Novel Portland cement production method

Abstract

The invention relates to the technical field of cement production, in particular to a novel portland cement production method which comprises the following raw materials in parts by weight: 66-88 parts of limestone, 2-12 parts of acidic volcanic lava, 3-9 parts of auxiliary raw materials and 2-7 parts of mineralizer. The acidic volcanic lava is adopted to replace traditional clay and acidic volcanic lava low-temperature materials, is in a molten state at the temperature of 1000-1200 DEG C, is a good fluxing agent, is beneficial to quick sintering of clinker, has excellent adsorbability, catalytic property and ion exchange property, can reduce smoke dust in a kiln, has high activity, can improve the performance quality of cement, and is suitable for industrial production. The waste gas of the rotary kiln is adopted to preheat the raw material, so that part of carbonate of the raw material can be decomposed, the heat exchange efficiency between gas and solid is improved to the maximum extent, the firing time is shortened, and the energy consumption is reduced.

Description

Technical field [0001] The present invention relates to the field of cement production techniques, in particular a new silicate cement production method. Background technique [0002] Any silicate cement clinker, 5% or less of limestone or granulated blast furnace slag, a proper amount of gypsum, is collectively referred to as silicate cement, silicate cement Most of the limestone, clay coated with other auxiliary feedstocks through the pollen-calcined-clinker-plum cream-finished cement. [0003] Most of the traditional cement use clay, clay into the surface of the surface, the resources are not concentrated, the vegetation is lush, and the long-term disorder is caused by large area damage. Accordingly, those skilled in the art have provided a new silicate cement production method to solve the problems raised in the above background. Inventive content [0004] It is an object of the present invention to provide a new silicate cement production method to solve the problems raised...

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Problems solved by technology

[0003] Clay is mostly used in traditional cement, and clay is ore-formed in the topsoil layer. The resources are not concentrated, the vegetation is lush, and long-term random digging and indiscriminate mining cause large-scale damage to the environment.

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