White cement clinker bleaching process

Abstract

The invention belongs to the technical field of cement production, and especially relates to a white cement clinker bleaching process. A cooling device used in the process comprises a bottom plate, awater pool is fixed to the top end of the bottom plate, a water inlet pipe is arranged on the side wall of the water pool, a spray head is fixed at one end of the water inlet pipe in the water pool, the spray head is used for spraying water mist to water clinker, a water outlet is formed in the bottom end of the water pool, a feeding hopper is fixed to the top end of the water pool and used for feeding clinker, two supports are fixed to the top end of the water pool, a push rod motor is fixed between the two supports, and a rectangular plate is fixed to the output shaft end of the push rod motor. Holes are formed in the surface of the large-particle clinker, so that the interior of the large-particle clinker is in contact with external cooling water, the cooling speed and the cooling efficiency of the large-particle clinker are improved, the cooling uniformity of the large-particle clinker is guaranteed, the water immersion time is shortened, and the production efficiency of white cement is improved.

Description

technical field [0001] The invention belongs to the technical field of cement production, in particular to a white cement clinker bleaching process. Background technique [0002] White cement, the full name of which is white Portland cement, is made of raw materials with appropriate ingredients until they are partially melted, and the resulting white hydraulic cement is made of calcium silicate as the main component, and clinker with low iron content is added with an appropriate amount of gypsum. gelling material. With high whiteness and bright color, it is generally used as a variety of building decoration materials, typically including stucco, sculpture, floor, terrazzo products, etc. White cement can also be used to make white and colored concrete components, and is the largest production scale decoration Cement varieties. Cement clinker is a semi-finished product obtained by using limestone, clay, and iron as the main raw materials, which are prepared into raw meal in ...

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Problems solved by technology

[0003] There are also some technical solutions about white cement clinker bleaching in the prior art, such as a Chinese patent whose application number is 2013104683493, which discloses a white cement clinker bleaching cooling device and a bleaching cooling process, including setting in The cooling water tank below the discharge port of the rotary kiln and the scraper conveyor used to lift the white cement clinker in the cooling water tank out of the cooling water tank. Water pipe, the upper part of the side opposite to the cooling water inlet pipe is provided with a cooling water outlet pipe with a diameter larger than the diameter of the cooling water inlet pipe, using flowing water to soak and cool the white cement clinker to replace the water shower and immersion phase of the prior art Combining treatment not only saves a lot of cooling water, but also reduces the loss of white cement powder. However, it is difficult for large particles of clinker to enter water, which makes it difficult to rapidly cool down the interior of large particles of clinker, thus Affects the bleaching effect of clinker

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