Learn more : Biomass pellet fuel , biomass pellet burner , environmentally friendly energy efficient furnace
In recent years, due to the continuous high coal prices in the country, some enterprises are driven by the interests. In order to save costs, the use of low-cost and high-sulfur coal to replace the original low-sulfur coal has offset the “Eleventh Five-Year†sulfur dioxide emission reduction results in our district. Intensified the atmospheric pollution in our area. On the other hand, our district is a traditional agricultural production area, and the wood processing industry is also relatively developed. A large number of wood residues such as straw, rice husk and other wood residues and wood chips are not fully utilized. In order to promote the energy conservation and emission reduction work in our district, develop a low carbon recycling economy, successfully complete the “Eleventh Five-Year†sulfur dioxide emission reduction targets, and pave the way for the “Twelfth Five-Year Plan†emission reduction, optimize the atmospheric environment of our district, Yucheng Environmental Protection Bureau carry out experimental work in the area in early 2010 to promote the substitution of coal with biomass fuels.
First, the advantages of biomass pellet fuel machine
   Biomass pellet fuel
Biomass fuel refers to compressed particulate fuel processed under certain conditions by using agricultural residues such as straw, rice husk and wood processing residues such as wood chips. Biomass fuels have low ash content and sulfur and nitrogen content. They are renewable fuels with clean, efficient, environmentally-friendly and energy-saving properties, and can indirectly replace coal, oil, electricity, natural gas and other energy sources. The ash remaining after the biomass fuel is fully burned is substantially free of carbon. Therefore, the heat loss from the incomplete combustion of the solid is substantially zero, while the heat loss from the incomplete combustion of the coal is about 7 to 15% . The amount of sulfur dioxide emitted by coal fired by relevant quality inspection agencies is 20.5 times that of biomass fuel . Therefore, in addition to replacing coal, oil and other fuels, biomass pellet fuel can also reduce air pollution.
Biomass is solar energy that is fixed to the earth by photosynthesis of plants. The annual biomass produced by photosynthesis on Earth is about 170 billion tons, and its energy is about 10 times that of the world's main fuel . However, as an energy source, its utilization is less than 1% of its total . On the other hand, due to our excessive consumption of limited resources such as fossil fuels, the release of large amounts of excess energy and carbon-containing gases has broken the energy and carbon balance of nature and exacerbated the global climate deterioration. Through biomass energy conversion technology, biomass energy can be efficiently utilized to produce various clean fuels and reduce environmental pollution.
At present, some of the straw in agricultural waste in our district is directly incinerated and discarded in the field, generating a large amount of carbon dioxide, which not only wastes a lot of energy, but also causes serious environmental pollution, which has caused certain social life, economic development and environmental protection. The extent of the impact. At present, the United States, Canada, Finland and other countries, as well as domestic Beijing, Shenyang, Shanghai and other places, have used particulate fuel as a clean energy source and have demonstrated significant economic and environmental effects. In our district , 39.5 tons of hourly boilers for 9 enterprises have been piloted. According to statistics, 21673.6 tons of agricultural residues such as rice husks and sawdust and other wood processing residues ( biomass fuel ) can be used to save 18683.5 tons of coal . Per year.
　　 1. Improve the ecological environment. The biomass fuel used in our district mainly refers to agricultural residues such as rice husks and wood processing residues such as sawdust. Due to random disposal, the utilization level is low, dust is generated and the environment is polluted. The use of waste biomass as fuel in our district is conducive to eliminating the phenomenon of random dumping, turning waste biomass into waste, reducing waste of resources, improving environmental pollution, and finding solutions to agricultural residues and wood processing residues. A better way out.
　　 2. Increase economic efficiency. The district can replace about 20,000 tons of coal , which can greatly alleviate the serious problem of tight coal supply and increased coal burning costs. According to the current 1000 yuan per ton of coal, biomass fuel prices 360 yuan per ton, while 10,000 tons per combustion of biomass fuels coal alternatively from about 03,400 tons, the enterprise can reduce total cost of more than 600 million.
　　 3. Promote energy conservation and emission reduction. Boiler waste gas generated by biomass fuel has few pollutants, and boilers with low steam tonnage can achieve emission standards without supporting exhaust gas treatment facilities. Nine companies that have been piloted in our district can reduce sulfur dioxide emissions by 320 tons. The smoke emission is 160 tons. Biomass sulphur dioxide emissions are less than one-tenth of that of coal. Since biomass emits as much carbon dioxide as it absorbs during its combustion process, biomass combustion is considered from the perspective of recycling. The net emission of carbon dioxide in the air is zero; at the same time, the combustion of biomass reduces the methane generated by natural decay such as straw, which further reduces greenhouse gas emissions (it is generally considered that the greenhouse effect of methane gas is 21 times that of carbon dioxide ) ; In addition, the combustion of biomass energy as boiler fuel is also the most economical, and it is one of the most economically viable carbon dioxide emission reduction measures. After the project is promoted and applied, promoting the utilization of renewable energy and the development of circular economy in the whole region will produce significant social benefits.
Second, the problems in the promotion and application of biomass pellet fuel
Biomass pellet fuel is fully burned in the boiler, and the sulfur content is low, which has good development prospects. However, in the investigation, it is found that the technology still has problems in collection, storage and use. First, there is insufficient understanding of biomass fuels. At present, most people have insufficient understanding of the characteristics of biomass products with high energy, environmental protection and convenient use. Even many energy-using units simply do not know about biomass products, let alone knowing and applying them.
Second, there is no corresponding management method and technical specifications. Since there are no technical specifications and strict technical supervision and mandatory standards for biomass pellet fuel and its use of boilers, and the use of the unit does not have any preferential policies, the current development of the energy industry is relatively slow.
Third, there are corresponding technical problems. The fuel storage takes up a large space and affects the landscape environment. It is necessary to ensure the storage dryness and fire safety of the fuel. The need to ensure that the fuel is fully burned requires the corresponding technology.
Third, countermeasures and recommendations
　　 1. Strengthen publicity efforts. The development of biomass pellet fuel has good economic, social and environmental benefits. The promotion and application of biomass pellet fuel can not only protect the environment, mitigate climate change, but also promote the extension of the agricultural industry chain. Due to the relatively low labor cost in China, the development of biomass energy is more competitive than that of developed countries. The effective use of biomass energy is an energy utilization technology that is “contemporary and beneficial to future generations†and should be doing a good job in demonstration projects. On the basis of this, we will increase publicity and make biomass energy gradually enter people's lives.
　　 2. Develop management methods and technical specifications. Formulate management methods and technical specifications for biomass pellet fuels, establish strict technical standards for biomass fuels and boilers, strengthen technical supervision and market management, and create a good market environment for the promotion of biomass fuels. Units using biomass fuels must formulate relevant rules and regulations and strengthen boiler operation management. The furnace workers must be trained and certified to work in strict accordance with the regulations; the ash generated after biomass fuel combustion is agricultural fertilizers and industrial raw materials to ensure the use. Units are not free to throw, stack and discard, so as to avoid dust pollution and waste of resources; ash should be stored in bags and recycled by fuel suppliers for comprehensive utilization.
According to different methods of use, winches can be divided into four types: manual winches, electric winches, pneumatic winches, and hydraulic winches. At present, the largest marine hydraulic winch is 350T, and the weight of the equipment reaches 150T.
According to the reel form, it is divided into single reel and double reel.
According to the reel distribution, there are parallel double reels and front and rear double reels.
The main technical indicators of hydraulic winches include rated load, supporting load, rope speed, rope capacity, etc.
A winch is a light and small lifting device (see hoisting machinery) that uses a reel to wind a wire rope or chain to lift or tow heavy objects, also known as a hoist. The winch can be used alone or as a component of machinery such as lifting, road construction and mine hoisting. It is widely used because of its simple operation, large rope winding volume and convenient displacement. The winch is also known as the hoist. The product has high versatility, compact structure, small size, light weight, heavy lifting, and convenient transfer. It is widely used in construction, water conservancy projects, forestry, mines, docks, etc. for material lifting or flat towing, and can also be used as modern electronic control Supporting equipment for automatic operation line.
According to the power, the winch is divided into three categories: manual, electric and hydraulic.
The transmission mechanism of the handle rotation of the manual winch is equipped with a stopper (ratchet wheel and pawl), which can keep the heavy object in the required position. The manual winch used for assembling or lifting heavy objects should also be equipped with safety handles and brakes. Manual winches are generally used in places where the lifting capacity is small, the facilities are poor, or where there is no power supply.
Electric winches are widely used in places with heavy work and large traction requirements. The electric motor of the single-drum electric winch (pictured) drives the drum through the reducer, and a brake is installed between the electric motor and the input shaft of the reducer. In order to meet the needs of lifting, traction and rotation, there are also double-drum and multi-drum winches. Generally, a winch with a rated load lower than 10T can be designed as an electric winch.
The hydraulic winch is mainly a winch with a larger rated load. Generally, the winch from 10T to 5000T is designed as a hydraulic winch. The winch can be divided into:
Marine winches: Marine winches can be divided into drag winches, mooring winches, anchor winches, traction winches, etc.
Engineering winch: Mainly used in engineering, with functions such as hoisting and hoisting as the main function.
Mine winches: divided into hoisting winches, dispatching winches, shaft sinking winches, column return winches, rake mine winches, column return winches, etc.
Cable winch: mainly used when laying cables.
Lifting And Traction Winch,Pneumatic Winches,Hydraulic Winches,Electric Winches
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