Cleaning system and method for cement production line kiln tail smoke chamber discharging slope crust

Abstract

The invention discloses a cleaning system and method for a cement production line kiln tail smoke chamber discharging slope crust. The cleaning system and method comprises a water tank, a high-pressure water pump, a high-pressure spray gun, a high-temperature camera, a movable trolley, an infrared scanner and a control box; a water inlet of the water tank is connected to a fire-fighting water system through a water inlet pipeline, a water inlet valve is arranged on the water inlet pipeline, a water outlet of the water tank is connected to the high-pressure water pump through a water outlet pipeline, and a water outlet valve is arranged on the water outlet pipeline; a water outlet pipe of the high-pressure water pump is provided with an electric valve, the water outlet pipe is connected tothe high-pressure spray gun through a hose, and the high-pressure spray gun is installed on the movable trolley; and the wireless control box is connected to a power supply, the high-pressure water pump, the high-pressure spray gun, the high-temperature camera, the movable trolley and the infrared scanner in a wireless communication mode. According to the cleaning system and method, the automationlevel and efficiency of cleaning work are improved, the working environment of workers is improved, the labor intensity is reduced, the probability of safety accidents is reduced, and safe productionis guaranteed.

Description

technical field [0001] The invention belongs to the technical field of new dry-process cement production equipment, and in particular relates to a system and a method for cleaning the crust on the slope of the blanking slope of the kiln tail smoke chamber of the cement production line. Background technique [0002] In the new dry process cement production line, the smoke chamber is an important equipment connecting the rotary kiln and the calciner. into the rotary kiln. The section at the bottom of the smoke chamber and the rotary kiln is called the feeding slope. Since the new dry-process cement production line adopts the preheating and pre-decomposition technology, the temperature of the pre-heated and pre-decomposed raw meal generally reaches 850-900°C. After the hot raw meal enters the smoke chamber, it encounters the flue gas from the kiln at a temperature above 1000°C. In addition, the raw material and fuel contain harmful elements such as potassium, sodium, sulfur, ...

AI Technical Summary

Problems solved by technology

After the hot raw meal enters the smoke chamber, it encounters the flue gas from the kiln at a temperature above 1000°C. In addition, the raw material and fuel contain harmful elements such as potassium, sodium, sulfur, and chlorine. These elements are cyclically enriched between the rotary kiln and the kiln tail system. The melting point of the hot raw material is lowered, and the liquid phase is likely to appear prematurely and form a crust. The formation of the crust is likely to cause material accumulation and collapse, which affects the ventilation of the system and deteriorates the combustion efficiency. In severe cases, it will cause blockage and affect the continuity of the production line. run

Among them, the slope of the kiln tail smoke chamber is the most difficult to clean. Once a crust is formed, the material is easy to accumulate. It must be cleaned every time, otherwise it is easy to sinter and it is extremely difficult to clean; moreover, the temperature here is relatively high, which is likely to cause safety accidents

[0003] At present, the main methods for cleaning the crust on the slope of the kiln tail smoke chamber are: (1), using the air cannon: the air cannon will have a better effect on cleaning the blocking material, but the effect on cleaning the crust is poor; (2), manual cleaning: manual Cleaning requires steel drills, sledgehammers and other tools, which are labor-intensive and dangerous; (3) Use high-pressure water guns: when the crust is serious, use high-pressure water guns to clean after stopping the material; the above-mentioned manual cleaning methods and high-pressure water gun cleaning Both methods can thoroughly clean up the crust on the feeding slope, but since the temperature and temperature of the material here are usually above several hundred degrees, and the probability of positive pressure spraying after clogging is high, it is better to manually use steel brazing or high-pressure water gun to clear the clogging. a very dangerous job

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