How to prevent green bricks from collapsing in the dryer kiln?

Regarding the common problem of bricks collapse, our company has the following suggestions:

• Strictly control the moisture content of the brick blanks: Control the amount of water added to the mixer. Too much water will make the brick blanks too soft with excessive moisture, while too little will cause the blanks to fail to form properly and block the extruder machine. Brick factories can adopt an automatic water addition system, which can monitor soil moisture and adjust the water volume accordingly.
• Moisture content upon entering the drying kiln: Brick blanks should have 1-3 days of natural drying time to reduce the dehumidification pressure in the drying chamber, thereby decreasing the probability of brick inversion. If the customer is building a tunnel kiln, it is recommended to have 3-5 blank storage lines. For rotary kilns, the diameter of the rotary kiln should be over 130 meters.
• Optimize the blank stacking structure: The plan should be arranged reasonably according to the brick type and raw materials to ensure uniform airflow penetration.
• Select appropriate exhaust fans: The air pressure and air volume of the exhaust fans should be suitable based on the kiln's stacking plan; unsuitable fans will significantly reduce the dehumidification effect.
• Precisely regulate ventilation and temperature in the preheating zone: Change "relatively centralized dehumidification" to "relatively dispersed gate-opening smoke exhaust" to lower the relative humidity of the flue gas. When selecting a kiln design plan, avoid outdated centralized dehumidification schemes and choose our latest dispersed dehumidification scheme.Additionally, hire experienced kiln technicians who can correctly operate the fans and valves on the kiln when the humidity in the kiln is too high.
• Install a humidity monitoring system: Our recently developed humidity monitoring system can effectively monitor the humidity in the kiln's drying section. It will issue an alarm for excessively high humidity values, allowing kiln operators to intervene early before brick collapsing occurs.
• The insulation of the kiln, especially in winter, is crucial. If the outside temperature is too low and no insulation measures are taken for the bricks, the bricks will freeze, leading to their collapse.