Compound fertilizer

Tongli high-quality scraper conveyor machine

Scraper conveyor is a mechanical equipment used to continuously transport materials. It is widely used in mining, coal mines, construction and chemical industries. Its main structure consists of the nose, middle part and tail. The machine head includes the machine head frame, electric motor, hydraulic coupling, reducer and sprocket; the middle part is composed of transition groove, middle groove, chain and scraper; the tail is the return device of the scraper chain. The equipment has a simple structure and stable operation, and is suitable for conveying powdery, granular or block materials, especially in horizontal or inclined conveying systems.

tongli scraper conveyor system for npk compound fertilizer production line main picture

TONGLI Scraper conveyor

A MACHINE YOU CAN DEPEND ON!

The scraper conveyor adopts high-strength steel and precision welding, with excellent wear resistance and impact resistance. It supports reverse operation, which is convenient for maintenance and adjustment of material flow direction, and allows flexible setting of feed and discharge ports, optimizes material distribution, and adapts to complex production environments.

High-strength materials and processes

The scraper conveyor has the function of reversible operation. This design allows the equipment to reverse operation when encountering a bottom chain accident or requiring maintenance, and re-convey the material back to the origin or adjust the conveying direction.



Reverse operation function

The scraper conveyor adopts high-strength steel and precision welding technology, which has excellent wear resistance and impact resistance. Its sturdy structure can effectively resist the impact, collision, smashing and compression of coal, gangue and other materials, ensuring the long-term stable operation of the equipment in harsh environments.

Flexible material distribution

The scraper conveyor allows the feed or discharge port to be set at any position of the conveying path, which facilitates the flexible distribution and adjustment of materials. Users can add or remove materials at different positions as needed, thereby optimizing material flow, reducing energy waste, and simplifying the production process. This function is particularly suitable for complex or changeable production environments, improving the adaptability and ease of operation of the equipment.

ModelZJTLGB200ZJTLGB270ZJTLGB350ZJTLGB410ZJTLGB500
Slot Width (mm)200270350410500
Conveying Capacity (m³/h)10 ~ 3020 ~ 6035 ~ 10050 ~ 13080 ~ 200
Chain Speed (m/min)10 ~ 3010 ~ 3012 ~ 3012 ~ 2512 ~ 30
Chain Pitch (mm)125185200200300
Conveying Distance (m)8 ~ 508 ~ 508 ~ 508 ~ 508 ~ 50
Conveying Angle (°)≤15°≤15°≤15°≤15°≤15°
Motor Power (KW)2.2 ~ 7.503 ~ 154 ~ 224 ~ 305.5 ~ 45
Applicable Particle Size (mm)<5<7<9<11<25
Applicable Humidity (%)≤5≤5≤5≤5≤5
Applicable Temperature (℃)≤150≤150≤150≤150≤150

FAQ

1. How does a scraper conveyor work?

A scraper conveyor is a device that uses scrapers to move on a conveyor chain to transport materials. Its working principle is to transport materials from the feed end to the discharge end by moving scrapers mounted on chains in a closed conveying trough.

The material is continuously transported under the push of the scraper, which is suitable for handling viscous and wet materials such as coal, ore, mud, etc. Scraper conveyors can be horizontal, inclined or vertical, depending on the installation angle and requirements.

The design of the equipment enables it to handle a variety of materials and maintain stable operation in harsh operating environments.

2. What are the design principles of a scraper conveyor?

When tongli designing a scraper conveyor, multiple points are considered comprehensively. First, the characteristics of the conveyed material, including density, particle size, humidity, etc., to adapt the appropriate scraper material and type.

Secondly, design the size and shape of the conveying trough to ensure that it can accommodate the required amount of material and avoid blockage. It is also necessary to select the appropriate chain type and drive system to ensure stable operation and sufficient conveying capacity of the equipment. Consider the installation angle of the equipment to ensure that it can meet the horizontal, inclined or vertical conveying requirements.

In addition, the design should consider the convenience of equipment maintenance and cleaning, and set up appropriate inspection ports and cleaning schemes.

3. What application scenarios are scraper conveyors suitable for?

Scraper conveyors are suitable for various application scenarios that require the transportation of granular, block or sticky materials. Common applications include coal mining, metallurgy, building materials and fertilizer industries, for conveying coal, ore, stone, etc.

In addition, it is also suitable for slurry transportation in sewage treatment plants, grain transportation in grain processing, and fertilizer and chemical raw material transportation in chemical plants. The closed design of the scraper conveyor can effectively prevent the leakage and contamination of materials, and is suitable for use in harsh or special environments.

According to the characteristics of the material and the transportation requirements, it can be designed for horizontal, inclined or vertical transportation.

4.Comparison of scraper conveyors with other conveyors

Scraper conveyor: suitable for powdery, granular and block materials such as ore, coal, sand and gravel. Especially suitable for handling highly abrasive and highly corrosive materials. It can handle a large material flow rate and is suitable for large batches and long distance transportation. It has moderate energy consumption and high efficiency, especially when handling heavy materials.

Belt conveyor: suitable for granular, powdery and small pieces of materials, such as coal, grain, etc., but not suitable for very coarse or extremely heavy materials. Maintenance is relatively complicated, and the tension and wear of the conveyor belt need to be checked regularly. The energy consumption is relatively low, suitable for continuous conveying of most light and medium-sized materials.

Screw conveyor: suitable for powdery and granular materials, such as sand, fertilizer, etc., but the processing effect of large or high-viscosity materials is poor. The spiral blades and bearings need to be maintained regularly, and they are prone to clogging and wear. The energy consumption is high, especially when handling high-viscosity materials.

5. How to solve the blockage problem of scraper conveyor?

The blockage problem of scraper conveyor is often caused by material accumulation, unreasonable conveying trough design or equipment failure. First of all, the material residue in the conveying trough should be checked and cleaned regularly to avoid material accumulation in the trough. Check the status of the scraper and chain to ensure that there is no wear or damage to prevent blockage caused by inappropriate scraper.

For sticky materials, heating devices or vibration devices can be used to reduce material adhesion. Optimizing the design of the conveyor trough, such as increasing the discharge port or adjusting the angle in the trough, can also help reduce blockages. Installing a blockage detection device will give an alarm in time once a blockage occurs, helping to quickly deal with the problem.

6. What are the considerations for material selection for scraper conveyors?

When selecting materials for scraper conveyors, several factors need to be considered. First, choose wear-resistant materials to cope with the wear of scrapers and chains during long-term operation.

For example, scrapers are often made of wear-resistant alloy steel or engineering plastics. Secondly, for conveyors that handle corrosive materials, corrosion-resistant materials such as stainless steel or coatings should be selected to extend the service life of the equipment. The temperature of the material is also an important consideration in selecting materials, and high or low temperature resistant materials are required to adapt to the working environment.

According to the characteristics of the material and the working environment, choosing the right materials and coatings can improve the durability and performance of the equipment and ensure stable operation.

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APPLICATION

Granular Fertilizer

Granular Fertilizer

Scraper conveyors efficiently transport granular fertilizers, providing a smooth and consistent flow. This ensures minimal spillage or breakage, enhancing production efficiency in fertilizer plants.

Powdered Fertilizer

Powdered Fertilizer

Ideal for moving fine, powdered fertilizers, scraper conveyors minimize clogging and ensure smooth material handling. They are designed for continuous operation in fertilizer processing and packaging lines.

Compost

Compost

Scraper conveyors handle organic compost with ease, providing reliable transport in agricultural production facilities. Their durable construction ensures long-lasting performance even with moist, bulky materials.

Limestone

Limestone

These conveyors are perfect for transporting crushed limestone, a key material in cement and fertilizer production. They offer minimal wear and tear, providing reliable and continuous movement in demanding industrial environments.

Coal

Coal

Scraper conveyors efficiently move coal, whether for energy production or heavy industries. Their robust design ensures smooth material handling over long distances and through various production stages.

Sand

Sand

Designed to transport sand, scraper conveyors provide efficient and dust-free movement. Whether in construction, mining, or manufacturing, they help reduce maintenance costs while maintaining a continuous workflow.

Gravel

Gravel

Ideal for conveying gravel and other coarse aggregates, scraper conveyors are designed to handle bulk materials in construction operations. Their strength and durability ensure minimal maintenance and increased operational efficiency.

Pellets

Pellets

Perfect for conveying pellets used in fertilizer or animal feed production, scraper conveyors ensure smooth and steady material flow, reducing breakage or spillage and improving overall productivity in high-volume processing lines.

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