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Preparation of clay haydite

A technology of clay ceramsite and ceramsite, which is applied in the field of preparation of clay ceramsite, can solve the problem of high energy consumption, and achieve the effects of simple production process, low cost and high yield

Inactive Publication Date: 2009-07-08
MINZU UNIVERSITY OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method is suitable for medium and small-scale clay ceramsite production lines, but the energy consumption of repeated stacking and granulation outside the kiln is relatively high

Method used

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  • Preparation of clay haydite

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Effect test

Embodiment 1

[0026] The production process of fired clay ceramsite is as follows: figure 1 As shown, get 1000 kilograms of Qingshuihe red clay (the composition of red clay is SiO 2 64.5%, Al 2 o 3 18.8%, (Fe 2 o 3 +FeO)7.6%, CaO5.0%, MgO2.1%, K 2 O0.4%, Na 2 (00.2%, organic matter 1.4%) is placed in feed tank, adds 10 L of water (guaranteeing red clay moisture content is at about 18%), sawdust 25 kilograms, fully stirs and mixes.

[0027] Then use the double-roller granulator to granulate: first use the double-roller to roll the mud into a certain thickness and enter the granulator, and the adjustable scraper fixed in the discharge end of the granulator is forcibly cut to make a cylindrical raw material. The material is ceramsite, the length is 8±2mm, sieve out ≤5mm particles, and then spray 6kg of fly ash on it, enter the double-cylinder rotary kiln for firing, the kiln length is 30m, the diameter of the preheating kiln is 1m, and the length is 18m. The rotating speed is about 1.1-...

Embodiment 2

[0030] Get 1000 kilograms of Qingshuihe County red clay (the composition of red clay is SiO 2 62.1%, Al 2 o 3 20.1%, (Fe 2 o 3 +FeO) 7.9%, CaO 4.9%, MgO 2.5%, K 2 O 0.5%, Na 2 (0.3%, organic matter 1.7%) is placed in the hopper, adds 20L water (guaranteeing that the water content of red clay is about 18%), 15 kilograms of starch, fully stirs and mixes evenly, then adopts the double-roller granulator to make cylindrical raw Ceramsite, with a length of 15±2mm, sieve out ≤5mm particles, then spray 12kg of fly ash on it, dry at 350±150°C for 30min in the drying section of the double-cylinder rotary kiln, and 750±100°C in the preheating section Preheat at low temperature for 10 minutes, and finally bake and expand at 1180°C for 10 minutes in the firing section, and cool to obtain clay ceramsite.

Embodiment 3

[0032] The production process of fired clay ceramsite is as follows: figure 1 As shown, get 1000 kilograms of Qingshuihe red clay (the composition of red clay is SiO 2 63.8%, Al 2 o 3 19.0%, (Fe 2 o 3+FeO)8.0%, CaO5.1%, MgO2.2%, K 2 O 0.4%, Na 2 O 0.5%, organic matter 1.0%) is placed in the material trough, adds 15L water (guarantee red clay moisture content is about 18%), coal powder 20 kilograms, fully stirs and mixes evenly, adopts the roller granulator to make cylindrical shape then Raw ceramsite, the length is 18±2mm, sieve out ≤5mm particles, spray 10kg of fly ash, dry in the drying section of the rotary kiln at 400±100°C for 30min, preheat in the preheating zone at 650±100°C for 10min, Finally, it is fired and puffed at 1160°C for 10 minutes on the firing belt, and then cooled to obtain clay ceramsite.

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Abstract

The invention provides a preparation method for clay ceramic aggregate. The red clay in a clay ore in Qingshuihe County, Inner Mongolia is taken as a main raw material; the main raw material and other supplementary materials are mixed; and the ceramic aggregate is prepared through the process of granulation, drying, preheating, calcination and expanding, and cooling. The preparation method has a simple process, high yield, low cost and no pollution, and facilitates the environmental protection and ecological equilibrium and realizes the reasonable utilization of the local resource. The relevant technical indexes of the product reach the requirements of a trade standard (JC / T786-1981(1996)).

Description

technical field [0001] The present invention relates to a preparation method of clay ceramsite, in particular to a kind of red clay from the clay mine in Qingshuihe County, Inner Mongolia as the main raw material, which is prepared by batching, granulating, drying, preheating and firing at high temperature to produce ultra-light The method of quality clay ceramsite. Background technique [0002] In recent years, my country's wall reform policy has been deepened and its implementation has been gradually strengthened, thus creating a huge market space for the development of new building materials. As a lightweight aggregate for construction, ceramsite has attracted great attention for its light weight, heat preservation, waste utilization, and environmental protection. The raw materials for producing ceramsite mainly include shale, clay, fly ash, industrial waste residue, river silt, etc. Due to the limitation of land resources in recent years, the production and use of clay...

Claims

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Application Information

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IPC IPC(8): C04B33/00C04B38/00C04B14/04
Inventor 刘颖冯金朝
Owner MINZU UNIVERSITY OF CHINA
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