Flue front-end tiny dust flow equalizing device

Abstract

The utility model discloses a dust flow equalizing device at the front end of a flue, which solves the problem of poor flow equalizing effect caused by a perforated plate used at the front end of the existing flue. The utility model provides a dust flow equalizing device at the front end of a flue, which is mounted at the front end of the flue and used for equalizing the flow of dust in flue gas, the dust flow equalizing device is arranged in an electrostatic field at the front end of the flue, the dust flow equalizing device comprises a flow equalizing assembly intercepted in the flue, and the flow equalizing assembly comprises a plurality of differential plates and a frame, the plurality of differential plates are sequentially fixed on the frame at intervals, an included angle is formed between each differential plate and the smoke exhaust direction of a flue, each differential plate is provided with a plurality of through holes and a plurality of spoilers, and the spoilers protrude from one ends of the through holes in the direction deviating from the differential plates so as to interfere the flowing of part of smoke. According to the dust flow equalizing device at the front end of the flue, the flow equalizing effect of flue gas is improved through the through holes and the spoilers arranged on the dust collecting plates, and dust in the flue gas can be charged more easily.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal equipment, in particular to a dust equalization device at the front end of a flue. Background Art

[0002] In the prior art, the dust removal device at the front end of the flue is usually equipped with multiple porous plates in the bell mouth at the front end of the flue, and a guide plate is arranged on the porous plate to homogenize the flow field of the flue gas in the flue so that the dust particles in the flue gas can be evenly distributed and the dust particles can be fully charged during the ionization process.

[0003] However, the flue gas basically does not change its flow direction when passing through the porous plate, resulting in the flue gas not being fully mixed. The porous plate has a poor effect in homogenizing the flow field, and the dust particles in the flue gas are not distributed very evenly. As a result, the dust in the flue gas cannot be fully charged, affecting the dust collection effect of the rear-end dust collection mechanism. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and propose a dust equalizing device at the front end of a flue to solve the problem that the porous plate used at the front end of the existing flue leads to poor equalizing effect.

[0005] In order to achieve the above technical objectives, the utility model proposes a dust flow equalization device at the front end of a flue, which is installed at the front end of the flue and is used to equalize the dust in the flue smoke. The dust flow equalization device is placed in the electrostatic field at the front end of the flue. The dust flow equalization device includes a flow equalization component intercepted in the flue, and the flow equalization component includes a plurality of differential plates and a frame. The plurality of differential plates are fixed on the frame at intervals in sequence, and the differential plate has an angle with the direction of smoke exhaust from the flue. The differential plate is provided with a plurality of through holes and some spoiler sheets. The spoiler sheet protrudes from one end of the through hole in a direction away from the differential plate to interfere with the flow of part of the smoke.

[0006] Preferably, the through holes are arranged in a plurality of rows in the vertical direction of the differential plate, and the spoilers are arranged in a plurality of rows accordingly, and the protrusion directions of two adjacent spoilers in the same row are opposite.

[0007] Preferably, two adjacent rows of through holes are staggered.

[0008] Preferably, the flow balancing component comprises an air inlet side and an air outlet side, and the spoiler is arranged on a side of the through hole close to the air outlet side; or,

[0009] The spoiler is arranged at one end of the through hole close to the air inlet side; or,

[0010] Part of the spoiler is arranged on a side of the through hole close to the air outlet side, and the other part of the spoiler is arranged on an end of the through hole close to the air inlet side.

[0011] Preferably, the through hole and the spoiler are integrally formed on the differential plate by stamping.

[0012] Preferably, the spoiler includes a fixed end and a free end, the fixed end is fixed to the differential plate, the free end gradually extends from the fixed end in a direction away from the differential plate, and the width of the spoiler gradually decreases in the direction from the fixed end to the free end.

[0013] Preferably, the differential plate includes a first differential plate portion, a second differential plate portion, a third differential plate portion and a fourth differential plate portion arranged in sequence along the airflow direction, two adjacent differential plate portions are mirrored to form a W shape, the first differential plate portion, the second differential plate portion, the third differential plate portion and the fourth differential plate portion are connected in sequence, and the differential plate is bent and formed as a whole to form a W shape.

[0014] Preferably, the dust flow balancing device further comprises a plurality of porous plates intercepted in the flue, the plurality of said porous plates are arranged in sequence along the smoke exhaust direction of the flue, and the said flow balancing component is arranged between two of said porous plates.

[0015] Preferably, the plurality of differential boards include a plurality of differential boards installed on the left side of the frame and a plurality of differential boards installed on the right side of the frame, and the differential boards on the left and right sides are mirror-imaged.

[0016] Preferably, the dust flow equalizing device also includes a vibrating device, a limiting bracket is installed at the front end of the flue, the limiting bracket is arranged on the left and right sides of the front end of the flue, the frame slides up and down along the limiting bracket, the vibrating device includes a bracket, a reciprocating motor and a vibrating beam, the reciprocating motor is installed on the wall of the flue through the bracket, the vibrating beam is fixedly connected to the output shaft of the reciprocating motor, the flow equalizing component is fixed on the vibrating beam, and the operation of the reciprocating motor drives the flow equalizing component to move to shake off the dust thereon.

[0017] After adopting the above technical solution, the utility model has the following beneficial effects.

[0018] 1. The utility model proposes a dust flow equalization device at the front end of a flue, which is installed at the front end of the flue and is used to equalize the dust in the flue gas. The dust flow equalization device also includes a flow equalization component intercepted in the flue, which is placed in the electrostatic field at the front end of the flue. The flow equalization component includes a plurality of differential plates and a frame, and the plurality of differential plates are fixed on the frame in sequence and at intervals. The differential plate has an angle with the direction of smoke exhaust from the flue, and the differential plate is provided with a plurality of through holes and some flow interference plates. The flow interference plate protrudes from one end of the through hole in the direction away from the differential plate to interfere with the flow of part of the flue gas. With such an arrangement, a flue gas flow channel is formed between two adjacent differential plates, and a flue gas flow channel is also formed between the differential plate at the edge of the flow equalization component and the flue wall. The smoke is blocked by the spoiler during its flow, thereby changing the flow direction of part of the smoke and increasing the complexity of the smoke flow. At the same time, due to the presence of the through hole, the smoke between two adjacent smoke flow ducts can flow in series, and the series flow of smoke makes the flow direction of the smoke in the smoke flow duct more complicated. In addition, the edge of the through hole also blocks the smoke flow velocity, which also increases the complexity of the smoke flow, so that the smoke in the smoke flow duct can be fully mixed and the flow field is homogenized. The dust particles in the smoke are more evenly distributed, and the dust particles can be more easily charged and negatively charged. In addition, since the differential plate has an angle with the direction of smoke exhaust from the flue, the spoiler area of ​​the differential plate is increased over a limited length, thereby increasing the flow balancing time of the smoke in the flow balancing component, better homogenizing the flow field, and the dust particles in the smoke are more evenly distributed, and the dust particles are more easily charged and negatively charged.

[0019] 2. The through holes are arranged in multiple rows in the vertical direction of the differential plate, and the spoilers are arranged in multiple rows accordingly, and the protrusion directions of two adjacent spoilers in the same row are opposite. With such arrangement, on the one hand, both sides of the differential plate are provided with spoilers, and the flue gas on both sides of the differential plate will change the flow direction after passing through the spoilers, thereby improving the effect of the flue gas homogenization flow field on both sides of the differential plate; on the other hand, the staggered arrangement of the spoilers provides a longer distance between the flue gas whose flow direction is changed and the next spoiler, so that the flue gas whose flow direction is changed can have sufficient time to rotate before being disturbed by the next disturbance, which is more conducive to the aggregation of fine dust into large particles, as well as the full mixing of the flue gas and the homogenization of the flow field, so as to facilitate the dust collection of the rear dust collection device.

[0020] 3. Two adjacent rows of through holes are arranged in a staggered manner. With this arrangement, smoke at different heights produces different flow phenomena, so that the two adjacent smoke streams affect each other, thereby better homogenizing the flow field.

[0021] 4. The flow equalization component includes an air inlet side and an air outlet side, and the spoiler is arranged on the side of the through hole close to the air outlet side. In this arrangement, the smoke is blocked and guided by the spoiler, making it easier for the smoke to flow into the adjacent smoke flow channel, thereby further increasing the complexity of the smoke flow in the smoke flow channel, thereby better homogenizing the flow field, and at the same time, further increasing the probability of the formation of large-particle dust clusters, so as to facilitate the dust collection of the rear-end dust collecting device. Or, the spoiler is arranged at one end of the through hole close to the air inlet side. In this arrangement, the smoke flow channels in different areas of the smoke flow channel have different movement trends, thereby further increasing the complexity of the smoke flow in the smoke flow channel, thereby better homogenizing the flow field, and at the same time, further increasing the probability of the formation of large-particle dust clusters, so as to facilitate the dust collection of the rear-end dust collecting device. Or, some spoilers are arranged on the side of the through hole close to the air outlet side, and other spoilers are arranged on the end of the through hole close to the air inlet side. With this arrangement, the flue gas flow ducts in different areas have different movement trends, thereby further increasing the complexity of the flue gas flow in the flue gas flow duct, thereby better homogenizing the flow field, and at the same time, further increasing the probability of the formation of large-particle dust clusters, so as to facilitate the dust collection of the rear-end dust collecting device.

[0022] 5. The through hole and the spoiler are stamped and formed integrally on the differential plate. With this arrangement, the processing of the differential plate is simpler, the cost of the current balancing component is lower, and the economic benefit is higher.

[0023] 6. The spoiler includes a fixed end and a free end. The fixed end is fixed on the differential plate. The free end gradually extends from the fixed end in a direction away from the differential plate. The width of the spoiler gradually decreases in the direction from the fixed end to the free end. With such a configuration, on the one hand, since the width of the spoiler is different at different positions, the blocking effect of the spoiler on the smoke at different positions is different, so that the smoke has a more complex rotation and movement direction, thereby better homogenizing the flow field; on the other hand, the shape of the spoiler is easier to form through a stamping process, and the stamping die cost is lower, which further simplifies the processing of the differential plate and reduces the cost of the flow equalization component.

[0024] 7. The differential plate includes a first differential plate portion, a second differential plate portion, a third differential plate portion and a fourth differential plate portion which are arranged in sequence along the airflow direction. Two adjacent differential plate portions are mirror-imaged to form a W-shape of the differential plate. The first differential plate portion, the second differential plate portion, the third differential plate portion and the fourth differential plate portion are connected in sequence, and the differential plate is bent and formed into a W-shape. In this way, four differential plate portions are arranged, and at the same time, two adjacent differential plate portions are mirrored to form a W-shape of the differential plate, and the flue gas flow path is also correspondingly W-shaped, and the flue gas undergoes multiple directional changes during the flow path, and the changes in this direction further increase the complexity of the flue gas flow, thereby better equalizing the process; at the same time, the W-shaped differential plate enables a single differential plate to occupy a smaller space, thereby improving the compactness of the flow equalizing component; and, avoiding the need to additionally set up small-sized differential plates on both sides of the flow equalizing component due to insufficient space, thereby further reducing the cost of the flow equalizing component; at the same time, the differential plate can be bent into shape by a bending machine, thereby avoiding the need for the first differential plate portion, the second differential plate portion, the third differential plate portion and the fourth differential plate portion to be welded to each other or fixed mechanically, thereby reducing the cost of the differential plate and the flow equalizing component.

[0025] 8. The plurality of differential plates include a plurality of differential plates installed on the left side of the frame and a plurality of differential plates installed on the right side of the frame, and the differential plates on the left and right sides are mirror images. Such an arrangement can make the resistance of smoke flow on both sides of the flue basically the same, so that the airflow load in the flue is roughly relatively balanced, optimize the path of smoke flow through the differential plates, reduce the dead corners of smoke collection, make it easier to capture the fine dust in the smoke, and better reduce the fine dust content in the smoke discharged from the flue.

[0026] 9. The dust flow equalization device also includes a plurality of porous plates intercepted in the flue, and the plurality of porous plates are arranged in sequence along the exhaust direction of the flue, and the flow equalization component is arranged between two of the porous plates. In this arrangement, the porous plate at the front end of the flow equalization component pre-equalizes the flue gas, so that the flue gas entering the flow equalization component is initially equalized, thereby improving the flow equalization effect of the dust flow equalization device. At the same time, a porous plate is also arranged at the rear end of the flow equalization component to equalize the flue gas passing through the flow equalization component again, further improving the flow equalization effect of the dust flow equalization device.

[0027] 10. The dust flow-equalizing device also includes a rapping device. A limited bracket is installed at the front end of the flue. The limited bracket is arranged on the left and right sides of the front end of the flue. The frame slides up and down along the limited bracket. The rapping device includes a bracket, a reciprocating motor and a rapping beam. The reciprocating motor is installed on the wall of the flue through the bracket. The rapping beam is fixedly connected to the output shaft of the reciprocating motor. The flow-equalizing component is fixed on the rapping beam. The reciprocating motor drives the flow-equalizing component to move to shake off the dust on it. In this way, since the flow-equalizing component has a large surface area, it is inevitable to capture dust on the differential plate during the homogenization flow field. By setting the rapping device, the dust captured on the flow-equalizing component can be shaken off, and the effect of the homogenization flow field of the flow-equalizing component can be maintained. At the same time, since the rear end of the flow-equalizing component is provided with a porous plate, the secondary dust in the deashing process of the flow-equalizing component can also be charged after being mixed in the flue gas when passing through the porous plate at the rear end, thereby avoiding the significant increase of the dust content in the flue gas discharged from the flue during the deashing process of the flow-equalizing component.

[0028] These features and advantages of the present invention will be disclosed in detail in the following specific implementation manners and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a side cross-sectional view of the dust flow balancing device in the embodiment of the utility model;

[0030] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0031] Figure 3 This is a cross-sectional schematic diagram of a dust flow balancing device in an embodiment of the utility model;

[0032] Figure 4 for Figure 3 The enlarged view of point B in the middle;

[0033] Figure 5 It is a schematic diagram of smoke passing through the flow equalizing component in an embodiment of the utility model.

[0034] Reference numerals:

[0035] 100. flow balancing component, 110. differential plate, 111. through hole, 112. spoiler, 113. first differential plate portion, 114. second differential plate portion, 115. third differential plate portion, 116. fourth differential plate portion, 117. flue gas flow channel, 120. frame;

[0036] 200, porous plate;

[0037] 300, vibrating device, 310, bracket, 320, reciprocating motor, 330, vibrating beam, 331, cross beam, 332, suspension beam;

[0038] 400. Limit bracket. DETAILED DESCRIPTION

[0039] The following is an explanation and description of the technical scheme of the embodiment of the utility model in conjunction with the drawings of the embodiment of the utility model, but the following embodiment is only a preferred embodiment of the utility model, not all. Based on the embodiment in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the utility model.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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, and therefore should not be understood as a limitation on the present invention.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" and "several" mean two or more, unless otherwise clearly defined.

[0042] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] Embodiment 1:

[0044] like Figures 1 to 5As shown, a dust flow equalization device at the front end of a flue proposed in the embodiment of the utility model is installed at the front end of the flue and is used to equalize the dust in the flue gas. The dust flow equalization device includes a flow equalization component 100 intercepted in the flue. The flow equalization component 100 includes a plurality of differential plates 110 and a frame 120. The plurality of differential plates 110 are fixed on the frame 120 in sequence and at intervals. The differential plates 110 have an angle with the direction of smoke exhaust from the flue. The differential plates 110 are provided with a plurality of through holes 111 and some flow interference sheets 112. The flow interference sheets 112 protrude from one end of the through hole 111 in a direction away from the differential plate 110 to interfere with the flow of flue gas. Among them, an electrostatic field is provided at the front end of the flue, and the electrostatic field ionizes the flue gas to charge the dust, so that the dust carries a negative charge, and is finally captured by the positively charged dust collecting device at the rear end to complete the dust removal. The dust flow equalization device is arranged in the electrostatic field at the front end of the flue.

[0045] With such arrangement, a flue gas flow passage 117 is formed between two adjacent differential plates 110 , and a flue gas flow passage 117 is also formed between the differential plates 110 at the edge of the flow balancing component 100 and the flue wall. The flue gas is blocked by the spoiler 112 during its flow, thereby changing the flow direction of part of the flue gas and increasing the complexity of the flue gas flow. At the same time, due to the existence of the through hole 111, the flue gas between two adjacent flue gas flow passages 117 can flow in series with each other. The series flow of smoke makes the flow direction of the smoke in the flue gas flow passage 117 more complicated. In addition, the edge of the through hole 111 also blocks the flue gas flow velocity, which also increases the complexity of the flue gas flow, so that the smoke in the flue gas flow passage 117 can be fully mixed and the flow field is homogenized. The dust particles in the flue gas are more evenly distributed, and the dust particles can be more easily charged and negatively charged. In addition, since the differential plate 110 has an angle with the direction of smoke exhaust from the flue, the spoiler area of ​​the differential plate 110 is increased over a limited length, thereby increasing the flow balancing time of the flue gas in the flow balancing component 100, better homogenizing the flow field, and the dust particles in the flue gas are more evenly distributed, and the dust particles are more easily charged and negatively charged.

[0046] The flow balancing component 100 may be perpendicular to the direction of the smoke, or may be at a certain angle to the direction of the smoke.

[0047] In this embodiment, the dust flow equalization device further includes a plurality of porous plates 200 intercepted in the flue, the plurality of porous plates 200 are arranged in sequence along the exhaust direction of the flue, and the flow equalization component 100 is arranged between two of the porous plates 200. The front end of the flue is trumpet-shaped with a small front and a large back, and accordingly, the size of the plurality of porous plates 200 gradually increases from the front to the back.

[0048] With such arrangement, the porous plate 200 at the front end of the flow equalizing component 100 pre-equalizes the flue gas, so that the flue gas entering the flow equalizing component 100 is initially equalized, thereby improving the flow equalization effect of the dust flow equalization device. At the same time, a porous plate 200 is also provided at the rear end of the flow equalizing component 100 to equalize the flue gas passing through the flow equalizing component 100 again, thereby further improving the flow equalization effect of the dust flow equalization device.

[0049] In this embodiment, the through holes 111 on the differential plate 110 are preferably arranged in multiple rows in the vertical direction, and the spoilers 112 are correspondingly arranged in multiple rows, and the protrusion directions of two adjacent spoilers 112 in the same row are opposite. Exemplarily, the differential plate 110 is placed vertically, and one of the two adjacent spoilers 112 protrudes to the left side of the differential plate 110, and the other spoiler 112 protrudes to the right side of the differential plate 110.

[0050] With such arrangement, on the one hand, both sides of the differential plate 110 are provided with spoilers 112, and the flue gas on both sides of the differential plate 110 will change its flow direction after passing through the spoilers 112, thereby improving the effect of homogenizing the flow field of the flue gas on both sides of the differential plate 110; on the other hand, the staggered arrangement of the spoilers 112 provides a longer distance between the flue gas whose flow direction is changed and the next spoiler 112, so that the flue gas whose flow direction is changed can have sufficient time to rotate before being disturbed by the next disturbance, which is more conducive to the aggregation of fine dust into large particles, as well as the sufficient mixing of the flue gas and the homogenization of the flow field, so as to facilitate the dust collection of the rear-end dust collecting device.

[0051] More preferably in this embodiment, two adjacent rows of through holes 111 are arranged alternately.

[0052] With this arrangement, smoke at different heights produces different flow phenomena, causing two adjacent smoke streams to influence each other, thereby better homogenizing the flow field.

[0053] In another preferred embodiment, the flow balancing component 100 includes an air inlet side and an air outlet side, the smoke enters the flow balancing component 100 from the air inlet side and is discharged from the air outlet side, and the spoiler 112 is arranged at one end of the through hole 111 close to the air outlet side.

[0054] With such arrangement, the flue gas is blocked and guided by the spoiler 112, making it easier for the flue gas to flow into the adjacent flue gas flow duct 117, thereby further increasing the complexity of the flue gas flow in the flue gas flow duct 117, thereby better homogenizing the flow field, and at the same time, further increasing the probability of the formation of large-particle dust clusters, which is beneficial to the dust collection of the rear-end dust collection device.

[0055] In some other embodiments, the spoiler 112 is disposed at one end of the through hole 111 close to the air inlet side.

[0056] With such arrangement, the flue gas on both sides of the flue gas flow duct 117 close to different differential plates 110 is blocked and guided by the spoiler 112, and the flue gas on both sides of the flue gas flow duct 117 is more easily guided to the central area of ​​the flue gas flow, and combined with the flue gas flowing through the adjacent flue gas flow duct 117, the complexity of the flue gas flow in the flue gas flow duct 117 is further increased, thereby better homogenizing the flow field and, at the same time, further increasing the probability of the formation of large-particle dust clusters, which is beneficial to the dust collection of the rear-end dust collecting device.

[0057] In some other embodiments, part of the spoiler 112 is disposed at one end of the through hole 111 close to the air outlet side, and the other part of the spoiler 112 is disposed at one end of the through hole 111 close to the air inlet side.

[0058] Such an arrangement enables the flue gas flow duct 117 in different areas to have different movement trends, thereby further increasing the complexity of the flue gas flow in the flue gas flow duct 117, thereby better homogenizing the flow field, and at the same time, further increasing the probability of the formation of large-particle dust clusters, so as to facilitate the dust collection of the rear-end dust collection device.

[0059] In another preferred embodiment, the through hole 111 and the spoiler 112 are integrally formed on the differential plate 110 by stamping.

[0060] With such configuration, the processing of the differential plate 110 is simpler, the cost of the current balancing component 100 is lower, and the economic benefit is higher.

[0061] In another preferred embodiment, the spoiler 112 includes a fixed end and a free end. The fixed end is fixed on the differential plate 110. The free end extends from one end of the fixed end in a direction away from the differential plate 110. The width of the spoiler 112 gradually decreases in the direction from the fixed end to the free end.

[0062] With such arrangement, on the one hand, since the widths of the spoiler 112 at different positions are different, the blocking effects of the spoiler 112 on the smoke at different positions are different, so that the smoke produces more complex rotation and movement directions, thereby better homogenizing the flow field; on the other hand, the shape of the spoiler 112 is easier to form through a stamping process, and the cost of the stamping mold is lower, which further simplifies the processing of the differential plate 110 and reduces the cost of the flow equalizing component 100.

[0063] In another preferred embodiment, the differential plate 110 includes a first differential plate portion 113, a second differential plate portion 114, a third differential plate portion 115 and a fourth differential plate portion 116 arranged in sequence along the flue gas direction, and two adjacent differential plate 110 portions are mirrored to form the differential plate 110 in a W shape.

[0064] In this way, four differential plates 110 are arranged, and at the same time, two adjacent differential plates 110 are arranged in a mirror image so that the differential plates 110 form a W shape, and the flue gas flow channel 117 is also W-shaped accordingly. The flue gas undergoes multiple directional changes during the flow channel process, and the changes in this direction further increase the complexity of the flue gas flow, thereby better equalizing the process; at the same time, the W-shaped differential plate 110 makes a single differential plate 110 occupy a smaller space, thereby improving the compactness of the flow equalizing component 100; and, it avoids the need to additionally set up small-sized differential plates 110 on both sides of the flow equalizing component 100 due to insufficient space, thereby further reducing the cost of the flow equalizing component 100.

[0065] More preferably, the first differential plate portion 113 , the second differential plate portion 114 , the third differential plate portion 115 and the fourth differential plate portion 116 are sequentially connected, and the differential plate 110 is bent and integrally formed into a W shape.

[0066] With such configuration, the differential plate 110 can be bent into shape by a bending machine, thereby avoiding the need for the first differential plate portion 113 , the second differential plate portion 114 , the third differential plate portion 115 and the fourth differential plate portion 116 to be welded to each other or fixed mechanically, thereby reducing the cost of the differential plate 110 and the current equalizing assembly 100 .

[0067] In another preferred embodiment, the plurality of differential boards 110 include a plurality of differential boards 110 installed on the left side of the frame 120 and a plurality of differential boards 110 installed on the right side of the frame 120, and the differential boards 110 on the left and right sides are arranged in a mirror image.

[0068] Such an arrangement can make the resistance to smoke flow on both sides of the smoke duct basically consistent, so that the airflow load in the smoke duct remains roughly relatively balanced, optimize the path of the smoke flow through the differential plate 110, reduce the dead corners of the smoke flow, make the smoke more homogenized, and enable the dust in the smoke to be better charged.

[0069] Embodiment 2:

[0070] Based on Example 1, Figure 1 As shown, in the present embodiment, the dust flow equalizing device also includes a vibrating device 300, a limiting bracket 400 is installed at the front end of the flue, the limiting bracket 400 is arranged on the left and right sides of the front end of the flue, and the frame 120 can slide up and down relative to the limiting bracket 400, and the vibrating device 300 includes a bracket 310, a reciprocating motor 320 and a vibrating beam 330, the reciprocating motor 320 is installed on the wall of the flue through the bracket 310, the vibrating beam 330 is fixedly connected to the output end shaft of the reciprocating motor 320, the flow equalizing component 100 is fixed on the vibrating beam 330, and the vibrating device 300 drives the flow equalizing component 100 to move to shake off the captured dust.

[0071] In this arrangement, since the flow balancing component 100 has a large surface area, it is inevitable that dust will be captured on the differential plate 110 during the flow balancing process. By providing the rapping device 300, the dust captured on the flow balancing component 100 can be shaken off to maintain the effect of the homogenized flow field of the flow balancing component 100. At the same time, since the rear end of the flow balancing component 100 is provided with a porous plate 200, the secondary dust in the deashing process of the flow balancing component 100 can also be charged after being mixed in the flue gas when passing through the porous plate 200 at the rear end, thereby avoiding a significant increase in the dust content in the flue gas discharged from the flue during the deashing process of the flow balancing component 100.

[0072] The vibration beam 330 includes a cross beam 331 and a suspension beam 332 . The output shaft of the reciprocating motor 320 is fixedly connected to the cross beam 331 . The cross beam 331 is fixedly connected to the suspension beam 332 . One end of the differential plate 110 is fixed on the suspension beam 332 .

[0073] It should be noted that since a porous plate 200 is provided at the rear end, the fine dust flow equalization device can perform vibration dust removal when the unit is running. The secondary dust generated by the dust removal is evenly distributed and charged through the porous plate 200 at the rear end, and then collected by the positively charged dust collecting mechanism at the rear end.

[0074] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes but is not limited to the contents described in the drawings and the above specific implementation. Any modification that does not deviate from the functional and structural principles of the utility model will be included in the scope of the claims.

Claims

1. A dust flow equalization device at the front end of a flue, installed at the front end of the flue, used to equalize the dust in the flue gas, characterized in that: The dust flow balancing device is placed in the electrostatic field at the front end of the flue, and the dust flow balancing device includes a flow balancing component intercepted in the flue, and the flow balancing component includes a plurality of differential plates and a frame, and the plurality of differential plates are fixed on the frame in sequence and at intervals, and the differential plate has an angle with the direction of smoke exhaust from the flue, and the differential plate is provided with a plurality of through holes and some spoiler sheets, and the spoiler sheet protrudes from one end of the through hole in a direction away from the differential plate to interfere with the flow of part of the smoke.

2. A dust flow balancing device at the front end of a flue as claimed in claim 1, characterized in that: The through holes are arranged in a plurality of rows in the vertical direction of the differential plate, and the spoilers are arranged in a plurality of rows accordingly, and the protrusion directions of two adjacent spoilers in the same row are opposite.

3. A dust flow balancing device at the front end of a flue as claimed in claim 2, characterized in that: The through holes in two adjacent rows are arranged in a staggered manner.

4. A dust flow balancing device at the front end of a flue as claimed in claim 1, characterized in that: The flow balancing component includes an air inlet side and an air outlet side, and the spoiler is arranged on a side of the through hole close to the air outlet side; or, The spoiler is arranged at one end of the through hole close to the air inlet side; or, Part of the spoiler is arranged on a side of the through hole close to the air outlet side, and the other part of the spoiler is arranged on an end of the through hole close to the air inlet side.

5. The dust flow balancing device at the front end of a flue as claimed in claim 1, characterized in that: The through hole and the spoiler are integrally formed on the differential plate by stamping.

6. A dust flow balancing device at the front end of a flue as claimed in claim 1, characterized in that: The spoiler includes a fixed end and a free end, the fixed end is fixed to the differential plate, the free end gradually extends from the fixed end in a direction away from the differential plate, and the width of the spoiler gradually decreases in the direction from the fixed end to the free end.

7. A dust flow balancing device at the front end of a flue as claimed in claim 1, characterized in that: The differential plate includes a first differential plate portion, a second differential plate portion, a third differential plate portion and a fourth differential plate portion arranged in sequence along the airflow direction, two adjacent differential plate portions are mirror-arranged so that the differential plate forms a W shape, the first differential plate portion, the second differential plate portion, the third differential plate portion and the fourth differential plate portion are connected in sequence, and the differential plate is bent and formed into a W shape.

8. A dust flow balancing device at the front end of a flue as claimed in claim 1, characterized in that: The plurality of differential boards include a plurality of differential boards installed on the left side of the frame and a plurality of differential boards installed on the right side of the frame, and the differential boards on the left and right sides are arranged in a mirror image.

9. A dust flow balancing device at the front end of a flue as claimed in claim 1, characterized in that: The dust flow balancing device also includes a plurality of porous plates intercepted in the flue, the plurality of porous plates are arranged in sequence along the smoke exhaust direction of the flue, and the flow balancing component is arranged between two of the porous plates.

10. A dust flow balancing device at the front end of a flue as claimed in claim 9, characterized in that: The dust flow balancing device also includes a vibrating device. A limiting bracket is installed at the front end of the flue. The limiting bracket is arranged on the left and right sides of the front end of the flue. The frame slides up and down along the limiting bracket. The vibrating device includes a bracket, a reciprocating motor and a vibrating beam. The reciprocating motor is fixed to the wall of the flue through the bracket. The vibrating beam is fixedly connected to the output shaft of the reciprocating motor. The flow balancing component is fixed on the vibrating beam. The operation of the reciprocating motor drives the flow balancing component to move to shake off the dust thereon.

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