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Lost foam shell-shaped furnace pipe for electric furnace lining and application method thereof

A lost foam and shell-shaped technology, applied in the direction of the overall lining, can solve the problems of increasing the cost of use, reducing the service life of the furnace lining, easy cracking and falling off of the furnace lining material, etc., to achieve high refractoriness, improve service life, and save electricity.

Pending Publication Date: 2021-12-31
SHAANXI YUANDA NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantages: The lining material supported by the steel furnace is melted together with the metal material, which is a one-time consumable item, which increases the cost of use;
Disadvantages: After the steel furnace is pulled out, the granular furnace lining filling material is easy to crack and fall off without the fixed support of the furnace lining, which reduces the service life of the furnace lining

Method used

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  • Lost foam shell-shaped furnace pipe for electric furnace lining and application method thereof
  • Lost foam shell-shaped furnace pipe for electric furnace lining and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1--a lost-form shell-shaped furnace lining for an electric furnace lining.

[0026] A lost-form shell-shaped furnace lining for an electric furnace is made of a lost-foam model b by heating volatile materials, and a layer of high-temperature refractory coating is coated on the surface of the lost-foam model b to form a refractory coating shell c, forming a refractory coating One side of the shell-shaped c is connected to the surface of the lost foam model b, and the other side is connected to the peripheral granular furnace lining in the furnace.

[0027] Preferably, the heating volatile material is volatile polyphenylene resin EPS.

Embodiment 2

[0028] Embodiment 2--a method of using a lost-form shell-shaped furnace lining for an electric furnace lining.

[0029] A method for using a lost-form shell-shaped furnace lining for an electric furnace lining, the steps are as follows:

[0030] Step 1: The disappearing foam model b made of heated volatile materials is fixedly placed in the electric furnace as a furnace, and the disappearing foam model b has a built-in positioning steel pipe a;

[0031] Step 2: Coating a high-temperature refractory coating on the surface of the vanishing foam model b to make a refractory coating shell shape c;

[0032] Step 3: The gap between the shell shape and the inside of the electric furnace is filled tightly with the outer lining granular material d;

[0033] Step 4: Heating the positioning steel pipe a to gasify and ablate the disappearing foam model b, leaving the refractory coating shell c and the surrounding furnace lining granular material d to form a support.

[0034] Preferably,...

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PUM

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Abstract

The invention relates to a lost foam shell-shaped furnace pipe for an electric furnace lining and an application method thereof. The application method includes the steps that 1, a lost foam model made of heating volatile materials is fixedly placed in an electric furnace to serve as the furnace pipe, and a positioning steel pipe is arranged in the lost foam model; 2, the surface of the lost foam model is coated with a high-temperature refractory coating to form a refractory coating shell; 3, a gap between the shell shape and the interior of the electric furnace is tightly filled with peripheral furnace lining particles; and 4, the positioning steel pipe is heated, so that the lost foam model is gasified and ablated, and a refractory coating shell shape and the peripheral furnace lining particles are left to form a support. According to the lost foam shell-shaped furnace pipe for the electric furnace lining and the application method thereof provided by the invention, the furnace pipe made of the lost foam model replaces a steel shell furnace pipe, the manufacturing cost is low, the peripheral furnace lining particles do not need to be baked and sintered through power transmission, the electric charge is saved, the refractory coating shell shape has the forming and supporting effects on the peripheral furnace lining particles, the refractoriness of the refractory coating shell shape is higher, and the service life of the peripheral furnace lining particles is prolonged.

Description

technical field [0001] The invention belongs to the technical field of precision casting industrial equipment, and in particular relates to a lost-form shell-shaped furnace lining for an electric furnace lining and a use method thereof. Background technique [0002] Refractory lining is the main heat insulation material for melting metal in electric furnace equipment, which prevents direct contact between high-temperature molten metal and electric furnace equipment, and plays a role in protecting electric furnace equipment. The furnace lining is the main tool for fixing the loose refractory lining. The commonly used refractory lining materials are mixed in proportion to different particle sizes. It is loose granular at room temperature. The furnace lining mainly fixes and shapes the granular refractory materials. Time and temperature are used to bake the furnace lining material to complete curing and sintering. [0003] How to use the traditional steel shell furnace: [00...

Claims

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Application Information

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IPC IPC(8): F27D1/10
CPCF27D1/10
Inventor 解戈奇
Owner SHAANXI YUANDA NEW MATERIAL TECH