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E-mail
1863437@qq.com
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Phone
13777759681
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Address
No. 4, Lane 1, Zhangjiaqiao, Shacheng Bajia Industrial Zone, Wenzhou City, Zhejiang Province
Wenzhou Xiaojie Machinery Co., Ltd
Introduction to the working principle and characteristics of vertical grinding machine
Date: 2025-07-15Read: 10
1、 Working principle
1. Material entry and dispersion
The preprocessed material enters from the bottom of the grinding drum through the feeding pump and forms an annular material bed under the action of centrifugal force. The material is thrown towards the edge in the center of the grinding disc and thoroughly mixed with the grinding medium (such as steel balls, zirconium balls).
2. Grinding and crushing process
A high-speed rotating disperser or grinding roller drives the grinding medium to crush material particles through shearing, impact, and compression. The rolling between the grinding disc and the grinding roller generates strong mechanical force, achieving efficient crushing.
3. Grading and Collection
The crushed material is blown up by the hot air flow and separated by the top powder separator: coarse powder falls back to the grinding disc for re grinding (internal circulation), and fine powder enters the dust removal device with the air flow to collect as finished products. Simultaneously drying materials with hot air to reduce moisture content.
4. External loop processing
The coarse particles that have not been carried away by the airflow are discharged through the scraper plate and sent back to the feed inlet by the bucket elevator for further grinding (external circulation) to ensure no waste residue.
2、 Main features
1. Efficient and energy-saving
Adopting the principle of material bed grinding, the energy consumption is 30% -50% lower than traditional ball mills, and it integrates drying, grinding, and grading functions to reduce equipment redundancy.
2. Strong adaptability
Wide range of materials: can handle materials with a moisture content of 8% -15% (such as limestone, coal, petroleum coke), with a maximum feed particle size of 150mm.
Fineness is flexible and controllable: By adjusting the speed of the powder selection machine or the quality of the grinding medium, the finished particle size can reach 20-120 mesh, meeting different industrial needs.
3. Structural stability and easy maintenance
Modular design: Cone shaped grinding chamber and multi blade dispersing disc enhance grinding uniformity; Detachable grinding drum and dual mechanical seals simplify cleaning and maintenance.
Wear resistant components: The heavy-duty plate hammer is used on all sides, and the grinding roller lining plate is made of wear-resistant materials to extend its service life.
4. Environmental protection and safety
Closed operation with dust prevention measures, noise level below 75 decibels, and minimal dust spillage; The hydraulic spring system prevents material breakage vibration and ensures operational safety.
