Buried Scraper Conveyor, Buried Scraper Slag Conveyor

MZ series scraper conveyor is a kind of conveying equipments which can continously convey materials by the moving chains in closed shell with Z shape, the pressure which comes from chains in transportation direction to the materials and the action which comes from the materials themselves cause internal friction, this friction ensures the stable situation between material layers, and it can overcome external frictional resistance which caused by moving materials in the trough and make materials transport as a whole fluid.
MZ series scraper conveyor Specifications
1. Scraper conveyor with forged links.                                                    
2. The whole closed shell,  environmental protection structure                                                                            
3. A horizontal section (less than 5 meters)add a lifting section (less than 20 meters),then add a horizontal section(less than 30 meters)transport of bulk material with 90°.4. Lifting height is up to 20m.                           
4.We are the only nation standard drafter and maker of scraper conveyor.
Buried Scraper Conveyor

specification	MS16	MS20	MS25	MS32	MS40
Trough width B(mm)	160	200	250	320	400
Trough height H(mm)	160	200	250	320	360
Chain pitch(mm)	100	125	160	200	200
Conveying capacity(m 3 /h)	11-25	17-39	23-54	48-88	67-124
Max length of conveyor(mm)	80
Inclining installation angle	0°≤  α   ≤15°

The series conveyor is unfit for conveying matreial with special property. As such: High temperature, poisonous, inflammable and explosive, easy to wear, large adhesivity and suspensibility, good mobility, hard and large fragility but unwilling to broken materials. Enmasse conveyor which is needed to use by these materials may be designed to: High temperature resistance, corrosion resistancea, abrasion resistance, full air tightness and explosion protection, our company can customed and produced for user.

Type	MS12	MS16	MS20	MS25	MS32	MS40	MS50	MS63
Machineslot width(mm)	120	160	200	250	320	400	500	630
Loading depth(mm)	120	160	200	250	320	400	500	630
Capacity(m3/h)	7-12	11-25	17-39	23-54	48-88	67-124	105-192	166-300
Maximum transport distance(m)	50	50	50	50	50	50	50	50
Chain scraper
Type	DT	DT	DT	DT(S30)	S30	Z30	Z30	Z30
Allowable load(KN)	15	17	26	35(45)	45	75	100	2× 75
Weight(kg/m)	5.5	5.62	7.2	12.2(15.63)	15.63	23.24	25.34	47.6

Buried Scraper Conveyor, Buried Scraper Slag Conveyor

The Buried Scraper Conveyor is a heavy-duty enclosed conveying machine designed for continuous transportation of ash, slag, coal, clinker, powder, granular materials, and other bulk materials. Also known as a Buried Scraper Slag Conveyor, buried drag conveyor, or scraper chain conveyor, this equipment uses a continuously moving scraper chain to push material through an enclosed conveyor trough.

Buried scraper conveyors are particularly useful in applications where materials need to be transported safely and continuously through a compact, enclosed conveying system. They are widely used in power plants, cement plants, metallurgy, mining, coal processing, waste treatment, and other industrial material handling applications.

The enclosed structure helps control dust, reduce material spillage, and protect the conveying components from the surrounding environment. Depending on the material characteristics and system requirements, the conveyor can be configured with different chain types, scraper designs, wear-resistant liners, drive systems, and discharge arrangements.

As an experienced Buried Scraper Conveyor manufacturer and supplier, we can provide standard and customized conveying equipment for individual machines as well as complete industrial material handling systems.

What Is a Buried Scraper Conveyor?

A Buried Scraper Conveyor is a type of continuous chain conveyor in which a scraper chain moves through an enclosed trough or casing. The scrapers attached to the chain push bulk materials forward from the feeding point to the discharge point.

The term "buried" refers to the conveying principle in which the scraper flights move through a material layer inside the conveyor. Instead of lifting the material individually, the moving chain and scraper assembly continuously push the bulk material along the conveyor.

This operating principle makes the equipment suitable for materials that are dusty, granular, abrasive, or difficult to handle with conventional belt conveyors.

A buried scraper conveyor can be installed horizontally or, depending on the design and material characteristics, at a controlled inclination.

Main Components

A typical Buried Scraper Slag Conveyor includes several important components:

Conveyor Trough
Scraper Chain
Scraper Flights
Drive Sprocket
Tail Sprocket
Drive Motor
Gear Reducer
Chain Tensioning Device
Inlet Chute
Discharge Outlet
Wear-Resistant Liner
Bearings and Shafts
Inspection Covers

The conveyor trough forms the main conveying channel. The scraper chain runs continuously through the trough, while scraper flights push the material toward the discharge end.

For abrasive materials such as bottom ash, slag, clinker, minerals, and coal ash, wear-resistant liners and reinforced chain components can be selected to improve service life.

How Does a Buried Scraper Conveyor Work?

The working principle is based on continuous mechanical scraping.

Bulk material enters the conveyor through an inlet or feeding chute. The drive motor transfers power through the reducer to the drive sprocket. The sprocket engages with the scraper chain and causes the chain to circulate continuously.

Scraper flights attached to the chain move through the material layer and push the material along the bottom of the conveyor trough.

As the material reaches the discharge section, it exits through the outlet and can then enter another conveyor, storage hopper, ash processing system, crusher, elevator, or other downstream equipment.

Because the conveyor is enclosed, the system can provide a controlled material handling route while reducing dust and material loss compared with open conveying arrangements.

Buried Scraper Slag Conveyor for Power Plants

One of the major applications of buried scraper conveyors is slag and ash handling in power plants.

Coal-fired power generation produces bottom ash, slag, fly ash, and other solid residues that must be collected and transported. A properly configured buried scraper conveyor can transport bottom ash and slag from collection points to storage, cooling, crushing, dewatering, or further processing equipment.

The enclosed structure is particularly useful for dusty ash-handling environments.

Depending on the operating conditions, the conveyor can be customized with high-temperature-resistant components, wear-resistant materials, heavy-duty chains, and suitable sealing structures.

Applications
Power Plants

Buried scraper conveyors are widely applicable to bottom ash, slag, coal ash, and other solid residue handling systems.

Cement Plants

The equipment can transport clinker, cement raw materials, dust, limestone, gypsum, and other bulk materials between processing stages.

Mining and Mineral Processing

Heavy-duty scraper conveyors can handle ore, mineral materials, coal, tailings, and other abrasive bulk materials.

Coal Handling

Coal and coal-related materials can be transported through enclosed conveyor systems to reduce dust and material spillage.

Metallurgy

The equipment can be configured for slag and other industrial residues generated during metallurgical processes.

Waste and Industrial Residue Handling

Depending on the material properties, buried scraper conveyors can be integrated into systems for industrial waste, ash, residue, and other solid bulk materials.

Key Advantages
Enclosed Conveying

The enclosed trough helps reduce dust emissions and material spillage, making the system suitable for dusty industrial environments.

Heavy-Duty Chain Drive

The chain-driven structure provides strong mechanical conveying capability for heavy and abrasive materials.

Excellent for Ash and Slag

The scraper conveying principle is well suited to bottom ash, slag, coal ash, clinker, and other dense bulk materials.

Compact Structure

The conveyor can provide an efficient conveying route without requiring the large open installation area sometimes associated with long belt conveyor systems.

Continuous Operation

The continuous chain movement allows material to be transported steadily as part of an automated production or ash-handling process.

Wear-Resistant Configuration

For abrasive materials, the conveyor can be equipped with wear-resistant trough liners, scraper components, chains, and other reinforced parts.

Flexible System Integration

The equipment can connect with hoppers, feeders, crushers, ash coolers, storage systems, elevators, belt conveyors, screw conveyors, and other material handling equipment.

How to Select a Buried Scraper Conveyor

Selecting the correct conveyor requires detailed consideration of the material and operating conditions.

First, identify the material type and its characteristics. Important parameters include bulk density, particle size, moisture content, temperature, abrasiveness, and flowability.

Next, determine the required conveying capacity. Capacity is normally specified in tons per hour or another appropriate unit.

The required conveying length and installation layout should also be established. Conveyor length affects chain selection, drive power, tensioning, and structural configuration.

For slag and bottom ash applications, material temperature and abrasiveness are especially important. High-temperature or highly abrasive materials may require specialized chain components and wear-resistant liners.

The operating environment should also be considered. Outdoor systems, dusty areas, high-temperature zones, and corrosive environments may require additional protection.

Maintenance and Safety

Regular inspection is important for maintaining reliable conveyor operation.

Operators should check the scraper chain, flights, sprockets, bearings, reducer, motor, tensioning system, and conveyor trough at scheduled intervals. Wear components should be replaced when they reach their service limits.

Chain tension should remain within the manufacturer's recommended range. Excessive tension can increase mechanical loading, while insufficient tension can cause unstable chain operation.

Material buildup should be removed from inspection areas and discharge sections when necessary.

Before inspection, cleaning, lubrication, or repair, the conveyor should be completely stopped and isolated from its power source according to appropriate industrial safety procedures.

OEM and Custom Buried Scraper Conveyor

Different industries have different material handling requirements. We provide OEM and customized Buried Scraper Conveyor solutions according to customer specifications.

Customization can include conveyor length, trough dimensions, chain type, scraper configuration, drive power, discharge arrangement, wear-resistant lining, sealing structure, inlet position, outlet position, and installation configuration.

For power plant ash handling, we can configure the equipment according to bottom ash temperature, particle size, conveying capacity, and system layout.

For mining, cement, and metallurgy applications, wear resistance and heavy-duty construction can be selected according to the abrasiveness and density of the conveyed material.

Why Choose Us?
Industrial Conveyor Manufacturing: We provide heavy-duty conveying equipment for demanding industrial applications.
Custom Engineering: Conveyor dimensions, chain systems, drives, and discharge arrangements can be customized.
Ash and Slag Handling Experience: Our equipment can be configured for bottom ash, slag, coal ash, clinker, and other difficult bulk materials.
Wear-Resistant Options: Reinforced chains, scraper flights, and wear-resistant liners are available for abrasive materials.
Complete Material Handling Solutions: Conveyors can be integrated with feeders, hoppers, crushers, elevators, silos, and other equipment.
OEM Service: Customized specifications and configurations are available for distributors, contractors, and industrial end users.
B2B Export Support: We provide technical communication and equipment configuration support for international industrial projects.
FAQs
1. What is a Buried Scraper Conveyor?

A Buried Scraper Conveyor is an enclosed chain conveyor that uses scraper flights to continuously push bulk materials through a conveyor trough.

2. What is a Buried Scraper Slag Conveyor used for?

It is commonly used to transport bottom ash, slag, coal ash, clinker, minerals, and other bulk materials in industrial handling systems.

3. Can it handle bottom ash from power plants?

Yes. Properly configured buried scraper conveyors can be used for bottom ash and slag handling in power generation facilities.

4. Can a Buried Scraper Conveyor handle hot materials?

Yes, specialized configurations can be designed for elevated-temperature materials. Material temperature should be provided when selecting the equipment.

5. Is it suitable for abrasive materials?

Yes. Wear-resistant liners, chains, scraper flights, and other reinforced components can be selected for abrasive materials such as slag, clinker, and minerals.

6. What is the difference between a scraper conveyor and a belt conveyor?

A scraper conveyor uses a chain and scraper flights to push material through a trough, while a belt conveyor transports material on a continuous flexible belt.

7. Can the conveyor be enclosed?

Yes. An enclosed structure is a common configuration and helps reduce dust, spillage, and external contamination.

8. Can the conveyor length be customized?

Yes. Conveyor length, width, chain specifications, drive configuration, inlet, and discharge positions can be customized.

9. Can it be integrated with an ash handling system?

Yes. It can be connected with ash hoppers, crushers, cooling systems, elevators, belt conveyors, screw conveyors, storage equipment, and other downstream machinery.

10. Do you provide OEM Buried Scraper Conveyor equipment?

Yes. We provide OEM and custom solutions based on material characteristics, capacity, conveying distance, installation conditions, and customer requirements.

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