Cement raw meal conveying system

Abstract

The invention discloses a cement raw meal conveying system, which comprises a homogenization silo, two hopper type lifting machines, a raw meal homogenization measuring cabin, a speed regulating and quantitative feeding machine, an impeller feeding machine, a steel wire twisted lifting machine, an electric equal tee valve and a spiral conveyor. The system has the advantages that by adopting a double-hopper lifting machine to lift raw meal, the capability of homogenization is improved, a spiral stirring device and a load sensor are additionally mounted on a raw meal cabin, the phenomena of a full cabin and the blockage of conveying pipelines are eliminated, the homogenization function on the raw meal is improved again, and the homogenization degree of the raw meal is improved; after the system is used, the problem of fluctuation in raw meal ingredients is thoroughly solved, and the quality of ripe meal is greatly promoted; and the overall raw meal conveying system forms a self-circulation system, once material blockage or a fault occurs in a preheater, raw meal in the conveying device can be timely circulated back to the raw meal homogenization silo, and as long as the position of the homogenization silo premits, the raw meal preparation system is not required to be shut down for long due to the fault of the preheater.

Description

Technical field: [0001] The invention relates to a cement raw material conveying system, which belongs to the field of cement clinker production. Background technique: [0002] In the existing cement raw meal production process, the homogenization storage capacity is small and the homogenization capacity is weak. The homogenization storage is lifted by a single bucket, resulting in poor homogenization effect of the raw meal entering the preheater and large fluctuations in the composition of the raw meal. Large, causing great difficulties for the subsequent calcination of clinker. However, to adopt the scheme of transforming the raw material homogenization warehouse separately, the investment cost is relatively large, and the transformation period is relatively long. The homogenized raw meal enters the raw meal bin, and then directly feeds the preheater through the air lift pump. There is no metering device in the raw meal bin, so the amount of raw meal in the bin cannot be ...

AI Technical Summary

Problems solved by technology

[0002] In the existing cement raw meal production process, the homogenization storage capacity is small and the homogenization capacity is weak. The homogenization storage is lifted by a single bucket, resulting in poor homogenization effect of the raw meal entering the preheater and large fluctuations in raw meal composition. Large, causing great difficulties for subsequent calcination of clinker

However, it is necessary to adopt the scheme of separately transforming the raw meal homogenization warehouse, which requires a large investment cost and a long transformation period

The homogenized raw meal enters the raw meal bin, and then directly feeds the preheater through the air lift pump. The raw meal bin has no metering device, so the amount of raw meal in the bin cannot be known in time, and it is easy to cause The phenomenon of full warehouse will block the conveying pipeline above the raw material bin in serious cases; the pump body of the air lift pump is tall, takes up a lot of space, and consumes a lot of power. The lifting capacity of the air lift pump is limited, which seriously restricts the output of the entire production system, resulting in The output is low; and when the air lift pump is used, once the preheater part is blocked and the equipment fails to continue feeding, the material being lifted will suddenly fall from the lifting pipe, causing the material to accumulate under the lifting pipe , It takes a lot of time and manpower to dredge. In severe cases, the material will escape from the lifting pipe, causing a lot of dust and damage to the motor of the lifting pump.

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