Energy-saving ceramic tunnel kiln

A tunnel kiln and energy-saving technology, which is applied in the field of ceramic kilns, can solve the problems of uneven temperature in the firing zone section, prolong the firing time, and affect the combustion efficiency, so as to improve product quality and save electricity, temperature stability, and energy saving. fuel effect

Active Publication Date: 2010-06-30
GUANGDONG SHUNXIANG PORCELAIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the existing ceramic tunnel kilns have taken many measures for energy saving, there are still uneven temperatures in the firing zone of the kiln body, resulting in high stress on the product, easy to cause cracking and prolongi

Method used

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  • Energy-saving ceramic tunnel kiln
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Examples

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Embodiment Construction

[0025] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

[0026] Such as figure 1 and figure 2 As shown, the energy-saving tunnel kiln of the present invention is composed of a kiln body, a combustion system, a fan system and the like. The kiln body is 80 meters long and has a preheating zone 1, a firing zone 2 and a cooling zone 3. The preheating zone 1, firing zone 2 and cooling zone 3 are all provided with kiln passages 25. The firing zone 2 is vertically provided with two firewalls 21 at both ends of the 1300-1380°C high temperature zone to separate the upper part of the high temperature zone from the upper parts of other temperature zones. The fire-retaining wall 21 is a cuboid, made of light mullite bricks, and the hanger 20 made of stainless steel is fixed on the kiln roof 24; the width of the wall is the same as that of the passage 25 in the kiln, and the thickness is 23cm. The upp...

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PUM

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Abstract

The invention provides an energy-saving ceramic tunnel furnace. A kiln body is provided with a peheating zone, a clinkering zone and a cooling zone, wherein the clinkering zone is vertically provided with two baffle walls at two ends of a high-temperature zone of between 1,300 and 1,380 DEG C, and the baffle walls are fixed on a kiln top by using a metal hanging piece; the upper part of the high-temperature zone is isolated from the upper parts of other temperature zones, so that the temperature of the high-temperature zone is relatively stable, the temperature of the upper and lower parts is more uniform, and thus the tunnel kiln is favorable for sintering products and saving fuel gas. A combustion system is controlled by adopting full-automatic air/fuel ratios, the fuel gas and combustion air enter a fuel gas burner through precise control and mixing to be combusted in the kiln completely, so that the highest heat value is obtained, surplus air is prevented from entering the kiln, and fuel is saved. A smoke exhaust fan and a combustion fan are controlled by adopting frequency control of motor speed, so that the stability of kiln pressure, the pressure of the combustion air and sintering atmosphere is maintained, the quality of the products is improved and electricity is saved.

Description

technical field [0001] The invention relates to a ceramic kiln, in particular to an energy-saving ceramic tunnel kiln. Background technique [0002] Tunnel kiln is a continuous production kiln with horizontal airflow, which is widely used in the firing process of daily-use ceramics. In particular, the tunnel kiln fueled by liquefied petroleum gas has been widely promoted because of its high firing yield and stable quality. However, the daily-use ceramics industry is a high-energy-consuming industry, and the energy consumption cost accounts for 30-40% of the ceramic production cost, and the energy consumption of the firing process accounts for 70-80% of the total energy consumption of production. It is always a key issue in reducing production costs in ceramic production. Although the existing ceramic tunnel kilns have taken many measures for energy saving, there are still uneven temperatures in the firing zone of the kiln body, resulting in high stress on the product, easy...

Claims

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Application Information

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IPC IPC(8): F27B9/02F27B9/12F27B9/30F27B9/36F27B9/40
CPCY02P40/60
Inventor 林伟河
Owner GUANGDONG SHUNXIANG PORCELAIN
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