7.63m coke oven horizontal tube primary cooler cleaning method

Abstract

The cleaning method of the 7.63m coke oven horizontal tube primary cooler belongs to the field of coal chemical equipment maintenance. It includes a water storage tank. The characteristic is that the water storage tank is connected to a water pump. The output pipe of the water pump passes through the pipeline and the cleaning water valve and the horizontal tube primary cooling The water inlet pipe of the device is connected, and the cleaning water valve is connected between the circulating water inlet valve and the water inlet pipe of the horizontal tube primary cooler. The water outlet pipe of the horizontal tube primary cooler is connected to the water storage tank through the pipeline and the water withdrawal valve. The water withdrawal valve It is installed between the high-temperature section and the medium-temperature section circulating water outlet valve and the water outlet pipe of the horizontal tube primary cooler. The invention not only effectively removes calcium scale inside the horizontal tube primary cooler, but also forms a protective film on the inner wall of the horizontal tube primary cooler to reduce the formation of calcium scale; and can be processed online to avoid equipment corrosion.

Description

technical field [0001] The invention belongs to the field of coal chemical equipment maintenance, and in particular relates to a cleaning system and a cleaning method for a horizontal tube of a primary cooler of a 7.63m coke oven. Background technique [0002] The coke oven primary cooler is divided into upper section, middle section and lower section, and the water volume in the tube side is 11.4m respectively. 3 、33m 3 and 17.8m 3 , the upper and middle sections are cooled by gas circulating water, and the lower section is cooled by a low-temperature water system. [0003] After the gas circulating water cooling system has been in operation for many years, scaling and blockage will occur on the side of the water pipe of the horizontal tube primary cooler, resulting in reduced water volume and poor cooling effect. [0004] The traditional plugging removal method is to replace the tube bundle or to clean it mechanically. Some units use chemical cleaning method, but the ef...

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