JPH11222827A - Mixing device for antifreeze and solution in antifreeze sprinkler car - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mixing device for an antifreeze and a solution in a sprinkling car for the antifreeze evenly mixing the solution and the antifreeze in a simple structure to make a wet antifreeze and continuously scattering it onto roads. SOLUTION: A dry antifreeze A contained in a hopper of a sprinkler car body is transferred by a conveyor 3 and fed in an inclined chute 5 arranged under the transferring end. A solution B is jetted from a jet nozzle 6 so as to be stratified onto the the inclined chute 5 and the antifreeze A is evenly distributed on the stratified solution B and forced to collide with the reflecting face of a vertical reflecting wall face member 7 arranged at the the front side of the lower end of the inclined chute 5 and dispersed to be primarily mixed. And the antifreeze A and the solution B are collected by a converging chute 8 arranged from the lower end of the reflecting wall face member 7 to a sprinkling disk 4c to be secondarily mixed. In this way, a wet antifreeze is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mixing device for mixing a deicing agent and a solution to infiltrate the deicing agent in a vehicle for spraying a deicing agent in a wet state on a road surface. It is.

[0002]

2. Description of the Related Art Conventionally, in the winter, in order to prevent road surface freezing, a deicing agent is sprayed on a snowy and snowy road surface by using an antifreeze spraying vehicle. There are two methods of spraying the anti-freezing agent: dry spraying in which dry salt is sprayed as it is, and wet spraying in which a moist anti-freezing agent obtained by adding a solution such as salt water to salt is sprayed. Although it has been put to practical use, dry spraying has a slow antifreezing effect and may be scattered.In recent years, water or calcium chloride solution has been added to the antifreezing agent to obtain a wet antifreezing agent. Spraying of a moist deicing agent has come to be used.

As a spraying vehicle for spraying such a wet deicing agent, as shown in FIG. 5, an antifreezing agent transport conveyor B is provided below a hopper A for receiving a dried antifreezing agent.
Is disposed on the conveyor B to receive the anti-freezing agent sent from the lower end of the opening of the hopper A, and conveys it to the rear of the spreader truck to drop the anti-freezing agent dropped from the conveying end of the conveyor B. The spraying device E is disposed obliquely above the spraying disc D while the solution is sprayed onto the rotating spraying disc D through the chute C, and the solution is sprayed toward the antifreezing agent falling from the chute C, and the antifreezing agent is sprayed. What has a means constituted to humidify is widely known.

Further, as described in Japanese Utility Model Publication No. 7-48743, a stirrer having a rotary spiral blade provided inside a casing is disposed between a deicing agent transporting conveyor and a hopper. The dry anti-freezing agent and the solution are supplied into the casing of the stirrer, and are stirred and mixed by the rotary spiral blade to form a wet anti-freezing agent, and the wet anti-freezing agent is discharged onto a spraying disk and sprayed. Scattered vehicles have also been developed.

[0005]

However, according to the former anti-freeze spraying vehicle, the solution is sprayed on the anti-freezing agent falling from the chute C. Agent and a dry antifreeze to which the solution does not adhere, and when sprayed by rotation of the spraying disc D, the respective spraying ranges are different on the road surface due to the difference in specific gravity between the wet antifreeze and the dry antifreeze. There is a problem that it is not possible to uniformly spray a quick-acting wet antifreeze.

On the other hand, according to the latter antifreeze spraying vehicle,
The antifreeze and the solution can be forcibly and uniformly stirred and mixed by a stirrer, but such a stirrer has a complicated structure, is expensive, and is a ready-made antifreeze spraying vehicle equipped with a spraying disk. In addition, there is a problem that it is difficult to carry out cleaning, and maintenance and inspection of the rotary spiral blade and its driving mechanism in the casing are required, and a cleaning operation after spraying is troublesome.

The present invention has been made in view of the above problems, and has as its object to provide a simple structure without using a mixing means such as stirring a solution to a deicing agent falling toward a spraying device. It is an object of the present invention to provide a mixing device for a deicing agent and a solution in a deicing agent spraying vehicle which can be uniformly mixed by the method.

[0008]

In order to achieve the above-mentioned object, an apparatus for mixing a deicing agent and a solution in a deicing agent spraying vehicle according to the present invention comprises: In the deicing agent spraying vehicle provided with a transporting means for the antifreezing agent supplied from the antifreezing agent storage hopper and a spraying device for spraying the antifreezing agent sent from the transporting means, the transporting means, the spraying device, A slanting chute for receiving the antifreezing agent dropped from the conveying means during the slanting and guiding the slanting downward is provided, and a spray nozzle for spraying the solution in a layered manner from above along the slanting chute is further provided. The antifreeze and the solution flowing down from the inclined chute downward from the lower end of the inclined chute are jetted,
A reflecting wall member which is mixed by being diffused to serve as a wet anti-freezing agent is provided, and the wet anti-freezing agent diffused by the reflecting wall member between the lower end of the reflecting wall member and the above-mentioned spraying device in the width direction. The convergence chute for convergence is arranged.

[0009] In the mixing device of the deicing agent and the solution in the deicing agent spraying vehicle, the invention according to claim 2 is as follows.
The reflecting wall member is formed of a rectangular cylindrical body having upper and lower ends opened and a vertical front wall inner surface formed as a reflecting wall surface, and the inclined wall is inclined forward and obliquely into an upper end opening of the rectangular cylindrical body. The lower end of the chute is inserted, and the lower edge of the lower end is opposed to the rear of the reflecting wall surface of the rectangular cylindrical body at a predetermined interval.

The invention according to claim 3 is the structure of the convergent chute for converging the anti-freezing agent in the width direction while flowing down, and the guide surface of the anti-freezing agent of the convergent chute is arranged in the width direction. The guide surface is curved in an arc shape rearward from the center to both side edges, and the guide surface is formed gradually narrower from the upper end to the lower end, and the guide surface is inclined from the upper end to the lower end. It is characterized by:

[0011]

A dry powder anti-freezing agent is stored in a storage hopper installed in the spraying car body, and the anti-freeze is sprayed from a lower end of the opening of the storage hopper by a conveying means such as a belt conveyor or a screw conveyor. It is transported to the rear of the vehicle body and falls from the transport end. On the other hand, an inclined chute is arranged below the conveying end of the conveying means, and an injection nozzle is arranged on an upper end side of the inclined chute toward an inclined surface of the inclined chute. Is jetted along the inclined surface of the inclined chute to form a fluidized bed of the solution flowing from the upper end to the lower end on the inclined chute. Therefore, the antifreeze sent out from the transport end of the transport means falls on the solution fluidized bed, and the flowing solution penetrates the antifreeze and rides on the flow of the solution, so that the antifreeze vigorously flows. It flows out from the lower end of the inclined chute and strikes the reflecting wall member.

The solution and the deicing agent that have flowed into the reflecting wall member rebound and diffuse, and the solution adheres to the entire deicing agent.
Mix to wet the cryoprotectant. Further, the moistened deicing agent flows downward on the convergent chute while converging as the diffusion width is gradually narrowed by the convergent chute,
The anti-freezing agent and the remaining solution are gathered together before falling from the convergent chute, and the solution is mixed and permeated so as to have a substantially uniform ratio over the entire anti-freezing agent. The agent falls from the convergent chute onto the spraying device and is sprayed on the road surface by the spraying device.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, specific embodiments of the present invention will be described with reference to the drawings. 1 and 2, 1
Is an antifreeze spraying vehicle main body, on which a storage hopper 2 for a dry powdery and granular antifreeze is mounted and installed on its chassis 1a. Both side walls of the hopper 2 are formed on inclined wall surfaces that are inclined in a direction approaching each other toward the lower end, and the lower end is opened, and a belt conveyor that conveys the deicing agent A backward along the open lower end is formed. Transport conveyor 3 is provided. In addition, the conveying means of the antifreezing agent A is not limited to a belt conveyor, and a conveying means such as a screw conveyor may be adopted.

Reference numeral 4 denotes an anti-freezing agent spraying device disposed at the rear end of the chassis 1a of the spraying car main body 1 and below the conveying end of the conveying conveyor 3, and includes a vertical center shaft 4b rotated by a drive motor 4a. The center of the spreading disk 4c is integrally fixed to the lower end, and a plurality of spreading blades 4d are radially projected on the upper surface of the spreading disk 4c. Then, as shown in FIGS. 3 and 4, between the spraying device 4 and the conveyor 3, the dry antifreezing agent A dropped from the conveyor 3 is received and guided diagonally downward. Inclined chute 5, an injection nozzle 6 disposed at the upper end of the inclined chute 5, and spraying a solution B for moisturizing the antifreeze A onto the inclined chute 5, and freezing flowing out from the lower end of the inclined chute 5. A reflecting wall member 7 having a vertical reflecting surface 7A for causing the inhibitor A and the solution B to flow and reflecting and diffusing obliquely downward, a lower end of the reflecting wall member 7 and the spraying disk 4c of the spraying device 4; And a converging chute 8 for sequentially converging the anti-freezing agent A ′ diffused by the reflecting wall member 7 in the width direction, are provided between the inclined chute 5, the reflecting wall member 7, the converging chute 8 and Antifreeze A
And a solution B.

The structure of the mixing apparatus will be described in more detail.
A trapezoidal metal plate having a front inverted isosceles shape that is formed wider than the upper end and gradually narrows from the upper end to the lower end. The anti-freezing agent A falling from the conveyor 3 is disposed on the upper surface of the inclined front surface in a state of being inclined forward.
Further, both side plates 5a, 5a protruding forward are integrally provided on both side ends of the inclined chute 5, and the front ends of the both side plates 5a, 5a are attached to the rear end surface of the chassis 1a of the spraying car body 1. It is stuck.

The reflecting wall member 7 disposed below the inclined chute 5 is formed of a rectangular cylinder whose upper and lower ends are open, and the width between the side wall plates 7b, 7b of the rectangular cylinder is defined by the angle of the inclined chute 5.
And a vertical inner surface (rear surface) of the front wall plate 7a is formed on the reflection surface 7A of the antifreeze agent A and the solution B. By fixing this front wall plate 7a to the rear end of the chassis 1a of the spraying vehicle body 1, the reflection wall member 7
Is disposed at a predetermined position, and the lower end of the inclined chute 5 is further inserted into the upper end opening of the reflecting wall member 7.
It is inserted between the lower end edge of the lower end portion and the reflecting surface 7A of the reflecting wall member 7 at a predetermined interval in the front-rear direction.
Further, the mixture of the antifreezing agent A and the solution B, which collides with the reflecting surface 7A and reflects and diffuses backward, is scattered to the outside by the vertical rear wall plate 7c and the side wall plates 7b, 7b of the reflecting wall member 7. This is configured so as to be surely led out to the convergence chute 8 side while preventing the occurrence of the vibration.

The convergent chute 8 has an upper end integrally fixed to the reflecting wall member 7 and hangs downward from the lower end of the reflecting surface 7A of the reflecting wall member 7 so as to be inclined obliquely backward. The lower end faces the upper central part of the upper surface of the spraying disk 4c of the spraying device 4. The convergent chute 8 is curved backward in an arc shape from the center to the both side edges, thereby forming an inclined rear surface on the gutter-shaped convergent guide surface 8A. Further, the convergence guide surface 8A is configured to be largely curved so as to gradually become narrower from the upper end to the lower end, so that the wet antifreeze agent A 'is converged in the width direction.

The solution jet nozzle 6 for jetting and flowing the solution B into the inclined chute 5 in a layered manner in the mixing apparatus constructed as above is disposed along the entire upper edge of the inclined chute 5 and fixed. 6A, a large number is provided at small intervals in the length direction, and the injection angle is the same as the inclination angle of the inclination of the inclined chute 5 so that the solution is ejected in a direction parallel to the inclined chute 5. I have.

One end of the solution supply pipe 6A is closed and a solution supply hose 10 is connected to the other end, and the solution supply hose 10 is installed on the rear end of the chassis 1a of the spraying car body 1. Connected to the discharge port of a solution pump 12 driven by a hydraulic motor 11. A plurality of solution tanks 9 are installed on the undercarriage 1a on both sides of the hopper 2 so as to communicate with each other. A connection between the solution tank 9 and the suction port of the solution pump 12 is connected to a solution supply pipe 13. The solution pump 12 is configured to supply the solution in the solution tank 9 to the solution supply pipe 6A.

The supply of the solution to the solution tank 9 may be performed through an inlet which is openably and closably closed by a lid provided at the upper end of the solution tank 9, but as shown in FIG. An injection pipe 15 which can be opened and closed by a valve 14 is provided on the front surface of the injection pipe 15, and a hose (not shown) for feeding a solution from a solution supply source is connected to the open end of the injection pipe 15.

Further, a cylinder is provided on the rear end of the conveyor 3 for conveying the deicing agent A in a dry state rearward.
A gate 17 that moves up and down by 16 is provided, and the degree of opening and closing of the gate 17, that is, the space between the lower end of the gate 17 and the transport surface of the transport conveyor 3 is changed so that freezing supplied to the spraying device 4 is performed. The supply amount of the inhibitor A is configured to be adjusted. On the other hand, the supply amount of the solution B is
It is adjusted by the number of rotations of 12.

In order to spray the wet deicing agent A 'on the road surface by using the wet deicing agent spraying vehicle constructed as described above, first, dry powdered salt or chloride is added to the deicing agent storage hopper 2. A solution such as water or salt water is stored in the solution tank 9 while the antifreezing agent made of calcium is charged and stored. Then, in order to spray the moist antifreeze agent A 'on the road surface, the transport conveyor 3 is operated to transport the antifreeze agent A in the hopper 2 backward and drop onto the inclined chute 5 from the transport end, The solution B is sprayed onto the inclined chute 5 from a number of spray nozzles 6 arranged along the upper end of the inclined chute 5 to form a layered solution flow on the inclined chute 5.

As shown in FIG. 3, the deicing agent A in a dry state falls on the solution B flowing down in a layer form from the transport end of the transport conveyor 3 and enters the solution B at the same time as the solution B.
Flows on the inclined chute 5 integrally with the solution B toward the lower end of the inclined surface, and flows out of the inclined lower end of the inclined chute 5 into the upper end opening of the reflecting wall member 7 formed of a rectangular cylindrical body. 7 collides with the vertical reflecting surface 7A. Since the inclined chutes 5 are integrally provided with the side plates 5a, 5a, there is no possibility that the antifreeze A or the solution B leaks from the inclined chutes 5 to the outside.

The anti-freezing agent A is applied to the reflecting surface 7A of the reflecting wall member 7.
When the solution and the solution B flow, the antifreeze agent A and the solution B are mixed while being uniformly dispersed while being reflected and diffused in a direction opposite to the inclination direction of the inclined chute 5, that is, obliquely downward. As a result, the solution B adheres to and penetrates the cryoprotectant A, and the cryoprotectant A is entirely wetted. The antifreezing agent A and the solution B flow down onto the gutter-shaped converging guide surface 8A of the converging chute 8 while being diffused and mixed, and are gathered toward the central portion of the converging guide surface 8A, so that the antifreezing agent A And the solution B are uniformly mixed to form a wet deicing agent A ′, which is further gathered while flowing down the convergence guide surface 8A inclined obliquely backward toward the lower end, and sprayed from the lower end of the convergence chute 8 by the spraying device 4. Of the antifreeze agent A 'is sprayed on the road surface by the rotation of the spraying disk 4c.

As described above, primary mixing is performed by causing the anti-freezing agent A and the solution B to flow and diffuse on the reflection surface 7A of the reflection wall member 7, thereby forming a gutter-like shape gradually narrowing toward the lower end. The secondary mixing is performed by the convergence guide surface 8A of the inclined convergence chute 8 to spray the antifreeze agent A onto the road surface while the wet antifreeze agent A 'is uniformly impregnated with the solution B. The mixing ratio of the deicing agent A and the solution B in a dry state is such that if the solution B is mixed with the antifreezing agent A at a weight ratio of about 8 to 30%, the antifreezing agent A is sufficiently wetted. As described above, this mixing ratio is adjusted by adjusting the supply amount of the antifreezing agent A by the opening degree of the gate 17 and adjusting the supply amount of the solution B by the rotation speed of the solution pump 12. This is done by:

[0026]

As described above, according to the apparatus for mixing a deicing agent and a solution in the antifreezing agent spraying vehicle of the present invention, the dried antifreezing agent is dropped from the conveying means between the conveying means and the spraying device. A slanting chute that receives the antifreezing agent and guides the slanting downward, a spray nozzle that sprays the solution in a layered manner from above along the slanting chute, and a slanting chute downward from the lower end of the slanting chute. The anti-freezing agent and the solution that flow down from the reflecting wall member are mixed by mixing and diffusing the anti-freezing agent and the solution, and the reflecting wall member between the lower end of the reflecting wall member and the spraying device. Since a converging chute for converging the diffused wet deicing agent in the width direction is provided, the structure can be manufactured simply and inexpensively, and a ready-made antifreezing agent dispersing vehicle equipped with a dispersing device is provided. Can be easily mounted, also,
The maintenance and inspection are easy, and of course, the solution is jetted in a layer from the injection nozzle onto the inclined chute, and the antifreezing agent is dropped from the transport means onto the layered solution. On the other hand, an antifreezing agent can be mixed so as to be in a uniform distribution state over the inclined chute.

Further, since the solution and the antifreeze are caused to flow and diffuse on the reflecting wall member by the flow of the solution on the inclined chute, the antifreeze and the solution are made uniform by the diffusion. It can be dispersed and mixed, and when it flows down onto the converging chute arranged below the reflecting wall member, it is gathered toward the center of the converging chute and the solution is sufficiently mixed with the deicing agent. , Which can be infiltrated.

[0028] In the mixing device of the antifreeze and the solution in the antifreeze spraying vehicle, the invention according to claim 2 is as follows.
Since the above-mentioned reflecting wall member is constituted by the rectangular cylindrical body whose upper and lower ends are open and the inner surface of the vertical front wall plate is formed on the reflecting wall surface, the antifreeze and the solution flowing down from the inclined chute do not leak to the outside. The anti-freezing agent and the solution can be surely diffused and mixed in the rectangular cylindrical body by being introduced into the rectangular cylindrical body and being able to be surely diffused and mixed in the rectangular cylindrical body by the reflecting wall surface formed on the inner surface of the vertical front wall plate of the rectangular cylindrical body. In addition, it is possible to obtain a wet anti-freezing agent in which the anti-freezing agent and the solution are uniformly mixed by allowing the anti-freezing agent and the solution to uniformly flow down after being diffused.

According to the third aspect of the present invention, the guide surface of the antifreeze agent of the converging chute is curved rearwardly from the center in the width direction toward both side edges and from the upper end. Since the guide surface is gradually narrowed toward the lower end and the guide surface is inclined from the upper end to the lower end, the deicing agent and the solution are kept in the center of the convergent chute even while the convergent chute is flowing down. Can be sufficiently mixed while gathering toward the part side, and the moist deicing agent can be accurately sent out from the narrow downward inclined end of the converging chute onto the spraying disc of the spraying device, and smoothly and uniformly on the road surface. It can be sprayed.

[Brief description of the drawings]

FIG. 1 is a simplified perspective view of a deicing agent spraying vehicle seen from the back side.

FIG. 2 is a side view of the main part,

FIG. 3 is a longitudinal side view of a mixing device,

FIG. 4 is a rear view thereof,

FIG. 5 is a simplified side view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Spreader car body 2 Hopper 3 Conveyor 4 Sprayer 5 Inclined chute 6 Injection nozzle 7 Reflective wall member 7A Reflective surface 8 Convergent chute

Claims (3)

[Claims] 1. An antifreezing agent storage hopper installed on a body of a spraying vehicle, a transporting means for the antifreezing agent supplied from the antifreezing agent storing hopper, and a spraying device for spraying the antifreeze sent out from the transporting means. And a tilting chute for receiving the antifreezing agent dropped from the transporting means and guiding it obliquely downward between the transporting means and the spraying device. Equipped with a spray nozzle that sprays the solution in layers from above along the top,
Further, a reflecting wall member is provided which is used as a wet anti-freezing agent by flowing and spreading the anti-freezing agent and the solution flowing down from the lower end of the tilting chute from the tilting chute and mixing them. A convergence chute for converging in the width direction the wet antifreeze diffused by the reflecting wall member between the lower end of the wall member and the above-mentioned spraying device is provided. Mixing device for agent and solution. 2. The reflecting wall member comprises a rectangular cylinder having upper and lower ends opened and a vertical front wall inner surface formed on a reflecting wall, and is inclined obliquely forward into an upper end opening of the rectangular cylinder. The antifreeze spray vehicle according to claim 1, wherein a lower end portion of the inclined chute is inserted, and a lower end edge thereof is opposed to the rear wall of the rectangular cylindrical body at a predetermined interval. Mixing device for antifreeze and solution. 3. The convergent chute has a guide surface of the anti-freezing agent curved in an arc shape rearward from the center in the width direction toward both side edges, and gradually guides the guide surface from the upper end to the lower end. 3. A mixing device for a deicing agent and a solution in a deicing agent spraying vehicle according to claim 1, wherein the mixing surface is formed narrow and the guide surface thereof is inclined from the upper end to the lower end. .