In order to prevent production accidents such as furnace spraying and explosion in the production process of calcium carbide enterprises, our workshop organized relevant experts to formulate “30 preventive measures for calcium carbide furnace production technology” according to the production process of calcium carbide furnace, the danger of equipment, raw materials, auxiliary materials, products and the characteristics of production and operation posts, and asked all production directors, team leaders and heads of all sections to strictly comply with them.
Strictly control the indicators of raw materials;
It is very important to control the raw materials to prevent the boiler spraying accident. All enterprises should control the indicators of raw materials from the source, carefully inspect and test, and resolutely refuse to put the raw materials that do not meet the following indicators into the furnace.
Preventive measures for electrode paste production
If the semi closed calcium carbide furnace adopts the automatic feeding system, the moisture content in the carbon material is ≤ 5%, if the manual feeding is adopted, the moisture content in the carbon material is ≤ 8%, and the moisture content in the carbon material of the closed calcium carbide furnace is ≤ 2%.
2. Selection of electrode paste
Calcium carbide production enterprises should ensure that the quality of electrode paste is qualified. Before using, they should check the test sheet of electrode paste and use it only after it is qualified Products produced by electrode paste enterprises with a certain scale should be selected The particle size of electrode paste is ≤ 100 mm. It is strictly forbidden to add the whole electrode paste directly into the electrode barrel In the season changing stage, the softening point, volatile matter and other indicators of electrode paste should be adjusted in time.
3. Content of magnesium oxide in lime
The content of magnesium oxide in lime should be controlled as much as possible, especially in closed furnace, which should be less than 1.6%.
4. Content of powder in lime
The content of powder in lime should be strictly controlled. The lime with high content of powder should be screened before feeding. The content of powder in lime should be controlled below 3%.
Strengthen equipment * management
In the production process, the function failure of equipment and facilities, unreasonable design and installation, and improper operation are all the direct causes of accidents.