Iron removal device for recycled concrete raw materials

Abstract

The utility model discloses a recycled concrete raw material iron removal device which comprises a vertical cylinder, a feeding hopper is welded to the top end of the vertical cylinder, and the bottom of the vertical cylinder is communicated with a bottom box. According to the concrete deironing device, the two deironing shells are symmetrically arranged on the upper portion of the vertical barrel, the chain plate type conveying belt of each deironing shell is provided with the driving roller with the iron attracting barrel shell, and the first electromagnets installed in the deironing shells are combined, so that when concrete fragments falling from the feeding hopper fall to the installation height of the deironing shells, the deironing shells can be separated from the driving rollers; the broken reinforcing steel bars doped in the concrete fragments are located in the adsorption range of an iron attraction barrel shell and a first electromagnet and are adsorbed to the surface of a chain plate type conveying belt, and along with rotation of the chain plate type conveying belt in the two iron removal shells, the broken reinforcing steel bars separated from the adsorption range of the iron attraction barrel shell and the first electromagnet are automatically separated from the adsorption state of the chain plate type conveying belt; and a slope plate arranged on the bottom box can be used for carrying out secondary iron removal by adopting a second electromagnet in the concrete fragment conveying stage.

Description

Technical Field

[0001] The utility model relates to the technical field of iron removal devices, in particular to an iron removal device for recycled concrete raw materials. Background Technique

[0002] Recycled concrete refers to the new concrete formed by crushing, cleaning and grading waste concrete blocks, mixing them in a certain proportion and gradation, partially or completely replacing natural aggregates such as sand and gravel, and then adding cement, water, etc. Among them, some iron-containing impurities such as broken steel bars will be doped during the processing of recycled concrete. These iron-containing impurities are likely to damage the machine equipment during the subsequent concrete processing, and also have a certain impact on the quality of concrete. Therefore, an iron removal device is needed.

[0003] After retrieval, the patent publication number CN217747347U discloses an impurity iron removal device for concrete production. In this scheme, while the threaded stirring blades are used to turn and stir the concrete, the electromagnet is used to adsorb and collect the iron slag in the concrete, avoiding the waste of iron resources caused by incomplete tumbling of the concrete and increasing the practicability of this device.

[0004] Therefore, an iron removal device for recycled concrete raw materials is proposed, which has the advantage of sufficient iron removal, and thus solves the problems in the above background technique. Content of the Utility Model

[0005] The purpose of the utility model is to solve the disadvantages existing in the prior art, and to propose an iron removal device for recycled concrete raw materials.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: an iron removal device for recycled concrete raw materials, including a vertical cylinder, the top of the vertical cylinder is welded with a feed hopper, and the bottom of the vertical cylinder is communicated with a bottom box. On the left and right sides of the upper part of the vertical cylinder, an iron removal shell is communicated respectively. The outer surface of the iron removal shell is fixedly installed with a motor, the output end of the motor is fixed with a driving roller through a coupling, and a magnetic iron absorption cylinder shell is sleeved on the outer surface of the driving roller. And a driving sprocket is fixed on the roller shaft of the driving roller. At one end of the iron removal shell away from the driving roller, a driven roller is installed, and a driven sprocket is fixed on the roller shaft of the driven roller. A chain is installed in a meshing manner between the driving sprocket and the driven sprocket. A chain plate conveyor belt is wound between the driving roller and the driven roller. A first electromagnet is installed corresponding to the driving roller on the inner side of the chain plate conveyor belt, and both ends of the first electromagnet are connected to the inner wall surface of the iron removal shell respectively. An iron outlet nozzle is arranged at the bottom of the iron removal shell. A second electromagnet is fixedly installed on the inner top surface of the bottom box, and a slope plate is arranged below the second electromagnet.

[0007] As a further description of the above technical solution: a plurality of springs are installed on the bottom surface of the ramp plate of the bottom box, a discharge port is opened on the right end surface of the bottom box, and the right end of the ramp plate extends to the outside of the bottom box through the discharge port.

[0008] As a further description of the above technical solution: a material guide inclined plate is welded to the left side wall inside the vertical cylinder, and another material guide inclined plate is welded to the right side wall inside the vertical cylinder. The two material guide inclined plates are inclined in opposite directions, and rubber gaskets are pasted on the top surfaces of the two material guide inclined plates.

[0009] As a further description of the above technical solution: a support rod is welded transversely to the bottom of the material guide inclined plate, and one end of the support rod is welded to the inner wall of the vertical cylinder.

[0010] As a further description of the above technical solution: the size of the active roller is the same as that of the driven roller, and the magnetic shell of the active roller is made of permanent magnet.

[0011] As a further description of the above technical solution: the cross-section of the feed hopper is a trumpet-shaped structure, and a rectangular opening is provided on the top surface of the feed hopper.

[0012] The utility model has the following beneficial effects:

[0013] In the utility model, two iron removal shells are symmetrically arranged on the upper part of the vertical cylinder, and the chain plate conveyor belt of each iron removal shell is provided with an active roller with an iron suction shell. Combined with the first electromagnet installed in the iron removal shell, when the concrete fragments falling from the feed hopper fall to the installation height of the iron removal shell, the broken steel bars mixed in the concrete fragments are in the adsorption range of the iron suction shell and the first electromagnet, and are adsorbed on the surface of the chain plate conveyor belt. As the chain plate conveyor belts in the two iron removal shells rotate, the broken steel bars that are out of the adsorption range of the iron suction shell and the first electromagnet are automatically separated from the adsorption state of the chain plate conveyor belt, and then discharged from the iron removal shell through the iron outlet nozzle. The ramp plate arranged on the bottom box can use the second electromagnet for secondary iron removal in the stage of conveying concrete fragments. Compared with the existing technology, the iron suction shell, the first electromagnet and the second electromagnet are used to achieve two iron removals, thereby increasing the sufficient iron removal of the recycled concrete raw materials.

[0014] In the utility model, a guide inclined plate with a rubber gasket is installed on both sides of the vertical cylinder, and a plurality of springs are installed on the bottom surface of the inclined plate of the bottom box. When concrete fragments fall, the concrete fragments can absorb kinetic energy and slow down after contacting the rubber gasket of the guide inclined plate, and then the kinetic energy is absorbed again by the plurality of springs of the inclined plate. On the one hand, it can reduce the noise in the iron removal stage, and on the other hand, it can reduce the collision damage of concrete fragments to the vertical cylinder and the bottom box by absorbing kinetic energy, thereby achieving the effect of extending the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of an iron removal device for recycled concrete raw materials according to the present utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of an iron removal device for recycled concrete raw materials according to the present utility model;

[0017] Figure 3 This is a top view of the internal structure of the iron removal shell of an iron removal device for recycled concrete raw materials according to the present utility model.

[0018] Legend description:

[0019] 1. Vertical cylinder; 2. Feeding hopper; 3. Bottom box; 4. Iron removal shell; 5. Motor; 6. Iron outlet nozzle; 7. Discharge port; 8. Slope plate; 9. Spring; 10. Driving roller; 11. Guide chute; 12. Driven roller; 13. Chain plate conveyor belt; 14. Iron suction cylinder shell; 15. First electromagnet; 16. Rubber gasket; 17. Second electromagnet; 18. Chain; 19. Driving sprocket; 20. Driven sprocket. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] According to an embodiment of the present utility model, an iron removal device for recycled concrete raw materials is provided.

[0022] Now, the present utility model will be further described in conjunction with the accompanying drawings and specific embodiments. As Figures 1-3As shown in the figure, a device for removing iron from raw materials of recycled concrete according to an embodiment of the present invention includes a vertical cylinder 1. A feeding hopper 2 is welded to the top end of the vertical cylinder 1, and a bottom box 3 is communicated with the bottom of the vertical cylinder 1. On the left and right sides of the upper part of the vertical cylinder 1, an iron removal shell 4 is respectively communicated. A motor 5 is fixedly installed on the outer surface of the iron removal shell 4. The output end of the motor 5 is fixed with a driving roller 10 through a coupling. A magnetic iron absorbing cylinder shell 14 is sleeved on the outer surface of the driving roller 10. A driving sprocket 19 is fixed on the roller shaft of the driving roller 10. At one end of the iron removal shell 4 far from the driving roller 10, a driven roller 12 is installed. A driven sprocket 20 is fixed on the roller shaft of the driven roller 12. A chain 18 is installed in a meshing manner between the driving sprocket 19 and the driven sprocket 20. A chain plate conveyor belt 13 is wound between the driving roller 10 and the driven roller 12. A first electromagnet 15 is installed corresponding to the driving roller 10 on the inner side of the chain plate conveyor belt 13. The two ends of the first electromagnet 15 are respectively connected to the inner wall surface of the iron removal shell 4. An iron discharge nozzle 6 is arranged at the bottom of the iron removal shell 4. A second electromagnet 17 is fixedly installed on the inner top surface of the bottom box 3. A slope plate 8 is arranged below the second electromagnet 17. Among them, the second electromagnet 17 forms a second iron removal structure. The control mode of the present invention is controlled by manually starting and closing a switch. The wiring diagram of the power element and the power supply belong to the common knowledge in the field. And the present invention is mainly used to protect mechanical devices, so the control mode and wiring layout of the present invention will not be explained in detail. In order to achieve the purpose of iron removal, the concrete stones added to the feeding hopper 2 need to be pre-crushed to separate the concrete stones from steel bars or iron impurities;

[0023] In one embodiment, a plurality of springs 9 are installed on the bottom surface of the slope plate 8 of the bottom box 3. A discharge port 7 is opened on the right end surface of the bottom box 3. The right end of the slope plate 8 extends to the outside of the bottom box 3 through the discharge port 7. Through the arrangement of the plurality of springs 9, the concrete stones can be elastically contacted with the slope plate 8, and the kinetic energy can be secondarily absorbed through the plurality of springs 9 of the slope plate 8 (a rubber pad is also attached to the surface of the slope plate 8), reducing the collision damage of the concrete fragments to the vertical cylinder 1 and the bottom box 3, and achieving the effect of extending the service life of the device.

[0024] In one embodiment, a guide inclined plate 11 is welded to the left side wall inside the vertical cylinder 1, and another guide inclined plate 11 is welded to the right side wall inside the vertical cylinder 1. The two guide inclined plates 11 have opposite inclination directions, and rubber gaskets 16 are pasted on the top surfaces of the two guide inclined plates 11. Through the two guide inclined plates 11 and the rubber gaskets 16 on their surfaces, the kinetic energy of the concrete blocks can be absorbed and the speed can be reduced.

[0025] In one embodiment, a support rod is transversely welded to the bottom of the guide inclined plate 11, and one end of the support rod is welded to the inner wall of the vertical cylinder 1. Through the arrangement of the support rod, the structural strength of the guide inclined plate 11 is increased.

[0026] In one embodiment, the dimensions of the driving roller 10 are the same as those of the driven roller 12, and the material of the electromagnet cylinder shell 14 of the driving roller 10 is a permanent magnet, that is, the dimensions of the driving roller 10 after installing the electromagnet cylinder shell 14 are the same as those of the driven roller 12, which is conducive to the installation of the chain plate conveyor belt 13. The electromagnet cylinder shell 14 and the first electromagnet 15 form the first iron removal structure.

[0027] In one embodiment, the cross-section of the feed hopper 2 is in a horn-shaped structure, and a rectangular opening is provided on the top surface of the feed hopper 2 to form a feeding port for concrete blocks through the rectangular opening.

[0028] Working principle:

[0029] In use, first, the concrete blocks crushed by the crusher are added to the feed hopper 2, and then the motor 5 on the outer surface of the iron removal shell 4 is started to work, prompting the output end of the motor 5 to drive the driving roller 10 to rotate. Since a chain 18 is installed between the driving sprocket 19 installed at the roller shaft of the driving roller 10 and the driven sprocket 20 installed at the roller shaft of the driven roller 12, the driving roller 10 and the driven roller 12 drive the chain plate conveyor belt 13 to rotate during the rotation process. When the concrete fragments falling from the feed hopper 2 reach the installation height of the iron removal shell 4, the broken steel bars mixed in the concrete fragments are within the adsorption range of the electromagnet cylinder shell 14 and the first electromagnet 15, and are adsorbed on the surface of the chain plate conveyor belt 13. As the chain plate conveyor belt 13 in the two iron removal shells 4 rotates, the broken steel bars that have left the adsorption range of the electromagnet cylinder shell 14 and the first electromagnet 15 automatically break away from the adsorption state with the chain plate conveyor belt 13 and are then discharged from the iron removal shell 4 through the iron discharge nozzle 6. During the continuous falling process of the concrete fragments, after contacting the rubber gasket 16 of the guide inclined plate 11, the kinetic energy is absorbed and decelerated, and then the kinetic energy is absorbed secondarily through the several springs 9 of the slope plate 8. The slope plate 8 provided in the bottom box 3 can use the second electromagnet 17 for secondary iron removal during the stage of conveying the concrete fragments until the concrete fragments are discharged from the discharge port 7 of the bottom box 3.

[0030] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for removing iron from raw materials of recycled concrete, comprising a vertical cylinder (1), characterized in that: The top of the vertical cylinder (1) is welded with a feed hopper (2), and the bottom of the vertical cylinder (1) is communicated with a bottom box (3). On the left and right sides of the upper part of the vertical cylinder (1), an iron removal shell (4) is respectively communicated. The outer surface of the iron removal shell (4) is fixedly installed with a motor (5). The output end of the motor (5) is fixed with a driving roller (10) through a coupling. A magnet attracting cylinder shell (14) is sleeved on the outer surface of the driving roller (10). A driving sprocket (19) is fixed on the roller shaft of the driving roller (10). At one end of the iron removal shell (4) far away from the driving roller (10), a driven roller (12) is installed. A driven sprocket (20) is fixed on the roller shaft of the driven roller (12). A chain (18) is installed in a meshing manner between the driving sprocket (19) and the driven sprocket (20). A chain plate conveyor belt (13) is wound and installed between the driving roller (l0) and the driven roller (12). A first electromagnet (15) is installed corresponding to the driving roller (10) on the inner side of the chain plate conveyor belt (13). The two ends of the first electromagnet (15) are respectively connected with the inner wall surface of the iron removal shell (4). An iron discharge nozzle (6) is arranged at the bottom of the iron removal shell (4). A second electromagnet (17) is fixedly installed on the inner top surface of the bottom box (3). A slope plate (8) is arranged below the second electromagnet (17).

2. The iron removal device for recycled concrete raw materials according to claim 1, characterized in that: A plurality of springs (9) are installed on the bottom surface of the slope plate (8) of the bottom box (3). A discharge port (7) is opened on the right end surface of the bottom box (3). The right end of the slope plate (8) extends to the outside of the bottom box (3) through the discharge port (7).

3. The iron removal device for recycled concrete raw materials according to claim 1, wherein: A guide inclined plate (11) is welded on the left side wall inside the vertical cylinder (1), and another guide inclined plate (11) is welded on the right side wall inside the vertical cylinder (1). The two guide inclined plates (11) have opposite inclination directions, and rubber gaskets (16) are pasted on the top surfaces of the two guide inclined plates (11).

4. The iron removal device for recycled concrete raw materials according to claim 3, characterized in that: A support rod is transversely welded at the bottom of the guide inclined plate (11), and one end of the support rod is welded with the inner wall of the vertical cylinder (1).

5. The iron removal device for recycled concrete raw materials according to claim 1, characterized in that: The driving roller (10) has the same size as the driven roller (12), and the magnet attracting cylinder shell (14) of the driving roller (10) is made of permanent magnet material.

6. The iron removal device for recycled concrete raw materials according to claim 1, characterized in that: The cross section of the feed hopper (2) is in a horn-shaped structure, and a rectangular opening is opened on the top surface of the feed hopper (2).

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