CN114608395A - Blasting method for open-air fracture development rock stratum - Google Patents
Blasting method for open-air fracture development rock stratum Download PDFInfo
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- CN114608395A CN114608395A CN202210235994.XA CN202210235994A CN114608395A CN 114608395 A CN114608395 A CN 114608395A CN 202210235994 A CN202210235994 A CN 202210235994A CN 114608395 A CN114608395 A CN 114608395A
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- blasting
- guide roller
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- explosive
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D3/00—Particular applications of blasting techniques
- F42D3/04—Particular applications of blasting techniques for rock blasting
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
- G06F17/11—Complex mathematical operations for solving equations, e.g. nonlinear equations, general mathematical optimization problems
Abstract
The invention provides a blasting method of an open-air fissure developmental rock stratum, which comprises the following steps: determining a construction section, and carrying out blasting evaluation according to the construction section; calculating the blasting point position and the explosive amount according to the blasting evaluation result; punching the construction section according to the blasting point position and the explosive amount, and charging the blast hole; connecting the explosives on each blasting point and detonating the explosives. The invention provides a blasting method for an open-air fracture development rock stratum, which is used for realizing blasting calculation on a blasting area by fully utilizing collected geographic information and environmental information in a blasting process, thereby improving the blasting effect in the blasting process, reducing the situation that secondary blasting is caused because part of initiation points after blasting do not meet blasting requirements, further reducing the situation that long-time pollution is caused to the environment by gunpowder due to multiple times of blasting, improving the blasting accuracy, saving the explosives required by blasting and further improving the production efficiency.
Description
Technical Field
The invention relates to the technical field of mine blasting, in particular to a blasting method for an open-air fissure developmental rock stratum.
Background
Open cut mining, also known as strip mining, is a process of removing a covering from an ore body to obtain a desired mineral, and mining a useful mineral from an open surface mining site. The surface mining operation mainly comprises the processes of perforation, blasting, mining and loading, transportation, dumping and the like; in the existing open-pit mining, the pit is arranged,
the blasting aiming at the fracture development rock stratum means that the weathering modification effect is large due to lithology, structure and climate, and more obvious cracks are generated due to the weathering effect, water corrosion and geological structure effect. When blasting mining is carried out on the mine, the situation of unsatisfactory blasting can be caused due to errors of blasting calculation and actual blasting; that is, the blasting may be incomplete during the blasting, and secondary blasting is required.
Disclosure of Invention
The invention provides a blasting method for an open-air fracture development rock stratum, which is used for realizing blasting calculation on a blasting area by fully utilizing collected geographic information and environmental information in a blasting process, thereby improving the blasting effect in the blasting process, reducing the situation that secondary blasting is caused because part of initiation points after blasting do not meet blasting requirements, further reducing the situation that long-time pollution is caused to the environment by gunpowder due to multiple times of blasting, improving the blasting accuracy, saving the explosives required by blasting and further improving the production efficiency.
The invention provides a blasting method of an open-air fissure developmental rock stratum, which comprises the following steps: determining a construction section, and carrying out blasting evaluation according to the construction section; calculating the blasting point position and the explosive amount according to the blasting evaluation result; punching the construction section according to the blasting point position and the explosive amount, and charging the blast hole; connecting the explosives on each blasting point and detonating the explosives.
Preferably, determining the construction section comprises: and acquiring the geographic information of the mineral acquisition area by remote sensing mapping, confirming the construction section according to the geographic information of the mineral acquisition area, carrying out blasting simulation on the confirmed construction section, and acquiring a blasting evaluation result.
Preferably, the construction section is a fracture development rock stratum, wherein the mining slope angle of the ore deposit rock mass part in the construction section is less than or equal to 60 degrees; the side slope angle is correspondingly reduced by 5 degrees when the height from the mining chassis to the surface slope is increased by 100 meters; the slope angle of the loess covering layer near the earth surface is less than or equal to 45 degrees.
Preferably, the blasting point location includes a plurality of rows of stepped rows of blastholes, each of the stepped rows of blastholes including a plurality of blastholes; the aperture d of the blast hole is 0.1-0.2 m; the step height of the step-shaped blast hole row is 10-20 m; the blast hole row length L is as follows: l ═ H/sin a; h is the step height, H is the hole ultra-depth, and sin a is the blast hole inclination angle; wherein H is (0.1 to 0.2) H.
Preferably, determining the hole density coefficient m of each of the blast holes according to the state of the developing rock formation includes: when the rock structure is complete, m is 1.7; when the rock is broken and the cracks develop, m is 1.2; when the jointing fissure of the current mining area develops, m is 1.2;
preferably, the explosive dosage calculation comprises: determining the explosive amount according to the state of a developing rock stratum, and determining the fragmentation degree and the minimum resistance line of blasting according to the explosive amount; wherein the dosage q of the explosive is pi (d/2)2Rho; d is the bore diameter of the blast hole, and rho is the density of the explosive.
Preferably, the explosive density includes, but is not limited to, any one of porous granular amine oil explosive, powdery finished explosive and rock emulsion explosive.
Preferably, the line of least resistance w ═ b · sin a; wherein b is the row pitch, and sin a is the blast hole inclination angle.
Preferably, the method further comprises the following steps: the PE pipe is sent into a blast hole by a coiler, and the side surface and the bottom of the PE pipe are welded in the sending process; starting a medicine mixing device to mix the explosives uniformly according to the types of the explosives; charging the uniformly mixed explosive to an opening at the upper end of the welded PE pipe through the determined explosive amount; and guiding the explosive entering the PE pipe into the bottom of the PE pipe by using the explosive charging device.
Preferably, the material rolling machine includes: the PE pipe winding machine comprises a base plate, wherein traveling wheels are arranged below the base plate, a first shell and a second shell are arranged above the base plate at intervals, a reel group used for drawing and winding and outputting raw materials of a PE pipe is formed between the first shell and the second shell, the reel group comprises a first reel and a second reel, the first reel and the second reel are arranged on the upper surface of the base plate at intervals, a first driver is arranged on one side of the first reel, a second driver is arranged on one side of the second reel, and the first driver and the second driver are respectively used for driving the first reel and the second reel; the first reel and the second reel are respectively arranged on the upper surface of the bottom plate through a supporting plate;
a first vertical plate and a second vertical plate are oppositely arranged between the first reel and the second reel, the first vertical plate and the second vertical plate are used for mounting a reel set, and the reel set is used for outputting PE pipe raw materials on the first reel and the second reel; the first vertical plate and the second vertical plate are connected into a whole through a plurality of connecting rods; the reel set includes: the first guide roller and the second guide roller are arranged on one side, close to the second scroll, of the first scroll at intervals, wherein the height of the first guide roller is lower than that of the second guide roller, and the first guide roller is arranged close to the lower portion of the first scroll;
the side, close to the second scroll, of the second guide roller is provided with adjusting roller sets at intervals, the adjusting roller sets are arranged at intervals up and down, and raw materials of the PE pipe pass through the two adjusting roller sets; the height of the adjusting roller group is higher than that of the second guide roller; a third guide roller and a fourth guide roller are arranged on one side of the adjusting roller group at intervals, the height of the fourth guide roller is higher than that of the adjusting roller group, and the heights of the third guide roller and the adjusting roller group are consistent; a fifth guide roller is arranged below one side of the fourth guide roller at intervals, a sixth guide roller is arranged above one side of the fifth guide roller at intervals, a seventh guide roller is arranged below one side of the sixth guide roller, two groups of eighth guide rollers are arranged above one side of the seventh guide roller at intervals, fourth adjusting rollers are arranged between the eighth guide rollers at intervals from top to bottom, raw materials of the PE pipe can pass through the fourth adjusting rollers, a fifth adjusting roller is further arranged on one side of the fourth adjusting rollers, and the side walls of the fifth adjusting rollers and the fourth adjusting rollers are mutually abutted; a ninth guide roller is arranged between the eighth guide roller and the second reel; third adjusting rollers are arranged on the upper top surface of the sixth guide roller at intervals, and raw materials of the PE pipe pass through the third adjusting rollers and the sixth guide roller; and one side of the sixth guide roller is also abutted with a tenth guide roller, and a fourth rotating shaft is arranged at one side of the tenth guide roller at intervals.
The working principle and the beneficial effects of the invention are as follows:
the invention provides a blasting method of an open-air fissure development rock stratum, which comprises the following steps: setting a construction section, and carrying out blasting evaluation according to the construction section; calculating the blasting point position and the explosive amount according to the blasting evaluation result; punching the construction section according to the blasting point position and the explosive amount, and charging the blast hole; connecting the explosives on each blasting point and detonating the explosives. The method is used for fully utilizing the collected geographic information and environmental information to carry out blasting calculation on the blasting area in the blasting process, so that the blasting effect in the blasting process is improved, the condition that secondary blasting is caused because part of blasting points after blasting do not meet blasting requirements is reduced, the condition that long-time pollution is caused to the environment by gunpowder due to multiple times of blasting is further reduced, the blasting accuracy is improved, the explosives required by blasting can be saved, and the production efficiency is further improved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a flow chart of the present invention;
FIG. 2 is a schematic structural view of a drug blending device according to the present invention;
FIG. 3 is a schematic perspective view of the device for mixing drugs according to the present invention;
FIG. 4 is a schematic view of the discharge pipeline of the medicine mixing device of the present invention;
FIG. 5 is a schematic view of the mixing chamber of the present invention;
FIG. 6 is a schematic structural view of a mixing silo and a discharging pipe of the present invention;
FIG. 7 is a schematic view of the structure of the rolling machine of the present invention;
FIG. 8 is a schematic perspective view of the material rolling machine of the present invention;
FIG. 9 is a schematic cross-sectional view of the material rolling machine of the present invention;
FIG. 10 is a schematic view of the bottom plate structure of the present invention;
FIG. 11 is a schematic view of a second adjustment mechanism of the present invention;
FIG. 12 is a schematic view of a first adjustment mechanism of the present invention;
FIG. 13 is a perspective view of a second adjustment mechanism of the present invention;
FIG. 14 is a front view of a second adjustment mechanism of the present invention;
FIG. 15 is a schematic view of an adjusting frame according to the present invention;
FIG. 16 is a schematic view of a third adjustment mechanism of the present invention;
FIG. 17 is a perspective view of a third adjustment mechanism of the present invention;
FIG. 18 is a schematic view of a tenth guide roll according to the present invention;
FIG. 19 is a schematic view of the vibrator of the present invention;
FIG. 20 is a schematic view of a shear and fusion machine of the present invention;
wherein 1-first enclosure, 2-second enclosure, 3-console, 4-first reel, 5-first drive, 6-second reel, 7-second drive,
8-a first adjusting mechanism, 9-a bottom plate, 10-a second adjusting mechanism, 11-a third adjusting mechanism, 12-a first guide roller, 13-a second guide roller, 14-PE pipe raw materials, 15-a third guide roller, 16-a fourth guide roller, 17-a fifth guide roller, 18-a sixth guide roller, 19-a seventh guide roller, 20-an eighth guide roller, 21-a first vertical plate,
22-first adjusting roller group, 22-1-first upper adjusting roller, 22-2 first lower adjusting roller, 23-second adjusting roller group, 23-1-second upper adjusting roller, 23-2-second lower adjusting roller, 24-third adjusting roller, 25-fourth adjusting roller, 26-fifth adjusting roller, 27-ninth guide roller, 28-second vertical plate, 29-base, 30-first motor, 31-first connecting rod, 32-second connecting rod, 33-third connecting rod, 34-second motor, 35-limit sleeve, 36-guide column,
37-a first adjusting block, 38-a first mounting plate, 39-a first telescopic rod, 40-a first notch, 41-a first rotating shaft, 42-a first adjusting plate, 43-a second notch, 44-a second adjusting block, 45-a second rotating shaft, 46-a second telescopic rod, 47-a third motor, 48-a connecting rod, 49-an adjusting frame, 50-a pushing block, 51-a connecting plate, 52-a third notch, 53-a fourth notch, 54-a bearing, 55-a first spring, 56-a limiting stopper, 57-a U-shaped frame, 58-a heat dissipation wheel, 59-a first gear and 60-a second mounting plate,
61-third mounting plate, 62-second gear, 63-discharging notch, 64-third gear, 65-fourth mounting plate, 66-second adjusting plate, 67-adjusting gear, 68-first chain, 69-third rotating shaft, 70-second chain, 71-third chain, 72-fourth gear, 73-shaft disc, 74-fourth rotating shaft, 75-tenth guide roller, 76-fourth motor, 77-speed reducer, 78-first cover body, 79-feeding hole, 80-second cover body, 81-discharging pipe, 82-rotating disc, 83-first rotating wheel, 84-fifth rotating shaft, 85-mixing rod, 86-mixing bin, 87-second rotating wheel;
88-a fixed block, 89-a second spring, 90-a swing rod, 91-a working rod, 92-a sliding rail, 93-a third rotating wheel, 94-a movable groove, 95-a fourth rotating wheel, 96-an adjusting disc, 97-a sixth rotating shaft, 98-a fifth mounting plate, 99-a vertical frame, 100-a welding plate, 101-a fifth motor, 102-a sixth motor, 103-a first cutter and 104-a second cutter.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
According to the embodiment of the invention, as shown in fig. 1, the blasting method for the open-air fissure developmental rock stratum comprises the following steps:
determining a construction section, and carrying out blasting evaluation according to the construction section;
calculating the blasting point position and the explosive amount according to the blasting evaluation result;
punching the construction section according to the blasting point position and the explosive amount, and charging the blast hole;
connecting the explosives on each blasting point and detonating the explosives.
Wherein, confirm that the construction section includes: and acquiring the geographic information of the mineral acquisition area by remote sensing mapping, confirming the construction section according to the geographic information of the mineral acquisition area, carrying out blasting simulation on the confirmed construction section, and acquiring a blasting evaluation result.
The method is used for fully utilizing the collected geographic information and environmental information to carry out blasting calculation on the blasting area in the blasting process, so that the blasting effect in the blasting process is improved, the condition that secondary blasting is caused because part of blasting points after blasting do not meet blasting requirements is reduced, the condition that long-time pollution is caused to the environment by gunpowder due to multiple times of blasting is further reduced, the blasting accuracy is improved, the explosives required by blasting can be saved, and the production efficiency is further improved.
In the invention, the geographic information acquisition of a construction section is realized through remote sensing mapping, the type or the state of a rock stratum of the construction section is further determined by utilizing the geographic information acquired by the geographic information acquisition, and then blast holes and explosive amount are determined according to the type or the state of the rock stratum, so that the aim of achieving safe detonation by utilizing the least blast holes and explosive amount is fulfilled; meanwhile, the situations of increased production cost and low production efficiency caused by excessive explosive amount or excessive blast holes are reduced, and the situation of excessive explosion caused by the reasons is reduced; moreover, the situation that multiple times of detonating are needed due to unsuccessful primary detonating caused by too little explosive amount or too few blast holes is reduced, the production cost is effectively reduced, and the production efficiency is improved; meanwhile, the condition that irreversible damage is caused to a construction section and a mountain body or the environment nearby the construction section in the detonation process due to multiple times of detonations or excessive explosives can be reduced by one-time qualified detonating, and the environment protection effect can be obvious under the condition of safe construction.
In one embodiment, the construction section is a fracture-developing rock formation, wherein the mining slope angle of the portion of the deposit rock mass within the construction section is less than or equal to 60 °; the side slope angle is correspondingly reduced by 5 degrees when the height from the mining chassis to the surface slope is increased by 100 meters; the slope angle of the loess covering layer near the earth surface is less than or equal to 45 degrees.
In the actual construction process, the blasting point positions comprise a plurality of rows of step-shaped blast hole rows, and each step-shaped blast hole row comprises a plurality of blast holes; the aperture d of the blast hole is 0.1-0.2 m; the step height of the step-shaped blast hole row is 10-20 m;
the row length L of the blast holes is as follows: l ═ H/sin a; h is the step height, H is the hole ultra-depth, and sin a is the blast hole inclination angle; wherein H is (0.1 to 0.2) H.
Determining a hole density coefficient m of each of the blast holes according to a state of the developing rock formation, including: when the rock structure is complete, m is 1.7; when the rock is broken and the cracks develop, m is 1.2; when the jointing fissure of the current mining area develops, m is 1.2.
In the embodiment, the blast hole density is determined according to the geographical environment state and the rock state of the crack development rock in the construction section, so that the blasting efficiency can be greatly improved, and in the actual construction process, the blast hole or the explosive amount is determined according to different rock stratum states, so that the construction cost is reduced, and the construction time is shortened.
In one embodiment, the explosive dosage calculation comprises: determining the explosive amount according to the state of a developing rock stratum, and determining the fragmentation degree and the minimum resistance line of blasting according to the explosive amount; wherein the dosage q of the explosive is pi (d/2)2Rho; d is the bore diameter of the blast hole, and rho is the density of the explosive. Wherein the line of least resistance w ═ b · sin a; wherein b is the row pitch, and sin a is the blast hole inclination angle.
In this embodiment, the minimum resistance line is used for determining a safety area and a detonation area in an actual construction process; the method is favorable for determining the explosive amount according to the site construction state and the site detonation environment, and can ensure that the detonation effect can reach the expected detonation effect while ensuring safe construction. The blasting is favorable for being capable of blasting successfully in one time in the blasting process, and the safe area and the detonation area are both in a controllable range.
In one embodiment, the explosive density includes, but is not limited to, any one of a porous granular amine oil explosive, a powdered finished explosive, a rock emulsion explosive.
In the actual construction process, the type of the explosive can be determined according to the environment state of the field construction section and the detonation requirement, and different types of explosive densities can be obtained according to the type of the explosive, so that the calculated explosive loading and the detonation effect can be estimated by utilizing the corresponding explosive density.
In one embodiment, as shown in fig. 1-19, further comprising: the PE pipe is sent into a blast hole by a coiler, and the side surface and the bottom of the PE pipe are welded in the sending process; starting a medicine mixing device to mix the explosives uniformly according to the types of the explosives; charging the uniformly mixed explosive to an opening at the upper end of the welded PE pipe through the determined explosive amount; and guiding the explosive entering the PE pipe into the bottom of the PE pipe by using the explosive charging device.
In the embodiment, the winder can be transported and moved to a blasting point needing construction at any time in a construction section through a transport vehicle, and the aims of automatically feeding a PE pipe into a blast hole of the blasting point and automatically welding the PE pipe after the blast hole reaches the blasting point can be fulfilled; meanwhile, after the PE pipe is welded and arranged in the blast hole, the explosive needing to be mixed uniformly can be mixed uniformly through the mixing device, and then the mixed explosive is sent into the PE pipe of the blast hole, so that the aims of automatically guiding the PE pipe and automatically filling the explosive are fulfilled, and the construction efficiency is greatly improved.
In one embodiment, as shown in fig. 1-20, the material reel includes: a bottom plate 9, wherein traveling wheels are arranged below the bottom plate 9, a first shell 1 and a second shell 2 are arranged above the bottom plate 9 at intervals, a reel set for pulling and rolling and outputting a PE pipe raw material 14 is formed between the first shell 1 and the second shell 2,
the reel set comprises a first reel 4 and a second reel 6, the first reel 4 and the second reel 6 are arranged on the upper surface of a bottom plate 9 at intervals, a first driver 5 is arranged on one side of the first reel 4, a second driver 7 is arranged on one side of the second reel 6, and the first driver 5 and the second driver 7 are respectively used for driving the first reel 4 and the second reel 6; the first reel 4 and the second reel 6 are respectively arranged on the upper surface of the bottom plate 9 through a support plate frame;
a first vertical plate 21 and a second vertical plate 28 are oppositely arranged between the first reel 4 and the second reel 6, the first vertical plate 21 and the second vertical plate 28 are used for installing a reel set, and the reel set is used for outputting the PE pipe raw material 14 on the first reel 4 and the second reel 6; the first vertical plate 21 and the second vertical plate 28 are connected into a whole through a plurality of connecting rods 48;
the reel set includes: a first guide roller 12 and a second guide roller 13 are arranged on one side of the first winding shaft 4 close to the second winding shaft 6 at intervals, wherein the first guide roller 12 is lower than the second guide roller 13 in height, and the first guide roller 12 is arranged close to the lower part of the first winding shaft 4;
the side, close to the second reel 6, of the second guide roller 13 is provided with adjusting roller sets at intervals, the adjusting roller sets are arranged at intervals up and down, and a PE pipe raw material 14 passes through the two adjusting roller sets; the height of the adjusting roller group is higher than that of the second guide roller 13;
a third guide roller 15 and a fourth guide roller 16 are arranged on one side of the adjusting roller group at intervals, the height of the fourth guide roller 16 is higher than that of the adjusting roller group, and the heights of the third guide roller 15 and the adjusting roller group are consistent;
a fifth guide roller 17 is arranged below one side of the fourth guide roller 16 at an interval, a sixth guide roller 18 is arranged above one side of the fifth guide roller 17 at an interval, a seventh guide roller 19 is arranged below one side of the sixth guide roller 18, two groups of eighth guide rollers 20 are arranged above one side of the seventh guide roller 19 at an interval, fourth adjusting rollers 25 are arranged between the eighth guide rollers 20 at an interval from top to bottom, a PE (polyethylene) pipe raw material 14 passes through the fourth adjusting rollers 25, a fifth adjusting roller 26 is further arranged on one side of the fourth adjusting rollers 25, and side walls of the fifth adjusting roller 26 and the fourth adjusting rollers 25 are abutted to each other; a ninth guide roller 27 is arranged between the eighth guide roller 20 and the second reel 6;
a third adjusting roller 24 is arranged on the upper top surface of the sixth guide roller 18 at intervals, and a PE pipe raw material 14 passes through the third adjusting roller 24 and the sixth guide roller 18;
a tenth guide roller 75 is further abutted to one side of the sixth guide roller 18, and a fourth rotating shaft 74 is arranged at one side of the tenth guide roller 75 at intervals.
The first adjusting mechanisms 8 are used for adjusting the distance between the upper adjusting roller set and the lower adjusting roller set, and the first adjusting mechanisms 8 are arranged at two ends of the adjusting roller set to be adjusted in a pairwise mode; the first adjustment mechanism 8 includes: the upper top of the first vertical plate 21 is provided with a second notch 43, the open end of the second notch 43 is used for mounting the first mounting plate 38, the upper surface of the first mounting plate 38 is provided with spacing sleeves 35 at intervals, the spacing sleeves 35 are respectively sleeved with guide posts 36, and the guide posts 36 penetrate through the first mounting plate 38 and are connected with a first adjusting plate 42;
a second motor 34 is further arranged above the first mounting plate 38, a telescopic end of the second motor 34 penetrates through the first mounting plate 38 and extends into a first notch 40 on a first adjusting plate 42, the telescopic end is connected with a first telescopic rod 39, a first adjusting block 37 is connected below the first telescopic rod 39, and the first adjusting block 37 is used for mounting an adjusting roller set;
the set of adjustment rollers includes: the first adjusting roller set 22 and the second adjusting roller set 23 are arranged at intervals, and gaps between the two adjusting roller sets are used for passing through the PE pipe raw material 14; the first adjusting roller set 22 comprises a first upper adjusting roller 22-1 and a first lower adjusting roller 22-2, two ends of the first upper adjusting roller 22-1 are connected with a first adjusting plate 42, two ends of the first lower adjusting roller 22-2 are connected with a first vertical plate 21 and a second vertical plate 22, the guide column 36 is rotatably connected with the first adjusting plate 42, the guide column 36 is in threaded connection with a limiting sleeve 35, and the first adjusting plate 42 is located in a second notch 43 in a reciprocating motion mode.
The second adjusting roller set 23 comprises a second upper adjusting roller 23-1 and a second lower adjusting roller 23-2, two ends of the second upper adjusting roller 23-1 are connected with a first adjusting block 37 through a first rotating shaft 41, adjusting holes are respectively formed in the first vertical plate 21 and the second vertical plate 28, two ends of the second lower adjusting roller 23-2 penetrate through the adjusting holes through a second rotating shaft 45 and are connected with a second adjusting block 44, a second telescopic rod 46 is connected below the second adjusting block 44, a third motor 47 is connected to the lower end of the second telescopic rod 46, and the third motor 47 is respectively installed on the side wall of the first vertical plate 21 or the side wall of the second vertical plate 28.
Two groups of second adjusting mechanisms 10 are arranged and are respectively positioned in the centers of the second vertical plate 28 and the third vertical plate, and the second adjusting mechanisms 10 are used for being installed at two ends of the sixth guide roller 18 and adjusting the position of the sixth guide roller 18; the second adjustment mechanism 10 includes: base 29, base 29 fixes the last top surface at bottom plate 9, it has first motor 30 to articulate on the base 29, first connecting rod 31 is connected to the drive end of first motor 30, the other end of first connecting rod 31 rotates connects second connecting rod 32, the articulated third connecting rod 33 of the other end of second connecting rod 32, the articulated ejector pad 50 of the other end of third connecting rod 33, the another side interval of ejector pad 50 is equipped with the telescopic link, all overlap on the telescopic link and be equipped with first spring 55, first spring 55 with adjusting frame 49 is connected respectively to the other end of telescopic link, be provided with bearing 54 on the adjusting block, bearing 54 is used for installing sixth guide roll 18.
The third adjusting mechanism 11 is used for adjusting the tension of the output raw PE pipe material 14 and reducing the material jamming condition when the raw PE pipe material 14 is output; the third adjustment mechanism 11 includes: the U-shaped frame 57, a U-shaped opening end of the U-shaped frame 57 is erected on a side wall of the first vertical plate 21, a heat dissipation wheel 58 is rotatably arranged on the U-shaped frame 57, one side of the heat dissipation wheel 58, which is close to the first vertical plate 21, is sequentially connected with a first gear 59, an eighth gear and a shaft disc 73 through a fourth rotating shaft 74, a second gear 62 is meshed with one side of the first gear 59, the second gear 62 is connected with a second adjusting plate 66 through a rotating shaft and a bearing 54, and the rotating shaft of the second gear 62 penetrates through the first vertical plate 21 and is connected with an end part of a tenth guide roller 75;
the second adjusting plate 66 is fixed on the first vertical plate 21 through a second mounting plate 60, a third mounting plate 61 is arranged on one surface, away from the first vertical plate 21, of the second adjusting plate 66, adjusting gears 67 are respectively arranged on the third mounting plate 61 and the second adjusting plate 66, a sixth gear is further arranged on a rotating shaft of the second gear 62, fifth mounting plates 98 are arranged below the second mounting plate 60 at intervals, the adjusting gears 67 are arranged on the fifth mounting plates 98, third gears 64 and third rotating shafts 69 are arranged on the first vertical plate 21 at intervals, a seventh gear is further connected to one side, close to the first vertical plate 21, of the third rotating shaft 69, and the seventh gear and the sixth gear are linked through a second chain 70; and the outer side wall of the second chain 70 is meshed with the adjusting gear 67 of the fifth mounting plate 98; the adjusting gear 67 of the fifth mounting plate 98 is transversely adjusted by the fifth mounting plate 98;
a fourth mounting plate 65 is further arranged on one side, away from the second gear 62, of the third gear 64 at intervals, the fourth mounting plate 65 is arranged on the side surface of the first vertical plate 21 at intervals up and down, second adjusting plates 66 are respectively arranged on the fourth mounting plates 65, adjusting gears 67 are respectively arranged on the second adjusting plates 66, and each adjusting gear 67 is linked with the third gear 64, the eighth gear, the second mounting plate 60 and the adjusting gear 67 correspondingly arranged on the third mounting plate 61 through a first chain 68; one side of the U-shaped frame 57 is further provided with a fourth gear 72, and the fourth gear 72 is connected with an eighth gear connected with a fourth rotating shaft 74 through a third chain 71 and is linked through the third chain 71.
The fourth gear 72 is connected with an end of one of the fourth regulating rollers 25; two ends of the other fourth adjusting roller 25 are respectively connected to the first vertical plate 21 and the second vertical plate 28 in an adjustable manner through the first adjusting mechanism 8; the fourth rotating shaft 74 is connected with a first driving motor, the rotating shaft corresponding to the third gear 64 is connected with the fifth guide roller 17, and the third rotating shaft 69 is correspondingly connected with a fan; the first vertical plate 21 is further provided with a stopper 56, the other end of the stopper 56 is a rotating wheel end, and the rotating wheel end abuts against the outer wall of the tenth guide roller 75 and is used for limiting the position of the tenth guide roller 75. The open end of the third notch 52 is provided with a connecting plate 51, and the connecting plate 51 is used for mounting the third adjusting roller 24.
A discharge notch 63 is formed in the center of the bottom plate 9, and the discharge notch 63 is used for outputting the uniformly mixed explosive to a blast hole by a medicine uniformly mixing device; medicine mixing device erects the upper surface of bottom plate 9, medicine mixing device includes: the output end of the fourth motor 76 is connected with a speed reducer 77, the output end of the speed reducer 77 extends into a first cover body 78, a rotating disc 82 is arranged in the first cover body 78, one surface of the rotating disc 82 is connected with the extending end of the speed reducer 77, a fifth rotating shaft 84 is arranged on the other surface of the rotating disc 82, a mixing rod 85 is arranged on the fifth rotating shaft 84, the rotating disc 82 is of a triangular structure, a first rotating wheel 83 is arranged at two corners of the triangular structure in a rotating mode, a second rotating wheel 87 is arranged at the other corner of the triangular structure in a rotating mode, a rolling groove parallel to the axis is formed in the circumferential outer wall of the first rotating wheel 83, and a drainage groove of an annular structure is formed in the circumferential outer wall of the second rotating shaft 45; a mixing bin 86 is further sleeved in the first cover body 78, a second cover body 80 is arranged at one end, far away from the speed reducer 77, of the first cover body 78 and the mixing bin 86 in a communicating mode, a feeding hole 79 is formed in the upper top face of the second cover body 80, a discharging pipe 81 is arranged below one side of the first cover body 78, and the end portion of the discharging pipe 81 corresponds to the discharging groove opening 63;
further comprising: the device that vibrates, the device that vibrates erects in bottom plate 9 top, the device that vibrates includes: the fixing block 88 is erected on the side wall of the first vertical plate 21 or the second vertical plate 28, the fixing block 88 is connected with a swing rod 90 of a V-shaped structure through a second spring 89, the V-shaped position of the swing rod 90 is erected on the upper surface of the bottom plate 9 through a supporting shaft, one end, far away from the second spring 89, of the swing rod 90 is rotatably provided with a third rotating wheel 93, and the third rotating wheel 93 is located in a movable groove 94 in the outer wall of the working rod 91 and reciprocates; one end of the working rod 91 reciprocates on a sliding rail 92 erected above the bottom plate 9, the other end of the working rod 91 is provided with a fourth rotating wheel 95, the fourth rotating wheel 95 is abutted against the outer wall of an adjusting disc 96, one surface of the adjusting disc 96 is connected with a sixth rotating shaft 97, the sixth rotating shaft 97 is connected with a third driving motor, and the axes of the sixth rotating shaft 97 and the adjusting disc 96 are arranged at intervals; the working rod 91 is used for tamping the explosive fed into the blast hole.
The upper top surface of the sixth guide roller 18 is also provided with a first adjusting mechanism 8 for adjusting the height of the sixth guide roller 18; the first adjusting mechanism 8 is used for adjusting the height of the sixth guide roller 18 up and down; and when the height of the sixth guide roll 18 reaches the shearing height, starting a welding machine by a controller to weld the PE pipe raw materials 14 on two sides and forming a PE pipeline; and after the melting is finished, starting a shearing machine to shear the PE pipe; then, starting the vibrating device, and feeding the PE pipe into the blast hole by using the working rod 91; and finally, starting the medicine blending device to deliver the blended medicine into the PE tube.
The shearing machine and the welding machine are arranged on a vertical frame 99, two groups of vertical frames 99 are symmetrically arranged on two sides of the discharging notch 63, a sixth motor 102 is arranged on the upper top surface of one vertical frame 99, the telescopic end of the sixth motor 102 faces the other vertical frame 99 opposite to the telescopic end of the sixth motor 102, the telescopic end of the sixth motor 102 is connected with a first cutter 103, and the lower part of the first cutter 103 is connected with the lower part of the vertical frame 99 through a telescopic rod; the other vertical frame 99 is connected with a second cutter 104 through a connecting rod, the first cutter 103 and the second cutter 104 are used for cutting the tail end of the PE pipe raw material 14, the first cutter 103 and the second cutter 104 are both in a U-shaped structure, and the opening of the U-shaped structure is arranged downwards;
the welding machine comprises welding plates 100, two groups of welding plates 100 are arranged, fifth motors 101 are arranged on the vertical frames 99 at intervals respectively, the driving ends of the fifth motors 101 are connected with the welding plates 100 through telescopic rods respectively, the melting ends of the two welding plates 100 are arranged oppositely, and the two welding plates are matched with each other to weld the PE pipe raw materials 14; the welding plate 100 is a U-shaped structure, and an opening of the U-shaped structure is disposed upward. The welding plate 100 and the first cutter 103 are both adjustable in U-shaped structure, and are used for adjusting the cutting distance or welding distance between the first cutter 103 and the welding plate 100 through the adjustable structure.
In the embodiment, in the using process of the conventional PE pipe, the tubular PE pipe is directly cut into the required size by using a cutting knife and is sent into the blast hole; different blast holes are required to be correspondingly different, so that different PE pipes are required to be configured according to different blast hole diameters during construction, and meanwhile, the bottoms of the PE pipes still need to be manually welded after cutting, so that the bottoms of the PE pipes are closed and explosive filling is facilitated; therefore, the construction efficiency is extremely low, and the condition of excessive welding or incomplete welding is caused by improper operation of workers when the bottom of the PE pipe is welded manually; and through the coiling machine can realize cutting and butt fusion to the PE pipe in real time in the work progress for the PE pipe can correspond each other with the big gun hole, reduces the unmatched condition of PE pipe and big gun hole diameter in the use.
Be equipped with operation panel 3 on the second shell 2 of rolling machine, operation panel 3 does benefit to the purpose that the staff carries out a key start to rolling machine or carries out independent operation or regulation to its corresponding driver part, motor etc.. The rolling machine moves in a construction section through a travelling wheel, blast hole positioning machines are further arranged at intervals in the circumferential direction of the discharge notch 63 of the bottom plate 9 and are used for collecting ground information through a camera or infrared rays, determining the position of a blast hole and driving the travelling wheel to align the discharge notch 63 of the rolling machine with the blast hole;
then, starting the first driver 5 and the second driver 7, enabling the first driver 5 and the second driver 7 to respectively drive the first reel 4 and the second reel 6 to respectively rotate, sequentially outputting the PE pipe raw material 14 to the central position of the bottom plate 9 through the reel groups, respectively guiding the end parts of the first reel 4 and the second reel 6 to the positions of the discharging notches 63 by using the sixth guide roll 18, namely, welding the end parts of the PE pipe raw material 14 by using a welding machine, and cutting the welded PE pipe by using a shearing machine after welding;
finally, the working rod 91 of the vibrating device is utilized to send the PE pipe into the blast hole; then the uniformly mixed explosive is output to a discharge notch 63 through a medicine uniformly mixing device and finally sent into a PE pipe; when the feeding process, when the explosive is stuck, the vibrating device can be started, and the part stuck is dredged by the working rod 91, so that the purpose of automatic construction is achieved, the construction efficiency is improved, the construction safety is improved, and the condition of manual construction is reduced.
In the invention, when the winder works and the PE pipe raw material 14 is conveyed unsmoothly, the first adjusting mechanism 8, the second adjusting mechanism 10 and the third adjusting mechanism 11 can be used for respectively adjusting the corresponding shaft rollers, so that the condition that the PE pipe raw material 14 is not conveyed unsmoothly due to overlarge or undersize gaps between the shaft rollers can be ensured during working. Specifically, first adjustment mechanism 8 is used for adjusting the interval regulation of roller set, and, first adjustment mechanism 8 combines third adjustment mechanism 11 to realize carrying out interval or rate of tension's regulation between a plurality of adjustment roller sets or roller group. When the device works, after the second motor 34 is started, the first telescopic rod 39 is driven to move up and down, so that the first adjusting block 37 moves up and down, the second upper adjusting roller 23-1 is driven to move up and down, and the distance between the second upper adjusting roller 23-1 and the first lower adjusting roller 22-2 is adjusted; meanwhile, the first adjusting plate 42 moves up and down in the second notch 43 by utilizing the rotation of the guide post 36, so that the aim of moving the whole adjusting roller set up and down is further fulfilled, and the aim of moving the space between the two groups of adjusting roller sets arranged at intervals up and down is fulfilled; the second telescopic rod 46 drives the second adjusting block 44 to move up and down by the driving of the third motor 47, and further the second rotating shaft 45 drives the second lower adjusting roller 23-2 to move up and down;
in the technical scheme, the purpose of finely adjusting the distance between the first upper adjusting roller 22-1 and the second upper adjusting roller 23-1 can be realized through the second motor 34, and the purpose of vertically adjusting the height of the second lower adjusting roller 23-2 is realized through the third motor 47; further realizing fine adjustment of the passing clearance of the PE pipe raw material 14 between the two adjusting roller sets; and the purpose that the first upper adjusting roller 22-1 or the first lower adjusting roller 22-2 for contacting the PE pipe raw material 14 is subjected to fine adjustment and correction by utilizing the fine adjustment second upper adjusting roller 23-1 or the second lower adjusting roller 23-2 after the first upper adjusting roller 22-1 or the first lower adjusting roller 22-2 is subjected to micro deformation in the working process is achieved; so that the PE pipe stock 14 is always straight and fits between the first upper dancer roll 22-1 and the first lower dancer roll 22-2 during transport.
Further, in order to facilitate the first upper adjusting roller 22-1 and the first lower adjusting roller 22-2 to be attached to the upper and lower surfaces of the raw PE pipe material 14, in the technical scheme, the distance between the first upper adjusting roller 22-1 and the first lower adjusting roller 22-2 is adjusted by adjusting the position of the first adjusting plate 42 in the second notch 43; the PE pipe raw material 14 with different thicknesses can be conveyed smoothly during construction.
The second adjusting mechanism 10 is mainly used for adjusting the working position of the sixth guide roller 18, so as to facilitate the adjustment of the distance between the sixth guide roller 18 and the fifth and tenth guide rollers 17 and 75, and specifically, after the first motor 30 is started, the first motor can drive the first connecting rod 31 to extend and retract, the second connecting rod 32 connected to the other end of the first connecting rod 31 swings, the second connecting rod 32 is sleeved on the second vertical plate 28 of the fourth notch 53, and the second connecting rod 32 is hinged to the second vertical plate 28 through the hinge shaft, so that the third connecting rod 33 connected to the other end of the second connecting rod 32 can reciprocate in the third notch 52 against the swing of the second connecting rod 32, and further the push block 50 drives the first spring 55 to push, and the first spring 55 further drives the adjusting frame 49 to be adjusted in the third notch 52 through the telescopic rod, therefore, the purpose of fine adjustment of the position of the sixth guide roller 18 is achieved, and the purpose of fine adjustment is favorably realized when the end parts of the PE pipe raw materials 14 output by the first reel 4 and the second reel 6 at two sides of the sixth guide roller 18 do not correspond to the discharging notch 63 in the working process.
The third adjusting mechanism 11 is used for adjusting the tension of the whole winding roller set and driving the winding roller set, so that the winding roller set can operate and convey the PE pipe raw material 14; specifically, when a first driving motor connected to the fourth rotating shaft 74 is started, the first driving motor drives the fourth rotating shaft 74 to rotate, and after the fourth rotating shaft 74 rotates, the fourth rotating shaft 74 drives the heat dissipation wheel 58, the first gear 59, the eighth gear and the shaft disc 73 to rotate on the first vertical plate 21; then, the first gear 59 is engaged with the second gear 62, and the tenth guide roller 75 which realizes the connection with the second gear 62 rotates, and the tenth guide roller 75 rotates to move with the PE pipe raw material 14 with the surface abutted; the heat dissipation wheel 58 is used for dissipating heat generated by the fourth rotating shaft 74, so as to reduce the heat dissipation of the first driving motor to the fourth rotating shaft 74.
The eighth gear drives the fourth gear 72 to rotate through the third chain 71, and the fourth gear 72 drives the fourth adjusting roller 25 to rotate after rotating, so that the purpose that the fourth adjusting roller 25 abuts against the surface of the PE pipe raw material 14 and drives the PE pipe raw material 14 to move is achieved;
the second gear 62 and the sixth gear are linked through a second chain 70, so that the third rotating shaft 69 is rotated, and the fan connected with the third rotating shaft 69 is further rotated, so that the surface of the rotating reel group and the surface of the PE pipe raw material 14 are cooled by the fan, the problem that the temperature of the reel group and the PE pipe raw material 14 is high due to friction caused by overlong operation time is reduced, and further the explosive is unstable in the PE pipe fed into the forming process due to high temperature is solved; effectively improves the construction safety.
In the third adjustment mechanism 11, a plurality of adjustment gears 67 for adjusting the distance between the first chain 68 and the second chain 70 are respectively arranged on the first chain 68 and the second chain 70, so that the tension of the first chain 68 and the second chain 70 is adjusted, the stability of the raw PE pipe 14 in the construction process and the distance between each reel group are improved, and the purpose of adjusting the tension of the raw PE pipe is achieved.
After the PE pipe raw materials 14 are output to the construction length, starting the fifth motor 101, and driving the welding plate 100 to move towards two side surfaces of the two PE pipe raw materials 14 by using the fifth motor 101, so that the two PE pipe raw materials 14 are melted to form a PE pipe with a closed lower end and an open upper end;
at the moment, the sixth motor 102 is started again, the sixth motor 102 drives the first cutter 103 to move towards the second cutter 104, and the two cutters are used for cutting the welded PE pipe; then, a third driving motor connected with a sixth rotating shaft 97 is started, the working rod 91 is driven to move up and down by using the adjusting disc 96, and the PE pipe is further guided into the blast hole by using downward acting force; then, start the explosive mixing device and discharge the explosive of mixing to the PE intraductal from ejection of compact material pipe 81, at the in-process of filling in the explosive, if the intraductal jam condition that appears of PE, can start sixth pivot 97, reuse work lever 91 with the explosive toward the interior bottom of PE pipe smash into.
When the medicine blending device works, the fourth motor 76 is started firstly, the fourth motor 76 performs uniform speed and speed reduction treatment through the speed reducer 77 and drives the turntable 82 to rotate, and the turntable 82 rotates and then drives the mixing rod 85 connected with the other end to rotate; the materials entering the second cover body 80 from the feeding hole 79 are uniformly mixed by the mixing rod 85, and further flow into the mixing bin 86 from the second cover body 80 in the process of uniformly mixing; the two first rotating wheels 83 arranged on the periphery of the rotating disc 82 are matched with the inner wall of the mixing bin 86, so that the materials in the mixing bin 86 are further rolled and crushed, and in the rolling and crushing process, the materials fall between the first cover body 78 and the mixing bin 86 through the flow guide of the second rotating wheels 87 and the discharge holes in the inner wall of the mixing bin 86, and then the uniformly mixed explosives are discharged by using the discharge pipe 81 connected with the first cover body 78;
when the vibrating device works, the third driving motor connected with the sixth rotating shaft 97 is started, so that the adjusting disc 96 is driven to rotate, the circumferential outer wall of the adjusting disc 96 is matched with the upper top surface of the working rod 91, and the working rod 91 is adjusted up and down through the fourth rotating wheel 95; because the working rod 91 is pulled by the swing rod 90 with the V-shaped structure, the working rod 91 can move up and down through the cooperation of the second spring 89 and the adjusting disc 96, and the aims of guiding the PE pipe and guiding the explosive are fulfilled.
According to the invention, one-key forming and cutting of the PE pipe can be realized by arranging the coiling machine, the vibrating device, the shearing machine and the welding machine, and the PE pipe is automatically led into the blast hole, and the explosive is automatically mixed and led into the PE pipe; carry out quantitative mixing and ration according to medicine mixing device and send the medicine, realize that the medicine ration fills in the purpose of PE pipe, effectively improve the efficiency of construction, still guarantee simultaneously to fill in the medicine precision, reduce because of the artifical circumstances that leads to the medicine can not satisfy optimum initiation requirement of filling in the medicine.
In the scheme, if the blast hole is dry, the explosive is porous granular amine explosive or powdery finished explosive; if the blast hole contains water, in order to ensure the construction effectiveness and safety, the explosive is rock emulsion explosive; in order to facilitate smooth material guiding and safe construction, the working rod is made of an insulating material, the surface of the working rod is provided with an anti-adhesion layer, and the anti-adhesion layer can reduce the condition that explosives are brought out when the working rod is used for guiding materials; meanwhile, the working rod made of the insulating material can reduce the conductivity of the metal material to the explosive; in addition, the working rod can also prevent static electricity so as to reduce the condition that the static electricity causes detonation or explosion of the explosive due to instantaneous high-voltage static electricity of the static electricity.
And simultaneously, still be provided with humidity transducer on the work lever, humidity transducer is used for carrying out the humiture to work lever and operational environment and detects, if work lever or operational environment do not satisfy the construction requirement, then change the explosive or stop the construction to guarantee the purpose of safe construction. In the actual work progress, adopt PE pipe to carry out the construction and put the medicine, can make better uplift of cartridge under the certain circumstances of charge, make the explosive do work more evenly at the blasting in-process, can control the ore lump degree at reasonable within range, reduced the secondary breakage, for alleviateing shovel dress staff intensity of labour provides powerful support, also reduced equipment live time and oil consumption, and then reduced environmental pollution. In addition, the PE pipe isolates part of underground water in blast holes, so that the blasting reaction is more complete and is closer to zero oxygen balance, the generation of toxic gas in the blasting process is greatly reduced, and the method has important reference significance for green mining construction.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A blasting method for an open-air fracture development rock stratum is characterized by comprising the following steps:
determining a construction section, and carrying out blasting evaluation according to the construction section;
calculating the blasting point position and the explosive amount according to the blasting evaluation result;
punching the construction section according to the blasting point position and the explosive amount, and charging the blast hole;
connecting the explosives at each blasting point, and detonating the explosives.
2. The method of blasting the opencast fissured developmental formation as defined in claim 1, wherein the determining the construction section comprises:
obtaining the geographic information of the mineral acquisition area by remote sensing mapping,
and confirming the construction section according to the geographic information of the mineral acquisition area, carrying out blasting simulation on the confirmed construction section, and obtaining a blasting evaluation result.
3. The method of blasting an open-air fractured developing rock formation of claim 1, wherein the construction segment is a fractured developing rock formation,
wherein the mining slope angle of the ore deposit rock mass part in the construction section is less than or equal to 60 degrees;
the side slope angle is correspondingly reduced by 5 degrees when the height from the mining chassis to the surface slope is increased by 100 meters; the slope angle of the loess covering layer near the earth surface is less than or equal to 45 degrees.
4. A method of blasting an open-air fissured developing rock formation as claimed in claim 1, wherein said blast site location comprises a plurality of stepped rows of blastholes, each of said stepped rows of blastholes comprising a plurality of blastholes;
the aperture d of the blast hole is 0.1-0.2 m; the step height of the step-shaped blast hole row is 10-20 m;
the blast hole row length L is as follows:
L＝(H+h)/sin a
wherein H is the step height, H is the hole ultra-depth, and sin a is the blast hole inclination angle; wherein H is (0.1 to 0.2) H.
5. The method of blasting open-air fractured developing rock formation according to claim 4, wherein the determining the hole density coefficient m of each blast hole according to the state of the developing rock formation comprises:
when the rock structure is complete, m is 1.7;
when the rock is broken and the cracks develop, m is 1.2;
when the jointing fissure of the current mining area develops, m is 1.2.
6. A method of blasting an open-pit fissured developing rock formation as claimed in claim 1, wherein the explosive charge calculation comprises:
determining the explosive amount according to the state of a developing rock stratum, and determining the fragmentation degree and the minimum resistance line of blasting according to the explosive amount;
wherein, the explosive dosage q is pi (d/2)2Rho; d is the bore diameter of the blast hole, and rho is the density of the explosive.
7. A method of blasting a surface fissile developmental formation as claimed in claim 6 wherein the density of the explosive comprises, but is not limited to, any of porous granular amine oil explosive, powdered finished explosive, rock emulsion explosive.
8. A method of blasting open-air fissured developmental formation as claimed in claim 6, wherein said line of least resistance w ═ b-sin a
Wherein b is the row pitch, and sin a is the blast hole inclination angle.
9. A method of blasting an open-pit fissured developmental formation as defined in claim 1, further comprising:
the PE pipe is sent into a blast hole by a coiler, and the side surface and the bottom of the PE pipe are welded in the sending process;
starting a medicine mixing device to mix the explosives uniformly according to the types of the explosives;
charging the uniformly mixed explosive to an opening at the upper end of the welded PE pipe through the determined explosive amount;
and guiding the explosive entering the PE pipe into the bottom of the PE pipe by using the explosive charging device.
10. A method of blasting open-pit fissured developmental formations as claimed in claim 9, wherein said coiler includes: the device comprises a bottom plate, wherein traveling wheels are arranged below the bottom plate, a first shell and a second shell are arranged above the bottom plate at intervals, a reel set used for pulling and rolling and outputting raw materials of a PE pipe is formed between the first shell and the second shell,
the reel set comprises a first reel and a second reel, the first reel and the second reel are arranged on the upper surface of the bottom plate at intervals, a first driver is arranged on one side of the first reel, a second driver is arranged on one side of the second reel, and the first driver and the second driver are respectively used for driving the first reel and the second reel;
the first reel and the second reel are respectively arranged on the upper surface of the bottom plate through a supporting plate;
a first vertical plate and a second vertical plate are oppositely arranged between the first scroll and the second scroll, the first vertical plate and the second vertical plate are used for installing a scroll group, and the scroll group is used for outputting the raw PE pipe materials on the first scroll and the second scroll; the first vertical plate and the second vertical plate are connected into a whole through a plurality of connecting rods;
the reel set includes: the first guide roller and the second guide roller are arranged on one side, close to the second scroll, of the first scroll at intervals, wherein the height of the first guide roller is lower than that of the second guide roller, and the first guide roller is arranged close to the lower portion of the first scroll;
the side, close to the second scroll, of the second guide roller is provided with adjusting roller sets at intervals, the adjusting roller sets are arranged at intervals up and down, and raw materials of the PE pipe pass through the two adjusting roller sets; the height of the adjusting roller group is higher than that of the second guide roller;
a third guide roller and a fourth guide roller are arranged on one side of the adjusting roller group at intervals, the height of the fourth guide roller is higher than that of the adjusting roller group, and the heights of the third guide roller and the adjusting roller group are consistent;
a fifth guide roller is arranged below one side of the fourth guide roller at intervals, a sixth guide roller is arranged above one side of the fifth guide roller at intervals, a seventh guide roller is arranged below one side of the sixth guide roller, two groups of eighth guide rollers are arranged above one side of the seventh guide roller at intervals, fourth adjusting rollers are arranged between the eighth guide rollers at intervals from top to bottom, raw materials of the PE pipe can pass through the fourth adjusting rollers, a fifth adjusting roller is further arranged on one side of the fourth adjusting rollers, and the side walls of the fifth adjusting rollers and the fourth adjusting rollers are mutually abutted; a ninth guide roller is arranged between the eighth guide roller and the second reel;
third adjusting rollers are arranged on the upper top surface of the sixth guide roller at intervals, and raw materials of the PE pipe pass through the third adjusting rollers and the sixth guide roller;
and one side of the sixth guide roller is also abutted with a tenth guide roller, and a fourth rotating shaft is arranged at one side of the tenth guide roller at intervals.
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| CN202210235994.XA CN114608395B (en) | 2022-03-11 | 2022-03-11 | Blasting method for open-air fracture development rock stratum |
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| RU2738331C1 (en) * | 2020-03-12 | 2020-12-11 | федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский горный университет" | Method of explosive preparation for selective excavation of ore body and covering overburden rocks |
| CN113390309A (en) * | 2021-05-19 | 2021-09-14 | 新疆工程学院 | Complex rock blasting method for open pit coal mine in arid region |
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2022
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102331212A (en) * | 2011-09-07 | 2012-01-25 | 薛世忠 | Loss and dilution controlled blasting method for open metal mine |
| CN205860890U (en) * | 2016-06-21 | 2017-01-04 | 中国电建集团华东勘测设计研究院有限公司 | A kind of demolition set adapting to underwater environment |
| CN106907139A (en) * | 2017-01-20 | 2017-06-30 | 徐斌 | The method that demolition set, blasting system and underground gasification coal seam loosen in advance |
| CN108613600A (en) * | 2018-05-24 | 2018-10-02 | 中钢集团武汉安全环保研究院有限公司 | A kind of emulsion deep water bores quick-fried means for loading and processing method |
| RU2738331C1 (en) * | 2020-03-12 | 2020-12-11 | федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский горный университет" | Method of explosive preparation for selective excavation of ore body and covering overburden rocks |
| CN113390309A (en) * | 2021-05-19 | 2021-09-14 | 新疆工程学院 | Complex rock blasting method for open pit coal mine in arid region |
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| CN114608395B (en) | 2023-06-13 |
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