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GB/T 44970-2024Grain and oil machinery - Air cushion belt conveyor (English PDF)

粮油机械 气垫带式输送机

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

November 28, 2024

Implementation date

June 1, 2025

Scope

GB/T 44970-2024 is the English-translated version of 粮油机械 气垫带式输送机.

GB/T 44970-2024 is the Chinese standard for air cushion belt conveyors in grain and oil plant.

In an air cushion conveyor the belt runs on a film of air in a shaped trough instead of on idler rollers, which removes the rotating parts that dust, chaff and grain fines destroy, cuts the noise and the running resistance, and prevents the belt sag that damages grain, all of which matter in a facility where dust is also an explosion hazard.

The standard sets the working principle, the categories, the model designation and basic parameters, and then the technical requirements: the trough and the air chamber, the fan and the air supply, the belt and its tracking, the drive and take-up, the loading and discharge, the sealing and dust control, the safety devices including the belt drift, slip and blockage protection, and the noise, power consumption and conveying capacity.

It then gives the test methods, the inspection rules and the marking, packaging, transport and storage. It takes effect on 1 June 2025.

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Document preview — GB/T 44970-2024

National Standard of the People's Republic of China

ICS
67.260
Classification
X91

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Contents

  • ForewordIII
  • 1 Scope1
  • 2 Normative references1
  • 3 Terms and Definitions2
  • 4 Working Principle2
  • 5 Categories3
  • 6 Models and basic parameters3
  • 7 Technical Requirements3
  • 8 Test methods6
  • 9 Inspection Rules9
  • 10 Marking, packaging, transportation and storage11
  • Appendix A (Normative) Model compilation method12

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting.

Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.

This document was proposed by the State Administration of Grain and Material Reserves.

This document is under the jurisdiction of the National Technical Committee on Cereals and Oils Standardization (SAC/TC270).

This document was drafted by: Zhengzhou COFCO Research and Design Institute Co., Ltd., Jiangsu Fuchang Machinery Equipment Co., Ltd., Jiangmen Nanfang Conveyor

Machinery Engineering Co., Ltd., Jiangsu Fengshang Steel Silo Engineering Co., Ltd., Henan Tianlong Transportation Equipment Co., Ltd., Jiangsu Guoliang Storage Engineering Co., Ltd.

Company, COFCO Engineering Maosheng Equipment (Henan) Co., Ltd., and Central Grain Reserve Panjin Direct Depot Co., Ltd.

The main drafters of this document are: Li Junwu, Gao Lan, Zhang Junling, Hu Fangfang, Qu Xiaohui, Ren Shouhua, Tang Xuejun, Guo Shanhui, Li Kunyou,

Qian Hangsong, Chen Hongbin, Huang Xiayun, Xin Shuojun, Xu Liang, Guo Jinxing, Qian Qingfeng, Jing Haiwei, Zhu Yaoqiang, Yang Wenli, Chen Xu, Wang Peiqi, Wang Zhun,

Zheng Weixin and Zhang Peipei.

Grain and oil machinery air cushion belt conveyor

1 Scope

This document specifies the working principle, classification, model and basic parameters, technical requirements, inspection rules, marking, packaging, transportation and other aspects of the air cushion conveyor.

The transport and storage requirements are described and the corresponding test methods are described.

This document applies to fixed-arrangement air cushion belt conveyors for continuous conveying of food materials.

2 Normative references

The contents of the following documents constitute essential clauses of this document through normative references in this document.

For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to this document.

GB/T 191 Pictorial markings for packaging, storage and transportation

GB/T 1184-1996 Shape and position tolerances without tolerance values

GB 2894 Safety signs and their use guidelines

GB/T 3768 Acoustics Sound Pressure Method for Determination of Sound Power Level and Sound Energy Level of Noise Source Using a Simple Measurement Surface Enveloped Above the Reflecting Surface Easy Method

GB/T 4490 Fabric core conveyor belt width and length

GB/T 5226.1 Electrical safety of machinery Electrical equipment of machinery Part 1: General technical requirements

GB/T 5491 Sampling and subsampling methods for grain and oilseed inspection

GB/T 5494 Inspection of grains and oils Inspection of impurities and imperfect grains in grains and oils

GB/T 7983 Test method for transverse flexibility (grooving) of conveyor belts

GB/T 7984 General purpose fabric core conveyor belts

GB/T 8874 General terminology of grain and oil technology and equipment

GB/T 9286-2021 Paint and varnish cross-cut test

GB/T 10595 Belt conveyor GB/T 13306 Labels

GB/T 13452.2 Determination of film thickness of paints and varnishes

GB 14784 Safety Specification for Belt Conveyors

GB 17440 Safety regulations for dust explosion prevention in grain processing, storage and transportation systems

Remaining clauses in the full document

  • 3 Terms and Definitions
  • 4 Working Principle
  • 5 Categories
  • 6 Models and basic parameters
  • 7 Technical Requirements
  • 8 Test methods
  • 9 Inspection Rules
  • 10 Marking, packaging, transportation and storage

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

Normative references

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