SU1328539A1 - Arrangement for airing mine workings - Google Patents

Abstract

The invention relates to the mining industry and m. used in mining. The purpose of the invention is to enable the device to operate in cooling and air cleaning modes. The device includes a housing (K) 1 connected to the inlet and outlet with the supercharger c. A fan 19 is installed. In front of the supercharger, C 1 has a cylindrical enclosure 17 with openings 20 at the outlet end and heat transfer sections 18. On the outer side, К 1 is fixed with an annular gap 11 between the walls of К 1 and an ejector 2 consisting of a diffuser 3 , receiving mouth 4 and perforated 2

Description

of the ring 5 forming the slit 6 with it. Compressed air is fed through the valve 8, ptang 9 and the annular chamber 10, from where it emerges through the slits 6. Before the neck 4 a nozzle 12 is fixed, through which water is fed into the gap 11 x 18 purified air is cooled with the help of the x.agent agent. In order to completely clean the air in K, a package of corrugated plates 26 is placed. On the outlet part of the diffuser 3 there is a drop-catch1

 The invention relates to the mining industry and can be used for ventilation and cooling of air in mines and in the extraction of minerals in deep mines.

The purpose of the invention is to provide the possibility of operating the device in the modes of cooling and air purification.

FIG. a device for ventilation of mine workings with an automatic control circuit of a longitudinal section; FIG. 2 is a view A of FIG. 1; on fig.Z - view B in figure 1.

The device for airing air contains a cylindrical body, on the outside of which is an rigidly fixed ejector 2, consisting of a diffuser 3, a receiving neck 4, a perforated ring 5 forming with the receiving neck 4 annular slots 6, the gaps of which are regulated by gaskets 7. Compressed feed air is produced through the valve 8, the hose 9 and the annular chamber 10, from where it exits through the slots 6.

The ejector 2 is fixed on the cylindrical body 1 with an annular gap 11 between the walls of the cylindrical body 1 and the diffuser 3 so that the expanding part of the gap is directed to. the expansion side of the diffuser 3; An annular nozzle 12 is fixed on the cylindrical housing 1 in front of the receiving neck 4 with a gap, connected through an annular channel 13, a hose 14 and a tap 15 to a water main. Annular nozzle 12 with its slot 16

28539

The coil 22 has guiding rotary valves 23 and a punched baffle 25 fixed in the center of the plate 26. The device is operated in three modes: airing, air cooling with heat suppression, air blowing and its cooling with heat suppression. In each mode, the valves 23 are set in a different position, the fan 19, depending on this, is opened or closed, 3 sludge.

directed inside the annular gap 1 between the walls of the diffuser 3 and the cylindrical body 1.

Inside the cylindrical body 1

there is a cylindrical casing 17 with heat exchange sections 18 and a fan 19 5 in the wall of the cylindrical casing 17 in front of the fan 19 there is an opening at the outlet end

20 to remove the mixture of water and drink. A cylindrical housing with heat exchange sections and a fan can be removed from the device, thereby facilitating its delivery to the place of operation. The cooled air enters the workplace through the air duct 21.

At the exit of the diffuser 3 is a conical drip catcher

22 having rotary valves 23 with an adjustment knob 24, a perforated distributor bump 25, a stack of corrugated plates 26, a port 27 for removing sludge and a mixture of water and dust. The conical droplet separator 22 is made removable for washing and cleaning its inner surface, made with porous material 28.

Supply and removal of heat transfer fluid to the heat exchange sections is carried out through locking valves 29.

The system is installed in the case of the air ventilation device.

automatic control of operating modes. The automatic adjustment of the positions of the rotary switches is carried out with the help of the relay 30

ka installed on the pipe 31 for supplying water to the heat exchange sections. At the same time, the same switch switches the fan on and off.

The device for airing air can be operated in three modes: airing mode, air cooling mode with dust suppression, and air ventilation mode and its cooling with dust suppression.

In the mode of ventilation, the device operates as follows.

Compressed air is fed through the valve 8 and the hose 9 into the annular chamber 10 of the ejector 2, from where it exits at supersonic speed through the annular slots 6, creating a vacuum on the inner surface of the receiving neck 4, supplying air from the atmosphere, which then enters the annular gap I1 between the walls a cylindrical body 1 and a diffuser 3. In the annular gap 11, by means of an annular nozzle 12, water is supplied through the slot 16 from the annular channel 13 through the hose 14 and the valve 15. In the annular gap 11, air-water is formed into the mixture, which moves with great speed at the exit of the diffuser 3. The butterfly valves 23 are set to the position C in the conical droplet catcher.

22, and the air-water flow along the COL

The target clearance 11 is in the winding zone. The fan is off in this case.

In the air cooling mode, the device operates as follows.

Rotary dampers are installed in the Oa position on the conical droplet separator 22, the fan 19 is activated, the entrance to the air-to-water flow in the conical dropper 22 opens, where due to centrifugal forces, solid dust particles are pressed to the inner part of the conical dropper catcher 22 and the walls form a stream of water mixed with drinking; the inner porous material 28 absorbs this mixture and gradually it moves to the nozzle 27 for removal. At the same time, the perforated baffle distributor 25 directs the air-water flow evenly to all heat exchange sections 18, and the solid particles from the air and wetted drink are also removed through the perforations and flows into

28539.

the lower part of the conical droplet separator 22 and is removed through the nozzle 27. A set of corrugated plates 26 in the center of the device is installed for a more complete air purification.

Thus, the purified and directed air flow enters the heat exchange sections, where

The 1Q flow is cooled by a coolant circulating inside the sections, and the condensate formed on the surface of the heat exchange sections is moistened with residual dust, which is removed

15 through hole 20. Cooling and

the purified air flow through the air duct 21. is directed locally to the work places.

When the device for ventilating air 2Q is operated at the same time for airing and cooling the air, the butterfly valves are set to Ov and the fan is on. Air flow is distributed: a part of the air for airing, and a part of it for cooling.

Claims (1)

Apparatus of the Invention A device for aerating mountain workings, comprising a hull, an inlet and outlet connected to a supercharger, an ejector mounted on the housing with the possibility of forming an annular gap, connected to a compressed air supply system and having a receiving neck and a diffuser with inlet and outlet parts, as well as an annular nozzle fixed to the housing and connected to 4Q highway, with the fact that, in order to enable the device to operate in cooling and air cleaning modes, it is equipped with a cylindrical casing, g heat exchanging sections, a package of corrugated plates and a droplet separator with directional butterfly valves; in this case, a cylindrical housing with heat exchanging sections is installed gQ inside the case in front of the supercharger, made in the form of a fan, with a package of corrugated plates mounted on the inlet of the case, and a drip catcher with directional butterfly valves mounted on the outlet part of the diffuser, while the droplet separator is equipped with a perforated damper fixed in its center in front package of corrugated plates. 35 55 di8b Fi.T Fi.2