As a huge source of pollution, straw burning is China's "difficult" for many years, and it has become one of the most difficult and most difficult problems for governments at all levels. Through scientific and technological innovation, the comprehensive development and utilization of crop straw has become an urgent need of all walks of life.
Recently, at the seminar on the “Twelfth Five-Year†Circular Agriculture Development and Crop Straw Comprehensive Utilization Policy sponsored by the Research Institute of Resources and Environmental Policy of the Development Research Center of the State Council, two new technologies on straw processing applications have attracted the attention of experts. attention.
China is a large grain-producing country. In 2012, the total grain output was close to 590 million tons, and the associated crop straw was as high as 700 million tons. The comprehensive treatment of straw has become an important and difficult problem. For a long time, straw has been incinerated in rural areas. According to rough statistics, the straw burned in the country accounts for about 30% of the total reserves, which leads to serious air pollution. Although the State Council and the governments at all levels have set up an "incineration office" for this purpose, they are vigorously controlled every year, but the result is still "continuous burning." At the same time, straw as a resource has broad application prospects, and its comprehensive utilization has become a topic for government, enterprises and scientific and technological personnel.
At present, many developed countries have found a variety of uses for the comprehensive development and utilization of crop straw through scientific and technological innovation. In addition to the traditional smashing and smashing the field for organic fertilizer, there are also straw feed, straw vaporization, straw power generation, straw ethanol, straw building materials. Wait for new products.
China also has many places to actively explore, creatively using many a good way. For example, the use of straw to produce formaldehyde-free straw boards is widely used as high-grade furniture, high-grade packaging, high-grade building materials and other substrates; farmers are encouraged to expand the scale of breeding, so that straw becomes a roughage of cattle and sheep; using straw vaporization principle and technology to promote straw in rural areas Biogas project; using straw paper and so on.
Among them, straw papermaking has the highest utilization rate, but the pollution caused by traditional technology is also the most serious. At the seminar, the “stalked machine pulp†technology developed by Beijing Wuxing Tengda New Energy Technology Development Co., Ltd. broke through the world's problems. According to reports, the new technology, new technology and equipment of "stalking machine pulp" adopts atmospheric pressure low temperature dissociation and compound machine segmentation decomposition technology. Under normal pressure and low temperature, the molecular structure of straw is stable and will not be damaged, and will not Produce sewage efflux. The whole system production process only has internal circulation, no need for sewage treatment, and completely achieves “no emissionâ€. The straw is crushed, dusted, twisted, mixed, and then added to the compound machine in three stages. After the reaction, the hot mill dissociates and the slurry rate is as high as 85% (the current straw papermaking enterprise has the highest pulp yield of 40%), and the remaining about The 15% aqueous slurry mixture is precipitated in a sedimentation tank in the circulation system, and the precipitated water is recycled after being treated, and the precipitated product is a tail slurry.
Ningbo Kaijie Biotechnology Co., Ltd. introduced its successful cases in crop straw gasification and cogeneration. Based on self-developed catalytic cracking gasification technology, its equipment is mainly used in two aspects. First, it is solved in the construction of new countryside. The centralized supply station established by the villagers using clean energy, and the second is to solve the problem of combined heat and power.
Experts attending the meeting said that the development of straw recycling economy cannot be separated from the support of policies, and it cannot be separated from the promotion of leading enterprises, and it is also inseparable from the support of technological innovation. Therefore, the relevant government departments should further increase their support for the comprehensive utilization of straw, especially for enterprises in the field of financing and technology development, and at the same time evaluate and adjust various programs, technologies and projects for the comprehensive utilization of straw. The focus and direction of support for the three years after the 12th Five-Year Plan.
China Angle Marking Machine Suppliers
HYDRAULIC Stamping machine
Applicable Industry:Used for marking of angles and metal plates in the field of steel tower industry.
Product Feature
The equipment possesses independent hydraulic power system and electric controlling system.
The hydraulic system uses the electromagnetic valve to reverseMetal Stamping Machine,Hydraulic Stamping Machine,Stainless Steel Stamping Machine,Plate Stamping Machine
Shandong EN FIN CNC Machinery Co., Ltd , https://www.shuofangcn.com