Microwave hot air jet flow synergistic drying device
The technology of a microwave hot air and jet device is applied in the field of sewage sludge treatment, which can solve the problems of low drying efficiency and high energy consumption, and achieve the effects of fast drying efficiency and improvement of cooling capacity utilization efficiency.
Pending Publication Date: 2019-01-18
明阳(宁波)环保科技有限公司
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Problems solved by technology
[0007] Aiming at the technical problems of low drying efficiency and high energy consumption in the above-mentioned prior art, the present invention proposes a microwave hot air jet synergy based on microwave pretreatment, jet synergy, deep dehydration, and rational distribution and utilization of energy to reduce energy consumption. Drying device
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[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation examples.
[0028] Such as figure 1 As shown, the frame structure of the microwave hot air jet coordinated drying device of the present invention is illustrated, including a drying box 2, a dehumidification heating device 3, a microwave sludge conditioning device 4, a high-pressure mechanical dehydration device 5, a screw conveyor 6, and an extrusion machine 7 , the jet device 8, the microwave sludge conditioning device 4 is arranged at the front end of the whole system, the microwave sludge conditioning device 4 is a device for continuous and dynamic microwave conditioning of the sludge, that is, the sludge is completed after flowing through the microwave conditioning device Sludge conditioning treatment: a high-pressure mechanical dehydration device 5, a screw conveyor 6, an extruder 7 and a drying box 2 are sequentially arranged at the rear ...
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The invention relates to a microwave hot air jet flow synergistic drying device. The microwave hot air jet flow synergistic drying device comprises a drying oven (2), a dehumidifying-heating device (3), a microwave sludge conditioning device (4), a high-pressure mechanical dehydrating device (5), a helical conveyer (6), a banded extruder (7) and a jet flow device (8), wherein the microwave sludgeconditioning device (4) is provided with a sludge inlet and a sludge outlet; sludge is drained to the sludge outlet after being preheated by microwaves; the sludge outlet is connected with the feedinghole of the high-pressure mechanical dehydrating device (5) through a pipeline; the high-pressure mechanical dehydrating device (5) is used for performing ultrahigh-pressure mechanical filter press dehydration on the sludge; a dehydrated mud cake is conveyed into the banded extruder (7) through the helical conveyer (6) for smashing and extruding, is finally conveyed to the drying oven (2), and isdried under the combined effect of the drying oven (2) and the jet flow device (8); the air outlet of the drying oven (2) is connected with the air inlet of the dehumidifying-heating device (3); thedehumidifying-heating device (3) is used for drying and dehumidifying saturated humidity air; dry air is introduced into the drying oven (2) through the pipeline (1). By adopting the microwave hot airjet flow synergistic drying device, the multilevel utilization of microwave heat is realized on the basis of microwave preheating treatment to achieve low energy loss, drying is accelerated and the drying efficiency is improved under the action of jet flow high-speed impact, and the internal circulation of the hot air is realized in the dehumidifying thermal conversion process.
Description
technical field [0001] The invention relates to the field of sewage sludge treatment, in particular to a microwave hot air jet co-drying device. Background technique [0002] Municipal sludge is the product of sewage treated by sewage treatment plants. It is a heterogeneous body with high water content composed of organic debris, bacterial cells, inorganic particles, etc. It is difficult to dehydrate by ordinary methods. [0003] The early sludge treatment devices include plate and frame filter press, drum centrifuge and belt filter press. After dehydration by these equipment, the moisture content of the sludge is generally about 75%, and the moisture content of these sludges is still very high. For The transportation and cost are high, and it cannot be directly disposed of in the landfill. If it is placed for a long time, the germs surviving in the sludge will exceed the standard, and it will be perishable and produce stench, causing environmental pollution. [0004] There...
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IPC IPC(8): C02F11/121C02F11/13B01D50/00F25B6/02
CPCF25B6/02C02F11/12B01D50/20
Inventor 吴敏饶宾期卢锡龙张岩苏小雨
Owner 明阳(宁波)环保科技有限公司