阅读说明：本技术 脱硫塔 (Desulfurizing tower ) 是由 高文涛 吕智 于 2021-09-14 设计创作，主要内容包括：本发明提供了一种脱硫塔,所述脱硫塔包括塔体、浆液区以及喷淋区,所述塔体侧壁的底部设有进气口,所述塔体的顶部设有出气口；所述浆液区位于所述塔体内的底部,且处于所述进气口的下方；所述喷淋区位于所述塔体内的顶部且处于所述进气口和所述出气口之间,所述喷淋区与所述浆液区通过管道连通,所述喷淋区包括多个喷淋装置；所述喷淋装置包括主管体、连接套以及多个支管,所述主管体与所述管道连通；所述连接套转动套设于所述主管体的自由端外周,多个所述支管绕所述主管体的轴线均匀分布于所述连接套；所述支管的自由端设有第二喷头,相邻两个所述喷淋装置中的所述第二喷头喷出的液流路径相互交叉。本发明提供的脱硫塔提高煤气的脱硫效率。(The invention provides a desulfurizing tower which comprises a tower body, a slurry area and a spraying area, wherein the bottom of the side wall of the tower body is provided with an air inlet, and the top of the tower body is provided with an air outlet; the slurry area is positioned at the bottom in the tower body and is positioned below the air inlet; the spraying area is positioned at the top in the tower body and between the gas inlet and the gas outlet, the spraying area is communicated with the slurry area through a pipeline, and the spraying area comprises a plurality of spraying devices; the spraying device comprises a main pipe body, a connecting sleeve and a plurality of branch pipes, wherein the main pipe body is communicated with the pipeline; the connecting sleeve is rotatably sleeved on the periphery of the free end of the main pipe body, and the plurality of branch pipes are uniformly distributed on the connecting sleeve around the axis of the main pipe body; and the free ends of the branch pipes are provided with second spray heads, and liquid flow paths sprayed by the second spray heads in two adjacent spray devices are mutually crossed. The desulfurization tower provided by the invention can improve the desulfurization efficiency of coal gas.)

1. A desulfurization tower, comprising:

the tower comprises a tower body, wherein the bottom of the side wall of the tower body is provided with an air inlet, and the top of the tower body is provided with an air outlet;

the slurry area is positioned at the bottom in the tower body and is positioned below the air inlet; and

the spraying area is positioned at the top in the tower body and between the gas inlet and the gas outlet, the spraying area is communicated with the slurry area through a pipeline, and the spraying area comprises a plurality of spraying devices;

the spraying device comprises:

the main pipe body is communicated with the pipeline, a first spray head is arranged at the free end of the main pipe body, and a shunting opening is formed in the peripheral surface of the main pipe body;

the connecting sleeve is rotatably sleeved on the periphery of the free end of the main pipe body and covers the shunt opening; and

the branch pipes are uniformly distributed on the connecting sleeve around the axis of the main pipe body, the branch pipes are communicated with the diversion opening through the connecting sleeve, the free ends of the branch pipes are provided with second spray heads, the spraying directions of the second spray heads are downward, and the second spray heads have components parallel to the tangential direction of the connecting sleeve;

liquid flow paths sprayed by the second spray heads in two adjacent spray devices are mutually crossed.

2. The desulfurization tower of claim 1, wherein one end of the conduit is in communication with the slurry zone, and the other end is branched to form a plurality of fixed pipes, and the plurality of fixed pipes are sequentially arranged in the tower body in the vertical direction;

each fixed pipe is provided with a plurality of spraying devices, the main pipe body of each spraying device is communicated with the fixed pipe, and the spraying devices on two adjacent fixed pipes are distributed in a staggered mode in the axial direction of the fixed pipe.

3. The desulfurizing tower defined in claim 1, wherein the main pipe body is provided with two spacing steps at intervals along an axis thereof, and the connecting sleeve is positioned between the two spacing steps;

and sealing gaskets are respectively arranged between the two shaft ends of the connecting sleeve and the limiting step.

4. The desulfurization tower of claim 1, wherein a head plate is clamped to a free end of the main pipe body, and the head plate has a plurality of through holes distributed in an annular array, and the through holes form the first nozzle.

5. The desulfurization tower of claim 1, wherein the slurry zone is provided with a barrier net which divides the slurry zone into an upper space and a lower space which are communicated with each other, and the liquid inlet of the pipeline is communicated with the space below the barrier net.

6. The desulfurization tower of claim 1, wherein a turbulent flow zone is further provided below the spray zone, and the turbulent flow zone is located above the gas inlet.

7. The desulfurization tower of claim 6, wherein said turbulent flow zone comprises a plurality of baffles connected in series along a first predetermined path, said first predetermined path being perpendicular to the vertical direction, and adjacent said baffles being disposed at an angle to form peaks and valleys alternately along the first predetermined path;

a plurality of turbulence pipes are distributed on the spoiler along a second preset path, the second preset path is perpendicular to the vertical direction and the first preset path, an air inlet of the spoiler is close to the valley, an air outlet of the spoiler is close to the peak, and the turbulence pipes are communicated with spaces on the upper side and the lower side of the spoiler.

8. The desulfurization tower of claim 7, wherein said plurality of spray devices are arranged in rows and columns, wherein said plurality of spray devices are arranged along said first predetermined path to form a spray row, and wherein said plurality of spray devices are arranged along said second predetermined path to form a spray column;

the plate peaks are positioned right below the spraying columns or the spraying rows and are arranged in one-to-one correspondence with the spraying columns or the spraying rows.

9. The desulfurization tower of claim 6, wherein said turbulent flow zone comprises a plurality of flexible plates sequentially distributed along a third predetermined path, wherein a gap exists between adjacent flexible plates, and said third predetermined path is perpendicular to the up-down direction;

the utility model discloses a tower body, including the tower body, the tower body is equipped with the first side of elastic plate, the first side of elastic plate with the tower body rigid coupling, the second side of elastic plate with the tower body rotates to be connected, the rotation axis perpendicular to of second side the route is predetermine to the third and direction from top to bottom, the first side with the second side sets up relatively, the tower body is equipped with outward and is used for the drive second side pivoted drive arrangement, drive arrangement enables the elastic plate twists reverse and be the heliciform.

10. The desulfurization tower of claim 9, wherein said first side and said tower body and said second side and said drive means are each connected by said connecting plate, said connecting plate having a width that decreases in a direction away from said flexible plate.

Technical Field

The invention belongs to the technical field of coal gas desulfurization treatment, and particularly relates to a desulfurizing tower.

Background

China is a large coal using country, and combustible substances are burnt in a combustor (namely a boiler) to generate gas, so that the combustible substances are one of main emissions of a thermal power plant. Because the gas usually contains a large amount of nitrogen oxides NO_XSulfide SO₂And dust, which can cause acid rain with strong corrosivity on one hand, and discharged dust can cause atmospheric pollution and harm to health on the other hand, so that the coal gas must be subjected to desulfurization, denitrification and dedusting treatment before being discharged。

The desulfurization tower is tower equipment for performing desulfurization treatment on industrial waste gas. Most of the currently used spray in the tower is hollow conical spray guns, and when the pressure does not meet the rated requirement or individual spray guns are blocked in the actual operation process, the local atomization effect does not meet the standard, so that the spray liquid in the tower is unevenly distributed; the blast furnace gas after catalytic conversion enters from the bottom of the spray tower, and a large amount of gas escapes through the spray liquid gap, thereby greatly influencing the desulfurization effect.

Disclosure of Invention

The embodiment of the invention provides a desulfurizing tower, aiming at ensuring the uniformity of spraying liquid when spraying in the tower, improving the catalytic efficiency and optimizing the desulfurizing effect.

In order to achieve the purpose, the invention adopts the technical scheme that: provided is a desulfurization tower comprising:

the tower comprises a tower body, wherein the bottom of the side wall of the tower body is provided with an air inlet, and the top of the tower body is provided with an air outlet;

the slurry area is positioned at the bottom in the tower body and is positioned below the air inlet; and

the spraying area is positioned at the top in the tower body and between the gas inlet and the gas outlet, the spraying area is communicated with the slurry area through a pipeline, and the spraying area comprises a plurality of spraying devices;

the spraying device comprises:

the main pipe body is communicated with the pipeline, a first spray head is arranged at the free end of the main pipe body, and a shunting opening is formed in the peripheral surface of the main pipe body;

the connecting sleeve is rotatably sleeved on the periphery of the free end of the main pipe body and covers the shunt opening; and

the branch pipes are uniformly distributed on the connecting sleeve around the axis of the main pipe body, the branch pipes are communicated with the diversion opening through the connecting sleeve, the free ends of the branch pipes are provided with second spray heads, the spraying directions of the second spray heads are downward, and the second spray heads have components parallel to the tangential direction of the connecting sleeve;

liquid flow paths sprayed by the second spray heads in two adjacent spray devices are mutually crossed.

In a possible implementation manner, one end of the pipeline is communicated with the slurry area, and the other end of the pipeline is branched to form a plurality of fixed pipes which are sequentially arranged in the tower body along the up-down direction;

each fixed pipe is provided with a plurality of spraying devices, the main pipe body of each spraying device is communicated with the fixed pipe, and the spraying devices on two adjacent fixed pipes are distributed in a staggered mode in the axial direction of the fixed pipe.

In a possible implementation manner, the main pipe body is provided with two limiting steps at intervals along the axis thereof, and the connecting sleeve is positioned between the two limiting steps;

and sealing gaskets are respectively arranged between the two shaft ends of the connecting sleeve and the limiting step.

In a possible implementation manner, a nozzle plate is clamped at a free end of the main pipe body, and a plurality of through holes distributed in an annular array are formed in the nozzle plate and form the first nozzle.

In a possible implementation mode, the slurry area is provided with a blocking net, the blocking net divides the slurry area into an upper space and a lower space which are communicated, and the liquid inlet of the pipeline is communicated with the space below the blocking net.

In a possible implementation manner, a turbulent flow area is further arranged below the spraying area, and the turbulent flow area is located above the air inlet.

In some embodiments, the spoiler comprises a plurality of spoilers sequentially connected along a first preset path, the first preset path is perpendicular to the up-down direction, and the adjacent spoilers form an included angle therebetween so as to form plate peaks and plate valleys alternately distributed along the first preset path;

a plurality of turbulence pipes are distributed on the spoiler along a second preset path, the second preset path is perpendicular to the vertical direction and the first preset path, an air inlet of the spoiler is close to the valley, an air outlet of the spoiler is close to the peak, and the turbulence pipes are communicated with spaces on the upper side and the lower side of the spoiler.

In some embodiments, the plurality of spraying devices are distributed in rows and columns, wherein the plurality of spraying devices are distributed along the first preset path to form a spraying row, and the plurality of spraying devices are distributed along the second preset path to form a spraying column;

the plate peaks are positioned right below the spraying columns or the spraying rows and are arranged in one-to-one correspondence with the spraying columns or the spraying rows.

In some embodiments, the turbulent flow region includes a plurality of elastic plates sequentially distributed along a third preset path, a gap exists between adjacent elastic plates, and the third preset path is perpendicular to the up-down direction;

the utility model discloses a tower body, including the tower body, the tower body is equipped with the first side of elastic plate, the first side of elastic plate with the tower body rigid coupling, the second side of elastic plate with the tower body rotates to be connected, the rotation axis perpendicular to of second side the route is predetermine to the third and direction from top to bottom, the first side with the second side sets up relatively, the tower body is equipped with outward and is used for the drive second side pivoted drive arrangement, drive arrangement enables the elastic plate twists reverse and be the heliciform.

In some embodiments, the first side and the tower body, and the second side and the driving device are connected through the connecting plate, and the width of the connecting plate gradually decreases in a direction away from the elastic plate.

In the embodiment of the application, compared with the prior art, in the process of desulfurizing coal gas, the rotary spraying of the branch pipes and the intersection of liquid flow paths between the adjacent spraying devices enable the spraying area covered by each spraying device to be larger, the sprayed slurry to be distributed in the tower body more uniformly, and no gap exists between the adjacent spraying devices, so that the coal gas is prevented from escaping from the gap of the spraying devices, the coal gas is ensured to be in full contact with the sprayed slurry, the desulfurization efficiency of the coal gas is improved, and the desulfurization effect of the coal gas is optimized.

Drawings

Fig. 1 is a schematic front view of a desulfurizing tower according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;

fig. 3 is a schematic front view of a spraying device according to an embodiment of the present invention;

FIG. 4 is a schematic bottom view of a spraying device according to an embodiment of the present invention;

fig. 5 is a schematic front view of a desulfurizing tower according to a second embodiment of the present invention;

FIG. 6 is a schematic cross-sectional view taken along line B-B of FIG. 5;

FIG. 7 is a schematic view of a desulfurizing tower according to a second embodiment of the present invention;

fig. 8 is a schematic sectional view taken along line C-C in fig. 7.

Description of reference numerals:

10-a tower body; 11-an air inlet; 12-air outlet;

20-slurry zone; 21-a pipeline; 22-a stationary tube; 23-a barrier net;

30-a spraying area; 31-a spraying device; 311-a primary pipe; 312-a first showerhead; 313-a connecting sleeve; 314-a branch pipe; 315-a second showerhead; 32-a limit step; 33-a gasket; 34-a showerhead plate;

40-turbulence area; 41-spoiler; 42-turbulence pipe; 43-a resilient plate; 44-a connecting plate; 45-driving means.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 8 together, a desulfurizing tower according to the present invention will now be described. The desulfurization tower comprises a tower body 10, a slurry area 20 and a spraying area 30, wherein the bottom of the side wall of the tower body 10 is provided with an air inlet 11, and the top of the tower body 10 is provided with an air outlet 12; the slurry zone 20 is located at the bottom inside the tower 10 and below the air inlet 11; the spraying area 30 is positioned at the top in the tower body 10 and between the air inlet 11 and the air outlet 12, the spraying area 30 is communicated with the slurry area 20 through a pipeline 21, and the spraying area 30 comprises a plurality of spraying devices 31; the spraying device 31 comprises a main pipe 311, a connecting sleeve 313 and a plurality of branch pipes 314, wherein the main pipe 311 is communicated with the pipeline 21, a first spray head 312 is arranged at the free end of the main pipe 311, and a shunting opening is formed in the peripheral surface of the main pipe 311; the connecting sleeve 313 is rotatably sleeved on the periphery of the free end of the main pipe 311 and covers the shunt opening; the branch pipes 314 are uniformly distributed on the connecting sleeve 313 around the axis of the main pipe body 311, the branch pipes 314 are communicated with the diversion opening through the connecting sleeve 313, the free ends of the branch pipes 314 are provided with second spray heads 315, the spraying directions of the second spray heads 315 are downward, and the second spray heads have components parallel to the tangential direction of the connecting sleeve 313; the liquid flow paths from the second spray heads 315 in two adjacent spray devices 31 intersect with each other.

It should be noted that, in order to realize the communication between the branch pipes 314 and the main pipe body 311, the side wall of the main pipe body 311 needs to be provided with a plurality of arc-shaped grooves, the arc-shaped grooves are split openings, the branch pipes 314 are inserted into the connection sleeves 313, and the inner cavities of the pipe bodies of the branch pipes 314 are communicated with the arc-shaped grooves, so that the slurry of the main pipe body 311 can enter the branch pipes 314 through the arc-shaped grooves, and when the branch pipes 314 rotate, the slurry can be transported.

In the desulfurization tower provided by the embodiment, when in use, coal gas enters the tower body 10 from the gas inlet 11 of the tower body 10, the pipeline 21 extracts slurry in the slurry area 20 and conveys the slurry to the spraying area 30, the first spray head 312 and the second spray head 315 of the spraying area 30 simultaneously spray the slurry, and since the opening of the second nozzle 315 is inclined downward and has a component in the tangential direction of the connection sleeve 313, therefore, when the liquid flow of the second nozzle 315 is sprayed out, the connection sleeve 313 (the connection sleeve 313 drives the branch pipe 314) is driven to rotate on the main pipe 311, so as to realize the rotary spraying of the branch pipe 314, the gas entering the tower body 10 is light, so that the gas rises from the bottom of the spraying area 30, the slurry sprayed by the spraying device 31 carries out desulfurization treatment on the passing gas, the treated gas passes through the spraying area 30 and is discharged from the gas outlet 12 at the top, and the sprayed slurry falls into the slurry area 20 for next utilization.

Compared with the prior art, in the process of desulfurizing coal gas, the rotary spraying of the branch pipes 314 and the intersection of liquid flow paths between the adjacent spraying devices 31 enable the spraying area covered by each spraying device 31 to be larger, sprayed slurry to be distributed more uniformly in the tower body 10, and gaps do not exist between the adjacent spraying devices 31, so that the coal gas is prevented from escaping from the gaps of the spraying devices 31, the coal gas is ensured to be in full contact with the sprayed slurry, the desulfurization efficiency of the coal gas is improved, and the desulfurization effect of the coal gas is optimized.

In some embodiments, a specific embodiment of the duct 21 may be configured as shown in fig. 1, 5 and 7. Referring to fig. 1, 5 and 7, one end of a pipeline 21 is communicated with the slurry area 20, and the other end is branched to form a plurality of fixed pipes 22, and the fixed pipes 22 are sequentially arranged in the tower body 10 along the vertical direction; the fixed pipe 22 is provided with a plurality of spray devices 31, the main pipe body 311 of each spray device 31 is communicated with the fixed pipe 22, and the spray devices 31 on two adjacent fixed pipes 22 are distributed in a staggered mode in the axial direction of the fixed pipe 22. The spray devices 31 are divided into a plurality of layers from top to bottom (the spray devices 31 at the same height are one layer), and the spray devices 31 at the adjacent layers are distributed in a staggered manner in the axial direction of the fixed pipe 22, so that even if the treatment process of the spray device 31 at the bottommost layer to the coal gas does not achieve the expected effect, the coal gas escapes from the gap of the spray device 31, but the spray device 31 at the upper layer corresponds to the gap of the spray device 31 at the layer at the bottom, and therefore, the coal gas can be further treated, and the treatment efficiency of the coal gas is improved.

In some embodiments, a specific implementation of the installation of the connection sleeve 313 can adopt a structure as shown in fig. 3 to 4. Referring to fig. 3 to 4, the main pipe 311 is provided with two limiting steps 32 at intervals along the axis thereof, and the connection sleeve 313 is located between the two limiting steps 32; sealing gaskets 33 are respectively arranged between the two shaft ends of the connecting sleeve 313 and the limiting step 32. By arranging the limiting step 32, the installation of the connecting sleeve 313 is facilitated, and the connecting sleeve 313 can be positioned to prevent the connecting sleeve from moving along the axial direction of the main pipe body 311 during rotation; since the branch pipe 314 is communicated with the main pipe body 311, the leakage of the slurry is prevented by providing the packing 33, the hydraulic pressure in the main pipe body 311 is ensured, and the discharge rate of the slurry is ensured.

Alternatively, the connection sleeve 313 may employ a water-tight jacket.

In some embodiments, a modified implementation of main tube 311 as described above may be configured as shown in fig. 3-4. Referring to fig. 3 to 4, the free end of the main pipe 311 is clamped with a showerhead plate 34, and the showerhead plate 34 has a plurality of through holes distributed along an annular array, which form a first showerhead 312. By arranging the shower head plate 34, the shower head plate 34 can be conveniently replaced when the through hole is blocked, and compared with the replacement of the whole main pipe body 311, the shower head plate 34 is lower in cost; and specifications such as the through-hole quantity and the diameter on different shower plate 34 are different, and the accessible is changed different shower plate 34 in order to reach different shower effects, and shower plate 34's joint installation is more convenient operation moreover.

In some embodiments, a modified embodiment of the slurry zone 20 can be configured as shown in fig. 1, 5, and 7. Referring to fig. 1, 5 and 7, the slurry area 20 is provided with a blocking net 23, the blocking net 23 divides the slurry area 20 into an upper space and a lower space which are communicated, and the liquid inlet of the pipeline 21 is connected to the space below the blocking net 23. Slurry is after spraying, when carrying out the desulfurization to coal gas, still can take away the dust in the coal gas, it can form impurity to fall into slurry district 20, consequently, the slurry that sprays out falls into slurry district 20 if carried to spray set 31 by pipeline 21 again, can cause spray set 31's jam, through setting up separation net 23, can be with the upper portion of impurity separation at separation net 23, what the pipeline 21 extracted is the slurry in the separation net 23 below space, can not take out impurity to spray set 31, just prevented spray set 31's jam, extension spray set 31's life.

In some embodiments, a modified embodiment of the desulfurization tower may be configured as shown in fig. 1, 5, and 7. Referring to fig. 1, 5 and 7, a turbulent flow area 40 is further disposed below the spraying area 30, and the turbulent flow area 40 is located above the air inlet 11. When the flow rate of the coal gas is large and the flow velocity is high, the coal gas can be concentrated at the position near the air inlet 11, the coal gas is disturbed by the disturbed flow area 40, the flow velocity of the coal gas can be reduced, the coal gas can be uniformly dispersed, and the treatment efficiency of the coal gas is improved.

In some embodiments, a specific implementation of the turbulent flow region 40 may be configured as shown in fig. 1 to 2. Referring to fig. 1 to 2, the spoiler 40 includes a plurality of spoilers 41 sequentially connected along a first predetermined path, the first predetermined path is perpendicular to the up-down direction, and adjacent spoilers 41 are disposed at an included angle to form peaks and valleys alternately distributed along the first predetermined path; a plurality of turbulence pipes 42 are distributed on the spoiler 41 along a second preset path, the second preset path is perpendicular to the vertical direction and the first preset path, an air inlet of the turbulence pipe 41 is close to a valley, an air outlet of the turbulence pipe 41 is close to a peak, and the turbulence pipes 42 are communicated with spaces on the upper side and the lower side of the spoiler 41.

After the coal gas enters the interior of the tower body 10, the coal gas can enter from the air inlet of the turbulence pipe 42 because the coal gas is lighter, and the coal gas flows out from the air outlet (because the height of the air inlet is lower than that of the air outlet), the coal gas mainly enters between the turbulence area 40 and the spraying area 30 through the turbulence pipe 42, the turbulence pipe 42 becomes the only passage of the coal gas, and the plurality of turbulence pipes 42 can not only prevent the coal gas from collectively flowing out, but also play a role in shunting the coal gas; through setting up the position that the outlet of turbulent pipe 42 exports, can also adjust the exit position of coal gas, when turbulent pipe 42 export is corresponding to spray set 31 under, can guarantee that spray set 31 directly sprays the direct of coal gas, and desulfurization effect is better.

In some embodiments, one embodiment of the spoiler 41 and the spoiler 42 may be configured as shown in fig. 1 to 2. Referring to fig. 1 to 2, the plurality of spraying devices 31 are distributed in a row-column shape, wherein the plurality of spraying devices 31 are distributed along a first preset path to form a spraying row, and the plurality of spraying devices 31 are distributed along a second preset path to form a spraying column; the plate peaks are positioned right below the spraying columns or the spraying rows and are arranged in one-to-one correspondence with the spraying columns or the spraying rows. When the plate peaks are positioned right below the spraying rows, the plate peaks correspond to the spraying rows one to one; when the plate peaks are positioned right below the spraying rows, the plate peaks correspond to the spraying rows one to one.

The butt joint between the two spoilers 41 forms a plate peak or a plate valley, one plate peak corresponds to all the spoilers 42 on the two spoilers 41, and because the outlets of the spoilers 42 are close to the plate peak, after the coal gas enters the tower body 10, the coal gas is dispersed upwards through the spoilers 42 and just flows out from the right lower part of the spraying row or the spraying line, so that the spraying device 31 can be ensured to directly spray the coal gas, and the desulfurization effect is better.

It should be noted that, when only one layer of spraying devices 31 is provided, the plate peak corresponds to the spraying columns or spraying rows in the multiple spraying devices 31 of the layer; when the spray devices 31 are provided with multiple layers, the plate peak corresponds to the spray columns or spray rows in the plurality of spray devices 31 at the bottom layer (i.e., the spray columns or spray rows in the layer closest to the plate peak).

In some embodiments, an alternative implementation of the spoiler 40 may employ a structure as shown in fig. 5 to 8. Referring to fig. 5 to 8, the turbulent flow region 40 includes a plurality of elastic plates 43 sequentially distributed along a third predetermined path, a gap exists between adjacent elastic plates 43, and the third predetermined path is perpendicular to the up-down direction; the first side of elastic plate 43 and tower body 10 rigid coupling, the second side of elastic plate 43 is connected with tower body 10 is rotated, the rotation axis of second side perpendicular to third predetermine the route and upper and lower direction, first side and second side set up relatively, be equipped with outside the tower body 10 and be used for driving second side pivoted drive arrangement 45, drive arrangement 45 enables elastic plate 43 and twists reverse and be the heliciform. When the flow of the coal gas is small, the driving device 45 is not opened, the plate surface of the elastic plate 43 is parallel to the third preset path, the gap between the adjacent elastic plates 43 is small, the coal gas can flow through the gap (the coal gas can only pass through the gap between the adjacent elastic plates 3 and the gap between the elastic plate 43 and the inner wall of the tower body 10), and the sprayed slurry falls on the elastic plate 43; when the gas flow is large, the driving device 45 is turned on, the driving device 45 drives one end of the elastic plate 43 to rotate (can rotate for two circles), at the moment, the elastic plate 43 forms a spiral plate shape, the gap between the adjacent elastic plates 43 is increased, the twisted shape of the elastic plate 43 can also disturb and guide the gas, and slurry remained on the elastic plate 43 can flow down along the twisted surface of the elastic plate 43.

Through the control to the elastic plate 43 state to be applicable to the coal gas treatment of different flow, optimize the treatment effect, improve the treatment effeciency.

In some embodiments, a modified embodiment of the elastic plate 43 may be configured as shown in fig. 5 to 8. Referring to fig. 5 to 8, the first side and the tower body 10, and the second side and the driving device 45 are respectively connected by a connecting plate 44, and the width of the connecting plate 44 is gradually reduced along a direction away from the elastic plate 43. The connecting plate 44 is made of rigid material, so that only the elastic plate 43 is twisted and deformed when the driving device 45 drives the connecting plate 44 to rotate. Through setting up connecting plate 44, conveniently drive the distortion of elastic plate 43 for turn round the curve strip more in the same direction as smooth and even on the elastic plate 43, and then optimize vortex and reposition of redundant personnel effect.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.