CN211514060U - Sintering machine tail gas denitration tower - Google Patents
Sintering machine tail gas denitration tower Download PDFInfo
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- CN211514060U CN211514060U CN201922300851.9U CN201922300851U CN211514060U CN 211514060 U CN211514060 U CN 211514060U CN 201922300851 U CN201922300851 U CN 201922300851U CN 211514060 U CN211514060 U CN 211514060U
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Abstract
The utility model relates to a sintering machine tail gas denitration tower, which comprises a tower body, establish the exhaust duct at the tower body top surface, establish the admission line on the tower body lateral wall, feed liquor pipe and fluid-discharge tube, a plurality of column plates on the tower body inner wall are established at the top-down interval, the bubble cap of equipartition on the column plate, the equipartition is circumferential gas pocket on the bubble cap, establish perpendicularly on the column plate and with the connecting pipe of column plate intercommunication, establish the hole of permeating water on the column plate, establish the main pipeline of wasing on the upper surface of column plate, establish on the upper surface of column plate and wash the supplementary pipeline of being connected with main and establish the hole for water spraying at supplementary. Each bubble cap is internally provided with a connecting pipe, and a gap is formed between the connecting pipe and the inner wall of the bubble cap. The utility model discloses the mode that uses wet process denitration is handled sintering machine tail gas, has thoroughly solved the problem of catalyst poisoning and jam in the dry process denitration.
Description
Technical Field
The utility model belongs to the technical field of the technique of sintering machine tail gas treatment and specifically relates to a sintering machine tail gas denitration tower is related to.
Background
The sintering machine is suitable for sintering operation of large-scale ferrous metallurgy sintering plants, is main equipment in the air draft sintering process, can sinter concentrate powder and rich mineral powder with different components and different granularities into blocks, and partially eliminates harmful impurities such as sulfur, phosphorus and the like contained in the ore.
Denitration treatment of sintering machine tail gas is generally dry denitration, equipment for the dry denitration has a simple structure and low investment, but is easy to block, components in the sintering machine tail gas are complex, and a catalyst used for denitration has risks of blocking and poisoning. There is also a treatment mode of adding a dust removal device before dry denitration, but only dry dust removal can be used for ensuring the temperature requirement of dry denitration, and in order to avoid the temperature drop range of sintering machine tail gas from being too large, the treatment time of dry dust removal is also very limited, although a part of dust can be removed, the risk of catalyst blockage and poisoning still cannot be avoided.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims at providing a sintering machine tail gas denitration tower, this denitration tower use wet process denitration, need not to use the catalyst, catalyst poisoning and the problem of jam in having avoided dry process denitration.
The above object of the present invention can be achieved by the following technical solutions:
a sintering machine tail gas denitration tower comprises:
the top surface of the tower body is provided with an exhaust pipeline, and the side wall of the tower body is provided with an air inlet pipeline, a liquid inlet pipe and a liquid outlet pipe;
a plurality of tower plates which are arranged on the inner wall of the tower body at intervals from top to bottom and are positioned above the air inlet pipeline and the liquid discharge pipe and below the liquid inlet pipe;
the bubble caps are uniformly distributed on the tower plate, and air holes are uniformly distributed on the circumference of the bubble caps;
the connecting pipe is vertically arranged on the tower plate, and the lower end of the connecting pipe is communicated with the tower plate;
water permeable holes are arranged on the tower plates;
the main cleaning pipeline is arranged on the upper surface of the tower plate, and one end of the main cleaning pipeline extends out of the tower body; and
the auxiliary cleaning pipeline is arranged on the upper surface of the tower plate, is connected with the main cleaning pipeline and is provided with a water spraying hole;
each bubble cap is internally provided with a connecting pipe, and a gap is formed between the connecting pipe and the inner wall of the bubble cap;
the connecting line of the centers of the adjacent water permeable holes on the same tower plate passes through the center of the tower plate.
By adopting the technical scheme, the tail gas of the sintering machine enters the tower body through the gas inlet pipeline, flows from bottom to top, sequentially passes through each tower plate and emerges from the bubble cap on the tower plate to react with the solution flowing on the tower plate, the dust in the tail gas of the sintering machine is precipitated on the tower plate in the reaction process, and the tail gas flows out of the tower body along with the solution flowing on the tower plate under the flushing of the auxiliary cleaning pipeline. The tower body is provided with a plurality of tower plates, so that the tail gas of the sintering machine can be reacted for many times, and a large amount of bubbles can be generated when the tail gas of the sintering machine passes through the bubble cap, the contact area with the solution is increased, and the reaction is more sufficient.
The utility model discloses further set up to: the top surface of the bubble cap is a curved surface.
By adopting the technical scheme, the speed loss of the sintering machine tail gas can be reduced by the curved bubble cap top surface.
The utility model discloses further set up to: the upper surface of the tower plate is an inclined plane;
the water permeable holes are positioned on the lower side of the upper surface of the tower plate.
Through adopting above-mentioned technical scheme, the dust is after the sediment on the column plate, can be easier along with the flowing solution outflow tower body.
The utility model discloses further set up to: an arc water guide plate is arranged on the inner wall of the tower body;
the arc-shaped water guide plate is positioned right below the water permeable hole.
Through adopting above-mentioned technical scheme, the solution that falls from the hole of permeating water can fall on the arc water guide board earlier, then on the column plate of below flows along the arc water guide board, can effectively reduce the impact of solution to the column plate like this, the life of extension column plate.
The utility model discloses further set up to: a water chute is arranged on the inner wall of the tower body and is vertically arranged;
the upper end of the water guide groove is positioned below the water permeable hole, and the lower end of the water guide groove is positioned above the arc-shaped water guide plate corresponding to the water permeable hole.
Through adopting above-mentioned technical scheme, the guiding gutter can play the interception effect, avoids on the impurity in the solution splashes the inner wall of tower body.
The utility model discloses further set up to: and the water spray holes of the auxiliary cleaning pipelines face to the bottom surface of the tower body.
Through adopting above-mentioned technical scheme, the solution that spouts from the hole for water spraying can be with the dust of depositing on the column plate rush away, avoids it to be detained on the column plate.
The utility model discloses further set up to: also comprises a sewage discharge part;
the sewage discharge part comprises a skirt arranged on the bottom surface of the tower body, a sewage discharge pipeline arranged on the bottom surface of the tower body and a sewage discharge valve arranged on the sewage discharge pipeline.
Through adopting above-mentioned technical scheme, when opening the blowoff valve, can discharge the dust that deposits on the tower body bottom surface from the tower body, avoid it to pile up bottom the tower body, block up the fluid-discharge tube.
The utility model discloses further set up to: the bottom surface of the tower body is conical;
in the direction from top to bottom, the diameter of the bottom surface of the tower body tends to decrease.
Through adopting above-mentioned technical scheme, the dust falls back on the bottom surface of tower body, can flow to the lowest of bottom surface in the effect of gravity and rivers disturbance, can make the dust concentrate more like this, and the clearance also more thoroughly, the easy remaining condition that appears of bottom surface edge when having avoided the tower body bottom surface to be the plane.
To sum up, the utility model discloses a beneficial technological effect does:
1. tail gas of the sintering machine enters the tower body through the gas inlet pipeline, flows from bottom to top, sequentially passes through each tower plate and emerges from a bubble cap on the tower plate to react with solution flowing on the tower plate, dust in the tail gas of the sintering machine is deposited on the tower plate in the reaction process, and flows out of the tower body along with the solution flowing on the tower plate under the flushing of the auxiliary cleaning pipeline. The tower body is provided with a plurality of tower plates, so that the tail gas of the sintering machine can be reacted for many times, and a large amount of bubbles can be generated when the tail gas of the sintering machine passes through the bubble cap, the contact area with the solution is increased, and the reaction is more sufficient.
2. Solution from permeating water the hole and falling down can fall on the arc water guide plate earlier, then along the arc water guide plate flow to the column plate of below on, can effectively reduce the impact of solution to the column plate like this, the life of extension column plate.
3. The bottom surface of tower body is at the bottom of the toper, and the dust can flow to the lower of bottom surface in the effect of gravity and rivers disturbance after falling on the bottom surface of tower body, can make the dust concentrate more like this, and the clearance also more thorough, the easy remaining condition that appears in bottom surface edge when having avoided the tower body bottom surface to be the plane.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of the present invention.
Fig. 2 is a schematic view of the internal structure of fig. 1, and the direction of the cross-section is vertical.
Fig. 3 is a schematic view of the internal structure of fig. 1, in which the tower body is hidden.
Fig. 4 is a schematic view of the internal structure of fig. 1, and the cross-sectional direction in the figure is a horizontal direction.
Fig. 5 is a schematic view illustrating installation of a blister according to an embodiment of the present invention.
In the figure, 11, a tower body, 12, tower plates, 13, bubble caps, 14, connecting pipes, 15, water permeable holes, 16, a main cleaning pipeline, 17, an auxiliary cleaning pipeline, 21, an arc-shaped water guide plate, 22, a water guide groove, 3, a sewage discharge part, 31, a skirt, 32, a sewage discharge pipeline, 33, a sewage discharge valve, 111, an exhaust pipeline, 112, an air inlet pipeline, 113, a liquid inlet pipe, 114 and a liquid outlet pipe; 131. air holes 171, water spray holes.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, for the embodiment of the present invention, a sintering machine tail gas denitration tower is disclosed, which mainly comprises a tower body 11, a tower plate 12, a bubble cap 13, a connecting pipe 14, etc., wherein the main part of the denitration tower is the tower body 11, four pipelines are arranged on the tower body 11, namely an exhaust pipeline 111, an air inlet pipeline 112, a liquid inlet pipe 113 and a liquid discharge pipe 114, the air inlet pipeline 112 is located on the side wall of the tower body 11 near the bottom surface of the tower body 11, and is used for guiding sintering machine tail gas into the tower body 11; the exhaust pipeline 111 is positioned on the top surface of the tower body 11 and is used for discharging the treated tail gas of the sintering machine from the tower body 11; the liquid inlet pipe 113 is located on the side wall of the tower body 11 near the top surface of the tower body 11, and the liquid outlet pipe 114 is located on the side wall of the tower body 11 near the bottom surface of the tower body 11 for circulating the solution in the tower body 11 from top to bottom.
A plurality of tower plates 12 are horizontally fixed on the inner wall of the tower body 11, the tower plates 12 are all horizontally arranged, the distances between the adjacent tower plates 12 are equal, and the tower plates are positioned above the air inlet pipeline 112 and the liquid outlet pipeline 114 and below the liquid inlet pipeline 113.
Referring to FIGS. 4 and 5, each tray 12 is provided with a connecting pipe 14, the connecting pipe 14 is vertically provided on the tray 12 and communicates with the tray 12 at a lower end thereof, and each connecting pipe 14 is provided with a bubble cap 13, and the bubble cap 13 covers the connecting pipe 14. There is a gap between the inner wall of the bubble cap 13 and the connecting tube 14 to provide a flow path for the sintering machine off-gas. The surface of the bubble cap 13 is also provided with air holes 131 uniformly, and the air holes 131 are in a circular array on the surface of the bubble cap 13 by taking the axis of the bubble cap 13 as a reference.
Referring to fig. 2, each tray 12 is also provided with a water permeable hole 15, the water permeable hole 15 being adapted to allow the solution on the tray 12 to flow to the tray 12 below. The projected centers of two water permeable holes 15 of adjacent trays 12 on any one tray 12 are connected by passing through the center of the tray 12, so that the distance between the two water permeable holes 15 in the horizontal direction can be maximized.
Referring to fig. 3 and 4, a main cleaning pipe 16 and a plurality of auxiliary cleaning pipes 17 are provided on the tower plate 12, one end of the main cleaning pipe 16 extends from the side wall of the tower body 11, and the auxiliary cleaning pipes 17 are connected to the main cleaning pipe 16, and are horizontally arranged and vertically arranged to the main cleaning pipe 16. A gap is present between the main wash pipe 16 and the auxiliary wash pipe 17 and the upper surface of the tray 12, which are fixed by brackets.
Referring to fig. 5, the auxiliary cleaning pipe 17 is provided with water spray holes 171, and the water spray holes 171 are directed toward the bottom surface of the tower body 11 for blowing off the dust precipitated on the tower plate 12.
In the production process, tail gas of the sintering machine enters the tower body 11 through the gas inlet pipeline 112 and flows in the tower body 11 from bottom to top. During the flowing process, the tail gas of the sintering machine flows out from the air holes 131 on the bubble cap 13 after passing through the connecting pipe 14 on the tower plate 12 and the gap between the connecting pipe 14 and the bubble cap 13.
In the process that the tail gas of the sintering machine enters the tower body 11, the solution for denitration flows into the tower body 11 from the liquid inlet pipe 113. The solution entering the column 11 flows along the tray 11, forming a liquid layer on the tray 11, the bubble caps 13 on the tray 12 being located within the liquid layer. The solution from tray 12 flows through water permeable holes 15 to the next tray 12, thus forming a liquid layer on each tray 12, which bubbles all the bubble caps 13.
The solution flowing to the bottom of the tower body is discharged through a liquid discharge pipe 114, separated and adjusted in concentration, and then returned to the inside of the tower body 11 from a liquid inlet pipe 113, and the process is circulated. The tail gas of the sintering machine flows from bottom to top in the tower body 11, the solution flows from top to bottom in the tower body, the tail gas and the solution react at the bubble cap 13, and the nitrogen oxide in the tail gas of the sintering machine is absorbed by the solution.
The sintering machine tail gas is in the process of solution contact, dust in the tail gas can be deposited on the upper surface of the tower plate 12, part of the solution is injected into the main cleaning pipeline 16, then flows to each auxiliary cleaning pipeline 17 from the main cleaning pipeline 16, and finally is sprayed out from the water spraying holes 171. During the process of spraying the solution from the water spray holes 171, the dust precipitated on the tray 12 can be blown away, so that the dust can be carried away from the tower body 11 by the solution along with the flow of the solution.
In order to reduce the resistance when the sintering machine exhaust gas is ejected from the connecting pipe 14, the top surface of the bubble cap 13 is a curved surface, and the resistance of the curved surface is smaller than that of a flat surface, so that the flow velocity loss of the sintering machine exhaust gas can be reduced.
In the use, the sediment on the column plate 12 can be more and more, consequently adjust the upper surface of column plate 12 to the inclined plane, and the hole 15 that permeates water is located the lower one side on column plate 12 upper surface, and the slope mode of inclined plane keeps unanimous with the flow direction of solution on column plate 12, and the scouring action of solution is stronger, can accelerate the flow rate of sediment.
Referring to fig. 2 and 4, in the process that the solution flows downwards on the tower plates 12, the solution impacts the tower plates 12 below the tower plates 12, so that an arc-shaped water guide plate 21 is added on the inner wall of the tower body 11, and the arc-shaped water guide plate 21 is positioned right below the water permeable holes 15 on the tower plates 12, so that the impact force generated when the solution falls can be borne, the impact on the tower plates 12 below the tower plates can be reduced, and the service life of the tower plates 12 can be prolonged.
And considering that there is a deposit of dust in the solution, a water guide groove 22 is added to the inner wall of the tower body 11 in order to prevent the deposit from sputtering onto the inner wall of the tower body 11 during the falling. The water chute 22 is vertically fixed on the inner wall of the tower body 11 and is positioned between two adjacent tower plates 12, the upper end of the water chute is positioned right below the water permeable holes 15 on the upper tower plate 12, and the lower end of the water chute is positioned right above the arc-shaped water guide plate 21 between the two tower plates 12. Therefore, the solution can flow in the water chute 22 in the process of flowing down from the tower plate 12, and the side wall of the water chute 22 can play a role in intercepting, so that the solution is prevented from being splashed on the inner wall of the tower body 11.
Referring to fig. 2, in the long-time operation process, the sediment formed by the dust can be accumulated at the bottom of the tower body 11, in order to clean the sediment, a sewage discharge part 3 is additionally arranged on the tower body 11, the sewage discharge part 3 comprises a skirt 31, a sewage discharge pipeline 32, a sewage discharge valve 33 and the like, the skirt 31 is positioned on the bottom surface of the tower body 11, a distance is reserved between the tower body 11 and the ground, the sewage discharge pipeline 32 is fixed on the bottom surface of the tower body 11 and communicated with the interior of the tower body 11, and the sewage discharge valve 33 is arranged on the sewage discharge pipeline 32. When cleaning, the sediment on the bottom surface of the tower body 11 can flow out from the sewage pipeline 32 by opening the sewage valve 33 of the sewage pipeline 32.
Further, in the direction from top to bottom, the diameter of the bottom surface of the tower body 11 tends to decrease, that is, the bottom surface of the tower body 11 is a conical bottom, so that the sediment can be gathered towards the center of the bottom surface of the tower body 11, and the cleaning is more thorough.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a sintering machine tail gas denitration tower which characterized in that includes:
the tower body (11) is provided with an exhaust pipeline (111) on the top surface and an air inlet pipeline (112), a liquid inlet pipe (113) and a liquid outlet pipe (114) on the side wall;
a plurality of tower plates (12) which are arranged on the inner wall of the tower body (11) at intervals from top to bottom, are positioned above the air inlet pipeline (112) and the liquid outlet pipeline (114), and are positioned below the liquid inlet pipeline (113);
bubble caps (13) which are uniformly distributed on the tower plate (12) and are uniformly distributed with air holes (131) in the circumferential direction;
a connecting pipe (14) vertically arranged on the tower plate (12), and the lower end of the connecting pipe is communicated with the tower plate (12);
water permeable holes (15) arranged on the tower plate (12);
a main cleaning pipe (16) provided on the upper surface of the tray (12) and having one end extended from the tower body (11); and
an auxiliary cleaning pipeline (17) which is arranged on the upper surface of the tower plate (12), is connected with the main cleaning pipeline (16) and is provided with a water spraying hole (171);
each bubble cap (13) is internally provided with a connecting pipe (14), and a gap is formed between the connecting pipe (14) and the inner wall of the bubble cap (13);
the connecting lines of the centers of the adjacent water permeable holes (15) on the same tray (12) pass through the center of the tray (12).
2. The sintering machine tail gas denitration tower of claim 1, characterized in that: the top surface of the bubble cap (13) is a curved surface.
3. The sintering machine tail gas denitration tower of claim 1, characterized in that: the upper surface of the tower plate (12) is an inclined plane;
the water permeable holes (15) are located on the lower side of the upper surface of the tray (12).
4. The sintering machine tail gas denitration tower of claim 1, characterized in that: an arc water guide plate (21) is arranged on the inner wall of the tower body (11);
the arc water guide plate (21) is positioned right below the water permeable hole (15).
5. The sintering machine tail gas denitration tower of claim 4, characterized in that: a water chute (22) is arranged on the inner wall of the tower body (11), and the water chute (22) is vertically arranged;
the upper end of the water guide groove (22) is positioned below the water permeable hole (15), and the lower end of the water guide groove is positioned above the arc-shaped water guide plate (21) corresponding to the water permeable hole (15).
6. The sintering machine tail gas denitration tower of claim 1, characterized in that: the water spray holes (171) of the auxiliary cleaning pipelines (17) face to the bottom surface of the tower body (11).
7. The sintering machine tail gas denitration tower of claim 1, characterized in that: also comprises a sewage discharge part (3);
the sewage discharge part (3) comprises a skirt (31) arranged on the bottom surface of the tower body (11), a sewage discharge pipeline (32) arranged on the bottom surface of the tower body (11) and a sewage discharge valve (33) arranged on the sewage discharge pipeline (32).
8. The sintering machine tail gas denitration tower of claim 7, characterized in that: the bottom surface of the tower body (11) is conical;
the diameter of the bottom surface of the tower body (11) tends to decrease from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922300851.9U CN211514060U (en) | 2019-12-19 | 2019-12-19 | Sintering machine tail gas denitration tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922300851.9U CN211514060U (en) | 2019-12-19 | 2019-12-19 | Sintering machine tail gas denitration tower |
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| Publication Number | Publication Date |
|---|---|
| CN211514060U true CN211514060U (en) | 2020-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922300851.9U Active CN211514060U (en) | 2019-12-19 | 2019-12-19 | Sintering machine tail gas denitration tower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114653088A (en) * | 2022-04-15 | 2022-06-24 | 濮阳市联众兴业化工有限公司 | Mixed pentane precise separation device and use method thereof |
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2019
- 2019-12-19 CN CN201922300851.9U patent/CN211514060U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114653088A (en) * | 2022-04-15 | 2022-06-24 | 濮阳市联众兴业化工有限公司 | Mixed pentane precise separation device and use method thereof |
| CN114653088B (en) * | 2022-04-15 | 2024-03-08 | 濮阳市联众兴业化工有限公司 | Mixed pentane precise separation device and use method thereof |
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