Novel plate heat exchanger

Abstract

The invention relates to a novel plate heat exchanger and belongs to the technical field related to new energy. The novel plate heat exchanger mainly comprises a heat exchanger body and a slag filter communicating with the heat exchanger body. The slag filter is provided with a vertically arranged slag washing water inlet pipe. The left side of the slag washing water inlet pipe communicates with a first slag storage bin. The right side of the slag washing water inlet pipe communicates with a second slag storage bin. A supporting frame is installed on the slag washing water inlet pipe. A gearbox is arranged on the supporting frame and provided with a first output shaft, a second output shaft and a third output shaft. The first output shaft is connected with a first sealing plate. The second output shaft is connected with a filter screen frame. The third output shaft is connected with a second sealing plate. The first sealing plate, the filter screen frame and the second sealing plate are all located inside the slag washing water inlet pipe. The bottom of the first slag storage bin and the bottom of the second slag storage bin are both provided with slag discharging ports. By the adoption of the novel plate heat exchanger, slag in slag washing water can be filtered out, and meanwhile, the shutdown time caused by slag removal is greatly shortened.

Description

technical field [0001] The present invention relates to the technical field related to new energy, and specifically relates to a novel plate heat exchanger. Background technique [0002] In the iron and steel smelting process, the high-temperature slag is usually cooled by water flushing slag, so that the high-temperature slag becomes a recyclable raw material. During the slag flushing process, the water absorbs heat and becomes high-temperature slag flushing water. [0003] Using the heat of high-temperature slag-washing water for heating can reduce coal consumption and save water resources, which is a common way to reuse slag-washing water. However, because the slag flushing water contains slag and suspended fine particles, the slag flushing water must be filtered before heat exchange to avoid clogging the heat exchanger. [0004] The currently commonly used filter systems are generally two-stage filter or three-stage filter structure. That is, the slag is filtered thro...

AI Technical Summary

Problems solved by technology

However, manual slag removal generally takes 12 hours or even longer, so there is a disadvantage of intermittent insufficient heating

[0006] For some users who require high heat source continuity, stopping the hot water supply for a long time will cause greater losses

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