Additive applied to saving energy and increasing effect in cement production and preparation method thereof

Abstract

The invention discloses an additive applied to saving energy and increasing effect in cement production. The additive is characterized by comprising the following components in percentage by weight: 60-80 percentage of triethanolamine, 8-12 percentage of monoethanolamine, 0.5-3 percentage of sodium polyacrylate, 0.5-3 percentage of sodium dodecyl sulfate, 0.5-1.5 percentage of abietin, 0.5-2.5 percentage of nickel salt, and 10-18 percentage of water. The additive has the main advantages of: 1, respectively improving output of a raw material grinder and a coal grinder for more than 10%, saving power consumption in grinding by more than 10%; 2, saving the coal consumption in the cement production process by more than 8%; 3, improving output of clinker by more than 8%; 4, improving the strength of the clinker at different ages for 2-5 MPa, and being capable of improving the stability of the clinker; 5, improving the comprehensive economic benefit of the clinker by more than 10 Yuan / ton; and 6, respectively reducing emission of CO2 and SO3 in the cement production by more than 8%.

Description

technical field [0001] The invention belongs to cement additives, in particular to an additive suitable for energy saving and efficiency enhancement in cement production and a preparation method. Background technique [0002] Although the cement industry is an important industry in the national economy, it is also a big consumer of electricity and coal. In the previous cement shaft kiln production process, some cement plants used products such as "coal-saving synergist" or "raw meal quick-burning agent". Effect. At present, the dry rotary kiln has basically replaced the vertical kiln with high energy consumption and low production efficiency. However, this type of product cannot be applied to the production of cement dry rotary kiln from the perspective of production technology. Because this type of product is mainly composed of mineralizers containing chloride salts or fluorine salts, the salts have a low melting point and are easy to melt during the process of flowing t...

AI Technical Summary

Problems solved by technology

At present, the dry rotary kiln has basically replaced the vertical kiln with high energy consumption and low production efficiency.

However, this type of product cannot be applied to the production of cement dry rotary kiln from the perspective of production technology.

Because this type of product is mainly composed of mineralizers containing chloride salts or fluorine salts, the salts have a low melting point and are easy to melt during the process of flowing through the preheater, resulting in "sticking phenomenon"; F - and Cl - In a higher temperature environment, it is easy to cause serious corrosion to the refractory materials in the dry method rotary kiln preheater and the kiln body, thus affecting the normal calcination of the dry method rotary kiln

In addition, there are also additives in China that claim to be suitable for dry rotary kiln production. The powder type is similar to the vertical kiln additive mentioned above. This type of product is actually not suitable for dry rotary kiln production; the liquid type is generally only used in coal mills. Adding in medium, lack of grinding aid effect on the grinding of raw meal, can not improve the fluidity and dispersibility of raw meal, and can not reasonably improve the particle distribution of raw meal, the effect is not ideal