Dust removal purification device and method for crude coal tar

A purification device and technology for tar, applied in chemical instruments and methods, separation methods, tar processing and other directions, can solve the problems of low efficiency of dust removal and purification of crude coal tar, and achieve the effect of flexible device, stable and reliable operation, and no solvent loss.

Inactive Publication Date: 2016-02-17
SHAANXI YANCHANG PETROLEUM GRP
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the defects in the prior art such as low efficiency of dedusting and purifying crude coal tar, and provide a device and method for dedusting and purifying crude coal tar with high purification efficiency, thereby contributing to the subsequent processing and utilization of coal tar

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  • Dust removal purification device and method for crude coal tar

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Embodiment Construction

[0030] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0031] see figure 1 , the device of the present invention includes one or more parallel backwash filters 3 in which filter core 4 is installed, the crude coal tar 1 is communicated with the bottom inlet 12 of the backwash filter through the feed valve 2, and the filter core 4 inner cavity It communicates with the top outlet 6 of the backwash filter, and communicates with the purified tar tank 8 through the first outlet valve 7 of the purified oil, and the bottom of the backwash filter 3 communicates with the residual oil buffer tank 13 through the drain valve 11 to purify the tar The outlet of the tank 8 communicates with the inner cavity of the filter element 4 installed in the recoil filter 3 through the first recoil valve 9, the recoil pump 10 and the second recoil valve 5 in turn, and the outlet of the residual oil buffer tank 13 passes through the The r...

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Abstract

The invention discloses a dust removal purification device and method for crude coal tar. The dust removal purification device comprises a backwashing filter, a horizontal decanter centrifuge, a residual oil buffer tank, a purified tar tank, a factice tank, a vacuum filter, a dryer and a distillation apparatus, wherein a filter element is arranged in a cavity of the backwashing filter, and dust-containing coal tar is purified continuously through filtering and backwashing of the filter element; residual oil after backwashing enters the horizontal decanter centrifuge for liquid-solid separation, and purified tar and factice are obtained. In order to increase the recovery rate of the purified tar sufficiently, the factice is extracted with a recycling solvent, and final products of a system comprise purified coal tar and dry cinders. The backwashing filter and the horizontal decanter centrifuge are adopted to cooperate with the solvent extraction system for dust removal purification of the crude coal tar, through graded and stepped treatment, the treating capacity of the system is improved sufficiently while the coal tar is recovered to the greatest extent, besides, the solvent is recycled, and energy saving and environmental protection are realized.

Description

technical field [0001] The invention relates to the processing and utilization of coal tar in the field of energy and chemical industry, in particular to a crude coal tar dust removal and purification device and method. Background technique [0002] Coal tar is a typical dispersion system. The dispersed phase is dispersed in the dispersion medium in the form of solid, liquid and gaseous particles. It functions through the multi-component mixing of organic compounds and numerous constituents. These molecular structures determine the liquid state exists. However, according to different raw materials and process conditions, coal tar usually contains different amounts of dust. If it is directly burned, it will waste coal tar resources, cause serious pollution, and the utilization efficiency is not high; if it is directly used, the dust in coal tar will It will have adverse effects on subsequent processing, for example, dust will cause serious blockage to hydrogenation productio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D36/04B01D36/00C10C1/00C10C1/18
Inventor 李大鹏王明峰王宁波王汝成郝婷靳皎王武生孔少亮吴升潇张健
Owner SHAANXI YANCHANG PETROLEUM GRP
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