CN105202919A - High-performance alkali-resistant bricks for cement rotary kiln tertiary air duct - Google Patents
High-performance alkali-resistant bricks for cement rotary kiln tertiary air duct Download PDFInfo
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- CN105202919A CN105202919A CN201510649605.8A CN201510649605A CN105202919A CN 105202919 A CN105202919 A CN 105202919A CN 201510649605 A CN201510649605 A CN 201510649605A CN 105202919 A CN105202919 A CN 105202919A
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- cement rotary
- air pipe
- alkali resistant
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Abstract
Provided are high-performance alkali-resistant bricks for a cement rotary kiln tertiary air duct. The alkali-resistant bricks are piled to form a barrel lining of the tertiary air duct, the barrel lining comprises multiple arc-shaped base bodies which are spliced to form a complete loop body, the inner surface and the outer surface of each base body are each shaped like a circular arc face, the two side faces connected with each circular arc face are tilted faces which are opposite to each other, round holes are formed in the upper surfaces of the base bodies, cylindrical bosses are arranged on the portions, corresponding to the round holes, of the lower surface, a dovetail groove which penetrates through the upper surface and the lower surface is formed in one side face of each base body, and a strip-shaped protruding block which is connected with the dovetail groove in a matched and inserted mode is arranged on the other side face of each base body. The high-performance alkali-resistant bricks for the cement rotary kiln tertiary air duct have the strong alkali corrosion resistance and the good heat insulation effect, and the service life is long.
Description
Technical field
The present invention relates to refractory material and make field, particularly relate to cement rotary kiln tertiary-air pipe refractory brick.
Background technology
Because new dry process rotary kiln tail gas need be used by pre-heating system and tertiary-air pipe, make heat material burn till hear rate greatly to reduce, but huge pre-heating system and tertiary-air pipe add cooling surface area, radiation loss is increased, therefore use a kind of high-quality wear-resisting, heat insulation material carrys out alternative existing Alkali resistant brick Cheng Liaoge manufacture of cement producer primary goal, and traditional refractory material mostly is high-alumina brick or clay brick, these two kinds of brick have a shortcoming, it is exactly not alkaline erosion, and service life is shorter, when piling up, sealing property is also poor, bonding strength is lower, have much room for improvement.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, provide and a kind of there is the cement rotary kiln tertiary-air pipe high-performance Alkali resistant brick that stronger alkaline erosion has again good effect of heat insulation.
For realizing the object of the invention, provide following technical scheme: cement rotary kiln tertiary-air pipe high-performance Alkali resistant brick, described Alkali resistant brick is piled into tertiary-air pipe cylinder lining, it is characterized in that comprising arc-shaped matrix, several matrixes are spliced into complete ring body, the surfaces externally and internally of matrix is arc surface, the two sides connected with arc surface are inclined plane in opposite directions, described body upper surface offers circular hole, the corresponding circular hole of lower surface offers cylindrical boss, described matrix one side offers the dovetail groove of through upper and lower surface, matrix another side is provided with the strip projection coordinating grafting with dovetail groove.
As preferably, described matrix is hollow brick, and body upper surface circular hole connects matrix inner chamber, and matrix inner chamber is filled with heat-insulating heat-preserving material by circular hole.
As preferably, be laid with some interlaced reinforcement gussets in matrix, several chambers will be divided in matrix.
As preferably, described matrix is high-frequency ceramic.
Beneficial effect of the present invention: the present invention, by certain moduli tool burning process, burns till a kind of sound construction, and the Alkali resistant brick of alkaline-resisting insulation, its technical indicator: bulk density >=2.20g/cm3 apparent porosity≤25% compressive resistance >=65Mpa.Thermal conductivity factor≤1.1w/m.k (350 DEG C) alkali resistance one-level, the research and development of this product successfully will effectively reduce tertiary-air pipe heat loss, the low 20-30 DEG C of resistance to material that its tertiary-air pipe surface temperature is built by laying bricks or stones than general clay brick or high-alumina brick, the heat energy of manufacture of cement producer is recycled be improved further, improve economic benefit accordingly.
Accompanying drawing explanation
Fig. 1 is splicing top view of the present invention.
Fig. 2 is the top view of single matrix in Fig. 1.
Fig. 3 is the sectional view of Fig. 2.
Detailed description of the invention
Embodiment 1: cement rotary kiln tertiary-air pipe high-performance Alkali resistant brick, described Alkali resistant brick is piled into tertiary-air pipe cylinder lining, comprise arc-shaped matrix 1, 4 matrixes 1 are spliced into complete ring body, the surfaces externally and internally (1.1 of matrix 1, 1.2) be arc surface, the two sides (1.3 connected with arc surface, 1.4) be inclined plane in opposite directions, described matrix 1 upper surface 1.5 offers circular hole 1.5.1, the corresponding circular hole 1.5.1 of lower surface 1.6 offers cylindrical boss 1.6.1, described matrix 1 one side 1.3 offers the dovetail groove 1.3.1 of through upper and lower surface, matrix 1 another side 1.4 is provided with the strip projection 1.4.1 coordinating grafting with dovetail groove 1.3.1.Described matrix 1 is hollow brick, and matrix 1 upper surface 1.5 circular hole 1.5.1 connects matrix 1 inner chamber, and matrix 1 inner chamber is filled with heat-insulating heat-preserving material 2 by circular hole 1.5.1.Be laid with 4 interlaced reinforcement gussets 1.7 in matrix 1, be divided into several chambers by matrix 1.Described matrix 1 is high-frequency ceramic.
Raw material is prepared: first select the exotic material of low-porosity to solve intensity and the heat-resisting quantity of product, therefore select a kind of useless high-frequency ceramic to be used as the main material of product.Next selects how empty grog to be used as auxiliary material.Product combines and then adopts chemical bond and Ceramic bond so both to ensure that the normal temperature strength of product and middle elevated temperature strength.
Firing of product, product forms through the high-temperature firing of more than 1350 DEG C after natural drying again, thus ensures that the indices of product is qualified, and particularly the refractoriness under load of product is greater than more than 1400 DEG C, improves the heat-resisting quantity of product further.
Physical and chemical index that is external and the application contrasts
Claims (4)
1. cement rotary kiln tertiary-air pipe high-performance Alkali resistant brick, described Alkali resistant brick is piled into tertiary-air pipe cylinder lining, it is characterized in that comprising arc-shaped matrix, several matrixes are spliced into complete ring body, the surfaces externally and internally of matrix is arc surface, the two sides connected with arc surface are inclined plane in opposite directions, described body upper surface offers circular hole, the corresponding circular hole of lower surface offers cylindrical boss, described matrix one side offers the dovetail groove of through upper and lower surface, matrix another side is provided with the strip projection coordinating grafting with dovetail groove.
2. cement rotary kiln tertiary-air pipe high-performance Alkali resistant brick according to claim 1, is characterized in that described matrix is hollow brick, and body upper surface circular hole connects matrix inner chamber, and matrix inner chamber is filled with heat-insulating heat-preserving material by circular hole.
3. cement rotary kiln tertiary-air pipe high-performance Alkali resistant brick according to claim 1, is characterized in that being laid with in matrix some interlaced reinforcement gussets, will be divided into several chambers in matrix.
4. cement rotary kiln tertiary-air pipe high-performance Alkali resistant brick according to claim 1, is characterized in that described matrix is high-frequency ceramic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510649605.8A CN105202919A (en) | 2015-10-10 | 2015-10-10 | High-performance alkali-resistant bricks for cement rotary kiln tertiary air duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510649605.8A CN105202919A (en) | 2015-10-10 | 2015-10-10 | High-performance alkali-resistant bricks for cement rotary kiln tertiary air duct |
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| CN105202919A true CN105202919A (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510649605.8A Pending CN105202919A (en) | 2015-10-10 | 2015-10-10 | High-performance alkali-resistant bricks for cement rotary kiln tertiary air duct |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2757578Y (en) * | 2004-12-29 | 2006-02-15 | 陈德炽 | Electric heating barbecue oven |
| CN202648408U (en) * | 2012-05-14 | 2013-01-02 | 河南金阳铝业有限公司 | Smelting kiln building brick |
| CN202938647U (en) * | 2012-10-19 | 2013-05-15 | 徐敏 | Anti-scouring fire-proof prefabricated brick for inner lining of kiln |
| CN104567350A (en) * | 2014-12-10 | 2015-04-29 | 浙江瑞泰耐火材料科技有限公司 | Low-heat-conductivity refractory brick |
| CN204612483U (en) * | 2015-04-04 | 2015-09-02 | 东台市宏大耐热材料有限公司 | There is the refractory brick of composite adiabatic structure |
| CN205138210U (en) * | 2015-10-10 | 2016-04-06 | 无锡兴达节能科技股份有限公司 | Alkaline -resisting brick of effective high performance of cement rotary kiln tertiary air |
-
2015
- 2015-10-10 CN CN201510649605.8A patent/CN105202919A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2757578Y (en) * | 2004-12-29 | 2006-02-15 | 陈德炽 | Electric heating barbecue oven |
| CN202648408U (en) * | 2012-05-14 | 2013-01-02 | 河南金阳铝业有限公司 | Smelting kiln building brick |
| CN202938647U (en) * | 2012-10-19 | 2013-05-15 | 徐敏 | Anti-scouring fire-proof prefabricated brick for inner lining of kiln |
| CN104567350A (en) * | 2014-12-10 | 2015-04-29 | 浙江瑞泰耐火材料科技有限公司 | Low-heat-conductivity refractory brick |
| CN204612483U (en) * | 2015-04-04 | 2015-09-02 | 东台市宏大耐热材料有限公司 | There is the refractory brick of composite adiabatic structure |
| CN205138210U (en) * | 2015-10-10 | 2016-04-06 | 无锡兴达节能科技股份有限公司 | Alkaline -resisting brick of effective high performance of cement rotary kiln tertiary air |
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Application publication date: 20151230 |
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| WD01 | Invention patent application deemed withdrawn after publication |