Device and method for realizing glass ceramic crystallization through microwave-electric hybrid heating

A glass-ceramic and microwave heating technology, applied in electric furnace heating, lighting and heating equipment, charge composition/state, etc., can solve the problems of difficulty in ensuring crystallization quality, high energy consumption, etc., to avoid product cracking, improve quality, eliminate effect of stress

Pending Publication Date: 2019-03-29
INNER MONGOLIA UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since the crystallization of glass ceramics must run smoothly in the crystallization furnace, and it is necessary to ensure that the temperature difference of the heat treatment of the material is within a certain range, that is, each temperature section must be controlled within ±10°C, so higher requirements are put forward for the crystallization furnace. Requirements, if natural gas or coal gas is used as fuel, one will consume a lot of energy, and two, it will be difficult to guarantee the quality of crystallization

Method used

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  • Device and method for realizing glass ceramic crystallization through microwave-electric hybrid heating
  • Device and method for realizing glass ceramic crystallization through microwave-electric hybrid heating
  • Device and method for realizing glass ceramic crystallization through microwave-electric hybrid heating

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Embodiment 1

[0029] Embodiment one: see Figure 1-3 , a microwave-electric hybrid heating device for crystallizing glass ceramics, including a main furnace body, a microwave heating system, an electric heating system, and a transmission system;

[0030] The main furnace body includes a heating section (11), a crystallization section (12), a cooling section (13) and a cooling section (14) which are sealed and docked in sequence; a furnace (16) is arranged inside each section of the main furnace body, An insulating layer (17) is provided on the inner wall of the furnace (16), and a microwave heating system comprising a microwave emission system (21) and a thermocouple (22) is formed on the top of each section of the main furnace body, and the thermocouple (22) run through the main furnace body and extend into the interior of the main furnace body;

[0031] The sides of each section of the main furnace body are equipped with an electric heating system; the electric heating system includes el...

Embodiment 2

[0053] Embodiment two: see Figure 1-3 A method for crystallizing glass-ceramics by utilizing the microwave-electric hybrid heating of Embodiment 1 to realize the glass-ceramic crystallization device comprises the following steps:

[0054] ①The material to be crystallized (15) enters the heating section (11) through the roller table formed by the rotating roller (52) through the entrance microwave suppression device (51). (36) Propel and contact with the end (35) of the lead wire of the electric heating element by the forward and backward actuator (37), then power on after a delay of 3 seconds, adjust the electric heating power to 40KW, and heat up to 400°C at a rate of 3°C per minute; Then open the microwave-electric hybrid heating system, that is, cut off the electric heating power supply earlier, and after a delay of 3 seconds, the power line contact (36) withdraws from the advance and retreat actuator (37) by 50mm; The output power is 30KW, turn off the microwave heating ...

Embodiment 3

[0058] Embodiment three: see Figure 1-3 A method for crystallizing glass-ceramics by utilizing the microwave-electric hybrid heating of Embodiment 1 to realize the glass-ceramic crystallization device comprises the following steps:

[0059] ①The material to be crystallized (15) enters the heating section (11) through the roller table formed by the rotating roller (52) through the entrance microwave suppression device (51). (36) Propel and contact with the end (35) of the lead wire of the electric heating element by the advancing and retreating actuator (37), then power on after a delay of 4 seconds, adjust the electric heating power to 45KW, and raise the temperature to 420°C at a rate of 2°C per minute, Then turn on the microwave-electric hybrid heating and cut off the electric heating power supply first, and after a delay of 4 seconds, the power line contact (36) withdraws 55mm from the advance and retreat actuator (37); simultaneously start the microwave emission system (2...

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Abstract

The invention relates to a device and method for realizing glass ceramic crystallization through microwave-electric hybrid heating. The device comprises a main furnace body, a microwave heating system, an electric heating system and a conveying system. According to the device and method for realizing glass ceramic crystallization through microwave-electric hybrid heating, heating, crystallization,cooling and refrigeration processes are combined together organically, and automation of the whole crystallization production process is achieved; and according to the device, microwave heating and electric heating are conducted alternately in the whole heating process, microwave heating and electric heating are automatically switched, a temperature atmosphere synchronously equilibrated with electric heating is provided through electric heating while a glass ceramic product is treated through microwave heating, the violent cooling and heating processes do not exist in the whole process, stress is eliminated, product cracking is avoided effectively in the whole process, and the quality of the product can be comprehensively improved.

Description

technical field [0001] The invention belongs to the technical field of glass ceramics, and in particular relates to a device and method for crystallizing glass ceramics by using microwave-electric hybrid heating. Background technique [0002] With the development of the national economy, the industrial production of glass ceramics has been greatly developed, but there are still many problems in the research and development of industrial equipment and industrial production technology, especially the development of glass ceramic crystallization technology and equipment The difficulties and key points in the development of the industry, compared with the huge application prospects of glass ceramics, the industrial production of glass ceramics in my country has just started. Many problems in the research and development of industrial equipment and industrial production technology need to be solved urgently. Since the crystallization of glass ceramics must run smoothly in the crys...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B32/02F27D11/02
CPCF27D11/02C03B32/02F27M2001/035
Inventor 李保卫张雪峰贾晓林刘新保
Owner INNER MONGOLIA UNIV OF SCI & TECH
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