An internal speed reduction swing type grinding air duct

Abstract

The utility model relates to the technical field of grinding mills, specifically an internal reduction pendulum type grinding air duct, comprising an air duct assembly arranged on a grinding mill base, the air duct assembly comprising a lower plate installed on the base, an air duct plate installed on the lower plate, and a fixing ring installed on the air duct plate, the air duct plate being arranged at an angle, the air duct plate being movably installed between the lower plate and the fixing ring, and the number of the air duct plates being at least one; a fixing block is arranged at the connection between the air duct plate, the lower plate and the fixing ring, and a groove matched with the fixing block is provided on the lower plate and the fixing ring; a fixing piece for fixing the air duct plate is arranged on the air duct plate, and the device can adjust the angle of the air duct plate by arranging the fixing piece, the fixing block and the groove, and then the adjusted angle is fixed to the air duct plate by the fixing piece, so that the angle of the air duct plate can be effectively controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding mills, in particular to an internal speed reduction swing type grinding air duct. Background Art

[0002] The existing grinding mill air ducts are all linear air ducts, that is, the windward surface of the air duct plate arranged on the lower plate of the grinding mill base is a plane. For example, the application number of China's utility model is: 2009200888898, which is a low-resistance suspended roller mill curved surface air duct. The device is arranged at an angle through multiple air duct plates. At the same time, the windward surface of the air duct plate is an arc-shaped curved surface, and the wind surface is arranged into an arc-shaped curved surface structure. Therefore, the airflow guided by the curved surface air duct during operation can well avoid collisions between airflow molecules and reduce collision friction between the airflow and the air duct plate, greatly reducing the energy loss of the airflow in the grinding mill, reducing the energy consumption of the grinding mill, and achieving the purpose of energy saving and consumption reduction.

[0003] Although the above device can effectively reduce the energy consumption of the grinding mill, the air duct plate is generally fixed inside the air duct, and the angle of the air duct plate cannot be tilted or adjusted. The wind resistance can be effectively controlled according to the different inclination angles of the air duct plate. At this time, a new air duct is needed to solve the above problem. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides an internal speed reduction swing type grinding air duct.

[0005] The utility model provides an internal reduction pendulum mill air duct, comprising an air duct assembly arranged on a grinding mill base, the air duct assembly comprising a lower plate installed on the base, an air duct plate installed on the lower plate, and a fixing ring installed on the air duct plate, the air duct plate is arranged at an angle, the air duct plate is movably installed between the lower plate and the fixing ring, and the number of the air duct plates is at least one; a fixing block is arranged at the connection between the air duct plate, the lower plate and the fixing ring, and a groove matched with the fixing block is opened on the lower plate and the fixing ring; a fixing piece for fixing the air duct plate is arranged on the air duct plate.

[0006] Preferably, the air duct plates are arranged circumferentially on the lower plate.

[0007] Preferably, the fixing member comprises fixing strips installed on both sides of the air duct plate, a positioning hole is opened on the lower plate, and the fixing strips are fixed to the positioning holes by bolts.

[0008] Preferably, the number of the positioning hole is at least one.

[0009] Preferably, the groove is arranged on the outer peripheral surface close to the fixing ring.

[0010] Compared with the related art, the internal reduction pendulum mill air duct provided by the utility model has the following beneficial effects: the device can adjust the angle of the air duct plate through the setting of fixing parts, fixing blocks and grooves, and then fix the air duct plate with the adjusted angle through fixing parts, so that the angle of the air duct plate can be effectively controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional diagram of the utility model;

[0012] Figure 2 It is a top sectional view of the utility model.

[0013] Numbers in the figure: 1, air duct plate; 2, lower plate; 3, fixing ring; 4, fixing strip; 5, fixing block. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0015] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0016] See also Figure 1 or Figure 2 As shown, an internal reduction pendulum mill air duct provided by an embodiment of the utility model includes an air duct assembly arranged on a grinding mill base, the air duct assembly includes a lower plate 2 installed on the base, an air duct plate 1 installed on the lower plate 2, and a fixing ring 3 installed on the air duct plate 1, the air duct plate 1 is arranged obliquely, the air duct plate 1 is movably installed between the lower plate 2 and the fixing ring 3, and the number of air duct plates 1 is at least one; a fixing block 5 is provided at the connection between the air duct plate 1, the lower plate 2 and the fixing ring 3, and grooves adapted to the fixing block 5 are provided on the lower plate 2 and the fixing ring 3; a fixing piece for fixing the air duct plate 1 is provided on the air duct plate 1.

[0017] In this embodiment, the angle of the air duct plate 1 can be adjusted by setting the fixing member, the fixing block 5 and the groove, and then the adjusted angle is fixed to the air duct plate 1 through the fixing member, so that the angle of the air duct plate 1 can be effectively controlled.

[0018] The air duct plate 1 is arranged circumferentially on the lower plate 2 .

[0019] The fixing member comprises fixing strips 4 installed on both sides of the air duct plate 1. Positioning holes are opened on the lower plate 2. The fixing strips 4 are fixed to the positioning holes by bolts. There is at least one positioning hole.

[0020] In this embodiment, the fixing strip 4 is effectively fixed to the positioning hole by bolts, and a plurality of positioning holes can effectively fix the air duct plate 1 at different angles.

[0021] The groove is arranged on the outer peripheral surface close to the fixing ring 3 .

[0022] In this embodiment, the air duct plate 1 can only be adjusted at one end away from the groove, so that the airflow can be better guided.

[0023] At least one of the air duct plates 1 is fixed between the lower plate 2 and the fixing ring 3, so that the fixing ring 3 can be effectively fixed and thus prevented from falling off.

[0024] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An internal speed reduction pendulum mill air duct, comprising an air duct assembly arranged on a mill base, the air duct assembly comprising a lower plate (2) mounted on the base, an air duct plate (1) mounted on the lower plate (2), and a fixing ring (3) mounted on the air duct plate (1), the air duct plate (1) being arranged at an angle, characterized in that: The air duct plate (1) is movably mounted between the lower plate (2) and the fixing ring (3), and the number of the air duct plate (1) is at least one; A fixing block (5) is provided at the connection between the air duct plate (1), the lower plate (2) and the fixing ring (3); and a groove matching the fixing block (5) is provided on the lower plate (2) and the fixing ring (3); The air duct plate (1) is provided with a fixing piece for fixing the air duct plate (1).

2. The internal speed reduction pendulum mill air duct according to claim 1 is characterized in that: The air duct plate (1) is arranged circumferentially on the lower plate (2).

3. The internal speed reduction pendulum mill air duct according to claim 1 is characterized in that: The fixing member comprises fixing strips (4) mounted on both sides of the air duct plate (1), a positioning hole is provided on the lower plate (2), and the fixing strips (4) are fixed to the positioning holes by means of bolts.

4. The internal speed reduction pendulum mill air duct according to claim 3 is characterized in that: The number of the positioning hole is at least one.

5. The internal speed reduction pendulum mill air duct according to claim 1 is characterized in that: The groove is arranged on the outer peripheral surface close to the fixing ring (3).

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