选矿设计院在研究铅锌矿石预选工艺过程中,基于X射线辐射选矿法研制了一台用于小重量份选的模型样机。 这一模型样机包括三个组成部分:①给矿系统(输送矿石到照射和测量区);②分析和控制装置;③备有矿石收集装置的执行机构。 图1给出该设备示意图。给矿系统包括矿仓(1)和两台串联自制支撑式280ΠT型振动给矿机(2)。第一级振动给矿机将来自矿仓的矿石铺平。第二级振动给矿机具有较高的振动输送速度,可使矿石流变成单层并将其运往照射和测量区。 分析和控制装置由探测部件(3),放大部件(4),指示部件(5),比较部件(6)和控制部件(7)组成。 Beneficiation Design Institute in the study of lead-zinc ore pre-selection process, based on the X-ray radiation beneficiation method developed for a small sample weight model selection. The model prototype consists of three components: ① feeding system (ore delivery to the irradiation and measurement area); ② analysis and control devices; ③ ore collection device with the implementing agency. Figure 1 shows the device schematic. The mine system consists of a mine (1) and two tandem self-supporting 280ΠT vibrating feeders (2). The first level vibrating feeder mines ore from the silo. The second-stage vibrating feeder has a high vibratory transport speed that allows the ore stream to become a single layer and transport it to the irradiation and measurement areas. The analysis and control device consists of a detection unit (3), an amplification unit (4), an indication unit (5), a comparison unit (6) and a control unit (7).