Aggregate belt conveyor system

Overview of Aggregate Belt Conveyor Systems

Aggregate belt conveyor systems transport sand, gravel, and ore using a continuously operating conveyor belt. The conveying capacity of aggregate belt conveyor systems typically ranges from 50 tons to over 2500 tons per hour; the common belt width ranges from 500 mm to 2000 mm; the conveying length can extend from tens of meters to several kilometers, and the uphill incline angle of the standard rubber belt is typically controlled within 16° to 18°.

 

In mining and construction engineering, this system is gradually replacing traditional truck transportation, realizing the automated and continuous movement of materials from the blasting point and crushing site to the storage silo, reducing operating costs caused by fuel consumption and vehicle wear.

Aggregate Belt Conveyor System Components

This system is constructed from the following fixed mechanical components: the conveyor belt, which serves as the load-bearing entity, typically uses multi-layered fabric or steel wire rope as a tensile skeleton and is covered with a wear-resistant rubber layer; the drive unit, installed at the unloading end, includes an electric motor, reducer, and coupling, and is the power source; the roller assembly, with its rubber-coated surface increasing friction, is divided into drive and idler rollers; the idler assembly supports the belt and material, including trough, flat, and self-aligning idlers; the tensioning device maintains belt tension through a screw, counterweight, or hydraulic mechanism; and the scraper uses alloy or polyurethane scrapers to remove residual fines. All components work together to complete the conveying of aggregates.

Benefits of Using an Aggregate Belt Conveyor System

Using an aggregate belt conveyor system provides sand and gravel quarries or mines with the advantages of stability, high throughput, long conveying distance, and adaptability to different terrains.

Reduced Labor and Management Costs: Fully automated operation reduces the number of heavy truck drivers required, minimizing the disruption to production schedules caused by personnel movement.

Reduced energy consumption per ton of material transport: The cost of electric power is far lower than that of fuel-powered trucks, directly reducing the unit price of transporting each ton of aggregate.

Achieved uninterrupted operation around the clock: Unaffected by severe weather conditions such as heavy fog and rain, ensuring a stable supply of materials.

Extended lifespan of related crushing and screening equipment: Continuous and uniform feeding avoids the severe impact on the crusher feed inlet during concentrated truck unloading, slowing down the wear cycle of the liners.

Compliant with mining area dust control standards: With sealed covers, it can prevent material from flying and scattering during transportation, reducing dust concentration in the mining area and meeting production standards.

What types of aggregate belt conveyor systems are there?

Based on different overall mechanical forms and installation methods, aggregate belt conveyor systems have the following four structural types.

Fixed Conveyor: The steel structure support is directly anchored to the concrete foundation or ground, suitable for long-term, stationary mining projects.

Mobile/Portable Belt Conveyors: The bottom frame is equipped with wheeled tires or tracks, and the overall angle can be adjusted via hydraulic cylinders, facilitating changes of workstation between stockpiles. Commonly used in conjunction with temporary stockpiles.

Steep-Angle Corrugated Sidewall Belt Conveyors: The conveyor belt has corrugated rubber sidewalls on both sides and transverse baffles in the middle, enabling the lifting of aggregates on steep slopes of 30° to 90° and even vertically.

Long-Distance Surface Cross-Country Conveyors: Lay following the natural terrain's undulations and curves, these conveyors span long distances, connecting mining and processing areas several kilometers apart.

Model Parameter Table

Model	Belt Width (mm)	Belt Speed (m/s)	Capacity (t/h)	Max. Inclination (Standard / Cleated)	Motor Power (kW)
ACS-500	500	1.0 - 1.6	40 - 80	≤18° / Up to 45°	4.0 - 11
ACS-650	650	1.2 - 2.0	80 - 150	≤18° / Up to 45°	5.5 - 22
ACS-800	800	1.2 - 2.0	150 - 300	≤18° / Up to 40°	11 - 45
ACS-1000	1000	1.6 - 2.5	300 - 600	≤16° / Up to 40°	30 - 75
ACS-1200	1200	1.6 - 2.5	500 - 1000	≤16° / Up to 35°	45 - 110
ACS-1400	1400	2.0 - 3.15	800 - 1600	≤15° / Up to 35°	75 - 220
ACS-1600	1600	2.0 - 4.0	1200 - 2500	≤15° / Custom Design	110 - 400+
ACS-2000	2000	2.5 - 4.0	2000 - 4000+	≤15° / Custom Design	200 - 800+

How much does an aggregate belt conveyor system cost?

As customized heavy equipment, the overall cost of an aggregate belt conveyor system is determined by the conveying distance, belt width, and optional components. Small mobile belt conveyors with a bandwidth of 650 mm and a length of 10 to 15 meters are priced between US$7,500 and US$16,500; medium-sized stationary conveyor lines with a bandwidth of 1000 mm and a length of 50 to 100 meters, including standard steel supports and basic drive, cost between US$27,500 and US$49,800; while large, long-distance, or heavy-duty systems with a bandwidth of over 1400 mm and a length exceeding 500 meters typically start at US$75,000 due to complex counterweight tensioning, high-power reducers, and control cabinets. The specific choice depends on the conveying requirements.

Aggregate Belt Conveyor System Manufacturer

As a source manufacturer of bulk material conveying machinery, Dahan Machinery provides services from initial layout design, construction drawing preparation, equipment processing and manufacturing to on-site installation guidance. We can also calculate a reasonable bandwidth and drive power configuration based on the material bulk density, required hourly tonnage, and site topography provided by the customer.In addition to manufacturing aggregate conveyor belt systems, we also produce various types of conveyor belts, including portable soil conveyors, aggregate lifting conveyors, concrete conveyor belt systems, rock conveyor belt systems, and sand and gravel conveyor belt systems, providing suitable belt conveyor systems for different countries and regions.

Aggregate Belt Conveyor System Applications

Aggregate belt conveyor systems, depending on their design configurations, undertake logistics transportation work in the following material handling and industries.

Sand and Gravel Aggregate Yards: Transport natural river sand, manufactured sand, and washed gravel from feeders to vibrating screens.

Open-Pit Quarries: Transport blasted limestone, granite, and basalt directly to primary jaw crushers.

Cement Plants: Transport raw materials such as gypsum, clinker, and clay from stockpiles to raw meal mills or rotary kilns.

Commercial Concrete Batching Plants: Elevate pre-graded aggregate to weighing hoppers above the mixing unit.

Earthwork and Excavation Engineering: Used for the removal of soil and excavated material during foundation pit excavation or tunnel boring.

Aggregate Belt Conveyor System Solutions

Faced with complex geographical environments and specific working conditions, the system offers the following engineering solutions.

Long-Distance Crossing Solutions: For crossing rivers, highways, or valleys, a spatial steel truss corridor is designed, equipped with a high-tension steel wire rope core belt, reducing the number of intermediate transfer stations.

Wet and Adhesive Material Cleaning Solutions: For fine sand or soil with high moisture content and easy adhesion, two hard alloy main sweepers are installed at the unloading end, and an empty section sweeper is added on the return section to prevent material from adhering to the rollers and causing belt deviation.

Steep Slope Space Constraint Solutions: In factory buildings with narrow sites where long slopes cannot be arranged, a large-angle sidewall belt conveyor is selected, utilizing a vertical lifting design to save ground space. In addition, if a closed vertical lifting system is required on site, our screw conveyor system can be used as an alternative for powder and fine aggregates.

Frequently Asked Questions about Aggregate Belt Conveyor Systems

Q: What causes aggregate belt misalignment?

A: It's usually caused by three factors: 1) Material not falling in the center, leading to uneven force on one side; 2) Sand or mud adhering to the surface of the idlers or redirecting rollers altering the local diameter; 3) The axes of the front and rear rollers are not parallel.

Q: How to select the right conveyor type when the manufactured sand has high moisture content?

A: High moisture content materials easily cause belt slippage or material carryover on the return trip. Anti-slip belts with a slightly textured surface should be selected, or the inclination angle of the trough idler group should be increased to 35 or 45 degrees, and high-elasticity polyurethane scraper cleaners should be installed.

Q: How is the motor power determined?

A: The motor power needs to be determined by performing mechanical balance calculations based on data such as conveying capacity, material lifting height, horizontal conveying distance, and belt running resistance, using a standard formula.

The aggregate belt conveyor system, through combinations of parameters such as belt width, belt speed, and idler type, can meet the diverse conveying requirements of manufactured sand, crushed stone, gravel, gypsum, clinker, slag, coal gangue, construction waste, tailings, limestone, basalt, granite, soil, slag, river pebbles, graded crushed stone, coarse sand, fine sand, gravel, and coal. This high degree of material adaptability and on-site matching makes it an indispensable basic equipment in the field of heavy industrial bulk material conveying.