Leftover material recovery equipment for metal processing

Abstract

The utility model discloses leftover material recovery equipment for metal processing, which relates to the field of machining waste recovery, and comprises an electromagnetic conveying belt with a plurality of electromagnets embedded on the surface and used for adsorbing and separating iron crushed aggregates in mixed crushed aggregates, and a separation tank positioned below a mixed material conveying belt and used for separating copper crushed aggregates and aluminum crushed aggregates. Iron scraps are separated from the mixed scraps through magnetic force and conveyed away. And the copper and the aluminum are separated in a water flow scouring mode by utilizing the large density difference of the copper and the aluminum, the water flow scouring can also play a role in cleaning dust, and the subsequent cleaning procedure is reduced.

Description

Technical Field

[0001] The utility model relates to the field of machining waste recycling, in particular to a metal processing scrap recycling device. Background Art

[0002] There are many machining methods in mechanical processing, such as turning, milling, drilling, grinding and boring. When metal materials or metal parts are processed by these machining methods, some metal scraps will inevitably be produced. These metal scraps have a high recycling value.

[0003] Therefore, most machining workshops will collect and recycle these metal scraps after get off work or shutdown. The metal materials or metal parts processed by ordinary machining workshops are basically made of copper, iron and aluminum. Therefore, the recycling of metal scraps first requires the separation of these different metals.

[0004] Larger scraps can be sorted manually, but the problem is that the remaining fine scraps are difficult to separate manually. Currently, commonly used separation methods for mixed copper, iron, and aluminum scrap include magnetic separation, melting, and acid leaching. Magnetic separation is only suitable for separating mixtures of iron filings and other non-ferrous metals, while aluminum and copper filings are not affected by magnetism and are therefore difficult to separate. Melting and acid leaching, on the other hand, exploit the different melting points and chemical properties of copper and aluminum to separate them. While effective, they are costly and require high worker skills, making them unsuitable for small machining plants. Utility Model Content

[0005] In view of this, the purpose of the present invention is to propose a metal processing scrap recycling device to solve the technical problem of the lack of a low-cost and easy-to-operate copper, iron and aluminum metal scrap separation method in the prior art.

[0006] Based on the above purpose, the utility model provides a metal processing scrap recycling device, including a mixing conveyor belt for conveying mixed scraps, and the recycling device also includes:

[0007] An electromagnetic conveyor belt with a plurality of electromagnets embedded on its surface is used to absorb the iron scraps in the mixed scraps and convey them to the iron material collecting mechanism. The two ends of the electromagnetic conveyor belt are respectively located above the mixing conveyor belt and the iron material collecting mechanism;

[0008] A separation trough is located below the mixing conveyor belt, and a drop pool is provided at the front end of the separation trough. The drop pool is located directly below the end of the mixing conveyor belt. A water spray pipe is connected to the front end of the drop pool, and a drain pipe is connected to the end of the separation trough.

[0009] Furthermore, the water spray pipe and the drain pipe are both connected to an external water pump, and a pressure regulating valve is provided at the connection between the external water pump and the water spray pipe.

[0010] Furthermore, the electromagnetic conveyor belt includes a belt, a connector and side fenders, the connector is rotatably connected to the outside of the driving roller of the belt, and the side fenders are fixedly connected to the connector and located on both sides of the belt.

[0011] Furthermore, both ends of the electromagnet are fixedly connected with connecting rods, a slide groove is provided on the connecting piece and the inner wall of the side baffle, a connecting piece is provided in the slide groove on the connecting piece located at one end of the belt close to the mixing conveyor belt, the connecting rod is slidably connected in the slide groove and the connecting rod is slidably connected to the connecting piece.

[0012] Furthermore, a cable is fixedly connected to a connector located at one end of the belt close to the mixing conveyor belt. The outer end of the cable is connected to the power supply, and the inner end is connected to the connecting piece for supplying power to the electromagnet.

[0013] Furthermore, the iron material collecting mechanism is a conveyor belt with a conveying direction opposite to that of the mixing conveyor belt.

[0014] Furthermore, the separation tank is an arc-shaped water tank, and the bottom of the separation tank is a cement surface.

[0015] Furthermore, a filter plate is provided in front of the drain pipe, and the filter plate is fixedly connected in the separation tank to prevent copper scrap and aluminum scrap from passing through.

[0016] The advantages of the utility model are: 1. The electromagnet on the electromagnetic conveyor belt will automatically be energized when it is near the mixing conveyor belt, and will automatically be de-energized after leaving it, so that the iron scraps in the mixed scraps can be adsorbed and separated from the electromagnetic conveyor belt, and can automatically fall down after reaching the other end, so as to separate the iron scraps from the mixed scraps and convey them away.

[0017] 2. Taking advantage of the large difference in density between copper and aluminum, the two are separated by water flushing. Since the density of copper is greater than that of aluminum, under the flushing of water, the copper scraps will remain nearby, while the aluminum scraps will be flushed farther away, achieving separation. The method is simple and low-cost.

[0018] 3. Water flushing can also clean dust, so the iron scraps, copper scraps and aluminum scraps obtained in the end are all clean metal raw materials that can be directly recycled, reducing the subsequent cleaning process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a schematic diagram of the overall structural principle of the device of the present utility model.

[0021] Figure 2 This is a schematic diagram of the mixing and separation principle in the device of the utility model.

[0022] Figure 3 It is a structural schematic diagram of the mixing conveyor belt, electromagnetic conveyor belt and iron material collecting mechanism in the utility model.

[0023] Figure 4 It is a structural diagram of the belt and electromagnet in the utility model.

[0024] Figure 5 It is a structural diagram of the slide in the utility model.

[0025] The markings in the figure are: 01, mixed scrap, 02, iron scrap, 03, copper scrap, 04, aluminum scrap, 101, mixing conveyor belt, 102, electromagnetic conveyor belt, 103, iron material collection mechanism, 104, separation trough, 105, drop pool, 106, separation flow channel, 107, filter plate, 108, water pipe, 109, drain pipe, 110, belt, 111, connector, 112, side baffle, 113, electromagnet, 114, connecting rod, 115, slide, 116, connecting piece, 117, cable.

[0026] Specific implementation and principle

[0027] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0028] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the usual meanings understood by people with ordinary skills in the field to which this utility model belongs. The "first", "second" and similar words used in this utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0029] The first aspect of the present invention is as follows Figure 1 and Figure 2 As shown, this solution is designed to simply and conveniently separate the iron scraps 02, copper scraps 03, and aluminum scraps 04 from the mixed metal scraps 01 generated in the machining workshop and recycle them in different categories.

[0030] This solution is mainly divided into two parts. The first part is to separate the iron scrap 02 from the mixed scrap 01. Specifically, Figure 3 、 Figure 4 and Figure 5 As shown, the mixed scrap 01 is transported via a mixing conveyor belt 101. Above the mixing conveyor belt 101, an electromagnetic conveyor belt 102 is mounted with several electromagnets 113 embedded in its surface. These electromagnets 113 are used to attract and transport the iron scrap 02 from the mixed scrap 01 to an iron collection mechanism 103. The two ends of the electromagnetic conveyor belt 102 are located above the mixing conveyor belt 101 and the iron collection mechanism 103, respectively. The closest distance between the electromagnets 113 on the electromagnetic conveyor belt 102 and the mixing conveyor belt 101 is between 4 and 7 cm.

[0031] The electromagnetic conveyor belt 102 comprises a belt 110, a connector 111, and side guards 112. The connector 111 is rotatably connected to the outside of the drive roller of the belt 110. The side guards 112 are fixedly connected to the connector 111 and located on both sides of the belt 110. The side guards 112 are also mounted on the ground via brackets to support the entire electromagnetic conveyor belt 102. The electromagnet 113 is embedded in the belt 110, with its outer surface exposed and slightly higher than the surface of the belt 110.

[0032] In addition, both ends of the electromagnet 113 are fixedly connected to a connecting rod 114, and a slide groove 115 is opened on the inner wall of the connecting member 111 and the side baffle 112. A connecting piece 116 is provided in the slide groove 115 on the connecting member 111 located at one end of the belt 110 close to the mixing conveyor belt 101. The outer end of the connecting rod 114 passes through the belt 110 and is slidably connected in the slide groove 115, and the connecting rod 114 is slidably connected to the connecting piece 116.

[0033] The electromagnet 113 on the electromagnetic conveyor belt 102 is automatically powered on when it is near the mixing conveyor belt 101 and is automatically powered off when it leaves the mixing conveyor belt 101, which does not require additional control and ensures accuracy and stability.

[0034] A cable 117 is fixedly connected to a connector 111 located at the end of the belt 110 near the mixing conveyor belt 101. The outer end of cable 117 is connected to a power source, and the inner end is connected to a connecting piece 116, which is used to power the electromagnet 113. The connecting piece 116 and the connecting rod 114 are both made of copper and, together with the cable 117, serve as the power connection line for the electromagnet 113. The external power supply is always on. Therefore, when the connecting rod 114 of the electromagnet 113 slides into the chute 115 on the connector 111 located at the end of the belt 110 near the mixing conveyor belt 101 and contacts the connecting piece 116 in the chute 115, the electromagnet 113 is energized and generates a magnetic force. Because this position is located at the end of the belt 110 near the mixing conveyor belt 101, the electromagnet 113 attracts the iron scrap 02 from the mixed scrap 01 passing through the corresponding position on the mixing conveyor belt 101 and then transports it away.

[0035] Once the electromagnet 113, holding the scrap iron 02, rotates to its upright position and its connecting rod 114 clears the chute 115 on the connector 111 near one end of the mixing conveyor belt 101, the subsequent chute 115 lacks the connecting piece 116, causing the electromagnet 113 to lose power and lose its magnetic force. Consequently, the electromagnetic conveyor belt 102 functions as a normal conveyor belt. Once the scrap iron 02 reaches the iron collection mechanism 103, it automatically falls onto the mechanism due to its own gravity. This separates the scrap iron 02 from the mixed material 01 by adsorption from the electromagnetic conveyor belt 102 and allows it to automatically fall off upon reaching the other end, separating the scrap iron 02 from the mixed material 01 and conveying it away.

[0036] Preferably, the iron material collecting mechanism 103 is a conveyor belt with a conveying direction opposite to that of the mixing conveyor belt 101, so after the iron scraps 02 automatically fall onto the conveyor belt, they will be conveyed out in the opposite direction for easy collection.

[0037] The second part is to separate the copper scrap 03 and the aluminum scrap 04 again from the mixed scrap 01 from which the iron scrap 02 is separated. Specifically, Figure 1 and Figure 2 As shown. A separation trough 104 is set on the ground, and a drop pool 105 is set at the front end of the separation trough 104, and the two are connected. The drop pool 105 is located directly below the end of the mixing conveyor belt 101. After the mixing conveyor belt 101 conveys the mixed crushed material 01 to the end, the mixed crushed material 01 falls into the drop pool 105, and the front end of the drop pool 105 is connected to a water spray pipe 108. In addition, the end of the separation trough 104 is connected to a drain pipe 109. The water spray pipe 108 and the drain pipe 109 are both connected to an external water pump, and a pressure regulating valve is also provided at the connection between the external water pump and the water spray pipe 108. A sedimentation tank can also be connected in the middle of the drain pipe 109 to precipitate dust and gravel, thereby playing a dust removal role.

[0038] The external water pump sprays water into the drop pool 105 through the water spray pipe 108. After passing through the drop pool 105, the water flows into the separation tank 104, and finally flows back to the external water pump from the drainage pipe 109 at the end of the separation tank 104 through the separation tank 104. The pressure regulating valve is used to adjust the water pressure in the water spray pipe 108, thereby adjusting the flow rate of water in the entire separation tank 104.

[0039] Since the density of copper is 8.96g / cm3 and the density of aluminum is 2.7g / cm3, the density of copper is much greater than that of aluminum. Therefore, the two are separated by water flushing. Since the density of copper is much greater than that of aluminum, under the flushing of water, the copper scrap 03 will remain nearby, while the aluminum scrap 04 will be flushed farther away, achieving separation. The method is simple and low-cost.

[0040] Preferably, a filter plate 107 is provided in front of the drain pipe 109. The filter plate 107 is fixedly connected to the separation tank 104 to prevent the copper scrap 03 and aluminum scrap 04 from passing through. The separation tank 104 is an arc-shaped water trough, and the bottom of the separation tank 104 is a cement surface or a relatively rough plastic surface. The arc-shaped water trough is designed to increase the separation slot 104 and ensure the separation of the copper scrap 03 and aluminum scrap 04. The roughness of the bottom of the separation tank 104 also helps to better separate the copper scrap 03 and aluminum scrap 04. DETAILED DESCRIPTION

[0041] After the workshop closes, workers collect the metal scraps from machining for subsequent recycling. Larger scraps can be manually sorted, and the remaining finely divided mixed material 01 is poured onto the mixing conveyor belt 101, where it is transported.

[0042] During the conveying process, the external power supply is always on. Therefore, after the connecting rod 114 of the electromagnet 113 slides into the chute 115 on the connecting piece 111 located at one end of the belt 110 near the mixing conveyor belt 101, it contacts and connects with the connecting piece 116 in the chute 115. Then, the power supply will energize the electromagnet 113 through the cable 117, the connecting piece 116, and the connecting rod 114 to generate magnetic force. Because this position is located at the end of the belt 110 near the mixing conveyor belt 101, the electromagnet 113 above the mixing conveyor belt 101 will attract the iron scrap 02 in the mixed scrap 01. When the connecting rod 114 of the electromagnet 113 leaves the chute 115 on the connecting piece 111 near one end of the mixing conveyor belt 101, the subsequent chute 115 does not have the connecting piece 116, so the electromagnet 113 will lose power and lose its magnetic force. Therefore, the electromagnetic conveyor belt 102 functions as a normal conveyor belt. When the iron scrap 02 is conveyed to the iron collection mechanism 103, it automatically falls onto the iron collection mechanism 103 due to its own gravity. After the iron scrap 02 in the mixed scrap 01 is separated and conveyed away, the remaining mixed scrap 01 (copper scrap 03 and aluminum scrap 04) falls from the mixed scrap conveyor belt 101 into the drop pool 105 after it reaches the end of the mixed scrap conveyor belt 101.

[0043] After all the mixed scraps 01 have fallen into the drop tank 105, the external water pump is activated and the water pressure is adjusted via a pressure regulating valve. The external water pump sprays water into the drop tank 105 through a water spray pipe 108. The water flows through the drop tank 105 and then flows into the separation tank 104. During this process, the water flow scours the mixed scraps 01 (copper scraps 03 and aluminum scraps 04), causing the copper scraps 03 and aluminum scraps 04 to gradually move and separate under the flow. Because the density of copper is much greater than that of aluminum, the copper scraps 03 remain nearby under the flow, while the aluminum scraps 04 are washed further away.

[0044] After observing and judging that the copper scrap 03 and the aluminum scrap 04 are basically separated (a small amount of mixing is allowed as long as it can meet the subsequent recycling requirements), the worker can stop the external water pump and wait until the water has dried up (the front end of the separation tank 104 and the bottom of the drop pool 105 are slightly higher than the bottom of the rear end of the separation tank 104). Then, the copper scrap 03 and the aluminum scrap 04 can be taken out and the equipment can be stopped.

[0045] Based on the above, the present invention is designed so that the electromagnet 113 on the electromagnetic conveyor belt 102 automatically powers on when near the mixing conveyor belt 101 and automatically powers off when away from it. This achieves the purpose of adsorbing and separating the iron scrap 02 from the mixed scrap 01 from the electromagnetic conveyor belt 102, and automatically dropping and conveying it away after reaching the other end. In addition, the large difference in density between copper and aluminum is utilized to separate the two by flushing with water. Since the density of copper is much greater than that of aluminum, the copper scrap 03 will remain nearby under the flushing of the water, while the aluminum scrap 04 will be flushed farther away, achieving separation. The method is simple and low in cost. The flushing of the water also has the effect of cleaning dust, so the resulting iron scrap 02, copper scrap 03, and aluminum scrap 04 are all clean metal raw materials that can be directly recycled, reducing the subsequent cleaning process and saving costs.

[0046] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention, including the claims, is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0047] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A scrap recycling device for metal processing, comprising a mixing conveyor belt (101) for conveying mixed scrap (01), characterized in that: The recycling equipment also includes: An electromagnetic conveyor belt (102) with a plurality of electromagnets (113) embedded on its surface is used to absorb the iron scraps (02) in the mixed scraps (01) and convey them to the iron material collecting mechanism (103), with both ends of the electromagnetic conveyor belt (102) respectively located above the mixed material conveyor belt (101) and the iron material collecting mechanism (103); A separation trough (104) is located below the mixing conveyor belt (101), and a material drop pool (105) is provided at the front end of the separation trough (104). The material drop pool (105) is located directly below the end of the mixing conveyor belt (101). A water spray pipe (108) is connected to the front end of the material drop pool (105), and a drainage pipe (109) is connected to the end of the separation trough (104).

2. The metal processing scrap recycling equipment according to claim 1, characterized in that: The water spray pipe (108) and the drain pipe (109) are both connected to an external water pump, and a pressure regulating valve is provided at the connection between the external water pump and the water spray pipe (108).

3. The metal processing scrap recycling equipment according to claim 1, characterized in that: The electromagnetic conveyor belt (102) comprises a belt (110), a connecting member (111) and side baffles (112), wherein the connecting member (111) is rotatably connected to the outside of a driving roller of the belt (110), and the side baffles (112) are fixedly connected to the connecting member (111) and are located on both sides of the belt (110).

4. The metal processing scrap recycling equipment according to claim 3, characterized in that: The two ends of the electromagnet (113) are fixedly connected with connecting rods (114), and a sliding groove (115) is provided on the inner side wall of the connecting member (111) and the side baffle (112). A connecting piece (116) is provided in the sliding groove (115) on the connecting member (111) located at one end of the belt (110) close to the mixing conveyor belt (101), and the connecting rod (114) is slidably connected in the sliding groove (115), and the connecting rod (114) and the connecting piece (116) are slidably connected.

5. The metal processing scrap recycling equipment according to claim 4, characterized in that: A cable (117) is fixedly connected to a connector (111) located at one end of the belt (110) close to the mixing conveyor belt (101). The outer end of the cable (117) is connected to a power source, and the inner end is connected to a connecting piece (116) for supplying power to the electromagnet (113).

6. The metal processing scrap recycling equipment according to claim 1, characterized in that: The iron material collecting mechanism (103) is a conveyor belt with a conveying direction opposite to that of the mixing conveyor belt (101).

7. The metal processing scrap recycling equipment according to claim 1, characterized in that: The separation tank (104) is an arc-shaped water tank, and the bottom of the separation tank (104) is a cement surface.

8. The metal processing scrap recycling equipment according to claim 1, characterized in that: A filter plate (107) is also provided in front of the drainage pipe (109). The filter plate (107) is fixedly connected to the separation tank (104) and is used to prevent copper scrap (03) and aluminum scrap (04) from passing through.

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