JP3787689B2 - Metal anchor for irregular refractories - Google Patents

Metal anchor for irregular refractories Download PDF

Info

Publication number
JP3787689B2
JP3787689B2 JP32614196A JP32614196A JP3787689B2 JP 3787689 B2 JP3787689 B2 JP 3787689B2 JP 32614196 A JP32614196 A JP 32614196A JP 32614196 A JP32614196 A JP 32614196A JP 3787689 B2 JP3787689 B2 JP 3787689B2
Authority
JP
Japan
Prior art keywords
anchor
shaped
metal anchor
legs
metal
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.)
Expired - Lifetime
Application number
JP32614196A
Other languages
Japanese (ja)
Other versions
JPH10153390A (en
Inventor
裕幸 山南
浩明 橋本
勲 劒持
Original Assignee
株式会社ヨータイ
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 株式会社ヨータイ filed Critical 株式会社ヨータイ
Priority to JP32614196A priority Critical patent/JP3787689B2/en
Publication of JPH10153390A publication Critical patent/JPH10153390A/en
Application granted granted Critical
Publication of JP3787689B2 publication Critical patent/JP3787689B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Landscapes

  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Description

【0001】
【産業上の利用分野】
本発明は、窯炉炉壁等に施工する不定形耐火物を保持するために用いられるメタルアンカーに関するものである。
【0002】
【従来の技術】
メタルアンカーの設計はアンカーの材質,形状(V形,Y形,Z形およびこれらの変形),長さ,太さ,アンカー密度など使用温度および不定形耐火物を保持するための強度を基準とし、これらに安全係数を考慮して決定されている。ロータリーキルン等,缶体自身が回転等の動作をする場合においては、この安全係数を大きくとるなどの配慮がなされているのが通例である。
【0003】
【発明が解決しようとする課題】
こういった窯炉の炉壁等に使用される不定形耐火物の耐用を延長させる場合、耐火物自身に要求される特性としては、耐熱性のほか、繰り返し応力に耐え得るだけの充分な強度といったものが上げられる。しかしながら、不定形耐火物の強度の増加はアンカーの缶体との接合部への応力集中を助長し、過大な機械的応力によって、アンカーが接合部より切断され、不定形耐火物が脱落することがあった。
【0004】
【課題を解決するための手段及び作用】
セメントロータリーキルンの口元に使用され、缶体との接合部が切断された直径 6〜16mm,Y形およびダブルY形(2段Y形)のメタルアンカーの損傷状況を調査したところ、繰り返し応力による金属疲労が主要因であることが判明した。
【0005】
この結果をもとにアンカーシステムの強化について検討し、メタルアンカーの形状をX形または逆Y形とし、脚部を複数とすることで、首振り現象によるアンカーの缶体接合部分への応力集中を解消し、アンカーの疲労破断を防止できることを見いだした。
【0006】
なお、従来のアンカーが首振りによる破断を生ずるということは、施工されている不定形耐火物も動いていることを示し、不定形耐火物自身もこの動きによる相互応力により損傷を受ける。本願発明のアンカーを用いた場合アンカーの首振りを減少することにより、施工された不定形耐火物にかかる応力を減少させることになり損傷を軽減する効果を有す。
【0007】
アンカーの寸法は直径 6〜20mm の丸棒が好ましく、缶体との固定方法は従来より用いられている溶接あるいはボルト止めで良い。
【0008】
アンカーの形状については、Z形アンカーの角度を鈍角とし2個組み合わせて溶接しX形とするか脚部のみ溶接して逆Y形とするのが良い。またこれらの中間的な形状であるX形の頭部の一方を長く、他方が短い形状でも良い。さらに従来のアンカーに脚部を追加溶接しても良い。
【0009】
アンカーの角度、アンカーの頭部と脚部の長さの比率については、施工状況などによって変える必要があるため、特に限定されるものではないが、アンカーの頭部角度は缶体面の垂直線に対し45度またはそれ以下、複数脚部の開き角度は
60〜30°、アンカーの頭部の長さと脚部の長さの比率は1/2〜2/1にするのが望ましい。
【0010】
本願発明のアンカーを使用する場合において、従来より使用されているV形・Y形・Z形およびこれらの変形形状アンカーとの併用も可能であり、また本願発明による形状や長さの異なるアンカーを組み合わせて使用することも可能である。次にアンカー取り付け時の脚部の開き方向は回転方向に脚部を広げた状態を基本とする。しかし、実炉における応力方向は必ずしも一定でないため脚部の開き方向にオフセット角を付けてもよいし、さらに脚部の開き方向を変えた組み合わせの使用も可能である。
【0011】
【実施例】
【図1】に本願発明にて作成されたX形アンカーの例を示す。
【0012】
【図1】は【図2】【図3】に示すZ形アンカーを組み合わせたものであり、アンカーどうしの接点は溶接により固定されている。
これらのアンカーを【図4】に示すようにセメントロータリーキルンの口元部に使用し、耐熱温度1700℃の低セメントキャスタブルを 300mm 厚さに施工して使用したところ、従来の6ケ月耐用に対し、2倍の1年の耐用が得られた。
【発明の効果】
本願発明のメタルアンカーをセメントロータリーキルンの口元部に使用することにより、施工したキャスタブル耐火物の耐用の延長を図ることができた。
【0013】
【図面の簡単な説明】
【図1】X形アンカーの横断面図である。
【図2】Z形アンカー(1)の横断面図である。
【図3】Z形アンカー(2)の横断面図である。
【図4】セメントロータリーキルンの口元部にX形アンカーを配列した例の平面図である。
【図5】セメントロータリーキルン口元部にX形アンカーを使用した例の横断面図である。
【符号の説明】
1 Z形アンカー
2 Z形アンカー
3 X形アンカー
4 V形アンカー
5 キャスタブル
6 れんが止め
7 シェル
8 口元T金物
9 回転窯用れんが
[0001]
[Industrial application fields]
The present invention relates to a metal anchor used for holding an irregular refractory to be constructed on a furnace furnace wall or the like.
[0002]
[Prior art]
Metal anchor design is based on anchor material, shape (V-type, Y-type, Z-type and their deformations), length, thickness, anchor density, etc. These are determined in consideration of the safety factor. When the can body itself rotates, such as a rotary kiln, it is usual that considerations such as increasing this safety factor are made.
[0003]
[Problems to be solved by the invention]
When extending the durability of the irregular refractories used for the furnace walls of these kilns, the required properties of the refractories themselves are not only heat resistance but also sufficient strength to withstand repeated stresses. Can be raised. However, the increase in the strength of the irregular refractory promotes stress concentration at the joint of the anchor with the can body, and the anchor is cut from the joint due to excessive mechanical stress, and the irregular refractory falls off. was there.
[0004]
[Means and Actions for Solving the Problems]
We investigated the damage situation of metal anchors of 6 to 16 mm in diameter, Y-shaped and double Y-shaped (two-stage Y-shaped), which were used at the mouth of cement rotary kilns and cut at the joints with cans. Fatigue was found to be the main factor.
[0005]
Based on this result, we examined the strengthening of the anchor system, and made the metal anchor shape X-shaped or inverted Y-shaped, and made multiple legs to concentrate stress on the joint of the anchor due to the swinging phenomenon It was found that the fatigue fracture of the anchor can be prevented.
[0006]
The fact that the conventional anchor breaks due to swinging means that the constructed refractory is moving, and the refractory itself is also damaged by the mutual stress caused by this movement. When the anchor of the present invention is used, by reducing the swinging of the anchor, the stress applied to the constructed amorphous refractory is reduced, which has the effect of reducing damage.
[0007]
The anchor is preferably a round bar having a diameter of 6 to 20 mm, and the fixing method to the can body may be welding or bolting which has been conventionally used.
[0008]
As for the shape of the anchor, it is preferable that the angle of the Z-shaped anchor is an obtuse angle and the two are combined and welded to form an X shape or only the legs are welded to form an inverted Y shape. One of the X-shaped heads, which is an intermediate shape, may be long and the other may be short. Further, the leg portion may be additionally welded to the conventional anchor.
[0009]
The angle of the anchor and the ratio of the length of the anchor's head and leg need to be changed depending on the construction situation, etc. On the other hand, it is desirable that the opening angle of the plurality of legs is 60 to 30 °, and the ratio between the length of the anchor head and the length of the leg is 1/2 to 2/1.
[0010]
When using the anchor of the present invention, it can be used in combination with the V-shaped, Y-shaped, Z-shaped anchors used in the past, and these deformed shape anchors. It is also possible to use in combination. Next, the opening direction of the leg when the anchor is attached is basically based on a state where the leg is widened in the rotation direction. However, since the stress direction in the actual furnace is not necessarily constant, an offset angle may be added to the opening direction of the leg, and a combination in which the opening direction of the leg is changed is also possible.
[0011]
【Example】
FIG. 1 shows an example of an X-shaped anchor created in the present invention.
[0012]
FIG. 1 is a combination of Z-shaped anchors shown in FIG. 2 and FIG. 3, and the contact points of the anchors are fixed by welding.
When these anchors are used at the mouth of a cement rotary kiln as shown in Fig. 4 and a low-cement castable with a heat-resistant temperature of 1700 ° C is applied to a thickness of 300 mm, the conventional 6-month service life is 2%. Double life of 1 year was obtained.
【The invention's effect】
By using the metal anchor of the present invention at the mouth of the cement rotary kiln, it was possible to extend the durability of the castable refractory that was constructed.
[0013]
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of an X-shaped anchor.
FIG. 2 is a cross-sectional view of a Z-shaped anchor (1).
FIG. 3 is a transverse sectional view of a Z-shaped anchor (2).
FIG. 4 is a plan view of an example in which X-shaped anchors are arranged at the mouth of the cement rotary kiln.
FIG. 5 is a cross-sectional view of an example in which an X-shaped anchor is used at a cement rotary kiln mouth.
[Explanation of symbols]
1 Z-shaped anchor
2 Z-shaped anchor
3 X-shaped anchor
4 V-shaped anchor
5 Castable
6 Brick stop
7 shell
8 Mouth T hardware
9 Brick for rotary kiln

Claims (2)

不定形耐火物を保持するために使用されるメタルアンカーにおいて、その形状がX形または逆Y形で、接合部が複数脚を有し、アンカー頭部角度が缶体面の垂直線に対して45度またはそれ以下、複数脚部の開き角度は、60〜30°、アンカー頭部の長さと脚部の長さの比率は1/2〜2/1であるメタルアンカー。In a metal anchor used to hold an irregular refractory, the shape is X-shaped or inverted Y-shaped, the joint has a plurality of legs, and the anchor head angle is 45 with respect to the vertical line of the can body surface. A metal anchor in which the opening angle of the plurality of legs is 60 to 30 °, and the ratio of the length of the anchor head to the length of the legs is 1/2 to 2/1. 請求項1のメタルアンカーを使用した不定形耐火物の施工体。The construction body of the irregular refractory using the metal anchor of Claim 1.
JP32614196A 1996-11-21 1996-11-21 Metal anchor for irregular refractories Expired - Lifetime JP3787689B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP32614196A JP3787689B2 (en) 1996-11-21 1996-11-21 Metal anchor for irregular refractories

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP32614196A JP3787689B2 (en) 1996-11-21 1996-11-21 Metal anchor for irregular refractories

Publications (2)

Publication Number Publication Date
JPH10153390A JPH10153390A (en) 1998-06-09
JP3787689B2 true JP3787689B2 (en) 2006-06-21

Family

ID=18184518

Family Applications (1)

Application Number Title Priority Date Filing Date
JP32614196A Expired - Lifetime JP3787689B2 (en) 1996-11-21 1996-11-21 Metal anchor for irregular refractories

Country Status (1)

Country Link
JP (1) JP3787689B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102645099A (en) * 2012-05-11 2012-08-22 安徽海螺建材设计研究院 Rivet connection structure of cement thermal equipment
CN103808147B (en) * 2014-01-22 2015-09-30 洛阳市洛华粉体工程特种耐火材料有限公司 A kind of cylindrical shape turns round the anchoring process of hot equipment kiln lining
JP7196379B2 (en) * 2018-05-10 2022-12-27 東京窯業株式会社 lance pipe

Also Published As

Publication number Publication date
JPH10153390A (en) 1998-06-09

Similar Documents

Publication Publication Date Title
AU2007218923B2 (en) A rotary kiln
JP5488785B2 (en) Refractory construction method and construction furnace
US2304170A (en) Furnace roof
JP3787689B2 (en) Metal anchor for irregular refractories
US4275771A (en) Interlocking truncated triangular insulator
US4475886A (en) Lifter for rotary kiln
ES2220618T3 (en) ASSEMBLY ASSEMBLY SUBJECTED TO HEAT AND WEAR, ESPECIALLY SEGMENT OF A CYCLONE IMMERSION TUBE.
TW414852B (en) Fabricated steel lifter for rotary kiln
US4290457A (en) Truncated triangular insulator
JPH03502782A (en) Ceramic brick retaining band for steel ladle
RU2160654C1 (en) Refractory stone and lining for heat aggregates
JPS6317992Y2 (en)
CN213515060U (en) Refractory structure of roasting kiln
JP2005042967A (en) Heat insulating structure having ceramic fiber and constructing method thereof
JP3755491B2 (en) Refractory lining structure for chaotic cars
JP4441056B2 (en) Refractory block, manufacturing method thereof and molten metal container
CN110285428B (en) Method for improving reliable furnace life of incinerator and incinerator applying method
JP2586771Y2 (en) Manhole fireproof block
RU2160655C1 (en) Refractory stone and multifunctional lining for heat aggregates
JP3795345B2 (en) Cooling pipe protection structure in refuse incinerator
JPS5822473Y2 (en) Gas transport pipe containing particulates
JPH0530137U (en) Coke oven furnace fastening device
CA2323619A1 (en) Wall structure for a metallurgical vessel and blast furnace provided with a wall structure of this nature
JPS6230720Y2 (en)
JPH0516202Y2 (en)

Legal Events

Date Code Title Description
A711 Notification of change in applicant

Free format text: JAPANESE INTERMEDIATE CODE: A711

Effective date: 20040116

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20041124

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20041221

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20050218

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20050906

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20050928

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20060221

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20060314

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

S202 Request for registration of non-exclusive licence

Free format text: JAPANESE INTERMEDIATE CODE: R315201

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20090407

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100407

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110407

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120407

Year of fee payment: 6

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130407

Year of fee payment: 7

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140407

Year of fee payment: 8

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

EXPY Cancellation because of completion of term