Quick and stable cooling and emptying method for double-chamber kiln

A double-chamber kiln and fast technology, applied in the field of double-chamber kilns, can solve the problems of the double-chamber kiln being difficult to rapidly cool down, unable to discharge materials uniformly and stably, achieve rapid emptying, realize uniform and stable discharge, and control the air intake volume. Effect

Active Publication Date: 2022-07-01
广西柳钢新材料科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a double-chamber kiln cooling and emptying method, which can solve the problem that the existing double-chamber kiln is difficult to quickly cool down and discharge uniformly and stably

Method used

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  • Quick and stable cooling and emptying method for double-chamber kiln
  • Quick and stable cooling and emptying method for double-chamber kiln

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Embodiment Construction

[0023] Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail:

[0024] like figure 1 and figure 2 As shown in the figure, each kiln chamber of the double-chamber kiln has a discharge platform 11, and each discharge platform 11 is provided with four ash discharge plates, and the ash temperature measurement point is set on the positive side of each ash discharge plate of the discharge platform 11. 150-200mm above; the exhaust gas temperature measurement point is set in the connecting pipe between one of the combustion-supporting air reversing valve 3 and the chimney reversing valve 18, and the distance between the exhaust gas temperature measuring point and the combustion-supporting air reversing valve 3 is 0.4~1m , preferably, the temperature measurement point of the exhaust gas can be set at the middle position of the connecting pipe between the combustion air reversing valve 3 and the chimney reversing valve 18 .

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Abstract

The invention discloses a rapid and stable cooling and emptying method for a double-chamber kiln, and relates to the technical field of double-chamber kilneys.The method comprises the steps that after the kiln is stopped, a fire poking door is kept closed, a discharging gate plate is opened, and a reversing valve is adjusted to enable waste gas to be led to a flue gas dust remover; stopping supplying combustion-supporting and cooling air into the kiln, starting a flue gas dust removal fan, enabling the cooling air to enter the kiln from a small stock bin at the bottom of the kiln, reducing the ash temperature, and enabling the cooling air to enter a dust removal pipeline after passing through a material layer; when any ash temperature measuring point of the discharging platform exceeds 300 DEG C, discharging is not carried out; when the ash temperature is lower than 200 DEG C, the discharging platform is operated for discharging; in the whole emptying process, when any waste gas temperature measuring point exceeds 200 DEG C, stone is added according to the position of the material surface to cover the material surface or a kiln top cover plate is opened to be mixed with external cold air to cool the waste gas; and when the temperature of the waste gas is lower than 120 DEG C, the cooling air continuously cools the ash temperature and exchanges heat with the material layer. The problems that an existing double-chamber kiln is difficult to cool quickly and cannot discharge materials uniformly and stably are solved.

Description

technical field [0001] The invention relates to the technical field of double-chamber kilns, in particular to a rapid and stable cooling and emptying method for double-chamber kilns. Background technique [0002] Double-chamber kiln is a kind of lime shaft kiln, such as figure 1 As shown in the figure, it has two kiln chambers, one is the calcining chamber and the other is the regenerator chamber. Change. During production, the combustion-supporting air generated by the combustion-supporting fan 1 enters the kiln chamber through the combustion-supporting air release valve 2, and the combustion-supporting air flows downward from the top of the A kiln chamber 8 and passes through the high-temperature limestone and is preheated. The gas delivered in and sprayed from the lance head 6 is mixed and burned. The combusted flue gas moves down with the limestone until the end of the calcination zone completes combustion. The cooling air and the generated lime product are in the ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B2/12
CPCC04B2/12Y02P40/40
Inventor 李磊黄升唐文华张领魏广平杨俊杰陈小勇于海韦炳扬全劲松甘幸黄锦
Owner 广西柳钢新材料科技有限公司
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