Kiln tail smoke plume prevention flue gas discharge device

Abstract

The utility model discloses a kiln tail anti-smoke plume flue gas emission device relates to flue gas treatment technical field, including desulfurization layer, transition layer and dehumidification layer, the inside fixed mounting of transition layer has the water delivery pipe, the bottom rotatable connection of water delivery pipe has four -way pipe, the outer wall of four -way pipe is connected with the branch pipe, the specific quantity of branch pipe is four, four branch pipe is distributed on the outer wall of four -way pipe and is in the circular array, and the outer wall of branch pipe is fixedly installed and is all inclined and sets up the spout, the specific quantity of spout is five, and five spouts are distributed on the outer wall of branch pipe and are in the linear array, in the utility model, through setting up the bottom rotatable four -way pipe of water delivery pipe, and setting up four branch pipes and multiple inclined and set up spout, make the device in the using process in the condition that does not change the liquid injection volume make the slurry spraying more uniform, improve the desulfurization efficiency of device whole, increase the practicality of device.

Description

Technical Field

[0001] This utility model relates to the field of flue gas treatment technology, specifically to a kiln tail smoke plume prevention and flue gas emission device. Background Technology

[0002] During the calcination of cement clinker, a large amount of high-temperature flue gas is generated, which contains high levels of pollutants such as sulfur dioxide (SO2). To reduce the SO2 content in the flue gas, wet desulfurization technology is usually used. However, traditional wet desulfurization technology has some problems, especially in the process of spraying and absorbing slurry. Due to the design of the conical spray nozzle, it often only sprays the central area, causing SO2 in the peripheral areas to easily escape, thus limiting the desulfurization efficiency.

[0003] In traditional desulfurization tower designs, the conical spray nozzle design causes the spray absorption slurry to be mainly concentrated in the central area of ​​the tower, while SO2 in the flue gas in the edge area cannot be fully absorbed, resulting in uneven desulfurization efficiency and some SO2 escape, which affects the overall discharge effect.

[0004] In view of this, a kiln tail smoke plume emission device is provided to overcome the above-mentioned defects. Utility Model Content

[0005] The purpose of this invention is to provide a kiln tail smoke plume emission device to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides a kiln tail smoke plume emission device, including a desulfurization layer, a transition layer and a dehumidification layer. A water supply pipe is fixedly installed inside the transition layer. A four-way pipe is rotatably connected to the bottom of the water supply pipe. A branch pipe is connected to the outer wall of the four-way pipe. The specific number of the four branch pipes is four. The four branch pipes are arranged in a circumferential array on the outer wall of the four-way pipe. A nozzle that is inclined as a whole is fixedly installed on the outer wall of the branch pipe. The specific number of the five nozzles is five. The five nozzles are arranged in a linear array on the outer wall of the branch pipe.

[0007] Furthermore, a lower partition plate is fixedly installed on the top of the desulfurization layer, and a circular groove is opened through the top surface of the lower partition plate. A flue gas collection port that is funnel-shaped is fixedly installed in the circular groove.

[0008] Furthermore, a transmission pipe is fixedly connected to the top of the smoke collection port, and an upper partition is provided above the transmission pipe. A through groove adapted to the transmission pipe is opened in the middle of the top surface of the upper partition, and the transmission pipe is connected to the interior of the dehumidification layer through the through groove.

[0009] Furthermore, two symmetrically arranged square blocks are installed at the middle of the top surface of the upper partition plate, and swirling impellers are fixedly installed on the top surface of the two square blocks. The swirling impellers are coaxially arranged with the top opening of the transmission pipe.

[0010] Furthermore, the top surface of the dehumidification layer is equipped with a smoke exhaust port that is integrally funnel-shaped, and multiple demisting blades are installed on the inner wall of the smoke exhaust port, with the multiple demisting blades distributed in a circumferential array.

[0011] Furthermore, the specific tilt angle of each of the aforementioned demisting blades is 30 degrees in the downwind direction.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] By setting a rotatable four-way pipe at the bottom of the water supply pipe, and setting four branch pipes and multiple inclined nozzles, the slurry can be sprayed more evenly without changing the amount of liquid sprayed during use, thereby improving the overall desulfurization efficiency of the device and increasing its practicality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the bottom structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the upper structure of this utility model;

[0017] Figure 4 for Figure 3 A schematic diagram of the cross-sectional structure at point AA.

[0018] In the diagram: 1. Desulfurization layer; 2. Transition layer; 3. Dehumidification layer; 4. Exhaust port; 5. Demisting blades; 6. Water supply pipe; 7. Four-way pipe; 8. Branch pipe; 9. Nozzle; 10. Smoke collection port; 11. Swirl impeller; 12. Upper baffle; 13. Lower baffle; 14. Transmission pipe. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1

[0021] See Figure 1-4A kiln tail smoke plume emission device includes a desulfurization layer 1, a transition layer 2, and a dehumidification layer 3. A water supply pipe 6 is fixedly installed inside the transition layer 2. A four-way pipe 7 is rotatably connected to the bottom of the water supply pipe 6. A branch pipe 8 is connected to the outer wall of the four-way pipe 7. The specific number of branch pipes 8 is four. The four branch pipes 8 are arranged in a circumferential array on the outer wall of the four-way pipe 7. A nozzle 9 is fixedly installed on the outer wall of the branch pipe 8. The specific number of nozzles 9 is five. The five nozzles 9 are arranged in a linear array on the outer wall of the branch pipe 8.

[0022] Furthermore, a lower baffle 13 is fixedly installed on the top of the desulfurization layer 1. A circular groove is formed through the top surface of the lower baffle 13, and a funnel-shaped flue gas collection port 10 is fixedly installed inside the circular groove. A transmission pipe 14 is fixedly connected to the top of the flue gas collection port 10. An upper baffle 12 is provided above the transmission pipe 14. A through groove adapted to the transmission pipe 14 is formed in the middle of the top surface of the upper baffle 12. The transmission pipe 14 is connected to the interior of the dehumidification layer 3 through the through groove. The funnel-shaped flue gas collection port 10 allows the flue gas to be transmitted to the interior of the transmission pipe 14 more quickly, while the through groove in the middle of the top surface of the upper baffle 12 allows the flue gas in the transmission pipe 14 to be smoothly transported into the interior of the dehumidification layer 3.

[0023] Furthermore, two symmetrically arranged square blocks are installed in the middle of the top surface of the upper baffle 12. A swirl impeller 11 is fixedly installed on the top surface of the two square blocks. The swirl impeller 11 is coaxial with the top opening of the transmission pipe 14. By setting the swirl impeller 11 and setting the swirl impeller 11 to be coaxial with the top opening of the transmission pipe 14, the flue gas rotates and moves forward around the cylinder wall of the dehumidification layer 3 under the guidance of the swirl impeller 11 after contacting it.

[0024] It should be noted that the top surface of the dehumidification layer 3 is equipped with a funnel-shaped exhaust port 4. Multiple demisting blades 5 are installed on the inner wall of the exhaust port 4. The multiple demisting blades 5 are arranged in a circumferential array. The specific tilt angle of the multiple demisting blades 5 is 30 degrees in the downwind direction. By setting the demisting blades 5 and setting the specific tilt angle of the multiple demisting blades 5 to 30 degrees in the downwind direction, the flue gas collides with the demisting blades 5 during the emission process, causing the mist droplets in the flue gas to separate and making the discharged flue gas dry.

[0025] Furthermore, the collection of droplets after separation in flue gas is well-established in existing technologies and is not the problem to be solved in this application, so it is not shown in the figure. In this application, the upper baffle 12 can be set into a funnel shape with a raised center and concave edges, and a drain pipe can be connected to the edge to properly treat the droplets in the flue gas.

[0026] In practice, when the device is desulfurizing, it is necessary to spray slurry to reduce the sulfur dioxide content in the flue gas. However, the desulfurization layer 1 in traditional desulfurization towers is mostly sprayed by a single cone-shaped nozzle. This method can only achieve the desulfurization effect in the middle part of the flue gas, while the flue gas at the edge will experience sulfur dioxide escape.

[0027] In this practical application, after the user delivers slurry into the transition layer 2 through the water supply pipe 6, the slurry will be simultaneously delivered into four branch pipes 8 through the transition layer 2, and then sprayed out from multiple nozzles 9 from the four branch pipes 8. The multiple nozzles 9 are all inclined and the four-way pipe 7 is rotatably connected to the bottom of the water supply pipe 6. Therefore, under the thrust of the slurry spraying, the four-way pipe 7 will rotate. At the same time, under the centrifugal force of the rotation of the four-way pipe 7, the slurry sprayed from the nozzles 9 will be sprayed at a larger angle, making the slurry spray more uniform without changing the spray volume.

[0028] By setting a rotatable four-way pipe 7 at the bottom of the water supply pipe 6, and setting four branch pipes 8 and multiple inclined nozzles 9, the slurry can be sprayed more evenly without changing the amount of liquid sprayed during use, thereby improving the overall desulfurization efficiency of the device and increasing its practicality.

[0029] Working principle: When the device is desulfurizing, it is necessary to spray slurry to reduce the sulfur dioxide content in the flue gas. However, the desulfurization layer 1 in traditional desulfurization towers is mostly sprayed by a single cone-shaped nozzle. This method can only achieve the desulfurization effect in the middle part of the flue gas, while the flue gas at the edge will experience the phenomenon of sulfur dioxide escaping from the edge.

[0030] In this practical application, after the user delivers slurry into the transition layer 2 through the water supply pipe 6, the slurry will be simultaneously delivered into four branch pipes 8 through the transition layer 2, and then sprayed out from multiple nozzles 9 from the four branch pipes 8. The multiple nozzles 9 are all inclined and the four-way pipe 7 is rotatably connected to the bottom of the water supply pipe 6. Therefore, under the thrust of the slurry spraying, the four-way pipe 7 will rotate. At the same time, under the centrifugal force of the rotation of the four-way pipe 7, the slurry sprayed from the nozzles 9 will be sprayed at a larger angle, making the slurry spray more uniform without changing the spray volume.

[0031] By setting a rotatable four-way pipe 7 at the bottom of the water supply pipe 6, and setting four branch pipes 8 and multiple inclined nozzles 9, the slurry can be sprayed more evenly without changing the amount of liquid sprayed during use, thereby improving the overall desulfurization efficiency of the device and increasing its practicality.

Claims

1. A kiln tail smoke plume emission device, comprising a desulfurization layer (1), a transition layer (2), and a dehumidification layer (3), characterized in that, The transition layer (2) is fixedly installed with a water supply pipe (6). The bottom of the water supply pipe (6) is rotatably connected to a four-way pipe (7). The outer wall of the four-way pipe (7) is connected to a branch pipe (8). The specific number of the branch pipe (8) is four. The four branch pipes (8) are arranged in a circular array on the outer wall of the four-way pipe (7). The outer wall of the branch pipe (8) is fixedly installed with an overall inclined nozzle (9). The specific number of the nozzle (9) is five. The five nozzles (9) are arranged in a linear array on the outer wall of the branch pipe (8).

2. The kiln tail smoke and plume emission device as described in claim 1, characterized in that: A lower partition plate (13) is fixedly installed on the top of the desulfurization layer (1). A circular groove is opened through the top surface of the lower partition plate (13), and a flue gas collection port (10) in the shape of a funnel is fixedly installed in the circular groove.

3. The kiln tail smoke and plume emission device as described in claim 2, characterized in that: The top of the smoke collection port (10) is fixedly connected to a transmission pipe (14), and an upper partition (12) is provided above the transmission pipe (14). A through groove adapted to the transmission pipe (14) is opened in the middle of the top surface of the upper partition (12), and the transmission pipe (14) is connected to the interior of the dehumidification layer (3) through the through groove.

4. The kiln tail smoke and plume emission device as described in claim 3, characterized in that: Two symmetrically arranged square blocks are installed in the middle of the top surface of the upper partition (12). A swirl impeller (11) is fixedly installed on the top surface of the two square blocks. The swirl impeller (11) and the top opening of the transmission pipe (14) are coaxially arranged.

5. The kiln tail smoke and plume emission device as described in claim 4, characterized in that: The top surface of the dehumidification layer (3) is equipped with a funnel-shaped exhaust port (4), and multiple demisting blades (5) are installed on the inner wall of the exhaust port (4), which are arranged in a circumferential array.

6. The kiln tail smoke and plume emission device as described in claim 5, characterized in that: The specific tilt angle of all the aforementioned demisting blades (5) is 30 degrees in the downwind direction.

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