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A method and device for sorting and selecting waste mobile phone materials
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A mobile phone and waste technology, which is applied in the field of sorting and selection of waste mobile phone materials, can solve problems such as leakage, pollution of atmospheric soil, water resources, and substandard open-air dismantling, etc. leaked effect
Inactive Publication Date: 2018-02-09
XIANGTAN UNIV
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On the other hand, leaving old mobile phones at home not only takes up space, but also pollutes the environment
[0003] At present, there are two main treatment methods for waste mobile phones after recycling. One is direct open-air dismantling and incineration that do not meet the specifications. Brominated diphenyl ether, polyvinyl chloride, PVC and other toxic and harmful substances pollute the atmosphere, soil, water resources, etc.; the other is to use chemical methods, the process is complicated, the cost is high, and the chemical solvents used are harmful to the environment or corrosive. sex
In addition, the current waste mobile phone recycling market is not perfect, and there are mainly the following problems: a large amount of personal information is stored in used mobile phones, and there is a risk of leakage; there is no reasonable incentive mechanism; deal with
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Embodiment 1
[0039]Embodiment 1, the present invention provides a kind of method that is used for the classification and selection of waste mobile phone materials, it is characterized in that: after the mobile phone is pretreated, mainly carry out the following several steps:
[0040] 1) Matching and identification, use the database to match and identify the items entering the process, and the gravity sensing device will measure and weigh them. If it is identified as a mobile phone, analyze the model and value of the mobile phone; if it is identified as a non-mobile phone, refuse to proceed to the next step;
[0041] 2) For the crushing of the mobile phone, a crushing device is used to cut the whole into small pieces;
[0042] 3) Grinding the mobile phone, using a grinding device to grind the cut pieces into powdery substances;
[0043] 4) For the purification of powder, a classification device is used to classify the powdery substances and collect them by category. refer to Figure 1 to...
Embodiment 2
[0044] Embodiment 2, the pretreatment of the mobile phone of the present invention includes cleaning the body, removing the battery, memory card and phone card of the mobile phone, and tearing off the mobile phone film on the surface. refer to Figure 1 to Figure 3 , and the rest are the same as the above-mentioned embodiment.
Embodiment 3
[0045] Embodiment 3, the matching recognition step of the present invention is realized by an image recognizer, scanning the item to obtain an image, and measuring and weighing through a gravity sensing device, matching with the database in the recognizer, and if it is determined to be a mobile phone, the brand of the mobile phone is given Model and recovery price and print a small ticket, send it to the crushing device in step 2, and the motor shaft will rotate forward for crushing; if it is determined that it is not a mobile phone, the main shaft of the crushing device in step 2 will reverse, and the item will exit the process. refer to Figure 1 to Figure 3 , and the rest are the same as the above-mentioned embodiment.
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Abstract
Provided are a method and device used for classifying and selecting waste mobile phone materials. The technical aim of recycling processing of waste mobile phones bad for the environment or having corrosiveness is mainly achieved. According to the technical scheme, the method is characterized in that after the mobile phones are preprocessed, the method comprises the several following steps of (1) matching recognition, specifically, objects entering the procedure are subjected to matching recognition through a database and are measured and weighed through a gravity sensing device, if the objects are recognized as mobile phones, the types and values of the mobile phones are analyzed; and if not, the next step of operation is refused; (2) crushing of the mobile phones, specifically, the whole mobile phones are cut into small block substances through a crushing device; (3) grinding of the mobile phones, specifically, the small cut block substances are ground into powdery substances through a grinding device; and (4) purification of powder, specifically, the powdery substances are graded and classified to be collected through a grading device. The method and device used for classifying and selecting waste mobile phone materials are mainly applied to crushing and purification of the waste mobile phones and classified recovery of various materials, increase the resource utilization rate, and have the great practical value.
Description
technical field [0001] The invention relates to a method and a device for sorting and selecting waste mobile phone materials. Background technique [0002] At present, as of 2015, my country's mobile phone users have exceeded 1.2 billion, and some users even own two or three mobile phones. In contrast to the huge number of holdings, there is a huge elimination of mobile phones. According to the survey, Chinese consumers change their mobile phones every 15 months on average, and most of the replaced mobile phones remain in the hands of users, with a recovery rate of less than 1%. In fact, many parts and materials of used mobile phones can be recycled, especially precious metals scattered in electronic components, motherboards, chips and other parts such as: palladium (100g / t), gold (280g / t), silver (2kg / t), copper (100kg / t), etc., account for about 40% of the total weight of mobile phones, and their content is much higher than that of general natural heavy metal deposits. ...
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Application Information
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