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Semi coke production system

A production system and semi-coke technology, applied in the field of coal chemical industry, can solve the problems of poor cooling effect of semi-coke and so on

Active Publication Date: 2017-08-01
CHNA ENERGY INVESTMENT CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to provide a semi-coke production system to solve the problem of poor cooling effect of the semi-coke production system on the semi-coke in the prior art

Method used

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Experimental program
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Effect test

Embodiment 1

[0038] The semi-coke production system is used to produce lignite semi-coke. Among them, the outer diameter of the fixed furnace body in the water spray cooling device is 7000mm, and the height (including the inlet and outlet pipes) is 7200mm; There are two coal shifting plates above the grate; the main material of the semi-coke cooling device is ordinary carbon steel + refractory material, with a total weight of about 80 tons.

[0039] The lignite semi-coke produced by the dry distillation system with a temperature of 460°C and a particle size range of 10-23m is put into the water spray cooling device for cooling. The semi-coke with a temperature of 97°C obtained after cooling is put into the scraper conveyor for cooling again, and the exhaust gas from the dry distillation system is used as the CDQ gas in the scraper conveyor to obtain lignite with a temperature of 46°C Half focus.

[0040] The above-mentioned lignite semi-coke at 46°C was stored and transported, and sponta...

Embodiment 2

[0042] The semi-coke production system is used to produce lignite semi-coke. Among them, the outer diameter of the fixed furnace body in the water spray cooling device is 18000mm, and the height (including the inlet and outlet pipes) is 12200mm; There are four coal shifting plates above the grate; the main material of the semi-coke cooling device is ordinary carbon steel + refractory material, and the material of the grate is 304 stainless steel, with a total weight of about 475 tons.

[0043] The lignite semi-coke produced by the dry distillation system with a temperature of 535°C and a particle size range of 13-20m is put into the semi-coke cooling device for cooling. The semi-coke with a temperature of 107°C obtained after cooling is put into the scraper conveyor for cooling again, and the exhaust gas from the dry distillation system is used as the CDQ gas in the scraper conveyor to obtain lignite with a temperature of 47°C Half focus.

[0044] The above-mentioned lignite...

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Abstract

The invention discloses a semicoke producing system. The semicoke producing system comprises a dry distilling system, a water sprinkling cooling device, a coke dry quenching device and a semicoke collecting device, wherein the dry distilling system comprises a semicoke outlet; the water sprinkling cooling device comprises a first hot semicoke feeding port connected with the semicoke outlet of the dry distilling system, and a first cold semicoke discharging port and a water gas exhaust port; the coke dry quenching device comprises a second hot semicoke feeding port connected with the first cold semicoke discharging port, and a second cold semicoke discharging port and a coke quenching gas inlet; the semicoke collecting device comprises a collecting feed port connected with the second cold semicoke discharging port. The water sprinkling cooling device is arranged in front of the coke dry quenching device, so that hot semicoke is cooled by water sprinkling before coke dry quenching; through two-step coke quenching, the hot semicoke cooling efficiency can be effectively improved; the hot semicoke is cooled in a sprinkling way, so that the hot semicoke can be prevented from cracking in case of shock cooling to generate a large amount of fine coal; the semicoke producing system achieves closed coke quenching, so that the environmental pollution can be reduced.

Description

technical field [0001] The invention relates to the field of coal chemical industry, in particular to a semi-coke production system. Background technique [0002] my country's energy structure is rich in coal and poor in oil. The carbon reserves of low-rank coals such as lignite, long-flame coal, and non-caking coal account for about half of my country's total coal reserves. In seeking to replace petroleum energy and efficiently develop and utilize low-rank coal Under the promotion of resource trends, the development of medium and low temperature dry distillation technology of low coal rank coal is accelerated, especially the low temperature dry distillation of lignite and long-flame coal has achieved certain industrial application performance and is gradually becoming mature. The temperature of brown coal semi-coke after dry distillation can reach over 400°C after coming out of the dry distillation reactor, and its activity is extremely high. If it is not cooled rapidly, it ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10B39/04C10B39/02
CPCC10B39/02C10B39/06C10B39/08
Inventor 侯鹏飞
Owner CHNA ENERGY INVESTMENT CORP LTD