System for the dosing of additives/inhibitors containing magnesium oxide applied to fuels used for the production process of clinker/cement in rotary furnaces and steam generating boilers

Abstract

This invention refers to a system that is automated and controlled through a software; for the storage and application of additives and / or sulfur inhibitors containing magnesium oxide and their accurate dosing in solid or liquid fossil and alternate fuels, preferably used in rotary furnaces for the production of Clinker / cement and in steam generating boilers. Additionally, this invention is characterized for having the power to increase the use of fossil and alternate fuels without altering the characteristics of cements or concretes as the final product of cement.

Description

FIELD OF THE INVENTION[0001]This invention is located in the field of cement production, specifically this invention refers to a system that is automated and controlled by means of a software, for the storage and application of additives and / or sulfur inhibitors containing magnesium oxide and their accurate dosing in solid or liquid fossil and alternate fuels, preferably used in Clinker / cement production furnaces and in steam generating boilers.BACKGROUND OF THE INVENTION[0002]The world trend in the cement industry goes towards the use of alternate fuels that are increasingly polluted with sulfur, aluminum, silicon and vanadium impurities, mainly with the purpose to reduce the manufacturing costs of Clinker / cement and in the steam generating boilers with little success. The foregoing arises from the instability of operations, loss of production and damage caused to equipments by corrosion.[0003]In the last few years, the largest companies that manufacture cement and generate electri...

AI Technical Summary

Benefits of technology

[0009]An additional advantage of the invention is to provide a system that considerably supports world ecology by diminishing harmful emissions to the environment, since rotary furnaces for the production of Clinker / cement may be considered to be great reactors that owing to their design, any type of alternate fuels such as tires, petrochemical residues and oil drill sludge, organic debris, solvents, plastics, etc. may be burnt / consumed to obtain calorific power

[0010]In the same vein, it is known in the prior art that when an obstruction / scale / ring occurs in the system, it is necessary to resort to the cleaning of the affected area with high-pressure water pumps, these pumps cause a strong thermal shock that may produce avalanches of hot stuff; if high security measures are not taken, a human life can be lost. In this way, the system of this invention succeeds in reducing possible labor accidents caused by non scheduled stops to repair the cement line production and steam generating boilers, and also eliminates the need of an additional cleaning system.BRIEF DESCRIPTION OF THE FIGURES OF THE INVENTION

[0011]FIG. 1A shows a general scheme of the system according to this invention applied to solid fuels. FIG. 1B shows a general scheme of the system according to this invention applied to liquid fuels.

[0012]FIG. 2 refers to the image of a solid fuel conveyor belt where the dosing of the additive containing magnesium oxide is carried out.

[0013]FIG. 3 shows a graphic where the positive effect of the additivation system is observed together with the additive containing magnesium oxide, according to this invention.

[0014]FIG. 4 refers to a graphic that shows the improvement in the production of a cement rotary furnace treated with the system subject matter of this invention.

Problems solved by technology

The world trend in the cement industry goes towards the use of alternate fuels that are increasingly polluted with sulfur, aluminum, silicon and vanadium impurities, mainly with the purpose to reduce the manufacturing costs of Clinker / cement and in the steam generating boilers with little success.

The foregoing arises from the instability of operations, loss of production and damage caused to equipments by corrosion.

In the last few years, the largest companies that manufacture cement and generate electric power nationwide have focused on developing mechanical systems to solve a chemical problem; nevertheless, they have not been successful because they have preferred to look for other solutions rather than handling dosed additives in fossil, alternate and liquid fuels, that will solve problems arising out of harmful components in fuels.

There are additives on the market that cannot be successfully used due to their difficult handling and preservation in storage tanks; furthermore, their dosing also becomes complex, which reduces their effectiveness with time.

Images