JP3096288B1 - Mud washing equipment - Google Patents

Abstract

To provide a mud washing apparatus capable of safely and easily maintaining mud adhering to wheel tires of a vehicle that conveys mud and the like by means of a combination of means that does not cause environmental pollution problems. The mud cleaning device supports a traveling road surface on a support frame, and has a large number of cleaning nozzles disposed along the traveling road surface for cleaning mud attached to wheel tires of a vehicle. The collecting device 5 is provided so that the mud washed and washed from the side below T is received by the inclined vibrating sieve device 4, most of the mud is collected at a predetermined position, and the mud is carried out to a predetermined position. .

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mud washing facility for washing mud and the like adhering to tires of a dump truck or the like for conveying mud and the like.

[0002]

2. Description of the Related Art Excavated lots of mud, earth and sand are transported from a site by a so-called dump truck at a site where a residential land is formed, or at an excavation site such as a dam or a tunnel. In addition, since mud is scattered around the tire while the mud remains on the tire, mud removing equipment is now provided near the exit of the site area.

[0003] As an example of such a mud removing facility, a shallow pit (excavation hole) is provided near the exit of the site area, and a running path wider than the tire width of the transport vehicle is provided on the upper surface of the pit on a support frame. 2. Description of the Related Art There is known an apparatus in which a mud removing roller rotatably supported so as to protrude slightly from a traveling road surface is rotatably driven to wipe off mud of vehicle tires contacting the roller.

[0004] The traveling road surface is formed in a mesh shape so that the mud removed from the pit is dropped into the pit.
The surrounding wall is surrounded as a concrete wall, and the mud accumulated at the bottom is scraped and then hardened by adding a polymer coagulant to facilitate subsequent handling. When the solidified mud reaches a predetermined amount, it is carried out of the pit and dumped at a predetermined disposal site.

[0005]

However, in the above-mentioned conventional mud removing equipment, there is a danger that the rollers will protrude and rotate on the traveling road surface, causing the rollers to slip during maintenance work. Even if other people are prohibited from entering the park, there is a risk that children may get injured by the rollers if they enter and play while the equipment is out of service.

[0006] Further, since the removed mud is solidified with a polymer coagulant and disposed of, the solidified mud becomes a kind of industrial waste, and its handling is limited to a landfill. Due to certain restrictions, illegal dumping may cause environmental pollution problems such as environmental pollution.

[0007] The present invention pays attention to the problems of the conventional mud removing equipment, and it is possible to remove mud adhering to wheel tires of a vehicle by a combination of means that is safe, easy to maintain, and does not cause environmental pollution problems. It is an object of the present invention to provide a mud washing facility that performs the following.

[0008]

According to the present invention, as a means for solving the above problems, a traveling road surface having a width sufficient for traveling is provided on a support frame corresponding to the wheels of a transport vehicle for transporting mud, and a wheel tire is provided. A washing nozzle that cleans mud adhering to the vehicle is arranged along the traveling road surface, and the inclined vibrating sieve device that screens the mud that has fallen below the traveling road surface collects most of the mud, and collects the collected mud. Equipped with a recovery device,
The inclined vibrating sieve device is vibrated to a wire mesh equipped with a tube heater.
It shall fitted with machine, recovering the mud by the recovery device to remove water by a nozzle for injecting water by spraying water gradient vibrating screen device from a mixture of mud and water dropped from the tire of the cleaning nozzle It was a mud washing facility constructed as described above.

[0009] The mud washing equipment having such a configuration can wash and collect mud attached to the wheel tires by spraying water. When the vehicle enters and stops on the traveling road surface, water is sprayed from the washing nozzle to the wheel tires. The mud washed off from the tire by this water jet falls along with the water to the inclined vibrating sieve device, and the sieve device sorts the mud larger than the sieve mesh and the mud smaller than the sieve, and the mud smaller than the same as the water. The mud that is larger than the sieve is rolled on the inclined surface by vibrating the sieve device and collected at a predetermined position.

If the size of the sieve is appropriately selected and installed, most of the mud having the property of adhering to the tire can be collected as a size larger than the sieve, and the coarse soil collected at a predetermined position can be collected. The mud is carried out of the device by a recovery device and processed. The mud washed away from the tires only by spraying water does not contain a coagulant or the like as in the past, so when disposing of the mud, dispose of it in an appropriate place without causing environmental pollution problems. be able to.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a main longitudinal sectional view of the mud cleaning equipment of the embodiment. The equipment shown in the figure shows a pit P excavated at a certain depth (approximately 2 m) from the ground surface at a predetermined location,
The peripheral wall is formed by solidifying concrete, and the traveling road surface 2 is supported on a support frame 1 (1a, 1b) provided thereon, and a number of washing nozzles 3 (3a, 3a,
3b), which is provided with an inclined vibrating sieve device 4 for sifting mud falling into a space below the traveling road surface 2 and a collecting device 5 for collecting mud. The cleaning nozzle 3a injects water and 3b injects air.

In this embodiment, a water circulating device 6 and a stirring device 7 for stirring stored water are provided below the inclined vibrating sieve device 4. The water circulation device 6 and the stirring device 7
The main members are provided in the water tank 8.
The water tank 8 is installed at the bottom of the pit P, as shown in the figure, and the front and rear end walls are set low in the front and high in the rear, and the vibrating sieve device 4 is provided over each end wall. Therefore, it is installed in an inclined shape.

As for the support frames 1 (1a, 1b), a plurality (five in the illustrated example) of horizontal support frames 1b using H-shaped steel are placed above the pits P in a direction perpendicular to the running direction, and are placed thereon. It is formed so as to support a plurality of (four in the illustrated example) vertical support frames 1a using square pipes having a hollow cross section. The vertical support frame 1a has both ends closed, and a partition 1x is provided at a predetermined position near one end in the length direction, so that water is sent to a longer portion of the hollow portion and air is sent to a shorter portion of the hollow portion. I have.

The water fed into the long hollow portion is sprayed from a number of washing nozzles 3a to the tire T on the traveling road surface 2, and these washing nozzles 3a
Is arranged to inject water upward from below and horizontally from both sides of the tire. The cleaning nozzle 3a below the traveling road surface 2 is composed of nozzles provided at appropriate intervals in a pipe 3p disposed along the vertical support frame 1a. As shown in FIG. 2, the cleaning nozzle 3a is disposed between the grids of the grid frame forming the traveling road surface 2.

The washing nozzle 3a on the side of the tire is provided with a plurality of vertical pipes 3p having lower ends connected to the hollow portion of the vertical support frame 1a on the outer side, and attached to the vertical support plate 3x. A vertical pipe 3 consisting of nozzles provided in a plurality of stages at intervals and similar inside but low in height
p. As will be described later, the pressurized water fed into the hollow portion of the vertical support frame 1a is supplied to the large number of cleaning nozzles 3a formed and arranged as described above, and is sprayed for cleaning the tire.

A large number of air washing nozzles 3b for jetting compressed air sent into the short hollow portion are also shaped like the water washing nozzle 3a, except that the arrangement section is arranged only in the short hollow portion area. , The arrangement is basically the same. In addition, this short hollow part and the said auxiliary equipment are provided near the front end in the running direction.

As described above, the inclined vibrating sieve device 4 is provided on the front and rear end walls of the water tank 8 in an inclined manner, and includes a tube heater 4b having a built-in electric heating coil between upper and lower flat wire meshes 4a, 4a. Are provided in parallel with each other, and a vibrator 4c is provided in which the entire wire mesh is provided on the upper end side. 4d is a power supply box. At the front end of the wire mesh 4a, 4a of this apparatus, a collecting device 5 for receiving sieve-sorted mud is provided.
Most of the mud selected by the wire mesh 4a, 4a is a tube heater 4b.
And sent to the recovery device 5. The tube heater 4b may be of another type such as a heating steam type. The collection device 5 will be described later.

The water circulating device 6 includes a circulating pump 9 provided between a partition plate 8w provided near the rear end in the water tank 8 and a rear end wall.
And a pipe 10 connected to supply the pressurized water to the hollow portion of the vertical support frame 1a. The circulating pump 9 sends out water from which dirt has been removed by a filter thereunder, and water jetted from a large number of washing nozzles 3a via the hollow portion of the vertical support frame 1a is used for the wire meshes 4a, 4a of the inclined vibrating screen device 4. When the water falls through the partition plate 8w and the front end wall, the water is stored between the partition plate 8w and the front end wall, and the stored water overflows the partition plate 8w and flows into the rear compartment. ing.

A stirring device 7 is provided in the front compartment between the partition plate 8w and the front end wall, and water sucked by a suction pump 11 provided in the vicinity of the center of the water tank 8 through a filter thereunder is provided. A plurality of blowing nozzles 13 are provided in a pipe 12 provided above the pump at a position below the water surface, and are blown downward from the blowing nozzles 13 to stir the water stored in the front compartment. Since water containing fine mud which has passed through the wire meshes 4a and 4a of the inclined vibrating sieve device 4 is stored in the front compartment, the mud is stirred so as not to settle and accumulate on the bottom, and the dirt is hardened locally. I try not to.

The amount of water stored in the front compartment increases,
As for the water overflowing the partition plate 8w, the portion from which the dirt has been removed moves to the rear compartment. When used for a long period of time, the water stored in the front compartment is gradually contaminated, and when it becomes more than a predetermined level, the valve 14 of the water supply pipe 15 connected to the pipe 12 is opened to supply new water. Even if water is supplied by this water supply, when the water in the rear compartment is sent out by the circulation pump 9 and decreases, a predetermined water level is detected by a float switch 16 provided to adjust the water level, and an electric valve 17 is provided. And water can be supplied from the water supply pipe 18.

The compressed air is sent out from an air pump 19 installed outside the water tank 8, is sent through a pipe 20 to the hollow portion at the front end of the vertical support frame 1a, and is jetted from a number of washing nozzles 3b. It has become so. In order to detect that the vehicle has entered the road surface 2 of the top of the pit P, the inlet, the outlet is provided an optical sensor P _H, respectively, the vehicle is detected by the presence or absence of shading between the sensor You.

The recovery device 5 is composed of a combination of a horizontal conveyor 5a and a vertical conveyor 5b in the illustrated example. There may be various conveyors other than the illustrated example, and it is needless to say that any type of means may be used as long as it can transport mud to a predetermined place. When the mud selected by the inclined vibrating sieve 4 falls, the horizontal conveyor 5a receives the mud on the receiving plate 21 or directly puts the mud on the endless belt conveyor 23 spanned between a pair of rollers 22 to form a pit. It is provided so as to be carried out of P.

The vertical conveyor 5b is provided in a vertical space S outside the pit P, and a pair of upper and lower rollers 2
It is made up of a belt conveyor 25 stretched between 4 and 24 and having scraping blades 26 at predetermined intervals, and the mud lifted upward is conveyed from a discharge port 27 to the ground E. .

The mud cleaning equipment of the embodiment configured as described above cleans mud adhering to tires of a vehicle as follows. First, when the optical sensor P _H detects that the vehicle has entered a predetermined position on the traveling road surface 2, the control unit (not shown) supplies power to the circulating pump 9, the suction pump 11, the air compressor 19, the power unit such as the tube heater 4 b, and the heating unit. The power supply for supplying power is turned on.

The pressurized water sent from the circulation pump 9 is simultaneously sprayed from both sides and from below onto the tire T of the vehicle by a large number of washing nozzles 3a, and the mud adhering to the tire is washed away from the tire by the pressure of the water and dropped off. . The fallen mud is softened together with the water, falls slightly between the grids of the traveling road surface 2, and falls on the inclined vibrating sieve device 4. The mud deposited on the wire mesh 4a of the inclined vibrating sieve 4 is
The wire mesh 4a is sieved by vibrating the wire mesh 4c, and at the same time, the mud that has been heated by the tube heater 4b and adhered to the wire mesh 4a is dried to be easily separated.

Since the wire mesh 4a in the illustrated example has a large number of small holes of 12 m / m mesh, the mass of mud more than the small holes rolls down on the inclined wire mesh surface due to vibration to the collecting device 5. Is sent. Most of the mud is larger in size than the small holes in the wire mesh 4a, and is therefore carried out of the pit P by the horizontal conveyor 5a and the vertical conveyor 5b of the recovery device 5 and transferred to a predetermined place.

Mud smaller than the small hole of the wire mesh 4a
Falls with the water and falls into the front compartment in the water tank 8, but since the mud is smaller than the amount of water, it is stirred by the stirring device 7 while being contained in the stored water, and the mud is solidified. No water is stored. When the amount of stored water overflows beyond the partition plate 8w, relatively little water of mud flows backward into the compartment, the mud is removed by the filter by the circulation pump 9, and is sent again to the washing nozzle 3a.

If the dirt of the water stored in the front compartment becomes severe, the valve 14 of the water supply pipe 15 is opened to supply fresh water, the dirt is kept constant, and a large amount of water is recirculated and sent out from the rear compartment. When the water falls below a predetermined level, the valve 17 of the water supply pipe 18 is opened to supply water and maintain a predetermined water storage amount.

When the mud of the tires of the vehicle is washed and dropped on the front and rear wheels in this manner, the vehicle is slowly advanced gradually, firstly, to a position where air is blown to the front wheel tires, and the vehicle is washed by water injection. The moisture adhering to the tire is blown off by the air injection nozzle 3b and dried. Following the front wheel, the tires at the intermediate position and the rear wheel are blown off by the washing nozzle 3b to dry them, and the vehicle is slowly moved forward. When all the tires have been dried, the operation is completed.

In the above embodiment, the main members such as the support frame 1, the traveling road surface 2, the washing nozzle 3, the inclined vibrating screen device 4, the recovery device 5, the water circulation device 6, the stirring device 7, and the water tank 8 are installed in the pit P. Although an example has been shown, these may not necessarily be installed in the pit P, but may be installed, for example, in a structural member that supports the entirety or in a building.

The pressurized water to the washing nozzle 3 is supplied through the hollow portion of the vertical support frame 1a.
The pipe 10 may be directly connected to the cleaning nozzle 3 from the circulation pump 9 and supplied without passing through the hollow portion. The support type of the support frame 1 may be any other type as long as it can support the traveling road surface 2 in addition to the above.

[0032]

As described in detail above, the mud washing equipment of the present invention has a washing nozzle disposed along a traveling road surface supported on a support frame, and the dropped mud is sorted by an inclined vibrating screen device. The collected mud is transported to the outside by a collection device, so there are no dangerous rotating rollers on the road surface where the vehicle stops running, so it is safe and easy to maintain, and water is sprayed from the washing nozzle. The mud adhering to the wheel tires is washed off and sorted by the inclined vibrating sieve device, collected only at the predetermined place and collected, so there is no need to use any coagulant etc. The advantage is that it can be done.

[Brief description of the drawings]

FIG. 1 is a main longitudinal sectional view of a mud washing facility of an embodiment.

FIG. 2 is a plan view of the above.

FIG. 3 is a sectional view taken along the line III-III in FIG. 1;

FIG. 4 is a sectional view taken along line IV-IV in FIG. 1;

[Explanation of symbols]

1 supporting frame 2 road surface 3 washing nozzles 4 inclined vibrating sieve device 5 recovery device 6 water circulation apparatus 7 whisking device 8 aquarium 9 circulation pump 11 water supply pump 19 air pump P pit E ground surface P _H photosensor

Continuation of front page (58) Fields investigated (Int. Cl. ⁷ , DB name) B60S 1/68 B60S 3/00-3/06 B60B 5/00 C02F 11/12

Claims (3)

(57) [Claims] 1. A traveling road surface having a width sufficient for traveling is provided on a support frame corresponding to wheels of a transport vehicle that transports mud,
A washing nozzle that cleans mud attached to the wheel tires is arranged along the running road surface, and most of the mud is collected by an inclined vibrating sieve device that screens mud that has fallen below the running road surface,
Comprising a collecting device for collecting the collected mud, the inclination
Install the inclined vibrating screen device on a wire mesh equipped with a tube heater.
Water is removed from the mixture of mud and water dropped from the tire by injecting water from the washing nozzle among the above-mentioned washing nozzles, and water is removed by the inclined vibrating sieve device, and the mud is collected by the collecting device. Mud washing equipment consisting of: 2. The washing nozzle according to claim 1, wherein the washing nozzle is disposed below and beside the wheel tire, and is provided so that pressurized water is supplied by a circulation pump of a water circulation device to spray water. Mud washing equipment. 3. The mud cleaning equipment according to claim 2 , wherein the pressurized water from the circulation pump is supplied to the cleaning nozzle via a hollow portion of a vertical support frame constituting a support frame.