CN102491017A - Powder transport vehicle - Google Patents
Powder transport vehicle Download PDFInfo
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- CN102491017A CN102491017A CN2011104100626A CN201110410062A CN102491017A CN 102491017 A CN102491017 A CN 102491017A CN 2011104100626 A CN2011104100626 A CN 2011104100626A CN 201110410062 A CN201110410062 A CN 201110410062A CN 102491017 A CN102491017 A CN 102491017A
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Abstract
The invention discloses a powder transport vehicle, which comprises at least one stock bin, wherein the stock bin is partitioned into a material chamber and an air chamber through a ventilation component; the material chamber is positioned above the air chamber; a sucking port is formed above the ventilation component; the air chamber is partitioned into a large air chamber and a small air chamber through a clapboard; the small air chamber is positioned below the sucking port; and both the large air chamber and the small air chamber are provided with air inlet pipes. The air inlet pipe of the small air chamber is opened before discharging is performed, so that air current and air pressure in the small air chamber can be increased, residual powder close to the sucking port above the small air chamber is easy to fluidize, the phenomenon of non-uniform air current in the air chamber can be avoided, residual powder is easy to fluidize, and a small quantity of material residues are left after discharging of the powder transport vehicle.
Description
Technical field
The present invention relates to technical field of engineering machinery, particularly relate to a kind of powder transport trolley.
Background technology
A kind of powder transport trolley comprises parts such as special-purpose automobile chassis, tank body, pipeline system and automatic unloading device.
The powder transport trolley is applicable to that particle diameters such as fly ash, cement, pulverized limestone, mineral powder, granulated alkali are not more than the transportation in bulk of 0.1mm powder dried material.Use in main cement mill, cement warehouse and the heavy construction building site of supplying, and can practice thrift a large amount of packing and loading and unloading work.
Please refer to Fig. 1, Fig. 1 is a kind of structural representation of representative type powder transport trolley.
The feed bin of said powder transport trolley tank body can be Dan Cang, two storehouse or many storehouses.Each said feed bin is divided into two parts up and down, and upper space is a supplies room, and lower room is an air chamber.Have vee-type breaker plate 4 between said supplies room bottom and the said air chamber, have canvas 3 on the said breaker plate 4, said breaker plate 4 and the said feed bin of sliding plate 1 common division.The material sucking port 2 of said feed bin is positioned at the lowest part of said supplies room, and the dividing plate 5 that said air chamber is had air extractor vent is divided into atmospheric air chamber 8 and stingy chamber 9, and said stingy chamber 9 is positioned at said material sucking port 2 belows.The admission port of the air inlet pipe 7 of said feed bin is positioned at said atmospheric air chamber 9.
The discharging of said powder transport trolley is to utilize air compressor; Pressurized air is transported to the air chamber of said feed bin bottom through said air inlet pipe 7; Said atmospheric air chamber 8 is what communicate with said stingy chamber 9; Gas in the said air chamber gets into said supplies room through breaker plate, and the air pressure of whole said feed bin is raise.Under the effect of forced draft; Powder in the said supplies room will be in fluidization, when the pressure in the said feed bin reaches rated value, open the discharge valve of the said material sucking port 2 of control; Fluidised material promptly draws off through the pipeline of said material sucking port 2, thereby reaches the purpose of discharging.
The admission port of the air inlet pipe 7 of representative type powder transport trolley is positioned at said atmospheric air chamber 8; Said material sucking port 2 is positioned at the lowest part of said V-arrangement breaker plate 4, and its below is said stingy chamber 9; Because the structure of said air chamber and breaker plate 4 is piled up powder easily at said material sucking port 2 places, cause powder residual.
Therefore, the powder that how to reduce after the discharging of powder transport trolley is residual, is that those skilled in the art are badly in need of the technical matters that solves at present.
Summary of the invention
The purpose of this invention is to provide a kind of powder transport trolley, the powder that has seldom after this powder transport trolley discharging is residual.
In order to solve the problems of the technologies described above, the invention provides a kind of powder transport trolley, comprise at least one feed bin; Said feed bin is divided into supplies room and air chamber by means for ventilation; Said supplies room is positioned at said air chamber top, and said means for ventilation top has material sucking port, and said air chamber is divided into atmospheric air chamber and little air chamber by dividing plate; Said little air chamber is positioned at said material sucking port below, and said atmospheric air chamber and said little air chamber all have air inlet pipe.
Preferably, the admission port of the said air inlet pipe of said little air chamber be positioned at said material sucking port under.
Preferably, has controlled valve on the pipeline of said air inlet pipe.
Preferably, said controlled valve is a ball valve.
Preferably, the said air inlet pipe of said little air chamber is a secondary intake pipes.
Preferably, said means for ventilation is breaker plate and is positioned at the canvas on the said breaker plate.
Preferably, said dividing plate has air extractor vent, and said air extractor vent place is provided with the unidirectional air inlet system from said atmospheric air chamber to said little air chamber.
Preferably, said unidirectional air inlet system is a valve.
Preferably, said unidirectional air inlet system is the baffle plate of area greater than said air extractor vent, and said baffle plate is positioned at said stingy indoor, and it is hinged on the said dividing plate, and hides said air extractor vent.
Preferably, said air extractor vent is circular, and said baffle plate is a quadrangle, one side said baffle plate be hinged on said air extractor vent top.
The invention provides a kind of powder transport trolley; Comprise at least one feed bin, said feed bin is divided into supplies room and air chamber by means for ventilation, and said supplies room is positioned at said air chamber top; Said means for ventilation top has material sucking port; Said air chamber is divided into atmospheric air chamber and little air chamber by dividing plate, and said little air chamber is positioned at said material sucking port below, and said atmospheric air chamber and said little air chamber all have air inlet pipe.
When the air inlet pipe of said atmospheric air chamber and said little air chamber is ventilated; Gas can get into said supplies room through said means for ventilation; Along with the increase of suction quantity, the air pressure in the said supplies room increases gradually, and makes the powder in the said supplies room be tending towards fluidization gradually; Open said material sucking port this moment, and fluidised said powder is promptly through said material sucking port discharging.
The air inlet pipe of said little air chamber is opened when discharging is about to finish; Said stingy indoor air flow and air pressure are increased; And then make near the remaining powder the said material sucking port in said top, stingy chamber be easy to fluidization; Can avoid occurring the uneven phenomenon of air-flow in the said air chamber, be easy to make remaining powder fluidization, the material that has seldom after the discharging of said powder transport trolley is residual.
In a kind of mode, the admission port of the said air inlet pipe of said little air chamber be positioned at said material sucking port under.
Because said stingy chamber air pressure and air-flow descend, cause said material sucking port place to be prone to pile up remaining powder, then said stingy indoor air inlet pipe can increase said stingy indoor air pressure and air-flow targetedly, makes the remaining powders flowing purification in said material sucking port place.
In the another kind of mode, has controlled valve on the pipeline of said air inlet pipe.
Said air inlet pipe is controlled by said controlled valve, and the controlled valve of each said air inlet pipe can link, and also can control respectively.
Further in the mode, said controlled valve is a ball valve.
Said controlled valve can be ball valve, also can carry out the valve of switch for other to pipeline.
In the further preferred mode, the said air inlet pipe of said little air chamber is a secondary intake pipes.
During the beginning discharging; Only open earlier the said air inlet pipe in the said atmospheric air chamber, carry out the discharging first time, open the air inlet pipe of said little air chamber after the said discharging first time finishes again; Carry out the discharging second time, residual material drew off when the said discharging second time can make said first time discharging.
In the another kind of mode, said means for ventilation is breaker plate and is positioned at the canvas on the said breaker plate.
Said means for ventilation can make the said supplies room of the air admission of said air chamber, can be breaker plate, can also have canvas on the said breaker plate, and said canvas can avoid said powder from said supplies room and then said air chamber.Said canvas has air permeance resistance, can also reduce the speed of air-flow, increases stream pressure.
In the another kind of concrete mode, said dividing plate has air extractor vent, and said air extractor vent place is provided with the unidirectional air inlet system from said atmospheric air chamber to said little air chamber.
Said unidirectional air inlet system is set on said dividing plate, and said unidirectional air inlet system only allows the gas of said atmospheric air chamber to get into said little air chamber.When opening the air inlet pipe of said atmospheric air chamber, gas can get into said little air chamber through said unidirectional air inlet system, and it is residual that top, said stingy chamber possibly have material after the discharging, and this moment, atmospheric air chamber was realized discharging for the first time.When carrying out second time discharging, open the air inlet pipe of said little air chamber, said unidirectional air inlet system can stop the gas of said little air chamber to get into said atmospheric air chamber, and only increase the pressure of said little air chamber this moment, can realize the secondary discharging to residual powder.
Further in the mode, said unidirectional air inlet system is a valve.
Can be at said air extractor vent place mounted valve, during a discharging, the said valve of self-opening under differential pressure action is closed said valve during the secondary discharging, can realize the unidirectional air inlet function of said atmospheric air chamber to said little air chamber.
In the another kind of further mode, said unidirectional air inlet system is the baffle plate of area greater than said air extractor vent, and said baffle plate is positioned at said stingy indoor, and it is hinged on the said dividing plate, and hides said air extractor vent.
When the air inlet pipe of said atmospheric air chamber is opened, the pressure of said gas will promote said baffle plate and rotate around jointed shaft, open said air extractor vent, and said gas can get into said little air chamber from said atmospheric air chamber.When the air inlet pipe of said little air chamber is opened, the pressure of said gas will make said baffle plate be pressed on the said air extractor vent, and then said gas can not get into said atmospheric air chamber from said stingy chamber, and only increases the pressure of said little air chamber.
Description of drawings
Fig. 1 is a kind of structural representation of representative type powder transport trolley;
Fig. 2 is the structural representation of powder transport trolley provided by the present invention;
Fig. 3 is the local enlarged diagram of powder transport trolley shown in Figure 2;
Fig. 4 is a kind of embodiment scheme drawing of the baffle plate of powder transport trolley shown in Figure 2;
Fig. 5 is the right elevation of baffle plate shown in Figure 4.
The specific embodiment
Core of the present invention provides a kind of powder transport trolley, and the powder that has seldom after this powder transport trolley discharging is residual.
In order to make those skilled in the art person understand the present invention program better, the present invention is done further detailed description below in conjunction with the accompanying drawing and the specific embodiment.
Please refer to Fig. 2 and Fig. 3, Fig. 2 is the structural representation of powder transport trolley provided by the present invention, and Fig. 3 is the local enlarged diagram of powder transport trolley shown in Figure 2.
In a kind of concrete embodiment, the invention provides a kind of powder transport trolley, comprise at least one feed bin; Said feed bin is divided into supplies room and air chamber by means for ventilation; Said supplies room is positioned at said air chamber top, and said means for ventilation top has material sucking port 2, and said air chamber is divided into atmospheric air chamber 8 and stingy chamber 9 by dividing plate 5; Said stingy chamber 9 is positioned at said material sucking port 2 belows, and said atmospheric air chamber 8 all has air inlet pipe 7 with said stingy chamber 9.
When the air inlet pipe 7 of said atmospheric air chamber 8 and said stingy chamber 9 is ventilated; Gas can get into said supplies room through said means for ventilation; Along with the increase of suction quantity, the air pressure in the said supplies room increases gradually, and makes the powder in the said supplies room be tending towards fluidization gradually; Open said material sucking port 2 this moment, and fluidised said powder is promptly through said material sucking port 2 dischargings.
The air inlet pipe 7 of said stingy chamber 9 is opened when discharging is about to finish; Can make air pressure increase in the said stingy chamber 9; And then make near the remaining powder the said material sucking port 2 in 9 tops, said stingy chamber be easy to fluidization; Can avoid occurring the uneven phenomenon of air-flow in the said air chamber, be easy to make remaining powder fluidization, the material that has seldom after the discharging of said powder transport trolley is residual.
The air inlet pipe 7 of said stingy chamber 9 can make gaseous tension increase in the said stingy chamber 9; And then make near the pressure the said material sucking port 2 in 9 tops, said stingy chamber increase; Can avoid the lower phenomenon of pressure occurring near the said material sucking port 2, can avoid the material after the discharging of said powder transport trolley residual.
7 pairs of said stingy chamber 9 superchargings targetedly of the said air inlet pipe of said stingy chamber 9 can avoid the interior inhomogeneous material that causes of gaseous tension of said feed bin residual.
Said means for ventilation is positioned at the bottom of bevelled sliding plate 1; Said sliding plate 1 can make said powder be free to slide; Gas through said means for ventilation makes said powder fluidization; Said sliding plate 1 can make the powder of said sliding plate 1 top slide on the said means for ventilation, and said sliding plate 1 and the pressed gas through said means for ventilation make said powder be in fluidization jointly.
Said means for ventilation can be v-shaped structure, and said material sucking port 2 can be relative with the lowest part of the said means for ventilation of V-arrangement.Certainly, said means for ventilation not only is confined to v-shaped structure, and the structure of other types also is fine, for example convex structure; The position of said material sucking port also not only is confined to the lowest part of said means for ventilation, discharging best results when said material sucking port is positioned at lowest part.
In the another kind of concrete embodiment, the admission port of the said air inlet pipe 7 of said stingy chamber 9 be positioned at said material sucking port 2 under.
When not opening the air inlet pipe 7 of said stingy chamber 9, the air pressure of 9 tops, said stingy chamber is lower and air-flow velocity is slower, can cause said material sucking port 2 places to pile up remaining powder.Air inlet pipe 7 can increase in the said stingy chamber 9 and the air pressure and the air-flow of top targetedly in the said stingy chamber 9, makes near said material sucking port 2 remaining powders flowing purifications, also discharging smoothly.
Residual lowest part or the pressure lower that mainly concentrates in the said supplies room of said material; Be near the said material sucking port 2; Near the material that air inlet pipe 7 actvies of said stingy chamber 9 have reduced the said material sucking port 2 is residual, and then it is residual to have reduced the material of said powder transport trolley.
In the concrete embodiment of another kind, has controlled valve 71 on the pipeline of said air inlet pipe 7.
Said air inlet pipe 7 is by said controlled valve 71 controls, and the controlled valve 71 of each said air inlet pipe 7 can link, and also can control respectively.Can open each said air inlet pipe 7 simultaneously, also can open each said air inlet pipe 7 respectively.
In the further concrete embodiment, said controlled valve 71 is a ball valve.
Said controlled valve 71 can be ball valve, also can carry out the valve of opening and closing for other to the pipeline of said air inlet pipe 7.
In sum, said controlled valve 71 not only is confined to ball valve, can realize that the valve that pipeline to said air inlet pipe 7 carries out the other types of opening and closing also is fine, for example: diaphragm valve or shutoff valve.
In the another kind of concrete embodiment, the said air inlet pipe 7 of said stingy chamber 9 is a secondary intake pipes 72.
During the beginning discharging; Only open earlier the said air inlet pipe 7 in the said atmospheric air chamber 8, carry out the discharging first time, open the air inlet pipe 7 of said stingy chamber 9 after the said discharging first time finishes again; Carry out the discharging second time, residual material drew off when the said discharging second time can make said first time discharging.
Said air inlet pipe 7 air inlet simultaneously in said air inlet pipe 7 in the said atmospheric air chamber 8 and the said stingy chamber 8 also can be distinguished air inlet, can realize that the material that has seldom in the said feed bin in discharging end back is residual.
In the concrete embodiment of another kind, said means for ventilation is breaker plate 4 and is positioned at the canvas 3 on the said breaker plate 4.
Said means for ventilation can make the said supplies room of the air admission of said air chamber, can be breaker plate 4, can also have canvas 3 on the said breaker plate 4, and said canvas 3 can avoid said powder from said supplies room and then said air chamber.Said canvas 3 has air permeance resistance, can also reduce the speed of air-flow, increases stream pressure.
Obviously, said means for ventilation not only is confined to be made up of with said canvas 3 said breaker plate 4, can realize that other structures of said air chamber and the obstructed powder of said stingy chamber venting can be fine.And not only be confined to install said canvas 3 on the said breaker plate 4, can avoid said powder to get into said air chamber and other materials with air permeance resistance also can be used in the present invention.
A kind of preferred embodiment in, said dividing plate 5 has air extractor vent 6, said air extractor vent 6 places are provided with the unidirectional air inlet system 61 from said atmospheric air chamber 8 to said stingy chamber 9.
Said unidirectional air inlet system 61 is set on said dividing plate, and 61 of said unidirectional air inlet systems allow the gas of said atmospheric air chamber 8 to get into said stingy chamber 9.When opening the air inlet pipe 7 of said atmospheric air chamber 8, gas can get into said stingy chamber 9 through said unidirectional air inlet system 61, and it is residual that 9 tops, said stingy chamber possibly have material after the discharging, and this moment, atmospheric air chamber 8 was realized discharging for the first time.When carrying out second time discharging, open the air inlet pipe 7 of said stingy chamber 9, said unidirectional air inlet system 61 can stop the gas of said stingy chamber 9 to get into said atmospheric air chamber 8, and only increase the pressure of said stingy chamber 9 this moment, can realize the secondary discharging to residual powder.
When carrying out first time discharging, can only open the said air inlet pipe 7 in the said atmospheric air chamber 8, also can open the said air inlet pipe 7 in said atmospheric air chamber 8 and the said stingy chamber 9 simultaneously; When carrying out second time discharging, can only open the said air inlet pipe 7 in the said stingy chamber 9, also can open the said air inlet pipe 7 in said stingy chamber 9 and the said atmospheric air chamber 8 simultaneously; Can realize that with upper type the powder that has seldom after the discharging of said powder transport trolley is residual.
Further in the embodiment, said unidirectional air inlet system 61 is a valve.
Can be at said air extractor vent 6 place's mounted valves, during a discharging, the said valve of self-opening under differential pressure action is closed said valve during the secondary discharging, can realize the unidirectional air inlet function of said atmospheric air chamber 8 to said stingy chamber 9.
Please refer to Fig. 4 and Fig. 5, Fig. 4 is a kind of embodiment scheme drawing of the baffle plate of powder transport trolley shown in Figure 2, and Fig. 5 is the right elevation of baffle plate shown in Figure 4.
In the another kind of further embodiment, said unidirectional air inlet system 61 is the baffle plate 62 of area greater than said air extractor vent 6, and said baffle plate 62 is positioned at said stingy chamber 9, and it is hinged on the said dividing plate 5, and hides said air extractor vent 6.
When the air inlet pipe 7 of said atmospheric air chamber 8 is opened, the pressure of said gas will promote said baffle plate 62 and rotate around jointed shaft, open said air extractor vent 6, and said gas can get into said stingy chamber 9 from said atmospheric air chamber 8.When the air inlet pipe 7 of said stingy chamber 9 is opened, the pressure of said gas will make said baffle plate 62 be pressed on the said air extractor vent 6, and then said gas can not get into said atmospheric air chamber 8 from said stingy chamber 9, and only increases the pressure of said stingy chamber 9.
In the further preferred embodiment, said air extractor vent 6 is circular, and said baffle plate 62 is a quadrangle, one side said baffle plate 62 be hinged on said air extractor vent 6 tops.
Certainly, said air extractor vent 6 not only is confined to above-mentioned situation with the shape of said baffle plate 62, can realize that other shapes or the structure of said unidirectional air inlet system 61 unidirectional air inlet functions also can be used in the present invention.
More than powder transport trolley provided by the present invention has been carried out detailed introduction.Used concrete example among this paper principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (10)
1. a powder transport trolley comprises at least one feed bin, and said feed bin is divided into supplies room and air chamber by means for ventilation; Said supplies room is positioned at said air chamber top; Said means for ventilation top has material sucking port (2), it is characterized in that said air chamber is divided into atmospheric air chamber (8) and little air chamber (9) by dividing plate (5); Said little air chamber (9) is positioned at said material sucking port (2) below, and said atmospheric air chamber (8) and said little air chamber (9) all have air inlet pipe (7).
2. powder transport trolley as claimed in claim 1 is characterized in that, the admission port of the said air inlet pipe (7) of said little air chamber (9) be positioned at said material sucking port (2) under.
3. powder transport trolley as claimed in claim 2 is characterized in that, has controlled valve (71) on the pipeline of said air inlet pipe (7).
4. powder transport trolley as claimed in claim 3 is characterized in that, said controlled valve (71) is a ball valve.
5. powder transport trolley as claimed in claim 4 is characterized in that, the said air inlet pipe (7) of said little air chamber (9) is secondary intake pipes (72).
6. like each described powder transport trolley of claim 1 to 5, it is characterized in that said means for ventilation is breaker plate (4) and is positioned at the canvas (3) on the said breaker plate (4).
7. powder transport trolley as claimed in claim 6 is characterized in that, said dividing plate (5) has air extractor vent (6), and said air extractor vent (6) locates to be provided with the unidirectional air inlet system (61) from said atmospheric air chamber (8) to said little air chamber (9).
8. powder transport trolley as claimed in claim 7 is characterized in that, said unidirectional air inlet system (61) is a valve.
9. powder transport trolley as claimed in claim 7; It is characterized in that said unidirectional air inlet system (61) is the baffle plate (62) of area greater than said air extractor vent (6), said baffle plate (62) is positioned at said little air chamber (9); It is hinged on the said dividing plate (5), and hides said air extractor vent (6).
10. powder transport trolley as claimed in claim 9 is characterized in that, said air extractor vent (6) is circular, and said baffle plate (62) be a quadrangle, said baffle plate (62) one side be hinged on above the said air extractor vent (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104100626A CN102491017A (en) | 2011-12-09 | 2011-12-09 | Powder transport vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104100626A CN102491017A (en) | 2011-12-09 | 2011-12-09 | Powder transport vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN102491017A true CN102491017A (en) | 2012-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104100626A Pending CN102491017A (en) | 2011-12-09 | 2011-12-09 | Powder transport vehicle |
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Cited By (6)
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| WO2015024455A1 (en) * | 2013-08-20 | 2015-02-26 | 南通中集特种运输设备制造有限公司 | Bulk container and ventilation device thereof |
| CN106081389A (en) * | 2016-07-28 | 2016-11-09 | 中国重汽集团柳州运力专用汽车有限公司 | Bulk powder goods tanker multi-pipeline air intake installation |
| CN109335352A (en) * | 2018-10-24 | 2019-02-15 | 中车太原机车车辆有限公司 | Gas, which unloads, dumps dual-purpose tank container |
| CN112875332A (en) * | 2021-01-21 | 2021-06-01 | 中车石家庄车辆有限公司 | Pneumatic device for powdery bulk material |
| CN113212285A (en) * | 2021-05-07 | 2021-08-06 | 山东中策专用车股份有限公司 | Pneumatic feeding and discharging powder material tank truck |
| RU209040U1 (en) * | 2021-11-01 | 2022-01-31 | Общество с ограниченной ответственностью "Торгово-Закупочная Компания ОВК" (ООО "ТЗК "ОВК") | TANK CAR BOILER |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2015024455A1 (en) * | 2013-08-20 | 2015-02-26 | 南通中集特种运输设备制造有限公司 | Bulk container and ventilation device thereof |
| AU2014311044B2 (en) * | 2013-08-20 | 2018-05-17 | Cimc Containers Holding Company Ltd. | Bulk container and ventilation device thereof |
| EA032831B1 (en) * | 2013-08-20 | 2019-07-31 | Нантон Симс-Спешал Транспортэйшн Иквипмент Манюфакчур Ко., Лтд. | Bulk container and ventilation device of said container |
| CN106081389A (en) * | 2016-07-28 | 2016-11-09 | 中国重汽集团柳州运力专用汽车有限公司 | Bulk powder goods tanker multi-pipeline air intake installation |
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| CN112875332A (en) * | 2021-01-21 | 2021-06-01 | 中车石家庄车辆有限公司 | Pneumatic device for powdery bulk material |
| CN113212285A (en) * | 2021-05-07 | 2021-08-06 | 山东中策专用车股份有限公司 | Pneumatic feeding and discharging powder material tank truck |
| RU209040U1 (en) * | 2021-11-01 | 2022-01-31 | Общество с ограниченной ответственностью "Торгово-Закупочная Компания ОВК" (ООО "ТЗК "ОВК") | TANK CAR BOILER |
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