Blast furnace slag flushing water heat exchanger on-line cleaning device

Abstract

A blast furnace slag washing water heat exchanger online washing device comprises a ball storage tank, a rubber ball recirculating pump and matched pipelines and valves. A retaining plate controlled by a retaining plate handle is disposed in the ball storage tank. The retaining plate is used for controlling receiving and sending of small balls. A slag washing water inlet pipe of a heat exchanger is connected to a ball sending valve through a branch pipeline. The other end of the ball sending valve is sequentially connected with the rubber ball recirculating pump and the ball storage tank. The pipeline at the other end of the ball storage tank is branched and respectively connected with a forward ball receiving valve and a reverse ball receiving valve. Each of the forward ball receiving valve and the reverse ball receiving valve is connected with the slag washing water outlet pipe through a branch pipeline. A ball receiving net for receiving the small balls is disposed in the slag washing water outlet pipe. The forward and reverse direction of the ball receiving net are controlled by a ball receiving net handle. The washing device has the advantages that the problem of heat exchanger shutdown washing is solved, work efficiency of heat exchangers is increased, slag washing water waste heat recycling efficiency is increased, an automatic washing function is added, the service life of the washing device is prolonged, and work efficiency of the washing device is increased.

Description

technical field [0001] The invention relates to a cleaning device, in particular to an online cleaning device for a blast furnace slag flushing water heat exchanger. Background technique [0002] As the energy shortage becomes more and more serious, the utilization of secondary energy is becoming more and more important. The recovery of waste heat from blast furnace slag flushing water in iron and steel plants is becoming more and more extensive, but there is still a large amount of dross in the slag flushing water, which is used for heat exchange. After working for a long time, the heat exchanger will be fouled and blocked. Most of the current cleaning methods and devices need to shut down the heat exchanger, which seriously affects the working efficiency of the heat exchanger. Contents of the invention [0003] The invention aims to provide an online cleaning device for a blast furnace slag flushing water heat exchanger, so as to achieve the purpose of cleaning the heat ...

AI Technical Summary

Problems solved by technology

[0002] As the energy shortage becomes more and more serious, the utilization of secondary energy is becoming more and more important. The recovery of waste heat from blast furnace slag flushing water in iron and steel plants is becoming more and more extensive, but there is still a large amount of dross in the slag flushing water, which is used for heat exchange. After working for a long time, the heat exchanger will be fouled and blocked. Most of the current cleaning methods and devices need to shut down the heat exchanger, which seriously affects the working efficiency of the heat exchanger.

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