3 TPH Biomass-Fired Steam Boiler for Food Production Factory in Malawi(2023) – Henan AIX Boiler Co., Ltd. Electric/Oil/Gas/Biomass/Coal Boiler Factory

PROJECT DESCRIPTION

In 2023, AIX Boiler supplied a 3 TPH DZH manual chain grate biomass-fired steam boiler to a food processing factory in Lilongwe, Malawi. The client specializes in maize flour milling, peanut butter production, vegetable oil extraction, and snack manufacturing, requiring reliable, low-cost steam for cooking, sterilization, drying, and pasteurization.

Key Project Details

Boiler Model: DZH3-1.25-AII (manual feeding chain grate) – 3 tons/hour steam capacity
Rated Pressure: 1.25 MPa (saturated steam)
Designed Fuel: Local Malawi biomass – wood chips, sawdust, maize cobs, peanut shells, and agricultural residues
Efficiency: ≥82% (with basic economizer)
Applications:
- Steam for maize cooking and conditioning
- Peanut roasting and oil pressing sterilization
- Vegetable drying and snack extrusion
- Hot water/steam for CIP cleaning and pasteurization

Why the Client Chose AIX Boiler

Excellent fuel flexibility for abundant, low-cost local biomass with simple manual feeding
Low initial cost and simple structure, ideal for small-scale food processors in Malawi
Easy operation and maintenance with minimal skilled labor required
Basic emission control (cyclone dust collector) to meet local environmental standards
Full remote support, video training, and spare parts availability

Project Timeline

Order confirmation: Q1 2023
Manufacturing & testing: 70 days
Sea freight to Beira port (Mozambique) + inland transport to Lilongwe: Q2 2023
Installation & commissioning: Q3 2023
Full commercial operation: August 2023

Client Outcome The boiler has dramatically reduced energy costs by using free/cheap biomass residues instead of diesel, provided stable steam for daily production, lowered carbon emissions, and supported a 15–20% increase in output. It serves as a successful example of sustainable biomass utilization in Malawi’s food industry.

For similar biomass steam projects in food processing, contact AIX Boiler: Email: [email protected] WhatsApp: +86 15188365066 / +86 13037600603 Website: https://www.aixboiler.com

Why choose AIX Boiler?

The manual feeding design eliminates complex automatic feeding mechanisms, making the DZH boiler 20–40% cheaper than automatic models like DZL. This is ideal for small-to-medium food processing plants in cost-sensitive markets, allowing quick ROI through low capital investment. (
Hand-fired chain grate easily handles diverse, low-cost fuels such as wood chips, maize cobs, peanut shells, rice husks, bagasse, or local coal — common in food-producing regions. Operators can adjust combustion manually for optimal burning of variable fuel quality without mechanical issues.
Indirect combustion with proper water treatment produces clean saturated steam free from combustion byproducts or chemical additives. The simple design minimizes contamination risks, meeting basic food hygiene requirements for cooking, sterilization, drying, and pasteurization in maize milling, oil pressing, snack production, etc.
Manual operation requires only basic training for adding fuel, stoking, and ash removal — perfect for regions with available workforce. The robust grate and minimal moving parts reduce breakdown risks, with low spare parts cost and straightforward daily maintenance.