A sludge treatment device

Abstract

The invention provides a sludge treatment device, which comprises a hollow shell, and is provided with: a sludge input pipeline, a filter press device, a hydraulic press, a conveyor belt and a collection box in the shell, wherein the filter press device includes an upper part and a bottom part respectively provided with Squeeze chamber with two opposite movable doors, the middle of the movable door is the accommodation space for liquid flow, the side facing the inside of the extrusion chamber is a filter plate, and a sewage pipe for discharging the internal liquid is arranged in the accommodation space; in the extrusion chamber A plurality of extruding plates are arranged side by side, and each extruding plate is flexibly connected with each other through a connecting plate. It is connected with the adjacent extrusion plate; the conveyor belt is located below the extrusion chamber, and the collection box is used to receive the sludge and liquid falling from above. The present invention not only can increase the extrusion power through the hydraulic press installed symmetrically on both sides, but also can keep the thrust balance without affecting the overall structure, so that the final sludge water content is only 40%-60%.

Description

technical field [0001] The invention relates to the field of environmental protection, in particular to a sludge treatment device capable of improving the filter press effect and having multiple treatment functions. Background technique [0002] The current sludge treatment method is a process of reducing, stabilizing and harmless sludge such as concentration, conditioning, dehydration, stabilization, drying or incineration. [0003] Sludge is generally a product of sewage treatment. The sludge produced in different industries has different components, but they all contain a large amount of organic matter, heavy metals, and mold. If they are directly discharged without subsequent treatment, they will cause serious pollution to the environment. , Therefore, it is often necessary to carry out various processing on the sludge to reduce the harm and at the same time reuse it. [0004] One of the steps in sludge treatment is to compress it for dehydration treatment, but the exis...

AI Technical Summary

Problems solved by technology

Although this structure can achieve the purpose of extruding sludge to filter water, due to the way of extruding on one side, the force on the entire fixed frame will be uneven. After long-term use, the entire frame will be deformed, and the hydraulic equipment and extrusion The distance between the platens reduces the squeeze effect

[0006] In addition, the spring is used as the buffer part between the extrusion plates. First, the spring itself has a limit compression width, which affects the extrusion width of the sludge in the interlayer; second, part of the extrusion force is offset by the spring force, which indirectly increases the pressure of the hydraulic equipment. The third is that the elastic strength of the spring decreases after long-term use, which affects the opening width of the extruded plate

[0007] There are also some equipment with a single treatment function, which can only deal with a certain type of sludge, and the adaptability is too low

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