Impurity removal device for recycled building aggregate

Abstract

The utility model provides a recycled building aggregate impurity removal device which comprises a blanking funnel and a fan, the bottom of the blanking funnel is fixedly connected with a sedimentation pipe, the sedimentation pipe is sleeved with an impurity removal cylinder, the inner wall of the sedimentation pipe is provided with impurity passing openings which are communicated with the impurity removal cylinder and are evenly distributed in the circumferential direction, the impurity removal cylinder is communicated with the fan, and the fan is communicated with the sedimentation pipe. A transmission pipe is accommodated in the settling pipe, the transmission pipe is rotatably connected with the settling pipe, the upper part of the transmission pipe is fixedly sleeved with a shunting disc positioned above the impurity passing opening, and an air supplementing opening opposite to the impurity passing opening is formed in the peripheral wall of the transmission pipe. According to the utility model, the transmission pipe and the turntable are arranged in the sedimentation pipe, so that falling aggregate can be conveniently divided into a barrel-shaped descending state, then the impurity removal barrel is sleeved outside the sedimentation pipe, the impurity passing holes are formed in the transmission pipe, and when the impurity removal barrel generates suction force on the sedimentation pipe, circulating gas can be in full contact with the barrel-shaped descending aggregate, so that the impurity removal effect is improved. Therefore, the light impurities in the aggregate can be comprehensively cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of building aggregate impurity removal, in particular to a device for removing impurities from recycled building aggregate. Background Art

[0002] Recycled construction aggregates are construction waste that has been reprocessed to generate new aggregates for use. The recycled aggregates will contain a certain amount of light impurities and iron scraps, which will affect the reuse of the recycled aggregates. In order to make better use of the recycled aggregates, it is often necessary to remove the impurities in the recycled aggregates.

[0003] The utility model currently published with the publication number CN212663876U proposes a device for removing impurities from recycled building aggregates, which belongs to the technical field of construction machinery. It includes a feed hopper, a feed channel is connected at the outlet of the feed hopper, the other end of the feed channel is connected to the light impurity channel and the aggregate channel, a dispersion device is arranged in the feed channel, a fan is connected to the feed channel, the fan is located on the side away from the light impurity channel, and the fan is lower than the dispersion device, a pressure relief device is arranged on the light impurity discharge channel, and a first magnet group and a second magnet group are detachably connected in the aggregate discharge channel, and the first magnet group and the second magnet group are arranged up and down. The utility model has the effect of high-efficiency and continuous impurity removal.

[0004] However, the above-mentioned prior art still has the following deficiencies when used: 1. The fan is set to blow air from one side of the material discharge to blow away impurities in the aggregate, but the thickness of the aggregate increases during the falling process, that is, it is difficult for the wind to fully penetrate the aggregate, resulting in incomplete impurity removal; 2. The first magnet group and the second magnet group are too complicated, which makes it easy to form congestion in the aggregate channel and the impurity removal efficiency is low.

[0005] To this end, the utility model provides a device for removing impurities from recycled building aggregates. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model aims to provide a recycled building aggregate impurity removal device to solve the problems raised in the above-mentioned background technology. The utility model has the advantages of more thorough dust and impurity removal and simultaneously improves the impurity removal efficiency.

[0007] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a recycled building aggregate impurity removal device, including a feeding funnel and a fan, the bottom of the feeding funnel is fixedly connected with a sedimentation pipe, the outer sleeve of the sedimentation pipe is provided with an impurity removal cylinder, the inner wall of the sedimentation pipe is provided with impurity passing ports that are connected to the impurity removal cylinder and are evenly distributed in the circumferential direction, the impurity removal cylinder is connected with the fan, a transmission pipe is arranged in the sedimentation pipe, the transmission pipe and the sedimentation pipe are rotatably connected, the upper fixed sleeve of the transmission pipe is provided with a diverter plate located above the impurity passing port, and the outer peripheral wall of the transmission pipe is provided with an air supply port opposite to the impurity passing port.

[0008] Furthermore, the diverter plate is conical in shape with the small end facing upwards.

[0009] Furthermore, an annular docking cover is provided on the inner peripheral wall of the impurity removal barrel, and an exhaust pipe is fixedly connected to the top of the barrel, and the exhaust pipe is connected to the air inlet of the fan.

[0010] Furthermore, the top of the discharge funnel is fixedly connected to a portal frame, and the top of the portal frame is fixedly connected to a positioning sleeve sleeved on the outside of the transmission pipe.

[0011] Furthermore, a control motor is fixedly connected to the portal frame, an output shaft of the control motor is fixedly connected to a driving gear, and a passive gear meshing with the driving gear is fixedly sleeved on the transmission tube.

[0012] Furthermore, the outer peripheral wall of the settling pipe is fixedly connected with a circumferentially evenly distributed collecting pipe, and a magnet is placed inside the collecting pipe. The height of the magnet is lower than the height of the air supply port and one end of the magnet extends into the settling pipe.

[0013] Furthermore, a sealing cover is screwed on the free end of the collecting tube, and one end of the sealing cover is fixedly connected to the other end of the magnet.

[0014] The beneficial effects of the utility model are as follows:

[0015] 1. The utility model arranges a transmission pipe and a turntable in the settling pipe, so as to facilitate the diversion of the falling aggregate into a cylindrical descending state, and then sets a debris removal cylinder on the outside of the settling pipe, and a debris passing hole is opened on the transmission pipe. When the debris removal cylinder generates suction on the settling pipe, the circulating gas and the cylindrical descending aggregate can fully contact, so that the light impurities in the aggregate can be completely cleaned.

[0016] 2. The utility model arranges collecting tubes evenly distributed in the circumferential direction on the outer peripheral wall of the settling tube, and magnets are placed in the collecting tubes. One end of the magnets extends into the settling tube, and the cylindrical descending aggregates will pass through the magnets. The spacing between the magnets is irregular, so no resistance is caused to the descent of the aggregates.

[0017] 3. The utility model has a cover screwed on the free end of the collecting tube, and the cover is fixedly connected to one end of the magnet. When the cover is removed, the single magnet can be removed, that is, the magnets can be removed one by one to clean the adsorbed iron parts without stopping the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a device for removing impurities from recycled building aggregates according to the utility model;

[0019] Figure 2 for Figure 1 The enlarged schematic diagram of the part "a" in the middle;

[0020] Figure 3 It is a schematic diagram of a magnet explosion of a regenerated building aggregate impurity removal device of the utility model;

[0021] In the figure: 1. discharge funnel; 11. portal frame; 111. positioning sleeve; 2. fan; 3. sedimentation pipe; 31. impurity outlet; 32. collection pipe; 4. impurity removal cylinder; 41. annular docking cover; 42. exhaust pipe; 5. transmission pipe; 51. air supply port; 6. diverter plate; 7. control motor; 71. driving gear; 8. passive gear; 9. magnet; 101. sealing cover. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] See also Figures 1 to 3 The utility model provides a technical solution: a device for removing impurities from recycled building aggregates, comprising a feeding hopper 1 and a fan 2, wherein the feeding hopper 1 is used for containing aggregates that need to be removed impurities.

[0024] The bottom of the discharge funnel 1 is fixedly connected with a sedimentation pipe 3, which is fixedly installed on the external frame when in use, and the sedimentation pipe 3 is placed vertically. The external sleeve of the sedimentation pipe 3 is provided with a debris removal barrel 4, which is an annular barrel structure, and the inner wall of the sedimentation pipe 3 is provided with an impurity passing port 31 that is connected to the impurity removal barrel 4 and is evenly distributed in the circumferential direction. Specifically, the inner peripheral wall of the impurity removal barrel 4 is provided with an annular docking cover 41, and the inner peripheral wall here only refers to the inner peripheral wall of the impurity removal barrel 4. The annular docking cover 41 is close to the top of the impurity removal barrel 4, and the space enclosed by the annular docking cover 41 is opposite to the impurity passing port 31, and the space is connected to the inner cavity of the impurity removal barrel 4. The impurity removal barrel 4 is used to contain impurities in light impurities that cannot be extracted by wind.

[0025] The impurity removal barrel 4 is connected to the fan 2. Specifically, the top of the impurity removal barrel 4 is fixedly connected with an exhaust pipe 42, which is connected to the air inlet of the fan 2. The fan 2 plays the role of exhausting air outwards. The settling pipe 3 contains a transmission pipe 5, which plays the role of ventilation. The transmission pipe 5 is rotatably connected to the settling pipe 3. The upper fixed sleeve of the transmission pipe 5 is provided with a diverter plate 6 located above the impurity passing port 31. There is an annular material discharge gap between the diverter plate 6 and the settling pipe 3. When the transmission pipe 5 rotates, the diverter plate 6 rotates, and the aggregate is discharged evenly along the annular material discharge gap. Preferably, the diverter plate 6 is conical and the small end faces upward. The outer peripheral wall of the transmission pipe 5 is provided with an air supply port 51 opposite to the impurity passing port 31. When suction is generated in the impurity removal barrel 4, the external air enters through the air supply port 51 and passes through the surrounding aggregates, and then enters the impurity removal barrel 4 to achieve comprehensive impurity removal.

[0026] In this embodiment, the top of the discharge funnel 1 is fixedly connected to a portal frame 11, and the top of the portal frame 11 is fixedly connected to a positioning sleeve 111 sleeved on the outside of the transmission tube 5. Furthermore, the portal frame 11 is fixedly connected to a control motor 7, and the output shaft of the control motor 7 is fixedly connected to a driving gear 71. A passive gear 8 meshing with the driving gear 71 is fixedly sleeved on the transmission tube 5. After the control motor 7 is started, the transmission tube 5 is driven to rotate through the meshing cooperation of the driving gear 71 and the passive gear 8.

[0027] In this embodiment, the outer wall of the sedimentation tube 3 is fixedly connected to a collecting tube 32 that is evenly distributed in the circumferential direction. The collecting tube 32 is distributed along the radial direction of the sedimentation tube 3. A magnet 9 is placed in the collecting tube 32. The magnet 9 is rod-shaped and is also distributed along the radial direction of the sedimentation tube 3. The height of the magnet 9 is lower than the height of the air supply port 51 and one end of the magnet 9 extends into the sedimentation tube 3. The annularly settled aggregate will pass through the axially evenly distributed magnet 9 when it descends. The magnet 9 will attract the iron blocks in the aggregate. Since the space between the magnets 9 is fan-shaped, it will not affect the descending speed of the aggregate. At the same time, the circumferentially evenly distributed magnet 9 can also effectively absorb the iron blocks.

[0028] Furthermore, a cover 101 is screwed on the free end of the collecting tube 32, and one end of the cover 101 is fixedly connected to the other end of the magnet 9. When the cover 101 is unscrewed, the corresponding magnet 9 can be taken out, and other magnets 9 can normally absorb iron blocks. This arrangement is convenient for cleaning away iron blocks on the magnet 9 and will not affect the normal impurity removal of the aggregate.

[0029] When using this device, the aggregate to be removed is placed into the discharge hopper 1, and then the control motor 7 is started, the transmission pipe 5 rotates, the diverter plate 6 rotates, and the aggregate descends along the annular gap between the diverter plate 6 and the sedimentation tube 3. The fan 4 is started, and the impurity removal cylinder 4 generates wind suction to the impurity port 31 through the annular docking cover 41. The external air will enter through the transmission pipe 5 and then be discharged through the air supply port 51. The discharged air passes through the inside of the descending aggregate and then enters the impurity removal cylinder 4 to achieve the treatment of light impurities. When the aggregate that continues to descend passes through the magnet 9, the iron blocks in the aggregate will be adsorbed by the magnet 9 to achieve the iron block removal treatment. In order to avoid affecting the speed of the aggregate descent, the single cover 101 is removed at a fixed time, and then the single magnet 9 is separated, and the iron blocks on the magnet 9 are cleaned off and the cover 101 is reset. At this time, it will not affect the normal impurity removal treatment in the sedimentation tube 3.

[0030] 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 device for removing impurities from recycled building aggregates, comprising a feeding hopper (1) and a fan (2), characterized in that: The bottom of the discharge hopper (1) is fixedly connected to a sedimentation pipe (3), the outer sleeve of the sedimentation pipe (3) is provided with a debris removal cylinder (4), the inner wall of the sedimentation pipe (3) is provided with debris passing openings (31) which are connected to the debris removal cylinder (4) and are evenly distributed in the circumferential direction, the debris removal cylinder (4) is connected to the fan (2), a transmission pipe (5) is arranged inside the sedimentation pipe (3), the transmission pipe (5) and the sedimentation pipe (3) are rotatably connected, the upper fixed sleeve of the transmission pipe (5) is provided with a diverter plate (6) located above the debris passing opening (31), and the outer peripheral wall of the transmission pipe (5) is provided with an air supply opening (51) opposite to the debris passing opening (31).

2. The device for removing impurities from recycled building aggregate according to claim 1, characterized in that: The diverter plate (6) is conical in shape with the small end facing upwards.

3. The device for removing impurities from recycled building aggregate according to claim 1, characterized in that: The inner peripheral wall of the impurity removal cylinder (4) is provided with an annular docking cover (41), and the top of the cylinder is fixedly connected with an exhaust pipe (42), and the exhaust pipe (42) is connected to the air inlet of the fan (2).

4. The device for removing impurities from recycled building aggregate according to claim 1, characterized in that: The top of the discharge hopper (1) is fixedly connected to a portal frame (11), and the top of the portal frame (11) is fixedly connected to a positioning sleeve (111) sleeved on the outside of the transmission pipe (5).

5. The device for removing impurities from recycled building aggregate according to claim 4, characterized in that: The door frame (11) is fixedly connected to a control motor (7), an output shaft of the control motor (7) is fixedly connected to a driving gear (71), and a passive gear (8) meshing with the driving gear (71) is fixedly sleeved on the transmission tube (5).

6. The device for removing impurities from recycled building aggregate according to claim 1, characterized in that: The outer peripheral wall of the settling pipe (3) is fixedly connected to a circumferentially evenly distributed collecting pipe (32), and a magnet (9) is placed inside the collecting pipe (32). The height of the magnet (9) is lower than the height of the air supply port (51) and one end of the magnet (9) extends into the settling pipe (3).

7. The device for removing impurities from recycled building aggregates according to claim 6, characterized in that: A sealing cover (101) is screwed onto the free end of the collecting tube (32), and one end of the sealing cover (101) is fixedly connected to the other end of the magnet (9).

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