Chinese dried Reuters since this century, China's timber supply, there have been significant structural changes, which were as follows: First, the proportion of industrial fast-growing materials has gradually increased; The second is the rapid increase in the proportion of imported materials. On the other hand, as a large consumer of energy in the wood processing industry, wood drying accounts for 40-70% of the energy consumption of wood processing, while the dry heat efficiency is generally low, usually only between 30-40%; in addition, the drying process The pollution caused is often an important source of environmental pollution in China. Taking a steam drying plant with an annual drying capacity of 10,000 cubic meters as an example, the harmful substances discharged per hour are approximately: 40 kg of soot, 1900 cubic meters of carbon dioxide, and 45 parts of sulfur dioxide. Cubic meters, as well as a small amount of nitrogen oxides, are the major contributors to the atmospheric greenhouse effect, acid rain and ozone damage. Since the contribution of energy to environmental protection can reach 70-80%, the energy saving and environmental protection issues of drying technology are particularly important. Therefore, the innovative development of the wood drying technology in the future has basically the following three aspects: The first is to strengthen theoretical innovations, such as theoretical breakthroughs in basic research on wood moisture transport mechanisms, three-dimensional spatial flow in wood, and wood stress release mechanisms. The second is to focus on the characteristics of China's timber resources, pay attention to the research of new technologies and technological integration and innovation. For example, for the continuous expansion of China's short-cycle artificial forest timber, it is necessary to further study the combination drying technology of wood drying and wood modification and improvement. The third is to promote green and dry, further energy-saving emission reduction, such as the promotion of biomass energy use, and further promote solar drying technology.
Introduction of coal jet machine:
Coal pulverizer is also called coal pulverizer. It is a new type of coal saving and coal burning equipment, which can save coal consumption greatly and eliminate the waste of coal powder.
As a new type of coal saving and coal burning equipment, coal injection machine is mainly used for drying, annealing, tempering boiler, steam and so on. The suitable site of the first handsome coal injection machine, such as: Ma steel factory, foundry plant, rolling mill, steel mill, cement plant, boiler plant, etc., can replace the heat energy equipment of fuel, gas and electric power electric heating, thus saving 40-50% energy. The pulverized coal injection machine can greatly reduce the labor intensity of the personnel, reduce the cost and improve the economic benefits.
The coal injection machine has the characteristics of easy ignition, easy control of furnace temperature and stable product quality. The machine has the advantages of simple structure, compact structure, convenient installation and maintenance, reduced labor intensity and reduced energy consumption. First handsome coal spray machine has high thermal efficiency, increase production and energy saving, coal saving 40-50%, no exhaust gas, and production is not affected by the rain weather, it has brought more significant benefits to the factory.
Principle of coal jet machine:
First, the raw coal enters the grinding area of the grinding roller and the millstone, and is grinded into pulverized coal under the roller mill of the grinding roller. The loading force of the grinding roller is an important parameter for the safety and economic operation of the pulverizer. With the increase of the loading force of the roller, the grinding pressure of the roller mill increases, the pulverized coal is finer, the pulverized coal output is increased, the coal particle characteristic coefficient n becomes larger and the consumption of the pulverized coal is reduced, but the equipment vibration of the mill is aggravated, the wear is too fast and the service life of the grinding parts is reduced. The Shuai pulverized coal injection machine has the characteristics of centralized supply, multistage crushing and transportation. It can save 50% coal and meet the requirements of environmental protection. It is a necessary product to reduce the cost and reduce the pollution index. The raw coal is transformed into a very fine powder after a series of comminution processes, and is transported to the furnace by the pressure of the 150 mm water column to achieve the goal of complete combustion. Coal Injection Machine Series,Pulverized Coal Burner,Pulverized Coal Firing Plant,Pulverized Coal Burner Equipment Botou Youjian Environmental Protection Equipment Co. LTD. , http://www.btdustmachine.com