How to Turn Eggshells into Valuable Resources Using HGM Ultrafine Grinding Mills

CLIRIK Machinery's HGM ultrafine grinding mill is typically suitable for processing eggshell powder within a fineness range of 5 to 74 microns (200-2500 mesh).


The process of using HGM ultrafine grinding mills to turn eggshells into valuable resources involves the following steps:
 

1. Preliminary Treatment of Eggshells

• ►Cleaning: The collected eggshells need to be thoroughly cleaned to remove any remaining egg whites, yolks, and other impurities.
• ►Drying: After cleaning, the eggshells should be air-dried or dried using drying equipment to ensure they are completely dry inside and out, making them ready for further crushing.

 

2. Coarse Crushing of Eggshells

• ►Initial Crushing: Use coarse crushing equipment or a general crusher to crush the dried eggshells into larger particles. This step reduces the volume of the eggshells and facilitates the subsequent ultrafine grinding. Usually the size should be less than 20mm.

 

3. Ultrafine Grinding with HGM Mills

• ►Feeding: The coarsely crushed eggshell particles are fed into the HGM ultrafine grinding mill through a feeding device.
• ►Ultrafine Grinding: Inside the HGM mill, the eggshell particles are repeatedly ground and crushed between the grinding rollers and rings, ultimately achieving ultrafine particles at the micron or nanometer scale. The HGM mill uses a multi-layer grinding ring structure to efficiently grind the eggshells into ultrafine powder.
• ►Classification and Collection: The mill has a built-in classifier that separates the ultrafine powder meeting the standard, while the powder that does not meet the standard is further ground. The final qualified ultrafine eggshell powder is collected in a dedicated powder collection device.

4. Applications of Ultrafine Eggshell Powder

• ►Agricultural Use: Ultrafine eggshell powder can be used as an efficient calcium fertilizer, directly applied to the soil to increase calcium content and promote crop growth.
• ►Food Additives: After further processing and testing, the ultrafine eggshell powder can be used in the food industry as a calcium supplement added to various foods.
• ►Pharmaceutical Field: The ultrafine eggshell powder can also be used in pharmaceuticals as a calcium supplement or as a carrier for other drug ingredients.

 

5. Quality Control and Packaging

• ►Quality Testing: Before packaging, the ultrafine powder undergoes rigorous quality testing to ensure that its purity, particle size, and other indicators meet the requirements.
• ►Packaging and Storage: Depending on different application needs, the ultrafine powder is packaged into different specifications and stored and transported properly.

By using the HGM ultrafine grinding mill for efficient processing, eggshells can be transformed into high-value products, fully realizing the benefits of resource reuse and environmental protection.
 

How does it cost?

The cost of using an HGM ultrafine grinding mill to process eggshells can vary depending on several factors:
 

1. Equipment Costs

• • HGM Ultrafine Grinding Mill: The price of an HGM ultrafine grinding mill can range from $20,000 to $200,000 or more, depending on the model, capacity, and features.
• • Supporting Equipment: Additional costs might include feeders, classifiers, dust collectors, and packaging machines, which can add another $10,000 to $50,000.

2. Operational Costs

• • Energy Consumption: The power consumption of an HGM ultrafine mill varies depending on its capacity, typically ranging from 30 to 150 kWh. The cost of electricity will depend on local rates.
• • Maintenance: Regular maintenance, including wear parts replacement (such as grinding rollers and rings), can add to the operational costs. Maintenance costs can range from a few hundred to several thousand dollars annually.
• • Labor: Operating the mill requires skilled labor, and labor costs will vary based on local wages.

3. Raw Material Costs

• • Eggshell Collection: If you're sourcing eggshells from a third party (like food processing plants), there might be a cost associated with acquiring the raw material, though this may be minimal if you're recycling waste.
• • Pre-processing Costs: Cleaning, drying, and initial crushing of eggshells might involve additional labor and energy costs.

4. Processing Scale

• • Small-Scale Production: If you're processing a small volume of eggshells, the overall costs will be lower, but the cost per unit of processed material will be higher.
• • Large-Scale Production: Scaling up production can reduce the cost per unit, but initial capital investments will be higher.

5. Location and Logistics

• • Transportation Costs: Moving raw eggshells to the processing facility and transporting finished products to customers can also impact costs.
• • Regulatory Compliance: Depending on your location, there may be costs associated with meeting environmental regulations, waste disposal, and other legal requirements.

6. Product Value

• • Market Price of Processed Eggshell Powder: The revenue generated from selling ultrafine eggshell powder will depend on the market demand and pricing, which varies by application (e.g., agricultural, food, pharmaceutical).

 
Overall Estimate:
Considering all these factors, the initial setup costs can range from $50,000 to $300,000 or more, with ongoing operational costs that depend heavily on the scale of production. The profitability will depend on your ability to sell the processed eggshell powder at a price that covers these costs and provides a reasonable margin.