Method and apparatus for drying sludge

Details Method and apparatus for drying sludge Method and apparatus for drying sludge

1986-09-10

1988-07-12

Schwartz, L. I.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

34 39, 34 40, 34182, 34183, F26B 320

Patent

active

047560924

ABSTRACT:
An apparatus and method for removing water from sludge waste material is provided. A layer of sludge is disposed upon an endless screen belt which is in turn dragged across a heated plate such that water in the sludge is evaporated and escapes from the sludge as steam. The endless screen is formed by a chain link belt which provides a plurality of discrete containers for small volumes of the sludge. The sludge may also be preheated just prior to drying by the injection of hot air columns into the sludge, such that the sludge is heated and agitated. The steam escaping from the drying sludge is directed into a heat exchanger which in turn heats the preheating air. Waste gases from a heating station are returned to the burner at the heating station to oxidize foul smelling chemicals and then reduce the odors generated by a sludge drying operation. If it is desired to retain some of the proteins in the sludge, the temperature of the heated plate is regulated such that the temperature if the sludge is not raised above approximately 256 degrees Fahrenheit, which is the point at which many proteins are effectively destroyed.

REFERENCES:
patent: 3744145 (1973-07-01), Maxwell et al.

Affiliated with

Also associated with

Rating

Method and apparatus for drying sludge does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for drying sludge, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for drying sludge will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-657481