Ventilation device of ball mill

Abstract

The utility model discloses a ball mill ventilation device which comprises a shell and a mounting bracket, the shell is fixed on the mounting bracket, a motor is fixed in the shell through a bracket, and fan blades are fixed on a driving shaft of the motor along the circumferential direction; the shell is trumpet-shaped, a honeycomb-shaped sound insulation pore plate is laid on the inner wall of the shell, the end, with a larger opening, of the shell is an air outlet end, a metal protective net is fixed to the air outlet end, the end, with a smaller opening, of the shell is an air inlet end, a guide cylinder is fixed to the air inlet end, and a ventilation hose is connected to the guide cylinder. The ventilation device is simple in structure, convenient to maintain, low in machining cost, high in working efficiency and good in practicability.

Description

Technical Field

[0001] The utility model belongs to the field of ventilation equipment, in particular to a ventilation device for a ball mill. Background Art

[0002] At present, when the ball mill is under maintenance and liner replacement, an industrial axial flow fan is installed at the discharge end to ventilate the inside of the ball mill. This ventilation method has a high space occupancy rate, high noise, and low ventilation efficiency. Moreover, during the maintenance process, gas cutting will produce a large amount of toxic and harmful gases, and poor ventilation seriously threatens the health of maintenance personnel. Utility Model Content

[0003] In view of the problems existing in the above-mentioned background technology, the utility model discloses a ball mill ventilation device to achieve low-noise and high-efficiency maintenance ventilation.

[0004] The utility model adopts the following technical solutions:

[0005] A ball mill ventilation device comprises a shell and a mounting bracket, wherein the shell is fixed on the mounting bracket, a motor is fixed inside the shell through the bracket, and fan blades are fixed circumferentially on the driving shaft of the motor; the shell is in the shape of a trumpet, and a honeycomb-shaped sound insulation plate is provided on the inner wall of the shell, the larger opening end of the shell is an air outlet end, a metal protective net is fixed on the air outlet end, the smaller opening end of the shell is an air inlet end, a guide tube is fixed on the air inlet end, and a ventilation hose is connected to the guide tube.

[0006] Furthermore, the height of the mounting bracket is the same as the height of the ball mill fixed bracket, which facilitates and quickly ventilates the inside of the ball mill and avoids secondary adjustments on site.

[0007] Compared with the prior art, the utility model has the following beneficial effects:

[0008] The adoption of the above technical scheme makes the ventilation inside the ball mill more convenient and effective. Under the premise of ensuring the ventilation effect, it greatly saves the space occupied by the fan in the ball mill maintenance site. It is suitable for ventilation work during ball mill maintenance and effectively reduces noise. The utility model has the advantages of simple structure, easy maintenance, low processing cost and high work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of the front structure of the utility model (without metal protective net).

[0010] Figure 2 It is a side structural schematic diagram of the utility model.

[0011] In the figure, 1-shell, 2-mounting bracket, 3-motor, 4-fan blades, 5-sound insulation plate, 6-metal protective net, 7-guide tube. DETAILED DESCRIPTION

[0012] The utility model is further explained below in conjunction with the accompanying drawings.

[0013] like Figure 1-2 As shown, a ball mill ventilation device includes a shell 1 and a mounting bracket 2, the shell 1 is fixed on the mounting bracket 2, a motor 3 is fixed inside the shell 1 through the bracket, and fan blades 4 are fixed circumferentially on the driving shaft of the motor 3; the shell 1 is in the shape of a trumpet, and a honeycomb-shaped sound insulation plate 5 is laid on the inner wall of the shell 1, the larger opening end of the shell 1 is the air outlet end, and a metal protective net 6 is fixed on the air outlet end, the smaller opening end of the shell 1 is the air inlet end, and a guide tube 7 is fixed on the air inlet end, and a ventilation hose is connected to the guide tube 7.

[0014] When in use, since the height of the mounting bracket 2 is the same as the height of the ball mill fixed bracket, it can be aligned with the discharge end of the ball mill to achieve ventilation; start the motor 3, and the motor 3 drives the fan blades 4 to rotate forward or reverse to achieve blowing or exhausting; it should be noted that when the ventilation device is exhausting, the ventilation hose is placed on a flat ground and is not connected to the air supply pipe, and when the ventilation device is blowing, the ventilation hose is connected to the external air supply pipe. When the ventilation device is working, since the inner wall of the shell 1 is provided with a honeycomb sound insulation plate 5, the noise is much lower than that of an industrial axial flow fan, which protects the ears of the maintenance personnel inside the ball mill and avoids hearing loss.

[0015] During the operation of the above device, a universal wheel with a brake can be installed at the bottom of the mounting bracket 2 to facilitate on-site transportation. Compared with the original ventilation method using an industrial axial flow fan, the steps of adjusting the height of the axial flow fan and fixing the axial flow fan on site are omitted, and the ventilation direction can be flexibly adjusted according to the internal maintenance operation of the ball mill, reducing the working noise and having good practicality.

Claims

1. A ball mill ventilation device, characterized in that: The invention comprises a shell (1) and a mounting bracket (2), wherein the shell (1) is fixed on the mounting bracket (2), a motor (3) is fixed inside the shell (1) via the bracket, and fan blades (4) are fixed in a circumferential direction on the drive shaft of the motor (3); the shell (1) is in the shape of a trumpet, and a honeycomb-shaped sound insulation plate (5) is provided on the inner wall of the shell (1); the end of the shell (1) with a larger opening is an air outlet end, and a metal protective net (6) is fixed on the air outlet end; the end of the shell (1) with a smaller opening is an air inlet end, and a guide tube (7) is fixed on the air inlet end, and a ventilation hose is connected to the guide tube (7).

2. A ball mill ventilation device as claimed in claim 1, characterized in that: The height of the mounting bracket (2) is the same as the height of the ball mill fixed bracket.

Images