JPH0633356B2 - Snow melting suppression foam production equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention has a heat insulating property of suppressing snow melting by coating the snow surface in order to preserve a large amount of snow that has fallen in winter so as not to melt until summer. The present invention relates to an improvement in a snow melting suppression foam manufacturing apparatus.

[Conventional technology]

Conventionally, as a method for long-term storage of a large amount of snowfall in winter until summer, there has been a method of suppressing snow melting by covering the snow surface with straw, chaff, styrofoam, heat insulating sheet, etc. Long-term preservation of snow cover in this way is difficult and, if possible, enormous.

Therefore, the applicant is the Japanese Patent No. 1452592, Japanese Patent Application No. 59.
As described in No. -75579, the inventors have invented a snow melting suppression foam that suppresses snow melting by coating the snow surface with a snow melting suppression foam containing gelatin as a main component.

Further, the applicant has invented a device for producing snow-melting suppression foam that simplifies and continuously manufactures such snow-melting suppression foam (Japanese Patent Application No. 62-62).
-215676).

This invention rotates the rotary blades made of a net provided on the upper surface of a foam screen such as a perforated plate to stir the bubbles generated by sending air below the liquid surface of the stock solution, and stirs the resulting bubbles to discharge the bubbles further upward. It was a device that spouted from the section and connected a hose etc. to this foam discharge section to discharge and cover snow.

[Problems to be Solved by the Invention]

However, although the conventional device subdivides the foam and spits it out, it only guides it with a hose to the spraying site and sprays it.Therefore, if the spraying place is far from the foam manufacturing site, the subdivided foam will gradually increase or liquefy. Or lose uniformity.

In addition, since the stirring section was a rotary blade formed with four mesh plates with a gap of 90 °, the subdivision of the foam was not yet sufficient, and the heat-insulating effect of the snow-melting suppression foam discharged to that extent and the snow cover The coating strength was still insufficient.

On the other hand, if air is slowly supplied to rotate the rotary blades at a high speed, it is very inefficient and economically disadvantageous.

The present invention provides a snow melting suppression foam manufacturing apparatus that solves these drawbacks.

[Means for Solving the Problems]

 The gist of the present invention will be described with reference to the accompanying drawings.

A stock solution supply connection part 2 for supplying the stock solution to the storage cylinder 1 and an air supply connection part 3 for supplying air below the liquid surface of the stock solution to be stored are provided, and the air is supplied to the storage cylinder body 1 by the supply of air. A snow-melting suppression foam production body a provided with a foam sieving plate 4 for subdividing the generated foam into fine bubbles, and a foam discharge unit 6 for discharging the subdivided foam, and a rotating body 5 in the discharge cylinder 10. The rotating blades 8 are arranged radially around the rotating body 5 with a predetermined gap therebetween, and the fixed blades 9 located between the rotating blades 8 arranged side by side are arranged on the inner circumference of the discharge cylinder 10. Bubbles sent from the manufacturing body a are arranged in a reverse radial pattern on the surface of the discharge cylinder 10.
A foam discharger b provided with an introduction part 11 to be introduced into the discharge cylinder 10 and a rotation drive part 12 for rotating the rotating body 5 on the discharge cylinder 10, a foam discharge part 6 of the manufacturing body a, and the foam discharger. The present invention relates to a snow melting suppression foam manufacturing apparatus, which is characterized by comprising a connecting pipe body c that connects the introducing portion 11 of b.

[Work]

For example, an undiluted solution obtained by adding a small amount of saponin (which may be animal protein), which is a good foaming material, to an aqueous solution containing gelatin as a main component, which is produced by the production method of Japanese Patent Application No. 59-75579, is used. Then, this stock solution is supplied to the bottom portion of the storage cylinder 1 by the stock solution supply connection part 2, and air is supplied from the air supply connection part 3 below the liquid surface of the stored stock solution, and the supplied air is the stock solution. It rises as bubbles in the room.

This foam is finely divided when passing through the foam sieving plate 4.

This thin foam is introduced into the discharge cylinder 10 of the foam discharger b via the connecting pipe c connected to the foam discharge unit 6, and is agitated by the stirring unit by the rotation of the rotating body 5 in the discharge cylinder 10. Alternatively, it is cut and further subdivided. By continuously supplying air in this state, new bubbles are continuously generated and push up the previously formed bubbles upward, so that the bubbles are discharged to the outside from the bubble discharge section 20 at the tip of the discharge cylinder 10, and the bubbles are discharged. Apply or spray on the snow surface.

〔Example〕

1 and 2 show a preferred embodiment of the invention.

The drawing shows a case where an electric motor is adopted as the rotation drive unit 12 for rotating the rotating body 5.

The rotary blades 8 and the fixed blades 9 are illustrated as rod-shaped comb blades, respectively, and the discharge cylinder 10 and the rotary body 5 can be divided and disassembled at predetermined intervals. It is illustrated that the height can be adjusted and thus the number of blade stages of the rotary blade 8 and the fixed blade 9 can be adjusted.

As shown in FIGS. 2 and 3, FIG.
Using the present invention in which two rotary blades 8 and six fixed blades 9 are arranged, the rotary body 5 is set to 1500 rpm, the air supply amount is set to 60 / min, and the number of blade stages and the average data of several pieces are obtained. The experimental data showing the relationship with the diameter of the formed bubbles are shown, which proves that if the number of blade stages is 5 or more, it becomes a very finely divided and uniform bubble of about 1 mm. .

The drawing shows a case in which an extra stock solution discharge pipe 13 is provided above the stock solution supply connection part 2 in order to always store a fixed amount of stock solution, and the air supply connection part 3 supplies air to the stock solution level. The case where it is provided below the connecting portion 2 for supplying the undiluted solution in order to supply it downward is shown.

The foam sieving plate 4 is shown as a case where a perforated plate is adopted and provided in two stages in the storage cylinder body 1, and in the figure, reference numeral 14 is a reinforcing bar connecting the two stages of the foam sieving plate 4, Is a stock solution storage unit.

Further, reference numeral 16 in the drawing is a joint case for connecting the housing cylinder 1 and the connection pipe body c adopting the flexible connection hose, 17 is a mounting bolt thereof, and 18 is a discharge angle provided in the bubble discharging portion 20. An adjustable hood, 19 is a handle provided on the discharge cylinder 10.

It should be noted that a foam injection port may be provided in the discharge cylinder 10 that houses the stirring section, and formalin or the like that enhances the preservability of the foam may be injected from here.

〔The invention's effect〕

As described above, according to the present invention, since the foam emitting body is provided separately from the manufacturing body and the manufacturing body and the foam emitting body are connected by the connecting pipe body, the foam emitting body can be freely placed in a spraying place apart from the manufacturing body. You can take it, even if it is quite remote, just before spraying, the foam can be evenly subdivided by the stirring unit consisting of the rotary vane and the fixed vane inside the body, and can be sprayed in the subdivided place as it is. The apparatus for producing a snow-melting suppressing foam is capable of spraying the foam with the foam subdivided and maintaining the uniformity, and capable of exerting a good effect of suppressing the snow-melting suppressing foam.

Further, in order to stir or cut the bubbles by the rotating blades radially arranged in parallel on the rotating member and the fixed blades provided on the discharge cylinder in the reverse radial position between the rotating blades,
Since the bubbles are extremely miniaturized and uniform, the snow melting suppressing foam manufacturing apparatus can manufacture the snow melting suppressing foam having a high heat insulating effect and a high covering strength on the snow surface.

[Brief description of drawings]

The drawings show one embodiment of the present invention. FIG. 1 is a perspective view thereof, FIG. 2 is a sectional view of an essential part, FIG. 3 is a sectional view taken along the line AA, and FIG. It is an experimental data graph which shows the relationship with the diameter of a bubble. 1 ... Storage cylinder, 2 ... Connection part for supplying undiluted solution, 3 ... Connection part for air supply, 4 ... Foam sifter plate, 5 ... Rotating body, 6 ...
… Bubble discharge part, 8 …… Rotating blade, 9 …… Fixed blade, 10 ……
Discharge cylinder, 11 ... Introducing section, 12 ... Rotation drive section, a ... Manufacturing body, b ... Foam discharging body, c ... Connection tube body.

Claims (1)

[Claims] Claims: 1. A stock solution supply connection part for supplying a stock solution to an accommodating cylinder and an air supply connection part for supplying air below the liquid surface of the stock solution to be contained, which are generated by the supply of air into the accommodating cylinder. A snow melting suppression foam manufacturing body provided with a foam sieve plate for subdividing the generated foam into fine bubbles, and a foam discharge unit for discharging the subdivided foam, and a rotating body arranged in the discharge cylinder, and this rotating body The rotating blades are radially arranged in parallel with each other with a predetermined gap around the fixed blades, and fixed blades located between the rotating blades arranged in parallel are reversely radially arranged on the inner peripheral surface of the discharge cylinder. A foam discharger provided with an introduction part for introducing the foam sent from the body into the discharge cylinder, and a rotation drive part for rotating the rotating body on the discharge cylinder, the foam discharge part of the manufactured body and the foam discharge And a connecting pipe body for connecting the body introduction part, Apparatus for manufacturing a suppression foam.