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 steel or aluminium 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 0.1MPa, 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 part.
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 15m3.
2 Normative References
The following referenced documents are indispensable references, only the edition cited applies. For the dated normative 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, ISO9328-2: 2004, NEQ)
GB 912-2008 Hot-rolled plates and strips of carbon structural steels and high strength low alloy structural steels (GB 912-2008, ISO4995:2001(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 aluminium and aluminium alloy plates, sheets and strips for general engineering - part 1: Technical conditions of delivery
GB/T 3880.2-2006 Wrought aluminium and aluminium alloy plate sheets and strips for general engineering - part 2: mechanical properties
GB/T 3880.3-2006 Wrought aluminium and aluminium 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, ISO9329-2:1997, NEQ)
GB/T 6893-2000 Aluminium and aluminium 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 Transport
GB 50009-2001 Load Code for the Design of Building Structures
JB/T 4710 Steel vertical vessels supported by skirt
JB/T 4711-2003 Coating and packing for pressure vessels transport
JB/T 4712.3-2007 Vessel supports - Part 3: lug support
JB 4726-2000 Carbon and Low-alloy Steel Forgings for Pressure Vessels
JB 4728-2000 Stainless Steel Forgings for Pressure Vessels
JB/T 4730.1-2005 Nondestructive Testing of Pressure Equipments - Part 1: General Requirements
JB/T 4730.2-2005 Nondestructive Testing of Pressure Equipments - Part 2: Radiographic Testing
JB/T 4730.3-2005 Nondestructive Testing of Pressure Equipments - Part 2: Ultrasonic Testing
JB/T 4730.4-2005 Nondestructive Testing of Pressure Equipments - Part 2: Magnetic Particle Testing
JB/T 4730.5-2005 Nondestructive Testing of Pressure Equipments - Part 5: Penetrant Testing
JB/T 4730.6-2005 Nondestructive Testing of Pressure Equipments - Part 6: Eddy Current Testing
JB 4733-1996 Explosive stainless clad steel plate for pressure vessels
JB/T 4734 Aluminium welded vessels
JB/T 4747-2002 Technical permission of steel welding rod purchasing for pressure vessels
NB/T 47003.1 Steel Welded Atmospheric Pressure Vessels
HG 20660-2000 Toxicity hazard and explosive risk degree classification for chemical medium in the pressure vessels
YB/T 5092-2005 Stainless steel wires for welding
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