Green brick roasting flue gas desulfurization device

Abstract

The utility model relates to the field of flue gas treatment devices, in particular to a green brick roasting flue gas desulfurization device. The green brick roasting flue gas desulfurization device comprises a desulfurization barrel, a rotationally connected gas guide pipe is arranged in the desulfurization barrel, a plurality of uniformly distributed gas injection pipes are mounted at the bottom of the gas guide pipe through a thread structure, the top ends of the gas injection pipes are communicated with the interior of the gas guide pipe, and an injection assembly for injecting flue gas is further arranged above the desulfurization barrel. According to the green brick roasting flue gas desulfurization device provided by the utility model, flue gas is injected from top to bottom, so that the phenomenon that liquid flows back into a flue gas pipeline can be avoided when the green brick roasting flue gas desulfurization device is used, and the pipeline can be more conveniently cleaned by a worker in the later period.

Description

Technical Field

[0001] This utility model relates to the field of flue gas treatment devices, and in particular to a desulfurization device for flue gas from brick firing. Background Technology

[0002] A desulfurization device for brick firing flue gas is an environmentally friendly device specifically designed to treat the sulfur-containing flue gas generated during the high-temperature firing of bricks in a kiln during brick and tile production. Its main purpose is to remove sulfur oxides (primarily sulfur dioxide, SO2) from the flue gas to reduce air pollution and meet environmental emission standards.

[0003] A flue gas desulfurization device with Chinese patent publication number CN219764967U, as described in its specification, involves injecting flue gas into the pipe from below outside the desulfurization tank. This injection method easily causes liquid to flow back into the pipe. Furthermore, since the outlet pipe is completely submerged inside the desulfurization tank and its opening faces upward, the flue gas and liquid may react within the distribution plate, increasing the difficulty of cleaning the distribution plate later.

[0004] Therefore, it is necessary to provide a new desulfurization device for brick firing flue gas to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a desulfurization device for flue gas from brick firing.

[0006] The desulfurization device for brick firing flue gas provided by this utility model includes: a desulfurization barrel, a rotating gas guide pipe inside the desulfurization barrel, a plurality of evenly distributed gas injection pipes installed at the bottom of the gas guide pipe through a threaded structure, the top of the gas injection pipes communicating with the inside of the gas guide pipe, and an injection component for injecting flue gas is also provided above the desulfurization barrel.

[0007] The injection assembly includes an upper processing frame and a lower processing frame. The upper and lower processing frames are fixedly installed on the top of the desulfurization tank and are coaxially distributed. A connecting air inlet pipe is fixedly installed on the side wall of the upper processing frame. A connecting pipe is installed between the upper and lower processing frames.

[0008] A drive rod is rotatably mounted inside the upper processing frame. The bottom end of the drive rod extends into the lower processing frame and is rotatably connected. A connecting pipe is provided between the drive rod and the air guide pipe.

[0009] Preferably, a plurality of evenly distributed blades are fixedly installed on the outer wall of the drive rod, and the outer wall of the blades abuts against and slides against the inner wall of the upper processing frame.

[0010] Preferably, the top of the desulfurization tank is rotatably connected to the outer wall of the connecting pipe via an installation groove, the bottom of the lower treatment frame is rotatably connected to the outer wall of the connecting pipe via an installation groove, the top of the connecting pipe extends into the lower treatment frame, and the top of the lower treatment frame is rotatably connected to the outer wall of the drive rod via an installation groove.

[0011] Preferably, an adapter cover is fixedly installed at the top of the connecting pipe, the interior of the adapter cover is connected to the top of the connecting pipe, the bottom of the connecting pipe is connected to the interior of the air guide pipe, and an air inlet is provided on the side wall of the adapter cover.

[0012] Preferably, the top end of the transfer tube is connected to the interior of the upper processing frame, and the bottom end of the transfer tube is connected to the interior of the lower processing frame.

[0013] Preferably, the bottom of the desulfurization tank is fitted with a bottom cover via a threaded structure, and a connecting discharge pipe is fixedly installed inside the bottom cover. A valve is fitted onto the discharge pipe. The top of the desulfurization tank is fitted with a filling pipe and an exhaust pipe, and a liquid level sensor is fixedly installed inside the desulfurization tank.

[0014] Preferably, the outer side of the gas guide pipe is fitted with a rotatably connected annular guide rail, and the outer wall of the annular guide rail is fixedly connected to the inner wall of the desulfurization tank.

[0015] Compared with related technologies, the desulfurization device for brick firing flue gas provided by this utility model has the following beneficial effects:

[0016] 1. This utility model injects flue gas from top to bottom, which can prevent liquid from flowing back into the flue gas pipe during use, thus making it easier for staff to clean the pipe later.

[0017] 2. By setting up the injection component, the injected flue gas will drive the blades to rotate the lower gas injection pipe during use. This driving method can achieve the rotation of the gas injection pipe without setting an additional driving force, thereby making the flue gas more dispersed and diffused, and helping to improve the contact and mixing effect between the flue gas and lime water. Attached Figure Description

[0018] Figure 1 A schematic diagram of a preferred embodiment of the desulfurization device for brick firing flue gas provided by this utility model;

[0019] Figure 2 for Figure 1 A partial cross-sectional structural diagram of the desulfurization tank shown.

[0020] Figure 3 for Figure 1 A schematic cross-sectional view of the connection between the gas delivery tube and the injection assembly;

[0021] Figure 4 for Figure 3 The diagram shows a partial cross-sectional structure of the connection between the upper and lower processing boxes.

[0022] The following are the labels in the diagram: 1. Desulfurization tank; 11. Bottom cover; 12. Discharge pipe; 121. Valve; 13. Filling pipe; 14. Exhaust pipe; 2. Air guide pipe; 21. Air injection pipe; 22. Connecting pipe; 221. Adapter cover; 222. Air inlet; 3. Injection assembly; 31. Upper treatment frame; 311. Air inlet pipe; 32. Lower treatment frame; 33. Adapter pipe; 34. Drive rod; 341. Blade; 4. Circular guide rail; 5. Liquid level sensor. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0025] Please see Figures 1 to 4 This utility model provides a desulfurization device for flue gas from brick firing. The desulfurization device includes a desulfurization tank 1, a rotatingly connected air guide pipe 2 inside the desulfurization tank 1, and multiple evenly distributed air injection pipes 21 installed at the bottom of the air guide pipe 2 through a threaded structure. The top of the air injection pipes 21 is connected to the inside of the air guide pipe 2, and an injection component 3 for injecting flue gas is also provided above the desulfurization tank 1.

[0026] In the embodiments of this utility model, please refer to Figures 1 to 4The injection component 3 includes an upper treatment frame 31 and a lower treatment frame 32. Both the upper and lower treatment frames 31 and 32 are fixedly installed on the top of the desulfurization tank 1 and are coaxially distributed. A connecting air inlet pipe 311 is fixedly installed on the side wall of the upper treatment frame 31. A connecting pipe 33 connects the upper and lower treatment frames 31 and 32. A drive rod 34 is rotatably installed inside the upper treatment frame 31. The bottom end of the drive rod 34 extends into the lower treatment frame 32 and is rotatably connected. A connecting pipe 22 connects the drive rod 34 and the air guide pipe 2. Multiple evenly distributed blades 341 are fixedly installed on the outer wall of the drive rod 34, and the outer wall of the blades 341 abuts against and slides against the inner wall of the upper treatment frame 31. The top of the sulfur tank 1 is rotatably connected to the outer wall of the connecting pipe 22 via an installation groove. The bottom of the lower treatment frame 32 is rotatably connected to the outer wall of the connecting pipe 22 via an installation groove. The top of the connecting pipe 22 extends into the lower treatment frame 32, and the top of the lower treatment frame 32 is rotatably connected to the outer wall of the drive rod 34 via an installation groove. A transition cover 221 is fixedly installed on the top of the connecting pipe 22. The interior of the transition cover 221 is connected to the top of the connecting pipe 22. The bottom of the connecting pipe 22 is connected to the interior of the gas guide pipe 2. An air inlet 222 is provided on the side wall of the transition cover 221. The top of the transition pipe 33 is connected to the interior of the upper treatment frame 31, and the bottom of the transition pipe 33 is connected to the interior of the lower treatment frame 32.

[0027] It should be noted that by setting the flue gas injection pipe above the desulfurization tank 1, when flue gas is injected later, the lime water in the desulfurization tank 1 can be prevented from flowing back into the pipe, which would cause the flue gas and lime water to react in the inlet pipe 311 and cause the inlet pipe 311 to become blocked.

[0028] In this embodiment: by setting the blades 341 on the outer wall of the drive rod 34, when the flue gas flows into the upper treatment frame 31 through the air inlet pipe 311 and blows the blades 341, the drive rod 34 will be rotated by the blades 341. The rotating drive rod 34 will then drive the air guide pipe 2 and the air injection pipe 21 below it to rotate through the adapter cover 221 and the connecting pipe 22, so that the air injection pipe 21 can stir the lime water in the desulfurization tank 1.

[0029] When the injected flue gas flows to the part opposite to the transfer pipe 33, it will flow into the lower processing frame 32 through the transfer pipe 33, and then flow into the transfer cover 221, connecting pipe 22, air guide pipe 2 and air injection pipe 21 through the air inlet 222. The flue gas in the air injection pipe 21 will be discharged into the lime water below. During this process, the rotation of the air injection pipe 21 can make the flue gas diffuse more evenly, so that the contact between the flue gas and the lime water can be more even, thereby helping to improve the reaction and mixing effect of the flue gas and the lime water.

[0030] In the embodiments of this utility model, please refer to Figures 1 to 4 The bottom of the desulfurization tank 1 is fitted with a bottom cover 11 via a threaded structure. A discharge pipe 12 is fixedly installed inside the bottom cover 11. A valve 121 is fitted on the discharge pipe 12. The top of the desulfurization tank 1 is fitted with a filling pipe 13 and an exhaust pipe 14. A liquid level sensor 5 is fixedly installed inside the desulfurization tank 1.

[0031] It should be noted that: by installing valve 121, when it is necessary to discharge the lime water after the reaction, valve 121 can be opened to discharge the lime water. After the lime water is discharged, the bottom cover 11 can be unscrewed to remove it. After the bottom cover 11 is removed, the bottom of the desulfurization tank 1 will be in an open state, so that the staff can unscrew and disassemble the gas injection pipe 21 inside the desulfurization tank 1, which will facilitate the staff to clean the substances produced by the reaction inside the gas injection pipe 21 later.

[0032] In this embodiment: by setting up the liquid level sensor 5, when adding lime water later, the staff can monitor the value of the liquid level sensor 5 through an external controller, so as to accurately control the height of the lime water, so that the staff can control the amount of lime water added, and keep the lime water always below the air duct 2, so as to avoid the reaction between the flue gas and the lime water in the air duct 2 later.

[0033] In the embodiments of this utility model, please refer to Figures 1 to 4 The outer side of the gas guide pipe 2 is fitted with a rotatably connected annular guide rail 4, and the outer wall of the annular guide rail 4 is fixedly connected to the inner wall of the desulfurization tank 1.

[0034] It should be noted that: by setting up the annular guide rail 4, when the drive rod 34 drives the air pipe 2 to rotate during use, the annular guide rail 4 can guide the rotating air pipe 2, thereby making the rotation of the air pipe 2 more stable.

[0035] The working principle of the desulfurization device for brick firing flue gas provided by this utility model is as follows:

[0036] When using this device, the operator can first connect the air inlet pipe 311 in the device to the external brick firing flue gas discharge pipe, so that the flue gas can flow smoothly through the air inlet pipe 311 into the upper processing frame 31. The flue gas flowing into the upper processing frame 31 will blow the blades 341 on the drive rod 34, thereby driving the drive rod 34 to rotate.

[0037] The rotating drive rod 34 will drive the lower connecting pipe 22 to rotate, and the rotating connecting pipe 22 will drive the bottom air guide pipe 2 and air injection pipe 21 to rotate, so that the air injection pipe 21 can stir and mix the lime water in the desulfurization tank 1.

[0038] During the process of the flue gas blowing the blades 341, when the flue gas rotates with the blades 341 to the position opposite to the transfer pipe 33, the flue gas will flow into the lower processing frame 32 through the transfer pipe 33. The flue gas flowing into the lower processing frame 32 will flow into the transfer hood 221 through the air inlet. The flue gas entering the transfer hood 221 will flow into the lower air guide pipe 2 and air injection pipe 21 through the connecting pipe 22. Then, it will be injected into the lime water through the air injection pipe 21. The rotation of the air injection pipe 21 can improve the uniformity of flue gas injection, making the contact reaction between the flue gas and the lime water more uniform. The flue gas after the reaction will be discharged to the outside through the exhaust pipe 14.

[0039] The circuits and controls involved in this utility model are all existing technologies and will not be described in detail here.

[0040] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A desulfurization device for flue gas from brick firing, characterized in that, include: The desulfurization tank (1) is provided with a rotating gas guide pipe (2) inside the desulfurization tank (1). Multiple evenly distributed gas injection pipes (21) are installed at the bottom of the gas guide pipe (2) through a threaded structure. The top of the gas injection pipe (21) is connected to the inside of the gas guide pipe (2). An injection component (3) for injecting flue gas is also provided above the desulfurization tank (1). The injection assembly (3) includes an upper processing frame (31) and a lower processing frame (32). The upper processing frame (31) and the lower processing frame (32) are both fixedly installed on the top of the desulfurization tank (1) and are coaxially distributed. A connecting air inlet pipe (311) is fixedly installed on the side wall of the upper processing frame (31). A connecting pipe (33) is installed between the upper processing frame (31) and the lower processing frame (32). A drive rod (34) is rotatably installed inside the upper processing frame (31). The bottom end of the drive rod (34) extends into the lower processing frame (32) and is rotatably connected. A connecting pipe (22) is provided between the drive rod (34) and the air guide pipe (2).

2. The desulfurization device for brick firing flue gas according to claim 1, characterized in that, Multiple uniformly distributed blades (341) are fixedly installed on the outer wall of the drive rod (34), and the outer wall of the blades (341) abuts against and slides with the inner wall of the upper processing frame (31).

3. The desulfurization device for brick firing flue gas according to claim 1, characterized in that, The top of the desulfurization tank (1) is rotatably connected to the outer wall of the connecting pipe (22) through the mounting groove, the bottom of the lower processing frame (32) is rotatably connected to the outer wall of the connecting pipe (22) through the mounting groove, the top of the connecting pipe (22) extends into the lower processing frame (32), and the top of the lower processing frame (32) is rotatably connected to the outer wall of the drive rod (34) through the mounting groove.

4. The desulfurization device for brick firing flue gas according to claim 3, characterized in that, The top end of the connecting pipe (22) is fixedly installed with an adapter cover (221). The interior of the adapter cover (221) is connected to the top end of the connecting pipe (22). The bottom end of the connecting pipe (22) is connected to the interior of the air guide pipe (2). An air inlet hole (222) is provided on the side wall of the adapter cover (221).

5. The desulfurization device for brick firing flue gas according to claim 1, characterized in that, The top end of the transfer tube (33) is connected to the interior of the upper processing frame (31), and the bottom end of the transfer tube (33) is connected to the interior of the lower processing frame (32).

6. The desulfurization device for brick firing flue gas according to claim 1, characterized in that, The bottom of the desulfurization tank (1) is fitted with a bottom cover (11) by a threaded structure. A discharge pipe (12) is fixedly installed inside the bottom cover (11). A valve (121) is fitted on the discharge pipe (12). A filling pipe (13) and an exhaust pipe (14) are fixedly installed on the top of the desulfurization tank (1). A liquid level sensor (5) is fixedly installed inside the desulfurization tank (1).

7. The desulfurization device for brick firing flue gas according to claim 1, characterized in that, The outer side of the gas guide pipe (2) is fitted with a rotating annular guide rail (4), and the outer wall of the annular guide rail (4) is fixedly connected to the inner wall of the desulfurization tank (1).

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