Temperature control sludge drying system

Abstract

The invention discloses a temperature control sludge drying system, comprising a dryer, a feeder, a discharger, a combustor, an intake line, a CHP waste gas line, a CHP wastewater circulation system, a gasifier, a steam line, an exhaust line, a temperature monitor probe, a humidity monitor probe, and a control cabinet. The temperature monitor probe and the humidity monitor probe are disposed in the dryer, a valve is disposed in front of an intake port of the intake line, the control cabinet acquires interior temperature and humidity of the dryer and controls the interior temperature and humidity of the dryer through a control valve,, the automation level is high, control precision is high, drying efficiency is high, drying effect is good, and energy utilization rate is high; the intake line is provided with a plurality of intake ports connected with blocked waste heat gas, and industrial waste heat is used to replace fuel combustion to generate heat, thus saving energy and reducing cost; the CHP wastewater circulation system heats gas in the intake line through the heat of wastewater, thus further saving energy.

Description

Technical field: [0001] The invention belongs to the technical field of sludge treatment equipment, in particular to a sludge drying system with temperature regulation. Background technique: [0002] At present, sludge disposal in large cities has become difficult and expensive, long-distance sludge haulage, fuel and transportation costs have increased, sludge landfills consume a lot of land resources, and costs have increased, wet sludge direct incineration is expensive, and because Due to problems such as smog, citizens opposed the construction of incinerators in the city. Sludge thermal drying is a safe, reliable, fast, efficient and large-scale sludge reduction technology. Sludge drying refers to the process of removing most of the water content from sludge through percolation or evaporation. After the sludge is thermally dried, the following effects can be achieved: the sludge is dried from 25% DS to 90% DS, the weight is reduced by about 78%, the product is easy to po...

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Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is that the drying efficiency of the sludge drying system in the prior art is low, the cost is high, the water vapor content in the dried flue gas is too high, and the drying equipment cannot be obtained during the drying process. If the temperature is too high, the drying efficiency cannot be improved, and energy is wasted. If the temperature is too low, the sludge cannot be fully dried, and the drying effect is poor. Therefore, a sludge drying system with temperature adjustment is proposed.

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