CN210786683U

CN210786683U - Spiral dust device of boiler

Info

Publication number: CN210786683U
Application number: CN201921111838.2U
Authority: CN
Inventors: 李祥
Original assignee: Zhuzhou Jiuding Feed Co ltd
Current assignee: Zhuzhou Jiuding Feed Co ltd
Priority date: 2019-07-16
Filing date: 2019-07-16
Publication date: 2020-06-19
Anticipated expiration: 2029-07-16

Abstract

The utility model discloses a spiral dust fall device of a boiler, which comprises a dust fall barrel, wherein liquid is contained in the barrel; the operation box is communicated with the dust falling barrel, and the top of the operation box is at least partially open so as to observe the liquid conditions in the operation box and the dust falling barrel; the air inlet pipe comprises an air inlet, the air inlet introduces the flue gas generated by the boiler into the dust falling barrel from the air inlet, and the air inlet pipe is arranged in a tangent manner with the dust falling barrel so that the flue gas moves along the barrel wall of the dust falling barrel when entering the dust falling barrel; the dust falling barrel is arranged in the dust falling barrel, the other end of the dust falling barrel extends out of the dust falling barrel, and the horizontal height of the bottom of the exhaust pipe is not lower than that of the top of the operation box. The utility model provides a dust device, simple structure, reasonable in design effectively realizes the purpose to boiler flue gas dust fall, and the cost is lower.

Description

Spiral dust device of boiler

Technical Field

The utility model relates to a boiler dust fall field, in particular to spiral dust device of boiler.

Background

In some plants, such as swine feed plants, a boiler is required to provide steam, and the source of heat for the boiler is typically by burning coal or wood, etc. in a combustion chamber of the boiler, thereby creating a significant amount of flue gas pollution. In the prior art, a plurality of production plants directly discharge boiler flue gas into the atmosphere, and the smoke dust and the like in the flue gas cause atmospheric pollution because the smoke dust and the like are not treated; dust removal is also performed by using special dust removers, even complex water film dust removal equipment, but the cost is high, and some small production plants rarely purchase the dust removers specially.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a spiral dust device of boiler can effectively reach dust removal effect and the cost is lower, simple and practical.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a spiral dust device of boiler, includes: a dust falling barrel, wherein liquid is contained in the barrel; the operation box is communicated with the dust falling barrel, and the top of the operation box is at least partially open so as to observe the liquid conditions in the operation box and the dust falling barrel; the air inlet pipe comprises an air inlet, the air inlet introduces the flue gas generated by the boiler into the dust falling barrel from the air inlet, and the air inlet pipe is arranged in a tangent manner with the dust falling barrel so that the flue gas moves along the barrel wall of the dust falling barrel when entering the dust falling barrel; the dust falling barrel is arranged in the dust falling barrel, the other end of the dust falling barrel extends out of the dust falling barrel, and the horizontal height of the bottom of the exhaust pipe is not lower than that of the top of the operation box.

Adopt above-mentioned structure, the flue gas that produces in the boiler can be along with the intake pipe, gets into in the dust fall bucket to along bucket inner wall motion, form the spiral motion orbit, with the liquid surface contact in the bucket, the large granule material in the flue gas, like smoke and dust etc. will be adsorbed by liquid, and then realize the effect of dust fall.

The method is further optimized as follows: still be provided with the spiral board on the inboard bucket wall of dust fall bucket, the spiral board includes initiating terminal and end, the initiating terminal is located directly over the air inlet, the end is located below the liquid level line of liquid in the dust fall bucket.

The method is further optimized as follows: the air inlet pipe is cuboid, and the width of the spiral plate is larger than that of the air inlet pipe; or the air inlet pipe is in a cylindrical shape, and the width of the spiral plate is not less than the diameter of the air inlet pipe.

The method is further optimized as follows: the air inlet pipe is arranged obliquely upwards, and flue gas generated by the boiler enters the dust falling barrel along the air inlet pipe obliquely downwards.

The method is further optimized as follows: the operation box is arranged in a semi-open manner, and the height of the open part of the operation box is lower than that of the part of the operation box which is not open; the lowest point of the bottom of the exhaust pipe is flush with the highest point of the part, which is not opened, of the operation box, so that the distance between the liquid level line of the liquid in the dust falling barrel and the bottom of the exhaust pipe can be observed.

The method is further optimized as follows: the operation box is provided with a lowest liquid level line, and the lowest liquid level line is flush with the tail end of the spiral plate.

The method is further optimized as follows: the side wall of the exhaust pipe is provided with an annular guide surface.

The method is further optimized as follows: the height of the annular guide surface is lower than the height of the starting end of the spiral plate.

The method is further optimized as follows: the liquid conditions in the operation box and the dust falling barrel comprise the liquid level line of the liquid, the cleanliness of the liquid and the color of the liquid.

The method is further optimized as follows: the exhaust pipe is chimney-shaped.

To sum up, the utility model discloses following beneficial effect has:

through setting up intake pipe and dust removal bucket into tangent relation, behind the flue gas got into the dust removal bucket in the boiler, owing to be tangential direction coming in, can carry out spiral motion along with the dust removal bucket inner wall, after the contact liquid surface, large granular material such as smoke and dust in the flue gas will be adsorbed by liquid, and then reach dust removal effect. The setting of spiral plate can let the flue gas along the spiral plate toward staving below motion, reachs the liquid surface. The operation case communicates with each other with the dust removal bucket, can observe the condition of the interior liquid of dust removal bucket through the operation case, adds liquid, changes operations such as liquid, also can guarantee the liquid level height simultaneously, can not be higher than blast pipe bottom position, also can not hang down excessively, leads to the flue gas not to contact the liquid surface and just follow the blast pipe discharge. The spiral movement of the smoke circulating in the inner part is better realized by the design of the guide surface of the exhaust pipe. Whole dust collector, structural design is reasonable, and the dust removal effect is obvious, and the cost is lower.

Drawings

FIG. 1 is a schematic perspective view of a spiral dust-settling device of a boiler;

FIG. 2 is a schematic perspective view of a spiral dust-settling device of a boiler at another angle;

FIG. 3 is a cross-sectional view of a helical dust fall device for a boiler;

FIG. 4 is another cross-sectional view of the helical dust reduction device of the boiler;

in the figure, 100, a dust falling device; 10. a dust falling barrel; 11. a spiral plate; 111. a starting end; 112. a terminal end; 20. an operation box; 30. an air inlet pipe; 31. an air inlet; 40. an exhaust pipe; 41. a guide surface.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

An embodiment of the utility model provides a spiral dust device 100 of boiler, including dust removal bucket 10, liquid has been held in the bucket, preferably water, of course also can add the dust remover in aqueous, the purifying agent etc. also include operation box 20, operation box 20 is linked together with dust removal bucket 10, liquid in this kind of bucket all is intercommunication each other, the at least partial uncovered setting in operation box 20 top, just can observe the condition of dust removal bucket 10 and the interior liquid of operation box 20 through this uncovered position, for example the colour of liquid, the liquid level of liquid, the cleanliness of liquid etc. then operate through the uncovered position of operation box 20, for example, change liquid, add liquid etc.. The dust falling device 100 further includes an air inlet pipe 30, the air inlet pipe 30 is tangent to the dust falling barrel 10, for example, when the air inlet pipe 30 is rectangular, a side surface close to the dust falling barrel 10 is tangent to the inner surface of the dust falling barrel 10, or when the air inlet pipe 30 is not rectangular, a vertical cross section of any one of the air inlet pipes 30 is tangent to the inner surface of the dust falling barrel 10, which is not limited herein. Air inlet 31 has been seted up in tangent place to intake pipe 30, and the flue gas in the boiler just passes through air inlet 31, enters into dust fall bucket 10, and can form spiral movement track along the medial surface motion of dust fall bucket 10, can let the flue gas keep the certain speed to reach the liquid surface like this, and then by the large particle matters such as smoke and dust in the liquid absorption flue gas. Dust device 100 still includes blast pipe 40, and one end setting is in dust fall bucket 10, and the other end stretches out in the top of dust fall bucket 10, will enter into the flue gas discharge of dust fall bucket 10. The horizontal height of the bottom of the exhaust pipe 40 is not lower than the horizontal height of the top of the operation box 20, so that the bottom of the exhaust pipe 40 cannot go into liquid in the dust falling barrel 10, dangerous accidents caused by non-exhaust are avoided, and optionally, the exhaust pipe 40 is in a chimney shape and is beneficial to exhaust smoke.

Optionally, a spiral plate 11 is further disposed on the inner side surface of the dust falling barrel 10, and includes a start end 111 and a tail end 112, the spiral plate 11 is from top to bottom on the inner side surface of the dust falling barrel 10, and the flue gas spirally moves downward along the spiral plate 11 and then reaches the liquid surface, so as to achieve the dust falling purpose. Preferably, the starting end 111 is located right above the air inlet 31, and the end 112 is located below the liquid level of the liquid in the dust falling barrel 10, so that the flue gas moves along the spiral plate 11 when entering from the air inlet 31. Further preferably, the air inlet pipe 30 is rectangular, as shown in fig. 4, the width m of the spiral plate 11 is greater than the width b (not shown) of the air inlet 31, so that the spiral plate 11 can completely cover the flue gas in the air inlet 31, and most of the flue gas directly moves spirally towards the liquid surface, further preferably, the width m of the spiral plate 11 is not less than the height n of the air inlet 31, and the flue gas below the air inlet 31 is not too far away from the spiral plate 11 and does not move along the spiral plate 11, thereby achieving the purpose of sufficient dust reduction. The utility model discloses a further embodiment, intake pipe 30 is set up to the cylinder shape, and the width of spiral plate 11 is greater than intake pipe 30's diameter, like this can guarantee that spiral plate 11 can all cover the flue gas of air inlet 31 for most flue gas directly passes to liquid surface helical motion, reaches better dust fall effect.

Alternatively, the air inlet pipe 30 may be disposed horizontally or obliquely upward, and as shown in fig. 3 and 4, when the air inlet pipe 30 is disposed horizontally, the flue gas moves along the inner wall of the dust removing barrel 10, or along the spiral plate 11; when the air inlet pipe 30 is arranged obliquely upwards, the flue gas can move towards the liquid surface more quickly, the speed per hour of the flue gas and the liquid surface is higher, and large particle substances such as smoke dust and the like can be adsorbed on the liquid surface more easily. Further, the air inlet pipe 30 can be connected with an induced draft fan (not shown), so that the flue gas in the boiler can better reach the dust falling barrel 10 from the air inlet pipe 30.

Alternatively, the operation box 20 is arranged to be half-open, and referring to fig. 1, the height of the open part is lower than that of the non-open part, so that the liquid level inside the operation box 20 and the dedusting barrel 10 is not higher than that of the open part of the operation box 20, wherein when the flue gas velocity is too high, liquid fluctuation is caused, and the top of the non-open part of the operation box can also play a role in buffering the liquid fluctuation. Further, the lowest point of the exhaust pipe 40 is flush with the highest point of the part of the operation box 20 which is not open, so that the position of the bottom of the exhaust pipe 40 can be determined, the distance between the liquid level line of the liquid in the dust falling barrel 10 and the bottom of the exhaust pipe 40 can be observed, the size of the space where the flue gas in the dust falling barrel 10 can enter the exhaust pipe 40 can be known, and the exhaust control can be realized by controlling the liquid level of the liquid, for example, the liquid is added or reduced. Further optionally, a lowest liquid level line is further provided on the work box 20 for reminding of adding liquid. The lowest liquid level line is flush with the tail end 112 of the spiral plate 11, so that part of the spiral plate 11 is always below or just at the liquid level, and the flue gas entering the dust falling barrel 10 can certainly reach the liquid surface directly along the spiral plate 11, thereby realizing effective dust falling.

Optionally, the side wall of the exhaust pipe 40 is provided with an annular guide surface 41 for guiding the flue gas to the side wall of the dust removing barrel 10; preferably, the height of the guiding surface 41 is lower than the starting end 111 of the spiral plate 11, so that part of the flue gas is guided to the lower part of the spiral plate 11, continues to move along the lower part of the spiral plate 11, and reaches the liquid surface for further dust reduction.

Therefore, the utility model provides an embodiment, simple structure, nevertheless reasonable in design can realize the purpose to boiler flue gas dust fall better.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a spiral dust device of boiler which characterized in that includes:

a dust falling barrel, wherein liquid is contained in the barrel;

the operation box is communicated with the dust falling barrel, and the top of the operation box is at least partially open so as to observe the liquid conditions in the operation box and the dust falling barrel;

the air inlet pipe comprises an air inlet, the air inlet introduces the flue gas generated by the boiler into the dust falling barrel from the air inlet, and the air inlet pipe is arranged in a tangent manner with the dust falling barrel so that the flue gas moves along the barrel wall of the dust falling barrel when entering the dust falling barrel;

the dust falling barrel is arranged in the dust falling barrel, the other end of the dust falling barrel extends out of the dust falling barrel, and the horizontal height of the bottom of the exhaust pipe is not lower than that of the top of the operation box.

2. The spiral dust falling device for the boiler according to claim 1, characterized in that: still be provided with the spiral board on the inboard bucket wall of dust fall bucket, the spiral board includes initiating terminal and end, the initiating terminal is located directly over the air inlet, the end is located below the liquid level line of liquid in the dust fall bucket.

3. The spiral dust falling device for the boiler according to claim 2, characterized in that: the air inlet pipe is cuboid, and the width of the spiral plate is larger than that of the air inlet pipe; or the air inlet pipe is in a cylindrical shape, and the width of the spiral plate is not less than the diameter of the air inlet pipe.

4. The spiral dust falling device for the boiler according to claim 1, characterized in that: the air inlet pipe is arranged obliquely upwards, and flue gas generated by the boiler enters the dust falling barrel along the air inlet pipe obliquely downwards.

5. The spiral dust falling device for the boiler according to claim 1, characterized in that: the operation box is arranged in a semi-open manner, and the height of the open part of the operation box is lower than that of the part of the operation box which is not open; the lowest point of the bottom of the exhaust pipe is flush with the highest point of the part, which is not opened, of the operation box, so that the distance between the liquid level line of the liquid in the dust falling barrel and the bottom of the exhaust pipe can be observed.

6. The spiral dust falling device for the boiler according to claim 2, characterized in that: the operation box is provided with a lowest liquid level line, and the lowest liquid level line is flush with the tail end of the spiral plate.

7. The spiral dust falling device for the boiler according to claim 2, characterized in that: the side wall of the exhaust pipe is provided with an annular guide surface.

8. The spiral dust falling device for the boiler according to claim 7, characterized in that: the height of the annular guide surface is lower than the height of the starting end of the spiral plate.

9. The spiral dust falling device for the boiler according to claim 1, characterized in that: the liquid conditions in the operation box and the dust falling barrel comprise the liquid level line of the liquid, the cleanliness of the liquid and the color of the liquid.

10. The spiral dust falling device for the boiler according to claim 1, characterized in that: the exhaust pipe is chimney-shaped.