Flash dryer is a new type of continuous drying equipment integrating drying, crushing and screening. It is very suitable for the drying of some cake-like, paste-like and slime-like materials. It is mainly composed of a host and a screw feeder. Specifically, it is composed of a stirring and crushing system, a drying supervisor, a heater, a feeder, a cyclone separator, a classifier, a bag filter and a fan, and they are all Separately driven by a motor. The flash drying system, in addition to the host, must also have three parts: the heating part, the air supply part, and the product collection. Usually the heating of these three parts is basically used coal, fuel or electricity; and the gas supply system is generally composed of the centrifugal fan and its piping and valves and other parts; that of its finished products The collection section consists of a cyclone separator and a bag filter. These are the basic configuration of the flash dryer system. For some special materials, the system must be adjusted to meet the requirements for drying different materials. 1. Firstly, the inner circumferential gas velocity of the drying chamber is high, and the material residence time is short, so that it can effectively prevent the sticking of the material and the deterioration of the heat-sensitive material, and can be dried into a uniform powdery product at one time. It also eliminates crushing and screening processes. 2. The special setting of the bottom of the dryer: cooling device and air pressure sealing device, so that the phenomenon of qualitative change of material in the bottom high temperature zone can be avoided. 3, the drying chamber is equipped with a classification ring and a cyclone, and its material fineness and final moisture can also be adjusted. Because of its special air separation device, not only can reduce the resistance of the equipment, but also can effectively improve the drying uniformity of the material. 4. The flash dryer can also effectively control the final moisture and fineness, and we can ensure that the moisture content and fineness of the product are uniform by adjusting the feeding, hot air temperature and classifier. Having said the above several advantages, usually we all know that any equipment or something like a machine, there are advantages at the same time they also have shortcomings, the following is what the disadvantage of the next flash dryer. Its disadvantages are as follows: 1, first of all, according to the nature of its work, it belongs to the airflow type of drying, so its energy consumption is very high; 2. Second, because the material in the dryer is moving at a high speed, the wear of the equipment will be very serious, which will also reduce the life of the equipment. 3. In the process of dust removal in the subsequent period, the equipment investment for the previous period of the fan is also very large. The flash dryer has a high dry strength. The main reason for this is that its physical properties are subject to microcentrifugation, shearing, collisions, and friction that cause it to be micronized, and that it will be in a highly dispersed state. Therefore, the relative speed between gas and solid will be greater, thus strengthening the transmission. Quality and heat transfer. The general flash dryer has a barrel diameter of 0.2 to 1.6 meters and evaporates water from 10 kg to 2000 kg per hour. With its unique structure and advanced settings, it fully functions as stirring, grading, crushing, and drying to achieve high speed and efficiency. The equipment consists of feeders, stirrers, blowers, steam heaters, dryers, classifiers and other components. The equipment has a variety of feeding devices to choose from, the feeding is continuous and stable, no bridge phenomenon occurs in the middle; a special cooling device is installed at the bottom of the dryer to avoid deterioration of the material in the bottom high temperature zone; special air sealing device and bearing cooling The device reduces the resistance of the equipment and effectively provides the processing air volume of the dryer. The drying chamber is equipped with a grading ring and a swirling sheet to adjust the fineness and final moisture of the material. The gas velocity in the drying chamber is high and the material residence time is short. Prevent material sticking and heat-sensitive materials from deteriorating. Compared with other equipment, this equipment can effectively increase the proportion of materials. The device is widely used for drying foods such as pastes, filter cakes and heat-sensitive materials. Sunlight Series-Inverter Heat Pump heating cooling system,new energy,nulite new energy heat pump Guangdong New Energy Technology Development Co., Ltd. , https://www.newenergy-e.com
October 01, 2021