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Fireproof material impregnation treatment process

A refractory material and impregnation treatment technology, applied in the field of refractory materials, can solve problems such as short service life of kiln, decrease in strength, and lower product quality, and achieve the goals of reducing the number of furnace shutdowns for maintenance, slowing down the speed of peeling, and reducing operating costs Effect

Inactive Publication Date: 2016-02-24
QINGDAO WEIYE FORGING & STAMPING MACHINERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the lagging of my country's industrial development, refractory materials or metal castings have been dragging the hind legs of products, as shown in: (1) The density of refractory materials or metal castings is low, resulting in the product medium produced at high temperature constantly from refractory materials or The pores of metal castings infiltrate into the interior, causing chemical changes in the composition of refractory materials or metal castings, and the refractoriness and strength are reduced accordingly; (2) The production of refractory materials in my country mostly adopts the production method of friction pressure forming, which causes softening under medium load The strength decreases and the kiln is deformed; (3) Due to the dynamic pressure forming process, the internal damage is serious, and the refractory material is easy to fall off in pieces during use
Due to the above reasons, the service life of the kiln made of refractory materials or metal castings is short, and the furnace has to be shut down for maintenance during production, which increases the operating cost of the kiln and reduces the quality of the products produced. More importantly, The most important thing is to turn a large amount of high-quality raw materials into industrial waste

Method used

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Effect test

Embodiment 1

[0015] The refractory impregnation treatment process of the present invention is to process according to the following process steps:

[0016] The first step is to put the refractory material into the impregnation container and seal it, use a vacuum pump to remove the internal air, and keep the vacuum for 75 minutes;

[0017] The second step is to open the liquid inlet valve of the pipeline connected with the immersion container, and input the aluminum dihydrogen phosphate liquid into the immersion container; when it is observed from the sight glass that the liquid is submerged in the refractory material or the metal casting, close the liquid inlet valve Close, stop the vacuum pump;

[0018] The third step is to open the vent valve so that the pressure inside the impregnation container and the outside world are balanced, and then close the vent valve;

[0019] The fourth step, turn on the air compressor to pressurize the impregnation container, and keep the pressure for 1.5 h...

Embodiment 2

[0022] The impregnation treatment process of refractory material or metal casting of the present invention is to process according to the following process steps:

[0023] The first step is to put the refractory material into the impregnation container and seal it, use a vacuum pump to remove the internal air, and keep the vacuum for 120 minutes;

[0024] The second step is to open the liquid inlet valve of the pipeline connected with the immersion container, or input the aluminum dihydrogen phosphate liquid into the immersion container; when it is observed from the sight glass that the liquid is submerged in the refractory material or metal casting, it will enter the liquid The valve is closed and the vacuum pump is stopped;

[0025] The third step is to open the vent valve so that the pressure inside the impregnation container and the outside world are balanced, and then close the vent valve;

[0026] The fourth step, turn on the air compressor to pressurize the impregnatio...

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PUM

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Abstract

The present invention provides a fireproof material impregnation treatment process, which comprises: 1, placing a fireproof material into an impregnation container, sealing, pumping out the internal air with a vacuum pump, and maintaining the vacuum for 60-120 min; 2, opening the liquid inlet valve of a pipeline communicated to the impregnation container, inputting an aluminum dihydrogen phosphate liquid into the impregnation container, closing the liquid inlet valve when the fireproof material is immersed by the liquid, and stopping the vacuum pump; 3, opening an emptying valve to make the pressure inside the impregnation container and the outside pressure achieve the balance, and then closing the emptying valve; 4, opening an air compressor, pressurizing the impregnation container, and maintaining the pressure for 0.5-3 h after the pressure is 0.1-3 MPa; and 5, opening the liquid inlet valve, discharging the liquid in the impregnation container, closing the liquid inlet valve and the air compressor, opening the impregnation container cover, taking out the fireproof material, and drying. According to the present invention, the service life of the fireproof material treated by the impregnation process is increased by 2-5 times.

Description

technical field [0001] The invention relates to the technical field of refractory materials, in particular to a refractory material impregnation treatment process. Background technique [0002] Refractory materials or metal castings are one of the indispensable materials for kilns producing metallurgy, ceramics, glass products, power generation, building materials and other products. Its quality directly determines the quality and cost of subsequent products. [0003] Due to the lagging of my country's industrial development, refractory materials or metal castings have been dragging the hind legs of products, as shown in: (1) The density of refractory materials or metal castings is low, resulting in the production of products at high temperatures. The pores of metal castings infiltrate into the interior, causing chemical changes in the composition of refractory materials or metal castings, and the refractoriness and strength decrease accordingly; (2) The production of refract...

Claims

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Application Information

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IPC IPC(8): C04B41/85
Inventor 张磊
Owner QINGDAO WEIYE FORGING & STAMPING MACHINERY CO LTD