Overview
Sodium chloride granulation machines are specialized equipment used to transform powdered or crystalline salt into uniform granules. These machines are critical in industries requiring consistent salt particle size, such as food production, pharmaceuticals, and water softening. Granulation improves product flowability, reduces waste, and minimizes dust during handling. The process typically involves compression, extrusion, or rotary drum methods, depending on the desired granule characteristics. Modern machines integrate automation for precise control over granule density, size, and moisture content, ensuring compliance with industry standards.
Structure and Working Principle
A standard sodium chloride granulation machine consists of a feeding system, mixing unit, granulation chamber, drying module, and sieving mechanism. The feeding system delivers raw salt to the mixer, where binders or additives may be introduced. The granulation chamber employs rollers, dies, or rotating discs to form granules under controlled pressure. For wet granulation, the machine may include a spray system for liquid binders, followed by a dryer to reduce moisture. Dry granulation relies on compaction without added liquids. The final granules are sieved to ensure uniformity, with oversized or undersized particles recycled into the process.
Key Features
High-efficiency granulation machines offer adjustable parameters such as roller pressure, rotor speed, and die size to produce granules ranging from 0.5 mm to 5 mm. Corrosion-resistant materials like stainless steel are essential due to salt's hygroscopic and corrosive nature. Advanced models feature PLC controls for real-time monitoring of temperature, pressure, and output quality. Energy-saving designs, such as heat recovery systems in dryers, are increasingly common. Some machines also integrate dust collection systems to maintain a clean working environment.
Application Areas
The primary use of sodium chloride granulators is in the food industry, where table salt and seasoning blends require uniform granules for even distribution. In water treatment, granulated salt is used in brine tanks for ion-exchange systems. The chemical industry employs these granules as raw material for chlorine and soda ash production. Other applications include animal feed supplements, de-icing products, and pharmaceutical excipients. Granulated salt's improved solubility and reduced caking make it preferable to powdered forms in many industrial processes.
Maintenance and Precautions
Regular maintenance is crucial to prevent salt buildup, which can corrode components or block machinery. Daily cleaning with fresh water and periodic lubrication of bearings and gears are recommended. Inspect seals and gaskets for wear, as salt can accelerate deterioration. Operators should monitor for unusual vibrations or noise, which may indicate misalignment or mechanical stress. For machines with drying functions, ensure proper ventilation to avoid moisture accumulation. Always follow the manufacturer's guidelines for shutdown procedures to prevent residue hardening.
B2B Procurement Guide
When sourcing a sodium chloride granulation machine, prioritize suppliers with experience in salt-processing equipment. Key considerations include production capacity (e.g., 1–10 tons/hour), granule size flexibility, and compliance with food-grade (e.g., FDA) or industrial standards. Request material certificates for stainless steel parts and verify the machine's energy efficiency. After-sales support, including spare parts availability and technician training, is critical. For reference, mid-range machines with 5-ton/hour capacity typically cost $20,000–$35,000. Customized solutions, such as integrated packaging lines, may command higher prices.
Related Manufacturers
- 主营：工业盐造粒机、压球机
- 主营：干燥机、烘干设备、污泥烘干机、氯化钠烘干设备、冲剂制粒机、滚筒干燥设备、污泥干燥设备、热风循环烘箱、真空干燥设备、气流干燥设备、喷雾干燥设备、沸腾干燥设备、中药材干燥设备