Rotary packed tower for waste gas treatment

Abstract

The utility model provides a rotary packed tower for waste gas treatment, which relates to the field of waste gas treatment and comprises a waste gas packed tower, a first packing layer and a second packing layer, the first packing layer and the second packing layer are supported on the inner side of the waste gas packed tower through packing support plates, and a motor is mounted on the upper tower surface of the waste gas packed tower through a protective cover. The lower end of the motor is in shaft connection with a rotating top rod, the lower end of the rotating top rod is in threaded connection with a center rod through a connecting plate, the lower end of the center rod is connected with a rotating bottom rod through a connecting plate, and spiral blades are welded to the surfaces of the rotating top rod, the center rod and the rotating bottom rod; and the center rod and the rotating bottom rod are respectively connected with the filler supporting plate in a penetrating manner through the connecting cylinder. The utility model solves the problem that the mass transfer efficiency of the waste gas packed tower is reduced due to the fact that the waste gas circulation speed is reduced to a certain extent while the waste gas flow path is prolonged by the inclined baffle plate in the prior art.

Description

TECHNICAL FIELD

[0001] The utility model relates to waste gas treatment technical field, concretely relates to a waste gas treatment is with rotary type filler tower. BACKGROUND

[0002] In waste gas treatment, the filler tower plays a vital role, its main functions include increasing gas-liquid contact area, promoting mass transfer and reaction, improving treatment efficiency and purification effect, through the retrieval, the prior art (announcement number: CN202320811341.1) a kind of waste gas absorption filler tower, the waste gas is filtered by external filter box, the larger particles impurities in waste gas are filtered by particle filter screen, the dust in waste gas is adsorbed by second activated carbon plate, avoid impurities into filler tower after, adsorbed on the inner side of filler layer hole, make that filler layer hole inner side easy to scale, reduce the problem that the waste gas treatment efficiency of filler tower occurs, waste gas passes through multiple serpentine obliquely placed baffle and screen, extend the contact time of waste gas and solvent, increase contact area, improve the adsorption effect of waste gas, but the obliquely placed baffle in prior art extends waste gas flow path while reducing waste gas flow speed to a certain extent, which leads to the problem of mass transfer efficiency decline of waste gas filler tower. SUMMARY

[0003] To overcome the defects existing in the prior art, a rotary filler tower for waste gas treatment is provided to solve the problem of mass transfer efficiency decline of waste gas filler tower caused by the obliquely placed baffle extending the waste gas flow path while reducing the waste gas flow speed to a certain extent in the prior art.

[0004] To achieve the above-mentioned purpose, a rotary filler tower for waste gas treatment is provided, which comprises: a waste gas filler tower, a first filler layer and a second filler layer, the first filler layer and the second filler layer are supported by a filler support plate inside the waste gas filler tower,

[0005] A motor is installed on the upper tower surface of the waste gas filler tower through a protective cover, a rotating top rod is connected to the lower end of the motor, a central rod is screwed to the lower end of the rotating top rod through a connecting plate, a rotating bottom rod is connected to the lower end of the central rod through a connecting plate, helical blades are welded on the surfaces of the rotating top rod, the central rod and the rotating bottom rod, and the central rod and the rotating bottom rod are connected through a connecting cylinder.

[0006] Further, a waste liquid tank is arranged at the bottom inside the waste gas filler tower, a liquid level meter is installed at the tank wall of the waste liquid tank, and a liquid discharge pipe is connected to the lower end of the waste liquid tank.

[0007] Further, an air inlet is formed at the left end of the waste gas filler tower, and two groups of air outlet pipes are arranged on the upper tower surface of the waste gas filler tower; the air outlet pipes are symmetrically distributed on the left and right sides of the motor.

[0008] Furthermore, a liquid distributor is installed on the inner wall of the waste gas filling tower; and a rotating top rod passes through the middle of the liquid distributor, and the right end of the liquid distributor is connected to a first liquid delivery pipe.

[0009] Furthermore, a drainage hole is provided on the lower surface of the liquid distributor, a first packing layer is distributed on the lower end of the liquid distributor, and a second packing layer is laid on the lower end of the first packing layer.

[0010] Furthermore, a spray ring plate is fixed on the inner wall of the waste gas packing tower; and the spray ring plate and the center rod are located at the distance between the first packing layer and the second packing layer, and the right end of the spray ring plate is connected to the second liquid delivery pipe.

[0011] Furthermore, a connecting column is welded on the upper surface of the filler support plate, and the lower end of the rotating bottom rod is movably connected to a fixed horizontal plate through a limit block; and the front and rear ends of the fixed horizontal plate are welded to the inner wall of the exhaust gas filler tower.

[0012] The beneficial effect of the present invention is that the rotary packing tower for waste gas treatment of the present invention utilizes a rotating top rod, a center rod, a rotating bottom rod and spiral blades to form a spiral rotating mechanism, and the rotating top rod is driven to rotate as a whole by a tower top motor, thereby driving the gas in the area where the rotating top rod, the center rod and the rotating bottom rod are located in the waste gas packing tower to spirally rotate and rise, effectively extending the path of the waste gas through the packing tower and facilitating the regulation of the waste gas flow rate in the tower, making it convenient for the waste gas to more fully contact and react with the reaction liquid and the packing, thereby enhancing the purification treatment effect of the waste gas and improving the mass transfer efficiency of the rotary waste gas packing tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic front view cross-sectional structure diagram of a rotary packed tower for waste gas treatment according to an embodiment of the present utility model.

[0014] Figure 2 This is a schematic front cross-sectional structural diagram of a filler support plate according to an embodiment of the present utility model.

[0015] Figure 3 This is a schematic diagram of the partial connection structure of the rotating bottom rod in front of an embodiment of the present utility model.

[0016] Figure 4 This is a schematic diagram of the lower end surface structure of the liquid distributor according to an embodiment of the present utility model.

[0017] In the figure: 1, waste gas packing tower; 11, gas inlet; 12, gas outlet; 13, liquid level meter; 14, waste liquid tank; 15, liquid discharge pipe; 16, fixed cross plate; 17, limiting block; 2, first packing layer; 21, second packing layer; 3, packing support plate; 31, connecting cylinder; 4, rotating top rod; 41, motor; 42, protective cover; 43, helical blade; 44, central rod; 45, rotating bottom rod; 46, connecting plate; 5, liquid distributor; 51, first liquid conveying pipe; 52, second liquid conveying pipe; 53, spraying ring plate; 54, liquid discharge hole. DETAILED DESCRIPTION

[0018] Referring to Figures 1 to 4 The utility model provides a rotating packing tower for waste gas treatment, including: waste gas packing tower 1, first packing layer 2 and second packing layer 21, the inside of waste gas packing tower 1 is supported with first packing layer 2 and second packing layer 21 through packing support plate 3,

[0019] The motor 41 is installed on the tower surface of waste gas packing tower 1 through the protective cover 42, the rotating top rod 4 is connected to the lower end of the motor 41, the central rod 44 is screwed to the lower end of the rotating top rod 4 through the connecting plate 46, the rotating bottom rod 45 is connected to the lower end of the central rod 44 through the connecting plate 46, the helical blade 43 is welded on the surface of the rotating top rod 4, the central rod 44 and the rotating bottom rod 45, and the central rod 44 and the rotating bottom rod 45 are connected with the packing support plate 3 through the connecting cylinder 31.

[0020] First, the waste gas is introduced into the waste gas packing tower 1 through the gas inlet 11, at this time, the liquid distributor 5 and the spraying ring plate 53 spray the reaction liquid, the motor 41 drives the rotating top rod 4, the central rod 44 and the rotating bottom rod 45 to rotate, so that the helical blade 43 on the surface of the rod body rotates spirally, and the entering waste gas is spirally rotated and rises through the first packing layer 2, the second packing layer 21 and the spraying area, and finally the treated gas is discharged from the gas outlet 12 at the top of the waste gas packing tower 1.

[0021] In this embodiment, the waste liquid tank 14 is arranged at the bottom of the inside of the waste gas packing tower 1, the liquid level meter 13 is installed at the tank wall of the waste liquid tank 14, and the liquid discharge pipe 15 is connected to the lower end of the waste liquid tank 14. The gas inlet 11 is arranged at the left side end of the waste gas packing tower 1, and the two groups of gas outlets 12 are arranged on the tower surface of the waste gas packing tower 1, and the gas outlets 12 are symmetrically arranged on the left and right sides of the motor 41.

[0022] As a preferred embodiment, the waste liquid tank 14 is used for storing the flowing reaction waste liquid, when the liquid level in the waste liquid tank 14 reaches the liquid level meter 13, the liquid discharge pipe 15 is opened to discharge the liquid. The gas outlet 12 discharges the gas after being absorbed and reacted.

[0023] In the embodiment, the liquid distributor 5 is mounted on the inner wall of the waste gas packed tower 1; the rotating top rod 4 penetrates the middle part of the liquid distributor 5; and the first liquid conveying pipe 51 is connected to the right end of the liquid distributor 5. The liquid distributor 5 is provided with a liquid discharging hole 54 on the lower surface; the first packing layer 2 is distributed on the lower end of the liquid distributor 5; and the second packing layer 21 is laid on the lower end of the first packing layer 2. The spray ring plate 53 is fixed on the inner wall of the waste gas packed tower 1; the spray ring plate 53 and the central rod 44 are located at the interval between the first packing layer 2 and the second packing layer 21; and the second liquid conveying pipe 52 is connected to the right side end of the spray ring plate 53.

[0024] As a preferred embodiment, the liquid distributor 5 and the spray ring plate 53 are distributed above the spray ring plate 53 to spray the reaction liquid, so that the reaction liquid is reacted and absorbed by the waste gas entering the tower. When the waste gas flows upward along the tower body, the spiral blades 43 on the surfaces of the rotating top rod 4, the central rod 44 and the rotating bottom rod 45 make the waste gas rise spirally, which effectively prolongs the path of the waste gas through the packed tower, regulates the flow speed of the waste gas in the tower, enhances the purification effect of the waste gas and improves the mass transfer efficiency of the rotating waste gas packed tower.

[0025] In the embodiment, the adapter cylinder 31 is welded on the upper plate surface of the packing support plate 3; the rotating bottom rod 45 is movably connected to the fixed horizontal plate 16 through the limiting block 17 at the lower end; and the front end and the rear end of the fixed horizontal plate 16 are welded to the inner wall of the waste gas packed tower 1.

[0026] As a preferred embodiment, the adapter cylinder 31 facilitates the penetration connection of the central rod 44 and the rotating bottom rod 45, so that the rotating top rod 4 drives the central rod 44 and the rotating bottom rod 45 to rotate synchronously. The fixed horizontal plate 16 facilitates the support of the rotating bottom rod 45 and strengthens the stability of the rotating bottom rod 45.

[0027] The rotating packed tower for waste gas treatment can effectively solve the problem that the mass transfer efficiency of the waste gas packed tower is reduced due to the fact that the inclined baffle prolongs the flow path of the waste gas and reduces the flow speed of the waste gas to a certain extent, effectively prolongs the path of the waste gas through the packed tower, facilitates the regulation of the flow speed of the waste gas in the tower, facilitates the more sufficient contact reaction of the waste gas with the reaction liquid and the packing, enhances the purification effect of the waste gas, improves the mass transfer efficiency of the rotating waste gas packed tower and is suitable for the rotating packed tower for waste gas treatment.

Claims

1. A rotary packed tower for waste gas treatment, comprising: An exhaust gas packing tower (1), a first packing layer (2) and a second packing layer (21), wherein the first packing layer (2) and the second packing layer (21) are supported on the inner side of the exhaust gas packing tower (1) by a packing support plate (3), and characterized in that: The upper tower surface of the waste gas packing tower (1) is equipped with a motor (41) through a protective cover (42); the lower end of the motor (41) is axially connected to a rotating top rod (4); the lower end of the rotating top rod (4) is screwed to a center rod (44) through a connecting plate (46); the lower end of the center rod (44) is connected to a rotating bottom rod (45) through a connecting plate (46); spiral blades (43) are welded to the surfaces of the rotating top rod (4), the center rod (44) and the rotating bottom rod (45); the center rod (44) and the rotating bottom rod (45) are respectively connected to the packing support plate (3) through a connecting column (31).

2. The rotary packed tower for waste gas treatment according to claim 1, characterized in that: A waste liquid tank (14) is provided at the bottom of the inner side of the waste gas packing tower (1), a liquid level meter (13) is installed on the tank wall of the waste liquid tank (14), and a drain pipe (15) is connected to the lower end of the waste liquid tank (14).

3. The rotary packed tower for waste gas treatment according to claim 1, characterized in that: An air inlet (11) is provided at the left end of the waste gas filling tower (1), and two groups of air outlets (12) are provided on the upper surface of the waste gas filling tower (1); and the air outlets (12) are symmetrically distributed on the left and right sides of the motor (41).

4. The rotary packed tower for waste gas treatment according to claim 1, characterized in that: A liquid distributor (5) is installed on the inner wall of the waste gas filling tower (1); a rotating top rod (4) passes through the middle of the liquid distributor (5); and a first liquid delivery pipe (51) is connected to the right end of the liquid distributor (5).

5. The rotary packed tower for waste gas treatment according to claim 4, characterized in that: A drainage hole (54) is provided on the lower surface of the liquid distributor (5), a first packing layer (2) is distributed at the lower end of the liquid distributor (5), and a second packing layer (21) is laid at the lower end of the first packing layer (2).

6. The rotary packed tower for waste gas treatment according to claim 1, characterized in that: A spray ring plate (53) is fixed to the inner wall of the waste gas packing tower (1); the spray ring plate (53) and the center rod (44) are located at the interval between the first packing layer (2) and the second packing layer (21); and the right end of the spray ring plate (53) is connected to the second liquid delivery pipe (52).

7. The rotary packed tower for waste gas treatment according to claim 1, characterized in that: The upper surface of the packing support plate (3) is welded with a connecting column (31), and the lower end of the rotating bottom rod (45) is movably connected to the fixed horizontal plate (16) through a limit block (17); and the front and rear ends of the fixed horizontal plate (16) are welded to the inner wall of the exhaust gas packing tower (1).

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