Dust sliding structure used for cement kiln

Abstract

The invention relates to the technical field of dust sliding structures, and discloses a dust sliding structure used for a cement kiln. The dust sliding structure comprises a buffer bin, a first dustsliding pipe and a second dust sliding pipe. The first dust sliding pipe is arranged at the top of the buffer bin and communicates with the buffer bin. The included angle between the axis of the firstdust sliding pipe and the horizontal direction is larger than 55 degrees. The second dust sliding pipe is arranged at the bottom of the buffer bin and communicates with the buffer bin. The included angle between the axis of the second dust sliding pipe and the horizontal direction is larger than 55 degrees. Through the arrangement of the buffer bin, fallen dust is buffered in the buffer bin in the dust sliding process, and the situation that large impacting force is generated when dust falls down from upper air can be avoided. Through the arrangement, the dust sliding structure is suitable for aerial dust sliding, dust flowability is guaranteed, and meanwhile the situation that large impacting force is generated when dust falls down from upper air can be avoided.

Description

technical field [0001] The invention relates to the technical field of ash-moving structures, in particular to a kind of ash-moving structure used in cement kilns. Background technique [0002] At present, after the "high temperature electrostatic precipitator + SCR denitrification" process route is adopted for the denitrification of cement kiln flue gas, according to the characteristics of cement process layout, the high temperature electrostatic precipitator and denitrification reactor are arranged at high altitude, usually at a height of more than 50 meters, and the high temperature electrostatic precipitator The dust collected by the denitrification reactor and the denitrification reactor needs to be transported from high altitude to the ground and finally transported to the user's designated location. Therefore need to arrange the ash slipping structure that is applicable to high altitude. [0003] However, for the conventional cement kiln ash conveying structure, the ...

AI Technical Summary

Problems solved by technology

This kind of traditional ash conveying pipe cannot be applied to high altitudes, because the impact force generated by the accelerated movement of dust falling from high altitude will damage the downstream ash conveying equipment, resulting in the failure of the ash conveying system to work normally

If the angle between the ash conveying pipe and the horizontal plane is reduced to eliminate the impact of dust on the ash conveying equipment, the fluidity of the dust will become poor, and the dust will be deposited in the ash conveying pipe to cause ash blockage, which will bring safety hazards to the dust removal equipment, such as Severe dust accumulation leads to problems such as falling of the ash hopper

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