Dedusting delivery system and method for bulk materials

Abstract

The invention provides a dedusting delivery system and method for bulk materials. The dedusting delivery system comprises at least one material conveying unit, wherein all the material conveying units are arranged in sequence along a material conveying path. Each material conveying unit comprises a first conveyor, a second conveyor, a closed transfer station, a dust extraction mechanism and a forming machine, wherein the first conveyor is provided with a first feed end and a first discharge end; the second conveyor is communicated with the first conveyor and is provided with a second feed end used for receiving the materials from the first conveyor and a second discharge end used for discharging the materials out of the material conveying unit; the first discharge end of the first conveyor and the second feed end of the second conveyor extend into the transfer station, and the first discharge end transfers the materials to the second feed end of the second conveyor in the transfer station; the dust extraction mechanism is communicated with the inside of the transfer station so as to draw raised material dust out of the transfer station; the forming machine is communicated with the dust extraction mechanism so as to receive and form the dust extracted by the dust extraction mechanism into profile materials, and the forming machine is communicated with the second conveyor or an independent profile material conveying device outside the transfer station so as to further convey the profile materials.

Description

technical field [0001] The invention relates to the technical field of material conveying, in particular to a dust removal conveying system and a conveying method for bulk materials. Background technique [0002] Bulk materials, especially powdered materials, especially coal, are always accompanied by dust during the transportation process. Taking lignite as an example, my country is rich in lignite resources. In order to make rational use of lignite energy, low-rank coal needs to be dried. However, during the lignite drying process, a large amount of pulverized coal with a particle size of less than 1mm will be produced. These pulverized coals are light in weight and have good activity. During the transportation process, especially in the transfer station, it is easy to cause serious dust in the transportation system. A large amount of pulverized coal accumulates in coal transportation corridors and transfer stations, which reduces visibility, seriously endangers human heal...

AI Technical Summary

Problems solved by technology

[0003] 1. It is not suitable for medium with high inlet concentration, and usually requires the inlet concentration not to be higher than 10mg / m 3 , the handling air volume is not higher than 100000m 3 / h

[0004] 2. Not suitable for dust-prone industries such as large-scale lignite drying

[0005] 3. Most of the existing dust removal systems discharge the collected pulverized coal to the coal conveying device again. During the discharge process, the dust will be raised again, and when passing through the next transfer station, the pulverized coal will be raised again. start, need to repeat collection

[0006] 4. Most of the dust collectors in the existing coal conveying system use mechanical rapping to remove dust, which has a poor effect. Coal dust will be adsorbed on the filter bag for a long time, and there are safety hazards such as spontaneous combustion and deflagration

Therefore, it is difficult to completely solve the dust problem by using the traditional existing dust collector system in the coal transportation system

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