JPH0543852Y2 - - Google Patents
Info
- Publication number
- JPH0543852Y2 JPH0543852Y2 JP14756887U JP14756887U JPH0543852Y2 JP H0543852 Y2 JPH0543852 Y2 JP H0543852Y2 JP 14756887 U JP14756887 U JP 14756887U JP 14756887 U JP14756887 U JP 14756887U JP H0543852 Y2 JPH0543852 Y2 JP H0543852Y2
- Authority
- JP
- Japan
- Prior art keywords
- main body
- bucket
- melting tank
- tank main
- nitric acid
- 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
Links
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 34
- 229910017604 nitric acid Inorganic materials 0.000 claims description 34
- 238000002844 melting Methods 0.000 claims description 32
- 230000008018 melting Effects 0.000 claims description 32
- 238000004090 dissolution Methods 0.000 claims description 29
- 239000012634 fragment Substances 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000000446 fuel Substances 0.000 description 9
- 239000007789 gas Substances 0.000 description 9
- 238000010008 shearing Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003758 nuclear fuel Substances 0.000 description 2
- 238000012958 reprocessing Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000002915 spent fuel radioactive waste Substances 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
Description
【考案の詳細な説明】
〔考案の詳細な説明〕
（産業上の利用分野）
本考案は、原子燃料再処理プラント、化学プラ
ント、薬品や食品の製造プラント等に適用する竪
型連続溶解槽に関するものである。[Detailed explanation of the invention] [Detailed explanation of the invention] (Industrial application field) The present invention relates to a vertical continuous dissolution tank that is applied to nuclear fuel reprocessing plants, chemical plants, pharmaceutical and food manufacturing plants, etc. It is something.
（従来の技術）
従来の原子燃料再処理プラントでは、燃料の溶
解をバツチ式で行う溶解槽を使用しているが、作
業能率が悪いため、現在は、連続溶解槽が使用さ
れている。この連続溶解槽の従来例を第３図によ
り説明すると、１が回転部、２が同回転部１に放
射状に設けたバケツト、３が導入管、４が排出
管、５が洗浄槽、６が上記回転部１を回転可能に
支持するローラ、７が外部ケース、７ａが同外部
ケース７の上部カバー、８が同上部カバー７ａ上
に設置したギヤ回転駆動装置、９が上記外部ケー
ス７内の硝酸溶解液で、同ギヤ駆動装置８の回転
が回転部１に伝えられて、同回転部１が矢印方向
に回転する。このとき、使用済燃料剪断片が導入
管３を経て下半部位置に達したバケツト２内へ投
入されて、硝酸溶解液９により溶解される。また
バケツト２が回転移動して、上半部位置に達する
と、使用済燃料剪断片の残渣が重力により排出管
４へ排出されて、洗浄槽５へ自然落下するように
なつている。(Prior Art) Conventional nuclear fuel reprocessing plants use dissolving tanks that melt fuel in batches, but due to poor working efficiency, continuous dissolving tanks are currently used. A conventional example of this continuous dissolution tank is explained with reference to FIG. 3. 1 is a rotating part, 2 is a bucket provided radially on the rotating part 1, 3 is an inlet pipe, 4 is a discharge pipe, 5 is a cleaning tank, and 6 is a bucket provided radially in the rotating part 1. 7 is an outer case, 7a is an upper cover of the outer case 7, 8 is a gear rotation drive device installed on the upper cover 7a, and 9 is a roller that rotatably supports the rotating part 1; The rotation of the gear drive device 8 is transmitted to the rotating part 1 by the nitric acid solution, and the rotating part 1 rotates in the direction of the arrow. At this time, the spent fuel sheared pieces are introduced into the bucket 2 which has reached the lower half position through the introduction pipe 3, and are dissolved in the nitric acid dissolving solution 9. Further, when the bucket 2 rotates and reaches the upper half position, the residue of the spent fuel sheared pieces is discharged by gravity into the discharge pipe 4 and naturally falls into the cleaning tank 5.
（考案が解決しようとする課題）
前記第３図に示す従来の連続溶解槽では、回転
部１と、同回転部１を回転可能に支持している各
ローラ６と、同各ローラ６を外部ケース７に回転
可能に支持しているローラ支持部とが外部ケース
７内の硝酸溶解液９中及びその雰囲気下にあつ
て、これらの部品が早期に腐食、摩耗、破損する
上に、ローラ６が破損すると、その噛み込み等の
ために、回転部１の回転が困難になるので、これ
らの部品の保守、管理、交換を必要としている
が、作業員の放射線被曝を低減するために、遠隔
操作により行わなければならない。しかし部品点
数が多くて、保守、管理、交換に多くの手間と時
間を必要とするという問題があつた。(Problem to be solved by the invention) In the conventional continuous melting tank shown in FIG. The roller support part, which is rotatably supported by the case 7, is in the nitric acid solution 9 in the outer case 7 and under its atmosphere, and these parts are subject to early corrosion, abrasion, and damage. If the rotating part 1 is damaged, it becomes difficult to rotate the rotating part 1 due to the jamming, etc., so it is necessary to maintain, manage, and replace these parts.However, in order to reduce radiation exposure of workers, remote It must be done by operation. However, there was a problem in that the number of parts was large, and maintenance, management, and replacement required a lot of effort and time.
本考案は前記の問題点に鑑み提案するものであ
り、その目的とする処は、部品点数を少なくでき
て、竪型連続溶解槽の構造を簡単化できる上に、
部品の腐食、摩耗、破損等を可及的に防止でき
る。また遠隔操作による部品の保守、管理、交換
を容易に行うことができる竪型連続溶解槽を提供
しようとする点にある。 The present invention is proposed in view of the above-mentioned problems, and its purpose is to reduce the number of parts, simplify the structure of the vertical continuous melting tank, and
Corrosion, wear, damage, etc. of parts can be prevented as much as possible. Another object of the present invention is to provide a vertical continuous melting tank in which parts can be easily maintained, managed, and replaced by remote control.
（課題を解決するための手段）
上記の目的を達成するために、本発明の竪型連
続溶解槽は、上下両端部が開口した螺旋状通路を
内外筒間の環状空間部に形成した二重筒状のバケ
ツトと、同バケツトを取り囲む溶解槽本体と、同
溶解槽本体の上部に遠隔操作可能なボルトを介し
て着脱自在に取付けた溶解槽本体上部と、同溶解
槽本体上部上に設置した回転駆動装置と、同回転
駆動装置から上記溶解槽本体上部を貫通して上記
バケツトの上部中心に取付けた駆動軸と、上記溶
解槽本体の底部から上方に突出して上記バケツト
の底部中心を回転可能に支持する垂直軸と、上記
溶解槽本体上部に設けて上記螺旋状通路に対向し
た剪断片入口シユーターと、上記溶解槽本体上部
に設けて上記螺旋状通路に対向した硝酸溶解液注
入口と、上記溶解槽本体上部に設けたオフガス出
口と、溶解槽本体の底部に設けた硝酸溶解液及び
剪断片残渣の排出口と、上記溶解槽本体の側壁上
部に設けたオーバーフロー管と、同溶解槽本体の
外周面に設けた加熱装置とを具えている。(Means for Solving the Problems) In order to achieve the above object, the vertical continuous melting tank of the present invention has a double-walled continuous melting tank in which a spiral passageway with both upper and lower ends open is formed in an annular space between the inner and outer cylinders. A cylindrical bucket, a melting tank body that surrounds the bucket, an upper part of the melting tank that is removably attached to the top of the melting tank via a bolt that can be remotely controlled, and a rotational drive device, a drive shaft that passes through the upper part of the dissolution tank main body from the rotation drive device and is attached to the center of the upper part of the bucket, and a drive shaft that protrudes upward from the bottom of the dissolution tank main body and is capable of rotating the center of the bottom of the bucket a vertical shaft supported by a vertical shaft; a shear piece inlet shooter provided at the top of the dissolution tank body and facing the spiral passage; and a nitric acid solution inlet provided at the top of the dissolution tank body and opposed to the spiral passage; An off-gas outlet provided at the top of the dissolution tank main body, an outlet for the nitric acid solution and sheared fragment residue provided at the bottom of the dissolution tank main body, an overflow pipe provided at the top of the side wall of the dissolution tank main body, and an overflow pipe provided at the top of the side wall of the dissolution tank main body. and a heating device provided on the outer peripheral surface of the heating device.
（作用）
本考案の竪型連続溶解槽は前記のように構成さ
れており、回転駆動装置を駆動し、その回転を駆
動軸を介しバケツトに伝えて、同バケツトを鉛直
軸を中心に断続的に回転させ、また硝酸溶解液を
硝酸溶解液注入口→バケツトの螺旋状通路→硝酸
溶解液及び剪断片残渣の排出口へ流通させ、さら
に加熱装置によりバケツト内の硝酸溶解液を加熱
する。このとき、燃料剪断片を剪断片入口シユー
ター→バケツトの螺旋状通路へ投入し、同燃料剪
断片を慣性力と自重とにより次第に下方へ導い
て、溶解し、螺旋状通路の最下部に達した剪断片
の残渣をバケツトの底部に設けた開口部から硝酸
溶解液及び剪断片残渣の排出口へ落下させて、次
の工程、即ち、剪断片残渣と硝酸溶解液との分離
工程へ送る。また溶解槽本体内に発生する各種ガ
ス及び蒸気をオフガス出口から廃ガス処理工程へ
送る。また臨界防止対策としてオーバーフロー管
により螺旋状通路内の液面高さを一定に保持す
る。また部品の保守、管理、交換時には、遠隔操
作によりボルトを取り外して、竪型連続溶解槽を
溶解槽本体上部と溶解槽本体とに２分割した後、
遠隔操作により部品の保守、管理、交換を行う。(Function) The vertical continuous melting tank of the present invention is configured as described above, and drives the rotary drive device, transmits the rotation to the bucket via the drive shaft, and moves the bucket intermittently around the vertical axis. The nitric acid solution is rotated, and the nitric acid solution flows from the nitric acid solution inlet to the spiral passage of the bucket to the outlet for the nitric acid solution and sheared fragment residue, and the nitric acid solution in the bucket is further heated by a heating device. At this time, the fuel sheared pieces were put into the helical passage from the sheared piece inlet shooter to the bucket, and the fuel sheared pieces were gradually guided downward by inertia and their own weight, melted, and reached the bottom of the spiral passage. The sheared fragment residue is allowed to fall through the opening provided at the bottom of the bucket to the outlet for the nitric acid solution and the sheared fragment residue, and is sent to the next step, that is, the step of separating the sheared fragment residue and the nitric acid solution. In addition, various gases and steam generated within the melting tank body are sent to the waste gas treatment process from the off-gas outlet. In addition, as a measure to prevent criticality, an overflow pipe is used to maintain a constant liquid level in the spiral passage. In addition, when maintaining, managing, or replacing parts, remove the bolts by remote control and divide the vertical continuous dissolution tank into two parts: the upper part of the dissolution tank body and the dissolution tank main body.
Perform maintenance, management, and replacement of parts by remote control.
（実施例）
次に本考案の竪型連続溶解槽を第１，２図に示
す一実施例により説明すると、１１が回転駆動装
置、１２が駆動軸、１３が同駆動軸１２の周りを
シールするシール部、１４が剪断片入口シユータ
ー、１５が溶解槽本体上部で、上記剪断片入口シ
ユーター１４が同溶解槽本体上部１５に設けられ
ている。また１６が溶解槽本体、１７が同溶解槽
本体１６の側壁に設けたオーバーフロー管、１８
が内筒と外筒とを有してその間に環状空間部を形
成した二重筒状のバケツトで、同バケツト１８の
環状空間部が螺旋板により仕切られて、螺旋状通
路２７が形成され、同螺旋状通路２７の底部が下
方に向かい開口している。また１９が上記溶解槽
本体１６の底部に設けた硝酸溶解液及び剪断片残
渣の排出口、２０が上記バケツト１８の下部を回
転可能に支持する鉛直軸、２１が上記バケツト１
８の内筒内に取付けた中性子吸収材、２２が上記
バケツト１８の螺旋状通路２７内を流動する硝酸
溶解液、２３が上記溶解槽本体上部１５を上記溶
解槽本体１６に着脱自在に取付ける遠隔操作可能
なボルト、２４が上記溶解槽本体上部１５に設け
た硝酸溶解液注入口、２５が上記溶解槽本体１６
の外周面に取付けた加熱装置、２６が上記溶解槽
本体上部１５に設けたオフガス出口、２８が燃料
剪断片（被溶解物）である。(Example) Next, the vertical continuous melting tank of the present invention will be explained using an example shown in FIGS. 1 and 2. 11 is a rotary drive device, 12 is a drive shaft, and 13 is a seal around the drive shaft 14 is a shearing piece inlet shutter, and 15 is an upper part of the dissolution tank main body. Further, 16 is the dissolution tank main body, 17 is an overflow pipe provided on the side wall of the dissolution tank main body 16, and 18
is a double cylindrical bucket having an inner cylinder and an outer cylinder and forming an annular space therebetween, and the annular space of the bucket 18 is partitioned by a spiral plate to form a spiral passage 27, The bottom of the spiral passage 27 opens downward. Reference numeral 19 denotes a discharge port for the nitric acid solution and sheared fragment residue provided at the bottom of the dissolution tank main body 16; 20 denotes a vertical shaft rotatably supporting the lower part of the bucket 18; and 21 denotes the bucket 1.
8, a neutron absorber installed in the inner cylinder, 22, a nitric acid solution flowing in the spiral passage 27 of the bucket 18, and 23, a remote for attaching and detaching the upper part 15 of the melting tank main body to the melting tank main body 16. An operable bolt, 24 is a nitric acid solution inlet provided in the upper part 15 of the dissolution tank main body, and 25 is a nitric acid solution inlet provided in the dissolution tank main body 16.
26 is an off-gas outlet provided at the upper part 15 of the melting tank body, and 28 is a fuel shear piece (material to be melted).
次に前記第１，２図に示す竪型連続溶解槽の作
用を具体的に説明する。回転駆動装置１１を起動
し、その回転を駆動軸１２を介しバケツト１８に
伝えて、同バケツト１８を駆動軸１２及び鉛直軸
２０を中心に矢印方向に断続的に回転し、また硝
酸溶解液２２を硝酸溶解液注入口２４→バケツト
１８の螺旋状通路２７内→硝酸溶解液及び剪断片
残渣の排出口１９に流通させ、加熱装置２５によ
り同バケツト１８内の硝酸溶解液２２を所定温度
に加熱しているときに、30〜50mmに切断した燃料
剪断片２８を剪断片入口シユーター１４からバケ
ツト１８の螺旋状通路２７の上部へ投入する。同
螺旋状通路２７は、バケツト１８の回転方向と逆
方向に下り勾配になつており、燃料剪断片２８を
慣性力と自重とにより次第に下方へ導いて、溶解
し、螺旋状通路２７の最下部に達した燃料剪断片
２８の残渣をバケツト１８の底部に設けた開口部
から硝酸溶解液及び剪断片残渣の排出口１９へ落
下させて、次の工程、即ち、剪断片残渣と硝酸溶
解液との分離工程へ送る。また連続溶解槽本体１
６内に発生する各種ガス及び蒸気をオフガス出口
２６から廃ガス処理工程へ送る。また臨界防止対
策として、液高さに対しては溶解槽本体１６の側
壁にオーバーフロー管１７を設け、また半径方向
の液厚に対してはバケツト１８の内筒の内部に中
性子吸収材２１を取付けている。 Next, the operation of the vertical continuous melting tank shown in FIGS. 1 and 2 will be explained in detail. The rotary drive device 11 is started, and its rotation is transmitted to the bucket 18 through the drive shaft 12, so that the bucket 18 is intermittently rotated in the direction of the arrow around the drive shaft 12 and the vertical shaft 20, and the nitric acid solution 22 is rotated intermittently in the direction of the arrow. is caused to flow from the nitric acid solution inlet 24 to the spiral passage 27 of the bucket 18 to the outlet 19 for the nitric acid solution and sheared fragment residue, and the heating device 25 heats the nitric acid solution 22 in the bucket 18 to a predetermined temperature. During this time, fuel shear pieces 28 cut into 30 to 50 mm pieces are introduced into the upper part of the spiral passage 27 of the bucket 18 from the shear piece inlet shooter 14. The spiral passage 27 has a downward slope in the direction opposite to the rotating direction of the bucket 18, and the fuel sheared pieces 28 are gradually guided downward by inertia and their own weight, and are melted at the bottom of the spiral passage 27. The residue of the fuel sheared fragments 28 that has reached this level is dropped from the opening provided at the bottom of the bucket 18 to the outlet 19 for the nitric acid solution and the sheared fragment residue, and is then carried out in the next step, that is, the sheared fragment residue and the nitric acid solution are separated. sent to the separation process. Also, the continuous dissolution tank main body 1
Various gases and steam generated within the exhaust gas chamber 6 are sent to the waste gas treatment process through the off-gas outlet 26. In addition, as measures to prevent criticality, an overflow pipe 17 is installed on the side wall of the melting tank main body 16 to prevent liquid height, and a neutron absorber 21 is installed inside the inner cylinder of bucket 18 to prevent liquid thickness in the radial direction. ing.
また本実施例では、竪型連続溶解槽の全体を、
上部、即ち、回転駆動装置１１と駆動軸１２とシ
ール部１３と剪断片入口シユーター１４とオフガ
ス出口１６と硝酸溶解液注入口２４とを有する溶
解槽本体上部１５と、下部、即ち、硝酸溶解液及
び剪断片残渣の排出口１９と鉛直軸２０とオーバ
ーフロー管１７と加熱装置２５とを有する溶解槽
本体１６とに２分割し、互いを遠隔操作可能なボ
ルト２３により着脱自在に取付けて、保守、管
理、交換を容易にしている。 In addition, in this example, the entire vertical continuous dissolution tank is
The upper part, that is, the upper part 15 of the dissolution tank body, which has the rotary drive device 11, the drive shaft 12, the seal part 13, the shearing piece inlet shooter 14, the off-gas outlet 16, and the nitric acid solution inlet 24, and the lower part, that is, the nitric acid solution The melting tank main body 16 is divided into two parts, each having a discharge port 19 for sheared fragment residue, a vertical shaft 20, an overflow pipe 17, and a heating device 25, and they are detachably attached to each other by remotely controllable bolts 23 for maintenance and maintenance. Easy to manage and exchange.
（考案の効果）
本考案の竪型連続溶解槽は前記のように回転駆
動装置を駆動し、その回転を駆動軸を介しバケツ
トに伝えて、同バケツトを鉛直軸を中心に断続的
に回転させ、また硝酸溶解液を硝酸溶解液注入口
→バケツトの螺旋状通路→硝酸溶解液及び剪断片
残渣の排出口へ流通させ、さらに加熱装置により
バケツト内の硝酸溶解液を加熱する。このとき、
燃料剪断片を剪断片入口シユーター→バケツトの
螺旋状通路へ投入し、同燃料剪断片を慣性力と自
重とにより次第に下方へ導いて、溶解し、螺旋状
通路の最下部に達した剪断片の残渣をバケツトの
底部に設けた開口部から硝酸溶解液及び剪断片残
渣の排出口へ落下させて、次の工程、即ち、剪断
片残渣と硝酸溶解液との分離工程へ送るので、前
記従来のように早期に腐食、摩耗、破損し易い多
数のローラ等を不要にでき、部品点数を少なくで
きて、竪型連続溶解槽の構造を簡単化できる上
に、部品の腐食、摩耗、損傷等を可及的に防止で
きる。(Effect of the invention) The vertical continuous melting tank of the invention drives the rotary drive device as described above, transmits the rotation to the bucket via the drive shaft, and rotates the bucket intermittently around the vertical axis. In addition, the nitric acid solution is passed through the nitric acid solution inlet → the spiral passage of the bucket → the nitric acid solution and shearing fragment residue outlet, and the nitric acid solution in the bucket is further heated by a heating device. At this time,
The fuel sheared pieces are introduced into the helical passage from the sheared piece inlet shooter to the bucket, and the fuel sheared pieces are gradually guided downward by inertia and their own weight, melting, and the sheared pieces reaching the bottom of the spiral passage. The residue is dropped from the opening provided at the bottom of the bucket to the discharge port for the nitric acid solution and the sheared fragment residue, and sent to the next step, that is, the separation step of the sheared fragment residue and the nitric acid solution, which is different from the conventional method described above. This eliminates the need for many rollers that are prone to corrosion, wear, and damage at an early stage, reduces the number of parts, and simplifies the structure of the vertical continuous melting tank. This can be prevented as much as possible.
また部品の保守、管理、交換時には、遠隔操作
によりボルトを取り外して、竪型連続溶解槽を溶
解槽本体上部と溶解槽本体とに２分割した後、部
品の保守、管理、交換を行うので、遠隔操作によ
る部品の保守、管理、交換を容易に行うことがで
きる。 In addition, when maintaining, managing, and replacing parts, the bolts are removed by remote control and the vertical continuous melting tank is divided into two parts: the upper part of the melting tank body and the main body of the melting tank, and then the parts are maintained, managed, and replaced. Parts can be easily maintained, managed, and replaced by remote control.
第１図は本考案の竪型連続溶解槽の一実施例を
示す縦断側面図、第２図は第１図の矢視−線
に沿う横断平面図、第３図は従来の竪型連続溶解
槽を示す縦断側面図である。
１１……回転駆動装置、１２……駆動軸、１４
……剪断片入口シユーター、１５……溶解槽本体
上部、１６……溶解槽本体、１７……オーバーフ
ロー管、１８……バケツト、１９……硝酸溶解液
及び剪断片残渣の排出口、２０……垂直軸、２３
……ボルト、２４……硝酸溶解液注入口、２５…
…加熱装置、２６……オフガス出口、２７……螺
旋状通路。
Fig. 1 is a vertical side view showing an embodiment of the vertical continuous melting tank of the present invention, Fig. 2 is a cross-sectional plan view taken along the arrow line in Fig. 1, and Fig. 3 is a conventional vertical continuous melting tank. FIG. 3 is a vertical side view showing the tank. 11...Rotary drive device, 12...Drive shaft, 14
... Shearing fragment inlet shooter, 15 ... Upper part of the dissolution tank main body, 16 ... Dissolution tank main body, 17 ... Overflow pipe, 18 ... Bucket, 19 ... Discharge port for nitric acid solution and shearing fragment residue, 20 ... vertical axis, 23
...Volt, 24...Nitric acid solution inlet, 25...
...Heating device, 26...Off gas outlet, 27...Spiral passage.
Claims (1)
環状空間部に形成した二重筒状のバケツトと、同
バケツトを取り囲む溶解槽本体と、同溶解槽本体
の上部に遠隔操作可能なボルトを介して着脱自在
に取付けた溶解槽本体上部と、同溶解槽本体上部
上に設置した回転駆動装置と、同回転駆動装置か
ら上記溶解槽本体上部を貫通して上記バケツトの
上部中心に取付けた駆動軸と、上記溶解槽本体の
底部から上方に突出して上記バケツトの底部中心
を回転可能に支持する垂直軸と、上記溶解槽本体
上部に設けて上記螺旋状通路に対向した剪断片入
口シユーターと、上記溶解槽本体上部に設けて上
記螺旋状通路に対向した硝酸溶解液注入口と、上
記溶解槽本体上部に設けたオフガス出口と、溶解
槽本体の底部に設けた硝酸溶解液及び剪断片残渣
の排出口と、上記溶解槽本体の側壁上部に設けた
オーバーフロー管と、同溶解槽本体の外周面に設
けた加熱装置とを具えていることを特徴とした竪
型連続溶解槽。 A double cylindrical bucket with a spiral passage open at both upper and lower ends formed in the annular space between the inner and outer cylinders, a melting tank body surrounding the bucket, and a remotely controllable bolt on the top of the melting tank body. a rotary drive device installed on the top of the melting tank main body; and a drive that penetrates the top of the melting tank body from the rotary drive device and is attached to the center of the upper part of the bucket. a vertical shaft that protrudes upward from the bottom of the dissolution tank main body and rotatably supports the center of the bottom of the bucket; a shear piece inlet shooter provided at the top of the dissolution tank main body and opposed to the spiral passage; A nitric acid solution inlet provided at the top of the dissolution tank body and facing the spiral passage; an off-gas outlet provided at the top of the dissolution tank main body; and a nitric acid solution inlet and sheared fragment residue provided at the bottom of the dissolution tank main body. A vertical continuous melting tank characterized by comprising a discharge port, an overflow pipe provided on the upper side wall of the melting tank main body, and a heating device provided on the outer peripheral surface of the melting tank main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14756887U JPH0543852Y2 (en) | 1987-09-29 | 1987-09-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14756887U JPH0543852Y2 (en) | 1987-09-29 | 1987-09-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6452533U JPS6452533U (en) | 1989-03-31 |
| JPH0543852Y2 true JPH0543852Y2 (en) | 1993-11-05 |
Family
ID=31418089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14756887U Expired - Lifetime JPH0543852Y2 (en) | 1987-09-29 | 1987-09-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0543852Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60147698A (en) * | 1984-01-13 | 1985-08-03 | 三菱重工業株式会社 | Melting tank |
-
1987
- 1987-09-29 JP JP14756887U patent/JPH0543852Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60147698A (en) * | 1984-01-13 | 1985-08-03 | 三菱重工業株式会社 | Melting tank |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6452533U (en) | 1989-03-31 |
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