Spraying purification tower

Abstract

The utility model provides a spray purification tower and relates to the technical field of gas purification. The tower comprises a tower body and a liquid storage tank, the top of the tower body is conical, the part below the top is cylindrical, and the liquid storage tank communicated with the interior of the tower body is arranged outside the cylindrical tower body at the lower part of the tower body; an upward exhaust port is formed in the top of the tower body, an air inlet is formed in the side face of the lower portion of the tower body, the lower edge of the air inlet is higher than the upper edge of the liquid storage tank, a first pore plate is arranged in the tower body and located above the air inlet, a second pore plate is arranged above the first pore plate and close to the exhaust port, and a first spraying pipe is arranged between the first pore plate and the second pore plate. A conical demisting plate with a sharp top is arranged between the first spraying pipe and the second pore plate, a hollow ball filler is laid above the first pore plate, a molecular sieve filler is laid above the second pore plate, a disc-shaped heating pipe is arranged between the second pore plate and the exhaust port, and the molecular sieve filler submerges the heating pipe. The spray purification tower disclosed by the utility model is high in pollutant removal rate and simple to maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of gas purification, and specifically, to a spray purification tower. Background Art

[0002] The liquid spray waste gas treatment method is widely used in fields such as the chemical industry, electronic equipment, metallurgy, electroplating, textile, food, and machinery manufacturing that generate acidic or alkaline waste gas. After the acidic or alkaline waste gas enters the spray purification tower, the acidic or alkaline waste gas makes full contact with the absorption liquid in a gas-liquid two-phase state. The pollution components in the waste gas are dissolved and chemically react with the absorption liquid, and the pollutants in the waste gas are removed, and the gas is purified. The spray purification tower can also remove dust particles in the waste gas. After the dust-containing gas enters the spray purification tower, part of the dust particles move with the gas. The dust is adsorbed by the impact of the mist-like liquid droplets and combined with the sprayed liquid. Through sufficient mixing, the dust in the dust-containing gas is captured by the liquid.

[0003] The existing spray purification tower, as a wet dust removal and purification device, has problems such as low dust removal and purification efficiency, unsatisfactory pollutant removal rate, and insufficiently dry purified gas. Summary of the Utility Model

[0004] Therefore, the utility model provides a spray purification tower to overcome the above problems existing in the prior art.

[0005] The technical solution of the utility model is as follows:

[0006] A spray purification tower includes a tower body and a liquid storage tank. The top of the tower body is conical, and the part below the top is cylindrical. A liquid storage tank communicating with the inside of the tower body is provided outside the cylindrical tower body at the lower part of the tower body. An upward exhaust port is provided at the top of the tower body, and an air inlet is opened on the side surface of the lower part of the tower body. The lower edge of the air inlet is higher than the upper edge of the liquid storage tank. A first orifice plate is provided inside the tower body, and the first orifice plate is located above the air inlet. A second orifice plate is provided above the first orifice plate near the exhaust port. A first spray pipe is provided between the first orifice plate and the second orifice plate. The first spray pipe is provided with a plurality of liquid spraying nozzles facing downward. A conical demisting plate with a pointed top is provided between the first spray pipe and the second orifice plate. A plurality of connecting rods are provided on the outer edge of the demisting plate and connected to the inner wall of the tower body. Hollow sphere fillers are laid above the first orifice plate, molecular sieve fillers are laid above the second orifice plate, and a disc-shaped heating pipe is provided between the second orifice plate and the exhaust port. The molecular sieve fillers cover the heating pipe.

[0007] As a preferred embodiment, a second spray pipe is provided between the first spray pipe and the first orifice plate. A plurality of nozzles that spray liquid downward are connected below the second spray pipe. A third orifice plate is provided between the first spray pipe and the second spray pipe. A first swirl plate is provided between the third orifice plate and the second spray pipe. A plurality of inclined blades are symmetrically arranged around the center of the first swirl plate.

[0008] As a preferred embodiment, a third spray pipe is provided between the second spray pipe and the first orifice plate. A plurality of nozzles that spray liquid downward are connected below the third spray pipe. A fourth orifice plate is provided between the second spray pipe and the third spray pipe. A second swirl plate is provided between the fourth orifice plate and the third spray pipe. The second swirl plate has the same structure as the first swirl plate.

[0009] As a preferred embodiment, the first spray pipe, the second spray pipe, and the third spray pipe are respectively connected to a water pump through pipelines. Valves are respectively provided between the first spray pipe and the water pump, between the second spray pipe and the water pump, and between the third spray pipe and the water pump. The water pump is provided with a water suction pipe leading to a liquid storage tank.

[0010] As a preferred embodiment, an observation and maintenance hole is opened on the side of the tower body. A first observation and maintenance hole is provided between the first orifice plate and the fourth orifice plate. A second observation and maintenance hole is provided between the fourth orifice plate and the third orifice plate. A third observation and maintenance hole is provided between the third orifice plate and the second orifice plate.

[0011] The working principle and beneficial effects of the present utility model are as follows:

[0012] For the spray purification tower provided by the present utility model, when in use, waste gas enters the spray purification tower from the air inlet. After entering the tower body, the waste gas gradually rises. At the same time, liquid is sprayed downward from part or all of the first spray pipe, the second spray pipe, or the third spray pipe. The liquid and the gas meet and undergo gas-liquid exchange processes such as dissolution, reaction, and absorption. After passing through processes such as demisting and molecular sieve drying, the purified gas is discharged from the exhaust port. The swirl plate provided in the tower body can guide the air flow to generate rotation, strengthening the contact and collision between the gas and the mist-like liquid. The sewage that has absorbed pollutants undergoes sedimentation and continues to add effective components. The clear liquid is sucked by the water pump, pressurized, and sprayed again, continuously circulating. The spray purification tower of the present utility model has a high pollutant removal rate and is simple to maintain. The purified gas does not need to be dried again. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments.

[0014] Figure 1 is a structural schematic diagram of the present utility model;

[0015] Figure 2It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 4 It is a schematic diagram of the three-dimensional structure of the utility model after cutting;

[0018] In the figure: 1. tower body; 11. first orifice plate; 12. second orifice plate; 13. defog plate; 14. first spray pipe; 15. heating pipe; 16. third orifice plate; 17. first swirl plate; 18. second spray pipe; 19. fourth orifice plate; 110. second swirl plate; 111. third spray pipe; 2. liquid storage tank; 3. air inlet; 4. exhaust port; 5. water pump; 6. first observation and maintenance hole; 7. second observation and maintenance hole; 8. third observation and maintenance hole; 9. valve. DETAILED DESCRIPTION

[0019] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Please refer to Figures 1 to 4 As shown, this embodiment provides a spray purification tower, which includes a tower body 1 and a liquid storage tank 2. The top of the tower body 1 is conical, and the bottom is cylindrical. The lower part of the tower body 1 is provided with a liquid storage tank 2 that communicates with the inside of the tower body 1 outside its cylindrical tower body. The top of the tower body 1 is provided with an upward exhaust port 4, and the lower side of the tower body 1 is provided with an air inlet 3, and the lower edge of the air inlet 3 is higher than the upper edge of the liquid storage tank 2. The inside of the tower body 1 is provided with a first orifice plate 11, which is located above the air inlet 3, and a second orifice plate 12 is provided above the first orifice plate 11 near the exhaust port 4. A first spray pipe 14 is provided between the first orifice plate 11 and the second orifice plate 12, and the first spray pipe 14 is provided with a plurality of nozzles that spray liquid downward, and a conical demister plate 13 with a pointed top is provided between the first spray pipe 14 and the second orifice plate 12, and the outer edge of the demister plate 13 is provided with a plurality of connecting rods connected to the inner wall of the tower body 1. Hollow ball filler (not shown) is laid on the top of the first orifice plate 11, and molecular sieve filler (not shown) is laid on the top of the second orifice plate 12. A disc-shaped heating tube 15 is provided between the second orifice plate 12 and the exhaust port 4, and the molecular sieve filler is laid to a height that covers the heating tube 15.

[0021] Further, a second spray pipe 18 is provided between the first spray pipe 14 and the first orifice plate 11. A plurality of nozzles for spraying liquid downward are connected below the second spray pipe 18. A third orifice plate 16 is provided between the first spray pipe 14 and the second spray pipe 18. A first swirl plate 17 is provided between the third orifice plate 16 and the second spray pipe 18. The first swirl plate 17 is symmetrically provided with a plurality of inclined blades around its center.

[0022] Further, a third spray pipe 111 is provided between the second spray pipe 18 and the first orifice plate 11. A plurality of nozzles for spraying liquid downward are connected below the third spray pipe 111. A fourth orifice plate 19 is provided between the second spray pipe 18 and the third spray pipe 111. A second swirl plate 110 is provided between the fourth orifice plate 19 and the third spray pipe 111. The second swirl plate 110 has the same structure as the first swirl plate 17.

[0023] In addition, the first spray pipe 14, the second spray pipe 18, and the third spray pipe 111 are respectively connected to the water pump 5 through pipelines. Valves 9 are respectively provided between the first spray pipe 14 and the water pump 5, between the second spray pipe 18 and the water pump 5, and between the third spray pipe 111 and the water pump 5. The water pump 5 is connected to a water suction pipe leading to the liquid storage tank 2.

[0024] For the convenience of observation and maintenance, an observation and maintenance hole is opened on the side of the tower body 1. A first observation and maintenance hole 6 is provided between the first orifice plate 11 and the fourth orifice plate 19. A second observation and maintenance hole 7 is provided between the fourth orifice plate 19 and the third orifice plate 16. A third observation and maintenance hole 8 is provided between the third orifice plate 16 and the second orifice plate 12.

[0025] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A spray purification tower, characterized in that: The tower body comprises a tower body and a liquid storage tank, the top of the tower body is conical, and the bottom of the tower body is cylindrical, the lower part of the tower body is provided with a liquid storage tank communicating with the inside of the tower body outside the cylindrical tower body; the top of the tower body is provided with an upward exhaust port, the side of the lower part of the tower body is provided with an air inlet, the lower edge of the air inlet is higher than the upper edge of the liquid storage tank, a first orifice plate is provided inside the tower body, the first orifice plate is located above the air inlet, a second orifice plate is provided above the first orifice plate near the exhaust port, a first spray pipe is provided between the first orifice plate and the second orifice plate, the first spray pipe is provided with a plurality of nozzles spraying liquid downward, a conical demister plate with a pointed top is provided between the first spray pipe and the second orifice plate, a plurality of connecting rods are provided on the outer edge of the demister plate to connect to the inner wall of the tower body, a hollow ball filler is laid above the first orifice plate, a molecular sieve filler is laid above the second orifice plate, a disc-shaped heating pipe is provided between the second orifice plate and the exhaust port, and the molecular sieve filler submerges the heating pipe.

2. The spray purification tower according to claim 1, characterized in that: A second spray pipe is provided between the first spray pipe and the first orifice plate, a plurality of nozzles for spraying liquid downward are connected below the second spray pipe, a third orifice plate is provided between the first spray pipe and the second spray pipe, a first swirl plate is provided between the third orifice plate and the second spray pipe, and the first swirl plate has a plurality of inclined blades symmetrically arranged around its center.

3. The spray purification tower according to claim 2, characterized in that: A third spray pipe is provided between the second spray pipe and the first orifice plate, a plurality of nozzles for spraying liquid downward are connected below the third spray pipe, a fourth orifice plate is provided between the second spray pipe and the third spray pipe, a second swirl plate is provided between the fourth orifice plate and the third spray pipe, and the second swirl plate has the same structure as the first swirl plate.

4. The spray purification tower according to claim 3, characterized in that: The first spray pipe, the second spray pipe and the third spray pipe are respectively connected to the water pump through pipelines. Valves are respectively provided between the first spray pipe and the water pump, between the second spray pipe and the water pump, and between the third spray pipe and the water pump. The water pump is provided with a pumping pipe leading to the liquid storage tank.

5. The spray purification tower according to claim 3, characterized in that: Observation and maintenance holes are opened on the side of the tower body. A first observation and maintenance hole is provided between the first orifice plate and the fourth orifice plate, a second observation and maintenance hole is provided between the fourth orifice plate and the third orifice plate, and a third observation and maintenance hole is provided between the third orifice plate and the second orifice plate.

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