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Construction method of yellow phosphorus electric furnace bottom

A construction method and technology of an electric furnace, applied in the construction field of the bottom of a yellow phosphorus electric furnace, can solve the problems of high labor intensity for roughening and masonry, high requirements for the quality of the furnace paste, and reduced life of the furnace bottom, etc., to achieve tight lap joints, Fast assembly and reduced difficulty

Active Publication Date: 2020-12-18
SCEGC EQUIP INSTALLATION GRP COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

Disadvantages: The five surfaces of carbon bricks need to be roughened, and the roughening and masonry are labor-intensive and the environment is harsh
Disadvantages: The quality of the furnace paste is high, the oven process is highly professional, and the control is difficult. Once the oven fails, the life of the bottom of the furnace will be greatly reduced.

Method used

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  • Construction method of yellow phosphorus electric furnace bottom
  • Construction method of yellow phosphorus electric furnace bottom

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Embodiment Construction

[0025] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0026] The present invention selects graphite electrodes with a diameter of 400mm that are currently on the market as the carbon material lining the furnace bottom, and connects them to the required length of the furnace bottom through graphite threaded joints. It is formed by stacking three layers, and the surface is filled with electrode paste for leveling. , The periphery of the furnace wall is inlaid and compacted with traditional carbon bricks to form a graphite electrode type furnace bottom. The specific construction method includes the following steps:

[0027] (1) The bottom carbon material is graphite electrodes with a diameter of 400 mm that are currently on the market. There are many manufacturers with mature technology, guaranteed quality and relatively low price. At present, the largest graphite electrode in China with a diameter of 700mm can be produc...

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Abstract

The invention relates to a construction method of a yellow phosphorus electric furnace bottom. The construction method comprises the following steps of connecting a plurality of graphite electrodes toobtain the assembled graphite electrodes, laying a plurality of layers of assembled graphite electrodes at the furnace bottom, and filling electrode paste into gaps between every two adjacent layersof graphite electrodes. According to the method, the problem of control precision of the construction quality of a carbon material at the furnace bottom is solved, and the problem of furnace bottom burn-through accidents caused by improper material selection, masonry and baking of the carbon material of the yellow phosphorus electric furnace bottom is successfully solved.

Description

technical field [0001] The invention relates to a construction method for the bottom of a yellow phosphorus electric furnace. Background technique [0002] As the foundation of phosphorus chemical industry, yellow phosphorus industry plays an indispensable role in the national economy. The production of yellow phosphorus needs to reach a high temperature of about 1500°C under the action of electric heat to dissolve the phosphate rock, and the oxidized phosphorus in the phosphate rock undergoes a reduction reaction with coke to obtain gaseous elemental phosphorus, which can then be condensed to obtain industrial yellow phosphorus. product. The yellow phosphorus electric furnace for the reduction reaction needs to withstand harsh environments such as high temperature, high current, and corrosiveness. It is a typical reactor integrating electrical, thermal, and chemical engineering. The bottom of the furnace is submerged in molten ferrophosphorus and slag, and bears a high te...

Claims

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Application Information

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IPC IPC(8): F27D1/00F27D1/04F27D1/18F27D11/10
CPCF27D1/0043F27D11/10F27D1/04F27D1/18
Inventor 杜建学张利国董永堂何锦标苏豪胡春林孙伟斌
Owner SCEGC EQUIP INSTALLATION GRP COMPANY
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