Sawdust Pellet plant In UK

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overview

This is a small sawdust pellet plant in UK project. The client of this project, an environmental technology company, signed a contract with RICHI in October 2023 to build a sawdust pellet plant project to produce biomass pellets using waste sawdust as raw material. Sawdust was originally a waste from sawdust processing, and improper disposal can lead to environmental pollution and waste. This project can not only reduce pollution but also recycle waste, which meets the requirements of sustainable development.

The client of this sawdust pelletizing line project uses the existing idle factory to build a pellet production line, which will produce 2,000 tons of sawdust pellet fuel annually. The main buildings of this project include production plants and supporting facilities. The staff of this project is 5 people, and the employees are nearby residents. They only eat lunch in the factory area and do not stay overnight. The project works 300 days a year.

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Construction content

The main construction content of this sawdust pellet plant in UK project mainly includes biomass pellet production plant, office area, and raw material storage area. The project uses local waste sawdust to extrude and mold biomass pellets. The project consists of a production plant and an office area.

The main entrance of this project is located in the southeast of the project. The project office area is located on the south side of the factory building, and the factory building is reasonably divided. Greenery is distributed around the factory building and living area.

The main construction contents are shown in the table below.

Engineering Classification	Engineering Name		Construction Content
Main Engineering	Production Plant		Brick structure; 1 building, 1 storey, 5m high; area 800m2; divided into production area, raw material area and finished product area. The production area is equipped with equipment such as pellet machines and dryers.
Supporting Engineering	Raw material yard		Steel frame structure; located in the northeast of the production workshop; area of ​​100㎡; storage capacity is about 20t
	Office building	Utility room	1-story brick structure, covering an area of 5㎡
		Canteen	1-story brick structure, covering an area of 5㎡
		Office	1-story brick structure, covering an area of 5㎡
		Lounge	1-story brick structure, 2 rooms, each 5㎡
	Toilet		1, covering an area of 5m2
Public Engineering	Water supply		Provided by the water supply network
	Drainage		Domestic sewage and wastewater are discharged into septic tanks for treatment and used as agricultural fertilizer
	Power supply		Self-provided 250KVA transformer

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List of main production equipment

The main production equipment of this sawdust pellet plant in UK project is shown in the table below.

No.	Equipment Name	QTY	Remarks
1	sawdust Pellet Machine	1	Self-contained Dust Removal Equipment
2	Dryer	1	Water Bath Dust Removal
3	Draught Fan	1	/
4	Dust collector	1	Used for dust removal of dryer flue gas
5	Conveyor belt	1	With self-screening function
6	Shredder	1	With self-bag dust collector

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List of raw and auxiliary materials

The consumption of raw and auxiliary materials for this project is detailed in the table below:

No.	Name	QTY	Remarks
1	Sawdust	3500t/a	Purchased
2	Biomass pellet fuel	60t/a	Self-produced, used for drying
3	Water	75t/a	Tap water
4	Electricity	1KWh/a	/

The sawdust required for this production is purchased from outside, which contains 5% of large pieces of wood and wood chips that need to be crushed and processed into sawdust.

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Product plan

The sawdust pellet product plan for this sawdust pellet plant in UK project is shown in the table below:

Diameter	Length	Moisture	Heat value
Ø6mm～8mm	15～20mm	≤13%	4,100
Ash content	Density	Boiler thermal efficiency	Ton steam fuel consumption (kg/t)
≤8.0%	≥1.1mt/ m³	89%	164.4

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Description of the British sawdust pellet processing process

Based on the customer’s raw materials and needs, RICHI engineers designed the following processing flow for the sawdust pellet plant in UK project:

1. Screening and crushing

The belt conveyor has its own screening function, and the large pieces of raw materials in the sawdust are transported to the crusher for crushing and reuse. According to the information provided by the construction party, the raw materials to be crushed in the project account for 5% of the total raw materials, so the crushing capacity is 175t/a.

2. Drying

The granulation process has strict requirements on the moisture content of sawdust. Therefore, this UK sawdust wood pellet production line project is dried before granulation, strictly controlling the moisture content and drying all raw materials. In the drying process, the sawdust is transported to a fully enclosed drum sawdust dryer, and the hot flue gas of the drying furnace is introduced into the drying furnace through the induced draft fan for drying. The induced draft fan introduces all the sawdust and hot flue gas in the drum dryer into the water bath dust collector.

3. Granulation

The dried raw materials are conveyed to the feeding auger by a belt and sent to the pelletizer for pelleting. The sawdust wood pelletizer uses the moisture contained in the sawdust to press the sawdust into pellets by pure physical pressure, and the pelletizing process uses electric heating extrusion molding. The sawdust fuel pellet making machine is equipped with a dust removal device, and the dust generated is collected and reused in the production line.

4. Cooling

The pelletized sawdust pellets are conveyed to the cooling silo by belts for natural cooling.

5. Packaging

The cooled sawdust fuel is manually packaged and stored in the finished product area.

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Public works

(1) Power supply

The power supply of this project is provided by the rural power grid, which can meet the power demand of the sawdust pellet plant in UK project.

(2) Water supply and drainage

Water supply: The water source of the site is tap water, which is used for construction and domestic water. The water supply system is used for daily life, greening, etc. The project water consumption is about 75m³/a, which can meet the needs of the project.

Drainage: The domestic sewage of this project is treated in a septic tank and used for fertilization and greening, and is not discharged.

(3) Fire protection system

The fire protection design implements the principle of “prevention first, prevention and control combined”, based on self-prevention and self-rescue. A variety of fire protection measures are taken for different buildings (structures) and facilities. The process design, equipment and material selection, plane layout, and fire escape passages are all implemented in accordance with relevant fire regulations. Fire design, fire electrical design, mobile fire extinguisher design, ventilation fire design, etc. are carried out for major locations and major electromechanical equipment.

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Environmental protection measures

The environmental protection measures taken by this sawdust pellet plant in UK project are as follows:

During the construction period	Water pollutants	equipment washing water, domestic sewage	COD, petroleum	Will be partially reused after treatment, and the remaining part will be used for irrigation and greening.
	Air pollutants	Mechanical construction	Dust	Watering, closed operation
	Solid waste	Construction and decoration process	Construction waste, domestic waste	Domestic waste is sent to temporary garbage collection stations; construction waste is backfilled in low-lying areas
	Noise	Construction process	Construction equipment noise, vehicle noise	Closed construction, choose low-noise equipment, and arrange construction time reasonably
Operation period	Water pollutants	Domestic sewage	COD, NH3-N	Irrigation after septic tank treatment
	Air pollutants	Drum dryer exhaust	Dust	Exhaust 15m after water bath dust collector treatment
		Drying furnace exhaust	Smoke
		Granulation dust	Dust	Equipment comes with bag dust collector
	Solid waste	Domestic garbage	Domestic garbage	Sanitation department removal
		Dust ash	Dust ash	Recycled as raw material
		Drying slag	Drying slag	Sanitation department farmers removal
		Dust collector sediment	Dust collector sediment	Sanitation department removal
	Noise	Production equipment noise	Equipment noise	Reasonable layout, good equipment shock reduction and noise reduction measures

If you are interested in this project and want to build a sawdust pellet plant in UK project, please feel free to contact RICHI MACHINERY to get free design, civil engineering plan, production line layout, equipment quotation and other information!