Coking cleaning tool

Abstract

The utility model discloses a coke cleaning tool, which comprises a connecting shaft, a first rotating shaft and a second rotating shaft, the scraper is rotationally connected with one end of the connecting shaft in the first direction, and the scraper can rotate with the second direction as the axial direction; the driving part is connected with the other end of the connecting shaft in the first direction; the coking cleaning tool comprises a first state and a second state, and the driving part is used for driving the connecting shaft to rotate by a set angle in the circumferential direction, so that the coking cleaning tool is switched between the first state and the second state; in the first state, the extending direction of the scraper is perpendicular to the extending direction of the connecting shaft; and in the second state, the extending direction of the scraper is consistent with that of the connecting shaft. According to the coke cleaning tool, a rope or connecting rod driving mechanism is omitted, and the coke cleaning tool is automatically switched between the first state and the second state by rotating the connecting shaft under the gravity action of the scraper.

Description

Technical Field

[0001] The utility model relates to the field of kiln burners, in particular to a coking cleaning tool. Background Art

[0002] During the use of kiln burners, coke from the fuel or materials often adheres to the surface of the burner head during the calcination process. This coke can clog the burner's air outlet, causing burner performance degradation and even leading to safety accidents.

[0003] Current kiln burner coke cleaners typically feature locking mechanisms, such as ropes or connecting rods, to drive and lock the cutter head. This makes the coke cleaner structure complex and heavy. Furthermore, the use of ropes and connecting rods has drawbacks: over time, the ropes or connecting rods can loosen or stretch due to metal fatigue or thermal expansion, weakening the locking effect. Utility Model Content

[0004] The present invention aims to solve the technical problem of the complex structure of existing coke cleaners. The present invention provides a coke cleaning tool that eliminates the need for a rope or connecting rod drive mechanism. By rotating a connecting shaft and under the action of gravity of a scraper, the coke cleaning tool automatically switches between a first state and a second state.

[0005] In order to solve the above technical problems, the embodiment of the present utility model discloses a coke cleaning tool, which includes:

[0006] A connecting shaft extending along a first direction;

[0007] a scraper, wherein the scraper is rotatably connected to one end of the connecting shaft along the first direction, and the scraper is rotatable with a second direction as an axial direction, and the second direction is perpendicular to the first direction;

[0008] a driving portion connected to the other end of the connecting shaft along the first direction;

[0009] The coke cleaning tool includes a first state and a second state, and the driving part is used to drive the connecting shaft to rotate circumferentially at a set angle so that the coke cleaning tool switches between the first state and the second state;

[0010] In the first state, the extension direction of the scraper is perpendicular to the extension direction of the connecting shaft;

[0011] In the second state, the extending direction of the scraper is consistent with the extending direction of the connecting shaft.

[0012] The coke cleaning tool is used to clean coke deposits from the burner surface. The burner is hollow. When not cleaning coke deposits, the tool is in a second position, with the scraper extending in the same direction as the connecting shaft and the scraper located inside the burner.

[0013] When coke cleaning work is required, the operator first drives the connecting shaft to move relative to the burner in a first direction through the driving unit, causing the scraper to extend from the inside of the burner to one end of the burner. Then, the operator drives the connecting shaft to rotate circumferentially to a set angle, such as 180°, through the driving unit, and the coke cleaning tool will switch from the second state to the first state. Under the action of the gravity of the scraper, the extension direction of the scraper is changed from being consistent with the extension direction of the connecting shaft to being perpendicular to the extension direction of the connecting shaft. Then, the operator drives the connecting shaft to move relative to the burner in the first direction through the driving unit. When the scraper is in contact with the surface of the burner, the connecting shaft can no longer move, and the driving unit can be stopped, and the operator can then perform subsequent coke cleaning work.

[0014] If the coke cleaning tool needs to be switched from the first state to the second state, the operator first drives the connecting shaft through the driving unit to move a certain distance, such as 500 mm, in the first direction away from the air outlet surface of the burner, to reserve space for the extension direction of the scraper to be changed. The driving unit drives the connecting shaft to rotate circumferentially to a set angle, such as 180°, and the coke cleaning tool will switch from the first state to the second state. Under the action of the gravity of the scraper, the extension direction of the scraper is converted from perpendicular to the extension direction of the connecting shaft to consistent with the extension direction of the connecting shaft. Subsequently, the operator drives the connecting shaft through the driving unit to move relative to the burner in the first direction, thereby causing the scraper to return from one end of the burner to the inside of the burner.

[0015] Compared with the existing technology, this technical solution eliminates the rope or connecting rod driving mechanism, has a simple structure, and can automatically switch the coke cleaning tool between the first state and the second state by rotating and moving the connecting shaft through the driving part and under the action of the gravity of the scraper.

[0016] According to another specific embodiment of the present utility model, one end of the connecting shaft includes a connecting tube, one end of the connecting tube is rotatably connected to the scraper, one end of the connecting tube includes an opening and a short groove and a long groove arranged radially opposite to each other, the short groove and the long groove respectively extending inward from the periphery of the opening, one end of the connecting tube also includes a limiting portion and a rotating shaft, the limiting portion and the short groove are located on the same side;

[0017] In the first state, along a third direction, the tail of the scraper passes through the short slot and the long slot, and both ends of the tail extend out of the short slot and the long slot respectively, and the third direction is perpendicular to the first direction;

[0018] In the second state, the tail is completely located in the connecting tube, the tail abuts against the limiting portion in the third direction, and the tail is respectively opposite to the short slot and the long slot in the third direction, and the tail is rotatably connected to the rotating shaft.

[0019] With the above technical solution, by providing a stopper, the coke cleaning tool is in the second state, when the scraper blade extends in the same direction as the connecting shaft, and the tail of the scraper abuts the stopper. Due to the weight of the scraper, the scraper blade tends to shift from being in the same direction as the connecting shaft to being perpendicular to the connecting shaft. However, the stopper abuts the tail of the scraper, preventing this tendency and allowing the scraper blade to remain in the same direction as the connecting shaft.

[0020] According to another specific embodiment of the present invention, the connecting shaft further includes a connecting rod, one end of the connecting rod is connected to the driving part, and the other end of the connecting rod is connected to the other end of the connecting pipe.

[0021] According to another specific embodiment of the present invention, along the first direction, the short slot includes a first end and a second end, the second end is located at the opening, and the distance from the rotating shaft to the first end is a first spacing;

[0022] Along the width direction of the scraper, the tail portion includes a first side and a second side. In the first state, the first side is close to the first end, and the second side is close to the second end. Along the width direction of the scraper, the distance from the rotating shaft to the first side is a second spacing, and the first spacing is greater than the second spacing.

[0023] With the above technical solution, if the first spacing is smaller than the second spacing, when the coke cleaning tool switches from the second state to the first state, the extension direction of the scraper blade will no longer be perpendicular to the extension direction of the connecting shaft. In other words, the extension direction of the scraper blade will intersect with the extension direction of the connecting shaft at an obtuse angle. Consequently, the scraper blade will not be able to contact the external surface of the burner, resulting in coke cleaning failure.

[0024] According to another specific embodiment of the present invention, the scraper includes a first surface and a second surface, the first surface is located at the tail portion, and the second surface is located at the front portion of the scraper;

[0025] In the first state, the first surface is used to fit with the first surface of the external burner, and the second surface is used to fit with the air outlet surface of the external burner;

[0026] In the second state, the first surface abuts against the limiting portion.

[0027] By adopting the above technical solution, the coke deposits of the burner are mainly attached to the air outlet surface. When the coke cleaning tool is in the first state, the second side of the scraper is in contact with the air outlet surface of the external burner. The operator drives the connecting shaft to rotate axially in the first direction through the driving part, and the scraper is also rotated axially in the first direction. At this time, the second side of the scraper can scrape off the coke deposits blocking the air outlet surface, thereby realizing the coke cleaning function.

[0028] At the same time, a small amount of coke will also adhere to the first surface of the burner. The first surface of the scraper is in contact with the first surface of the burner outside. The operator drives the connecting shaft to rotate axially in the first direction through the driving part, and the scraper also rotates axially in the first direction. The first surface of the scraper can scrape off the coke that blocks the first surface, thereby realizing the coke cleaning function.

[0029] In addition, the scraper is respectively fitted with the first surface and the air outlet surface of the burner through the first surface and the second surface, that is, there are two force-bearing surfaces between the scraper and the burner, and with the help of these two force-bearing surfaces, the scraper and the burner can be fitted more closely.

[0030] According to another specific embodiment of the present invention, the connecting pipe includes a pipe body, the tail portion includes a first through hole, the first through hole passes through the tail portion, the rotating shaft passes through the first through hole, and both ends of the rotating shaft are respectively connected to the pipe body.

[0031] By adopting the above technical solution, the tail of the scraper can be rotatably connected to one end of the connecting pipe.

[0032] According to another specific embodiment of the present invention, the coke cleaning tool includes a flange portion, the flange portion includes a sealing flange, the sealing flange is located between the scraper and the driving portion, the sealing flange is slidingly connected to the connecting shaft, and one side of the sealing flange is used to fit with the second surface of the external burner.

[0033] With the above technical solution, since the burner is a hollow structure, there will be a gap between the interior of the burner and the connecting shaft. By fitting the sealing flange with the second surface of the burner outside, the heat inside the burner can be effectively prevented from leaking out from the gap between the interior of the burner and the connecting shaft.

[0034] According to another specific embodiment of the present invention, the flange portion includes a first flange and a second flange, the first flange is slidably connected to the connecting shaft, and in the first state, the first flange is in contact with the other surface of the sealing flange;

[0035] The second flange is fixedly connected to the connecting shaft, and is connected to the first flange via long bolts. The second flange is spaced apart from the first flange along the first direction, and the first flange can move relative to the second flange along the first direction.

[0036] With the above technical solution, when the coke cleaning tool needs to switch from the second state to the first state, remove the nut that fixes the second flange to the first flange. Fit the first flange with the other side of the sealing flange to achieve the positioning of the first flange. Then the operator drives the connecting shaft to move relative to the external burner in the first direction through the driving unit. Since the second flange is fixedly connected to the connecting shaft, the first flange at this time is equivalent to moving relative to the second flange in the first direction at the same time. When the connecting shaft moves to the desired position, for example, the position where the second side of the scraper fits with the air outlet surface of the external burner, the second flange is fixedly connected to the first flange by the nut to achieve the fixation of the connecting shaft, and at the same time, the locking fixation of the scraper is achieved.

[0037] According to another specific embodiment of the present invention, the scraper includes a first recessed portion, which is provided between the first surface and the second surface, and the first recessed portion is used to be spaced apart from the first protrusion of the external burner.

[0038] When adopting the above technical solution, if the scraper is not provided with a first concave portion corresponding to the first convex portion of the external burner, then when the scraper is in contact with the surface of the burner, it will first contact the first convex portion, and then the first and second surfaces of the scraper will not be able to be in contact with the first surface and air outlet surface of the burner, and the coke cannot be removed.

[0039] According to another specific embodiment of the present invention, the connecting pipe is a heat-resistant pipe.

[0040] With the above technical solution, during the process of locking the scraper or decoking, the connecting pipe will be exposed to heat radiation from the burner. The use of a heat-resistant pipe for the connecting pipe can prevent thermal deformation of the structure caused by heat radiation.

[0041] According to another specific embodiment of the present invention, the driving part is a hand wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 Schematic diagram showing the connection between the coking cleaning tool and the burner in the embodiment of the utility model Figure 1 .

[0043] Figure 2 Schematic diagram showing the connection between the coking cleaning tool and the burner in the embodiment of the utility model Figure 2 .

[0044] Figure 3A schematic diagram showing a first state of a coking cleaning tool according to an embodiment of the present invention.

[0045] Figure 4 A schematic diagram showing the second state of the coke cleaning tool according to an embodiment of the present invention.

[0046] Figure 5 Schematic diagram showing the state of the coking cleaning tool according to the embodiment of the utility model Figure 1 .

[0047] Figure 6 Schematic diagram showing the state of the coking cleaning tool according to the embodiment of the utility model Figure 2 .

[0048] Figure 7 Schematic diagram showing the state of the coking cleaning tool according to the embodiment of the utility model Figure 3 .

[0049] Figure 8 Schematic diagram showing the state of the coking cleaning tool according to the embodiment of the utility model Figure 4 .

[0050] Figure 9A A three-dimensional view showing the connection between the scraper and the connecting pipe in the first state of an embodiment of the present invention is shown.

[0051] Figure 9B A left side view showing the connection between the scraper and the connecting pipe in the first state of an embodiment of the present invention is shown.

[0052] Figure 10 A three-dimensional view showing the connection between the scraper and the connecting pipe in the second state of the embodiment of the utility model is shown.

[0053] Figure 11 A three-dimensional view of a connecting pipe according to an embodiment of the present invention is shown.

[0054] Figure 12 A three-dimensional view of a scraper according to an embodiment of the present invention is shown.

[0055] Description of Reference Numerals

[0056] Coke cleaning tool 10;

[0057] Connecting shaft 11;

[0058] Connecting tube 111; opening 1111; short slot 1112; first end 11121; second end 11122; long slot 1113; stopper 1114; rotating shaft 1115; tube body 1116;

[0059] Connecting rod 112;

[0060] scraper 12;

[0061] tail portion 121; first side 1211; second side 1212; first through hole 1213; first surface 122; second surface 123; front portion 124; first recess 125;

[0062] Driving unit 13;

[0063] Flange portion 14; sealing flange 141; first flange 142; second flange 143;

[0064] Burner 20;

[0065] Front end 21; first surface 211; air outlet surface 212; first convex portion 213;

[0066] Backend 22. DETAILED DESCRIPTION

[0067] The following is an explanation of the implementation of the present invention by means of specific specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this utility model are limited to this implementation. On the contrary, the purpose of introducing the utility model in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present invention. In order to provide an in-depth understanding of the present invention, the following description will contain many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0068] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0069] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the utility model.

[0070] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0071] In the description of this embodiment, it should be noted that, unless otherwise specified or limited, the terms "disposed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this embodiment based on specific circumstances.

[0072] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0073] refer to Figure 1 and Figure 2 An embodiment of the present application provides a coke cleaning tool 10 , which is used to clean coke attached to the surface of a burner 20 .

[0074] First reference Figure 1 and Figure 2 The burner 20 is a hollow cylindrical structure. Along the first direction X, the burner 20 includes a front end 21 and a rear end 22. The front end 21 includes a first surface 211 and an air outlet surface 212. The coke is mainly attached to the air outlet surface 212, with a small amount attached to the first surface 211. The front end 21 also includes a first protrusion 213. The first surface 211, the first protrusion 213, and the air outlet surface 212 are arranged in sequence from the inside to the outside of the axis of the burner 20. The rear end 22 includes a second surface (not shown in the figure).

[0075] Next, how the coke cleaning tool 10 cleans coke attached to the surface of the burner 20 will be described in detail.

[0076] refer to Figure 3 and Figure 4 The coke cleaning tool 10 includes a connecting shaft 11, a scraper 12, and a drive unit 13. The connecting shaft 11 extends along a first direction X. The scraper 12 is rotatably connected to one end of the connecting shaft 11 along the first direction X. The scraper 12 can rotate along a second direction Y, which is perpendicular to the first direction X. The drive unit 13 is a handwheel and is connected to the other end of the connecting shaft 11 along the first direction X.

[0077] The coke cleaning tool 10 includes a first state and a second state. The driving unit 13 is used to drive the connecting shaft 11 to rotate along the circumferential direction R by a set angle so that the coke cleaning tool 10 switches between the first state and the second state. In the first state, the extension direction of the scraper 12 is perpendicular to the extension direction of the connecting shaft 11 (such as Figure 3 In the second state, the extension direction of the scraper 12 is consistent with the extension direction of the connecting shaft 11 (as shown). Figure 4 shown).

[0078] With the above technical solution, when the coke cleaning work is not being performed, the coke cleaning tool 10 is in the second state, the extension direction of the scraper 12 is consistent with the extension direction of the connecting shaft 11 , and the scraper 12 is located inside the burner 20 .

[0079] When the coke cleaning work is required, the operator first drives the connecting shaft 11 to move relative to the burner 20 along the first direction X through the driving part 13, and causes the scraper 12 to extend from the burner 20 to one end of the burner 20 (the scraper 12 is Figure 5 The solid line state is converted to the dotted line state). Then the operator drives the connecting shaft 11 to rotate along the circumferential direction R by a set angle, for example, 180 degrees (the scraper 12 is driven by the driving part 13). Figure 5 The middle dotted line state is converted to Figure 6 The coke cleaning tool 10 switches from the second state to the first state (the scraper 12 is Figure 6 The middle dotted line state is converted to Figure 6 Solid line state). Under the action of the weight of the scraper 12, the extension direction of the scraper 12 is changed from being consistent with the extension direction of the connecting shaft 11 to being perpendicular to the extension direction of the connecting shaft 11. Subsequently, the operator drives the connecting shaft 11 to move relative to the burner 20 along the first direction X through the driving unit 13. When the scraper 12 is in contact with the surface of the burner 20 (the scraper 12 is Figure 7 The middle dotted line state is converted to Figure 7 In the solid line state), the connecting shaft 11 can no longer move, so the driving unit 13 can be stopped and the operator can carry out the subsequent coking cleaning work.

[0080] If the coke cleaning tool 10 needs to be switched from the first state to the second state, the operator first drives the connecting shaft 11 through the driving unit 13 to move a distance, for example, 500 mm, away from the air outlet surface of the burner 20 in the first direction X (the scraper 12 is Figure 7 The solid line state is converted to Figure 7 The driving unit 13 drives the connecting shaft 11 to rotate along the circumferential direction R to set an angle, for example, 180 degrees (the scraper 12 is rotated by the driving unit 13). Figure 7 The middle dotted line state is converted to Figure 8 The coke cleaning tool 10 switches from the first state to the second state (the scraper 12 is Figure 8 The middle dotted line state is converted to Figure 8Under the action of the weight of the scraper 12, the extension direction of the scraper 12 is changed from perpendicular to the extension direction of the connecting shaft 11 to the extension direction of the connecting shaft 11. Subsequently, the operator drives the connecting shaft 11 to move relative to the burner 20 along the first direction X through the driving unit 13, and the scraper 12 is moved from the outside of the burner 20 to the inside of the burner 20 (the scraper 12 is moved from the outside of the burner 20 to the inside of the burner 20). Figure 5 The middle dotted line state is converted to Figure 5 solid line state).

[0081] Compared with the prior art, this technical solution eliminates the rope or connecting rod driving mechanism and has a simple structure. By rotating and moving the connecting shaft 11 through the driving part 13 and under the action of gravity of the scraper 12, the coke cleaning tool 10 can automatically switch between the first state and the second state.

[0082] It should be noted that the embodiment of the present application does not impose any specific restrictions on the type of the driving unit 13. For example, in other possible implementations, the driving unit 13 may be an electric motor, a cylinder, a motor, etc.

[0083] In some possible implementations, reference Figures 9A to 11 One end of the connecting shaft 11 includes a connecting tube 111, one end of which is rotatably connected to the scraper 12. The connecting tube 111 includes an opening 1111 and a short slot 1112 and a long slot 1113 radially opposed to each other. The short slot 1112 and the long slot 1113 extend inward from the periphery of the opening 1111. The connecting tube 111 also includes a stopper 1114 and a rotating shaft 1115. The stopper 1114 and the short slot 1112 are located on the same side.

[0084] In the first state, along the third direction Z, the tail portion 121 of the scraper 12 passes through the short slot 1112 and the long slot 1113, and both ends of the tail portion 121 extend out of the short slot 1112 and the long slot 1113, respectively. The third direction Z is perpendicular to the first direction X. In the second state, the tail portion 121 of the scraper 12 is completely located within the connecting tube 111, the tail portion 121 abuts against the limiting portion 1114 in the third direction Z, and the tail portion 121 is opposite to the short slot 1112 and the long slot 1113, respectively, in the third direction Z. The tail portion 121 is rotatably connected to the rotating shaft 1115.

[0085] By adopting the above technical solution and providing the limiting portion 1114, when the coke cleaning tool 10 is in the second state and the extension direction of the scraper 12 is consistent with the extension direction of the connecting shaft 11, the tail portion 121 of the scraper 12 abuts against the limiting portion 1114. Due to the gravity of the scraper 12, the extension direction of the scraper 12 at this time has a tendency to change from being consistent with the extension direction of the connecting shaft 11 to being perpendicular to the extension direction of the connecting shaft 11. However, the abutment of the limiting portion 1114 and the tail portion 121 of the scraper 12 prevents this tendency, so that the extension direction of the scraper 12 can remain consistent with the extension direction of the connecting shaft 11.

[0086] In some possible implementations, reference Figure 8 The connecting shaft 11 also includes a connecting rod 112 , which is a cylinder. One end of the connecting rod 112 is connected to the driving portion 13 , and the other end of the connecting rod 112 is connected to the other end of the connecting tube 111 .

[0087] In some possible implementations, reference Figures 8 to 9B Along the first direction X, the short slot 1112 includes a first end 11121 and a second end 11122. The second end 11122 is located at the opening 1111. The distance between the rotating shaft 1115 and the first end 11121 is a first spacing d1. Along the width direction of the scraper 12, the tail portion 121 includes a first side 1211 and a second side 1212. In the first state, the first side 1211 is close to the first end 11121, and the second side 1212 is close to the second end 11122. Along the width direction of the scraper 12, the distance between the rotating shaft 1115 and the first side 1211 is a second spacing d2, and the first spacing d1 is greater than the second spacing d2.

[0088] With the above technical solution, if the first distance d1 is smaller than the second distance d2, when the coke cleaning tool 10 switches from the second state to the first state, the extension direction of the scraper 12 will not be perpendicular to the extension direction of the connecting shaft 11. In other words, the extension direction of the scraper 12 will intersect with the extension direction of the connecting shaft 11 at an obtuse angle. As a result, the scraper 12 will not be able to adhere to the surface of the burner 20, resulting in coke cleaning failure.

[0089] In some possible implementations, reference Figure 12 The scraper 12 includes a first surface 122 and a second surface 123 , wherein the first surface 122 is located at the tail portion and the second surface 123 is located at the front portion 124 of the scraper 12 .

[0090] refer to Figure 7 and Figure 10 In the first state, the first surface 122 is adapted to abut against the first surface 211 of the external burner 20 , and the second surface 123 is adapted to abut against the air outlet surface 212 of the external burner 20 . In the second state, the first surface 122 abuts against the limiting portion 1114 .

[0091] By adopting the above technical solution, the coke of the burner 20 is mainly attached to the air outlet surface 212. When the coke cleaning tool is in the first state, the second surface 123 of the scraper 12 is in contact with the air outlet surface 212 of the external burner 20. The operator drives the connecting shaft 11 to rotate axially in the first direction X through the driving part 13, and the scraper 12 is also rotated axially in the first direction X. At this time, the second surface 123 of the scraper 12 can scrape off the coke blocking the air outlet surface 212, thereby realizing the coke cleaning function.

[0092] At the same time, a small amount of coke will also adhere to the first surface 211 of the burner 20. The first surface 122 of the scraper 12 is in contact with the first surface 211 of the burner 20. The operator drives the connecting shaft 11 to rotate axially in the first direction X through the driving part 13, and the scraper 12 is also rotated axially in the first direction X. The first surface 122 of the scraper 12 can scrape off the coke that blocks the first surface 211, thereby achieving the coke cleaning function.

[0093] In addition, the scraper 12 is respectively fitted with the first surface 211 and the air outlet surface 212 of the burner 20 through the first surface 122 and the second surface 123, that is, there are two force-bearing surfaces between the scraper 12 and the burner 20, and with the help of these two force-bearing surfaces, the scraper 12 and the burner 20 can be fitted more closely.

[0094] In some possible implementations, reference Figure 10 and Figure 12 The connecting tube 111 includes a tube body 1116, and the tail portion 121 includes a first through hole 1213. The first through hole 1213 passes through the tail portion 121, and the rotating shaft 1115 passes through the first through hole 1213, and both ends of the rotating shaft 1115 are respectively connected to the tube body 1116.

[0095] By adopting the above technical solution, the tail portion 121 of the scraper 12 can be rotatably connected to one end of the connecting tube 111 .

[0096] In some possible implementations, reference Figure 1 and Figure 2 The coke cleaning tool 10 includes a flange portion 14, which includes a sealing flange 141. The sealing flange 141 is located between the scraper 12 and the driving portion 13. The sealing flange 141 is slidingly connected to the connecting shaft 11, and one side of the sealing flange 141 is used to fit with the second surface of the external burner 20.

[0097] With the above technical solution, since the burner 20 is a hollow structure, there will be a gap between the interior of the burner 20 and the connecting shaft 11. By fitting the sealing flange 141 with the second surface of the burner 20 outside, the heat inside the burner 20 can be effectively prevented from leaking out from the gap between the interior of the burner 20 and the connecting shaft 11.

[0098] In some possible implementations, reference Figure 1 and Figure 2 The flange portion 14 includes a first flange 142 and a second flange 143 . The first flange 142 is slidably connected to the connecting shaft 11 . In the first state, the first flange 142 is in contact with the other side of the sealing flange 141 .

[0099] The second flange 143 is fixedly connected to the connecting shaft 11 and is connected to the first flange 142 by long bolts. Along the first direction X, the second flange 143 and the first flange 142 are spaced apart. The first flange 142 can move relative to the second flange 143 along the first direction X.

[0100] According to the above technical solution, when the coke cleaning tool 10 needs to be switched from the second state to the first state, the nut fixing the second flange 143 and the first flange 142 is removed. The first flange 142 is fitted with the other side of the sealing flange 141 to achieve the positioning of the first flange 142. Subsequently, the operator drives the connecting shaft 11 to move relative to the external burner 20 along the first direction X through the driving unit 13. Since the second flange 143 is fixedly connected to the connecting shaft 11, the first flange 142 at this time is equivalent to moving relative to the second flange 143 along the first direction X at the same time. When the connecting shaft 11 moves to the desired position, for example, the position where the second surface 123 of the scraper 12 fits the air outlet surface 212 of the external burner 20, the second flange 143 is fixedly connected to the first flange 142 by the nut, thereby fixing the connecting shaft 11 and locking the scraper 12.

[0101] In some possible implementations, reference Figure 7 The scraper 12 includes a first recess 125 , which is disposed between the first surface 122 and the second surface 123 . The first recess 125 is configured to be spaced apart from the first protrusion 213 of the burner 20 outside.

[0102] When adopting the above technical solution, if the first recess 125 corresponding to the first protrusion 213 of the external burner 20 is not provided on the scraper 12, then when the scraper 12 is in contact with the surface of the burner 20, it will first contact the first protrusion 213, and then the first surface 122 and the second surface 123 of the scraper 12 will not be able to be in contact with the first surface and the air outlet surface 212 of the burner 20, and the coke cannot be removed.

[0103] In some possible implementations, the connecting pipe 111 is a heat-resistant pipe.

[0104] With the above technical solution, during the locking process of the scraper 12 or the decoking process, the connecting pipe 111 will be subjected to heat radiation from the burner 20. The use of a heat-resistant pipe for the connecting pipe 111 can prevent structural thermal deformation caused by heat radiation.

[0105] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above description is provided to further illustrate the present invention in conjunction with specific embodiments, and that the present invention should not be construed as being limited to these descriptions. Those skilled in the art may make various changes in form and detail, including simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A coking cleaning tool, characterized in that: The coking cleaning tool comprises: A connecting shaft extending along a first direction; a scraper, wherein the scraper is rotatably connected to one end of the connecting shaft along the first direction, and the scraper is rotatable with a second direction as an axial direction, and the second direction is perpendicular to the first direction; a driving portion connected to the other end of the connecting shaft along the first direction; The coke cleaning tool includes a first state and a second state, and the driving part is used to drive the connecting shaft to rotate circumferentially at a set angle so that the coke cleaning tool switches between the first state and the second state; In the first state, the extension direction of the scraper is perpendicular to the extension direction of the connecting shaft; In the second state, the extending direction of the scraper is consistent with the extending direction of the connecting shaft.

2. The coke cleaning tool according to claim 1, wherein: One end of the connecting shaft includes a connecting tube, one end of the connecting tube is rotatably connected to the scraper, one end of the connecting tube includes an opening and a short groove and a long groove arranged in opposite directions along the radial direction, the short groove and the long groove respectively extend inward from the periphery of the opening, and one end of the connecting tube also includes a limiting portion and a rotating shaft, the limiting portion and the short groove are located on the same side; In the first state, along a third direction, the tail of the scraper passes through the short slot and the long slot, and both ends of the tail extend out of the short slot and the long slot respectively, and the third direction is perpendicular to the first direction; In the second state, the tail is completely located in the connecting tube, the tail abuts against the limiting portion in the third direction, and the tail is respectively opposite to the short slot and the long slot in the third direction, and the tail is rotatably connected to the rotating shaft.

3. The coke cleaning tool according to claim 2, characterized in that: The connecting shaft further includes a connecting rod, one end of which is connected to the driving portion, and the other end of which is connected to the other end of the connecting pipe.

4. The coke cleaning tool according to claim 2, wherein: Along the first direction, the short slot includes a first end and a second end, the second end is located at the opening, and the distance from the rotating shaft to the first end is a first spacing; Along the width direction of the scraper, the tail portion includes a first side and a second side. In the first state, the first side is close to the first end, and the second side is close to the second end. Along the width direction of the scraper, the distance from the rotating shaft to the first side is a second spacing, and the first spacing is greater than the second spacing.

5. The coke cleaning tool according to claim 2, characterized in that: The scraper includes a first surface and a second surface, the first surface is located at the tail portion, and the second surface is located at the front portion of the scraper; In the first state, the first surface is used to fit with the first surface of the external burner, and the second surface is used to fit with the air outlet surface of the external burner; In the second state, the first surface abuts against the limiting portion.

6. The coke cleaning tool according to claim 2, characterized in that: The connecting pipe includes a pipe body, the tail portion includes a first through hole, the first through hole passes through the tail portion, the rotating shaft passes through the first through hole, and both ends of the rotating shaft are respectively connected to the pipe body.

7. The coke cleaning tool according to claim 1, wherein: The coke cleaning tool includes a flange portion, which includes a sealing flange. The sealing flange is located between the scraper and the driving portion. The sealing flange is slidably connected to the connecting shaft, and one side of the sealing flange is used to fit with the second surface of the external burner.

8. The coke cleaning tool according to claim 7, characterized in that: The flange portion includes a first flange and a second flange, the first flange is slidably connected to the connecting shaft, and in the first state, the first flange is in contact with the other surface of the sealing flange; The second flange is fixedly connected to the connecting shaft, and is connected to the first flange via long bolts. The second flange is spaced apart from the first flange along the first direction, and the first flange can move relative to the second flange along the first direction.

9. The coke cleaning tool according to claim 5, characterized in that: The scraper includes a first concave portion, which is provided between the first surface and the second surface. The first concave portion is used to be spaced apart from the first convex portion of the external burner.

10. The coke cleaning tool according to claim 2, characterized in that: The connecting pipe is a heat-resistant pipe.

11. The coke cleaning tool according to claim 1, wherein: The driving part is a hand wheel.

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