Sintering machine trolley return on-line replacement device

Abstract

The utility model provides a sintering machine trolley return stroke on-line replacing device which comprises a rail assembly, a lifting assembly and a trolley pulling assembly, the rail assembly is located above a sintering machine trolley located on a return stroke rail, and the rail assembly extends in the transverse direction of a sintering machine and extends to the outside of the sintering machine from the inside of the sintering machine. The lifting assembly is movably connected to the rail assembly and used for lifting the faulty trolley and conveying the faulty trolley to the outside of the sintering machine in the extending direction of the rail assembly, lifting a new trolley to be conveyed into the sintering machine in the extending direction of the rail assembly and then lowering the new trolley into the trolley installation space corresponding to the faulty trolley. The trolley pulling assembly is used for pulling the sintering machine trolley which is adjacent to the rear portion of the fault trolley in the return stroke direction so that the fault trolley can be in an isolated state. The online replacement of the strip material of the sintering machine trolley can be realized, the efficiency is high, the head space is not occupied, a main workshop does not need to be lengthened, the online replacement can be realized on the basis of an old sintering machine, and the sintering quality can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of sintering, in particular to a return on-line replacement device for a sintering machine trolley. Background Art

[0002] Sintering machine trolley is one of the important components of sintering machine, with large number and harsh working environment. Sintering machine has high operation rate, and sintering machine trolley grate and bearing are easy to be damaged. If it is serious to a certain extent, such as wheel falling off or large pieces of grate falling off the trolley surface or sticking, the damaged sintering machine trolley needs to be replaced or repaired.

[0003] The traditional method of replacing a sintering machine trolley is to stop feeding the feeding device, run the faulty trolley with empty material to a suitable position at the tail of the machine, stop the sintering machine, start the hydraulic device at the tail of the machine to move the tail moving frame backwards so that there is no thrust forward and backward on the faulty trolley, and then lift the faulty trolley out of the sintering machine for replacement.

[0004] This replacement method is more convenient for sintering machines that have not been put into production or are under construction, because there is no material on the sintering machine trolley that needs to be cleaned. However, there are the following disadvantages for replacing the sintering machine trolley in production: 1. The downtime is long, usually more than 1 hour. After the faulty trolley stops feeding, the igniter needs to be adjusted down to avoid burning the trolley, and then the sintering machine trolley is moved to a suitable lifting position and stopped before lifting. 2. Affecting the quality of sintered ore. Long-term downtime will cause fluctuations in the sintering production process, and it will take a long time to adjust the production, which will reduce the quality of sintered ore.

[0005] Therefore, how to solve the technical problems such as the difficulty in replacing the sintering machine trolley in the prior art has become an important technical problem that needs to be solved by people in this field.

[0006] In view of this, it is necessary to propose a sintering machine trolley return online replacement device to solve or at least alleviate the above defects. Utility Model Content

[0007] The main purpose of the utility model is to provide a sintering machine trolley return online replacement device to solve the technical problems in the prior art that the sintering machine trolley replacement requires empty material shutdown replacement, resulting in long replacement time and reduced sintering quality.

[0008] In order to achieve the above-mentioned purpose, the utility model provides a sintering machine trolley return online replacement device, comprising a track assembly, a lifting assembly and a trolley pulling assembly, wherein:

[0009] The track assembly is located above the sintering machine trolley on the return track, and the track assembly extends in the transverse direction of the sintering machine and extends from the inside of the sintering machine to the outside of the sintering machine;

[0010] The lifting assembly is movably connected to the track assembly, and is used to lift the faulty trolley and transport it to the outside of the sintering machine along the extension direction of the track assembly, and to lift a new trolley and transport it to the inside of the sintering machine along the extension direction of the track assembly, and then lower it into the trolley installation space corresponding to the faulty trolley;

[0011] The trolley pulling assembly is used to pull the sintering machine trolley immediately behind the faulty trolley along the return direction, so that the faulty trolley is in an isolated state.

[0012] Preferably, the rail assembly includes two parallel and spaced-apart transverse extension rails and a plurality of columns for supporting the transverse extension rails, the spacing between the two transverse extension rails is larger than the dimension of a single sintering machine trolley along the return direction, the lifting assembly is movably connected between the two transverse extension rails, and each transverse extension rail extends from the inside of the sintering machine to the outside of the sintering machine.

[0013] Preferably, each of the transversely extending rails extends from the inside of the sintering machine to both sides to the outside of the sintering machine.

[0014] Preferably, each of the transversely extending rails extends from the inside of the sintering machine to the outside of the sintering machine on one side.

[0015] Preferably, the lifting assembly includes a moving trolley and an electromagnetic suction cup, the moving trolley is movably connected between the two transversely extending rails, and the electromagnetic suction cup is connected below the moving trolley and moves synchronously with the moving trolley.

[0016] Preferably, the trolley pulling assembly includes a driving mechanism and a connecting mechanism, the connecting mechanism is connected to the wheel of the sintering machine trolley immediately behind the faulty trolley along the return direction, the driving mechanism drives the connecting mechanism to pull the sintering machine trolley immediately behind the faulty trolley toward the side of the sintering machine tail wheel, so that the faulty trolley is in an isolated state.

[0017] Preferably, the driving mechanism is a hydraulic actuator, which comprises a mounting end and a driving end which are arranged opposite to each other along its extension direction, the mounting end is fixedly connected to the sintering machine frame, and the driving end is connected to the connecting mechanism.

[0018] Preferably, the connection mechanism is a steel wire rope, which is wound around a wheel of a sintering machine trolley immediately behind the faulty trolley and connected to the driving end.

[0019] Preferably, it further comprises a fixing frame corresponding to the wheels of the sintering machine trolley, the fixing frame being installed on the return track and used to prevent the sintering machine trolley immediately in front of the faulty trolley from moving backwards along the return direction.

[0020] Preferably, a plurality of the upright posts are arranged at intervals along the extension direction of the transversely extending track.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] (1) The sintering machine trolley can be replaced online without long-term shutdown, which is highly efficient.

[0023] (2) The faulty trolley can be in a free state when being lifted out, thus ensuring the smooth lifting out of the faulty trolley.

[0024] (3) It does not occupy head space and does not require the lengthening of the main plant building. It can be realized by modifying the old sintering machine. It is easy to change the location and there are no environmental and dust problems.

[0025] (4) There is no need to modify the track curve of the sintering machine, which does not affect the stability of operation.

[0026] (5) A special electromagnetic trolley hoist can be used to achieve contactless lifting of the trolley. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0028] Figure 1 This is a schematic diagram of the installation position of the overall structure in one embodiment of the utility model in a sintering machine;

[0029] Figure 2 It is a partial enlarged view of the overall structure in one embodiment of the utility model;

[0030] Figure 3 for Figure 2 Schematic diagram of the cross section along the AA direction.

[0031] The purpose, features and advantages of the present invention will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

[0032] Description of Figure Numbers:

[0033] 10. Track assembly; 110. Laterally extending track; 120. Column; 20. Lifting assembly; 210. Moving trolley; 220. Electromagnetic suction cup; 310. Hydraulic actuator; 311. Mounting end; 312. Driving end; 320. Wire rope; 40. Fixed frame; 50. Sintering machine trolley; 510. Faulty trolley; 520. New trolley; 530. Wheels of sintering machine trolley; 60. Sintering machine; 610. Sintering machine frame; 620. Trolley installation space. DETAILED DESCRIPTION

[0034] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as described in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0037] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0038] Please refer to the attached Figures 1 to 3 In one embodiment of the utility model, a sintering machine trolley return online replacement device includes a track assembly 10, a lifting assembly 20 and a trolley pulling assembly (not shown in the figure), wherein:

[0039] The track assembly 10 is located above the sintering machine trolley 50 on the return track, and the track assembly 10 extends in the lateral direction of the sintering machine 60 and extends from the inside of the sintering machine 60 to the outside of the sintering machine 60; Figure 2-3As shown, the track assembly 10 crosses the return space of the sintering machine 60, that is, within the area between the sintering process track and the return track above the sintering, and the track assembly 10 extends from the inside of the sintering machine 60 to the outside of the sintering machine 60 to facilitate the lifting of the faulty trolley 510 to the outside of the sintering machine 60 and the lifting of the new trolley 520 into the inside of the sintering machine 60, thereby completing the replacement of the sintering machine trolley 50.

[0040] The lifting assembly 20 is movably connected to the track assembly 10, and is used to lift the faulty trolley 510 and transport it to the outside of the sintering machine 60 along the extension direction of the track assembly 10, and lift the new trolley 520 and transport it to the inside of the sintering machine 60 along the extension direction of the track assembly 10, and then lower it into the trolley installation space 620 corresponding to the faulty trolley 510;

[0041] The trolley pulling assembly is used to pull the sintering machine trolley 50 immediately behind the faulty trolley 510 in the return direction, so that the faulty trolley 510 is in an isolated state. Figure 2 As shown, the trolley pulling assembly pulls the sintering machine trolley 50 immediately adjacent to the right side of the faulty trolley 510 to separate it from the faulty trolley 510 .

[0042] As a preferred example, the position of the track assembly 10 is close to the head return position of the sintering machine 60, where the ambient temperature is relatively low and the thrust between the sintering machine trolleys 50 is relatively small, which is more suitable for replacement operations.

[0043] As a preferred embodiment, the track assembly 10 includes two parallel and spaced transverse extension tracks 110 and a plurality of columns 120 for supporting the transverse extension tracks 110. The spacing between the two transverse extension tracks 110 is greater than the size of a single sintering machine trolley 50 along the return direction. The lifting assembly 20 is movably connected between the two transverse extension tracks 110. Each transverse extension track 110 extends from the inside of the sintering machine 60 to the outside of the sintering machine 60. Further, the plurality of columns 120 are spaced apart along the extension direction of the transverse extension tracks 110. Specifically, the number and arrangement of the plurality of columns 120 are set by those skilled in the art as required.

[0044] As a preferred embodiment, each of the transversely extending rails 110 extends from the inside of the sintering machine 60 to both sides to the outside of the sintering machine 60. Figure 3As shown, each of the transversely extending rails 110 passes through both sides of the sintering machine 60. This has the advantage that two sets of lifting assemblies 20 can be provided, one set for lifting the faulty trolley 510, and the other set for lifting the new trolley 520. For example, the lifted faulty trolley 510 is transported out from the inside of the sintering machine 60 to the left, and the new trolley 520 is transported from the outside of the sintering machine 60 from the right side to the inside. This can shorten the replacement time and improve the replacement efficiency.

[0045] As another preferred embodiment, each of the transverse extension rails 110 extends from the inside of the sintering machine 60 to the outside of the sintering machine 60. That is, the transverse extension rail 110 can also be extended along one side, the faulty trolley 510 is first lifted out along the transverse extension rail 110, and then the new trolley 520 is lifted in through the lifting assembly 20. Compared with the above solution, the replacement time of this embodiment will be longer.

[0046] Furthermore, the lifting assembly 20 includes a moving trolley 210 and an electromagnetic suction cup 220. The moving trolley 210 is movably connected between the two transversely extending rails 110. The electromagnetic suction cup 220 is connected to the bottom of the moving trolley 210 and moves synchronously with the moving trolley 210. The moving trolley 210 can adopt a crane or a hoist commonly used in a factory. An electromagnetic suction cup 220 is arranged under the moving trolley 210. The electromagnetic suction cup 220 can be in the form of an electromagnet. When powered on, the electromagnet can generate a strong magnetic force and can lift the sintering machine trolley 50 whose main material is ductile iron (QT500). When the power is off, the sintering machine trolley 50 is separated from the electromagnet and descends under the action of gravity.

[0047] As a preferred embodiment, the trolley pulling assembly includes a driving mechanism (not shown in the figure) and a connecting mechanism (not shown in the figure), the connecting mechanism is connected to the wheel of the sintering machine trolley 50 immediately behind the faulty trolley 510 along the return direction, the driving mechanism drives the connecting mechanism to pull the sintering machine trolley 50 immediately behind the faulty trolley 510 toward the side of the tail wheel of the sintering machine 60, so that the faulty trolley 510 is in an isolated state.

[0048] As a preferred embodiment, the driving mechanism is a hydraulic actuator 310, which includes a mounting end 311 and a driving end 312 arranged opposite to each other along its own extension direction, wherein the mounting end 311 is fixedly connected to the skeleton of the sintering machine 60, and the driving end 312 is connected to the connecting mechanism. The hydraulic actuator 310 is installed on the original skeleton beam of the sintering machine 60, and functions to pull the faulty trolley 510 away from the sintering machine trolley 50 adjacent to the faulty trolley 510 by a certain distance, so that the faulty trolley 510 is in an isolated state. In other embodiments, the driving mechanism can also be in other ways, such as an electric push rod.

[0049] Furthermore, the connection mechanism is a steel wire rope 320 , which is wound around a wheel of the sintering machine trolley 50 immediately behind the faulty trolley 510 and connected to the driving end 312 .

[0050] Furthermore, it also includes a fixing frame 40 corresponding to the wheels of the sintering machine trolley 50, the fixing frame 40 is installed on the return track and is used to prevent the sintering machine trolley 50 immediately in front of the faulty trolley 510 from moving backward in the return direction. The fixing frame 40 fixes the sintering machine trolley 50 immediately in front of the faulty trolley 510, so that the faulty trolley 510 is in a free state, ensuring that the faulty trolley 510 is lifted out smoothly.

[0051] As a preferred working process: when taking the faulty trolley 510, use the wire rope 320 to cover the wheel of the sintering machine trolley 50 immediately behind the faulty trolley 510, and use the fixing frame 40 to fix the wheel of the sintering machine trolley 50 immediately in front of the faulty trolley 510. The trolley pulling assembly adopts a hydraulic actuator 310. The hydraulic actuator 310 pulls a certain distance, about 30 to 100 mm, between the faulty trolley 510 and the sintering machine trolley 50 immediately behind the faulty trolley 510. Under the action of force, the faulty trolley 510 will move toward the sintering machine trolley 50 immediately behind the faulty trolley 510 to a free state / isolated state, and the sintering machine trolley 50 immediately in front of the faulty trolley 510 will not move backward due to the restriction of the fixing frame 40. After the faulty trolley 510 is in an isolated state, the electromagnetic chuck 220 of the lifting assembly 20 above the faulty trolley 510 is energized to lift the faulty trolley 510 and transport it to the outside of the sintering machine 60. At the same time, the electromagnetic chuck 220 of the lifting assembly 20 outside the sintering machine 60 is energized to lift the new trolley 520 outside and transport it to the inside of the sintering machine 60. That is, while the faulty trolley 510 is transported out through the transverse extension track 110, the new trolley 520 is transported in through the transverse extension track 110.

[0052] After the new trolley 520 is transported to the top of the original faulty trolley 510, the lifting assembly 20 hangs the new trolley 520 on the horizontal extension track 110, and the electromagnetic suction cup 220 is powered off, so that the new trolley 520 falls into the trolley installation space 620 corresponding to the return track. After the new trolley 520 falls into the track, the hydraulic actuator 310 is slowly loosened, and the steel wire rope 320 on the fixing frame 40 and the wheel is removed. The gap between the trolleys will disappear under the force of the weight at the tail of the sintering machine 60. The whole process takes ~10 minutes, thereby realizing the return of the trolley online replacement.

[0053] This application has the following advantages:

[0054] (1) The sintering machine trolley 50 can be replaced with materials. The outgoing of the faulty trolley 510 and the incoming of the new trolley 520 can be carried out simultaneously, which is highly efficient.

[0055] (2) The faulty trolley 510 can be in a free state when being hoisted out, thereby ensuring that the faulty trolley 510 can be hoisted out smoothly.

[0056] (3) It does not occupy head space and does not require the lengthening of the main plant building. It can be achieved by transforming the old sintering machine 60.

[0057] (4) It is easy to change the location without any environmental or dust problems.

[0058] (5) There is no need to modify the 60 track curve of the sintering machine, which does not affect the stability of operation.

[0059] (6) A special electromagnetic trolley hoist can be used to achieve contactless lifting of the trolley.

[0060] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A sintering machine trolley return online replacement device, characterized in that: It includes a track assembly, a lifting assembly and a trolley pulling assembly, wherein: The track assembly is located above the sintering machine trolley on the return track, and the track assembly extends in the transverse direction of the sintering machine and extends from the inside of the sintering machine to the outside of the sintering machine; The lifting assembly is movably connected to the track assembly, and is used to lift the faulty trolley and transport it to the outside of the sintering machine along the extension direction of the track assembly, and to lift a new trolley and transport it to the inside of the sintering machine along the extension direction of the track assembly, and then lower it into the trolley installation space corresponding to the faulty trolley; The trolley pulling assembly is used to pull the sintering machine trolley immediately behind the faulty trolley along the return direction, so that the faulty trolley is in an isolated state.

2. The sintering machine trolley return online replacement device according to claim 1, characterized in that: The track assembly includes two parallel and spaced transverse extension rails and a plurality of columns for supporting the transverse extension rails. The spacing between the two transverse extension rails is larger than the size of a single sintering machine trolley along the return direction. The lifting assembly is movably connected between the two transverse extension rails. Each of the transverse extension rails extends from the inside of the sintering machine to the outside of the sintering machine.

3. The sintering machine trolley return online replacement device according to claim 2, characterized in that: Each of the transversely extending rails extends from the inside of the sintering machine to both sides to the outside of the sintering machine.

4. The sintering machine trolley return online replacement device according to claim 2, characterized in that: Each of the transversely extending rails extends from the inside of the sintering machine to the outside of the sintering machine on one side.

5. The sintering machine trolley return online replacement device according to claim 2, characterized in that: The lifting assembly comprises a moving trolley and an electromagnetic suction cup. The moving trolley is movably connected between the two transversely extending rails. The electromagnetic suction cup is connected below the moving trolley and moves synchronously with the moving trolley.

6. The sintering machine trolley return online replacement device according to claim 1, characterized in that: The trolley pulling assembly includes a driving mechanism and a connecting mechanism, the connecting mechanism is connected to the wheel of the sintering machine trolley immediately behind the faulty trolley along the return direction, the driving mechanism drives the connecting mechanism to pull the sintering machine trolley immediately behind the faulty trolley toward the side of the sintering machine tail wheel, so that the faulty trolley is in an isolated state.

7. The sintering machine trolley return online replacement device according to claim 6, characterized in that: The driving mechanism is a hydraulic actuator, which includes a mounting end and a driving end that are relatively arranged along its own extension direction, the mounting end is fixedly connected to the sintering machine frame, and the driving end is connected to the connecting mechanism.

8. The sintering machine trolley return online replacement device according to claim 7, characterized in that: The connecting mechanism is a steel wire rope, which is wound around the wheel of the sintering machine trolley immediately behind the faulty trolley and connected to the driving end.

9. The sintering machine trolley return online replacement device according to claim 6, characterized in that: It also includes a fixing frame corresponding to the wheels of the sintering machine trolley, which is installed on the return track and is used to prevent the sintering machine trolley immediately in front of the faulty trolley from moving backward along the return direction.

10. The sintering machine trolley return online replacement device according to claim 2, characterized in that: The plurality of upright posts are arranged at intervals along the extension direction of the transversely extending track.

Images