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Heat pump coupled adsorption type closed system for drying sludge

An adsorption drying and adsorption system technology, which is applied in dehydration/drying/concentrated sludge treatment, steam condensation, and separation of dispersed particles, can solve secondary environmental pollution and other problems, reduce operating costs, improve efficiency, and expand the scope of application wide range of effects

Pending Publication Date: 2018-05-25
SUNNY ENVIRONMENTAL PROTECTION JIANGSU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The malodorous gas will be absorbed by the hygroscopic agent, then desorbed by the regeneration medium, and discharged into the external environment along with the regeneration medium, causing secondary environmental pollution

Method used

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  • Heat pump coupled adsorption type closed system for drying sludge
  • Heat pump coupled adsorption type closed system for drying sludge
  • Heat pump coupled adsorption type closed system for drying sludge

Examples

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Embodiment Construction

[0033] A heat pump coupled adsorption drying sludge method in this embodiment consists of a heat pump system refrigerant circulation loop, an adsorption system regeneration air circulation loop and an air circulation loop for drying sludge. The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0034] Such as figure 1 , 2 , 3, the thick line represents the refrigerant circulation circuit, the thin line represents the regeneration air circulation circuit, and the dotted line represents the drying air circulation circuit. All three media circulate in a clockwise direction.

[0035] The refrigerant circulation loop includes compressor 1, three-way regulating valve 2, condenser A3, condenser B4, liquid receiver 5, expansion valve 6, and evaporator 7; the refrigerant pipeline at the outlet of compressor 1 passes through the three-way regulating valve 2. Connect with condenser A3 and condenser B4; the pipeline at the...

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Abstract

The invention discloses a heat pump coupled adsorption type closed system for drying sludge. The structure of the system comprises three closed loops, namely a heat pump system refrigeration working medium circulation loop, an adsorption system regenerated air circulation loop and an air circulation loop for drying sludge. The heat pump system refrigeration working medium circulation has the effects of dehumidifying and heating the air for drying sludge, so that the air continuously performs circulation of a sludge drying process, a dehumidifying process and a heating process. A heat pump system utilizes the recovered condensation heat to heat the air for drying sludge. An adsorption system adopts a fixed bed, rotating wheel or moving bed adsorption device to dehumidify the air for dryingsludge for the second time so as to enhance the efficiency of the sludge drying process, and utilizes regenerated air to perform desorption treatment on the adsorption device saturated with water, thereby realizing continuous and uninterrupted operation of the adsorption system. The adsorption system adopts a cooling mode to dehumidify the high-humidity regenerated air, and simultaneously utilizesthe waste heat of the heat pump system as a unique heat source for heating the dehumidified regenerated air, so that the regenerated air continuously performs circulation of an adsorption device desorption process, a dehumidifying process and a heating process. The device is of a fully-closed structure, and both the adsorption system regenerated air circulation loop and the air circulation loop for drying sludge do not discharge any gas.

Description

[0001] manual technical field [0002] The invention relates to a closed system for drying sludge by using a heat pump coupling adsorption dehumidification treatment air. Specifically, it can be said that three medium circulation loops are adopted: a refrigeration working medium circulation loop, a hygroscopic agent regeneration medium circulation loop and a drying medium circulation loop. A combined airtight sludge drying system belongs to the technical fields of heat pump dehumidification technology, adsorption dehumidification technology and sludge drying technology. Background technique [0003] Domestic sewage and industrial wastewater treatment plants produce a large amount of sludge. In order to reduce transportation costs, landfill costs, fuel costs, investment in treatment and disposal facilities, etc., it is necessary to reduce the amount at the lowest cost. The most economical reduction measure is usually mechanical dewatering. Due to complex reasons such as the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/12C02F11/16B01D5/00B01D53/00B01D53/02B01D53/26
CPCB01D53/002B01D53/02B01D53/26C02F11/12C02F11/16Y02P70/10
Inventor 邹剑邹剑雄张建军李傲
Owner SUNNY ENVIRONMENTAL PROTECTION JIANGSU CO LTD
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