PN40 Flange is a rating of nominal pressure, full nominal pressure of PN have PN6 PN10 PN16 PN25 PN40 for Hyupshin Flange Supplying. Norms of DIN EN1092-1 BS4504 GOST33259-2015 and NFE29203 are have nominal pressure rating, PN40 flanges are high pressure rating and used in high pressure piping, PN40 flange thickness is bigger than PN6 PN10 PN16 PN25. PN40 Flange pn16 steel flanges manufacturer, DIN 2527 2635 PN40 flanges, EN1092-1 PN40 flanges, BS4504 PN40 Flanges, gost33259 pn40 flanges Jinan Hyupshin Flanges Co., Ltd , https://www.iflange.com
The tunnel dryer consists of two parts: the conveyor system and the drying furnace. The conveyor system is a small car whose speed can be adjusted to increase the mobility during the drying process. At the same time, the loading of materials in the trolley enables full utilization of the dry space. Of course, the track of the trolley is equipped with a chain drive on both sides to avoid the phenomenon of deviation during transportation.
The drying furnace section is usually divided into several temperature sections, and segmented heating is implemented, and each section is controlled by an independent PID temperature, which makes the equipment downsized, can ensure uniform temperature in a certain space, and avoid heat generation due to excessive space. Uneven distribution. Because each temperature control is independently adjusted, the equipment can be continuously and continuously baked to improve the production efficiency of the product.
During baking, the windshield on the food material trolley of the tunnel dryer rises, the hot air passes vertically through the material layer, and is reversed multiple times, so that the material and the drying medium in the entire drying interval are horizontally and vertically changed. This process recycles the heat generated by steam boilers and hot blast stoves (burning coal, fuel, gas) to improve thermal efficiency. In addition, the exhaust gas can also realize the fantasy. By installing the through-flow drying equipment in parallel with the two tunnels, the upper part is equipped with an axial flow fan, so that the hot air enters a certain amount of outside air while passing through the two rows of tunnel material layers in the section. A certain amount of exhaust gas is discharged to perform partial exhaust gas recirculation.
The tunnel dryer has strong adaptability. As we have said above, the speed of the conveyor system can be adjusted, and the temperature of the drying furnace is independently controlled by the temperature control system, which means that the humidity and temperature can be controlled. According to the characteristics of the material, the tunnel dryer can quickly change the drying process and has wider adaptability. At the same time, if the dried material is fixed, the equipment can be designed into a fully automatic or semi-automatic mode to reduce the difference in material drying caused by insufficient worker experience. For different material characteristics, the baking tray on the trolley can also be replaced, such as plastic mesh tray, wood strip, wire mesh, bamboo net, etc.
Of course, length and volume are not the only features of tunnel drying equipment. For the drying equipment, it is a device that converts the energy generated by the steam boiler into heat energy, thereby evaporating the moisture of the food. Most of the current tunnel dryers are made of stainless steel, which has strong thermal insulation properties, which can prevent heat from overflowing and save energy. This is also an improvement in the working environment of the drying section staff.
The tunnel furnace can be adjusted with many components. During daily use, it is also necessary to check whether the various components are in normal operation. For example, the fan, current, thermostat, heating pipe, delay device and other components will cause drying effect. Great discount. It can be seen that even if the giants are like tunnel drying equipment, they need to pay attention to the details in the production, so as to avoid the effect of the equipment being greatly reduced due to the details of the errors.
In a number of drying equipment, to say that a large amount of materials are handled, the author will first think of the drying equipment in the form of a tunnel. The length of the tunnel drying equipment is also 6 meters long in length, and can even be customized to 60. Up to 80 meters, it is absolutely eye-catching in terms of appearance. Because of this large volume, the tunnel drying equipment can adapt to various shapes and the drying of a large number of foods.