Energy-saving and environment-friendly wet coke quenching tower

Abstract

The invention discloses an energy-saving and environment-friendly wet coke quenching tower. The wet coke quenching tower comprises a tower body fixedly mounted on the ground, a cooling spray assembly,a dedusting and demisting spray assembly, an atomizing coagulation assembly, a demisting assembly and an induced draft fan are sequentially arranged in the tower body from bottom to top, a waste heatutilization energy-saving assembly is also connected with the tower body, and the waste heat utilization energy-saving assembly comprises a condenser, a hot water pipe connected with a water outlet end of the condenser and a heat storage tank connected with the hot water pipe. Compared with an existing coke quenching tower, the wet coke quenching tower is provided with multiple dedusting or demisting assemblies, and is higher in demisting efficiency, better in effect, little in pollution emission and smaller in water consumption; by arrangement of a water circulation assembly, water can be recycled, water resources are saved, and the coke quenching cost can be reduced; and by arrangement of the waste heat utilization energy-saving assembly, heat in exhaust is recovered by the condenser and the heat storage tank, water is delivered to heat users after being heated, the energy utilization rate is high, and the energy saving effect is good.

Description

technical field [0001] The invention belongs to the technical field of coking, and in particular relates to an energy-saving and environment-friendly wet coke quenching tower. Background technique [0002] Coal is obtained through high-temperature dry distillation to obtain coke. At this time, the temperature of coke is generally 950~1100°C. In order to facilitate transportation or storage, the temperature needs to be raised to 250°C. This cooling process is called coke quenching. At present, coke quenching towers are often used, which are divided into wet coke quenching towers and dry coke quenching towers. The existing wet coke quenching towers consume a lot of water, and each ton of coke requires 0.3 to 0.5 tons of water. Moreover, during the coke quenching process, the sprayed cooling water directly contacts the high-temperature coke, generating a large amount of water vapor and dust, and uses the thermal self-extraction force to realize high-altitude organized discharge...

AI Technical Summary

Problems solved by technology

At present, coke quenching towers are often used, which are divided into wet coke quenching towers and dry coke quenching towers. The existing wet coke quenching towers consume a lot of water, and each ton of coke requires 0.3 to 0.5 tons of water

Moreover, during the coke quenching process, the sprayed cooling water directly contacts the high-temperature coke, generating a large amount of water vapor and dust, and uses the thermal self-extraction force to realize high-altitude organized discharge, which solves the problem of local pollution, but increases the weight of sewage discharge. The dust content in the discharged hot air is relatively high, and the pollution is relatively serious, and there is no effective recovery and utilization of a large amount of heat energy spilled from the cooling of high-temperature coke, which does not meet the requirements of energy saving and emission reduction

[0003] Chinese patent CN201821258677 discloses a high-efficiency dedusting device for the coke quenching tower. It is equipped with a primary dedusting device and a secondary dedusting device. Through water mist, the coke quenching 135 with a large amount of dust is deeply purified to solve the pollution in the coke quenching process. serious problem

However, in the technical solution of this patent, the water mist particles produced by the primary and secondary dust removal devices are relatively large, and the adsorption effect on dust is not obvious enough, which affects the dust removal and purification effect. The problem of wasted heat

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