SU531544A1 - Hydraulic classifier - Google Patents

Description

the soil collector is connected by a system of levers 10 and m grams. And with an adjusting valve and an electromechanical actuator 12. In the upper part of the receiving and separating chamber there is a nozzle 13 for removing the drain. The initial slurry along the inlet branch pipe 1 is fed into the separation chamber 2 under pressure. Additional water is fed into it through the classification chambers 3. In the receiving-separating chamber, an upward flow is formed with a fluidized bed of grains of solid material close to the boundary size of the separation. In this case, particles smaller than the boundary size are carried away in an upward flow through the nozzle 13 for discharge removal 15, and grains larger than the boundary size enter the soil collecting chamber 6 through the classifying chambers 3. parietal zone in their central part, which prevents the ingress of small particles into the soil receptacle 6. A reducing valve 9 installed on the nozzle 4 of additional water ensures a constant pressure of the water supplied to the classifier Jun. The proportional replenishment with additional water of the volume of the slurry of a large product flowing through the shutter 7 of the soil collector 6 is achieved as a result of 30

kinematic connection of the adjusting valve 5 with the shutter 7. 5

Claims (2)

lizators, made in the form of lateral rings. With a larger opening of the shutter 7, an adjusting valve opens, and vice versa, by a larger amount. This ensures the constancy of the speeds of the upward flow of additional water in the classifying chambers at a variable flow rate of the slurry of a large product, which has a positive effect on the quality of the separation products. Claim 1. Hydraulic classifier for separating granular materials by size, including a receiving-separating chamber, having connections for supplying the initial slurry and removing the drain, classifying cylindrical chambers with an additional water connection and positioning the bottom of the collector, different in that in order to maintain a constant upstream flow rate in the classification chambers, the auxiliary water nozzle is equipped with a pressure reducing valve and an adjusting valve, connecting nennym system of t g and levers with a shutter of the soil collector. 2. A classifier according to claim 1, characterized in that, in order to prevent nopadapes of the fines fraction in the soil collector, turbul-l are installed in the classification chambers fuz 3