Standard No.:	JB/T 10731-2017
English Name:	Limestone wet ball mill for desulphurization
Chinese Name:	脱硫用湿式石灰石球磨机
Professional Classification:	JB    Professional Standard - Machinery
Issued by:	Ministry of Industry and Information Technology
Issued on:	2017-01-09
Implemented on:	2017-7-1
Status:	valid
Superseding:	JB/T 10731-2007 Limestone wet ball mill for desulphurization
Language:	English
File Format:	PDF
Word Count:	6500 words
Price(USD):	190.0
Delivery:	via email in 1 business day

1 Scope This standard specifies the types and basic parameters, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of limestone wet ball mill for desulphurization. This standard is applicable to wet ball mill (hereinafter referred to as mill) used in flue gas desulphurization pulping system for grinding limestones of different hardness. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 1174-1992 Cast bearing metals GB/T 1348-2009 Spheroidal graphite iron castings GB/T 3768 Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Survey method using an enveloping measurement surface over a reflecting plane GB 5226.1 Electrical safety of machinery - Electrical equipment of machines - Part 1: General requirements GB/T 7233.1-2009 Steel castings - Ultrasonic examination - Part 1: Steel castings for general purposes GB/T 9439-2010 Grey iron castings GB/T 9444-2007 Magnetic particle testing for steel castings GB/T 10095.1-2008 Cylindrical gears - System of accuracy - Part 1: Definitions and allowable values of deviations relevant to corresponding flanks of gear teeth GB/T 10095.2-2008 Cylindrical gears - System of accuracy - Part 2: Definitions and allowable values of deviations relevant to radial composite deviations and runout information GB/T 13306 Plates GB/T 25706 Code of designations for mining machinery products HG/T 20678 Specification on design of steel shell with liner HGJ 229 Code for construction and acceptance of anticorrosive engineering or industrial equipment and pipeline JB/T 5000.3-2007 Heavy mechanical general techniques and standards - Part 3: And standards welding JB/T 5000.6-2007 Heavy mechanical general techniques and standards - Part 6: Steel castings JB/T 5000.8 Heavy mechanical general techniques and standards - Part 8: Forging JB/T 5000.9 Heavy mechanical general techniques and standards - Part 9: Cutting JB/T 5000.12 Heavy mechanical general techniques and standards - Part 12: Paint JB/T 5000.13 Heavy mechanical general techniques and standards - Part 13: Packing JB/T 6396-2006 Specification for the heavy alloy structural steel forgings JB/T 8853 Reduction cylindrical gear units 3 Type and basic parameters 3.1 Type The types of mill are shown in Figures 1 and 2, in which the specific structure is not specified.

Foreword i 1 Scope 2 Normative references 3 Type and basic parameters 3.1 Type 3.2 Model 3.3 Basic parameters 4 Technical requirements 4.1 Basic requirements 4.2 Complete machine performance requirements 4.3 Safety requirements 4.4 Requirements for main parts and components 4.5 Technical requirements for assembly 4.6 Electric control 4.7 Requirements for trial run 4.8 Painting 5 Test methods 6 Inspection rules 6.1 Inspection classification 6.2 End-of-manufacturing inspection 6.3 Type inspection 7 Marking, packaging, transportation and storage Figure 1 Wet overflow limestone ball mill for desulfurization Figure 2 Wet grate limestone ball mill for desulfurization Table 1 Basic parameters of wet overflow limestone ball mill for desulphurization Table 2 Basic parameters of wet grate limestone ball mill for desulphurization Table 3 Radial runout and axial swing tolerance of end cover Table 4 End surface swing tolerance Table 5 Backlash in circular tooth of main and pinion gears