A hot ore chute for a sintering machine

Abstract

The present invention provides a hot ore chute for a sintering machine, which belongs to the technical field of sintering machines. The chute motherboard includes a multi-level segregation device with different specifications. The chute motherboard is provided with a first segregation device, a second segregation device, a third segregation device, and a fourth segregation device, and the sintered red ore flow is repeatedly rolled and reflected by the first segregation device, the third segregation device, and the fourth segregation device, thereby completing the process segregation and buffering of sintered red ore of various particle sizes; and the fourth segregation device utilizes the change of the chute width to realize the forced centering and uniform distribution of the sintered red ore flow, so that the sintered red ore flow is forced to be centered and evenly distributed on the ring cooler unloading trolley after flowing out of the fourth segregation device.

Description

Technical Field

[0001] The invention belongs to the technical field of sintering machines, and in particular relates to a hot ore chute for a sintering machine. Background Art

[0002] The hot ore chute of the sintering machine is a key equipment unit of the finished sintered ore production line. Its process function is to receive the sintered red ore unloaded by the sintering machine, realize the primary crushing of the ore by a single roller, and then complete the segregation distribution of the sintered red ore to the ring cooler trolley.

[0003] The disadvantages of the existing sintering machine hot ore chute are:

[0004] (1) There is a large drop between the receiving surface of the hot ore chute of the sintering machine and the feeding surface of the ring cooler trolley. There is no effective buffer device along the chute. As a result, the sintered red ore after being fed through the hot ore chute is very easy to fall into powder and break. As a result, the particle size of the finished sintered ore does not meet the high quality requirements of the blast furnace process for sintered ore.

[0005] (2) The hot ore chute of the sintering machine has a poor effect on the segregation distribution of sintered red ore. The sintered ores of various specifications cannot be distributed in the optimal order of dropping, resulting in small particles of sintered ore distributed at the bottom of the material layer, causing poor air permeability of the entire material layer to be ring-cooled. As a result, the large pieces of sintered ore on the upper part of the material layer cannot achieve the target process cooling. After ring cooling, they still have a high temperature, which can easily burn the subsequent material conveying belt, restricting the stable and smooth production of the entire line.

[0006] (3) Under the direct scouring effect of high-temperature and large material flow, the lining and motherboard in the hot ore chute of the sintering machine are easily worn through and leaked, resulting in frequent "red ore collapse" failures in the hot ore chute of the sintering machine during non-maintenance periods, which poses a great safety and operational risk.

[0007] (4) The hot ore chute of the sintering machine is a key equipment unit that connects the upper sintering machine and the lower ring cooler. When the entire sintering line is shut down for maintenance, the project repair work inside the hot ore chute of the sintering machine is likely to cause the accumulated materials to fall off. As a result, the project repair work progress of this node equipment directly restricts the subsequent project repair work of the ring cooler receiving chute and the plate feeder, which prolongs the overall maintenance construction time of the sintering ore production line.

[0008] Therefore, designing a hot ore chute for a sintering machine with better segregation function is of great significance for improving the distribution segregation and ring cooling effect of sintered red ore, extending the service life of equipment units such as hot ore chute and belt material line, and ensuring the stability and smooth operation of the sintering ore production line during a long maintenance cycle. Summary of the Invention

[0009] The present invention provides a hot ore chute for a sintering machine to improve the distribution segregation and ring cooling effect of sintered red ore, extend the service life of equipment units such as the hot ore chute and belt material line, and help the smooth operation of the sintering ore production line.

[0010] In order to solve the above technical problems, the technical solution provided by the present invention is:

[0011] A sintering machine hot ore chute includes a chute motherboard, the chute motherboard includes: a first motherboard and a second motherboard, the first motherboard and the second motherboard are arranged opposite to each other, the first motherboard and the second motherboard are connected on both sides by a third motherboard and a fourth motherboard respectively, and the third motherboard and the fourth motherboard are arranged opposite to each other;

[0012] A first segregation device is fixed on the first motherboard;

[0013] The third motherboard, the second motherboard, and the fourth motherboard jointly fix the second segregation device, dividing the second segregation device into a third motherboard fixing section of the second segregation device, a second motherboard fixing section of the second segregation device, and a fourth motherboard fixing section of the second segregation device. The height of the second segregation device is lower than that of the first segregation device, so that the sintered red ore flow from the first segregation device to the second segregation device is tumbled and reflected multiple times, thereby achieving process segregation and buffering of sintered red ore of various particle sizes;

[0014] The longitudinal section of the first segregation device perpendicular to the direction of the first motherboard, the longitudinal section of the third motherboard fixing section of the second segregation device perpendicular to the direction of the third motherboard, the longitudinal section of the second motherboard fixing section of the second segregation device perpendicular to the direction of the second motherboard, and the longitudinal section of the fourth motherboard fixing section of the second segregation device perpendicular to the direction of the fourth motherboard are all grooves surrounded on three sides. The groove structure is utilized to form a buffer and segregation bed for sintered red ore. By accumulating part of the sintered ore accumulation inside the groove, the sintered ore accumulation and the sintered red ore flow form a "material abrasion" working mode, thereby avoiding direct erosion of the chute lining by the sintered red ore, thereby extending the service life of the chute lining.

[0015] Furthermore, a third segregation device is fixed on the first motherboard. The height of the third segregation device is lower than that of the second segregation device, so that the sintered red ore material flow from the second segregation device to the third segregation device is tumbled and reflected multiple times, and the sintered red ore of various particle sizes is continuously segregated and buffered.

[0016] The first motherboard, the third motherboard, and the second motherboard jointly fix the fourth segregation device, and the fourth segregation device is divided into the first motherboard fixing section of the fourth segregation device, the third motherboard fixing section of the fourth segregation device, and the second motherboard fixing section of the fourth segregation device. The height of the fourth segregation device is lower than that of the third segregation device, so that the sintered red ore flow from the third segregation device to the fourth segregation device is repeatedly tumbled and reflected, and the process segregation and buffering of the sintered red ore of various particle sizes are continued;

[0017] The longitudinal section of the third segregation device perpendicular to the direction of the first motherboard, the longitudinal section of the first motherboard fixing section of the fourth segregation device perpendicular to the direction of the first motherboard, the longitudinal section of the third motherboard fixing section of the fourth segregation device perpendicular to the direction of the third motherboard, and the longitudinal section of the second motherboard fixing section of the fourth segregation device perpendicular to the direction of the second motherboard are all grooves surrounded on three sides. The groove structure is utilized to form a buffer and segregation bed for sintered red ore. By accumulating part of the sintered ore accumulation inside the groove, the sintered ore accumulation and the sintered red ore flow form a "material abrasion" working mode, thereby avoiding direct erosion of the chute lining by the sintered red ore, thereby extending the service life of the chute lining.

[0018] Furthermore, the groove width of the first motherboard fixing section of the fourth segregation device gradually increases from the fourth motherboard to the third motherboard, and the groove width of the third motherboard fixing section of the fourth segregation device gradually decreases from the first motherboard to the second motherboard. Through the change of the groove width of the fourth segregation device, the sintered red ore flow is forced to be centered after flowing out of the fourth segregation device and is evenly distributed below.

[0019] Furthermore, a sintered ore inlet is provided at the top of the first mother plate, so that the sintered red ore material flows through the sintered ore inlet to the first segregation device, and the sintered red ores of various particle sizes are subjected to primary process segregation and buffering.

[0020] Furthermore, a sintered ore outlet is provided at the bottom of the fourth mother plate, and a ring cooler unloading trolley is provided at the sintered ore outlet, so that the sintered red ore flow that is forced to be centered after flowing out of the fourth segregation device is dropped onto the ring cooler unloading trolley below in order of particles from large to small.

[0021] Furthermore, the ring cooler unloading trolley is tilted downward from the third motherboard to the fourth motherboard, and a ring cooler trolley is arranged outside the ring cooler unloading trolley, so that the sintered red ore material flows through the inclined surface of the ring cooler unloading trolley, and the material layer of the ring cooler trolley is reasonably segregated again, so that large pieces of sintered red ore are arranged at the bottom of the material layer, which greatly improves the permeability of the material layer on the ring cooler trolley, effectively realizes the reasonable segregation of the material layer of the ring cooler trolley, and improves the efficient process ring cooling effect of the sintered red ore.

[0022] Furthermore, the side of the groove away from the chute mother plate is a material baffle; the bottom surface of the groove is a material connecting plate; the side of the groove close to the chute mother plate is a chute liner, and the chute liner is connected to the chute mother plate; the chute liner, material connecting plate and material baffle are fixed on the bottom reinforcement ribs, and the material baffle, material connecting plate and chute liner together constitute a buffer and segregation bed for sintered red ore, and by disassembling and assembling the groove supporting functional components and the easily worn working surface, the easily worn working surface can be easily disassembled and assembled, which is convenient for inspection, maintenance and replacement, and greatly extends the overall service life of each segregation device.

[0023] Furthermore, the material baffle includes at least one section of wear-resistant square steel, which is bolted to the mounting base, and the bottom bolts of the mounting base are connected to the bottom reinforcement ribs. The material baffle adopts an installation structure in which the wear-resistant square steel is covered on the mounting base. The mounting base provides reliable support for the wear-resistant square steel, and the parts of each segregation device that are more prone to wear are effectively covered by the wear-resistant square steel, which greatly extends the service life of each segregation device. In addition, each easily worn part is fixed by bolts, which is convenient for inspection, maintenance and replacement.

[0024] Furthermore, the chute mother plate is a curved folding plate, the third segregation device is arranged at the first curved turning point of the chute mother plate, and the fourth segregation device is arranged at the second curved turning point of the chute mother plate. The inclined folding surface of the curved folding plate of the chute mother plate is used to change the distance between the segregation devices. Combined with the horizontal flow rate of the sintered red ore flow after buffering and segregation by the upper segregation device, the sintered red ore flow flowing out of the upper segregation device falls on the lower segregation device, and the landing point of the sintered red ore flow is accurately controlled.

[0025] Furthermore, one end of the bottom reinforcement rib is connected to the mounting base bolt, the other end of the bottom reinforcement rib is welded to the chute mother plate, the upper working surface of the bottom reinforcement rib is fixedly connected to the material connecting plate, and the lower working surface of the bottom reinforcement rib is also fixedly connected to the inclined support. The connection between each segregation device and the chute mother plate is reinforced by welding and inclined support to form a support coupling body, which withstands the impact force generated when the sintered red ore falls, and realizes strong vertical support for the entire segregation device.

[0026] Furthermore, the grooves are fixed horizontally on the chute mother plate, and the groove structure is used to form a buffer and segregation bed for the sintered red ore, which performs multi-level buffering on the sintered red ore flow and strengthens the "material grinding" effect between the sintered ore accumulation and the sintered red ore flow to achieve better segregation effect, and greatly reduces the probability of wear-through and leakage of the chute lining and chute mother plate.

[0027] It can be seen from the above technical solutions that the present invention has the following advantages:

[0028] 1. The hot ore chute of the sintering machine provided by the present invention is provided with multiple levels of segregation devices of different specifications. Through the first segregation device, the second segregation device, the third segregation device and the fourth segregation device, the sintered red ore flow is rolled and reflected multiple times, thereby completing the process segregation, buffering and uniform distribution of sintered red ore of various particle sizes, and finally making the large pieces of sintered ore evenly distributed at the bottom of the material layer of the ring cooler trolley, and the small particles of sintered ore evenly distributed at the upper part of the material layer of the ring cooler trolley.

[0029] 2. The hot ore chute of the sintering machine provided by the present invention rolls and reflects the sintered red ore flow through the various levels of segregation devices, and then the fourth segregation device uses the change of the trough width to realize the forced centering and uniform distribution of the sintered red ore flow, so that the sintered red ore flow is forced to be centered after flowing out of the fourth segregation device, and is evenly distributed on the ring cooler unloading trolley and falls onto the ring cooler trolley, so that large pieces of sintered red ore are distributed at the bottom of the material layer, which greatly improves the permeability of the material layer of the ring cooler trolley, effectively realizes the reasonable segregation of the material layer of the ring cooler trolley, avoids uneven thickness of the material distribution of the ring cooler trolley, and improves the efficient process ring cooling effect of the sintered red ore.

[0030] 3. The hot ore chute of the sintering machine provided by the present invention accumulates part of the sintered ore deposits through the material buffer bed constructed by the grooves of each segregation device, so that the sintered ore deposits and the sintered red ore flow form a "material abrasion" working mode, avoiding the direct erosion and wear of the chute lining and material connecting plate at the drop point by the sintered red ore, thereby extending the service life of the chute lining and improving the service life and operation reliability of each device component during the maintenance cycle.

[0031] 4. The hot ore chute of the sintering machine provided by the present invention disassembles and assembles the supporting functional components of the groove and the easily worn working surface, realizing the simple disassembly and assembly function of the easily worn working surface, and the material baffle adopts the installation structure covered by wear-resistant square steel on the installation base, so that the parts of each segregation device that are more susceptible to wear are effectively covered by the wear-resistant square steel, which greatly extends the service life of each segregation device, and each easily worn part is fixed by bolts, which is convenient for inspection, maintenance and replacement.

[0032] 5. The fourth segregation device of the hot ore chute of the sintering machine provided by the present invention is used in conjunction with color steel tiles to construct a temporary partition, which solves the problem that the subsequent ring cooler receiving chute and the internal items of the plate feeder cannot be repaired due to the falling of grate bars and ore during maintenance, and realizes synchronous construction operations.

[0033] It can be seen that compared with the prior art, the present invention has outstanding substantial features and significant progress, and the beneficial effects of its implementation are also obvious. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for the description. 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 paying any creative work.

[0035] Figure 1 It is a schematic diagram of the three-dimensional structure of the hot ore chute of the present invention.

[0036] Figure 2It is a schematic diagram of the longitudinal cross-sectional structure of the hot ore chute of the present invention.

[0037] Figure 3 It is a schematic diagram of the longitudinal cross-sectional structure of the groove of the segregation device of the present invention.

[0038] Figure 4 It is a schematic diagram of the longitudinal cross-sectional structure of the material baffle of the present invention.

[0039] Figure 5 It is a schematic diagram of the longitudinal cross-sectional structure of the mounting base of the present invention.

[0040] Figure 6 It is a cross-sectional schematic diagram of the bottom reinforcement rib of the present invention.

[0041] In the figure, 1. material baffle; 2. mounting base; 3. bottom reinforcement rib; 4. oblique support; 5. material receiving plate; 6. chute mother plate; 6-3. third mother plate; 6-4. fourth mother plate; 7. chute lining; 8. sintered ore inlet; 9. material guide box; 10. sintered ore outlet; 11. first segregation device; 12. second segregation device; 13. third segregation device; 14. fourth segregation device; 15. annular cooler unloading trolley; 16. annular cooler trolley. DETAILED DESCRIPTION

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 are within the scope of protection of the present invention.

[0043] Example 1

[0044] like Figure 1 、 Figure 2 As shown, a sintering machine hot ore chute includes a chute motherboard 6, which is a curved folding panel. The chute motherboard 6 includes: a first motherboard and a second motherboard. The first motherboard and the second motherboard are arranged opposite to each other. The first motherboard and the second motherboard are connected on both sides by the third motherboard 6-3 and the fourth motherboard 6-4 respectively. The third motherboard 6-3 and the fourth motherboard 6-4 are arranged opposite to each other.

[0045] The first segregation device 11 is fixed on the first motherboard.

[0046] The third motherboard 6-3, the second motherboard, and the fourth motherboard 6-4 jointly fix the second segregation device 12, dividing the second segregation device 12 into the third motherboard fixing section of the second segregation device 12, the second motherboard fixing section of the second segregation device 12, and the fourth motherboard fixing section of the second segregation device 12. The third motherboard 6-3, the second motherboard, and the fourth motherboard 6-4 respectively fix the third motherboard fixing section of the second segregation device 12, the second motherboard fixing section of the second segregation device 12, and the fourth motherboard fixing section of the second segregation device 12. The height of the second segregation device 12 is lower than that of the first segregation device 11.

[0047] A third segregation device 13 is further fixed on the first motherboard. The height of the third segregation device 13 is lower than that of the second segregation device 12 .

[0048] The first motherboard, the third motherboard 6-3, and the second motherboard jointly fix the fourth segregation device 14, and the fourth segregation device 14 is divided into the first motherboard fixing section of the fourth segregation device 14, the third motherboard fixing section of the fourth segregation device 14, and the second motherboard fixing section of the fourth segregation device 14. The first motherboard, the third motherboard 6-3, and the second motherboard respectively fix the first motherboard fixing section of the fourth segregation device 14, the third motherboard fixing section of the fourth segregation device 14, and the second motherboard. The height of the fourth segregation device 14 is lower than that of the third segregation device 13.

[0049] The longitudinal section of the first segregation device 11 perpendicular to the direction of the first motherboard, the longitudinal section of the third motherboard fixing section of the second segregation device 12 perpendicular to the direction of the third motherboard 6-3, the longitudinal section of the second motherboard fixing section of the second segregation device 12 perpendicular to the direction of the second motherboard, the longitudinal section of the fourth motherboard fixing section of the second segregation device 12 perpendicular to the direction of the fourth motherboard 6-4, the longitudinal section of the third segregation device 13 perpendicular to the direction of the first motherboard, the longitudinal section of the first motherboard fixing section of the fourth segregation device 14 perpendicular to the direction of the first motherboard, the longitudinal section of the third motherboard fixing section of the fourth segregation device 14 perpendicular to the direction of the third motherboard 6-3, and the longitudinal section of the second motherboard fixing section of the fourth segregation device 14 perpendicular to the direction of the second motherboard are all grooves surrounded on three sides.

[0050] The groove width of the first motherboard fixing section of the fourth segregation device 14 gradually increases from the fourth motherboard 6-4 to the third motherboard 6-3, and the groove width of the third motherboard fixing section of the fourth segregation device 14 gradually decreases from the first motherboard to the second motherboard.

[0051] A sintered ore inlet 8 is provided at the top of the first mother plate, and the sintered ore inlet 8 is connected to the material guide box 9 and the first segregation device 11 .

[0052] A sintered ore outlet 10 is provided at the bottom end of the fourth motherboard 6 - 4 , and a ring cooler unloading trolley 15 is provided at the sintered ore outlet 10 .

[0053] The ring cooler unloading trolley 15 is tilted downward from the third motherboard 6 - 3 to the fourth motherboard 6 - 4 , and a ring cooler trolley 16 is provided outside the ring cooler unloading trolley 15 .

[0054] The third segregation device 13 is arranged at the first bending turning point of the chute mother plate 6 .

[0055] The fourth segregation device 14 is provided at the second bending turning point of the chute main plate 6 .

[0056] By utilizing the inclined folding surface of the bending folding plate of the chute mother plate 6, the distance between the third segregation device 13 and the fourth segregation device 14 is changed. Combined with the horizontal flow velocity of the sintered red ore flow after buffering and segregation by the third segregation device 13, the sintered red ore flow flowing out of the third segregation device 13 falls on the fixed section of the first mother plate of the fourth segregation device 14, and the landing point of the sintered red ore flow is precisely controlled.

[0057] The groove is fixed horizontally on the chute mother plate 6. The groove structure is used to form a buffer and segregation bed for the sintered red ore. Its function is based on the working principle of "material abrasion". By accumulating part of the sintered ore inside the groove, the sintered red ore is prevented from directly eroding the chute lining 7, thereby extending the service life of the chute lining 7.

[0058] The side of the groove away from the chute mother plate 6 is the material baffle 1; the bottom of the groove is the material connecting plate 5; the side of the groove close to the chute mother plate 6 is the chute lining 7; the chute lining 7 is connected to the chute mother plate 6; the chute lining 7, the material connecting plate 5, and the material baffle 1 are fixed on the bottom reinforcement rib 3.

[0059] The material baffle 1, the material connecting plate 5 and the chute lining 7 together constitute the buffer and segregation bed of the sintered red ore. The inclined folding surface of the folding plate of the chute mother plate 6 is bent and folded to change the angle between the chute lining 7 and the material connecting plate 5 to form different buffer and segregation bed structures and achieve different buffer and segregation effects.

[0060] Specifically, the material is fed to the first segregation device 11 through the material guide box 9. The sintered red ore buffer and segregation bed formed by the groove of the first segregation device 11 performs initial buffering and segregation on the sintered red ore flow, and then the material is fed to the second segregation device 12, so that the sintered red ore falls into the groove of the second segregation device 12. The sintered red ore buffer and segregation bed formed by the material baffle 1 of the groove, the material receiving plate 5, and the chute liner 7 together make the sintered red ore roll and reflect multiple times on the second segregation device 12 and then be discharged from the bottom of the groove. The accumulated sintered ore material in the part squeezes and pushes the sintered red ore flow, so that the sintered red ore flow flows out from the second segregation device 12 and falls into the groove of the third segregation device 13, and then flows out from the groove of the third segregation device 13 and falls into the groove of the fourth segregation device 14. After the fourth segregation device 14 uses the change of the groove width to force the sintered red ore flow to be centered and segregated, the sintered red ore flow flowing out of the fourth segregation device 14 is evenly distributed on the annular cooler unloading trolley 15 below.

[0061] like Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 As shown, the material baffle 1 has a "concave" cross-section, and the "concave" cross-section of the material baffle 1 is inverted on the mounting base 2. The mounting base 2 is fixed to the outer edge of the bottom reinforcement rib 3. The inner side of the outer edge of the working surface on the bottom reinforcement rib 3 is fixedly connected to the material connecting plate 5, and a chute lining 7 is provided at the connection between the material connecting plate 5 and the chute mother plate 6.

[0062] Preferably, the material baffle 1 can be made of at least one section of wear-resistant square steel, so that the material baffle 1 is composed of multiple sections of wear-resistant square steel, the wear-resistant square steel bolts are connected to the mounting base 2, and the lower bolts of the mounting base 2 are connected to the bottom reinforcement rib 3, which is convenient for disassembly, replacement and repair.

[0063] Preferably, the upper portion of the mounting base 2 is connected to the wear-resistant square steel via countersunk bolts, and the lower portion of the mounting base 2 is fixed to the bottom reinforcement rib 3 via countersunk bolts, providing reliable support for the wear-resistant square steel.

[0064] The outer edge of the lower working surface of the bottom reinforcing rib 3 is connected to the top of the inclined support 4, and the bottom of the inclined support 4 is fixedly connected to the chute motherboard 6, so that the inclined support 4 is used to achieve strong support for each segregation device in the vertical direction.

[0065] Preferably, one end of the bottom reinforcement rib 3 is connected to the mounting base 2 by a countersunk bolt, and the other end of the bottom reinforcement rib 3 is connected to the chute mother plate 6 by welding.

[0066] The terms "first," "second," "third," "fourth," and so forth (if any) in the description and claims of the present invention and in the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a particular 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 invention described herein can be implemented in orders other than those illustrated or described herein. In addition, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0067] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A hot ore chute for a sintering machine, comprising a chute motherboard, the chute motherboard comprising: A first motherboard and a second motherboard, the first motherboard and the second motherboard are arranged opposite to each other, the first motherboard and the second motherboard are connected on both sides by a third motherboard and a fourth motherboard respectively, and the third motherboard and the fourth motherboard are arranged opposite to each other; Characterized in that, a first segregation device is fixed on the first motherboard; The third motherboard, the second motherboard, and the fourth motherboard jointly fix the second segregation device, dividing the second segregation device into a second segregation device third motherboard fixing section, a second segregation device second motherboard fixing section, and a second segregation device fourth motherboard fixing section. The height of the second segregation device is lower than that of the first segregation device. A longitudinal section of the first segregation device perpendicular to the direction of the first motherboard, a longitudinal section of the third motherboard fixing section of the second segregation device perpendicular to the direction of the third motherboard, a longitudinal section of the second motherboard fixing section of the second segregation device perpendicular to the direction of the second motherboard, and a longitudinal section of the fourth motherboard fixing section of the second segregation device perpendicular to the direction of the fourth motherboard are all grooves enclosed on three sides; A third segregation device is further fixed on the first motherboard, and the height of the third segregation device is lower than that of the second segregation device; The first motherboard, the third motherboard, and the second motherboard are used to fix the fourth segregation device together, and the fourth segregation device is divided into a first motherboard fixing section of the fourth segregation device, a third motherboard fixing section of the fourth segregation device, and a second motherboard fixing section of the fourth segregation device. The height of the fourth segregation device is lower than that of the third segregation device. A longitudinal section of the third segregation device perpendicular to the first motherboard, a longitudinal section of the first motherboard fixing section of the fourth segregation device perpendicular to the first motherboard, a longitudinal section of the third motherboard fixing section of the fourth segregation device perpendicular to the third motherboard, and a longitudinal section of the second motherboard fixing section of the fourth segregation device perpendicular to the second motherboard are all grooves enclosed on three sides; The groove width of the first motherboard fixing section of the fourth segregation device gradually increases from the fourth motherboard to the third motherboard, and the groove width of the third motherboard fixing section of the fourth segregation device gradually decreases from the first motherboard to the second motherboard.

2. The hot ore chute of a sintering machine according to claim 1, characterized in that: A sintered ore inlet is provided at the top of the first mother plate.

3. The hot ore chute of a sintering machine according to claim 1, characterized in that: A sintered ore outlet is provided at the bottom end of the fourth mother plate, and a ring cooler unloading trolley is provided at the sintered ore outlet.

4. The hot ore chute of a sintering machine according to claim 3, characterized in that: The unloading trolley of the ring cooler tilts downward from the third motherboard to the fourth motherboard.

5. The hot ore chute of a sintering machine according to claim 1, characterized in that: The side of the groove away from the chute motherboard is the material baffle; the bottom of the groove is the material connecting plate; the side of the groove close to the chute motherboard is the chute lining, and the chute lining is connected to the chute motherboard; the chute lining, material connecting plate and material baffle are fixed on the bottom reinforcement rib.

6. The hot ore chute of a sintering machine according to claim 5, characterized in that: The material baffle comprises at least one section of wear-resistant square steel, the wear-resistant square steel is bolted to the mounting base, and the lower bolts of the mounting base are connected to the bottom reinforcement rib.

7. The hot ore chute of a sintering machine according to claim 1, characterized in that: The chute mother plate is a curved folding plate, the third segregation device is arranged at the first curved turning point of the chute mother plate, and the fourth segregation device is arranged at the second curved turning point of the chute mother plate.

8. The hot ore chute of a sintering machine according to claim 1, characterized in that: The groove is fixed horizontally on the chute motherboard.

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