Heat energy and solar energy linkage sludge drying treatment equipment and process

Abstract

The invention discloses heat energy and solar energy linkage drying sludge treatment equipment and process, and belongs to the technical field of water supply cleaning. The heat energy and solar energy linkage drying sludge treatment equipment comprises a sludge discharge tank, a sludge concentration tank, a homogenizing tank, a dehydrator, a low-temperature drying machine and a dried sludge bin which are distributed in sequence, wherein the sludge discharge tank carries out primary precipitation and separation on the sludge in tap water;the sludge concentration tank makes the sludge subjected to primary precipitation and separation concentrated; thehomogenizing tank adjusts the pH value of the concentrated sludge; the dehydrator makes the sludge after pH adjustment mechanically dewatered; thelow-temperature drying machine makes themechanically dewatered sludge formed and dried and dewatered at low temperature; the dried sludge is collected by the dried sludge bin and is to be delivered and treated; the sludge with the original water content of 99.6%-99.2% is prepared into a sludge cake with the water content of 8%-12%; and the water separation volume of the sludge is large, the energy consumption of the device is low, the secondary pollution degree of the sludge is low, and the sludge is subjected to centralized recovery treatment and is convenient to manage and orderly consume.

Description

technical field [0001] The invention belongs to the technical field of water supply cleaning, and more specifically relates to thermal energy and solar energy linkage drying sludge treatment equipment and technology. Background technique [0002] In order to facilitate the further treatment and disposal of sludge, the Ministry of Environmental Protection Document No. 157 "Notice on Strengthening the Prevention and Control of Sludge Pollution in Urban Sewage Treatment Plants" stipulates that if the sludge is transported out of the industry for the purpose of storage (that is, without treatment and disposal), the sludge must be transported The mud is dehydrated to a moisture content below 50%. [0003] However, there is still a lack of deep dehydration equipment with low energy consumption, low additive dosage, large production capacity and continuous treatment of sludge. The plate and frame deep dehydration processors currently on the market can meet the relevant requireme...

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Problems solved by technology

[0003] However, there is still a lack of deep dehydration equipment with low energy consumption, low additive dosage, large production capacity and continuous treatment of sludge.

The plate and frame deep dehydration processors currently on the market can meet the relevant requirements in terms of dehydration, but their pressing time is long, they cannot discharge continuously, the processing capacity of a single device is small, the service life of the equipment is short, and the technology needs to be improved, etc. Disadvantages limit its further promotion and use

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