Multi-layer vertical multi-pipe cyclone separator

Abstract

When the multi-layer vertical multi-pipe cyclone separator is used, dust-containing gas enters from the upper end of the gas inlet pipe, and dust particles with larger diameters fall into the lower end of the gas inlet pipe under the action of gravity settling and enter a dust hopper through a connecting pipe; a part of gas enters the space between the first upper partition plate and the first lower partition plate through the first gas inlet and then enters the first gas inlet, clean gas obtained through separation is discharged from the first gas outlet and enters the upper end of the gas outlet pipe through the first exhaust pipe, and dust obtained through separation is discharged from the first dust outlet. And the remaining gas enters the space between the second upper partition plate and the second lower partition plate through the second gas inlet and then enters the second gas inlet, the separated clean gas is discharged from the second gas outlet and enters the upper end of the gas outlet pipe through the second exhaust pipe, and the separated dust is discharged from the second dust outlet. The device can be suitable for large gas treatment amount, and is good in separation effect, beneficial to dust discharge, compact and stable in structure and small in occupied area.

Description

Technical Field

[0001] The utility model relates to the technical field of cyclone dust removal, in particular to the technical field of multi-tube cyclone separators, specifically to a multi-layer vertical multi-tube cyclone separator. Background Art

[0002] A multi-cyclone separator is a cyclone separator that connects several cyclones in parallel. Its dust removal mechanism is to make the dust-laden airflow rotate, and with the help of centrifugal force, the dust particles are separated from the airflow and captured on the wall of the device, and then the dust particles are dropped into the ash hopper with the help of gravity. Multi-cyclone separators have been widely used in many industries such as petrochemical industry, coal-fired power generation, environmental protection and natural gas purification due to their advantages of high separation efficiency, compact structure and low operating cost. At present, the multi-cyclone separators in industrial applications are mostly vertical tube type (cyclones are arranged vertically), but with the development of large-scale equipment, small multi-cyclone separators can no longer meet the working conditions of increasing gas processing volume. It is necessary to increase the number of internal cyclones by continuously increasing the shell diameter of the multi-cyclone separator. For example, for a 2000kt / a heavy oil catalytic cracking unit, the shell diameter of the multi-cyclone three-cyclone unit needs to be more than 8m. Then there are some new problems with super-large diameter multi-cyclone separators:

[0003] 1) Multi-cyclone separators typically have only one air inlet. Due to the arrangement of the cyclones within a multi-cyclone separator, the air intake of cyclones near the inlet and those farther away from the inlet vary significantly. Consequently, there are certain differences in pressure drop between the cyclones, which can exacerbate crossflow and back-mixing between the cyclones. This significantly reduces the overall separation efficiency of the multi-cyclone separator compared to a single-cyclone separator. For example, a high-efficiency multi-cyclone dust collector disclosed in a Chinese utility model patent (Granted Announcement No.: CN219462802U) suffers from this problem.

[0004] 2) The increased diameter of the two baffles housing the cyclones increases the loads of gravity, external pressure, and thermal expansion, worsening the stress on the baffles. For example, the baffles of the third-stage multi-cyclone separators in catalytic cracking at many domestic refineries have experienced severe deformation, even rupturing the expansion joints on the riser pipes, significantly reducing the efficiency of the multi-cyclone separators.

[0005] To avoid the above problems, for a large gas handling capacity, multiple small-diameter multi-tube cyclone separators can be operated in parallel. However, this solution not only increases the operating cost but also the maintenance cost. Or the multi-tube cyclone separator can be designed as a horizontal tube type (the cyclone tubes are horizontally arranged), such as a horizontal tube type third-stage cyclone separator disclosed in a Chinese utility model patent (authorization announcement number: CN2526075Y), which belongs to this structure. Although this solution can solve the problem of serious deformation of the partition plate in the vertical tube cyclone separator, the horizontal arrangement of the cyclone tubes is not conducive to dust discharge. For handling dust with poor fluidity, the cyclone tubes are prone to blockage. In addition, it is difficult to install and maintain the cyclone tubes in the horizontal tube type multi-tube cyclone separator, and currently, the industrial application of the horizontal tube type multi-tube cyclone separator is less.

[0006] Therefore, it is desired to provide a multi-tube vertical cyclone separator that can be applicable to a large gas handling capacity, has good separation effect, is conducive to dust discharge, has a compact and stable structure, and occupies a small area. Summary of the Utility Model

[0007] To overcome the above disadvantages in the prior art, an object of the present utility model is to provide a multi-layer vertical multi-tube cyclone separator that can be applicable to a large gas handling capacity, has good separation effect, is conducive to dust discharge, has a compact and stable structure, occupies a small area, and is suitable for large-scale popularization and application.

[0008] Another object of the present utility model is to provide a multi-layer vertical multi-tube cyclone separator that is ingeniously designed, has a simple structure, operates stably, has a low investment cost, and is suitable for large-scale popularization and application.

[0009] To achieve the above object, the present utility model provides a multi-layer vertical multi-tube cyclone separator, including a housing, an air inlet pipe, and an air outlet pipe. The housing is vertically arranged, and a dust discharge port is provided at the bottom of the housing. The feature is that the multi-layer vertical multi-tube cyclone separator further includes a first separation component, a second separation component, a dust hopper, and a connecting pipe, wherein:

[0010] The air inlet pipe is vertically arranged and located inside the housing. The upper end of the air inlet pipe is vertically inserted into the central position at the top of the housing and exposes the central position at the top of the housing. The air outlet pipe is located on the side of the housing. The upper end of the air outlet pipe is vertically arranged, and the lower end of the air outlet pipe is an air outlet.

[0011] The first separation component includes a first upper partition plate, a first lower partition plate, a first cyclone, and a first exhaust pipe. The first upper partition plate and the first lower partition plate are both horizontally arranged and spaced apart from each other vertically. The first upper partition plate and the first lower partition plate are both located in the housing, both connected to the side wall of the housing, and both sleeved outside the intake pipe. The first cyclone is vertically arranged and vertically inserted into the first upper partition plate and the first lower partition plate respectively. Thus, the first air inlet of the first cyclone is located between the first upper partition plate and the first lower partition plate, the first air outlet of the first cyclone is located on the first upper partition plate, and the first dust discharge port of the first cyclone is located below the first lower partition plate. The number of the first cyclones is multiple, and the multiple first cyclones are horizontally arranged around the intake pipe at intervals. The first exhaust pipe is located between the side wall of the housing and the upper end of the outlet pipe, and is respectively connected to the side wall of the housing and the upper end of the outlet pipe. The position where the first exhaust pipe is connected to the side wall of the housing is higher than the first upper partition plate;

[0012] The second separation component includes an annular vertical side wall, a second upper partition plate, a second lower partition plate, a partition cover, a second cyclone, a second exhaust pipe, and a connecting piece. The annular vertical side wall is located in the housing and spaced apart from the side wall of the housing. The second upper partition plate and the second lower partition plate are both horizontally arranged and spaced apart from each other vertically. The second upper partition plate and the second lower partition plate are respectively located inside the upper end and the lower end of the annular vertical side wall, respectively connected to the upper end and the lower end of the annular vertical side wall, and both sleeved outside the intake pipe. The second cyclone is vertically arranged and vertically inserted into the second upper partition plate and the second lower partition plate respectively. Thus, the second air inlet of the second cyclone is located between the second upper partition plate and the second lower partition plate, the second air outlet of the second cyclone is located on the second upper partition plate, and the second dust discharge port of the second cyclone is located below the second lower partition plate. The number of the second cyclones is multiple, and the multiple second cyclones are horizontally arranged around the intake pipe at intervals. The partition cover is vertically arranged with a thinner upper end and a thicker lower end. The upper end of the partition cover is sleeved outside the intake pipe, located below the first lower partition plate, and connected to the first lower partition plate. The lower end of the partition cover is arranged on the upper end of the annular vertical side wall to cover the second air outlet of the second cyclone. The connecting piece is located between the lower end of the annular vertical side wall and the side wall of the housing, and is respectively connected to the lower end of the annular vertical side wall and the side wall of the housing. The number of the connecting pieces is multiple, and the multiple connecting pieces are horizontally arranged around the lower end of the annular vertical side wall at intervals. The second exhaust pipe penetrates the side wall of the housing and is located between the side wall of the partition cover and the upper end of the outlet pipe, and is respectively connected to the side wall of the partition cover and the upper end of the outlet pipe;

[0013] The side walls of the intake pipe are respectively provided with a first air inlet hole and a second air inlet hole. The first air inlet hole is located between the first upper partition plate and the first lower partition plate, and the second air inlet hole is located between the second upper partition plate and the second lower partition plate. The number of the first air inlet holes and the number of the second air inlet holes are both multiple. The multiple first air inlet holes and the multiple second air inlet holes are both arranged around the intake pipe and are spaced from each other. The lower end of the intake pipe is located below the second lower partition plate and above the dust discharge port. The ash hopper is vertically arranged outside the housing and below the lower end of the intake pipe. The connecting pipe penetrates through the side wall of the housing and is located between the lower end of the intake pipe and the upper end of the ash hopper and respectively connects the lower end of the intake pipe and the upper end of the ash hopper.

[0014] Preferably, the diameter of the upper end of the outlet pipe gradually increases from top to bottom.

[0015] Preferably, the diameter of the first air inlet hole and the diameter of the second air inlet hole are both 8 mm to 20 mm.

[0016] Preferably, the diameter of the intake pipe gradually decreases from top to bottom.

[0017] Preferably, the number of the first cyclones is the same as the number of the second cyclones.

[0018] Preferably, both the first cyclone and the second cyclone are tangential inlet type cyclones.

[0019] Preferably, the connecting member includes an upper support seat and a lower support seat. The upper support seat is arranged on the lower support seat. The upper support seat and the lower support seat are both located between the lower end of the annular vertical side wall and the side wall of the housing and respectively connect the lower end of the annular vertical side wall and the side wall of the housing.

[0020] Preferably, the number of the second separation components is multiple. The multiple second separation components are vertically arranged in sequence. The upper end of the partition cover of the second separation component located below in two adjacent second separation components vertically is sleeved outside the intake pipe and is located below the second lower partition plate of the second separation component located above and is connected to the second lower partition plate of the second separation component located above. The upper end of the partition cover of the uppermost second separation component is sleeved outside the intake pipe and is located below the first lower partition plate and is connected to the first lower partition plate. The lower end of the intake pipe is located below the second lower partition plate of the lowermost second separation component.

[0021] More preferably, the number of the second separation components is 2.

[0022] Preferably, the multi-layer vertical multi-tube cyclone separator further includes a valve, and the valve is disposed between the connecting pipe and the upper end of the ash hopper.

[0023] The beneficial effects of the present utility model mainly lie in:

[0024] 1. When the multi-layer vertical multi-tube cyclone separator of the present utility model is in use, the dust-containing gas enters from the upper end of the intake pipe. Among them, the dust particles with a larger diameter fall into the lower end of the intake pipe under the action of "gravity sedimentation", and enter the ash hopper through the connecting pipe; a part of the gas enters between the first upper partition plate and the first lower partition plate of the first separation assembly through the first intake hole, and then enters the first intake port of the first cyclone. The clean gas separated is discharged from the first outlet port of the first cyclone, enters the upper end of the outlet pipe through the first exhaust pipe, and the separated dust is discharged from the first dust discharge port of the first cyclone. The remaining part of the gas enters between the second upper partition plate and the second lower partition plate of the second separation assembly through the second intake hole, and then enters the second intake port of the second cyclone. The clean gas separated is discharged from the second outlet port of the second cyclone, enters the upper end of the outlet pipe through the second exhaust pipe, and the separated dust is discharged from the second dust discharge port of the second cyclone. Therefore, it can be applied to a large gas treatment volume, has a good separation effect, is conducive to dust discharge, has a compact and stable structure, occupies a small area, and is suitable for large-scale popularization and application.

[0025] 2. When the multi-layer vertical multi-tube cyclone separator of the present utility model is in use, the dust-containing gas enters from the upper end of the intake pipe. Among them, the dust particles with a larger diameter fall into the lower end of the intake pipe under the action of "gravity sedimentation", and enter the ash hopper through the connecting pipe; a part of the gas enters between the first upper partition plate and the first lower partition plate of the first separation assembly through the first intake hole, and then enters the first intake port of the first cyclone. The clean gas separated is discharged from the first outlet port of the first cyclone, enters the upper end of the outlet pipe through the first exhaust pipe, and the separated dust is discharged from the first dust discharge port of the first cyclone. The remaining part of the gas enters between the second upper partition plate and the second lower partition plate of the second separation assembly through the second intake hole, and then enters the second intake port of the second cyclone. The clean gas separated is discharged from the second outlet port of the second cyclone, enters the upper end of the outlet pipe through the second exhaust pipe, and the separated dust is discharged from the second dust discharge port of the second cyclone. Therefore, it has a clever design, a simple structure, stable operation, a low investment cost, and is suitable for large-scale popularization and application.

[0026] These and other objects, features and advantages of the present utility model are fully embodied by the following detailed description and the accompanying drawings, and can be realized by the means, devices and their combinations specifically pointed out in the utility model content. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1It is a front view sectional view schematic diagram of the first specific embodiment of the multi-layer vertical multi-tube cyclone separator of the present utility model, where the hollow arrow indicates the dust flow direction and the solid arrow indicates the gas flow direction.

[0028] Figure 2 Is Figure 1 A left view schematic diagram of the first cyclone of the first specific embodiment shown.

[0029] Figure 3 Is Figure 1 A right view schematic diagram of the second cyclone of the first specific embodiment shown.

[0030] Figure 4 Is Figure 1 A sectional view schematic diagram at the A-A position in

[0031] Figure 5 It is a front view sectional view schematic diagram of the second specific embodiment of the multi-layer vertical multi-tube cyclone separator of the present utility model, where the hollow arrow indicates the dust flow direction and the solid arrow indicates the gas flow direction.

[0032] (Symbol description)

[0033] 1 Housing; 11 Dust discharge port;

[0034] 2 Inlet pipe; 21 First inlet hole; 22 Second inlet hole;

[0035] 3 Outlet pipe; 31 Outlet;

[0036] 4 First separation component; 41 First upper partition; 42 First lower partition; 43 First cyclone; 44 First exhaust pipe; 45 First inlet; 46 First outlet; 47 First dust discharge port;

[0037] 5 Second separation component; 51 Annular vertical side wall; 52 Second upper partition; 53 Second lower partition; 54 Partition cover; 55 Second cyclone; 56 Second exhaust pipe; 57 Connecting piece; 58 Second inlet; 59 Second outlet; 60 Second dust discharge port; 61 Upper support seat; 62 Lower support seat;

[0038] 6 Ash hopper; 7 Connecting pipe; 8 Valve; 9 Mounting support; 10 Manhole. Specific implementation mode

[0039] In order to be able to more clearly understand the technical content of the present utility model, the following embodiments are specifically described in detail.

[0040] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 construed as a limitation on the present utility model.

[0041] Please refer to Figures 1 to 4 As shown, in the first specific embodiment of the present utility model, the multi-layer vertical multi-tube cyclone separator of the present utility model includes a housing 1, an air inlet pipe 2, an air outlet pipe 3, a first separation assembly 4, a second separation assembly 5, a dust hopper 6 and a connecting pipe 7, wherein:

[0042] The housing 1 is arranged vertically, a dust discharge port 11 is arranged at the bottom of the housing 1, the air inlet pipe 2 is arranged vertically and is located inside the housing 1, the upper end of the air inlet pipe 2 is vertically inserted into the central position at the top of the housing 1 and exposes the central position at the top of the housing 1, the air outlet pipe 3 is located on the side of the housing 1, the upper end of the air outlet pipe 3 is arranged vertically, and the lower end of the air outlet pipe 3 is an air outlet 31;

[0043] The first separation assembly 4 includes a first upper partition 41, a first lower partition 42, a first cyclone 43 and a first exhaust pipe 44. The first upper partition 41 and the first lower partition 42 are both arranged horizontally and spaced from each other up and down. The first upper partition 41 and the first lower partition 42 are both located in the housing 1, both are connected to the side wall of the housing 1, and both are sleeved outside the air inlet pipe 2. The first cyclone 43 is arranged vertically and is respectively vertically inserted into the first upper partition 41 and the first lower partition 42. Thus, the first air inlet 45 of the first cyclone 43 is located between the first upper partition 41 and the first lower partition 42, the first air outlet 46 of the first cyclone 43 is located on the first upper partition 41, the first dust discharge port 47 of the first cyclone 43 is located below the first lower partition 42. The number of the first cyclones 43 is multiple, and the multiple first cyclones 43 are horizontally arranged around the air inlet pipe 2 at intervals. The first exhaust pipe 44 is located between the side wall of the housing 1 and the upper end of the air outlet pipe 3 and is respectively connected to the side wall of the housing 1 and the upper end of the air outlet pipe 3. The position where the first exhaust pipe 44 is connected to the side wall of the housing 1 is higher than the first upper partition 41;

[0044] The second separation component 5 includes an annular vertical side wall 51, a second upper partition plate 52, a second lower partition plate 53, a partition cover 54, a second cyclone 55, a second exhaust pipe 56, and a connecting member 57. The annular vertical side wall 51 is located inside the housing 1 and is spaced apart from the side wall of the housing 1. The second upper partition plate 52 and the second lower partition plate 53 are both horizontally arranged and spaced apart from each other vertically. The second upper partition plate 52 and the second lower partition plate 53 are respectively located inside the upper end and the lower end of the annular vertical side wall 51, respectively connect the upper end and the lower end of the annular vertical side wall 51, and are both sleeved outside the intake pipe 2. The second cyclone 55 is vertically arranged and is respectively vertically inserted into the second upper partition plate 52 and the second lower partition plate 53. Thus, the second air inlet 58 of the second cyclone 55 is located between the second upper partition plate 52 and the second lower partition plate 53, the second air outlet 59 of the second cyclone 55 is located on the second upper partition plate 52, and the second dust discharge port 60 of the second cyclone 55 is located below the second lower partition plate 53. The number of the second cyclones 55 is multiple, and multiple second cyclones 55 are horizontally arranged around the intake pipe 2 at intervals. The partition cover 54 is vertically arranged with a thin upper end and a thick lower end. The upper end of the partition cover 54 is sleeved outside the intake pipe 2, is located below the first lower partition plate 42, and is connected to the first lower partition plate 42. The lower end of the partition cover 54 is arranged on the upper end of the annular vertical side wall 51 to cover the second air outlet 59 of the second cyclone 55. The connecting member 57 is located between the lower end of the annular vertical side wall 51 and the side wall of the housing 1 and respectively connects the lower end of the annular vertical side wall 51 and the side wall of the housing 1. The number of the connecting members 57 is multiple, and multiple connecting members 57 are horizontally arranged around the lower end of the annular vertical side wall 51 at intervals. The second exhaust pipe 56 penetrates the side wall of the housing 1 and is located between the side wall of the partition cover 54 and the upper end of the outlet pipe 3 and respectively connects the side wall of the partition cover 54 and the upper end of the outlet pipe 3;

[0045] The side walls of the intake pipe 2 are respectively provided with a first intake hole 21 and a second intake hole 22. The first intake hole 21 is located between the first upper partition plate 41 and the first lower partition plate 42, and the second intake hole 22 is located between the second upper partition plate 52 and the second lower partition plate 53. The numbers of the first intake holes 21 and the second intake holes 22 are both multiple. The multiple first intake holes 21 and the multiple second intake holes 22 are both arranged around the intake pipe 2 and are spaced from each other. The lower end of the intake pipe 2 is located below the second lower partition plate 53 and above the dust discharge port 11. The ash hopper 6 is vertically arranged outside the housing 1 and below the lower end of the intake pipe 2. The connecting pipe 7 penetrates through the side wall of the housing 1 and is located between the lower end of the intake pipe 2 and the upper end of the ash hopper 6 and respectively connects the lower end of the intake pipe 2 and the upper end of the ash hopper 6.

[0046] The annular vertical side wall 51 can have any suitable shape. In the first specific embodiment of the present invention, the annular vertical side wall 51 is a circular annular vertical side wall.

[0047] The upper end of the outlet pipe 3 can have any suitable shape. Please refer to Figure 1 As shown, in the first specific embodiment of the present invention, the diameter of the upper end of the outlet pipe 3 gradually increases from top to bottom. That is to say, the upper end of the outlet pipe 3 is of a gradually expanding type, that is, as the number of exhaust pipes communicated with the upper end of the outlet pipe 3 increases, the diameter of the upper end of the outlet pipe 3 becomes larger and larger from top to bottom. In this way, it can be ensured that the gas flow velocity at any cross-section inside the upper end of the outlet pipe 3 is equal, and the resistance of the gas entering the upper end of the outlet pipe 3 from each exhaust pipe is equal.

[0048] The diameters of the first intake holes 21 and the second intake holes 22 can be determined as needed. Preferably, the diameters of the first intake holes 21 and the second intake holes 22 are both 8 mm to 20 mm. In the first specific embodiment of the present invention, the diameters of the first intake holes 21 and the second intake holes 22 are both 10 mm.

[0049] The intake pipe 2 can have any suitable shape. Please refer to Figure 1As shown, in the first specific embodiment of the present utility model, the diameter of the intake pipe 2 gradually decreases from top to bottom. That is to say, the intake pipe 2 is a tapered type, that is, as the number of separation components communicated with the intake pipe 2 through the intake holes increases, the diameter of the intake pipe 2 becomes smaller and smaller from top to bottom, so as to ensure that the gas flow velocity at any cross-section in the intake pipe 2 is equal. In addition, the total opening cross-sectional area of the intake holes communicated with any one separation component is designed to be equal, so that the resistance of the gas entering each separation component from the intake pipe 27 is equal, and the amount of gas entering each separation component is almost equal.

[0050] The number of the first cyclones 43 and the number of the second cyclones 55 may be the same or different. In the first specific embodiment of the present utility model, the number of the first cyclones 43 and the number of the second cyclones 55 are the same.

[0051] The number of the first cyclones 43 and the number of the second cyclones 55 can be determined as needed, and appropriate numbers can be selected according to the specific process conditions of the multi-layer vertical multi-tube cyclone separator. The above "multiple" means more than 2. Please refer to Figure 4 As shown, in the first specific embodiment of the present utility model, the number of the first cyclones 43 and the number of the second cyclones 55 are both 24.

[0052] The first cyclones 43 and the second cyclones 55 can be any suitable type of cyclones, such as tangential inlet type cyclones or axial inlet type cyclones. In the first specific embodiment of the present utility model, the first cyclones 43 and the second cyclones 55 are both tangential inlet type cyclones.

[0053] The number of the connecting members 57 can be determined as needed. In the first specific embodiment of the present utility model, the number of the connecting members 57 is 4, and the 4 connecting members 57 are respectively located at the front, rear, left and right of the lower end of the annular vertical side wall 51.

[0054] The connecting members 57 can have any suitable structure. Please refer to Figure 1 As shown, in the first specific embodiment of the present utility model, the connecting member 57 includes an upper support seat 61 and a lower support seat 62. The upper support seat 61 is arranged on the lower support seat 62. Both the upper support seat 61 and the lower support seat 62 are located between the lower end of the annular vertical side wall 51 and the side wall of the housing 1 and are respectively connected to the lower end of the annular vertical side wall 51 and the side wall of the housing 1. With the above arrangement, the annular vertical side wall 51 is supported and fixed through the upper support seat 61 and the lower support seat 62.

[0055] The multi-layer vertical multi-tube cyclone separator may further include any other suitable components. Please refer to Figure 1 As shown, in the first specific embodiment of the present invention, the multi-layer vertical multi-tube cyclone separator further includes a valve 8, and the valve 8 is disposed between the upper ends of the connecting pipe 7 and the ash hopper 6. With the above arrangement, through the valve 8, it is convenient for the ash hopper 6 to discharge ash.

[0056] The valve 8 can be any suitable type of valve. In the first specific embodiment of the present invention, the valve 8 is a ball valve.

[0057] The multi-layer vertical multi-tube cyclone separator may further include any other suitable components. Please refer to Figure 1 As shown, in the first specific embodiment of the present invention, the multi-layer vertical multi-tube cyclone separator further includes a mounting support 9. The mounting support 9 is located outside the side wall of the housing 1 and is connected to the side wall of the housing 1. The number of the mounting supports 9 is multiple, and the multiple mounting supports 9 are horizontally arranged around the housing 1 at intervals. With the above arrangement, through the mounting support 9, it is convenient for the installation of the present invention.

[0058] The number of the mounting supports 9 can be determined according to needs. In the first specific embodiment of the present invention, the number of the mounting supports 9 is 4, and the 4 mounting supports 9 are respectively located at the front, rear, left, and right of the housing 1.

[0059] The multi-layer vertical multi-tube cyclone separator may further include any other suitable components. Please refer to Figure 1 As shown, in the first specific embodiment of the present invention, the multi-layer vertical multi-tube cyclone separator further includes a manhole 10, and the manhole 10 is disposed in the side wall of the housing 1. With the above arrangement, through the manhole 10, it is convenient for the pre-manufacturing construction and the subsequent maintenance and repair of the multi-tube cyclone separator.

[0060] The number and the setting position of the manhole 10 can be determined according to needs. Please refer to Figure 1 As shown, in the first specific embodiment of the present invention, the number of the manholes 10 is 2. One of the manholes 10 is located between the first lower partition 42 and the second upper partition 52, and the other manhole 10 is located between the second lower partition 53 and the dust discharge port 11.

[0061] The number of the second separation components 5 can be determined as required. Preferably, the number of the second separation components 5 is multiple, and the multiple second separation components 5 are arranged vertically in sequence. The upper end of the partition cover 54 of the second separation component 5 located at the lower side among two vertically adjacent second separation components 5 is sleeved outside the air inlet pipe 2 and is located under the second lower partition plate 53 of the second separation component 5 located at the upper side and is connected to the second lower partition plate 53 of the second separation component 5 located at the upper side. The upper end of the partition cover 54 of the uppermost second separation component 5 is sleeved outside the air inlet pipe 2 and is located under the first lower partition plate 42 and is connected to the first lower partition plate 42. The lower end of the air inlet pipe 2 is located under the second lower partition plate 53 of the lowermost second separation component 5. After the gas treatment volume increases, the multi-layer vertical multi-tube cyclone separator of the first specific embodiment of the present invention containing 2 separation components (i.e., containing one first separation component 4 and one second separation component 5) can no longer meet the requirements, and it is necessary to increase the number of the second separation components 5. Please refer to Figure 5 shown. In the second specific embodiment of the present invention, different from Figures 1 to 4 the first specific embodiment of the present invention shown, the number of the second separation components 5 is 2, that is, one second separation component 5 is added.

[0062] In order to facilitate the prefabrication construction and the subsequent maintenance and overhaul of the multi-tube cyclone separator, when the number of the second separation components 5 is multiple, for each additional second separation component 5, one more manhole 10 is provided. The manhole 10 is located between the second lower partition plate 53 of the second separation component 5 located at the upper side and the second upper partition plate 52 of the second separation component 5 located at the lower side among two vertically adjacent second separation components 5.

[0063] The operating principle of the present invention is as follows: dust-laden gas enters from the upper end of the inlet pipe 2, where larger dust particles fall to the lower end of the inlet pipe 2 due to gravity settling, and enter the ash hopper 6 through the connecting pipe 7. A portion of the gas enters the space between the first upper baffle 41 and the first lower baffle 42 of the first separation assembly 4 through the first inlet hole 21, while the remaining portion enters the space between the second upper baffle 52 and the second lower baffle 53 of the second separation assembly 5 through the second inlet hole 22. Because the gas must change direction before entering the separation assembly, a proportion of slightly larger dust particles in the gas are separated from the gas due to inertia. Therefore, before entering each separation assembly, the dust-laden gas is pre-separated by both gravity settling and inertia. As a result, the dust concentration in the gas entering the separation assembly is reduced, and the dust particles are all finer. This prevents accumulation of dust at the bottom of the separation assembly (i.e., the lower baffle) due to gravity settling. A valve 8 is also provided between the connecting pipe 7 and the ash hopper 6. The purpose is to isolate the gas in the separator by closing the valve 8 when the ash hopper 6 is discharging ash, and to open the valve 8 after the ash hopper 6 has finished discharging ash.

[0064] The dust-laden gas entering the first separation assembly 4 between the first upper baffle 41 and the first lower baffle 42 through the first air inlet 21 enters the first air inlet 45 of the first cyclone 43. The separated clean gas is discharged from the first air outlet 46 of the first cyclone 43, then enters the upper end of the outlet pipe 3 through the first exhaust pipe 44. The separated dust is discharged from the first dust outlet 47 of the first cyclone 43. The dust-laden gas entering the second separation assembly 5 between the second upper baffle 52 and the second lower baffle 53 through the second air inlet 22 enters the second air inlet 58 of the second cyclone 55. The separated clean gas is discharged from the second air outlet 59 of the second cyclone 55, then enters the upper end of the outlet pipe 3 through the second exhaust pipe 56. The separated dust is discharged from the second dust outlet 60 of the second cyclone 55. As the dust falls, it passes through the gap between the annular vertical sidewall 51 and the sidewall of the housing 1, as well as the gap between the connectors 7.

[0065] Air enters each separation assembly from its center and circumferentially around the inlet pipe 2. This ensures uniform airflow to each cyclone within each separation assembly, preventing interference and impact on separation efficiency caused by uneven airflow between cyclones. After entering each cyclone, the air is purified by centrifugal force. The clean air then enters the corresponding exhaust pipe and is then collected by the outlet pipe 3 for subsequent processing. Dust collected by the cyclones is discharged through a shared dust outlet 11.

[0066] Compared with the prior art, the beneficial effects of the present invention are mainly:

[0067] (1) The shell diameter of the multi-layer vertical multi-cyclone separator of the present invention is not limited by the gas volume to be processed. As the gas volume to be processed increases, the shell diameter can be adjusted to a reasonable value. Only the number of second separation assemblies needs to be increased vertically to meet the operating conditions of a larger gas volume. This solves many problems of uneven air intake, partition deformation, and poor stability in oversized diameter multi-cyclone separators. Furthermore, this multi-layer multi-cyclone separator occupies a small area and has wider adaptability.

[0068] (2) The air inlet pipe of the multi-layer vertical multi-tube cyclone separator of the present invention is arranged vertically from top to bottom. The air inlet needs to change the airflow direction from vertical to horizontal to enter each separation component. Then, the impurity particles with larger diameters in the gas will fall into the lower end of the air inlet pipe along the air inlet pipe under the dual effects of "inertia" and "gravity sedimentation", and finally fall into the ash hopper through the connecting pipe and be discharged regularly. This is equivalent to increasing the pre-separation effect of the multi-layer vertical multi-tube cyclone separator of the present invention. The large-diameter impurity particles are separated before entering the separation component, which not only reduces the separation load and wear degree of the multi-layer vertical multi-tube cyclone separator of the present invention, but also avoids the occurrence of material accumulation on the lower partition of the multi-layer vertical multi-tube cyclone separator of the present invention.

[0069] (3) Each separation component of the multi-layer vertical multi-tube cyclone separator of the present invention adopts central air intake. The air intake method is to enter the separation component from the circumferential direction of the air intake pipe through multiple air intake holes. The air intake holes are equivalent to air intake uniformizers. This air intake method can make the air intake volume of each cyclone almost equal, solving the problem of cyclones interfering with each other due to air intake deviation and resulting in reduced efficiency.

[0070] (4) The air inlet pipe and the air outlet pipe of the multi-layer vertical multi-tube cyclone separator of the present invention are both variable diameter pipes, which can make the resistance of the gas entering between the upper and lower partitions of each separation component or exiting the exhaust pipe of each separation component equal, balance the air intake volume entering each layer of separation components, weaken the mutual interference between each layer of separation components, and help improve the overall separation efficiency of the multi-layer vertical multi-tube cyclone separator of the present invention.

[0071] Therefore, the multi-layer vertical multi-cyclone separator of the present invention is equipped with multiple layers of separation components for separation within its housing. The cyclones of each layer of separation components are arranged vertically and connected in parallel. The multi-layer vertical multi-cyclone separator of the present invention cleverly arranges multiple cyclones in a multi-layer vertical distribution structure within the separator. Compared to conventional multi-cyclone separators, it significantly increases the gas processing capacity while reducing the separator diameter, effectively reducing the equipment footprint, lowering equipment investment costs, and offering advantages such as high separation efficiency and stable operation.

[0072] In summary, the multi-layer vertical multi-tube cyclone separator of the present utility model can be applicable to a large gas processing capacity, has good separation effect, is conducive to dust discharge, has a compact and stable structure, occupies a small floor area, is ingeniously designed, has a simple structure, operates stably, has a low investment cost, and is suitable for large-scale popularization and application.

[0073] Therefore, it can be seen that the object of the present utility model has been completely and effectively achieved. The functions and structural principles of the present utility model have been shown and described in the embodiments. Without departing from the above principles, the implementation modes can be modified arbitrarily. Therefore, the present utility model includes all modified implementation modes based on the spirit and scope of the claims.

Claims

1. A multi-layer vertical multi-tube cyclone separator, comprising a housing, an air inlet pipe and an air outlet pipe, wherein the housing is vertically arranged, and a dust discharge port is arranged at the bottom of the housing, and is characterized in that, The multi-layer vertical multi-tube cyclone separator further includes a first separation component, a second separation component, a dust hopper and a connecting pipe, wherein: The air inlet pipe is vertically arranged and located inside the housing. The upper end of the air inlet pipe is vertically inserted into the central position at the top of the housing and exposes the central position at the top of the housing. The air outlet pipe is located on the side of the housing. The upper end of the air outlet pipe is vertically arranged, and the lower end of the air outlet pipe is an air outlet; The first separation component includes a first upper partition plate, a first lower partition plate, a first cyclone and a first exhaust pipe. The first upper partition plate and the first lower partition plate are both horizontally arranged and spaced apart from each other up and down. The first upper partition plate and the first lower partition plate are both located inside the housing, both connected to the side wall of the housing, and both sleeved outside the air inlet pipe. The first cyclone is vertically arranged and vertically inserted into the first upper partition plate and the first lower partition plate respectively. Thus, the first air inlet of the first cyclone is located between the first upper partition plate and the first lower partition plate, the first air outlet of the first cyclone is located on the first upper partition plate, the first dust discharge port of the first cyclone is located below the first lower partition plate. The number of the first cyclones is multiple, and the multiple first cyclones are horizontally arranged around the air inlet pipe at intervals. The first exhaust pipe is located between the side wall of the housing and the upper end of the air outlet pipe and is respectively connected to the side wall of the housing and the upper end of the air outlet pipe. The position where the first exhaust pipe is connected to the side wall of the housing is higher than the first upper partition plate; The second separation component includes an annular vertical side wall, a second upper partition plate, a second lower partition plate, a partition cover, a second cyclone, a second exhaust pipe and a connecting piece. The annular vertical side wall is located inside the shell and is spaced from the side wall of the shell. The second upper partition plate and the second lower partition plate are both horizontally arranged and spaced from each other vertically. The second upper partition plate and the second lower partition plate are respectively located inside the upper end and the lower end of the annular vertical side wall and are respectively connected to the upper end and the lower end of the annular vertical side wall and are both sleeved outside the intake pipe. The second cyclone is vertically arranged and is vertically inserted into the second upper partition plate and the second lower partition plate respectively. Thus, the second air inlet of the second cyclone is located between the second upper partition plate and the second lower partition plate, the second air outlet of the second cyclone is located on the second upper partition plate, and the second dust discharge port of the second cyclone is located below the second lower partition plate. The number of the second cyclones is multiple, and multiple second cyclones are horizontally arranged around the intake pipe and spaced from each other. The partition cover is vertically arranged with a thin upper end and a thick lower end. The upper end of the partition cover is sleeved outside the intake pipe and is located below the first lower partition plate and is connected to the first lower partition plate. The lower end of the partition cover is arranged on the upper end of the annular vertical side wall to cover the second air outlet of the second cyclone. The connecting piece is located between the lower end of the annular vertical side wall and the side wall of the shell and is respectively connected to the lower end of the annular vertical side wall and the side wall of the shell. The number of the connecting pieces is multiple, and multiple connecting pieces are horizontally arranged around the lower end of the annular vertical side wall and spaced from each other. The second exhaust pipe penetrates through the side wall of the shell and is located between the side wall of the partition cover and the upper end of the exhaust pipe and is respectively connected to the side wall of the partition cover and the upper end of the exhaust pipe; The side wall of the intake pipe is respectively provided with a first air inlet hole and a second air inlet hole. The first air inlet hole is located between the first upper partition plate and the first lower partition plate, and the second air inlet hole is located between the second upper partition plate and the second lower partition plate. The number of the first air inlet holes and the number of the second air inlet holes are both multiple. Multiple first air inlet holes and multiple second air inlet holes are both arranged around the intake pipe and are spaced from each other. The lower end of the intake pipe is located below the second lower partition plate and is higher than the dust discharge port. The ash hopper is vertically arranged and is located outside the shell and is lower than the lower end of the intake pipe. The connecting pipe penetrates through the side wall of the shell and is located between the lower end of the intake pipe and the upper end of the ash hopper and is respectively connected to the lower end of the intake pipe and the upper end of the ash hopper.

2. The multi-layer vertical multi-tube cyclone separator according to claim 1, characterized in that, The diameter of the upper end of the exhaust pipe gradually increases from top to bottom.

3. The multi-layer vertical multi-tube cyclone separator according to claim 1, characterized in that, The diameter of the first air inlet hole and the diameter of the second air inlet hole are both 8 mm to 20 mm.

4. The multi-layer vertical multi-tube cyclone separator according to claim 1, characterized in that, The diameter of the intake pipe gradually decreases from top to bottom.

5. The multi-layer vertical multi-tube cyclone separator according to claim 1, characterized in that, The number of the first cyclones is the same as the number of the second cyclones.

6. The multi-layer vertical multi-tube cyclone separator according to claim 1, characterized in that, Both the first cyclone and the second cyclone are tangential inlet type cyclones.

7. The multi-layer vertical multi-tube cyclone separator according to claim 1, characterized in that, The connecting member includes an upper support seat and a lower support seat. The upper support seat is arranged on the lower support seat. Both the upper support seat and the lower support seat are located between the lower end of the annular vertical side wall and the side wall of the housing and are respectively connected to the lower end of the annular vertical side wall and the side wall of the housing.

8. The multi-layer vertical multi-tube cyclone separator according to claim 1, wherein, The number of the second separation components is multiple. The multiple second separation components are arranged vertically in sequence. The upper end of the partition hood of the second separation component at the lower position among two adjacent second separation components arranged vertically is sleeved outside the intake pipe and is located under the second lower partition of the second separation component at the upper position and is connected to the second lower partition of the second separation component at the upper position. The upper end of the partition hood of the topmost second separation component is sleeved outside the intake pipe and is located under the first lower partition and is connected to the first lower partition. The lower end of the intake pipe is located under the second lower partition of the lowermost second separation component.

9. The multi-layer vertical multi-tube cyclone separator according to claim 8, characterized in that, The number of the second separation components is 2.

10. The multi-layer vertical multi-tube cyclone separator according to claim 1, characterized in that, The multi-layer vertical multi-tube cyclone separator further includes a valve. The valve is arranged between the connecting pipe and the upper end of the ash hopper.

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