JP5051533B2 - Waste fluorescent lamp recycling method and apparatus - Google Patents
Waste fluorescent lamp recycling method and apparatus Download PDFInfo
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- JP5051533B2 JP5051533B2 JP2007274911A JP2007274911A JP5051533B2 JP 5051533 B2 JP5051533 B2 JP 5051533B2 JP 2007274911 A JP2007274911 A JP 2007274911A JP 2007274911 A JP2007274911 A JP 2007274911A JP 5051533 B2 JP5051533 B2 JP 5051533B2
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- 238000000034 method Methods 0.000 title claims description 33
- 239000002699 waste material Substances 0.000 title claims description 31
- 238000004064 recycling Methods 0.000 title claims description 17
- 239000011521 glass Substances 0.000 claims description 74
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 73
- 230000007246 mechanism Effects 0.000 claims description 17
- 238000000926 separation method Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 8
- 238000011084 recovery Methods 0.000 claims description 7
- 239000012634 fragment Substances 0.000 claims description 4
- 230000001678 irradiating effect Effects 0.000 claims description 4
- 230000010355 oscillation Effects 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 238000013459 approach Methods 0.000 claims 1
- 239000008400 supply water Substances 0.000 claims 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 26
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 12
- 229910052753 mercury Inorganic materials 0.000 description 12
- 238000004140 cleaning Methods 0.000 description 9
- 239000000843 powder Substances 0.000 description 5
- 238000011144 upstream manufacturing Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000005355 lead glass Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000005361 soda-lime glass Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
-
- 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
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- Processing Of Solid Wastes (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
- Luminescent Compositions (AREA)
- Manufacture And Refinement Of Metals (AREA)
Description
本発明は、廃蛍光ランプのリサイクル方法及び装置に関するものである。 The present invention relates to a recycling method and apparatus for waste fluorescent lamps.
現在、廃蛍光ランプのリサイクル対象は直管形や環形である。これらの蛍光ランプは形
状が統一されているため、コンベア上に並べられ、両端（直管）あるいは円周の一部（丸
管）の口金部分を自動的に切断することでガラス部を回収してきた。
Currently, waste fluorescent lamps are recycled for straight tube and ring types. Since these fluorescent lamps have a uniform shape, they are arranged on a conveyor, and the glass part is recovered by automatically cutting the bases at both ends (straight pipe) or part of the circumference (round pipe). It was.
ガラスはソーダ石灰ガラスであるが、口金付近だけは鉛ガラスを使用しており、鉛ガラ
スは口金部と共に回収される。切断後は筒状のガラス開口部より強く空気を吹き込み、ガ
ラス内壁に付着した蛍光体並びに水銀を空気と共に回収する。
Although the glass is soda-lime glass, lead glass is used only in the vicinity of the base, and the lead glass is collected together with the base part. After cutting, air is blown stronger than the cylindrical glass opening, and the phosphor and mercury adhering to the inner wall of the glass are collected together with the air.
丸管の場合、製造時加熱して管状に整形するため直管に比べ蛍光体のガラスへの固着力
が強く、空気と共にショット剤を吹き込むこともある。
In the case of a round tube, since it is heated and shaped into a tubular shape at the time of manufacture, the phosphor is more firmly fixed to the glass than a straight tube, and a shot agent may be blown together with air.
また、破砕されたガラス片からの蛍光体および水銀の回収方法についても、従来、いくつか提案されている。例えば、乾式処理では、ボールミル等によりガラス表面に付着した
蛍光体等を剥離して篩い分けをする方法(特許文献１参照)、気体と固体粒子のプラグ流よ
りなるブラスト流により蛍光体等を剥離する方法(特許文献２参照)が提案されている。
Several methods for recovering phosphors and mercury from crushed glass pieces have been proposed. For example, in dry processing, a method of separating and sieving phosphors and the like adhering to the glass surface by a ball mill or the like (see Patent Document 1), and removing phosphors and the like by a blast flow comprising a plug flow of gas and solid particles A method (see Patent Document 2) has been proposed.
さらに、破砕ガラスを研磨タンク内で振動させながら蛍光体等を剥離する方法(特許文
献３参照)、回転密閉容器内において、ブラシにより(特許文献４参照)、あるいは隔壁と
掻き上げ板により蛍光体等を剥離する方法(特許文献５)等が提案されているが、剥離が不
完全である。
Further, a method of peeling off the phosphor and the like while vibrating the crushed glass in the polishing tank (see Patent Document 3), a brush in the rotating sealed container (see Patent Document 4), or a phosphor by a partition and a scraping plate Although a method of peeling off the above has been proposed (Patent Document 5), etc., peeling is incomplete.
また、湿式法においては、酸などの薬液によりガラスを洗浄して水銀等を回収する方法
(特許文献６、特許文献７参照など)がある。
Also, in the wet method, a method of recovering mercury etc. by washing glass with chemicals such as acid
(See Patent Document 6 and Patent Document 7).
一方、近年、急増しているコンパクト形や電球形蛍光ランプは、形状の種類が極めて多く自動処理ができないため、口金切断機への装着を１つずつ手で行っているのが現状である。また、切断後の開口部が１カ所のため、エアブローによる蛍光体・水銀の回収もできない。 On the other hand, in recent years, compact types and light bulb-type fluorescent lamps, which have been rapidly increasing, have a very large variety of shapes and cannot be automatically processed. Moreover, since there is one opening after cutting, the phosphor and mercury cannot be recovered by air blow.
本発明者らは、先願において特願２００７−２４３５６２（廃蛍光ランプの選択破砕方法及び装置）において、ガラス部を選択破砕し、口金部と分離する技術を提案している。この方法でガラス部が選択的に破砕されても、現在提案されている乾式法による破壊ガラスからの蛍光体回収では、蛍光体の回収率が不完全となる。 In the previous application, the present inventors have proposed a technique of selectively crushing a glass part and separating it from a base part in Japanese Patent Application No. 2007-243562 (selective crushing method and apparatus for waste fluorescent lamp). Even if the glass portion is selectively crushed by this method, the phosphor recovery rate from the broken glass by the dry method currently proposed is incomplete.
一方、湿式法では高い蛍光体の回収率を達成し得るが、薬液を使用したり、温度を調整したりなどが必要となる。 On the other hand, the wet method can achieve a high phosphor recovery rate, but it requires the use of a chemical solution and the adjustment of the temperature.
上記のとおり、破砕ガラスから水銀や蛍光体を回収する方法はいくつかの方法が提案されている。しかし、従来の方法では、それぞれ一長一短があり、目的に応じた組み合わせが必要である。 As described above, several methods have been proposed for recovering mercury and phosphors from crushed glass. However, each of the conventional methods has advantages and disadvantages, and a combination according to the purpose is necessary.
本発明では、蛍光体等のガラス付着成分を迅速かつ高収率に回収するとともに、ガラスの表面の洗浄を促進させる廃蛍光ランプのリサイクル方法及び装置を提供することを目的とする。 An object of the present invention is to provide a recycling method and apparatus for a waste fluorescent lamp that recovers glass adhering components such as phosphors quickly and with high yield and promotes cleaning of the glass surface .
本発明（請求項１に係る発明）は、上記目的を達成するために、
付着成分が付着した廃蛍光ランプの破砕産物である破砕ガラス片に対し、水中で超音波を照射して、該破砕ガラス片から前記付着成分を剥離させ、その後、水簸機構における水の上昇流により、該破砕ガラス片からの付着成分の剥離物を水中において浮上させ、該剥離物と該破砕ガラスとの分離を達成する廃蛍光ランプのリサイクル方法であって、
前記破砕ガラス片から剥離した前記剥離物と該破砕ガラス片とを、前記超音波照射領域における水中での剥離状態を維持しつつ、該超音波照射領域における水中から直接に、前記水簸機構の上昇流領域に移行させる構成としてある。この請求項１の好ましい態様としては、請求項２，３の記載のとおりである。
In order to achieve the above object, the present invention (the invention according to claim 1)
The crushed glass piece, which is a crushed product of the waste fluorescent lamp to which the adhering component has adhered, is irradiated with ultrasonic waves in water to separate the adhering component from the crushed glass piece, and then the upward flow of water in the water tank mechanism more, the peeling of deposited components from the crushed glass fragments is floated in water, a waste fluorescent lamp recycling method to achieve separation between the release material and the crushed glass,
While maintaining the peeled state in water in the ultrasonic irradiation region, the peeled material peeled off from the shattered glass piece and the water tank mechanism directly from the water in the ultrasonic irradiation region. It is configured to shift to the upflow region. Preferred embodiments of claim 1 are as described in claims 2 and 3.
本発明（請求項４に係る発明）は、上記目的を達成するために、
付着成分が付着した廃蛍光ランプの破砕産物である破砕ガラス片に対し、水中で超音波を照射して、該破砕ガラス片から前記付着成分を剥離させ、その後、水簸機構における水の上昇流により、該破砕ガラス片からの付着成分の剥離物を水中において浮上させ、該剥離物と該破砕ガラスとの分離を達成する廃蛍光ランプのリサイクル装置であって、
横方向に延ばされて、一端が前記破砕ガラス片を投入するための入口とされ他端が該破砕ガラス片を排出するための出口とされる第１管路と、該第１管路に該第１管路の延び方向の途中において接続されて鉛直上方に延びる第２管路と、が備えられ、
前記第１管路内下部のうち、前記第２管路の下端開口が臨む領域から、水を上方に向けて供給し続けて、該第１管路内を水で充満させると共に、前記第２管路内に前記水簸機構の上昇流を形成する水供給管が設けられ、
前記第１管路に、前記第２管路よりも該第１管路の入口側において、超音波を発振する超音波発振素子が設けられている構成としてある。この請求項４の好ましい態様としては、請求項５以下の記載のとおりである。
In order to achieve the above object , the present invention ( invention according to claim 4)
The crushed glass piece, which is a crushed product of the waste fluorescent lamp to which the adhering component has adhered, is irradiated with ultrasonic waves in water to separate the adhering component from the crushed glass piece, and then the upward flow of water in the water tank mechanism more, the peeling of deposited components from the crushed glass fragments is floated in water, a recycling unit of the waste fluorescent lamp to achieve separation between the release material and the crushed glass,
A first pipe extending in the lateral direction, one end of which is an inlet for introducing the crushed glass pieces and the other end of which is an outlet for discharging the crushed glass pieces; and A second pipe connected in the middle of the extending direction of the first pipe and extending vertically upward,
Of the lower part in the first pipe line, water is continuously supplied upward from the region where the lower end opening of the second pipe line faces to fill the first pipe line with water, and the second A water supply pipe that forms the upward flow of the water tank mechanism is provided in the pipeline,
An ultrasonic oscillation element that oscillates an ultrasonic wave is provided in the first pipeline closer to the inlet side of the first pipeline than the second pipeline. The preferred embodiment of claim 4 is as described in claim 5 and below.
本発明による効果は、次のとおりである。水で満たされたカラム内で超音波を照射するとともに、下方から水の上昇流を付与する水簸機能(ガラス片の大きさに応じ、例えば流速0.08〜0.24m/s)を付加することにより、蛍光体等のガラス付着成分を迅速かつ高収率に回収することができる。
また、破壊ガラスからの蛍光体・水銀の回収方法については、廃水処理が不要であることから簡便性という点では乾式法が有利であるが、粉体の制御のしやすさ蛍光体等の回収の精度では湿式法が有利である。
The effects of the present invention are as follows. By irradiating ultrasonic waves in a column filled with water and adding a water tank function that gives an upward flow of water from below (depending on the size of the glass piece, for example, a flow rate of 0.08 to 0.24 m / s) In addition, glass adhering components such as phosphors can be recovered quickly and with high yield.
As for the method of recovering phosphors and mercury from broken glass, the dry method is advantageous because it does not require wastewater treatment, but it is easy to control the powder. In terms of accuracy, the wet method is advantageous.
本発明では湿式法において、水で満たされたカラム内で超音波を照射するとともに、下方から水の上昇流を付与する水簸機能(ガラス片の大きさに応じ、例えば流速0.08〜0.24m/s)を付加することにより、超音波によるガラス−蛍光体等剥離後、水簸（すいひ）の水流により剥離の促進、蛍光体のガラスへ再付着を防止、ガラスの洗浄効果を実現するものである。 In the present invention, in the wet method, while irradiating ultrasonic waves in a column filled with water, a water tank function that gives an upward flow of water from below (depending on the size of the glass piece, for example, a flow rate of 0.08 to 0.24 m / By adding s), after the glass-phosphor etc. is peeled off by ultrasonic waves, the water flow of the water tank facilitates the peeling, prevents the phosphor from reattaching to the glass, and realizes the glass cleaning effect It is.
単に超音波を照射する方法は既に提案されている(特願2006-205138参照)が、水簸機能追加による相乗効果により、蛍光体剥離促進、蛍光体再付着防止、ガラス洗浄が短時間に達成され、ガラスからの蛍光粉等の剥離はもとより、ガラスと蛍光粉等の分離、ガラスの洗浄を、連続的かつ5〜15分の洗浄層滞留時間で達成することが可能であり、装置のコンパクト化などが可能となる。 A method of simply irradiating with ultrasonic waves has already been proposed (see Japanese Patent Application No. 2006-205138), but due to the synergistic effect of adding the water tank function, phosphor peeling promotion, phosphor reattachment prevention, and glass cleaning can be achieved in a short time. It is possible to achieve separation of glass and fluorescent powder and glass cleaning as well as separation of fluorescent powder from glass, and continuous cleaning with a cleaning layer residence time of 5 to 15 minutes. It becomes possible.
本発明に係る廃蛍光ランプの蛍光体又は水銀の分離回収方法及び装置を実施するための
最良の形態を実施例に基づいて図面を参照して、以下に説明する。
The best mode for carrying out the method for separating and recovering phosphor or mercury of a waste fluorescent lamp according to the present invention will be described below with reference to the drawings based on the embodiments.
（実施例）
本発明の蛍光体又は水銀の分離回収装置１は、図１に示すように、入口から出口に向かって下方に傾斜する第１管路としての傾斜管路２と、傾斜管路２の途中である分岐部３から上方に連通起立した第２管路としての垂直管路４とを備え、その全体形状は、略逆Ｔ字型をしている。
(Example)
As shown in FIG. 1, the phosphor / mercury separation / recovery device 1 of the present invention includes an inclined pipe 2 as a first pipe inclined downward from an inlet toward an outlet, and a middle of the inclined pipe 2. A vertical pipe 4 as a second pipe standing upright from a certain branching section 3 is provided, and the entire shape thereof is substantially inverted T-shaped.
分岐部３及び垂直管路４は、後記する上昇水流で、廃蛍光ランプの破砕物である破砕ガラス片５（図１中の「蛍光付着ガラス」）を水中内であおり上げて、破砕ガラス片５から蛍光体６（図１中の「蛍光粉」）や水銀を剥離する水簸機構７を構成する。垂直管路４の上端部には、水が流れ出る溢流孔８が形成されている。 The branch part 3 and the vertical pipe line 4 are ascending water flow described later, and a crushed glass piece 5 ("fluorescent-attached glass" in FIG. 1), which is a crushed product of a waste fluorescent lamp, is lifted in water to give a crushed glass piece 5 to 5 constitute a water tank mechanism 7 for peeling the phosphor 6 ("fluorescent powder" in FIG. 1) and mercury. An overflow hole 8 through which water flows is formed at the upper end of the vertical pipe 4.
傾斜管路２の入口９側である上流部の下面（傾斜路面）には、超音波発振子１０が設けられており、上流部内は、洗浄槽として機能する。入口９側上流部の下流側に隣接し、傾斜管路２内の底部であって、垂直管路４の直下の分岐部３の位置に、水供給管１１が配設されている。 An ultrasonic oscillator 10 is provided on the lower surface (inclined road surface) of the upstream portion on the inlet 9 side of the inclined pipeline 2, and the inside of the upstream portion functions as a cleaning tank. A water supply pipe 11 is disposed adjacent to the downstream side of the upstream part on the inlet 9 side and at the position of the branch part 3 directly below the vertical pipe line 4 in the inclined pipe line 2.
以上の構成から成る分離回収装置１を利用して、廃蛍光ランプの破砕物に付着した蛍光体６又は水銀を分離回収する方法は次のとおりである。 A method for separating and collecting the phosphor 6 or mercury adhering to the crushed material of the waste fluorescent lamp using the separation and recovery apparatus 1 having the above configuration is as follows.
水供給管１１から水を分離回収装置１内に供給を開始すると、傾斜管路２内に水が充満するとともに、垂直管路４内では、上昇水流が形成される。そして、超音波発振子１０の動作を開始すると、入口９側上流部内の水中内で超音波振動が生じる。 When the supply of water from the water supply pipe 11 into the separation / recovery device 1 is started, the inclined pipe 2 is filled with water and an ascending water flow is formed in the vertical pipe 4. When the operation of the ultrasonic oscillator 10 is started, ultrasonic vibration is generated in the water in the upstream portion on the inlet 9 side.
今、廃蛍光ランプを破砕機で破砕して得られる破砕産物を傾斜管路２の入口９から供給する。この実施例では、破砕産物として、未だ蛍光体６（水銀でもよいが、ここでは蛍光体６が付着した場合で説明する。）等が付着した廃蛍光ランプの破砕された破砕ガラス片５を、傾斜管路２の入口９から供給する。 Now, the crushed product obtained by crushing the waste fluorescent lamp with a crusher is supplied from the inlet 9 of the inclined pipe line 2. In this embodiment, the crushed crushed glass piece 5 of the waste fluorescent lamp to which the phosphor 6 (which may be mercury, but will be described here in the case where the phosphor 6 is attached) etc. is attached as the crushed product, Supply from the inlet 9 of the inclined pipe 2.
すると、破砕ガラス片５は、入口９側上流部内で超音波振動が付与され（水という媒体を介して超音波振動が付与され）、水による洗浄作用に加え、破砕ガラス片５に作用する超音波振動によって、破砕ガラス片５を洗浄するとともに、蛍光体６は破砕ガラス片５表面から剥離し、蛍光体６の分離を行う。 Then, the crushed glass piece 5 is imparted with ultrasonic vibration in the upstream portion on the inlet 9 side (ultrasonic vibration is imparted through a medium called water), and in addition to the cleaning action with water, the crushed glass piece 5 While the crushed glass piece 5 is washed by the sonic vibration, the phosphor 6 is peeled off from the surface of the crushed glass piece 5 and the phosphor 6 is separated.
このようにして蛍光体６が分離された破砕ガラス片５及び分離された蛍光体６は、分岐部３に送られる。この分岐部３において、水簸機構７による水供給管１１から供給される上昇水流の作用を受け、さらに、破砕ガラス片５表面から蛍光体６の剥離はより促進される。そして、破砕ガラス片５の多くは、分岐部３から傾斜管路２の下流に流れ、その出口１２から排出される。 The crushed glass piece 5 from which the phosphor 6 has been separated in this way and the separated phosphor 6 are sent to the branching section 3. In this branch part 3, the action of the rising water flow supplied from the water supply pipe 11 by the water tank mechanism 7 is received, and further, the peeling of the phosphor 6 from the surface of the crushed glass piece 5 is further promoted. Then, most of the crushed glass pieces 5 flow from the branch portion 3 to the downstream side of the inclined pipeline 2 and are discharged from the outlet 12 thereof.
しかし、細かい破砕ガラス片５及び分離された蛍光体６は、水簸機構７において、水供給管１１から供給される上昇水流の作用を受けあおり上げられ浮上する。この過程でも、細かい破砕ガラス片５表面から蛍光体６の剥離がより促進される。 However, the fine crushed glass pieces 5 and the separated phosphors 6 are lifted and floated in the water tank mechanism 7 under the action of the rising water flow supplied from the water supply pipe 11. Even in this process, the peeling of the phosphor 6 from the surface of the fine crushed glass piece 5 is further promoted.
そして、分離された蛍光体６は、水簸機構７において、上昇水流によって垂直管路４内をさらに浮上し、溢流孔８から溢流とともに排出される。垂直管路４内で蛍光体６が分離された細かい破砕ガラス片５は、その重量により垂直管路４内を沈下し、傾斜管路２の下流に流れ、その出口１２から排出される。 The separated phosphor 6 further floats in the vertical pipe 4 by the rising water flow in the water tank mechanism 7 and is discharged from the overflow hole 8 together with the overflow. The fine crushed glass piece 5 from which the phosphor 6 is separated in the vertical pipe 4 sinks in the vertical pipe 4 due to its weight, flows downstream of the inclined pipe 2, and is discharged from the outlet 12.
このようにして、廃蛍光ランプの破砕ガラス片５に付着した蛍光体６を、効果的に分離して取り出すことができる。そして、分離して得られた蛍光体６及び洗浄ガラス片１３は、それぞれリサイクル使用に供することができる。 In this way, the phosphor 6 attached to the crushed glass piece 5 of the waste fluorescent lamp can be effectively separated and taken out. And the fluorescent substance 6 and the washing | cleaning glass piece 13 obtained by isolate | separating can each be used for recycle use.
なお、本発明で処理する破砕ガラス片５を得るための廃蛍光ランプの破砕機としては、特願２００７−２４３５６２（廃蛍光ランプの選択破砕方法及び装置）で本発明者らがすでに提案している廃蛍光ランプの破砕機を使用してもよい。 In addition, as a crusher of the waste fluorescent lamp for obtaining the crushing glass piece 5 processed by this invention, the present inventors have already proposed by Japanese Patent Application No. 2007-243562 (selective crushing method and apparatus of a waste fluorescent lamp). A waste fluorescent lamp crusher may be used.
以上、本発明に係る廃蛍光ランプのリサイクル方法及び装置の最良の形態を実施例に基づいて説明したが、本発明はこのような実施例に限定されることなく、特許請求の範囲記載の技術的事項の範囲内で、いろいろな実施例があることは言うまでもない。 As mentioned above, although the best form of the recycling method and apparatus of the waste fluorescent lamp concerning this invention was demonstrated based on the Example, this invention is not limited to such an Example, The technique as described in a claim It goes without saying that there are various embodiments within the scope of the subject matter.
本発明は、以上のような構成であるから、蛍光体や水銀等が付着した廃蛍光ランプ等の
ガラスのリサイクル技術分野におけるリサイクルプラントに最適である。
Since the present invention is configured as described above, the present invention is most suitable for a recycling plant in the field of glass recycling technology such as a waste fluorescent lamp to which phosphors, mercury, and the like are attached.
１ 分離回収装置
２ 傾斜管路（第１管路）
３ 分岐部
４ 垂直管路（第２管路）
５ 破砕ガラス片（蛍光付着ガラス）
６ 蛍光体（蛍光粉）
７ 水簸機構
８ 溢流孔
９ 傾斜管路の入口
１０ 超音波発振子
１１ 水供給管
１２ 傾斜管路の出口
１３ 洗浄ガラス片
1 Separation and recovery device 2 Inclined pipeline (first pipeline)
3 Branch 4 Vertical pipe (second pipe)
5 Shattered glass pieces (fluorescent glass)
6 phosphor (fluorescent powder)
7 Water tank mechanism 8 Overflow hole 9 Inlet of inclined pipe 10 Ultrasonic oscillator 11 Water supply pipe 12 Outlet of inclined pipe 13 Washing glass piece
Claims (6)
前記破砕ガラス片から剥離した前記剥離物と該破砕ガラス片とを、前記超音波照射領域における水中での剥離状態を維持しつつ、該超音波照射領域における水中から直接に、前記水簸機構の上昇流領域に移行させる、
ことを特徴とする廃蛍光ランプのリサイクル方法。 The crushed glass piece, which is a crushed product of the waste fluorescent lamp to which the adhering component has adhered, is irradiated with ultrasonic waves in water to separate the adhering component from the crushed glass piece, and then the upward flow of water in the water tank mechanism more, the peeling of deposited components from the crushed glass fragments is floated in water, a waste fluorescent lamp recycling method to achieve separation between the release material and the crushed glass,
While maintaining the peeled state in water in the ultrasonic irradiation region, the peeled material peeled off from the shattered glass piece and the water tank mechanism directly from the water in the ultrasonic irradiation region. Shift to the upflow region,
A method for recycling a waste fluorescent lamp characterized by the above.
少なくとも前記超音波照射領域において、前記破砕ガラス片の供給側から前記水簸機構の上昇流に近づくに従って下方側に向かうように傾斜されて、該超音波照射領域における水を支える傾斜路面を用意し、
前記傾斜路面側から該傾斜路面上の水に向けて超音波を照射する、
ことを特徴とする廃蛍光ランプのリサイクル方法。 In claim 1,
At least in the ultrasonic irradiation region, an inclined road surface that is inclined toward the lower side as it approaches the upward flow of the water tank mechanism from the supply side of the crushed glass pieces, and prepares an inclined road surface that supports water in the ultrasonic irradiation region. ,
Irradiating ultrasonic waves from the inclined road surface side toward the water on the inclined road surface;
A method for recycling a waste fluorescent lamp characterized by the above .
分離回収装置として、入口から出口に向かうに従って下方側に向かうように傾斜する第１管路と、該第１管路に該第１管路の途中において接続されて鉛直上方に延びる第２管路と、を備えるものを用意し、
前記第１管路の内面下部のうち、前記第２管路の下端開口が臨む領域から水を該第１管路内に供給し続けることにより、該第１管路の入口及び出口から水が溢れ出るようにした状態の下で、該第１管路内を水で充満させると共に、該第２管路内に前記水簸機構の上昇流を形成し、
その上で、前記第１管路の入口から前記破砕ガラス片を投入すると共に、該第１管路内に投入された該破砕ガラス片に対して、該水簸機構の上昇流領域よりも該第１管路の入口側で超音波照射を行って、該破砕ガラス片から前記剥離物を剥離させた状態にしつつ、該剥離物及び該破砕ガラス片を、該第１管路内における前記第２管路の下端開口が臨む領域にまで至らせる、
ことを特徴とする廃蛍光ランプのリサイクル方法。 In claim 1,
As a separation and recovery device, a first pipeline that inclines downward toward the outlet from the inlet, and a second pipeline that is connected to the first pipeline in the middle of the first pipeline and extends vertically upward Prepare a thing with
By continuing to supply water into the first pipeline from a region where the lower end opening of the second pipeline faces in the lower part of the inner surface of the first pipeline, water is supplied from the inlet and the outlet of the first pipeline. Under the condition of overflowing, the inside of the first pipe is filled with water, and an upward flow of the water tank mechanism is formed in the second pipe,
In addition, the crushed glass piece is introduced from the inlet of the first pipeline, and the crushed glass piece introduced into the first pipeline is more than the upflow region of the water tank mechanism. Ultrasonic irradiation is performed on the inlet side of the first pipeline, and the exfoliated material and the crushed glass piece are removed from the crushed glass piece while the exfoliated product and the crushed glass piece are in the first pipeline. To reach the area where the lower end opening of the two pipelines faces,
A method for recycling a waste fluorescent lamp characterized by the above .
横方向に延ばされて、一端が前記破砕ガラス片を投入するための入口とされ他端が該破砕ガラス片を排出するための出口とされる第１管路と、該第１管路に該第１管路の延び方向の途中において接続されて鉛直上方に延びる第２管路と、が備えられ、
前記第１管路内下部のうち、前記第２管路の下端開口が臨む領域から、水を上方に向けて供給し続けて、該第１管路内を水で充満させると共に、前記第２管路内に前記水簸機構の上昇流を形成する水供給管が設けられ、
前記第１管路に、前記第２管路よりも該第１管路の入口側において、超音波を発振する超音波発振素子が設けられている、
ことを特徴とする廃蛍光ランプのリサイクル装置。 The crushed glass piece, which is a crushed product of the waste fluorescent lamp to which the adhering component has adhered, is irradiated with ultrasonic waves in water to separate the adhering component from the crushed glass piece, and then the upward flow of water in the water tank mechanism more, the peeling of deposited components from the crushed glass fragments is floated in water, a recycling unit of the waste fluorescent lamp to achieve separation between the release material and the crushed glass,
A first pipe extending in the lateral direction, one end of which is an inlet for introducing the crushed glass pieces and the other end of which is an outlet for discharging the crushed glass pieces; and A second pipe connected in the middle of the extending direction of the first pipe and extending vertically upward,
Of the lower part in the first pipe line, water is continuously supplied upward from the region where the lower end opening of the second pipe line faces to fill the first pipe line with water, and the second A water supply pipe that forms the upward flow of the water tank mechanism is provided in the pipeline,
The first pipe line is provided with an ultrasonic oscillation element that oscillates ultrasonic waves on the inlet side of the first pipe line than the second pipe line.
An apparatus for recycling waste fluorescent lamps .
前記第１管路が、該第１管路の入口から出口に向かうに従って下方側に向かうように傾斜され、
前記超音波発振素子が前記第１管路の下部外面に設けられている、
ことを特徴とする廃蛍光ランプのリサイクル装置。 In claim 4,
The first pipe is inclined so as to go downward as it goes from the inlet of the first pipe to the outlet;
The ultrasonic oscillation element is provided on a lower outer surface of the first pipe line;
An apparatus for recycling waste fluorescent lamps .
前記水供給管は、該水供給管から前記第１管路内に供給し続けることにより、前記第１管路の入口及び出口から水が溢れ出るようにした状態の下で、該第１管路内を水で充満させると共に、前記第２管路内に前記水簸機構の上昇流を形成するように設定されている、
ことを特徴とする廃蛍光ランプのリサイクル装置。 In claim 5,
The water supply pipe is continuously supplied from the water supply pipe into the first pipe line so that water overflows from the inlet and the outlet of the first pipe. The inside of the road is filled with water, and is set to form an upward flow of the water tank mechanism in the second pipe.
An apparatus for recycling waste fluorescent lamps .
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