Feeding system of sintering machine

Abstract

The invention is suitable for the technical field of sintering machines, and provides a sintering machine feeding system which comprises a charging box fixedly installed at the top of a sintering machine. An annular plate is rotationally arranged in the charging box; a feeding hole is formed in the peripheral side surface of the annular plate; the annular plate divides the interior of the charging box into a storage cavity and a preheating cavity from top to bottom. A spreading part penetrates through the top of the sintering machine; a heat exchange pipe is arranged in the preheating cavity in a penetrating manner; a first rotating part and a second rotating part which are coaxially arranged are rotationally arranged on the heat exchange tube; the clapboards on the side surfaces of the two rotating rings are sequentially staggered; according to the device, the first rotating part and the second rotating part are controlled to synchronously rotate in the same direction, iron ore powder in the material storage cavity sequentially falls into the corresponding transfer cavities, quantitative storage of the iron ore powder is completed, the situation that when a large amount of iron ore powder is fed into a sintering machine subsequently, a material layer of the part is too thick is avoided, and heat transfer resistance is reduced; and the subsequent sintering cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of sintering machines, and more particularly to a feeding system for a sintering machine. Background Art

[0002] Sintering machines are suitable for sintering operations in large-scale ferrous metallurgical sintering plants, primarily for the sintering of fine iron ore in large and medium-sized sintering plants. The main components of a sintering machine are: quicklime crushing chamber, coal (coke) powder crushing chamber, raw material storage, primary mixer chamber, secondary mixer chamber, 70m² sintering chamber, hopper, thermal crusher, screening chamber, etc. Currently, many methods of feeding crushed raw materials use screw conveyors or conveyor belts.

[0003] However, in the process of feeding iron ore powder through the screw conveyor, excessive iron ore powder may accumulate in the inner hopper and the screw conveyor rod, and then the screw conveyor rod will continuously bring in a large amount of iron ore powder and flow out from the discharge port after being driven by the motor. The feeding amount of the iron ore powder is not controlled. When a large amount of iron ore powder is fed into the sintering machine, the material layer in this part is too thick, which will increase the heat transfer resistance and increase the production cost. Moreover, a too thick material layer can easily lead to instability of the material layer, affect the control of the sintering process, and may cause problems such as material layer collapse and poor fluidity. At the same time, most of the existing feeding methods directly feed the iron ore powder into the sintering machine, and no structure is set to preheat the conveyed iron ore powder. The sintering machine needs to consume more energy to complete the sintering process, further increasing the production cost. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a sintering machine feeding system, which controls the first rotating part and the second rotating part to rotate synchronously in the same direction, so that the iron ore powder in the storage chamber falls into the corresponding transfer chamber in turn, completing the quantitative storage of the iron ore powder, avoiding the subsequent large amount of iron ore powder being fed into the sintering machine, preventing the material layer in this part from being too thick, reducing the heat transfer resistance, and using the exhaust fan to draw the hot air in the sintering machine into the heat exchange tube to achieve a one-time preheating of the iron ore powder in the transfer chamber, thereby reducing the cost of subsequent sintering.

[0005] To achieve the above object, the present invention provides the following technical solutions: A sintering machine feeding system comprises a charging box fixedly mounted on the top of the sintering machine; an annular plate is rotatably provided inside the charging box; a feeding port is provided on the peripheral side of the annular plate; the annular plate divides the interior of the charging box into a storage chamber and a preheating chamber from top to bottom; a material laying portion is provided through the top of the sintering machine; a heat exchange tube is provided through the inside of the preheating chamber; an exhaust fan is fixedly installed inside the heat exchange tube; an exhaust tube is provided through the top of the sintering machine; one end of the heat exchange tube is connected to the exhaust tube; a first rotating part and a second rotating part coaxially arranged are rotatably provided on the heat exchange tube; the first rotating part and the second rotating part both comprise a rotating ring that rotates with the heat exchange tube; a number of partitions are evenly fixed on the side of the rotating ring; the partitions on the sides of the two rotating rings are staggered in sequence; a transfer chamber is formed between adjacent partitions.

[0006] The present invention is further configured as follows: a sealing plate is slidingly provided inside the charging box; the bottom of the preheating chamber is open; a feed port is provided on the top of the sintering machine; support plates are symmetrically fixed to the inner wall of the feed port; an arc-shaped plate is fixed between the support plate and the bottom surface of the charging box; a first gear ring is fixed on the side of the annular plate and rotates with the side of the charging box; a first motor is installed on the top of the sintering machine; and a first gear meshing with the first gear ring is fixed on the output end of the first motor.

[0007] The present invention is further configured as follows: annular grooves are provided on both opposite sides of the charging box; a second gear ring and a third gear ring that rotate with the corresponding annular grooves are fixed to the sides of the two rotating rings respectively; a second motor is fixedly installed on both opposite sides of the charging box; a second gear that meshes with the second gear ring and the third gear ring is fixed to the output ends of the two second motors respectively; a plurality of extension rods are provided on both opposite sides of the partition on the second rotating part; a crushing head is fixed to the end of the extension rod.

[0008] The present invention is further configured as follows: an axial hole is provided at the top of the sintering machine; a limiting groove is provided on the inner wall of the axial hole; the material laying part includes a shaft sleeve rotatably arranged in the axial hole; a ring rail rotatably engaged with the limiting groove is fixed to the outer peripheral side of the shaft sleeve; the material laying part also includes a U-shaped seat fixed to the top of the sintering machine; an electric push rod is fixedly installed on the top of the U-shaped seat; an insulating rod is fixed to the telescopic end of the electric push rod and extends through the shaft sleeve into the interior of the sintering machine.

[0009] The present invention is further configured as follows: a connecting plate is fixed on the circumferential side surface of the sleeve below the annular rail; a first connecting ring is fixed between the two ends of the connecting plate; a number of ear plates are evenly fixed on the outer circumferential side surface of the first connecting ring; a fan-shaped plate is rotatably provided on the ear plate; an extension plate is symmetrically fixed on the circumferential side surface of the fan-shaped plate; a rotating shaft that rotates with the ear plate is fixed between the two extension plates; a horizontal plate is fixed to the bottom end of the insulation rod; a second connecting ring is fixed between the two ends of the horizontal plate; a number of support rods are evenly fixed on the surface of the second connecting ring; and a support ring is fixed between the ends of each support rod.

[0010] The present invention is further configured as follows: a third motor is fixedly installed on the top of the sintering machine; a driving shaft is fixed to the output end of the third motor; a fourth gear ring is fixed to the circumferential side of the driving shaft; a fifth gear ring is fixed to the outer circumferential side of the sleeve and meshes with the fourth gear ring; a reciprocating screw is fixed to the end of the driving shaft; a sliding groove is provided on the side of the U-shaped seat; a sliding rod is fixed between the inner walls of the sliding groove; a slider that slides and cooperates with the sliding rod is slidably provided between the inner walls of the sliding groove; an ear rod is fixed to one side of the slider; and a sliding sleeve that is adapted to the reciprocating screw is fixed to the end of the ear rod.

[0011] The present invention is further configured as follows: a support block is fixed to the other opposite side of the slider; a piston rod is fixed to the surface of the support block; a piston plate is fixed to the end of the piston rod; a piston cylinder that slides with the piston plate is fixedly installed on the side of the U-shaped seat; an exhaust pipe is connected to the end of the piston cylinder, and an exhaust pipe is connected to the circumferential side near its end; a one-way valve is provided on the exhaust pipe and the exhaust pipe; an air intake pipe and an air delivery pipe are connected on both sides of the inner wall of the storage chamber in sequence; a connecting pipe is provided through the top of the sintering machine; the air intake pipe and the exhaust pipe, the exhaust pipe and the connecting pipe are respectively connected by heat-resistant hoses.

[0012] The present invention is further configured as follows: a plurality of heat-conducting fins are evenly fixed on the inner circumferential side of the heat exchange tube; guide rods are symmetrically fixed on the inner circumferential side of the heat exchange tube at both sides of the corresponding heat-conducting fins; a slide is slidably provided on the guide rod; a scraper is fixed on the side of the slide; a U-shaped plate is fixed between the two scrapers; a support rod is fixed on the bottom surface of the U-shaped plate; a guide ball is fixed on the end of the support rod; an extrusion spring sleeved on the slide rod is fixed between the slide and the inner circumferential side of the heat exchange tube; a spoke plate is fixed on the output end of the exhaust fan; a guide ring is fixed between the two ends of the spoke plate; and a plurality of arc guide plates are evenly fixed on the outer circumferential side of the guide ring.

[0013] The advantages of the present invention are: 1. The present invention controls the first rotating part and the second rotating part to rotate synchronously in the same direction, so that the iron ore powder in the storage chamber falls into the corresponding transfer chamber in sequence, completing the quantitative storage of the iron ore powder. This prevents the material layer in this part from being too thick when a large amount of iron ore powder is subsequently fed into the sintering machine, thereby reducing the heat transfer resistance. The hot air in the sintering machine is drawn into the heat exchange tube by the exhaust fan, thereby achieving a primary preheating of the iron ore powder in the transfer chamber, thereby reducing the cost of subsequent sintering.

[0014] 2. The present invention controls the periodic synchronous reverse rotation of the first rotating part and the second rotating part, so that the storage space of each group of transfer chambers changes back and forth, causing the iron ore powder in the transfer chamber to gather and collapse back and forth, and cooperates with the hot air drawn in to achieve secondary preheating of the iron ore powder, further improving the preheating effect of the iron ore powder.

[0015] 3. The present invention controls the synchronous rotation of each group of flat sector plates to achieve the flattening of the iron ore powder in the corresponding storage chamber, thereby increasing the heat exchange area, achieving three-time preheating of the iron ore powder, and further improving the preheating effect of the iron ore powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a structural schematic diagram of a sintering machine feeding system of the present invention.

[0018] Figure 2 For the present invention Figure 1 Cross-sectional view from the front view.

[0019] Figure 3 For the present invention Figure 1 Schematic diagram of the structure from another angle.

[0020] Figure 4 It is a structural schematic diagram of the charging box of the present invention.

[0021] Figure 5 For the present invention Figure 4 Cross-sectional view from the front view.

[0022] Figure 6 For the present invention Figure 4 Schematic diagram of the structure from another angle.

[0023] Figure 7 It is a structural schematic diagram of the first rotating part of the present invention.

[0024] Figure 8 Schematic diagram of the structure of the second rotating part of the present invention.

[0025] Figure 9 It is a structural schematic diagram of the material laying part of the present invention.

[0026] Figure 10 For the present invention Figure 9 Schematic diagram of the structure from a normal perspective.

[0027] Figure 11 For the present invention Figure 9 Schematic diagram of the structure from another angle.

[0028] In the figure: 1. charging box; 2. annular plate; 3. feeding port; 4. storage chamber; 5. preheating chamber; 6. laying part; 7. heat exchange tube; 8. exhaust fan; 9. exhaust pipe; 10. first rotating part; 11. second rotating part; 12. rotating ring; 13. partition; 14. transfer chamber; 15. sealing plate; 16. feeding port; 17. supporting plate; 18. arc plate; 19. first ring gear; 20. first motor; 21. first gear; 22. annular groove; 23. second ring gear; 24. third ring gear; 25. second motor; 26. second gear; 27. extension rod; 28. crushing head; 29. ​​shaft hole; 30. limiting groove; 31. shaft sleeve; 32. annular rail; 33. U-shaped seat; 34. electric push rod; 35. insulation rod; 36. connecting plate; 37. First connecting ring; 38. Ear plate; 39. Fan plate; 40. Extension plate; 41. Cross plate; 42. Second connecting ring; 43. Support rod; 44. Support ring; 45. Third motor; 46. Drive shaft; 47. Fourth gear ring; 48. Fifth gear ring; 49. Reciprocating screw; 50. Slide groove; 51. Slide rod; 52. Slider; 53. Ear rod; 54. Sleeve; 55. Support block; 56. Piston rod; 57. Piston cylinder; 58. Exhaust pipe; 59. Exhaust pipe; 60. Inlet pipe; 61. Air supply pipe; 62. Connecting pipe; 63. Heat conducting fin; 64. Guide rod; 65. Slide plate; 66. Scraper; 67. U-shaped plate; 68. Support rod; 69. Guide ball; 70. Extrusion spring; 71. Spoke plate; 72. Guide ring; 73. Arc guide plate. DETAILED DESCRIPTION

[0029] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0031] In the present invention, unless otherwise specified, directions such as "up" and "down" are generally used with respect to the directions shown in the drawings, or with respect to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" are generally used with respect to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0032] For example 1, please refer to Figure 1-11 , the present invention provides the following technical solutions: A sintering machine feeding system, specifically, includes a charging box 1 fixedly installed on the top of the sintering machine; an annular plate 2 is rotatably provided inside the charging box 1; a feeding port 3 is opened on the side surface of the annular plate 2; the annular plate 2 divides the inside of the charging box 1 from top to bottom into a storage chamber 4 and a preheating chamber 5; a laying part 6 is provided through the top of the sintering machine; a heat exchange tube 7 is provided through the inside of the preheating chamber 5; an exhaust fan 8 is fixedly installed inside the heat exchange tube 7; an exhaust pipe 9 is provided through the top of the sintering machine; one end of the heat exchange tube 7 is connected to the exhaust pipe 9; a first rotating part 10 and a second rotating part 11 arranged coaxially are rotatably provided on the heat exchange tube 7; the first rotating part 10 and the second rotating part 11 both include a rotating ring 12 that rotates with the heat exchange tube 7; a number of partitions 13 are evenly fixed on the side of the rotating ring 12; the partitions 13 on the sides of the two rotating rings 12 are staggered in sequence; a transfer chamber 14 is formed between adjacent partitions 13.

[0033] Working principle of this embodiment 1: By controlling the first rotating part 10 and the second rotating part 11 to rotate synchronously in the same direction, the iron ore powder in the storage chamber 4 falls into the corresponding transfer chamber 14 in sequence, completing the quantitative storage of the iron ore powder, preventing the material layer in this part from being too thick when a large amount of iron ore powder is subsequently fed into the sintering machine, reducing the heat transfer resistance, and drawing the hot air in the sintering machine into the heat exchange tube 7 through the exhaust fan 8 to achieve a one-time preheating of the iron ore powder in the transfer chamber 14, thereby reducing the cost of subsequent sintering.

[0034] By controlling the first rotating part 10 and the second rotating part 11 to rotate synchronously in opposite directions periodically, the storage space of each group of transfer chambers 14 changes back and forth, causing the iron ore powder in the transfer chamber 14 to gather and collapse back and forth, and cooperating with the hot air drawn in by the paving part 6 to achieve secondary preheating of the iron ore powder, further improving the preheating effect of the iron ore powder.

[0035] For example 2, please refer to Figure 1-11, this embodiment 2 makes the following improvements on the basis of embodiment 1. Specifically, a sealing plate 15 is slidably provided inside the charging box 1; the bottom of the preheating chamber 5 is opened; a feeding port 16 is provided on the top of the sintering machine; support plates 17 are symmetrically fixed to the inner wall of the feeding port 16; an arc-shaped plate 18 is fixed between the support plate 17 and the bottom surface of the charging box 1; a first gear ring 19 is fixed to the side surface of the annular plate 2 and is rotatably matched with the side surface of the charging box 1; a first motor 20 is installed on the top of the sintering machine; and a first gear 21 is fixed to the output end of the first motor 20 and is meshed with the first gear ring 19.

[0036] Annular grooves 22 are provided on the opposite sides of the charging box 1; a second gear ring 23 and a third gear ring 24 that rotate in cooperation with the corresponding annular grooves 22 are fixed to the sides of the two rotating rings 12 respectively; a second motor 25 is fixedly installed on the opposite sides of the charging box 1; a second gear 26 that meshes with the second gear ring 23 and the third gear ring 24 is fixed to the output ends of the two second motors 25 respectively; a plurality of extension rods 27 are provided on the opposite sides of the partition 13 on the second rotating part 11; a crushing head 28 is fixed to the end of the extension rod 27.

[0037] Working principle of the second embodiment: In the initial state, the feed port 3 is facing the bottom of the storage chamber 4 and is interconnected in the storage chamber 4. A group of transfer chambers 14 is facing the bottom of the storage chamber 4. The sealing plate 15 is opened to add crushed iron ore powder into the storage chamber 4. The iron ore powder enters the corresponding transfer chamber 14 through the feed port, and the two second motors 25 are controlled to start synchronously, driving the second gear ring 23 and the third gear ring 24 to rotate synchronously in the same direction, realizing the rotation conversion of the transfer chamber 14, thereby realizing the quantitative storage of iron ore powder.

[0038] When all transfer chambers 14 complete quantitative storage, the first motor 20 is controlled to start and drive the first gear 21 to rotate, thereby driving the feed port 3 to rotate to fit the inner wall of the preheating chamber 5, so that the annular plate 2 remains in a closed state, and the two second motors 25 are controlled to drive the second gear ring 23 and the third gear ring 24 to rotate synchronously in opposite directions periodically, so that the two adjacent partitions 13 rotate away from and towards each other periodically, thereby realizing the change of the storage space of the transfer chamber 14, so that the iron ore powder in the transfer chamber 14 is reciprocated and gathered and collapsed. When the two adjacent partitions 13 rotate towards each other, the extension rod 27 and the crushing head 28 at its end squeeze and crush the gathered iron ore powder to prevent the iron ore powder from agglomerating. When the two adjacent partitions 13 rotate away from each other, the gathered iron ore powder collapses, increasing the heat exchange area and improving the heat exchange efficiency.

[0039] When it is necessary to add preheated iron ore powder into the sintering machine, the second gear ring 23 and the third gear ring 24 are controlled to rotate synchronously in the same direction, so that a group of transfer chambers 14 are aligned with the feed port 16, and the first motor 20 is controlled to start to drive the first gear 21 to rotate, thereby driving the annular plate 2 to rotate, so that the feed port 3 rotates downward to align with the feed port 16, and the iron ore powder in the corresponding transfer chamber 14 falls into the interior of the sintering machine through the feed port 16, completing the quantitative transportation of the iron ore powder, avoiding a large amount of iron ore powder entering the interior of the sintering machine at the same time to cause the material layer to be too thick, and reducing the heat transfer resistance.

[0040] For example three, please refer to Figure 1-11 , this embodiment three makes the following improvements on the basis of embodiment two. Specifically, an axial hole 29 is provided on the top of the sintering machine; a limiting groove 30 is provided on the inner wall of the axial hole 29; the material spreading part 6 includes a shaft sleeve 31 rotatably set in the axial hole 29; a ring rail 32 rotatably matched with the limiting groove 30 is fixed to the outer peripheral side of the shaft sleeve 31; the material spreading part 6 also includes a U-shaped seat 33 fixed to the top of the sintering machine; an electric push rod 34 is fixedly installed on the top of the U-shaped seat 33; an insulating rod 35 is fixed to the telescopic end of the electric push rod 34, which passes through the shaft sleeve 31 and extends into the interior of the sintering machine.

[0041] A connecting plate 36 is fixed to the side surface of the sleeve 31 below the annular rail 32; a first connecting ring 37 is fixed between the two ends of the connecting plate 36; a number of ear plates 38 are evenly fixed to the outer side surface of the first connecting ring 37; a fan-shaped plate 39 is rotatably provided on the ear plate 38; extension plates 40 are symmetrically fixed to the side surfaces of the fan-shaped plate 39; a rotating shaft is fixed between the two extension plates 40 and rotates with the ear plate 38; a cross plate 41 is fixed to the bottom end of the insulation rod 35; a second connecting ring 42 is fixed between the two ends of the cross plate 41; a number of support rods 43 are evenly fixed to the surface of the second connecting ring 42; a support ring 44 is fixed between the ends of each support rod 43.

[0042] A third motor 45 is fixedly mounted on the top of the sintering machine; a drive shaft 46 is fixed to the output end of the third motor 45; a fourth gear ring 47 is fixed to the peripheral side of the drive shaft 46; a fifth gear ring 48 meshing with the fourth gear ring 47 is fixed to the outer peripheral side of the sleeve 31.

[0043] Working principle of the third embodiment: In the initial state, each group of fan-shaped plates 39 is in a flat state. The third motor 45 is controlled to start and drive the drive shaft 46 to rotate slowly through the reducer, thereby driving the fourth ring gear 47 to rotate, and then driving the fifth ring gear 48 to rotate, and then driving each group of fan-shaped plates 39 in the flat state to rotate slowly. The iron ore powder in the transfer chamber 14 falls onto the surface of the slowly rotating fan-shaped plates 39 through the feed port 16, realizing the flattening of the iron ore powder. The iron ore powder is flatly spread on the surface of each group of fan-shaped plates 39 in the flat state, which increases the heat exchange area and is directly heated by the heat inside the sintering machine, thereby improving the preheating effect.

[0044] When it is necessary to sinter the iron ore powder on the surface of each group of fan-shaped plates 39 in a flat state, the electric push rod 34 is controlled to start and extend it downward, thereby driving the insulating rod 35 at its end together with the second connecting ring 42 to move downward, causing the support ring 44 to move downward, and the fan-shaped plates 39 rotate downward under the action of gravity, so that the iron ore powder on the surface of each group of fan-shaped plates 39 falls into the interior of the sintering machine for subsequent sintering, avoiding the accumulation of iron ore powder and improving the subsequent sintering effect and efficiency; after completing the unloading of the iron ore powder on the surface of each group of fan-shaped plates 39, the electric push rod 34 is controlled to start and retract it upward, driving the second connecting ring 42 together with the support ring 44 to move upward, thereby driving the combined fan-shaped plates 39 to rotate upward and reset to a flat state.

[0045] For example 4, please refer to Figure 1-11 , this fourth embodiment makes the following improvements on the basis of the third embodiment. Specifically, a reciprocating screw 49 is fixed to the end of the drive shaft 46; a slide groove 50 is opened on the side of the U-shaped seat 33; a slide rod 51 is fixed between the inner walls of the slide groove 50; a slider 52 is slidably provided between the inner walls of the slide groove 50 and is slidably matched with the slide rod 51; an ear rod 53 is fixed to one side of the slider 52; and a sliding sleeve 54 adapted to the reciprocating screw 49 is fixed to the end of the ear rod 53.

[0046] A support block 55 is fixed to the other opposite side of the slider 52; a piston rod 56 is fixed to the surface of the support block 55; a piston plate is fixed to the end of the piston rod 56; a piston cylinder 57 that slides with the piston plate is fixedly installed on the side of the U-shaped seat 33; an exhaust pipe 58 is provided at the end of the piston cylinder 57, and an exhaust pipe 59 is provided at the peripheral side near the end thereof; a one-way valve is provided on both the exhaust pipe 58 and the exhaust pipe 59; an air intake pipe 60 and an air delivery pipe 61 are provided on both sides of the inner wall of the storage chamber 4 in sequence; a connecting pipe 62 is provided through the top of the sintering machine; the air intake pipe 60 and the exhaust pipe 58, and the exhaust pipe 59 and the connecting pipe 62 are respectively connected by heat-resistant hoses.

[0047] Working principle of the fourth embodiment: A sliding block adapted to the reciprocating screw 49 is provided inside the sliding sleeve 54. The reciprocating screw 49 is a form of a three-dimensional cam pair, which is manifested as two thread grooves with the same pitch and opposite rotation directions, and the two ends are connected by a transition curve. Through the rotation of the reciprocating screw 49, the side of the spiral groove pushes the sliding block placed in the spiral groove to perform axial reciprocating motion.

[0048] By setting a one-way valve on the exhaust pipe 58, the hot air inside the piston cylinder 57 can only be sent into the storage chamber 4 through the exhaust pipe 58, the corresponding heat-resistant hose, and the air intake pipe 60 in sequence, so as to preheat the iron ore powder inside the charging box 1; by setting a one-way valve on the exhaust pipe 59, the hot air in the sintering machine is drawn into the piston cylinder 57 through the connecting pipe 62, the corresponding heat-resistant hose, and the exhaust pipe 59 in sequence; the air supply pipe 61 is used to discharge the air in the storage chamber 4, so as to realize the flow of hot air inside the storage chamber 4.

[0049] The rotation of the drive shaft 46 drives the reciprocating screw 49 to rotate, thereby driving the sleeve 54 to perform reciprocating lifting motion, thereby driving the slider 52 connected to the piston rod 56 to perform reciprocating lifting motion, and then driving the piston plate to perform reciprocating lifting motion inside the piston cylinder 57, thereby continuously drawing the hot air inside the sintering machine into the sintering machine.

[0050] For example five, please refer to Figure 1-11 , this fifth embodiment makes the following improvements on the basis of the fourth embodiment. Specifically, a plurality of heat-conducting fins 63 are evenly fixed on the inner circumferential side of the heat exchange tube 7; guide rods 64 are symmetrically fixed on the inner circumferential side of the heat exchange tube 7 on both sides of the corresponding heat-conducting fins 63; a slide plate 65 is slidably provided on the guide rod 64; a scraper 66 is fixed on the side of the slide plate 65; a U-shaped plate 67 is fixed between the two scrapers 66; a support rod 68 is fixed to the bottom surface of the U-shaped plate 67; a guide ball 69 is fixed to the end of the support rod 68; an extrusion spring 70 mounted on the slide rod 51 is fixed between the slide plate 65 and the inner circumferential side of the heat exchange tube 7.

[0051] A spoke plate 71 is fixed to the output end of the exhaust fan 8 ; a guide ring 72 is fixed between the two ends of the spoke plate 71 ; and a plurality of arc-shaped guide plates 73 are evenly fixed on the outer peripheral side of the guide ring 72 .

[0052] Working principle of the fifth embodiment: By controlling and starting the exhaust fan 8, the hot air inside the sintering machine is drawn into the heat exchange tube 7 through the exhaust pipe 9. The heat exchange tube 7 preheats the iron ore powder inside the heat exchange chamber 5. The arrangement of the heat-conducting fins 63 further increases the heat exchange area between the heat exchange tube 7 and the hot air, thereby further improving the heat exchange effect.

[0053] Under the elastic force of the extrusion spring 70, the guide ball 69 is driven to press against the outer peripheral side surface of the guide ring 72. During the rotation of the output end of the exhaust fan 8, the spoke plate 71 is driven to rotate together with the guide ring 72. When the arc guide plate 73 rotates to contact the guide ball 69, the rotating arc guide plate 73 rotates to squeeze the guide ball 69, driving the guide ball 69 connecting the scraper 66 to slide toward the direction close to the inner wall of the heat exchange tube 7. The corresponding extrusion spring 70 is compressed. When the guide ball 69 slides from the highest point of the arc guide plate 73 toward the outer peripheral side surface of the guide ring 72, the elastic reset force of the extrusion spring 70 drives the guide ball 69 connecting the scraper 66 to slide toward the direction away from the inner wall of the heat exchange tube 7, thereby realizing reciprocating scraping of the side surface of the heat-conducting fin 63, preventing dust from adhering to the side surface of the heat-conducting fin 63 and affecting the heat exchange effect, thereby further improving the preheating effect.

[0054] Obviously, the embodiments described above 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 should fall within the scope of protection of the present invention.

[0055] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0056] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0057] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

[0058] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A sintering machine feeding system, comprising a charging box fixedly mounted on the top of the sintering machine; characterized in that: An annular plate is rotatably provided inside the charging box; a feeding port is provided on the peripheral side of the annular plate; the annular plate divides the interior of the charging box into a storage chamber and a preheating chamber from top to bottom; a material laying portion is provided through the top of the sintering machine; A heat exchange tube is provided inside the preheating chamber; an exhaust fan is fixedly installed inside the heat exchange tube; an exhaust pipe is provided on the top of the sintering machine; one end of the heat exchange tube is connected to the exhaust pipe; The heat exchange tube is rotatably provided with a first rotating part and a second rotating part which are coaxially arranged; the first rotating part and the second rotating part both include a rotating ring which rotates with the heat exchange tube; a plurality of partitions are evenly fixed on the side of the rotating ring; the partitions on the sides of the two rotating rings are arranged alternately in sequence; and a transfer cavity is formed between adjacent partitions.

2. A sintering machine feeding system according to claim 1, characterized in that: A sealing plate is slidably provided inside the charging box; the bottom of the preheating chamber is open; a feed port is provided on the top of the sintering machine; support plates are symmetrically fixed to the inner wall of the feed port; an arc-shaped plate is fixed between the support plate and the bottom surface of the charging box; A first gear ring is fixed on the side of the annular plate to rotate with the side of the charging box; a first motor is installed on the top of the sintering machine; and a first gear meshing with the first gear ring is fixed on the output end of the first motor.

3. A sintering machine feeding system according to claim 2, characterized in that: The charging box is provided with annular grooves on both sides thereof; the second gear ring and the third gear ring which are rotatably matched with the corresponding annular grooves are fixed to the sides of the two rotating rings respectively; A second motor is fixedly installed on two opposite sides of the charging box; second gears that mesh with the second gear ring and the third gear ring are respectively fixed on the output ends of the two second motors; a plurality of extension rods are provided on the opposite sides of the partition on the second rotating part; and a crushing head is fixed on the end of the extension rod.

4. A sintering machine feeding system according to claim 3, characterized in that: The top of the sintering machine is provided with an axial hole; the inner wall of the axial hole is provided with a limiting groove; the material laying part includes a shaft sleeve rotatably arranged in the axial hole; the outer peripheral side of the shaft sleeve is fixed with an annular rail rotatably matched with the limiting groove; The material laying part also includes a U-shaped seat fixed on the top of the sintering machine; an electric push rod is fixedly installed on the top of the U-shaped seat; and an insulating rod is fixed on the telescopic end of the electric push rod and extends into the interior of the sintering machine through the shaft sleeve.

5. A sintering machine feeding system according to claim 4, characterized in that: A connecting plate is fixed to the circumferential side of the sleeve below the annular rail; a first connecting ring is fixed between the two ends of the connecting plate; a plurality of lugs are evenly fixed to the outer circumferential side of the first connecting ring; a sector plate is rotatably provided on the lug plate; extension plates are symmetrically fixed to the circumferential side of the sector plate; a rotating shaft is fixed between the two extension plates to rotate with the lug plates; A horizontal plate is fixed at the bottom end of the insulation rod; a second connecting ring is fixed between the two ends of the horizontal plate; a plurality of support rods are evenly fixed on the surface of the second connecting ring; and a support ring is fixed between the ends of each support rod.

6. A sintering machine feeding system according to claim 5, characterized in that: A third motor is fixedly mounted on the top of the sintering machine; a drive shaft is fixed to the output end of the third motor; a fourth gear ring is fixed to the circumferential side of the drive shaft; and a fifth gear ring is fixed to the outer circumferential side of the sleeve to mesh with the fourth gear ring. A reciprocating screw is fixed to the end of the drive shaft; a sliding groove is provided on the side of the U-shaped seat; a sliding rod is fixed between the inner walls of the sliding groove; a slider is slidingly arranged between the inner walls of the sliding groove and slidably cooperates with the sliding rod; an ear rod is fixed to one side of the slider; a sliding sleeve adapted to the reciprocating screw is fixed to the end of the ear rod.

7. A sintering machine feeding system according to claim 6, characterized in that: A support block is fixed to the other opposite side of the slider; a piston rod is fixed to the surface of the support block; a piston plate is fixed to the end of the piston rod; a piston cylinder that slides in cooperation with the piston plate is fixed to the side of the U-shaped seat; The end of the piston cylinder is connected to an exhaust pipe, and the peripheral side thereof is connected to an exhaust pipe near the end thereof; both the exhaust pipe and the exhaust pipe are provided with a one-way valve; An air inlet pipe and an air delivery pipe are sequentially connected on both sides of the inner wall of the storage chamber; a connecting pipe is provided through the top of the sintering machine; the air inlet pipe and the exhaust pipe, the air extraction pipe and the connecting pipe are respectively connected through heat-resistant hoses.

8. A sintering machine feeding system according to claim 7, characterized in that: A plurality of heat-conducting fins are evenly fixed on the inner circumference of the heat exchange tube; guide rods are symmetrically fixed on the inner circumference of the heat exchange tube on both sides of the corresponding heat-conducting fins; a slide is slidably provided on the guide rod; a scraper is fixed on the side of the slide; A U-shaped plate is fixed between the two scrapers; a support rod is fixed to the bottom surface of the U-shaped plate; a guide ball is fixed to the end of the support rod; an extrusion spring sleeved on the slide rod is fixed between the slide plate and the inner peripheral side of the heat exchange tube; A spoke plate is fixed at the output end of the exhaust fan; a guide ring is fixed between the two ends of the spoke plate; and a plurality of arc-shaped guide plates are evenly fixed on the outer peripheral side surface of the guide ring.

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