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A Method for Reducing Smoke and Dust in Regenerative Melting Furnace

A melting furnace and regenerative technology, applied in furnaces, waste heat treatment, furnace components, etc., can solve the problems of poor smoke and dust effects, achieve the effect of reducing smoke and dust, reducing smoke and dust pollution, and quickly and effectively discharging

Active Publication Date: 2021-03-23
NORTHEAST LIGHT ALLOY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of poor effect of existing methods for reducing smoke in regenerative melting furnaces, and provide a method for reducing smoke in regenerative melting furnaces

Method used

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  • A Method for Reducing Smoke and Dust in Regenerative Melting Furnace

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0014] Specific embodiment one: a kind of method for reducing smoke and dust in regenerative melting furnace furnace is finished according to the following steps:

[0015] 1. Turn on the exhaust fan I and the combustion fan C when the regenerative melting furnace is working;

[0016] 2. Open the furnace top exhaust system of the regenerative melting furnace, increase the frequency of the combustion-supporting fan C, and close the first natural gas reversing valve J and the second natural gas reversing valve K, so that the natural gas flows through the first natural gas inlet pipe L and the second natural gas reversing valve 2. There is no flow in the natural gas inlet pipeline M;

[0017] 3. Open the first flap E of the four-way reversing valve and the second flap H of the four-way reversing valve, close the third flap F of the four-way reversing valve and the fourth flap of the four-way reversing valve G, let the combustion-supporting fan C cool down the first regenerator O ...

specific Embodiment approach 2

[0024] Specific embodiment 2: the difference between this embodiment and specific embodiment 1 is: the frequency of the exhaust fan 1 in step 1 is 10 Hz. Other steps are the same as in the first embodiment.

specific Embodiment approach 3

[0025] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that the frequency of the combustion-supporting blower C in step 1 is 10 Hz. Other steps are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses a method of reducing smoke dust in a heat accumulating type melting furnace and relates to a method of reducing smoke dust. The invention aims to solve the problem that the effect of reducing smoke dust in the heat accumulating type melting furnace by an existing method is poor. The method comprises the following steps of: I, starting a smoke exhaust fan I and a combustionfan C when the heat accumulating type melting furnace works; II, starting a furnace top ventilating system of the heat accumulating type melting furnace to the frequency of the combustion fan C and closing a first natural gas switching valve J and a second natural gas switching valve K; III, opening a furnace door of the heat accumulating type melting furnace to dross when the temperatures of a first temperature measuring couple A and a second temperature measuring couple B are smaller than 80 DEG C simultaneously, reducing the frequency of the combustion fan C and improving the frequency of the smoke exhaust fan I, and discharging smoke dust in the heat accumulating type melting furnace through a smoke exhaust pipeline D; and IV, carrying out ignition production again after drossing. Themethod is suitable for reducing smoke dust in the heat accumulating type melting furnace.

Description

technical field [0001] The invention relates to a method for reducing smoke. Background technique [0002] The smoke exhaust system of the conventional regenerative melting furnace adopts the top exhaust system and the smoke exhaust hood principle when adding solvent or removing slag. This kind of smoke exhaust system has a large distance between the furnace bottom and the furnace. , When a large amount of smoke and dust is discharged, all the smoke cannot be sucked away well, resulting in a large amount of dust accumulation in the casting plant, damaging the environment and affecting the health of workers on site. Contents of the invention [0003] The purpose of the present invention is to solve the problem of poor effect of reducing smoke in regenerative melting furnace by existing methods, and provide a method for reducing smoke in regenerative melting furnace. [0004] A method for reducing smoke and dust in a regenerative melting furnace is accomplished in the follo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27D17/00F27D25/00
CPCF27D17/002F27D25/001Y02P10/143
Inventor 王骁睿王冬成金磊曹俊波王殿坤邹野周春波孙海波籍淑萍洪宇
Owner NORTHEAST LIGHT ALLOY CO LTD
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