During the operation of boilers and industrial production lines, the generation of smoke, dust, soot, and harmful gases (SOx, NOx, CO) is inevitable. Currently, strict compliance with National Technical Regulations on the environment (especially QCVN 19:2009/BTNMT) is not only a legal obligation to avoid heavy fines or the risk of operation suspension, but also a testament to the social responsibility and sustainable development of the enterprise.
As a leading expert in boiler manufacturing, HONG NHUT THERMAL & REFRIGERATION ENGINEERING CO., LTD deeply understands the physical and chemical properties of each type of exhaust gas generated from various fuel sources (coal, firewood, rice husk, sawdust, biomass, oil, gas). Based on this, we provide comprehensive Design, Fabrication, and Installation services for Industrial Exhaust Gas Treatment Systems, guaranteeing 100% compliant output according to the regulations of the Ministry of Natural Resources and Environment.
1. Exhaust Gas Treatment Technologies We Provide
Depending on the boiler capacity, type of fuel burned, and local emission standards, Hong Nhut's engineers will design and combine the following treatment modules to deliver optimal efficiency:
1.1. Multi-Cyclone Dust Collector System This is the first and crucial primary treatment step. The exhaust gas carrying large dust particles is fed into Cyclone tubes. Under the effect of centrifugal force, heavy dust particles collide with the tube walls, lose kinetic energy, and fall into the dust collection hopper below, while the cleaner gas stream flows upwards.
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Advantages: Low investment cost, mechanical structure capable of withstanding extremely high temperatures, and no complex maintenance required. Effectively treats 70-80% of large-sized ash and dust.
1.2. Wet Scrubber & Toxic Gas Absorption Tower The exhaust gas stream, after passing through the Cyclone, enters the wet scrubber. Here, the misting nozzle system sprays the absorption solution (usually water combined with NaOH or milk of lime Ca(OH)2) counter-currently or cross-currently to the gas flow.
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Operating Principle: The water "captures" the remaining fine dust particles and cools the gas stream. Simultaneously, the alkaline solution chemically reacts to thoroughly neutralize toxic gases such as SO2, CO, and NOx.
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Advantages: Highly efficient in treating toxic gases and fine dust, cools the exhaust gas before releasing it into the environment, and offers excellent fire and explosion prevention.
1.3. Baghouse Filter System Applied to plants with extremely strict environmental standards or those located in densely populated residential areas. The exhaust gas stream passes through hundreds of heat-resistant fabric filter bags (such as PTFE, PPS).
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Advantages: Capable of retaining ultra-fine dust particles (micrometer size), with smoke and dust filtration efficiency reaching up to 99%. The system features an automatic pulse-jet compressed air cleaning mechanism to maintain continuous performance.
2. Professional Service Implementation Process
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Step 1: Source Survey & Assessment: Engineers conduct on-site measurements of gas flow, temperature, and pressure, and take samples to analyze the concentration of pollutants.
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Step 2: Technological Design: Selecting and calculating the combination of treatment towers (Cyclone + Wet Scrubber, or Cyclone + Baghouse...) to ensure compliance with QCVN standards at the lowest operational cost (electricity, water, chemicals).
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Step 3: Manufacturing & Fabrication: Using highly corrosion-resistant materials (Inox 304/316, Fiberglass Reinforced Plastic - FRP, heat-resistant Epoxy coating) to ensure the system's lifespan in harsh chemical environments.
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Step 4: Installation & Construction: Installing the Induced Draft (ID) Fan system, chimney, gas ducts, treatment towers, and automated electrical control cabinets.
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Step 5: Test Run & Environmental Acceptance: Conducting a system test run and inviting an independent environmental monitoring unit to measure, sample exhaust gases, and issue standard compliance certification for the plant.
3. Why Choose HONG NHUT's Emission Treatment Services?
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Understanding Boilers – Treating Exhaust Gas at the Root: Unlike purely environmental companies, we are boiler manufacturers. We have the capability to calibrate boiler combustion parameters to minimize smoke generation right from the source, helping to reduce the load and scale of the downstream exhaust treatment system.
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System Synchronization: Providing an "All-in-one" solution from the boiler combustion chamber and air supply system to the ID fans and treatment towers, ensuring perfect aerodynamic flow without causing boiler chokes or pressure drops.
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100% Legal Commitment: Guaranteeing that the output emission quality always passes the strictest inspections by regulatory authorities.
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Long-lasting Durability: Strict selection of heat-resistant and chemically corrosion-resistant materials gives Hong Nhut's systems an outstanding lifespan compared to mass-produced products.
Do not let environmental issues become a bottleneck hindering your plant's development. Contact HONG NHUT THERMAL & REFRIGERATION ENGINEERING CO., LTD today for consultation and the design of the most optimal exhaust gas treatment system.
CONTACT INFORMATION FOR CONSULTATION & QUOTATION:
Company: HONG NHUT THERMAL & REFRIGERATION ENGINEERING CO., LTD
Hotline/Zalo: 0961546854
Email: [email protected]
Website: https://hongnhut.com/
Address: 117A Binh Thoi Street, Phu Tho Ward, Ho Chi Minh City
Factory Address: 150C Ho Hoc Lam Street, An Lac Ward, Ho Chi Minh City
