CN203532344U

CN203532344U - Mine local fan

Info

Publication number: CN203532344U
Application number: CN201320620570.1U
Authority: CN
Inventors: 贾宝山; 尹彬; 贾廷贵; 林立峰; 皮子坤; 王刚; 张师一; 王小云; 张强
Original assignee: Liaoning Technical University
Current assignee: Liaoning Technical University
Priority date: 2013-09-24
Filing date: 2013-09-24
Publication date: 2014-04-09
Anticipated expiration: 2023-09-24

Abstract

The utility model relates to ventilation equipment, in particular to a mine local fan which is suitable for being used in mine mining working faces and branch roadways. The mine local fan comprises a wind collecting device, a rectifying cover, blades, a pneumatic motor, an air inlet pipeline, a main machine case, an air exhaust pipeline and a rectifying blade. The pneumatic motor is mounted in an isolation box, a box shell of the isolation box is provided with double layers, an interlayer is filled with mute cotton, and the case wall of the main machine case placed on the periphery of the isolation box is provided with a cooling air inlet and a cooling air outlet respectively. Three mufflers are mounted on an outer shell of the main machine case and are placed on the two sides and in the middle of the main machine case respectively, and the inner walls, being in contact with the main machine case, of the mufflers are provided with steel wire meshes. The rectifying cover is of an integral structure formed by the fact that the rectifying cover is spun by a spinning mold. The blades are wing type twisted blades. The mine local fan is obviously improved on the aspects of noise reduction, heat dissipation, ventilation quantity and the like.

Description

Quo of local Fan for Mine

Technical field

The utility model relates to ventilation equipment, particularly a kind of quo of local Fan for Mine being applicable in mine excavation working surface and a tunnel.

Background technique

At present, there are two defects in the pneumatic extraction type local ventilator that existing mine excavation working surface and a tunnel are used, and the one, noise is large, and due to silencer not being installed, during its work, noise is much larger than 85db; The 2nd, weak heat-dissipating, the heat producing during pneumatic motor work, cannot spread out; The 3rd, ventilation is little, and pressure is low, existing pneumatic extraction type local ventilator air quantity be 100 cubes per minute, pressure is 800Pa, air quantity is little; The 4th, after cowling moulding all adopts segmentation blanking, volume is bored assembly welding all-in-one-piece method, welding rear surface circular arc can not rounding off, and not only surface quality is poor, and causes the whole runner of blower fan not round and smooth, worsened entry condition, the performance of ventilating of blower fan is degenerated.

Model utility content

The purpose of this utility model is to provide that a kind of noise is little, good heat dissipation, quo of local Fan for Mine that air quantity is large.

The purpose of this utility model is achieved through the following channels: a kind of quo of local Fan for Mine, it comprises wind collecting unit, cowling, blade, pneumatic motor, air inlet pipeline, main case, gas exhaust piping, straightener(stator) blade, described pneumatic motor is installed in shielded box, the case shell of described shielded box is double-deck, in interlayer, be filled with silencing cotton, be positioned on the shell wall of main case of shielded box periphery and be respectively equipped with a cooling air inlet and cooling exhaust outlet; Three bafflers are installed on the shell of main case, lay respectively at both sides and the middle part of main case, the inwall that described baffler contacts with main case is steel wire; The overall structure of described cowling for forming with spinning mold spinning; Described blade is wing blade twisted blade.

The utility model quo of local Fan for Mine aspect noise reduction, has increased silencing cotton in this programme on main case, in main case front end and back end, designed forward and backward baffler, with steel wire, replace punched-plate, and pneumatic motor has been installed in shielded box, greatly reduced noise; Aspect raising air quantity and pressure, adopted meander configuration blade, by taking above-mentioned measure, greatly reduce the noise of blower fan, improved air quantity and the pressure of blower fan; Adopt spinning mold by cowling overall thermal rotary press modelling, once-through, has reduced welding process, and the workpiece after moulding, together with wind collecting unit, has formed smooth passage, is more conducive to gas and is accelerated in runner.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, the utility model is described in further detail:

Fig. 1 is the utility model structural representation;

In figure, wind collecting unit 1, cowling 2, baffler 3, blade 4, pneumatic motor 5, air inlet pipeline 6, gas exhaust piping 7, cooling air inlet 8, shielded box 9, main case 1O, straightener(stator) blade 11, cooling exhaust outlet 12, steel wire 13.

Embodiment

As shown in Figure 1, a kind of quo of local Fan for Mine of the utility model, it comprises wind collecting unit 1, cowling 2, blade 4, pneumatic motor 5, air inlet pipeline 6, main case 10, gas exhaust piping 7, straightener(stator) blade 11, described pneumatic motor 5 is installed in shielded box 9, the case shell of described shielded box 9 is double-deck, in interlayer, be filled with silencing cotton, be positioned on the shell wall of main case 10 of shielded box 9 peripheries and be respectively equipped with a cooling air inlet 8 and cooling exhaust outlet 12, wind enters from cooling air inlet 8, from cooling exhaust outlet 12, go out, give shielded box 9 coolings; Three bafflers 3 are installed on the shell of main case 10, lay respectively at both sides and the middle part of main case 1O, the inwall that described baffler 3 contacts with main case 1O is steel wire 13; The overall structure of described cowling 2 for forming with spinning mold spinning; Described blade 4 is wing blade twisted blade.

During work, down-hole wind regime drives pneumatic motor 5 axles rotations after air inlet pipeline 6, after with the gas exhaust piping 7 of pneumatic motor 5, discharge.Pneumatic motor 5 band moving vane 4 rotations of rotation, the wind that blade 4 disturbances of High Rotation Speed are come in by wind collecting unit 1, penetrates along the straightener(stator) blade 11 in main case 1O.

The above; it is only embodiment of the present utility model; but protection domain of the present utility model is not limited to this; any those of ordinary skill in the art are in the disclosed technical scope of the utility model; the variation that can expect without creative work or replacement, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain that claims were limited.

Claims

1. a quo of local Fan for Mine, it comprises wind collecting unit (1), cowling (2), blade (4), pneumatic motor (5), air inlet pipeline (6), main case (10), gas exhaust piping (7), straightener(stator) blade (11), it is characterized in that: described pneumatic motor (5) is installed in shielded box (9), the case shell of described shielded box (9) is double-deck, in interlayer, be filled with silencing cotton, be positioned on the shell wall of the peripheral main case (10) of shielded box (9) and be respectively equipped with a cooling air inlet (8) and cooling exhaust outlet (12); Three bafflers (3) are installed on the shell of main case (10), lay respectively at both sides and the middle part of main case (10), the inwall that described baffler (3) contacts with main case (10) is steel wire (13); The overall structure of described cowling (2) for forming with spinning mold spinning; Described blade (4) is wing blade twisted blade.