Plastic rubbish sorting equipment

Abstract

The invention discloses plastic rubbish sorting equipment which is applied to a plastic rubbish treatment system. The plastic rubbish sorting equipment comprises a machine frame, a shell, a conveying belt, a material shifting wheel, a sorting wheel, a feeding wheel, a crushed material discharging outlet, a stone block discharging outlet and a plastic discharging outlet. The machine frame is installed on an equipment foundation. The shell is installed on the machine frame. The conveying belt is installed at one end of the machine frame. The material shifting wheel is installed on the machine frame. The sorting wheel is installed on the machine frame. The feeding wheel is installed on the machine frame. The crushed material discharging outlet is installed in the shell. The stone block discharging outlet is formed in the shell. The plastic discharging outlet is formed in the shell, is located on the upper oblique side of the rear portion of the feeding wheel and is in butt joint with an inlet of the conveying device. The plastic rubbish sorting equipment has the characteristics that sorting is clear, energy can be saved, and the plastic rubbish sorting function of the plastic rubbish treatment system can be achieved.

Description

technical field [0001] The invention belongs to the field of garbage treatment, in particular to a plastic garbage sorting device in a plastic garbage treatment system in a method for continuously treating 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 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 ...

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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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