Cement production process

Abstract

The invention belongs to the technical field of cement production, and particularly relates to a cement production process, which comprises the following steps: 1, adding water into raw materials, andgrinding into raw slurry; 2, stirring and homogenizing the raw slurry; 3, calcining the uniformly stirred raw slurry to form a mature material; and 4, cooling the clinker, and packaging. The step 2 is completed by matching a slurry stirring tank, and the slurry stirring tank comprises an outer tank body and an inner tank body; a reciprocating motor is mounted on a top plate of the outer tank bodyand connected with a telescopic shaft; a square column is mounted at the bottom of the telescopic shaft; a rotating shaft is arranged at the bottom of the square column; an upper baffle ring and a lower baffle ring are mounted on the inner side wall of the outer tank body; a limiting ring is mounted on the outer side wall of the inner tank body; a stirring mechanism and a conveying mechanism aremounted on the square column, and a scraping mechanism is mounted on the rotating shaft. When the cement production process is used for stirring and homogenizing the slurry, the stirring uniformity isimproved, and the slurry is prevented from being attached to the inner side wall of the inner tank body in the discharging process.

Description

technical field [0001] The invention belongs to the technical field of cement production, and in particular relates to a cement production process. Background technique [0002] Cement is a powdery hydraulic inorganic gelling material. It can be mixed with water to form a slurry, which can be hardened in air or in water, and can firmly bind sand, stone and other materials together. As an important cementitious material, cement is widely used in civil engineering, cement and national defense projects. According to different production processes, cement production can be divided into dry production and wet production; the wet production process is to mix cement raw materials, add water and wet powder to grind into slurry, and then send the slurry into the mixing tank through The stirring shaft located in the center of the tank drives the stirring blades to homogenize the slurry, and then it is dried and calcined. In the current wet production process, there are the following...

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Problems solved by technology

[0004] The invention provides a cement production process, the purpose of which is to solve the following problems in the process of stirring and homogenizing the current wet cement production process: (1) the stirring blade is driven by the stirring shaft located in the center of the tank to carry out the slurry During the homogenization process, due to the different linear speeds on the stirring blades, the stirring degree of the slurry is also different. The stirring degree of the slurry closer to the stirring shaft is lower than that of the farther away from the stirring shaft, resulting in agitation Not uniform enough; (2) Due to the high viscosity of the slurry, it is easy to attach to the inner wall of the mixing tank during the discharging process, and becomes a solid attached to the inner wall after hardening, reducing the internal volume of the mixing tank and causing Mixing tank center of gravity offset

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