Traction assembly and dust remover ash hopper heating device

Abstract

The invention discloses a traction assembly and a heating device for an ash hopper of a dust remover, and the traction assembly comprises a bracket which comprises a sliding chamber; the movable platform is connected with the sliding cavity in a sliding manner; the first pulley mechanism is connected to the mounting surface of the bottom of the bracket; the second pulley mechanism is connected to a mounting block at the bottom of the movable platform; a traction rope used for control is arranged between the first pulley mechanism and the second pulley mechanism. The heating device for the ash bucket of the dust remover is provided with a traction assembly, a lifting block, a movable platform, a sliding block and other structures, so that the position of a coil pipe can be accurately adjusted, welding is reliable, multi-point steam monitoring devices are introduced on the basis of a traditional steam heating coil pipe and are arranged at equal intervals along the coil pipe, and by monitoring the distribution change of steam temperature in the coil pipe, the heating efficiency is improved. Whether heat transfer of the wall surface of the ash bucket is abnormal or not can be indirectly reflected, so that whether the inner wall of the ash bucket is coked or not is judged, and the function extension of the coil pipe from'only heating 'to'heating and auxiliary detection' is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of heaters, and in particular to a traction component and a heating device for a dust collector hopper. Background Art

[0002] In thermal power plants, to prevent the ash collected in the electrostatic precipitator hopper from becoming damp and hardened, potentially clogging the hopper, and to maintain the hopper's outer wall temperature above the dew point of the flue gas being processed, reliable heating is required on the hopper's exterior in addition to ensuring airtightness. In recent years, with the widespread adoption of low-temperature electrostatic precipitators, energy-saving ceramic disc heaters and steam coil heaters have emerged.

[0003] Steam coil heating means installing heating coils on the four sides of the ash hopper's outer wall. By inputting high-temperature steam into the coils, the ash hopper is heated. Through continuous and uninterrupted steam operation, the temperature can always be kept above the set temperature. For new projects, the steam coils are easy to manufacture and install. They are integrated with the ash hopper wall before leaving the factory. On-site connection with the steam main pipe is sufficient. Strict quality control is implemented during the manufacturing and installation process. No maintenance is required during normal operation. The source of steam can be diverse, as long as the pressure and temperature meet the requirements.

[0004] In response to the call for energy conservation and emission reduction, during the renovation of the existing ash hopper, the original electric heater can be removed and a new steam coil can be installed. During installation, a notch is cut in the secondary reinforcement at the corresponding position on the outer wall of the ash hopper, and then the coil is welded to the installed horizontal bracket, making it as close to the ash hopper wall as possible. The cutting position is then reinforced, and finally the outside is covered with thermal insulation reflective material to ensure that the heat is transferred to the ash hopper wall as much as possible.

[0005] The following problems exist in this process. Since the ash hopper has been installed, it is more difficult to weld the coils. It is necessary to weld the horizontal bracket first, then hoist the coil onto the horizontal bracket, and then adjust it. Only then will it be convenient to fix and weld the coils at different heights. At this time, there is a narrow cavity between the coil and the ash hopper wall. The coil indirectly conducts heat by heating the air in the cavity, which results in a certain amount of heat loss. In addition, the coil mechanism itself is only used for heating and cannot assist in detecting the internal coking situation. Summary of the Invention

[0006] In view of the above problems existing in the existing dust collector hopper heating device, the present invention is proposed.

[0007] Therefore, one of the objects of the present invention is to provide a traction assembly, which aims to facilitate the installation of the coil on the hopper wall.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising:

[0009] a bracket having a sliding chamber disposed therein; and

[0010] A movable platform, wherein the movable platform is slidably connected to the sliding chamber;

[0011] A first pulley mechanism is connected to the mounting surface at the bottom of the bracket;

[0012] A second pulley mechanism is connected to the mounting block at the bottom of the movable platform;

[0013] A traction rope for control is provided between the first pulley mechanism and the second pulley mechanism.

[0014] As a preferred solution of the traction assembly of the present invention, the first pulley mechanism and the second pulley mechanism each include a first mounting plate, a second mounting plate and a pulley, and the pulley is rotatably connected to the first mounting plate and the second mounting plate via a rotating shaft.

[0015] As a preferred solution of the traction assembly of the present invention, there are multiple pulleys, and the radii of the multiple pulleys are arranged in sequence from small to large.

[0016] As a preferred solution of the traction assembly of the present invention, one end of the traction rope is fixedly connected to the first pulley mechanism or the second pulley mechanism, and the traction rope passes around the pulley, and the other end is connected to the external device.

[0017] The beneficial effects of the present invention are as follows: a traction assembly with a pulley mechanism, a bracket and a movable platform is provided, so that after the installation is completed, the coil can be quickly adjusted in position and reliably welded by pulling the traction rope, which solves the problem that there is still a certain distance between the installed coil itself and the ash hopper wall under the old ash hopper structure, improves the efficiency of heat conduction, and makes it possible to subsequently use the coil to detect coking inside the ash hopper.

[0018] Another object of the present invention is to provide a dust collector hopper heating device, which is intended to assist in detecting the internal coking situation while heating the coil.

[0019] As a preferred solution of the dust collector hopper heating device of the present invention, it includes a traction component and also includes:

[0020] A connecting block, the top of which is slidably connected to a horizontal slider;

[0021] A locking block is rotatably connected to the horizontal slider;

[0022] The movable frame is movably connected to the top of the horizontal slider, and one side of the movable frame is threadedly connected to a locking screw for fixing;

[0023] The coil section has a number of steam monitoring devices fixedly connected thereto.

[0024] As a preferred solution of the dust collector ash hopper heating device of the present invention, the bottom of the connecting block is rotatably connected to an adjusting screw, and the adjusting screw is threadedly connected to the movable platform.

[0025] As a preferred solution of the dust collector ash hopper heating device of the present invention, it also includes:

[0026] a plug plate fixed to an end of the first pulley mechanism opposite to the second pulley mechanism;

[0027] a wire hanging mechanism, provided at an end of the second pulley mechanism opposite to the first pulley mechanism;

[0028] The wire hanging mechanism includes a shell, a sliding plate arranged inside the shell, and a column fixed on the sliding plate. A first cavity and a second cavity are provided inside the shell. The top end of the column passes through the bottom of the shell and conflicts with the inner top wall of the first cavity. A spring is provided between the bottom surface of the second cavity and the sliding plate.

[0029] As a preferred solution of the dust collector ash hopper heating device of the present invention, it also includes:

[0030] The sliding groove is provided on the upper surface of the horizontal sliding block. The sliding groove is slidably connected to the outer circle of the movable frame. The outer circle is provided with a locking slot.

[0031] As a preferred solution of the dust collector ash hopper heating device described in the present invention, the plug column includes a vertical section and an inclined section, the top end of the vertical section and the bottom end of the inclined section are fixedly connected, and the inclined section is inclined along the movement direction of the second pulley mechanism.

[0032] As a preferred solution of the dust collector ash hopper heating device of the present invention, the steam monitoring device is arranged linearly along the axis of the coil section.

[0033] The beneficial effects of the present invention are as follows: a multi-point steam monitoring device is introduced on the basis of the traditional steam heating coil, which is arranged equidistantly along the coil to realize continuous monitoring of the steam temperature drop in the coil. By monitoring the distribution change of the steam temperature in the coil, it can indirectly reflect whether the heat transfer on the ash hopper wall is abnormal, thereby judging whether coking occurs on the inner wall of the ash hopper. The function of the coil is expanded from "only for heating" to "heating + auxiliary detection", and the intelligence level of the system is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0035] Figure 1 A half-cut perspective view of the first embodiment is shown;

[0036] Figure 2 A half-cutaway perspective view of the second embodiment is shown;

[0037] Figure 3 Shows a three-dimensional installation diagram of the coil;

[0038] Figure 4 shows a perspective view of the third embodiment;

[0039] Figure 5 A half-section view of the third embodiment is shown;

[0040] Figure 6 An enlarged view of Figure A of Example 3 is shown;

[0041] Figure 7 shows a heat transfer diagram under normal operating conditions;

[0042] Figure 8 The heat transfer diagram under the condition of local coking is shown;

[0043] Figure 9 A schematic diagram showing the coking at the corresponding position on the segment is shown;

[0044] Figure 10 A schematic diagram showing the occurrence of coking at corresponding positions between segments is shown. DETAILED DESCRIPTION

[0045] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below with reference to specific embodiments and the accompanying drawings.

[0046] The terms used in the present invention are those commonly used in the art in view of the functions of the present invention, but these terms may vary according to the intentions of those skilled in the art, precedents, or new technologies in the art. In addition, specific terms may be selected by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the present invention. Therefore, the terms used in the specification should not be understood as simple names, but rather as the meanings of the terms and the overall description of the present invention.

[0047] Example 1, with reference to Figure 1This embodiment provides a traction assembly, including a bracket 100, which is provided with a sliding chamber 101; and a movable platform 200, wherein the movable platform 200 and the sliding chamber 101 are slidingly connected; a first pulley mechanism 300, connected to the mounting surface 100a at the bottom of the bracket 100; a second pulley mechanism 400, connected to the mounting block 201 at the bottom of the movable platform 200; a traction rope 500 for control is provided between the first pulley mechanism 300 and the second pulley mechanism 400.

[0048] The first pulley mechanism 300 and the second pulley mechanism 400 both include a first mounting plate 301, 401, a second mounting plate 302, 402 and pulleys 303, 403, and the pulleys 303, 403 are rotatably connected to the first mounting plates 301, 401, and the second mounting plates 302, 402 through a rotating shaft; one end of the traction rope 500 is fixedly connected to the first pulley mechanism 300 or the second pulley mechanism 400, and the traction rope 500 passes around the pulleys 303, 403, and the other end is connected to an external device.

[0049] During use, one end of the traction rope 500 is fixed to one end of the first pulley mechanism 300 or the second pulley mechanism 400. A cavity is opened on one end of the first pulley mechanism 300 or the second pulley mechanism 400. The inner top of the cavity has a bolt hole, and the bottom of the cavity has a through hole that penetrates the cavity to the outside. The bolt is inserted from the through hole, passes through the rope loop on the rope head of the traction rope 500, and is threadedly connected with the bolt hole, thereby fixing the traction rope 500 and one end of the first pulley mechanism 300 or the second pulley mechanism 400. After use, it is disassembled and the traction rope 500 is recovered.

[0050] In one case, the traction rope 500 is passed around the pulley 303 of the first pulley mechanism 300 and then wound out from one end of the pulley 403 of the second pulley mechanism 400 to form a pulley block. A winch or other traction equipment installed on the ground is used to pull the traction rope 500 to pull the movable platform 200 from the far end of the bracket 100 to a position close to the outer wall of the ash hopper, thereby facilitating subsequent welding operations and avoiding the existence of a heat-dissipating medium when heating through the cavity, which makes subsequent detection operations impossible.

[0051] In another case, the traction rope 500 is passed around the pulley 403 of the second pulley mechanism 400 and then passed out from one end of the pulley 303 of the first pulley mechanism 300 to form a pulley block.

[0052] Example 2, reference Figure 2 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: a plurality of pulleys 303, 403 are provided, and the radius of the plurality of pulleys 303, 403 are arranged in sequence from small to large.

[0053] During use, the axes of multiple pulleys 303 and 403 are all on the same horizontal plane. The traction rope 500 is wrapped around the pulley 403 or the pulley 303 and out from one end to form a labor-saving pulley group, thereby reducing the traction force. A small winch or other low-power traction equipment set on the ground is used to pull the traction rope 500, reducing the force required to pull the complete coil.

[0054] Example 3, reference Figure 3 、 4 , 5 and 6 are the third embodiment of the present invention, which provides a dust hopper heating device for a dust collector. This embodiment differs from the second embodiment in that it includes a traction assembly, a connecting block 202, a horizontal slider 204 being slidably connected to the top of the connecting block 202; a locking block 205 being rotatably connected to the horizontal slider 204; a movable frame 206 being movably connected to the top of the horizontal slider 204 and having a locking screw 207 threadedly connected to one side for fixing; a coil section 700, to which a plurality of steam monitoring devices 701 are fixedly connected; an adjusting screw 203 being rotatably connected to the bottom of the connecting block 202, and the adjusting screw 203 being threadedly connected to the movable platform 200;

[0055] The device further includes an inserting plate 304 fixed to the end of the first pulley mechanism 300 opposite to the second pulley mechanism 400; a wire hanging mechanism 600 provided at the end of the second pulley mechanism 400 opposite to the first pulley mechanism 300; the wire hanging mechanism 600 includes a housing 601, a sliding plate 602 provided inside the housing 601, and a plug 603 fixed to the sliding plate 602; a first cavity 601a and a second cavity 601b are provided inside the housing 601; the top end of the plug 603 passes through the bottom of the housing 601 and contacts the inner top wall of the first cavity 601a; a spring 604 is provided between the bottom surface of the second cavity 601b and the sliding plate 602;

[0056] It also includes a sliding groove 204a, which is opened on the upper surface of the horizontal slider 204. The sliding groove 204a is slidably connected to the outer circle 206a of the movable frame 206, and a locking slot 206b is opened on the outer circle 206a; the plug 603 includes a vertical section 603a and an inclined section 603b, the top end of the vertical section 603a and the bottom end of the inclined section 603b are fixedly connected, and the inclined section 603b is inclined along the movement direction of the second pulley mechanism 400.

[0057] Compared to Example 1, during installation, multiple workers first weld the bracket 100 and then rotate the adjustment screw 203 to adjust the height of the movable frame 206 to ensure that the multiple movable frames 206 are at the same level so that the coil section 700 can be reliably supported.

[0058] After the coiled pipe section 700 is lifted and placed inside the movable frame 206, the locking screw 207 is rotated to clamp and secure the coiled pipe section 700. Then, using auxiliary tools, such as a hand chain hoist, the movable frame 206 is rotated and the horizontal slider 204 is slid so that the elbow at one end of the coiled pipe section 700 is aligned with the elbow of the subsequent coiled pipe section 700.

[0059] The locking block 205 is then manually rotated so that one end of the locking block 205 engages with the slot 206b. The end of the locking block 205 is a rectangular structure that can engage with the slot 206b of a matching shape, thereby limiting the rotation of the movable frame 206. By providing a wider head or increasing the number of clamping heads, the fixing effect can be improved, and the movable frame 206 is fixed, which facilitates subsequent welding with different sections of the coiled pipe 700 to form a whole.

[0060] Then, the traction rope 500 is wound up using a winch, driving the entire coil to slide closer to the outer wall of the ash hopper. When the pulling is almost completed, the insert plate 304 is inserted into the second cavity 601b, pressing the sliding plate 602 down. At this time, the vertical section 603a moves downward, causing the traction rope 500 to enter the inclined section 603b. With the pulling force, the sliding plate 602 is further pressed down, realizing the automatic loosening of the traction rope 500, reducing the number of manual operation steps, and finally completing the welding of the coil and the outer wall of the ash hopper, achieving better heat transfer.

[0061] During use, the coil is connected to an external gas source and saturated steam is introduced. When the saturated steam releases heat, it manifests as a change in internal dryness. By detecting the dryness, the change in heat release can be indirectly monitored. The steam monitoring device 701 is connected to the coil through an interface to form a sampling interface. The steam monitoring device 701 can use a model YX-GDJC steam monitoring system or other models of dryness detection probes to detect the degree of dryness change in different sections.

[0062] Since the heat transfer capacity between the coil and the hopper wall is constant, when there is no coking, the steam releases heat through the wall and is fully condensed, and the drop in dryness is within the normal range. At this time, by testing the values ​​of each test point, a reference curve can be obtained. This reference curve can reflect the reference value of the dryness change in each section under the condition of no coking;

[0063] Once localized coking blocks heat transfer, it's like adding a layer of insulation to the inner layer, blocking the normal heat conduction path and causing heat accumulation. As the coking layer grows, a heat accumulation point appears, further reducing heat transfer efficiency and reducing steam heat release. This manifests as an abnormally small decrease in dryness or even an increase in dryness exceeding normal values. Therefore, when the heat exchange between the coil at that location and the heat medium in the ash hopper weakens, the heat released by the steam in the coil decreases. The result is less steam condensation in that section, and a higher proportion of gas phase in the outlet steam—that is, the dryness is abnormally high relative to the baseline value.

[0064] Since the arrangement of the steam detection device 701 on the coil is as follows Figure 9 The steam detection devices 701 are arranged in the corresponding positions of the upper and lower layers, which is equivalent to dividing the entire ash hopper wall into 6x4 rectangular areas;

[0065] When arranging coils on the hopper wall, increase the coverage rate to ensure that any location where coking may occur is adjacent to a certain section of coils, or that the coils cover >90% of the total height of the hopper, avoiding large exposed areas on the top or between sections. This ensures that no matter whether coking occurs on a section or between sections, at least one section of the coil will experience a change in dryness. If the hopper is high or coking is found to be concentrated in a specific area during use, the number of sections can be further increased or additional sensors can be added to improve resolution.

[0066] When the coking location is located at the coil passing position, e.g. Figure 9 As shown, coking occurs between e1 and e2. At this time, the heat exchange efficiency of this section of the coil pipe decreases significantly, resulting in high steam dryness and reduced condensation in this section of the coil pipe. Since the coking is concentrated in a single coil section, the dryness drop value of e1 is different from the drop value of e3 at the coil end below. At this time, it is judged that the dryness of the single section of the coil pipe deviates abnormally from the baseline value (reaching or exceeding the individual abnormal threshold). If the dryness values ​​of the adjacent upper and lower sections, e3 and e4, remain within the normal range (or only fluctuate slightly without correlated deviation), it is inferred that the coking is concentrated on the wall of the coil section. If there is no abnormality in the adjacent sections and only the dryness of the single section increases suddenly, inter-segment coking or large-scale cross-segment coking can be ruled out.

[0067] When the coking location happens to be between two coil sections, e.g. Figure 10As shown in the figure, although each coil section is slightly affected, the dryness changes of the adjacent sections e2 and e1; e3 and e4 may all show slight anomalies. However, other sensors at the same location but different heights do not deviate from the initial values, which indicates that inter-segment coking may occur. Therefore, when the dryness of the adjacent upper and lower sections deviates from the baseline with a moderate amplitude (below their respective individual thresholds but showing a correlated change), it is inferred that the area between the two sections may have coking. In contrast, if only one section is abnormal while the adjacent sections are completely normal, the coking is more likely to be concentrated in the corresponding area of ​​that section.

[0068] When the dryness value exceeds the individual abnormal threshold over time, and the gap with the dryness values ​​of the adjacent upper and lower sections, e3 and e4, gradually widens, it can be determined that coking is growing. However, there is a situation at this time. After a period of development, the values ​​of e3 and e4 also show the same change trend as e2 and e1, but other measurement points have not changed. In this case, it can be determined that coking is growing in the direction of e3 and e4, and decoking is needed.

[0069] Setting e5 at the connection position of coil sections at different heights can add additional monitoring capabilities for the bend position. At this time, e1, e3 and e5 form a triangular area. When the dryness changes of e1, e3 and e5 are abnormal, it is inferred that the coking is concentrated on the wall position of the triangular area. If the difference between the changes of e1 and e3 is more obvious, it can be judged that the coking is likely concentrated in the corresponding area of ​​the section.

[0070] Through this fusion of adjacent sensor data, the blind areas between segments can be covered and sub-segment-level positioning accuracy can be achieved.

[0071] The remaining structures are the same as those of Example 2.

[0072] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without departing substantially from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structures. Other replacements, modifications, changes, and omissions may be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0073] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0074] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A traction assembly, characterized in that: include, A bracket (100) having a sliding chamber (101) disposed therein; and A movable platform (200), wherein the movable platform (200) is slidably connected to the sliding chamber (101); A first pulley mechanism (300) is connected to a mounting surface (100a) at the bottom of the bracket (100); A second pulley mechanism (400) is connected to a mounting block (201) at the bottom of the movable platform (200); A traction rope (500) for control is provided between the first pulley mechanism (300) and the second pulley mechanism (400).

2. The traction assembly according to claim 1, characterized in that: The first pulley mechanism (300) and the second pulley mechanism (400) both comprise a first mounting plate (301, 401), a second mounting plate (302, 402) and pulleys (303, 403); the pulleys (303, 403) are rotatably connected to the first mounting plate (301, 401) and the second mounting plate (302, 402) via a rotating shaft.

3. The traction assembly according to claim 2, characterized in that: A plurality of pulleys (303, 403) are provided, and the radii of the plurality of pulleys (303, 403) are arranged in sequence from small to large.

4. The traction assembly according to claim 2 or 3, characterized in that: One end of the traction rope (500) is fixedly connected to the first pulley mechanism (300) or the second pulley mechanism (400), and the traction rope (500) passes around the pulleys (303, 403), and the other end is connected to an external device.

5. A dust hopper heating device for a dust collector, characterized by: Including a traction assembly, further comprising, A connecting block (202) having a horizontal slider (204) slidably connected to the top thereof; The locking block (205) is rotatably connected to the horizontal slider (204); A movable frame (206) is movably connected to the top of the horizontal slider (204), and a locking screw (207) for fixing is threadedly connected to one side of the movable frame; The coil section (700) is fixedly connected with a plurality of steam monitoring devices (701).

6. The dust hopper heating device for a dust collector according to claim 5, characterized in that: The bottom of the connecting block (202) is rotatably connected to an adjusting screw (203), and the adjusting screw (203) and the movable platform (200) are threadedly connected.

7. The dust hopper heating device for a dust collector according to claim 6, characterized in that: Also includes, An inserting plate (304) is fixed to an end of the first pulley mechanism (300) opposite to the second pulley mechanism (400); A wire hanging mechanism (600) is provided at an end of the second pulley mechanism (400) opposite to the first pulley mechanism (300); The wire hanging mechanism (600) includes a housing (601), a sliding plate (602) arranged inside the housing (601), and a plug (603) fixed on the sliding plate (602); a first cavity (601a) and a second cavity (601b) are provided inside the housing (601); the top end of the plug (603) passes through the bottom of the housing (601) and contacts the inner top wall of the first cavity (601a); a spring (604) is provided between the bottom surface of the second cavity (601b) and the sliding plate (602).

8. The dust hopper heating device for a dust collector according to claim 7, characterized in that: Also includes, A sliding groove (204a) is provided on the upper surface of the horizontal slider (204). The sliding groove (204a) is slidably connected to the outer circle (206a) of the movable frame (206). A locking slot (206b) is provided on the outer circle (206a).

9. The dust hopper heating device for a dust collector according to claim 8, characterized in that: The plug post (603) includes a vertical section (603a) and an inclined section (603b), the top end of the vertical section (603a) and the bottom end of the inclined section (603b) are fixedly connected, and the inclined section (603b) is inclined along the movement direction of the second pulley mechanism (400).

10. The dust hopper heating device for a dust collector according to any one of claims 5, 6, 7, 8, and 9, characterized in that: The steam monitoring devices (701) are arranged linearly along the axis of the coil section (700).

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