In fact, the plastic to oil conversion process can be also understood as plastic pyrolysis process. At the same time, it is important for us to buy a set of plastic to oil conversion plant. This plant can convert these waste plastics(such as PP, PE, PS, ABS and pure white plastic sheeting; But PET can’t be the raw material for pyrolysis) into fuel oil and carbon black.
The working process of continuous plastic to oil conversion plant:
Pretreated plastics will be conveyed to the moving horizontal pyrolysis reactor through feeder system, it starts to pyrolysis and oil gas will be generated when temperature up to 500 degrees. Then the oil gas will be cooling down by spray cooling system, it would be liquefied, go into the oil tank. And at the same time, some uncondensed gas come into hot air circulation heating system by secondary fire retardant damper, it will be recycled for heating reactor as gas material. Exhaust gas go to the strong spray dedusting system for removing pollution, then let environmental gas go to the air. The pyrolysis slag emissions and recycled through second sealed discharging system.
The final products from plastic pyrolysis can be pyrolysis oil, carbon black and some combustible gas. And they all have a wide range of applications. (1)pyrolysis oil can be used as industrial fuel material for burning or can be further purified to diesel or gasoline. The carbon black can be used as fuel or further processed into N330 carbon black by carbon black processing machine. The combustible gas can be reused as fuel to heat the reactor, which will save energy for the whole plastic pyrolysis process. And the following is the raw material analysis report:
|pure white plastic||60%-70%|
|fishing net, safety net||45%-50%|
|daily life rubbish||30%-50%|
|pure plastic cable||60%-80%|
|pure purchase bag||50%|
The continuous plastic to oil conversion plant adopts the screw feeding sealing system technology, which is hold by the company’s invention patents, hot air heating furnace circulating heating technology, heat drying technology with high heat exchange efficiency and capacity. Impeccable electrical control system save labor costs. Three waste utilization reasonable recovery can basically realize of zero emissions, safety and environmental protection.
Waste gas recycling technology: About the dust gas, we adopt secondary treatment processes. Firstly, flue gas will be cooling down, then conveyed to strong atomization tower with diameter 1 meter height 3 meters through draft fun. Flue gas coming into strong atomization power would be dedusted with ceramic ring, then it passed by strong spray layer, and in the last, most gas stayed in the mesh material lay, and few steam into chimney emissions. If adding alkaline substances into water, some sulfur, and chlorine gas will be neutralized, salt generated then solidify for recycling.
About the control of Dioxin, furnace producing few cracked gas into hot blast stove for combustion, temperature of hot blast stove up to 1000 degrees, at this temperature dioxin will decomposition and disappear, a small amount of dioxin will generated again in the process of furnace heating and for removal dioxin, activated carbon adsorber and bag type dedusting device would be equipped with strong spray tower for adsorption of dioxins. Therefore, the equipment is basically no dioxin emissions.
Waste liquid treatment scheme: The water consumption of this equipment is very small, which is mainly used to flue gas purification and waste gas purification. The water will be acidic after absorbing the acid, however, the water will be recycled after alkali neutralization sedimentation. The small amount of salt from settlement generated can be harmless natural degradation.
Waste solid treatment scheme: The slag from the pyrolysis reactor, can be used as burdening for building material. The steel wire from the tires can be directly recycled for using.
Beston plastic to oil machines mainly include BLJ-06, BLJ-10, BLJ-16 and BLL-20. Both BLJ-06 and BLJ-10 are batch type, only BLJ-16 is semi-automatic type, while BLL-20 belongS to continuous type. And their daily capacity rang from 6MT to 10MT. The following table is the detailed parameters:
|Working Method||Batch||Semi-Continuous||Fully Continuous|
|Raw Materials||Waste Plastic, Tyre, Rubber, Oil Sludge|
|Pattern||Horizontal & Rotary|
|Heating Materials||Charcoal, Wood, Fuel Oil, Natural Gas, LPG, etc.|
|Floor Area (L*W*H)||30*10*8m||30*10*8m||40*10*8m||45*25*10m|
|Operating Pressure||Normal Pressure||Constant Pressure|
|Cooling Method||Water Cooling|
|Life span||5-8 Years|