Hearth decoking device

Abstract

The utility model discloses a hearth decoking device. The hearth decoking device comprises a mounting frame, a supporting and fixing mechanism, a decoking device and a rotary joint, the mounting frame comprises a first bracket and a second bracket, and the second bracket is pivotally connected with the first bracket; the supporting and fixing mechanism is arranged on the first bracket; the decoking device is arranged on the second bracket; the rotary joint is pivotally mounted on the first bracket and is used for connecting the decoking device; the pivot axis of the second support and the pivot axis of the rotary connector are coaxially arranged. According to the coke cleaning device, when the coke cleaning device needs to be aligned with coke blocks on the inner wall of the hearth, the second support is rotated, the position of the coke cleaning device is adjusted, hydraulic oil conveying between the rotating connector and the coke cleaning device is achieved by arranging the rotating connector, arrangement of hydraulic pipes between the rotating connector and the coke cleaning device is optimized, winding of the hydraulic pipes in the rotating process is reduced, and the coke cleaning efficiency is improved. The hydraulic oil transmission stability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of domestic waste incinerator overhauls, especially to hearth decoking device. BACKGROUND

[0002] The boiler equipment is operated for a long time, and the outlet smoke temperature of the incinerator is high (usually greater than 1000 DEG C), close to the incineration fly ash melting point. When the fly ash is in the molten state, it is adhered to the inner wall of the hearth and is cooled, and coking is easily generated to produce coke blocks. The coke blocks are adhered to the inner wall of the hearth to reduce the heat transfer efficiency and cause high-temperature corrosion, damage the water-cooled wall, and as the coke blocks become larger, there is even a risk of falling and damaging the grate.

[0003] In the related art, the hearth decoking device adopts a hydraulic drive mode to clean the coke blocks on the inner wall of the hearth. Since the hydraulic drive is adopted, when the position of the hearth decoking device is adjusted, the hydraulic pipeline needs to be twisted, and winding is easily generated, which can cause damage to the hydraulic pipeline. SUMMARY

[0004] The utility model aims at at least solves one of the prior art technical problems. For this reason, one purpose of the utility model is to propose a hearth decoking device. When the decoking device needs to be aligned with the coke blocks on the inner wall of the hearth, the second support is rotated, and the position of the decoking device is adjusted. In the above process, a rotary joint is arranged between the decoking device and the support fixing mechanism, the hydraulic pipe arrangement between the rotary joint and the decoking device is optimized, the winding of the hydraulic pipe in the rotating process is reduced, and the stability of the hydraulic oil transmission is improved.

[0005] The utility model provides a hearth decoking device, including mounting frame, including first support and second support, the second support can pivotally connect first support, support fixed mechanism, set up in first support, decoking device, set up in second support, rotary joint, the rotary joint can pivotally install in first support and be used for connecting decoking device, the pivot axis of second support and the pivot axis of rotary joint are coaxial arrangement.

[0006] In some embodiments, the hearth decoking device further comprises a slewing device, and the slewing device is used to drive the second support and the rotary joint to rotate synchronously.

[0007] In some embodiments, the slewing device comprises a slewing power source and a slewing transmission mechanism, the slewing power source is arranged on the first support, the slewing transmission mechanism comprises a slewing reducer, a first connecting assembly and a second connecting assembly, the slewing power source is in transmission connection with the slewing reducer, the slewing reducer and the rotary joint are in transmission connection through the first connecting assembly, and the slewing reducer and the second support are in transmission connection through the second connecting assembly.

[0008] In some embodiments, the furnace coking removing device further comprises a hydraulic control mechanism, the hydraulic control mechanism comprises a first valve group and a second valve group; the first valve group is installed on the first support, the first valve group is connected with the support fixing mechanism and the rotating device to control the support fixing mechanism and the rotating device to move; the second valve group is installed on the second support, the second valve group is connected with the coking removing device to control the coking removing device to move; the rotary joint is arranged between the first valve group and the second valve group.

[0009] In some embodiments, the second connecting assembly comprises a transmission shaft and a bearing, the transmission shaft is rotatably connected with the first support through the bearing; the transmission shaft is axially aligned with the pivot axis, part of the transmission shaft extends out of the first support to connect the second support; the transmission shaft has a hydraulic pipe accommodating cavity penetrating through the axial direction.

[0010] In some embodiments, the pivot axis is parallel to the up-down direction; the first support comprises a top plate, a first mounting plate, a second mounting plate and a bottom plate which are arranged in the up-down direction; the top plate is provided with a hanging lug; the first mounting plate is provided with a first valve group mounting portion and a rotary joint connecting portion; the second mounting plate is provided with a rotating device fixing structure; the bottom plate is provided with a bearing mounting notch penetrating through the direction of the pivot axis; the second support is rotatably connected below the bottom plate.

[0011] In some embodiments, the support fixing mechanism comprises a support arm, the support arm comprises at least two support arms which are symmetrically arranged with respect to the center of the pivot axis, one end of each support arm is rotatably connected with the bottom plate; the hydraulic control mechanism comprises a first actuator, the first actuator is used to drive the other end of the support arm to move away from the pivot axis to abut against the inner wall of the furnace.

[0012] In some embodiments, the second support comprises a valve group mounting box and a rotating connecting portion which are connected, the rotating connecting portion is used to connect the second connecting assembly; the valve group mounting box is used to mount the second valve group, the outer wall of the valve group mounting box is provided with a coking removing device mounting structure.

[0013] In some embodiments, the coking removing device comprises a breaking hammer; the second valve group is used to control the breaking hammer to knock the coke block of the inner wall of the furnace.

[0014] In some embodiments, the coking removing device comprises a breaking hammer, a connecting arm and a second actuator; one end of the connecting arm is mounted on the coking removing device mounting structure, the other end of the connecting arm is used to drivingly connect the breaking hammer; the second valve group controls the second actuator to drive the connecting arm to move, so that the connecting arm adjusts the knocking position of the breaking hammer.

[0015] It can be seen from the technical scheme that the embodiments provided by the utility model have the following advantages:

[0016] (1) when the coking device needs to be aligned with the coke block on the inner wall of the hearth, the second support is rotated to adjust the position of the coking device, the hydraulic oil conveying between the rotary joint and the coking device is realized by arranging the rotary joint, the hydraulic pipe arrangement between the rotary joint and the coking device is optimized, the winding of the hydraulic pipe during rotation is reduced, and the stability of the hydraulic oil transmission is improved.

[0017] (2) when the second support drives the coking device to rotate around the pivot axis, the stability of the connection state of the rotary joint and the coking device can be improved due to the coaxial pivot axis of the rotary joint. This makes the hydraulic oil flow path more stable, avoids the pipeline distortion and bending caused by the axis misalignment, thereby preventing the hydraulic oil leakage and ensuring the normal operation of the hydraulic system, and providing continuous and stable power support for the coking device. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creating labor intensity.

[0019] Figure 1 It is the overall structure schematic view of the hearth coking device according to the embodiment of the utility model;

[0020] Figure 2 It is the connection schematic view of the hydraulic control mechanism according to the embodiment of the utility model.

[0021] Reference signs:

[0022] Hearth coking device 100;

[0023] Mounting frame 1, first support 11, top plate 110, first mounting plate 111, second mounting plate 112, bottom plate 113, second support 12, valve group mounting box 121, coking device mounting structure 1211, rotating connection part 122, connecting vertical rod 123, roller 124;

[0024] Supporting and fixing mechanism 2, supporting arm 21, extension arm 22, first execution mechanism 23, first hydraulic rod 231, second hydraulic rod 232;

[0025] Coke cleaning device 3, connecting arm 31, first branch arm 311, second branch arm 312, third branch arm 313, breaking hammer 32, second actuator 33, third hydraulic rod 333, fourth hydraulic rod 334, fifth hydraulic rod 335;

[0026] Hydraulic control mechanism 4, first valve group 41, rotary joint 42;

[0027] Rotary device 5, rotary power source 51, rotary transmission mechanism 52, first connecting assembly 521, second connecting assembly 522, transmission shaft 5221, bearing 5222;

[0028] Suspension lifting lug 6. DETAILED DESCRIPTION

[0029] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are used only for explaining the present application, and cannot be understood as a limitation of the present application.

[0030] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0031] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] In the related art, the boiler can adopt manual coke cleaning and machine coke cleaning.

[0033] The artificial coke cleaning mainly has the following problems: large workload, need to additionally set up and disassemble the scaffold; low work efficiency, workers mainly use the hand-held coke cleaning appliance to clean the coke, and the coke cleaning speed is slow; high risk coefficient, there is a risk that large coke falls and injures workers or damages the scaffold in the coke cleaning process; incomplete coke cleaning, workers are afraid of the risk of large coke falling and dare not clean the coke completely.

[0034] When the coke is cleaned in the machine coke cleaning mode, the position of the coke cleaning device needs to be adjusted to align the coke cleaning device with the coke on the inner wall of the hearth, however, since the hydraulic drive is adopted, the hydraulic pipeline connected with the coke cleaning device is wound when the position of the coke cleaning device is adjusted.

[0035] The utility model aims at at least solving one of the technical problems existing in the prior art. For this purpose, the utility model provides a hearth coke cleaning device 100, when the coke cleaning device 3 needs to be aligned with the coke on the inner wall of the hearth, the second support 12 is rotated, the position of the coke cleaning device 3 is adjusted, in the above process, the rotary joint 42 is arranged, the hydraulic pipe arrangement between the rotary joint 42 and the coke cleaning device 3 is optimized, the winding of the hydraulic pipe in the rotating process is reduced, and the stability of the hydraulic oil transmission is improved.

[0036] Reference will be made below to Figures 1-2 The hearth coke cleaning device 100 according to the utility model embodiment is described.

[0037] Embodiment one

[0038] As shown in Figure 1 The utility model provides a hearth coke cleaning device 100, which comprises a mounting frame 1, a support fixing mechanism 2, a coke cleaning device 3 and a rotary joint 42.

[0039] The mounting frame 1 comprises a first support 11 and a second support 12, the second support 12 is pivotally connected to the first support 11; the support fixing mechanism 2 is arranged on the first support 11; the coke cleaning device 3 is arranged on the second support 12; the rotary joint 42 is pivotally mounted on the first support 11 and is used for connecting the coke cleaning device 3; the pivot axis of the second support 12 is coaxially arranged with the pivot axis of the rotary joint 42.

[0040] Here, the rotary joint 42 and the coke cleaning device 3 can be connected by a hydraulic pipe, and the rotary joint 42 supplies hydraulic oil to the coke cleaning device 3 through the hydraulic pipe. Specifically, the hearth coke cleaning device 100 adopts hydraulic drive, the hydraulic station can be arranged near the manhole door of the boiler, the hydraulic station is connected with the rotary joint 42 through the liquid supply pipeline, and the rotary joint 42 is connected with the coke cleaning device 3 through the hydraulic pipe.

[0041] It should be further explained that the rotary joint 42 is a closed rotary connector for rotating the medium, and the rotary joint 42 can stably transport hydraulic oil to realize the supply and return of hydraulic oil between the oil supply pipeline and the decoking device 3. By arranging the rotary joint 42, the hydraulic pipe arrangement between the rotary joint 42 and the decoking device 3 can be optimized, the winding of the hydraulic pipe during rotation can be reduced, and the stability of the hydraulic oil transmission can be improved.

[0042] The mounting frame 1 serves as a support function of the entire device, and can provide more stable support for the support fixing mechanism 2, the decoking device 3 and the rotary joint 42, so that the mechanisms can be organically combined together. The support fixing mechanism 2 can fix the entire device to the inner wall of the furnace. After being fixed, the second support 12 is rotated to adjust the position of the decoking device 3, so that the decoking device 3 can be aligned with the coke block on the inner wall of the furnace. During the above process, the rotary joint 42, the second support 12 and the decoking device 3 can be synchronously rotated, and the rotary joint 42, the second support 12 and the decoking device 3 can be relatively fixed, so as to reduce the winding of the hydraulic pipe (not shown in the figure) and improve the stability of the hydraulic oil transmission.

[0043] The embodiment has the following advantages:

[0044] (1) When the decoking device 3 needs to be aligned with the coke block on the inner wall of the furnace, the second support 12 is rotated to adjust the position of the decoking device 3. By arranging the rotary joint 42, the hydraulic oil transmission between the rotary joint 42 and the decoking device is realized, the hydraulic pipe arrangement between the rotary joint 42 and the decoking device 3 is optimized, the winding of the hydraulic pipe during rotation is reduced, and the stability of the hydraulic oil transmission is improved.

[0045] (2) When the second support 12 drives the decoking device 3 to rotate around the pivot axis, since the pivot axis of the rotary joint 42 is coaxial with the pivot axis, the stability of the connection state of the rotary joint 42 and the decoking device 3 can be improved. This makes the hydraulic oil flow path more stable, avoids the pipe twisting and bending caused by the axis misalignment, thereby preventing the hydraulic oil leakage and ensuring the normal operation of the hydraulic system, and providing continuous and stable power support for the decoking device 3.

[0046] Embodiment Two

[0047] As shown in Figure 1 Further, the furnace decoking device 100 further comprises a slewing device 5 for driving the second support 12 and the rotary joint 42 to synchronously rotate. Here, the synchronous rotation means that the second support 12 and the rotary joint 42 rotate at the same angular velocity. Therefore, the synchronous rotation of the second support 12 and the rotary joint 42 can further reduce the winding of the hydraulic pipe during rotation, and reduce the possibility of excessive bending, twisting or even rupture of the hydraulic pipe caused by the difference between the two.

[0048] AsFigure 1 As shown, further, the rotating device 5 comprises a rotating power source 51 and a rotating transmission mechanism 52; the rotating power source 51 is arranged on the first support 11; the rotating transmission mechanism 52 comprises a first connecting assembly 521 and a second connecting assembly 522; the rotating power source 51 and the rotary joint 42 are drivingly connected through the first connecting assembly 521; the rotating power source 51 and the second support 12 are drivingly connected through the second connecting assembly 522. The rotating power source 51 is installed on the first support 11, which is the power source of the whole rotating device 5; the rotating power source 51 drives the second support 12 and the rotary joint 42 to rotate synchronously through the rotating transmission mechanism 52, which can further reduce the winding of the hydraulic pipe during rotation and reduce the possibility of excessive bending, twisting or even rupture of the hydraulic pipe caused by the difference in rotation.

[0049] Further, the second connecting assembly 522 comprises a transmission shaft 5221 and a bearing 5222; the transmission shaft 5221 is rotatably connected to the first support 11 through the bearing 5222; the transmission shaft 5221 is axially aligned with the pivot axis, and a part of the transmission shaft 5221 extends out of the first support 11 to connect the second support 12; the transmission shaft 5221 has a hydraulic pipe accommodating cavity (not shown in the figure) extending through in the axial direction. That is, the transmission shaft 5221 is configured as a cylindrical structure that is sleeved outside the hydraulic pipe, and the hydraulic pipe between the rotary joint 42 and the decoking device 3 can be accommodated in the hydraulic pipe accommodating cavity, so that the transmission shaft 5221 can serve as a protective shell for the hydraulic pipe, reducing damage to the hydraulic pipe.

[0050] Here, the transmission shaft 5221 being axially aligned with the pivot axis means that the center line of the transmission shaft 5221 is collinear with the pivot axis.

[0051] In some specific examples, the hydraulic pipe accommodating cavity of the transmission shaft 5221 can also accommodate an electrical cable connector (not shown in the figure) electrically connected to the decoking device 3.

[0052] Further, the first connecting assembly 521 comprises two long plate members, each of which is connected between the rotating reducer and the rotary joint 42, and the two long plate members are arranged at intervals around the pivot axis, improving the stability of transmission.

[0053] Embodiment three

[0054] The hearth decoking device 100 further comprises a hydraulic control mechanism 4, which comprises a first valve group 41, a second valve group (not shown in the figure) and a rotary joint 42; the first valve group 41 is installed on the first support 11, and the first valve group 41 is connected to the support fixing mechanism 2 and the rotating device 5 to control the movement of the support fixing mechanism 2 and the rotating device 5; the second valve group is installed on the second support 12, and the second valve group is connected to the decoking device 3 to control the movement of the decoking device 3; the rotary joint 42 is used to connect the first valve group 41 and the second valve group.

[0055] In combination with the above embodiment, the hearth coking removing device 100 is driven by hydraulic pressure. The hydraulic station can be arranged near the manhole door of the boiler. The hydraulic station is connected to the first valve group 41 through the oil supply pipeline. The hydraulic oil is delivered to the support fixing mechanism 2 and the rotating device 5 under the control of the first valve group 41, so as to realize the control of the first valve group 41 on the activities of the support fixing mechanism and the rotating device 5. The first valve group 41 is connected to the second valve group through the rotary joint 42. The hydraulic oil is delivered to the coking removing device 3 under the control of the second valve group after entering the rotary joint 42 from the first valve group 41, so as to realize the control of the second valve group on the activities of the coking removing device 3.

[0056] Specifically, the hydraulic control mechanism 4 includes the hydraulic pipe for transmitting the hydraulic oil and the control cable for transmitting the control signal. The hydraulic station is arranged near the manhole door of the boiler. The hydraulic pipe and the power supply line enter the hearth through the manhole door and are connected to the hearth coking removing device 100. Then, the power supply line is divided into two paths to enter two receivers. The hydraulic pipe and the control cable of one receiver enter the first valve group 41. The first valve group 41 is composed of a plurality of electromagnetic reversing valves, which control the moving direction of the support fixing mechanism 2 and the rotating device 5, respectively. The hydraulic pipe and the control cable of the other receiver enter the rotary joint 42 after coming out of the first valve group 41, and then enter the second valve group. The second valve group and the coking removing device 3 thereof can rotate relative to the first valve group 41. The second valve group is composed of a plurality of electromagnetic reversing valves, which control the moving direction of the coking removing device 3.

[0057] The above electromagnetic reversing valve has a signal receiver, which can receive the control signal to control the flow direction of the hydraulic oil at the valve outlet of the electromagnetic reversing valve, so as to control the moving direction of the actuator.

[0058] Embodiment Four

[0059] As shown in Figure 1 Further, the pivotal axis is parallel to the up-down direction. The first support 11 includes a top plate 110, a first mounting plate 111, a second mounting plate 112 and a bottom plate 113, which are arranged at intervals along the up-down direction. The top plate 110 is provided with the suspension lifting lug 6. The first mounting plate 111 is provided with a first valve group mounting portion and a rotary joint connecting portion. The second mounting plate 112 is provided with a rotating device fixing structure. The bottom plate 113 is provided with a bearing mounting notch, which penetrates through along the direction of the pivotal axis. The second support 12 is rotationally connected below the bottom plate 113.

[0060] In combination with the above embodiments, the suspension lug 6 is connected with the hoist wire rope, and the wire rope provides upward pulling force, which balances with the gravity of the whole device, so as to fix the whole device at a certain height. The support fixing structure can fix the whole device in the horizontal direction, and provide more stable support. The first valve group 41 is installed on the first valve group 41 installation part of the first mounting plate 111, the rotary joint 42 is installed on the rotary joint 42 connection part of the first mounting plate 111, the first valve group 41 is located on the upper side of the first mounting plate 111, and the rotary joint 42 is located on the lower side of the first mounting plate 111. The second mounting plate 112 is used to install the rotary power source 51 and the rotary reducer of the rotary device 5, the first connecting assembly 521 is located between the first mounting plate 111 and the second mounting plate 112, the bearing 5222 of the second connecting assembly 522 is installed on the bearing 5222 installation stop of the bottom plate 113, the bearing 5222 is arranged between the transmission shaft 5221 of the second connecting assembly 522 and the bottom plate 113, and the transmission shaft 5221 of the second connecting assembly 522 is connected with the second support 12 located on the lower side of the bottom plate 113 through the bearing 5222 installation stop. The top plate 110 is also provided with an oil-electricity connection interface (not shown in the figure).

[0061] As shown in Figure 1 Further, the support fixing mechanism 2 includes support arms 21 and a first actuating mechanism 23. The support arms 21 include at least two which are arranged symmetrically with respect to the center of the pivot axis, and one end of each support arm 21 is rotationally connected to the bottom plate 113. The hydraulic control mechanism first valve group 41 is connected to the first actuating mechanism 23, the first valve group 41 controls the operation of the first actuating mechanism 23, and the first actuating mechanism 23 can drive the support arms 21 to move. The first actuating mechanism 23 drives the other end of the support arm 21 away from the pivot axis to abut against the inner wall of the hearth. That is to say, after the hoist wire rope suspends the hearth cleaning device through the connection of the suspension lug 6, the first actuating mechanism 23 drives the other end of the support arm 21 away from the pivot axis, so that the other end of the support arm 21 abuts against the inner wall of the hearth. Since the support arms 21 have at least two which are arranged symmetrically with respect to the center of the pivot axis, at least two support arms 21 abut against different positions of the inner wall of the hearth, so as to realize the positioning and fixing of the whole hearth decoking device 100 in the horizontal direction, and further improve the stability of the hearth decoking device 100.

[0062] As shown in Figure 1 Optionally, the support arms 21 include two which are spaced apart by 180° in the circumferential direction of the pivot axis.

[0063] Optionally, the support arms 21 include three which are spaced apart by 120° in the circumferential direction of the pivot axis.

[0064] As shown in Figure 1 and Figure 2As shown, the first actuating mechanism 23 comprises first hydraulic rods 231, which are arranged one-to-one with the support arms 21, and are arranged between the support arms 21 and the second mounting plate 112; the first hydraulic rods 231 drive the other ends of the support arms 21 away from the pivot axis.

[0065] As shown in Figure 1 and Figure 2 Further, the support fixing mechanism 2 further comprises extension arms 22, which are telescopically mounted on the support arms 21; the first actuating mechanism 23 further comprises second hydraulic rods 232, which are arranged between the support arms 21 and the extension arms 22; the first valve group 41 is used to control the telescopic movement of the extension arms 22 driven by the second hydraulic rods 232. By arranging the extension arms 22, the hearth of different sizes can be adapted.

[0066] As shown in Figure 1 and Figure 2 In one specific example, the electromagnetic reversing valves of the first valve group 41 are arranged one-to-one with the first hydraulic rods 231, and are arranged one-to-one with the second hydraulic rods 232. For example, when the number of support arms 21 is two and each support arm 21 is provided with an extension arm 22, the first valve group 41 comprises five electromagnetic reversing valves, two of which are arranged one-to-one with the two first hydraulic rods 231, two of which are arranged one-to-one with the second hydraulic rod 232, and one of which is arranged one-to-one with the rotating device 5. One end of the first hydraulic rod 231 is hinged to the second mounting plate 112, and the other end of the first hydraulic rod 231 is hinged to the support arm 21. One end of the second hydraulic rod 232 is hinged to the support arm 21, and the other end of the second hydraulic rod 232 is hinged to the extension arm 22. The hinge here can be a pin shaft connection.

[0067] Embodiment five

[0068] As shown in Figure 1 Further, the second support 12 comprises a valve group mounting box 121 and a rotating connection part 122 connected thereto, the rotating connection part 122 being used to connect the second connecting assembly 522; the valve group mounting box 121 is used to mount the second valve group, and the outer wall of the valve group mounting box 121 is provided with a coke removing device mounting structure 1211.

[0069] As shown in Figure 1As shown, specifically, the rotating connecting part 122 is fixedly connected with the transmission shaft 5221; the second support 12 further comprises a connecting vertical rod 123 extending in the vertical direction, one end of the connecting vertical rod 123 is fixedly connected with the lower side of the rotating connecting part 122, and the other end of the connecting vertical rod 123 is fixedly connected with the outer side wall of the valve group mounting box 121. By arranging the connecting vertical rod, the coke removing device 3 is spaced apart from the first support 11 in the vertical direction, thereby facilitating reducing the probability of mutual interference between the coke removing device 3 and the first support 11.

[0070] In a specific example, the rotating connecting part 122 and the connecting vertical rod 123 are integrally formed. As shown in Figure 1 As shown, further, the coke removing device 3 comprises a breaking hammer 32, a connecting arm 31 and a second actuating mechanism 33; one end of the connecting arm 31 is mounted on the coke removing device mounting structure 1211, and the other end of the connecting arm 31 is used for drivingly connecting the breaking hammer 32; the second valve group controls the second actuating mechanism 33 to drive the connecting arm 31 to move, so that the connecting arm 31 adjusts the knocking position of the breaking hammer 32.

[0071] As shown in Figure 1 Specifically, the connecting arm 31 comprises a first branch arm 311, a second branch arm 312 and a third branch arm 313, one end of the first branch arm 311 is hingedly connected with the coke removing device mounting structure 1211, the other end of the first branch arm 311 is hingedly connected with one end of the second branch arm 312, the third branch arm 313 is hingedly connected with the other end of the second branch arm 312, and the third branch arm 313 is used for mounting the breaking hammer 32; the second actuating mechanism 33 comprises a third hydraulic rod 333, a fourth hydraulic rod 334 and a fifth hydraulic rod 335; the third hydraulic rod 333 is arranged between the coke removing device mounting structure 1211 and the first branch arm 311, and is used for driving the first branch arm 311 to rotate relative to the valve group mounting box 121; the fourth hydraulic rod 334 is arranged between the first branch arm 311 and the second branch arm 312, and is used for driving the second branch arm 312 to rotate relative to the first branch arm 311; the fifth hydraulic rod 335 is arranged between the second branch arm 312 and the third branch arm 313, and is used for driving the third branch arm 313 to rotate relative to the second branch arm 312; the second valve group is further connected with the breaking hammer 32 to control the movement of the breaking hammer 32. The hingedly connected herein can adopt pin shaft connection.

[0072] The hingedly connected part of the connecting arm 31 forms a rotatable joint, and each branch arm of the connecting arm 31 rotates around the joint point with the hydraulic rod extending and retracting, thereby constantly changing the direction and position of the breaking hammer 32.

[0073] As shown in Figure 1 and Figure 2As shown, the electromagnetic reversing valves of the second valve group are arranged one-to-one with the third hydraulic rod 333, the fourth hydraulic rod 334, the fifth hydraulic rod 335 and the breaking hammer 32, that is, the second valve group includes four electromagnetic reversing valves, one electromagnetic reversing valve is arranged corresponding to one third hydraulic rod 333, one electromagnetic reversing valve is arranged corresponding to the fourth hydraulic rod 334, one electromagnetic reversing valve is arranged corresponding to the fifth hydraulic rod 335, and one electromagnetic reversing valve is arranged corresponding to the breaking hammer 32.

[0074] Optionally, the second valve group includes a proportional reversing valve for controlling the movement state of the breaking hammer 32; when the coke layer is thin, the advancing speed of the breaking hammer 32 is slowed down, thereby protecting the heating surface of the boiler, and when the coke layer is thick, the advancing speed of the breaking hammer 32 is increased, thereby improving the cleaning efficiency.

[0075] The bottom wall of the valve group mounting box 121 and the bottom of the connecting arm 31 are provided with a roller 124, thereby facilitating the carrying of the whole hearth coking device.

[0076] When the hearth is cleaned, the suspension lifting lug is connected with the wire rope of the winch, and the wire rope provides upward pulling force and balances the gravity of the whole device. The hearth coking device is provided with a signal receiver, remote control of the first and second actuators can be realized, the working environment of workers is improved, and the risk of injury is avoided. After the position of the coke block is determined, the connecting arm below is rotated to make the breaking hammer close to the coke block. The two supporting arms are unfolded and supported on different parts of the furnace wall, the horizontal force balance is ensured, and the angle of the connecting arm is adjusted to make the breaking hammer perform the coke block cleaning task.

[0077] Other configurations and operations of the hearth coking device 100 according to the embodiments of the present application are known to those skilled in the art, and will not be described in detail here. In the description of the present application, "a first feature", "a second feature" can include one or more features. Among them, the up-down direction, the left-right direction and the front-rear direction are based on the up-down direction, the left-right direction and the front-rear direction shown in the figure.

[0078] In the description of the present application, unless otherwise explicitly specified and limited, the "first feature" is "above" or "below" the "second feature", which can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "first feature" is "above", "above" and "above" the "second feature", which includes that the first feature is directly above and obliquely above the second feature, or only means that the horizontal height of the first feature is higher than that of the second feature.

[0079] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0080] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A hearth decoking device, characterized by, The installation frame (1) comprises a first support (11) and a second support (12), the second support (12) is pivotally connected to the first support (11); The support fixing mechanism (2) is arranged on the first support (11); The coke cleaning device (3) is arranged on the second support (12); The rotary joint (42) is pivotally installed on the first support (11) and used for connecting the coke cleaning device (3); The pivot axis of the second support (12) is coaxially arranged with the pivot axis of the rotary joint (42). Further comprising a slewing device (5), the slewing device (5) is used for driving the second support (12) and the rotary joint (42) to synchronously rotate.

2. The hearth decoking device of claim 1, wherein The slewing device (5) comprises a slewing power source (51) and a slewing transmission mechanism (52); 3. The hearth decoking device of claim 2, wherein The slewing power source (51) is arranged on the first support (11); The slewing transmission mechanism (52) comprises a first connecting assembly (521) and a second connecting assembly (522); The slewing power source (51) and the rotary joint (42) are drivingly connected through the first connecting assembly (521); The slewing power source (51) and the second support (12) are drivingly connected through the second connecting assembly (522). The second connecting assembly (522) comprises a transmission shaft (5221) and a bearing (5222), the transmission shaft (5221) is rotatably connected to the first support (11) through the bearing (5222); 4. The hearth decoking device of claim 3, wherein The transmission shaft (5221) is axially aligned with the pivot axis, and a part of the transmission shaft (5221) extends out of the first support (11) to connect the second support (12); The transmission shaft (5221) has a hydraulic pipe accommodating cavity penetrating along the axial direction. Further comprising a hydraulic control mechanism (4), the hydraulic control mechanism (4) comprises a first valve group (41), a second valve group and the rotary joint (42); 5. The hearth decoking device of claim 3, wherein The first valve group (41) is installed on the first support (11), the first valve group (41) is connected with the support fixing mechanism (2) and the slewing device (5) to control the support fixing mechanism (2) and the slewing device (5) to move; The second valve group is installed on the second support (12), and the second valve group is connected with the coke cleaning device (3) to control the coke cleaning device (3) to move; The rotary joint (42) is used for connecting the first valve group (41) and the second valve group. The pivot axis is parallel to the up-down direction; 6. The hearth decoking device of claim 5, wherein The first support (11) comprises a top plate (110), a first mounting plate (111), a second mounting plate (112) and a bottom plate (113) arranged in the up-down direction; The top plate (110) is provided with a hanging lug (6); The first mounting plate (111) is provided with a first valve group mounting portion and a rotary joint connecting portion; The second mounting plate (112) is provided with a slewing device fixing structure; The bottom plate (113) is provided with a bearing mounting notch penetrating along the direction of the pivot axis; ​ The second support (12) is rotationally connected below the bottom plate (113).

7. A hearth decoking device according to claim 6, characterized in that The support fixing mechanism (2) comprises support arms (21) and a first actuating mechanism (23), the support arms (21) are centrally symmetrically arranged relative to the pivot axis, one end of each support arm (21) is rotationally connected to the bottom plate (113); The first valve group (41) is connected to the first actuating mechanism (23) to control the first actuating mechanism (23) to drive the other end of the support arm (21) away from the pivot axis to abut against the inner wall of the hearth.

8. The hearth decoking device of claim 6, wherein The second support (12) comprises a valve group mounting box (121) and a rotationally connected part (122), the rotationally connected part (122) is used to connect the second connecting assembly (522); The valve group mounting box (121) is used to mount a second valve group, and an outer wall of the valve group mounting box (121) is provided with a coke removing device mounting structure (1211).

9. The hearth decoking device of claim 8, wherein The coke removing device (3) comprises a breaking hammer (32); The second valve group is used to control the breaking hammer (32) to knock the coke block of the inner wall of the hearth.

10. The hearth decoking device of claim 9, wherein The coke removing device (3) further comprises a connecting arm (31) and a second actuating mechanism (33); One end of the connecting arm (31) is mounted on the coke removing device mounting structure (1211), and the other end of the connecting arm (31) is used to drivingly connect the breaking hammer (32); The second valve group controls the second actuating mechanism (33) to drive the connecting arm (31) to move, so that the connecting arm (31) adjusts the knocking position of the breaking hammer (32).

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