CN110517940B - Fluorescent powder recovery device - Google Patents
Fluorescent powder recovery device Download PDFInfo
- Publication number
- CN110517940B CN110517940B CN201910911139.4A CN201910911139A CN110517940B CN 110517940 B CN110517940 B CN 110517940B CN 201910911139 A CN201910911139 A CN 201910911139A CN 110517940 B CN110517940 B CN 110517940B
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- China
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- material channel
- rotating shaft
- cooling water
- spiral blade
- fluorescent powder
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/52—Recovery of material from discharge tubes or lamps
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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
- 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
- Y02W30/82—Recycling of waste of electrical or electronic equipment [WEEE]
Abstract
The invention relates to a fluorescent powder recovery device, and belongs to the technical field of fluorescent powder recovery processing process devices in waste fluorescent lamps. The invention comprises a frame, a shell is fixedly arranged on the frame, a cylindrical material channel is arranged on the shell, one end of the material channel is provided with a feeding hole, the other end of the material channel is provided with a discharging hole, a rotating shaft which is coaxial with the material channel is arranged in the material channel, the rotating shaft is arranged along the length direction of the material channel, a driving device for driving the rotating shaft to rotate is arranged on the rotating shaft in a matching mode, a spiral blade is arranged on the outer surface of the rotating shaft at the position, located in the material channel, of the rotating shaft, striking sheets are arranged on the outer surface of one side, facing the discharging hole, of the spiral blade, the striking sheets are arranged at intervals along the spiral direction of the spiral blade, a dust collection cover is arranged on the feeding hole and the discharging hole respectively, and the dust collection covers are connected to a negative pressure pipeline. The device has the advantages of simple structure, high efficiency, low cost, full-closed negative pressure treatment, no secondary pollution hidden trouble, and the recovery rate of the fluorescent powder can reach more than 99 percent.
Description
Technical Field
The invention relates to a fluorescent powder recovery device, and belongs to the technical field of fluorescent powder recovery processing process devices in waste fluorescent lamps.
Background
The fluorescent lamp utilizes mercury as an active activating component, belongs to HW29 mercury-containing waste in national hazardous waste records, and if the waste fluorescent lamp is improperly treated, the harmful component mercury can enter human bodies through skin, breath or food, thus causing great harm to human health. The main difficulty of the harmless treatment technology of the waste fluorescent lamp is how to efficiently recover mercury-containing fluorescent powder attached to glass, and the current industrial recovery mostly adopts ultrasonic cleaning or wet cleaning recovery technology, but the method has high cost, large waste liquid production amount and secondary pollution hidden trouble.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the fluorescent powder recovery device can solve the problems of high cost, secondary pollution hidden danger and the like of mercury-containing fluorescent powder in the waste fluorescent lamp recovered by the wet method.
In order to solve the technical problems, the invention adopts the technical scheme that: fluorescent powder recovery unit, which comprises a frame, the fixed casing that is provided with in the frame, be provided with the material passageway of cylinder on the casing, the one end of material passageway is provided with the feed inlet, the other end is provided with the discharge gate, install the pivot rather than coaxial setting in the material passageway, the pivot is arranged along the length direction of material passageway, the pivot has set and is used for driving its pivoted drive arrangement, the position that the pivot is located the material passageway is provided with helical blade at the pivot surface, helical blade is provided with towards the surface of discharge gate one side and strikes the piece, strike the piece and arrange along helical direction interval of helical blade, feed inlet and discharge gate have set the dust cage respectively, the dust cage all is connected in negative pressure pipeline.
Further, the method comprises the following steps: the material channel is obliquely arranged, and the feed inlet is positioned at the lower end of the material channel, and the discharge outlet is positioned at the higher end of the material channel.
Further, the method comprises the following steps: along the spiral direction of the spiral blade, the striking sheet is divided into a plurality of sections, and the arrangement structure of each section is that the arrangement interval of the striking sheet is gradually increased in the direction towards the discharge port.
Further, the method comprises the following steps: two ends of the rotating shaft are arranged on the shell through a bearing and a bearing seat.
Further, the method comprises the following steps: the bearing block is provided with a cooling water cavity, the cooling water cavity is connected with a water inlet pipe and a water outlet pipe, the water inlet pipe is connected with a cooling water tank through a water pump, and the water outlet pipe is connected with the cooling water tank.
Further, the method comprises the following steps: the water inlet pipe is connected to the bottom of the cooling water cavity, and the water outlet pipe is connected to the top of the cooling water cavity.
Further, the method comprises the following steps: the inner wall of the material channel is provided with lining strips at intervals along the length direction of the material channel, and the lining strips are arranged on the lower half part of the material channel and are arranged along the circumferential direction of the material channel.
Further, the method comprises the following steps: the device also comprises a control system, the driving device is a motor, and a frequency converter for controlling the rotating speed of the motor is arranged in the control system.
The invention has the beneficial effects that: the fluorescent lamp glass is crushed by the crushing cutter consisting of the helical blades and the striking sheets, and mercury-containing fluorescent powder on the fluorescent lamp glass is removed by utilizing the extrusion friction action among materials and between the materials and the rotating shaft, the crushing cutter and the shell, and the removed mercury-containing fluorescent powder is recovered through the negative pressure pipeline. The device has the advantages of simple structure, high efficiency, low cost, full-closed negative pressure treatment, no secondary pollution hidden trouble, and the recovery rate of the fluorescent powder can reach more than 99 percent.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a partially enlarged schematic view of the crushing cutter of the present invention.
The labels in the figure are: 1-a frame, 2-a shell, 3-a driving device, 4-a rotating shaft, 5-a helical blade, 6-a feeding port, 7-a discharging port, 8-a cooling water tank, 9-a negative pressure pipeline, 10-a striking plate, 11-a water inlet pipe and 12-a water outlet pipe.
Detailed Description
The invention is further explained below with reference to the drawings and examples.
As shown in fig. 1 and 2, the present invention includes a frame 1, a housing 2 is fixedly disposed on the frame 1, a cylindrical material passage is disposed on the housing 2, a material inlet 6 is disposed at one end of the material passage, a material outlet 7 is disposed at the other end of the material passage, a rotating shaft 4 coaxially disposed with the material passage is mounted in the material passage, the rotating shaft 4 is disposed along a length direction of the material passage, a driving device 3 for driving the rotating shaft 4 to rotate is disposed on the rotating shaft 4, a helical blade 5 is disposed on an outer surface of the rotating shaft 4 at a position of the rotating shaft 4 in the material passage, a striking sheet 10 is disposed on an outer surface of the helical blade 5 facing the material outlet 7, the striking sheets 10 are disposed at intervals along a helical direction of the helical blade 5, the material inlet 6 and the material outlet 7 are respectively disposed with dust hoods, and the dust hoods are both connected to a negative pressure pipeline 9. Fluorescent lamp glass is crushed by a crushing cutter consisting of a helical blade 5 and a striking sheet 10, and mercury-containing fluorescent powder on the fluorescent lamp glass is removed by utilizing extrusion friction action among materials and among the materials, a rotating shaft, the crushing cutter and a shell. In the crushing process, a large amount of mercury-containing fluorescent powder dust can be generated, and the feed inlet 6 and the discharge outlet 7 are both connected with the negative pressure pipeline 9, so that the removed mercury-containing fluorescent powder can be recovered through the negative pressure pipeline 9.
The material channel is preferably arranged in an inclined mode, the feed inlet 6 is located at the lower end of the material channel, the discharge outlet 7 is located at the higher end of the material channel, and under the action of gravity, the material tends to slide downwards towards one side of the feed inlet 6, so that the extrusion friction effect is better played, secondary desorption is realized, and the desorption efficiency of the fluorescent powder is ensured.
The preferred arrangement of the striking plate 10 is: along helical direction of helical blade 5, strike piece 10 and divide into a plurality of sections, and the arrangement structure of every section does, strikes piece 10 arrange the interval and gradually increases in the direction towards the discharge gate, adopts this mode of arrangement, can effectively guarantee that the final particle size after the material is broken accords with the design requirement to make the desorption that phosphor powder can be more abundant. In this embodiment, the interval between the striking pieces 10 is gradually increased, and every time the interval is increased by 1mm, after the interval reaches the requirement of the broken particle size of the material, the initial interval is returned, and the interval in the previous stage is repeated to ensure that the particle size of the material is all 3mm-5mm, and when the distance is about 1m from the discharge end, the striking pieces 10 can not be installed. The striking plate 10 can be fixedly connected with the helical blade 5 by welding.
In order to make the rotating structure more reliable, both ends of the rotating shaft 4 are mounted on the housing 2 through bearings and bearing seats. The rotating shaft 4 can generate higher temperature in the material crushing process, and in order to improve the crushing efficiency and prolong the service life of equipment, a cooling water cavity is arranged on the bearing seat, the cooling water cavity is connected with a water inlet pipe 11 and a water outlet pipe 12, the water inlet pipe 11 is connected with a cooling water tank 8 through a water pump, the water outlet pipe 12 is connected with the cooling water tank 8, the bearing is cooled through a cooling water loop of the bearing seat, and circulating water is continuously utilized through natural cooling. In order to improve the cooling effect, the arrangement mode of the cooling water loop is that the water inlet pipe 11 is connected to the bottom of the cooling water cavity, and the water outlet pipe 12 is connected to the top of the cooling water cavity.
The inner wall of the material channel is provided with lining strips at intervals along the length direction of the material channel, and the lining strips are arranged on the lower half part of the material channel and are arranged along the circumferential direction of the material channel. In this embodiment, three semicircular strips are arranged and evenly distributed on the lower semicircular surface of the inner wall of the shell 2. After the lining strips are arranged, a certain storage space can be provided for the materials in the desorption process, and the materials are prevented from being agglomerated.
The invention also comprises a control system, the driving device 3 is a motor, and a frequency converter for controlling the rotating speed of the motor is arranged in the control system. The rotation speed of the rotating shaft 4 can be adjusted according to the productivity and the broken particle size of the fluorescent lamp glass.
The working process of the invention is as follows: firstly, starting a control system, starting a driving device 3 and a cooling device of a rotating shaft 4, and adjusting the rotating speed of the rotating shaft 4 according to the production rate and the crushed particle size of the waste fluorescent lamp; waste fluorescent lamps are fed from a feeding hole 6, after entering the shell 2, the waste fluorescent lamps are crushed by a rotating crushing cutter, and the mercury-containing fluorescent powder on the fluorescent glass is removed by utilizing the extrusion friction action among the fluorescent lamp glass and between the fluorescent lamp glass and the rotating shaft 4, the crushing cutter and the shell 2, the mercury-containing fluorescent powder is recycled through a negative pressure pipeline 9, and the glass is recycled in a ton bag through a discharging hole 7.
Claims (7)
1. Phosphor recovery unit, its characterized in that: comprises a frame (1), a shell (2) is fixedly arranged on the frame (1), a cylindrical material channel is arranged on the shell (2), a feeding hole (6) is arranged at one end of the material channel, the other end of the material channel is provided with a discharge hole (7), a rotating shaft (4) which is coaxial with the material channel is installed in the material channel, the rotating shaft (4) is arranged along the length direction of the material channel, the rotating shaft (4) is provided with a driving device (3) which is used for driving the rotating shaft to rotate, the part, located in the material channel, of the rotating shaft (4) is provided with a spiral blade (5) on the outer surface of the rotating shaft (4), the outer surface of one side, facing the discharge hole (7), of the spiral blade (5) is provided with striking sheets (10), the striking sheets (10) are arranged at intervals along the spiral direction of the spiral blade (5), a dust collection cover is respectively arranged on the feed hole (6) and the discharge hole (7), and the dust collection covers are both connected to a negative pressure pipeline (9); along the spiral direction of the spiral blade (5), the striking sheets (10) are divided into a plurality of sections, and the arrangement structure of each section is that the arrangement distance of the striking sheets (10) is gradually increased in the direction towards the discharge port.
2. The phosphor recovery device of claim 1, wherein: the material channel is obliquely arranged, the feeding port (6) is positioned at the lower end of the material channel, and the discharging port (7) is positioned at the higher end of the material channel.
3. The phosphor recovery device of claim 1, wherein: two ends of the rotating shaft (4) are arranged on the shell (2) through a bearing and a bearing seat.
4. The phosphor recovery device of claim 3, wherein: the bearing seat is provided with a cooling water cavity, the cooling water cavity is connected with a water inlet pipe (11) and a water outlet pipe (12), the water inlet pipe (11) is connected with the cooling water tank (8) through a water pump, and the water outlet pipe (12) is connected with the cooling water tank (8).
5. The phosphor recovery device of claim 4, wherein: the water inlet pipe (11) is connected to the bottom of the cooling water cavity, and the water outlet pipe (12) is connected to the top of the cooling water cavity.
6. The phosphor recovery apparatus of any one of claims 1 to 5, wherein: the inner wall of the material channel is provided with lining strips at intervals along the length direction of the material channel, and the lining strips are arranged on the lower half part of the material channel and are arranged along the circumferential direction of the material channel.
7. The phosphor recovery apparatus of any one of claims 1 to 5, wherein: the device is characterized by further comprising a control system, the driving device (3) is a motor, and a frequency converter for controlling the rotating speed of the motor is arranged in the control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910911139.4A CN110517940B (en) | 2019-09-25 | 2019-09-25 | Fluorescent powder recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910911139.4A CN110517940B (en) | 2019-09-25 | 2019-09-25 | Fluorescent powder recovery device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110517940A CN110517940A (en) | 2019-11-29 |
| CN110517940B true CN110517940B (en) | 2021-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910911139.4A Active CN110517940B (en) | 2019-09-25 | 2019-09-25 | Fluorescent powder recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110517940B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5890940A (en) * | 1996-01-19 | 1999-04-06 | Rozema, Jr.; Gerald | Lamp recycling apparatus and method for doing the same |
| CN102145344A (en) * | 2011-04-01 | 2011-08-10 | 荆州市大明灯业有限公司 | Recycling and processing equipment of waste and old fluorescent lamp |
| CN202410749U (en) * | 2011-12-27 | 2012-09-05 | 现代农装科技股份有限公司 | Machine for crushing and separating mercury-containing light sources |
| CN108288577A (en) * | 2017-08-08 | 2018-07-17 | 兰州大学 | A kind of fluorescent tube recovery method and its equipment |
-
2019
- 2019-09-25 CN CN201910911139.4A patent/CN110517940B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5890940A (en) * | 1996-01-19 | 1999-04-06 | Rozema, Jr.; Gerald | Lamp recycling apparatus and method for doing the same |
| CN102145344A (en) * | 2011-04-01 | 2011-08-10 | 荆州市大明灯业有限公司 | Recycling and processing equipment of waste and old fluorescent lamp |
| CN202410749U (en) * | 2011-12-27 | 2012-09-05 | 现代农装科技股份有限公司 | Machine for crushing and separating mercury-containing light sources |
| CN108288577A (en) * | 2017-08-08 | 2018-07-17 | 兰州大学 | A kind of fluorescent tube recovery method and its equipment |
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| Publication number | Publication date |
|---|---|
| CN110517940A (en) | 2019-11-29 |
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