Drying stability heat-sensitive materials 2.4 special materials, oxygen-sensitive materials and solvent-containing combustible material drying conditions require a higher drying conditions will result in unreasonable dry material degradation and deterioration. American Bepex company [7] designed stationary fluidized bed dryer is a relatively new heat-sensitive material suitable for oxygen sensitive materials and flammable materials containing solvents dry fluidized drying equipment. This fluidized bed dryer having a plurality of regions, can be heated and cooled in the same device, each region can be temperature, dew point and flow velocity independent control, fluid bed dryers, by adjusting each cofferdam height of the area, a fluidized bed dryer performance, the material in the dryer residence time can vary up to four times. As a result of low vapor pressure, heat-sensitive material can be carried out at a temperature below the boiling point drying, indirect heat transfer surfaces and added, fluidized bed dryer efficiency and drying capacity. In addition, the device uses an inert gas can be recovered in a closed circulating fluidized bed system that can handle oxygen sensitive material and solvent containing flammable materials. Fluidized bed dryer of the structure and process equipment works in foreign countries, technical schools sludge incineration lot, fluidized bed dryer structure, but the main applications are mainly two ways: First, the fluidized bed drying technology, two , paddle drying technology process using fluidized bed dryer of the fluidized bed dryer. Fluidized bed dryer basically consists of three parts from bottom to top: (1) bellows: for different regions through the gas distribution plate circulating fluidized-bed gas is distributed to the device. (2) intermediate section: through a heat exchanger which transfers heat to the sludge, and make drying. (3) suction cups: the flow of dry particles from the circulating gas, while circulating the gas with water and evaporated to leave the fine sludge drying machine. Fluidized bed drying machine works shown in Figure 1. Fluidized bed dryer performance | further dried (certified) | fluid bed dryer supplied by Changzhou Drying Equipment Co., Ltd step. Drying Equipment Co. Changzhou step (www.yibu.com) is a leader in Changzhou, Jiangsu, drying equipment, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In step drying leadership with the staff warmly welcome all inquiries negotiations to create a better future for the drying step.