Sintering raw material conveying device for steel production

Abstract

The invention provides a sintering raw material conveying device for steel production, and relates to the technical field of steel smelting equipment. The device comprises guide protection plate frames which are symmetrically arranged, a discharging shell located at the discharging end and a belt type conveying structure which is arranged in a triangular mode. A plurality of partition plate assemblies are distributed on the outer surface of the belt type conveying structure in the circumferential direction, and a conveying groove used for containing materials is formed between every two adjacent partition plate assemblies. A material stirring and blowing assembly capable of freely rotating is arranged in the discharging shell. When the conveying groove runs to the discharging end, the moving partition plate assembly can drive the material stirring and blowing assembly to rotate. The rotating material shifting and blowing assembly shifts the materials into the discharging shell on one hand and sprays airflow into the conveying groove on the other hand, so that the adhered residual raw materials are removed. By means of the mode of combining physical stirring and airflow cleaning, the technical problems that a conveying device is not thorough in discharging and affects the batching accuracy are solved, equivalent conveying of sintering raw materials is achieved, and the batching quality of sintered ore is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of steel smelting equipment technology, and in particular to a sintering raw material conveying device for steel production. Background Technology

[0002] Steel production is a complex process, mainly including ironmaking, steelmaking, and rolling. The core of the ironmaking process is reducing raw materials such as iron ore into molten iron at high temperatures, while sintering is a crucial pretreatment step before ironmaking. Sintering involves mixing iron ore powder, flux (such as limestone), fuel (such as coke powder), and return ore in a specific ratio, then igniting the mixture in a sintering machine to partially melt and bind it together into a man-made rich ore (sinter) with sufficient strength and particle size. High-quality sinter is the cornerstone of stable and efficient blast furnace production.

[0003] In the aforementioned sintering process, the precise batching and conveying of various raw materials is the first crucial step in ensuring the stability of the sinter composition and its quality. Currently, the commonly used belt conveyor system is prone to dust generation and material adhesion when conveying powdery or fine-grained sintering raw materials, leading to unstable conveying volumes and consequently affecting the accuracy of subsequent batching. Especially at the discharge end of the conveyor, materials easily adhere to the conveyor belt or baffle surface, preventing complete and clean discharge and causing deviations between the actual raw material ratio and the set values. These deviations accumulate in the sintering process, affecting the chemical composition, physical strength, and metallurgical properties of the sinter, ultimately adversely impacting the smooth operation of the blast furnace and the quality of the molten iron. Summary of the Invention

[0004] The purpose of this invention is to provide a sintering raw material conveying device for steel production, so as to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A sintering raw material conveying device for steel production includes a guide plate frame, a discharge shell, and a belt conveyor structure. Two guide plate frames are symmetrically arranged on both sides of the belt conveyor structure, with each end supported by a lower support frame. The belt conveyor structure is arranged in a triangular pattern, and its outer surface is adorned with multiple partition assemblies distributed circumferentially. The ends of the partition assemblies slide against the side walls of the guide plate frames to provide support and guidance. A conveying trough is formed between adjacent partition assemblies. The conveying trough transports the sintering raw material from the receiving end to the discharge end of the belt conveyor structure. The discharge shell is located at the discharge end of the belt conveyor structure and contains a freely rotatable material-pushing air assembly. This assembly sprays airflow into the conveying trough at the discharge end of the belt conveyor structure. The partition assemblies at the discharge end move with the belt conveyor structure and act on the material-pushing air assembly, causing it to rotate. The rotating material-pushing air assembly pushes the sintering raw material from the conveying trough into the discharge shell.

[0007] Based on the above technical solutions, the present invention also provides the following optional technical solutions:

[0008] In one alternative: the discharge housing has a recessed feed inlet on the side facing the belt conveyor structure, and the side of the recessed feed inlet is in matching contact with the end of the guide guard plate; the bottom of the discharge housing is provided with a discharge port for connecting to the feed port of the sintering equipment.

[0009] In one alternative embodiment: the material feeding and blowing assembly includes a hollow horizontal shaft, a blower, a sleeve, and multiple tubular material feeding components. The hollow horizontal shaft is fixed inside the discharge housing along the width direction of the belt conveyor structure. The blower is located on the side wall of the discharge housing, and its air outlet is connected to one end of the hollow horizontal shaft. The sleeve is rotatably fitted onto the hollow horizontal shaft. The multiple tubular material feeding components are divided into multiple groups, and the multiple groups of tubular material feeding components are circumferentially distributed on the outer wall of the sleeve. One end of each tubular material feeding component is connected to the interior of the hollow horizontal shaft, and the other end can extend into the conveying trough at the material discharge end of the belt conveyor structure.

[0010] In one alternative: the outer wall of the hollow transverse shaft is provided with an air duct opening facing the belt conveyor structure, and the tubular feeding component is a conical structure and is connected to the interior of the hollow transverse shaft through the tubular feeding component.

[0011] In one alternative embodiment: the belt conveyor structure includes a belt body and three pulley sections, which are arranged in a triangular configuration between two guide guard frames and rotate in cooperation. The belt body surrounds the outside of the three pulley sections, and one end of one of the pulley sections is connected to a drive box located on the outer wall of the guide guard frame. A row of idler roller modules is also provided between the two guide guard frames. The idler roller modules are located inside the belt body and are used to roll and support the portion of the belt body used to carry the sintering raw materials.

[0012] In one alternative embodiment: the sidewall of the guide guard plate frame is provided with a slide section along its edge; the partition assembly includes a frame section and a partition section; the two sides of the frame section contact the inner wall of the guide guard plate frame and are connected to the skeleton inside the belt; the top of the frame section has an upper insertion port and the partition section passes through the upper insertion port to the inner side of the frame section; the top of both sides of the frame section is provided with guide wheel sections, which are located inside the corresponding slide sections and roll in cooperation with their inner walls; the top of the partition section is provided with an upper strip and at least one screw is installed on the side of the upper strip; the top side of the frame section is provided with at least one threaded seat and the screw is threadedly engaged with the threaded seat.

[0013] In one alternative: the guide plate frame has at least one air hole at the end of the belt conveyor structure at the unloading end, and the air hole can alternately communicate with the conveying groove at the unloading end of the belt conveyor structure; a pulsed jet assembly is provided on the outer wall of the guide plate frame, the pulsed jet assembly is connected to the air hole, and the pulsed jet assembly is also connected to one of the pulleys, and the pulley can act on the pulsed jet assembly when rotating, so as to intermittently introduce airflow into the air hole.

[0014] In one alternative embodiment: the shaft end of the pulley portion is provided with an annulus and the inner wall of the annulus has multiple circumferentially distributed circular protrusions; the pulsed jet assembly includes an air injection cylinder and a front piston rod; the air injection cylinder is fixed to the outer wall of the guide plate frame and has an axially movable piston plate inside; one end of the front piston rod is connected to the piston plate, and the other end extends to the inner side of the annulus and is provided with a bearing roller; a rear piston rod is fixed to the other end face of the piston plate, and a rear circular plate is provided at the end of the rear piston rod away from the piston plate; the rear circular plate is connected to the end of the air injection cylinder by an air intake spring; an air inlet and at least one air outlet are provided on the outer wall of the air injection cylinder near the end; both the air outlet and the air inlet have a one-way valve, and the air outlet is connected to the valve.

[0015] By adopting the above technical solution, the present invention has the following beneficial effects:

[0016] This invention utilizes multiple equal-volume "conveyor troughs" formed by baffle assemblies on the conveyor belt, ensuring a relatively constant volume of material conveyed in each conveying cycle. This achieves quantitative and batch-based conveying of sintering raw materials, laying a solid foundation for subsequent precise batching. The invention also incorporates a freely rotatable material-dispensing and blowing assembly at the discharge end. This assembly, through physical dispensing, completely removes falling material from the conveyor troughs; simultaneously, it effectively blows away fine powder adhering to the side walls of the guide guard and the surface of the baffle assembly via directional airflow. This combined mechanical and pneumatic cleaning method ensures that each batch of material is delivered completely and cleanly into the discharge shell, thoroughly avoiding proportioning distortion and cross-contamination problems caused by material residue. Furthermore, the rotation of the material-dispensing and blowing assembly in this invention does not require an additional power unit; instead, it is automatically triggered and driven by the movement of the baffle assembly at the discharge end of the conveyor belt. This achieves efficient energy utilization, simplifies the device structure, and reduces equipment costs and maintenance complexity. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the sintering raw material conveying device for steel production in this invention.

[0019] Figure 2 This is a schematic diagram of the distribution structure of the discharge shell and the belt conveyor structure in this invention.

[0020] Figure 3 This is a schematic diagram of the material feeding and blowing assembly in this invention.

[0021] Figure 4 This is a schematic diagram of the hollow transverse shaft structure in this invention.

[0022] Figure 5 This is a schematic diagram of the guide guard plate frame structure in this invention.

[0023] Figure 6 This is a schematic diagram of the partition assembly structure in this invention.

[0024] Figure 7 This is a schematic diagram of the frame structure in this invention.

[0025] Figure 8 for Figure 1 Enlarged structural diagram at point A in the middle.

[0026] Reference numerals in the attached drawings: Guide guard plate frame 100, slide section 110, discharge shell 200, discharge port 210, lower support frame 300, belt conveyor structure 400, pulley section 410, belt body 420, ring body 430, circular protrusion 440, partition assembly 500, frame section 510, partition section 520, upper insertion port 530, threaded seat 531, guide wheel section 540, upper strip 550, screw. Component 560, feeding and blowing assembly 600, hollow horizontal shaft part 610, blower 620, sleeve part 630, tubular feeding component 640, air priming notch 650, idler roller module 700, pulse jet assembly 800, air injection cylinder 810, front piston rod 820, air outlet pipe 830, air inlet end 840, bearing roller 850, rear piston rod 860, rear circular plate 870, suction spring 880. Detailed Implementation

[0027] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] The left, right, up, and down positions of the various components shown in the attached diagram are just one arrangement method; the specific positions should be set according to specific needs.

[0029] In one embodiment, such as Figure 1 and Figure 2 As shown, a sintering raw material conveying device for steel production includes a guide plate frame 100, a discharge shell 200, and a belt conveyor structure 400. Two guide plate frames 100 are symmetrically arranged on both sides of the belt conveyor structure 400, and the bottom ends of each guide plate frame 100 are supported by two lower support frames 300. The belt conveyor structure 400 is arranged in a triangular pattern, and its outer surface is distributed with multiple partition assemblies 500 along its circumference. The ends of the partition assemblies 500 slide against the side walls of the guide plate frame 100 to provide support and guidance. A conveying trough is formed between two adjacent partition assemblies 500. The conveying trough is used to transport sintering raw materials from the receiving end of the belt conveyor structure 400 to the unloading end; the discharge shell 200 is located at the unloading end of the belt conveyor structure 400, and a freely rotatable material-pushing air assembly 600 is installed inside it. The material-pushing air assembly 600 is used to spray airflow into the conveying trough at the unloading end of the belt conveyor structure 400. The partition assembly 500 at the unloading end moves with the belt conveyor structure 400 and can act on the material-pushing air assembly 600 to make it rotate. The rotating material-pushing air assembly 600 can push the sintering raw materials from the conveying trough into the discharge shell 200.

[0030] In this embodiment of the invention, the sintering raw material enters the conveying trough from the receiving end of the belt conveyor structure 400. Each conveying trough has the same spatial size, enabling equal-volume conveying of the sintering raw material. The partition assembly 500 moves stably along with the belt conveyor structure 400 under the guidance and support of the guide guard frame 100, ensuring stable conveying of the sintering raw material. When the sintering raw material is conveyed to the unloading end, the conveying trough moves downward, and its opening gradually changes from an upward state to a downward state. The sintering raw material detaches from the conveying trough and falls into the discharge shell 200. Simultaneously, at the unloading end of the belt conveyor structure 400... During movement, the partition assembly 500 acts on the feeding and blowing assembly 600, causing the feeding and blowing assembly 600 to rotate. The portion of the feeding assembly 600 extending into the feeding trough acts on the sintering raw material, allowing it to fully enter the discharge shell 200. The feeding and blowing assembly 600 also sprays airflow into the feeding trough. The airflow acts on the sintering raw material adhering to the side wall of the guide guard plate 100 and the surface of the partition assembly 500, causing it to detach and follow the airflow into the discharge shell 200. This ensures that the sintering raw material detaches from the feeding trough, guaranteeing the precise quantity of each raw material required for steel sintering.

[0031] In one embodiment, such as Figures 1-3 As shown, the discharge shell 200 has a concave feed port on the side facing the belt conveyor structure 400, and the side of the concave feed port is in matching contact with the end of the guide plate frame 100; the bottom of the discharge shell 200 is provided with a discharge port 210, which is used to connect to the feed port of the sintering equipment; in this embodiment of the invention, the structure of the end of the guide plate frame 100 matching the concave feed port can avoid the gap between the guide plate frame 100 and the discharge shell 200 at the discharge end of the belt conveyor structure 400, thereby preventing the sintering raw material from coming out of the gap and ensuring that the sintering raw material enters the sintering equipment through the discharge port 210.

[0032] In one embodiment, such as Figures 1-4As shown, the material feeding and blowing assembly 600 includes a hollow horizontal shaft portion 610, a blower 620, a sleeve portion 630, and multiple tubular material feeding components 640. The hollow horizontal shaft portion 610 is fixed inside the discharge housing 200 along the width direction of the belt conveyor structure 400. The blower 620 is located on the side wall of the discharge housing 200, and its air outlet end is connected to one end of the hollow horizontal shaft portion 610. The sleeve portion 630 is rotatably fitted onto the hollow horizontal shaft portion 610. The multiple tubular material feeding components 640 are divided into multiple groups, and the multiple groups of tubular material feeding components 640 are circumferentially distributed on the outer wall of the sleeve portion 630. One end of the tubular material feeding component 640 is connected to the interior of the hollow horizontal shaft portion 610, and the other end can extend into the conveying groove at the material discharge end of the belt conveyor structure 400. In this embodiment of the invention, in the initial state, one group of tubular material feeding components faces the belt conveyor structure 400. The end of 640 is located in the conveying trough, which moves along the edge of the guide plate frame 100. The partition assembly 500 pushes the tubular material feeder 640 pointing towards the belt conveyor structure 400 downwards. The tubular material feeder 640 drives the sleeve part 630 to rotate. Therefore, each set of tubular material feeders 640 maintains a rotating state. When they rotate to the side where the belt conveyor structure 400 is located, they can be in the corresponding conveying trough. Then, by using their rotation state, the sintering raw material in the conveying trough is fed into the discharge shell 200. At the same time, the blower 620 introduces airflow into the hollow horizontal shaft part 610. The airflow is transmitted through the hollow horizontal shaft part 610 and the sleeve part 630 to the inside of the tubular material feeder 640. The tubular material feeder 640 is sprayed into the conveying trough by the airflow, thereby carrying away the sintering raw material attached to the side wall of the guide plate frame 100 and the side wall of the partition assembly 500.

[0033] In one embodiment, such as Figures 1-5 As shown, the hollow horizontal shaft portion 610 has an air intake notch 650 on its outer wall facing the belt conveyor structure 400. The tubular feeding member 640 has a conical structure and is connected to the interior of the hollow horizontal shaft portion 610. In this embodiment of the invention, the air intake notch 650 can guide the airflow to one or two sets of tubular feeding members 640 located on the side of the belt conveyor structure 400. The airflow of the other sets is not connected to the hollow horizontal shaft portion 610, which can prevent the airflow from spraying out towards the interior of the discharge shell 200 and ensure that the airflow is blown into the conveying trough in an orderly manner.

[0034] In one embodiment, such as Figure 1 , Figure 2 , Figure 5As shown, the belt conveyor structure 400 includes a belt body 420 and three pulley sections 410. The three pulley sections 410 are arranged in a triangular configuration between two guide guard plate frames 100 and rotate in cooperation with each other. The belt body 420 surrounds the outside of the three pulley sections 410. One end of one of the pulley sections 410 is connected to a drive box located on the outer wall of the guide guard plate frame 100. A row of idler roller modules 700 is also provided between the two guide guard plate frames 100. The idler roller modules 700 are located inside the belt body 420 and are used to roll and support the part of the belt body 420 that carries the sintering raw materials. In this embodiment of the invention, the drive box adopts a reducer structure, which drives the pulley sections 410 to rotate so that the belt body 420 moves cyclically. The partition assembly 500 moves with the belt conveyor structure 400 to push the sintering raw materials forward. The idler roller modules 700 can support the part of the belt body 420 that carries the sintering raw materials, preventing it from sinking downwards and increasing the conveying load.

[0035] In one embodiment, such as Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 7 As shown, the guide guard plate frame 100 has a slide rail portion 110 along its edge on its side wall. The partition assembly 500 includes a frame portion 510 and a partition portion 520. The frame portion 510 contacts the inner wall of the guide guard plate frame 100 on both sides and is connected to the skeleton inside the belt body 420. The top of the frame portion 510 has an upper insertion port 530, and the partition portion 520 passes through the upper insertion port 530 to the inner side of the frame portion 510. The top of both sides of the frame portion 510 is provided with a guide wheel portion 540, which is located inside the corresponding slide rail portion 110 and rolls in cooperation with its inner wall. The top of the partition portion 520 is provided with an upper strip 550, and at least one screw member 5 is installed on the side of the upper strip 550. 60. At least one threaded seat 531 is provided on the top side of the frame portion 510, and the screw member 560 is threadedly engaged with the threaded seat 531. In this embodiment of the invention, the partition portion 520 is inserted into the frame portion 510 and fixed by the engagement of the screw member 560 and the threaded seat 531, dividing the space between the two guide guard plate frames 100 into multiple conveying slots. The partition portion 520 is separated by the connection state of the screw member 560 and the threaded seat 531 to adjust the size of each conveying slot. The guide wheel portion 540 rolls in the slide portion 110. Under the guidance and support of the slide portion 110, friction can be reduced while ensuring the stability of the partition assembly 500 moving with the belt conveyor structure 400.

[0036] In one embodiment, such as Figure 1 , Figure 2 , Figure 5 and Figure 8As shown, the guide plate frame 100 has at least one air hole 120 at the end of the belt conveyor structure 400 at the material feeding end. The air hole 120 can alternately communicate with the conveying trough at the material feeding end of the belt conveyor structure 400. A pulsed jet assembly 800 is provided on the outer wall of the guide plate frame 100. The pulsed jet assembly 800 is connected to the air hole 120 and is also connected to one of the pulleys 410. When the pulley 410 rotates, it can act on the pulsed jet assembly 800 to intermittently introduce airflow into the air hole 120. In this embodiment of the invention, while the belt conveyor structure 400 is conveying the sintering raw material, it acts on the pulsed jet assembly 800 through the pulley 410. The pulsed jet assembly 800 introduces pulsed airflow into the air hole 120. The pulsed airflow acts on the sintering raw material from the surface of the belt body 420 of the conveying trough to fully blow the sintering raw material out of the conveying trough.

[0037] In one embodiment, such as Figure 1 , Figure 2 , Figure 5 and Figure 8 As shown, the shaft end of the pulley portion 410 is provided with an annulus 430, and the inner wall of the annulus 430 has multiple circumferentially distributed circular protrusions 440. The pulsed jet assembly 800 includes an air injection cylinder 810 and a front piston rod 820. The air injection cylinder 810 is fixed to the outer wall of the guide plate frame 100, and has an axially movable piston plate inside. One end of the front piston rod 820 is connected to the piston plate, and the other end extends to the inner side of the annulus 430 and is provided with a receiving roller 850. A rear piston rod 860 is fixed to the other end face of the piston plate, and a rear circular plate 870 is provided at the end of the rear piston rod 860 away from the piston plate. The rear circular plate 870 is connected to the end of the air injection cylinder 810 by a suction spring 880. An air inlet 840 and an air inlet 840 are provided on the outer wall of the air injection cylinder 810 near the end. At least one exhaust pipe 830 is provided, and both the exhaust pipe 830 and the inlet end 840 are equipped with one-way valves. The exhaust pipe 830 is connected to the air hole 120. In this embodiment of the invention, the ring body 430 rotates with the pulley part 410 and uses multiple circular protrusions 440 to repeatedly act on the receiving roller 850. Under the elastic force of the suction spring 880, the front piston rod 820 and the piston plate reciprocate inside the gas injection cylinder 810. The cavity connected to the exhaust pipe 830 and the inlet end 840 is the gas injection chamber. The size of the internal space of the gas injection chamber changes reciprocally. When the internal space of the gas injection chamber increases, the external airflow enters the gas injection chamber through the inlet end 840. When the internal space of the gas injection chamber decreases, the internal airflow enters the conveying trough through the exhaust pipe 830 and the air hole 120, so as to realize that the sintering raw material is fully separated from the conveying trough.

[0038] The above embodiment provides a sintering raw material conveying device for steel production, the working principle of which is as follows:

[0039] Sintering raw materials (such as mineral powder, flux, fuel, etc.) are first fed onto a belt conveyor structure 400 located at the receiving end. Because the belt conveyor structure 400 is arranged in a triangular pattern, multiple baffle assemblies 500 are evenly distributed circumferentially on its outer surface. Adjacent baffle assemblies 500 form fixed-volume conveying troughs. The raw materials fall into these conveying troughs, thus achieving quantitative loading of materials for each conveying cycle and ensuring the accuracy of the raw material ratios required for subsequent sintering processes.

[0040] During the conveying process, the belt conveyor structure 400 drives all the partition assemblies 500 to move along its annular path; the guide guards 100, symmetrically arranged on both sides of the belt conveyor structure 400, have their inner walls slidingly engaged with the ends of the partition assemblies 500; this design provides key lateral support and motion guidance for the partition assemblies 500, effectively preventing the partition assemblies 500 from swaying or deviating during the material carrying and movement process, ensuring that each conveying trough can keep its opening facing upward in the horizontal conveying section, so that the sintering raw materials are smoothly and reliably conveyed from the receiving end to the unloading end without spillage.

[0041] When the conveyor trough carrying the sintering raw materials moves to the unloading end of the belt conveyor structure 400, i.e., the apex or turning point of the triangular structure, the spatial orientation of the conveyor trough changes as the conveyor belt path changes, and its opening gradually changes from facing upwards to facing downwards. At this time, most of the sintering raw materials in the conveyor trough begin to naturally detach from the trough under the action of gravity and fall downwards.

[0042] To ensure that sintering raw materials with strong adhesion or potential jamming are completely and thoroughly discharged from the conveying trough, the device is equipped with a crucial, freely rotatable material-discharging and blowing assembly 600 within the discharge casing 200. Its triggering and operating mechanism is as follows:

[0043] When the conveying trough flips to the unloading end, the corresponding partition assembly 500 will contact and act on specific parts of the feeding blowing assembly 600, such as the lever or blade, as it continues to move, thereby driving the feeding blowing assembly 600 to rotate.

[0044] The rotating material blowing assembly 600 has some structures such as the paddles that extend into or sweep over the inside of the conveying trough in the unloading state, applying a mechanical pushing force to the sintering raw materials remaining in the trough, scraping off and pushing out any material blocks that may adhere or accumulate, so that they are fully separated from the conveying trough and fall into the discharge shell 200.

[0045] Meanwhile, the material feeding and blowing assembly 600 is also designed with an air jet function. During its rotation, it sprays high-speed airflow onto the conveying trough, the surface of the adjacent partition assembly 500, and the end sidewall of the guide guard plate frame 100. This airflow effectively blows off fine powdery raw materials that are slightly attached to the metal surface, achieving pneumatic cleaning of the working surfaces of the conveying trough and related components, further eliminating material residue and cross-contamination, and ensuring the accurate weight of material conveyed each time.

[0046] All sintering raw materials discharged from the conveyor trough, including those falling by gravity, mechanically dislodging, and air-blowing, fall into the sealed discharge shell 200 below. The discharge shell 200 has a recessed inlet on the side facing the belt conveyor structure 400, and the edge of this inlet closely matches the end of the guide guard plate 100, forming a seamless interface that effectively prevents leakage of raw materials at this critical junction. Finally, the sintering raw materials collected in the discharge shell 200 are discharged through the discharge port 210 at its bottom and can directly and continuously enter the inlet of the downstream sintering equipment, completing the entire conveying process.

[0047] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

Claims

1. A sintering raw material conveying device for steel production, comprising a guide plate frame, a discharge shell, and a belt conveyor structure, wherein two guide plate frames are symmetrically arranged on both sides of the belt conveyor structure, and the bottom of each end of the guide plate frame is supported by two lower supports, characterized in that... The belt conveyor structure is arranged in a triangular shape, and multiple partition assemblies are distributed along its circumference on its outer surface. The ends of the partition assemblies slide in cooperation with the side wall of the guide guard plate to provide support and guidance. A conveying trough is formed between two adjacent partition assemblies. The conveying trough is used to transport the sintering raw material from the receiving end of the belt conveyor structure to the unloading end. The discharge shell is located at the unloading end of the belt conveyor structure. Inside it is a freely rotatable material-pushing and blowing assembly. The material-pushing and blowing assembly sprays airflow into the conveying trough at the unloading end of the belt conveyor structure. The partition assembly at the unloading end moves with the belt conveyor structure and can act on the material-pushing and blowing assembly to make it rotate. The rotating material-pushing and blowing assembly can push the sintering raw material from the conveying trough into the discharge shell.

2. The sintering raw material conveying device for steel production according to claim 1, characterized in that, The discharge shell has a recessed feed inlet on the side facing the belt conveyor structure, and the side of the recessed feed inlet is in matching contact with the end of the guide guard plate frame. The bottom of the discharge shell is provided with a discharge port, which is used to connect to the feed port of the sintering equipment.

3. The sintering raw material conveying device for steel production according to claim 2, characterized in that, The material feeding and blowing assembly includes a hollow horizontal shaft, a blower, a sleeve, and multiple tubular material feeding components; The hollow horizontal shaft is fixed inside the discharge shell along the width direction of the belt conveyor structure. The blower is located on the side wall of the discharge shell, and its air outlet is connected to one end of the hollow horizontal shaft. The sleeve is rotatably fitted onto the hollow horizontal shaft. Multiple tubular feeding components are divided into multiple groups, and the multiple groups of tubular feeding components are circumferentially distributed on the outer wall of the sleeve. One end of the tubular feeding component is connected to the interior of the hollow horizontal shaft, and the other end can extend into the conveying trough at the feeding end of the belt conveyor structure.

4. The sintering raw material conveying device for steel production according to claim 3, characterized in that, The hollow horizontal shaft portion has an air intake notch on its outer wall facing the belt conveyor structure. The tubular feeding component has a conical structure and is connected to the interior of the hollow horizontal shaft portion.

5. The sintering raw material conveying device for steel production according to claim 1, characterized in that, The belt conveyor structure includes a belt body and three pulley sections; The three pulley sections are arranged in a triangular configuration between the two guide plate frames and rotate in cooperation. The belt body is wrapped around the outside of the three pulley sections, and the end of one of the pulley sections is connected to the drive box located on the outer wall of the guide plate frame. A row of idler roller modules is also provided between the two guide guard plate frames. The idler roller modules are located inside the belt body and are used to roll and support the part of the belt body that carries the sintering raw materials.

6. The sintering raw material conveying device for steel production according to claim 5, characterized in that, The guide guard plate frame has a slide rail section along its edge on its side wall, and the partition assembly includes a frame section and a partition section; The two sides of the frame portion contact the inner wall of the guide guard plate frame and are connected to the skeleton inside the belt. The top of the frame portion has an upper insertion port and the partition portion passes through the upper insertion port to the inner side of the frame portion. The top of both sides of the frame portion is provided with guide wheel portions, which are located inside the corresponding slide portions and roll in cooperation with their inner walls. The top of the partition section is provided with an upper strip and at least one screw is installed on the side of the upper strip. The top side of the frame section is provided with at least one threaded seat and the screw is threadedly engaged with the threaded seat.

7. The sintering raw material conveying device for steel production according to claim 6, characterized in that, The guide guard plate frame is provided with at least one air hole at the end of the belt conveyor structure at the unloading end, and the air hole can be connected to the conveying trough at the unloading end of the belt conveyor structure in turn. A pulsed jet assembly is provided on the outer wall of the guide plate frame. The pulsed jet assembly is connected to the air hole and is also connected to one of the pulleys. When the pulley rotates, it can act on the pulsed jet assembly to introduce airflow into the air hole.

8. The sintering raw material conveying device for steel production according to claim 7, characterized in that, The shaft end of the pulley section is provided with a ring body, and the inner wall of the ring body has multiple circumferentially distributed circular protrusions. The pulsed jet assembly includes an air injection cylinder and a front piston rod. The air injection cylinder is fixed on the outer wall of the guide guard plate frame and has an axially movable piston plate inside. One end of the front piston rod is connected to the piston plate, and the other end extends to the inner side of the ring and is provided with a bearing roller. A rear piston rod is fixed to the other end face of the piston plate, and a rear circular plate is provided at the end of the rear piston rod away from the piston plate. The rear circular plate is connected to the end of the air injection cylinder by an air intake spring. An air inlet and at least one air outlet are provided on the outer wall of the air injection cylinder near the end. Both the air outlet and the air inlet are equipped with a one-way valve, and the air outlet is connected to the valve.

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