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How the sludge drying process uses heat transfer oil to heat

Author: mold temperature machine manufacturers time: 2019/8/13 16:10:54 Views:
The heat-conducting oil heating and drying process uses hot oil as the heat medium to heat and dry the sludge, drying the 70% -80% sludge that has undergone first-stage dehydration to a water content of 40%, and its thermal efficiency can reach 95%. Above, operation

The heat-conducting oil heating and drying process uses hot oil as the heat medium to heat and dry the sludge, drying the 70% -80% sludge that has undergone first-stage dehydration to a water content of 40%, and its thermal efficiency can reach 95%. Above, the operating environment meets environmental protection requirements. The jacket is heated to 300 ° C with heat transfer oil (the oil is returned to the oil temperature machine for cyclic heating), and is gradually dried under the action of propelling blades and jacket heating. The water vapor (100-120 ° C) released from the filter cake during the drying process is carried by the hot air heated by the fin radiator, and is discharged through a moisture exhaust port provided on the top of the dryer.
The sludge is mainly composed of low-level organic substances such as amino acids, humic acids, bacteria and their metabolites, polycyclic aromatic hydrocarbons, heterocyclic compounds, organic sulfides, volatile odors, and organic fluoride. It will continue to develop, improve and be welcomed. The equipment is also developing in a large scale, and at the same time, it is continuously improving in safety performance, including environmental friendliness. The study of reducing energy consumption has significantly improved the economic feasibility of sludge drying. Which sludge drying technology is used depends on the actual situation and conditions. Used in municipal, food, feed, chemical, printing and dyeing, papermaking, electroplating, petrochemical, electronics, urban sewage treatment plants, etc.

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