JP2002146741A - Wet type spraying device for antifreezing admixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To uniformly spray an antifreezing admixture, whose grain size is made uniform and which is put into in a uniformly wet state by a solution, on an icy and snowy road surface and the like. SOLUTION: A grain-size adjusting device A composed of a rolling mill device 8 having rolling mills 13a and 13b is mounted on the exhaust port of a car body-mounted chemical hopper through an acceptance hopper 10. Below the device 8, there is disposed a solution spraying device B having spray nozzles 37a and 37b for spraying the solution around the antifreezing admixture falling from the device 8. Below a chute 51 mounted under the device B, there is disposed a spraying disk 48 of a spraying mechanism C rotated by an electric motor 49. The antifreezing admixture, sent from the chemical hopper to the device A through the exhaust port by a screw conveyor, is uniformly miniaturized in the device A. After that, the antifreezing admixture, undergoing the spraying of the solution by the device B, is made to fall on the spraying disk 48 while being put into the wet state for the purpose of being uniformly sprayed on the icy and snowy road surface and the like.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wet spraying apparatus for spraying a deicing agent having a uniform particle size in a wet state on a snowy or snowy road surface.

[0002]

2. Description of the Related Art Conventionally, as a wet type spraying device of this type of antifreezing agent, a dry antifreezing agent contained in a hopper mounted on a vehicle body is sent to the rear of the vehicle body by a transport conveyor and dropped onto the spraying device. In the spraying vehicle that spreads on the road surface with the spraying disk of the spraying device, between the conveyor and the spraying device, an inclined chute, an injection nozzle, a reflecting wall member,
A convergent chute is provided, the antifreezing agent falling from the conveyor is received by the inclined chute and guided obliquely downward, and the solution is ejected in a layered manner from above by an ejection nozzle along the inclined chute. It is known that the falling anti-freezing agent and the solution collide with the reflecting wall member and mixed to form a wet anti-freezing agent, and the wet anti-freezing agent is dropped onto the spraying disk by a convergent chute. ing. (JP-A-11-222
No. 827).

[0003]

However, in the conventional wet spraying apparatus for deicing agents, since the solution is jetted in a layered manner along an injection nozzle or an inclined chute, the deicing agent flowing down on the inclined chute is In particular, when the particle size is not adjusted, only one side in contact with the inclined chute is excessively wet, but on the other side, there is a portion where a wet state cannot be obtained. The condition cannot be obtained, and as a result, there is a possibility that the wet anti-freezing agent cannot be uniformly applied to the road surface. In addition, since the antifreezing agent is in contact with the inclined chute, it may adhere to the inclined chute, grow, and may not fall smoothly downward. In this case,
There is also a problem that the work of spraying the moist deicing agent onto the road surface efficiently is hindered.

The present invention has been made in view of the above-mentioned circumstances, and uniformly sprays a deicing agent having a uniform particle size and a uniform wet state by uniformly mixing with a liquid solution on ice and snow road surfaces. It is an object of the present invention to provide an apparatus for spraying a deicing agent which can be applied.

[0005]

The present invention has the following features to solve the above-mentioned problems. That is, the wet anti-freezing spraying device according to claim 1 sends out the anti-freezing agent contained in the medicine hopper mounted on the vehicle body from the discharge port connected to the medicine hopper, and spreads the anti-freezing agent on the road surface by the spraying mechanism. A wet-spraying device for an antifreezing agent to be sprayed, wherein a particle size adjusting device for adjusting the particle size of the antifreeze sent out from the outlet between the outlet and the spraying mechanism; And a solution spraying device for spraying a solution during the free fall on the deicing agent having a regulated particle diameter.

[0006] In the apparatus having the above structure, the antifreezing agent such as raw salt contained in the medicine hopper is crushed by the particle size adjusting device while being supplied from the outlet to the spraying mechanism, and the particle size is kept constant. And then dropped on the spraying mechanism. The antifreezing agent dropped onto the spraying mechanism is wetted because the solution sprayed from the solution spraying device adheres during the free fall, and is turned on the road surface by the rotation operation of the spraying disc or the like of the spraying mechanism. Sprayed. And by operating the spraying mechanism while moving the car body,
Spraying of the moist deicing agent on the required area of the road surface is performed. According to the device having the above configuration, the solution is sprayed by the solution spraying device immediately before the spraying on the antifreezing agent whose particle size is adjusted to be constant by the particle size adjusting device.
The anti-freezing agent makes the wet state of the granules uniform, and is sprayed at a uniform spray density on the road surface by the spraying mechanism, whereby the effect of preventing the road surface from freezing is favorably exhibited.

[0007] The wet anti-freeze spraying device according to claim 2 is the device according to claim 1, wherein the particle size adjusting device is:
It is characterized by comprising a mill device having at least a pair of mills that rotate relative to each other. In the apparatus having this configuration, the antifreezing agent having various particle sizes is surely pulverized by the mill device, easily adjusted to have a uniform particle size, and supplied to the spraying mechanism.

[0008] A wet spraying device for an antifreezing agent according to claim 3 is the device according to claim 2, wherein the solution spraying device comprises:
It is characterized in that it is provided with a plurality of spray nozzles having injection ports directed from at least both sides of the region where the antifreezing agent falls into the region. In this device, the solution is sprayed uniformly around the deicing agent whose particle size is adjusted uniformly,
The antifreezing agent is uniformly applied with the solution to the granules to obtain a more uniform wet state, and is evenly spread on a frozen road surface or the like.

In a fourth aspect of the present invention, there is provided a wet spraying device for an antifreezing agent, wherein the solution spraying device comprises:
A spray amount adjusting means for adjusting the spray amount of the solution from the spray nozzle according to the rotation speed of the mill of the mill device is provided. In this device, the spray amount of the solution sprayed from the solution spraying device is adjusted according to the supply amount of the antifreezing agent dropped from the mill device after the particle size is adjusted. The proportions of the amounts are set and adjusted appropriately and the wet concentration of the cryoprotectant granules is kept constant.

According to a fifth aspect of the present invention, there is provided the wet spraying apparatus for an antifreezing agent according to the fourth aspect, wherein the spray amount adjusting means is configured to supply a solution to the spray nozzle in accordance with the number of revolutions of the mill of the mill apparatus. A control device for adjusting the discharge amount of the pump is provided. In this device, the supply amount of the solution to the injection nozzle can be easily adjusted with a simple configuration without using an expensive flow control valve or the like, and maintenance and inspection are also easy.

According to a sixth aspect of the present invention, in the wet spraying device for an antifreezing agent according to any one of the first to fifth aspects, the device falls from the particle size adjusting device between the solution jetting device and the spraying mechanism. A chute for guiding the antifreezing agent toward the center of the spraying mechanism is provided. In this device, the solution sprayed from the solution spraying device is prevented from scattering around, and the antifreezing agent that has fallen from the particle size adjusting device and has become wet is reliably guided to the spraying mechanism.

[0012]

Embodiments of the present invention will be described below with reference to the accompanying drawings. In the figure, reference numeral 1 denotes a vehicle body of a vehicle R which is self-propelled by an engine. The vehicle body 1 has a medicine hopper 2 in which a square cylindrical body 1a is connected to a bottom 1b which is inclined so that the lower end at the center in the width direction of the vehicle 1 is narrowed. The arranged solution tanks T, T are mounted. A lower end portion of the medicine hopper 2 is formed as a conveyor case 2a having a front end side higher and a rear end side inclined lower and having an arc-shaped cross section along the front-rear direction of the vehicle body 1, and a vehicle body 1 inside the conveyor case 2a. The transport screw 3 extended in the front-rear direction is disposed so that its axial end is rotatably supported on the front and rear end walls of the medicine hopper 2 around the axis. Conveyor case 2a and transfer screw 3
Thus, the screw conveyor 4 is constituted. The transfer screw 3 is rotated by a hydraulic motor 6 whose rotation is controlled by a hydraulic device 5. As will be described later, the hydraulic device 5 uses the engine of the vehicle R to generate P
A hydraulic pump, a hydraulic tank driven through a TO device,
It is equipped with various electromagnetic proportional control valves.

A rear end wall 1c on the bottom 1b side of the medicine hopper 2 is formed as a box-shaped outlet 7 protruding rearward of the vehicle body 1 and having a lower end opened. Have been contacted. At the lower end of the outlet 7, a particle size adjusting device A for pulverizing the antifreeze and adjusting its particle size, and a solution spraying device B for spraying a solution onto the antifreeze falling from the particle size adjusting device A Spraying mechanism C for spraying the deicing agent moistened by the solution spraying device B onto the road surface E
Is attached.

As shown in FIGS. 3 to 7, the particle size adjusting device A is constituted by a roll mill device (mill device) 8, which is substantially rectangular in plan view and provided with lower openings 9a and 9b. A rectangular parallelepiped mill storage box 9 and an inverted quadrangular pyramid connected to the upper end of the mill storage box 9 and connected to the inside of the mill storage box 9 through an upper opening 9a and extending upward in side view. The mill device main body 12 includes a receiving hopper 10 and a discharge port member 11 having a rectangular shape in a plan view and connected to a lower portion of the mill storage box 9 in communication with the lower opening 9b. As shown in FIGS. 3 and 6, the upper end flange 10a of the receiving hopper 10 is bolted to the lower end flange 7a of the outlet, so that the receiving hopper 10 is attached to the lower end of the outlet 7 of the medicine hopper 2. Have been.

As shown in FIG. 7, a pair of cylindrical roll mills (mills) 13a and 13b having the same diameter and having a large number of blades extending in the axial direction are provided inside the mill storage box 9 as shown in FIG. The direction is parallel to the width direction of the vehicle body 1 and is provided rotatably. Further, inside the receiving hopper 10, a stirring blade 14, which is located near the upper opening 9a and feeds the deicing agent into the roll mill storage box 9, has its rotating shaft 14a rotated by the shaft of the roll mill 13 (13a, 13b). It is provided rotatably in parallel with the direction. The stirring blade 14
Is a blade 14b directed radially around the outer circumference of the rotating shaft 14a.
Are arranged at intervals in the circumferential direction and the axial direction, and the blades 14b are arranged adjacent to each other in the circumferential direction, the twisting directions are opposite to each other, and the phases are shifted in the axial direction between the diametrically opposed blades. Have been.

As shown in FIG.
A gear box 15 is fixed to one side, and a drive gear 17 attached to an output shaft of a hydraulic motor 16 fixed outside the gear box 15, and a rear side in the front-rear direction of the vehicle body 1 in the mill storage box 9. Gear 19 fixed to a shaft 18a on one side of the roll mill 13b
And are housed in the gear box 15. A chain wheel 20 is attached to the shaft 18b on the other side of the roll mill 13b, and a chain wheel 21 is fixed to the other side of the rotating shaft 14a of the stirring blade 14, and a roller chain is attached to the chain wheels 20, 21. The rotation of the hydraulic motor 16 is transmitted to the stirring blade 14 through the drive, the driven gears 17, 19, and the speed reduced via the chain wheels 20, 21.

Further, the driven gear 19 is meshed with a driven gear 24 fixed to a shaft 23a on one side of the roll mill 13a disposed on the front side in the mill storage box 9 (FIG. 3). , FIG. 8). Each driven gear 1
9 and 24 have different numbers of teeth.
The reference numerals 3a and 13b rotate relative to each other while gradually shifting their phases in opposite directions.
The interval h between the outer peripheral surfaces of the roll mills 13a and 13b is:
The minimum value is determined by the distance between the centers of the driven gears 19 and 24. As shown in FIGS. 3 and 8, one side of the roll mill 13a on the front side and the shafts 23a and 23b on the other side are roll-milled by a pair of upper and lower guide members 25a and 25b fixed to both side walls of the mill device main body 12. Shafts 18 (18a, 18b), 23 (23a, 23b) of 13a, 13b
Are rotatably supported by bearings 27 fixed to a pair of left and right sliders 26 movable in a linear direction connecting the centers of the sliders.

Each of the sliders 26 has a cylindrical member 28 projecting forward (to the left in FIGS. 3 and 4).
A compression spring 29, 29 is mounted on each of the cylindrical members 28, 28. A pair of support shafts 30, 30 project forward and are fixed to the front surface of the mill device main body 12, and a support plate 31 is attached to the tip of each support shaft 30 by adjusting screws 32, 32. It is supported so that it can be moved and adjusted in the axial direction of 30 (front-back direction). Holes 31a, 31a provided at both ends (upper and lower ends in FIG. 4) of the support plate 31 in the width direction of the vehicle body 1 include:
The front end of the cylindrical member 28 is slidably inserted, and the front end of the compression spring 29 is in contact with the rear surface of the support plate 31. As a result, the front roll mill 13a is moved by the compression spring 29 to the cylindrical member 28, the slider 26, and the bearing 27.
, And is elastically urged toward the side facing the rear roll mill 13b.

A stopper bolt 33 for restricting the slider 26 from moving forward is attached to the mill body 12 so as to be adjustable in position. The roll mill 1 is provided inside the outlet member 11 along the front and rear edges thereof.
A scraper 34 (see FIG. 7) having a blade surface in contact with the outer periphery of the lower end of 3a, 13b is fixed.
The antifreezing agent adhering to the tooth surfaces of a and 13b is scraped off.

Next, the solution jetting device B is shown in FIGS.
As shown in FIG. 2, the lower end flange 11a of the discharge member 11 in the mill device main body 12 is provided with a square cylindrical nozzle support member 35 attached via an upper end flange 35a. The distribution pipes 36a and 36b are supported along the distribution pipes 36a and 36b, and the distribution pipes 36a and 36b have injection nozzles 37a and 37b having injection ports that face toward the center of the nozzle support member 35 and are slightly inclined downward.
However, a plurality of connection pipes are provided at appropriate intervals in the axial direction of the distribution pipes 36a and 36b. As shown in FIG. 10, the distribution pipes 36a and 36b are pipes 39a and 3 having electromagnetic on-off valves (three-way valves) 38a and 38b, respectively.
9b is connected to a solution pump 41 via a pipe 40,
The solution pump 41 is connected by a pipe 42 to the solution tank T,
Connected to T. The electromagnetic on-off valves 38a, 38
8b is connected to the solution tanks T, T via the solution return pipes 39c, 39d, and when the outlets on the pipes 39a, 39b are closed, the outlets on the solution return pipes 39c, 39d are opened;
The discharge pressure of the solution pump 41 during operation is released to the solution tanks T, T.

The other side (right side in FIG. 5) is supported by a hinge 9e on a flange 9d provided around the rear end side opening 9c of the mill storage box 9, and one side is a talking screw 42.
An opening / closing lid member 43 is provided, which is fixed at the opening and closing position. The spraying mechanism C is supported by the opening / closing lid member 43 and a mounting plate 44 fixed to the lower ends of the pair of reinforcing plates 43a, 43a. As shown in FIG. 7, the sprinkling mechanism C includes a support base 45 suspended from the mounting plate 44, a bearing cylinder 46 detachably attached to a lower portion of the support base 45 by a bolt, and a pair of upper and lower A vertical rotating shaft 47 rotatably supported by bearings 46a, 46a, and a spreading disk 4 fixed to the lower end of the rotating shaft 47 and provided with radial guide vanes 48a on the upper surface;
8 and an electric motor 49 with a speed reducer attached to the mounting plate 45 and having an output shaft connected to the upper end of the rotary shaft 47 by a joint 47a.

At the lower end of the bearing cylinder 46, the spray disk 4
8 and a disc-shaped cover plate 5 with a slight gap
0 is fixed, and the rotating shaft 4 on the front side of the cover plate 50 is fixed.
7 is provided with a polygonal half-moon-shaped hole 48b.
The lower end opening of the chute 51 attached to the lower end of the chute 51 with a bolt or the like via a flange 51a is communicated with the hole 48b,
The antifreezing agent flowing down in the chute 51 is dropped on the spray disk 48. The cross section of the chute 51 is formed in a rectangular shape on the upper end side so as to conform to the shape of the nozzle support member 35 in a plan view.
It is formed to be the same as b (see FIG. 4).

Next, the hydraulic motor 6 for rotating the screw conveyor 4 and the roll mill 1 of the roll mill device 8
Hydraulic motor 1 for rotating 3a, 13b and stirring blade 14
6. An automatic spray control device G for operating and controlling the solution pump 40 of the solution spraying device B, the electric motor 49 for rotating the spray disk of the spray mechanism C, and the like will be described with reference to FIG. The automatic spraying control device G includes a vehicle speed sensor 53 for detecting a running speed of the vehicle R, and the roll mill device 8.
And a controller 55 which is connected to the shaft portion 18b of the roll mill 13b on the rear side and receives a signal from a rotary encoder (rotation sensor) 54 (see FIG. 5) for detecting the rotation speed of the roll mill 13b. . The controller 5
The hydraulic motor 5 controls the flow rate of hydraulic oil discharged from hydraulic pumps 58 and 59 by operating electromagnetic proportional flow control valves 56 and 57 in accordance with the traveling speed of the vehicle R detected by the vehicle speed sensor 53. While controlling the rotation speed of 6, 16
An electric motor 60 that controls the number of revolutions of the electric motor 49 and rotates the solution pump 41 in accordance with the number of revolutions of the roll mill 13 b detected by the rotary encoder 54.
Is controlled to control the discharge amount of the solution pump 41.

Next, the operation of the wet anti-freezing agent spraying apparatus constructed as described above will be described. In advance, the body 1
And a solution such as water or salt water is put into the solution tank T, and the vehicle body 1 is placed on a spraying site having a road surface to be prevented from freezing such as an ice and snow road surface. To move. When the screw conveyor 4 is driven by operating the hydraulic motor 6 while the vehicle body 1 is running at the spraying site and the roll mill device 8 is driven by operating the hydraulic motor 16, the screw 3 of the screw conveyor 4 freezes. The inhibitor is sent to the rear of the medicine hopper 2, falls from the discharge port 7 into the receiving hopper 10, and is sent to the center of the mill storage box 9 of the roll mill device 8 while being stirred by the stirring blades 14.

The anti-freezing agent sent into the mill storage box 9 is supplied to the roll mills 13a, 1
The particles are crushed by 3b to be uniformly fine-grained, the particle diameter is adjusted, and the particles fall naturally downward. The spontaneously falling antifreezing agent forms a layered falling area F along the width direction of the vehicle body 1, and the solution is sprayed from both sides by the spray nozzles 37 a and 37 b of the solution spraying device B to be in a wet state. It is guided by 51 and falls on the spraying disc 48 rotated by the electric motor 49 of the spraying mechanism C. The wet deicing agent dropped onto the spraying disk 48 is sprayed on the required road surface E by the scattering action of the guide blades 48a accompanying the rotation of the spraying disk 48.

The deicing agent crushed by the roll mills 13a and 13b contains hard foreign materials such as pebbles, bolts and nuts.
Is rolled, the roll mill 13a moves in a direction away from the roll mill 13b against the elasticity of the compression spring 29 biasing the roll mill 13a, so that the gap h is widened and the foreign matter passes downward. Therefore, the roll mill 13a, 1
An accident in which 3b is damaged by excessive force is prevented. The chute 51 prevents the solution from scattering around and facilitates the guidance of the antifreeze to the spraying disc 48. Since the deicing agent keeps the particles in a uniform wet state by the solution, the deicing agent does not adhere to the chute 51 and hinder its flow.

In the above, when the position of the support plate 31 in the front-rear direction is adjusted by adjusting the screwing amount of the adjusting screw 32 screwed to the support shaft 30 of the mill device main body 12, the compression spring 29 causes the roll mill 13a, Since the amount of movement of the slider 26 for urging the sliders 13b toward each other changes, the distance between the centers of the roll mills 13a and 13b can be changed, and the gap h between the roll mills 13a and 13b can be adjusted. . The gap h is set to a minimum value based on the distance between centers where the driven gears 19 and 24 mesh with each other in the pitch circle, and the gap h is determined according to the type of the antifreeze agent and the degree of the mixture of large and small particle sizes. In order to properly maintain the duration of the effect of the deicing agent sprayed according to the road surface condition, etc., the screwing amount of the adjusting screw 32 is adjusted and set so as to obtain a deicing agent of a required particle size. I do.

During the operation of spraying the deicing agent, in the automatic spraying control device G, the controller 55 receives a signal from the vehicle speed sensor 53 and controls the rotation speed of the hydraulic motors 6, 16 according to the moving speed of the vehicle body 1. That is, the screw conveyor 4
And the rotational speeds of the roll mills 13a and 13b are feedback-controlled, so that the antifreezing agent, which has been sent from the chemical hopper 2 to the roll mill device 8 and which has been refined by the roll mills 13a and 13b and whose particle size has been adjusted, is rolled.
Is controlled according to the moving speed of the vehicle body 1.

Further, the controller 55 controls the roll mill 13b detected by the rotary encoder 54.
Controlling the rotation speed of the electric motor 60 according to the rotation speed of
Since the discharge amount of the solution by the solution pump 41 is controlled, the antifreeze agent is injected from the injection nozzles 37a and 37b of the solution injection device B in accordance with the amount of the antifreeze agent falling from the roll mill device 8 per unit time. The amount of the solution to be sprayed is adjusted appropriately. Thereby, the antifreezing agent supplied to the spraying disc 48 of the spraying mechanism C is brought into a uniform wet state by the particles being in good contact with and mixed with the solution.
Its wet concentration is kept constant.

According to the above-mentioned wet spraying device for the antifreezing agent,
After the deicing agent is crushed and refined by the roll mill device 8 (particle size adjusting device A) to make the particle size uniform, the solution is sprayed around by the solution jetting device B while being naturally dropped from the roll mill device 8. The antifreezing agent is supplied to the spraying disk of the spraying mechanism C in a state of being moistened to a certain concentration by the solution. As a result, the scattering distance of the antifreeze in the wet state by the spraying disk 48 becomes substantially constant, and the spraying density of the antifreeze on the road surface becomes uniform.

Therefore, there is no need to adjust the particle size of the antifreezing agent contained in the medicine hopper 2 in advance, and the handling and management thereof are easy. In addition, the micronized antifreeze is mixed with the solution immediately before spraying and is rapidly dissolved in the solution to form a slurry, so that the adhesion to the road surface is improved, and water instead of an expensive chemical solution is used as the solution. To exert a quick-acting and high antifreeze effect after spraying. Therefore, there is no need for a fixed facility for manufacturing and storing the chemical solution in advance.

Since the rotation speed of the roll mills 13a and 13b of the roll mill device 8 is controlled by the automatic spray control device G in accordance with the moving speed of the vehicle body 1, the wet antifreeze sprayed on the road surface is sprayed. The amount becomes uniform,
The road surface is effectively prevented from being frozen. As described above, the antifreezing agent is refined by the roll mill device 8, so that the antifreezing agent is not scattered far away by the spray disk 48, and hits an oncoming vehicle during the spraying operation to scratch the painted surface. There is no fear of attaching.

In the above embodiment, the particle size adjusting device A is constituted by the roll mill device 8. However, the particle size adjusting device A is not limited to this, and may be a cone mill device (mill device) or other appropriate pulverizing device. You may comprise. In the case of a cone mill, an inverted conical cylindrical mill case (fixed mill) is attached below the receiving hopper 10, and an inverted conical crushed body (rotary mill) that is rotated by a hydraulic motor or the like is inserted therein. A plurality of injection nozzles are arranged below the cone mill device at appropriate intervals around a cylindrical falling area formed by a deicing agent that is crushed by the device and falls from the outer peripheral portion of the crushed body. A solution spraying device is provided so that the solution is sprayed without unevenness on the deicing agent.

As described above, the solution spraying device is not limited to the device in which a plurality of spray nozzles are arranged opposite to each other on both sides of the layered falling region F of the antifreezing agent as in the above-described embodiment. A plurality of injection nozzles may be appropriately arranged according to the shape of the region where the agent falls, so that a favorable wet state can be obtained. ,

In the above embodiment, the medicine hopper 2 is connected to the discharge port 7 for dropping the deicing agent to the hopper 10 of the roll mill device 8 by the screw conveyor 4. Without providing the screw conveyor 4, the bottom of the medicine hopper 2 is continuously greatly inclined from the front end side to the rear end side, and the discharge port 7 is provided at the lowest part on the rear end side, and the medicine hopper 2 is directly provided from the medicine hopper 2. The anti-freezing agent may be dropped into the roll mill device 8 via the discharge port 7 at first.

According to the above, the structure of the apparatus can be simplified, and the antifreezing agent can be sent to the particle size adjusting device 20 in a good state while suppressing a change in the state during the conveying process by the screw conveyor 4. . Further, without disposing the screw conveyor 4 at the bottom in the medicine hopper 2, the transport screw 3 is inserted into a cylindrical conveyor case below the bottom, and the screw is moved from the front of the medicine hopper 2 to the front end of the conveyor case. The anti-freezing agent may fall into the hopper 10 from an outlet provided at the rear of the conveyor case.

In the above embodiment, the screw conveyor 4 and the roll mills 13a,
Although 13b is driven by the hydraulic motors 6 and 16, the hydraulic motors 6 and 16 may be replaced by electric motors. In this case, the same operation and effect as in the case of the hydraulic drive can be obtained.

Further, in the above embodiment, only one set of the screw conveyor 4, the discharge port 7, the roll mill device 8, the spraying mechanism C and the like is provided, but the present invention is not limited to this.
A plurality of sets may be provided in parallel, and in this case, even when the vehicle body 1 is run once even on a wide road surface, the application of the antifreezing agent can be completed, and the application operation can be performed efficiently.

In the above embodiment, the vehicle 1
Is configured as a vehicle body of a vehicle R that is self-propelled by an engine. However, the vehicle body 1 may be a vehicle body towed by the self-propelled vehicle, and the shape of the medicine hopper 2 mounted on the vehicle body 1 may be The present invention is not limited to the configuration in which the inclined bottom having the center in the width direction of the vehicle body 1 lowered below the rectangular cylindrical body as in the above embodiment, but the inverted conical bottom below the cylindrical body. May be combined, or may be a configuration of another shape.

[0040]

As described above, according to the present invention, the following excellent effects can be obtained. According to the wet spraying device of the antifreezing agent according to claim 1, the solution is sprayed by the solution spraying device immediately before spraying the antifreezing agent whose particle size is adjusted to be constant by the particle size adjusting device. The inhibitor can make the wet state of the granules uniform, and can be sprayed on the road surface at a uniform spray density by a spray mechanism,
Thereby, the effect of preventing the road surface from being frozen can be favorably exhibited.

According to the second aspect of the present invention, the antifreezing agent having various particle diameters is reliably pulverized by the mill to adjust the particle diameter to be uniform and stable. The supplied amount can be supplied to the spraying mechanism. According to the anti-freezing agent wet spraying device according to claim 3, the solution can be sprayed around the anti-freezing agent whose particle diameter is uniformly adjusted, so that the solution is applied to the particles of the anti-freezing agent. It is possible to obtain a more uniform antifreezing agent in a wet state by uniformly attaching the antifreezing agent, and to uniformly spread the antifreezing agent on a road surface or the like.

According to the fourth aspect of the present invention, the spraying of the solution sprayed from the solution spraying device is performed according to the supply amount of the antifreezing agent falling from the mill device after the particle size is adjusted. Since the amount is adjusted, the ratio of the spray amount of the solution to the deicing agent can be appropriately set and adjusted,
The wet concentration of the particles of the antifreeze can be kept constant.

According to the fifth aspect of the present invention, the supply amount of the solution to the spray nozzle can be easily adjusted by a simple structure without using an expensive flow control valve or the like. It can be performed and maintenance is easy. According to the antifreezing agent wet spraying device according to claim 6, it is possible to prevent the solution sprayed from the solution spraying device from scattering around, and to fall from the particle size adjusting device and become wet. The antifreezing agent can be reliably guided and supplied to the spraying mechanism.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIG. 2 is a view as viewed from an arrow A in FIG.

FIG. 3 is a side view of a spray portion of the antifreezing agent according to the embodiment of the present invention.

FIG. 4 is a plan view of the same.

FIG. 5 is a view as viewed from an arrow B in FIG. 3;

FIG. 6 is a view as viewed in the direction of arrow C in FIG. 5;

FIG. 7 is a sectional view taken along line XX of FIG. 5;

FIG. 8 is a sectional view taken along the line YY of FIG. 3;

9 is a view as viewed in the direction of arrows ZZ in FIG. 7;

FIG. 10 is a system diagram of the automatic spraying control device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Body 2 Chemical hopper 4 Screw conveyor 5 Hydraulic device 6, 16 Hydraulic motor 7 Discharge port 8 Roll mill device (mill device) 9 Mill storage box 12 Mill device main body 13a, 13
b Roll mill 35 Nozzle support member 37a, 37
b Injection nozzle 41 Solution pump 48 Spray disk 49,60 Electric motor 51 Chute 55 Controller A Particle size adjustment device B Solution injection device C Spray mechanism D Spray section G Automatic spray control device

Claims (6)

[Claims] 1. A wet spraying device for an antifreezing agent which sends out an antifreezing agent contained in a medicine hopper mounted on a vehicle body from a discharge port connected to the medicine hopper and sprays it on a road surface or the like by a spraying mechanism. A particle size adjusting device that adjusts the particle size of the antifreeze sent out from the discharge port between the discharge port and the spraying mechanism; and a freeze control agent that adjusts the particle size falling from the particle size adjuster. A solution spraying device for spraying the solution during the free fall. 2. The wet-spraying apparatus for an antifreeze according to claim 1, wherein the particle size adjusting device is constituted by a mill device having at least a pair of mills that rotate relative to each other. 3. The solution spraying device according to claim 2, wherein the solution spraying device includes a plurality of spray nozzles having spray ports directed from at least both sides of a region where the antifreezing agent falls into the region. Wet spray device for antifreeze. 4. The solution injection device according to claim 3, wherein the solution injection device includes a spray amount adjusting means for adjusting a spray amount of the solution from a spray nozzle in accordance with a rotation speed of a mill of the mill device. Wet spraying device for antifreeze. 5. The spray amount adjusting means includes a control device for adjusting a discharge amount of a solution pump for supplying a solution to a spray nozzle according to a rotation speed of a mill of a mill device. 4. The wet spraying apparatus for an antifreezing agent according to 4. 6. A chute is provided between the solution spraying device and the spraying mechanism to guide a deicing agent falling from the particle size adjusting device toward a center of the spraying mechanism. The wet spraying device of the antifreeze according to any one of claims 1 to 5.