Technique for realizing ultralow emission of glass kiln smoke

A technology for glass furnace and furnace smoke, which is applied to the purification process of glass furnace smoke and the process field of ultra-low emission of glass furnace smoke, can solve the problems of easy sticking bags, easy back corona, high operating costs, etc. The effect of catalyst poisoning, improving dust removal efficiency and reducing corrosiveness

Active Publication Date: 2016-10-12
AEROSPACE KAITIAN ENVIRONMENTAL TECH CO LTD
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of the existing glass kiln fume purification process, there are disadvantages of easy bag sticking, and high-temperature electrostatic precipitators are prone to back corona, low voltage, low current, spark overfrequency, short-circuit power failure, and efficiency decline after a period of operation. Short, high ope

Method used

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  • Technique for realizing ultralow emission of glass kiln smoke
  • Technique for realizing ultralow emission of glass kiln smoke
  • Technique for realizing ultralow emission of glass kiln smoke

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Embodiment 1

[0032] The specific flue gas conditions of the glass kiln project of the 650t / d production line fueled by petroleum coke are shown in the table below:

[0033]

[0034]

[0035] 480°C high-temperature furnace smoke at the outlet of a glass furnace, SO 2 The content is 4200mg / Nm 3 , NO x Content 3000mg / Nm 3 , dust concentration 1000mg / Nm 3 , fluoride concentration 100mg / Nm 3 , when the GGHⅠ effect drops to 230°C, when the bag is used for the first time and after each pulse cleaning, the active Al is sprayed by the powder adding device 2 o 3 powder, to coat the bags in the baghouse with Al 2 o 3 Powder, as anti-sticking agent. The powder injector is controlled by a solenoid valve, and Al is intermittently sprayed into the flue. 2 o 3 powder, the spoiler is set in the flue to make the flue gas and Al 2 o 3 The powder is mixed well. Fluoride in flue with Al 2 o 3 powder reaction while Al 2 o 3 After the powder is mixed with the flue gas, the viscosity of the...

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Abstract

The invention discloses a technique for realizing ultralow emission of glass kiln smoke. The technique comprises the following steps: purifying the flue smoke generated by the glass kiln by adopting a flue smoke purifying system; after exchanging heat with GGH I and cooling, guiding the flue smoke generated by the glass kiln into a bag-type dust collector for removing dust; after exchanging heat with GGH I and heating, guiding the flue smoke after being de-dusted into a SCR reactor for denitration treatment; recycling the waste heat of the denitrated flue smoke through waste heat boiler and using for generating electricity or preheating air required by kiln; after exchanging heat with GGH II and reducing, guiding the flue smoke from the waste heat boiler into a wet desulfurization tower for desulfurization; after exchanging heat with GGH II and heating, emitting the desulfurized flue smoke through a chimney. The technique has the advantages of high efficiency, stability, low cost and capability of realizing deep purification and ultralow emission of the glass kiln smoke.

Description

technical field [0001] The invention relates to a glass kiln smoke purification process, in particular to a process for realizing ultra-low discharge of glass kiln smoke through a reasonably designed furnace smoke purification system, and belongs to the technical field of flue gas treatment and purification. Background technique [0002] With the particularity and complexity of my country's national economy, it often leads to abnormal development of denitrification, desulfurization and dust removal. The glass industry develops rapidly, and glass has become an important building material in the construction of the national economy. Glauber's salt, soda ash, etc. are added in the glass production process, resulting in complex flue gas components. It has a great influence on denitrification, desulfurization and dust removal. Kiln dynamic fire change. The fire of the glass kiln is changed every 20 minutes. During the process of changing the fire, sulfur dioxide, particulate ma...

Claims

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Application Information

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IPC IPC(8): B01D46/02B01D53/83B01D53/86B01D53/78B01D53/56B01D53/50B01D53/68F22B1/18
CPCB01D46/0041B01D46/023B01D53/50B01D53/685B01D53/78B01D53/8625B01D2258/0283F22B1/1884
Inventor 贺长江胡永锋刘彰
Owner AEROSPACE KAITIAN ENVIRONMENTAL TECH CO LTD
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