EP0256597A1 - Device for removing explosive material from soil - Google Patents

Device for removing explosive material from soil Download PDF

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Publication number
EP0256597A1
EP0256597A1 EP87201502A EP87201502A EP0256597A1 EP 0256597 A1 EP0256597 A1 EP 0256597A1 EP 87201502 A EP87201502 A EP 87201502A EP 87201502 A EP87201502 A EP 87201502A EP 0256597 A1 EP0256597 A1 EP 0256597A1
Authority
EP
European Patent Office
Prior art keywords
collection bin
pipe
soil
water supply
spray
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP87201502A
Other languages
German (de)
French (fr)
Other versions
EP0256597B1 (en
Inventor
Dirk Jan Monshouwer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
D Monshouwer BV
Original Assignee
D Monshouwer BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by D Monshouwer BV filed Critical D Monshouwer BV
Publication of EP0256597A1 publication Critical patent/EP0256597A1/en
Application granted granted Critical
Publication of EP0256597B1 publication Critical patent/EP0256597B1/en
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F7/00—Equipment for conveying or separating excavated material
    • E02F7/06—Delivery chutes or screening plants or mixing plants mounted on dredgers or excavators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H11/00—Defence installations; Defence devices
    • F41H11/12—Means for clearing land minefields; Systems specially adapted for detection of landmines
    • F41H11/16—Self-propelled mine-clearing vehicles; Mine-clearing devices attachable to vehicles

Definitions

  • the present invention relates to a device for remo­ving explosive material such as old ammunition and the like from soil.
  • Such a device is used for removing explosives which have, for example, been in the ground since the last world war.
  • the object of the invention is to produce a device by means of which these explosives can be efficiently separated from the soil, and with which optimum safety for the operating personnel is ensured.
  • the device comprising: - a mobile frame containing an armoured control cab and a collection bin for the soil, said collection bin being provided with a bottom consisting of perforated plates; - disposed above the collection bin, a spray lance which is controllable from the cab and is con­nected to a water supply pipe; - a collection tank which is disposed under the perforated plates of the collection bin, and near the bottom is provided with a discharge pipe in which a discharge pump is accommodated.
  • the soil is emptied into the collection bin of the device by means of a conventional excavator which is armoured against possible explosions.
  • a power­ful jet of water is then directed on the soil with the spray lance, so that sand and mud are taken through the perforated plates to the collection tank situated underneath the collection bin.
  • Larger pieces and possible explosive objects remain behind in the collection bin and can be removed from it. Explosive objects can be recognized as such and rendered harmless.
  • the personnel are in the armoured cab of the machine and run practically no risk in the process, while still being able to have a good view of the work.
  • a spray pipe which is connected by means of a valve to the water supply pipe of the spray lance. This spray pipe is for flushing the grid and the collection bin clean.
  • one or more spray nozzles are disposed in the collec­tion tank, and are connected to the water supply pipe of the spray lance. These spray nozzles are for the purpose of maintaining water circulation when the spray lance and the spray pipe are not in operation. This prevents the discharge pump accommodated in the discharge pipe from running dry.
  • the spray nozzles are preferably connected to the water supply pipe by means of an excess pressure valve.
  • the walls of the collection bin are preferably clad on the inside with wood, so that if an explo­sion takes place, ricocheting of shell splinters and the like against the walls is avoided.
  • the wood also provides effective protection for the walls. Since the perforated plates forming the bottom of the collection bin are detachable, they can easily be replaced if damaged by any explosion.
  • the device according to the invention comprises a mobile frame which is provided with caterpillar tracks l, a control cab 2, and a collection bin 3.
  • the cab 2 is provided with panels 4 of armour-plated glass, and is designed in such a way that opera­ting personnel in it are virtually fully protected against a possible explosion.
  • the collection bin 3 is rectangular in top view, with upright walls 5, which are clad with wood on the inside, preferably with deal about 2.5 cm thick.
  • the wood cladding provides effective protection of the upright walls, on the one hand, while the ricocheting of shell splinters against the walls is avoided, on the other.
  • the bottom of the collection bin 3 consists of a grid 6, which is formed by a number of perforated plates which are disposed detachably and can thus easily be replaced in the event of damage.
  • Under the collec­tion bin 3 is a collection tank 7, which is trough-­shaped with downward-sloping side walls.
  • a discharge pipe 8 Near the bottom of the collection tank 7 is a discharge pipe 8, in which a discharge pump is accommodated, suitable for pumping a water and soil mixture, and driven by a hydraulic motor l0.
  • the discharge pipe 8 extends to the rear side of the device and a discharge pipe (not shown) can be connected to it. If the water and soil mixture has to be trans­ported over a distance of more than l km, extra pumps of the same type as pump 9 will have to be disposed in the discharge pipe.
  • the device is also provided with a water supply pipe ll which extends forwards from the rear side thereof and divides near the front of the cab 2 into a pipe l2 which leads to a spray lance l3, disposed above the collection bin 3, and an essential­ly through pipe l4.
  • the spray lance l3, which can be controlled from the cab, is of a known type and need not be described in detail here.
  • Connec­ted to the pipe l2 is a branch pipe l5, which ex­tends along the inside of the walls 5 of the collec­tion bin 3 and is provided at regular intervals with openings.
  • the pipe l5 thus forms a spray pipe for flushing away the material through the grid 6.
  • the through pipe l4 leads to a spray nozzle l6, which is provided inside the collection tank 7 under the grid 6, and the object of which will be clear in the description of the working of the device.
  • a spray nozzle l6 Disposed in the pipes l2, l5 and l4 are valves l7, l8 and l9 respectively.
  • Connected to the pipe l2 is another pipe 20 for feeding a screen washer for the windscreen of the cab.
  • the vehicle is driven by a diesel engine 2l, which also drives the hydraulic motor l0 and hydraulic pumps 22 for placing the water supplied by the pipe ll under pressure.
  • the device according to the invention works as follows:
  • Ground in which possibly explosive objects could be present is excavated using a conventional ex­cavator, which is provided with suitable safety facilities, and is emptied into the collection bin 3.
  • a conventional ex­cavator which is provided with suitable safety facilities, and is emptied into the collection bin 3.
  • a powerful jet of water is directed onto the soil in the bin 3, so that sand and mud and other small particles are flushed away through the grid 6 to the collec­tion tank 7.
  • the large parts and possibly explo­sive objects remain sprayed clean on the grid 6. Any explosives can be recognized as such and rende­red harmless.
  • the collection bin 3 is then emptied, and a new load of soil is emptied into the collec­tion bin 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

A device for removing explosive material such as old ammunition and the like from soil. Said device comprises a mobile frame having an armoured control cab (2) and a collection bin (3) for the soil, said collection bin being provided with a bottom consisting of perforated plates (6). Disposed above the collec­tion bin, is a spray lance (l3) which is controllable from the cab and is connected with a water supply pipe (ll, l2). Under the perforated plates (6) and near the bottom of the bin a discharge pipe (8) is arranged in which a discharge pump is accommodated for discharging the mixture of soil and water. The explosive objects remain in the collection bin and can be recognized as such and rendered harmless.

Description

  • The present invention relates to a device for remo­ving explosive material such as old ammunition and the like from soil.
  • Such a device is used for removing explosives which have, for example, been in the ground since the last world war.
  • The object of the invention is to produce a device by means of which these explosives can be efficiently separated from the soil, and with which optimum safety for the operating personnel is ensured.
  • These objects are achieved according to the inven­tion through the device comprising:

    - a mobile frame containing an armoured control cab and a collection bin for the soil, said collection bin being provided with a bottom consisting of perforated plates;
    - disposed above the collection bin, a spray lance which is controllable from the cab and is con­nected to a water supply pipe;
    - a collection tank which is disposed under the perforated plates of the collection bin, and near the bottom is provided with a discharge pipe in which a discharge pump is accommodated.
  • The soil is emptied into the collection bin of the device by means of a conventional excavator which is armoured against possible explosions. A power­ful jet of water is then directed on the soil with the spray lance, so that sand and mud are taken through the perforated plates to the collection tank situated underneath the collection bin. Larger pieces and possible explosive objects remain behind in the collection bin and can be removed from it. Explosive objects can be recognized as such and rendered harmless. During the flushing away of the soil, the personnel are in the armoured cab of the machine and run practically no risk in the process, while still being able to have a good view of the work.
  • It is preferable to have disposed along the inside of the walls of the collection bin a spray pipe, which is connected by means of a valve to the water supply pipe of the spray lance. This spray pipe is for flushing the grid and the collection bin clean.
  • In a prefereed embodiment of the invention, one or more spray nozzles are disposed in the collec­tion tank, and are connected to the water supply pipe of the spray lance. These spray nozzles are for the purpose of maintaining water circulation when the spray lance and the spray pipe are not in operation. This prevents the discharge pump accommodated in the discharge pipe from running dry.
  • The spray nozzles are preferably connected to the water supply pipe by means of an excess pressure valve.
  • When the spray lance and the spray pipe are not in operation, the pressure in the water supply pipe will increase, and this rise in pressure cau­ses the valve to the spray nozzles to open, so that a water supply to the discharge pump is auto­matically ensured.
  • The walls of the collection bin are preferably clad on the inside with wood, so that if an explo­sion takes place, ricocheting of shell splinters and the like against the walls is avoided. The wood also provides effective protection for the walls. Since the perforated plates forming the bottom of the collection bin are detachable, they can easily be replaced if damaged by any explosion.
  • The invention is explained with reference to the appended drawing, in which:
    • Fig. l shows a schematic cross section of the device according to the invention; and
    • Fig. 2 shows a top view of the device of Fig.l.
  • As can be seen in particular from Fig.l, the device according to the invention comprises a mobile frame which is provided with caterpillar tracks l, a control cab 2, and a collection bin 3. The cab 2 is provided with panels 4 of armour-plated glass, and is designed in such a way that opera­ting personnel in it are virtually fully protected against a possible explosion.
  • The collection bin 3 is rectangular in top view, with upright walls 5, which are clad with wood on the inside, preferably with deal about 2.5 cm thick. The wood cladding provides effective protection of the upright walls, on the one hand, while the ricocheting of shell splinters against the walls is avoided, on the other. The bottom of the collection bin 3 consists of a grid 6, which is formed by a number of perforated plates which are disposed detachably and can thus easily be replaced in the event of damage. Under the collec­tion bin 3 is a collection tank 7, which is trough-­shaped with downward-sloping side walls. Near the bottom of the collection tank 7 is a discharge pipe 8, in which a discharge pump is accommodated, suitable for pumping a water and soil mixture, and driven by a hydraulic motor l0. The discharge pipe 8 extends to the rear side of the device and a discharge pipe (not shown) can be connected to it. If the water and soil mixture has to be trans­ported over a distance of more than l km, extra pumps of the same type as pump 9 will have to be disposed in the discharge pipe.
  • The device is also provided with a water supply pipe ll which extends forwards from the rear side thereof and divides near the front of the cab 2 into a pipe l2 which leads to a spray lance l3, disposed above the collection bin 3, and an essential­ly through pipe l4. The spray lance l3, which can be controlled from the cab, is of a known type and need not be described in detail here. Connec­ted to the pipe l2 is a branch pipe l5, which ex­tends along the inside of the walls 5 of the collec­tion bin 3 and is provided at regular intervals with openings. The pipe l5 thus forms a spray pipe for flushing away the material through the grid 6.
  • The through pipe l4 leads to a spray nozzle l6, which is provided inside the collection tank 7 under the grid 6, and the object of which will be clear in the description of the working of the device. Disposed in the pipes l2, l5 and l4 are valves l7, l8 and l9 respectively. Connected to the pipe l2 is another pipe 20 for feeding a screen washer for the windscreen of the cab.
  • The vehicle is driven by a diesel engine 2l, which also drives the hydraulic motor l0 and hydraulic pumps 22 for placing the water supplied by the pipe ll under pressure.
  • The device according to the invention works as follows:
  • Ground in which possibly explosive objects could be present is excavated using a conventional ex­cavator, which is provided with suitable safety facilities, and is emptied into the collection bin 3. By means of the spray lance l3, a powerful jet of water is directed onto the soil in the bin 3, so that sand and mud and other small particles are flushed away through the grid 6 to the collec­tion tank 7. The large parts and possibly explo­sive objects remain sprayed clean on the grid 6. Any explosives can be recognized as such and rende­red harmless. The collection bin 3 is then emptied, and a new load of soil is emptied into the collec­tion bin 3. During the examination for explosives left behind on the grid 6 and the removal thereof, the spray lance l3 is stopped by means of the val­ve l7, and the spray pipe l5 by means of the valve l8. This gives rise to the danger that the pump 9 for discharge of the soil and water mixture will run dry, which could lead to damage to it. However, the shutting off of the spray lance l3 and the spray pipe l5 gives rise to an increase in the pressure in the water supply pipe ll. If the valve l9 is designed as an excess pressure valve, this increase in pressure results in the valve l9 opening and water being fed through the spray nozzle l6 into the collection tank 7. In this way the water circulation is maintained when the spray lance l3 and the spray pipe l5 are out of action, and damage to the pump 9 is avoided.
  • It will be clear that the invention is not limited to the embodiment shown and described, but that a number of variants are possible within the in­ventive idea.

Claims (7)

1. A device for removing explosive material such as old ammunition and the like from soil, charac­terized by:
- a mobile frame containing an armoured controle cab (2) and a collection bin (3) for the soil, said collection bin being provided with a bottom consisting of perforated plates (6);
- disposed above the collection bin, a spray lance (l3) which is controllable from the cab and is connected to a water supply pipe (ll, l2);
- a collection tank (7) which is disposed under the perforated plates of the collection bin, and near the bottom is provided with a discharge pipe (8) in which a discharge pump is accommo­dated.
2. A device according to Claim l, characterized in that disposed along the inside of the walls (5) of the collection bin is a spray pipe (l5), which is connected by means of a valve (l8) to the water supply pipe (l2) of the spray lance.
3. A device according to Claim l or 2, characteri­zed in that disposed in the collection tank are one or more spray nozzles (6) which are connected to the water supply pipe (ll) of the spray lance.
4. A device according to Claim 3, characterized in that the spray nozzles are connected to the water supply pipe by means of an excess pressure valve (l9).
5. A device according to one or more of the prece­ding claims, characterized in that the walls (5) of the collection bin are clad with wood on the inside.
6. A device according to one or more of the prece­ding claims, characterized in that the perforated plates (6) forming the bottom of the collection bin are detachable.
7. A device according to one or more of the prece­ding claims, characterized in that the armoured cab (2) is provided with a screen washer, which is con­nected to the water supply pipe (l2) of the spray lance by a pipe (20).
EP19870201502 1986-08-08 1987-08-05 Device for removing explosive material from soil Expired EP0256597B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8602040 1986-08-08
NL8602040A NL8602040A (en) 1986-08-08 1986-08-08 DEVICE FOR REMOVING EXPLOSIVE MATERIAL.

Publications (2)

Publication Number Publication Date
EP0256597A1 true EP0256597A1 (en) 1988-02-24
EP0256597B1 EP0256597B1 (en) 1989-12-13

Family

ID=19848390

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870201502 Expired EP0256597B1 (en) 1986-08-08 1987-08-05 Device for removing explosive material from soil

Country Status (3)

Country Link
EP (1) EP0256597B1 (en)
DE (1) DE3761173D1 (en)
NL (1) NL8602040A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010111803A1 (en) * 2009-03-31 2010-10-07 Carlos Humberto Sebastian Lagos Mendez Method and system for safely deactivating landmines

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE604623C (en) * 1928-08-04 1934-10-24 Bauvereinigung G M B H Process for preparing the dredged material to a pumpable mixture on a bucket-chain floating excavator
US2727623A (en) * 1952-08-20 1955-12-20 Yuba Cons Gold Fields Material distributing system for mining dredges
US3395798A (en) * 1968-02-20 1968-08-06 Walter A. Erickson Materials separating loader bucket
US3813125A (en) * 1972-11-22 1974-05-28 Marcona Corp Method and apparatus for continuously excavating particulate material and converting it to slurry
DE3335464A1 (en) * 1983-09-30 1985-04-11 Krauss-Maffei AG, 8000 München Mine clearance vehicle
EP0183915A1 (en) * 1984-11-10 1986-06-11 Ahlmann-Maschinenbau GmbH Device for removing scattered land mines

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE604623C (en) * 1928-08-04 1934-10-24 Bauvereinigung G M B H Process for preparing the dredged material to a pumpable mixture on a bucket-chain floating excavator
US2727623A (en) * 1952-08-20 1955-12-20 Yuba Cons Gold Fields Material distributing system for mining dredges
US3395798A (en) * 1968-02-20 1968-08-06 Walter A. Erickson Materials separating loader bucket
US3813125A (en) * 1972-11-22 1974-05-28 Marcona Corp Method and apparatus for continuously excavating particulate material and converting it to slurry
DE3335464A1 (en) * 1983-09-30 1985-04-11 Krauss-Maffei AG, 8000 München Mine clearance vehicle
EP0183915A1 (en) * 1984-11-10 1986-06-11 Ahlmann-Maschinenbau GmbH Device for removing scattered land mines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010111803A1 (en) * 2009-03-31 2010-10-07 Carlos Humberto Sebastian Lagos Mendez Method and system for safely deactivating landmines

Also Published As

Publication number Publication date
DE3761173D1 (en) 1990-01-18
EP0256597B1 (en) 1989-12-13
NL8602040A (en) 1988-03-01

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