Sludge mixer with feeding pressure monitoring function

Abstract

The invention relates to a sludge mixer with a feeding pressure monitoring function. The sludge mixer comprises a mixing kettle, wherein the mixing kettle is provided with a muddy water feeding pipe and a muddy water discharging pipe; a stirring device is arranged in the mixing kettle, the muddy water feeding pipe is arranged at the bottom of one side of the mixing kettle, and the muddy water discharging pipe is arranged at the top of the other side of the mixing kettle; the stirring device comprises a stirring shaft arranged in the mixing kettle in an inclined manner, and the stirring shaft is arranged between the muddy water feeding pipe and the muddy water discharging pipe; the stirring shaft is provided with a hollow structure, blades and deflector holes are arranged in the side wall at intervals, and the defector holes are arranged between adjacent blades respectively; a flocculating agent feeding pipe is arranged at the upper end of the stirring shaft, the upper end of the stirring shaft is connected with a motor by virtue of a bevel gear component, and the motor is arranged on the top surface of the mixing kettle by virtue of a support; and a pressure monitor is arranged in the muddy water feeding pipe, the pressure monitor is connected with the motor by virtue of a controller, and the controller controls the rotating speed of the motor according to a pressure signal monitored by the pressure monitor.

Description

technical field [0001] The invention relates to the technical field of environmental protection equipment, in particular to a sludge treatment device. Background technique [0002] Before sludge dehydration, sludge conditioning should be carried out. The so-called sludge conditioning is also called chemical conditioning of sludge. Sludge concentration generally can only reduce the water content to about 85%. To further reduce the water content and volume, it is necessary to separate the bound water in the sludge, that is, to weaken the adhesion of this part of water to solid particles. Make the particles unstable and grow up. The common practice now is to set up a sludge conditioning tank before the sludge filter press to chemically condition the sludge, and add organic and inorganic flocculants such as ferric chloride and lime. 5-10min. However, the sludge conditioning tank occupies a relatively large area and investment, and the mixing of flocculant and sludge generally...

AI Technical Summary

Problems solved by technology

However, the sludge conditioning tank occupies a relatively large area and investment, and the mixing of flocculant and sludge generally uses a low-speed paddle agitator or a hyperboloid agitator, and the mixing effect is not ideal.

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