Vetical cracking tower for cracking used tyre and recovering industrial carbon black and fuel oil

A technology for waste tires and fuel oil, which is applied in the petroleum industry, fibrous fillers, and the preparation of liquid hydrocarbon mixtures. It can solve the problems of difficult to adopt segmental heating, high inlet flue gas temperature, and lower heat transfer coefficient, etc., and achieve Guaranteed quality and safety, stable operation, and low energy consumption

Inactive Publication Date: 2003-01-15
ZHEJIANG UNIV
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  • Abstract
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Problems solved by technology

Due to the dynamic sealing problem of the large-diameter rotary cylinder in this structure, it is not easy to adopt a segmented heating method, and if only a single-stage heating method is used, the cracking reaction concentration area is the low temperature area of ​​the flue gas. A certain cracking temperature must have a higher inlet flue gas temperature
When the processing capacity increases and the length of the pyrolysis furnace body lengthens, the problem becomes more prominent
In addition, there is also a dynamic seal between the spiral belt on the outer wall of the body and the shell, and the flue gas flow rate in the cracking reaction is generally as high as 20m / s or more, so the flue gas is prone to short circuit, and the heat transfer coefficient will be greatly reduced if it is not properly controlled.

Method used

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  • Vetical cracking tower for cracking used tyre and recovering industrial carbon black and fuel oil
  • Vetical cracking tower for cracking used tyre and recovering industrial carbon black and fuel oil

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Embodiment Construction

[0012] The vertical pyrolysis tower used for pyrolysis of waste tires to recover industrial carbon black and fuel oil has a closed vertical tower body 9, and an upper scraping and stirring device 1, a tire feed port 10 and a pyrolysis gas outlet 2 are arranged on the upper end of the tower body. The upper hollow heating disc 3 and the lower hollow cooling disc 4 are arranged in sequence in the body, and are respectively connected with the flue gas distribution system 8 outside the tower body and the cooling water inlet and outlet header 7, and the lower scraping material is arranged under the tower body Stirring device 6 and carbon black outlet 5 at the bottom of the tower.

[0013] The hollow heating disk 3 on the upper part of the tower is a hollow heating disk arranged statically and alternately in size, wherein the center of the large disk has a large hole, the outer edge and the tower wall are provided with a small gap, the center of the small disk has a small hole, and th...

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Abstract

A vertical cracking tower for cracking used tyre and recovering industrial carbon black and fuel oil is composed of sealed vertical tower body, upper scrape stirrer, tyre feeding port, cracked gas outlet, upper hollow heating disc, lower hollow cooling disc, lower scrape stirrer and carbon black discharging port. Its advantages are convenient regulation and control, high quality and safety, liguht weight, and high crakcing performance.

Description

technical field [0001] The invention relates to a vertical cracking tower used for cracking waste tires to recover industrial carbon black and fuel oil. Background technique [0002] With the rapid development of the automobile industry, the number of scrap tires increases rapidly every year. Most of these waste tires are regarded as open-air dumps or simply landfilled and incinerated. The accumulation of waste tires not only takes up space and arable land, but also pollutes the environment, breeds mosquitoes, and infects diseases. At the same time, a large number of piles of waste tires have also buried hidden dangers for fires. Canada, the United States, Japan and other countries have reported fires caused by burning waste tires. Although landfill can avoid the occurrence of fire, it will reduce the cultivated land and pollute the groundwater. Incineration will increase the content of harmful substances such as carbon dioxide, nitrogen dioxide,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/48C10G1/10G01G1/10
Inventor 蒋家羚刘宝庆刘小龙陈柏川阳永荣
Owner ZHEJIANG UNIV
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