SU900847A1 - Machine for washing frozen material - Google Patents

Description

one

The invention relates to the enrichment of minerals, in particular for washing building materials, minerals and ores containing clay impurities in the frozen form.

A known machine for washing highly-contaminated materials, including a drum, a loading and unloading device, a wadding supply system for washing and removal of clay slurry, nozzles inside the drum to improve the disintegration of clay, a drive and supports in the form of air bellows 1.

The disadvantage of this machine is the low efficiency of the material with impurities of frozen clay.

A known machine for washing building materials with impurities of clay or rock, including a countercurrent drum with a screw on the inner surface, a cone in the loading section, a drive and supports, rotary blades between the spirals of the cone 21.

The disadvantages of this machine owner -. The difficulty of adjusting the flushing time and the low flushing efficiency of the frozen material.

Closest to the present invention is a washer comprising two concentrically mounted drums with spirals on the inner sides, an elevator for handling and unloading material, a feeder, an actuator and a frame equipped with a device for mixing and transferring the material being processed due to holes in the spirals, with This helix of the inner drum is made double with a channel connected to trays for outputting contaminated liquid fixed to the generator of the inner drum 33.

The disadvantages of the known machine are low washing efficiency, in particular due to the communication of the zones of the inner and outer drums, not the possibility of increasing the washing time.

The purpose of the invention is to improve the quality of washing of the frozen material.

The goal is achieved by the fact that the machine is equipped with two cones, one of which is mounted on the loading end of the inner drum, and the other is concentric on the discharge part of the inner drum and connects the overload zone with the outer drum flushing zone, and an additional helix is installed on the outer side of the inner drum. . An additional spiral is made of individual swivel blades mounted on a removable frame.

The drawing shows a washing machine, a longitudinal section ..

The machine consists of an outer drum 1 and a rigidly connected inner drum 2, a screw feeder 3, a transshipment device with a truncated cone 5, which concentrically covers the inner drum of the loading and unloading cone 6, elevator 7. Inside the drums there are fixed helical spirals 8 and 9, having left and right coiling. On the outer surface of the inner drum, on the frame 10 in a spiral mounted rotary blades 11, forming an additional spiral. The outer drum is mounted on frame 1 by means of bandages 12 and roller bearings 13, which is connected to hinge supports 15 at one end, while the other end rests on screw supports 16. The working body is driven in rotation by electric motor 17 by means of gearbox 18 and helical gear 19. Material and mountain feed whose water in the machine is carried out by the tray 20, the water of the usual temperature - i through the pipe 21. The sludge is discharged through the hole 22, the washed material - through the drain 23.

The machine works as follows.

The material with hot water is loaded through the cone 6 into the inner drum 2, during the passage of the drum 2 it is defrosted and partially washed off from contaminating impurities. The temperature and flow of water used in the inner drum for

defrosting the material, it is established, depending on the state of its freezing, the content of contaminating impurities, the size of the material. From the inner drum 2, the mixture of material with water enters the transshipment device, from which the material is transferred to the feeder 3, and water is poured over the inner surface of the cone 5

to the outer drum 1. The feeder 3 uniformly supplies the material to the washing zone of the outer drum, where it is finally rinsed and rinsed. When the outer drum rotates, the material, having made an intensive cascade-waterfall circulation movement, moves towards the load side. In the process of movement, abrasion of clay inclusions with blades 11 and durable pieces of material occurs. The washed material is discharged from the machine through elevators 7 and cones 6. Technological water is fed simultaneously to both drums. The cold water entering pipe 21 is used to rinse the material after rinsing. The pulp impurities opened in both drums are removed to a drain through the annular opening 22 of the feeder. The time of washing the material in the outer drum is regulated by means of the rotary blades 11 and the angle of inclination of the frame I, on which the drums are mounted. By adjusting the angle of inclination of the blades 11 and the frame} k, the optimum speed of material and water movement in the inner drum and countercurrent in the outer drum is achieved.

The advantage of this machine is to improve the quality of the washed material containing frozen clay impurities due to the elimination of heat loss when transferring material from the inner drum to the outer drum, the ability to effectively flush a larger material compared to the used devices of this type.

Claims (3)

Invention Formula 551. Washing machine for frozen material containing two concentrically mounted drums with spirals on the inner sides, an elevator for handling and unloading material, a feeder, an actuator and a frame characterized in that, in order to improve the quality of washing of the frozen material, the machine has two cones, one of which is mounted at the loading end of the inner drum and the other is concentric on the discharge part of the inner drum and connects the overload zone with the washing zone of the outer drum, and on the outer side of the inner drum additional spraying. 76 2. Machine pop. 1, different from the fact that the additional helix is made of individual swivel blades mounted on a removable frame. Sources of information taken into account in the examination, 1. Trinity B, B. Pokokyvka minerals. N., Nedra, 1978, p.93. 2. USSR author's certificate number 25653, cl. B 03 B 5L2, 1972. 3. USSR author's certificate number 227223, cl. At 03 On 5/56, 1967 (prototype).