Airflow jetting equipment for drying slurry and paste

Abstract

A jet fluid and paste material drying treatment apparatus comprises a feed conveying system, a disintegrating-drying chamber, a gas-solid two-phase delivery separating system. The rough separating is conducted in the reverse U-shaped tube set at the upper part of the disintegrating-drying chamber connected to the lower mouth of the reverse U-shaped tube. The vertical tube, far from the material feed mouth, of the reverse U-shaped tube is used as gas-solid delivery tube, and the vertical tube, near to the material feed mouth, is used as material return mouth. At the upper part of said vertical tube near to the material feed mouth is provided wiht a gas-solid rough separation region with an outlet connected to the gas-solid separation system.

Description

technical field [0001] The invention relates to a jet air slurry and paste material drying treatment equipment, in particular to a drying treatment equipment for sludge deposited after sewage treatment and lake silt. Background technique [0002] In my country, sewage treatment, especially urban sewage treatment, has just started, and the quantity and scale are small, and the sludge settled after sewage treatment is seldom retreated. If this sludge is not treated, it will cause secondary pollution to the environment and groundwater. But this kind of sludge contains a lot of organic components. If it is treated and utilized, it can become a good organic fertilizer and has many advantages. And after the sludge is dried, it can also be used as raw materials for fuel, building materials products, papermaking and other industries. [0003] At present, there are mainly two methods for sludge in China: one is to dry naturally, that is, to accumulate in an ...

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Problems solved by technology

[0003] At present, there are mainly two methods for sludge in China: one is to dry naturally, that is, to accumulate in an open area; the other is to make sludge compost, to mix and accumulate sludge with urban garbage, straw, etc., to make it ferment , and then used as agricultural fertilizer, the disadvantages of the above method are that it takes a long time, takes up a lot of land, is labor-intensive, and pollutes the environment and groundwater. The fertilizer formed cannot be packaged, is not easy to transport, and cannot form a commodity

[0004] At present, some people in China try to dry the sludge, but the disadvantages are high energy consumption, uneven drying, and the loss of organic components in the dried sludge, so it is not easy to meet the needs of the market.

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