CN103606424B - One utilizes metal and nonmetallic method in ultrasound wave separating waste, worn cable - Google Patents

Abstract

One utilizes metal and nonmetallic method in ultrasound wave separating waste, worn cable, including following method step, 1) it is carried out collecting the waste cable come; 2) cable after cleaning is classified; 3) cable after having classified stretched, smooth out with the fingers suitable, be then fed into shearing equipment and cut into chunks; 4) cable cut into chunks feeding grinding equipment will carry out process of milling; 5) cable segment after milling is sent in freezing equipment freezing 6 hours; 6) cable segment after freezing being completed is put in Vltrasonic device, and add water 10-20 times amount, soaks 0.5-2 hour in 40-60 DEG C, and in temperature 40 DEG C～50 DEG C, ultrasonic power is 500W, acoustic density 0.3W/cm², sonication times 5s-5min, supersound process 2 times; 7) cable segment after supersound process being completed is put in screening installation, sorts, and directly obtains metal and nonmetal. Present invention reduces metal in cable and be ground into the probability of powdery, decrease the loss of metals resources, to the strong adaptability shearing cable diameter, it is ensured that in cable metal and nonmetal between abundant stripping, and metal product quality is high.

Description

One utilizes metal and nonmetallic method in ultrasound wave separating waste, worn cable

Technical field

The present invention relates to technical field of resource recovery, be specifically related to one and utilize metal and nonmetallic method in ultrasound wave separating waste, worn cable.

Background technology

The Eleventh Five-Year Plan period, the industry such as electric power, railway, track traffic, the energy, building, communication, boats and ships, automobile still keeps bigger scale of investment, and China's wires and cables industry is in the quick rise period of development in China. Along with the fast development of China and Social economy, the production and consumption of cable becomes China immediately following the second largest industry after auto industry. The fast development of wires and cables industry necessarily brings eliminating of a large amount of scrap electrical wires cable. The composition of cable includes conductor metal materials such as () valuable copper, aluminum, insulator and cladding protective layer. The main material of insulator and cladding protective layer is the halogen-containing materials such as polrvinyl chloride (accounting for 70%), polyethylene (accounting for 20%), fluororesin, neoprene, chlorosulfonated polyethylene. Additionally, material therefor also includes with the addition of the polyolefine material containing halogen flames such as chlorine or bromines. The main large raw-material rapid rise of price of current copper, aluminum, plastics isoelectric line cable, it addition, China is as the copper resource shortage of the important raw and processed materials of national economy. Estimate can exploit 30 years in existing exploitation rate world copper ore resource, and the same resource of China can exploit for 7 years. Therefore, eliminate the double contradition of the resource and environment brought for scrap electrical wires cable, carry out metallic copper, aluminum, the resource of ferrum and innoxious, the high efficiente callback reproduction operation of other nonmetal resources in the 7th class solid waste of scrap electrical wires cable and there is important social meaning and economic worth.

The reclaiming method of scrap electrical wires cable substantially can be divided three classes: hot method, chemical method and physical method.Wherein hot method such as incineration technology reclaims metal in electric wire and is not only easily caused environmental pollution, and easily causes metallics to aoxidize, and Footwall drift surface exists the carbon residue being difficult to clean off, and reduces the grade reclaiming product. Therefore this method is prohibited by country. Though and method for pyrolysis is compared incineration technology in atmospheric pollution and has been had and greatly improve, its metal quality to burn similar, and belong to high-temperature process technology, equipment sealed and vent gas treatment all has higher requirements. Chemical method is to be made the materials such as electric wire outer layer plastic, rubber dissolve by solvent, thus exposing metallics, but the method can produce the organic liquid waste of high concentration, and its harmless treatment at present and safety dumping exist bigger difficulty. It is little that physical method has environmental pollution, scrap electrical wires electrical cables separate degree advantages of higher, is quickly grow in the world and apply more technical method at present.

Summary of the invention

The technical problem to be solved is in that to provide a kind of energy-conserving and environment-protective, separates and utilizes metal and nonmetallic method in ultrasound wave separating waste, worn cable thoroughly.

The technical problem to be solved realizes by the following technical solutions:

One utilizes metal and nonmetallic method in ultrasound wave separating waste, worn cable, including following method step,

1) waste cable that collection is come is carried out, and removes surface irregularities and greasy dirt, it is possible to increase the quality of later separation product;

2) cable after cleaning being classified, the diameter installing material and cable is classified, and different diameters can be divided into a class within 20%;

3) being stretched by the cable after having classified, smooth out with the fingers suitable, be then fed into shearing equipment and cut into chunks, the length of every section is at 3-5mm;

4) cable cut into chunks is sent in grinding equipment carry out processs of milling, make the metal in cable and nonmetal generation relative motion, but do not separate, namely nonmetal still by metal parcel, it is unlikely to metal and nonmetal rolls in powder;

5) being sent into by the cable segment after milling in freezing equipment freezing 6 hours, cryogenic temperature, at-10 DEG C, changes the physical property of non-metallic layer by freezing so that separates and is more prone to;

6) cable segment after freezing being completed is put in Vltrasonic device, and add water 10-20 times amount, soaks 0.5-2 hour in 40-60 DEG C, and in temperature 40 DEG C～50 DEG C, ultrasonic power is 500W, acoustic density 0.3W/cm², sonication times 5s-5min, supersound process 2 times;

7) cable segment after supersound process being completed is put in screening installation, sorts, and directly obtains metal and nonmetal, and separation rate reaches more than 90%.

The invention has the beneficial effects as follows: present invention reduces metal in cable and be ground into the probability of powdery, decrease the loss of metals resources, to the strong adaptability shearing cable diameter, abundant stripping between ensureing metal in cable and being nonmetal, and metal product quality is high, providing good condition for fully sorting disaggregatedly of follow-up all kinds of resources, in the waste cable of the present invention, metal and nonmetal charge stripping efficiency can more than 90%.

Detailed description of the invention

For the technological means making the present invention realize, creation characteristic, reach purpose and effect and be easy to understand, below in conjunction with specific embodiment, the present invention is expanded on further.

One utilizes metal and nonmetallic method in ultrasound wave separating waste, worn cable, including following method step,

1) waste cable that collection is come is carried out, and removes surface irregularities and greasy dirt, it is possible to increase the quality of later separation product;

2) cable after cleaning being classified (copper, ferrum, aluminum), the diameter installing material and cable is classified, and different diameters can be divided into a class within 20%;

3) being stretched by the cable after having classified, smooth out with the fingers suitable, be then fed into shearing equipment and cut into chunks, the length of every section is at 3-5mm;

4) cable cut into chunks is sent in grinding equipment carry out processs of milling, make the metal in cable and nonmetal generation relative motion, but do not separate, namely nonmetal still by metal parcel, it is unlikely to metal and nonmetal rolls in powder;

5) being sent into by the cable segment after milling in freezing equipment freezing 6 hours, cryogenic temperature, at-10 DEG C, changes the physical property of non-metallic layer by freezing so that separates and is more prone to;

6) cable segment after freezing being completed is put in Vltrasonic device, and add water 10-20 times amount, soaks 0.5-2 hour in 40-60 DEG C, and in temperature 40 DEG C～50 DEG C, ultrasonic power is 500W, acoustic density 0.3W/cm², sonication times 5s-5min, supersound process 2 times;

7) cable segment after supersound process being completed is put in screening installation, sorts, and directly obtains metal and nonmetal, and separation rate reaches more than 90%.

The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described. Skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; described in above-described embodiment and description is that principles of the invention is described; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements both fall within the claimed scope of the invention. Claimed scope is defined by appending claims and equivalent thereof.

Claims (1)

1. one kind utilizes metal and nonmetallic method in ultrasound wave separating waste, worn cable, it is characterised in that: include following method step,

1) waste cable that collection is come is carried out, and removes surface irregularities and greasy dirt, it is possible to increase the quality of later separation product;

2) cable after cleaning being classified, classify according to the diameter of material and cable, different diameters is divided into a class within 20%;

3) being stretched by the cable after having classified, smooth out with the fingers suitable, be then fed into shearing equipment and cut into chunks, the length of every section is at 3-5mm;

4) cable cut into chunks is sent in grinding equipment carry out processs of milling, make the metal in cable and nonmetal generation relative motion, but do not separate, namely nonmetal still by metal parcel, it is unlikely to metal and nonmetal rolls in powder;

5) being sent into by the cable segment after milling in freezing equipment freezing 6 hours, cryogenic temperature, at-10 DEG C, changes the physical property of non-metallic layer by freezing so that separates and is more prone to;

6) cable segment after freezing being completed is put in Vltrasonic device, and add water 10-20 times amount, soaks 0.5-2 hour in 40-60 DEG C, and in temperature 40 DEG C～50 DEG C, ultrasonic power is 500W, acoustic density 0.3W/cm², sonication times 5s-5min, supersound process 2 times;

7) cable segment after supersound process being completed is put in screening installation, sorts, and directly obtains metal and nonmetal.