Straw gasifier is a type of stove that we are currently concerned about. It has attracted the attention of many people. The number of units and individuals studied is more than one thousand. The trial participants are almost all over the country. However, after ten years of experiments and trials, their functions It is not satisfactory, but has been abandoned by users because of its insurmountable shortcomings. Although manufacturers have closed down and operators have closed, they have almost reached the point where they were completely wiped out. The reason is nothing more than the following reasons:
One. The use of process is cumbersome
1. The raw material of the straw gasifier must be crushed in advance before use. This requires the user to have a smashing device. The reality is that it is not possible to buy a crusher for gasifiers. If this is done, it will increase the cost of use and increase the labor intensity. This will inevitably affect the promotion of straw gasifiers.
2. The fuel in the gasifier must be dry enough to be used. Large amounts of water, gas, affecting the gas. Excessive moisture can even interrupt the gas production and produce a large amount of harmful fumes.
3.Before the furnace, the fuel must be compacted and compacted in the gasification barrel. There must be no gap left. Otherwise, the gasification is not good, and a large amount of smoke will be generated. In the burning process, a burning state will often be formed. If you don't come, you can't produce gas normally. If the lid is opened, the fumes in the gasification will run into the entire room and become unbearable.
4. The straw gasifier can only be filled once and used once. It cannot be fed continuously. Therefore, the gas production is limited, which limits the use value of the gasifier. For example, gas heating is absolutely impossible.
5. The firewood stove must use a blower or even an exhaust fan in its use. This not only concerns the cost of electricity, but also cannot be used in areas with frequent power outages or areas without electricity.
II. Serious pollution
1. The gasified gas from the fireweed is complex and must be filtered before it can be used. However, a large amount of exhaust gas, tar, waste water and many harmful gases are generated during the filtration process. These filters cannot be decomposed, remain in the environment for a long time, cause serious environmental pollution, affect human health, affect water sources, affect the normal use of land, and affect people's living environment. The user is exposed to harsh and harmful environments for a long time, which seriously affects the health of the user. Therefore, although many households purchased gasifiers, they are often no longer used after a few days. This is one of the main reasons.
Three. Straw gasifier single function
1. In general, the combustion gas after the firewood gasifier has been filtered, the combustion effect is indeed satisfactory, and the calorific value is also high, which can meet the needs of cooking and boiling water. However, it cannot meet the needs of heating and other functions. Because it is a one-time feeding, one-time use, burning time is short. If you use it again, you must repeat the previous program. Therefore, during the entire use process, the program is complicated and affects the use value.
Four. Comparison of gains and losses
In summary, as a straw gasifier has merit from the purpose of use, in terms of comprehensive evaluation, it is more than lost. It is obviously not cost-effective to trade in a bit of gas at the cost of complicated procedures and high environmental pollution. Therefore, in the long run, if the straw gasifier can not overcome the above shortcomings, I can be sure of the next conclusion, straw gasification furnace will be completely eliminated, and in exchange for high environmental costs for failure! Although there are still some customers, most of them are misled by the one-sided propaganda on television because they only say good things on TV and only perform well, which means that only the viewer sees the side of the gasification of the stove. No mention is made of the seriousness of pollution and the complexity of the procedure, so people are easily confused by the illusion. Even worse, simply using a hose to introduce liquefied gas into the stove gives people an illusion to confuse customers.
Therefore, when the user understands the entire process, it is almost impossible for someone to insist on using the gasifier for more than one week. It can be seen that if the gasifier is not completely reformed, it will never develop.
V. Way out
In fact, the straw gasifier is relatively desirable from the whole design principle, but its design concept has entered a dead end. Therefore, the primary consideration for design should be the full play of thermal energy and the comprehensive utilization of performance and the cracking of hazardous substances as the design goal. To this end, Jinan Dongfang Long Company passed more than four years of hard work, after summarizing the advantages and disadvantages of the gasifier, after thousands of designs and trial burn analysis of more than one hundred samples, experiments in different regions of the country The new concept has developed a biomass straw furnace with simple structure, low cost and easy processing. Essentially, this is a fully functional, fanless, biomass-based, semi-vaporised, combustion furnace that combines coal, straw, and all biomass fuels.
Its characteristics are:
1. All biomass fuels such as coal, straw, various gluten, cow dung, horse dung, twigs and biomass waste can be used without processing. In other words, the by-products of rural areas, pastoral areas and forest areas can be directly used without further processing. As long as you have such a stove, you can boil water, cook, bathe, heat, dry, and use no coal.
2. No fan. This stove can work normally without a fan during the entire use. Therefore, it can be used in areas where there is no power and frequent power outages. Applicable to the needs of the vast agricultural and pastoral areas in the north and south of China.
3. It does not pollute the environment. During the use of the stove, the household does not emit smoke, does not produce harmful gases, does not have coal tar, does not affect the user's environment, and is hygienic and burns thoroughly. It does not have any waste slag and waste gas that affects the environment.
4 full-featured. The stove can be used to cook water, as well as household, factory, farm, plastic greenhouse, drying room heating, from tens of square to several thousand square can be used. Moreover, it provides heating, air supply and hot air for the drying of various food processing plants. It can be said that this is a kind of full-function biomass boiler, which is highly efficient and energy-saving, has a wide range of uses, and has unlimited development and utilization value. Suitable for use in any agricultural and pastoral areas in China. It is also a good project that has low investment and high profits. As long as welding can be processed.
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