Dust removing and tar removing device and method for high-tar and high-dust high-temperature gas

A high-temperature gas and dust technology, which is applied in the field of gas purification, can solve the problems of short filter life and long time, and achieve the effects of improving filtration efficiency, reducing regeneration time, and increasing service life

Active Publication Date: 2016-08-17
HENAN DRAGON INTO COAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a high-tar high-dust high-temperature gas dedusting and decoking device and method thereof, which solves the problems of low efficiency, long time and short filter life in the existing filter regeneration process.

Method used

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  • Dust removing and tar removing device and method for high-tar and high-dust high-temperature gas
  • Dust removing and tar removing device and method for high-tar and high-dust high-temperature gas
  • Dust removing and tar removing device and method for high-tar and high-dust high-temperature gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Such as figure 1 As shown, a dedusting and decoking device for high-tar and high-dust high-temperature gas includes a filter device, and the filter device includes an inlet for high-tar and high-dust high-temperature gas, and a high-temperature gas for discharging the filter export. The filter device in this embodiment is composed of several filters 12, which are fixed on the housing device through the support plate 10, and the filters 12 are divided into several filter areas. In this embodiment, there are 28 filters 12, which are evenly divided into four filter areas. Filter 12 is a ceramic dust removal pipe. The filter can also adopt other filter devices suitable for filtering gases such as dust tar. The number of filters can be set according to actual needs, and can be from several to hundreds. The root number of filters in each filter area can also be set to multiple according to actual conditions. Such as figure 2 Shown is a housing arrangement for housing a...

Embodiment 2

[0046] Such as image 3 As shown, it is basically the same as Embodiment 1, the difference is that the filter device is composed of several filters 12, the filter 12 is fixed on the housing device through the support plate 10, and the blowing gas delivery pipe includes Conveying the main pipe 20 and the conveying branch pipe 21 , each filter 12 corresponds to a conveying branch pipe 21 , and the conveying branch pipe 21 extends into the inside of the filter 12 , and the blowing valve 19 is set on the conveying main pipe 20 . With the above-mentioned device, the conveying branch pipe extends into the inside of the filter, and the backflushing is more thorough. In the structure of this embodiment, a storage device for storing substances that contribute to tar combustion catalysis, the storage device is connected to the delivery main pipe. The substances in the storage device can be added during backflushing, so that during the high-pressure backflushing process, the tar burning...

Embodiment 3

[0049] Such as figure 1 and 4 As shown, it is basically the same as Embodiment 1, and the difference is that in this embodiment, two filter devices and a shell device are provided, and the two sets of devices share a high-temperature gas circulation device and a high-temperature pressurized gas source 1 . With two sets of devices, one device can be filtered and purified, and the other device can be regenerated to avoid the problem of failure to filter and purify due to shutdown.

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Abstract

The invention relates to a dust removing and tar removing device and a dust removing and tar removing method for a high-tar and high-dust high-temperature gas. The dust removing and tar removing device for the high-tar and high-dust high-temperature gas comprises a filtering device, a casing device and a back blowing device, wherein the casing device is used for accommodating filters; the back blowing device is used for cleaning dust on the filters; the dust removing and tar removing device for the high-tar and high-dust high-temperature gas also comprises a high-temperature gas circulating device; the high-temperature gas circulating device comprises a circulated gas heating device used for heating a purified gas coming out from the filters; an inlet end of the circulated gas heating device is communicated with outlets of the filters; an outlet end of the circulated gas heating device is communicated with the casing device; the circulated gas heating device is provided with a gas supplementing device used for supplementing an oxygen-containing gas. The device provided by the invention, by combing back blowing and combustion manners, can effectively remove the pollution caused by the dust and tar on the filters, effectively prolongs and improves the service life and the filtration efficiency of the filters, decreases the regeneration time of the filters from 60h to 10h, and increases the service life of the filters by above 50%.

Description

technical field [0001] The invention relates to a dedusting and decoking device and method for high-tar and high-dust high-temperature gas, belonging to the field of gas purification. Background technique [0002] In recent years, with the rise of low-carbon economy, the substitution of fossil energy such as coal, natural gas and oil by biomass has become a research hotspot in the field of new energy, which has important strategic significance and has been given enough attention by countries all over the world. Among the many new technologies for biomass energy utilization, biomass gasification technology is one of the fastest-growing and relatively mature engineering technologies. Biomass gasification is one of the important ways to convert primary energy into clean secondary energy. Its products are mainly combustible gases, which can also be processed into high-quality gases such as syngas and hydrogen after advanced treatment. Biomass gasification technology has broad a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10K1/02C10K1/00B01D46/00B01D46/24B01D46/42
CPCB01D46/24B01D46/4263C10K1/003C10K1/024B01D46/66B01D46/58B01D46/71
Inventor 朱书成
Owner HENAN DRAGON INTO COAL TECH CO LTD
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