Belt drying device with screening function

Abstract

The invention discloses a belt drying device with a screening function. The belt drying device comprises a cabinet. The cabinet is divided into three cabinet chambers by two vertical separation plates. The three cabinet chambers are a feeding chamber, a screening chamber and a drying chamber from left to right sequentially. A screening mechanism comprises a screening shell, a vibration motor and ascreening sieve. The vibration motor is mounted at the bottom of the screening chamber. The bottom of the screening shell is connected with the vibration motor. The vibration motor drives the screening shell to vibrate. Sewage is classified according to the size of particles. Due to long drying time, the sewage with the large particles is classified to a first drying net belt to be dried sufficiently; due to short drying time, the sewage with the small particles is classified to a third drying net belt to avoid excessive drying; classified recycling of finished products (dried sewage) is realized.

Description

technical field [0001] The invention relates to the field of sludge treatment, in particular to a belt drying device with screening function. Background technique [0002] Sludge treatment mainly includes sludge pressing into lumps and sludge drying. At present, the thermal drying method is often used to dry the sludge, that is, the water in the sludge is evaporated by using heat energy, and the dried sludge is in the form of particles or powders. The high-temperature sterilization effect of the thermal drying process can effectively inhibit the mold of the sludge smell. [0003] The belt drying device adopts the heat drying method to dry the sludge on the conveyor belt through hot air. However, in the existing sludge drying operation, the sludge is often directly put into the belt drying device for drying, and the sludge with smaller particles and the sludge with larger particles are mixed and dried together. In this way, in order to make the sludge with larger particles ...

AI Technical Summary

Problems solved by technology

However, in the existing sludge drying operation, the sludge is often directly put into the belt drying device for drying, and the sludge with smaller particles and the sludge with larger particles are mixed together to dry, so that in order to make the sludge with larger particles The sludge is fully dried, which requires a long conveyor belt and a long enough drying time, which leads to excessive drying of the sludge with small particles, which makes the sludge with small particles harden or coke, and the recycling value is reduced

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