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Carbonization cracking system for waste plastics

A cracking system and plastic technology, used in special forms of dry distillation, petroleum industry, preparation of liquid hydrocarbon mixtures, etc., can solve the problems of uneven heating, high energy consumption, insufficient raw material recycling rate, etc. The effect of temperature stabilization and energy reduction

Pending Publication Date: 2018-07-17
光大绿色环保技术服务江苏有限公司
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The pyrolysis furnace adopts independent burner heating or electric heating. This heating method consumes a lot of energy and has the problem of uneven heating, which makes the waste plastic particles in the cracking furnace insufficiently pyrolyzed, resulting in raw materials The recycling rate is not high enough

Method used

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  • Carbonization cracking system for waste plastics

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Embodiment Construction

[0016] refer to figure 1 , a waste plastic carbonization cracking system, including a cracking furnace 2 and a molten salt furnace 3, the cracking furnace 2 has an inner shell and an outer shell, the inside of the inner shell is a cracking chamber, a sealed cavity is formed between the inner shell and the outer shell, and the molten salt furnace The molten salt outlet and the molten salt inlet of 3 are all communicated with the sealed cavity through pipelines, and the inner shell of cracking furnace 2 has raw material inlet, carbon black outlet and oil gas outlet, and the raw material inlet of cracking furnace 2 is provided with sealed feeder 1, in The carbon black outlet of the cracking furnace 2 is provided with a sealed discharger 4, and the system also includes an oil-gas condenser 6, a booster fan 7, an oil-gas separation tank 8, a desulfurization tower 9 and a gas tank 10 connected in sequence through pipelines, and the cracking furnace 2 The oil and gas outlet of the ga...

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Abstract

The invention discloses a carbonization cracking system for waste plastics. The system utilizes a molten salt furnace to provide heating heat for a cracking furnace, so that a material in the crackingfurnace is continuously cracked, and a combustible gas generated by cracking of the material is used as a fuel of the molten salt furnace to maintain continuous heating of the molten salt by the molten salt furnace; the molten salt circularly flows in the cracking furnace and the molten salt furnace, so that a cracking chamber is heated continuously; and because a specific heat capacity of the molten salt is larger, the molten salt has a temperature of about 500 DEG C when flowing out from the molten salt furnace, and the molten salt has a temperature of about 480 DEG C when flowing back to the molten salt furnace, a cracking temperature difference is only about 20 DEG C, so that the entire carbonization cracking process is performed in a very stable temperature range. According to the system provided by the invention, in the above way, firstly, the material can be fully cracked; and secondly, the combustible gas generated by cracking is directly utilized, so that the molten salt furnace does not need to consume an external combustible gas, energy consumption of the carbonization cracking system is reduced, and a utilization rate of the material is improved.

Description

technical field [0001] The invention relates to the technical field of waste recycling, more specifically, it relates to a carbonization and cracking system for waste plastics. Background technique [0002] Waste plastic is a polymer material, which is non-melting or refractory, strong heat resistance, mechanical resistance, and biological resistance, so it is difficult to degrade in the natural state, and it will not disappear naturally for decades. If it is piled in the open air for a long time, it will not only It will occupy a large amount of land, and it is very easy to breed mosquitoes, spread diseases, cause fires, and pollute the environment. It is one of the most harmful industrial wastes. [0003] Waste wheel plastic is mainly composed of synthetic rubber and natural rubber, anti-aging agent, carbon black, plasticizer, sulfur and other organic and inorganic substances. These substances have high economic value, so there is a huge market for the reuse of waste tires...

Claims

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Application Information

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IPC IPC(8): C10B53/07C10G1/00C10B57/12
CPCC10B53/07C10B57/12C10G1/00C10G2300/1003Y02P20/143
Inventor 杜可越计可民唐培琳乔晓栋
Owner 光大绿色环保技术服务江苏有限公司
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