AU2012203458A1

AU2012203458A1 - Explosives containing detonating devices

Info

Publication number: AU2012203458A1
Application number: AU2012203458A
Authority: AU
Inventors: Jurgen Hanten
Original assignee: Poly Clip System GmbH and Co KG
Current assignee: Poly Clip System GmbH and Co KG
Priority date: 2011-06-16
Filing date: 2012-06-14
Publication date: 2013-01-10
Anticipated expiration: 2032-06-14
Also published as: RU2012125044A; BR102012014704A2; EP2535277A1; EP2535277B1; CN102863300B; AU2012203458B2; PL2535277T3; BR102012014704B1; US20120318122A1; CN102863300A; RU2532980C2

Abstract

The invention ccetwr:: u puriUingri arid packing device as well as a process for the production of explosives (W) containing detonating devices (S). The portioning and packing device contains a conveyor (10) for the explosive, which exhibits a pump for the generation of a volume flow; a filling pipe (20, 120) cIinecled Lo [he conveyor (10), which is set up to provide a reserve supply of a tubular packing sleeve (V). At the same time, the tubular packing sleeve (V) can be pulled off the filling pipe (20, 120) with the explosive ejected through the filling pipe (20, 120). A closing device located downstream of the filling pipe (20, 120) is set up to constrict the filled packing sleeve (V) locally to a hose plait (Z) during the filling process and close around the hose plait (Z) with at least one means of closure (Cl, C2). The filling pipe (20, 120) further exhibits a means of introduction (40, 140), which is set up to introduce a detonating device (S) into the explosive (W). C)C

Description

Pool Secilon 29 Regulaton 3.2(2) AUSTRALIA Patents Act 1990 COMPLETE SPECIFICATION STANDARD PATENT Application Number: Lodged: Invention Title: Explosives containing detonating devices The following statement !a a full description of this invention, including the best method of performing it known to us: P11 1ABAU/010 1 Explosives containing detonating devices The invention concerns a portioning arid packing device for the production of 5 explosives containing detonating devices as well as a process for this corresponding to the generic terms of claims 1 and 17. In particular, the invention concerns a portioning and packing device for the production of 5 explosives containing detonating devices, which contains: a conveyor for the explosive, which exhibits a pump for generation of a volume flow of explosive, a filling pipe 10 connected to the conveyor, which is to provide a reserve supply of a tubular packing sleeve in such way that this can be pulled off the filling pipe with the explosive ejected through the filling pipe tube and a closing device located downstream of the filling pipe, which is set up to construct the filled packing sleeve during the filling process locally to a hose braid and close it around the 15 hose braid with at least one means of closure. Furthermore, the invention concerns, in particular, a process for the production of explosives containing detonating devices with the steps: Generation of a volume flow of explosive by rmreais of a conveyor exhibiting a pump, provision of a reserve supply of a tubular packing sleeve on a filling pipe connected to the conveyor, ejection of the 20 explosive volume flow through the filling pipe into the tubular packing sleeve and closure of the tubular packing sleeve by a closing device located downstream of the filling pipe through constriction of the tubular packing envelope and subsequent setting of at least one means of closure. 25 For the sausage-shaped packing of ductile filling material present in fluid, paste like or granular form, such as for example sausage meat, sealant, explosive etc., it is known from practice that the filling material is supplied from a filling machine via a filling pipe to a clip machine. In the clip machine, the filling material is filled into a tubular packing sleeve material closed on one side by a first clip and the 30 tubular packing sleeve material is closed by setting of a second clip. The closing tools comprise a stamp and a die respectively as a pair, between which the clip is shaped during closure until attainment of the minimum spacing of the closing tools. After closure, the closing tools are moved back into their initial or opening 2 position. The resultant sausage-shaped product is [hien separated Firom lte resolve supply or ihe ioainii Hoask1iiW oIc'v'v uiatoiial miid tlih [ii lid piuduul is discharged from the clip machine. The tubular packing sleeve material prefabricated before the filling process as a ruffled hose can consequently be 5 pushed from the orifice side onto the filling pipe or it can be formed from a flat material, which is then bent Uruunid the filling pipe during the filling process and then jointed to a hose at the longitudinal edges touching one another, for example via hot sealing. 10 Such a device and a process implemented with this device are typically known from the German unexamined patent application DE 10 2005 044 877 Al. There sausage meat is filled into tubular packing sleeves for the production of sausage products. However, it is also possible to fill viscous or granular explosive into tubular packing sleeve on the above device. 15 Furthermore, the German unexamined patent application DE 23 09 339 also reveals a device and a process for the production of so-called slurry explosives in a rod shape. A flat material is also folded around a filling pipe to form a hose here. The longitudinal edges touching one another are joined using an adhesive 20 tape. The hose filled with fluid or granular explosive is closed with metal clips. Such explosive packages (hereinafter explosives), produced for example by means of the above devices and processes, are typically used in rock detonations, where they are placed in correspondingly prepared drill holes. 25 However, these explosives are usually difficult to ignite for reasons of safety. Aids, such as ignition capsules or detonating cords (hereinafter detonating devices), are normally required for this. These are mostly attached to the explosive on site or introduced into the latter. 30 Above all in the case of paste-like or fluid explosives, so-called slurry explosives, but also in the case of very fine-grained granular explosives, which are packed into tubular sleeves, there is a risk that the packing sleeve will become damaged during insertion of an ignition capsule or a detonating cord and that part of the 3 explosive contained therein will escape. As the aimiuit of explosive is usually calculated very accur Ltely, Ite result ul the detonalion can be adversely affected by this. Furthermore, the escaped explosive also poses a hazard. 5 On the basis of this, it is the task of the present invention to provide a device and a process for the production of explosives, which overcome the above disadvantages and prevent damage to the explosives, particularly when attaching the detonating devices. 10 The above task is solved in respect to the device by the characteristics of claim 1. Claims 2 to 16 following on from this contain advantageous embodiments of the device corresponding to the invention. In particular, a portioning and packing device for the production of explosives 15 containing detonating devices with a conveyor for the explosive is proposed, which contains a pump for the generation of a volume flow. The device corresponding to the invention also exhibits a filling pipe connected to the conveyor, which is to provide a reserve supply of a tubular packing sleeve in such way that this can be pulled off the filling pipe with the explosive ejected through 20 the filling pipe tube and a closing device located downstream of the filling pipe, which is set up to construct the filled packing sleeve during the filling process locally to a hose braid and close it around the hose braid with at least one means of closure. 25 In an advantageous embodiment, the filling pipe exhibits a means of insertion, which is devised so as to introduce a detonating device into the explosive. Damage to the packing sleeve by subsequent insertion of a detonating device can therefore be avoided. 30 If the means of introduction is a supply pipe routed coaxially in the filling pipe, at least in sections, with a first orifice opening located outside the filling pipe, which is muted from the inlet point into the filling pipe in the direction of the filling pipe 4 orifice, the detonating d6vica c.An be plaotmd iii u ulie vvliei Fllu i fii LIi tubular packing. In order to keep the flow resistance of the supply pipe as low as possible, it is 5 further advantageous if the diameter of the supply pipe routed coaxially in the filling pipe, at least in sections, is smaller than that of the diameter of the filling pipe, preferably by at least a factor of 3. If the supply pipe enters the filling pipe in an area between the conveyor and the 10 filling pipe orifice, the filling pipe can be connected to any suitable conveyor. In an udvarigeuus ermbodimler1t, the section of the supply pipe progressing coaxially in the filling pipe ends within the filling pipe, with the result that the detonating device emerging in the filling pipe is carried along with the explosive 15 flowing into the tubular packing. In a further advantageous embodiment, the section of the supply pipe progressing coaxially in the filling pipe protrudes out from the orifice of the filling pipe. This enables an easy introduction of the detonating agent as well as an inspection of 20 the detonating device, at least at the beginning of the filling process. It is furthermore ensured that the detonating device extends at least approximately through the entire length of the explosive. If the supply pipe exhibits at least one direction change in the area of the inlet 25 point into the filling pipe, the device corresponding to the invention is designed to the effect that a reserve supply of detonating device can be supplied from approximately every position. In a further advantageous embodiment, the filling pipe exhibits direction change 30 whereby the direction change can be reduced or omitted in the supply pipe. It is furthermore advantageous if the filling pipe exhibits a first filling pipe section and a second filling pipe section axis-parallel to the first filling pipe section as well 5 as a third filling pipe section, which joins the first and second filling pipe sections to one another anid vvluZ- uq b aq i i, 'to t u ioho aLu r uf LI, i fizt cid second filling pipe section. The supply pipe can enter into the third filling pipe section in such way through this that it progresses coaxially to the first filling pipe 5 section. This arrangement means a diretiui uliunge ii the supply pipe fur the detonating device is no longer necessary and the detonating device is spared, as an additional load is avoided through curvature. A supply pipe as a means of introduction is then particularly suitable if the 10 detonating device is a detonating cord, of which there is advantageously a reserve supply in the area of the filling pipe. If the detonating device can be fixed by the measures of closure in the sausage shaped packing, it is further ensured that this is also extracted from the filling pipe 15 by pulling uFf the packiig sleeve during filling arid pervades lhe eiiiie explosive. Alternatively, the reserve supply can also have a drive and so realize the explosive feed. In a particularly advantageous embodiment, the detonating device in the area of 20 the fixing is accessible from outside. This can therefore be contacted from outside without opening the packing sleeve, thereby preventing damage to it. In respect to the process for the production of explosives containing detonating devices, the above task is solved by the characteristics of claim 17. Claims 18 to 25 21 following on from this contain advantageous embodiments of the process corresponding to the invention. It is to be noted that this process realizes the same advantages as the above advantages of the portioning and packing device corresponding to the invention. 30 Embodiment examples of the invention are described below with reference to the enclosed drawing figures. The terms "top", "bottom", left" and "right" used when 6 dageribing the embodinont oxamplo refor Lu thu druwing [iguruu in uri alignment with normally legible ieferenue signs arid figure designations, in which: Fig. 1 5 - Schematically shows a side view of a first embodiment form of the portioning and packing device corresponding to the invention; and 10 Fig. 2 shows a further embodiment form of the portioning and packing device corresponding to the invention. Fig. 1 shows a first embodiment example of a portioning and packing device 15 corresponding to the invention. This exhibits a conveyor 10 for the explosive to be packed. The conveyor 10 is preferably a pump adapted to the type and consistency of the explosive to be filled, which pumps the explosive in the filling ejection direction F, i.e. in Fig. I and 2 to the right. In filling ejection direction F, a filling pipe 20 exhibiting a circular cross section is connected to the conveyor 10. 20 The connection of the filling pipe 20 to the conveyor 10, not described in more detail, can typically be realized via a union nut. Further in filling ejection direction F directly behind the orifice opening of the filling pipe 20, a schematic clip machine is located, of which only the displacer unit 30 is 25 shown. On the orifice-side end of the filling pipe 20 located downstream of the conveyor 10, a reserve supply of tubular packing sleeve V is located and closed directly before the orifice opening of the filling pipe 20 by a first closing clip 01. Further in 30 filling ejection direction F downstream of this closing clip C1, a second closing clip C2 is located on the plait 7 of the tubular packing sleeve V created by the displacer unit 30 and free of filling material. This closes the end of the previously produced explosive W.

7 A supply pipe 40 is iiuulted un lte filling pipe 20 between [tie conveyor 10 and the reserve supply of tubular packing sleeve V located on the filling pipe 29. The supply pipe 40 has a circular cross section. Its diameter is preferably less than 5 that of the filling pipe 20 by a factor of 3. In the embodiment example shown, the supply pipe is angled by approx. 90*. It exhibits a first limb 42, which is aligned within the filling pipe 20 coaxially to this, preferably along ils uuirte luniyiudiial axi, iiut shuwn in miure detail. A seouid 10 limb 44 of the supply pipe 40 is aligned vertically to the centre longitudinal axis of the filling pipe 20. Its centre longitudinal axis intersects the centre longitudinal axis of the filling pipe 20. The supply pipe 40 is further aligned in such way that the orifice opening 46 of the first limb 42 points in filling ejection direction F. A suitable seal, for example a weld or adhesive seam, is provided at the passage 15 point D of the supply point 40 through the walls of the filling pipe 20. The supply pipe 40 can be made of the same material as the filling pipe 20. However, it can also be made of another material, as long as the secure and tight connection to the filling pipe 20 can be ensured. 20 A reserve supply of detonating devices, here detonating cord S, is provided on a supply roll R above the filling pipe 20 in the area of the supply pipe 40. The detonating cord S extracted from the roll R is routed through the orifice opening 48 of the second limb 44 into the supply lppe 40 and leaves this through the orifice opening 46 located in the filling pipe 20 of the first limb 42 of the supply 25 pipe 40. The detonating cord thus coaxial to the filling pipe 20 and routed in this extends through the plait Z free of filling material into the sausage-shaped explosive W previously completed. At the same time, it is clamped in the closing clips C1, C2 and thus retained in the area of the plait Z free of filling material. 30 The embodiment shown in Fig. 2 of the portioning and packing device corresponding to the invention differs from that described in Fig. 1 in the form of the filling pipe 120 and the supply pipe 140. The filling pipe 120 is connected to a 8 cmnvoyer 10 not hehAwn, lilk thI fillin pip. 20 Uorroupordirng to Pi.1, by mea or vvbi ie, = Aplouive [u b'e Filled is Iuiveyed LlIuuyli Ue fillir y pipe 120. The filling pipe 120 exhibits a first section 122, a second section 124 as well as a 5 third section 126. Sections 122 and 124 are located axis-parallel with a distance to one another. The third filling pipe section 126 joins the first and second sections 122, 124 to one another. Its centre longitudinal axis intersects the centre longitudinal axis of the first and 10 second section 122, 124. This arrangement of the filling pipe section 122, 124, 126 gives the filling pipe 120 an S-shaped or Z-shaped stage. However, the corresponding angle of approx. 90" shown in Fig. 2 can also be greater than 90*, corresponding to the consistency of the explosive to be filled and in order to change its rheological properties. 15 The supply pipe 140 used in the embodiment of the portioning and packing device corresponding to the invention according to the Fig. 2 has a diameter comparable with the supply pipe 40 of Fig. 1. However, it is not angular but instead extends linearly and coaxially to the centre longitudinal axis of the first 20 filling pipe section 122. Its axial length is greater than that of the first filling pipe section 122. The supply pipe 140 is routed through the first filling pipe section 122. It enters into the filling pipe 120 in the connection area of the first filling pipe section 122 with the third filling pipe section 126 and extends as far as the area between the orifice of the filling pipe 120 and the clip machine. 25 In filling ejection direction F directly behind the orifice opening of the filling pipe 120, a clip machine is also located, whose displacer unit 30 is shown. Also on the orifice-side end of the filling pipe 120, a reserve supply of tubular 30 packing sleeve V is located and closed directly before the orifice opening of the filling pipe 120 by a first closing clip C1. Further in filling ejection direction F downslream or this closing clip C1, a second closing clip 02 is located on the plait 9 Z of tho tubulir packing tluvU V uruulud by the diupluour unit 30 and free of filling material. This closes the end of the previously produced explosive S. 5- The reserve supply of detonating device S, which is formed by a detonating cord S, is located in this embodiment example below the filling pipe in an area between the S-shaped and Z-shaped stage of the filling pipe 120 and the conveyor nut shuwi, with the resuL that [the detonating cord 3 pulled off the supply roll R can be outed without additional deflection into the orifice 148 of the 10 supply pipe 140. This embodiment is therefore recommended for bend-sensitive detonating cords S. The detonating cord S then progresses linearly and coaxially to the first filling pipe section 122 through the supply pipe 140 and passes out through this into 15 orifice 146 facing the filling ejection direction between the orifice of the filling pipe 120 and the clip machine, directly in the area of the first clip C1. The detonating cord S progresses through the plait free of filling material and is, as already explained in conjunction with Fig. 1, clamped in the closing clips C1, C2 and held by these. 20 The production of the explosives containing detonating devices corresponding to the invention is explained in detail below. The conveyor 10 is used to transport the explosive to be filled through the filling pipe 20, 120. At the orifice opening facing away from the conveyor, the explosive emerges out from the filling pipe 20, 25 120 and is thus filled into a section of the tubular packing sleeve V closed on one side by a closing clip C1, As a result of the filling pressure, a further tubular packing sleeve V is extracted from the reserve supply on the filling pipe 20, 120. If the desired amount of explosive is filled into the section of the tubular packing sleeve closed on one side, the further supply of explosive is interrupted. The 30 displacer unit 30 of the clip machine constricts the filled packing sleeve V directly before the filling pipe orifice. A plait Z free of filling material is formed by spreading the displacer unit 30. A second closing clip C2 is placed on this plait Z, which closes the filled section of the tubular packing sleeve closed on one side 10 and thia couplelvo thi auoaw-bad expluoivr, W. AL tLi ;aimii uiiii v subslquently fn thi, q new first losing clip C1 is placed on the plait Z free of filling material, which fomi (liU iiiitial Lip fu thu iext susdge-sblhped uxplubive 5 W. The explosive W that has just been completed is then separated from the new initial tip using a suitable separating device and discharged out of the packing device. Before beginning the filling process, detonating cord S is first routed outwards via 10 the supply pipe 40, 140 through the orifice of the filling pipe 20, 120 and clamped in the first closing clip C1. During transport of the explosive through the filling pipe 20, 120, detonating cord S is conveyed together with the explosive through the filling pipe 20, 120 into the 15 tubular packing sleeve V. Upon closure of the packing sleeve section V that has just been filled, the detonating cord S is then automatically clamped in the first and second closing clip C1, C2. The detonating cord S clamped in the first closing clip C1 is thereby extracted 20 from the supply roll R at the same speed as the packing sleeve V from its reserve supply. In this way, it is ensured that the detonating cord progresses linearly through the explosive W without kinks. However, a suitable braking device can also be provided at the supply roll R of 25 the detonating cord S, in order to prevent an uncontrolled unwinding of the detonating cord S. In order to be able to contact the detonating cord S at the completed explosive W easily and safely, it is possible to increase the plait Z free of filling material to the 30 required length by a greater spreading of the displacer unit 30. As the detonating device of the explosive W is usually only to be connected on one side, it can furthermore be planned to not separate the plait free of filling material centrally 11 between the clips C1, C2, but instead closer Lu uii uf Lhe clips su that a shurler and a longer section result. 5 1in the tniIbudiiniul exIiIIpltis slui, a iutsivt supply ut tubulai paukiiy tsIeevte V is pulled onto the orifice-side section of the filling pipe 20, 120. Of course, it is possible to form a tubular packing sleeve from a flat material, which is bent around the filling pipe 20, 120 during the filling process and then connected to the longitudinal edges touching one another to form a hose. 10 Furthermore, the reserve supply of detonating devices can have a suitable drive. In this case, this can be fed by the drive in filling ejection direction F, e.g. if the detonating cord S has a sufficient rigidity. 15 If the detonating device S is paste-like or powdery, the drive is formed by a suitable pump. In order to ensure a uniform supply of detonating device, the drive of the detonating device reserve supply can be synchronized with the conveying 20 direction for the explosive in a suitable way. 25

Claims

1. Puriiuning anid packing device for the production of explosives (W) containing detonating devices (S) with a conveyor (10) for the explosive, which exhibits a pump for generation of a volume flow; A filling pipe (20, 120) connected to the conveyor (10), which is set up in such way that a reserve supply of a tubular packing sleeve (V) is provided so that this can be pulled off the filling pipe (20, 120) with the explosive ejected through the filling pipe (20, 120); a closing device located downstream of the filling pipe (20, 120), which is set up in such way to constrict the filled packing sleeve (V) locally to a hose plait (Z) during the filling process and close around the hose plait (Z) with at least one means of closure (C1, C2); characterized by the fact that the filling pipe (20, 120) exhibits a means of introduction (40, 140), which is set up in such way to introduce a detonating device (S) into the explosive (W).

2. Portioning and packing device according to claim 1, characterized by the fact that the means of introduction (40, 140) is a supply pipe (40) routed coaxially in the filling pipe (20, 120), at least in sections, with an initial orifice opening (48, 148) located outside the filling pipe (20).

3. Portioning and packing device according to claim 2, characterized by the fact that the diameter of the supply pipe (40, 140) routed coaxially in the supply pipe (20, 120), at least in sections, is smaller than the diameter of the filling pipe (20, 120) preferably by at least a factor of 3. 13

4. Pantritiinhvand packing device acctordii i L uie uf ului I 2 u id 3, characterized by the fact that the supply pipe (40, 140) enters into the filling pipe (20. 120) in an area hetween thM rinnveynr (10) and the nrifir. nf the filling pipe (20, 120).

5. Portioning and packing device according to one of claims 2 to 4, characterized by the fact that the section of the supply pipe (40, 140) routed coaxially in the filling pipe (20, 120) progresses from the inlet point (D) into the filling pipe (20, 120) in the direction of the filling pipe orifice.

6. Portioning and packing device according to one of claims 2 to 5, characterized by the fact that the section of the supply pipe (40) routed coaxially in the filling pipe (20) ends within the filling pipe (20).

7. Portioning and packing device according to one of claims 2 to 5, characterized by the fact that the section of the supply pipe (140) muted uaxially in the filling pipe (120) prUtrudes uut frun the urifiue Uf the filling pipe (120).

8. Portioning and packing device according to one of claims 2 to 5, characterized by the fact that the supply pipe (40) in the area of the inlet point (D) into the filling pipe (20) exhibits at least one direction change.

9. Portioning and packing device according to claims 2 to 8, characterized by the fact that the filling pipe (120) exhibits a direction change.

10. Portioning and packing device according to claim 9, characterized by the fact that the filling pipe (120) exhibits a first filling pipe section (122) and a second filling pipe section (124) axis-parallel to the first filling 14 second filling pipo airilili!; (12, 124) In ini rinnnfhnr., nnrid wh3c. centre 6x intersects the centre axes of the first and second filling pipe sections (122, 124).

11. Portioning and packing device according to claims 9 and 10, characterized by the fact that the supply pipe (140) can enter into the third filling pipe section (126) in such way that it progresses coaxially lo the first illing pipe section (122).

12. Portioning and packing device according to one of claims 1 to 11, characterized by the fact that the detonating device is a detonating cord (S).

13. Portioning and packing device according to claim 12, characterized by the fact that a reserve supply of detonating cord (S) is provided in the area of the filling pipe (20, 120).

14. Portioning and packing device according to claims 12 or 13, characterized by the fact that the detonating cord (S) can be fixed in the sausage-shaped packing (W) by the closing device (C1, C2).

15. Portioning and packing device according to claim 14, characterized by the fact that the detonating cord (S) is accessible from outside in the area of the fixing.

16. Portioning and packing device according to claims 12 to 15, characterized by the fact that the detonating cord (S) can be filled into the tubular packing (V) simultaneously with the explosive.

17. Process for the production of explosives containing detonating devices with the steps: 15 - Generation of a volume flow of explosive by means of a conveyor (10) exhibiting a pump (10); Provision of a reserve supply of a tubular packing sleeve (V) on a rilliiiY pipw (20, 120) connected to a conveyor (F); - Ejection of the explosive volume flow through the filling pipe (20, 120) into the tubular packing sleeve (V); - Closure of the tubular packing sleeve (V) by the closing device located downstream of the filling pipe (20, 120) through constriction of the tubular packing sleeve (V) and subsequent setting of at least one means of closure (C1, C2); characterized by the fact that a detonating device is introduced into the explosive by a means of introduction (40, 140) in the filling pipe (20, 120).

18. Portioning and packing device according to claim 17, characterized by the fact that the detonating device is a detonating cord (S).

19. Portioning and packing device according to claim 18, characterized by the fact that the detonating cord (S) is fixed in the sausage shaped packing (W) by the closing device (C1, C2).

20. Portioning and packing device according to claims 18 and 19, characterized by the fact that the detonating cord (S) is filled into the tubular packing (V) simultaneously with the explosive,

21. Portioning and packing device according to claims 18 to 20, characterized by the fact that at least one section of the detonating cord (3) protrudes from the tubular packing (V) on at least one end of this. 1.