Stirring blade structure of sludge drier

Abstract

The invention provides a stirring blade structure of a sludge drier. The stirring blade structure is suitable for a hollow paddle type sludge drier. The stirring blade rotates with a hollow thermal shaft as the axis and also makes reciprocating translation motion along the hollow thermal shaft, and therefore sludge adhering to the thermal contact surface of the hollow thermal shaft can be removed in time; the blade also has torsional vibration function, so that adhesion of sludge on the surface of the blade can be reduced, stirring intensity can be improved, and caking of sludge can be inhibited; the stirring blade structure is driven through circulation of smoke generated from sludge incineration, the utilization efficiency of combustion smoke is improved, driving load of a hollow thermal shaft motor is not increased, the space of a sludge delivery channel is not reduced, and accidental jamming and machine breakdown do not occur easily.

Description

technical field [0001] The invention relates to the technical field of sludge treatment, in particular to a stirring paddle structure applied to a sludge dryer. Background technique [0002] Sludge is an important pollution output formed in industrial and agricultural production and urban life. will produce sludge. Sludge contains a large number of harmful microorganisms, heavy metals and organic pollutants. If not properly disposed of, it will have a serious negative impact on the natural environment and people's health. [0003] Sludge incineration is to make the combustible substances in sludge burn at high temperature and make them oxidatively decompose, so as to achieve the purpose of reducing sludge capacity, killing harmful microorganisms, removing toxicity and making full use of energy. Sludge incineration is a widely used and mature sludge high-temperature treatment technology in foreign countries. It can minimize the volume of sludge, and has the advantages of fa...

AI Technical Summary

Problems solved by technology

[0009] However, the installation of these additional crushing structures will increase the driving load on the hollow thermal shaft, or require an additional drive motor to increase the equipment cost; and the effective range of the crushing structure is limited, and the entire hollow thermal shaft cannot and each paddle can eliminate the adhesion of sludge; the existence of these additional broken structures reduces the channel space for sludge slurry transportation and increases the obstruction of sludge slurry delivery; due to the smaller channel space, encountering When larger and harder sludge lumps are mixed in the sludge slurry, it is easy to cause jamming or strong vibration of the equipment, and even endanger the normal operation of the entire system

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