This project is to make use of waste resources and process waste resource rice husks into shaped biomass particles. The shaped biomass particles have the advantages of easy storage, transportation, convenient use, high combustion efficiency, clean and environmental protection. After the project is completed and put into production, it will solve the problem of inconvenient transportation of rice husks, increase jobs, promote local economic development, and have good economic and social benefits.
Large-scale Rice Husk Production Line Project
Project Investment: The total investment is 12 million RMB, including 150,000 RMB in environmental protection investment. All funds are raised by the company
This project is located in Xinyue Village, Lanxi Town, Heshan District, Yiyang City. It leases the existing new workshops and builds 8 new molding biomass pellet production line with a production scale of 40,000 tons/year. The plant of this project mainly includes a raw material warehouse and a production workshop. The building area is 1200m2, of which the raw material warehouse is 30m×15m×15m (length, width and height), and the production workshop is 30m×25m×20m (length, width and height). The construction content of this project consists of main engineering, storage and transportation engineering, public engineering, environmental protection engineering, and supporting engineering And other composition.
See the table below for details.
Table 1-1 List of project composition
|category||project name||Project content and scale|
|structural work||Production workshop||The first floor, with a steel frame structure, has a building area of about 1200m2 (30m×40m), with a height of 15m on one side and 20m on one side, 8 production lines, and a production scale of 40,000 tons per year.|
Storage and Transportation Engineering
|Raw material library||The building area of the raw material storage yard is about 450m2 (15m×30m), and the height is 15m. The raw material storage yard is used to
store collected raw materials.
|Raw material bucket||Composed of 5 hoppers and a prismatic steel frame structure, each hopper can branch out 2 outlets, the
maximum storage is about 200t.
|Finished bucket||It consists of 5 hoppers and a prismatic steel frame structure, with a maximum reserve of about 200t.|
|Finished product library||The finished product warehouse has an area of about 165m2, which is used for stacking and sealing finished products in bags.|
|Public works||Water supply||Part of the water used in the plant is provided by the municipal pipe network.|
|powered by||The power for the plant is supplied uniformly by the local power supply network.|
|Noise control||Choose low-noise equipment and take measures such as shock absorption, sound insulation and reasonable layout.|
Waste gas treatment
|The plant area adopts a closed type; the airtight duct conveys materials; the dust in the material is processed by a bag filter, and the escaped dust settles by gravity; part of the dust produced by granulation is discharged from the external environment with water vapor, and some is settled to the ground by gravity for cleaning processing; yard dust, dust duct, the dust bag filter, granulating dust, dust and transport belt have settled to the ground by gravity, clearing
the blast treatment.
|The office and living area relies on the infrastructure of Yiyang Huafeng Rice Industry Co., Ltd. The domestic sewage will be treated in the existing septic tank and used as agricultural fertilizer for comprehensive utilization; it is long expected that after the sewage pipe network is connected, the domestic sewage will be treated in the septic tank Reached the "Comprehensive Discharge Standard" (GB8978-1996) three-level standard, and then enters the Lanxi Town Sewage Treatment Plant for treatment, and reaches the "Urban Sewage Treatment Plant Pollutant Discharge Standard"
(GB18918-2002) and its revised single-level A standard. To the Yahe River in Lanxi Town.
|Solid waste disposal||The collected dust and household garbage shall be cleaned and transported by the sanitation department.|
Relying on engineering
|Yiyang Municipal Solid Waste Incineration Power Plant|
|Office and living area including offices, toilets, weighbridge and sewage treatment facilities, are relying on Yiyang City Limited Owen Rice Industry
According to the information provided by the builder, the annual consumption of raw materials for the project is approximately 43,200 tons. The raw and auxiliary materials of the project are detailed in the table below.
Table 1-2 List of main raw and auxiliary materials
|1||rice husk||About 43,200 tons/a||Outsourcing from the market, around the rice factory|
|2||Electricity||About 125,000 kW·h/a||Local grid|
|Raw material moisture content≦12%|
Molded biomass pellet products: The raw material is mainly rice husk. The molded biomass pellets have a diameter of about 8mm, a length of about 8cm, ash content≦8.0%, density≧1.1t/m3, and low calorific value 3200kg/kcal. The moisture content of the finished product is less than 5%.
According to the information provided by the builder, the equipment equipped for the project is shown in the table below.
Table 1-3 List of main equipment
|Serial number||Equipment name||Quantity||unit|
|6||Air duct||About 20m long||m|
6. See the Table Below for the Project Water Consumption Estimation Table
Table 1-4 Project water consumption estimation table
|project||Unit dosage||Quantity||Daily water consumption
( m3 /d )
|Annual water consumption
( m3/a )
( m3 /d )
( m3/a )
|Staff domestic water||50L/person·d||6 people||0.3||90||0.24||72|
Domestic water for transportation personnel
The labor force is 6 people, the annual working days are 300 days, they do not eat and lodging in the factory, and do not produce at night.
The process of this project has strict requirements on the moisture content of raw materials. According to the information provided by the construction unit, the moisture content of the raw materials purchased in this project is less than 12%, and the moisture content of the finished product is not higher than 5%.
The raw materials are stored in the raw material warehouse, and the raw materials are transported through the airtight duct. The storage yard dust G1 will be generated in the raw material warehouse.
② Lifting by hoist
The materials transported by the air duct are lifted to the next process through the hoist, and this process will generate dust G2. The material lifted by the hoist is dusted by the dust collector and then transported to the raw material hopper. This process will produce dust G3.
The material in the raw material hopper is transported to the feed inlet of the granulator due to the action of the center of gravity. Under the conditions of high temperature and high pressure, the moisture is discharged to the atmosphere through the pipeline in the form of water vapor. The raw material is compressed into molded biomass particles and transported to the pelletizer via a belt conveyor. The next process. The granulation process adopts electric heating, and the granulation temperature is 80℃~120℃ (according to the information provided by the granulator manufacturer). This process generates dust G4.
10-15t/h Rice Husk Pellet Machine
After being processed by the pelletizer, the formed biomass particles fall from the discharge port to the belt conveyor, and are conveyed by the belt conveyor to the elevator. This process generates dust G5.
⑤ Lifting and cooling of hoist
The elevator lifts and conveys the formed biomass particles to the raw material hopper, and adopts air cooling during the conveying process. The wind cooling process is closed and uses electric energy. This process generates dust G2.
⑥Bagging and storage of finished products
After cooling, the formed biomass particles are temporarily stored in the finished product hopper, and some finished products are bagged and sealed in the finished product warehouse. This process generates dust G1.
The finished product is sold out.
The entire production process of the project is completed on a closed assembly line, and the belt conveyor process is open. This project is equipped with 3 belt conveyors, one for the uniform distribution of raw materials in the finished product hopper, one for conveying the molded biomass particles from the discharge port of the pelletizer to the elevator, and one for conveying the molded biomass particles Evenly distributed in the finished product bucket.
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