CN219949433U - Fuel transportation device for power generation of thermal power plant - Google Patents

Abstract

The utility model discloses a fuel transportation device for power generation of a thermal power plant, which comprises a shell, wherein an electric roller and a transmission roller are respectively arranged at positions corresponding to a feed inlet and a discharge outlet, a conveying belt is sleeved between the electric roller and the transmission roller, a disc groove is arranged below a conveying part of the conveying belt in the shell, an air chamber is enclosed between the disc groove and the shell, small holes for communicating the air chamber are formed in the disc groove, a blower is arranged at one side of the shell, an air supply opening of the blower is communicated with the air chamber, a sealing cover is arranged at the top of the shell, a baffle plate is arranged in the sealing cover, and a backflow hole is formed in the baffle plate. According to the utility model, through the cooperation of the blower, the exhaust fan, the backflow cavity and the filter plate, the air in the conveying device circularly flows, so that the phenomenon that dust in the outside air continuously enters the shell to cause air hole blockage is avoided, and the vibrator is arranged on the filter plate, so that the pulverized coal accumulated on the filter plate and brought by the air flow can be shaken off.

Description

Fuel transportation device for power generation of thermal power plant

Technical Field

The utility model relates to the technical field of transportation equipment of thermal power plants, in particular to a fuel transportation device for power generation of a thermal power plant.

Background

Coal is an important reserve energy source, and integrates the existing energy structure analysis in China, in the use of conventional fossil energy sources, coal resources account for 90% of the total energy consumption, and although the national energy structure is consistent in conversion, the energy dominant position of the coal is not broken all the time, and in a thermal power plant, the coal is used as fuel to produce electricity and consume electricity, so that the coal is the main energy structure mode at present.

The air cushion conveyor replaces the carrier roller of the general belt conveyor with the air chamber disc groove with holes, when the air source provides air with certain pressure and flow in the air chamber, the air in the air chamber escapes through the small holes on the disc groove, a layer of air film (air cushion) with certain pressure is formed between the conveyor belt and the disc groove, the conveyor belt and materials on the conveyor belt are supported, and compared with the general belt conveyor, the air cushion conveyor has the advantages of more stable operation, small operation resistance, reliable operation and the like.

In the prior art, the problem that the air cushion conveyor exists mainly is that the dust content of external air in a thermal power plant is high, when the air is blown into an air chamber through a fan, small holes of the air chamber are easy to block, and the partial air cushion pressure is too small to meet the transmission requirement or the air cushion cannot be formed at all, so that the conveyor belt is in direct contact with a disk groove, and the normal transportation of coal is influenced.

For this purpose, a fuel transport device for generating electricity in a thermal power plant is proposed.

Disclosure of Invention

The utility model aims to provide a fuel transportation device for power generation of a thermal power plant, which aims to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a fuel conveyer for thermal power plant's electricity generation, includes the casing, casing both ends are provided with feed inlet and discharge gate respectively, and electric drum and driving drum are installed respectively to the position that corresponds feed inlet and discharge gate, the cover is equipped with the conveyer belt between electric drum and the driving drum, be located conveyer belt transportation part's below in the casing and be provided with the dish groove, enclose between dish groove and the casing and close the air chamber, set up the aperture that communicates the air chamber on the dish groove, the forced draught blower is installed to one side of casing, and the forced draught blower has supply-air port and inlet scoop, and the supply-air port is linked together with the air chamber, sealed lid is installed at the top of casing, is provided with the baffle in the sealed lid, has seted up the return hole on the baffle, is formed with the backward flow chamber between baffle and the sealed lid, the one end that the backward flow chamber is close to the discharge gate is installed the filter plate, the one end that the casing is close to the filter plate is provided with the air exhauster, the air exhauster has air inlet scoop and circulation mouth, and circulation mouth are linked together through circulation pipeline.

Preferably, a tensioning device is arranged in the machine shell, the tensioning device is provided with a tensioning roller and a driving piece for driving the tensioning roller to move towards or away from the conveying belt, and the tensioning roller is arranged on the rotating part of the conveying belt.

Preferably, the casing is provided with a vibrator corresponding to the upper part of the filter plate, the vibrator is connected with the filter plate, the baffle plate is provided with a diversion trench, one side of the diversion trench is provided with a diversion plate extending downwards, and the lower end of the diversion plate is inclined towards the direction close to the discharge hole.

Preferably, the vibrator is installed above the casing corresponding to the filter plate, the dish groove is arranged into a downward concave arc structure, two sides of the dish groove are integrally connected with the casing, the connection end of the casing and the dish groove inclines towards the inner side of the dish groove, the sealing cover is detachably connected with the casing, the sealing cover is provided with cover plates which are symmetrically arranged, and the top ends of the two cover plates incline towards the inner side

Preferably, the discharge gate department installs the stripper, and the bottom of stripper sets up to the direction slope of keeping away from the casing.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, through the cooperation of the blower, the exhaust fan, the backflow cavity and the filter plate, the air in the conveying device circularly flows, and the air in the external environment is not extracted, so that the situation that dust in the external air continuously enters the shell to cause air hole blockage is avoided, the vibrator is arranged on the filter plate, the pulverized coal accumulated on the filter plate and brought by the air flow can be shaken off, and the pulverized coal falls on the conveying belt again through the guide groove and the guide plate and is discharged from the discharge hole along with the coal, so that the filter plate is ensured to be smooth, and the consumption in the fuel conveying process is reduced.

Drawings

FIG. 1 is a schematic cross-sectional elevation view of a portion of the present utility model;

FIG. 2 is a right side cross-sectional view of the present utility model;

FIG. 3 is a schematic cross-sectional elevation view of another portion of the present utility model;

FIG. 4 is a schematic view of a left side cross-sectional structure of the present utility model;

fig. 5 is an enlarged schematic view of the structure of fig. 3 a according to the present utility model.

In the figure: 1. a housing; 2. a feed inlet; 3. a discharge port; 4. an electric roller; 5. a transmission roller; 6. a conveyor belt; 7. a stripper plate; 8. a disk groove; 9. a gas chamber; 10. a small hole; 11. a blower; 12. an air supply port; 13. an air suction port; 14. sealing cover; 15. a partition plate; 16. a reflow hole; 17. a reflow chamber; 18. a filter plate; 19. an exhaust fan; 20. an air suction port; 21. a circulation port; 22. a tension roller; 23. a vibrator; 24. a diversion trench; 25. and a deflector.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected or detachably connected; may be a mechanical connection; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

The utility model provides a fuel transportation device for power generation of a thermal power plant, which is shown in figures 1-5, and comprises a machine shell 1, wherein a feed inlet 2 and a discharge outlet 3 are respectively arranged at two ends of the machine shell 1, an electric roller 4 and a transmission roller 5 are respectively arranged at positions corresponding to the feed inlet 2 and the discharge outlet 3, a conveying belt 6 is sleeved between the electric roller 4 and the transmission roller 5, the electric roller 4 is driven by a motor to rotate, transmission is realized through friction between the conveying belt 6 and the transmission roller 5 and between the electric roller 4, and when the fuel transportation device works, the fuel falls on the conveying belt 6 through the feed inlet 2 of the machine shell 1 and is conveyed to the discharge outlet 3 through the conveying belt 6.

The conveyor belt 6 described above has a conveying portion, which refers to the portion that is driven above, and a turning portion, which refers to the portion that is driven below, it being understood that idler rollers should be provided in the turning portion of the conveyor belt 6 for providing support to the conveyor belt.

Further, the stripper plate 7 is installed at the discharge port 3, the bottom end of the stripper plate 7 is obliquely arranged in a direction away from the machine shell 1, when fuel is conveyed to the discharge port 3, the stripper plate 7 moves in a manner similar to parabolas on the gravity and inertia action line, and the fuel is guided to a preset position through the stripper plate 7 on the movement path.

In some embodiments of the utility model, a tensioning device is provided inside the housing, the tensioning device having a tensioning roller 22, and a drive member for driving the tensioning roller 22 toward or away from the conveyor belt 6, the tensioning roller 22 being provided at a revolving portion of the conveyor belt 6.

As shown in fig. 1, the driving member drives the tensioning roller 22 to move towards the conveying belt 6 to squeeze the conveying belt 6, and when the tensioning roller 22 squeezes the conveying belt 6 downwards, the conveying belt 6 sleeved between the electric roller 4 and the transmission roller 5 is tightened to increase friction force and avoid slipping because the total length of the conveying belt 6 is constant.

A tray groove 8 is arranged below a conveying part of the conveying belt 6 in the machine shell 1, the tray groove 8 is arranged between the conveying part and the rotating part, an air chamber 9 is enclosed between the tray groove 8 and the machine shell 1, a small hole 10 communicated with the air chamber 9 is formed in the tray groove 8, a blower 11 is arranged on one side of the machine shell 1, the blower 11 is provided with a blower inlet 12 and a blower inlet 13, and the blower inlet 12 is communicated with the air chamber 9.

Referring to fig. 2, the dish slot 8 is configured as a downward concave arc structure, both sides of the dish slot 8 are integrally connected with the casing 1, the connection end of the casing 1 and the dish slot 8 is inclined toward the inner side of the dish slot 8, the conveying part of the conveying belt 6 is disposed on the surface of the dish slot 8 and forms a downward concave arc structure similar to the dish slot 8, when the air is blown into the air chamber 9 by the blower 11, the air flow rushing into the air chamber 9 is filled between the conveying belt 6 and the dish slot 8 through the small holes 10 on the dish slot 8, the high-pressure air flow forms an air cushion between the conveying belt 6 and the dish slot 8, the two are separated, and the fuel is conveyed at the middle position of the concave conveying belt 6.

Further, a sealing cover 14 is arranged at the top of the casing 1, a partition plate 15 is arranged in the sealing cover 14, a backflow hole 16 is formed in the partition plate 15, a backflow cavity 17 is formed between the partition plate 15 and the sealing cover 14, a filter plate 18 is arranged at one end, close to the discharge port 3, of the backflow cavity 17, an exhaust fan 19 is arranged at one end, close to the filter plate 18, of the casing 1, the exhaust fan is provided with an exhaust opening 20 and a circulation opening 21, the exhaust opening 20 is communicated with the backflow cavity 17, and the circulation opening 21 is connected with the exhaust opening 13 through a circulation pipeline.

With the above structure, the sealing cover 14 mounted on the casing 1 can avoid leakage of high-pressure air flow, the high-pressure air flow flows upwards from two sides of a gap between the conveyor belt 6 and the disc groove 8, and enters the backflow cavity 17 through the backflow hole 16, and meanwhile, the exhaust fan 19 continuously sucks air flow in the backflow cavity 17, and as will be understood by those skilled in the art, when fuel is conveyed, the air flow flowing upwards from two sides of the conveyor belt 6 can carry part of fuel with smaller mass, and when the part of fuel enters the backflow cavity 17 and is sucked by the exhaust fan 19, the exhaust fan 19 is easy to break down, and in order to solve the problem, a filter plate 18 is mounted at one end of the backflow cavity 17 close to the discharge port 3, and the part of fuel can be trapped.

At the same time, the sucked filtered air flow is sent to the blower 11 through the circulation duct by the blower 19, so that during the transportation, the part of the air is recycled without being supplied from the outside with dust atmosphere, keeping the blower 11 and the blower 19 continuously operating for a long time.

Preferably, the sealing cover 14 is detachably connected with the casing 1, and the sealing cover 14 is provided with two cover plates which are symmetrically arranged, and the top ends of the two cover plates incline inwards.

Further, a vibrator 23 is installed above the casing 1 corresponding to the filter plate 18, the vibrator 23 is connected with the filter plate 18, a diversion trench 24 is formed in the partition plate 15, a diversion plate 25 extending downwards is arranged on one side of the diversion trench 24, and the lower end of the diversion plate 25 is inclined towards the direction close to the discharge port 3.

Referring to fig. 3 and 4, when the vibrator 23 is activated, the filter plate 18 can be vibrated to shake off the fuel attached thereto, it will be understood that the front projection of the inclined filter plate 18 as shown in the drawing should fall completely into the flow guide groove 24, so that most of the fuel dust shaken off can fall onto the flow guide plate 25 through the flow guide groove 24, and finally fall onto the conveying portion of the conveyor belt 6 via the inclined flow guide plate, and the fuel thereon is discharged from the discharge port 3, wherein the vibrator 23 belongs to the prior art, and a person skilled in the art should understand the working principle and use manner thereof, and will not be repeated herein.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a fuel conveyer for thermal power plant's electricity generation, includes the casing, the casing both ends are provided with feed inlet and discharge gate respectively, and electric cylinder and driving roll are installed respectively to the position that corresponds feed inlet and discharge gate, the cover is equipped with the conveyer belt, its characterized in that between electric cylinder and the driving roll: the utility model discloses a conveyer belt conveying part, including casing, air inlet, return hole, air inlet and return pipe, the casing is located conveyer belt conveying part's below is provided with the dish groove in, enclose between dish groove and the casing to be closed the air chamber, the aperture of intercommunication air chamber has been seted up on the dish groove, the forced draught blower is installed to one side of casing, and the forced draught blower has supply-air inlet and inlet scoop, and the supply-air inlet is linked together with the air chamber, sealed lid is installed at the top of casing, is provided with the baffle in the sealed lid, has seted up the return hole on the baffle, is formed with the backward flow chamber between baffle and the sealed lid, the filter plate is installed to the one end that the backward flow chamber is close to the discharge gate, the one end that the casing is close to the filter plate is provided with the air exhauster, the air exhauster has suction inlet and circulation mouth, and suction inlet is linked together with the backward flow chamber, and circulation mouth is connected through circulating line.

2. The fuel transporting device for power generation of a thermal power plant according to claim 1, wherein: the machine shell is internally provided with a tensioning device, the tensioning device is provided with a tensioning roller and a driving piece for driving the tensioning roller to move towards or away from the conveying belt, and the tensioning roller is arranged on the rotating part of the conveying belt.

3. The fuel transporting device for power generation of a thermal power plant according to claim 1, wherein: the casing is corresponding to the top of filter plate and installs the vibrator, the vibrator is connected with the filter plate, the guiding gutter has been seted up on the baffle, one side of guiding gutter has downwardly extending's guide plate, and the guide plate lower extreme is to being close to the direction slope of discharge gate.

4. The fuel transporting device for power generation of a thermal power plant according to claim 1, wherein: the dish groove sets up to the arc structure of undercut, and the both sides and the casing of dish groove are connected in an organic whole, the casing inclines to the inboard of dish groove with the link of dish groove, sealed lid and casing detachable link, sealed lid has the apron that two symmetries set up, two the top of apron inclines to the inboard.

5. The fuel transporting device for power generation of a thermal power plant according to claim 1, wherein: the stripper plate is installed to discharge gate department, and the bottom of stripper plate sets up to the direction slope of keeping away from the casing.