Ross chute plays an important role - Guan Cheng know in special equipment re-election in placer gold

除了溜槽、跳汰机和摇床等通用重选设备外，近年来还出现了许多专门用来处理砂金矿的重选设备，这些设备针对性强，简单实用，获得了较好的选别效果。下面介绍比较重要的几种。

In addition to the chute, jig and shaker general gravity separation equipment, have emerged in recent years, many for the disposal of the placer gold deposit in gravity separation equipment, the equipment has strong pertinence, simple and practical, to obtain good classification effect. Here are some more important.

1.罗斯（ROSS）溜槽 美国和加拿大采用推土机-罗斯溜槽开采砂金取得了很大成功。这种采金方法处理量大，不需要建立永久性厂房，设备搬迁容易，维护方便，生产稳定可靠，细粒金能得到充分回收。它特别适用于小而富的砂金矿、阶地砂金矿以及难于用采金船开采的砂金矿开采。

1 Ross (ROSS) chute America and Canada by bulldozers - Ross chute mining of placer gold has achieved great success. Processing a large quantity of this gold mining method, does not need to set up a permanent plant, equipment removal easy, convenient maintenance, stable and reliable production, fine grained gold can be fully recovered. It is especially suitable for small and rich alluvial gold placer gold, terrace and difficult to use gold dredger mining of gold placer mining.

罗斯溜槽的生产过程是：用推土机和挖掘机将含金砂矿装入溜槽上端的供矿箱，以大量高压水喷洗矿砂；在充分洗选的条件下，矿砂经带有筛孔的钢板进行筛洗；细粒矿砂经由漏斗毡上铺有带孔的格条，当含金矿浆流经格条时，按密度和粒度进行分层，金被富集在溜槽底部的塑料毡上。国内很多单位对罗斯溜槽进行了广泛的研究，黑龙江省黄金公司根据我国国情并吸取罗斯溜槽的特点，设计制造的龙江-I型溜槽经过工业试验已达到预期效果，回收率可达80%以上。

The production process is: Ross chute ore supply box with a bulldozer and excavator will contain gold placers in the upper end of the chute, with a large number of high pressure water jet wash ore; the washing conditions, ore with sieve plate screening and washing; the fine ore through the funnel felt with a belt hole, when gold bearing pulp through the bars, stratified according to density and size, gold was enriched in the chute bottom plastic carpet. Many domestic units conducted extensive research on the Ross chute, the gold company in Heilongjiang Province, according to China's national conditions and learn from the characteristics of the Ross chute, the design and manufacture of Longjiang -I chute through industrial test has achieved the desired results, the recovery rate can reach more than 80%.

2.机械淘金盘 这类设备有螺线圆盘选矿机、平底淘洗盘、锥型离心盘等多种型式，都是利用离心力和重力的联合作用强化分选。

2 Mechanical pan of this kind of equipment with spiral disc concentrator, frying pan, cone type centrifugal disc and other types, are combined by the action of centrifugal force and gravity intensive sorting.

圆盘选矿机主要由三部分组成：1）上表面带有阿基米德螺线的锥底圆盘。2）装有电机的支架。3）喷水管。圆盘倾角可以调节，一般为32°～35°。工作时，圆盘作倾斜旋转，喷水管由盘中连续喷水。给矿由盘边缘给入，矿浆在盘中流动，由于离心力和重力的作用，重砂矿物和金粒沉积下来，沿螺线槽移向盘心。在此过程中，槽内的物料受冲洗水的作用，轻矿物不断被洗出，流到盘下连的矿浆区，随溢流排出盘外。重矿物在沟底受到沟槽的保护，不易被洗出，最后从盘心孔排出，成为精矿。广西冶金研究所研制的YX-ф800圆盘选矿机当给粒度-6毫米时，处理能力可达1.2吨/时，经一次选别富集比可达20～35倍，金的回收率为96～99%。该机小型轻便，处理能力较大，携带搬迁方便，操作简便，使用不受地形限制，分选水可循环使用，适用于缺水及少水地区，既可用于采金船上，也可以与小型移动式选金机组配套，是很有前途的砂金重选设备。

Disc separator is mainly composed of three parts: 1) cone bottom disk surface with the spiral of Archimedes. 2) support with motor. 3) water pipe. A disk tilt angle can be adjusted, generally 32 ° ~ 35 °. When working, disc rotation, the spray pipe from the intraday continuous spray. For the ore from the disk edge to the pulp flow, in the plate, due to the centrifugal force and gravity, heavy minerals and gold particles deposited along the spiral groove, move to the disk center. In this process, the material is subjected to tank flushing water, light mineral has been washed out, flow to the pulp district even disk, with overflow discharging tray outside. Heavy minerals have groove protection in the ditch, not easy to be washed out, finally discharged from the disc center hole, become concentrate. YX- ф 800 disc separator developed by Guangxi Institute of metallurgy, when to -6 mm size, the processing capacity of 1.2 tons /, once choose don't enrichment ratio is up to 20 ~ 35 times, the gold recovery rate was 96 ~ 99%. This machine is small in size and light in weight, handling ability is big, carry convenient move, operation is simple, use is not restricted by terrain, separating the water can be recycled, suitable to dry and little water area, not only can be used for gold mining ship, and can also be small mobile gold unit, is promising the gravity separation equipment.