A method of drying frac sand without heat is comprised of constructing a drainage system and placing sand on top of a perforated top layer thereon. The drainage system has multiple layers through which liquid passes to dewater sand resting thereon. At the bottom of the drainage system, perforated collection pipes, at least partially surrounded by rocks, collect and carry the liquid to a collection pond for reuse. A cellular confinement layer has sections of panels which, upon expansion, have cells filled with rocks. A woven monofilament geotextile fabric layer comprising woven monofilament geotextile fabric sheets sewn together has sized openings which allow fluid, but prevent sand from passing through the openings. The top layer comprises high density polyethylene perforated sheets welded together. A watertight liner sits below the collection pipes and the cellular confinement layer. Protective layers above and below the watertight liner prevent rocks from damaging same.

A method of drying frac sand without heat is comprised of constructing a drainage system and placing sand on top of a perforated top layer thereon. The drainage system has multiple layers through which liquid passes to dewater sand resting thereon. At the bottom of the drainage system, perforated collection pipes, at least partially surrounded by rocks, collect and carry the liquid to a collection pond for reuse. A cellular confinement layer has sections of panels which, upon expansion, have cells filled with rocks. A woven monofilament geotextile fabric layer comprising woven monofilament geotextile fabric sheets sewn together has sized openings which allow fluid, but prevent sand from passing through the openings. The top layer comprises high density polyethylene perforated sheets welded together. A watertight liner sits below the collection pipes and the cellular confinement layer. Protective layers above and below the watertight liner prevent rocks from damaging same.

The present invention provides a hay bale dryer, comprising: a platform, the platform dimensioned to support the hay bale; a spike rack movably coupled to the platform, the spike rack having a plurality of spikes, each spike having a plurality of slots and each spike dimensioned to penetrate through the hay bale; a fan coupled to the spike rack and operative to blow air through the slots in the spikes, wherein the spike rack is raised to permit loading and unloading of the hay bale, and lowered to permit drying of the hay bale via the air blown through the spikes.

The present invention provides a hay bale dryer, comprising: a platform, the platform dimensioned to support the hay bale; a spike rack movably coupled to the platform, the spike rack having a plurality of spikes, each spike having a plurality of slots and each spike dimensioned to penetrate through the hay bale; a fan coupled to the spike rack and operative to blow air through the slots in the spikes, wherein the spike rack is raised to permit loading and unloading of the hay bale, and lowered to permit drying of the hay bale via the air blown through the spikes.

A plurality of modular units are connected together on a slightly sloped drainage field with a perforated header pipe at the lower side conveying water away from the drainage system. An impermeable flexible liner cushioned on both sides is located below the modular units. The modular units are each made up of rigid boxes that have connecting cross slots at the bottom thereof and vertical perforations there through. The rigid boxes are lined with a drainage fabric that is site specific and have an expanded geosynthetic material therein, which is held in place when filled with porous granular material. High flexural strength mats are connected together over the tops of the modular units. An air inlet pipe connects air to the cross slots, down the sloped drainage field, to the header pipe to drain water from the bulk granular material resting on the high flexural strength mats. The entire system may be quickly disassembled, moved to a different location, and reassembled with the number of modular units being changed according to the circumstances.

A plurality of modular units are connected together on a slightly sloped drainage field with a perforated header pipe at the lower side conveying water away from the drainage system. An impermeable flexible liner cushioned on both sides is located below the modular units. The modular units are each made up of rigid boxes that have connecting cross slots at the bottom thereof and vertical perforations there through. The rigid boxes are lined with a drainage fabric that is site specific and have an expanded geosynthetic material therein, which is held in place when filled with porous granular material. High flexural strength mats are connected together over the tops of the modular units. An air inlet pipe connects air to the cross slots, down the sloped drainage field, to the header pipe to drain water from the bulk granular material resting on the high flexural strength mats. The entire system may be quickly disassembled, moved to a different location, and reassembled with the number of modular units being changed according to the circumstances.

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.

An apparatus according to an embodiment of the present disclosure is for automatically managing a helmet. Because the inside of a helmet may be sterilized and dried in a short time, a comfortable safety helmet may be ensured even during a short break time. Also, because charging may be performed without removing attachments such as an IoT device, an electronic device, and an illumination light from the helmet, the inconvenience of time and effort spent on attaching and detaching the attachments may be eliminated. Also, because the attachments such as the IoT device, the electronic device, and the illumination light may be charged at every break in the middle of work, a required capacity of a rechargeable battery may be reduced, a weight of the attachments may be reduced, and thus, the burden on the user to use the helmet may be reduced.

An apparatus according to an embodiment of the present disclosure is for automatically managing a helmet. Because the inside of a helmet may be sterilized and dried in a short time, a comfortable safety helmet may be ensured even during a short break time. Also, because charging may be performed without removing attachments such as an IoT device, an electronic device, and an illumination light from the helmet, the inconvenience of time and effort spent on attaching and detaching the attachments may be eliminated. Also, because the attachments such as the IoT device, the electronic device, and the illumination light may be charged at every break in the middle of work, a required capacity of a rechargeable battery may be reduced, a weight of the attachments may be reduced, and thus, the burden on the user to use the helmet may be reduced.

A bale dryer including a support frame, at least one air intake manifold movably coupled to the support frame for supplying heated air, a bale retainer coupled to the support frame and configured for retaining at least one bale in a fixed position vertically spaced from the at least one air intake manifold, and an actuator coupled to the at least one air intake manifold and configured to move the at least one air intake manifold between a retracted position and an extended position.