Fan of the main airing

 

The invention relates to the mining industry and can be used for ventilation of mines. The technical result of the invention is the compactness of the set up, free access to individual fans and ensuring the use of the fan installed in the suction and discharge performance without additional structural changes. For this installation contains multiple (more than two) centrifugal fans located on both sides of installed under each other injection and suction channels connected with the diagonally arranged holes in a square wall vertical reverse carton, with double lagoi on the horizontal axis. Holes connecting the mine and the atmosphere with reversing box, formed in the surfaces diagonally opposite amounts reversible boxes respectively at the opening of the inlet of the upper channel and over the hole in the bottom of the channel. 2 C.p. f-crystals, 6 ill.

The invention relates to the mining industry and can be used for ventilation of mines.

Known mine ventilation installation, working with the x can be used as reversible and non-reversible axial fans, and non-reversible centrifugal fans.

The most powerful efficiency of the fan units is achieved by ventilation of mines operating at full capacity.

The construction of the main fan installations ventilation, requiring large capital expenditures before the start of mines economically impractical.

The trend of using multiple (one or more) business fans with one back fan, and the commissioning of additional fans shall be in accordance with the extension to the mine workings. In addition, the presence in the work (and reserve) several fans increases the efficiency and reliability of the fan units.

Known mine ventilation installation (see SU 682654, IPC 7 E 21 F 1/08, 30.08.1979) with multiple centrifugal fans mounted on a swivel sites that are hosted on a common platform. Translation reserve the fan work is carried out by moving the platform over vostokovedenie channels using a complex gear mechanism.

A disadvantage of the known installation: the complexity of the design. Closest to the invention is ventilate and discharge channels with a shared area, which has double leaf folding doors on the vertical axis, and the working and redundant fans are located between the channels and connected with them by the nipples with folding doors on the horizontal axis.

The disadvantages of the prototype should include: - a large area occupied by the fan installation, which is especially important in crowded conditions okolozemnogo and unloading of the court:

- difficult access (especially in winter) to the first fan;

- failure to install air preheaters above suction diffuser in the case of injection ventilation unit because of the location over the General area of the channels drive double folding doors.

The aim of the invention is the compactness of the set up, free access to individual fans, the use of a fan system in any performance (suction or discharge) without additional structural changes.

In the invention, representing a ventilation unit of the main airing with centrifugal fans connected by pipes with parallel injection and suction channels with a shared area with double lagoi connected with mine and atmosphere, the total land untilnow axis, channels of nozzles are arranged one above the other and connected with the diagonally arranged holes in a square the side surface of the reverse of the box, with holes in the reverse box for messages with mine and atmosphere are placed in the surfaces diagonally arranged volumes reversible boxes respectively under the entrance hole of the upper channel and over the hole in the bottom of the channel. The orifices in the reverse box for messages with the charge and the atmosphere are in the horizontal surfaces of the reversing box. When made (offset) heaters for heating air in the discharge of the fan installation hole in reversing box for messages with mine and atmosphere can be located in its side surface with an input hole injection and suction channels.

The invention is illustrated in the drawing, where Fig.1, 2 shows the discharge fan with heater on reverse box, side view and top; Fig.3 shows the discharge fan made by truck; Fig.4 shows the suction fan with diffuser above the horizontal surface reversioning fans 1 and 2, connected by branch pipes 3, 4 and 5, 6 to the discharge channel 7 or 8 and the suction channel 9 and 10. With the overall plot, which is made in the form of a rectangular vertical reverse of the box 11 with double lagoi 12 on the horizontal axis. Channels of nozzles are arranged one above the other and connected with diagonally spaced holes 13 and 14 in a square the side surface of the box 11, which is connected with the mine and the atmosphere through the openings 15 and 16 and holes 17 and 18 in the surface diagonally arranged volumes reversible boxes are located respectively below the hole 13 and above the openings 14.

The diffuser 19 suction fan system can be installed over the reverse box. When the injection performance of the ventilation unit reversing box 11 may be connected to the atmosphere through the heater 20 or pronounced heater 21.

When working pressure ventilation unit (Fig.1 and Fig.3) the air from the atmosphere is absorbed in reversible box 11 through the heater 20 and the opening 16 or through the heater 21 and the hole 18. When the vertical position of the bivalve Lyady 12 air through the hole 14 is sucked into the channel 9 and the nozzles 4 three of the four centrifugal veins is lately channel 7 and the hole 13 is fed again in the reverse box 11, and from it through the hole 15 or 17 in the shaft.

The reversal of the air flow is carried out without stopping the fan installing folding folding door 12 in a horizontal position in which the lower suction duct 9 through the opening 14 and the opening 15 and 17 connected to the shaft, and the upper discharge channel 7 through the hole 13 and the hole 16 and heater 20 (Fig.1) or through the hole 18 and heater 21 (Fig.3) communicates with the atmosphere.

When operating the suction fan installation main ventilation (Fig.4) air is sucked in from the mines in the reverse box 11 through the opening 15 and vertical position folding folding doors 12 through the opening 13 enters the upper suction channel 10, and then through the nozzles 6 in three working fan 2, of which under pressure through the nozzles 5 and the lower discharge channel 8 is fed in the reverse box 11 through the opening 14 and out of the box 11 through the opening 16 in the diffuser 19.

When reversing suction fan installation bivalve lyada 12 is installed in a horizontal position.

At the top of the suction channel 10 through the opening 13, the hole 16 and the diffuser 19 is communicated with the atmosphere, and the lower discharge channel 8 through the space in the cramped conditions of the mine yard defines the advantages of ventilation unit of the main airing.

Claims

1. Fan of the main airing with centrifugal fans connected by pipes with parallel suction and discharge channels with a shared area with double lagoi connected with mine and atmosphere, characterized in that the total area is made in the form of a vertical rectangular boxes with reversible double lagoi on the horizontal axis, the channels of the nozzles are arranged one above the other and connected with the diagonally arranged holes in a square the side surface of the reverse of the box, with holes in the reverse box for messages with mine and atmosphere are placed in the surfaces diagonally arranged volumes reversible boxes respectively under the entrance hole of the upper channel and over the hole in the bottom of the channel.

2. The fan installation according to p. 1, characterized in that the holes in the reverse box for messages with mine and atmosphere are located in the horizontal surfaces of the reversing box.

3. The fan installation according to p. 1, characterized in that the holes in the reverse box for messages with mine and atmosphere are located in its side surface, opposite b is

 

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