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GB/T 31561-2025 English PDF

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GB/T 31561-2025: Clay bonded sand reclaiming complete equipment - Technical specifications

GB/T 31561: Evolution and historical versions

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
GB/T 31561-2025	English	359	Add to Cart	4 days [Need to translate]	Clay bonded sand reclaiming complete equipment - Technical specifications		GB/T 31561-2025
GB/T 31561-2015	English	209	Add to Cart	3 days [Need to translate]	Used green sand reclamation equipment -- Technical requirements	Valid	GB/T 31561-2015

Basic data

Standard ID	GB/T 31561-2025 (GB/T31561-2025)
Description (Translated English)	Clay bonded sand reclaiming complete equipment - Technical specifications
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	J61
Classification of International Standard	25.120.30
Word Count Estimation	18,189
Date of Issue	2025-10-31
Date of Implementation	2026-05-01
Older Standard (superseded by this standard)	GB/T 31561-2015
Issuing agency(ies)	State Administration for Market Regulation and Standardization Administration of China

GB/T 31561-2025: Clay bonded sand reclaiming complete equipment - Technical specifications

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
National Standards of the People's Republic of China ICS 25.120.30CCS J 61 Technical Specifications for Clay Sand Regeneration Equipment Released on October 31, 2025 Implemented on 2026-05-01 State Administration for Market Regulation The State Administration for Standardization issued a statement. Replaces GB/T 31561-2015

Preface III Introduction V 1.Scope 1 2 Normative References 1 3.Terms and Definitions 2 4.Technical Requirements 3 5.Test Methods 7. 6 Inspection Rules 8 7.Marking, Packaging, Transport and Storage 9. Appendix A (Informative) Clay Sand Regeneration Process Flow and Main Equipment 10 Reference 11 Figure A.1 Typical clay sand recycling process flow chart 10

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents". Drafting. This document replaces GB/T 31561-2015 "Technical Conditions for Clay Sand Regeneration Equipment". Compared with GB/T 31561-2015, Apart from structural adjustments and editorial changes, the main technical changes are as follows. a) The provisions concerning hydraulic systems have been deleted (see 4.1.8 of the.2015 edition); b) Change the description of "heating equipment" to "roasting furnace" and add relevant provisions regarding the detailed structure and piping of the roasting furnace (see...). 4.4 (4.3 in the.2015 edition). c) Change the term "recycling machine" to "friction regeneration equipment" and delete the provisions concerning film removal rate and reuse rate (see 4.6,.2015). Version 4.4); d) The provisions concerning dust removal systems are deleted (see 4.12 of the.2015 edition); e) Separate "idle operation" and "load operation" into separate categories and provide detailed regulations for each (see 4.14, 4.15,.2015 edition 4.14). f) Incorporate the requirements for operating time into the “Test Methods” (see 5.3, 4.14.1 and 4.14.2 in the.2015 edition). g) The provisions concerning gas emissions are deleted (see 4.14.20 of the.2015 edition); h) The descriptions of the provisions and test methods concerning the peeling rate are deleted (see 4.4.1 and 5.5 in the.2015 edition). i) Added relevant provisions for compound pendulum jaw crushers and vertical compound crushers (see 4.2.1, 4.2.2, 4.2.3, 4.2.4). j) Added relevant provisions for suspended electromagnetic separators and permanent magnet drum separators (see 4.3.2 and 4.3.3). k) Added relevant provisions regarding the cooling water pipes and air distribution plates of the boiling cooling bed (see 4.5.2, 4.5.3); l) The requirements for pipeline pressure resistance are incorporated into Chapter 5, "Test Methods" (see 5.6, 4.6.1 of the.2015 edition); m) Added regulations for wind sorting equipment (see 4.7); (n) Added regulations concerning pressure monitoring, alarms, and explosion venting related to the roasting furnace and gas (see 4.13.3, 4.13.4, etc.). 4.13.5). o) Change the response rate of recycled sand under load from 90% to 80% (see 4.15.9, 4.14.14 in the.2015 edition). p) Added dimensional measurement methods, installation accuracy testing methods, no-load operation test methods, load operation test methods, and pressure resistance test methods. Descriptions of the methods for measuring bearing temperature (see 5.1, 5.2, 5.3, 5.5, 5.6, 5.7); q) Change the original "regenerated sand temperature measurement" to "outlet sand temperature measurement", and change the measurement and sampling point from the sand hopper inlet to the boiling cooling process. Bed exit (see 5.8, 5.6 in the.2015 edition); r) The test method for the production capacity of complete sets of equipment has been changed (see 5.9, 5.3 in the.2015 edition). s) The method for determining the recycling rate of recycled sand has been changed (see 5.12, 5.7 in the.2015 edition). Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents. This document is under the jurisdiction of the National Technical Committee on Standardization of Foundry Machinery (SAC/TC 186). This document was drafted by. China Automotive Engineering Corporation, Baoding Weier Foundry Machinery Co., Ltd., and Nan'an Zhongji Standards. Chemical Research Institute Co., Ltd., Guangxi Lanke Resource Recycling Co., Ltd., Guokexin (Xiamen) Enterprise Management Consulting Co., Ltd., Jinan Casting and Forging Inspection and Testing Technology Co., Ltd., Qingdao Antai Heavy Industry Machinery Co., Ltd., Fujian Minxuan Technology Co., Ltd., Jinan No.2 Machine Tool Group Group Co., Ltd., Qingdao Zhongzhida Environmental Smelting Equipment Co., Ltd., Qingdao Qingli Environmental Protection Equipment Co., Ltd., Qingdao Kaijie Heavy Industry Machinery Co., Ltd. The company, Qingdao Beno Magnetic & Electric Technology Co., Ltd., Weihai Gongyou Foundry Machinery Co., Ltd., and Shandong Jiechuang Machinery Co., Ltd. The main drafters of this document are. Cao Hongfan, Mu Xiangdong, Liu Xiaolong, Ke Zhenzhen, Liu Linqi, Que Caiping, Chen Jian, Wang Hua, Wang Qingfeng, and Zhu Bin. Wang Shoushuai, Duan Jinting, Zhao Zhikun, Su Liguo, Li Haichun, Li Zhihong, Duan Yudong, Zhao Peng, Zhang Lei, Li Chen. The release history of this document and the document it replaces is as follows. --First published in.2015 as GB/T 31561-2015 "Technical Conditions for Clay Sand Regeneration Equipment"; --This is the first revision.

Introduction

Casting is the foundation of modern equipment manufacturing. Clay sand casting is a crucial production process in the foundry industry, producing a significant volume of castings. This process can account for up to 70% of the total casting output, but it consumes a huge amount of new sand, averaging 1.3 to 1.5 tons of new sand per ton of casting. Discharge an equal amount of waste sand. The clay sand recycling process involves pre-treating the old sand through processes such as crushing, screening, and magnetic separation, followed by further processing such as roasting, friction, and washing. The process of removing the binder from the surface of old sand gives it the same or similar processing properties as new sand, thereby reducing the demand for new sand. Reduce solid waste emissions. To reduce the overexploitation of natural resources and mitigate the environmental impact of waste sand discharge, the.2015 national standard "Regeneration of Clay Sand" was established. The "Technical Specifications for Complete Sets of Equipment" was published and distributed. The issuance and application of this standard have greatly promoted the manufacturing and application of clay sand recycling equipment. Function. In the past decade, with the rapid development of the clay and sand recycling industry, equipment technology has been rapidly updated and iterated, and the country's energy conservation and environmental protection policies have also... With increasingly stringent requirements, some clauses in the.2015 edition of the "Technical Conditions for Clay Sand Regeneration Equipment" standard are no longer sufficient to meet current technological needs. Application demands necessitate a revision of this standard. This revision strengthens the standard in terms of accuracy, standardization, and operability, and can promote the development of equipment for clay sand regeneration. Manufacturers promote industrial development and growth through excellent manufacturing and healthy competition, thus helping foundry enterprises achieve green transformation. Technical Specifications for Clay Sand Regeneration Equipment

1 Scope

This document specifies the technical requirements for clay sand regeneration equipment, describes the corresponding test methods, and stipulates inspection rules and marking procedures. Packaging, transportation and storage. This document applies to the manufacture of equipment for the regeneration of clay sand using thermal regeneration.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are listed below. 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. GB/T 150 (All Parts) Pressure Vessels GB/T 191 Pictorial Symbols for Packaging and Storage GB/T 1804-2000 General tolerances - Tolerances for linear and angular dimensions without specified tolerances GB/T 2684 Test methods for foundry sand and its mixtures GB/T 3098.1-2010 Mechanical properties of fasteners - bolts, screws and studs GB/T 3098.2-2015 Mechanical Properties of Fasteners - Nuts GB/T 5226.1 Electrical Safety of Machinery - Electrical Equipment of Machinery - Part 1.General Technical Conditions GB/T 5611 Casting Terminology GB/T 6576 Machine Tool Lubrication System GB/T 7932 General rules and safety requirements for pneumatic systems and their components GB 9078 Emission Standard of Air Pollutants for Industrial Furnaces and Kilns GB/T 9442 Silica Sand for Foundry GB/T 10595 Belt Conveyors GB/T 13306 Nameplates GB/T 13384 General Technical Requirements for Packaging of Mechanical and Electrical Products GB/T 16157 Determination of particulate matter and sampling methods for gaseous pollutants in exhaust gas from stationary sources GB/T 17888 (All Parts) - Fixed Access Devices for Machinery Safety GB 18452 Safety Requirements for Crushing Equipment GB 18613-2020 Minimum Energy Efficiency Values and Energy Efficiency Grades for Electric Motors GB 20905 Safety Requirements for Foundry Machinery GB/T 23570 General technical requirements for welded parts of metal cutting machine tools GB/T 23571 Preparation of accompanying technical documents for metal cutting machine tools GB/T 25370 Terminology for Foundry Machinery GB/T 25371 Method for measuring sound pressure level of casting machinery noise GB/T 25711 General Technical Specification for Foundry Machinery GB 50017 Standard for Design of Steel Structures GB/T 50050 Design Code for Industrial Circulating Cooling Water Treatment

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