Converter primary dust removal system colored smoke plume eliminating device

Abstract

The invention relates to a converter primary dust removal system colored smoke plume eliminating device. The converter primary dust removal system colored smoke plume eliminating device comprises a saturated humid heat flue gas condensation dehumidifier arranged on the front side of a fan, the saturated humid heat flue gas condensation dehumidifier comprises a lower condensation chamber and an upper condensation chamber, the upper condensation chamber and the lower condensation chamber are connected through a number of natural condensation pipes, a smoke inlet is formed in one side of the lower condensation chamber, the smoke inlet is connected with a treatment device at the front end of a converter primary dust removal system, and a cold water coil is arranged on the outer wall of the lower condensation chamber; and a heat insulating device is arranged outside the cold water coil and the outer wall of the lower condensation chamber, the upper condensation chamber is internally provided with a smoke condensation and cooling heat exchanger and a mist eliminator from the bottom to the top in sequence, a smoke exhaust port is formed in the upper end of the upper condensation chamber,the exhaust gas port is connected with the fan, and the cold water coil and the smoke condensation and cooling heat exchanger are both connected with a refrigerating device on the exterior of the saturated humid heat flue gas condensation dehumidifier. The converter primary dust removal system colored smoke plume eliminating device can completely eliminate the problem of smoke plume and recoveredgas pipe corrosion, and the condensation cooling effect is good.

Description

technical field [0001] The invention relates to a dust removal system, in particular to a colored smoke plume elimination device for a primary dust removal system of a converter. Background technique [0002] Converter steelmaking has become the main steelmaking process of iron and steel enterprises. During the blowing process, the converter produces gas containing mainly carbon monoxide, a small amount of carbon dioxide and other trace components, which also contains a large amount of iron oxide, metal iron particles, and other gases. Fine particles of solid dust will seriously pollute the atmosphere and workshop environment. Therefore, it is an urgent problem to be solved to improve the technical level of the converter dust removal system and effectively control and reduce the emission of air pollutants in steelmaking. [0003] The temperature of the converter flue gas outlet is about 1400-1600 ℃, and the dust concentration is 70-200g / m 3 After leaving the furnace mouth,...

AI Technical Summary

Problems solved by technology

[0004] (1) The whole process of the traditional OG method dust removal system adopts wet treatment process. The disadvantages of this technology: ①The dust content of the treated gas is relatively high, which cannot reach ≤10mg / m 3 , to use this gas, it is also necessary to install an electrostatic precipitator at the rear for fine dust removal, and reduce its dust concentration to ≤10mg / m 3 ; ② There is secondary pollution in the system, and its sewage needs to be treated; ③ The resistance of the system is large, so the energy consumption is high and the floor area is large

But the technology still has secondary pollution and sewage treatment

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