System and process for producing carbon mud by anaerobic cracking of sludge

Abstract

The invention discloses a system and a process for producing carbon mud by anaerobic cracking of sludge. The system comprises a sludge sucking device, an impurity removing device, a dehydration device, a material conveying device, an anaerobic cracking carbonizing device, a water feeding device and a water discharging device. The anaerobic cracking carbonizing device comprises a converter body, a sludge feeder, a mixed gas processing device, a tail gas treatment device, a biomass particle combustion device and a carbon mud cooling device; the sludge feeder comprises a feed hopper and a screw conveyor mechanism. The impurity removing device comprises a vibrating grid; impurity is recovered and conveyed to the sludge feeder, and sludge is conveyed to the dehydration device through a pipeline. The dehydration device comprises a sludge pelletizer or filter press. The system and the process have the advantage of reasonable design, realize harmless treatment, reduction and recycling of sludge, and further realize technical effects that stacking sludge on floor is avoided, garbage moving is omitted, large space occupation for sludge conveying is avoided, and product recycling is achieved in sludge disposal.

Description

technical field [0001] The invention relates to the technical field of sludge treatment, in particular to a system for producing carbon mud by anaerobic cracking of sludge. Background technique [0002] In the prior art, silt needs to be processed in three steps, silt cleaning, silt disposal, and silt absorption; in the process of silt cleaning, it has a greater impact on the aquatic environment and organisms, and it is prone to over-excavation or under-excavation. The dams cause harm; in the process of sludge disposal, the existing technology needs to be dehydrated and solidified, and then the storage yard is selected for pressure filtration. During the process of sludge solidification, more harmful gases and filtrates are produced, and the smell is overwhelming, which has a great impact on the surrounding environment and is easy to Produce secondary pollution and heavy metal pollution; silt disposal, the silt of the prior art is generally piled nearby after disposal, and i...

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Problems solved by technology

[0002] In the prior art, silt needs to be processed in three steps, silt cleaning, silt disposal, and silt absorption; in the process of silt cleaning, it has a greater impact on the aquatic environment and organisms, and it is prone to over-excavation or under-excavation. The dams cause harm; in the process of sludge disposal, the existing technology needs to be dehydrated and solidified, and then the storage yard is selected for pressure filtration. During the process of sludge solidification, more harmful gases and filtrates are produced, and the smell is overwhelming, which has a great impact on the surrounding environment and is easy to Produce secondary pollution and heavy metal pollution; silt disposal, the silt of the prior art is generally piled nearby after disposal, and is generally used for backfilling roadbeds or land reclamation from the sea or as bricks and ceramsites, etc., the consumption of the market Poor capacity, low resource utilization efficiency, and requires a lot of storage space

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