5 T/h Biomass Sawdust Pellet Production Line Project

Date: 12/07/2020 08:36:11 From: wood-pellet-plant.com Clicks:

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Biomass mainly refers to wastes such as crop straw, forestry and wood processing. Biomass energy is an important renewable energy source. Biomass pellet fuel has high volatile content, easy precipitation, good carbon activity, flammability, low ash content, fast ignition, more fuel saving, and lower use cost. The formed biomass particles are small in volume, high in specificity, high in density, resistant to combustion, easy to store and transport, and the calorific value can reach between 3900-4800 kcal. It is an ideal new fuel and is widely used in domestic stoves and hot water boilers. , Industrial boilers and biomass power plants.

Biomass Sawdust Pellet Production Line Project

1. Basic Situation of the Project

The Sawdust pellet production line project is 5t/h per hour, working 8 hours a day, and producing 40 tons of wood pellets a day. Working 300 days a year is 12,000 tons/year. The actual total investment of this project is 4 million yuan, with an annual output of 12,000 tons of shaped biomass pellets. There are 10 employees in this project, and the annual working time is about 300 days. The basic situation of the project is shown in Table 1:

Table 1 List of basic information of this project

project name	5 T/h Biomass Sawdust Pellet Production Line Project
Location	Cangshuipu Village, Cangshuipu Town, Heshan District, Yiyang City
Project nature	New	Industry category and code		Non-metallic waste and scrap C4220 plus -tasking
Area	2653m ²	Production scale		Annual production of 12,000 tons of biomass pellets
Investment situation	It is estimated that the total investment of the project is 4 million yuan, and the environmental protection investment is about 200,000 yuan, accounting for 5% of the total investment
	The actual total investment is 4 million yuan, and the environmental protection investment is about 200,000 yuan, accounting for 5% of the total investment
Start time	July 2019	Completion time	August 2019
Labor quota	10 people	Work system	8 hours a day, 300 working days per year

2. The Main Construction Content of the Project

The construction content and actual construction content approved by the environmental impact assessment and approval department of this project are shown in Table 2:

Table 2 List of main construction contents of the project

Serial number	Environmental impact assessment construction			Actual construction situation
structural work	Granulation area		1F, an area of about 400m ² , mainly granulation step, plant located east room, provided granulator 2	Consistent with EIA
Auxiliary engineering	Office building		1F, covers an area of 60m ² for office	Consistent with EIA
Storage and Transportation Engineering	Raw material area		1F, an area of about 700m ² , the main raw material used for stacking, the bit in the northern part of the plant	Consistent with EIA
	warehouse		1F, with an area of about 300m ² , mainly used for stacking finished products, located in the west of the plant
Public works	Water supply	Provided by the factory's own well		Consistent with EIA
	powered by	Uniformly supplied by the local power supply network		Consistent with EIA
	drain	Rain and sewage diversion system, no water is required for the production of this project, and no production wastewater is produced; domestic sewage is treated in septic tanks and used as fertilizer for comprehensive utilization and not discharged		Consistent with EIA
Environmental Engineering	Wastewater treatment	The project produced without water, no waste water is generated; by sewage of the septic tank process used to make agricultural fertilizer, utilization, not discharged.		Consistent with EIA
	Waste gas treatment	The dust generated in the process of raw material storage, transportation, loading and unloading dust, product storage, transportation, loading and unloading, and packaging is discharged in an unorganized form after being settled in the workshop; the granulating dust is settled in the workshop after the bag dust removal treatment, and after the settlement, it is unorganized Form emissions, and reduce unorganized dust emissions from the project by strengthening management and other measures .		Consistent with EIA
	Solid waste treatment	Waste lubricating oil and other hazardous waste temporarily stored in the temporary storage of hazardous waste between regularly referred to qualified units Sinotrans processing; garbage handed over to the sanitation department uniform removal of the processing; floor cleaning and dust removal system to collect dust for return produce.		Consistent with EIA
	Noise prevention	Use low-noise equipment, reasonable layout, vibration and sound insulation, and strengthen equipment maintenance		Consistent with EIA

3. Project Product Plan

The project will produce 12,000 tons of shaped biomass pellets per year. The specific product plan is shown in Table 3.

Table 3 List of project product plans

name	unit	Annual output	Remarks
Molded biomass pellets	Ten thousand tons	1.2	The diameter of the formed biomass particles is about 8mm, the length is about 8cm, the ash content is less than or equal to 8.0%, the density is more than or equal to 1.1t/m ³ , and the low calorific value is 3200kg/kcal. The moisture content of the finished product is less than 5%.
total	Ten thousand tons	1.2	/

4. Main Raw and Auxiliary Materials

Compared with the EIA report and its approval stage, the raw and auxiliary materials and energy usage are the same. For details, see Table 4:

Table 4 List of project raw and auxiliary materials consumption

Serial number	name	Annual consumption	Remarks
1	Sawdust	12030t	The crushed sawdust purchased from outside has a moisture content of about 8%. It is stored in the raw material area without drying during the production process. The maximum storage capacity is 30t
2	water	150m³	Factory-owned well
3	Electricity	30,000 KW•h	Powered by the power supply system of Cangshuipu Town

5. Main Production Equipment

Compared with the EIA report and its approval stage, the use of main production equipment is the same. For details, see Table 5:

Table 5 List of Major Equipment List

Serial number	category	name	Specification model	Quantity (unit)	Remarks
1	produce	Wood pellet machine	508#	2 sets	Granulation process
2	Auxiliary equipment	conveyor	——	2 pieces	Transportation auxiliary equipment
3		Hoist	——	1 set
4		Forklift	——	1 set
5	Green facilities	Waste gas treatment equipment		1 set	Air collecting hood + bag dust removal device

6. Introduction to Process Flow

The production process of this project is relatively simple, all processes are physical processes,

(1) Raw materials

The raw materials of the project are transported by vehicles to the raw material workshop for backup, and a certain amount of dust is generated during the raw material transportation.

(2) Granulation

The wood chips of this project have been crushed before entering the factory and can be directly processed into granules. The raw material for granulation is only sawdust without any additives. The principle of the pellet machine is that the fine material is rolled and extruded, and the wood chips are deformed and extruded into pellets under high temperature and high pressure. Under the conditions of high temperature and high pressure, the moisture in the raw materials is condensed into liquid water through pipelines and discharged to the outside environment in the form of steam. The raw materials are compressed into molded biomass particles and transported to the next process by a belt conveyor. The granulating process adopts electric heating, and the granulating temperature is 80℃~120℃. This process will generate a small amount of dust, water vapor and noise.

(3) Packaging

The compressed biomass pellets generally have a temperature of 40~50℃, and need to be cooled in the case of packaging. The pelletized product is transported to the finished product yard by a conveyor belt for natural cooling, and then packaged after cooling. The packaging process of this project is manual packaging .

Note: The raw material produced in this project is sawdust, which has been crushed before entering the factory, and the moisture content is about 8%, which meets the requirements of granulation and molding. Therefore, there is no need to dry during the production process. The water content is water under the action of high temperature and high pressure during the granulation process. The form of steam is lost.

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