General Gantry Crane Tender Technical Specifications (100T/20T)

Chapter 1: Equipment Purpose and Technical Parameters

1.1 Equipment Purpose
This equipment is primarily used for the hoisting operations of coke buckets and self-propelled coke bucket cars within the pit, facilitating the vertical lifting of equipment from the pit to the maintenance position and the reverse reinstallation process, ensuring the continuous operation of the Coke Dry Quenching (CDQ) production system.

1.2 Technical Parameter Table

Item	Parameter Value
Model	QD100/20 Hook Gantry Crane
Span	20m (±50mm)
Main Hook Rated Lifting Capacity	100t (Static Load 125t / Dynamic Load 110t)
Auxiliary Hook Rated Lifting Capacity	20t (Static Load 25t / Dynamic Load 22t)
Main Hook Lifting Height	12m (±100mm)
Auxiliary Hook Lifting Height	12m (±100mm)
Main Hook Lifting Speed	0-10 m/min (Variable Frequency Speed Control)
Auxiliary Hook Lifting Speed	0-25 m/min (Variable Frequency Speed Control)
Trolley Travel Speed (Longitudinal)	25 m/min (±10%)
Crab Travel Speed (Transverse)	12.5 m/min (±10%)
Duty Cycle	Class A3 (Intermittent 24h operation, single continuous operation ≤ 12h)
Power Supply Specifications	Main Power: AC380V ±10%, 50Hz, 3-phase; Control Power: AC220V ±10%, 50Hz, 1-phase
Power Supply Method	Conductor Rail (Busbar) Supply
Rail Model	To be confirmed by manufacturer based on wheel pressure calculation (QU80 recommended)
Maximum Wheel Load	To be provided by manufacturer’s calculation (includes dynamic load factor)

Chapter 2: Standards and Specifications

1. Design and Manufacturing Standards:
   • GB/T 3811-2008 “Design Rules for Cranes”
   • GB/T 14406-2011 “General Gantry Cranes”
   • GB 6067.1-2010 “Safety Regulations for Lifting Appliances”
   • JB/T 1306-2008 “Electric Single Girder Cranes”
2. Acceptance Standards:
   • GB 5905-2011 “Test Code and Procedures for Cranes”
   • TSG Q7016-2016 “Supervision Inspection Rules for Installation, Alteration, and Major Repair of Lifting Equipment”
3. Material Standards:
   • Main Structure Steel: Q345B (with Quality Certificate)
   • Welding Materials: Matched to base metal properties, provide melting analysis report
   • Coating Materials: Heat-resistant 300°C Inorganic Zinc Silicate Primer (E06-28) and Organic Silicon High-Temperature Anti-corrosion Paint (W61-64)

Chapter 3: Technical Requirements

3.1 Structural Design

1. Main Structure:
   • Adopt box-type double girder gantry structure, width of main girder upper flange plate ≥ 800mm.
   • Connection between legs and lower cross beam uses high-strength bolts (Grade 10.9).
   • Whole machine anti-overturning stability coefficient ≥ 1.4, fatigue strength meets 15-year service life.
2. Travel Mechanisms:
   • Trolley Travel Mechanism (Longitudinal): “Three-in-one” hard gear surface reducer (with brake).
   • Crab Travel Mechanism (Transverse): Central drive hard gear surface reducer.
   • Anti-collision Device: Polyurethane buffer + laser anti-collision sensor.

3.2 Electrical System

1. Control Method:
   • Cab operation + Remote control operation (dual mode).
   • Frequency inverters from ABB/Siemens brands.
   • PLC control system预留 MODBUS-TCP interface.
2. Safety Protection:
   • Overload limiter (accuracy ±3%).
   • Triple limit protection (Mechanical / Electrical / Software).
   • Zero position protection, emergency power-off switch.
   • Conductor rail protection board (height ≥ 2.5m).

3.3 Painting Requirements

1. Surface Preparation:
   • Main structure: Blast cleaning to Sa 2.5 grade.
   • Secondary structure: Mechanical de-rusting to St3 grade.
2. Painting Scheme:
   • Primer: E06-28 Inorganic Zinc Silicate (2 coats × 25μm).
   • Topcoat: W61-64 Organic Silicon High-Temperature Paint (2 coats × 25μm, Orange Red R05).
   • Salt spray test ≥ 1000 hours.

Chapter 4: Scope of Supply

1. Complete Machine Supply:
   • Gantry crane main structure (including rail sweeper).
   • Electrical control system (including conductor rail components).
   • Safety protection devices (wind-resistant tie-downs, anchoring devices).
2. Spare Parts:
   • Brake linings (2 sets).
   • Frequency inverter fan (1 unit).
   • Wire rope (50m each for main/auxiliary hooks).
   • Special tools (torque wrench, level).
3. Technical Documentation:
   • General assembly drawings (CAD2002 format).
   • Electrical schematic diagrams (EPLAN format).
   • Maintenance manual (including wearing parts list).
   • Special equipment supervision inspection certificate.

Chapter 5: Inspection and Testing

1. Factory Acceptance Tests:
   • No-load test (each mechanism operates ≥ 2 hours).
   • Static load test (Main hook 125t / Auxiliary hook 25t).
   • Dynamic load test (Main hook 110t / Auxiliary hook 22t).
2. Site Acceptance:
   • Rail installation accuracy check (Straightness ≤ 3mm / 10m).
   • Noise test (Cab ≤ 85 dB).
   • Insulation resistance test (≥ 1 MΩ).

Chapter 6: Technical Service

1. Installation and Commissioning:
   • Manufacturer dispatses personnel for onsite installation guidance.
   • Provide special rail installation plan.
   • Complete self-inspection report and inspection application documents.
2. Training Services:
   • Operator training (≥ 8 hours).
   • Maintenance personnel training (≥ 16 hours).
   • Provide training materials and assessment tests.
3. Warranty Period:
   • Whole machine warranty 18 months (includes wearing parts).
   • Major malfunction onsite service within 48 hours.
   • Lifetime technical consultation provided.