The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 04, 1987
Filed:
Mar. 06, 1986
Susanne Andersson, Enebyberg, SE;
Jan-Erik Gustafsson, Taby, SE;
Torbjorn Herngren, Alvsjo, SE;
Staffan Carlsson, Monster.ang.s, SE;
Gunnar Hage, Va.ang.s, SE;
Svenska Traforskningsinstitutet, Stockholm, SE;
Sodra Skogsagarna AB--Monsteras Bruk, Monster.ang.s, SE;
ASEA Aktiebolag, Vaster.ang.s, SE;
Abstract
A method for controlling the combustion and reduction processes in a black liquor (B.L.) boiler of a paper pulp plant by influencing the feeding of black liquor to the B.L. recovery boiler by means of a B.L. gun. Characteristic of the method is that the average thickness of the layer of the B.L. flow, immediately after the black liquor has left the B.L. gun, is controlled to have a desired magnitude. The thickness of the B.L. layer is obtained in the form of an indirect measure which is defined as the droplet index (=DIX) and is constituted by a relationship between the viscosity, the density and the feed rate of the black liquor and by at least the shape and the opening area, of the B.L. gun.