Blue lasers include DPSS (diode-pumped solid-state) Laser and Diode Laser . The laser head comes with cooling and precise temperature control system, and power supply comes with overcurrent and overheating protection function. They are widely used in laser radar, interference measuring method and bioengineering etc.
Following wavelength are available for bule laser: 430 nm 440 nm 442 nm 445 nm 447 nm 450 nm 454 nm 457 nm 460 nm 462 nm 473 nm
480 nm 488 nm 491 nm
Blue Pulsed Laser : energy >50 μJ;
Blue High Power Laser: power >20 W;
Blue High Stability Laser: stability <0.1%;
Blue Low Noise Laser: noise <0.25%;
Blue Single Longitudinal Mode Laser: linewidth <0.00001 nm.
Blue Laser Blue Laser,Diode Blue Laser,Blue Solid Laser,Blue Burning Laser Changchun New Industries Optoelectronics Technology Co., Ltd. , https://www.lasersciences.com
1 Multiple factors contribute to the rapid growth of the dryer market
In recent years, China's dryer industry has produced a satisfactory report card. From 2013 to 2016, the dryer industry showed a trend of rapid development, and the amount of dryers entered a period of rapid growth. The average annual growth rate was over 20%. In particular, 2016 achieved a growth rate of 35%, far ahead of others. Agricultural machinery and equipment. Dryer users mainly focus on grain operators, cooperatives, family farms, large grain producers, and grain processing companies. Among them, grain operators are mainstream customers.
Since entering the "Thirteenth Five-Year Plan", China's dryers have developed rapidly and formed a "masculine deer" situation. What are the reasons behind this?
According to Changhong Hongyin, Deputy Director of the Anhui Agricultural Machinery Administration, “The drying machine in China has developed rapidly and is driven by both internal and external causes. The fundamental changes in China’s agricultural production and management methods have laid a good foundation for the development of dryer technology. Solid foundations: The economic development, the reserve of drying technology, the improvement of equipment manufacturing capabilities, and policy support have added to the excellent situation in the dryer market today.
Mechanical drying is an important part of the full mechanization of food production. Zhang Lailin, a professor at Henan University of Technology, believes that due to the current full-scale and comprehensive development of agricultural mechanization, the demand for agricultural machinery begins to extend to the post-natal period, and the dryer naturally becomes a hot spot for agricultural machinery. Mechanical drying exhibits unprecedented opportunities for development. The market has a huge demand for drying equipment. Zoomlion, Zhongnong agricultural machinery, and China's one dragged many well-known companies into the mechanical drying industry.
Dryer development cannot be separated from policy support. It is reported that from 2011 onwards, grain dryers have been included in the National Agricultural Machinery Purchase Subsidy Catalogue. Based on the national financial subsidies of 30%, some provinces and cities have introduced policies and added subsidies for dryers. In 2015, the maximum amount of subsidies for grain dryers in the National Agricultural Machinery Purchase Subsidy Catalog is 120,000 yuan. It is expected that in the next five years, the grain dryer will still be the key category for national and local agricultural machinery purchase subsidies.
2 Technical support fatigue Product low-level homogeneous competition
Although the dryer industry has developed rapidly, with the increase in the demand for high-quality grain and oil, and the upgrading of environmental protection concepts, the existing drying technology can no longer meet the needs of production. Although the dryers developed by various domestic companies have their own characteristics, subject to the subjective understanding and objective conditions, many dryers generally have certain problems in design, manufacturing and practical application.
First of all, it is expressed in some key technical support. The level of technology directly affects the quality and effectiveness of the dryer. “The low thermal efficiency of the whole machine is a deficiency of the dryer in our country. The peripheral wall of the equipment lacks effective thermal insulation facilities, and the heat energy is lost greatly. Combining with the low efficiency of combustion and heat exchange of the hot stove, the average thermal efficiency of the whole machine is only about 55%.†Zhang Laiming analysis, Most manufacturers lack research and development capabilities, and the scale, standardization, and standardization of products are low. Most of the equipment is improved through imitation, resulting in the similarity of models, and the market is still in a state of low price competition with homogeneity; at the same time, the degree of automation of dryers is low; Although there are many dryer manufacturers in the country, the product structure is varied, the structure is irrational, the appearance is extensive, and the processing accuracy is low; the moisture control and equipment operation of the dryer are still mainly relying on experience and manual operation. Some equipment is equipped with Control system, but the operator is not professional, resulting in dry food moisture, temperature can not be accurately controlled; In addition, the fuel heat source is mainly to coal-based, while most Western developed countries to fuel and natural gas as a heat source.
Second, drying theory research is not enough. Guo Shanhui, executive deputy general manager of COFCO Engineering Equipment (Wuxi) Co., Ltd., analyzed the current status of the dryer industry in China: there are few basic theoretical studies. Although universities and research institutes in recent years have all been doing dry research work, the input of manpower and material resources is far from enough. Compared with Canada, Japan, Denmark and other countries, there is still a big gap. The experimental conditions are severely inadequate. So far, neither the manufacturer nor the scientific research unit has a perfect experimental base, leading to great blindness in the design of the dryer. Not enough knowledge of it. At present, no enterprise has used the dryer as a process, resulting in a seamless connection between the drying equipment and other equipment. In addition, he believes that "the current standards for drying equipment and related industry technologies are seriously out of line with the existing research and development. There are many existing standards, but there is no effective promotion."
Third, the market's disorderly competition and unfair competition not only did not bring benefits to the users, but also did not bring benefits to the company. “In recent years, the dryer industry has been booming, but the strange image of low-level manufacturing of dryer manufacturers has become more and more intense.†Wu Jun, general manager of Yamamoto Machinery (Suzhou) Co., Ltd. explained that the entry threshold for dryer manufacturers was low and they were assembled. Products are easily recognized and promoted by the government's functional departments. Once "promoted", they become legalized to promote "problem products" and "home-workshop-style" small businesses, resulting in price competition in the disorderly market competition. Intensified.
3We must step on the path of healthy development
In the future, the development trend of the dryer will be unstoppable, but the road will be twisted. Experts agreed that at present, the development of the dryer industry in China is still in a non-standard development stage, the front road is full of pressure and challenges, and it is necessary to move towards a healthy and healthy development track. There is still a long way to go.
So now, how can the dryer industry achieve healthy development? The experts also put forward their suggestions.
The dryer market should be based on the maintenance of the interests of farmers and based on sustainable development. Liu Xiaowei, director of the Production Management Division of the Agricultural Mechanization Management Department of the Ministry of Agriculture, suggested that “As an important link in the mechanization of agricultural production, mechanized drying is no longer optional. The drying industry must focus on scientific layout and cannot allow it to develop freely. Enterprises must pay attention to product quality, can not exaggerate publicity, deceive consumers, and should pay attention to product innovation, expand the field of drying from food crops to other areas.In addition, the agricultural machinery enterprises should make a good exploration of the service mechanism, while selling products. You can sell the plan to the farmers. When designing the package, you must consider the 'green' plan and meet the current environmental protection needs."
Hu Xuejun, chairman of the drying equipment branch of the China Agricultural Machinery Industry Association, believes that it is necessary to speed up the development of the dryer industry standard and set a threshold for access; solve the problem of soil and electricity consumption in grain drying centers; and continue to increase the purchase of grain dryers. Subsidies, central and local governments should give more support to the dryer industry in terms of policies, especially to increase support for production companies and research institutes in technology research and development, and product innovation projects; encourage and guide agricultural financial institutions throughout the country to issue as soon as possible. Improving farmer loan business suitable for farmers' needs, solving the problem of financial difficulties for farmers when purchasing, encouraging business entities to purchase advanced and applicable grain drying machinery, etc.; dryer manufacturers should actively respond to national environmental protection requirements and develop environmental protection in a targeted manner. Products to meet market demand.
“After the end of last year, the China Agricultural Machinery Industry Association conducted a survey of some dryer companies. Everyone hopes to standardize industry standards and improve product quality. Enterprises must also use quality and core technologies to build their competitiveness, so that the dryer industry can have a future. The relevant requirements of the old standard are backward and need to be replaced by new standards.†Wu Jun suggested that the national moisture testing standards should be accelerated and identified. The identification of dryers should be changed from pre-testing to post-examination and gradually changing from professional inspection to user. Participation in testing should simplify the testing methods, increase penalties, and increase the channels of communication among governments, enterprises, and users.
In the heat of the dryer, you need to go to virtual fire
In the first half of 2017, the dryer market had a good performance when the national agricultural machinery market fell to the “low†position. According to statistics, as of the end of June this year, a total of 98,600 dryers were sold nationwide, an increase of 37.33% year-on-year. At the same time, more and more companies are beginning to get involved in the dryer area. Industry insiders predict that the next 3 to 5 years will be the rapid growth of dryer companies. However, at present, the quality of dryers in China is uneven, and there is a lack of uniform standards in the development of the industry, which restricts the pace of the industry's advancement into the mid-to-high end market. Recently, at the first national grain drying equipment technology and industry development summit held in Wuhu City, Anhui Province, related experts discussed the status quo of dryer development.