Lignite gasification-reduction three-stage dust removal cooling and automatic air lock device

Abstract

The invention discloses a lignite gasification-reduction three-stage dust removal cooling and automatic air lock device, which is characterized by comprising a first filter, a second filter, a round pipe and a third filter which are sequentially connected with a first air outlet of a reaction kettle, wherein the first filter is used for receiving dust-containing high-temperature oil gas exhaustedfrom the first air outlet; the second filter is used for removing a large amount of dust and heavy tar in the high-temperature oil gas from the first gas inlet; L-shaped angle steel for dust removal is arranged at the inside; a reverse-eight-shaped rectangular baffle plate is connected in a sealed way; the round pipe is connected with three filters; a valve is arranged at a part connected with thefirst filter; the third filter is used for cooling the tar and dust-containing particles. The device provided by the invention has the advantages that automatic gas lock and continuous material discharging are realized; the content removal rate of the dust-containing particles and the heavy tar is high; the product quality is greatly improved; equipment is simplified for subsequent coke oven gasand light tar separation; the quality is improved; the continuous operation can be realized; the industrial mass production is really realized.

Description

technical field [0001] The invention belongs to the technical field of energy development and environmental protection, and in particular relates to a three-stage dedusting cooling and automatic gas lock device for lignite gasification reduction. Background technique [0002] In recent years, with the development and application of comprehensive coal mining technology, the proportion of pulverized coal mining has gradually increased, and various explorations and tests for pulverized coal dry distillation have become increasingly mature. Compared with coal gasification and liquefaction technology, coal dry distillation can obtain gas, tar and semi-coke under milder conditions, and is a more economical coal conversion route. The carbonization process of coal is generally carried out in carbonization equipment such as carbonization furnace. The gas phase product produced in the process of coal carbonization is generally called "carbonization gas", which contains a certain amoun...

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Problems solved by technology

[0004] It should be said that the above several devices have a certain dust removal effect, and they are used more now, but a single device often has a low dust removal efficiency, and a certain amount of dust particles and heavy tar enter the follow-up equipment, giving follow-up light The quality of high-quality tar, the quality of coke oven gas, and pipeline blockage have a great impact. Often the dust removal effect is good or bad, and the removal rate of heavy tar directly determines the quality and production efficiency of the company's products.

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