Lime powder preparation and processing treatment process

Abstract

The invention relates to a lime powder preparation and processing treatment process, and calcining and crushing equipment is used. The calcining and crushing equipment comprises a supporting seat, a conveying device, a preheater and a material spreading device. The conveying device is used, a conveying motor is started, the conveying motor is started to drive a conveying shaft to rotate, the conveying shaft rotates to drive a conveying roller to rotate, the conveying roller rotates to drive a conveying belt to rotate so as to convey limestone, and light powder slag in the limestone on the conveying belt can be shaken and sieved to fall into a collecting box. The material spreading device is adopted, a material spreading motor is started, the output end of the material spreading motor drives a screw rotating rod to rotate repeatedly in the forward direction and the reverse direction, and the limestone can be spread and shaken. Lis fully spread and rapidly crushed in the preheater, and light powder slag is screened when the limestone is conveyed through an arranged pouring hopper, so that the raw limestone uniformly falling on the spreading elastic plate is calcined and crushed more rapidly.

Description

technical field [0001] The invention relates to the technical field of lime powder, in particular to a process for preparing and processing lime powder. Background technique [0002] Lime powder is a white powdery substance with calcium carbonate as the main component. It is processed from limestone and has a wide range of applications. The most common one is used in the construction industry, that is, industrial calcium carbonate. The other is food-grade carbonate Calcium, as a common calcium supplement, is widely used. Quicklime, also known as burnt lime, is mainly composed of calcium oxide (CaO). It is usually prepared by calcining natural rocks whose main component is calcium carbonate at high temperature. It can be decomposed to produce carbon dioxide and calcium oxide; [0003] The existing calcination and crushing equipment has the following problems in the preparation of lime powder: [0004] (1) Since lime powder is made by calcining limestone, when a large amount...

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Problems solved by technology

[0004] (1) Since lime powder is made by calcining limestone, when a large amount of limestone is calcined and transported, a certain amount of light lime powder is mixed in the limestone, and the existing device cannot screen the limestone in transport, resulting in A certain amount of lime powder is calcined repeatedly, which will affect the waste of resources;

[0005] (2) When the limestone is prepared into lime powder, the limestone in the preheater accumulates more, and the existing device cannot fully spread the lime accumulated when the limestone is calcined in the preheater, resulting in long calcination time and poor effect;

[0006] (3) When the limestone is prepared into lime powder, the limestone is conveyed and dropped into the preheater, and the existing device cannot realize the uniform distribution of the limestone that falls into the preheater, so that the fallen limestone can be concentrated and pushed Accumulation, so that lime powder calcined unevenly to produce lime blocks

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