Pneumatic slurry stirring device for desulfurizing tower

Abstract

The utility model provides a pneumatic slurry stirring device for a desulfurizing tower, which is characterized in that the front end of a high-pressure air pipe is connected with an air compressor, and a stirring device is arranged at the tail end of the high-pressure air pipe, the high-pressure air pipe is a rigid pipe, a cavity is arranged in the stirring device, and the high-pressure air pipe is communicated with the cavity; the stirring device is rotationally connected with the high-pressure air pipe through a rotary connecting seat, a plurality of side lugs which are circumferentially and uniformly distributed are arranged on the outer side of the stirring device, air channels are formed in the side lugs and are communicated with the stirring device, air spraying openings are formed in the tail ends of the air channels, and the air spraying direction of the air spraying openings is located on the tangent line of a circle with the center of the stirring device as the circle center. The stirring device is driven to rotate through high-pressure gas, gas is sprayed out from the gas spraying openings of the side lugs for stirring, the stirring effect is good, energy consumption is low, and the applicability and reliability of the device are improved through the design of the stirring device in various shapes and the protection structure.

Description

Technical Field

[0001] The utility model relates to the technical field, in particular to a desulfurization tower slurry pneumatic stirring device. Background Art

[0002] The main function of the desulfurization tower slurry is to absorb SO2 from the flue gas through a chemical reaction, converting it into calcium sulfite, which is further oxidized into calcium sulfate. The desulfurization tower slurry is made by crushing limestone and mixing it with water. The resulting limestone slurry has a particle size of 90% less than 325 mesh, which meets the slurry requirements of the absorption tower.

[0003] In the desulfurization tower, sufficient stirring of the slurry inside is crucial to improving the desulfurization efficiency. Traditional stirring methods often rely on mechanical stirring devices, such as stirring paddles or impellers. These devices are prone to wear during operation, have high energy consumption, and the stirring is not uniform enough. Utility Model Content

[0004] Based on the above technical problems, the utility model proposes a desulfurization tower slurry pneumatic stirring device.

[0005] A desulfurization tower slurry pneumatic stirring device comprises: a high-pressure air pipe and a stirring device, wherein the front end of the high-pressure air pipe is connected to an air compressor, and the stirring device is arranged at the end of the high-pressure air pipe. The high-pressure air pipe is a rigid pipe, and the stirring device has a cavity inside. The high-pressure air pipe is connected to the cavity, and the stirring device is rotatably connected to the high-pressure air pipe through a rotating connecting seat. The outer side of the stirring device is provided with a plurality of side ears evenly distributed in a circle, and the side ears have air passages inside. The air passages are connected to the stirring device, and an air jet is provided at the end thereof, and the jet direction of the air jet is on the tangent of a circle with the center of the stirring device as the center.

[0006] Preferably, the stirring device is a circular hollow cylinder, and four side ears are provided on the outer wall of the stirring device. The side ears are arc-shaped, and the air jet is a vertical narrow mouth.

[0007] Preferably, the stirring device is a hollow cubic column, and a horizontal straight tube is provided on each of the four sides of the stirring device. The side ears are connected and fixed to the straight tubes, and the side ears are connected to the stirring device through the straight tubes. The end of the side ears is provided with the vertical air jet.

[0008] Preferably, a baffle is provided on the outside of the air jet to close it, and the baffle is installed on one side of the air jet via a hinge with a spring.

[0009] Beneficial effects:

[0010] 1. Compressed air is delivered to the stirring device through a high-pressure air pipe and evenly ejected through the air jets on the side ears, forming a strong air flow disturbance to fully stir the slurry. This pneumatic stirring method can effectively break the bubbles and agglomeration in the slurry, increase the contact area between the slurry and the flue gas, and thus enhance the efficiency of the desulfurization reaction;

[0011] 2. The cavity design inside the stirring device and multiple side ear structures evenly distributed around the circumference enable the gas to be evenly distributed in the slurry, avoiding the problem of local uneven stirring. In addition, the jet direction of the air jet is designed to be on the tangent of the circle with the center of the stirring device as the center, which helps to form a rotating airflow and further improve the uniformity of stirring. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 Shows a structural diagram of embodiment 1;

[0013] Figure 2 The structure diagram of the stirring device in the first embodiment is shown;

[0014] Figure 3 shows a structural diagram of embodiment 2;

[0015] Figure 4 The structure diagram of the stirring device in the second embodiment is shown;

[0016] Figure 5 The structure diagram of the side ear in Example 2 is shown. DETAILED DESCRIPTION

[0017] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0018] Example 1

[0019] like Figures 1 to 5 The desulfurization tower slurry pneumatic stirring device 2 shown includes a high-pressure air pipe 1 and a stirring device 2. The front end of the high-pressure air pipe 1 is connected to the air compressor, and the stirring device 2 is arranged at the end of the high-pressure air pipe 1. The high-pressure air pipe 1 is a rigid pipe, and the stirring device 2 has a cavity inside. The high-pressure air pipe 1 is connected to the cavity. The stirring device 2 is rotatably connected to the high-pressure air pipe 1 through a rotating connecting seat 3. A plurality of side ears 4 uniformly distributed in a circle are provided on the outside of the stirring device 2. The side ears 4 have air passages inside. The air passages are connected to the stirring device 2, and an air jet 5 is provided at the end thereof. The jet direction of the air jet 5 is on the tangent of a circle with the center of the stirring device 2 as the center, which helps to form a rotating airflow and further improve the uniformity of stirring.

[0020] Example 2

[0021] like Figure 1~Figure 2 As shown, the stirring device 2 is a circular hollow cylinder, and four side ears 4 are provided on the outer wall of the stirring device 2. The side ears 4 are arc-shaped, and the air jet 5 is a vertical narrow mouth, which can generate a strong tangential thrust to make the stirring more sufficient.

[0022] Example 3

[0023] like Figures 3 to 5 As shown, the stirring device 2 is a hollow cubic column, and a horizontal straight pipe 6 is provided on each of the four sides of the stirring device 2. The side ears 4 are connected and fixed to the straight pipe 6, and the side ears 4 are connected to the stirring device 2 through the straight pipe 6. A vertical jet port 5 is provided at the end of the side ear 4, providing a selection of stirring devices 2 of different shapes to adapt to different desulfurization tower structures and stirring requirements.

[0024] As a further improvement, a baffle 8 is provided on the outside of the air jet 5 to close it. The baffle 8 is installed on one side of the air jet 5 through a hinge with a spring. When the air jet pressure is insufficient, the baffle 8 is automatically closed under the action of the spring to prevent the slurry from flowing back.

[0025] As a further improvement, a number of vertical triangular ridges 7 are provided on the outside of the straight tube 6 to enhance the stirring effect.

[0026] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A desulfurization tower slurry pneumatic stirring device, comprising: A high-pressure air pipe and a stirring device, wherein the front end of the high-pressure air pipe is connected to the air compressor, and the stirring device is arranged at the end of the high-pressure air pipe. It is characterized in that the high-pressure air pipe is a rigid pipe, the stirring device has a cavity inside, the high-pressure air pipe is connected to the cavity, the stirring device is rotatably connected to the high-pressure air pipe through a rotating connecting seat, the outside of the stirring device is provided with a plurality of side ears evenly distributed in a circle, the side ears have an air duct inside, the air duct is connected to the stirring device, and an air jet is provided at the end thereof, and the jet direction of the air jet is on the tangent of a circle with the center of the stirring device as the center.

2. The desulfurization tower slurry pneumatic stirring device according to claim 1 is characterized in that: The stirring device is a circular hollow cylinder. Four side ears are arranged on the outer wall of the stirring device. The side ears are arc-shaped. The air jet is a vertical narrow mouth.

3. The desulfurization tower slurry pneumatic stirring device according to claim 1, characterized in that: The stirring device is a hollow cubic column, and a horizontal straight tube is provided on each of the four sides of the stirring device. The side ears are connected and fixed to the straight tubes, and the side ears are connected to the stirring device through the straight tubes. The ends of the side ears are provided with vertical air jets.

4. The desulfurization tower slurry pneumatic stirring device according to claim 3 is characterized in that: A baffle plate capable of closing the air jet is provided on the outside of the air jet, and the baffle plate is installed on one side of the air jet through a hinge with a spring.

Images