CN215463219U

CN215463219U - Boiler flue gas desulfurization purifier

Info

Publication number: CN215463219U
Application number: CN202021027647.0U
Authority: CN
Inventors: 张沛沛; 李晓鹏; 庞东庆
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-08
Filing date: 2020-06-08
Publication date: 2022-01-11
Anticipated expiration: 2030-06-08

Abstract

The utility model discloses a boiler flue gas desulfurization purifier, which belongs to the field of environmental protection, wherein the upper end of a shell is provided with a flue outlet, the lower end of the shell is provided with a flue inlet, and a spraying device comprises a spraying frame and a fine pore plate; the spraying frame comprises a plurality of annular pipes, connecting blocks and connecting pipes, the annular pipes are different in diameter, the annular pipes are concentrically arranged and communicated with each other through the connecting pipes, the lower ends of the annular pipes are provided with spray heads, the outer side of the annular pipe with the largest diameter is provided with the connecting blocks, one end of each connecting block is connected with the annular pipe, the other end of each connecting block is connected with the inner wall of the shell, the outer side of the shell is provided with a liquid inlet pipe, and the liquid inlet pipe is connected with the annular pipe with the largest diameter; and a fine hole plate is arranged below the spraying frame, and uniformly distributed fine holes are formed in the fine hole plate. The utility model can fully utilize the absorption liquid and improve the mixing effect and the contact time of the flue gas and the absorption liquid, thereby improving the desulfurization effect.

Description

Boiler flue gas desulfurization purifier

Technical Field

The utility model relates to the field of environmental protection, in particular to a boiler flue gas desulfurization purifier.

Background

A dust remover is required to be installed on the boiler to purify flue gas, but the desulfurization effect of the existing boiler dust remover is not good enough and needs to be further improved and enhanced. The flue gas and the absorption liquid are fully mixed in the desulfurization process, and the contact time of the flue gas and the absorption liquid is prolonged, so that the desulfurization effect is improved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a boiler flue gas desulfurization purifier, which increases the contact time of boiler flue gas and absorption liquid and improves the desulfurization effect.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a boiler flue gas desulfurization purifier comprises a shell, wherein the upper end of the shell is provided with a flue outlet, the lower end of the shell is provided with a flue inlet, and the shell is also internally provided with a spraying device which comprises a spraying frame and a fine pore plate; the spraying frame comprises a plurality of annular pipes, connecting blocks and connecting pipes, the annular pipes are different in diameter, the annular pipes are concentrically arranged and communicated with each other through the connecting pipes, the lower ends of the annular pipes are provided with spray heads, the outer side of the annular pipe with the largest diameter is provided with the connecting blocks, one end of each connecting block is connected with the annular pipe, the other end of each connecting block is connected with the inner wall of the shell, the outer side of the shell is provided with a liquid inlet pipe, and the liquid inlet pipe is connected with the annular pipe with the largest diameter; and a fine hole plate is arranged below the spraying frame, and uniformly distributed fine holes are formed in the fine hole plate.

Further, a folded plate demister is installed at the upper end in the shell, a liquid blocking device is installed below the folded plate demister, and a spraying frame is installed below the liquid blocking device.

Further, the diameter of the fine hole is less than five millimeters.

Further, the casing lower extreme is the back taper, and the leakage fluid dram has been seted up to the casing lower extreme, has the valve on the leakage fluid dram, and there is the supporting leg casing below.

Furthermore, after the flue inlet enters the shell, the lower part of the shell is bent and extends for a certain length, so that an outlet of the flue inlet in the shell is below the liquid level.

Furthermore, an overflow port is formed in the side face of the lower end of the shell, and an overflow box is installed outside the overflow port.

Furthermore, two spraying frames and two fine hole plates are installed in the shell, and each spraying frame corresponds to one fine hole plate.

Has the advantages that: according to the utility model, the spray rack sprays the absorption liquid to the fine pore plate, the absorption liquid can be stored in the fine pores of the fine pore plate, the flue gas rises and can be better contacted and mixed with the absorption liquid through the fine pores, and the flue gas is sprayed again after coming out of the fine pores, so that the contact time of the flue gas and the absorption liquid is prolonged, the mixing effect is improved, and the desulfurization effect is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 in accordance with the present invention;

FIG. 3 is a bottom view of the spray rack of the present invention;

in the figure:

the device comprises a shell 1, a flue 2, a folded plate demister 3, a liquid stopper 4, a spray rack 5, a ring pipe 51, a connecting block 52, a connecting pipe 53, a spray head 6, a liquid inlet pipe 7, a thin hole plate 8, a thin hole 801, an overflow port 9, an overflow box 10, a liquid outlet 11, a valve 12, supporting legs 13 and a flue 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

With reference to fig. 1-3, the following examples can be obtained:

a boiler flue gas desulfurization purifier comprises a shell 1, wherein the upper end of the shell 1 is provided with a flue outlet 2, the lower end of the shell 1 is provided with a flue inlet 14, and a spraying device is also arranged in the shell 1 and comprises a spraying frame 5 and a pore plate 8; the spray rack 5 comprises a plurality of annular pipes 51, connecting blocks 52 and connecting pipes 53, wherein the annular pipes 51 are different in diameter, the annular pipes 51 are concentrically arranged and communicated with each other through the connecting pipes 53, the lower ends of the annular pipes 51 are provided with spray heads 6, the connecting blocks 52 are arranged on the outer sides of the annular pipes 51 with the largest diameter, one ends of the connecting blocks 52 are connected with the annular pipes 51, the other ends of the connecting blocks 52 are connected with the inner wall of the shell 1, the outer side of the shell 1 is provided with a liquid inlet pipe 7, and the liquid inlet pipe 7 is connected with the annular pipes 51 with the largest diameter; the fine hole plate 8 is arranged below the spraying frame 5, and the fine holes 801 are uniformly distributed on the fine hole plate 8.

Folded plate defroster 3 is installed to the upper end in the casing 1, and liquid blocking device 4 is installed to folded plate defroster 3 below, and spray frame 5 is installed to liquid blocking device 4 below.

The diameter of the fine holes 801 is less than five millimeters. The pores 801 can be made to store a certain amount of absorption liquid, and the diameter and the thickness of the pore plate 8 can be selected to be suitable according to the thickness of the pore plate 8 and the flue gas to be desulfurized actually.

The lower end of the shell 1 is inverted cone-shaped, a liquid outlet 11 is formed in the lower end of the shell 1, a valve 12 is arranged on the liquid outlet 11, and supporting legs 13 are arranged below the shell 1. May be used to drain liquids.

After the flue inlet 14 enters the shell 1, the lower part of the shell 1 is bent and extends for a certain length, so that the outlet of the flue inlet 14 in the shell 1 is below the liquid level. The flue gas can be preliminarily absorbed in the absorption liquid.

An overflow port 9 is formed in the side face of the lower end of the shell 1, and an overflow box 10 is installed outside the overflow port 9.

Two spray racks 5 and two fine pore plates 8 are installed in the shell 1, and each spray rack 5 corresponds to one fine pore plate 8. The spraying effect can be further improved by arranging two layers of fine pore plates 8.

The working principle is as follows: the flue gas enters the shell 1 from the air inlet channel, firstly the bent flue gas passing through the air inlet channel is sprayed out from the liquid level, and is absorbed by the absorption liquid for the first time, and then the flue gas rises; a part of the liquid sprayed from the spray head 6 below the spray frame 5 is stored in the fine holes 801 in the fine hole plate 8, which can be explained by capillary action and liquid tension; after entering the fine holes 801, the flue gas may push the liquid column in the fine holes 801 to rise, and after reaching the upper ends of the fine hole plates 8, the liquid column will be ejected in a manner similar to air bubbles, or the liquid column is broken by the flue gas, the liquid column is partially separated from the fine holes 801, and the flue gas will rise after being mixed with the broken liquid column; finally, the flue gas passes through the fine pore plate 8 and then is sprayed by the spraying frame 5 again; the smoke continuously rises and passes through the liquid stopper 4 and the folded plate demister 3 and then is discharged from the smoke outlet flue 2; before the work begins, a certain amount of absorption liquid can be injected to reach the overflow port 9, and the liquid level of the liquid can naturally wait for reaching the overflow port 9; the absorption liquid can adopt hydrogen peroxide; the liquid accumulated in the continuous spraying process flows into an overflow tank 10 from an overflow port 9 for recovery treatment, and other liquid can be discharged from a liquid discharge port 11 below the shell 1.

Meanwhile, the utility model can more efficiently utilize the absorption liquid, reduce the use of the absorption liquid and save the cost.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A boiler flue gas desulfurization purifier comprises a shell (1) and is characterized in that a flue outlet (2) is formed in the upper end of the shell (1), a flue inlet (14) is formed in the lower end of the shell (1), a spraying device is further installed in the shell (1), and the spraying device comprises a spraying frame (5) and a pore plate (8); the spraying frame (5) comprises a plurality of annular pipes (51), connecting blocks (52) and connecting pipes (53), the annular pipes (51) are different in diameter, the annular pipes (51) are concentrically placed and communicated with each other through the connecting pipes (53), a spray head (6) is installed at the lower end of each annular pipe (51), the connecting block (52) is installed on the outer side of the annular pipe (51) with the largest diameter, one end of each connecting block (52) is connected with the annular pipe (51) while the other end is connected with the inner wall of the shell (1), a liquid inlet pipe (7) is arranged on the outer side of the shell (1), and the liquid inlet pipe (7) is connected with the annular pipe (51) with the largest diameter; a fine pore plate (8) is arranged below the spray frame (5), and uniformly distributed fine pores (801) are uniformly formed in the fine pore plate (8); the diameter of the fine holes (801) is less than five millimeters; two spraying frames (5) and two fine pore plates (8) are installed in the shell (1), and each spraying frame (5) corresponds to one fine pore plate (8).

2. The boiler flue gas desulfurization purifier of claim 1, wherein a folded plate demister (3) is installed at the upper end in the housing (1), a liquid stopper (4) is installed below the folded plate demister (3), and a spray rack (5) is installed below the liquid stopper (4).

3. The boiler flue gas desulfurization purifier as recited in claim 1, wherein the lower end of said casing (1) is in the shape of an inverted cone, the lower end of said casing (1) is provided with a liquid discharge port (11), said liquid discharge port (11) is provided with a valve (12), and support legs (13) are provided below said casing (1).

4. The boiler flue gas desulfurization purifier as recited in claim 1, wherein said flue gas inlet duct (14) is bent and extended to a length below said housing (1) after entering said housing (1) such that an outlet of said flue gas inlet duct (14) in said housing (1) is below a liquid level.

5. The boiler flue gas desulfurization purifier of claim 1, wherein an overflow port (9) is formed on the side surface of the lower end of the casing (1), and an overflow tank (10) is installed outside the overflow port (9).