Magnetic separation secondary recovery device

Abstract

The invention relates to the field of recovery, in particular to a magnetic separation secondary recovery device which comprises a first wet type magnetic separator, a first jigger, a second jigger and a second wet type magnetic separator, the right side of the first wet type magnetic separator is communicated with a slag conveying belt, and the left side of the first wet type magnetic separator is connected with the right side of the first jigger; the left side of the first jigger is connected with the right side of the second jigger, and the left side of the second jigger is connected with the right side of the second wet magnetic separator. According to the product, the two wet magnetic separators are arranged on the left side and the right side of the jigger respectively, magnetic metal with high economic value can be precipitated in the jigger, slag is precipitated and cleaned through the jigger, then the magnetic metal is thoroughly recycled through the wet magnetic separators, and meanwhile the magnetic metal with the high economic value cannot be lost.

Description

Technical Field

[0001] The invention relates to the technical field of recycling, in particular to a magnetic separation secondary recycling device. Background Art

[0002] Slag, also known as molten slag, is a melt generated during the pyrometallurgical process that floats on the surface of liquid substances such as metals. It is mainly composed of oxides (silicon dioxide, aluminum oxide, calcium oxide, magnesium oxide), and often contains sulfides and a small amount of metal.

[0003] In order to recycle and reuse metals, the slag must be processed. The current slag processing equipment is not thorough enough when recovering magnetic metals, and the recovery rate of magnetic metals is not high. Summary of the invention

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A magnetic separation secondary recovery device comprises a first wet magnetic separator, a first jig, a second jig and a second wet magnetic separator, the right side of the first wet magnetic separator is connected to a slag conveyor belt and the left side of the first wet magnetic separator is connected to the right side of the first jig, the left side of the first jig is connected to the right side of the second jig, and the left side of the second jig is connected to the right side of the second wet magnetic separator. The working process of the device is as follows: the slag conveyor belt conveys the crushed slag to the first wet magnetic separator, and the first wet magnetic separator sucks out part of the slag with magnetic Metals (mostly metals of low economic value such as iron powder), but some magnetic metals will not be sucked out. The slag after wet magnetic separation will be sent to the first jig and the second jig in turn. The jig will precipitate and clean the slag to make the slag particles clean. At this time, half copper and half iron metals will be precipitated in the grid of the jig, and the rest of the magnetic metals will be transported from the second jig to the second wet magnetic separator along with the slag, and then the second wet magnetic separator will be used to recover the magnetic metals, which can better separate the magnetic metals and improve the recovery rate of the magnetic metals.

[0006] As a further solution of the present invention: the left side of the first wet magnetic separator is connected to the right side of the first jig through a guide groove, which has a simple structure and a good conveying effect.

[0007] As a further solution of the present invention: the second wet magnetic separator adopts a high-magnetic wet magnetic separator. At this time, the semi-copper and semi-iron metals with higher economic value have been precipitated in the jig grid. At this time, the use of high-magnetic wet separation will not cause the loss of higher-value metals, and the magnetic metal can be completely recovered.

[0008] As a further solution of the present invention: the first wet magnetic separator adopts a low-magnetic wet magnetic separator, because high-magnetic wet separation will magnetically separate the semi-copper and semi-iron metal with higher economic value into the iron powder, resulting in incomplete separation, which in turn affects the economic value of the recovered metal.

[0009] As a further solution of the present invention: the shells of the first jig and the second jig are both made of steel plates, which have a long service life and are easy to process.

[0010] As a further solution of the present invention: the outer shells of the first jig and the second jig are coated with a zinc layer to prevent corrosion and extend the service life.

[0011] As a further solution of the present invention: baffles are provided on both sides of the guide groove to prevent the slag from sliding down from both sides of the guide groove, thereby ensuring that the magnetic metal can be fully recovered.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This product sets two wet magnetic separators on the left and right sides of the jig, which can precipitate the magnetic metal with higher economic value in the jig. After the slag is precipitated and cleaned by the jig, the wet magnetic separator is used to completely recover the magnetic metal without causing the loss of the magnetic metal with higher economic value. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the magnetic separation secondary recovery device in an embodiment of the present invention.

[0015] In the figure: 1-first wet magnetic separator, 2-guide trough, 3-first jig, 4-second jig, 5-second wet magnetic separator. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] Most existing magnetic separation devices use only one wet magnetic separator, which usually first performs wet magnetic separation, and then uses a jig for precipitation and cleaning. At this time, some magnetic metals will be precipitated in the jig, but some magnetic metals will still exist in the slag, and the magnetic metals in the slag cannot be completely recovered. In the present invention, a wet magnetic separator is added after the jig, and the slag after precipitation and cleaning can be wet magnetically separated again, so that the magnetic metals can be better separated and the recovery rate of the magnetic metals can be improved.

[0018] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0019] See also Figure 1A magnetic separation secondary recovery device comprises a first wet magnetic separator 1, a first jig 3, a second jig 4 and a second wet magnetic separator 5, the right side of the first wet magnetic separator 1 is connected to a slag conveyor belt and the left side of the first wet magnetic separator 1 is connected to the right side of the first jig 3, the left side of the first jig 3 is connected to the right side of the second jig 4, and the left side of the second jig 4 is connected to the right side of the second wet magnetic separator 5. The working process of the device is as follows: the slag conveyor belt transports the crushed slag to the first wet magnetic separator 1, and the first wet magnetic separator 1 absorbs part of the magnetic slag in the slag. Metal (mostly metals with low economic value such as iron powder), but some magnetic metals will not be sucked out. The slag after wet magnetic separation will be sent to the first jig 3 and the second jig 4 in sequence. The jig will precipitate and clean the slag to make the slag particles clean. At this time, the half-copper and half-iron magnetic metal will be precipitated in the grid of the jig, and the remaining magnetic metal will be transported from the second jig 4 to the second wet magnetic separator 5 along with the slag, and then the second wet magnetic separator 5 will be used to recover the magnetic metal, which can better sort out the magnetic metal with higher economic value and improve the recovery rate of the magnetic metal.

[0020] As an embodiment of the present invention, the left side of the first wet magnetic separator 1 is connected to the right side of the first jig 3 through the guide groove 2, which has a simple structure and good conveying effect, and the slag can be smoothly conveyed to the first jig 3. Preferably, the height of the first wet magnetic separator 1 is higher than the height of the first jig 3, and the guide groove 2 is inclined downward. Under the action of gravity, the slag can be more smoothly conveyed from the first wet magnetic separator 1 to the first jig 3.

[0021] As an embodiment of the present invention, the second wet magnetic separator 5 adopts a high-magnetic wet magnetic separator. At this time, the semi-copper and semi-iron metals with higher economic value have been precipitated in the jig grid. At this time, the use of high-magnetic wet separation will not cause the loss of higher-value metals, and all magnetic metals can be sucked out to achieve complete recovery of magnetic metals.

[0022] As an embodiment of the present invention, the first wet magnetic separator 1 adopts a low-magnetic wet magnetic separator, because high-magnetic wet separation will magnetically separate the semi-copper and semi-iron metal with higher economic value into the iron powder, resulting in incomplete separation, which in turn affects the economic value of the recovered metal. Low-magnetic wet separation is used to first suck out part of the magnetic metal (magnetic metal with low economic value such as iron powder), so that the magnetic metal with higher economic value can be completely cleaned and precipitated by the jig, thereby being separated from the magnetic metal with low economic value, and the recovery effect is good.

[0023] As an embodiment of the present invention, the shells of the first jig 3 and the second jig 4 are both made of steel plates, which have certain impact resistance, long service life, are easy to process, and have low material and processing costs.

[0024] As an embodiment of the present invention, the outer shells of the first jig 3 and the second jig 4 are coated with a zinc layer. The galvanizing process is mature and easy to operate. The outer shell with a zinc layer can prevent corrosion, extend the service life, and ensure that the device can always work normally.

[0025] As an embodiment of the present invention, baffles are provided on both sides of the guide groove to prevent the slag from sliding down from both sides of the guide groove, ensuring that the slag can be fully fed into the first jig 3 and the second jig 4, so that the magnetic metal can be fully recovered.

[0026] It should be noted that in the present invention, unless otherwise clearly specified and limited, the terms "rotate", "fix", "have", etc. should be understood in a broad sense, for example, it can be a welding connection, a bolt connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A magnetic separation secondary recovery device, comprising a first wet magnetic separator, a first jig, a second jig and a second wet magnetic separator, characterized in that: The right side of the first wet magnetic separator is connected to the slag conveyor belt and the left side of the first wet magnetic separator is connected to the right side of the first jig, the left side of the first jig is connected to the right side of the second jig, and the left side of the second jig is connected to the right side of the second wet magnetic separator.

2. The magnetic separation secondary recovery device according to claim 1, characterized in that: The left side of the first wet magnetic separator is connected to the right side of the first jig through a guide groove.

3. The magnetic separation secondary recovery device according to claim 2, characterized in that: Baffles are arranged on both sides of the guide groove.

4. The magnetic separation secondary recovery device according to claim 1, characterized in that: The second wet magnetic separator is a high magnetic wet magnetic separator.

5. The magnetic separation secondary recovery device according to claim 1 or 4, characterized in that: The first wet magnetic separator is a low-magnetic wet magnetic separator.

6. The magnetic separation secondary recovery device according to claim 1, characterized in that: The shells of the first jig and the second jig are both made of steel plates.

7. The magnetic separation secondary recovery device according to claim 6, characterized in that: The shells of the first jig and the second jig are both coated with a zinc layer.

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