UA14213U - Appliance for compaction and insulation of cavities and cracks in solid massif and formation of air gaps in well charge of explosive substance - Google Patents

Abstract

The appliance for compaction and insulation of cavities and cracks in solid massif and formation of air gaps in well charge of explosive substance hastightened yielding shell with elements of suspension and source of forming pressure in it for its radial expansion. Besides that the yielding tightened shell is formed by a set of hermetically closed different-type bags, those are installed one into another and rolled up to a roll, the source of pressure formation is placed inside the hermetically closed bag forming the inner surface of the roll and is arranged as separate hermetical packs, each of those is filled with one of the components of gas-generating composition; at that the hermetically closed bag forming the inner cavity of the roll has valves connecting its cavity to the cavity of its surrounding bag, and the limit of the tensile strength of a bag (?bag) is chosen as (10-15) ?pack,, where (?pack) û tensile strength limit of a pack.

Description

Description of the invention

The useful model belongs to the field of mining and is intended for sealing and isolating cavities and 2 cracks in a solid mass of rocks and can be used for locking the well charge, sealing inside the pipe space, sealing cavities and cracks in tunnels, wells, construction structures, as well as for expansion of cavities and cracks during emergency rescue operations.

A known device for sealing and isolating cavities and cracks in a solid massif of rocks and creating air gaps in a well charge of an explosive substance, according to Russian patent Mo2187783 dated 01.11.2001, 70. IPC 7 g4201/08, publ. 2002.08.20. contains a sealing element with a suspension element.

The reason preventing the achievement of the expected technical result is that the sealing element for the well charge is made in the form of a disc made of a material with a shape memory, while the disc is contoured with elastic materials, which complicates, makes the device more expensive and limits its functionality. This is due to the dependence of the sealing element in the form of a disk on the shape and diameter of the cavity, 12 i.e. the well.

The method of dispersing the charge in a well according to Russian patent Mo2235971 dated 07.25.2003, IPC 7 P4201/08, publ. 10.09.2004, which uses a device for isolating a well charge, contains a hermetic flexible shell with a suspension element and a source of creating pressure in it for its radial expansion.

The reason that prevents the achievement of the expected technical result is that a mobile source of compressed air and equipment for its connection are used to create pressure in the hermetic flexible shell, which complicates the process of operational use of the device for sealing and creating air gaps in the well charge of explosives.

These devices are not acceptable for use in hard-to-reach places, as well as in emergency and rescue operations, where there is no possibility to connect and deploy means of supplying compressed air, which limits its use.

The useful model is based on the task of improving the device for sealing and isolating cavities and cracks in a solid mass of rocks and creating air gaps in the well charge of an explosive substance by changing the structural elements and the relationship between them, simplifying the device and thereby expanding the area its application. "--

The problem is solved by the fact that in the device for sealing and isolating cavities and cracks in a solid mass of rocks and creating air gaps in a well charge of an explosive substance, which contains a hermetic, flexible shell with a suspension element and a source of creating pressure in it for its radial expansion, "I according to the utility model, the flexible hermetic shell is formed by a set of different types of hermetically sealed bags, which are inserted into each other and rolled up into a roll, the source of pressure is placed inside the hermetically sealed bag forming the inner surface of the roll and is made in the form of individual hermetically sealed bags, each of which is filled with one of the components of the gas-generating composition, while the hermetically sealed bag forming the inner cavity of the roll contains valves that communicate its cavity with the cavity of the bag surrounding it, and the tensile strength of the bag (sueu) is taken (10-15) spac Z - tensile strength limit of the package. c Bags and package and are made of elastic transparent material. "from the execution of a pliable hermetic shell in the form of a set of different types of hermetically closed bags, inserted into each other and rolled up in a roll, a source of pressure for its radial expansion in the form of individual hermetic bags, each of which is filled with one of the components of the gas-generating composition and its 75 placement inside the hermetically sealed bag forming the inner surface of the roll made it possible to eliminate the time-consuming operations of connecting and deploying means for supplying compressed air, to ensure the process of self-inflation of the pliable hermetic shell and due to this to simplify and reduce the cost of the device, to increase the efficiency of its use, as well as to expand the scope of its application . o Making bags and packages from elastic transparent material ensures visibility of the state of the bags in - 70 rolls, and control of the occurrence of a chemical reaction in the bag. c The tensile strength limit of the bag (sued) is taken (10-15) the tensile strength limit of the bag is set by an expert mentally Changing the limit parameters towards increase or decrease makes the device inoperable.

The essence of the useful model is explained by the drawings, where: 59 Fig. 1 - general view of the device; c Fig. 2 - a general view of the device in the cross-section along A-A;

Fig. 3 - presented device in an expanded view;

Fig. 4 - device in cross-section along B-B.

The device for sealing and isolating cavities and cracks in a solid mass of rocks and creating air 60 gaps in a well charge of an explosive substance contains a hermetic flexible shell 1 with a suspension element 2 and a source of creating pressure in it for its radial expansion. The pliable hermetic shell 1 is formed by a set of different types of hermetically closed bags 3, 4, 5, which are inserted one inside the other and rolled up. The source of pressure generation is placed inside a hermetically sealed bag 5, which will form the inner surface of the roll, and is made in the form of individual hermetic bags b, 7 each of which is filled with one of the components 8, 9 of the gas-generating composition. At the same time, the hermetically sealed bag 5, which will form the inner cavity of the roll, contains valves 10 that communicate its cavity with the cavity of the surrounding hermetically sealed bag 4. The tensile strength limit of the bag (sued) is taken (10-15) tensile strength of the package. Bags 3, 4, 5 and bags 6, 7 are made of elastic transparent material.

A device for sealing and isolating cavities and cracks in a solid rock mass and creating air gaps in a borehole charge of an explosive substance is used in the following way.

The device is prepared in advance according to the specified parameters, in particular, the maximum volume of radial expansion necessary to create a specified closing force in the cavity of the well charge. The depth of insertion of the device into a well or cavity is set by the length of the suspension 2. 70 To create a cavity in a well charge of explosives, this device is used in the following way.

The suspension device 2 is lowered into the well. Before lowering the device into the well, bending forces are applied to it. This operation is performed manually by grasping the device at the ends with the hands and bending it around the user's knee or other support. Such an effort is enough for packages b, 7 with components of the gas-generating mixture to collapse. As a result of the mixing of these 75 Components, a chemical reaction occurs with the release of gas. Under the pressure of the gas in the hermetically sealed bag 5, which forms the inner surface of the roll, the valves 10 are opened, and the gases are directed into the cavity of the surrounding hermetically sealed bag 4. As the gases flow into it, the bag 4 inflates.

The resulting radial forces affect the surrounding hermetically sealed bag 3, which unwinds and closes the cavity. For a chemical reaction with the release of gas, for example, gas-generating components such as vinegar and soda are used.

Thus, air gaps are created during the formation of the column of the well charge of explosives. Depending on the parameters of the air gap in the column of the well charge of explosives or cavities in the well, the parameters of the bags and the mass of the gas-generating components change.

In the presence of a large air cavity exceeding the maximum dimensions of one inflated device, it is possible to use several devices, which compensate for the remaining air cavity, which achieves reliable closure of large torn cavities. As a result, these devices have become widely used. For example, the claimed device in the form of self-inflating bags has proven itself well in the construction industry, where they are used to seal cracks and cavities in construction structures and houses, as well as in emergency and rescue operations for

From the release of objects from under rubble. When using the claimed device to close a crack or cavity in a solid massif of mining rocks or building structures, the hermetic flexible shell 1.00077 is placed directly in the cavity or crack. Simultaneously with its placement in a cavity or a crack in it, Ga cause a chemical reaction with the release of gas. For a chemical reaction with the release of gas, for example, gas-generating components such as vinegar and soda are used. As the gas is released, pressure is created in the hermetic flexible shell 1, under the action of which the shell 4 inflates and closes the cavity or crack. "--

The parameters of the closing properties of these shells can be varied depending on the parameters of the shell itself, the shape of its execution and the mass of the components that release the corresponding amount of gases. This makes it possible to use the mentioned shells for sealing cavities and cracks in water wells, tunnels and building structures. " - with

Claims (2)

The formula of the invention;" 1. A device for sealing and isolating cavities and cracks in a solid mass of rocks and creating air gaps in a borehole charge of an explosive substance, containing a hermetic flexible shell with a suspension element and a source of creating pressure in it for its radial expansion, which is distinguished by the fact that it is flexible the hermetic shell is formed by a set of different types of hermetically sealed bags, which are inserted into each other and rolled into a roll, the source of pressure is placed inside the hermetically sealed bag, which forms the inner surface of the roll, and is made in the form of separate hermetically sealed bags, each of which is filled with one of the components of the gas-generating composition, while the hermetically sealed bag, forming the inner cavity of the roll, contains valves connecting its cavity with the cavity of the bag surrounding it, and the tensile strength of the bag (si) is taken from (10-15) ) is the tensile strength of the package. 2. A device for sealing and isolating cavities and cracks in a solid mass of rocks and creating air gaps in a borehole charge of an explosive substance according to claim 1, which is characterized by the fact that the bags and bags are made of elastic transparent material. 60 b5