Anode roasting furnace uninterrupted negative pressure furnace moving method

Abstract

This invention relates to a method for negative pressure moving furnace of anode roasting furnace without stop, belonging to technical field of pre-roasting anode production, comprising smoke exhaustbracket movement, heating bracket movement and bracket for measuring temperature and pressure movement. The smoke exhaust bracket movement includes corresponding operation of an adjusting valve; the heating bracket movement includes movements of thermocouple bracket and burner base; the bracket of measuring temperature and pressure movement includes movements of thermocouple and sensor; wherein the method of moving the smoke exhaust bracket is: (1) before moving the furnace, mounting a standby throttle plate at a first hole of a standby furnace room, and adjusting; (2) pre-displacing a standbysmoke exhaust bracket at a fourth hole of the next furnace room and connecting a control line; (3) opening the adjusting valve of the smoke exhaust bracket; (4) closing and hanging the adjusting valve of the smoke exhaust bracket to be moved; (5) quickly covering a furnace cover. This invention has short time to move furnace, good safety, no pollution and waste, low cost; and this invention is infavor of ensuring the product quality of the anode.

Description

technical field [0001] The invention relates to an uninterrupted negative pressure shifting method for an anode roasting furnace, which belongs to the technical field of prebaked anode production. Background technique [0002] The anode roaster has 34 furnace chambers, which are divided into two parallel rows, each row has 17 furnace chambers, and the ends are connected by crossover flues; from one furnace chamber to another furnace chamber, the flue wall in the same column is connected with the transverse wall . The traditional method of moving the open ring roaster is the intermittent negative pressure moving method. The whole process includes the movement of the exhaust rack, the movement of the heating rack, the movement of the temperature and pressure measuring rack, and the disassembly and assembly of the interceptor plate. When moving the exhaust rack, it is necessary to open the fourth observation hole of 1P (P stands for the furnace chamber); when moving the heatin...

AI Technical Summary

Problems solved by technology

During this period, the roasting heating system loses negative pressure, and a large amount of volatile matter escapes. On the one hand, it pollutes the working environment. The volatile matter contains more than 10 kinds of polycyclic aromatic hydrocarbons that are harmful to humans, including 3 and 4 phenylpropanoids, which are highly carcinogenic. On the other hand, volatile matter is an important fuel in the roasting process. A large amount of volatile matter escapes from the fire path, which will inevitably cause waste of fuel. Moreover, during the furnace moving process, volatile matter is continuously enriched in the fire path. When the volatile matter When the concentration reaches a certain level, once it encounters an open flame, it will cause an explosion, which is quite dangerous.

At the same time, during the process of moving the furnace, the negative pressure in the furnace chamber in the heating stage is interrupted, which leads to the failure of normal combustion, resulting in fluctuations in the temperature of the flue, which also seriously affects the quality of the anode