GB/T 50377-2019 PDF English
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GB/T 50377-2019: PDF in English (GBT 50377-2019) GB/T 50377-2019
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
UDC
P GB/T 50377-2019
Standard for installation and acceptance of mechanical
equipment in metallurgical mine
ISSUED ON: NOVEMBER 22, 2019
IMPLEMENTED ON: MARCH 01, 2020
Issued by: Ministry of Housing and Urban-Rural Development of PRC;
State Administration for Market Regulation.
NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA
Standard for installation and acceptance of mechanical
equipment in metallurgical mine
Main drafting organization: China Metallurgical Construction Association
Approving department: Ministry of Housing and Urban-Rural Development of the
People's Republic of China
Date of implementation: March 1, 2020
2019 Beijing
Table of Contents
Foreword ... 8
1 General provisions ... 10
2 Terms ... 10
3 Basic requirements ... 11
3.1 Installation ... 11
3.2 Quality acceptance ... 11
4 Equipment foundation, anchor bolts and base plate ... 15
4.1 Installation ... 15
4.2 Quality acceptance ... 15
5 Equipment and material delivered to site ... 17
5.1 General requirements ... 17
5.2 Equipment and materials ... 17
6 Mining equipment ... 18
6.1 Installation of tramcar side unloading device ... 18
6.2 Quality acceptance of tramcar side unloading device ... 18
6.3 Installation of lifting device ... 19
6.4 Quality acceptance of lifting device ... 19
6.5 Test run ... 20
7 Ore stacking, taking and unloading equipment ... 20
7.1 Installation of arm-type bucket wheel stacker-reclaimer ... 20
7.2 Quality acceptance of arm-type bucket wheel stacker-reclaimer ... 21
7.3 Installation of circular stacker-reclaimer ... 23
7.4 Quality acceptance of circular stacker-reclaimer ... 24
7.5 Installation of portal-type bucket wheel stacker-reclaimer ... 25
7.6 Quality acceptance of portal-type bucket wheel stacker-reclaimer ... 25
7.7 Installation of dumper ... 26
7.8 Quality acceptance of dumper ... 28
7.9 Test run ... 30
8 Continuous long distance ore transportation and storage equipment ... 31
8.1 Installation of long distance transport belt conveyor ... 31
8.2 Quality acceptance of long distance transport belt conveyor ... 32
8.3 Installation of tubular belt conveyor ... 33
8.4 Quality acceptance of tubular belt conveyor ... 33
8.5 Installation of steel storehouse and slots ... 34
8.6 Quality acceptance of steel storehouse and slots ... 35
8.7 Test run ... 35
Standard for installation and acceptance of mechanical
equipment in metallurgical mine
1 General provisions
1.0.1 This standard is formulated to ensure the quality of installation of mining
machinery and equipment.
1.0.2 This standard applies to the installation and quality acceptance of mechanical
equipment and mining electrical equipment for new, rebuilt, expanded ferrous mines
such as mining, long-distance continuous transport, stacking and reclaiming, crushing
and sieving, grinding and classifying, separation, dewatering, etc.
1.0.3 The requirements for installation quality in engineering technical documents,
contracts, etc. for the installation of mining machinery and equipment shall not be lower
than the requirements of this standard.
1.0.4 In addition to complying with the requirements of this standard, the installation
and quality acceptance of mining machinery and equipment projects shall also comply
with the requirements of the relevant national standards in force.
2 Terms
2.0.1 Magnetic separation
A separation method that uses the magnetic difference of mineral materials to achieve
separation.
2.0.2 Flotation
A separation method, that uses the buoyancy of bubbles to separate materials from
slurry, based on the differences in physical and chemical properties of granular mineral
materials.
2.0.3 Gravity separation
A separation method, that uses different densities of granular mineral materials to show
different movement speeds and trajectories, under the action of air, water, emulsion and
other media and mechanical forces.
2.0.4 Tubular belt conveyor
Also known as tube-type belt conveyor and round tube belt conveyor. The receiving
and discharging sections are the same as those of the belt conveyor. The cross section
of the transport section is a closed hexagonal roller, which forces the belt to form a
nearly circular shape, so that the material can be transported in a closed tubular belt
without pollution or leakage. At the same time, horizontal and vertical turns can be
realized; the upper and lower belts can transport materials in both directions at the same
time.
3 Basic requirements
3.1 Installation
3.1.1 The construction site shall have corresponding construction technical standards,
a sound quality management system, quality control and inspection system, as well as
technical documents such as construction program, construction plan, operation design
approved by the technical person in charge.
3.1.2 Design changes shall be accompanied by a design change notice or technical
verification signature certificate.
3.1.3 Construction quality inspection and acceptance shall use measuring instruments
that have been verified and calibrated.
3.1.4 Special operations personnel must pass the examination and obtain a certificate
of qualification; perform construction work within the scope of the qualified
examination items and their approval.
3.1.5 Mining equipment installation projects shall comply with the following
requirements:
1 Handover inspection shall be carried out between related disciplines and records
shall be formed;
2 After each process is completed, it shall be checked and recorded. The next process
shall not be carried out without inspection and approval of the previous process.
3.1.6 The construction organization shall notify the relevant organizations of the
acceptance of the secondary grouting of equipment and other concealed works before
concealment; form acceptance documents.
3.2 Quality acceptance
3.2.1 Construction quality acceptance shall be carried out according to sub-projects,
division projects, unit projects on the premise that the construction organization has
1 The quality of all division projects included in the sub-project has been accepted;
2 Quality control records shall be complete;
3 The equipment unit has passed the no-load test run.
3.2.4 The acceptance of the quality of the unit project shall meet the following
requirements:
1 The quality of all division projects included in the unit project has been accepted;
2 Quality control records shall be complete;
3 The equipment has passed the no-load linkage test run;
4 The visual quality has been accepted.
3.2.5 The visual quality inspection items of unit project shall comply with the following
provisions:
1 Bolts, nuts, and washers shall be fully configured according to the design. After
tightening, the bolts shall be exposed from the nuts or flush with the nuts; the
exposed threads shall be free of damage; the bolt insertion direction shall be
consistent except for structural reasons;
2 The seal shall not leak oil, water or air;
3 The pipeline laying layout shall be reasonable, neatly arranged, beautiful;
4 The layer thickness of the sound insulation and thermal insulation materials shall
be uniform; the binding shall be firm; the surface shall be flat;
5 The paint coating shall be uniform, without holiday, peeling, obvious wrinkles and
bubbles; the color shall be basically consistent;
6 Walkways, ladders, railings shall be firmly fixed without obvious appearance
defects;
7 The weld ripples shall be uniform; the welding slag and spatter shall be basically
cleaned;
8 There shall be no slag at the cut;
9 The equipment shall be free of defects; the exposed processing surface shall be
well protected;
10 The cables shall be laid neatly and tied in accordance with the requirements;
11 The equipment shall be installed neatly and the surface paint shall be intact;
12 The construction site management shall be orderly; there shall be no construction
debris around the equipment;
13 The random inspection of inspection items shall not be less than 10.
3.2.6 The quality acceptance record of the installation project shall comply with the
following provisions:
1 The quality acceptance record of the sub-project shall be implemented in
accordance with Appendix A of this standard;
2 The quality acceptance record of the division project shall be implemented in
accordance with Appendix B of this standard;
3 The quality acceptance record of the unit project shall be implemented in
accordance with Appendix C of this standard;
4 The record of the equipment no-load test run shall be implemented in accordance
with Appendix D of this standard.
3.2.7 If the construction quality does not meet the requirements, it shall be handled or
reworked in time and re-accepted.
3.2.8 If the project does not meet the requirements and still cannot meet the safety
requirements after treatment or rework, it shall not be accepted.
3.2.9 The quality acceptance procedure of the installation project shall comply with the
following provisions:
1 The supervision engineer or the project technical person in charge of the building
organization shall organize the project professional technical person in charge or
foreman, quality inspector, etc. of the construction organization to accept the sub-
project;
2 The general supervision engineer or the project person in charge of the construction
organization shall organize the project person in charge and the person in charge
of technology and quality of the building organization to accept the division
project;
3 After the completion of the unit project, the construction organization shall
organize the inspection and evaluation by itself; submit the project acceptance
report to the building organization;
4 After the building organization receives the project acceptance report, the person
in charge of the building organization shall organize the person in charge of the
construction organization, design, supervision, and other units to accept the unit
project;
design technical documents.
Inspection quantity: Full inspection.
Inspection method: Check the foundation handover data.
4.2.2 The equipment foundation axis position, elevation, size, anchor bolt position shall
comply with the requirements of the design technical documents and the current
national standard "General code for construction and acceptance of mechanical
equipment installation engineering" GB 50231.
Inspection quantity: Full inspection.
Inspection method: Check the review record.
4.2.3 The specifications and tightening of anchor bolts must comply with the design
technical documents.
Inspection quantity: 20% random inspection and no less than 4.
Inspection method: Check quality certification documents, measure with ruler, check
tightening records, hammer nut inspection.
4.2.4 The mortar method is used to set the base plate; the strength of the mortar concrete
after 48 hours shall reach the design strength of the foundation concrete.
Inspection quantity: Batch by batch.
Inspection method: Check the strength report of the mortar test block.
II General items
4.2.5 The anchor bolts shall be vertical in the reserved holes; the distance from the hole
wall shall be greater than 15 mm and shall not touch the bottom of the hole.
Inspection quantity: Full inspection.
Inspection method: Observation inspection.
4.2.6 The surface of the concrete foundation where the pad is placed by the grinding
method shall be ground flat; the contact points between the concrete surface and the
base plate shall be evenly distributed.
Inspection quantity: Random inspection of 20%.
Inspection method: Observation inspection.
5 Equipment and material delivered to site
5.1 General requirements
5.1.1 The equipment and material mobilization plan shall be prepared according to the
construction schedule.
5.1.2 When the equipment is transported and hoisted, the hoisting point shall be at the
marked position of the equipment and packaging box; protective measures shall be
taken. Transport and hoisting shall not cause damage to the equipment.
5.1.3 Before the equipment is installed, it shall be unpacked for inspection and an
inspection record shall be formed. After the equipment is unpacked, protective
measures shall be taken and it shall be installed in time.
5.1.4 When materials are mobilized to site, they shall be neatly stacked according to
specifications and have anti-damage measures.
5.2 Equipment and materials
Main control items
5.2.1 The model, specification, quality, quantity of the equipment must comply with the
design technical documents.
Inspection quantity: Full inspection.
Inspection method: Observation inspection, check the equipment quality certification
documents.
5.2.2 The model, specification, performance, quality, quantity of materials, standard
parts, etc. shall comply with the design technical documents and product standards.
Acceptance shall be made when mobilizing to site; meanwhile an acceptance record
shall be formed.
Inspection quantity: Full inspection of quality certification documents. Physical
inspection of 1% and not less than 5 pieces. If the design technical documents and
relevant standards require re-inspection, re-inspection shall be carried out in accordance
with the requirements.
Inspection method: Check the quality certification documents, re-inspection reports and
acceptance records, appearance inspection or actual measurement.
6.3 Installation of lifting device
6.3.1 The installation sequence should be base plate, bearing seat, reel, reducer, main
motor, hydraulic brake, hydraulic press lubrication system, anti-fall device, etc.
6.3.2 When installing the equipment, a permanent centerline and elevation reference
point shall be set; the base plate shall be installed with a seat pad.
6.3.3 The bearing seat shall be aligned with the fixed end as the reference and the other
side shall be aligned.
6.3.4 Place the reel; check that the reel axis is horizontal.
6.3.5 The main motor shall be aligned with the fixed end bearing or coupling as the
reference.
6.3.6 When assembling the hydraulic brake, a dial indicator shall be used to check the
end face runout of the brake disc.
6.4 Quality acceptance of lifting device
I Main control items
6.4.1 The tightening of the brake disc connection bolts and the contact of the joint
surface shall be checked.
Inspection quantity: Full inspection.
Inspection method: torque wrench, feeler gauge.
6.4.2 The installation of the hydraulic lubrication system shall comply with the relevant
provisions of the current national standard "Code for engineering installation
acceptance of metallurgical machinery hydromatic, lubricating and pneumatic system
equipment" GB/T 50387.
Inspection quantity: Full inspection.
Inspection method: Observation inspection, inspection flushing report.
II General items
6.4.3 The allowable deviation of the lifting device installation shall comply with the
provisions of Table 6.4.3.
Inspection quantity: Full inspections.
7.1.2 The component grouping shall correspond to the exit-factory identification of the
equipment; the tightening torque of the connecting bolts shall meet the requirements of
the technical documents; the contact surface shall be tight; the welding shall meet the
requirements of the accompanying technical documents.
7.1.3 After the running mechanism is hoisted onto the track, the spacing and
perpendicularity of the wheel group shall be adjusted; temporary facilities should be
added for fixing.
7.1.4 After the portal seat is connected to the running mechanism, check and adjust the
spacing and diagonal deviation of the wheel group; check and adjust the center position
of the rotating bearing; the levelness shall meet the requirements of the accompanying
technical documents of the equipment.
7.1.5 Add temporary support to the bucket wheel end of the boom to make the boom
horizontal; adjust the length of the tie rod; the counterweight shall be hoisted and
installed according to the requirements of the manual.
7.1.6 Before installing the components above the portal seat and the rotating device, the
rail clamp, windproof anchor, windproof column shall be installed in place; the stacker-
and reclaimer shall be locked on the track during the interval of the installation
operation.
7.1.7 The installation of the tail car belt conveyor shall comply with the relevant
provisions of the current national standard "Code for construction and acceptance of
conveyor equipment installation engineering" GB 50270.
7.2 Quality acceptance of arm-type bucket wheel stacker-reclaimer
I Main control items
7.2.1 The fastening torque and contact of the joint surface of the high-strength bolt
connection parts shall be checked.
Inspection quantity: 20% random inspection.
Inspection method: Torque wrench, feeler gauge.
7.2.2 The welding work of the connection parts shall comply with the provisions of the
technical documents accompanying the equipment.
Inspection quantity: Full inspection.
Inspection method: Report, weld inspection ruler, observation inspection.
7.2.3 The tightening and locking action of the track clamp and windbreak column shall
position, the steel rope shall be wound around the drum for 3 ~ 5 turns; the
counterweight shall meet the requirements of the accompanying documents.
7.3.9 When the center column is installed in place, the horizontal deviation of the upper
rotating bearing shall be checked. Only after it meets the requirements can it be
connected or welded to the base.
7.4 Quality acceptance of circular stacker-reclaimer
I Main control items
7.4.1 The fastening torque and contact of the joint surface shall be checked at the high-
strength bolt connection parts.
Inspection quantity: Full inspection.
Inspection method: Torque wrench, feeler gauge.
7.4.2 When installing the stacking device and assembling the belt conveyor on the
ground, the assembly standard shall meet the relevant provisions of the current national
standard "Code for construction and acceptance of conveyor equipment installation
engineering" GB 50270. If conditions permit, temporary power supply should be used
for the test run of the belt conveyor unit. After the ground assembly and commissioning
work is completed, lift the whole unit into place; connect the tilting mechanism; add
the counterweight.
Inspection quantity: Full inspection.
Inspection method: Torque wrench, feeler gauge.
7.4.3 The installation of hydraulic transmission equipment shall comply with the
relevant provisions of the current national standard "Code for engineering installation
acceptance of metallurgical machinery hydromatic, lubricating and pneumatic system
equipment" GB/T 50387.
Inspection quantity: Full inspection.
Inspection method: Observation inspection, check flushing report.
7.4.4 The assembly of the pinion of the rotating mechanism shall comply with the
relevant provisions of the design technical documents and the current national standard
"General code for construction and acceptance of mechanical equipment installation
engineering" GB 50231.
Inspection quantity: Full inspection.
Inspection method: Feeler gauge, steel ruler, coloring, lead pressing inspection.
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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