Vertical mill hot air pipeline air inlet baffle connecting structure

Abstract

The utility model discloses a vertical mill hot air pipeline air inlet baffle connecting structure, which relates to the field of baffle connection and comprises an air inlet shell, two air inlet pipes are symmetrically welded on the outer wall of the air inlet shell, and inner cavities of the air inlet pipes are communicated with an inner cavity of the air inlet shell. A porous baffle making contact with the top end of the edge of the grinding disc is arranged on the inner wall of the air inlet shell and fixed through a connecting mechanism. The connecting mechanism comprises a transverse moving mechanism and a vertical moving mechanism, and an annular inserting groove is formed in the outer wall of the grinding disc; the vertical moving mechanism is fixedly connected with the bottom end of the porous baffle. The connecting mechanism is arranged, the porous baffle is arranged to be of a structure with the top end inclining inwards, the porous baffle can be conveniently installed and replaced through the connecting mechanism, the installation efficiency of replacement can be improved, and then the problem that materials are stacked on the porous baffle and cannot fall back can be solved.

Description

Technical Field

[0001] The utility model relates to the field of baffle connection, in particular to a baffle connection structure for an air inlet of a hot air duct of a vertical mill. Background Art

[0002] Vertical mill is a kind of grinding device that processes materials into micro powder particles and then carries out qualified micro powder particles through air flow.

[0003] In the prior art, when the grinding disc rotates, part of the material will move over the edge protrusion of the grinding disc to the porous baffle plate, and this part of the material cannot fall back onto the grinding disc. As the incompletely ground material accumulates on the porous baffle plate, it will affect the normal use of the device. At the same time, the porous baffle plate in the prior art is generally fixed to the inner wall of the air inlet shell by welding. When the porous baffle plate is damaged due to deformation, it is not easy to replace. Utility Model Content

[0004] The purpose of the utility model is to provide a baffle connection structure for an air inlet of a hot air duct of a vertical mill in order to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vertical mill hot air duct air inlet baffle connection structure, comprising an air inlet shell, the outer wall of which is symmetrically welded with two air inlet pipes, the inner cavity of which is connected with the inner cavity of the air inlet shell, the inner wall of which is provided with a porous baffle in contact with the top of the edge of the grinding disc, and the porous baffle is fixed by a connection mechanism;

[0006] The connecting mechanism includes a horizontal moving mechanism and a vertical moving mechanism, and the outer wall of the grinding disc is provided with an annular plug-in groove;

[0007] The vertical moving mechanism is fixedly connected to the bottom end of the porous baffle, and the lateral moving mechanism is slidably connected to the inside of the vertical moving mechanism. The lateral moving mechanism is used to dock with the plug-in slot.

[0008] As a further solution of the utility model: the vertical moving mechanism is fixedly installed on the plug-in slot at the bottom end of the porous baffle plate and the No. 1 screw rod rotatably connected to the bottom end of the porous baffle plate, the plug-in slot and the outer wall of the No. 1 screw rod are slidably connected with a lifting plate up and down, the connection between the lifting plate and the No. 1 screw rod is formed with an internal thread, the internal thread is engaged with the outer wall of the No. 1 screw rod, and a circular hole is opened inside the lifting plate which is slidably connected to the outer wall of the plug-in slot.

[0009] As a further solution of the utility model: the lateral moving mechanism includes a moving plate slidably connected to the inner wall of the lifting plate, the moving plate does not contact the plug-in slot and the No. 1 screw, and the inner wall of the moving plate is threadedly connected to a No. 2 screw that penetrates to the outside of the lifting plate.

[0010] As a further solution of the utility model: the top and bottom ends of the movable plate are movably connected with balls connected to the top and bottom ends of the inner wall of the plug-in slot.

[0011] As a further solution of the utility model: the No. 2 screw is offset from the plug-in slot and the No. 1 screw, and a connecting wrench is installed at one end of the No. 2 screw away from the plug-in slot and the bottom end of the No. 1 screw.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. By providing a connecting mechanism and setting the porous baffle to a structure with the top end tilted inward, the connecting mechanism can facilitate the installation and replacement of the porous baffle, improve the installation efficiency of replacement, and secondly avoid the problem of materials accumulating on the porous baffle and unable to fall back. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0016] Figure 3 For the utility model Figure 2 A partial enlarged view of point A in the middle.

[0017] In the figure: 1. air inlet housing; 2. air inlet pipe; 3. grinding disc; 4. porous baffle; 5. plug-in slot; 6. No. 1 screw; 7. lifting plate; 8. moving plate; 9. ball bearing; 10. No. 2 screw; 11. guide column. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1 to Figure 3In an embodiment of the utility model, a baffle connection structure for an air inlet of a hot air duct of a vertical mill comprises an air inlet shell 1, two air inlet pipes 2 are symmetrically welded to the outer wall of the air inlet shell 1, the inner cavity of the air inlet pipe 2 is communicated with the inner cavity of the air inlet shell 1, and a porous baffle 4 in contact with the top edge of a grinding disc 3 is provided on the inner wall of the air inlet shell 1, and the porous baffle 4 is fixed by a connecting mechanism; the connecting mechanism comprises a transverse moving mechanism and a vertical moving mechanism, and an annular plug-in groove 5 is provided on the outer wall of the grinding disc 3; the vertical moving mechanism is fixedly connected to the bottom end of the porous baffle 4, and the transverse moving mechanism is slidably connected to the inside of the vertical moving mechanism, and the transverse moving mechanism is used to dock with the plug-in groove 5.

[0020] In this embodiment: first, the lateral moving mechanism is docked with the plug-in slot 5. After the docking is completed, the position of the lateral moving mechanism is limited, and then the porous baffle plate 4 is driven to move up and down by the vertical moving mechanism until the bottom of the porous baffle plate 4 is tightly fitted with the top of the edge protrusion of the grinding disc 3. At this time, the seal at the top of the edge protrusion of the grinding disc 3 is squeezed and deformed, which can improve the sealing of the contact position.

[0021] Please refer to Figure 2 and Figure 3 The vertical moving mechanism is fixedly installed on the plug-in slot 5 at the bottom end of the porous baffle plate 4 and the No. 1 screw 6 that is rotatably connected to the bottom end of the porous baffle plate 4. The plug-in slot 5 and the outer wall of the No. 1 screw 6 are slidably connected with a lifting plate 7 up and down. The connection between the lifting plate 7 and the No. 1 screw 6 is formed with an internal thread, and the internal thread is engaged with the outer wall of the No. 1 screw 6. A circular hole that is slidably connected to the outer wall of the plug-in slot 5 is opened inside the lifting plate 7. The horizontal moving mechanism includes a moving plate 8 that is slidably connected to the inner wall of the lifting plate 7. The moving plate 8 does not contact the plug-in slot 5 and the No. 1 screw 6. The inner wall of the moving plate 8 is threadedly connected with a No. 2 screw 10 that penetrates to the outside of the lifting plate 7.

[0022] In this embodiment: first, align the movable plate 8 with the plug-in slot 5, then rotate the No. 2 screw 10, and the No. 2 screw 10 rotates to drive the movable plate 8 to move toward the plug-in slot 5 until one end of the movable plate 8 is effectively docked with the plug-in slot 5, and then rotate the No. 1 screw 6. When the No. 1 screw 6 is rotating, the lifting plate 7 is limited by the position of the movable plate 8 and the lifting plate 7 cannot move at this time. Then the No. 1 screw 6 moves downward while rotating, and the downward moving No. 1 screw 6 drags the porous baffle plate 4 and the guide column 11 downward until the porous baffle plate 4 forms an effective pressure fit with the seal at the top of the protruding portion of the edge of the grinding disc 3, thereby achieving effective sealing at the connection between the two.

[0023] Please refer to Figure 3 The top and bottom ends of the movable plate 8 are movably connected with balls 9 which are connected with the top and bottom ends of the inner wall of the insertion groove 5.

[0024] In this embodiment: when the grinding disc 3 rotates, the ball 9 can effectively reduce the friction between the two, and because the porous baffle 4 is connected to the air inlet shell 1 in an up and down sliding connection, that is: a slide groove is vertically opened on the inner side of the air inlet shell 1, and the edge of the porous baffle 4 is formed with a slider slidably connected to the slide groove, so the rotation of the grinding disc 3 will not drive the rotation of the porous baffle 4, thereby facilitating the material to move to the top of the porous baffle 4 under the centrifugal force, and return to the grinding disc 3 again under the guiding action of the top slope of the inclined porous baffle 4.

[0025] Please refer to Figure 3 The second screw rod 10 is misaligned with the insertion slot 5 and the first screw rod 6, and a connecting wrench is installed at one end of the second screw rod 10 away from the insertion slot 5 and the bottom end of the first screw rod 6.

[0026] In this embodiment: it is convenient to drive the No. 1 screw rod 6 and the No. 2 screw rod 10 to rotate by connecting the wrench.

[0027] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A vertical mill hot air duct air inlet baffle connection structure, comprising an air inlet shell (1), the outer wall of the air inlet shell (1) is symmetrically welded with two air inlet pipes (2), the inner cavity of the air inlet pipe (2) is connected to the inner cavity of the air inlet shell (1), and is characterized in that: The inner wall of the air inlet housing (1) is provided with a porous baffle (4) in contact with the top edge of the grinding disc (3), and the porous baffle (4) is fixed by a connecting mechanism; The connection mechanism comprises a lateral movement mechanism and a vertical movement mechanism, and the outer wall of the grinding disc (3) is provided with an annular plug-in groove (5); The vertical moving mechanism is fixedly connected to the bottom end of the porous baffle (4), and the lateral moving mechanism is slidably connected to the interior of the vertical moving mechanism. The lateral moving mechanism is used to dock with the plug-in slot (5).

2. The vertical mill hot air duct air inlet baffle connection structure according to claim 1, characterized in that: The vertical moving mechanism is fixedly mounted on a guide column (11) at the bottom end of the porous baffle (4) and a No. 1 screw (6) rotatably connected to the bottom end of the porous baffle (4); a lifting plate (7) is slidably connected to the outer wall of the guide column (11) and the No. 1 screw (6) up and down; an internal thread is formed at the connection between the lifting plate (7) and the No. 1 screw (6); the internal thread is engaged with the outer wall of the No. 1 screw (6); a circular hole is opened inside the lifting plate (7) and is slidably connected to the outer wall of the guide column (11).

3. The vertical mill hot air duct air inlet baffle connection structure according to claim 2, characterized in that: The lateral moving mechanism comprises a moving plate (8) slidably connected to the inner wall of the lifting plate (7), the moving plate (8) not in contact with the guide column (11) and the No. 1 screw (6), and the inner wall of the moving plate (8) is threadedly connected to a No. 2 screw (10) penetrating to the outside of the lifting plate (7).

4. The vertical mill hot air duct air inlet baffle connection structure according to claim 3, characterized in that: The top and bottom ends of the movable plate (8) are movably connected to balls (9) that are connected to the top and bottom ends of the inner wall of the insertion slot (5).

5. The vertical mill hot air duct air inlet baffle connection structure according to claim 4, characterized in that: The second screw rod (10) is offset from the guide column (11) and the first screw rod (6), and a connecting wrench is installed at one end of the second screw rod (10) away from the insertion slot (5) and the bottom end of the first screw rod (6).

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