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Pushing plate, formed by burning magnetic material, for kiln, and preparation method of pushing plate

A magnetic material and firing kiln technology, applied in the field of kiln push plate and its preparation, can solve the problems of push plate stuck, use unit loss, etc., achieve extended service life, high thermal shock resistance stability, and simple preparation method easy effect

Active Publication Date: 2014-08-06
无锡顺佳特种陶瓷有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The kiln push plate is one of the most important parts in the kiln. It is made of corundum-mullite, and its service life is usually more than 6 months. At the same time, it cannot be broken, deformed or dropped during use. Otherwise, there will be an arch kiln accident, that is, the push plate is stuck in the channel, and the push plate machine cannot be pushed.

Method used

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  • Pushing plate, formed by burning magnetic material, for kiln, and preparation method of pushing plate
  • Pushing plate, formed by burning magnetic material, for kiln, and preparation method of pushing plate
  • Pushing plate, formed by burning magnetic material, for kiln, and preparation method of pushing plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Product formula: 3 parts of 3-1mm sintered mullite, 2 parts of 1-0.5mm and 2 parts of 0.5-0.1mm; 1.5 parts of fused white corundum below 200 mesh; free SiO 2 Calcined china clay in glass state is 1 part below 200 mesh, and Guangxi bonded clay is 0.5 part.

[0028] Production Process:

[0029] (1) Preparation of premix: Weigh fused white corundum and free SiO according to the above ratio 2 The calcined china clay and Guangxi bonded clay in glassy state are stirred and mixed for later use; wherein, the stirring is carried out in a conical stirring mixer, the stirring time is 40 rpm, and the stirring time is 1.5h.

[0030] (2) Preparation of mixture: take sintered mullite according to the above ratio, add premix and water successively after mud milling, and then mix and grind the material; Carry out in, mud milling time is 5 minutes, and mixing milling time is 25 minutes; The addition amount of described water is 0.3 part.

[0031] (3) Green body forming: the mixture is...

Embodiment 2

[0035] Product formula: 6 parts of sintered mullite 0.1-3mm; 1 part of fused white corundum below 325 mesh; free SiO 2 Calcined china clay in glass state is 0.5 parts below 200 mesh, and ordinary bonded clay is 0.3 parts.

[0036] Repeat the test according to the method steps of Example 1, but the stirring time is 30 revs / min, and the stirring time is 1h; the granular material mixing time is 6 minutes, after adding premix and water, the mixing milling time is 30 minutes; the water The addition amount of the green body is 0.5 parts; the green body molding pressure is 320Mpa; the green body firing temperature is 1500°C, and the firing time is 5 hours.

Embodiment 3

[0038] Product formula: 8 parts of sintered mullite 0.1-2mm; 2 parts of fused white corundum below 200 mesh; free SiO 2 Calcined china clay in glass state is 2 parts below 150 mesh, and Guangxi bonded clay is 0.6 part.

[0039] Repeat the test according to the method steps of Example 1, but the stirring time is 35 revs / min, and the stirring time is 1.2h; the granular material mixing time is 5.5 minutes, after adding premix and water, the mixing milling time is 38 minutes; The amount of water added is 0.4 parts; the green body molding pressure is 300Mpa; the green body firing temperature is 1550° C., and the firing time is 5.5 hours.

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PUM

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Abstract

The invention discloses a pushing plate, formed by burning a magnetic material, for a kiln, and a preparation method of the pushing plate. The pushing plate mainly comprises the following components: 6 to 8 parts of 3-0.1 mm sintered mullite, 1 to 2 parts of fused white corundum with meshes less than 325, 0.5 to 2 parts of molochite, in a glassy state, of free SiO2, and 0.3 to 0.6 part of binding clay. The preparation method for the pushing plate for the kiln comprises the steps of premix preparation, mixture preparation, green body formation, drying and firing. The pushing plate for the kiln has the advantages of high heat shock resistance stability, high intensity, prolonged service life and more objective economic benefits; the preparation method for the pushing plate for the kiln is simple and feasible, and is easy to realize.

Description

technical field [0001] The invention relates to a push plate for a kiln and a preparation method thereof, in particular to a push plate for a kiln for firing magnetic materials and a preparation method thereof. Background technique [0002] The pusher kiln is a commonly used thermal equipment in the chemical industry. At present, most magnetic materials are sintered in the pusher kiln. The working temperature of the kiln is between 1100°C and 1450°C, and it is protected by nitrogen filling. The kiln push plate is one of the most important parts in the kiln. It is made of corundum-mullite, and its service life is usually more than 6 months. At the same time, it cannot be broken, deformed or dropped during use. Otherwise, there will be an arch kiln accident, that is, the channel is blocked by the push plate, and the push plate machine cannot be pushed. The reason: the push plate kiln is cyclically produced, and the push plate used in the kiln needs to withstand relatively fr...

Claims

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Application Information

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IPC IPC(8): C04B35/66
Inventor 邵顺芳朱义文
Owner 无锡顺佳特种陶瓷有限公司