Low temperature dry distillation coke oven hot-water circulation utilizing system

Abstract

The invention discloses a low-temperature carbonization coke oven hot-water circulation use system. A cooling water jacket is connected below the coke oven for the heat exchange with a fervent semicoke. The system is characterized in that the hot water discharged from a cooling jacket (3) is delivered to a dehydrating tank (4) and a tar tank (1) for heating via a water delivery pipe (5), and is then delivered to a circulation water tank (2) via a water returning pipe (6) to be discharged back to the cooling jacket for recycling. A circulation waster pump (7) is mounted on the water returning pipe between the cooling jacket and the circulation water tank. The system sufficiently utilizes the heat of the discharged semicoke for the heat exchange with the circulation water within the cooling jacket so that the heated circulation water is directly delivered to heating pipelines of the dehydrating tank and the tar tank to play a role of heating. The system does not need a cooling tower and a steam boiler, only uses extremely little power as well as has simple equipments, low running costs, no waste exhaust and the heat energy that can be recycled.

Description

technical field [0001] The invention relates to a low-temperature dry distillation coke oven hot water recycling system. Background technique [0002] For the production of semi-coke in low-temperature carbonization coke ovens, the temperature of semi-coke discharged from the coke oven can reach above 600°C, and a water-cooled jacketed coke discharge box is installed at the bottom of the furnace to ensure that the steel structure at the bottom of the furnace is not damaged by heat. After the circulating water in the jacket of the coke discharge box is discharged, it needs to be cooled by the cooling tower before it can be recycled. This kind of system needs to be specially equipped with a cooling tower, and the equipment investment cost is very high. Not only does it need to consume power, it also needs to consume a large amount of water during the cooling process. In addition, to separately configure the steam boiler to heat and dehydrate the tar in the tar tank, special i...

AI Technical Summary

Problems solved by technology

This kind of system needs to be specially equipped with a cooling tower, and the investment cost of the equipment is very high. It not only consumes power, but also consumes a lot of water during the cooling process.

In addition, to separately configure the steam boiler to heat and dehydrate the tar in the tar tank, special investment in boilers and power is required, and special boiler workers are required to operate and operate, and consume a large amount of coal or gas or other fuels

Moreover, during the operation of the steam boiler, first, the pressure is high and safety needs to be paid attention to; second, coal or other fuels are consumed, energy is wasted, and waste residue, waste gas, and waste water discharged from the boiler cause environmental pollution; third, water quality treatment must be carried out frequently; Larger investment; fifth, high operating costs; sixth, fluctuations in water temperature, which is not conducive to static dehydration of tar

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