Air returning, dehumidifying and heating device of sludge drying equipment

A technology of sludge drying and heating device, which is applied in drying gas arrangement, lighting and heating equipment, dewatering/drying/concentrating sludge treatment, etc., can solve the problem of poor dehumidification effect, etc. rate increase effect

Pending Publication Date: 2020-11-03
无锡德华仕环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to ensure the efficiency of sludge drying, the wind in the dryer will always be in a circular motion. In the prior art, only through the cooperation of the evaporator and the condenser, the speed of the wind passing through the evaporator and the condenser is fast, and the water in the air Most of the parts still leave with the air, resulting in the actual dehumidification effect is not good

Method used

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  • Air returning, dehumidifying and heating device of sludge drying equipment

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Embodiment

[0019] Embodiment: a return air dehumidification heating device for sludge drying equipment, such as figure 1 As shown, it includes a normal temperature coil 2, an evaporator 3, a condenser 4 and a compressor 5 through which the return air passes sequentially. The normal temperature coil 2 is provided with a cooling pipe 21 for supplying water to the external cooling tower, and the evaporator 3 is provided with There is a pipeline 31 for cooling and evaporating, and a condenser coil 41 is installed in the condenser 4. The air is cooled by the evaporator 3 to condense the humid air and then enters the condenser coil 41 to be heated, and the gas in the condenser coil 41 releases heat Return to the pipeline 31 after liquefaction.

[0020] The humid air passing through the sludge drying equipment is sent into the normal temperature coil 2, and the temperature of the humid air drops below the dew point temperature, and part of the moisture in the humid air will condense into water ...

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PUM

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Abstract

The invention relates to sludge drying equipment which has the effect of a high dehumidification rate. The invention discloses an air returning, dehumidifying and heating device of sludge drying equipment. The device comprises a room-temperature coil pipe, an evaporator, a condenser and a compressor which are sequentially communicated, wherein a cooling pipe for water to flow is arranged in the room-temperature coil pipe, a pipeline for condensate to flow is arranged in the evaporator, and a condenser coil pipe is arranged in the condenser. Condensate in the evaporator is gasified and then enters the condenser coil pipe, and gas in the condenser coil pipe releases heat, is liquefied and then returns to the pipeline again. By means of cooperation of the room-temperature coil pipe and the evaporator, secondary dehumidification of wet air is achieved, and the dehumidification rate is increased.

Description

technical field [0001] The invention relates to a sludge drying equipment, more specifically, it relates to a return air dehumidification heating device of the sludge drying equipment. Background technique [0002] In recent years, with the strengthening of water pollution control in my country, the scale of urban sewage treatment has continued to grow. At present, the amount of sludge (dry weight) discharged by urban sewage treatment plants in my country is about 9 million tons per year, and it is increasing at a rate of more than 10%. The annual growth rate increases. [0003] The patent with announcement number CN209619162U and publication date 2019-11-12 discloses a low-temperature dehumidification sludge dryer, including a drying box, a heat pump, a drying chamber at the front of the drying box, and a multi-layer drying chamber Wet mud conveyor belt, the rear of the drying box is provided with an air inlet room and an air outlet room, the air inlet room is located below...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/13F26B21/08F26B21/10
CPCC02F11/13F26B21/08F26B21/10
Inventor 谢琳华
Owner 无锡德华仕环境科技有限公司
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