Sludge continuous-heat-treatment modification device and technology of deep dehydrating, drying and incineration

Abstract

The invention relates to a sludge continuous-heat-treatment modification device and a technology of deep dehydrating, drying and incineration. The sludge continuous-heat-treatment modification device comprises sludge conveying tubes and heat medium spacing casing tubes, wherein the sludge conveying tubes comprises a preheating section, a reacting section and a cooling section, and the sludge conveying tubes of all the preheating section, the reacting section and the cooling section are sleeved by the heat medium spacing casing tubes; the heat medium spacing casing tube of the reacting section communicates with a heat medium heating converter to form a first heat medium circulating loop; the heat medium spacing casing tube of the preheating section communicates with the heat medium spacing casing tube of the cooling section to form a second heat medium circulating loop; and a heat medium heat recovery circulating pump is arranged in the second heat medium circulating loop. The sludge continuous-heat-treatment modification device uses a heat medium to perform indirect heat treatment on sludge and improves the dehydrating property of the sludge, therefore the sludge continuous heat treatment is realized and the recycling use of the heat medium saves more energy and is more friendly to environment at the same time.

Description

technical field [0001] The invention relates to a sludge continuous heat treatment modification device and a deep dehydration drying incineration process. Background technique [0002] Sludge thermal hydrolysis is a simple and efficient sludge pretreatment method. The current sludge thermal hydrolysis technology adopts the technological process of sludge slurry homogenization, reactor cooking and flash evaporation. In the prior art, sludge In the reaction kettle, it is usually heated to a certain temperature, and then heat treatment is performed under the action of the agitator, which is usually a batch treatment, and, because the sludge viscosity is too high, the residence time in the reaction tank is usually prolonged, hot water The solution processing time is extended, which will affect the time of sending it into the reaction tank in the later stage. Sending it directly into the reaction tank will undoubtedly increase the difficulty of sludge mixing and the energy consum...

AI Technical Summary

Problems solved by technology

Time-consuming and energy-intensive

[0005] As disclosed in the prior art CN101830622B, a method for treating sludge or organic waste, the main steps of sludge treatment are successively through a homogenizing tank, a reaction tank and a flash tank, and the sludge needs to stay in each tank for a certain period of time. The intermittent treatment method is not conducive to improving production efficiency, and the connection and switching of the valves of each tank are frequent, the valve damage rate is high, and the service life is short

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