When a disconnection detecting circuit detects failure, a controller of a temperature controller manipulates a duty ratio to distribute the duty ratio to normal heating rollers. Since the amount of heat decreased by failure of a heating roller can be compensated for by the other heating rollers, no defective drying will occur. It is not necessary to stop a printing process immediately when the disconnection detecting circuit detects failure, but a maintenance operation can be carried out after fully securing a preparation time for maintenance. The quick maintenance can be performed to restrain downtime of the printing apparatus.

A heating system for use with a can dryer or oven includes a gas burner, an electrical heating element, a heating chamber structured to heat cans using air heated by the gas burner and/or the electrical heating element, a circulation system structured to move air from the gas burner and the electrical heating element to the heating chamber, and a control system structured to selectively control the gas burner and the electrical heating element to switch between a first mode where the gas burner and the electrical heating element are active and both heat air provided to the heating chamber and in a second mode where the gas burner is inactive and the electrical heating element is active.

Disclosed are a kitchen waste treatment system and a method thereof. The kitchen waste treatment system includes a control module, a drying module, an air extraction module, a grinding module and a temperature sensor all connected with the control module. The control module is for sending a first control signal, a second control signal and a third control signal according to a current working process in a determination that it is turned on normally. The drying module is for drying kitchen waste. The air extraction module is for extracting air from the kitchen waste. The grinding module is for grinding the kitchen waste. The temperature sensor is for detecting a temperature of the drying module. The control module is further for sending a stop command to the drying module in a determination that the temperature is higher than a preset temperature threshold.

Methods and apparatuses for drying electronic devices are disclosed. Embodiments include methods and apparatuses that heat and decrease pressure within the electronic device. Some embodiments increase and decrease pressure while adding heat energy, such as by using a heated platen in contact with the electronic device or by supplying a gas (e.g., air), which may be heated, into the interior of the electronic device.

Methods and apparatuses for drying electronic devices are disclosed. Embodiments include methods and apparatuses that heat and decrease pressure within the electronic device. Some embodiments increase and decrease pressure while adding heat energy, such as by using a heated platen in contact with the electronic device or by supplying a gas (e.g., air), which may be heated, into the interior of the electronic device.

A dry box and a control method therefor, and a preparation method for an organic electroluminescent device are provided. The dry box includes a cavity and a hot plate arranged in the cavity. The hot plate includes a plurality of heating spots, the plurality of heating spots being arranged towards the hot plate to support a surface of a device to be dried, and some of the temperature of the plurality of heating spots being different and the heating spots being insulated from each other.

A dry box and a control method therefor, and a preparation method for an organic electroluminescent device are provided. The dry box includes a cavity and a hot plate arranged in the cavity. The hot plate includes a plurality of heating spots, the plurality of heating spots being arranged towards the hot plate to support a surface of a device to be dried, and some of the temperature of the plurality of heating spots being different and the heating spots being insulated from each other.

A material drying system provides for consistent and efficient drying of organic materials, such as cannabis. In certain embodiments, a partial vacuum drying system is used to dry the materials and includes a container, a heating system, a depressurization system, and a control system. Air in the container is heated to within a range of temperatures and a low vacuum is applied to assist with evaporation. In addition, the volume flow rate of air pulled out of the container is monitored and maintained at a predetermined rate, which pulls moisture away from the materials so as to prevent degradation of the materials during the drying process while also reducing drying time. A relatively high air volume flow rate is maintained at low pressure by adjusting the area of an opening in the chamber.

A battery powered blow dryer having a novel battery cooling feature to simultaneously cool the batteries and improve hair dryer performance.

A battery powered blow dryer having a novel battery cooling feature to simultaneously cool the batteries and improve hair dryer performance.