A forward discharging ring cooling machine with discharging detection function

Abstract

The application provides a forward unloading ring cooling machine with unloading detection function, which comprises a ring cooling machine framework and a rotary frame, further comprises a ring-shaped supporting rail, a plurality of ring cooling machine trolleys and an unloading detection device, wherein the ring cooling machine trolley comprises a bias trolley body, a rocker arm and a rocker arm wheel arranged at the free end of the rocker arm, the gravity center of the bias trolley body and the rocker arm is located at the front end, the ring-shaped supporting rail is arranged lower than the rocker arm wheel in the horizontal direction, the ring-shaped supporting rail is in abutment with the rocker arm wheel, the unloading detection device is arranged above the ring-shaped supporting rail, and the unloading detection device comprises a trigger arm, a travel switch, a compression spring and a mounting base; wherein the compression spring is connected between the connecting end and the mounting base, so that the distance between the trigger arm and the mounting base is adjustable. Through changing the overturning structure and overturning direction of the ring cooling machine trolley, cooperating with the ring-shaped supporting rail and the unloading detection device, the forward operation and forward overturning unloading of the ring cooling machine trolley are realized, and the problem of unsmooth unloading in the prior art is solved.

Description

Technical Field

[0001] This invention relates to the field of annular cooling equipment technology, and in particular to a forward unloading annular cooler with unloading detection function. 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, the existing annular cooler lacks a discharge detection mechanism, which can easily cause production accidents and seriously affect the safe operation of the equipment if the annular cooler trolley 80 fails to discharge properly.

[0006] Therefore, it is necessary to propose a forward discharge ring cooler with discharge detection function 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 forward unloading ring cooler with unloading detection function, so as to solve the problems of unsmooth unloading due to the ring cooler trolley relying on its own weight to rotate and the lack of unloading detection in the prior art.

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

[0009] The annular cooling trolley includes an offset trolley body, a rocker arm, and a rocker arm wheel disposed at the free end of the rocker arm; the offset trolley body is rotatably disposed relative to the rotating frame, and the offset trolley body includes a front end and a rear end disposed opposite to each other, with the center of gravity of the offset trolley body located at the front end; the rocker arm is fixedly connected to the offset trolley body, and the center of gravity of the rocker arm is disposed close to the front end;

[0010] The annular support rail is positioned horizontally 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 a material unloading guide section connected circumferentially, the material unloading guide section being concave and positioned horizontally below the cooling horizontal section;

[0011] The unloading detection device is located above the annular support rail. The unloading detection device includes a trigger arm, a limit switch, a compression spring, and a mounting base. The top of the trigger arm is hinged to the annular cooler frame. The trigger arm includes a trigger end and a connecting end arranged opposite each other. The trigger end is located above the unloading track-changing section, and the connecting end extends obliquely upwards from the trigger end to above the cooling horizontal section. The mounting base is located below the connecting end and is fixedly connected to the annular cooler frame. The compression spring connects the connecting end and the mounting base to make the distance between the trigger arm and the mounting base adjustable.

[0012] The limit switch is located on the side of the mounting base away from the compression spring. The limit switch is located below the trigger arm and the trigger end of the limit switch faces the trigger arm. The limit switch is fixedly connected to the mounting base.

[0013] Preferably, the mounting base includes a mounting base plate, a spring seat, and a supporting upright plate; wherein,

[0014] The mounting base plate is arranged parallel to the cooling horizontal section, and the mounting base plate is fixedly connected to the annular cooler frame; the spring seat is fixed to the top of the mounting base plate, and the spring seat has a mounting slope for mounting the compression spring on the side facing the connecting end, and the compression spring is connected between the mounting slope and the connecting end; the support plate is disposed between the spring seat and the connecting end, the support plate is fixed to the top of the mounting base plate and extends upward by a preset length; the limit switch is fixed to the top of the support plate.

[0015] Preferably, the top of the support plate has a plurality of mounting holes extending along the extension direction of the cooling horizontal section, and the limit switch is connected to the support plate by screws passing through the mounting holes.

[0016] Preferably, the trigger arm includes a trigger arm body and a trigger plate; the top of the trigger arm body is hinged to the ring cooler frame, and the trigger arm body includes the trigger end and the connecting end disposed opposite to each other;

[0017] The trigger plate is fixed to the bottom of the trigger arm body, and the trigger plate is arranged correspondingly to the limit switch; wherein, when the rocker arm wheel abuts against the trigger end, the trigger plate moves toward the limit switch.

[0018] Preferably, the ring cooler frame includes a trigger arm base, which is located above the trigger arm. The trigger arm also includes a triangular connecting plate, which is fixed to the top of the trigger arm body. The connecting plate is hinged to the trigger arm base so that the trigger arm body is rotatably arranged around the hinge point.

[0019] Preferably, the offset trolley body includes a trolley body and a connecting shaft; the connecting shaft divides the 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 trolley body is located at the front end; the connecting shaft is fixed to the bottom of the trolley body along the width direction of the trolley body, and the connecting shaft is rotatably connected to the rotating frame, and the trolley body is flip-mounted 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.

[0020] Preferably, the unloading detection device further includes a first guide post and a second guide post; wherein,

[0021] The first guide post is fixed to the mounting inclined surface and extends toward the connecting end of the trigger arm by a first preset length; the second guide post is fixed to the connecting end and extends toward the first guide post by a second preset distance, the first guide post and the second guide post are arranged correspondingly, and there is a gap between the first guide post and the second guide post; the compression spring is sleeved on the outer surface of the first guide post and the second guide post.

[0022] Preferably, the connecting plate is fixed to the trigger arm body on the side near the trigger end.

[0023] 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.

[0024] 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.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] This invention provides a forward-discharging annular cooler with unloading detection function, including an annular cooler frame, a rotating frame, and a drive device. By positioning the center of gravity of the offset trolley body near its front end, and the center of gravity of the rocker arm on the same side as the offset trolley body, and with the annular support rail positioned horizontally 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 flipping principle and flipping structure of the annular cooler trolley, and in conjunction with the annular support rail, achieves forward operation and forward flipping unloading of the annular cooler trolley, solving the problem of poor unloading in existing technologies.

[0027] In addition, by setting up a material unloading detection device, on the one hand, it can help the ring cooler trolley to unload in the forward direction, further improving the smoothness of unloading. On the other hand, if the material on the ring cooler trolley clumps, the rocker arm wheel abuts against the trigger end of the trigger arm, which triggers the limit switch. The limit switch signal is interlocked with the signal of the drive device, thereby triggering an alarm and stopping the machine, ensuring the safety of the equipment. Attached Figure Description

[0028] 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.

[0029] Figure 1 This is a schematic diagram of the structure of an annular cooler in the prior art;

[0030] Figure 2 This is a schematic diagram of the operation and unloading of the annular cooling machine trolley in the existing technology;

[0031] Figure 3 This is a schematic diagram of the structure of a ring-cooled machine trolley in the existing technology;

[0032] 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.

[0033] Figure 5 This is a schematic diagram of a prior art structure that uses an unloading auxiliary device to assist in unloading.

[0034] Figure 6 This is a schematic diagram of the structure of an annular cooler in one embodiment of the present invention;

[0035] Figure 7 This is a schematic diagram of the structure of the annular cooling machine trolley in one embodiment of the present invention;

[0036] Figure 8 This is a schematic diagram of the structure of the annular support rail and the annular cooler trolley in one embodiment of the present invention;

[0037] Figure 9 This is an application scenario diagram of the unloading detection device in one embodiment of the present invention;

[0038] Figure 10 This is a schematic diagram of the unloading detection device in one embodiment of the present invention;

[0039] Figure 11 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.

[0040] The objectives, features, and advantages of this invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0041] Explanation of icon numbers:

[0042] 10. Circular 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. Circular cooler trolley; 81. Rear circular cooler trolley; 810. Offset trolley body; 811. Front end; 812. Rear end; 820 830. Connecting shaft; 840. Rocker arm; 90. Rocker arm wheel; 910. Unloading detection device; 911. Trigger arm; 9112. Trigger end; 9113. Connecting end; 914. Trigger plate; 915. Connecting plate; 920. Limit switch; 930. Compression spring; 941. Mounting base; 942. Mounting base plate; 943. Spring seat; 944. Mounting ramp; 950. Support plate; 960. First guide post; 970. Second guide post; 980. Trigger arm base. Detailed Implementation

[0043] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] Please see the appendix Figure 1-11 An embodiment of the present invention provides a forward unloading annular cooler with unloading detection function, comprising an annular cooler frame 10, a rotating frame (not shown in the figure), and a drive device 20; the drive device 20 is fixed on the annular cooler frame 10, and the rotating frame is mounted on the annular cooler frame 10; it also includes an annular support rail 70 and multiple annular cooler trolleys 80 connected in sequence, as well as an unloading detection device 90, the annular support rail 70 being fixed on the annular cooler frame 10, and the annular support rail 70 being arranged around the inner side of the rotating frame. It should be noted that, as described in the background section above, the existing annular cooler trolley 80 typically tilts backward. This means the tilting direction of the existing annular cooler trolley 80 is opposite to the rotation direction of the annular cooler, and the rocker arm wheel 840 of the annular cooler trolley 80 is pressed against the annular pressure rail 50. It is also worth noting that the existing 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, i.e., the side that runs rearward. 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 4This 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 ).

[0048] Based on this, this application provides a forward unloading annular cooler with unloading detection function. The annular cooler trolley 80 includes an offset trolley body 810, a rocker arm 830, and a rocker arm wheel 840 disposed at the free end of the rocker arm 830. The free end of the rocker arm 830 is the end of the rocker arm 830, which is well known in the art and will not be described in detail here. The offset trolley body 810 is rotatably disposed relative to the rotating frame. The offset trolley body 810 includes a front end 811 and a rear end 812 disposed opposite to each other. The center of gravity of the offset trolley body 810 is located at the front end 811. The rocker arm 830 is fixedly connected to the offset trolley body 810, and the center of gravity of the rocker arm 830 is disposed close to the front end 811.

[0049] The annular support rail 70 is positioned horizontally below the rocker arm wheel 840, and the annular support rail 70 abuts against the rocker arm wheel 840 to limit the rotation angle of the rocker arm 830; wherein, the annular support rail 70 includes a cooling horizontal section 710 and a discharge guide section 720 connected circumferentially, the discharge guide section 720 being concave and positioned horizontally below the cooling horizontal section 710.

[0050] 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. This enables the annular cooling machine trolley 80 to run and unload in the forward direction. As the names suggest, the front end 811 and the rear end 812 in this application are based on the running direction of the annular cooling machine; the end running in front is the front end 811, and the end running behind is the rear end 812.

[0051] The annular support rail 70 is positioned horizontally 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.

[0052] 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.

[0053] 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 body, forming a balance with the rotation axis as the boundary. At this time, the annular cooling machine trolley 80 body is limited to a horizontal state and no unloading is performed. 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.

[0054] 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.

[0055] Furthermore, the unloading detection device 90 is located above the annular support rail 70. The unloading detection device 90 includes a trigger arm 910, a limit switch 920, a compression spring 930, and a mounting base 940. The top of the trigger arm 910 is hinged to the annular cooler frame 10. The trigger arm 910 includes a trigger end 9111 and a connecting end 9112 disposed opposite to each other. The trigger end 9111 is located above the unloading guide section 720, and the connecting end 9112 extends obliquely upward from the trigger end 9111 to above the cooling horizontal section 710. The mounting base 940 is located below the connecting end 9112 and is fixedly connected to the annular cooler frame 10. The compression spring 930 connects the connecting end 9112 and the mounting base 940, making the distance between the trigger arm 910 and the mounting base 940 adjustable.

[0056] The limit switch 920 is located on the mounting base 940 on the side away from the compression spring 930. The limit switch 920 is located below the trigger arm 910 and the trigger end 9111 of the limit switch 920 is oriented towards the trigger arm 910. The limit switch 920 is fixedly connected to the mounting base 940.

[0057] It is worth noting for those skilled in the art that the unloading detection device 90 can, on the one hand, assist the forward unloading process of the annular cooler trolley 80, further improving the smoothness of forward unloading; on the other hand, by setting the unloading detection device 90, when the sintered ore 610 on the annular cooler trolley 80 becomes caked and cannot be properly rotated, the unloading detection device 90 can also promptly trigger an alarm and stop the machine to ensure equipment safety. Specifically, by hinged to the top of the trigger arm 910 with the annular cooler frame 10, the specific hinge position can be set according to actual needs, so that the trigger arm 910 can rotate around the hinge fulcrum within a certain range. At this time, the trigger arm 910 is equivalent to a "lever"; wherein, the trigger end 9111 of the trigger arm 910 is used to contact the rocker arm wheel 840. When the rocker arm wheel 840 has not yet contacted the unloading device 910, the trigger arm 910 is in the initial state. At this time, the trigger end 9111 has a certain distance from the unloading track section 720. As the annular cooler trolley 80 continuously moves forward... During the forward movement, the force applied by the rocker arm wheel 840 to the trigger arm 910 gradually increases. Through the lever action of the trigger arm 910, the compression spring 930 is further compressed. The compression spring 930, in turn, provides a certain force toward the connecting end 9112. According to the lever principle, the trigger end 9111 has a reaction force toward the rocker arm wheel 840, thereby propelling the rocker arm wheel 840 toward the unloading track section 720. This helps the ring cooler trolley 80 to better perform forward unloading, effectively solving the problem of unsmooth unloading in the prior art where the ring cooler trolley 80 uses reverse unloading.

[0058] On the other hand, if the trolley 80 of the cooling machine cannot perform forward unloading normally due to material caking or other reasons, the trigger arm 910 continues to compress the compression spring 930. When it reaches a certain level, the trigger arm 910 will touch the trigger end 9111 of the limit switch 920, which can interlock the limit switch 920 with the drive device 20 signal, thereby realizing alarm shutdown and other solutions to ensure the safety of the equipment.

[0059] Furthermore, the position of the unloading detection device 90 needs further explanation. In order to ensure timely detection of whether the ring cooler trolley 80 is properly tilting and unloading, the unloading device of this application is located above the tilting section 721. Specifically, the trigger end 9111 is located above the unloading track changing section 720, and the connecting end 9112 extends obliquely upward from the trigger end 9111 to above the cooling horizontal section 710. In this way, unloading detection can be performed in a timely manner.

[0060] It should be further noted that the limit switch 920 used in this application has the advantages of sensing performance, reliable operation, stable performance, fast frequency response, and long service life. The limit switch 960 can be a rocker arm type limit switch 960, such as the limit switch 960 with model number LX10-12. Those skilled in the art can select according to their needs.

[0061] In a preferred embodiment of the present invention, the mounting base 940 includes a mounting base plate 941, a spring seat 942, and a supporting upright plate 944; wherein, the mounting base plate 941 is arranged parallel to the cooling horizontal section 710, and the mounting base plate 941 is fixedly connected to the annular cooler frame 10; the spring seat 942 is fixed to the top of the mounting base plate 941, and the spring seat 942 has a mounting inclined surface 943 on the side facing the connecting end 9112 for mounting the compression spring 930, and the compression spring 930 is connected between the mounting inclined surface 943 and the connecting end 9112; the supporting upright plate 944 is disposed between the spring seat 942 and the connecting end 9112, and the supporting upright plate 944 is fixed to the top of the mounting base plate 941 and extends upward by a predetermined length; the limit switch 920 is fixed to the top of the supporting upright plate 944.

[0062] Specifically, the mounting base plate 941 is used to mount the spring seat 942 and the support plate 944. The spring seat 942 is used to mount the compression spring 930, and the support plate 944 is used to mount the limit switch 920. It is worth noting that the spring seat 942 has a mounting slope 943 on the side facing the connecting end 9112 for mounting the compression spring 930. The compression spring 930 is connected between the mounting slope 943 and the connecting end 9112, thus ensuring that the axis of the compression spring 930 is perpendicular to the mounting slope 943 and adapts to the tilt angle of the trigger arm 910. To facilitate accurate and quick triggering of the limit switch 920, this embodiment uses the support plate 944, which extends upwards by a certain length. The specific length should be set according to actual needs and will not be elaborated here.

[0063] Furthermore, the top of the support plate 944 is provided with multiple mounting holes extending along the extension direction of the cooling horizontal section 710, and the limit switch 920 is connected to the support plate 944 by screws passing through the mounting holes. In other embodiments, the fixed connection between the limit switch 920 and the support plate 944 can also be in other ways, such as welding, bolting, or integral molding, etc., which can be set according to actual needs.

[0064] In a preferred embodiment, the trigger arm 910 includes a trigger arm body 911 and a trigger plate 912; the top of the trigger arm body 911 is hinged to the ring cooler frame 10, and the trigger arm body 911 includes the trigger end 9111 and the connecting end 9112 disposed opposite to each other;

[0065] The trigger plate 912 is fixed to the bottom of the trigger arm body 911, and the trigger plate 912 is arranged correspondingly to the limit switch 920; wherein, when the rocker arm wheel 840 abuts against the trigger end 9111, the trigger plate 912 moves toward the limit switch 920.

[0066] It should be noted that by setting the trigger plate 912 in a corresponding manner to the limit switch 920, when the annular cooling machine trolley 80 is not unloading normally, the trigger plate 912 will touch the trigger end 9111 of the limit switch 920, thus achieving efficient and precise control. The shape of the trigger plate 912 should be matched to the trigger end 9111 of the limit switch 920.

[0067] In another preferred embodiment, the annular cooler frame 10 includes a trigger arm base 970, which is disposed above the trigger arm 910. The trigger arm 910 further includes a triangular connector 913, which is fixed to the top of the trigger arm body 911. The connector 913 is hinged to the trigger arm base 970, allowing the trigger arm body 911 to be rotatably mounted around the hinge point. This embodiment provides a more stable and reliable hinge through the hinge between the connector 913 and the trigger arm base 970. Furthermore, both the trigger arm base 970 and the connector 913 can be detachable for easy disassembly, maintenance, and replacement.

[0068] Further, the offset trolley body 810 includes a trolley body and a connecting shaft 820; the connecting shaft 820 divides the trolley body into a front end 811 and a rear end 812 along the running direction of the annular cooler, and the center of gravity of the trolley body is located at the front end 811; the connecting shaft 820 is fixed to the bottom of the trolley body along the width direction of the trolley body, and the connecting shaft 820 is rotatably connected to the rotating frame, and the trolley body is flipped relative to the rotating frame through the connecting shaft 820; the rocker arm 830 is fixedly connected to the connecting end 9112 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.

[0069] In a preferred embodiment, the unloading detection device 90 further includes a first guide post 950 and a second guide post 960; wherein, the first guide post 950 is fixed to the mounting inclined surface 943 and extends toward the connecting end 9112 of the trigger arm 910 by a first preset length; the second guide post 960 is fixed to the connecting end 9112 and extends toward the first guide post 950 by a second preset distance, the first guide post 950 and the second guide post 960 are correspondingly arranged, and there is a gap between the first guide post 950 and the second guide post 960; the compression spring 930 is sleeved on the outer surface of the first guide post 950 and the second guide post 960.

[0070] In this embodiment, by setting a first guide post 950 and a second guide post 960, the compression spring 930 can operate more stably and reliably through the guiding effect of the first guide post 950 and the second guide post 960. The first preset length and the second preset length can be set according to actual needs, but it should be ensured that there is a certain gap between the first guide post 950 and the second guide post 960 in the initial state, ensuring that the compression spring 930 can be compressed within a certain range, and ensuring that the trigger plate 912 can trigger the limit switch 920. Alternatively, the first guide post 950 and the second guide post 960 can be configured in a plug-in form. Specifically, the first guide post 950 can be configured as a first pipe, and the second guide post 960 as a second pipe, with the inner diameter of the first pipe being larger than the inner diameter of the second pipe. This ensures that the second guide post 960 can be movable along the inner wall of the first guide post 950, which can also guide the compression spring 930, allowing the compression spring 930 to operate more stably and reliably.

[0071] In one optional embodiment, the connection 913 is fixed to the trigger arm body 911 on the side near the trigger end 9111. In other embodiments, those skilled in the art may also fix the connection 913 to other positions on the top of the trigger arm body 911 as needed, as long as the lever action of the trigger arm 910 can be achieved.

[0072] It should be noted that the annular support rail 70 of this application adopts the form of a support rail, that is, the annular support rail 70 can support the rocker arm wheel 840 of the annular cooling machine trolley 80, rather than the method of pressing the rocker arm wheel 840 by pressing the rail as in the prior art.

[0073] 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. It is noteworthy that when the annular cooling machine trolley 80 reaches the tilting section 721, because the rail of the tilting section 721 extends obliquely downwards, the supporting force of the annular support rail 70 on the rocker arm wheel 840 is not perpendicular to the tilting section 721, and can be divided into a vertically upward component and a horizontally forward component. From this point onwards, the torque brought by this upward component will gradually become 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 and enter the unloading state. When the annular cooling machine trolley 80 reaches the reset section 722, the rocker arm wheel 840 gradually comes into contact with the reset section 722. At this time, 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 machine trolley 80 gradually returns to the horizontal state. In other words, the offset trolley body 810 is limited to the reset state.

[0074] 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.

[0075] 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.

[0076] 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.

[0077] 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.

[0078] 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.

[0079] 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 721 is designed to be 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.

[0080] 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 forward-discharging annular cooler with unloading detection function, comprising an annular cooler frame and a rotating frame, wherein the rotating frame is mounted on the annular cooler frame; characterized in that, It also includes a ring-shaped support rail, multiple ring-cooling machine trolleys connected in sequence, and a material unloading detection device. 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 cooling trolley includes an offset trolley body, a rocker arm, and a rocker arm wheel disposed at the free end of the rocker arm; the offset trolley body is rotatably disposed relative to the rotating frame, and the offset trolley body includes a front end and a rear end disposed opposite to each other, with the center of gravity of the offset trolley body located at the front end; the rocker arm is fixedly connected to the offset trolley body, and the center of gravity of the rocker arm is disposed close to the front end; The annular support rail is positioned horizontally 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 a material unloading guide section connected circumferentially, the material unloading guide section being concave and positioned horizontally below the cooling horizontal section; The unloading detection device is located above the annular support rail. The unloading detection device includes a trigger arm, a limit switch, a compression spring, and a mounting base. The top of the trigger arm is hinged to the annular cooler frame. The trigger arm includes a trigger end and a connecting end arranged opposite each other. The trigger end is located above the unloading track-changing section, and the connecting end extends obliquely upwards from the trigger end to above the cooling horizontal section. The mounting base is located below the connecting end and is fixedly connected to the annular cooler frame. The compression spring connects the connecting end and the mounting base to make the distance between the trigger arm and the mounting base adjustable. The limit switch is located on the side of the mounting base away from the compression spring. The limit switch is located below the trigger arm and the trigger end of the limit switch faces the trigger arm. The limit switch is fixedly connected to the mounting base.

2. The forward discharge ring cooler with discharge detection function according to claim 1, characterized in that, The mounting base includes a mounting base plate, a spring seat, and a supporting upright plate; wherein... The mounting base plate is arranged parallel to the cooling horizontal section, and the mounting base plate is fixedly connected to the annular cooler frame; the spring seat is fixed to the top of the mounting base plate, and the spring seat has a mounting slope for mounting the compression spring on the side facing the connecting end, and the compression spring is connected between the mounting slope and the connecting end; the support plate is disposed between the spring seat and the connecting end, the support plate is fixed to the top of the mounting base plate and extends upward by a preset length; the limit switch is fixed to the top of the support plate.

3. The forward discharge ring cooler with discharge detection function according to claim 2, characterized in that, The top of the support plate has multiple mounting holes that extend along the extension direction of the cooling horizontal section, and the limit switch is connected to the support plate by screws passing through the mounting holes.

4. The forward discharge ring cooler with discharge detection function according to claim 1, characterized in that, The trigger arm includes a trigger arm body and a trigger plate; the top of the trigger arm body is hinged to the ring cooler frame, and the trigger arm body includes the trigger end and the connecting end arranged opposite to each other; The trigger plate is fixed to the bottom of the trigger arm body, and the trigger plate is arranged correspondingly to the limit switch; wherein, when the rocker arm wheel abuts against the trigger end, the trigger plate moves toward the limit switch.

5. The forward discharge ring cooler with discharge detection function according to claim 4, characterized in that, The ring cooler frame includes a trigger arm base, which is located above the trigger arm. The trigger arm also includes a triangular connecting plate, which is fixed to the top of the trigger arm body. The connecting plate is hinged to the trigger arm base so that the trigger arm body is rotatably mounted around the hinge point.

6. The forward discharge ring cooler with discharge detection function according to claim 1, characterized in that, The offset trolley body includes a trolley body and a connecting shaft; the connecting shaft divides the 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 trolley body is located at the front end; the connecting shaft is fixed to the bottom of the trolley body along the width direction of the trolley body, and the connecting shaft is rotatably connected to the rotating frame, and the trolley body is flip-mounted 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.

7. The forward discharge ring cooler with discharge detection function according to claim 2, characterized in that, The unloading detection device further includes a first guide post and a second guide post; wherein... The first guide post is fixed to the mounting inclined surface and extends toward the connecting end of the trigger arm by a first preset length; the second guide post is fixed to the connecting end and extends toward the first guide post by a second preset distance, the first guide post and the second guide post are arranged correspondingly, and there is a gap between the first guide post and the second guide post; the compression spring is sleeved on the outer surface of the first guide post and the second guide post.

8. The forward discharge ring cooler with discharge detection function according to claim 5, characterized in that, The connecting plate is fixed to the trigger arm body on the side near the trigger end.

9. The forward discharge ring cooler with discharge detection function according to 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.

10. The forward discharge ring cooler with discharge detection function according to claim 9, 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.

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