IP Library Granted Patent US 8,714,105
Granted Patent B2
US 8,714,105 · App. 13/088,109 · Granted May 6, 2014

Process for application of alcoholic derivative on heat treated pellets for inhibition of particulate emission and system for application of alcoholic derivative on heat treated pellets for inhibition of particulate emission

Inventors: Jose Antonio Alves E. Silva Reis (Vitoria, BR); Leonidio Stegmiller (Vitoria, BR); Aldo Gamberini (Vitoria, BR)
Assignee: Vale S.A.
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Quick Facts
Patent No.
US 8,714,105
App. No.
13/088,109
Granted
May 6, 2014
Kind
B2
Abstract

A process for application of alcoholic derivative on heat treated pellets for inhibition of particulate emission is provided, and the process includes weighing the amount of heat treated pellets discharged from furnaces, measuring the temperature of the heat treated pellets discharged from furnaces, applying cooling fluid on the heat treated pellets until they reach temperatures below 140° C., and spraying the alcoholic derivative on the heat treated pellets. Also provided is a first device for applying cooling fluid that is capable of calculating a dosage of cooling fluid to be applied to the heat treated pellets, a second device for applying alcoholic derivative that is capable of calculating a dosage of alcoholic derivative to be applied to the heat treated pellets already cooled, and a carrier device that continuously communicates with the first device for applying cooling fluid and with the second device for applying alcoholic derivative.

Claims (9)

1. A system of application of an alcoholic derivative on heat treated pellets for inhibition of particulate emission comprising:

a first device for applying cooling fluid, the first device being configured to calculate, via a programmable logic controller (PLC), a dosage of the cooling fluid to be applied to the heat treated pellets, wherein the first device comprises a scale, a temperature gauge, and a cooling fluid feeder associated with the PLC;

a second device for applying the alcoholic derivative, the second device being configured to calculate, via the PLC, a dosage of the alcoholic derivative to be applied to the heat treated pellets already cooled, wherein the second device comprises a scale and pump feeder associated with the PLC; and

a carrier device that continuously communicates with the first device and with the second device.

2. The system according to claim 1 , wherein the carrier device comprises a conveyor belt interconnecting the first device to the second device.

3. The system according to claim 1 , further comprising aerated percolation equipment for application of cooling fluid and application of alcoholic derivative on the heat treated pellets.

4. The system of claim 1 , wherein:

the cooling fluid is applied on the heat treated pellets by the first device until the heat treated pellets reach a temperature below 140° C.; and

100 g to 1000 g of the alcoholic derivative is applied per ton of heat treated pellet by the second device.

Assignments (2)
CHANGE OF ADDRESS Recorded Sep 13, 2017
From: VALE S.A.
To: VALE S.A.
Reel/Frame 043849/0613 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 2, 2011
From: REIS, JOSE ANTONIO ALVES E. SILVA; STEGMILLER, LEONIDIO; GAMBERINI, ALDO
To: VALE S.A.
Reel/Frame 027318/0177 →
Continuity (2)
Provisional Application 61324880 · Apr 16, 2010
Related Publication 20120247733A1 · Oct 4, 2012