High-pressure compressing solid-liquid separation device of flexible pipe

Abstract

The invention relates to a high-pressure compressing solid-liquid separation device of a flexible pipe. Pipe-shaped filtering medium at the utmost outside layer adopts a steel wire braid conveyer belt, and filter residue left on the filtering medium is removed in filtering by using a piston scrapper plate; the solid-liquid separation is accomplished in compressing by utilizing the principle of filter chamber variable-volume compression, the filter chamber is almost close to zero in volume after volume variation, and does not need a high-pressure pump to convey raw materials and does not need an additional compression water pump system or compression compressed air system as the filter pushing force of a filter press; and a pressing assembly of a pressing application system adopts an pressing reinforced connection rod mechanism, not only the pushing force is increased by dozens of times, but also the pressure is maximal when the pressing stroke is over with the filter pressure up to 2.5MPa. The device can adopt repeated treading and filtering, the alternating change of the thickness and the thinness of the raw materials in compression improves the filtering speed, washing speed and efficiency; the humidity of a filter cake is uniform; the washing regeneration of filter mediums is automatically accomplished; the residue discharge is automatically accomplished; the production process can realize complete automazation, so that the energy consumption is reduced, and the production efficiency is higher; and the manufacture cost is low due to the utilization of screw rod for clamping and compression.

Description

technical field [0001] The invention relates to a flexible tube high-pressure press solid-liquid separation device for solid-liquid treatment of viscous and fine-grained substances, especially suitable for papermaking wastewater treatment, sludge treatment, river dredging mud treatment, drilling mud treatment, and wet smelting wastewater treatment , Coal washing wastewater treatment, livestock and poultry breeding pollutants disposal and filling mining mud treatment and other projects of solid-liquid separation, also applicable to the requirements of pressing, leaching, hot press filtration or washing of chemical substances in industries such as traditional Chinese medicine, food and chemical industry; It is especially suitable for the production of liquid fuel from biological raw materials, activated sludge, coal and other raw materials; they all need to obtain filter residues with low liquid content under the premise of low energy consumption and high efficiency. Background...

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Problems solved by technology

[0002] In the existing flexible tube high-pressure press solid-liquid separation device, for example, in the "flexible tube filter" application number 200420092669.X, "flexible tube filter" application number 2004100779750, the known technology adopts the tubular grid design In this scheme, the stress is relatively large when the filter chamber is deformed under pressure, so the lead axis of the filter tube unit is relatively long, and the manufacturing cost is relatively high; the compression assembly of the pressure application system adopts the diaphragm pressure plate frame pressure The hydraulic cylinder drive or screw drive of the filter, the pressing force P of the pressing assembly is equal to the pressing force F generated by the pressing force generating mechanism, and the pressing force F is consistent in the pressing stroke and cannot be multiplied. The maximum pressing force cannot be produced in the later stage of the stroke. If a larger pressing force is required, a large amount of expensive metal materials will be consumed in the compaction assembly; these factors affect the reduction of manufacturing costs and the improvement of efficiency, which restricts the solid-liquid separation device. promotional use of

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