Refractory material for grate cooler, suspension structure and construction method

A technology of refractory materials and suspension structures, applied in the field of grate coolers, can solve the problems of short service life, poor refractory effect, and short service life of grate coolers, and improve poor refractoriness, facilitate subsequent disassembly, Effect of improving flexural strength and compressive strength

Pending Publication Date: 2021-08-31
郑州建信耐火材料成套有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The grate cooler is generally made of refractory bricks, but the existing refractory materials made of refractory bricks have poor stability and poor refractory effect, which leads to the short service life and short service life of the existing grate cooler

Method used

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  • Refractory material for grate cooler, suspension structure and construction method
  • Refractory material for grate cooler, suspension structure and construction method
  • Refractory material for grate cooler, suspension structure and construction method

Examples

Experimental program
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Effect test

Embodiment 1

[0034] In an embodiment of the present invention, a refractory material for a grate cooler, the refractory material for a grate cooler includes the following raw materials in parts by weight: 80 parts of high-purity mullite, 60 parts of clay, 20 parts of large particle andalusite, small particle 6 parts of andalusite, 16 parts of cermet, 6 parts of fused mullite, 12 parts of white corundum, 4 parts of α-alumina, 2 parts of magnesium silicate, and 6 parts of binder.

[0035] The binding agent 9 adopts aluminum dihydrogen phosphate, phosphoric acid or PA80 glue.

[0036] The method for preparing the refractory material for the grate cooler comprises the following steps:

[0037] The raw materials of high-purity mullite, clay, cermet, fused mullite, and white corundum are crushed, ground, and sieved to obtain high-purity mullite, clay, cermet, fused mullite, and white corundum powder. Mixing the above powders to obtain the primary mix;

[0038] Add large-grained andalusite, sma...

Embodiment 2

[0041] In an embodiment of the present invention, a refractory material for a grate cooler, the refractory material for a grate cooler includes the following raw materials in parts by weight: 85 parts of high-purity mullite, 55 parts of clay, 18 parts of large particle andalusite, small particle 7 parts of andalusite, 15 parts of cermet, 7 parts of fused mullite, 13 parts of white corundum, 5 parts of α-alumina, 2.5 parts of magnesium silicate, 7 parts of binder.

[0042] The binding agent 9 adopts aluminum dihydrogen phosphate, phosphoric acid or PA80 glue.

[0043] The method for preparing the refractory material for the grate cooler comprises the following steps:

[0044] The raw materials of high-purity mullite, clay, cermet, fused mullite, and white corundum are crushed, ground, and sieved to obtain high-purity mullite, clay, cermet, fused mullite, and white corundum powder. The above powders are mixed to obtain the primary mix;

[0045] Add large-grained andalusite, sm...

Embodiment 3

[0048] In an embodiment of the present invention, a refractory material for a grate cooler, the refractory material for a grate cooler includes the following raw materials in parts by weight: 90 parts of high-purity mullite, 50 parts of clay, 16 parts of large particle andalusite, small particle 8 parts of andalusite, 14 parts of cermet, 8 parts of fused mullite, 14 parts of white corundum, 6 parts of α-alumina, 3 parts of magnesium silicate, and 8 parts of binder.

[0049] The binding agent 9 adopts aluminum dihydrogen phosphate, phosphoric acid or PA80 glue.

[0050]The method for preparing the refractory material for the grate cooler comprises the following steps:

[0051] The raw materials of high-purity mullite, clay, cermet, fused mullite, and white corundum are crushed, ground, and sieved to obtain high-purity mullite, clay, cermet, fused mullite, and white corundum powder. The above powders are mixed to obtain the primary mix;

[0052] Add large-grained andalusite, s...

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Abstract

The invention relates to a refractory material for a grate cooler, a suspension structure and a construction method. The refractory material for a grate cooler is prepared from the following raw materials in parts by weight: 80 to 100 parts of high-purity mullite, 40 to 60 parts of clay, 12 to 20 parts of large-particle andalusite, 6 to 10 parts of small-particle andalusite, 12 to 16 parts of metal ceramic, 6 to 10 parts of fused mullite, 12 to 15 parts of white corundum, 4 to 8 parts of alpha-aluminum oxide, 2 to 4 parts of magnesium silicate and 6 to 9 parts of a binding agent. The preparation method is novel in design, the refractory material for a grate cooler prepared through the preparation method has good thermal stability, a good solid-phase structure is formed after sintering, a stable internal structure is formed during high-temperature sintering, the breaking strength and compression strength of a product are improved, and the defect that an alkaline refractory material is poor in fire resistance is overcome.

Description

technical field [0001] The invention relates to the related technical field of grate coolers, in particular to a refractory material for grate coolers, a suspension structure and a construction method. Background technique [0002] The grate cooler is an important host equipment in the clinker firing system of a cement plant. Its main function is to cool and transport cement clinker; at the same time, it provides hot air for the rotary kiln and calciner, which is the main heat recovery system for the firing system. equipment. [0003] The third-generation grate cooler used for cooling cement clinker generally includes a static grate plate set on a static beam, a dynamic grate plate set on a movable beam, the static grate plate and the movable grate plate are arranged at intervals, and the static beam and the movable grate plate are arranged at intervals. Cooling air pipes are arranged on the beams, and the cooling air passes through the cooling air pipes to cool the clinker...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66C04B35/185F27D15/02
CPCC04B35/66C04B35/185F27D15/022C04B2235/3463C04B2235/3217C04B2235/3445C04B2235/447
Inventor 慕思源慕松坡郭永奇卢建舟张志远王一清
Owner 郑州建信耐火材料成套有限公司
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