Pattern plate mounting structure and dust remover

Abstract

The invention relates to the technical field of filtering devices for separating dispersion particles from gas, in particular to a flower plate mounting structure and a dust remover. According to the tubesheet mounting structure, the original connecting mode that the tubesheet is directly welded and connected to the dust remover shell is changed, the tubesheet support and the tubesheet pressing piece are matched with each other to limit the height position of the tubesheet, and meanwhile, a floating gap is reserved between the tubesheet and the dust remover shell; and the sealing connection between the edge of the tubesheet and the dust remover shell is realized by adopting the sealing connecting piece, so that the dust removal effect on the flue gas is ensured. As a whole, the tubesheet mounting structure provided by the invention can be applied to high-temperature dust removal by providing a floating gap for the tubesheet while ensuring sealing, and the problems of weld seam tearing and poor sealing caused by direct welding of the tubesheet and a dust remover shell are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of filtering devices for separating dispersed particles from gas, and in particular to a flower plate mounting structure and a dust collector. Background Art

[0002] The dust collector plate is also called the dust collector porous plate. It is an important part of the dust collector. It is a porous steel partition mainly used to install filter devices such as dust bags or ceramic filter tubes. In order to prevent smoke leakage and ensure that 100% of the smoke passes through the filter device, sealing measures must be taken between the plate and the box.

[0003] In traditional bag dust collectors, the flower plate and the supporting parts in the box are usually sealed and welded. During the commissioning process, the flower plate and the box expand due to heat, and when the machine is shut down for maintenance, the flower plate and the box cool down and shrink, which causes thermal expansion and contraction between the flower plate and the box. Because the operating temperature of traditional bag dust collectors is usually not high (low temperature type ≤130℃, medium temperature type 130℃-200℃), the thermal expansion and contraction is limited, and usually there is no big problem. However, in recent years, high-temperature dust removal (≥200℃) technology has begun to rise and gradually replaced traditional bag dust removal in some industries. The thermal expansion and contraction of high-temperature dust collectors is large. If the traditional flower plate sealing structure is used, it may cause the welds around the flower plate to tear or the flower plate to deform locally over time, affecting the flue gas treatment effect. Summary of the invention

[0004] The purpose of the present invention is to provide a flower plate installation structure to solve the problem that the flower plate in the existing dust collector is directly welded to the dust collector shell, and when used for high-temperature dust removal, the welding position is torn due to large thermal expansion and contraction, thereby affecting the flue gas treatment effect.

[0005] At the same time, the purpose of the present invention is also to provide a dust collector to solve the problem that when the existing dust collector is used for high-temperature flue gas dust removal, the weld between the flower plate and the dust collector shell is easily torn, thereby affecting the flue gas filtering effect.

[0006] The flower panel mounting structure of the present invention includes a flower panel support fixed to the inner side of a dust collector shell, the flower panel support has a supporting plane, the flower panel is placed flat on the supporting plane, and also includes a flower panel pressing piece fixed to the dust collector shell, the flower panel pressing piece is located above the flower panel support and is used to constrain the flower panel to the upper surface of the flower panel support, a floating gap is reserved between the edge of the flower panel and the dust collector shell to compensate for the thermal expansion and contraction of the flower panel, and a sealing connector is also connected between the dust collector shell and the edge of the flower panel, the sealing connector is a flexible connector or an elastic connector to compensate for the floating of the edge of the flower panel in the direction of the board surface when the flower panel expands and contracts due to thermal expansion and contraction.

[0007] The present invention provides a new flower plate installation structure, which changes the original connection mode of directly welding the flower plate to the dust collector housing, adopts the flower plate support and the flower plate pressing piece to cooperate with each other to limit the height position of the flower plate, and at the same time, a floating gap is reserved between the flower plate and the dust collector housing, and a sealing connection is adopted to achieve a sealed connection between the edge of the flower plate and the dust collector housing to ensure the dust removal effect on the flue gas. Overall, the flower plate installation structure of the present invention can be applied to high-temperature dust removal by providing a floating gap for the flower plate while ensuring sealing, avoiding the problems of weld tearing and poor sealing caused by direct welding of the flower plate and the dust collector housing.

[0008] Furthermore, the inner extension of the lower pressing surface of the flower plate pressing member for restraining the flower plate is smaller than the inner extension of the supporting plane, and the sealing connector is arranged above the flower plate pressing member and covers the flower plate pressing member inside. This arrangement enables the supporting plane to have a sufficient supporting width, while minimizing the space occupied by the sealing connector inside the dust collector housing, and minimizing the interference generated when installing the filter element.

[0009] Furthermore, the sealing connector is a sealing plate extending along the edge of the flower plate, and the two edges of the sealing plate are fully welded to the dust collector shell and the edge of the flower plate respectively. The sealing plate relies on its own elastic deformation to compensate for the floating of the edge of the flower plate in the direction of the plate surface when the flower plate expands and contracts. The use of a metal sealing plate with a certain elastic deformation ability and a fully welded connection between the flower plate and the dust collector shell to achieve sealing can adapt to high temperature environments, and the sealing of the sealing connector is more reliable.

[0010] Furthermore, the sealing plate is a bent plate with a "7"-shaped cross section, the flat folded edge of the bent plate is fully welded to the inner wall of the dust collector shell, the vertical edge of the bent plate is fully welded to the edge of the flower plate, and the horizontal edge length of the bent plate is less than the vertical edge length. Using a bent plate as a sealing plate can improve the elastic deformation capacity of the sealing plate through the bending part, and at the same time, the horizontal edge length of the bent plate is less than the vertical edge length, which optimizes the deformation capacity of the bent plate in the direction of the flower plate surface and avoids tearing at the welding positions of the two edges of the sealing plate during the thermal expansion and contraction of the flower plate.

[0011] Furthermore, the length of the vertical side is between 2-3 times the length of the horizontal side, which can improve the deformation capacity of the bent plate, avoid the stress generated by thermal expansion and contraction of the edge of the bent plate from concentrating on the welding position, and reduce the risk of tearing at the welding position.

[0012] Furthermore, the connection position between the vertical edge and the flower plate is located inside the flower plate pressing member and is close to the flower plate pressing member, and the connection position between the vertical edge and the flower plate is directly above the support plane. The flower plate is not easily warped and deformed due to the constraints of the support plane and the flower plate pressing member at the position near the flower plate pressing member, and the vertical edge is connected at this position, which can avoid the tearing of the welding position when the flower plate is warped and deformed due to heat or pressure from the filter element.

[0013] Furthermore, the flower board pressing member is a flower board pressing block arranged at intervals along the edge of the flower board. The use of the flower board pressing block can not only reliably constrain the flower board, but also reduce the material consumption and simplify the manufacturing difficulty.

[0014] Furthermore, the pressing block is welded to the inner wall of the dust collector housing. Such a connection method has a reliable structure and can adapt to high temperature environments.

[0015] Furthermore, the flower plate support is an angle steel, one side of which is welded to the inner wall of the dust collector housing, and the upper surface of the other side of the angle steel constitutes the support plane. The angle steel is a mature material, which is easy to obtain. It is not only convenient to connect with the dust collector housing, but also can provide reliable support.

[0016] The dust collector of the present invention includes a dust collector shell and a flower panel installed in the dust collector shell. The flower panel is installed in the dust collector shell through a flower panel installation structure. The flower panel installation structure includes a flower panel support fixed to the inner side of the dust collector shell. The flower panel support has a support plane. The flower panel is placed flat on the support plane. It also includes a flower panel pressing piece fixed to the dust collector shell. The flower panel pressing piece is located above the flower panel support and is used to constrain the flower panel to the upper surface of the flower panel support. A floating gap is reserved between the edge of the flower panel and the dust collector shell to compensate for the thermal expansion and contraction of the flower panel. A sealing connector is also connected between the dust collector shell and the edge of the flower panel. The sealing connector is a flexible connector or an elastic connector to compensate for the floating of the edge of the flower panel in the direction of the board surface when the flower panel expands and contracts.

[0017] The present invention improves the existing dust collector, changes the original connection mode of directly welding the flower plate to the dust collector shell, adopts the flower plate support and the flower plate pressing piece to cooperate with each other to limit the height position of the flower plate, and at the same time, a floating gap is reserved between the flower plate and the dust collector shell, and a sealing connection is adopted to achieve a sealed connection between the flower plate edge and the dust collector shell to ensure the dust removal effect on the flue gas. Overall, the flower plate installation structure of the present invention can be applied to high-temperature dust removal by providing a floating gap for the flower plate while ensuring sealing, avoiding the problems of weld tearing and poor sealing caused by direct welding of the flower plate and the dust collector shell.

[0018] Furthermore, the inner extension of the lower pressing surface of the flower plate pressing member for restraining the flower plate is smaller than the inner extension of the supporting plane, and the sealing connector is arranged above the flower plate pressing member and covers the flower plate pressing member inside. This arrangement enables the supporting plane to have a sufficient supporting width, while minimizing the space occupied by the sealing connector inside the dust collector housing, and minimizing the interference generated when installing the filter element.

[0019] Furthermore, the sealing connector is a sealing plate extending along the edge of the flower plate, and the two edges of the sealing plate are fully welded to the dust collector shell and the edge of the flower plate respectively. The sealing plate relies on its own elastic deformation to compensate for the floating of the edge of the flower plate in the direction of the plate surface when the flower plate expands and contracts. The use of a metal sealing plate with a certain elastic deformation ability and a fully welded connection between the flower plate and the dust collector shell to achieve sealing can adapt to high temperature environments, and the sealing of the sealing connector is more reliable.

[0020] Furthermore, the sealing plate is a bent plate with a "7"-shaped cross section, the flat folded edge of the bent plate is fully welded to the inner wall of the dust collector shell, the vertical edge of the bent plate is fully welded to the edge of the flower plate, and the horizontal edge length of the bent plate is less than the vertical edge length. Using a bent plate as a sealing plate can improve the elastic deformation capacity of the sealing plate through the bending part, and at the same time, the horizontal edge length of the bent plate is less than the vertical edge length, which optimizes the deformation capacity of the bent plate in the direction of the flower plate surface and avoids tearing at the welding positions of the two edges of the sealing plate during the thermal expansion and contraction of the flower plate.

[0021] Furthermore, the length of the vertical side is between 2-3 times the length of the horizontal side, which can improve the deformation capacity of the bent plate, avoid the stress generated by thermal expansion and contraction of the edge of the bent plate from concentrating on the welding position, and reduce the risk of tearing at the welding position.

[0022] Furthermore, the connection position between the vertical edge and the flower plate is located inside the flower plate pressing member and is close to the flower plate pressing member, and the connection position between the vertical edge and the flower plate is directly above the support plane. The flower plate is not easily warped and deformed due to the constraints of the support plane and the flower plate pressing member at the position near the flower plate pressing member, and the vertical edge is connected at this position, which can avoid the tearing of the welding position when the flower plate is warped and deformed due to heat or pressure from the filter element.

[0023] Furthermore, the flower board pressing member is a flower board pressing block arranged at intervals along the edge of the flower board. The use of the flower board pressing block can not only reliably constrain the flower board, but also reduce the material consumption and simplify the manufacturing difficulty.

[0024] Furthermore, the pressing block is welded to the inner wall of the dust collector housing. Such a connection method has a reliable structure and can adapt to high temperature environments.

[0025] Furthermore, the flower plate support is an angle steel, one side of which is welded to the inner wall of the dust collector housing, and the upper surface of the other side of the angle steel constitutes the support plane. The angle steel is a mature material, which is easy to obtain. It is not only convenient to connect with the dust collector housing, but also can provide reliable support. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A top view showing the installation connection relationship between the flower plate and the dust collector housing in the first embodiment of the dust collector of the present invention (the sealing connection piece is omitted);

[0027] Figure 2 for Figure 1 A cross-sectional view of the flower plate at the location of the lower pressure piece.

[0028] In the figure: 1. dust collector housing; 2. flower plate; 3. flower plate support; 4. flower plate pressing piece; 5. sealing connector; 9. floating gap. DETAILED DESCRIPTION

[0029] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0030] Embodiment 1 of the dust collector of the present invention:

[0031] The dust collector of this embodiment includes a dust collector housing 1 and a flower plate 2 installed in the dust collector housing 1. The flower plate 2 is provided with a large number of flower plate 2 holes for installing a filter element. The upper side of the flower plate 2 forms a clean air chamber, and the lower side of the flower plate 2 is a smoke chamber. The flower plate 2 is installed inside the dust collector housing 1 through a flower plate installation structure.

[0032] Specifically, the flower plate installation structure is as follows Figure 1-2 As shown, it includes a flower plate support 3, which is fixed to the inner side of the dust collector housing 1 and has a horizontal support plane, and is mainly used to support the flower plate 2. When installed, the flower plate 2 is placed inside the dust collector housing 1 as a whole and the edge position is flat and overlapped with the support plane. Figure 2 It can be clearly seen that the flower plate support 3 in this embodiment is made of angle steel, one side of which is attached to the dust collector housing 1 and welded to the dust collector housing 1, and the other side is horizontally cantilevered on the inner side of the dust collector housing 1, and its upper surface constitutes a supporting plane.

[0033] The overall size of the flower plate 2 is slightly smaller than the inner cavity of the dust collector housing 1. When it is placed on the flower plate support 3, there is a certain gap between each edge and the side wall of the dust collector housing 1, which constitutes a floating gap 9 for the edge when it expands and contracts. A flower plate pressing piece 4 is fixedly connected to the inner wall of the dust collector housing 1 on the upper side of the flower plate 2 to press the flower plate 2 on the flower plate support 3 to limit its movement in the up and down directions. Figure 1 and 2It can be seen that the flower plate lower pressing piece 4 is a pressing block, which is welded to the inner side of the dust collector housing 1, and the lower side is pressed on the upper surface of the flower plate 2. The lower surface of the pressing block is parallel to the supporting plane, and the gap between the two just accommodates the flower plate 2. When the flower plate 2 expands and contracts with heat, its edge can slide horizontally relative to the pressing block. Of course, the pressing block can also be connected to the inner wall of the dust collector housing 1 through a bolt connector.

[0034] In addition, in order to ensure complete sealing between the edge of the flower plate and the dust collector housing 1, a sealing connector 5 is provided between the edge of the flower plate and the dust collector housing 1. The sealing connector 5 is a long member extending along the edge of the flower plate. Figure 2 As shown, a "7"-shaped bent plate is also provided above the flower plate 2, and the bent plate constitutes a so-called sealing connector 5. The edge of the horizontal side of the bent plate is fully welded to the dust collector housing 1 (A in the figure) to ensure sealing, and the edge of the vertical side of the bent plate is fully welded to the flower plate 2 (B in the figure) to ensure sealing. The sealing connector 5 covers the floating gap 9 between the flower plate 2 and the dust collector housing 1 and the flower plate pressing piece 4 inside, thereby achieving sealing isolation between the clean air chamber and the smoke chamber.

[0035] The sealing connector 5 is arranged on the upper side of the flower plate 2 and the pressing block mainly due to the following considerations. First, the inner extension of the pressing block, that is, the length extending inward from the inner wall of the dust collector housing 1, is less than the inner extension of the supporting plane. This reduces the size of the pressing block while ensuring the reliable support of the supporting plane, thereby avoiding the reduction of the space above the flower plate 2 and affecting the installation of the filter element. In this way, the sealing connector 5 is arranged on the upper side of the flower plate 2 to balance the space occupied by the upper and lower structures of the flower plate 2 in the dust collector housing 1; in addition, the connection position of the vertical edge with the flower plate 2 is located on the inner side of the flower plate lower pressing piece 4 and is arranged close to the flower plate lower pressing piece 4, and the connection position of the vertical edge with the flower plate 2 is directly above the supporting plane. In this way, the position of the flower plate 2 near the flower plate lower pressing piece 4 is constrained by the supporting plane and the flower plate lower pressing piece 4 and is not prone to warping and deformation. The vertical edge is connected at this position, which can avoid the tearing of the welding position when the flower plate 2 is warped and deformed due to heat or pressure from the filter element.

[0036] It should be noted that although a metal bent plate is used to realize the welding connection between the dust collector housing 1 and the flower plate 2, it does not affect the horizontal floating of the edge position of the flower plate 2 during thermal expansion and contraction, because although the metal plate is a rigid part, it has a certain elastic deformation ability based on its extended length factor, and is actually an elastic connector. Specifically, the sealing connection is achieved by the bent plate, and the bent plate has a certain elastic deformation ability at the bent position, which can compensate for the floating of the edge of the flower plate through the elastic deformation of the bent position. Secondly, the size of the vertical side of the bent plate in this embodiment is larger than the size of the horizontal side. In this way, the elastic deformation ability of the longer vertical side in the horizontal direction can provide floating compensation for the edge of the flower plate in the horizontal direction. Preferably, in this embodiment, the length of the vertical side is in the range of 2-3 times the length of the horizontal side.

[0037] From the above introduction to Example 1, it can be seen that the dust collector of the present invention can achieve reliable sealing between the flower plate 2 and the dust collector housing 1 through the new flower plate installation structure, thereby preventing smoke from leaking into the clean air chamber. At the same time, a floating gap 9 is reserved between the flower plate 2 and the dust collector housing 1. When used in a high-temperature dust removal environment, the flower plate 2 expands and contracts due to thermal expansion and contraction, causing the edge position to float horizontally. There is a floating gap 9, which will not cause welding tearing problems, thereby ensuring the sealing effect.

[0038] Of course, the dust collector of the present invention is not limited to the embodiments described above, and other modified embodiments based on the design concept of the present invention are also provided below.

[0039] For example, in other embodiments, different from the first embodiment described above, the flower plate support in this embodiment adopts a square steel structure, one side of the square steel is welded to the dust collector shell, and the top horizontal plane constitutes a supporting plane; or a long narrow steel plate can be used as a flower plate support, one side of the long narrow steel plate in the width direction is directly welded to the dust collector shell and cantilevered to the inside of the dust collector shell.

[0040] For example, in other embodiments, different from the first embodiment described above, the flower board pressing piece adopts a long condition, similar to the flower board support, and applies pressure to the flower board along the entire edge of the flower board correspondingly up and down. Specifically, angle steels that are symmetrically arranged up and down with respect to the horizontal plane with the flower board support can be used.

[0041] For another example, in other embodiments, different from the first embodiment described above, the sealing connector is a flexible connector, such as a high-temperature resistant rubber strip, one side of the rubber strip in the width direction is pressed against the inner wall of the dust collector shell through a threaded connector and a metal strip, and the other side of the rubber strip in the width direction is pressed against the edge of the flower plate through a threaded connector and a metal strip, thereby achieving a sealed connection with the two.

[0042] For another example, in other embodiments, different from the first embodiment described above, the sealing connector can also be arranged on the lower side of the flower plate, so that one side of the sealing connector is sealed to the edge of the flower plate, and the other side is sealed to the inner wall of the dust collector shell, and the sealing connector supports the flower plate and seals it inside.

[0043] Alternatively, in other embodiments, different from the first embodiment described above, the sealing connector is a long strip with an arc-shaped cross section, one side of the long strip is welded to the dust collector housing, and the other side is welded to the flower plate, and the distance change between the compensation guard plate and the dust collector housing is achieved by arc extension and retraction. Of course, in other embodiments, it is not excluded that the sealing connector is a long strip obliquely connected between the dust collector housing and the flower plate.

[0044] An embodiment of the flower plate mounting structure of the present invention: Its specific structure is the same as the flower plate mounting structure in the embodiment of the dust collector introduced above, and will not be repeated here.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the contents of the description and drawings of the present invention should also be included in the protection scope of the present invention.

Claims

1. A flower plate installation structure, characterized in that: The invention comprises a flower plate support (3) fixed to the inner side of a dust collector housing (1), the flower plate support (3) having a support plane, the flower plate (2) being placed flat on the support plane, and a flower plate pressing member (4) fixed to the dust collector housing (1), the flower plate pressing member (4) being located above the flower plate support (3) and being used to constrain the flower plate (2) to the upper surface of the flower plate support (3), a floating gap (9) being reserved between the edge of the flower plate (2) and the dust collector housing (1) to compensate for thermal expansion and contraction of the flower plate (2), and a sealing connector (5) being connected between the dust collector housing (1) and the edge of the flower plate (2), the sealing connector (5) being a flexible connector or an elastic connector to compensate for the floating of the edge of the flower plate in the direction of the plate surface when the flower plate (2) expands and contracts.

2. The flower plate installation structure according to claim 1 is characterized in that: The inner extension of the lower pressing surface of the flower plate lower pressing piece (4) for restraining the flower plate (2) is smaller than the inner extension of the supporting plane, and the sealing connection piece (5) is arranged above the flower plate lower pressing piece (4) and covers the flower plate lower pressing piece (4) inside.

3. The flower plate installation structure according to claim 2 is characterized in that: The sealing connector (5) is a sealing plate extending along the edge of the flower plate. The two edges of the sealing plate are fully welded to the dust collector housing (1) and the edge of the flower plate respectively. The sealing plate compensates for the floating of the edge of the flower plate in the direction of the plate surface when the flower plate (2) expands and contracts due to heat and cold by its own elastic deformation.

4. The flower plate installation structure according to claim 3 is characterized in that: The sealing plate is a bent plate with a "7"-shaped cross section, the flat folded edge of the bent plate is fully welded to the inner wall of the dust collector housing (1), the vertical edge of the bent plate is fully welded to the edge of the flower plate, and the length of the horizontal edge of the bent plate is shorter than the length of the vertical edge.

5. The flower plate installation structure according to claim 4 is characterized in that: The length of the vertical side is between 2 and 3 times the length of the horizontal side.

6. The flower plate installation structure according to claim 4 is characterized in that: The connection position between the vertical edge and the flower plate (2) is located inside the flower plate pressing member (4) and is arranged close to the flower plate pressing member (4), and the connection position between the vertical edge and the flower plate (2) is located directly above the supporting plane.

7. The flower plate installation structure according to any one of claims 1 to 6, characterized in that: The flower board pressing pieces (4) are flower board (2) pressing blocks arranged at intervals along the edge of the flower board.

8. The flower plate installation structure according to claim 7 is characterized in that: The pressing block is welded to the inner wall of the dust collector housing (1).

9. The flower plate installation structure according to any one of claims 1 to 6, characterized in that: The flower plate support (3) is an angle steel, one side of which is in contact with the inner wall of the dust collector housing (1) and is fully welded, and the upper surface of the other side of the angle steel constitutes the support plane.

10. A dust collector, comprising a dust collector housing (1) and a flower plate (2) installed in the dust collector housing (1), characterized in that: The flower plate (2) and the dust collector housing (1) are installed together using a flower plate installation structure as described in any one of claims 1 to 9.

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