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Air energy drying device for sludge

An air energy, air energy heat pump technology, applied in sludge treatment, water/sludge/sewage treatment, sludge treatment through temperature control, etc., can solve high room temperature, insufficient sludge reduction, heat loss, etc. problem, to achieve the effect of high calorific value of sludge

Pending Publication Date: 2018-12-25
光大水务科技发展(南京)有限公司
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a sludge air energy drying device to solve the problem of insufficient sludge reduction degree, insignificant dehumidification effect and unnecessary waste caused by heat loss during the drying process in the existing sludge drying technology , and at the same time cause the technical problem of too high room temperature

Method used

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  • Air energy drying device for sludge
  • Air energy drying device for sludge

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Embodiment

[0045] Take an urban sewage treatment plant as an example (a sewage volume of 10,000 tons / day), the moisture content of the sludge at the outlet of the centrifugal dehydrator is about 80% (sludge output is about 6t / d), and the sludge is sent to In the sludge buffer silo, the sludge silo has a volume of 12m 3 , Maintain 2d effective volume. The silo is equipped with a shaftless screw to prevent the sludge from being bridged in the silo, and is transported to the air energy drying equipment through the sludge pump.

[0046] The air energy drying equipment is a continuous operation mode, mainly including the mesh belt machine part and the heat pump unit system. A sludge cutting and forming machine is installed on the top of the mesh belt machine. The cutting and forming machine is in the form of a two-axis pair of rollers. The sludge is cut to 6-8mm. An arch breaking device and a level gauge are arranged on the upper part of the cutting machine. The meter is connected to the PCL sy...

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Abstract

The invention provides an air energy drying device for sludge. The air energy drying device for the sludge comprises a net tape machine and an air energy heat pump system which are coupled to each other; at least three layers of net tapes are arranged in the net tape machine; each net tape comprises a top-layer net tape and a bottom-layer net tape; a first circulating air outlet, a first dehumidifying air outlet and a second dehumidifying air outlet are formed in the upper portion of the top-layer net tape; a first circulating fan is arranged at the position of the first circulating air outlet; a first dehumidifying fan is arranged at the position of the first dehumidifying air outlet; a second dehumidifying fan is arranged at the position of the second dehumidifying air outlet; a circulating air returning opening is formed in the upper portion of each bottom-layer net tape; a first dehumidifying air returning opening is formed in the lower portion of each bottom-layer net tape; and the air energy heat pump system comprises a circulating air duct, a first dehumidifying air channel and a compressor unit. The air energy drying device for the sludge is high in sludge reduction degreeand remarkable in dehumidifying effect.

Description

Technical field [0001] The invention belongs to the technical field of sludge drying, and more specifically, relates to an air-energy drying device for sludge. Background technique [0002] The treatment and disposal of urban sewage sludge includes the requirements for sludge stabilization, reduction, harmlessness and resource utilization; among them, sludge reduction is the core link of sludge treatment, and the main goal is to reduce the water in the sludge. Current key difficulties in sludge treatment and disposal; methods for sludge reduction include mechanical dehydration, thermal drying, etc.; in the process of sludge treatment and disposal, there are a combination of multiple processes. Mechanical dehydration methods include chamber filter presses, membrane filter presses, belt filter presses, etc. Among them, membrane filter presses and belt filter presses are the main ones. Due to the high viscosity of sewage sludge after biochemical treatment, conventional pressure The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/12C02F11/18C10L5/46F25B30/02F25B30/06
CPCF25B30/02F25B30/06C10L5/46C02F11/12C02F11/121C02F11/18C02F2103/001Y02E50/10Y02E50/30
Inventor 何志锋袁博威牛涛梁华杰安平林王冠平罗智宇
Owner 光大水务科技发展(南京)有限公司
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