Comparative Analysis of the Cost of Pipe Belt Conver and Fully Enclosed Corridor Belt Conver

On April 28, 2019, the Ministry of Ecology and Environment and five other departments jointly issued their opinions on promoting the implementation of ultra-low emissions in the steel industry. The summary of the opinions on material transportation:

2. Material transportation. Powdery materials such as lime, dedusting ash, desulfurization ash and fly ash shall be transported in a closed manner by means of a tubular belt conveyor, pneumatic conveying equipment and tanker. Iron concentrate, coal, coke, sinter, pellet, limestone, dolomite, ferroalloy, blast furnace slag, steel slag, desulfurization gypsum and other lumpy or sticky wet materials shall be transported in a closed manner by tubular belt conveyor or belt corridor; if it is really necessary to transport by automobile, it shall be transported in a closed carriage or covered tightly, and dust suppression measures such as humidification shall be taken during loading and unloading. Material conveying and blanking points shall be equipped with gas collecting hoods and dust removal facilities, or dust suppression measures such as spraying shall be taken. Wheel and body washing facilities shall be provided at the stockyard exit. The roads in the plant area shall be hardened, and cleaning, watering and other measures shall be taken to keep them clean.

The conveying of non-powdery materials strictly requires the use of a pipe belt conveyor or fully sealed belt corridor. The weight and cost of these two kinds of conveying forms are compared and analyzed as follows, which can be used as a reference for design-related decision-making.

　　

1. Comparison Condition Description

1. Conveying materials: coal, specific gravity 0.85, transportation capacity 250 t/h, block size below 80mm, normal temperature;

2. The belt speed of the pipe belt machine is 2.5mm, and the pipe diameter is 250mm; the belt speed of the groove belt conveyor is 1.6mm, and the bandwidth is 800mm;

3. The pipe belt conveyor and the belt conveyor take the walkways on both sides, and the width of the walkways is 800mm;

4. Pipe belt conveyor and belt conveyor are of overhead structure with a uniform span of 24m;

5. The spacing between the upper and lower idlers of the straight section of the pipe belt conveyor is 1.6m, the spacing between the upper idlers of the belt conveyor is 1.2m, and the spacing between the lower idlers is 3 m;

6. The total length of the conveyor shall be 200 meters, considering the selection and driving part of the belt. The power of the groove belt is 37kw, and the power of the tube belt conveyor is 75kw;