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30 Tons/day Straw Pellet Production Line Project

  • Date: 2021-01-11 08:30:14
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The straw pellet production line mainly uses corn stalks, soybean stalks, cotton stalks, wheat stalks and other agricultural and forestry wastes as raw materials, and is pressed into pellet fuel by a straw pellet machine, which is usually used for boiler combustion, power plant combustion and household heating. Today, I will introduce to you a straw pellet production line with an annual output of 9,000 tons, 30 tons per day, and 4 tons per hour.

30 Tons/day Straw Pellet Production Line Project
30 Tons/day Straw Pellet Production Line Project

1. Construction Content of Straw Pellet Production Line

Table 1-1 List of product plans for acceptance projects

Serial number product name Design capacity
Equipment configuration Operating hours per year (h)
Equipment name Number of units Is there a change Equipment configuration
1 Biomass pellet fuel 9000 Fragmentation machine 1 no New 2400
grinder 1 no New
Dryer 1 The equipment has not yet been put into use /
Granulator 3 no New
Screening machine 1 no New
Conveyor 5 no New
Fan 3 no New

Table 1-2 List of construction content and actual construction content during the EIA and approval stage

content Construction content of EIA and approval stage Actual construction content Remarks
structural work A factory building: construction area of ​​8,000 square meters, The production workshop is the same as the EIA (see Figure 3-10) Consistent
Storage and Transportation Engineering A warehouse: a building area of ​​4000 square meters No new warehouse has been built yet, and some raw materials and products are stored in the production workshop Not yet built
Auxiliary engineering Set up a 2-story office area on the southeast side of the plant, with an area of ​​1200 square meters The office area and living area are temporary prefabricated houses (see Figure 3-11). Not yet built
Doorman: building area of ​​50 square meters
Public works Water supply system: 1.82t/d; drainage 0.96t/d Water supply system: 1.73t/d; drainage 1.38t/d (see attachment) Over 75%
Power supply system: 200,000 degrees/a Power supply system: 190,000 degrees/a (see attachment) Over 75%
Drainage system: After the septic tank is treated, it will be used as fertilizer in the near future, and the sewage pipe network will be connected in the long term Consistent with EIA, see Figure 3-12 and attachment Sign agreements with surrounding farmers
Environmental Engineering Wastewater treatment 5m 3 septic tank Consistent with EIA, see Figure 3-12 Consistent
Waste gas treatment Combustion waste gas: 5000m 3 /h is treated by a bag filter and discharged through a 15-meter high exhaust cylinder The section has not yet been constructed and is not within the scope of this acceptance Not built
Drying dust: 3000m 3 /h processed by a bag filter and discharged through a 15-meter high exhaust tube Not built
Processing dust: 10000m 3 /h negative pressure collection, using pulse bag filter treatment, exhaust gas is discharged through a 15-meter high exhaust cylinder A bag filter is installed at the feed inlet of the crushing section to collect dust. After the crushed dust is processed by the pulse bag filter, large particles enter the silo, and the small particles are collected by negative pressure and discharged through a 15-meter high exhaust cylinder, as shown in the figure 3-14, 3-15, 3-16, 3-17 Consistent
Noise control Vibration and sound insulation, reasonable layout Choose low-noise equipment, and take measures such as sound insulation and vibration reduction of the workshop. See Figure 3-19 Consistent
Solid waste treatment Set up solid waste collection points Located in the northwest of the factory area, see Figure 3-13 constant
Domestic garbage is handled uniformly by the sanitation department Domestic garbage is handled uniformly by the sanitation department constant
Dust recycling Consistent with the environmental assessment, the collected dust is reused for production constant
Waste packaging materials recycling takeaway Sold to material recycling company, see attachment constant
Greening Green area of ​​1,860 square meters, planting of seedlings and flowers Green area of ​​2000 square meters, planting of seedlings and flowers constant

2. Main Raw and Auxiliary Materials and Fuels

The main raw and auxiliary materials used in the acceptance project are shown in Table 1-3.

Table 1-3 List of main raw and auxiliary materials and energy consumption and usage of acceptance projects

Serial number Raw and auxiliary materials Design consumption (October- 3 0 - December 3 0 days) Consumption (t) load(%)
1 Straw 10589.72 (tons/year) 1920 tons 90.7
2 water 546 (tons/year) 104 tons 95.2
3 Electricity 20 (10,000 degrees/year) 38,000 degrees 95
4 other Biomass shaped particles 360t/a At present, the raw materials generate heat by mechanical friction of the granulator, reducing the water content of the raw materials to less than 20%, which can meet customer needs, so the drying section has not been built. The drying section is placed in the second phase of construction and is not within the scope of this acceptance /

3. Production Process of Straw Pellet Production Line

(1) Fragmentation: Use a fragmentation machine to break the incoming straw into small pieces. This process generates noise (N1) and dust (G1);

(2) Crushing: Use a crusher to crush the broken straw into small particles that meet the requirements. This process generates dust (G2) and noise (N2);

(3) Drying: The crushed particles are dried. The average water content of the raw materials purchased in this project is about 20%, and it needs to be dried to 5% before production. The dryer is used in this project. Biomass hot air stove, the fuel is biomass pellets, and the temperature of the dryer is controlled at 150-250℃. This process produces dust (G3), combustion exhaust gas (G4), noise (N3), and ash (S1);

(4) Granulation: The dried granules are conveyed to the granulator through the conveyor for granulation, and the finished product is made by extrusion molding. The extrusion process is a physical process without any adhesive and no chemical reaction. , This process mainly produces dust (G5) and noise (N4);

(5) Inspection: The unformed or unqualified pellets are screened out by the screening machine, and this part of the pellets enters the crushing device to be reused without discharge. This process generates dust (G6) and noise (N5);

(6) Packing and warehousing: the products that have passed the inspection are packed and put into the warehouse. This process mainly produces waste packaging materials (S2).

4. Production Conditions of Straw Pellet Production Line

During the acceptance period from December 19 to 20, 2018, the production of this project was normal, and the environmental protection facilities were operating normally. The production load is greater than 75%, meeting the acceptance monitoring requirements. The working condition record is provided by Binhai New Lantian Biomass Fuel Co., Ltd. (see attachment). The working conditions during the monitoring period are shown in Table 1-4.

Table 1-4 Summary of production load during acceptance monitoring

Monitoring time product Design capacity (tons/day) Actual output (tons/day) Load %
2018-12-19 Biomass particles 30 27 90.0
2018-12-20 30 28 93.3

The above is the article for you: 30 Tons/day Straw Pellet Production Line Project.

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