The present invention relates to the technical field of bee product processing, and discloses a continuous drying apparatus for bee pollen and related drying method. The continuous drying apparatus for bee pollen comprises: a box body; a first drying conveying structure; a second drying conveying structure; and a heat pump dehumidification heating structure. The continuous drying apparatus for bee pollen has the advantage of high drying efficiency.

The softgel drying machine comprises a casing, first tumblers, second tumblers, a pneumatic conveying device and a air-drying system. The casing comprises a air generation chamber and a air circulation chamber. The air circulation chamber comprises a first circulation chamber and a second circulation chamber, at least one first drying chamber is located at the first circulation chamber, at least one second drying chamber is located at the second circulation chamber, the first drying chamber comprises a first air inlet and a first air outlet, the second drying chamber comprises a second air inlet and a second air outlet. The first tumblers are located at the first circulation chamber. The second tumblers are located at the second circulation chamber. The air-drying system is located at the air generation chamber and comprises a blower fan, an air return duct and an air supply port.

A temperature-adjustable four-effect dehumidifying and drying system, having at least two sets of dehumidification heat pump assemblies and a set of auxiliary heat exchange assembly, wherein the dehumidification heat pump assemblies have at least two refrigerant modules and an air module, the auxiliary heat exchange assembly is formed by connecting at least two heat exchangers (4, 12) in series by means of a circulation pipeline, and the circulation pipeline is provided with a refrigerant inlet and a refrigerant outlet.

A control method and control device for a heat pump-type double-circulation hot-air drying system, relating to a device for supplying or controlling air or gas for drying solid materials or products, and in particular to a control method and control device for a heat pump-type hot-air drying system. The method comprises: configuring a temperature control parameter, and saving a preset temperature control curve parameter; detecting and monitoring an outlet air temperature, and the temperature and humidity of a drying room; dynamically adjusting a set temperature according to a preset temperature control curve; and selecting, according to a current set temperature, a double-circulation dynamic operation mode of a system. The control device uses a micro-processor to realize program control. By building an inner circulation loop for large-volume air circulation, the latent heat of condensation in a refrigerant is fully absorbed, to improve the basic air temperature.

A heat pump dryer includes a main casing having an air inlet channel and an air outlet channel, a compressor, a first heat exchanger positioned in the air inlet channel, a second heat exchanger positioned in the air outlet channel, a fan provided in the air inlet channel, and an energy efficient heat exchanger. The energy efficient heat exchanger has a first portion partially exposed to the air inlet channel, and a second portion partially exposed to the air outlet channel. Air is arranged to enter the air inlet channel to sequentially perform heat exchange with the first portion of the energy efficient heat exchanger and the first heat exchanger. Air passing through the air inlet channel is arranged to enter the air outlet channel to sequentially perform heat exchange with the second portion of the energy efficient heat exchanger and the second heat exchanger.

Hot air containing water is discharged from a heating space to pass through a vertically bent fluid pipeline (1035) formed by an hot air section (1030) of a water condensing pipeline structure (1029) and a vertically bent flow guiding structure (1032). Meanwhile, external inlet air having relatively low temperature is pumped through an cold air section (1031) of the water condensing pipeline structure (1029) to enable the hot air to be cooled, thereby condensing the water contained in the hot air. The condensed water is collected or flows with a first part of the hot air to pass through an hot air shunt port (1026) for being guided to an external discharging port (109). A second part of the hot air is guided by the hot air shunt port (1026) to flow towards a hot air return inlet (1022), thereby reducing the thermal energy loss and saving electric energy.

A process for determining the drying time for a structure or building uses energy values based on sensible and latent energy to determine the enthalpy evaporation evaluation value for a condition. The condition includes the ambient temperature, the dew point temperature, and the wet bulb temperature for the air. The condition also includes the ambient humidity ratio, the dew point humidity ratio, and the wet bulb humidity ratio. The process can be implemented in a device that uses these values to determine the enthalpy evaporation evaluation value, which is used to predict a drying time for the materials.

The present invention relates to a heating element for a timber drying device and a timber drying device using same, the heating element comprising: a concave and convex metal plate sandwiched between vertically laminated timbers and having ridges and valleys alternately formed thereon; heating cables generating heat as power is applied thereto; and a plurality of heat transfer pipes which are tightly coupled to the concave and convex metal plate between the ridges and valleys of the concave and convex metal plate to reinforce the strength of the concave and convex metal plate and into which the heating cables are sequentially inserted to transfer heat generated from the heating cables to the concave and convex metal plate. According to the present invention, with a very simple structure, heat can be transferred evenly throughout the timbers, the heat conduction efficiency from the heating cables to the concave and convex metal plate can be greatly improved, the lifespan of the heating element can be significantly extended, and the convenience of a timber laminating work for timber drying can be greatly improved.

The disclosure relates to a device (21) for producing a fertilizer and/or feed, comprising a chamber (26) having a first opening (27) for letting in an emulsion (14′) of wastewater (8, 9) and grease (14), and a second opening (28) for adding organic waste (16), a circulating element (29) arranged in the chamber (26) for circulating a mixture (14′, 16) of the added emulsion (14′) and the added organic waste (16), and a heating element (30) for drying the mixture (14′, 16) by evaporating water (31) from the mixture (14′, 16).

A method for obtaining pure drinking water from dewatered biological products is described. The process is carried out in a hermetic dewatering chamber isolated from the ambient atmosphere and in parallel with a process during which dried products are placed on drying trays. All the process parameters, such as temperature, humidity, and appropriate pressure inside the chamber, are controlled. The vapor generated during the product dewatering process, released from the products, is continuously removed from the dewatering chamber through the upper opening, exits through the outflow channel, and enters through the condenser. The process of obtaining clean drinking water is carried out outside the chamber and is conducted in several stages: vapor passes through disinfectant grids, vapor flows to a condenser cooled with ice water, and the vapor condenses on densely arranged lamellas. The condensate is then pumped to a discharge tub.