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NB/T 47003.2-2009

Chinese Standard: 'NB/T 47003.2-2009'
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NB/T 47003.2-2009English295 Add to Cart 0--10 minutes. Auto immediate delivery. Silos for solid materials [Quasi-Official / Academic version - scanned PDF, translated by Standard Committee / Research Institute in China] Valid NB/T 47003.2-2009
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BASIC DATA
Standard ID NB/T 47003.2-2009 (NB/T47003.2-2009)
Description (Translated English) Silos for solid materials [Quasi-Official / Academic version - scanned PDF, translated by Standard Committee / Research Institute in China]
Sector / Industry Energy Industry Standard (Recommended)
Classification of Chinese Standard J74
Classification of International Standard 23.020.10
Word Count Estimation 93,933
Date of Issue 2009-12-01
Date of Implementation 2010-05-01
Older Standard (superseded by this standard) JB/T 4735-1997
Quoted Standard GB 150; GB/T 699-1999; GB/T 700-2006; GB 713-2008; GB 912-2008; GB/T 983-1995; GB/T 985.1-2008; GB/T 1220-2007; GB/T 3077-1999; GB/T 3091-2008; GB/T 3274-2007; GB/T 3280-2007; GB/T 3880.1-2006; GB/T 3880.2-2006; GB/T 3880.3-2006; GB/T 4237-2007; GB/T 5117-1995; GB/T 5118-1995; GB/T 5293-1999; GB 6479-2000; GB/T 6893-2000; GB/T 8162-2008; GB/T 8163-2008; GB/T 12470-2003; GB 13296-2007; GB/T 14957-1994; GB/T 14976-2002; GB 50009-2001; JB/T 4710; JB/T 4711-2003; JB/T 4712.3-2007; JB/T 4726-2000; JB/T 4728-2000; JB/T 4730.1-2005; JB/T 4730.2-2005; JB/T 4730.3-2005; JB/T 4730.4-2005; JB/T 4730.5-2005; JB/T 4730.6-2005; JB 4733-1996; JB/T 4734; JB/T 4747-2002; NB/T 47003.1; HG 20660-2000; YB/T 5092-2005
Drafting Organization Gansu Lanke Petrochemical Co., Ltd. High-tech equipment
Administrative Organization National Standardization Technical Committee Boiler and Pressure Vessel
Regulation (derived from) ?National Energy Board Announcement 2009 No.2
Summary This standard provides a solid silo (hereinafter referred to as silos) design, manufacturing, inspection and acceptance requirements. This section applies to vessels larger than 15m3, design pressure greater -500Pa less than 0. 1Mpa, the design temperature for the shell material allows the use of warehouse storage temperature solid steel loose material, aluminum welding vertical cylindrical silo. Beyond the scope of the above parameters silos, also refer to the part design and manufacture. This section does not apply to the following types of bins: a) directly buried underground silos, b) dressed as extremely or highly toxic hazard silo medium, c) hopper frequently handling, d) volume of less than or equal to 15m3 hopper.

ICS 23.020.10
PROFESSIONAL STANDARD NB
OF THE PEOPLE'S REPUBLIC OF CHINA
J 74
NB/T 47003.2-2009 (JB/T 4735.2)
Partially Replace JB/T 4735-1997
Silos for Solid Materials
ISSUED ON. DECEMBER 1, 2009
IMPLEMENTED ON. MAY 1, 2010
Issued by National Energy Administration
Contents
Scope ... 115
2 No1mative References .. 115
3 Terms and Definitions .. 11 7
4 General Provisions ... 118
5 Materials .. 123
6 Design Calculation .. . 136
8 Manufacturing, Inspection and Acceptance of Aluminum Silos ... 178
Appendix A (Informative) Structure of Si loses for Solid Materials .. 182
Silos for Solid Materials
1 Scope
1.1 This part in NB/T 47003 specifies the requirements in design, manufacture, inspection
and acceptance of silos for solid materials (hereinafter referred to as silos).
1.2 This part is applicable to steei or Aluminum made welded vertical circular silos used for
storing solid bulky materials, which the volume is greater than 15m3, the design pressure is
larger than -500Pa and less than O.lMPa, and the design temperature is the service temperature
required by silos shell material.
The silos which the parameters exceed above parameter range may be designed and
manufactured by reference to this paii.
1.3 This standard is not applicable to the following siloses.
a) Silos directly embedded underground;
b) Siloses storing extremely or highly toxic medium;
c) Bunkers moved often;
d) Bunkers which the volume is less than or equal to l 5m3 .
2 Normative References
The following referenced documents are indispensable references, only the edition cited
applies. For the dated n01mative references, only the dated editions are applicable to this
document. For undated references, the latest edition of the normative document (including all
the amendments) referred to applies.
GB 150 "Steel Pressure Vessels"
GB/T 699- 1999 "Quality Carbon Structural Steels"
GB/T 700-2006 "Carbon Structural Steels" (GB/T 700-2006, ISO 630.1995, NEQ)
GB 713-2008 "Steel Plates for Boiler and Pressure Vessels" (GB 713 -2008, IS09328-
2. 2004, NEQ)
GB 912-2008 "Hot-rolled Plates and Strips of Carbon Structural Steels and High Strength
Low Alloy Structural Steels" (GB 912-2008, IS04995.2001(E), ISO 4996.1999(E), NEQ)
GB/T 983-1995 "Stainless Steel Covered Electrodes"
GB/T 985 .1-2008 "Recommended Joint Preparation for Gas Welding Manual Metal Arc
Welding Gas-shield Arc Welding and Beam Welding" (GB/T 985.1-2008, ISO 9692-1.2003 ,
MOD)
GB/T 1220-2007 "Stainless Steel Bars"
GB/T 3077-1999 "Alloy Structure Steels"
GB/T 3091-2008 "Welded Steel Pipes for Low Pressure Liquid Delivery" (GB/T 3091-
2008, ISO 559. 1991, NEQ)
GB/T 3274-2007 "Hot-rolled Plates and Strips of Carbon Structural Steels and High
Strength Low Alloy Structural Steels"
GB/T 3280-2007 "Cold Rolled Stainless Steel Plate Sheet and Strip"
GB/T 3880.1-2006 "Wrought Aluminum and Aluminum Alloy Plates, Sheets and Strips
for General Engineering-Pait 1. Technical Conditions of Delivery"
GB/T 3880.2-2006 "Wrought Aluminum and Aluminum Alloy Plates Sheets and Strips
for General Engineering-Part 2. Mechanical Properties"
GB/T 3880.3-2006 "Wrought Aluminum and Aluminum Alloy Plates, Sheets and Strips
for General Engineering-Part 3. Tolerances on Forms and Dimensions"
GB/T 4237-2007 "Hot Rolled Stainless Steel Plate Sheet and Strip"
GB/T 5117-1995 "Carbon Steel Covered Electrodes"
GB/T 5118-1995 "Low Alloy Steel Covered Electrodes"
GB/T 5293-1999 "Carbon Steel Electrodes and Fluxs for Submerged Arc Welding"
GB 6479- 2000 "Seamless Steel Tubes for High-pressure for Chemical Fertilizer
Equipments" (GB6479 - 2000, IS09329-2.1997, NEQ)
GB/T 6893 - 2000 "Aluminum and Aluminum Alloy Cold Drawn (Rolled) Seamless
Tubes"
GB/T 8162-2008 "Seamless Steel Tubes for Structural Purposes"
GB/T 8163-2008 "Seamless Steel Tubes for Liquid Service"
GB/T 12470-2003 "Low Alloy Steel Electrodes and Fluxs for Submerged Arc Welding"
GB 13296-2007 "Seamless Stainless Steel Tubes for Boiler and Heat Exchanger"
GB/T 14957-1994 "Steel Wires for Melt Welding"
GB/T 14976-2002 "Stainless Steel Seamless Tubes for Fluid Transpoti"
GB 50009-2001 "Load Code for the Design of Building Structures"
JB/T 4 71 0 "Steel Vertical Vessels Supported by Skirt"
JB/T 4 711 -2003 "Coating and Packing for Pressure Vessels Transport"
JB/T 4712.3-2007 "Vessel Suppo1ts-Part 3. Lug Support"
JB 4 726- 2000 "Carbon and Low-alloy Steel Forgings for Pressure Vessels"
JB 4728-2000 "Stainless Steel Forgings for Pressure Vessels"
In any case, the surface temperature of the component metal must not exceed the allowable
service temperature of the metal material.
3.5 Design Temperature
Design temperature is referred to the set metal temperature of a component part under
normal operating conditions, and the value hereof must not be lower than the possible
maximal metal temperature of the component metal under operating conditions. As for the
metal temperature under 0 'C, the design temperature must not be higher than the minimal
temperature the component metal may reach.
Note. The design pressure and design temperature under sever working conditions, of the silos under various operating
conditions, shall be indicated clear in the pattern or correspond technical document.
3.6 Test Temperature
Test temperature is referred to the metal temperature of the vessel shell in the process of
the pressure test.
4 General Provisions
4.1 General Rules
The design, manufacture, inspection and acceptance of silos shall meet the requirements of
NB/T 47003.1, besides the requirements of this pati in NB/T 47003.
4.2 Scope of Silos
The silos scope in this Pati refers to the silos shell and the spare parts connected with it,
which are restricted to the following scope.
a) Connection of silos to external pipe.
1) The first girth joint groove end face on weld joint;
2) The first threaded connector end surface of screwed joint;
3) The first flange sealing surface of flange joint;
4) The first sealing surface of special connecting piece or pipe fittings connection;
b) Closing component patis of silos opening, like fanned head of manhole and handhole,
flat-cover and their connecting fasteners;
c) Bearing components, opening reinforcement components, their welding joints with
the shell, etc.;
d) Safe relief devices directly mounted on silos (meeting the requirements of the
pattern).
4.3 Qualification and Responsibility
4.3.1 The design and manufacturing organizations of the silos shall be possessed of sound
quality management system.
5.1.5 For selecting the materials for silos, the following factors shall be taken into consideration.
operating conditions (like design temperature, media characteristics and operating feature).
Welding performance of material, manufacturing process of silos, silos economical rationality,
etc ..
5.1.6 The special requirements, if specified for the material, shall be indicated clear by the
design organization in the pattern or corresponding technical documents.
5.2 Steel Plate
5.2.1 The standard operating condition and allowable stress of steel plates shall meet the
requirements of Table 5.
5.2.2 The application scope of carbon steel rimmed sheet Q235A.F shall meet the following
requirements.
a) The service temperature of the steel plate is O'C-250 'C;
b) The thickness of the steel plate, used for silos shell, is not greater ihan 16mm;
c) It must not be used for the silos containing the medium with extremely, highly and
intermediate hazard medium, or combustible medium.
Note. The level division of medium toxici ty shall meet the requirements of HG 20660.
5.2.3 The application scope of carbon st ill steel Q235A, Q235B and Q235C shall meet the
following requirements.
a) The service temperature of the steel plate is 0°C-350 °C;
b) The thickness of the steel plate, used for silos shell, is not greater than 40mm.
Note. The silos open to surrounding is not limited by above application scope.
5.2.4 Q245R and Q345R steel plates, used for the component paiis like flange and flat-
cover, with the thickness greater than 50mm, shall be used under normalized condition.
5.2.5 When the steel plate is used for silos shell circular cylinder, and the design temperature
and the steel plate thickness meet the following conditions, a steel plate shall be selected from
each batch for Charpy V-notch low temperature impact test. The test temperature shall be the
design minimum temperature, and the test piece is sampled along the transverse direction.
a) Q245R steel plate which the design temperature is -20°C-- l0 °C and the steel
plate thickness is greater than 12mm. the impact power mean value of 3 test pieces is not less
than 27J; it is allowable that the impact power of a test piece is less than the mean value, and
it...
Related standard:   NB/T 47003.1-2009  NB/T 47017-2011
Related PDF sample:   GB/T 38109-2019  GB/T 34530.2-2017
   
 
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