Triangular belt type filter press

Abstract

The invention discloses a wedge-shaped draper-type press filter which consists essentially of a chassis, a pressing area, a driving device, a feeding device, a scrapper assembly, a deviation-rectifying device, a rinsing device and a water receiving device. The structure of the wedge-shaped draper-type press filter is characterized in that the pressing area is a wedge-shaped pressing area with an included angle more than zero degree but less than 15 degrees between an upper filter strip and a lower filter strip; the wedge-shaped pressing area is divided into an upper press area and a lower press area; respective tension band and filter strip of the upper press area and the lower press area are stacked and wrapped outside respective press roll in parallel; the tension band is stuck to the press roll and the filter strip is firmly stuck outside the tension band; the press rolls of two press areas are arranged in a counter pressure way. The draper-type press filter of the invention adopts a single wedge-shaped press area, changes press dehydration technique of the prior art that adopts a plurality of press rolls to enwind and operate in snaking way, realizes that the press roll operates press dehydration in a counter pressure and liner way, greatly reduces the abrasion of the filter strips caused by tension, effectively prolongs the service life of the filter strips and can reduce operation energy consumption of the press filter.

Description

technical field [0001] The invention relates to a belt filter press, in particular to a filter press for treating various organic and inorganic particle suspensions such as industrial waste water, paper pulp, oily sludge, and domestic sludge in the papermaking industry, chemical industry, and food industry. Or wedge-shaped belt filter press for solid-liquid separation of solid-liquid mixture. Background technique [0002] The final treatment of various organic and inorganic microparticle suspensions or solid-liquid mixtures produced by paper mills, chemical plants, water treatment plants, food factories, and farms is generally landfill, incineration, or comprehensive utilization. In order to save landfill land , Reducing sewage pollution, saving incineration and drying energy, and effective comprehensive utilization. Before final treatment, these materials need to be dehydrated to make them reach a certain solid content. The dehydration treatment of these materials chooses ...

AI Technical Summary

Problems solved by technology

However, when the above-mentioned belt filter press in the prior art is in operation, the filter cake of the dehydrated material in the press area, the filter belt and the tension belt do snake motion along the outer diameter arc of the press roll together. The plate chain belts used are all in snaking motion, which consumes a lot of power and severely wears the filter belt sandwiched in the middle, which affects the effective service life of the filter belt.

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