Plastic garbage treatment system

Abstract

A plastic waste treatment system, belonging to the field of waste treatment, including a pretreatment system, conveying equipment, additive adding device, cracking furnace, neutralization device, gas recovery system, condenser, oil-water separator, block production equipment, oil storage device ; The pretreatment system is installed at the feed port end of the conveying equipment; The conveying equipment is installed between the pretreatment system and the decomposition furnace; The cracking furnace is installed at one end of the discharge port of the conveying equipment; The neutralization device Installed above the cracking furnace; the gas recovery system is installed between the condenser and the cracking furnace; the condenser is installed on one side of the cracking furnace and connected; the oil-water separator is installed at the bottom of the condenser, the The block production equipment described above is installed on one side of the cracking furnace; it can realize the continuous cracking of multi-component plastic waste, and does not discharge any solid, liquid and gas that pollutes the environment during the cracking process, realizing the comprehensive utilization of plastic waste and saving energy characteristics.

Description

technical field [0001] The invention belongs to the field of garbage disposal, and in particular relates to a plastic garbage disposal system in a method for continuously processing and comprehensively utilizing plastic garbage. Background technique [0002] Plastic waste is one of the common wastes in daily production and life. Due to the difficulty of degrading plastic waste, the current methods of dealing with plastic waste mainly adopt landfill, combustion and cracking methods; the landfill method is to buy plastic waste underground, Due to its natural degradation, such a practice has a long time period, has a greater impact on the environment, and occupies land; the combustion method is to burn plastic waste, or burn it with other waste or materials, as power generation or other heat sources. After burning, a large amount of toxic gas will be produced, which will cause secondary pollution to the environment; the method of cracking is to put plastic waste into a cracking...

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Problems solved by technology

[0002] Plastic waste is one of the common wastes in daily production and life. Due to the difficulty of degradability of plastic waste, the current methods of dealing with plastic waste mainly use landfill, burning, and cracking; the landfill method is to buy plastic waste into the ground, By its natural degradation, this method takes a long time, has a great impact on the environment, and occupies land; the burning method is to burn plastic waste, or burn it together with other waste or materials as power generation or other heat sources. After burning, a large amount of toxic gas will be produced, which will cause secondary pollution to the environment; the cracking method is to put plastic waste into the cracking furnace, decompose the plastic again, and produce petroleum substances after decomposition, which can be reused as fuel or other raw materials; In the existing pyrolysis treatment method, there are the following problems. First, the existing complete continuous pyrolysis equipment has requirements for the composition of the plastic in the plastic waste, that is to say, the consistency of the plastic species in the plastic waste is required to be good. The proportion of plastic components needs to reach more than 85%, which can be achieved for countries or regions that do a good job in waste classification, but it is difficult for countries or regions that do not do a good job in waste classification or do not do it meticulously; if not If such composition requirements can be met, the existing pyrolysis equipment cannot realize the pyrolysis of plastic waste, and the equipment will not work at least, and the equipment will explode at worst; moreover, for the treatment method of discontinuous pyrolysis, a large amount of waste will be generated during the pyrolysis process. Toxic gases will still be discharged into the atmosphere, causing secondary pollution to the environment. At the same time, these toxic gases will produce strong acids when they meet water, which will cause serious corrosion of equipment and shorten the service life of equipment; third, due to the presence of different plastic components in cracking, cracking The temperature can only adapt to the pyrolysis temperature of a certain type of plastic, and it is impossible to crack the plastic waste in one pyrolysis furnace. At the same time, it is necessary to sort the plastic types, and the residue after pyrolysis is easy to stick to the furnace wall, causing damage to the cracking furnace. At the same time, cleaning the residue on the furnace wall will also cause secondary pollution to the environment; fourth, the existing plastic waste is sorted by crushing the plastic waste, which consumes a lot of energy and causes energy waste

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