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Foaming ceramic light sheet material prepared from granite scraps and preparation method thereof

A technology of granite waste and foamed ceramics, which is applied in the production and application of ceramic products and ceramic materials, can solve the problems of long foaming time, high temperature, and high cost, and achieve improved uniformity, good overall uniformity, and excellent quality Effect

Inactive Publication Date: 2018-11-06
KEDA INDUSTRIAL GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, if figure 1 As shown, the foamed ceramic light board made in the prior art has multi-layer pores formed inside
During the foaming process, due to the long foaming time and the influence of gravity, the pores in the lower layer will be flattened, making the overall uniformity of the product poor
[0006] Moreover, because the existing foamed bricks are relatively thick overall and the formula system is relatively difficult to oxidize, the formula system of the foamed ceramics determines that it must be fired in a tunnel kiln. The cost of firing in a tunnel kiln is high, the firing cycle is long, and the temperature is high. high
Compared figure 1 The thickness of the foamed ceramic light board is 100-500mm, and it is impossible to obtain a finished product with excellent quality after firing for 30-300 minutes.

Method used

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  • Foaming ceramic light sheet material prepared from granite scraps and preparation method thereof
  • Foaming ceramic light sheet material prepared from granite scraps and preparation method thereof
  • Foaming ceramic light sheet material prepared from granite scraps and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] (1) take raw material by formula, described raw material comprises:

[0078] Granite waste 70%, clay 20%, foaming agent 5%, manganese dioxide 5%;

[0079] (2) ball milling the raw material;

[0080] (3) The raw materials after ball milling are screened through screening equipment;

[0081] (4) carrying out spray granulation with the raw material after screening;

[0082] (5) distributing the raw materials after spray granulation to obtain green bodies;

[0083] (6) firing the green body through a roller kiln to obtain a semi-finished product;

[0084] (7) Cut and grind the semi-finished product to obtain the finished product.

[0085] Among them, the firing methods of the roller kiln include:

[0086] (a) Raise the temperature to 800°C and keep it at 800°C for 20 minutes, wherein the heating rate from 0°C to 400°C is 10°C / min, and the heating rate from 400°C to 800°C is 3°C / min;

[0087] (b) Raise the temperature to 1150°C and keep it at the highest temperature fo...

Embodiment 2

[0090] (1) take raw material by formula, described raw material comprises:

[0091] Granite waste 80%, clay 18%, foaming agent 1%, manganese dioxide 1%;

[0092] (2) ball milling the raw material;

[0093] (3) The raw materials after ball milling are screened through screening equipment;

[0094] (4) carrying out spray granulation with the raw material after screening;

[0095] (5) distributing the raw materials after spray granulation to obtain green bodies;

[0096] (6) firing the green body through a roller kiln to obtain a semi-finished product;

[0097] (7) Cut and grind the semi-finished product to obtain the finished product.

[0098] The firing methods of roller kiln include:

[0099] (a) Raise the temperature to 820°C and keep it at 820°C for 15 minutes, wherein the heating rate from 0°C to 400°C is 15°C / min, and the heating rate from 400°C to 820°C is 5°C / min;

[0100] (b) Raise the temperature to 1170°C and keep it at the highest temperature for 30 minutes, wh...

Embodiment 3

[0103] (1) take raw material by formula, described raw material comprises:

[0104] Granite waste 75%, clay 20%, foaming agent 2%, manganese dioxide 3%;

[0105] (2) ball milling the raw material;

[0106] (3) The raw materials after ball milling are screened through screening equipment;

[0107] (4) carrying out spray granulation with the raw material after screening;

[0108] (5) distributing the raw materials after spray granulation to obtain green bodies;

[0109] (6) firing the green body through a roller kiln to obtain a semi-finished product;

[0110] (7) Cut and grind the semi-finished product to obtain the finished product.

[0111] The firing methods of roller kiln include:

[0112] (a) Raise the temperature to 830°C and keep it at 830°C for 25 minutes, wherein the heating rate from 0°C to 400°C is 15°C / min, and the heating rate from 400°C to 830°C is 5°C / min;

[0113] (b) Raise the temperature to 1180°C, and keep it at the highest temperature for 0-60min, wher...

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Abstract

The invention discloses a method of using granite scraps to prepare a foaming ceramic light sheet material. The method comprises following steps: (1) weighing following raw materials in percentage byweight: 70 to 90% of granite scraps, 5 to 20% of clay, 0.01 to 5% of foaming agent, and 0.1 to 5% of manganese dioxide; (2) ball-milling raw materials; (3) after ball milling, sieving raw materials bya sieving facility; (4) after sieving, spray-granulating sieved raw materials; (5) after spray granulation, distributing the raw materials to obtain a green body; and (6) burning the green body in aroller kiln or a tunnel kiln to obtain a finished product. Correspondingly, the invention also discloses a foaming ceramic light sheet material prepared by the method mentioned above. The air holes ina cross section of the foaming ceramic light sheet material are uniform from top to bottom; the air hole uniformity is high, and the sheet material can be prepared by a tunnel kiln or a roller kiln.

Description

technical field [0001] The invention relates to the technical field of ceramic plates, in particular to a foamed ceramic light plate produced from granite waste and a preparation method thereof. Background technique [0002] The matrix materials used in foamed ceramics come from wastes such as ceramic factory waste and industrial waste (tile polishing waste or cinder or stone waste, etc.). If these wastes are not treated, they will be piled up or landfilled randomly. Waste of resources. [0003] This foamed ceramic product has gradually begun to be used nationwide due to its advantages of light weight, high strength, fire prevention, earthquake resistance, heat insulation, sound insulation, strong combination, easy handling, and wide application. And because the raw materials are solid wastes such as coal slag, tile polishing waste, slag, etc., it has positive social significance in terms of full utilization of resources and environmental protection. [0004] The prior art...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/02C04B33/132C04B33/13C04B33/04
CPCC04B33/04C04B33/13C04B33/132C04B33/1321C04B38/02C04B2235/3267C04B2235/6562C04B2235/6565C04B2235/6567C04B2235/661C04B2235/77C04B2235/96C04B2235/9607C04B38/0067Y02P40/60
Inventor 林智
Owner KEDA INDUSTRIAL GROUP CO LTD
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