Flexible tube type cut-off valve capable of being used in flexible tube solid-liquid processing device

Abstract

The invention provides a flexible pipe-typed stop valve which applies force on the flexible pipe chamber by a holder-typed connecting rod mechanism, thus staving the pipe wall and blocking the internal flow passage of the flexible pipe chamber, thereby achieving the object of stopping the fluid. The stop valve has no possibility of leakage or corrosion as the stop valve has no gaps besides a flange connected with the pipeline and the mechanical part used for cutting off the fluid (holder-typed connecting rod mechanism) is shielded at the external side by the flexible pipe chamber. The requirement of automatic reciprocating opening and closing of the valve can be met by driving the holder-typed connecting rod mechanism by a reciprocating execution mechanism. The stop valve is especially suitable for flexible pipe solid / liquid disposal device which adopts various film components; when the stop valve is combined with the technical proposal of the original film component, the structure is simplified further, the service life is prolonged further, and the price quality of the flexible pipe solid / liquid disposal device is greatly improved; particularly, the flexible pipe chamber adopts filter medium material such as micro-porous material using non-woven cloth or polyester fiber, therefore, the flexible pipe chamber can be also used as a filter element when in use.

Description

Technical field [0001] The invention relates to a seamless shut-off valve used in a pipeline system for conveying fluids of viscous and fine-grained substances, which is used for throttling or cutting off or distributing fluid, in particular to a flexible tube that can be used in a flexible tube solid-liquid treatment device Type stop valve; this technology belongs to the field of fluid machinery. Background technique [0002] The cut-off valve used in the transportation of the existing viscous and fine-grained fluids is difficult to adapt to the slurry containing fine sand. One is because the slurry of fine sand often jams the valve core or valve plate or valve stem. , The closing is not tight; the second is that the shut-off valve is often worn or corroded due to the components of the mud that contact the fine sand; the third is that it often leaks from the valve stem, etc.; the fourth is that the components are made of precious metals and the cost is high; It cannot meet the s...

AI Technical Summary

Problems solved by technology

[0002] The globe valve used in the delivery of the existing viscous and fine-grained fluids is difficult to adapt to the mud containing fine sand, one is because the mud with fine sand often blocks the valve core, valve plate or valve stem Second, the shut-off valve is often worn or corroded by components exposed to the mud of fine sand particles; third, it often leaks from the valve stem, etc.; fourth, the components are made of precious metals, and the cost is relatively high; It cannot adapt to the special requirements of the flexible tubular solid-liquid treatment device, for example: the traction cable needs to pass through the fluid channel of the valve cavity

[0003] The flexible tube solid-liquid treatment device is a multi-functional treatment equipment proposed by me. It is suitable for sludge treatment, papermaking wastewater treatment, river dredging mud treatment, drilling mud treatment, wet smelting wastewater treatment, coal washing wastewater treatment, livestock and poultry Chemical treatment processes such as solid-liquid separation, thermal hydrolysis oxidation, heating, and concentration of projects such as aquaculture pollutant disposal and filling mining mud treatment can also be carried out at the same time. The flexible tubular solid-liquid treatment device I have proposed Among them, for example, in the application number 200420092669.X of "Flexible Tube Filter", the application number 200510063677.5 of "Flexible Tube Type Solid-Liquid Processor and Its Multiple Use Methods" and "Flexible Tube Hot Press Filter Activated Sludge Solid-Liquid Treatment Device" "Application No. 200610084906.1 The slag discharge valve adopted by the known technology is still relatively complicated, especially for the flexible tube solid-liquid treatment device that needs both squeezing and continuous filtering functions, such as "flexible tube side by side high temperature, high pressure pressing and drying Solid-liquid treatment device" application number 200710146290.0, "high-speed filtration, high temperature, high pressure pressing and drying flexible tube solid-liquid treatment device" application number 200710146291.5, "flexible tube side-by-side series high-temperature, high-pressure pressing and drying solid-liquid treatment device" application number 200710146292.X and "flexible pipe side by side in series high-speed, high-pressure pressing and drying solid-liquid treatment device" application number 200710149861.6 need more simple structure, high performance and reliable operation; these have affected the filtering, pressing, heating and The drying speed is further improved

Images