CN206064045U - A kind of desulfurized dust collection column - Google Patents

Abstract

The utility model discloses a desulfurization and dust removal tower, which comprises a circulating water pool and a tower body, the tower body is installed in the circulating water pool, an exhaust cylinder is installed on the upper end of the tower body, and a demister is installed on the upper end of the tower body. Three brackets are equidistantly installed in the tower body and below the demister, and multiple spiral nozzles are equidistantly installed on each bracket, and inspection holes, three-stage spray nozzles, and three-stage spray nozzles are sequentially arranged outside the tower body from top to bottom. device, secondary spraying device and primary spraying device, the tower body and below the three brackets are respectively equipped with a third-stage swirl plate, a secondary swirl plate and a first-stage swirl plate, the tower outside the right The flue gas inlet pipe is installed on the side surface and under the primary swirl plate. The beneficial effect of the utility model is that the structure is simple and the practicability is strong.

Description

A desulfurization and dedusting tower

technical field

The utility model relates to a desulfurization and dust removal device, in particular to a desulfurization and dust removal tower.

Background technique

In industrial production, coal-fired boilers are an indispensable equipment, but the sulfur dioxide produced by combustion is an important indicator of air pollution. For biomass boilers located near central cities, the concentration of SO2 in flue gas is relatively low About 200mg/Nm3, but still can not meet the regional control requirements, such as Beijing "Emission Standards of Air Pollutants for Boilers" (DB11/139-2007) the emission concentration of sulfur dioxide requires no more than 20mg/Nm3. There is a demand for the construction of flue gas desulfurization equipment. Therefore, in recent years, a large number of flue gas desulfurization devices have emerged as the times require, with complex structures and high operating costs.

Utility model content

The purpose of this utility model is in order to solve the above-mentioned problem, has designed a kind of desulfurization and dedusting tower.

The technical scheme of the utility model to achieve the above object is, a desulfurization and dust removal tower, including a circulating water pool and a tower body, the tower body is installed in the circulating water pool, an exhaust tube is installed on the upper end of the tower body, and the upper end of the tower body is A mist eliminator is installed, and three brackets are equidistantly installed in the tower body and below the mist eliminator, and a plurality of spiral nozzles are equidistantly installed on each of the brackets. Hole, three-stage spraying device, two-stage spraying device and one-stage spraying device, the tower body and below the three brackets are respectively provided with three-stage swirl plate, two-stage swirl plate and first-stage swirl plate , the flue gas inlet pipe is installed on the right side surface of the tower outside and under the primary swirl plate.

The number of spiral nozzles on each support is 3.

The distances between the tertiary spraying device, the secondary spraying device and the primary spraying device are the same.

The third-stage spraying device, the second-stage spraying device and the first-stage spraying device are respectively located on one side of the three supports.

The desulfurization and dust removal tower manufactured by the technical scheme of the utility model has a steel outer shell, and a demister is arranged on the upper part of the tower body. The lower part of the tower consists of three stages of spraying, dust removal device and swirl plate. The bottom of the tower body is connected with the circulating water pool, which can effectively reduce the operating cost, and the structure is relatively simple. The device is easy to operate and has strong practicability.

Description of drawings

Fig. 1 is the structural representation of the desulfurization and dedusting tower described in the utility model;

In the figure, 1. Circulating pool; 2. Tower body; 3. Exhaust tube; 4. Demister; 5. Support; 6. Spiral nozzle; 7. Inspection hole; 10. First-level spraying device; 11. Third-level swirl plate; 12. Second-level swirl plate; 13. First-level swirl plate; 14. Air intake pipe.

detailed description

The utility model will be described in detail below in conjunction with the accompanying drawings. As shown in Figure 1, a desulfurization and dust removal tower includes a circulating water pool (1) and a tower body (2), and the tower body (2) is installed on the circulating water pool (1) Inside, the upper end of the tower body (2) is equipped with an exhaust tube (3), and the upper end of the tower body (2) is equipped with a demister (4), and the tower body (2) is located in the demister (4) Three brackets (5) are installed equidistantly below each bracket (5), and a plurality of spiral nozzles (6) are installed equidistantly on each bracket (5), and the tower body (2) is sequentially arranged from top to bottom Inspection hole (7), tertiary spraying device (8), secondary spraying device (9) and primary spraying device (10), inside the tower body (2) and below the three brackets (5) The third-stage swirl plate (11), the second-stage swirl plate (12) and the first-stage swirl plate (13) are respectively provided. The outer right side surface of the tower body (2) is located on the first-stage swirl plate (13 ) to install the flue gas inlet pipe (14); the number of spiral nozzles (6) on each bracket (5) is 3; the third-stage spraying device (8), the second-stage spraying device ( The distance between 9) and the first-level spraying device (10) is the same; the third-level spraying device (8), the second-level spraying device (9) and the first-level spraying device (10) are respectively located in three brackets (5) One side.

The characteristics of this embodiment are that the tower body is installed in the circulating water pool, the upper end of the tower body is equipped with an exhaust tube, the upper end of the tower body is installed with a demister, and the tower body is installed with three brackets equidistantly below the demister, each There are multiple spiral nozzles installed equidistantly on the bracket. Inspection holes, third-level spraying devices, second-level spraying devices and first-level spraying devices are arranged on the tower body from top to bottom. The tower body is located under the three brackets respectively. There are three-stage swirl plates, two-stage swirl plates and first-stage swirl plates. The flue gas inlet pipe is installed on the right side surface of the tower outside and below the first-stage swirl plates. The shell of the desulfurization and dust removal tower is made of steel. The upper part is arranged with a demister. The lower part of the tower consists of three stages of spraying, dust removal device and swirl plate. The bottom of the tower body is connected with the circulating water pool, which can effectively reduce the operating cost, and the structure is relatively simple. The device is easy to operate and has strong practicability.

In this embodiment, under the action of the induced draft fan, the flue gas enters the tower body through the flue gas inlet, and first impacts and mixes with the circulating water at the bottom of the tower, and the dust and particles with a large mass enter the bottom of the circulating pool under the action of gravity and centrifugal force Precipitate. The liquid-gas mixture containing fine particles or dust continues to flow upward along the tower body and enters the first-stage swirl plate. After passing through the swirl plate, part of the dust particles are thrown to the wall of the tower body under the action of centrifugal force. The flue gas that has been removed from the dust continues to go upwards. During the upward process, it is mixed with the mist liquid sprayed from the spiral nozzle on the spray device. The mixed liquid-gas mixture is still upward, and the liquid particles in the liquid-gas mixture continue to gather during the upward process. , forming large droplets that fall under the force of gravity. Others enter the secondary swirl plate, and after centrifugation, they are mixed with the mist liquid sprayed from the secondary spraying device, and then enter the third-stage swirl plate for centrifugal separation again. The separated gas is mixed with the mist liquid sprayed by the three-stage spraying device during the upward process. Nearly 85% of the liquid will separate under the force of gravity when traveling over a longer distance. There are still 15% of the fine droplets in the liquid-gas mixture that have not been separated, and finally pass through the demister installed on the upper part, and the droplets are absorbed into liquid after passing through the grid plate of the demister. The gas enters the exhaust pipe through the demister and is discharged into the atmosphere.

The above-mentioned technical solutions only embody the preferred technical solutions of the technical solutions of the present utility model, and some changes that may be made by those skilled in the art to some parts thereof reflect the principles of the present utility model and belong to the protection scope of the present utility model within.

Claims (4)

1. a kind of desulfurized dust collection column, including circulating water pool（1）And tower body（2）, it is characterised in that the tower body（2）Installed in following Ring pond（1）It is interior, the tower body（2）Upper end is provided with aiutage（3）, the tower body（2）Interior upper end is provided with demister（4）, The tower body（2）It is interior and be located at demister（4）Lower section is equidistant to be provided with three supports（5）, described each support（5）It is upper equidistant From being provided with multiple spiral nozzles（6）, the tower body（2）Inspection hole is sequentially provided with from top to bottom outward（7）, three-level spray equipment （8）, two grades of spray equipments（9）With one-level spray equipment（10）, the tower body（2）It is interior and be located at three supports（5）Lower section is respectively It is provided with three swirler plate（11）, two grades of spiral boards（12）With one-level spiral board（13）, the tower body（2）External right side surface and it is located at One-level spiral board（13）Lower section is installed by smoke inlet pipe（14）.

2. a kind of desulfurized dust collection column according to claim 1, it is characterised in that described each support（5）On spiral spray Mouth（6）Number be 3.

3. a kind of desulfurized dust collection column according to claim 1, it is characterised in that the three-level spray equipment（8）, two grades of sprays Shower device（9）With one-level spray equipment（10）The distance between it is identical.

4. a kind of desulfurized dust collection column according to claim 1, it is characterised in that the three-level spray equipment（8）, two grades of sprays Shower device（9）With one-level spray equipment（10）Three supports are located at respectively（5）Side.