CN206229146U - A kind of rotational flow and spray combination unit of efficient desulfurizing and dust collecting - Google Patents

Abstract

The utility model discloses a high-efficiency desulfurization and dust removal swirl spray combination device, which relates to the technical field of desulfurization and dust removal equipment. The swirl gas distribution and desulfurization and dust removal layer is located above the flue gas inlet. The swirl gas distribution and desulfurization and dust removal layer includes a cooling spray device and the first multi-pass swirl gas distribution plate. The first multi-pass swirl gas distribution plate is set on the cooling spray device. Above, the spray desulfurization and dust removal layer is composed of more than two layers of desulfurization spray devices, and a second multi-pass swirling air distribution plate is arranged between the adjacent two layers of desulfurization spray devices. The desulfurization spray devices are staggered by nozzles It consists of an upper spraying device and a lower spraying device, and the desulfurization spraying device is connected with the desulfurization slurry pool through an independent circulating pump. This device is mainly used for flue gas treatment in the brick and tile industry. Under the condition of ensuring high desulfurization and dust removal efficiency, it can not only reduce energy consumption and water consumption, but also reduce investment costs, and is more suitable for the flue gas volume and Changes in the concentration of pollutants in the gas.

Description

A high-efficiency desulfurization and dust removal swirl spray combination device

Technical field:

The utility model relates to a high-efficiency desulfurization and dust removal swirl spray combination device, which belongs to the technical field of desulfurization and dust removal equipment in brick factories.

Background technique:

Flue gas dust removal mainly includes three categories: dry dust removal, wet desulfurization dust removal and electric dust removal. Dry dust removal has simple structure, low investment, high dust removal efficiency and convenient operation, but it is easy to cause secondary pollution; electric dust removal has high dust removal efficiency, large amount of flue gas treatment, and low resistance, but its efficiency is affected by the electrostatic properties of dust, and its appearance Huge, expensive investment, high operation and maintenance requirements, rarely used in the general industrial field, wet desulfurization and dust removal is a method that uses a liquid desulfurizer to react with SO ₂ in the flue gas to remove it, and the equipment used in this method is simple , stable and reliable operation, high desulfurization efficiency, is an effective desulfurization method for large-scale application in the industry.

Traditional flue gas desulfurization and dust removal treatment equipment needs to perform desulfurization and dust removal separately, and the desulfurization and dust removal devices are equipped with independent processing devices, resulting in large investment in equipment, complex treatment process and high cost. Therefore, it is an urgent problem to develop a desulfurization and dust removal device with integrated desulfurization and dust removal, small footprint, low investment cost, good desulfurization and dust removal effect, and low energy consumption.

Invention content:

In view of the above problems, the technical problem to be solved by the utility model is to provide a swirl spray combination device for efficient desulfurization and dust removal. It includes the absorption tower body 1, the first multi-pass swirl gas distribution plate 2, cooling spray device 3, desulfurization spray device 4, lower spray device 5, upper spray device 6, demister layer 7, tower top row The gas cylinder 8 and the flue gas inlet 9, the absorption tower body 1 are sequentially provided with a swirl gas distribution and desulfurization and dust removal layer a, a spray desulfurization and dust removal layer b, a demisting layer 7 and a top exhaust pipe 8 in the absorption tower body 1. Gas flow distribution and desulfurization and dust removal layer a is located above the flue gas inlet 9, swirl gas distribution and desulfurization and dust removal layer a includes cooling spray device 3 and first multi-pass swirl gas distribution plate 2, the first multi-pass swirl gas distribution plate 2 is set Above the cooling spray device 3, the spray desulfurization and dust removal layer b is composed of more than two layers of desulfurization spray devices 4, and a second multi-pass swirl gas distribution plate 2- 1. The desulfurization spraying device 4 is composed of an upper spraying device 5 and a lower spraying device 6 with sprinklers arranged alternately. The desulfurization spraying device 4 is connected to the desulfurization slurry pool through an independent circulation pump 4-1.

Preferably, the spray heads of the upper spray device 5 and the lower spray device 6 are hemispherical atomizing spray heads d.

As a preference, the first multi-pass swirl air distribution plate 2 has the same structure as the second multi-pass swirl air distribution plate 2-1, and the mid-range blade a-2 of the first multi-pass swirl air distribution plate 2 The number is twice the number of blades a-3 in the inner distance, the number of blades a-1 in the outer distance is three times the number of blades a-3 in the inner distance, between the blade a-2 in the middle distance and the blade a-3 in the inner distance 1. An annular fixing plate c is fixedly connected between the outer blade a-1 and the middle blade a-2.

As a preference, the swirl gas distribution and desulfurization and dust removal layer a plays the role of uniform gas distribution and primary reduction of dust, sulfur dioxide and cooling high-temperature flue gas in the flue gas, so that the gas can be swirled up evenly in the desulfurization tower to avoid the formation of gas short flow.

As a preference, the absorption tower body 1 is made of glass fiber reinforced plastic.

Beneficial effects of the utility model: its structural design is reasonable, dust removal and desulfurization devices are integrated, and the floor space is small. During use, the desulfurization slurry is transported to the spray layer through independent circulating pumps, and the flue gas enters the desulfurization The tower is purified after passing through the swirl gas distribution and desulfurization and dust removal layer and the spray desulfurization and dust removal layer. This device is mainly used for flue gas treatment in the brick and tile industry. Under the condition of ensuring high desulfurization and dust removal efficiency, it can not only reduce energy consumption, It can also reduce investment, and is more adaptable to changes in the flue gas volume of brick factories and the concentration of pollutants in the gas.

Description of drawings:

For ease of illustration, the utility model is described in detail by the following specific implementation and accompanying drawings.

Fig. 1 is a structural representation of the utility model;

Fig. 2 is the structural representation of the first multi-pass swirling gas distribution plate in the utility model;

Fig. 3 is a structural schematic diagram of the hemispherical atomizing spray head in the upper spray device and the lower spray device of the present invention.

In the figure: 1. The body of the absorption tower; 2. The first multi-pass swirl gas distribution plate; 2-1. The second multi-pass swirl gas distribution plate; 3. Cooling spray device; 4. Desulfurization spray device; 4- 1. Circulation pump; 5. Lower spraying device; 6. Upper spraying device; 7. Demister layer; 8. Tower top exhaust pipe; 9. Flue gas inlet; a. Swirling gas distribution and desulfurization and dust removal layer; a -1, outer blade; a-2, mid-range blade; a-3, inner blade; b, spray desulfurization and dust removal layer; c, annular fixed plate; d, hemispherical atomizing spray head.

detailed description:

As shown in Figures 1-3, this specific embodiment adopts the following technical scheme: it includes the absorption tower body 1, the first multi-pass swirling air distribution plate 2, the cooling spray device 3, the desulfurization spray device 4, the lower spray Device 5, upper spray device 6, defogging layer 7, tower top exhaust pipe 8 and flue gas inlet 9, the absorption tower body 1 is provided with swirl gas distribution and desulfurization dust removal layer a, spray desulfurization layer a from bottom to top Dust removal layer b, mist removal layer 7 and tower top exhaust pipe 8, swirl gas distribution and desulfurization and dust removal layer a is located above the flue gas inlet 9, swirl gas distribution and desulfurization and dust removal layer a includes cooling spray device 3 and the first multiple The first multi-pass swirling air distribution plate 2 is set above the cooling spray device 3, and the spray desulfurization and dust removal layer b is composed of more than two layers of desulfurization spray devices 4, and two adjacent layers of desulfurization spraying devices A second multi-pass swirl gas distribution plate 2-1 is arranged between the shower devices 4. The desulfurization spray device 4 is composed of an upper spray device 5 and a lower spray device 6 with nozzles arranged alternately. The desulfurization spray device 4 It is connected to the desulfurization slurry pool through an independent circulating pump 4-1.

Wherein, the nozzles of the upper spraying device 5 and the lower spraying device 6 are hemispherical atomizing shower heads d; the first multi-pass swirling air distribution plate 2 and the second multi-pass swirling air distribution plate 2 -1 has the same structure, the number of mid-range vanes a-2 of the first multi-pass swirling air distribution plate 2 is twice the number of inner-pass vanes a-3, and the number of outer-pass vanes a-1 is the same as the number of inner-pass vanes a-1 Three times the number of blades a-3, an annular fixed plate c is fixedly connected between the middle-range blade a-2 and the inner-range blade a-3, and between the outer-range blade a-1 and the middle-range blade a-2; The swirl gas distribution and desulfurization and dust removal layer a described above plays the role of uniform gas distribution and initial reduction of dust and sulfur dioxide in the flue gas and cooling of high-temperature flue gas, so that the gas swirls upward evenly in the desulfurization tower to avoid the formation of short gas flows; The tower body 1 of the absorption tower is made of fiberglass.

The basic principles and main features of the present utility model and the advantages of the present utility model have been shown and described above. Those skilled in the industry should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (4)

1. A swirl spray combination device for efficient desulfurization and dust removal, characterized in that it includes an absorption tower body (1), a first multi-pass swirl gas distribution plate (2), a cooling spray device (3), a desulfurization Spraying device (4), lower spraying device (5), upper spraying device (6), defogging layer (7), tower top exhaust pipe (8) and flue gas inlet (9), absorption tower body (1) There are swirling air distribution and desulfurization and dust removal layer (a), spray desulfurization and dust removal layer (b), demisting layer (7) and tower top exhaust pipe (8) in order from bottom to top. The desulfurization and dust removal layer (a) is located above the flue gas inlet (9). The swirl gas distribution and desulfurization and dust removal layer (a) includes a cooling spray device (3) and the first multi-pass swirl gas distribution plate (2). The swirling air distribution plate (2) is set above the cooling spray device (3), the spray desulfurization and dust removal layer (b) is composed of more than two layers of desulfurization spray devices (4), and the adjacent two layers of desulfurization spray devices (4) is provided with the second multi-pass swirling gas distribution plate (2-1), and the described desulfurization spraying device (4) consists of an upper spraying device (5) and a lower spraying device (6) that are staggeredly arranged by nozzles. ), the desulfurization spray device (4) is connected to the desulfurization slurry pool through an independent circulating pump (4-1). 2. A swirl spray combination device for efficient desulfurization and dust removal according to claim 1, characterized in that: the nozzles of the upper spray device (5) and the lower spray device (6) are hemispherical mist chemical sprinkler (d). 3. A swirl spray combination device for efficient desulfurization and dust removal according to claim 1, characterized in that: the first multi-pass swirl gas distribution plate (2) and the second multi-pass swirl gas distribution plate ( 2-1) The structure is the same, the number of mid-range vanes (a-2) of the first multi-pass swirling air distribution plate (2) is twice the number of inner-pass vanes (a-3), and the number of outer-pass vanes (a-1) is three times the number of inner blades (a-3), mid-range blades (a-2) and inner blades (a-3), outer blades (a-1) An annular fixing plate (c) is affixed between the mid-range blade (a-2). 4. A swirl spray combination device for high-efficiency desulfurization and dust removal according to claim 1, characterized in that: the absorption tower body (1) is made of glass fiber reinforced plastic.