Overview of the buried scraper conveyor: The buried scraper conveyor is a continuous conveying of powder, small particles, small blocks and other bulk materials in a closed rectangular cross-section housing by means of a moving scraper chain. device. Because when conveying materials, the scraper chain is completely buried in
The buried scraper conveyor is a continuous conveying device for conveying powder, small particles, small blocks and other bulk materials in a closed rectangular cross-section housing by means of a moving scraper chain.Because the scraper chain is completely buried in the material when conveying the material, it is called "buried scraper conveyor".
Working principle of buried scraper conveyor:
When the buried scraper conveyor is transported horizontally, the material is subject to the pressure of the scraper chain in the direction of movement and the weight of the material itself, which generates internal friction between the materials.This frictional force ensures a stable state between the material layers, and is sufficient to overcome the external frictional force caused by the material moving in the machine slot, so that the material forms a continuous and integrated material flow and is transported. When the buried scraper conveyor is lifted vertically, the material is subjected to the pressure of the scraper chain in the moving direction, which generates lateral pressure in the material, which forms the internal friction of the material.At the same time, due to the continuous feeding of the lower horizontal section, the lower material successively produces a pushing force on the upper material.This frictional force and pushing force are sufficient to overcome the external frictional resistance caused by the material moving in the machine slot and the weight of the material itself, so that the material forms a continuous and integrated material flow and is promoted.
Application range of buried scraper conveyor:
Examples of materials that MS type buried scraper conveyor can transport: coal powder, crushed coal, soot, carbon black, ammonium bicarbonate, pyrite powder, ammonium chloride, copper concentrate powder, alumina powder, gypsum powder, limestone Powder, soda powder, urea, activated carbon, sodium chloride, calcium silicate, asbestos powder, synthetic resin, rubber powder, calcium carbide, clay, synthetic fertilizers, powdered pesticides, barium sulfate, ammonium sulfate, soda ash, powdered medicine, Wheat, soybean, rice, sugar, starch, lignin, wood chips, sawdust, polyvinyl alcohol synthetic detergent, fly ash phosphate fertilizer, etc. The general-purpose buried scraper conveyor is not suitable for conveying high temperature, toxic, explosive, flammable, highly abrasive, highly corrosive, highly adhesive, highly suspending, and highly fluid. Good, hard and brittle materials that do not want to be broken.When materials with these characteristics require the use of a buried scraper conveyor, they can be designed as special models such as high temperature resistance, corrosion resistance, wear resistance, full air-tight and explosion-proof. Our company can customize production for customers .
Main features of buried scraper conveyor:
The model produced by our company is a general-purpose buried scraper conveyor, which has a simple structure, light weight, small size, good sealing, and convenient installation and maintenance.It can not only convey horizontally, but also tilt and vertically; not only single machine, but also can be combined and arranged in series; it can feed at multiple points and discharge at multiple points. The process layout is more flexible.Due to the closed casing, the working conditions can be significantly improved and environmental pollution can be prevented when conveying materials.
Buried scraper conveyor classification:
General-purpose buried scraper conveyors require the following materials to be conveyed:
1. Material bulk density: γ = 0.2 ~ 1.8t / m3;
2. Material temperature: t <100 ° C;
3. Moisture content: For general materials, it is not allowed to make the materials difficult to loosen after being kneaded by hand; for the increase of moisture content, it will increase the adhesion and compaction, and cannot make the materials adhere to the scraper seriously.
Granularity: The granularity of the material is related to its hardness. If the granularity is too large, it is not suitable for conveying.The requirements for material particle size are shown in the following table:
Power range (kw)
Direct transmission with elastic coupling
2.2 ～ 37
380V at power ≤200kw 6000V at power ≥220kw
Y series motor plus fluid coupling
45 ～ 315
Electric drum direct drive
2.2 ～ 55
220 ～ 800
The general-purpose buried scraper conveyor is not suitable for conveying high temperature, toxic, explosive, flammable, highly abrasive, highly corrosive, highly adhesive, highly suspending, and highly fluid. Good, hard and brittle materials that do not want to be broken. When materials with these characteristics need to use a buried scraper conveyor, they can be designed as: high temperature resistance, corrosion resistance, wear resistance, full airtight And explosion-proof models. Horizontal type buried scraper conveyor is divided into normal type and large inclined type. The installation angle of ordinary type is 0 ° ≤α≤15 °, and the installation angle of large inclined type is 15 ° <α <30 °.
安装尺寸表(mm): Installation dimension table of buried scraper conveyor (mm):