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Ceramic burner plate

A combustion plate and ceramic technology, applied in the direction of burners, burners, combustion methods, etc., can solve the problems of increasing the cost of burning plates, high load of burning plates, etc., and achieve the effects of easy handling, reduced mechanical load, and long-lasting carrying capacity

Inactive Publication Date: 2009-04-22
SCHWANK GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This results in high loads on the burner plate
[0013] Although it is known in the prior art that magnesium silicates such as cordierite have a high combustion temperature (1300°C), the magnesium silicate must either be burned from the bottom and mixed with the high temperature feedstock, or the pre-combustion block must be the bottom layer and Mixed with burning plates and burned at low temperature
In addition to a higher material load, this also increases the outlay in the manufacture of the combustion panels

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A kind of ceramic combustion plate, its unit mass is 1.2g / cm 3 , The porosity is 54%, and the ceramic combustion plate contains the following components:

[0035] Component content in ceramic plate / wt% Al 2 o 3 26.17 SiO 2 65.89 Fe 2 o 3 1.36 TiO 2 1.05 CaO 0.47 MgO 4.00 K 2 o 0.66 Na 2 o 0.29 mn 3 o 4 0.03 Cr 2 o 3 <0.01

P 2 o 5 0.08 ZrO 2 <0.01

Li 2 O dry sample 1.49 AAS Weight change after annealing

(1025°C) -0.03

[0036] The thermal denaturation TWB (1-3) value of the ceramic combustion plate is 1, and the TWB value is determined by a quenching test.

[0037] The coefficient of thermal expansion of said ceramic plate at 950° C., corresponding to a TBW value equal to 1, is about 0.2.

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Abstract

The present invention relates to a ceramic burner plate for infrared radiators which includes a lithium silicate as a main constituent. The burner plates according to the invention can have a content of lithium oxide within the range of 0.63% by weight to 7.6% by weight and they exhibit a high temperature resistance and are extremely durable.

Description

technical field [0001] The invention relates to ceramic burner plates mainly composed of lithium silicate for infrared radiators. Background technique [0002] Ceramic burner plates are used in infrared radiators to generate heat by combustion of a gas-oxygen mixture on the surface of the ceramic burner plate. In the process, infrared radiation is produced, which is used to generate heat. The advantages of infrared radiators compared to conventional heating systems are: on the one hand, infrared radiators can dissipate heat with almost no losses, because the heat is emitted in the form of infrared radiation and does not require any carrier medium to transfer the energy; on the other hand , and also avoids the airflow phenomenon that occurs in traditional combustion systems. [0003] Ceramic plates formerly used as burner plates have a relatively simple structure, but modern ceramic burner plates exhibit complex surface structures that greatly affect efficiency and heat dis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23D14/46F23D14/12
CPCF23D14/16F23D2900/03082F23D2212/10F23D2203/105
Inventor 伯恩德·H·斯哥万克
Owner SCHWANK GMBH
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