Preparation method of cast slate with andesite as main raw material

A main raw material, andesite technology, applied in the field of cast stone plates, can solve the problems of high energy consumption, low strength, and many bubbles in the production of products, and achieve the effects of improved strength, less internal pores, and lower melting temperature

Active Publication Date: 2019-06-04
LIAONING SILICATE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the present invention provides a method for preparing cast stone slabs with andesite as the main raw material to solve the problems of excessive energy consumption, low strength, and more air bubbles in the casting process of traditional cast stone slabs in the production process. question

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A method for preparing cast stone slabs with andesite as the main raw material, the method is realized through the following specific steps and process conditions:

[0026] a) Crushing of raw materials: Send andesite and calcite ores into jaw crusher, hammer crusher, and Raymond machine in sequence for sufficient crushing at different levels, and the fineness of the above raw materials is controlled below 200 mesh;

[0027] b) Mixing of raw materials: Send the crushed raw materials into the mixer according to the weight percentage of 78% andesite powder, 8% calcite powder, 6% sodium carbonate, 4% boric acid, and 4% iron oxide, and mix them evenly. The fineness of the above raw materials is controlled Below 200 mesh;

[0028] c) Spreading of raw materials: On the kiln car of the tunnel kiln, surround and asbestos paper to surround the cavity of the plate, spread the mixed raw material powder evenly in the cavity around the edge, and the thickness of the raw material shou...

Embodiment 2

[0034] a) Crushing of raw materials: Send andesite and calcite ores into jaw crusher, hammer crusher, and Raymond machine in sequence for sufficient crushing at different levels, and the fineness of the above raw materials is controlled below 200 mesh;

[0035] b) Mixing of raw materials: Send the pulverized raw materials into the mixer according to the weight percentage of 77% andesite powder, 12% calcite powder, 4% sodium carbonate, 6% boric acid, and 1% iron oxide, and mix them evenly. The fineness of the above raw materials is controlled Below 200 mesh;

[0036] c) Spreading of raw materials: On the kiln car of the tunnel kiln, surround and asbestos paper to surround the cavity of the plate, spread the mixed raw material powder evenly in the cavity around the edge, and the thickness of the raw material should be according to the thickness of the plate. Spread 1.25 times the required thickness;

[0037] d) High-temperature melting: Send the kiln car with the raw materials ...

Embodiment 3

[0042] a) Crushing of raw materials: Send andesite and calcite ores into jaw crusher, hammer crusher, and Raymond machine in sequence for sufficient crushing at different levels, and the fineness of the above raw materials is controlled below 200 mesh;

[0043] b) Mixing of raw materials: Send the crushed raw materials into the mixer according to the weight percentage of 71% andesite powder, 16% calcite powder, 2% sodium carbonate, 8% boric acid, and 3% iron oxide, and mix them evenly. The fineness of the above raw materials is controlled Below 200 mesh;

[0044] c) Spreading of raw materials: On the kiln car of the tunnel kiln, surround and asbestos paper to surround the cavity of the plate, spread the mixed raw material powder evenly in the cavity around the edge, and the thickness of the raw material should be according to the thickness of the plate. Spread 1.5 times the required thickness;

[0045] d) High-temperature melting: Send the kiln car with the raw materials spre...

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Abstract

The invention discloses a preparation method of a cast slate with andesite as a main raw material, and relates to the technical field of applications of building materials, wherein the cast slate usesandesite as a main raw material, and uses calcite, sodium carbonate, boric acid and iron oxide as auxiliary materials, the raw materials specially comprise, by weight, 71-78% of andesite powder, 8-16% of calcite powder, 2-6% of sodium carbonate, 4-8% of boric acid, and 1-5% of iron oxide, and crushing, material distributing, high temperature melting, cooling molding, annealing and cutting polishing, and other steps are performed to prepare the product. According to the present invention, with the method, the sintering temperature of the cast slate is effectively reduced, such that the productis dense, and has few internal gas pores so as to effectively improve the load-bearing capacity and the service life of the cast slate.

Description

technical field [0001] The invention relates to the technical field of cast stone plates, in particular to a method for preparing cast stone plates with andesite as a main raw material. Background technique [0002] As we all know, the production process of traditional cast stone slabs is: raw material mixing, high temperature melting, casting and annealing. In the traditional process, the melting temperature of raw materials is generally controlled at about 1400°C. This process will generate a huge energy consumption, resulting in an increase in cost. At the same time, during the pouring process, due to the uneven pouring speed, a large number of air bubbles will be generated inside the cast stone slab, which not only affects the use strength of the product, but also affects the aesthetics of the product. At the same time, the traditional molding process uses the pouring method. If the size of the plate is too large and the thickness is thick, the difficulty of pouring wil...

Claims

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Application Information

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IPC IPC(8): C04B32/00C04B111/20
Inventor 张挽邱宏金鑫许壮志薛健
Owner LIAONING SILICATE RES INST
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