Slurry backflow prevention drainage device for absorption tower inlet flue

Abstract

The invention discloses a slurry backflow prevention drainage device for an absorption tower inlet flue, and relates to the field of slurry backflow prevention of absorption towers, the slurry backflow prevention drainage device comprises an absorption tower main body, one side of the absorption tower main body is fixedly connected with an inlet flue pipe, the absorption tower main body is rotatably connected with a mounting pipe, and the top end of the mounting pipe is fixedly connected with a transmission pipe; according to the slurry backflow prevention drainage device for the absorption tower inlet flue, the cleaning mechanism is driven by the driving mechanism to automatically operate, and slurry at a smoke inlet of the inlet flue pipe can be timely scraped and cleaned by the cleaning plate. In the cleaning process, the transmission column drives the cleaning plate to move in a reciprocating mode under the action of the arc-shaped transmission block and the spring, stretching cleaning is conducted during entering, secondary cleaning is conducted during moving out, and the situation that slurry is accumulated to block the pipeline is avoided. And meanwhile, the cleaning plate can prevent slurry falling from the absorption tower from entering the inlet flue pipe, so that pipeline internal corrosion caused by backward flowing of the slurry is prevented, and the pipeline damage risk is remarkably reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of absorption tower anti-slurry backflow, in particular to a device for preventing slurry backflow of an inlet flue of an absorption tower. BACKGROUND

[0002] During the operation of the absorption tower, the inlet flue pipe often faces the problem of slurry backflow, which not only causes serious damage to the pipe, but also affects the stable operation of the entire absorption tower system and the desulfurization effect.

[0003] At present, the existing absorption tower inlet flue pipe anti-slurry backflow technology has many deficiencies. On the one hand, there is a lack of effective automatic cleaning mechanism for the slurry cleaning at the inlet flue pipe smoke inlet. In actual operation, the slurry is easy to accumulate at the smoke inlet, and if it cannot be cleaned in time, not only will it block the pipe and affect the normal entry of flue gas, but also the accumulated slurry will accelerate the corrosion process of the pipe. At the same time, the slurry falling in the main body of the absorption tower is also easy to accumulate at the inlet, and if it cannot be discharged in time, it is easy to cause slurry backflow, further aggravate the corrosion inside the inlet flue pipe, greatly reduce the service life of the inlet flue pipe, and increase the maintenance and replacement cost of the equipment.

[0004] In summary, the existing absorption tower inlet flue anti-slurry backflow technology has problems such as untimely slurry cleaning, poor drainage effect, and easy damage to equipment, and cannot meet the needs of stable operation and efficient desulfurization of the absorption tower system, therefore, it is of great practical significance to develop a device for preventing slurry backflow of the inlet flue of the absorption tower. SUMMARY

[0005] The purpose of the present application is to provide a device for preventing slurry backflow of the inlet flue of the absorption tower to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme: a device for preventing slurry backflow of the inlet flue of the absorption tower, comprising:

[0007] An absorption tower main body, one side of the absorption tower main body is fixedly connected with an inlet flue pipe, a mounting pipe is rotatably connected to the absorption tower main body, a top end of the mounting pipe is fixedly connected with a transmission pipe, a cleaning mechanism is arranged on the transmission pipe, and the cleaning mechanism is used for cleaning the smoke inlet of the inlet flue pipe;

[0008] A drainage mechanism connected with the absorption tower main body is drivingly connected to the transmission pipe, the drainage mechanism is used for draining the absorption tower main body, and a driving mechanism connected with the absorption tower main body is drivingly connected to the outer surface of the mounting pipe, and the driving mechanism is used for driving the mounting pipe to rotate.

[0009] Further, the cleaning mechanism comprises a transmission column in sliding connection with the transmission pipe, an outer surface of the transmission column is fixedly sleeved with a spring connected with the transmission pipe, one end of the transmission column is fixedly connected with a cleaning plate, an inner surface of the absorption tower body is fixedly connected with an arc-shaped transmission block, the other end of the transmission column is fixedly connected with a transmission wheel in sliding connection with the arc-shaped transmission block.

[0010] Further, the hydrophobic mechanism comprises a sliding column fixedly connected with the transmission pipe, the sliding column is slidably connected with a transmission plate, a bottom of the transmission plate is fixedly connected with a floating ball, a top of the transmission plate is fixedly connected with a top block, an outer surface of the mounting pipe is fixedly connected with a delay switch through a connecting block, the outer surface of the mounting pipe is fixedly connected with a water absorption mechanism connected with the absorption tower body, the water absorption mechanism is used for water absorption in the absorption tower body, and the water absorption mechanism is electrically connected with the delay switch.

[0011] Further, the water absorption mechanism comprises a water absorption pipe fixedly connected with the mounting pipe, a bottom end of the mounting pipe is rotatably connected with a connecting pipe connected with the absorption tower body, the bottom end of the connecting pipe is fixedly connected with a water pump fixedly connected with the absorption tower body through a pipeline, and the water pump is electrically connected with the delay switch.

[0012] Further, a bottom of the water absorption pipe is fixedly connected with a filter screen plate, and the absorption tower body is fixedly connected with a first cleaning brush connected with the filter screen plate.

[0013] Further, an outer surface of the mounting pipe is fixedly connected with a plurality of stirring columns.

[0014] Further, an outer surface of the mounting pipe is fixedly connected with a connecting plate, one side of the connecting plate is fixedly connected with a second cleaning brush.

[0015] Further, the driving mechanism comprises a driving motor fixedly connected with the absorption tower body, an output end of the driving motor is fixedly connected with a driving shaft through a shaft coupling, an outer surface of the driving shaft is fixedly sleeved with a first driving gear, and an outer surface of the first driving gear is meshedly connected with a second driving gear fixedly sleeved with the mounting pipe.

[0016] Compared with the prior art, the hydrophobic device for preventing slurry backflow of the absorption tower inlet flue has the following beneficial effects:

[0017] (1) Through the driving mechanism to drive the cleaning mechanism to operate automatically, the cleaning plate can scrape the slurry at the entrance of the flue pipe in time. During the cleaning process, the transmission column drives the cleaning plate to move back and forth under the action of the arc-shaped transmission block and the spring, which can clean the slurry when it enters and when it moves out, avoiding the accumulation of slurry to block the pipeline. At the same time, the cleaning plate can prevent the slurry falling from the absorption tower from entering the entrance flue pipe, prevent the internal corrosion of the pipeline caused by the backflow of the slurry, significantly reduce the risk of pipeline damage, prolong the service life of the entrance flue pipe, and reduce the equipment maintenance and replacement cost.

[0018] (2) The drainage mechanism can trigger the delay switch to start the water pump when the liquid level is too high through the floating ball, which can automatically suck out the excess slurry to avoid the backflow caused by too much slurry. When the water suction pipe rotates, the filter screen plate is attached to the first cleaning brush for cleaning to prevent blockage and ensure stable drainage. In addition, the installation pipe drives the stirring column to stir the slurry, which enhances the absorption efficiency of sulfides in flue gas; the second cleaning brush cleans the filter screen of the slurry absorption pipe to ensure smooth circulation. The overall realizes the cooperative operation of drainage, cleaning and stirring, and improves the operation stability and desulfurization effect of the absorption tower system. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0020] Figure 1 It is the first perspective view of the external structure of the present application.

[0021] Figure 2 It is the partial perspective view of the internal structure of the present application.

[0022] Figure 3 It is the front view of the internal structure of the present application.

[0023] Figure 4 It is the top view of the internal structure of the present application.

[0024] Figure 5 It is the enlarged view of A in the present application. Figure 1

[0025] Figure 6 It is the enlarged view of B in the present application. Figure 3

[0026] Explanation of reference signs:

[0027] ​​1, absorption tower main body; 2, inlet flue pipe; 3, mounting pipe; 4, transmission pipe; 5, stirring column; 11, transmission column; 12, spring; 13, cleaning plate; 14, arc transmission block; 15, transmission wheel; 21, sliding column; 22, transmission plate; 23, floating ball; 24, top block; 25, delay switch; 31, water suction pipe; 32, connecting pipe; 33, water pump; 34, filter screen; 35, first cleaning brush; 41, connecting plate; 42, second cleaning brush; 51, drive motor; 52, drive shaft; 53, first drive gear; 54, second drive gear. DETAILED DESCRIPTION

[0028] In order to make the technical personnel in the art better understand the technical solutions of the present application, the present application will be further described in detail below with reference to the drawings.

[0029] Example one

[0030] Please refer to Figures 1 to 6 As shown in the drawings, the device for preventing slurry backflow and draining water for the inlet flue of the absorption tower comprises an absorption tower main body 1, one side of the absorption tower main body 1 is fixedly connected with an inlet flue pipe 2, a mounting pipe 3 is rotatably connected to the absorption tower main body 1, the top end of the mounting pipe 3 is fixedly connected with a transmission pipe 4, a cleaning mechanism is arranged on the transmission pipe 4, and the cleaning mechanism is used for cleaning the smoke inlet of the inlet flue pipe 2.

[0031] A water draining mechanism connected with the absorption tower main body 1 is transmissionally connected to the transmission pipe 4, the water draining mechanism is used for draining water in the absorption tower main body 1, a drive mechanism connected with the absorption tower main body 1 is transmissionally connected to the outer surface of the mounting pipe 3, the drive mechanism is used for driving the mounting pipe 3 to rotate, the drive mechanism comprises a drive motor 51 fixedly connected with the absorption tower main body 1, the drive motor 51 is controlled by a PLC programming program, the drive motor 51 can be controlled to rotate forward and backward and the rotation angle, a drive shaft 52 is fixedly connected to the output end of the drive motor 51 through a shaft coupling, a first drive gear 53 is fixedly sleeved to the outer surface of the drive shaft 52, a second drive gear 54 fixedly sleeved with the mounting pipe 3 is meshingly connected to the outer surface of the first drive gear 53, the drive shaft 52 is driven to rotate by the drive motor 51, and the mounting pipe 3 is driven to rotate by the first drive gear 53 and the second drive gear 54.

[0032] The cleaning mechanism comprises a transmission column 11 slidably connected with the transmission pipe 4, a spring 12 connected with the transmission pipe 4 is fixedly sleeved to the outer surface of the transmission column 11, a cleaning plate 13 is fixedly connected to one end of the transmission column 11, an arc transmission block 14 is fixedly connected to the inner surface of the absorption tower main body 1, and a transmission wheel 15 slidably connected with the arc transmission block 14 is fixedly connected to the other end of the transmission column 11.

[0033] The installation pipe 3 is driven to rotate by the driving mechanism, the installation pipe 3 drives the transmission pipe 4 to rotate, the transmission pipe 4 drives the transmission column 11 to rotate, the transmission column 11 drives the cleaning plate 13 to enter the inlet flue pipe 2, then the other end of the transmission column 11 drives the transmission wheel 15 to enter the arc-shaped transmission block 14, slides on the arc-shaped transmission block 14, and simultaneously drives the transmission wheel 15 and the transmission column 11 to move through the arc-shaped transmission block 14, the transmission column 11 drives the cleaning plate 13 to move, and the spring 12 is stretched, at this time, the cleaning plate 13 extends into the inlet flue pipe 2 to scrape and clean the slurry at the entrance of the inlet flue pipe 2, then the transmission wheel 15 passes the arc-shaped transmission block 14, at this time, the transmission column 11 drives the transmission column 11 to move under the action of the spring 12, so that the transmission column 11 drives the cleaning plate 13 to slowly move out of the inlet flue pipe 2, and the slurry at the entrance of the inlet flue pipe 2 is cleaned during the moving-out process, then the cleaning plate 13 is driven to rotate out, and the process is repeated in sequence, so that the slurry at the entrance of the inlet flue pipe 2 is automatically cleaned in time, the slurry at the entrance of the inlet flue pipe 2 is prevented from accumulating to cause corrosion of the pipe, and the slurry falling downward from the absorption tower body 1 is also prevented from entering the inlet flue pipe 2 and being blocked by the slurry at the entrance, so that the slurry cannot be discharged in time, the slurry is caused to backflow, the inside of the inlet flue pipe 2 is corroded, and the service life of the inlet flue pipe 2 is reduced.

[0034] Embodiment two

[0035] On the basis of embodiment one, please refer to Figure 2 , Figure 3 and Figure 6 , the hydrophobic mechanism includes a sliding column 21 fixedly connected with the transmission pipe 4, a transmission plate 22 slidably connected with the sliding column 21, a floating ball 23 fixedly connected with the bottom of the transmission plate 22, a top block 24 fixedly connected with the top of the transmission plate 22, a delay switch 25 fixedly connected with the outer surface of the installation pipe 3 through a connecting block, the delay switch 25 is a prior art, which controls the power-on time of the circuit after being triggered, and the power-on time is set by the user, and the outer surface of the installation pipe 3 is fixedly connected with a water suction mechanism connected with the absorption tower body 1, the water suction mechanism is used for water suction in the absorption tower body 1, and the water suction mechanism is electrically connected with the delay switch 25.

[0036] The water suction mechanism includes a water suction pipe 31 fixedly connected with the installation pipe 3, a connecting pipe 32 rotatably connected with the bottom end of the installation pipe 3 and connected with the absorption tower body 1, and a water pump 33 fixedly connected with the absorption tower body 1 through a pipeline at the bottom end of the connecting pipe 32, the water pump 33 is electrically connected with the delay switch 25.

[0037] The bottom of the water suction pipe 31 is fixedly connected with a filter screen plate 34, and the absorption tower body 1 is fixedly connected with a first cleaning brush 35 connected with the filter screen plate 34.

[0038] When the pulp in the absorption tower body 1 is too much, the float ball 23 at the bottom of the transmission plate 22 is floated up at this time, the float ball 23 drives the transmission plate 22 to move up, the transmission plate 22 moves up along the sliding column 21, the transmission plate 22 drives the top block 24 to move up, the top block 24 starts to trigger the delay switch 25, the delay switch 25 starts to start the water pump 33, the water pump 33 is started, the water pump 33 absorbs the connecting pipe 32 and the installation pipe 3 through the pipeline, at the same time, the installation pipe 3 is absorbed through the water suction pipe 31 The pulp in the absorption tower body 1 is discharged, realizing automatic drainage of the pulp in the absorption tower body 1, effectively preventing the pulp in the absorption tower body 1 from being too much, causing the pulp to flow back to the inlet flue pipe 2, causing corrosion inside the inlet flue pipe 2. At the same time, the installation pipe 3 drives the water suction pipe 31 to rotate, the water suction pipe 31 drives the filter screen plate 34 to be attached to the first cleaning brush 35, so that the bottom of the filter screen plate 34 is cleaned, effectively preventing the filter screen plate 34 from being blocked, further improving the stability of the drainage.

[0039] The outer surface of the installation pipe 3 is fixedly connected with a plurality of stirring columns 5.

[0040] The outer surface of the installation pipe 3 is fixedly connected with a connecting plate 41, one side of the connecting plate 41 is fixedly connected with a second cleaning brush 42, the stirring column 5 is driven to rotate by the installation pipe 3, the stirring column 5 drives the pulp at the bottom of the absorption tower body 1 to be stirred, so that the pulp fully absorbs the sulfide in the flue gas, at the same time, the connecting plate 41 is driven to rotate by the installation pipe 3, the second cleaning brush 42 is driven to clean the filter screen on the pulp absorption pipe by the connecting plate 41, preventing the filter screen on the pulp absorption pipe from being blocked, further improving the stability of the pulp circulation.

[0041] Working principle: in use, the driving mechanism drives the installation pipe 3 to rotate, the installation pipe 3 drives the transmission pipe 4 to rotate, the transmission pipe 4 drives the transmission column 11 to rotate, the transmission column 11 drives the cleaning plate 13 to enter the inlet flue pipe 2, then the other end of the transmission column 11 transmission wheel 15 enters the arc-shaped transmission block 14, slides on the arc-shaped transmission block 14, and simultaneously drives the transmission wheel 15 and the transmission column 11 to move through the arc-shaped transmission block 14, the transmission column 11 drives the cleaning plate 13 to move, and the spring 12 is stretched, at this time the cleaning plate 13 extends into the inlet flue pipe 2 to scrape and clean the slurry at the entrance of the inlet flue pipe 2, then the transmission wheel 15 passes the arc-shaped transmission block 14, at this time the transmission column 11 drives the transmission column 11 to move under the action of the spring 12, so that the transmission column 11 drives the cleaning plate 13 to slowly move out of the inlet flue pipe 2, and the slurry at the entrance of the inlet flue pipe 2 is cleaned during the moving out process, then the cleaning plate 13 is driven to rotate out, and the process is repeated in turn, so that the slurry at the entrance of the inlet flue pipe 2 is automatically cleaned in time, the slurry at the entrance of the inlet flue pipe 2 is prevented from accumulating to cause corrosion of the pipe, and the slurry in the absorption tower body 1 is prevented from falling downward into the inlet flue pipe 2 and being blocked by the slurry at the entrance, so that the slurry cannot be discharged in time, the slurry is caused to backflow, the inside of the inlet flue pipe 2 is corroded, and the service life of the inlet flue pipe 2 is reduced.

[0042] When the slurry in the absorption tower body 1 is too much, at this time the slurry drives the floating ball 23 at the bottom of the transmission plate 22 to float upward, the floating ball 23 drives the transmission plate 22 to move upward, the transmission plate 22 moves upward along the sliding column 21, the transmission plate 22 drives the top block 24 to move upward, the top block 24 triggers the delay switch 25, the delay switch 25 starts the water pump 33, the water pump 33 is started, the water pump 33 absorbs the connecting pipe 32 and the installation pipe 3 through the pipeline, and the installation pipe 3 sucks out the slurry in the absorption tower body 1 through the water suction pipe 31, so that the slurry in the absorption tower body 1 is automatically drained, the slurry in the absorption tower body 1 is effectively prevented from being too much to cause the slurry to backflow into the inlet flue pipe 2 and cause corrosion of the inside of the inlet flue pipe 2. At the same time, the installation pipe 3 drives the water suction pipe 31 to rotate, the water suction pipe 31 drives the filter screen plate 34 to be attached to the first cleaning brush 35, so that the bottom of the filter screen plate 34 is cleaned, the filter screen plate 34 is effectively prevented from being blocked, and the stability of the drainage is further improved.

[0043] The above only describes some exemplary embodiments of the present application in a descriptive manner, without doubt, those skilled in the art can modify the described embodiments in various different ways without departing from the spirit and scope of the present application. Therefore, the above drawings and descriptions are illustrative in nature and should not be understood as limiting the scope of protection of the claims of the present application.

Claims

1. A slurry backflow prevention and drainage device for the inlet flue of an absorption tower, characterized in that, include: The absorption tower body (1) has an inlet flue pipe (2) fixedly connected to one side of the absorption tower body (1), and an installation pipe (3) rotatably connected to the absorption tower body (1). A transmission pipe (4) is fixedly connected to the top end of the installation pipe (3). A cleaning mechanism is provided on the transmission pipe (4). The cleaning mechanism is used to clean the inlet of the inlet flue pipe (2). The transmission pipe (4) is connected to a hydrophobic mechanism that is connected to the absorption tower body (1). The hydrophobic mechanism is used to drain water from the absorption tower body (1). The outer surface of the mounting pipe (3) is connected to a drive mechanism that is connected to the absorption tower body (1). The drive mechanism is used to drive the mounting pipe (3) to rotate.

2. The anti-slurry backflow drainage device for the inlet flue of an absorption tower according to claim 1, characterized in that, The cleaning mechanism includes a transmission column (11) that is slidably connected to the transmission tube (4). A spring (12) that is connected to the transmission tube (4) is fixedly sleeved on the outer surface of the transmission column (11). A cleaning plate (13) is fixedly connected to one end of the transmission column (11). An arc-shaped transmission block (14) is fixedly connected to the inner surface of the absorption tower body (1). A transmission wheel (15) that is slidably connected to the arc-shaped transmission block (14) is fixedly connected to the other end of the transmission column (11).

3. The anti-slurry backflow drainage device for the inlet flue of an absorption tower according to claim 1, characterized in that, The hydrophobic mechanism includes a sliding column (21) fixedly connected to the transmission pipe (4), a transmission plate (22) slidably connected to the sliding column (21), a float (23) fixedly connected to the bottom of the transmission plate (22), a top block (24) fixedly connected to the top of the transmission plate (22), a time delay switch (25) fixedly connected to the outer surface of the mounting pipe (3) through a connecting block, and a water absorption mechanism connected to the absorption tower body (1) fixedly connected to the outer surface of the mounting pipe (3). The water absorption mechanism is used to absorb water from the absorption tower body (1), and the water absorption mechanism is electrically connected to the time delay switch (25).

4. The anti-slurry backflow drainage device for the inlet flue of an absorption tower according to claim 3, characterized in that, The water suction mechanism includes a water suction pipe (31) fixedly connected to the installation pipe (3), and a connecting pipe (32) rotatably connected to the bottom end of the installation pipe (3) and connected to the absorption tower body (1). The bottom end of the connecting pipe (32) is fixedly connected to a water pump (33) fixedly connected to the absorption tower body (1) through a pipe. The water pump (33) is electrically connected to a time delay switch (25).

5. The anti-slurry backflow drainage device for the inlet flue of an absorption tower according to claim 4, characterized in that, A filter screen plate (34) is fixedly connected to the bottom of the water suction pipe (31), and a first cleaning brush (35) connected to the filter screen plate (34) is fixedly connected inside the absorption tower body (1).

6. The anti-slurry backflow drainage device for the inlet flue of an absorption tower according to claim 1, characterized in that, Multiple stirring columns (5) are fixedly connected to the outer surface of the mounting tube (3).

7. The anti-slurry backflow drainage device for the inlet flue of an absorption tower according to claim 1, characterized in that, A connecting plate (41) is fixedly connected to the outer surface of the mounting tube (3), and a second cleaning brush (42) is fixedly connected to one side of the connecting plate (41).

8. The anti-slurry backflow drainage device for the inlet flue of an absorption tower according to claim 1, characterized in that, The driving mechanism includes a drive motor (51) fixedly connected to the absorption tower body (1). The output end of the drive motor (51) is fixedly connected to a drive shaft (52) via a coupling. A first drive gear (53) is fixedly sleeved on the outer surface of the drive shaft (52). A second drive gear (54) is meshed with the outer surface of the first drive gear (53) and fixedly sleeved on the mounting tube (3).

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