JPS621679Y2 - - Google Patents

Info

Publication number
JPS621679Y2
JPS621679Y2 JP1981196727U JP19672781U JPS621679Y2 JP S621679 Y2 JPS621679 Y2 JP S621679Y2 JP 1981196727 U JP1981196727 U JP 1981196727U JP 19672781 U JP19672781 U JP 19672781U JP S621679 Y2 JPS621679 Y2 JP S621679Y2
Authority
JP
Japan
Prior art keywords
powder
thermal spraying
hopper
screw feeder
thermal
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
Application number
JP1981196727U
Other languages
Japanese (ja)
Other versions
JPS5898596U (en
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 filed Critical
Priority to JP19672781U priority Critical patent/JPS5898596U/en
Publication of JPS5898596U publication Critical patent/JPS5898596U/en
Application granted granted Critical
Publication of JPS621679Y2 publication Critical patent/JPS621679Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Nozzles (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Description

【考案の詳細な説明】[Detailed explanation of the idea]

本考案は炉内壁を火炎溶射法により補修する際
に使用する溶射用粉体材料の供給装置に関し、詳
しくは複数種の粉体材料をその組合せおよび混合
割合を連続的に変化させながら混合し供給し得る
溶射用粉体供給装置に関する。 粉体材料を火炎中に噴出し溶融させつつ炉内壁
にこれを吹付けて溶着させる火炎溶射法による炉
の補修方法はその溶着率、溶着層の性質が優れて
いるため近年盛んに行われる様になりつつある。
この火炎溶射法における粉体材料の供給方法は従
来予め主材料とフラツクス材料を一定の割合に混
合したものを一個のホツパーから送り出してお
り、従つて溶射中に粉体材料の成分を変更したり
あるいはその混合割合を変化させることは行われ
ていない。然して炉壁の溶射補修に際しては補修
する場所、時期等により例えば主材料とフラツク
ス材料の混合割合を適宜変更して最適混合比とし
たり、フラツクス材料を変更しこれによつてその
場所、その時期に最も適した溶射膜を得ることが
望ましい。また溶射中に連続的に混合割合を変化
させることが、得られる溶射膜の性質上からも、
作業性からも望ましい場合が多い。 本考案はこれらの要求を満たすべく複数種の溶
射用粉体材料を任意の混合割合に連続的に調節し
つつ混合し供給することを可能にした溶射用粉体
材料供給装置に関するものであり、2個以上の
夫々独立した溶射粉体用ホツパーと、該各々のホ
ツパーからの溶射粉体を任意の割合で供給し得、
その供給量の調節をスクリユーの回転数により行
なうスクリユーフイーダーと、該各スクリユーフ
イーダーに連設されたエジエクターよりなること
を特徴とする溶射用粉体供給装置である。 以下本考案を図により詳細説明する。図は本考
案の一実施例を示すもので、第1ホツパー1の下
部には第1スクリユーフイーダー2が、第2ホツ
パー3の下部には第2スクリユーフイーダー4が
夫々配置され、両フイーダー2,4の終端は夫々
管5に接続されている。第1,第2スクリユーフ
イーダー2,4は可変モーターによりあるいは変
速装置を介してモーターにより夫々任意に連続的
に回転数を変えることが出来る様に構成されてい
る。管5はボールバルブ6を介してエジエクター
7に連通している。エジエクター7には搬送ガス
用導管8のノズル9が配置され、エジエクター7
は溶射バーナーに通じる導管10に連通してい
る。 したがつて第1ホツパー1内の主材料である溶
射用粉体11は第1スクリユーフイーダー2によ
りその回転数に応じた量が、又第2ホツパー3内
のフラツクス材料である溶射用粉体12は第2ス
クリユーフイーダー4によりその回転数に応じた
量が夫々連続的に管5に供給され、さらにボール
バルブ6を介してエジエツクター7に送られる。 両スクリユーフイーダー2,4の回転数に比例
する所定の供給量で供給された粉体材料11およ
び12はエジツクター7において導管8により導
入されノズル9より噴出するプロパン等の可燃性
ガスあるいは酸素等の支燃性ガスによつて吸引さ
れ混合され、次いでこの混合供給粉体は導管10
より溶射バーナーへ搬送される。 図の実施例ではホツパーが2個であるが、3個
以上であつても良いことは勿論である。またフイ
ーダーとしてスクリユーフイーダーの代りにロー
タリーフイーダー、テーブルフイーダー、ベルト
コンベアー等を用いても良い。 次に本考案装置を用いて実際炉の補修を行つた
例について述べる。第1表は火炎溶射法を用いて
コークス炉を補修する際に本考案による粉体供給
装置を使用した場合の各ホツパーに充填した粉体
材料およびその粉体材料を溶射した時の主混合割
合を示したものである。
The present invention relates to a supply device for thermal spraying powder materials used when repairing furnace inner walls by flame spraying, and more specifically, it mixes and supplies multiple types of powder materials while continuously changing their combinations and mixing ratios. The present invention relates to a powder supply device for thermal spraying that can be used for thermal spraying. The method of repairing furnaces using the flame spraying method, in which powder material is jetted into a flame and melted while being sprayed onto the inner wall of the furnace and welded, has become popular in recent years due to its excellent welding rate and properties of the welded layer. It is becoming.
Conventionally, the method of supplying powder material in this flame spraying method is to mix the main material and flux material in a fixed ratio in advance and send it out from a single hopper. Or, the mixing ratio is not changed. However, when repairing a furnace wall by thermal spraying, depending on the location and time of the repair, for example, the mixing ratio of the main material and the flux material may be changed appropriately to achieve the optimum mixing ratio, or the flux material may be changed to achieve a It is desirable to obtain the most suitable thermal spray coating. In addition, it is important to continuously change the mixing ratio during thermal spraying due to the nature of the resulting thermal sprayed film.
It is often desirable from the viewpoint of workability. The present invention relates to a thermal spraying powder material supply device that is capable of continuously adjusting and supplying multiple types of thermal spraying powder materials to an arbitrary mixing ratio in order to meet these requirements. two or more independent thermal spray powder hoppers, and the thermal spray powder from each of the hoppers can be supplied at any ratio;
This powder supply device for thermal spraying is characterized by comprising a screw feeder whose supply amount is adjusted by the number of revolutions of the screw, and an ejector connected to each screw feeder. The present invention will be explained in detail below with reference to the drawings. The figure shows an embodiment of the present invention, in which a first screw feeder 2 is placed under a first hopper 1, a second screw feeder 4 is placed under a second hopper 3, and The ends of both feeders 2 and 4 are connected to pipes 5, respectively. The first and second screw feeders 2 and 4 are constructed so that their rotational speeds can be arbitrarily and continuously changed by a variable motor or by a motor via a transmission device. The pipe 5 communicates with an ejector 7 via a ball valve 6. A nozzle 9 of a carrier gas conduit 8 is arranged in the ejector 7.
communicates with a conduit 10 leading to a thermal spray burner. Therefore, the thermal spraying powder 11, which is the main material in the first hopper 1, is fed to the first screw feeder 2 in an amount corresponding to its rotation speed, and the thermal spraying powder, which is the flux material, in the second hopper 3 is The bodies 12 are continuously supplied to the tubes 5 by the second screw feeder 4 in an amount corresponding to the number of revolutions thereof, and are further sent to the ejector 7 via the ball valve 6. Powder materials 11 and 12 supplied at a predetermined supply amount proportional to the rotational speed of both screw feeders 2 and 4 are introduced into an ejector 7 through a conduit 8, and combustible gas such as propane or oxygen is ejected from a nozzle 9. This mixed feed powder is then passed through conduit 10.
It is then transported to the thermal spray burner. In the illustrated embodiment, there are two hoppers, but it goes without saying that there may be three or more hoppers. Further, instead of the screw feeder, a rotary leaf feeder, table feeder, belt conveyor, etc. may be used as the feeder. Next, we will discuss an example in which an actual furnace was repaired using the device of the present invention. Table 1 shows the powder material filled in each hopper and the main mixing ratio when spraying the powder material when the powder supply device according to the present invention is used when repairing a coke oven using the flame spray method. This is what is shown.

【表】 A部の場合はホツパー()よりのカリ長石と
ホツパー()よりのムライトを主として6:4
の割合に混合して溶射を行つた。これは融点の低
いカリ長石と融点の高いムライトを混合して最適
融点の混合粉体材料とすると共に、カリ長石のみ
では不足の耐火度、熱間強度、流動性等を補つた
ものである。 更にA′の配合にすることにより耐火度、熱間
強度を上げることが出来、B部の場合はホツパー
()よりのカリ長石とホツパー()よりのシ
ヤモツトを主として5:5の割合で混合して溶射
を行つた。これも上記実施例と同様、融点の低い
カリ長石と融点の高いシヤモツトを混合して最適
の融点を得ると共にカリ長石のみでは不足の耐火
度、熱間強度、流動性を持たせたものであるが、
更にムライトの場合に比してアルミナの混入比を
少くして熱間強度、流動性を維持しつつ融点を低
くしたものである。 本考案は上記の様に実施されるがこの効果は次
の通りである。第1に例えば主材料とフラツクス
材料等複数種の溶射粉体材料をその成分及び混合
割合を変えて供給したい場合、その度毎に供給装
置を停止して粉体材料を交換する必要がない。第
2に予め上記複数種の粉体材料を混合しておく必
要がなくその分工程を省略し得る。勿論予め混合
しておいた粉体材料を供給しても良い。第3に溶
射中の上記混合割合を調節し得るので例えばフラ
ツクスの混入割合が連続的に変化した溶射皮膜を
作ることが出来る等である。
[Table] In the case of A part, the ratio of potassium feldspar from Hopper () and mullite from Hopper () is mainly 6:4.
Thermal spraying was carried out by mixing them in the following proportions. This is a mixture of potassium feldspar, which has a low melting point, and mullite, which has a high melting point, to create a mixed powder material with an optimal melting point, and it also compensates for the refractoriness, hot strength, fluidity, etc. that are insufficient with potassium feldspar alone. Furthermore, the fire resistance and hot strength can be increased by mixing A', and in the case of B, potassium feldspar from Hopper () and syamoto from Hopper () are mainly mixed in a ratio of 5:5. Thermal spraying was carried out. Similar to the above example, this is a mixture of potassium feldspar with a low melting point and syamoto with a high melting point to obtain an optimal melting point and to provide refractory properties, hot strength, and fluidity that are insufficient with potassium feldspar alone. but,
Furthermore, compared to mullite, the mixing ratio of alumina is lowered to lower the melting point while maintaining hot strength and fluidity. The present invention is implemented as described above, and the effects are as follows. First, when it is desired to supply multiple types of thermal spray powder materials, such as a main material and a flux material, with different components and mixing ratios, there is no need to stop the supply device and replace the powder materials each time. Second, there is no need to mix the plurality of types of powder materials in advance, and steps can be omitted accordingly. Of course, powder materials that have been mixed in advance may be supplied. Thirdly, since the mixing ratio during thermal spraying can be adjusted, for example, it is possible to create a thermal sprayed coating in which the mixing ratio of flux changes continuously.

【図面の簡単な説明】[Brief explanation of the drawing]

図は本考案装置の一実施例を示す断面図であ
る。 1は第1ホツパー、2は第1スクリユーフイー
ダー、3は第2ホツパー、4は第2スクリユーフ
イーダー、5は管、6はボールバルブ、7はエジ
エツクター、8は搬送ガス用導管、9はノズル、
10は導管、11,12は溶射用粉体である。
The figure is a sectional view showing an embodiment of the device of the present invention. 1 is a first hopper, 2 is a first screw feeder, 3 is a second hopper, 4 is a second screw feeder, 5 is a pipe, 6 is a ball valve, 7 is an ejector, 8 is a carrier gas conduit, 9 is a nozzle,
10 is a conduit, and 11 and 12 are powders for thermal spraying.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 2個以上の夫々独立した溶射粉体用ホツパー
と、該各々のホツパーからの溶射粉体を任意の割
合で供給し得、その供給量の調節をスクリユーの
回転数により行なうスクリユーフイーダーと、該
各スクリユーフイーダーに連設されたエジエクタ
ーよりなることを特徴とする溶射用粉体供給装
置。
two or more independent hoppers for thermal spraying powder; a screw feeder capable of supplying thermal spraying powder from each of the hoppers at an arbitrary ratio, and adjusting the supply amount by adjusting the rotational speed of the screw; A powder supply device for thermal spraying, comprising an ejector connected to each screw feeder.
JP19672781U 1981-12-25 1981-12-25 Powder supply device for thermal spraying Granted JPS5898596U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19672781U JPS5898596U (en) 1981-12-25 1981-12-25 Powder supply device for thermal spraying

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19672781U JPS5898596U (en) 1981-12-25 1981-12-25 Powder supply device for thermal spraying

Publications (2)

Publication Number Publication Date
JPS5898596U JPS5898596U (en) 1983-07-05
JPS621679Y2 true JPS621679Y2 (en) 1987-01-14

Family

ID=30109961

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19672781U Granted JPS5898596U (en) 1981-12-25 1981-12-25 Powder supply device for thermal spraying

Country Status (1)

Country Link
JP (1) JPS5898596U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012078020A (en) * 2010-10-01 2012-04-19 Osaka Gas Co Ltd Heating device for granular material

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2180047B (en) * 1985-09-07 1989-08-16 Glaverbel Forming refractory masses
KR100641027B1 (en) 2005-10-13 2006-11-01 김재수 The multipurpose conveyor system laying air spray hopper

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5555813U (en) * 1978-10-07 1980-04-15

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5555813U (en) * 1978-10-07 1980-04-15

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012078020A (en) * 2010-10-01 2012-04-19 Osaka Gas Co Ltd Heating device for granular material

Also Published As

Publication number Publication date
JPS5898596U (en) 1983-07-05

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