Spray drying tower is a common equipment for rapid and continuous drying of wet materials, which has the advantages of continuous production, fast drying speed, convenient operation and control, suitable for large-scale production, etc., and is widely used in biological pesticides, medicine, food microorganisms and other industries. After the spray dryer is used for a long time, the inner wall of the dryer is easy to adhere to the particles obtained during the drying process, and the particles need to be removed regularly to avoid affecting the drying of other types of substances and the purity of other substances.
The existing drying tower cleaning mode adopts manual cleaning, and the cleaning efficiency is low, and the labor intensity is large, so that the stubborn debris inside the tower body can not be removed in time, so that the tower body can not be cleaned completely, the next drying is affected, and even the dry object can produce sundries; Therefore, there is a need for a device that can complete the dryer cleaning quickly and with high quality.
The high-pressure water jet cleaning technology uses a high-pressure pump to pump out high-pressure water, and reaches the nozzle through a certain pipeline, and then converts the high-pressure and low-flow water into a high-pressure and high-flow jet, and then the jet continuously acts on the surface to be cleaned with its high impact kinetic energy, so that the scale falls off, and finally realizes the cleaning purpose. The high-pressure water jet cleaning technology has the characteristics of green environmental protection, resource saving, not limited by criticism, fast and high-quality cleaning ability, and the use of clean water as the cleaning medium, without adding any chemicals, will not cause pollution to the environment, therefore, the cleaning technology has been quickly promoted and applied in the drying tower cleaning.
The automatic cleaning system of high-pressure water spray drying tower is composed of high-pressure water cleaning system, sewage treatment system, drying system and hoisting positioning system. The hoisting positioning system is composed of a base, a column and a horizontal arm. The cleaning system is composed of mechanical structure, high-pressure water pumping station, hydraulic drive system and computer control system, and the system integrates three-dimensional high-pressure water cleaning technology, with relevant wastewater treatment and control systems, which can replace manual cleaning operations in the drying tower.
Cleaning is, with a special three-dimensional can washer telescopic mechanism installed on the entrance of the spray drying tower, the telescopic rod extends into the tower, the telescopic mechanism can be controlled by manual, electric, hydraulic and other controls, and the telescopic rod expands and contracts in the tower and moves along the direction around the inner wall. When the three-dimensional can washer rotates horizontally, the rotational moment formed by the water jet drives the nozzle to rotate in the vertical plane. Due to the combined motion of the three-dimensional rotating nozzle and telescopic rod, the high-pressure water jet can cover any position in the spray dryer to complete the cleaning.
1. The PLC control system is used to flexibly adjust the cleaning pressure, flow rate and time;
2. Automatic cleaning mode reduces labor input, improves cleaning efficiency and quality, and reduces input costs;
3. Three-dimensional cleaning and cleaning technology realizes 360° cleaning of the inside of the drying tower without dead angles and improves the cleaning quality;
4. Closed cleaning mode to avoid the impact of exhaust gas volatilization and wastewater splashing on the surrounding environment;
5. The cleaned wastewater is separated and recycled to reduce the waste of water resources;
6. The drying system after cleaning can quickly dry the inside to make the inside dry and clean;
7. The cleaning speed is several times or even more than ten times that of the traditional method;