Tire pyrolysis resource utilization:

Waste tires are difficult to naturally degrade and accumulate in large quantities, forming "black pollution". Traditional landfilling and simple incineration can easily generate a large amount of pollutants, resulting in serious waste of resources. The tire pyrolysis resource utilization technology relies on the principle of inert atmosphere anaerobic pyrolysis, and a complete closed continuous system is used for heat treatment of crushed tire rubber particles:

1) Cracking and condensing of organic rubber components to recover cracked fuel oil, which can be used as industrial fuel or further refined;

2) Solid products are separated to produce regenerated carbon black and metal steel wire. Carbon black can be reused in the rubber and coating industries, while steel wire can be recycled for metallurgical purposes;

3) The combustible gas generated by cracking is purified and used as a system heat source, significantly reducing external energy consumption;

4) Multi stage purification treatment of flue gas significantly inhibits the generation of dioxins compared to incineration, meeting the requirements of ultra-low emissions for environmental protection.

A centralized tire recycling and disposal base can be established to connect the entire chain of waste tire recycling, pyrolysis, and deep processing of products, transforming solid waste disposal projects into resource generating circular projects, and assisting in the resource utilization of solid waste and the construction of waste free cities.

Preparation of negative electrode material:

The power battery has entered a large-scale retirement cycle, and the traditional recycling method of waste graphite negative electrodes has pain points such as high graphite loss, difficult removal of impurities, and high environmental control pressure. The preparation technology of pyrolysis negative electrode materials relies on the gradient pyrolysis principle of nitrogen inert atmosphere, and a complete set of closed continuous equipment is used for heat treatment of waste negative electrode sheets

1) Directed decomposition of PVDF binder, electrolyte residue, and SEI passivation film under oxygen isolation conditions, achieving efficient dissociation of graphite powder and copper foil;

2) Precise temperature control repairs micro defects in graphite, and obtains battery grade regenerated graphite negative electrode raw materials through post-treatment;

3) Separate to obtain high-purity copper foil, which can be directly recycled for metallurgical use;

4) Organic waste gas generated from pyrolysis is collected and purified uniformly, with negative pressure throughout the process and no odor leakage.

Compared with direct incineration of graphite, the process has a higher recovery rate and better electrochemical performance of the material. It is suitable for lithium battery recycling enterprises and renewable resource industrial park projects, creating a green closed loop from retired batteries to regenerated negative electrode materials, reducing the external dependence of lithium battery raw materials, and in line with the policy orientation of dual carbon and solid waste resource utilization.

Plastic pyrolysis resource utilization:

A large amount of mixed waste plastics are difficult to naturally degrade, and traditional landfilling and incineration can easily produce toxic smoke. Recycling and sorting are difficult, and the value of resources is seriously wasted. The plastic pyrolysis resource utilization technology relies on the principle of inert atmosphere anaerobic pyrolysis, and the closed continuous equipment is used for heat treatment of crushed and purified waste plastics:

1) Plastic long-chain polymers undergo thermal cracking and condense to recover cracked fuel oil, which can be used as industrial fuel or further refined and processed;

2) The combustible exhaust gas generated by cracking is purified and supplied to equipment for combustion and heating, reducing external energy consumption;

3) Collect and dispose of a small amount of solid residue uniformly; The flue gas undergoes multi-stage purification, resulting in lower levels of pollutant emissions compared to direct incineration.

It can be applied to collaborative disposal projects of household waste derived plastics, industrial waste plastics, and waste rubber and plastic, converting low value waste plastics into liquid energy and transforming simple solid waste disposal projects into profitable circular economy projects, which is in line with the dual carbon policy and the development direction of solid waste resource utilization.

Thermal decomposition and resource utilization of waste lithium batteries:

New energy power batteries are entering the retirement cycle in batches, and waste lithium batteries are classified as hazardous waste, with corrosive, flammable, and explosive electrolyte risks; Traditional wet and pyrometallurgical processes have pain points such as high reagent consumption, high energy consumption, and material damage. The pyrolysis resource utilization technology for waste lithium batteries adopts gradient heat treatment in a nitrogen inert atmosphere:

1) Decompose the diaphragm, PVDF binder, and electrolyte components in a sealed oxygen free environment to eliminate battery safety hazards;

2) Promote the detachment and dissociation of positive and negative active powders from copper and aluminum foils, facilitating subsequent sorting and purification;

3) The organic waste gas generated by pyrolysis is collected and treated uniformly, equipped with a fluoride adsorption purification system, which is environmentally friendly and controllable;

4) The black powder and copper aluminum metal obtained after pyrolysis can be further processed to prepare recycled lithium battery raw materials.

The process is safe and controllable, suitable for lithium battery recycling enterprises, renewable resource industrial parks, and hazardous waste disposal centers, to build a circular industry chain of "retired batteries - thermal decomposition and impurity removal - renewable lithium battery raw materials", reduce the dependence on external procurement of lithium, nickel, cobalt, and graphite, and conform to the policy orientation of dual carbon and renewable resources.

Resource utilization of fan blade pyrolysis:

A large number of early wind turbines in China are gradually entering the retirement cycle. The wind turbine blades are made of thermosetting fiberglass composite materials, which cannot be melted and rebuilt after resin molding. Traditional landfill occupies a large amount of land and incineration easily produces organic pollutants. Conventional mechanical crushing and recycling products have low added value, and retired blades have become a prominent solid waste pain point in the wind power industry. The resource utilization technology of fan blade pyrolysis relies on the principle of anaerobic pyrolysis, and the crushed blade material is sent to a closed continuous pyrolysis system:

1) Heating and decomposing the epoxy resin matrix under an inert atmosphere, converting organic components into pyrolysis oil and combustible non condensable gas, and supplying the gas supply system with its own heat source;

2) After the resin is fully decomposed, inorganic fibers are separated from the resin matrix to obtain clean regenerated glass fibers/carbon fibers, which can be used as raw materials for new composite materials;

3) The entire system is sealed under negative pressure, with centralized collection and purification of volatile exhaust gas, ensuring stable and compliant environmental emissions;

4) Adapt to the centralized disposal of a large number of retired blades and establish a "service retirement regeneration raw material" cycle for ventilation and electrical equipment.

Suitable for wind power operation and maintenance enterprises, renewable resource recycling industrial parks, and large-scale hazardous waste comprehensive disposal bases, providing a large-scale resource utilization path for retired wind turbine blades, in line with the policy direction of solid waste recycling in the new energy industry chain and the construction of waste free parks.