Method for producing ceramic glazed tile from coal slag by double sintering

A technology of ceramic glaze and cinder, which is applied in the field of producing ceramic tiles, can solve the problems of low utilization rate of cinder, achieve the effect of saving mineral raw materials and good economic benefits

Inactive Publication Date: 2011-01-19
SOUTH CHINA UNIV OF TECH
View PDF5 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The published patent number is CN1570318A, which proposes a cinder clay sintered brick and its production process. The content of pulverized coal slag used is only 3-8%, and pulverized coal is 2-3.5%. The utilization rate of cinder is low.
The published patent No. is CN1262256A, which proposes to use cinders to make sanitary porcelain raw materials, and the utilization rate of cinders is only 5-35%.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for producing ceramic glazed tile from coal slag by double sintering
  • Method for producing ceramic glazed tile from coal slag by double sintering

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The raw material formula of the present invention is:

[0023] Cinder 50g

[0024] Albite 10g

[0025] Kaolin 20g

[0026] Potassium feldspar 20g

[0027] Such as figure 1 As shown, after cinder, kaolin, potassium feldspar and albite are crushed, they are mixed with 0.3g sodium hydroxymethylcellulose and 0.3g sodium tripolyphosphate for wet ball milling according to the formula, and the ratio of material ball to water is 1:1: 7. The wet-milled slurry can pass through a 60-mesh sieve, spray-dry after wet-milling, and dry-press the sprayed powder into a size of 600mm*600mm*11mm. After drying, the moisture content of the green body is <0.1 %, into a low-temperature roller kiln for biscuit firing, the sintering temperature is 1055°C, and the firing time is 165min. After biscuit firing, the green body is glazed and dried for 30 minutes, and then glazed and fired in a high-temperature roller kiln. The sintering temperature is 1215°C and the firing time is 55 minutes. Th...

Embodiment 2

[0028] The raw material formula of the present invention is:

[0029] Cinder 53g

[0030] Albite 12g

[0031] Kaolin 10g

[0032] Potassium feldspar 25g

[0033] Such as figure 1 As shown, after crushing cinder, kaolin, potassium feldspar and albite, according to the formula, mix with 0.3g sodium hydroxymethylcellulose and 0.3g sodium tripolyphosphate for wet ball milling, the ratio of material ball to water is 1:1 : 7, the wet-milled slurry can pass through a 60-mesh sieve, spray-dry after wet-milling, and dry-press the sprayed powder into a size of 600mm*600mm*11mm. After drying, the moisture content of the green body is < 0.1%, into the low-temperature roller kiln biscuit firing, the sintering temperature is 1075 ℃, and the firing time is 165min. After bisque firing, the green body is sprayed with glaze, printed and decorated, dried for 30 minutes, and then glazed and fired in a high-temperature roller kiln. The sintering temperature is 1210°C and the firing time is 55...

Embodiment 3

[0035] The raw material formula of the present invention is:

[0036] Cinder 55g

[0037] Albite 15g

[0038] Kaolin 15g

[0039] Potassium feldspar 15g

[0040] Such as figure 1 As shown, after cinder, kaolin, potassium feldspar and albite are crushed, they are mixed with 0.3g sodium hydroxymethylcellulose and 0.3g sodium tripolyphosphate for wet ball milling according to the formula, and the ratio of material ball to water is 1:1: 7. The wet-milled slurry can pass through a 60-mesh sieve, spray-dry after wet-milling, and dry-press the sprayed powder into a size of 600mm*600mm*11mm. After drying, the moisture content of the green body is <0.1 %, into the low-temperature roller kiln biscuit firing, the sintering temperature is 1060 ℃, and the firing time is 165min. After bisque firing, the green body is glazed and dried for 30 minutes, and then glazed and fired in a high-temperature roller kiln. The sintering temperature is 1200 ° C and the firing time is 55 minutes. The...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
flexural strengthaaaaaaaaaa
water absorptionaaaaaaaaaa
Login to view more

Abstract

The invention discloses a method for producing a ceramic glazed tile from coal slag by double sintering. The coal slag, albite, kaolin, potassium feldspar, carboxymethyl cellulose sodium and sodium tripolyphosphate are subjected to double sintering, namely a process for low temperature biscuiting and high temperature glaze firing. A large amount of coal slag is recycled and the traditional ceramic raw material is saved at the same time; and the ceramic glazed tile is an environmental-friendly high-grade architectural ceramic decorative material. The ceramic glazed tile has the characteristicsof good decorative effect, environmental protection, high intensity, and corrosion resistance, and can be widely applied to decoration.

Description

technical field [0001] The invention relates to a method for producing ceramic bricks by using coal slag, in particular to a method for producing ceramic glazed bricks by using coal slag and adopting secondary sintering. Background technique [0002] my country is a large coal-based energy production and consumption country. Whether it is industry, power plants, civil boilers and other coal-fired equipment, a large amount of coal slag is produced every year. After 1 ton of coal is burned, an average of about 0.35t of coal slag is produced. The disposal and accumulation of coal slag not only occupies land, but also emits sulfur-containing gas to pollute the atmosphere, endanger the environment, and even spontaneously ignite and cause fire. Long-term stacking will bring a load to the ecological environment. At present, cinder is mainly used as adsorbent, decolorizer, or with concrete, gypsum and other raw materials to produce non-load-bearing hollow bricks. The utilization rat...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/135C04B33/34
CPCY02P40/60
Inventor 程小苏陈倩曾令可税安泽王慧刘平安
Owner SOUTH CHINA UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap