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Device for carrying out high-temperature treatment on carbon black in oxygen-free state

A high-temperature treatment and carbon black technology, applied in the direction of fibrous fillers, etc., can solve the problem of reducing the content of polycyclic aromatic hydrocarbons in carbon black

Pending Publication Date: 2021-02-23
烁元新材料(东营)股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, polycyclic aromatic hydrocarbons have carcinogenic properties and are harmful substances controlled by international organizations such as the European Union. Therefore, how to reduce the content of polycyclic aromatic hydrocarbons in carbon black and produce carbon black products with lower polycyclic aromatic hydrocarbons has become a need for the carbon black industry. Technical issues resolved

Method used

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  • Device for carrying out high-temperature treatment on carbon black in oxygen-free state

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Effect test

Embodiment 1

[0034] Such as figure 1 As shown, a device for high-temperature treatment of carbon black is provided in the anaerobic state, including a feed screw 2, a distillation furnace, and a condensation collection device. The discharge end of the feed bin 1 is connected to the feed screw 2 through a regulating valve The feed port is connected, the discharge port of the feed screw 2 is connected to the inlet end of the distillation furnace, the feed screw 2 is sealed and connected with the furnace body, and the distillation furnace 2 includes a furnace cavity, a furnace wall with a jacket and a furnace wall connected to the furnace wall. The first combustion furnace 5 and the second combustion furnace 6, the first combustion furnace 5 and the second combustion furnace 6 provide a certain temperature to the furnace wall by burning natural gas, and the elastic support is designed in the distillation furnace to ensure that the equipment shell is kept at 300°C for a long time. Continuous h...

Embodiment 2

[0037] Such as figure 1As shown, a device for high-temperature treatment of carbon black is provided in the anaerobic state, including a feed screw 2, a distillation furnace, and a condensation collection device. The discharge end of the feed bin 1 is connected to the feed screw 2 through a regulating valve The feed port is connected, the discharge port of the feed screw 2 is connected to the inlet end of the distillation furnace, the feed screw 2 is sealed and connected with the furnace body, and the distillation furnace 2 includes a furnace cavity, a furnace wall with a jacket and a furnace wall connected to the furnace wall. The first combustion furnace 5 and the second combustion furnace 6, the first combustion furnace 5 and the second combustion furnace 6 provide a certain temperature to the furnace wall by burning natural gas, and the elastic support is designed in the distillation furnace to ensure that the equipment shell and body are kept at 300 ° C for a long time Co...

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Abstract

The invention relates to a device for carrying out high-temperature treatment on carbon black in an oxygen-free state. The device comprises a feeding screw, a distillation furnace and a condensation collecting device. According to the invention, carbon black enters the distillation furnace through a feeding device, is subjected to high-temperature distillation, is discharged through a dischargingdevice, is cooled through a cooling device, and then is packaged, and waste gas generated by distillation is treated into clean gas by a condensing and filtering device and then is recycled by a recycling device, and the interior of the distillation furnace is kept in an oxygen-free state all the time by an inert gas filling device, so that the thorough desorption of polycyclic aromatic hydrocarbon on the surface of the carbon black is realized, and the toxicity of the carbon black and the harm to a human body are reduced.

Description

technical field [0001] The invention belongs to the technical field of carbon black production, and relates to a device for high-temperature treatment of carbon black in an oxygen-free state. The carbon black is subjected to distillation treatment to remove polycyclic aromatic hydrocarbons on the surface of the carbon black, so that the surface of the carbon black is polycyclic. The complete desorption of aromatic hydrocarbons completely reduces the toxicity of carbon black and the harm to human body. Background technique [0002] Carbon black is an important chemical raw material. It not only has strong reinforcement and wear resistance, it is used in rubber, and is also widely used in daily necessities such as inks, coatings, and paints. Sometimes carbon black is also used in food tableware, kitchen utensils and other fields. In such cases, carbon black is required to have low toxicity and minimum polycyclic aromatic hydrocarbon content to prevent harm to the human body. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/56
CPCC09C1/56
Inventor 王卫东王志文吴伟
Owner 烁元新材料(东营)股份有限公司
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