MVR-based sludge drying device

Abstract

The invention discloses an MVR-based sludge drying device, comprising a casing body. A crushing box is arranged at the top end of inside of the casing body, a sludge inlet communicated with the crushing box is arranged on one side of the upper surface of the casing body, a drying box is fixed at an intermediate position inside the casing body through a bracket, an MVR steam compressor is installedon a bottom side of the inside of the casing body, a discharging pipe is connected between the top of the drying box and the bottom of the crushing box, and a steam channel is connected between one side of the bottom of the drying box and one side of the top of the MVR steam compressor. The MVR-based sludge drying device can recover residual heat of drying sludge, prevent waste of resources, avoid causing secondary pollution on the environment, realize energy saving and environmental protection of the device, and at the same time, realize the condensed water purification, remove impurities ofthe condensed water, be convenient for the external use, realize the noise absorption and noise reduction of the device, prevent noise pollution, improve working environment quality of workers, and be convenient for worker to work.

Description

technical field [0001] The invention belongs to the technical field of MVR, and in particular relates to an MVR-based sludge drying device. Background technique [0002] MVR is mechanical vapor recompression technology, which uses the secondary steam and its energy generated by the evaporation system itself to upgrade the low-grade steam through the mechanical work of the compressor into a high-grade steam heat source. MVR is mainly used for evaporating and concentrating materials. Compared with the traditional multi-effect evaporation, it has the advantages of energy saving. At present, it has been successfully used in the fields of zero discharge of chemical wastewater, organic concentration of sugar alcohols, concentration of pharmaceutical intermediates, and utilization of rectification waste steam. [0003] However, the MVR sludge drying devices currently on the market still have certain defects in the sludge drying process. For example, after the sludge is dried, dry s...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a sludge drying device based on MVR to solve the problem of dry sludge formed after the sludge is dried in the above background technology, and the residual heat is directly discharged, which is easy to cause energy loss and cause environmental damage. Secondary pollution, in addition, it is easy to generate noise when the device is working, which is likely to cause noise pollution and affect the work of workers

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