The roller skin of the briquetting machine is the core component responsible for compressing powdery or granular materials into pellets or blocks. Its material and performance directly affect the equipment's service life and production efficiency, and it is widely used in metallurgy, energy, chemical, and other industries.
Classification of Briquetting Machine Roller Skins
1. Classification by material:
- 65 manganese material: low cost, suitable for small coal powder briquetting machines.
- 9Cr2Mo material: good wear resistance, suitable for medium and large-sized coal briquetting machines.
- High chromium alloy material: strong wear resistance, suitable for high-output medium and large briquetting machines.
- Bearing steel material: specially used for briquetting machines processing hard materials such as fluorite powder, with a service life extended by more than 30%.
2. Classification by assembly method:
- Integrated type: roller skin and roller core are manufactured as a whole, with a stable structure.
- Modular type: roller skin is replaceable, facilitating maintenance.
3. Classification by pressure:
- High-pressure roller: suitable for high-density materials such as metal ore powder, dry pressing (without binder), with higher pressure ranging from 9t/m³ to 20t/m³.
- Medium-pressure roller: suitable for general materials such as coal powder and coke powder, wet pressing (with binder), with lower pressure ranging from 3t/m³ to 6t/m³.
Key Features
- Wear protection: protects the roller core from wear, extending equipment life.
- Forming function: ensures consistent pellet shape through die design.
- Pressure adjustment: optimizes pressure distribution to improve forming density.
Scope of Application
1. Coal Industry
- Coal briquette production: used to compress coal powder into coal briquettes, improving combustion efficiency and reducing environmental pollution.
- Coal chemical industry: during coal-to-oil and coal-to-gas processes, compresses coal powder into briquettes for easier transportation and processing.
2. Mining Field
- Metal ore powder briquetting: such as iron ore powder, copper ore powder, compressed into pellet ores for easier smelting and transportation.
- Non-metallic ore powder briquetting: such as fluorite powder, gypsum powder, compressed to improve added value and utilization efficiency.
3. Building Materials Industry
- Refractory material briquetting: such as high-alumina powder, clay powder, compressed into refractory bricks or refractory balls for kiln construction.
Process Introduction
1. Material selection: choose wear-resistant materials such as 65Mn, 9Cr2Mo, or high chromium alloy according to material characteristics.
2. Processing flow:
- Blank making: casting or forging to ensure material density.
- Turning: precision machining to dimensional tolerance range.
- Engraving ball cavities: design cavity shape and size based on material characteristics.
- Heat treatment: quenching, tempering, and other processes to improve hardness and wear resistance.
3. Quality inspection: check hardness, dimensional accuracy, and surface roughness to ensure compliance with standards.
Keywords
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Roller skin of ball press machine
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