Boiler flue gas treatment device

Abstract

The present application discloses a boiler flue gas treatment device, which includes a flue pipe, a purification component and an agitation component, wherein the purification component includes a cylinder, a spray rack, a partition and a water collecting bin, the partition is fixed on the inner wall of the cylinder, the spray rack is fixed at the top opening of the cylinder, the bottom end of the cylinder is connected to the water collecting bin, and the flue pipe passes through the bottom end of the water collecting bin; the agitation component includes a central shaft, fan blades, a support frame and a stirring bracket, the support frame is fixed to the top end of the flue pipe, a bearing is installed at the center of the support frame, the support frame is connected to the central shaft through the bearing, the first end of the central shaft is located inside the flue pipe, the second end of the central shaft is located outside the flue pipe, the fan blade is installed on the first end of the central shaft, the stirring bracket is fixed on the outer wall of the central shaft, and the stirring bracket is located outside the flue pipe.

Description

Technical Field

[0001] The present application belongs to the field of power station boilers, and specifically relates to a boiler flue gas treatment device. Background Art

[0002] Currently, power plant boilers generate large amounts of flue gas during operation. This flue gas contains a large amount of dust. If not removed, it pollutes the environment and seriously harms human health. Furthermore, if the flue gas temperature is too high and is not cooled, it can burn the flue gas passages. Existing boiler flue gas treatment devices have limited removal and cooling effects. Summary of the Invention

[0003] The present application discloses a boiler flue gas treatment device to solve the problem that existing boiler flue gas treatment devices have average impurity removal and cooling effects.

[0004] In order to solve the above problems, this application adopts the following technical solutions:

[0005] A boiler flue gas treatment device comprises: a flue pipe, a purification component and a stirring component, wherein the purification component comprises a cylinder, a spray rack, a partition and a water collecting bin, the partition is fixed to the inner wall of the cylinder, the spray rack is fixed at the top opening of the cylinder, the bottom end of the cylinder is connected to the water collecting bin, and the flue pipe passes through the bottom end of the water collecting bin; the stirring component comprises a central shaft, fan blades, a support frame and a stirring bracket, the support frame is fixed to the top end of the flue pipe, a bearing is installed at the center of the support frame, the support frame is connected to the central shaft through the bearing, the first end of the central shaft is located inside the flue pipe, the second end of the central shaft is located outside the flue pipe, the fan blade is installed at the first end of the central shaft, the stirring bracket is fixed to the outer wall of the central shaft, and the stirring bracket is located outside the flue pipe.

[0006] The technical solution adopted in this application can achieve the following beneficial effects:

[0007] In the boiler flue gas treatment device disclosed in the embodiment of the present application, high-temperature boiler flue gas enters the water collecting bin and is first preliminarily cooled by the condensed water in the water collecting bin. The flue gas airflow drives the fan blades to rotate, and the fan blades drive the rotation of the stirring bracket through the central axis. The stirring bracket stirs the condensed water, thereby increasing the heat exchange efficiency of the condensed water; the boiler flue gas then moves upward and contacts the droplets sprayed from the spray rack, thereby performing secondary cooling, and the droplets can remove impurities in the flue gas and drip into the water collecting bin, thereby more effectively removing impurities in the flue gas and reducing the temperature of the boiler flue gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 A schematic diagram of a boiler flue gas treatment device disclosed in an embodiment of the present application;

[0009] Figure 2 A schematic structural diagram of a stirring assembly of a boiler flue gas treatment device disclosed in an embodiment of the present application;

[0010] Figure 3 This is a schematic diagram of the fan blades of the boiler flue gas treatment device disclosed in an embodiment of the present application.

[0011] Description of reference numerals:

[0012] 1-Smoke pipe,

[0013] 2-Purification component, 21-Cylinder, 22-Spray rack, 23-Partition, 24-Water collection tank,

[0014] 3- stirring assembly, 31- umbrella cover, 32- central axis, 33- fan blades, 34- support frame. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0016] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0017] The boiler flue gas treatment device provided in the embodiment of the present application is described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0018] like Figures 1 to 3 As shown, an embodiment of the present application discloses a boiler flue gas treatment device, including a flue gas pipe 1, a purification component 2 and an agitation component 3.

[0019] Among them, the purification component 2 includes a cylinder 21, a spray rack 22, a partition 23 and a water collecting bin 24, the partition 23 is fixed on the inner wall of the cylinder 21, the spray rack 22 is fixed at the top opening of the cylinder 21, the bottom end of the cylinder 21 is connected to the water collecting bin 24, and the smoke pipe 1 passes through the bottom end of the water collecting bin 24; the stirring component 3 includes a central shaft 32, fan blades 33, a support frame 34 and a stirring bracket, the support frame 34 is fixed to the top of the smoke pipe 1, a bearing is installed at the center of the support frame 34, the support frame 34 is connected to the central shaft 32 through the bearing, the first end of the central shaft 32 is located inside the smoke pipe 1, the second end of the central shaft 32 is located outside the smoke pipe 1, the fan blades 33 are installed on the first end of the central shaft 32, the stirring bracket is fixed on the outer wall of the central shaft 32, and the stirring bracket is located outside the smoke pipe 1.

[0020] In practice, boiler flue gas flows upward from flue pipe 1 and, as it passes through water collection bin 24, is initially cooled by the condensed water in water collection bin 24. Fan blades 33 rotate as the flue gas flows, rotating the central shaft 32. This rotation, in turn, drives the stirring bracket, which stirs the condensed water and improves the heat exchange efficiency of the condensed water. The boiler flue gas then flows upward and enters cylinder 21, where it comes into contact with droplets sprayed from spray rack 22, removing impurities from the flue gas. This process also provides secondary cooling for the flue gas, with the droplets containing the impurities falling into water collection bin 24.

[0021] In one possible implementation, the second end of the central shaft 32 can be connected to an umbrella-shaped cover 31. Furthermore, the bottom diameter of the umbrella-shaped cover 31 is larger than the diameter of the smoke pipe 1. The provision of the umbrella-shaped cover 31 allows the droplets from the spray rack 22 to be collected in the water collection bin 24 instead of falling into the smoke pipe 1.

[0022] In a possible implementation, a thread may be provided at the bottom edge of the cylinder 21, and the cylinder 21 is movably connected to the water collecting bin 24 via the thread. The thread allows the cylinder 21 to be matched with the water collecting bin 24, thereby facilitating disassembly.

[0023] In one possible implementation, the baffles 23 are evenly distributed on the inner wall of the cylinder 21. Furthermore, the baffles 23 can be tilted on the inner wall of the cylinder 21. The installation of the baffles 23 increases the contact area between the boiler flue gas and the spray, while allowing condensed water droplets from the spray to flow down the tilted baffles 23.

[0024] In one possible implementation, the sidewalls of the water collection tank 24 are provided with a water inlet and a water outlet. The water outlet is connected to a wastewater treatment device. Specifically, condensed water enters the water inlet, treats the boiler flue gas, and then condenses into the water collection tank 24. The wastewater containing impurities is then discharged into the wastewater treatment device, where it undergoes further treatment, thereby achieving environmental protection.

[0025] In one possible implementation, the spray rack 22 may be connected to a water inlet pipe, and a pressure pump may be connected to one end of the water inlet pipe away from the spray rack 22. In actual application, since the cylinder 21 is relatively high, a pressure pump is required to pressurize water to the spray rack 22 so that the spray rack 22 can spray water mist.

[0026] In actual applications, smoke may still contain other harmful substances after being cleaned by mist droplets. Therefore, in an optional solution, a smoke evolution layer can be connected to the top of the cylinder 21. The cleaned smoke enters the smoke evolution layer, which further processes it to reduce pollution to the environment.

[0027] In the above-mentioned application embodiment, the provision of the water collection bin 24 enables preliminary cooling of the flue gas; the provision of the stirring assembly 3 enables the fan blades 33 to rotate using the flue gas flow, which in turn drives the stirring bracket to rotate, thereby reducing energy consumption; the provision of the spray rack 22 not only enables secondary cooling of the flue gas but also removes impurities in the flue gas, thereby reducing environmental pollution. Therefore, the above-mentioned embodiment can achieve better impurity removal and cooling effects in the boiler flue gas treatment device.

[0028] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A boiler flue gas treatment device, characterized in that: include: A smoke pipe (1), a purification component (2) and an agitation component (3), wherein: The purification assembly (2) comprises a cylinder (21), a spray rack (22), a partition (23) and a water collection bin (24); the partition (23) is fixed on the inner wall of the cylinder (21), and the partition (23) is tiltedly arranged on the inner wall of the cylinder (21); the spray rack (22) is fixed at the top opening of the cylinder (21), the bottom end of the cylinder (21) is connected to the water collection bin (24), and the smoke pipe (1) passes through the bottom end of the water collection bin (24); The stirring assembly (3) comprises a central shaft (32), a fan blade (33), a support frame (34) and a stirring bracket, wherein the support frame (34) is fixed to the top end of the smoke pipe (1), a bearing is installed at the center of the support frame (34), and the support frame (34) is connected to the central shaft (32) through the bearing, a first end of the central shaft (32) is located inside the smoke pipe (1), and a second end of the central shaft (32) is located outside the smoke pipe (1), the fan blade (33) is installed on the first end of the central shaft (32), the stirring bracket is fixed to the outer wall of the central shaft (32), and the stirring bracket is located outside the smoke pipe (1); the second end of the central shaft (32) is connected to the umbrella cover (31), and the bottom end diameter of the umbrella cover (31) is larger than the diameter of the smoke pipe (1).

2. The device according to claim 1, characterized in that A thread is provided at the bottom edge of the cylinder (21), and the cylinder (21) is movably connected to the water collecting bin (24) via the thread.

3. The device according to claim 1, characterized in that The partitions (23) are evenly distributed on the inner wall of the cylinder (21).

4. The device according to claim 1, characterized in that A water inlet and a water outlet are provided on the side wall of the water collecting bin (24).

5. The device according to claim 4, characterized in that The water outlet is connected to a wastewater treatment device.

6. The device according to claim 1, characterized in that The spray rack (22) is connected to a water inlet pipe, and one end of the water inlet pipe away from the spray rack (22) is connected to a pressure pump.

7. The device according to claim 1, characterized in that The top end of the cylinder (21) is connected to a smoke evolution layer.

Images