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GB/T 46669-2025Grain and oils storage - Technical specification for grain breakage reduction in silo loading (English PDF)

粮油储藏　筒仓进料降碎技术规范

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

October 31, 2025

Implementation date

May 1, 2026

Scope

GB/T 46669-2025 is the English-translated version of 粮油储藏　筒仓进料降碎技术规范.

GB/T 46669-2025 is the Chinese standard "Grain and oils storage - Technical specification for grain breakage reduction in silo loading".

Its scope clause reads: This document specifies the general technical requirements for silo feeding and crushing, the silo feeding process requirements, the crushing device requirements, and the requirements for silo feeding process equipment.

The requirements for construction quality are specified, and the corresponding test methods are described. This document applies to vertical silos, shallow circular silos, and their facilities, equipment, feeding processes, and feeding operations that require measures to reduce grain breakage. Its clauses include terms and definitions.

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Document preview — GB/T 46669-2025

National Standard of the People's Republic of China

ICS: 65.060.01
Classification: B 20

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

Foreword
1 Scope
2 Normative references

1 Scope

This document specifies the general technical requirements for silo feeding and crushing, the silo feeding process requirements, the crushing device requirements, and the requirements for silo feeding process equipment.

The requirements for construction quality are specified, and the corresponding test methods are described.

This document applies to vertical silos, shallow circular silos, and their facilities, equipment, feeding processes, and feeding operations that require measures to reduce grain breakage.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.

For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.

This document.

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GB/T 24857 General Technical Conditions for Plate Parts and Plate-Shaped Steel Components of Grain and Oil Machinery

GB/T 25218 General Technical Requirements for Coating of Grain and Oil Machinery Products

GB/T 37519 Bucket Elevator for Grain and Oil Machinery

GB/T 50046 Standard for Corrosion Protection Design of Industrial Buildings

GB 50077 Design Standard for Reinforced Concrete Silos

GB 50204 Code for Acceptance of Construction Quality of Concrete Structures

GB 50205 Standard for Acceptance of Construction Quality of Steel Structures

GB 50231 General Specification for Construction and Acceptance of Mechanical Equipment Installation Engineering

GB 50270 Construction and Acceptance Specification for Installation Engineering of Conveying Equipment

GB 50322 Code for Design of Steel Grain Silos

GB 50669 Code for Construction and Quality Acceptance of Reinforced Concrete Silos

GB/T 51239 Code for Construction and Quality Acceptance of Steel Grain Silos

GB 55001 General Specification for Engineering Structures

GB 55006 General Specification for Steel Structures

JB/T 7854 Air Cushion Belt Conveyor

LS/T 3501.6 General Technical Requirements for Welded Components of Grain and Oil Processing Machinery

LS/T 3515 Grain Belt Conveyor

LS8001 Grain Vertical Silo Design Specification

LS/T 8014 Standard for the Construction of High-Standard Grain Warehouses

3 Terms and Definitions

The following terms and definitions apply to this document. […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 17 pages — is available in the English PDF.

Referenced standards

Normative references

Editions of GB/T 46669

Edition	Title	Revision	Status
GB/T 46669-2025	Grain and oils storage - Technical specification for grain breakage reduction in silo loading	current edition	Current

This page sells the current edition, GB/T 46669-2025. Earlier editions are listed for reference only.

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