Coal material decomposition oil gas dedusting equipment and dedusting method

Abstract

The invention discloses dust removing equipment for an oil gas generated in coal material decomposition and a dust removing method. The dust removing equipment comprises coal material decomposition equipment, and pulverized coal conveying mechanism, wherein the pulverized coal conveying mechanism is connected with the coal material decomposition equipment; a barrel communicated with the pulverized coal conveying mechanism is arranged on the pulverized coal conveying mechanism; an oil gas output mechanism communicated with the barrel is arranged on the upper part of the barrel; a coal particle storage tank communicated with the barrel is arranged on the upper part of the barrel; and a brake valve is arranged on the lower part of the coal particle storage tank. The equipment is high in heat utilization rate; energy sources are saved; silicon oxide, alumina balls and the like do not need to be added as filter materials; filter materials do not need to be filtered or recycled, and do not need to be preheated and heated; the procedures are reduced; and the dust removal efficiency is high.

Description

technical field [0001] The invention belongs to the technical field of high-temperature dedusting of oily gas in the technical field of coal chemical industry, and in particular relates to an oil gas dedusting equipment and a dedusting method for decomposing coal substances. Background technique [0002] At present, there are three methods for dedusting a kind of raw coal gas. The first method is to use a combined cyclone separator, which has low separation efficiency and cannot separate coal dust below 5 μm, and cannot separate a large amount of oil sludge; the second method is electric dust removal. , because the tar-containing raw gas temperature is lower than the tar freezing point and will condense, the electric dust collector needs to be operated at high temperature, the high temperature corrosion of the electrode wire cannot be solved, and the electric dust collector has a large volume, and the tar residence time is too long, and the secondary cracking will be serious....

AI Technical Summary

Problems solved by technology

The disadvantages of gas are: 1) Using a catalyst as a filter material, there is a contradiction between the temperature at which the catalyst can act as a catalyst and the temperature at which the tar in the pyrolysis oil gas is neither condensed and precipitated nor overheated and coked, so it cannot meet the long-term stability of the device. run

2) The catalyst needs to be recovered and preheated, which consumes a lot of energy, and the process is complicated, and the dust removal effect is poor

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