8-box 9-layer high-temp calciner

Abstract

A 8-chamber 9-layer high-temp calciner is composed of 8 coal calcining chambers in two rows, heating fire channel surrounding them, flue and chimney. The material feeding hopper and discharging hopper are respectively on the top and bottom of said calcining chambers. Its advantages are long service life, and high temp (1200-1300 deg.C).

Description

technical field [0001] The invention belongs to the structure of an industrial kiln, in particular to an eight-pot nine-layer calciner. Background technique [0002] The carbon calcination furnace currently used in China is a technology introduced from Japan and the former Soviet Union in the 1970s. The furnace type is 6 tanks and 3 layers. After the 1980s, it was changed to 6 tanks and 5 layers. After 1999, it was upgraded to 6 tanks and 9 layers of fire. The physical and chemical indicators of carbon, in the 1970s, the volatile matter could only be calcined to 2%, and the resistivity was 1600 ohms. After the 80s and 90s, the volatile matter could be calcined by 2%. , Since 1995, it has increased to 0.9%-1%, and the resistivity is about 1100 ohms. Compared with the electric calciner, there is still a big gap. Using the electric calciner, the volatile content reaches 0.6%, and the resistivity drops to about 800 ohms. , but the cost of the electric calciner is too high, and ...

AI Technical Summary

Problems solved by technology

[0002] The carbon calcination furnace currently used in China is a technology introduced from Japan and the former Soviet Union in the 1970s. The furnace type is 6 tanks and 3 layers. After the 1980s, it was changed to 6 tanks and 5 layers. After 1999, it was upgraded to 6 tanks and 9 layers of fire. The physical and chemical indicators of carbon, in the 1970s, the volatile matter could only be calcined to 2%, and the resistivity was 1600 ohms. After the 80s and 90s, the volatile matter could be calcined by 2%. , Since 1995, it has increased to 0.9%-1%, and the resistivity is about 1100 ohms. Compared with the electric calciner, there is still a big gap. Using the electric calciner, the volatile content reaches 0.6%, and the resistivity drops to about 800 ohms. , but the cost of the electric calciner is too high, and the power consumption is too large, resulting in high production costs

[0003] The Chinese patent "Carbon Furnace" (application number 00247722.X) discloses a technical solution, which is still a typical six-tank structure, the direction of the fire path is not particularly reasonable, the furnace temperature is not uniform enough, and the output and quality of carbon It cannot be compared with the electric calciner, and the waste heat cannot be fully recovered and utilized

Images