SU125183A2 - Device for loading solid materials into conduit - Google Patents

Description

BASIC Auth. St. No. 111133 describes a device for loading solid materials into a pressurized conduit, made in the form of a lock chamber, alternately communicated by means of valves with a material hopper and with a conduit.

In this device, a hydraulic compensator made in the form of a hydrodillet equipped with a plunger serving as a reservoir for displacing material is used to eliminate the oncoming flow of water displaced from the sludge chamber by the material entering it, which slows down the load. After the message is disconnected, the chimney with the hopper returns to the chamber under the pressure of the plunger.

A distinctive feature of the device being detected is that, in order to prevent solid particles from falling into the hydraulic compensator, the compensator chamber is divided into two cavities by an elastic diaphragm, one of which communicates with the gateway and the second alternately with the suction or discharge nozzle of the pump creating in the chamber, it is positive, then negative.

For the organization of continuous loading of materials, one water conduit is interfaced with two similar devices operating alternately and powered from one pump.

The chambers of both compensators are alternately filled with a liquid (for example, oil) with a specific weight below one and not displaceable with the water pumped by the pump.

No. 1251832

FIG. 1 is a schematic diagram of the device; in fig. 2- diagram of the hydraulic compensator.

The device consists of ponarios 1, 2, 3 and 4 located one above the other, communicating with chambers 5 and hydraulic compensators. The chambers /, 2, 3 and 4, respectively, are equipped with valves 7, 8, 9 and W. In addition, the upper chambers 1 and 3 are equipped with loading crowns 11 -k 12. The system includes a conduit 13, equipped with valves 14 and 15, slurry pipe 16, high-pressure pump 17 and switch 18 with spool 19.

Before putting the device into operation, valves of 8 m 9 are closed, and valves 7 and 10 are opened. In this case, the water line 13, the slurry line 16 and the chambers 2, 3, 4 and 6 are filled with water under pressure, and the chamber 5 is filled with mineral oil. After that, oil is pumped into chamber 6 by pump / 7 through spool switch / 5, which is sucked from chamber 5 and displaces water from conduit 6 through chamber 4 into conduit 13 and slurry line 16. When oil in chambers 5 and 5 reaches the levels indicated in FIG. 1 with a solid line, valves 7 and 10 are closed. As soon as the clamps 7 10 are closed, the spool 19 of the switch 18 moves to the lower position shown by the dotted line, and the oil from the chamber 6 begins to be pumped out by the pump 17 into the chamber 5, and water is forced out of it. At the same time, the pressure in the chamber 3 drops, and in the calxer / increases, and the valves 8-9 open easily.

When pumping out oil from chamber 6, it is filled with water from the chamber, due to which the water level in the latter is lowered. At this time, a portion of the loaded solid material is fed to the chamber 3 through the feed funnel 12 with a corresponding dispenser (not shown in the diagram). After loading material into chamber 3, when the oil in chambers 5 and 6 of the hydraulic compensators reaches the level shown in dotted lines, valves S and 5 are closed. In this case, the spool 19 is moved again to the upper position, and the oil is pumped from chamber 5 to chamber 0. The pressure in chamber 5 drops, and in chamber 6 it increases, and valves 7 open to LO.

The solid material loaded into chamber 3 is pushed into chamber 4, picked up by a stream of water coming from conduit 13, and carried to pulpovode 16. Water, displaced by oil from chamber 6 into chamber 3, causes the solid material to fall from chamber 3 to chamber 4. At the same time, when the oil is pumped from chamber 5 to chamber 6, a new portion of solid material is loaded into the chamber / through the hopper 11, and the process proceeds as described, and the loading cycles can be repeated as many times as necessary. When solid material is loaded, water from the conduit 3 is directed by valves 14 and 15 alternately into chambers 2 and 4, and the opening and closing of valves 14 and 15 are performed simultaneously with the opening and closing of valves 8 and 10. The spool actuator 19, valves 7 8, 9 and 10 and the valves 14 and 15 are automatically carried out by means of hydraulic cylinders.

In order to prevent solid particles from entering the chambers 5 and 6 of the hydraulic compensators, movable membranes 20 made of elastomer material are installed in the chambers (Fig. 2). The pump 17 does not operate on oil, but on water, and in this case the membranes 20 prevent small abrasive particles of the feed material from entering the water. Mechanical loading membranes are not carried, since the water pressure on both sides of the membranes is always odipakovo. The membrane, made in the form of a tank, changes its volume with a change in the volume of the pure water supplied by the pump 17. In FIG. 2 flat line izobo