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Paint slag pyrolysis process and its device

A technology for pyrolysis and paint slag, applied in lighting and heating equipment, combustion methods, combustion types, etc., can solve problems such as the inability to effectively realize the harmlessness and recycling of paint slag, pollution, secondary pollution, etc. The effect of detoxification and recycling

Inactive Publication Date: 2018-03-30
缪卫东 +2
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, the landfilled paint slag may produce leachate, which has extremely complex components. In addition to toxic heavy metal ions, it also contains a large amount of harmful organic matter. After seeping into the groundwater, it will cause serious pollution. Although landfills are generally closed and isolated with anti-seepage materials , but considering the geological disasters that may occur in the long-term process, the possibility of leachate leakage is extremely high
The incineration method has the advantages of reduction, harmlessness, and resource utilization, but direct incineration of paint slag is not easy to feed, easy to cause pollution, and has a large calorific value loss, low utilization rate, and easy to cause secondary pollution
Therefore, neither the landfill method nor the incineration method can effectively realize the harmlessness and resource utilization of paint slag.

Method used

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  • Paint slag pyrolysis process and its device
  • Paint slag pyrolysis process and its device

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Embodiment Construction

[0018] Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. "About" in this application is only within 10% of the enumerated value.

[0019] The paint slag pyrolysis process of the present invention adopts discontinuous feeding, and the paint slag is burnt and pyrolyzed in the gasification furnace to produce combustible gases such as carbon monoxide, hydrogen, methane, propane, etc., which can be used as clean energy after purification to realize The dual purpose of paint sludge disposal and providing clean energy.

[0020] The paint slag pyrolysis process of the present invention includes three major steps of pyrolysis gasification, purification, and gas reuse, wherein,

[0021] (1) The pyrolysis gasification step comprises:

[0022] (1) Raw materials are preheated and dried, and the raw materials are put into the furnace body from the top of the pyrolysis furnace. During the top-down movement of the pr...

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Abstract

The invention discloses a paint slag pyrolysis process and a device thereof. The paint slag pyrolysis process comprises a pyrolysis and gasification step and a purification step. After being subjected to raw material preheating, drying, pyrolysis, cooling and discharging in a pyrolysis furnace, paint slag can be effectively pyrolyzed; and after purification is performed, harmless and recycling treatment of the paint slag is realized.

Description

technical field [0001] The invention relates to garbage treatment equipment, in particular to a paint slag pyrolysis device for treating waste paint slag. Background technique [0002] In the process of paint spraying, the effective coating efficiency of the paint is limited. Generally, when the ordinary air spray gun is used for operation, the coating efficiency is only 20% to 40%, while the coating efficiency of electrostatic spraying is 60%. Left and right, that is to say, only a small part of the paint is sprayed on the workpiece during the spraying operation, and most of the rest of the paint is splashed in the spray booth. At least 40% to 60% of the overspray paint mist is scattered during manual spraying. Electrostatic spraying More than 10% of the overspray paint mist will also be produced. During the paint spraying operation, the overspray paint mist condenses and sinks to form paint slag. At present, most domestic paint spraying processes use paint mist coagulant ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23G5/027F23G5/04F23J15/04
CPCF23G5/0276F23G5/04F23J15/04
Inventor 缪卫东杨宏波曹健
Owner 缪卫东
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