Film type drum dryer capable of efficiently discharging water

Abstract

The invention is applied to the technical field of drum dryers and provides a film type drum dryer capable of efficiently discharging water. The film type drum dryer comprises a film type drum body, an outer water collection device and a rotary joint seat, wherein a plurality of heat exchange tubes are arranged in the film type drum body; the outer water collection device is arranged at the exterior of the film type drum body and is used for collecting condensed water in the film type drum body and the heat exchange tubes and outputting the condensed water to the rotary joint seat; the outer water collection device is connected with the rotary joint seat through a water returning pipe; a check valve is mounted on the water returning pipe; the rotary joint seat is mounted on the film type drum body and is used for outputting steam to the heat exchange tubes and receiving the condensed water. The film type drum dryer has the beneficial effects that the check valve is arranged and is capable of enabling the flowing path of the condensed water to be clear and preventing the flow from mixing and returning, the water discharging efficiency is obviously improved, the rotary joint seat ismore stable during operation, the service life of the dryer is ensured, the pre-reserved space is large, and the maintenance staff can enter the film type drum dryer more conveniently and quickly.

Description

technical field [0001] The invention relates to the technical field of drum dryers, in particular to a high-efficiency drainage membrane drum dryer. Background technique [0002] As a kind of equipment with high drying efficiency for wet materials, membrane drum dryer is widely used in electric power, chemical industry, mining, energy, municipal, pharmaceutical and other industries. The membrane cylinder itself has the ability to heat and dry, and can withstand large steam pressure. The source of drying energy for the dryer is the medium-temperature and medium-pressure steam provided by the boiler. During the drying process, the steam is cooled to generate condensed water, which accumulates at the bottom of the water collection tank at the discharge end of the drum and needs to be discharged in time to meet the cycle of the dryer. heat transfer requirements. [0003] At present, the drainage mode of the dryer is to use three curved steel pipes, which are evenly arranged at...

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Problems solved by technology

[0003] At present, the drainage mode of the dryer is to use three curved steel pipes, which are evenly arranged at a certain angle. After the cylinder rotates to a certain height, the water is discharged into the rotary joint by gravity. During this process , because the pipeline circulates everywhere, part of the water will flow back into the pipeline due to gravity, which greatly reduces the drainage efficiency

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