Blast furnace stock bin

Abstract

The present application belongs to the technical field of blast furnace stock bin, in particular to a blast furnace stock bin, which comprises a stock bin body, a frame assembly is arranged at the inlet of the upper end of the stock bin body, four groups of steel plates are arranged equidistantly in the frame assembly, and a fixed plate is welded on one side of the frame assembly, three groups of belt assemblies are clamped on the three groups of steel plates respectively, one group of belt assembly is clamped on the fixed plate, the three groups of steel plates and the fixed plate are arranged to form four groups of discharge ports, the belt assembly is used for shielding the discharge port, as the dust accumulates in the stock bin body, the air pressure in the stock bin body becomes larger, the dust will flow out of the discharge port, and under the influence of air pressure, the belt assembly corresponding to the discharge port without material will be close to the steel plate, so that the dust cannot come out of the discharge port, compared with the prior art, the present application sets the belt assembly, uses the dust to change the air pressure in the stock bin body, makes the belt assembly close to the steel plate, thereby prevents the dust in the stock bin from overflowing, greatly improves the on-site environment, and reduces the influence on production.

Description

Technical Field

[0001] This invention belongs to the technical field of blast furnace ore bins, specifically a blast furnace ore bin. Background Technology

[0002] Raw ore refers to unprocessed iron ore. Since raw ore can be directly fed into the furnace for smelting without processing, the ironmaking cost of using raw ore is relatively low. Steel companies generally use raw ore as one of the important methods to reduce costs and increase efficiency in blast furnaces. Using a large proportion of raw ore has become an important way for various companies to reduce blast furnace costs.

[0003] CN115125344A discloses a method for treating caking and thickening of ore in blast furnace hoppers, belonging to the field of hot rolling control technology in the metallurgical industry. The technical solution of this invention is as follows: Sintered ore with high hardness, non-adhesiveness, and high friction is selected. The sintered ore is loaded from the top of the hopper into the caking and thickening ore bin via a hopper loading trolley. The impact force of the falling sintered ore and the strong friction force as it slides towards the bottom of the bin are used to treat the caking and thickening of the ore on the side walls and the discharge nozzle. The resulting sintered ore is then fed into the blast furnace via a weighing hopper and conveyor belt after the target bin material type and discharge sequence are modified by the main control loading control system. The beneficial effects of this invention are: it effectively treats the caking and thickening of ore in the hopper without modification or investment, and without increasing costs. It eliminates the need for workers to handle caking and thickening in the relatively dangerous and harsh confined space of the blast furnace hopper, which is of great significance for the normal blending of blast furnace raw ore and for cost reduction and efficiency improvement.

[0004] In the above scheme, during the process of throwing sintered ore into the sintered raw ore bin, the sintered ore needs to pass through the feed inlet at the top of the sintered raw ore bin. After the sintered ore falls into the bin, a large amount of dust will be generated. As the dust in the bin increases, the dust will overflow from the feed inlet, polluting the on-site environment and causing occupational hazards to the workers. Therefore, the present invention provides a blast furnace ore bin. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides a blast furnace ore bin, including a bin body, a frame assembly is provided at the upper end of the bin body at the inlet, four sets of steel plates are arranged at equal intervals inside the frame assembly, and a fixing plate is welded to one side of the frame assembly. Three sets of belt assemblies are respectively engaged on the three sets of steel plates, and one set of belt assembly is engaged on the fixing plate. The three sets of steel plates and the fixing plate are arranged to form four sets of discharge ports, and the belt assemblies are used to block the discharge ports.

[0007] Compared with existing technologies, this solution utilizes the characteristic of dust changing the air pressure inside the silo by setting up a belt assembly, which allows the belt assembly to be tightly attached to the steel plate, thereby preventing dust from overflowing from the silo, greatly improving the on-site environment and reducing the impact on production.

[0008] Preferably, the belt assembly includes: a fastener, a belt body that is fixedly connected to the fastener, a mating groove opened on the fastener, a steel plate inserted into the mating groove, and seven sets of insert rods welded at equal intervals in the mating groove, with seven sets of guide holes opened at equal intervals on the upper end of the steel plate, and the insert rods inserted into the guide holes.

[0009] When installing the belt assembly, align the mating groove on the fastener with the upper end of the steel plate, and simultaneously insert the seven sets of pins into the seven sets of guide holes on the upper end of the steel plate, thereby securing the fastener to the steel plate. At the same time, the belt body hangs down into the feed inlet. Since the fastener is located directly above the belt body, the material will directly impact the fastener, preventing the belt body from being directly impacted, thus improving the service life of the belt body.

[0010] Preferably, the belt assembly further includes: a return groove, which is opened on one side of the mating groove; three sets of U-shaped springs are welded at equal intervals in the return groove; and a clip is welded to the end of the U-shaped spring; a slot is provided on the steel plate, and the clip engages with the slot.

[0011] Under the rebound force of the U-shaped spring, the fastener engages with the slot on the steel plate. Through the cooperation between the fastener and the slot, the fastener is elastically engaged with the steel plate, making it impossible for the fastener to easily detach from the steel plate.

[0012] Preferably, the frame assembly includes: a lower frame, which is fixedly installed at the upper inlet of the hopper body, eight sets of placement slots on both sides of the lower frame, inclined bosses set in the placement slots, an upper frame that engages with the upper end of the lower frame, and eight sets of tripods symmetrically arranged on both sides of the lower end of the upper frame. The tripods are located directly above the inclined bosses, and the left and right ends of the steel plate are respectively located in two sets of placement slots, and the left and right ends of the steel plate are respectively attached to two sets of inclined bosses.

[0013] The placement of slots, beveled bosses, and tripods facilitates the installation and disassembly of steel plates by workers.

[0014] Preferably, the frame body is engaged with the upper end of the lower frame, and the drive shafts are symmetrically screwed into the inner cavities on both sides of the frame body. Four sets of external threads are equidistantly arranged on the drive shafts, a worm gear is fixedly connected to one end of the drive shaft, a worm meshes with the worm gear, and a dual-axis motor is connected to the worm. The tripod includes: a limiting rod, which is located directly above the inclined boss and is parallel to the inclined boss; two sets of limiting pins are welded to the lower end face of the limiting rod; a hinge seat is hinged to one end of the limiting rod; a connecting rod is hinged to the middle of the limiting rod; and a slider is hinged to the end of the connecting rod. The slider is slidably connected to the inner cavities on both sides of the frame body. Threaded holes are opened on the slider, and external threads are screwed into the threaded holes. Four sets of limiting holes are symmetrically opened on the steel plate, and the limiting pins are inserted into the limiting holes.

[0015] A dual-axis motor drives two sets of worm gears to rotate. As the worm gears rotate, the worm wheel drives the transmission shaft to rotate as well. As the transmission shaft rotates, the slider moves along the external thread. At the same time, the slider pulls the limit rod through the connecting rod, causing the limit rod and the limit pin to flip along the hinge seat. The limit pin drives the steel plate to flip through the limit hole. Because all four sets of steel plates flip simultaneously, the distance between the discharge ports decreases. Then, the dual-axis motor drives the two sets of worm gears in the opposite direction, causing the steel plates to return to their initial positions. This continuous change in the distance between the discharge ports promotes the movement of the blockage material and clears the blockage.

[0016] The beneficial effects of this invention are as follows:

[0017] 1. Dust is generated when materials fall into the silo. As the dust accumulates in the silo, the air pressure inside the silo increases, causing the dust to flow out towards the discharge port. Simultaneously, due to the air pressure, the belt conveyor assembly corresponding to the discharge port that is not receiving materials will be pressed tightly against the steel plate, preventing dust from escaping from that discharge port. Compared with existing technologies, this solution, by setting up a belt conveyor assembly, utilizes the characteristic of dust changing the air pressure inside the silo to make the belt conveyor assembly press tightly against the steel plate, thereby preventing dust from overflowing from the silo, greatly improving the on-site environment and reducing the impact on production.

[0018] 2. When installing the belt assembly, align the mating groove on the fastener with the upper end of the steel plate, and simultaneously insert the seven sets of pins into the seven sets of guide holes on the upper end of the steel plate, thereby securing the fastener to the steel plate. Meanwhile, the belt body hangs down into the feed inlet. Since the fastener is located directly above the belt body, the material will directly impact the fastener, preventing the belt body from being directly impacted, thus improving the belt body's service life. Furthermore, the design of the mating groove, pins, and guide holes allows the fastener to be installed and removed from the steel plate via a plug-and-play method, facilitating the replacement of the belt body by the operator.

[0019] 3. During the docking process between the docking groove and the upper end of the steel plate, the upper end of the steel plate will squeeze the clamp, causing the clamp to compress the U-shaped spring and move the clamp towards the return groove until, under the rebound force of the U-shaped spring, the clamp engages with the groove on the steel plate. Through the cooperation between the clamp and the groove, the fastener is elastically engaged on the steel plate, making it impossible for the fastener to easily detach from the steel plate.

[0020] 4. When replacing the steel plate, loosen the bolts fastened to the upper frame, then lift the upper frame upwards. The upper frame will move the eight tripods upwards until the upper frame and the eight tripods are completely detached from the lower frame. At this point, the damaged steel plate can be taken directly out of the placement slot in the lower frame, and the new steel plate can be placed into the empty placement slot until the steel plate is in contact with the inclined boss. Then, install the upper frame and the eight tripods on the lower frame and tighten the bolts to fix the steel plate between the tripod and the inclined boss. The placement slot, inclined boss, and tripod design facilitate the installation and removal of the steel plate by the workers.

[0021] 5. When the discharge port becomes blocked, the dual-axis motor drives two sets of worm gears to rotate. As the worm gears rotate, the worm wheel drives the transmission shaft to rotate as well. As the transmission shaft rotates, the slider moves along the external thread. At the same time, the slider pulls the limit rod through the connecting rod, causing the limit rod and the limit pin to flip along the hinge seat. The limit pin drives the steel plate to flip through the limit hole. Since all four sets of steel plates flip simultaneously, the distance between the discharge ports decreases. Then, the dual-axis motor drives the two sets of worm gears in the opposite direction, causing the steel plates to return to their initial positions. This continuously changes the distance between the discharge ports, thereby promoting the movement of the blocked material and clearing the blockage. Attached Figure Description

[0022] The invention will now be further described with reference to the accompanying drawings.

[0023] Figure 1 This is a schematic diagram of the structure of the present invention.

[0024] Figure 2 This is a cross-sectional view of the structure of the present invention.

[0025] Figure 3 This is a schematic diagram of the assembly of the steel plate and belt assembly of the present invention.

[0026] Figure 4 This is a schematic diagram of the steel plate and the belt assembly in partial cross-section of the present invention.

[0027] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0028] Figure 6 This is a schematic diagram of the combination of the frame component and the steel plate of the present invention.

[0029] Figure 7This is a schematic diagram of the assembly of the frame component and the steel plate of the present invention.

[0030] Figure 8 This is a partial cross-sectional view of the upper frame, tripod, and steel plate assembly of the present invention.

[0031] Figure 9 for Figure 8 Enlarged view of section B in the middle.

[0032] In the diagram: 1. Hopper body; 2. Frame assembly; 3. Fixing plate; 4. Steel plate; 401. Slot; 402. Guide hole; 403. Limiting hole; 5. Belt assembly; 6. Discharge port; 501. Fixing component; 502. Belt body; 503. Connecting groove; 504. Insert rod; 505. Return groove; 506. U-shaped spring; 507. Clamp; 201. Lower frame; 202. Placement groove; 203. Angled boss; 204. Upper frame; 205. Tripod; 2051. Limiting rod; 2052. Limiting pin; 2053. Hinge seat; 2054. Connecting rod; 2055. Slider; 2041. Frame body; 2042. Drive shaft; 2043. External thread; 2044. Worm gear; 2045. Worm; 2046. Dual-axis motor. Detailed Implementation

[0033] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0034] Example 1

[0035] like Figure 1 and Figure 2 As shown in the embodiment of the present invention, a blast furnace ore bin includes a bin body 1. A frame assembly 2 is provided at the upper inlet of the bin body 1. Four sets of steel plates 4 are arranged at equal intervals inside the frame assembly 2. A fixing plate 3 is welded to one side of the frame assembly 2. Three sets of belt assemblies 5 are respectively clamped on the three sets of steel plates 4. One set of belt assembly 5 is clamped on the fixing plate 3. The three sets of steel plates 4 and the fixing plate 3 are arranged to form four sets of discharge ports 6. The belt assembly 5 is used to cover the discharge ports 6.

[0036] Specifically, the steel plate 4 is inclined within the frame assembly 2. When materials enter the silo, they enter through the discharge port 6 and slide downwards along the steel plate 4 due to their own gravity. As the materials slide downwards, they squeeze the belt assembly 5, causing the belt assembly 5 to open the discharge port 6, allowing the materials to fall into the silo body 1. The falling materials generate dust within the silo body 1. As the dust accumulates, the air pressure inside the silo body 1 increases, causing the dust to flow out towards the discharge port 6. Simultaneously, due to the air pressure, the belt assembly 5 corresponding to the discharge port 6 that is not receiving material will adhere tightly to the steel plate 4, preventing dust from escaping from that discharge port 6. Compared with existing technologies, this solution, by setting up the belt assembly 5 and utilizing the characteristic of dust changing the air pressure inside the silo body 1, ensures that the belt assembly 5 adheres tightly to the steel plate 4, thereby preventing dust from overflowing from the silo, greatly improving the on-site environment and reducing the impact on production.

[0037] like Figures 3 to 5 As shown, the belt assembly 5 includes: a fastener 501, a belt body 502 fixedly connected to the fastener 501, a mating groove 503 opened on the fastener 501, a steel plate 4 inserted into the mating groove 503, and seven sets of insert rods 504 welded at equal intervals in the mating groove 503. Seven sets of guide holes 402 are opened at equal intervals on the upper end of the steel plate 4, and the insert rods 504 are inserted into the guide holes 402.

[0038] Specifically, the upper end of the fixing plate 3 is also provided with guide holes 402 and slots 401. The belt assembly 5 is generally fastened to the steel plate 4 with bolts. When the material enters the discharge port 6, the material will first hit the joint between the belt assembly 5 and the steel plate 4, resulting in a large impact force at the joint. Since the material of the belt assembly 5 is soft, it is easy for the joint between the belt assembly 5 and the steel plate 4 to detach, thereby reducing the service life of the belt assembly 5. Secondly, the bolt fastening method is not conducive to the installation and disassembly of the belt assembly 5. Therefore, when installing the belt assembly 5, the mating groove 503 on the fixing part 501 is aligned with the upper end of the steel plate 4. The seven sets of insert rods 504 are respectively inserted into the seven sets of guide holes 402 at the upper end of the steel plate 4, thereby locking the fastener 501 onto the steel plate 4. At the same time, the belt body 502 hangs down into the feed port 6. Since the fastener 501 is located directly above the belt body 502, the material will directly impact the fastener 501, avoiding direct impact on the belt body 502, thereby improving the service life of the belt body 502. Secondly, through the setting of the docking groove 503, insert rods 504, and guide holes 402, the fastener 501 can be installed and removed on the steel plate 4 by insertion and removal, which is convenient for the staff to replace the belt body 502.

[0039] Furthermore, the belt assembly 5 also includes: a return groove 505, which is opened on one side of the mating groove 503; three sets of U-shaped springs 506 are welded at equal intervals in the return groove 505; and a retainer 507 welded to the end of the U-shaped spring 506. A retainer groove 401 is provided on the steel plate 4, and the retainer 507 engages with the retainer groove 401.

[0040] Specifically, the U-shaped spring 506 is made of stainless steel with good elasticity and toughness. During the docking process between the docking groove 503 and the upper end of the steel plate 4, the upper end of the steel plate 4 will squeeze the clamp 507, causing the clamp 507 to compress the U-shaped spring 506. The clamp 507 will then move into the return groove 505 until, under the rebound force of the U-shaped spring 506, the clamp 507 engages with the groove 401 on the steel plate 4. Through the cooperation between the clamp 507 and the groove 401, the fixing member 501 is elastically engaged on the steel plate 4, making it impossible for the fixing member 501 to easily detach from the steel plate 4.

[0041] like Figure 6 and Figure 7 As shown, the frame assembly 2 includes: a lower frame 201, which is fixedly installed at the upper inlet of the hopper body 1; eight sets of placement slots 202 opened on both sides inside the lower frame 201; inclined bosses 203 set in the placement slots 202; an upper frame 204 that engages with the upper end of the lower frame 201; and eight sets of tripods 205 symmetrically arranged on both sides of the lower end of the upper frame 204. The tripods 205 are located directly above the inclined bosses 203. The left and right ends of the steel plate 4 are respectively located in the two sets of placement slots 202, and the left and right ends of the steel plate 4 are respectively attached to the two sets of inclined bosses 203.

[0042] Specifically, the upper frame 204 is bolted to the lower frame 201. Over time, not only will the belt body 502 wear down, but the steel plate 4 will also wear down, requiring replacement. The existing steel plate 4 is fixed to the frame assembly 2 by welding, making replacement very troublesome. Therefore, when replacing the steel plate 4, the bolts fastened to the upper frame 204 are released, and then the upper frame 204 is lifted upwards. The upper frame 204 will then move the eight tripods 205 upwards until the upper frame 204 and the eight tripods 205 are completely... After completely detaching from the lower frame 201, the damaged steel plate 4 can be directly removed from the placement slot 202 inside the lower frame 201, and the new steel plate 4 can be placed into the empty placement slot 202 until the steel plate 4 fits against the inclined boss 203. Then, the upper frame 204 together with eight sets of tripods 205 are installed on the lower frame 201, and the bolts are tightened so that the steel plate 4 is fixed between the tripods 205 and the inclined boss 203. The placement slot 202, the inclined boss 203, and the tripods 205 make it easy for workers to install and remove the steel plate 4.

[0043] Example 2

[0044] like Figures 7 to 9 As shown in the comparative embodiment one, another embodiment of the present invention is as follows: the upper frame 204 includes: a frame body 2041, the frame body 2041 being engaged with the upper end of the lower frame 201, a drive shaft 2042 symmetrically screwed into the inner cavities on both sides of the frame body 2041, four sets of external threads 2043 equidistantly arranged on the drive shaft 2042, a worm gear 2044 fixedly connected to one end of the drive shaft 2042, a worm 2045 meshing with the worm gear 2044, and a dual-axis motor 2046 connected to the worm 2045. The tripod 205 includes: a limiting rod 2051, the limiting rod 2051 being located at the inclined... Above the protrusion 203, and with the limiting rod 2051 parallel to the inclined protrusion 203, two sets of limiting pins 2052 are welded to the lower end face of the limiting rod 2051, a hinge seat 2053 is hinged to one end of the limiting rod 2051, a connecting rod 2054 is hinged to the middle of the limiting rod 2051, and a slider 2055 is hinged to the end of the connecting rod 2054. The slider 2055 slides to connect the inner cavities on both sides of the frame body 2041. Threaded holes are opened on the slider 2055, and external threads 2043 are screwed into the threaded holes. Four sets of limiting holes 403 are symmetrically opened on the steel plate 4, and the limiting pins 2052 are inserted into the limiting holes 403.

[0045] Specifically, the hinge seat 2053 is fixedly connected to the frame body 2041, and the dual-axis motor 2046 (reference model STP-28D1003) is used. The material slides into the hopper body 1 through the discharge port 6. Due to the occasional presence of large lumps in the material, and when the material has high moisture content, the discharge port 6 is prone to blockage. Workers usually use a stick to unclog the discharge port 6. However, since workers need to apply considerable force when unblocking with a stick, the stick can easily hit the belt body 502 and the steel plate 4, which can easily damage the belt body 502 and cause wear on the steel plate 4, reducing its service life. Therefore, when the discharge port 6 is blocked, the dual-axis motor 2046 drives two sets of worm gears 2045 to rotate. As the worm gear 2045 rotates, the worm wheel 2044 drives the transmission shaft 2042 to rotate together. As the transmission shaft 2042 rotates, the slider 2055 moves along the external thread 2043. At the same time, the slider 2055 pulls the limiting rod 2051 through the connecting rod 2054, causing the limiting rod 2051 and the limiting pin 2052 to flip along the hinge seat 2053. The limiting pin 2052 drives the steel plate 4 to flip through the limiting hole 403. Since the four sets of steel plates 4 flip simultaneously, the distance between the discharge ports 6 becomes smaller. Then, the dual-axis motor 2046 drives the two sets of worm gears 2045 in the opposite direction, causing the steel plates 4 to return to their initial positions. This causes the distance between the discharge ports 6 to change continuously, thereby promoting the movement of the blocked material and clearing the blockage.

[0046] Working principle: Material enters through discharge port 6 and slides down the steel plate 4 under its own weight. As the material slides down, it squeezes the belt assembly 5, causing the belt assembly 5 to open discharge port 6, allowing the material to fall into the hopper 1. As dust accumulates in the hopper 1, the air pressure inside the hopper 1 increases, and the dust flows out towards discharge port 6. Simultaneously, due to the air pressure, the belt assembly 5 corresponding to the discharge port 6 that is not receiving material will press tightly against the steel plate 4, preventing dust from escaping from that discharge port 6. When installing the belt assembly 5, the mating groove 503 on the fixing part 501 is aligned with the upper end of the steel plate 4, and the seven sets of insertion rods 504 are respectively inserted into the seven sets of guide holes on the upper end of the steel plate 4. 402. During the docking process, the upper end of the steel plate 4 will press the clamp 507, causing the clamp 507 to compress the U-shaped spring 506. The clamp 507 will then move into the return groove 505 until, under the rebound force of the U-shaped spring 506, the clamp 507 engages with the groove 401 on the steel plate 4. Through the cooperation between the clamp 507 and the groove 401, the fixing member 501 is elastically engaged with the steel plate 4, thus securing the fixing member 501 to the steel plate 4. At the same time, the belt body 502 hangs down into the feed port 6. Since the fixing member 501 is located directly above the belt body 502, the material will directly impact the fixing member 501, preventing the belt body 502 from being directly impacted. When replacing the steel plate 4, the fastening is released. Bolts on the upper frame 204 are removed, and the upper frame 204 is lifted upwards. The upper frame 204 will move the eight sets of tripods 205 upwards until the upper frame 204 and the eight sets of tripods 205 are completely detached from the lower frame 201. At this time, the damaged steel plate 4 can be taken directly out of the placement slot 202 in the lower frame 201, and a new steel plate 4 is placed into the empty placement slot 202 until the steel plate 4 is in contact with the inclined boss 203. Then, the upper frame 204 and the eight sets of tripods 205 are installed on the lower frame 201, and the bolts are tightened to fix the steel plate 4 between the tripods 205 and the inclined boss 203. When the feed port 6 is blocked, the dual-axis motor 2046 drives the two sets of worm gears 20 As the worm gear 2045 rotates, the worm wheel 2044 drives the transmission shaft 2042 to rotate together. As the transmission shaft 2042 rotates, the slider 2055 moves along the external thread 2043. At the same time, the slider 2055 pulls the limiting rod 2051 through the connecting rod 2054, causing the limiting rod 2051 and the limiting pin 2052 to flip along the hinge seat 2053. The limiting pin 2052 drives the steel plate 4 to flip through the limiting hole 403. Since the four sets of steel plates 4 flip simultaneously, the distance between the discharge ports 6 becomes smaller. Then, the dual-axis motor 2046 drives the two sets of worm gears 2045 in the opposite direction, causing the steel plates 4 to return to the initial position. This causes the distance between the discharge ports 6 to change continuously, thereby promoting the movement of the blocked material.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A blast furnace ore bin, comprising a bin body (1), characterized in that: A frame assembly (2) is provided at the upper inlet of the hopper body (1). Four sets of steel plates (4) are arranged at equal intervals inside the frame assembly (2), and a fixing plate (3) is welded to one side of the frame assembly (2). Three sets of belt assemblies (5) are respectively fastened on the three sets of steel plates (4), and one set of belt assembly (5) is fastened on the fixing plate (3). The three sets of steel plates (4) and the fixing plate (3) are arranged to form four sets of discharge ports (6). The belt assembly (5) is used to block the discharge ports (6). The belt assembly (5) includes: Fastener (501); The belt body (502) is fixedly connected to the fastener (501); A mating groove (503) is formed on the fastener (501), and the mating groove (503) is inserted into the steel plate (4); as well as, Seven sets of insert rods (504) are welded at equal intervals in the docking groove (503); The steel plate (4) has seven sets of guide holes (402) at equal intervals on its upper end, and the insert rod (504) is inserted into the guide holes (402). The belt assembly (5) also includes: Return groove (505), the return groove (505) is formed on one side inside the docking groove (503); Three sets of U-shaped springs (506) are welded at equal intervals in the return groove (505); as well as, A retaining clip (507) is welded to the end of the U-shaped spring (506); The steel plate (4) is provided with a slot (401), and the clip (507) engages with the slot (401). The border component (2) includes: The lower frame (201) is fixedly installed at the upper inlet of the hopper body (1); Eight sets of placement slots (202) are opened on both sides inside the lower frame (201); The inclined boss (203) is provided in the placement slot (202); Engages with the upper frame (204) at the upper end of the lower frame (201); as well as, Eight sets of tripods (205) are symmetrically arranged on both sides of the lower end of the upper frame (204).

2. The blast furnace ore bin according to claim 1, characterized in that: The tripod (205) is located directly above the inclined boss (203), and the left and right ends of the steel plate (4) are respectively located in two sets of placement slots (202), and the left and right ends of the steel plate (4) are respectively attached to the two sets of inclined bosses (203).

3. The blast furnace ore bin according to claim 2, characterized in that: The upper frame (204) includes: A frame body (2041) is engaged with the upper end of the lower frame (201); The drive shafts (2042) are symmetrically screwed into the inner cavities on both sides of the frame body (2041). Four sets of external threads (2043) are equidistantly arranged on the drive shaft (2042); A worm gear (2044) is fixedly connected to one end of the drive shaft (2042). The worm (2045) meshes with the worm wheel (2044); as well as, A dual-axis motor (2046) connected to the worm gear (2045).

4. A blast furnace ore bin according to claim 3, characterized in that: The tripod (205) includes: A limiting rod (2051) is located directly above the inclined boss (203) and is parallel to the inclined boss (203). Two sets of limiting pins (2052) are welded to the lower end face of the limiting rod (2051); A hinge seat (2053) hinged to one end of the limiting rod (2051); A connecting rod (2054) hinged to the middle of the limiting rod (2051); as well as, The slider (2055) is hinged to the end of the connecting rod (2054).

5. A blast furnace ore bin according to claim 4, characterized in that: The slider (2055) is slidably connected to the inner cavities on both sides of the frame body (2041). The slider (2055) has a threaded hole, and the external thread (2043) is screwed into the threaded hole. Four sets of limiting holes (403) are symmetrically opened on the steel plate (4), and the limiting pin (2052) is inserted into the limiting hole (403).

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