CN210511651U

CN210511651U - High efficiency boiler circulating fluidized bed returning charge device

Info

Publication number: CN210511651U
Application number: CN201921490572.7U
Authority: CN
Inventors: 成杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-09
Filing date: 2019-09-09
Publication date: 2020-05-12
Anticipated expiration: 2029-09-09

Abstract

The utility model discloses a high efficiency boiler circulating fluidized bed returns material device, including the return-feed box, the material entry is installed to one side of return-feed box, bellows is installed to the below of fixed block, the hood is installed to one side of bellows, the ash pipe is installed to the one end of hood, the one end of ash pipe is opened there is the ash hole, there is the furnace chamber in the inside of return-feed box, the grid plate is installed to one side of furnace chamber, the hot plate is installed to one side of grid plate, the separator is installed to one side of hot plate, the internally mounted of furnace chamber has the filter screen, the ash valve is installed to one side of filter screen, the aperture hood is installed to one side of return-feed. The utility model discloses a filter screen adopts the honeycomb formula filter screen, and the cyclone gathers ash, the work of returning the glassware jam all can terminate returning the glassware for the potential safety hazard is caused easily to the device, and the honeycomb formula filter screen is small, compact structure, makes to filter the lime-ash more meticulous, makes returning the difficult jam of glassware, makes the work efficiency of device higher through a plurality of bellows, and the amount of wind is bigger.

Description

High efficiency boiler circulating fluidized bed returning charge device

Technical Field

The utility model relates to a field, in particular to high efficiency boiler circulating fluidized bed returning charge device.

Background

The circulating fluidized bed boiler of the boiler generally has two kinds of coal feeding modes, namely a front wall coal feeding mode and a rear wall return feeder coal feeding mode, the rear wall coal feeding mode usually adopts the return feeder coal feeding mode, which mainly can return unburned fly ash material flow into a hearth for reburning and also can prevent the condition that the coal cannot be fed in time when the front wall coal feeding fails, if a circulating fluidized bed boiler feed back system is unstable and reliable, even if a material separator catches a certain material quantity, the fly ash material flow cannot be stably and timely returned into the boiler, so that the feed back is stopped, if any return feeder stops working suddenly, the circulating material quantity is insufficient, the steam temperature and the steam pressure drop sharply, the bed temperature is difficult to control, the normal operation is threatened, and the return feeder stops working when the ash accumulation of a cyclone cylinder and the return feeder are blocked.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art's defect, provide a high efficiency boiler circulating fluidized bed returning charge device, possible amount of wind is big, the difficult jam of returning charge ware.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a high-efficiency boiler circulating fluidized bed material returning device, which comprises a material returning box, wherein one side of the material returning box is provided with a material inlet, one side of the material returning box is provided with a material returning port, one side of the material returning port is provided with a material returning port, a fixed block is arranged below the material returning box, an air box is arranged below the fixed block, one side of the air box is provided with an air cap, one end of the air cap is provided with an ash discharging pipe, one end of the ash discharging pipe is provided with an ash discharging hole, a furnace chamber is arranged inside the material returning box, one side of the furnace chamber is provided with an air distributing plate, one side of the air distributing plate is provided with a heating plate, one side of the heating plate is provided with a separator, the inside of the furnace chamber is provided with a filter screen, one side of the filter screen is provided with an ash discharging valve, the, and a small-hole blast cap is arranged on one side of the return box.

As an optimal technical scheme of the utility model, three fixed block is installed to the below of return workbin, the return workbin passes through fixed block and bellows fixed connection.

As an optimized technical scheme of the utility model, bellows are connected with the ash pipe through the hood, the hood runs through the ash pipe.

As an optimized technical scheme of the utility model, the inside evenly distributed of furnace chamber has the filter screen, the filter screen adopts the honeycomb formula filter screen.

As an optimized technical scheme of the utility model, the even distribution in inside one side of return bin has the several separator, one side of separator is connected with bellows.

As an optimal technical scheme of the utility model, returning charge mouth downward sloping intercommunication furnace chamber, the material entrance passageway is vertical downwards.

As an optimized technical scheme of the utility model, drain hole intercommunication furnace chamber forms horizontal passage, pipeline intercommunication furnace chamber and ash valve.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses a filter screen adopts the honeycomb formula filter screen, and the cyclone gathers ash, the work of returning the glassware jam all can terminate returning the glassware for the potential safety hazard is caused easily to the device, and the honeycomb formula filter screen is small, filter area is big, compact structure, makes to filter the lime-ash more meticulous, makes the difficult jam of returning the glassware, makes the work efficiency of device higher through a plurality of bellows, and the amount of wind is bigger.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is one of the partial structural schematic diagrams of the present invention;

fig. 3 is a second partial schematic structural view of the present invention;

fig. 4 is a third schematic view of a partial structure of the present invention;

in the figure: 1. returning the material box; 2. a material inlet; 3. returning the material port; 4. a return tuyere; 5. a discharging port; 6. a small hole blast cap; 7. an air box; 8. a hood; 9. ash discharging pipes; 10. ash holes are formed; 11. a fixed block; 12. a filter screen; 13. a furnace chamber; 14. a pipeline; 15. an ash valve; 16. a wind distribution plate; 17. heating plates; 18. a separator.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Wherein like reference numerals refer to like parts throughout.

In addition, if a detailed description of the known art is not necessary to show the features of the present invention, it is omitted. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Example 1

As shown in fig. 1-4, the utility model provides a high efficiency boiler circulating fluidized bed material returning device, which comprises a material returning box 1, a material inlet 2 is installed on one side of the material returning box 1, a material returning port 3 is installed on one side of the material returning box 1, a material returning air port 4 is opened on one side of the material returning port 3, a material discharging port 5 is installed on one side of the material returning box 1, a fixed block 11 is installed below the material returning box 1, an air box 7 is installed below the fixed block 11, an air cap 8 is installed on one side of the air box 7, an ash discharging pipe 9 is installed on one end of the air cap 8, an ash discharging hole 10 is opened on one end of the ash discharging pipe 9, a furnace chamber 13 is arranged inside the material returning box 1, an air distributing plate 16 is installed on one side of the furnace chamber 13, a heating plate 17 is installed on one side of the air distributing plate 16, a separator 18 is installed on one side of the heating, the inside of the furnace chamber 13 is provided with a pipeline 14, and one side of the return box 1 is provided with a small hole blast cap 6.

Furthermore, three fixing blocks 11 are installed below the return box 1, the return box 1 is fixedly connected with the air box 7 through the fixing blocks 11, and the position between the air box 7 and the return box 1 is fixed through the fixing blocks 11.

Bellows 7 is connected with ash discharging pipe 9 through hood 8, and hood 8 runs through ash discharging pipe 9, makes bellows 7 can be connected with ash discharging pipe 9 through hood 8.

The filter screens 12 are uniformly distributed in the furnace chamber 13, the filter screens 12 are honeycomb filter screens, and the honeycomb filter screens are small in size, large in filter area and compact in structure, so that ash residues are filtered more finely.

A plurality of separators 18 are uniformly distributed on one side in the return box 1, one side of each separator 18 is connected with the air box 7, the efficiency of the device is higher through the number of the separators 18, and fly ash is separated through the separators 8.

The material returning port 3 is downward inclined to be communicated with the furnace chamber 13, a channel at the material inlet 2 is downward vertical, and the material can conveniently enter and exit through the material returning port 3 and the material inlet 2.

The discharge hole 5 is communicated with the furnace chamber 13 to form a horizontal channel, the pipeline 14 is communicated with the furnace chamber 13 and the ash discharge valve 15, the material flow is more convenient through the positions of the discharge hole 5 and the furnace chamber 13, and the material flows through the pipeline 14.

Specifically, in the use process, a material inlet 2 is installed at one side of a material return box 1, the material inlet 2 is vertically downward to facilitate the circulation of materials, a material return port 3 is installed at one side of the material return box 1, the material return port 3 is downward inclined to facilitate the outflow of the materials, a material discharge port 5 is installed at one side of the material return box 1, the materials are discharged through the material return port 5, three fixing blocks 11 are installed below the material return box 1, the fixing blocks 11 are fixedly connected with a lower air box 7, an air cap 8 is installed at one side of the air box 7, the air cap 8 is connected with an ash discharge pipe 9, fly ash is discharged through an ash discharge hole 10, a furnace chamber 13 is arranged inside the material return box 1, an air distribution plate 16 is installed at one side of the furnace chamber 13, the upper part of the air distribution plate 16 is communicated with the material inlet 2, a heating plate 17 is installed at one side of the air distribution plate 16, the, separate the material through separator 18, the internally mounted of furnace chamber 13 has filter screen 12, filter screen 12 adopts the honeycomb filter screen, the honeycomb filter screen is small, and filter area is big, compact structure, it is more meticulous to make the filtration lime-ash, make returning charge ware 1 difficult jam, filter screen 12 puts the ash through ash valve 15, carry out the material circulation through furnace chamber 13 internally mounted's pipeline 14, return one side of workbin 1 and install aperture hood 6, carry out the circulation of air through aperture hood 6.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a high efficiency boiler circulating fluidized bed returning charge device, includes return bin (1), its characterized in that, material inlet (2) are installed to one side of return bin (1), return material mouth (3) are installed to one side of return bin (1), return material wind gap (4) have been opened to one side of return material mouth (3), drain hole (5) are installed to one side of return bin (1), fixed block (11) are installed to the below of return bin (1), bellows (7) are installed to the below of fixed block (11), hood (8) are installed to one side of bellows (7), ash discharge pipe (9) are installed to the one end of hood (8), ash discharge pipe's (9) one end is opened there is ash hole (10), there is furnace chamber (13) inside of return bin (1), air distribution plate (16) are installed to one side of furnace chamber (13), hot plate (17) are installed to one side of air distribution plate (16), separator (18) are installed to one side of hot plate (17), the internally mounted of furnace chamber (13) has filter screen (12), ash valve (15) are installed to one side of filter screen (12), the internally mounted of furnace chamber (13) has pipeline (14), aperture hood (6) are installed to one side of return bin (1).

2. The high-efficiency boiler circulating fluidized bed material returning device as claimed in claim 1, wherein three fixing blocks (11) are installed below the material returning box (1), and the material returning box (1) is fixedly connected with the air box (7) through the fixing blocks (11).

3. The high-efficiency boiler circulating fluidized bed material returning device according to claim 1, characterized in that the wind box (7) is connected with an ash discharging pipe (9) through a wind cap (8), and the wind cap (8) penetrates through the ash discharging pipe (9).

4. The high-efficiency boiler circulating fluidized bed material returning device according to claim 1, characterized in that the filter screen (12) is uniformly distributed in the furnace chamber (13), and the filter screen (12) is a honeycomb filter screen.

5. The high-efficiency boiler circulating fluidized bed material returning device as claimed in claim 1, characterized in that a plurality of separators (18) are uniformly distributed on one side of the inside of the material returning box (1), and one side of each separator (18) is connected with the wind box (7).

6. The high-efficiency boiler circulating fluidized bed material returning device according to claim 1, characterized in that the material returning opening (3) is downward inclined to communicate with the furnace chamber (13), and the channel at the material inlet (2) is downward vertical.

7. The high-efficiency boiler circulating fluidized bed material returning device according to claim 1, characterized in that the material discharging port (5) is communicated with the furnace chamber (13) to form a horizontal channel, and the pipeline (14) is communicated with the furnace chamber (13) and the ash discharging valve (15).