Mechanical double-effect negative-pressure drying device

Abstract

The invention discloses a mechanical double-effect negative-pressure drying device and relates to the technical field of drying devices. Particularly, the mechanical double-effect negative-pressure drying device comprises a first-effect steam heating pipe system and a second-effect steam heating pipe system, wherein a first-effect steam safety plug is mounted on one side of the first-effect steamheating pipe system; a first-effect steam conveying pipe is connected with both the first-effect steam heating pipe system and the first-effect steam safety plug; a transferring pipe is connected ontothe first-effect steam conveying pipe; a steam outlet pipe is mounted at the tail end of the first-effect steam conveying pipe; a steam inlet pipe is connected with the end part of the transferring pipe; a steam inlet guiding pipe is arranged at the tail end of the steam inlet pipe and connected with the first-effect steam heating pipe system; and the second-effect steam heating pipe system is mounted below the first-effect steam heating pipe system. According to the mechanical double-effect negative-pressure drying device, a negative-pressure draining method is adopted, steam is forced to beconveyed in a looped manner, the loss of steam energy is greatly reduced, the heat value of the steam energy is sufficiently utilized, equipment and a reaction solution are preheated, and the daily operating cost is reduced.

Description

technical field [0001] The invention relates to the technical field of drying devices, in particular to a mechanical double-effect negative pressure drying device. Background technique [0002] Drying is a treatment method that quickly consumes water, which can be used for dehydration of gas, liquid, solid and other substances. The drying device is a production equipment with the direct purpose of drying. Drying plays a very important role in production. Huge effect, when the reaction container needs to quickly consume the moisture in it, the drying device will come in handy. [0003] The common drying method uses the principle of thermal evaporation, but this drying method requires a certain amount of energy and will generate a certain heat supply chain. On this basis, the negative pressure drying method came into being. [0004] The existing equipment uses steam to heat the reaction vessel. Due to the coil type, some steam cannot be fully utilized and is discharged direct...

AI Technical Summary

Problems solved by technology

[0004] The existing equipment uses steam to heat the reaction vessel. Due to the coil type, there will always be some steam that cannot be fully utilized and will be discharged directly, resulting in a serious waste of steam energy, which also weakens the drying effect and reduces the drying effect. Efficiency, therefore, if the reuse of energy consumption of steam heat exchange devices is solved, it is one of the current problems to be solved

Images