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Resourceful treatment system of coking distillation residues and treatment method thereof

A treatment system and resource recovery technology, applied in the field of harmless treatment and resource utilization of hazardous waste, can solve problems such as incomplete combustion of distillation residues, a large amount of pollutants, and environmental pollution, and achieve effective reuse and ash content Low, easy-to-operate effect

Active Publication Date: 2013-09-04
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of method not only wastes resources but also pollutes the environment due to the incomplete combustion of the rectification residue and the generation of a large amount of pollutants during the combustion process.

Method used

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  • Resourceful treatment system of coking distillation residues and treatment method thereof
  • Resourceful treatment system of coking distillation residues and treatment method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] like figure 1As shown, a resource treatment system for coking and rectification residues, the system includes a flat-flow sedimentation tank 1, a coal tar tank 2, a tar residue tank 3, a series centrifugal separator, a distillation tower 8, a pulverizer 9, a hopper, Unloading hopper, mixing barrel 14, drying kiln 15, ball mill 16, pelletizing machine 17 and shaft furnace 18, the middle part of the advection type sedimentation tank 1 is connected with the coal tar tank 2, and the bottom part of the advection type sedimentation tank 1 is connected with the tar residue The tank 3 is connected, and the coal tar tank 2 and the bottom of the tar residue tank 3 are respectively provided with an outlet, and the outlet is connected with a pump 5, and the other end of the pump 5 is connected with a series centrifuge, and the middle part of the series centrifuge is connected with The distillation tower 8 is connected, the lower part of the series centrifuge is connected with the i...

Embodiment 2

[0044] A resource treatment system for coking and rectification residues, the system includes a flat-flow sedimentation tank 1, a coal tar tank 2, a tar residue tank 3, a centrifugal separator connected in series, a distillation tower 8, a pulverizer 9, a hopper, a hopper, Mixing bucket 14, drying kiln 15, ball mill 16, pelletizing machine 17 and shaft furnace 18, the middle part of the advection sedimentation tank 1 is connected with the coal tar tank 2, and the lower part of the advection sedimentation tank 1 is connected with the tar residue tank 3 , the bottom of the coal tar tank 2 and the tar residue tank 3 are respectively provided with an outlet, the outlet is connected to a pump 5, and the other end of the pump 5 is communicated with a series centrifuge, and the middle part of the series centrifuge is connected to a distillation tower 8 Connected, the lower part of the series centrifuge is connected to the inlet of the pulverizer 9, the outlet of the pulverizer 9 is co...

Embodiment 3

[0053] The resource treatment system for the coking and rectifying residue is basically the same as that of Examples 1 and 2, except that the inflow baffle is 0.25m higher than the height of the rectification residue in the pool, and the immersion depth of the inflow baffle is 0.5m. m, the baffle at the outflow is 0.2m higher than the rectification residue in the pool, and the immersion depth of the baffle at the outflow is 0.3m.

[0054] The resource treatment method of the coking and rectification residue in the system is basically the same as that in Examples 1 and 2, the difference is that before the step 3), 25% diluent heavy benzene is sent to the coal tar outlet through valve 4 control Dilute 75% crude coal tar. The particle size of the pulverized tar residue in the step 5) is 1.5 mm, and the mass ratio of the pulverized tar residue and the pellet raw material for pelletizing is: 2.5% of the tar residue and 97.5% of the pellet raw material.

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Abstract

The invention discloses a resourceful treatment system of coking distillation residues. The system comprises a horizontal-flow type sedimentation tank, a coal tar tank, a coal tar residue tank, a series-connected centrifugal separator, a distillation tower, a pulverizer, a charging hopper, a discharging hopper, a uniformly-mixing bucket, a drying kiln, a ball crusher, a pelletizer and a vertical furnace. The invention also discloses a treatment method of the coking distillation residues in the system. The method comprises the following steps of: primarily separating ammonia water, coal tar and coal tar residues by virtue of the horizontal-flow type sedimentation tank; separating coarse coal tar and coarse tar residues which are obtained by primary separation for twice by virtue of the series-connected centrifugal separator; feeding the separated coal tar to the distillation tower to distill; feeding the separated tar residues to the pulverizer to pulverize and uniformly mixing with pellet raw materials; drying, pulverizing and pelletizing; and feeding to the vertical furnace to incinerate. According to the system, the coal tar and the tar residues are effectively separated by using a repeatedly-separating device, the coal tar is distilled into fractions with different boiling points through the distillation tower, and the tar residues and the pellet raw materials are fed to the vertical furnace to incinerate after being uniformly mixed, dried, pulverized and pelletized, so that resource recycling is realized while environment protection is realized at the same time.

Description

technical field [0001] The invention relates to a resource treatment system and a treatment method for coking and rectification residues, and belongs to the technical field of harmless treatment and resource utilization of hazardous waste. Background technique [0002] With the rapid development of industry, the hazardous waste generated in the process of industrial production is increasing day by day. Waste treatment and disposal is a major national demand during the "Twelfth Five-Year Plan". In December 2011, the Ministry of Industry and Information Technology promulgated the "Twelfth Five-Year Plan" Special Plan for the Comprehensive Utilization of Bulk Industrial Solid Waste, aiming to vigorously promote the resource utilization of solid waste. Hazardous wastes from key industries such as chemical industry, non-ferrous metals and light industry shall be checked, controlled and disposed of compulsorily. According to the National List of Hazardous Wastes (2008), the dist...

Claims

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Application Information

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IPC IPC(8): C10C1/00C10C1/02C10C1/04C22B1/244
CPCY02P10/20
Inventor 赵浩川钟文琪陈曦周冠文金保昇
Owner SOUTHEAST UNIV
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