Water-cooling type hearth plate of petroleum coke tank-type calcining furnace

Abstract

The invention discloses a water-cooling type hearth plate of a petroleum coke tank-type calcining furnace, and belongs to the technical field of petroleum coke tank-type calcining furnaces. An annular water sleeve inner plate (4) and an annular water sleeve outer plate (3) are fixedly connected between an upper flat plate (1) and a lower flange plate (6), the water sleeve inner plate (4), the water sleeve outer plate (3), the upper flat plate (1) and the lower flange plate (6) form a sealed annular cooling sleeve (11) in a surrounding mode, the lower end surface of the upper flat plate (1) is provided with an annular cooling half pipe (2) at the outer side of the water sleeve outer plate (3), the annular cooling half pipe (2) and the upper flat plate (1) form a sealed annular cooling water passage (12), the annular cooling water passage (12) is communicated with the annular cooling sleeve (11) through a connecting half pipe (8), and annular cooling water passage (12) is communicated with a water outlet pipe (10). The water-cooling type hearth plate of the petroleum coke tank-type calcining furnace has the advantages of lowering the temperature of the hearth plate, improving the work reliability of the hearth plate and the like.

Description

technical field [0001] A water-cooled furnace bottom plate of a petroleum coke can-type calciner belongs to the technical field of petroleum coke can-type calciners, and in particular relates to a water-cooled bottom plate of a petroleum coke can-type calciner. Background technique [0002] Petroleum coke is calcined at high temperature (about 1350°C) to remove its volatile matter, and then completely carbonized to form calcined coke. Calcined coke is widely used in the production of aluminum electrolytic anodes, graphite electrodes for steelmaking, recarburizers, industrial silicon and other carbon products. It is an important basic raw material and is mainly produced by tank calciners. The advantage of the pot calciner is that the calcined coke has good quality and low oxidation loss. The heat energy required for the calcining process is completely provided by the heat released by the combustion of volatile components of petroleum coke, without adding auxiliary fuel, and t...

AI Technical Summary

Problems solved by technology

The above furnace bottom plate structure has the following problems: (1) The temperature of the furnace bottom plate is very high, and a large amount of heat is radiated to the environment, which not only causes a huge waste of heat, but also causes the ambient temperature to be too high and the working environment is bad, which is not conducive to the normal operation of personnel and other facilities. (2) The temperature of the furnace bottom plate is high and the temperature difference is large, and deformation and cracking problems often occur, which affect the normal operation of the calciner; (3) The temperature difference between the inner side and the outer periphery of the furnace bottom plate is large, and the thermal expansion is uneven, which is easy to cause the furnace body to crack

Images