Dust removal ash conveying device and method for blast furnace

Abstract

The invention provides dust removal ash conveying device and method for a blast furnace. According to the dust removal ash conveying device for the blast furnace, a plurality of dust removers are connected to an ash conveying pipeline in parallel, and the first end of the ash conveying pipeline is connected with an industrial cyclic water pipeline; a mud sump is connected to the second end of theash conveying pipeline, and a first mud pump is arranged in the mud sump; a mud-water separation mechanism is connected with the first mud pump through a mud conveying pipeline, and the mud-water separation mechanism is provided with a water outlet and a mud outlet; and a water recovery mechanism comprises a sedimentation tank and a second mud pump located in the sedimentation tank, the sedimentation tank is connected with the water outlet of the mud-water separation mechanism through a water outlet pipeline, and the second mud pump is connected with the first end of the ash conveying pipelinethrough a recovery pipeline. According to the dust removal ash conveying device and method for the blast furnace, furnace ash is conveyed in a manner of mixing industrial cyclic water with the furnace ash, so that blockage of the ash conveying pipeline can be avoided, and flying dust and pollution are avoided; moreover, the cyclic water in mud can be separated well; and the dust removal ash conveying device and method for the blast furnace are safe and environment-friendly, high in ash conveying efficiency, low in cost, and capable of realizing cyclic use of water.

Description

technical field [0001] The invention relates to a conveying device and method for blast furnace dedusting ash, in particular to a conveying device and method for blast furnace dedusting ash in the field of metallurgical industry. Background technique [0002] In recent years, my country's iron and steel enterprises have put forward higher and higher requirements for energy conservation and emission reduction. Cost control, clean production, and comprehensive utilization of resources are being widely concerned by various enterprises. It is stipulated in relevant industry standards that iron and steel enterprises should take developing circular economy, promoting clean production, saving energy, protecting ecological environment, improving economic efficiency and taking the road of sustainable development as the basic principles of operation. [0003] The blast furnace ash generated during the blast furnace smelting process is filtered through the bag filter and collected in t...

AI Technical Summary

Problems solved by technology

Pneumatic ash conveying gas has the following problems: 1. Due to the application of warehouse pumps and fans in the process of ash conveying, it needs to consume a lot of electric energy; 2. The structure is complex and there are many fault points, which is easy to cause gas leakage; Blast furnace ash, poor fluidity, difficult for this system to deal with

The problems of this device: 1. The separation of the mortar is not realized, which is not conducive to the transportation of the dust; 2. The recycling of water is not considered, which is not suitable for the development of circular economy.

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