SU65897A1 - Mine lift - Google Patents

Description

In the proposed lift, the lifting of vessels is carried out by means of compressed air, the use of which for this purpose in lifting technology itself is no longer new. Both vessels are moved in the two shafts of the shaft and, as usual, are connected by a rope, bending around an idle pulley mounted in the pile part of the elevator. “According to the invention, the elevator is provided with an original distribution of air inlet and outlet that acts on the vessel.

FIG. 1 shows a diagram of the lift; in fig. 2 - view along arrow A; in fig. 3 - scheme of the lift in the plan; in fig. 4 - lift cage; . in fig. 5 - detail of the cage; in fig, b - skip-stand.

The lifting unit is integrated into one with the fan unit. Both for lifting and for mine ventilation the same blower tube is used, which is in operation continuously. Due to this, the blower and motor are used most fully.

The elevator contains three vertical pipes of circular section. Air is sucked all the time along one pipe from the shaft, and the lifting vessels move in the color of the other.

The ends of the pipes intended for lifting vessels, rising above the surface of the earth, serve as headframes. At the very top of the copra mounted pulley, rounding the rope. The ends of the rope are attached to the lifting vessels. With the help of this rope and pulley, the balancing of the dead weights of the lifting vessels, as well as the synchronism of their movement, is achieved, as usual.

There are conductors for lifting vessels in the walls of the shafts. At the level of the upper and lower receiving platforms, holes are arranged in these trunks, through which loading and unloading of lifting vessels take place; these openings, during lift operation, are tightly closed with doors.

FIG. Figure 2 shows the location of the pipeline through which the blower, installed in close proximity to the shafts, is connected to the ventilation pipe and to the ventilation pipe, as well as to the atmosphere.

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The trunks are slightly lower than the lower receiving platform, communicating with each other through a special hole 7, which can be closed by a valve.

From the pulley axis, gears 8 and 9 are driven by a depth gauge and a speed indicator.

Let an empty lifting vessel be at the beginning of the lift at the top, in the left tube, and loaded at the bottom, in the right tube (Fig. 1).

Shiber 7, 2, 3, 4, 5 and 6 are in the position shown in FIG. 2 and 3 solid lines. Gate window 7 is open. Shibers 5 and b overlap in the position indicated by the dotted line only in special cases when it is necessary to inject air into the shaft.

Due to the gate 5, the blower can be alternately used for lifting and for ventilation.

At the beginning of the lift, the driver switches the gate 4 to position 4. Then, air will be blown out of the blower into the left riser pipe and partly flow into the diffuser and then into the atmosphere. The amount of air flowing into the diffuser, together with leaks in different places of the lifting installation, will amount to some flow rate, which will be the minimum flow of the blower, ensuring maximum pressure during steady operation.

Due to the pressure difference above and below the lifting vessel, the system consisting of lifting vessels and a rope will be set in motion. At the same time, air from the right lifting tube will go through the diffuser to the atmosphere, and from the left - through window 7 to the right tube.

By turning the spike 4 in a certain way, the desired law of movement of the lifting vessels can be implemented.

During the pause (or even during the deceleration period), the gate 4 opens the air outlet to the diffuser completely; at the same time, the number of revolutions of the blower is reduced. In this case, the blower works only as a fan. To adjust the number of o310

of companies, it is rational to replace the electric drive in the form of a cascade unit of the Kremer system.

At the end of the lift, the gates 7, 2 to 3 are automatically moved to dotted positions. The gate of the window 7 is closed, as a result of which braking is effected. Although the ascent can be fully automated, still in the event of a re-ascent, deaf sections of the lifting pipes are provided above the upper receiving platform and below the lower one into which the lifting vessels compress the air and stop smoothly.

In the event of a cable break, the axis of the pile pulley is unloaded and, thanks to a special counterweight, one or both of the axle bearings are raised a little.

As a result, the electrical circuit is broken, air is released from a special cylinder near the lower receiving platform, and the window 7 is closed with the weight of the cargo. The air below the elevated vessels begins to compress and the lifting vessels reach the lower receiving platform at a low speed, where they are fists.

In order to lift the vessels upward, the bypass pipes 70 and 77 alternately block. With the pipe 70 and 77 open, the left vessel rises up. Attaching a rope to it, lower it down again. Then the pipe 70 is opened and the 77 is closed, the right vessel is lifted up and the second end of the rope is attached to it.

Due to the cylindrical shape, the cage (Fig. 4) is quite rigid with a relatively low weight. In the upper and lower parts there are labyrinths, which are shown separately in FIG. five.

Since the cage does not touch the walls, the labyrinth can be assembled from plywood rings, enclosing them between the iron ones, of which the lower one is fixed on the cage skeleton and the upper one is loosely worn. System bolt rings.

The basic structure of the stand is shown in FIG. b.

Subject invention

Claims (5)

1. A mine hoist containing two mutually balancing vessels moving in two shafts of the mine under the action of air pressure difference in both barrels created by a blower, characterized in that the shafts are provided with air inlet ports in the upper part and the lower part is connected window 7. 2. The form of the lift according to claim 1, characterized in that, in order to be able to brake the vessels at the end of the path, The window 7 is equipped with a locker, which overlaps it at the end of the vessels stroke. 3. The form of the lift according to claim 1, characterized in that the channel that supplies the compressed air from the blower is equipped with a gate 5, blocking the access of compressed air to the barrel of the lift when the lift stops and opens the air to the vent FIG. one channels, which gives the opportunity to alternately use the blower for lifting purposes and for ventilation purposes. 4. The form of the elevator according to claim 1, characterized by a tel1, that for braking and lifting a broken vessel, the space of each shaft of the shaft under the vessel in the lowest position is connected by pipe 70 or 11 with the space above the vessel, and gate 7: coupled with a pile part so that when a rope breaks - automatically overlaps window 7. 5. The form of the device according to claim 4, characterized in that, in order to automatically close the window 7, the idle unit is mounted on a fixed shaft, which, when the rope is broken, is slightly raised by springs and cuts off the current in the network of the device holding the gate, due to which the latter falls and overlaps the window 7. FIG. 2 FIG. 3 FIG. four FIG. 6 FIG. five