Apparatus for recycling OLED materials

Abstract

The utility model discloses a kind of recovery OLED material equipment, including closed operating cabin, material collector and dry ice injection device, closed operating cabin is equipped with closed glove port, its side is equipped with hatch, the filter chamber of material collector is equipped with high-efficiency filter and negative pressure suction device, negative pressure suction device is connected with high-efficiency filter outlet, the inlet of filter chamber is formed with the lower end outlet of closed operating cabin by connecting pipeline and detachable fixed connection;The top of closed operating cabin is equipped with air inlet, the lower portion of material collector is also equipped with material collection position, material collection position is set below high-efficiency filter;Dry ice injection device includes dry ice injection gun, dry ice storage and delivery pipeline, dry ice injection gun is connected with dry ice storage by delivery pipeline, dry ice injection gun is placed in closed operating cabin.The utility model provides recovery OLED material equipment, can be well controlled dust leakage and safety, more convenient material cleaning and collection, and will not cause harm to personnel.

Description

Technical Field

[0001] This utility model relates to the field of material recycling technology, and more specifically, to a device for recycling OLED materials, used in material recycling and reuse scenarios. Background Technology

[0002] Current dry ice cleaning equipment includes a dry ice generator, a material collector, and a transparent or semi-transparent enclosed cleaning chamber. It achieves the cleaning and recycling of baffles used in OLED evaporation through dry ice spraying, negative pressure drainage, pure water cleaning, air knife drying, infrared heating, and sandblasting. However, it suffers from the following problems:

[0003] (1) The original organic material recycling method has poor sealing. The OLED material particles are very fine. During the recycling process, dust is released into the working environment. On the one hand, the dust in the working environment will cause personal injury to the workers and lead to diseases such as pneumoconiosis. On the other hand, the OLED material settles on the equipment surface and ground in the environment, which greatly increases the cleaning time of the workers. Furthermore, the large amount of dust in the working environment poses a safety hazard and is prone to dust explosion accidents.

[0004] (2) The original material collection method was a cyclone separator with a barrel filter and poor sealing of the exhaust fan. As a result, the material was carried out by the cooling fan at the tail of the exhaust fan after passing through the cyclone separator and barrel filter, and was dispersed into the external working environment. This caused the workers to be exposed to an environment full of OLED materials. Because the material is very fine, it is difficult to protect against it. Clothes, hair and other body parts are easily contaminated, which harms the physical and mental health of the workers.

[0005] (3) The original recycling pipeline was in the form of a corrugated pipe. OLED materials tend to accumulate in the corrugated pipe, resulting in a reduction in the amount of material during recycling. At the same time, the carbon dioxide gas released after the dry ice evaporates poses a risk of leakage and causes personal injury. There is no explosion-proof gas detector to monitor the gas composition of the environment at all times.

[0006] (4) The original material collection method was to collect materials centrally at the bottom. When the material was full, there was no on-site display, making it impossible to judge the collection status of the material. In addition, when disassembling the bottom material collection bin, it was easy to bump the head, causing personnel injury and material overturning.

[0007] (5) The original organic material recycling method is slow to collect materials. The materials accumulate in the glove box and are scattered in the glove box. It is not easy to collect them in the collection hopper. The operators need to wait for about 30-40 minutes for the materials to settle down. The operators then use scrapers to scrape the materials multiple times to collect them. The recycling time is greatly increased. It takes about 2 hours to collect the materials. The operators' work efficiency is slow.

[0008] (6) When using the original organic material recycling equipment, 2-3 people are needed to carry out the operation process such as opening the hatch and placing the liner. Cleaning the equipment and cleaning the working environment takes about 4 days, which is a waste of manpower. Utility Model Content

[0009] To address the environmental pollution, dust explosions, pneumoconiosis, and material collection issues caused by dust leakage or dispersion, this invention provides a device for recycling OLED materials. This device effectively controls dust leakage and ensures safety, while also facilitating material cleaning and collection.

[0010] The technical solution adopted is as follows:

[0011] An OLED material recycling device includes a sealed operating chamber, a material collector, and a dry ice blasting device. The sealed operating chamber has a sealed glove opening and a side door. The material collector has a filter chamber containing a high-efficiency filter and a negative pressure suction device. The negative pressure suction device is connected to the outlet of the high-efficiency filter. The inlet of the filter chamber is detachably and fixedly connected to the lower outlet of the sealed operating chamber via a connecting pipe. The top of the sealed operating chamber has an air inlet, and the lower part of the material collector has a material collection compartment located below the high-efficiency filter. The dry ice blasting device includes a dry ice blasting gun, a dry ice storage device, and a delivery pipe. The dry ice blasting gun is connected to the dry ice storage device via the delivery pipe and is placed inside the sealed operating chamber.

[0012] Preferably, the hatch is a hydraulically assisted hatch, which includes a gas spring assist rod and a feed door plate disposed at the feed inlets on both sides of the sealed operating chamber. One end of the feed door plate is rotatably hinged to the sealed operating chamber, and the gas spring assist rod is disposed on both sides of the feed door plate. One end of the gas spring assist rod is hinged to the feed door plate, and the other end is hinged to the sealed operating chamber. An embedded seal is provided between the feed door plate and the outer edge of the feed inlet.

[0013] The glove opening is preferably a double-sealed glove opening, which includes an embedded seal, an inner silicone glove, and an outer butyl rubber glove.

[0014] More preferably, a door position sensor is also provided at the door of the sealed operating chamber, and a gas detector for continuous monitoring of ambient gas is installed at the bottom of the sealed operating chamber.

[0015] Furthermore, pressure sensors are installed on the top of the sealed operating chamber and at the inlet of the material collector, respectively, and a differential pressure sensor is installed on the connecting pipeline. The pressure sensors and differential pressure sensors are linked to the negative pressure suction device for control.

[0016] Furthermore, a HEPA filter and an airflow regulating valve are also provided at the air inlet on the top of the sealed operating chamber.

[0017] Furthermore, the sealed operating cabin is equipped with an explosion-proof lighting system, which includes a ring-shaped distribution of explosion-proof LED light strips.

[0018] Preferably, the dry ice spray gun is mounted inside the sealed operating chamber via a universal joint, and its spray pressure range is 0.3-0.8 MPa.

[0019] Preferably, the bottom of the sealed operating chamber is shaped like an inverted pyramid.

[0020] Furthermore, the conveying pipeline is wrapped with a constant temperature insulation layer.

[0021] The technical solution of this utility model has the following advantages:

[0022] A. This utility model combines a sealed operating chamber with a sealed glove opening, a material collector, and a dry ice spraying device. The material is cleaned inside the glove box using a dry ice spray gun, and the OLED material is collected and reused by the material collector. Compared with traditional material recycling methods, this method saves manpower and time, and also protects the physical and mental health of the material recycling personnel, avoiding the harm caused by inhaling dust.

[0023] B. This utility model is equipped with a gas detector for detecting the environment and a detector for detecting the collection status, avoiding material blockage and cleaning. The embedded seal used makes the door seal more tight, increasing the guarantee of the overall equipment's airtightness.

[0024] C. This utility model equipment is modularly designed, making it more convenient and efficient for transfer, reversal, disassembly, maintenance, and cleaning. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of this utility model, the drawings used in the specific embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a three-dimensional schematic diagram of the overall structure provided by this utility model;

[0027] Figure 2 yes Figure 1 The main view shown;

[0028] Figure 3 yes Figure 1 The diagram shows the hatch.

[0029] The markings in the image are as follows:

[0030] 1-Sealed operating cabin

[0031] 11-Glove opening

[0032] 12-Hatch

[0033] 121-Gas spring booster rod, 122-Feed gate panel, 123-Embedded seal

[0034] 124-Quick Opening Handle

[0035] 13-Air Inlet

[0036] 2-Material Collector

[0037] 21-Filter chamber, 22-Material collection compartment

[0038] 3-Dry ice spraying device

[0039] 4-Connecting Pipes

[0040] 5-Gas Detector

[0041] 6-Pressure sensor; 7-Differential pressure sensor; 8-Explosion-proof lighting system; 9-Control device; 10-Viewing window a-Inlet, b-Exhaust port. Detailed Implementation

[0042] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0043] like Figure 1 and Figure 2As shown, this utility model provides an OLED material recycling device, including a sealed operating chamber 1, a material collector 2, a dry ice blasting device 3, and a control device 4. The control device is installed on the material collector 2. The sealed operating chamber 1 has a sealed glove opening 11 and a door 12 on its side. The filter chamber 21 of the material collector 2 is equipped with a high-efficiency filter and a negative pressure suction device, for example, three or more high-efficiency filters are installed in the filter chamber. The negative pressure suction device is connected to the outlet of the high-efficiency filter (not shown in the figure). The inlet of the filter chamber 21 is detachably and fixedly connected to the lower outlet of the sealed operating chamber 1 through a connecting pipe 4. The control device controls the negative pressure suction device. The exhaust gas is drawn out from the exhaust port b on the upper side of the material collector 1. The top of the sealed operating chamber 1 is equipped with an air inlet 13, and the lower part of the material collector 2 is equipped with a material collection compartment 22 for collecting the material inside the material collector 2. The material collection compartment 22 is located below the high-efficiency filter, and the filtered material is placed in the material collection compartment 22. The dry ice blasting device 3 includes a dry ice blasting gun, a dry ice storage container, and a delivery pipe. The operating temperature is maintained at -78℃. The dry ice blasting gun is connected to the dry ice storage container through the delivery pipe and is placed inside the sealed operating chamber 1. Preferably, the delivery pipe is covered with a constant temperature insulation layer to prevent premature sublimation of the dry ice. The dry ice blasting device 3 can be a commercially available product; its structure and principle will not be described here.

[0044] The dry ice spray gun is connected via a universal joint, supports multi-angle adjustment, and has a spray pressure range of 0.3-0.8MPa.

[0045] like Figure 1 and Figure 3 As shown, the hatch 12 is preferably a hydraulically assisted hatch, which includes a gas spring assist rod 121 and a feed door plate 122 located at the feed inlets a on both sides of the sealed operating chamber 1. One end of the feed door plate 122 is rotatably hinged to the sealed operating chamber 1, and gas spring assist rods 121 are respectively provided on both sides of it. One end of the gas spring assist rod 121 is hinged to the feed door plate 122, and the other end is hinged to the sealed operating chamber 1. An embedded seal 123 is provided between the feed door plate 122 and the outer edge of the feed inlet a. The hatch 12 of the sealed operating chamber 1 is opened by a gas spring assist rod (or a hydraulic assist rod) and is equipped with an embedded fluororubber sealing ring with a leakage rate ≤0.05 vol% / h. The gas spring assist rod 121 can help users to easily put in and take out workpieces. Of course, a quick-opening handle 124 can also be installed at the lower edge of the feed door panel. After the feed door panel 122 is closed, the quick-opening handle 124 can be used to further press the feed door panel 122 and the sealed operating chamber 1 together. Since the quick-opening handle 124 is a general-purpose part, it will not be described in detail here.

[0046] As a further preferred embodiment of this utility model, the glove opening 11 is a double-layer sealed glove opening, which includes an embedded seal, an inner silicone glove, and an outer butyl rubber glove. The embedded seal and the double-layer inner and outer double-turned sealed glove opening ensure the overall airtightness of the equipment, preventing dust leakage and dust adsorption on the door and inner glove opening walls.

[0047] Meanwhile, a door position sensor is also installed at the door 12 on the sealed operating chamber 1. A gas detector 5 for continuous monitoring of ambient gas is installed at the bottom of the sealed operating chamber 1. The gas detector 5 is preferably a multi-parameter gas detector used to monitor CO2, O2, and VOCs (volatile organic compounds) in the environment. The gas detector 5 is connected to the control device and adopts data linkage control to automatically adjust the suction rate of the negative pressure suction device according to the environmental parameters.

[0048] To better monitor the operation of the OLED material recycling equipment, pressure sensors 6 are installed at the top of the sealed operating chamber 1 and at the inlet of the material collector 2, respectively. A differential pressure sensor 7 is installed on the connecting pipeline 4. The pressure sensors 6 and differential pressure sensors 7 are linked to the negative pressure suction device for control. By setting up gas detectors, pressure sensors, and differential pressure sensors, personnel safety can be ensured.

[0049] As a further preferred embodiment of this utility model, a HEPA filter and an air volume regulating valve are also provided at the air inlet 13 at the top of the sealed operating chamber 1, which ensures the pressure difference between the inside and outside of the sealed operating chamber 1 while the collector is drawing air, and ensures that the incoming gas is clean and unpolluted.

[0050] In addition, an explosion-proof lighting system 8 is installed inside the sealed operating compartment 1, which includes a ring-shaped distribution of explosion-proof LED light strips. The interior lighting uses explosion-proof light sources, ensuring safety while facilitating the collection of materials inside the compartment.

[0051] This utility model equipment is applicable to the recycling of materials from various components such as inner lining plates and vapor deposition baffles during the manufacturing process of OLED displays.

[0052] The left-right layout of the device can be adjusted according to the actual usage scenario, and the material collector and the sealed operating chamber can be interchanged.

[0053] The specific steps are as follows:

[0054] 1) Place the inner liner plate with OLED material on its surface into the glove box through the double feed ports, and close the hydraulically assisted door;

[0055] (2) Enter through the double-gloved opening and operate the dry ice spray gun to peel off the material;

[0056] (3) The material is transported to the material collection bin by negative pressure suction;

[0057] (4) When the pressure sensor detects the completion signal of collection, the material in the material collection bin is removed.

[0058] This invention uses a dry ice spray gun operated through a glove opening to blow OLED material off the inner lining plate. The material is then extracted by a material collector and enters the material collection chamber at the bottom. The pressure data on the display screen indicates the material collection status. When the material collection chamber is full, the door of the material collection chamber is opened to collect and bag the material, completing the entire material recycling process.

[0059] The actual results achieved are as follows:

[0060] Using existing equipment, it takes 5-6 hours to process 20 panels per vehicle, involving manual scraping, collection, washing, and drying, while also generating dust and cleaning fluid that can harm the human body.

[0061] Using this utility model equipment, under the same conditions, 20 plates can be processed in just 2-4 hours, and there is no contact with dust during the processing. Because the equipment itself has sufficient protection mechanisms, personal safety is guaranteed.

[0062] This utility model adopts a 316L stainless steel sealed operating chamber + hydraulically assisted door: when the plate with OLED material is placed in the sealed operating chamber, it is more convenient and labor-saving to open and close the door. Moreover, the embedded seal makes the door more airtight, which increases the guarantee of the overall equipment's airtightness.

[0063] After the purging process in the sealed operating chamber is completed, when the inner liner is removed, the dust in the sealed operating chamber will be completely removed in 30-60 seconds with the help of the material collector. When the chamber door is opened, no dust will escape, ensuring the cleanliness of the environment and the physical and mental health of the personnel. At the same time, the airflow direction of the entire equipment is fixed from top to bottom, and the dust will not be scattered in the chamber for a long time due to the turbulence of the airflow inside the chamber and will not fall into the material collector.

[0064] In terms of intelligent monitoring, the pressure sensor built into the sealed operating chamber detects the material collection status, enabling it to alert personnel when the chamber is full, rather than blindly collecting continuously and causing blockages that require cleaning. An environmental explosion-proof gas detector is installed to continuously monitor the ambient gas composition when multiple devices are operating simultaneously. This prevents carbon dioxide leaks from dry ice evaporation from causing injury. The detector automatically alarms when harmful gases are detected, requiring immediate evacuation.

[0065] This utility model equipment adopts a modular design, which makes it more convenient and efficient in transferring, reversing, disassembling, maintaining, and cleaning.

[0066] Preferably, the bottom opening of the sealed operating chamber is set in an inverted pyramid shape, without horizontal panel blocks to allow material to accumulate, which is more conducive to material collection.

[0067] Any aspects not covered in this utility model are applicable to the prior art.

[0068] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this utility model.

Claims

1. An apparatus for recycling OLED materials, comprising: The equipment includes a sealed operating chamber (1), a material collector (2), and a dry ice spraying device (3). The sealed operating chamber (1) is provided with a sealed glove opening (11) and a door (12) on its side. The filter chamber (21) of the material collector (2) is provided with a high-efficiency filter and a negative pressure suction device. The negative pressure suction device is connected to the outlet of the high-efficiency filter. The inlet of the filter chamber (21) is connected to the lower outlet of the sealed operating chamber (1) through a connecting pipe (4) to form a detachable fixed connection. The top of the sealed operating chamber (1) is provided with an air inlet (13). The lower part of the material collector (2) is also provided with a material collection compartment (22), which is located below the high-efficiency filter. The dry ice spraying device (3) includes a dry ice spraying gun, a dry ice storage device, and a conveying pipe. The dry ice spraying gun is connected to the dry ice storage device through the conveying pipe. The dry ice spraying gun is placed inside the sealed operating chamber (1).

2. The recycled OLED material apparatus of claim 1, wherein, The hatch (12) is a hydraulically assisted hatch, which includes a gas spring assist rod (121) and a feed door plate (122) provided at the feed inlets (a) on both sides of the sealed operating chamber (1). One end of the feed door plate (122) is rotatably hinged to the sealed operating chamber (1), and the gas spring assist rod (121) is provided on both sides of it. One end of the gas spring assist rod (121) is hinged to the feed door plate (122), and the other end is hinged to the sealed operating chamber (1). An embedded seal (123) is provided between the feed door plate (122) and the outer edge of the feed inlet (a).

3. The recycled OLED material apparatus of claim 1, wherein, The glove opening (11) is a double-sealed glove opening, which includes an embedded seal, an inner silicone glove and an outer butyl rubber glove.

4. The recycled OLED material apparatus of claim 1, wherein, A door position sensor is also provided at the door (12) of the sealed operating chamber (1), and a gas detector (5) for continuous monitoring of ambient gas is installed at the bottom of the sealed operating chamber (1).

5. The recycled OLED material apparatus of claim 1, wherein, Pressure sensors (6) are installed on the top of the sealed operating chamber (1) and at the inlet of the material collector (2), respectively. A differential pressure sensor (7) is installed on the connecting pipeline (4). The pressure sensors (6) and differential pressure sensors (7) are linked to the negative pressure suction device for control.

6. The recycled OLED material apparatus of claim 1, wherein, The air inlet (13) at the top of the sealed operating chamber (1) is also equipped with a HEPA filter and an air volume regulating valve.

7. The recycled OLED material apparatus of claim 1, wherein, The sealed operating chamber (1) is equipped with an explosion-proof lighting system (8), which includes a ring-shaped distribution of explosion-proof LED light strips.

8. The recycled OLED material apparatus of claim 1, wherein, The dry ice spray gun is mounted inside the sealed operating chamber (1) via a universal joint, and its spray pressure range is 0.3-0.8 MPa.

9. The recycled OLED material apparatus of claim 1, wherein, The bottom of the sealed operating chamber (1) is shaped like an inverted pyramid.

10. The recycled OLED material apparatus of claim 1, wherein, The conveying pipeline is wrapped with a constant temperature insulation layer.

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