JP2012026138A - Agitation-type snow-melting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an agitation-type snow-melting system that is movable with a compact configuration, prevents snow adhered to a rotating axle for agitation from bulking up, and can increase snow-melting efficiency.SOLUTION: An agitation-type snow-melting device has: a snow-melting tank 2 that can store water up to a predetermined water level; a plurality of rotating axles 3 that are rotatably held in parallel within the snow-melting tank 2; agitating vane groups 4 comprising a plurality of vanes 41 that protrude along the axial direction of each rotating axle 3; a rotation-driving means 5 that drives the rotation of each rotating axle 3 and a steam-supply means 6 that supplies steam within the snow-melting tank 2 and/or a high-pressure water jetting means 7 that jets high-pressure water within the snow-melting tank 2. When the rotating axles 3 are rotated, each agitating vane group 4 provided to adjacent rotating axles 3 is disposed in such a manner that each passes through the gap between one vane 41 and another vane 41.

Description

  The present invention relates to a stirring-type snow melting device that melts snow while stirring.

  Conventionally, in areas such as Hokkaido where there is a lot of snowfall, the snow that has fallen on the roads and urban areas is removed by a rotary snowplow, etc. It is common. However, the above snow removal work requires a huge amount of money and manpower, such as securing a snow discharge area and labor, and there is also a problem that noise and traffic congestion occur due to late night work.

  Therefore, conventionally, a snow melting device for melting snow removed instead of snow removal has been proposed. For example, Japanese Patent Application Laid-Open No. 2010-101031 discloses a snow melting apparatus that circulates a heat medium heated by a boiler through a heat dissipating pipe arranged in a plane and heats the heat dissipating pipe to melt snow. (Patent Document 1).

  Japanese Patent Laid-Open No. 2003-147741 discloses a snow melting tank that performs a snow melting process, a hot water shower that supplies hot water, a stirring mechanism that stirs the supplied snow, a storage tank that stores water, and a storage tank interior. A snow melting device having a water level sensor for detecting the water level of the water, a circulation mechanism for heating and circulating the water in the storage tank, and a control unit for controlling the water supply source based on the detection result of the water level sensor is disclosed. (Patent Document 2).

JP 2010-101031 A JP 2003-147741 A

  However, including the invention described in Patent Document 1, a conventional snow melting device using a heat radiating tube is often used underground or disposed on a roof. For this reason, there is a problem that the installation work is very expensive and expensive. Moreover, since it is a fixed installation type, in order to melt the snow removed from the road or the like, it must be transported separately to the snow melting device, which is inefficient.

  Moreover, although there exists a snow melting apparatus that can be mounted on a vehicle as in Patent Document 2, the stirring mechanism is configured by a single rotating shaft. For this reason, the thrown-in snow adheres to a rotating shaft or a stirring blade, and there exists a possibility that the stirring function may fall. In this case, not only the snow melting efficiency is lowered, but also a great load is applied to the drive source of the rotating shaft, and there is a risk of failure.

  The present invention has been made to solve such problems, and is configured to be compact and movable, and prevents snow adhering to the rotating shaft for stirring from being enlarged, snow melting efficiency. An object of the present invention is to provide a stirring type snow melting apparatus that can improve the temperature.

  A stirring-type snow melting device according to the present invention includes a snow melting tank capable of storing water up to a predetermined water level, a plurality of rotating shafts rotatably supported in parallel within the snow melting tank, and axial directions of these rotating shafts. A stirring blade group composed of a plurality of protruding blades, rotation driving means for rotationally driving each rotating shaft, steam supply means for supplying steam into the snow melting tank, and / or high pressure in the snow melting tank. High-pressure water jetting means for jetting water, and when the rotary shafts are rotated, the respective stirring blade groups provided on the adjacent rotary shafts are spaced from each other. Are arranged to pass each other.

  Further, as one aspect of the stirring type snow melting device according to the present invention, a snow throwing inclined plate inclined downward toward the rotating shaft, and water is sprayed from the upper end side of the snow throwing inclined plate to flow snow. You may have a sliding means to make it.

  Furthermore, as one aspect of the stirring-type snow melting device according to the present invention, each blade of the stirring blade group is inclined in a direction in which snow is moved to a substantially central position of the rotation shaft, and the high-pressure water injection means is The high pressure water may be jetted substantially at the center position of the rotating shaft.

  Moreover, as one aspect of the agitation type snow melting apparatus according to the present invention, the steam supply means may be disposed below the surface of the water stored in the snow melting tank.

  Furthermore, as one aspect of the agitation type snow melting device according to the present invention, the rotation driving means may randomly switch and control the rotation direction of each of the rotation shafts.

  ADVANTAGE OF THE INVENTION According to this invention, it is comprised compactly and it can move, it can suppress that snow adheres to the rotating shaft for stirring, and can improve snow melting efficiency.

It is a top view which shows embodiment of the stirring type snow melting apparatus which concerns on this invention. It is the 2A-2A sectional view taken on the line of FIG. In this embodiment, it is a perspective view which shows the piping state of a steam pipe and a circulation pipe. In this embodiment, it is a perspective view which shows the piping state of an injection pipe, a watering pipe, and a drainage pipe. It is an expanded view of the rotating shaft provided with the stirring blade of this embodiment. It is a perspective view of the rotating shaft provided with the stirring blade of this embodiment. It is a figure which shows the other Example of the stirring blade which concerns on this invention.

  Hereinafter, embodiments of a stirring type snow melting device according to the present invention will be described with reference to the drawings.

  As shown in FIGS. 1 to 4, the stirring-type snow melting device 1 of the present embodiment mainly includes a snow melting tank 2 for melting snow and a plurality of rotations rotatably supported in the snow melting tank 2. A shaft 3, a stirring blade group 4 projecting from each of these rotating shafts 3, a rotation driving means 5 for rotationally driving each rotating shaft 3, a steam supply means 6 for supplying steam into the snow melting tank 2, and a snow melting tank 2, a high-pressure water injection means 7 for injecting high-pressure water into the snow 2, a snow-introducing inclined plate 8 for injecting snow, and a gliding flow that scatters the water by spraying water from the upper end side of the snow-introducing inclined plate 8. Means 9, circulation means 10 for circulating the water in the snow melting tank 2, and drainage means 11 for draining the water in the snow melting tank 2. Hereinafter, each component will be described in detail.

  The snow melting tank 2 is for melting snow by putting in snow. In the present embodiment, as shown in FIGS. 1 and 2, the snow melting tank 2 is formed in a substantially rectangular parallelepiped shape and configured to store water at a predetermined water level. Moreover, the upper surface of the snow melting tank 2 is opened so that snow can be poured from above.

  In the present embodiment, a pair of hanging hooks 21 and 21 are provided at the upper end portion of the snow melting tank 2 as shown in FIGS. 1 and 2 in order to improve the portability of the stirring snow melting device 1. Further, the shape of the snow melting tank 2 is formed so as to be able to be placed on a truck or the like, and in particular, the bottom is formed in a flat shape, but is not limited to this configuration, and can store water at a predetermined water level. If so, it may be arbitrarily selected.

  The rotating shaft 3 and the stirring blade group 4 are for stirring so that the thrown-in snow does not become a lump. In this embodiment, as shown in FIG. 1 and FIG. 2, it has two rotating shafts 3 and 3, and these rotating shafts 3 and 3 are rotatable in the snowmelt tank 2 in parallel. It is supported by. Further, as shown in FIGS. 2 and 6, the stirring blade group 4 is composed of a plurality of blades 41 protruding in a spiral manner along the axial direction of each of the rotation shafts 3 and 3.

  In the present embodiment, each blade 41 of the stirring blade group 4 is formed in a substantially rectangular shape by a flat steel material. As shown in FIGS. 1 and 6, the agitation blade groups 4 are arranged such that when the rotation shafts 3 are rotated, the agitation blade groups 4 provided on the adjacent rotation shafts 3 are mutually connected to the blades 41. And the blades 41 are arranged so as to pass each other. Further, in the present embodiment, each blade 41 of the stirring blade group 4 is disposed so as to be inclined by about 45 ° with respect to the axis of the rotary shaft 3 in order to move snow to a substantially central position of the rotary shaft 3. .

  In the present embodiment, each rotating shaft 3 is supported at a position slightly lower than the water surface so as to be submerged in the water stored in the snow melting tank 2 as shown in FIG. By setting the stirring blade group 4 at such a height position, when the stirring blade group 4 is rotated, the snow mass floating on the water surface is crushed both above and below the water surface, and the snow melting efficiency is improved.

  In addition, although this embodiment demonstrated the structure provided with the two rotating shafts 3, it is not limited to this structure, Three or more rotating shafts 3 adjoin a horizontal direction, an up-down direction, or a diagonal direction. And it may be supported in parallel. Further, the shape, orientation, and arrangement of the stirring blade group 4 are not limited to the above configuration, and when the respective rotation shafts 3 are rotated, the stirring blade groups 4 are mutually connected with the blade 41 and the blade 41. If it is arranged so that it can pass through the gap and crush the snow mass, it can be changed appropriately.

  The rotational drive means 5 is for rotationally driving each rotational shaft 3. In the present embodiment, as shown in FIGS. 1 and 2, the rotation driving means 5 includes a gear motor 51 placed on the upper part of the snow melting tank 2 and the rotation driving force of the gear motor 51 applied to each rotation shaft 3. And a chain 52 for transmission. In the present embodiment, a chain 52 is wound between the output shaft of the gear motor 51 and a sprocket 53 provided at one end of one rotating shaft 3. Further, a chain 52 is wound between a sprocket 53 provided at the other end of one rotary shaft 3 and an auxiliary gear 54 meshing with the other rotary shaft 3, and the rotary shafts 3 are opposite to each other. It is designed to rotate in conjunction with the direction.

  Moreover, in this embodiment, the gear motor 51 which comprises the rotational drive means 5 is comprised so that normal / reverse rotation is possible. And the rotation direction of each rotating shaft 3 is switched at random, thereby effectively preventing the adhesion and bias of the snow mass and improving the snow melting efficiency. In addition, the structure of the rotation drive means 5 is not limited to the said structure, If it rotates and drives each rotating shaft 3, it can change suitably.

  The steam supply means 6 is for supplying steam into the snow melting tank 2. In the present embodiment, as shown in FIGS. 1 to 3, the steam supply means 6 includes a plurality of steam pipes 61 piped at the bottom in the snow melting tank 2, and a steam boiler 62 connected to these steam pipes 61. And have. Each steam pipe 61 is formed with a plurality of injection holes (not shown) so as to inject high-pressure steam supplied from the steam boiler 62.

  In the present embodiment, each steam pipe 61 is disposed below the surface of the water stored in the snow melting tank 2 in order to reduce the sound of steam injection and effectively use the latent heat of the steam. . Moreover, it is desirable that the stirring blade group 4 is disposed at the bottom of the snow melting tank 2 as a supply destination where the snow is submerged. However, the steam pipe 61 does not necessarily have to be disposed below the water surface in a place where noise is not a problem. In this embodiment, high-pressure steam is supplied to improve snow melting efficiency, but high-pressure bubbles used in a jacuzzi facility or the like may be used.

  The high-pressure water injection means 7 is for injecting high-pressure water into the introduced snow. In this embodiment, the high-pressure water injection means 7 includes an injection pipe 71 piped above the rotary shaft 3 and a high-pressure water pump connected to the injection pipe 71 as shown in FIGS. 72. In the present embodiment, the injection pipe 71 has an injection hole (not shown) at a position corresponding to the substantially central portion of the rotating shaft 3, and injects high-pressure water toward the approximately central position of the rotating shaft 3. It is supposed to be.

  The snow throwing inclined plate 8 is for gradually throwing snow into the snow melting tank 2. In this embodiment, the snow throwing inclined plate 8 is inclined downward from the upper end portion of the snow melting tank 2 toward the rotary shaft 3 as shown in FIGS. 1 and 2.

  The sliding means 9 sprays water from the upper end side of the snow throwing inclined plate 8 and causes the thrown snow to flow. In this embodiment, as shown in FIGS. 1, 2, and 4, the gliding means 9 is connected to the watering pipe 91 that is piped at the upper end of the snow throwing inclined plate 8 and the watering pipe 91. And a watering pump 92. In this embodiment, the watering pipe 91 has a plurality of watering holes (not shown), and waters water from above the snow thrown into the snow throwing inclined plate 8.

  The circulation means 10 is for circulating water in the snow melting tank 2. In the present embodiment, the circulation means 10 includes a circulation pipe 101 provided in the snow melting tank 2 and a strainer 102 that filters foreign matter or the like of snow melt water, as shown in FIGS. And the snowmelt water taken in from the circulation pipe 101 is supplied to the steam boiler 62, the high-pressure water pump 72, and the watering pump 92, and is circulated. The strainer 102 is configured to be able to process oil and soot in order to satisfy water quality standards that can be used in the steam boiler 62 and the like.

  The drainage means 11 is for draining water in the snow melting tank 2. In the present embodiment, the drainage means 11 has a drainage pump 111 provided in the snowmelt tank 2 and a drainage pipe 112 connected to the drainage pump 111 as shown in FIGS. is doing. The drainage pump 111 is provided at a predetermined height position in the snow melting tank 2 and holds the inside of the snow melting tank 2 at a predetermined water level. In addition, a strainer (not shown) is connected to the drain pipe 112 so that foreign matter and the like are filtered and removed, and then drained.

  In this embodiment, in order to improve snow melting efficiency, both the steam supply means 6 and the high-pressure water injection means 7 are provided, but only one of them is provided as long as a sufficient snow melting effect can be obtained. It may be a configuration.

  Further, in the present embodiment, the snowmelt water is circulated and reused, and excess snowmelt water is drained. However, the present invention is not limited to this configuration. For example, an opening may be formed on the side surface of the snow melting tank 2 so that excess water overflows.

  Below, the effect | action by the stirring type snow melting apparatus 1 of this embodiment provided with the above structure is demonstrated.

  When melting snow using the agitation-type snow melting device 1 of the present embodiment, first, the hoisting hooks 21 and 21 are lifted by heavy machinery or the like through wires and mounted on a truck or the like. As a result, the agitation-type snow melting apparatus 1 can be moved to a desired location to perform snow melting work, and it is not necessary to carry snow.

  Next, after water is stored in the snow melting tank 2 to a predetermined water level, snow is thrown onto the snow throwing inclined plate 8 with a wheel loader or the like. At this time, in this embodiment, since the stirring type snow melting apparatus 1 is comprised simply and compactly, the total height is restrained low. For this reason, the labor at the time of throwing snow is reduced, and the working time is shortened.

  Subsequently, the snow thrown onto the snow throwing inclined plate 8 flows down while gradually sliding toward the rotary shaft 3 along the snow throwing inclined plate 8 by water sprayed from above by the sliding means 9. . Thereby, compared with the case where snow is directly put on the rotating shaft 3 and the stirring blade group 4, the water stored in the snow melting tank 2 is prevented from being absorbed at once and solidified.

  Next, the stirring blade group 4 provided in each rotating shaft 3 is rotationally driven by the rotational drive means 5, and it stirs, crushing the thrown-in snow. At this time, in the snow melting tank 2, the latent heat in the steam is released instantly due to the condensation heat transfer of the high-pressure steam supplied from the steam supply means 6, so that the snow melts in a short time. Further, in the present embodiment, the steam supply means 6 disposed below the water surface reduces the steam injection sound and does not release the latent heat of the steam into the atmosphere.

  In the present embodiment, the stirring blade groups 4 pass through the gap between the blades 41 and 41 and scrape off the snow adhering to the adjacent rotary shafts 3. As a result, the snow adhering to each rotating shaft 3 is prevented from being enlarged, and a decrease in snow melting efficiency and an overload to the gear motor 51 are prevented.

  Further, in the present embodiment, each blade 41 of the stirring blade group 4 moves the introduced snow to a substantially central position of the rotating shaft 3, and the high-pressure water injection means 7 has a high pressure against the moved snow. Spray water. Thereby, even if the temperature of the water to be sprayed is low, the snow melts while being crushed by the impact of the water. Moreover, in this embodiment, since the injection range of high pressure water is restrict | squeezed to the approximate center position of the rotating shaft 3, the pump size and power consumption of the high pressure water pump 72 are reduced.

  In the snow melting tank 2, the circulation means 10 and the drain means 11 adjust the snow melting water stored in the snow melting tank 2 to a predetermined water level. For this reason, the water level does not become too high and the stirring blade group 4 is not submerged. For this reason, it prevents that the crushing action of the snow by the stirring blade group 4 falls, and maintains constant snow melting efficiency. Moreover, the load which rotates the rotating shaft 3 can be suppressed.

  In addition, the circulation means 10 circulates the foreign matter contained in the snowmelt water through the strainer 102 and then circulates it to the steam boiler 62, the high-pressure water pump 72 and the watering pump 92. For this reason, it can be used in places where there is no water supply facility, and the running cost is also reduced.

  Moreover, in this embodiment, the rotation drive means 5 performs switching control of the rotation direction of each rotating shaft 3 at random. For this reason, even when a large snow mass is thrown in, the stirring blade group 4 that rotates in the forward and reverse directions collides with the snow mass from multiple directions and effectively crushes.

According to the stirring type snow melting device 1 of the present embodiment as described above, the following effects can be obtained.
1. The snow adhering to the rotating shaft 3 can be prevented from being enlarged, and the snow melting efficiency can be improved.
2. Snow can be melted by moving directly to the site where you want to melt snow, eliminating the need to reciprocate by truck many times for snow transportation work, saving costs and labor, and reducing noise and traffic congestion during night transportation. Can be eliminated.
3. The snow can be melted quickly by using condensation heat transfer of steam, and noise can be reduced.
4). It can suppress that the snow thrown into the snow melting tank 2 solidifies.
5. In addition to improving snow melting efficiency by injecting high-pressure water, the pump size and power consumption required for injecting high-pressure water can be reduced.
6). Even large snow blocks can be crushed effectively and the snow melting process can proceed without delay.
7). Reusing snowmelt water reduces running costs and can be used even in places where there is no water supply facility.

  In addition, the stirring type snow melting apparatus 1 which concerns on this invention is not limited to embodiment mentioned above, It can change suitably.

  For example, in the present embodiment described above, the stirring type snow melting apparatus 1 of the type that is lifted by the hanging hooks 21 and 21 and placed on a truck or the like has been described, but the present invention is not limited to this configuration. For example, the agitation-type snow melting device 1 may be integrated and mounted on a large vehicle and configured to be movable as a snow melting vehicle. Moreover, you may make it raise the stirring-type snow melting apparatus 1 with a forklift, and to install in a desired place. Further, the agitation snow melting device 1 may be loaded on a trailer and moved by a towing vehicle. That is, the agitation-type snow melting device 1 may be configured so as to be mounted integrally or separately on a predetermined moving means and movable to a desired location.

  Moreover, in this embodiment mentioned above, although each blade | wing 41 of the stirring blade group 4 is formed in simple flat form, it is not limited to this structure. For example, as shown in FIG. 7, if through holes 42 are formed in each blade 41, it is considered that snowmelt water can flow through each through hole 42 and reduce the resistance of water during stirring.

  Further, when the snowmelt water is circulated and reused as in the present embodiment described above, it is assumed that gravel or the like accumulates in the apparatus. Therefore, for example, a storage chamber for storing gravel at a predetermined position of the pipe may be provided. According to this configuration, gravel or the like contained in the snowmelt water is stored in the storage chamber while circulating in the pipe. Therefore, by periodically removing gravel from the storage chamber, it is possible to prevent gravel from accumulating in the apparatus and causing failure.

DESCRIPTION OF SYMBOLS 1 Stirring-type snow melting apparatus 2 Snow melting tank 3 Rotating shaft 4 Stirring blade group 5 Rotation drive means 6 Steam supply means 7 High-pressure water injection means 8 Snow throwing slope 9 Sliding means 10 Circulation means 11 Drainage means 21 Hanging hook 41 Blade 42 Through hole 51 Gear motor 52 Chain 53 Sprocket 54 Auxiliary gear 61 Steam pipe 62 Steam boiler 71 Injection pipe 72 High pressure water pump 91 Sprinkling pipe 92 Sprinkling pump 101 Circulation pipe 102 Strainer 111 Drain pump 112 Drain pipe

A stirring-type snow melting device according to the present invention includes a snow melting tank capable of storing water up to a predetermined water level, a plurality of rotating shafts rotatably supported in parallel within the snow melting tank, and axial directions of these rotating shafts. A stirring blade group composed of a plurality of protruding blades, rotation driving means for rotationally driving each rotating shaft, steam supply means for supplying steam into the snow melting tank, and / or high pressure in the snow melting tank. a stirred snow melting action to have a the high-pressure water injection means for injecting water, each stirring blade group provided to the rotating shaft that fits Ri neighboring passes through the gap between the blade and the blade each other, next to It arrange | positions in the position which scrapes off the snow adhering to the said rotating shaft which fits .

Further, the stirring type snow melting device according to the present invention includes a snow melting tank capable of storing water up to a predetermined water level, a plurality of rotating shafts rotatably supported in parallel in the snow melting tank, and an axial direction of each of the rotating shafts. A stirring blade group consisting of a plurality of blades protruding along, a rotation driving means for rotationally driving the rotary shafts, a steam supply means for supplying steam to the snow melting tank, and / or the snow melting tank. A stirring type snow melting measure having high pressure water injection means for injecting high pressure water to each other, wherein each of the stirring blade groups provided on the adjacent rotating shafts is disposed so as to pass through a gap between the blades and the blades. together and are arranged obliquely in a direction to move the snow substantially central position of said rotary shaft, said high pressure water injecting means, you inject high pressure water to the substantially central position of said rotary shaft.

Claims (5)

A snow melting tank capable of storing water up to a predetermined water level, a plurality of rotating shafts rotatably supported in parallel within the snow melting tank, and a plurality of blades projecting along the axial direction of each rotating shaft A stirring blade group, a rotation driving means for rotationally driving each rotating shaft, a steam supply means for supplying steam into the snow melting tank, and / or a high pressure water injection means for injecting high pressure water into the snow melting tank. And have
An agitation-type snow melting device in which, when the rotation shafts are rotated, the agitation blade groups provided on the adjacent rotation shafts pass through a gap between the blades and the blades.   The snow throwing inclined plate inclined downward toward the rotating shaft and sliding means for spraying snow by spraying water from an upper end side of the snow throwing inclined plate. Stirring type snow melting equipment.   Each of the blades of the stirring blade group is inclined in a direction to move snow to a substantially central position of the rotation shaft, and the high-pressure water injection means injects high-pressure water to a substantially central position of the rotation shaft. The stirring type snow melting apparatus of Claim 1 or Claim 2.   The agitation-type snow melting device according to any one of claims 1 to 3, wherein the steam supply means is disposed below a surface of water stored in the snow melting tank.   The agitation-type snow melting device according to any one of claims 1 to 4, wherein the rotation driving means randomly switches and controls the rotation direction of each rotation shaft.

Images