Calcium Hydroxide Production Line Process: process steps from raw materials to packaging

A calcium hydroxide production line is a specialized production line for producing calcium hydroxide products. Its production process primarily involves the following steps:

1. Raw Material Preparation

The raw materials required for calcium hydroxide production are primarily limestone, coal, and calcium carbonate. Limestone is the primary raw material, and its quality significantly impacts the quality and yield of the final product. Therefore, when selecting raw materials, it is important to choose limestone with low impurities, high purity, and a high calcium carbonate content. The raw material quantities and ratios must also be determined based on the production scale and process requirements.

2. Crushing and Grinding

Crushing is the process of breaking large limestone lumps into smaller pieces for subsequent grinding. Grinding is the process of further pulverizing the crushed limestone into a fine powder for chemical reactions. During the crushing and grinding processes, it is important to select appropriate crushers and mills, and to control the particle size and shape of the crushed and ground materials to ensure smooth subsequent reactions.

3. Digestion and Desulfurization

Digestion is the process of converting the calcium carbonate in the limestone into calcium hydroxide, typically performed in a digester. During the digestion process, parameters such as temperature, pressure, and time must be carefully controlled to ensure the complete digestion reaction. Desulfurization removes impurities such as sulfides from the raw materials to ensure the purity and quality of the final product. There are various desulfurization methods, and the appropriate method can be selected based on the specific situation.

4. Dehydration and Drying

Dehydration involves removing water from the digested calcium hydroxide slurry to produce solid calcium hydroxide. Drying involves drying the dehydrated calcium hydroxide to remove moisture and volatile matter. There are various dehydration and drying methods, and the appropriate method can be selected.

5. Screening and Packaging

Sieving involves screening the dried calcium hydroxide to obtain products of varying particle sizes. Packaging involves packaging the screened calcium hydroxide for easy transportation and distribution. During the packaging process, the quality of the packaging materials and the package weight must be carefully controlled to ensure product quality and meet customer needs.

The above is the main production process flow of a calcium hydroxide production line. Each step has its own specific functions and requirements. In actual production, operations and controls must be tailored to the specific situation and process requirements to ensure the quality and yield of the final product. Furthermore, equipment maintenance and management must be strengthened to ensure proper operation and longevity.