Belt type strong force squeezing dewatering machine

Abstract

The invention provides a belt type strong force pressing dehydrator, which comprises an upper cyclical delivery network belt and a lower cyclical delivery network belt. The dehydrator comprises a plurality of strong force press roller groups, the strong force press roller group comprises a press roller and a supporting roller which supports the pressure of the press roller, the upper cyclical delivery network belt and the lower cyclical delivery network belt pass through between the press roller and the supporting roller; an annular groove is arranged at the both sides close to the supporting roller, two sides of the upper cyclical delivery network belt and the lower cyclical delivery network belt are extended to the annular groove, the dehydrator is provided with a device which is matched with the annular groove and leads the upper cyclical delivery network belt and the lower cyclical delivery network belt at the position of the annular groove to be pressed and bent. The pressing force of the press roller in the strong force press roller group of the invention can adopt the high pressing force multiple times higher than pressing force of the more ordinary belt type pressing dehydrator, thereby greatly improving the pressing efficiency. The moisture content of the treated sludge is decreased to 60 percent, and the sludge can be directly and conveniently buried, and the sludge with higher calorie value which is not required to be dried up can be mixed with the fuel to be used, thereby avoiding the second environment pollution. Moreover, the invention can greatly save the transportation expenses of the sludge, and the economic efficiency is extremely obvious.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to dewatering equipment for sludge in sewage. Background technique [0002] Sewage treatment is an important part of environmental protection, and a large amount of sludge will be produced in sewage treatment. At present, the sludge is dewatered through a drum centrifuge or a belt press filter. These two types of equipment are difficult to use high press pressure and centrifugal pressure, and the filtration efficiency is not high. The moisture content of the dehydrated sludge is generally still 75% to 80%. %. Most of the dehydrated sludge is transported to landfill, and a small part of sludge with high calorific value is added to coal for combustion after being dried in the sun. Among them, the sludge transported to the landfill has a relatively high moisture content, and the bulldozer is stuck in the wheel when it is working, so it cannot be landfilled. It takes a long t...

AI Technical Summary

Problems solved by technology

Among them, the sludge transported to the landfill has a relatively high moisture content, and the bulldozer is stuck in the wheel when it is working, so it cannot be landfilled. It takes a long time to dry, causing mosquitoes and flies to breed and pollute the environment. Therefore, many landfills are unwilling to accept it. Sludge treatment has become an urgent problem to be solved

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