Fluidized bed anti-abrasion hood

Abstract

The utility model discloses an anti-abrasion air cap of a fluidized bed, which belongs to the technical field of fluidized air inlets and comprises an air pipe body, a contact table is connected to the peripheral side of the air pipe body, two symmetrical insertion holes are formed in the peripheral side of the contact table, an air cap body is arranged at the upper end of the contact table, and a plurality of circumferentially distributed air holes are formed in the peripheral side of the air cap body. A plurality of circumferentially-distributed air pipe holes are formed in the upper end of the peripheral side of the air pipe body, two sets of symmetrically-arranged locking mechanisms are rotationally connected to the peripheral side of the air pipe body, each locking mechanism comprises a rotating shaft rotationally connected to the air pipe body, each rotating shaft is connected with a rotating plate, a through hole is formed in the outer end of each rotating plate, and a contact spring is connected to the inner end of each rotating plate. The contact spring is connected with an insertion column, one end of the insertion column close to the contact spring is connected with a moving column, and the moving column penetrates through the through hole. According to the air cap, the air cap body which is used for a long time can be conveniently replaced, and the fluency of the air cap body in the using process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fluidized air inlets, in particular to an anti-wear hood for a fluidized bed. Background Art

[0002] The air hood is a component of the air distribution device in a circulating fluidized bed boiler. It is usually installed on the air distribution plate. It plays a role in making the air entering the fluidized bed generate a second diversion and have a certain kinetic energy, thereby reducing the formation of initial bubbles and causing strong disturbance of coarse particles at the bottom of the bed material, avoiding the deposition of coarse particles, and reducing the carbon loss of cold slag.

[0003] The existing technology has the problem that a large amount of dust will adhere to the inner wall of the hood and the inner wall of the air hole during long-term use of the hood, which will cause the flow rate of the hood to decrease during subsequent use, and finally lead to poor performance of the hood. It is necessary to replace it conveniently to increase the flow rate of the air inside the hood and thus ensure the performance of the hood. To this end, we propose a fluidized bed anti-wear hood. Utility Model Content

[0004] The purpose of the present utility model is to provide a fluidized bed anti-wear hood to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fluidized bed anti-wear hood, comprising an air duct body, the outer peripheral side of the air duct body is connected to a contact platform, the outer peripheral side of the contact platform is provided with two symmetrical plug holes, the upper end of the contact platform is provided with a air hood body, the outer peripheral side of the air hood body is provided with a plurality of circumferentially distributed air holes, the upper end of the outer peripheral side of the air duct body is provided with a plurality of circumferentially distributed air duct holes, the outer peripheral side of the air duct body is rotatably connected with two groups of symmetrically arranged locking mechanisms, the locking mechanism comprises a rotating shaft rotatably connected to the air duct body, the rotating shaft is connected to a rotating plate, the outer end of the rotating plate is provided with a through hole, the inner end of the rotating plate is connected to a contact spring, the contact spring is connected to a plug column, the plug column is connected to a movable column near one end of the contact spring, and the movable column is arranged through the through hole.

[0006] Preferably, a sealing ring is connected to the upper end surface of the contact platform, and the inner end surface of the sealing ring is arranged to abut against the outer end surface of the air duct body.

[0007] Preferably, the end of the movable column away from the insertion column is connected to a pull-out plate, and the outer diameter of the pull-out plate is larger than the outer diameter of the insertion column.

[0008] Preferably, the outer end of the plug post is rounded, and the inner end of the socket is rounded.

[0009] Preferably, the inner upper end surface of the hood body is arranged to abut against the upper end surface of the air duct body.

[0010] Preferably, the outer diameter of the movable column is smaller than the inner diameter of the through hole.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: a duct body, a contact platform, a hood body, an air duct hole, an air hole, a locking mechanism, a socket and a sealing ring are provided to complete the installation of the hood body. At this time, the hood body can be placed on the contact platform, and then the rotating plate is rotated. At this time, the rotating plate drives the rotating shaft to rotate. During the rotation of the rotating plate, the plug post contacts the outer end of the hood body, and the contact spring is in a compressed state. Next, when the plug post is aligned with the socket position, the hood body is installed. When the hood body needs to be replaced, the pull-out plate can be pulled out. At this time, the pull-out plate drives the moving column and then drives the plug post to move outward. At this time, the plug post compresses the contact spring. When the plug post is out of the socket, the hood body can be removed. The utility model realizes the convenient replacement of the hood body that has been used for a long time, and improves the fluency of the hood body during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0014] Figure 3 For this utility model Figure 2 A magnified view of the structure of part A;

[0015] Figure 4 This is a schematic diagram of the locking mechanism structure of the utility model.

[0016] In the figure: 1. Duct body; 2. Contact platform; 3. Hood body; 4. Duct hole; 5. Air hole; 6. Locking mechanism; 601. Rotating shaft; 602. Rotating plate; 603. Through hole; 604. Contact spring; 605. Insert column; 606. Moving column; 607. Pull-out plate; 7. Insert hole; 8. Sealing ring. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] See also Figure 1-4The utility model provides a technical solution: a fluidized bed anti-wear hood, comprising an air duct body 1, a contact platform 2 connected to the outer peripheral side of the air duct body 1, two symmetrical plug holes 7 are opened on the outer peripheral side of the contact platform 2, a hood body 3 is arranged on the upper end of the contact platform 2, a plurality of circumferentially distributed air holes 5 are opened on the outer peripheral side of the air duct body 3, a plurality of circumferentially distributed air duct holes 4 are opened on the upper end of the outer peripheral side of the air duct body 1, the outer peripheral side of the air duct body 1 is rotatably connected with two groups of symmetrically arranged locking mechanisms 6, the locking mechanism 6 includes a rotating shaft 601 rotatably connected to the air duct body 1, the rotating shaft 601 is connected to a rotating plate 602, the outer end of the rotating plate 602 is opened with a through hole 603, the inner end of the rotating plate 602 is connected to a contact spring 604, the contact spring 604 is connected to a plug column 605, the plug column 605 is connected to a movable column 606 at one end close to the contact spring 604, and the movable column 606 is arranged through the through hole 603.

[0019] Specifically, the upper end face of the contact platform 2 is connected to a sealing ring 8, and the inner end face of the sealing ring 8 is set to abut the outer end face of the air duct body 1. The sealing ring 8 can complete the sealing action; the movable column 606 is connected to a pull-out plate 607 at one end away from the plug-in column 605, and the outer diameter of the pull-out plate 607 is larger than the outer diameter of the plug-in column 605; the outer end of the plug-in column 605 is rounded, and the inner end of the socket 7 is rounded; the inner upper end face of the hood body 3 is set to abut the upper end face of the air duct body 1; the outer diameter of the movable column 606 is smaller than the inner diameter of the through hole 603.

[0020] When the hood body 3 is installed, the hood body 3 can be placed on the contact platform 2, and then the rotating plate 602 is rotated. At this time, the rotating plate 602 drives the rotating shaft 601 to rotate. During the rotation of the rotating plate 602, the plug 605 contacts the outer end of the hood body 3, and the contact spring 604 is in a compressed state. Next, when the plug 605 is aligned with the position of the socket 7, the hood body 3 is installed. When the hood body 3 needs to be replaced, the pull-out plate 607 can be pulled and pulled. At this time, the pull-out plate 607 drives the moving column 606 and then drives the plug 605 to move outward. At this time, the plug 605 compresses the contact spring 604. When the plug 605 is out of the socket 7, the hood body 3 can be removed. This utility model realizes the convenient replacement of the hood body 3 that has been used for a long time, and improves the smoothness of the hood body 3 during use.

[0021] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fluidized bed anti-wear hood, comprising an air duct body (1), characterized in that: The outer peripheral side of the air duct body (1) is connected to a contact platform (2), and the outer peripheral side of the contact platform (2) is provided with two symmetrical plug holes (7). The upper end of the contact platform (2) is provided with a hood body (3), and the outer peripheral side of the hood body (3) is provided with a plurality of circumferentially distributed air holes (5). The upper end of the outer peripheral side of the air duct body (1) is provided with a plurality of circumferentially distributed air duct holes (4). The outer peripheral side of the air duct body (1) is rotatably connected to two groups of symmetrically arranged locking mechanisms (6), and the locking mechanisms (6) include a rotating A rotating shaft (601) is movably connected to the air duct body (1), the rotating shaft (601) is connected to a rotating plate (602), the outer end of the rotating plate (602) is provided with a through hole (603), the inner end of the rotating plate (602) is connected to a contact spring (604), the contact spring (604) is connected to a plug post (605), the plug post (605) is connected to a movable post (606) at one end close to the contact spring (604), and the movable post (606) is arranged to pass through the through hole (603).

2. The anti-wear hood for a fluidized bed according to claim 1, characterized in that: The upper end surface of the contact platform (2) is connected to a sealing ring (8), and the inner end surface of the sealing ring (8) is arranged to abut against the outer end surface of the air duct body (1).

3. The anti-wear hood for a fluidized bed according to claim 1, characterized in that: One end of the movable column (606) away from the plug column (605) is connected to a pull-out plate (607), and the outer diameter of the pull-out plate (607) is greater than the outer diameter of the plug column (605).

4. The anti-wear hood for a fluidized bed according to claim 1, characterized in that: The outer end of the plug post (605) is rounded, and the inner end of the plug hole (7) is rounded.

5. The anti-wear hood for a fluidized bed according to claim 4, characterized in that: The inner upper end surface of the hood body (3) is arranged to abut against the upper end surface of the air duct body (1).

6. The anti-wear hood for a fluidized bed according to claim 4, characterized in that: The outer diameter of the moving column (606) is smaller than the inner diameter of the through hole (603).

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