CN106595315B - A kind of rotary cement kiln eye castable construction method - Google Patents

A kind of rotary cement kiln eye castable construction method Download PDF

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Publication number
CN106595315B
CN106595315B CN201611134385.6A CN201611134385A CN106595315B CN 106595315 B CN106595315 B CN 106595315B CN 201611134385 A CN201611134385 A CN 201611134385A CN 106595315 B CN106595315 B CN 106595315B
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China
Prior art keywords
castable
shuttering
construction
kilneye
anchoring piece
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CN201611134385.6A
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Chinese (zh)
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CN106595315A (en
Inventor
苏玉柱
张海波
张康康
郝瑞
王峰裕
丛江波
高长贺
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Beijing Jinyu Group Co.,Ltd.
Beijing Jinyu Tongda refractory Technology Co.,Ltd.
Original Assignee
Beijing Jinyu Limited-Liability Co
BEIJING TONGDA GREEN AND HIGH TEMPERATURE NEW MATERIAL ENGINEERING RESEARCH CENTER Co Ltd
TONGDA REFRACTORY TECHNOLOGIES Co Ltd
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Priority to CN201611134385.6A priority Critical patent/CN106595315B/en
Publication of CN106595315A publication Critical patent/CN106595315A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00Casings; Linings; Walls; Roofs
    • F27D1/16Making or repairing linings increasing the durability of linings or breaking away linings
    • F27D1/1626Making linings by compacting a refractory mass in the space defined by a backing mould or pattern and the furnace wall

Abstract

A kind of rotary cement kiln eye castable construction method, belongs to technical field of refractory materials.Anchoring piece, then installation Side shuttering are first welded, castable is provided;Subsequent castable six o'clock direction pour a mould, stayed in castable and set gas vent;Finally baking and removes Side shuttering at brickkiln;It repeats castable and is poured into dismounting each step of Side shuttering until the construction of the kilneye domain finishes.The advantage is that the low amount of water of kilneye castable can be reduced, the compactness and erosion-resisting characteristics of castable are improved;Reduce the risk of the damage of castable.

Description

A kind of rotary cement kiln eye castable construction method
Technical field
The invention belongs to technical field of refractory materials, more particularly to a kind of rotary cement kiln eye castable construction method. More particularly to it is a kind of only installing side mould, do not use cover board to construct vertically downward in Y direction the construction method of kilneye castable.
Background technology
Rotary cement kiln eye castable is more easily damaged with respect to the other positions of cement kiln, service life strong influence water Stall running rate.Kilneye castable working environment is very harsh, and castable is not only by the abrasion in high temperature chamotte blanking process It acts on, the mechanical stress effect during barrel body rotation is also subjected to the heat of the effect of alkali vapours attack and temperature change generation Shake impact.The staying of the construction quality of kilneye castable and dilatation joint sets most important to the service life of kilneye castable.Cement Rotary kiln kilneye castable conventional construction method amount of water is on the high side, and kilneye casting material strength is caused to decline, and apparent pore increase causes Erosion-resisting characteristics declines;Conventional construction method can not stay the dilatation joint set through rotary kiln central shaft simultaneously, it is difficult to from structure side Face discharges thermal stress and mechanical stress, and the damage of kilneye castable is caused to cause to stop kiln.
The rotary cement kiln eye service life constructed using conventional construction method is unstable, and risk is brought to operation.
Invention content
The purpose of the present invention is to provide a kind of rotary cement kiln eye castable construction methods, solve kilneye castable Because dilatation joint stays the problem of setting unreasonable crack in use and causing castable internal damage.Pass through reserved row Stomata solves the problems, such as that castable bursts during rotary kiln firing up.
A kind of rotary cement kiln eye castable construction method, specific steps and parameter are as follows:
1, anchoring piece welds:After removing cement rotary kiln barrel surface oxide layer, it is by material0Cr25Ni20Heat resisting steel anchor Firmware is arranged according to anchor design and welds anchoring piece;Anchoring piece need to ensure that any position of anchoring piece can not cross when welding Kilneye cap iron gap and its extended line, anchoring piece spacing 80-150mm, welding will use A302 welding rods, be welded with full weld mode.
2, construction Side shuttering installation:
1) Side shuttering is made according to kilneye length, construction thickness and kilneye shelves brick circle size, template number is 2-4 blocks;
2) steel plate of template 3-5mm thickness or the plank of 20-25mm thickness, it is ensured that template is indeformable;
3) dilatation joint with Side shuttering same shape is made;
4) dilatation joint 5-6mm thickness alumina silicate fiber felt or the three-ply board of 3-4mm thickness;
5) dilatation joint is affixed on the inside of Side shuttering;
6) Side shuttering is inserted and fixed along kilneye cap iron both sides gap respectively.
3, castable is provided:The castable is Special castable for kiln outlet;
4, castable six o'clock direction pour a mould
1) castable is put into mixed five minutes in forced mixer after be added water continue to stir;
2) castable mixed is transported into the mold installed;
3) it is vibrated using diameter 50mm vibrating heads, is vibrated using the fast mode of pulling out slowly of inserting;
4) castable, which is vibrated, finishes rear surface floating;
5, it is stayed in castable and sets gas vent, castable construction is hung down on castable surface according to setting spacing after finishing 15 minutes Straight cutting enters diameter 6-10mm reinforcing bars, and depth is castable thickness, then extracts again, stays and set gas vent;
6, it toasts, castable is toasted with iodine-tungsten lamp or heating tube, heat source is apart from castable surface 200- 300mm accelerates castable hardening and excludes internal Free water;
7, rotary kiln, rotary kiln, which is rotated to the adjacent kilneye cap iron that do not construct, is in six o'clock direction;
8, mold is installed:
1) remove constructed has completed divide barrier effect Side shuttering only leave dilatation joint;
2) six-o ' clock position kilneye cap iron other side seating side template and dilatation joint is sticked on the inside of template;
9,4-8 steps are repeated, until the construction of the kilneye domain finishes.
The advantage of the invention is that:Construction surface is kilneye castable working face, has larger construction space, can reduce The low amount of water of kilneye castable improves the compactness and erosion-resisting characteristics of castable simultaneously because vibrating fully;Kilneye castable Block construction can be stayed rationally and set dilatation joint, can be used as leading to for mechanical stress and the thermal stress release in rotary kiln operation process Road reduces the risk of the damage of castable;Construction surface is conveniently stayed for kilneye castable working face and sets gas vent, as in castable Portion's Free water and constitution water passing away, avoid castable from bursting in firing up.
Description of the drawings
Fig. 1 is anchoring piece arrangement schematic diagram.
Fig. 2 is Side shuttering schematic diagram.
Fig. 3 is dilatation joint and Side shuttering scheme of installation.Wherein, template 1, dilatation joint 2.
Fig. 4 is the schematic diagram that vibrates.Wherein, castable 3, vibrating head 4.
Fig. 5 is gas vent schematic diagram.Wherein, gas vent 5.
Fig. 6 is next construction segment template scheme of installation.
Specific implementation mode
With reference to embodiments and its attached drawing the invention will be further described, rotary cement kiln eye break iron quantity 54 Block includes 3 pieces of break iron per mould.
The rotary cement kiln eye castable construction method of the present invention includes the following steps:
1, anchoring piece welds
1) anchoring piece arrangement is referring to Fig. 1, and anchoring piece is not across kilneye cap iron gap and its extended line;
2) it checks cylinder of rotary kiln, and removes cement rotary kiln barrel surface oxide layer, avoid anchoring piece not prison welding solid Anchoring piece desoldering is caused to fail;
3) anchoring piece spacing 150mm;
4) anchoring piece head is wrapped with the plastic colloidal cloth that thickness is 2mm;
5) anchoring piece welding will use A302 welding rods, be welded using full weld mode.
2, construction Side shuttering installation
Construction Side shuttering installation includes the following steps:
1) Side shuttering structure chart is shown in Fig. 2, three pieces of template number;
2) steel plate of 3mm thickness is used to make Side shuttering;
3) expansion joint structure with formwork structure with reference to figure 2,18 pieces of dilatation joint;
4) select 5mm thickness alumina silicate fiber felts as dilatation joint;
5) dilatation joint is affixed on the inside of Side shuttering, sees Fig. 3;
6) Side shuttering is inserted perpendicularly into and fixes along 6 o'clock position kilneye cap iron both sides gap respectively, sees Fig. 3.
3, castable is provided
The castable is Special castable for kiln outlet.
4, castable 6 o'clock direction pour a mould, see Fig. 4
Castable 6 o'clock direction pour a mould and include the following steps:
1) castable is put into mix in forced mixer and quantitative water is added after five minutes continues to stir;
2) castable mixed is transported into the mold installed, is poured into mold from surface;
3) it is vibrated using diameter 50mm vibrating heads, is vibrated using the fast mode of pulling out slowly of inserting;
4) castable, which is vibrated, finishes rear surface floating.
5, stayed in castable and set gas vent, castable construction finish 15 minutes after on castable surface according to 150mm spacing It is extracted again after being inserted perpendicularly into diameter 8mm reinforcing bars to bottom, stays and set gas vent, see Fig. 5.
6, it toasts, castable is toasted using heating tube, heating tube is apart from castable surface 200mm.
7, rotary kiln, rotary kiln rotate clockwise 20 °, and the adjacent kilneye cap iron that do not construct is in 6 o'clock direction, sees Fig. 6.
8, mold is installed
Mold is installed to include the following steps:
1) remove constructed has completed divide barrier effect Side shuttering only leave dilatation joint, see Fig. 6.
2) 6 o'clock position kilneye cap iron other side seating side template and dilatation joint is sticked on the inside of template, see Fig. 6.
9, the 8th step steps of 4- are executed, until the construction of the kilneye domain finishes.

Claims (4)

1. a kind of rotary cement kiln eye castable construction method, which is characterized in that specific steps and parameter is as follows:
1) anchoring piece welds:After removing cement rotary kiln barrel surface oxide layer, it is by material0Cr25Ni20Heat resisting steel anchoring piece It is arranged according to anchor design and welds anchoring piece;Anchoring piece need to ensure that any position of anchoring piece can not cross kilneye when welding Break iron gap and its extended line, anchoring piece spacing 80-150mm;
2) construction Side shuttering installation:Side shuttering is made, template number is 2-4 blocks;It makes and Side shuttering same shape Dilatation joint;Dilatation joint is affixed on the inside of Side shuttering;Side shuttering is inserted and fixed along kilneye cap iron both sides gap respectively;
3) castable is provided;
4) castable six o'clock direction pour a mould:
1. castable is put into mixed five minutes in forced mixer after be added water continue to stir;
2. the castable mixed is transported into the mold installed;
3. being vibrated with diameter 50mm vibrating heads, vibrated with the fast mode of pulling out slowly of inserting;
4. castable, which is vibrated, finishes rear surface floating;
5) it is stayed in castable and sets gas vent:Castable construction is vertically inserted on castable surface according to setting spacing after finishing 15 minutes Enter diameter 6-10mm reinforcing bars, depth is castable thickness, then extracts again, stays and set gas vent;
6) castable is toasted with iodine-tungsten lamp or heating tube, heat source is apart from castable surface 200-300mm;
7) rotary kiln, which is rotated to the adjacent kilneye cap iron that do not construct, is in six o'clock direction;
8) mold is installed:
1. remove constructed completed segmentation barrier effect Side shuttering only leave dilatation joint;
2. six-o ' clock position kilneye cap iron other side seating side template simultaneously sticks dilatation joint on the inside of template;
9) the 4) -8 is repeated) step, until the construction of the kilneye domain finishes.
2. according to the method described in claim 1, it is characterized in that, welding A302 welding rods described in step 1), use full weld Mode is welded.
3. according to the method described in claim 1, it is characterized in that, template described in step 2) be 3-5mm thickness steel plate or The plank of 20-25mm thickness;Dilatation joint is the three-ply board of 5-6mm thickness alumina silicate fiber felt or 3-4mm thickness.
4. according to the method described in claim 1, it is characterized in that, castable described in step 3) is Special castable for kiln outlet.
CN201611134385.6A 2016-12-10 2016-12-10 A kind of rotary cement kiln eye castable construction method Active CN106595315B (en)

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107504816A (en) * 2017-09-26 2017-12-22 中材建设有限公司 The prefabricated refractory liner and its construction method of high-temperature service top structure
CN109798772A (en) * 2017-11-17 2019-05-24 南京梅山冶金发展有限公司 A kind of construction method of rotary kiln end kiln tail inner lining refractory
CN108759481A (en) * 2018-06-02 2018-11-06 安徽芜湖海螺建筑安装工程有限责任公司 Improve the design scheme of kilneye castable service life
CN109341354B (en) * 2018-09-06 2020-04-24 北京凯盛建材工程有限公司 Construction method of rotary cement kiln mouth castable
CN111336815B (en) * 2020-04-01 2021-09-28 海城市国田矿业有限公司 Integral prefabricating method for working layer of reburning kiln
CN111536800A (en) * 2020-05-14 2020-08-14 湖州长宜建设有限公司 Pouring construction method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10220965A (en) * 1997-02-06 1998-08-21 Tokyo Yogyo Co Ltd Construction method for lining refractory of rotary kiln
CN104355640A (en) * 2014-12-01 2015-02-18 张婷 Castable specially used for mouths of 5000T cement kilns
CN104677089A (en) * 2015-02-04 2015-06-03 安徽芜湖海螺建筑安装工程有限责任公司 Construction method for prolonging service cycles of kiln mouth castables in cement clinker production lines

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10220965A (en) * 1997-02-06 1998-08-21 Tokyo Yogyo Co Ltd Construction method for lining refractory of rotary kiln
CN104355640A (en) * 2014-12-01 2015-02-18 张婷 Castable specially used for mouths of 5000T cement kilns
CN104677089A (en) * 2015-02-04 2015-06-03 安徽芜湖海螺建筑安装工程有限责任公司 Construction method for prolonging service cycles of kiln mouth castables in cement clinker production lines

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Effective date of registration: 20210303

Address after: Yard 1, anningzhuang East Road, Qinghe, Haidian District, Beijing 100085

Patentee after: Beijing Jinyu Tongda refractory Technology Co.,Ltd.

Patentee after: Beijing Jinyu Group Co.,Ltd.

Address before: Yard 1, anningzhuang East Road, Qinghe, Haidian District, Beijing 100085

Patentee before: Beijing Jinyu Tongda refractory Technology Co.,Ltd.

Patentee before: Beijing Jinyu Group Co.,Ltd.

Patentee before: BEIJING TONGDA GREEN HIGH TEMPERATURE NEW MATERIAL ENGINEERING RESEARCH CENTER Co.,Ltd.

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Address after: Yard 1, anningzhuang East Road, Qinghe, Haidian District, Beijing 100085

Patentee after: Beijing Jinyu Tongda refractory Technology Co.,Ltd.

Patentee after: Beijing Jinyu Group Co.,Ltd.

Patentee after: BEIJING TONGDA GREEN HIGH TEMPERATURE NEW MATERIAL ENGINEERING RESEARCH CENTER Co.,Ltd.

Address before: 100085, Qinghe Road, Qinghe, Beijing, Haidian District, No. 1

Patentee before: TONGDA REFRACTORY TECHNOLOGIES Co.,Ltd.

Patentee before: Beijing Jinyu Co.,Ltd.

Patentee before: BEIJING TONGDA GREEN HIGH TEMPERATURE NEW MATERIAL ENGINEERING RESEARCH CENTER Co.,Ltd.

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