GB/T 24352-2020 in English
VALIDGraphical symbols for feed processing equipment
- Issued on:2020-11-19
- Implemented on:2021-06-01
- File Format:PDF
- Delivery:Via email within 5 business days
$418.00
《GB/T 24352-2020饲料加工设备图形符号》由TC384（全国饲料机械标准化技术委员会）归口，主管部门为中国机械工业联合会。
Introduction
Standard Evolution and Technological Innovation
GB/T24352-2020 is a comprehensive upgrade of the 2009 version of the standard, mainly reflecting three major technological breakthroughs: symbol system reconstruction (65 new symbols/43 deleted symbols), drawing principle refinement (clarifying the applicable scenarios of principle-type and characteristic-type symbols), process expression standardization (adding a material line cross-equipment representation method). The standard revision took three years and responded to the development needs of intelligent and modular feed processing equipment.
Core content analysis
1. Symbol classification system
| Category | Number of symbols | Typical equipment | Drawing requirements |
|---|---|---|---|
| General equipment | 128 | Bucket elevator, Screw conveyor | Principle symbols must be used |
| Special equipment | 83 | Ring die granulator, Micro pulverizer | Allow characteristic shape symbols |
2. Key drawing specifications
- Material flow line: uniformly use thick solid lines (width ≥ 0.7mm)
- Cross processing: "+" indicates spatial separation, "●" indicates actual connection
- Proportional control: The symbol size must be proportional to the actual size of the equipment
Comparison between the old and new standards
Typical case: The symbol of the double-shaft paddle mixer was adjusted from the simple lines of the 2009 version to the three-dimensional expression of the 2020 version, which more accurately reflects the structural characteristics of the equipment. The newly added vacuum sprayer symbol (VC logo) adapts to the popularization trend of feed post-spraying process.
| Technical indicators | 2009 edition | 2020 edition | Change rate |
|---|---|---|---|
| Total number of symbols | 156 | 211 | +35.3% |
| Principle symbol | 89 | 137 | +53.9% |
| Special equipment classification | None | 8 major categories | Newly added |
Implementation suggestions
- Process design stage: Give priority to the new version of principle symbols to ensure compatibility with the automation control system
- Technical training focus: Master the material line cross-equipment marking method (Article 4.5) and special connection symbols
- Transition period processing: Symbol replacement of existing drawings should be completed before the end of 2023
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