Eritrea, situated in the Horn of Africa, is currently experiencing structural modernization across its municipal, mining, and industrial sectors. Rapid urbanization in key logistical and manufacturing hubs such as Asmara, Massawa, and Keren has accelerated the accumulation of municipal solid waste (MSW) and end-of-life vehicle (ELV) waste, particularly scrap tires. With limited options for sustainable waste disposal, large volumes of high-calorie polymer wastes are either landfilled or openly incinerated, causing severe ecological challenges.
Simultaneously, industrial operations, agricultural logistics, and mining sites across the Bisha and Zara mining fields require a steady and cost-effective supply of heavy fuel oil (HFO) for power generation, transport, and kiln processes. The implementation of the Semi-Continuous Model Pyrolysis Plant (Drum Running Model) provides a highly viable local solution. By utilizing thermal cracking (pyrolysis) under controlled oxygen-free conditions, our drum-running model converts scrap rubber, waste tires, and plastics into valuable pyrolysis oil, carbon black, and syngas, directly addressing both environmental waste challenges and fuel supply gaps.
Our technologies align with the global transition toward a circular economy. They convert municipal liabilities into localized energy assets, eliminating the energy-intensive shredding processes required by traditional batch plants and reducing the overall capital expenditure for Eritrean project developers.
Unlike continuous screw-type plants that require tires to be finely ground into 1-3mm rubber powder, our drum running model accommodates large 5-10cm blocks. This significantly reduces the initial investment and electricity consumption required for pre-treatment shredders.
The rotating drum design ensures uniform heating of feedstock materials, avoiding local overheating or carbon deposition on the reactor walls. This delivers a stable oil yield and extends the lifespan of the pyrolysis reactor to over 8-10 years.
Engineered under national A-class boiler and pressure vessel codes. The system features multi-stage cooling condensers, hydro-seals to prevent back-flash, and pressure relief valves to ensure safe operation in demanding industrial environments.
Focusing on waste-to-energy and waste tire pyrolysis technology, Huayuan Tech was founded in 1968. The company covers an area of 209,335 square meters, with a plant area of 98,680 square meters, employing more than 500 workers, with engineering and technical personnel accounting for 34% of the total workforce. We maintain a complete range of A-class boiler and pressure vessel manufacturing and testing equipment.
We hold pressure pipe installation permits and are certified under ISO9001, ISO14001, and OHSAS18001 management systems, alongside United States ASME certification.
With the continuous development of our enterprise, we have expanded our services to cover industrial boilers, pressure vessels, waste tire and plastic scrap pyrolysis machines, thermal equipment system integration, contract energy management, and investment and financing, supplemented by professional energy-efficient application services. We hold national A-class boiler manufacturing licenses, A2-class pressure vessel manufacturing licenses, and D1D2 pressure vessel design certificates.
We unswervingly pursue technological innovation, building a strong corporate core competitiveness as a long-term development strategy. Adhering to the business principles of "innovation, quality, honesty," with environmental protection and energy conservation as key prerequisites and technology as a primary tool, we leverage our professional skills and unique R&D philosophy to deliver innovative products and services that meet evolving market demands.
Initially, Huayuan Technology developed boiler technology in several factory workshops.
Restructured as Linyi County Boiler Manufacturing and Repair Factory, under the jurisdiction of the Linyi County Industrial Bureau.
Renamed Linyi Boiler Factory, merged with Linyi Auto Parts Factory, and relocated to 373 Tongda Road.
Restructured into Linyi Boiler Co., Ltd. to modernize corporate governance.
The successful restructuring provided support for the company's growth, marking its transition into a modern enterprise.
Obtained the national A-level boiler manufacturing license and ISO certifications, and commenced manufacturing batch-model waste tire pyrolysis plants.
Moved to a new factory covering 220 acres in Zaoyuan Town Industrial Park. Commenced development of continuous-model pyrolysis plants.
Successfully developed our screw-running model continuous pyrolysis plant. Obtained high-tech enterprise recognition and American ASME certification, expanding the Huayuan brand globally.
Adhering to our corporate vision of "doing energy conservation and emission reduction, making the sky bluer, the earth greener, and the water cleaner."
Global procurement directors face major challenges when sourcing waste-to-energy machinery: unpredictable lead times, low-grade steel, and fluctuating welding standards. Huayuan Tech addresses these concerns by incorporating China Industry 4.0 practices into our manufacturing workflow. Every pyrolysis reactor and pressure vessel is constructed using premium boiler plate steel (Q245R/Q345R and ASME-compliant grades) sourced directly from major steel mills, ensuring durability under high thermal stress.
Our smart manufacturing facility incorporates robotic submerged arc welding and automated ultrasonic non-destructive testing (NDT), eliminating human error and ensuring every weld can withstand the thermal stresses of repeated cooling and heating cycles. With an integrated manufacturing chain, we manage design, component sourcing, vessel rolling, testing, and assembly on-site. This vertical integration keeps production times consistent, reduces transport delays, and helps Eritrean operators manage costs effectively without compromising on safety and quality.
We develop advanced boiler technologies, pressure vessels, and waste tire/plastic pyrolysis systems to assist industries in improving resource efficiency and reducing waste footprints.
The drum-running model accepts waste rubber tires, scrap plastics, and industrial solid wastes. For efficient processing, tires should be cut into 5-10cm blocks, which is less resource-intensive than the 1-3mm powder required by fully continuous screw systems.
The system features a multi-stage flue gas cleaning system that includes water washing, desulfurization, and activated carbon adsorption towers. This system treats flue gases to meet both local Eritrean environmental standards and international safety regulations before release.
Non-condensable syngas is routed through a safety water seal and recycled back to the combustion chamber to heat the reactor. This process reduces external fuel requirements during operation.
Constructed using high-strength Q245R/Q345R boiler-grade steel and welded to ASME standards, the reactor has an operational lifespan of 8 to 10 years, depending on maintenance practices.
Yes, we provide technical support that includes site layout planning, foundation drawings, remote installation guidance, and on-site training for local operators.
Get in touch with Huayuan Tech's engineering consultants today to receive custom drawings, accurate product specifications, and competitive pricing for projects in Eritrea.
Send Inquiry Now
Huayuan