China's corrugated sidewall belt conveyor adopts centralized negative pressure suction bag to remove dust. The dust clearing system uses dust collecting cover, conveying pipe, bag filter, induced draft fan and chimney. Its disadvantage is large investment; low dust collection rate; the horizontal pipe is easy to be blocked, which affects the collection rate. large air extraction volume and high operating cost; large area of dust collector, induced draft fan and chimney; the pipeline is complex, the main pipeline diameter is large, the branch pipe is many, the pipeline is long. There are many valves in the system, and the balance and adjustment of air volume in the system are complicated. It is necessary to set up full-time operation and maintenance personnel and dust transport equipment. The biggest difficulty of dust collecting and conveying lies in corrugated sidewall belt conveyor. The belt guide groove is equipped with a cone cover that is integrated with the dust conveying pipeline. In order to avoid dust overflow traps, the guide tank must be in a negative pressure state. In order to avoid dust deposition in the pipeline, large air volume must be used for transportation. Both factors require strong power. Once dust is deposited in the pipeline, the exhaust efficiency will be greatly reduced, and the negative pressure state in the trap will be destroyed. Dust will spill out of the trap hood and the trap efficiency will be greatly reduced.Adopt the large-angle belt of cloth bag dust removal, after running for one or two years, the dust removal pipe will be blocked, the dust clearing system will be broken down, and dust will float in the air. On the other hand, a certain amount of material and dust are deposited between the guide trough and the corrugated side. When the belt enters the dip portion, the accumulated material and dust slide off the base belt base of the belt, causing secondary dust pollution.
Dispersed dust is corrugated sidewall belt conveyor dust source location relatively concentrated or dust source point on the same production section collection form a dust clearing system, shorter system pipeline, pipe diameter is small, convenient arrangement, can ask off running, chain can dust removal facilities and equipment, no pollution, dust removal system can stop running, dust properties of single easily recycled, dust removal equipment scattered in the dust source distribution near or workshop, production operators can management of operation. However, this dust clearing method has a large number of equipment and occupies a certain space. Therefore, it needs to set up ash discharging device and the equipment investment is high. The biggest difficulty of dispersed dust removal still lies in dust collection and transportation. In order to effectively exhaust, the dust removal system still needs to maintain negative pressure and run with large air volume. Although the dust collection pipe is short, dust deposition in the pipe will still affect the dust collection capacity of the dust collection system.
In order to solve the above problems, a dust clearing system for corrugated sidewall belt conveyor be used. It is suitable for the flat section of the corrugated sidewall belt conveyor, the bandwidth is 500~ 1200 mm, the belt speed is 0.8~3.15 m/s, and the material drop is less than 10 m when the material is being cut. It is a loose non-stick material. The micro-power dust removal technology can solve the problem of dust collection and avoid secondary pollution caused by material and dust deposition on the belt bottom plate. The dust collection rate is over 95%, the treatment cost is low, the investment is small, the land is not occupied, and the dust collector life long and short construction period.