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GB 50270-2010: Code for construction and acceptance of conveyor equipment installation engineering
GB 50270-2010
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
UDC
P GB 50270-2010
Code for Construction and Acceptance of Conveyor
Equipment Installation Engineering
ISSUED ON: MAY 31, 2010
IMPLEMENTED ON: DECEMBER 1, 2010
Issued by: Ministry of Housing and Urban-Rural Construction of the People’s
Republic of China;
General Administration of Quality Supervision, Inspection and
Quarantine of the People’s Republic of China.
Table of Contents
1 General Provisions ... 7
2 Basic Requirement ... 8
3 Belt Conveyor ... 12
4 Slat Conveyor Equipment ... 16
4.1 Slat Conveyer ... 16
4.2 Light-duty Slat Feeder ... 16
4.3 Middle-duty Slat Feeder ... 17
4.4 Heavy-duty Slat Feeder ... 18
4.5 Test Run ... 19
5 Vertical Bucket Elevator ... 20
6 Screw Conveyor ... 25
7 Roller Conveyor ... 26
8 Overhead Conveyer ... 28
9 Vibrating Conveyor ... 32
10 En-masse Conveyer ... 33
11 Pneumatic Conveyor ... 36
12 Mine Hoist and Winch ... 37
12.1 Winding Mine Hoist and Winch ... 37
12.2 Multi-rope Hoist ... 41
12.3 Other Winches ... 43
12.4 Test Run ... 43
13 Acceptance ... 48
Appendix A Belt Connecting Method for Belt Conveyor ... 49
Explanation of Wording in This Code ... 52
List of Quoted Standards ... 53
1 General Provisions
1.0.1 This code is developed in order to improve the construction level of the conveyor
equipment installation engineering, promote the technological progress, ensure the engineering
quality and safety and improve the economic performance.
1.0.2 This code applies to the construction and acceptance of the installation engineering of
belt conveyor, slat conveyor equipment, vertical bucket elevator, screw conveyor, roller
conveyor, overhead conveyor, vibrating conveyor, en-masse conveyer, pneumatic conveyor as
well as mine hoist and winch.
1.0.3 In addition to this code, the construction and acceptance of conveyor equipment
installation engineering still shall be in accordance with those specified in the current relevant
national standards.
4 Slat Conveyor Equipment
4.1 Slat Conveyer
4.1.1 The assembling of frame shall meet the following provisions:
1 The deviation in the horizontal positions of the center line of frame and the longitudinal
center line of conveyor shall not be larger than 2mm.
2 The straightness deviation of the center line of frame shall not be larger than 1/1000.
3 The difference in the length of these two diagonal lines of the cross section of frame
shall not be larger than 1‰ of the average length of these two diagonal lines or 10mm.
4 The deviation in the verticality of the frame to the building floor shall not be larger
than 2/1000.
4.1.2 The assembling of guide tracks shall meet the following provisions:
1 The deviation in the horizontal positions of longitudinal center line between guide
tracks and the longitudinal center line of conveyor shall not be larger than 1mm.
2 The permissible deviation of the track gauge is ±2mm.
3 The joints of guide tracks shall be flat and smooth, their displacement towards right
or left shall not be larger than 0.2mm, and the difference of their height shall not be larger
than 1mm.
4 The gap at joint shall not be larger than 2mm.
5 The guide surface shall be smooth and its verticality deviation shall not be larger
than 10/1000.
4.1.3 The assembling the tension apparatus of cast car type conveyor shall meet the
following provisions:
1 The joint of the traveling rail with the trapped rail shall be flat and smooth, their
offset towards right or left shall not be larger than 1mm, and the difference of height shall not
be larger than 0.3mm.
2 The joint of the traveling guide track with the trapped guide track shall be flat and
smooth, their displacement towards right or left shall not be larger than 0.2mm, and the
difference of height shall not be larger than 1mm.
3 The sliding block of tension apparatus shall match with the slide track well, and their
local gap shall not be larger than 1mm.
4.2 Light-duty Slat Feeder
4.2.1 The deviation in the longitudinal straightness of the main beam of frame shall not be
larger than 1/1000; the difference in the diagonal lines of the frame shall not be larger than
8 Overhead Conveyer
8.0.1 The assembling of metal member shall meet the following provisions:
1 The verticality deviation of the hanger or upright column shall not be larger than
1/1000.
2 The levelness deviation of cantilever shall not be larger than 3/1000.
3 The deviation in the vertical and lateral levelness of the platform shall not be larger
than 3/1000.
4 The offset of the longitudinal center line at the supporting point of track to the
longitudinal center line of conveyor shall not be larger than 3mm.
8.0.2 When laying the track for universal overhead conveyors, the following provisions
shall be met:
1 The straightness deviation of the track within the straight segment shall not be larger
than 3mm within any length of 6000mm and shall not be larger than 7mm within the full
length.
2 The distortion of track within the straight segment shall not be larger 1% of the orbit
altitude within any length of 6000mm.
3 The distortion of vertical curved track shall not be larger than 2% of the orbit
altitude.
4 The distortion of horizontal curved track shall not be larger than 1.5% of the orbit
altitude.
5 The height difference and transverse misalignment of the seating face at joint of track
shall not be larger than 0.5mm.
8.0.3 When laying the track for power and free overhead conveyors, the following
provisions shall be met:
1 The straightness deviation of single straight track shall not be larger than 1.5mm
within any length of 1000mm and shall not be larger than 5mm within the full length.
2 The deviation in the degree of symmetry between the center line of traction rail and
the center line of bearing rail shall not be larger than 1mm.
3 The distortion of straight track, horizontal curved track and vertical curved track at
their both end faces shall not be larger than 1.3% of the orbit altitude.
4 The height difference and transverse misalignment of the seating face at joint of track
shall not be larger than 0.5mm, and the gap at the joint shall not be larger than 1mm.
8.0.4 When laying the track for enclosed-track power and free overhead conveyors, the
following provisions shall be met:
1 The straightness deviation of track shall not be larger than 2.5mm within any length
of 1000mm and shall not be larger than 6mm within any length of 6000mm.
2 The deviation in the degree of symmetry between the center line of traction rail and
the center line of bearing rail shall not be larger than 1mm.
3 The deviation in height of the wheel tread at outlet and inlet of curved track shall not
be larger than 3m.
8.0.5 When laying the track for overhead electrical monorail conveyors, the following
provisions shall be met:
1 The straightness deviation of track shall not be larger than 0.8/1000 and shall not be
larger than 30mm.
2 The verticality deviation of track shall not be larger than 1% of the orbit altitude.
3 The distortion of track in straight segment shall not be larger than 0.5% of the orbit
altitude within any length of 3000mm.
4 The distortion of curved track shall not be larger than 1.5% of the orbit altitude.
5 The misalignment of track at the joint shall not be larger than 1mm and the gap at the
joint shall not be larger than 2mm.
8.0.6 When laying ...