A rotary cooler with a rocker arm trolley and a same-side operation positive unloading

Abstract

This invention provides an annular cooler with a rocker arm trolley operating on the same side and unloading in the forward direction. It includes an annular cooler frame and a rotating frame. The annular cooler trolley includes an offset trolley body, a connecting shaft, a rocker arm, and a rocker arm wheel. The center of gravity of the offset trolley body is offset to the side near its front end. The center of gravity of the rocker arm and the offset trolley body are located on the same side of the connecting shaft. An annular support rail is located below the rocker arm wheel. The annular support rail includes a circumferentially connected cooling horizontal section and an unloading variable track section. The unloading variable track section is concave. When the cooling horizontal section abuts against the rocker arm wheel, the offset trolley body is limited to a horizontal cooling state. When the unloading variable track section abuts against the rocker arm wheel, the offset trolley body is limited to an inclined unloading state. This invention, by changing the tilting structure and tilting direction of the annular cooler trolley, and in conjunction with the annular support rail, achieves forward operation and forward tilting unloading of the annular cooler trolley, solving the problem of poor unloading in the prior art.

Description

Technical Field

[0001] This invention relates to the field of annular cooling equipment technology, and in particular to an annular cooler with a rocker arm trolley operating on the same side and unloading material in the forward direction. Background Technology

[0002] In metallurgical production, the annular cooler is a crucial piece of equipment in the upstream smelting process, primarily used to cool the high-temperature sintered ore 610 after roasting in the sintering machine. In the iron and steel smelting sintering process, the high-temperature sintered ore 610, after being roasted into blocks in the sintering machine, is crushed and continuously and evenly distributed onto the rotary trolley of the annular cooler via a feed chute. Driven by a motor, the annular cooler moves in a uniform circular motion on a horizontal track. Simultaneously, a blower delivers cold air through ducts into the air box system 30 below the annular cooler trolley 80. Under positive pressure, the cold air passes through the upper grate bars of the annular cooler trolley 80 and enters the hot sintered ore 610 layer, where it undergoes thorough heat exchange with the high-temperature sintered ore 610. During this heat exchange, the cooling air is heated into high-temperature flue gas and discharged through the annular cooling hood on the upper part of the annular cooler trolley 80, thus completing the cooling process of the sintered ore 610.

[0003] Please see the appendix Figure 1-2 In the existing pellet ring cooler, driven by a drive unit, the ring cooler moves horizontally on the support rollers 40 via the annular pressure rail 50 under the rotating frame. In the feeding and blowing cooling section, the ring pressure rail 50 presses down on the rocker arm device to maintain the horizontal working state of the ring cooler trolley 80. After the ring cooler rotates once and the sinter 610 is cooled, the rocker arm wheel 840 of the ring cooler trolley 80 begins to rise along the unloading pressure rail. Under the action of the trolley's own weight and the gravity of the material, the bottom plate of the ring cooler trolley 80 slowly tilts as the connecting shaft 820 of the ring cooler trolley 80 rotates, unloading the cooled sinter 610 into the discharge chute. After unloading, the ring cooler trolley 80 begins to reset with the help of the reset roller 60, and its rocker arm wheel 840 also descends along the unloading pressure rail, forcing the ring cooler trolley 80 to rotate in the opposite direction until it is level and re-enters the loading area. In this way, the ring cooler completes the entire cooling process of the high-temperature sinter 610. In other words, the current unloading of the annular cooler mainly relies on the eccentric trolley tilting and reset wheel for unloading and leveling.

[0004] It should be noted that the annular cooler trolley 80 is a fan-shaped eccentric planar structure, with a connecting shaft 820 installed underneath. The connecting shaft 820 is mounted on both sides of the rotating frame via axle seats. A rocker arm device is installed at one end of the connecting shaft 820, and the rocker arm 830 and the center of gravity of the trolley are located on opposite sides of the connecting shaft 820 (e.g., Figure 3Like a balance scale, when the pressure rail is in a horizontal working state, the rocker arm wheel 840, under the action of the fixed horizontal annular pressure rail 50, provides a downward counterforce on the other side of the connecting shaft 820, which balances the deflection torque brought by the gravity of the annular cooling machine trolley 80, keeping the grate surface of the annular cooling machine trolley 80 in a horizontal state; when unloading in the unloading curved rail section of the unloading area, the annular cooling machine trolley 80, under the action of gravity eccentricity, flips backward around the connecting shaft 820, and the rocker arm 830 flips along an upwardly curved rail to unload (e.g. Figure 2 After unloading, the ring cooler trolley 80 is slowly leveled with the assistance of a reset roller 60, thus completing the unloading and leveling process.

[0005] It is worth noting that in the existing technology, the annular cooler trolley 80 overturns to unload under the weight of the material, and its rotation direction is opposite to the direction of rotation of the annular cooler. At this time, the sinter 610 on the leading annular cooler trolley 80 will be subject to the reverse resistance of the sinter 610 on the next annular cooler trolley 80 (e.g., Figure 4 This prevents the annular cooling machine trolley 80 from tipping over for unloading, causing the trolley 80 to tip over and unload unsmoothly by its own weight. It requires frequent assistance from the auxiliary unloading device 620 via a booster rocker arm to help the trolley 80 tip over (e.g., ...). Figure 5 Furthermore, if the material on the annular cooler trolley 80 caks, the force provided by the auxiliary unloading device 620 will not be enough to make the annular cooler trolley 80 rotate, which will cause the inability to unload the material, triggering a shutdown alarm, resulting in a production accident and seriously affecting the safe operation of the equipment.

[0006] In view of this, it is necessary to propose an annular cooler with a rocker arm trolley operating on the same side and unloading in the forward direction to solve or at least alleviate the above-mentioned defects. Summary of the Invention

[0007] The main objective of this invention is to provide a ring cooler with a rocker arm trolley operating on the same side and unloading in the forward direction, in order to solve the problem in the prior art where the ring cooler trolley flips over to unload under the action of the material's own weight, and the direction of its flipping rotation is opposite to the direction of rotation of the ring cooler, resulting in the ring cooler trolley relying on its own weight for unloading not being smooth.

[0008] To achieve the above objectives, the present invention provides an annular cooler with a rocker arm trolley operating on the same side and unloading in the forward direction, comprising an annular cooler frame, a rotating frame, and a drive device; the drive device is fixed to the annular cooler frame, and the rotating frame is mounted on the annular cooler frame; it also includes an annular support rail and multiple annular cooler trolleys connected in sequence, the annular support rail being fixed to the annular cooler frame and arranged around the inner side of the rotating frame; wherein,

[0009] The annular cooler trolley includes an offset trolley body, a connecting shaft, a rocker arm, and a rocker arm wheel disposed at the free end of the rocker arm; wherein, the connecting shaft divides the offset trolley body into a front end and a rear end along the running direction of the annular cooler, and the center of gravity of the offset trolley body is offset to the side closer to the front end; the connecting shaft is fixed to the bottom of the offset trolley body along the width direction of the offset trolley body, and the connecting shaft is rotatably connected to the rotating frame, and the offset trolley body is flipped relative to the rotating frame via the connecting shaft; the rocker arm is fixedly connected to the connecting end of the connecting shaft; the center of gravity of the rocker arm and the center of gravity of the offset trolley body are located on the same side of the connecting shaft;

[0010] The annular support rail is positioned vertically below the rocker arm wheel, and abuts against the rocker arm wheel to limit the rotation angle of the rocker arm; wherein,

[0011] The annular support rail includes a cooling horizontal section and an unloading guide rail section connected circumferentially. The unloading guide rail section is concave and is set lower than the cooling horizontal section in the horizontal direction. When the cooling horizontal section abuts against the rocker arm wheel, the offset trolley body is limited to a horizontal cooling state; when the unloading guide rail section abuts against the rocker arm wheel, the offset trolley body is limited to an inclined unloading state.

[0012] Preferably, the unloading track-changing section includes a tilting section and a reset section. The tilting section is connected to the cooling horizontal section and extends downward at an incline from the cooling horizontal section toward the reset section. The reset section is connected between the tilting section and the cooling horizontal section. When the tilting section abuts against the rocker arm wheel, the offset trolley body is limited to a unloading state. When the reset section abuts against the rocker arm wheel, the offset trolley body is limited to a reset state.

[0013] Preferably, the unloading track-changing section further includes an attitude-maintaining section connected between the unloading section and the reset section, the attitude-maintaining section being arranged in a horizontal direction.

[0014] Preferably, the device further includes a discharge booster located above the unloading section. The discharge booster includes a mounting base, a spring, and a trigger plate. The mounting base is located above the unloading section and is fixed to the ring cooler frame. The mounting base includes a hinged end and a fixed end that are disposed opposite to each other. The spring is obliquely located below the mounting base. The top end of the spring is fixedly connected to the fixed end, and the bottom end of the spring is fixedly connected to the trigger plate. The trigger plate is located below the mounting base, with one end hinged to the hinged end and the other end extending obliquely downward and fixedly connected to the bottom end of the spring. There is a preset interval distance between the trigger plate and the unloading section.

[0015] Preferably, the mounting base is located near the transition connection between the cooling horizontal section and the unloading section.

[0016] Preferably, the unloading section and the resetting section are straight inclined track sections, or smooth curve sections, or smooth curve sections composed of multiple line segments.

[0017] Preferably, the unloading section, the attitude holding section, and the reset section together form a continuous fitted curve track segment, and the opening of the fitted curve track segment is set upward.

[0018] Preferably, the annular support rail comprises one or more of rail steel, H-beams, and T-beams.

[0019] Preferably, the top surface of the annular support rail that contacts the rocker arm wheel is made of a wear-resistant material.

[0020] Preferably, the angle between the reset section and the cooling horizontal section is smaller than the angle between the unloading section and the cooling horizontal section.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] This invention provides an annular cooler with a rocker arm trolley operating on the same side and unloading in the forward direction. It includes an annular cooler frame, a rotating frame, and a drive unit. By offsetting the center of gravity of the offset trolley body to the side closer to its front end, the center of gravity of the rocker arm and the offset trolley body are located on the same side of the connecting shaft. Simultaneously, the annular support rail is vertically positioned lower than the rocker arm wheel. The annular support rail includes a circumferentially connected cooling horizontal section and an unloading guide rail section. The unloading guide rail section is concave. When the cooling horizontal section abuts against the rocker arm wheel, the offset trolley body is limited to a horizontal cooling state. When the unloading guide rail section abuts against the rocker arm wheel, the offset trolley body is limited to an inclined unloading state. This invention, by changing the tilting principle and tilting structure of the annular cooler trolley, and in conjunction with the annular support rail, achieves forward operation and forward tilting unloading of the annular cooler trolley, solving the problem of poor unloading in the prior art. Furthermore, by using the reset section of the ring rail for reset, the original reset structure that required a reset roller is eliminated, resulting in a simpler, more stable, and reliable structure. By setting up a material unloading booster device, the smoothness of material unloading can be further improved. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of an annular cooler in the prior art;

[0025] Figure 2 This is a schematic diagram of the operation and unloading of the annular cooling machine trolley in the existing technology;

[0026] Figure 3 This is a schematic diagram of the structure of a ring-cooled machine trolley in the existing technology;

[0027] Figure 4 This is a schematic diagram of the structure in the prior art where the trolley of the annular cooler is obstructed from tipping over and unloading.

[0028] Figure 5 This is a schematic diagram of a prior art structure that uses an unloading auxiliary device to assist in unloading.

[0029] Figure 6 This is a schematic diagram of the structure of an annular cooler in one embodiment of the present invention;

[0030] Figure 7 This is a schematic diagram of the structure of the annular cooling machine trolley in one embodiment of the present invention;

[0031] Figure 8 This is a schematic diagram illustrating the principle of the same-side unloading of the rocker arm trolley in one embodiment of the present invention;

[0032] Figure 9 This is a schematic diagram of the unloading booster device in one embodiment of the present invention;

[0033] Figure 10 This is a schematic diagram of the structure of the annular cooler trolley tilting forward to unload material in one embodiment of the present invention.

[0034] The objectives, features, and advantages of this invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0035] Explanation of icon numbers:

[0036] 10. Ring cooler frame; 20. Drive unit; 30. Air box system; 40. Support roller; 50. Circular pressure rail; 60. Reset roller; 610. Sintered ore; 620. Auxiliary unloading device; 70. Circular support rail; 710. Cooling horizontal section; 720. Unloading track changing section; 721. Tilting section; 722. Reset section; 723. Attitude holding section; 80. Ring cooler trolley; 81. Rear ring cooler trolley; 810. Offset trolley body; 811. Front end; 812. Rear end; 820. Connecting shaft; 830. Rocker arm; 840. Rocker arm wheel; 90. Unloading booster device; 910. Mounting base; 911. Hinge end; 912. Fixed end; 920. Spring; 930. Trigger plate. Detailed Implementation

[0037] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0039] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0040] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions 1 is contradictory or cannot be implemented, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0041] Please see the appendix Figure 1-10 An embodiment of the present invention provides a ring cooler with a rocker arm trolley operating on the same side and unloading in the forward direction, comprising a ring cooler frame 10, a rotating frame (not shown in the figure), and a drive device 20; the drive device 20 is fixed to the ring cooler frame 10, and the rotating frame is mounted on the ring cooler frame 10; it also includes an annular support rail 70 and multiple ring cooler trolleys 80 connected in sequence, the annular support rail 70 being fixed to the ring cooler frame 10 and arranged around the inner side of the rotating frame. It should be noted that, in conjunction with the above background technology, the rotation method of the ring cooler trolley 80 in the prior art is generally backward rotation, that is, the rotation direction of the ring cooler trolley 80 in the prior art is opposite to the rotation direction of the ring cooler, and the rocker arm wheel 840 of the ring cooler trolley 80 is pressed against by the annular pressure rail 50.

[0042] It is also worth noting that in the existing technology, the annular cooler trolley 80 is offset, with its center of gravity falling on one side of the rear end 812 of the offset trolley body 810. In this tilting method, the annular cooler trolley 80 tilts and unloads under the weight of the sinter 610, with the tilting direction opposite to the rotation direction of the annular cooler. At this time, the sinter 610 on the front trolley will experience reverse resistance from the sinter 610 on the rear annular cooler trolley 81 (e.g., ...). Figure 4 This prevents the annular cooling machine trolley 80 from turning over and unloading, causing the trolley 80 to have difficulty turning over and unloading by its own weight. It requires frequent assistance from the auxiliary unloading device 620 via the pusher rocker arm wheel 840 to help the trolley turn over normally (e.g., Figure 5 Furthermore, if the sintered ore 610 on the annular cooler trolley 80 caking occurs, the force provided by the auxiliary unloading device 620 will not be able to allow the annular cooler trolley 80 to rotate smoothly, which will cause the inability to unload and trigger a shutdown alarm, resulting in a production accident and seriously affecting the safe operation of the equipment.

[0043] Based on this, this application provides an annular cooler with a rocker arm trolley operating on the same side and unloading in the forward direction, wherein,

[0044] The annular cooler trolley 80 includes an offset trolley body 810, a connecting shaft 820, a rocker arm 830, and a rocker arm wheel 840 disposed at the free end of the rocker arm 830. The connecting shaft 820 divides the offset trolley body 810 into a front end 811 and a rear end 812 along the running direction of the annular cooler. The center of gravity of the offset trolley body 810 is offset towards the side closer to the front end 811. The connecting shaft 820 is fixed to the bottom of the offset trolley body 810 along its width direction and is rotatably connected to the rotating frame. The offset trolley body 810 is flip-mounted relative to the rotating frame via the connecting shaft 820. The rocker arm 830 is fixedly connected to the connecting end of the connecting shaft 820. The center of gravity of the rocker arm 830 and the center of gravity of the offset trolley body 810 are located on the same side of the connecting shaft 820.

[0045] It should be noted by those skilled in the art that, unlike the annular cooling machine trolley 80 in the prior art, the weight of the front end 811 of the annular cooling machine trolley 80 in this application is greater than the weight of the rear end 812, so that the center of gravity of the annular cooling machine trolley 80 falls on one side of the front end 811. Furthermore, it is worth noting that the center of gravity of the rocker arm 830 of the annular cooling machine trolley 80 and the center of gravity of the annular cooling machine trolley 80 are set on the same side, both falling on the side of the front end 811 of the offset trolley body 810, achieving "same-side setting" of the center of gravity. Specifically, the front end 811 and the rear end 812 described in this application are separated by the connecting shaft 820 of the annular cooling machine trolley 80; the end running in front is the front end 811, and the end running behind is the rear end 812. The connecting end of the connecting shaft 820 extends a certain distance from the offset trolley body and is used for connection of the rocker arm 830. The free end of the rocker arm 830 is the end of the rocker arm 830, and the connecting end of the connecting shaft 820 is the end close to the rocker arm 830. This is well known to those skilled in the art and will not be described in detail here.

[0046] The annular support rail 70 is vertically positioned below the offset trolley body 810. The annular support rail 70 abuts against the rocker arm wheel 840 to limit the rotation angle of the rocker arm 830. It should be noted that the annular support rail 70 in this application is a support rail, meaning it can support the rocker arm wheel 840 of the annular cooling machine trolley 80, rather than using a pressing rail to press against the rocker arm wheel 840 as in the prior art.

[0047] The annular support rail 70 includes a circumferentially connected cooling horizontal section 710 and a material unloading guide section 720. The material unloading guide section 720 is concave and is positioned horizontally lower than the cooling horizontal section 710. When the cooling horizontal section 710 abuts against the rocker arm wheel 840, the offset trolley body 810 is limited to a horizontal cooling state; when the material unloading guide section 720 abuts against the rocker arm wheel 840, the offset trolley body 810 is limited to an inclined unloading state. It should be noted that when the annular cooling trolley 80 is in the cooling horizontal section 710, it is in a normal cooling operation state; when the annular cooling trolley 80 moves to the material unloading guide section 720 for unloading, it enters the unloading state.

[0048] Here, the unloading and resetting process of the annular cooling machine trolley 80 needs to be specifically described: When the annular cooling machine trolley 80 runs to the cooling horizontal section 710, the upward torque of the annular support rail 70 on the rocker arm wheel 840 is in balance with the torque formed by the gravity of the annular cooling machine trolley 80, forming a balance with the rotation axis as the boundary. At this time, the annular cooling machine trolley 80 is limited to a horizontal state and does not unload. As the annular cooling machine trolley 80 continues to move forward to the unloading track changing section 720, since the supporting force of the annular support rail 70 on the rocker arm wheel 840 is not in the vertical direction, the supporting force can be decomposed into an upward component and a horizontal forward component. The torque generated by the upward component gradually becomes less than the torque formed by the gravity of the annular cooling machine trolley 80, and the annular cooling machine trolley 80 begins to enter the unloading state.

[0049] Thus, the operating principle of the annular cooling machine trolley 80 is as follows: Unlike the traditional annular cooling machine trolley 80 arrangement, in the horizontal section, along the direction of movement of the annular cooling machine, the rocker arm wheel 840, under the action of a fixed horizontal annular support rail 70, provides an upward and opposite force on the same side, maintaining balance with the deflection torque generated by the gravity of the annular cooling machine trolley 80, keeping the trolley grate surface in a horizontal state; in the unloading and track changing section 720, the annular cooling machine trolley 80, under the action of gravity eccentricity, rotates forward around the connecting shaft 820, and the rocker arm wheel 840 slowly rotates along a downwardly curved rail (as shown in the image). Figure 7 After unloading, the material is slowly leveled along the upward section of the curved track, which is the reset section 722 described later, thus completing the unloading and leveling process (e.g. Figure 7 By changing the tilting structure and tilting direction of the annular cooling machine trolley 80, and in conjunction with the unique annular support rail 70, the forward operation and forward tilting unloading of the annular cooling machine trolley 80 are achieved, solving the problem of poor unloading in the existing technology. At the same time, the reset section 722 eliminates the need for the original reset structure requiring the reset roller 60, making the structure simpler, more stable and reliable.

[0050] In a preferred embodiment, the unloading track-changing section 720 includes a tilting section 721 and a reset section 722. The tilting section 721 is connected to the cooling horizontal section 710. The tilting section 721 extends downward at an incline from the cooling horizontal section 710 toward the reset section 722. The reset section 722 connects the tilting section 721 and the cooling horizontal section 710. When the tilting section 721 abuts against the rocker arm wheel 840, the offset trolley body 810 is limited to a unloading state. When the reset section 722 abuts against the rocker arm wheel 840, the offset trolley body 810 is limited to a reset state.

[0051] It is worth noting for those skilled in the art that when the annular cooling machine trolley 80 runs to the unloading section 721, since the unloading section 721 extends obliquely downward, the supporting force of the annular support rail 70 on the rocker arm wheel 840 is not perpendicular to the unloading section 721, and can be divided into a vertically upward component and a horizontally forward component. From this point on, the torque brought by this upward component will gradually be less than the torque brought by the gravity of the annular cooling machine trolley 80. Based on this, the annular cooling machine trolley 80 begins to rotate forward around the connecting shaft 820 to enter the unloading state. When the annular cooling trolley 80 runs to the reset section 722, since the reset section 722 extends obliquely upward from the unloading section 721 and connects with the cooling horizontal section 710, the rocker arm wheel 840 gradually comes into contact with the reset section 722. At this time, the component of the supporting force of the reset section 722 on the rocker arm wheel 840 gradually begins to increase, that is, the offset trolley body 810 of the annular cooling trolley 80 gradually returns to the horizontal state. In other words, the offset trolley body 810 is limited to the reset state.

[0052] In a preferred embodiment, the unloading and reversing section 720 further includes an attitude holding section 723 connecting the tilting section 721 and the reset section 722, the attitude holding section 723 being arranged horizontally. It is noteworthy that the attitude holding section 723 is positioned a certain distance below the cooling horizontal section 710. When the annular cooling trolley 80 runs to the attitude holding section 723, due to the gravity of the offset trolley body 810, the upward component of the supporting force of the attitude holding section 723 on the rocker arm wheel 840 produces a torque equal to the torque produced by the gravity of the offset trolley body 810, and this torque value will stabilize within a certain range, allowing the offset trolley body 810 to maintain a relatively fixed attitude. This arrangement ensures that the annular cooling trolley 80 can unload sufficiently. It is understood that the length of the attitude holding section 723 and its distance relative to the cooling horizontal section 710 should be set according to actual needs, and will not be elaborated upon here.

[0053] In a preferred embodiment, a discharge booster device 90 is further provided above the dumping section 721. The discharge booster device 90 includes a mounting base 910, a spring 920, and a trigger plate 930. The mounting base 910 is located above the dumping section 721 and is fixed to the annular cooler frame 10. The mounting base 910 includes a hinged end 911 and a fixed end 912 disposed opposite to each other. The spring 920 is obliquely disposed below the mounting base 910. The top end of the spring 920 is fixedly connected to the fixed end 912, and the bottom end of the spring 920 is fixedly connected to the trigger plate 930. The trigger plate 930 is located below the mounting base 910, with one end hinged to the hinged end 911 and the other end extending obliquely downward and fixedly connected to the bottom end of the spring 920. There is a preset interval distance between the trigger plate 930 and the dumping section 721.

[0054] It should be noted that the unloading booster device 90 is installed above the annular cooler trolley 80 for tipping and unloading. When the sintered ore 610 of the annular cooler trolley 80 cakes and does not tip, the annular cooler trolley 80 continues to move forward, and the rocker arm wheel 840 will hit the unloading booster device 90. The unloading booster device 90 will then issue an alarm signal, and the signal will interlock the annular cooler to stop or trigger an alarm. The specific alarm device and signal connection method can be set by those skilled in the art according to actual needs. For example, it can be manually observed by staff, or a limit switch (not shown in the figure) can be set on the trigger plate. When the spring 920 is compressed to a certain extent, the fixed end 912 touches the limit switch to trigger an alarm, which can further improve the safety performance of the annular cooler trolley 80 during operation and unloading.

[0055] In addition, by introducing spring 920, a certain degree of compression can be ensured to avoid rigid contact. That is to say, since spring 920 will provide a certain elastic force after being compressed, this part of the spring force will act on rocker arm wheel 840, which will help rocker arm wheel move in the direction of the unloading section 721, thereby helping the annular cooler trolley 80 to unload in the forward direction, further improving the smoothness of unloading.

[0056] Furthermore, the mounting base 910 is positioned near the transition connection between the cooling horizontal section 710 and the unloading section 721. Positioning the mounting base 910 near this transition connection—that is, at the location where the annular cooling trolley 80 is about to begin unloading—allows for early detection of whether the annular cooling trolley 80 is failing to overturn due to caking, enabling timely intervention. It is understood that in other embodiments, those skilled in the art can install the mounting base 910 in other locations as needed, as long as a location where the failure to overturn due to caking can be detected promptly can be used as the mounting position for the mounting base 910; further details are omitted here.

[0057] As an optional implementation, the unloading section 721, the attitude holding section 723, and the reset section 722 are all straight inclined track sections, smooth curve sections, or smooth curve sections composed of multiple line segments. Straight inclined tracks are easy to manufacture and readily available in engineering applications. It should be noted that, to ensure the rocker arm wheel 840 can smoothly pass through the unloading section 721, attitude holding section 723, and reset section 722, in a preferred embodiment, the unloading section 721 and the attitude holding section 723 have a smooth transition, and the attitude holding section 723 and the reset section 722 have a smooth transition.

[0058] As an optional implementation, the unloading section 721, the attitude holding section 723, and the reset section 722 together form a continuous fitted curve track segment, and the opening of the fitted curve track segment is oriented upwards. It should be noted that by setting the unloading section 721, the attitude holding section 723, and the reset section 722 as a continuous fitted curve track segment in this embodiment, the rocker arm wheel 840 can be smoothly transitioned, while simultaneously completing the unloading and reset processes.

[0059] Furthermore, the annular support rail 70 includes one or more of rail steel, H-beams, and T-beams. It is understood that the form of the annular support rail 70 includes, but is not limited to, one or more of rail steel, H-beams, and T-beams. Preferably, in this embodiment, an H-beam is used, as the cross-sectional shape of the H-beam is economical and reasonable, and its mechanical properties are good.

[0060] Furthermore, the top surface of the annular support rail 70 that contacts the rocker arm wheel 840 is made of a wear-resistant material. By using a wear-resistant material, such as wear-resistant steel, wear on the curved rail can be reduced, extending the service life of the annular support rail 70.

[0061] Furthermore, the angle between the reset section 722 and the cooling horizontal section 710 is smaller than the angle between the unloading section 721 and the cooling horizontal section 710. It should be noted that, for ease of measurement, an acute angle is used here. This design ensures smoother unloading. The annular cooling trolley 80 needs to be quickly tilted and opened; therefore, the curved track structure of the unloading section is made relatively steep to facilitate the rapid opening of the annular cooling trolley 80. In the reset section 722, considering the resistance during reset, the horizontal reaction force of the reset section 722 on the rocker arm wheel 840 should be minimized. Therefore, the structure is made as gentle as possible, generally keeping the angle between the reset section 722 and the cooling horizontal section 710 to no more than 30 degrees.

[0062] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A ring cooler with a rocker arm trolley operating on the same side and unloading in the forward direction, comprising a ring cooler frame, a rotating frame, and a drive device; the drive device is fixed to the ring cooler frame, and the rotating frame is mounted on the ring cooler frame; characterized in that, It also includes a ring-shaped support rail and multiple ring-cooling machine trolleys connected in sequence. The ring-shaped support rail is fixed to the ring-cooling machine frame and is arranged around the inner side of the rotating frame; wherein, The annular cooler trolley includes an offset trolley body, a connecting shaft, a rocker arm, and a rocker arm wheel disposed at the free end of the rocker arm; wherein, the connecting shaft divides the offset trolley body into a front end and a rear end along the running direction of the annular cooler, and the center of gravity of the offset trolley body is offset to the side closer to the front end; the connecting shaft is fixed to the bottom of the offset trolley body along the width direction of the offset trolley body, and the connecting shaft is rotatably connected to the rotating frame, and the offset trolley body is flipped relative to the rotating frame via the connecting shaft; the rocker arm is fixedly connected to the connecting end of the connecting shaft; the center of gravity of the rocker arm and the center of gravity of the offset trolley body are located on the same side of the connecting shaft; The annular support rail is positioned vertically below the rocker arm wheel, and abuts against the rocker arm wheel to limit the rotation angle of the rocker arm; wherein, The annular support rail includes a cooling horizontal section and an unloading guide rail section connected circumferentially. The unloading guide rail section is concave and is set lower than the cooling horizontal section in the horizontal direction. When the cooling horizontal section abuts against the rocker arm wheel, the offset trolley body is limited to a horizontal cooling state; when the unloading guide rail section abuts against the rocker arm wheel, the offset trolley body is limited to an inclined unloading state.

2. The annular cooler with a rocker arm trolley operating on the same side and unloading in the forward direction as described in claim 1, characterized in that, The unloading and track-changing section includes a tilting section and a reset section. The tilting section is connected to the cooling horizontal section and extends downward at an incline from the cooling horizontal section toward the reset section. The reset section is connected between the tilting section and the cooling horizontal section. When the tilting section abuts against the rocker arm wheel, the offset trolley body is limited to a unloading state. When the reset section abuts against the rocker arm wheel, the offset trolley body is limited to a reset state.

3. The annular cooler with a rocker arm trolley operating on the same side and unloading in the forward direction according to claim 2, characterized in that, The unloading and track-changing section also includes an attitude-maintaining section connected between the unloading section and the reset section, and the attitude-maintaining section is arranged in a horizontal direction.

4. The annular cooler with a rocker arm trolley operating on the same side and unloading in the forward direction according to claim 2, characterized in that, It also includes a discharge booster device disposed above the unloading section. The discharge booster device includes a mounting base, a spring, and a trigger plate. The mounting base is disposed above the unloading section and fixed to the ring cooler frame. The mounting base includes a hinged end and a fixed end disposed opposite to each other. The spring is obliquely disposed below the mounting base. The top end of the spring is fixedly connected to the fixed end, and the bottom end of the spring is fixedly connected to the trigger plate. The trigger plate is disposed below the mounting base, and one end of the trigger plate is hinged to the hinged end, while the other end extends obliquely downward and is fixedly connected to the bottom end of the spring. There is a preset interval distance between the trigger plate and the unloading section.

5. The annular cooler with a rocker arm trolley operating on the same side and unloading in the forward direction according to claim 4, characterized in that, The mounting base is located near the transition connection between the cooling horizontal section and the unloading section.

6. The annular cooler with a rocker arm trolley operating on the same side and unloading in the forward direction according to claim 3, characterized in that, The unloading section and the resetting section are straight inclined track sections, smooth curve sections, or smooth curve sections composed of multiple line segments.

7. The annular cooler with a rocker arm trolley operating on the same side and unloading in the forward direction according to claim 3, characterized in that, The unloading section, the attitude holding section, and the reset section together form a continuous fitted curve track segment, and the opening of the fitted curve track segment is set upward.

8. The annular cooler with a rocker arm trolley operating on the same side and unloading in the forward direction according to claim 1, characterized in that, The ring-shaped support rail includes one or more of the following: rail steel, H-beam, and T-beam.

9. The annular cooler with a rocker arm trolley operating on the same side and unloading in the forward direction according to claim 1, characterized in that, The top surface of the annular support rail that contacts the rocker arm wheel is made of a wear-resistant material.

10. The annular cooler with a rocker arm trolley operating on the same side and unloading in the forward direction according to claim 3, characterized in that, The angle between the reset section and the cooling horizontal section is smaller than the angle between the unloading section and the cooling horizontal section.

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