Biomass Pellet Plant for Mixed Agricultural Residues in Myanmar

RICHI MACHINERY

Why Myanmar? Why Mixed Agricultural Residues?

Myanmar remains a major rice- and maize-producing country. FAO’s 2025 outlook forecast aggregate paddy production at about 28.2 million tonnes and maize production at about 2.1 million tonnes. That agricultural base creates large volumes of husk, straw, stalks and other residues, although the share that can actually be collected economically depends on distance, competing uses and seasonal moisture.

A mixed-feedstock biomass pellet plant is therefore more resilient than a single-residue project in Bago. Rice husk may be abundant after milling, corn and bean residues are seasonal, while sawdust and clean wood offcuts can provide a steadier year-round fraction.

Customer Type	Why Pellets May Fit	Commercial Check
Rice / food processors	More uniform feeding than loose mixed residues	Boiler grate and ash-handling compatibility
Textile / garment steam users	Alternative solid fuel for process heat	Delivered energy cost and emissions control
Rubber / agro-processing plants	Standardized moisture and bulk density	Storage and fuel-feeding arrangement
Biomass traders	Densified transportable product	Specification, volume and payment terms

The strongest market is industrial heat, not residential heating. Myanmar’s power shortages can raise interest in local biomass energy, but a pellet producer should not assume that grid unreliability automatically creates pellet demand. Customers still compare pellets with rice husk, wood chips, charcoal, coal, LPG or other locally available fuels.

The project is therefore sized to 8,000 T/A rather than to an unverified national market gap. A few contracted industrial users can absorb this volume if fuel trials, ash handling and delivered cost are acceptable.

RICHI MACHINERY

Raw Material Sourcing 

The feedstock plan uses residues within a practical trucking radius of Bago and Yangon-facing industrial areas. Supplier contracts define material origin, moisture and prohibited contaminants so low-cost waste does not become high-cost rejects at the factory.

Raw Material	Approx. Annual Intake	Typical Receiving Moisture	Role
Clean sawdust / wood offcuts	3,200 T/A	About 15–28%	Main lower-ash, higher-energy fraction
Rice husk	2,500 T/A	About 10–16%	Abundant but ash/silica sensitive
Corn stalks / bean straw	1,800 T/A	About 15–25%	Seasonal agricultural fiber
Clean bamboo residues	1,200 T/A	About 18–30%	Supplementary fibrous feedstock
Other clean dry crop / wood residues	1,300 T/A	About 15–25%	Seasonal balancing material
Gross input	Approx. 10,000 T/A	Weighted around 24–26%	Supports about 8,000 T/A finished pellets

At roughly 25% weighted incoming moisture, 10,000 tons of feedstock contains about 7,500 tons of dry matter. Finished pellets at 8,000 T/A and around 10% moisture contain about 7,200 tons of dry matter. The remaining dry-matter difference covers mineral contamination, screening rejects and unrecoverable handling loss, while roughly 1,700 tons of water is removed through drying and cooling.

• Painted, laminated, preservative-treated and glued construction wood are excluded.
• Village-collected waste wood is accepted only when its origin and surface condition can be verified.
• Rice husk is controlled by blend because silica and ash affect fuel quality and die wear.
• Bamboo and long stalks are cut before fine grinding; sawdust and rice husk bypass unnecessary coarse crushing.
• Very wet green wood is limited because transporting and evaporating excess water is uneconomic.

The plant does not depend on 40–50% moisture green waste as a core feedstock. Wetter material can be handled in limited batches, but procurement is designed around dry-to-moderately-wet residues so the dryer remains a manageable part of the project rather than the dominant cost.

RICHI MACHINERY

The Site and Building 

The pellet operation uses approximately 4,800 m² within a larger former industrial property in Bago Region. About 1,600 m² is covered by the repaired production and storage buildings; the remaining area provides truck access, dryer/furnace separation, fire access and short raw-material staging.

Zone	Approx. Area	Use
Covered raw-material buffer	450 m²	Sawdust, husk and prepared crop residues
Preparation / drying section	400 m²	Crusher, hammer mill and dryer interface
Pelletizing / cooling / screening	350 m²	MZLH768, cooler and screener
Packing / finished buffer	250 m²	Bagged / FIBC product awaiting dispatch
Maintenance / electrical / QC / office	150 m²	Spares, controls and basic testing
Outdoor yard / utilities / truck circulation	Balance of site	Short bulky-residue staging and safe vehicle movement

The 12 m clear height is useful for elevators, day bins and vertical equipment arrangement, but the project does not need a 50-ton cooling silo. Finished pellets move through a dedicated counterflow cooler and then into short dispatch storage.

Bulky straw, stalks and bamboo are not stockpiled for months in a 7,000 m² open yard. Seasonal material can remain at contracted collection points or supplier yards until required, reducing fire risk, rain exposure and tied-up working capital.

The biomass pellet mill and packing area are positioned close to finished-goods dispatch, while wet/raw preparation remains toward the receiving side. This preserves a one-direction material flow through the building.

RICHI MACHINERY

Equipment Configuration

The line is configured around the actual 3–4 T/H biomass model library. One MZLH768 replaces the 250 kW non-standard description, and drying heat is provided by biomass rather than a 120 kW electric resistance heater that could not evaporate the required water load.

Section	Main Equipment	Project Configuration
Receiving / protection	Hopper, coarse screen and magnetic separators	Removes metal, stones and oversize contamination
Coarse size reduction	75 kW-class wood / bamboo crusher	Used only for offcuts, branches and thick bamboo
Fine grinding	90 kW-class hammer mill + aspiration	Approx. 4–5 T/H prepared-material duty
Drying	Rotary dryer + biomass hot-air furnace	Approx. 1–2 T/H peak water evaporation; dry material bypasses
Pelletizing	1 × MZLH768 Biomass pellet press	315 kW; 3–4 T/H
Cooling	Counterflow cooler	Matched to 3–4 T/H output
Screening	Pellet screener + fines return	Controls loose fines before storage
Packing	Semi-automatic bagging + FIBC option	25–50 kg and larger industrial formats
Dust / exhaust	Cyclones + bag filters	Grinding, dryer and pellet-handling duties separated
Controls	Compact PLC / MCC	Interlocks, alarms and safe shutdown

The RICHI equipment package is fixed at USD 356,000. The completed USD 568,000 project total also covers building repair, electrical service, dryer/furnace foundations, fire and dust-control work, installation, commissioning and startup spares.

The MZLH768 gives the project the required hourly capacity with one pelletizing module. The client keeps a critical-spares package for die, rollers, bearings, belts and screens; maintenance planning is more economical than adding a second full pelletizing train that would be idle most of the year.

The biomass-fired drying route also fits the residue business better than resistance-electric heat. Low-grade clean bark, fines or off-spec biomass can provide process heat, while saleable lower-ash material remains in the pellet recipe.

RICHI MACHINERY

Process Flow

The process is designed so each residue follows only the preparation steps it needs. Rice husk and dry sawdust can enter late in the front end; wood offcuts and bamboo need coarse size reduction; wetter lots require thermal drying before stable pelletizing.

Step 1: Raw Material Receiving and Sorting

Loads are checked for supplier, moisture and contamination before unloading. Metal, stones, plastic and prohibited treated wood are removed or the load is rejected. Rice husk, crop residues and wood residues are held separately so operators can control the blend.

Step 2: Pre-Drying for Wet Material (Natural Method)

Covered natural pre-drying can reduce water load during Myanmar’s dry season, but it is not the sole drying system. Moderately wet wood or stalks may be aired under cover before mechanical processing; during the monsoon, production relies on procurement limits and the biomass-heated dryer.

Step 3: Crushing (For Oversized Material Only)

Large clean wood offcuts, branches and thick bamboo pass through the coarse crusher. Rice husk and sawdust bypass this machine. Coarse output is reduced enough for stable hammer-mill feeding without wasting energy on unnecessary over-crushing.

Step 4: Hammer Milling and Screening

Prepared material enters the hammer mill. Screen selection depends on the actual residue mix, with the normal objective being a few-millimeter particle distribution that feeds the ring die evenly. Excessive fines are avoided because they increase dust and can change die load.

Step 5: Storage of Milled Material (Buffer)

Ground material enters a small day bin that separates intermittent grinding from continuous drying/pelletizing. Different recipe components are metered into the common flow according to the production batch rather than relying on one large mixed inventory.

Step 6: Drying

Material above the pelletizing moisture window enters the rotary dryer, which is heated by a biomass hot-air furnace. Peak design is roughly 1–2 T/H of water evaporation, sufficient for the annual mass balance while allowing already-dry husk and sawdust to bypass the dryer.

Outlet moisture is typically adjusted to around 10–14% before pelletizing, depending on the blend. Dryer control is based on measured moisture, exhaust condition and material behavior rather than one fixed outlet temperature.

Step 7: Pelletizing

Prepared material enters the MZLH768 ring-die pellet mill. The normal product is 8 mm industrial fuel pellet. Die compression, roller gap, feed moisture and throughput are commissioned for the actual wood/rice-husk/stalk mixture; one universal compression ratio is not applied to every batch.

Rice husk can be pelletized, but higher silica and ash can increase wear and reduce fuel quality. Wood residue in the blend improves calorific value and usually improves the commercial specification, but it is not described as a mandatory binder.

Step 8: Cooling

Fresh pellets move directly into a counterflow cooler. Mechanical cooling brings product temperature close to ambient before screening and packing, avoiding overnight storage in a 50-ton natural-cooling silo and reducing condensation risk during humid weather.

Step 9: Packaging

Cooled pellets are screened and clean fines return to the same production stream. A semi-automatic bagging system fills 25–50 kg bags, while FIBC or bulk dispatch can be used for industrial customers.

Finished lots are released against moisture, ash and fuel-quality checks appropriate to the customer contract before they leave the factory.

RICHI MACHINERY

Utility Requirements and Consumption

The main electrical load is the 315 kW MZLH768, followed by hammer milling, crusher, dryer fans, cooler and dust extraction. Thermal energy for moisture removal comes from biomass residue rather than electric resistance heaters.

Utility	Practical Annual Planning Range	Engineering Basis
Electricity	Approx. 1.3–1.6 million kWh/year	Pelletizing, grinding, fans, cooling, conveyors and packing
Electrical service	Approx. 630–800 kVA	Supports MZLH768 and front-end auxiliaries
Dryer biomass fuel	Approx. 900–1,200 T/A residue equivalent	Depends on actual moisture and furnace efficiency
Fresh / domestic water	Approx. 180–250 m³/year	Small workforce and dry-process housekeeping
Process water	Minimal	Only controlled moisture adjustment where required
Loader / forklift fuel	Approx. 3,000–4,500 L/year	Receiving and dispatch

The plant normally runs one 8-hour production shift for about 300 days per year. Drying and coarse preparation hours vary with the selected feedstock, so annual energy is not calculated by assuming every motor operates at full load for the entire shift.

A workforce of about 10–12 people covers receiving, preparation, dryer/furnace operation, pelletizing, packing, QC, forklift work, maintenance and supervision.

Grid reliability is treated as a project risk. Backup generation is sized for safe shutdown, controls, lighting and selected auxiliaries rather than assumed to run the full 3–4 T/H line economically during long outages. A full-line emergency generator would require a much larger rating than 50 kVA.

RICHI MACHINERY

Environmental Compliance 

Environmental compliance is based on Myanmar’s national framework rather than an assumed separate Bago emission code. The Environmental Conservation Law, Environmental Conservation Rules, the Environmental Impact Assessment Procedure and the National Environmental Quality (Emission) Guidelines form the main basis for project screening, assessment and operating controls.

The biomass furnace adds a combustion source, but that does not automatically make the project less compliant than an electric dryer. The correct approach is to size the furnace, cyclone/bag-filter system, stack and monitoring requirements for the actual heat input and permit conditions.

Aspect	Project Control	Operating Practice
Grinding / handling dust	Enclosed transfers, aspiration and bag filters	Housekeeping and filter-pressure checks
Dryer / furnace exhaust	Cyclone + particulate-control equipment	Combustion tuning and periodic monitoring as required
Combustible dust / fire	Metal removal, grounding, fire separation and extinguishers	No dust accumulation on beams, motors or cable trays
Noise	Equipment maintenance and local enclosure	Workplace / boundary checks where required
Solid rejects	Separated metal, stones and contaminated wood	Recycle only clean biomass fractions
Used oil / maintenance waste	Labeled contained storage	Transfer through approved waste route
Wastewater	Dry production process	Domestic wastewater handled separately

The National Environmental Quality (Emission) Guidelines include sector-specific and general pollution-control guidance, but numeric limits depend on the source type, scale and applicable assessment conditions. The plant therefore does not publish an invented universal 120 mg/Nm³ stack limit or one property-line noise number as if it automatically applies to this facility.

Material-source records are also part of environmental control. Treated wood, laminated boards and demolition material are excluded before they can create an emissions or ash-quality problem downstream.

RICHI MACHINERY

How RICHI Machinery Customized This Line for the Client’s Needs

The design responds to four real constraints: variable residue form, monsoon moisture, limited technical staff and unreliable power. RICHI keeps the system straightforward while retaining the equipment required for stable fuel quality.

1. Large wood and bamboo use a coarse crusher, while rice husk and sawdust bypass that stage.
2. A biomass-heated dryer handles the moisture load that natural pre-drying cannot reliably remove.
3. One MZLH768 provides 3–4 T/H installed pelletizing capacity and simplifies spare-parts management.
4. A counterflow cooler replaces the oversized natural-cooling silo and releases pellets sooner for packing.
5. Compact PLC/MCC controls provide interlocks and alarms while retaining manual operating modes.
6. Critical-spares planning reduces the downtime risk of operating one main pellet mill.

The dryer and furnace are physically separated from finished-pellet storage and linked to dedicated dust/exhaust control. This is more important to fire and permitting performance than replacing all thermal energy with electricity.

Operator training covers receiving inspection, moisture testing, hammer-mill screens, dryer control, MZLH die/roller adjustment, cooler airflow, bag-filter checks, lubrication and safe startup/shutdown.

The customer can add a second pelletizing module later if feedstock contracts and sales justify expansion. The first stage does not prepay for unused redundancy.

RICHI MACHINERY

Product Quality and Specifications

The product is sold as an industrial mixed-biomass pellet rather than being presented as certified premium wood pellet fuel. Because rice husk, stalks and bamboo can materially change ash and alkali behavior, each commercial grade is linked to its actual blend and laboratory results.

Property	Practical Project Target	Commercial Meaning
Diameter	8 mm main	Industrial feeding compatibility
Length	Typically 10–30 mm	Conveying and dosing
Moisture	About 8–12%	Storage and useful energy
Bulk density	Typically about 550–650 kg/m³	Transport and storage planning
Ash	Blend-dependent	Higher with rice husk / mineral contamination
Net calorific value	Typically about 14–18 MJ/kg	Depends on wood-to-agricultural-residue ratio
Mechanical durability / fines	Contract or batch target	Transport and feeder reliability
Chlorine / alkalis	Tested for sensitive boilers	Corrosion, deposition and slagging risk

The project does not use DB43/T 863-2014 as a Myanmar national standard. Buyers instead receive a declared contract specification and test results. International biomass-fuel standards can be used as technical references where appropriate, but certification is a separate process.

Wood-rich batches can normally achieve lower ash and higher calorific value than rice-husk-rich batches. The two grades can therefore be priced or assigned to different boilers instead of forcing them into one identical specification.

Durability, ash, moisture and calorific value are released from actual batch testing rather than from fixed commissioning numbers that are assumed to remain unchanged across all raw-material seasons.

RICHI MACHINERY

Market Opportunity for Biomass Pellets in Myanmar

Myanmar has a large theoretical residue resource but a much smaller bankable pellet market. FAO forecasts for 2025 put paddy output at about 28.2 million tonnes and maize at about 2.1 million tonnes, confirming feedstock availability at national scale. For this plant, however, supplier distance and delivered industrial-fuel economics matter more than national tonnage.

Industrial heat users around Bago and Yangon are the primary commercial focus. Rice mills may already burn husk directly, so they will only buy pellets where better feeding, storage, combustion control or another operating advantage justifies the added densification cost. Textile, food-processing and rubber plants may have a stronger reason to test a standardized fuel if their boilers are compatible.

Commercial Risk	Project Response
Grid outages disrupt production	Maintain safe-shutdown backup and production scheduling
Kyat volatility raises spare-parts cost	Hold critical imported spares and reduce unnecessary machine count
Residue prices can rise	Use multiple supplier categories and seasonal recipes
Rice husk has high ash	Control blend and match boiler customers
Long-distance trucking is expensive	Prioritize Bago / Yangon-region buyers
Export adds logistics and specification cost	Keep domestic industrial sales as the base case

The project does not rely on an unsupported 65,000 T/A addressable pellet market, a claim that domestic production is only 15,000–20,000 T/A, or a guaranteed 100% first-year return. Those figures can change rapidly and are not necessary to justify an 8,000 T/A regional plant.

Imported project equipment can move through Yangon Port or the Thilawa harbour area and then by road to Bago. Myanma Port Authority identifies Yangon as the country’s premier port handling more than 90% of normal imports and exports, making it the practical gateway for this biomass pellet project.

RICHI MACHINERY

Thinking About a Similar Project?

The strongest lesson from this biomass pellet manufacturing plant is that feedstock flexibility only works when the front end is designed to separate material routes. “Mixed residues” should not mean every material is dumped into one crusher and processed identically.

Drying energy should be calculated from tonnes of water removed. A small electric heater may look simple on an equipment list, but it cannot economically remove the water associated with thousands of tonnes of wet residues. Biomass heat is usually more appropriate when clean low-grade residue is already available on site.

Cooling deserves the same discipline. A 50-ton natural-cooling silo holds far more product than a 3–4 T/H single-shift line needs and keeps hot pellets in storage too long. A compact counterflow cooler gives faster, more predictable release to screening and packing.

Site area should also follow inventory policy. Supplier-side storage and scheduled deliveries can reduce the need for a huge open biomass yard, especially in a monsoon climate where uncovered residues lose quality quickly.

Finally, backup power must match its purpose. A small generator is suitable for controls and safe shutdown; running a 315 kW pellet mill plus hammer mill, fans and conveyors during long blackouts requires a much larger and more expensive generating system.

RICHI MACHINERY

Considering a Biomass Pellet Plant for Mixed Agricultural Residues?

A mixed-residue plant should be designed from monthly feedstock data rather than annual totals alone. The important inputs are dry tonnes by month, receiving moisture, contamination, particle form, collection distance and the boiler specification of the intended customer.

• Separate wood, rice husk, stalks and bamboo in the procurement and preparation plan.
• Size the dryer from peak water evaporation, not wet-ton throughput alone.
• Choose the pellet mill from dry prepared-material capacity and the actual residue mix.
• Use mechanical cooling before packaging at commercial output.
• Confirm grid capacity and decide whether backup power is for safe shutdown or full production.
• Keep export as an option only after domestic specification and logistics are proven.

RICHI scope covers process engineering, equipment manufacture, factory inspection, export packing, controls, installation guidance, commissioning and operator training. The supplied Biomass pellet production line is integrated with local civil work, electrical service, fire protection and the biomass-furnace installation.

Equipment can be shipped from Qingdao to Yangon/Thilawa and moved by road to the Bago project area. Myanma Port Authority reports that Yangon Port has more than 3 million TEU of annual container-handling capacity across its port system, providing sufficient infrastructure for containerized machinery imports.

A project of this scale can typically be implemented in about 5–7 months when building repair, utility preparation and equipment manufacture proceed in parallel.