Sulfur removing composition for civil coal

Abstract

The present invention discloses a kind of sulfur removing composition for civil coal. The sulfur removing composition consists of calcium oxide 50-90 weight portions, potassium iodate 1-4 weight portions, sodium chloride 7-13 weight portions, ferrous sulfate 3-7 weight portions and rice straw ash 8-15 weight portions. The calcium oxide is set in ventilating and dry area for over 20 days before use. The sulfur removing composition can eliminate sulfide produced during burning civil coal effectively, and has bad smell, no toxic side effect, low cost and other advantages.

Description

technical field [0001] The invention relates to a purifying substance or additive for eliminating sulfide in civil (burning) coal, specifically a civil coal sulfur removal composition. Background technique [0002] At present, it is still very common in urban and rural areas of my country to use civil coal for cooking, especially for warming up in winter. But as the saying goes, there is no coal without sulfur. Because coal contains sulfur, sulfur dioxide and other sulfides produced during the combustion of civilian coal bring great harm to people's health and life: 1. The civilian coal in the coal furnace is The sulfides such as sulfur dioxide produced during combustion emit a pungent unpleasant smell (odor), which makes it unbearable for people who cook and reunite to enjoy the fire, especially the elderly and infirm who have been in the kitchen for a long time. Cause symptoms such as people's keratitis, tearing, coughing, even cause nausea, vomiting, dizziness etc. when ...

AI Technical Summary

Problems solved by technology

But as the saying goes, there is no coal without sulfur. Because coal contains sulfur, sulfur dioxide and other sulfides produced during the combustion of civilian coal bring great harm to people's health and life: 1. The civilian coal in the coal furnace is The sulfides such as sulfur dioxide produced during combustion emit a pungent unpleasant smell (odor), which makes it unbearable for people who cook and reunite to enjoy the fire, especially the elderly and infirm who have been in the kitchen for a long time. Cause symptoms such as keratitis, tearing, and coughing, and even nausea, vomiting, and dizziness in severe cases. If things go on like this, it will cause great harm to people's bodies

2. The sulfide produced during the combustion of civilian coal has a great corrosive and destructive effect on cooking. All iron pots, aluminum pots, stainless steel pots, etc. used on coal stoves are prone to delamination and bottom wear. Lifespan is greatly affected

3. The sulfides produced during the burning of civilian coal also cause great erosion and damage to interior decoration furniture, such as yellowing of walls, discoloration of furniture, and blackening of decorative panels, etc.

4. When the existing civilian coal is prepared and stored for burning, it also emits an unpleasant smell

5. The existing civilian coal generally cannot make the coal block such as lotus root coal completely burnt and burnt through, but leaves a small amount of residual coal

[0003] And as far as the applicant knows, there is no report on the civil coal sulfur removal composition that can really effectively eliminate the sulfide in the combustion of civil coal at home and abroad.

For example, someone once proposed an energy-saving and fuel-reducing additive with 2% to 5% of potassium permanganate, 80% to 90% of sodium chloride, and 3% to 10% of sodium carbonate, but its desulfurization effect is very small in practice. , and the cost is more expensive (about 4 yuan per kilogram)