JP2648753B2 - Rail heating method in railway - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to continuous long rails, or so-called long rails, used for fastening railroad rails in the construction or replacement of rails in railroad track construction or in changing the setting of existing rails. The present invention relates to a rail heating method in a railway for heating a rail and setting a length by thermal expansion in conjunction with a work for fixing the rail.

[Conventional technology]

When installing or replacing rails due to aging or breakage of rails on railroad tracks, or when changing the settings of existing rails, the rails are constantly expanding and contracting in response to changes in temperature throughout the four seasons. Replacement work or setting change. However, recently, rails have become longer, and the length of one rail is 700-1
It is very long at 000m. Therefore, in order to construct this long rail, the produced fixed-length rail is used by sequentially welding and connecting. When replacing such long rails and laying them, when fixing the rails to the sleepers on the roadbed, it is natural that the work of heating and fixing the entire rails is performed, and the length is long. Indeed, the work of heating over its entire length is required.

In order to heat this rail, the work of heating the rail is performed by using a burner or the like by defining a range in which one worker can heat the rail. Therefore, when the rails are long, dozens of workers simultaneously heat the rails at a time, which is a very difficult task. In addition, since this work had to be performed during a time when trains were not operating, it had to be performed efficiently according to the instructions of the supervisor. Also,
Since heating is performed by a burner at multiple points, it is difficult to heat the rail uniformly over the entire length of the rail. In addition, since heating cannot be performed at once, the amount of fuel used increases, and not only efficiency of work but also waste of auxiliary materials is reduced. Was inevitable.

Therefore, JP-A-49-31008 discloses that a fuel in which special oil is infiltrated and retained in sawdust is continuously set on the upper surface of the rail supporting flange along the longitudinal direction of the rail, and the heat of combustion of the fuel is used. A rail heating method that heats a rail has been proposed.

[Problems to be solved by the invention]

In the method of heating a rail described in the above publication, by burning fuel set on the rail, the rail can be heated over its entire length, and even a small number of workers can be reliably heated. Becomes However, since a fuel in which a special oil is permeated and retained in sawdust is used as a fuel, the following problems are involved.

Sawdust is only bonded by the viscosity of the special oil, so if you are not very skillful, it will spill a lot from the support flange when setting.

Since the fuel is merely placed on the upper surface of the support flange, it may be blown off by the wind and fall off.
In particular, when the special oil burns to some extent, the bonding force between the sawdust is reduced, the weight is reduced, and the sawdust is easily blown off.

Due to the weight of the special oil and vibration during transportation, the special oil and sawdust are easily separated, and even if both are mixed at an appropriate ratio at a factory, etc. Moves, causing a difference in the mixing ratio in the container. For this reason, even if the fuel is set evenly over the entire length of the rail, the heat generated by the set fuel is different, so that the rail cannot be heated uniformly over the entire length.

Since the fuel is manually placed on the upper surface of the support flange, it is difficult to set a fixed amount of fuel, and the rail cannot be heated evenly over its entire length. Also, when automating to set a certain amount of fuel,
Since the supply amount of fuel cannot be continuously controlled by a simple method such as controlling the flow rate, the configuration of the measuring means becomes complicated.

In order to solve such problems, the present invention can easily perform, for example, uniform heating over the entire length of a long rail to be connected, and can efficiently raise the rail to a desired temperature with minimum fuel. An object of the present invention is to provide a rail heating method in a railway capable of good heating.

[Means for solving the problem]

According to the rail heating method for a railway according to claim 1, the paste-like fuel is continuously attached to an appropriate place of the rail along the longitudinal direction of the rail using its own adhesiveness, and then the paste-like fuel is ignited. The rail is heated by the heat of combustion of the paste fuel.

Here, as in the second aspect, the right portion of the rail is the upper surface of the support flange, and as in the third aspect, at least a thickening agent is mixed with the flammable liquid to form a paste. Using a fuel, using an alcohol as the flammable liquid as described in claim 4, using a paste-like fuel set to a viscosity that enables continuous application in a string form as described in claim 5, It is a preferred embodiment that the required amount of the paste fuel is extruded from the fuel container in the form of a string and attached to the rail.

[Action]

In the rail heating method for railway according to claim 1, the rail is heated with the paste fuel,
Since the pasty fuel is continuously attached to the appropriate place on the rail, for example, even if the paste fuel at one end of the rail is ignited, the flame propagates sequentially to the other end of the rail, and the entire rail is heated. Will be.

Further, since the paste-like fuel is attached to the rail with its own adhesiveness, it does not fall off the rail or ignite by the wind.

Further, as a characteristic of the paste-like fuel, unlike a fuel in which a flammable liquid is permeated and retained in sawdust or the like, the paste-like fuel does not separate due to aging, vibration during transportation, or the like. It can be manufactured and transported to the site for use.

Furthermore, since the paste-like fuel itself has a certain degree of fluidity and adhesiveness, the paste-like fuel is transported to the site, for example, in a state of being filled in a container, and is extruded from the container in a string form at the site and directly on the rail. It is also possible to attach.

In the rail heating method according to the second aspect, the flame of the paste fuel extends from the support flange at the lower part of the rail toward the head of the rail, so that the entire rail is efficiently heated.

In the rail heating method according to the third aspect, the paste fuel is adjusted to a desired viscosity by changing the mixing ratio of the thickener to the combustible liquid.

In the rail heating method according to the fourth aspect, since alcohols are used as the flammable liquid, the emission amount of harmful substances such as soot when the paste fuel is burned is significantly reduced.

In the rail heating method according to the fifth aspect, since the paste-like fuel is set to have a viscosity that allows continuous attachment in a string shape, the paste-like fuel can be easily and continuously attached to the rail. Become.

In the rail heating method according to the sixth aspect, the required amount of the pasty fuel per unit length of the rail is continuously attached to the rail, so that the rail is uniformly heated over its entire length. Become. In addition, since it is extruded in a string form from the fuel container and attached, the paste-like fuel can be easily and continuously attached to the rail.

〔Example〕

The details of the invention will be further described on the basis of an illustrated embodiment.

First, a rail heating method in a railway will be described with reference to FIG. The rail 1 has a head 3 with a top surface 2,
The head 3 is supported on a support flange 5 via a web 4. Then, as shown in FIG. 1, the paste-like fuel A is applied to both corners 6, 6 of the support flange 5 and the web 4 of each rail 1, 1 by using a paste-like fuel impregnating device which will be described later. In this case, the necessary amount of the paste is extruded from a fuel container such as a thin plastic bag or the like by using a tube, a tube, or the like. .

The location where the paste-like fuel A is attached is not limited to the corners 6 and 6 of the support flange 5 and the web 4 on the rail 1, but may be on the upper surface of the support flange 5 or one corner 6 or the head 3 and the web 4. Corners and rails 1
Can be attached to the head 3.

Further, an experiment performed using the pasty fuel A having the following properties will be described in detail.

Appearance Colorless and slightly transparent paste component Methanol 92.8% by weight Carboxyvinyl polymer 1.3 分子 Molecular weight 2 million to 2.5 million Triethylamine 0.9 〃 Water 5.0 〃 Calorific value about 5 kcal / g Specific gravity about 0.81 Paste fuel A is a thin fuel container In a poly container
Using a nozzle of 650 g and a diameter of 9 mm, the thin plastic container of the fuel container is squeezed and a certain amount is extracted from the nozzle.

First, although not specifically shown, a unit short rail of, for example, 1 m having the same size is arranged at a construction site for replacement work or setting change of the rail 1, and the outside air temperature of the construction site is measured,
The temperature of the unit short rail before heating is measured using a thermometer or the like, and then a fixed amount of the paste having the above properties is provided on the upper surface of the support flange of the unit short rail, particularly on both corners of the support flange and the web. The paste-like fuel A is continuously attached in the longitudinal direction, the paste-like fuel A is ignited and burnt, and the temperature of the heated rail after burning is continuously measured using a thermometer or the like. FIG. 2 is a graph showing the relationship between the time after the ignition on the unit short rail and the temperature of the rail in this manner, and shows the amount of each attachment when the outside air temperature is 20 ° C., 18 ° C., and 8 ° C. FIG. 6 shows a change in rail temperature due to the above. Then, referring to FIG. 2, the optimum amount of attachment per unit length is determined according to the outside air temperature at the site and the set temperature of the heated rail. That is, based on the outside air temperature at the construction site, the temperature of the unit short rail before heating, the temperature of the unit short rail after heating, the used amount of the pasty fuel A, and the heat amount of the pasty fuel A, Paste fuel A per unit length of heated rail at site
Can be determined. By measuring the relationship between the amount of pasted fuel and the heating temperature of the rail using the unit short rail at the site as described above, the work of replacing the rail 1 and changing the setting easily affected by the topography, weather, track structure, and the like. In the construction site, the smallest paste fuel A
Thus, the temperature of the heated rail 1 can be increased to a desired temperature. It is preferable to determine the amount of fuel by heating the unit short rail at the construction site as described above, but using a unit rail of a fixed length, a unit capable of obtaining a desired temperature rise in this rail is used. The amount of fuel per length can also be determined by simple experiments or by calculation.

After the amount of the pasty fuel per unit length to be attached to the rail 1 is determined, the rail fastening device (not shown) of the long rail 1 for performing the replacement work and the setting change is loosened, and the laid long rail is laid. 1 is lifted by a rail lifting machine (not shown), and a roller 8 is inserted between the sleeper 7 and the long rail 1 at intervals of about 6 meters from the long rail 1 as shown in FIG.
And the long rail 1 is set in a free state, and a tube with a nozzle or a pasty fuel impregnating device to be described later is attached to both corners 6, 6 of the support flange 5 and the web 4 in the rail 1. The fuel is continuously applied, the fuel is ignited, and the long rail 1 is heated to a desired temperature of, for example, 25 ° C. to 35 ° C. by the heat of combustion.

By using the rail heating method in a railway like this,
Paste fuel A is easily and continuously attached to the corners 6, 6 between the support flange 5 and the web 4 on the rail 1, and the paste fuel A is ignited. Since the flame rises over the head 3 of the rail 1, it is possible to heat the target rail 1 at once and uniformly over the entire length thereof, and the number of personnel required for this heating work is significantly reduced, and the heating work can be performed in a short time and safely. In addition, it can be implemented reliably, and it helps to streamline the laying work even for long rails.

Next, the paste-like fuel impregnating device B, which is a specific means for achieving the rail heating method in the railway according to the present invention, will be described.

FIG. 3 to FIG. 7 show a paste-like fuel impregnating device B in which required equipment is mounted on a traveling carriage 11 of a traveling person who is manually pushed and moved.

The traveling cart 11 can be freely moved by pushing the push frame 12 on a rail temporarily laid on a roller 8 set at a predetermined interval on a rail 1 to be laid by new construction, replacement work or setting change. I have.

On the trolley 11, a storage tank 13 for the paste-like fuel is provided.
And a pump 14 (in this specific example, an air-driven plunger pump 14 is attached to the upper lid 15 of the storage tank 13) to feed the pasty fuel A in the storage tank 13; The air compressor 16 and the internal combustion engine 17 are mounted. At both ends of a shaft 19 supported by the bracket 18 at the rear end of the traveling carriage 11 (the side opposite to the traveling direction during work), a support arm 21 is rotatably mounted at the base end. A wheel 23 is attached to a distal end of the support arm 21 via a mounting seat 22 on a lower side by a wheel support bracket 24, and a discharge nozzle support plate 25 described later is attached upward.

The discharge nozzle 26 has a bifurcated discharge nozzle base tube 28 detachably mounted and supported on a support plate 25 attached to the tip of the support arm 21 and a support piece 27 attached above the base.
The front end of the nozzle pipe 31 is connected to each branched end of the nozzle pipe 31 via a pipe joint 29, and is rotatable with respect to the pipe axis. But,
Paste fuel A can be discharged and attached to a corner portion 6 (not limited to this) where the web 4 and the support flange 5 of the rail to be processed 1 are joined.

The paste-like fuel supplied to the discharge nozzle 26 having such a configuration is supplied to the pump 14 attached to the storage tank 13.
From the discharge port 14 'through a T-shaped branch pipe 32, via a hose 32' connected thereto, to a discharge nozzle base pipe 28, branched by the discharge nozzle base pipe 28, and discharged from each nozzle pipe 31. It has become. It should be noted that a valve 33 attached to the T-shaped branch pipe 32 allows the distribution and supply of the paste-like fuel to the two discharge nozzles 26 and 26 to be distributed in a required amount in equal amounts. The adjustment of the flow rate of each of the discharge nozzles 26 by the individual valves 33 may be adjusted by a distribution valve integrated at one place.

The pump 14 employed in this experimental example is a Puanger-type high-viscosity fluid pump operated by compressed air from a small air compressor 16 driven by an internal combustion engine 17 mounted on the traveling vehicle 11. Therefore, in order to continuously feed the high-viscosity paste-like fuel from the discharge pump 14 to the target position, the paste-like fuel is associated with the storage tank 13 so that the paste-like fuel is positively supplied to the suction side of the pump 14. It is necessary. For this purpose, in this embodiment, the paste fuel
A structure in which the pump body is inserted into the storage tank 13 from the center of the upper lid 15, and a movable lid 34 is arranged on the upper surface of the storage object (heating fuel) inside the storage tank 13, and is stored by pumping out of the pump 14. The paste-like fuel A is configured to be pushed into the suction side of the pump 14 by the pressure difference between the upper and lower chambers via the movable lid 34 in accordance with the decrease in the amount of the object.

In addition, as a pump for delivering the paste-like fuel, in addition to the above example, a tubular rotary pump,
Alternatively, a rotary pump used for transferring a high-viscosity material such as a gear pump can be adopted. For these pumps, the take-out port of the storage tank 13 and the pump suction port are connected from the storage tank 13 for the paste-like fuel so that the pump suction side is pressurized by using a head by gravity or the like. I will keep it. As for the driving of the pump, a method of driving an air motor by compressed air from an engine driven compressor as in the above example, a method of driving an electric motor by an engine driven generator, or a method of directly driving by an engine, Both can be adopted. When a rotary pump is used, a large storage tank can be mounted on a traveling vehicle, which is useful for long-distance rail heating work. Of course, even in the case of the plunger type pump, each discharge nozzle 26 and the pump
If two storage tanks 13 with built-in 14 are mounted, a long-distance attachment work can be performed.

Paste fuel impregnating device B thus configured
The operator puts the long rail 1 to be replaced and placed on the temporarily laid rail 1 so that the operator pushes the hand pushing frame 12 to move the traveling carriage 11. In order for the paste-like fuel A to adhere to the target position of the rail 1, that is, the corner 6 formed by the web 4 and the support flange 5, the support arm 21 is required.
To the rear side, and the wheels 23 attached to the lower part of the tip
Is mounted on the rail head 3 so that the discharge nozzle 26 attached to the support arm 21 follows the movement of the traveling vehicle 11. Prior to the start of the work, the nozzle pipes 31, 31 of the discharge nozzle 26 are pivotally adjusted so that the discharge port 35 faces the corner 6 of the rail 1 as shown by the solid line in FIG. And set. At this time, the joint nut 29 'is tightened and fixed so as not to change.

When the preparation is completed, the internal combustion engine 17 on the traveling vehicle 11 is started to operate the compressor 16, and the compressed air adjusted to the required pressure by the pressure reducing valve 36 is driven by the driving unit of the pump 14 (the plunger is moved up and down by the air motor). And the pump 14 sends out the paste-like fuel A in the storage tank 13. The supply amount of the paste-like fuel A sent out by the pump 14 is adjusted to the respective discharge nozzles 26 by the valves 33 at both ends of the T-shaped branch pipe 32 so that both are discharged in substantially equal amounts.

In this way, when the operator advances the traveling carriage 11, the paste-like fuel becomes a string form from the discharge port 35 at the end of the branched nozzle pipe 31 of each discharge nozzle 26, and the corners of both sides of the rail 1 are formed. It is attached to 6,6. Therefore, the discharge nozzle 26
The amount of paste fuel A to be attached is determined by moving the traveling vehicle 11 in accordance with the amount of the nozzle pipe 31 discharged from the vehicle.

Since the support arm 21 of the discharge nozzle 26 follows the upper surface of the head 3 of the rail 1 by the wheel 23 provided at the tip as described above, the attachment position of the paste fuel A is always determined to be a fixed position.

Note that the discharge nozzle 26 contacts the head 3 of the rail 1 by rotating the tip of the nozzle tube 31 outward until the discharge nozzle 26 finishes the attachment operation of the paste fuel A and shifts to the next operation. Without lifting, it is lifted together with the support arm 21 (indicated by the imaginary line in FIG. 6), and a fixing screw attached to the base of the support arm 22
By fixing to the shaft 19 at 37, the traveling of the traveling vehicle 11 after the operation can be facilitated.

In the above-described embodiment, the type in which the worker pushes and moves the traveling trolley 11 has been described.However, the traveling trolley 11 may be a self-propelled type driven by an engine so that the operator can ride and drive. For example, the operability is further improved by keeping the running speed constant, which contributes to rationalizing the operation of attaching the paste-like fuel A over a long distance.

Lastly, the paste-like fuel A is characterized in that it is made into a paste by mixing at least a thickener with a flammable liquid. And / or water. Here, as the flammable liquid, alcohols, kerosene, gasoline and a mixture thereof can be applied, and the thickener has a property of increasing the viscosity of the flammable liquid, for example, a polymer compound, Metal soap and the like can be mentioned. More specifically, as alcohols, methanol, ethanol, isopropanol,
Butanol, ethylene glycol, diethylene glycol, glycerin, propylene glycol, etc., and as a thickener, carboxyvinyl polymer triethylamine salt, diisopropanolamine salt, triisopropanolamine salt, aluminum naphthenate, aluminum stearate, hydroxypropylcellulose, poly Examples include ethylene oxide.

Solvent naphtha as petroleum hydrocarbons,
And petroleum benzine. Among the alcohols, particularly when methanol is used, petroleum hydrocarbons having a high content of aromatic components such as xylene are suitable in terms of solubility and transparency. The present invention also includes petroleum hydrocarbons which are hardly soluble in fuel alcohol and can be suspended by forced stirring or addition of a surfactant.
Further, it is preferable that the content of petroleum hydrocarbons in the paste fuel is 1 to 15% by weight. If the amount is 5% by weight or more, soot may be generated. One of the purposes of containing petroleum hydrocarbons is to color the flame when ignited, but it is also possible to use other flame reaction of petroleum hydrocarbons to color. And higher alcohols or terpenes can also be used.

Then, in the above-described component composition, the thickener is in a swelling state dispersed in a solvent component in which a combustible liquid is mixed, and becomes a paste. In this case, when water is contained as a constituent component, the contained water acts to promote this tendency to swell.

And, specifically, five types of paste fuels A adjusted with the following component compositions can be shown.

Paste fuel a Methanol 92.5 wt% Hydroxypropylcellulose 7.5 分子 Molecular weight 250,000-400,000 Degree of polymerization 700-1000 Paste fuel b Kerosene 85.0 wt% Naphthenic acid 5.0 ア ル ミ ニ ウ ム Aluminum monostearate 10.0 〃 Paste fuel c Methanol 85.0 wt% Polyethylene oxide 5.0 〃 Molecular weight 3.5 million to 4 million Water 10.0 ペ ー ス ト Paste fuel d Methanol 92.8% by weight Carboxyvinyl polymer 1.3 分子 Molecular weight 2 million to 2.5 million Triethylamine 0.9 〃 Water 5.0 ペ ー ス ト Paste fuel e Methanol 87.8% by weight Solvent naphtha 5.0 Carboxyvinyl polymer 1.3 〃 Molecular weight 2 million to 2.5 million Triethylamine 0.9 〃 Water 5.0 用 い Using these paste fuels A, it is attached to the rail 1 in the manner shown in FIG. That is, the paste-like fuel A was attached along both corners 6 of the web 4 and the support flange 5 on the rail 1. In addition, the paste-like fuel A is not only adhered along the corners 6 of the web 4 and the support flange 5 on the rail 1 but also adhered to the corner 6 on one side or along the right place of the rail 1. Can be continuously attached.

 The dimensions of each part of the rail 1 are as follows.

Rail Length 478mm Height 153mm Head Height 49mm Head Width 65mm Web Height 58mm Web Width 15mm Support Flange Height 30mm Support Flange Width 127mm First, the characteristic diagram shown in FIG. Top surface 2 of rail head 3 corresponding to the amount of paste fuel A attached per unit length (1 m) of the rail
The characteristic curve "a" indicates the use of the paste fuel "a", the characteristic curve "b" indicates the use of the paste fuel "b", and the characteristic curve "c" indicates the use of the paste fuel "c". The characteristic curve d is that using the pasty fuel d, and the characteristic curve e is that using the pasty fuel e. That is, according to the characteristic curve of FIG. 7, it can be understood that the temperature rise of the rail 1 of the paste fuel is large in the order of e, d, b, a, and c. In particular, the paste fuel d
When the paste fuel e is compared with the paste fuel e,
Contains petroleum hydrocarbons, solvent naphtha, which increases the calories burned.
Since the same purpose can be achieved with a smaller amount, the work efficiency can be improved.

Next, the paste fuel A is transferred to the web 4 on the rail 1.
Average along both corners 6, 6 of the support flange 5
Impregnated at a rate of 160 g / m. Then, the paste-like fuel A was simultaneously ignited under an environmental condition of a temperature of 11 ° C. and no wind. This ignited state is shown in FIG. FIG. 10 shows a time-dependent heating characteristic of the top surface 2 of the rail head 3 in this case. The heating characteristic a uses the paste fuel a, and the heating characteristic b Is the one using the paste fuel b, the temperature raising characteristic c is the one using the paste fuel c, the temperature raising characteristic d is the one using the paste fuel d, and the temperature raising characteristic e is the In this case, the fuel e is used. The point α indicated by each temperature rise characteristic is each extinguishing point. That is, the respective heating characteristics show that the paste fuel has good heating characteristics in the order of e, d, b, a, and c in the same manner as the characteristic curve of FIG. From the temperature rise characteristic e, the top surface 2 of the rail head 3 has a maximum temperature of about 59-60 ° C.
It can be confirmed that the temperature rise occurs and that the high temperature state is maintained for about 60 minutes. In comparison with the characteristic d, in the pasty fuel e containing the solvent naphtha, which is a petroleum hydrocarbon, the improvement of the heating efficiency with respect to the rail 1 is recognized with the lapse of time as the calorie burned increases. .

In the next experiment, as shown in FIG. 10, a rail having the same type as the rail 1 and a length of 25 m under an environment where a wind having a temperature of 10 ° C. and a wind speed of 0.5 to 0.8 m / sec acts from the side of the rail 1. At the time of replacing 1, the paste-like fuel e was attached along the corners 6, 6 of the web 4 and the support flange 5 on the rail 1 at an average amount of 200 g / m. 1 'in FIG.
Reference numeral 39 denotes an existing rail, reference numeral 39 denotes a gap when the old rail is removed, reference numeral 7 denotes a sleeper, and reference numeral 38 denotes a bracket for fixing the rail 1 on the sleeper 7. Then, the paste fuel e attached to both sides was ignited at the same time, and the heating operation was started. About 5 minutes after the top surface 2 of the rail 1 was ignited, the temperature rose to a maximum temperature of about 48 ° C., and the temperature range of 25 ° C. to 30 ° C. was maintained for about 10 minutes for about 10 minutes for replacing the rail 1 . Under the temperature condition of the rail 1, the rail 1 is
The work was completed by placing it in the predetermined position and fixing it on the corresponding sleeper 7.

As described above, according to the paste fuel A, the paste 4 is continuously attached along one side or both sides of the web 4 of the rail 1, and the paste fuel A is ignited. This makes it possible to significantly reduce the number of personnel required for the heating operation, and to perform the heating operation safely and reliably in a short time, which helps to rationalize the installation work even on long rails. .

When the above paste fuels a, b, c, d, and e are compared, as shown in Tables 1 and 2, the state at the time of attachment, the state after attachment, the spread of the flame after ignition, the flame There is a difference in the visibility of soot, the generation of soot (smoke), the state of fuel during combustion, the state of flame during combustion, the amount (remaining amount) of burnt waste, the state of burnt waste, viscosity, and the like. First, when the viscosities are compared, the viscosities increase in the order of the paste fuels e, d, b, a, and c. According to Table 1, the range of the viscosity of the paste-like fuel A is about 60,000 to 500,000 cps, but is not limited to this range. The paste-like fuel A has a viscosity that can be attached to the corner 6 of the rail 1. Any paste may be used. Next, when comparing the visibility of the flame at the time of ignition, the paste fuel e containing the solvent naphtha, which is a petroleum hydrocarbon, produces a flame having a light yellowish brown portion, so that the flame becomes more visible. In addition, when the state of the generation of soot (smoke) and the state of the burning residue are compared, the result that the paste fuels e and d are good is obtained.

〔The invention's effect〕

The present invention is configured as described above, and has the following effects.

According to the rail heating method in the railway according to claim 1, the paste-like fuel is continuously arranged at an appropriate position on the rail, and the fuel is ignited, whereby the entire target rail can be heated at once and uniformly. This makes it possible to significantly reduce the number of personnel required for the heating operation, and to perform the heating operation safely and reliably in a short period of time, so that the laying operation of a long rail can be greatly rationalized.

Further, since the paste-like fuel is attached to the rail with its own adhesiveness, it is possible to safely and reliably heat the rail without being blown off by the wind or falling off the rail. In addition, the weight of the paste-like fuel becomes lighter as the combustion proceeds, and the adhesive strength per unit weight becomes larger, making it difficult to blow off the fuel.

Furthermore, since there is no separation due to gravity or vibration during transportation or the like, a pasty fuel can be manufactured in a factory or the like at a desired mixing ratio in advance, and the quality of the pasty fuel such as the calorific value can be improved. .

Furthermore, since the paste-like fuel itself has a certain degree of fluidity and adhesiveness, the paste-like fuel is transported to the site, for example, in a state of being filled in a container, and is extruded from the container in a string form at the site and directly on the rail. It is also possible to attach. In other words, by adjusting the flow rate of the paste-like fuel discharged from the container, it is possible to easily attach a fixed amount of the paste-like fuel to the rail, and also to automate the operation of attaching the paste-like fuel to the rail. It becomes possible.

According to the rail heating method of the second aspect, the flame of the paste fuel extends from the support flange at the lower part of the rail toward the head of the rail, so that the entire rail is efficiently heated and the paste used. Fuel can be saved as much as possible.

According to the rail heating method of the third aspect, the paste-like fuel can be easily adjusted to a desired viscosity by changing the mixing ratio of the thickener to the combustible liquid.

According to the rail heating method according to the fourth aspect, since alcohol is used as the flammable liquid, the paste-like fuel does not easily flow when attached to the rail. The rails can be heated evenly without burning the paste-like fuel, and the rails can be uniformly heated, and the emission of harmful substances such as soot during combustion is greatly reduced.

According to the rail heating method of the fifth aspect, the paste-like fuel is set to have a viscosity that allows continuous attachment in a string shape, so that the paste-like fuel can be easily and continuously attached to the rail. Becomes

According to the rail heating method of the sixth aspect, the required amount of the pasty fuel per unit length of the rail is continuously attached to the rail, so that the rail is uniformly heated over its entire length. become. In addition, since it is extruded in a string form from the fuel container and attached, the paste-like fuel can be easily and continuously attached to the rail.

[Brief description of the drawings]

FIG. 1 is a principle view of a sectional state of a rail heating method in a railway, FIG. 2 is a graph showing a relationship between a time after ignition and a temperature of a rail, and FIG. 3 is an overall perspective view of a paste fuel adhering device. 4, FIG. 4 is a side view, FIG. 5 is a plan view, FIG. 6 is a side view of a discharge nozzle and its supporting mechanism, FIG.
FIG. 8 is a front view showing the relationship between the discharge nozzle and the rail, FIG. 8 is a view showing the maximum temperature rise of the rail, FIG. 9 is a cross-sectional view illustrating the state of attachment of the paste fuel, and FIG. FIG. 11 is a perspective view for explaining a state of replacement of the rail. A: Paste fuel, B: Paste fuel attachment device 1 ... Rail, 2 ... Top surface 3 ... Head 4, Web 5 ... Support flange, 6 ... Corner 7 ... Sleepers, 8 Rollers 9 Flames 11 Carriage trucks 12 Push frames 13 Tanks 14 Pumps 15 Top lids 16 Air compressors 17 Internal combustion engines 18 Brackets 19… Shaft 21… Support arm, 22… Mounting seat 23… Wheel, 24… Support bracket 25… Support plate, 26… Discharge nozzle 27… Support piece, 28… Discharge nozzle base pipe 29 …… Fittings 31 …… Nozzle pipe, 32 …… T-shaped branch pipe 33 …… Valve, 34 …… Movable lid 35 …… Discharge port, 36 …… Reducing valve 37 …… Fixing screw, 38 …… Fitting 39 ……gap

Continuing from the front page (73) Patent holder 999999999 Kagoho Co., Ltd. 3-3-1-5 Minamihorie, Nishi-ku, Osaka-shi (72) Inventor Shuji Omori 2-8-1 Senrioka, Settsu-shi, Osaka No. 1 Dai-Sakae Sanso 104 ( 72) Inventor Toshihiro Nakagawa 4752 Shimotoyoura, Azuchi-cho, Gamo-gun, Shiga Prefecture JCM Co., Ltd. (56) References JP-A-49-31008 (JP, A)

Claims (6)

(57) [Claims] 1. A paste-like fuel is continuously welded at an appropriate position along a longitudinal direction of the rail by utilizing its own adhesiveness. Then, the paste-like fuel is ignited and the heat of combustion of the paste-like fuel is used. A rail heating method for railways that heats rails. 2. The rail heating method for a railway according to claim 1, wherein the appropriate position of the rail is an upper surface of the support flange. 3. The rail heating method according to claim 1, wherein a paste-like fuel made into a paste by mixing at least a thickener with a flammable liquid is used. 4. The rail heating method according to claim 3, wherein alcohol is used as the flammable liquid. 5. The rail heating method in a railway according to claim 1, wherein the fuel is a paste-like fuel whose viscosity is set such that it can be continuously attached in a string form. 6. The rail heating method according to any one of claims 1 to 5, wherein a required amount of the paste-like fuel is extruded from the fuel container in a string form and attached to the rail.