Material flow regulating device and blast furnace equipment

Abstract

The embodiment of the present invention provides a material flow regulating device and blast furnace equipment, which belongs to the technical field of blast furnace equipment. The material flow regulating device includes: a valve body, which has a feed channel running through its upper and lower ends; a plurality of valve plates, which are respectively provided on the valve body and evenly arranged around the circumference of the feed channel; a driving component, which includes a driving member and a transmission mechanism respectively connected to each valve plate, and the driving member can drive the multiple valve plates to perform linear motion in the same plane at the same time through the transmission mechanism, so that the multiple valve plates are synchronously moved toward the center of the feed channel to close the feed channel or respectively move away from the center of the feed channel to open the feed channel. The structure of the material flow regulating device is compact, and the height can be significantly reduced, which is conducive to reducing production costs; at the same time, because its valve plates perform planar motion, it can effectively prevent material flow segregation.

Description

Technical Field

[0001] The present invention belongs to the technical field of regulating valves, and in particular relates to a material flow regulating device and blast furnace equipment. Background Art

[0002] In the field of blast furnace smelting technology, the main function of the material flow control cross-section adjustment device is to control the uniform distribution of charge from the hopper to the material tank and from the material tank to the furnace according to process requirements. It controls the opening of the adjustment device's valve plate, thereby controlling the size and speed of the material flow.

[0003] However, the structural dimensions of the material flow control section adjustment device of the blast furnace bell-less top charging equipment in the existing technology are relatively high, and the general height is at least 1500mm, which makes the overall height of the blast furnace bell-less top charging equipment relatively high. The increase in the height of the equipment on the blast furnace platform greatly increases the construction cost of the blast furnace.

[0004] In addition, in some projects where bell-type furnace top charging equipment is transformed into bell-free furnace top charging equipment, due to the limitations of the height of the original furnace top inclined bridge and the height of the belt conveyor, many projects have to sacrifice the volume of the material tank (and blast furnace output) to ensure functionality.

[0005] In addition, the existing material flow control section adjustment devices are mainly divided into inner and outer hemispherical melon-shaped split types and parallel curved arm split types. These types of material flow control section adjustment devices will not only cause segregation of the charge entering the blast furnace, but also the overall height is too high. Summary of the Invention

[0006] In view of the above-mentioned problems existing in the prior art, an object of the embodiments of the present invention is to provide a material flow regulating device and blast furnace equipment with a compact structure.

[0007] The technical solution adopted in the embodiment of the present invention is:

[0008] A material flow regulating device, comprising:

[0009] The valve body has a feed channel running through the upper and lower ends thereof;

[0010] a plurality of valve plates, which are respectively provided on the valve body and are evenly arranged around the circumference of the feed channel;

[0011] A driving component includes a driving member and a transmission mechanism respectively connected to each valve plate. The driving member can drive multiple valve plates to perform linear motion in the same plane at the same time through the transmission mechanism, so that the multiple valve plates are respectively moved toward the center of the feed channel to close the feed channel or respectively moved away from the center of the feed channel to open the feed channel.

[0012] Furthermore, the multiple valve plates can jointly form a feed port in a regular polygon coaxial with the feed channel when they respectively move toward the center of the feed channel to close the feed channel or move away from the center of the feed channel to open the feed channel, and the inner diameter of the feed port gradually decreases as the multiple valve plates move toward the center of the feed channel or gradually increases as the multiple valve plates move away from the center of the feed channel.

[0013] Furthermore, each valve plate has a first side wall surface and a second side wall surface that are connected to each other. When the multiple valve plates move toward or away from the center of the feed channel, the first side wall surface of one of the two adjacent valve plates can fit and slide relative to the second side wall surface of the other valve plate, so that the multiple valve plates are connected in sequence and together form the feed port.

[0014] Furthermore, the valve body is a hollow cylinder, the feed channel passes through both ends of the valve body in the axial direction, and the material flow regulating device also includes a sleeve fixed at the entrance of the feed channel, and the sleeve is used to receive the material and gather the material into the feed channel.

[0015] Furthermore, the material flow regulating device further comprises:

[0016] A plurality of guide rods are respectively arranged in the valve body and around the circumference of the feed channel, each of the guide rods extends in the radial direction of the feed channel, and the plurality of guide rods are slidingly connected to the plurality of valve plates in a one-to-one correspondence. In the process of the plurality of valve plates approaching the center of the feed channel or moving away from the center of the feed channel, the plurality of valve plates can slide along their corresponding guide rods, so that the plurality of valve plates can make linear motion in the same plane at the same time.

[0017] Furthermore, the driving member is a driving motor, the motor shaft of the driving motor is connected to the driving gear, and the transmission mechanism includes:

[0018] a first slewing bearing disposed within the valve body and coaxially with the feed channel, wherein an inner ring of the first slewing bearing is fixed to the valve body, and the driving gear is engaged with an outer ring of the slewing bearing to drive the outer ring of the first slewing bearing to rotate;

[0019] An annular plate is fixed on the outer ring of the first slewing bearing and rotates synchronously with the outer ring of the first slewing bearing. The annular plate is coaxial with the outer ring of the slewing bearing. A planar spiral track is provided on the plate surface of the annular plate. Each of the valve plates is respectively provided with a planar spiral tooth adapted to the planar spiral track, so that when the outer ring of the first slewing bearing rotates, the multiple valve plates can simultaneously move toward or away from the center of the feed channel under the guidance of the guide rod.

[0020] Furthermore, the driving member is a first driving hydraulic cylinder, and the transmission mechanism includes:

[0021] a plurality of first sliders, each of which is fixed on the plurality of valve plates in a one-to-one correspondence;

[0022] A plurality of first guide rails are fixed one-to-one on the plurality of valve plates, the first slider on one of the two adjacent valve plates is slidably connected to the first guide rail on the other valve plate, the piston rod of the first driving hydraulic cylinder is connected to one of the plurality of valve plates, and is used to drive the valve plate to slide along its corresponding guide rod, and make the plurality of valve plates simultaneously move toward or away from the center of the feed channel.

[0023] Furthermore, the driving member is a second driving hydraulic cylinder, and the transmission mechanism includes:

[0024] a second slewing bearing, which is disposed within the valve body and coaxially with the feed channel, wherein an inner ring of the second slewing bearing is fixed to the valve body;

[0025] Multiple racks are respectively arranged in one-to-one correspondence with the multiple valve plates, the first end of each rack is respectively engaged with the outer ring of the second slewing bearing, the second end of each rack is respectively fixedly connected to the corresponding valve plate, and the piston rod of the second driving hydraulic cylinder is connected to one of the valve plates, which is used to drive the valve plate to drive the rack connected thereto to move and drive the outer ring of the second slewing bearing to rotate.

[0026] Furthermore, the material flow regulating device further comprises:

[0027] A plurality of guide seats are respectively arranged in the valve body and around the circumference of the feed channel, and the plurality of racks are respectively and slidably arranged on the plurality of guide seats in a one-to-one correspondence.

[0028] A blast furnace equipment comprises a material flow regulating device according to any one of the above embodiments.

[0029] Compared with the prior art, the embodiments of the present invention have the following advantages:

[0030] Compared with the traditional inner and outer hemispherical melon-shaped split-type material flow regulating device and the parallel curved arm split-type material flow regulating device, the material flow regulating device provided by the embodiment of the present invention has multiple valve plates arranged horizontally around the feed channel in the valve body, and the driving member can drive the multiple valve plates to move linearly at the same time in the same plane to close the feed channel or open the feed channel. The structure of the material flow regulating device is compact and the height can be significantly reduced, which is conducive to reducing production and construction costs and can effectively avoid material flow segregation. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic structural diagram of a first material flow regulating device according to an embodiment of the present invention;

[0032] Figure 2 This is a schematic structural diagram of a valve body in a first material flow regulating device according to an embodiment of the present invention;

[0033] Figure 3 This is a schematic diagram of the assembly structure of a first driving component and multiple valve plates according to an embodiment of the present invention;

[0034] Figure 4 This is a schematic structural diagram of a closed feed channel in a first material flow regulating device according to an embodiment of the present invention;

[0035] Figure 5 This is a schematic structural diagram of the feed channel being opened in the first material flow regulating device according to an embodiment of the present invention;

[0036] Figure 6 This is a schematic structural diagram of a first driving component according to an embodiment of the present invention;

[0037] Figure 7 This is a schematic structural diagram of an annular plate according to an embodiment of the present invention;

[0038] Figure 8 This is a schematic structural diagram of a first valve plate according to an embodiment of the present invention;

[0039] Figure 9 This is a schematic structural diagram of a second material flow regulating device according to an embodiment of the present invention;

[0040] Figure 10 This is a schematic structural diagram of a valve body in a second material flow regulating device according to an embodiment of the present invention;

[0041] Figure 11 This is a schematic diagram of the assembly structure of a second driving component and multiple valve plates according to an embodiment of the present invention;

[0042] Figure 12 This is a schematic structural diagram of a second material flow regulating device according to an embodiment of the present invention in which the feed channel is closed;

[0043] Figure 13This is a schematic structural diagram of the feed channel being opened in the second material flow regulating device according to an embodiment of the present invention;

[0044] Figure 14 This is a schematic structural diagram of a second valve plate according to an embodiment of the present invention;

[0045] Figure 15 This is a schematic diagram of the movement of multiple valve plates in the second material flow regulating device according to an embodiment of the present invention;

[0046] Figure 16 This is a schematic structural diagram of a third material flow regulating device according to an embodiment of the present invention;

[0047] Figure 17 This is a schematic structural diagram of a valve body in a third material flow regulating device according to an embodiment of the present invention;

[0048] Figure 18 This is a schematic diagram of the assembly structure of a third driving component and multiple valve plates according to an embodiment of the present invention;

[0049] Figure 19 This is a schematic structural diagram of a third material flow regulating device according to an embodiment of the present invention, in which the feed channel is closed;

[0050] Figure 20 This is a schematic structural diagram of the feed channel being opened in the third material flow regulating device according to an embodiment of the present invention;

[0051] Figure 21 This is a schematic structural diagram of a third valve plate according to an embodiment of the present invention;

[0052] Figure 22 Schematic diagram of the assembly structure of the third valve plate and rack according to an embodiment of the present invention.

[0053] In the figure: 1-valve body; 10-feed channel; 2-valve plate; 21-first side wall; 22-second side wall; 23-guide hole; 24-plane helical tooth; 25-rib plate; 3-driving component; 301-driving member; 302-driving gear; 303-first slewing bearing; 304-annular plate; 305-plane helical track; 306-first slider; 307-first slide rail; 308-second slider; 309-second slewing bearing; 310-rack; 4-bushing; 5-feed port; 6-guide rod; 7-guide seat; 8-flange. DETAILED DESCRIPTION

[0054] In order to enable those skilled in the art to better understand the technical solutions of the embodiments of the present invention, the present invention is described in detail below with reference to the accompanying drawings and specific implementation methods.

[0055] like Figure 1 、 Figure 9 as well as Figure 16As shown, an embodiment of the present invention provides a material flow regulating device, which mainly includes a valve body 1, a driving component and a plurality of valve plates 2 respectively arranged on the valve body 1.

[0056] The valve body 1 has a feed channel 10 extending through the upper and lower ends thereof. A plurality of valve plates 2 are respectively arranged on the valve body 1 and are arranged around the circumference of the feed channel 10 .

[0057] The driving component includes a driving member 301 and a transmission mechanism connected to each valve plate 2. The driving member 301 can drive the multiple valve plates 2 to simultaneously perform linear motion in the same plane through the transmission mechanism, so that the multiple valve plates 2 are respectively moved toward the center of the feed channel 10 to close the feed channel 10 or away from the center of the feed channel 10 to open the feed channel 10.

[0058] Compared with the traditional inner and outer hemispherical melon-shaped split-type flow regulating device and the parallel curved arm split-type flow regulating device, the flow regulating device provided in this embodiment has multiple valve plates 2 arranged around the feed channel 10 in the valve body 1, and the driving member 301 can drive the multiple valve plates 2 to move linearly at the same time in the same plane to close the feed channel 10 or open the feed channel 10. The structure of the flow regulating device is compact and the height can be significantly reduced, which is conducive to reducing production costs.

[0059] The material flow regulating device of this embodiment can be applied to equipment such as blast furnaces. By controlling the charge entering the blast furnace through the material flow regulating device, the construction cost of taller buildings such as blast furnaces can be significantly reduced, and space can be greatly saved for blast furnace renovation projects.

[0060] like Figure 2 、 Figure 10 as well as Figure 17 As shown, in some embodiments, multiple valve plates 2 can form a regular polygonal feed port 5 in the feed channel 10 in the process of respectively moving toward the center of the feed channel 10 and respectively moving away from the center of the feed channel 10. The axis of the feed port 5 is collinear with the axis of the feed channel 10. The regular polygonal feed port 5 can effectively prevent segregation of charge entering the blast furnace through the feed channel 10.

[0061] It should be noted that the multiple valve plates 2 of this embodiment can begin to form the feed port 5 when they approach the center of the feed channel 10 to a preset position, and the feed port 5 is closed when the feed channel 10 is closed.

[0062] At the same time, the plurality of valve plates 2 will also form a feed port 5 when they are away from the center of the feed channel 10 to the preset position, until the feed channel 10 is fully opened and the feed port 5 is also fully opened. Figure 4 and Figure 5 ,or Figure 12 and Figure 13 ,or Figure 19 and Figure 20 .

[0063] Furthermore, the inner diameter of the feed port 5 of this embodiment will gradually shrink as the multiple valve plates 2 approach the center of the feed channel 10 until the feed channel 10 is completely closed; the inner diameter of the feed port 5 will gradually increase as the multiple valve plates 2 move away from the center of the feed channel 10 until the feed channel 10 is completely opened, thereby ensuring that the charge entering the blast furnace tends to be uniform, preventing charge segregation, and ensuring stable operation of the blast furnace.

[0064] The shape of the feed port 5 of this embodiment can be a regular quadrilateral or a regular hexagon, etc., which can be determined according to the number of valve plates 2. Figure 2 、 Figure 10 as well as Figure 17 As shown, when there are four valve plates 2, the shape of the feed port 5 is square.

[0065] like Figure 8 、 Figure 14 as well as Figure 21 As shown, in some embodiments, each valve plate 2 has a first side wall surface 21 and a second side wall surface 22 that are connected to each other. When the multiple valve plates 2 are moving toward the center of the feed channel 10 or away from the center of the feed channel 10, the first side wall surface 21 of one of the two adjacent valve plates 2 can be attached to and slide relatively with the second side wall surface 22 of the other valve plate 2, so that the multiple valve plates 2 are connected in sequence and together form the feed port 5, as shown. Figure 3 or Figure 11 or Figure 18 .

[0066] It should be noted that the “two adjacent valve plates 2 ” mentioned above and below refer to two adjacent valve plates 2 among the multiple valve plates 2 along the circumferential direction of the feed channel 10 , and there is no extra valve plate 2 between the two valve plates 2 .

[0067] In this embodiment, the first side wall surface 21 and the second side wall surface 22 of each valve plate 2 respectively form the two side wall surfaces of the feed port 5. Therefore, the angle between the first side wall surface 21 and the second side wall surface 22 is the inner angle of the feed port 5. In other words, the angle between the first side wall surface 21 and the second side wall surface 22 is determined by the shape of the feed port 5.

[0068] like Figure 1 、 Figure 9 as well as Figure 16 As shown, in some embodiments, the valve body 1 as the base of the entire device can be welded from steel plates to ensure its strength, and the overall height can be guaranteed to be around 500 mm, which is much lower than the height of 1500 mm of the existing material flow device.

[0069] Furthermore, the valve body 1 can be a hollow cylinder, which can be a cylindrical body, etc., and multiple valve plates 2 and transmission mechanisms are respectively arranged in the valve body 1. The feed channel 10 passes through both ends of the valve body 1 in the axial direction. A sleeve 4 is provided at the entrance of the feed channel 10, which can serve the function of receiving materials, gathering materials and feeding materials into the feed channel 10.

[0070] Alternatively, as Figure 16 As shown, upper and lower flanges 8 can be provided at the upper and lower ends of the valve body 1 for connection with other equipment.

[0071] Example 1:

[0072] like Figure 2 As shown, in this embodiment, the material flow regulating device further includes a plurality of guide rods 6 respectively disposed in the valve body 1, and the plurality of guide rods 6 are arranged circumferentially around the feed channel 10. Each guide rod 6 extends in the radial direction of the feed channel 10, and the plurality of guide rods 6 are slidably connected to the plurality of valve plates 2 in a one-to-one correspondence.

[0073] like Figure 8 As shown, each valve plate 2 is provided with a second slider 308 , the second slider 308 is provided with a guide hole 23 , and the guide rod 6 is passed through the guide hole 23 .

[0074] Furthermore, in the process of the multiple valve plates 2 of this embodiment approaching the center of the feed channel 10 or moving away from the center of the feed channel 10, they can slide along their corresponding guide rods 6, so that the multiple valve plates 2 can perform linear motion in the same plane at the same time.

[0075] like Figure 3 and Figure 6 As shown, in this embodiment, the driving member 301 in the driving component is a driving motor fixed on the valve body 1 , and the motor shaft of the driving motor is connected to the driving gear 302 .

[0076] The transmission mechanism includes a first slewing bearing 303 and an annular plate 304 disposed on the first slewing bearing 303 .

[0077] The first slewing bearing 303 is arranged in the valve body 1 and is coaxial with the feed channel 10. The inner ring of the first slewing bearing 303 is fixedly connected to the valve body 1. The driving gear 302 is engaged with the outer ring of the first slewing bearing 303. The outer ring of the first slewing bearing 303 can be driven to rotate by the driving motor.

[0078] like Figure 6 and Figure 7As shown, the annular plate 304 is fixed to the outer ring of the first slewing support 303 and can rotate synchronously with the outer ring of the first slewing support 303. The annular plate 304 is coaxial with the outer ring of the first slewing support 303. A planar spiral track 305 is provided on the plate surface of the annular plate 304.

[0079] like Figure 8 As shown, each valve plate 2 is provided with a flat spiral tooth 24 adapted to the flat spiral track 305. When the outer ring of the first slewing bearing 303 rotates, the multiple valve plates 2 can simultaneously move toward or away from the center of the feed channel 10 under the guidance of the guide rod 6.

[0080] The working process of the material flow regulating device of this embodiment is described in detail below: first, the driving motor drives the driving gear 302 to rotate, and the driving gear 302 drives the outer ring of the first slewing bearing 303 to rotate, and then drives the annular plate 304 to rotate. The flat spiral track 305 on the annular plate 304 cooperates with the flat spiral teeth 24 on the valve plate 2, and under the action of the guide rod 6, multiple valve plates 2 can move linearly along a fixed trajectory toward or away from the center of the feed channel 10, thereby completing the opening and closing of the feed channel 10.

[0081] Example 2:

[0082] Different from the first embodiment, Figure 11 As shown, in this embodiment, the driving member 301 in the driving component is a first driving hydraulic cylinder fixed on the valve body 1.

[0083] like Figure 14 and Figure 15 As shown, the transmission mechanism includes a plurality of first sliders 306 and a plurality of first slide rails 307 respectively fixed on the plurality of valve plates 2 in a one-to-one correspondence, and each first slider 306 is provided with a through hole. Among the plurality of valve plates 2, the through hole of the first slider 306 of one valve plate 2 of two adjacent valve plates 2 is sleeved on the first slide rail 307 of the other valve plate 2 to form a moving pair, and the first slider 306 can slide along the first slide rail 307. According to the connection rule, with the axis of the feed channel as the rotation axis, the two adjacent valve plates 2 are slidably connected to each other in the counterclockwise direction, but the first slider 306 on the valve plate 2 at the head end is not connected to the first slide rail 307 on the valve plate 2 at the end.

[0084] Likewise, the valve plate 2 of this embodiment is provided with a second sliding block 308 slidably connected to the guide rod 6 .

[0085] Furthermore, in this embodiment, the second sliders 308 on the multiple valve plates 2 are respectively slidably connected to their corresponding guide rods 6, and the first slider 306 of one valve plate 2 of the two adjacent valve plates 2 is slidably connected to the first slide rail 307 of the other valve plate 2. In this way, when any one of the multiple valve plates 2 is moved along its corresponding guide rod 6 by an external force, it can cooperate with the first slide rail 307 of the adjacent valve plate 2 through its first slider 306, thereby driving the adjacent valve plate 2 to move along its corresponding guide rod 6, so that the multiple valve plates 2 can simultaneously approach the center of the feed channel 10 or simultaneously move away from the center of the feed channel 10.

[0086] like Figure 10 As shown, the piston rod of the first driving hydraulic cylinder of this embodiment extends into the interior of the valve body 1 and is connected to any one of the multiple valve plates 2. The piston rod is coaxial with the guide rod 6 corresponding to the valve plate 2 to which it is connected. In this way, the multiple valve plates 2 are driven to move synchronously through the telescopic movement of the first driving hydraulic cylinder.

[0087] Example 3:

[0088] Different from the first embodiment, Figure 17 and Figure 18 As shown, in this embodiment, the driving member 301 in the driving component is a second driving hydraulic cylinder fixed on the valve body 1 , and the transmission mechanism includes a second slewing bearing 309 and a plurality of racks 310 circumferentially arranged around the second slewing bearing 309 .

[0089] The second slewing bearing 309 is disposed in the valve body 1 and is coaxial with the feed channel 10 of the valve body 1 . The inner ring of the second slewing bearing 309 is fixed on the valve body 1 .

[0090] The racks 310 are respectively provided in one-to-one correspondence with the valve plates 2 and are fixedly connected to the corresponding valve plates 2 . Each rack 310 is respectively engaged with the outer ring of the second slewing bearing 309 .

[0091] Furthermore, the piston rod of the second drive hydraulic cylinder extends into the interior of the valve body 1 and is connected to one of the multiple valve plates 2. The retractable movement of the piston rod drives the rack 310 connected to it through the valve plate 2, thereby rotating the outer ring of the second slewing bearing 309. As the outer ring of the second slewing bearing 309 rotates, it also drives the remaining racks 310 to move simultaneously, thereby causing multiple valve plates 2 to move simultaneously.

[0092] Unlike the first embodiment, the flow regulating device of this embodiment does not include multiple guide rods 6. Instead, it includes multiple guide seats 7. The multiple guide seats 7 are respectively disposed within the valve body 1 and arranged circumferentially around the feed channel 10. The multiple guide seats 7 are respectively corresponding to multiple racks 310, and the racks 310 are slidably mounted on the guide seats 7. When the outer ring of the second slewing bearing 309 rotates, it can drive all the racks 310 to slide along their corresponding guide seats 7.

[0093] The valve plate 2 and the rack 310 of this embodiment can be connected in various ways, such as Figure 21 and Figure 22 As shown, the valve plate 2 of this embodiment is provided with a rib 25, and the rack 310 connected thereto is correspondingly provided with a notch. The rib 25 of the valve plate 2 can be inserted into the notch on the rack 310 and fixedly connected.

[0094] An embodiment of the present invention further provides a blast furnace device, which includes a material flow regulating device according to any one of the above embodiments.

[0095] Blast furnace equipment generally includes a furnace body, a furnace body material port is provided on the top of the furnace body, the valve body 1 of the material flow regulating device is fixed on the top of the furnace body, and the discharge port of the feed channel 10 of the valve body 1 is connected to the furnace body material port, so that the material can enter the furnace body through the material flow regulating device.

[0096] The material flow regulating devices used in existing blast furnaces are relatively tall, typically at least 1500 mm in height. This increases the overall height of the blast furnace, significantly increasing the construction cost of the equipment on the blast furnace platform. The material flow regulating device provided by the present invention reduces the overall height of the blast furnace, effectively reducing both construction investment and renovation costs. The saved height can also be allocated to other equipment, increasing blast furnace production. Furthermore, because the valve plate moves within a plane, material flow segregation can be effectively avoided.

[0097] The above description is intended to be illustrative rather than restrictive, and those skilled in the art may make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present disclosure. Furthermore, the above examples (or one or more of them) may be used in combination with each other, and it is contemplated that these embodiments may be combined with each other in various combinations or permutations.

Claims

1. A material flow regulating device, characterized in that: The material flow regulating device comprises: A valve body having a feed channel extending through the upper and lower ends thereof; A plurality of valve plates, each of which is disposed in the valve body and is evenly arranged around the circumference of the feed channel; a driving component, the driving component comprising a driving member and a transmission mechanism respectively connected to each of the valve plates, the driving member being capable of driving the plurality of valve plates to simultaneously perform linear motion in the same plane through the transmission mechanism, so that the plurality of valve plates respectively move toward the center of the feed channel to close the feed channel or respectively move away from the center of the feed channel to open the feed channel; The plurality of valve plates can collectively form a feed port coaxial with the feed channel in a process of moving toward the center of the feed channel to close the feed channel or moving away from the center of the feed channel to open the feed channel, and the inner diameter of the feed port gradually decreases as the plurality of valve plates move toward the center of the feed channel or gradually increases as the plurality of valve plates move away from the center of the feed channel; Each of the valve plates has a first side wall surface and a second side wall surface that are connected to each other. When the multiple valve plates are moved toward or away from the center of the feed channel, the first side wall surface of one of the two adjacent valve plates can be in contact with and slide relative to the second side wall surface of the other valve plate, so that the multiple valve plates are sequentially connected and together form the feed port. The material flow regulating device also includes: a plurality of guide rods, each of the guide rods being disposed in the valve body and circumferentially arranged around the feed channel, each of the guide rods extending in the radial direction of the feed channel, the plurality of guide rods being slidably connected to the plurality of valve plates in a one-to-one correspondence, and the plurality of valve plates being able to slide along the guide rods corresponding to the valve plates in the process of approaching the center of the feed channel or moving away from the center of the feed channel, so that the plurality of valve plates can simultaneously perform linear motion in the same plane; The driving member is a driving motor, the motor shaft of the driving motor is connected to the driving gear, and the transmission mechanism includes: a first slewing bearing, the first slewing bearing being disposed within the valve body and coaxially with the feed channel, the inner ring of the first slewing bearing being fixed to the valve body, the driving gear being engaged with the outer ring of the first slewing bearing for driving the outer ring of the first slewing bearing to rotate; An annular plate is fixed on the outer ring of the first slewing bearing and rotates synchronously with the outer ring of the first slewing bearing. The annular plate is coaxial with the outer ring of the first slewing bearing. A planar spiral track is provided on the plate surface of the annular plate. Each of the valve plates is respectively provided with a planar spiral tooth adapted to the planar spiral track, so that when the outer ring of the first slewing bearing rotates, the multiple valve plates can simultaneously move toward or away from the center of the feed channel under the guidance of the guide rod.

2. A material flow regulating device according to claim 1, characterized in that: The valve body is a hollow cylinder, the feed channel extends to both ends of the valve body in the axial direction, and the material flow regulating device also includes a bushing fixed at the entrance of the feed channel, and the bushing is used to receive the material and gather the material into the feed channel.

3. A material flow regulating device according to claim 1, characterized in that: The driving member is a first driving hydraulic cylinder, and the transmission mechanism includes: A plurality of first sliders, each of which is fixed on the plurality of valve plates in a one-to-one correspondence; Multiple first guide rails are fixed one by one on the multiple valve plates, with the axis of the feed channel as the rotation axis. In the valve plate between the first valve plate at the head end and the second valve plate at the end in the counterclockwise or clockwise direction, the first slider on one of the two adjacent valve plates is slidably connected to the first guide rail on the other valve plate, and the piston rod of the first driving hydraulic cylinder is connected to one of the multiple valve plates to drive the valve plate to slide along its corresponding guide rod, and make the multiple valve plates simultaneously move closer to or away from the center of the feed channel.

4. A material flow regulating device according to claim 1, characterized in that: The driving member is a second driving hydraulic cylinder, and the transmission mechanism includes: a second slewing bearing, the second slewing bearing being disposed within the valve body and coaxially arranged with the feed channel, the inner ring of the second slewing bearing being fixed to the valve body; Multiple racks are respectively arranged in one-to-one correspondence with the multiple valve plates, the first end of each rack is respectively engaged with the outer ring of the second slewing bearing, the second end of each rack is respectively fixedly connected to the corresponding valve plate, the piston rod of the second driving hydraulic cylinder is connected to one of the valve plates, and is used to drive the valve plate to drive the rack connected thereto to move and drive the outer ring of the second slewing bearing to rotate.

5. A material flow regulating device according to claim 4, characterized in that: The material flow regulating device also includes: A plurality of guide seats are respectively arranged in the valve body and around the circumference of the feed channel, and the plurality of racks are respectively and slidably arranged on the plurality of guide seats in a one-to-one correspondence.

6. A blast furnace equipment, characterized in that: The blast furnace equipment includes a material flow regulating device as described in any one of claims 1 to 5.

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