Systems for drying resin granulates include a first and second drying chamber each defining an internal volume configured to hold the plastic resin; a source of heated air in fluid communication with the internal; a first vacuum source in fluid communication with the internal volumes of the first and second drying chambers on a selective basis and configured to, during operation, generate a first vacuum within the internal volumes of the first and second drying chambers; and a second vacuum source in fluid communication with the internal volumes of the first and second drying chambers on a selective basis and configured to, during operation, generate a second vacuum within the internal volumes of the first and second drying chambers to draw the resin pellets into the internal volumes.

A microwave vacuum dryer includes a loading chamber and a first vacuum pump in communication with the loading chamber, a first door separating the loading chamber from an external environment, a drying chamber adjacent the loading chamber, a second vacuum pump in communication with the drying chamber, and a condenser in communication with the drying chamber, a second door separating the loading chamber and the drying chamber, an unloading chamber adjacent the drying chamber and a third vacuum pump in communication with the unloading chamber, a third door separating the drying chamber from the unloading chamber, a fourth door separating the unloading chamber from the external environment, and a microwave chamber having a plurality of magnetrons, the microwave chamber positioned on a different plane from the loading and unloading chambers and adjacent the drying chamber.

An oil sludge treatment system includes: a reduced-pressure fermentation dryer; a filtration apparatus; and a cleaner. The reduced-pressure fermentation dryer is configured to: store oil sludge in an airtight container; heat and stir the oil sludge under reduced pressure so that a temperature of the oil sludge is within a predetermined temperature range; decompose organic matter contained in the oil sludge using microorganisms while evaporating water; and obtain volume-reduced dried product. The filtration apparatus filters oil from the dried product. The cleaner cleans, by steam, the dried product from which the oil has been filtered.

The present disclosure discloses a vacuum drying tank, including a shell and a pumping device. The shell includes a first shell part, a second shell part, and a third shell part; the second shell part has an accommodating cavity provided with an opening in the top; an air pumping hole is formed in the accommodating cavity; the first shell part is, hermetically covered at the opening; the third shell part is arranged below the second shell part; the pumping device is arranged in the third shell part and is communicated with the air pumping hole; and the pumping device is used for pumping out air in the accommodating cavity from the air pumping hole, so that the accommodating cavity is in a vacuum state.

A lid for curing organic plants. The lid is configured to be secured onto a contain with an open top, wherein the lid includes a gasket located on the bottom side of the lid, wherein the lid further includes one or more valves configured to prevent air from entering the container when the lid is secured, wherein the valve is further configured to allow air to escape the container and enter the container when actuated, wherein the lid includes a plurality of numbers associated with a calendar date and a calendar month annularly arranged on a top surface of the lid, and wherein the lid further includes a plurality of tabs, wherein the plurality of tabs are configured to move bi-directionally and include an opening configured to align and display the plurality of numbers.

A method of manufacturing a cylindrical includes manufacturing an electrode assembly having a jelly roll structure by preparing a positive electrode plate, a negative electrode plate, and a separator, and by interposing the separator between the positive electrode plate and the negative electrode plate, and then spiral-winding the positive electrode plate, the negative electrode plate, and the separator; and drying the electrode assembly after manufacturing the electrode assembly. The drying of the electrode assembly may include a hot air circulating drying step. A drying apparatus is also provided.

An oil sludge treatment system includes: a reduced-pressure fermentation dryer; a filtration apparatus; and a cleaner. The reduced-pressure fermentation dryer is configured to: store oil sludge in an airtight container; heat and stir the oil sludge under reduced pressure so that a temperature of the oil sludge is within a predetermined temperature range; decompose organic matter contained in the oil sludge using microorganisms while evaporating water; and obtain volume-reduced dried product. The filtration apparatus filters oil from the dried product. The cleaner cleans, by steam, the dried product from which the oil has been filtered.

Methods and systems for the thermo-vacuum drying and processing of objects such as clothes. A vacuum ejector driven by high-pressure steam is employed to evacuate evaporated moisture mixed with air from a dryer vessel producing an intensification of the drying process such as can significantly reduce the energy and time requirements for the drying process and increase water utilization.

An apparatus and method for a low pressure laundry treating appliance having a cabinet defining an interior, and a drum provided within the interior, the drum including at least an inner wall and an outer wall. Pressure differentiations and flash evaporation can enable drying without excess use of conventional heating methods.

A lid for curing organic plants. The lid is configured to be secured onto a contain with an open top, wherein the lid includes a gasket located on the bottom side of the lid, wherein the lid further includes one or more valves configured to prevent air from entering the container when the lid is secured, wherein the valve is further configured to allow air to escape the container and enter the container when actuated, wherein the lid includes a plurality of numbers associated with a calendar date and a calendar month annularly arranged on a top surface of the lid, and wherein the lid further includes a plurality of tabs, wherein the plurality of tabs are configured to move bi-directionally and include an opening configured to align and display the plurality of numbers.