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Runout belt chute successfully developed in 1973 by the Guangzhou colored homes, and later by the Ganzhou Nonferrous Metallurgy Machinery Factory (hereinafter referred to Jiangxi MCC) production. The cross-flow belt chute was successfully developed in 1986 and is now produced by the 102 plant of the Sichuan Provincial Bureau of Geology and Minerals.
The 800mm×2500mm single-layer vibrating belt chute produced by Yanye is shown in Figure 1. The working surface is an arc-shaped stepless belt. The surface of the belt is inclined by 1°~4° with the horizontal, and the motor 4 is driven upwards. The eccentric rocker mechanism drives the belt to swing side to side, and uses the eccentric link type shaker head to reciprocate the belt in the longitudinal direction. The entire mechanism is mounted on a rigid frame.
The slurry is fed to the belt surface through the halving plate, which promotes the rapid stratification of light and heavy minerals during vibration and flow. The upper layer of light mineral flows down to the tailings end, and the lower layer of heavy minerals moves up with the belt. Finally, The leading end of the belt is flushed into the concentrate tank with water. The technical parameters of the machine are listed in the table below.
The test uses a 700 mm x 1200 mm cross flow belt chute as shown in Figure 2. Like the Bartles cross-belt belt concentrator , it is sorted by the principle of orbital shearing, but it has three characteristics: 1 the lateral longitudinal slope is adjustable; 2 the ore is fed at the side of the tailings end, No belt spine; 3 products available at one time: concentrate 1, 2, medium mine and tailings. At the same time, the machine is stable and reliable in operation, simple in structure, low in recovery particle size, and enrichment ratio of 20~40. Although the unit processing capacity is small, it is still larger than the belt chute and the vibrating belt chute. It is suitable for the sorting of metal mineral slime, especially suitable for the selection of colored ore such as tungsten and tin .
The slurry is fed to the belt through a distribution tank. The ore is subjected to shearing of the transverse flow and longitudinal shearing of the running belt to allow the mineral to be initially selected to remove the tailings. In the selected area, the ore particles are also subject to the orbital shear (rotary shear) generated by the eccentric weights, and then the layers are re-loose, and the middle ore and concentrate are further obtained, which are flushed into each of them by flushing water. In the mine tank.
The main technical parameters of LCH1200×2750 cross flow belt chute are as follows: selection belt specification (belt width × front and rear roller center distance): 1200mm×2750mm; belt running speed: 0-20mm/s; weight rotation speed (no step adjustment) Speed): 200~500r/min; lateral inclination adjustment range: 0°~3°; effective recovery particle size: 0.01~0.1μm; enrichment ratio: 10~50 times: ore concentration: 10%~30%; processing capacity : 4~5t/d; motor power: 2 × 0.6kW Shab size (length × width × height): 3540mm × 1690mm × 1660mm; machine weight: 1.2t.
   figure 1  Table 2
November 14, 2022