CN217585518U - Blasting loaded constitution - Google Patents
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- CN217585518U CN217585518U CN202221727098.7U CN202221727098U CN217585518U CN 217585518 U CN217585518 U CN 217585518U CN 202221727098 U CN202221727098 U CN 202221727098U CN 217585518 U CN217585518 U CN 217585518U
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Abstract
The utility model discloses a blasting charge structure, which comprises a cartridge case, a water absorbing material, a filter screen, a cartridge bag, a detonating device and a blocking object; wherein the water absorbing material is used for absorbing water or water solution; the filter screen is used for packaging water-absorbing materials. Before charging, the filter screen filled with the water-absorbing material is put into water for soaking, and is taken out for standby after being expanded into a cylindrical shape; when charging, the water absorbing material soaked in water and the explosive are loaded into the explosive cartridge in different orders. The utility model discloses a water bag in traditional water pressure blasting can be avoided to blasting loaded charge structure is being cut open by cartridge case pore wall rock loading in-process to the problem of leaking appears, and then influences water pressure blasting effect and dust fall effect. In addition, the explosive charging structure can prolong the action time of explosive gas, is favorable for rock breaking, saves time and labor in practical application, is simple and convenient to operate, is favorable for field construction management, and has remarkable economic benefit and social benefit.
Description
Technical Field
The utility model relates to an engineering blasting technical field, concretely relates to blasting loaded constitution.
Background
In railway construction, hydraulic engineering, mining engineering and other earthwork projects, blasting is the most widely and effectively used rock breaking means at present, however, dust pollution is easily generated in the blasting process. In recent years, the problem of preventing and controlling dust pollution in the air is widely regarded, and therefore, many technicians search for a dust falling technology. The Chinese patent application No. 200710051361.9 discloses an energy-saving and environment-friendly engineering hydraulic blasting blasthole and a blasting method thereof, a certain amount of water needs to be filled into a cartridge case, the water is atomized under the action of explosives, and a dust fall effect is achieved. In view of the above, the chinese patent application No. 201810812578.5 discloses a fast-loading hydraulic blasting device, which effectively protects a water bag from being scratched by rocks inside a blast hole, but the device requires auxiliary tools such as a diversion trench and a lantern ring, so that the device is too cumbersome in practical application, is not favorable for field construction management, and greatly limits the application of the device.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a blasting charge structure, this charge structure can avoid the water bag in traditional water pressure blasting to be ripened by cartridge case pore wall rock in loading the in-process to the problem of leaking appears, and then influences water pressure blasting effect and dust fall effect. In addition, the explosive charging structure can prolong the acting time of explosive gas and is beneficial to rock crushing.
The utility model discloses another purpose is: the construction method of the blasting charge structure is time-saving and labor-saving in practical application, is simple and convenient to operate, is beneficial to on-site construction management, and has remarkable economic and social benefits.
The utility model provides a technical scheme of above-mentioned technical problem is:
the utility model provides a blasting loaded constitution, includes cartridge case to and set up explosive package, detonating equipment, plug and the cooling dust collector inside cartridge case, the plug is located the orifice department of cartridge case, its characterized in that, cooling dust collector includes that a plurality of is by the cooling dust removal package that filter screen parcel water absorption material formed, the cooling dust removal package is installed with explosive package irregular arrangement in cartridge case.
The utility model discloses a preferred scheme, water-absorbing material can absorb its own weight more than 2 times to have very strong water retention capacity, like super absorbent resin or sponge material or cotton.
The utility model discloses a preferred scheme, the particle diameter scope of water absorbing material (before absorbing water) is 0.1mm ~10mm, and its particle diameter is less, and the speed of absorbing water is faster.
The utility model discloses a preferred scheme, the filter screen is flexible, and it is cylindricly under the effect of water-absorbing material (after absorbing water) expansive force, the cylinder diameter with cartridge case diameter is unanimous.
The utility model discloses a preferred scheme, the quantity of the material that absorbs water in the filter screen is calculated according to the volume of filter screen and the multiple that absorbs water of the material that absorbs water.
The utility model discloses a preferred scheme, the hole diameter of filter screen is less than the material that absorbs water (before absorbing water) particle diameter ensures that the material that absorbs water does not follow spill in the filter screen.
In a preferred embodiment of the present invention, the explosive package is generally emulsion explosive or ammonium nitrate fuel oil explosive.
The utility model discloses a preferred scheme, initiating device generally is detonator, detonating cord.
In a preferred embodiment of the present invention, the blocking material is sand, soil or a combination thereof.
The utility model discloses a preferred scheme, cartridge case can be cartridge case, surface mine step blasting cartridge case etc. in the tunnel tunnelling blasting.
A construction method of a blasting charge structure comprises the following steps:
1) Designing the diameter and length of the filter screen according to the diameter of the cartridge;
2) Calculating the using amount of the water absorbing material according to the volume of the filter screen and the water absorption times of the water absorbing material;
3) Filling the water absorbing material into the filter screen and then sealing;
4) Before charging, putting the filter screen filled with the water-absorbing material into water for soaking;
5) Taking out the filter screen for later use after the filter screen expands to be cylindrical;
6) Filling the explosive cartridge with the initiation device inside;
7) Loading the water-absorbing material soaked in water and the rest of the explosive bags into the explosive box in different orders;
8) Loading said plug into said cartridge port location;
9) And D, detonating after networking the detonating equipment.
The utility model discloses a blasting loaded constitution theory of operation utilizes the material that absorbs water to have very strong water retention ability, introduces cartridge case with water, and the water of introducing in the cartridge case is absorbed by the material that absorbs water that the filter screen wrapped up in, forms hydrous material after the inflation, and then blocks up cartridge case. After detonating the explosive, receive to explode and produce high-pressure gas extrusion, with the water atomization in the water-containing material, the tiny drop of water after the atomizing in blasting process adsorbs the harmful tiny particle dust in the exploding gas to play dust fall and cooling effect, it can avoid water bag in traditional water pressure blasting to be cut at the filling in-process by cartridge case pore wall rock, thereby the problem of leaking appears, and then influences water pressure blasting effect and dust fall effect.
Compared with the prior art, the utility model following beneficial effect has:
1. the utility model provides a blasting charge structure greatly reduced explodes the pollution of dust to the environment, it avoids the water bag in traditional water pressure blasting to be lacerated by cartridge case pore wall rock at the loading in-process, thereby the problem of leaking appears, and then influence water pressure blasting effect and dust fall effect, simultaneously after detonating the explosive, receive to explode and give birth to the extrusion of high-pressure gas, water atomization in the material that will contain water, the tiny drop of water after the atomizing of blasting in-process adsorbs the harmful tiny particle dust that explodes in the raw gas, harmful tiny particle dust in the air after having reduced the blasting, reduce the pollution of blasting dust to the environment. The operator inhales less harmful small-particle dust after blasting, and the risk of suffering from occupational diseases is reduced.
2. The utility model provides a blasting loaded constitution can be used to improve the security of high temperature blasting construction, and it utilizes water to have great specific heat capacity, can absorb heat and release vapor, makes the explosive and the blasting equipment of packing into in the section of thick bamboo of exploding be in moist state to ensure that explosive and initiating equipment keep in safe temperature environment in a certain time.
3. The utility model provides a blasting loaded constitution and construction method labour saving and time saving, easy and simple to handle in practical application are favorable to the site operation management, have apparent economic benefits and social.
Drawings
Fig. 1 is a schematic structural diagram of a blasting charge structure in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a blasting charge structure in the second embodiment of the present invention;
fig. 3 is a specific structural schematic diagram of a blasting charge structure in the third embodiment of the present invention.
Reference numerals are as follows:
explosive cartridge-1; explosive package-2; a detonating device-3; plug-4; cooling and dedusting bag-5; a filter screen-6; water absorbing material-7.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. The components of embodiments of the present application, generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that a product of the present invention is usually placed in when used, and are only for convenience of describing the present application and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance.
The present invention will be described in further detail with reference to the following examples and accompanying fig. 1 to 3, but the present invention is not limited thereto.
Example one
Referring to fig. 1, the utility model discloses a blasting loaded constitution includes: the explosive cartridge is characterized in that the cooling and dedusting device comprises a plurality of cooling and dedusting bags 5 formed by wrapping water absorbing materials 7 by filter screens 6, wherein the cooling and dedusting bags 5 and the explosive cartridges 2 are arranged in the explosive cartridge 1 in an irregular mode; wherein, the water absorbing material 7 is used for absorbing water or water solution, and the filter screen 6 is used for packing the water absorbing material 7.
Wherein, the quantity of explosive package 2 is selected to be 7, and the cooling is removed dust 5 quantity and is 4, and 4 quantity of plug are 2 books, and the order of filling from the bottom to the drill way at explosive cartridge 1 is: the bottom is filled with 1 cooling dedusting bag 5, the middle is filled with 7 explosive bags 2, the part close to the orifice is filled with 3 cooling dedusting bags 5, and the orifice is filled with 2 coils of plugs 4.
The explosive cartridge 1 is a horizontal explosive cartridge 1 in tunnel tunneling blasting, the diameter of the explosive cartridge 1 is 42mm, and the hole depth of the explosive cartridge is 4m; cartridge 11 was at 20 ° and was ambient cartridge 1.
The water absorbing material 7 is super absorbent resin or sponge material or cotton, the particle size of the super absorbent resin before water absorption is 1mm, the super absorbent resin can absorb more than 20 times of the self weight of water, and has strong water retention capacity, and the smaller the particle size is, the faster the water absorption rate is.
The filter screen 6 is tea bag filter paper, has soft characteristic and hydrophilicity, is cylindrical under the action of expansive force after the water absorption material 7 absorbs water, and has the diameter of 32mm and the length of 30cm.
Because the density of the super absorbent resin is 1.08g/cm 3 It can absorb water more than 20 times its own weight, i.e. the volume of water-absorbing resin can be expanded by about 20 times, and the volume of the above-mentioned filter screen 6 is 240cm 3 And the calculation shows that the mass of the super-absorbent resin in the filter screen 6 is not less than 15g.
As the particle size of the super water-absorbent resin before water absorption is 1mm, the diameter of the holes of the filter screen 6 is 0.5mm, and the super water-absorbent resin is ensured not to leak out of the filter screen 6.
The explosive package 2 is filled with emulsion explosive, the diameter of the emulsion explosive is 32mm, and the length of the emulsion explosive is 30cm.
The initiation device 3 is an electronic digital detonator, and the initiation explosive cartridge 1 is manufactured by inserting the explosive package 2.
The mixture ratio of the plug 4 is as follows: sand-water =5, which can be made with a stemming machine, with a diameter of 32mm and a length of 30cm.
Example two
Referring to fig. 2, unlike the first embodiment, the number and the arrangement order of the explosive packages 2, the temperature-reducing and dust-removing packages 5, and the blockages 4 in the explosive cartridge 1 are different, specifically:
wherein, the quantity of explosive package 2 is selected to be 3, and the 5 quantity of cooling dust removal package is 8, and 4 quantity of plugs are 2 books, and at explosive cartridge 1 from the bottom to the loading order in drill way: 3 cooling and dedusting bags 5 are filled at the bottom, the height of the cooling and dedusting bags is 0.3m, explosive bags 2 and the cooling and dedusting bags 5 are filled at intervals in the middle part, 3 cooling and dedusting bags 5 are filled at the part close to the hole opening, the height of the cooling and dedusting bags is 0.3m, and 2 rolls of plugs 4 are filled at the part of the hole opening.
The cartridge 1 is a vertical cartridge 1 in bench blasting of an open-pit coal mine, the diameter of the cartridge is 140mm, and the hole depth is 13m; cartridge 1 is at a temperature of 200 deg. for high temperature cartridge 1.
The water absorbing material 7 is super absorbent resin or sponge material or cotton, the particle size of the super absorbent resin before water absorption is 0.5mm, the super absorbent resin can absorb more than 20 times of the self weight of the super absorbent resin, and the super absorbent resin has strong water retention capacity, and the smaller the particle size is, the faster the water absorption rate is.
The filter screen 6 is tea bag filter paper, has soft characteristic and hydrophilicity, is cylindrical under the action of expansive force after the water absorption material 7 absorbs water, and has the diameter of 110mm and the length of 10cm.
Because the density of the super absorbent resin is 1.08g/cm 3 The volume of the water-absorbing resin can be expanded by about 20 times, and the volume of the filter screen 6 is 950cm 3 And the calculation shows that the mass of the super-absorbent resin in the filter screen 6 is not less than 45g.
As the particle size of the super-absorbent resin before water absorption is 0.5mm, the diameter of the holes of the filter screen 6 is 0.3mm, and the super-absorbent resin is ensured not to leak out of the filter screen 6.
The inside of the explosive package 2 is provided with emulsion explosive, the diameter of which is 110mm, and the length of which is 35cm.
The detonating device 3 is a detonating cord with the outer diameter of 5mm and the main component of Taian.
The plug 4 is rock powder and sand around the orifice.
EXAMPLE III
Referring to fig. 2, unlike the first and second embodiments, the number and arrangement sequence of the explosive cartridges 2, the temperature-reducing and dust-removing pack 5, and the blockages 4 in the explosive cartridge 1 are different, specifically:
the charging structure is filled from the bottom to the hole in the following sequence: the bottom is provided with 1 roll of cooling and dedusting bag 5, the height of the bag is 0.35m, the lower middle part is filled with an emulsion explosive bag 2 with the height of 4.5m, the middle part is filled with water-absorbing resin with the height of 2m, the upper middle part is filled with an emulsion explosive bag 2 with the height of 4.5m, the part close to the orifice is filled with 2 rolls of cooling and dedusting bag 5, the height of the bag is 0.7m, and the orifice part is filled with a blockage 4.45 m.
The explosive cartridge 1 is a vertical explosive cartridge 1 in bench blasting of an open-pit coal mine, the diameter of the explosive cartridge is 140mm, and the hole depth is 16.5m; cartridge 1 is at 20 deg. to be a normal cartridge 1.
The water absorbing material 7 is super absorbent resin or sponge material or cotton, the particle size of the super absorbent resin before water absorption is 1mm, the super absorbent resin can absorb water more than 20 times of the self weight of the super absorbent resin, the super absorbent resin has strong water retention capacity, and the smaller the particle size is, the faster the water absorption rate is.
The filter screen 6 is tea bag filter paper, has soft characteristic and hydrophilicity, is cylindrical under the action of expansive force after the water absorption material 7 absorbs water, and has the diameter of 110mm and the length of 35cm.
Because the density of the super absorbent resin is 1.08g/cm 3 The volume of the water-absorbing resin can be expanded by about 20 times, and the volume of the filter screen 6 is 3300cm 3 The calculation shows that the mass of the super absorbent resin in the filter screen 6 is not less than 150g。
As the particle size of the super water-absorbent resin before water absorption is 1mm, the diameter of the holes of the filter screen 6 is 0.6mm, and the super water-absorbent resin is ensured not to leak out of the filter screen 6.
The explosive is an emulsion explosive, the diameter of the emulsion explosive is 110mm, and the length of the emulsion explosive is 35cm.
The initiation equipment 3 is an electronic digital detonator, and the explosive is required to be inserted to be made into the initiation explosive cartridge 1.
The plug 4 is rock powder and sand around the orifice.
Example four
Referring to fig. 1, 2 and 3, the construction method of the blasting charge structure of the embodiment includes the following steps:
1) Designing the diameter and length of a filter screen 6 according to the diameter of the cartridge 1;
2) Calculating the using amount of the water absorbing material 7 according to the volume of the filter screen 6 and the water absorption multiple of the water absorbing material 7;
3) The water absorbing material 7 is sealed after being filled into the filter screen 6;
4) Before charging, the filter screen 6 filled with the water absorbing material 7 is soaked in water;
5) Taking out the filter screen 6 for later use after the filter screen expands into a cylindrical shape;
6) The explosive bag 2 with the initiation device 3 is filled into the explosive cartridge 1;
7) The water absorbing material 7 soaked in water and the rest of the explosive bags 2 are filled into the explosive cartridge 1 in different orders;
8) Loading said plug 4 into said cartridge 1 at the orifice location;
9) And (4) carrying out networking and then detonating the detonating equipment 3.
Referring to fig. 1, 2 and 3, the working principle of the blasting charge structure of the present invention is further described with reference to the accompanying drawings:
the utility model discloses utilize water-absorbing material 7 to have very strong water retention ability, introduce cartridge case 1 with water to play dust fall and cooling effect, it can avoid the water bag in traditional water pressure blasting to be ripened by cartridge case 1 pore wall rock in loading the in-process, thereby the problem of leaking appears, and then influences water pressure blasting effect and dust fall effect. The water introduced into cartridge 1 is absorbed by water-absorbing material 7 wrapped by screen 6, and expands to form a water-containing material, which blocks cartridge 1. After the explosive is detonated, the water in the water-containing material is atomized by the extrusion of the detonation high-pressure gas, and the small water drops after atomization in the blasting process adsorb harmful small particle dust in the detonation gas, so that the pollution of the blasting dust to the environment is reduced.
The above is the preferred embodiment of the present invention, but the embodiment of the present invention is not limited to the above, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all such changes, modifications, substitutions, combinations, and simplifications are included in the scope of the present invention.
Claims (6)
1. The blasting charge structure is characterized by comprising a explosive cartridge (1), an explosive bag (2), an initiating device (3), a blocking object (4) and a cooling and dust removing device, wherein the explosive bag (2), the initiating device (3), the blocking object (4) and the cooling and dust removing device are arranged in the explosive cartridge (1), the blocking object (4) is positioned at an orifice of the explosive cartridge (1), the cooling and dust removing device comprises a plurality of cooling and dust removing bags (5) formed by wrapping water absorbing materials (7) by a filter screen (6), and the cooling and dust removing bags (5) and the explosive bag (2) are randomly arranged in the explosive cartridge (1); the filter screen (6) is flexible, and it is cylindricly after water absorption material (7) water absorption expansion, the cylinder diameter with cartridge case (1) diameter is unanimous.
2. A blast charge structure according to claim 1, characterised in that said water absorbent material (7) is super absorbent resin or sponge material or cotton.
3. A blast charge construction according to claim 2, characterized in that the water absorbing material (7) has an initial particle size in the range of 0.1mm to 10mm.
4. A blast charge construction according to claim 1, characterized in that the diameter of the holes of the screen (6) is smaller than the primary particle size of the water-absorbing material (7).
5. A blast charge construction according to claim 4, characterized in that said screen (6) is flexible and cylindrical under the effect of the expansion force of the water-absorbing material (7) after water absorption, the diameter of the cylinder corresponding to the diameter of the cartridge (1) of said cartridge (1).
6. Blasting charge according to claim 5, characterised in that the amount of water-absorbing material (7) in the sieve (6) is set according to the volume of the sieve (6) and the water absorption multiple of the water-absorbing material (7).
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| CN202221727098.7U CN217585518U (en) | 2022-07-05 | 2022-07-05 | Blasting loaded constitution |
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| CN202221727098.7U CN217585518U (en) | 2022-07-05 | 2022-07-05 | Blasting loaded constitution |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114963910A (en) * | 2022-07-05 | 2022-08-30 | 中铁建大桥工程局集团第三工程有限公司 | Blasting charge structure and construction method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114963910A (en) * | 2022-07-05 | 2022-08-30 | 中铁建大桥工程局集团第三工程有限公司 | Blasting charge structure and construction method thereof |
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