Filter-aid feeder on horizontal screw discharge filter centrifuge

Abstract

The invention discloses a filter aid feeder on a horizontal spiral unloading filter centrifuge. The centrifuge includes a casing, a main shaft arranged in the casing, and a rotating drum sleeved on the main shaft. The filter aid feeder is arranged on the feed end of the drum, and the filter feeder includes a feed pipe inserted in the casing, and a feed screw provided on the discharge end of the feed pipe, and the feed screw includes an inner cavity The feeding spiral tube, the rotating shaft inserted in the feeding spiral tube, the spiral blade fixed on the rotating shaft and distributed along its axial direction, the front end of the feeding spiral tube is inserted in the inner cavity of the drum, The upper tube wall of the feeding spiral tube is provided with a feed inlet that communicates with the inner cavity of the feeding tube. The filter aid feeder also includes a primary filter device arranged on the inner side of the lower tube wall of the feeding spiral tube. The primary filter device includes a The primary filter screen under the rotating shaft, the filter feeder has a simple structure, greatly reduces the liquid content of the material entering the drum, and greatly improves the solid-liquid separation capacity of the drum.

Description

technical field [0001] The invention relates to the field of discharge centrifuges, in particular to a filter aid feeder on a horizontal screw discharge filter centrifuge. Background technique [0002] As a solid-liquid separation equipment, the screw discharge filter centrifuge is widely used in chemical industry, coal, food and other industries. The working principle of the screw discharge filter centrifuge is: the material enters the high-speed rotating drum through the feed pipe, the liquid is thrown into the casing through the screen on the drum and discharged, and the solid phase material trapped on the screen is pushed by the screw. Under the action of the feeder, the drum is gradually pushed out, and the liquid is continuously removed during the advancing process. The feeding method under normal conditions is to enter the drum through the elbow (see figure 1 As shown), when some material particles are large and the proportion of liquid is too high, when it enters t...

AI Technical Summary

Problems solved by technology

The feeding method under normal conditions is to enter the drum through the elbow (see figure 1 As shown), when some material particles are large and the proportion of liquid is too high, when it enters the centrifuge drum through the feed pipe, the screen on the inner wall of the drum has no time to remove the liquid, which will cause the separated solid phase moisture content Too high, can not meet the requirements, so that the centrifuge can not be used normally

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