JPH09195242A - Spraying method of antifreezing agent, and spraying vehicle thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dispense with a solution tank, a solution supplying motor, and a piping when a solution is mixed to an antifreezing agent in dry state to prepare a wet antifreezing agent in a wet type antifreezing agent spraying vehicle. SOLUTION: A hopper 2 watertightly formed is set on a spraying car body 1, and an antifreezing agent in dry state and a solution which are preliminarily prepared in a prescribed weight ratio are successively put into the hopper 2 to thoroughly penetrate and diffuse the solution into the antifreezing agent, whereby a wet antifreezing agent is prepared within the hopper 2. This wet antifreezing agent is carried out of the hopper 2 in a carrying quantity according to spraying quantity by a screw conveyor 3 provided on the inner bottom surface of the hopper 2, and sent to a rotating spraying disc 9b through a shoot 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for spraying an antifreezing agent in a wet state on a road surface, and an improvement of a wet application vehicle for the method.

[0002]

2. Description of the Related Art Conventionally, in winter, an anti-freezing agent has been sprayed on ice and snow road surfaces in order to prevent the road surface from freezing. There are two methods of spraying the antifreezing agent, a dry spraying method in which dry salt is sprayed as it is and a wet spraying method in which a wet antifreeze agent is sprayed by adding a solution such as salt water to the salt. Among these methods, as a spraying vehicle for spraying a wet antifreezing agent, as shown in FIG. 6, an antifreezing agent transport conveyor B is provided below a hopper A that receives a dry antifreezing agent. The anti-freezing agent sent from the lower end of the opening of the hopper A is received on the conveyor B, and the anti-freezing agent is conveyed to the rear of the spraying vehicle and dropped from the end of the conveyor B. Shoot C
While being dropped onto the rotating spraying disc D through, a wetting agent spraying device E is disposed obliquely above the spraying disc D, and the solution is sprayed from the chute C toward the antifreezing agent that drops,
It is widely known to have means adapted to humidify the antifreeze.

Further, as described in Japanese Utility Model Publication No. 7-48743, a casing in which a stirring device is installed is disposed between the antifreezing agent conveyer and the hopper, and the dry antifreezing agent is placed in the casing. A spraying vehicle has also been developed in which a solution is supplied to and mixed with and moistened, and the wet antifreezing agent is discharged onto a spraying disk and sprayed.

[0004]

However, in any of the wet anti-icing agent spray vehicles described above, after the dry anti-freezing agent introduced into the hopper is transported backward from the hopper via the transport conveyor, the solution is applied on the spraying disc side. It is necessary to install a solution tank on the spray car, as well as to install a solution supply pump and a solution supply pipe to the spray disk side, and to dry the solution. There is a problem in that the apparatus as a whole becomes complicated and expensive because it requires means for controlling the amount of the solution added to the antifreezing agent.

The present invention has been made in view of the above problems, and it is possible to prepare a wet antifreeze agent easily and accurately without the need for a solution supply pump, piping, addition amount control means, and the like. (EN) A method for spraying an antifreezing agent and a spray vehicle for the same, which are intended to enable smooth spraying work.

[0006]

In order to achieve the above object, a method for spraying an antifreezing agent according to the present invention comprises a dry powdery granule antifreezing agent in an antifreezing agent containing hopper installed in a spraying car body and the antifreezing method. Prepare a wet antifreezing agent by adding a wetting solution of the agent and permeating the solution into the antifreezing agent in the hopper, and spraying the wet antifreezing agent by a conveyer conveyor arranged at the inner bottom of the hopper. It is characterized in that it is sent to a spraying device arranged at the rear end of the vehicle body and sprayed.

The anti-freezing agent spraying vehicle for carrying out this method is provided with a water-tightly formed anti-freezing agent storage hopper for receiving the anti-freezing agent and the solution in the main body of the spraying vehicle, and at the bottom of the storage hopper. A transport conveyer for the antifreezing agent wetted by permeation of the solution is disposed from the front end to the rear end, and the transport end of the transport conveyer is communicated with a chute disposed at the rear end of the spraying car body. The structure has a structure in which the lower end of the opening of the chute is exposed to the spraying device arranged at the lower rear end of the spraying vehicle main body.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The antifreezing agent containing hopper installed in the main body of the spraying car has its four-sided peripheral wall and bottom wall formed watertight, and the bottom wall expands toward the lower end of the four-sided peripheral wall. It is formed in an inverted pyramid shape. A cylinder that is the starting end of the conveyance is installed by fixing the screw conveyor, which has rotating screw blades in the cylindrical casing along the rear inner bottom surface of the bottom wall portion, in an inclined state with the conveyance end side facing upward, and is fixed. The inlet opening at the upper peripheral portion of the inclined lower end of the cylindrical casing is communicated with the bottom of the hopper, while the inclined upper end portion, which is the transport end portion, is projected rearward from the hopper and opened at the lower peripheral portion of the cylindrical casing. The discharge port is connected to and communicates with the upper end opening of the cylindrical chute arranged on the rear end side of the spray car body, and the lower end of the opening of the cylindrical chute is connected to the rear end part of the spray car body by its vertical axis. Is exposed to the upper side of a spraying device composed of a rotary spraying disk rotatably supported.

The weight of the antifreezing agent in the dry state and the solution of water or salt water to be added to the antifreezing agent are set in advance so as to have a predetermined mixing ratio before being put into the storage hopper. A desired wet antifreezing agent can be obtained by setting the mixing ratio of the antifreezing agent and the solution to an appropriate amount of 30% or less by weight of the solution. When the antifreezing agent and the solution set to this weight ratio are sequentially charged into the storage hopper, the solution permeates and diffuses into the antifreezing agent, and the entire antifreezing agent becomes a uniform wet state in the storage hopper.

When the screw blades of the screw conveyor are driven to rotate in this state, the wet antifreezing agent enters the intake of the screw conveyor facing the bottom of the hopper,
It is conveyed upward along the inclined wall surface of the storage hopper by the screw blades, falls through the discharge port of the screw conveyor protruding from the storage hopper to the cylindrical chute, is supplied onto the spraying device, and is distributed to the road surface by the spraying device. It is scattered.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, specific embodiments of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 denotes a main body of a spraying vehicle, on which an antifreezing agent containing hopper 2 is mounted and installed. The upper end of the peripheral wall of the hopper 2 is a rectangular peripheral wall portion.
2a and a bottom wall portion 2b that is continuous with the lower end of the four-way peripheral wall portion 2a
Is formed in an inverted pyramid shape that widens from the lower end toward the upper end, and the peripheral wall portion 2a and the bottom wall portion 2b are entirely watertight. Further, in the bottom wall portion 2b, the bottom wall rear portion is formed as an inclined inner bottom surface 2c having a gentler inclination angle with respect to the horizontal plane than the bottom wall front portion.

Reference numeral 3 denotes an inner bottom surface of the bottom wall portion 2b of the hopper 2 which is inclined rearward.
With the screw conveyor arranged and fixed on the 2c, the rotating screw blades 3b are placed in the cylindrical casing 3a as shown in FIG.
The cylindrical casing 3a is provided in an inclined state upward from the deepest portion of the bottom wall portion 2b of the hopper 2 along the inclined inner bottom surface 2c, and the inclined upper end portion of the cylindrical casing 3a is The rear side wall of the hopper 2 at the upper end of the inclined inner bottom surface 2c penetrates in a watertight manner and projects rearward. The screw blades 3b of the screw conveyor 3 are spirally attached to a central shaft 3c, and the central shaft 3c is a cylindrical casing 3a.
Bearings 3d and 3e mounted on the lid plate that closes the openings on both ends of
It is rotatably supported by the cylindrical casing 3a.
It is rotated by the rotary drive motor 4 arranged on the upper end side of the inclination of.

Further, the cylindrical casing of the screw conveyor 3 located at the deepest portion of the bottom wall portion 2b of the hopper 2.
An inlet 6 for the wet antifreezing agent 5 is provided at the upper peripheral portion of the inclined lower end of 3a, while an outlet 7 is provided at the lower peripheral portion of the inclined upper end of the cylindrical casing. The upper end opening of the cylindrical chute 8 is connected to and communicates with the discharge port 7, and the lower end of the opening of the cylindrical chute is brought close to above the spraying device 9 arranged at the rear end of the spraying car body 1. I am facing. The spraying device 9 is formed by integrally fixing the center of a spraying disc 9b to the lower end of a vertical rotation shaft 9a that is rotatably supported at the rear end of the spraying vehicle main body 1, and has a plurality of spraying blades 9c. The discharge lower end of the chute 8 is made to face the upper surface of the distribution disk 9b which is radially projected.

A guide chute 10 fixed to the rear end of the spray car body 1 is interposed between the lower end of the opening of the cylindrical chute 8 and the spraying device 9, and the guide chute 10 prevents wet freezing. The agent 5 is configured to be accurately discharged to a predetermined portion on the application disc 9b of the application device 9. In addition,
As shown in FIGS. 3 and 4, the screw conveyor 3 has two
Basically, they are arranged in parallel, but a single screw conveyor may be used.

In order to spray the wet antifreezing agent 5 on the road surface by using the wet antifreezing agent spraying vehicle thus constructed, first, the freezing agent made of powdered dry salt agent is frozen in the antifreezing agent containing hopper 2. The anti-freezing agent and a solution to be mixed with the anti-freezing agent in a constant weight ratio are added. This input order is
After the solution is put into the hopper 2, the antifreezing agent may be put in. However, it is preferable to put the solution so that it is evenly poured on the upper surface of the antifreezing agent after the antifreezing agent is put. . Although salt water may be used as the solution, water is sufficient, and water is used also in this example.

The mixing ratio of the dry powdery antifreezing agent and the solution is 8 to 30% by weight of the solution to the antifreezing agent.
The antifreezing agent can be sufficiently moistened by mixing the antifreezing agent. After the antifreezing agent is put into the hopper 2, when the prepared solution of the above ratio is added to the weight of the antifreezing agent, the solution permeates and diffuses into the antifreezing agent, and the antifreezing agent is quickly supplied. Wet evenly.

When the wet antifreezing agent 5 is prepared in the hopper 2 and the motor 4 is driven in the state of being housed in the hopper 2, the screw blades 3b of the screw conveyor 3 rotate and settle in the intake port 6 by weight. Wet antifreezing agent 5
Is conveyed to the discharge port 7 through the inside of the cylindrical casing 3a, dropped from the discharge port 7 to the chute 8 and dropped from the lower end of the opening of the chute 8 onto the spray disc 9b of the spray device 9, and by the rotation of the spray disc 9b. The wet antifreeze agent 5 is sprayed on the road surface. The amount of the wet anti-freezing agent 5 conveyed by the screw conveyor 3 is adjusted by the amount of spraying on the road surface, the spraying width of the road surface, and the speed of the spraying car body 1.

In the above embodiment, the screw conveyor 3 is arranged on the inner bottom of the hopper 2, but it may be arranged on the outer bottom as shown in FIG. That is, the opening 2d is provided at the deepest portion of the bottom wall 2b of the hopper 2, and the opening 2d
2d is connected to and communicates with the intake port 6 that is open at the upper peripheral portion of the inclined lower end of the screw conveyor 3, and the screw conveyor 3 is obliquely upward from the front end to the rear end along the outer surface of the inclined inner bottom surface 2c. It is fixed to the hopper 2 by a connecting fitting 11 in a tilted state, and a chute 8 is connected and communicated with the downward discharge port 7 of the inclined upper end of the cylindrical casing 3a. Other configurations are the same as in the above embodiment. In addition,
In the above examples, the screw conveyor 3 is used as the conveyor arranged on the inner bottom surface of the hopper 2, but any conveyor such as a slat conveyor, a flight conveyor, or the like capable of carrying the wet antifreezing agent may be used.

[0019]

As described above, according to the present invention, since the dry antifreezing agent and the solution are charged into the water-tightly formed storage hopper, the weight ratio of the antifreezing agent and the solution is adjusted before charging. By setting it, the desired wet antifreeze agent can be easily prepared in the storage hopper.Therefore, the solution tank, solution supply pipe, piping, etc. provided in the conventional antifreeze sprayer are installed. Can be unnecessary,
The entire apparatus can be simplified to provide an economical antifreeze spraying vehicle.

Further, by disposing a screw conveyor on the inclined inner bottom portion in the storage hopper, by adjusting the rotation speed of the screw conveyor, the amount of spraying on the vehicle speed, the road surface, and the amount of wet freeze prevention according to the road surface width can be prevented. The agent can be sent out to the spraying device side, and its adjustment is easy and efficient spraying is possible.

[Brief description of the drawings]

FIG. 1 is a simplified side view in which a part of an antifreeze spraying vehicle is sectioned,

FIG. 2 is an enlarged vertical side view of the main part,

FIG. 3 is a simplified plan view of an antifreeze spraying vehicle,

FIG. 4 is a rear view thereof,

FIG. 5 is a simplified vertical sectional side view showing a state in which the screw conveyor is arranged on the outer bottom surface side of the hopper,

FIG. 6 is a simplified side view showing a conventional example.

[Explanation of symbols]

 1 spray car body 2 storage hopper 2c inclined inner bottom surface 3 screw conveyor 8 chute 9 spraying device

Claims (3)

[Claims] 1. A wet antifreezing agent is prepared by introducing the antifreezing agent and a solution into a hopper containing an antifreezing agent installed in a main body of a spraying vehicle and allowing the solution to penetrate into the antifreezing agent in the hopper. A wet anti-freezing agent spraying method, which comprises sending a wet anti-freezing agent to a spraying device provided at the rear end of a spraying vehicle main body by means of a conveyer provided at the bottom of a hopper and spraying it. 2. A watertightly formed antifreezing agent storage hopper for receiving an antifreezing agent and a solution is installed in a spray car body,
At the bottom of the accommodating hopper, a transport conveyer for the antifreezing agent wetted by the permeation of the solution is provided from the front end to the rear end, and the transport end of the conveyer is provided at the rear end of the spray car body. An antifreezing agent spraying vehicle, characterized in that it is communicated with a chute, and the lower end of the opening of the chute is exposed to a spraying device arranged at the lower rear end of the spraying vehicle main body. 3. The bottom half of the bottom surface of the antifreezing agent storage hopper is formed on an inclined wall surface which is inclined obliquely upward toward the rear, while the transfer conveyor is provided with rotary screw blades in a cylindrical casing. It consists of a screw conveyor, the screw conveyor is arranged along the inclined wall surface, and the inlet provided in the upper peripheral portion of the downward inclined end portion of the cylindrical casing of the screw conveyor is the deepest part of the bottom of the antifreezing agent containing hopper. The freezing prevention according to claim 2, wherein the upper end opening of the chute is connected to and communicates with a discharge port provided at a lower peripheral portion of an upper inclined end portion of the cylindrical casing while communicating with the upper portion. Agent spray car.