JP2006038263A - Explosive loading device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an explosive loading device capable of continuously supplying cartridge-type explosives necessary for explosive loading work in blasting one by one, and reducing the explosive loading work. <P>SOLUTION: This explosive loading device 11 comprises a hopper 13 for storing columnar cartridge type explosives 12 in a state of being axially aligned, a lead-out passage 18 formed at a lower part of the hopper 13, a supply device 14 for supplying the cartridge-type explosives 12 led out from the lead-out passage 18, and a pressure-feeding device 15 connected with the supply device 14. The lead-out passage 18 leads out the cartridge-type explosives 12 in the hopper 13 in line. The pressure-feeding device 15 feeds the cartridge-type explosives 12 to a loading hose to guide the cartridge-type explosives to a blasting hole formed on a blasted object. The hopper 13 is extended in the vertical direction at one wall 17a, and the other wall 17b is formed into the taper shape inclined at a sharp angle while gradually narrowing an internal space toward a lower part with respect to one wall 17a. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an explosive loading device used for loading a bomb-like explosive such as a hydrous explosive into a blast hole when performing a blasting operation in a mine, a quarry, a tunnel or the like. More particularly, the present invention relates to an explosive loading device that can be mounted on a drill jumbo platform and can continuously supply a medicine-packed explosive.

  Several loading techniques are known in which a medicine-like explosive such as a hydrous explosive is pumped with compressed air into a blast hole drilled in a rock. The device for loading the encapsulated explosive into the blast hole is remotely operated by placing a large loading device with a scraper of the encapsulated explosive in the hopper behind the drill jumbo by moving means such as a truck. Has proposed an explosive loading device that pumps a medicine-packed explosive with compressed air and loads it into a blasting hole (see, for example, Patent Document 1).

  Since such a loading device is large, it is necessary to deliver medicine at a long distance from the loading device, and the medicine delivery time per medicine-packed explosive also becomes long. In addition, since the medicine-packed explosive collides with the next medicine-packed explosive during charging, it is necessary to control the impact pressure at the time of collision by the flow rate and pressure of compressed air in consideration of handling. However, the longer the transfer distance of the encapsulated explosive, the greater the distance between the inner surface of the loaded hose and the encapsulated explosive, or the loading hose up to the bedrock. Since the speed greatly changes, there is a problem that it is difficult to control the collision pressure (transfer speed). Further, in order to shorten the medicine delivery time, it is necessary to increase the pressure air pressure. In this case, the impact applied to the medicine-packed explosive at the time of loading is also increased. Furthermore, when a problem occurs in the loading device, the loading operator has to get off the platform and perform maintenance on the loading device.

  In order to solve the above problem, it is necessary to reduce the size of the apparatus and load it on the platform, and to load it with a short distance to the blast hole. As such a small loading device, there is known a loading device that supplies medicine-packed explosives one by one to a supply port (for example, see Non-Patent Document 1).

However, in such a loading device, it is not possible to continuously supply a medicine-packed explosive, and it is necessary to manually supply a medicine-packed explosive to the supply port one by one, which is troublesome in charging. there were. In addition, an apparatus has been proposed in which a hopper is installed at the upper part of the supply port, and medicine-packed explosives are arranged in a line in the vertical direction so that they can be continuously supplied one by one (for example, see Patent Document 2). .
"Loading hydrous explosives", Gunpowder and Security Vol.17, No.3, published in 1985 JP-A-9-126700 (pages 1 to 3) JP-A-58-120100 (first page, third page)

  However, since the loading device described in Patent Document 2 needs to arrange medicine-packed explosives in a line in the vertical direction, the number of medicine-packed explosives accommodated in the hopper is limited to a few. For this reason, only a few medicine-packed explosives can be supplied continuously, and it has been necessary to supply the medicine-packed explosive to the hopper many times during one charging operation.

  The present invention has been made paying attention to such problems existing in the prior art. The object is to provide an explosive loading device that can continuously supply the medicine-packed explosives required for the charge operation at the time of blasting one by one, and can reduce the charge operation. There is.

  In order to achieve the above object, an explosive loading device according to a first aspect of the present invention provides a hopper that accommodates a columnar medicine-packed explosive with its axis aligned, and a medicine-packed explosive in the hopper provided at the lower part of the hopper. A deriving passage led out to a row, a feeder for supplying one medicine-packed explosive led out from the leading passage one by one, and a medicine-packed explosive connected to the feeding machine and supplied from the feeder as an object to be blown A pressure feeder for feeding to a loading hose leading to the blasting hole provided, and the hopper is formed with tapered opposite walls so that the inner space becomes narrower toward the lower part, and the angle formed by both walls is an acute angle It is characterized by being set.

  The explosive loading device according to a second aspect of the present invention is the explosive loading device according to the first aspect, wherein one of the walls of the hopper extends in the vertical direction and the other wall is inclined at an acute angle with respect to the one wall. Has been.

  The explosive loading device according to a third aspect of the present invention is the explosive loading device according to the second aspect, wherein an angle formed by the both walls of the hopper is 30 to 60 °, and a center line connecting the central portion between the both walls of the hopper up and down The angle formed with the center line is 60 to 120 °.

  According to a fourth aspect of the present invention, there is provided the explosive loading device according to any one of the first to third aspects, wherein the feeder is constituted by a rotating drum that is driven to rotate, and an outer circumferential surface of the rotating drum is provided with a holding groove having an arcuate section. In the holding groove, the medicine-packed explosive led out from the lead-out passage is accommodated and rotated to supply the medicine-packed explosive to the pressure feeder one by one.

  The explosive loading device according to a fifth aspect of the present invention is the explosive loading device according to any one of the first to third aspects, wherein the feeder is provided with a cylinder having a reciprocating piston, and a medicine-packed explosive led out from the lead-out passage one by one. A positioning portion that stops at a position facing the piston, a push-up passage that pushes up the medicine-packed explosive obliquely upward with the piston, and a passage for dropping the medicine-packed explosive pushed up in the push-up passage and sending it to the pump Is provided.

  In any one of the first to fifth inventions, the explosive loading device according to a sixth aspect of the present invention is such that the pressure feeder is provided at a lower position of the feeder, and is formed between the cylindrical pressure feeder main body and the intermediate portion of the pressure feeder main body. A receiving part for receiving a medicine-packed explosive provided from a feeder, an extrusion part provided at a position rearward of the receiving part and reciprocating by a cylinder, and sending the medicine-packed explosive of the receiving part forward; A lubricating liquid supply section having a lubricating liquid passage provided in the section and a nozzle provided at the front end of the extruding section, and a pumping section provided in the front section of the main body of the pumping machine for pumping a medicine-packed explosive with gas pressure, and a receiving section After sending the medicine-packed explosive to the pumping section at the extrusion section, the lubricant liquid is ejected from the nozzle through the lubricating liquid passage from the lubricant supply section, and gas is supplied from the pumping section to pump the medicine-packed explosive. Is configured to do.

According to the present invention, the following effects can be exhibited.
According to the explosive loading apparatus of the first aspect of the present invention, the lead-out passage for leading the medicine-packed explosives in one row and the feeder for supplying one medicine-packed explosive led out from the lead-out passage are provided. For this reason, the medicine-packed explosive required for the charge operation at the time of blasting can be continuously supplied one by one, and the charge operation can be reduced.

According to the explosive loading device of the second invention, in addition to the effects of the first invention, the hopper can be narrowed to reduce the size.
According to the explosive loading device of the third invention, in addition to the effects of the second invention, it is possible to smoothly and surely derive the medicine-packed explosives one by one.

According to the explosive loading device of the fourth invention, in addition to the effects of any one of the first to third inventions, the medicine-packed explosive can be surely led out one by one by the rotation of the rotating drum.
According to the explosive loading device of the fifth invention, in addition to the effects of any one of the first to third inventions, the medicine-packed explosive can be surely led out one by one by the operation of the cylinder.

  According to the explosive loading device of the sixth aspect of the invention, in addition to the effects of any one of the first to fifth aspects of the invention, the medicine-packed explosive is ejected from the gas pressure supplied by the pressure feeding unit and the lubricating liquid supply unit. It can be pumped in a stable state with the lubricating liquid.

(First embodiment)
Hereinafter, a first embodiment in which the explosive loading device of the present invention is embodied will be described in detail.
Fig.1 (a) is a schematic plan view which shows the explosive loading apparatus which concerns on 1st Embodiment, FIG.1 (b) is the schematic front sectional view. 2 is a sectional view of the hopper, FIG. 3 is a side view showing the whole of the explosive loading device, and FIG. 4 is a side sectional view of an essential part showing the explosive loading device. As shown in FIGS. 1B and 3, the explosive loading device 11 includes a hopper 13 in which a cylindrical medicine-packed explosive 12 is accommodated with its axis aligned, and a medicine-packed explosive 12 from the hopper 13. The feeder 14 which supplies one by one, and the pump 15 for pumping the medicine-pack-like explosive 12 supplied from the feeder 14 into the blast hole of the bedrock which is a blasting object are provided.

  In the hopper 13, one opposing side walls 16 are configured in parallel, and the other opposing walls 17 a and 17 b have an inverted triangular cross section, that is, the opposing walls 17 a and 17 b have a narrower internal space at the bottom. Thus, it is formed in a tapered shape. The hopper 13 contains a large number of medicine-packed explosives 12, that is, an amount necessary for at least one blasting. The medicine-packed explosive 12 is loaded into the blast hole, and the diameter of the medicine is preferably designed in the range of 20 to 30 mm. The form of the medicine-packed explosive 12 is a cylindrical shape filled with paper or a plastic tube, and the explosive mass per one is generally about 100 to 200 g.

  As shown in FIG. 2, one wall 17a of the hopper 13 extends in the vertical direction, and the other wall 17b is inclined at an acute angle with respect to the one wall 17a. Here, the vertical direction means a direction perpendicular to the ground. The angle α formed by both the walls 17a and 17b is set at an acute angle so that the supply of the medicine-pack-shaped explosive 12 to the feeder 14 is performed smoothly. This angle α is preferably 30 to 60 °. When the angle α is less than 30 °, the quantity of the medicine-packed explosive 12 that can be accommodated in the hopper 13 is reduced, the number of times of supply of the medicine-packed explosive 12 to the hopper 13 is increased, and the working efficiency is lowered. On the other hand, when the angle α exceeds 60 °, the supply of the medicine-packed explosive 12 to the feeder 14 is not smooth, and the medicine-packed explosive 12 is likely to stagnate or close in the hopper 13.

  At the bottom of the hopper 13, a lead-out passage 18 for leading out the medicine-pack explosive 12 in the hopper 13 is provided so as to extend obliquely downward. It is preferable that an angle β formed by the center line 19 connecting the center portion between both walls 17a and 17b of the hopper 13 in the vertical direction and the center line 20 of the outlet passage 18 is 60 to 120 °. When the angle β is less than 60 °, the supply of the medicine-packed explosive 12 to the feeder 14 is not smooth, and the medicine-packed explosive 12 tends to stagnate or close in the hopper 13. On the other hand, when the angle β exceeds 120 °, the load applied to the feeder 14 by the medicine-packed explosive 12 in the hopper 13 is increased, and the medicine-packed explosive 12 is deformed and clogged in the feeder 14. It becomes easy, and it becomes easy to cause the supply failure of the medicine-packed explosive 12.

  On the extension line of the outlet passage 18, a feeder 14 for supplying the pack-shaped explosive 12 led out from the outlet passage 18 to the pressure feeder 15 one by one is disposed. The rotating drum 21 constituting the feeder 14 has a columnar shape, and a holding groove 22 capable of receiving and holding one medicine-pack-shaped explosive 12 is recessed in the outer peripheral surface thereof. A piston 23 that moves up and down is provided at a side position of the feeder 14, and a first air cylinder 24 that constitutes a driving mechanism of the feeder 14 is disposed, and a tip of the piston 23 is positioned below the large-diameter first cylinder. It is connected to one pulley 25, and the reciprocating motion of the piston 23 is changed to a rotational motion. A belt 27 is hung between the first pulley 25 and a small-diameter second pulley 26 provided at the center of the rotating drum 21, and the rotational driving force of the first pulley 25 is used as the second pulley 26, that is, the rotating drum 21. And the rotating drum 21 is rotated. This rotational motion may be a one-way rotational motion in which the holding groove 22 makes a round and returns to the hopper 13 side, or a reciprocating rotational motion in which the holding groove 22 reciprocates between the hopper 13 and the pressure feeder 15.

  At the lower position of the feeder 14, to a loading hose 28 (shown in FIGS. 3 and 4) that guides the medicine-packed explosive 12 supplied from the feeder 14 to a blast hole provided in a rock, which is an object to be blasted. A pressure feeder 15 for feeding is provided. Between the feeder 14 and the pressure feeder 15, a guide member 29 is provided for guiding the medicine-packed explosive 12 held in the holding groove 22 of the feeder 14 to the pressure feeder 15. The side of the guide member 29 is provided with a loading port 29a for supplying the contents, so that the contents can be automatically supplied to the pressure feeder 15.

  As shown in FIGS. 3 and 4, the pressure feeder 15 includes a pressure feeder main body 30 having a substantially cylindrical shape as a whole. The pressure feeder 15 is located in an intermediate portion of the pressure feeder main body 30 and receives a medicine-packed explosive 12 supplied from the feeder 14, and the medicine-packed explosive 12 placed in the rear and fed forward. The push-out part 32 is comprised from the feeding part 33 for pumping the medicine-pack-like explosive 12 located in the front part and extruded by the push part 32 to the loading hose 28. In the upper part of the receiving part 31, there is a through-hole 34 for dropping the medicine-packed explosive 12 supplied from the supply machine 14 into the pressure feeder 15.

  The push-out portion 32 includes a second air cylinder 35 constituting the drive mechanism and a pusher 36 provided at the front thereof, and the pusher 36 is advanced by the operation of the second air cylinder 35 to push the medicine pack explosive 12. It comes out. The pusher 36 includes a cylindrical main body portion 37, a first taper portion 38 whose diameter decreases from the front end to the front end, and a columnar contact portion 39 protruding from the front end. An annular seal portion 40 is formed so as to protrude from the contact portion 39. A lubricating liquid supply pipe 41 is disposed at the center of the second air cylinder 35 and the pusher 36, and is lubricated from a pump as a lubricating liquid supply mechanism (not shown) connected to a lubricating liquid supply port 43 provided at the rear end thereof. Liquid is supplied. The front end portion of the lubricating liquid supply pipe 41 is a spray nozzle 44 so that the lubricating liquid is ejected to the receiving portion 31. The lubricating liquid used here is preferably water from the viewpoint of economy and the like.

  The pressure feeding unit 33 includes a rear end side inlet portion 45, an intermediate main body cylinder portion 46, and a front end side loading hose connection portion 47. The inner peripheral portion of the inlet portion 45 is a second tapered portion 48 that is reduced in diameter toward the front end side so as to correspond to the first tapered portion 38 of the pushing portion 32. Then, as shown by the two-dot chain line in FIG. 4, when the pusher 36 moves forward and its abutting portion 39 pushes the medicine-packed explosive 12 to the pressure feeding portion 33, the first taper portion 38 becomes the second taper portion 48. The seal portion 40 is in close contact with the inner peripheral surface of the second taper portion 48 so that air does not leak.

  The main body cylinder portion 46 has a cylindrical shape, and the medicine-pack-shaped explosive 12 supplied from the supply machine 14 is temporarily positioned. A check valve 49 is provided on the inlet side of the main body cylinder portion 46 to prevent the medicine-packed explosive 12 entering the main body cylinder portion 46 from returning to the inlet portion 45 side. A loading air supply conduit 50 is connected to the lower portion of the main body cylinder portion 46, and air sent from an air compressor (not shown) as a driving mechanism of the pressure feeding portion 33 enters the main body cylinder portion 46 from the loading air supply conduit 50. Supplied and delivers the explosive charge 12 to the loading hose 28. The loading air supply line 50 is provided with a mud reservoir 51 for collecting foreign matter such as mud and sand entering from the loading hose 28. A blown compressed air supply pipe 52 for removing foreign matter such as water and pebbles in the blasting hole is connected to the lower part of the main body cylinder portion 46 on the front side of the loading air supply pipe line 50.

  A base end portion of the loading hose 28 is fitted and connected to the loading hose connection portion 47. The material of the loading hose 28 is preferably made of a synthetic rubber or a synthetic resin that is rich in flexibility. The gap between the inner peripheral surface of the loading hose 28 and the outer peripheral surface of the medicine-packed explosive 12 [(inner diameter of the loading hose−diameter of medicine-packed explosive) / 2] is preferably 2 to 3 mm. When this gap is larger than 3 mm, the air pressure loss increases, and when it is smaller than 2 mm, the frictional resistance of the medicine-packed explosive 12 with respect to the inner peripheral surface of the loading hose 28 increases, and an appropriate transfer speed is obtained in any case. It becomes impossible.

  By the way, in excavation of a tunnel, a drill jumbo (a large crane vehicle equipped with a drill) enters the tunnel in order to make a blast hole in a face in the tunnel and load an explosive there. A platform 53 (indicated by a two-dot chain line in FIGS. 1 (a) and 1 (b)) formed in a square box shape by a frame material is supported at the tip of the boom of this drill jumbo. The loading operation of the enveloped explosive 12 is performed. In the present embodiment, the explosive loading device 11 is mounted on the platform 53.

  That is, since the explosive loading device is mounted on the drill jumbo platform 53, it is preferable to have a small and simple structure as described above. Specifically, the mass is preferably 60 kg or less, and the apparatus size is preferably 60 cm in width, 60 cm in length, and 100 cm in height. When the mass exceeds 60 kg, it is difficult to manually mount the platform 53, and there is a possibility that the number of passengers on the platform 53 is also limited. In addition, when the apparatus size exceeds 60 cm in width, 60 cm in length, and 100 cm in height, the work space in the platform 53 becomes narrow, which may hinder the work. In the explosive loading device 11, the movement of each part is controlled by a control device (not shown) in order to securely load the medicine-packed explosive 12 into the blasting hole one by one. That is, the control device drives the drive mechanism of the feeder 14, the drive mechanism of the extruding unit 32, the drive mechanism of the pressure feeding unit 33, the lubricating liquid supply mechanism, and the like.

Next, the effect | action which loads the medicine package explosive 12 in a blasting hole using the above explosive loading apparatuses 11 is demonstrated.
Now, as shown in FIG. 1 (b), the medicine-packed explosive 12 charged into the hopper 13 is guided from the medicine-packed explosive 12 located at the bottom of the hopper 13 to the outlet passage 18 one by one by its own weight. It is burned. At this time, the medicine-packed explosive 12 located on the side of the wall 17a provided vertically acts only by downward gravity, and the medicine-packed explosive 12 located on the side of the wall 17b inclined at an acute angle with respect to the wall 17a. Gravity is divided into a direction along the wall 17b and a vertical direction thereof. For this reason, the medicine-packed explosive 12 has different force and direction due to gravity depending on the position, and acts so that the movement from the hopper 13 to the outlet passage 18 is performed smoothly. The medicine-packed explosive 12 guided to the lead-out passage 18 is accommodated and held in the holding groove 22 of the rotary drum 21. The rotating drum 21 is rotated clockwise in the drawing by the drive mechanism, and stops when the holding groove 22 reaches the receiving portion 31 of the pressure feeder 15, and the medicine-packed explosive 12 is passed through the through hole 34 into the receiving portion 31. To supply.

  Subsequently, when the second air cylinder 35 is driven, the abutting portion 39 of the pusher 36 pushes the medicine package explosive 12 into the pressure feeder 15. After the medicine-packed explosive 12 is pushed into the pressure feeder 15, the lubricating liquid is ejected from the spray nozzle 44 and loading air is ejected from the loading air supply line 50. Due to the ejection of the loading air, the medicine-packed explosive 12 is sent from the pressure feed unit 33 into the loading hose 28 and loaded into a blast hole (not shown).

  At this time, the gap between the inner peripheral surface of the loading hose 28 and the outer peripheral surface of the medicine-packed explosive 12 is set to 2 to 3 mm. Therefore, the pressure of the pressure-feeding air for loading was 0.2 MPa or more to properly load when the explosive loading device 11 was separated as much as the case where the explosive loading device 11 was installed behind the drill jumbo. In the case of the loaded explosive loading device 11 according to this embodiment, proper loading was possible at 0.1 MPa.

The effect by 1st Embodiment described above is described collectively below.
According to the explosive loading device 11 of the present embodiment, a delivery passage 18 that leads the medicine-packed explosives 12 in a row, and a feeder that supplies the medicine-packed explosives 12 that are led out from the delivery passage 18 one by one. 14 were provided. For this reason, the medicine-packed explosive 12 required for the charge operation at the time of one blasting can be continuously supplied one by one by its own weight, and the charge operation can be reduced. Therefore, it is possible to reliably control the amount of the medicine-packed explosive 12 to be introduced into the blast hole.

  Of the both walls 17a and 17b of the hopper 13, one wall 17a extends in the vertical direction, and the angle α of the other wall 17b with respect to the wall 17a is preferably set to an acute angle, more preferably 30 to 60 °. Yes. Therefore, the width of the hopper 13 can be reduced, and the explosive loading device 11 can be downsized. Accordingly, the wall 17a of the hopper 13 of the explosive loading device 11 can be disposed along the frame of the drill jumbo platform 53, and can be easily mounted on the platform 53, and the operator's space in the platform 53 can be reduced. Can be secured.

  Furthermore, the angle β formed by the center line 19 that connects the center between the walls 17a and 17b of the hopper 13 up and down and the center line 20 of the outlet passage 18 is set to 60 to 120 °. For this reason, the medicine-packed explosive 12 can be smoothly and reliably led out one by one from the hopper 13 to the lead-out passage 18.

  In the first embodiment, the feeder 14 is constituted by a rotating drum 21 and is provided with a holding groove 22 having an arc-shaped cross section on the outer peripheral surface thereof, and a medicine-pack explosive expelled from the outlet passage 18 in the holding groove 22 12 is accommodated and rotated to supply the medicine-packed explosive 12 to the pressure feeder 15 one by one. Therefore, the medicine-packed explosives 12 can be reliably led out one by one by the rotation of the rotating drum 21.

  The pressure feeder 15 sends the lubricating liquid from the spray nozzle 44 from the lubricating liquid supply port 43 through the lubricating liquid supply pipe 41 after the medicine-packed explosive 12 in the receiving section 31 is fed to the pressure feeding section 33 by the extruding section 32. At the same time, gas is supplied from the pressure feeding unit 33 to pressure-feed the medicine-packed explosive 12. Therefore, the medicine-packed explosive 12 can be pumped in a stable state by the gas pressure supplied by the pumping unit 33 and the lubricating liquid ejected from the lubricating liquid supply pipe 41.

Moreover, since it comprised so that a lubricating liquid might be ejected only when sending the medicine package explosive 12, it can suppress the usage-amount of a lubricating liquid. In addition, since the ejected water reliably adheres to the periphery of the medicine-packed explosive 12, friction between the inner peripheral surface of the loading hose 28 and the outer peripheral surface of the medicine-packed explosive can be reduced, Generation of static electricity can be prevented.
(Second Embodiment)
Next, a second embodiment in which the explosive loading device of the present invention is embodied will be described in detail. In the second embodiment, parts different from the first embodiment will be mainly described.

  FIG. 5 is a schematic front sectional view showing the explosive loading device 11, and FIG. 6 is a schematic side view showing the explosive loading device 11. As shown in FIGS. 5 and 6, a first push-up passage 61 communicating with the lower end of the outlet passage 18 is provided in an oblique direction (from the lower left to the upper right in FIG. 5), and the inner diameter thereof is a medicine-pack explosive 12. It is formed so as to be slightly larger than the diameter of the medicine pack-shaped explosives 12 sent from the outlet passage 18 one by one. The feeder 14 includes a third air cylinder 62, a second piston 63, and the like, and their axes extend in the same oblique direction as the center line of the first push-up passage 61. The lower end portion of the first push-up passage 61 and the second piston 63 constitute a positioning portion for the medicine package explosive 12. The connecting portion between the wall 17b of the hopper 13 and the outlet passage 18 is an arc portion 18a, so that the pack-shaped explosive 12 is easily led out from the hopper 13 to the outlet passage 18 one by one. Then, by the operation of the third air cylinder 62, one medicine-packed explosive 12 sent from the outlet passage 18 is pushed up along the first push-up passage 61.

  The upper end of the first push-up passage 61 communicates with the upper end of the first drop passage 64 extending in the vertical direction, and the lower end thereof communicates with the through hole 34 of the receiving portion 31 of the pressure feeder 15. The medicine-packed explosive 12 pushed up to the upper end of the first push-up passage 61 is supplied to the receiving portion 31 of the pressure feeder 15 through the first drop passage 64.

  On the other hand, at the rear position of the feeder 14, there is provided a stuffing supply machine 65 for supplying the stuffing. The second push-up passage 66 extends in an oblique direction (from the lower right to the upper left in FIG. 5). The filling material supply unit 65 includes a fourth air cylinder 67, a third piston 68, and the like, and their axes extend in the same oblique direction as the center line of the second push-up passage 66. The filling material supply path 69 is formed in an oblique inverted L shape, and the lower end thereof communicates with the lower end of the second push-up passage 66. Then, by the operation of the fourth air cylinder 67, one medicine-packed explosive 12 sent from the filling material supply path 69 is pushed up along the second pushing-up passage 66. The upper end of the second drop passage that extends in the vertical direction (not shown) is communicated with the upper end of the second push-up passage 66, and the lower end is communicated with the second through hole 70 of the receiving portion 31 of the pressure feeder 15. Then, the medicine-packed explosive 12 pushed up to the upper end along the second push-up passage 66 falls in the second drop passage and is supplied to the receiving portion 31 of the pressure feeder 15. Yes.

  Now, as shown in FIG. 5, the medicine-packed explosives 12 in the hopper 13 are guided one by one to the first push-up passage 61 via the lead-out passage 18, and the leading one is on the second piston 63. Located in. When the third air cylinder 62 is operated in this state, the medicine-packed explosive 12 ascends the first push-up passage 61 and reaches the upper end thereof, from which the second fall passage is dropped and the pressure feeder It is accommodated in the receiving portion 31 from the 15 through holes 34. On the other hand, the contents are sent from the contents supply passage 69 to the second push-up passage 66 and are pushed up to the upper end of the second push-up passage 66 by the operation of the fourth air cylinder 67, and fall down the second drop passage. Then, it is accommodated in the receiving portion 31 from the through hole 34 of the pressure feeder 15. Thereafter, in the same manner as in the first embodiment, the medicine-packed explosive 12 is fed from the pressure feeding unit 33 into the loading hose 28 and loaded into a blast hole (not shown).

  Therefore, according to the explosive loading device 11 of the second embodiment, the medicine-packed explosive 12 can be reliably led out one by one by the operation of the third air cylinder 62, and the contents are also taken from the contents supply machine 65. The fourth air cylinder 67 can reliably supply the air.

It should be noted that the above embodiment can be modified as follows.
-Both walls 17a and 17b of the hopper 13 can also be formed in a symmetrical taper shape so that the width is reduced toward the lower side.

  The width of the outlet passage 18 is wide on the inlet side (hopper 13 side) and narrow on the outlet side (feeder 14 side). It is also possible to supply them one by one.

  In order to arbitrarily set the angle α formed by the walls 17a and 17b of the hopper 13, the wall 17b can be configured to be rotatable with respect to the wall 17a. The outlet passage 18 can also be configured to be rotatable with respect to the hopper 13 so that the angle β formed by the center line 19 of the hopper 13 and the center line 20 of the outlet passage 18 can be arbitrarily set.

A pair of holding grooves 22 of the rotary drum 21 may be provided at positions opposed to each other by 180 degrees, and the half-rotation can be configured to supply the medicine-packed explosives 12 one by one.
Furthermore, the technical idea grasped from the embodiment will be described below.

  The explosive loading device according to claim 6, further comprising a control device that performs rotation of the rotating drum, driving of the cylinder, driving of the lubricating liquid supply unit, and driving of the pressure feeding unit under preset conditions. When configured in this way, the explosive loading device can be easily driven according to preset conditions.

(A) is a schematic plan view which shows the explosive loading apparatus of 1st Embodiment, (b) is a schematic front sectional view which shows an explosive loading apparatus. Sectional drawing which shows a hopper. The schematic side view which shows an explosive loading apparatus. The side view of the state which fractured | ruptured the principal part which shows an explosive loading apparatus. The schematic front sectional view which shows the explosive loading apparatus of 2nd Embodiment. The schematic side view which shows the explosive loading apparatus of 2nd Embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 11 ... Explosive loading apparatus, 12 ... Medicinal explosive, 13 ... Hopper, 14 ... Feeder, 15 ... Pumping machine, 17a, 17b ... Wall, 18 ... Outlet passage, 19 ... Center line, 20 ... Center line, 21 ... Rotating drum, 22 ... holding groove, 23 ... piston, 28 ... loading hose, 30 ... pressure feeder main body, 31 ... receiving part, 32 ... extruding part, 33 ... pressure feeding part, 41 ... lubricating liquid supply pipe as lubricating liquid supply part 44 ... Spray nozzle as nozzle, 61 ... First push-up passage as push-up passage, 62 ... Third air cylinder as cylinder, 63 ... Second piston as piston, 64 ... Second as drop passage 1 Falling passage, α, β ... An angle.

Claims (6)

A hopper that accommodates a columnar medicine-packed explosive with its axis aligned, a lead-out passage that is provided in the lower part of the hopper and leads out the medicine-pack-like explosive in the hopper in one row, and a medicine-pack shape that is led out from the lead-out passage A feeder for supplying the explosives one by one; and a pressure feeder for feeding a medicine-packed explosive connected to the feeder to a loading hose that leads to a blasting hole provided in an object to be blasted The explosive loading device characterized in that both walls facing each other are tapered so that the inner space becomes narrower toward the lower part of the hopper, and the angle formed by both walls is set to an acute angle. The explosive loading device according to claim 1, wherein one of the walls of the hopper extends in a vertical direction and the other wall is inclined at an acute angle with respect to the one wall. The angle formed by the both walls of the hopper is 30 to 60 °, and the angle formed by the center line connecting the center portion between the both walls of the hopper vertically and the center line of the lead-out passage is 60 to 120 °. The explosive loading device according to 2. The feeder is composed of a rotating drum that is driven to rotate, and a holding groove having an arcuate cross section is provided on the outer peripheral surface of the rotating drum. The holding groove contains a medicine-packed explosive led out from the outlet passage and is rotated. The explosive loading device according to any one of claims 1 to 3, wherein the explosive loading explosive is supplied to the pressure feeder one by one. The supply machine includes a cylinder having a reciprocating piston, a positioning unit for stopping each medicine-packed explosive led out from the outlet passage at a position facing the piston, and a medicine-packed explosive obliquely upward with the piston. The explosive loading device according to any one of claims 1 to 3, further comprising: a push-up passage that pushes up and a dropping passage that drops the medicine-pack-like explosive pushed up in the push-up passage and sends it to the pressure feeder. The pressure feeder is provided at a lower position of the feeder, and has a cylindrical pressure feeder main body, an intermediate portion of the pressure feeder main body, a receiving portion for receiving a medicine-packed explosive supplied from the feeder, and the receiving portion. An extruding part which is provided at a rear position and reciprocates by a cylinder and feeds the medicine-packed explosive of the receiving part forward; a lubricating liquid supply part having a lubricating liquid passage provided in the extruding part and a nozzle provided at the front end of the extruding part; , Equipped with a pumping unit provided at the front of the main body of the pumping machine that pumps the medicine-shaped explosive with gas pressure, and after receiving the medicine-packed explosive of the receiving part into the pumping part at the extrusion part, lubrication from the lubricating liquid supply part The lubricating liquid is ejected from the nozzle through the liquid passage, and gas is supplied from the pressure feeding unit to pressure-feed the medicine-packed explosive according to any one of claims 1 to 5. Explosive loading device.

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