Sludge microcrystalline glass and its preparation method

A technology for glass-ceramic and sludge, which is applied to the field of sludge glass-ceramic and its preparation, can solve the problems of increasing the total production cost of glass-ceramic products and the high cost of raw materials, thereby simplifying the batching operation process, reducing the cost of raw materials, and reducing the batching cost. The effect of simple operation process

Inactive Publication Date: 2006-07-26
CHINA UNIV OF GEOSCIENCES (WUHAN)
View PDF0 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The raw materials used in the current glass-ceramic production process are high-grade mineral raw materials and chemical raw materials, and the cost of raw materials is relatively high, which increases the total production cost of glass-ceramic products

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Raw material ratio: calcined sludge 60.0 parts; limestone 16.3 parts; dolomite 18.0 parts; gypsum 5.0 parts; antimony trioxide 0.7 parts.

[0021] Weigh the raw materials according to the ratio of raw materials, mix them evenly, put them into the crucible, melt them at 1500°C for 2 hours, then lower them to 1400°C for 0.5 hours to obtain molten glass; pour them into molds, form them into glass plates, and Anneal at 600°C for 2 hours; then transfer to the trolley furnace, hold at 770°C for 1 hour for nucleation, then raise the temperature to 1000°C, hold for 2 hours for crystallization, then lower the temperature to 600°C, hold for 2 hours for heat preservation and annealing, and then make The original plate of the sludge glass-ceramic is obtained; the original plate of the sludge glass-ceramic is cut, polished, and polished to obtain a finished product of the sludge glass-ceramic.

Embodiment 2

[0023] The pretreatment and chemical composition of the sludge are the same as in Example 1.

[0024] Raw material ratio: calcined sludge 65.0 parts; limestone 18.0 parts; dolomite 16.0 parts; antimony trioxide 1.0 parts.

[0025] Concrete process and process parameter are with embodiment 1.

Embodiment 3

[0027] The pretreatment and chemical composition of the sludge are the same as in Example 1.

[0028] Raw material ratio: calcined sludge 70.0 parts; limestone 20.0 parts; dolomite 9.0 parts; antimony trioxide 1.0 parts.

[0029] Weigh the raw materials according to the ratio of raw materials, mix them evenly, put them into the crucible, melt them at 1550°C for 2 hours, and then lower them to 1420°C for 0.5 hours to obtain molten glass; pour them into molds and form them into glass plates. Anneal at 650°C for 2 hours; then transfer to the trolley furnace, heat-preserve and nucleate at 780°C for 1 hour, then raise the temperature to 1020°C, heat-preserve and crystallize for 3 hours, then lower the temperature to 650°C, heat-preserve and anneal for 2 hours, and make it after cooling Obtain the original plate of sludge glass-ceramic; cut, grind and polish the original plate to obtain the finished product of sludge glass-ceramic.

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

No PUM Login to view more

Abstract

The invention relates to a sludge microcrystalline glass and method for production, wherein the microcrystalline glass comprises (by weight portions) calcinations sludge 45-80 parts, lime stone 12-30 parts, dolomite 8-25 parts, gypsum 0-10 parts, and antimony trioxide 0-1 part, the sum of weight parts for each raw material is 100, the calcinations sludge is prepared through drying wet sludge from waste water treatment plant, calcining 1-3 hours at 800-1100 deg C in kilns, finally cooling down and crushsing.

Description

technical field [0001] The invention relates to a sludge glass-ceramic and a preparation method thereof, in particular to a glass-ceramic for architectural decoration prepared from urban domestic sewage sludge as a main raw material and a preparation method thereof. Background technique [0002] Glass-ceramic for architectural decoration is a kind of high-grade building decoration material, which has the advantages of high flexural strength, good thermal stability, non-absorbent, hard texture, acid and alkali corrosion resistance, frost resistance, moisture resistance, easy cleaning, etc., and can be widely used It is used for wall and floor decoration of high-end buildings. [0003] The raw materials used in the active glass-ceramic production process are high-grade mineral raw materials and chemical raw materials, and the cost of raw materials is relatively high, which increases the total production cost of glass-ceramic products. [0004] Urban domestic sewage sludge (he...

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): C03C6/00C03B1/02C03C3/097C03B32/02
CPCC03C10/00C03C3/097
Inventor 王焰新周俊李飞
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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