JP2002234377A - Particulate conveying vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a particulate conveying vehicle capable of firstly preventing a generation of water drops caused by a condensation in a tank and simply and easily realizing this secondly in the case where a temperature of an external air is lowered at the time of transportation such as a parking storage and a conveying after a particulate is loaded in the tank. SOLUTION: The particulate conveying vehicle conveys a particulate A in the state that the particulate A is loaded in a tank 3 in the bulk loading state. The particulate conveying vehicle has an air tank 17, accumulating a pressurized air B and cooling it by an external air, in which condensed water C is accumulated at a lower part; a pressure-reducing valve 18 for reducing a pressure of the pressurized air B and further cooling it; a swirl flow generation drier 19 making the pressurized air B to a cold air with a less amount of water vapor; and a filter 20 for removing a condensed water drop C from the pressurized air B. At the time of transportation, the pressurized air B is released into a tank under atmospheric pressure through those to fulfill the inside of the tank 3 with a dried air E.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a granular material transportation vehicle. That is, the present invention relates to a granular material transport vehicle that loads and transports cement, flour, chemical products, and other granular materials in a bulk state in a tank.

[0002]

2. Description of the Related Art << Technical background >>
The granular material is loaded in the tank in a dispersed state from the loading facility, transported, and unloaded to the unloading facility. When transported by such a granular material transport vehicle (including during parking and storage), water droplets are generated in the tank, and the granular material adheres to the tank and causes mold or the like, In some cases, it caused solidification. That is, after loading the granular material into the tank of the granular material transport vehicle with the loading equipment, the outside air temperature may be reduced during parking and storage in the parking lot (particularly at night) and during transportation to the unloading equipment (particularly in winter). When the temperature decreases, water droplets are easily generated in the tank. As the temperature decreases, the saturated vapor pressure value in the tank decreases, and the humidity in the tank decreases due to the moisture contained in the air in the tank and the moisture generated from the granular material. As the temperature rises and exceeds 100%, water droplets are likely to be generated due to condensation. In particular, water droplets are remarkably generated in the vicinity of the tank wall in contact with the outside air, and the loaded powder and granules adhere to the tank wall so as to adhere to molds and the like. Sometimes solidified.

<Regarding the prior art> Therefore, conventionally, a fan is attached to the tank of the granular material carrier, and the tank is connected to the outside air in the tank.
Circulation of air was also performed. In other words, during transportation up to unloading, such as during parking storage and transportation after loading the powder and granules, the fan is turned on and the outside air is sent into the tank, and the humidity rises and the tank is easily condensed. Is sent to the outside air through an attached exhaust valve or the like. In this way, by circulating the air, it is possible to prevent the generation of water droplets in the tank and to avoid the adhesion of the loaded granular material to the tank wall, the generation of mold, the solidification, and the like. ,It was done.

[0004]

<Problems to be Solved><< Problems >> The following problems have been pointed out in such conventional examples. First, there is a problem that prevention of water droplet generation in the tank is not reliable. In particular, when the fan is turned on, the moisture in the outside air is sent into the tank as it is, and even when the weather is rainy, it may even have the opposite effect. It was pointed out that the body adhered to the tank wall, generated mold and solidified. Secondly, it is necessary to keep the fan running, which is troublesome, and there are problems in terms of cost and security. That is, since the moisture in the outside air is sent into the tank, such moisture must be sent out again to the outside air. It was pointed out that it was necessary to keep the fan running all the time until unloading during transportation, which was not desirable.

<Regarding the Present Invention> In view of such circumstances, the present invention has been made in order to solve the above-mentioned problems of the prior art. The transported compressed air is discharged to a tank under atmospheric pressure through a decompression unit, a vortex generation dryer, a water removal unit, and the like. SUMMARY OF THE INVENTION It is an object of the present invention to firstly propose a powder carrier in which generation of water droplets in a tank is reliably prevented, and secondly, this can be realized easily and easily.

[0006]

Means for Solving the Problems << Regarding each claim >> The technical means of the present invention for solving such problems is as follows. First, claim 1 is as follows. In other words, the powder and particle carrier according to the first aspect loads cement, flour, chemical products, and other powder and particles in the tank in a dispersed state and transports them. And, a compressor driven by a motor using an in-vehicle battery as a drive source,
An air tank for accumulating pressurized air from the compressor and cooling it with the outside air to accumulate water condensed in a lower portion; a depressurizing section interposed in a pipe between the air tank and the tank; And a removing unit. During transportation, pressurized air from the air tank can be supplied and discharged through the pipe toward the tank under atmospheric pressure in which the granular material is loaded. The decompression unit decompresses the supplied pressurized air and cools it to about room temperature,
The water removing unit removes condensed water droplets from the supplied pressurized air. Thus, the inside of the tank can be filled with dry air.

Next, claim 2 is as follows. In other words, the powder and particle carrier according to the second aspect loads cement, flour, chemical products, and other powders in the tank in a dispersed state and transports them. And, a compressor driven by a motor using an in-vehicle battery as a drive source,
While compressing the pressurized air from the compressor, the air tank is cooled by the outside air and the water condensed in the lower part is accumulated, a vortex generating dryer interposed in piping between the air tank and the tank, and a downstream side And a water removing unit. During transportation, pressurized air from the air tank can be supplied and discharged through the pipe toward the tank under atmospheric pressure in which the granular material is loaded. The vortex generation dryer separates the supplied pressurized air into hot air with a large amount of water vapor and cold air with a small amount of water vapor by a vortex mechanism that expands and rotates at a high speed. Supply only pressurized air. The water removing unit removes condensed water droplets from the supplied pressurized air. Thus, the inside of the tank can be filled with dry air.

<< Regarding the Operation >> The powder carrier of the present invention is configured as described above, and is as follows. First, pressurized air is stored in the vehicle's air tank by a vehicle-mounted battery and a compressor driven by a motor. Moisture or water vapor. Then, the pressurized air is cooled by the outside air to reduce the saturated vapor pressure value, and a large amount of the contained moisture, that is, water vapor, condenses, becomes water, is removed and accumulates in the lower part. The granular material transport vehicle having the granular material loaded in the tank is transported after being parked and stored in a parking lot as needed. Then, in such a transportation, the pressurized air is directed one or more times to the tank under the atmospheric pressure in which the granular material is loaded, from the air tank to a depressurizing unit, a vortex generating dryer, a water removing unit, and the like. Supply and release via

In the decompression section, the pressurized air is decompressed and cooled to about room temperature, and much of the moisture, ie, water vapor, contained therein condenses. In a vortex generator, pressurized air is separated into hot air with a large amount of water vapor and cold air with a small amount of water vapor, and the hot air is released to the outside air.
Most of the moisture, that is, water vapor, in the cold air that has become about normal temperature will condense. The condensed water droplets are removed in the water removing section. Then, the pressurized air from which much of the moisture, that is, water vapor is removed as water or water droplets, is discharged into the tank and expands, thereby producing dry air in which the humidity is further reduced in proportion. The inside of the tank is filled with the extremely dry air, and the moist air is sent to the outside air. The tank is filled with the dry air as described above during the transportation of the granular material, and when the outside air temperature decreases and the saturated vapor pressure value decreases, the generation of water droplets due to condensation is prevented. In addition, this is easily and easily realized by cooling and discharging the pressurized air.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS << About Drawings >>
This will be described in detail based on an embodiment of the invention shown in the drawings. FIG. 1 is an explanatory diagram for explaining an embodiment of the present invention. 2A and 2B are front explanatory views for explaining a granular material transport vehicle, wherein FIG. 2A shows a step of loading the granular material, FIG. 2B shows a step during transportation, and FIG. The figure) shows the steps during unloading.

<< Outline of Granular Material Carrier 1 >> First, the general outline of the granular material carrier 1 will be described with reference to FIG. The granular material transport vehicle 1 is also called a bulk vehicle, and is a type of granular material A selected from cement, flour, and others.
Is loaded as a load in a tank 3 mounted on a vehicle body such as an undercarriage 2 in a bulk state and transported. In addition to the above, carbon, sand, rice, other cereals, granulated sugar, other foods, chemical products, chemicals, and the like can be considered as the powders A loaded in the tank 3. Tank 3
It is made of stainless steel or other one-bath type and has a substantially cylindrical shape with closed front and rear sides. The bottom surface is inclined downward from the front to the rear, and the top surface is linear in the front and rear. A manhole 4 for loading the granular material A is provided on the top surface of the tank 3, and the manhole 4 has a circular opening and a lid. In the figure, 5 is a wheel of the granular material transport vehicle 1, and 6 is a cab.

The granular material transport vehicle 1 loads the granular material A into the tank 3 in a scattered state from the loading facility 7, transports and travels on a road or the like, and unloads it to the unloading facility 8. After loading in the loading equipment 7, long time in the parking lot (for example, overnight),
It is often parked and stored. The powder A is transported by the powder transport vehicle 1 in this way. Loading equipment 7 is shown in FIG.
(1) As shown in FIG.
Is provided with a discharge port 11 with a discharge valve 10 below the silo 9. A space in which the granular material transport vehicle 1 can stop is formed below the discharge port 11. The granular material transport vehicle 1 is configured such that the manhole 4 on the tank 3 faces the discharge port 11 below the silo 9. Stopped to stop. Below the outlet 11, the upper end of a flexible canvas conduit 12 is connected, and the canvas conduit 1
The lower end of 2 is connected to the open opening of the manhole 4 on the tank 3 of the stopped granular material transport vehicle 1, so that the granular material A is loaded.

As shown in FIG. 2 (3), the unloading equipment 8 is erected on the ground, and the silo 1 in which the powder A is stored.
3 is provided. In addition, the tank 3 of the granular material carrier 1
An air introduction pipe (not shown) is connected, and at the time of unloading, pressurized air is blown into the tank 3 from an in-vehicle compressor or the like via the air introduction pipe. Accordingly, the inside of the tank 3 is pressurized, and the loaded granular material A is mixed, aerated, and fluidized, and is caused to flow down along the bottom surface inclined downward. Then, using the pressure difference between the inside and outside, the powder A that has flowed down is discharged from the discharge pipe 14 opened at the lower center of the tank 3 via the external receiving pipe 15,
Unload to the silo 13 of the unloading equipment 8. The granular material transport vehicle 1 and the like are roughly configured as described above.

<< Regarding the Present Invention >> Hereinafter, with reference to FIG. 1, a powder carrier 1 according to the present invention will be described. As described above, this granular material transport vehicle 1 loads and transports cement, flour, chemical products, and other granular materials A in the tank 3 in a dispersed state. Then, the next compressor 16, air tank 17, pressure reducing valve 1 serving as a pressure reducing section
8. Swirl generator 19, filter 2 as water removal unit
0, etc. Hereinafter, these will be described.

<< Regarding the Compressor 16 and the Air Tank 17 >> First, the compressor 16
Is driven by a motor 22, and the air tank 17 compresses and cools the pressurized air B from the compressor 16, and condensed water C accumulates in the lower part.
To describe these in detail, the electric motor 22 uses a 24 V DC vehicle-mounted battery 21 mounted on the granular material carrier 1 as a driving source. And compressor 16
Is driven by such an in-vehicle battery 21, compresses ambient air D at normal temperature, and accumulates pressurized air B in an in-vehicle air tank 17. The air tank 17 has 980 kP
a (10 kgf / cm ² ) or less, for example, about 686 kPa (7 kgf / cm ² ) of compressed air B
Is accumulated. The pressurized air B is heated to, for example, about 300 ° C. with compression and accumulation, and the saturated vapor pressure value is extremely increased. , And keeps its vaporized state.

Then, the air tank 17 and the stored pressurized air B are cooled by the outside air D. The degree of cooling may be such that the temperature does not reach about room temperature, that is, from a high temperature to about a medium temperature. Then, with such cooling, the saturated vapor pressure value of the pressurized air B is greatly reduced, and the moisture, that is, the water vapor contained in a larger amount as described above, even if the humidity is 100% at this time, The remaining part condenses in large quantities. The condensed water C accumulates in the lower part of the air tank 17 and is appropriately removed after the fact. Air tank 17
In this case, a considerable amount of moisture, that is, water vapor is removed, and dried pressurized air B is stored.

<< Reducing Section of Pressure Reducing Valve 18 and the Like >> Between the air tank 17 and the tank 3 of the granular material A described above,
A pipe 23 is provided. The pipe 23 is provided with a pressure reducing valve 18, a vortex generating dryer 19, and a water removing unit 20 in this order from the air tank 17 toward the tank 3. First, the pressure reducing valve 18 serving as a pressure reducing section is connected to the air tank 1.
The pressurized air B supplied from 7 is depressurized and cooled to about room temperature. The pressure reducing section will be described in more detail. In the illustrated example, the pressure reducing valve 18 is used as the pressure reducing section. However, a throttle valve or an orifice can be used instead.

The pressure-reducing valve 18 serving as a pressure-reducing unit converts the supplied pressurized air B into, for example, 294 kPa (3 kg).
f / cm ² ) and the flow rate is adjusted,
A small flow of pressurized air B with reduced pressure is supplied to the pipe 2 downstream.
Supply at 3. By setting the flow rate, the supply and discharge time of the pressurized air B to the tank 3 described later is determined.
The pressurized air B depressurized by the decompression valve 18 serving as a decompression unit is cooled to, for example, about room temperature. That is, the pressurized air B, which has been heated to a high temperature due to the pressure accumulation, is first cooled as a first stage using the outside air D in the air tank 17 as described above, and then as the second stage. Then, the pressure is reduced by the pressure reducing valve 18 to further cool the temperature to about room temperature, for example. In the illustrated example, since the vortex generation dryer 19 is provided next, it is not always necessary to cool the pressure reducing valve 18 to about room temperature.

In any case, the pressurized air B is cooled as the pressure of the compressed air B is reduced by the pressure reducing valve 18, and the saturated vapor pressure value is further reduced. Then, water droplets C are formed. That is, the moisture, that is, the water vapor that has been contained in large amounts due to the pressure accumulation,
As described above, as described above, after being condensed by cooling in the air tank 17 and considerably removed as water C, as a second step, it is condensed by depressurization and cooling by the pressure reducing valve 18 to form water C. Be removed. Regarding the pressurized air B supplied from the air tank 17, the remaining moisture, i.e., water vapor, still condenses at 100% of the humidity at this point, and the condensed water droplets C are removed from the pipe 23. It flows down along with the pressurized air B to the downstream side.
The depressurizing section such as the depressurizing valve 18 removes moisture, that is, water vapor, from the pressurized air B in this way, and further dries it.

<< Swirl Generator 19 >> In the illustrated example, the swirl generator 19 is interposed next to the pipe 23. The vortex generating dryer 19 separates the supplied pressurized air B into a hot air E having a large amount of steam and a cold air F having a small amount of water vapor by a vortex mechanism that expands and rotates at a high speed, and discharges the hot air E to the outside air D. Only the pressurized air B of the cold air F at about room temperature is supplied. The vortex generation dryer 19 will be described in more detail.
The pressurized air B supplied from the upstream side through the pipe 23 is discharged from the supply port 24 into the outer cylinder 25 at a high speed. The vortex mechanism causes the vortex G to expand and rotate at high speed, and flows from the left to the right in the drawing near the inner surface of the outer cylinder 25.

In the outer cylinder 25, the outer vortex G portion is distributed by the right regulating valve 26, passes through the outside of the regulating valve 26, and becomes hot air E from the hot air outlet 27 at the right end to become the outside air. It is discharged to D. This hot air E contains a large amount of water vapor. With respect to such an outer vortex G portion, a portion of the outer tube 25 formed by the centrifugal force of the vortex G on the axial center side generates cold air F with little water vapor due to the portion remaining without being discharged. Is done. The cold air F flows from right to left in the drawing, and is supplied from the cold air outlet 28 to the downstream pipe 23 as pressurized air B.

That is, a large centrifugal force acts on the vortex G, and the speed, pressure, and density rise sharply toward the outer periphery, the resistance increases, the temperature rises, and a large speed, pressure, , Density and temperature differences. Then, on the center side, a low-temperature cold air F colliding with the regulating valve 26 and flowing in a direction opposite to the vortex G, and working on the outer vortex G is formed. In relation to the amount of heat, as the amount of the hot air E discharged from the regulating valve 26 increases, the amount of the cool air F decreases and the temperature decreases. This eddy current generating dryer 19 is well-known. For example, a product name “TOH”
Sold as "IN Air Cooler". In the illustrated example, the pressurized air B is supplied to the downstream side as the cool air F having little humidity, that is, the small amount of water vapor, by interposing such a vortex generation dryer 19.

<< Water Removal Section of Filter 20, etc. >> Next, the water removal section will be described. The water removing unit removes condensed water droplets C from the supplied pressurized air B. In the illustrated example, the filter 20 is used as such a water removing unit, but other various water removing units are possible. For example, silica gel, aqua filter, collision / centrifugal separator, and other various dryers can be employed. The filter 20 in the illustrated example removes dust and water droplets C from the pressurized air B. That is, together with the pressurized air B supplied from the upstream side through the pipe 23, b. As described above, in the pressure reducing section such as the pressure reducing valve 18, the saturated vapor pressure value is reduced due to the cooling, and the water droplet C is condensed. The water droplets C are cooled by the vortex generating dryer 19, and the saturated vapor pressure value is reduced as the temperature decreases, and the water droplets C are condensed. In addition, water droplets C, such as water droplets C that are cooled during the supply by the pipe 23 and condensed by decreasing the saturated vapor pressure value, are supplied. Therefore, the water droplet C included in the pressurized air B of the pipe 23 is removed by the water removing unit such as the filter 20.

<< Discharge into the Tank 3 >> In the powder transporter 1, when transporting the powder A, the pressurized air B from the air tank 17 is applied to the atmospheric pressure where the powder A is loaded. Supply and discharge can be performed toward the lower tank 3 through such a pipe 23. That is, the pressurized air B is supplied from the air tank 17 via a pressure reducing valve 18 serving as a pressure reducing unit, a vortex generating dryer 19 in the illustrated example, a filter 20 serving as a water removing unit, and the like. Loaded tank 3
And is discharged from its inlet 29. When supplying and discharging such pressurized air B, the exhaust valve 30 of the tank 3 is used.
Are switched from closed to open. Then, in this powder and granular material transport vehicle 1, by the release of the pressurized air B,
It is possible to fill the tank 3 with dry air H.

<< Regarding Operation >><< Regarding Operation >> The present invention is configured as described above, and is as follows. Pressurized air B is stored in an air tank 17 mounted on the granular material transport vehicle 1 by an on-board battery 21 and a compressor 16 driven by a motor 22. As a result of the compression and compression, the temperature is raised to a high temperature, the saturated vapor pressure increases, and a large amount of moisture, that is, water vapor is contained. Then, the pressurized air B in the air tank 17 is
Cooling is performed by using the outside air D to lower the saturated vapor pressure value, and a lot of contained moisture, that is, water vapor condenses and becomes water C and accumulates in the lower part of the air tank 17. As described above, the pressurized air B stored in the air tank 17 is stored in a state where much moisture, that is, water vapor is removed as water C, that is, a dried state. Then, the granular material transport vehicle 1 in which the granular materials A are loaded in a bulk state in the tank 3 is parked and stored in a parking lot as needed, and then transported and traveled.

At the time of transportation immediately after loading, during parking storage, during transportation, or the like, the pressurized air B in the air tank 17 is discharged once or as necessary multiple times under the atmospheric pressure at which the powder A is loaded. It is supplied and discharged into the lower tank 3.
Pressurized air B is supplied from the air tank 17 through the pressure reducing valve 18 of the pipe 23 and the vortex generating dryer 19, and is discharged into the tank 3 through the filter 20. Pressure reducing valve 18
And the like, the pressurized air B is decompressed and cooled to about room temperature, so that much of the moisture, that is, water vapor contained therein condenses, forming water droplets C and the filter 2.
It is removed by a water removal unit such as 0. Eddy current generating dryer 19
Then, the pressurized air B is expanded and rotated at a high speed by the vortex mechanism, and separated into a hot air E having a large amount of water vapor and a cold air F having a small amount of water vapor, and the hot air E is released to the outside air. Most of the moisture in the cold air F, that is, water vapor, condenses, and becomes water droplets C to form the filter 20.
Etc. in the water removal section.

By the two steps (the step of the air tank 17 and the step of the pressure reducing valve 18, the vortex generating dryer 19, and the filter 20), the contained moisture, that is, most of the water vapor is converted to the water C. Pressurized air B which has become water droplets C and removed together with hot air E, → tank 3
The air is discharged, purged and expanded, and the dry air H is generated, in which the proportion of humidity is further reduced in proportion. →
The inside of the tank 3 is filled with the dry air H which has been extremely dried in this way. The moisture flowing into the tank 3 when it is loaded, the moisture generated from the granular material A, and other moist air are removed from the tank 3. The air is sent from the inside to the outside air D. Of course, the dry air H spreads into the tank 3 and absorbs some moisture, that is, water vapor, from the air in the tank 3 until then.

<< Advantages, etc. >> Then, in this powder and granular material transport vehicle 1, the following first and second cases are obtained.
First, according to the granular material transport vehicle 1, after loading of the granular material A, the tank 3 is filled with extremely dry air H when the vehicle is transported during parking, storage, transportation, or the like.
Therefore, even when the temperature of the outside air D decreases and the saturated vapor pressure value in the tank 3 decreases, the generation of water droplets C due to condensation in the tank 3 is reliably prevented.

That is, a. After the powder A is loaded in the loading facility 7 (see FIG. 2 (1)), b. During parking storage in a parking lot (particularly at night) ((2) in FIG. 2)
C.), C. During transportation from loading to unloading, such as during transportation to the unloading facility 8 (see FIG. 2 (2)), when the outside air D temperature decreases, water droplets C are generated in the tank 3. Is prevented. Even when the temperature of the outside air D decreases and the saturated vapor pressure value in the tank 3 decreases, the inside of the tank 3 is filled with the dry air E (see FIG. 1). Therefore, since the humidity in the tank 3 is extremely low and does not exceed 100%, the generation of water droplets C due to condensation in the tank 3 is avoided.

Second, and this is the air tank 17
This is easily and easily realized by cooling and discharging the pressurized air B. That is, the water drop C in the tank 3 described above
In order to avoid the occurrence, the on-board battery 21, the motor 22, the compressor 16 and the like are used for the granular material transport vehicle 1 (these are often mounted on and used conventionally for unloading), and the air tank is used. 17, pressure reducing valve 1
8, a vortex generation dryer 19, a filter 20, and the like are provided. Pressurized air B
The supply and discharge operations are simple, simply by opening and closing the valves attached to the air tank 17 and the like.

<< Other >> First, in the illustrated example, the pressure reducing portion such as the pressure reducing valve 18 and the vortex generation dryer 19 are used in combination, but the present invention is not limited to this.
That is, an example in which only one of the pressure reducing unit such as the pressure reducing valve 18 and the vortex generation dryer 19 is used and the other is not used is also possible.

Second, in particular, even in the case where only the pressure reducing section such as the pressure reducing valve 18 is used and the vortex generation dryer 19 is not used, the function, advantage and effect can be sufficiently exhibited. For example, an atmospheric pressure of 98 kPa (1 kgf /
cm ² ) from the outside air D into the air tank 17 by the compressor 16 at a pressure of 686 kPa (7 kgf / c).
m ² ), pressurized with air as a pressurized air B at a temperature of 300 ° C., and then cooled with outside air D to condense water C at the lower part of the air tank 17.
° C, and → the pressure of the condensed water droplet C is reduced by the filter 20. → The atmospheric pressure is 98 kPa (1 kgf / c).
m ² ) When supplied into the lower tank 3, → 13% humidity
The extremely dry air H is generated and released. In other words, a total of 87% humidity before and after water or water C
As a result, dry air H capable of sufficiently exerting the functions, advantages, and effects is generated and released only by the pressure reducing portion such as the pressure reducing valve 18.

Third, of course, the vortex generating dryer 1
In the case where 9 is additionally used, the action, advantages and effects are further ensured as much as the hot air E containing moisture, that is, a large amount of water vapor, is removed. That is, with respect to the pressurized air B and the dry air H, first, after the water and the water droplets C are removed by the air tank 17 and the pressure reducing valve 18 as described above,
As much as the hot air E and the moisture, that is, the water vapor are removed by the vortex generation dryer 19 (see the figure), the dry air H
Is further improved, and the generation of water droplets in the tank 3 is more reliably prevented.

[0034]

<Features of the present invention> As described above, the granular material carrier according to the present invention uses compressed air compressed and cooled in an air tank mounted on a vehicle to transport the compressed air, The water is discharged into a tank under atmospheric pressure through a generation dryer, a water removal unit, and the like. Accordingly, the powder carrier of the present invention exhibits the following effects.

<< First Effect >> First, generation of water droplets in the tank is reliably prevented. That is, in the present invention,
It is compressed and cooled to about room temperature, and a lot of moisture condenses to form water and water droplets, and the pressurized air removed in the air tank and the water removal section is directed to the tank of the powder transporter. ,
Supply and release. Thus, the moisture contained in the air in the tank is sent out to the outside air, and the inside of the tank is filled with dry air.

Therefore, even if the outside air temperature decreases during the transportation of the granular material, the generation of water droplets in the tank as in the above-described conventional example is surely prevented. Even if parking storage and transportation are performed for a long time, generation of water droplets is avoided. In particular, water droplets are prevented from being generated in the vicinity of the tank wall that comes into contact with the outside air, so that the loaded powder and granules adhere to the tank wall so as to cause mold and the like. And no longer solidifies like granulated sugar. Of course, as in the above-mentioned conventional example in which the fan was turned, the moisture in the outside air was sent directly into the tank,
There is no such thing as inducing the generation of water droplets.

<< Second Effect >> Secondly, this is easily and easily realized. That is, in the present invention, the above-described first point is easily realized by a simple configuration in which an on-board battery, a motor, a compressor, and the like are used and an air tank, a decompression unit, a vortex generation dryer, a water removal unit, and the like are provided. Is done. That is, as in the above-described conventional example, during parking and storage after loading the granular material (for example, at night)
It is not necessary to keep the fan running all the time until unloading during transportation, such as during transportation. According to the present invention, it is only necessary to supply and discharge the pressurized air as required, and the operation is simple. For example, the operation, cost, and security aspects are excellent. As described above, the effects exhibited by the present invention are remarkable and large, for example, all the problems existing in this type of conventional example are solved.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram for describing an embodiment of the present invention for a granular material transport vehicle according to the present invention.

FIG. 2 is an explanatory front view for explaining a granular material transport vehicle, and FIG. 2A shows a step of loading granular material;
FIG. 2B shows steps during transportation, and FIG. 3C shows steps during unloading.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 powder transporter 3 tank 16 compressor 17 air tank 18 pressure reducing valve (pressure reducing unit) 19 vortex generator dryer 20 filter (water removing unit) 21 on-board battery 22 motor 23 piping A powder and granular material B pressurized air C water, water drop D Outside air E Hot air F Cold air H Dry air

Claims (2)

[Claims] 1. A vehicle for transporting cement, wheat flour, chemical products, and other powder and granules loaded and dispersed in a tank in a bulk state, comprising a vehicle-mounted battery as a drive source and a motor. , A pressurized air from the compressor, a pressurized air from the compressor, and an air tank in which water condensed in the lower portion is cooled by outside air, and a pipe is interposed between the air tank and the tank. A pressure reducing section, and a water removing section on the downstream side. During transport, pressurized air from the air tank is directed into the tank under atmospheric pressure in which the powder and granules are loaded. It can be supplied and discharged through a pipe. The decompression section decompresses the supplied pressurized air and cools it to about room temperature. The water removal section removes condensed water droplets from the supplied pressurized air. Therefore, the inside of the tank is dried A powder carrier, characterized in that it can be filled with air. 2. A powder and particle carrier for loading cement, flour, chemical products and other powder and granular material in a tank in a dispersed state and transporting the same, wherein a vehicle-mounted battery is used as a drive source and a motor is used. And a pressurized air from the compressor, pressurized air from the compressor, and an air tank that is cooled by the outside air and condensed water accumulates in the lower part, and is interposed in a pipe between the air tank and the tank. A vortex generating dryer and a water removal unit on the downstream side, wherein during transportation, pressurized air from the air tank is directed into the tank under the atmospheric pressure in which the particles are loaded, The vortex generating dryer can separate the supplied pressurized air into hot air with a large amount of water vapor and cold air with a small amount of water vapor by a vortex mechanism that expands and rotates at a high speed. Hot air To the outside air and supply only pressurized air of cold air at about room temperature, and the water removing unit removes condensed water droplets from the supplied pressurized air, thereby filling the tank with dry air. Powder carrier, characterized in that: