CN102419084A - Kiln body of cement shaft kiln - Google Patents
Kiln body of cement shaft kiln Download PDFInfo
- Publication number
- CN102419084A CN102419084A CN2011103640580A CN201110364058A CN102419084A CN 102419084 A CN102419084 A CN 102419084A CN 2011103640580 A CN2011103640580 A CN 2011103640580A CN 201110364058 A CN201110364058 A CN 201110364058A CN 102419084 A CN102419084 A CN 102419084A
- Authority
- CN
- China
- Prior art keywords
- kiln
- bricks
- brick
- cement
- siliceous mullite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004568 cement Substances 0.000 title claims abstract description 19
- 239000011449 brick Substances 0.000 claims abstract description 41
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052863 mullite Inorganic materials 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims description 12
- 238000009413 insulation Methods 0.000 claims description 9
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 8
- 239000000919 ceramic Substances 0.000 claims description 5
- 238000010792 warming Methods 0.000 claims description 4
- 239000004927 clay Substances 0.000 abstract description 4
- 238000009423 ventilation Methods 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract description 2
- 229910052918 calcium silicate Inorganic materials 0.000 abstract description 2
- 239000000378 calcium silicate Substances 0.000 abstract description 2
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 abstract description 2
- 230000003628 erosive effect Effects 0.000 abstract description 2
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- 239000002131 composite material Substances 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 238000004321 preservation Methods 0.000 abstract 1
- 239000011819 refractory material Substances 0.000 description 4
- 206010008190 Cerebrovascular accident Diseases 0.000 description 2
- 208000006011 Stroke Diseases 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000004645 aluminates Chemical class 0.000 description 1
- HIGRAKVNKLCVCA-UHFFFAOYSA-N alumine Chemical compound C1=CC=[Al]C=C1 HIGRAKVNKLCVCA-UHFFFAOYSA-N 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
Images
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- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The invention discloses a kiln body of a cement shaft kiln. The kiln body comprises a vertical tube part and a flare opening part, and comprises a high-temperature layer, a castable layer and a thermal insulating layer sequentially from inside to outside, wherein the high-temperature layer of the vertical tube part is enclosed by laying high-aluminum bricks; the high-temperature layer of the flare opening part is enclosed by laying siliceous mullite bricks; and the waist part of the vertical tube part is provided with a through air duct. By the technical scheme, the flare opening part adopts a composite lining structure comprising the siliceous mullite bricks and clay bricks, wherein the siliceous mullite bricks have erosion resistance and abrasion resistance, and the clay bricks decrease the construction cost of a lining; and a calcium silicate plate and thermal insulating bricks of the thermal insulating layer well realize heat preservation and energy saving functions. The air duct on the waist part can effectively eliminate the deflected burning of the shaft kiln, improve ventilation uniformity and middle wind in the kiln, improve the machine-hour output of the shaft kiln and strengthen the compressive strength of clinkers.
Description
Technical field
The present invention relates to a kind of cement in vertical kiln kiln body.
Background technology
The kiln body of cement in vertical kiln is made up of the straight drum part of bottom and the horn mouth on top.Wherein, horn mouth is the main position that the cement kiln material burns till reaction.Under the firing temperature, the refractory material kickback at cement kiln material and horn mouth place corrodes refractory material, shortens the service life of refractory material.On the other hand, part kiln material is bonded in the horn mouth surface, forms sticking limit, and overslaugh kiln material is descending smoothly, becomes the obstacle that disturbs shaft kiln to produce.
Summary of the invention
Technical problem to be solved by this invention provides a kind of cement in vertical kiln kiln body, has premium properties such as anti-erosion, wear-resistant, not sticking limit, low heat conduction, low cost.
For solving the problems of the technologies described above; The present invention adopts following technical scheme: cement in vertical kiln kiln body; Comprise straight drum part and horn section, said kiln body comprises heat zone, the cast bed of material and thermal insulation layer from inside to outside successively, and the heat zone of said straight drum part is formed by the high-alumina brick brick work; The heat zone of said horn section is formed by the siliceous mullite brick brick work, and the waist of said straight drum part is provided with straight-through airduct.
As preferably, said airduct is circular.
As preferably, said straight drum part is provided with the thermocouple installing hole in the position near horn section.
As preferably, the inside upper part of said high-alumina brick is provided with chamfering.
As preferably, said thermal insulation layer comprises ceramic warming plate and porous heat-insulating brick from inside to outside successively, and the thickness of said porous heat-insulating brick is 300 ± 100mm.
The present invention is owing to adopted technique scheme; Horn section adopts the compound lining structure of siliceous mullite brick and clay brick; Siliceous mullite brick performance anti-erosion, anti abrasive effect, clay brick reduces the lining cost, and the calcium silicate board of thermal insulation layer and insulating brick produce good insulation, energy-conserving action.The airduct of waist can be eliminated shaft kiln fiery partially phenomenon that takes place and the improvement that improves all even apoplexy of kiln ventilation effectively, can improve the unit-hour output of shaft kiln, can improve the compression strength of grog.
Description of drawings
Fig. 1 is the structural representation of cement in vertical kiln kiln body of the present invention
Fig. 2 is the partial enlarged drawing of cement in vertical kiln kiln body one side of the present invention
The specific embodiment
Further describe below in conjunction with the accompanying drawing specific embodiments of the invention.
Illustrated in figures 1 and 2 is cement in vertical kiln kiln body of the present invention; Comprise straight drum part and horn section; Said kiln body comprises heat zone 1, the cast bed of material 2 and thermal insulation layer 3 from inside to outside successively; The heat zone of said straight drum part is formed by high-alumina brick 11 brick works, and the heat zone of said horn section is formed by siliceous mullite brick 12 brick works, and the waist of said straight drum part is provided with straight-through airduct 4.The airduct of waist can be eliminated shaft kiln fiery partially phenomenon that takes place and the improvement that improves all even apoplexy of kiln ventilation effectively, can improve the unit-hour output of shaft kiln, can improve the compression strength of grog.
Said straight drum part is provided with thermocouple installing hole 5 in the position near horn section, is convenient to assign temperature thermocouple.
The inside upper part of said high-alumina brick 11 is provided with chamfering 111.This high-alumina brick 11 is built the formation air guide structure by laying bricks or stones, after the normal operation of igniting, can progressively enlarge the voidage between the material, reduces flowing resistance, improves unit production capacity and grog unit-hour output.
Said thermal insulation layer 3 comprises ceramic warming plate 31 and porous heat-insulating brick 32 from inside to outside successively, and the thickness of said porous heat-insulating brick 32 is 300mm.Pottery warming plate 31 is made up of materials such as ceramic fibre, aluminosilicate refractory fibers respectively with porous heat-insulating brick 32; For surface temperature and the unlikely raising of radiation loss that guarantees cement in vertical kiln kiln body; Adopt this energy-saving supporting insulation material that kiln surface temperature and radiation loss are reduced greatly; Kiln inner edge wall temperature improves, and the section temperature field gradient tends to balance, and then improves the calcining situation.
The reason on generation erosion of horn mouth place and sticking limit is the reaction of clinker and high alumina refractories.Siliceous mullite brick system is the commercially available silicon fire resistant materials not of principal component with alumine, carborundum, and the reason that siliceous mullite brick has better anti-erosion, abrasion resistance properties is that the SiC in the siliceous mullite brick at first is oxidized to SiO gas; SiO gas diffuses to the brick surface, and becomes SiO at surface oxidation
2Subsequently, SiO
2Form enamel on the brick surface, the shutoff pore slows down the service life of corroding and improving material.
The cast bed of material is aggregate (graininess) by light ceramic and grog, makes bond with aluminate cement, suitably add the lightweight coal ash powder and float other insulation material such as pearl, additive is formulated in right amount, has characteristics such as intensity is moderate, heat insulation effect is good.
Claims (5)
1. cement in vertical kiln kiln body; Comprise straight drum part and horn section; Said kiln body comprises heat zone (1), the cast bed of material (2) and thermal insulation layer (3) from inside to outside successively; It is characterized in that: the heat zone of said straight drum part is formed by high-alumina brick (11) brick work, and the heat zone of said horn section is formed by siliceous mullite brick (12) brick work, and the waist of said straight drum part is provided with straight-through airduct (4).
2. according to the said cement in vertical kiln kiln of claim 1 body, it is characterized in that: said airduct (4) is for circular.
3. according to the said cement in vertical kiln kiln of claim 1 body, it is characterized in that: said straight drum part is provided with thermocouple installing hole (5) in the position near horn section.
4. according to the said cement in vertical kiln kiln of claim 1 body, it is characterized in that: the inside upper part of said high-alumina brick (11) is provided with chamfering (111).
5. according to the said cement in vertical kiln kiln of claim 1 body, it is characterized in that: said thermal insulation layer (3) comprises ceramic warming plate (31) and porous heat-insulating brick (32) from inside to outside successively, and the thickness of said porous heat-insulating brick (32) is 300 ± 100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103640580A CN102419084A (en) | 2011-11-16 | 2011-11-16 | Kiln body of cement shaft kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103640580A CN102419084A (en) | 2011-11-16 | 2011-11-16 | Kiln body of cement shaft kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102419084A true CN102419084A (en) | 2012-04-18 |
Family
ID=45943615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103640580A Pending CN102419084A (en) | 2011-11-16 | 2011-11-16 | Kiln body of cement shaft kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102419084A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105526805A (en) * | 2016-01-07 | 2016-04-27 | 无锡远能耐火材料有限公司 | Wear-resisting composite brick with low heat conductivity |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02302582A (en) * | 1989-05-16 | 1990-12-14 | Ngk Insulators Ltd | Refractory material for rotary kiln |
| CN2471777Y (en) * | 2001-03-14 | 2002-01-16 | 徐茂成 | Micro-floatation dust filtering kiln for calcining |
| CN201373660Y (en) * | 2009-03-26 | 2009-12-30 | 翟旭东 | Semidry-method large-diameter multi-tower grate shaft-type cement clinker sintering kiln |
| CN202329069U (en) * | 2011-11-16 | 2012-07-11 | 范圣良 | Cement shaft kiln body |
-
2011
- 2011-11-16 CN CN2011103640580A patent/CN102419084A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02302582A (en) * | 1989-05-16 | 1990-12-14 | Ngk Insulators Ltd | Refractory material for rotary kiln |
| CN2471777Y (en) * | 2001-03-14 | 2002-01-16 | 徐茂成 | Micro-floatation dust filtering kiln for calcining |
| CN201373660Y (en) * | 2009-03-26 | 2009-12-30 | 翟旭东 | Semidry-method large-diameter multi-tower grate shaft-type cement clinker sintering kiln |
| CN202329069U (en) * | 2011-11-16 | 2012-07-11 | 范圣良 | Cement shaft kiln body |
Non-Patent Citations (1)
| Title |
|---|
| 叶明: "《水泥机立窑内衬用轻质隔热保温砖机理分析》", 《云南建材》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105526805A (en) * | 2016-01-07 | 2016-04-27 | 无锡远能耐火材料有限公司 | Wear-resisting composite brick with low heat conductivity |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120418 |