A new type of electromagnetic heating reduced iron powder production equipment and preparation method

Abstract

The present invention provides a novel electromagnetic heating reduced iron powder production equipment and a preparation method thereof, which belongs to the field of reduced iron powder production. The novel electromagnetic heating reduced iron powder production equipment and a preparation method thereof comprise a base, wherein an air outlet seat and a feeding seat are fixedly installed at both ends of the top surface of the base, an electromagnetic heating cylinder is installed between the air outlet seat and the feeding seat, and a reduced iron ball auxiliary sintering mechanism is provided above the top plate. The present invention controls the start-up of the driving motor 2 to drive the turntable to rotate, and drives the wedge-shaped wheel to rotate, so that the outer surface of the wedge-shaped wheel contacts the clamping column 1, and can drive the connecting plate and the clamping block 1 to move inside the fixed frame, ejecting the reduced iron powder balls that enter the inside of the connecting sleeve, and the reduced iron powder balls can collide with each other inside the collision frame, and the reduced iron powder balls are impacted into multiple petals, thereby increasing the subsequent heating area.

Description

Technical Field

[0001] The present invention relates to the technical field of reduced iron powder production, and in particular to a novel electromagnetic heating reduced iron powder production device and a preparation method thereof. Background Art

[0002] The production of electromagnetically reduced iron powder is a process that uses electromagnetic heating technology to reduce iron ore or iron oxides into iron powder. This process is commonly used in the powder metallurgy industry, the steel industry, and other fields that require high-purity iron powder. The production of electromagnetically reduced iron powder is an efficient and energy-saving production process that can provide high-quality iron powder and has a wide range of applications in many industrial fields.

[0003] However, there are still some problems in the existing electromagnetic heating reduced iron powder production process. For example, during the iron powder reduction process, the balled iron powder needs to be added to the electromagnetic heating reduction furnace for the reduction operation of pure iron powder. However, the existing reduced iron powder balls after balling are directly added to the electromagnetic heating furnace for heating without prior treatment of the reduced iron powder balls, which affects the efficiency of iron powder reduction in the subsequent reduction process. Summary of the Invention

[0004] In order to overcome the above deficiencies, the present invention provides a novel electromagnetic heating reduced iron powder production equipment and a preparation method thereof that overcome the above technical problems or at least partially solve the above problems.

[0005] The present invention is achieved in that:

[0006] The present invention provides a novel electromagnetic heating reduced iron powder production device, comprising a base, a gas outlet seat and a feeding seat are fixedly installed at both ends of the top surface of the base, an electromagnetic heating cylinder is installed between the gas outlet seat and the feeding seat, a gear disk is fixedly installed on the outer surface of the electromagnetic heating cylinder, a driving motor is fixedly installed on the top surface of the base, a column is provided on the outer side of the base, a top plate is fixedly installed on the top surface of the column, a reduced iron ball auxiliary sintering mechanism is provided above the top plate, and a reduced iron ball impact crushing mechanism is provided above the reduced iron ball auxiliary sintering mechanism;

[0007] The reduced iron ball auxiliary sintering mechanism includes a mounting plate, a support column is fixedly mounted on the bottom surface of the mounting plate, and a turntable is rotatably mounted on the top of the support column. The reduced iron ball auxiliary sintering mechanism is configured to extend the sintering time of the reduced iron balls.

[0008] In a preferred solution, a sealing cover is provided on the top of the turntable, and a circular arc-shaped baffle is fixedly installed on the inner bottom surface of the sealing cover, and the circular arc-shaped baffle isolates the interior of the sealing cover from the discharge cavity. A discharge rack is fixedly installed on one side of the sealing cover, and a feed rack is fixedly installed on one end of the discharge rack, and one end of the feed rack is located inside the feeding seat.

[0009] In a preferred solution, a rectangular groove is provided on the bottom surface of the discharge rack, a toggle column is movably connected to the inside of the rectangular groove, a spring is fixedly connected between one side surface of the toggle column and one side surface of the rectangular groove, a push block is movably connected to the inside of the discharge rack, one end of the toggle column is fixedly connected to the bottom surface of the push block, and a wedge plate is installed on the bottom surface of the turntable.

[0010] In a preferred embodiment, there are two reduced iron ball impact crushing mechanisms, and the two reduced iron ball impact crushing mechanisms are arranged in opposition. The reduced iron ball impact crushing mechanism includes a fixed frame, which is installed on the top of the top plate through a bracket and is located above the reduced iron ball auxiliary sintering mechanism. One end of the fixed frame is fixedly installed with a connecting sleeve, the internal movably clamped with a clamping block 1, the internal movably clamped with a pushing column, the clamping block 1 is fixedly connected to the pushing column, and the reduced iron ball impact crushing mechanism is set for crushing the reduced iron balls. External frames are fixedly installed on both sides of the fixed frame, and a mounting shaft is rotatably installed inside the external frame. A wedge-shaped runner is fixedly installed on the outer surface of the mounting shaft, and a connecting plate is fixedly installed on one side surface of the clamping block 1, and a clamping column 1 is fixedly installed inside the connecting plate. The top surface of the fixed frame is fixedly installed with a fixing block, and the inside of the fixing block is fixedly installed with a clamping column 2.

[0011] In a preferred solution, the outer surfaces of the second clamping column and the first clamping column are both movably sleeved with a sleeve frame, a spring second is fixedly connected between the two sleeve frames, a material box is provided above the connecting sleeve, a connecting pipe is fixedly connected between the material box and the connecting sleeve, a collision frame is fixedly connected between the two connecting sleeves, one end of the collision frame extends to the interior of the sealing cover, a reduced iron ball primary sintering mechanism is provided on the outside of the mounting shaft, and a reduced iron ball auxiliary heating mechanism is provided above the fixed frame.

[0012] In a preferred embodiment, the reduced iron ball auxiliary heating mechanism includes a tank body, which is fixedly mounted on the top surface of the fixed frame, and the internal movably clamped with a plug disc, and an extension rod is fixedly mounted on one side surface of the plug disc, and a positioning plate is fixedly mounted on one end of the extension rod, and one end of the positioning plate is fixedly connected to the top surface of the connecting plate, and a storage box is fixedly connected to one side surface of the material box, and a connecting pipe 1 is fixedly connected between the storage box and the tank body, and a one-way valve 1 is fixedly mounted on the outer surface of the connecting pipe 1, and a connecting pipe 2 is fixedly connected between one side of the tank body and the connecting pipe, and a one-way valve 2 is fixedly mounted on the outer surface of the connecting pipe 2.

[0013] In a preferred embodiment, the reduced iron ball primary sintering mechanism includes a positioning frame, and the number of the positioning frames is four. The four positioning frames are equidistantly installed on the top surface of the sealing cover. The interior of the positioning frame is movably connected to a clamping block 2, and the top of the clamping block 2 is fixedly installed with a support, and the multiple supports are connected by an inclined rod.

[0014] In a preferred solution, the bottom surface of the clamping block 1 is fixedly connected to a driving plate, and one side surface of the driving plate is fixedly connected to a driving rod, wherein a sealing plate is fixedly installed between the two opposing clamping blocks 2, and the sealing plate is inserted into the interior of the collision frame, and the other end of the driving rod is fixedly connected to one side surface of the clamping block 2, and an electromagnetic heater is fixedly installed on the inner bottom surface of the collision frame.

[0015] In a preferred solution, an air inlet frame is fixedly mounted on the top surface of the sealing cover, an air outlet is provided on the bottom surface of the air inlet frame, and a delivery pipe is fixedly connected between the air outlet seat and the air inlet frame.

[0016] A novel method for preparing reduced iron powder by electromagnetic heating comprises the following steps:

[0017] S1: As the wedge-shaped wheel rotates, the outer surface of the wedge-shaped wheel contacts the clamping column 1, driving the pushing column to move inside the connecting sleeve, causing the reduced iron powder balls inside the material box to fall into the inside of the connecting sleeve. When the clamping column 1 breaks away from the maximum diameter of the wedge-shaped wheel, it will quickly rebound under the action of the spring 2, ejecting the reduced iron powder balls that have entered the connecting sleeve. Since the number of reduced iron balls impacting and crushing mechanisms is two, and the two reduced iron balls impacting and crushing mechanisms can move synchronously, the ejected reduced iron powder balls can collide with each other inside the collision frame, and then the reduced iron powder balls are impacted into multiple petals, thereby increasing the subsequent heating area;

[0018] S2: When the connecting sleeve moves inside the fixing frame, it drives the plug disc to perform a suction movement inside the tank body, sucking the gypsum powder inside the storage box into the tank body through the connecting pipe 1, and then discharging it into the connecting pipe through the connecting pipe 2. The gypsum powder falls into the connecting sleeve together with the falling reduced iron powder balls. As the two reduced iron powder balls collide inside the collision frame, the gypsum powder is coated on each petal of the reduced iron powder balls after the collision, so that the reduced iron powder balls can be heated more quickly during the subsequent preheating and sintering processes;

[0019] S3: When the clamping block 1 moves inside the fixing frame, it can synchronously drive the driving plate and the driving rod to move synchronously. When the clamping block 1 moves to a position close to the connecting sleeve, the two blocking plates block the collision frame, so that the reduced iron powder balls after the collision can stay on the top of the two blocking plates. The electromagnetic heater is activated by control to perform a primary sintering of the broken reduced iron powder balls staying on the top of the blocking plates and the gypsum powder, so that the broken reduced iron powder balls can be combined with the gypsum powder, so that the broken reduced iron powder balls are not easily broken again during subsequent operations;

[0020] S4: As the sealing cover rotates, the reduced iron powder balls that fall on the top of the turntable can be driven to move along the arc-shaped baffle and the inner wall of the sealing cover, and gradually move to the inside of the discharge rack. Through the provided air inlet rack, the hot air inside the electromagnetic heating cylinder can enter the inside of the sealing cover through the conveying pipe and the air inlet rack, and preheat the petal-shaped reduced iron powder balls after impact. The reduced iron powder balls that are broken by impact can obtain a larger preheating area, so that the reduced iron powder balls can be preheated more completely, thereby improving the quality and speed of subsequent sintering;

[0021] S5: As the turntable rotates, the wedge plate is driven to move. When the wedge surface of the wedge plate contacts the toggle column, it can drive the toggle column to move inside the rectangular groove, and then drive the pushing block to move inside the discharge rack, pushing the reduced iron powder balls entering the discharge rack, pushing the reduced iron powder balls into the feed rack, and finally into the feeding seat. Then, as the electromagnetic heating cylinder rotates, it enters the interior of the electromagnetic heating cylinder for electromagnetic sintering reduction operation.

[0022] The present invention provides a novel electromagnetic heating reduced iron powder production equipment and a preparation method thereof, the beneficial effects of which include:

[0023] 1. A reduced iron ball impact crushing mechanism is provided, and the start-up of the driving motor 2 is controlled to drive the turntable to rotate, drive the mounting shaft to rotate, and then drive the wedge-shaped wheel to rotate, so that the outer surface of the wedge-shaped wheel contacts the clamping column 1, which can drive the connecting plate and the clamping block 1 to move inside the fixed frame, thereby driving the pushing column to move inside the connecting sleeve. When the clamping column 1 breaks away from the maximum diameter of the wedge wheel, it will quickly rebound under the action of the spring 2, and the reduced iron powder balls that have entered the connecting sleeve will be ejected. The reduced iron powder balls can collide with each other inside the collision frame, and then the reduced iron powder balls are impacted into multiple petals, thereby increasing the subsequent heating area.

[0024] 2. By setting up a reduced iron ball auxiliary sintering mechanism, as the sealing cover rotates, the reduced iron powder balls that fall on the top of the turntable can be driven to move along the arc-shaped baffle and the inner wall of the sealing cover, and gradually move to the inside of the discharge rack. In addition, through the provided air intake rack, the hot air inside the electromagnetic heating cylinder can enter the inside of the sealing cover through the conveying pipe and the air intake rack, preheating the reduced iron powder balls that appear in a petal shape after impact, thereby improving the quality and speed of subsequent sintering.

[0025] 3. By setting up a reduced iron ball auxiliary heating mechanism, when the connecting sleeve moves inside the fixed frame, it can synchronously drive the positioning plate and the extension rod to move, and then drive the plug disc to perform suction movement inside the tank body, and the gypsum powder inside the storage box is sucked into the interior of the tank body through the connecting pipe 1, and then discharged into the interior of the connecting pipe through the connecting pipe 2, and finally falls into the interior of the connecting sleeve together with the falling reduced iron powder balls, and as the two reduced iron powder balls subsequently collide inside the collision frame, the gypsum powder can be coated on the petals of the reduced iron powder balls after the collision. The gypsum powder has good thermal conductivity and can accelerate the transfer of heat, so that the reduced iron powder balls can be heated more quickly in the subsequent preheating and sintering processes, thereby improving the effects of preheating and subsequent sintering reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 It is an overall stereogram provided by an embodiment of the present invention;

[0028] Figure 2 A schematic diagram of the overall front view structure provided for an embodiment of the present invention;

[0029] Figure 3 A schematic diagram of the overall side structure provided for an embodiment of the present invention;

[0030] Figure 4 A schematic diagram of the structure of a rotating disk provided in an embodiment of the present invention;

[0031] Figure 5 A schematic diagram of the arc-shaped baffle structure provided in an embodiment of the present invention;

[0032] Figure 6 A schematic structural diagram of a reduced iron ball impact crushing mechanism provided in an embodiment of the present invention;

[0033] Figure 7 A schematic diagram of the structure of the auxiliary heating mechanism for reduced iron balls provided in an embodiment of the present invention;

[0034] Figure 8 This is a schematic structural diagram of the reduced iron ball sintering mechanism provided in an embodiment of the present invention.

[0035] In the figure: 1, base; 2, air outlet seat; 3, charging seat; 4, electromagnetic heating cylinder; 5, driving motor 1; 6, gear plate; 7, column; 8, top plate; 9, feeding rack; 10, reduced iron ball auxiliary sintering mechanism; 1001, mounting plate; 1002, support column; 1003, sealing cover; 1004, turntable; 1005, discharge rack; 1006, arc-shaped baffle; 1007, material chamber; 1008, push block; 100 9. Rectangular groove; 1010. Toggle column; 1011. Spring 1; 1012. Wedge plate; 13. Reduced iron ball impact crushing mechanism; 1301. Fixed frame; 1302. Connecting sleeve; 1303. Clamping block 1; 1304. Push column; 1305. External frame; 1306. Mounting shaft; 1307. Wedge-shaped runner; 1308. Connecting plate; 1309. Clamping column 1; 1310. Sleeve frame; 1311. Fixed frame Fixed block; 1312, clamping column 2; 1313, spring 2; 1314, material box; 1315, connecting pipe; 1316, collision frame; 14, reduced iron ball auxiliary heating mechanism; 1401, tank; 1402, plug plate; 1403, extension rod; 1404, positioning plate; 1405, storage box; 1406, connecting pipe 1; 1407, one-way valve 1; 1408, connecting pipe 2; 1409, one-way valve 2; 15, Reduced iron ball primary sintering mechanism; 1501, positioning frame; 1502, clamping block 2; 1503, support; 1504, inclined rod; 1505, sealing plate; 1506, driving rod; 1507, driving plate; 1511, electromagnetic heater; 16, driving motor 2; 17, transmission gear 1; 18, rotating rod; 19, transmission gear 2; 20, bevel gear 1; 21, bevel gear 2; 22, conveying pipe; 23, air intake frame. DETAILED DESCRIPTION

[0036] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0037] Reference Figures 1-8 The present invention provides a technical solution: a novel electromagnetic heating reduced iron powder production equipment, comprising a base 1, a gas outlet seat 2 and a feeding seat 3 are fixedly installed at both ends of the top surface of the base 1, an electromagnetic heating cylinder 4 is installed between the gas outlet seat 2 and the feeding seat 3, a gear disk 6 is fixedly installed on the outer surface of the electromagnetic heating cylinder 4, a driving motor 5 is fixedly installed on the top surface of the base 1, a column 7 is provided on the outer side of the base 1, a top plate 8 is fixedly installed on the top surface of the column 7, a reduced iron ball auxiliary sintering mechanism 10 is provided above the top plate 8, and a reduced iron ball impact crushing mechanism 13 is provided above the reduced iron ball auxiliary sintering mechanism 10;

[0038] The reduced iron ball auxiliary sintering mechanism 10 includes a mounting plate 1001, a support column 1002 is fixedly mounted on the bottom surface of the mounting plate 1001, and a turntable 1004 is rotatably mounted on the top of the support column 1002. The reduced iron ball auxiliary sintering mechanism 10 is configured to extend the sintering time of the reduced iron balls;

[0039] A sealing cover 1003 is provided on the top of the turntable 1004, and an arc-shaped baffle 1006 is fixedly installed on the inner bottom surface of the sealing cover 1003. The arc-shaped baffle 1006 isolates the inner part of the sealing cover 1003 from the discharge chamber 1007. A discharge rack 1005 is fixedly installed on one side of the sealing cover 1003, and a feed rack 9 is fixedly installed on one end of the discharge rack 1005. One end of the feed rack 9 is located inside the feeding seat 3. A rectangular groove 1009 is provided on the bottom surface of the discharge rack 1005, and a dial is connected to the inner movable card of the rectangular groove 1009. The movable column 1010 has a spring 1011 fixedly connected between one side surface of the movable column 1010 and one side surface of the rectangular groove 1009. The internal movable clamp of the discharge rack 1005 is connected with the push block 1008. One end of the movable column 1010 is fixedly connected to the bottom surface of the push block 1008. The bottom surface of the turntable 1004 is installed with a wedge plate 1012. The top surface of the sealing cover 1003 is fixedly installed with an air intake rack 23. The bottom surface of the air intake rack 23 is provided with an air outlet. The conveying pipe 22 is fixedly connected between the air outlet seat 2 and the air intake rack 23.

[0040] The outer surface of the turntable 1004 is provided with teeth grooves, and the top surface of the top plate 8 is fixedly installed with a driving motor 2 16. The output end of the driving motor 2 16 is fixedly installed with a transmission gear 17, and the transmission gear 17 is meshed with the turntable 1004 through the teeth grooves.

[0041] During operation, when the turntable 1004 rotates under the drive of the driving motor 2 16 and the transmission gear 1 17, the reduced iron powder balls that have been hit can enter the interior of the sealing cover 1003 through the collision frame 1316 and are located on the top of the turntable 1004. At this time, as the sealing cover 1003 rotates, the reduced iron powder balls that have fallen on the top of the turntable 1004 can be driven to move along the arc-shaped baffle 1006 and the inner wall of the sealing cover 1003, and gradually move to the interior of the discharge rack 1005. Through the provided air intake rack 23, the hot air inside the electromagnetic heating cylinder 4 can pass through the conveying pipe 22 and the air intake rack 23. The rack 23 enters the interior of the sealing cover 1003 and preheats the reduced iron powder balls that are in a petal shape after the impact. That is, the reduced iron powder balls that have entered the sealing cover 1003 can have more preheating time when they enter the interior of the discharge rack 1005 in turn, and the reduced iron powder balls that have been broken by the impact can obtain a larger preheating area. In the process of rotation of the turntable 1004, that is, in the process of preheating the reduced iron powder balls that have entered the sealing cover 1003, they can roll, so that the reduced iron powder balls can be preheated more completely, thereby improving the quality and speed of subsequent sintering.

[0042] When the reduced iron powder balls enter the interior of the discharge rack 1005, the rotation of the turntable 1004 will drive the wedge plate 1012 to move. When the wedge surface of the wedge plate 1012 contacts the toggle column 1010, it can drive the toggle column 1010 to move inside the rectangular groove 1009, and then drive the pushing block 1008 to move inside the discharge rack 1005, pushing the reduced iron powder balls entering the interior of the discharge rack 1005, pushing the reduced iron powder balls to the interior of the feed rack 9, and finally entering the interior of the feeding seat 3, and then entering the interior of the electromagnetic heating tube 4 as the electromagnetic heating tube 4 rotates to perform electromagnetic sintering reduction operations.

[0043] There are two reduced iron ball impact crushing mechanisms 13, which are arranged in opposition to each other. The reduced iron ball impact crushing mechanisms 13 include a fixed frame 1301, which is installed on the top of the top plate 8 through a bracket and is located above the reduced iron ball auxiliary sintering mechanism 10. A connecting sleeve 1302 is fixedly installed at one end of the fixed frame 1301, and a clamping block 1303 is movably connected to the interior of the fixed frame 1301. A pushing column 1304 is movably connected to the interior of the connecting sleeve 1302. The clamping block 1303 is fixedly connected to the pushing column 1304. The reduced iron ball impact crushing mechanism 13 is configured to crush the reduced iron balls.

[0044] External frames 1305 are fixedly installed on both sides of the fixing frame 1301. A mounting shaft 1306 is rotatably installed inside the external frame 1305. A wedge-shaped rotating wheel 1307 is fixedly installed on the outer surface of the mounting shaft 1306. A connecting plate 1308 is fixedly installed on one side of the clamping block 1303. A clamping column 1309 is fixedly installed inside the connecting plate 1308. A fixing block 1311 is fixedly installed on the top surface of the fixing frame 1301. A clamping column 2 1312 is fixedly installed inside the fixing block 1311. The clamping column 2 1312 and the outer surface of the clamping column 1309 are fixedly installed. The surfaces are movably connected with a socket frame 1310, and a spring 2 1313 is fixedly connected between the two socket frames 1310. A material box 1314 is provided above the connecting sleeve 1302, and a connecting pipe 1315 is fixedly connected between the material box 1314 and the connecting sleeve 1302. A collision frame 1316 is fixedly connected between the two connecting sleeves 1302, and one end of the collision frame 1316 extends to the inside of the sealing cover 1003. A reduced iron ball primary sintering mechanism 15 is provided on the outside of the mounting shaft 1306, and a reduced iron ball auxiliary heating mechanism 14 is provided above the fixed frame 1301.

[0045] A rotating rod 18 is rotatably mounted on the top surface of the top plate 8, and a transmission gear 2 19 is fixedly sleeved on the outer surface of the rotating rod 18. The transmission gear 2 19 is meshed with the tooth grooves on the outer surface of the turntable 1004. A bevel gear 1 20 is fixedly mounted on the top of the rotating rod 18, and a bevel gear 2 21 is fixedly mounted on one end of the mounting shaft 1306. The bevel gear 1 20 and the bevel gear 2 21 are meshed with each other.

[0046] During operation, in the process of reducing reduced iron, it is necessary to first perform a balling operation on the reduced iron for subsequent heating and reduction. However, the heating area of ​​the balled reduced iron powder will be greatly reduced during the subsequent heating and reduction process. Therefore, before heating and reduction, the balled reduced iron powder is first uniformly placed in the interior of the material box 1314, and then the start of the driving motor 2 16 is controlled to drive the turntable 1004 to rotate, thereby driving the rotating rod 18 and the transmission gear 2 19 to rotate, and then driving the mounting shaft 1306 to rotate under the action of the bevel gear 1 20 and the bevel gear 2 21, thereby driving the wedge-shaped runner 1307 to rotate. At this time, as the wedge-shaped runner 1307 rotates, the outer surface of the wedge-shaped runner 1307 contacts the clamping column 1 1309, which can drive the connecting plate 1308 and the clamping block 1 1303 to move inside the fixed frame 1301, thereby driving the pushing column 1304 to move inside the connecting sleeve 1302. When the pushing column 1304 When the cylinder 1314 is in the airtight position, the spring 1313 of the cylinder 1314 is engaged, and the spring 1313 of the cylinder 1314 is engaged, so that the cylinder 1314 is in the airtight position, so that the cylinder 1314 is in the airtight position, so that the cylinder 1314 is in the airtight position, so that the cylinder 1314 is in the airtight position, so that the cylinder 1314 is in the airtight position, so that the cylinder 1314 is in the airtight position, so that the cylinder 1314 is in the airtight position, so that the cylinder 1314 is in the airtight position, so that the cylinder 1314 is in the airtight position, so that the cylinder 1314 is in the airtight position, so that the cylinder 1314 is in the airtight position, so that the cylinder 1314 is in the airtight position, so that the cylinder 1314 is in the airtight position, so that the cylinder 1314 is in the airtight position, so that the cylinder 1314 is in the airtight position, so that the cylinder 1314 is in the airtight position

[0047] The reduced iron ball auxiliary heating mechanism 14 includes a tank body 1401, which is fixedly installed on the top surface of the fixed frame 1301. The internal part of the tank body 1401 is movably connected with a plug disc 1402, and an extension rod 1403 is fixedly installed on the surface of one side of the plug disc 1402. A positioning plate 1404 is fixedly installed on one end of the extension rod 1403. One end of the positioning plate 1404 is fixedly connected to the top surface of the connecting plate 1308. A storage box 1405 is fixedly connected to the surface of one side of the material box 1314. A connecting pipe 1406 is fixedly connected between the storage box 1405 and the tank body 1401. A one-way valve 1407 is fixedly installed on the outer surface of the connecting pipe 1406. A connecting pipe 2 1408 is fixedly connected between one side of the tank body 1401 and the connecting pipe 1315. A one-way valve 2 1409 is fixedly installed on the outer surface of the connecting pipe 2 1408.

[0048] During operation, when the connecting sleeve 1302 moves inside the fixing frame 1301, it can synchronously drive the positioning plate 1404 and the extension rod 1403 to move, thereby driving the plug disc 1402 to perform a suction movement inside the tank body 1401, sucking the gypsum powder inside the storage box 1405 into the inside of the tank body 1401 through the connecting pipe 1406, and then discharged into the inside of the connecting pipe 1315 through the connecting pipe 2 1408, and finally falling into the inside of the connecting sleeve 1302 together with the falling reduced iron powder balls, and with the subsequent two reduced iron powder balls The collision occurs inside the collision frame 1316, which can make the gypsum powder cover the reduced iron powder balls after the collision. The gypsum powder has good thermal conductivity and can accelerate the transfer of heat, so that the reduced iron powder balls can be heated more quickly during the subsequent preheating and sintering processes, thereby improving the effects of preheating and subsequent sintering reduction. In addition, it can also make it difficult for the iron balls to disperse again after being impacted during the sintering process of the reduced iron ball primary sintering mechanism 15, which is helpful for the sintering and shaping of the reduced iron powder balls after the collision.

[0049] The reduced iron ball primary sintering mechanism 15 includes a positioning frame 1501, and there are four positioning frames 1501. The four positioning frames 1501 are equidistantly installed on the top surface of the sealing cover 1003. The interior of the positioning frame 1501 is movably connected with a clamping block 2 1502, and the top of the clamping block 2 1502 is fixedly installed with a support 1503. The multiple supports 1503 are connected by an inclined rod 1504. The bottom surface of the clamping block 1 1303 is fixedly connected with a driving plate 1507, and one side surface of the driving plate 1507 is fixedly connected with a driving rod 1506. A sealing plate 1505 is fixedly installed between two opposing clamping blocks 2 1502, and the sealing plate 1505 is inserted into the interior of the collision frame 1316. The other end of the driving rod 1506 is fixedly connected to the one side surface of the clamping block 2 1502, and the inner bottom surface of the collision frame 1316 is fixedly installed with an electromagnetic heater 1511.

[0050] During operation, when the clamping block 1303 moves inside the fixing frame 1301, it can synchronously drive the driving plate 1507 and the driving rod 1506 to move synchronously, and then drive the two relative supports 1503 to move away from and close to the installation shaft 1306. After the reduced iron powder ball collides, that is, when the clamping block 1303 moves to a position close to the connecting sleeve 1302, the two blocking plates 1505 can block the collision frame 1316, so that the reduced iron powder ball after the collision can stay on the top of the two blocking plates 1505, and then the reduced iron powder ball is moved to the top of the two blocking plates 1505 by the controlled electromagnetic The heater 1511 is started. When the electromagnetic heater 1511 is started, the broken reduced iron powder balls and gypsum powder staying on the top of the sealing plate 1505 can be initially sintered, so that the broken reduced iron powder balls can be combined with the gypsum powder, making it difficult for the broken reduced iron powder balls to break again during subsequent operations. In addition, the duration of the initial sintering depends on the speed at which the reduced iron powder balls collide with each other, that is, until the next two reduced iron powder balls collide, the reduced iron powder balls staying on the top of the sealing plate 1505 and undergoing the initial sintering can enter the interior of the reduced iron ball auxiliary sintering mechanism 10.

[0051] A novel method for preparing reduced iron powder by electromagnetic heating comprises the following steps:

[0052] S1: As the wedge-shaped runner 1307 rotates, the outer surface of the wedge-shaped runner 1307 contacts the clamping column 1309, driving the pushing column 1304 to move inside the connecting sleeve 1302, causing the reduced iron powder balls inside the material box 1314 to fall into the interior of the connecting sleeve 1302. When the clamping column 1309 breaks away from the maximum diameter of the wedge-shaped runner 1307, it will quickly rebound under the action of the spring 2 1313, and the reduced iron powder balls entering the connecting sleeve 1302 will be ejected. Since there are two reduced iron balls impacting the crushing mechanism 13, and the two reduced iron balls impacting the crushing mechanism 13 can move synchronously, the ejected reduced iron powder balls can collide with each other inside the collision frame 1316, and then the reduced iron powder balls are impacted into multiple petals, thereby increasing the subsequent heating area;

[0053] S2: When the connecting sleeve 1302 moves inside the fixing frame 1301, it drives the plug disc 1402 to perform a suction movement inside the tank body 1401, sucking the gypsum powder inside the storage box 1405 into the tank body 1401 through the connecting pipe 1406, and then discharging it into the connecting pipe 1315 through the connecting pipe 2 1408. The gypsum powder falls into the connecting sleeve 1302 along with the falling reduced iron powder balls. As the two reduced iron powder balls collide inside the collision frame 1316, the gypsum powder is coated on each petal of the reduced iron powder balls after the collision, so that the reduced iron powder balls can be heated more quickly in the subsequent preheating and sintering processes.

[0054] S3: When the clamping block 1303 moves inside the fixing frame 1301, it can synchronously drive the driving plate 1507 and the driving rod 1506 to move synchronously. When the clamping block 1303 moves to a position close to the connecting sleeve 1302, the two blocking plates 1505 block the collision frame 1316, so that the reduced iron powder balls after the collision can stay on the top of the two blocking plates 1505. The electromagnetic heater 1511 is controlled to start and perform the initial sintering of the broken reduced iron powder balls staying on the top of the blocking plates 1505 and the gypsum powder, so that the broken reduced iron powder balls can be combined with the gypsum powder, so that the broken reduced iron powder balls are not easily broken again during subsequent operations.

[0055] S4: As the sealing cover 1003 rotates, the reduced iron powder balls that fall on the top of the turntable 1004 can be driven to move along the arc-shaped baffle 1006 and the inner wall of the sealing cover 1003, and gradually move to the inside of the discharge rack 1005. Through the provided air inlet rack 23, the hot air inside the electromagnetic heating cylinder 4 can enter the inside of the sealing cover 1003 through the conveying pipe 22 and the air inlet rack 23, and preheat the reduced iron powder balls that are in a petal shape after the impact. The reduced iron powder balls that are broken by the impact can obtain a larger preheating area, so that the reduced iron powder balls can be preheated more completely, thereby improving the quality and speed of subsequent sintering;

[0056] S5: As the turntable 1004 rotates, the wedge plate 1012 is driven to move. When the wedge surface of the wedge plate 1012 contacts the toggle column 1010, it can drive the toggle column 1010 to move inside the rectangular groove 1009, and then drive the pushing block 1008 to move inside the discharge rack 1005, pushing the reduced iron powder balls entering the discharge rack 1005, pushing the reduced iron powder balls into the feed rack 9, and finally into the feeding seat 3, and then as the electromagnetic heating tube 4 rotates, it enters the interior of the electromagnetic heating tube 4 to perform electromagnetic sintering reduction operations.

[0057] Specifically, the working process or working principle of the novel electromagnetic heating reduced iron powder production equipment and preparation method thereof is as follows: when in use, the balled reduced iron powder is uniformly placed inside the material box 1314, and then the turntable 1004 is driven to rotate by controlling the start of the driving motor 2 16, thereby driving the rotating rod 18 and the transmission gear 2 19 to rotate, and then driving the installation shaft 1306 to rotate under the action of the bevel gear 1 20 and the bevel gear 2 21, and then driving the wedge-shaped wheel 1307 to rotate. At this time, as the wedge-shaped wheel 1307 rotates, the outer surface of the wedge-shaped wheel 1307 contacts the clamping column 1 1309, which can drive the connecting plate 1308 and the clamping block 13 03 moves inside the fixing frame 1301, thereby driving the pushing column 1304 to move inside the connecting sleeve 1302. When the pushing column 1304 moves to a position away from the connecting pipe 1315, the connecting pipe 1315 loses its blockage, causing the reduced iron powder balls inside the material box 1314 to fall into the inside of the connecting sleeve 1302. When the clamping column 1309 breaks away from the maximum diameter of the wedge-shaped runner 1307, it will quickly rebound under the action of the spring 2 1313, and the reduced iron powder balls that have entered the connecting sleeve 1302 will be ejected. The reduced iron powder balls can collide with each other inside the collision frame 1316, and then the reduced iron powder balls are impacted into multiple petals, thereby increasing the subsequent heating area.

[0058] As the sealing cover 1003 rotates, the reduced iron powder balls that fall on the top of the turntable 1004 can be driven to move along the arc-shaped baffle 1006 and the inner wall of the sealing cover 1003, and gradually move to the inside of the discharge rack 1005. Moreover, through the provided air inlet rack 23, the hot air inside the electromagnetic heating cylinder 4 can enter the inside of the sealing cover 1003 through the conveying pipe 22 and the air inlet rack 23, and preheat the reduced iron powder balls that are in a petal shape after the impact. That is, the reduced iron powder balls that enter the sealing cover 1003 can have more preheating time when they enter the inside of the discharge rack 1005 in turn, and the reduced iron powder balls that are broken by the impact can obtain a larger preheating area. In the process of the rotation of the turntable 1004, that is, the process of preheating the reduced iron powder balls that enter the sealing cover 1003, they can roll, so that the reduced iron powder balls can be preheated more completely, thereby improving the quality and speed of subsequent sintering.

[0059] When the connecting sleeve 1302 moves inside the fixing frame 1301, it can synchronously drive the positioning plate 1404 and the extension rod 1403 to move, thereby driving the plug disc 1402 to perform a suction movement inside the tank body 1401, sucking the gypsum powder inside the storage box 1405 into the tank body 1401 through the connecting pipe 1406, and then discharged into the connecting pipe 1315 through the connecting pipe 2 1408, and finally falling into the connecting sleeve 1302 together with the falling reduced iron powder balls. As the two reduced iron powder balls subsequently collide inside the collision frame 1316, the gypsum powder can be coated on the reduced iron powder balls after the collision. The gypsum powder has good thermal conductivity and can accelerate heat transfer, so that the reduced iron powder balls can be heated more quickly in the subsequent preheating and sintering processes, thereby improving the preheating and subsequent sintering reduction effects.

[0060] When the clamping block 1303 moves inside the fixed frame 1301, it can synchronously drive the driving plate 1507 and the driving rod 1506 to move synchronously, and then drive the two relative supports 1503 to move away from and closer to the installation shaft 1306. After the reduced iron powder ball collides, that is, when the clamping block 1303 moves to a position close to the connecting sleeve 1302, the two blocking plates 1505 can block the collision frame 1316, so that the reduced iron powder ball after the collision can stay on the top of the two blocking plates 1505, and then the electromagnetic heater 1511 is started by control. When the electromagnetic heater 1511 is started, the broken reduced iron powder ball and gypsum powder staying on the top of the blocking plate 1505 can be initially sintered, so that the broken reduced iron powder ball can be combined with the gypsum powder, so that the broken reduced iron powder ball is not easy to break again in subsequent operations.

[0061] It should be noted that the electromagnetic heater 1511 is a device or equipment existing in the prior art, or a device or equipment that can be realized in the prior art. Its power supply, specific composition and principle are clear to those skilled in the art, so they are not described in detail.

Claims

1. A novel electromagnetic heating reduced iron powder production equipment, comprising a base (1), characterized in that: An air outlet seat (2) and a feeding seat (3) are fixedly mounted on both ends of the top surface of the base (1), an electromagnetic heating tube (4) is mounted between the air outlet seat (2) and the feeding seat (3), a toothed disc (6) is fixedly mounted on the outer surface of the electromagnetic heating tube (4), a driving motor (5) is fixedly mounted on the top surface of the base (1), a column (7) is arranged on the outer side of the base (1), a top plate (8) is fixedly mounted on the top surface of the column (7), a reduced iron ball auxiliary sintering mechanism (10) is arranged above the top plate (8), and a reduced iron ball impact crushing mechanism (13) is arranged above the reduced iron ball auxiliary sintering mechanism (10); The reduced iron ball auxiliary sintering mechanism (10) comprises a mounting plate (1001), a support column (1002) is fixedly mounted on the bottom surface of the mounting plate (1001), and a turntable (1004) is rotatably mounted on the top of the support column (1002). The reduced iron ball auxiliary sintering mechanism (10) is configured to extend the sintering time of the reduced iron balls; The number of the reduced iron ball impact crushing mechanisms (13) is two, and the two reduced iron ball impact crushing mechanisms (13) are arranged in opposition. The reduced iron ball impact crushing mechanisms (13) include a fixed frame (1301), the fixed frame (1301) is installed on the top of the top plate (8) through a bracket, and is located above the reduced iron ball auxiliary sintering mechanism (10), one end of the fixed frame (1301) is fixedly installed with a connecting sleeve (1302), the internal movably clamped with a clamping block 1 (1303), the internal movably clamped with a pushing column (1304), the clamping block 1 (1303) is fixedly connected to the pushing column (1304), The reduced iron ball impact crushing mechanism (13) is configured to crush the reduced iron balls. External frames (1305) are fixedly mounted on both sides of the fixed frame (1301). A mounting shaft (1306) is rotatably mounted inside the external frame (1305). A wedge-shaped runner (1307) is fixedly mounted on the outer surface of the mounting shaft (1306). A connecting plate (1308) is fixedly mounted on one side surface of the clamping block 1 (1303). A clamping column 1 (1309) is fixedly mounted inside the connecting plate (1308). A fixing block (1311) is fixedly mounted on the top surface of the fixed frame (1301). A clamping column 2 (1312) is fixedly mounted inside the fixing block (1311). The outer surfaces of the second clamping column (1312) and the first clamping column (1309) are both movably sleeved with a sleeve frame (1310), and a second spring (1313) is fixedly connected between the two sleeve frames (1310). A material box (1314) is provided above the connecting sleeve (1302), and a connecting pipe (1315) is fixedly connected between the material box (1314) and the connecting sleeve (1302). A collision frame (1316) is fixedly connected between the two connecting sleeves (1302), and one end of the collision frame (1316) extends to the inside of the sealing cover (1003). A reduced iron ball primary sintering mechanism (15) is provided on the outer side of the installation shaft (1306), and a reduced iron ball auxiliary heating mechanism (14) is provided above the fixed frame (1301).

2. The novel electromagnetic heating reduced iron powder production equipment according to claim 1 is characterized in that: A sealing cover (1003) is provided at the top of the turntable (1004), and a circular arc-shaped baffle (1006) is fixedly installed on the inner bottom surface of the sealing cover (1003), and the circular arc-shaped baffle (1006) isolates the interior of the sealing cover (1003) from the discharge chamber (1007). A discharge rack (1005) is fixedly installed on one side of the sealing cover (1003), and a feed rack (9) is fixedly installed on one end of the discharge rack (1005), and one end of the feed rack (9) is located inside the feeding seat (3).

3. The novel electromagnetic heating reduced iron powder production equipment according to claim 2 is characterized in that: A rectangular groove (1009) is provided on the bottom surface of the discharge rack (1005), a toggle column (1010) is movably connected to the inside of the rectangular groove (1009), a spring (1011) is fixedly connected between one side surface of the toggle column (1010) and one side surface of the rectangular groove (1009), a push block (1008) is movably connected to the inside of the discharge rack (1005), one end of the toggle column (1010) is fixedly connected to the bottom surface of the push block (1008), and a wedge plate (1012) is installed on the bottom surface of the turntable (1004).

4. The novel electromagnetic heating reduced iron powder production equipment according to claim 3 is characterized in that: The reduced iron ball auxiliary heating mechanism (14) includes a tank body (1401), the tank body (1401) is fixedly mounted on the top surface of the fixing frame (1301), a plug disc (1402) is movably connected to the interior of the tank body (1401), an extension rod (1403) is fixedly mounted on one side surface of the plug disc (1402), a positioning plate (1404) is fixedly mounted on one end of the extension rod (1403), and one end of the positioning plate (1404) is fixedly connected to the top surface of the connecting plate (1308). A storage box (1405) is fixedly connected to a surface of one side of the material box (1314), a connecting pipe 1 (1406) is fixedly connected between the storage box (1405) and the tank body (1401), a one-way valve 1 (1407) is fixedly installed on the outer surface of the connecting pipe 1 (1406), a connecting pipe 2 (1408) is fixedly connected between one side of the tank body (1401) and the connecting pipe (1315), and a one-way valve 2 (1409) is fixedly installed on the outer surface of the connecting pipe 2 (1408).

5. The novel electromagnetic heating reduced iron powder production equipment according to claim 4 is characterized in that: The reduced iron ball primary sintering mechanism (15) includes a positioning frame (1501), the number of the positioning frames (1501) is four, and the four positioning frames (1501) are equidistantly installed on the top surface of the sealing cover (1003), the interior of the positioning frame (1501) is movably connected to the second clamping block (1502), the top of the second clamping block (1502) is fixedly installed with a support (1503), and the multiple supports (1503) are connected by an inclined rod (1504).

6. The novel electromagnetic heating reduced iron powder production equipment according to claim 5 is characterized in that: The bottom surface of the clamping block 1 (1303) is fixedly connected to a driving plate (1507), and the side surface of the driving plate (1507) is fixedly connected to a driving rod (1506), wherein a blocking plate (1505) is fixedly installed between the two opposing clamping blocks 2 (1502), and the blocking plate (1505) is inserted into the interior of the collision frame (1316), and the other end of the driving rod (1506) is fixedly connected to the side surface of the clamping block 2 (1502), and an electromagnetic heater (1511) is fixedly installed on the inner bottom surface of the collision frame (1316).

7. The novel electromagnetic heating reduced iron powder production equipment according to claim 6, characterized in that: An air inlet frame (23) is fixedly mounted on the top surface of the sealing cover (1003), an air outlet is provided on the bottom surface of the air inlet frame (23), and a delivery pipe (22) is fixedly connected between the air outlet seat (2) and the air inlet frame (23).

8. A novel method for preparing reduced iron powder by electromagnetic heating, which is applicable to the novel electromagnetic heating reduced iron powder production equipment as claimed in claim 7, characterized in that: The following steps are involved: S1: As the wedge-shaped wheel (1307) rotates, the outer surface of the wedge-shaped wheel (1307) contacts the clamping column 1 (1309), driving the pushing column (1304) to move inside the connecting sleeve (1302), so that the reduced iron powder balls inside the material box (1314) fall into the inside of the connecting sleeve (1302). When the clamping column 1 (1309) breaks away from the maximum diameter of the wedge-shaped wheel (1307), it will rebound quickly under the action of the spring 2 (1313), and the reduced iron powder balls entering the connecting sleeve (1302) will be ejected. Since the number of the reduced iron balls that collide with the crushing mechanism (13) is two, and the two reduced iron balls that collide with the crushing mechanism (13) can move synchronously, the ejected reduced iron powder balls can collide with each other inside the collision frame (1316), and then the reduced iron powder balls are impacted into multiple petals, thereby increasing the subsequent heating area; S2: When the connecting sleeve (1302) moves inside the fixing frame (1301), it drives the plug disc (1402) to perform a suction movement inside the tank body (1401), sucking the gypsum powder inside the storage box (1405) into the tank body (1401) through the connecting pipe 1 (1406), and then discharged into the inside of the connecting pipe (1315) through the connecting pipe 2 (1408), and falling into the inside of the connecting sleeve (1302) along with the falling reduced iron powder balls. As the two reduced iron powder balls collide inside the collision frame (1316), the gypsum powder is coated on each petal of the reduced iron powder balls after the collision, so that the reduced iron powder balls can be heated more quickly in the subsequent preheating and sintering processes; S3: When the clamping block 1 (1303) moves inside the fixing frame (1301), it can synchronously drive the driving plate (1507) and the driving rod (1506) to move synchronously. When the clamping block 1 (1303) moves to a position close to the connecting sleeve (1302), the two blocking plates (1505) block the collision frame (1316), so that the reduced iron powder balls after the collision can stay on the top of the two blocking plates (1505). The electromagnetic heater (1511) is started by control, and the reduced iron powder balls and gypsum powder that are broken and stay on the top of the blocking plates (1505) are initially sintered, so that the broken reduced iron powder balls can be combined with the gypsum powder, so that the broken reduced iron powder balls are not easy to break again during subsequent operations. S4: As the sealing cover (1003) rotates, the reduced iron powder balls that fall on the top of the turntable (1004) can be driven to move along the arc-shaped baffle (1006) and the inner wall of the sealing cover (1003), and gradually move to the inside of the discharge rack (1005). Through the provided air inlet rack (23), the hot air inside the electromagnetic heating cylinder (4) can enter the inside of the sealing cover (1003) through the conveying pipe (22) and the air inlet rack (23), and preheat the reduced iron powder balls that are in a petal shape after the impact. The reduced iron powder balls that are broken by the impact can obtain a larger preheating area, so that the reduced iron powder balls can be preheated more completely, thereby improving the quality and speed of subsequent sintering; S5: As the turntable (1004) rotates, the wedge plate (1012) is driven to move. When the wedge surface of the wedge plate (1012) contacts the toggle column (1010), it can drive the toggle column (1010) to move inside the rectangular groove (1009), and then drive the push block (1008) to move inside the discharge rack (1005), push the reduced iron powder balls entering the discharge rack (1005), push the reduced iron powder balls into the feed rack (9), and finally enter the feeding seat (3), and then enter the interior of the electromagnetic heating cylinder (4) as the electromagnetic heating cylinder (4) rotates to perform electromagnetic sintering reduction operations.

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