JP3784627B2 - Wet spraying device - Google Patents

Wet spraying device Download PDF

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Publication number
JP3784627B2
JP3784627B2 JP2000286483A JP2000286483A JP3784627B2 JP 3784627 B2 JP3784627 B2 JP 3784627B2 JP 2000286483 A JP2000286483 A JP 2000286483A JP 2000286483 A JP2000286483 A JP 2000286483A JP 3784627 B2 JP3784627 B2 JP 3784627B2
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Prior art keywords
mixture
air
tank
mixing
ejector
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JP2002088731A (en
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誠 布部
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Tcm株式会社
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Description

【0001】
【発明の属する技術分野】
本発明は、例えば走行車両に装設されて凍結防止剤や骨材等の粉粒体(薬剤)と水等の液体(溶液)とを混合させて道路等に散布する湿式散布装置の改良に関する。
【0002】
【従来の技術】
従来、この種の湿式散布装置としては、例えば特公平7−48743号や特開平10−237838号や特開平11−222827号に記載されたものが知られている。
当該湿式散布装置は、基本的には、粉粒体を貯留するホッパと、液体を貯溜するタンクと、ホッパからの粉粒体とタンクからの液体を混合する混合手段と、回転駆動機に依り回転されて混合手段からの混合物を周囲に散布する回転散布盤と、から構成されている。
【0003】
【発明が解決しようとする課題】
ところが、この様なものは、混合手段に依り粉粒体と液体とが単に合流することで混合されていただけであったので、混合が不十分で、かつ混合液粒子が荒いため路面との吸着性が悪く、しかも遠心力で飛ばすため大きい粒子だけが遠く飛ぶので均一な散布が行なえなかった。
本発明は、叙上の問題点に鑑み、これを解消する為に創案されたもので、その課題とする処は、路面との吸着性を向上させ、かつ均一な散布が行なえる湿式散布装置を提供するにある。
【0004】
【課題を解決するための手段】
本発明の湿式散布装置は、基本的には、粉粒体を貯留するホッパと、液体を貯溜するタンクと、ホッパからの粉粒体とタンクからの液体を混合する混合手段と、混合手段からの混合物を圧縮空気に依り粉砕して噴射させる空気エゼクタと、空気エゼクタからの混合物を衝突させて周囲に散布させる静止散布盤と、から構成した事に特徴が存する。
【0005】
ホッパに貯留された粉粒体とタンクに貯溜された液体は、混合手段に送られて混合される。混合された混合物は、空気エゼクタに送られて圧縮空気に依り粉砕されて噴射される。粉砕されて噴射された混合物は、静止散布盤に衝突されて周囲に散布される。
粉粒体と液体とを単に混合させるだけでなく、空気エゼクタに依り混合した混合物を圧縮空気に依り粉砕する様にすると共に、これをベンチュリで加速させて更に微粒化し、かつ速度を増して噴射する様にしたので、散布される混合物が相当微細化されるため、路面との吸着性が向上され、同時に噴射速度が速いので風に流される事もない。
【0006】
静止散布盤は、空気エゼクタに固定されていると共に、混合手段と空気エゼクタとの間には、散布方向を変える為の散布方向調節手段が設けられているのが好ましい。この様にすれば、構造を簡単化して容易に散布方向を変える事ができる。
【0007】
さらに、散布する混合物の飛距離を変えるため、圧縮空気の圧力、流量、又はベンチュリの内径を変えることによりエゼクタ内の流速を変化させても良い。
【0008】
【発明の実施の形態】
以下、本発明の実施の形態を、図面に基づいて説明する。
図1は、本発明の湿式散布装置の概要を示す縦断側面図。図2は、図1の要部縦断正面図。図3は、空気エゼクタ及び静止散布盤を傾動させた状態を示す要部縦断側面図である。
【0009】
湿式散布装置1は、ホッパ2、タンク3、混合手段4、空気エゼクタ5、静止散布盤6とからその主要部が構成され、走行車両100に装設される。
【0010】
ホッパ2は、粉粒体Aを貯留するもので、この例では、塩化カルシウム等の粉粒体Aの投入口と排出口を備えた漏斗状を呈し、走行車両100の車体101に設けられている。
【0011】
タンク3は、液体Bを貯溜するもので、この例では、水や塩化カルシウム溶液等の液体Bの注入口と排出口とを備えた容器状を呈し、走行車両100の車体101に設けられている。
【0012】
混合手段4は、ホッパ2からの粉粒体Aとタンク3からの液体Bを混合するもので、この例では、出入口を備えて入口がホッパ2の排出口に接続された混合槽7と、ホッパ2からの粉粒体Aの供給量を調節する開閉弁8と、タンク3からの液体Bを混合槽7内に噴射するノズル9と、混合槽7を貫通してノズル9とタンク3を連通させる配管10と、これの途中に設けられてタンク3からの液体Bの供給量を調節する開閉弁11と、混合槽内7に回転可能に設けられて粉粒体Aと液体Bを混合させる攪拌羽根12と、混合槽7の上部外側に設けられて攪拌羽根12を回転させるモータ13と、混合槽7内の混合物Cの貯留量を検出するインジケータ14と、混合槽7の出口に設けられて混合物Cの排出量を調節する開閉弁15とを備えている。
【0013】
空気エゼクタ5は、混合手段4からの混合物Cを圧縮空気Dに依り粉砕して噴射させるもので、この例では、出入口を備えてベンチュリ形を呈するディフューザ16と、これの内部に設けられて咽喉部に向けて圧縮空気Dを噴射する空気ノズル17と、これに圧縮空気Dを供給するコンプレッサ18と、ディフューザ16を貫通して空気ノズル17とコンプレッサ18を連通させる空気配管19と、これの途中に設けられてコンプレッサ18からの圧縮空気Dの供給量を調節する開閉弁20とを備えている。
【0014】
静止散布盤6は、空気エゼクタ5からの混合物Cを衝突させて周囲に散布させるもので、この例では、空気エゼクタ5のディフューザ16の出口から所定間隔を置いて対された円板状を呈する円板21と、これの上面に中心部を除いて放射状に配設されてディフューザ16の先部に固定された複数(四つ)の仕切板22とを備えている。
【0015】
而して、混合手段4と空気エゼクタ5との間には、混合手段4の混合槽7からの混合物Cを一時貯留すると共に、散布方向を変える為の散布方向調節手段23が設けられている。
散布方向調節手段23は、混合手段4の混合槽7の出口側が貫通された固定筒24と、これに横軸(図2に於て左右方向軸)廻りに回動可能に連通されて混合槽7の出口が開口されていると共に空気エゼクタ5のディフューザ16の入口が接続された可動筒25と、これを回動させるシリンダ26と、可動筒25の内部に設けられて空気エゼクタ5のディフューザ16への混合物Cの排出量を調節する開閉弁27とを備えている。散布方向調節手段23の固定筒24と可動筒25は、混合手段4の混合槽7からの混合物Cを一時貯留するサブタンクを為している。
【0016】
各開閉弁8,11,15,20,27は、混合手段4の混合槽7の混合物Cが所定量になれば、インジケータ14に依りこの事が検出されて制御器(図示せず)に依り開閉弁8,11が閉弁されると共に、開閉弁15,20,27が開弁される様になっている。
【0017】
次に、この様な構成に基づいてその作用を述解する。
ホッパ2に貯留された粉粒体Aは、開閉弁8を介して混合手段4の混合槽7に供給されると共に、タンク3に貯溜された液体Bも、開閉弁11を介して混合槽7に供給される。粉粒体Aと液体Bは、モータ13で駆動される攪拌羽根12に依り攪拌されて均一に混合され、開閉弁15を介してサブタンク(散布方向調節手段23の固定筒24及び可動筒25)内に流入される。
サブタンク内の混合物Cは、開閉弁27を介して空気エゼクタ5のディフューザ16に送られると共に、コンプレッサ18からの圧縮空気Dは、開閉弁20を介して空気ノズル17から噴射されてベンチュリー効果に依り空気流速が増加される。この為、混合物Cは、圧縮空気Dとの急激な混合に依り粉砕されてディフューザ16の先端から噴射される。粉砕されて噴射された混合物Cは、静止散布盤6の円板21上に衝突されて微粒化され、円板21に沿ってその外縁から周囲に散布される。
【0018】
粉粒体Aと液体Bとを単に混合させるだけでなく、空気エゼクタ5に依り混合した混合物Cを圧縮空気Dに依り粉砕する様にすると共に、これを静止散布盤6に衝突させて散布する様にしたので、散布される混合物Cが相当微細化されたものとなり、路面との吸着性が向上され、かつ噴射速度が早いので風に影響されることなく均一な散布を行なう事ができる。
【0019】
コンプレッサ18からの圧縮空気Dの圧力を加減すれば、微粒化した混合物Cの散布距離を可変する事ができる。
【0020】
図3に示す如く、散布方向調節手段23のシリンダ26に依り固定筒24に対して可動筒25を回動させれば、空気エゼクタ5及び静止散布盤6が傾動されて微粒化した混合物Cの散布方向を可変する事ができる。
【0021】
尚、静止散布盤6は、先の例では、空気エゼクタ5に固定したが、これに限らず、例えば他の固定側に固定しても良い。
散布方向調節手段23は、先の例では、混合手段4と空気エゼクタ5との間に固定筒24と可動筒25とから成る所謂回転管継手を介設したが、これに限らず、例えばこれらの間に可撓管を介設しても良い。
散布方向調節手段23は、先の例では、混合手段4に対して空気エゼクタ5を傾動させる様にしたが、これに限らず、例えば空気エゼクタ5に対して静止散布盤6を傾動させる様にしても良い。
【0022】
【発明の効果】
以上、既述した如く、本発明に依れば、次の様な優れた効果を奏する事ができる。
(1) ホッパ、タンク、混合手段、空気エゼクタ、静止散布盤とで構成し、とりわけ混合手段からの混合物を圧縮空気に依り粉砕して噴射させる空気エゼクタと、空気エゼクタからの混合物を衝突させて周囲に散布させる静止散布盤とを設けたので、粉粒体と液体との混合物が微粒化されて高速で散布され、路面との吸着性が向上される。その結果、道路の傾き加減に依り流される事がなく、均一な散布を行なう事ができる。
(2) 粉粒体と液体との混合物が微粒化されて高速で散布されるので、風の影響を受け難くなる。その結果、偏った散布になる事がない。
(3) 静止散布盤は、回転させる必要がないので、それだけ構造が簡単化されてコストの低減を図る事ができる。
【図面の簡単な説明】
【図1】本発明の湿式散布装置の概要を示す縦断側面図。
【図2】図1の要部縦断正面図。
【図3】空気エゼクタ及び静止散布盤を傾動させた状態を示す要部縦断側面図。
【符号の説明】
1…湿式散布装置、2…ホッパ、3…タンク、4…混合手段、5…空気エゼクタ、6…静止散布盤、7…混合槽、8,11,15,20,27…開閉弁、9…ノズル、10…配管、12…攪拌羽根、13…モータ、14…インジケータ、16…ディフューザ、17…空気ノズル、18…コンプレッサ、19…空気配管、21…円板、22…仕切板、23…散布方向調節手段、24…固定筒、25…可動筒、26…シリンダ、100…走行車両、101…車体、A…粉粒体、B…液体、C…混合物、D…圧縮空気。
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement of a wet spraying device that is installed in a traveling vehicle and sprays on a road or the like by mixing a granular material (medicine) such as an antifreezing agent or aggregate and a liquid (solution) such as water. .
[0002]
[Prior art]
Conventionally, as this type of wet spraying apparatus, for example, those described in Japanese Patent Publication No. 7-48743, Japanese Patent Application Laid-Open No. 10-237838, and Japanese Patent Application Laid-Open No. 11-222827 are known.
The wet spraying device basically depends on a hopper for storing powder particles, a tank for storing liquid, mixing means for mixing powder from the hopper and liquid from the tank, and a rotary drive. And a rotary spreader that is rotated to spread the mixture from the mixing means around.
[0003]
[Problems to be solved by the invention]
However, in such a case, since the powder and the liquid were simply mixed by the mixing means depending on the mixing means, the mixing was insufficient and the mixed liquid particles were rough so that they were adsorbed on the road surface. It was not good, and since only the large particles flew far away because of the centrifugal force, uniform spraying was not possible.
The present invention was devised in view of the above-mentioned problems, and was devised to solve this problem. The problem to be solved is a wet spraying device that improves the adsorptivity with the road surface and can perform uniform spraying. To provide.
[0004]
[Means for Solving the Problems]
The wet spraying device of the present invention basically includes a hopper for storing powder particles, a tank for storing liquid, a mixing means for mixing powder from the hopper and liquid from the tank, and a mixing means. It is characterized in that it is composed of an air ejector that pulverizes and injects the mixture with compressed air and a stationary spreader that collides the mixture from the air ejector and scatters it around.
[0005]
The granular material stored in the hopper and the liquid stored in the tank are sent to the mixing means and mixed. The mixed mixture is sent to an air ejector, pulverized by compressed air, and injected. The mixture that has been crushed and sprayed is collided with a stationary spreader and sprayed around.
In addition to simply mixing powder and liquid, the mixture mixed by an air ejector is pulverized by compressed air, and this is accelerated by a venturi to further atomize and increase the speed of injection. As a result, the mixture to be sprayed is considerably refined, so that the adsorptivity with the road surface is improved, and at the same time, the jet speed is fast so that it is not blown by the wind.
[0006]
Preferably, the stationary spreader is fixed to the air ejector, and a spraying direction adjusting means for changing the spraying direction is provided between the mixing means and the air ejector. In this way, the structure can be simplified and the spraying direction can be easily changed.
[0007]
Furthermore, in order to change the flying distance of the mixture to be dispersed, the flow velocity in the ejector may be changed by changing the pressure, flow rate, or venturi inner diameter of the compressed air.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a longitudinal side view showing an outline of a wet spraying apparatus of the present invention. FIG. 2 is a longitudinal front view of the main part of FIG. FIG. 3 is a longitudinal sectional side view of the main part showing a state in which the air ejector and the stationary spreader are tilted.
[0009]
The wet spraying apparatus 1 includes a hopper 2, a tank 3, a mixing unit 4, an air ejector 5, and a stationary spraying board 6, and main parts thereof are installed in the traveling vehicle 100.
[0010]
The hopper 2 stores the granular material A. In this example, the hopper 2 has a funnel shape including an inlet and an outlet for the granular material A such as calcium chloride, and is provided on the vehicle body 101 of the traveling vehicle 100. Yes.
[0011]
The tank 3 stores the liquid B. In this example, the tank 3 has a container shape including an inlet and an outlet for the liquid B such as water or calcium chloride solution, and is provided on the vehicle body 101 of the traveling vehicle 100. Yes.
[0012]
The mixing means 4 mixes the granular material A from the hopper 2 and the liquid B from the tank 3, and in this example, a mixing tank 7 provided with an inlet and outlet connected to the outlet of the hopper 2, An on-off valve 8 that adjusts the supply amount of the powder A from the hopper 2, a nozzle 9 that injects the liquid B from the tank 3 into the mixing tank 7, and the nozzle 9 and the tank 3 that pass through the mixing tank 7. A pipe 10 that communicates, an on-off valve 11 that is provided in the middle to adjust the supply amount of the liquid B from the tank 3, and is rotatably provided in the mixing tank 7 to mix the powder A and the liquid B A stirring blade 12 that is provided, a motor 13 that is provided outside the upper portion of the mixing tank 7 and rotates the stirring blade 12, an indicator 14 that detects the amount of the mixture C stored in the mixing tank 7, and an outlet of the mixing tank 7. And an on-off valve 15 for adjusting the discharge amount of the mixture C.
[0013]
The air ejector 5 pulverizes and injects the mixture C from the mixing means 4 with compressed air D. In this example, the air ejector 5 is provided with a venturi-shaped diffuser 16 having an inlet / outlet, and is provided inside the throat. An air nozzle 17 that injects compressed air D toward the part, a compressor 18 that supplies the compressed air D thereto, an air pipe 19 that passes through the diffuser 16 and communicates the air nozzle 17 and the compressor 18, And an on-off valve 20 that adjusts the supply amount of the compressed air D from the compressor 18.
[0014]
Static spraying board 6, by colliding a mixture C from the air ejector 5 intended to spread around, in this example, the at a predetermined distance from the outlet of the diffuser 16 of the air ejector 5 face-to-face by discoid And a plurality of (four) partition plates 22 disposed radially on the upper surface of the disc 21 and fixed to the front portion of the diffuser 16.
[0015]
Thus, between the mixing means 4 and the air ejector 5, there is provided a spraying direction adjusting means 23 for temporarily storing the mixture C from the mixing tank 7 of the mixing means 4 and changing the spraying direction. .
The spraying direction adjusting means 23 is communicated with a fixed cylinder 24 through which the outlet side of the mixing tank 7 of the mixing means 4 is penetrated, and is rotatable about a horizontal axis (left-right direction axis in FIG. 2). 7 is opened and a movable cylinder 25 connected to the inlet of the diffuser 16 of the air ejector 5, a cylinder 26 for rotating the movable cylinder 25, and a diffuser 16 of the air ejector 5 provided inside the movable cylinder 25. And an on-off valve 27 for adjusting the discharge amount of the mixture C. The fixed cylinder 24 and the movable cylinder 25 of the spraying direction adjusting means 23 form a sub tank that temporarily stores the mixture C from the mixing tank 7 of the mixing means 4.
[0016]
Each on-off valve 8, 11, 15, 20, 27 is detected by the indicator 14 when the mixture C in the mixing tank 7 of the mixing means 4 reaches a predetermined amount, and depends on a controller (not shown). The on-off valves 8 and 11 are closed, and the on-off valves 15, 20, and 27 are opened.
[0017]
Next, the operation will be described based on such a configuration.
The granular material A stored in the hopper 2 is supplied to the mixing tank 7 of the mixing means 4 through the on-off valve 8, and the liquid B stored in the tank 3 is also supplied to the mixing tank 7 through the on-off valve 11. To be supplied. The powder A and the liquid B are stirred and uniformly mixed by the stirring blade 12 driven by the motor 13, and are sub-tanked (the fixed cylinder 24 and the movable cylinder 25 of the spraying direction adjusting means 23) via the on-off valve 15. Into the inside.
The mixture C in the sub tank is sent to the diffuser 16 of the air ejector 5 through the on-off valve 27, and the compressed air D from the compressor 18 is injected from the air nozzle 17 through the on-off valve 20 and depends on the venturi effect. The air flow rate is increased. For this reason, the mixture C is pulverized by the rapid mixing with the compressed air D and injected from the tip of the diffuser 16. The pulverized and sprayed mixture C collides with the disk 21 of the stationary spreader 6 to be atomized, and is spread along the disk 21 from its outer edge to the periphery.
[0018]
Not only the powder A and the liquid B are simply mixed, but also the mixture C mixed by the air ejector 5 is pulverized by the compressed air D, and this is collided with the stationary spreader 6 and dispersed. Since it did in this way, the mixture C to be spread | diffused becomes what was refined | miniaturized considerably, the adsorptivity with a road surface is improved, and since spray speed is quick, it can distribute uniformly, without being influenced by a wind.
[0019]
If the pressure of the compressed air D from the compressor 18 is adjusted, the spraying distance of the atomized mixture C can be varied.
[0020]
As shown in FIG. 3, when the movable cylinder 25 is rotated with respect to the fixed cylinder 24 by the cylinder 26 of the spraying direction adjusting means 23, the air ejector 5 and the stationary sprayer 6 are tilted to atomize the mixture C. The spraying direction can be changed.
[0021]
The stationary spreader 6 is fixed to the air ejector 5 in the previous example, but is not limited thereto, and may be fixed to another fixed side, for example.
In the previous example, the spraying direction adjusting means 23 is provided with a so-called rotary pipe joint composed of a fixed cylinder 24 and a movable cylinder 25 between the mixing means 4 and the air ejector 5. A flexible tube may be interposed between the two.
In the previous example, the spraying direction adjusting means 23 tilts the air ejector 5 with respect to the mixing means 4. However, the present invention is not limited to this, and for example, the stationary sprayer 6 is tilted with respect to the air ejector 5. May be.
[0022]
【The invention's effect】
As described above, according to the present invention, the following excellent effects can be obtained.
(1) Consists of a hopper, tank, mixing means, air ejector, and stationary spreader. In particular, an air ejector that pulverizes and injects the mixture from the mixing means with compressed air and a mixture from the air ejector since there is provided a stationary scatterplot Release is sprayed around, a mixture of powdery grains and the liquid is sprayed at high speed is atomized, the adsorption of the road surface is improved. As a result, there is no flow depending on the inclination of the road, and uniform spraying can be performed.
(2) Since the mixture of the granular material and the liquid is atomized and sprayed at a high speed, it is difficult to be affected by the wind. As a result, there is no uneven distribution.
(3) Since the stationary spreader does not need to be rotated, the structure is simplified and the cost can be reduced.
[Brief description of the drawings]
FIG. 1 is a longitudinal side view showing an outline of a wet spraying apparatus of the present invention.
FIG. 2 is a front elevational view of a main part of FIG.
FIG. 3 is a longitudinal side view of a main part showing a state in which an air ejector and a stationary spreader are tilted.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Wet spraying apparatus, 2 ... Hopper, 3 ... Tank, 4 ... Mixing means, 5 ... Air ejector, 6 ... Static spraying board, 7 ... Mixing tank, 8, 11, 15, 20, 27 ... Open / close valve, 9 ... Nozzle, 10 ... piping, 12 ... stirring blade, 13 ... motor, 14 ... indicator, 16 ... diffuser, 17 ... air nozzle, 18 ... compressor, 19 ... air piping, 21 ... disc, 22 ... partition plate, 23 ... spraying Direction adjusting means, 24 ... fixed cylinder, 25 ... movable cylinder, 26 ... cylinder, 100 ... traveling vehicle, 101 ... vehicle body, A ... granular material, B ... liquid, C ... mixture, D ... compressed air.

Claims (3)

粉粒体を貯留するホッパと、液体を貯溜するタンクと、ホッパからの粉粒体とタンクからの液体を混合する混合手段と、混合手段からの混合物を圧縮空気に依り粉砕して噴射させる空気エゼクタと、空気エゼクタからの混合物を衝突させて周囲に散布させる静止散布盤と、から構成した事を特徴とする湿式散布装置。A hopper for storing powder particles, a tank for storing liquid, a mixing means for mixing powder from the hopper and the liquid from the tank, and an air that pulverizes and injects the mixture from the mixing means with compressed air A wet spraying device characterized by comprising an ejector and a stationary spraying plate that collides a mixture from an air ejector and sprays the mixture around the ejector. 静止散布盤は、空気エゼクタに固定されていると共に、混合手段と空気エゼクタとの間には、散布方向を変える為の散布方向調節手段が設けられている請求項1に記載の湿式散布装置。The wet spreader according to claim 1, wherein the stationary spreader is fixed to the air ejector, and a spraying direction adjusting means for changing a spraying direction is provided between the mixing means and the air ejector. 空気エゼクタでの噴射速度を圧縮空気の圧力、流量又はベンチュリ径を変えることにより変化させて飛距離を変更できるようにした請求項1に記載の湿式散布装置。The wet spraying device according to claim 1, wherein the flight distance can be changed by changing the injection speed of the air ejector by changing the pressure, flow rate or venturi diameter of the compressed air.
JP2000286483A 2000-09-21 2000-09-21 Wet spraying device Expired - Fee Related JP3784627B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101205340B1 (en) 2012-01-19 2012-11-28 주식회사 광림 Air ventilation type snow removal powder spreader and vehicle having the same

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10328116A1 (en) * 2003-06-23 2005-01-13 Küpper-Weisser GmbH Method and device for distributing spreading material
US20110127351A1 (en) * 2008-01-16 2011-06-02 Jong Moon Lee Device for spray
JP4742115B2 (en) * 2008-05-20 2011-08-10 順一 濱田 Fairway eye sand spreader
CN107227711A (en) * 2017-08-01 2017-10-03 米爱荣 A kind of snow cleaning truck for road

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101205340B1 (en) 2012-01-19 2012-11-28 주식회사 광림 Air ventilation type snow removal powder spreader and vehicle having the same

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