Sediment discharging net chain of sorting machine

Abstract

A sediment discharging net chain of a sorting machine comprises scrapers arranged above an air distribution plate and a round ring chain, wherein open type connection rings for connecting the scarpers are arranged on the round ring chain at intervals, and a discharging net walking along with the scrapers is arranged between the scrapers. The discharging net is formed by a short plate net, a long plate net and a short plate net which are hinged together respectively, and the two short plate nets are hinged to the scrapers respectively and supported by the scrapers. The total length of the three plate nets is larger than the space between the scrapers. The long plate net goes down and the two ends of the short plate net go up to form a telescopic groove. Universal connectors are arranged between the open type connection rings and the scrapers, sides of the universal connectors are connected with the scrapers through pins, and other sides of the universal connectors are connected with the open type connection rings through bolts. The sediment discharging net chain can prevent sinking of materials with large particle sizes, facilitates to solve problems of chain breakage and easy blockage of a fluidization structure caused by material stuffing between the scrapers and the fluidization structure, and is simple in structure, good in sorting effect, easy to dismantle and maintain and reliable in performance.

Description

technical field [0001] The invention relates to a discharge network chain for heavy objects of a sorter, which is especially suitable for discharging the heavy objects of a separator in the field of dense medium fluidized bed coal preparation. Background technique [0002] Dense medium coal preparation is currently widely used due to its high separation accuracy, wide range of separation particle size, adjustable density, and strong adaptability. The dense medium separator uses magnetite powder and coal powder as weighting substances, which are fluidized under the action of water or air and become the medium for coal preparation. During the separation process, the materials are layered according to density. Gravity sorting is carried out. The light and heavy products (sediments) after stratification are discharged by the discharge mechanism respectively to obtain effective separation. The sunken objects are scraped out by the scraper, and the scraper and the open connectin...

AI Technical Summary

Problems solved by technology

Because when there is material between the scraper and the fluidization structure, more material will enter, so the probability of being broken is not high, and the large deformation of the fluidization structure not only affects the fluidization effect, but also probably destroys the fluidization effect. structure, so that the equipment loses the sorting function

When the scraper chain is partially raised, not only the stiffness of the scraper is tested, but also the force on the connecting ring is not in a straight line, and it is easier to generate torsion to the circular link chain, resulting in fracture damage to the connecting ring

In addition, the length of the two chains will be different due to the accumulation of tolerances. At this time, if the scraper and the connecting piece are rigid, they will be deflected from the direction of motion, which will also cause the breakage of the connecting ring

Because the gap between the scraper and the fluidized structure is smaller than the maximum particle size of the sinking material, the driving force of the scraper directly acts on the fluidized structure through the material, which accelerates the blocking effect of heavy products on the fluidized structure, resulting in the fluidization of the fluidized structure The effect becomes worse, which leads to the worsening of the sorting effect

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