High-temperature coke powder cooling device

Abstract

The invention relates to the technical field of coke oven devices, and concretely relates to a high-temperature coke powder cooling device. The high-temperature coke powder cooling device comprises abarrel and a lower conical hopper, the lower conical hopper is arranged below the barrel, an upper flange is arranged at the top of the barrel, a partition plate is arranged at the bottom of the barrel, a plurality of coke powder descending tubes are arranged in the barrel at intervals, one end of each coke powder descending tube penetrates through the upper flange, the other end penetrates through the partition plate and extends into the lower conical hopper, one end, positioned at the partition plate, of every coke powder descending tube is sleeved with a metal expansion joint, the metal expansion joints are connected to the partition plate, the outer wall of the barrel is connected with a water inlet tube and a water outlet tube, the water inlet tube is located at one side of the partition plate, the water outlet tube is located at one side of the upper flange, water flows into the water inlet tube, the coke powder descending tubes are filled with the water flow to achieve the cooling effect, and the used cooling water flow flows out of the water outlet tube. The high-temperature coke powder cooling device has the advantages of simple structure, light weight, easiness in manufacturing, and high heat exchange efficiency.

Description

technical field [0001] The invention relates to the technical field of coke oven equipment, more specifically, it relates to a high-temperature coke powder cooling device. Background technique [0002] The energy saving of CDQ and its beneficial effect on blast furnace production have made CDQ widely used in the coke oven industry. The coke powder cooling device under the CDQ primary dust collector is for the coke powder collected by the primary dust collector at about 900 ℃ For cooling and discharge, the device generally adopts the form of inner and outer water-cooled sleeves and jacketed water-cooled sleeves. [0003] The three-layer structure of the inner and outer water-cooled sleeves, the inner and outer layers are water-through, and the middle layer is a high-temperature coke powder channel, and the high-temperature coke powder in the high-temperature coke powder channel is cooled by water flow. [0004] The above scheme has defects: under the action of high-temperatu...

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Problems solved by technology

[0004] The above scheme has defects: under the action of high-temperature coke powder, a large number of air bubbles will be generated when the water flows on the upper part of the inner sleeve, and the air bubbles will gather and suspend, blocking heat exchange, causing high temperature locally in the inner sleeve, forming thermal stress, and causing cracks in the weld seam of the inner sleeve Welding leaks; the production of the jacketed water-cooled casing is complicated, there are many welds, dirt is easy to deposit in the jacket, the jacket is blocked, the cooling effect is reduced, the temperature of the coke discharge powder is high, and the weld seam of the lower part of the casing is cracked

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