Cement preheater cyclone low-resistance inlet structure

Abstract

The utility model discloses a low-resistance inlet structure of a cyclone of a cement preheater, and relates to the field of cement industrial production. The feeding device comprises an inlet air pipe, a volute body is installed on one side of the inlet air pipe, an inner cylinder integrated with the volute body is welded to the middle of the volute body, a column body is installed on the lower side of the volute body, a discharging cone is installed below the column body, a plurality of installation frames are installed on the peripheral side of the column body, and the installation frames are installed on the lower side of the volute body. A discharging pipe is installed at an outlet of the discharging cone, and a low-resistance inlet assembly is arranged at an inlet of the inlet air pipe. According to the utility model, the air conveying pipe and the expansion shell are arranged at the inlet air pipe, and the expansion shell is arranged at the top of the inlet air pipe and the top of the air conveying pipe, so that the width of the inlet air pipe is kept unchanged, the height of the air inlet is increased, and the area of the inlet of the cyclone cylinder is properly increased, and in this way, the resistance can be effectively reduced, and the influence on the separation efficiency of the cyclone separator is small.

Description

Technical Field

[0001] This utility model relates to the field of cement industry production technology, and more specifically, to a low-resistance inlet structure for a cement preheater cyclone. Background Technology

[0002] In the field of new dry process cement production technology, energy conservation and consumption reduction are important goals pursued by enterprises. Among them, the resistance of the kiln tail preheater mainly comes from the reconstruction of multi-stage cyclone separators. Therefore, reducing the resistance of each stage of cyclone separators can effectively achieve energy conservation.

[0003] In order to maintain a high separation efficiency, existing cyclone separators require the sacrifice of some pressure parameters, resulting in local resistance loss at the inlet. Otherwise, significantly reducing the resistance often affects the separation efficiency, thereby impacting the normal operation of the cyclone separator.

[0004] Therefore, we have made improvements to this by proposing a low-resistance inlet structure for a cement preheater cyclone. Utility Model Content

[0005] The purpose of this invention is to address the issue that, in order to maintain a high separation efficiency, existing cyclone separators require sacrificing some pressure parameters, resulting in resistance loss at the inlet. Otherwise, significantly reducing the resistance often affects the separation efficiency, thereby impacting the normal operation performance of the cyclone separator.

[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0007] A low-resistance inlet structure for a cement preheater cyclone separator is proposed to improve the aforementioned problems.

[0008] The application is as follows:

[0009] The system includes an inlet duct, a volute housing installed on one side of the inlet duct, an inner cylinder welded integrally with the volute housing in the middle, a column installed on the lower side of the volute housing, a discharge cone installed below the column, multiple mounting brackets installed around the column, a discharge pipe installed at the outlet of the discharge cone, and a low-resistance inlet assembly installed at the inlet of the inlet duct.

[0010] By installing an air supply duct and an expansion shell at the inlet duct, and by installing the expansion shell at the top of the inlet duct and the air supply duct, the width of the inlet duct remains unchanged, the height of the air inlet is increased, and the area of ​​the cyclone inlet is appropriately increased. This method can effectively reduce drag and has little impact on the separation efficiency of the cyclone separator.

[0011] As a preferred embodiment of the low-resistance inlet structure of the cement preheater cyclone provided by this utility model, the volute shell is a three-centered, equal-height, variable-angle volute shell structure welded together by three circular arcs of different radii, and the column is a cylindrical hollow shell.

[0012] As a preferred embodiment of the low-resistance inlet structure of the cement preheater cyclone provided by this utility model, the low-resistance inlet assembly includes an air supply pipe installed at the inlet of the inlet air duct, an expansion shell is installed on the upper side of the air supply pipe, and the connection between the expansion shell and the air supply pipe is welded.

[0013] As a preferred embodiment of the low-resistance inlet structure of the cement preheater cyclone tube provided by this utility model, an air-enhancing inlet is provided at the connection between the upper side of the air duct and the expansion shell, and an air-enhancing outlet is provided at the connection between the upper side of the inlet air duct and the expansion shell. The connection between the expansion shell and the inlet air duct is welded.

[0014] As a preferred embodiment of the low-resistance inlet structure of the cement preheater cyclone tube provided by this utility model, an inlet guide plate is installed at the connection between the expansion shell and the air duct, an outlet guide plate is installed at the connection between the expansion shell and the inlet air duct, and an air-enhancing chamber is provided inside the expansion shell.

[0015] As a preferred embodiment of the low-resistance inlet structure of the cement preheater cyclone tube provided by this utility model, a first connecting frame is installed at the inlet of the inlet air duct, and a plurality of first through holes are opened on one side of the first connecting frame. A second connecting frame is installed at the opening of the air duct, and a plurality of second through holes are opened on one side of the second connecting frame.

[0016] As a preferred embodiment of the low-resistance inlet structure of the cement preheater cyclone provided by this utility model, the outer side of the expansion shell is provided with an installation frame located between the first connecting frame and the second connecting frame, and rivets installed in the first through hole and the second through hole are respectively installed on both sides of the installation frame.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: by installing an air supply pipe and an expansion shell at the inlet air duct, and by installing an expansion shell at the top of the inlet air duct and the air supply pipe, the width of the inlet air duct remains unchanged, the height of the air inlet is increased, and the area of ​​the cyclone inlet is appropriately increased. This method can effectively reduce drag and has little impact on the separation efficiency of the cyclone separator. Attached Figure Description

[0018] Figure 1 A schematic diagram of the overall structure of the low-resistance inlet structure of the cement preheater cyclone separator provided in this application;

[0019] Figure 2A structural schematic diagram of the inlet duct of the low-resistance inlet structure of the cement preheater cyclone provided in this application;

[0020] Figure 3 An exploded structural diagram of the low-resistance inlet component of the cyclone separator for the cement preheater provided in this application.

[0021] Figure 4 This is a schematic diagram of the extended shell structure of the low-resistance inlet structure of the cement preheater cyclone provided in this application.

[0022] The image shows:

[0023] 1. Inlet air duct; 2. Volute housing; 3. Inner cylinder; 4. Column; 5. Feed cone; 6. Mounting bracket; 7. Feed pipe; 8. Low-resistance inlet assembly; 801. Air supply duct; 802. Expansion shell; 803. Air booster inlet; 804. Air booster outlet; 805. First connecting frame; 806. First through hole; 807. Second connecting frame; 808. Second through hole; 809. Mounting frame; 810. Rivet; 811. Inlet air guide plate; 812. Outlet air guide plate; 813. Air booster chamber. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0025] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0026] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0030] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] Example 1

[0033] Please refer to Figure 1-4 A low-resistance inlet structure for a cement preheater cyclone separator includes: an inlet duct 1; a volute 2 mounted on one side of the inlet duct 1; an inner cylinder 3 integrally welded to the middle of the volute 2; a column 4 mounted on the lower side of the volute 2; a discharge cone 5 mounted below the column 4; multiple mounting brackets 6 mounted around the periphery of the column 4; a discharge pipe 7 mounted at the outlet of the discharge cone 5; and a low-resistance inlet assembly 8 at the inlet of the inlet duct 1. The volute 2 is a tri-centered, equal-height, variable-angle volute structure formed by welding three arcs of different radii. The column 4 is a cylindrical hollow shell. The low-resistance inlet assembly 8 includes an air supply pipe 801 installed at the inlet of the inlet duct 1; an expansion shell 802 mounted on the upper side of the air supply pipe 801; and the connection between the expansion shell 802 and the air supply pipe 801 is welded. An air-enhancing inlet 803 is provided at the connection between the upper side of the air duct 801 and the expansion shell 802, and an air-enhancing outlet 804 is provided at the connection between the upper side of the inlet air duct 1 and the expansion shell 802. The connection between the expansion shell 802 and the inlet air duct 1 is welded. An inlet guide plate 811 is installed at the connection between the expansion shell 802 and the air duct 801, and an outlet guide plate 812 is installed at the connection between the expansion shell 802 and the inlet air duct 1. An air-enhancing chamber 813 is provided inside the expansion shell 802.

[0034] Implementation process: By installing an air supply pipe 801 and an expansion shell 802 at the inlet air duct 1, and by installing the expansion shell 802 on the top of the inlet air duct 1 and the air supply pipe 801, the width of the inlet air duct 1 remains unchanged, and the height of the air inlet is increased. The air in the air supply pipe 801 enters the air-enhancing inlet 803, flows through the air-enhancing cavity 813, and enters the inlet air duct 1 through the air-enhancing outlet 804. The inlet guide plate 811 and the outlet guide plate 812 play a guiding role. The air-enhancing cavity 813 increases the inlet area of ​​the cyclone.

[0035] Benefits of implementation: By increasing the inlet area of ​​the cyclone separator through the air-enhancing chamber 813, drag can be effectively reduced.

[0036] Example 2

[0037] A first connecting frame 805 is installed at the inlet of the inlet duct 1. Multiple first through holes 806 are opened on one side of the first connecting frame 805. A second connecting frame 807 is installed at the opening of the air duct 801. Multiple second through holes 808 are opened on one side of the second connecting frame 807. A mounting frame 809 is installed on the outer side of the expansion shell 802, located between the first connecting frame 805 and the second connecting frame 807. Rivets 810 are installed on both sides of the mounting frame 809, respectively, and are installed within the first through holes 806 and the second through holes 808.

[0038] Implementation process: By installing a mounting frame 809 located between the first connecting frame 805 and the second connecting frame 807 on the outside of the expansion shell 802, and by connecting the rivets 810 provided on the mounting frame 809 with the first through hole 806 and the second through hole 808 on the first connecting frame 805 and the second connecting frame 807, the sealing of the connection between the inlet air duct 1 and the air supply duct 801 and the expansion shell 802 is ensured.

[0039] Benefits of implementation: By increasing the inlet area of ​​the cyclone separator through the air-enhancing chamber 813, drag can be effectively reduced.

[0040] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the invention, are covered within the scope of the claims of the present utility model.

Claims

1. A low resistance inlet structure for a cement preheater cyclone characterized by, Include: The inlet air pipe (1), one side of the inlet air pipe (1) is provided with volute shell (2), the middle part of volute shell (2) is welded with inner cylinder (3) which is integrated with volute shell (2), the lower side of volute shell (2) is provided with cylinder (4), the lower side of cylinder (4) is provided with lower discharge cone (5), the peripheral side of cylinder (4) is provided with multiple mounting frames (6), the outlet of lower discharge cone (5) is provided with lower discharge pipe (7), the inlet of inlet air pipe (1) is provided with low resistance inlet assembly (8).

2. A low resistance inlet structure for a cement preheater cyclone according to claim 1, characterized in that The volute shell (2) is a three-center equal height variable angle volute structure welded by three different radius arcs, and the cylinder (4) is a cylindrical hollow shell.

3. A low resistance inlet structure for a cement preheater cyclone according to claim 1, characterized in that The low resistance inlet assembly (8) includes a wind conveying pipe (801) mounted at the inlet of the inlet air pipe (1), an expansion shell (802) mounted on the upper side of the wind conveying pipe (801), and the connection between the expansion shell (802) and the wind conveying pipe (801) is welded.

4. A low resistance inlet structure for a cement preheater cyclone according to claim 3, wherein The upper side of the wind conveying pipe (801) is provided with an air inlet (803) at the connection with the expansion shell (802), the upper side of the inlet air pipe (1) is provided with an air outlet (804) at the connection with the expansion shell (802), and the connection between the expansion shell (802) and the inlet air pipe (1) is welded.

5. A low resistance inlet structure for a cement preheater cyclone according to claim 4, wherein The expansion shell (802) is provided with an inlet air baffle (811) at the connection with the wind conveying pipe (801), and is provided with an outlet air baffle (812) at the connection with the inlet air pipe (1), and is provided with an air inlet cavity (813) in the expansion shell (802).

6. A low resistance inlet structure for a cement preheater cyclone according to claim 5, wherein The inlet of the inlet air pipe (1) is provided with a first connecting frame (805), one side of the first connecting frame (805) is provided with multiple first through holes (806), the opening of the wind conveying pipe (801) is provided with a second connecting frame (807), one side of the second connecting frame (807) is provided with multiple second through holes (808).

7. A low resistance inlet structure for a cement preheater cyclone according to claim 6, wherein The outer side of the expansion shell (802) is provided with a mounting frame (809) between the first connecting frame (805) and the second connecting frame (807), and the two sides of the mounting frame (809) are respectively provided with rivets (810) mounted in the first through hole (806) and the second through hole (808).

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