Wedge pressurized sawtooth groove double-sided dehydration upper press belt filter press

Abstract

The invention discloses a two-sided dewatering upper squeezing belt filter press for a wedge-shaped pressurizing sawtooth groove. The two-sided dewatering upper squeezing belt filter press mainly comprises a rack, a squeezing region, a drive device, a feeding and pulp spraying device, a wedge-shaped pressurizing sawtooth groove two-sided dewatering plate, a rotary dewatering device, a scraper discharging device, a correcting device, a pneumatic tensioning device, a water spraying cleaning device and a water receiving tank device. The wedge-shaped pressurizing sawtooth groove two-sided dewatering plate is divided into an upper filter net and a lower filter net, an included angle being greater than 0 degree and less than 3 degrees is formed between the upper filter net and the lower filter net, a wedge-shaped pressurizing sawtooth groove two-sided dewatering feeding hole is larger than a discharging hole, the pressurizing is achieved according to operation of the filter nets, the two-sided dewatering effect is achieved according to the sawtooth groove and a circular hole of the dewatering plate, the drive device comprises a motor and a gearbox, so that the dewatering effect is greatly improved; meanwhile, the service life of a filter strip can be effectively prolonged, and the operation energy consumption of the filter press can be reduced.

Description

technical field [0001] The invention relates to a belt filter press, in particular to a filter press used for treating various organic and inorganic microparticle suspensions or Wedge pressurized sawtooth groove double-sided dehydration upper press belt filter press for solid-liquid separation of solid-liquid mixture. Background technique [0002] The concentration and transportation of pulp in paper mills, chemical plants, water treatment plants, food factories and farms, and the final treatment of various organic and inorganic microparticle suspensions or solid-liquid mixtures are generally landfilled, incinerated or comprehensively utilized , in order to save landfill, reduce sewage pollution, save incineration and drying energy, effective comprehensive utilization, and transportation of concentrated raw materials, these materials need to be dehydrated before final treatment to make them reach a certain solid content; these materials More solid-liquid separation equipmen...

AI Technical Summary

Problems solved by technology

The belt filter press disclosed in the above Chinese patent has made substantial progress in improving the dehydration efficiency of the belt filter press, but when the slurry concentration is low (1-5%), the solids of the dehydrated material It is difficult to achieve when the content is increased to more than 35%; when the concentration of the incoming slurry is low, and the pressure is increased, it is easy to cause the slurry to squeeze from both sides of the upper and lower filter screens and lose seriously. Due to gravity, the upper filter screen is dehydrated and then enters the filter screen again. The high concentration requirement cannot be achieved in the cake; in addition, the water that passes through the surface of the running adsorption roller after the water is released during pressing and dehydration is reabsorbed by the filter cake, which cannot achieve the effect of separation and increase of concentration

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