Coarse coal slime sorting machine

Abstract

The invention discloses a coarse coal slime sorting machine. The coarse coal slime sorting machine comprises a main engine barrel body, a platform, an electric actuator, a water tank, a water tank spraying device, a feeding bottom interfering device, a feeding device, a top cover, an overflow weir plate and a lower conical body, and is characterized in that a tapered diffusion platform is arranged on the upper end of the lower conical body; the big-diameter end of the tapered diffusion platform is fixedly connected to the lower conical body while the small-diameter end thereof corresponds to an outlet of a feeding barrel body and is in clearance fit with the feeding barrel body, so that a material is benefited to be diffused in an umbrella-shaped manner automatically along the periphery of the tapered diffusion platform without increasing a feeding pressure, and the diffused material is mixed with rising water flow sprayed by the water tank to generate a turbulent flow. The coarse coal slime sorting machine has the advantages of a novel structure, high sorting efficiency, no need of increasing the feeding pressure, low water content of the material when being discharged, high solid content, remarkable sorting effect, production cost reduction, process cost reduction and the like.

Description

technical field [0001] The invention relates to the technical field of coal mine mechanical equipment, in particular to a coarse coal slime separator. Background technique [0002] As we all know, the existing coarse slime separator is a kind of turbulence interference floating-sink type separator. After searching, CN202700634 discloses a utility model patent of a coarse slime separator, which includes a host cylinder, a platform, Electric actuator, water tank, water tank injection device, feeding bottom interference device, feeding device, top cover, overflow weir plate and lower cone, the coarse coal slime separator is characterized in that it includes a cylinder , pressure differential adjustable overflow weir, feeding device, cone valve sealing assembly, electric actuator, water tank and observation platform, wherein the bottom of the cylinder is equipped with a water tank, and the upper end is equipped with a differential pressure adjustable overflow weir, so An obser...

AI Technical Summary

Problems solved by technology

When the gangue impurities are discharged, the bed with high density at the bottom will drop, so that the pressure of the material on the detector will decrease, and the output density value will be less than the set value, and the PLC controller will send the Songcheng signal to the electric actuator, and the cone will be closed. The valve reciprocates from here to keep the sorting in a balanced state. The disadvantage is that when the feeding pressure is insufficient, the material is easy to accumulate on the anti-scattering arc plate, so that the density of the material around the anti-scattering arc plate is greater than that of the peripheral space of the anti-scattering arc plate. Density, leading to unsatisfactory sorting effect

[0003] In order to solve the technical problems in the above-mentioned patents, CN103418487 discloses a kind of invention patent application for a coarse coal slime separator. Swirl flow interference device, this kind of swirl flow interference device is equipped with an arc-shaped plate on the flat plate at the upper end of the cone, so that the material that swirls down can be diverted and diffused through the arc-shaped plate. The pressure is uncertain, so that the swirling angle of the material often changes. When the swirling material at different angles touches the flat plate, the flat plate and the arc-shaped plate on the flat plate offset the swirling force of the material, thereby changing the swirling angle of the material. , so that the degree of diffusion of the material in the cylinder changes little, and it is easy to accumulate the material on the flat plate, causing the material to scatter without forming a swirling flow, which affects the separation effect. It can be seen that this patent cannot solve the separation problem. Substantial inadequacy of the machine

[0004] Moreover, the main problem of the existing coarse coal slime separator is that due to the natural flow of the rising material from the overflow weir, the material particles are slightly heavier than water It is not easy to discharge, resulting in high water content, low solid content, and unsatisfactory sorting effect; secondly, because the original feeding well is a tangential feeding method, and because the feeding pressure is different, when the pressure is small, the material cannot form a swirling flow to make the material Scatter, affect the sorting effect

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