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Straw as a large number of China, and more difficult to deal with a kind of agricultural waste, has brought a lot of trouble to our lives, directly burned, polluted the environment, ignored, too much, covers too much area. How to effectively dispose of this straw has become a problem.
In recent years, it has been advocated to make straw into fuel pellets with a fuel pellet machine. After straw is made into fuel pellets, it can replace coal, and the straw is made into fuel pellets, which can not only reduce the consumption of straw well, but also increase the income of farmers. So, can straw really replace coal?
Let's compare coal and straw fuel to find out their respective advantages and disadvantages.
Coal: The burning value of coal.
Very high, but it is not able to burn completely, and it produces a lot of cinders. There is a lot of residual heat loss. And coal is a non-renewable resource.
When you run out, it's gone. This is not a resource crisis for us.
Straw pellets: In contrast, the combustion value of straw pellets is relatively low, however, straw pellets can be burned very thoroughly, with high combustion efficiency and very little residual carbon.
Although the combustion value of coal is high, it is due to its large ash content and the release of carbon dioxide when burned.
and sulfur dioxide, which seriously affects our environment. The use of coal has already begun to be banned.
Straw is a molded clean fuel that is reprocessed from agricultural and forestry wastes, which has no pollution and no impact on the environment when burning, and more importantly, it can also allow farmers to earn more.
Straw fuel can completely replace coal, although straw is slightly inferior to coal, but other places are better than coal. Straw fuel is a type of fuel pellets, which will become the main resource to replace coal.
If you want to make straw fuel, you need to use a fuel pellet machine, if you want to make straw fuel, but you don't understand the fuel pellet machine, you can leave a message below to the agricultural and animal husbandry equipment assistant, and the agricultural and animal husbandry equipment assistant will explain it to you in detail.
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First of all, one advantage is that it is more environmentally friendly, because the fuel made from straw can be turned into treasure and fully protect the environment; Secondly, the raw materials are more abundant and can make a lot of fuel, because there is more straw and can be used effectively.
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The main advantage of straw as fuel is that the pollutants produced by straw combustion are less than coal, which is conducive to improving the environment, and straw is relatively cheap and easy to obtain, saving costs.
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Straw fuel is a green and environmentally friendly renewable energy, and compared with coal, straw can achieve no pollution, zero emission, and environmental protection. And the combustion efficiency is high, easy to burn out, and the amount of residual carbon is very small. It does not produce harmful gases such as sulfur dioxide and carbon pentoxide when burned, and has environmental benefits.
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Straw burning produces carbon dioxide, which can be used as fertilizer, and if coal is not burned sufficiently, carbon monoxide is generated, which is a toxic gas.
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The cost is much lower than coal mining! The pollution index generated after combustion is also low!
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On the burning time is naturally ordinary coal, the density of straw coal is small, the volatile content is high, and the calorific value is low, but you ultimately look at how much heat they have, we are specialized in making biological cherry finch solid fuel, we know this very well, generally 5000 kcal coal and peanut shell briquetting fuel comparison, 1: tons, if it is wheat straw, corn stalk and other straw fuel, it is or higher, but whether you are a hot water boiler or a steam boiler, When using peanut shell briquetting fuel, the temperature or air pressure rises faster than the use of coal, which we have verified with many customers, hehe, I hope it will help you, if you have any questions, welcome to ask!
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The disadvantages of straw coal are as follows.
Slightly lower calorific value: The calorific value of straw briquettes is not as high as that of high-quality coal, which is certain, because coal evolves over hundreds of millions of years through physical and chemical processes.
The briquetting is formed after crushing the biomass raw materials, and the calorific value released per unit time is increased by 1000 kcal, so the briquetting of straw is 3500 kcal - 3800 kcal, and the calorific value of briquetting with high lignin content is 4500 kcal - 5500 kcal.
The calorific value of high-quality coal is 7000 kcal, although the lowest calorific value of straw is 3500 kcal-3800 kcal, which is slightly lower, but the general boiler can be used, and if it is a transformed biomass boiler, it can be burned completely.
High volatile content. Volatile matter is a relatively high calorific value released in a short period of time. As the saying goes, the burning time is slightly shorter. Generally, the volatile content of coal is about 30, but this straw coal is more than 50.
If you boil a pot of water at the same time, you can boil a pot of water in 10 minutes with coal, but it only takes 8 minutes with this kind of straw coal. However, it is slightly more expensive to use straw coal than coal. Briquettes like straw are compared to coal
1, like the bark of a cotton stalk sawdust, is: 1.
Straw coal refers to the artificial method of making waste plants (straw, weeds, sawdust, etc.) quickly turn into coal that takes millions or even hundreds of millions of years to form in nature, which has the characteristics of flammability, less ash and low cost.
Straw coal stalls can replace coal, oil, etc. as energy sources, which can be used for factory boilers, power plant energy, and education heating. The straw can also be pressed into blocks and used as feed for ruminants, with good palatability and easy digestion.
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Relevant studies by the International Energy Agency show that straw is a good clean and renewable energy source, and its average sulfur content is only 3.8 parts per thousand, while the average sulfur content of coal is more than 10 parts per thousand. It has been determined that the calorific value of straw is about 15000kj kg, which is equivalent to 50% of standard coal and 70% of civil coal (raw coal is converted into standard coal coefficient.
Straw coal can replace coal, oil, etc. as the best energy, which can be used for factory boilers, power plant energy, education heating, and can also be pressed into blocks as feed for ruminants, with good palatability and easy digestion.
Straw coal is a kind of stick solid pellet fuel that can be burned directly by pressing crop straw or crushed waste biomass, the pellet fuel after briquetting is large, small in size, easy to store and transport, is a high-quality solid fuel, its calorific value can reach 3200-4500 kcal, with flammability, less ash, low cost and other characteristics, can replace firewood, raw coal and other fuels, widely used in heating, living stoves, boilers, biomass power plants, etc.
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In our country, there is probably a thick () straw used as fuel.
Digging the answer to the nucleus: c
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Hello dear! The disadvantages of straw coal are as follows: straw coal is divided into two kinds, one is briquetting, one is carbonized, the former has a low calorific value, the latter is high, each has its own advantages and disadvantages, the first technology is relatively simple, the second technology is quite complex, but in the long run, the second is more like coal, smokeless and tasteless, and it is a real clean fuel.
But the second kind can really do not much like raw coal, pay attention to distinguish. If my answer is helpful to you, please give a thumbs up (comment on Changqueshi in the lower left corner), look forward to your like, your efforts are very important to me, and your support is also the driving force for my progress. If you feel that my answer is still satisfactory, you can click on my avatar for one-on-one consultation.
Finally, I wish you good health and a good mood!
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About 50%-60% of straw in our country is used as fuel.
The ecological benefits of straw returning to the field are gradually emerging. In 2021, the amount of straw returned to the field will reach 400 million tons, of which corn, rice, and wheat straw will be returned to the field with 100 million tons, 100 million tons, and 100 million tons, respectively, accounting for the amount that can be collected7%。
The efficiency of straw leaving the field has been continuously improved. In 2021, the utilization rate of straw off the field will reach. The utilization of feed reached 100 million tons, and the utilization rate of feed reached 18%, an increase of one percentage point compared with 2018; The amount of fuel utilization is stable and the seepage is set at more than 60 million tons; The utilization of base materials and raw materials reached 12.08 million tons.
Accelerate breakthroughs in the market-oriented utilization of straw. In 2021, there will be 10,000 straw utilization market entities in the country, an increase of 7,747 from 2018, of which 1,718 will have an annual utilization of more than 10,000 tons, an increase of 268 from 2018.
The main body of feed utilization accounted for the highest proportion, reaching the proportion of fertilizer, fuel, base material, and raw material utilization respectively6%。
In the next step, the Ministry of Agriculture and Rural Affairs will continue to adhere to the direction of "agriculture-based and diversified utilization", guide all localities to strengthen the top-level design based on the local resource endowment, farming characteristics and industrial status, and make overall plans to do a good job in the scientific return of straw to the field and the efficient utilization of the field, so as to promote the comprehensive utilization of straw to a new level.
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