Cold Pressing of Ore Powder with Pellet Binder

Pellet binders are used in the cold pressing process of mineral powder to compress the powder into pellets, facilitating transportation, storage, and subsequent smelting operations.
The cold-pressed pellet technology for mineral powder is a method of compressing mineral powder into spherical shapes under high pressure, primarily used in the metallurgical industry to increase the density of the powder and ease smelting. Below are some detailed insights about cold-pressed mineral powder pellets:
Preparation Process
- Raw Material Preparation: Mix the mineral powder uniformly with an appropriate amount of binder.
- Pressing: Use a high-pressure briquetting machine to compress the mixed material into spherical shapes.
- Drying: Dry the freshly pressed green pellets to remove moisture.
- Calcination: Depending on requirements, subject the dried pellets to low or high-temperature calcination to enhance their strength and performance.
Binder Usage
- The selection of binders is crucial for the strength and quality of cold-pressed pellets. Common binders include magnesium-containing binders and iron ore powder pellet binders.
- The amount of binder added is generally around 5% of the mineral powder weight, with the specific ratio determined based on experimental results.
Equipment
- Mineral Powder Briquetting Machine: A key piece of equipment for producing cold-pressed mineral powder pellets, primarily used to compress the powder into spherical shapes.
- Feeding Structure: For example, the patented technology by Henan Jianjie Industrial Co., Ltd., allows for adjusting the conveyor belt slope to accommodate different installation heights, improving production efficiency.
Advantages
- Resource Utilization: Enhances the utilization efficiency of mineral powder and reduces resource waste.
- Environmental Benefits: The production process of cold-pressed pellets is relatively eco-friendly, aligning with modern industrial environmental requirements.
- Economic Benefits: By increasing the density and strength of mineral powder, it improves the smelting process and enhances economic efficiency.
Cold-pressed mineral powder pellet technology holds significant application value in the metallurgical industry. Through appropriate binder selection and advanced equipment, it can markedly improve the utilization efficiency of mineral powder and the effectiveness of smelting.