Ammonia removal device for deep dehydration of municipal sludge

Abstract

The invention discloses an ammonia removal device for deep dehydration of municipal sludge, which comprises a reaction chamber and two supporting legs fixed to the lower wall of the reaction chamber,wherein a spiral conveyor is arranged on the side wall of one side of the reaction chamber in a communicating mode, a guide-out hole is formed in the lower wall of the reaction chamber in a communicating mode, and a sealing plug is arranged at the guide-out hole in a threaded mode. A motor box is fixedly arranged on the upper wall in the reaction chamber, a motor is fixedly arranged in the motor box, a rotating shaft is connected to the motor, the lower end of the rotating shaft penetrates through the motor box, a fan is fixedly arranged at the lower end of the rotating shaft, a grid frame isfurther transversely arranged in the reaction chamber, and the grid frame is arranged below the fan; and a waterproof breathable bag is arranged in the grid frame and is filled with a sodium chloridesolution. Ammonia gas emitted by sludge after conditioning is removed in time, and the emitted ammonia gas can be thoroughly absorbed and purified at the same time.

Description

technical field [0001] The invention relates to the technical field of sludge treatment, in particular to an ammonia removal device for deep dehydration of municipal sludge. Background technique [0002] The sludge deep dehydration process can account for 60% or more in the current sludge treatment and disposal process. The deep dehydration process requires sludge with a moisture content of 80%. The sludge after deep dehydration should meet the requirements of the "Sludge Disposal of Municipal Sewage Treatment Plant Mixed Landfill Mud" (GB / T 23485-2009), that is, the moisture content is ≤60%, and the shear strength is ≥25 kN / m² Indicators such as bacterial agents, live bacterial preparations made of beneficial microorganisms, are widely used in feed addition, organic material decomposing, soil improvement and restoration treatment, sewage purification treatment, etc. In the deep dehydration of municipal sludge, we often use Reduce the amount of bacteria to condition it; ...

AI Technical Summary

Problems solved by technology

[0003] The existing municipal sludge is deeply dewatered, and the pH of the conditioned sludge is as high as 11-12, which will cause a large amount of ammonia gas to be emitted in the conditioning area and filter press workshop, and the odor problem will seriously affect the environment and the safety of workers; at the same time, the conditioning The PH value of the final sludge reached 12, which caused environmental hazards after landfilling. For this, we propose a municipal sludge deep dehydration device for ammonia removal

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