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Microwave pretreatment desulfurization coking method and device

A pretreatment device and pretreatment technology are applied in coke ovens, charging devices, petroleum industry and other directions to achieve the effects of improving bulk density, low cost and simple device structure.

Inactive Publication Date: 2014-07-16
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the defects and deficiencies in the existing coking technology, the purpose of the present invention is to provide a microwave pretreatment desulfurization coking device to solve the problems of initial temperature, coal bulk density and coking time in the current coking process

Method used

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  • Microwave pretreatment desulfurization coking method and device
  • Microwave pretreatment desulfurization coking method and device
  • Microwave pretreatment desulfurization coking method and device

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Embodiment 1

[0020] Embodiment 1: the coking method includes method and device;

[0021] A microwave pretreatment coking method, including a coal blending process, a coal charging process, and a coking process, and also includes a microwave pretreatment process added between the coal blending process and the coal charging process, and the microwave pretreatment process adopts a microwave pretreatment device, The microwave frequency is 300MHz~300GHz, and the coal blending is irradiated, dehydrated, and desulfurized. The temperature of the pretreated coal sample is controlled at 150°C~250°C, and it is ready to be loaded into the furnace and enter the coking process.

[0022] The device for realizing the coking method includes: coal tower 1, microwave pretreatment device 2, coal loading car or silo 3, feeder 4, flow regulating valve 5, feeding hopper 6, conveyor 7, microwave waveguide 9, temperature detection Device 10, hopper 11, exhaust pipe 12, microwave reaction chamber wall 13, shell 14,...

Embodiment 2

[0033] Embodiment 2: The difference between this embodiment and the first embodiment is that the size of the conveyor 7 can be adjusted according to production needs. The microwave pretreatment device 2 can be used as a module in a single group or in multiple groups, and is connected with the coal tower 1 and the coal loading car or the silo 3 .

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Abstract

The invention discloses a microwave pretreatment desulfurization coking device, and particularly provides a device for coking coal. The device comprises a coal blending process, a coal charging process and a coking process; and the method further comprises a microwave pretreatment process between the coal blending process and the coal charging process. The microwave pretreatment process adopts a microwave pretreatment device with the microwave frequency ranged from 300MHz to 300GHz for irradiating, dewatering and desulfurizing the blended coal; and the temperature of the pretreated coal sample is controlled between 150 and 250 DEG C; and then coal is prepared to be charged into a stove and coked. The microwave pretreatment device comprises a microwave reaction chamber body, a connecting device, a conveyor, an exhaust duct and a detection control system, wherein the connecting device, the conveyor, the exhaust duct and the detection control system are arranged among the microwave reaction chamber body, a coke stove coal tower and a coal charging trolley or a material bin. The device is simple; after being quickly preheated, dewatered and desulfurized, the blended coal can be coked so as to improve the bulk density, shorten the coking time and promote the yield of a single furnace as well as the coal quality; and clean and effective utilization of energy can be realized.

Description

technical field [0001] The invention relates to a coal coking device, in particular to a microwave pretreatment desulfurization coking device. Background technique [0002] Coking, also known as high-temperature dry distillation, refers to the process in which coking coal is heated to 900 ℃ ~ 1100 ℃ under the condition of isolation of air, and undergoes thermal decomposition to produce coke, coal tar, crude benzene, gas and other products. After the coal material is added to the furnace, the temperature rises to 200°C, and the free water and bound water in the coal are released; at 350°C~450°C, the coal begins to soften and decomposes to produce gas and a large amount of colloid; at 450°C~550°C , the colloid decomposes and solidifies to form semi-coke; at 550°C~750°C, the semi-coke decomposes and releases a large amount of gas, and the semi-coke shrinks to produce cracks; above 750°C, the semi-coke is further decomposed to produce gas, and at the same time continues to polyc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10B57/08C10B57/00C10B31/00
Inventor 周敏王化阳宗志俊严东郭雯叶普海陈恒宝杨絮钱春梅陈楠楠赵冬梅
Owner CHINA UNIV OF MINING & TECH
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