Novel process for reutilization of revolving furnace mud

Abstract

The invention relates to a novel process for recovery and utilization of converter mud, which is characterized in that the process flow of transportation, recovery and utilization comprises the following steps that: the converter mud firstly enters a stirring tank of a base booster pump station, metering facilities such as a flowmeter, a massmeter and so on, are arranged before the stirring, a signal is sent to a master control room PLC of the base booster pump station, then the converter mud is sent to a concentration large well by an SGMB70 / 2.0 membrane pump in the base booster pump station through a pipeline, the concentration of the converter mud achieves 27 percent through concentration of bottom flow, then a concentrated tank is equipped with a slurry pump, and the converter mud is sent to the stirring tank through a pipeline; the bottom flow of a concentrator is equipped with a self-circulation facility, a membrane pump is arranged in a slurry adding pump station for sintering secondary pressure, and the converter mud is pressurized through a partial pressure pump station and then is sent to a primary mixer for mixture making. The transportation concentration is confirmed as 19.3 percent. The process can save the cost for mud pressing, processing and transportation, avoids dust mud scattered along roads by automobiles during the transportation from seriously polluting the environment, saves a large amount of water resource, and has remarkable economic benefit and social benefit.

Description

technical field [0001] The present invention is a waste resource that recycles and treats the sludge and waste produced in the dust removal process of the converter in the steel plant, and then sends it to the sintering plant for use as a mixture of sintering raw materials, turning waste into treasure and reducing the waste of iron resources. The invention relates to a recycling technology, which relates to a new process for recycling converter mud. Background technique [0002] At present, the dust sludge treatment process of converter dedusting water generally adopted by major steel mills in the country is that after being treated by the inclined plate settler, the bottom sludge is pressurized and lifted to the press filter room for pressure filtration. The filtered dust and sludge is transported by car. [0003] There are serious problems in the existing converter dedusting sewage treatment system in steelmaking plants: first, the annual cost is relatively high. Before ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the above-mentioned existing defects and solve the difficult problem of pipeline transportation of converter mud; the converter dust and sediment in the steelmaking plant are collected and recovered through the pipeline system, and the steelmaking converter mud recovered in a centralized way is transported uniformly with the pipeline system to avoid The environmental pollution caused by other transportation methods is eliminated; centralized treatment: the converter mud in the steelmaking plant is concentrated and concentrated, and then used for the primary mixing and batching of the sintering process; the two methods of spraying the batching on the sintering primary mixer and spraying the batching on the belt solve the problem of batching nozzles To solve the problem of blockage, a new process for recycling converter mud is provided, which adopts centralized recovery of converter mud in steelmaking plants, and sends it to the concentration tank of the sintering plant through centralized pumping station pressurization and pipelines, and after concentration, it is sent to the sintering plant under pressure , for primary mixer ingredients