Solid bulk material waste heat recycling and sludge drying device based on double rollers
A waste heat recovery, double-drum technology, applied in the direction of dehydration/drying/thickened sludge treatment, etc., can solve the problems of poor waste heat recovery effect, not suitable for direct use, large heat exchange area, etc., to achieve short treatment time and heat exchange High efficiency, the effect of improving processing efficiency
Pending Publication Date: 2021-03-12
UNIV OF SCI & TECH BEIJING
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Problems solved by technology
Taking gas as the cooling medium as an example, the blower makes the cooling gas directly contact with the solid bulk material for heat exchange. The gas and solid can be fully contacted, and the heat exchange area is large, so that the high temperature sensible heat of the material can be better recovered. It is a kind of A heat recovery method with high efficiency, but it is not suitable for some materials that can react with certain components in the air and fine powders
In addition, after direct contact between gas and solid for heat exchange, the discharged gas will contain a large amount of impurities, which is not suitable for direct use, and the waste heat recovery effect is not good
Method used
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[0015] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.
[0016] The invention provides a solid bulk waste heat recovery and sludge drying device based on double drums.
[0017] Such as figure 1 , figure 2 As shown, the device includes an inner layer loading hopper 1, an outer layer loading hopper 2, an inner layer drum 3, an outer layer drum 4, an inner drum support column 5, a gear transmission 6, a motor 7, an outer drum lifting board 8, and an inner drum lifting board. Plate 9, equipment support 10 and discharge hopper 11, the inner layer drum 3 and the outer layer drum 4 are sleeved, the inner layer loading hopper 1 is connected to the inner layer drum 3, the outer layer loading hopper 2 is connected to the outer layer drum 4, and the inner layer drum 3 and the outer drum 4 are provided with inner cylin...
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The invention provides a solid bulk material waste heat recycling and sludge drying device based on double rollers, and belongs to the technical field of solid bulk material waste heat recycling and sludge drying. The device comprises an inner-layer roller, an outer-layer roller, a gear transmission device, a double-layer charging device and a discharging hopper; high-temperature solid bulk materials are charged into the inner-layer roller, wet sludge to be treated is charged into the outer-layer roller, and through rotation of the double-layer roller, the solid bulk materials in the inner-layer roller transmit heat to the wall of the inner-layer roller through heat conduction and radiation heat exchange; the wall surface of the roller transfers heat to sludge in the outer-layer roller through heat conduction and radiation heat exchange, the sludge absorbs the heat, then moisture is evaporated, drying treatment is performed, and the solid bulk materials subjected to heat exchange entera discharging hopper after the temperature is reduced to a preset temperature. By using the device, the waste heat of the solid bulk material can be effectively recycled, and meanwhile, the purpose of drying the sludge is achieved.
Description
technical field [0001] The invention relates to the technical field of solid bulk material waste heat recovery and sludge drying, in particular to a solid bulk material waste heat recovery and sludge drying device based on double drums. Background technique [0002] In industrial production, the residual heat of bulk materials such as solid products and waste residues is very high, but most of them are not recycled. When a small amount is recycled, the intermediate medium recovery method is mainly used, that is, air, water and heat transfer oil are used as intermediate media to recover the residual heat. . Taking gas as the cooling medium as an example, the blower makes the cooling gas directly contact with the solid bulk material for heat exchange. The gas and solid can be fully contacted, and the heat exchange area is large, so that the high temperature sensible heat of the material can be better recovered. It is a kind of It is a heat recovery method with high efficiency...
Claims
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IPC IPC(8): C02F11/13
CPCC02F11/13
Inventor 苏福永温治
Owner UNIV OF SCI & TECH BEIJING