characterized by high-energy foreshore sandbeach facies and shelly bank facies.

碳酸盐与陆源碎屑混合沉积方面对微相、相特征、旋回样式、沉积机理研究表明，龙门山地区泥盆纪稳定浅海相区Emsian期和Eifelian期混合沉积十分发育，颇具特色，明显可以划分为两种类型：混积Ⅰ型，泥质陆棚背景下发育风暴沉积组构，幕式风暴期产生具丘状层理、底流冲刷构造的钙质砂岩、介壳岩，平息期则形成具大量虫管和生物扰动的深灰色、黄绿色页岩及海百合茎灰岩，腕足动物等大量繁盛；混积Ⅱ型，砂泥灰质陆棚背景下以发育高能前滨沙滩及生物介屑滩为特色，近滨至陆棚的砂泥灰互为混合，三者比例接近，肉眼难以区别确切岩石类型。

The German Diu Crone, in which Gawain, rather than Perceval, achieves the Grail.

德国的底流科尔，里面是亚瑟王的圆桌武士之一加文，而不是珀西法尔，获得了圣杯。

The optimum process conditions of treating chromium-contained wastewater with low concentration and the optimum reflux rate of settled bottom stream of flocculate are obtained.

以长沙铬盐厂的含铬废水为试验水样，研究了用七水硫酸铁、亚硫酸氢钠、铁屑 3种还原剂达标处理较低浓度含铬废水的适宜工艺条件和悬浮液絮凝体沉降底流的最佳回流率。

Based on the hydraulic model test, the trealment of shock wave in the design of spillway chute bend is proposed,and its effect is good.

在水工模型试验基础上，提出了在河岸式溢洪道弯道陡槽、底流消能设计中，处理泄流冲击波的方法，且效果良好。

The hydraulic characteristics of transverse axis vortex behind the sill of the dissipater are studied with the hydraulic test.

通过水力学试验方法，对跌坎式底流消能工坎后横轴漩涡的水力特性进行了初步研究。

During this time the read clock will abruptly speed-up or slow-down to avoid an overflow or underflow condition.

在这段时间里读时钟会突然加速或慢下来，以避免溢流或底流的情况。

The underflow is led back into the filtrate tank and it is used in process again.

废水旋流站组底流被返回过滤箱，然后再被利用在工艺流程中。

The equipment provided in process are: jig sorting mainly to deal with overflow flotation, jigging in the coal and coal flotation tail mixed into the power plants, waste shipped to the Waste Dump, block coal jigging dehydration, floating Coal election at the end of filtration and hydraulic flow classification Desliming, dehydration through the belt to the Coal Wharf.

本设备所规定的工艺流程是：以跳汰选别为主，浮选处理溢流，跳汰中煤和浮选尾煤混合入电站，矸石运向矸石山，跳汰块精煤脱水、浮选精煤过滤与水力分级底流脱泥、脱水通过皮带运到精煤仓。

The underflow is led direct onto the belt filter by gravity, the overflow is dropped back to the filtrate tank, however a part of its flow is led to the waste water hydro cyclone feed tank.

水力旋流站底流靠重力直接被排放到真空皮带机。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。