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Method for preparing decorative glass with molten high-temperature phosphorous slag

A molten state and decorative surface technology, applied in the field of solid waste recycling, can solve the problems of high energy consumption, high production cost, waste of heat energy, etc., and achieve the effects of reducing threats, saving energy consumption, and reducing energy consumption

Active Publication Date: 2016-10-12
KUNMING UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In the conventional production process, the molten high-temperature slag discharged from the electric phosphorus furnace will waste a lot of heat energy in the process of water quenching and cooling. It needs to be heated and melted again when it is used, and the energy consumption is high. The storage makes the production cost too high and is not suitable for large-scale production. , directly using high-temperature molten phosphorus slag to prepare decorative glass can save a lot of heat energy and make full use of the phosphorus slag discharged as waste, thereby greatly reducing land occupation and reducing harmful substances such as phosphate, fluoride and heavy metals in phosphorus slag Pollution to the environment, the decorative glass produced can directly produce greater economic value

Method used

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  • Method for preparing decorative glass with molten high-temperature phosphorous slag

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Effect test

Embodiment 1

[0023] The method for preparing decorative glass using molten high-temperature phosphorus slag liquid described in this embodiment specifically includes the following steps:

[0024] (1) Use quartz sand, soda ash, and fluorite as auxiliary materials, use hot air to dry the auxiliary materials, ball mill after drying, and sieve the auxiliary materials through a 40-mesh sieve, according to the mass ratio of quartz sand, soda ash, and fluorite: 25:4:1 After weighing the auxiliary materials and mixing them evenly, put them into the kiln and preheat to 1350°C for later use;

[0025] (2) According to the mass ratio of phosphorus slag liquid to auxiliary raw materials 62:29, the high-temperature phosphorus slag liquid discharged from the electric phosphorus furnace flows into the pool kiln through the liquid flow tank, and the auxiliary materials in the above step (1) are synchronously put into the pool kiln According to the heating rate of 10°C / min, the phosphorus slag liquid and au...

Embodiment 2

[0029] The method for preparing decorative glass using molten high-temperature phosphorus slag liquid described in this embodiment specifically includes the following steps:

[0030] (1) Use quartz sand, soda ash, and fluorite as auxiliary materials, dry the auxiliary materials with hot air, ball mill after drying, and sieve the auxiliary materials through a 40-mesh sieve. The mass ratio of quartz sand, soda ash, and fluorite is 31:3:1 After weighing the auxiliary materials and mixing them evenly, put them into the kiln and preheat to 1400°C for later use;

[0031] (2) According to the mass ratio of phosphorus slag liquid to auxiliary raw materials 62:38, the high-temperature phosphorus slag liquid discharged from the electric phosphorus furnace flows into the pool kiln through the liquid flow tank, and the auxiliary materials in the above step (1) are synchronously put into the pool kiln According to the heating rate of 10°C / min, the phosphorous slag liquid and auxiliary mate...

Embodiment 3

[0035] The method for preparing decorative glass using molten high-temperature phosphorus slag liquid described in this embodiment specifically includes the following steps:

[0036] (1) Use quartz sand, soda ash, and fluorite as auxiliary materials, dry the auxiliary materials with hot air, ball mill after drying, and sieve the auxiliary materials through a 40-mesh sieve, according to the mass ratio of quartz sand, soda ash, and fluorite: 28:5:2 After weighing the auxiliary materials and mixing them evenly, put them into the kiln and preheat to 1400°C for later use;

[0037] (2) According to the mass ratio of phosphorus slag liquid to auxiliary raw materials 65:35, the high-temperature phosphorus slag liquid discharged from the electric phosphorus furnace flows into the pool kiln through the liquid flow tank, and the auxiliary materials in the above step (1) are synchronously put into the pool kiln According to the heating rate of 5°C / min, the phosphorus slag liquid and auxil...

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Abstract

The invention discloses a method for preparing decorative glass with molten high-temperature phosphorous slag and belongs to the field of waste recycling. The method comprises the steps that quartzite, sodium carbonate and fluorite serve as auxiliary raw materials and are added into molten high-temperature phosphorous slag, material preparation, preheating, blending, melting, forming and annealing are carried out, and finally the decorative glass is obtained through reprocessing. By means of the method, the heat energy of high-temperature phosphorous slag discharged out of a phosphorus electric furnace can be effectively utilized, high-temperature phosphorous slag is directly prepared into the decorative glass with the decorative effect, the phosphorous slag and heat energy generated in the phosphorus chemical industry can be utilized at the same time, the influence of yellow phosphorous slag discharging on the environment is greatly reduced, and higher economic value can be generated.

Description

technical field [0001] The invention relates to a method and process for preparing decorative glass with high-temperature phosphorus slag liquid, and belongs to the field of solid waste recycling. Background technique [0002] Yellow phosphorus slag is the waste slag that is discharged after the reaction of apatite, quartz, and coke in an electric arc furnace at a high temperature of about 1600°C when yellow phosphorus is prepared by the electric furnace method. Every ton of yellow phosphorus produces 8-10 tons of slag. At present, the annual discharge of yellow phosphorus slag in my country has reached more than 2 million tons. The annual discharge has not been effectively utilized, and it is piled up as industrial waste. Its main components are CaO and SiO 2 , the total content of the two is more than 90% on average, and also contains a small amount of TiO 2 , Fe 2 o 3 ,P 2 o 5 , MgO, F, K 2 O and Na 2 O, etc., mainly in the non-glass state. [0003] Decorative gl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C6/10C03B3/02C03B25/00
CPCC03B3/023C03B25/00C03C1/002
Inventor 宁平何力为李彬张宝华
Owner KUNMING UNIV OF SCI & TECH
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