Chemical flue gas safety purification device

Abstract

The utility model relates to gas purification technical field discloses a kind of chemical flue gas safe purification device, comprising: purification cylinder, including air inlet cylinder and spray cylinder, spray cylinder is fixedly arranged above air inlet cylinder and is sealingly connected with it, the lower end of air inlet cylinder is open, and the upper end of spray cylinder is equipped with exhaust pipe;Spray subassembly, including several nozzles and water pipe, water pipe is fixedly arranged on the side wall of spray cylinder, nozzle is embedded and arranged on the side wall of spray cylinder, is arranged towards spray cylinder inside, and is communicated with water pipe;Flow guide subassembly, including flow guide seat and flow guide pipe, flow guide seat is fixedly arranged on the lower end of air inlet cylinder, is the conical shape of central upward protruding, and the side wall thereof is equipped with several air inlet holes, flow guide seat side wall is integrally formed with flow guide inclined plate outside air inlet hole side, flow guide pipe is fixedly arranged on the lower end edge of flow guide seat and the junction of air inlet cylinder inner wall, and its upper end is flush with the bottom of flow guide seat.The utility model has the advantages of: without using filter screen, long service period, without frequent cleaning.

Description

Technical Field

[0001] This utility model relates to the field of gas purification technology, specifically to a safety purification device for chemical flue gas. Background Technology

[0002] Chemical flue gas purification is a technical means of treating flue gas emitted during chemical production processes. Chemical production, such as oil refining, coal chemical processing, and acid and alkali manufacturing, generates flue gas containing sulfur dioxide, nitrogen oxides, particulate matter, volatile organic compounds, and other harmful components. Direct emission of this gas would pollute the atmosphere. This purification process removes particulate matter using dust removal equipment.

[0003] The primary step in chemical flue gas purification is removing floating impurities such as smoke and dust. Currently, the mainstream approach is to use filter screens for initial purification. These filters, woven from special fibers or metals, act like a three-dimensional barrier, effectively blocking dust and particulate matter in the flue gas and intercepting micron-sized particles. However, with prolonged use, the pores of the filter screen are easily clogged by impurities, leading to increased air resistance and decreased purification efficiency, requiring regular cleaning and maintenance. Traditional cleaning methods often rely on manual disassembly and rinsing or mechanical vibration dust removal, which are not only cumbersome and time-consuming but may also compromise equipment sealing due to frequent disassembly and reassembly. Utility Model Content

[0004] To solve the above-mentioned problems, this utility model proposes a chemical flue gas safety purification device that does not require the use of a filter screen, has a long service life, and does not require frequent cleaning.

[0005] To solve the above-mentioned technical problems, the technical solution proposed by this utility model is: a safety purification device for chemical flue gas, comprising:

[0006] The purification cylinder includes an air inlet cylinder and a spray cylinder. The spray cylinder is fixedly installed above the air inlet cylinder and sealed to it. The lower end of the air inlet cylinder is open, and the upper end of the spray cylinder is provided with an exhaust pipe.

[0007] A spray assembly includes several nozzles and a water pipe. The water pipe is fixedly installed on the side wall of the spray cylinder, and the nozzles are embedded in the side wall of the spray cylinder, facing the inside of the spray cylinder, and communicating with the water pipe.

[0008] The flow guiding assembly includes a flow guiding seat and a flow guiding tube. The flow guiding seat is fixedly installed at the lower end of the air inlet cylinder and is a cone-shaped structure with the center protruding upwards. Several air inlet holes are provided on its side wall. A flow guiding inclined plate is integrally formed on the side wall of the flow guiding seat outside the air inlet holes. The flow guiding tube is fixedly installed at the lower edge of the flow guiding seat where it connects with the inner wall of the air inlet cylinder, and its upper end is flush with the bottom of the flow guiding seat.

[0009] Furthermore, the air inlet cylinder and the spray cylinder are connected by a flange seal.

[0010] Furthermore, the water pipe is an annular pipe surrounding the spray cylinder, with an inlet on its side wall. The nozzles surround the spray cylinder and are equidistantly arranged inside the water pipe, and are connected to the water pipe through branch pipes.

[0011] Furthermore, the spray assembly is distributed in multiple sets both vertically.

[0012] Furthermore, the air inlets are equidistantly distributed around the central axis of the air guide seat.

[0013] Furthermore, the upper end of the guide plate is higher than the air inlet and integrally formed with the guide seat, while the lower end is lower than the air inlet and inclined to the outside of the guide seat, and it is ring-shaped around the guide seat.

[0014] Furthermore, the guide tubes are arranged at equal intervals around the central axis of the guide seat.

[0015] Compared with existing technologies, the advantages of this invention are as follows: In the spray assembly, multiple sets of circumferentially distributed nozzles, combined with annular water pipes, form an all-round, multi-stage spray purification system. Flue gas and water flow are in full contact, and pollutants are directly adsorbed and flushed by the water flow, eliminating the need for filters to intercept impurities. The design of the guide seat and guide pipe in the flow guiding assembly ensures smooth air intake and liquid drainage. The conical structure of the guide seat and the guide inclined plate prevent waste liquid from flowing back into the air intake hole, and the guide pipe promptly discharges the waste liquid generated during purification, avoiding waste liquid accumulation and blockage. The entire device relies on water spraying and reasonable flow guidance to reduce impurity residue and decrease the need for frequent cleaning due to blockage and scale buildup, thus extending the service life and reducing maintenance costs and workload. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present invention;

[0017] Figure 2 This is the front view of this utility model;

[0018] Figure 3 This is a top view of the present invention;

[0019] Figure 4 This is a cross-sectional view of the present invention.

[0020] As shown in the figure: 1. Air inlet cylinder; 2. Spray cylinder; 3. Exhaust pipe; 4. Nozzle; 5. Water pipe; 6. Flow guide seat; 7. Flow guide pipe; 8. Air inlet hole; 9. Flow guide inclined plate; 10. Water inlet; 11. Branch pipe. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings.

[0022] Combined with appendix Figure 1 Appendix Figure 2A chemical flue gas safety purification device includes: a purification cylinder, comprising an air inlet cylinder 1 and a spray cylinder 2. The spray cylinder 2 is fixedly installed above the air inlet cylinder 1 and sealed to it. The lower end of the air inlet cylinder 1 is open, and the upper end of the spray cylinder 2 is provided with an exhaust pipe 3. The air inlet cylinder 1 and the spray cylinder 2 are sealed together by a flange, which facilitates disassembly and installation, and makes it convenient for later maintenance and repair of the device. At the same time, it ensures the sealing of the connection and prevents flue gas leakage.

[0023] Combined with appendix Figure 2 Appendix Figure 3 Appendix Figure 4 The spray assembly includes several nozzles 4 and water pipes 5. The water pipes 5 are fixedly mounted on the side wall of the spray cylinder 2. The nozzles 4 are embedded in the side wall of the spray cylinder 2, facing inward and communicating with the water pipes 5. The water pipes 5 are annular pipes surrounding the spray cylinder 2, with water inlets 10 on their side walls. The nozzles 4 are equidistantly arranged around the spray cylinder 2 and inside the water pipes 5, and are connected to the water pipes 5 through branch pipes 11, ensuring uniform water supply to the water pipes 5 and consistent water flow from each nozzle 4, providing comprehensive and thorough purification of the flue gas. Multiple sets of the spray assembly are distributed vertically, extending the contact path between the flue gas and the water flow, increasing the contact time, achieving multi-stage purification, and significantly improving the purification effect on chemical flue gas.

[0024] Combined with appendix Figure 4 The flow guiding assembly includes a flow guiding seat 6 and a flow guiding pipe 7. The flow guiding seat 6 is fixedly installed at the lower end of the air inlet cylinder 1 and is a cone-shaped structure with the center convex upward. Several air inlet holes 8 are provided on its side wall. The air inlet holes 8 are equidistantly distributed around the central axis of the flow guiding seat 6, allowing the flue gas to enter the air inlet cylinder 1 evenly, avoiding excessive or insufficient local airflow, and ensuring a stable and efficient purification process. An integrally formed flow guiding inclined plate 9 is provided on the side wall of the flow guiding seat 6 outside the air inlet holes 8. The upper end of the flow guiding inclined plate 9 is higher than the air inlet holes 8 and integrally formed with the flow guiding seat 6, while the lower end is lower than the air inlet holes 8 and inclined towards the outside of the flow guiding seat 6. It also forms a ring around the flow guiding seat 6, effectively preventing waste liquid from entering the air inlet holes 8 and causing pollution and blockage, ensuring unobstructed air intake.

[0025] Combined with appendix Figure 1 Appendix Figure 4 The guide pipe 7 is fixedly installed at the lower edge of the guide seat 6 where it meets the inner wall of the air inlet cylinder 1, and its upper end is flush with the bottom of the guide seat 6. Several guide pipes 7 are arranged equidistantly around the central axis of the guide seat 6, which can quickly guide and discharge the waste liquid at the bottom of the air inlet cylinder 1, preventing the accumulation of waste liquid from affecting the normal operation of the device and the purification effect.

[0026] The specific implementation of this utility model is as follows: The inlet 10 is connected to an external treatment liquid supply device. Chemical flue gas enters from the open end of the inlet cylinder 1, passes through the guide seat 6, and then enters the inlet cylinder 1 evenly through the equidistantly distributed air inlet holes 8 on the side wall of the guide seat 6. Subsequently, the flue gas rises into the spray cylinder 2. Multiple sets of nozzles 4 arranged around the side wall of the spray cylinder 2 begin to operate. The water pipe 5, acting as a ring pipe, supplies water through the inlet 10 and delivers the water to each nozzle 4 via the branch pipe 11, causing the nozzles 4 to spray water into the spray cylinder 2. During the rising process, the flue gas comes into full contact with the water flow, and pollutants are adsorbed and flushed by the water flow, achieving multi-stage purification. The purified gas is discharged from the exhaust pipe 3, while the waste liquid generated during the purification process is quickly guided to the bottom of the inlet cylinder 1 by gravity through the guide pipe 7 to prevent waste liquid accumulation. The guide inclined plate 9 effectively prevents waste liquid from entering the air inlet holes 8, ensuring stable operation of the device and completing the safe purification process of the chemical flue gas.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; for those skilled in the art, the specific meaning of the above term in this utility model can be understood according to the specific circumstances.

[0028] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A safety purification device for chemical flue gas, characterized in that, include: The purification cylinder includes an air inlet cylinder (1) and a spray cylinder (2). The spray cylinder (2) is fixed above the air inlet cylinder (1) and sealed to it. The lower end of the air inlet cylinder (1) is open, and the upper end of the spray cylinder (2) is provided with an exhaust pipe (3). The spray assembly includes several nozzles (4) and water pipes (5). The water pipes (5) are fixedly installed on the side wall of the spray cylinder (2). The nozzles (4) are embedded in the side wall of the spray cylinder (2), facing the inside of the spray cylinder (2), and are connected to the water pipes (5). The flow guiding assembly includes a flow guiding seat (6) and a flow guiding pipe (7). The flow guiding seat (6) is fixedly installed at the lower end of the air inlet cylinder (1) and is a cone-shaped structure with the center protruding upward. Several air inlet holes (8) are provided on its side wall. A flow guiding inclined plate (9) is integrally formed on the side wall of the flow guiding seat (6) outside the air inlet holes (8). The flow guiding pipe (7) is fixedly installed at the lower edge of the flow guiding seat (6) where it connects with the inner wall of the air inlet cylinder (1), and its upper end is flush with the bottom of the flow guiding seat (6).

2. The chemical flue gas safety purification device according to claim 1, characterized in that: The air inlet cylinder (1) and the spray cylinder (2) are connected by a flange seal.

3. The chemical flue gas safety purification device according to claim 1, characterized in that: The water pipe (5) is an annular pipe surrounding the spray cylinder (2), with an inlet (10) on its side wall. The nozzle (4) surrounds the spray cylinder (2) and is equidistantly arranged inside the water pipe (5), and is connected to the water pipe (5) through a branch pipe (11).

4. The chemical flue gas safety purification device according to claim 1, characterized in that: The spray assembly is distributed in multiple sets both vertically.

5. The chemical flue gas safety purification device according to claim 1, characterized in that: The air inlet (8) is equidistantly distributed around the central axis of the guide seat (6).

6. The chemical flue gas safety purification device according to claim 1, characterized in that: The upper end of the guide plate (9) is higher than the air inlet (8) and integrally formed with the guide seat (6), while the lower end is lower than the air inlet (8) and inclined to the outside of the guide seat (6), and it is ring-shaped around the guide seat (6).

7. The chemical flue gas safety purification device according to claim 1, characterized in that: The guide tube (7) is provided at equal intervals around the central axis of the guide seat (6).

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