Device for high humidity charging coking coal humidity control process

Abstract

The invention discloses a device for high-humidity furnace-loading coking coal humidity control technology, which comprises a fluidized bed type humidity control machine, and a first fluidized bed type built-in heat control device is arranged side by side in the fluidized bed type humidity control machine. The humidity module and the second fluidized bed type built-in heat and humidity control module, the first fluidized bed type built-in heat and humidity control module is connected in series with an air preheater and a first fluidization fan in series to form a first process loop; The second fluidized bed type built-in heat and humidity control module is connected in series with a second fluidization fan to form a second process loop; the first process loop and the second process loop are connected through an adjustable overflow plate. The present invention adopts a frame structure, and the air preheater and the fluidized bed type humidifier are all modularized combinations, which ensures convenient installation and maintenance of the process device, and multiple modules can be arbitrarily combined into a large process device according to production requirements. Only one backup module is needed to ensure the normal production of the humidity control system, which reduces the scale of the backup equipment of the existing humidity control system.

Description

technical field [0001] The invention relates to the technical field of coking in the coking industry, in particular to a device used in the high-humidity furnace charging coking coal humidity control process. Background technique [0002] Coal humidity control process (CMC) refers to the process of "moisture control of coal for coking and charging furnace". It is developed on the basis of dry coal coking technology. , dehydration, to achieve the adjustment and control of coal moisture. According to the current coking process requirements, the moisture in coal is controlled at about 6%, so as to reduce the energy consumption of the coking process, ensure the stability of coke oven operation, improve the quality of coke or increase the weak The purpose of adding the amount of caking coal and reducing the amount of coking sewage. At the same time, the moisture content of the coking coal in the furnace is reduced, and the bulk density of the coal is increased, which correspondi...

AI Technical Summary

Problems solved by technology

There is also the use of coke oven flue gas as a heat carrier, but high-temperature flue gas needs to be transported for a long distance, the energy consumption of the high-temperature fan with large air volume and the heat loss of the flue gas are large, and the flue gas flow rate is limited, the heat capacity is low, and the adjustability is poor.

Secondly, many domestic independent coking enterprises use coke oven gas as the heat source for coke ovens, and the flue gas produced has a high moisture content. Therefore, the flue gas has a low moisture-carrying capacity, which affects the humidity control efficiency.

In addition to the problems of high energy consumption, low adjustment ability, large basic investment, high operating cost, complicated control and adjustment, and large amount of maintenance, the above schemes have problems

When the moisture content of the coal material is too high, many coal humidity control and drying devices will be affected, which will seriously affect the effect and efficiency of the coal humidity control process

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