The structure of the sorghum double helix classifier is shown in the "Spiral classifier classification and working principle". The semicircular water tank 2 is welded by steel plate and section steel. The middle side wall of the tank body has a feed port and the lower part of the upper end of the tank body. There is a returning sand. The bottom of the lower end of the tank has a drain valve that closes during normal operation and opens and releases the slurry in special cases such as failure. The slot is provided with a longitudinal hollow shaft, and the shaft is equipped with a bracket frame adapted to the spiral lead angle, and the left and right spiral blades are fixed on the upper side, and the screw mechanism adopts a double-head pitch spiral and is equipped with resistance at the edge of the blade. grinding plate (neutral manganese typically made of ductile iron). The spiral rotates, on the one hand, the slurry is stirred to float the light and fine particles, and the coarse and heavy particles sinking at the bottom of the groove are discharged to the upper end. Hollow shafts are usually made of seamless steel tubes or welded with long steel coils. The upper and lower ends of the hollow shaft are welded with a journal, the upper end is supported in the rotatable cross-shaped shaft head, and the lower end is supported in the lower support. The cross-shaped shaft head support is shown in Fig. 1. The shaft heads on both sides of the support are supported on the transmission frame, and the spiral shaft can be rotated and lifted.
The bearing support at the lower end requires a good seal because it is immersed in the slurry for a long time. In the past, three types of sealing devices were used: mechanical seal rolling bearing bearings, pressure water sealing resin tile sliding bearing bearings and pressure water seal rubber bushings. The sealing performance of these structural types was not satisfactory. Later, the mechanical seal rolling bearing support was improved, and the packing labyrinth and high-pressure dry oil combined sealing type (Fig. 2) was adopted, thereby improving the sealing performance and the bearing life. Extend to a year or so.
Figure 1, 2
The screw shaft is driven by a motor, a speed reducer, a spur gear and a bevel gear pair, and the transmission is mounted on the upper end of the device. Since the sand sinking after parking will cause the starting of the spiral blade, the screw shaft lifting mechanism is provided, that is, a motor drives the screw through the speed reducer and a pair of bevel gears to raise and lower the shaft. In addition, if the coarse sand sedimentation layer is too thick during rotation to make the screw shaft difficult to rotate, it can be slightly raised to prevent damage to the blade and other parts.
Metal Baler
Hydraulic metal machine is mainly applicable to steel mills, recycling and processing industries and non-ferrous metal smelting industries. Hydraulic Baling Machine can squeeze all kinds of metal scrap (steel shaving, waste steel, waste aluminum, waste copper, waste stainless steel and scrap automobile waste, etc.) into cuboid, octagon, cylinder and other shapes of qualified charge, which can reduce the transportation and smelting cost, and improve the speed of furnace. It is mainly used for cold pressing under normal conditions for scrap metal scraps, scrap steel scraps, waste oil tank, disassembling car shell and other metal scraps with a thickness of less than 3mm. Cold pressed into blocks for easy storage and transportation or furnace.
Features:
1) Hydraulic drive, smooth and noiseless work, fast extrusion speed, large extrusion force, compact package block, not easy to be scattered.
2) high quality national standard steel plate with advanced welding technology to make the mechanical parts strong and durable, low failure rate, long service life.
3) the oil cylinder seal is imported glyd ring, good sealing performance, strong pressure resistance.
4) Convenient installation, small floor space, no foundation, foot, etc. Simple operation, detachable and PLC automatic mode.
5) Cold extrusion will not change the metal material and increase the utilization rate.
Metal Shavings Baler, Scrap Metal Baler, Waste Metal Baler, Sheet Metal Baler, Metal Scraps Baler
Jiangyin Metallurgy Hydraulic Machinery Factory , https://www.ecometalsrecycle.com