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Daily treatment of 50 tons of waste plastic converted into clean energy

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2023.07.20
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Project Proposal


Construction unit:

Technical unit: Sichuan Sound Environmental Group Co., Ltd

Compilation date: July 2023

catalogue

1、 Project Overview one

2、 Project Background one

3、 Existing processing technology two

4、 Project Technical Introduction two

5、 Project Technical Rationale three

1. Concept

2. Characteristics

3. Advantages

6、 Production of the project six

6.1 Production Process Description

6.2 Products from waste plastic treatment eight

7、 Environmental Protection of the Project eight

1. No wastewater

2. No toxic or harmful gases

3. No solid waste

4. Tail gas treatment

8、 Production of all items eight

9、 Material energy balance nine

10、 Economic benefits nine

1. Processing capacity

2. Economic Analysis

11、 Scope of application of technology ten

12、 Conclusion: eleven

Attachment: twelve

1、 Project Overview

Project Name: Daily processing of 50 tons of waste plastic to convert into clean energy;

Project nature: New construction or renovation;

Construction unit:

Construction address:

The project covers an area of approximately 6 acres

The factory area is about 1800 square meters, and the auxiliary building area for office and living is about 800 square meters;

Power distribution: 200kV A;

Water usage: Domestic water for 20 people, no production water required;

Estimated total investment: 20 million yuan;

The total investment sub item is: equipment 12.5 million yuan; 3.5 million yuan for the house (workshop), 1 million yuan for the rest, and 3 million yuan for working capital;

Annual output value after reaching production capacity: 19.35 million yuan;

Annual profit: 10.98 million yuan;

Annual corporate income tax (tax rate at 25%): 2.745 million yuan;

Employment positions: 16.

The technical process and prototype of this project have been tested on a large scale by the inventor in Guanghan City, and all data are better than the pre test design, which has been a complete success. As it is an international and domestic innovative technology, the initial design stage of this project is an experimental base. Through experiments, the technical party (patent holder) Sichuan Sound Environmental Group Co., Ltd. organized and invited relevant experts to review and certify, and after the review and approval, it was officially put into production.

2、 Project Background

At the beginning of the last century, humans invented and made the first product called plastic, and the plastic industry began its vigorous development, playing a positive role in promoting the development of the electrical and instrument manufacturing industries. Since the 1940s, with the development of science, technology and industry, polyethylene, polypropylene, unsaturated polyester, fluoroplastics, Polyoxymethylene, polycarbonate, polyimide and so on have appeared in the plastic varieties.

The history of plastics is only over a hundred years, but the impact of this material on the world is very profound. On the one hand, it has extensive practicality, and on the other hand, it is difficult to degrade and damage the human ecological environment. The inventor of plastic chose to commit suicide to "die" due to guilt. Faced with the pain of plastic, humans are actively exploring solutions.

Plastic is widely used in various industries such as industry, agriculture, medical treatment, construction, transportation, and human daily life, bringing many conveniences, and even cannot be left. However, the difficulty of plastic degradation has led to many abandoned "plastic mountains" in the sea and land. Waste plastic treatment has become a worldwide problem, especially the "Microplastics" produced in the process of waste plastic decomposition, which are widely scattered in water, soil and air in all corners of the world. Humans currently do not have the processing capacity or pollution control standards in this area. However, at present, terrible "Microplastics" content has been detected in human viscera, blood, fish and land animals, and it is preliminarily determined that many strange diseases and strange appearances are related to this. Waste plastics have seriously threatened the survival safety of life on the earth. Some scientists predict that waste plastics will become one of the greatest disasters of mankind in this century.

3、 Existing processing technology

There are currently roughly four methods for disposing of waste plastics: landfill, incineration to recover thermal energy (waste for power generation), recycling and regeneration, and pyrolysis conversion. This technology belongs to the conversion of anaerobic cracking into clean energy.

1. Landfill, which occupies a large amount of land for a long time, also brings serious pollution to the environment, especially soil and groundwater, due to its impurities, additives, stabilizers, and colorants.

2. Incineration and recycling of thermal energy (waste power generation) requires a large investment and long construction period, and can generate a large amount of harmful gases such as dioxane and dioxins, causing serious air pollution. Further treatment of harmful gases requires a long follow-up process, high comprehensive costs, and low thermal energy utilization rate, wasting resources.

3. Recycling and regeneration only extend the service life of plastic products, but ultimately they will become "waste plastics".

4. Cracking conversion: This technology does not require strict classification of waste plastics, cleaning, and impurity removal. The front-end treatment is simplified, making it particularly suitable for the treatment of mixed waste plastics. It can purify the environment and develop new energy, ultimately transforming waste plastics into valuable clean energy, achieving re circulation and improving economic benefits.

4、 Project Technical Introduction

The Pyrolysis process has been mature, but there is no mature technology for Pyrolysis of waste plastics at home and abroad. For example, the coking problem of the Pyrolysis reactor (reactor or pyrolysis furnace), the corrosion of the equipment and the pollution of the atmosphere caused by the Hcl produced by PVC, the low oil gas rate and poor oil quality of the differences in the pyrolysis temperatures of various plastics in the mixed waste plastics, the continuous large-scale industrial treatment and the dynamic and static sealing of the incoming and outgoing materials have become the technical bottlenecks of the Pyrolysis of waste plastics.

This process is a patent chain consisting of nearly 30 national invention patents and utility model patents. The pioneering new equipment of "continuous anaerobic pyrolysis furnace" has achieved continuous industrial and clean production of pyrolysis process without any harmful substance emissions, perfectly solving all technical bottlenecks of "waste plastic pyrolysis oil conversion". It is an international and domestic first and a historic innovation in pyrolysis technology.

5、 Project Technical Fundamentals

1. Concepts

The "ultimate" treatment of waste plastics is the process of reduction and recombination, which is based on the principle of thoroughly cracking the original high polymer macromolecules of waste plastics to return them to the low phase molecular weight state or monomer state. Its main manifestation is: C-C bond fracture, accompanied by C-H bond fracture; The thermal effect is a Endothermic process, that is, by providing energy greater than the bond energy of C-C bond, two free radicals are generated after the C-C bond is broken:

(RR) n Heating nR ※+nR ※ generates two small molecular radicals (through the hydrogenation of lanthanum and vanadium) to capture hydrogen from the raw materials, which itself becomes alkane alkenes, and the raw materials become free radicals, and the two free radicals are combined, and the Chain reaction is terminated. The pyrolysis reaction of waste plastics belongs to the reverse reaction process of plastic polymer production. Unlike traditional chemical reactions, it belongs to the decomposition and polymerization process between similar molecules, and no other molecules participate in the chemical reaction. The basic principle of "waste plastics oil treatment" is to use heat as energy to lead to the change of molecular chemical potential energy, transform from high molecular weight to low molecular weight, and under the action of special catalyst, make this transformation towards the required production direction. The so-called ultimate treatment process of waste plastics is the process of reducing gases and inert gases isolating oxygen molecules under the protection of nitrogen, and decomposing them into low molecular fuel oil, combustible gases, and coke upon heating. Transforming low value waste plastics that cause significant pollution to the ecological environment into clean energy components.

2. Characteristics

(1) The unique "pyrolysis furnace" has a fixed body, and the materials are mechanically propelled by dedicated impellers inside the furnace. The "furnace" is heated outside, which ensures uniform heating and high heat exchange efficiency, and good sealing performance. By rotating the impeller in the furnace, the molten waste plastic during pyrolysis is heated in motion, ensuring uniform heat transfer and continuously separating the gaseous hydrocarbons and solid residues that have already been pyrolyzed during melting, thus avoiding the accumulation and coking of solid residues in the furnace. Due to the continuous movement of the impeller and the continuous mechanical cleaning effect, the inner wall of the furnace body will never coke. Due to pyrolysis during movement, a "continuous" treatment was achieved.

(2) The first catalytic pyrolysis process is to mix a certain proportion of special catalysts with waste plastics for heating Pyrolysis and catalytic cracking at the same time. The application of "modified catalysts" enables the conversion of hydrocarbon molecules of waste plastics from large molecules to small molecules, and more importantly, the conversion is to respond to the development of required products (fuel components), And improve its quality (Octane rating, Cetane number) and yield.

(3) Nitrogen protection: The composition of waste plastic is very complex, and the impurities it brings, as well as the additives, stabilizers, and colorants it contains, when heated and in contact with oxygen, will produce a large amount of harmful gases such as dioxane. At high temperatures, oxygen and hydrocarbons will react violently, causing ignition and explosion, causing unsafe hazards. Pyrolysis of waste plastic in an oxygen free environment, with oxygen content detection and nitrogen replacement installed in the incoming and outgoing materials. Under normal pressure, the entire pyrolysis process is under nitrogen protection, completely isolating contact with oxygen, achieving both safety and environmental protection; The equipment is simplified and the reaction is mild.

3. Advantages

The technical process of this project fully meets and exceeds the requirements of the announcement issued by the Ministry of Industry and Information Technology, the Ministry of Science and Technology, and the Ministry of Ecology and Environment on December 25, 2020. The following table shows:

Three requirements:

Waste plastic atmospheric pressure cracking fuel technology

Technical indicators:


Maximum reaction temperature ≤ 430 ℃; Operating pressure ≤ 0.01Mpa; Single kettle processing capacity>2.5t/d; Oil yield ≥ 75%; Power consumption<300kW. h/t; Dioxin emission concentration ≤ 0.1ng-TEQ/Nm3; Noise ≤ 50dB (A).

Clean production transformation of waste plastics.


(Traditional single kettle production)

This project:


Clean energy production line for continuous cracking of waste plastics at atmospheric pressure

Technical indicators:


Cracking temperature 350 ± 25 ℃; The maximum working pressure of cracking is ≤ 0.01Mpa; The processing capacity of a single set of equipment is 50T/d; The oil yield is 30-75% (depending on the variety of raw materials and impurity content); No dioxin emissions, noise<30db.

No sorting, cleaning, and no distinction between plastic types.


(Innovative Continuous Production)

Comparison of Pyrolysis processes:

Serial Number

Comparison project

 Process of this project

Domestic (such as Henan and Shandong) craftsmanship

   Process of a listed company

1

Working mode

Continuous uninterrupted

Intermittent

Continuous production of single furnace

2

Processing objects

All organic synthetic solid waste, such as waste tires, waste plastic synthetic woven fabrics, etc., are not sorted or cleaned.

Only waste tires can be disposed of, and waste plastics cannot be disposed of.

Only waste tires can be disposed of, and waste plastics cannot be disposed of.

3

feeding method


Fully automatic feeding, fully enclosed pipeline transportation, automatic metering, noise free, clean production; Online oxygen measurement in the silo, nitrogen replacement to ensure oxygen free feeding.

Manual or borrowed mechanical whole tire propulsion; Steel wire and carbon black are manually or mechanically pulled out, resulting in dust pollution and time-consuming labor.

Automatic, high-temperature discharge (350 ℃) cooling method.

4

Discharge method

Continuous high-temperature discharge without interruption, equipped with a water-cooled temporary storage bin, water-cooled vertical conveying, without dust pollution.


Automatic, high-temperature discharge (350 ℃) cooling method.

5

Fluctuation pyrolysis catalytic tube furnace

Continuous production without interruption. It can also be turned off at any time.


1. Composed of special materials, resistant to temperature, wear, and corrosion.


2. Mechanical fluctuation and uniform heating.


3. Mechanical cleaning.


4. High single machine output, 2000kg-3000kg/h.


6. Catalytic low-temperature pyrolysis enhances activation and condensation, hydrogen transfer, and energy efficiency.

1. Single furnace body ф 2600X6600, 30m ³, Small volume, can hold up to 8 tons of tires, daily production capacity 8-12 tons, annual processing capacity<4000 tons:




2. The entire tire is heated unevenly and consumes high energy.

Single furnace, low output, 600kg/hour continuous production for 24 hours, 14.4 tons/day, annual processing capacity of about 4500 tons, high energy consumption.

6

Heating method  


Hot air exchange, controllable temperature, uniform heating, low energy consumption, and long furnace life.

Direct heating, large temperature difference at local high temperatures, and easy coking and wall sticking affect the service life of the furnace body.

Unknown

7

piping

The main pipeline is equipped with a nitrogen cleaning device and a "blocking tank", which is not easy to block and clean.

Easy to block

Unknown

8

catalytic upgrading

The special upgrading catalyst can improve the desulfurization and deodorization of oil quality, increase the flash point Cetane number, and improve the quality of diesel fractions.

not have

not have

9

Nitrogen production and filling

Add a nitrogen production and nitrogen filling process, which is oxygen free pyrolysis without the generation of dioxins, continuously producing carbon at high temperatures, safe and reliable.

not have

not have

10

Photooxygen UV treatment

The combustion waste gas from the cracking furnace has added UV treatment technology for military to civilian conversion, resulting in emissions far below national standards, truly achieving micro emissions and zero pollution.

not have

not have

11

Exhaust gas utilization

Waste heat from combustion is used for drying raw materials; The production line does not consume external energy, and the excess exhaust gas (combustible gas) is used to generate electricity for other production or applications. (Disposing of one ton of waste plastic can utilize approximately 200 m3 of combustible gas)

Only partially utilized, exhaust free fashion requires external energy.

Already utilized

12

control

Remote control, online detection, on-site robot operation.

manual

automatic control

13

engineering design

Modular combination, in accordance with (HG/T20688-2000) and (HG/T20519-2009) chemical process design

not have

Unknown

6、 Production of the project

The production of this project is a typical intelligent clean production process, where 2-3 workers per shift can operate a single set and 2 sets of production lines.

6.1 Production process description

6.1.1 Pretreatment

Remove metal impurities such as iron wire and sheet metal, and the equipment is an electromagnet type permanent magnet.

B crushing, usually broken into about 50mm2, equipped with a standard shredder.

C removes moisture and maintains a moisture content below 5%. The equipment is equipped with a built-in dryer and uses pyrolysis waste gas as a heat source.

6.1.2 Pyrolysis

A feeding: There is a feeding bin at the front end of the furnace, where pre processed dry materials are fed into the bin and mixed evenly with the cracking catalyst in proportion. The air in the bin is replaced by nitrogen, and the oxygen content in the bin is almost zero. The materials and catalyst in the bin are continuously fed into the "furnace" by machinery, completing the closed and oxygen free continuous feeding process.

Pyrolysis: The first stage of the pyrolysis process is "preheating and primary melting". After being heated, water evaporates and enters the recycling system; The latter stage mainly focuses on melting. Under the action of a pyrolysis catalyst, the first step is the precipitation of PVC molecules → Hcl+small molecule hydrocarbons. Taking PVC (polyvinyl chloride) as an example, over 99.5% of the chlorine is decomposed, and the remaining material is mainly hydrocarbons; The third paragraph "thorough pyrolysis" results in the cleavage of the C-H main bond, resulting in the formation of small olefin molecules. The diameter of the "furnace" varies depending on the production requirements, all of which use blade propulsion. The "blade" continuously moves, not only providing power for the movement of materials in the furnace, but also constantly flipping the materials to promote uniform heating, accelerate pyrolysis speed, and accelerate the separation of gas hydrocarbons and solid residues. Due to the outer diameter of the "blade" being slightly smaller than the inner diameter, it plays a mechanical cleaning role, ensuring that there is never coking inside the "furnace body". The heating method uses hot air outside the "furnace" for heating, with automatic temperature control in the hot air furnace. The heat source is the non condensable gas generated by the furnace (mainly composed of methane), and the low molecular oil fraction distilled from the pyrolysis enters the back-end "oil forming system" through the oil and gas pipeline. The solid residue (mainly composed of carbon, containing inorganic substances without cleaning waste plastic and a small amount of catalyst residue) is pushed and moved through the "blades", and discharged into the "water cooled" carbon residue collection tank, Transport to the temporary storage bin. Complete the entire process of ultimate disposal of waste plastics.

Heating of furnace C: The "continuous catalytic pyrolysis furnace" does not require external heat sources. During the pyrolysis process of waste plastics, a small amount of hydrocarbons below C4 exist in a gas state that cannot be liquefied. After purification, they serve as the "pyrolysis" heat source (mainly composed of methane) and are self-sufficient. The excess part can be used for power generation or as a heat source for boilers or daily use.

D oil generation system: The low molecular weight oil and gas distilled from the "pyrolysis furnace" enters the "oil generation system" through oil and gas pipelines Gas solid separation, which separates a small amount of carbon black particles suspended in oil and gas The relatively clean oil and gas enters the catalytic tower and is reformed and upgraded through a special "upgrading catalyst" to improve the quality of oil fractions, flash point and Cetane number, so as to improve the quality of oil. ③ Oil and gas enter the heat exchange system to obtain a mixture of liquid oil and water, which is then separated by a dedicated oil-water separator for water recycling, with oil as the main product.

The "combustion waste gas" generated by the heating of the "pyrolysis furnace" contains high calorific value. Firstly, the pre-treatment system "dryer" is introduced as the heat source for the "dryer" to heat the waste plastic, remove its moisture, and then undergo dechlorination, desulfurization, and metal photosynthesis to achieve standard emissions. This is the only exhaust point in the entire process, and the emission results are much better than the national regulations of the "Comprehensive Emission Standards for Boiler Air Pollutants" (GB13271-2014) and "Emission Standards for Odor Pollutants" (GB14554-1993).

6.2 Products from waste plastic treatment

The utilization rate of waste plastic Pyrolysis treatment is more than 99%, and the water removed is almost all used.

1. The liquid fuel oil (commonly known as crude oil) generated after treatment accounts for 30% -75% (determined by the type and impurity content of waste plastics), which can be directly sold as diesel feed oil to professional refineries, or further refined and purified into clean diesel (national standard 5 or above). This project is designed to directly sell crude oil.

2. Solid carbon slag accounts for about 15% -25%, determined by the type of raw material and impurity content. Its main component is carbon, which is high in carbon content due to the lack of carbon element loss during the pyrolysis process. It is a high-quality solid fuel with a heat generation of over 6000 kcal and can be sold directly.

3. The purity of combustible gas is very high, and the main component is alkane hydrogen combustible gas (similar to methane) below C4. It is used as a pyrolysis heat source for personal use, and the excess part can be used for household gas, gas boilers, or power generation. In addition to equipment use, there is about 200m3 of surplus gas generated from the pyrolysis of waste plastics per ton.

7、 Environmental protection of the project

1. No wastewater

By using this equipment, waste plastic does not need to be classified or cleaned, avoiding water pollution. The entire process does not generate wastewater, and the cooling water is used in a closed loop without being discharged.

2. No toxic or harmful gases

The disposal process is carried out in an oxygen free and enclosed environment, without contact with oxygen (air), and without producing dioxins and other harmful gases.

3. No solid waste

After anaerobic cracking of waste plastic, in addition to producing fuel and gas, the remaining residue is mainly composed of carbon, which is a high-quality solid fuel with a calorific value of over 6000 kcal. It can be directly sold as a finished product.

In summary, all treated waste plastics are converted into liquid, gas, and solid three-phase clean energy.

4. Tail gas treatment

The emission of the supporting small heating furnace (2 million kcal, dual purpose oil and gas) is the only emission point of the entire equipment. The exhaust gas displacement is similar to the emission of natural gas from cooking in a 30 person canteen. The combustion exhaust gas is treated through desulfurization, dechlorination, and "titanium dioxide metal photosynthesis", Ensure that the emission of combustion waste gas meets and far exceeds the national regulations of the "Boiler Air Pollutant Emission Standard" (GB13271-2014) and the "Odor Pollutant Emission Standard" (GB14554-1993).

8、 Production safety

1. This device operates in a relatively closed and independent environment, with high automation and intelligent remote control, which is beneficial for safe operation.

2. The key equipment of this device adopts high-quality high-temperature, corrosion-resistant, and wear-resistant special materials, with a long service life and minimal maintenance.

3. The Storage tank is made of special materials. Even when the temperature outside the tank is up to 1300 ℃, the tank can still maintain normal temperature, which can avoid the danger of fire. Simultaneously producing oil products must be transported away in a timely manner.

4. The Pyrolysis temperature of this technology is low (<400 ℃), which is atmospheric pressure cracking, does not produce high pressure, and the furnace surface temperature is less than 45 ℃. At the same time, it is equipped with temperature, pressure electric display and digital display dual display, explosion-proof flame retardant, overpressure automatic control dual protection device, good grounding and Antistatic device, etc. The equipment has superior safety performance.

5. Adopting advanced dynamic and static sealing technology and sealing materials can ensure that there is no leakage during equipment operation.

6. This process adopts the continuous operation of the entire process "nitrogen protection" process, ensuring production safety. The design references international advanced technology and is the first in China.

9、 Material energy balance

The material balance, energy balance, and water balance are as follows:

① Material balance: in this process, the reactants are only plastic polymers formed under Pyrolysis: light oil (crude oil), gas (methane, ethane) and carbon black, and the reaction materials are completely balanced. The auxiliary materials for the reaction are catalysts, chloride ions, and comprehensive agents (bases). The former (oil, gas) enters the carbon black in a very small amount, while the latter generates salt (in a very small amount), achieving complete balance of auxiliary materials.

② Energy balance: In the process of this technology, the external supply of energy is limited to electrical energy, which is used for power consumption such as material transportation, material pre-treatment, and material shredding during the catalytic cracking process; All the heat energy required for pyrolysis is provided by the non condensable gas (mainly composed of methane) in the pyrolysis products, fully achieving energy balance and energy conservation.

③ Water balance: In this process, there is no reactive water and no water consumption is required. The condensate water is recycled, and a small amount of evaporation is added in an appropriate amount, which can be ignored and there is no water balance problem.

10、 Economic benefits  

1. Processing capacity  

The designed hourly processing capacity of the production line is 2500kg~3000kg, which can be continuously operated and shut down at any time. The equipment is designed to be modular and can be combined with multiple production lines to meet the needs of processing capacity.  

2. Economic analysis  

Total cost:  

A Energy consumption (electricity) of 40 degrees per ton (this "ton" refers to waste plastic, the same below), the production process basically does not consume water, and pyrolysis does not require external energy; Electricity is calculated as 40 yuan/ton at a rate of 1.0 yuan/kWh;  

Labor cost (including social security benefits): 10000 yuan/person/month × 16 people × December/year=1.92 million yuan/year, equivalent to 128 yuan/ton based on annual production standards;  

Depreciation of fixed assets: Equipment is depreciated over a 10-year period and construction facilities are depreciated on an average of 20 years, with a residual value rate of 5%. Depreciation is estimated to be amortized at 130 yuan/ton based on reaching production capacity;  

The cost of raw materials such as catalysts is 60 yuan/ton;  

Other (such as purchasing raw materials): 200 yuan/ton.  

Total cost: 558 yuan/ton x 15000 tons/year=8.37 million yuan/year;  


Total income:  

The production rate of three-phase energy products after treatment varies depending on the variety of raw materials. Calculated based on the products produced after the treatment of waste plastic in household waste, 0.35 tons of fuel oil, 0.2 tons of high calorific value carbon, and 200 square meters of surplus high-purity gas are generated per ton of waste plastic treatment (usually). The total revenue is the sum of these three sales revenue.  

A fuel (gross oil) output rate of 30% is calculated as 4500 electricity/year, with a current market price of 4000-5000 yuan/ton, and an income of approximately 18 million yuan/year based on 4000 yuan/ton;  

Carbon slag is priced at 15%, approximately 2250 tons per year, with a market price of approximately 600-2000 yuan per ton. Revenue calculated at 600 yuan/ton is 1.35 million yuan/year;  

After treating each ton of waste plastic, there is about 200m3 of surplus high-purity gas, which can generate electricity of 500-600 degrees Celsius for personal use or network connection. Due to the small size of the current model, this item will not be considered temporarily.  

The total revenue of products reaching production capacity is 19.35 million yuan/year;  

Annual profit: 1935-837=10.98 million yuan;  

Annual corporate income tax (tax rate at 25%): 2.745 million yuan.  

Annual profit after tax: 8.235 million yuan.  

Based on this calculation, all investment can be recovered within 3 years (including a construction period of 6 months).  

11、 The scope of application of technology  

1. The promotion and application of mulching film (DE) in rural areas has played a role in addressing the adverse effects of drought and cold weather on crop growth, saving water and fertilizer, and increasing yield. However, unreasonable management of agricultural film has led to serious "white pollution". At present, there is no technical problem with mechanized recycling of agricultural film residues from farmland, but the ultimate disposal of recycled agricultural film is not satisfactory. If it is used as recycled plastic (degraded), the cleaning cost of agricultural film is too high, and a large amount of water resources are used, which can easily cause water pollution; Agricultural film granulation contains too many impurities and cannot be widely used. The ultimate treatment of this process, without sorting or cleaning, can enter the production process.  

2. After the domestic Waste sorting is classified, the treatment of organic synthetic solid wastes such as waste plastics is less investment, shorter construction period and higher economic benefits than incineration power generation. It is particularly suitable for the treatment of "stored garbage". Due to the long stacking time of stale garbage, other organics will ferment, rot and decompose, and the content of waste plastics will be relatively increased (about 20% -30%). The sorting and disposal process is relatively simple: Construction waste, inorganic and Humus will be removed, and the remaining combustible materials such as organic compounds such as waste plastics will be directly fed into the furnace without sorting. The headache causing landfills, garbage mountains, and garbage valleys will become "urban coal mines" and "urban oil fields".  

3. Professional factories produce a large amount of low-value waste plastics, such as recycled paper factories, waste plastics (nylon, chemical fiber) factories, and small recycled paper factories that produce 100000 tons of recycled paper annually, producing over 5000 tons of waste plastics. Some recycled paper factories in Sichuan produce 130000 tons of waste plastic annually, piled up like a mountain.  

4. At the same time as disposing of waste plastics, waste rubber, waste leather, etc. can also be disposed of together. There are a large amount of waste that affects environmental safety, such as shoe factories and car dismantling factories, that can be utilized.  

5. The floating waste plastic garbage, rotten fishing nets, etc. in the ocean (including rivers, lakes) can be directly treated and utilized after being salvaged.  

6. This process equipment can not only process waste plastic, but also be used to process all combustible materials in the same furnace as long as different pyrolysis temperatures (up to 1100 ℃) and material speeds (limit of 5 times) are controlled. For example, household waste, kitchen waste, medical organic solid waste, various oily sludge, tar residue, paint residue, and so on.  

7. It can be used for the extraction of bio oils with an extraction rate of over 95%. After extraction, the residue can also be converted into high calorific value carbon.  

8. This production line can also be used for drying various materials, making it an ideal drying equipment.  

12、 Conclusion  

The patented technology of this invention does not require classification and cleaning of waste plastics, and can be conveniently disposed of and utilized as a resource. It can be decomposed into fuel oil, carbon black, and gas, all of which can be turned into treasure. The treatment process has no secondary pollution, solving the global problem of large-scale, industrialized, low-cost, and pollution-free treatment of waste plastics, and is a major technological innovation.  


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