WO2016051042A1

WO2016051042A1 - Tipping dump truck fitted with an on-board system for wetting tracks designed for wetting tracks and abating dust

Info

Publication number: WO2016051042A1
Application number: PCT/FR2015/052459
Authority: WO
Inventors: David GROUT
Original assignee: Natural Tech
Priority date: 2014-09-30
Filing date: 2015-09-15
Publication date: 2016-04-07
Also published as: FR3026376B1; FR3026376A1

Abstract

The invention relates to a tipping dump truck (1) including a tipping bed (2) having a front end turned toward the cab of the truck (1) and an opposite rear end, characterized in that the bed (2) includes an on-board system (3) for wetting tracks, including a casing (4) formed on the bottom of the bed (2), adjacent to the front end of the bed (2), said casing (4) having on at least one of the sides thereof one or more gratings (8) for enabling the passage of water stored in the bed (2), and means for spraying fluid on either side of the truck (1), between the front wheels and the rear wheels thereof, which are in fluid communication, via the inside of the casing, with said grating or gratings (8).

Description

The present invention relates to the field of the slaughter of dust in quarries or mines, and relates more particularly to the field of the slaughter of dust in quarry or mine, and more particularly relates to a dump truck equipped with an on-board track humidification system designed for track humidification and dust removal.

When moving a quarry or mine, dumper or dumper, on quarry or mine tracks, dust particles are suspended in the air, creating clouds of particles, which can be dangerous for the health of quarry or mine personnel and may create risks of accidents due to the poor visibility caused by the movement of equipment on the runways. Thus, it is useful to humidify the tracks of the quarry or mine during the movement of gear to limit these risks.

An existing solution is to fix a reservoir system on the front bumper of the machine so that said system discharges water on the track during the movement of the machine. However, this solution is not compact and the high weight of the tank system can cause damage to the bumper of the machine.

In addition, the French patent FR2730177 discloses a dust removal device on board vehicles of public works or construction sites, said device comprising a water tank connected to nozzles respectively disposed at the wheels of the vehicle. However, a water tank needs to be carried by the vehicle, the water tank being in most cases disposed close to the engine bonnet of the vehicle, which makes this solution non-compact and poses a problem in case leakage from the water tank on the engine hood.

The present invention aims at solving the drawbacks of the prior art by proposing a dump truck equipped with an on-board wetting system designed for the humidification of runways and the removal of dust. the water used for humidifying the tracks being stored in the bottom of the bucket, which makes the solution compact, the stored water can then be projected on the mud flaps of the front wheels of the truck by water cannons, This makes it possible to humidify the tracks when moving the truck, an anti- ^fouling system may also be placed in the bottom of the bucket to prevent clogging of water passages by the material loaded in the truck.

The present invention also makes it possible to adapt this solution of humidification of the tracks to all the career vehicles of the dumper or dump type without heavy modification of the structure and without mechanical inconvenience or visual gene, the additional weight and the loss of volume being negligible. .

The present invention therefore relates to a dump truck comprising a dump body having a front end facing the cab of the truck and an opposite rear end, characterized in that the bucket comprises an on-board humidification system tracks comprising a formwork formed on the bottom of the bucket, in the vicinity of the front end of the bucket, said formwork having on at least one of its faces one or several grids for passing water stored in the bucket, and fluid projection means on each side of the truck, between its front wheels and its rear wheels, in fluid communication from the inside of the formwork with said or said grids.

Thus, the dump truck according to the present invention makes it possible to humidify the tracks when moving the truck on the tracks, preferably empty so as not to damage the transported material, and thus to carry out a dust removal.

In addition, the water used to wet the tracks is stored in the bottom of the bucket, the truck does not need to carry an additional water tank, which makes the compact solution, the additional weight of the formwork and the loss of volume of the bucket being negligible.

The frame of the formwork (side walls and internal walls if necessary) can be welded to the body to resist the impact of the material loaded in the body. Advantageously, the upper cover of the formwork is removable, screwed to the rest of the formwork, to allow maintenance of the interior of the formwork. The upper cover is advantageously inclined from the inner wall of the front part of the bucket to the bottom of the bucket to better withstand the impact of the material loaded in the bucket.

According to a particular characteristic of the invention, the fluid projection means are constituted by holes formed in the bottom of the bucket under the formwork, respectively in the alignment of the right and left wheel trains of the truck, at each end in the direction of the width of the bucket. Thus, a first group of holes is formed on the left side of the truck between the front and rear wheels, and a second group of holes is formed on the right side of the truck between the front and rear wheels. A plurality of holes in each group is preferred but a single surface hole equivalent to the plurality of holes is also within the scope of the invention.

Thus, so-called "dirty" water in the present application, that is to say not coming from the network but coming from reclaimed water, coming for example from the exploitation of the quarry or mine, can to be poured into the bucket when it is empty, then dirty water is stored in the formwork of the bucket and then flows on the tracks through the holes formed in the bottom of the bucket when the vehicle loaded or not moves, the formwork allowing the material loaded in the truck not to obstruct said holes to ensure the proper flow of water.

Simple and rapid filling of the bucket with dirty water can be carried out either when stopping at the primary crusher of the truck, or during the empty return, the quality of the water being not decisive and which can come for example, a quarry water reservoir, a filtration of water or a connection to the water network is thus unnecessary.

In addition, the formwork covering the holes creates a current effect by siphon effect, which improves the distribution of water.

The humidification equipment is mainly mechanical and does not contain a pump, water filtration and nozzle, the majority of the structure being mechanically welded and, preferably, Hardox (registered trade mark) 450 of 30mm. thickness for maximum strength. Water from other sources (network) can of course also be used in the context of the present invention.

It should be noted that the dump truck according to the present invention may be a quarry vehicle, a mining machine, a earthmoving machine or the like.

According to a particular characteristic of the invention, the fluid projection means further comprise, on each side of the truck, at least one water gun arranged under the bucket in fluid communication with the respective holes.

It is thus possible for each group of holes to be one or two water cannons.

Thus, the water cannons can project water from the holes on the tracks (or directly on the wheels of the truck) on which the truck moves, which allows to direct the projection of water and create a shower of water uniform.

Water cannons can be steered.

According to a particular characteristic of the invention, each water gun is controlled by compressor.

There may be a single compressor for all water cannons or a compressor for each water gun.

Thus, the compressor allows to control a ball valve disposed in the water gun, which allows to open or close the water gun or use the water gun in a mode intermittently to achieve a saving of 'water.

According to a particular characteristic of the invention, each compressor is pneumatically controlled by a control device, said device control being piloted by the driver of the truck at the cab of the truck.

Thus, the truck driver can control the water cannons from his cabin through the control device, which allows the truck driver to open the water cannons only when necessary and / or close the guns. when, for example, the truck is stopped.

According to a particular characteristic of the invention, each water gun is directed towards a mud flap of the respective front wheel.

Thus, the water contained in the formwork of the bucket is projected on the mud flaps of the front wheels of the truck by the water cannons, which allows to create two uniform spray of water that flow on the track on which roll the truck, without wetting the front wheels of the truck.

According to a particular characteristic of the invention, each water gun is directed towards a deflector mounted directly on the water gun.

The deflector may preferably be in the form of a carp tail or spoon-shaped.

A plate can also be attached to the water cannon, suspended cantilever opposite the outlet thereof.

According to a particular characteristic of the invention, the on-board humidification system furthermore comprises an anti-clogging system disposed inside the formwork, in order to unclog the one or more gates of the formwork during tilting of the body during unloading.

Thus, the anti-clogging system makes it possible to eject the larger pebbles obstructing the passage of water through the water intake grids during the tilting of water. the bucket, which allows the water to enter the formwork through the water inlet grilles when filling the empty bucket with dirty water.

According to a particular characteristic of the invention, the anti-clogging system comprises counterbalanced combs, said counterbalanced combs being fixed in rotation on a single axis of rotation or on respective axes of rotation, the axis or axes of rotation being arranged in the formwork in the width direction of the bucket, said counterweight combs being adapted to pass through the grid or grids by counterweight effect when tilting the bucket.

Thus, counterweights of counterbalanced combs allow the counterbalanced combs to tilt during the elevation of the bucket and thus to pass through the formwork water inlet grilles to project formwork.

Thus, the largest pebbles placed in front of the water intake grids or stuck in the slots of the inlet grilles are driven when the bucket is in the raised position, which allows water to penetrate well into the formwork during the subsequent filling of the empty bucket with water, once the bucket lowered.

According to one particular characteristic of the invention, the formwork comprises inside said vertical internal walls, said inner walls being orthogonal to the front face of the formwork, the front face of the formwork being the face of the formwork facing the the rear of the bucket, each inner wall having an arch-shaped hole at its lower portion opposite the front face of the formwork so that the water can flow to the holes. Thus, the arch-shaped holes of the inner walls allow to obtain a high water pressure inside the formwork, thus facilitating the flow of water through the holes.

In addition, the internal walls of the formwork make it possible to reinforce the rigidity of the formwork, and can also serve as supports for the counterbalanced combs.

According to a particular characteristic of the invention, the on-board humidification system further comprises a wintering plate that can be removably attached to the front face of the formwork comprising the grids, in order to obstruct the grids during wet periods, during which dust suppression is not necessary.

According to a particular characteristic of the invention, the outlet diameter of the water cannons is adapted according to the need for watering.

Each water gun is advantageously constituted by a barrel body and a nozzle / outlet head fixed to the barrel body in a removable manner, for example by a firefighter connection making it possible to easily change the outlet orifice of the nozzle. exit.

Thus, the outlet diameter of the water cannons can be modified depending on the runway watering requirements, the nominal water passage diameter may be, for example, 80 mm or 100 mm.

The present invention also relates to a method of adaptation on an existing dump truck, characterized in that it consists of:

- Make holes in the bottom of the bucket respectively in the alignment of the right and left wheel trains of the truck, at each end in the direction of the width of the bucket, in order to make holes;

- Install, on each side of the truck, one or two water cannons under the bucket in fluid communication with the respective holes, the outlets of the water cannons being directed respectively to the mud flaps of the front wheels left and right of the truck ;

installing at least one compressor on the truck, the at least one compressor controlling the water cannons; and - installing a formwork on the bottom of the bucket, the formwork covering the holes, the formwork comprising at its front face facing the back of the bucket one or more grids, and the formwork comprising inside that an anti-clogging system.

Thus, the humidification equipment can easily be adapted to an existing dump truck or dump truck without heavy modification of the structure and without mechanical inconvenience or visual gene, the additional weight and loss of volume being negligible.

In addition, the dimensions and inclination of the formwork can be adapted to those of the existing dump truck body.

The bucket can, for example, be a flat-bottomed bucket or a V-bottomed bucket.

The invention also relates to a formwork kit as described above and water cannons as described above, intended to be mounted on a dumper dump truck dump or dumper, said bucket being previously pierced on the front part of its bottom to allow fluid communication between the inside of the formwork and the water cannons mounted under the bucket.

To better illustrate the object of the present invention will be described below, by way of illustration and not limited to, a preferred embodiment, with reference to the accompanying drawings.

On these drawings:

- Figure 1 is a sectional view of a dump truck according to the present invention;

Figure 2 is a perspective view of the dump truck body according to the present invention;

Figure 3 is a perspective view of the interior of the formwork in the dump truck body according to the present invention;

- Figure 4 is a side sectional view of the interior of the formwork in the dump truck body according to the present invention;

Figure 5 is a perspective view of a counterbalance comb of the anti-clogging system of the dump truck according to the present invention when the bucket is tilted; and

- Figure 6 is a side view, at a water gun, of the dump truck body according to the present invention.

Referring to Figure 1, it can be seen that there is shown a dump truck 1 according to a preferred embodiment of the present invention.

The dump truck 1 comprises a bucket 2 adapted to be tilted in a raised position in order to unload a loaded material contained in the bucket 2 towards the rear of the truck 1.

The dump truck 1 may, for example, be a quarry machine, a mining machine or a dumper or dumper type earth-moving machine.

The dump truck 1 comprises an on-board humidification system of tracks 3 so that the truck 1 can humidify the tracks on which it moves in the quarry or the mine, in order to carry out a dust removal.

The onboard track humidification system 3 comprises a formwork 4 disposed on the bottom of the bucket 2 in the width direction of the bucket 2 in the vicinity of the front end of the bucket 2, the formwork 4 being able to receive the water inside thereof through slots (not shown in Figure 1) made at the front of it.

Thus, when the bucket 2 of the truck 1 is empty, dirty water 5, for example from a supply of quarry water, can be discharged into the bucket 2, the dirty water 5 then entering the formwork 4 of the onboard humidification system of tracks 3 via the slots on the front face of the formwork 4.

The bottom of the bucket 2 comprises holes (not shown in FIG. 1) respectively in the alignment of the right and left wheel trains of the truck 1, at each end in the direction of the width of the bucket 2, and at the the interior of the formwork 4, said holes being in fluid communication with the slots of the formwork 4.

The on-board track humidification system 3 further comprises two water cannons 6 arranged under the tipper 2 respectively at the holes at the front left and right wheels of the truck 1.

Each water gun 6 is directed to a mud flap 7 of the respective front wheel of the truck 1.

Thus, the water stored in the formwork 4 can flow to the water cannons 6 through the holes, the water cannons 6 then projecting water on the mudflaps 7 of the front wheels of the truck 1, which makes it possible to create two uniform jets of water which flow on the track on which the truck 1 rolls, without wetting the front wheels of the truck 1, the formwork 4 making it possible not to obstruct the holes in order to ensure the smooth flow of water.

It should be noted that the water cannons 6 could be directed directly to the tracks, without departing from the scope of the present invention.

It should be noted that the onboard air humidification system 3 may not have water cannons 6, the water flowing directly on the tracks through the holes, without departing from the scope of the present invention. .

It should be noted that the on-board humidification system of tracks 3 could comprise, on each side of the truck 1, several water cannons 6, without departing from the scope of the present invention.

The on-line humidification system of tracks 3 is mainly mechanical and does not contain a pump, water filtration and nozzle, the majority of the structure being mechanically welded and, preferably, Hardox (registered mark) 450 of 30mm thick for maximum strength. Referring to Figure 2, it can be seen that there is shown the bucket 2 of the dump truck 1 according to the present invention.

It should be noted that the formwork 4 is shown in dashed lines in FIG. 2 in order to facilitate understanding of the reader.

The formwork 4 has inlet grids 8 at its front face so as to allow the water to flow through the formwork 4 when filling the empty skip 2 with water, the grids of arrival of water 8 consisting of three sets of four slots.

It should be noted that the water intake grilles 8 could consist of any number of slot assemblies, each set of slots having any number of slots, without departing from the scope of the present invention.

Holes 9 are arranged in the bottom of the bucket 2 at the front left and right wheels of the truck 1 inside the formwork 4, the water contained in the formwork 4 can thus flow at the front wheels of the truck 1 through these holes 9, the formwork 4 to create a current effect by siphon effect which improves the distribution of water.

The formwork 4 furthermore has inside said vertical internal walls 10, said internal walls 10 being orthogonal to the front face of the formwork 4, each inner wall 10 having an arch-shaped hole 11 at the level of its lower part opposite to the front face of the formwork 4 so that the water can circulate towards the holes 9.

Thus, the internal walls 10 of the formwork 4 make it possible to create several compartments inside the formwork 4, namely two end compartments having the holes 9 and three central compartments including the inlet grilles 8.

In addition, the arch-shaped holes 11 of the inner walls 10 make it possible to obtain a high water pressure inside the formwork 4, thus facilitating the flow of water through the holes 9.

It should be noted that a wintering plate (not shown in FIG. 2) can be removably attached to the front face of the formwork 4 comprising the water inlet grilles 8 in order to block the grilles of water supply 8 during wet periods during which dust removal is not necessary.

Referring to Figure 3, Figure 4 and Figure 5, it can be seen that there is shown inside the formwork 4 of the dump truck 1 according to the present invention.

The onboard humification system tracks 3 further comprises an anti-clogging system 12 disposed inside the formwork 4 at the central compartments comprising the inlet grilles 8, to unclog the arrival grids water 8 of the formwork 4 during the tilting of the bucket 2 of the truck 1 during an unloading of transported material.

It should be noted that the anti-clogging system 12 was not shown in FIG. 1 and FIG. 2 so as not to overload the drawings.

It should be noted that in Figure 3 and Figure 5, the upper walls of the formwork 4 covering the central compartments of the formwork 4 have not been shown to present the anti-clogging system 12. It should be noted that the dump truck 1 may not have an anti-clogging system 12, without departing from the scope of the present invention.

The anti-clogging system 12 comprises three counterbalanced combs 13 respectively arranged in each of the central compartments of the formwork 4.

It should be noted that the anti-clogging system 12 could comprise any number of counterbalanced combs 13, without departing from the scope of the present invention.

Each counterbalanced comb 13 comprises a counterweight 13a on which a plurality of metal claws 13b are fixed, the counterbalanced comb 13 having as many claws 13b as the central compartment in which it is located has inlet grille slots 8, the claws 13b being sized to be able to pass through the water inlet gate slots 8.

The claws 13b could also be knife-shaped, as shown in dashed lines in Figure 4, without departing from the scope of the present invention.

It should be noted that, in Figure 3, the inlet grilles 8 are drawn in dashed lines so as not to overload the drawing.

Each counterbalanced comb 13 is fixed in rotation on a respective axis of rotation 14, the two ends of the axis of rotation 14 being fixed to two of the inner walls 10 of the formwork 4.

It should be noted that all the counterbalanced combs 13 could be fixed in rotation on a single axis of rotation 14, the internal walls 10 of the formwork 4 in this case including bores in order to insert the single axis of rotation 14, the ends of the single axis of rotation 14 being fixed on the side walls of the body 2, without departing from the scope of the present invention.

As shown in FIG. 5, when the bucket 2 of the truck 1 is tilted back to unload a transported material, the claws 13b of the counterbalanced combs 13 of the anti-clogging system 12 pass through the grids. water supply 8 by counterweight effect, the counterweight 13a allowing the claws 13b to remain vertical regardless of the inclination of the bucket 2, the ends of the claws being placed on the bottom of the bucket 2 when the bucket 2 is at flat and out of the grids 8 when the bucket 2 is in the raised position.

Thus, the largest pebbles arranged in front of the water inlet grids 8 or wedged in the slots of the water inlet grilles 8 are driven off by the claws 13b when the skip 2 is in the raised position, which allows the the water to enter well into the formwork 4 during the subsequent filling of the empty bucket 2 with water.

Referring to Figure 6, it can be seen that there is shown the bucket 2 of the dump truck 1 according to the present invention at a water gun 6.

Each water gun 6 is controlled by compressor 15, the compressor 15 for controlling a ball valve disposed in the water gun 6, which allows to open or close the water gun 6 or to use the gun to water 6 in intermittent mode to save water.

The compressor 15 is preferably arranged near the truck cab 1.

Each compressor 15 of the water cannons 6 is pneumatically controlled by a control device 16, said control device 16 being driven by the driver of truck 1 at the cabin of truck 1.

Thus, the driver of the truck 1 can control the water cannons 6 from his cabin through the control device 16, which allows the driver of the truck 1 to open the water cannons 6 only when necessary and / or to close the water cannons 6 when, for example, the truck 1 is at a standstill.

It should be noted that the exit diameter of the water cannons 6 can be adapted according to the need for watering, the nominal water passage diameter being, for example, 80 mm or 100 mm.

It should be noted that water boxes could also be placed under the bucket 2 between the holes 9 and the water cannons 6, the water boxes storing water from the bucket 2 before the water cannons 6 project this water stored on the mud flaps 7 of the front wheels of the truck 1, without departing from the scope of the present invention.

The invention also relates to a method of adaptation on an existing dump truck 1, characterized in that it consists of:

- Drilling holes in the bottom of the bucket 2 respectively in the alignment of right and left wheel trains of the truck 1 at each end in the width direction of the bucket 2, to make holes 9;

- Install, on each side of the truck 1, one or two water cannons 6 under the bucket 2 in fluid communication with the respective holes 9, the outlets of the water cannons 6 being directed respectively to the mud flaps 7 of the wheels left and right front of truck 1; installing at least one compressor 15 on the truck 1, the at least one compressor 15 controlling the water cannons 6; and

- Install a formwork 4 on the bottom of the bucket 2, the formwork 4 covering the holes 9, the formwork 4 having at its front face one or more grids 8, and the formwork 4 having inside thereof an anti-clogging system 12.

Thus, the onboard track humidification system 3 can easily be adapted to an existing dump truck 1 or dump truck without heavy modification of the structure and without mechanical inconvenience or visual gene, the additional weight and the loss of volume being negligible.

In addition, the dimensions and inclination of the formwork 4 can be adapted to those of the bucket 2 of the existing dump truck 1.

Claims

1 - Dump truck (1) comprising a tipper (2) having a front end facing the cabin of the truck (1) and an opposite rear end, characterized in that the tipper (2) comprises an on-board system humidification of the tracks (3) comprising a formwork (4) formed on the bottom of the skip (2), in the vicinity of the front end of the skip (2), said formwork (4) having on at least one from its faces one or more grids (8) intended to let water stored in the skip (2) pass, and means for projecting fluid on each side of the truck (1), between its front wheels and its rear wheels , in fluid communication through the interior of the formwork with said grid(s) (8).

2 - Dump truck (1) according to claim 1, characterized in that the fluid projection means are constituted by holes (9) formed in the bottom of the dumpster (2) under the formwork (4), respectively in the alignment of the right and left sets of wheels of the truck (1), at each end in the direction of the width of the dumpster (2).

3 - Dump truck (1) according to claim 2, characterized in that the fluid projection means further comprise, on each side of the truck (1), at least one water cannon (6) disposed under the bucket (2) in fluid communication with the respective holes (9).

4 - Dump truck (1) according to claim 3, characterized in that each water cannon (6) is controlled by compressor (15).

5 - Dump truck (1) according to claim 4, characterized in that each compressor (15) is controlled pneumatically by a control device (16), said control device (16) being controlled by the driver of the truck (1) at the level of the cab of the truck (1).

6 - Dump truck (1) according to one of claims 3 to 5, characterized in that each water cannon (6) is directed towards a mud flap (7) of the respective front wheel.

7 - Dump truck (1) according to one of claims 3 to 5, characterized in that each water cannon (6) is directed towards a deflector mounted directly on the water cannon (6).

8 - Dump truck (1) according to one of claims 1 to 7, characterized in that it further comprises an anti-clogging system (12) disposed inside the formwork (4), in order to unclog the grid(s) (8) of the formwork (4) when tilting the skip (2) during unloading.

9 - Dump truck (1) according to claim 8, characterized in that the anti-clogging system

(12) includes counterweight combs

(13), said counterweight combs (13) being fixed in rotation on a single axis of rotation (14) or on respective axes of rotation (14), the axis or axes of rotation

(14) being arranged in the formwork (4) in the width direction of the bucket (2), said counterweight combs (13) being able to pass through the grids (8) by counterweight effect during the tilting of the skip (2).

10 - Dump truck (1) according to one of claims 1 to 9, characterized in that the formwork (4) has walls inside it vertical internal walls (10), said internal walls (10) being orthogonal to the front face of the formwork (4), each internal wall (10) comprising an arch-shaped hole (11) at the level of its lower part opposite the front face of the formwork (4) so that the water can circulate towards the holes (9).

11 - Dump truck (1) according to one of claims 1 to 10, characterized in that it further comprises a winterizing plate which can be removably fixed on the front face of the formwork (4) comprising the grid(s) (8), in order to obstruct the grid(s) (8) during humid periods.

12 - Dump truck (1) according to one of claims 3 to 11, characterized in that the outlet diameter of the water cannons (6) is adapted according to the watering need.

13 - Method of adaptation to an existing dump truck (1), characterized in that it consists of:

- make holes in the bottom of the dumpster (2) respectively in alignment with the right and left wheel sets of the truck (1), at each end in the direction of the width of the dumpster (2), in order to achieve holes (9);

- install, on each side of the truck (1), one or two water cannons (6) under the skip (2) in fluid communication with the respective holes (9), the outlets of the water cannons (6) being directed respectively towards the mud flaps (7) of the left and right front wheels of the truck (1);

- install at least one compressor (15) on the truck (1), the at least one compressor (15) controlling the water cannons (6); And - install a formwork (4) on the bottom of the skip (2), the formwork (4) covering the holes (9), the formwork (4) comprising at its front face one or more grids (8), and the formwork (4) comprising inside it an anti-clogging system

(12).