JP2004141935A - Production device for solidified grinding sludge - Google Patents

Production device for solidified grinding sludge Download PDF

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Publication number
JP2004141935A
JP2004141935A JP2002310432A JP2002310432A JP2004141935A JP 2004141935 A JP2004141935 A JP 2004141935A JP 2002310432 A JP2002310432 A JP 2002310432A JP 2002310432 A JP2002310432 A JP 2002310432A JP 2004141935 A JP2004141935 A JP 2004141935A
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JP
Japan
Prior art keywords
gate
grinding
cylindrical mold
guide member
grinding sludge
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Application number
JP2002310432A
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Japanese (ja)
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JP3959014B2 (en
Inventor
Kanji Nakamura
中村 莞爾
Takashi Yoshikawa
吉川 隆志
Michiyuki Tameike
溜池 満行
Daijiro Yokomizo
横溝 大二朗
Yoshio Kataoka
片岡 良男
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
UNI TOP KK
NTN Corp
Noritake Co Ltd
Nicotec Co Ltd
Original Assignee
UNI TOP KK
NTN Corp
Noritake Co Ltd
Nicotec Co Ltd
NTN Toyo Bearing Co Ltd
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Application filed by UNI TOP KK, NTN Corp, Noritake Co Ltd, Nicotec Co Ltd, NTN Toyo Bearing Co Ltd filed Critical UNI TOP KK
Priority to JP2002310432A priority Critical patent/JP3959014B2/en
Publication of JP2004141935A publication Critical patent/JP2004141935A/en
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Publication of JP3959014B2 publication Critical patent/JP3959014B2/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B9/00Presses specially adapted for particular purposes
    • B30B9/32Presses specially adapted for particular purposes for consolidating scrap metal or for compacting used cars
    • B30B9/327Presses specially adapted for particular purposes for consolidating scrap metal or for compacting used cars for briquetting scrap metal
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B9/00Presses specially adapted for particular purposes
    • B30B9/02Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/04Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using press rams
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B9/00Presses specially adapted for particular purposes
    • B30B9/02Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/04Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using press rams
    • B30B9/06Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using press rams co-operating with permeable casings or strainers
    • B30B9/067Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using press rams co-operating with permeable casings or strainers with a retractable abutment member closing one end of the press chamber

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Treatment Of Sludge (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a production device for solidified grinding sludge which prevents intrusion of grinding liquid to a slide guide part of a guide member, consistently maintains an adequate space between contact surfaces of a gate and a die and smooth motion of the gate, and enables consistent operation for a long time. <P>SOLUTION: The production device for solidified grinding sludge comprises a cylindrical die 1 with grinding sludge filled therein, a gate 2, a piston 3, a guide member 4, and a blocking means 5. The gate 2 opens/closes an outlet 1a at an end portion of the cylindrical die 1. The piston 3 is provided in the cylindrical die 1 in an advancing/retractable manner to squeeze the grinding sludge in the die. The guide member 4 guides the gate 2 slidably along an end face of the cylindrical die 1 at both side parts. The blocking means 5 is positioned between the guide member 4 and the outlet 1a of the cylindrical die 1 to stop the fluid flow streaming down an outer peripheral surface of the gate 2 toward the guide member 4 side. The blocking means 5 comprises a blocking plate 41. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
この発明は、鋼材等の研削ラインで発生した研削スラッジをブリケットに固形化する研削スラッジの固形化物製造装置に関する。
【0002】
【従来の技術】
各種の機械部品等の研削ラインにおいて、研削により生じた粉状の研削屑は、研削液と共にスラッジとして機外に流して排出し、ろ過の後、研削液を研削に再利用する。ろ過により残った研削スラッジは、汚泥として埋め立て処理される。しかし、研削スラッジの埋め立ては、環境の面から好ましくないばかりでなく、産廃処理場の行き詰まりから、今後、埋め立て処理ができなくなることは明白である。研削で生じる研削屑の量は、切削等に比べて少ないが、軸受等のような量産ラインでは、その発生量は多量となる。
このため、研削スラッジを圧搾することにより固形化し、絞り出された研削液を再利用すると共に、その固形化物(以下「ブリケット」という)を製鋼材として再利用することが検討されている。
【0003】
研削スラッジを固形化する固形化物製造装置としては、ゲート方式とダブルシリンダ方式の2種類に大別される。ゲート方式は、ダブルシリンダ方式に比べて構成が簡素で、小型にできるという利点がある。
ゲート方式は、図10に示すように研削スラッジを入れる円筒状金型81と、ガイド部材84でスライド自在に支持され円筒状金型81の一端を閉じるゲート82と、他端側から進退自在に挿入された1つの加圧用のピストン83とを備える。ピストン83を加圧シリンダ85で加圧することにより、研削スラッジは円筒状金型81内で圧搾され、ブリケットBとなる。
【0004】
【特許文献1】
特許第2949664号公報
【0005】
【発明が解決しようとする課題】
図10のようなゲート方式の固形化物製造装置では、固形化処理時に搾り出された研削液が、ゲート82と円筒状金型81の接触面の隙間から流れ出て、ゲート82とガイド部材84間のスライド部86に侵入する。この流れ出る研削液は細かな研削屑および微量の砥粒を含んでいて、スライド部86に侵入すると、次のような障害を招き、長期の安定稼働が困難となる。
▲1▼.ガイド部材84やゲート82がスライド部86で摩耗してゲート82と円筒状金型81との接触面の適正隙間を安定して維持できない。特に、水溶性研削液の研削スラッジは、砥粒を多く含んでいるため摩耗し易い。
▲2▼.スライド部86に侵入した研削液が乾燥してその研削屑がスライド部86内に固着状態に残るため、ゲート82が動き難くなる。研削液が水性の場合は、この乾燥による研削屑の固着の問題が大きい。
【0006】
この発明の目的は、ガイド部材のスライド案内部への研削液の侵入を防止して、ゲートと金型との接触面の適正隙間の安定維持、およびゲートの円滑な動きの維持が図れ、長期に安定稼働することができる研削スラッジの固形化物製造装置を提供することである。
【0007】
【課題を解決するための手段】
この発明の研削スラッジの固形化物製造装置は、研削液含有の研削スラッジを、圧搾により固形化物とする装置であって、上記研削スラッジを充填する円筒状金型と、この円筒状金型の端部開口からなる固形化物の出口を開閉するゲートと、上記円筒状金型内に進退自在に設けられ円筒状金型内の研削スラッジを圧搾するピストンと、上記出口を開閉可能なように上記ゲートを円筒状金型の端面に沿ってスライド可能にゲート両側部で案内するガイド部材と、このガイド部材と上記円筒状金型の開口との間に位置して上記ゲートの外周面を伝うガイド部材側への研削液流れを止める遮蔽手段とを備えたものである。
この構成によると、円筒状金型内に充填された研削スラッジは、ゲートとピストンとの間で圧搾され、固形化物とされる。圧搾時に搾り出された研削液は、細かな研削屑や砥粒を含んでいて、ゲートの表面を伝わってガイド部材によるスライド案内部側へ流れようとするが、このガイド表面を伝わる研削液の流れが遮蔽手段で止められる。そのため、研削液のスライド案内部への侵入が防止されることで、摩耗が回避できて、ゲートと円筒状金型の接触面の適正隙間が安定維持され、また研削屑等の乾燥固着が防止されてゲートの円滑な動きが維持され、長期に安定稼働できる。
【0008】
上記遮蔽手段は、ゲートの外周面を伝うガイド部材側への研削液流れを止めることのできる手段であれば良く、例えばゴム製シールや拭き取り手段など、ゲートとは別に設置されてゲートに接するもの等であっても良いが、次の構成のものが好ましい。
すなわち、上記遮蔽手段は、上記ゲートに設けられて上記円筒状金型の端面と非接触で上記ゲートの外周に張り出す部材またはゲート部分としても良い。外周に張り出す部材は、ゲートに取付けられた部材のことであり、ゲート部分はゲートと一体に形成された部材のことである。
この構成の場合、遮蔽手段がゲート外周に張り出すことで、ゲートの円筒状金型の出口を塞ぐ部分からガイド部材によるスライド案内部までの沿面距離が長くなり、また表面を伝う方向も急変する。そのため研削液のスライドガイド部への流れが生じ難くなる。また、遮蔽手段は、ゲートの外周に張り出す部材またはゲート部分であるため、簡素な構成で済む。
【0009】
上記遮蔽手段をゲートの外周に張り出す部材とする場合に、上記遮蔽手段は、ゲートに取付けられた遮蔽板としても良い。遮蔽板とすると、簡素な構造で、場所を採らずにゲート表面の沿面距離をより長く得ることが容易で、ガイド部材側への確実な流れ防止が行える。
【0010】
上記ゲートは、両側部が上記ガイド部材で案内される被案内部と、この被案内部よりも幅狭とされて上記被案内部から円筒状金型の出口側に突出しこの出口を蓋する蓋部とでなるものとしても良い。この場合に、上記遮蔽手段は上記蓋部の外周に張り出す部材または部分としても良い。
このようにゲートを被案内部とこれより突出する蓋部とで構成した場合は、ガイド部材によりスライド自在に支持する部位を、ゲートの円筒状金型に接する部位から遠くに離す構成が取り易い。また、その突出した蓋部に張り出し状態に遮蔽手段を設けることができて、沿面距離を長く得る構成が取り易い。これらのため、より一層確実に漏れ研削液の流れ防止が行える。
【0011】
また、ガイド部材におけるゲートを案内する案内面よりも上記円筒状金型の出口側の部分と、上記ゲートの外周に張出状態に設けられた遮蔽手段との間で、非接触シールを構成しても良い。
非接触シールが追加されることで、研削液の侵入をより確実に防止することができる。また、この非接触シールは、ゲートの外周に張出状態に設けられた遮蔽手段とガイド部材の一部を利用するものであるため、構成も簡単である。
【0012】
上記ゲート部材を、上記被案内部と蓋部とで構成する場合に、上記被案内部となる部材と上記蓋部となる部材とに分割し、両部材を着脱可能に結合して構成してもよい。
このような分割構成とした場合には、ガイド部材の構成部品が簡素になって製造し易く安価に製造できる。例えば、ブリケットに対してスライドする蓋部には予め熱処理が必要であるが、被案内部に対して蓋部が着脱可能であることから、このような蓋部の熱処理も容易に行うことができる。また、分割構造であると、加圧部となって摩耗の生じ易い蓋部を交換する場合に、ゲートの全体を交換する必要がなく、蓋部となる部材だけの交換で済み、保守のコストが削減できる。
【0013】
【発明の実施の形態】
この発明の一実施形態を図面と共に説明する。図1はこの研削スラッジの固形化物製造装置の概略構成を示す平面断面図である。この固形化物製造装置は、研削盤で発生した研削液含有の研削スラッジを、圧搾により固形化物であるブリケットBとする装置である。この固形化物製造装置は、上記研削スラッジを充填する円筒状金型1と、この円筒状金型1の端部開口からなるブリケットBの出口1aを開閉するゲート2と、円筒状金型1内に進退自在に設けられ円筒状金型1内の研削スラッジを圧搾するピストン3とを備える。ゲート2は、ガイド部材4により、円筒状金型1の端面に沿ってスライド可能にゲート両側部で案内され、スライドによって円筒状金型1の出口1aを開閉する。この実施形態は、このような構成の固形化物製造装置において、ガイド部材4と円筒状金型1の出口1aとの間に位置して、遮蔽手段5が設けたものである。遮蔽手段5は、ゲート2の外周面を伝うガイド部材4側への研削液流れを止める手段である。
【0014】
図2および図3は、この固形化物製造装置の具体的な構成を示す正面図および一部破断平面図である。円筒状金型1は枠組体12に略水平に設置され、枠組体12は基台11上に脚部材21を介して設置される。枠組体12は、円筒状金型1におけるブリケット出口1a側である一端部をその外周で保持する前部保持部材13と、この前部保持部材13に一端が連結固定される上下一対の水平連結板14,15と、これら水平連結板14,15の他端が連結固定される後部保持部材16とで構成される。後部保持部材16に、上記ピスト3を進退駆動する進退駆動手段17が設置されている。進退駆動手段17は、油圧式のシリンダ装置からなる。
【0015】
固形化物製造装置の正面断面図を図5に示す。円筒状金型1のブリケット出口1aとは反対側の端部に近い金型上壁部分に、スラッジ入口18が開口させてある。このスラッジ入口18に臨んで、枠組体12を構成する上側水平連結板14に、スラッジ投入口19が開口させてある。スラッジ入口18には、スラッジ投入口19を介して、同図に仮想線で示すように搬入シュート20の出口が続く。この搬入シュート20より研削スラッジが投入される。搬入シュート20から投入する研削スラッジは、研削ラインで発生した研削屑および研削液含有の研削スラッジで、ろ過および濃縮過程を経て濃縮された状態のものである。上記研削液は、油性のものであっても水性のものであっても良い。
【0016】
図3,図8,図9のように、ガイド部材4は、ゲート2の両側部をそれぞれ上下にスライド自在に嵌合させる一対の対向する溝形の案内面4a,4aを形成した部材である。ガイド部材4は、背面部材25と、左右一対の側部部材26,26とに分割されており、上記溝形の案内面4a,4aにおける片方の溝側面部は互いに背面部材25の内面によって連続している。各側部部材26,26は、上下に延びる突条26aが形成されていて、この突条26aにより、上記溝形の案内面4a,4aにおけるもう片方の溝側面部が形成される。ガイド部材4の全体としては、両側の対向する案内面4a,4aと背面部材25とで、1つのリップ溝形状を成している。上記突条26aが、そのリップ部を構成する。ガイド部材4は、側部部材26,26が枠組体12の前部保持部材13に接するように配置され、背面部材25および側部部材26が、両者を貫通したボルト27によって前部保持部材13に固定される。側部部材26は、組立の便利のために別のボルト28によっても前部保持部材13に固定される。
ゲート2は、両側部がガイド部材4に昇降自在に案内される被案内部31と、この被案内部31よりも幅狭とされた蓋部32とでなる。蓋部32は、被案内部31から円筒状金型1の出口1a側に突出し、この出口1aを蓋する。被案内部31と蓋部32とは、それぞれ別の部材で構成されていて、ボルト33(図5)により着脱可能に結合される。蓋部32は、円筒状金型1の出口aの内径よりも大きな外径の円柱状に形成されていて、被案内部31の金型対向面に形成された凹部に嵌合し、上記ボルト33により結合される。
このゲート2は、図4に側面図および破断側面図で示すように、昇降駆動手段34によって昇降駆動される。昇降駆動手段34は油圧シリンダからなり、ガイド部材4の左右一対の側部部材26,26の上に取付台35を介して垂直姿勢に設置されている。そのピストンロッド36が、ゲート2を構成する被案内部31の上方に突出する首部31aにピン37を介して連結されている。
【0017】
図8および図6のように、遮蔽手段5は、ゲート2に設けられてゲート2の外周に張り出す遮蔽板41で構成される。遮蔽板41は、リング状の取付基体42を有し、この取付基体42をゲート2の蓋部32に嵌合させ、その取付基体42をボルト43でゲート2の被案内部31に結合することにより、ゲート2に取付けられている。なお、遮蔽板41は、ゲート2の一部として一体に形成されたものもでもよい。ここでは、遮蔽板41は、ガイド部材4の側部部材26の突条26aよりも円筒状金型1の出口1a寄りの位置に配置され、かつ突条26aの頂部よりも外径側に突出して側部部材26,26に非接触となるように設けられている。詳しくは、図8の一部を拡大して示す図9のように、ガイド部材4におけるゲート2を案内する案内面4aよりも円筒状金型1の出口1a側の部分と、ゲート2の外周に張出状態に設けられた遮蔽板41との間で、ラビリンスシール状の非接触シール51が構成されている。なお、非接触シール51は必ずしも設けなくても良い。
【0018】
図2および図4に示すように、円筒状金型1を支持する枠組体12には、円筒状金型1のブリケット出口1aから押し出されるブリケットB(図7)を装置外に排出する排出シュート44が設置されている。また、ゲート2の下端には、円筒状金型1のブリケット出口1aからブリケットBが押し出されるときに、排出シュート44の両側壁を構成する逆U字状のシュートフェンス45が取付けられている。シュートフェンス45は、排出シュート44を跨ぐ配置となるように設置されている。また、固形化物製造装置を支持する基台11には、研削液ガイド46と研削液貯留パン47が設置されている。これら研削液ガイド46および研削液貯留パン47は、研削スラッジが固形化処理されるときに、円筒状金型1とゲート2の接触面隙間から漏れて排出シュート44を伝って流下する研削液を受けるものである。
【0019】
上記構成の動作を説明する。図5のように、円筒状金型1内に挿入されたピストン3が円筒状金型1のスラッジ入口18よりも後方に退避した状態で、搬入シュート20を経て研削液含有の濃縮状態の研削スラッジが、円筒状金型1内に投入される。なお、投入の前に、上方位置に退避させていたゲート2は昇降駆動手段34により下降させ、図7のようにゲート2の蓋部32で円筒状金型1のブリケット出口1aを閉じておく。
研削スラッジが所定量投入されると、進退駆動手段17(図2)により円筒状金型1内のピストン3が進出駆動される。これにより、円筒状金型1内の研削スラッジがゲート2の蓋部32とピストン3とで挟まれて圧搾され、円柱状のブリケットBに固形化される。この圧搾により搾り出された研削液は、円筒状金型1とゲート蓋部32の接触面の隙間から漏れ出て、排出シュート44および研削液ガイド46を経て研削液貯留パン47を経て機外へ排出される。
【0020】
漏れ出た研削液の一部は、ゲート2の外周面を伝ってガイド部材4側へ流れようとするが、ガイド部材4のガイド面4aと円筒状金型1のブリケット出口1aとの間に位置する遮蔽手段5により、その流れが阻止される。この場合に、遮蔽手段5の遮蔽板41によりゲート2の沿面距離が長くなっていること、および流れ方向が変えられることによって、流れが阻止されると共に、非接触シール51によっても阻止される。
このため、ガイド部材4の両側部における案内面4aに研削液が流れてその研削屑等が乾燥,固着することが回避される。したがって、案内面4aに固着した研削屑でゲート2が動き難くなることが防止される。また、その砥粒により案内面4aやゲート2が摩耗してゲート2と円筒状金型1の接触面の適正隙間を安定維持できなくなるという事態も回避される。このため、長期の安定稼働が可能となる。
【0021】
研削スラッジの固形化が完了すると、ゲート2は昇降駆動手段34により図6に示すように、円筒状金型1のブリケット出口1aが完全に開放される上方の待機位置まで上昇退避させられる。この退避状態で、ゲート2の下端に設置されたシュートフェンス43は排出シュート44の両側をカバーする壁となる。
ついで、進退駆動手段17によりピストン3が円筒状金型1のブリケット出口1aの先端まで進出させられ、これによりピストン1内のブリケットBが排出シュート44に排出される。排出シュート44をブリケットBが落下するときに、その両側はシュートフェンス45でカバーされているので、ブリケットBを排出シュートに沿わせて円滑に排出することができる。ブリケットBをシンリダ1から押し出した後、ピストン3は進退駆動手段17によりブリケット投入口1aより後方の待機位置まで後退し、次のブリケット形成を待つ。
【0022】
この実施形態では、ガイド部材4は、被案内部31と蓋部32とを着脱可能に結合してなるので、ガイド部材4を安価に構成できると共に、加圧部となる摩耗し易い蓋部32の交換を簡単に行うことができる。また、ブリケットに対すスライドする蓋部32には予め熱処理が必要であるが、被案内部31に対して蓋部32が着脱可能であることから、このような蓋部32の熱処理も容易に行うことができる。
【0023】
なお、上記実施形態では、遮蔽手段5はゲート2側に設けた遮蔽板41等で構成した場合について説明したが、これに限らず、遮蔽手段5は、例えばガイド部材4等に固定設置したものであっても良い。
【0024】
【発明の効果】
この発明の研削スラッジの固形化物製造装置は、円筒状金型の端部の出口をゲートで開閉する形式の装置において、ゲートを案内するガイド部材と円筒状金型の出口との間に、ゲート外周面を伝う研削液流れを止める遮蔽手段を設けたため、ガイド部材のスライド案内部への研削液の侵入を防止して、ゲートと金型との接触面の適正隙間の安定維持、およびゲートの円滑な動きの維持が図れ、長期にわたり安定稼働することができる。
上記遮蔽手段をゲートに取付けた遮蔽板で構成した場合は、簡単な構成でスライド案内部への研削液の侵入を防止することができる。
【図面の簡単な説明】
【図1】この発明の一実施形態にかかる研削スラッジの固形化物製造装置の概略構成を示す平面断面図である。
【図2】同固形化物製造装置の具体的構成を示す正面図である。
【図3】同固形化物製造装置の一部破断平面図である。
【図4】(A)は同固形化物製造装置の側面図、(B)は同固形化物製造装置の一部破断側面図である。
【図5】同固形化物製造装置の一部破断正面図である。
【図6】同固形化物製造装置における要部を拡大して示す正面断面図である。
【図7】同固形化物製造装置による固形化処理の状態を示す正面断面図である。
【図8】同固形化物製造装置における要部を拡大して示す平面断面図である。
【図9】図8の一部を拡大して示す平面断面図である。
【図10】従来例の概略構成を示す平面断面図である。
【符号の説明】
1…円筒状金型
1a…出口
2…ゲート
3…ピストン
4…ガイド部材
4a…ガイド面
5…遮蔽手段
17…進退駆動手段
31…ゲートの被案内部
32…ゲートの蓋部
34…昇降駆動手段
41…遮蔽板
51…非接触シール
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an apparatus for manufacturing solidified grinding sludge which solidifies grinding sludge generated in a grinding line of steel or the like into briquettes.
[0002]
[Prior art]
In a grinding line for various types of mechanical parts, powdery grinding dust generated by grinding flows out of the machine as sludge together with grinding fluid and is discharged. After filtration, the grinding fluid is reused for grinding. Grinding sludge remaining by filtration is landfilled as sludge. However, landfilling of grinding sludge is not only unfavorable from an environmental point of view, but it is clear that landfilling will not be possible in the future due to deadlock in an industrial waste treatment plant. The amount of grinding waste generated by grinding is smaller than that of cutting and the like, but the amount of generated grinding waste is large in a mass production line such as a bearing.
For this reason, it has been studied to solidify the grinding sludge by squeezing, reuse the squeezed grinding fluid, and reuse the solidified product (hereinafter referred to as “briquette”) as a steel material.
[0003]
Solidified material manufacturing apparatuses for solidifying grinding sludge are roughly classified into two types, a gate type and a double cylinder type. The gate method has an advantage that the structure is simpler and the size can be reduced as compared with the double cylinder method.
As shown in FIG. 10, the gate system includes a cylindrical mold 81 into which grinding sludge is put, a gate 82 that is slidably supported by a guide member 84 and closes one end of the cylindrical mold 81, and is freely movable from the other end side. And one inserted pressurizing piston 83. By pressurizing the piston 83 with the pressurizing cylinder 85, the grinding sludge is squeezed in the cylindrical mold 81 and becomes a briquette B.
[0004]
[Patent Document 1]
Japanese Patent No. 2949664 [0005]
[Problems to be solved by the invention]
In the gate type solidified product manufacturing apparatus as shown in FIG. 10, the grinding fluid squeezed out during the solidification process flows out of the gap between the contact surface of the gate 82 and the cylindrical mold 81, and the gap between the gate 82 and the guide member 84. Into the slide portion 86 of the. The flowing grinding fluid contains fine grinding chips and a small amount of abrasive grains. When the grinding fluid enters the slide portion 86, the following obstacles are caused, and stable operation for a long time becomes difficult.
▲ 1 ▼. The guide member 84 and the gate 82 are worn by the slide portion 86, and an appropriate gap between the contact surface between the gate 82 and the cylindrical mold 81 cannot be stably maintained. In particular, grinding sludge of a water-soluble grinding fluid is liable to be worn because it contains a large amount of abrasive grains.
▲ 2 ▼. The grinding fluid that has entered the slide portion 86 dries and the grinding debris remains in the slide portion 86, so that the gate 82 becomes difficult to move. When the grinding fluid is water-based, the problem of sticking of grinding chips due to the drying is significant.
[0006]
SUMMARY OF THE INVENTION An object of the present invention is to prevent the intrusion of a grinding fluid into a slide guide portion of a guide member, to stably maintain a proper gap between a contact surface of a gate and a mold, and to maintain a smooth movement of a gate. It is an object of the present invention to provide an apparatus for producing a solidified product of grinding sludge which can be operated stably.
[0007]
[Means for Solving the Problems]
An apparatus for producing a solidified product of a grinding sludge according to the present invention is an apparatus for converting a grinding sludge containing a grinding fluid into a solidified product by squeezing, and a cylindrical mold for filling the grinding sludge, and an end of the cylindrical mold. A gate for opening and closing the outlet of the solidified material comprising an opening, a piston provided to be able to advance and retreat in the cylindrical mold and pressing the grinding sludge in the cylindrical mold, and the gate for opening and closing the outlet Guide member slidably guided on both sides of the gate along the end surface of the cylindrical mold, and a guide member located between the guide member and the opening of the cylindrical mold and traveling along the outer peripheral surface of the gate. Shielding means for stopping the flow of the grinding fluid to the side.
According to this configuration, the grinding sludge filled in the cylindrical mold is squeezed between the gate and the piston to be solidified. The grinding fluid squeezed out at the time of squeezing contains fine grinding debris and abrasive grains, and tends to flow along the surface of the gate to the slide guide portion side by the guide member. The flow is stopped by the shielding means. Therefore, by preventing the grinding fluid from entering the slide guide portion, wear can be avoided, the appropriate clearance between the contact surface of the gate and the cylindrical mold can be stably maintained, and the drying and fixation of grinding chips and the like can be prevented. As a result, the gate moves smoothly and can operate stably for a long time.
[0008]
The shielding means may be any means that can stop the flow of the grinding fluid to the guide member side that travels along the outer peripheral surface of the gate, such as a rubber seal or a wiping unit that is installed separately from the gate and is in contact with the gate. Etc., but the following configuration is preferable.
That is, the shielding means may be a member or a gate portion provided on the gate and projecting to the outer periphery of the gate in a non-contact manner with the end face of the cylindrical mold. The member protruding to the outer periphery is a member attached to the gate, and the gate portion is a member formed integrally with the gate.
In the case of this configuration, the creepage distance from the portion that closes the exit of the cylindrical mold of the gate to the slide guide portion by the guide member becomes longer, and the direction in which the surface travels is also suddenly changed because the shielding means projects to the outer periphery of the gate. . Therefore, the flow of the grinding fluid to the slide guide portion is less likely to occur. Further, since the shielding means is a member or a gate portion projecting to the outer periphery of the gate, a simple configuration is sufficient.
[0009]
In the case where the shielding means is a member projecting to the outer periphery of the gate, the shielding means may be a shielding plate attached to the gate. When the shielding plate is used, it is easy to obtain a longer creepage distance of the gate surface without taking a place with a simple structure, and it is possible to surely prevent the flow to the guide member side.
[0010]
The gate has a guided portion whose both sides are guided by the guide member, and a lid that is narrower than the guided portion and protrudes from the guided portion toward the outlet side of the cylindrical mold to cover the outlet. It is good also as what consists of a part. In this case, the shielding means may be a member or a portion projecting to the outer periphery of the lid.
In the case where the gate is constituted by the guided portion and the lid protruding from the gate in this way, it is easy to take a configuration in which the portion slidably supported by the guide member is far away from the portion of the gate that contacts the cylindrical mold. . Further, a shielding means can be provided in a protruding state on the protruding lid portion, so that it is easy to adopt a configuration in which the creepage distance can be increased. For these reasons, it is possible to more reliably prevent the flow of the leakage grinding fluid.
[0011]
In addition, a non-contact seal is formed between a portion of the guide member on the outlet side of the cylindrical mold with respect to a guide surface for guiding the gate and a shielding means provided in a protruding state on the outer periphery of the gate. May be.
By adding the non-contact seal, the intrusion of the grinding fluid can be more reliably prevented. In addition, since the non-contact seal uses a part of the shielding member and the guide member provided in a protruding state on the outer periphery of the gate, the configuration is simple.
[0012]
When the gate member is constituted by the guided portion and the lid portion, the gate member is divided into a member to be the guided portion and a member to be the lid portion, and both members are detachably connected to each other. Is also good.
In the case of such a divided configuration, the components of the guide member are simplified and can be easily manufactured at a low cost. For example, the lid that slides on the briquette requires heat treatment in advance, but since the lid is detachable from the guided part, such a heat treatment of the lid can be easily performed. . In addition, the split structure eliminates the need to replace the entire gate when replacing the lid, which is likely to be abraded due to the pressurized portion. Can be reduced.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a plan sectional view showing a schematic configuration of the apparatus for producing a solidified product of the grinding sludge. This apparatus for producing a solidified product is a device in which grinding sludge containing a grinding fluid generated in a grinding machine is converted into briquettes B, which are solidified by pressing. The solidified product manufacturing apparatus comprises: a cylindrical mold 1 for filling the grinding sludge; a gate 2 for opening and closing an outlet 1a of a briquette B having an end opening of the cylindrical mold 1; And a piston 3 that is provided so as to be able to advance and retreat, and presses the grinding sludge in the cylindrical mold 1. The gate 2 is slidably guided by guide members 4 on both sides of the gate along the end face of the cylindrical mold 1, and slides to open and close the outlet 1 a of the cylindrical mold 1. In this embodiment, a shielding means 5 is provided between the guide member 4 and the outlet 1a of the cylindrical mold 1 in the solidified product manufacturing apparatus having such a configuration. The shielding means 5 is a means for stopping the flow of the grinding fluid along the outer peripheral surface of the gate 2 toward the guide member 4.
[0014]
FIG. 2 and FIG. 3 are a front view and a partially cutaway plan view showing a specific configuration of the solidified product manufacturing apparatus. The cylindrical mold 1 is installed substantially horizontally on a frame assembly 12, and the frame assembly 12 is installed on a base 11 via leg members 21. The frame assembly 12 includes a front holding member 13 that holds one end of the cylindrical mold 1 on the side of the briquette outlet 1a on its outer periphery, and a pair of upper and lower horizontal connections, one end of which is connected and fixed to the front holding member 13. It is composed of plates 14, 15 and a rear holding member 16 to which the other ends of the horizontal connecting plates 14, 15 are connected and fixed. An advancing / retreating drive unit 17 for advancing and retreating the fixie 3 is provided on the rear holding member 16. The forward / backward drive means 17 is composed of a hydraulic cylinder device.
[0015]
FIG. 5 is a front sectional view of the solidified product manufacturing apparatus. A sludge inlet 18 is opened in the upper wall portion of the cylindrical mold 1 near the end opposite to the briquette outlet 1a. A sludge inlet 19 is opened in the upper horizontal connecting plate 14 constituting the framework 12 so as to face the sludge inlet 18. The sludge inlet 18 is followed by an outlet of a carry-in chute 20 as shown by a virtual line in FIG. Grinding sludge is supplied from the loading chute 20. Grinding sludge supplied from the loading chute 20 is grinding sludge containing grinding dust and a grinding fluid generated in the grinding line and is in a state of being concentrated through a filtration and concentration process. The grinding fluid may be oily or aqueous.
[0016]
As shown in FIGS. 3, 8, and 9, the guide member 4 is a member formed with a pair of opposed groove-shaped guide surfaces 4a, 4a for fitting both sides of the gate 2 slidably up and down. . The guide member 4 is divided into a back member 25 and a pair of left and right side members 26, 26. One of the groove side surfaces of the groove-shaped guide surfaces 4a, 4a is continuous with the inner surface of the back member 25. are doing. Each of the side members 26, 26 is formed with a ridge 26a extending vertically, and the ridge 26a forms the other groove side surface of the groove-shaped guide surfaces 4a, 4a. As a whole, the guide member 4 has a single lip groove shape formed by the opposing guide surfaces 4a, 4a and the back member 25 on both sides. The ridge 26a forms the lip portion. The guide member 4 is disposed such that the side members 26, 26 are in contact with the front holding member 13 of the frame assembly 12, and the back member 25 and the side member 26 are fastened by the bolt 27 penetrating both. Fixed to. The side member 26 is also fixed to the front holding member 13 by another bolt 28 for convenience of assembly.
The gate 2 includes a guided part 31 whose both sides are guided by the guide member 4 so as to be able to move up and down, and a lid part 32 which is narrower than the guided part 31. The lid part 32 projects from the guided part 31 to the outlet 1a side of the cylindrical mold 1, and covers the outlet 1a. The guided portion 31 and the lid portion 32 are formed of different members, respectively, and are detachably coupled by bolts 33 (FIG. 5). The lid portion 32 is formed in a cylindrical shape having an outer diameter larger than the inner diameter of the outlet a of the cylindrical mold 1, and is fitted into a recess formed on the mold facing surface of the guided portion 31, and 33.
The gate 2 is driven up and down by a lifting drive means 34 as shown in a side view and a cutaway side view in FIG. The lifting drive means 34 is composed of a hydraulic cylinder, and is installed on a pair of left and right side members 26, 26 of the guide member 4 in a vertical posture via a mount 35. The piston rod 36 is connected via a pin 37 to a neck 31 a projecting above the guided portion 31 constituting the gate 2.
[0017]
As shown in FIG. 8 and FIG. 6, the shielding means 5 is configured by a shielding plate 41 provided on the gate 2 and extending to the outer periphery of the gate 2. The shielding plate 41 has a ring-shaped mounting base 42. The mounting base 42 is fitted to the lid 32 of the gate 2, and the mounting base 42 is connected to the guided part 31 of the gate 2 by bolts 43. To the gate 2. The shielding plate 41 may be integrally formed as a part of the gate 2. Here, the shielding plate 41 is disposed at a position closer to the outlet 1a of the cylindrical mold 1 than the protrusion 26a of the side member 26 of the guide member 4, and protrudes outward from the top of the protrusion 26a. It is provided so as not to contact the side members 26, 26. More specifically, as shown in FIG. 9 which is an enlarged view of a part of FIG. 8, a portion of the guide member 4 closer to the outlet 1a side of the cylindrical mold 1 than the guide surface 4a for guiding the gate 2, and the outer periphery of the gate 2. A non-contact seal 51 in the form of a labyrinth seal is formed between the shield plate 41 and the shield plate 41 provided in an extended state. Note that the non-contact seal 51 does not necessarily have to be provided.
[0018]
As shown in FIGS. 2 and 4, a discharge chute for discharging a briquette B (FIG. 7) extruded from a briquette outlet 1 a of the cylindrical mold 1 to the outside of the apparatus is provided on a frame 12 supporting the cylindrical mold 1. 44 are provided. At the lower end of the gate 2, when the briquette B is pushed out from the briquette outlet 1a of the cylindrical mold 1, an inverted U-shaped chute fence 45 constituting both side walls of the discharge chute 44 is attached. The chute fence 45 is installed so as to straddle the discharge chute 44. Further, a grinding fluid guide 46 and a grinding fluid storage pan 47 are provided on the base 11 supporting the solidified material production apparatus. The grinding fluid guide 46 and the grinding fluid storage pan 47 supply the grinding fluid that leaks from the contact surface gap between the cylindrical mold 1 and the gate 2 and flows down the discharge chute 44 when the grinding sludge is solidified. Is what you get.
[0019]
The operation of the above configuration will be described. As shown in FIG. 5, in a state where the piston 3 inserted into the cylindrical mold 1 is retracted behind the sludge inlet 18 of the cylindrical mold 1, the grinding in the concentrated state containing the grinding fluid via the loading chute 20. Sludge is charged into the cylindrical mold 1. Prior to loading, the gate 2 which has been retracted to the upper position is lowered by the elevation drive means 34, and the briquette outlet 1a of the cylindrical mold 1 is closed by the lid 32 of the gate 2 as shown in FIG. .
When a predetermined amount of grinding sludge is charged, the piston 3 in the cylindrical mold 1 is driven forward and backward by the forward and backward driving means 17 (FIG. 2). As a result, the grinding sludge in the cylindrical mold 1 is sandwiched between the lid 32 of the gate 2 and the piston 3 and squeezed to be solidified into a cylindrical briquette B. The grinding fluid squeezed out by this squeezing leaks out of the gap between the cylindrical mold 1 and the contact surface between the gate lid 32, passes through the discharge chute 44 and the grinding fluid guide 46, passes through the grinding fluid storage pan 47, and then flows out of the machine. Is discharged to
[0020]
Part of the leaked grinding fluid tends to flow to the guide member 4 side along the outer peripheral surface of the gate 2, but between the guide surface 4 a of the guide member 4 and the briquette outlet 1 a of the cylindrical mold 1. The flow is blocked by the located shielding means 5. In this case, since the creepage distance of the gate 2 is increased by the shielding plate 41 of the shielding means 5 and the flow direction is changed, the flow is prevented and the non-contact seal 51 also prevents the flow.
For this reason, it is possible to prevent the grinding fluid from flowing on the guide surfaces 4a on both sides of the guide member 4 to dry and adhere the grinding chips. Therefore, it is possible to prevent the gate 2 from being difficult to move due to grinding dust fixed to the guide surface 4a. Further, it is also possible to avoid a situation in which the guide surface 4a and the gate 2 are worn by the abrasive grains and the appropriate clearance between the contact surface of the gate 2 and the cylindrical mold 1 cannot be stably maintained. Therefore, long-term stable operation is possible.
[0021]
When the solidification of the grinding sludge is completed, the gate 2 is moved up and down to the standby position above the briquette outlet 1a of the cylindrical mold 1 is completely opened, as shown in FIG. In this retracted state, the chute fence 43 installed at the lower end of the gate 2 becomes a wall that covers both sides of the discharge chute 44.
Next, the piston 3 is advanced to the tip of the briquette outlet 1a of the cylindrical mold 1 by the advance / retreat driving means 17, whereby the briquettes B in the piston 1 are discharged to the discharge chute 44. When the briquette B falls on the discharge chute 44, both sides thereof are covered with the chute fence 45, so that the briquette B can be discharged smoothly along the discharge chute. After the briquette B is pushed out of the thin lid 1, the piston 3 is retracted by the advance / retreat driving means 17 to a standby position behind the briquette slot 1a and waits for the next briquette formation.
[0022]
In this embodiment, since the guide member 4 is formed by detachably connecting the guided portion 31 and the lid portion 32, the guide member 4 can be configured at a low cost, and the lid portion 32 serving as a pressing portion is easily worn. Can be easily exchanged. In addition, the lid 32 that slides on the briquette requires heat treatment in advance, but since the lid 32 is detachable from the guided portion 31, such heat treatment of the lid 32 is also easily performed. be able to.
[0023]
In the above-described embodiment, the case where the shielding means 5 is configured by the shielding plate 41 and the like provided on the gate 2 side has been described. However, the present invention is not limited to this, and the shielding means 5 is fixedly installed on the guide member 4 or the like. It may be.
[0024]
【The invention's effect】
The apparatus for manufacturing a solidified product of grinding sludge according to the present invention is an apparatus of a type in which an outlet at an end of a cylindrical mold is opened and closed by a gate. Since the shielding means for stopping the flow of the grinding fluid along the outer peripheral surface is provided, the penetration of the grinding fluid into the slide guide portion of the guide member is prevented, and the appropriate clearance between the contact surface of the gate and the mold is stably maintained, and Smooth movement can be maintained and stable operation can be performed for a long time.
When the shielding means is constituted by a shielding plate attached to the gate, it is possible to prevent the grinding fluid from entering the slide guide portion with a simple configuration.
[Brief description of the drawings]
FIG. 1 is a plan sectional view showing a schematic configuration of an apparatus for producing a solidified product of a grinding sludge according to an embodiment of the present invention.
FIG. 2 is a front view showing a specific configuration of the solidified product manufacturing apparatus.
FIG. 3 is a partially broken plan view of the solidified product manufacturing apparatus.
FIG. 4A is a side view of the solidified product manufacturing apparatus, and FIG. 4B is a partially cutaway side view of the solidified product manufacturing apparatus.
FIG. 5 is a partially cutaway front view of the solidified product manufacturing apparatus.
FIG. 6 is an enlarged front sectional view showing a main part of the solidified product manufacturing apparatus.
FIG. 7 is a front sectional view showing a state of a solidification treatment by the solidified matter manufacturing apparatus.
FIG. 8 is an enlarged plan sectional view showing a main part of the solidified product manufacturing apparatus.
9 is an enlarged plan sectional view showing a part of FIG. 8;
FIG. 10 is a plan sectional view showing a schematic configuration of a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Cylindrical metal mold 1a ... Exit 2 ... Gate 3 ... Piston 4 ... Guide member 4a ... Guide surface 5 ... Shielding means 17 ... Advance driving means 31 ... Gate guided part 32 ... Gate lid part 34 ... Elevation driving means 41: shielding plate 51: non-contact seal

Claims (6)

研削液含有の研削スラッジを、圧搾により固形化物とする研削スラッジの固形化物製造装置であって、上記研削スラッジを充填する円筒状金型と、この円筒状金型の端部開口からなる固形化物の出口を開閉するゲートと、上記円筒状金型内に進退自在に設けられ円筒状金型内の研削スラッジを圧搾するピストンと、上記出口を開閉可能なように上記ゲートを円筒状金型の端面に沿ってスライド可能にゲート両側部で案内するガイド部材と、このガイド部材と上記円筒状金型の開口との間に位置して上記ゲートの外周面を伝うガイド部材側への研削液流れを止める遮蔽手段とを備えた研削スラッジの固形化物製造装置。An apparatus for manufacturing a solidified product of a grinding sludge in which a grinding sludge containing a grinding liquid is solidified by pressing, comprising a cylindrical mold for filling the grinding sludge, and an end opening of the cylindrical mold. A gate that opens and closes the outlet of the piston, a piston that is provided to be able to advance and retreat in the cylindrical mold and squeezes the grinding sludge in the cylindrical mold, and the gate of the cylindrical mold so that the outlet can be opened and closed. A guide member slidably guided along the end surface at both sides of the gate, and a grinding fluid flowing between the guide member and the opening of the cylindrical mold toward the guide member along the outer peripheral surface of the gate. Apparatus for producing a solidified product of grinding sludge, comprising a shielding means for stopping the grinding. 請求項1において、上記遮蔽手段は、上記ゲートに設けられて上記円筒状金型の端面と非接触で上記ゲートの外周に張り出す部材またはゲート部分である研削スラッジの固形化物製造装置。2. The apparatus for manufacturing solidified grinding sludge according to claim 1, wherein said shielding means is a member or a gate portion which is provided on said gate and projects to an outer periphery of said gate in a non-contact manner with an end face of said cylindrical mold. 請求項2において、上記遮蔽手段は上記ゲートに取付けられた遮蔽板である研削スラッジの固形化物製造装置。3. The apparatus according to claim 2, wherein the shielding means is a shielding plate attached to the gate. 請求項2または請求項3において、上記ゲートは、両側部が上記ガイド部材で案内される被案内部と、この被案内部よりも幅狭とされて上記被案内部から円筒状金型の出口側に突出しこの出口を蓋する蓋部とでなり、上記遮蔽手段は上記蓋部の外周に張り出す部材またはゲート部分である研削スラッジの固形化物製造装置。The gate according to claim 2 or 3, wherein the gate has a guided portion whose both sides are guided by the guide member, and the gate has a width smaller than that of the guided portion and an outlet of the cylindrical mold from the guided portion. A lid protruding to the side and covering the outlet, wherein the shielding means is a member protruding to the outer periphery of the lid or a solidified product of grinding sludge which is a gate portion. 請求項2ないし請求項4のいずれかにおいて、上記ガイド部材におけるゲートを案内する案内面よりも上記円筒状金型の出口側の部分と、上記ゲートの外周に張出す遮蔽手段との間で非接触シールを構成した研削スラッジの固形化物製造装置。In any one of claims 2 to 4, there is a non-contact between a portion of the guide member on the outlet side of the cylindrical mold with respect to a guide surface for guiding the gate, and a shielding means projecting to an outer periphery of the gate. Solid sludge production equipment for grinding sludge with a contact seal. 請求項4または請求項5において、上記ゲート部材は、上記被案内部となる部材と上記蓋部となる部材とに分割され、両部材が着脱可能に結合されたものである研削スラッジの固形化物製造装置。The solidified grinding sludge according to claim 4 or 5, wherein the gate member is divided into a member serving as the guided portion and a member serving as the lid, and both members are detachably connected. manufacturing device.
JP2002310432A 2002-10-25 2002-10-25 Solidified product manufacturing equipment for grinding sludge Expired - Lifetime JP3959014B2 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006101042A1 (en) * 2005-03-18 2006-09-28 Jtekt Corporation Compression molding machine for metal material briquette, manufacturing apparatus for metal material briquette, and compression molding method for metal material briquette
JP2013031826A (en) * 2011-06-28 2013-02-14 Industria:Kk Fine matter removing apparatus and fine matter removing system
CN117181416A (en) * 2023-10-10 2023-12-08 江苏锦明再生资源有限公司 Contain heavy metal caking sludge crushing device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006101042A1 (en) * 2005-03-18 2006-09-28 Jtekt Corporation Compression molding machine for metal material briquette, manufacturing apparatus for metal material briquette, and compression molding method for metal material briquette
US7824586B2 (en) 2005-03-18 2010-11-02 Jtekt Corporation Compression molding machine for briquette for metal raw material, manufacturing apparatus for briquette for metal raw material, and compression molding method thereof
JP2013031826A (en) * 2011-06-28 2013-02-14 Industria:Kk Fine matter removing apparatus and fine matter removing system
CN117181416A (en) * 2023-10-10 2023-12-08 江苏锦明再生资源有限公司 Contain heavy metal caking sludge crushing device
CN117181416B (en) * 2023-10-10 2024-03-05 江苏锦明再生资源有限公司 Contain heavy metal caking sludge crushing device

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