An electric precipitator dust collecting device

Abstract

The present application relates to the technical field of electric dust removal, and particularly relates to a dust collecting device of an electric dust collector, which comprises a dust collecting unit, a shaking unit and a dust suppressing unit; the dust collecting unit comprises a dust collecting assembly arranged at the lower side of a dust hopper, an opening and closing assembly arranged at one side of the dust collecting assembly, and a dust suppressing assembly arranged at the upper side of the dust collecting assembly; the shaking unit comprises a swinging assembly arranged at one side of the dust hopper, a shaking assembly arranged at the inner side of the swinging assembly, and a linkage assembly arranged at one side of the swinging assembly. The dust collecting device has the beneficial effects that the dust hopper is shaken by the shaking hammer, so that the dust accumulated on the inner wall after collecting the falling dust falls into the dust collecting box, and the water in the water storage tank falls along with the falling dust to suppress the dust, thereby preventing the flying dust from affecting the operation of the internal mechanism. In addition, the dust collecting box can timely treat the dust when the dust accumulates to a certain degree in cooperation with the opening and closing plate and the lifting track, thereby preventing the excessive dust from affecting the dust collecting effect and treating the dust in time.

Description

Technical Field

[0001] This invention relates to the field of electrostatic precipitator technology, and in particular to a dust collection device for an electrostatic precipitator. Background Technology

[0002] Electrostatic precipitators (ESPs) are essential equipment in thermal power plants. Their function is to remove particulate matter from the flue gas emitted by coal-fired or oil-fired boilers, significantly reducing the amount of particulate matter released into the atmosphere. This is a crucial environmental protection device for improving air quality and reducing pollution. The working principle is as follows: as the flue gas passes through the duct before the main structure of the ESP, the particulate matter becomes positively charged. The flue gas then enters the ESP channel, which contains multiple layers of cathode plates. Due to the mutual attraction between the positively charged particulate matter and the cathode plates, the particulate matter in the flue gas is adsorbed onto the cathodes. Periodic impacts on the cathode plates cause a certain thickness of dust to fall into the ash hopper below the ESP structure under the combined effects of its own weight and vibration, thus achieving the purpose of removing particulate matter from the flue gas. During operation, ESPs typically have a lower ash hopper. However, prolonged use can lead to ash accumulation and blockage in the ash hopper. Excessive ash accumulation can also cause dust to be generated and adsorbed onto the outer wall of the ESP's internal structure when it stops operating, ultimately affecting the performance of the ESP and even causing damage. Summary of the Invention

[0003] In view of the problems existing in the above or prior art, the present invention is proposed.

[0004] Therefore, the purpose of this invention is to provide a dust collection device for an electrostatic precipitator, which can clean and collect the ash accumulated on the inner wall of the lower ash hopper, suppress dust during the collection process, and promptly clean and discharge the ash when it reaches a certain level.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a dust collection device for an electrostatic precipitator, comprising a dust collection unit, including a dust collection component disposed on the lower side of the lower ash hopper, an opening and closing component disposed on one side of the dust collection component, and a dust suppression component disposed on the upper side of the dust collection component;

[0006] The rapping unit includes a swing assembly disposed on one side of the lower ash hopper, a rapping assembly disposed inside the swing assembly, and a linkage assembly disposed on one side of the swing assembly.

[0007] As a preferred embodiment of the dust collection device of the electrostatic precipitator of the present invention, the dust collection assembly includes a dust collection box disposed on the lower side of the lower ash hopper, a lifting rail disposed on the outside of the dust collection box, and a return spring disposed at the bottom of the dust collection assembly.

[0008] As a preferred embodiment of the dust collection device of the electrostatic precipitator of the present invention, the opening and closing assembly includes a rotating connecting rod disposed on the outside of the lifting track, an opening and closing plate disposed on the inside of the rotating connecting rod, and a pushing connecting rod disposed on the inside of the rotating connecting rod.

[0009] As a preferred embodiment of the dust collection device of the electrostatic precipitator of the present invention, the dust suppression component includes a water tank disposed at the top of the lifting track and a movable grid plate disposed at the lower side of the water tank.

[0010] The movable grid is made of flexible material and can seal the water tank when the grid is closed.

[0011] As a preferred embodiment of the dust collection device of the electrostatic precipitator of the present invention, the swing assembly includes a motor shaft disposed on one side of the lower ash hopper, a rotating pin disposed on the outside of the motor shaft, a motor fixedly connected to the rotating pin, a set of swing teeth disposed on the inside of the control swing arm, and a transmission gear meshing with the swing teeth.

[0012] As a preferred embodiment of the dust collection device of the electrostatic precipitator of the present invention, the rapping assembly includes a fixed shaft disposed on the upper side of the motor shaft, a set of control swing rods disposed on the outer side of the fixed shaft, and a rapping hammer disposed on the inner side of the control swing rods.

[0013] As a preferred embodiment of the dust collection device of the electrostatic precipitator of the present invention, the linkage component includes a linkage swing rod disposed between the transmission gear and the vibrating hammer, and a connecting block hinged to the linkage swing rod.

[0014] The connecting block is fixedly connected to the movable grid plate.

[0015] As a preferred embodiment of the dust collection device of the electrostatic precipitator of the present invention, the opening and closing plate is inserted into the bottom of the dust collection box. A groove is provided on one side of the bottom of the dust collection box, and an upwardly inclined channel is provided on the other side. When the opening and closing plate is inserted, it can be placed horizontally at the bottom of the dust collection box to seal it through the groove and the channel. When it is pulled out, it can be in an inclined state to facilitate the pouring out of the contents of the dust collection box.

[0016] As a preferred embodiment of the dust collection device of the electrostatic precipitator of the present invention, a support frame is provided on the outer side of the lower ash hopper. The support frame is generally fixedly connected to the outer shell of the electrostatic precipitator. The part of the support frame located on the side of the motor shaft is provided with a long support plate, so that both the motor shaft and the motor can be fixed on the inner side of the support plate.

[0017] As a preferred embodiment of the dust collection device of the electrostatic precipitator of the present invention, the swing direction of the control swing arm is consistent with the swing direction of the vibrating hammer and opposite to the swing direction of the linkage swing arm. When the vibrating hammer vibrates the lower ash hopper, the linkage swing arm pulls the moving grid plate outward, so that the opening of the moving grid plate is aligned with the bottom opening of the water storage tank, so that the water in the water storage tank falls into the dust collection box and prevents dust from being raised.

[0018] The beneficial effects of this invention are as follows: This invention uses a vibrating hammer to vibrate the lower ash hopper, causing the ash remaining on the inner wall after collection to fall into the dust collection box. At the same time, the opening and closing of the moving grid allows water in the water storage tank to fall along with the ash, thus suppressing dust and preventing dust from affecting the operation of the internal mechanism. In addition, the dust collection box can also work with the opening and closing plate and the lifting track to promptly handle ash accumulation when it reaches a certain level, preventing excessive ash accumulation from affecting the dust collection effect and achieving the purpose of timely ash treatment. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0020] Figure 1 This is a schematic diagram of the overall structure of the dust collection device in an electrostatic precipitator.

[0021] Figure 2 This is a schematic diagram of the internal structure of the dust collection unit in an electrostatic precipitator.

[0022] Figure 3 This is a partial cross-sectional view of the opening and closing components of the dust collection device in an electrostatic precipitator.

[0023] Figure 4 This is a partial structural diagram of the rapping unit of the dust collection device in an electrostatic precipitator. Detailed Implementation

[0024] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0027] Example 1

[0028] Reference Figures 1-4 This is the first embodiment of the present invention. This embodiment provides a dust collection device for an electrostatic precipitator, which can clean and collect the ash accumulated on the inner wall of the lower ash hopper, suppress dust during the collection process, and clean and discharge the ash in a timely manner when a certain amount of ash has been collected.

[0029] Specifically, the dust collection unit 100 includes a dust collection component 101 disposed on the lower side of the ash hopper, an opening and closing component 102 disposed on one side of the dust collection component 101, and a dust suppression component 103 disposed on the upper side of the dust collection component 101.

[0030] The vibrating unit 200 includes a swing component 201 disposed on one side of the lower ash hopper, a vibrating component 202 disposed inside the swing component 201, and a linkage component 203 disposed on one side of the swing component 201.

[0031] Furthermore, the dust collection assembly 101 includes a dust collection box 101a disposed on the lower side of the dust hopper, a lifting track 101b disposed on the outside of the dust collection box 101a, and a return spring 101c disposed at the bottom of the dust collection assembly 101. The return springs 101c at the bottom of the dust collection box 101a are respectively disposed at the four corners of the bottom of the dust collection box 101a. One end of the return spring 101c is fixedly connected to the bottom of the dust collection box 101a and the other end is fixedly connected to the ground. A horizontal groove is provided on one side of the inner side of the dust collection box 101a, and an upwardly inclined channel is provided on the side opposite to the horizontal groove. The part of the channel near the outer side is a horizontal channel.

[0032] Furthermore, the opening and closing assembly 102 includes a rotating connecting rod 102a disposed on the outside of the lifting track 101b, an opening and closing plate 102b disposed on the inside of the rotating connecting rod 102a, and a pushing connecting rod 102c disposed on the inside of the rotating connecting rod 102a. One end of the upper side of the rotating connecting rod 102a is hinged to the outside of the lifting track 101b, and the other end is hinged to the lower end of the pushing connecting rod 102c. The other end of the pushing connecting rod 102c is hinged to the bottom of the dust collection box 101a. The inner side of the rotating connecting rod 102a is hinged to both ends of the opening and closing plate 102b, so that the opening and closing plate 102b can reciprocate to open and close. At the same time, it forms a certain angle during the movement, ensuring that it can accurately fit into the horizontal groove when moving inward, and can also smoothly tilt downward when moving outward.

[0033] Furthermore, the dust suppression component 103 includes a water storage tank 103a disposed on the top of the lifting track 101b and a movable grid plate 103b disposed on the lower side of the water storage tank 103a, wherein the water storage tank 103a surrounds the outer side of the lower ash hopper end and has two drain holes on the lower side.

[0034] The movable grid plate 103b is made of flexible material and can seal the water storage tank 103a when the grid is closed.

[0035] Furthermore, the swing assembly 201 includes a motor 201c shaft 201a disposed on one side of the lower ash hopper, a rotating pin 201b disposed on the outside of the motor 201c shaft 201a, a motor 201c fixedly connected to the rotating pin 201b, a set of swing teeth 201d disposed on the inside of the control swing rod 202b, and a transmission gear 201e meshing with the swing teeth 201d. The rotating pin 201b rotates along the motor 201c shaft 201a. The motor 201c can be controlled to start and stop as needed, or can be programmed to rotate or stop at set times. The motor 201c is fixedly connected to the support frame provided on the outside of the lower ash hopper.

[0036] Furthermore, the rapping assembly 202 includes a fixed shaft 202a disposed on the upper side of the motor 201c shaft 201a, a set of control levers 202b disposed on the outer side of the fixed shaft 202a, and a rapping hammer 202c disposed on the inner side of the control levers 202b. The rapping hammer 202c is made of elastic material, so that it will not cause significant damage to the ash hopper when it rapping.

[0037] It should be noted that the fixed shaft 202a is fixedly connected to the support frame, the control lever 202b and the swing gear 201d both rotate along the fixed shaft 202a, and the fixed shaft 202a is fixedly connected to the gear shaft of the transmission gear 201e.

[0038] Furthermore, the linkage assembly 203 includes a linkage lever 203a disposed between the transmission gear 201e and the vibrating hammer 202c, and a connecting block 203b hinged to the linkage lever 203a.

[0039] The connecting block 203b is fixedly connected to the movable grid plate 103b.

[0040] It should be noted that the movable grid plate 103b is annular and has two rows of through holes corresponding to the water outlet of the water storage tank 103a. When the through holes are aligned with the water outlet, the water in the water storage tank 103a falls down. When the through holes are misaligned with the water outlet, the unperforated part of the movable grid plate 103b seals the water outlet of the water storage tank 103a, preventing the water in the water storage tank 103a from falling down.

[0041] Preferably, the hinged plate 102b is inserted into the bottom of the dust collection box 101a. The bottom of the dust collection box 101a has a groove on one side and an upwardly inclined channel on the other side. This allows the hinged plate 102b to be horizontally placed at the bottom of the dust collection box 101a for sealing during insertion, through the groove and channel. When withdrawn, it can be tilted to facilitate the emptying of the contents of the dust collection box 101a. A support frame is provided on the outside of the lower ash hopper. The support frame is generally fixedly connected to the outer shell of the electrostatic precipitator. The portion of the support frame located on the side of the motor 201c shaft 201a has a longer support plate, allowing both the motor 201c shaft 201a and the motor 201c to be fixed inside the support plate. The swing direction of the control lever 202b is consistent with the swing direction of the vibrating hammer 202c, but opposite to the swing direction of the linkage lever 203a. When the vibrating hammer 202c vibrates the lower ash hopper, the linkage lever 203a pulls the moving grid plate 103b outward, aligning the opening of the moving grid plate 103b with the bottom opening of the water storage tank 103a, so that the water stored in the water storage tank 103a falls into the dust collection box 101a, preventing dust from being stirred up.

[0042] During operation, after the electrostatic precipitator has been working for a period of time, a certain amount of dust particles accumulate on the inner wall of the lower ash hopper. The operator turns on the motor 201c, which drives the rotating pin 201b to rotate synchronously. The rotating pin 201b rotates along the through groove on the inner side of the control swing rod 202b, causing the control swing rod 202b to swing in sync with the rotation of the rotating pin 201b. The control swing rod 202b drives the vibrating hammer 202c to swing synchronously, causing the vibrating hammer 202c to vibrate the lower ash hopper at a regular frequency, dislodging the accumulated dust from the inner wall of the lower ash hopper and causing it to fall into the dust collection box 101a. Simultaneously, the swing tooth 201d swings synchronously and in the same direction as the control swing rod 202b. The swing tooth 201d meshes with the transmission gear 201e, which reciprocates in sync with the swing tooth 201d. At the same time, the transmission gear 201e drives the linkage swing rod 201a. The 3a swings synchronously, and the linkage swing rod 203a drives the moving grid plate 103b to reciprocate through the connecting block 203b. This causes the holes on the moving grid plate 103b to align with or offset from the bottom opening of the water storage tank 103a, following the vibration frequency of the vibrating hammer 202c. That is, when the vibrating hammer 202c vibrates, the moving grid plate 103b moves in the opposite direction of the swing direction of the vibrating hammer 202c, so that the holes on the moving grid plate 103b are aligned with the bottom opening of the water storage tank 103a. This allows the water in the water storage tank 103a to fall into the dust collection box 101a at the same time as the ash falls into it, reducing dust generation when the ash falls. When the vibrating hammer 202c leaves the ash hopper, the moving grid plate 103b moves in the opposite direction at the same time, offsetting its holes from the bottom opening of the water storage tank 103a, thus closing the opening of the water storage tank 103a, stopping the water from falling, and saving water.

[0043] As dust continuously falls into the dust collection box 101a, the weight borne by the dust collection box 101a increases continuously. Because the dust particles themselves are very light, when water used for dust suppression intermittently falls into the dust collection box 101a, while preventing dust from being stirred up, it also increases the weight of the dust. When the dust collection box 101a accumulates to a certain weight, it descends along the lifting track 101b. The dust collection box 101a drives one end of the push rod 102c to descend synchronously. Since the other end of the push rod 102c is hinged to the rotating rod 102a, the push rod 102c swings during the descent of the dust collection box 101a. Simultaneously, because the upper end of the rotating rod 102a intersects with the outer wall of the lifting track 101b, the push rod 102c drives the lower end of the rotating rod 102a to swing upwards, pulling the rotating rod 102a open... The hinge plate 102b moves outward, and one end of the hinge plate 102b leaves the groove provided on the inner wall of the dust collection box 101a. Due to the weight of the contents carried inside and its own weight, the hinge plate 102b tilts along the inclined channel at the other end, causing the contents of the dust collection box 101a to fall along the hinge plate 102b. At the same time, the swing angle of the hinge plate 102b is also adapted to the swing angle of the rotating connecting rod 102a. When the contents of the dust collection box 101a are tilted, the weight of the dust collection box 101a decreases, the return spring 101c releases the pressure, and the dust collection box 101a rises along the lifting track 101b. At the same time, it pushes one end of the connecting rod 102c to rise along with it, and the other end pulls the rotating connecting rod 102a to swing inward. The rotating connecting rod 102a pushes the hinge plate 102b to move inward, so that the hinge plate 102b re-enters the groove and seals the bottom of the dust collection box 101a.

[0044] In summary, this invention uses the vibrating hammer 202c to vibrate the lower ash hopper, causing the ash remaining on the inner wall after collection to fall into the dust collection box 101a. Simultaneously, the opening and closing of the movable grid plate 103b causes the water in the water storage tank 103a to fall along with the ash, thus suppressing dust and preventing dust from affecting the operation of the internal mechanism. In addition, the dust collection box 101a can also work with the opening and closing plate 102b and the lifting track 101b to promptly handle ash accumulation when it reaches a certain level, preventing excessive ash accumulation from affecting the dust collection effect and achieving the purpose of timely ash treatment.

[0045] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (such as variations in installation arrangement, use of materials, color, orientation, etc.) without substantially departing 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 invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "support plus function" clause is intended to cover the structure performing the function described herein, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the invention is not limited to the particular embodiments but extends to a variety of modifications that still fall within the scope of the appended claims.

[0046] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments may be omitted.

[0047] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine task in design, manufacturing, and production without requiring extensive experimentation.

[0048] 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 it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A dust collection device for an electrostatic precipitator, characterized in that: include, The dust collection unit (100) includes a dust collection component (101) disposed on the lower side of the lower ash hopper, an opening and closing component (102) disposed on one side of the dust collection component (101), and a dust suppression component (103) disposed on the upper side of the dust collection component (101). The dust collection component (101) includes a dust collection box (101a) disposed on the lower side of the lower ash hopper, and a lifting track (101b) disposed on the outside of the dust collection box (101a). The vibrating unit (200) includes a swing assembly (201) disposed on one side of the lower ash hopper, a vibrating assembly (202) disposed inside the swing assembly (201), and a linkage assembly (203) disposed on one side of the swing assembly (201). The dust suppression component (103) includes a water tank (103a) disposed on the top of the lifting rail (101b) and a movable grid plate (103b) disposed on the lower side of the water tank (103a). The movable grid plate (103b) is made of flexible material and can seal the water storage tank (103a) when the grid is closed; The swing assembly (201) includes a motor shaft (201a) disposed on one side of the lower ash hopper, a rotating pin (201b) disposed on the outside of the motor shaft (201a), a motor (201c) fixedly connected to the rotating pin (201b), a set of swing teeth (201d) disposed on the inside of the control swing arm (202b), and a transmission gear (201e) meshing with the swing teeth (201d). The vibratory assembly (202) includes a fixed shaft (202a) disposed on the upper side of the motor shaft (201a), a set of control levers (202b) disposed on the outer side of the fixed shaft (202a), and a vibratory hammer (202c) disposed on the inner side of the control levers (202b). The linkage component (203) includes a linkage lever (203a) disposed between the transmission gear (201e) and the vibratory hammer (202c), and a connecting block (203b) hinged to the linkage lever (203a). The connecting block (203b) is fixedly connected to the movable grid plate (103b); The swing direction of the control lever (202b) is consistent with the swing direction of the vibrating hammer (202c) and opposite to the swing direction of the linkage lever (203a). When the vibrating hammer (202c) vibrates the lower ash hopper, the linkage lever (203a) pulls the moving grid plate (103b) outward, so that the opening of the moving grid plate (103b) is aligned with the bottom opening of the water storage tank (103a), so that the water in the water storage tank (103a) falls into the dust collection box (101a) to prevent dust from being stirred up.

2. The dust collection device for an electrostatic precipitator as described in claim 1, characterized in that: The dust collection assembly (101) also includes a return spring (101c) disposed at the bottom of the dust collection assembly (101).

3. The dust collection device for an electrostatic precipitator as described in claim 2, characterized in that: The opening and closing assembly (102) includes a rotating link (102a) disposed on the outside of the lifting rail (101b), an opening and closing plate (102b) disposed on the inside of the rotating link (102a), and a pushing link (102c) disposed on the inside of the rotating link (102a).

4. The dust collection device for an electrostatic precipitator as described in claim 3, characterized in that: The opening and closing plate (102b) is inserted into the bottom of the dust collection box (101a). The bottom of the dust collection box (101a) has a groove on one side and an upwardly inclined channel on the other side, so that the opening and closing plate (102b) can be placed horizontally at the bottom of the dust collection box (101a) for sealing when inserted, through the groove and the channel. When pulled out, it can be tilted to facilitate the pouring out of the contents of the dust collection box (101a).

5. The dust collection device for an electrostatic precipitator as described in claim 4, characterized in that: The lower ash hopper is provided with a support frame on the outside. The support frame is generally fixedly connected to the shell of the electrostatic precipitator. The part of the support frame on the side of the motor shaft (201a) is provided with a long support plate, so that both the motor shaft (201a) and the motor (201c) can be fixed on the inside of the support plate.

Images