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Flue gas secondary re-burning tunnel kiln and flue gas secondary re-burning method

A tunnel kiln and flue gas technology, applied in the field of tunnel kiln, can solve the problems of poor product quality, high oxygen content, low output, etc., and achieve the effect of low production cost, high output, and good product quality

Pending Publication Date: 2019-12-31
江西振大机械制造科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the production of tunnel kiln design schemes and the roasting process, there have always been problems such as high coal consumption, poor product quality, low output, and high oxygen content.

Method used

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  • Flue gas secondary re-burning tunnel kiln and flue gas secondary re-burning method

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Embodiment Construction

[0012] Such as figure 1 As shown, a tunnel kiln kiln for secondary reburning of flue gas is mainly composed of a drying room 1, a roasting road 2 and a simple room 3. The finished bricks after cooling are transported from the simple room 3 and the upper lane 4, and the simple Passages are set on both sides of the room 3, and the simple room stores the finished bricks fired and transported by the roasting channel 2. In the drying room 1, the first wind cabinet 5 for air intake is installed, the first wind cabinet 5 is connected to the first centrifugal fan 6, and the first centrifugal fan 6 is connected to the first air duct for the air outlet 7. The first air duct 7 is distributed on the passages set on both sides of the simple house 3 and its air outlet is aimed at the brick pile of the simple house 3 (the direction of the air path is as follows: figure 1 indicated by the arrow). The second wind cabinet 8 for air intake is installed on the top of the simple room 3, and the ...

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Abstract

The invention discloses a structure of a flue gas secondary re-burning tunnel kiln and a flue gas secondary re-burning method. The structure is characterized in that a first air cabinet for air inletis installed in a drying room of the tunnel kiln, the first air cabinet is connected to a first centrifugal fan, the first centrifugal fan is connected with first air ducts used for air outlet, the first air ducts are distributed on channels arranged on the two sides of a simplified house, and air outlets of the first air ducts are aligned with a brick pile in the simplified house; and a second air cabinet for air inlet is installed at the upper part of the simplified house, the second air cabinet is connected to a second centrifugal fan, the second centrifugal fan is connected with second airducts used for air outlet, and the second air ducts are arranged on the two sides in a roasting channel low-temperature section of a roasting channel. According to the flue gas secondary re-burning tunnel kiln, the waste heat of finished bricks is fully utilized, the waste heat is used for baking the flue gas coming out of the drying room, the roasting channel is injected with the dry flue gas ofhot air, so that the roasting channel is not cooled, the roasting channel is fast to roast, the finished brick is fast to produce, and the problems of high coal consumption, poor product quality, lowyield and high oxygen content are effectively prevented.

Description

technical field [0001] The invention relates to the technical field of tunnel kilns, in particular to a tunnel kiln for secondary reburning of flue gas and a method for secondary refiring of flue gas. Background technique [0002] Tunnel kiln is a modern thermal equipment for continuous firing. Because of its continuous production, short cycle, large output and high quality, it is widely used in the roasting production of non-metallic products such as ceramics and bricks. The production and roasting of tunnel kiln generally include three parts: tunnel kiln body, equipment and kiln car. However, the problems of high coal consumption, poor product quality, low output and high oxygen content have always existed in the production of the tunnel kiln design scheme and the roasting process. Contents of the invention [0003] The purpose of the present invention is to address the above problems, to provide a tunnel kiln for secondary reburning of flue gas and a method for seconda...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27B9/02F27D17/00F26B23/02
CPCF27B9/02F27D17/00F26B23/02Y02P70/10
Inventor 陈威江
Owner 江西振大机械制造科技有限公司
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