A powered shuttle fabric distributor exhaust device and system

Abstract

The utility model discloses a kind of powered shuttle type distributor exhaust device and system thereof. The powered shuttle type distributor exhaust device includes shuttle type distributor dust hood, sintering machine exhaust hood and at least two air draft devices, shuttle type distributor dust hood cover is located at the outside of shuttle type distributor, sintering machine exhaust hood is sealingly installed above sintering machine material surface, the air draft device includes first air draft pipe, air drafter and second air draft pipe sequentially sealingly connected, valve is installed in second air draft pipe, first air draft pipe and second air draft pipe are sealingly connected with shuttle type distributor dust hood and sintering machine exhaust hood respectively, air drafter and the first air draft pipe and the second air draft pipe on its two sides are all detachably connected. The powered shuttle type distributor exhaust device, by setting at least two air draft devices, at least two air draft devices are in the form of one use and one spare, even if one fan wheel is adhered due to containing steam, normal production will not be affected, in addition, effective control shuttle type distributor discharges dust-containing steam can be realized, and it is high in safety.

Description

Technical Field

[0001] This utility model relates to the field of sintering auxiliary equipment technology, and in particular to a powered shuttle feeder exhaust device and its system. Background Technology

[0002] The shuttle feeder in the sintering system generates a large amount of steam when feeding the mixing bins back and forth. This steam can lead to low visibility in the workshop in winter and high temperatures in the workshop in summer, posing a significant safety hazard. Furthermore, the generated steam contains a large amount of dust, which does not meet ultra-low emission requirements.

[0003] For exhaust dust removal in shuttle feeder systems, the following are the main solutions currently available: (1) Direct discharge, but does not meet the current ultra-low emission requirements; (2) A steam exhaust fan is installed in the shuttle feeder layer to send the dust-containing steam discharged from the shuttle feeder into the sintering material surface layer. This method makes the exhaust fan impeller prone to sticking, causing the impeller to vibrate and stop, which in turn affects the exhaust of the shuttle feeder system. Utility Model Content

[0004] The main purpose of this utility model is to provide a powered shuttle fabric distributor exhaust device and system, which aims to solve the problem of the exhaust operation of the shuttle fabric distributor system being affected by the adhesion of the exhaust fan impeller.

[0005] To achieve the above objectives, this utility model provides a powered shuttle feeder exhaust device, comprising a shuttle feeder dust collection hood, a sintering machine exhaust hood, and at least two induced draft devices connecting the two, wherein... The dust collection hood of the shuttle fabric feeder is installed on the outside of the shuttle fabric feeder, and the exhaust hood of the sintering machine is sealed and installed above the material surface of the sintering machine. The air induced device includes a first air induced pipe, an air induced fan and a second air induced pipe that are sealed and connected in sequence. A valve is installed inside the second air induced pipe. The first air induced pipe and the second air induced pipe are respectively sealed and connected to the dust collection hood of the shuttle fabric feeder and the exhaust hood of the sintering machine. The air induced fan and the first air induced pipe and the second air induced pipe on both sides can be detachably connected.

[0006] Preferably, both the first and second exhaust pipes include a transition section and a straight pipe section. The transition section is configured with a variable cross-section and is used to connect to the dust collection hood of the shuttle feeder or the exhaust hood of the sintering machine. The larger end of the transition section is positioned towards the side of the dust collection hood of the shuttle feeder or the exhaust hood of the sintering machine.

[0007] Preferably, the bottom wall of the straight section of the first and second air ducts is inclined.

[0008] Preferably, the inclination angle of the bottom wall of the straight section of the first and second air ducts relative to the horizontal plane is 3° to 5°.

[0009] Preferably, at least two shuttle cloth feeder dust hoods are welded above the shuttle cloth feeder, and at least two sintering machine exhaust hoods are welded above the sintering machine.

[0010] Preferably, the exhaust device for the powered shuttle fabric distributor further includes a dust removal device located on the first or second exhaust pipe.

[0011] Preferably, the dust removal device includes a dust removal box, multiple spray heads installed inside the dust removal box, multiple rotatable baffles located inside the dust removal box, and spray pipes connected to the multiple spray heads. The tilt angle of rotation can be adjusted according to the dust concentration. Below the dust removal box is a ash hopper, and the bottom of the ash hopper is used to connect to the discharge pipeline.

[0012] Preferably, an inlet dust concentration detector is also installed at the inlet of the dust collector, and a baffle is fitted onto the connecting shaft. The connecting shaft is connected to an electric drive mechanism to drive the connecting shaft to rotate, thereby driving the baffle to adjust the tilt angle.

[0013] Preferably, an outlet dust concentration detector is also installed at the outlet of the dust collection box.

[0014] This utility model also proposes a powered shuttle fabric distributor exhaust system, including the aforementioned powered shuttle fabric distributor exhaust device, and a circulation system connected to the dust hopper of the dust removal device of the powered shuttle fabric distributor exhaust device.

[0015] The exhaust device for the powered shuttle fabric distributor proposed in this utility model has the following beneficial effects: 1. By setting up at least two induced draft devices, with one in use and one on standby, even if one induced draft fan stops due to adhesion, the other induced draft device can be activated, thus not affecting normal production. 2. The exhaust device of this powered shuttle distributor, by setting valves, can effectively control the emission of dust-containing steam from the shuttle distributor. On the other hand, it has high safety and can be flexibly adjusted according to actual conditions. It can meet the requirements of low initial investment, reduce system operation failures, and ensure smooth production.

[0016] 3. The exhaust device of this powered shuttle fabric distributor has the advantages of simple structure, reliable operation and easy implementation. Attached Figure Description

[0017] Figure 1 This is a top view of the exhaust device of the powered shuttle feeder of this utility model on one side of the sintering machine. Figure 2 This is a cross-sectional view of the exhaust device of the powered shuttle feeder of this utility model on one side of the sintering machine. Figure 3 This is a schematic diagram of the dust removal device in the exhaust device of the powered shuttle fabric distributor of this utility model; Figure 4 This is a schematic diagram of the exhaust device of the powered shuttle fabric distributor on one side of the fabric distributor.

[0018] In the diagram, 1. Sintering machine sealing cover; 2. Sintering machine exhaust hood; 3. Transition section; 4. Exhaust fan; 5. Valve; 6. Straight pipe section; 7. Inlet dust concentration detector; 8. Dust collector housing; 9. Spray head; 10. Spray pipe; 11. Outlet dust concentration detector; 12. Baffle; 13. Connecting shaft; 14. Ash hopper; 15. Discharge pipeline; 16. Support rod; 17. Support base plate; 18. Shuttle feeder; 19. Shuttle feeder sealing cover; 20. Shuttle feeder dust suction hood; 21. First exhaust pipe; 22. Second exhaust pipe.

[0019] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0021] It should be noted that in the description of this utility model, the terms "lateral," "longitudinal," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] This utility model proposes a steam exhaust device for a powered shuttle fabric distributor.

[0023] Reference Figures 1 to 4 (The arrows in the diagram indicate the direction of exhaust steam.) In this preferred embodiment, a powered shuttle feeder exhaust device includes a shuttle feeder dust hood 20, a sintering machine exhaust hood 2, and at least two induced draft devices connecting the two. The shuttle feeder dust hood 20 is installed on the outside of the shuttle feeder, and the sintering machine exhaust hood 2 is sealed and installed above the material surface of the sintering machine. The air induced device includes a first air induced pipe 21, an induced fan 4, and a second air induced pipe 22 that are sealed and connected in sequence. A valve 5 (which can be a manual valve) is installed inside the second air induced pipe 22. The first air induced pipe 21 and the second air induced pipe 22 are respectively sealed and connected to the shuttle feeder dust hood 20 and the sintering machine exhaust hood 2. The induced fan 4 and the first air induced pipe 21 and the second air induced pipe 22 on both sides can be detachably connected.

[0024] Reference Figure 4 The shuttle fabric feeder has an outer cover with a shuttle fabric feeder sealing cover 19, and a shuttle fabric feeder dust suction cover 20 is installed on top of the shuttle fabric feeder sealing cover 19. (Refer to...) Figure 1 The sintering machine is equipped with a sintering machine sealing cover 1 on its outer casing, and a sintering machine exhaust cover 2 is sealed and installed on top of the sintering machine sealing cover 1. Both the shuttle feeder dust hood 20 and the sintering machine exhaust cover 2 are welded from steel plates. The airflow of the induced draft fan 4 can be adjusted according to the size of the shuttle feeder. At least two induced draft devices are used, one in operation and one on standby. When one induced draft fan 4 vibrates due to dust adhesion, the corresponding valve 5 can be closed, the induced draft fan 4 can be removed for cleaning, and simultaneously the induced draft fan 4 and corresponding valve 5 of the other induced draft device can be opened, allowing maintenance to be completed without shutting down the system.

[0025] Specifically, in this embodiment, referring to Figure 1 Both the first exhaust pipe 21 and the second exhaust pipe 22 include a transition section 3 and a straight pipe section 6. The transition section 3 has a variable cross-section and is used to connect to the shuttle feeder dust hood 20 or the sintering machine exhaust hood 2. The larger end of the transition section 3 faces the shuttle feeder dust hood 20 or the sintering machine exhaust hood 2. The transition section 3 can be a round-top, square-bottom pipe. The transition section 3 is welded to both the shuttle feeder dust hood 20 and the sintering machine exhaust hood 2 to achieve a sealed connection. Using the transition section 3 facilitates the rapid extraction of steam-containing dust from the top of the shuttle feeder.

[0026] Furthermore, the bottom wall of the straight section 6 of the first air duct 21 and the second air duct 22 is inclined.

[0027] Because steam-containing dust will condense during the conveying process, the straight pipe sections 6 of the first exhaust pipe 21 and the second exhaust pipe 22 are inclined to effectively prevent the condensate from accumulating locally. Preferably, the inclination angle of the inner bottom wall of the straight pipe section 6 of the first exhaust pipe 21 and the second exhaust pipe 22 relative to the horizontal plane is 3°~5°.

[0028] In this embodiment, at least two shuttle feeder dust hoods 20 are welded above the shuttle feeder, and at least two sintering machine exhaust hoods 2 are welded above the sintering machine. Adjacent shuttle feeder dust hoods 20 are connected by flanges.

[0029] Furthermore, the exhaust device for the powered shuttle distributor also includes a dust removal device located on the first induced draft pipe 21 or the second induced draft pipe 22. The steam-containing dust generated by the shuttle distributor can be treated by the dust removal device to prevent excessive dust from adhering to the fan impeller, thus avoiding equipment malfunction.

[0030] Reference Figure 3 This embodiment presents a specific structure for a dust removal device: the dust removal device includes a dust removal box 8, multiple spray heads 9 installed inside the dust removal box 8, multiple rotatable baffles 12 located inside the dust removal box 8, and spray pipes 10 connected to the multiple spray heads 9. The tilt angle of rotation can be adjusted according to the dust concentration. Below the dust removal box 8 is a dust hopper 14, and the lower part of the dust hopper 14 is used to connect to a discharge pipe 15. The discharge pipe can discharge to a mixer for re-mixing and sintering.

[0031] Furthermore, referring to Figure 3 An inlet dust concentration detector 7 is installed at the inlet of the dust collector 8. A baffle 12 is fitted onto a connecting shaft 13, which is connected to an electric drive mechanism to drive the shaft 13 to rotate, thereby adjusting the tilt angle of the baffle 12. An outlet dust concentration detector 11 is installed at the outlet of the dust collector 8. The electric drive mechanism adjusts its tilt angle according to the concentration detected by the inlet dust concentration detector 7 via a controller. A support rod 16 is provided at the bottom of the dust collector 8 for support.

[0032] The working process of this dust removal device is as follows: After the dust-laden gas above the shuttle cloth enters the dust removal device through the first duct 21, the spray head 9 connected to the spray pipe 10 starts spraying water. The dust in the dust-laden gas begins to settle into the ash hopper 14 along with the sprayed water, and is discharged into the mixer for recycling through the drainage pipe below the ash hopper 14. The upper dust removal box 8 is equipped with an electrically adjustable baffle 12. When the dust concentration difference between the inlet and outlet is small, the tilt angle of the baffle 12 can be adjusted to increase the air duct resistance in the air box, thereby increasing the residence time of the dust-laden gas and allowing more dust to settle with the sprayed water.

[0033] The operation of the exhaust system for the powered shuttle feeder is as follows: Power is provided by the induced draft fan 4 to guide the exhaust steam from the shuttle feeder to the sintering machine exhaust hood 2 above the sintering machine, and finally to the material surface layer of the sintering machine. Because the inlet of the induced draft fan 4 is equipped with a valve 5, valve 5 can be closed for maintenance or replacement of the fan. At this time, another parallel induced draft device can be used to achieve induced draft, thus avoiding disruption to normal production. The air velocity inside the induced draft duct is controlled at 16-20 m / s.

[0034] The exhaust device for the powered shuttle fabric distributor proposed in this embodiment has the following beneficial effects: 1. By setting up at least two induced draft devices, with one in use and one on standby, even if one of the induced draft fans 4 stops due to adhesion, the other induced draft device can be activated, thus not affecting normal production. 2. The exhaust device of this powered shuttle distributor, by setting valve 5, can effectively control the emission of dust-containing steam from the shuttle distributor. On the other hand, it has high safety and can be flexibly adjusted according to actual conditions. It can meet the requirements of low initial investment, reduce system operation failures, and ensure smooth production.

[0035] 3. The exhaust device of this powered shuttle fabric distributor has the advantages of simple structure, reliable operation and easy implementation.

[0036] This utility model also proposes a power shuttle fabric feeder exhaust system.

[0037] In this preferred embodiment, a powered shuttle distributor exhaust system includes a powered shuttle distributor exhaust device and a circulation system connected to the dust collector hopper 14 of the powered shuttle distributor exhaust device. The circulation system sends the wastewater discharged from the dust collector hopper 14 to a mixer for remixing and use in sintering. The specific structure and beneficial effects of the powered shuttle distributor exhaust device are the same as those in the above embodiment and will not be repeated here.

[0038] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A powered shuttle fabric distributor exhaust device, characterized in that, It includes a shuttle feeder dust hood, a sintering machine exhaust hood, and at least two exhaust fans connecting the two, wherein, The dust collection hood of the shuttle fabric feeder is installed on the outside of the shuttle fabric feeder, and the exhaust hood of the sintering machine is sealed and installed above the material surface of the sintering machine. The air induced device includes a first air induced pipe, an air induced fan and a second air induced pipe that are sealed and connected in sequence. A valve is installed inside the second air induced pipe. The first air induced pipe and the second air induced pipe are respectively sealed and connected to the dust collection hood of the shuttle fabric feeder and the exhaust hood of the sintering machine. The air induced fan and the first air induced pipe and the second air induced pipe on both sides can be detachably connected.

2. The exhaust device for a powered shuttle fabric distributor as described in claim 1, characterized in that, Both the first and second exhaust pipes include a transition section and a straight pipe section. The transition section is configured with a variable cross-section and is used to connect to the dust collection hood of the shuttle feeder or the exhaust hood of the sintering machine. The larger end of the transition section is set towards the side of the dust collection hood of the shuttle feeder or the exhaust hood of the sintering machine.

3. The exhaust device for a powered shuttle fabric distributor as described in claim 1, characterized in that, The bottom walls of the straight sections of the first and second air intake pipes are inclined.

4. The exhaust device for a powered shuttle fabric distributor as described in claim 3, characterized in that, The inclination angle of the bottom wall of the straight section of the first and second air intake pipes relative to the horizontal plane is 3°~5°.

5. The exhaust device for a powered shuttle fabric distributor as described in claim 1, characterized in that, At least two shuttle cloth feeder dust hoods are welded above the shuttle cloth feeder, and at least two sintering machine exhaust hoods are welded above the sintering machine.

6. The exhaust device for a powered shuttle fabric distributor as described in any one of claims 1 to 5, characterized in that, It also includes a dust removal device located on the first or second exhaust duct.

7. The exhaust device for a powered shuttle fabric distributor as described in claim 6, characterized in that, The dust removal device includes a dust removal box, multiple spray heads installed inside the dust removal box, multiple rotatable baffles located inside the dust removal box, and spray pipes connected to the multiple spray heads. The tilt angle of rotation can be adjusted according to the dust concentration. Below the dust removal box is a ash hopper, and the bottom of the ash hopper is used to connect to the discharge pipeline.

8. The exhaust device for a powered shuttle fabric distributor as described in claim 7, characterized in that, An inlet dust concentration detector is also installed at the inlet of the dust collector. A baffle is fitted onto a connecting shaft, which is connected to an electric drive mechanism to drive the connecting shaft to rotate and thus adjust the tilt angle of the baffle.

9. The exhaust device for a powered shuttle fabric distributor as described in claim 7, characterized in that, An outlet dust concentration detector is also installed at the outlet of the dust collection box.

10. A powered shuttle fabric distributor exhaust system, characterized in that, The device includes the exhaust device for the powered shuttle fabric distributor as described in claim 7, and also includes a circulation system connected to the dust hopper of the dust removal device of the powered shuttle fabric distributor exhaust device.

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