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Yellow phosphorus electric furnace electrode baking method capable of avoiding damage to furnace bottom

A technology for avoiding damage to electric furnace electrodes, applied in hearth furnaces, furnaces, drying, etc., can solve the problems of large current generation, high steel plate density, and large impact on the bottom of the furnace, so as to achieve soft current conduction and reduce consumables The effect of dosage and improvement of production efficiency

Active Publication Date: 2018-03-09
云南澄江华业磷化工有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] In this method, due to the high density of the steel plate, a large current will be generated when the electrode and its arc are struck, which will have a large impact on the bottom of the furnace. In severe cases, the bottom of the furnace will even be broken down, causing serious accidents.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The capacity of the yellow phosphorus electric furnace described in this embodiment is 10000KVA, and its furnace inner wall is provided with materials such as water glass and refractory mud paved asbestos boards, refractory bricks, silica, electrode paste, etc., and the front section of the oven is carried out according to the temperature rise curve of the front section of the oven. After cooling in the belt furnace, carry out the post-stage oven. First, confirm that all equipment is in the correct state, check that the sundries built in the furnace have been removed from the furnace, and purged with air. Place a temperature-measuring thermocouple on the bottom of the furnace to measure the temperature of the oven; put 2000kg of silica into the furnace, pile it up between the electrode at the bottom of the furnace and the furnace wall, and then spread coke on the silica and under the electrode end, the thickness of the coke is 500mm , the dosage is 1500kg, then adjust th...

Embodiment 2

[0029] The capacity of the yellow phosphorus electric furnace described in this embodiment is 5000KVA, and its furnace inner wall is provided with materials such as asbestos boards paved with water glass and refractory mud, refractory bricks, silica, electrode paste, etc., and the front-end oven is carried out according to the heating curve of the front-end oven. After cooling in the belt furnace, carry out the post-stage oven. First, confirm that all equipment is in the correct state, check that the sundries built in the furnace have been removed from the furnace, and purged with air. Place a temperature-measuring thermocouple at the bottom of the furnace to measure the temperature of the oven; put 1200kg of clay bricks made of refractory clay into the furnace, pile them up between the electrodes at the bottom of the furnace and the furnace wall, and then place them on the clay bricks made of refractory clay and at the electrode end Spread the coke under the head, the thicknes...

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Abstract

The invention provides a yellow phosphorus electric furnace electrode baking method capable of avoiding damage to a furnace bottom, and relates to the technical field of phosphorus chemical equipment.In an existing electrode baking process, due to the fact that the density of a steel plate is large, a large instantaneous current can be generated when an electrode is in contact with the steel plate, the impact on the furnace bottom is large, the furnace bottom even can be broken down if the impact is serious, and serious accidents can be caused. According to the yellow phosphorus electric furnace electrode baking method, a small-coke combined low-voltage arc-striking electrode baking mode is adopted, operation of rear-section baking is simplified, the impact on the furnace bottom is reduced, the hidden danger of damage to the furnace bottom and the electrode is eliminated, materials used for arc striking are reduced, and cost of baking is also reduced. The electrode baking method has the advantage that after the operation is completed, phosphate rock can be directly put into the electric furnace for normal yellow phosphorus production, and production efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of phosphorus chemical equipment, in particular to a yellow phosphorus electric furnace electrode drying method. Background technique [0002] The electric furnace is the core equipment for yellow phosphorus production, and its design should meet the requirements of electrical performance, heat distribution, chemical reaction and other aspects. [0003] The start-up process of the yellow phosphorus electric furnace is relatively complicated, and the temperature needs to be raised gradually according to the temperature curve, that is, the oven process. According to the different stages, it is divided into a front-end oven and a back-end oven. Smelting can only begin after the oven is completed. [0004] The front-end oven is carried out to ensure the performance of refractory bricks after the refractory materials inside the phosphorus furnace are built. The main function is to dry, roast and carbonize the con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F26B3/00
CPCF26B3/00
Inventor 文光业润东业润彬刘嵩鲁德华李俊坤赵华
Owner 云南澄江华业磷化工有限责任公司