Overview of Buried Scraper Conveyor Products:

The buried scraper conveyor series products are widely used in industries and departments such as metallurgy, building materials, power, chemical, cement, ports, docks, coal, mining, grain and oil, food, feed, etc. The buried scraper conveyor is a continuous transportation equipment that uses a moving scraper chain to transport bulk materials inside a closed giant cross-section shell; Due to the fact that the scraper chain is completely buried in the material during transportation, it is called a buried scraper conveyor. The conveyor has a simple structure, good sealing, easy installation and maintenance, and flexible process layout; It can not only transport horizontally, but also tilt or vertically; It can be used alone or in combination with multiple devices; Can add more materials and unload more materials. Due to the enclosed shell, it can significantly improve the working environment of workers and prevent environmental pollution when transporting large, toxic, explosive, and high-temperature materials. The buried scraper conveyor is a popular material conveying system equipment in metallurgy, mining, and thermal power plants.

Summary of Buried Scraper Conveyor Products:
During horizontal conveying, the buried scraper conveyor generates internal friction between materials due to the pressure of the scraper chain in the direction of movement and the weight of the material itself. This frictional force ensures a stable state between the material layers and is sufficient to overcome the external frictional force generated by the movement of the material in the machine slot, allowing the material to form a continuous overall flow and be transported.

During vertical lifting, the material is subjected to pressure from the scraper chain in the direction of movement, generating lateral pressure in the material and creating internal friction. At the same time, due to the continuous feeding of the lower horizontal section, the lower material successively exerts a pushing force on the upper material. This frictional and pushing force is sufficient to overcome the external frictional resistance generated by the movement of materials in the machine slot and the weight of the materials themselves, forming a continuous and integral material flow and being lifted.

Product features of buried scraper conveyor:
1. The buried scraper conveyor is commonly used for horizontal conveying of granular and powdery materials, and can also perform inclined conveying within a range of 150 ° angles;
2. The buried scraper conveyor has the characteristics of high overall service life, stable operation, small structural size, large conveying capacity, low energy consumption, and low material damage rate;
3. The structure of the buried scraper conveyor is reasonable, allowing for multiple feeding points. The movement speed of the scraper is driven by a reducer, ensuring smooth operation and low noise. On the basis of single point feeding and discharging, it can also be fed and discharged from multiple points. It has outstanding characteristics in conveying toxic, explosive, high-temperature, and easily flying materials, improving worker operating conditions, and reducing environmental pollution.

Technical parameters of buried scraper conveyor:

Outline diagram of buried scraper conveyor product:

Installation of buried scraper conveyor:

The installation of buried scraper conveyor requires the following work:

1) Positioning:
Firstly, determine the positions of the machine head and tail, and then determine the centerline of the scraper conveyor.
2) Laying the middle groove:
Lay the middle groove according to the determined centerline of the conveyor. If non-metallic trough boxes are used, the middle trough should be paved with bricks and precast cement boards, and then bonded with cast stone lining boards. When laying the cast stone lining board, attention should be paid to flatness, with as few joints as possible, and longitudinal gaps should be staggered to prevent the gaps from being ground into grooves during work.
The surface of the conveyor needs to be laid flat. If there are too many bends in the conveyor plane, it will inevitably cause uneven force on the two chains, accelerate the wear between the chains and the groove wall cast stone, and even cause chain jamming. The overlapping of each section of the groove should be smooth without steps. Due to the structural limitations of the groove itself, adjacent middle grooves should not deviate too much in the vertical direction. If the conveyor is laid unevenly, the transportation power consumption will increase. The accumulated coal or debris on the runway should be cleaned up.
3) Install the nose and tail:
There should be a certain amount of space left at the nose and tail of the aircraft for maintenance and repair. The centerline of the sprocket should be perpendicular to the centerline of the conveyor and kept horizontal.
4) Install scraper chain:
The scraper chain should be pre connected before installation, and the scraper should be evenly distributed in the chain. If there are two chains, choose equal lengths or assemble them according to the matching chains at the factory. The chain must not have any twisting phenomenon. The welding edge of the circular chain is facing upwards to prevent the chain from getting stuck with the sprocket.
5) Inspection and air freight transfer:
After the conveyor is installed, a comprehensive inspection should be conducted and the conveyor should be started. After 2 hours of air transportation, the main inspection is to check whether the driving device and scraper are running normally. At the same time, make each adjacent middle groove close together, tighten the chain again, and adjust the chain length.
During the first two weeks of operation of the scraper conveyor, special attention should be paid to the tightness of the chain. The inspection method is: if there is a driving device at the tail of the machine, jog the driving device. When there are two or more completely loose chain links on the upper chain of the tail sprocket, tighten or remove the chain to reduce the length of the chain links. If there is only a head drive device, the motor needs to be rotated in reverse to jog when there are two or more completely loose links on the upper chain at the head sprocket. It is also necessary to tighten or dismantle the chain to reduce the loop.
RMS type buried scraper conveyor
Used for conveying materials with a particle size of no more than 30mm (maximum particle size content less than 20%), granular, powdery, and small block materials with a ρ of 0.8~1.2t/m3. For hard materials (referring to materials that are not easily crushed), the maximum particle size (allowed to contain 10%) should not exceed 20mm.
The temperature of the conveyed material is 100-450 ℃. The instantaneous material temperature is allowed to reach 800 ℃.
Can be used for horizontal or upward inclined conveying (0~15 °), cannot be used for downward inclined conveying. For materials with high fluidity (such as pyrite slag), it is recommended to use horizontal conveying.

Note: According to user requirements, the chain speed can reach 0.08m/s

The buried scraper conveyor is mainly divided into the following types: 1. Horizontal buried scraper conveyor 2. Vertical buried scraper conveyor 3. Z-type buried scraper conveyor