Formed coke coupled powder coal pyrolysis technology and system
A technology of coal pyrolysis and pyrolysis, which is applied in coking ovens, petroleum industry, special forms of dry distillation, etc. It can solve the problems of low content of effective components, low calorific value of mixed gas, limited effect of coke enhancement, etc., and achieve thermal energy The effects of high utilization efficiency, increased productivity, and energy saving
Pending Publication Date: 2018-11-13
新疆乾海环保科技有限公司
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Problems solved by technology
[0006] In the above technical solutions, the binder is mixed with the semi-coke after pyrolysis to form coke, and the strengthening effect on the coke is limited. Therefore, the raw materials used to form the semi-coke require high-grade iron ore resources, which cannot Take full advantage of low-grade oxide ores
[0007] In addition, in the prior art, flue gas from the blast furnace outlet is used as the heat source for pyrolysis. The pyrolysis gas produced during the pyrolysis process is diluted by the flue gas, and the resulting mixed gas has a low calorific value and low content of effective components, which can be utilized Low
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[0049] A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.
[0050] Such as figure 2 As shown, the metallurgical reduction coupling type coke carbonization co-finish coal pyrolysis system of the present invention includes: washing equipment 100, high-pressure forming equipment 200, drying device 300, carbonization furnace 400, heat carrier combined pyrolysis device 500, cooling device 600, Screening equipment 700, condensation recovery device 800, dust collector 900.
[0051] The washing equipment 100 is provided with four discharge ports, the first discharge port 210 and the second discharge port 220 are connected to the feed port of the high pressure forming equipment 200, the third discharge port 510 is connected to the end coal bunker 530 The feed ports are connected, and the fourth discharge port 520 is connected with the feed port of the small coal pyrolysis filter device 540 .
[0052] The first...
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Abstract
The invention provides a formed coke coupled powder coal pyrolysis technology and system. The coupling of a coal pyrolysis technology and a briquette coal carbonization technology is realized, a formed coke product is prepared, and formed coking coal in high density formed by a high-pressure forming device is used for carbonizing in a carbonized furnace, and a coal gas generated by the carbonization and a pyrolysis coal gas generated by the pyrolysis are used as heating gases. A limitation that former coke is affected by indexes of coal types and cohesiveness and the like is broken through. Alot of inertia charcoal materials and non-caking coal can be used for coking; and sensible heat of the formed coke after the carbonization of a raw material is adequately used for realizing the full-particle-size pyrolysis of fine coal, the energy consumption is reduced, and the utilization of scarce coking coal resources can be reduced. The cheap fine coal is used for performing the pyrolysis, and the coal gas and tar are extracted for being used by the formed coke.
Description
technical field [0001] The invention relates to the technical fields of non-coking coal coking, coal quality classification, and graded utilization, and in particular to a molded coke coupling powder coal pyrolysis process and system. Background technique [0002] Coal fast pyrolysis refers to putting coal powder into a fast pyrolysis device at a certain temperature, and after high temperature pyrolysis in a short period of time, the organic components in the coal powder become gas or coal tar, and the fixed carbon becomes semi-coke. process. The rapid pyrolysis of coal will produce a large amount of powdered semi-coke, which is difficult to burn and utilize directly, and it is also difficult to shape. It is necessary to add a binder to make it into molded coke for reuse. [0003] CN101984027A The invention discloses a coke powder coke binder and a coke preparation method based on the binder. The coke powder after pyrolysis is pulverized and processed into coke powder wit...
Claims
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IPC IPC(8): C10B53/04C10B53/08
CPCC10B53/04C10B53/08
Inventor 娄文昊娄建军任胜强
Owner 新疆乾海环保科技有限公司