SU1446300A1 - Device for breaking rock - Google Patents

Abstract

The invention relates to mining and exploration and may be used to destroy rocks and as a source of seismic vibrations. The purpose of the invention is to increase the energy of a single blow and the efficiency of the device due to a more complete use of the energy of the combustion products. Case 1 is divided by piston-brisk (PB) 2 on to amer (K) 3 expansions and K 4 platoons. On case 1 per

Description

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mounted K 5 combustion with a hole 10 in the form of a Lavap nozzle for connecting K 5 combustion to K 3. In the lower part of housing 1 there is a working tool 11. Butt PB 25 facing K 3 is made with a toroidal recess and center. The surfaces of the recess and the protrusion smoothly mate. Upon ignition of the fuel-air mixture in K 5, the gases through the opening 10 affect the end face of PB 2 and, reflecting from the toroidal cavity, inform PB 2 of an additional impulse. With this, the impact energy of PB 2 increases according to the working tool 11. 1 sludge.

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 The invention relates to mining and exploration work and can be used to destroy rocks, compact loose rocks, as well as a source of seismic vibrations.

The purpose of the invention. - an increase in the energy of a single blow and the efficiency of the device due to a more complete use of the energy of the combustion products.

The drawing shows the device. for the destruction of mining rocks, a general view.

The device comprises a housing 1 divided by a brisk piston 2 into an expansion chamber 3 and a platoon chamber 4, a combustion chamber 5 depressed on the housing, with a blocking valve 6 installed in it, an inlet valve 7, an ignition candle 8, an exhaust valve 9, at the bottom of the chamber 5, a hole 10 in the form of a Laval nozzle is formed to connect the combustion chamber 5 with the expansion chamber 3. In the lower part of the housing 1. The working tool 11 is placed; In the cylinder of the housing there are made the outer windows 12 and the fitting 13 for supplying air for the piston-hammer 2, the piston-hammer for 2; at the end face facing the expansion chamber 3, along its periphery, there are toroidal depressions and in the center a conical protrusion, while the surfaces of the recess and protrusion are smoothly mated.

The device works as follows.

Through the inlet valve 7, the combustion chamber 5 is filled with an air-fuel mixture. The filling is performed to a predetermined pressure. Blocking valve 6 and exhaust valve 9 at

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this is closed. The piston head 2 is in an extremely high position under the action of pressure in the platoon chamber 4. When the set pressure in the combustion chamber 5 is reached by the ignition candle 8, the air-fuel mixture ignites, at the same time the inlet valve 7 closes and the block valve 6 and the exhaust valve 9 opens. Opening the block valve 6 releases the combustion products from the combustion chamber 5. These gases, the passage through the Lawal 10 nozzle, with increasing force act on the piston head 2, on its toroidal surface. Due to the high velocity of the gases emitted from the combustion chamber 5, the piston-firing head 2 receives an additional impulse compared with the design of the outlet opening from the combustion chamber, for example, a known device.

In addition, the toroidal surface of the piston-block 2 contributes to the rotation of the gas flow by 180 after it interacts with it. Thus, the reactive component of the reflected flow has a maximum value, and its direction coincides with the direction of action of the main flow force. The presence of such design changes contributes to the most-complete release of the energy of the outgoing flow of combustion products from the combustion chamber 5. This increases the efficiency of the device and, with other conditions being equal, the impact energy is.

Under the action of the force of the gas flow, the piston-strike 2 accelerates before the impact with the working tool 11. The latter interacts directly with the rock, destroying it. This opens the outlet windows.

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12, and the exhaust gases are released into the atmosphere. Under the action of pressure in the platoon 4 chamber, the piston head 2 returns to its initial uppermost position. Duty cycle with non-reuse can be repeated.

Claims (1)

The invention The device for the destruction of rocks, including a housing, divided by a piston brisk into expansion and platoon chambers, a combustion chamber mounted on the housing, connected to the expansion chamber with an opening, 46300 instrument and air lines, characterized in that, in order to increase the energy of a single impact and the efficiency of the device  fuller use account the energy of the combustion products, the opening between the combustion chamber and the expansion chamber 1 is made in the form of a Lava-Q l nozzle, and the end of the piston facing the expansion chamber is made with a toroidal recess along its periphery and a conical protrusion in the center, with the surface of the recess and 15 stupa is made smoothly mated.