Quick lime hydrator

Abstract

The invention provides a quick lime hydrator, which belongs to the technical field of slaked lime preparation equipment. In order to solve the problem of mixing nonuniformity caused by inappropriate mixing ratio of quick lime and water in an existing quick lime hydrator, the hydrator comprises a stock bin for placing the quick lime, a metering screw conveyer for conveying the quick lime and accomplishing metering work, a metering water pump connected with an external water source, a primary spiral stirrer and a secondary spiral stirrer for mixing the quick lime and the water, and a dust collection device for absorbing dust and water vapor generated during hydration reaction of the quick lime and the water, wherein the metering screw conveyer is communicated with the stock bin; the primary spiral stirrer and the secondary spiral stirrer are arranged up and down in parallel; the primary spiral stirrer is respectively communicated with the metering screw conveyer and the secondary spiral stirrer; the water spray end of the metering water pump stretches into the primary spiral stirrer and relatively gets close to the metering screw conveyer; the metering water pump starts to spray water when the quick lime enters the primary spiral stirrer; the dust collection device is communicated with the primary spiral stirrer.

Description

technical field [0001] The invention relates to the technical field of dry powder calcium hydroxide production equipment, in particular to a quicklime digester. Background technique [0002] The quicklime digester is mainly the equipment for digesting quicklime into lime powder, and it is an indispensable equipment for the calcium hydroxide production line. It is well known that the use of quicklime in the sintering process is: to balance the alkalinity of sinter; to improve the pelletizing rate; to increase the material temperature of the mixture. It can be seen that the digestion effect of quicklime not only affects the sintering output, but also affects the quality of sintering ore, especially in the process of mixing and granulating the mixture, the slaked lime produced by the full reaction after mixing quicklime and water can improve the production capacity of the mixer. grain effect. [0003] At present, there are many kinds of quicklime digesters, which usually incl...

AI Technical Summary

Problems solved by technology

[0004] 1) Digestibility is too low

Directly mix water and quicklime in the spiral mixer of the digester. Since the water and quicklime are not measured, it is easy to add too much or too little water, resulting in insufficient hydration reaction between quicklime and water, and the quicklime cannot be completely digested. The uneven distribution of sinter alkalinity affects the stability of the produced slaked lime; at the same time, during the digestion process of the quicklime, the material bonded to the quicklime skin will break due to the digestion and expansion of the quicklime, which is not conducive to pelletizing, resulting in During the sintering process, the air permeability becomes poor, and the negative pressure is high, which affects the output and quality of sintered ore, and seriously affects the stability of slaked lime in steelmaking and other places in the later stage.

[0005] 2) Take up a lot of space

[0006] 3) Poor working environment

Because there is no special dust removal device, a large amount of dust and water vapor generated during the quicklime digestion process cannot be completely absorbed, seriously endangering the health of the staff

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