MVR belt sludge drying machine

A technology of belt drying machine and sludge, which is applied in sludge treatment, water/sludge/sewage treatment, sludge treatment through temperature control, etc. It can solve the problems of safety risks, lower oxygen content, high energy consumption, etc. problems, to achieve the effect of long service life, suppression of volatilization, and less wearing parts

CN106045274APending Publication Date: 2016-10-26SHANDONG BO RUN IND TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2016-10-26

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Abstract

The invention discloses an MVR belt sludge drying machine which comprises a drying box body, an auxiliary box body, a sludge forming device, at least one layer of mesh belt, a vapor heater, an MVR vapor compression device and a sludge heat exchanger, wherein the auxiliary box body 2 is connected with the drying box body 1 through an air duct; the mesh belt is arranged in the drying box body; the sludge forming device is arranged above one end of the mesh belt, and is used for squeezing sludge to be dried into strips to be sent to the mesh belt; the MVR vapor compression device and the vapor heater are mounted in the auxiliary box body on the side of the drying box body. The sludge is subjected to drying treatment through circulating vapor of the MVR vapor compression device and the vapor heater; the MVR belt sludge drying machine adopts MVR vapor compression work and conducts totally closed operation, the condensing temperature is increased through vapor compression, the purpose of cyclic utilization of heat is achieved by utilizing heat exchange by the vapor heater 5, and the operation cost is reduced.
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Description

technical field

[0001] The invention relates to the field of drying equipment, in particular to an MVR sludge belt dryer. Background technique

[0002] Sludge drying is a process that uses thermal energy to remove most of the water content from sludge. By heating, the moisture in the material (generally refers to water or other volatile liquid components) is vaporized and escaped to obtain a specified moisture content. of solid materials. The purpose of drying is to meet the needs of material use or further processing. Since natural drying is far from meeting the needs of production development, various mechanized dryers are more and more widely used.

[0003] The drying process consumes a lot of heat energy. In order to save energy, some materials with high moisture content, suspensions or solutions containing solid substances are generally dehydrated mechanically or evaporated by heating, and then dried in a dryer to obtain dry solids. During the drying process, it is n...

Examples

Embodiment Construction

[0031] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0032] Such as figure 1 , figure 2 As shown, the MVR sludge belt dryer includes a drying box 1, an auxiliary box 2, a sludge forming device 3, at least one layer of mesh belt 4, a steam heater 5, an MVR vapor compression device 6 and a sludge exchange The heater 7, the auxiliary box 2 and the drying box 1 are connected through an air duct, and the drying box 1 is provided with at least one layer of mesh belt 4, and the upper part of one end of the mesh belt 4 is provided with a sludge feeding port 11, and the sewage Below the mud feed port 11 is a sludge forming device 3, which is used to form the sludge to be dried onto the mesh belt 4, and the steam heater 5 and the MVR vapor compression device 6 are installed in the drying box 1 in the auxiliary box 2 on the side.

[0033] The preferred two-layer mesh belt in this embodiment, the first la...