Fan is a kind of driven fluid machinery, which depends on the input mechanical energy to improve the gas pressure and send gas side by side. Fan is China's customary abbreviation for gas compression and transmission machinery. Generally speaking, fan includes fan, blower and wind turbine. Ventilation Fan ZIBO SUNTAE GLOBAL IMPORT & EXPORT CO.,LTD , https://www.qinengfan.com
When wood is placed in a certain environment, the moisture content tends to a balance after a long enough period of time, which is called the equilibrium moisture content (EMC) of the environment. When the moisture content of the wood is higher than the equilibrium moisture content of the environment, the wood will shrink moisture and vice versa. For example, the annual average water content in Guangzhou was 15.1%, compared with 11.4% in Beijing. Drying to 11% of the wood used in Beijing is suitable, and it can be used in Guangzhou to absorb moisture and expand and deform. Therefore, the drying of wood should be appropriate, and it should not be as dry as possible.
Is it okay to import equipment?
Since the reform and opening up, wood drying equipment from Germany, Italy, Singapore, Taiwan and other countries and regions have landed in mainland China, especially in the economically developed coastal areas, which has greatly promoted the domestic wood drying market. It must be acknowledged that due to the advantages of basic industries, certain parts of imported drying equipment such as high-temperature motors, electric actuators, and equipment are manufactured at higher levels than domestic equipment. However, the industry of wood drying is, after all, narrower. The history of developed countries in this area is not too long, and the attention of input is also insufficient. As a result, the overall level of equipment imported into China is not high and varies greatly, especially automatic control systems. The function is simple and does not adapt to the domestic use of the environment, coupled with after-sales service can not keep up with, there have been many examples of domestic control system was replaced. At present, the overall level of domestic wood drying equipment is not low, and some have already been exported. Considering factors such as performance, price and service, imported equipment does not have an advantage.
What do you think of price and service?
Wood drying involves many technical aspects. High-quality drying requires users to have a wide range of knowledge. Providing users with technical training, technical advice, and thoughtful after-sales service is the basic task of a wood drying equipment manufacturing company. At present, there are many "drying plant", there is no support for the basic theory of wood drying, do not understand the wood drying process, and even the basic air circulation design does not understand, take it for granted, shoddy, blindly using incredible "low prices "Inducing customers. This kind of "equipment" has become a pity of the "chicken ribs", some of which are of low quality and cause fires. Good equipment and good service must be supported at reasonable prices. Too low prices are often at the cost of sloppy and irresponsible. Therefore, when selecting equipment, users should pay more attention to the credibility and service capabilities of production companies while considering prices.
Do not know, I understand
Users often only consider how to save equipment investment when choosing equipment. Little do they know that investment in equipment is only a piece of cake compared to the value of wood being processed. With an annual output of 2000m3, the equipment investment with good performance generally needs 200,000 yuan, but the value of 2000m3 wood sometimes reaches as high as 10 million yuan. With good equipment and reasonable automatic control, it is an indisputable fact that the yield rate of dry wood is 5% higher than that of hand-operated simple equipment. This 5% increase in production rate means a saving of 500,000 yuan per year. From a point of view, spending 200,000 yuan on equipment with good performance is much more cost-effective than spending 100,000 yuan on purchasing simple equipment.
Fans are widely used for ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, ventilation and induced draft of boilers and industrial furnaces, cooling and ventilation of air conditioning equipment and household electrical equipment, drying and selection of grain, air source of wind tunnel and air cushion vessel, etc
Dry wood, the more dry the better?
March 26, 2021