Swirl spouting device for drying sludge

Abstract

The sludge drying cyclonic spouting apparatus includes main tower body, air chamber, driving shaft and drying and stirring paddle. The air chamber is set in the lower part of the main tower body, drying and stirring paddle is set onto the driving shaft, the air chamber has tangent air inlet port and bottom with W-shaped axial section, and the main tower body over the W-shaped bottom of the air chamber with its lower part extending into the air chamber, and has material feeding port and air outlet port in the upper part as well as tangent air exhaust port and air inlet port rotating in the same direction. The present invention has the high tightness, high drying efficiency, low power consumption, sterilization effect, no jamming and simple apparatus.

Description

Technical field [0001] The invention relates to a drying device, in particular to a swirling spray device for drying sludge used for treating sludge. Background technique [0002] At present, most of the drying of sludge uses drum dryers or fluidized bed dryers. Tumble dryers mainly have the following technical problems: 1. It is easy to leak into the air and increase the oxygen content of the drying medium. For the drying of sludge with similar combustion performance but higher volatility than lignite, it increases the possibility of deflagration. Sex. 2. It is easy to stick to the wall, and the sludge is highly viscous, and it is very easy to stick to the wall of the drum, which will affect the drying efficiency and even make the equipment unable to operate normally. 3. The device is huge, the heat dissipation loss is large, and the drying heat efficiency is low. The airtightness of the fluidized bed dryer is better than that of the tumble dryer, but...

AI Technical Summary

Problems solved by technology

The rotary drum dryer mainly has the following technical problems: 1. It is easy to leak air, which increases the oxygen content of the drying medium. For the drying of sludge whose combustion performance is similar to that of lignite and its volatility is higher than that of lignite, it increases the possibility of deflagration. sex

2. It is easy to stick to the wall. The sludge has strong viscosity and is easy to adhere to the wall of the drum, which will affect the drying efficiency and even cause the equipment to fail to operate normally.

3. The device is huge, the heat dissipation loss is large, and the drying heat efficiency is low

The airtightness of the fluidized bed dryer is better than that of the rotary drum dryer, but it is generally used for the drying of less viscous sludge (such as general municipal sewage sludge), and for the drying of more viscous sludge (such as Biochemical sludge) often adopts the technology of first granulation and then drying, the equipment cost is high and the system is complicated

And its drying rate is not large, the intake temperature cannot be too high, and the drying heat efficiency is also low

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