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A kind of 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 heavy roughening and masonry labor, high requirements for the quality of the furnace paste, and reduced life of the furnace bottom, etc., to achieve tight lap joints, The effect of low labor intensity and fast assembly

Active Publication Date: 2022-07-19
SCEGC EQUIP INSTALLATION GRP COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

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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  • A kind of construction method of yellow phosphorus electric furnace bottom
  • A kind of construction method of yellow phosphorus electric furnace bottom

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Embodiment Construction

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

[0026] The present invention selects a graphite electrode with a mature technology of 400mm in the current market as the carbon material for the furnace bottom lining, is connected to the required length of the furnace bottom through a graphite threaded joint, and is stacked in three layers, and the surface is filled with electrode paste to level it. , the periphery of the furnace wall is compacted with traditional carbon bricks, and it becomes a graphite electrode type furnace bottom. The specific construction method includes the following steps:

[0027] (1) The carbon material at the bottom of the furnace is a graphite electrode with a diameter of 400mm, which is currently on the market. There are many manufacturers, the technology is mature, the quality is guaranteed, and the price is relatively low. At present, the largest graphite electrode with a diameter of 7...

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Abstract

The invention relates to a construction method for the furnace bottom of a yellow phosphorus electric furnace. Several graphite electrodes are connected to obtain an assembled graphite electrode, and several layers of the assembled graphite electrodes are laid on the furnace bottom, and a gap between two adjacent layers of graphite electrodes is formed. Fill the electrode paste. The invention realizes the problem of the construction quality control accuracy of the carbon material at the bottom of the furnace, and successfully solves the problem of the furnace bottom burn-through accident caused by improper material selection, masonry, and oven of the bottom carbon material of the yellow phosphorus electric furnace.

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 ℃ under the action of electric heating, and the phosphate rock is melted, and the oxidized phosphorus in the phosphate rock undergoes a reduction reaction with pyrodin to obtain gaseous elemental phosphorus, which can be condensed to obtain industrial yellow phosphorus. product. The yellow phosphorus electric furnace for reduction reaction needs to withstand harsh environments such as high temperature, high current, and corrosiveness. It is a typical reactor integrating electrical engineering, thermal engineering and chemical industry. The bottom of the furnace is submerged in molten phosphorus iron and slag,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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