Feature of Stacker-Reclaimers

Efficient Continuous Operation: The integration of a boom conveyor and slewing mechanism enables seamless switching between stacking and reclaiming, significantly improving operational efficiency.

High Flexibility: The boom can rotate, luff, and telescopically extend, adapting to material piles of varying heights and angles for broad coverage.

Automated Control: Equipped with an intelligent control system, it supports remote operation, automatic positioning, and flow rate adjustment, minimizing manual intervention.

Robust Performance in Harsh Environments: Reinforced structural design with wind-resistant and dust-proof features ensures stable operation in high-dust, high-wind, and other challenging conditions.

Energy Efficiency and Environmental Protection: Utilizes low-energy drive systems, with select models incorporating spray dust suppression systems to reduce environmental pollution.

Application Fields of Stacker-Reclaimers

Thermal Power Plants: Used for coal stacking and reclaiming to ensure uninterrupted fuel supply for boilers.

Ports and Terminals: Handles bulk cargo such as iron ore, coal, and grain, enhancing port handling capacity.

Iron & Steel and Metallurgical Industries: Manages storage and transportation of raw materials like iron ore, coke, and limestone.

Coal Mines: Performs large-scale coal stacking, reclaiming, and blending operations in coal storage yards.

Building Materials and Chemical Sectors: Facilitates storage management of cement raw materials, fertilizers, aggregates, and other bulk commodities.

Composition of stacker-reclaimer

I. Main Structure

1. Gantry Frame

Function: Serves as the supporting framework of the equipment, carrying the boom, drive systems, and other components to ensure overall stability and load-bearing capacity.

Components: Includes main beams, support legs, counterweights, etc. Some models adopt full-gantry or semi-gantry designs.

2. Boom

Function: The core component for mounting the conveyor, enabling material stacking and reclaiming coverage through telescoping, luffing, and slewing motions.

Types: Fixed boom or telescopic boom, with some models featuring bidirectional belts (dual-mode for stacking/reclaiming).

II. Motion and Drive Systems

1. Slewing Mechanism

Function: Drives the boom to rotate horizontally (typically 360°), expanding the working radius and precisely positioning the material pile.

Components: Slewing bearing, drive motors, gearboxes, and control systems.

2. Luffing Mechanism

Function: Adjusts the boom's elevation angle to accommodate material piles of varying heights, avoiding collisions with the ground or other equipment.

Implementation: Hydraulic cylinder drives or wire rope winch systems.

3. Travel Mechanism

Function: Drives the equipment along tracks or ground to cover the entire stockyard area.

Types: Rail-mounted (common in large stockyards) or crawler-type (suitable for flexible sites).

III. Material Handling System

1. Boom Conveyor

Function: Transports materials to the top of the pile during stacking and transfers materials from the pile to downstream conveyors via scrapers or bucket wheels during reclaiming.

Design Features: Bidirectional operation, with some models equipped with reversible belts or dual-belt configurations.

2. Reclaiming Device

Types:

Bucket Wheel Reclaimer: Excavates materials via a rotating bucket wheel, suitable for hard bulk materials (e.g., ores, coal).

Scraper Reclaimer: Uses scraper chains for layered reclaiming, ideal for loose materials (e.g., grains, fertilizers).

IV. Control and Safety Systems

1. Intelligent Control System

Function: Integrates PLCs, sensors, and automation software to enable stacking/reclaiming path planning, flow monitoring, fault diagnostics, and remote operation.

2. Safety Protection Devices

Components:

Limit Switches: Prevent the boom from exceeding rotational or luffing ranges.

3. Anti-Collision System: Monitors obstacles via LiDAR or cameras.

Wind Speed Monitor: Automatically locks the equipment during strong winds to prevent tipping.

V. Auxiliary Systems

1. Spray Dust Suppression System

Function: Sprays mist during stacking/reclaiming to reduce dust dispersion.

2. Lubrication System

Function: Automatically supplies lubricant to critical components (e.g., slewing bearings, gears) to extend service life.