Detection method for gypsum boards in drying process

Abstract

The invention provides a detection method for gypsum board during the drying process, comprising: Step 1, before the gypsum board slurry is solidified, a button recorder is placed inside the board to record the time; Step 2, the button recorder is together with the gypsum board After passing through the dryer, measure and record the parameters inside the gypsum board according to the predetermined frequency; step 3, take out the button recorder after passing through the dryer, and record the time, from the recording time in step 1 to the time of taking out the button recorder in the button recorder Data export for corresponding time periods between recording times. Dry the gypsum board with the button recorder and record the temperature and humidity changes inside the gypsum board during the drying process, obtain the temperature and moisture status of the gypsum board during the drying process, adjust the process control parameters in time according to environmental factors such as seasonal changes, and guide online production , thereby improving the drying quality and drying efficiency of the gypsum board, and greatly reducing the hidden trouble of installation compared with the prior art.

Description

technical field [0001] The invention relates to a gypsum board preparation technology, in particular to a detection method for a gypsum board during a drying process. Background technique [0002] In the production process of gypsum board, the formed gypsum board is dried through the three drying zones of the dryer. The current control method for drying the board is to control the outlet air temperature of the three zones of the dryer, which is completely controlled by the temperature as a reference. With the change of seasons or raw materials, the boards produced under the same temperature control sometimes have low temperature or overheating, and there is no guiding data to adjust the drying temperature of each area of ​​the dryer in time, which affects the continuous production of gypsum boards . [0003] The dryness of the gypsum board can be measured by the internal water evaporation of the board. The traditional measurement method is to open multiple doors of the drye...

AI Technical Summary

Problems solved by technology

[0002] In the production process of gypsum board, the formed gypsum board is dried through the three drying zones of the dryer. At present, the control method for drying the board is to control the outlet air temperature of the three zones of the dryer, which is completely controlled by the temperature as a reference. With the change of seasons or raw materials, the boards produced under the same temperature control sometimes have low temperature or overheating, and there is no guiding data to adjust the drying temperature of each area of ​​the dryer in time, which affects the continuous production of gypsum boards

[0003] The dryness of gypsum board can be measured by the internal water evaporation of the board. The traditional measurement method is to open multiple doors of the dryer at the risk of high temperature during the production process, manually drag the board out for on-site weighing, and use the weight loss method To calculate the evaporation, this method is not only time-consuming, laborious, but also has safety operation risks

In addition, traditional methods cannot measure the temperature and humidity changes inside the gypsum board during the molding process.