CN212188317U - Waste gas treatment device suitable for biomass fuel - Google Patents
Waste gas treatment device suitable for biomass fuel Download PDFInfo
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- CN212188317U CN212188317U CN202020656801.4U CN202020656801U CN212188317U CN 212188317 U CN212188317 U CN 212188317U CN 202020656801 U CN202020656801 U CN 202020656801U CN 212188317 U CN212188317 U CN 212188317U
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Abstract
The utility model belongs to the technical field of exhaust-gas treatment and utilization, more specifically say, relate to a waste gas treatment device suitable for biomass fuel. It comprises an elution tower and a spray tower; the elution tower is internally provided with eluent, and the bottom of the spray tower is provided with absorption liquid. The utility model discloses synthesize and utilize elution tower and spray column, the self characteristic of make full use of biomass fuel waste gas will remove dust and integrate comprehensive treatment with SOx/NOx control, will tentatively purify and combine together with deep purification, and it is good to have a purifying effect, and the running cost is low, advantages such as operation simple accurate.
Description
Technical Field
The utility model belongs to the technical field of exhaust-gas treatment and utilization, more specifically say, relate to a waste gas treatment device suitable for biomass fuel.
Background
The biomass fuel is a novel clean fuel which is prepared by crushing, mixing, extruding, drying and the like agricultural and forestry wastes (such as straws, sawdust, bagasse, rice chaff and the like) into particles and can be directly combusted. There are significant differences in the respective properties of bio-fuels from traditional fossil fuels. The biomass fuel has the advantages of wide source, relatively low price, low sulfur content in waste gas generated by combustion and the like. Meanwhile, the biomass fuel has some self problems, such as low heat value, large amount of combustion and generation of a large amount of plant ash, which brings huge pressure to dust removal equipment. Due to the above differences, if the conventional coal-fired waste gas treatment device is directly applied to the waste gas treatment of biomass fuel, the effect is not good, and resource waste is also caused. Therefore, how to perform efficient comprehensive treatment on the waste gas generated by the combustion of the biomass fuel is a topic with wide application prospect and great challenge.
Disclosure of Invention
To the not enough of prior art existence, the utility model provides a waste gas treatment device suitable for biomass fuel.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: an exhaust gas treatment device suitable for biomass fuel comprises an elution tower and a spray tower; the elution tower is vertically arranged, and the lower part of the elution tower is conical; eluent is stored in the elution tower; the top of the elution tower is provided with a first exhaust pipe, the lowest part of the bottom of the elution tower is provided with a first drain outlet, and the side wall of the lower part of the elution tower is provided with a first air inlet pipe lower than the liquid level of the eluent; a stirring paddle is arranged in the elution tower and is driven by a stirring motor; the first air inlet pipe is connected with an air inlet fan.
The spray tower is vertically arranged, and the bottom of the spray tower is stored with absorption liquid; a second exhaust pipe is arranged at the top of the spray tower, a second sewage draining outlet is arranged at the lowest part of the bottom of the spray tower, and a second air inlet pipe lower than the liquid level of the absorption liquid is arranged on the side wall of the lower part of the spray tower; an air equalizing plate is arranged above the liquid level of the absorption liquid in the spray tower; a spraying device is arranged above the air equalizing plate; a second water filtering plate is arranged above the spraying device; the side wall of the spray tower is also provided with an overflow pipe, and the outlet height of the overflow pipe is flush with the liquid level of the absorption liquid; the first exhaust pipe is connected with the second air inlet pipe through a pipeline.
In the above waste gas treatment device for biomass fuel, the eluent and the absorption liquid both adopt the prior art, and are usually alkaline solutions containing a desulfurizing agent and a denitrifying agent. When the device uses, in stirring on one side with waste gas by air intake fan drum income eluate, get rid of particulate matter such as plant ash that mix with in the waste gas, get rid of most acidic sulphur containing nitre waste gas component simultaneously. The waste gas after being primarily purified flows out of the first exhaust pipe, then flows into the absorption liquid through the second air inlet pipe, is purified again, then flows through the air equalizing plate upwards, forms convection motion with water mist sprayed by the spraying device, and is discharged from the second exhaust pipe after the waste gas after being washed by the water mist flows upwards through the second water filtering plate to remove water vapor. And while the spraying device continuously sprays the absorption liquid, the absorption liquid at the bottom of the spraying tower continuously overflows from the overflow pipe and is collected in the closed storage tank, and then the absorption liquid is pumped to the spraying device for circulation. A large amount of particulate matters contained in the waste gas are eluted, accumulated at the bottom of the elution tower and discharged from the first discharge port after accumulating to a certain amount. Because the particles of plant ash and the like in the waste gas contain a large amount of alkaline substances, the alkaline substances are partially dissolved and accumulated in the eluent after elution, and react with the acidic sulfur-containing and nitrate-containing components in the waste gas to form salt, thereby fully utilizing the self characteristics of the waste gas to carry out the aim of comprehensive treatment.
The utility model has the further preferable proposal that a first water filtering plate is arranged above the liquid level of the eluent in the elution tower; the first water filtering plate is formed by arranging a group of Z-shaped partition plates.
The utility model has the further preferable proposal that the first sewage draining port is also connected with a sewage draining screw device; the outlet direction of the sewage draining screw device is inclined downwards, and the included angle between the outlet direction of the sewage draining screw device and the horizontal direction is in the range of 8-30 degrees, and the preferred included angle is 15 degrees.
The utility model discloses a further preferred scheme is, still establish ties booster fan and flow control valve between first exhaust pipe and the second intake pipe.
The utility model discloses a further preferred scheme is, spray set includes total shower and a set of atomizer that links to each other with total shower, and the atomizer spout is down and be covered with the cross section in the spray column.
The utility model discloses a further preferred scheme is that the aerofoil cross-section is cellular, is covered with regular hexagon's sieve mesh in the cross-section.
The utility model has the further preferable proposal that a porous baffle is horizontally arranged in the spray tower; the position of the porous baffle is lower than the liquid level of the absorption liquid and higher than the second air inlet pipe.
Has the advantages that: compared with the prior art, the utility model provides a waste gas treatment device suitable for biomass fuel, the self characteristic of make full use of biomass fuel waste gas will remove dust and integrate comprehensive treatment with SOx/NOx control, will tentatively purify and combine together with deep purification, and it is good to have a purifying effect, and the running cost is low, advantages such as operation simple accurate.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of a wind-equalizing plate;
FIG. 3 is a schematic cross-sectional view of a perforated baffle plate.
In the figure, the device comprises an elution tower 1, a spray tower 2, a first exhaust pipe 11, a first sewage discharge port 12, a first air inlet pipe 13, a stirring paddle 14, a stirring motor 15, an air inlet fan 16, a first water filtering plate 17, a booster fan 18, a sewage discharge screw device 19, a second exhaust pipe 21, a second sewage discharge port 22, a second air inlet pipe 23, an air equalizing plate 24, a spray device 25, a second water filtering plate 26, an overflow pipe 27 and a porous baffle 28.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Examples
An exhaust gas treatment device suitable for biomass fuel, as shown in figure 1, comprises an elution tower 1 and a spray tower 2; the elution tower 1 is vertically arranged, and the lower part of the elution tower is conical; eluent is stored in the elution tower 1; the top of the elution tower 1 is provided with a first exhaust pipe 11, the lowest part of the bottom is provided with a first drain outlet 12, and the side wall of the lower part is provided with a first air inlet pipe 13 lower than the liquid level of the eluent; a stirring paddle 14 is arranged in the elution tower 1, and the stirring paddle 14 is driven by a stirring motor 15; an intake fan 16 is connected to the first intake pipe 13.
The spray tower 2 is vertically arranged, and absorption liquid is stored at the bottom; a second exhaust pipe 21 is arranged at the top of the spray tower 2, a second sewage outlet 22 is arranged at the lowest part of the bottom of the spray tower, and a second air inlet pipe 23 lower than the liquid level of the absorption liquid is arranged on the side wall of the lower part of the spray tower; an air equalizing plate 24 is arranged above the liquid level of the absorption liquid in the spray tower 2; a spraying device 25 is arranged above the air equalizing plate 24; a second water filtering plate 26 is arranged above the spraying device 25; an overflow pipe 27 is further arranged on the side wall of the spray tower 2, and the outlet height of the overflow pipe 27 is flush with the liquid level of the absorption liquid; the first exhaust pipe 11 and the second intake pipe 23 are connected by a pipe.
Above-mentioned be applicable to biomass fuel's exhaust treatment device during the use, in stirring simultaneously with waste gas by air intake fan 16 drum eluent, get rid of particulate matter such as plant ash that mix with in the waste gas, get rid of most acidic sulphur containing nitre waste gas component simultaneously. The primarily purified waste gas flows out of the first exhaust pipe 11, then flows into the absorption liquid through the second air inlet pipe 23, is purified again, then flows upwards through the air equalizing plate 24, forms convection motion with water mist sprayed by the spraying device 25, and flows upwards through the second water filtering plate 26 to remove water vapor, and then is discharged from the second exhaust pipe 21. While the spraying device 25 continuously sprays the absorption liquid, the absorption liquid at the bottom of the spray tower 2 continuously overflows from the overflow pipe 27 and is collected, for example, in an externally-connected closed storage tank (not shown), and then is pumped from the storage tank to the spraying device 25 for circulation. A large amount of particulate matters contained in the exhaust gas are eluted and accumulated at the bottom of the elution column 1, and are discharged from the first drain port 12 after accumulated to a certain amount.
Further, a first water filtering plate 17 is arranged above the liquid level of the eluent in the elution tower 1; the first water filter plate 17 is formed by arranging a group of Z-shaped partition plates. The first water filter plate 17 is used for filtering out liquid drops entrained in the gas.
Further, a sewage discharge screw device 19 is connected to the first sewage discharge port 12; the outlet of the sewage screw device 19 is inclined downwards, and the included angle between the outlet and the horizontal direction is 8-30 degrees, and is preferably 15 degrees. A sewage discharge screw device 19 is arranged to discharge sludge at the bottom of the elution tower 1.
Further, a booster fan 18 and a flow regulating valve are also connected in series between the first exhaust pipe 11 and the second intake pipe 23.
Further, the spraying device 25 comprises a main spraying pipe and a group of atomizing nozzles connected with the main spraying pipe, and the nozzles of the atomizing nozzles face downwards and are distributed on the cross section in the spraying tower 2.
Further, the cross section of the air-equalizing plate 24 is honeycomb-shaped, and regular hexagonal sieve holes are distributed in the cross section, as shown in fig. 2.
Further, a porous baffle 28 is horizontally arranged in the spray tower 2; the perforated baffle 28 is positioned below the absorption liquid level and above the second inlet conduit 23 as shown in figure 3. The porous baffle 28 has a certain shunting effect on the exhaust gas, so that the exhaust gas stays in the absorption liquid for a longer time, and meanwhile, the up-and-down convection motion of the absorption liquid can be reduced, and a small amount of particles in the absorption liquid are favorably deposited at the bottom.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements can be made without departing from the principle of the present invention, and these improvements should also be regarded as the protection scope of the present invention.
Claims (7)
1. The utility model provides an exhaust treatment device suitable for biomass fuel which characterized in that: comprises an elution tower (1) and a spray tower (2); the elution tower (1) is vertically arranged, and the lower part of the elution tower is conical; eluent is stored in the elution tower (1); the top of the elution tower (1) is provided with a first exhaust pipe (11), the lowest part of the bottom is provided with a first drain outlet (12), and the side wall of the lower part is provided with a first air inlet pipe (13) lower than the liquid level of the eluent; a stirring paddle (14) is arranged in the elution tower (1), and the stirring paddle (14) is driven by a stirring motor (15); the first air inlet pipe (13) is connected with an air inlet fan (16);
the spray tower (2) is vertically arranged, and absorption liquid is stored at the bottom of the spray tower; a second exhaust pipe (21) is arranged at the top of the spray tower (2), a second sewage draining outlet (22) is arranged at the lowest position of the bottom of the spray tower, and a second air inlet pipe (23) lower than the liquid level of the absorption liquid is arranged on the side wall of the lower part of the spray tower; an air equalizing plate (24) is arranged above the liquid level of the absorption liquid in the spray tower (2); a spraying device (25) is arranged above the air equalizing plate (24); a second water filtering plate (26) is arranged above the spraying device (25); an overflow pipe (27) is further arranged on the side wall of the spray tower (2), and the outlet height of the overflow pipe (27) is flush with the liquid level of the absorption liquid; the first exhaust pipe (11) is connected with the second air inlet pipe (23) through a pipeline.
2. The exhaust gas treatment device for biomass fuel according to claim 1, wherein: a first water filtering plate (17) is arranged above the liquid level of the eluent in the elution tower (1); the first water filtering plate (17) is formed by arranging a group of Z-shaped partition plates.
3. The exhaust gas treatment device for biomass fuel according to claim 1, wherein: the first sewage discharge port (12) is also connected with a sewage discharge screw device (19); the outlet direction of the sewage discharging screw device (19) is inclined downwards, and the included angle between the outlet direction of the sewage discharging screw device and the horizontal direction is 8-30 degrees.
4. The exhaust gas treatment device for biomass fuel according to claim 1, wherein: and a booster fan (18) and a flow regulating valve are also connected in series between the first exhaust pipe (11) and the second air inlet pipe (23).
5. The exhaust gas treatment device for biomass fuel according to claim 1, wherein: the spraying device (25) comprises a main spraying pipe and a group of atomizing nozzles connected with the main spraying pipe, and the nozzles of the atomizing nozzles face downwards and are distributed on the cross section in the spraying tower (2).
6. The exhaust gas treatment device for biomass fuel according to claim 1, wherein: the cross section of the air equalizing plate (24) is honeycomb-shaped, and regular hexagonal sieve pores are distributed in the cross section.
7. The exhaust gas treatment device for biomass fuel according to claim 1, wherein: a porous baffle (28) is horizontally arranged in the spray tower (2); the position of the porous baffle (28) is lower than the liquid level of the absorption liquid and higher than the second air inlet pipe (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020656801.4U CN212188317U (en) | 2020-04-27 | 2020-04-27 | Waste gas treatment device suitable for biomass fuel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020656801.4U CN212188317U (en) | 2020-04-27 | 2020-04-27 | Waste gas treatment device suitable for biomass fuel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212188317U true CN212188317U (en) | 2020-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020656801.4U Expired - Fee Related CN212188317U (en) | 2020-04-27 | 2020-04-27 | Waste gas treatment device suitable for biomass fuel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212188317U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114849465A (en) * | 2022-04-15 | 2022-08-05 | 佛山市蓝宇环保科技有限公司 | Energy-recovery type energy-saving environment-friendly waste gas treatment spray tower |
-
2020
- 2020-04-27 CN CN202020656801.4U patent/CN212188317U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114849465A (en) * | 2022-04-15 | 2022-08-05 | 佛山市蓝宇环保科技有限公司 | Energy-recovery type energy-saving environment-friendly waste gas treatment spray tower |
| CN114849465B (en) * | 2022-04-15 | 2023-09-08 | 佛山市蓝宇环保科技有限公司 | Energy recovery type energy-saving environment-friendly waste gas treatment spray tower |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201222 |
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| CF01 | Termination of patent right due to non-payment of annual fee |