Automatic assembly line and process of low pressure heat and dry treatment of wet sludge

Abstract

The invention relates to an automatic assembly line and process of low pressure heat and dry treatment of wet sludge, wherein the automatic assembly line comprises a rack, a cake discharging opening and a drying room; a first gate and a second gate are arranged in the cake discharging opening, and a plurality of supports, a plurality of trays, a plurality of feeding openings, a plurality of discharging openings, a plurality of sealing doors and a plurality of conveying devices are arranged in the drying room; a first U-shaped conveying device, a first conveying device, a first lifting device,a second U-shaped conveying device, a second conveying device, a second lifting device and a transferring device are arranged on the rack; a collecting box is arranged obliquely below the transferringdevice, and a scraping device is arranged on the transferring device. Full-automatic feeding and discharging of mud cake fragments are achieved; and compared with feeding modes of workers and forklifts, the drying efficiency of the wet sludge is greatly improved. The drying efficiency of the wet sludge is greatly improved.

Description

technical field [0001] The invention relates to the technical field of wet sludge treatment, in particular to a fully automatic assembly line and process for low-pressure heat-dry treatment of wet sludge. Background technique [0002] National sewage treatment plants discharge more than 5 million tons of wet sludge every year. A large amount of sludge that has not been stabilized and harmlessly treated has become a heavy burden on sewage treatment plants, and at the same time it has caused secondary pollution to the environment. In order to facilitate the transportation, storage and processing of sludge, the sludge after preliminary dehydration must be further dried to reduce the volume of sludge and transportation management costs, and to create more resources for the next step of reuse (such as fuel, building materials, etc.) condition. Therefore, the dehydration treatment of sludge is very necessary. [0003] Through retrieval, Chinese Patent Publication No. CN10120511...

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Problems solved by technology

[0006] The above two existing technical solutions have the following defects: in order to ensure the drying efficiency of the wet sludge, the area of ​​the material tray will be larger, so there will be more mud cake fragments on the material tray. At this time, it is necessary to The forklift comes to put the material tray with mud cake fragments into the transparent glass shell

These two feeding methods are time-consuming and labor-intensive. Not only is the feeding process complicated, but it will be quite inconvenient for workers to put the material trays with mud cake fragments into the transparent glass shell through a forklift, resulting in the drying of wet sludge. Not very efficient, so need to improve

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