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How Does a Large Biomass Pellet Plant Make Wood Block Into Pellet Fuel?

Date:2021-03-08 17:21:52    From:    Clicks: 6

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For large biomass pellet plants, the raw materials used to build a biomass pellet production line are very abundant. Our common ones are wood, wood chips, wood block, branches and so on. How to make wood block into pellet fuel? In fact, the production steps are the same as wood chips and wood. First, the wood block needs to be crushed with a wood chipper, and then crushed into sawdust with a wood hammer mill, and then dried, granulated, cooled, sieved, packaged, etc. This project is a large-scale project with an annual output of 150,000 tons of biomass pellets, with an average output of 30 tons of wood pellets per hour. The project covers an area of 40,000 square meters and has a labor force of 15 people. It adopts a two-shift system with 8 hours per shift, 300 days of work per year and 4,800 hours per year.

How Does a Large Biomass Pellet Plant Make Wood Block Into Pellet Fuel
How Does a Large Biomass Pellet Plant Make Wood Block Into Pellet Fuel

1. Product plan

Table 1 List of main product schemes of this project

Serial number product name specification Design ability ( t/a ) Annual operating hours
1 Molded biomass pellet fuel According to order requirements 150000 4800h/a

Product quality indicators are shown in Table 2.

Table 2 Product quality indicators of this project

project symbol unit index
Total moisture Mt % ≤15
Ash Ad % ≤10
Volatile Vd % ≥63
Total sulfur St, d % ≤0.20
Calorific value MJ/kg ≥14

2. Project area

The project covers an area of ​​40,000 m2 (60 acres), and the main building area is 18,600 m2. See Table 3 for details.

Table 3 List of land area of ​​this project

category Building name Designing ability Remarks
structural work Manufacturing Plant Annual production of 150,000 tons of particulate fuel Building area 3256m 2 , leased
Auxiliary engineering Office Daily administrative office Building area of ​​200m 2 , brick-concrete
Canteen, dormitory For staff board and lodging Building area of ​​600m 2 , brick-concrete

3. Raw and auxiliary materials

The main raw and auxiliary materials are shown in Table 4

Table 4 Consumption of main raw and auxiliary materials of this project

Serial number name Annual consumption (t/a)
1 wood block 159400

4. Main equipment

The main equipment is shown in Table 5.

Table 5 Main equipment of this project

Serial number Equipment name Quantity unit
1 Fragmentation machine 1 station
2 grinder 1 station
3 Wood pellet mill 4 station
4 Screening machine 1 station
5 Conveying equipment 2 station
6 Fan 3 station

5. Process flow

(1) Crushing: the raw wood block is crushed by a wood crusher;

(2) Granulation: The crushed raw materials are transported to the raw material bin by conveyor belt, and then transported by the screw auger into the wood pellet mill for granulation. The granulation is made into finished products by extrusion molding, and the extrusion process is a physical process. , No adhesive is added, no chemical reaction occurs;

(3) Inspection: The unformed or unqualified particles are screened out by the screening machine, and this part of the particles enters the crushing device for reuse, and there is no discharge;

(4) Packing and warehousing: the products that have passed the inspection are packed and put into the warehouse.

6.Application of Wood Block Pellets

Wood block pellets are usually used in 3 areas: heat supply, industrial boilers, and power generation.

Wood block

(1) Industrial boiler fuels

Wood pellets are used in industrial boilers as an alternative for coal and natural gas. Conventional fuels usually have the problems of pollution or high cost. Wood pellets are carbon neutral, with little sulfur or nitrogen content.

(2) Thermal and gasification power generation

Wood pellets also serves as fuel for thermal power generation and gasification power generation. It has high heat value and low pollutant emission. Many countries have carried out policies to encourage biomass power generation. testing in the RICHI Innovation Center, to engineering, process development, design and equipment manufacturing, our team is highly skilled in the field of organics granulation.

(3) Home heating, heat supply

They can be used in pellet heating stove and furnace. They can connect with pipes, boilers, and heating radiators to build a heating system at home. Wood pellets are clean, with little ash residues. It is convenient to store, transport, and use.

Richi Machinery produces a variety of wood pellet machinery and equipment, including large-scale wood pellet production lines and turnkey projects, large-volume biomass pellet production lines, high-efficiency sawdust pellet production line turnkey projects, and so on. The company has focused on pellet machine production line equipment for 28 years. We are currently exported to 113 countries, with reliable quality and trustworthy!

The last:Large-scale Turnkey Project: 20 Tons/hour Biomass Pellet Fuel Production Line Project The next:How to Use Furniture Factory Sawdust, Shavings, Wood Chips, Bamboo Shavings and Waste Crops to Make Biomass Pellet Fuel?

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