Sequencing batch type deep dehydration belt machine

Abstract

The invention discloses a sequencing batch type deep dehydration belt machine. The sequencing batch type deep dehydration belt machine comprises: a filter cloth transmission mechanism which is annularly arranged on a rack; a slitting and distributing device which is arranged on the rack and is positioned at a feeding hole in the front end of the filter cloth transmission mechanism; a hydraulic filter pressing mechanism which is arranged on the rack, wherein the end part of each filter plate of the hydraulic filter pressing mechanism is provided with a roll shaft; a filter cloth of the filter cloth transmission mechanism, wherein the filter cloth is wound by each roll shaft at the end part of each filter plate and clings to the surface of each filter plate of the hydraulic filter pressing mechanism; a filter cloth cleaning assembly which is arranged on the rack, corresponds to the filter cloth of the filter cloth transmission mechanism in position and can clean the filter cloth; and a discharge mud scraping assembly which is arranged at a discharge port at the rear end of the filter cloth transmission mechanism. The dehydration belt machine is good in dehydration effect, long in service life of the filter cloth, small in flushing water amount and high in treatment efficiency.

Description

technical field [0001] The invention relates to the field of dehydration equipment, in particular to a sequential batch deep dehydration belt machine. Background technique [0002] The working principle of the continuous deep dehydration belt machine is: the solid form dewatered sludge with a moisture content of about 80% is firstly conditioned by a mixing agitator and auxiliary materials (mainly including lime, fly ash, iron salt, aluminum salt or other conditioning agents, etc. Materials) are mixed, stirred, conditioned and modified, and the conditioned and modified sludge is dehydrated under the mechanical extrusion of a belt filter press, and the amount of detached water is controllable, usually 60-70%. [0003] In this technology, a twin-screw machine is used for conditioning and modification, and it is conveyed while stirring. The outlet is the mud inlet of the belt filter press. The mud cake extrusion force of the belt filter press comes from the tension of the filter...

AI Technical Summary

Problems solved by technology

[0005] (1) Since the extrusion force of the mud cake comes from the tension force of the filter cloth, but the strength of the filter cloth is limited by the material of the filter cloth, the tension force of the filter cloth has a bottleneck, and there is a problem of insufficient mud cake extrusion force

[0006] (2) Since the filter cloth provides extrusion force and also has the function of filtering, the form of the filter cloth is limited. Usually, the silk thread is thick and there are large gaps, and the sludge is easily lost from the gap, resulting in a large amount of sludge loss. The problem

[0007] (3) Due to the large gaps in the filter cloth, the sludge is easily blocked in the gaps and the water channel is blocked. Therefore, the filter cloth must be rinsed continuously during work, resulting in a very large amount of flushing water

[0008] (4) Because the filter cloth bears a very large ultimate tensile force, the filter cloth is usually easily damaged, which makes the life of the filter cloth shorter, resulting in higher replacement costs for the filter cloth

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