Biomass Pellet Processing Plant In Vietnam

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overview

The project mainly produces biomass pellets. The customer purchased a full set of biomass pellet production, including 4 sets of biomass pellet equipment, 1 set of floor scales, 1 shredder, 2 crushers, 2 dryers and other related equipment.

The biomass pellet processing plant in Vietnam project has 1 production workshop, 1 warehouse and 1 office building; the production workshop is located on the northeast side of the plant, the warehouse is located on the southeast side of the plant, and the office building is located on the west side of the plant; the production workshop is from west to east, followed by feeding, crushing, screening, crushing, drying, granulation, cooling, and packaging processes; the project layout is smooth and the various parts are compact and reasonable.

In addition, the annual electricity consumption of the project is 300,000 kWh, mainly for mechanical equipment and lighting, which can meet the power demand of the project. The project has a labor quota of 9 people, none of whom will be accommodated in the factory. The project adopts a one-shift work system, with each shift working 8 hours and an annual working time of 300 days.

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Construction content

This biomass pellet processing plant in Vietnam project covers an area of 3,868 square meters and a total construction area of
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1,450 square meters. The project will build a new warehouse of 450 square meters. The construction period mainly includes ground leveling and hardening, factory building construction, equipment installation and other construction sections. The details of the project’s structures are shown in the table below.

Engineering composition		Construction content
Main engineering	Production workshop	1F, building area 600m2
Auxiliary engineering	Warehouse	1F, building area 450m2
	Office	1F, building area 400m2
Public engineering	Water supply	Centralized water supply
	Drainage	Rainwater and sewage are separated; domestic sewage is treated in a septic tank (volume 10m3) and used for circulation Enclose farmland and fertilize it, no discharge
	Power supply	Local power supply station
Environmental protection engineering	Waste gas treatment	Dust from raw material loading and unloading: set up a fully enclosed warehouse, install hard doors at the warehouse entrance and exit, and close the door when there are no vehicles in and out
		Dust from the project loading, crushing, screening, pulverizing, drying, granulating, and conveying processes: the belt conveyor is fully enclosed, the crusher is enclosed on three sides, and the crusher, crusher, dryer, and granulator are equipped with gas collection hoods at the loading and unloading ports. The dust is collected by the gas collection hood and treated by the membrane bag dust collector before being discharged through the 15m high exhaust pipe DA001
		Hot blast furnace exhaust gas: install low nitrogen combustion device + 15m high exhaust pipe DA001 Discharge
	Wastewater treatment	Domestic sewage is treated in septic tanks (volume 10m3) and used for fertilizing surrounding farmland, and is not discharged
	Noise control	Foundation vibration reduction, factory sound insulation, wall sound insulation
	Solid waste treatment	①Domestic waste: After being collected in garbage bins, it is regularly transported to garbage transfer stations for treatment; ②General solid waste: Waste packaging materials are collected and temporarily stored, and then sold; dust is collected by dust collectors and then reused in production.

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Product plan

The product plan for this biomass pellet processing plant in Vietnam project is detailed in the table below.

No.	Product	Annual output
1	Biomass pellets	30000t

The biomass pellets in this project do not use additives and comply with the Technical Conditions for Biomass Solid Molding Fuel standards. The specific standards are shown in the table below:

No.	Indicator Item	Unit	Pellet fuel
			Main raw material is wood
1	Maximum size of diameter and cross-sectional area (D)	mm	≤25
2	Length	mm	≤4D
3	Molding fuel density	kg/m3	≥1000
4	Moisture content	%	≤13
5	Ash content	%	d>≤6
6	Low calorific value	MJ/k	≥16.9
7	Breakage rate	%	≤5
8	Sulfur content	%	≤0. 2
9	Potassium content	%	≤1
10	Chlorine content	%	≤0.8
11	Additive content	%	Non-toxic, tasteless, harmless ≤2

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Raw and auxiliary materials and energy consumption

The main raw and auxiliary materials and energy consumption of this biomass pellet processing plant in Vietnam project are detailed in the table below.

No.	Raw materials and energy	Annual consumption	Remarks
1	Waste wood	15000t	Purchased, baled, moisture content 15-17%
2	Straw	3000t	Purchased, briquetted straw, including Water content is 15-17%
3	Branches	15,000t	Purchased, packaged, moisture content is 15-17%
4	Natural gas	500,000m3	Bottled natural gas, storage capacity 5t
5	Water	135m3	Centralized water supply
6	Electricity	300,000kWh	Power supply station

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Main production equipment

The main equipment of this biomass pellet processing plant in Vietnam project is shown in the table below.

No.	Equipment Name	QTY	Remarks
1	Shredder	1	Crushing, Screening
2	Crusher	2	Crushing
3	Biomass Dryer	2	Drying
4	Hot Blast Furnace	2	Heating
5	biomass fuel pellet machine	4	Pelletizing
6	Finished product silo	1	Finished product temporary storage and cooling
7	Packaging machine	1	Packaging
8	Belt conveyor	13	Material conveying
9	Forklift	1	Material transfer

In order to ensure the high combustion value and non-coking characteristics of the project products and satisfy users, this project strictly controls the source of raw materials and ensures the quality of raw materials.

The project only recycles waste wood generated by the rough processing of wood in various woodyards and furniture factories, damaged waste wood by various packaging companies and transportation companies, branches cleared from greening and trees (leaves have been cleared), and straw dried at the project site. Raw materials containing impurities such as spray paint, glue, metal, and cement are not recycled. The raw materials used in this project do not contain glue, paint, coating, and other chemical substances.

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Process Design of Vietnam Biomass Pellets Project

Brief description of the process flow of this biomass pellet processing plant in Vietnam project:

① Loading

Buy bundled waste wood, branches, and briquetted straw, which are transported into the factory area by car and stored in the warehouse; during production, the waste wood, branches, and straw are poured into the crusher hopper by forklift. This process produces loading dust.

② Crushing

Use a crusher to crush waste wood, branches, and straw into small pieces.

③ Screening

There is a screen under the crusher. Fine materials with a particle size of less than 5mm pass through the screen and enter the closed belt conveyor. Materials with a particle size greater than 5mm continue to be crushed.

④ Crushing

The screened fine materials are conveyed to the crusher by a closed belt conveyor and crushed into fine materials with a size less than 30 mesh.

⑤ Drying

The crushed materials are sent to the dryer for drying by a closed belt conveyor. The drying method of this project is direct drying. The hot air generated by the natural gas hot air furnace enters the drying cylinder to dry the materials. The drying temperature is 90℃ and the drying time is 10min, so that the moisture content of the materials is reduced to less than 10%.

⑥ Granulation

The dried materials are conveyed to the hopper of the biomass granulator by a closed belt conveyor. The materials enter the granulator granule chamber through the hopper and are pressed by a mold to obtain biomass shaped particles that meet the length and density requirements.

⑦ Cooling

The granulated materials are conveyed to the finished product silo by a closed belt conveyor for natural cooling to room temperature.

⑧ Packaging

The cooled materials are transported to the packaging machine by a closed belt conveyor for packaging. The packaging specifications are 25kg/bag or 1 ton/bag and stored for sale.

If you are interested in this biomass pellet processing plant in Vietnam project and want to build your own biomass pellet production line, feel free to contact RICHI MACHINERY to get a free biomass pellet making plant construction plan, equipment quotation, process design and layout.