53 results about "Solar dryer" patented technology

The invention discloses a poly-generation system using biomass and solar energy for making methyl alcohol and generating power. The poly-generation system comprises a solar energy heat collecting reaction subsystem, a biomass gasification subsystem, a methyl alcohol synthesis subsystem and a power generation subsystem. Main devices comprise a flat plate type solar energy drying device, a groove type solar thermal collector, a steam generator, a tower type solar energy reflection mirror field, a tower type high-temperature gasification reactor, a gas temperature reduction device, a gas condensation purifying device, a compressor set, a methyl alcohol synthesis tower, a heat exchanger, a gas-liquid temperature reduction device, a flash tank, a separator, a mixer, rectifying tower, a methyl alcohol, a combustion chamber, a compressor, a gas turbine, a waste heat boiler, a steam turbine, a condenser, a water feed pump and a power generator. By the utilization of the poly-generation system, solar energy is converted into chemical energy, the problems that the storage of solar energy is difficult, and stability of renewable energy source delivering is poor are solved, and meanwhile the effective utilization efficiency of the biomass is improved.

The invention relates to a low melting point alloy phase change heat storage device applied to a solar dryer, which is characterized by comprising a drying chamber box body, a drawing type material containing box, heat storage blocks and an upper and lower sliding type heat insulation door. Two to one hundred heat storage blocks are arranged in a drying space of the drying chamber box body, and the edge parts of the heat storage blocks are supported by the heat insulation blocks to be fixed with the drying chamber box body. The drawing type material containing box is located between an upper heat storage block and a lower heat storage block and is contacted with the lower heat storage bock, and drying samples are contained in the drawing type material containing box. Each heat storage block is composed of a heat storage material container, a heat storage material, a heat conducting pipe and heat conducting oil. The heat storage materials are encapsulated in the heat storage material containers, the heat conducting pipes are arranged in the heat storage material containers, the heat storage materials are encapsulated between the inner walls of the heat storage material containers and the outer walls of the heat conducting pipes, and the heat conducting oil serves as a heat conducting medium in the heat conducting pipes. The low melting point alloy phase change heat storage device applied to the solar dryer has the advantages of being convenient in feeding and discharging, reliable, safe and high in drying efficiency.

The present invention provides an improved solar dryer with improved. The dryer consists of a solar absorber/collector (9) and a drying chamber (6). One end of the collector is connected to a forced draft fan (10) and the other end connects the drying chamber. The drying chamber has a drawer in which the material to be dried is kept on a wire mesh. The dryer further has the provision for placing color indicative silica gel under the wire mesh when operated in recirculation mode. The other end of the drying chamber has an induced draft fan (11). Both the dc fans operate using a 10 watt photovoltaic panel (3). V-trough reflectors (4,5,7,8) made from anodized aluminum are fixed on the collector and optionally on the drying chamber. A tracking circuit is incorporated to auto-track the dryer. A locking mechanism (14) is also incorporated to help the unit withstand high wind load. The dryer further has the provision of programmable recirculation of the spent air from drying chamber once its humidity drops below a pre -set value which process helps to speed up the rate of drying.

The stepped pig and/or ox excrement treating process includes pre-treatment of the gathered excrement, conventional anaerobic digestion in marsh pool to prepare marsh gas, using marsh gas for generating electric power, precipitating dregs in the precipitation tank from the marsh pool, using marsh liquid from the precipitation tank in planting feed grass, drying the marsh dregs with solar energy for planting mushroom, raising earthworm with the leftover after gathering mushroom, and using earthworm excrement in planting feed grass. The present invention forms one positive circulation to realize the comprehensive utilization of wastes.

The invention discloses a solar dryer. The dryer comprises a solar collector, a medium pipeline, a ventilating pipeline and a drying cabin, wherein a heat absorber of the collector is formed by a porous heat absorbing plate with a snake bend welded on the back; the snake bend is filled with heat-conducting media with boiling points at about 30 DEG C; a heat release pipeline divided into a plurality of layers is designed on the upper layer of the drying cabin; and the heat release pipeline and the heat absorber are connected by a pipeline. The dryer has the beneficial effects that the heat-conducting media circularly flow between the heat absorbers and the heat release pipeline and transmit heat to the dried objects quickly, thus reducing the heat loss and increasing the drying speed; and the air passes through the porous heat absorbing plate, absorbs heat and becomes hot air, the hot air is sent into the drying cabin and takes away moisture, and the hot air can be recycled after being dried by the dryer.

The invention relates to a solar dryer which comprises an oil tank, an evacuated collector tube, circulating oil pumps, a drying system and a liquid-gas heat exchanger, wherein conduction oil is stored in the oil tank, the circulating oil pumps are arranged on oil outlets of the oil tank, and the oil outlets of the oil tank comprise two paths; reflective collecting mirrors are uniformly and fixedly arranged on the periphery of the evacuated collector tube and utilizes focused solar light to heat the conduction oil flowing through the evacuated collector tube; a temperature sensor for measuring the temperature of the conduction oil is arranged in the oil tank; the conduction oil achieving the temperature requirement flows through the liquid-gas heat exchanger and exchanges heat with process gas in the drying system, so that the process gas is dried. According to the solar dryer, after the high-temperature conduction oil exchanges heat with the process gas in the liquid-gas heat exchanger, the heated process gas is used for drying substances to be dried in a drying tube, for example drying tobaccos; thus, the utilization field of solar energy is widened.

A solar dryer system, including an upper thermal collection unit including a plurality of tiers of thermal radiation collection panels, where a vent is disposed between adjacent ones of the tiers of the thermal radiation collection panels. The solar dryer system can include a chamber disposed between the upper thermal collection unit and a base, where the chamber is configured to receive an object for a drying process using the dryer system. The solar dryer system can also include at least one fan disposed within the chamber and coupled to the base to provide circulation for the drying process.

The invention relates to the technical field of dryers, in particular to a novel efficient solar dryer. The novel efficient solar dryer comprises a mounting plate, wherein a photovoltaic panel is fixedly mounted on one side of the front face of the mounting plate, an inverter and an air blower are fixedly connected to the back face of the mounting plate, a hole groove is formed in one side of themounting plate, a trough type heat collector is fixedly mounted in the hole groove, and a drying box is fixedly mounted on the front face of the mounting plate. The novel efficient solar dryer has theadvantages that by arranging the photovoltaic panel, the trough type heat collector and the drying box on the mounting plate, heat collection and power generation are conducted at the same time, thedrying efficiency is improved, and a low cost is guaranteed; as the angle of the mounting plate can be adjusted at multiple angles, the solar energy utilization rate is increased; by arranging partition plates in a heat collection pipe, the heat absorption effect is enhanced; by arranging a heat conduction plate, materials can be uniformly heated; by arranging small boxes on a storage rack, the problem of material accumulation is avoided; by arranging supporting plates, the materials can be conveniently taken or placed; and a heat conduction plate fixing structure is simple, effective and convenient to manufacture.

The invention discloses a tube type integrated solar dryer, which comprises a solar heat collector, a fan, a ventilating tube and a drying bin. The solar heat collector is a tube type solar air collector, and a porous screen in the drying chamber is arranged in an inclination angle of 20 degrees. The drying temperature of the tube type integrated solar dryer ranges from 30 DEGC to 50 DEG C, and accordingly quality of dried products is guaranteed. Besides, since the solar air collector is integrated with the drying bin, heat loss is reduced, and the tube type integrated solar dryer is applicable to drying crops of single rural family.

The invention discloses an innocent treatment method for kitchen waste. The method comprises the steps of sorting and screening coarse solids and gravels from collected kitchen waste, carrying out sedimentation by a first primary sedimentation tank, aeration by an aeration tank and sedimentation by a second primary sedimentation tank so as to obtain waste activated sludge and primary sewage sludge, subjecting the waste activated sludge to centrifugation, then, carrying out hydrothermal carbonization, carrying out centrifugation so as to obtain wet state hydrothermal charcoal and hydrothermal carbonized liquid, transferring the hydrothermal carbonized liquid and the primary sewage sludge into a leachate bed reactor for an anaerobic digestion reaction so as to obtain biogas capable of serving as new energy, and drying the wet state hydrothermal charcoal by a solar dryer, so as to obtain a high-energy environment-friendly biofuel energy. According to the method provided by the invention,the hydrothermal charcoal with higher phosphorus content and yield is obtained, the digestibility of an anaerobic digestion process is improved, and thus, the residual amount of digested sediment is reduced; and after innocent treatment, the hydrothermal charcoal and the biogas as biofuel energy sources can be obtained, and thus, the recycling of energy is achieved.

The invention discloses a concentrated solar device which comprises a reflector structure, a receiving device and cover plate glass. The reflector structure comprises a primary reflector for receiving solar rays, and a secondary reflector for receiving the solar rays reflected by the primary reflector. The secondary reflector is arranged in the space of the primary reflector. The receiving device is arranged at the bottom of the primary reflector and located in the reflective light path of the secondary reflector to receive the solar rays reflected by the secondary reflector. The reflector structure, the receiving device and the cover plate glass form a sealed concentrated unit. The concentrated solar device is reliable in performance, high in intensity, low in cost and long in service life, can be arranged in array and can be applied in large scale.

The invention relates to a chemical color-retaining method for dried rose flowers. The method comprises the specific preparation steps and the optimal soaking time that 20 g of magnesium chloride and20 g of citric acid are taken and dissolved in 160 mL of distilled water so as to prepare a magnesium chloride and citric acid mixed solution with the concentration of 20%, and fresh flowers are soaked in the mixed solution for 5 hours; 20 g of sucrose and 20 g of citric acid are taken and dissolved in 160 mL of distilled water so as to prepare a sucrose and citric acid mixed solution with the concentration of 20%, and the fresh flowers are soaked in the mixed solution for 4.5 hours; 30 mL of glycerol and 30 mL of a magnesium chloride solution with the concentration of 20% are taken and dissolved in 140 mL of distilled water so as to prepare a glycerol and magnesium chloride mixed solution with the concentration of 30%, and the fresh flowers are soaked in the mixed solution for 4 hours. According to the method, rose petals treated by three chemical color-retaining reagents can keep fadeless for a long time under natural conditions after being dried by a solar drier, the color of the rose petals is basically the same as the primary color or is very small in change, and therefore a very high utilization value is achieved.

The invention discloses a combined type solar dryer which comprises at least one dryer unit. According to the combined type solar dryer, a vacuum tube solar heat collector is utilized to absorb solar energy and heat a heat accumulation medium, and then the heat accumulation medium heats air in a drying chamber so as to achieve the purpose of drying materials in the drying chamber. The combined type solar dryer is flexible in usage mode, applicable to both low-temperature ranges and high-temperature ranges, and usable on powered or powerless occasions; and meanwhile, the combined type solar dryer can be used alone in the form of one single drying unit or can be used in a large-scale mode by combining and connecting a plurality of the drying units to form a large system, and conveyor belts can be used in upper and lower drying layers of the combined long drying system so as to facilitate circular operations of drying a large quantity of materials.

The invention discloses an auxiliary heating flat plate integral type solar drier, which comprises a flat plate solar air heat collector, a heating furnace, a blower, a pipeline and a drying chamber. Heat collection plates of the heat collector are multi-hole heat collection plates, a perforated sieve of the drying chamber is placed at an inclination angle of 20 degrees, and the heating furnace uses crop straws as fuel. The entire system constitutes a compact whole, and the air heat collector and the drying chamber enclose to form a drying space. The drying temperature of the system is around 50 DEG C, so that the quality of dried products is ensured. Also, the system is compact in designed structure and high in heat efficiency, and is suitable for crop drying quantity demanded by a single rural family.

The invention discloses a coil integrated solar dryer with auxiliary heating, which comprises a coil type solar air heat collector, a heating furnace, a fan, pipelines and a drying bin. A heat collecting plate of the heat collector is a metal plate with the sunward side plated with selective absorbing coating, a coil is welded on the back of the heat collecting plate of the heat collector, a porous sieve of the drying bin is inclined by about 20 degrees, and the heating furnace utilizes crop straws as fuel. The whole solar dryer is closely integrated, and a drying space is enclosed by the air heat collector and the drying bin together. The drying temperature of the solar dryer is about 50 DEG C, so that the quality of dried products is guaranteed. The solar dryer is compact in structural design, high in heat efficiency and applicable to crop drying amount of single rural families.

The invention discloses a flat pipe integral type solar drier, which comprises a solar heat collector, a blower, a ventilating pipeline and a drying chamber. Heat collection plates of the heat collector are multi-hole heat collection plates, and a perforated sieve of the drying chamber is placed at an inclination angle of 20 degrees. The drying temperature of the system is around 30-50 DEG C, so that the quality of dried products is ensured. In addition, the air heat collector and the drying chamber constitute a whole with a compact structure, and the flat pipe integral type solar drier reduces heat loss and is suitable for crop drying quantity demanded by a single rural family.

The invention discloses an internal absorption type solar drier. The internal absorption type solar drier comprises a solar heat collecting device, a drying box and a control system, wherein phase change energy storage drawers, material drying drawers, a cross flow waste heat recovery exchanger and adsorption dehumidification drawers are sequentially arranged inside the drying box from top to bottom; a partition is arranged between the phase change energy storage drawers, the material drying drawers, the cross flow waste heat recovery exchanger and the adsorption dehumidification drawers and the back inner wall of the drying box; the partition and the back inner wall of the drying box define a preheated air flow channel; a circulating fan is arranged at the bottom of the drying box; the bottoms of the drawers are screen-shaped; a phase change energy storage material is placed in the phase change energy storage drawers; a to-be-dried material is placed in the material drying drawers; an adsorption dehumidification material is placed in the adsorption dehumidification drawers; the cross flow waste heat recovery exchanger is provided with an air inlet and an exhaust hole; heat superconducting finned tubes in the solar heat collecting device are positioned inside vacuum heat collecting pipes; the vacuum heat collecting pipes are obliquely arranged; the bottom ends of the vacuum heat collecting pipes are connected with pipe holders and are supported by a bracket; the top ends of the vacuum heat collecting pipes are hermetically connected with the upper part of the drying box; and the heat superconducting finned tubes stretch into the preheated air flow channel inside the drying box.

A double-working-media natural circulating bin type solar dryer can realize high-efficient heating and dewatering of things to be dried by controllable indirect heating and convection drying manner on the premise of no consumption of auxiliary energy and no power drive during dewatering, drying and long-term safety storage. Further, by temperature regulating and dehumidifying, the inside environment of a storage device can be kept dry by natural ventilation, and damage caused by insects, birds and rats and dust pollution are prevented; energy saving, emission reduction and low-carbon effect are achieved, production management cost is reduced, and safety, sanitation and long-term storage of storage things are guaranteed. The double-working-media natural circulating bin type solar dryer is widely applicable to rural households and massive production and application in the fields of the industry and the agriculture.

The invention discloses a coil pipe integral type solar drier, which comprises a solar heat collector, a blower, a ventilating pipeline and a drying chamber. Heat collection plates of the heat collector are metal plates, the sunny sides of the metal plates are coated with selective absorption coatings, and snake bends are welded on the back sides of the metal plates, and a perforated sieve of the drying chamber is placed at an inclination angle of 20 degrees. The drying temperature of the system is around 30-50 DEG C, so that the quality of dried products is ensured. In addition, the air heat collector and the drying chamber constitute a whole with a compact structure, and the coil pipe integral type solar drier reduces heat loss and is suitable for crop drying quantity demanded by a single rural family.

The invention discloses a coil tumbling solar dryer with auxiliary heating, which comprises a solar heat collector, a fan, pipelines, a tumbling drying bin, an air heating furnace and a motor. A coil is welded on the back of a heat collecting plate of the heat collector, rollers are arranged on a holder of the drying bin, and the drying bin is connected with the motor through a gear structure and can roll under drive of the motor. Teeth are uniformly and circumferentially distributed inside the drying bin and can drive the dried articles to tumble, and the air heating furnace serving as an auxiliary heat source can guarantee all-weather operation of the dryer. The drying temperature of the solar dryer is about 30-50 DEG C, so that the quality of dried products is guaranteed.