High-speed filtering, high-temperature, high-pressure squeezing and drying flexible tube type solid-liquid processing equipment

Abstract

The invention provides a high-speed filtration and high-temperature and high-pressure squeezing and drying flexible pipe typed solid / liquid processing device; during the filtrating process, a piston slag scraper is used for removing the filtrated slag remained on the filter medium and replace a compressor and a filter machine at the same time; during the squeezing process, the solid / liquid separation is completed by a squeezing principle of changing volume of a filter chamber; the volume of the filter chamber can be near zero after the volume is changed; high pressure pump can not be needed to convey the raw material and additional squeezing water pump systems or squeezing air systems are not required to be taken as the filter pushing force of a press-filter; the mechanical pushing force is large and the pressurizing is quicker; repeated nipping filtration can be adopted; the washing filter slag is dipped; during the squeezing process, the alternative change of the thickness of the raw material improves the filtration speed, the washing speed and the efficiency; the humidity of a filter cake is uniform; the filtration and squeezing can be carried out at the same time when the vacuum or steam drying is carried out; the production quantity of each sequence batch is easily changed according to the requirement of production capability; the washing regeneration of the filter medium is automatically completed; the slag drainage is automatically completed; during the production process, automation can be completely realized, the energy dissipation is reduced and the production efficiency is high.

Description

technical field [0001] The invention relates to a high-speed filtration, high-temperature, high-pressure pressing and drying flexible tubular solid-liquid treatment device for solid-liquid treatment of viscous and fine-grained substances, especially suitable for papermaking wastewater treatment, sludge treatment, river dredging mud treatment, drilling Solid-liquid separation of mud treatment, wet smelting wastewater treatment, coal washing wastewater treatment, livestock and poultry breeding pollutants disposal and filling mining mud treatment. It is also suitable for pressing, leaching, Requirements such as hot pressing reaction or washing; especially suitable for the production of liquid fuel from raw materials such as biological raw materials, activated sludge and coal; they all need to obtain filter residues with low liquid content on the premise of low energy consumption and high efficiency . Background technique [0002] In the existing flexible tube type solid-liquid...

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Problems solved by technology

[0002] In the existing flexible tube type solid-liquid treatment device, for example, in "flexible tube filter" application number 200420092669. Type filter" application number 200510063679.X, "flexible tube hot filter type activated sludge solid-liquid treatment device" application number 200610084906.1 and "flexible tube type solid-liquid treatment device" application number 200710048403.1. The slag scraper scheme of the slag piston mechanism and the propeller blades, these schemes are very innovative in pressing, but they still cannot remove the filter residue attached to the filter membrane and unload the filter residue when filtering, just like the existing diaphragm press plate and frame filter press. The mechanism is still relatively complicated, which affects the further improvement of filtration and pressing speed; the manufacturing cost still needs to be further reduced

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