SU1810535A1 - Device for drying and tamping of holes - Google Patents

Description

The invention relates to the comprehensive mechanization of blasting in mining industry, and may find application in the drainage of blast holes before loading their explosives and jamming with foam gel after loading explosives.

The purpose of the invention is the expansion of functionality.

The device can be used both for drainage of flooded wells with foam and plugging of wells with foam gel, and only for plugging of dry wells with foam gel. The use of water to create a foam gel that is removed from blast holes during their drainage will improve sanitary and hygienic working conditions, and will increase the productivity of the device, because there is no need to deliver water to the block, which makes up 90% of the composition of the foam gel, will allow the use of a non-waterproof blasting agent for charging drained (54) DEVICE FOR DRYING AND STOPPING WELLS (57) Use: comprehensive mechanization of blasting in the mining industry when draining blast holes before loading them EXPLOSIVES and jamming with foam gel after loading with explosives. SUMMARY OF THE INVENTION: it is equipped with a hydraulic tank connected by a check valve to a flexible sleeve with a drain funnel at the end. It is equipped with two additional metering pumps, two containers for gelling components. They are connected to the mixer by means of a feeder, and to the air collector by means of a crane. 1 ill.

wells, will reduce air pollution by explosion products.

This goal is achieved in that a device for drainage and stemming of wells, including an air collector connected to a compressor, and through a purge valve with a mixer, a container for foaming fluid connected to a metering pump; the hose for supplying foam and foam gel to the well is equipped with a hydraulic tank connected via a non-return valve with a flexible sleeve having a drain funnel at the end, two additional metering pumps, two containers for gel-forming components, which are connected to the mixer by means of a feeder, and to the air collector by means of a tap .

The drawing shows a schematic diagram of a device.

1810535 A1

The device comprises a compressor 1 with an air collector 2 connected through a purge valve 3 and a mixer 4 with a hose 5 for supplying foam to the well, a valve 6 for supplying a foaming agent, connected through a pipeline to a metering pump 7 for foaming liquid. Mix 4 is connected to the air collector 2 through a pressure reducing valve 8, the metering pump 7 is connected to a container 9 for foaming liquid through a non-return valve 10 and to the mixer 4 through a non-return valve 11. The device has capacities 12 and 13 for gel-forming components connected to metering pumps 14 15 through check valves 16,

17. The over-piston cavities of the metering pumps 14.15 are connected to the air collector 2 through the clan 18, and the cavities under the piston are connected to the feeder 19 through the check valves 20.21. The feeder 19 is connected to the air collector 2 by means of a valve 18 through a pressure reducing valve 22. The device is equipped with a hydraulic tank 23. connected to the air collector 2 by means of a valve 18. The hydraulic tank 23 is connected to a drain funnel 24 through a flexible sleeve 25 and a check valve 26, and with a feeder 19 through non-return valve 27. Feeder 19 is connected to the mixer

4. The cavities of the purge valve 3 are connected by a pipe 28 through end valves 29,30, which are mechanically blocked with the valves 6, 18. The manipulator 31 is connected to a drain funnel 24. A flexible hose 5 is wound on a drum 32. At the end of the flexible hose there is a nozzle 33,

When preparing the device for operation in flooded wells, it is installed near the well into which the drainage funnel 24, Hose 5 with nozzle 33 are mounted with a manipulator 31, reeled from drum 32 and lowered to the bottom. wells.

Compressed air from the compressor 1 enters the air collector 2 and from it to the purge valve 3, which in the normal position is closed by a spring-loaded membrane and compressed air looped in the pipe 28 through the end valves 29 and 30. Since the valve 6 is connected to the atmosphere, the foaming substance from the tank 9 through a check valve 10 is sucked under the action of a spring into the metering pump 7. A similar valve 18 ensures filling of the metering pumps 14.15 with gel-forming components from containers 12, 13.

When the valve 6 is turned on by the force Pt, the compressed air simultaneously enters through the pressure reducing valve 8 into the mixer 4 and the metering pump 7. From which the foaming agent under pressure enters through the check valve 11 into the mixer 4, where foam is generated, which flows through the hose 5 to the nozzle 33, forming a semblance of a piston at the bottom of the well.

As soon as the metering pump 7 is freed from the foaming agent, the piston rod will turn on the end valve 29 and connect the pipe 18 to the atmosphere. 10 Compressed air from air collector 2 enters through the purge line 3-4-5 into the well and pushes water through the drain funnel 24, flexible sleeve 25, check valve 26 into the hydraulic tank 23e 15 At the same time, mechanical blocking of the end valve 29 with the valve 6 ensures the connection of the over-piston space of the metering pump 7 with atmosphere, which makes it possible to fill dosage dosage 20 with foaming agent. The rod of the metering pump 7 releases the end valve 29, restoring its original position under the action of the spring, and allows compressed air to enter 25 bypass pipe 28 of the purge valve 3. Purge stops.

From the well with the help of the manipulator 31 remove the drain funnel. 24, and the hose 5, winding onto the drum 32, 30, is lifted so that the end of the hose 5 remains above the wellhead.

The well is loaded with explosives.

Then, at the same time with the force Pi and P ₂ 35, the taps 6 and 18 are turned on, the compressed air enters simultaneously into the foam generation system 6-8-7-11-4 and into the gel formation and supply system. Compressed air through a valve 18 enters a pressure reducing valve 22, dozi-> 40 leveling pumps 14, 15 and a hydraulic tank 23 '. From the metering pumps 14, 15, the gel-forming components through the check valves 20, 21 enter the feeder 19, and from the hydraulic tank 23 through the check valve the water enters the feeder 45 19. Under the action of compressed air, the gel from the feeder is fed into the mixer 4.

Dosing pumps 7, 1’4, 15 are structurally designed so that the emptying 50 should occur almost simultaneously. Under the action of the rods of the metering pumps 7, 14, the end valves 29,30 are activated, opening the purge valve 3. The foam formed in the mixer 4, 55 is fed through the hose 5 to the well, carrying out its jamming. Because the cranes 6, 18 are connected. with the atmosphere by means of mechanical blocking with end valves 29, 30, the metering pumps 7 are filled. 14.15 through check valves 10, 16. 17 from tanks 9,

12.13. .

Claims (1)

Claim A device for drainage and stemming of wells, including an air collector connected to a compressor and through a purge valve with a mixer, a foam-forming liquid container connected to a dosing pump, a hose for supplying a foam well, characterized in that, in order to expand its functionality, it is equipped a hydraulic tank, a flexible sleeve with a drainage funnel at the end, additional metering pumps, containers for gel-forming components, which are connected to the mixer by means of a feeder and air ornikom by the crane, the hydraulic reservoir is connected to a flexible hose I0 through the check valve,